From 54bcaca10728c1a1c8adfa48124ea79cce4ef929 Mon Sep 17 00:00:00 2001 From: Razvan Stefanescu Date: Tue, 22 Sep 2015 08:43:08 +0300 Subject: [PATCH 215/226] dpaa2-evb: Added Edge Virtual Bridge driver This is a commit of the cummulative, squashed dpaa2-evb patches. All the commit logs are preserved below. Signed-off-by: Stuart Yoder ---------------------------------------------------------------- dpaa2-evb: Added Edge Virtual Bridge driver This contains the following patches migrated from linux-v4.0: staging: fsl-dpaa2: evb: Added Edge Virtual Bridge driver staging: fsl-dpaa2: evb: Added ethtool port counters staging: fsl-dpaa2: evb: Include by default in configuration staging: fsl-dpaa2: evb: Rebasing onto kernel 4.0 staging: fsl-dpaa2: evb: Port to MC-0.7 FLibs dpaa2-evb: Set carrier state on port open dpaa2-evb: Add support for link state update dpaa2-evb: Update flib to MC 8.0.1 staging: fsl-mc: migrated remaining flibs for MC fw 8.0.0 (split) Inital patches have been signed-off by: Alex Marginean J. German Rivera Bogdan Hamciuc Razvan Stefanescu And reviewed by: Stuart Yoder Porting to linux-v4.1 requires changes related to iflink usage and ndo_bridge_getlink() parameters list. Signed-off-by: Razvan Stefanescu dpaa2-evb: Port to linux-v4.1 Update iflink usage. Update evb_getlink() parameter list to match ndo_bridge_getlink(). Signed-off-by: Razvan Stefanescu dpaa2-evb: Add VLAN_8021Q dependency EVB traffic steering methods related to VLAN require VLAN support in kernel. Signed-off-by: Razvan Stefanescu dpaa2-evb: Update dpdmux binary interface to 5.0 This corresponds to MC release 0.8.0. Signed-off-by: Razvan Stefanescu dpaa2-evb: Add support to set max frame length. All the packets bigger than max_frame_length will be dropped. Signed-off-by: Mihaela Panescu dpaa2-evb: resolve compile issues on uprev to 4.5 -irq_number field no longer exists in fsl-mc interrupt struct -netdev_master_upper_dev_link() has 2 new parameters, which are set to NULL for now Signed-off-by: Stuart Yoder --- MAINTAINERS | 6 + drivers/staging/fsl-dpaa2/Kconfig | 1 + drivers/staging/fsl-dpaa2/Makefile | 1 + drivers/staging/fsl-dpaa2/evb/Kconfig | 8 + drivers/staging/fsl-dpaa2/evb/Makefile | 10 + drivers/staging/fsl-dpaa2/evb/dpdmux-cmd.h | 256 ++++++ drivers/staging/fsl-dpaa2/evb/dpdmux.c | 567 +++++++++++++ drivers/staging/fsl-dpaa2/evb/dpdmux.h | 724 +++++++++++++++++ drivers/staging/fsl-dpaa2/evb/evb.c | 1216 ++++++++++++++++++++++++++++ 9 files changed, 2789 insertions(+) create mode 100644 drivers/staging/fsl-dpaa2/evb/Kconfig create mode 100644 drivers/staging/fsl-dpaa2/evb/Makefile create mode 100644 drivers/staging/fsl-dpaa2/evb/dpdmux-cmd.h create mode 100644 drivers/staging/fsl-dpaa2/evb/dpdmux.c create mode 100644 drivers/staging/fsl-dpaa2/evb/dpdmux.h create mode 100644 drivers/staging/fsl-dpaa2/evb/evb.c --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4560,6 +4560,12 @@ L: linux-kernel@vger.kernel.org S: Maintained F: drivers/staging/fsl-dpaa2/mac/ ++FREESCALE DPAA2 EDGE VIRTUAL BRIDGE DRIVER +M: Alex Marginean +L: linux-kernel@vger.kernel.org +S: Maintained +F: drivers/staging/fsl-dpaa2/evb/ + FREEVXFS FILESYSTEM M: Christoph Hellwig W: ftp://ftp.openlinux.org/pub/people/hch/vxfs --- a/drivers/staging/fsl-dpaa2/Kconfig +++ b/drivers/staging/fsl-dpaa2/Kconfig @@ -10,3 +10,4 @@ config FSL_DPAA2 # TODO move DPIO driver in-here? source "drivers/staging/fsl-dpaa2/ethernet/Kconfig" source "drivers/staging/fsl-dpaa2/mac/Kconfig" +source "drivers/staging/fsl-dpaa2/evb/Kconfig" --- a/drivers/staging/fsl-dpaa2/Makefile +++ b/drivers/staging/fsl-dpaa2/Makefile @@ -4,3 +4,4 @@ obj-$(CONFIG_FSL_DPAA2_ETH) += ethernet/ obj-$(CONFIG_FSL_DPAA2_MAC) += mac/ +obj-$(CONFIG_FSL_DPAA2_EVB) += evb/ --- /dev/null +++ b/drivers/staging/fsl-dpaa2/evb/Kconfig @@ -0,0 +1,8 @@ +config FSL_DPAA2_EVB + tristate "DPAA2 Edge Virtual Bridge" + depends on FSL_MC_BUS && FSL_DPAA2 && FSL_DPAA2_ETH + select FSL_DPAA2_MAC + select VLAN_8021Q + default y + ---help--- + Prototype driver for DPAA2 Edge Virtual Bridge. --- /dev/null +++ b/drivers/staging/fsl-dpaa2/evb/Makefile @@ -0,0 +1,10 @@ + +obj-$(CONFIG_FSL_DPAA2_EVB) += dpaa2-evb.o + +dpaa2-evb-objs := evb.o dpdmux.o + +all: + make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules + +clean: + make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean --- /dev/null +++ b/drivers/staging/fsl-dpaa2/evb/dpdmux-cmd.h @@ -0,0 +1,256 @@ +/* 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_DPDMUX_CMD_H +#define _FSL_DPDMUX_CMD_H + +/* DPDMUX Version */ +#define DPDMUX_VER_MAJOR 5 +#define DPDMUX_VER_MINOR 0 + +/* Command IDs */ +#define DPDMUX_CMDID_CLOSE 0x800 +#define DPDMUX_CMDID_OPEN 0x806 +#define DPDMUX_CMDID_CREATE 0x906 +#define DPDMUX_CMDID_DESTROY 0x900 + +#define DPDMUX_CMDID_ENABLE 0x002 +#define DPDMUX_CMDID_DISABLE 0x003 +#define DPDMUX_CMDID_GET_ATTR 0x004 +#define DPDMUX_CMDID_RESET 0x005 +#define DPDMUX_CMDID_IS_ENABLED 0x006 + +#define DPDMUX_CMDID_SET_IRQ 0x010 +#define DPDMUX_CMDID_GET_IRQ 0x011 +#define DPDMUX_CMDID_SET_IRQ_ENABLE 0x012 +#define DPDMUX_CMDID_GET_IRQ_ENABLE 0x013 +#define DPDMUX_CMDID_SET_IRQ_MASK 0x014 +#define DPDMUX_CMDID_GET_IRQ_MASK 0x015 +#define DPDMUX_CMDID_GET_IRQ_STATUS 0x016 +#define DPDMUX_CMDID_CLEAR_IRQ_STATUS 0x017 + +#define DPDMUX_CMDID_UL_SET_MAX_FRAME_LENGTH 0x0a1 + +#define DPDMUX_CMDID_UL_RESET_COUNTERS 0x0a3 + +#define DPDMUX_CMDID_IF_SET_ACCEPTED_FRAMES 0x0a7 +#define DPDMUX_CMDID_IF_GET_ATTR 0x0a8 + +#define DPDMUX_CMDID_IF_ADD_L2_RULE 0x0b0 +#define DPDMUX_CMDID_IF_REMOVE_L2_RULE 0x0b1 +#define DPDMUX_CMDID_IF_GET_COUNTER 0x0b2 +#define DPDMUX_CMDID_IF_SET_LINK_CFG 0x0b3 +#define DPDMUX_CMDID_IF_GET_LINK_STATE 0x0b4 + +/* cmd, param, offset, width, type, arg_name */ +#define DPDMUX_CMD_OPEN(cmd, dpdmux_id) \ + MC_CMD_OP(cmd, 0, 0, 32, int, dpdmux_id) + +/* cmd, param, offset, width, type, arg_name */ +#define DPDMUX_CMD_CREATE(cmd, cfg) \ +do { \ + MC_CMD_OP(cmd, 0, 0, 8, enum dpdmux_method, cfg->method);\ + MC_CMD_OP(cmd, 0, 8, 8, enum dpdmux_manip, cfg->manip);\ + MC_CMD_OP(cmd, 0, 16, 16, uint16_t, cfg->num_ifs);\ + MC_CMD_OP(cmd, 1, 0, 16, uint16_t, cfg->adv.max_dmat_entries);\ + MC_CMD_OP(cmd, 1, 16, 16, uint16_t, cfg->adv.max_mc_groups);\ + MC_CMD_OP(cmd, 1, 32, 16, uint16_t, cfg->adv.max_vlan_ids);\ + MC_CMD_OP(cmd, 2, 0, 64, uint64_t, cfg->adv.options);\ +} while (0) + +/* cmd, param, offset, width, type, arg_name */ +#define DPDMUX_RSP_IS_ENABLED(cmd, en) \ + MC_RSP_OP(cmd, 0, 0, 1, int, en) + +/* cmd, param, offset, width, type, arg_name */ +#define DPDMUX_CMD_SET_IRQ(cmd, irq_index, irq_cfg) \ +do { \ + MC_CMD_OP(cmd, 0, 0, 8, uint8_t, irq_index);\ + MC_CMD_OP(cmd, 0, 32, 32, uint32_t, irq_cfg->val);\ + MC_CMD_OP(cmd, 1, 0, 64, uint64_t, irq_cfg->addr);\ + MC_CMD_OP(cmd, 2, 0, 32, int, irq_cfg->irq_num); \ +} while (0) + +/* cmd, param, offset, width, type, arg_name */ +#define DPDMUX_CMD_GET_IRQ(cmd, irq_index) \ + MC_CMD_OP(cmd, 0, 32, 8, uint8_t, irq_index) + +/* cmd, param, offset, width, type, arg_name */ +#define DPDMUX_RSP_GET_IRQ(cmd, type, irq_cfg) \ +do { \ + MC_RSP_OP(cmd, 0, 0, 32, uint32_t, irq_cfg->val); \ + MC_RSP_OP(cmd, 1, 0, 64, uint64_t, irq_cfg->addr); \ + MC_RSP_OP(cmd, 2, 0, 32, int, irq_cfg->irq_num); \ + MC_RSP_OP(cmd, 2, 32, 32, int, type); \ +} while (0) + +/* cmd, param, offset, width, type, arg_name */ +#define DPDMUX_CMD_SET_IRQ_ENABLE(cmd, irq_index, en) \ +do { \ + MC_CMD_OP(cmd, 0, 0, 8, uint8_t, en);\ + MC_CMD_OP(cmd, 0, 32, 8, uint8_t, irq_index);\ +} while (0) + +/* cmd, param, offset, width, type, arg_name */ +#define DPDMUX_CMD_GET_IRQ_ENABLE(cmd, irq_index) \ + MC_CMD_OP(cmd, 0, 32, 8, uint8_t, irq_index) + +/* cmd, param, offset, width, type, arg_name */ +#define DPDMUX_RSP_GET_IRQ_ENABLE(cmd, en) \ + MC_RSP_OP(cmd, 0, 0, 8, uint8_t, en) + +/* cmd, param, offset, width, type, arg_name */ +#define DPDMUX_CMD_SET_IRQ_MASK(cmd, irq_index, mask) \ +do { \ + MC_CMD_OP(cmd, 0, 0, 32, uint32_t, mask); \ + MC_CMD_OP(cmd, 0, 32, 8, uint8_t, irq_index); \ +} while (0) + +/* cmd, param, offset, width, type, arg_name */ +#define DPDMUX_CMD_GET_IRQ_MASK(cmd, irq_index) \ + MC_CMD_OP(cmd, 0, 32, 8, uint8_t, irq_index) + +/* cmd, param, offset, width, type, arg_name */ +#define DPDMUX_RSP_GET_IRQ_MASK(cmd, mask) \ + MC_RSP_OP(cmd, 0, 0, 32, uint32_t, mask) + +/* cmd, param, offset, width, type, arg_name */ +#define DPDMUX_CMD_GET_IRQ_STATUS(cmd, irq_index, status) \ +do { \ + MC_CMD_OP(cmd, 0, 0, 32, uint32_t, status);\ + MC_CMD_OP(cmd, 0, 32, 8, uint8_t, irq_index);\ +} while (0) + +/* cmd, param, offset, width, type, arg_name */ +#define DPDMUX_RSP_GET_IRQ_STATUS(cmd, status) \ + MC_RSP_OP(cmd, 0, 0, 32, uint32_t, status) \ + +/* cmd, param, offset, width, type, arg_name */ +#define DPDMUX_CMD_CLEAR_IRQ_STATUS(cmd, irq_index, status) \ +do { \ + MC_CMD_OP(cmd, 0, 0, 32, uint32_t, status); \ + MC_CMD_OP(cmd, 0, 32, 8, uint8_t, irq_index); \ +} while (0) + +#define DPDMUX_RSP_GET_ATTR(cmd, attr) \ +do { \ + MC_RSP_OP(cmd, 0, 0, 8, enum dpdmux_method, attr->method);\ + MC_RSP_OP(cmd, 0, 8, 8, enum dpdmux_manip, attr->manip);\ + MC_RSP_OP(cmd, 0, 16, 16, uint16_t, attr->num_ifs);\ + MC_RSP_OP(cmd, 0, 32, 16, uint16_t, attr->mem_size);\ + MC_RSP_OP(cmd, 2, 0, 32, int, attr->id);\ + MC_RSP_OP(cmd, 3, 0, 64, uint64_t, attr->options);\ + MC_RSP_OP(cmd, 4, 0, 16, uint16_t, attr->version.major);\ + MC_RSP_OP(cmd, 4, 16, 16, uint16_t, attr->version.minor);\ +} while (0) + +/* cmd, param, offset, width, type, arg_name */ +#define DPDMUX_CMD_UL_SET_MAX_FRAME_LENGTH(cmd, max_frame_length) \ + MC_CMD_OP(cmd, 0, 0, 16, uint16_t, max_frame_length) + +/* cmd, param, offset, width, type, arg_name */ +#define DPDMUX_CMD_IF_SET_ACCEPTED_FRAMES(cmd, if_id, cfg) \ +do { \ + MC_CMD_OP(cmd, 0, 0, 16, uint16_t, if_id);\ + MC_CMD_OP(cmd, 0, 16, 4, enum dpdmux_accepted_frames_type, cfg->type);\ + MC_CMD_OP(cmd, 0, 20, 4, enum dpdmux_unaccepted_frames_action, \ + cfg->unaccept_act);\ +} while (0) + +/* cmd, param, offset, width, type, arg_name */ +#define DPDMUX_CMD_IF_GET_ATTR(cmd, if_id) \ + MC_CMD_OP(cmd, 0, 0, 16, uint16_t, if_id) + +/* cmd, param, offset, width, type, arg_name */ +#define DPDMUX_RSP_IF_GET_ATTR(cmd, attr) \ +do { \ + MC_RSP_OP(cmd, 0, 56, 4, enum dpdmux_accepted_frames_type, \ + attr->accept_frame_type);\ + MC_RSP_OP(cmd, 0, 24, 1, int, attr->enabled);\ + MC_RSP_OP(cmd, 1, 0, 32, uint32_t, attr->rate);\ +} while (0) + +#define DPDMUX_CMD_IF_REMOVE_L2_RULE(cmd, if_id, l2_rule) \ +do { \ + MC_CMD_OP(cmd, 0, 0, 16, uint16_t, if_id);\ + MC_CMD_OP(cmd, 0, 16, 8, uint8_t, l2_rule->mac_addr[5]);\ + MC_CMD_OP(cmd, 0, 24, 8, uint8_t, l2_rule->mac_addr[4]);\ + MC_CMD_OP(cmd, 0, 32, 8, uint8_t, l2_rule->mac_addr[3]);\ + MC_CMD_OP(cmd, 0, 40, 8, uint8_t, l2_rule->mac_addr[2]);\ + MC_CMD_OP(cmd, 0, 48, 8, uint8_t, l2_rule->mac_addr[1]);\ + MC_CMD_OP(cmd, 0, 56, 8, uint8_t, l2_rule->mac_addr[0]);\ + MC_CMD_OP(cmd, 1, 32, 16, uint16_t, l2_rule->vlan_id);\ +} while (0) + +#define DPDMUX_CMD_IF_ADD_L2_RULE(cmd, if_id, l2_rule) \ +do { \ + MC_CMD_OP(cmd, 0, 0, 16, uint16_t, if_id);\ + MC_CMD_OP(cmd, 0, 16, 8, uint8_t, l2_rule->mac_addr[5]);\ + MC_CMD_OP(cmd, 0, 24, 8, uint8_t, l2_rule->mac_addr[4]);\ + MC_CMD_OP(cmd, 0, 32, 8, uint8_t, l2_rule->mac_addr[3]);\ + MC_CMD_OP(cmd, 0, 40, 8, uint8_t, l2_rule->mac_addr[2]);\ + MC_CMD_OP(cmd, 0, 48, 8, uint8_t, l2_rule->mac_addr[1]);\ + MC_CMD_OP(cmd, 0, 56, 8, uint8_t, l2_rule->mac_addr[0]);\ + MC_CMD_OP(cmd, 1, 32, 16, uint16_t, l2_rule->vlan_id);\ +} while (0) + +/* cmd, param, offset, width, type, arg_name */ +#define DPDMUX_CMD_IF_GET_COUNTER(cmd, if_id, counter_type) \ +do { \ + MC_CMD_OP(cmd, 0, 0, 16, uint16_t, if_id);\ + MC_CMD_OP(cmd, 0, 16, 8, enum dpdmux_counter_type, counter_type);\ +} while (0) + +/* cmd, param, offset, width, type, arg_name */ +#define DPDMUX_RSP_IF_GET_COUNTER(cmd, counter) \ + MC_RSP_OP(cmd, 1, 0, 64, uint64_t, counter) + +/* cmd, param, offset, width, type, arg_name */ +#define DPDMUX_CMD_IF_SET_LINK_CFG(cmd, if_id, cfg) \ +do { \ + MC_CMD_OP(cmd, 0, 0, 16, uint16_t, if_id);\ + MC_CMD_OP(cmd, 1, 0, 32, uint32_t, cfg->rate);\ + MC_CMD_OP(cmd, 2, 0, 64, uint64_t, cfg->options);\ +} while (0) + +/* cmd, param, offset, width, type, arg_name */ +#define DPDMUX_CMD_IF_GET_LINK_STATE(cmd, if_id) \ + MC_CMD_OP(cmd, 0, 0, 16, uint16_t, if_id) + +/* cmd, param, offset, width, type, arg_name */ +#define DPDMUX_RSP_IF_GET_LINK_STATE(cmd, state) \ +do { \ + MC_RSP_OP(cmd, 0, 32, 1, int, state->up);\ + MC_RSP_OP(cmd, 1, 0, 32, uint32_t, state->rate);\ + MC_RSP_OP(cmd, 2, 0, 64, uint64_t, state->options);\ +} while (0) + +#endif /* _FSL_DPDMUX_CMD_H */ --- /dev/null +++ b/drivers/staging/fsl-dpaa2/evb/dpdmux.c @@ -0,0 +1,567 @@ +/* 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. + */ +#include "../../fsl-mc/include/mc-sys.h" +#include "../../fsl-mc/include/mc-cmd.h" +#include "dpdmux.h" +#include "dpdmux-cmd.h" + +int dpdmux_open(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + int dpdmux_id, + uint16_t *token) +{ + struct mc_command cmd = { 0 }; + int err; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_OPEN, + cmd_flags, + 0); + DPDMUX_CMD_OPEN(cmd, dpdmux_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.header); + + return 0; +} + +int dpdmux_close(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token) +{ + struct mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_CLOSE, + cmd_flags, + token); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +int dpdmux_create(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + const struct dpdmux_cfg *cfg, + uint16_t *token) +{ + struct mc_command cmd = { 0 }; + int err; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_CREATE, + cmd_flags, + 0); + DPDMUX_CMD_CREATE(cmd, cfg); + + /* 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.header); + + return 0; +} + +int dpdmux_destroy(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token) +{ + struct mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_DESTROY, + cmd_flags, + token); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +int dpdmux_enable(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token) +{ + struct mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_ENABLE, + cmd_flags, + token); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +int dpdmux_disable(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token) +{ + struct mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_DISABLE, + cmd_flags, + token); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +int dpdmux_is_enabled(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + int *en) +{ + struct mc_command cmd = { 0 }; + int err; + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_IS_ENABLED, + cmd_flags, + token); + + /* send command to mc*/ + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + /* retrieve response parameters */ + DPDMUX_RSP_IS_ENABLED(cmd, *en); + + return 0; +} + +int dpdmux_reset(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token) +{ + struct mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_RESET, + cmd_flags, + token); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +int dpdmux_set_irq(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + uint8_t irq_index, + struct dpdmux_irq_cfg *irq_cfg) +{ + struct mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_SET_IRQ, + cmd_flags, + token); + DPDMUX_CMD_SET_IRQ(cmd, irq_index, irq_cfg); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +int dpdmux_get_irq(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + uint8_t irq_index, + int *type, + struct dpdmux_irq_cfg *irq_cfg) +{ + struct mc_command cmd = { 0 }; + int err; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_GET_IRQ, + cmd_flags, + token); + DPDMUX_CMD_GET_IRQ(cmd, irq_index); + + /* send command to mc*/ + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + /* retrieve response parameters */ + DPDMUX_RSP_GET_IRQ(cmd, *type, irq_cfg); + + return 0; +} + +int dpdmux_set_irq_enable(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + uint8_t irq_index, + uint8_t en) +{ + struct mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_SET_IRQ_ENABLE, + cmd_flags, + token); + DPDMUX_CMD_SET_IRQ_ENABLE(cmd, irq_index, en); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +int dpdmux_get_irq_enable(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + uint8_t irq_index, + uint8_t *en) +{ + struct mc_command cmd = { 0 }; + int err; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_GET_IRQ_ENABLE, + cmd_flags, + token); + DPDMUX_CMD_GET_IRQ_ENABLE(cmd, irq_index); + + /* send command to mc*/ + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + /* retrieve response parameters */ + DPDMUX_RSP_GET_IRQ_ENABLE(cmd, *en); + + return 0; +} + +int