mirror of https://gitee.com/openkylin/linux.git
Merge branch 'tipc-Sep17-2011' of git://openlinux.windriver.com/people/paulg/net-next
This commit is contained in:
David S. Miller
commit
46151ae817
111
net/tipc/bcast.c
111
net/tipc/bcast.c
|
|
@ -39,6 +39,7 @@
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#include "link.h"
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#include "port.h"
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#include "bcast.h"
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#include "name_distr.h"
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#define MAX_PKT_DEFAULT_MCAST 1500 /* bcast link max packet size (fixed) */
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@ -298,14 +299,9 @@ static void bclink_send_nack(struct tipc_node *n_ptr)
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msg_set_bcgap_to(msg, n_ptr->bclink.gap_to);
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msg_set_bcast_tag(msg, tipc_own_tag);
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if (tipc_bearer_send(&bcbearer->bearer, buf, NULL)) {
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bcl->stats.sent_nacks++;
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buf_discard(buf);
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} else {
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tipc_bearer_schedule(bcl->b_ptr, bcl);
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bcl->proto_msg_queue = buf;
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bcl->stats.bearer_congs++;
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}
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tipc_bearer_send(&bcbearer->bearer, buf, NULL);
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bcl->stats.sent_nacks++;
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buf_discard(buf);
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/*
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* Ensure we doesn't send another NACK msg to the node
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@ -426,20 +422,28 @@ int tipc_bclink_send_msg(struct sk_buff *buf)
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void tipc_bclink_recv_pkt(struct sk_buff *buf)
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{
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struct tipc_msg *msg = buf_msg(buf);
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struct tipc_node *node = tipc_node_find(msg_prevnode(msg));
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struct tipc_node *node;
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u32 next_in;
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u32 seqno;
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struct sk_buff *deferred;
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if (unlikely(!node || !tipc_node_is_up(node) || !node->bclink.supported ||
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(msg_mc_netid(msg) != tipc_net_id))) {
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buf_discard(buf);
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return;
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}
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/* Screen out unwanted broadcast messages */
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if (msg_mc_netid(msg) != tipc_net_id)
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goto exit;
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node = tipc_node_find(msg_prevnode(msg));
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if (unlikely(!node))
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goto exit;
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tipc_node_lock(node);
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if (unlikely(!node->bclink.supported))
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goto unlock;
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if (unlikely(msg_user(msg) == BCAST_PROTOCOL)) {
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if (msg_type(msg) != STATE_MSG)
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goto unlock;
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if (msg_destnode(msg) == tipc_own_addr) {
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tipc_node_lock(node);
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tipc_bclink_acknowledge(node, msg_bcast_ack(msg));
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tipc_node_unlock(node);
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spin_lock_bh(&bc_lock);
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@ -449,18 +453,18 @@ void tipc_bclink_recv_pkt(struct sk_buff *buf)
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msg_bcgap_to(msg));
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spin_unlock_bh(&bc_lock);
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} else {
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tipc_node_unlock(node);
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tipc_bclink_peek_nack(msg_destnode(msg),
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msg_bcast_tag(msg),
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msg_bcgap_after(msg),
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msg_bcgap_to(msg));
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}
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buf_discard(buf);
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return;
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goto exit;
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}
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tipc_node_lock(node);
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/* Handle in-sequence broadcast message */
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receive:
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deferred = node->bclink.deferred_head;
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next_in = mod(node->bclink.last_in + 1);
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seqno = msg_seqno(msg);
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@ -474,7 +478,10 @@ void tipc_bclink_recv_pkt(struct sk_buff *buf)
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}
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if (likely(msg_isdata(msg))) {
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tipc_node_unlock(node);
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tipc_port_recv_mcast(buf, NULL);
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if (likely(msg_mcast(msg)))
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tipc_port_recv_mcast(buf, NULL);
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else
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buf_discard(buf);
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} else if (msg_user(msg) == MSG_BUNDLER) {
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bcl->stats.recv_bundles++;
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bcl->stats.recv_bundled += msg_msgcnt(msg);
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@ -487,18 +494,22 @@ void tipc_bclink_recv_pkt(struct sk_buff *buf)
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bcl->stats.recv_fragmented++;
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tipc_node_unlock(node);
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tipc_net_route_msg(buf);
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} else if (msg_user(msg) == NAME_DISTRIBUTOR) {
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tipc_node_unlock(node);
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tipc_named_recv(buf);
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} else {
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tipc_node_unlock(node);
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tipc_net_route_msg(buf);
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buf_discard(buf);
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}
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buf = NULL;
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tipc_node_lock(node);
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deferred = node->bclink.deferred_head;
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if (deferred && (buf_seqno(deferred) == mod(next_in + 1))) {
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tipc_node_lock(node);
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buf = deferred;
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msg = buf_msg(buf);
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node->bclink.deferred_head = deferred->next;
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goto receive;
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}
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return;
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} else if (less(next_in, seqno)) {
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u32 gap_after = node->bclink.gap_after;
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u32 gap_to = node->bclink.gap_to;
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@ -513,6 +524,7 @@ void tipc_bclink_recv_pkt(struct sk_buff *buf)
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else if (less(gap_after, seqno) && less(seqno, gap_to))
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node->bclink.gap_to = seqno;
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}
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buf = NULL;
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if (bclink_ack_allowed(node->bclink.nack_sync)) {
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if (gap_to != gap_after)
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bclink_send_nack(node);
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@ -520,9 +532,11 @@ void tipc_bclink_recv_pkt(struct sk_buff *buf)
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}
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} else {
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bcl->stats.duplicates++;
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buf_discard(buf);
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}
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unlock:
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tipc_node_unlock(node);
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exit:
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buf_discard(buf);
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}
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u32 tipc_bclink_acks_missing(struct tipc_node *n_ptr)
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@ -535,10 +549,11 @@ u32 tipc_bclink_acks_missing(struct tipc_node *n_ptr)
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/**
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* tipc_bcbearer_send - send a packet through the broadcast pseudo-bearer
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*
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* Send through as many bearers as necessary to reach all nodes
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* that support TIPC multicasting.
