From 464b4d9b8282e0f1e5040e4914505f91ce4d3750 Mon Sep 17 00:00:00 2001 From: Yangbo Lu Date: Mon, 25 Sep 2017 12:06:25 +0800 Subject: [PATCH] fsl-mc: layerscape support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This is a integrated patch for layerscape mc-bus support. Signed-off-by: Stuart Yoder Signed-off-by: Bharat Bhushan Signed-off-by: Arnd Bergmann Signed-off-by: Laurentiu Tudor Signed-off-by: Roy Pledge Signed-off-by: Shiva Kerdel Signed-off-by: Nipun Gupta Signed-off-by: Ioana Ciornei Signed-off-by: Horia Geantă Signed-off-by: Yangbo Lu --- drivers/staging/fsl-mc/bus/Kconfig | 41 +- drivers/staging/fsl-mc/bus/Makefile | 10 +- drivers/staging/fsl-mc/bus/dpbp-cmd.h | 80 ++ drivers/staging/fsl-mc/bus/dpbp.c | 450 +-------- drivers/staging/fsl-mc/bus/dpcon-cmd.h | 85 ++ drivers/staging/fsl-mc/bus/dpcon.c | 317 ++++++ drivers/staging/fsl-mc/bus/dpio/Makefile | 11 + .../{include/dpcon-cmd.h => bus/dpio/dpio-cmd.h} | 73 +- drivers/staging/fsl-mc/bus/dpio/dpio-driver.c | 296 ++++++ drivers/staging/fsl-mc/bus/dpio/dpio-driver.txt | 135 +++ drivers/staging/fsl-mc/bus/dpio/dpio-service.c | 689 +++++++++++++ drivers/staging/fsl-mc/bus/dpio/dpio.c | 224 +++++ drivers/staging/fsl-mc/bus/dpio/dpio.h | 109 ++ drivers/staging/fsl-mc/bus/dpio/qbman-portal.c | 1049 ++++++++++++++++++++ drivers/staging/fsl-mc/bus/dpio/qbman-portal.h | 662 ++++++++++++ drivers/staging/fsl-mc/bus/dpio/qbman_debug.c | 853 ++++++++++++++++ drivers/staging/fsl-mc/bus/dpio/qbman_debug.h | 136 +++ drivers/staging/fsl-mc/bus/dpio/qbman_private.h | 171 ++++ drivers/staging/fsl-mc/bus/dpmcp-cmd.h | 112 +-- drivers/staging/fsl-mc/bus/dpmcp.c | 374 +------ drivers/staging/fsl-mc/bus/dpmcp.h | 127 +-- drivers/staging/fsl-mc/bus/dpmng-cmd.h | 14 +- drivers/staging/fsl-mc/bus/dpmng.c | 37 +- drivers/staging/fsl-mc/bus/dprc-cmd.h | 82 +- drivers/staging/fsl-mc/bus/dprc-driver.c | 38 +- drivers/staging/fsl-mc/bus/dprc.c | 629 +----------- drivers/staging/fsl-mc/bus/fsl-mc-allocator.c | 78 +- drivers/staging/fsl-mc/bus/fsl-mc-bus.c | 318 +++--- drivers/staging/fsl-mc/bus/fsl-mc-iommu.c | 104 ++ drivers/staging/fsl-mc/bus/fsl-mc-msi.c | 3 +- drivers/staging/fsl-mc/bus/fsl-mc-private.h | 6 +- .../staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c | 11 +- drivers/staging/fsl-mc/bus/mc-io.c | 4 +- drivers/staging/fsl-mc/bus/mc-ioctl.h | 22 + drivers/staging/fsl-mc/bus/mc-restool.c | 405 ++++++++ drivers/staging/fsl-mc/bus/mc-sys.c | 14 +- drivers/staging/fsl-mc/include/dpaa2-fd.h | 706 +++++++++++++ drivers/staging/fsl-mc/include/dpaa2-global.h | 202 ++++ drivers/staging/fsl-mc/include/dpaa2-io.h | 190 ++++ drivers/staging/fsl-mc/include/dpbp-cmd.h | 185 ---- drivers/staging/fsl-mc/include/dpbp.h | 158 +-- drivers/staging/fsl-mc/include/dpcon.h | 115 +++ drivers/staging/fsl-mc/include/dpmng.h | 16 +- drivers/staging/fsl-mc/include/dpopr.h | 110 ++ drivers/staging/fsl-mc/include/dprc.h | 470 +++------ drivers/staging/fsl-mc/include/mc-bus.h | 7 +- drivers/staging/fsl-mc/include/mc-cmd.h | 44 +- drivers/staging/fsl-mc/include/mc-sys.h | 3 +- drivers/staging/fsl-mc/include/mc.h | 17 +- 49 files changed, 7380 insertions(+), 2612 deletions(-) create mode 100644 drivers/staging/fsl-mc/bus/dpbp-cmd.h create mode 100644 drivers/staging/fsl-mc/bus/dpcon-cmd.h create mode 100644 drivers/staging/fsl-mc/bus/dpcon.c create mode 100644 drivers/staging/fsl-mc/bus/dpio/Makefile rename drivers/staging/fsl-mc/{include/dpcon-cmd.h => bus/dpio/dpio-cmd.h} (64%) create mode 100644 drivers/staging/fsl-mc/bus/dpio/dpio-driver.c create mode 100644 drivers/staging/fsl-mc/bus/dpio/dpio-driver.txt create mode 100644 drivers/staging/fsl-mc/bus/dpio/dpio-service.c create mode 100644 drivers/staging/fsl-mc/bus/dpio/dpio.c create mode 100644 drivers/staging/fsl-mc/bus/dpio/dpio.h create mode 100644 drivers/staging/fsl-mc/bus/dpio/qbman-portal.c create mode 100644 drivers/staging/fsl-mc/bus/dpio/qbman-portal.h create mode 100644 drivers/staging/fsl-mc/bus/dpio/qbman_debug.c create mode 100644 drivers/staging/fsl-mc/bus/dpio/qbman_debug.h create mode 100644 drivers/staging/fsl-mc/bus/dpio/qbman_private.h create mode 100644 drivers/staging/fsl-mc/bus/fsl-mc-iommu.c create mode 100644 drivers/staging/fsl-mc/bus/mc-ioctl.h create mode 100644 drivers/staging/fsl-mc/bus/mc-restool.c create mode 100644 drivers/staging/fsl-mc/include/dpaa2-fd.h create mode 100644 drivers/staging/fsl-mc/include/dpaa2-global.h create mode 100644 drivers/staging/fsl-mc/include/dpaa2-io.h delete mode 100644 drivers/staging/fsl-mc/include/dpbp-cmd.h create mode 100644 drivers/staging/fsl-mc/include/dpcon.h create mode 100644 drivers/staging/fsl-mc/include/dpopr.h --- a/drivers/staging/fsl-mc/bus/Kconfig +++ b/drivers/staging/fsl-mc/bus/Kconfig @@ -1,25 +1,40 @@ # -# Freescale Management Complex (MC) bus drivers +# DPAA2 fsl-mc bus # -# Copyright (C) 2014 Freescale Semiconductor, Inc. +# Copyright (C) 2014-2016 Freescale Semiconductor, Inc. # # This file is released under the GPLv2 # config FSL_MC_BUS - bool "Freescale Management Complex (MC) bus driver" - depends on OF && ARM64 + bool "QorIQ DPAA2 fsl-mc bus driver" + depends on OF && ARCH_LAYERSCAPE select GENERIC_MSI_IRQ_DOMAIN help - Driver to enable the bus infrastructure for the Freescale - QorIQ Management Complex (fsl-mc). The fsl-mc is a hardware - module of the QorIQ LS2 SoCs, that does resource management - for hardware building-blocks in the SoC that can be used - to dynamically create networking hardware objects such as - network interfaces (NICs), crypto accelerator instances, - or L2 switches. + Driver to enable the bus infrastructure for the QorIQ DPAA2 + architecture. The fsl-mc bus driver handles discovery of + DPAA2 objects (which are represented as Linux devices) and + binding objects to drivers. - Only enable this option when building the kernel for - Freescale QorQIQ LS2xxxx SoCs. +config FSL_MC_DPIO + tristate "QorIQ DPAA2 DPIO driver" + depends on FSL_MC_BUS + help + Driver for the DPAA2 DPIO object. A DPIO provides queue and + buffer management facilities for software to interact with + other DPAA2 objects. This driver does not expose the DPIO + objects individually, but groups them under a service layer + API. +config FSL_QBMAN_DEBUG + tristate "Freescale QBMAN Debug APIs" + depends on FSL_MC_DPIO + help + QBMan debug assistant APIs. +config FSL_MC_RESTOOL + tristate "Freescale Management Complex (MC) restool driver" + depends on FSL_MC_BUS + help + Driver that provides kernel support for the Freescale Management + Complex resource manager user-space tool. --- a/drivers/staging/fsl-mc/bus/Makefile +++ b/drivers/staging/fsl-mc/bus/Makefile @@ -17,4 +17,12 @@ mc-bus-driver-objs := fsl-mc-bus.o \ fsl-mc-msi.o \ irq-gic-v3-its-fsl-mc-msi.o \ dpmcp.o \ - dpbp.o + dpbp.o \ + dpcon.o \ + fsl-mc-iommu.o + +# MC DPIO driver +obj-$(CONFIG_FSL_MC_DPIO) += dpio/ + +# MC restool kernel support +obj-$(CONFIG_FSL_MC_RESTOOL) += mc-restool.o --- /dev/null +++ b/drivers/staging/fsl-mc/bus/dpbp-cmd.h @@ -0,0 +1,80 @@ +/* + * Copyright 2013-2016 Freescale Semiconductor Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the above-listed copyright holders nor the + * names of any contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef _FSL_DPBP_CMD_H +#define _FSL_DPBP_CMD_H + +/* DPBP Version */ +#define DPBP_VER_MAJOR 3 +#define DPBP_VER_MINOR 2 + +/* Command versioning */ +#define DPBP_CMD_BASE_VERSION 1 +#define DPBP_CMD_ID_OFFSET 4 + +#define DPBP_CMD(id) ((id << DPBP_CMD_ID_OFFSET) | DPBP_CMD_BASE_VERSION) + +/* Command IDs */ +#define DPBP_CMDID_CLOSE DPBP_CMD(0x800) +#define DPBP_CMDID_OPEN DPBP_CMD(0x804) +#define DPBP_CMDID_GET_API_VERSION DPBP_CMD(0xa04) + +#define DPBP_CMDID_ENABLE DPBP_CMD(0x002) +#define DPBP_CMDID_DISABLE DPBP_CMD(0x003) +#define DPBP_CMDID_GET_ATTR DPBP_CMD(0x004) +#define DPBP_CMDID_RESET DPBP_CMD(0x005) +#define DPBP_CMDID_IS_ENABLED DPBP_CMD(0x006) + +struct dpbp_cmd_open { + __le32 dpbp_id; +}; + +struct dpbp_cmd_destroy { + __le32 object_id; +}; + +#define DPBP_ENABLE 0x1 + +struct dpbp_rsp_is_enabled { + u8 enabled; +}; + +struct dpbp_rsp_get_attributes { + /* response word 0 */ + __le16 pad; + __le16 bpid; + __le32 id; + /* response word 1 */ + __le16 version_major; + __le16 version_minor; +}; + +#endif /* _FSL_DPBP_CMD_H */ --- a/drivers/staging/fsl-mc/bus/dpbp.c +++ b/drivers/staging/fsl-mc/bus/dpbp.c @@ -1,4 +1,5 @@ -/* Copyright 2013-2016 Freescale Semiconductor Inc. +/* + * Copyright 2013-2016 Freescale Semiconductor Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: @@ -11,7 +12,6 @@ * names of any contributors may be used to endorse or promote products * derived from this software without specific prior written permission. * - * * ALTERNATIVELY, this software may be distributed under the terms of the * GNU General Public License ("GPL") as published by the Free Software * Foundation, either version 2 of that License or (at your option) any @@ -32,7 +32,8 @@ #include "../include/mc-sys.h" #include "../include/mc-cmd.h" #include "../include/dpbp.h" -#include "../include/dpbp-cmd.h" + +#include "dpbp-cmd.h" /** * dpbp_open() - Open a control session for the specified object. @@ -105,74 +106,6 @@ int dpbp_close(struct fsl_mc_io *mc_io, EXPORT_SYMBOL(dpbp_close); /** - * dpbp_create() - Create the DPBP object. - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @cfg: Configuration structure - * @token: Returned token; use in subsequent API calls - * - * Create the DPBP object, allocate required resources and - * perform required initialization. - * - * The object can be created either by declaring it in the - * DPL file, or by calling this function. - * This function returns a unique authentication token, - * associated with the specific object ID and the specific MC - * portal; this token must be used in all subsequent calls to - * this specific object. For objects that are created using the - * DPL file, call dpbp_open function to get an authentication - * token first. - * - * Return: '0' on Success; Error code otherwise. - */ -int dpbp_create(struct fsl_mc_io *mc_io, - u32 cmd_flags, - const struct dpbp_cfg *cfg, - u16 *token) -{ - struct mc_command cmd = { 0 }; - int err; - - (void)(cfg); /* unused */ - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPBP_CMDID_CREATE, - cmd_flags, 0); - - /* send command to mc*/ - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - *token = mc_cmd_hdr_read_token(&cmd); - - return 0; -} - -/** - * dpbp_destroy() - Destroy the DPBP object and release all its resources. - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPBP object - * - * Return: '0' on Success; error code otherwise. - */ -int dpbp_destroy(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token) -{ - struct mc_command cmd = { 0 }; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPBP_CMDID_DESTROY, - cmd_flags, token); - - /* send command to mc*/ - return mc_send_command(mc_io, &cmd); -} - -/** * dpbp_enable() - Enable the DPBP. * @mc_io: Pointer to MC portal's I/O object * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' @@ -250,6 +183,7 @@ int dpbp_is_enabled(struct fsl_mc_io *mc return 0; } +EXPORT_SYMBOL(dpbp_is_enabled); /** * dpbp_reset() - Reset the DPBP, returns the object to initial state. @@ -272,310 +206,7 @@ int dpbp_reset(struct fsl_mc_io *mc_io, /* send command to mc*/ return mc_send_command(mc_io, &cmd); } - -/** - * dpbp_set_irq() - Set IRQ information for the DPBP to trigger an interrupt. - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPBP object - * @irq_index: Identifies the interrupt index to configure - * @irq_cfg: IRQ configuration - * - * Return: '0' on Success; Error code otherwise. - */ -int dpbp_set_irq(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - struct dpbp_irq_cfg *irq_cfg) -{ - struct mc_command cmd = { 0 }; - struct dpbp_cmd_set_irq *cmd_params; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPBP_CMDID_SET_IRQ, - cmd_flags, token); - cmd_params = (struct dpbp_cmd_set_irq *)cmd.params; - cmd_params->irq_index = irq_index; - cmd_params->irq_val = cpu_to_le32(irq_cfg->val); - cmd_params->irq_addr = cpu_to_le64(irq_cfg->addr); - cmd_params->irq_num = cpu_to_le32(irq_cfg->irq_num); - - /* send command to mc*/ - return mc_send_command(mc_io, &cmd); -} - -/** - * dpbp_get_irq() - Get IRQ information from the DPBP. - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPBP object - * @irq_index: The interrupt index to configure - * @type: Interrupt type: 0 represents message interrupt - * type (both irq_addr and irq_val are valid) - * @irq_cfg: IRQ attributes - * - * Return: '0' on Success; Error code otherwise. - */ -int dpbp_get_irq(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - int *type, - struct dpbp_irq_cfg *irq_cfg) -{ - struct mc_command cmd = { 0 }; - struct dpbp_cmd_get_irq *cmd_params; - struct dpbp_rsp_get_irq *rsp_params; - int err; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_IRQ, - cmd_flags, token); - cmd_params = (struct dpbp_cmd_get_irq *)cmd.params; - cmd_params->irq_index = irq_index; - - /* send command to mc*/ - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - rsp_params = (struct dpbp_rsp_get_irq *)cmd.params; - irq_cfg->val = le32_to_cpu(rsp_params->irq_val); - irq_cfg->addr = le64_to_cpu(rsp_params->irq_addr); - irq_cfg->irq_num = le32_to_cpu(rsp_params->irq_num); - *type = le32_to_cpu(rsp_params->type); - - return 0; -} - -/** - * dpbp_set_irq_enable() - Set overall interrupt state. - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPBP object - * @irq_index: The interrupt index to configure - * @en: Interrupt state - enable = 1, disable = 0 - * - * Allows GPP software to control when interrupts are generated. - * Each interrupt can have up to 32 causes. The enable/disable control's the - * overall interrupt state. if the interrupt is disabled no causes will cause - * an interrupt. - * - * Return: '0' on Success; Error code otherwise. - */ -int dpbp_set_irq_enable(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u8 en) -{ - struct mc_command cmd = { 0 }; - struct dpbp_cmd_set_irq_enable *cmd_params; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPBP_CMDID_SET_IRQ_ENABLE, - cmd_flags, token); - cmd_params = (struct dpbp_cmd_set_irq_enable *)cmd.params; - cmd_params->enable = en & DPBP_ENABLE; - cmd_params->irq_index = irq_index; - - /* send command to mc*/ - return mc_send_command(mc_io, &cmd); -} - -/** - * dpbp_get_irq_enable() - Get overall interrupt state - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPBP object - * @irq_index: The interrupt index to configure - * @en: Returned interrupt state - enable = 1, disable = 0 - * - * Return: '0' on Success; Error code otherwise. - */ -int dpbp_get_irq_enable(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u8 *en) -{ - struct mc_command cmd = { 0 }; - struct dpbp_cmd_get_irq_enable *cmd_params; - struct dpbp_rsp_get_irq_enable *rsp_params; - int err; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_IRQ_ENABLE, - cmd_flags, token); - cmd_params = (struct dpbp_cmd_get_irq_enable *)cmd.params; - cmd_params->irq_index = irq_index; - - /* send command to mc*/ - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - rsp_params = (struct dpbp_rsp_get_irq_enable *)cmd.params; - *en = rsp_params->enabled & DPBP_ENABLE; - return 0; -} - -/** - * dpbp_set_irq_mask() - Set interrupt mask. - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPBP object - * @irq_index: The interrupt index to configure - * @mask: Event mask to trigger interrupt; - * each bit: - * 0 = ignore event - * 1 = consider event for asserting IRQ - * - * Every interrupt can have up to 32 causes and the interrupt model supports - * masking/unmasking each cause independently - * - * Return: '0' on Success; Error code otherwise. - */ -int dpbp_set_irq_mask(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u32 mask) -{ - struct mc_command cmd = { 0 }; - struct dpbp_cmd_set_irq_mask *cmd_params; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPBP_CMDID_SET_IRQ_MASK, - cmd_flags, token); - cmd_params = (struct dpbp_cmd_set_irq_mask *)cmd.params; - cmd_params->mask = cpu_to_le32(mask); - cmd_params->irq_index = irq_index; - - /* send command to mc*/ - return mc_send_command(mc_io, &cmd); -} - -/** - * dpbp_get_irq_mask() - Get interrupt mask. - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPBP object - * @irq_index: The interrupt index to configure - * @mask: Returned event mask to trigger interrupt - * - * Every interrupt can have up to 32 causes and the interrupt model supports - * masking/unmasking each cause independently - * - * Return: '0' on Success; Error code otherwise. - */ -int dpbp_get_irq_mask(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u32 *mask) -{ - struct mc_command cmd = { 0 }; - struct dpbp_cmd_get_irq_mask *cmd_params; - struct dpbp_rsp_get_irq_mask *rsp_params; - int err; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_IRQ_MASK, - cmd_flags, token); - cmd_params = (struct dpbp_cmd_get_irq_mask *)cmd.params; - cmd_params->irq_index = irq_index; - - /* send command to mc*/ - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - rsp_params = (struct dpbp_rsp_get_irq_mask *)cmd.params; - *mask = le32_to_cpu(rsp_params->mask); - - return 0; -} - -/** - * dpbp_get_irq_status() - Get the current status of any pending interrupts. - * - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPBP object - * @irq_index: The interrupt index to configure - * @status: Returned interrupts status - one bit per cause: - * 0 = no interrupt pending - * 1 = interrupt pending - * - * Return: '0' on Success; Error code otherwise. - */ -int dpbp_get_irq_status(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u32 *status) -{ - struct mc_command cmd = { 0 }; - struct dpbp_cmd_get_irq_status *cmd_params; - struct dpbp_rsp_get_irq_status *rsp_params; - int err; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_IRQ_STATUS, - cmd_flags, token); - cmd_params = (struct dpbp_cmd_get_irq_status *)cmd.params; - cmd_params->status = cpu_to_le32(*status); - cmd_params->irq_index = irq_index; - - /* send command to mc*/ - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - rsp_params = (struct dpbp_rsp_get_irq_status *)cmd.params; - *status = le32_to_cpu(rsp_params->status); - - return 0; -} - -/** - * dpbp_clear_irq_status() - Clear a pending interrupt's status - * - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPBP object - * @irq_index: The interrupt index to configure - * @status: Bits to clear (W1C) - one bit per cause: - * 0 = don't change - * 1 = clear status bit - * - * Return: '0' on Success; Error code otherwise. - */ -int dpbp_clear_irq_status(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u32 status) -{ - struct mc_command cmd = { 0 }; - struct dpbp_cmd_clear_irq_status *cmd_params; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPBP_CMDID_CLEAR_IRQ_STATUS, - cmd_flags, token); - cmd_params = (struct dpbp_cmd_clear_irq_status *)cmd.params; - cmd_params->status = cpu_to_le32(status); - cmd_params->irq_index = irq_index; - - /* send command to mc*/ - return mc_send_command(mc_io, &cmd); -} +EXPORT_SYMBOL(dpbp_reset); /** * dpbp_get_attributes - Retrieve DPBP attributes. @@ -609,83 +240,40 @@ int dpbp_get_attributes(struct fsl_mc_io rsp_params = (struct dpbp_rsp_get_attributes *)cmd.params; attr->bpid = le16_to_cpu(rsp_params->bpid); attr->id = le32_to_cpu(rsp_params->id); - attr->version.major = le16_to_cpu(rsp_params->version_major); - attr->version.minor = le16_to_cpu(rsp_params->version_minor); return 0; } EXPORT_SYMBOL(dpbp_get_attributes); /** - * dpbp_set_notifications() - Set notifications towards software - * @mc_io: Pointer to MC portal's I/O object + * dpbp_get_api_version - Get Data Path Buffer Pool API version + * @mc_io: Pointer to Mc portal's I/O object * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPBP object - * @cfg: notifications configuration + * @major_ver: Major version of Buffer Pool API + * @minor_ver: Minor version of Buffer Pool API * * Return: '0' on Success; Error code otherwise. */ -int dpbp_set_notifications(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - struct dpbp_notification_cfg *cfg) +int dpbp_get_api_version(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 *major_ver, + u16 *minor_ver) { struct mc_command cmd = { 0 }; - struct dpbp_cmd_set_notifications *cmd_params; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPBP_CMDID_SET_NOTIFICATIONS, - cmd_flags, token); - cmd_params = (struct dpbp_cmd_set_notifications *)cmd.params; - cmd_params->depletion_entry = cpu_to_le32(cfg->depletion_entry); - cmd_params->depletion_exit = cpu_to_le32(cfg->depletion_exit); - cmd_params->surplus_entry = cpu_to_le32(cfg->surplus_entry); - cmd_params->surplus_exit = cpu_to_le32(cfg->surplus_exit); - cmd_params->options = cpu_to_le16(cfg->options); - cmd_params->message_ctx = cpu_to_le64(cfg->message_ctx); - cmd_params->message_iova = cpu_to_le64(cfg->message_iova); - - /* send command to mc*/ - return mc_send_command(mc_io, &cmd); -} - -/** - * dpbp_get_notifications() - Get the notifications configuration - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPBP object - * @cfg: notifications configuration - * - * Return: '0' on Success; Error code otherwise. - */ -int dpbp_get_notifications(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - struct dpbp_notification_cfg *cfg) -{ - struct mc_command cmd = { 0 }; - struct dpbp_rsp_get_notifications *rsp_params; int err; /* prepare command */ - cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_NOTIFICATIONS, - cmd_flags, - token); + cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_API_VERSION, + cmd_flags, 0); - /* send command to mc*/ + /* send command to mc */ err = mc_send_command(mc_io, &cmd); if (err) return err; /* retrieve response parameters */ - rsp_params = (struct dpbp_rsp_get_notifications *)cmd.params; - cfg->depletion_entry = le32_to_cpu(rsp_params->depletion_entry); - cfg->depletion_exit = le32_to_cpu(rsp_params->depletion_exit); - cfg->surplus_entry = le32_to_cpu(rsp_params->surplus_entry); - cfg->surplus_exit = le32_to_cpu(rsp_params->surplus_exit); - cfg->options = le16_to_cpu(rsp_params->options); - cfg->message_ctx = le64_to_cpu(rsp_params->message_ctx); - cfg->message_iova = le64_to_cpu(rsp_params->message_iova); + mc_cmd_read_api_version(&cmd, major_ver, minor_ver); return 0; } +EXPORT_SYMBOL(dpbp_get_api_version); --- /dev/null +++ b/drivers/staging/fsl-mc/bus/dpcon-cmd.h @@ -0,0 +1,85 @@ +/* + * Copyright 2013-2016 Freescale Semiconductor Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the above-listed copyright holders nor the + * names of any contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef _FSL_DPCON_CMD_H +#define _FSL_DPCON_CMD_H + +/* DPCON Version */ +#define DPCON_VER_MAJOR 3 +#define DPCON_VER_MINOR 2 + +/* Command versioning */ +#define DPCON_CMD_BASE_VERSION 1 +#define DPCON_CMD_ID_OFFSET 4 + +#define DPCON_CMD(id) (((id) << DPCON_CMD_ID_OFFSET) | DPCON_CMD_BASE_VERSION) + +/* Command IDs */ +#define DPCON_CMDID_CLOSE DPCON_CMD(0x800) +#define DPCON_CMDID_OPEN DPCON_CMD(0x808) +#define DPCON_CMDID_GET_API_VERSION DPCON_CMD(0xa08) + +#define DPCON_CMDID_ENABLE DPCON_CMD(0x002) +#define DPCON_CMDID_DISABLE DPCON_CMD(0x003) +#define DPCON_CMDID_GET_ATTR DPCON_CMD(0x004) +#define DPCON_CMDID_RESET DPCON_CMD(0x005) +#define DPCON_CMDID_IS_ENABLED DPCON_CMD(0x006) + +#define DPCON_CMDID_SET_NOTIFICATION DPCON_CMD(0x100) + +struct dpcon_cmd_open { + __le32 dpcon_id; +}; + +#define DPCON_ENABLE 1 + +struct dpcon_rsp_is_enabled { + u8 enabled; +}; + +struct dpcon_rsp_get_attr { + /* response word 0 */ + __le32 id; + __le16 qbman_ch_id; + u8 num_priorities; + u8 pad; +}; + +struct dpcon_cmd_set_notification { + /* cmd word 0 */ + __le32 dpio_id; + u8 priority; + u8 pad[3]; + /* cmd word 1 */ + __le64 user_ctx; +}; + +#endif /* _FSL_DPCON_CMD_H */ --- /dev/null +++ b/drivers/staging/fsl-mc/bus/dpcon.c @@ -0,0 +1,317 @@ +/* Copyright 2013-2016 Freescale Semiconductor Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the above-listed copyright holders nor the + * names of any contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ +#include "../include/mc-sys.h" +#include "../include/mc-cmd.h" +#include "../include/dpcon.h" + +#include "dpcon-cmd.h" + +/** + * dpcon_open() - Open a control session for the specified object + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @dpcon_id: DPCON unique ID + * @token: Returned token; use in subsequent API calls + * + * This function can be used to open a control session for an + * already created object; an object may have been declared in + * the DPL or by calling the dpcon_create() function. + * This function returns a unique authentication token, + * associated with the specific object ID and the specific MC + * portal; this token must be used in all subsequent commands for + * this specific object. + * + * Return: '0' on Success; Error code otherwise. + */ +int dpcon_open(struct fsl_mc_io *mc_io, + u32 cmd_flags, + int dpcon_id, + u16 *token) +{ + struct mc_command cmd = { 0 }; + struct dpcon_cmd_open *dpcon_cmd; + int err; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPCON_CMDID_OPEN, + cmd_flags, + 0); + dpcon_cmd = (struct dpcon_cmd_open *)cmd.params; + dpcon_cmd->dpcon_id = cpu_to_le32(dpcon_id); + + /* send command to mc*/ + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + /* retrieve response parameters */ + *token = mc_cmd_hdr_read_token(&cmd); + + return 0; +} +EXPORT_SYMBOL(dpcon_open); + +/** + * dpcon_close() - Close the control session of the object + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPCON object + * + * After this function is called, no further operations are + * allowed on the object without opening a new control session. + * + * Return: '0' on Success; Error code otherwise. + */ +int dpcon_close(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token) +{ + struct mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPCON_CMDID_CLOSE, + cmd_flags, + token); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} +EXPORT_SYMBOL(dpcon_close); + +/** + * dpcon_enable() - Enable the DPCON + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPCON object + * + * Return: '0' on Success; Error code otherwise + */ +int dpcon_enable(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token) +{ + struct mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPCON_CMDID_ENABLE, + cmd_flags, + token); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} +EXPORT_SYMBOL(dpcon_enable); + +/** + * dpcon_disable() - Disable the DPCON + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPCON object + * + * Return: '0' on Success; Error code otherwise + */ +int dpcon_disable(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token) +{ + struct mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPCON_CMDID_DISABLE, + cmd_flags, + token); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} +EXPORT_SYMBOL(dpcon_disable); + +/** + * dpcon_is_enabled() - Check if the DPCON is enabled. + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPCON object + * @en: Returns '1' if object is enabled; '0' otherwise + * + * Return: '0' on Success; Error code otherwise. + */ +int dpcon_is_enabled(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + int *en) +{ + struct mc_command cmd = { 0 }; + struct dpcon_rsp_is_enabled *dpcon_rsp; + int err; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPCON_CMDID_IS_ENABLED, + cmd_flags, + token); + + /* send command to mc*/ + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + /* retrieve response parameters */ + dpcon_rsp = (struct dpcon_rsp_is_enabled *)cmd.params; + *en = dpcon_rsp->enabled & DPCON_ENABLE; + + return 0; +} +EXPORT_SYMBOL(dpcon_is_enabled); + +/** + * dpcon_reset() - Reset the DPCON, returns the object to initial state. + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPCON object + * + * Return: '0' on Success; Error code otherwise. + */ +int dpcon_reset(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token) +{ + struct mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPCON_CMDID_RESET, + cmd_flags, token); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} +EXPORT_SYMBOL(dpcon_reset); + +/** + * dpcon_get_attributes() - Retrieve DPCON attributes. + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPCON object + * @attr: Object's attributes + * + * Return: '0' on Success; Error code otherwise. + */ +int dpcon_get_attributes(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + struct dpcon_attr *attr) +{ + struct mc_command cmd = { 0 }; + struct dpcon_rsp_get_attr *dpcon_rsp; + int err; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPCON_CMDID_GET_ATTR, + cmd_flags, + token); + + /* send command to mc*/ + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + /* retrieve response parameters */ + dpcon_rsp = (struct dpcon_rsp_get_attr *)cmd.params; + attr->id = le32_to_cpu(dpcon_rsp->id); + attr->qbman_ch_id = le16_to_cpu(dpcon_rsp->qbman_ch_id); + attr->num_priorities = dpcon_rsp->num_priorities; + + return 0; +} +EXPORT_SYMBOL(dpcon_get_attributes); + +/** + * dpcon_set_notification() - Set DPCON notification destination + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPCON object + * @cfg: Notification parameters + * + * Return: '0' on Success; Error code otherwise + */ +int dpcon_set_notification(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + struct dpcon_notification_cfg *cfg) +{ + struct mc_command cmd = { 0 }; + struct dpcon_cmd_set_notification *dpcon_cmd; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPCON_CMDID_SET_NOTIFICATION, + cmd_flags, + token); + dpcon_cmd = (struct dpcon_cmd_set_notification *)cmd.params; + dpcon_cmd->dpio_id = cpu_to_le32(cfg->dpio_id); + dpcon_cmd->priority = cfg->priority; + dpcon_cmd->user_ctx = cpu_to_le64(cfg->user_ctx); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} +EXPORT_SYMBOL(dpcon_set_notification); + +/** + * dpcon_get_api_version - Get Data Path Concentrator API version + * @mc_io: Pointer to MC portal's DPCON object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @major_ver: Major version of DPCON API + * @minor_ver: Minor version of DPCON API + * + * Return: '0' on Success; Error code otherwise + */ +int dpcon_get_api_version(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 *major_ver, + u16 *minor_ver) +{ + struct mc_command cmd = { 0 }; + int err; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPCON_CMDID_GET_API_VERSION, + cmd_flags, 0); + + /* send command to mc */ + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + /* retrieve response parameters */ + mc_cmd_read_api_version(&cmd, major_ver, minor_ver); + + return 0; +} +EXPORT_SYMBOL(dpcon_get_api_version); --- /dev/null +++ b/drivers/staging/fsl-mc/bus/dpio/Makefile @@ -0,0 +1,11 @@ +# +# QorIQ DPAA2 DPIO driver +# + +subdir-ccflags-y := -Werror + +obj-$(CONFIG_FSL_MC_DPIO) += fsl-mc-dpio.o + +fsl-mc-dpio-objs := dpio.o qbman-portal.o dpio-service.o dpio-driver.o + +obj-$(CONFIG_FSL_QBMAN_DEBUG) += qbman_debug.o --- a/drivers/staging/fsl-mc/include/dpcon-cmd.h +++ /dev/null @@ -1,62 +0,0 @@ -/* Copyright 2013-2015 Freescale Semiconductor Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of the above-listed copyright holders nor the - * names of any contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") as published by the Free Software - * Foundation, either version 2 of that License or (at your option) any - * later version. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ -#ifndef _FSL_DPCON_CMD_H -#define _FSL_DPCON_CMD_H - -/* DPCON Version */ -#define DPCON_VER_MAJOR 2 -#define DPCON_VER_MINOR 1 - -/* Command IDs */ -#define DPCON_CMDID_CLOSE 0x800 -#define DPCON_CMDID_OPEN 0x808 -#define DPCON_CMDID_CREATE 0x908 -#define DPCON_CMDID_DESTROY 0x900 - -#define DPCON_CMDID_ENABLE 0x002 -#define DPCON_CMDID_DISABLE 0x003 -#define DPCON_CMDID_GET_ATTR 0x004 -#define DPCON_CMDID_RESET 0x005 -#define DPCON_CMDID_IS_ENABLED 0x006 - -#define DPCON_CMDID_SET_IRQ 0x010 -#define DPCON_CMDID_GET_IRQ 0x011 -#define DPCON_CMDID_SET_IRQ_ENABLE 0x012 -#define DPCON_CMDID_GET_IRQ_ENABLE 0x013 -#define DPCON_CMDID_SET_IRQ_MASK 0x014 -#define DPCON_CMDID_GET_IRQ_MASK 0x015 -#define DPCON_CMDID_GET_IRQ_STATUS 0x016 -#define DPCON_CMDID_CLEAR_IRQ_STATUS 0x017 - -#define DPCON_CMDID_SET_NOTIFICATION 0x100 - -#endif /* _FSL_DPCON_CMD_H */ --- /dev/null +++ b/drivers/staging/fsl-mc/bus/dpio/dpio-cmd.h @@ -0,0 +1,75 @@ +/* + * Copyright 2013-2016 Freescale Semiconductor Inc. + * Copyright 2016 NXP + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the above-listed copyright holders nor the + * names of any contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef _FSL_DPIO_CMD_H +#define _FSL_DPIO_CMD_H + +/* DPIO Version */ +#define DPIO_VER_MAJOR 4 +#define DPIO_VER_MINOR 2 + +/* Command Versioning */ + +#define DPIO_CMD_ID_OFFSET 4 +#define DPIO_CMD_BASE_VERSION 1 + +#define DPIO_CMD(id) (((id) << DPIO_CMD_ID_OFFSET) | DPIO_CMD_BASE_VERSION) + +/* Command IDs */ +#define DPIO_CMDID_CLOSE DPIO_CMD(0x800) +#define DPIO_CMDID_OPEN DPIO_CMD(0x803) +#define DPIO_CMDID_GET_API_VERSION DPIO_CMD(0xa03) +#define DPIO_CMDID_ENABLE DPIO_CMD(0x002) +#define DPIO_CMDID_DISABLE DPIO_CMD(0x003) +#define DPIO_CMDID_GET_ATTR DPIO_CMD(0x004) + +struct dpio_cmd_open { + __le32 dpio_id; +}; + +#define DPIO_CHANNEL_MODE_MASK 0x3 + +struct dpio_rsp_get_attr { + /* cmd word 0 */ + __le32 id; + __le16 qbman_portal_id; + u8 num_priorities; + u8 channel_mode; + /* cmd word 1 */ + __le64 qbman_portal_ce_addr; + /* cmd word 2 */ + __le64 qbman_portal_ci_addr; + /* cmd word 3 */ + __le32 qbman_version; +}; + +#endif /* _FSL_DPIO_CMD_H */ --- /dev/null +++ b/drivers/staging/fsl-mc/bus/dpio/dpio-driver.c @@ -0,0 +1,296 @@ +/* + * Copyright 2014-2016 Freescale Semiconductor Inc. + * Copyright 2016 NXP + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Freescale Semiconductor nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "../../include/mc.h" +#include "../../include/dpaa2-io.h" + +#include "qbman-portal.h" +#include "dpio.h" +#include "dpio-cmd.h" + +MODULE_LICENSE("Dual BSD/GPL"); +MODULE_AUTHOR("Freescale Semiconductor, Inc"); +MODULE_DESCRIPTION("DPIO Driver"); + +struct dpio_priv { + struct dpaa2_io *io; +}; + +static irqreturn_t dpio_irq_handler(int irq_num, void *arg) +{ + struct device *dev = (struct device *)arg; + struct dpio_priv *priv = dev_get_drvdata(dev); + + return dpaa2_io_irq(priv->io); +} + +static void unregister_dpio_irq_handlers(struct fsl_mc_device *dpio_dev) +{ + struct fsl_mc_device_irq *irq; + + irq = dpio_dev->irqs[0]; + + /* clear the affinity hint */ + irq_set_affinity_hint(irq->msi_desc->irq, NULL); +} + +static int register_dpio_irq_handlers(struct fsl_mc_device *dpio_dev, int cpu) +{ + struct dpio_priv *priv; + int error; + struct fsl_mc_device_irq *irq; + cpumask_t mask; + + priv = dev_get_drvdata(&dpio_dev->dev); + + irq = dpio_dev->irqs[0]; + error = devm_request_irq(&dpio_dev->dev, + irq->msi_desc->irq, + dpio_irq_handler, + 0, + dev_name(&dpio_dev->dev), + &dpio_dev->dev); + if (error < 0) { + dev_err(&dpio_dev->dev, + "devm_request_irq() failed: %d\n", + error); + return error; + } + + /* set the affinity hint */ + cpumask_clear(&mask); + cpumask_set_cpu(cpu, &mask); + if (irq_set_affinity_hint(irq->msi_desc->irq, &mask)) + dev_err(&dpio_dev->dev, + "irq_set_affinity failed irq %d cpu %d\n", + irq->msi_desc->irq, cpu); + + return 0; +} + +static int dpaa2_dpio_probe(struct fsl_mc_device *dpio_dev) +{ + struct dpio_attr dpio_attrs; + struct dpaa2_io_desc desc; + struct dpio_priv *priv; + int err = -ENOMEM; + struct device *dev = &dpio_dev->dev; + static int next_cpu = -1; + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + goto err_priv_alloc; + + dev_set_drvdata(dev, priv); + + err = fsl_mc_portal_allocate(dpio_dev, 0, &dpio_dev->mc_io); + if (err) { + dev_dbg(dev, "MC portal allocation failed\n"); + err = -EPROBE_DEFER; + goto err_mcportal; + } + + err = dpio_open(dpio_dev->mc_io, 0, dpio_dev->obj_desc.id, + &dpio_dev->mc_handle); + if (err) { + dev_err(dev, "dpio_open() failed\n"); + goto err_open; + } + + err = dpio_get_attributes(dpio_dev->mc_io, 0, dpio_dev->mc_handle, + &dpio_attrs); + if (err) { + dev_err(dev, "dpio_get_attributes() failed %d\n", err); + goto err_get_attr; + } + desc.qman_version = dpio_attrs.qbman_version; + + err = dpio_enable(dpio_dev->mc_io, 0, dpio_dev->mc_handle); + if (err) { + dev_err(dev, "dpio_enable() failed %d\n", err); + goto err_get_attr; + } + + /* initialize DPIO descriptor */ + desc.receives_notifications = dpio_attrs.num_priorities ? 1 : 0; + desc.has_8prio = dpio_attrs.num_priorities == 8 ? 1 : 0; + desc.dpio_id = dpio_dev->obj_desc.id; + + /* get the cpu to use for the affinity hint */ + if (next_cpu == -1) + next_cpu = cpumask_first(cpu_online_mask); + else + next_cpu = cpumask_next(next_cpu, cpu_online_mask); + + if (!cpu_possible(next_cpu)) { + dev_err(dev, "probe failed. Number of DPIOs exceeds NR_CPUS.