dpdmux_set_irq_mask(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + uint8_t irq_index, + uint32_t mask) +{ + struct mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_SET_IRQ_MASK, + cmd_flags, + token); + DPDMUX_CMD_SET_IRQ_MASK(cmd, irq_index, mask); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +int dpdmux_get_irq_mask(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + uint8_t irq_index, + uint32_t *mask) +{ + struct mc_command cmd = { 0 }; + int err; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_GET_IRQ_MASK, + cmd_flags, + token); + DPDMUX_CMD_GET_IRQ_MASK(cmd, irq_index); + + /* send command to mc*/ + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + /* retrieve response parameters */ + DPDMUX_RSP_GET_IRQ_MASK(cmd, *mask); + + return 0; +} + +int dpdmux_get_irq_status(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + uint8_t irq_index, + uint32_t *status) +{ + struct mc_command cmd = { 0 }; + int err; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_GET_IRQ_STATUS, + cmd_flags, + token); + DPDMUX_CMD_GET_IRQ_STATUS(cmd, irq_index, *status); + + /* send command to mc*/ + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + /* retrieve response parameters */ + DPDMUX_RSP_GET_IRQ_STATUS(cmd, *status); + + return 0; +} + +int dpdmux_clear_irq_status(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + uint8_t irq_index, + uint32_t status) +{ + struct mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_CLEAR_IRQ_STATUS, + cmd_flags, + token); + DPDMUX_CMD_CLEAR_IRQ_STATUS(cmd, irq_index, status); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +int dpdmux_get_attributes(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + struct dpdmux_attr *attr) +{ + struct mc_command cmd = { 0 }; + int err; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_GET_ATTR, + cmd_flags, + token); + + /* send command to mc*/ + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + /* retrieve response parameters */ + DPDMUX_RSP_GET_ATTR(cmd, attr); + + return 0; +} + +int dpdmux_ul_set_max_frame_length(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + uint16_t max_frame_length) +{ + struct mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_UL_SET_MAX_FRAME_LENGTH, + cmd_flags, + token); + DPDMUX_CMD_UL_SET_MAX_FRAME_LENGTH(cmd, max_frame_length); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +int dpdmux_ul_reset_counters(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token) +{ + struct mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_UL_RESET_COUNTERS, + cmd_flags, + token); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +int dpdmux_if_set_accepted_frames(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + uint16_t if_id, + const struct dpdmux_accepted_frames *cfg) +{ + struct mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_IF_SET_ACCEPTED_FRAMES, + cmd_flags, + token); + DPDMUX_CMD_IF_SET_ACCEPTED_FRAMES(cmd, if_id, cfg); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +int dpdmux_if_get_attributes(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + uint16_t if_id, + struct dpdmux_if_attr *attr) +{ + struct mc_command cmd = { 0 }; + int err; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_IF_GET_ATTR, + cmd_flags, + token); + DPDMUX_CMD_IF_GET_ATTR(cmd, if_id); + + /* send command to mc*/ + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + /* retrieve response parameters */ + DPDMUX_RSP_IF_GET_ATTR(cmd, attr); + + return 0; +} + +int dpdmux_if_remove_l2_rule(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + uint16_t if_id, + const struct dpdmux_l2_rule *rule) +{ + struct mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_IF_REMOVE_L2_RULE, + cmd_flags, + token); + DPDMUX_CMD_IF_REMOVE_L2_RULE(cmd, if_id, rule); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +int dpdmux_if_add_l2_rule(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + uint16_t if_id, + const struct dpdmux_l2_rule *rule) +{ + struct mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_IF_ADD_L2_RULE, + cmd_flags, + token); + DPDMUX_CMD_IF_ADD_L2_RULE(cmd, if_id, rule); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +int dpdmux_if_get_counter(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + uint16_t if_id, + enum dpdmux_counter_type counter_type, + uint64_t *counter) +{ + struct mc_command cmd = { 0 }; + int err; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_IF_GET_COUNTER, + cmd_flags, + token); + DPDMUX_CMD_IF_GET_COUNTER(cmd, if_id, counter_type); + + /* send command to mc*/ + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + /* retrieve response parameters */ + DPDMUX_RSP_IF_GET_COUNTER(cmd, *counter); + + return 0; +} + +int dpdmux_if_set_link_cfg(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + uint16_t if_id, + struct dpdmux_link_cfg *cfg) +{ + struct mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_IF_SET_LINK_CFG, + cmd_flags, + token); + DPDMUX_CMD_IF_SET_LINK_CFG(cmd, if_id, cfg); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +int dpdmux_if_get_link_state(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + uint16_t if_id, + struct dpdmux_link_state *state) +{ + struct mc_command cmd = { 0 }; + int err; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPDMUX_CMDID_IF_GET_LINK_STATE, + cmd_flags, + token); + DPDMUX_CMD_IF_GET_LINK_STATE(cmd, if_id); + + /* send command to mc*/ + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + /* retrieve response parameters */ + DPDMUX_RSP_IF_GET_LINK_STATE(cmd, state); + + return 0; +} --- /dev/null +++ b/drivers/staging/fsl-dpaa2/evb/dpdmux.h @@ -0,0 +1,724 @@ +/* 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_DPDMUX_H +#define __FSL_DPDMUX_H + +#include "../../fsl-mc/include/net.h" + +struct fsl_mc_io; + +/* Data Path Demux API + * Contains API for handling DPDMUX topology and functionality + */ + +/** + * dpdmux_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_' + * @dpdmux_id: DPDMUX 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 dpdmux_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 dpdmux_open(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + int dpdmux_id, + uint16_t *token); + +/** + * dpdmux_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 DPDMUX 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 dpdmux_close(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token); + +/** + * DPDMUX general options + */ + +/** + * Enable bridging between internal interfaces + */ +#define DPDMUX_OPT_BRIDGE_EN 0x0000000000000002ULL + +#define DPDMUX_IRQ_INDEX_IF 0x0000 +#define DPDMUX_IRQ_INDEX 0x0001 + +/** + * IRQ event - Indicates that the link state changed + */ +#define DPDMUX_IRQ_EVENT_LINK_CHANGED 0x0001 + +/** + * enum dpdmux_manip - DPDMUX manipulation operations + * @DPDMUX_MANIP_NONE: No manipulation on frames + * @DPDMUX_MANIP_ADD_REMOVE_S_VLAN: Add S-VLAN on egress, remove it on ingress + */ +enum dpdmux_manip { + DPDMUX_MANIP_NONE = 0x0, + DPDMUX_MANIP_ADD_REMOVE_S_VLAN = 0x1 +}; + +/** + * enum dpdmux_method - DPDMUX method options + * @DPDMUX_METHOD_NONE: no DPDMUX method + * @DPDMUX_METHOD_C_VLAN_MAC: DPDMUX based on C-VLAN and MAC address + * @DPDMUX_METHOD_MAC: DPDMUX based on MAC address + * @DPDMUX_METHOD_C_VLAN: DPDMUX based on C-VLAN + * @DPDMUX_METHOD_S_VLAN: DPDMUX based on S-VLAN + */ +enum dpdmux_method { + DPDMUX_METHOD_NONE = 0x0, + DPDMUX_METHOD_C_VLAN_MAC = 0x1, + DPDMUX_METHOD_MAC = 0x2, + DPDMUX_METHOD_C_VLAN = 0x3, + DPDMUX_METHOD_S_VLAN = 0x4 +}; + +/** + * struct dpdmux_cfg - DPDMUX configuration parameters + * @method: Defines the operation method for the DPDMUX address table + * @manip: Required manipulation operation + * @num_ifs: Number of interfaces (excluding the uplink interface) + * @adv: Advanced parameters; default is all zeros; + * use this structure to change default settings + */ +struct dpdmux_cfg { + enum dpdmux_method method; + enum dpdmux_manip manip; + uint16_t num_ifs; + /** + * struct adv - Advanced parameters + * @options: DPDMUX options - combination of 'DPDMUX_OPT_' flags + * @max_dmat_entries: Maximum entries in DPDMUX address table + * 0 - indicates default: 64 entries per interface. + * @max_mc_groups: Number of multicast groups in DPDMUX table + * 0 - indicates default: 32 multicast groups + * @max_vlan_ids: max vlan ids allowed in the system - + * relevant only case of working in mac+vlan method. + * 0 - indicates default 16 vlan