diff options
| -rw-r--r-- | net/tipc/bcast.c | 26 | ||||
| -rw-r--r-- | net/tipc/bcast.h | 1 | ||||
| -rw-r--r-- | net/tipc/link.c | 247 | ||||
| -rw-r--r-- | net/tipc/link.h | 6 | ||||
| -rw-r--r-- | net/tipc/msg.c | 35 | ||||
| -rw-r--r-- | net/tipc/msg.h | 3 | ||||
| -rw-r--r-- | net/tipc/port.c | 112 | ||||
| -rw-r--r-- | net/tipc/port.h | 10 |
8 files changed, 0 insertions, 440 deletions
diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c index 4a1c9afc9d74..2f3256da6f88 100644 --- a/net/tipc/bcast.c +++ b/net/tipc/bcast.c @@ -389,32 +389,6 @@ static void bclink_peek_nack(struct tipc_msg *msg) tipc_node_unlock(n_ptr); } -/* - * tipc_bclink_xmit - broadcast a packet to all nodes in cluster - */ -int tipc_bclink_xmit(struct sk_buff *buf) -{ - int res; - - tipc_bclink_lock(); - - if (!bclink->bcast_nodes.count) { - res = msg_data_sz(buf_msg(buf)); - kfree_skb(buf); - goto exit; - } - - res = __tipc_link_xmit(bcl, buf); - if (likely(res >= 0)) { - bclink_set_last_sent(); - bcl->stats.queue_sz_counts++; - bcl->stats.accu_queue_sz += bcl->out_queue_size; - } -exit: - tipc_bclink_unlock(); - return res; -} - /* tipc_bclink_xmit2 - broadcast buffer chain to all nodes in cluster * and to identified node local sockets * @buf: chain of buffers containing message diff --git a/net/tipc/bcast.h b/net/tipc/bcast.h index d90645f408aa..af6b6579f5c7 100644 --- a/net/tipc/bcast.h +++ b/net/tipc/bcast.h @@ -89,7 +89,6 @@ void tipc_bclink_add_node(u32 addr); void tipc_bclink_remove_node(u32 addr); struct tipc_node *tipc_bclink_retransmit_to(void); void tipc_bclink_acknowledge(struct tipc_node *n_ptr, u32 acked); -int tipc_bclink_xmit(struct sk_buff *buf); void tipc_bclink_rcv(struct sk_buff *buf); u32 tipc_bclink_get_last_sent(void); u32 tipc_bclink_acks_missing(struct tipc_node *n_ptr); diff --git a/net/tipc/link.c b/net/tipc/link.c index d1255ba51216..28730ddf4b78 100644 --- a/net/tipc/link.c +++ b/net/tipc/link.c @@ -85,7 +85,6 @@ static void link_set_supervision_props(struct tipc_link *l_ptr, u32 tolerance); static void link_state_event(struct tipc_link *l_ptr, u32 event); static void link_reset_statistics(struct tipc_link *l_ptr); static void link_print(struct tipc_link *l_ptr, const char *str); -static int tipc_link_frag_xmit(struct tipc_link *l_ptr, struct sk_buff *buf); static void tipc_link_sync_xmit(struct tipc_link *l); static void tipc_link_sync_rcv(struct tipc_node *n, struct sk_buff *buf); static int tipc_link_input(struct tipc_link *l, struct sk_buff *buf); @@ -679,180 +678,6 @@ static void link_state_event(struct tipc_link *l_ptr, unsigned int event) } } -/* - * link_bundle_buf(): Append contents of a buffer to - * the tail of an existing one. - */ -static int link_bundle_buf(struct tipc_link *l_ptr, struct sk_buff *bundler, - struct sk_buff *buf) -{ - struct tipc_msg *bundler_msg = buf_msg(bundler); - struct tipc_msg *msg = buf_msg(buf); - u32 size = msg_size(msg); - u32 bundle_size = msg_size(bundler_msg); - u32 to_pos = align(bundle_size); - u32 pad = to_pos - bundle_size; - - if (msg_user(bundler_msg) != MSG_BUNDLER) - return 0; - if (msg_type(bundler_msg) != OPEN_MSG) - return 0; - if (skb_tailroom(bundler) < (pad + size)) - return 0; - if (l_ptr->max_pkt < (to_pos + size)) - return 