\n"); + err = -ERANGE; + goto err_allocate_irqs; + } + desc.cpu = next_cpu; + + /* + * Set the CENA regs to be the cache enabled area of the portal to + * achieve the best performance. + */ + desc.regs_cena = ioremap_cache_ns(dpio_dev->regions[0].start, + resource_size(&dpio_dev->regions[0])); + desc.regs_cinh = ioremap(dpio_dev->regions[1].start, + resource_size(&dpio_dev->regions[1])); + + err = fsl_mc_allocate_irqs(dpio_dev); + if (err) { + dev_err(dev, "fsl_mc_allocate_irqs failed. err=%d\n", err); + goto err_allocate_irqs; + } + + err = register_dpio_irq_handlers(dpio_dev, desc.cpu); + if (err) + goto err_register_dpio_irq; + + priv->io = dpaa2_io_create(&desc); + if (!priv->io) { + dev_err(dev, "dpaa2_io_create failed\n"); + goto err_dpaa2_io_create; + } + + dev_info(dev, "probed\n"); + dev_dbg(dev, " receives_notifications = %d\n", + desc.receives_notifications); + dpio_close(dpio_dev->mc_io, 0, dpio_dev->mc_handle); + fsl_mc_portal_free(dpio_dev->mc_io); + + return 0; + +err_dpaa2_io_create: + unregister_dpio_irq_handlers(dpio_dev); +err_register_dpio_irq: + fsl_mc_free_irqs(dpio_dev); +err_allocate_irqs: + dpio_disable(dpio_dev->mc_io, 0, dpio_dev->mc_handle); +err_get_attr: + dpio_close(dpio_dev->mc_io, 0, dpio_dev->mc_handle); +err_open: + fsl_mc_portal_free(dpio_dev->mc_io); +err_mcportal: + dev_set_drvdata(dev, NULL); +err_priv_alloc: + return err; +} + +/* Tear down interrupts for a given DPIO object */ +static void dpio_teardown_irqs(struct fsl_mc_device *dpio_dev) +{ + unregister_dpio_irq_handlers(dpio_dev); + fsl_mc_free_irqs(dpio_dev); +} + +static int dpaa2_dpio_remove(struct fsl_mc_device *dpio_dev) +{ + struct device *dev; + struct dpio_priv *priv; + int err; + + dev = &dpio_dev->dev; + priv = dev_get_drvdata(dev); + + dpaa2_io_down(priv->io); + + dpio_teardown_irqs(dpio_dev); + + err = fsl_mc_portal_allocate(dpio_dev, 0, &dpio_dev->mc_io); + if (err) { + dev_err(dev, "MC portal allocation failed\n"); + goto err_mcportal; + } + + err = dpio_open(dpio_dev->mc_io, 0, dpio_dev->obj_desc.id, + &dpio_dev->mc_handle); + if (err) { + dev_err(dev, "dpio_open() failed\n"); + goto err_open; + } + + dpio_disable(dpio_dev->mc_io, 0, dpio_dev->mc_handle); + + dpio_close(dpio_dev->mc_io, 0, dpio_dev->mc_handle); + + fsl_mc_portal_free(dpio_dev->mc_io); + + dev_set_drvdata(dev, NULL); + + return 0; + +err_open: + fsl_mc_portal_free(dpio_dev->mc_io); +err_mcportal: + return err; +} + +static const struct fsl_mc_device_id dpaa2_dpio_match_id_table[] = { + { + .vendor = FSL_MC_VENDOR_FREESCALE, + .obj_type = "dpio", + }, + { .vendor = 0x0 } +}; + +static struct fsl_mc_driver dpaa2_dpio_driver = { + .driver = { + .name = KBUILD_MODNAME, + .owner = THIS_MODULE, + }, + .probe = dpaa2_dpio_probe, + .remove = dpaa2_dpio_remove, + .match_id_table = dpaa2_dpio_match_id_table +}; + +static int dpio_driver_init(void) +{ + return fsl_mc_driver_register(&dpaa2_dpio_driver); +} + +static void dpio_driver_exit(void) +{ + fsl_mc_driver_unregister(&dpaa2_dpio_driver); +} +module_init(dpio_driver_init); +module_exit(dpio_driver_exit); --- /dev/null +++ b/drivers/staging/fsl-mc/bus/dpio/dpio-driver.txt @@ -0,0 +1,135 @@ +Copyright 2016 NXP + +Introduction +------------ + +A DPAA2 DPIO (Data Path I/O) is a hardware object that provides +interfaces to enqueue and dequeue frames to/from network interfaces +and other accelerators. A DPIO also provides hardware buffer +pool management for network interfaces. + +This document provides an overview the Linux DPIO driver, its +subcomponents, and its APIs. + +See Documentation/dpaa2/overview.txt for a general overview of DPAA2 +and the general DPAA2 driver architecture in Linux. + +Driver Overview +--------------- + +The DPIO driver is bound to DPIO objects discovered on the fsl-mc bus and +provides services that: + A) allow other drivers, such as the Ethernet driver, to enqueue and dequeue + frames for their respective objects + B) allow drivers to register callbacks for data availability notifications + when data becomes available on a queue or channel + C) allow drivers to manage hardware buffer pools + +The Linux DPIO driver consists of 3 primary components-- + DPIO object driver-- fsl-mc driver that manages the DPIO object + DPIO service-- provides APIs to other Linux drivers for services + QBman portal interface-- sends portal commands, gets responses + + fsl-mc other + bus drivers + | | + +---+----+ +------+-----+ + |DPIO obj| |DPIO service| + | driver |---| (DPIO) | + +--------+ +------+-----+ + | + +------+-----+ + | QBman | + | portal i/f | + +------------+ + | + hardware + +The diagram below shows how the DPIO driver components fit with the other +DPAA2 Linux driver components: + +------------+ + | OS Network | + | Stack | + +------------+ +------------+ + | Allocator |. . . . . . . | Ethernet | + |(DPMCP,DPBP)| | (DPNI) | + +-.----------+ +---+---+----+ + . . ^ | + . . | | dequeue> + +-------------+ . | | + | DPRC driver | . +--------+ +------------+ + | (DPRC) | . . |DPIO obj| |DPIO service| + +----------+--+ | driver |-| (DPIO) | + | +--------+ +------+-----+ + | +------|-----+ + | | QBman | + +----+--------------+ | portal i/f | + | MC-bus driver | +------------+ + | | | + | /soc/fsl-mc | | + +-------------------+ | + | + =========================================|=========|======================== + +-+--DPIO---|-----------+ + | | | + | QBman Portal | + +-----------------------+ + + ============================================================================ + + +DPIO Object Driver (dpio-driver.c) +---------------------------------- + + The dpio-driver component registers with the fsl-mc bus to handle objects of + type "dpio". The implementation of probe() handles basic initialization + of the DPIO including mapping of the DPIO regions (the QBman SW portal) + and initializing interrupts and registering irq handlers. The dpio-driver + registers the probed DPIO with dpio-service. + +DPIO service (dpio-service.c, dpaa2-io.h) +------------------------------------------ + + The dpio service component provides queuing, notification, and buffers + management services to DPAA2 drivers, such as the Ethernet driver. A system + will typically allocate 1 DPIO object per CPU to allow queuing operations + to happen simultaneously across all CPUs. + + Notification handling + dpaa2_io_service_register() + dpaa2_io_service_deregister() + dpaa2_io_service_rearm() + + Queuing + dpaa2_io_service_pull_fq() + dpaa2_io_service_pull_channel() + dpaa2_io_service_enqueue_fq() + dpaa2_io_service_enqueue_qd() + dpaa2_io_store_create() + dpaa2_io_store_destroy() + dpaa2_io_store_next() + + Buffer pool management + dpaa2_io_service_release() + dpaa2_io_service_acquire() + +QBman portal interface (qbman-portal.c) +--------------------------------------- + + The qbman-portal component provides APIs to do the low level hardware + bit twiddling for operations such as: + -initializing Qman software portals + -building and sending portal commands + -portal interrupt configuration and processing + + The qbman-portal APIs are not public to other drivers, and are + only used by dpio-service. + +Other (dpaa2-fd.h, dpaa2-global.h) +---------------------------------- + + Frame descriptor and scatter-gather definitions and the APIs used to + manipulate them are defined in dpaa2-fd.h. + + Dequeue result struct and parsing APIs are defined in dpaa2-global.h. --- /dev/null +++ b/drivers/staging/fsl-mc/bus/dpio/dpio-service.c @@ -0,0 +1,689 @@ +/* + * Copyright 2014-2016 Freescale Semiconductor Inc. + * Copyright 2016 NXP + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Freescale Semiconductor nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#include +#include "../../include/mc.h" +#include "../../include/dpaa2-io.h" +#include +#include +#include +#include +#include +#include + +#include "dpio.h" +#include "qbman-portal.h" +#include "qbman_debug.h" + +struct dpaa2_io { + atomic_t refs; + struct dpaa2_io_desc dpio_desc; + struct qbman_swp_desc swp_desc; + struct qbman_swp *swp; + struct list_head node; + /* protect against multiple management commands */ + spinlock_t lock_mgmt_cmd; + /* protect notifications list */ + spinlock_t lock_notifications; + struct list_head notifications; +}; + +struct dpaa2_io_store { + unsigned int max; + dma_addr_t paddr; + struct dpaa2_dq *vaddr; + void *alloced_addr; /* unaligned value from kmalloc() */ + unsigned int idx; /* position of the next-to-be-returned entry */ + struct qbman_swp *swp; /* portal used to issue VDQCR */ + struct device *dev; /* device used for DMA mapping */ +}; + +/* keep a per cpu array of DPIOs for fast access */ +static struct dpaa2_io *dpio_by_cpu[NR_CPUS]; +static struct list_head dpio_list = LIST_HEAD_INIT(dpio_list); +static DEFINE_SPINLOCK(dpio_list_lock); + +static inline struct dpaa2_io *service_select_by_cpu(struct dpaa2_io *d, + int cpu) +{ + if (d) + return d; + + if (unlikely(cpu >= num_possible_cpus())) + return NULL; + + /* + * If cpu == -1, choose the current cpu, with no guarantees about + * potentially being migrated away. + */ + if (unlikely(cpu < 0)) + cpu = smp_processor_id(); + + /* If a specific cpu was requested, pick it up immediately */ + return dpio_by_cpu[cpu]; +} + +static inline struct dpaa2_io *service_select(struct dpaa2_io *d) +{ + if (d) + return d; + + spin_lock(&dpio_list_lock); + d = list_entry(dpio_list.next, struct dpaa2_io, node); + list_del(&d->node); + list_add_tail(&d->node, &dpio_list); + spin_unlock(&dpio_list_lock); + + return d; +} + +/** + * dpaa2_io_create() - create a dpaa2_io object. + * @desc: the dpaa2_io descriptor + * + * Activates a "struct dpaa2_io" corresponding to the given config of an actual + * DPIO object. + * + * Return a valid dpaa2_io object for success, or NULL for failure. + */ +struct dpaa2_io *dpaa2_io_create(const struct dpaa2_io_desc *desc) +{ + struct dpaa2_io *obj = kmalloc(sizeof(*obj), GFP_KERNEL); + + if (!obj) + return NULL; + + /* check if CPU is out of range (-1 means any cpu) */ + if (desc->cpu >= num_possible_cpus()) { + kfree(obj); + return NULL; + } + + atomic_set(&obj->refs, 1); + obj->dpio_desc = *desc; + obj->swp_desc.cena_bar = obj->dpio_desc.regs_cena; + obj->swp_desc.cinh_bar = obj->dpio_desc.regs_cinh; + obj->swp_desc.qman_version = obj->dpio_desc.qman_version; + obj->swp = qbman_swp_init(&obj->swp_desc); + + if (!obj->swp) { + kfree(obj); + return NULL; + } + + INIT_LIST_HEAD(&obj->node); + spin_lock_init(&obj->lock_mgmt_cmd); + spin_lock_init(&obj->lock_notifications); + INIT_LIST_HEAD(&obj->notifications); + + /* For now only enable DQRR interrupts */ + qbman_swp_interrupt_set_trigger(obj->swp, + QBMAN_SWP_INTERRUPT_DQRI); + qbman_swp_interrupt_clear_status(obj->swp, 0xffffffff); + if (obj->dpio_desc.receives_notifications) + qbman_swp_push_set(obj->swp, 0, 1); + + spin_lock(&dpio_list_lock); + list_add_tail(&obj->node, &dpio_list); + if (desc->cpu >= 0 && !dpio_by_cpu[desc->cpu]) + dpio_by_cpu[desc->cpu] = obj; + spin_unlock(&dpio_list_lock); + + return obj; +} +EXPORT_SYMBOL(dpaa2_io_create); + +/** + * dpaa2_io_down() - release the dpaa2_io object. + * @d: the dpaa2_io object to be released. + * + * The "struct dpaa2_io" type can represent an individual DPIO object (as + * described by "struct dpaa2_io_desc") or an instance of a "DPIO service", + * which can be used to group/encapsulate multiple DPIO objects. In all cases, + * each handle obtained should be released using this function. + */ +void dpaa2_io_down(struct dpaa2_io *d) +{ + if (!atomic_dec_and_test(&d->refs)) + return; + kfree(d); +} +EXPORT_SYMBOL(dpaa2_io_down); + +#define DPAA_POLL_MAX 32 + +/** + * dpaa2_io_irq() - ISR for DPIO interrupts + * + * @obj: the given DPIO object. + * + * Return IRQ_HANDLED for success or IRQ_NONE if there + * were no pending interrupts. + */ +irqreturn_t dpaa2_io_irq(struct dpaa2_io *obj) +{ + const struct dpaa2_dq *dq; + int max = 0; + struct qbman_swp *swp; + u32 status; + + swp = obj->swp; + status = qbman_swp_interrupt_read_status(swp); + if (!status) + return IRQ_NONE; + + dq = qbman_swp_dqrr_next(swp); + while (dq) { + if (qbman_result_is_SCN(dq)) { + struct dpaa2_io_notification_ctx *ctx; + u64 q64; + + q64 = qbman_result_SCN_ctx(dq); + ctx = (void *)q64; + ctx->cb(ctx); + } else { + pr_crit("fsl-mc-dpio: Unrecognised/ignored DQRR entry\n"); + } + qbman_swp_dqrr_consume(swp, dq); + ++max; + if (max > DPAA_POLL_MAX) + goto done; + dq = qbman_swp_dqrr_next(swp); + } +done: + qbman_swp_interrupt_clear_status(swp, status); + qbman_swp_interrupt_set_inhibit(swp, 0); + return IRQ_HANDLED; +} +EXPORT_SYMBOL(dpaa2_io_irq); + +/** + * dpaa2_io_service_register() - Prepare for servicing of FQDAN or CDAN + * notifications on the given DPIO service. + * @d: the given DPIO service. + * @ctx: the notification context. + * + * The caller should make the MC command to attach a DPAA2 object to + * a DPIO after this function completes successfully. In that way: + * (a) The DPIO service is "ready" to handle a notification arrival + * (which might happen before the "attach" command to MC has + * returned control of execution back to the caller) + * (b) The DPIO service can provide back to the caller the 'dpio_id' and + * 'qman64' parameters that it should pass along in the MC command + * in order for the object to be configured to produce the right + * notification fields to the DPIO service. + * + * Return 0 for success, or -ENODEV for failure. + */ +int dpaa2_io_service_register(struct dpaa2_io *d, + struct dpaa2_io_notification_ctx *ctx) +{ + unsigned long irqflags; + + d = service_select_by_cpu(d, ctx->desired_cpu); + if (!d) + return -ENODEV; + + ctx->dpio_id = d->dpio_desc.dpio_id; + ctx->qman64 = (u64)ctx; + ctx->dpio_private = d; + spin_lock_irqsave(&d->lock_notifications, irqflags); + list_add(&ctx->node, &d->notifications); + spin_unlock_irqrestore(&d->lock_notifications, irqflags); + + /* Enable the generation of CDAN notifications */ + if (ctx->is_cdan) + qbman_swp_CDAN_set_context_enable(d->swp, + (u16)ctx->id, + ctx->qman64); + return 0; +} +EXPORT_SYMBOL(dpaa2_io_service_register); + +/** + * dpaa2_io_service_deregister - The opposite of 'register'. + * @service: the given DPIO service. + * @ctx: the notification context. + * + * This function should be called only after sending the MC command to + * to detach the notification-producing device from the DPIO. + */ +void dpaa2_io_service_deregister(struct dpaa2_io *service, + struct dpaa2_io_notification_ctx *ctx) +{ + struct dpaa2_io *d = ctx->dpio_private; + unsigned long irqflags; + + if (ctx->is_cdan) + qbman_swp_CDAN_disable(d->swp, (u16)ctx->id); + + spin_lock_irqsave(&d->lock_notifications, irqflags); + list_del(&ctx->node); + spin_unlock_irqrestore(&d->lock_notifications, irqflags); +} +EXPORT_SYMBOL(dpaa2_io_service_deregister); + +/** + * dpaa2_io_service_rearm() - Rearm the notification for the given DPIO service. + * @d: the given DPIO service. + * @ctx: the notification context. + * + * Once a FQDAN/CDAN has been produced, the corresponding FQ/channel is + * considered "disarmed". Ie. the user can issue pull dequeue operations on that + * traffic source for as long as it likes. Eventually it may wish to "rearm" + * that source to allow it to produce another FQDAN/CDAN, that's what this + * function achieves. + * + * Return 0 for success. + */ +int dpaa2_io_service_rearm(struct dpaa2_io *d, + struct dpaa2_io_notification_ctx *ctx) +{ + unsigned long irqflags; + int err; + + d = service_select_by_cpu(d, ctx->desired_cpu); + if (!unlikely(d)) + return -ENODEV; + + spin_lock_irqsave(&d->lock_mgmt_cmd, irqflags); + if (ctx->is_cdan) + err = qbman_swp_CDAN_enable(d->swp, (u16)ctx->id); + else + err = qbman_swp_fq_schedule(d->swp, ctx->id); + spin_unlock_irqrestore(&d->lock_mgmt_cmd, irqflags); + + return err; +} +EXPORT_SYMBOL(dpaa2_io_service_rearm); + +/** + * dpaa2_io_service_pull_fq() - pull dequeue functions from a fq. + * @d: the given DPIO service. + * @fqid: the given frame queue id. + * @s: the dpaa2_io_store object for the result. + * + * Return 0 for success, or error code for failure. + */ +int dpaa2_io_service_pull_fq(struct dpaa2_io *d, u32 fqid, + struct dpaa2_io_store *s) +{ + struct qbman_pull_desc pd; + int err; + + qbman_pull_desc_clear(&pd); + qbman_pull_desc_set_storage(&pd, s->vaddr, s->paddr, 1); + qbman_pull_desc_set_numframes(&pd, (u8)s->max); + qbman_pull_desc_set_fq(&pd, fqid); + + d = service_select(d); + if (!d) + return -ENODEV; + s->swp = d->swp; + err = qbman_swp_pull(d->swp, &pd); + if (err) + s->swp = NULL; + + return err; +} +EXPORT_SYMBOL(dpaa2_io_service_pull_fq); + +/** + * dpaa2_io_service_pull_channel() - pull dequeue functions from a channel. + * @d: the given DPIO service. + * @channelid: the given channel id. + * @s: the dpaa2_io_store object for the result. + * + * Return 0 for success, or error code for failure. + */ +int dpaa2_io_service_pull_channel(struct dpaa2_io *d, u32 channelid, + struct dpaa2_io_store *s) +{ + struct qbman_pull_desc pd; + int err; + + qbman_pull_desc_clear(&pd); + qbman_pull_desc_set_storage(&pd, s->vaddr, s->paddr, 1); + qbman_pull_desc_set_numframes(&pd, (u8)s->max); + qbman_pull_desc_set_channel(&pd, channelid, qbman_pull_type_prio); + + d = service_select(d); + if (!d) + return -ENODEV; + + s->swp = d->swp; + err = qbman_swp_pull(d->swp, &pd); + if (err) + s->swp = NULL; + + return err; +} +EXPORT_SYMBOL(dpaa2_io_service_pull_channel); + +/** + * dpaa2_io_service_enqueue_fq() - Enqueue a frame to a frame queue. + * @d: the given DPIO service. + * @fqid: the given frame queue id. + * @fd: the frame descriptor which is enqueued. + * + * Return 0 for successful enqueue, -EBUSY if the enqueue ring is not ready, + * or -ENODEV if there is no dpio service. + */ +int dpaa2_io_service_enqueue_fq(struct dpaa2_io *d, + u32 fqid, + const struct dpaa2_fd *fd) +{ + struct qbman_eq_desc ed; + + d = service_select(d); + if (!d) + return -ENODEV; + + qbman_eq_desc_clear(&ed); + qbman_eq_desc_set_no_orp(&ed, 0); + qbman_eq_desc_set_fq(&ed, fqid); + + return qbman_swp_enqueue(d->swp, &ed, fd); +} +EXPORT_SYMBOL(dpaa2_io_service_enqueue_fq); + +/** + * dpaa2_io_service_enqueue_qd() - Enqueue a frame to a QD. + * @d: the given DPIO service. + * @qdid: the given queuing destination id. + * @prio: the given queuing priority. + * @qdbin: the given queuing destination bin. + * @fd: the frame descriptor which is enqueued. + * + * Return 0 for successful enqueue, or -EBUSY if the enqueue ring is not ready, + * or -ENODEV if there is no dpio service. + */ +int dpaa2_io_service_enqueue_qd(struct dpaa2_io *d, + u32 qdid, u8 prio, u16 qdbin, + const struct dpaa2_fd *fd) +{ + struct qbman_eq_desc ed; + + d = service_select(d); + if (!d) + return -ENODEV; + + qbman_eq_desc_clear(&ed); + qbman_eq_desc_set_no_orp(&ed, 0); + qbman_eq_desc_set_qd(&ed, qdid, qdbin, prio); + + return qbman_swp_enqueue(d->swp, &ed, fd); +} +EXPORT_SYMBOL(dpaa2_io_service_enqueue_qd); + +/** + * dpaa2_io_service_release() - Release buffers to a buffer pool. + * @d: the given DPIO object. + * @bpid: the buffer pool id. + * @buffers: the buffers to be released. + * @num_buffers: the number of the buffers to be released. + * + * Return 0 for success, and negative error code for failure. + */ +int dpaa2_io_service_release(struct dpaa2_io *d, + u32 bpid, + const u64 *buffers, + unsigned int num_buffers) +{ + struct qbman_release_desc rd; + + d = service_select(d); + if (!d) + return -ENODEV; + + qbman_release_desc_clear(&rd); + qbman_release_desc_set_bpid(&rd, bpid); + + return qbman_swp_release(d->swp, &rd, buffers, num_buffers); +} +EXPORT_SYMBOL(dpaa2_io_service_release); + +/** + * dpaa2_io_service_acquire() - Acquire buffers from a buffer pool. + * @d: the given DPIO object. + * @bpid: the buffer pool id. + * @buffers: the buffer addresses for acquired buffers. + * @num_buffers: the expected number of the buffers to acquire. + * + * Return a negative error code if the command failed, otherwise it returns + * the number of buffers acquired, which may be less than the number requested. + * Eg. if the buffer pool is empty, this will return zero. + */ +int dpaa2_io_service_acquire(struct dpaa2_io *d, + u32 bpid, + u64 *buffers, + unsigned int num_buffers) +{ + unsigned long irqflags; + int err; + + d = service_select(d); + if (!d) + return -ENODEV; + + spin_lock_irqsave(&d->lock_mgmt_cmd, irqflags); + err = qbman_swp_acquire(d->swp, bpid, buffers, num_buffers); + spin_unlock_irqrestore(&d->lock_mgmt_cmd, irqflags); + + return err; +} +EXPORT_SYMBOL(dpaa2_io_service_acquire); + +/* + * 'Stores' are reusable memory blocks for holding dequeue results, and to + * assist with parsing those results. + */ + +/** + * dpaa2_io_store_create() - Create the dma memory storage for dequeue result. + * @max_frames: the maximum number of dequeued result for frames, must be <= 16. + * @dev: the device to allow mapping/unmapping the DMAable region. + * + * The size of the storage is "max_frames*sizeof(struct dpaa2_dq)". + * The 'dpaa2_io_store' returned is a DPIO service managed object. + * + * Return pointer to dpaa2_io_store struct for successfuly created storage + * memory, or NULL on error. + */ +struct dpaa2_io_store *dpaa2_io_store_create(unsigned int max_frames, + struct device *dev) +{ + struct dpaa2_io_store *ret; + size_t size; + + if (!max_frames || (max_frames > 16)) + return NULL; + + ret = kmalloc(sizeof(*ret), GFP_KERNEL); + if (!ret) + return NULL; + + ret->max = max_frames; + size = max_frames * sizeof(struct dpaa2_dq) + 64; + ret->alloced_addr = kzalloc(size, GFP_KERNEL); + if (!ret->alloced_addr) { + kfree(ret); + return NULL; + } + + ret->vaddr = PTR_ALIGN(ret->alloced_addr, 64); + ret->paddr = dma_map_single(dev, ret->vaddr, + sizeof(struct dpaa2_dq) * max_frames, + DMA_FROM_DEVICE); + if (dma_mapping_error(dev, ret->paddr)) { + kfree(ret->alloced_addr); + kfree(ret); + return NULL; + } + + ret->idx = 0; + ret->dev = dev; + + return ret; +} +EXPORT_SYMBOL(dpaa2_io_store_create); + +/** + * dpaa2_io_store_destroy() - Frees the dma memory storage for dequeue + * result. + * @s: the storage memory to be destroyed. + */ +void dpaa2_io_store_destroy(struct dpaa2_io_store *s) +{ + dma_unmap_single(s->dev, s->paddr, sizeof(struct dpaa2_dq) * s->max, + DMA_FROM_DEVICE); + kfree(s->alloced_addr); + kfree(s); +} +EXPORT_SYMBOL(dpaa2_io_store_destroy); + +/** + * dpaa2_io_store_next() - Determine when the next dequeue result is available. + * @s: the dpaa2_io_store object. + * @is_last: indicate whether this is the last frame in the pull command. + * + * When an object driver performs dequeues to a dpaa2_io_store, this function + * can be used to determine when the next frame result is available. Once + * this function returns non-NULL, a subsequent call to it will try to find + * the next dequeue result. + * + * Note that if a pull-dequeue has a NULL result because the target FQ/channel + * was empty, then this function will also return NULL (rather than expecting + * the caller to always check for this. As such, "is_last" can be used to + * differentiate between "end-of-empty-dequeue" and "still-waiting". + * + * Return dequeue result for a valid dequeue result, or NULL for empty dequeue. + */ +struct dpaa2_dq *dpaa2_io_store_next(struct dpaa2_io_store *s, int *is_last) +{ + int match; + struct dpaa2_dq *ret = &s->vaddr[s->idx]; + + match = qbman_result_has_new_result(s->swp, ret); + if (!match) { + *is_last = 0; + return NULL; + } + + s->idx++; + + if (dpaa2_dq_is_pull_complete(ret)) { + *is_last = 1; + s->idx = 0; + /* + * If we get an empty dequeue result to terminate a zero-results + * vdqcr, return NULL to the caller rather than expecting him to + * check non-NULL results every time. + */ + if (!(dpaa2_dq_flags(ret) & DPAA2_DQ_STAT_VALIDFRAME)) + ret = NULL; + } else { + *is_last = 0; + } + + return ret; +} +EXPORT_SYMBOL(dpaa2_io_store_next); + +#ifdef CONFIG_FSL_QBMAN_DEBUG +/** + * dpaa2_io_query_fq_count() - Get the frame and byte count for a given fq. + * @d: the given DPIO object. + * @fqid: the id of frame queue to be queried. + * @fcnt: the queried frame count. + * @bcnt: the queried byte count. + * + * Knowing the FQ count at run-time can be useful in debugging situations. + * The instantaneous frame- and byte-count are hereby returned. + * + * Return 0 for a successful query, and negative error code if query fails. + */ +int dpaa2_io_query_fq_count(struct dpaa2_io *d, uint32_t fqid, + u32 *fcnt, u32 *bcnt) +{ + struct qbman_attr state; + struct qbman_swp *swp; + unsigned long irqflags; + int ret; + + d = service_select(d); + if (!d) + return -ENODEV; + + swp = d->swp; + spin_lock_irqsave(&d->lock_mgmt_cmd, irqflags); + ret = qbman_fq_query_state(swp, fqid, &state); + spin_unlock_irqrestore(&d->lock_mgmt_cmd, irqflags); + if (ret) + return ret; + *fcnt = qbman_fq_state_frame_count(&state); + *bcnt = qbman_fq_state_byte_count(&state); + + return 0; +} +EXPORT_SYMBOL(dpaa2_io_query_fq_count); + +/** + * dpaa2_io_query_bp_count() - Query the number of buffers currenty in a + * buffer pool. + * @d: the given DPIO object. + * @bpid: the index of buffer pool to be queried. + * @num: the queried number of buffers in the buffer pool. + * + * Return 0 for a sucessful query, and negative error code if query fails. + */ +int dpaa2_io_query_bp_count(struct dpaa2_io *d, uint32_t bpid, u32 *num) +{ + struct qbman_attr state; + struct qbman_swp *swp; + unsigned long irqflags; + int ret; + + d = service_select(d); + if (!d) + return -ENODEV; + + swp = d->swp; + spin_lock_irqsave(&d->lock_mgmt_cmd, irqflags); + ret = qbman_bp_query(swp, bpid, &state); + spin_unlock_irqrestore(&d->lock_mgmt_cmd, irqflags); + if (ret) + return ret; + *num = qbman_bp_info_num_free_bufs(&state); + return 0; +} +EXPORT_SYMBOL(dpaa2_io_query_bp_count); +#endif --- /dev/null +++ b/drivers/staging/fsl-mc/bus/dpio/dpio.c @@ -0,0 +1,224 @@ +/* + * Copyright 2013-2016 Freescale Semiconductor Inc. + * Copyright 2016 NXP + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the above-listed copyright holders nor the + * names of any contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ +#include "../../include/mc-sys.h" +#include "../../include/mc-cmd.h" + +#include "dpio.h" +#include "dpio-cmd.h" + +/* + * Data Path I/O Portal API + * Contains initialization APIs and runtime control APIs for DPIO + */ + +/** + * dpio_open() - Open a control session for the specified object + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @dpio_id: DPIO unique ID + * @token: Returned token; use in subsequent API calls + * + * This function can be used to open a control session for an + * already created object; an object may have been declared in + * the DPL or by calling the dpio_create() function. + * This function returns a unique authentication token, + * associated with the specific object ID and the specific MC + * portal; this token must be used in all subsequent commands for + * this specific object. + * + * Return: '0' on Success; Error code otherwise. + */ +int dpio_open(struct fsl_mc_io *mc_io, + u32 cmd_flags, + int dpio_id, + u16 *token) +{ + struct mc_command cmd = { 0 }; + struct dpio_cmd_open *dpio_cmd; + int err; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPIO_CMDID_OPEN, + cmd_flags, + 0); + dpio_cmd = (struct dpio_cmd_open *)cmd.params; + dpio_cmd->dpio_id = cpu_to_le32(dpio_id); + + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + /* retrieve response parameters */ + *token = mc_cmd_hdr_read_token(&cmd); + + return 0; +} + +/** + * dpio_close() - Close the control session of the object + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPIO object + * + * Return: '0' on Success; Error code otherwise. + */ +int dpio_close(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token) +{ + struct mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPIO_CMDID_CLOSE, + cmd_flags, + token); + + return mc_send_command(mc_io, &cmd); +} + +/** + * dpio_enable() - Enable the DPIO, allow I/O portal operations. + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPIO object + * + * Return: '0' on Success; Error code otherwise + */ +int dpio_enable(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token) +{ + struct mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPIO_CMDID_ENABLE, + cmd_flags, + token); + + return mc_send_command(mc_io, &cmd); +} + +/** + * dpio_disable() - Disable the DPIO, stop any I/O portal operation. + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPIO object + * + * Return: '0' on Success; Error code otherwise + */ +int dpio_disable(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token) +{ + struct mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPIO_CMDID_DISABLE, + cmd_flags, + token); + + return mc_send_command(mc_io, &cmd); +} + +/** + * dpio_get_attributes() - Retrieve DPIO attributes + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPIO object + * @attr: Returned object's attributes + * + * Return: '0' on Success; Error code otherwise + */ +int dpio_get_attributes(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + struct dpio_attr *attr) +{ + struct mc_command cmd = { 0 }; + struct dpio_rsp_get_attr *dpio_rsp; + int err; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPIO_CMDID_GET_ATTR, + cmd_flags, + token); + + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + /* retrieve response parameters */ + dpio_rsp = (struct dpio_rsp_get_attr *)cmd.params; + attr->id = le32_to_cpu(dpio_rsp->id); + attr->qbman_portal_id = le16_to_cpu(dpio_rsp->qbman_portal_id); + attr->num_priorities = dpio_rsp->num_priorities; + attr->channel_mode = dpio_rsp->channel_mode & DPIO_CHANNEL_MODE_MASK; + attr->qbman_portal_ce_offset = + le64_to_cpu(dpio_rsp->qbman_portal_ce_addr); + attr->qbman_portal_ci_offset = + le64_to_cpu(dpio_rsp->qbman_portal_ci_addr); + attr->qbman_version = le32_to_cpu(dpio_rsp->qbman_version); + + return 0; +} + +/** + * dpio_get_api_version - Get Data Path I/O API version + * @mc_io: Pointer to MC portal's DPIO object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @major_ver: Major version of DPIO API + * @minor_ver: Minor version of DPIO API + * + * Return: '0' on Success; Error code otherwise + */ +int dpio_get_api_version(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 *major_ver, + u16 *minor_ver) +{ + struct mc_command cmd = { 0 }; + int err; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPIO_CMDID_GET_API_VERSION, + cmd_flags, 0); + + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + /* retrieve response parameters */ + mc_cmd_read_api_version(&cmd, major_ver, minor_ver); + + return 0; +} --- /dev/null +++ b/drivers/staging/fsl-mc/bus/dpio/dpio.h @@ -0,0 +1,109 @@ +/* + * Copyright 2013-2016 Freescale Semiconductor Inc. + * Copyright 2016 NXP + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the above-listed copyright holders nor the + * names of any contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef __FSL_DPIO_H +#define __FSL_DPIO_H + +struct fsl_mc_io; + +int dpio_open(struct fsl_mc_io *mc_io, + u32 cmd_flags, + int dpio_id, + u16 *token); + +int dpio_close(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token); + +/** + * enum dpio_channel_mode - DPIO notification channel mode + * @DPIO_NO_CHANNEL: No support for notification channel + * @DPIO_LOCAL_CHANNEL: Notifications on data availability can be received by a + * dedicated channel in the DPIO; user should point the queue's + * destination in the relevant interface to this DPIO + */ +enum dpio_channel_mode { + DPIO_NO_CHANNEL = 0, + DPIO_LOCAL_CHANNEL = 1, +}; + +/** + * struct dpio_cfg - Structure representing DPIO configuration + * @channel_mode: Notification channel mode + * @num_priorities: Number of priorities for the notification channel (1-8); + * relevant only if 'channel_mode = DPIO_LOCAL_CHANNEL' + */ +struct dpio_cfg { + enum dpio_channel_mode channel_mode; + u8 num_priorities; +}; + +int dpio_enable(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token); + +int dpio_disable(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token); + +/** + * struct dpio_attr - Structure representing DPIO attributes + * @id: DPIO object ID + * @qbman_portal_ce_offset: offset of the software portal cache-enabled area + * @qbman_portal_ci_offset: offset of the software portal cache-inhibited area + * @qbman_portal_id: Software portal ID + * @channel_mode: Notification channel mode + * @num_priorities: Number of priorities for the notification channel (1-8); + * relevant only if 'channel_mode = DPIO_LOCAL_CHANNEL' + * @qbman_version: QBMAN version + */ +struct dpio_attr { + int id; + u64 qbman_portal_ce_offset; + u64 qbman_portal_ci_offset; + u16 qbman_portal_id; + enum dpio_channel_mode channel_mode; + u8 num_priorities; + u32 qbman_version; +}; + +int dpio_get_attributes(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + struct dpio_attr *attr); + +int dpio_get_api_version(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 *major_ver, + u16 *minor_ver); + +#endif /* __FSL_DPIO_H */ --- /dev/null +++ b/drivers/staging/fsl-mc/bus/dpio/qbman-portal.c @@ -0,0 +1,1049 @@ +/* + * Copyright (C) 2014-2016 Freescale Semiconductor, Inc. + * Copyright 2016 NXP + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Freescale Semiconductor nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include +#include +#include +#include "../../include/dpaa2-global.h" + +#include "qbman-portal.h" + +struct qb_attr_code code_generic_verb = QB_CODE(0, 0, 7); +struct qb_attr_code code_generic_rslt = QB_CODE(0, 8, 8); + +#define QMAN_REV_4000 0x04000000 +#define QMAN_REV_4100 0x04010000 +#define QMAN_REV_4101 0x04010001 +#define QMAN_REV_MASK 0xffff0000 + +/* All QBMan command and result structures use this "valid bit" encoding */ +#define QB_VALID_BIT ((u32)0x80) + +/* QBMan portal management command codes */ +#define QBMAN_MC_ACQUIRE 0x30 +#define QBMAN_WQCHAN_CONFIGURE 0x46 + +/* CINH register offsets */ +#define QBMAN_CINH_SWP_EQAR 0x8c0 +#define QBMAN_CINH_SWP_DQPI 0xa00 +#define QBMAN_CINH_SWP_DCAP 0xac0 +#define QBMAN_CINH_SWP_SDQCR 0xb00 +#define QBMAN_CINH_SWP_RAR 0xcc0 +#define QBMAN_CINH_SWP_ISR 0xe00 +#define QBMAN_CINH_SWP_IER 0xe40 +#define QBMAN_CINH_SWP_ISDR 0xe80 +#define QBMAN_CINH_SWP_IIR 0xec0 + +/* CENA register offsets */ +#define QBMAN_CENA_SWP_EQCR(n) (0x000 + ((u32)(n) << 6)) +#define QBMAN_CENA_SWP_DQRR(n) (0x200 + ((u32)(n) << 6)) +#define QBMAN_CENA_SWP_RCR(n) (0x400 + ((u32)(n) << 6)) +#define QBMAN_CENA_SWP_CR 0x600 +#define QBMAN_CENA_SWP_RR(vb) (0x700 + ((u32)(vb) >> 1)) +#define QBMAN_CENA_SWP_VDQCR 0x780 + +/* Reverse mapping of QBMAN_CENA_SWP_DQRR() */ +#define QBMAN_IDX_FROM_DQRR(p) (((unsigned long)(p) & 0x1ff) >> 6) + +/* Define token used to determine if response written to memory is valid */ +#define QMAN_DQ_TOKEN_VALID 1 + +/* SDQCR attribute codes */ +#define QB_SDQCR_FC_SHIFT 29 +#define QB_SDQCR_FC_MASK 0x1 +#define QB_SDQCR_DCT_SHIFT 24 +#define QB_SDQCR_DCT_MASK 0x3 +#define QB_SDQCR_TOK_SHIFT 16 +#define QB_SDQCR_TOK_MASK 0xff +#define QB_SDQCR_SRC_SHIFT 0 +#define QB_SDQCR_SRC_MASK 0xffff + +/* opaque token for static dequeues */ +#define QMAN_SDQCR_TOKEN 0xbb + +enum qbman_sdqcr_dct { + qbman_sdqcr_dct_null = 0, + qbman_sdqcr_dct_prio_ics, + qbman_sdqcr_dct_active_ics, + qbman_sdqcr_dct_active +}; + +enum qbman_sdqcr_fc { + qbman_sdqcr_fc_one = 0, + qbman_sdqcr_fc_up_to_3 = 1 +}; + +#define dccvac(p) { asm volatile("dc cvac, %0;" : : "r" (p) : "memory"); } +#define dcivac(p) { asm volatile("dc ivac, %0" : : "r"(p) : "memory"); } +static inline void qbman_inval_prefetch(struct qbman_swp *p, uint32_t offset) +{ + dcivac(p->addr_cena + offset); + prefetch(p->addr_cena + offset); +} + +/* Portal Access */ + +static inline u32 qbman_read_register(struct qbman_swp *p, u32 offset) +{ + return readl_relaxed(p->addr_cinh + offset); +} + +static inline void qbman_write_register(struct qbman_swp *p, u32 offset, + u32 value) +{ + writel_relaxed(value, p->addr_cinh + offset); +} + +static inline void *qbman_get_cmd(struct qbman_swp *p, u32 offset) +{ + return p->addr_cena + offset; +} + +#define QBMAN_CINH_SWP_CFG 0xd00 + +#define SWP_CFG_DQRR_MF_SHIFT 20 +#define SWP_CFG_EST_SHIFT 16 +#define SWP_CFG_WN_SHIFT 14 +#define SWP_CFG_RPM_SHIFT 12 +#define SWP_CFG_DCM_SHIFT 10 +#define SWP_CFG_EPM_SHIFT 8 +#define SWP_CFG_SD_SHIFT 5 +#define SWP_CFG_SP_SHIFT 4 +#define SWP_CFG_SE_SHIFT 3 +#define SWP_CFG_DP_SHIFT 2 +#define SWP_CFG_DE_SHIFT 1 +#define SWP_CFG_EP_SHIFT 0 + +static inline u32 qbman_set_swp_cfg(u8 max_fill, u8 wn, u8 est, u8 rpm, u8 dcm, + u8 epm, int sd, int sp, int se, + int dp, int de, int ep) +{ + return cpu_to_le32 (max_fill << SWP_CFG_DQRR_MF_SHIFT | + est << SWP_CFG_EST_SHIFT | + wn << SWP_CFG_WN_SHIFT | + rpm << SWP_CFG_RPM_SHIFT | + dcm << SWP_CFG_DCM_SHIFT | + epm << SWP_CFG_EPM_SHIFT | + sd << SWP_CFG_SD_SHIFT | + sp << SWP_CFG_SP_SHIFT | + se << SWP_CFG_SE_SHIFT | + dp << SWP_CFG_DP_SHIFT | + de << SWP_CFG_DE_SHIFT | + ep << SWP_CFG_EP_SHIFT); +} + +/** + * qbman_swp_init() - Create a functional object representing the given + * QBMan portal descriptor. + * @d: the given qbman swp descriptor + * + * Return qbman_swp portal for success, NULL if the object cannot + * be created. + */ +struct qbman_swp *qbman_swp_init(const struct qbman_swp_desc *d) +{ + struct qbman_swp *p = kmalloc(sizeof(*p), GFP_KERNEL); + u32 reg; + + if (!p) + return NULL; + p->desc = d; + p->mc.valid_bit = QB_VALID_BIT; + p->sdq = 0; + p->sdq |= qbman_sdqcr_dct_prio_ics << QB_SDQCR_DCT_SHIFT; + p->sdq |= qbman_sdqcr_fc_up_to_3 << QB_SDQCR_FC_SHIFT; + p->sdq |= QMAN_SDQCR_TOKEN << QB_SDQCR_TOK_SHIFT; + + atomic_set(&p->vdq.available, 1); + p->vdq.valid_bit = QB_VALID_BIT; + p->dqrr.next_idx = 0; + p->dqrr.valid_bit = QB_VALID_BIT; + + if ((p->desc->qman_version & QMAN_REV_MASK) < QMAN_REV_4100) { + p->dqrr.dqrr_size = 4; + p->dqrr.reset_bug = 1; + } else { + p->dqrr.dqrr_size = 8; + p->dqrr.reset_bug = 0; + } + + p->addr_cena = d->cena_bar; + p->addr_cinh = d->cinh_bar; + + reg = qbman_set_swp_cfg(p->dqrr.dqrr_size, + 0, /* Writes cacheable */ + 0, /* EQCR_CI stashing threshold */ + 3, /* RPM: Valid bit mode, RCR in array mode */ + 2, /* DCM: Discrete consumption ack mode */ + 3, /* EPM: Valid bit mode, EQCR in array mode */ + 0, /* mem stashing drop enable == FALSE */ + 1, /* mem stashing priority == TRUE */ + 0, /* mem stashing enable == FALSE */ + 1, /* dequeue stashing priority == TRUE */ + 0, /* dequeue stashing enable == FALSE */ + 0); /* EQCR_CI stashing priority == FALSE */ + + qbman_write_register(p, QBMAN_CINH_SWP_CFG, reg); + reg = qbman_read_register(p, QBMAN_CINH_SWP_CFG); + if (!reg) { + pr_err("qbman: the portal is not enabled!