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authorDavid S. Miller <davem@davemloft.net>2012-05-16 22:17:37 -0400
committerDavid S. Miller <davem@davemloft.net>2012-05-16 22:17:37 -0400
commit028940342a906db8da014a7603a0deddc2c323dd (patch)
tree688dbc38a3e218f2493d311b1d70a67668837347 /drivers/net/bonding
parentbe3eed2e96340d3c7a4d1ea1d63e7bd6095d1e34 (diff)
parent0e93b4b304ae052ba1bc73f6d34a68556fe93429 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'drivers/net/bonding')
-rw-r--r--drivers/net/bonding/bond_3ad.c18
-rw-r--r--drivers/net/bonding/bond_3ad.h2
-rw-r--r--drivers/net/bonding/bond_alb.c12
-rw-r--r--drivers/net/bonding/bond_main.c16
-rw-r--r--drivers/net/bonding/bonding.h2
5 files changed, 32 insertions, 18 deletions
diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index 793b00138275..3463b469e657 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c
@@ -2173,9 +2173,10 @@ re_arm:
2173 * received frames (loopback). Since only the payload is given to this 2173 * received frames (loopback). Since only the payload is given to this
2174 * function, it check for loopback. 2174 * function, it check for loopback.
2175 */ 2175 */
2176static void bond_3ad_rx_indication(struct lacpdu *lacpdu, struct slave *slave, u16 length) 2176static int bond_3ad_rx_indication(struct lacpdu *lacpdu, struct slave *slave, u16 length)
2177{ 2177{
2178 struct port *port; 2178 struct port *port;
2179 int ret = RX_HANDLER_ANOTHER;
2179 2180
2180 if (length >= sizeof(struct lacpdu)) { 2181 if (length >= sizeof(struct lacpdu)) {
2181 2182
@@ -2184,11 +2185,12 @@ static void bond_3ad_rx_indication(struct lacpdu *lacpdu, struct slave *slave, u
2184 if (!port->slave) { 2185 if (!port->slave) {
2185 pr_warning("%s: Warning: port of slave %s is uninitialized\n", 2186 pr_warning("%s: Warning: port of slave %s is uninitialized\n",
2186 slave->dev->name, slave->dev->master->name); 2187 slave->dev->name, slave->dev->master->name);
2187 return; 2188 return ret;
2188 } 2189 }
2189 2190
2190 switch (lacpdu->subtype) { 2191 switch (lacpdu->subtype) {
2191 case AD_TYPE_LACPDU: 2192 case AD_TYPE_LACPDU:
2193 ret = RX_HANDLER_CONSUMED;
2192 pr_debug("Received LACPDU on port %d\n", 2194 pr_debug("Received LACPDU on port %d\n",
2193 port->actor_port_number); 2195 port->actor_port_number);
2194 /* Protect against concurrent state machines */ 2196 /* Protect against concurrent state machines */
@@ -2198,6 +2200,7 @@ static void bond_3ad_rx_indication(struct lacpdu *lacpdu, struct slave *slave, u
2198 break; 2200 break;
2199 2201
2200 case AD_TYPE_MARKER: 2202 case AD_TYPE_MARKER:
2203 ret = RX_HANDLER_CONSUMED;
2201 // No need to convert fields to Little Endian since we don't use the marker's fields. 2204 // No need to convert fields to Little Endian since we don't use the marker's fields.
