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bonding: trivial: style and comment fixes
First adjust a couple of locking comments that were left inaccurate, then adjust comments to use the netdev styling and remove extra new lines where necessary and add a couple of new lines between declarations and code. These are all trivial styling changes, no functional change. Also removed a couple of outdated or obvious comments. This patch is by no means a complete fix of all netdev style violations but it gets the bonding closer. Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nikolay Aleksandrov
David S. Miller
parent
56924c3811
commit
547942cace
@ -297,15 +297,14 @@ static u16 __get_link_speed(struct port *port)
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static u8 __get_duplex(struct port *port)
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{
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struct slave *slave = port->slave;
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u8 retval;
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/* handling a special case: when the configuration starts with
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* link down, it sets the duplex to 0.
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*/
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if (slave->link != BOND_LINK_UP)
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if (slave->link != BOND_LINK_UP) {
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retval = 0x0;
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else {
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} else {
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switch (slave->duplex) {
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case DUPLEX_FULL:
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retval = 0x1;
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@ -261,14 +261,15 @@ static struct slave *tlb_choose_channel(struct bonding *bond, u32 hash_index,
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u32 skb_len)
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{
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struct slave *tx_slave;
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/*
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* We don't need to disable softirq here, becase
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/* We don't need to disable softirq here, becase
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* tlb_choose_channel() is only called by bond_alb_xmit()
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* which already has softirq disabled.
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*/
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spin_lock(&bond->mode_lock);
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tx_slave = __tlb_choose_channel(bond, hash_index, skb_len);
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spin_unlock(&bond->mode_lock);
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return tx_slave;
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}
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@ -569,7 +570,7 @@ static void rlb_req_update_subnet_clients(struct bonding *bond, __be32 src_ip)
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netdev_err(bond->dev, "found a client with no channel in the client's hash table\n");
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continue;
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}
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/*update all clients using this src_ip, that are not assigned
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/* update all clients using this src_ip, that are not assigned
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* to the team's address (curr_active_slave) and have a known
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* unicast mac address.
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*/
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@ -695,9 +696,7 @@ static struct slave *rlb_arp_xmit(struct sk_buff *skb, struct bonding *bond)
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return NULL;
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if (arp->op_code == htons(ARPOP_REPLY)) {
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/* the arp must be sent on the selected
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* rx channel
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*/
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/* the arp must be sent on the selected rx channel */
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tx_slave = rlb_choose_channel(skb, bond);
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if (tx_slave)
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ether_addr_copy(arp->mac_src, tx_slave->dev->dev_addr);
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@ -756,7 +755,7 @@ static void rlb_rebalance(struct bonding *bond)
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spin_unlock_bh(&bond->mode_lock);
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}
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/* Caller must hold rx_hashtbl lock */
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/* Caller must hold mode_lock */
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static void rlb_init_table_entry_dst(struct rlb_client_info *entry)
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{
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entry->used_next = RLB_NULL_INDEX;
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@ -844,8 +843,9 @@ static void rlb_src_link(struct bonding *bond, u32 ip_src_hash, u32 ip_dst_hash)
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bond_info->rx_hashtbl[ip_src_hash].src_first = ip_dst_hash;
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}
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/* deletes all rx_hashtbl entries with arp->ip_src if their mac_src does
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* not match arp->mac_src */
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/* deletes all rx_hashtbl entries with arp->ip_src if their mac_src does
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* not match arp->mac_src
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*/
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static void rlb_purge_src_ip(struct bonding *bond, struct arp_pkt *arp)
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{
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struct alb_bond_info *bond_info = &(BOND_ALB_INFO(bond));
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@ -1022,8 +1022,9 @@ static int alb_set_slave_mac_addr(struct slave *slave, u8 addr[])
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return 0;
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}
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/* for rlb each slave must have a unique hw mac addresses so that */
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/* each slave will receive packets destined to a different mac */
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/* for rlb each slave must have a unique hw mac addresses so that
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* each slave will receive packets destined to a different mac
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*/
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memcpy(s_addr.sa_data, addr, dev->addr_len);
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s_addr.sa_family = dev->type;
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if (dev_set_mac_address(dev, &s_addr)) {
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@ -1034,13 +1035,10 @@ static int alb_set_slave_mac_addr(struct slave *slave, u8 addr[])
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return 0;
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}
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/*
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* Swap MAC addresses between two slaves.
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/* Swap MAC addresses between two slaves.
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*
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* Called with RTNL held, and no other locks.