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* Send packet over as many bearers as necessary to reach all nodes
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* that have joined the broadcast link.
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*
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* Returns 0 if packet sent successfully, non-zero if not
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* Returns 0 (packet sent successfully) under all circumstances,
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* since the broadcast link's pseudo-bearer never blocks
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*/
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static int tipc_bcbearer_send(struct sk_buff *buf,
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@ -547,7 +562,12 @@ static int tipc_bcbearer_send(struct sk_buff *buf,
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{
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int bp_index;
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/* Prepare buffer for broadcasting (if first time trying to send it) */
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/*
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* Prepare broadcast link message for reliable transmission,
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* if first time trying to send it;
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* preparation is skipped for broadcast link protocol messages
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* since they are sent in an unreliable manner and don't need it
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*/
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if (likely(!msg_non_seq(buf_msg(buf)))) {
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struct tipc_msg *msg;
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@ -596,18 +616,12 @@ static int tipc_bcbearer_send(struct sk_buff *buf,
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}
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if (bcbearer->remains_new.count == 0)
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return 0;
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break; /* all targets reached */
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bcbearer->remains = bcbearer->remains_new;
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}
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/*
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* Unable to reach all targets (indicate success, since currently
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* there isn't code in place to properly block & unblock the
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* pseudo-bearer used by the broadcast link)
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*/
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return TIPC_OK;
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return 0;
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}
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/**
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@ -667,27 +681,6 @@ void tipc_bcbearer_sort(void)
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spin_unlock_bh(&bc_lock);
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}
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/**
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* tipc_bcbearer_push - resolve bearer congestion
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*
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* Forces bclink to push out any unsent packets, until all packets are gone
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* or congestion reoccurs.
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* No locks set when function called
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*/
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void tipc_bcbearer_push(void)
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{
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struct tipc_bearer *b_ptr;
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spin_lock_bh(&bc_lock);
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b_ptr = &bcbearer->bearer;
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if (b_ptr->blocked) {
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b_ptr->blocked = 0;
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tipc_bearer_lock_push(b_ptr);
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}
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spin_unlock_bh(&bc_lock);
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}
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int tipc_bclink_stats(char *buf, const u32 buf_size)
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{
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@ -764,7 +757,7 @@ int tipc_bclink_init(void)
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bcbearer = kzalloc(sizeof(*bcbearer), GFP_ATOMIC);
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bclink = kzalloc(sizeof(*bclink), GFP_ATOMIC);
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if (!bcbearer || !bclink) {
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warn("Multicast link creation failed, no memory\n");
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warn("Broadcast link creation failed, no memory\n");
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kfree(bcbearer);
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bcbearer = NULL;
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kfree(bclink);
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@ -775,7 +768,7 @@ int tipc_bclink_init(void)
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INIT_LIST_HEAD(&bcbearer->bearer.cong_links);
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bcbearer->bearer.media = &bcbearer->media;
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bcbearer->media.send_msg = tipc_bcbearer_send;
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sprintf(bcbearer->media.name, "tipc-multicast");
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sprintf(bcbearer->media.name, "tipc-broadcast");
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bcl = &bclink->link;
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INIT_LIST_HEAD(&bcl->waiting_ports);
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|
|
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@ -101,6 +101,5 @@ int tipc_bclink_stats(char *stats_buf, const u32 buf_size);
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int tipc_bclink_reset_stats(void);
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int tipc_bclink_set_queue_limits(u32 limit);
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void tipc_bcbearer_sort(void);
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void tipc_bcbearer_push(void);
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#endif
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|
|
|
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|
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@ -385,13 +385,9 @@ static int bearer_push(struct tipc_bearer *b_ptr)
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|
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void tipc_bearer_lock_push(struct tipc_bearer *b_ptr)
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{
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int res;