\n"); + return NULL; + } + + /* + * SDQCR needs to be initialized to 0 when no channels are + * being dequeued from or else the QMan HW will indicate an + * error. The values that were calculated above will be + * applied when dequeues from a specific channel are enabled. + */ + qbman_write_register(p, QBMAN_CINH_SWP_SDQCR, 0); + return p; +} + +/** + * qbman_swp_finish() - Create and destroy a functional object representing + * the given QBMan portal descriptor. + * @p: the qbman_swp object to be destroyed + */ +void qbman_swp_finish(struct qbman_swp *p) +{ + kfree(p); +} + +/** + * qbman_swp_interrupt_read_status() + * @p: the given software portal + * + * Return the value in the SWP_ISR register. + */ +u32 qbman_swp_interrupt_read_status(struct qbman_swp *p) +{ + return qbman_read_register(p, QBMAN_CINH_SWP_ISR); +} + +/** + * qbman_swp_interrupt_clear_status() + * @p: the given software portal + * @mask: The mask to clear in SWP_ISR register + */ +void qbman_swp_interrupt_clear_status(struct qbman_swp *p, u32 mask) +{ + qbman_write_register(p, QBMAN_CINH_SWP_ISR, mask); +} + +/** + * qbman_swp_interrupt_get_trigger() - read interrupt enable register + * @p: the given software portal + * + * Return the value in the SWP_IER register. + */ +u32 qbman_swp_interrupt_get_trigger(struct qbman_swp *p) +{ + return qbman_read_register(p, QBMAN_CINH_SWP_IER); +} + +/** + * qbman_swp_interrupt_set_trigger() - enable interrupts for a swp + * @p: the given software portal + * @mask: The mask of bits to enable in SWP_IER + */ +void qbman_swp_interrupt_set_trigger(struct qbman_swp *p, u32 mask) +{ + qbman_write_register(p, QBMAN_CINH_SWP_IER, mask); +} + +/** + * qbman_swp_interrupt_get_inhibit() - read interrupt mask register + * @p: the given software portal object + * + * Return the value in the SWP_IIR register. + */ +int qbman_swp_interrupt_get_inhibit(struct qbman_swp *p) +{ + return qbman_read_register(p, QBMAN_CINH_SWP_IIR); +} + +/** + * qbman_swp_interrupt_set_inhibit() - write interrupt mask register + * @p: the given software portal object + * @mask: The mask to set in SWP_IIR register + */ +void qbman_swp_interrupt_set_inhibit(struct qbman_swp *p, int inhibit) +{ + qbman_write_register(p, QBMAN_CINH_SWP_IIR, inhibit ? 0xffffffff : 0); +} + +/* + * Different management commands all use this common base layer of code to issue + * commands and poll for results. + */ + +/* + * Returns a pointer to where the caller should fill in their management command + * (caller should ignore the verb byte) + */ +void *qbman_swp_mc_start(struct qbman_swp *p) +{ + return qbman_get_cmd(p, QBMAN_CENA_SWP_CR); +} + +/* + * Commits merges in the caller-supplied command verb (which should not include + * the valid-bit) and submits the command to hardware + */ +void qbman_swp_mc_submit(struct qbman_swp *p, void *cmd, u8 cmd_verb) +{ + u8 *v = cmd; + + dma_wmb(); + *v = cmd_verb | p->mc.valid_bit; + dccvac(cmd); +} + +/* + * Checks for a completed response (returns non-NULL if only if the response + * is complete). + */ +void *qbman_swp_mc_result(struct qbman_swp *p) +{ + u32 *ret, verb; + + qbman_inval_prefetch(p, QBMAN_CENA_SWP_RR(p->mc.valid_bit)); + ret = qbman_get_cmd(p, QBMAN_CENA_SWP_RR(p->mc.valid_bit)); + + /* Remove the valid-bit - command completed if the rest is non-zero */ + verb = ret[0] & ~QB_VALID_BIT; + if (!verb) + return NULL; + p->mc.valid_bit ^= QB_VALID_BIT; + return ret; +} + +#define QB_ENQUEUE_CMD_OPTIONS_SHIFT 0 +enum qb_enqueue_commands { + enqueue_empty = 0, + enqueue_response_always = 1, + enqueue_rejects_to_fq = 2 +}; + +#define QB_ENQUEUE_CMD_ORP_ENABLE_SHIFT 2 +#define QB_ENQUEUE_CMD_IRQ_ON_DISPATCH_SHIFT 3 +#define QB_ENQUEUE_CMD_TARGET_TYPE_SHIFT 4 + +/** + * qbman_eq_desc_clear() - Clear the contents of a descriptor to + * default/starting state. + */ +void qbman_eq_desc_clear(struct qbman_eq_desc *d) +{ + memset(d, 0, sizeof(*d)); +} + +/** + * qbman_eq_desc_set_no_orp() - Set enqueue descriptor without orp + * @d: the enqueue descriptor. + * @response_success: 1 = enqueue with response always; 0 = enqueue with + * rejections returned on a FQ. + */ +void qbman_eq_desc_set_no_orp(struct qbman_eq_desc *d, int respond_success) +{ + d->verb &= ~(1 << QB_ENQUEUE_CMD_ORP_ENABLE_SHIFT); + if (respond_success) + d->verb |= enqueue_response_always; + else + d->verb |= enqueue_rejects_to_fq; +} + +/* + * Exactly one of the following descriptor "targets" should be set. (Calling any + * one of these will replace the effect of any prior call to one of these.) + * -enqueue to a frame queue + * -enqueue to a queuing destination + */ + +/** + * qbman_eq_desc_set_fq() - set the FQ for the enqueue command + * @d: the enqueue descriptor + * @fqid: the id of the frame queue to be enqueued + */ +void qbman_eq_desc_set_fq(struct qbman_eq_desc *d, u32 fqid) +{ + d->verb &= ~(1 << QB_ENQUEUE_CMD_TARGET_TYPE_SHIFT); + d->tgtid = cpu_to_le32(fqid); +} + +/** + * qbman_eq_desc_set_qd() - Set Queuing Destination for the enqueue command + * @d: the enqueue descriptor + * @qdid: the id of the queuing destination to be enqueued + * @qd_bin: the queuing destination bin + * @qd_prio: the queuing destination priority + */ +void qbman_eq_desc_set_qd(struct qbman_eq_desc *d, u32 qdid, + u32 qd_bin, u32 qd_prio) +{ + d->verb |= 1 << QB_ENQUEUE_CMD_TARGET_TYPE_SHIFT; + d->tgtid = cpu_to_le32(qdid); + d->qdbin = cpu_to_le16(qd_bin); + d->qpri = qd_prio; +} + +#define EQAR_IDX(eqar) ((eqar) & 0x7) +#define EQAR_VB(eqar) ((eqar) & 0x80) +#define EQAR_SUCCESS(eqar) ((eqar) & 0x100) + +/** + * qbman_swp_enqueue() - Issue an enqueue command + * @s: the software portal used for enqueue + * @d: the enqueue descriptor + * @fd: the frame descriptor to be enqueued + * + * Please note that 'fd' should only be NULL if the "action" of the + * descriptor is "orp_hole" or "orp_nesn". + * + * Return 0 for successful enqueue, -EBUSY if the EQCR is not ready. + */ +int qbman_swp_enqueue(struct qbman_swp *s, const struct qbman_eq_desc *d, + const struct dpaa2_fd *fd) +{ + struct qbman_eq_desc *p; + u32 eqar = qbman_read_register(s, QBMAN_CINH_SWP_EQAR); + + if (!EQAR_SUCCESS(eqar)) + return -EBUSY; + + p = qbman_get_cmd(s, QBMAN_CENA_SWP_EQCR(EQAR_IDX(eqar))); + memcpy(&p->dca, &d->dca, 31); + memcpy(&p->fd, fd, sizeof(*fd)); + + /* Set the verb byte, have to substitute in the valid-bit */ + dma_wmb(); + p->verb = d->verb | EQAR_VB(eqar); + dccvac(p); + + return 0; +} + +/* Static (push) dequeue */ + +/** + * qbman_swp_push_get() - Get the push dequeue setup + * @p: the software portal object + * @channel_idx: the channel index to query + * @enabled: returned boolean to show whether the push dequeue is enabled + * for the given channel + */ +void qbman_swp_push_get(struct qbman_swp *s, u8 channel_idx, int *enabled) +{ + u16 src = (s->sdq >> QB_SDQCR_SRC_SHIFT) & QB_SDQCR_SRC_MASK; + + WARN_ON(channel_idx > 15); + *enabled = src | (1 << channel_idx); +} + +/** + * qbman_swp_push_set() - Enable or disable push dequeue + * @p: the software portal object + * @channel_idx: the channel index (0 to 15) + * @enable: enable or disable push dequeue + */ +void qbman_swp_push_set(struct qbman_swp *s, u8 channel_idx, int enable) +{ + u16 dqsrc; + + WARN_ON(channel_idx > 15); + if (enable) + s->sdq |= 1 << channel_idx; + else + s->sdq &= ~(1 << channel_idx); + + /* Read make the complete src map. If no channels are enabled + * the SDQCR must be 0 or else QMan will assert errors + */ + dqsrc = (s->sdq >> QB_SDQCR_SRC_SHIFT) & QB_SDQCR_SRC_MASK; + if (dqsrc != 0) + qbman_write_register(s, QBMAN_CINH_SWP_SDQCR, s->sdq); + else + qbman_write_register(s, QBMAN_CINH_SWP_SDQCR, 0); +} + +#define QB_VDQCR_VERB_DCT_SHIFT 0 +#define QB_VDQCR_VERB_DT_SHIFT 2 +#define QB_VDQCR_VERB_RLS_SHIFT 4 +#define QB_VDQCR_VERB_WAE_SHIFT 5 + +enum qb_pull_dt_e { + qb_pull_dt_channel, + qb_pull_dt_workqueue, + qb_pull_dt_framequeue +}; + +/** + * qbman_pull_desc_clear() - Clear the contents of a descriptor to + * default/starting state + * @d: the pull dequeue descriptor to be cleared + */ +void qbman_pull_desc_clear(struct qbman_pull_desc *d) +{ + memset(d, 0, sizeof(*d)); +} + +/** + * qbman_pull_desc_set_storage()- Set the pull dequeue storage + * @d: the pull dequeue descriptor to be set + * @storage: the pointer of the memory to store the dequeue result + * @storage_phys: the physical address of the storage memory + * @stash: to indicate whether write allocate is enabled + * + * If not called, or if called with 'storage' as NULL, the result pull dequeues + * will produce results to DQRR. If 'storage' is non-NULL, then results are + * produced to the given memory location (using the DMA address which + * the caller provides in 'storage_phys'), and 'stash' controls whether or not + * those writes to main-memory express a cache-warming attribute. + */ +void qbman_pull_desc_set_storage(struct qbman_pull_desc *d, + struct dpaa2_dq *storage, + dma_addr_t storage_phys, + int stash) +{ + /* save the virtual address */ + d->rsp_addr_virt = (u64)storage; + + if (!storage) { + d->verb &= ~(1 << QB_VDQCR_VERB_RLS_SHIFT); + return; + } + d->verb |= 1 << QB_VDQCR_VERB_RLS_SHIFT; + if (stash) + d->verb |= 1 << QB_VDQCR_VERB_WAE_SHIFT; + else + d->verb &= ~(1 << QB_VDQCR_VERB_WAE_SHIFT); + + d->rsp_addr = cpu_to_le64(storage_phys); +} + +/** + * qbman_pull_desc_set_numframes() - Set the number of frames to be dequeued + * @d: the pull dequeue descriptor to be set + * @numframes: number of frames to be set, must be between 1 and 16, inclusive + */ +void qbman_pull_desc_set_numframes(struct qbman_pull_desc *d, u8 numframes) +{ + d->numf = numframes - 1; +} + +void qbman_pull_desc_set_token(struct qbman_pull_desc *d, u8 token) +{ + d->tok = token; +} + +/* + * Exactly one of the following descriptor "actions" should be set. (Calling any + * one of these will replace the effect of any prior call to one of these.) + * - pull dequeue from the given frame queue (FQ) + * - pull dequeue from any FQ in the given work queue (WQ) + * - pull dequeue from any FQ in any WQ in the given channel + */ + +/** + * qbman_pull_desc_set_fq() - Set fqid from which the dequeue command dequeues + * @fqid: the frame queue index of the given FQ + */ +void qbman_pull_desc_set_fq(struct qbman_pull_desc *d, u32 fqid) +{ + d->verb |= 1 << QB_VDQCR_VERB_DCT_SHIFT; + d->verb |= qb_pull_dt_framequeue << QB_VDQCR_VERB_DT_SHIFT; + d->dq_src = cpu_to_le32(fqid); +} + +/** + * qbman_pull_desc_set_wq() - Set wqid from which the dequeue command dequeues + * @wqid: composed of channel id and wqid within the channel + * @dct: the dequeue command type + */ +void qbman_pull_desc_set_wq(struct qbman_pull_desc *d, u32 wqid, + enum qbman_pull_type_e dct) +{ + d->verb |= dct << QB_VDQCR_VERB_DCT_SHIFT; + d->verb |= qb_pull_dt_workqueue << QB_VDQCR_VERB_DT_SHIFT; + d->dq_src = cpu_to_le32(wqid); +} + +/** + * qbman_pull_desc_set_channel() - Set channelid from which the dequeue command + * dequeues + * @chid: the channel id to be dequeued + * @dct: the dequeue command type + */ +void qbman_pull_desc_set_channel(struct qbman_pull_desc *d, u32 chid, + enum qbman_pull_type_e dct) +{ + d->verb |= dct << QB_VDQCR_VERB_DCT_SHIFT; + d->verb |= qb_pull_dt_channel << QB_VDQCR_VERB_DT_SHIFT; + d->dq_src = cpu_to_le32(chid); +} + +/** + * qbman_swp_pull() - Issue the pull dequeue command + * @s: the software portal object + * @d: the software portal descriptor which has been configured with + * the set of qbman_pull_desc_set_*() calls + * + * Return 0 for success, and -EBUSY if the software portal is not ready + * to do pull dequeue. + */ +int qbman_swp_pull(struct qbman_swp *s, struct qbman_pull_desc *d) +{ + struct qbman_pull_desc *p; + + if (!atomic_dec_and_test(&s->vdq.available)) { + atomic_inc(&s->vdq.available); + return -EBUSY; + } + s->vdq.storage = (void *)d->rsp_addr_virt; + p = qbman_get_cmd(s, QBMAN_CENA_SWP_VDQCR); + p->numf = d->numf; + p->tok = QMAN_DQ_TOKEN_VALID; + p->dq_src = d->dq_src; + p->rsp_addr = d->rsp_addr; + p->rsp_addr_virt = d->rsp_addr_virt; + dma_wmb(); + + /* Set the verb byte, have to substitute in the valid-bit */ + p->verb = d->verb | s->vdq.valid_bit; + s->vdq.valid_bit ^= QB_VALID_BIT; + dccvac(p); + + return 0; +} + +#define QMAN_DQRR_PI_MASK 0xf + +/** + * qbman_swp_dqrr_next() - Get an valid DQRR entry + * @s: the software portal object + * + * Return NULL if there are no unconsumed DQRR entries. Return a DQRR entry + * only once, so repeated calls can return a sequence of DQRR entries, without + * requiring they be consumed immediately or in any particular order. + */ +const struct dpaa2_dq *qbman_swp_dqrr_next(struct qbman_swp *s) +{ + u32 verb; + u32 response_verb; + u32 flags; + struct dpaa2_dq *p; + + /* Before using valid-bit to detect if something is there, we have to + * handle the case of the DQRR reset bug... + */ + if (unlikely(s->dqrr.reset_bug)) { + /* + * We pick up new entries by cache-inhibited producer index, + * which means that a non-coherent mapping would require us to + * invalidate and read *only* once that PI has indicated that + * there's an entry here. The first trip around the DQRR ring + * will be much less efficient than all subsequent trips around + * it... + */ + u8 pi = qbman_read_register(s, QBMAN_CINH_SWP_DQPI) & + QMAN_DQRR_PI_MASK; + + /* there are new entries if pi != next_idx */ + if (pi == s->dqrr.next_idx) + return NULL; + + /* + * if next_idx is/was the last ring index, and 'pi' is + * different, we can disable the workaround as all the ring + * entries have now been DMA'd to so valid-bit checking is + * repaired. Note: this logic needs to be based on next_idx + * (which increments one at a time), rather than on pi (which + * can burst and wrap-around between our snapshots of it). + */ + if (s->dqrr.next_idx == (s->dqrr.dqrr_size - 1)) { + pr_debug("next_idx=%d, pi=%d, clear reset bug\n", + s->dqrr.next_idx, pi); + s->dqrr.reset_bug = 0; + } + qbman_inval_prefetch(s, QBMAN_CENA_SWP_DQRR(s->dqrr.next_idx)); + } + + p = qbman_get_cmd(s, QBMAN_CENA_SWP_DQRR(s->dqrr.next_idx)); + verb = p->dq.verb; + + /* + * If the valid-bit isn't of the expected polarity, nothing there. Note, + * in the DQRR reset bug workaround, we shouldn't need to skip these + * check, because we've already determined that a new entry is available + * and we've invalidated the cacheline before reading it, so the + * valid-bit behaviour is repaired and should tell us what we already + * knew from reading PI. + */ + if ((verb & QB_VALID_BIT) != s->dqrr.valid_bit) { + qbman_inval_prefetch(s, QBMAN_CENA_SWP_DQRR(s->dqrr.next_idx)); + return NULL; + } + /* + * There's something there. Move "next_idx" attention to the next ring + * entry (and prefetch it) before returning what we found. + */ + s->dqrr.next_idx++; + s->dqrr.next_idx &= s->dqrr.dqrr_size - 1; /* Wrap around */ + if (!s->dqrr.next_idx) + s->dqrr.valid_bit ^= QB_VALID_BIT; + + /* + * If this is the final response to a volatile dequeue command + * indicate that the vdq is available + */ + flags = p->dq.stat; + response_verb = verb & QBMAN_RESULT_MASK; + if ((response_verb == QBMAN_RESULT_DQ) && + (flags & DPAA2_DQ_STAT_VOLATILE) && + (flags & DPAA2_DQ_STAT_EXPIRED)) + atomic_inc(&s->vdq.available); + + qbman_inval_prefetch(s, QBMAN_CENA_SWP_DQRR(s->dqrr.next_idx)); + + return p; +} + +/** + * qbman_swp_dqrr_consume() - Consume DQRR entries previously returned from + * qbman_swp_dqrr_next(). + * @s: the software portal object + * @dq: the DQRR entry to be consumed + */ +void qbman_swp_dqrr_consume(struct qbman_swp *s, const struct dpaa2_dq *dq) +{ + qbman_write_register(s, QBMAN_CINH_SWP_DCAP, QBMAN_IDX_FROM_DQRR(dq)); +} + +/** + * qbman_result_has_new_result() - Check and get the dequeue response from the + * dq storage memory set in pull dequeue command + * @s: the software portal object + * @dq: the dequeue result read from the memory + * + * Return 1 for getting a valid dequeue result, or 0 for not getting a valid + * dequeue result. + * + * Only used for user-provided storage of dequeue results, not DQRR. For + * efficiency purposes, the driver will perform any required endianness + * conversion to ensure that the user's dequeue result storage is in host-endian + * format. As such, once the user has called qbman_result_has_new_result() and + * been returned a valid dequeue result, they should not call it again on + * the same memory location (except of course if another dequeue command has + * been executed to produce a new result to that location). + */ +int qbman_result_has_new_result(struct qbman_swp *s, const struct dpaa2_dq *dq) +{ + if (dq->dq.tok != QMAN_DQ_TOKEN_VALID) + return 0; + + /* + * Set token to be 0 so we will detect change back to 1 + * next time the looping is traversed. Const is cast away here + * as we want users to treat the dequeue responses as read only. + */ + ((struct dpaa2_dq *)dq)->dq.tok = 0; + + /* + * Determine whether VDQCR is available based on whether the + * current result is sitting in the first storage location of + * the busy command. + */ + if (s->vdq.storage == dq) { + s->vdq.storage = NULL; + atomic_inc(&s->vdq.available); + } + + return 1; +} + +/** + * qbman_release_desc_clear() - Clear the contents of a descriptor to + * default/starting state. + */ +void qbman_release_desc_clear(struct qbman_release_desc *d) +{ + memset(d, 0, sizeof(*d)); + d->verb = 1 << 5; /* Release Command Valid */ +} + +/** + * qbman_release_desc_set_bpid() - Set the ID of the buffer pool to release to + */ +void qbman_release_desc_set_bpid(struct qbman_release_desc *d, u16 bpid) +{ + d->bpid = cpu_to_le16(bpid); +} + +/** + * qbman_release_desc_set_rcdi() - Determines whether or not the portal's RCDI + * interrupt source should be asserted after the release command is completed. + */ +void qbman_release_desc_set_rcdi(struct qbman_release_desc *d, int enable) +{ + if (enable) + d->verb |= 1 << 6; + else + d->verb &= ~(1 << 6); +} + +#define RAR_IDX(rar) ((rar) & 0x7) +#define RAR_VB(rar) ((rar) & 0x80) +#define RAR_SUCCESS(rar) ((rar) & 0x100) + +/** + * qbman_swp_release() - Issue a buffer release command + * @s: the software portal object + * @d: the release descriptor + * @buffers: a pointer pointing to the buffer address to be released + * @num_buffers: number of buffers to be released, must be less than 8 + * + * Return 0 for success, -EBUSY if the release command ring is not ready. + */ +int qbman_swp_release(struct qbman_swp *s, const struct qbman_release_desc *d, + const u64 *buffers, unsigned int num_buffers) +{ + int i; + struct qbman_release_desc *p; + u32 rar; + + if (!num_buffers || (num_buffers > 7)) + return -EINVAL; + + rar = qbman_read_register(s, QBMAN_CINH_SWP_RAR); + if (!RAR_SUCCESS(rar)) + return -EBUSY; + + /* Start the release command */ + p = qbman_get_cmd(s, QBMAN_CENA_SWP_RCR(RAR_IDX(rar))); + /* Copy the caller's buffer pointers to the command */ + for (i = 0; i < num_buffers; i++) + p->buf[i] = cpu_to_le64(buffers[i]); + p->bpid = d->bpid; + + /* + * Set the verb byte, have to substitute in the valid-bit and the number + * of buffers. + */ + dma_wmb(); + p->verb = d->verb | RAR_VB(rar) | num_buffers; + dccvac(p); + + return 0; +} + +struct qbman_acquire_desc { + u8 verb; + u8 reserved; + u16 bpid; + u8 num; + u8 reserved2[59]; +}; + +struct qbman_acquire_rslt { + u8 verb; + u8 rslt; + u16 reserved; + u8 num; + u8 reserved2[3]; + u64 buf[7]; +}; + +/** + * qbman_swp_acquire() - Issue a buffer acquire command + * @s: the software portal object + * @bpid: the buffer pool index + * @buffers: a pointer pointing to the acquired buffer addresses + * @num_buffers: number of buffers to be acquired, must be less than 8 + * + * Return 0 for success, or negative error code if the acquire command + * fails. + */ +int qbman_swp_acquire(struct qbman_swp *s, u16 bpid, u64 *buffers, + unsigned int num_buffers) +{ + struct qbman_acquire_desc *p; + struct qbman_acquire_rslt *r; + int i; + + if (!num_buffers || (num_buffers > 7)) + return -EINVAL; + + /* Start the management command */ + p = qbman_swp_mc_start(s); + + if (!p) + return -EBUSY; + + /* Encode the caller-provided attributes */ + p->bpid = cpu_to_le16(bpid); + p->num = num_buffers; + + /* Complete the management command */ + r = qbman_swp_mc_complete(s, p, QBMAN_MC_ACQUIRE); + if (unlikely(!r)) { + pr_err("qbman: acquire from BPID %d failed, no response\n", + bpid); + return -EIO; + } + + /* Decode the outcome */ + WARN_ON((r->verb & 0x7f) != QBMAN_MC_ACQUIRE); + + /* Determine success or failure */ + if (unlikely(r->rslt != QBMAN_MC_RSLT_OK)) { + pr_err("qbman: acquire from BPID 0x%x failed, code=0x%02x\n", + bpid, r->rslt); + return -EIO; + } + + WARN_ON(r->num > num_buffers); + + /* Copy the acquired buffers to the caller's array */ + for (i = 0; i < r->num; i++) + buffers[i] = le64_to_cpu(r->buf[i]); + + return (int)r->num; +} + +struct qbman_alt_fq_state_desc { + u8 verb; + u8 reserved[3]; + u32 fqid; + u8 reserved2[56]; +}; + +struct qbman_alt_fq_state_rslt { + u8 verb; + u8 rslt; + u8 reserved[62]; +}; + +#define ALT_FQ_FQID_MASK 0x00FFFFFF + +int qbman_swp_alt_fq_state(struct qbman_swp *s, u32 fqid, + u8 alt_fq_verb) +{ + struct qbman_alt_fq_state_desc *p; + struct qbman_alt_fq_state_rslt *r; + + /* Start the management command */ + p = qbman_swp_mc_start(s); + if (!p) + return -EBUSY; + + p->fqid = cpu_to_le32(fqid) & ALT_FQ_FQID_MASK; + + /* Complete the management command */ + r = qbman_swp_mc_complete(s, p, alt_fq_verb); + if (unlikely(!r)) { + pr_err("qbman: mgmt cmd failed, no response (verb=0x%x)\n", + alt_fq_verb); + return -EIO; + } + + /* Decode the outcome */ + WARN_ON((r->verb & QBMAN_RESULT_MASK) != alt_fq_verb); + + /* Determine success or failure */ + if (unlikely(r->rslt != QBMAN_MC_RSLT_OK)) { + pr_err("qbman: ALT FQID %d failed: verb = 0x%08x code = 0x%02x\n", + fqid, r->verb, r->rslt); + return -EIO; + } + + return 0; +} + +struct qbman_cdan_ctrl_desc { + u8 verb; + u8 reserved; + u16 ch; + u8 we; + u8 ctrl; + u16 reserved2; + u64 cdan_ctx; + u8 reserved3[48]; + +}; + +struct qbman_cdan_ctrl_rslt { + u8 verb; + u8 rslt; + u16 ch; + u8 reserved[60]; +}; + +int qbman_swp_CDAN_set(struct qbman_swp *s, u16 channelid, + u8 we_mask, u8 cdan_en, + u64 ctx) +{ + struct qbman_cdan_ctrl_desc *p = NULL; + struct qbman_cdan_ctrl_rslt *r = NULL; + + /* Start the management command */ + p = qbman_swp_mc_start(s); + if (!p) + return -EBUSY; + + /* Encode the caller-provided attributes */ + p->ch = cpu_to_le16(channelid); + p->we = we_mask; + if (cdan_en) + p->ctrl = 1; + else + p->ctrl = 0; + p->cdan_ctx = cpu_to_le64(ctx); + + /* Complete the management command */ + r = qbman_swp_mc_complete(s, p, QBMAN_WQCHAN_CONFIGURE); + if (unlikely(!r)) { + pr_err("qbman: wqchan config failed, no response\n"); + return -EIO; + } + + WARN_ON((r->verb & 0x7f) != QBMAN_WQCHAN_CONFIGURE); + + /* Determine success or failure */ + if (unlikely(r->rslt != QBMAN_MC_RSLT_OK)) { + pr_err("qbman: CDAN cQID %d failed: code = 0x%02x\n", + channelid, r->rslt); + return -EIO; + } + + return 0; +} --- /dev/null +++ b/drivers/staging/fsl-mc/bus/dpio/qbman-portal.h @@ -0,0 +1,662 @@ +/* + * Copyright (C) 2014-2016 Freescale Semiconductor, Inc. + * Copyright 2016 NXP + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Freescale Semiconductor nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef __FSL_QBMAN_PORTAL_H +#define __FSL_QBMAN_PORTAL_H + +#include "qbman_private.h" +#include "../../include/dpaa2-fd.h" + +struct dpaa2_dq; +struct qbman_swp; + +/* qbman software portal descriptor structure */ +struct qbman_swp_desc { + void *cena_bar; /* Cache-enabled portal base address */ + void *cinh_bar; /* Cache-inhibited portal base address */ + u32 qman_version; +}; + +#define QBMAN_SWP_INTERRUPT_EQRI 0x01 +#define QBMAN_SWP_INTERRUPT_EQDI 0x02 +#define QBMAN_SWP_INTERRUPT_DQRI 0x04 +#define QBMAN_SWP_INTERRUPT_RCRI 0x08 +#define QBMAN_SWP_INTERRUPT_RCDI 0x10 +#define QBMAN_SWP_INTERRUPT_VDCI 0x20 + +/* the structure for pull dequeue descriptor */ +struct qbman_pull_desc { + u8 verb; + u8 numf; + u8 tok; + u8 reserved; + u32 dq_src; + u64 rsp_addr; + u64 rsp_addr_virt; + u8 padding[40]; +}; + +enum qbman_pull_type_e { + /* dequeue with priority precedence, respect intra-class scheduling */ + qbman_pull_type_prio = 1, + /* dequeue with active FQ precedence, respect ICS */ + qbman_pull_type_active, + /* dequeue with active FQ precedence, no ICS */ + qbman_pull_type_active_noics +}; + +/* Definitions for parsing dequeue entries */ +#define QBMAN_RESULT_MASK 0x7f +#define QBMAN_RESULT_DQ 0x60 +#define QBMAN_RESULT_FQRN 0x21 +#define QBMAN_RESULT_FQRNI 0x22 +#define QBMAN_RESULT_FQPN 0x24 +#define QBMAN_RESULT_FQDAN 0x25 +#define QBMAN_RESULT_CDAN 0x26 +#define QBMAN_RESULT_CSCN_MEM 0x27 +#define QBMAN_RESULT_CGCU 0x28 +#define QBMAN_RESULT_BPSCN 0x29 +#define QBMAN_RESULT_CSCN_WQ 0x2a + +/* QBMan FQ management command codes */ +#define QBMAN_FQ_SCHEDULE 0x48 +#define QBMAN_FQ_FORCE 0x49 +#define QBMAN_FQ_XON 0x4d +#define QBMAN_FQ_XOFF 0x4e + +/* structure of enqueue descriptor */ +struct qbman_eq_desc { + u8 verb; + u8 dca; + u16 seqnum; + u16 orpid; + u16 reserved1; + u32 tgtid; + u32 tag; + u16 qdbin; + u8 qpri; + u8 reserved[3]; + u8 wae; + u8 rspid; + u64 rsp_addr; + u8 fd[32]; +}; + +/* buffer release descriptor */ +struct qbman_release_desc { + u8 verb; + u8 reserved; + u16 bpid; + u32 reserved2; + u64 buf[7]; +}; + +/* Management command result codes */ +#define QBMAN_MC_RSLT_OK 0xf0 + +#define CODE_CDAN_WE_EN 0x1 +#define CODE_CDAN_WE_CTX 0x4 + +/* portal data structure */ +struct qbman_swp { + const struct qbman_swp_desc *desc; + void __iomem *addr_cena; + void __iomem *addr_cinh; + + /* Management commands */ + struct { + u32 valid_bit; /* 0x00 or 0x80 */ + } mc; + + /* Push dequeues */ + u32 sdq; + + /* Volatile dequeues */ + struct { + atomic_t available; /* indicates if a command can be sent */ + u32 valid_bit; /* 0x00 or 0x80 */ + struct dpaa2_dq *storage; /* NULL if DQRR */ + } vdq; + + /* DQRR */ + struct { + u32 next_idx; + u32 valid_bit; + u8 dqrr_size; + int reset_bug; /* indicates dqrr reset workaround is needed */ + } dqrr; +}; + +struct qbman_swp *qbman_swp_init(const struct qbman_swp_desc *d); +void qbman_swp_finish(struct qbman_swp *p); +u32 qbman_swp_interrupt_read_status(struct qbman_swp *p); +void qbman_swp_interrupt_clear_status(struct qbman_swp *p, u32 mask); +u32 qbman_swp_interrupt_get_trigger(struct qbman_swp *p); +void qbman_swp_interrupt_set_trigger(struct qbman_swp *p, u32 mask); +int qbman_swp_interrupt_get_inhibit(struct qbman_swp *p); +void qbman_swp_interrupt_set_inhibit(struct qbman_swp *p, int inhibit); + +void qbman_swp_push_get(struct qbman_swp *p, u8 channel_idx, int *enabled); +void qbman_swp_push_set(struct qbman_swp *p, u8 channel_idx, int enable); + +void qbman_pull_desc_clear(struct qbman_pull_desc *d); +void qbman_pull_desc_set_storage(struct qbman_pull_desc *d, + struct dpaa2_dq *storage, + dma_addr_t storage_phys, + int stash); +void qbman_pull_desc_set_numframes(struct qbman_pull_desc *d, u8 numframes); +void qbman_pull_desc_set_fq(struct qbman_pull_desc *d, u32 fqid); +void qbman_pull_desc_set_wq(struct qbman_pull_desc *d, u32 wqid, + enum qbman_pull_type_e dct); +void qbman_pull_desc_set_channel(struct qbman_pull_desc *d, u32 chid, + enum qbman_pull_type_e dct); + +int qbman_swp_pull(struct qbman_swp *p, struct qbman_pull_desc *d); + +const struct dpaa2_dq *qbman_swp_dqrr_next(struct qbman_swp *s); +void qbman_swp_dqrr_consume(struct qbman_swp *s, const struct dpaa2_dq *dq); + +int qbman_result_has_new_result(struct qbman_swp *p, const struct dpaa2_dq *dq); + +void qbman_eq_desc_clear(struct qbman_eq_desc *d); +void qbman_eq_desc_set_no_orp(struct qbman_eq_desc *d, int respond_success); +void qbman_eq_desc_set_token(struct qbman_eq_desc *d, u8 token); +void qbman_eq_desc_set_fq(struct qbman_eq_desc *d, u32 fqid); +void qbman_eq_desc_set_qd(struct qbman_eq_desc *d, u32 qdid, + u32 qd_bin, u32 qd_prio); + +int qbman_swp_enqueue(struct qbman_swp *p, const struct qbman_eq_desc *d, + const struct dpaa2_fd *fd); + +void qbman_release_desc_clear(struct qbman_release_desc *d); +void qbman_release_desc_set_bpid(struct qbman_release_desc *d, u16 bpid); +void qbman_release_desc_set_rcdi(struct qbman_release_desc *d, int enable); + +int qbman_swp_release(struct qbman_swp *s, const struct qbman_release_desc *d, + const u64 *buffers, unsigned int num_buffers); +int qbman_swp_acquire(struct qbman_swp *s, u16 bpid, u64 *buffers, + unsigned int num_buffers); +int qbman_swp_alt_fq_state(struct qbman_swp *s, u32 fqid, + u8 alt_fq_verb); +int qbman_swp_CDAN_set(struct qbman_swp *s, u16 channelid, + u8 we_mask, u8 cdan_en, + u64 ctx); + +void *qbman_swp_mc_start(struct qbman_swp *p); +void qbman_swp_mc_submit(struct qbman_swp *p, void *cmd, u8 cmd_verb); +void *qbman_swp_mc_result(struct qbman_swp *p); + +/** + * qbman_result_is_DQ() - check if the dequeue result is a dequeue response + * @dq: the dequeue result to be checked + * + * DQRR entries may contain non-dequeue results, ie. notifications + */ +static inline int qbman_result_is_DQ(const struct dpaa2_dq *dq) +{ + return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_DQ); +} + +/** + * qbman_result_is_SCN() - Check the dequeue result is notification or not + * @dq: the dequeue result to be checked + * + */ +static inline int qbman_result_is_SCN(const struct dpaa2_dq *dq) +{ + return !qbman_result_is_DQ(dq); +} + +/* FQ Data Availability */ +static inline int qbman_result_is_FQDAN(const struct dpaa2_dq *dq) +{ + return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_FQDAN); +} + +/* Channel Data Availability */ +static inline int qbman_result_is_CDAN(const struct dpaa2_dq *dq) +{ + return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_CDAN); +} + +/* Congestion State Change */ +static inline int qbman_result_is_CSCN(const struct dpaa2_dq *dq) +{ + return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_CSCN_WQ); +} + +/* Buffer Pool State Change */ +static inline int qbman_result_is_BPSCN(const struct dpaa2_dq *dq) +{ + return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_BPSCN); +} + +/* Congestion Group Count Update */ +static inline int qbman_result_is_CGCU(const struct dpaa2_dq *dq) +{ + return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_CGCU); +} + +/* Retirement */ +static inline int qbman_result_is_FQRN(const struct dpaa2_dq *dq) +{ + return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_FQRN); +} + +/* Retirement Immediate */ +static inline int qbman_result_is_FQRNI(const struct dpaa2_dq *dq) +{ + return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_FQRNI); +} + + /* Park */ +static inline int qbman_result_is_FQPN(const struct dpaa2_dq *dq) +{ + return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_FQPN); +} + +/** + * qbman_result_SCN_state() - Get the state field in State-change notification + */ +static inline u8 qbman_result_SCN_state(const struct dpaa2_dq *scn) +{ + return scn->scn.state; +} + +#define SCN_RID_MASK 0x00FFFFFF + +/** + * qbman_result_SCN_rid() - Get the resource id in State-change notification + */ +static inline u32 qbman_result_SCN_rid(const struct dpaa2_dq *scn) +{ + return le32_to_cpu(scn->scn.rid_tok) & SCN_RID_MASK; +} + +/** + * qbman_result_SCN_ctx() - Get the context data in State-change notification + */ +static inline u64 qbman_result_SCN_ctx(const struct dpaa2_dq *scn) +{ + return le64_to_cpu(scn->scn.ctx); +} + +/** + * qbman_swp_fq_schedule() - Move the fq to the scheduled state + * @s: the software portal object + * @fqid: the index of frame queue to be scheduled + * + * There are a couple of different ways that a FQ can end up parked state, + * This schedules it. + * + * Return 0 for success, or negative error code for failure. + */ +static inline int qbman_swp_fq_schedule(struct qbman_swp *s, u32 fqid) +{ + return qbman_swp_alt_fq_state(s, fqid, QBMAN_FQ_SCHEDULE); +} + +/** + * qbman_swp_fq_force() - Force the FQ to fully scheduled state + * @s: the software portal object + * @fqid: the index of frame queue to be forced + * + * Force eligible will force a tentatively-scheduled FQ to be fully-scheduled + * and thus be available for selection by any channel-dequeuing behaviour (push + * or pull). If the FQ is subsequently "dequeued" from the channel and is still + * empty at the time this happens, the resulting dq_entry will have no FD. + * (qbman_result_DQ_fd() will return NULL.) + * + * Return 0 for success, or negative error code for failure. + */ +static inline int qbman_swp_fq_force(struct qbman_swp *s, u32 fqid) +{ + return qbman_swp_alt_fq_state(s, fqid, QBMAN_FQ_FORCE); +} + +/** + * qbman_swp_fq_xon() - sets FQ flow-control to XON + * @s: the software portal object + * @fqid: the index of frame queue + * + * This setting doesn't affect enqueues to the FQ, just dequeues. + * + * Return 0 for success, or negative error code for failure. + */ +static inline int qbman_swp_fq_xon(struct qbman_swp *s, u32 fqid) +{ + return qbman_swp_alt_fq_state(s, fqid, QBMAN_FQ_XON); +} + +/** + * qbman_swp_fq_xoff() - sets FQ flow-control to XOFF + * @s: the software portal object + * @fqid: the index of frame queue + * + * This setting doesn't affect enqueues to the FQ, just dequeues. + * XOFF FQs will remain in the tenatively-scheduled state, even when + * non-empty, meaning they won't be selected for scheduled dequeuing. + * If a FQ is changed to XOFF after it had already become truly-scheduled + * to a channel, and a pull dequeue of that channel occurs that selects + * that FQ for dequeuing, then the resulting dq_entry will have no FD. + * (qbman_result_DQ_fd() will return NULL.) + * + * Return 0 for success, or negative error code for failure. + */ +static inline int qbman_swp_fq_xoff(struct qbman_swp *s, u32 fqid) +{ + return qbman_swp_alt_fq_state(s, fqid, QBMAN_FQ_XOFF); +} + +/* If the user has been allocated a channel object that is going to generate + * CDANs to another channel, then the qbman_swp_CDAN* functions will be + * necessary. + * + * CDAN-enabled channels only generate a single CDAN notification, after which + * they need to be reenabled before they'll generate another. The idea is + * that pull dequeuing will occur in reaction to the CDAN, followed by a + * reenable step. Each function generates a distinct command to hardware, so a + * combination function is provided if the user wishes to modify the "context" + * (which shows up in each CDAN message) each time they reenable, as a single + * command to hardware. + */ + +/** + * qbman_swp_CDAN_set_context() - Set CDAN context + * @s: the software portal object + * @channelid: the channel index + * @ctx: the context to be set in CDAN + * + * Return 0 for success, or negative error code for failure. + */ +static inline int qbman_swp_CDAN_set_context(struct qbman_swp *s, u16 channelid, + u64 ctx) +{ + return qbman_swp_CDAN_set(s, channelid, + CODE_CDAN_WE_CTX, + 0, ctx); +} + +/** + * qbman_swp_CDAN_enable() - Enable CDAN for the channel + * @s: the software portal object + * @channelid: the index of the channel to generate CDAN + * + * Return 0 for success, or negative error code for failure. + */ +static inline int qbman_swp_CDAN_enable(struct qbman_swp *s, u16 channelid) +{ + return qbman_swp_CDAN_set(s, channelid, + CODE_CDAN_WE_EN, + 1, 0); +} + +/** + * qbman_swp_CDAN_disable() - disable CDAN for the channel + * @s: the software portal object + * @channelid: the index of the channel to generate CDAN + * + * Return 0 for success, or negative error code for failure. + */ +static inline int qbman_swp_CDAN_disable(struct qbman_swp *s, u16 channelid) +{ + return qbman_swp_CDAN_set(s, channelid, + CODE_CDAN_WE_EN, + 0, 0); +} + +/** + * qbman_swp_CDAN_set_context_enable() - Set CDAN contest and enable CDAN + * @s: the software portal object + * @channelid: the index of the channel to generate CDAN + * @ctx:i the context set in CDAN + * + * Return 0 for success, or negative error code for failure. + */ +static inline int qbman_swp_CDAN_set_context_enable(struct qbman_swp *s, + u16 channelid, + u64 ctx) +{ + return qbman_swp_CDAN_set(s, channelid, + CODE_CDAN_WE_EN | CODE_CDAN_WE_CTX, + 1, ctx); +} + +/* Wraps up submit + poll-for-result */ +static inline void *qbman_swp_mc_complete(struct qbman_swp *swp, void *cmd, + u8 cmd_verb) +{ + int loopvar = 1000; + + qbman_swp_mc_submit(swp, cmd, cmd_verb); + + do { + cmd = qbman_swp_mc_result(swp); + } while (!cmd && loopvar--); + + WARN_ON(!loopvar); + + return cmd; +} + +/* ------------ */ +/* qb_attr_code */ +/* ------------ */ + +/* This struct locates a sub-field within a QBMan portal (CENA) cacheline which + * is either serving as a configuration command or a query result. The + * representation is inherently little-endian, as the indexing of the words is + * itself little-endian in nature and layerscape is little endian for anything + * that crosses a word boundary too (64-bit fields are the obvious examples). + */ +struct qb_attr_code { + unsigned int word; /* which u32[] array member encodes the field */ + unsigned int lsoffset; /* encoding offset from ls-bit */ + unsigned int width; /* encoding width. (bool must be 1.) */ +}; + +/* Some pre-defined codes */ +extern struct qb_attr_code code_generic_verb; +extern struct qb_attr_code code_generic_rslt; + +/* Macros to define codes */ +#define QB_CODE(a, b, c) { a, b, c} +#define QB_CODE_NULL \ + QB_CODE((unsigned int)-1, (unsigned int)-1, (unsigned int)-1) + +/* Rotate a code "ms", meaning that it moves from less-significant bytes to + * more-significant, from less-significant words to more-significant, etc. The + * "ls" version does the inverse, from more-significant towards + * less-significant. + */ +static inline void qb_attr_code_rotate_ms(struct qb_attr_code *code, + unsigned int bits) +{ + code->lsoffset += bits; + while (code->lsoffset > 31) { + code->word++; + code->lsoffset -= 32; + } +} + +static inline void qb_attr_code_rotate_ls(struct qb_attr_code *code, + unsigned int bits) +{ + /* Don't be fooled, this trick should work because the types are + * unsigned. So the case that interests the while loop (the rotate has + * gone too far and the word count needs to compensate for it), is + * manifested when lsoffset is negative. But that equates to a really + * large unsigned value, starting with lots of "F"s. As such, we can + * continue adding 32 back to it until it wraps back round above zero, + * to a value of 31 or less... + */ + code->lsoffset -= bits; + while (code->lsoffset > 31) { + code->word--; + code->lsoffset += 32; + } +} + +/* Implement a loop of code rotations until 'expr' evaluates to FALSE (0). */ +#define qb_attr_code_for_ms(code, bits, expr) \ + for (; expr; qb_attr_code_rotate_ms(code, bits)) +#define qb_attr_code_for_ls(code, bits, expr) \ + for (; expr; qb_attr_code_rotate_ls(code, bits)) + +static