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*
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*/
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static void alb_swap_mac_addr(struct slave *slave1, struct slave *slave2)
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{
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u8 tmp_mac_addr[ETH_ALEN];
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@ -1051,8 +1049,7 @@ static void alb_swap_mac_addr(struct slave *slave1, struct slave *slave2)
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}
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/*
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* Send learning packets after MAC address swap.
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/* Send learning packets after MAC address swap.
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*
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* Called with RTNL and no other locks
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*/
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@ -1125,7 +1122,6 @@ static void alb_change_hw_addr_on_detach(struct bonding *bond, struct slave *sla
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found_slave = bond_slave_has_mac(bond, slave->perm_hwaddr);
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if (found_slave) {
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/* locking: needs RTNL and nothing else */
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alb_swap_mac_addr(slave, found_slave);
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alb_fasten_mac_swap(bond, slave, found_slave);
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}
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@ -1174,7 +1170,8 @@ static int alb_handle_addr_collision_on_attach(struct bonding *bond, struct slav
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return 0;
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/* Try setting slave mac to bond address and fall-through
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to code handling that situation below... */
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* to code handling that situation below...
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*/
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alb_set_slave_mac_addr(slave, bond->dev->dev_addr);
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}
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@ -1282,7 +1279,6 @@ int bond_alb_initialize(struct bonding *bond, int rlb_enabled)
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if (rlb_enabled) {
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bond->alb_info.rlb_enabled = 1;
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/* initialize rlb */
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res = rlb_initialize(bond);
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if (res) {
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tlb_deinitialize(bond);
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@ -1306,7 +1302,7 @@ void bond_alb_deinitialize(struct bonding *bond)
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}
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static int bond_do_alb_xmit(struct sk_buff *skb, struct bonding *bond,
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struct slave *tx_slave)
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struct slave *tx_slave)
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{
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struct alb_bond_info *bond_info = &(BOND_ALB_INFO(bond));
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struct ethhdr *eth_data = eth_hdr(skb);
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@ -1554,13 +1550,11 @@ void bond_alb_monitor(struct work_struct *work)
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bond_info->tx_rebalance_counter = 0;
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}
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/* handle rlb stuff */
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if (bond_info->rlb_enabled) {
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if (bond_info->primary_is_promisc &&
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(++bond_info->rlb_promisc_timeout_counter >= RLB_PROMISC_TIMEOUT)) {
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/*
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* dev_set_promiscuity requires rtnl and
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/* dev_set_promiscuity requires rtnl and
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* nothing else. Avoid race with bond_close.
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*/
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rcu_read_unlock();
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@ -1630,8 +1624,7 @@ int bond_alb_init_slave(struct bonding *bond, struct slave *slave)
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return 0;
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}
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/*
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* Remove slave from tlb and rlb hash tables, and fix up MAC addresses
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/* Remove slave from tlb and rlb hash tables, and fix up MAC addresses
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* if necessary.
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*
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* Caller must hold RTNL and no other locks
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@ -1718,8 +1711,7 @@ void bond_alb_handle_active_change(struct bonding *bond, struct slave *new_slave
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if (!swap_slave)
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swap_slave = bond_slave_has_mac(bond, bond->dev->dev_addr);
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/*
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* Arrange for swap_slave and new_slave to temporarily be
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/* Arrange for swap_slave and new_slave to temporarily be
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* ignored so we can mess with their MAC addresses without
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* fear of interference from transmit activity.
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*/
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@ -13,9 +13,7 @@
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static struct dentry *bonding_debug_root;
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/*
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* Show RLB hash table
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*/
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/* Show RLB hash table */
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static int bond_debug_rlb_hash_show(struct seq_file *m, void *v)
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{
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struct bonding *bond = m->private;
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@ -253,8 +253,7 @@ void bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb,
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dev_queue_xmit(skb);
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}
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/*
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* In the following 2 functions, bond_vlan_rx_add_vid and bond_vlan_rx_kill_vid,
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/* In the following 2 functions, bond_vlan_rx_add_vid and bond_vlan_rx_kill_vid,
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* We don't protect the slave list iteration with a lock because:
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* a. This operation is performed in IOCTL context,
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* b. The operation is protected by the RTNL semaphore in the 8021q code,
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@ -326,8 +325,7 @@ static int bond_vlan_rx_kill_vid(struct net_device *bond_dev,
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/*------------------------------- Link status -------------------------------*/
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/*
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* Set the carrier state for the master according to the state of its
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/* Set the carrier state for the master according to the state of its
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* slaves. If any slaves are up, the master is up. In 802.3ad mode,
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* do special 802.3ad magic.