ids. + */ + struct { + uint64_t options; + uint16_t max_dmat_entries; + uint16_t max_mc_groups; + uint16_t max_vlan_ids; + } adv; +}; + +/** + * dpdmux_create() - Create the DPDMUX 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 DPDMUX 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 dpdmux_open() function to get an authentication + * token first. + * + * Return: '0' on Success; Error code otherwise. + */ +int dpdmux_create(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + const struct dpdmux_cfg *cfg, + uint16_t *token); + +/** + * dpdmux_destroy() - Destroy the DPDMUX 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 DPDMUX object + * + * Return: '0' on Success; error code otherwise. + */ +int dpdmux_destroy(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token); + +/** + * dpdmux_enable() - Enable DPDMUX functionality + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPDMUX object + * + * Return: '0' on Success; Error code otherwise. + */ +int dpdmux_enable(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token); + +/** + * dpdmux_disable() - Disable DPDMUX functionality + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPDMUX object + * + * Return: '0' on Success; Error code otherwise. + */ +int dpdmux_disable(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token); + +/** + * dpdmux_is_enabled() - Check if the DPDMUX 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 DPDMUX object + * @en: Returns '1' if object is enabled; '0' otherwise + * + * Return: '0' on Success; Error code otherwise. + */ +int dpdmux_is_enabled(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + int *en); + +/** + * dpdmux_reset() - Reset the DPDMUX, 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 DPDMUX object + * + * Return: '0' on Success; Error code otherwise. + */ +int dpdmux_reset(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token); + +/** + * struct dpdmux_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 dpdmux_irq_cfg { + uint64_t addr; + uint32_t val; + int irq_num; +}; + +/** + * dpdmux_set_irq() - Set IRQ information for the DPDMUX 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 DPDMUX object + * @irq_index: Identifies the interrupt index to configure + * @irq_cfg: IRQ configuration + * + * Return: '0' on Success; Error code otherwise. + */ +int dpdmux_set_irq(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + uint8_t irq_index, + struct dpdmux_irq_cfg *irq_cfg); + +/** + * dpdmux_get_irq() - Get IRQ information from the DPDMUX. + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPDMUX 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 dpdmux_get_irq(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + uint8_t irq_index, + int *type, + struct dpdmux_irq_cfg *irq_cfg); + +/** + * dpdmux_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 DPDMUX 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 dpdmux_set_irq_enable(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + uint8_t irq_index, + uint8_t en); + +/** + * dpdmux_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 DPDMUX object + * @irq_index: The interrupt index to configure + * @en: Returned interrupt state - enable = 1, disable = 0 + * + * Return: '0' on Success; Error code otherwise. + */ +int dpdmux_get_irq_enable(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + uint8_t irq_index, + uint8_t *en); + +/** + * dpdmux_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 DPDMUX 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 dpdmux_set_irq_mask(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + uint8_t irq_index, + uint32_t mask); + +/** + * dpdmux_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 DPDMUX 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 dpdmux_get_irq_mask(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + uint8_t irq_index, + uint32_t *mask); + +/** + * dpdmux_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 DPDMUX 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 dpdmux_get_irq_status(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + uint8_t irq_index, + uint32_t *status); + +/** + * dpdmux_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 DPDMUX 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 dpdmux_clear_irq_status(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + uint8_t irq_index, + uint32_t status); + +/** + * struct dpdmux_attr - Structure representing DPDMUX attributes + * @id: DPDMUX object ID + * @version: DPDMUX version + * @options: Configuration options (bitmap) + * @method: DPDMUX address table method + * @manip: DPDMUX manipulation type + * @num_ifs: Number of interfaces (excluding the uplink interface) + * @mem_size: DPDMUX frame storage memory size + */ +struct dpdmux_attr { + int id; + /** + * struct version - DPDMUX version + * @major: DPDMUX major version + * @minor: DPDMUX minor version + */ + struct { + uint16_t major; + uint16_t minor; + } version; + uint64_t options; + enum dpdmux_method method; + enum dpdmux_manip manip; + uint16_t num_ifs; + uint16_t mem_size; +}; + +/** + * dpdmux_get_attributes() - Retrieve DPDMUX 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 DPDMUX object + * @attr: Returned object's attributes + * + * Return: '0' on Success; Error code otherwise. + */ +int dpdmux_get_attributes(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + struct dpdmux_attr *attr); + +/** + * dpdmux_ul_set_max_frame_length() - Set the maximum frame length in DPDMUX + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPDMUX object + * @max_frame_length: The required maximum frame length + * + * Return: '0' on Success; Error code otherwise. + */ +int dpdmux_ul_set_max_frame_length(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + uint16_t max_frame_length); + +/** + * enum dpdmux_counter_type - Counter types + * @DPDMUX_CNT_ING_FRAME: Counts ingress frames + * @DPDMUX_CNT_ING_BYTE: Counts ingress bytes + * @DPDMUX_CNT_ING_FLTR_FRAME: Counts filtered ingress frames + * @DPDMUX_CNT_ING_FRAME_DISCARD: Counts discarded ingress frames + * @DPDMUX_CNT_ING_MCAST_FRAME: Counts ingress multicast frames + * @DPDMUX_CNT_ING_MCAST_BYTE: Counts ingress multicast bytes + * @DPDMUX_CNT_ING_BCAST_FRAME: Counts ingress broadcast frames + * @DPDMUX_CNT_ING_BCAST_BYTES: Counts ingress broadcast bytes + * @DPDMUX_CNT_EGR_FRAME: Counts egress frames + * @DPDMUX_CNT_EGR_BYTE: Counts egress bytes + * @DPDMUX_CNT_EGR_FRAME_DISCARD: Counts discarded egress frames + */ +enum dpdmux_counter_type { + DPDMUX_CNT_ING_FRAME = 0x0, + DPDMUX_CNT_ING_BYTE = 0x1, + DPDMUX_CNT_ING_FLTR_FRAME = 0x2, + DPDMUX_CNT_ING_FRAME_DISCARD = 0x3, + DPDMUX_CNT_ING_MCAST_FRAME = 0x4, + DPDMUX_CNT_ING_MCAST_BYTE = 0x5, + DPDMUX_CNT_ING_BCAST_FRAME = 0x6, + DPDMUX_CNT_ING_BCAST_BYTES = 0x7, + DPDMUX_CNT_EGR_FRAME = 0x8, + DPDMUX_CNT_EGR_BYTE = 0x9, + DPDMUX_CNT_EGR_FRAME_DISCARD = 0xa +}; + +/** + * enum dpdmux_accepted_frames_type - DPDMUX frame types + * @DPDMUX_ADMIT_ALL: The device accepts VLAN tagged, untagged and + * priority-tagged frames + * @DPDMUX_ADMIT_ONLY_VLAN_TAGGED: The device discards untagged frames or + * priority-tagged frames that are received on this + * interface + * @DPDMUX_ADMIT_ONLY_UNTAGGED: Untagged frames or priority-tagged frames + * received on this interface are accepted + */ +enum dpdmux_accepted_frames_type { + DPDMUX_ADMIT_ALL = 0, + DPDMUX_ADMIT_ONLY_VLAN_TAGGED = 1, + DPDMUX_ADMIT_ONLY_UNTAGGED = 2 +}; + +/** + * enum dpdmux_action - DPDMUX action for un-accepted frames + * @DPDMUX_ACTION_DROP: Drop un-accepted frames + * @DPDMUX_ACTION_REDIRECT_TO_CTRL: Redirect un-accepted frames to the + * control interface + */ +enum dpdmux_action { + DPDMUX_ACTION_DROP = 0, + DPDMUX_ACTION_REDIRECT_TO_CTRL = 1 +}; + +/** + * struct dpdmux_accepted_frames - Frame types configuration + * @type: Defines ingress accepted frames + * @unaccept_act: Defines action on frames not accepted + */ +struct dpdmux_accepted_frames { + enum dpdmux_accepted_frames_type type; + enum dpdmux_action unaccept_act; +}; + +/** + * dpdmux_if_set_accepted_frames() - Set the accepted frame types + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPDMUX object + * @if_id: Interface ID (0 for uplink, or 1-num_ifs); + * @cfg: Frame types configuration + * + * if 'DPDMUX_ADMIT_ONLY_VLAN_TAGGED' is set - untagged frames or + * priority-tagged frames are discarded. + * if 