inline void word_copy(void *d, const void *s, unsigned int cnt) +{ + u32 *dd = d; + const u32 *ss = s; + + while (cnt--) + *(dd++) = *(ss++); +} + +/* + * Currently, the CENA support code expects each 32-bit word to be written in + * host order, and these are converted to hardware (little-endian) order on + * command submission. However, 64-bit quantities are must be written (and read) + * as two 32-bit words with the least-significant word first, irrespective of + * host endianness. + */ +static inline void u64_to_le32_copy(void *d, const u64 *s, + unsigned int cnt) +{ + u32 *dd = d; + const u32 *ss = (const u32 *)s; + + while (cnt--) { + /* + * TBD: the toolchain was choking on the use of 64-bit types up + * until recently so this works entirely with 32-bit variables. + * When 64-bit types become usable again, investigate better + * ways of doing this. + */ +#if defined(__BIG_ENDIAN) + *(dd++) = ss[1]; + *(dd++) = ss[0]; + ss += 2; +#else + *(dd++) = *(ss++); + *(dd++) = *(ss++); +#endif + } +} + +static inline void u64_from_le32_copy(u64 *d, const void *s, + unsigned int cnt) +{ + const u32 *ss = s; + u32 *dd = (u32 *)d; + + while (cnt--) { +#if defined(__BIG_ENDIAN) + dd[1] = *(ss++); + dd[0] = *(ss++); + dd += 2; +#else + *(dd++) = *(ss++); + *(dd++) = *(ss++); +#endif + } +} + +/* decode a field from a cacheline */ +static inline u32 qb_attr_code_decode(const struct qb_attr_code *code, + const u32 *cacheline) +{ + return d32_u32(code->lsoffset, code->width, cacheline[code->word]); +} + +static inline u64 qb_attr_code_decode_64(const struct qb_attr_code *code, + const u64 *cacheline) +{ + u64 res; + + u64_from_le32_copy(&res, &cacheline[code->word / 2], 1); + return res; +} + +/* encode a field to a cacheline */ +static inline void qb_attr_code_encode(const struct qb_attr_code *code, + u32 *cacheline, u32 val) +{ + cacheline[code->word] = + r32_u32(code->lsoffset, code->width, cacheline[code->word]) + | e32_u32(code->lsoffset, code->width, val); +} + +static inline void qb_attr_code_encode_64(const struct qb_attr_code *code, + u64 *cacheline, u64 val) +{ + u64_to_le32_copy(&cacheline[code->word / 2], &val, 1); +} + +/* Small-width signed values (two's-complement) will decode into medium-width + * positives. (Eg. for an 8-bit signed field, which stores values from -128 to + * +127, a setting of -7 would appear to decode to the 32-bit unsigned value + * 249. Likewise -120 would decode as 136.) This function allows the caller to + * "re-sign" such fields to 32-bit signed. (Eg. -7, which was 249 with an 8-bit + * encoding, will become 0xfffffff9 if you cast the return value to u32). + */ +static inline int32_t qb_attr_code_makesigned(const struct qb_attr_code *code, + u32 val) +{ + WARN_ON(val >= (1 << code->width)); + /* If the high bit was set, it was encoding a negative */ + if (val >= (1 << (code->width - 1))) + return (int32_t)0 - (int32_t)(((u32)1 << code->width) - + val); + /* Otherwise, it was encoding a positive */ + return (int32_t)val; +} + +/* ---------------------- */ +/* Descriptors/cachelines */ +/* ---------------------- */ + +/* To avoid needless dynamic allocation, the driver API often gives the caller + * a "descriptor" type that the caller can instantiate however they like. + * Ultimately though, it is just a cacheline of binary storage (or something + * smaller when it is known that the descriptor doesn't need all 64 bytes) for + * holding pre-formatted pieces of hardware commands. The performance-critical + * code can then copy these descriptors directly into hardware command + * registers more efficiently than trying to construct/format commands + * on-the-fly. The API user sees the descriptor as an array of 32-bit words in + * order for the compiler to know its size, but the internal details are not + * exposed. The following macro is used within the driver for converting *any* + * descriptor pointer to a usable array pointer. The use of a macro (instead of + * an inline) is necessary to work with different descriptor types and to work + * correctly with const and non-const inputs (and similarly-qualified outputs). + */ +#define qb_cl(d) (&(d)->dont_manipulate_directly[0]) + +#endif /* __FSL_QBMAN_PORTAL_H */ --- /dev/null +++ b/drivers/staging/fsl-mc/bus/dpio/qbman_debug.c @@ -0,0 +1,853 @@ +/* Copyright (C) 2015 Freescale Semiconductor, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Freescale Semiconductor nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include + +#include "../../include/dpaa2-global.h" +#include "qbman-portal.h" +#include "qbman_debug.h" + +/* QBMan portal management command code */ +#define QBMAN_BP_QUERY 0x32 +#define QBMAN_FQ_QUERY 0x44 +#define QBMAN_FQ_QUERY_NP 0x45 +#define QBMAN_CGR_QUERY 0x51 +#define QBMAN_WRED_QUERY 0x54 +#define QBMAN_CGR_STAT_QUERY 0x55 +#define QBMAN_CGR_STAT_QUERY_CLR 0x56 + +enum qbman_attr_usage_e { + qbman_attr_usage_fq, + qbman_attr_usage_bpool, + qbman_attr_usage_cgr, +}; + +struct int_qbman_attr { + u32 words[32]; + enum qbman_attr_usage_e usage; +}; + +#define attr_type_set(a, e) \ +{ \ + struct qbman_attr *__attr = a; \ + enum qbman_attr_usage_e __usage = e; \ + ((struct int_qbman_attr *)__attr)->usage = __usage; \ +} + +#define ATTR32(d) (&(d)->dont_manipulate_directly[0]) +#define ATTR32_1(d) (&(d)->dont_manipulate_directly[16]) + +static struct qb_attr_code code_bp_bpid = QB_CODE(0, 16, 16); +static struct qb_attr_code code_bp_bdi = QB_CODE(1, 16, 1); +static struct qb_attr_code code_bp_va = QB_CODE(1, 17, 1); +static struct qb_attr_code code_bp_wae = QB_CODE(1, 18, 1); +static struct qb_attr_code code_bp_swdet = QB_CODE(4, 0, 16); +static struct qb_attr_code code_bp_swdxt = QB_CODE(4, 16, 16); +static struct qb_attr_code code_bp_hwdet = QB_CODE(5, 0, 16); +static struct qb_attr_code code_bp_hwdxt = QB_CODE(5, 16, 16); +static struct qb_attr_code code_bp_swset = QB_CODE(6, 0, 16); +static struct qb_attr_code code_bp_swsxt = QB_CODE(6, 16, 16); +static struct qb_attr_code code_bp_vbpid = QB_CODE(7, 0, 14); +static struct qb_attr_code code_bp_icid = QB_CODE(7, 16, 15); +static struct qb_attr_code code_bp_pl = QB_CODE(7, 31, 1); +static struct qb_attr_code code_bp_bpscn_addr_lo = QB_CODE(8, 0, 32); +static struct qb_attr_code code_bp_bpscn_addr_hi = QB_CODE(9, 0, 32); +static struct qb_attr_code code_bp_bpscn_ctx_lo = QB_CODE(10, 0, 32); +static struct qb_attr_code code_bp_bpscn_ctx_hi = QB_CODE(11, 0, 32); +static struct qb_attr_code code_bp_hw_targ = QB_CODE(12, 0, 16); +static struct qb_attr_code code_bp_state = QB_CODE(1, 24, 3); +static struct qb_attr_code code_bp_fill = QB_CODE(2, 0, 32); +static struct qb_attr_code code_bp_hdptr = QB_CODE(3, 0, 32); +static struct qb_attr_code code_bp_sdcnt = QB_CODE(13, 0, 8); +static struct qb_attr_code code_bp_hdcnt = QB_CODE(13, 1, 8); +static struct qb_attr_code code_bp_sscnt = QB_CODE(13, 2, 8); + +void qbman_bp_attr_clear(struct qbman_attr *a) +{ + memset(a, 0, sizeof(*a)); + attr_type_set(a, qbman_attr_usage_bpool); +} + +int qbman_bp_query(struct qbman_swp *s, u32 bpid, + struct qbman_attr *a) +{ + u32 *p; + u32 verb, rslt; + u32 *attr = ATTR32(a); + + qbman_bp_attr_clear(a); + + /* Start the management command */ + p = qbman_swp_mc_start(s); + if (!p) + return -EBUSY; + + /* Encode the caller-provided attributes */ + qb_attr_code_encode(&code_bp_bpid, p, bpid); + + /* Complete the management command */ + p = qbman_swp_mc_complete(s, p, QBMAN_BP_QUERY); + + /* Decode the outcome */ + verb = qb_attr_code_decode(&code_generic_verb, p); + rslt = qb_attr_code_decode(&code_generic_rslt, p); + WARN_ON(verb != QBMAN_BP_QUERY); + + /* Determine success or failure */ + if (unlikely(rslt != QBMAN_MC_RSLT_OK)) { + pr_err("Query of BPID 0x%x failed, code=0x%02x\n", bpid, rslt); + return -EIO; + } + + /* For the query, word[0] of the result contains only the + * verb/rslt fields, so skip word[0]. + */ + word_copy(&attr[1], &p[1], 15); + return 0; +} + +void qbman_bp_attr_get_bdi(struct qbman_attr *a, int *bdi, int *va, int *wae) +{ + u32 *p = ATTR32(a); + + *bdi = !!qb_attr_code_decode(&code_bp_bdi, p); + *va = !!qb_attr_code_decode(&code_bp_va, p); + *wae = !!qb_attr_code_decode(&code_bp_wae, p); +} + +static u32 qbman_bp_thresh_to_value(u32 val) +{ + return (val & 0xff) << ((val & 0xf00) >> 8); +} + +void qbman_bp_attr_get_swdet(struct qbman_attr *a, u32 *swdet) +{ + u32 *p = ATTR32(a); + + *swdet = qbman_bp_thresh_to_value(qb_attr_code_decode(&code_bp_swdet, + p)); +} + +void qbman_bp_attr_get_swdxt(struct qbman_attr *a, u32 *swdxt) +{ + u32 *p = ATTR32(a); + + *swdxt = qbman_bp_thresh_to_value(qb_attr_code_decode(&code_bp_swdxt, + p)); +} + +void qbman_bp_attr_get_hwdet(struct qbman_attr *a, u32 *hwdet) +{ + u32 *p = ATTR32(a); + + *hwdet = qbman_bp_thresh_to_value(qb_attr_code_decode(&code_bp_hwdet, + p)); +} + +void qbman_bp_attr_get_hwdxt(struct qbman_attr *a, u32 *hwdxt) +{ + u32 *p = ATTR32(a); + + *hwdxt = qbman_bp_thresh_to_value(qb_attr_code_decode(&code_bp_hwdxt, + p)); +} + +void qbman_bp_attr_get_swset(struct qbman_attr *a, u32 *swset) +{ + u32 *p = ATTR32(a); + + *swset = qbman_bp_thresh_to_value(qb_attr_code_decode(&code_bp_swset, + p)); +} + +void qbman_bp_attr_get_swsxt(struct qbman_attr *a, u32 *swsxt) +{ + u32 *p = ATTR32(a); + + *swsxt = qbman_bp_thresh_to_value(qb_attr_code_decode(&code_bp_swsxt, + p)); +} + +void qbman_bp_attr_get_vbpid(struct qbman_attr *a, u32 *vbpid) +{ + u32 *p = ATTR32(a); + + *vbpid = qb_attr_code_decode(&code_bp_vbpid, p); +} + +void qbman_bp_attr_get_icid(struct qbman_attr *a, u32 *icid, int *pl) +{ + u32 *p = ATTR32(a); + + *icid = qb_attr_code_decode(&code_bp_icid, p); + *pl = !!qb_attr_code_decode(&code_bp_pl, p); +} + +void qbman_bp_attr_get_bpscn_addr(struct qbman_attr *a, u64 *bpscn_addr) +{ + u32 *p = ATTR32(a); + + *bpscn_addr = ((u64)qb_attr_code_decode(&code_bp_bpscn_addr_hi, + p) << 32) | + (u64)qb_attr_code_decode(&code_bp_bpscn_addr_lo, + p); +} + +void qbman_bp_attr_get_bpscn_ctx(struct qbman_attr *a, u64 *bpscn_ctx) +{ + u32 *p = ATTR32(a); + + *bpscn_ctx = ((u64)qb_attr_code_decode(&code_bp_bpscn_ctx_hi, p) + << 32) | + (u64)qb_attr_code_decode(&code_bp_bpscn_ctx_lo, + p); +} + +void qbman_bp_attr_get_hw_targ(struct qbman_attr *a, u32 *hw_targ) +{ + u32 *p = ATTR32(a); + + *hw_targ = qb_attr_code_decode(&code_bp_hw_targ, p); +} + +int qbman_bp_info_has_free_bufs(struct qbman_attr *a) +{ + u32 *p = ATTR32(a); + + return !(int)(qb_attr_code_decode(&code_bp_state, p) & 0x1); +} + +int qbman_bp_info_is_depleted(struct qbman_attr *a) +{ + u32 *p = ATTR32(a); + + return (int)(qb_attr_code_decode(&code_bp_state, p) & 0x2); +} + +int qbman_bp_info_is_surplus(struct qbman_attr *a) +{ + u32 *p = ATTR32(a); + + return (int)(qb_attr_code_decode(&code_bp_state, p) & 0x4); +} + +u32 qbman_bp_info_num_free_bufs(struct qbman_attr *a) +{ + u32 *p = ATTR32(a); + + return qb_attr_code_decode(&code_bp_fill, p); +} + +u32 qbman_bp_info_hdptr(struct qbman_attr *a) +{ + u32 *p = ATTR32(a); + + return qb_attr_code_decode(&code_bp_hdptr, p); +} + +u32 qbman_bp_info_sdcnt(struct qbman_attr *a) +{ + u32 *p = ATTR32(a); + + return qb_attr_code_decode(&code_bp_sdcnt, p); +} + +u32 qbman_bp_info_hdcnt(struct qbman_attr *a) +{ + u32 *p = ATTR32(a); + + return qb_attr_code_decode(&code_bp_hdcnt, p); +} + +u32 qbman_bp_info_sscnt(struct qbman_attr *a) +{ + u32 *p = ATTR32(a); + + return qb_attr_code_decode(&code_bp_sscnt, p); +} + +static struct qb_attr_code code_fq_fqid = QB_CODE(1, 0, 24); +static struct qb_attr_code code_fq_cgrid = QB_CODE(2, 16, 16); +static struct qb_attr_code code_fq_destwq = QB_CODE(3, 0, 15); +static struct qb_attr_code code_fq_fqctrl = QB_CODE(3, 24, 8); +static struct qb_attr_code code_fq_icscred = QB_CODE(4, 0, 15); +static struct qb_attr_code code_fq_tdthresh = QB_CODE(4, 16, 13); +static struct qb_attr_code code_fq_oa_len = QB_CODE(5, 0, 12); +static struct qb_attr_code code_fq_oa_ics = QB_CODE(5, 14, 1); +static struct qb_attr_code code_fq_oa_cgr = QB_CODE(5, 15, 1); +static struct qb_attr_code code_fq_mctl_bdi = QB_CODE(5, 24, 1); +static struct qb_attr_code code_fq_mctl_ff = QB_CODE(5, 25, 1); +static struct qb_attr_code code_fq_mctl_va = QB_CODE(5, 26, 1); +static struct qb_attr_code code_fq_mctl_ps = QB_CODE(5, 27, 1); +static struct qb_attr_code code_fq_ctx_lower32 = QB_CODE(6, 0, 32); +static struct qb_attr_code code_fq_ctx_upper32 = QB_CODE(7, 0, 32); +static struct qb_attr_code code_fq_icid = QB_CODE(8, 0, 15); +static struct qb_attr_code code_fq_pl = QB_CODE(8, 15, 1); +static struct qb_attr_code code_fq_vfqid = QB_CODE(9, 0, 24); +static struct qb_attr_code code_fq_erfqid = QB_CODE(10, 0, 24); + +void qbman_fq_attr_clear(struct qbman_attr *a) +{ + memset(a, 0, sizeof(*a)); + attr_type_set(a, qbman_attr_usage_fq); +} + +/* FQ query function for programmable fields */ +int qbman_fq_query(struct qbman_swp *s, u32 fqid, struct qbman_attr *desc) +{ + u32 *p; + u32 verb, rslt; + u32 *d = ATTR32(desc); + + qbman_fq_attr_clear(desc); + + p = qbman_swp_mc_start(s); + if (!p) + return -EBUSY; + qb_attr_code_encode(&code_fq_fqid, p, fqid); + p = qbman_swp_mc_complete(s, p, QBMAN_FQ_QUERY); + + /* Decode the outcome */ + verb = qb_attr_code_decode(&code_generic_verb, p); + rslt = qb_attr_code_decode(&code_generic_rslt, p); + WARN_ON(verb != QBMAN_FQ_QUERY); + + /* Determine success or failure */ + if (unlikely(rslt != QBMAN_MC_RSLT_OK)) { + pr_err("Query of FQID 0x%x failed, code=0x%02x\n", + fqid, rslt); + return -EIO; + } + /* + * For the configure, word[0] of the command contains only the WE-mask. + * For the query, word[0] of the result contains only the verb/rslt + * fields. Skip word[0] in the latter case. + */ + word_copy(&d[1], &p[1], 15); + return 0; +} + +void qbman_fq_attr_get_fqctrl(struct qbman_attr *d, u32 *fqctrl) +{ + u32 *p = ATTR32(d); + + *fqctrl = qb_attr_code_decode(&code_fq_fqctrl, p); +} + +void qbman_fq_attr_get_cgrid(struct qbman_attr *d, u32 *cgrid) +{ + u32 *p = ATTR32(d); + + *cgrid = qb_attr_code_decode(&code_fq_cgrid, p); +} + +void qbman_fq_attr_get_destwq(struct qbman_attr *d, u32 *destwq) +{ + u32 *p = ATTR32(d); + + *destwq = qb_attr_code_decode(&code_fq_destwq, p); +} + +void qbman_fq_attr_get_icscred(struct qbman_attr *d, u32 *icscred) +{ + u32 *p = ATTR32(d); + + *icscred = qb_attr_code_decode(&code_fq_icscred, p); +} + +static struct qb_attr_code code_tdthresh_exp = QB_CODE(0, 0, 5); +static struct qb_attr_code code_tdthresh_mant = QB_CODE(0, 5, 8); +static u32 qbman_thresh_to_value(u32 val) +{ + u32 m, e; + + m = qb_attr_code_decode(&code_tdthresh_mant, &val); + e = qb_attr_code_decode(&code_tdthresh_exp, &val); + return m << e; +} + +void qbman_fq_attr_get_tdthresh(struct qbman_attr *d, u32 *tdthresh) +{ + u32 *p = ATTR32(d); + + *tdthresh = qbman_thresh_to_value(qb_attr_code_decode(&code_fq_tdthresh, + p)); +} + +void qbman_fq_attr_get_oa(struct qbman_attr *d, + int *oa_ics, int *oa_cgr, int32_t *oa_len) +{ + u32 *p = ATTR32(d); + + *oa_ics = !!qb_attr_code_decode(&code_fq_oa_ics, p); + *oa_cgr = !!qb_attr_code_decode(&code_fq_oa_cgr, p); + *oa_len = qb_attr_code_makesigned(&code_fq_oa_len, + qb_attr_code_decode(&code_fq_oa_len, p)); +} + +void qbman_fq_attr_get_mctl(struct qbman_attr *d, + int *bdi, int *ff, int *va, int *ps) +{ + u32 *p = ATTR32(d); + + *bdi = !!qb_attr_code_decode(&code_fq_mctl_bdi, p); + *ff = !!qb_attr_code_decode(&code_fq_mctl_ff, p); + *va = !!qb_attr_code_decode(&code_fq_mctl_va, p); + *ps = !!qb_attr_code_decode(&code_fq_mctl_ps, p); +} + +void qbman_fq_attr_get_ctx(struct qbman_attr *d, u32 *hi, u32 *lo) +{ + u32 *p = ATTR32(d); + + *hi = qb_attr_code_decode(&code_fq_ctx_upper32, p); + *lo = qb_attr_code_decode(&code_fq_ctx_lower32, p); +} + +void qbman_fq_attr_get_icid(struct qbman_attr *d, u32 *icid, int *pl) +{ + u32 *p = ATTR32(d); + + *icid = qb_attr_code_decode(&code_fq_icid, p); + *pl = !!qb_attr_code_decode(&code_fq_pl, p); +} + +void qbman_fq_attr_get_vfqid(struct qbman_attr *d, u32 *vfqid) +{ + u32 *p = ATTR32(d); + + *vfqid = qb_attr_code_decode(&code_fq_vfqid, p); +} + +void qbman_fq_attr_get_erfqid(struct qbman_attr *d, u32 *erfqid) +{ + u32 *p = ATTR32(d); + + *erfqid = qb_attr_code_decode(&code_fq_erfqid, p); +} + +/* Query FQ Non-Programmalbe Fields */ +static struct qb_attr_code code_fq_np_state = QB_CODE(0, 16, 3); +static struct qb_attr_code code_fq_np_fe = QB_CODE(0, 19, 1); +static struct qb_attr_code code_fq_np_x = QB_CODE(0, 20, 1); +static struct qb_attr_code code_fq_np_r = QB_CODE(0, 21, 1); +static struct qb_attr_code code_fq_np_oe = QB_CODE(0, 22, 1); +static struct qb_attr_code code_fq_np_frm_cnt = QB_CODE(6, 0, 24); +static struct qb_attr_code code_fq_np_byte_cnt = QB_CODE(7, 0, 32); + +int qbman_fq_query_state(struct qbman_swp *s, u32 fqid, + struct qbman_attr *state) +{ + u32 *p; + u32 verb, rslt; + u32 *d = ATTR32(state); + + qbman_fq_attr_clear(state); + + p = qbman_swp_mc_start(s); + if (!p) + return -EBUSY; + qb_attr_code_encode(&code_fq_fqid, p, fqid); + p = qbman_swp_mc_complete(s, p, QBMAN_FQ_QUERY_NP); + + /* Decode the outcome */ + verb = qb_attr_code_decode(&code_generic_verb, p); + rslt = qb_attr_code_decode(&code_generic_rslt, p); + WARN_ON(verb != QBMAN_FQ_QUERY_NP); + + /* Determine success or failure */ + if (unlikely(rslt != QBMAN_MC_RSLT_OK)) { + pr_err("Query NP fields of FQID 0x%x failed, code=0x%02x\n", + fqid, rslt); + return -EIO; + } + word_copy(&d[0], &p[0], 16); + return 0; +} + +u32 qbman_fq_state_schedstate(const struct qbman_attr *state) +{ + const u32 *p = ATTR32(state); + + return qb_attr_code_decode(&code_fq_np_state, p); +} + +int qbman_fq_state_force_eligible(const struct qbman_attr *state) +{ + const u32 *p = ATTR32(state); + + return !!qb_attr_code_decode(&code_fq_np_fe, p); +} + +int qbman_fq_state_xoff(const struct qbman_attr *state) +{ + const u32 *p = ATTR32(state); + + return !!qb_attr_code_decode(&code_fq_np_x, p); +} + +int qbman_fq_state_retirement_pending(const struct qbman_attr *state) +{ + const u32 *p = ATTR32(state); + + return !!qb_attr_code_decode(&code_fq_np_r, p); +} + +int qbman_fq_state_overflow_error(const struct qbman_attr *state) +{ + const u32 *p = ATTR32(state); + + return !!qb_attr_code_decode(&code_fq_np_oe, p); +} + +u32 qbman_fq_state_frame_count(const struct qbman_attr *state) +{ + const u32 *p = ATTR32(state); + + return qb_attr_code_decode(&code_fq_np_frm_cnt, p); +} + +u32 qbman_fq_state_byte_count(const struct qbman_attr *state) +{ + const u32 *p = ATTR32(state); + + return qb_attr_code_decode(&code_fq_np_byte_cnt, p); +} + +/* Query CGR */ +static struct qb_attr_code code_cgr_cgid = QB_CODE(0, 16, 16); +static struct qb_attr_code code_cgr_cscn_wq_en_enter = QB_CODE(2, 0, 1); +static struct qb_attr_code code_cgr_cscn_wq_en_exit = QB_CODE(2, 1, 1); +static struct qb_attr_code code_cgr_cscn_wq_icd = QB_CODE(2, 2, 1); +static struct qb_attr_code code_cgr_mode = QB_CODE(3, 16, 2); +static struct qb_attr_code code_cgr_rej_cnt_mode = QB_CODE(3, 18, 1); +static struct qb_attr_code code_cgr_cscn_bdi = QB_CODE(3, 19, 1); +static struct qb_attr_code code_cgr_cscn_wr_en_enter = QB_CODE(3, 24, 1); +static struct qb_attr_code code_cgr_cscn_wr_en_exit = QB_CODE(3, 25, 1); +static struct qb_attr_code code_cgr_cg_wr_ae = QB_CODE(3, 26, 1); +static struct qb_attr_code code_cgr_cscn_dcp_en = QB_CODE(3, 27, 1); +static struct qb_attr_code code_cgr_cg_wr_va = QB_CODE(3, 28, 1); +static struct qb_attr_code code_cgr_i_cnt_wr_en = QB_CODE(4, 0, 1); +static struct qb_attr_code code_cgr_i_cnt_wr_bnd = QB_CODE(4, 1, 5); +static struct qb_attr_code code_cgr_td_en = QB_CODE(4, 8, 1); +static struct qb_attr_code code_cgr_cs_thres = QB_CODE(4, 16, 13); +static struct qb_attr_code code_cgr_cs_thres_x = QB_CODE(5, 0, 13); +static struct qb_attr_code code_cgr_td_thres = QB_CODE(5, 16, 13); +static struct qb_attr_code code_cgr_cscn_tdcp = QB_CODE(6, 0, 16); +static struct qb_attr_code code_cgr_cscn_wqid = QB_CODE(6, 16, 16); +static struct qb_attr_code code_cgr_cscn_vcgid = QB_CODE(7, 0, 16); +static struct qb_attr_code code_cgr_cg_icid = QB_CODE(7, 16, 15); +static struct qb_attr_code code_cgr_cg_pl = QB_CODE(7, 31, 1); +static struct qb_attr_code code_cgr_cg_wr_addr_lo = QB_CODE(8, 0, 32); +static struct qb_attr_code code_cgr_cg_wr_addr_hi = QB_CODE(9, 0, 32); +static struct qb_attr_code code_cgr_cscn_ctx_lo = QB_CODE(10, 0, 32); +static struct qb_attr_code code_cgr_cscn_ctx_hi = QB_CODE(11, 0, 32); + +void qbman_cgr_attr_clear(struct qbman_attr *a) +{ + memset(a, 0, sizeof(*a)); + attr_type_set(a, qbman_attr_usage_cgr); +} + +int qbman_cgr_query(struct qbman_swp *s, u32 cgid, struct qbman_attr *attr) +{ + u32 *p; + u32 verb, rslt; + u32 *d[2]; + int i; + u32 query_verb; + + d[0] = ATTR32(attr); + d[1] = ATTR32_1(attr); + + qbman_cgr_attr_clear(attr); + + for (i = 0; i < 2; i++) { + p = qbman_swp_mc_start(s); + if (!p) + return -EBUSY; + query_verb = i ? QBMAN_WRED_QUERY : QBMAN_CGR_QUERY; + + qb_attr_code_encode(&code_cgr_cgid, p, cgid); + p = qbman_swp_mc_complete(s, p, p[0] | query_verb); + + /* Decode the outcome */ + verb = qb_attr_code_decode(&code_generic_verb, p); + rslt = qb_attr_code_decode(&code_generic_rslt, p); + WARN_ON(verb != query_verb); + + /* Determine success or failure */ + if (unlikely(rslt != QBMAN_MC_RSLT_OK)) { + pr_err("Query CGID 0x%x failed,", cgid); + pr_err(" verb=0x%02x, code=0x%02x\n", verb, rslt); + return -EIO; + } + /* For the configure, word[0] of the command contains only the + * verb/cgid. For the query, word[0] of the result contains + * only the verb/rslt fields. Skip word[0] in the latter case. + */ + word_copy(&d[i][1], &p[1], 15); + } + return 0; +} + +void qbman_cgr_attr_get_ctl1(struct qbman_attr *d, int *cscn_wq_en_enter, + int *cscn_wq_en_exit, int *cscn_wq_icd) + { + u32 *p = ATTR32(d); + *cscn_wq_en_enter = !!qb_attr_code_decode(&code_cgr_cscn_wq_en_enter, + p); + *cscn_wq_en_exit = !!qb_attr_code_decode(&code_cgr_cscn_wq_en_exit, p); + *cscn_wq_icd = !!qb_attr_code_decode(&code_cgr_cscn_wq_icd, p); +} + +void qbman_cgr_attr_get_mode(struct qbman_attr *d, u32 *mode, + int *rej_cnt_mode, int *cscn_bdi) +{ + u32 *p = ATTR32(d); + *mode = qb_attr_code_decode(&code_cgr_mode, p); + *rej_cnt_mode = !!qb_attr_code_decode(&code_cgr_rej_cnt_mode, p); + *cscn_bdi = !!qb_attr_code_decode(&code_cgr_cscn_bdi, p); +} + +void qbman_cgr_attr_get_ctl2(struct qbman_attr *d, int *cscn_wr_en_enter, + int *cscn_wr_en_exit, int *cg_wr_ae, + int *cscn_dcp_en, int *cg_wr_va) +{ + u32 *p = ATTR32(d); + *cscn_wr_en_enter = !!qb_attr_code_decode(&code_cgr_cscn_wr_en_enter, + p); + *cscn_wr_en_exit = !!qb_attr_code_decode(&code_cgr_cscn_wr_en_exit, p); + *cg_wr_ae = !!qb_attr_code_decode(&code_cgr_cg_wr_ae, p); + *cscn_dcp_en = !!qb_attr_code_decode(&code_cgr_cscn_dcp_en, p); + *cg_wr_va = !!qb_attr_code_decode(&code_cgr_cg_wr_va, p); +} + +void qbman_cgr_attr_get_iwc(struct qbman_attr *d, int *i_cnt_wr_en, + u32 *i_cnt_wr_bnd) +{ + u32 *p = ATTR32(d); + *i_cnt_wr_en = !!qb_attr_code_decode(&code_cgr_i_cnt_wr_en, p); + *i_cnt_wr_bnd = qb_attr_code_decode(&code_cgr_i_cnt_wr_bnd, p); +} + +void qbman_cgr_attr_get_tdc(struct qbman_attr *d, int *td_en) +{ + u32 *p = ATTR32(d); + *td_en = !!qb_attr_code_decode(&code_cgr_td_en, p); +} + +void qbman_cgr_attr_get_cs_thres(struct qbman_attr *d, u32 *cs_thres) +{ + u32 *p = ATTR32(d); + *cs_thres = qbman_thresh_to_value(qb_attr_code_decode( + &code_cgr_cs_thres, p)); +} + +void qbman_cgr_attr_get_cs_thres_x(struct qbman_attr *d, + u32 *cs_thres_x) +{ + u32 *p = ATTR32(d); + *cs_thres_x = qbman_thresh_to_value(qb_attr_code_decode( + &code_cgr_cs_thres_x, p)); +} + +void qbman_cgr_attr_get_td_thres(struct qbman_attr *d, u32 *td_thres) +{ + u32 *p = ATTR32(d); + *td_thres = qbman_thresh_to_value(qb_attr_code_decode( + &code_cgr_td_thres, p)); +} + +void qbman_cgr_attr_get_cscn_tdcp(struct qbman_attr *d, u32 *cscn_tdcp) +{ + u32 *p = ATTR32(d); + *cscn_tdcp = qb_attr_code_decode(&code_cgr_cscn_tdcp, p); +} + +void qbman_cgr_attr_get_cscn_wqid(struct qbman_attr *d, u32 *cscn_wqid) +{ + u32 *p = ATTR32(d); + *cscn_wqid = qb_attr_code_decode(&code_cgr_cscn_wqid, p); +} + +void qbman_cgr_attr_get_cscn_vcgid(struct qbman_attr *d, + u32 *cscn_vcgid) +{ + u32 *p = ATTR32(d); + *cscn_vcgid = qb_attr_code_decode(&code_cgr_cscn_vcgid, p); +} + +void qbman_cgr_attr_get_cg_icid(struct qbman_attr *d, u32 *icid, + int *pl) +{ + u32 *p = ATTR32(d); + *icid = qb_attr_code_decode(&code_cgr_cg_icid, p); + *pl = !!qb_attr_code_decode(&code_cgr_cg_pl, p); +} + +void qbman_cgr_attr_get_cg_wr_addr(struct qbman_attr *d, + u64 *cg_wr_addr) +{ + u32 *p = ATTR32(d); + *cg_wr_addr = ((u64)qb_attr_code_decode(&code_cgr_cg_wr_addr_hi, + p) << 32) | + (u64)qb_attr_code_decode(&code_cgr_cg_wr_addr_lo, + p); +} + +void qbman_cgr_attr_get_cscn_ctx(struct qbman_attr *d, u64 *cscn_ctx) +{ + u32 *p = ATTR32(d); + *cscn_ctx = ((u64)qb_attr_code_decode(&code_cgr_cscn_ctx_hi, p) + << 32) | + (u64)qb_attr_code_decode(&code_cgr_cscn_ctx_lo, p); +} + +#define WRED_EDP_WORD(n) (18 + (n) / 4) +#define WRED_EDP_OFFSET(n) (8 * ((n) % 4)) +#define WRED_PARM_DP_WORD(n) ((n) + 20) +#define WRED_WE_EDP(n) (16 + (n) * 2) +#define WRED_WE_PARM_DP(n) (17 + (n) * 2) +void qbman_cgr_attr_wred_get_edp(struct qbman_attr *d, u32 idx, + int *edp) +{ + u32 *p = ATTR32(d); + struct qb_attr_code code_wred_edp = QB_CODE(WRED_EDP_WORD(idx), + WRED_EDP_OFFSET(idx), 8); + *edp = (int)qb_attr_code_decode(&code_wred_edp, p); +} + +void qbman_cgr_attr_wred_dp_decompose(u32 dp, u64 *minth, + u64 *maxth, u8 *maxp) +{ + u8 ma, mn, step_i, step_s, pn; + + ma = (u8)(dp >> 24); + mn = (u8)(dp >> 19) & 0x1f; + step_i = (u8)(dp >> 11); + step_s = (u8)(dp >> 6) & 0x1f; + pn = (u8)dp & 0x3f; + + *maxp = ((pn << 2) * 100) / 256; + + if (mn == 0) + *maxth = ma; + else + *maxth = ((ma + 256) * (1 << (mn - 1))); + + if (step_s == 0) + *minth = *maxth - step_i; + else + *minth = *maxth - (256 + step_i) * (1 << (step_s - 1)); +} + +void qbman_cgr_attr_wred_get_parm_dp(struct qbman_attr *d, u32 idx, + u32 *dp) +{ + u32 *p = ATTR32(d); + struct qb_attr_code code_wred_parm_dp = QB_CODE(WRED_PARM_DP_WORD(idx), + 0, 8); + *dp = qb_attr_code_decode(&code_wred_parm_dp, p); +} + +/* Query CGR/CCGR/CQ statistics */ +static struct qb_attr_code code_cgr_stat_ct = QB_CODE(4, 0, 32); +static struct qb_attr_code code_cgr_stat_frame_cnt_lo = QB_CODE(4, 0, 32); +static struct qb_attr_code code_cgr_stat_frame_cnt_hi = QB_CODE(5, 0, 8); +static struct qb_attr_code code_cgr_stat_byte_cnt_lo = QB_CODE(6, 0, 32); +static struct qb_attr_code code_cgr_stat_byte_cnt_hi = QB_CODE(7, 0, 16); +static int qbman_cgr_statistics_query(struct qbman_swp *s, u32 cgid, + int clear, u32 command_type, + u64 *frame_cnt, u64 *byte_cnt) +{ + u32 *p; + u32 verb, rslt; + u32 query_verb; + u32 hi, lo; + + p = qbman_swp_mc_start(s); + if (!p) + return -EBUSY; + + qb_attr_code_encode(&code_cgr_cgid, p, cgid); + if (command_type < 2) + qb_attr_code_encode(&code_cgr_stat_ct, p, command_type); + query_verb = clear ? + QBMAN_CGR_STAT_QUERY_CLR : QBMAN_CGR_STAT_QUERY; + p = qbman_swp_mc_complete(s, p, p[0] | query_verb); + + /* Decode the outcome */ + verb = qb_attr_code_decode(&code_generic_verb, p); + rslt = qb_attr_code_decode(&code_generic_rslt, p); + WARN_ON(verb != query_verb); + + /* Determine success or failure */ + if (unlikely(rslt != QBMAN_MC_RSLT_OK)) { + pr_err("Query statistics of CGID 0x%x failed,", cgid); + pr_err(" verb=0x%02x code=0x%02x\n", verb, rslt); + return -EIO; + } + + if (*frame_cnt) { + hi = qb_attr_code_decode(&code_cgr_stat_frame_cnt_hi, p); + lo = qb_attr_code_decode(&code_cgr_stat_frame_cnt_lo, p); + *frame_cnt = ((u64)hi << 32) | (u64)lo; + } + if (*byte_cnt) { + hi = qb_attr_code_decode(&code_cgr_stat_byte_cnt_hi, p); + lo = qb_attr_code_decode(&code_cgr_stat_byte_cnt_lo, p); + *byte_cnt = ((u64)hi << 32) | (u64)lo; + } + + return 0; +} + +int qbman_cgr_reject_statistics(struct qbman_swp *s, u32 cgid, int clear, + u64 *frame_cnt, u64 *byte_cnt) +{ + return qbman_cgr_statistics_query(s, cgid, clear, 0xff, + frame_cnt, byte_cnt); +} + +int qbman_ccgr_reject_statistics(struct qbman_swp *s, u32 cgid, int clear, + u64 *frame_cnt, u64 *byte_cnt) +{ + return qbman_cgr_statistics_query(s, cgid, clear, 1, + frame_cnt, byte_cnt); +} + +int qbman_cq_dequeue_statistics(struct qbman_swp *s, u32 cgid, int clear, + u64 *frame_cnt, u64 *byte_cnt) +{ + return qbman_cgr_statistics_query(s, cgid, clear, 0, + frame_cnt, byte_cnt); +} --- /dev/null +++ b/drivers/staging/fsl-mc/bus/dpio/qbman_debug.h @@ -0,0 +1,136 @@ +/* Copyright (C) 2015 Freescale Semiconductor, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Freescale Semiconductor nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +struct qbman_attr { + u32 dont_manipulate_directly[40]; +}; + +/* Buffer pool query commands */ +int qbman_bp_query(struct qbman_swp *s, u32 bpid, + struct qbman_attr *a); +void qbman_bp_attr_get_bdi(struct qbman_attr *a, int *bdi, int *va, int *wae); +void qbman_bp_attr_get_swdet(struct qbman_attr *a, u32 *swdet); +void qbman_bp_attr_get_swdxt(struct qbman_attr *a, u32 *swdxt); +void qbman_bp_attr_get_hwdet(struct qbman_attr *a, u32 *hwdet); +void qbman_bp_attr_get_hwdxt(struct qbman_attr *a, u32 *hwdxt); +void qbman_bp_attr_get_swset(struct qbman_attr *a, u32 *swset); +void qbman_bp_attr_get_swsxt(struct qbman_attr *a, u32 *swsxt); +void qbman_bp_attr_get_vbpid(struct qbman_attr *a, u32 *vbpid); +void qbman_bp_attr_get_icid(struct qbman_attr *a, u32 *icid, int *pl); +void qbman_bp_attr_get_bpscn_addr(struct qbman_attr *a, u64 *bpscn_addr); +void qbman_bp_attr_get_bpscn_ctx(struct qbman_attr *a, u64 *bpscn_ctx); +void qbman_bp_attr_get_hw_targ(struct qbman_attr *a, u32 *hw_targ); +int qbman_bp_info_has_free_bufs(struct qbman_attr *a); +int qbman_bp_info_is_depleted(struct qbman_attr *a); +int qbman_bp_info_is_surplus(struct qbman_attr *a); +u32 qbman_bp_info_num_free_bufs(struct qbman_attr *a); +u32 qbman_bp_info_hdptr(struct qbman_attr *a); +u32 qbman_bp_info_sdcnt(struct qbman_attr *a); +u32 qbman_bp_info_hdcnt(struct qbman_attr *a); +u32 qbman_bp_info_sscnt(struct qbman_attr *a); + +/* FQ query function for programmable fields */ +int qbman_fq_query(struct qbman_swp *s, u32 fqid, + struct qbman_attr *desc); +void qbman_fq_attr_get_fqctrl(struct qbman_attr *d, u32 *fqctrl); +void qbman_fq_attr_get_cgrid(struct qbman_attr *d, u32 *cgrid); +void qbman_fq_attr_get_destwq(struct qbman_attr *d, u32 *destwq); +void qbman_fq_attr_get_icscred(struct qbman_attr *d, u32 *icscred); +void qbman_fq_attr_get_tdthresh(struct qbman_attr *d, u32 *tdthresh); +void qbman_fq_attr_get_oa(struct qbman_attr *d, + int *oa_ics, int *oa_cgr, int32_t *oa_len); +void qbman_fq_attr_get_mctl(struct qbman_attr *d, + int *bdi, int *ff, int *va, int *ps); +void qbman_fq_attr_get_ctx(struct qbman_attr *d, u32 *hi, u32 *lo); +void qbman_fq_attr_get_icid(struct qbman_attr *d, u32 *icid, int *pl); +void qbman_fq_attr_get_vfqid(struct qbman_attr *d, u32 *vfqid); +void qbman_fq_attr_get_erfqid(struct qbman_attr *d, u32 *erfqid); + +/* FQ query command for non-programmable fields*/ +enum qbman_fq_schedstate_e { + qbman_fq_schedstate_oos = 0, + qbman_fq_schedstate_retired, + qbman_fq_schedstate_tentatively_scheduled, + qbman_fq_schedstate_truly_scheduled, + qbman_fq_schedstate_parked, + qbman_fq_schedstate_held_active, +}; + +int qbman_fq_query_state(struct qbman_swp *s, u32 fqid, + struct qbman_attr *state); +u32 qbman_fq_state_schedstate(const struct qbman_attr *state); +int qbman_fq_state_force_eligible(const struct qbman_attr *state); +int qbman_fq_state_xoff(const struct qbman_attr *state); +int qbman_fq_state_retirement_pending(const struct qbman_attr *state); +int qbman_fq_state_overflow_error(const struct qbman_attr *state); +u32 qbman_fq_state_frame_count(const struct qbman_attr *state); +u32 qbman_fq_state_byte_count(const struct qbman_attr *state); + +/* CGR query */ +int qbman_cgr_query(struct qbman_swp *s, u32 cgid, + struct qbman_attr *attr); +void qbman_cgr_attr_get_ctl1(struct qbman_attr *d, int *cscn_wq_en_enter, + int *cscn_wq_en_exit, int *cscn_wq_icd); +void qbman_cgr_attr_get_mode(struct qbman_attr *d, u32 *mode, + int *rej_cnt_mode, int *cscn_bdi); +void qbman_cgr_attr_get_ctl2(struct qbman_attr *d, int *cscn_wr_en_enter, + int *cscn_wr_en_exit, int *cg_wr_ae, + int *cscn_dcp_en, int *cg_wr_va); +void qbman_cgr_attr_get_iwc(struct qbman_attr *d, int *i_cnt_wr_en, + u32 *i_cnt_wr_bnd); +void qbman_cgr_attr_get_tdc(struct qbman_attr *d, int *td_en); +void qbman_cgr_attr_get_cs_thres(struct qbman_attr *d, u32 *cs_thres); +void qbman_cgr_attr_get_cs_thres_x(struct qbman_attr *d, + u32 *cs_thres_x); +void qbman_cgr_attr_get_td_thres(struct qbman_attr *d, u32 *td_thres); +void qbman_cgr_attr_get_cscn_tdcp(struct qbman_attr *d, u32 *cscn_tdcp); +void qbman_cgr_attr_get_cscn_wqid(struct qbman_attr *d, u32 *cscn_wqid); +void qbman_cgr_attr_get_cscn_vcgid(struct qbman_attr *d, + u32 *cscn_vcgid); +void qbman_cgr_attr_get_cg_icid(struct qbman_attr *d, u32 *icid, + int *pl); +void qbman_cgr_attr_get_cg_wr_addr(struct qbman_attr *d, + u64 *cg_wr_addr); +void qbman_cgr_attr_get_cscn_ctx(struct qbman_attr *d, u64 *cscn_ctx); +void qbman_cgr_attr_wred_get_edp(struct qbman_attr *d, u32 idx, + int *edp); +void qbman_cgr_attr_wred_dp_decompose(u32 dp, u64 *minth, + u64 *maxth, u8 *maxp); +void qbman_cgr_attr_wred_get_parm_dp(struct qbman_attr *d, u32 idx, + u32 *dp); + +/* CGR/CCGR/CQ statistics query */ +int qbman_cgr_reject_statistics(struct qbman_swp *s, u32 cgid, int clear, + u64 *frame_cnt, u64 *byte_cnt); +int qbman_ccgr_reject_statistics(struct qbman_swp *s, u32 cgid, int clear, + u64 *frame_cnt, u64 *byte_cnt); +int qbman_cq_dequeue_statistics(struct qbman_swp *s, u32 cgid, int clear, + u64 *frame_cnt, u64 *byte_cnt); --- /dev/null +++ b/drivers/staging/fsl-mc/bus/dpio/qbman_private.h @@ -0,0 +1,171 @@ +/* Copyright (C) 2014 Freescale Semiconductor, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Freescale Semiconductor nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/* Perform extra checking */ +#define QBMAN_CHECKING + +/* To maximise the amount of logic that is common between the Linux driver and + * other targets (such as the embedded MC firmware), we pivot here between the + * inclusion of two platform-specific headers. + * + * The first, qbman_sys_decl.h, includes any and all required system headers as + * well as providing any definitions for the purposes of compatibility. The + * second, qbman_sys.h, is where platform-specific routines go. + * + * The point of the split is that the platform-independent code (including this + * header) may depend on platform-specific declarations, yet other + * platform-specific routines may depend on platform-independent definitions. + */ + +#define QMAN_REV_4000 0x04000000 +#define QMAN_REV_4100 0x04010000 +#define QMAN_REV_4101 0x04010001 + +/* When things go wrong, it is a convenient trick to insert a few FOO() + * statements in the code to trace progress. TODO: remove this once we are + * hacking the code less actively. + */ +#define FOO() fsl_os_print("FOO: %s:%d\n", __FILE__, __LINE__) + +/* Any time there is a register interface which we poll on, this provides a + * "break after x iterations" scheme for it. It's handy for debugging, eg. + * where you don't want millions of lines of log output from a polling loop + * that won't, because such things tend to drown out the earlier log output + * that might explain what caused the problem. (NB: put ";" after each macro!) + * TODO: we should probably remove this once we're done sanitising the + * simulator... + */ +#define DBG_POLL_START(loopvar) (loopvar = 1000) +#define DBG_POLL_CHECK(loopvar) \ + do {if (!((loopvar)--)) WARN_ON(1); } while (0) + +/* For CCSR or portal-CINH registers that contain fields at arbitrary offsets + * and widths, these macro-generated encode/decode/isolate/remove inlines can + * be used. + * + * Eg. to "d"ecode a 14-bit field out of a register (into a "u16" type), + * where the field is located 3 bits "up" from the least-significant bit of the + * register (ie. the field location within the 32-bit register corresponds to a + * mask of 0x0001fff8), you would do; + * u16 field = d32_u16(3, 14, reg_value); + * + * Or to "e"ncode a 1-bit boolean value (input type is "int", zero is FALSE, + * non-zero is TRUE, so must convert all non-zero inputs to 1, hence the "!!" + * operator) into a register at bit location 0x00080000 (19 bits "in" from the + * LS bit), do; + * reg_value |= e32_int(19, 1, !!field); + * + * If you wish to read-modify-write a register, such that you leave the 14-bit + * field as-is but have all other fields set to zero, then "i"solate the 14-bit + * value using; + * reg_value = i32_u16(3, 14, reg_value); + * + * Alternatively, you could "r"emove the 1-bit boolean field (setting it to + * zero) but leaving all other fields as-is; + * reg_val = r32_int(19, 1, reg_value); + * + */ +#define MAKE_MASK32(width) (width == 32 ? 0xffffffff : \ + (u32)((1 << width) - 1)) +#define DECLARE_CODEC32(t) \ +static inline u32 e32_##t(u32 lsoffset, u32 width, t val) \ +{ \ + WARN_ON(width > (sizeof(t) * 8)); \ + return ((u32)val & MAKE_MASK32(width)) << lsoffset; \ +} \ +static inline t d32_##t(u32 lsoffset, u32 width, u32 val) \ +{ \ + WARN_ON(width > (sizeof(t) * 8)); \ + return (t)((val >> lsoffset) & MAKE_MASK32(width)); \ +} \ +static inline u32 i32_##t(u32 lsoffset, u32 width, \ + u32 val) \ +{ \ + WARN_ON(width > (sizeof(t) * 8)); \ + return e32_##t(lsoffset, width, d32_##t(lsoffset, width, val)); \ +} \ +static inline u32 r32_##t(u32 lsoffset, u32 width, \ + u32 val) \ +{ \ + WARN_ON(width > (sizeof(t) * 8)); \ + return ~(MAKE_MASK32(width) << lsoffset) & val; \ +} +DECLARE_CODEC32(u32) +DECLARE_CODEC32(u16) +DECLARE_CODEC32(u8) +DECLARE_CODEC32(int) + + /*********************/ + /* Debugging assists */ + /*********************/ + +static inline void __hexdump(unsigned long start, unsigned long end, + unsigned long p, size_t sz, + const unsigned char *c) +{ + while (start < end) { + unsigned int pos = 0; + char buf[64]; + int nl = 0; + + pos += sprintf(buf + pos, "%08lx: ", start); + do { + if ((start < p) || (start >= (p + sz))) + pos += sprintf(buf + pos, ".."); + else + pos += sprintf(buf + pos, "%02x", *(c++)); + if (!