bnx2x: Fix VF's VLAN reconfiguration in reload.

Commit 04f05230c5c13 ("bnx2x: Remove configured vlans as
part of unload sequence."), introduced a regression in driver
that as a part of VF's reload flow, VLANs created on the VF
doesn't get re-configured in hardware as vlan metadata/info
was not getting cleared for the VFs which causes vlan PING to stop.

This patch clears the vlan metadata/info so that VLANs gets
re-configured back in the hardware in VF's reload flow and
PING/traffic continues for VLANs created over the VFs.

Fixes: 04f05230c5c13 ("bnx2x: Remove configured vlans as part of unload sequence.")
Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: Sudarsana Kalluru <skalluru@marvell.com>
Signed-off-by: Shahed Shaikh <shshaikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 18 insertions, 8 deletions

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index e47ea92e2ae3..d10b421ed1f1 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -3057,12 +3057,13 @@ int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode, bool keep_link)
         /* if VF indicate to PF this function is going down (PF will delete sp
          * elements and clear initializations
          */
-        if (IS_VF(bp))
+        if (IS_VF(bp)) {
+                bnx2x_clear_vlan_info(bp);
                 bnx2x_vfpf_close_vf(bp);
-        else if (unload_mode != UNLOAD_RECOVERY)
+        } else if (unload_mode != UNLOAD_RECOVERY) {
                 /* if this is a normal/close unload need to clean up chip*/
                 bnx2x_chip_cleanup(bp, unload_mode, keep_link);
-        else {
+        } else {
                 /* Send the UNLOAD_REQUEST to the MCP */
                 bnx2x_send_unload_req(bp, unload_mode);
 
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
index c2f6e44e9a3f..8b08cb18e363 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h
@@ -425,6 +425,8 @@ void bnx2x_set_reset_global(struct bnx2x *bp);
 void bnx2x_disable_close_the_gate(struct bnx2x *bp);
 int bnx2x_init_hw_func_cnic(struct bnx2x *bp);
 
+void bnx2x_clear_vlan_info(struct bnx2x *bp);
+
 /**
  * bnx2x_sp_event - handle ramrods completion.
  *
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 2cc14db8f0ec..192ff8d5da32 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -8482,11 +8482,21 @@ int bnx2x_set_vlan_one(struct bnx2x *bp, u16 vlan,
         return rc;
 }
 
+void bnx2x_clear_vlan_info(struct bnx2x *bp)
+{
+        struct bnx2x_vlan_entry *vlan;
+
+        /* Mark that hw forgot all entries */
+        list_for_each_entry(vlan, &bp->vlan_reg, link)
+                vlan->hw = false;
+
+        bp->vlan_cnt = 0;
+}
+
 static int bnx2x_del_all_vlans(struct bnx2x *bp)
 {
         struct bnx2x_vlan_mac_obj *vlan_obj = &bp->sp_objs[0].vlan_obj;
         unsigned long ramrod_flags = 0, vlan_flags = 0;
-        struct bnx2x_vlan_entry *vlan;
         int rc;
 
         __set_bit(RAMROD_COMP_WAIT, &ramrod_flags);
@@ -8495,10 +8505,7 @@ static int bnx2x_del_all_vlans(struct bnx2x *bp)
         if (rc)
                 return rc;
 
-        /* Mark that hw forgot all entries */
-        list_for_each_entry(vlan, &bp->vlan_reg, link)
-                vlan->hw = false;
-        bp->vlan_cnt = 0;
+        bnx2x_clear_vlan_info(bp);
 
         return 0;
 }