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*
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@ -362,8 +360,7 @@ down:
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return 0;
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}
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/*
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* Get link speed and duplex from the slave's base driver
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/* Get link speed and duplex from the slave's base driver
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* using ethtool. If for some reason the call fails or the
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* values are invalid, set speed and duplex to -1,
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* and return.
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@ -416,8 +413,7 @@ const char *bond_slave_link_status(s8 link)
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}
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}
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/*
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* if <dev> supports MII link status reporting, check its link status.
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/* if <dev> supports MII link status reporting, check its link status.
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*
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* We either do MII/ETHTOOL ioctls, or check netif_carrier_ok(),
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* depending upon the setting of the use_carrier parameter.
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@ -454,14 +450,14 @@ static int bond_check_dev_link(struct bonding *bond,
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/* Ethtool can't be used, fallback to MII ioctls. */
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ioctl = slave_ops->ndo_do_ioctl;
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if (ioctl) {
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/* TODO: set pointer to correct ioctl on a per team member */
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/* bases to make this more efficient. that is, once */
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/* we determine the correct ioctl, we will always */
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/* call it and not the others for that team */
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/* member. */
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/* TODO: set pointer to correct ioctl on a per team member
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* bases to make this more efficient. that is, once
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* we determine the correct ioctl, we will always
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* call it and not the others for that team
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* member.
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*/
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/*
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* We cannot assume that SIOCGMIIPHY will also read a
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/* We cannot assume that SIOCGMIIPHY will also read a
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* register; not all network drivers (e.g., e100)
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* support that.
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*/
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@ -476,8 +472,7 @@ static int bond_check_dev_link(struct bonding *bond,
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}
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}
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/*
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* If reporting, report that either there's no dev->do_ioctl,
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/* If reporting, report that either there's no dev->do_ioctl,
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* or both SIOCGMIIREG and get_link failed (meaning that we
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* cannot report link status). If not reporting, pretend
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* we're ok.
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@ -487,9 +482,7 @@ static int bond_check_dev_link(struct bonding *bond,
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/*----------------------------- Multicast list ------------------------------*/
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/*
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* Push the promiscuity flag down to appropriate slaves
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*/
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/* Push the promiscuity flag down to appropriate slaves */
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static int bond_set_promiscuity(struct bonding *bond, int inc)
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{
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struct list_head *iter;
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@ -512,9 +505,7 @@ static int bond_set_promiscuity(struct bonding *bond, int inc)
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return err;
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}
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/*
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* Push the allmulti flag down to all slaves
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*/
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/* Push the allmulti flag down to all slaves */
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static int bond_set_allmulti(struct bonding *bond, int inc)
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{
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struct list_head *iter;
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@ -537,8 +528,7 @@ static int bond_set_allmulti(struct bonding *bond, int inc)
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return err;
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}
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/*
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* Retrieve the list of registered multicast addresses for the bonding
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/* Retrieve the list of registered multicast addresses for the bonding
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* device and retransmit an IGMP JOIN request to the current active
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* slave.
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*/
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@ -560,8 +550,7 @@ static void bond_resend_igmp_join_requests_delayed(struct work_struct *work)
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rtnl_unlock();
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}
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/* Flush bond's hardware addresses from slave
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*/
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/* Flush bond's hardware addresses from slave */
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static void bond_hw_addr_flush(struct net_device *bond_dev,
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struct net_device *slave_dev)
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{
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@ -632,8 +621,7 @@ static void bond_set_dev_addr(struct net_device *bond_dev,
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call_netdevice_notifiers(NETDEV_CHANGEADDR, bond_dev);
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}
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/*
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* bond_do_fail_over_mac
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/* bond_do_fail_over_mac
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*
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* Perform special MAC address swapping for fail_over_mac settings
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*
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@ -653,8 +641,7 @@ static void bond_do_fail_over_mac(struct bonding *bond,
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bond_set_dev_addr(bond->dev, new_active->dev);
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break;
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case BOND_FOM_FOLLOW:
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/*
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* if new_active && old_active, swap them
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/* if new_active && old_active, swap them
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* if just old_active, do nothing (going to no active slave)
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* if just new_active, set new_active to bond's MAC
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*/
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@ -863,7 +850,8 @@ void bond_change_active_slave(struct bonding *bond, struct slave *new_active)
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/* resend IGMP joins since active slave has changed or
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* all were sent on curr_active_slave.