'DPDMUX_ADMIT_ONLY_UNTAGGED' is set - untagged frames or + * priority-tagged frames are accepted. + * if 'DPDMUX_ADMIT_ALL' is set (default mode) - all VLAN tagged, + * untagged and priority-tagged frame are accepted; + * + * Return: '0' on Success; Error code otherwise. + */ +int dpdmux_if_set_accepted_frames(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + uint16_t if_id, + const struct dpdmux_accepted_frames *cfg); + +/** + * struct dpdmux_if_attr - Structure representing frame types configuration + * @rate: Configured interface rate (in bits per second) + * @enabled: Indicates if interface is enabled + * @accept_frame_type: Indicates type of accepted frames for the interface + */ +struct dpdmux_if_attr { + uint32_t rate; + int enabled; + enum dpdmux_accepted_frames_type accept_frame_type; +}; + +/** + * dpdmux_if_get_attributes() - Obtain DPDMUX interface 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 DPDMUX object + * @if_id: Interface ID (0 for uplink, or 1-num_ifs); + * @attr: Interface attributes + * + * Return: '0' on Success; Error code otherwise. + */ +int dpdmux_if_get_attributes(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + uint16_t if_id, + struct dpdmux_if_attr *attr); + +/** + * struct dpdmux_l2_rule - Structure representing L2 rule + * @mac_addr: MAC address + * @vlan_id: VLAN ID + */ +struct dpdmux_l2_rule { + uint8_t mac_addr[6]; + uint16_t vlan_id; +}; + +/** + * dpdmux_if_remove_l2_rule() - Remove L2 rule from DPDMUX table + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPDMUX object + * @if_id: Destination interface ID + * @rule: L2 rule + * + * Function removes a L2 rule from DPDMUX table + * or adds an interface to an existing multicast address + * + * Return: '0' on Success; Error code otherwise. + */ +int dpdmux_if_remove_l2_rule(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + uint16_t if_id, + const struct dpdmux_l2_rule *rule); + +/** + * dpdmux_if_add_l2_rule() - Add L2 rule into DPDMUX table + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPDMUX object + * @if_id: Destination interface ID + * @rule: L2 rule + * + * Function adds a L2 rule into DPDMUX table + * or adds an interface to an existing multicast address + * + * Return: '0' on Success; Error code otherwise. + */ +int dpdmux_if_add_l2_rule(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + uint16_t if_id, + const struct dpdmux_l2_rule *rule); + +/** +* dpdmux_if_get_counter() - Functions obtains specific counter of an interface +* @mc_io: Pointer to MC portal's I/O object +* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' +* @token: Token of DPDMUX object +* @if_id: Interface Id +* @counter_type: counter type +* @counter: Returned specific counter information +* +* Return: '0' on Success; Error code otherwise. +*/ +int dpdmux_if_get_counter(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + uint16_t if_id, + enum dpdmux_counter_type counter_type, + uint64_t *counter); + +/** +* dpdmux_ul_reset_counters() - Function resets the uplink counter +* @mc_io: Pointer to MC portal's I/O object +* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' +* @token: Token of DPDMUX object +* +* Return: '0' on Success; Error code otherwise. +*/ +int dpdmux_ul_reset_counters(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token); + +/** + * Enable auto-negotiation + */ +#define DPDMUX_LINK_OPT_AUTONEG 0x0000000000000001ULL +/** + * Enable half-duplex mode + */ +#define DPDMUX_LINK_OPT_HALF_DUPLEX 0x0000000000000002ULL +/** + * Enable pause frames + */ +#define DPDMUX_LINK_OPT_PAUSE 0x0000000000000004ULL +/** + * Enable a-symmetric pause frames + */ +#define DPDMUX_LINK_OPT_ASYM_PAUSE 0x0000000000000008ULL + +/** + * struct dpdmux_link_cfg - Structure representing DPDMUX link configuration + * @rate: Rate + * @options: Mask of available options; use 'DPDMUX_LINK_OPT_' values + */ +struct dpdmux_link_cfg { + uint32_t rate; + uint64_t options; +}; + +/** + * dpdmux_if_set_link_cfg() - set the link 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 DPSW object + * @if_id: interface id + * @cfg: Link configuration + * + * Return: '0' on Success; Error code otherwise. + */ +int dpdmux_if_set_link_cfg(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + uint16_t if_id, + struct dpdmux_link_cfg *cfg); +/** + * struct dpdmux_link_state - Structure representing DPDMUX link state + * @rate: Rate + * @options: Mask of available options; use 'DPDMUX_LINK_OPT_' values + * @up: 0 - down, 1 - up + */ +struct dpdmux_link_state { + uint32_t rate; + uint64_t options; + int up; +}; + +/** + * dpdmux_if_get_link_state - Return the link 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 DPSW object + * @if_id: interface id + * @state: link state + * + * @returns '0' on Success; Error code otherwise. + */ +int dpdmux_if_get_link_state(struct fsl_mc_io *mc_io, + uint32_t cmd_flags, + uint16_t token, + uint16_t if_id, + struct dpdmux_link_state *state); + +#endif /* __FSL_DPDMUX_H */ --- /dev/null +++ b/drivers/staging/fsl-dpaa2/evb/evb.c @@ -0,0 +1,1216 @@ +/* Copyright 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 +#include +#include +#include +#include + +#include +#include + +#include "../../fsl-mc/include/mc.h" + +#include "dpdmux.h" +#include "dpdmux-cmd.h" + +/* IRQ index */ +#define DPDMUX_MAX_IRQ_NUM 2 + +/* MAX FRAME LENGTH (currently 10k) */ +#define EVB_MAX_FRAME_LENGTH (10 * 1024) +/* MIN FRAME LENGTH (64 bytes + 4 bytes CRC) */ +#define EVB_MIN_FRAME_LENGTH 68 + +struct evb_port_priv { + struct net_device *netdev; + struct list_head list; + u16 port_index; + struct evb_priv *evb_priv; + u8 vlans[VLAN_VID_MASK+1]; +}; + +struct evb_priv { + /* keep first */ + struct evb_port_priv uplink; + + struct fsl_mc_io *mc_io; + struct list_head port_list; + struct dpdmux_attr attr; + uint16_t mux_handle; + int dev_id; +}; + +static int _evb_port_carrier_state_sync(struct net_device *netdev) +{ + struct evb_port_priv *port_priv = netdev_priv(netdev); + struct dpdmux_link_state state; + int err; + + err = dpdmux_if_get_link_state(port_priv->evb_priv->mc_io, 0, + port_priv->evb_priv->mux_handle, + port_priv->port_index, &state); + if (unlikely(err)) { + netdev_err(netdev, "dpdmux_if_get_link_state() err %d\n", err); + return err; + } + + WARN_ONCE(state.up > 1, "Garbage read into link_state"); + + if (state.up) + netif_carrier_on(port_priv->netdev); + else + netif_carrier_off(port_priv->netdev); + + return 0; +} + +static int evb_port_open(struct net_device *netdev) +{ + int err; + + /* FIXME: enable port when support added */ + + err = _evb_port_carrier_state_sync(netdev); + if (err) { + netdev_err(netdev, "ethsw_port_carrier_state_sync err %d\n", + err); + return err; + } + + return 0; +} + +static netdev_tx_t evb_dropframe(struct sk_buff *skb, struct net_device *dev) +{ + /* we don't support I/O for now, drop the frame */ + dev_kfree_skb_any(skb); + return NETDEV_TX_OK; +} + +static int evb_links_state_update(struct evb_priv *priv) +{ + struct evb_port_priv *port_priv; + struct list_head *pos; + int err; + + list_for_each(pos, &priv->port_list) { + port_priv = list_entry(pos, struct evb_port_priv, list); + + err = _evb_port_carrier_state_sync(port_priv->netdev); + if (err) + netdev_err(port_priv->netdev, + "_evb_port_carrier_state_sync err %d\n", + err); + } + + return 0; +} + +static irqreturn_t evb_irq0_handler(int irq_num, void *arg) +{ + return IRQ_WAKE_THREAD; +} + +static irqreturn_t _evb_irq0_handler_thread(int irq_num, void *arg) +{ + struct device *dev = (struct device *)arg; + struct fsl_mc_device *evb_dev = to_fsl_mc_device(dev); + struct net_device *netdev = dev_get_drvdata(dev); + struct evb_priv *priv = netdev_priv(netdev); + struct fsl_mc_io *io = priv->mc_io; + uint16_t token = priv->mux_handle; + int irq_index = DPDMUX_IRQ_INDEX_IF; + uint32_t status = 0, clear = 0; + int err; + + /* Sanity check */ + if (WARN_ON(!evb_dev || !evb_dev->irqs || !evb_dev->irqs[irq_index])) + goto out; + if (WARN_ON(evb_dev->irqs[irq_index]->msi_desc->irq != irq_num)) + goto out; + + err = dpdmux_get_irq_status(io, 0, token, irq_index, &status); + if (unlikely(err)) { + netdev_err(netdev, "Can't get irq status (err %d)", err); + clear = 0xffffffff; + goto out; + } + + /* FIXME clear irq status */ + + if (status & DPDMUX_IRQ_EVENT_LINK_CHANGED) { + clear |= DPDMUX_IRQ_EVENT_LINK_CHANGED; + + err = evb_links_state_update(priv); + if (unlikely(err)) + goto