2202 2205
2203 switch (((struct bond_marker *)lacpdu)->tlv_type) { 2206 switch (((struct bond_marker *)lacpdu)->tlv_type) {
@@ -2219,6 +2222,7 @@ static void bond_3ad_rx_indication(struct lacpdu *lacpdu, struct slave *slave, u
2219 } 2222 }
2220 } 2223 }
2221 } 2224 }
2225 return ret;
2222} 2226}
2223 2227
2224/** 2228/**
@@ -2456,18 +2460,20 @@ out:
2456 return NETDEV_TX_OK; 2460 return NETDEV_TX_OK;
2457} 2461}
2458 2462
2459void bond_3ad_lacpdu_recv(struct sk_buff *skb, struct bonding *bond, 2463int bond_3ad_lacpdu_recv(struct sk_buff *skb, struct bonding *bond,
2460 struct slave *slave) 2464 struct slave *slave)
2461{ 2465{
2466 int ret = RX_HANDLER_ANOTHER;
2462 if (skb->protocol != PKT_TYPE_LACPDU) 2467 if (skb->protocol != PKT_TYPE_LACPDU)
2463 return; 2468 return ret;
2464 2469
2465 if (!pskb_may_pull(skb, sizeof(struct lacpdu))) 2470 if (!pskb_may_pull(skb, sizeof(struct lacpdu)))
2466 return; 2471 return ret;
2467 2472
2468 read_lock(&bond->lock); 2473 read_lock(&bond->lock);
2469 bond_3ad_rx_indication((struct lacpdu *) skb->data, slave, skb->len); 2474 ret = bond_3ad_rx_indication((struct lacpdu *) skb->data, slave, skb->len);
2470 read_unlock(&bond->lock); 2475 read_unlock(&bond->lock);
2476 return ret;
2471} 2477}
2472 2478
2473/* 2479/*
diff --git a/drivers/net/bonding/bond_3ad.h b/drivers/net/bonding/bond_3ad.h
index 235b2cc58b28..5ee7e3c45db7 100644
--- a/drivers/net/bonding/bond_3ad.h
+++ b/drivers/net/bonding/bond_3ad.h
@@ -274,7 +274,7 @@ void bond_3ad_adapter_duplex_changed(struct slave *slave);
274void bond_3ad_handle_link_change(struct slave *slave, char link); 274void bond_3ad_handle_link_change(struct slave *slave, char link);
275int bond_3ad_get_active_agg_info(struct bonding *bond, struct ad_info *ad_info); 275int bond_3ad_get_active_agg_info(struct bonding *bond, struct ad_info *ad_info);
276int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev); 276int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev);
277void bond_3ad_lacpdu_recv(struct sk_buff *skb, struct bonding *bond, 277int bond_3ad_lacpdu_recv(struct sk_buff *skb, struct bonding *bond,
278 struct slave *slave); 278 struct slave *slave);
279int bond_3ad_set_carrier(struct bonding *bond); 279int bond_3ad_set_carrier(struct bonding *bond);
280void bond_3ad_update_lacp_rate(struct bonding *bond); 280void bond_3ad_update_lacp_rate(struct bonding *bond);
diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index b4f1b4ac92c6..0f59c1564e53 100644
--- a/drivers/net/bonding/bond_alb.c
+++ b/drivers/net/bonding/bond_alb.c
@@ -342,26 +342,26 @@ static void rlb_update_entry_from_arp(struct bonding *bond, struct arp_pkt *arp)
342 _unlock_rx_hashtbl_bh(bond); 342 _unlock_rx_hashtbl_bh(bond);
343} 343}
344 344
345static void rlb_arp_recv(struct sk_buff *skb, struct bonding *bond, 345static int rlb_arp_recv(struct sk_buff *skb, struct bonding *bond,
346 struct slave *slave) 346 struct slave *slave)
347{ 347{
348 struct arp_pkt *arp; 348 struct arp_pkt *arp;
349 349
350 if (skb->protocol != cpu_to_be16(ETH_P_ARP)) 350 if (skb->protocol != cpu_to_be16(ETH_P_ARP))
351 return; 351 goto out;
352 352
353 arp = (struct arp_pkt *) skb->data; 353 arp = (struct arp_pkt *) skb->data;
354 if (!arp) { 354 if (!arp) {
355 pr_debug("Packet has no ARP data\n"); 355 pr_debug("Packet has no ARP data\n");
356 return; 356 goto out;
357 } 357 }
358 358
359 if (!pskb_may_pull(skb, arp_hdr_len(bond->dev))) 359 if (!pskb_may_pull(skb, arp_hdr_len(bond->dev)))
360 return; 360 goto out;
361 361
362 if (skb->len < sizeof(struct arp_pkt)) { 362 if (skb->len < sizeof(struct arp_pkt)) {
363 pr_debug("Packet is too small to be an ARP\n"); 363 pr_debug("Packet is too small to be an ARP\n");
364 return; 364 goto out;
365 } 365 }
366 366
367 if (arp->op_code == htons(ARPOP_REPLY)) { 367 if (arp->op_code == htons(ARPOP_REPLY)) {
