From 52bececea4d2327d842ee40e6c99388b6b3d8f93 Mon Sep 17 00:00:00 2001
Message-Id: <52bececea4d2327d842ee40e6c99388b6b3d8f93.1524241750.git.dcaratti@redhat.com>
In-Reply-To: <02bd8182658600ebf2cbe61168e80c19ce4cdaa5.1524241750.git.dcaratti@redhat.com>
References: <02bd8182658600ebf2cbe61168e80c19ce4cdaa5.1524241750.git.dcaratti@redhat.com>
From: Ajit Khaparde <ajit.khaparde@broadcom.com>
Date: Fri, 20 Apr 2018 07:22:01 -0700
Subject: [PATCH 2/3] net/bnxt: avoid invalid vnic id in set L2 Rx mask

In some cases bnxt_hwrm_cfa_l2_set_rx_mask is being called before
VNICs are allocated. The FW returns an error in such cases.
Move bnxt_init_nic to bnxt_dev_init such that the ids are initialized
to an invalid id.
Prevent sending the command to the FW only with a valid vnic id.

Fixes: 244bc98b0da7 ("net/bnxt: set L2 Rx mask")
Cc: stable@dpdk.org

Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
---
 drivers/net/bnxt/bnxt_ethdev.c | 7 ++-----
 drivers/net/bnxt/bnxt_hwrm.c   | 3 +++
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index a133114a3..348129dad 100644
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -395,10 +395,6 @@ static int bnxt_init_nic(struct bnxt *bp)
 	bnxt_init_vnics(bp);
 	bnxt_init_filters(bp);
 
-	rc = bnxt_init_chip(bp);
-	if (rc)
-		return rc;
-
 	return 0;
 }
 
@@ -594,7 +590,7 @@ static int bnxt_dev_start_op(struct rte_eth_dev *eth_dev)
 	}
 	bp->dev_stopped = 0;
 
-	rc = bnxt_init_nic(bp);
+	rc = bnxt_init_chip(bp);
 	if (rc)
 		goto error;
 
@@ -3398,6 +3394,7 @@ bnxt_dev_init(struct rte_eth_dev *eth_dev)
 		goto error_free_int;
 
 	bnxt_enable_int(bp);
+	bnxt_init_nic(bp);
 
 	return 0;
 
diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index 11204bf42..bc8773509 100644
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -221,6 +221,9 @@ int bnxt_hwrm_cfa_l2_set_rx_mask(struct bnxt *bp,
 	struct hwrm_cfa_l2_set_rx_mask_output *resp = bp->hwrm_cmd_resp_addr;
 	uint32_t mask = 0;
 
+	if (vnic->fw_vnic_id == INVALID_HW_RING_ID)
+		return rc;
+
 	HWRM_PREP(req, CFA_L2_SET_RX_MASK);
 	req.vnic_id = rte_cpu_to_le_16(vnic->fw_vnic_id);
 
-- 
2.14.3