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|
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spin_lock_bh(&b_ptr->lock);
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res = bearer_push(b_ptr);
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bearer_push(b_ptr);
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spin_unlock_bh(&b_ptr->lock);
|
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if (res)
|
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tipc_bcbearer_push();
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}
|
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|
||||
|
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|
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@ -608,6 +604,7 @@ int tipc_block_bearer(const char *name)
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info("Blocking bearer <%s>\n", name);
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spin_lock_bh(&b_ptr->lock);
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b_ptr->blocked = 1;
|
||||
list_splice_init(&b_ptr->cong_links, &b_ptr->links);
|
||||
list_for_each_entry_safe(l_ptr, temp_l_ptr, &b_ptr->links, link_list) {
|
||||
struct tipc_node *n_ptr = l_ptr->owner;
|
||||
|
||||
|
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@ -635,6 +632,7 @@ static void bearer_disable(struct tipc_bearer *b_ptr)
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|||
spin_lock_bh(&b_ptr->lock);
|
||||
b_ptr->blocked = 1;
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||||
b_ptr->media->disable_bearer(b_ptr);
|
||||
list_splice_init(&b_ptr->cong_links, &b_ptr->links);
|
||||
list_for_each_entry_safe(l_ptr, temp_l_ptr, &b_ptr->links, link_list) {
|
||||
tipc_link_delete(l_ptr);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -39,8 +39,8 @@
|
|||
|
||||
#include "bcast.h"
|
||||
|
||||
#define MAX_BEARERS 8
|
||||
#define MAX_MEDIA 4
|
||||
#define MAX_BEARERS 2
|
||||
#define MAX_MEDIA 2
|
||||
|
||||
/*
|
||||
* Identifiers of supported TIPC media types
|
||||
|
|
|
|||
|
|
@ -65,7 +65,6 @@ struct sk_buff *tipc_cfg_do_cmd(u32 orig_node, u16 cmd,
|
|||
const void *req_tlv_area, int req_tlv_space,
|
||||
int headroom);
|
||||
|
||||
void tipc_cfg_link_event(u32 addr, char *name, int up);
|
||||
int tipc_cfg_init(void);
|
||||
void tipc_cfg_stop(void);
|
||||
|
||||
|
|
|
|||
|
|
@ -159,12 +159,6 @@ void tipc_disc_recv_msg(struct sk_buff *buf, struct tipc_bearer *b_ptr)
|
|||
}
|
||||
tipc_node_lock(n_ptr);
|
||||
|
||||
/* Don't talk to neighbor during cleanup after last session */
|
||||
if (n_ptr->cleanup_required) {
|
||||
tipc_node_unlock(n_ptr);
|
||||
return;
|
||||
}
|
||||
|
||||
link = n_ptr->links[b_ptr->identity];
|
||||
|
||||
/* Create a link endpoint for this bearer, if necessary */
|
||||
|
|
|
|||
|
|
@ -2,7 +2,7 @@
|
|||
* net/tipc/eth_media.c: Ethernet bearer support for TIPC
|
||||
*
|
||||
* Copyright (c) 2001-2007, Ericsson AB
|
||||
* Copyright (c) 2005-2007, Wind River Systems
|
||||
* Copyright (c) 2005-2008, 2011, Wind River Systems
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
|
|
@ -37,7 +37,7 @@
|
|||
#include "core.h"
|
||||
#include "bearer.h"
|
||||
|
||||
#define MAX_ETH_BEARERS 2
|
||||
#define MAX_ETH_BEARERS MAX_BEARERS
|
||||
#define ETH_LINK_PRIORITY TIPC_DEF_LINK_PRI
|
||||
#define ETH_LINK_TOLERANCE TIPC_DEF_LINK_TOL
|
||||
#define ETH_LINK_WINDOW TIPC_DEF_LINK_WIN
|
||||
|
|
@ -144,31 +144,27 @@ static int enable_bearer(struct tipc_bearer *tb_ptr)
|
|||
|
||||
/* Find device with specified name */
|
||||
|
||||
read_lock(&dev_base_lock);
|
||||
for_each_netdev(&init_net, pdev) {
|
||||
if (!strncmp(pdev->name, driver_name, IFNAMSIZ)) {
|
||||
dev = pdev;
|
||||
dev_hold(dev);
|
||||
break;
|
||||
}
|
||||
}
|
||||
read_unlock(&dev_base_lock);
|
||||
if (!dev)
|
||||
return -ENODEV;
|
||||
|
||||
/* Find Ethernet bearer for device (or create one) */
|
||||
/* Create Ethernet bearer for device */
|
||||
|
||||
while ((eb_ptr != stop) && eb_ptr->dev && (eb_ptr->dev != dev))
|
||||
eb_ptr++;
|
||||
if (eb_ptr == stop)
|
||||
return -EDQUOT;
|
||||
if (!eb_ptr->dev) {
|
||||
eb_ptr->dev = dev;
|
||||
eb_ptr->tipc_packet_type.type = htons(ETH_P_TIPC);
|
||||
eb_ptr->tipc_packet_type.dev = dev;
|
||||
eb_ptr->tipc_packet_type.func = recv_msg;
|
||||
eb_ptr->tipc_packet_type.af_packet_priv = eb_ptr;
|
||||
INIT_LIST_HEAD(&(eb_ptr->tipc_packet_type.list));
|
||||
dev_hold(dev);
|
||||
dev_add_pack(&eb_ptr->tipc_packet_type);
|
||||
}
|
||||
eb_ptr->dev = dev;
|
||||
eb_ptr->tipc_packet_type.type = htons(ETH_P_TIPC);
|
||||
eb_ptr->tipc_packet_type.dev = dev;
|
||||
eb_ptr->tipc_packet_type.func = recv_msg;
|
||||
eb_ptr->tipc_packet_type.af_packet_priv = eb_ptr;
|
||||
INIT_LIST_HEAD(&(eb_ptr->tipc_packet_type.list));
|
||||
dev_add_pack(&eb_ptr->tipc_packet_type);
|
||||
|
||||
/* Associate TIPC bearer with Ethernet bearer */
|
||||
|
||||
|
|
|
|||
115
net/tipc/link.c
115
net/tipc/link.c
|
|
@ -332,15 +332,16 @@ struct link *tipc_link_create(struct tipc_node *n_ptr,
|
|||
|
||||
l_ptr->addr = peer;
|
||||
if_name = strchr(b_ptr->name, ':') + 1;
|
||||
sprintf(l_ptr->name, "%u.%u.%u:%s-%u.%u.%u:",
|
||||
sprintf(l_ptr->name, "%u.%u.%u:%s-%u.%u.%u:unknown",
|
||||
tipc_zone(tipc_own_addr), tipc_cluster(tipc_own_addr),
|
||||
tipc_node(tipc_own_addr),
|
||||
if_name,
|
||||
tipc_zone(peer), tipc_cluster(peer), tipc_node(peer));
|
||||
/* note: peer i/f is appended to link name by reset/activate */
|
||||
/* note: peer i/f name is updated by reset/activate message */
|
||||
memcpy(&l_ptr->media_addr, media_addr, sizeof(*media_addr));
|
||||
l_ptr->owner = n_ptr;
|
||||
l_ptr->checkpoint = 1;
|
||||
l_ptr->peer_session = INVALID_SESSION;
|
||||
l_ptr->b_ptr = b_ptr;
|
||||
link_set_supervision_props(l_ptr, b_ptr->media->tolerance);
|
||||
l_ptr->state = RESET_UNKNOWN;
|
||||
|
|
@ -536,9 +537,6 @@ void tipc_link_stop(struct link *l_ptr)
|
|||
l_ptr->proto_msg_queue = NULL;
|
||||
}
|
||||
|
||||
/* LINK EVENT CODE IS NOT SUPPORTED AT PRESENT */
|
||||
#define link_send_event(fcn, l_ptr, up) do { } while (0)
|
||||
|
||||
void tipc_link_reset(struct link *l_ptr)
|
||||
{
|
||||
struct sk_buff *buf;
|
||||
|
|
@ -596,10 +594,6 @@ void tipc_link_reset(struct link *l_ptr)
|
|||
l_ptr->fsm_msg_cnt = 0;
|
||||
l_ptr->stale_count = 0;
|
||||
link_reset_statistics(l_ptr);
|
||||
|
||||
link_send_event(tipc_cfg_link_event, l_ptr, 0);
|
||||
if (!in_own_cluster(l_ptr->addr))
|
||||
link_send_event(tipc_disc_link_event, l_ptr, 0);
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -608,9 +602,6 @@ static void link_activate(struct link *l_ptr)
|
|||
l_ptr->next_in_no = l_ptr->stats.recv_info = 1;
|
||||
tipc_node_link_up(l_ptr->owner, l_ptr);
|
||||
tipc_bearer_add_dest(l_ptr->b_ptr, l_ptr->addr);
|
||||
link_send_event(tipc_cfg_link_event, l_ptr, 1);
|
||||
if (!in_own_cluster(l_ptr->addr))
|
||||
link_send_event(tipc_disc_link_event, l_ptr, 1);
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -984,6 +975,51 @@ int tipc_link_send(struct sk_buff *buf, u32 dest, u32 selector)
|
|||
return res;
|
||||
}
|
||||
|
||||
/*
|
||||
* tipc_link_send_names - send name table entries to new neighbor
|
||||
*
|
||||
* Send routine for bulk delivery of name table messages when contact
|
||||
* with a new neighbor occurs. No link congestion checking is performed
|
||||
* because name table messages *must* be delivered. The messages must be
|
||||
* small enough not to require fragmentation.