out; + } +out: + err = dpdmux_clear_irq_status(io, 0, token, irq_index, clear); + if (unlikely(err)) + netdev_err(netdev, "Can't clear irq status (err %d)", err); + return IRQ_HANDLED; +} + +static int evb_setup_irqs(struct fsl_mc_device *evb_dev) +{ + struct device *dev = &evb_dev->dev; + struct net_device *netdev = dev_get_drvdata(dev); + struct evb_priv *priv = netdev_priv(netdev); + int err = 0; + struct fsl_mc_device_irq *irq; + const int irq_index = DPDMUX_IRQ_INDEX_IF; + uint32_t mask = ~0x0u; /* FIXME: unmask handled irqs */ + + err = fsl_mc_allocate_irqs(evb_dev); + if (unlikely(err)) { + dev_err(dev, "MC irqs allocation failed\n"); + return err; + } + + if (WARN_ON(evb_dev->obj_desc.irq_count != DPDMUX_MAX_IRQ_NUM)) { + err = -EINVAL; + goto free_irq; + } + + err = dpdmux_set_irq_enable(priv->mc_io, 0, priv->mux_handle, + irq_index, 0); + if (unlikely(err)) { + dev_err(dev, "dpdmux_set_irq_enable err %d\n", err); + goto free_irq; + } + + irq = evb_dev->irqs[irq_index]; + + err = devm_request_threaded_irq(dev, irq->msi_desc->irq, + evb_irq0_handler, + _evb_irq0_handler_thread, + IRQF_NO_SUSPEND | IRQF_ONESHOT, + dev_name(dev), dev); + if (unlikely(err)) { + dev_err(dev, "devm_request_threaded_irq(): %d", err); + goto free_irq; + } + + err = dpdmux_set_irq_mask(priv->mc_io, 0, priv->mux_handle, + irq_index, mask); + if (unlikely(err)) { + dev_err(dev, "dpdmux_set_irq_mask(): %d", err); + goto free_devm_irq; + } + + err = dpdmux_set_irq_enable(priv->mc_io, 0, priv->mux_handle, + irq_index, 1); + if (unlikely(err)) { + dev_err(dev, "dpdmux_set_irq_enable(): %d", err); + goto free_devm_irq; + } + + return 0; + +free_devm_irq: + devm_free_irq(dev, irq->msi_desc->irq, dev); +free_irq: + fsl_mc_free_irqs(evb_dev); + return err; +} + +static void evb_teardown_irqs(struct fsl_mc_device *evb_dev) +{ + struct device *dev = &evb_dev->dev; + struct net_device *netdev = dev_get_drvdata(dev); + struct evb_priv *priv = netdev_priv(netdev); + + dpdmux_set_irq_enable(priv->mc_io, 0, priv->mux_handle, + DPDMUX_IRQ_INDEX_IF, 0); + + devm_free_irq(dev, + evb_dev->irqs[DPDMUX_IRQ_INDEX_IF]->msi_desc->irq, + dev); + fsl_mc_free_irqs(evb_dev); +} + +static int evb_port_add_rule(struct net_device *netdev, + const unsigned char *addr, u16 vid) +{ + struct evb_port_priv *port_priv = netdev_priv(netdev); + struct dpdmux_l2_rule rule = { .vlan_id = vid }; + int err; + + if (addr) + ether_addr_copy(rule.mac_addr, addr); + + err = dpdmux_if_add_l2_rule(port_priv->evb_priv->mc_io, + 0, + port_priv->evb_priv->mux_handle, + port_priv->port_index, &rule); + if (unlikely(err)) + netdev_err(netdev, "dpdmux_if_add_l2_rule err %d\n", err); + return err; +} + +static int evb_port_del_rule(struct net_device *netdev, + const unsigned char *addr, u16 vid) +{ + struct evb_port_priv *port_priv = netdev_priv(netdev); + struct dpdmux_l2_rule rule = { .vlan_id = vid }; + int err; + + if (addr) + ether_addr_copy(rule.mac_addr, addr); + + err = dpdmux_if_remove_l2_rule(port_priv->evb_priv->mc_io, + 0, + port_priv->evb_priv->mux_handle, + port_priv->port_index, &rule); + if (unlikely(err)) + netdev_err(netdev, "dpdmux_if_remove_l2_rule err %d\n", err); + return err; +} + +static bool _lookup_address(struct net_device *netdev, + const unsigned char *addr) +{ + struct netdev_hw_addr *ha; + struct netdev_hw_addr_list *list = (is_unicast_ether_addr(addr)) ? + &netdev->uc : &netdev->mc; + + netif_addr_lock_bh(netdev); + list_for_each_entry(ha, &list->list, list) { + if (ether_addr_equal(ha->addr, addr)) { + netif_addr_unlock_bh(netdev); + return true; + } + } + netif_addr_unlock_bh(netdev); + return false; +} + +static inline int evb_port_fdb_prep(struct nlattr *tb[], + struct net_device *netdev, + const unsigned char *addr, u16 *vid, + bool del) +{ + struct evb_port_priv *port_priv = netdev_priv(netdev); + struct evb_priv *evb_priv = port_priv->evb_priv; + + *vid = 0; + + if (evb_priv->attr.method != DPDMUX_METHOD_MAC && + evb_priv->attr.method != DPDMUX_METHOD_C_VLAN_MAC) { + netdev_err(netdev, + "EVB mode does not support MAC classification\n"); + return -EOPNOTSUPP; + } + + /* check if the address is configured on this port */ + if (_lookup_address(netdev, addr)) { + if (!del) + return -EEXIST; + } else { + if (del) + return -ENOENT; + } + + if (tb[NDA_VLAN] && evb_priv->attr.method == DPDMUX_METHOD_C_VLAN_MAC) { + if (nla_len(tb[NDA_VLAN]) != sizeof(unsigned short)) { + netdev_err(netdev, "invalid vlan size %d\n", + nla_len(tb[NDA_VLAN])); + return -EINVAL; + } + + *vid = nla_get_u16(tb[NDA_VLAN]); + + if (!*vid || *vid >= VLAN_VID_MASK) { + netdev_err(netdev, "invalid vid value 0x%04x\n", *vid); + return -EINVAL; + } + } else if (evb_priv->attr.method == DPDMUX_METHOD_C_VLAN_MAC) { + netdev_err(netdev, + "EVB mode requires explicit VLAN configuration\n"); + return -EINVAL; + } else if (tb[NDA_VLAN]) { + netdev_warn(netdev, "VLAN not supported, argument ignored\n"); + } + + return 0; +} + +static int evb_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], + struct net_device *netdev, + const unsigned char *addr, u16 vid, u16 flags) +{ + u16 _vid; + int err; + + /* TODO: add replace support when added to iproute bridge */ + if (!(flags & NLM_F_REQUEST)) { + netdev_err(netdev, + "evb_port_fdb_add unexpected flags value %08x\n", + flags); + return -EINVAL; + } + + err = evb_port_fdb_prep(tb, netdev, addr, &_vid, 0); + if (unlikely(err)) + return err; + + + err = evb_port_add_rule(netdev, addr, _vid); + if (unlikely(err)) + return err; + + if (is_unicast_ether_addr(addr)) { + err = dev_uc_add(netdev, addr); + if (unlikely(err)) { + netdev_err(netdev, "dev_uc_add err %d\n", err); + return err; + } + } else { + err = dev_mc_add(netdev, addr); + if (unlikely(err)) { + netdev_err(netdev, "dev_mc_add err %d\n", err); + return err; + } + } + + return 0; +} + +static int evb_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[], + struct net_device *netdev, + const unsigned char *addr, u16 vid) +{ + u16 _vid; + int err; + + err = evb_port_fdb_prep(tb, netdev, addr, &_vid, 1); + if (unlikely(err)) + return err; + + err = evb_port_del_rule(netdev, addr, _vid); + if (unlikely(err)) + return err; + + if (is_unicast_ether_addr(addr)) { + err = dev_uc_del(netdev, addr); + if (unlikely(err)) { + netdev_err(netdev, "dev_uc_del err %d\n", err); + return err; + } + } else { + err = dev_mc_del(netdev, addr); + if (unlikely(err)) { + netdev_err(netdev, "dev_mc_del err %d\n", err); + return err; + } + } + + return 0; +} + +static int evb_change_mtu(struct net_device *netdev, + int mtu) +{ + struct evb_port_priv *port_priv = netdev_priv(netdev); + struct evb_priv *evb_priv = port_priv->evb_priv; + struct list_head *pos; + int err = 0; + + /* This operation is not permitted on downlinks */ + if (port_priv->port_index > 0) + return -EPERM; + + if (mtu < EVB_MIN_FRAME_LENGTH || mtu > EVB_MAX_FRAME_LENGTH) { + netdev_err(netdev, "Invalid MTU %d. Valid range is: %d..%d\n", + mtu, EVB_MIN_FRAME_LENGTH, EVB_MAX_FRAME_LENGTH); + return -EINVAL; + } + + err = dpdmux_ul_set_max_frame_length(evb_priv->mc_io, + 0, + evb_priv->mux_handle, + (uint16_t)mtu); + + if (unlikely(err)) { + netdev_err(netdev, "dpdmux_ul_set_max_frame_length err %d\n", + err); + return err; + } + + /* Update the max frame length for downlinks */ + list_for_each(pos, &evb_priv->port_list) { + port_priv = list_entry(pos, struct evb_port_priv, list); + port_priv->netdev->mtu = mtu; + } + + netdev->mtu = mtu; + return 0; +} + +static const struct nla_policy ifla_br_policy[IFLA_MAX+1] = { + [IFLA_BRIDGE_FLAGS] = { .type = NLA_U16 }, + [IFLA_BRIDGE_MODE] = { .type = NLA_U16 }, + [IFLA_BRIDGE_VLAN_INFO] = { .type = NLA_BINARY, + .len = sizeof(struct bridge_vlan_info), }, +}; + +static int evb_setlink_af_spec(struct net_device *netdev, + struct nlattr **tb) +{ + struct bridge_vlan_info *vinfo; + struct evb_port_priv *port_priv = netdev_priv(netdev); + int err = 0; + + if (!tb[IFLA_BRIDGE_VLAN_INFO]) { + netdev_err(netdev, "no VLAN INFO in nlmsg\n"); + return -EOPNOTSUPP; + } + + vinfo = nla_data(tb[IFLA_BRIDGE_VLAN_INFO]); + + if (!vinfo->vid || vinfo->vid > VLAN_VID_MASK) + return -EINVAL; + + err = evb_port_add_rule(netdev, NULL, vinfo->vid); + if (unlikely(err)) + return err; + + port_priv->vlans[vinfo->vid] = 1; + + return 0; +} + +static int evb_setlink(struct net_device *netdev, + struct nlmsghdr *nlh, + u16 flags) +{ + struct evb_port_priv *port_priv = netdev_priv(netdev); + struct evb_priv *evb_priv = port_priv->evb_priv; + struct nlattr *attr; + struct nlattr *tb[(IFLA_BRIDGE_MAX > IFLA_BRPORT_MAX) ? + IFLA_BRIDGE_MAX : IFLA_BRPORT_MAX+1]; + int err = 0; + + if (evb_priv->attr.method != DPDMUX_METHOD_C_VLAN && + evb_priv->attr.method != DPDMUX_METHOD_S_VLAN) { + netdev_err(netdev, + "EVB mode does not support VLAN only classification\n"); + return -EOPNOTSUPP; + } + + attr = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC); + if (attr) { + err = nla_parse_nested(tb, IFLA_BRIDGE_MAX, attr, + ifla_br_policy); + if (unlikely(err)) { + netdev_err(netdev, + "nla_parse_nested for br_policy err %d\n", + err); + return err; + } + + err = evb_setlink_af_spec(netdev, tb); + return err; + } + + netdev_err(netdev, "nlmsg_find_attr found no AF_SPEC\n"); + return -EOPNOTSUPP; +} + +static int __nla_put_netdev(struct sk_buff *skb, struct net_device *netdev) +{ + struct evb_port_priv *port_priv = netdev_priv(netdev); + struct evb_priv *evb_priv = port_priv->evb_priv; + u8 operstate = netif_running(netdev) ? + netdev->operstate : IF_OPER_DOWN; + int iflink; + int err; + + err = nla_put_string(skb, IFLA_IFNAME, netdev->name); + if (unlikely(err)) + goto nla_put_err; + err = nla_put_u32(skb, IFLA_MASTER, evb_priv->uplink.netdev->ifindex); + if (unlikely(err)) + goto nla_put_err; + err = nla_put_u32(skb, IFLA_MTU, netdev->mtu); + if (unlikely(err)) + goto nla_put_err; + err = nla_put_u8(skb, IFLA_OPERSTATE, operstate); + if (unlikely(err)) + goto nla_put_err; + if (netdev->addr_len) { + err = nla_put(skb, IFLA_ADDRESS, netdev->addr_len, + netdev->dev_addr); + if (unlikely(err)) + goto nla_put_err; + } + + iflink = dev_get_iflink(netdev); + if (netdev->ifindex != iflink) { + err = nla_put_u32(skb, IFLA_LINK, iflink); + if (unlikely(err)) + goto nla_put_err; + } + + return 0; + +nla_put_err: + netdev_err(netdev, "nla_put_ err %d\n", err); + return err; +} + +static int __nla_put_port(struct sk_buff *skb, struct net_device *netdev) +{ + struct nlattr *nest; + int err; + + nest = nla_nest_start(skb, IFLA_PROTINFO | NLA_F_NESTED); + if (!nest) { + netdev_err(netdev, "nla_nest_start failed\n"); + return -ENOMEM; + } + + err = nla_put_u8(skb, IFLA_BRPORT_STATE, BR_STATE_FORWARDING); + if (unlikely(err)) + goto nla_put_err; + err = nla_put_u16(skb, IFLA_BRPORT_PRIORITY, 0); + if (unlikely(err)) + goto nla_put_err; + err = nla_put_u32(skb, IFLA_BRPORT_COST, 0); + if (unlikely(err)) + goto nla_put_err; + err = nla_put_u8(skb, IFLA_BRPORT_MODE, 0); + if (unlikely(err)) + goto nla_put_err; + err = nla_put_u8(skb, IFLA_BRPORT_GUARD, 0); + if (unlikely(err)) + goto nla_put_err; + err = nla_put_u8(skb, IFLA_BRPORT_PROTECT, 0); + if (unlikely(err)) + goto nla_put_err; + err = nla_put_u8(skb, IFLA_BRPORT_FAST_LEAVE, 0); + if (unlikely(err)) + goto nla_put_err; + err = nla_put_u8(skb, IFLA_BRPORT_LEARNING, 0); + if (unlikely(err)) + goto nla_put_err; + err = nla_put_u8(skb, IFLA_BRPORT_UNICAST_FLOOD, 1); + if (unlikely(err)) + goto nla_put_err; + nla_nest_end(skb, nest); + + return 0; + +nla_put_err: + netdev_err(netdev, "nla_put_ err %d\n", err); + nla_nest_cancel(skb, nest); + return err; +} + +static int __nla_put_vlan(struct sk_buff *skb, struct net_device *netdev) +{ + struct evb_port_priv *port_priv = netdev_priv(netdev); + struct nlattr *nest; + struct bridge_vlan_info vinfo; + const u8 *vlans = port_priv->vlans; + u16 i; + int err; + + nest = nla_nest_start(skb, IFLA_AF_SPEC); + if (!nest) { + netdev_err(netdev, "nla_nest_start failed"); + return -ENOMEM; + } + + for (i = 0; i < VLAN_VID_MASK+1; i++) { + if (!vlans[i]) + continue; + + vinfo.flags = 0; + vinfo.vid = i; + + err = nla_put(skb, IFLA_BRIDGE_VLAN_INFO, + sizeof(vinfo), &vinfo); + if (unlikely(err)) + goto nla_put_err; + } + + nla_nest_end(skb, nest); + + return 0; + +nla_put_err: + netdev_err(netdev, "nla_put_ err %d\n", err); + nla_nest_cancel(skb, nest); + return err; +} + +static int evb_getlink(struct sk_buff *skb, u32 pid, u32 seq, + struct net_device *netdev, u32 filter_mask, int nlflags) +{ + struct evb_port_priv *port_priv = netdev_priv(netdev); + struct evb_priv *evb_priv = port_priv->evb_priv; + struct ifinfomsg *hdr; + struct nlmsghdr *nlh; + int err; + + if (evb_priv->attr.method != DPDMUX_METHOD_C_VLAN && + evb_priv->attr.method != DPDMUX_METHOD_S_VLAN) { + return 0; + } + + nlh = nlmsg_put(skb, pid, seq, RTM_NEWLINK, sizeof(*hdr), NLM_F_MULTI); + if (!nlh) + return -EMSGSIZE; + + hdr = nlmsg_data(nlh); + memset(hdr, 0, sizeof(*hdr)); + hdr->ifi_family = AF_BRIDGE; + hdr->ifi_type = netdev->type; + hdr->ifi_index = netdev->ifindex; + hdr->ifi_flags = dev_get_flags(netdev); + + err = __nla_put_netdev(skb, netdev); + if (unlikely(err)) + goto nla_put_err; + + err = __nla_put_port(skb, netdev); + if (unlikely(err)) + goto nla_put_err; + + /* Check if the VID information is requested */ + if (filter_mask & RTEXT_FILTER_BRVLAN) { + err = __nla_put_vlan(skb, netdev); + if (unlikely(err)) + goto nla_put_err; + } + + nlmsg_end(skb, nlh); + return skb->len; + +nla_put_err: + nlmsg_cancel(skb, nlh); + return -EMSGSIZE; +} + +static int evb_dellink(struct net_device *netdev, + struct nlmsghdr *nlh, + u16 flags) +{ + struct nlattr *tb[IFLA_BRIDGE_MAX+1]; + struct nlattr *spec; + struct bridge_vlan_info *vinfo; + struct evb_port_priv *port_priv = netdev_priv(netdev); + int err = 0; + + spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC); + if (!spec) + return 0; + + err = nla_parse_nested(tb, IFLA_BRIDGE_MAX, spec, ifla_br_policy); + if (unlikely(err)) + return err; + + if (!tb[IFLA_BRIDGE_VLAN_INFO]) + return -EOPNOTSUPP; + + vinfo = nla_data(tb[IFLA_BRIDGE_VLAN_INFO]); + + if (!vinfo->vid || vinfo->vid > VLAN_VID_MASK) + return -EINVAL; + + err = evb_port_del_rule(netdev, NULL, vinfo->vid); + if (unlikely(err)) { + netdev_err(netdev, "evb_port_del_rule err %d\n", err); + return err; + } + port_priv->vlans[vinfo->vid] = 0; + + return 0; +} + +static struct rtnl_link_stats64 * +evb_port_get_stats(struct net_device *netdev, + struct rtnl_link_stats64 *storage) +{ + struct evb_port_priv *port_priv = netdev_priv(netdev); + u64 tmp; + int err; + + err = dpdmux_if_get_counter(port_priv->evb_priv->mc_io, + 0, + port_priv->evb_priv->mux_handle, + port_priv->port_index, + DPDMUX_CNT_ING_FRAME, &storage->rx_packets); + if (unlikely(err)) + goto error; + + err = dpdmux_if_get_counter(port_priv->evb_priv->mc_io, + 0, + port_priv->evb_priv->mux_handle, + port_priv->port_index, + DPDMUX_CNT_ING_BYTE, &storage->rx_bytes); + if (unlikely(err)) + goto error; + + err = dpdmux_if_get_counter(port_priv->evb_priv->mc_io, + 0, + port_priv->evb_priv->mux_handle, + port_priv->port_index, + DPDMUX_CNT_ING_FLTR_FRAME, &tmp); + if (unlikely(err)) + goto error; + + err = dpdmux_if_get_counter(port_priv->evb_priv->mc_io, + 0, + port_priv->evb_priv->mux_handle, + port_priv->port_index, + DPDMUX_CNT_ING_FRAME_DISCARD, + &storage->rx_dropped); + if (unlikely(err)) { + storage->rx_dropped = tmp; + goto error; + } + storage->rx_dropped += tmp; + + err = dpdmux_if_get_counter(port_priv->evb_priv->mc_io, + 0, + port_priv->evb_priv->mux_handle, + port_priv->port_index, + DPDMUX_CNT_ING_MCAST_FRAME, + &storage->multicast); + if (unlikely(err)) + goto error; + + err = dpdmux_if_get_counter(port_priv->evb_priv->mc_io, + 0, + port_priv->evb_priv->mux_handle, + port_priv->port_index, + DPDMUX_CNT_EGR_FRAME, &storage->tx_packets); + if (unlikely(err)) + goto error; + + err = dpdmux_if_get_counter(port_priv->evb_priv->mc_io, + 0, + port_priv->evb_priv->mux_handle, + port_priv->port_index, + DPDMUX_CNT_EGR_BYTE, &storage->tx_bytes); + if (unlikely(err)) + goto error; + + err = dpdmux_if_get_counter(port_priv->evb_priv->mc_io, + 0, + port_priv->evb_priv->mux_handle, + port_priv->port_index, + DPDMUX_CNT_EGR_FRAME_DISCARD, + &storage->tx_dropped); + if (unlikely(err)) + goto error; + + return storage; + +error: + netdev_err(netdev, "dpdmux_if_get_counter err %d\n", err); + return storage; +} + +static const struct net_device_ops evb_port_ops = { + .ndo_open = &evb_port_open, + + .ndo_start_xmit = &evb_dropframe, + + .ndo_fdb_add = &evb_port_fdb_add, + .ndo_fdb_del = &evb_port_fdb_del, + + .ndo_get_stats64 = &evb_port_get_stats, + .ndo_change_mtu = &evb_change_mtu, +}; + +static struct { + enum dpdmux_counter_type id; + char name[ETH_GSTRING_LEN]; +} evb_ethtool_counters[] = { + {DPDMUX_CNT_ING_FRAME, "rx