0; - - skb_put(bundler, pad + size); - skb_copy_to_linear_data_offset(bundler, to_pos, buf->data, size); - msg_set_size(bundler_msg, to_pos + size); - msg_set_msgcnt(bundler_msg, msg_msgcnt(bundler_msg) + 1); - kfree_skb(buf); - l_ptr->stats.sent_bundled++; - return 1; -} - -static void link_add_to_outqueue(struct tipc_link *l_ptr, - struct sk_buff *buf, - struct tipc_msg *msg) -{ - u32 ack = mod(l_ptr->next_in_no - 1); - u32 seqno = mod(l_ptr->next_out_no++); - - msg_set_word(msg, 2, ((ack << 16) | seqno)); - msg_set_bcast_ack(msg, l_ptr->owner->bclink.last_in); - buf->next = NULL; - if (l_ptr->first_out) { - l_ptr->last_out->next = buf; - l_ptr->last_out = buf; - } else - l_ptr->first_out = l_ptr->last_out = buf; - - l_ptr->out_queue_size++; - if (l_ptr->out_queue_size > l_ptr->stats.max_queue_sz) - l_ptr->stats.max_queue_sz = l_ptr->out_queue_size; -} - -static void link_add_chain_to_outqueue(struct tipc_link *l_ptr, - struct sk_buff *buf_chain, - u32 long_msgno) -{ - struct sk_buff *buf; - struct tipc_msg *msg; - - if (!l_ptr->next_out) - l_ptr->next_out = buf_chain; - while (buf_chain) { - buf = buf_chain; - buf_chain = buf_chain->next; - - msg = buf_msg(buf); - msg_set_long_msgno(msg, long_msgno); - link_add_to_outqueue(l_ptr, buf, msg); - } -} - -/* - * tipc_link_xmit() is the 'full path' for messages, called from - * inside TIPC when the 'fast path' in tipc_send_xmit - * has failed, and from link_send() - */ -int __tipc_link_xmit(struct tipc_link *l_ptr, struct sk_buff *buf) -{ - struct tipc_msg *msg = buf_msg(buf); - u32 size = msg_size(msg); - u32 dsz = msg_data_sz(msg); - u32 queue_size = l_ptr->out_queue_size; - u32 imp = tipc_msg_tot_importance(msg); - u32 queue_limit = l_ptr->queue_limit[imp]; - u32 max_packet = l_ptr->max_pkt; - - /* Match msg importance against queue limits: */ - if (unlikely(queue_size >= queue_limit)) { - if (imp <= TIPC_CRITICAL_IMPORTANCE) { - link_schedule_port(l_ptr, msg_origport(msg), size); - kfree_skb(buf); - return -ELINKCONG; - } - kfree_skb(buf); - if (imp > CONN_MANAGER) { - pr_warn("%s<%s>, send queue full", link_rst_msg, - l_ptr->name); - tipc_link_reset(l_ptr); - } - return dsz; - } - - /* Fragmentation needed ? */ - if (size > max_packet) - return tipc_link_frag_xmit(l_ptr, buf); - - /* Packet can be queued or sent. */ - if (likely(!link_congested(l_ptr))) { - link_add_to_outqueue(l_ptr, buf, msg); - - tipc_bearer_send(l_ptr->bearer_id, buf, &l_ptr->media_addr); - l_ptr->unacked_window = 0; - return dsz; - } - /* Congestion: can message be bundled ? */ - if ((msg_user(msg) != CHANGEOVER_PROTOCOL) && - (msg_user(msg) != MSG_FRAGMENTER)) { - - /* Try adding message to an existing bundle */ - if (l_ptr->next_out && - link_bundle_buf(l_ptr, l_ptr->last_out, buf)) - return dsz; - - /* Try creating a new bundle */ - if (size <= max_packet * 2 / 3) { - struct sk_buff *bundler = tipc_buf_acquire(max_packet); - struct tipc_msg bundler_hdr; - - if (bundler) { - tipc_msg_init(&bundler_hdr, MSG_BUNDLER, OPEN_MSG, - INT_H_SIZE, l_ptr->addr); - skb_copy_to_linear_data(bundler, &bundler_hdr, - INT_H_SIZE); - skb_trim(bundler, INT_H_SIZE); - link_bundle_buf(l_ptr, bundler, buf); - buf = bundler; - msg = buf_msg(buf); - l_ptr->stats.sent_bundles++; - } - } - } - if (!l_ptr->next_out) - l_ptr->next_out = buf; - link_add_to_outqueue(l_ptr, buf, msg); - return dsz; -} - -/* - * tipc_link_xmit(): same as __tipc_link_xmit(), but the link to use - * has not been selected yet, and the the owner node is not locked - * Called by TIPC internal users, e.g. the name distributor - */ -int tipc_link_xmit(struct sk_buff *buf, u32 dest, u32 selector) -{ - struct tipc_link *l_ptr; - struct tipc_node *n_ptr; - int res = -ELINKCONG; - - n_ptr = tipc_node_find(dest); - if (n_ptr) { - tipc_node_lock(n_ptr); - l_ptr = n_ptr->active_links[selector & 1]; - if (l_ptr) - res = __tipc_link_xmit(l_ptr, buf); - else - kfree_skb(buf); - tipc_node_unlock(n_ptr); - } else { - kfree_skb(buf); - } - return res; -} - /* tipc_link_cong: determine return value and how to treat the * sent buffer during link congestion. * - For plain, errorless user data messages we keep the buffer and @@ -2123,78 +1948,6 @@ void tipc_link_bundle_rcv(struct sk_buff *buf) kfree_skb(buf); } -/* - * Fragmentation/defragmentation: - */ - -/* - * tipc_link_frag_xmit: Entry for buffers needing fragmentation. - * The buffer is complete, inclusive total message length. - * Returns user data length. - */ -static int tipc_link_frag_xmit(struct tipc_link *l_ptr, struct sk_buff *buf) -{ - struct sk_buff *buf_chain = NULL; - struct sk_buff *buf_chain_tail = (struct sk_buff *)&buf_chain; - struct tipc_msg *inmsg = buf_msg(buf); - struct tipc_msg fragm_hdr; - u32 insize = msg_size(inmsg); - u32 dsz = msg_data_sz(inmsg); - unchar *crs = buf->data; - u32 rest = insize; - u32 pack_sz = l_ptr->max_pkt; - u32 fragm_sz = pack_sz - INT_H_SIZE; - u32 fragm_no = 0; - u32 destaddr; - - if (msg_short(inmsg)) - destaddr = l_ptr->addr; - else - destaddr = msg_destnode(inmsg); - - /* Prepare reusable fragment header: */ - tipc_msg_init(&fragm_hdr, MSG_FRAGMENTER, FIRST_FRAGMENT, - INT_H_SIZE, destaddr); - - /* Chop up message: */ - while (rest > 0) { - struct sk_buff *fragm; - - if (rest <= fragm_sz) { - fragm_sz = rest; - msg_set_type(&fragm_hdr, LAST_FRAGMENT); - } - fragm = tipc_buf_acquire(fragm_sz + INT_H_SIZE); - if (fragm == NULL) { - kfree_skb(buf); - kfree_skb_list(buf_chain); - return -ENOMEM; - } - msg_set_size(&fragm_hdr, fragm_sz + INT_H_SIZE); - fragm_no++; - msg_set_fragm_no(&fragm_hdr, fragm_no); - skb_copy_to_linear_data(fragm, &fragm_hdr, INT_H_SIZE); - skb_copy_to_linear_data_offset(fragm, INT_H_SIZE, crs, - fragm_sz); - buf_chain_tail->next = fragm; - buf_chain_tail = fragm; - - rest -= fragm_sz; - crs += fragm_sz; - msg_set_type(&fragm_hdr, FRAGMENT); - } - kfree_skb(buf); - - /* Append chain of fragments to send queue & send them */ - l_ptr->long_msg_seq_no++; - link_add_chain_to_outqueue(l_ptr, buf_chain, l_ptr->long_msg_seq_no); - l_ptr->stats.sent_fragments += fragm_no; - l_ptr->stats.sent_fragmented++; - tipc_link_push_queue(l_ptr); - - return dsz; -} - static void link_set_supervision_props(struct tipc_link *l_ptr, u32 tolerance) { if ((tolerance < TIPC_MIN_LINK_TOL) || (tolerance > TIPC_MAX_LINK_TOL)) diff --git a/net/tipc/link.h b/net/tipc/link.h index 04a59c58d385..f0ebeb677a8b 100644 --- a/net/tipc/link.h +++ b/net/tipc/link.h @@ -226,15 +226,9 @@ struct sk_buff *tipc_link_cmd_reset_stats(const