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* resend only if bond is brought up with the affected
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* bonding modes and the retransmission is enabled */
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* bonding modes and the retransmission is enabled
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*/
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if (netif_running(bond->dev) && (bond->params.resend_igmp > 0) &&
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((bond_uses_primary(bond) && new_active) ||
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BOND_MODE(bond) == BOND_MODE_ROUNDROBIN)) {
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@ -1229,8 +1217,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
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slave_dev->name);
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}
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/*
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* Old ifenslave binaries are no longer supported. These can
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/* Old ifenslave binaries are no longer supported. These can
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* be identified with moderate accuracy by the state of the slave:
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* the current ifenslave will set the interface down prior to
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* enslaving it; the old ifenslave will not.
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@ -1302,7 +1289,8 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
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call_netdevice_notifiers(NETDEV_JOIN, slave_dev);
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/* If this is the first slave, then we need to set the master's hardware
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* address to be the same as the slave's. */
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* address to be the same as the slave's.
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*/
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if (!bond_has_slaves(bond) &&
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bond->dev->addr_assign_type == NET_ADDR_RANDOM)
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bond_set_dev_addr(bond->dev, slave_dev);
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@ -1315,8 +1303,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
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new_slave->bond = bond;
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new_slave->dev = slave_dev;
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/*
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* Set the new_slave's queue_id to be zero. Queue ID mapping
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/* Set the new_slave's queue_id to be zero. Queue ID mapping
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* is set via sysfs or module option if desired.
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*/
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new_slave->queue_id = 0;
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@ -1329,8 +1316,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
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goto err_free;
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}
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/*
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* Save slave's original ("permanent") mac address for modes
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/* Save slave's original ("permanent") mac address for modes
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* that need it, and for restoring it upon release, and then
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* set it to the master's address
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*/
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@ -1338,8 +1324,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
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if (!bond->params.fail_over_mac ||
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BOND_MODE(bond) != BOND_MODE_ACTIVEBACKUP) {
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/*
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* Set slave to master's mac address. The application already
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/* Set slave to master's mac address. The application already
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* set the master's mac address to that of the first slave
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*/
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memcpy(addr.sa_data, bond_dev->dev_addr, bond_dev->addr_len);
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@ -1425,8 +1410,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
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link_reporting = bond_check_dev_link(bond, slave_dev, 1);
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if ((link_reporting == -1) && !bond->params.arp_interval) {
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/*
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* miimon is set but a bonded network driver
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/* miimon is set but a bonded network driver
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* does not support ETHTOOL/MII and
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* arp_interval is not set. Note: if
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* use_carrier is enabled, we will never go
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@ -1626,8 +1610,7 @@ err_undo_flags:
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return res;
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}
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/*
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* Try to release the slave device <slave> from the bond device <master>
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/* Try to release the slave device <slave> from the bond device <master>
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* It is legal to access curr_active_slave without a lock because all the function
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* is RTNL-locked. If "all" is true it means that the function is being called
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* while destroying a bond interface and all slaves are being released.
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@ -1713,8 +1696,7 @@ static int __bond_release_one(struct net_device *bond_dev,
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if (all) {
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RCU_INIT_POINTER(bond->curr_active_slave, NULL);
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} else if (oldcurrent == slave) {
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/*
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* Note that we hold RTNL over this sequence, so there
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/* Note that we hold RTNL over this sequence, so there
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* is no concern that another slave add/remove event
|
||||
* will interfere.
|
||||
*/
|
||||
@ -1741,10 +1723,9 @@ static int __bond_release_one(struct net_device *bond_dev,
|
||||
netdev_info(bond_dev, "last VLAN challenged slave %s left bond %s - VLAN blocking is removed\n",
|
||||
slave_dev->name, bond_dev->name);
|
||||
|
||||
/* must do this from outside any spinlocks */
|
||||
vlan_vids_del_by_dev(slave_dev, bond_dev);
|
||||
|
||||
/* If the mode uses primary, then this cases was handled above by
|
||||
/* If the mode uses primary, then this case was handled above by
|
||||
* bond_change_active_slave(..., NULL)
|
||||
*/
|
||||
if (!bond_uses_primary(bond)) {
|
||||
@ -1784,7 +1765,7 @@ static int __bond_release_one(struct net_device *bond_dev,
|
||||
|
||||
bond_free_slave(slave);
|
||||
|
||||
return 0; /* deletion OK */
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* A wrapper used because of ndo_del_link */
|
||||
@ -1793,10 +1774,9 @@ int bond_release(struct net_device *bond_dev, struct net_device *slave_dev)
|
||||
return __bond_release_one(bond_dev, slave_dev, false);
|
||||
}
|
||||
|
||||
/*
|
||||
* First release a slave and then destroy the bond if no more slaves are left.