frames"}, + {DPDMUX_CNT_ING_BYTE, "rx bytes"}, + {DPDMUX_CNT_ING_FLTR_FRAME, "rx filtered frames"}, + {DPDMUX_CNT_ING_FRAME_DISCARD, "rx discarded frames"}, + {DPDMUX_CNT_ING_BCAST_FRAME, "rx b-cast frames"}, + {DPDMUX_CNT_ING_BCAST_BYTES, "rx b-cast bytes"}, + {DPDMUX_CNT_ING_MCAST_FRAME, "rx m-cast frames"}, + {DPDMUX_CNT_ING_MCAST_BYTE, "rx m-cast bytes"}, + {DPDMUX_CNT_EGR_FRAME, "tx frames"}, + {DPDMUX_CNT_EGR_BYTE, "tx bytes"}, + {DPDMUX_CNT_EGR_FRAME_DISCARD, "tx discarded frames"}, +}; + +static int evb_ethtool_get_sset_count(struct net_device *dev, int sset) +{ + switch (sset) { + case ETH_SS_STATS: + return ARRAY_SIZE(evb_ethtool_counters); + default: + return -EOPNOTSUPP; + } +} + +static void evb_ethtool_get_strings(struct net_device *netdev, + u32 stringset, u8 *data) +{ + int i; + + switch (stringset) { + case ETH_SS_STATS: + for (i = 0; i < ARRAY_SIZE(evb_ethtool_counters); i++) + memcpy(data + i * ETH_GSTRING_LEN, + evb_ethtool_counters[i].name, ETH_GSTRING_LEN); + break; + } +} + +static void evb_ethtool_get_stats(struct net_device *netdev, + struct ethtool_stats *stats, + u64 *data) +{ + struct evb_port_priv *port_priv = netdev_priv(netdev); + int i; + int err; + + for (i = 0; i < ARRAY_SIZE(evb_ethtool_counters); i++) { + err = dpdmux_if_get_counter(port_priv->evb_priv->mc_io, + 0, + port_priv->evb_priv->mux_handle, + port_priv->port_index, + evb_ethtool_counters[i].id, + &data[i]); + if (err) + netdev_err(netdev, "dpdmux_if_get_counter[%s] err %d\n", + evb_ethtool_counters[i].name, err); + } +} + +static const struct ethtool_ops evb_port_ethtool_ops = { + .get_strings = &evb_ethtool_get_strings, + .get_ethtool_stats = &evb_ethtool_get_stats, + .get_sset_count = &evb_ethtool_get_sset_count, +}; + +static int evb_open(struct net_device *netdev) +{ + struct evb_priv *priv = netdev_priv(netdev); + int err = 0; + + err = dpdmux_enable(priv->mc_io, 0, priv->mux_handle); + if (unlikely(err)) + netdev_err(netdev, "dpdmux_enable err %d\n", err); + + return err; +} + +static int evb_close(struct net_device *netdev) +{ + struct evb_priv *priv = netdev_priv(netdev); + int err = 0; + + err = dpdmux_disable(priv->mc_io, 0, priv->mux_handle); + if (unlikely(err)) + netdev_err(netdev, "dpdmux_disable err %d\n", err); + + return err; +} + +static const struct net_device_ops evb_ops = { + .ndo_start_xmit = &evb_dropframe, + .ndo_open = &evb_open, + .ndo_stop = &evb_close, + + .ndo_bridge_setlink = &evb_setlink, + .ndo_bridge_getlink = &evb_getlink, + .ndo_bridge_dellink = &evb_dellink, + + .ndo_get_stats64 = &evb_port_get_stats, + .ndo_change_mtu = &evb_change_mtu, +}; + +static int evb_takedown(struct fsl_mc_device *evb_dev) +{ + struct device *dev = &evb_dev->dev; + struct net_device *netdev = dev_get_drvdata(dev); + struct evb_priv *priv = netdev_priv(netdev); + int err; + + err = dpdmux_close(priv->mc_io, 0, priv->mux_handle); + if (unlikely(err)) + dev_warn(dev, "dpdmux_close err %d\n", err); + + return 0; +} + +static int evb_init(struct fsl_mc_device *evb_dev) +{ + struct device *dev = &evb_dev->dev; + struct net_device *netdev = dev_get_drvdata(dev); + struct evb_priv *priv = netdev_priv(netdev); + int err = 0; + + priv->dev_id = evb_dev->obj_desc.id; + + err = dpdmux_open(priv->mc_io, 0, priv->dev_id, &priv->mux_handle); + if (unlikely(err)) { + dev_err(dev, "dpdmux_open err %d\n", err); + goto err_exit; + } + if (!priv->mux_handle) { + dev_err(dev, "dpdmux_open returned null handle but no error\n"); + err = -EFAULT; + goto err_exit; + } + + err = dpdmux_get_attributes(priv->mc_io, 0, priv->mux_handle, + &priv->attr); + if (unlikely(err)) { + dev_err(dev, "dpdmux_get_attributes err %d\n", err); + goto err_close; + } + + err = dpdmux_reset(priv->mc_io, 0, priv->mux_handle); + if (unlikely(err)) { + dev_err(dev, "dpdmux_reset err %d\n", err); + goto err_close; + } + + return 0; + +err_close: + dpdmux_close(priv->mc_io, 0, priv->mux_handle); +err_exit: + return err; +} + +static int evb_remove(struct fsl_mc_device *evb_dev) +{ + struct device *dev = &evb_dev->dev; + struct net_device *netdev = dev_get_drvdata(dev); + struct evb_priv *priv = netdev_priv(netdev); + struct evb_port_priv *port_priv; + struct list_head *pos; + + list_for_each(pos, &priv->port_list) { + port_priv = list_entry(pos, struct evb_port_priv, list); + + rtnl_lock(); + netdev_upper_dev_unlink(port_priv->netdev, netdev); + rtnl_unlock(); + + unregister_netdev(port_priv->netdev); + free_netdev(port_priv->netdev); + } + + evb_teardown_irqs(evb_dev); + + unregister_netdev(netdev); + + evb_takedown(evb_dev); + fsl_mc_portal_free(priv->mc_io); + + dev_set_drvdata(dev, NULL); + free_netdev(netdev); + + return 0; +} + +static int evb_probe(struct fsl_mc_device *evb_dev) +{ + struct device *dev; + struct evb_priv *priv = NULL; + struct net_device *netdev = NULL; + char port_name[IFNAMSIZ]; + int i; + int err = 0; + + dev = &evb_dev->dev; + + /* register switch device, it's for management only - no I/O */ + netdev = alloc_etherdev(sizeof(*priv)); + if (!netdev) { + dev_err(dev, "alloc_etherdev error\n"); + return -ENOMEM; + } + netdev->netdev_ops = &evb_ops; + + dev_set_drvdata(dev, netdev); + + priv = netdev_priv(netdev); + + err = fsl_mc_portal_allocate(evb_dev, 0, &priv->mc_io); + if (unlikely(err)) { + dev_err(dev, "fsl_mc_portal_allocate err %d\n", err); + goto err_free_netdev; + } + if (!priv->mc_io) { + dev_err(dev, "fsl_mc_portal_allocate returned null handle but no error\n"); + err = -EFAULT; + goto err_free_netdev; + } + + err = evb_init(evb_dev); + if (unlikely(err)) { + dev_err(dev, "evb init err %d\n", err); + goto err_free_cmdport; + } + + INIT_LIST_HEAD(&priv->port_list); + netdev->flags |= IFF_PROMISC | IFF_MASTER; + + dev_alloc_name(netdev, "evb%d"); + + /* register switch ports */ + snprintf(port_name, IFNAMSIZ, "%sp%%d", netdev->name); + + /* only register downlinks? */ + for (i = 0; i < priv->attr.num_ifs + 1; i++) { + struct net_device *port_netdev; + struct evb_port_priv *port_priv; + + if (i) { + port_netdev = + alloc_etherdev(sizeof(struct evb_port_priv)); + if (!port_netdev) { + dev_err(dev, "alloc_etherdev error\n"); + goto err_takedown; + } + + port_priv = netdev_priv(port_netdev); + + port_netdev->flags |= IFF_PROMISC | IFF_SLAVE; + + dev_alloc_name(port_netdev, port_name); + } else { + port_netdev = netdev; + port_priv = &priv->uplink; + } + + port_priv->netdev = port_netdev; + port_priv->evb_priv = priv; + port_priv->port_index = i; + + SET_NETDEV_DEV(port_netdev, dev); + + if (i) { + port_netdev->netdev_ops = &evb_port_ops; + + err = register_netdev(port_netdev); + if (err < 0) { + dev_err(dev, "register_netdev err %d\n", err); + free_netdev(port_netdev); + goto err_takedown; + } + + rtnl_lock(); + err = netdev_master_upper_dev_link(port_netdev, netdev, NULL, NULL); + if (unlikely(err)) { + dev_err(dev, "netdev_master_upper_dev_link err %d\n", + err); + unregister_netdev(port_netdev); + free_netdev(port_netdev); + rtnl_unlock(); + goto err_takedown; + } + rtmsg_ifinfo(RTM_NEWLINK, port_netdev, + IFF_SLAVE, GFP_KERNEL); + rtnl_unlock(); + + list_add(&(port_priv->list), &(priv->port_list)); + } else { + err = register_netdev(netdev); + + if (err < 0) { + dev_err(dev, "register_netdev error %d\n", err); + goto err_takedown; + } + } + + port_netdev->ethtool_ops = &evb_port_ethtool_ops; + + /* ports are up from init */ + rtnl_lock(); + err = dev_open(port_netdev); + rtnl_unlock(); + if (unlikely(err)) + dev_warn(dev, "dev_open err %d\n", err); + } + + /* setup irqs */ + err = evb_setup_irqs(evb_dev); + if (unlikely(err)) { + dev_warn(dev, "evb_setup_irqs err %d\n", err); + goto err_takedown; + } + + dev_info(dev, "probed evb device with %d ports\n", + priv->attr.num_ifs); + return 0; + +err_takedown: + evb_remove(evb_dev); +err_free_cmdport: + fsl_mc_portal_free(priv->mc_io); +err_free_netdev: + return err; +} + +static const struct fsl_mc_device_match_id evb_match_id_table[] = { + { + .vendor = FSL_MC_VENDOR_FREESCALE, + .obj_type = "dpdmux", + .ver_major = DPDMUX_VER_MAJOR, + .ver_minor = DPDMUX_VER_MINOR, + }, + {} +}; + +static struct fsl_mc_driver evb_drv = { + .driver = { + .name = KBUILD_MODNAME, + .owner = THIS_MODULE, + }, + .probe = evb_probe, + .remove = evb_remove, + .match_id_table = evb_match_id_table, +}; + +module_fsl_mc_driver(evb_drv); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Layerscape DPAA Edge Virtual Bridge driver (prototype)");