X-Git-Url: http://git.openwrt.org/?a=blobdiff_plain;f=target%2Flinux%2Flayerscape%2Fpatches-5.4%2F701-net-0134-bus-fsl-mc-Add-dprc-reset-container-support.patch;fp=target%2Flinux%2Flayerscape%2Fpatches-5.4%2F701-net-0134-bus-fsl-mc-Add-dprc-reset-container-support.patch;h=a609905a9ea39d91d70a4052a21bb3a3d71f9611;hb=cddd4591404fb4c53dc0b3c0b15b942cdbed4356;hp=0000000000000000000000000000000000000000;hpb=d1d2c0b5579ea4f69a42246c9318539d61ba1999;p=openwrt%2Fstaging%2Fwigyori.git

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
+  */