list_add_tail(&f->list, &adapter->mac_filter_list);
f->add = true;
+ f->add_handled = false;
f->is_new_mac = true;
f->is_primary = ether_addr_equal(macaddr, adapter->hw.mac.addr);
adapter->aq_required |= IAVF_FLAG_AQ_ADD_MAC_FILTER;
}
/**
- * iavf_set_mac - NDO callback to set port mac address
- * @netdev: network interface device structure
- * @p: pointer to an address structure
+ * iavf_replace_primary_mac - Replace current primary address
+ * @adapter: board private structure
+ * @new_mac: new MAC address to be applied
*
- * Returns 0 on success, negative on failure
+ * Replace current dev_addr and send request to PF for removal of previous
+ * primary MAC address filter and addition of new primary MAC filter.
+ * Return 0 for success, -ENOMEM for failure.
+ *
+ * Do not call this with mac_vlan_list_lock!
**/
-static int iavf_set_mac(struct net_device *netdev, void *p)
+int iavf_replace_primary_mac(struct iavf_adapter *adapter,
+ const u8 *new_mac)
{
- struct iavf_adapter *adapter = netdev_priv(netdev);
struct iavf_hw *hw = &adapter->hw;
struct iavf_mac_filter *f;
- struct sockaddr *addr = p;
-
- if (!is_valid_ether_addr(addr->sa_data))
- return -EADDRNOTAVAIL;
-
- if (ether_addr_equal(netdev->dev_addr, addr->sa_data))
- return 0;
spin_lock_bh(&adapter->mac_vlan_list_lock);
+ list_for_each_entry(f, &adapter->mac_filter_list, list) {
+ f->is_primary = false;
+ }
+
f = iavf_find_filter(adapter, hw->mac.addr);
if (f) {
f->remove = true;
- f->is_primary = true;
adapter->aq_required |= IAVF_FLAG_AQ_DEL_MAC_FILTER;
}
- f = iavf_add_filter(adapter, addr->sa_data);
+ f = iavf_add_filter(adapter, new_mac);
+
if (f) {
+ /* Always send the request to add if changing primary MAC
+ * even if filter is already present on the list
+ */
f->is_primary = true;
- ether_addr_copy(hw->mac.addr, addr->sa_data);
+ f->add = true;
+ adapter->aq_required |= IAVF_FLAG_AQ_ADD_MAC_FILTER;
+ ether_addr_copy(hw->mac.addr, new_mac);
}
spin_unlock_bh(&adapter->mac_vlan_list_lock);
/* schedule the watchdog task to immediately process the request */
- if (f)
+ if (f) {
queue_work(iavf_wq, &adapter->watchdog_task.work);
+ return 0;
+ }
+ return -ENOMEM;
+}
+
+/**
+ * iavf_is_mac_set_handled - wait for a response to set MAC from PF
+ * @netdev: network interface device structure
+ * @macaddr: MAC address to set
+ *
+ * Returns true on success, false on failure
+ */
+static bool iavf_is_mac_set_handled(struct net_device *netdev,
+ const u8 *macaddr)
+{
+ struct iavf_adapter *adapter = netdev_priv(netdev);
+ struct iavf_mac_filter *f;
+ bool ret = false;
+
+ spin_lock_bh(&adapter->mac_vlan_list_lock);
+
+ f = iavf_find_filter(adapter, macaddr);
- return (f == NULL) ? -ENOMEM : 0;
+ if (!f || (!f->add && f->add_handled))
+ ret = true;
+
+ spin_unlock_bh(&adapter->mac_vlan_list_lock);
+
+ return ret;
+}
+
+/**
+ * iavf_set_mac - NDO callback to set port MAC address
+ * @netdev: network interface device structure
+ * @p: pointer to an address structure
+ *
+ * Returns 0 on success, negative on failure
+ */
+static int iavf_set_mac(struct net_device *netdev, void *p)
+{
+ struct iavf_adapter *adapter = netdev_priv(netdev);
+ struct sockaddr *addr = p;
+ bool handle_mac = iavf_is_mac_set_handled(netdev, addr->sa_data);
+ int ret;
+
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EADDRNOTAVAIL;
+
+ ret = iavf_replace_primary_mac(adapter, addr->sa_data);
+
+ if (ret)
+ return ret;
+
+ /* If this is an initial set MAC during VF spawn do not wait */
+ if (adapter->flags & IAVF_FLAG_INITIAL_MAC_SET) {
+ adapter->flags &= ~IAVF_FLAG_INITIAL_MAC_SET;
+ return 0;
+ }
+
+ if (handle_mac)
+ goto done;
+
+ ret = wait_event_interruptible_timeout(adapter->vc_waitqueue, false, msecs_to_jiffies(2500));
+
+ /* If ret < 0 then it means wait was interrupted.
+ * If ret == 0 then it means we got a timeout.
+ * else it means we got response for set MAC from PF,
+ * check if netdev MAC was updated to requested MAC,
+ * if yes then set MAC succeeded otherwise it failed return -EACCES
+ */
+ if (ret < 0)
+ return ret;
+
+ if (!ret)
+ return -EAGAIN;
+
+done:
+ if (!ether_addr_equal(netdev->dev_addr, addr->sa_data))
+ return -EACCES;
+
+ return 0;
}
/**
ether_addr_copy(netdev->perm_addr, adapter->hw.mac.addr);
}
+ adapter->flags |= IAVF_FLAG_INITIAL_MAC_SET;
+
adapter->tx_desc_count = IAVF_DEFAULT_TXD;
adapter->rx_desc_count = IAVF_DEFAULT_RXD;
err = iavf_init_interrupt_scheme(adapter);
}
/* No need to validate L4LEN as TCP is the only protocol with a
- * a flexible value and we support all possible values supported
+ * flexible value and we support all possible values supported
* by TCP, which is at most 15 dwords
*/
/* Setup the wait queue for indicating transition to down status */
init_waitqueue_head(&adapter->down_waitqueue);
+ /* Setup the wait queue for indicating virtchannel events */
+ init_waitqueue_head(&adapter->vc_waitqueue);
+
return 0;
err_ioremap:
projects / linux.git / blobdiff