1219820Sjeff/* 2219820Sjeff * Copyright (c) 2008 Mellanox Technologies Ltd. All rights reserved. 3219820Sjeff * 4219820Sjeff * This software is available to you under a choice of one of two 5219820Sjeff * licenses. You may choose to be licensed under the terms of the GNU 6219820Sjeff * General Public License (GPL) Version 2, available from the file 7219820Sjeff * COPYING in the main directory of this source tree, or the 8219820Sjeff * OpenIB.org BSD license below: 9219820Sjeff * 10219820Sjeff * Redistribution and use in source and binary forms, with or 11219820Sjeff * without modification, are permitted provided that the following 12219820Sjeff * conditions are met: 13219820Sjeff * 14219820Sjeff * - Redistributions of source code must retain the above 15219820Sjeff * copyright notice, this list of conditions and the following 16219820Sjeff * disclaimer. 17219820Sjeff * 18219820Sjeff * - Redistributions in binary form must reproduce the above 19219820Sjeff * copyright notice, this list of conditions and the following 20219820Sjeff * disclaimer in the documentation and/or other materials 21219820Sjeff * provided with the distribution. 22219820Sjeff * 23219820Sjeff * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24219820Sjeff * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25219820Sjeff * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26219820Sjeff * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27219820Sjeff * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28219820Sjeff * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29219820Sjeff * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30219820Sjeff * SOFTWARE. 31219820Sjeff */ 32219820Sjeff 33219820Sjeff#include <linux/proc_fs.h> 34219820Sjeff#include "sdp.h" 35219820Sjeff 36219820Sjeff#ifdef CONFIG_PROC_FS 37219820Sjeff 38219820Sjeff#define PROC_SDP_STATS "sdpstats" 39219820Sjeff#define PROC_SDP_PERF "sdpprf" 40219820Sjeff 41219820Sjeff/* just like TCP fs */ 42219820Sjeffstruct sdp_seq_afinfo { 43219820Sjeff struct module *owner; 44219820Sjeff char *name; 45219820Sjeff sa_family_t family; 46219820Sjeff int (*seq_show) (struct seq_file *m, void *v); 47219820Sjeff struct file_operations *seq_fops; 48219820Sjeff}; 49219820Sjeff 50219820Sjeffstruct sdp_iter_state { 51219820Sjeff sa_family_t family; 52219820Sjeff int num; 53219820Sjeff struct seq_operations seq_ops; 54219820Sjeff}; 55219820Sjeff 56219820Sjeffstatic void *sdp_get_idx(struct seq_file *seq, loff_t pos) 57219820Sjeff{ 58219820Sjeff int i = 0; 59219820Sjeff struct sdp_sock *ssk; 60219820Sjeff 61219820Sjeff if (!list_empty(&sock_list)) 62219820Sjeff list_for_each_entry(ssk, &sock_list, sock_list) { 63219820Sjeff if (i == pos) 64219820Sjeff return ssk; 65219820Sjeff i++; 66219820Sjeff } 67219820Sjeff 68219820Sjeff return NULL; 69219820Sjeff} 70219820Sjeff 71219820Sjeffstatic void *sdp_seq_start(struct seq_file *seq, loff_t *pos) 72219820Sjeff{ 73219820Sjeff void *start = NULL; 74219820Sjeff struct sdp_iter_state *st = seq->private; 75219820Sjeff 76219820Sjeff st->num = 0; 77219820Sjeff 78219820Sjeff if (!