void *req_tlv_area, void tipc_link_reset_all(struct tipc_node *node); void tipc_link_reset(struct tipc_link *l_ptr); void tipc_link_reset_list(unsigned int bearer_id); -int tipc_link_xmit(struct sk_buff *buf, u32 dest, u32 selector); int tipc_link_xmit2(struct sk_buff *buf, u32 dest, u32 selector); -int __tipc_link_xmit(struct tipc_link *l_ptr, struct sk_buff *buf); int __tipc_link_xmit2(struct tipc_link *link, struct sk_buff *buf); -int tipc_link_send_buf(struct tipc_link *l_ptr, struct sk_buff *buf); u32 tipc_link_get_max_pkt(u32 dest, u32 selector); -int tipc_link_iovec_xmit_fast(struct tipc_port *sender, - struct iovec const *msg_sect, - unsigned int len, u32 destnode); void tipc_link_bundle_rcv(struct sk_buff *buf); void tipc_link_proto_xmit(struct tipc_link *l_ptr, u32 msg_typ, int prob, u32 gap, u32 tolerance, u32 priority, u32 acked_mtu); diff --git a/net/tipc/msg.c b/net/tipc/msg.c index 9682296f5e7c..e3102ea494d4 100644 --- a/net/tipc/msg.c +++ b/net/tipc/msg.c @@ -60,41 +60,6 @@ void tipc_msg_init(struct tipc_msg *m, u32 user, u32 type, u32 hsize, msg_set_destnode(m, destnode); } -/** - * tipc_msg_build - create message using specified header and data - * - * Note: Caller must not hold any locks in case copy_from_user() is interrupted! - * - * Returns message data size or errno - */ -int tipc_msg_build(struct tipc_msg *hdr, struct iovec const *msg_sect, - unsigned int len, int max_size, struct sk_buff **buf) -{ - int dsz, sz, hsz; - unsigned char *to; - - dsz = len; - hsz = msg_hdr_sz(hdr); - sz = hsz + dsz; - msg_set_size(hdr, sz); - if (unlikely(sz > max_size)) { - *buf = NULL; - return dsz; - } - - *buf = tipc_buf_acquire(sz); - if (!(*buf)) - return -ENOMEM; - skb_copy_to_linear_data(*buf, hdr, hsz); - to = (*buf)->data + hsz; - if (len && memcpy_fromiovecend(to, msg_sect, 0, dsz)) { - kfree_skb(*buf); - *buf = NULL; - return -EFAULT; - } - return dsz; -} - /* tipc_buf_append(): Append a buffer to the fragment list of another buffer * @*headbuf: in: NULL for first frag, otherwise value returned from prev call * out: set when successful non-complete reassembly, otherwise NULL diff --git a/net/tipc/msg.h b/net/tipc/msg.h index a15d59601bf9..868fe22e3452 100644 --- a/net/tipc/msg.h +++ b/net/tipc/msg.h @@ -732,9 +732,6 @@ int tipc_msg_eval(struct sk_buff *buf, u32 *dnode); void tipc_msg_init(struct tipc_msg *m, u32 user, u32 type, u32 hsize, u32 destnode); -int tipc_msg_build(struct tipc_msg *hdr, struct iovec const *msg_sect, - unsigned int len, int max_size, struct sk_buff **buf); - int tipc_buf_append(struct sk_buff **headbuf, struct sk_buff **buf); bool tipc_msg_bundle(struct sk_buff *bbuf, struct sk_buff *buf, u32 mtu); diff --git a/net/tipc/port.c b/net/tipc/port.c index 0d09dcb6da18..835dca1fd7ad 100644 --- a/net/tipc/port.c +++ b/net/tipc/port.c @@ -74,118 +74,6 @@ int tipc_port_peer_msg(struct tipc_port *p_ptr, struct tipc_msg *msg) (!peernode && (orignode == tipc_own_addr)); } -/** - * tipc_port_mcast_xmit - send a multicast message to local and remote - * destinations - */ -int tipc_port_mcast_xmit(struct tipc_port *oport, - struct tipc_name_seq const *seq, - struct iovec const *msg_sect, - unsigned int len) -{ - struct tipc_msg *hdr; - struct sk_buff *buf; - struct sk_buff *ibuf = NULL; - struct tipc_port_list dports = {0, NULL, }; - int ext_targets; - int res; - - /* Create multicast message */ - hdr = &oport->phdr; - msg_set_type(hdr, TIPC_MCAST_MSG); - msg_set_lookup_scope(hdr, TIPC_CLUSTER_SCOPE); - msg_set_destport(hdr, 0); - msg_set_destnode(hdr, 0); - msg_set_nametype(hdr, seq->type); - msg_set_namelower(hdr, seq->lower); - msg_set_nameupper(hdr, seq->upper); - msg_set_hdr_sz(hdr, MCAST_H_SIZE); - res = tipc_msg_build(hdr, msg_sect, len, MAX_MSG_SIZE, &buf); - if (unlikely(!buf)) - return res; - - /* Figure out where to send multicast message */ - ext_targets = tipc_nametbl_mc_translate(seq->type, seq->lower, seq->upper, - TIPC_NODE_SCOPE, &dports); - - /* Send message to destinations (duplicate it only if necessary) */ - if (ext_targets) { - if (dports.count != 0) { - ibuf = skb_copy(buf, GFP_ATOMIC); - if (ibuf == NULL) { - tipc_port_list_free(&dports); - kfree_skb(buf); - return -ENOMEM; - } - } - res = tipc_bclink_xmit(buf); - if ((res < 0) && (dports.count != 0)) - kfree_skb(ibuf); - } else { - ibuf = buf; - } - - if (res >= 0) { - if (ibuf) - tipc_port_mcast_rcv(ibuf, &dports); - } else { - tipc_port_list_free(&dports); - } - return res; -} - -/** - * tipc_port_mcast_rcv - deliver multicast message to all destination ports - * - * If there is no port list, perform a lookup to create one - */ -void tipc_port_mcast_rcv(struct sk_buff *buf, struct tipc_port_list *dp) -{ - struct tipc_msg *msg; - struct tipc_port_list dports = {0, NULL, }; - struct tipc_port_list *item = dp; - int cnt = 0; - - msg = buf_msg(buf); - - /* Create destination port list, if one wasn't supplied */ - if (dp == NULL) { - tipc_nametbl_mc_translate(msg_nametype(msg), - msg_namelower(msg), - msg_nameupper(msg), - TIPC_CLUSTER_SCOPE, - &dports); - item = dp = &dports; - } - - /* Deliver a copy of message to each destination port */ - if (dp->count != 0) { - msg_set_destnode(msg, tipc_own_addr); - if (dp->count == 1) { - msg_set_destport(msg, dp->ports[0]); - tipc_sk_rcv(buf); - tipc_port_list_free(dp); - return; - } - for (; cnt < dp->count; cnt++) { - int index = cnt % PLSIZE; - struct sk_buff *b = skb_clone(buf, GFP_ATOMIC); - - if (b == NULL) { - pr_warn("Unable to deliver multicast message(s)\n"); - goto exit; - } - if ((index == 0) && (cnt != 0)) - item = item->next; - msg_set_destport(buf_msg(b), item->ports[index]); - tipc_sk_rcv(b); - } - } -exit: - kfree_skb(buf); - tipc_port_list_free(dp); -} - /* tipc_port_init - intiate TIPC port and lock it * * Returns obtained reference if initialization is successful, zero otherwise diff --git a/net/tipc/port.h b/net/tipc/port.h index 0e47052daa29..3f93454592b6 100644 --- a/net/tipc/port.h +++ b/net/tipc/port.h @@ -120,17 +120,7 @@ int __tipc_port_connect(u32 ref, struct tipc_port *p_ptr, struct tipc_portid const *peer); int tipc_port_peer_msg(struct tipc_port *p_ptr, struct tipc_msg *msg); -/* - * TIPC messaging routines - */ - -int tipc_port_mcast_xmit(struct tipc_port *port, - struct tipc_name_seq const *seq, - struct iovec const *msg, - unsigned int len); - struct sk_buff *tipc_port_get_ports(void); -void tipc_port_mcast_rcv(struct sk_buff *buf, struct tipc_port_list *dp); void tipc_port_reinit(void); /** |