(++start & 15)) { + buf[pos++] = '\n'; + nl = 1; + } else { + nl = 0; + if (!(start & 1)) + buf[pos++] = ' '; + if (!(start & 3)) + buf[pos++] = ' '; + } + } while (start & 15); + if (!nl) + buf[pos++] = '\n'; + buf[pos] = '\0'; + pr_info("%s", buf); + } +} + +static inline void hexdump(const void *ptr, size_t sz) +{ + unsigned long p = (unsigned long)ptr; + unsigned long start = p & ~15ul; + unsigned long end = (p + sz + 15) & ~15ul; + const unsigned char *c = ptr; + + __hexdump(start, end, p, sz, c); +} --- a/drivers/staging/fsl-mc/bus/dpmcp-cmd.h +++ b/drivers/staging/fsl-mc/bus/dpmcp-cmd.h @@ -1,4 +1,5 @@ -/* Copyright 2013-2016 Freescale Semiconductor Inc. +/* + * Copyright 2013-2016 Freescale Semiconductor Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: @@ -11,7 +12,6 @@ * names of any contributors may be used to endorse or promote products * derived from this software without specific prior written permission. * - * * ALTERNATIVELY, this software may be distributed under the terms of the * GNU General Public License ("GPL") as published by the Free Software * Foundation, either version 2 of that License or (at your option) any @@ -33,108 +33,24 @@ #define _FSL_DPMCP_CMD_H /* Minimal supported DPMCP Version */ -#define DPMCP_MIN_VER_MAJOR 3 -#define DPMCP_MIN_VER_MINOR 0 - -/* Command IDs */ -#define DPMCP_CMDID_CLOSE 0x800 -#define DPMCP_CMDID_OPEN 0x80b -#define DPMCP_CMDID_CREATE 0x90b -#define DPMCP_CMDID_DESTROY 0x900 - -#define DPMCP_CMDID_GET_ATTR 0x004 -#define DPMCP_CMDID_RESET 0x005 - -#define DPMCP_CMDID_SET_IRQ 0x010 -#define DPMCP_CMDID_GET_IRQ 0x011 -#define DPMCP_CMDID_SET_IRQ_ENABLE 0x012 -#define DPMCP_CMDID_GET_IRQ_ENABLE 0x013 -#define DPMCP_CMDID_SET_IRQ_MASK 0x014 -#define DPMCP_CMDID_GET_IRQ_MASK 0x015 -#define DPMCP_CMDID_GET_IRQ_STATUS 0x016 - -struct dpmcp_cmd_open { - __le32 dpmcp_id; -}; - -struct dpmcp_cmd_create { - __le32 portal_id; -}; - -struct dpmcp_cmd_set_irq { - /* cmd word 0 */ - u8 irq_index; - u8 pad[3]; - __le32 irq_val; - /* cmd word 1 */ - __le64 irq_addr; - /* cmd word 2 */ - __le32 irq_num; -}; - -struct dpmcp_cmd_get_irq { - __le32 pad; - u8 irq_index; -}; - -struct dpmcp_rsp_get_irq { - /* cmd word 0 */ - __le32 irq_val; - __le32 pad; - /* cmd word 1 */ - __le64 irq_paddr; - /* cmd word 2 */ - __le32 irq_num; - __le32 type; -}; +#define DPMCP_MIN_VER_MAJOR 3 +#define DPMCP_MIN_VER_MINOR 0 -#define DPMCP_ENABLE 0x1 +/* Command versioning */ +#define DPMCP_CMD_BASE_VERSION 1 +#define DPMCP_CMD_ID_OFFSET 4 -struct dpmcp_cmd_set_irq_enable { - u8 enable; - u8 pad[3]; - u8 irq_index; -}; +#define DPMCP_CMD(id) ((id << DPMCP_CMD_ID_OFFSET) | DPMCP_CMD_BASE_VERSION) -struct dpmcp_cmd_get_irq_enable { - __le32 pad; - u8 irq_index; -}; - -struct dpmcp_rsp_get_irq_enable { - u8 enabled; -}; - -struct dpmcp_cmd_set_irq_mask { - __le32 mask; - u8 irq_index; -}; - -struct dpmcp_cmd_get_irq_mask { - __le32 pad; - u8 irq_index; -}; - -struct dpmcp_rsp_get_irq_mask { - __le32 mask; -}; +/* Command IDs */ +#define DPMCP_CMDID_CLOSE DPMCP_CMD(0x800) +#define DPMCP_CMDID_OPEN DPMCP_CMD(0x80b) +#define DPMCP_CMDID_GET_API_VERSION DPMCP_CMD(0xa0b) -struct dpmcp_cmd_get_irq_status { - __le32 status; - u8 irq_index; -}; +#define DPMCP_CMDID_RESET DPMCP_CMD(0x005) -struct dpmcp_rsp_get_irq_status { - __le32 status; -}; - -struct dpmcp_rsp_get_attributes { - /* response word 0 */ - __le32 pad; - __le32 id; - /* response word 1 */ - __le16 version_major; - __le16 version_minor; +struct dpmcp_cmd_open { + __le32 dpmcp_id; }; #endif /* _FSL_DPMCP_CMD_H */ --- a/drivers/staging/fsl-mc/bus/dpmcp.c +++ b/drivers/staging/fsl-mc/bus/dpmcp.c @@ -1,4 +1,5 @@ -/* Copyright 2013-2016 Freescale Semiconductor Inc. +/* + * Copyright 2013-2016 Freescale Semiconductor Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: @@ -11,7 +12,6 @@ * names of any contributors may be used to endorse or promote products * derived from this software without specific prior written permission. * - * * ALTERNATIVELY, this software may be distributed under the terms of the * GNU General Public License ("GPL") as published by the Free Software * Foundation, either version 2 of that License or (at your option) any @@ -104,76 +104,6 @@ int dpmcp_close(struct fsl_mc_io *mc_io, } /** - * dpmcp_create() - Create the DPMCP object. - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @cfg: Configuration structure - * @token: Returned token; use in subsequent API calls - * - * Create the DPMCP object, allocate required resources and - * perform required initialization. - * - * The object can be created either by declaring it in the - * DPL file, or by calling this function. - * This function returns a unique authentication token, - * associated with the specific object ID and the specific MC - * portal; this token must be used in all subsequent calls to - * this specific object. For objects that are created using the - * DPL file, call dpmcp_open function to get an authentication - * token first. - * - * Return: '0' on Success; Error code otherwise. - */ -int dpmcp_create(struct fsl_mc_io *mc_io, - u32 cmd_flags, - const struct dpmcp_cfg *cfg, - u16 *token) -{ - struct mc_command cmd = { 0 }; - struct dpmcp_cmd_create *cmd_params; - - int err; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPMCP_CMDID_CREATE, - cmd_flags, 0); - cmd_params = (struct dpmcp_cmd_create *)cmd.params; - cmd_params->portal_id = cpu_to_le32(cfg->portal_id); - - /* send command to mc*/ - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - *token = mc_cmd_hdr_read_token(&cmd); - - return 0; -} - -/** - * dpmcp_destroy() - Destroy the DPMCP object and release all its resources. - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPMCP object - * - * Return: '0' on Success; error code otherwise. - */ -int dpmcp_destroy(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token) -{ - struct mc_command cmd = { 0 }; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPMCP_CMDID_DESTROY, - cmd_flags, token); - - /* send command to mc*/ - return mc_send_command(mc_io, &cmd); -} - -/** * dpmcp_reset() - Reset the DPMCP, returns the object to initial state. * @mc_io: Pointer to MC portal's I/O object * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' @@ -196,309 +126,33 @@ int dpmcp_reset(struct fsl_mc_io *mc_io, } /** - * dpmcp_set_irq() - Set IRQ information for the DPMCP to trigger an interrupt. - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPMCP object - * @irq_index: Identifies the interrupt index to configure - * @irq_cfg: IRQ configuration - * - * Return: '0' on Success; Error code otherwise. - */ -int dpmcp_set_irq(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - struct dpmcp_irq_cfg *irq_cfg) -{ - struct mc_command cmd = { 0 }; - struct dpmcp_cmd_set_irq *cmd_params; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPMCP_CMDID_SET_IRQ, - cmd_flags, token); - cmd_params = (struct dpmcp_cmd_set_irq *)cmd.params; - cmd_params->irq_index = irq_index; - cmd_params->irq_val = cpu_to_le32(irq_cfg->val); - cmd_params->irq_addr = cpu_to_le64(irq_cfg->paddr); - cmd_params->irq_num = cpu_to_le32(irq_cfg->irq_num); - - /* send command to mc*/ - return mc_send_command(mc_io, &cmd); -} - -/** - * dpmcp_get_irq() - Get IRQ information from the DPMCP. - * @mc_io: Pointer to MC portal's I/O object + * dpmcp_get_api_version - Get Data Path Management Command Portal API version + * @mc_io: Pointer to Mc portal's I/O object * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPMCP object - * @irq_index: The interrupt index to configure - * @type: Interrupt type: 0 represents message interrupt - * type (both irq_addr and irq_val are valid) - * @irq_cfg: IRQ attributes + * @major_ver: Major version of Data Path Management Command Portal API + * @minor_ver: Minor version of Data Path Management Command Portal API * * Return: '0' on Success; Error code otherwise. */ -int dpmcp_get_irq(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - int *type, - struct dpmcp_irq_cfg *irq_cfg) +int dpmcp_get_api_version(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 *major_ver, + u16 *minor_ver) { struct mc_command cmd = { 0 }; - struct dpmcp_cmd_get_irq *cmd_params; - struct dpmcp_rsp_get_irq *rsp_params; int err; /* prepare command */ - cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_IRQ, - cmd_flags, token); - cmd_params = (struct dpmcp_cmd_get_irq *)cmd.params; - cmd_params->irq_index = irq_index; - - /* send command to mc*/ - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - rsp_params = (struct dpmcp_rsp_get_irq *)cmd.params; - irq_cfg->val = le32_to_cpu(rsp_params->irq_val); - irq_cfg->paddr = le64_to_cpu(rsp_params->irq_paddr); - irq_cfg->irq_num = le32_to_cpu(rsp_params->irq_num); - *type = le32_to_cpu(rsp_params->type); - return 0; -} - -/** - * dpmcp_set_irq_enable() - Set overall interrupt state. - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPMCP object - * @irq_index: The interrupt index to configure - * @en: Interrupt state - enable = 1, disable = 0 - * - * Allows GPP software to control when interrupts are generated. - * Each interrupt can have up to 32 causes. The enable/disable control's the - * overall interrupt state. if the interrupt is disabled no causes will cause - * an interrupt. - * - * Return: '0' on Success; Error code otherwise. - */ -int dpmcp_set_irq_enable(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u8 en) -{ - struct mc_command cmd = { 0 }; - struct dpmcp_cmd_set_irq_enable *cmd_params; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPMCP_CMDID_SET_IRQ_ENABLE, - cmd_flags, token); - cmd_params = (struct dpmcp_cmd_set_irq_enable *)cmd.params; - cmd_params->enable = en & DPMCP_ENABLE; - cmd_params->irq_index = irq_index; - - /* send command to mc*/ - return mc_send_command(mc_io, &cmd); -} - -/** - * dpmcp_get_irq_enable() - Get overall interrupt state - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPMCP object - * @irq_index: The interrupt index to configure - * @en: Returned interrupt state - enable = 1, disable = 0 - * - * Return: '0' on Success; Error code otherwise. - */ -int dpmcp_get_irq_enable(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u8 *en) -{ - struct mc_command cmd = { 0 }; - struct dpmcp_cmd_get_irq_enable *cmd_params; - struct dpmcp_rsp_get_irq_enable *rsp_params; - int err; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_IRQ_ENABLE, - cmd_flags, token); - cmd_params = (struct dpmcp_cmd_get_irq_enable *)cmd.params; - cmd_params->irq_index = irq_index; - - /* send command to mc*/ - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - rsp_params = (struct dpmcp_rsp_get_irq_enable *)cmd.params; - *en = rsp_params->enabled & DPMCP_ENABLE; - return 0; -} - -/** - * dpmcp_set_irq_mask() - Set interrupt mask. - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPMCP object - * @irq_index: The interrupt index to configure - * @mask: Event mask to trigger interrupt; - * each bit: - * 0 = ignore event - * 1 = consider event for asserting IRQ - * - * Every interrupt can have up to 32 causes and the interrupt model supports - * masking/unmasking each cause independently - * - * Return: '0' on Success; Error code otherwise. - */ -int dpmcp_set_irq_mask(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u32 mask) -{ - struct mc_command cmd = { 0 }; - struct dpmcp_cmd_set_irq_mask *cmd_params; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPMCP_CMDID_SET_IRQ_MASK, - cmd_flags, token); - cmd_params = (struct dpmcp_cmd_set_irq_mask *)cmd.params; - cmd_params->mask = cpu_to_le32(mask); - cmd_params->irq_index = irq_index; - - /* send command to mc*/ - return mc_send_command(mc_io, &cmd); -} - -/** - * dpmcp_get_irq_mask() - Get interrupt mask. - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPMCP object - * @irq_index: The interrupt index to configure - * @mask: Returned event mask to trigger interrupt - * - * Every interrupt can have up to 32 causes and the interrupt model supports - * masking/unmasking each cause independently - * - * Return: '0' on Success; Error code otherwise. - */ -int dpmcp_get_irq_mask(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u32 *mask) -{ - struct mc_command cmd = { 0 }; - struct dpmcp_cmd_get_irq_mask *cmd_params; - struct dpmcp_rsp_get_irq_mask *rsp_params; - - int err; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_IRQ_MASK, - cmd_flags, token); - cmd_params = (struct dpmcp_cmd_get_irq_mask *)cmd.params; - cmd_params->irq_index = irq_index; - - /* send command to mc*/ - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - rsp_params = (struct dpmcp_rsp_get_irq_mask *)cmd.params; - *mask = le32_to_cpu(rsp_params->mask); - - return 0; -} - -/** - * dpmcp_get_irq_status() - Get the current status of any pending interrupts. - * - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPMCP object - * @irq_index: The interrupt index to configure - * @status: Returned interrupts status - one bit per cause: - * 0 = no interrupt pending - * 1 = interrupt pending - * - * Return: '0' on Success; Error code otherwise. - */ -int dpmcp_get_irq_status(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u32 *status) -{ - struct mc_command cmd = { 0 }; - struct dpmcp_cmd_get_irq_status *cmd_params; - struct dpmcp_rsp_get_irq_status *rsp_params; - int err; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_IRQ_STATUS, - cmd_flags, token); - cmd_params = (struct dpmcp_cmd_get_irq_status *)cmd.params; - cmd_params->status = cpu_to_le32(*status); - cmd_params->irq_index = irq_index; - - /* send command to mc*/ - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - rsp_params = (struct dpmcp_rsp_get_irq_status *)cmd.params; - *status = le32_to_cpu(rsp_params->status); - - return 0; -} - -/** - * dpmcp_get_attributes - Retrieve DPMCP attributes. - * - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPMCP object - * @attr: Returned object's attributes - * - * Return: '0' on Success; Error code otherwise. - */ -int dpmcp_get_attributes(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - struct dpmcp_attr *attr) -{ - struct mc_command cmd = { 0 }; - struct dpmcp_rsp_get_attributes *rsp_params; - int err; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_ATTR, - cmd_flags, token); + cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_API_VERSION, + cmd_flags, 0); - /* send command to mc*/ + /* send command to mc */ err = mc_send_command(mc_io, &cmd); if (err) return err; /* retrieve response parameters */ - rsp_params = (struct dpmcp_rsp_get_attributes *)cmd.params; - attr->id = le32_to_cpu(rsp_params->id); - attr->version.major = le16_to_cpu(rsp_params->version_major); - attr->version.minor = le16_to_cpu(rsp_params->version_minor); + mc_cmd_read_api_version(&cmd, major_ver, minor_ver); return 0; } --- a/drivers/staging/fsl-mc/bus/dpmcp.h +++ b/drivers/staging/fsl-mc/bus/dpmcp.h @@ -1,4 +1,5 @@ -/* Copyright 2013-2015 Freescale Semiconductor Inc. +/* + * Copyright 2013-2016 Freescale Semiconductor Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: @@ -11,7 +12,6 @@ * names of any contributors may be used to endorse or promote products * derived from this software without specific prior written permission. * - * * ALTERNATIVELY, this software may be distributed under the terms of the * GNU General Public License ("GPL") as published by the Free Software * Foundation, either version 2 of that License or (at your option) any @@ -32,128 +32,29 @@ #ifndef __FSL_DPMCP_H #define __FSL_DPMCP_H -/* Data Path Management Command Portal API +/* + * Data Path Management Command Portal API * Contains initialization APIs and runtime control APIs for DPMCP */ struct fsl_mc_io; int dpmcp_open(struct fsl_mc_io *mc_io, - uint32_t cmd_flags, + u32 cmd_flags, int dpmcp_id, - uint16_t *token); - -/* Get portal ID from pool */ -#define DPMCP_GET_PORTAL_ID_FROM_POOL (-1) + u16 *token); int dpmcp_close(struct fsl_mc_io *mc_io, - uint32_t cmd_flags, - uint16_t token); + u32 cmd_flags, + u16 token); -/** - * struct dpmcp_cfg - Structure representing DPMCP configuration - * @portal_id: Portal ID; 'DPMCP_GET_PORTAL_ID_FROM_POOL' to get the portal ID - * from pool - */ -struct dpmcp_cfg { - int portal_id; -}; - -int dpmcp_create(struct fsl_mc_io *mc_io, - uint32_t cmd_flags, - const struct dpmcp_cfg *cfg, - uint16_t *token); - -int dpmcp_destroy(struct fsl_mc_io *mc_io, - uint32_t cmd_flags, - uint16_t token); +int dpmcp_get_api_version(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 *major_ver, + u16 *minor_ver); int dpmcp_reset(struct fsl_mc_io *mc_io, - uint32_t cmd_flags, - uint16_t token); - -/* IRQ */ -/* IRQ Index */ -#define DPMCP_IRQ_INDEX 0 -/* irq event - Indicates that the link state changed */ -#define DPMCP_IRQ_EVENT_CMD_DONE 0x00000001 - -/** - * struct dpmcp_irq_cfg - IRQ configuration - * @paddr: Address that must be written to signal a message-based interrupt - * @val: Value to write into irq_addr address - * @irq_num: A user defined number associated with this IRQ - */ -struct dpmcp_irq_cfg { - uint64_t paddr; - uint32_t val; - int irq_num; -}; - -int dpmcp_set_irq(struct fsl_mc_io *mc_io, - uint32_t cmd_flags, - uint16_t token, - uint8_t irq_index, - struct dpmcp_irq_cfg *irq_cfg); - -int dpmcp_get_irq(struct fsl_mc_io *mc_io, - uint32_t cmd_flags, - uint16_t token, - uint8_t irq_index, - int *type, - struct dpmcp_irq_cfg *irq_cfg); - -int dpmcp_set_irq_enable(struct fsl_mc_io *mc_io, - uint32_t cmd_flags, - uint16_t token, - uint8_t irq_index, - uint8_t en); - -int dpmcp_get_irq_enable(struct fsl_mc_io *mc_io, - uint32_t cmd_flags, - uint16_t token, - uint8_t irq_index, - uint8_t *en); - -int dpmcp_set_irq_mask(struct fsl_mc_io *mc_io, - uint32_t cmd_flags, - uint16_t token, - uint8_t irq_index, - uint32_t mask); - -int dpmcp_get_irq_mask(struct fsl_mc_io *mc_io, - uint32_t cmd_flags, - uint16_t token, - uint8_t irq_index, - uint32_t *mask); - -int dpmcp_get_irq_status(struct fsl_mc_io *mc_io, - uint32_t cmd_flags, - uint16_t token, - uint8_t irq_index, - uint32_t *status); - -/** - * struct dpmcp_attr - Structure representing DPMCP attributes - * @id: DPMCP object ID - * @version: DPMCP version - */ -struct dpmcp_attr { - int id; - /** - * struct version - Structure representing DPMCP version - * @major: DPMCP major version - * @minor: DPMCP minor version - */ - struct { - uint16_t major; - uint16_t minor; - } version; -}; - -int dpmcp_get_attributes(struct fsl_mc_io *mc_io, - uint32_t cmd_flags, - uint16_t token, - struct dpmcp_attr *attr); + u32 cmd_flags, + u16 token); #endif /* __FSL_DPMCP_H */ --- a/drivers/staging/fsl-mc/bus/dpmng-cmd.h +++ b/drivers/staging/fsl-mc/bus/dpmng-cmd.h @@ -12,7 +12,6 @@ * names of any contributors may be used to endorse or promote products * derived from this software without specific prior written permission. * - * * ALTERNATIVELY, this software may be distributed under the terms of the * GNU General Public License ("GPL") as published by the Free Software * Foundation, either version 2 of that License or (at your option) any @@ -41,13 +40,14 @@ #ifndef __FSL_DPMNG_CMD_H #define __FSL_DPMNG_CMD_H -/* Command IDs */ -#define DPMNG_CMDID_GET_CONT_ID 0x830 -#define DPMNG_CMDID_GET_VERSION 0x831 +/* Command versioning */ +#define DPMNG_CMD_BASE_VERSION 1 +#define DPMNG_CMD_ID_OFFSET 4 -struct dpmng_rsp_get_container_id { - __le32 container_id; -}; +#define DPMNG_CMD(id) ((id << DPMNG_CMD_ID_OFFSET) | DPMNG_CMD_BASE_VERSION) + +/* Command IDs */ +#define DPMNG_CMDID_GET_VERSION DPMNG_CMD(0x831) struct dpmng_rsp_get_version { __le32 revision; --- a/drivers/staging/fsl-mc/bus/dpmng.c +++ b/drivers/staging/fsl-mc/bus/dpmng.c @@ -1,4 +1,5 @@ -/* Copyright 2013-2016 Freescale Semiconductor Inc. +/* + * Copyright 2013-2016 Freescale Semiconductor Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: @@ -11,7 +12,6 @@ * names of any contributors may be used to endorse or promote products * derived from this software without specific prior written permission. * - * * ALTERNATIVELY, this software may be distributed under the terms of the * GNU General Public License ("GPL") as published by the Free Software * Foundation, either version 2 of that License or (at your option) any @@ -72,36 +72,3 @@ int mc_get_version(struct fsl_mc_io *mc_ } EXPORT_SYMBOL(mc_get_version); -/** - * dpmng_get_container_id() - Get container ID associated with a given portal. - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @container_id: Requested container ID - * - * Return: '0' on Success; Error code otherwise. - */ -int dpmng_get_container_id(struct fsl_mc_io *mc_io, - u32 cmd_flags, - int *container_id) -{ - struct mc_command cmd = { 0 }; - struct dpmng_rsp_get_container_id *rsp_params; - int err; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPMNG_CMDID_GET_CONT_ID, - cmd_flags, - 0); - - /* send command to mc*/ - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - rsp_params = (struct dpmng_rsp_get_container_id *)cmd.params; - *container_id = le32_to_cpu(rsp_params->container_id); - - return 0; -} - --- a/drivers/staging/fsl-mc/bus/dprc-cmd.h +++ b/drivers/staging/fsl-mc/bus/dprc-cmd.h @@ -12,7 +12,6 @@ * names of any contributors may be used to endorse or promote products * derived from this software without specific prior written permission. * - * * ALTERNATIVELY, this software may be distributed under the terms of the * GNU General Public License ("GPL") as published by the Free Software * Foundation, either version 2 of that License or (at your option) any @@ -42,48 +41,39 @@ #define _FSL_DPRC_CMD_H /* Minimal supported DPRC Version */ -#define DPRC_MIN_VER_MAJOR 5 +#define DPRC_MIN_VER_MAJOR 6 #define DPRC_MIN_VER_MINOR 0 -/* Command IDs */ -#define DPRC_CMDID_CLOSE 0x800 -#define DPRC_CMDID_OPEN 0x805 -#define DPRC_CMDID_CREATE 0x905 - -#define DPRC_CMDID_GET_ATTR 0x004 -#define DPRC_CMDID_RESET_CONT 0x005 - -#define DPRC_CMDID_SET_IRQ 0x010 -#define DPRC_CMDID_GET_IRQ 0x011 -#define DPRC_CMDID_SET_IRQ_ENABLE 0x012 -#define DPRC_CMDID_GET_IRQ_ENABLE 0x013 -#define DPRC_CMDID_SET_IRQ_MASK 0x014 -#define DPRC_CMDID_GET_IRQ_MASK 0x015 -#define DPRC_CMDID_GET_IRQ_STATUS 0x016 -#define DPRC_CMDID_CLEAR_IRQ_STATUS 0x017 - -#define DPRC_CMDID_CREATE_CONT 0x151 -#define DPRC_CMDID_DESTROY_CONT 0x152 -#define DPRC_CMDID_SET_RES_QUOTA 0x155 -#define DPRC_CMDID_GET_RES_QUOTA 0x156 -#define DPRC_CMDID_ASSIGN 0x157 -#define DPRC_CMDID_UNASSIGN 0x158 -#define DPRC_CMDID_GET_OBJ_COUNT 0x159 -#define DPRC_CMDID_GET_OBJ 0x15A -#define DPRC_CMDID_GET_RES_COUNT 0x15B -#define DPRC_CMDID_GET_RES_IDS 0x15C -#define DPRC_CMDID_GET_OBJ_REG 0x15E -#define DPRC_CMDID_SET_OBJ_IRQ 0x15F -#define DPRC_CMDID_GET_OBJ_IRQ 0x160 -#define DPRC_CMDID_SET_OBJ_LABEL 0x161 -#define DPRC_CMDID_GET_OBJ_DESC 0x162 - -#define DPRC_CMDID_CONNECT 0x167 -#define DPRC_CMDID_DISCONNECT 0x168 -#define DPRC_CMDID_GET_POOL 0x169 -#define DPRC_CMDID_GET_POOL_COUNT 0x16A +/* Command versioning */ +#define DPRC_CMD_BASE_VERSION 1 +#define DPRC_CMD_ID_OFFSET 4 -#define DPRC_CMDID_GET_CONNECTION 0x16C +#define DPRC_CMD(id) ((id << DPRC_CMD_ID_OFFSET) | DPRC_CMD_BASE_VERSION) + +/* Command IDs */ +#define DPRC_CMDID_CLOSE DPRC_CMD(0x800) +#define DPRC_CMDID_OPEN DPRC_CMD(0x805) +#define DPRC_CMDID_GET_API_VERSION DPRC_CMD(0xa05) + +#define DPRC_CMDID_GET_ATTR DPRC_CMD(0x004) +#define DPRC_CMDID_RESET_CONT DPRC_CMD(0x005) + +#define DPRC_CMDID_SET_IRQ DPRC_CMD(0x010) +#define DPRC_CMDID_GET_IRQ DPRC_CMD(0x011) +#define DPRC_CMDID_SET_IRQ_ENABLE DPRC_CMD(0x012) +#define DPRC_CMDID_GET_IRQ_ENABLE DPRC_CMD(0x013) +#define DPRC_CMDID_SET_IRQ_MASK DPRC_CMD(0x014) +#define DPRC_CMDID_GET_IRQ_MASK DPRC_CMD(0x015) +#define DPRC_CMDID_GET_IRQ_STATUS DPRC_CMD(0x016) +#define DPRC_CMDID_CLEAR_IRQ_STATUS DPRC_CMD(0x017) + +#define DPRC_CMDID_GET_CONT_ID DPRC_CMD(0x830) +#define DPRC_CMDID_GET_OBJ_COUNT DPRC_CMD(0x159) +#define DPRC_CMDID_GET_OBJ DPRC_CMD(0x15A) +#define DPRC_CMDID_GET_RES_COUNT DPRC_CMD(0x15B) +#define DPRC_CMDID_GET_OBJ_REG DPRC_CMD(0x15E) +#define DPRC_CMDID_SET_OBJ_IRQ DPRC_CMD(0x15F) +#define DPRC_CMDID_GET_OBJ_IRQ DPRC_CMD(0x160) struct dprc_cmd_open { __le32 container_id; @@ -199,9 +189,6 @@ struct dprc_rsp_get_attributes { /* response word 1 */ __le32 options; __le32 portal_id; - /* response word 2 */ - __le16 version_major; - __le16 version_minor; }; struct dprc_cmd_set_res_quota { @@ -367,11 +354,16 @@ struct dprc_cmd_get_obj_region { struct dprc_rsp_get_obj_region { /* response word 0 */ - __le64 pad; + __le64 pad0; /* response word 1 */ - __le64 base_addr; + __le32 base_addr; + __le32 pad1; /* response word 2 */ __le32 size; + u8 type; + u8 pad2[3]; + /* response word 3 */ + __le32 flags; }; struct dprc_cmd_set_obj_label { --- a/drivers/staging/fsl-mc/bus/dprc-driver.c +++ b/drivers/staging/fsl-mc/bus/dprc-driver.c @@ -1,7 +1,7 @@ /* * Freescale data path resource container (DPRC) driver * - * Copyright (C) 2014 Freescale Semiconductor, Inc. + * Copyright (C) 2014-2016 Freescale Semiconductor, Inc. * Author: German Rivera * * This file is licensed under the terms of the GNU General Public @@ -160,6 +160,8 @@ static void check_plugged_state_change(s * dprc_add_new_devices - Adds devices to the logical bus for a DPRC * * @mc_bus_dev: pointer to the fsl-mc device that represents a DPRC object + * @driver_override: driver override to apply to new objects found in the + * DPRC, or NULL, if none. * @obj_desc_array: array of device descriptors for child devices currently * present in the physical DPRC. * @num_child_objects_in_mc: number of entries in obj_desc_array @@ -169,6 +171,7 @@ static void check_plugged_state_change(s * in the physical DPRC. */ static void dprc_add_new_devices(struct fsl_mc_device *mc_bus_dev, + const char *driver_override, struct dprc_obj_desc *obj_desc_array, int num_child_objects_in_mc) { @@ -188,11 +191,12 @@ static void dprc_add_new_devices(struct child_dev = fsl_mc_device_lookup(obj_desc, mc_bus_dev); if (child_dev) { check_plugged_state_change(child_dev, obj_desc); + put_device(&child_dev->dev); continue; } error = fsl_mc_device_add(obj_desc, NULL, &mc_bus_dev->dev, - &child_dev); + driver_override, &child_dev); if (error < 0) continue; } @@ -202,6 +206,8 @@ static void dprc_add_new_devices(struct * dprc_scan_objects - Discover objects in a DPRC * * @mc_bus_dev: pointer to the fsl-mc device that represents a DPRC object + * @driver_override: driver override to apply to new objects found in the + * DPRC, or NULL, if none. * @total_irq_count: total number of IRQs needed by objects in the DPRC. * * Detects objects added and removed from a DPRC and synchronizes the @@ -217,6 +223,7 @@ static void dprc_add_new_devices(struct * of the device drivers for the non-allocatable devices. */ int dprc_scan_objects(struct fsl_mc_device *mc_bus_dev, + const char *driver_override, unsigned int *total_irq_count) { int num_child_objects; @@ -297,7 +304,7 @@ int dprc_scan_objects(struct fsl_mc_devi dprc_remove_devices(mc_bus_dev, child_obj_desc_array, num_child_objects); - dprc_add_new_devices(mc_bus_dev, child_obj_desc_array, + dprc_add_new_devices(mc_bus_dev, driver_override, child_obj_desc_array, num_child_objects); if (child_obj_desc_array) @@ -328,7 +335,7 @@ int dprc_scan_container(struct fsl_mc_de * Discover objects in the DPRC: */ mutex_lock(&mc_bus->scan_mutex); - error = dprc_scan_objects(mc_bus_dev, &irq_count); + error = dprc_scan_objects(mc_bus_dev, NULL, &irq_count); mutex_unlock(&mc_bus->scan_mutex); if (error < 0) goto error; @@ -415,7 +422,7 @@ static irqreturn_t dprc_irq0_handler_thr DPRC_IRQ_EVENT_OBJ_CREATED)) { unsigned int irq_count; - error = dprc_scan_objects(mc_dev, &irq_count); + error = dprc_scan_objects(mc_dev, NULL, &irq_count); if (error < 0) { /* * If the error is -ENXIO, we ignore it, as it indicates @@ -505,7 +512,7 @@ static int register_dprc_irq_handler(str dprc_irq0_handler, dprc_irq0_handler_thread, IRQF_NO_SUSPEND | IRQF_ONESHOT, - "FSL MC DPRC irq0", + dev_name(&mc_dev->dev), &mc_dev->dev); if (error < 0) { dev_err(&mc_dev->dev, @@ -597,6 +604,7 @@ static int dprc_probe(struct fsl_mc_devi struct fsl_mc_bus *mc_bus = to_fsl_mc_bus(mc_dev); bool mc_io_created = false; bool msi_domain_set = false; + u16 major_ver, minor_ver; if (WARN_ON(strcmp(mc_dev->obj_desc.type, "dprc") != 0)) return -EINVAL; @@ -669,13 +677,21 @@ static int dprc_probe(struct fsl_mc_devi goto error_cleanup_open; } - if (mc_bus->dprc_attr.version.major < DPRC_MIN_VER_MAJOR || - (mc_bus->dprc_attr.version.major == DPRC_MIN_VER_MAJOR && - mc_bus->dprc_attr.version.minor < DPRC_MIN_VER_MINOR)) { + error = dprc_get_api_version(mc_dev->mc_io, 0, + &major_ver, + &minor_ver); + if (error < 0) { + dev_err(&mc_dev->dev, "dprc_get_api_version() failed: %d\n", + error); + goto error_cleanup_open; + } + + if (major_ver < DPRC_MIN_VER_MAJOR || + (major_ver == DPRC_MIN_VER_MAJOR && + minor_ver < DPRC_MIN_VER_MINOR)) { dev_err(&mc_dev->dev, "ERROR: DPRC version %d.%d not supported\n", - mc_bus->dprc_attr.version.major, - mc_bus->dprc_attr.version.minor); + major_ver, minor_ver); error = -ENOTSUPP; goto error_cleanup_open; } --- a/drivers/staging/fsl-mc/bus/dprc.c +++ b/drivers/staging/fsl-mc/bus/dprc.c @@ -1,4 +1,5 @@ -/* Copyright 2013-2016 Freescale Semiconductor Inc. +/* + * Copyright 2013-2016 Freescale Semiconductor Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: @@ -11,7 +12,6 @@ * names of any contributors may be used to endorse or promote products * derived from this software without specific prior written permission. * - * * ALTERNATIVELY, this software may be distributed under the terms of the * GNU General Public License ("GPL") as published by the Free Software * Foundation, either version 2 of that License or (at your option) any @@ -100,93 +100,6 @@ int dprc_close(struct fsl_mc_io *mc_io, EXPORT_SYMBOL(dprc_close); /** - * dprc_create_container() - Create child container - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPRC object - * @cfg: Child container configuration - * @child_container_id: Returned child container ID - * @child_portal_offset: Returned child portal offset from MC portal base - * - * Return: '0' on Success; Error code otherwise. - */ -int dprc_create_container(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - struct dprc_cfg *cfg, - int *child_container_id, - u64 *child_portal_offset) -{ - struct mc_command cmd = { 0 }; - struct dprc_cmd_create_container *cmd_params; - struct dprc_rsp_create_container *rsp_params; - int err; - - /* prepare command */ - cmd_params = (struct dprc_cmd_create_container *)cmd.params; - cmd_params->options = cpu_to_le32(cfg->options); - cmd_params->icid = cpu_to_le16(cfg->icid); - cmd_params->portal_id = cpu_to_le32(cfg->portal_id); - strncpy(cmd_params->label, cfg->label, 16); - cmd_params->label[15] = '\0'; - - cmd.header = mc_encode_cmd_header(DPRC_CMDID_CREATE_CONT, - cmd_flags, token); - - /* send command to mc*/ - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - rsp_params = (struct dprc_rsp_create_container *)cmd.params; - *child_container_id = le32_to_cpu(rsp_params->child_container_id); - *child_portal_offset = le64_to_cpu(rsp_params->child_portal_addr); - - return 0; -} - -/** - * dprc_destroy_container() - Destroy child container. - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPRC object - * @child_container_id: ID of the container to destroy - * - * This function terminates the child container, so following this call the - * child container ID becomes invalid. - * - * Notes: - * - All resources and objects of the destroyed container are returned to the - * parent container or destroyed if were created be the destroyed container. - * - This function destroy all the child containers of the specified - * container prior to destroying the container itself. - * - * warning: Only the parent container is allowed to destroy a child policy - * Container 0 can't be destroyed - * - * Return: '0' on Success; Error code otherwise. - * - */ -int dprc_destroy_container(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - int child_container_id) -{ - struct mc_command cmd = { 0 }; - struct dprc_cmd_destroy_container *cmd_params; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPRC_CMDID_DESTROY_CONT, - cmd_flags, token); - cmd_params = (struct dprc_cmd_destroy_container *)cmd.params; - cmd_params->child_container_id = cpu_to_le32(child_container_id); - - /* send command to mc*/ - return mc_send_command(mc_io, &cmd); -} - -/** * dprc_reset_container - Reset child container. * @mc_io: Pointer to MC portal's I/O object * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' @@ -565,279 +478,6 @@ int dprc_get_attributes(struct fsl_mc_io attr->icid = le16_to_cpu(rsp_params->icid); attr->options = le32_to_cpu(rsp_params->options); attr->portal_id = le32_to_cpu(rsp_params->portal_id); - attr->version.major = le16_to_cpu(rsp_params->version_major); - attr->version.minor = le16_to_cpu(rsp_params->version_minor); - - return 0; -} - -/** - * dprc_set_res_quota() - Set allocation policy for a specific resource/object - * type in a child container - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPRC object - * @child_container_id: ID of the child container - * @type: Resource/object type - * @quota: Sets the maximum number of resources of the selected type - * that the child container is allowed to allocate from its parent; - * when quota is set to -1, the policy is the same as container's - * general policy. - * - * Allocation policy determines whether or not a container may allocate - * resources from its parent. Each container has a 'global' allocation policy - * that is set when the container is created. - * - * This function sets allocation policy for a specific resource type. - * The default policy for all resource types matches the container's 'global' - * allocation policy. - * - * Return: '0' on Success; Error code otherwise. - * - * @warning Only the parent container is allowed to change a child policy. - */ -int dprc_set_res_quota(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - int child_container_id, - char *type, - u16 quota) -{ - struct mc_command cmd = { 0 }; - struct dprc_cmd_set_res_quota *cmd_params; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPRC_CMDID_SET_RES_QUOTA, - cmd_flags, token); - cmd_params = (struct dprc_cmd_set_res_quota *)cmd.params; - cmd_params->child_container_id = cpu_to_le32(child_container_id); - cmd_params->quota = cpu_to_le16(quota); - strncpy(cmd_params->type, type, 16); - cmd_params->type[15] = '\0'; - - /* send command to mc*/ - return mc_send_command(mc_io, &cmd); -} - -/** - * dprc_get_res_quota() - Gets the allocation policy of a specific - * resource/object type in a child container - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPRC object - * @child_container_id; ID of the child container - * @type: resource/object type - * @quota: Returnes the maximum number of resources of the selected type - * that the child container is allowed to allocate from the parent; - * when quota is set to -1, the policy is the same as container's - * general policy. - * - * Return: '0' on Success; Error code otherwise. - */ -int dprc_get_res_quota(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - int child_container_id, - char *type, - u16 *quota) -{ - struct mc_command cmd = { 0 }; - struct dprc_cmd_get_res_quota *cmd_params; - struct dprc_rsp_get_res_quota *rsp_params; - int err; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_RES_QUOTA, - cmd_flags, token); - cmd_params = (struct dprc_cmd_get_res_quota *)cmd.params; - cmd_params->child_container_id = cpu_to_le32(child_container_id); - strncpy(cmd_params->type, type, 16); - cmd_params->type[15] = '\0'; - - /* send command to mc*/ - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - rsp_params = (struct dprc_rsp_get_res_quota *)cmd.params; - *quota = le16_to_cpu(rsp_params->quota); - - return 0; -} - -/** - * dprc_assign() - Assigns objects or resource to a child container. - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPRC object - * @container_id: ID of the child container - * @res_req: Describes the type and amount of resources to - * assign to the given container - * - * Assignment is usually done by a parent (this DPRC) to one of its child - * containers. - * - * According to the DPRC allocation policy, the assigned resources may be taken - * (allocated) from the container's ancestors, if not enough resources are - * available in the container itself. - * - * The type of assignment depends on the dprc_res_req options, as follows: - * - DPRC_RES_REQ_OPT_EXPLICIT: indicates that assigned resources should have - * the explicit base ID specified at the id_base_align field of res_req. - * - DPRC_RES_REQ_OPT_ALIGNED: indicates that the assigned resources should be - * aligned to the value given at id_base_align field of res_req. - * - DPRC_RES_REQ_OPT_PLUGGED: Relevant only for object assignment, - * and indicates that the object must be set to the plugged state. - * - * A container may use this function with its own ID in order to change a - * object state to plugged or unplugged. - * - * If IRQ information has been set in the child DPRC, it will signal an - * interrupt following every change in its object assignment. - * - * Return: '0' on Success; Error code otherwise. - */ -int dprc_assign(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - int container_id, - struct dprc_res_req *res_req) -{ - struct mc_command cmd = { 0 }; - struct dprc_cmd_assign *cmd_params; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPRC_CMDID_ASSIGN, - cmd_flags, token); - cmd_params = (struct dprc_cmd_assign *)cmd.params; - cmd_params->container_id = cpu_to_le32(container_id); - cmd_params->options = cpu_to_le32(res_req->options); - cmd_params->num = cpu_to_le32(res_req->num); - cmd_params->id_base_align = cpu_to_le32(res_req->id_base_align); - strncpy(cmd_params->type, res_req->type, 16); - cmd_params->type[15] = '\0'; - - /* send command to mc*/ - return mc_send_command(mc_io, &cmd); -} - -/** - * dprc_unassign() - Un-assigns objects or resources from a child container - * and moves them into this (parent) DPRC. - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPRC object - * @child_container_id: ID of