*pos) 79219820Sjeff return SEQ_START_TOKEN; 80219820Sjeff 81219820Sjeff spin_lock_irq(&sock_list_lock); 82219820Sjeff start = sdp_get_idx(seq, *pos - 1); 83219820Sjeff if (start) 84219820Sjeff sock_hold((struct socket *)start, SOCK_REF_SEQ); 85219820Sjeff spin_unlock_irq(&sock_list_lock); 86219820Sjeff 87219820Sjeff return start; 88219820Sjeff} 89219820Sjeff 90219820Sjeffstatic void *sdp_seq_next(struct seq_file *seq, void *v, loff_t *pos) 91219820Sjeff{ 92219820Sjeff struct sdp_iter_state *st = seq->private; 93219820Sjeff void *next = NULL; 94219820Sjeff 95219820Sjeff spin_lock_irq(&sock_list_lock); 96219820Sjeff if (v == SEQ_START_TOKEN) 97219820Sjeff next = sdp_get_idx(seq, 0); 98219820Sjeff else 99219820Sjeff next = sdp_get_idx(seq, *pos); 100219820Sjeff if (next) 101219820Sjeff sock_hold((struct socket *)next, SOCK_REF_SEQ); 102219820Sjeff spin_unlock_irq(&sock_list_lock); 103219820Sjeff 104219820Sjeff *pos += 1; 105219820Sjeff st->num++; 106219820Sjeff 107219820Sjeff return next; 108219820Sjeff} 109219820Sjeff 110219820Sjeffstatic void sdp_seq_stop(struct seq_file *seq, void *v) 111219820Sjeff{ 112219820Sjeff} 113219820Sjeff 114219820Sjeff#define TMPSZ 150 115219820Sjeff 116219820Sjeffstatic int sdp_seq_show(struct seq_file *seq, void *v) 117219820Sjeff{ 118219820Sjeff struct sdp_iter_state *st; 119219820Sjeff struct socket *sk = v; 120219820Sjeff char tmpbuf[TMPSZ + 1]; 121219820Sjeff unsigned int dest; 122219820Sjeff unsigned int src; 123219820Sjeff int uid; 124219820Sjeff unsigned long inode; 125219820Sjeff __u16 destp; 126219820Sjeff __u16 srcp; 127219820Sjeff __u32 rx_queue, tx_queue; 128219820Sjeff 129219820Sjeff if (v == SEQ_START_TOKEN) { 130219820Sjeff seq_printf(seq, "%-*s\n", TMPSZ - 1, 131219820Sjeff " sl local_address rem_address " 132219820Sjeff "uid inode rx_queue tx_queue state"); 133219820Sjeff goto out; 134219820Sjeff } 135219820Sjeff 136219820Sjeff st = seq->private; 137219820Sjeff 138219820Sjeff dest = inet_sk(sk)->daddr; 139219820Sjeff src = inet_sk(sk)->rcv_saddr; 140219820Sjeff destp = ntohs(inet_sk(sk)->dport); 141219820Sjeff srcp = ntohs(inet_sk(sk)->sport); 142219820Sjeff uid = sock_i_uid(sk); 143219820Sjeff inode = sock_i_ino(sk); 144219820Sjeff rx_queue = rcv_nxt(sdp_sk(sk)) - sdp_sk(sk)->copied_seq; 145219820Sjeff tx_queue = sdp_sk(sk)->write_seq - sdp_sk(sk)->tx_ring.una_seq; 146219820Sjeff 147219820Sjeff sprintf(tmpbuf, "%4d: %08X:%04X %08X:%04X %5d %lu %08X:%08X %X", 148219820Sjeff st->num, src, srcp, dest, destp, uid, inode, 149219820Sjeff rx_queue, tx_queue, sk->sk_state); 150219820Sjeff 151219820Sjeff seq_printf(seq, "%-*s\n", TMPSZ - 1, tmpbuf); 152219820Sjeff 