[dpdk-stable] patch 'net/bnxt: fix RSS context cleanup' 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 05/12/21. 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/88f2faa23cb3c3fd054f9b283eae65b6e2f98ee0

Thanks.

Xueming Li <xuemingl at nvidia.com>

---
>From 88f2faa23cb3c3fd054f9b283eae65b6e2f98ee0 Mon Sep 17 00:00:00 2001
From: Ajit Khaparde <ajit.khaparde at broadcom.com>
Date: Mon, 15 Mar 2021 22:42:40 -0700
Subject: [PATCH] net/bnxt: fix RSS context cleanup
Cc: Luca Boccassi <bluca at debian.org>

[ upstream commit 670ab553841b2f2bbf59667465855b0869eea86b ]

The PMD is allocating an extra RSS context with each port start.
But it is freeing only one RSS context during port stop. So at some point
we run out of RSS contexts when we do multiple port stop/start sequences.
bnxt_hwrm_vnic_ctx_alloc() is called by bnxt_setup_one_vnic(), but
bnxt_hwrm_vnic_ctx_free() is not called in the corresponding
bnxt_free_one_vnic().

Fix this by calling bnxt_hwrm_vnic_ctx_free() in bnxt_free_one_vnic().

Fixes: 7fe5668d2ea3 ("net/bnxt: support VLAN filter and strip")

Signed-off-by: Ajit Khaparde <ajit.khaparde at broadcom.com>
---
 drivers/net/bnxt/bnxt_ethdev.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index f0de380271..86c36e46d9 100644
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -2425,6 +2425,10 @@ static int bnxt_free_one_vnic(struct bnxt *bp, uint16_t vnic_id)
 	}
 	bnxt_del_dflt_mac_filter(bp, vnic);
 
+	rc = bnxt_hwrm_vnic_ctx_free(bp, vnic);
+	if (rc)
+		return rc;
+
 	rc = bnxt_hwrm_vnic_free(bp, vnic);
 	if (rc)
 		return rc;
-- 
2.25.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2021-05-10 23:59:28.927055800 +0800
+++ 0090-net-bnxt-fix-RSS-context-cleanup.patch	2021-05-10 23:59:26.450000000 +0800
@@ -1 +1 @@
-From 670ab553841b2f2bbf59667465855b0869eea86b Mon Sep 17 00:00:00 2001
+From 88f2faa23cb3c3fd054f9b283eae65b6e2f98ee0 Mon Sep 17 00:00:00 2001
@@ -4,0 +5,3 @@
+Cc: Luca Boccassi <bluca at debian.org>
+
+[ upstream commit 670ab553841b2f2bbf59667465855b0869eea86b ]
@@ -16 +18,0 @@
-Cc: stable at dpdk.org
@@ -24 +26 @@
-index 1997783a7d..ff92f999db 100644
+index f0de380271..86c36e46d9 100644
@@ -27 +29 @@
-@@ -2531,6 +2531,10 @@ static int bnxt_free_one_vnic(struct bnxt *bp, uint16_t vnic_id)
+@@ -2425,6 +2425,10 @@ static int bnxt_free_one_vnic(struct bnxt *bp, uint16_t vnic_id)