the child container - * @res_req: Describes the type and amount of resources to un-assign from - * the child container - * - * Un-assignment of objects can succeed only if the object is not in the - * plugged or opened state. - * - * Return: '0' on Success; Error code otherwise. - */ -int dprc_unassign(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - int child_container_id, - struct dprc_res_req *res_req) -{ - struct mc_command cmd = { 0 }; - struct dprc_cmd_unassign *cmd_params; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPRC_CMDID_UNASSIGN, - cmd_flags, - token); - cmd_params = (struct dprc_cmd_unassign *)cmd.params; - cmd_params->child_container_id = cpu_to_le32(child_container_id); - cmd_params->options = cpu_to_le32(res_req->options); - cmd_params->num = cpu_to_le32(res_req->num); - cmd_params->id_base_align = cpu_to_le32(res_req->id_base_align); - strncpy(cmd_params->type, res_req->type, 16); - cmd_params->type[15] = '\0'; - - /* send command to mc*/ - return mc_send_command(mc_io, &cmd); -} - -/** - * dprc_get_pool_count() - Get the number of dprc's pools - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @mc_io: Pointer to MC portal's I/O object - * @token: Token of DPRC object - * @pool_count: Returned number of resource pools in the dprc - * - * Return: '0' on Success; Error code otherwise. - */ -int dprc_get_pool_count(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - int *pool_count) -{ - struct mc_command cmd = { 0 }; - struct dprc_rsp_get_pool_count *rsp_params; - int err; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_POOL_COUNT, - cmd_flags, token); - - /* send command to mc*/ - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - rsp_params = (struct dprc_rsp_get_pool_count *)cmd.params; - *pool_count = le32_to_cpu(rsp_params->pool_count); - - return 0; -} - -/** - * dprc_get_pool() - Get the type (string) of a certain dprc's pool - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPRC object - * @pool_index; Index of the pool to be queried (< pool_count) - * @type: The type of the pool - * - * The pool types retrieved one by one by incrementing - * pool_index up to (not including) the value of pool_count returned - * from dprc_get_pool_count(). dprc_get_pool_count() must - * be called prior to dprc_get_pool(). - * - * Return: '0' on Success; Error code otherwise. - */ -int dprc_get_pool(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - int pool_index, - char *type) -{ - struct mc_command cmd = { 0 }; - struct dprc_cmd_get_pool *cmd_params; - struct dprc_rsp_get_pool *rsp_params; - int err; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_POOL, - cmd_flags, - token); - cmd_params = (struct dprc_cmd_get_pool *)cmd.params; - cmd_params->pool_index = cpu_to_le32(pool_index); - - /* send command to mc*/ - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - rsp_params = (struct dprc_rsp_get_pool *)cmd.params; - strncpy(type, rsp_params->type, 16); - type[15] = '\0'; return 0; } @@ -934,64 +574,6 @@ int dprc_get_obj(struct fsl_mc_io *mc_io EXPORT_SYMBOL(dprc_get_obj); /** - * dprc_get_obj_desc() - Get object descriptor. - * - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPRC object - * @obj_type: The type of the object to get its descriptor. - * @obj_id: The id of the object to get its descriptor - * @obj_desc: The returned descriptor to fill and return to the user - * - * Return: '0' on Success; Error code otherwise. - * - */ -int dprc_get_obj_desc(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - char *obj_type, - int obj_id, - struct dprc_obj_desc *obj_desc) -{ - struct mc_command cmd = { 0 }; - struct dprc_cmd_get_obj_desc *cmd_params; - struct dprc_rsp_get_obj_desc *rsp_params; - int err; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_OBJ_DESC, - cmd_flags, - token); - cmd_params = (struct dprc_cmd_get_obj_desc *)cmd.params; - cmd_params->obj_id = cpu_to_le32(obj_id); - strncpy(cmd_params->type, obj_type, 16); - cmd_params->type[15] = '\0'; - - /* send command to mc*/ - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - rsp_params = (struct dprc_rsp_get_obj_desc *)cmd.params; - obj_desc->id = le32_to_cpu(rsp_params->id); - obj_desc->vendor = le16_to_cpu(rsp_params->vendor); - obj_desc->irq_count = rsp_params->irq_count; - obj_desc->region_count = rsp_params->region_count; - obj_desc->state = le32_to_cpu(rsp_params->state); - obj_desc->ver_major = le16_to_cpu(rsp_params->version_major); - obj_desc->ver_minor = le16_to_cpu(rsp_params->version_minor); - obj_desc->flags = le16_to_cpu(rsp_params->flags); - strncpy(obj_desc->type, rsp_params->type, 16); - obj_desc->type[15] = '\0'; - strncpy(obj_desc->label, rsp_params->label, 16); - obj_desc->label[15] = '\0'; - - return 0; -} -EXPORT_SYMBOL(dprc_get_obj_desc); - -/** * dprc_set_obj_irq() - Set IRQ information for object to trigger an interrupt. * @mc_io: Pointer to MC portal's I/O object * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' @@ -1130,52 +712,6 @@ int dprc_get_res_count(struct fsl_mc_io EXPORT_SYMBOL(dprc_get_res_count); /** - * dprc_get_res_ids() - Obtains IDs of free resources in the container - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPRC object - * @type: pool type - * @range_desc: range descriptor - * - * Return: '0' on Success; Error code otherwise. - */ -int dprc_get_res_ids(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - char *type, - struct dprc_res_ids_range_desc *range_desc) -{ - struct mc_command cmd = { 0 }; - struct dprc_cmd_get_res_ids *cmd_params; - struct dprc_rsp_get_res_ids *rsp_params; - int err; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_RES_IDS, - cmd_flags, token); - cmd_params = (struct dprc_cmd_get_res_ids *)cmd.params; - cmd_params->iter_status = range_desc->iter_status; - cmd_params->base_id = cpu_to_le32(range_desc->base_id); - cmd_params->last_id = cpu_to_le32(range_desc->last_id); - strncpy(cmd_params->type, type, 16); - cmd_params->type[15] = '\0'; - - /* send command to mc*/ - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - rsp_params = (struct dprc_rsp_get_res_ids *)cmd.params; - range_desc->iter_status = rsp_params->iter_status; - range_desc->base_id = le32_to_cpu(rsp_params->base_id); - range_desc->last_id = le32_to_cpu(rsp_params->last_id); - - return 0; -} -EXPORT_SYMBOL(dprc_get_res_ids); - -/** * dprc_get_obj_region() - Get region information for a specified object. * @mc_io: Pointer to MC portal's I/O object * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' @@ -1216,160 +752,66 @@ int dprc_get_obj_region(struct fsl_mc_io /* retrieve response parameters */ rsp_params = (struct dprc_rsp_get_obj_region *)cmd.params; - region_desc->base_offset = le64_to_cpu(rsp_params->base_addr); + region_desc->base_offset = le32_to_cpu(rsp_params->base_addr); region_desc->size = le32_to_cpu(rsp_params->size); + region_desc->type = rsp_params->type; + region_desc->flags = le32_to_cpu(rsp_params->flags); return 0; } EXPORT_SYMBOL(dprc_get_obj_region); /** - * dprc_set_obj_label() - Set object label. - * @mc_io: Pointer to MC portal's I/O object + * dprc_get_api_version - Get Data Path Resource Container API version + * @mc_io: Pointer to Mc portal's I/O object * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPRC object - * @obj_type: Object's type - * @obj_id: Object's ID - * @label: The required label. The maximum length is 16 chars. + * @major_ver: Major version of Data Path Resource Container API + * @minor_ver: Minor version of Data Path Resource Container API * * Return: '0' on Success; Error code otherwise. */ -int dprc_set_obj_label(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - char *obj_type, - int obj_id, - char *label) +int dprc_get_api_version(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 *major_ver, + u16 *minor_ver) { struct mc_command cmd = { 0 }; - struct dprc_cmd_set_obj_label *cmd_params; + int err; /* prepare command */ - cmd.header = mc_encode_cmd_header(DPRC_CMDID_SET_OBJ_LABEL, - cmd_flags, - token); - cmd_params = (struct dprc_cmd_set_obj_label *)cmd.params; - cmd_params->obj_id = cpu_to_le32(obj_id); - strncpy(cmd_params->label, label, 16); - cmd_params->label[15] = '\0'; - strncpy(cmd_params->obj_type, obj_type, 16); - cmd_params->obj_type[15] = '\0'; + cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_API_VERSION, + cmd_flags, 0); - /* send command to mc*/ - return mc_send_command(mc_io, &cmd); -} -EXPORT_SYMBOL(dprc_set_obj_label); - -/** - * dprc_connect() - Connect two endpoints to create a network link between them - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPRC object - * @endpoint1: Endpoint 1 configuration parameters - * @endpoint2: Endpoint 2 configuration parameters - * @cfg: Connection configuration. The connection configuration is ignored for - * connections made to DPMAC objects, where rate is retrieved from the - * MAC configuration. - * - * Return: '0' on Success; Error code otherwise. - */ -int dprc_connect(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - const struct dprc_endpoint *endpoint1, - const struct dprc_endpoint *endpoint2, - const struct dprc_connection_cfg *cfg) -{ - struct mc_command cmd = { 0 }; - struct dprc_cmd_connect *cmd_params; + /* send command to mc */ + err = mc_send_command(mc_io, &cmd); + if (err) + return err; - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPRC_CMDID_CONNECT, - cmd_flags, - token); - cmd_params = (struct dprc_cmd_connect *)cmd.params; - cmd_params->ep1_id = cpu_to_le32(endpoint1->id); - cmd_params->ep1_interface_id = cpu_to_le32(endpoint1->if_id); - cmd_params->ep2_id = cpu_to_le32(endpoint2->id); - cmd_params->ep2_interface_id = cpu_to_le32(endpoint2->if_id); - strncpy(cmd_params->ep1_type, endpoint1->type, 16); - cmd_params->ep1_type[15] = '\0'; - cmd_params->max_rate = cpu_to_le32(cfg->max_rate); - cmd_params->committed_rate = cpu_to_le32(cfg->committed_rate); - strncpy(cmd_params->ep2_type, endpoint2->type, 16); - cmd_params->ep2_type[15] = '\0'; + /* retrieve response parameters */ + mc_cmd_read_api_version(&cmd, major_ver, minor_ver); - /* send command to mc*/ - return mc_send_command(mc_io, &cmd); + return 0; } /** - * dprc_disconnect() - Disconnect one endpoint to remove its network connection - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPRC object - * @endpoint: Endpoint configuration parameters + * dprc_get_container_id - Get container ID associated with a given portal. + * @mc_io: Pointer to Mc portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @container_id: Requested container id * * Return: '0' on Success; Error code otherwise. */ -int dprc_disconnect(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - const struct dprc_endpoint *endpoint) -{ - struct mc_command cmd = { 0 }; - struct dprc_cmd_disconnect *cmd_params; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPRC_CMDID_DISCONNECT, - cmd_flags, - token); - cmd_params = (struct dprc_cmd_disconnect *)cmd.params; - cmd_params->id = cpu_to_le32(endpoint->id); - cmd_params->interface_id = cpu_to_le32(endpoint->if_id); - strncpy(cmd_params->type, endpoint->type, 16); - cmd_params->type[15] = '\0'; - - /* send command to mc*/ - return mc_send_command(mc_io, &cmd); -} - -/** - * dprc_get_connection() - Get connected endpoint and link status if connection - * exists. - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPRC object - * @endpoint1: Endpoint 1 configuration parameters - * @endpoint2: Returned endpoint 2 configuration parameters - * @state: Returned link state: - * 1 - link is up; - * 0 - link is down; - * -1 - no connection (endpoint2 information is irrelevant) - * - * Return: '0' on Success; -ENAVAIL if connection does not exist. - */ -int dprc_get_connection(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - const struct dprc_endpoint *endpoint1, - struct dprc_endpoint *endpoint2, - int *state) +int dprc_get_container_id(struct fsl_mc_io *mc_io, + u32 cmd_flags, + int *container_id) { struct mc_command cmd = { 0 }; - struct dprc_cmd_get_connection *cmd_params; - struct dprc_rsp_get_connection *rsp_params; int err; /* prepare command */ - cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_CONNECTION, + cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_CONT_ID, cmd_flags, - token); - cmd_params = (struct dprc_cmd_get_connection *)cmd.params; - cmd_params->ep1_id = cpu_to_le32(endpoint1->id); - cmd_params->ep1_interface_id = cpu_to_le32(endpoint1->if_id); - strncpy(cmd_params->ep1_type, endpoint1->type, 16); - cmd_params->ep1_type[15] = '\0'; + 0); /* send command to mc*/ err = mc_send_command(mc_io, &cmd); @@ -1377,12 +819,7 @@ int dprc_get_connection(struct fsl_mc_io return err; /* retrieve response parameters */ - rsp_params = (struct dprc_rsp_get_connection *)cmd.params; - endpoint2->id = le32_to_cpu(rsp_params->ep2_id); - endpoint2->if_id = le32_to_cpu(rsp_params->ep2_interface_id); - strncpy(endpoint2->type, rsp_params->ep2_type, 16); - endpoint2->type[15] = '\0'; - *state = le32_to_cpu(rsp_params->state); + *container_id = (int)mc_cmd_read_object_id(&cmd); return 0; } --- a/drivers/staging/fsl-mc/bus/fsl-mc-allocator.c +++ b/drivers/staging/fsl-mc/bus/fsl-mc-allocator.c @@ -1,7 +1,7 @@ /* - * Freescale MC object device allocator driver + * fsl-mc object allocator driver * - * Copyright (C) 2013 Freescale Semiconductor, Inc. + * Copyright (C) 2013-2016 Freescale Semiconductor, Inc. * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any @@ -12,9 +12,9 @@ #include #include "../include/mc-bus.h" #include "../include/mc-sys.h" -#include "../include/dpbp-cmd.h" -#include "../include/dpcon-cmd.h" +#include "dpbp-cmd.h" +#include "dpcon-cmd.h" #include "fsl-mc-private.h" #define FSL_MC_IS_ALLOCATABLE(_obj_type) \ @@ -23,15 +23,12 @@ strcmp(_obj_type, "dpcon") == 0) /** - * fsl_mc_resource_pool_add_device - add allocatable device to a resource - * pool of a given MC bus + * fsl_mc_resource_pool_add_device - add allocatable object to a resource + * pool of a given fsl-mc bus * - * @mc_bus: pointer to the MC bus - * @pool_type: MC bus pool type - * @mc_dev: Pointer to allocatable MC object device - * - * It adds an allocatable MC object device to a container's resource pool of - * the given resource type + * @mc_bus: pointer to the fsl-mc bus + * @pool_type: pool type + * @mc_dev: pointer to allocatable fsl-mc device */ static int __must_check fsl_mc_resource_pool_add_device(struct fsl_mc_bus *mc_bus, @@ -95,10 +92,10 @@ out: * fsl_mc_resource_pool_remove_device - remove an allocatable device from a * resource pool * - * @mc_dev: Pointer to allocatable MC object device + * @mc_dev: pointer to allocatable fsl-mc device * - * It permanently removes an allocatable MC object device from the resource - * pool, the device is currently in, as long as it is in the pool's free list. + * It permanently removes an allocatable fsl-mc device from the resource + * pool. It's an error if the device is in use. */ static int __must_check fsl_mc_resource_pool_remove_device(struct fsl_mc_device *mc_dev) @@ -255,17 +252,18 @@ out_unlock: EXPORT_SYMBOL_GPL(fsl_mc_resource_free); /** - * fsl_mc_object_allocate - Allocates a MC object device of the given - * pool type from a given MC bus + * fsl_mc_object_allocate - Allocates an fsl-mc object of the given + * pool type from a given fsl-mc bus instance * - * @mc_dev: MC device for which the MC object device is to be allocated - * @pool_type: MC bus resource pool type - * @new_mc_dev: Pointer to area where the pointer to the allocated - * MC object device is to be returned + * @mc_dev: fsl-mc device which is used in conjunction with the + * allocated object + * @pool_type: pool type + * @new_mc_dev: pointer to area where the pointer to the allocated device + * is to be returned * - * This function allocates a MC object device from the device's parent DPRC, - * from the corresponding MC bus' pool of allocatable MC object devices of - * the given resource type. mc_dev cannot be a DPRC itself. + * Allocatable objects are always used in conjunction with some functional + * device. This function allocates an object of the specified type from + * the DPRC containing the functional device. * * NOTE: pool_type must be different from FSL_MC_POOL_MCP, since MC * portals are allocated using fsl_mc_portal_allocate(), instead of @@ -312,10 +310,9 @@ error: EXPORT_SYMBOL_GPL(fsl_mc_object_allocate); /** - * fsl_mc_object_free - Returns an allocatable MC object device to the - * corresponding resource pool of a given MC bus. - * - * @mc_adev: Pointer to the MC object device + * fsl_mc_object_free - Returns an fsl-mc object to the resource + * pool where it came from. + * @mc_adev: Pointer to the fsl-mc device */ void fsl_mc_object_free(struct fsl_mc_device *mc_adev) { @@ -332,8 +329,14 @@ void fsl_mc_object_free(struct fsl_mc_de EXPORT_SYMBOL_GPL(fsl_mc_object_free); /* - * Initialize the interrupt pool associated with a MC bus. - * It allocates a block of IRQs from the GIC-ITS + * A DPRC and the devices in the DPRC all share the same GIC-ITS device + * ID. A block of IRQs is pre-allocated and maintained in a pool + * from which devices can allocate them when needed. + */ + +/* + * Initialize the interrupt pool associated with an fsl-mc bus. + * It allocates a block of IRQs from the GIC-ITS. */ int fsl_mc_populate_irq_pool(struct fsl_mc_bus *mc_bus, unsigned int irq_count) @@ -395,7 +398,7 @@ cleanup_msi_irqs: EXPORT_SYMBOL_GPL(fsl_mc_populate_irq_pool); /** - * Teardown the interrupt pool associated with an MC bus. + * Teardown the interrupt pool associated with an fsl-mc bus. * It frees the IRQs that were allocated to the pool, back to the GIC-ITS. */ void fsl_mc_cleanup_irq_pool(struct fsl_mc_bus *mc_bus) @@ -422,11 +425,7 @@ void fsl_mc_cleanup_irq_pool(struct fsl_ EXPORT_SYMBOL_GPL(fsl_mc_cleanup_irq_pool); /** - * It allocates the IRQs required by a given MC object device. The - * IRQs are allocated from the interrupt pool associated with the - * MC bus that contains the device, if the device is not a DPRC device. - * Otherwise, the IRQs are allocated from the interrupt pool associated - * with the MC bus that represents the DPRC device itself. + * Allocate the IRQs required by a given fsl-mc device. */ int __must_check fsl_mc_allocate_irqs(struct fsl_mc_device *mc_dev) { @@ -495,8 +494,7 @@ error_resource_alloc: EXPORT_SYMBOL_GPL(fsl_mc_allocate_irqs); /* - * It frees the IRQs that were allocated for a MC object device, by - * returning them to the corresponding interrupt pool. + * Frees the IRQs that were allocated for an fsl-mc device. */ void fsl_mc_free_irqs(struct fsl_mc_device *mc_dev) { @@ -605,7 +603,7 @@ static int fsl_mc_allocator_probe(struct return error; dev_dbg(&mc_dev->dev, - "Allocatable MC object device bound to fsl_mc_allocator driver"); + "Allocatable fsl-mc device bound to fsl_mc_allocator driver"); return 0; } @@ -627,7 +625,7 @@ static int fsl_mc_allocator_remove(struc } dev_dbg(&mc_dev->dev, - "Allocatable MC object device unbound from fsl_mc_allocator driver"); + "Allocatable fsl-mc device unbound from fsl_mc_allocator driver"); return 0; } --- a/drivers/staging/fsl-mc/bus/fsl-mc-bus.c +++ b/drivers/staging/fsl-mc/bus/fsl-mc-bus.c @@ -1,7 +1,7 @@ /* * Freescale Management Complex (MC) bus driver * - * Copyright (C) 2014 Freescale Semiconductor, Inc. + * Copyright (C) 2014-2016 Freescale Semiconductor, Inc. * Author: German Rivera * * This file is licensed under the terms of the GNU General Public @@ -9,6 +9,8 @@ * warranty of any kind, whether express or implied. */ +#define pr_fmt(fmt) "fsl-mc: " fmt + #include #include #include @@ -25,8 +27,6 @@ #include "fsl-mc-private.h" #include "dprc-cmd.h" -static struct kmem_cache *mc_dev_cache; - /** * Default DMA mask for devices on a fsl-mc bus */ @@ -34,7 +34,7 @@ static struct kmem_cache *mc_dev_cache; /** * struct fsl_mc - Private data of a "fsl,qoriq-mc" platform device - * @root_mc_bus_dev: MC object device representing the root DPRC + * @root_mc_bus_dev: fsl-mc device representing the root DPRC * @num_translation_ranges: number of entries in addr_translation_ranges * @translation_ranges: array of bus to system address translation ranges */ @@ -62,8 +62,8 @@ struct fsl_mc_addr_translation_range { /** * fsl_mc_bus_match - device to driver matching callback - * @dev: the MC object device structure to match against - * @drv: the device driver to search for matching MC object device id + * @dev: the fsl-mc device to match against + * @drv: the device driver to search for matching fsl-mc object type * structures * * Returns 1 on success, 0 otherwise. @@ -75,8 +75,11 @@ static int fsl_mc_bus_match(struct devic struct fsl_mc_driver *mc_drv = to_fsl_mc_driver(drv); bool found = false; - if (WARN_ON(!fsl_mc_bus_exists())) + /* When driver_override is set, only bind to the matching driver */ + if (mc_dev->driver_override) { + found = !strcmp(mc_dev->driver_override, mc_drv->driver.name); goto out; + } if (!mc_drv->match_id_table) goto out; @@ -91,7 +94,7 @@ static int fsl_mc_bus_match(struct devic /* * Traverse the match_id table of the given driver, trying to find - * a matching for the given MC object device. + * a matching for the given device. */ for (id = mc_drv->match_id_table; id->vendor != 0x0; id++) { if (id->vendor == mc_dev->obj_desc.vendor && @@ -132,23 +135,141 @@ static ssize_t modalias_show(struct devi } static DEVICE_ATTR_RO(modalias); +static ssize_t rescan_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + unsigned long val; + unsigned int irq_count; + struct fsl_mc_device *root_mc_dev; + struct fsl_mc_bus *root_mc_bus; + + if (!fsl_mc_is_root_dprc(dev)) + return -EINVAL; + + root_mc_dev = to_fsl_mc_device(dev); + root_mc_bus = to_fsl_mc_bus(root_mc_dev); + + if (kstrtoul(buf, 0, &val) < 0) + return -EINVAL; + + if (val) { + mutex_lock(&root_mc_bus->scan_mutex); + dprc_scan_objects(root_mc_dev, NULL, &irq_count); + mutex_unlock(&root_mc_bus->scan_mutex); + } + + return count; +} +static DEVICE_ATTR_WO(rescan); + +static ssize_t driver_override_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev); + const char *driver_override, *old = mc_dev->driver_override; + char *cp; + + if (WARN_ON(dev->bus != &fsl_mc_bus_type)) + return -EINVAL; + + if (count >= (PAGE_SIZE - 1)) + return -EINVAL; + + driver_override = kstrndup(buf, count, GFP_KERNEL); + if (!driver_override) + return -ENOMEM; + + cp = strchr(driver_override, '\n'); + if (cp) + *cp = '\0'; + + if (strlen(driver_override)) { + mc_dev->driver_override = driver_override; + } else { + kfree(driver_override); + mc_dev->driver_override = NULL; + } + + kfree(old); + + return count; +} + +static ssize_t driver_override_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev); + + return snprintf(buf, PAGE_SIZE, "%s\n", mc_dev->driver_override); +} +static DEVICE_ATTR_RW(driver_override); + static struct attribute *fsl_mc_dev_attrs[] = { &dev_attr_modalias.attr, + &dev_attr_rescan.attr, + &dev_attr_driver_override.attr, NULL, }; ATTRIBUTE_GROUPS(fsl_mc_dev); +static int scan_fsl_mc_bus(struct device *dev, void *data) +{ + unsigned int irq_count; + struct fsl_mc_device *root_mc_dev; + struct fsl_mc_bus *root_mc_bus; + + if (fsl_mc_is_root_dprc(dev)) { + root_mc_dev = to_fsl_mc_device(dev); + root_mc_bus = to_fsl_mc_bus(root_mc_dev); + mutex_lock(&root_mc_bus->scan_mutex); + dprc_scan_objects(root_mc_dev, NULL, &irq_count); + mutex_unlock(&root_mc_bus->scan_mutex); + } + + return 0; +} + +static ssize_t bus_rescan_store(struct bus_type *bus, + const char *buf, size_t count) +{ + unsigned long val; + + if (kstrtoul(buf, 0, &val) < 0) + return -EINVAL; + + if (val) + bus_for_each_dev(bus, NULL, NULL, scan_fsl_mc_bus); + + return count; +} +static BUS_ATTR(rescan, (S_IWUSR | S_IWGRP), NULL, bus_rescan_store); + +static struct attribute *fsl_mc_bus_attrs[] = { + &bus_attr_rescan.attr, + NULL, +}; + +static const struct attribute_group fsl_mc_bus_group = { + .attrs = fsl_mc_bus_attrs, +}; + +static const struct attribute_group *fsl_mc_bus_groups[] = { + &fsl_mc_bus_group, + NULL, +}; + struct bus_type fsl_mc_bus_type = { .name = "fsl-mc", .match = fsl_mc_bus_match, .uevent = fsl_mc_bus_uevent, .dev_groups = fsl_mc_dev_groups, + .bus_groups = fsl_mc_bus_groups, }; EXPORT_SYMBOL_GPL(fsl_mc_bus_type); -static atomic_t root_dprc_count = ATOMIC_INIT(0); - static int fsl_mc_driver_probe(struct device *dev) { struct fsl_mc_driver *mc_drv; @@ -164,8 +285,7 @@ static int fsl_mc_driver_probe(struct de error = mc_drv->probe(mc_dev); if (error < 0) { - dev_err(dev, "MC object device probe callback failed: %d\n", - error); + dev_err(dev, "%s failed: %d\n", __func__, error); return error; } @@ -183,9 +303,7 @@ static int fsl_mc_driver_remove(struct d error = mc_drv->remove(mc_dev); if (error < 0) { - dev_err(dev, - "MC object device remove callback failed: %d\n", - error); + dev_err(dev, "%s failed: %d\n", __func__, error); return error; } @@ -232,8 +350,6 @@ int __fsl_mc_driver_register(struct fsl_ return error; } - pr_info("MC object device driver %s registered\n", - mc_driver->driver.name); return 0; } EXPORT_SYMBOL_GPL(__fsl_mc_driver_register); @@ -249,15 +365,6 @@ void fsl_mc_driver_unregister(struct fsl EXPORT_SYMBOL_GPL(fsl_mc_driver_unregister); /** - * fsl_mc_bus_exists - check if a root dprc exists - */ -bool fsl_mc_bus_exists(void) -{ - return atomic_read(&root_dprc_count) > 0; -} -EXPORT_SYMBOL_GPL(fsl_mc_bus_exists); - -/** * fsl_mc_get_root_dprc - function to traverse to the root dprc */ void fsl_mc_get_root_dprc(struct device *dev, @@ -315,21 +422,6 @@ static int get_dprc_icid(struct fsl_mc_i return error; } -static int get_dprc_version(struct fsl_mc_io *mc_io, - int container_id, u16 *major, u16 *minor) -{ - struct dprc_attributes attr; - int error; - - error = get_dprc_attr(mc_io, container_id, &attr); - if (error == 0) { - *major = attr.version.major; - *minor = attr.version.minor; - } - - return error; -} - static int translate_mc_addr(struct fsl_mc_device *mc_dev, enum dprc_region_type mc_region_type, u64 mc_offset, phys_addr_t *phys_addr) @@ -451,18 +543,37 @@ bool fsl_mc_is_root_dprc(struct device * return dev == root_dprc_dev; } +static void fsl_mc_device_release(struct device *dev) +{ + struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev); + struct fsl_mc_bus *mc_bus = NULL; + + kfree(mc_dev->regions); + + if (strcmp(mc_dev->obj_desc.type, "dprc") == 0) + mc_bus = to_fsl_mc_bus(mc_dev); + + if (mc_bus) + kfree(mc_bus); + else + kfree(mc_dev); +} + /** - * Add a newly discovered MC object device to be visible in Linux + * Add a newly discovered fsl-mc device to be visible in Linux */ int fsl_mc_device_add(struct dprc_obj_desc *obj_desc, struct fsl_mc_io *mc_io, struct device *parent_dev, + const char *driver_override, struct fsl_mc_device **new_mc_dev) { int error; struct fsl_mc_device *mc_dev = NULL; struct fsl_mc_bus *mc_bus = NULL; struct fsl_mc_device *parent_mc_dev; + struct device *fsl_mc_platform_dev; + struct device_node *fsl_mc_platform_node; if (dev_is_fsl_mc(parent_dev)) parent_mc_dev = to_fsl_mc_device(parent_dev); @@ -473,7 +584,7 @@ int fsl_mc_device_add(struct dprc_obj_de /* * Allocate an MC bus device object: */ - mc_bus = devm_kzalloc(parent_dev, sizeof(*mc_bus), GFP_KERNEL); + mc_bus = kzalloc(sizeof(*mc_bus), GFP_KERNEL); if (!mc_bus) return -ENOMEM; @@ -482,16 +593,30 @@ int fsl_mc_device_add(struct dprc_obj_de /* * Allocate a regular fsl_mc_device object: */ - mc_dev = kmem_cache_zalloc(mc_dev_cache, GFP_KERNEL); + mc_dev = kzalloc(sizeof(*mc_dev), GFP_KERNEL); if (!mc_dev) return -ENOMEM; } mc_dev->obj_desc = *obj_desc; mc_dev->mc_io = mc_io; + + if (driver_override) { + /* + * We trust driver_override, so we don't need to use + * kstrndup() here + */ + mc_dev->driver_override = kstrdup(driver_override, GFP_KERNEL); + if (!mc_dev->driver_override) { + error = -ENOMEM; + goto error_cleanup_dev; + } + } + device_initialize(&mc_dev->dev); mc_dev->dev.parent = parent_dev; mc_dev->dev.bus = &fsl_mc_bus_type; + mc_dev->dev.release = fsl_mc_device_release; dev_set_name(&mc_dev->dev, "%s.%d", obj_desc->type, obj_desc->id); if (strcmp(obj_desc->type, "dprc") == 0) { @@ -524,8 +649,6 @@ int fsl_mc_device_add(struct dprc_obj_de } mc_io2 = mc_io; - - atomic_inc(&root_dprc_count); } error = get_dprc_icid(mc_io2, obj_desc->id, &mc_dev->icid); @@ -533,8 +656,8 @@ int fsl_mc_device_add(struct dprc_obj_de goto error_cleanup_dev; } else { /* - * A non-DPRC MC object device has to be a child of another - * MC object (specifically a DPRC object) + * A non-DPRC object has to be a child of a DPRC, use the + * parent's ICID and interrupt domain. */ mc_dev->icid = parent_mc_dev->icid; mc_dev->dma_mask = FSL_MC_DEFAULT_DMA_MASK; @@ -556,9 +679,14 @@ int fsl_mc_device_add(struct dprc_obj_de goto error_cleanup_dev; } - /* Objects are coherent, unless 'no shareability' flag set. */ - if (!(obj_desc->flags & DPRC_OBJ_FLAG_NO_MEM_SHAREABILITY)) - arch_setup_dma_ops(&mc_dev->dev, 0, 0, NULL, true); + fsl_mc_platform_dev = &mc_dev->dev; + while (dev_is_fsl_mc(fsl_mc_platform_dev)) + fsl_mc_platform_dev = fsl_mc_platform_dev->parent; + fsl_mc_platform_node = fsl_mc_platform_dev->of_node; + + /* Set up the iommu configuration for the devices. */ + fsl_mc_dma_configure(mc_dev, fsl_mc_platform_node, + !(obj_desc->flags & DPRC_OBJ_FLAG_NO_MEM_SHAREABILITY)); /* * The device-specific probe callback will get invoked by device_add() @@ -571,9 +699,7 @@ int fsl_mc_device_add(struct dprc_obj_de goto error_cleanup_dev; } - (void)get_device(&mc_dev->dev); - dev_dbg(parent_dev, "Added MC object device %s\n", - dev_name(&mc_dev->dev)); + dev_dbg(parent_dev, "added %s\n", dev_name(&mc_dev->dev)); *new_mc_dev = mc_dev; return 0; @@ -581,47 +707,34 @@ int fsl_mc_device_add(struct dprc_obj_de error_cleanup_dev: kfree(mc_dev->regions); if (mc_bus) - devm_kfree(parent_dev, mc_bus); + kfree(mc_bus); else - kmem_cache_free(mc_dev_cache, mc_dev); + kfree(mc_dev); return error; } EXPORT_SYMBOL_GPL(fsl_mc_device_add); /** - * fsl_mc_device_remove - Remove a MC object device from being visible to + * fsl_mc_device_remove - Remove an fsl-mc device from being visible to * Linux * - * @mc_dev: Pointer to a MC object device object + * @mc_dev: Pointer to an fsl-mc device */ void fsl_mc_device_remove(struct fsl_mc_device *mc_dev) { - struct fsl_mc_bus *mc_bus = NULL; - - kfree(mc_dev->regions); + kfree(mc_dev->driver_override); + mc_dev->driver_override = NULL; /* * The device-specific remove callback will get invoked by device_del() */ device_del(&mc_dev->dev); - put_device(&mc_dev->dev); - if (strcmp(mc_dev->obj_desc.type, "dprc") == 0) { - mc_bus = to_fsl_mc_bus(mc_dev); - - if (fsl_mc_is_root_dprc(&mc_dev->dev)) { - if (atomic_read(&root_dprc_count) > 0) - atomic_dec(&root_dprc_count); - else - WARN_ON(1); - } - } + if (strcmp(mc_dev->obj_desc.type, "dprc") != 0) + mc_dev->dev.iommu_fwspec = NULL; - if (mc_bus) - devm_kfree(mc_dev->dev.parent, mc_bus); - else - kmem_cache_free(mc_dev_cache, mc_dev); + put_device(&mc_dev->dev); } EXPORT_SYMBOL_GPL(fsl_mc_device_remove); @@ -629,8 +742,7 @@ static int parse_mc_ranges(struct device int *paddr_cells, int *mc_addr_cells, int *mc_size_cells, - const __be32 **ranges_start, - u8 *num_ranges) + const __be32 **ranges_start) { const __be32 *prop; int range_tuple_cell_count; @@ -643,8 +755,6 @@ static int parse_mc_ranges(struct device dev_warn(dev, "missing or empty ranges property for device tree node '%s'\n", mc_node->name); - - *num_ranges = 0; return 0; } @@ -671,8 +781,7 @@ static int parse_mc_ranges(struct device return -EINVAL; } - *num_ranges = ranges_len / tuple_len; - return 0; + return ranges_len / tuple_len; } static int get_mc_addr_translation_ranges(struct device *dev, @@ -680,7 +789,7 @@ static int get_mc_addr_translation_range **ranges, u8 *num_ranges) { - int error; + int ret; int paddr_cells; int mc_addr_cells; int mc_size_cells; @@ -688,16 +797,16 @@ static int get_mc_addr_translation_range const __be32 *ranges_start; const __be32 *cell; - error = parse_mc_ranges(dev, + ret = parse_mc_ranges(dev, &paddr_cells, &mc_addr_cells, &mc_size_cells, - &ranges_start, - num_ranges); - if (error < 0) - return error; + &ranges_start); + if (ret < 0) + return ret; - if (!(*num_ranges)) { + *num_ranges = ret; + if (!ret) { /* * Missing or empty ranges property ("ranges;") for the * 'fsl,qoriq-mc' node. In this case, identity mapping @@ -749,8 +858,6 @@ static int fsl_mc_bus_probe(struct platf struct mc_version mc_version; struct resource res; - dev_info(&pdev->dev, "Root MC bus device probed"); - mc = devm_kzalloc(&pdev->dev, sizeof(*mc), GFP_KERNEL); if (!mc) return -ENOMEM; @@ -783,8 +890,7 @@ static int fsl_mc_bus_probe(struct platf goto error_cleanup_mc_io; } - dev_info(&pdev->dev, - "Freescale Management Complex Firmware version: %u.%u.%u\n", + dev_info(&pdev->dev, "MC firmware version: %u.%u.