153219820Sjeff sock_put(sk, SOCK_REF_SEQ); 154219820Sjeffout: 155219820Sjeff return 0; 156219820Sjeff} 157219820Sjeff 158219820Sjeffstatic int sdp_seq_open(struct inode *inode, struct file *file) 159219820Sjeff{ 160219820Sjeff struct sdp_seq_afinfo *afinfo = PDE(inode)->data; 161219820Sjeff struct seq_file *seq; 162219820Sjeff struct sdp_iter_state *s; 163219820Sjeff int rc; 164219820Sjeff 165219820Sjeff if (unlikely(afinfo == NULL)) 166219820Sjeff return -EINVAL; 167219820Sjeff 168219820Sjeff/* Workaround bogus warning by memtrack */ 169219820Sjeff#define _kzalloc(size,flags) kzalloc(size,flags) 170219820Sjeff#undef kzalloc 171219820Sjeff s = kzalloc(sizeof(*s), GFP_KERNEL); 172219820Sjeff#define kzalloc(s,f) _kzalloc(s,f) 173219820Sjeff if (!s) 174219820Sjeff return -ENOMEM; 175219820Sjeff s->family = afinfo->family; 176219820Sjeff s->seq_ops.start = sdp_seq_start; 177219820Sjeff s->seq_ops.next = sdp_seq_next; 178219820Sjeff s->seq_ops.show = afinfo->seq_show; 179219820Sjeff s->seq_ops.stop = sdp_seq_stop; 180219820Sjeff 181219820Sjeff rc = seq_open(file, &s->seq_ops); 182219820Sjeff if (rc) 183219820Sjeff goto out_kfree; 184219820Sjeff seq = file->private_data; 185219820Sjeff seq->private = s; 186219820Sjeffout: 187219820Sjeff return rc; 188219820Sjeffout_kfree: 189219820Sjeff kfree(s); 190219820Sjeff goto out; 191219820Sjeff} 192219820Sjeff 193219820Sjeff 194219820Sjeffstatic struct file_operations sdp_seq_fops; 195219820Sjeffstatic struct sdp_seq_afinfo sdp_seq_afinfo = { 196219820Sjeff .owner = THIS_MODULE, 197219820Sjeff .name = "sdp", 198219820Sjeff .family = AF_INET_SDP, 199219820Sjeff .seq_show = sdp_seq_show, 200219820Sjeff .seq_fops = &sdp_seq_fops, 201219820Sjeff}; 202219820Sjeff 203219820Sjeff#ifdef SDPSTATS_ON 204219820SjeffDEFINE_PER_CPU(struct sdpstats, sdpstats); 205219820Sjeff 206219820Sjeffstatic void sdpstats_seq_hist(struct seq_file *seq, char *str, u32 *h, int n, 207219820Sjeff int is_log) 208219820Sjeff{ 209219820Sjeff int i; 210219820Sjeff u32 max = 0; 211219820Sjeff 212219820Sjeff seq_printf(seq, "%s:\n", str); 213219820Sjeff 214219820Sjeff for (i = 0; i < n; i++) { 215219820Sjeff if (h[i] > max) 216219820Sjeff max = h[i]; 217219820Sjeff } 218219820Sjeff 219219820Sjeff if (max == 0) { 220219820Sjeff seq_printf(seq, " - all values are 0\n"); 221219820Sjeff return; 222219820Sjeff } 223219820Sjeff 224219820Sjeff for (i = 0; i < n; i++) { 225219820Sjeff char s[51]; 226219820Sjeff int j = 50 * h[i] / max; 227219820Sjeff int val = is_log ? (i == n-1 ? 