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-rw-r--r--drivers/net/ethernet/intel/fm10k/fm10k_netdev.c105
1 files changed, 80 insertions, 25 deletions
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c b/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c
index 70cd121d465f..24f2f6f86f5a 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c
@@ -737,6 +737,23 @@ static void fm10k_tx_timeout(struct net_device *netdev)
}
}
+/**
+ * fm10k_host_mbx_ready - Check PF interface's mailbox readiness
+ * @interface: board private structure
+ *
+ * This function checks if the PF interface's mailbox is ready before queueing
+ * mailbox messages for transmission. This will prevent filling the TX mailbox
+ * queue when the receiver is not ready. VF interfaces are exempt from this
+ * check since it will block all PF-VF mailbox messages from being sent from
+ * the VF to the PF at initialization.
+ **/
+static bool fm10k_host_mbx_ready(struct fm10k_intfc *interface)
+{
+ struct fm10k_hw *hw = &interface->hw;
+
+ return (hw->mac.type == fm10k_mac_vf || interface->host_ready);
+}
+
static int fm10k_uc_vlan_unsync(struct net_device *netdev,
const unsigned char *uc_addr)
{
@@ -745,12 +762,15 @@ static int fm10k_uc_vlan_unsync(struct net_device *netdev,
u16 glort = interface->glort;
u16 vid = interface->vid;
bool set = !!(vid / VLAN_N_VID);
- int err;
+ int err = -EHOSTDOWN;
/* drop any leading bits on the VLAN ID */
vid &= VLAN_N_VID - 1;
- err = hw->mac.ops.update_uc_addr(hw, glort, uc_addr, vid, set, 0);
+ if (fm10k_host_mbx_ready(interface))
+ err = hw->mac.ops.update_uc_addr(hw, glort, uc_addr,
+ vid, set, 0);
+
if (err)
return err;
@@ -766,12 +786,14 @@ static int fm10k_mc_vlan_unsync(struct net_device *netdev,
u16 glort = interface->glort;
u16 vid = interface->vid;
bool set = !!(vid / VLAN_N_VID);
- int err;
+ int err = -EHOSTDOWN;
/* drop any leading bits on the VLAN ID */
vid &= VLAN_N_VID - 1;
- err = hw->mac.ops.update_mc_addr(hw, glort, mc_addr, vid, set);
+ if (fm10k_host_mbx_ready(interface))
+ err = hw->mac.ops.update_mc_addr(hw, glort, mc_addr, vid, set);
+
if (err)
return err;
@@ -834,9 +856,13 @@ static int fm10k_update_vid(struct net_device *netdev, u16 vid, bool set)
goto err_out;
}
- /* update our base MAC address */
- err = hw->mac.ops.update_uc_addr(hw, interface->glort, hw->mac.addr,
- vid, set, 0);
+ /* update our base MAC address if host's mailbox is ready */
+ if (fm10k_host_mbx_ready(interface))
+ err = hw->mac.ops.update_uc_addr(hw, interface->glort,
+ hw->mac.addr, vid, set, 0);
+ else
+ err = -EHOSTDOWN;
+
if (err)
goto err_out;
@@ -907,12 +933,15 @@ static int __fm10k_uc_sync(struct net_device *dev,
if (!is_valid_ether_addr(addr))
return -EADDRNOTAVAIL;
- /* update table with current entries */
+ /* update table with current entries if host's mailbox is ready */
+ if (!fm10k_host_mbx_ready(interface))
+ return -EHOSTDOWN;
+
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,
- vid, sync, 0);
+ vid, sync, 0);
if (err)
return err;
}
@@ -970,7 +999,10 @@ static int __fm10k_mc_sync(struct net_device *dev,
struct fm10k_hw *hw = &interface->hw;
u16 vid, glort = interface->glort;
- /* update table with current entries */
+ /* update table with current entries if host's mailbox is ready */
+ if (!fm10k_host_mbx_ready(interface))
+ return 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)) {
