[dpdk-stable] patch 'net/bnxt: fix HWRM and FW incompatibility handling' has been queued to stable release 19.11.9

[Christian Ehrhardt]

Hi,

FYI, your patch has been queued to stable release 19.11.9

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 05/19/21. 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/cpaelzer/dpdk-stable-queue

This queued commit can be viewed at:
https://github.com/cpaelzer/dpdk-stable-queue/commit/c0406eb8205d5d93562d772cbee80ed375972d5d

Thanks.

Christian Ehrhardt <christian.ehrhardt at canonical.com>

---
>From c0406eb8205d5d93562d772cbee80ed375972d5d Mon Sep 17 00:00:00 2001
From: Kalesh AP <kalesh-anakkur.purayil at broadcom.com>
Date: Wed, 10 Mar 2021 13:20:53 +0530
Subject: [PATCH] net/bnxt: fix HWRM and FW incompatibility handling

[ upstream commit b0764e7c207b0932ecd73655d8f7aa015e6733f4 ]

Fix to return an error when the HWRM version that the driver
is compiled against is incompatible with the FW that is actually
running on the card. This is determined based on the req length
indicated by FW against the value supported in the HWRM.

Fixes: 804e746c7b73 ("net/bnxt: add hardware resource manager init code")

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

diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index f18ba83d8a..52b30bcb42 100644
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -1043,6 +1043,7 @@ int bnxt_hwrm_ver_get(struct bnxt *bp, uint32_t timeout)
 	if (bp->max_req_len > resp->max_req_win_len) {
 		PMD_DRV_LOG(ERR, "Unsupported request length\n");
 		rc = -EINVAL;
+		goto error;
 	}
 	bp->max_req_len = rte_le_to_cpu_16(resp->max_req_win_len);
 	bp->hwrm_max_ext_req_len = rte_le_to_cpu_16(resp->max_ext_req_len);
-- 
2.31.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2021-05-17 17:40:30.895229154 +0200
+++ 0034-net-bnxt-fix-HWRM-and-FW-incompatibility-handling.patch	2021-05-17 17:40:29.159809382 +0200
@@ -1 +1 @@
-From b0764e7c207b0932ecd73655d8f7aa015e6733f4 Mon Sep 17 00:00:00 2001
+From c0406eb8205d5d93562d772cbee80ed375972d5d Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit b0764e7c207b0932ecd73655d8f7aa015e6733f4 ]
+
@@ -12 +13,0 @@
-Cc: stable at dpdk.org
@@ -22 +23 @@
-index c16edc8956..3de5c7e3a1 100644
+index f18ba83d8a..52b30bcb42 100644
@@ -25 +26 @@
-@@ -1271,6 +1271,7 @@ int bnxt_hwrm_ver_get(struct bnxt *bp, uint32_t timeout)
+@@ -1043,6 +1043,7 @@ int bnxt_hwrm_ver_get(struct bnxt *bp, uint32_t timeout)
@@ -31,2 +32,2 @@
- 
- 	bp->chip_num = rte_le_to_cpu_16(resp->chip_num);
+ 	bp->max_req_len = rte_le_to_cpu_16(resp->max_req_win_len);
+ 	bp->hwrm_max_ext_req_len = rte_le_to_cpu_16(resp->max_ext_req_len);