[dpdk-stable] patch 'net/bnxt: fix device readiness check' 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/3d051e75a45ae60f8e49fb8d2de70e1a92c53bc3

Thanks.

Xueming Li <xuemingl at nvidia.com>

---
>From 3d051e75a45ae60f8e49fb8d2de70e1a92c53bc3 Mon Sep 17 00:00:00 2001
From: Kalesh AP <kalesh-anakkur.purayil at broadcom.com>
Date: Thu, 4 Mar 2021 14:37:27 +0530
Subject: [PATCH] net/bnxt: fix device readiness check
Cc: Luca Boccassi <bluca at debian.org>

[ upstream commit 3972281f47b2cc0cf844698885f0e6b4228c0975 ]

Fix HWRM_VER_GET command to handle DEV_NOT_RDY state.

Driver should fail probe if the device is not ready.
Conversely, the HWRM_VER_GET poll after reset can safely
retry until the existing timeout is exceeded.

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

Signed-off-by: Kalesh AP <kalesh-anakkur.purayil at broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur at broadcom.com>
Reviewed-by: Randy Schacher <stuart.schacher at broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde at broadcom.com>
---
 drivers/net/bnxt/bnxt_hwrm.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index 2477237b39..a27ecfac7e 100644
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -1096,6 +1096,11 @@ int bnxt_hwrm_ver_get(struct bnxt *bp, uint32_t timeout)
 	else
 		HWRM_CHECK_RESULT();
 
+	if (resp->flags & HWRM_VER_GET_OUTPUT_FLAGS_DEV_NOT_RDY) {
+		rc = -EAGAIN;
+		goto error;
+	}
+
 	PMD_DRV_LOG(INFO, "%d.%d.%d:%d.%d.%d.%d\n",
 		resp->hwrm_intf_maj_8b, resp->hwrm_intf_min_8b,
 		resp->hwrm_intf_upd_8b, resp->hwrm_fw_maj_8b,
@@ -5830,6 +5835,10 @@ int bnxt_hwrm_poll_ver_get(struct bnxt *bp)
 	rc = bnxt_hwrm_send_message(bp, &req, sizeof(req), BNXT_USE_CHIMP_MB);
 
 	HWRM_CHECK_RESULT_SILENT();
+
+	if (resp->flags & HWRM_VER_GET_OUTPUT_FLAGS_DEV_NOT_RDY)
+		rc = -EAGAIN;
+
 	HWRM_UNLOCK();
 
 	return rc;
-- 
2.25.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2021-05-10 23:59:28.089413000 +0800
+++ 0056-net-bnxt-fix-device-readiness-check.patch	2021-05-10 23:59:26.400000000 +0800
@@ -1 +1 @@
-From 3972281f47b2cc0cf844698885f0e6b4228c0975 Mon Sep 17 00:00:00 2001
+From 3d051e75a45ae60f8e49fb8d2de70e1a92c53bc3 Mon Sep 17 00:00:00 2001
@@ -4,0 +5,3 @@
+Cc: Luca Boccassi <bluca at debian.org>
+
+[ upstream commit 3972281f47b2cc0cf844698885f0e6b4228c0975 ]
@@ -13 +15,0 @@
-Cc: stable at dpdk.org
@@ -24 +26 @@
-index 02b0a214ca..5ef0845e8c 100644
+index 2477237b39..a27ecfac7e 100644
@@ -27 +29 @@
-@@ -1217,6 +1217,11 @@ int bnxt_hwrm_ver_get(struct bnxt *bp, uint32_t timeout)
+@@ -1096,6 +1096,11 @@ int bnxt_hwrm_ver_get(struct bnxt *bp, uint32_t timeout)
@@ -39 +41 @@
-@@ -6045,6 +6050,10 @@ int bnxt_hwrm_poll_ver_get(struct bnxt *bp)
+@@ -5830,6 +5835,10 @@ int bnxt_hwrm_poll_ver_get(struct bnxt *bp)