[dpdk-stable] patch 'net/bnxt: prevent device access in error state' has been queued to stable release 20.11.2

[Xueming Li]

Hi,

FYI, your patch has been queued to stable release 20.11.2

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 06/14/21. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Queued patches are on a temporary branch at:
https://github.com/steevenlee/dpdk

This queued commit can be viewed at:
https://github.com/steevenlee/dpdk/commit/a0a21cb0c7f032799d9a9eee1ccedcddb78121f5

Thanks.

Xueming Li <xuemingl at nvidia.com>

---
>From a0a21cb0c7f032799d9a9eee1ccedcddb78121f5 Mon Sep 17 00:00:00 2001
From: Kalesh AP <kalesh-anakkur.purayil at broadcom.com>
Date: Mon, 3 May 2021 10:51:50 +0530
Subject: [PATCH] net/bnxt: prevent device access in error state
Cc: Luca Boccassi <bluca at debian.org>

[ upstream commit c967098a4c0aafa0cb244ab9423fdea3d943d1ab ]

Driver should prevent any DMA with the device when it
detects an error. When firmware is in fatal state,
stop tx/rx by assigning them to dummy functions.

Fixes: be14720def9c ("net/bnxt: support FW reset")
Fixes: 9d0cbaecc91a ("net/bnxt: support periodic FW health monitoring")

Signed-off-by: Kalesh AP <kalesh-anakkur.purayil at broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur at broadcom.com>
Reviewed-by: Andy Gospodarek <gospo at broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde at broadcom.com>
---
 drivers/net/bnxt/bnxt_ethdev.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index 242841a598..1498f4a653 100644
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -4254,6 +4254,8 @@ reset:
 	bp->flags |= BNXT_FLAG_FATAL_ERROR;
 	bp->flags |= BNXT_FLAG_FW_RESET;
 
+	bnxt_stop_rxtx(bp);
+
 	PMD_DRV_LOG(ERR, "Detected FW dead condition\n");
 
 	if (bnxt_is_master_func(bp))
-- 
2.25.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2021-06-12 06:53:58.665550700 +0800
+++ 0080-net-bnxt-prevent-device-access-in-error-state.patch	2021-06-12 06:53:56.370000000 +0800
@@ -1 +1 @@
-From c967098a4c0aafa0cb244ab9423fdea3d943d1ab Mon Sep 17 00:00:00 2001
+From a0a21cb0c7f032799d9a9eee1ccedcddb78121f5 Mon Sep 17 00:00:00 2001
@@ -4,0 +5,3 @@
+Cc: Luca Boccassi <bluca at debian.org>
+
+[ upstream commit c967098a4c0aafa0cb244ab9423fdea3d943d1ab ]
@@ -12 +14,0 @@
-Cc: stable at dpdk.org
@@ -23 +25 @@
-index 719eb68847..822853a008 100644
+index 242841a598..1498f4a653 100644
@@ -26 +28 @@
-@@ -4275,6 +4275,8 @@ reset:
+@@ -4254,6 +4254,8 @@ reset: