diff options
Diffstat (limited to 'net/tipc/link.c')
-rw-r--r-- | net/tipc/link.c | 153 |
1 files changed, 79 insertions, 74 deletions
diff --git a/net/tipc/link.c b/net/tipc/link.c index 515dfe4fd4ce..ac1832a66f8a 100644 --- a/net/tipc/link.c +++ b/net/tipc/link.c @@ -71,35 +71,36 @@ #define START_CHANGEOVER 100000u /** - * struct link_name - deconstructed link name + * struct tipc_link_name - deconstructed link name * @addr_local: network address of node at this end * @if_local: name of interface at this end * @addr_peer: network address of node at far end * @if_peer: name of interface at far end */ -struct link_name { +struct tipc_link_name { u32 addr_local; char if_local[TIPC_MAX_IF_NAME]; u32 addr_peer; char if_peer[TIPC_MAX_IF_NAME]; }; -static void link_handle_out_of_seq_msg(struct link *l_ptr, +static void link_handle_out_of_seq_msg(struct tipc_link *l_ptr, struct sk_buff *buf); -static void link_recv_proto_msg(struct link *l_ptr, struct sk_buff *buf); -static int link_recv_changeover_msg(struct link **l_ptr, struct sk_buff **buf); -static void link_set_supervision_props(struct link *l_ptr, u32 tolerance); +static void link_recv_proto_msg(struct tipc_link *l_ptr, struct sk_buff *buf); +static int link_recv_changeover_msg(struct tipc_link **l_ptr, + struct sk_buff **buf); +static void link_set_supervision_props(struct tipc_link *l_ptr, u32 tolerance); static int link_send_sections_long(struct tipc_port *sender, struct iovec const *msg_sect, u32 num_sect, unsigned int total_len, u32 destnode); -static void link_check_defragm_bufs(struct link *l_ptr); -static void link_state_event(struct link *l_ptr, u32 event); -static void link_reset_statistics(struct link *l_ptr); -static void link_print(struct link *l_ptr, const char *str); -static void link_start(struct link *l_ptr); -static int link_send_long_buf(struct link *l_ptr, struct sk_buff *buf); +static void link_check_defragm_bufs(struct tipc_link *l_ptr); +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 void link_start(struct tipc_link *l_ptr); +static int link_send_long_buf(struct tipc_link *l_ptr, struct sk_buff *buf); /* * Simple link routines @@ -110,7 +111,7 @@ static unsigned int align(unsigned int i) return (i + 3) & ~3u; } -static void link_init_max_pkt(struct link *l_ptr) +static void link_init_max_pkt(struct tipc_link *l_ptr) { u32 max_pkt; @@ -127,14 +128,14 @@ static void link_init_max_pkt(struct link *l_ptr) l_ptr->max_pkt_probes = 0; } -static u32 link_next_sent(struct link *l_ptr) +static u32 link_next_sent(struct tipc_link *l_ptr) { if (l_ptr->next_out) return buf_seqno(l_ptr->next_out); return mod(l_ptr->next_out_no); } -static u32 link_last_sent(struct link *l_ptr) +static u32 link_last_sent(struct tipc_link *l_ptr) { return mod(link_next_sent(l_ptr) - 1); } @@ -143,28 +144,29 @@ static u32 link_last_sent(struct link *l_ptr) * Simple non-static link routines (i.e. referenced outside this file) */ -int tipc_link_is_up(struct link *l_ptr) +int tipc_link_is_up(struct tipc_link *l_ptr) { if (!l_ptr) return 0; return link_working_working(l_ptr) || link_working_unknown(l_ptr); } -int tipc_link_is_active(struct link *l_ptr) +int tipc_link_is_active(struct tipc_link *l_ptr) { return (l_ptr->owner->active_links[0] == l_ptr) || (l_ptr->owner->active_links[1] == l_ptr); } /** - * link_name_validate - validate & (optionally) deconstruct link name + * link_name_validate - validate & (optionally) deconstruct tipc_link name * @name - ptr to link name string * @name_parts - ptr to area for link name components (or NULL if not needed) * * Returns 1 if link name is valid, otherwise 0. */ -static int link_name_validate(const