|
||||
* Must be under rtnl_lock when this function is called.
|
||||
*/
|
||||
/* First release a slave and then destroy the bond if no more slaves are left.
|
||||
* Must be under rtnl_lock when this function is called.
|
||||
*/
|
||||
static int bond_release_and_destroy(struct net_device *bond_dev,
|
||||
struct net_device *slave_dev)
|
||||
{
|
||||
@ -1819,7 +1799,6 @@ static int bond_info_query(struct net_device *bond_dev, struct ifbond *info)
|
||||
|
||||
info->bond_mode = BOND_MODE(bond);
|
||||
info->miimon = bond->params.miimon;
|
||||
|
||||
info->num_slaves = bond->slave_cnt;
|
||||
|
||||
return 0;
|
||||
@ -1882,9 +1861,7 @@ static int bond_miimon_inspect(struct bonding *bond)
|
||||
/*FALLTHRU*/
|
||||
case BOND_LINK_FAIL:
|
||||
if (link_state) {
|
||||
/*
|
||||
* recovered before downdelay expired
|
||||
*/
|
||||
/* recovered before downdelay expired */
|
||||
slave->link = BOND_LINK_UP;
|
||||
slave->last_link_up = jiffies;
|
||||
netdev_info(bond->dev, "link status up again after %d ms for interface %s\n",
|
||||
@ -2036,8 +2013,7 @@ do_failover:
|
||||
bond_set_carrier(bond);
|
||||
}
|
||||
|
||||
/*
|
||||
* bond_mii_monitor
|
||||
/* bond_mii_monitor
|
||||
*
|
||||
* Really a wrapper that splits the mii monitor into two phases: an
|
||||
* inspection, then (if inspection indicates something needs to be done)
|
||||
@ -2109,8 +2085,7 @@ static bool bond_has_this_ip(struct bonding *bond, __be32 ip)
|
||||
return ret;
|
||||
}
|
||||
|
||||
/*
|
||||
* We go to the (large) trouble of VLAN tagging ARP frames because
|
||||
/* We go to the (large) trouble of VLAN tagging ARP frames because
|
||||
* switches in VLAN mode (especially if ports are configured as
|
||||
* "native" to a VLAN) might not pass non-tagged frames.
|
||||
*/
|
||||
@ -2337,8 +2312,7 @@ int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond,
|
||||
|
||||
curr_active_slave = rcu_dereference(bond->curr_active_slave);
|
||||
|
||||
/*
|
||||
* Backup slaves won't see the ARP reply, but do come through
|
||||
/* Backup slaves won't see the ARP reply, but do come through
|
||||
* here for each ARP probe (so we swap the sip/tip to validate
|
||||
* the probe). In a "redundant switch, common router" type of
|
||||
* configuration, the ARP probe will (hopefully) travel from
|
||||
@ -2378,8 +2352,7 @@ static bool bond_time_in_interval(struct bonding *bond, unsigned long last_act,
|
||||
last_act + mod * delta_in_ticks + delta_in_ticks/2);
|
||||
}
|
||||
|
||||
/*
|
||||
* this function is called regularly to monitor each slave's link
|
||||
/* This function is called regularly to monitor each slave's link
|
||||
* ensuring that traffic is being sent and received when arp monitoring
|
||||
* is used in load-balancing mode. if the adapter has been dormant, then an
|
||||
* arp is transmitted to generate traffic. see activebackup_arp_monitor for
|
||||
@ -2488,8 +2461,7 @@ re_arm:
|
||||
msecs_to_jiffies(bond->params.arp_interval));
|
||||
}
|
||||
|
||||
/*
|
||||
* Called to inspect slaves for active-backup mode ARP monitor link state
|
||||
/* Called to inspect slaves for active-backup mode ARP monitor link state
|
||||
* changes. Sets new_link in slaves to specify what action should take
|
||||
* place for the slave. Returns 0 if no changes are found, >0 if changes
|
||||
* to link states must be committed.
|
||||
@ -2515,16 +2487,14 @@ static int bond_ab_arp_inspect(struct bonding *bond)
|
||||
continue;
|
||||
}
|
||||
|
||||
/*
|
||||
* Give slaves 2*delta after being enslaved or made
|
||||
/* Give slaves 2*delta after being enslaved or made
|
||||
* active. This avoids bouncing, as the last receive
|
||||
* times need a full ARP monitor cycle to be updated.
