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author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2014-06-08 10:24:07 +0400 |
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committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2014-06-08 10:24:07 +0400 |
commit | a292241cccb7e20e8b997a9a44177e7c98141859 (patch) | |
tree | a0b0bb95e7dce3233a2d8b203f9e326cdec7a00e /drivers/net/bonding/bond_alb.c | |
parent | d49cb7aeebb974713f9f7ab2991352d3050b095b (diff) | |
parent | 68807a0c2015cb40df4869e16651f0ce5cc14d52 (diff) | |
download | linux-a292241cccb7e20e8b997a9a44177e7c98141859.tar.xz |
Merge branch 'next' into for-linus
Prepare input updates for 3.16.
Diffstat (limited to 'drivers/net/bonding/bond_alb.c')
-rw-r--r-- | drivers/net/bonding/bond_alb.c | 140 |
1 files changed, 58 insertions, 82 deletions
diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c index a2c47476804d..9f69e818b000 100644 --- a/drivers/net/bonding/bond_alb.c +++ b/drivers/net/bonding/bond_alb.c @@ -93,9 +93,8 @@ static inline u8 _simple_hash(const u8 *hash_start, int hash_size) int i; u8 hash = 0; - for (i = 0; i < hash_size; i++) { + for (i = 0; i < hash_size; i++) hash ^= hash_start[i]; - } return hash; } @@ -190,9 +189,8 @@ static int tlb_initialize(struct bonding *bond) bond_info->tx_hashtbl = new_hashtbl; - for (i = 0; i < TLB_HASH_TABLE_SIZE; i++) { + for (i = 0; i < TLB_HASH_TABLE_SIZE; i++) tlb_init_table_entry(&bond_info->tx_hashtbl[i], 0); - } _unlock_tx_hashtbl_bh(bond); @@ -264,9 +262,8 @@ static struct slave *__tlb_choose_channel(struct bonding *bond, u32 hash_index, hash_table[hash_index].next = next_index; hash_table[hash_index].prev = TLB_NULL_INDEX; - if (next_index != TLB_NULL_INDEX) { + if (next_index != TLB_NULL_INDEX) hash_table[next_index].prev = hash_index; - } slave_info->head = hash_index; slave_info->load += @@ -274,9 +271,8 @@ static struct slave *__tlb_choose_channel(struct bonding *bond, u32 hash_index, } } - if (assigned_slave) { + if (assigned_slave) hash_table[hash_index].tx_bytes += skb_len; - } return assigned_slave; } @@ -329,7 +325,7 @@ static void rlb_update_entry_from_arp(struct bonding *bond, struct arp_pkt *arp) _lock_rx_hashtbl_bh(bond); - hash_index = _simple_hash((u8*)&(arp->ip_src), sizeof(arp->ip_src)); + hash_index = _simple_hash((u8 *)&(arp->ip_src), sizeof(arp->ip_src)); client_info = &(bond_info->rx_hashtbl[hash_index]); if ((client_info->assigned) && @@ -337,7 +333,7 @@ static void rlb_update_entry_from_arp(struct bonding *bond, struct arp_pkt *arp) (client_info->ip_dst == arp->ip_src) && (!ether_addr_equal_64bits(client_info->mac_dst, arp->mac_src))) { /* update the clients MAC address */ - memcpy(client_info->mac_dst, arp->mac_src, ETH_ALEN); + ether_addr_copy(client_info->mac_dst, arp->mac_src); client_info->ntt = 1; bond_info->rx_ntt = 1; } @@ -451,9 +447,8 @@ static struct slave *__rlb_next_rx_slave(struct bonding *bond) */ static void rlb_teach_disabled_mac_on_primary(struct bonding *bond, u8 addr[]) { - if (!bond->curr_active_slave) { + if (!bond->curr_active_slave) return; - } if (!bond->alb_info.primary_is_promisc) { if (!dev_set_promiscuity(bond->curr_active_slave->dev, 1)) @@ -513,9 +508,8 @@ static void rlb_clear_slave(struct bonding *bond, struct slave *slave) write_lock_bh(&bond->curr_slave_lock); - if (slave != bond->curr_active_slave) { + if (slave != bond->curr_active_slave) rlb_teach_disabled_mac_on_primary(bond, slave->dev->dev_addr); - } write_unlock_bh(&bond->curr_slave_lock); } @@ -524,9 +518,8 @@ static void rlb_update_client(struct rlb_client_info *client_info) { int i; - if (!client_info->slave) { + if (!client_info->slave) return; - } for (i = 0; i < RLB_ARP_BURST_SIZE; i++) { struct sk_buff *skb; @@ -574,9 +567,8 @@ static void rlb_update_rx_clients(struct bonding *bond) client_info = &(bond_info->rx_hashtbl[hash_index]); if (client_info->ntt) { rlb_update_client(client_info); - if (bond_info->rlb_update_retry_counter == 0) { + if (bond_info->rlb_update_retry_counter == 0) client_info->ntt = 0; - } } } @@ -610,10 +602,10 @@ static void rlb_req_update_slave_clients(struct bonding *bond, struct slave *sla } } - // update the team's flag only after the whole iteration + /* update the team's flag only after the whole iteration */ if (ntt) { bond_info->rx_ntt = 1; - //fasten the change + /* fasten the change */ bond_info->rlb_update_retry_counter = RLB_UPDATE_RETRY; } @@ -677,9 +669,9 @@ static struct slave *rlb_choose_channel(struct sk_buff *skb, struct bonding *bon /* the entry is already assigned to this client */ if (!ether_addr_equal_64bits(arp->mac_dst, mac_bcast)) { /* update mac address from arp */ - memcpy(client_info->mac_dst, arp->mac_dst, ETH_ALEN); + ether_addr_copy(client_info->mac_dst, arp->mac_dst); } - memcpy(client_info->mac_src, arp->mac_src, ETH_ALEN); + ether_addr_copy(client_info->mac_src, arp->mac_src); assigned_slave = client_info->slave; if (assigned_slave) { @@ -719,8 +711,8 @@ static struct slave *rlb_choose_channel(struct sk_buff *skb, struct bonding *bon * will be updated with clients actual unicast mac address * upon receiving an arp reply. */ - memcpy(client_info->mac_dst, arp->mac_dst, ETH_ALEN); - memcpy(client_info->mac_src, arp->mac_src, ETH_ALEN); + ether_addr_copy(client_info->mac_dst, arp->mac_dst); + ether_addr_copy(client_info->mac_src, arp->mac_src); client_info->slave = assigned_slave; if (!ether_addr_equal_64bits(client_info->mac_dst, mac_bcast)) { @@ -730,7 +722,7 @@ static struct slave *rlb_choose_channel(struct sk_buff *skb, struct bonding *bon client_info->ntt = 0; } - if (!vlan_get_tag(skb, &client_info->vlan_id)) + if (vlan_get_tag(skb, &client_info->vlan_id)) client_info->vlan_id = 0; if (!client_info->assigned) { @@ -770,9 +762,8 @@ static struct slave *rlb_arp_xmit(struct sk_buff *skb, struct bonding *bond) * rx channel */ tx_slave = rlb_choose_channel(skb, bond); - if (tx_slave) { - memcpy(arp->mac_src,tx_slave->dev->dev_addr, ETH_ALEN); - } + if (tx_slave) + ether_addr_copy(arp->mac_src, tx_slave->dev->dev_addr); pr_debug("Server sent ARP Reply packet\n"); } else if (arp->op_code == htons(ARPOP_REQUEST)) { /* Create an entry in the rx_hashtbl for this client as a @@ -824,9 +815,8 @@ static void rlb_rebalance(struct bonding *bond) } /* update the team's flag only after the whole iteration */ - if (ntt) { + if (ntt) bond_info->rx_ntt = 1; - } _unlock_rx_hashtbl_bh(bond); } @@ -923,7 +913,7 @@ static void rlb_src_link(struct bonding *bond, u32 ip_src_hash, u32 ip_dst_hash) static void rlb_purge_src_ip(struct bonding *bond, struct arp_pkt *arp) { struct alb_bond_info *bond_info = &(BOND_ALB_INFO(bond)); - u32 ip_src_hash = _simple_hash((u8*)&(arp->ip_src), sizeof(arp->ip_src)); + u32 ip_src_hash = _simple_hash((u8 *)&(arp->ip_src), sizeof(arp->ip_src)); u32 index; _lock_rx_hashtbl_bh(bond); @@ -957,9 +947,8 @@ static int rlb_initialize(struct bonding *bond) bond_info->rx_hashtbl_used_head = RLB_NULL_INDEX; - for (i = 0; i < RLB_HASH_TABLE_SIZE; i++) { + for (i = 0; i < RLB_HASH_TABLE_SIZE; i++) rlb_init_table_entry(bond_info->rx_hashtbl + i); - } _unlock_rx_hashtbl_bh(bond); @@ -1014,9 +1003,9 @@ static void alb_send_lp_vid(struct slave *slave, u8 mac_addr[], char *data; memset(&pkt, 0, size); - memcpy(pkt.mac_dst, mac_addr, ETH_ALEN); - memcpy(pkt.mac_src, mac_addr, ETH_ALEN); - pkt.type = cpu_to_be16(ETH_P_LOOP); + ether_addr_copy(pkt.mac_dst, mac_addr); + ether_addr_copy(pkt.mac_src, mac_addr); + pkt.type = cpu_to_be16(ETH_P_LOOPBACK); skb = dev_alloc_skb(size); if (!skb) @@ -1097,7 +1086,7 @@ static void alb_swap_mac_addr(struct slave *slave1, struct slave *slave2) { u8 tmp_mac_addr[ETH_ALEN]; - memcpy(tmp_mac_addr, slave1->dev->dev_addr, ETH_ALEN); + ether_addr_copy(tmp_mac_addr, slave1->dev->dev_addr); alb_set_slave_mac_addr(slave1, slave2->dev->dev_addr); alb_set_slave_mac_addr(slave2, tmp_mac_addr); @@ -1254,9 +1243,9 @@ static int alb_handle_addr_collision_on_attach(struct bonding *bond, struct slav if (free_mac_slave) { alb_set_slave_mac_addr(slave, free_mac_slave->perm_hwaddr); - pr_warning("%s: Warning: the hw address of slave %s is in use by the bond; giving it the hw address of %s\n", - bond->dev->name, slave->dev->name, - free_mac_slave->dev->name); + pr_warn("%s: Warning: the hw address of slave %s is in use by the bond; giving it the hw address of %s\n", + bond->dev->name, slave->dev->name, + free_mac_slave->dev->name); } else if (has_bond_addr) { pr_err("%s: Error: the hw address of slave %s is in use by the bond; couldn't find a slave with a free hw address to give it (this should not have happened)\n", @@ -1294,12 +1283,12 @@ static int alb_set_mac_address(struct bonding *bond, void *addr) bond_for_each_slave(bond, slave, iter) { /* save net_device's current hw address */ - memcpy(tmp_addr, slave->dev->dev_addr, ETH_ALEN); + ether_addr_copy(tmp_addr, slave->dev->dev_addr); res = dev_set_mac_address(slave->dev, addr); /* restore net_device's hw address */ - memcpy(slave->dev->dev_addr, tmp_addr, ETH_ALEN); + ether_addr_copy(slave->dev->dev_addr, tmp_addr); if (res) goto unwind; @@ -1315,9 +1304,9 @@ unwind: bond_for_each_slave(bond, rollback_slave, iter) { if (rollback_slave == slave) break; - memcpy(tmp_addr, rollback_slave->dev->dev_addr, ETH_ALEN); + ether_addr_copy(tmp_addr, rollback_slave->dev->dev_addr); dev_set_mac_address(rollback_slave->dev, &sa); - memcpy(rollback_slave->dev->dev_addr, tmp_addr, ETH_ALEN); + ether_addr_copy(rollback_slave->dev->dev_addr, tmp_addr); } return res; @@ -1330,9 +1319,8 @@ int bond_alb_initialize(struct bonding *bond, int rlb_enabled) int res; res = tlb_initialize(bond); - if (res) { + if (res) return res; - } if (rlb_enabled) { bond->alb_info.rlb_enabled = 1; @@ -1355,9 +1343,8 @@ void bond_alb_deinitialize(struct bonding *bond) tlb_deinitialize(bond); - if (bond_info->rlb_enabled) { + if (bond_info->rlb_enabled) rlb_deinitialize(bond); - } } int bond_alb_xmit(struct sk_buff *skb, struct net_device *bond_dev) @@ -1436,14 +1423,13 @@ int bond_alb_xmit(struct sk_buff *skb, struct net_device *bond_dev) break; } - hash_start = (char*)eth_data->h_dest; + hash_start = (char *)eth_data->h_dest; hash_size = ETH_ALEN; break; case ETH_P_ARP: do_tx_balance = 0; - if (bond_info->rlb_enabled) { + if (bond_info->rlb_enabled) tx_slave = rlb_arp_xmit(skb, bond); - } break; default: do_tx_balance = 0; @@ -1463,23 +1449,22 @@ int bond_alb_xmit(struct sk_buff *skb, struct net_device *bond_dev) if (tx_slave && SLAVE_IS_OK(tx_slave)) { if (tx_slave != rcu_dereference(bond->curr_active_slave)) { - memcpy(eth_data->h_source, - tx_slave->dev->dev_addr, - ETH_ALEN); + ether_addr_copy(eth_data->h_source, + tx_slave->dev->dev_addr); } bond_dev_queue_xmit(bond, skb, tx_slave->dev); goto out; - } else { - if (tx_slave) { - _lock_tx_hashtbl(bond); - __tlb_clear_slave(bond, tx_slave, 0); - _unlock_tx_hashtbl(bond); - } + } + + if (tx_slave) { + _lock_tx_hashtbl(bond); + __tlb_clear_slave(bond, tx_slave, 0); + _unlock_tx_hashtbl(bond); } /* no suitable interface, frame not sent */ - kfree_skb(skb); + dev_kfree_skb_any(skb); out: return NETDEV_TX_OK; } @@ -1577,11 +1562,10 @@ void bond_alb_monitor(struct work_struct *work) --bond_info->rlb_update_delay_counter; } else { rlb_update_rx_clients(bond); - if (bond_info->rlb_update_retry_counter) { + if (bond_info->rlb_update_retry_counter) --bond_info->rlb_update_retry_counter; - } else { + else bond_info->rx_ntt = 0; - } } } } @@ -1598,23 +1582,20 @@ int bond_alb_init_slave(struct bonding *bond, struct slave *slave) int res; res = alb_set_slave_mac_addr(slave, slave->perm_hwaddr); - if (res) { + if (res) return res; - } res = alb_handle_addr_collision_on_attach(bond, slave); - if (res) { + if (res) return res; - } tlb_init_slave(slave); /* order a rebalance ASAP */ bond->alb_info.tx_rebalance_counter = BOND_TLB_REBALANCE_TICKS; - if (bond->alb_info.rlb_enabled) { + if (bond->alb_info.rlb_enabled) bond->alb_info.rlb_rebalance = 1; - } return 0; } @@ -1645,9 +1626,8 @@ void bond_alb_handle_link_change(struct bonding *bond, struct slave *slave, char if (link == BOND_LINK_DOWN) { tlb_clear_slave(bond, slave, 0); - if (bond->alb_info.rlb_enabled) { + if (bond->alb_info.rlb_enabled) rlb_clear_slave(bond, slave); - } } else if (link == BOND_LINK_UP) { /* order a rebalance ASAP */ bond_info->tx_rebalance_counter = BOND_TLB_REBALANCE_TICKS; @@ -1723,14 +1703,14 @@ void bond_alb_handle_active_change(struct bonding *bond, struct slave *new_slave struct sockaddr sa; u8 tmp_addr[ETH_ALEN]; - memcpy(tmp_addr, new_slave->dev->dev_addr, ETH_ALEN); + ether_addr_copy(tmp_addr, new_slave->dev->dev_addr); memcpy(sa.sa_data, bond->dev->dev_addr, bond->dev->addr_len); sa.sa_family = bond->dev->type; /* we don't care if it can't change its mac, best effort */ dev_set_mac_address(new_slave->dev, &sa); - memcpy(new_slave->dev->dev_addr, tmp_addr, ETH_ALEN); + ether_addr_copy(new_slave->dev->dev_addr, tmp_addr); } /* curr_active_slave must be set before calling alb_swap_mac_addr */ @@ -1759,14 +1739,12 @@ int bond_alb_set_mac_address(struct net_device *bond_dev, void *addr) struct slave *swap_slave; int res; - if (!is_valid_ether_addr(sa->sa_data)) { + if (!is_valid_ether_addr(sa->sa_data)) return -EADDRNOTAVAIL; - } res = alb_set_mac_address(bond, addr); - if (res) { + if (res) return res; - } memcpy(bond_dev->dev_addr, sa->sa_data, bond_dev->addr_len); @@ -1774,9 +1752,8 @@ int bond_alb_set_mac_address(struct net_device *bond_dev, void *addr) * Otherwise we'll need to pass the new address to it and handle * duplications. */ - if (!bond->curr_active_slave) { + if (!bond->curr_active_slave) return 0; - } swap_slave = bond_slave_has_mac(bond, bond_dev->dev_addr); @@ -1800,8 +1777,7 @@ int bond_alb_set_mac_address(struct net_device *bond_dev, void *addr) void bond_alb_clear_vlan(struct bonding *bond, unsigned short vlan_id) { - if (bond->alb_info.rlb_enabled) { + if (bond->alb_info.rlb_enabled) rlb_clear_vlan(bond, vlan_id); - } } |