char *name, struct link_name *name_parts) +static int link_name_validate(const char *name, + struct tipc_link_name *name_parts) { char name_copy[TIPC_MAX_LINK_NAME]; char *addr_local; @@ -238,7 +240,7 @@ static int link_name_validate(const char *name, struct link_name *name_parts) * tipc_node_delete() is called.) */ -static void link_timeout(struct link *l_ptr) +static void link_timeout(struct tipc_link *l_ptr) { tipc_node_lock(l_ptr->owner); @@ -287,7 +289,7 @@ static void link_timeout(struct link *l_ptr) tipc_node_unlock(l_ptr->owner); } -static void link_set_timer(struct link *l_ptr, u32 time) +static void link_set_timer(struct tipc_link *l_ptr, u32 time) { k_start_timer(&l_ptr->timer, time); } @@ -301,11 +303,11 @@ static void link_set_timer(struct link *l_ptr, u32 time) * Returns pointer to link. */ -struct link *tipc_link_create(struct tipc_node *n_ptr, +struct tipc_link *tipc_link_create(struct tipc_node *n_ptr, struct tipc_bearer *b_ptr, const struct tipc_media_addr *media_addr) { - struct link *l_ptr; + struct tipc_link *l_ptr; struct tipc_msg *msg; char *if_name; char addr_string[16]; @@ -382,7 +384,7 @@ struct link *tipc_link_create(struct tipc_node *n_ptr, * to avoid a potential deadlock situation. */ -void tipc_link_delete(struct link *l_ptr) +void tipc_link_delete(struct tipc_link *l_ptr) { if (!l_ptr) { err("Attempt to delete non-existent link\n"); @@ -401,7 +403,7 @@ void tipc_link_delete(struct link *l_ptr) kfree(l_ptr); } -static void link_start(struct link *l_ptr) +static void link_start(struct tipc_link *l_ptr) { tipc_node_lock(l_ptr->owner); link_state_event(l_ptr, STARTING_EVT); @@ -418,7 +420,7 @@ static void link_start(struct link *l_ptr) * has abated. */ -static int link_schedule_port(struct link *l_ptr, u32 origport, u32 sz) +static int link_schedule_port(struct tipc_link *l_ptr, u32 origport, u32 sz) { struct tipc_port *p_ptr; @@ -440,7 +442,7 @@ exit: return -ELINKCONG; } -void tipc_link_wakeup_ports(struct link *l_ptr, int all) +void tipc_link_wakeup_ports(struct tipc_link *l_ptr, int all) { struct tipc_port *p_ptr; struct tipc_port *temp_p_ptr; @@ -475,7 +477,7 @@ exit: * @l_ptr: pointer to link */ -static void link_release_outqueue(struct link *l_ptr) +static void link_release_outqueue(struct tipc_link *l_ptr) { struct sk_buff *buf = l_ptr->first_out; struct sk_buff *next; @@ -494,7 +496,7 @@ static void link_release_outqueue(struct link *l_ptr) * @l_ptr: pointer to link */ -void tipc_link_reset_fragments(struct link *l_ptr) +void tipc_link_reset_fragments(struct tipc_link *l_ptr) { struct sk_buff *buf = l_ptr->defragm_buf; struct sk_buff *next; @@ -512,7 +514,7 @@ void tipc_link_reset_fragments(struct link *l_ptr) * @l_ptr: pointer to link */ -void tipc_link_stop(struct link *l_ptr) +void tipc_link_stop(struct tipc_link *l_ptr) { struct sk_buff *buf; struct sk_buff *next; @@ -537,7 +539,7 @@ void tipc_link_stop(struct link *l_ptr) l_ptr->proto_msg_queue = NULL; } -void tipc_link_reset(struct link *l_ptr) +void tipc_link_reset(struct tipc_link *l_ptr) { struct sk_buff *buf; u32 prev_state = l_ptr->state; @@ -597,7 +599,7 @@ void tipc_link_reset(struct link *l_ptr) } -static void link_activate(struct link *l_ptr) +static void link_activate(struct tipc_link *l_ptr) { l_ptr->next_in_no = l_ptr->stats.recv_info = 1; tipc_node_link_up(l_ptr->owner, l_ptr); @@ -610,9 +612,9 @@ static void link_activate(struct link *l_ptr) * @event: state machine event to process */ -static void link_state_event(struct link *l_ptr, unsigned event) +static void link_state_event(struct tipc_link *l_ptr, unsigned event) { - struct link *other; + struct tipc_link *other; u32 cont_intv = l_ptr->continuity_interval; if (!l_ptr->started && (event != STARTING_EVT)) @@ -784,7 +786,7 @@ static void link_state_event(struct link *l_ptr, unsigned event) * the tail of an existing one. */ -static int link_bundle_buf(struct link *l_ptr, +static int link_bundle_buf(struct tipc_link *l_ptr, struct sk_buff *bundler, struct sk_buff *buf) { @@ -813,7 +815,7 @@ static int link_bundle_buf(struct link *l_ptr, return 1; } -static void link_add_to_outqueue(struct link *l_ptr, +static void link_add_to_outqueue(struct tipc_link *l_ptr, struct sk_buff *buf, struct tipc_msg *msg) { @@ -834,7 +836,7 @@ static void link_add_to_outqueue(struct link *l_ptr, l_ptr->stats.max_queue_sz = l_ptr->out_queue_size; } -static void link_add_chain_to_outqueue(struct link *l_ptr, +static void link_add_chain_to_outqueue(struct tipc_link *l_ptr, struct sk_buff *buf_chain, u32 long_msgno) { @@ -859,7 +861,7 @@ static void link_add_chain_to_outqueue(struct link *l_ptr, * has failed, and from link_send() */ -int tipc_link_send_buf(struct link *l_ptr, struct sk_buff *buf) +int tipc_link_send_buf(struct tipc_link *l_ptr, struct sk_buff *buf) { struct tipc_msg *msg = buf_msg(buf); u32 size = msg_size(msg); @@ -954,7 +956,7 @@ int tipc_link_send_buf(struct link *l_ptr, struct sk_buff *buf) int tipc_link_send(struct sk_buff *buf, u32 dest, u32 selector) { - struct link *l_ptr; + struct tipc_link *l_ptr; struct tipc_node *n_ptr; int res = -ELINKCONG; @@ -988,7 +990,7 @@ int tipc_link_send(struct sk_buff *buf, u32 dest, u32 selector) void tipc_link_send_names(struct list_head *message_list, u32 dest) { struct tipc_node *n_ptr; - struct link *l_ptr; + struct tipc_link *l_ptr; struct sk_buff *buf; struct sk_buff *temp_buf; @@ -1027,7 +1029,7 @@ void tipc_link_send_names(struct list_head *message_list, u32 dest) * Link is locked. Returns user data length. */ -static int link_send_buf_fast(struct link *l_ptr, struct sk_buff *buf, +static int link_send_buf_fast(struct tipc_link *l_ptr, struct sk_buff *buf, u32 *used_max_pkt) { struct tipc_msg *msg = buf_msg(buf); @@ -1061,7 +1063,7 @@ static int link_send_buf_fast(struct link *l_ptr, struct sk_buff *buf, */ int tipc_send_buf_fast(struct sk_buff *buf, u32 destnode) { - struct link *l_ptr; + struct tipc_link *l_ptr; struct tipc_node *n_ptr; int res; u32 selector = msg_origport(buf_msg(buf)) & 1; @@ -1100,7 +1102,7 @@ int tipc_link_send_sections_fast(struct tipc_port *sender, u32 destaddr) { struct tipc_msg *hdr = &sender->phdr; - struct link *l_ptr; + struct tipc_link *l_ptr; struct sk_buff *buf; struct tipc_node *node; int res; @@ -1195,7 +1197,7 @@ static int link_send_sections_long(struct tipc_port *sender, unsigned int total_len, u32 destaddr) { - struct link *l_ptr; + struct tipc_link *l_ptr; struct tipc_node *node; struct tipc_msg *hdr = &sender->phdr; u32 dsz = total_len; @@ -1342,7 +1344,7 @@ reject: /* * tipc_link_push_packet: Push one unsent packet to the media */ -u32 tipc_link_push_packet(struct link *l_ptr) +u32 tipc_link_push_packet(struct tipc_link *l_ptr) { struct sk_buff *buf = l_ptr->first_out; u32 r_q_size = l_ptr->retransm_queue_size; @@ -1426,7 +1428,7 @@ u32 tipc_link_push_packet(struct link *l_ptr) * push_queue(): push out the unsent messages of a link where * congestion has abated. Node is locked */ -void tipc_link_push_queue(struct link *l_ptr) +void tipc_link_push_queue(struct tipc_link *l_ptr) { u32 res; @@ -1470,7 +1472,8 @@ static void link_reset_all(unsigned long addr) read_unlock_bh(&tipc_net_lock); } -static void link_retransmit_failure(struct link *l_ptr, struct sk_buff *buf) +static void link_retransmit_failure(struct tipc_link *l_ptr, + struct