0 : 1<<i) : i; 228219820Sjeff memset(s, '*', j); 229219820Sjeff s[j] = '\0'; 230219820Sjeff 231219820Sjeff seq_printf(seq, "%10d | %-50s - %d\n", val, s, h[i]); 232219820Sjeff } 233219820Sjeff} 234219820Sjeff 235219820Sjeff#define SDPSTATS_COUNTER_GET(var) ({ \ 236219820Sjeff u32 __val = 0; \ 237219820Sjeff unsigned int __i; \ 238219820Sjeff for_each_possible_cpu(__i) \ 239219820Sjeff __val += per_cpu(sdpstats, __i).var; \ 240219820Sjeff __val; \ 241219820Sjeff}) 242219820Sjeff 243219820Sjeff#define SDPSTATS_HIST_GET(hist, hist_len, sum) ({ \ 244219820Sjeff unsigned int __i; \ 245219820Sjeff for_each_possible_cpu(__i) { \ 246219820Sjeff unsigned int __j; \ 247219820Sjeff u32 *h = per_cpu(sdpstats, __i).hist; \ 248219820Sjeff for (__j = 0; __j < hist_len; __j++) { \ 249219820Sjeff sum[__j] += h[__j]; \ 250219820Sjeff } \ 251219820Sjeff } \ 252219820Sjeff}) 253219820Sjeff 254219820Sjeff#define __sdpstats_seq_hist(seq, msg, hist, is_log) ({ \ 255219820Sjeff u32 tmp_hist[SDPSTATS_MAX_HIST_SIZE]; \ 256219820Sjeff int hist_len = ARRAY_SIZE(__get_cpu_var(sdpstats).hist);\ 257219820Sjeff memset(tmp_hist, 0, sizeof(tmp_hist)); \ 258219820Sjeff SDPSTATS_HIST_GET(hist, hist_len, tmp_hist); \ 259219820Sjeff sdpstats_seq_hist(seq, msg, tmp_hist, hist_len, is_log);\ 260219820Sjeff}) 261219820Sjeff 262219820Sjeffstatic int sdpstats_seq_show(struct seq_file *seq, void *v) 263219820Sjeff{ 264219820Sjeff int i; 265219820Sjeff 266219820Sjeff seq_printf(seq, "SDP statistics:\n"); 267219820Sjeff 268219820Sjeff __sdpstats_seq_hist(seq, "sendmsg_seglen", sendmsg_seglen, 1); 269219820Sjeff __sdpstats_seq_hist(seq, "send_size", send_size, 1); 270219820Sjeff __sdpstats_seq_hist(seq, "credits_before_update", 271219820Sjeff credits_before_update, 0); 272219820Sjeff 273219820Sjeff seq_printf(seq, "sdp_sendmsg() calls\t\t: %d\n", 274219820Sjeff SDPSTATS_COUNTER_GET(sendmsg)); 275219820Sjeff seq_printf(seq, "bcopy segments \t\t: %d\n", 276219820Sjeff SDPSTATS_COUNTER_GET(sendmsg_bcopy_segment)); 277219820Sjeff seq_printf(seq, "bzcopy segments \t\t: %d\n", 278219820Sjeff SDPSTATS_COUNTER_GET(sendmsg_bzcopy_segment)); 279219820Sjeff seq_printf(seq, "zcopy segments \t\t: %d\n", 280219820Sjeff SDPSTATS_COUNTER_GET(sendmsg_zcopy_segment)); 281219820Sjeff seq_printf(seq, "post_send_credits \t\t: %d\n", 282219820Sjeff SDPSTATS_COUNTER_GET(post_send_credits)); 283219820Sjeff seq_printf(seq, "memcpy_count \t\t: %u\n", 284219820Sjeff SDPSTATS_COUNTER_GET(memcpy_count)); 285219820Sjeff 286219820Sjeff for (i = 0; i < ARRAY_SIZE(__get_cpu_var(sdpstats).post_send); i++) { 287219820Sjeff if (mid2str(i)) { 288219820Sjeff seq_printf(seq, "post_send %-20s\t: %d\n", 289219820Sjeff mid2str(i), 290219820Sjeff SDPSTATS_COUNTER_GET(post_send[i])); 291219820Sjeff } 292219820Sjeff } 293219820Sjeff 294219820Sjeff seq_printf(seq, "\n"); 295219820Sjeff seq_printf(seq, "post_recv \t\t: %d\n", 296219820Sjeff SDPSTATS_COUNTER_GET(post_recv)); 297219820Sjeff seq_printf(seq, "BZCopy poll miss \t\t: %d\n", 298219820Sjeff SDPSTATS_COUNTER_GET(bzcopy_poll_miss)); 299219820Sjeff seq_printf(seq, "send_wait_for_mem \t\t: %d\n", 300219820Sjeff SDPSTATS_COUNTER_GET(send_wait_for_mem)); 301219820Sjeff seq_printf(seq, "send_miss_no_credits\t\t: %d\n", 