@@ -1018,8 +1050,10 @@ static void fm10k_set_rx_mode(struct net_device *dev)
if (interface->xcast_mode == FM10K_XCAST_MODE_PROMISC)
fm10k_clear_unused_vlans(interface);
- /* update xcast mode */
- hw->mac.ops.update_xcast_mode(hw, interface->glort, xcast_mode);
+ /* update xcast mode if host's mailbox is ready */
+ if (fm10k_host_mbx_ready(interface))
+ hw->mac.ops.update_xcast_mode(hw, interface->glort,
+ xcast_mode);
/* record updated xcast mode state */
interface->xcast_mode = xcast_mode;
@@ -1054,8 +1088,10 @@ void fm10k_restore_rx_state(struct fm10k_intfc *interface)
fm10k_mbx_lock(interface);
- /* Enable logical port */
- hw->mac.ops.update_lport_state(hw, glort, interface->glort_count, true);
+ /* Enable logical port if host's mailbox is ready */
+ if (fm10k_host_mbx_ready(interface))
+ hw->mac.ops.update_lport_state(hw, glort,
+ interface->glort_count, true);
/* update VLAN table */
hw->mac.ops.update_vlan(hw, FM10K_VLAN_ALL, 0,
@@ -1069,12 +1105,18 @@ void fm10k_restore_rx_state(struct fm10k_intfc *interface)
vid < VLAN_N_VID;
vid = fm10k_find_next_vlan(interface, vid)) {
hw->mac.ops.update_vlan(hw, vid, 0, true);
- hw->mac.ops.update_uc_addr(hw, glort, hw->mac.addr,
- vid, true, 0);
+
+ /* Update unicast entries if host's mailbox is ready */
+ if (fm10k_host_mbx_ready(interface))
+ hw->mac.ops.update_uc_addr(hw, glort, hw->mac.addr,
+ vid, true, 0);
}
- /* update xcast mode before synchronizing addresses */
- hw->mac.ops.update_xcast_mode(hw, glort, xcast_mode);
+ /* update xcast mode before synchronizing addresses if host's mailbox
+ * is ready
+ */
+ if (fm10k_host_mbx_ready(interface))
+ hw->mac.ops.update_xcast_mode(hw, glort, xcast_mode);
/* synchronize all of the addresses */
__dev_uc_sync(netdev, fm10k_uc_sync, fm10k_uc_unsync);
@@ -1096,9 +1138,12 @@ void fm10k_reset_rx_state(struct fm10k_intfc *interface)
fm10k_mbx_lock(interface);
- /* clear the logical port state on lower device */
- hw->mac.ops.update_lport_state(hw, interface->glort,
- interface->glort_count, false);
+ /* clear the logical port state on lower device if host's mailbox is
+ * ready
+ */
+ if (fm10k_host_mbx_ready(interface))
+ hw->mac.ops.update_lport_state(hw, interface->glort,
+ interface->glort_count, false);
fm10k_mbx_unlock(interface);
@@ -1319,8 +1364,13 @@ static void *fm10k_dfwd_add_station(struct net_device *dev,
fm10k_mbx_lock(interface);
glort = l2_accel->dglort + 1 + i;
- hw->mac.ops.update_xcast_mode(hw, glort, FM10K_XCAST_MODE_MULTI);
- hw->mac.ops.update_uc_addr(hw, glort, sdev->dev_addr, 0, true, 0);
+
+ if (fm10k_host_mbx_ready(interface)) {
+ hw->mac.ops.update_xcast_mode(hw, glort,
+ FM10K_XCAST_MODE_MULTI);
+ hw->mac.ops.update_uc_addr(hw, glort, sdev->dev_addr,
+ 0, true, 0);
+ }
fm10k_mbx_unlock(interface);
@@ -1354,8 +1404,13 @@ static void fm10k_dfwd_del_station(struct net_device *dev, void *priv)
fm10k_mbx_lock(interface);
glort = l2_accel->dglort + 1 + i;
- hw->mac.ops.update_xcast_mode(hw, glort, FM10K_XCAST_MODE_NONE);
- hw->mac.ops.update_uc_addr(hw, glort, sdev->dev_addr, 0, false, 0);
+
+ if (fm10k_host_mbx_ready(interface)) {
+ hw->mac.ops.update_xcast_mode(hw, glort,
+ FM10K_XCAST_MODE_NONE);
+ hw->mac.ops.update_uc_addr(hw, glort, sdev->dev_addr,
+ 0, false, 0);
+ }
fm10k_mbx_unlock(interface);
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-02 03:31:30 +0300