diff options
Diffstat (limited to 'net/rxrpc/proc.c')
| -rw-r--r-- | net/rxrpc/proc.c | 396 |
1 files changed, 328 insertions, 68 deletions
diff --git a/net/rxrpc/proc.c b/net/rxrpc/proc.c index c7d976859d40..d803562ca0ac 100644 --- a/net/rxrpc/proc.c +++ b/net/rxrpc/proc.c @@ -1,12 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* /proc/net/ support for AF_RXRPC * * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #include <linux/module.h> @@ -16,13 +12,13 @@ static const char *const rxrpc_conn_states[RXRPC_CONN__NR_STATES] = { [RXRPC_CONN_UNUSED] = "Unused ", + [RXRPC_CONN_CLIENT_UNSECURED] = "ClUnsec ", [RXRPC_CONN_CLIENT] = "Client ", [RXRPC_CONN_SERVICE_PREALLOC] = "SvPrealc", [RXRPC_CONN_SERVICE_UNSECURED] = "SvUnsec ", [RXRPC_CONN_SERVICE_CHALLENGING] = "SvChall ", [RXRPC_CONN_SERVICE] = "SvSecure", - [RXRPC_CONN_REMOTELY_ABORTED] = "RmtAbort", - [RXRPC_CONN_LOCALLY_ABORTED] = "LocAbort", + [RXRPC_CONN_ABORTED] = "Aborted ", }; /* @@ -30,94 +26,77 @@ static const char *const rxrpc_conn_states[RXRPC_CONN__NR_STATES] = { */ static void *rxrpc_call_seq_start(struct seq_file *seq, loff_t *_pos) __acquires(rcu) - __acquires(rxnet->call_lock) { struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq)); rcu_read_lock(); - read_lock(&rxnet->call_lock); - return seq_list_start_head(&rxnet->calls, *_pos); + return seq_list_start_head_rcu(&rxnet->calls, *_pos); } static void *rxrpc_call_seq_next(struct seq_file *seq, void *v, loff_t *pos) { struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq)); - return seq_list_next(v, &rxnet->calls, pos); + return seq_list_next_rcu(v, &rxnet->calls, pos); } static void rxrpc_call_seq_stop(struct seq_file *seq, void *v) - __releases(rxnet->call_lock) __releases(rcu) { - struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq)); - - read_unlock(&rxnet->call_lock); rcu_read_unlock(); } static int rxrpc_call_seq_show(struct seq_file *seq, void *v) { struct rxrpc_local *local; - struct rxrpc_sock *rx; - struct rxrpc_peer *peer; struct rxrpc_call *call; struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq)); - unsigned long timeout = 0; - rxrpc_seq_t tx_hard_ack, rx_hard_ack; + enum rxrpc_call_state state; + rxrpc_seq_t tx_bottom; char lbuff[50], rbuff[50]; + long timeout = 0; if (v == &rxnet->calls) { seq_puts(seq, "Proto Local " " Remote " " SvID ConnID CallID End Use State Abort " - " UserID TxSeq TW RxSeq RW RxSerial RxTimo\n"); + " DebugId TxSeq TW RxSeq RW RxSerial CW RxTimo\n"); return 0; } call = list_entry(v, struct rxrpc_call, link); - rx = rcu_dereference(call->socket); - if (rx) { - local = READ_ONCE(rx->local); - if (local) - sprintf(lbuff, "%pISpc", &local->srx.transport); - else - strcpy(lbuff, "no_local"); - } else { - strcpy(lbuff, "no_socket"); - } - - peer = call->peer; - if (peer) - sprintf(rbuff, "%pISpc", &peer->srx.transport); + local = call->local; + if (local) + sprintf(lbuff, "%pISpc", &local->srx.transport); else - strcpy(rbuff, "no_connection"); + strcpy(lbuff, "no_local"); - if (call->state != RXRPC_CALL_SERVER_PREALLOC) { - timeout = READ_ONCE(call->expect_rx_by); - timeout -= jiffies; - } + sprintf(rbuff, "%pISpc", &call->dest_srx.transport); + + state = rxrpc_call_state(call); + if (state != RXRPC_CALL_SERVER_PREALLOC) + timeout = ktime_ms_delta(READ_ONCE(call->expect_rx_by), ktime_get_real()); - tx_hard_ack = READ_ONCE(call->tx_hard_ack); - rx_hard_ack = READ_ONCE(call->rx_hard_ack); + tx_bottom = READ_ONCE(call->tx_bottom); seq_printf(seq, "UDP %-47.47s %-47.47s %4x %08x %08x %s %3u" - " %-8.8s %08x %lx %08x %02x %08x %02x %08x %06lx\n", + " %-8.8s %08x %08x %08x %02x %08x %02x %08x %02x %06lx\n", lbuff, rbuff, - call->service_id, + call->dest_srx.srx_service, call->cid, call->call_id, rxrpc_is_service_call(call) ? "Svc" : "Clt", - atomic_read(&call->usage), - rxrpc_call_states[call->state], + refcount_read(&call->ref), + rxrpc_call_states[state], call->abort_code, - call->user_call_ID, - tx_hard_ack, READ_ONCE(call->tx_top) - tx_hard_ack, - rx_hard_ack, READ_ONCE(call->rx_top) - rx_hard_ack, + call->debug_id, + tx_bottom, READ_ONCE(call->tx_top) - tx_bottom, + call->ackr_window, call->ackr_wtop - call->ackr_window, call->rx_serial, + call->cong_cwnd, timeout); return 0; @@ -162,14 +141,15 @@ static int rxrpc_connection_seq_show(struct seq_file *seq, void *v) { struct rxrpc_connection *conn; struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq)); + const char *state; char lbuff[50], rbuff[50]; if (v == &rxnet->conn_proc_list) { seq_puts(seq, "Proto Local " " Remote " - " SvID ConnID End Use State Key " - " Serial ISerial\n" + " SvID ConnID End Ref Act State Key " + " Serial ISerial CallId0 CallId1 CallId2 CallId3\n" ); return 0; } @@ -181,22 +161,25 @@ static int rxrpc_connection_seq_show(struct seq_file *seq, void *v) goto print; } - sprintf(lbuff, "%pISpc", &conn->params.local->srx.transport); - - sprintf(rbuff, "%pISpc", &conn->params.peer->srx.transport); + sprintf(lbuff, "%pISpc", &conn->local->srx.transport); + sprintf(rbuff, "%pISpc", &conn->peer->srx.transport); print: + state = rxrpc_is_conn_aborted(conn) ? + rxrpc_call_completions[conn->completion] : + rxrpc_conn_states[conn->state]; seq_printf(seq, - "UDP %-47.47s %-47.47s %4x %08x %s %3u" + "UDP %-47.47s %-47.47s %4x %08x %s %3u %3d" " %s %08x %08x %08x %08x %08x %08x %08x\n", lbuff, rbuff, conn->service_id, conn->proto.cid, rxrpc_conn_is_service(conn) ? "Svc" : "Clt", - atomic_read(&conn->usage), - rxrpc_conn_states[conn->state], - key_serial(conn->params.key), - atomic_read(&conn->serial), + refcount_read(&conn->ref), + atomic_read(&conn->active), + state, + key_serial(conn->key), + conn->tx_serial, conn->hi_serial, conn->channels[0].call_id, conn->channels[1].call_id, @@ -214,6 +197,82 @@ const struct seq_operations rxrpc_connection_seq_ops = { }; /* + * generate a list of extant virtual bundles in /proc/net/rxrpc/bundles + */ +static void *rxrpc_bundle_seq_start(struct seq_file *seq, loff_t *_pos) + __acquires(rxnet->conn_lock) +{ + struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq)); + + read_lock(&rxnet->conn_lock); + return seq_list_start_head(&rxnet->bundle_proc_list, *_pos); +} + +static void *rxrpc_bundle_seq_next(struct seq_file *seq, void *v, + loff_t *pos) +{ + struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq)); + + return