diff options
| -rw-r--r-- | net/tipc/bcast.c | 6 | ||||
| -rw-r--r-- | net/tipc/bearer.c | 33 | ||||
| -rw-r--r-- | net/tipc/bearer.h | 6 | ||||
| -rw-r--r-- | net/tipc/discover.c | 17 | ||||
| -rw-r--r-- | net/tipc/eth_media.c | 14 | ||||
| -rw-r--r-- | net/tipc/ib_media.c | 14 | ||||
| -rw-r--r-- | net/tipc/link.c | 55 |
7 files changed, 28 insertions, 117 deletions
diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c index 0d44025..4c2a80b 100644 --- a/net/tipc/bcast.c +++ b/net/tipc/bcast.c @@ -621,12 +621,6 @@ static int tipc_bcbearer_send(struct sk_buff *buf, struct tipc_bearer *unused1, if (!p) break; /* No more bearers to try */ - if (tipc_bearer_blocked(p)) { - if (!s || tipc_bearer_blocked(s)) - continue; /* Can't use either bearer */ - b = s; - } - tipc_nmap_diff(&bcbearer->remains, &b->nodes, &bcbearer->remains_new); if (bcbearer->remains_new.count == bcbearer->remains.count) diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c index 3f9707a..c2101c0 100644 --- a/net/tipc/bearer.c +++ b/net/tipc/bearer.c @@ -275,31 +275,6 @@ void tipc_bearer_remove_dest(struct tipc_bearer *b_ptr, u32 dest) tipc_disc_remove_dest(b_ptr->link_req); } -/* - * Interrupt enabling new requests after bearer blocking: - * See bearer_send(). - */ -void tipc_continue(struct tipc_bearer *b) -{ - spin_lock_bh(&b->lock); - b->blocked = 0; - spin_unlock_bh(&b->lock); -} - -/* - * tipc_bearer_blocked - determines if bearer is currently blocked - */ -int tipc_bearer_blocked(struct tipc_bearer *b) -{ - int res; - - spin_lock_bh(&b->lock); - res = b->blocked; - spin_unlock_bh(&b->lock); - - return res; -} - /** * tipc_enable_bearer - enable bearer with the given name */ @@ -420,17 +395,16 @@ exit: } /** - * tipc_block_bearer - Block the bearer, and reset all its links + * tipc_reset_bearer - Reset all links established over this bearer */ -int tipc_block_bearer(struct tipc_bearer *b_ptr) +int tipc_reset_bearer(struct tipc_bearer *b_ptr) { struct tipc_link *l_ptr; struct tipc_link *temp_l_ptr; read_lock_bh(&tipc_net_lock); - pr_info("Blocking bearer <%s>\n", b_ptr->name); + pr_info("Resetting bearer <%s>\n", b_ptr->name); spin_lock_bh(&b_ptr->lock); - b_ptr->blocked = 1; list_for_each_entry_safe(l_ptr, temp_l_ptr, &b_ptr->links, link_list) { struct tipc_node *n_ptr = l_ptr->owner; @@ -456,7 +430,6 @@ static void bearer_disable(struct tipc_bearer *b_ptr) pr_info("Disabling bearer <%s>\n", b_ptr->name); spin_lock_bh(&b_ptr->lock); - b_ptr->blocked = 1; b_ptr->media->disable_media(b_ptr); list_for_each_entry_safe(l_ptr, temp_l_ptr, &b_ptr->links, link_list) { tipc_link_delete(l_ptr); diff --git a/net/tipc/bearer.h b/net/tipc/bearer.h index e5e04be..cc780bb 100644 --- a/net/tipc/bearer.h +++ b/net/tipc/bearer.h @@ -108,7 +108,6 @@ struct tipc_media { * struct tipc_bearer - TIPC bearer structure * @usr_handle: pointer to additional media-specific information about bearer * @mtu: max packet size bearer can support - * @blocked: non-zero if bearer is blocked * @lock: spinlock for controlling access to bearer * @addr: media-specific address associated with bearer * @name: bearer name (format = media:interface) @@ -130,7 +129,6 @@ struct tipc_media { struct tipc_bearer { void *usr_handle; /* initalized by media */ u32 mtu; /* initalized by media */ - int blocked; /* initalized by media */ struct tipc_media_addr addr; /* initalized by media */ char name[TIPC_MAX_BEARER_NAME]; spinlock_t lock; @@ -163,8 +161,7 @@ int tipc_register_media(struct tipc_media *m_ptr); void tipc_recv_msg(struct sk_buff *buf, struct tipc_bearer *tb_ptr); -int tipc_block_bearer(struct tipc_bearer *b_ptr); -void tipc_continue(struct tipc_bearer *tb_ptr); +int tipc_reset_bearer(struct tipc_bearer *b_ptr); int tipc_enable_bearer(const char *bearer_name, u32 disc_domain, u32 priority); int tipc_disable_bearer(const char *name); @@ -194,7 +191,6 @@ void tipc_bearer_remove_dest(struct tipc_bearer *b_ptr, u32 dest); struct tipc_bearer *tipc_bearer_find(const char *name); struct tipc_bearer *tipc_bearer_find_interface(const char *if_name); struct tipc_media *tipc_media_find(const char *name); -int tipc_bearer_blocked(struct tipc_bearer *b_ptr); void tipc_bearer_stop(void); /** diff --git a/net/tipc/discover.c b/net/tipc/discover.c index ecc758c..bc849f1 100644 --- a/net/tipc/discover.c +++ b/net/tipc/discover.c @@ -239,7 +239,7 @@ void tipc_disc_recv_msg(struct sk_buff *buf, struct tipc_bearer *b_ptr) /* Accept discovery message & send response, if necessary */ link_fully_up = link_working_working(link); - if ((type == DSC_REQ_MSG) && !link_fully_up && !b_ptr->blocked) { + if ((type == DSC_REQ_MSG) && !link_fully_up) { rbuf = tipc_disc_init_msg(DSC_RESP_MSG, orig, b_ptr); if (rbuf) { tipc_bearer_send(b_ptr, rbuf, &media_addr); @@ -288,16 +288,6 @@ void tipc_disc_remove_dest(struct tipc_link_req *req) } /** - * disc_send_msg - send link setup request message - * @req: ptr to link request structure - */ -static void disc_send_msg(struct tipc_link_req *req) -{ - if (!req->bearer->blocked) - tipc_bearer_send(req->bearer, req->buf, &req->dest); -} - -/** * disc_timeout - send a periodic link setup request * @req: ptr to link request structure * @@ -322,7 +312,8 @@ static void disc_timeout(struct tipc_link_req *req) * hold at fast polling rate if don't have any associated nodes, * otherwise hold at slow polling rate */ - disc_send_msg(req); + tipc_bearer_send(req->bearer, req->buf, &req->dest); + req->timer_intv *= 2; if (req->num_nodes) @@ -368,7 +359,7 @@ int tipc_disc_create(struct tipc_bearer *b_ptr, struct tipc_media_addr *dest, k_init_timer(&req->timer, (Handler)disc_timeout, (unsigned long)req); k_start_timer(&req->timer, req->timer_intv); b_ptr->link_req = req; - disc_send_msg(req); + tipc_bearer_send(req->bearer, req->buf, &req->dest); return 0; } diff --git a/net/tipc/eth_media.c b/net/tipc/eth_media.c index f80d59f..1e3c332 100644 --- a/net/tipc/eth_media.c +++ b/net/tipc/eth_media.c @@ -199,7 +199,6 @@ static int enable_media(struct tipc_bearer *tb_ptr) tb_ptr->bcast_addr.media_id = TIPC_MEDIA_TYPE_ETH; tb_ptr->bcast_addr.broadcast = 1; tb_ptr->mtu = dev->mtu; - tb_ptr->blocked = 0; eth_media_addr_set(tb_ptr, &tb_ptr->addr, (char *)dev->dev_addr); return 0; } @@ -263,20 +262,11 @@ static int recv_notification(struct notifier_block *nb, unsigned long evt, switch (evt) { case NETDEV_CHANGE: if (netif_carrier_ok(dev)) - tipc_continue(eb_ptr->bearer); - else - tipc_block_bearer(eb_ptr->bearer); - break; - case NETDEV_UP: - tipc_continue(eb_ptr->bearer); - break; + break; case NETDEV_DOWN: - tipc_block_bearer(eb_ptr->bearer); - break; case NETDEV_CHANGEMTU: case NETDEV_CHANGEADDR: - tipc_block_bearer(eb_ptr->bearer); - tipc_continue(eb_ptr->bearer); + tipc_reset_bearer(eb_ptr->bearer); break; case NETDEV_UNREGISTER: case NETDEV_CHANGENAME: diff --git a/net/tipc/ib_media.c b/net/tipc/ib_media.c index c139892..cbe7fe1 100644 --- a/net/tipc/ib_media.c +++ b/net/tipc/ib_media.c @@ -192,7 +192,6 @@ static int enable_media(struct tipc_bearer *tb_ptr) tb_ptr->bcast_addr.media_id = TIPC_MEDIA_TYPE_IB; tb_ptr->bcast_addr.broadcast = 1; tb_ptr->mtu = dev->mtu; - tb_ptr->blocked = 0; ib_media_addr_set(tb_ptr, &tb_ptr->addr, (char *)dev->dev_addr); return 0; } @@ -256,20 +255,11 @@ static int recv_notification(struct notifier_block *nb, unsigned long evt, switch (evt) { case NETDEV_CHANGE: if (netif_carrier_ok(dev)) - tipc_continue(ib_ptr->bearer); - else - tipc_block_bearer(ib_ptr->bearer); - break; - case NETDEV_UP: - tipc_continue(ib_ptr->bearer); - break; + break; case NETDEV_DOWN: - tipc_block_bearer(ib_ptr->bearer); - break; case NETDEV_CHANGEMTU: case NETDEV_CHANGEADDR: - tipc_block_bearer(ib_ptr->bearer); - tipc_continue(ib_ptr->bearer); + tipc_reset_bearer(ib_ptr->bearer); break; case NETDEV_UNREGISTER: case NETDEV_CHANGENAME: diff --git a/net/tipc/link.c b/net/tipc/link.c index 69cd9bf..fd340ad 100644 --- a/net/tipc/link.c +++ b/net/tipc/link.c @@ -790,8 +790,7 @@ int tipc_link_send_buf(struct tipc_link *l_ptr, struct sk_buff *buf) return link_send_long_buf(l_ptr, buf); /* Packet can be queued or sent. */ - if (likely(!tipc_bearer_blocked(l_ptr->b_ptr) && - !link_congested(l_ptr))) { + if (likely(!link_congested(l_ptr))) { link_add_to_outqueue(l_ptr, buf, msg); tipc_bearer_send(l_ptr->b_ptr, buf, &l_ptr->media_addr); @@ -957,14 +956,13 @@ static int link_send_buf_fast(struct tipc_link *l_ptr, struct sk_buff *buf, if (likely(!link_congested(l_ptr))) { if (likely(msg_size(msg) <= l_ptr->max_pkt)) { - if (likely(!tipc_bearer_blocked(l_ptr->b_ptr))) { - link_add_to_outqueue(l_ptr, buf, msg); - tipc_bearer_send(l_ptr->b_ptr, buf, - &l_ptr->media_addr); - l_ptr->unacked_window = 0; - return res; - } - } else + link_add_to_outqueue(l_ptr, buf, msg); + tipc_bearer_send(l_ptr->b_ptr, buf, + &l_ptr->media_addr); + l_ptr->unacked_window = 0; + return res; + } + else *used_max_pkt = l_ptr->max_pkt; } return tipc_link_send_buf(l_ptr, buf); /* All other cases */ @@ -1013,8 +1011,7 @@ exit: } /* Exit if link (or bearer) is congested */ - if (link_congested(l_ptr) || - tipc_bearer_blocked(l_ptr->b_ptr)) { + if (link_congested(l_ptr)) { res = link_schedule_port(l_ptr, sender->ref, res); goto exit; @@ -1281,9 +1278,6 @@ void tipc_link_push_queue(struct tipc_link *l_ptr) { u32 res; - if (tipc_bearer_blocked(l_ptr->b_ptr)) - return; - do { res = tipc_link_push_packet(l_ptr); } while (!res); @@ -1370,26 +1364,15 @@ void tipc_link_retransmit(struct tipc_link *l_ptr, struct sk_buff *buf, msg = buf_msg(buf); - if (tipc_bearer_blocked(l_ptr->b_ptr)) { - if (l_ptr->retransm_queue_size == 0) { - l_ptr->retransm_queue_head = msg_seqno(msg); - l_ptr->retransm_queue_size = retransmits; - } else { - pr_err("Unexpected retransmit on link %s (qsize=%d)\n", - l_ptr->name, l_ptr->retransm_queue_size); + /* Detect repeated retransmit failures */ + if (l_ptr->last_retransmitted == msg_seqno(msg)) { + if (++l_ptr->stale_count > 100) { + link_retransmit_failure(l_ptr, buf); + return; } - return; } else { - /* Detect repeated retransmit failures on unblocked bearer */ - if (l_ptr->last_retransmitted == msg_seqno(msg)) { - if (++l_ptr->stale_count > 100) { - link_retransmit_failure(l_ptr, buf); - return; - } - } else { - l_ptr->last_retransmitted = msg_seqno(msg); - l_ptr->stale_count = 1; - } + l_ptr->last_retransmitted = msg_seqno(msg); + l_ptr->stale_count = 1; } while (retransmits && (buf != l_ptr->next_out) && buf) { @@ -1861,12 +1844,6 @@ void tipc_link_send_proto_msg(struct tipc_link *l_ptr, u32 msg_typ, skb_copy_to_linear_data(buf, msg, sizeof(l_ptr->proto_msg)); buf->priority = TC_PRIO_CONTROL; - /* Defer message if bearer is already blocked */ - if (tipc_bearer_blocked(l_ptr->b_ptr)) { - l_ptr->proto_msg_queue = buf; - return; - } - tipc_bearer_send(l_ptr->b_ptr, buf, &l_ptr->media_addr); l_ptr->unacked_window = 0; kfree_skb(buf); |
