[dpdk-dev] [PATCH v2 10/12] net/bnxt: set a VNIC as default only once

[Ajit Khaparde]

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.

Signed-off-by: Ajit Khaparde <ajit.khapa...@broadcom.com>
---
 drivers/net/bnxt/bnxt.h      | 1 +
 drivers/net/bnxt/bnxt_hwrm.c | 9 ++++++++-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/net/bnxt/bnxt.h b/drivers/net/bnxt/bnxt.h
index 44c3747f2..c95fb9e3d 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 b605659ed..38698e214 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;
 }
 
-- 
2.17.1 (Apple Git-112)