|
||||
*/
|
||||
if (bond_time_in_interval(bond, slave->last_link_up, 2))
|
||||
continue;
|
||||
|
||||
/*
|
||||
* Backup slave is down if:
|
||||
/* Backup slave is down if:
|
||||
* - No current_arp_slave AND
|
||||
* - more than 3*delta since last receive AND
|
||||
* - the bond has an IP address
|
||||
@ -2543,8 +2513,7 @@ static int bond_ab_arp_inspect(struct bonding *bond)
|
||||
commit++;
|
||||
}
|
||||
|
||||
/*
|
||||
* Active slave is down if:
|
||||
/* Active slave is down if:
|
||||
* - more than 2*delta since transmitting OR
|
||||
* - (more than 2*delta since receive AND
|
||||
* the bond has an IP address)
|
||||
@ -2561,8 +2530,7 @@ static int bond_ab_arp_inspect(struct bonding *bond)
|
||||
return commit;
|
||||
}
|
||||
|
||||
/*
|
||||
* Called to commit link state changes noted by inspection step of
|
||||
/* Called to commit link state changes noted by inspection step of
|
||||
* active-backup mode ARP monitor.
|
||||
*
|
||||
* Called with RTNL hold.
|
||||
@ -2639,8 +2607,7 @@ do_failover:
|
||||
bond_set_carrier(bond);
|
||||
}
|
||||
|
||||
/*
|
||||
* Send ARP probes for active-backup mode ARP monitor.
|
||||
/* Send ARP probes for active-backup mode ARP monitor.
|
||||
*
|
||||
* Called with rcu_read_lock held.
|
||||
*/
|
||||
@ -2782,9 +2749,7 @@ re_arm:
|
||||
|
||||
/*-------------------------- netdev event handling --------------------------*/
|
||||
|
||||
/*
|
||||
* Change device name
|
||||
*/
|
||||
/* Change device name */
|
||||
static int bond_event_changename(struct bonding *bond)
|
||||
{
|
||||
bond_remove_proc_entry(bond);
|
||||
@ -2861,13 +2826,9 @@ static int bond_slave_netdev_event(unsigned long event,
|
||||
}
|
||||
break;
|
||||
case NETDEV_DOWN:
|
||||
/*
|
||||
* ... Or is it this?
|
||||
*/
|
||||
break;
|
||||
case NETDEV_CHANGEMTU:
|
||||
/*
|
||||
* TODO: Should slaves be allowed to
|
||||
/* TODO: Should slaves be allowed to
|
||||
* independently alter their MTU? For
|
||||
* an active-backup bond, slaves need
|
||||
* not be the same type of device, so
|
||||
@ -2916,8 +2877,7 @@ static int bond_slave_netdev_event(unsigned long event,
|
||||
return NOTIFY_DONE;
|
||||
}
|
||||
|
||||
/*
|
||||
* bond_netdev_event: handle netdev notifier chain events.
|
||||
/* bond_netdev_event: handle netdev notifier chain events.
|
||||
*
|
||||
* This function receives events for the netdev chain. The caller (an
|
||||
* ioctl handler calling blocking_notifier_call_chain) holds the necessary
|
||||
@ -3187,8 +3147,7 @@ static int bond_do_ioctl(struct net_device *bond_dev, struct ifreq *ifr, int cmd
|
||||
mii->phy_id = 0;
|
||||
/* Fall Through */
|
||||
case SIOCGMIIREG:
|
||||
/*
|
||||
* We do this again just in case we were called by SIOCGMIIREG
|
||||
/* We do this again just in case we were called by SIOCGMIIREG
|
||||
* instead of SIOCGMIIPHY.
|
||||
*/
|
||||
mii = if_mii(ifr);
|
||||
@ -3229,7 +3188,6 @@ static int bond_do_ioctl(struct net_device *bond_dev, struct ifreq *ifr, int cmd
|
||||
|
||||
return res;
|
||||
default:
|
||||
/* Go on */
|
||||
break;
|
||||
}
|
||||
|
||||
@ -3291,7 +3249,6 @@ static void bond_set_rx_mode(struct net_device *bond_dev)
|
||||
struct list_head *iter;
|
||||
struct slave *slave;
|
||||
|
||||
|
||||
rcu_read_lock();
|
||||
if (bond_uses_primary(bond)) {
|
||||
slave = rcu_dereference(bond->curr_active_slave);
|
||||
@ -3329,8 +3286,7 @@ static int bond_neigh_init(struct neighbour *n)
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
/*
|
||||
* Assign slave's neigh_cleanup to neighbour in case cleanup is called
|
||||
/* Assign slave's neigh_cleanup to neighbour in case cleanup is called
|
||||
* after the last slave has been detached. Assumes that all slaves
|
||||
* utilize the same neigh_cleanup (true at this writing as only user
|
||||
* is ipoib).
