fm10k: Fix multicast mode sync issues

Multicast mode checking is no longer a requirement to perform unicast
and multicast address syncs. Specifically, a device operating in
promiscuous and/or all multicast mode is not excluded. The issue occurs
when the netdev is pre-configured to either multicast mode and is
enabled for the first time. The multicast-group table in the Switch
Manager will be missing obvious multicast entries associated to this
netdev.

Changes were also made to disallow unicast and multicast syncs with
VLAN 0. The Switch Manager considers VLAN 0 to be an invalid entry.
Requests with VLAN 0 by the netdev are only generated when the driver is
freshly installed and the default VID is not set.

Signed-off-by: Ngai-Mint Kwan <ngai-mint.kwan@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Orabug: 25394529
(cherry picked from commit 8998763a7b57583ef2e07f68ea6a7d05bcfc1cfa)
Signed-off-by: Jack Vogel <jack.vogel@oracle.com>

diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c b/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c
index 59af0d58d364a41c998da16af818f1989e047170..8005a6087f6ef087e767e8087072dd67e7c44e89 100644 (file)
--- a/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c
@@ -884,7 +884,7 @@ static int __fm10k_uc_sync(struct net_device *dev,
                return -EADDRNOTAVAIL;
 
        /* update table with current entries */
-       for (vid = hw->mac.default_vid ? fm10k_find_next_vlan(interface, 0) : 0;
+       for (vid = hw->mac.default_vid ? fm10k_find_next_vlan(interface, 0) : 1;
             vid < VLAN_N_VID;
             vid = fm10k_find_next_vlan(interface, vid)) {
                err = hw->mac.ops.update_uc_addr(hw, glort, addr,
@@ -947,7 +947,7 @@ static int __fm10k_mc_sync(struct net_device *dev,
        u16 vid, glort = interface->glort;
 
        /* update table with current entries */
-       for (vid = hw->mac.default_vid ? fm10k_find_next_vlan(interface, 0) : 0;
+       for (vid = hw->mac.default_vid ? fm10k_find_next_vlan(interface, 0) : 1;
             vid < VLAN_N_VID;
             vid = fm10k_find_next_vlan(interface, vid)) {
                hw->mac.ops.update_mc_addr(hw, glort, addr, vid, sync);
@@ -1002,11 +1002,8 @@ static void fm10k_set_rx_mode(struct net_device *dev)
        }
 
        /* synchronize all of the addresses */
-       if (xcast_mode != FM10K_XCAST_MODE_PROMISC) {
-               __dev_uc_sync(dev, fm10k_uc_sync, fm10k_uc_unsync);
-               if (xcast_mode != FM10K_XCAST_MODE_ALLMULTI)
-                       __dev_mc_sync(dev, fm10k_mc_sync, fm10k_mc_unsync);
-       }
+       __dev_uc_sync(dev, fm10k_uc_sync, fm10k_uc_unsync);
+       __dev_mc_sync(dev, fm10k_mc_sync, fm10k_mc_unsync);
 
        fm10k_mbx_unlock(interface);
 }
@@ -1044,7 +1041,7 @@ void fm10k_restore_rx_state(struct fm10k_intfc *interface)
        hw->mac.ops.update_vlan(hw, 0, 0, true);
 
        /* update table with current entries */
-       for (vid = hw->mac.default_vid ? fm10k_find_next_vlan(interface, 0) : 0;
+       for (vid = hw->mac.default_vid ? fm10k_find_next_vlan(interface, 0) : 1;
             vid < VLAN_N_VID;
             vid = fm10k_find_next_vlan(interface, vid)) {
                hw->mac.ops.update_vlan(hw, vid, 0, true);
@@ -1056,11 +1053,8 @@ void fm10k_restore_rx_state(struct fm10k_intfc *interface)
        hw->mac.ops.update_xcast_mode(hw, glort, xcast_mode);
 
        /* synchronize all of the addresses */
-       if (xcast_mode != FM10K_XCAST_MODE_PROMISC) {
-               __dev_uc_sync(netdev, fm10k_uc_sync, fm10k_uc_unsync);
-               if (xcast_mode != FM10K_XCAST_MODE_ALLMULTI)
-                       __dev_mc_sync(netdev, fm10k_mc_sync, fm10k_mc_unsync);
-       }
+       __dev_uc_sync(netdev, fm10k_uc_sync, fm10k_uc_unsync);
+       __dev_mc_sync(netdev, fm10k_mc_sync, fm10k_mc_unsync);
 
        fm10k_mbx_unlock(interface);