|
||||
* Called without any locks held.
|
||||
*/
|
||||
|
||||
void tipc_link_send_names(struct list_head *message_list, u32 dest)
|
||||
{
|
||||
struct tipc_node *n_ptr;
|
||||
struct link *l_ptr;
|
||||
struct sk_buff *buf;
|
||||
struct sk_buff *temp_buf;
|
||||
|
||||
if (list_empty(message_list))
|
||||
return;
|
||||
|
||||
read_lock_bh(&tipc_net_lock);
|
||||
n_ptr = tipc_node_find(dest);
|
||||
if (n_ptr) {
|
||||
tipc_node_lock(n_ptr);
|
||||
l_ptr = n_ptr->active_links[0];
|
||||
if (l_ptr) {
|
||||
/* convert circular list to linear list */
|
||||
((struct sk_buff *)message_list->prev)->next = NULL;
|
||||
link_add_chain_to_outqueue(l_ptr,
|
||||
(struct sk_buff *)message_list->next, 0);
|
||||
tipc_link_push_queue(l_ptr);
|
||||
INIT_LIST_HEAD(message_list);
|
||||
}
|
||||
tipc_node_unlock(n_ptr);
|
||||
}
|
||||
read_unlock_bh(&tipc_net_lock);
|
||||
|
||||
/* discard the messages if they couldn't be sent */
|
||||
|
||||
list_for_each_safe(buf, temp_buf, ((struct sk_buff *)message_list)) {
|
||||
list_del((struct list_head *)buf);
|
||||
buf_discard(buf);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* link_send_buf_fast: Entry for data messages where the
|
||||
* destination link is known and the header is complete,
|
||||
|
|
@ -1031,9 +1067,6 @@ int tipc_send_buf_fast(struct sk_buff *buf, u32 destnode)
|
|||
u32 selector = msg_origport(buf_msg(buf)) & 1;
|
||||
u32 dummy;
|
||||
|
||||
if (destnode == tipc_own_addr)
|
||||
return tipc_port_recv_msg(buf);
|
||||
|
||||
read_lock_bh(&tipc_net_lock);
|
||||
n_ptr = tipc_node_find(destnode);
|
||||
if (likely(n_ptr)) {
|
||||
|
|
@ -1658,19 +1691,12 @@ void tipc_recv_msg(struct sk_buff *head, struct tipc_bearer *b_ptr)
|
|||
continue;
|
||||
}
|
||||
|
||||
/* Discard unicast link messages destined for another node */
|
||||
|
||||
if (unlikely(!msg_short(msg) &&
|
||||
(msg_destnode(msg) != tipc_own_addr)))
|
||||
goto cont;
|
||||
|
||||
/* Discard non-routeable messages destined for another node */
|
||||
|
||||
if (unlikely(!msg_isdata(msg) &&
|
||||
(msg_destnode(msg) != tipc_own_addr))) {
|
||||
if ((msg_user(msg) != CONN_MANAGER) &&
|
||||
(msg_user(msg) != MSG_FRAGMENTER))
|
||||
goto cont;
|
||||
}
|
||||
|
||||
/* Locate neighboring node that sent message */
|
||||
|
||||
n_ptr = tipc_node_find(msg_prevnode(msg));
|
||||
|
|
@ -1678,13 +1704,6 @@ void tipc_recv_msg(struct sk_buff *head, struct tipc_bearer *b_ptr)
|
|||
goto cont;
|
||||
tipc_node_lock(n_ptr);
|
||||
|
||||
/* Don't talk to neighbor during cleanup after last session */
|
||||
|
||||
if (n_ptr->cleanup_required) {
|
||||
tipc_node_unlock(n_ptr);
|
||||
goto cont;
|
||||
}
|
||||
|
||||
/* Locate unicast link endpoint that should handle message */
|
||||
|
||||
l_ptr = n_ptr->links[b_ptr->identity];
|
||||
|
|
@ -1693,6 +1712,20 @@ void tipc_recv_msg(struct sk_buff *head, struct tipc_bearer *b_ptr)
|
|||
goto cont;
|
||||
}
|
||||
|
||||
/* Verify that communication with node is currently allowed */
|
||||
|
||||
if ((n_ptr->block_setup & WAIT_PEER_DOWN) &&
|
||||
msg_user(msg) == LINK_PROTOCOL &&
|
||||
(msg_type(msg) == RESET_MSG ||
|
||||
msg_type(msg) == ACTIVATE_MSG) &&
|
||||
!msg_redundant_link(msg))
|
||||
n_ptr->block_setup &= ~WAIT_PEER_DOWN;
|
||||
|
||||
if (n_ptr->block_setup) {
|
||||
tipc_node_unlock(n_ptr);
|
||||
goto cont;
|
||||
}
|
||||
|
||||
/* Validate message sequence number info */
|
||||
|
||||
seq_no = msg_seqno(msg);
|
||||
|
|
@ -1923,6 +1956,12 @@ void tipc_link_send_proto_msg(struct link *l_ptr, u32 msg_typ, int probe_msg,
|
|||
|
||||
if (link_blocked(l_ptr))
|
||||
return;
|
||||
|
||||
/* Abort non-RESET send if communication with node is prohibited */
|
||||
|
||||
if ((l_ptr->owner->block_setup) && (msg_typ != RESET_MSG))
|
||||
return;
|
||||
|
||||
msg_set_type(msg, msg_typ);
|
||||