seq_list_next(v, &rxnet->bundle_proc_list, pos); +} + +static void rxrpc_bundle_seq_stop(struct seq_file *seq, void *v) + __releases(rxnet->conn_lock) +{ + struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq)); + + read_unlock(&rxnet->conn_lock); +} + +static int rxrpc_bundle_seq_show(struct seq_file *seq, void *v) +{ + struct rxrpc_bundle *bundle; + struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq)); + char lbuff[50], rbuff[50]; + + if (v == &rxnet->bundle_proc_list) { + seq_puts(seq, + "Proto Local " + " Remote " + " SvID Ref Act Flg Key |" + " Bundle Conn_0 Conn_1 Conn_2 Conn_3\n" + ); + return 0; + } + + bundle = list_entry(v, struct rxrpc_bundle, proc_link); + + sprintf(lbuff, "%pISpc", &bundle->local->srx.transport); + sprintf(rbuff, "%pISpc", &bundle->peer->srx.transport); + seq_printf(seq, + "UDP %-47.47s %-47.47s %4x %3u %3d" + " %c%c%c %08x | %08x %08x %08x %08x %08x\n", + lbuff, + rbuff, + bundle->service_id, + refcount_read(&bundle->ref), + atomic_read(&bundle->active), + bundle->try_upgrade ? 'U' : '-', + bundle->exclusive ? 'e' : '-', + bundle->upgrade ? 'u' : '-', + key_serial(bundle->key), + bundle->debug_id, + bundle->conn_ids[0], + bundle->conn_ids[1], + bundle->conn_ids[2], + bundle->conn_ids[3]); + + return 0; +} + +const struct seq_operations rxrpc_bundle_seq_ops = { + .start = rxrpc_bundle_seq_start, + .next = rxrpc_bundle_seq_next, + .stop = rxrpc_bundle_seq_stop, + .show = rxrpc_bundle_seq_show, +}; + +/* * generate a list of extant virtual peers in /proc/net/rxrpc/peers */ static int rxrpc_peer_seq_show(struct seq_file *seq, void *v) @@ -224,9 +283,7 @@ static int rxrpc_peer_seq_show(struct seq_file *seq, void *v) if (v == SEQ_START_TOKEN) { seq_puts(seq, - "Proto Local " - " Remote " - " Use CW MTU LastUse RTT Rc\n" + "Proto Local Remote Use SST Maxd LastUse RTT RTO\n" ); return 0; } @@ -239,16 +296,15 @@ static int rxrpc_peer_seq_show(struct seq_file *seq, void *v) now = ktime_get_seconds(); seq_printf(seq, - "UDP %-47.47s %-47.47s %3u" - " %3u %5u %6llus %12llu %2u\n", + "UDP %-47.47s %-47.47s %3u %4u %5u %6llus %8d %8d\n", lbuff, rbuff, - atomic_read(&peer->usage), - peer->cong_cwnd, - peer->mtu, + refcount_read(&peer->ref), + peer->cong_ssthresh, + peer->max_data, now - peer->last_tx_at, - peer->rtt, - peer->rtt_cursor); + READ_ONCE(peer->recent_srtt_us), + READ_ONCE(peer->recent_rto_us)); return 0; } @@ -338,3 +394,207 @@ const struct seq_operations rxrpc_peer_seq_ops = { .stop = rxrpc_peer_seq_stop, .show = rxrpc_peer_seq_show, }; + +/* + * Generate a list of extant virtual local endpoints in /proc/net/rxrpc/locals + */ +static int rxrpc_local_seq_show(struct seq_file *seq, void *v) +{ + struct rxrpc_local *local; + char lbuff[50]; + + if (v == SEQ_START_TOKEN) { + seq_puts(seq, + "Proto Local " + " Use Act RxQ\n"); + return 0; + } + + local = hlist_entry(v, struct rxrpc_local, link); + + sprintf(lbuff, "%pISpc", &local->srx.transport); + + seq_printf(seq, + "UDP %-47.47s %3u %3u %3u\n", + lbuff, + refcount_read(&local->ref), + atomic_read(&local->active_users), + local->rx_queue.qlen); + + return 0; +} + +static void *rxrpc_local_seq_start(struct