@@ -369,6 +369,8 @@ static void rlb_arp_recv(struct sk_buff *skb, struct bonding *bond,
369 rlb_update_entry_from_arp(bond, arp); 369 rlb_update_entry_from_arp(bond, arp);
370 pr_debug("Server received an ARP Reply from client\n"); 370 pr_debug("Server received an ARP Reply from client\n");
371 } 371 }
372out:
373 return RX_HANDLER_ANOTHER;
372} 374}
373 375
374/* Caller must hold bond lock for read */ 376/* Caller must hold bond lock for read */
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index bbb004354bbd..2ee8cf9e8a3b 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1444,8 +1444,9 @@ static rx_handler_result_t bond_handle_frame(struct sk_buff **pskb)
1444 struct sk_buff *skb = *pskb; 1444 struct sk_buff *skb = *pskb;
1445 struct slave *slave; 1445 struct slave *slave;
1446 struct bonding *bond; 1446 struct bonding *bond;
1447 void (*recv_probe)(struct sk_buff *, struct bonding *, 1447 int (*recv_probe)(struct sk_buff *, struct bonding *,
1448 struct slave *); 1448 struct slave *);
1449 int ret = RX_HANDLER_ANOTHER;
1449 1450
1450 skb = skb_share_check(skb, GFP_ATOMIC); 1451 skb = skb_share_check(skb, GFP_ATOMIC);
1451 if (unlikely(!skb)) 1452 if (unlikely(!skb))
@@ -1464,8 +1465,12 @@ static rx_handler_result_t bond_handle_frame(struct sk_buff **pskb)
1464 struct sk_buff *nskb = skb_clone(skb, GFP_ATOMIC); 1465 struct sk_buff *nskb = skb_clone(skb, GFP_ATOMIC);
1465 1466
1466 if (likely(nskb)) { 1467 if (likely(nskb)) {
1467 recv_probe(nskb, bond, slave); 1468 ret = recv_probe(nskb, bond, slave);
1468 dev_kfree_skb(nskb); 1469 dev_kfree_skb(nskb);
1470 if (ret == RX_HANDLER_CONSUMED) {
1471 consume_skb(skb);
1472 return ret;
1473 }
1469 } 1474 }
1470 } 1475 }
1471 1476
@@ -1487,7 +1492,7 @@ static rx_handler_result_t bond_handle_frame(struct sk_buff **pskb)
1487 memcpy(eth_hdr(skb)->h_dest, bond->dev->dev_addr, ETH_ALEN); 1492 memcpy(eth_hdr(skb)->h_dest, bond->dev->dev_addr, ETH_ALEN);
1488 } 1493 }
1489 1494
1490 return RX_HANDLER_ANOTHER; 1495 return ret;
1491} 1496}
1492 1497
1493/* enslave device <slave> to bond device <master> */ 1498/* enslave device <slave> to bond device <master> */
@@ -2732,7 +2737,7 @@ static void bond_validate_arp(struct bonding *bond, struct slave *slave, __be32
2732 } 2737 }
2733} 2738}
2734 2739
2735static void bond_arp_rcv(struct sk_buff *skb, struct bonding *bond, 2740static int bond_arp_rcv(struct sk_buff *skb, struct bonding *bond,
2736 struct slave *slave) 2741 struct slave *slave)
2737{ 2742{
2738 struct arphdr *arp; 2743 struct arphdr *arp;
@@ -2740,7 +2745,7 @@ static void bond_arp_rcv(struct sk_buff *skb, struct bonding *bond,
2740 __be32 sip, tip; 2745 __be32 sip, tip;
2741 2746
2742 if (skb->protocol != __cpu_to_be16(ETH_P_ARP)) 2747 if (skb->protocol != __cpu_to_be16(ETH_P_ARP))
2743 return; 2748 return RX_HANDLER_ANOTHER;
2744 2749
2745 read_lock(&bond->lock); 2750 read_lock(&bond->lock);
2746 2751
@@ -2785,6 +2790,7 @@ static void bond_arp_rcv(struct sk_buff *skb, struct bonding *bond,
2785 2790
2786out_unlock: 2791out_unlock:
2787 read_unlock(&bond->lock); 2792 read_unlock(&bond->lock);
2793 return RX_HANDLER_ANOTHER;
2788} 2794}
2789 2795
2790/* 2796/*
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 9f2bae6616d3..4581aa5ccaba 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -218,7 +218,7 @@ struct bonding {
218 struct slave *primary_slave; 218 struct slave *primary_slave;
219 bool force_primary; 219 bool force_primary;
220 s32 slave_cnt; /* never change this value outside the attach/detach wrappers */ 220 s32 slave_cnt; /* never change this value outside the attach/detach wrappers */
221 void (*recv_probe)(struct sk_buff *, struct bonding *, 221 int (*recv_probe)(struct sk_buff *, struct bonding *,
222 struct slave *); 222 struct slave *);
223 rwlock_t lock; 223 rwlock_t lock;
224 rwlock_t curr_slave_lock; 224 rwlock_t curr_slave_lock;