sk_buff *buf) { struct tipc_msg *msg = buf_msg(buf); @@ -1514,7 +1517,7 @@ static void link_retransmit_failure(struct link *l_ptr, struct sk_buff *buf) } } -void tipc_link_retransmit(struct link *l_ptr, struct sk_buff *buf, +void tipc_link_retransmit(struct tipc_link *l_ptr, struct sk_buff *buf, u32 retransmits) { struct tipc_msg *msg; @@ -1571,7 +1574,7 @@ void tipc_link_retransmit(struct link *l_ptr, struct sk_buff *buf, * link_insert_deferred_queue - insert deferred messages back into receive chain */ -static struct sk_buff *link_insert_deferred_queue(struct link *l_ptr, +static struct sk_buff *link_insert_deferred_queue(struct tipc_link *l_ptr, struct sk_buff *buf) { u32 seq_no; @@ -1653,7 +1656,7 @@ void tipc_recv_msg(struct sk_buff *head, struct tipc_bearer *b_ptr) read_lock_bh(&tipc_net_lock); while (head) { struct tipc_node *n_ptr; - struct link *l_ptr; + struct tipc_link *l_ptr; struct sk_buff *crs; struct sk_buff *buf = head; struct tipc_msg *msg; @@ -1906,7 +1909,7 @@ u32 tipc_link_defer_pkt(struct sk_buff **head, * link_handle_out_of_seq_msg - handle arrival of out-of-sequence packet */ -static void link_handle_out_of_seq_msg(struct link *l_ptr, +static void link_handle_out_of_seq_msg(struct tipc_link *l_ptr, struct sk_buff *buf) { u32 seq_no = buf_seqno(buf); @@ -1944,8 +1947,9 @@ static void link_handle_out_of_seq_msg(struct link *l_ptr, /* * Send protocol message to the other endpoint. */ -void tipc_link_send_proto_msg(struct link *l_ptr, u32 msg_typ, int probe_msg, - u32 gap, u32 tolerance, u32 priority, u32 ack_mtu) +void tipc_link_send_proto_msg(struct tipc_link *l_ptr, u32 msg_typ, + int probe_msg, u32 gap, u32 tolerance, + u32 priority, u32 ack_mtu) { struct sk_buff *buf = NULL; struct tipc_msg *msg = l_ptr->pmsg; @@ -2062,7 +2066,7 @@ void tipc_link_send_proto_msg(struct link *l_ptr, u32 msg_typ, int probe_msg, * change at any time. The node with lowest address rules */ -static void link_recv_proto_msg(struct link *l_ptr, struct sk_buff *buf) +static void link_recv_proto_msg(struct tipc_link *l_ptr, struct sk_buff *buf) { u32 rec_gap = 0; u32 max_pkt_info; @@ -2195,12 +2199,12 @@ exit: * tipc_link_tunnel(): Send one message via a link belonging to * another bearer. Owner node is locked. */ -static void tipc_link_tunnel(struct link *l_ptr, +static void tipc_link_tunnel(struct tipc_link *l_ptr, struct tipc_msg *tunnel_hdr, struct tipc_msg *msg, u32 selector) { - struct link *tunnel; + struct tipc_link *tunnel; struct sk_buff *buf; u32 length = msg_size(msg); @@ -2229,11 +2233,11 @@ static void tipc_link_tunnel(struct link *l_ptr, * Owner node is locked. */ -void tipc_link_changeover(struct link *l_ptr) +void tipc_link_changeover(struct tipc_link *l_ptr) { u32 msgcount = l_ptr->out_queue_size; struct sk_buff *crs = l_ptr->first_out; - struct link *tunnel = l_ptr->owner->active_links[0]; + struct tipc_link *tunnel = l_ptr->owner->active_links[0]; struct tipc_msg tunnel_hdr; int split_bundles; @@ -2292,7 +2296,7 @@ void tipc_link_changeover(struct link *l_ptr) } } -void tipc_link_send_duplicate(struct link *l_ptr, struct link *tunnel) +void tipc_link_send_duplicate(struct tipc_link *l_ptr, struct tipc_link *tunnel) { struct sk_buff *iter; struct tipc_msg tunnel_hdr; @@ -2356,11 +2360,11 @@ static struct sk_buff *buf_extract(struct sk_buff *skb, u32 from_pos) * via other link. Node is locked. Return extracted buffer. */ -static int link_recv_changeover_msg(struct link **l_ptr, +static int link_recv_changeover_msg(struct tipc_link **l_ptr, struct sk_buff **buf) { struct sk_buff *tunnel_buf = *buf; - struct link *dest_link; + struct tipc_link *dest_link; struct tipc_msg *msg; struct tipc_msg *tunnel_msg = buf_msg(tunnel_buf); u32 msg_typ = msg_type(tunnel_msg); @@ -2460,7 +2464,7 @@ void tipc_link_recv_bundle(struct sk_buff *buf) * The buffer is complete, inclusive total message length. * Returns user data length. */ -static int link_send_long_buf(struct link *l_ptr, struct sk_buff *buf) +static int link_send_long_buf(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; @@ -2656,7 +2660,7 @@ int tipc_link_recv_fragment(struct sk_buff **pending, struct sk_buff **fb, * @l_ptr: pointer to link */ -static void link_check_defragm_bufs(struct link *l_ptr) +static void link_check_defragm_bufs(struct tipc_link *l_ptr) { struct sk_buff *prev = NULL; struct sk_buff *next = NULL; @@ -2686,7 +2690,7 @@ static void link_check_defragm_bufs(struct link *l_ptr) -static void link_set_supervision_props(struct link *l_ptr, u32 tolerance) +static void link_set_supervision_props(struct tipc_link *l_ptr, u32 tolerance) { if ((tolerance < TIPC_MIN_LINK_TOL) || (tolerance > TIPC_MAX_LINK_TOL)) return; @@ -2698,7 +2702,7 @@ static void link_set_supervision_props(struct link *l_ptr, u32 tolerance) } -void tipc_link_set_queue_limits(struct link *l_ptr, u32 window) +void tipc_link_set_queue_limits(struct tipc_link *l_ptr, u32 window) { /* Data messages from this node, inclusive FIRST_FRAGM */ l_ptr->queue_limit[TIPC_LOW_IMPORTANCE] = window; @@ -2728,11 +2732,12 @@ void tipc_link_set_queue_limits(struct link *l_ptr, u32 window) * Returns pointer to link (or 0 if invalid link name). */ -static struct link *link_find_link(const char *name, struct tipc_node **node) +static struct tipc_link *link_find_link(const char *name, + struct tipc_node **node) { - struct link_name link_name_parts; + struct tipc_link_name link_name_parts; struct tipc_bearer *b_ptr; - struct link *l_ptr; + struct tipc_link *l_ptr; if (!link_name_validate(name, &link_name_parts)) return NULL; @@ -2791,7 +2796,7 @@ static int link_value_is_valid(u16 cmd, u32 new_value) static int link_cmd_set_value(const char *name, u32 new_value, u16 cmd) { struct tipc_node *node; - struct link *l_ptr; + struct tipc_link *l_ptr; struct tipc_bearer *b_ptr; struct tipc_media *m_ptr; @@ -2893,7 +2898,7 @@ struct sk_buff *tipc_link_cmd_config(const void *req_tlv_area, int req_tlv_space * @l_ptr: pointer to link */ -static void link_reset_statistics(struct link *l_ptr) +static void link_reset_statistics(struct tipc_link *l_ptr) { memset(&l_ptr->stats, 0, sizeof(l_ptr->stats)); l_ptr->stats.sent_info = l_ptr->next_out_no; @@ -2903,7 +2908,7 @@ static void link_reset_statistics(struct link *l_ptr) struct sk_buff *tipc_link_cmd_reset_stats(const void *req_tlv_area, int req_tlv_space) { char *link_name; - struct link *l_ptr; + struct tipc_link *l_ptr; struct tipc_node *node; if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_LINK_NAME)) @@ -2951,7 +2956,7 @@ static u32 percent(u32 count, u32 total) static int tipc_link_stats(const char *name, char *buf, const u32 buf_size) { struct print_buf pb; - struct link *l_ptr; + struct tipc_link *l_ptr; struct tipc_node *node; char *status; u32 profile_total = 0; @@ -3073,7 +3078,7 @@ struct sk_buff *tipc_link_cmd_show_stats(const void *req_tlv_area, int req_tlv_s u32 tipc_link_get_max_pkt(u32 dest, u32 selector) { struct tipc_node *n_ptr; - struct link *l_ptr; + struct tipc_link *l_ptr; u32 res = MAX_PKT_DEFAULT; if (dest == tipc_own_addr) @@ -3092,7 +3097,7 @@ u32 tipc_link_get_max_pkt(u32 dest, u32 selector) return res; } -static void link_print(struct link *l_ptr, const char *str) +static void link_print(struct tipc_link *l_ptr, const char *str) { char print_area[256]; struct print_buf pb; |