msg_set_net_plane(msg, l_ptr->b_ptr->net_plane);
|
||||
msg_set_bcast_ack(msg, mod(l_ptr->owner->bclink.last_in));
|
||||
|
|
@ -2051,9 +2090,19 @@ static void link_recv_proto_msg(struct link *l_ptr, struct sk_buff *buf)
|
|||
case RESET_MSG:
|
||||
if (!link_working_unknown(l_ptr) &&
|
||||
(l_ptr->peer_session != INVALID_SESSION)) {
|
||||
if (msg_session(msg) == l_ptr->peer_session)
|
||||
break; /* duplicate: ignore */
|
||||
if (less_eq(msg_session(msg), l_ptr->peer_session))
|
||||
break; /* duplicate or old reset: ignore */
|
||||
}
|
||||
|
||||
if (!msg_redundant_link(msg) && (link_working_working(l_ptr) ||
|
||||
link_working_unknown(l_ptr))) {
|
||||
/*
|
||||
* peer has lost contact -- don't allow peer's links
|
||||
* to reactivate before we recognize loss & clean up
|
||||
*/
|
||||
l_ptr->owner->block_setup = WAIT_NODE_DOWN;
|
||||
}
|
||||
|
||||
/* fall thru' */
|
||||
case ACTIVATE_MSG:
|
||||
/* Update link settings according other endpoint's values */
|
||||
|
|
|
|||
|
|
@ -223,6 +223,7 @@ struct sk_buff *tipc_link_cmd_show_stats(const void *req_tlv_area, int req_tlv_s
|
|||
struct sk_buff *tipc_link_cmd_reset_stats(const void *req_tlv_area, int req_tlv_space);
|
||||
void tipc_link_reset(struct link *l_ptr);
|
||||
int tipc_link_send(struct sk_buff *buf, u32 dest, u32 selector);
|
||||
void tipc_link_send_names(struct list_head *message_list, u32 dest);
|
||||
int tipc_link_send_buf(struct link *l_ptr, struct sk_buff *buf);
|
||||
u32 tipc_link_get_max_pkt(u32 dest, u32 selector);
|
||||
int tipc_link_send_sections_fast(struct tipc_port *sender,
|
||||
|
|
|
|||
|
|
@ -173,18 +173,40 @@ void tipc_named_withdraw(struct publication *publ)
|
|||
* tipc_named_node_up - tell specified node about all publications by this node
|
||||
*/
|
||||
|
||||
void tipc_named_node_up(unsigned long node)
|
||||
void tipc_named_node_up(unsigned long nodearg)
|
||||
{
|
||||
struct tipc_node *n_ptr;
|
||||
struct link *l_ptr;
|
||||
struct publication *publ;
|
||||
struct distr_item *item = NULL;
|
||||
struct sk_buff *buf = NULL;
|
||||
struct list_head message_list;
|
||||
u32 node = (u32)nodearg;
|
||||
u32 left = 0;
|
||||
u32 rest;
|
||||
u32 max_item_buf;
|
||||
u32 max_item_buf = 0;
|
||||
|
||||
/* compute maximum amount of publication data to send per message */
|
||||
|
||||
read_lock_bh(&tipc_net_lock);
|
||||
n_ptr = tipc_node_find(node);
|
||||
if (n_ptr) {
|
||||
tipc_node_lock(n_ptr);
|
||||
l_ptr = n_ptr->active_links[0];
|
||||
if (l_ptr)
|
||||
max_item_buf = ((l_ptr->max_pkt - INT_H_SIZE) /
|
||||
ITEM_SIZE) * ITEM_SIZE;
|
||||
tipc_node_unlock(n_ptr);
|
||||
}
|
||||
read_unlock_bh(&tipc_net_lock);
|
||||
if (!max_item_buf)
|
||||
return;
|
||||
|
||||
/* create list of publication messages, then send them as a unit */
|
||||
|
||||
INIT_LIST_HEAD(&message_list);
|
||||
|
||||
read_lock_bh(&tipc_nametbl_lock);
|
||||
max_item_buf = TIPC_MAX_USER_MSG_SIZE / ITEM_SIZE;
|
||||
max_item_buf *= ITEM_SIZE;
|
||||
rest = publ_cnt * ITEM_SIZE;
|
||||
|
||||
list_for_each_entry(publ, &publ_root, local_list) {
|
||||
|
|
@ -202,13 +224,14 @@ void tipc_named_node_up(unsigned long node)
|
|||
item++;
|
||||
left -= ITEM_SIZE;
|
||||
if (!left) {
|
||||
msg_set_link_selector(buf_msg(buf), node);
|
||||
tipc_link_send(buf, node, node);
|
||||
list_add_tail((struct list_head *)buf, &message_list);
|
||||
buf = NULL;
|
||||
}
|
||||
}
|
||||
exit:
|
||||
read_unlock_bh(&tipc_nametbl_lock);
|
||||
|
||||
tipc_link_send_names(&message_list, (u32)node);
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -141,17 +141,6 @@ void tipc_net_route_msg(struct sk_buff *buf)
|
|||
return;
|
||||
msg = buf_msg(buf);
|
||||
|
||||
msg_incr_reroute_cnt(msg);
|
||||
if (msg_reroute_cnt(msg) > 6) {
|
||||
if (msg_errcode(msg)) {
|
||||
buf_discard(buf);
|
||||
} else {
|
||||
tipc_reject_msg(buf, msg_destport(msg) ?
