From: Ajit Khaparde <ajit.khaparde@broadcom.com>
Date: Sat, 29 Sep 2018 02:00:03 +0000 (-0700)
Subject: net/bnxt: set a VNIC as default only once
X-Git-Url: http://git.droids-corp.org/?p=dpdk.git;a=commitdiff_plain;h=5bf10cdb67db5ee7308cc752b51f0f12dcdcb0e8

net/bnxt: set a VNIC as default only once

If a vnic is configured as default and the setting has not changed,
there is no need to issue this setting again to the FW.

Fixes: db678d5c2b54 ("net/bnxt: add HWRM VNIC configure")
Cc: stable@dpdk.org

Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
---

diff --git a/drivers/net/bnxt/bnxt.h b/drivers/net/bnxt/bnxt.h
index 75b7215ce4..f75b0ad3c5 100644
--- a/drivers/net/bnxt/bnxt.h
+++ b/drivers/net/bnxt/bnxt.h
@@ -261,6 +261,7 @@ struct bnxt {
 #define BNXT_FLAG_EXT_TX_PORT_STATS	(1 << 9)
 #define BNXT_FLAG_KONG_MB_EN	(1 << 10)
 #define BNXT_FLAG_TRUSTED_VF_EN	(1 << 11)
+#define BNXT_FLAG_DFLT_VNIC_SET	(1 << 12)
 #define BNXT_FLAG_NEW_RM	(1 << 30)
 #define BNXT_FLAG_INIT_DONE	(1 << 31)
 #define BNXT_PF(bp)		(!((bp)->flags & BNXT_FLAG_VF))
diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index b605659edb..38698e214c 100644
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -1460,9 +1460,12 @@ int bnxt_hwrm_vnic_cfg(struct bnxt *bp, struct bnxt_vnic_info *vnic)
 	req.cos_rule = rte_cpu_to_le_16(vnic->cos_rule);
 	req.lb_rule = rte_cpu_to_le_16(vnic->lb_rule);
 	req.mru = rte_cpu_to_le_16(vnic->mru);
-	if (vnic->func_default)
+	/* Configure default VNIC only once. */
+	if (vnic->func_default && !(bp->flags & BNXT_FLAG_DFLT_VNIC_SET)) {
 		req.flags |=
 		    rte_cpu_to_le_32(HWRM_VNIC_CFG_INPUT_FLAGS_DEFAULT);
+		bp->flags |= BNXT_FLAG_DFLT_VNIC_SET;
+	}
 	if (vnic->vlan_strip)
 		req.flags |=
 		    rte_cpu_to_le_32(HWRM_VNIC_CFG_INPUT_FLAGS_VLAN_STRIP_MODE);
@@ -1600,6 +1603,10 @@ int bnxt_hwrm_vnic_free(struct bnxt *bp, struct bnxt_vnic_info *vnic)
 	HWRM_UNLOCK();
 
 	vnic->fw_vnic_id = INVALID_HW_RING_ID;
+	/* Configure default VNIC again if necessary. */
+	if (vnic->func_default && (bp->flags & BNXT_FLAG_DFLT_VNIC_SET))
+		bp->flags &= ~BNXT_FLAG_DFLT_VNIC_SET;
+
 	return rc;
 }