From: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Date: Mon, 3 May 2021 05:21:50 +0000 (+0530)
Subject: net/bnxt: prevent device access in error state
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=c967098a4c0aafa0cb244ab9423fdea3d943d1ab;p=dpdk.git

net/bnxt: prevent device access in error state

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")
Cc: stable@dpdk.org

Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Reviewed-by: Andy Gospodarek <gospo@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
---

diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index 719eb68847..822853a008 100644
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -4275,6 +4275,8 @@ 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))