seq_file *seq, loff_t *_pos) + __acquires(rcu) +{ + struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq)); + unsigned int n; + + rcu_read_lock(); + + if (*_pos >= UINT_MAX) + return NULL; + + n = *_pos; + if (n == 0) + return SEQ_START_TOKEN; + + return seq_hlist_start_rcu(&rxnet->local_endpoints, n - 1); +} + +static void *rxrpc_local_seq_next(struct seq_file *seq, void *v, loff_t *_pos) +{ + struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq)); + + if (*_pos >= UINT_MAX) + return NULL; + + return seq_hlist_next_rcu(v, &rxnet->local_endpoints, _pos); +} + +static void rxrpc_local_seq_stop(struct seq_file *seq, void *v) + __releases(rcu) +{ + rcu_read_unlock(); +} + +const struct seq_operations rxrpc_local_seq_ops = { + .start = rxrpc_local_seq_start, + .next = rxrpc_local_seq_next, + .stop = rxrpc_local_seq_stop, + .show = rxrpc_local_seq_show, +}; + +/* + * Display stats in /proc/net/rxrpc/stats + */ +int rxrpc_stats_show(struct seq_file *seq, void *v) +{ + struct rxrpc_net *rxnet = rxrpc_net(seq_file_single_net(seq)); + + seq_printf(seq, + "Data : send=%u sendf=%u fail=%u emsz=%u\n", + atomic_read(&rxnet->stat_tx_data_send), + atomic_read(&rxnet->stat_tx_data_send_frag), + atomic_read(&rxnet->stat_tx_data_send_fail), + atomic_read(&rxnet->stat_tx_data_send_msgsize)); + seq_printf(seq, + "Data-Tx : nr=%u retrans=%u uf=%u cwr=%u\n", + atomic_read(&rxnet->stat_tx_data), + atomic_read(&rxnet->stat_tx_data_retrans), + atomic_read(&rxnet->stat_tx_data_underflow), + atomic_read(&rxnet->stat_tx_data_cwnd_reset)); + seq_printf(seq, + "Data-Rx : nr=%u reqack=%u jumbo=%u\n", + atomic_read(&rxnet->stat_rx_data), + atomic_read(&rxnet->stat_rx_data_reqack), + atomic_read(&rxnet->stat_rx_data_jumbo)); + seq_printf(seq, + "Ack : fill=%u send=%u skip=%u\n", + atomic_read(&rxnet->stat_tx_ack_fill), + atomic_read(&rxnet->stat_tx_ack_send), + atomic_read(&rxnet->stat_tx_ack_skip)); + seq_printf(seq, + "Ack-Tx : req=%u dup=%u oos=%u exw=%u nos=%u png=%u prs=%u dly=%u idl=%u\n", + atomic_read(&rxnet->stat_tx_acks[RXRPC_ACK_REQUESTED]), + atomic_read(&rxnet->stat_tx_acks[RXRPC_ACK_DUPLICATE]), + atomic_read(&rxnet->stat_tx_acks[RXRPC_ACK_OUT_OF_SEQUENCE]), + atomic_read(&rxnet->stat_tx_acks[RXRPC_ACK_EXCEEDS_WINDOW]), + atomic_read(&rxnet->stat_tx_acks[RXRPC_ACK_NOSPACE]), + atomic_read(&rxnet->stat_tx_acks[RXRPC_ACK_PING]), + atomic_read(&rxnet->stat_tx_acks[RXRPC_ACK_PING_RESPONSE]), + atomic_read(&rxnet->stat_tx_acks[RXRPC_ACK_DELAY]), + atomic_read(&rxnet->stat_tx_acks[RXRPC_ACK_IDLE])); + seq_printf(seq, + "Ack-Rx : req=%u dup=%u oos=%u exw=%u nos=%u png=%u prs=%u dly=%u idl=%u z=%u\n", + atomic_read(&rxnet->stat_rx_acks[RXRPC_ACK_REQUESTED]), + atomic_read(&rxnet->stat_rx_acks[RXRPC_ACK_DUPLICATE]), + atomic_read(&rxnet->stat_rx_acks[RXRPC_ACK_OUT_OF_SEQUENCE]), + atomic_read(&rxnet->stat_rx_acks[RXRPC_ACK_EXCEEDS_WINDOW]), + atomic_read(&rxnet->stat_rx_acks[RXRPC_ACK_NOSPACE]), + atomic_read(&rxnet->stat_rx_acks[RXRPC_ACK_PING]), + atomic_read(&rxnet->stat_rx_acks[RXRPC_ACK_PING_RESPONSE]), + atomic_read(&rxnet->stat_rx_acks[RXRPC_ACK_DELAY]), + atomic_read(&rxnet->stat_rx_acks[RXRPC_ACK_IDLE]), + atomic_read(&rxnet->stat_rx_acks[0])); + seq_printf(seq, + "Why-Req-A: acklost=%u mrtt=%u ortt=%u stall=%u\n", + atomic_read(&rxnet->stat_why_req_ack[rxrpc_reqack_ack_lost]), + atomic_read(&rxnet->stat_why_req_ack[rxrpc_reqack_more_rtt]), + atomic_read(&rxnet->stat_why_req_ack[rxrpc_reqack_old_rtt]), + atomic_read(&rxnet->stat_why_req_ack[rxrpc_reqack_app_stall])); + seq_printf(seq, + "Why-Req-A: nolast=%u retx=%u slows=%u smtxw=%u\n", + atomic_read(&rxnet->stat_why_req_ack[rxrpc_reqack_no_srv_last]), + atomic_read(&rxnet->stat_why_req_ack[rxrpc_reqack_retrans]), + atomic_read(&rxnet->stat_why_req_ack[rxrpc_reqack_slow_start]), + atomic_read(&rxnet->stat_why_req_ack[rxrpc_reqack_small_txwin])); + seq_printf(seq, + "Jumbo-Tx : %u,%u,%u,%u,%u,%u,%u,%u,%u,%u\n", + atomic_read(&rxnet->stat_tx_jumbo[0]), + atomic_read(&rxnet->stat_tx_jumbo[1]), + atomic_read(&rxnet->stat_tx_jumbo[2]), + atomic_read(&rxnet->stat_tx_jumbo[3]), + atomic_read(&rxnet->stat_tx_jumbo[4]), + atomic_read(&rxnet->stat_tx_jumbo[5]), + atomic_read(&rxnet->stat_tx_jumbo[6]), + atomic_read(&rxnet->stat_tx_jumbo[7]), + atomic_read(&rxnet->stat_tx_jumbo[8]), + atomic_read(&rxnet->stat_tx_jumbo[9])); + seq_printf(seq, + "Jumbo-Rx : %u,%u,%u,%u,%u,%u,%u,%u,%u,%u\n", + atomic_read(&rxnet->stat_rx_jumbo[0]), + atomic_read(&rxnet->stat_rx_jumbo[1]), + atomic_read(&rxnet->stat_rx_jumbo[2]), + atomic_read(&rxnet->stat_rx_jumbo[3]), + atomic_read(&rxnet->stat_rx_jumbo[4]), + atomic_read(&rxnet->stat_rx_jumbo[5]), + atomic_read(&rxnet->stat_rx_jumbo[6]), + atomic_read(&rxnet->stat_rx_jumbo[7]), + atomic_read(&rxnet->stat_rx_jumbo[8]), + atomic_read(&rxnet->stat_rx_jumbo[9])); + seq_printf(seq, + "Buffers : txb=%u rxb=%u\n", + atomic_read(&rxrpc_nr_txbuf), + atomic_read(&rxrpc_n_rx_skbs)); + seq_printf(seq, + "IO-thread: loops=%u\n", + atomic_read(&rxnet->stat_io_loop)); + return 0; +} + +/* + * Clear stats if /proc/net/rxrpc/stats is written to. + */ +int rxrpc_stats_clear(struct file *file, char *buf, size_t size) +{ + struct seq_file *m = file->private_data; + struct rxrpc_net *rxnet = rxrpc_net(seq_file_single_net(m)); + + if (size > 1 || (size == 1 && buf[0] != '\n')) + return -EINVAL; + + atomic_set(&rxnet->stat_tx_data, 0); + atomic_set(&rxnet->stat_tx_data_retrans, 0); + atomic_set(&rxnet->stat_tx_data_underflow, 0); + atomic_set(&rxnet->stat_tx_data_cwnd_reset, 0); + atomic_set(&rxnet->stat_tx_data_send, 0); + atomic_set(&rxnet->stat_tx_data_send_frag, 0); + atomic_set(&rxnet->stat_tx_data_send_fail, 0); + atomic_set(&rxnet->stat_rx_data, 0); + atomic_set(&rxnet->stat_rx_data_reqack, 0); + atomic_set(&rxnet->stat_rx_data_jumbo, 0); + + atomic_set(&rxnet->stat_tx_ack_fill, 0); + atomic_set(&rxnet->stat_tx_ack_send, 0); + atomic_set(&rxnet->stat_tx_ack_skip, 0); + memset(&rxnet->stat_tx_acks, 0, sizeof(rxnet->stat_tx_acks)); + memset(&rxnet->stat_rx_acks, 0, sizeof(rxnet->stat_rx_acks)); + memset(&rxnet->stat_tx_jumbo, 0, sizeof(rxnet->stat_tx_jumbo)); + memset(&rxnet->stat_rx_jumbo, 0, sizeof(rxnet->stat_rx_jumbo)); + + memset(&rxnet->stat_why_req_ack, 0, sizeof(rxnet->stat_why_req_ack)); + + atomic_set(&rxnet->stat_io_loop, 0); + return size; +} |