%u\n", mc_version.major, mc_version.minor, mc_version.revision); error = get_mc_addr_translation_ranges(&pdev->dev, @@ -793,16 +899,17 @@ static int fsl_mc_bus_probe(struct platf if (error < 0) goto error_cleanup_mc_io; - error = dpmng_get_container_id(mc_io, 0, &container_id); + error = dprc_get_container_id(mc_io, 0, &container_id); if (error < 0) { dev_err(&pdev->dev, - "dpmng_get_container_id() failed: %d\n", error); + "dprc_get_container_id() failed: %d\n", error); goto error_cleanup_mc_io; } memset(&obj_desc, 0, sizeof(struct dprc_obj_desc)); - error = get_dprc_version(mc_io, container_id, - &obj_desc.ver_major, &obj_desc.ver_minor); + error = dprc_get_api_version(mc_io, 0, + &obj_desc.ver_major, + &obj_desc.ver_minor); if (error < 0) goto error_cleanup_mc_io; @@ -812,7 +919,8 @@ static int fsl_mc_bus_probe(struct platf obj_desc.irq_count = 1; obj_desc.region_count = 0; - error = fsl_mc_device_add(&obj_desc, mc_io, &pdev->dev, &mc_bus_dev); + error = fsl_mc_device_add(&obj_desc, mc_io, &pdev->dev, NULL, + &mc_bus_dev); if (error < 0) goto error_cleanup_mc_io; @@ -840,7 +948,6 @@ static int fsl_mc_bus_remove(struct plat fsl_destroy_mc_io(mc->root_mc_bus_dev->mc_io); mc->root_mc_bus_dev->mc_io = NULL; - dev_info(&pdev->dev, "Root MC bus device removed"); return 0; } @@ -865,22 +972,12 @@ static int __init fsl_mc_bus_driver_init { int error; - mc_dev_cache = kmem_cache_create("fsl_mc_device", - sizeof(struct fsl_mc_device), 0, 0, - NULL); - if (!mc_dev_cache) { - pr_err("Could not create fsl_mc_device cache\n"); - return -ENOMEM; - } - error = bus_register(&fsl_mc_bus_type); if (error < 0) { - pr_err("fsl-mc bus type registration failed: %d\n", error); + pr_err("bus type registration failed: %d\n", error); goto error_cleanup_cache; } - pr_info("fsl-mc bus type registered\n"); - error = platform_driver_register(&fsl_mc_bus_driver); if (error < 0) { pr_err("platform_driver_register() failed: %d\n", error); @@ -914,7 +1011,6 @@ error_cleanup_bus: bus_unregister(&fsl_mc_bus_type); error_cleanup_cache: - kmem_cache_destroy(mc_dev_cache); return error; } postcore_initcall(fsl_mc_bus_driver_init); --- /dev/null +++ b/drivers/staging/fsl-mc/bus/fsl-mc-iommu.c @@ -0,0 +1,104 @@ +/* + * Copyright 2016-17 NXP + * Author: Nipun Gupta + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include +#include +#include +#include "../include/mc.h" + +/* Setup the IOMMU for the DPRC container */ +static const struct iommu_ops +*fsl_mc_iommu_configure(struct fsl_mc_device *mc_dev, + struct device_node *fsl_mc_platform_node) +{ + struct of_phandle_args iommu_spec; + const struct iommu_ops *ops; + u32 iommu_phandle; + struct device_node *iommu_node; + const __be32 *map = NULL; + int iommu_cells, map_len, ret; + + map = of_get_property(fsl_mc_platform_node, "iommu-map", &map_len); + if (!map) + return NULL; + + ops = mc_dev->dev.bus->iommu_ops; + if (!ops || !ops->of_xlate) + return NULL; + + iommu_phandle = be32_to_cpup(map + 1); + iommu_node = of_find_node_by_phandle(iommu_phandle); + + if (of_property_read_u32(iommu_node, "#iommu-cells", &iommu_cells)) { + pr_err("%s: missing #iommu-cells property\n", iommu_node->name); + return NULL; + } + + /* Initialize the fwspec */ + ret = iommu_fwspec_init(&mc_dev->dev, &iommu_node->fwnode, ops); + if (ret) + return NULL; + + /* + * Fill in the required stream-id before calling the iommu's + * ops->xlate callback. + */ + iommu_spec.np = iommu_node; + iommu_spec.args[0] = mc_dev->icid; + iommu_spec.args_count = 1; + + ret = ops->of_xlate(&mc_dev->dev, &iommu_spec); + if (ret) + return NULL; + + of_node_put(iommu_spec.np); + + return ops; +} + +/* Set up DMA configuration for fsl-mc devices */ +void fsl_mc_dma_configure(struct fsl_mc_device *mc_dev, + struct device_node *fsl_mc_platform_node, int coherent) +{ + const struct iommu_ops *ops; + + ops = fsl_mc_iommu_configure(mc_dev, fsl_mc_platform_node); + + mc_dev->dev.coherent_dma_mask = DMA_BIT_MASK(48); + mc_dev->dev.dma_mask = &mc_dev->dev.coherent_dma_mask; + arch_setup_dma_ops(&mc_dev->dev, 0, + mc_dev->dev.coherent_dma_mask + 1, ops, coherent); +} + +/* Macro to get the container device of a MC device */ +#define fsl_mc_cont_dev(_dev) ((to_fsl_mc_device(_dev)->flags & \ + FSL_MC_IS_DPRC) ? (_dev) : ((_dev)->parent)) + +/* Macro to check if a device is a container device */ +#define is_cont_dev(_dev) (to_fsl_mc_device(_dev)->flags & FSL_MC_IS_DPRC) + +/* Get the IOMMU group for device on fsl-mc bus */ +struct iommu_group *fsl_mc_device_group(struct device *dev) +{ + struct device *cont_dev = fsl_mc_cont_dev(dev); + struct iommu_group *group; + + /* Container device is responsible for creating the iommu group */ + if (is_cont_dev(dev)) { + group = iommu_group_alloc(); + if (IS_ERR(group)) + return NULL; + } else { + get_device(cont_dev); + group = iommu_group_get(cont_dev); + put_device(cont_dev); + } + + return group; +} --- a/drivers/staging/fsl-mc/bus/fsl-mc-msi.c +++ b/drivers/staging/fsl-mc/bus/fsl-mc-msi.c @@ -1,7 +1,7 @@ /* * Freescale Management Complex (MC) bus driver MSI support * - * Copyright (C) 2015 Freescale Semiconductor, Inc. + * Copyright (C) 2015-2016 Freescale Semiconductor, Inc. * Author: German Rivera * * This file is licensed under the terms of the GNU General Public @@ -17,6 +17,7 @@ #include #include #include "../include/mc-bus.h" +#include "fsl-mc-private.h" /* * Generate a unique ID identifying the interrupt (only used within the MSI --- a/drivers/staging/fsl-mc/bus/fsl-mc-private.h +++ b/drivers/staging/fsl-mc/bus/fsl-mc-private.h @@ -10,13 +10,15 @@ #ifndef _FSL_MC_PRIVATE_H_ #define _FSL_MC_PRIVATE_H_ +#include "../include/mc.h" +#include "../include/mc-bus.h" + int __must_check fsl_mc_device_add(struct dprc_obj_desc *obj_desc, struct fsl_mc_io *mc_io, struct device *parent_dev, + const char *driver_override, struct fsl_mc_device **new_mc_dev); -void fsl_mc_device_remove(struct fsl_mc_device *mc_dev); - int __init dprc_driver_init(void); void dprc_driver_exit(void); --- a/drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c +++ b/drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c @@ -1,7 +1,7 @@ /* * Freescale Management Complex (MC) bus driver MSI support * - * Copyright (C) 2015 Freescale Semiconductor, Inc. + * Copyright (C) 2015-2016 Freescale Semiconductor, Inc. * Author: German Rivera * * This file is licensed under the terms of the GNU General Public @@ -17,9 +17,10 @@ #include #include #include "../include/mc-bus.h" +#include "fsl-mc-private.h" static struct irq_chip its_msi_irq_chip = { - .name = "fsl-mc-bus-msi", + .name = "ITS-fMSI", .irq_mask = irq_chip_mask_parent, .irq_unmask = irq_chip_unmask_parent, .irq_eoi = irq_chip_eoi_parent, @@ -51,7 +52,7 @@ static int its_fsl_mc_msi_prepare(struct return msi_info->ops->msi_prepare(msi_domain->parent, dev, nvec, info); } -static struct msi_domain_ops its_fsl_mc_msi_ops = { +static struct msi_domain_ops its_fsl_mc_msi_ops __ro_after_init = { .msi_prepare = its_fsl_mc_msi_prepare, }; @@ -94,8 +95,8 @@ int __init its_fsl_mc_msi_init(void) continue; } - WARN_ON(mc_msi_domain-> - host_data != &its_fsl_mc_msi_domain_info); + WARN_ON(mc_msi_domain->host_data != + &its_fsl_mc_msi_domain_info); pr_info("fsl-mc MSI: %s domain created\n", np->full_name); } --- a/drivers/staging/fsl-mc/bus/mc-io.c +++ b/drivers/staging/fsl-mc/bus/mc-io.c @@ -1,4 +1,5 @@ -/* Copyright 2013-2016 Freescale Semiconductor Inc. +/* + * Copyright 2013-2016 Freescale Semiconductor Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: @@ -11,7 +12,6 @@ * names of any contributors may be used to endorse or promote products * derived from this software without specific prior written permission. * - * * ALTERNATIVELY, this software may be distributed under the terms of the * GNU General Public License ("GPL") as published by the Free Software * Foundation, either version 2 of that License or (at your option) any --- /dev/null +++ b/drivers/staging/fsl-mc/bus/mc-ioctl.h @@ -0,0 +1,22 @@ +/* + * Freescale Management Complex (MC) ioclt interface + * + * Copyright (C) 2014 Freescale Semiconductor, Inc. + * Author: Lijun Pan + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ +#ifndef _FSL_MC_IOCTL_H_ +#define _FSL_MC_IOCTL_H_ + +#include +#include "../include/mc-sys.h" + +#define RESTOOL_IOCTL_TYPE 'R' + +#define RESTOOL_SEND_MC_COMMAND \ + _IOWR(RESTOOL_IOCTL_TYPE, 0xE0, struct mc_command) + +#endif /* _FSL_MC_IOCTL_H_ */ --- /dev/null +++ b/drivers/staging/fsl-mc/bus/mc-restool.c @@ -0,0 +1,405 @@ +/* + * Freescale Management Complex (MC) restool driver + * + * Copyright (C) 2014 Freescale Semiconductor, Inc. + * Author: Lijun Pan + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include "../include/mc.h" +#include +#include +#include +#include +#include +#include +#include +#include +#include "mc-ioctl.h" +#include "../include/mc-sys.h" +#include "../include/mc-bus.h" +#include "../include/mc-cmd.h" +#include "../include/dpmng.h" + +/** + * Maximum number of DPRCs that can be opened at the same time + */ +#define MAX_DPRC_HANDLES 64 + +/** + * restool_misc - information associated with the newly added miscdevice + * @misc: newly created miscdevice associated with root dprc + * @miscdevt: device id of this miscdevice + * @list: a linked list node representing this miscdevcie + * @static_mc_io: pointer to the static MC I/O object used by the restool + * @dynamic_instance_count: number of dynamically created instances + * @static_instance_in_use: static instance is in use or not + * @mutex: mutex lock to serialze the open/release operations + * @dev: root dprc associated with this miscdevice + */ +struct restool_misc { + struct miscdevice misc; + dev_t miscdevt; + struct list_head list; + struct fsl_mc_io *static_mc_io; + u32 dynamic_instance_count; + bool static_instance_in_use; + struct mutex mutex; /* serialze the open/release operations */ + struct device *dev; +}; + +/** + * struct fsl_mc - Private data of a "fsl,qoriq-mc" platform device + * @root_mc_bus_dev: fsl-mc device representing the root DPRC + * @num_translation_ranges: number of entries in addr_translation_ranges + * @translation_ranges: array of bus to system address translation ranges + */ +struct fsl_mc { + struct fsl_mc_device *root_mc_bus_dev; + u8 num_translation_ranges; + struct fsl_mc_addr_translation_range *translation_ranges; +}; + +/* + * initialize a global list to link all + * the miscdevice nodes (struct restool_misc) + */ +static LIST_HEAD(misc_list); +static DEFINE_MUTEX(misc_list_mutex); + +static int fsl_mc_restool_dev_open(struct inode *inode, struct file *filep) +{ + struct fsl_mc_device *root_mc_dev; + int error; + struct fsl_mc_io *dynamic_mc_io = NULL; + struct restool_misc *restool_misc = NULL; + struct restool_misc *restool_misc_cursor; + + mutex_lock(&misc_list_mutex); + + list_for_each_entry(restool_misc_cursor, &misc_list, list) { + if (restool_misc_cursor->miscdevt == inode->i_rdev) { + restool_misc = restool_misc_cursor; + break; + } + } + + mutex_unlock(&misc_list_mutex); + + if (!restool_misc) + return -EINVAL; + + if (WARN_ON(!restool_misc->dev)) + return -EINVAL; + + mutex_lock(&restool_misc->mutex); + + if (!restool_misc->static_instance_in_use) { + restool_misc->static_instance_in_use = true; + filep->private_data = restool_misc->static_mc_io; + } else { + dynamic_mc_io = kzalloc(sizeof(*dynamic_mc_io), GFP_KERNEL); + if (!dynamic_mc_io) { + error = -ENOMEM; + goto err_unlock; + } + + root_mc_dev = to_fsl_mc_device(restool_misc->dev); + error = fsl_mc_portal_allocate(root_mc_dev, 0, &dynamic_mc_io); + if (error < 0) { + pr_err("Not able to allocate MC portal\n"); + goto free_dynamic_mc_io; + } + ++restool_misc->dynamic_instance_count; + filep->private_data = dynamic_mc_io; + } + + mutex_unlock(&restool_misc->mutex); + + return 0; + +free_dynamic_mc_io: + kfree(dynamic_mc_io); +err_unlock: + mutex_unlock(&restool_misc->mutex); + + return error; +} + +static int fsl_mc_restool_dev_release(struct inode *inode, struct file *filep) +{ + struct fsl_mc_io *local_mc_io = filep->private_data; + struct restool_misc *restool_misc = NULL; + struct restool_misc *restool_misc_cursor; + + if (WARN_ON(!filep->private_data)) + return -EINVAL; + + mutex_lock(&misc_list_mutex); + + list_for_each_entry(restool_misc_cursor, &misc_list, list) { + if (restool_misc_cursor->miscdevt == inode->i_rdev) { + restool_misc = restool_misc_cursor; + break; + } + } + + mutex_unlock(&misc_list_mutex); + + if (!restool_misc) + return -EINVAL; + + mutex_lock(&restool_misc->mutex); + + if (WARN_ON(restool_misc->dynamic_instance_count == 0 && + !restool_misc->static_instance_in_use)) { + mutex_unlock(&restool_misc->mutex); + return -EINVAL; + } + + /* Globally clean up opened/untracked handles */ + fsl_mc_portal_reset(local_mc_io); + + /* + * must check + * whether local_mc_io is dynamic or static instance + * Otherwise it will free up the reserved portal by accident + * or even not free up the dynamic allocated portal + * if 2 or more instances running concurrently + */ + if (local_mc_io == restool_misc->static_mc_io) { + restool_misc->static_instance_in_use = false; + } else { + fsl_mc_portal_free(local_mc_io); + kfree(filep->private_data); + --restool_misc->dynamic_instance_count; + } + + filep->private_data = NULL; + mutex_unlock(&restool_misc->mutex); + + return 0; +} + +static int restool_send_mc_command(unsigned long arg, + struct fsl_mc_io *local_mc_io) +{ + int error; + struct mc_command mc_cmd; + + if (copy_from_user(&mc_cmd, (void __user *)arg, sizeof(mc_cmd))) + return -EFAULT; + + /* + * Send MC command to the MC: + */ + error = mc_send_command(local_mc_io, &mc_cmd); + if (error < 0) + return error; + + if (copy_to_user((void __user *)arg, &mc_cmd, sizeof(mc_cmd))) + return -EFAULT; + + return 0; +} + +static long +fsl_mc_restool_dev_ioctl(struct file *file, unsigned int cmd, unsigned long arg) +{ + int error; + + switch (cmd) { + case RESTOOL_SEND_MC_COMMAND: + error = restool_send_mc_command(arg, file->private_data); + break; + default: + pr_err("%s: unexpected ioctl call number\n", __func__); + error = -EINVAL; + } + + return error; +} + +static const struct file_operations fsl_mc_restool_dev_fops = { + .owner = THIS_MODULE, + .open = fsl_mc_restool_dev_open, + .release = fsl_mc_restool_dev_release, + .unlocked_ioctl = fsl_mc_restool_dev_ioctl, +}; + +static int restool_add_device_file(struct device *dev) +{ + u32 name1 = 0; + char name2[20] = {0}; + int error; + struct fsl_mc_device *root_mc_dev; + struct restool_misc *restool_misc; + + if (dev->bus == &platform_bus_type && dev->driver_data) { + if (sscanf(dev_name(dev), "%x.%s", &name1, name2) != 2) + return -EINVAL; + + if (strcmp(name2, "fsl-mc") == 0) + pr_debug("platform's root dprc name is: %s\n", + dev_name(&(((struct fsl_mc *) + (dev->driver_data))->root_mc_bus_dev->dev))); + } + + if (!fsl_mc_is_root_dprc(dev)) + return 0; + + restool_misc = kzalloc(sizeof(*restool_misc), GFP_KERNEL); + if (!restool_misc) + return -ENOMEM; + + restool_misc->dev = dev; + root_mc_dev = to_fsl_mc_device(dev); + error = fsl_mc_portal_allocate(root_mc_dev, 0, + &restool_misc->static_mc_io); + if (error < 0) { + pr_err("Not able to allocate MC portal\n"); + goto free_restool_misc; + } + + restool_misc->misc.minor = MISC_DYNAMIC_MINOR; + restool_misc->misc.name = dev_name(dev); + restool_misc->misc.fops = &fsl_mc_restool_dev_fops; + + error = misc_register(&restool_misc->misc); + if (error < 0) { + pr_err("misc_register() failed: %d\n", error); + goto free_portal; + } + + restool_misc->miscdevt = restool_misc->misc.this_device->devt; + mutex_init(&restool_misc->mutex); + mutex_lock(&misc_list_mutex); + list_add(&restool_misc->list, &misc_list); + mutex_unlock(&misc_list_mutex); + + pr_info("/dev/%s driver registered\n", dev_name(dev)); + + return 0; + +free_portal: + fsl_mc_portal_free(restool_misc->static_mc_io); +free_restool_misc: + kfree(restool_misc); + + return error; +} + +static int restool_bus_notifier(struct notifier_block *nb, + unsigned long action, void *data) +{ + int error; + struct device *dev = data; + + switch (action) { + case BUS_NOTIFY_ADD_DEVICE: + error = restool_add_device_file(dev); + if (error) + return error; + break; + case BUS_NOTIFY_DEL_DEVICE: + case BUS_NOTIFY_REMOVED_DEVICE: + case BUS_NOTIFY_BIND_DRIVER: + case BUS_NOTIFY_BOUND_DRIVER: + case BUS_NOTIFY_UNBIND_DRIVER: + case BUS_NOTIFY_UNBOUND_DRIVER: + break; + default: + pr_err("%s: unrecognized device action from %s\n", __func__, + dev_name(dev)); + return -EINVAL; + } + + return 0; +} + +static int add_to_restool(struct device *dev, void *data) +{ + return restool_add_device_file(dev); +} + +static int __init fsl_mc_restool_driver_init(void) +{ + int error; + struct notifier_block *nb; + + nb = kzalloc(sizeof(*nb), GFP_KERNEL); + if (!nb) + return -ENOMEM; + + nb->notifier_call = restool_bus_notifier; + error = bus_register_notifier(&fsl_mc_bus_type, nb); + if (error) + goto free_nb; + + /* + * This driver runs after fsl-mc bus driver runs. + * Hence, many of the root dprcs are already attached to fsl-mc bus + * In order to make sure we find all the root dprcs, + * we need to scan the fsl_mc_bus_type. + */ + error = bus_for_each_dev(&fsl_mc_bus_type, NULL, NULL, add_to_restool); + if (error) { + bus_unregister_notifier(&fsl_mc_bus_type, nb); + kfree(nb); + pr_err("restool driver registration failure\n"); + return error; + } + + return 0; + +free_nb: + kfree(nb); + return error; +} + +module_init(fsl_mc_restool_driver_init); + +static void __exit fsl_mc_restool_driver_exit(void) +{ + struct restool_misc *restool_misc; + struct restool_misc *restool_misc_tmp; + char name1[20] = {0}; + u32 name2 = 0; + + list_for_each_entry_safe(restool_misc, restool_misc_tmp, + &misc_list, list) { + if (sscanf(restool_misc->misc.name, "%4s.%u", name1, &name2) + != 2) + continue; + + pr_debug("name1=%s,name2=%u\n", name1, name2); + pr_debug("misc-device: %s\n", restool_misc->misc.name); + if (strcmp(name1, "dprc") != 0) + continue; + + if (WARN_ON(!restool_misc->static_mc_io)) + return; + + if (WARN_ON(restool_misc->dynamic_instance_count != 0)) + return; + + if (WARN_ON(restool_misc->static_instance_in_use)) + return; + + misc_deregister(&restool_misc->misc); + pr_info("/dev/%s driver unregistered\n", + restool_misc->misc.name); + fsl_mc_portal_free(restool_misc->static_mc_io); + list_del(&restool_misc->list); + kfree(restool_misc); + } +} + +module_exit(fsl_mc_restool_driver_exit); + +MODULE_AUTHOR("Freescale Semiconductor Inc."); +MODULE_DESCRIPTION("Freescale's MC restool driver"); +MODULE_LICENSE("GPL"); --- a/drivers/staging/fsl-mc/bus/mc-sys.c +++ b/drivers/staging/fsl-mc/bus/mc-sys.c @@ -1,4 +1,5 @@ -/* Copyright 2013-2014 Freescale Semiconductor Inc. +/* + * Copyright 2013-2016 Freescale Semiconductor Inc. * * I/O services to send MC commands to the MC hardware * @@ -13,7 +14,6 @@ * names of any contributors may be used to endorse or promote products * derived from this software without specific prior written permission. * - * * ALTERNATIVELY, this software may be distributed under the terms of the * GNU General Public License ("GPL") as published by the Free Software * Foundation, either version 2 of that License or (at your option) any @@ -46,7 +46,7 @@ /** * Timeout in milliseconds to wait for the completion of an MC command */ -#define MC_CMD_COMPLETION_TIMEOUT_MS 500 +#define MC_CMD_COMPLETION_TIMEOUT_MS 15000 /* * usleep_range() min and max values used to throttle down polling @@ -67,7 +67,7 @@ static u16 mc_cmd_hdr_read_cmdid(struct struct mc_cmd_header *hdr = (struct mc_cmd_header *)&cmd->header; u16 cmd_id = le16_to_cpu(hdr->cmd_id); - return (cmd_id & MC_CMD_HDR_CMDID_MASK) >> MC_CMD_HDR_CMDID_SHIFT; + return cmd_id; } static int mc_status_to_error(enum mc_cmd_status status) @@ -200,7 +200,7 @@ static int mc_polling_wait_preemptible(s if (time_after_eq(jiffies, jiffies_until_timeout)) { dev_dbg(mc_io->dev, - "MC command timed out (portal: %#llx, obj handle: %#x, command: %#x)\n", + "MC command timed out (portal: %#llx, dprc handle: %#x, command: %#x)\n", mc_io->portal_phys_addr, (unsigned int)mc_cmd_hdr_read_token(cmd), (unsigned int)mc_cmd_hdr_read_cmdid(cmd)); @@ -240,7 +240,7 @@ static int mc_polling_wait_atomic(struct timeout_usecs -= MC_CMD_COMPLETION_POLLING_MAX_SLEEP_USECS; if (timeout_usecs == 0) { dev_dbg(mc_io->dev, - "MC command timed out (portal: %#llx, obj handle: %#x, command: %#x)\n", + "MC command timed out (portal: %#llx, dprc handle: %#x, command: %#x)\n", mc_io->portal_phys_addr, (unsigned int)mc_cmd_hdr_read_token(cmd), (unsigned int)mc_cmd_hdr_read_cmdid(cmd)); @@ -294,7 +294,7 @@ int mc_send_command(struct fsl_mc_io *mc if (status != MC_CMD_STATUS_OK) { dev_dbg(mc_io->dev, - "MC command failed: portal: %#llx, obj handle: %#x, command: %#x, status: %s (%#x)\n", + "MC command failed: portal: %#llx, dprc handle: %#x, command: %#x, status: %s (%#x)\n", mc_io->portal_phys_addr, (unsigned int)mc_cmd_hdr_read_token(cmd), (unsigned int)mc_cmd_hdr_read_cmdid(cmd), --- /dev/null +++ b/drivers/staging/fsl-mc/include/dpaa2-fd.h @@ -0,0 +1,706 @@ +/* + * Copyright 2014-2016 Freescale Semiconductor Inc. + * Copyright 2016 NXP + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Freescale Semiconductor nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef __FSL_DPAA2_FD_H +#define __FSL_DPAA2_FD_H + +#include + +/** + * DOC: DPAA2 FD - Frame Descriptor APIs for DPAA2 + * + * Frame Descriptors (FDs) are used to describe frame data in the DPAA2. + * Frames can be enqueued and dequeued to Frame Queues (FQs) which are consumed + * by the various DPAA accelerators (WRIOP, SEC, PME, DCE) + * + * There are three types of frames: single, scatter gather, and frame lists. + * + * The set of APIs in this file must be used to create, manipulate and + * query Frame Descriptors. + */ + +/** + * struct dpaa2_fd - Struct describing FDs + * @words: for easier/faster copying the whole FD structure + * @addr: address in the FD + * @len: length in the FD + * @bpid: buffer pool ID + * @format_offset: format, offset, and short-length fields + * @frc: frame context + * @ctrl: control bits...including dd, sc, va, err, etc + * @flc: flow context address + * + * This structure represents the basic Frame Descriptor used in the system. + */ +struct dpaa2_fd { + union { + u32 words[8]; + struct dpaa2_fd_simple { + __le64 addr; + __le32 len; + __le16 bpid; + __le16 format_offset; + __le32 frc; + __le32 ctrl; + __le64 flc; + } simple; + }; +}; + +#define FD_SHORT_LEN_FLAG_MASK 0x1 +#define FD_SHORT_LEN_FLAG_SHIFT 14 +#define FD_SHORT_LEN_MASK 0x3FFFF +#define FD_OFFSET_MASK 0x0FFF +#define FD_FORMAT_MASK 0x3 +#define FD_FORMAT_SHIFT 12 +#define FD_BPID_MASK 0x3FFF +#define SG_SHORT_LEN_FLAG_MASK 0x1 +#define SG_SHORT_LEN_FLAG_SHIFT 14 +#define SG_SHORT_LEN_MASK 0x1FFFF +#define SG_OFFSET_MASK 0x0FFF +#define SG_FORMAT_MASK 0x3 +#define SG_FORMAT_SHIFT 12 +#define SG_BPID_MASK 0x3FFF +#define SG_FINAL_FLAG_MASK 0x1 +#define SG_FINAL_FLAG_SHIFT 15 +#define FL_SHORT_LEN_FLAG_MASK 0x1 +#define FL_SHORT_LEN_FLAG_SHIFT 14 +#define FL_SHORT_LEN_MASK 0x3FFFF +#define FL_OFFSET_MASK 0x0FFF +#define FL_FORMAT_MASK 0x3 +#define FL_FORMAT_SHIFT 12 +#define FL_BPID_MASK 0x3FFF +#define FL_FINAL_FLAG_MASK 0x1 +#define FL_FINAL_FLAG_SHIFT 15 + +/* Error bits in FD CTRL */ +#define FD_CTRL_ERR_MASK 0x000000FF +#define FD_CTRL_UFD 0x00000004 +#define FD_CTRL_SBE 0x00000008 +#define FD_CTRL_FLC 0x00000010 +#define FD_CTRL_FSE 0x00000020 +#define FD_CTRL_FAERR 0x00000040 + +/* Annotation bits in FD CTRL */ +#define FD_CTRL_PTA 0x00800000 +#define FD_CTRL_PTV1 0x00400000 + +enum dpaa2_fd_format { + dpaa2_fd_single = 0, + dpaa2_fd_list, + dpaa2_fd_sg +}; + +/** + * dpaa2_fd_get_addr() - get the addr field of frame descriptor + * @fd: the given frame descriptor + * + * Return the address in the frame descriptor. + */ +static inline dma_addr_t dpaa2_fd_get_addr(const struct dpaa2_fd *fd) +{ + return (dma_addr_t)le64_to_cpu(fd->simple.addr); +} + +/** + * dpaa2_fd_set_addr() - Set the addr field of frame descriptor + * @fd: the given frame descriptor + * @addr: the address needs to be set in frame descriptor + */ +static inline void dpaa2_fd_set_addr(struct dpaa2_fd *fd, dma_addr_t addr) +{ + fd->simple.addr = cpu_to_le64(addr); +} + +/** + * dpaa2_fd_get_frc() - Get the frame context in the frame descriptor + * @fd: the given frame descriptor + * + * Return the frame context field in the frame descriptor. + */ +static inline u32 dpaa2_fd_get_frc(const struct dpaa2_fd *fd) +{ + return le32_to_cpu(fd->simple.frc); +} + +/** + * dpaa2_fd_set_frc() - Set the frame context in the frame descriptor + * @fd: the given frame descriptor + * @frc: the frame context needs to be set in frame descriptor + */ +static inline void dpaa2_fd_set_frc(struct dpaa2_fd *fd, u32 frc) +{ + fd->simple.frc = cpu_to_le32(frc); +} + +/** + * dpaa2_fd_get_ctrl() - Get the control bits in the frame descriptor + * @fd: the given frame descriptor + * + * Return the control bits field in the frame descriptor. + */ +static inline u32 dpaa2_fd_get_ctrl(const struct dpaa2_fd *fd) +{ + return le32_to_cpu(fd->simple.ctrl); +} + +/** + * dpaa2_fd_set_ctrl() - Set the control bits in the frame descriptor + * @fd: the given frame descriptor + * @ctrl: the control bits to be set in the frame descriptor + */ +static inline void dpaa2_fd_set_ctrl(struct dpaa2_fd *fd, u32 ctrl) +{ + fd->simple.ctrl = cpu_to_le32(ctrl); +} + +/** + * dpaa2_fd_get_flc() - Get the flow context in the frame descriptor + * @fd: the given frame descriptor + * + * Return the flow context in the frame descriptor. + */ +static inline dma_addr_t dpaa2_fd_get_flc(const struct dpaa2_fd *fd) +{ + return (dma_addr_t)le64_to_cpu(fd->simple.flc); +} + +/** + * dpaa2_fd_set_flc() - Set the flow context field of frame descriptor + * @fd: the given frame descriptor + * @flc_addr: the flow context needs to be set in frame descriptor + */ +static inline void dpaa2_fd_set_flc(struct dpaa2_fd *fd, dma_addr_t flc_addr) +{ + fd->simple.flc = cpu_to_le64(flc_addr); +} + +static inline bool dpaa2_fd_short_len(const struct dpaa2_fd *fd) +{ + return !!((le16_to_cpu(fd->simple.format_offset) >> + FD_SHORT_LEN_FLAG_SHIFT) & FD_SHORT_LEN_FLAG_MASK); +} + +/** + * dpaa2_fd_get_len() - Get the length in the frame descriptor + * @fd: the given frame descriptor + * + * Return the length field in the frame descriptor. + */ +static inline u32 dpaa2_fd_get_len(const struct dpaa2_fd *fd) +{ + if (dpaa2_fd_short_len(fd)) + return le32_to_cpu(fd->simple.len) & FD_SHORT_LEN_MASK; + + return le32_to_cpu(fd->simple.len); +} + +/** + * dpaa2_fd_set_len() - Set the length field of frame descriptor + * @fd: the given frame descriptor + * @len: the length needs to be set in frame descriptor + */ +static inline void dpaa2_fd_set_len(struct dpaa2_fd *fd, u32 len) +{ + fd->simple.len = cpu_to_le32(len); +} + +/** + * dpaa2_fd_get_offset() - Get the offset field in the frame descriptor + * @fd: the given frame descriptor + * + * Return the offset. + */ +static inline uint16_t dpaa2_fd_get_offset(const struct dpaa2_fd *fd) +{ + return le16_to_cpu(fd->simple.format_offset) & FD_OFFSET_MASK; +} + +/** + * dpaa2_fd_set_offset() - Set the offset field of frame descriptor + * @fd: the given frame descriptor + * @offset: the offset needs to be set in frame descriptor + */ +static inline void dpaa2_fd_set_offset(struct dpaa2_fd *fd, uint16_t offset) +{ + fd->simple.format_offset &= cpu_to_le16(~FD_OFFSET_MASK); + fd->simple.format_offset |= cpu_to_le16(offset); +} + +/** + * dpaa2_fd_get_format() - Get the format field in the frame descriptor + * @fd: the given frame descriptor + * + * Return the format. + */ +static inline enum dpaa2_fd_format dpaa2_fd_get_format( + const struct dpaa2_fd *fd) +{ + return (enum dpaa2_fd_format)((le16_to_cpu(fd->simple.format_offset) + >> FD_FORMAT_SHIFT) & FD_FORMAT_MASK); +} + +/** + * dpaa2_fd_set_format() - Set the format field of frame descriptor + * @fd: the given frame descriptor + * @format: the format needs to be set in frame descriptor + */ +static inline void dpaa2_fd_set_format(struct dpaa2_fd *fd, + enum dpaa2_fd_format format) +{ + fd->simple.format_offset &= + cpu_to_le16(~(FD_FORMAT_MASK << FD_FORMAT_SHIFT)); + fd->simple.format_offset |= cpu_to_le16(format << FD_FORMAT_SHIFT); +} + +/** + * dpaa2_fd_get_bpid() - Get the bpid field in the frame descriptor + * @fd: the given frame descriptor + * + * Return the buffer pool id. + */ +static inline uint16_t dpaa2_fd_get_bpid(const struct dpaa2_fd *fd) +{ + return le16_to_cpu(fd->simple.bpid) & FD_BPID_MASK; +} + +/** + * dpaa2_fd_set_bpid() - Set the bpid field of frame descriptor + * @fd: the given frame descriptor + * @bpid: buffer pool id to be set + */ +static inline void dpaa2_fd_set_bpid(struct dpaa2_fd *fd, uint16_t bpid) +{ + fd->simple.bpid &= cpu_to_le16(~(FD_BPID_MASK)); + fd->simple.bpid |= cpu_to_le16(bpid); +} + +/** + * struct dpaa2_sg_entry - the scatter-gathering structure + * @addr: address of the sg entry + * @len: length in this sg entry + * @bpid: buffer pool id + * @format_offset: format and offset fields + */ +struct dpaa2_sg_entry { + __le64 addr; + __le32 len; + __le16 bpid; + __le16 format_offset; +}; + +enum dpaa2_sg_format { + dpaa2_sg_single = 0, + dpaa2_sg_frame_data, + dpaa2_sg_sgt_ext +}; + +/* Accessors for SG entry fields */ + +/** + * dpaa2_sg_get_addr() - Get the address from SG entry + * @sg: the given scatter-gathering object + * + * Return the address. + */ +static inline dma_addr_t dpaa2_sg_get_addr(const struct dpaa2_sg_entry *sg) +{ + return le64_to_cpu((dma_addr_t)sg->addr); +} + +/** + * dpaa2_sg_set_addr() - Set the address in SG entry + * @sg: the given scatter-gathering object + * @addr: the address to be set + */ +static inline void dpaa2_sg_set_addr(struct dpaa2_sg_entry *sg, dma_addr_t addr) +{ + sg->addr = cpu_to_le64(addr); +} + +static inline bool dpaa2_sg_short_len(const struct dpaa2_sg_entry *sg) +{ + return !!((le16_to_cpu(sg->format_offset) >> SG_SHORT_LEN_FLAG_SHIFT) + & SG_SHORT_LEN_FLAG_MASK); +} + +/** + * dpaa2_sg_get_len() - Get the length in SG entry + * @sg: the given scatter-gathering object + * + * Return the length. + */ +static inline u32 dpaa2_sg_get_len(const struct dpaa2_sg_entry *sg) +{ + if (dpaa2_sg_short_len(sg)) + return le32_to_cpu(sg->len) & SG_SHORT_LEN_MASK; + + return le32_to_cpu(sg->len); +} + +/** + * dpaa2_sg_set_len() - Set the length in SG entry + * @sg: the given scatter-gathering object + * @len: the length to be set + */ +static inline void dpaa2_sg_set_len(struct dpaa2_sg_entry *sg, u32 len) +{ + sg->len = cpu_to_le32(len); +} + +/** + * dpaa2_sg_get_offset() - Get the offset in SG entry + * @sg: the given scatter-gathering object + * + * Return the offset. + */ +static inline u16 dpaa2_sg_get_offset(const struct dpaa2_sg_entry *sg) +{ + return le16_to_cpu(sg->format_offset) & SG_OFFSET_MASK; +} + +/** + * dpaa2_sg_set_offset() - Set the offset in SG entry + * @sg: the given scatter-gathering object + * @offset: the offset to be set + */ +static inline void dpaa2_sg_set_offset(struct dpaa2_sg_entry *sg, + u16 offset) +{ + sg->format_offset &= cpu_to_le16(~SG_OFFSET_MASK); + sg->format_offset |= cpu_to_le16(offset); +} + +/** + * dpaa2_sg_get_format() - Get the SG format in SG entry + * @sg: the given scatter-gathering object + * + * Return the format. + */ +static inline enum dpaa2_sg_format + dpaa2_sg_get_format(const struct dpaa2_sg_entry *sg) +{ + return (enum dpaa2_sg_format)((le16_to_cpu(sg->format_offset) + >> SG_FORMAT_SHIFT) & SG_FORMAT_MASK); +} + +/** + * dpaa2_sg_set_format() - Set the SG format in SG entry + * @sg: the given scatter-gathering object + * @format: the format to be set + */ +static inline void dpaa2_sg_set_format(struct dpaa2_sg_entry *sg, + enum dpaa2_sg_format format) +{ + sg->format_offset &= cpu_to_le16(~(SG_FORMAT_MASK << SG_FORMAT_SHIFT)); + sg->format_offset |= cpu_to_le16(format << SG_FORMAT_SHIFT); +} + +/** + * dpaa2_sg_get_bpid() - Get the buffer pool id in SG entry + * @sg: the given scatter-gathering object + * + * Return the bpid. + */ +static inline u16 dpaa2_sg_get_bpid(const struct dpaa2_sg_entry *sg) +{ + return le16_to_cpu(sg->bpid) & SG_BPID_MASK; +} + +/** + * dpaa2_sg_set_bpid() - Set the buffer pool id in SG entry + * @sg: the given scatter-gathering object + * @bpid: the bpid to be set + */ +static inline void dpaa2_sg_set_bpid(struct dpaa2_sg_entry *sg, u16 bpid) +{ + sg->bpid &= cpu_to_le16(~(SG_BPID_MASK)); + sg->bpid |= cpu_to_le16(bpid); +} + +/** + * dpaa2_sg_is_final() - Check final bit in SG entry + * @sg: the given scatter-gathering object + * + * Return bool. + */ +static inline bool dpaa2_sg_is_final(const struct dpaa2_sg_entry *sg) +{ + return !!(le16_to_cpu(sg->format_offset) >> SG_FINAL_FLAG_SHIFT); +} + +/** + * dpaa2_sg_set_final() - Set the final bit in SG entry + * @sg: the given scatter-gathering object + * @final: the final boolean to be set + */ +static inline void dpaa2_sg_set_final(struct dpaa2_sg_entry *sg, bool final) +{ + sg->format_offset &= cpu_to_le16(~(SG_FINAL_FLAG_MASK + << SG_FINAL_FLAG_SHIFT)); + sg->format_offset |= cpu_to_le16(final << SG_FINAL_FLAG_SHIFT); +} + +/** + * struct dpaa2_fl_entry - structure for frame list entry. + * @addr: address in the FLE + * @len: length in the FLE + * @bpid: buffer pool ID + * @format_offset: format, offset, and short-length fields + * @frc: frame context + * @ctrl: control bits...including pta, pvt1, pvt2, err, etc + * @flc: flow context address + */ +struct dpaa2_fl_entry { + __le64 addr; + __le32 len; + __le16 bpid; + __le16 format_offset; + __le32 frc; + __le32 ctrl; + __le64 flc; +}; + +enum dpaa2_fl_format { + dpaa2_fl_single = 0, + dpaa2_fl_res, + dpaa2_fl_sg +}; + +/** + * dpaa2_fl_get_addr() - get the addr field of FLE + * @fle: the given frame list entry + * + * Return the address in the frame list entry. + */ +static inline dma_addr_t dpaa2_fl_get_addr(const struct dpaa2_fl_entry *fle) +{ + return (dma_addr_t)le64_to_cpu(fle->addr); +} + +/** + * dpaa2_fl_set_addr() - Set the addr field of FLE + * @fle: the given frame list entry + * @addr: the address needs to be set in frame list entry + */ +static inline void dpaa2_fl_set_addr(struct dpaa2_fl_entry *fle, + dma_addr_t addr) +{ + fle->addr = cpu_to_le64(addr); +} + +/** + * dpaa2_fl_get_frc() - Get the frame context in the FLE + * @fle: the given frame list entry + * + * Return the frame context field in the frame lsit entry. + */ +static inline u32 dpaa2_fl_get_frc(const struct dpaa2_fl_entry *fle) +{ + return le32_to_cpu(fle->frc); +} + +/** + * dpaa2_fl_set_frc() - Set the frame context in the FLE + * @fle: the given frame list entry + * @frc: the frame context needs to be set in frame list entry + */ +static inline void dpaa2_fl_set_frc(struct dpaa2_fl_entry *fle, u32 frc) +{ + fle->frc = cpu_to_le32(frc); +} + +/** + * dpaa2_fl_get_ctrl() - Get the control bits in the FLE + * @fle: the given frame list entry + * + * Return the control bits field in the frame list entry. + */ +static inline u32 dpaa2_fl_get_ctrl(const struct dpaa2_fl_entry *fle) +{ + return le32_to_cpu(fle->ctrl); +} + +/** + * dpaa2_fl_set_ctrl() - Set the control bits in the FLE + * @fle: the given frame list entry + * @ctrl: the control bits to be set in the frame list entry + */ +static inline void dpaa2_fl_set_ctrl(struct dpaa2_fl_entry *fle, u32 ctrl) +{ + fle->ctrl = cpu_to_le32(ctrl); +} + +/** + * dpaa2_fl_get_flc() - Get the flow context in the FLE + * @fle: the given frame list entry + * + * Return the flow context in the frame list entry. + */ +static inline dma_addr_t dpaa2_fl_get_flc(const struct dpaa2_fl_entry *fle) +{ + return (dma_addr_t)le64_to_cpu(fle->flc); +} + +/** + * dpaa2_fl_set_flc() - Set the flow context field of FLE + * @fle: the given frame list entry + * @flc_addr: the flow context needs to be set in frame list entry + */ +static inline void dpaa2_fl_set_flc(struct dpaa2_fl_entry *fle, + dma_addr_t flc_addr) +{ + fle->flc = cpu_to_le64(flc_addr); +} + +static inline bool dpaa2_fl_short_len(const struct dpaa2_fl_entry *fle) +{ + return !!((le16_to_cpu(fle->format_offset) >> + FL_SHORT_LEN_FLAG_SHIFT) & FL_SHORT_LEN_FLAG_MASK); +} + +/** + * dpaa2_fl_get_len() - Get the length in the FLE + * @fle: the given frame list entry + * + * Return the length field in the frame list entry. + */ +static inline u32 dpaa2_fl_get_len(const struct dpaa2_fl_entry *fle) +{ + if (dpaa2_fl_short_len(fle)) + return le32_to_cpu(fle->len) & FL_SHORT_LEN_MASK; + + return le32_to_cpu(fle->len); +} + +/** + * dpaa2_fl_set_len() - Set the length field of FLE + * @fle: the given frame list entry + * @len: the length needs to be set in frame list entry + */ +static inline void dpaa2_fl_set_len(struct dpaa2_fl_entry *fle, u32 len) +{ + fle->len = cpu_to_le32(len); +} + +/** + * dpaa2_fl_get_offset() - Get the offset field in the frame list entry + * @fle: the given frame list entry + * + * Return the offset. + */ +static inline u16 dpaa2_fl_get_offset(const struct dpaa2_fl_entry *fle) +{ + return le16_to_cpu(fle->format_offset) & FL_OFFSET_MASK; +} + +/** + * dpaa2_fl_set_offset() - Set the offset field of FLE + * @fle: the given frame list entry + * @offset: the offset needs to be set in frame list entry + */ +static inline void dpaa2_fl_set_offset(struct dpaa2_fl_entry *fle, u16 offset) +{ + fle->format_offset &= cpu_to_le16(~FL_OFFSET_MASK); + fle->format_offset |= cpu_to_le16(offset); +} + +/** + * dpaa2_fl_get_format() - Get the format field in the FLE + * @fle: the given frame list entry + * + * Return the format. + */ +static inline enum dpaa2_fl_format dpaa2_fl_get_format( + const struct dpaa2_fl_entry *fle) +{ + return (enum dpaa2_fl_format)((le16_to_cpu(fle->format_offset) >> + FL_FORMAT_SHIFT) & FL_FORMAT_MASK); +} + +/** + * dpaa2_fl_set_format() - Set the format field of FLE + * @fle: the given frame list entry + * @format: the format needs to be set in frame list entry + */ +static inline void dpaa2_fl_set_format(struct dpaa2_fl_entry *fle, + enum dpaa2_fl_format format) +{ + fle->format_offset &= cpu_to_le16(~(FL_FORMAT_MASK << FL_FORMAT_SHIFT)); + fle->format_offset |= cpu_to_le16(format << FL_FORMAT_SHIFT); +} + +/** + * dpaa2_fl_get_bpid() - Get the bpid field in the FLE + * @fle: the given frame list entry + * + * Return the buffer pool id. + */ +static inline u16 dpaa2_fl_get_bpid(const struct dpaa2_fl_entry *fle) +{ + return le16_to_cpu(fle->bpid) & FL_BPID_MASK; +} + +/** + * dpaa2_fl_set_bpid() - Set the bpid field of FLE + * @fle: the given frame list entry + * @bpid: buffer pool id to be set + */ +static inline void dpaa2_fl_set_bpid(struct dpaa2_fl_entry *fle, u16 bpid) +{ + fle->bpid &= cpu_to_le16(~(FL_BPID_MASK)); + fle->bpid |= cpu_to_le16(bpid); +} + +/** + * dpaa2_fl_is_final() - Check final bit in FLE + * @fle: the given frame list entry + * + * Return bool. + */ +static inline bool dpaa2_fl_is_final(const struct dpaa2_fl_entry *fle) +{ + return !!(le16_to_cpu(fle->format_offset) >> FL_FINAL_FLAG_SHIFT); +} + +/** + * dpaa2_fl_set_final() - Set the final bit in FLE + * @fle: the given frame list entry + * @final: the final boolean to be set + */ +static inline void dpaa2_fl_set_final(struct dpaa2_fl_entry *fle, bool final) +{ + fle->format_offset &= cpu_to_le16(~(FL_FINAL_FLAG_MASK << + FL_FINAL_FLAG_SHIFT)); + fle->format_offset |= cpu_to_le16(final << FL_FINAL_FLAG_SHIFT); +} + +#endif /* __FSL_DPAA2_FD_H */ --- /dev/null +++ b/drivers/staging/fsl-mc/include/dpaa2-global.h @@ -0,0 +1,202 @@ +/* + * Copyright 2014-2016 Freescale Semiconductor Inc. + * Copyright 2016 NXP + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Freescale Semiconductor nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef __FSL_DPAA2_GLOBAL_H +#define __FSL_DPAA2_GLOBAL_H + +#include +#include +#include "dpaa2-fd.h" + +struct dpaa2_dq { + union { + struct common { + u8 verb; + u8 reserved[63]; + } common; + struct dq { + u8 verb; + u8 stat; + __le16 seqnum; + __le16 oprid; + u8 reserved; + u8 tok; + __le32 fqid; + u32 reserved2; + __le32 fq_byte_cnt; + __le32 fq_frm_cnt; + __le64 fqd_ctx; + u8 fd[32]; + } dq; + struct scn { + u8 verb; + u8 stat; + u8 state; + u8 reserved; + __le32 rid_tok; + __le64 ctx; + } scn; + }; +}; + +/* Parsing frame dequeue results */ +/* FQ empty */ +#define DPAA2_DQ_STAT_FQEMPTY 0x80 +/* FQ held active */ +#define DPAA2_DQ_STAT_HELDACTIVE 0x40 +/* FQ force eligible */ +#define DPAA2_DQ_STAT_FORCEELIGIBLE 0x20 +/* valid frame */ +#define DPAA2_DQ_STAT_VALIDFRAME 0x10 +/* FQ ODP enable */ +#define DPAA2_DQ_STAT_ODPVALID 0x04 +/* volatile dequeue */ +#define DPAA2_DQ_STAT_VOLATILE 0x02 +/* volatile dequeue command is expired */ +#define DPAA2_DQ_STAT_EXPIRED 0x01 + +#define DQ_FQID_MASK 0x00FFFFFF +#define DQ_FRAME_COUNT_MASK 0x00FFFFFF + +/** + * dpaa2_dq_flags() - Get the stat field of dequeue response + * @dq: the dequeue result. + */ +static inline u32 dpaa2_dq_flags(const struct dpaa2_dq *dq) +{ + return dq->dq.stat; +} + +/** + * dpaa2_dq_is_pull() - Check whether the dq response is from a pull + * command. + * @dq: the dequeue result + * + * Return 1 for volatile(pull) dequeue, 0 for static dequeue. + */ +static inline int dpaa2_dq_is_pull(const struct dpaa2_dq *dq) +{ + return (int)(dpaa2_dq_flags(dq) & DPAA2_DQ_STAT_VOLATILE); +} + +/** + * dpaa2_dq_is_pull_complete() - Check whether the pull command is completed. + * @dq: the dequeue result + * + * Return boolean. + */ +static inline bool dpaa2_dq_is_pull_complete(const struct dpaa2_dq *dq) +{ + return !!