|
||||
TIPC_ERR_NO_PORT : TIPC_ERR_NO_NAME);
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
||||
/* Handle message for this node */
|
||||
dnode = msg_short(msg) ? tipc_own_addr : msg_destnode(msg);
|
||||
if (tipc_in_scope(dnode, tipc_own_addr)) {
|
||||
|
|
|
|||
|
|
@ -112,6 +112,7 @@ struct tipc_node *tipc_node_create(u32 addr)
|
|||
break;
|
||||
}
|
||||
list_add_tail(&n_ptr->list, &temp_node->list);
|
||||
n_ptr->block_setup = WAIT_PEER_DOWN;
|
||||
|
||||
tipc_num_nodes++;
|
||||
|
||||
|
|
@ -312,7 +313,7 @@ static void node_established_contact(struct tipc_node *n_ptr)
|
|||
}
|
||||
}
|
||||
|
||||
static void node_cleanup_finished(unsigned long node_addr)
|
||||
static void node_name_purge_complete(unsigned long node_addr)
|
||||
{
|
||||
struct tipc_node *n_ptr;
|
||||
|
||||
|
|
@ -320,7 +321,7 @@ static void node_cleanup_finished(unsigned long node_addr)
|
|||
n_ptr = tipc_node_find(node_addr);
|
||||
if (n_ptr) {
|
||||
tipc_node_lock(n_ptr);
|
||||
n_ptr->cleanup_required = 0;
|
||||
n_ptr->block_setup &= ~WAIT_NAMES_GONE;
|
||||
tipc_node_unlock(n_ptr);
|
||||
}
|
||||
read_unlock_bh(&tipc_net_lock);
|
||||
|
|
@ -331,29 +332,33 @@ static void node_lost_contact(struct tipc_node *n_ptr)
|
|||
char addr_string[16];
|
||||
u32 i;
|
||||
|
||||
/* Clean up broadcast reception remains */
|
||||
n_ptr->bclink.gap_after = n_ptr->bclink.gap_to = 0;
|
||||
while (n_ptr->bclink.deferred_head) {
|
||||
struct sk_buff *buf = n_ptr->bclink.deferred_head;
|
||||
n_ptr->bclink.deferred_head = buf->next;
|
||||
buf_discard(buf);
|
||||
}
|
||||
if (n_ptr->bclink.defragm) {
|
||||
buf_discard(n_ptr->bclink.defragm);
|
||||
n_ptr->bclink.defragm = NULL;
|
||||
}
|
||||
|
||||
if (n_ptr->bclink.supported) {
|
||||
tipc_bclink_acknowledge(n_ptr,
|
||||
mod(n_ptr->bclink.acked + 10000));
|
||||
tipc_nmap_remove(&tipc_bcast_nmap, n_ptr->addr);
|
||||
if (n_ptr->addr < tipc_own_addr)
|
||||
tipc_own_tag--;
|
||||
}
|
||||
|
||||
info("Lost contact with %s\n",
|
||||
tipc_addr_string_fill(addr_string, n_ptr->addr));
|
||||
|
||||
/* Flush broadcast link info associated with lost node */
|
||||
|
||||
if (n_ptr->bclink.supported) {
|
||||
n_ptr->bclink.gap_after = n_ptr->bclink.gap_to = 0;
|
||||
while (n_ptr->bclink.deferred_head) {
|
||||
struct sk_buff *buf = n_ptr->bclink.deferred_head;
|
||||
n_ptr->bclink.deferred_head = buf->next;
|
||||
buf_discard(buf);
|
||||
}
|
||||
|
||||
if (n_ptr->bclink.defragm) {
|
||||
buf_discard(n_ptr->bclink.defragm);
|
||||
n_ptr->bclink.defragm = NULL;
|
||||
}
|
||||
|
||||
tipc_nmap_remove(&tipc_bcast_nmap, n_ptr->addr);
|
||||
tipc_bclink_acknowledge(n_ptr,
|
||||
mod(n_ptr->bclink.acked + 10000));
|
||||
if (n_ptr->addr < tipc_own_addr)
|
||||
tipc_own_tag--;
|
||||
|
||||
n_ptr->bclink.supported = 0;
|
||||
}
|
||||
|
||||
/* Abort link changeover */
|
||||
for (i = 0; i < MAX_BEARERS; i++) {
|
||||
struct link *l_ptr = n_ptr->links[i];
|
||||
|
|
@ -367,10 +372,10 @@ static void node_lost_contact(struct tipc_node *n_ptr)
|
|||
/* Notify subscribers */
|
||||
tipc_nodesub_notify(n_ptr);
|
||||
|
||||
/* Prevent re-contact with node until all cleanup is done */
|
||||
/* Prevent re-contact with node until cleanup is done */
|
||||
|
||||
n_ptr->cleanup_required = 1;
|
||||
tipc_k_signal((Handler)node_cleanup_finished, n_ptr->addr);
|
||||
n_ptr->block_setup = WAIT_PEER_DOWN | WAIT_NAMES_GONE;
|
||||
tipc_k_signal((Handler)node_name_purge_complete, n_ptr->addr);
|
||||
}
|
||||
|
||||
struct sk_buff *tipc_node_get_nodes(const void *req_tlv_area, int req_tlv_space)
|
||||
|
|
|
|||
|
|
@ -42,6 +42,12 @@
|
|||
#include "net.h"
|
||||
#include "bearer.h"
|
||||
|
||||
/* Flags used to block (re)establishment of contact with a neighboring node */
|
||||
|
||||
#define WAIT_PEER_DOWN 0x0001 /* wait to see that peer's links are down */
|
||||
#define WAIT_NAMES_GONE 0x0002 /* wait for peer's publications to be purged */
|
||||
#define WAIT_NODE_DOWN 0x0004 /* wait until peer node is declared down */
|
||||
|
||||
/**
|
||||
* struct tipc_node - TIPC node structure
|
||||
* @addr: network address of node
|
||||
|
|
@ -52,7 +58,7 @@
|
|||
* @active_links: pointers to active links to node
|
||||
* @links: pointers to all links to node