|
||||
@ -3343,8 +3299,7 @@ static int bond_neigh_init(struct neighbour *n)
|
||||
return parms.neigh_setup(n);
|
||||
}
|
||||
|
||||
/*
|
||||
* The bonding ndo_neigh_setup is called at init time beofre any
|
||||
/* The bonding ndo_neigh_setup is called at init time beofre any
|
||||
* slave exists. So we must declare proxy setup function which will
|
||||
* be used at run time to resolve the actual slave neigh param setup.
|
||||
*
|
||||
@ -3362,9 +3317,7 @@ static int bond_neigh_setup(struct net_device *dev,
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Change the MTU of all of a master's slaves to match the master
|
||||
*/
|
||||
/* Change the MTU of all of a master's slaves to match the master */
|
||||
static int bond_change_mtu(struct net_device *bond_dev, int new_mtu)
|
||||
{
|
||||
struct bonding *bond = netdev_priv(bond_dev);
|
||||
@ -3417,8 +3370,7 @@ unwind:
|
||||
return res;
|
||||
}
|
||||
|
||||
/*
|
||||
* Change HW address
|
||||
/* Change HW address
|
||||
*
|
||||
* Note that many devices must be down to change the HW address, and
|
||||
* downing the master releases all slaves. We can make bonds full of
|
||||
@ -3588,8 +3540,7 @@ static int bond_xmit_roundrobin(struct sk_buff *skb, struct net_device *bond_dev
|
||||
return NETDEV_TX_OK;
|
||||
}
|
||||
|
||||
/*
|
||||
* in active-backup mode, we know that bond->curr_active_slave is always valid if
|
||||
/* In active-backup mode, we know that bond->curr_active_slave is always valid if
|
||||
* the bond has a usable interface.
|
||||
*/
|
||||
static int bond_xmit_activebackup(struct sk_buff *skb, struct net_device *bond_dev)
|
||||
@ -3651,9 +3602,7 @@ static int bond_xmit_broadcast(struct sk_buff *skb, struct net_device *bond_dev)
|
||||
|
||||
/*------------------------- Device initialization ---------------------------*/
|
||||
|
||||
/*
|
||||
* Lookup the slave that corresponds to a qid
|
||||
*/
|
||||
/* Lookup the slave that corresponds to a qid */
|
||||
static inline int bond_slave_override(struct bonding *bond,
|
||||
struct sk_buff *skb)
|
||||
{
|
||||
@ -3682,17 +3631,14 @@ static inline int bond_slave_override(struct bonding *bond,
|
||||
static u16 bond_select_queue(struct net_device *dev, struct sk_buff *skb,
|
||||
void *accel_priv, select_queue_fallback_t fallback)
|
||||
{
|
||||
/*
|
||||
* This helper function exists to help dev_pick_tx get the correct
|
||||
/* This helper function exists to help dev_pick_tx get the correct
|
||||
* destination queue. Using a helper function skips a call to
|
||||
* skb_tx_hash and will put the skbs in the queue we expect on their
|
||||
* way down to the bonding driver.
|
||||
*/
|
||||
u16 txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : 0;
|
||||
|
||||
/*
|
||||
* Save the original txq to restore before passing to the driver
|
||||
*/
|
||||
/* Save the original txq to restore before passing to the driver */
|
||||
qdisc_skb_cb(skb)->slave_dev_queue_mapping = skb->queue_mapping;
|
||||
|
||||
if (unlikely(txq >= dev->real_num_tx_queues)) {
|
||||
@ -3740,8 +3686,7 @@ static netdev_tx_t bond_start_xmit(struct sk_buff *skb, struct net_device *dev)
|
||||
struct bonding *bond = netdev_priv(dev);
|
||||
netdev_tx_t ret = NETDEV_TX_OK;
|
||||
|
||||
/*
|
||||
* If we risk deadlock from transmitting this in the
|
||||
/* If we risk deadlock from transmitting this in the
|
||||
* netpoll path, tell netpoll to queue the frame for later tx
|
||||
*/
|
||||
if (unlikely(is_netpoll_tx_blocked(dev)))
|
||||
@ -3865,8 +3810,7 @@ void bond_setup(struct net_device *bond_dev)
|
||||
bond_dev->priv_flags |= IFF_BONDING | IFF_UNICAST_FLT;
|
||||
bond_dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING);
|
||||
|
||||
/* don't acquire bond device's netif_tx_lock when
|
||||
* transmitting */
|
||||
/* don't acquire bond device's netif_tx_lock when transmitting */
|
||||
bond_dev->features |= NETIF_F_LLTX;
|
||||
|
||||
/* By default, we declare the bond to be fully
|
||||
@ -3889,10 +3833,9 @@ void bond_setup(struct net_device *bond_dev)
|
||||
bond_dev->features |= bond_dev->hw_features;
|
||||
}
|
||||
|
||||
/*
|
||||
* Destroy a bonding device.