(dpaa2_dq_flags(dq) & DPAA2_DQ_STAT_EXPIRED); +} + +/** + * dpaa2_dq_seqnum() - Get the seqnum field in dequeue response + * @dq: the dequeue result + * + * seqnum is valid only if VALIDFRAME flag is TRUE + * + * Return seqnum. + */ +static inline u16 dpaa2_dq_seqnum(const struct dpaa2_dq *dq) +{ + return le16_to_cpu(dq->dq.seqnum); +} + +/** + * dpaa2_dq_odpid() - Get the odpid field in dequeue response + * @dq: the dequeue result + * + * odpid is valid only if ODPVALID flag is TRUE. + * + * Return odpid. + */ +static inline u16 dpaa2_dq_odpid(const struct dpaa2_dq *dq) +{ + return le16_to_cpu(dq->dq.oprid); +} + +/** + * dpaa2_dq_fqid() - Get the fqid in dequeue response + * @dq: the dequeue result + * + * Return fqid. + */ +static inline u32 dpaa2_dq_fqid(const struct dpaa2_dq *dq) +{ + return le32_to_cpu(dq->dq.fqid) & DQ_FQID_MASK; +} + +/** + * dpaa2_dq_byte_count() - Get the byte count in dequeue response + * @dq: the dequeue result + * + * Return the byte count remaining in the FQ. + */ +static inline u32 dpaa2_dq_byte_count(const struct dpaa2_dq *dq) +{ + return le32_to_cpu(dq->dq.fq_byte_cnt); +} + +/** + * dpaa2_dq_frame_count() - Get the frame count in dequeue response + * @dq: the dequeue result + * + * Return the frame count remaining in the FQ. + */ +static inline u32 dpaa2_dq_frame_count(const struct dpaa2_dq *dq) +{ + return le32_to_cpu(dq->dq.fq_frm_cnt) & DQ_FRAME_COUNT_MASK; +} + +/** + * dpaa2_dq_fd_ctx() - Get the frame queue context in dequeue response + * @dq: the dequeue result + * + * Return the frame queue context. + */ +static inline u64 dpaa2_dq_fqd_ctx(const struct dpaa2_dq *dq) +{ + return le64_to_cpu(dq->dq.fqd_ctx); +} + +/** + * dpaa2_dq_fd() - Get the frame descriptor in dequeue response + * @dq: the dequeue result + * + * Return the frame descriptor. + */ +static inline const struct dpaa2_fd *dpaa2_dq_fd(const struct dpaa2_dq *dq) +{ + return (const struct dpaa2_fd *)&dq->dq.fd[0]; +} + +#endif /* __FSL_DPAA2_GLOBAL_H */ --- /dev/null +++ b/drivers/staging/fsl-mc/include/dpaa2-io.h @@ -0,0 +1,190 @@ +/* + * Copyright 2014-2016 Freescale Semiconductor Inc. + * Copyright 2017 NXP + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Freescale Semiconductor nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef __FSL_DPAA2_IO_H +#define __FSL_DPAA2_IO_H + +#include +#include + +#include "dpaa2-fd.h" +#include "dpaa2-global.h" + +struct dpaa2_io; +struct dpaa2_io_store; +struct device; + +/** + * DOC: DPIO Service + * + * The DPIO service provides APIs for users to interact with the datapath + * by enqueueing and dequeing frame descriptors. + * + * The following set of APIs can be used to enqueue and dequeue frames + * as well as producing notification callbacks when data is available + * for dequeue. + */ + +/** + * struct dpaa2_io_desc - The DPIO descriptor + * @receives_notifications: Use notificaton mode. Non-zero if the DPIO + * has a channel. + * @has_8prio: Set to non-zero for channel with 8 priority WQs. Ignored + * unless receives_notification is TRUE. + * @cpu: The cpu index that at least interrupt handlers will + * execute on. + * @stash_affinity: The stash affinity for this portal favour 'cpu' + * @regs_cena: The cache enabled regs. + * @regs_cinh: The cache inhibited regs + * @dpio_id: The dpio index + * @qman_version: The qman version + * + * Describes the attributes and features of the DPIO object. + */ +struct dpaa2_io_desc { + int receives_notifications; + int has_8prio; + int cpu; + void *regs_cena; + void *regs_cinh; + int dpio_id; + u32 qman_version; +}; + +struct dpaa2_io *dpaa2_io_create(const struct dpaa2_io_desc *desc); + +void dpaa2_io_down(struct dpaa2_io *d); + +irqreturn_t dpaa2_io_irq(struct dpaa2_io *obj); + +/** + * struct dpaa2_io_notification_ctx - The DPIO notification context structure + * @cb: The callback to be invoked when the notification arrives + * @is_cdan: Zero for FQDAN, non-zero for CDAN + * @id: FQID or channel ID, needed for rearm + * @desired_cpu: The cpu on which the notifications will show up. -1 means + * any CPU. + * @dpio_id: The dpio index + * @qman64: The 64-bit context value shows up in the FQDAN/CDAN. + * @node: The list node + * @dpio_private: The dpio object internal to dpio_service + * + * Used when a FQDAN/CDAN registration is made by drivers. + */ +struct dpaa2_io_notification_ctx { + void (*cb)(struct dpaa2_io_notification_ctx *); + int is_cdan; + u32 id; + int desired_cpu; + int dpio_id; + u64 qman64; + struct list_head node; + void *dpio_private; +}; + +int dpaa2_io_service_register(struct dpaa2_io *service, + struct dpaa2_io_notification_ctx *ctx); +void dpaa2_io_service_deregister(struct dpaa2_io *service, + struct dpaa2_io_notification_ctx *ctx); +int dpaa2_io_service_rearm(struct dpaa2_io *service, + struct dpaa2_io_notification_ctx *ctx); + +int dpaa2_io_service_pull_fq(struct dpaa2_io *d, u32 fqid, + struct dpaa2_io_store *s); +int dpaa2_io_service_pull_channel(struct dpaa2_io *d, u32 channelid, + struct dpaa2_io_store *s); + +int dpaa2_io_service_enqueue_fq(struct dpaa2_io *d, u32 fqid, + const struct dpaa2_fd *fd); +int dpaa2_io_service_enqueue_qd(struct dpaa2_io *d, u32 qdid, u8 prio, + u16 qdbin, const struct dpaa2_fd *fd); +int dpaa2_io_service_release(struct dpaa2_io *d, u32 bpid, + const u64 *buffers, unsigned int num_buffers); +int dpaa2_io_service_acquire(struct dpaa2_io *d, u32 bpid, + u64 *buffers, unsigned int num_buffers); + +struct dpaa2_io_store *dpaa2_io_store_create(unsigned int max_frames, + struct device *dev); +void dpaa2_io_store_destroy(struct dpaa2_io_store *s); +struct dpaa2_dq *dpaa2_io_store_next(struct dpaa2_io_store *s, int *is_last); + +#ifdef CONFIG_FSL_QBMAN_DEBUG +int dpaa2_io_query_fq_count(struct dpaa2_io *d, uint32_t fqid, + uint32_t *fcnt, uint32_t *bcnt); +int dpaa2_io_query_bp_count(struct dpaa2_io *d, uint32_t bpid, + uint32_t *num); +#endif + + +/***************/ +/* CSCN */ +/***************/ + +/** + * struct dpaa2_cscn - The CSCN message format + * @verb: identifies the type of message (should be 0x27). + * @stat: status bits related to dequeuing response (not used) + * @state: bit 0 = 0/1 if CG is no/is congested + * @reserved: reserved byte + * @cgid: congest grp ID - the first 16 bits + * @ctx: context data + * + * Congestion management can be implemented in software through + * the use of Congestion State Change Notifications (CSCN). These + * are messages written by DPAA2 hardware to memory whenever the + * instantaneous count (I_CNT field in the CG) exceeds the + * Congestion State (CS) entrance threshold, signifying congestion + * entrance, or when the instantaneous count returns below exit + * threshold, signifying congestion exit. The format of the message + * is given by the dpaa2_cscn structure. Bit 0 of the state field + * represents congestion state written by the hardware. + */ +struct dpaa2_cscn { + u8 verb; + u8 stat; + u8 state; + u8 reserved; + __le32 cgid; + __le64 ctx; +}; + +#define DPAA2_CSCN_SIZE 64 +#define DPAA2_CSCN_ALIGN 16 + +#define DPAA2_CSCN_STATE_MASK 0x1 +#define DPAA2_CSCN_CONGESTED 1 + +static inline bool dpaa2_cscn_state_congested(struct dpaa2_cscn *cscn) +{ + return ((cscn->state & DPAA2_CSCN_STATE_MASK) == DPAA2_CSCN_CONGESTED); +} + +#endif /* __FSL_DPAA2_IO_H */ --- a/drivers/staging/fsl-mc/include/dpbp-cmd.h +++ /dev/null @@ -1,185 +0,0 @@ -/* Copyright 2013-2016 Freescale Semiconductor Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of the above-listed copyright holders nor the - * names of any contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") as published by the Free Software - * Foundation, either version 2 of that License or (at your option) any - * later version. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ -#ifndef _FSL_DPBP_CMD_H -#define _FSL_DPBP_CMD_H - -/* DPBP Version */ -#define DPBP_VER_MAJOR 2 -#define DPBP_VER_MINOR 2 - -/* Command IDs */ -#define DPBP_CMDID_CLOSE 0x800 -#define DPBP_CMDID_OPEN 0x804 -#define DPBP_CMDID_CREATE 0x904 -#define DPBP_CMDID_DESTROY 0x900 - -#define DPBP_CMDID_ENABLE 0x002 -#define DPBP_CMDID_DISABLE 0x003 -#define DPBP_CMDID_GET_ATTR 0x004 -#define DPBP_CMDID_RESET 0x005 -#define DPBP_CMDID_IS_ENABLED 0x006 - -#define DPBP_CMDID_SET_IRQ 0x010 -#define DPBP_CMDID_GET_IRQ 0x011 -#define DPBP_CMDID_SET_IRQ_ENABLE 0x012 -#define DPBP_CMDID_GET_IRQ_ENABLE 0x013 -#define DPBP_CMDID_SET_IRQ_MASK 0x014 -#define DPBP_CMDID_GET_IRQ_MASK 0x015 -#define DPBP_CMDID_GET_IRQ_STATUS 0x016 -#define DPBP_CMDID_CLEAR_IRQ_STATUS 0x017 - -#define DPBP_CMDID_SET_NOTIFICATIONS 0x01b0 -#define DPBP_CMDID_GET_NOTIFICATIONS 0x01b1 - -struct dpbp_cmd_open { - __le32 dpbp_id; -}; - -#define DPBP_ENABLE 0x1 - -struct dpbp_rsp_is_enabled { - u8 enabled; -}; - -struct dpbp_cmd_set_irq { - /* cmd word 0 */ - u8 irq_index; - u8 pad[3]; - __le32 irq_val; - /* cmd word 1 */ - __le64 irq_addr; - /* cmd word 2 */ - __le32 irq_num; -}; - -struct dpbp_cmd_get_irq { - __le32 pad; - u8 irq_index; -}; - -struct dpbp_rsp_get_irq { - /* response word 0 */ - __le32 irq_val; - __le32 pad; - /* response word 1 */ - __le64 irq_addr; - /* response word 2 */ - __le32 irq_num; - __le32 type; -}; - -struct dpbp_cmd_set_irq_enable { - u8 enable; - u8 pad[3]; - u8 irq_index; -}; - -struct dpbp_cmd_get_irq_enable { - __le32 pad; - u8 irq_index; -}; - -struct dpbp_rsp_get_irq_enable { - u8 enabled; -}; - -struct dpbp_cmd_set_irq_mask { - __le32 mask; - u8 irq_index; -}; - -struct dpbp_cmd_get_irq_mask { - __le32 pad; - u8 irq_index; -}; - -struct dpbp_rsp_get_irq_mask { - __le32 mask; -}; - -struct dpbp_cmd_get_irq_status { - __le32 status; - u8 irq_index; -}; - -struct dpbp_rsp_get_irq_status { - __le32 status; -}; - -struct dpbp_cmd_clear_irq_status { - __le32 status; - u8 irq_index; -}; - -struct dpbp_rsp_get_attributes { - /* response word 0 */ - __le16 pad; - __le16 bpid; - __le32 id; - /* response word 1 */ - __le16 version_major; - __le16 version_minor; -}; - -struct dpbp_cmd_set_notifications { - /* cmd word 0 */ - __le32 depletion_entry; - __le32 depletion_exit; - /* cmd word 1 */ - __le32 surplus_entry; - __le32 surplus_exit; - /* cmd word 2 */ - __le16 options; - __le16 pad[3]; - /* cmd word 3 */ - __le64 message_ctx; - /* cmd word 4 */ - __le64 message_iova; -}; - -struct dpbp_rsp_get_notifications { - /* response word 0 */ - __le32 depletion_entry; - __le32 depletion_exit; - /* response word 1 */ - __le32 surplus_entry; - __le32 surplus_exit; - /* response word 2 */ - __le16 options; - __le16 pad[3]; - /* response word 3 */ - __le64 message_ctx; - /* response word 4 */ - __le64 message_iova; -}; - -#endif /* _FSL_DPBP_CMD_H */ --- a/drivers/staging/fsl-mc/include/dpbp.h +++ b/drivers/staging/fsl-mc/include/dpbp.h @@ -1,4 +1,5 @@ -/* Copyright 2013-2015 Freescale Semiconductor Inc. +/* + * Copyright 2013-2016 Freescale Semiconductor Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: @@ -32,7 +33,8 @@ #ifndef __FSL_DPBP_H #define __FSL_DPBP_H -/* Data Path Buffer Pool API +/* + * Data Path Buffer Pool API * Contains initialization APIs and runtime control APIs for DPBP */ @@ -44,25 +46,8 @@ int dpbp_open(struct fsl_mc_io *mc_io, u16 *token); int dpbp_close(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token); - -/** - * struct dpbp_cfg - Structure representing DPBP configuration - * @options: place holder - */ -struct dpbp_cfg { - u32 options; -}; - -int dpbp_create(struct fsl_mc_io *mc_io, - u32 cmd_flags, - const struct dpbp_cfg *cfg, - u16 *token); - -int dpbp_destroy(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token); + u32 cmd_flags, + u16 token); int dpbp_enable(struct fsl_mc_io *mc_io, u32 cmd_flags, @@ -82,139 +67,24 @@ int dpbp_reset(struct fsl_mc_io *mc_io, u16 token); /** - * struct dpbp_irq_cfg - IRQ configuration - * @addr: Address that must be written to signal a message-based interrupt - * @val: Value to write into irq_addr address - * @irq_num: A user defined number associated with this IRQ - */ -struct dpbp_irq_cfg { - u64 addr; - u32 val; - int irq_num; -}; - -int dpbp_set_irq(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - struct dpbp_irq_cfg *irq_cfg); - -int dpbp_get_irq(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - int *type, - struct dpbp_irq_cfg *irq_cfg); - -int dpbp_set_irq_enable(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u8 en); - -int dpbp_get_irq_enable(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u8 *en); - -int dpbp_set_irq_mask(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u32 mask); - -int dpbp_get_irq_mask(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u32 *mask); - -int dpbp_get_irq_status(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u32 *status); - -int dpbp_clear_irq_status(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u32 status); - -/** * struct dpbp_attr - Structure representing DPBP attributes * @id: DPBP object ID - * @version: DPBP version * @bpid: Hardware buffer pool ID; should be used as an argument in * acquire/release operations on buffers */ struct dpbp_attr { int id; - /** - * struct version - Structure representing DPBP version - * @major: DPBP major version - * @minor: DPBP minor version - */ - struct { - u16 major; - u16 minor; - } version; u16 bpid; }; -int dpbp_get_attributes(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - struct dpbp_attr *attr); - -/** - * DPBP notifications options - */ - -/** - * BPSCN write will attempt to allocate into a cache (coherent write) - */ -#define DPBP_NOTIF_OPT_COHERENT_WRITE 0x00000001 - -/** - * struct dpbp_notification_cfg - Structure representing DPBP notifications - * towards software - * @depletion_entry: below this threshold the pool is "depleted"; - * set it to '0' to disable it - * @depletion_exit: greater than or equal to this threshold the pool exit its - * "depleted" state - * @surplus_entry: above this threshold the pool is in "surplus" state; - * set it to '0' to disable it - * @surplus_exit: less than or equal to this threshold the pool exit its - * "surplus" state - * @message_iova: MUST be given if either 'depletion_entry' or 'surplus_entry' - * is not '0' (enable); I/O virtual address (must be in DMA-able memory), - * must be 16B aligned. - * @message_ctx: The context that will be part of the BPSCN message and will - * be written to 'message_iova' - * @options: Mask of available options; use 'DPBP_NOTIF_OPT_' values - */ -struct dpbp_notification_cfg { - u32 depletion_entry; - u32 depletion_exit; - u32 surplus_entry; - u32 surplus_exit; - u64 message_iova; - u64 message_ctx; - u16 options; -}; - -int dpbp_set_notifications(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - struct dpbp_notification_cfg *cfg); - -int dpbp_get_notifications(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - struct dpbp_notification_cfg *cfg); - -/** @} */ +int dpbp_get_attributes(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + struct dpbp_attr *attr); + +int dpbp_get_api_version(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 *major_ver, + u16 *minor_ver); #endif /* __FSL_DPBP_H */ --- /dev/null +++ b/drivers/staging/fsl-mc/include/dpcon.h @@ -0,0 +1,115 @@ +/* Copyright 2013-2016 Freescale Semiconductor Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the above-listed copyright holders nor the + * names of any contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef __FSL_DPCON_H +#define __FSL_DPCON_H + +/* Data Path Concentrator API + * Contains initialization APIs and runtime control APIs for DPCON + */ + +struct fsl_mc_io; + +/** General DPCON macros */ + +/** + * Use it to disable notifications; see dpcon_set_notification() + */ +#define DPCON_INVALID_DPIO_ID (int)(-1) + +int dpcon_open(struct fsl_mc_io *mc_io, + u32 cmd_flags, + int dpcon_id, + u16 *token); + +int dpcon_close(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token); + +int dpcon_enable(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token); + +int dpcon_disable(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token); + +int dpcon_is_enabled(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + int *en); + +int dpcon_reset(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token); + +/** + * struct dpcon_attr - Structure representing DPCON attributes + * @id: DPCON object ID + * @qbman_ch_id: Channel ID to be used by dequeue operation + * @num_priorities: Number of priorities for the DPCON channel (1-8) + */ +struct dpcon_attr { + int id; + u16 qbman_ch_id; + u8 num_priorities; +}; + +int dpcon_get_attributes(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + struct dpcon_attr *attr); + +/** + * struct dpcon_notification_cfg - Structure representing notification params + * @dpio_id: DPIO object ID; must be configured with a notification channel; + * to disable notifications set it to 'DPCON_INVALID_DPIO_ID'; + * @priority: Priority selection within the DPIO channel; valid values + * are 0-7, depending on the number of priorities in that channel + * @user_ctx: User context value provided with each CDAN message + */ +struct dpcon_notification_cfg { + int dpio_id; + u8 priority; + u64 user_ctx; +}; + +int dpcon_set_notification(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + struct dpcon_notification_cfg *cfg); + +int dpcon_get_api_version(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 *major_ver, + u16 *minor_ver); + +#endif /* __FSL_DPCON_H */ --- a/drivers/staging/fsl-mc/include/dpmng.h +++ b/drivers/staging/fsl-mc/include/dpmng.h @@ -1,4 +1,5 @@ -/* Copyright 2013-2015 Freescale Semiconductor Inc. +/* + * Copyright 2013-2016 Freescale Semiconductor Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: @@ -32,7 +33,8 @@ #ifndef __FSL_DPMNG_H #define __FSL_DPMNG_H -/* Management Complex General API +/* + * Management Complex General API * Contains general API for the Management Complex firmware */ @@ -58,12 +60,8 @@ struct mc_version { u32 revision; }; -int mc_get_version(struct fsl_mc_io *mc_io, - u32 cmd_flags, - struct mc_version *mc_ver_info); - -int dpmng_get_container_id(struct fsl_mc_io *mc_io, - u32 cmd_flags, - int *container_id); +int mc_get_version(struct fsl_mc_io *mc_io, + u32 cmd_flags, + struct mc_version *mc_ver_info); #endif /* __FSL_DPMNG_H */ --- /dev/null +++ b/drivers/staging/fsl-mc/include/dpopr.h @@ -0,0 +1,110 @@ +/* + * Copyright 2017 NXP + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the above-listed copyright holders nor the + * names of any contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef __FSL_DPOPR_H_ +#define __FSL_DPOPR_H_ + +/* Data Path Order Restoration API + * Contains initialization APIs and runtime APIs for the Order Restoration + */ + +/** Order Restoration properties */ + +/** + * Create a new Order Point Record option + */ +#define OPR_OPT_CREATE 0x1 +/** + * Retire an existing Order Point Record option + */ +#define OPR_OPT_RETIRE 0x2 + +/** + * struct opr_cfg - Structure representing OPR configuration + * @oprrws: Order point record (OPR) restoration window size (0 to 5) + * 0 - Window size is 32 frames. + * 1 - Window size is 64 frames. + * 2 - Window size is 128 frames. + * 3 - Window size is 256 frames. + * 4 - Window size is 512 frames. + * 5 - Window size is 1024 frames. + * @oa: OPR auto advance NESN window size (0 disabled, 1 enabled) + * @olws: OPR acceptable late arrival window size (0 to 3) + * 0 - Disabled. Late arrivals are always rejected. + * 1 - Window size is 32 frames. + * 2 - Window size is the same as the OPR restoration + * window size configured in the OPRRWS field. + * 3 - Window size is 8192 frames. Late arrivals are + * always accepted. + * @oeane: Order restoration list (ORL) resource exhaustion + * advance NESN enable (0 disabled, 1 enabled) + * @oloe: OPR loose ordering enable (0 disabled, 1 enabled) + */ +struct opr_cfg { + u8 oprrws; + u8 oa; + u8 olws; + u8 oeane; + u8 oloe; +}; + +/** + * struct opr_qry - Structure representing OPR configuration + * @enable: Enabled state + * @rip: Retirement In Progress + * @ndsn: Next dispensed sequence number + * @nesn: Next expected sequence number + * @ea_hseq: Early arrival head sequence number + * @hseq_nlis: HSEQ not last in sequence + * @ea_tseq: Early arrival tail sequence number + * @tseq_nlis: TSEQ not last in sequence + * @ea_tptr: Early arrival tail pointer + * @ea_hptr: Early arrival head pointer + * @opr_id: Order Point Record ID + * @opr_vid: Order Point Record Virtual ID + */ +struct opr_qry { + char enable; + char rip; + u16 ndsn; + u16 nesn; + u16 ea_hseq; + char hseq_nlis; + u16 ea_tseq; + char tseq_nlis; + u16 ea_tptr; + u16 ea_hptr; + u16 opr_id; + u16 opr_vid; +}; + +#endif /* __FSL_DPOPR_H_ */ --- a/drivers/staging/fsl-mc/include/dprc.h +++ b/drivers/staging/fsl-mc/include/dprc.h @@ -1,4 +1,5 @@ -/* Copyright 2013-2015 Freescale Semiconductor Inc. +/* + * Copyright 2013-2016 Freescale Semiconductor Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: @@ -34,26 +35,13 @@ #include "mc-cmd.h" -/* Data Path Resource Container API +/* + * Data Path Resource Container API * Contains DPRC API for managing and querying DPAA resources */ struct fsl_mc_io; -/** - * Set this value as the icid value in dprc_cfg structure when creating a - * container, in case the ICID is not selected by the user and should be - * allocated by the DPRC from the pool of ICIDs. - */ -#define DPRC_GET_ICID_FROM_POOL (u16)(~(0)) - -/** - * Set this value as the portal_id value in dprc_cfg structure when creating a - * container, in case the portal ID is not specifically selected by the - * user and should be allocated by the DPRC from the pool of portal ids. - */ -#define DPRC_GET_PORTAL_ID_FROM_POOL (int)(~(0)) - int dprc_open(struct fsl_mc_io *mc_io, u32 cmd_flags, int container_id, @@ -63,75 +51,6 @@ int dprc_close(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token); -/** - * Container general options - * - * These options may be selected at container creation by the container creator - * and can be retrieved using dprc_get_attributes() - */ - -/* Spawn Policy Option allowed - Indicates that the new container is allowed - * to spawn and have its own child containers. - */ -#define DPRC_CFG_OPT_SPAWN_ALLOWED 0x00000001 - -/* General Container allocation policy - Indicates that the new container is - * allowed to allocate requested resources from its parent container; if not - * set, the container is only allowed to use resources in its own pools; Note - * that this is a container's global policy, but the parent container may - * override it and set specific quota per resource type. - */ -#define DPRC_CFG_OPT_ALLOC_ALLOWED 0x00000002 - -/* Object initialization allowed - software context associated with this - * container is allowed to invoke object initialization operations. - */ -#define DPRC_CFG_OPT_OBJ_CREATE_ALLOWED 0x00000004 - -/* Topology change allowed - software context associated with this - * container is allowed to invoke topology operations, such as attach/detach - * of network objects. - */ -#define DPRC_CFG_OPT_TOPOLOGY_CHANGES_ALLOWED 0x00000008 - -/* AIOP - Indicates that container belongs to AIOP. */ -#define DPRC_CFG_OPT_AIOP 0x00000020 - -/* IRQ Config - Indicates that the container allowed to configure its IRQs. */ -#define DPRC_CFG_OPT_IRQ_CFG_ALLOWED 0x00000040 - -/** - * struct dprc_cfg - Container configuration options - * @icid: Container's ICID; if set to 'DPRC_GET_ICID_FROM_POOL', a free - * ICID value is allocated by the DPRC - * @portal_id: Portal ID; if set to 'DPRC_GET_PORTAL_ID_FROM_POOL', a free - * portal ID is allocated by the DPRC - * @options: Combination of 'DPRC_CFG_OPT_' options - * @label: Object's label - */ -struct dprc_cfg { - u16 icid; - int portal_id; - u64 options; - char label[16]; -}; - -int dprc_create_container(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - struct dprc_cfg *cfg, - int *child_container_id, - u64 *child_portal_offset); - -int dprc_destroy_container(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - int child_container_id); - -int dprc_reset_container(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - int child_container_id); /* IRQ */ @@ -139,7 +58,7 @@ int dprc_reset_container(struct fsl_mc_i #define DPRC_IRQ_INDEX 0 /* Number of dprc's IRQs */ -#define DPRC_NUM_OF_IRQS 1 +#define DPRC_NUM_OF_IRQS 1 /* DPRC IRQ events */ @@ -151,12 +70,14 @@ int dprc_reset_container(struct fsl_mc_i #define DPRC_IRQ_EVENT_RES_ADDED 0x00000004 /* IRQ event - Indicates that resources removed from the container */ #define DPRC_IRQ_EVENT_RES_REMOVED 0x00000008 -/* IRQ event - Indicates that one of the descendant containers that opened by +/* + * IRQ event - Indicates that one of the descendant containers that opened by * this container is destroyed */ #define DPRC_IRQ_EVENT_CONTAINER_DESTROYED 0x00000010 -/* IRQ event - Indicates that on one of the container's opened object is +/* + * IRQ event - Indicates that on one of the container's opened object is * destroyed */ #define DPRC_IRQ_EVENT_OBJ_DESTROYED 0x00000020 @@ -171,59 +92,59 @@ int dprc_reset_container(struct fsl_mc_i * @irq_num: A user defined number associated with this IRQ */ struct dprc_irq_cfg { - phys_addr_t paddr; - u32 val; - int irq_num; -}; - -int dprc_set_irq(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - struct dprc_irq_cfg *irq_cfg); - -int dprc_get_irq(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - int *type, - struct dprc_irq_cfg *irq_cfg); - -int dprc_set_irq_enable(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u8 en); - -int dprc_get_irq_enable(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u8 *en); - -int dprc_set_irq_mask(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u32 mask); - -int dprc_get_irq_mask(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u32 *mask); - -int dprc_get_irq_status(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u32 *status); - -int dprc_clear_irq_status(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u32 status); + phys_addr_t paddr; + u32 val; + int irq_num; +}; + +int dprc_set_irq(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u8 irq_index, + struct dprc_irq_cfg *irq_cfg); + +int dprc_get_irq(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u8 irq_index, + int *type, + struct dprc_irq_cfg *irq_cfg); + +int dprc_set_irq_enable(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u8 irq_index, + u8 en); + +int dprc_get_irq_enable(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u8 irq_index, + u8 *en); + +int dprc_set_irq_mask(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u8 irq_index, + u32 mask); + +int dprc_get_irq_mask(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u8 irq_index, + u32 *mask); + +int dprc_get_irq_status(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u8 irq_index, + u32 *status); + +int dprc_clear_irq_status(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u8 irq_index, + u32 status); /** * struct dprc_attributes - Container attributes @@ -231,114 +152,23 @@ int dprc_clear_irq_status(struct fsl_mc_ * @icid: Container's ICID * @portal_id: Container's portal ID * @options: Container's options as set at container's creation - * @version: DPRC version */ struct dprc_attributes { int container_id; u16 icid; int portal_id; u64 options; - /** - * struct version - DPRC version - * @major: DPRC major version - * @minor: DPRC minor version - */ - struct { - u16 major; - u16 minor; - } version; }; -int dprc_get_attributes(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - struct dprc_attributes *attributes); - -int dprc_set_res_quota(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - int child_container_id, - char *type, - u16 quota); - -int dprc_get_res_quota(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - int child_container_id, - char *type, - u16 *quota); - -/* Resource request options */ - -/* Explicit resource ID request - The requested objects/resources - * are explicit and sequential (in case of resources). - * The base ID is given at res_req at base_align field - */ -#define DPRC_RES_REQ_OPT_EXPLICIT 0x00000001 - -/* Aligned resources request - Relevant only for resources - * request (and not objects). Indicates that resources base ID should be - * sequential and aligned to the value given at dprc_res_req base_align field - */ -#define DPRC_RES_REQ_OPT_ALIGNED 0x00000002 - -/* Plugged Flag - Relevant only for object assignment request. - * Indicates that after all objects assigned. An interrupt will be invoked at - * the relevant GPP. The assigned object will be marked as plugged. - * plugged objects can't be assigned from their container - */ -#define DPRC_RES_REQ_OPT_PLUGGED 0x00000004 - -/** - * struct dprc_res_req - Resource request descriptor, to be used in assignment - * or un-assignment of resources and objects. - * @type: Resource/object type: Represent as a NULL terminated string. - * This string may received by using dprc_get_pool() to get resource - * type and dprc_get_obj() to get object type; - * Note: it is not possible to assign/un-assign DPRC objects - * @num: Number of resources - * @options: Request options: combination of DPRC_RES_REQ_OPT_ options - * @id_base_align: In case of explicit assignment (DPRC_RES_REQ_OPT_EXPLICIT - * is set at option), this field represents the required base ID - * for resource allocation; In case of aligned assignment - * (DPRC_RES_REQ_OPT_ALIGNED is set at option), this field - * indicates the required alignment for the resource ID(s) - - * use 0 if there is no alignment or explicit ID requirements - */ -struct dprc_res_req { - char type[16]; - u32 num; - u32 options; - int id_base_align; -}; - -int dprc_assign(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - int container_id, - struct dprc_res_req *res_req); - -int dprc_unassign(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - int child_container_id, - struct dprc_res_req *res_req); - -int dprc_get_pool_count(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - int *pool_count); - -int dprc_get_pool(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - int pool_index, - char *type); +int dprc_get_attributes(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + struct dprc_attributes *attributes); int dprc_get_obj_count(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - int *obj_count); + u32 cmd_flags, + u16 token, + int *obj_count); /* Objects Attributes Flags */ @@ -353,7 +183,7 @@ int dprc_get_obj_count(struct fsl_mc_io * masters; * user is responsible for proper memory handling through IOMMU configuration. */ -#define DPRC_OBJ_FLAG_NO_MEM_SHAREABILITY 0x0001 +#define DPRC_OBJ_FLAG_NO_MEM_SHAREABILITY 0x0001 /** * struct dprc_obj_desc - Object descriptor, returned from dprc_get_obj() @@ -381,41 +211,41 @@ struct dprc_obj_desc { u16 flags; }; -int dprc_get_obj(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - int obj_index, - struct dprc_obj_desc *obj_desc); - -int dprc_get_obj_desc(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - char *obj_type, - int obj_id, - struct dprc_obj_desc *obj_desc); - -int dprc_set_obj_irq(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - char *obj_type, - int obj_id, - u8 irq_index, - struct dprc_irq_cfg *irq_cfg); - -int dprc_get_obj_irq(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - char *obj_type, - int obj_id, - u8 irq_index, - int *type, - struct dprc_irq_cfg *irq_cfg); - -int dprc_get_res_count(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - char *type, - int *res_count); +int dprc_get_obj(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + int obj_index, + struct dprc_obj_desc *obj_desc); + +int dprc_get_obj_desc(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + char *obj_type, + int obj_id, + struct dprc_obj_desc *obj_desc); + +int dprc_set_obj_irq(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + char *obj_type, + int obj_id, + u8 irq_index, + struct dprc_irq_cfg *irq_cfg); + +int dprc_get_obj_irq(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + char *obj_type, + int obj_id, + u8 irq_index, + int *type, + struct dprc_irq_cfg *irq_cfg); + +int dprc_get_res_count(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + char *type, + int *res_count); /** * enum dprc_iter_status - Iteration status @@ -429,27 +259,6 @@ enum dprc_iter_status { DPRC_ITER_STATUS_LAST = 2 }; -/** - * struct dprc_res_ids_range_desc - Resource ID range descriptor - * @base_id: Base resource ID of this range - * @last_id: Last resource ID of this range - * @iter_status: Iteration status - should be set to DPRC_ITER_STATUS_FIRST at - * first iteration; while the returned marker is DPRC_ITER_STATUS_MORE, - * additional iterations are needed, until the returned marker is - * DPRC_ITER_STATUS_LAST - */ -struct dprc_res_ids_range_desc { - int base_id; - int last_id; - enum dprc_iter_status iter_status; -}; - -int dprc_get_res_ids(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - char *type, - struct dprc_res_ids_range_desc *range_desc); - /* Region flags */ /* Cacheable - Indicates that region should be mapped as cacheable */ #define DPRC_REGION_CACHEABLE 0x00000001 @@ -481,64 +290,27 @@ struct dprc_region_desc { enum dprc_region_type type; }; -int dprc_get_obj_region(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - char *obj_type, - int obj_id, - u8 region_index, - struct dprc_region_desc *region_desc); - -int dprc_set_obj_label(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - char *obj_type, - int obj_id, - char *label); +int dprc_get_obj_region(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + char *obj_type, + int obj_id, + u8 region_index, + struct dprc_region_desc *region_desc); -/** - * struct dprc_endpoint - Endpoint description for link connect/disconnect - * operations - * @type: Endpoint object type: NULL terminated string - * @id: Endpoint object ID - * @if_id: Interface ID; should be set for endpoints with multiple - * interfaces ("dpsw", "dpdmux"); for others, always set to 0 - */ -struct dprc_endpoint { - char type[16]; - int id; - int if_id; -}; +int dprc_get_api_version(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 *major_ver, + u16 *minor_ver); -/** - * struct dprc_connection_cfg - Connection configuration. - * Used for virtual connections only - * @committed_rate: Committed rate (Mbits/s) - * @max_rate: Maximum rate (Mbits/s) - */ -struct dprc_connection_cfg { - u32 committed_rate; - u32 max_rate; -}; +int dprc_get_container_id(struct fsl_mc_io *mc_io, + u32 cmd_flags, + int *container_id); -int dprc_connect(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - const struct dprc_endpoint *endpoint1, - const struct dprc_endpoint *endpoint2, - const struct dprc_connection_cfg *cfg); - -int dprc_disconnect(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - const struct dprc_endpoint *endpoint); - -int dprc_get_connection(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - const struct dprc_endpoint *endpoint1, - struct dprc_endpoint *endpoint2, - int *state); +int dprc_reset_container(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + int child_container_id); #endif /* _FSL_DPRC_H */ --- a/drivers/staging/fsl-mc/include/mc-bus.h +++ b/drivers/staging/fsl-mc/include/mc-bus.h @@ -1,7 +1,7 @@ /* * Freescale Management Complex (MC) bus declarations * - * Copyright (C) 2014 Freescale Semiconductor, Inc. + * Copyright (C) 2014-2016 Freescale Semiconductor, Inc. * Author: German Rivera * * This file is licensed under the terms of the GNU General Public @@ -42,8 +42,8 @@ struct msi_domain_info; */ struct fsl_mc_resource_pool { enum fsl_mc_pool_type type; - int16_t max_count; - int16_t free_count; + int max_count; + int free_count; struct mutex mutex; /* serializes access to free_list */ struct list_head free_list; struct fsl_mc_bus *mc_bus; @@ -73,6 +73,7 @@ struct fsl_mc_bus { int dprc_scan_container(struct fsl_mc_device *mc_bus_dev); int dprc_scan_objects(struct fsl_mc_device *mc_bus_dev, + const char *driver_override, unsigned int *total_irq_count); int __init dprc_driver_init(void); --- a/drivers/staging/fsl-mc/include/mc-cmd.h +++ b/drivers/staging/fsl-mc/include/mc-cmd.h @@ -1,4 +1,5 @@ -/* Copyright 2013-2015 Freescale Semiconductor Inc. +/* + * Copyright 2013-2016 Freescale Semiconductor Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: @@ -48,6 +49,15 @@ struct mc_command { u64 params[MC_CMD_NUM_OF_PARAMS]; }; +struct mc_rsp_create { + __le32 object_id; +}; + +struct mc_rsp_api_ver { + __le16 major_ver; + __le16 minor_ver; +}; + enum mc_cmd_status { MC_CMD_STATUS_OK = 0x0, /* Completed successfully */ MC_CMD_STATUS_READY = 0x1, /* Ready to be processed */ @@ -72,11 +82,6 @@ enum mc_cmd_status { /* Command completion flag */ #define MC_CMD_FLAG_INTR_DIS 0x01 -#define MC_CMD_HDR_CMDID_MASK 0xFFF0 -#define MC_CMD_HDR_CMDID_SHIFT 4 -#define MC_CMD_HDR_TOKEN_MASK 0xFFC0 -#define MC_CMD_HDR_TOKEN_SHIFT 6 - static inline u64 mc_encode_cmd_header(u16 cmd_id, u32 cmd_flags, u16 token) @@ -84,10 +89,8 @@ static inline u64 mc_encode_cmd_header(u u64 header = 0; struct mc_cmd_header *hdr = (struct mc_cmd_header *)&header; - hdr->cmd_id = cpu_to_le16((cmd_id << MC_CMD_HDR_CMDID_SHIFT) & - MC_CMD_HDR_CMDID_MASK); - hdr->token = cpu_to_le16((token << MC_CMD_HDR_TOKEN_SHIFT) & - MC_CMD_HDR_TOKEN_MASK); + hdr->cmd_id = cpu_to_le16(cmd_id); + hdr->token = cpu_to_le16(token); hdr->status = MC_CMD_STATUS_READY; if (cmd_flags & MC_CMD_FLAG_PRI) hdr->flags_hw = MC_CMD_FLAG_PRI; @@ -102,7 +105,26 @@ static inline u16 mc_cmd_hdr_read_token( struct mc_cmd_header *hdr = (struct mc_cmd_header *)&cmd->header; u16 token = le16_to_cpu(hdr->token); - return (token & MC_CMD_HDR_TOKEN_MASK) >> MC_CMD_HDR_TOKEN_SHIFT; + return token; +} + +static inline u32 mc_cmd_read_object_id(struct mc_command *cmd) +{ + struct mc_rsp_create *rsp_params; + + rsp_params = (struct mc_rsp_create *)cmd->params; + return le32_to_cpu(rsp_params->object_id); +} + +static inline void mc_cmd_read_api_version(struct mc_command *cmd, + u16 *major_ver, + u16 *minor_ver) +{ + struct mc_rsp_api_ver *rsp_params; + + rsp_params = (struct mc_rsp_api_ver *)cmd->params; + *major_ver = le16_to_cpu(rsp_params->major_ver); + *minor_ver = le16_to_cpu(rsp_params->minor_ver); } #endif /* __FSL_MC_CMD_H */ --- a/drivers/staging/fsl-mc/include/mc-sys.h +++ b/drivers/staging/fsl-mc/include/mc-sys.h @@ -1,4 +1,5 @@ -/* Copyright 2013-2014 Freescale Semiconductor Inc. +/* + * Copyright 2013-2016 Freescale Semiconductor Inc. * * Interface of the I/O services to send MC commands to the MC hardware * --- a/drivers/staging/fsl-mc/include/mc.h +++ b/drivers/staging/fsl-mc/include/mc.h @@ -1,7 +1,7 @@ /* * Freescale Management Complex (MC) bus public interface * - * Copyright (C) 2014 Freescale Semiconductor, Inc. + * Copyright (C) 2014-2016 Freescale Semiconductor, Inc. * Author: German Rivera * * This file is licensed under the terms of the GNU General Public @@ -81,7 +81,7 @@ enum fsl_mc_pool_type { */ struct fsl_mc_resource { enum fsl_mc_pool_type type; - int32_t id; + s32 id; void *data; struct fsl_mc_resource_pool *parent_pool; struct list_head node; @@ -122,6 +122,7 @@ struct fsl_mc_device_irq { * @regions: pointer to array of MMIO region entries * @irqs: pointer to array of pointers to interrupts allocated to this device * @resource: generic resource associated with this MC object device, if any. + * @driver_override: Driver name to force a match * * Generic device object for MC object devices that are "attached" to a * MC bus. @@ -154,6 +155,7 @@ struct fsl_mc_device { struct resource *regions; struct fsl_mc_device_irq **irqs; struct fsl_mc_resource *resource; + const char *driver_override; }; #define to_fsl_mc_device(_dev) \ @@ -175,6 +177,8 @@ struct fsl_mc_device { #define fsl_mc_driver_register(drv) \ __fsl_mc_driver_register(drv, THIS_MODULE) +void fsl_mc_device_remove(struct fsl_mc_device *mc_dev); + int __must_check __fsl_mc_driver_register(struct fsl_mc_driver *fsl_mc_driver, struct module *owner); @@ -198,4 +202,13 @@ int __must_check fsl_mc_allocate_irqs(st void fsl_mc_free_irqs(struct fsl_mc_device *mc_dev); +void fsl_mc_dma_configure(struct fsl_mc_device *mc_dev, + struct device_node *fsl_mc_platform_node, int coherent); + +#ifdef CONFIG_FSL_MC_BUS +struct iommu_group *fsl_mc_device_group(struct device *dev); +#else +#define fsl_mc_device_group(__dev) NULL +#endif + #endif /* _FSL_MC_H_ */