|
||||
* @working_links: number of working links to node (both active and standby)
|
||||
* @cleanup_required: non-zero if cleaning up after a prior loss of contact
|
||||
* @block_setup: bit mask of conditions preventing link establishment to node
|
||||
* @link_cnt: number of links to node
|
||||
* @permit_changeover: non-zero if node has redundant links to this system
|
||||
* @bclink: broadcast-related info
|
||||
|
|
@ -77,7 +83,7 @@ struct tipc_node {
|
|||
struct link *links[MAX_BEARERS];
|
||||
int link_cnt;
|
||||
int working_links;
|
||||
int cleanup_required;
|
||||
int block_setup;
|
||||
int permit_changeover;
|
||||
struct {
|
||||
int supported;
|
||||
|
|
|
|||
|
|
@ -49,7 +49,7 @@ struct tipc_sock {
|
|||
struct sock sk;
|
||||
struct tipc_port *p;
|
||||
struct tipc_portid peer_name;
|
||||
long conn_timeout;
|
||||
unsigned int conn_timeout;
|
||||
};
|
||||
|
||||
#define tipc_sk(sk) ((struct tipc_sock *)(sk))
|
||||
|
|
@ -231,7 +231,7 @@ static int tipc_create(struct net *net, struct socket *sock, int protocol,
|
|||
sock_init_data(sock, sk);
|
||||
sk->sk_backlog_rcv = backlog_rcv;
|
||||
tipc_sk(sk)->p = tp_ptr;
|
||||
tipc_sk(sk)->conn_timeout = msecs_to_jiffies(CONN_TIMEOUT_DEFAULT);
|
||||
tipc_sk(sk)->conn_timeout = CONN_TIMEOUT_DEFAULT;
|
||||
|
||||
spin_unlock_bh(tp_ptr->lock);
|
||||
|
||||
|
|
@ -525,6 +525,7 @@ static int send_msg(struct kiocb *iocb, struct socket *sock,
|
|||
struct tipc_port *tport = tipc_sk_port(sk);
|
||||
struct sockaddr_tipc *dest = (struct sockaddr_tipc *)m->msg_name;
|
||||
int needs_conn;
|
||||
long timeout_val;
|
||||
int res = -EINVAL;
|
||||
|
||||
if (unlikely(!dest))
|
||||
|
|
@ -564,6 +565,8 @@ static int send_msg(struct kiocb *iocb, struct socket *sock,
|
|||
reject_rx_queue(sk);
|
||||
}
|
||||
|
||||
timeout_val = sock_sndtimeo(sk, m->msg_flags & MSG_DONTWAIT);
|
||||
|
||||
do {
|
||||
if (dest->addrtype == TIPC_ADDR_NAME) {
|
||||
res = dest_name_check(dest, m);
|
||||
|
|
@ -600,16 +603,14 @@ static int send_msg(struct kiocb *iocb, struct socket *sock,
|
|||
sock->state = SS_CONNECTING;
|
||||
break;
|
||||
}
|
||||
if (m->msg_flags & MSG_DONTWAIT) {
|
||||
res = -EWOULDBLOCK;
|
||||
if (timeout_val <= 0L) {
|
||||
res = timeout_val ? timeout_val : -EWOULDBLOCK;
|
||||
break;
|
||||
}
|
||||
release_sock(sk);
|
||||
res = wait_event_interruptible(*sk_sleep(sk),
|
||||
!tport->congested);
|
||||
timeout_val = wait_event_interruptible_timeout(*sk_sleep(sk),
|
||||
!tport->congested, timeout_val);
|
||||
lock_sock(sk);
|
||||
if (res)
|
||||
break;
|
||||
} while (1);
|
||||
|
||||
exit:
|
||||
|
|
@ -636,6 +637,7 @@ static int send_packet(struct kiocb *iocb, struct socket *sock,
|
|||
struct sock *sk = sock->sk;
|
||||
struct tipc_port *tport = tipc_sk_port(sk);
|
||||
struct sockaddr_tipc *dest = (struct sockaddr_tipc *)m->msg_name;
|
||||
long timeout_val;
|
||||
int res;
|
||||
|
||||
/* Handle implied connection establishment */
|
||||
|
|
@ -650,6 +652,8 @@ static int send_packet(struct kiocb *iocb, struct socket *sock,
|
|||
if (iocb)
|
||||
lock_sock(sk);
|
||||
|
||||
timeout_val = sock_sndtimeo(sk, m->msg_flags & MSG_DONTWAIT);
|
||||
|
||||
do {
|
||||
if (unlikely(sock->state != SS_CONNECTED)) {
|
||||
if (sock->state == SS_DISCONNECTING)
|
||||
|
|
@ -663,16 +667,14 @@ static int send_packet(struct kiocb *iocb, struct socket *sock,
|
|||
total_len);
|
||||
if (likely(res != -ELINKCONG))
|
||||
break;
|
||||
if (m->msg_flags & MSG_DONTWAIT) {
|
||||
res = -EWOULDBLOCK;
|
||||
if (timeout_val <= 0L) {
|
||||
res = timeout_val ? timeout_val : -EWOULDBLOCK;
|
||||
break;
|
||||
}
|
||||
release_sock(sk);
|
||||
res = wait_event_interruptible(*sk_sleep(sk),
|
||||
(!tport->congested || !tport->connected));
|
||||
timeout_val = wait_event_interruptible_timeout(*sk_sleep(sk),
|
||||
(!tport->congested || !tport->connected), timeout_val);
|
||||
lock_sock(sk);
|
||||
if (res)
|
||||
break;
|
||||
} while (1);
|
||||
|
||||
if (iocb)
|
||||
|
|
@ -1369,7 +1371,7 @@ static int connect(struct socket *sock, struct sockaddr *dest, int destlen,
|
|||
struct msghdr m = {NULL,};
|
||||
struct sk_buff *buf;
|
||||
struct tipc_msg *msg;
|
||||
long timeout;
|
||||
unsigned int timeout;