|
||||
* Must be under rtnl_lock when this function is called.
|
||||
*/
|
||||
/* Destroy a bonding device.
|
||||
* Must be under rtnl_lock when this function is called.
|
||||
*/
|
||||
static void bond_uninit(struct net_device *bond_dev)
|
||||
{
|
||||
struct bonding *bond = netdev_priv(bond_dev);
|
||||
@ -3920,9 +3863,7 @@ static int bond_check_params(struct bond_params *params)
|
||||
const struct bond_opt_value *valptr;
|
||||
int arp_all_targets_value;
|
||||
|
||||
/*
|
||||
* Convert string parameters.
|
||||
*/
|
||||
/* Convert string parameters. */
|
||||
if (mode) {
|
||||
bond_opt_initstr(&newval, mode);
|
||||
valptr = bond_opt_parse(bond_opt_get(BOND_OPT_MODE), &newval);
|
||||
@ -4099,9 +4040,9 @@ static int bond_check_params(struct bond_params *params)
|
||||
|
||||
for (arp_ip_count = 0, i = 0;
|
||||
(arp_ip_count < BOND_MAX_ARP_TARGETS) && arp_ip_target[i]; i++) {
|
||||
/* not complete check, but should be good enough to
|
||||
catch mistakes */
|
||||
__be32 ip;
|
||||
|
||||
/* not a complete check, but good enough to catch mistakes */
|
||||
if (!in4_pton(arp_ip_target[i], -1, (u8 *)&ip, -1, NULL) ||
|
||||
!bond_is_ip_target_ok(ip)) {
|
||||
pr_warn("Warning: bad arp_ip_target module parameter (%s), ARP monitoring will not be performed\n",
|
||||
@ -4284,9 +4225,7 @@ static void bond_set_lockdep_class(struct net_device *dev)
|
||||
dev->qdisc_tx_busylock = &bonding_tx_busylock_key;
|
||||
}
|
||||
|
||||
/*
|
||||
* Called from registration process
|
||||
*/
|
||||
/* Called from registration process */
|
||||
static int bond_init(struct net_device *bond_dev)
|
||||
{
|
||||
struct bonding *bond = netdev_priv(bond_dev);
|
||||
@ -4440,9 +4379,7 @@ static void __exit bonding_exit(void)
|
||||
unregister_pernet_subsys(&bond_net_ops);
|
||||
|
||||
#ifdef CONFIG_NET_POLL_CONTROLLER
|
||||
/*
|
||||
* Make sure we don't have an imbalance on our netpoll blocking
|
||||
*/
|
||||
/* Make sure we don't have an imbalance on our netpoll blocking */
|
||||
WARN_ON(atomic_read(&netpoll_block_tx));
|
||||
#endif
|
||||
}
|
||||
|
||||
@ -91,7 +91,6 @@ static struct net_device *bond_get_by_name(struct bond_net *bn, const char *ifna
|
||||
* creates and deletes entire bonds.
|
||||
*
|
||||
* The class parameter is ignored.
|
||||
*
|
||||
*/
|
||||
static ssize_t bonding_store_bonds(struct class *cls,
|
||||
struct class_attribute *attr,
|
||||
|
||||
@ -197,7 +197,8 @@ struct bonding {
|
||||
struct slave *);
|
||||
/* mode_lock is used for mode-specific locking needs, currently used by:
|
||||
* 3ad mode (4) - protect against running bond_3ad_unbind_slave() and
|
||||
* bond_3ad_state_machine_handler() concurrently.
|
||||
* bond_3ad_state_machine_handler() concurrently and also
|
||||
* the access to the state machine shared variables.
|
||||
* TLB mode (5) - to sync the use and modifications of its hash table
|
||||
* ALB mode (6) - to sync the use and modifications of its hash table
|
||||
*/
|
||||
|
||||
Loading…
Reference in New Issue
Block a user