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Diffstat (limited to 'target/linux/layerscape/patches-5.4/701-net-0134-bus-fsl-mc-Add-dprc-reset-container-support.patch')
-rw-r--r--target/linux/layerscape/patches-5.4/701-net-0134-bus-fsl-mc-Add-dprc-reset-container-support.patch99
1 files changed, 99 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0134-bus-fsl-mc-Add-dprc-reset-container-support.patch b/target/linux/layerscape/patches-5.4/701-net-0134-bus-fsl-mc-Add-dprc-reset-container-support.patch
new file mode 100644
index 0000000000..a609905a9e
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/701-net-0134-bus-fsl-mc-Add-dprc-reset-container-support.patch
@@ -0,0 +1,99 @@
+From 350201cc09a58dcf5c49f636238b01637f5ee06d Mon Sep 17 00:00:00 2001
+From: Laurentiu Tudor <laurentiu.tudor@nxp.com>
+Date: Fri, 13 Apr 2018 11:35:10 +0300
+Subject: [PATCH] bus: fsl-mc: Add dprc-reset-container support
+
+DPRC-reset is required for VFIO and is missing from
+mc-bus support.
+This patch added reset-container support.
+
+Signed-off-by: Bharat Bhushan <Bharat.Bhushan@nxp.com>
+Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
+---
+ drivers/bus/fsl-mc/dprc.c | 41 +++++++++++++++++++++++++++++++++++++
+ drivers/bus/fsl-mc/fsl-mc-private.h | 10 +++++++++
+ 2 files changed, 51 insertions(+)
+
+--- a/drivers/bus/fsl-mc/dprc.c
++++ b/drivers/bus/fsl-mc/dprc.c
+@@ -73,6 +73,47 @@ int dprc_close(struct fsl_mc_io *mc_io,
+ EXPORT_SYMBOL_GPL(dprc_close);
+
+ /**
++ * 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_'
++ * @token: Token of DPRC object
++ * @child_container_id: ID of the container to reset
++ *
++ * In case a software context crashes or becomes non-responsive, the parent
++ * may wish to reset its resources container before the software context is
++ * restarted.
++ *
++ * This routine informs all objects assigned to the child container that the
++ * container is being reset, so they may perform any cleanup operations that are
++ * needed. All objects handles that were owned by the child container shall be
++ * closed.
++ *
++ * Note that such request may be submitted even if the child software context
++ * has not crashed, but the resulting object cleanup operations will not be
++ * aware of that.
++ *
++ * Return: '0' on Success; Error code otherwise.
++ */
++int dprc_reset_container(struct fsl_mc_io *mc_io,
++ u32 cmd_flags,
++ u16 token,
++ int child_container_id)
++{
++ struct fsl_mc_command cmd = { 0 };
++ struct dprc_cmd_reset_container *cmd_params;
++
++ /* prepare command */
++ cmd.header = mc_encode_cmd_header(DPRC_CMDID_RESET_CONT,
++ cmd_flags, token);
++ cmd_params = (struct dprc_cmd_reset_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);
++}
++EXPORT_SYMBOL_GPL(dprc_reset_container);
++
++/**
+ * dprc_set_irq() - Set IRQ information for the DPRC 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_'
+--- a/drivers/bus/fsl-mc/fsl-mc-private.h
++++ b/drivers/bus/fsl-mc/fsl-mc-private.h
+@@ -93,6 +93,7 @@ int dpmcp_reset(struct fsl_mc_io *mc_io,
+ #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_SET_IRQ_ENABLE DPRC_CMD(0x012)
+@@ -111,6 +112,10 @@ struct dprc_cmd_open {
+ __le32 container_id;
+ };
+
++struct dprc_cmd_reset_container {
++ __le32 child_container_id;
++};
++
+ struct dprc_cmd_set_irq {
+ /* cmd word 0 */
+ __le32 irq_val;
+@@ -394,6 +399,11 @@ int dprc_get_container_id(struct fsl_mc_
+ u32 cmd_flags,
+ int *container_id);
+
++int dprc_reset_container(struct fsl_mc_io *mc_io,
++ u32 cmd_flags,
++ u16 token,
++ int child_container_id);
++
+ /*
+ * Data Path Buffer Pool (DPBP) API
+ */