|
||||
int res;
|
||||
|
||||
lock_sock(sk);
|
||||
|
|
@ -1434,7 +1436,8 @@ static int connect(struct socket *sock, struct sockaddr *dest, int destlen,
|
|||
res = wait_event_interruptible_timeout(*sk_sleep(sk),
|
||||
(!skb_queue_empty(&sk->sk_receive_queue) ||
|
||||
(sock->state != SS_CONNECTING)),
|
||||
timeout ? timeout : MAX_SCHEDULE_TIMEOUT);
|
||||
timeout ? (long)msecs_to_jiffies(timeout)
|
||||
: MAX_SCHEDULE_TIMEOUT);
|
||||
lock_sock(sk);
|
||||
|
||||
if (res > 0) {
|
||||
|
|
@ -1480,9 +1483,7 @@ static int listen(struct socket *sock, int len)
|
|||
|
||||
lock_sock(sk);
|
||||
|
||||
if (sock->state == SS_READY)
|
||||
res = -EOPNOTSUPP;
|
||||
else if (sock->state != SS_UNCONNECTED)
|
||||
if (sock->state != SS_UNCONNECTED)
|
||||
res = -EINVAL;
|
||||
else {
|
||||
sock->state = SS_LISTENING;
|
||||
|
|
@ -1510,10 +1511,6 @@ static int accept(struct socket *sock, struct socket *new_sock, int flags)
|
|||
|
||||
lock_sock(sk);
|
||||
|
||||
if (sock->state == SS_READY) {
|
||||
res = -EOPNOTSUPP;
|
||||
goto exit;
|
||||
}
|
||||
if (sock->state != SS_LISTENING) {
|
||||
res = -EINVAL;
|
||||
goto exit;
|
||||
|
|
@ -1696,7 +1693,7 @@ static int setsockopt(struct socket *sock,
|
|||
res = tipc_set_portunreturnable(tport->ref, value);
|
||||
break;
|
||||
case TIPC_CONN_TIMEOUT:
|
||||
tipc_sk(sk)->conn_timeout = msecs_to_jiffies(value);
|
||||
tipc_sk(sk)->conn_timeout = value;
|
||||
/* no need to set "res", since already 0 at this point */
|
||||
break;
|
||||
default:
|
||||
|
|
@ -1752,7 +1749,7 @@ static int getsockopt(struct socket *sock,
|
|||
res = tipc_portunreturnable(tport->ref, &value);
|
||||
break;
|
||||
case TIPC_CONN_TIMEOUT:
|
||||
value = jiffies_to_msecs(tipc_sk(sk)->conn_timeout);
|
||||
value = tipc_sk(sk)->conn_timeout;
|
||||
/* no need to set "res", since already 0 at this point */
|
||||
break;
|
||||
case TIPC_NODE_RECVQ_DEPTH:
|
||||
|
|
@ -1790,11 +1787,11 @@ static const struct proto_ops msg_ops = {
|
|||
.bind = bind,
|
||||
.connect = connect,
|
||||
.socketpair = sock_no_socketpair,
|
||||
.accept = accept,
|
||||
.accept = sock_no_accept,
|
||||
.getname = get_name,
|
||||
.poll = poll,
|
||||
.ioctl = sock_no_ioctl,
|
||||
.listen = listen,
|
||||
.listen = sock_no_listen,
|
||||
.shutdown = shutdown,
|
||||
.setsockopt = setsockopt,
|
||||
.getsockopt = getsockopt,
|
||||
|
|
|
|||
|
|
@ -151,7 +151,7 @@ void tipc_subscr_report_overlap(struct subscription *sub,
|
|||
if (!must && !(sub->filter & TIPC_SUB_PORTS))
|
||||
return;
|
||||
|
||||
sub->event_cb(sub, found_lower, found_upper, event, port_ref, node);
|
||||
subscr_send_event(sub, found_lower, found_upper, event, port_ref, node);
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
@ -365,7 +365,6 @@ static struct subscription *subscr_subscribe(struct tipc_subscr *s,
|
|||
subscr_terminate(subscriber);
|
||||
return NULL;
|
||||
}
|
||||
sub->event_cb = subscr_send_event;
|
||||
INIT_LIST_HEAD(&sub->nameseq_list);
|
||||
list_add(&sub->subscription_list, &subscriber->subscription_list);
|
||||
sub->server_ref = subscriber->port_ref;
|
||||
|
|
|
|||
|
|
@ -39,16 +39,11 @@
|
|||
|
||||
struct subscription;
|
||||
|
||||
typedef void (*tipc_subscr_event) (struct subscription *sub,
|
||||
u32 found_lower, u32 found_upper,
|
||||
u32 event, u32 port_ref, u32 node);
|
||||
|
||||
/**
|
||||
* struct subscription - TIPC network topology subscription object
|
||||
* @seq: name sequence associated with subscription
|
||||
* @timeout: duration of subscription (in ms)
|
||||
* @filter: event filtering to be done for subscription
|
||||
* @event_cb: routine invoked when a subscription event is detected
|
||||
* @timer: timer governing subscription duration (optional)
|
||||
* @nameseq_list: adjacent subscriptions in name sequence's subscription list
|
||||
* @subscription_list: adjacent subscriptions in subscriber's subscription list
|
||||
|
|
@ -61,7 +56,6 @@ struct subscription {
|
|||
struct tipc_name_seq seq;
|
||||
u32 timeout;
|
||||
u32 filter;
|
||||
tipc_subscr_event event_cb;
|
||||
struct timer_list timer;
|
||||
struct list_head nameseq_list;
|
||||
struct list_head subscription_list;
|
||||
|
|
|
|||
Loading…
Reference in New Issue