qlcnic: Enable VF flood bit on PF.

o On enabling VF flood bit, PF driver will  be able to receive traffic
  from all its VFs.

Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
index c588286..09acf15 100644 (file)
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
@@ -15,6 +15,8 @@
 #define QLC_MAC_OPCODE_MASK    0x7
 #define QLC_MAC_STAR_ADD       6
 #define QLC_MAC_STAR_DEL       7
+#define QLC_VF_FLOOD_BIT       BIT_16
+#define QLC_FLOOD_MODE         0x5
 
 static int qlcnic_sriov_pf_get_vport_handle(struct qlcnic_adapter *, u8);
 
@@ -347,6 +349,28 @@ static int qlcnic_sriov_pf_cfg_vlan_filtering(struct qlcnic_adapter *adapter,
        return err;
 }
 
+/* On configuring VF flood bit, PFD will receive traffic from all VFs */
+static int qlcnic_sriov_pf_cfg_flood(struct qlcnic_adapter *adapter)
+{
+       struct qlcnic_cmd_args cmd;
+       int err;
+
+       err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_SET_NIC_INFO);
+       if (err)
+               return err;
+
+       cmd.req.arg[1] = QLC_FLOOD_MODE | QLC_VF_FLOOD_BIT;
+
+       err = qlcnic_issue_cmd(adapter, &cmd);
+       if (err)
+               dev_err(&adapter->pdev->dev,
+                       "Failed to configure VF Flood bit on PF, err=%d\n",
+                       err);
+
+       qlcnic_free_mbx_args(&cmd);
+       return err;
+}
+
 static int qlcnic_sriov_pf_cfg_eswitch(struct qlcnic_adapter *adapter,
                                       u8 func, u8 enable)
 {
@@ -474,6 +498,12 @@ static int qlcnic_sriov_pf_init(struct qlcnic_adapter *adapter)
        if (err)
                return err;
 
+       if (qlcnic_84xx_check(adapter)) {
+               err = qlcnic_sriov_pf_cfg_flood(adapter);
+               if (err)
+                       goto disable_vlan_filtering;
+       }
+
        err = qlcnic_sriov_pf_cfg_eswitch(adapter, func, 1);
        if (err)
                goto disable_vlan_filtering;