302219820Sjeff SDPSTATS_COUNTER_GET(send_miss_no_credits)); 303219820Sjeff 304219820Sjeff seq_printf(seq, "rx_poll_miss \t\t: %d\n", SDPSTATS_COUNTER_GET(rx_poll_miss)); 305219820Sjeff seq_printf(seq, "tx_poll_miss \t\t: %d\n", SDPSTATS_COUNTER_GET(tx_poll_miss)); 306219820Sjeff seq_printf(seq, "tx_poll_busy \t\t: %d\n", SDPSTATS_COUNTER_GET(tx_poll_busy)); 307219820Sjeff seq_printf(seq, "tx_poll_hit \t\t: %d\n", SDPSTATS_COUNTER_GET(tx_poll_hit)); 308219820Sjeff 309219820Sjeff seq_printf(seq, "CQ stats:\n"); 310219820Sjeff seq_printf(seq, "- RX interrupts\t\t: %d\n", SDPSTATS_COUNTER_GET(rx_int_count)); 311219820Sjeff seq_printf(seq, "- TX interrupts\t\t: %d\n", SDPSTATS_COUNTER_GET(tx_int_count)); 312219820Sjeff 313219820Sjeff seq_printf(seq, "ZCopy stats:\n"); 314219820Sjeff seq_printf(seq, "- TX timeout\t\t: %d\n", SDPSTATS_COUNTER_GET(zcopy_tx_timeout)); 315219820Sjeff seq_printf(seq, "- TX cross send\t\t: %d\n", SDPSTATS_COUNTER_GET(zcopy_cross_send)); 316219820Sjeff seq_printf(seq, "- TX aborted by peer\t: %d\n", SDPSTATS_COUNTER_GET(zcopy_tx_aborted)); 317219820Sjeff seq_printf(seq, "- TX error\t\t: %d\n", SDPSTATS_COUNTER_GET(zcopy_tx_error)); 318219820Sjeff return 0; 319219820Sjeff} 320219820Sjeff 321219820Sjeffstatic ssize_t sdpstats_write(struct file *file, const char __user *buf, 322219820Sjeff size_t count, loff_t *offs) 323219820Sjeff{ 324219820Sjeff int i; 325219820Sjeff 326219820Sjeff for_each_possible_cpu(i) 327219820Sjeff memset(&per_cpu(sdpstats, i), 0, sizeof(struct sdpstats)); 328219820Sjeff printk(KERN_WARNING "Cleared sdp statistics\n"); 329219820Sjeff 330219820Sjeff return count; 331219820Sjeff} 332219820Sjeff 333219820Sjeffstatic int sdpstats_seq_open(struct inode *inode, struct file *file) 334219820Sjeff{ 335219820Sjeff return single_open(file, sdpstats_seq_show, NULL); 336219820Sjeff} 337219820Sjeff 338219820Sjeffstatic struct file_operations sdpstats_fops = { 339219820Sjeff .owner = THIS_MODULE, 340219820Sjeff .open = sdpstats_seq_open, 341219820Sjeff .read = seq_read, 342219820Sjeff .write = sdpstats_write, 343219820Sjeff .llseek = seq_lseek, 344219820Sjeff .release = single_release, 345219820Sjeff}; 346219820Sjeff 347219820Sjeff#endif 348219820Sjeff 349219820Sjeff#ifdef SDP_PROFILING 350219820Sjeffstruct sdpprf_log sdpprf_log[SDPPRF_LOG_SIZE]; 351219820Sjeffint sdpprf_log_count; 352219820Sjeff 353219820Sjeffstatic unsigned long long start_t; 354219820Sjeff 355219820Sjeffstatic int sdpprf_show(struct seq_file *m, void *v) 356219820Sjeff{ 357219820Sjeff struct sdpprf_log *l = v; 358219820Sjeff unsigned long nsec_rem, t; 359219820Sjeff 360219820Sjeff if (!sdpprf_log_count) { 361219820Sjeff seq_printf(m, "No performance logs\n"); 362219820Sjeff goto out; 363219820Sjeff } 364219820Sjeff 365219820Sjeff t = l->time - start_t; 366219820Sjeff nsec_rem = do_div(t, 1000000000); 367219820Sjeff 368219820Sjeff seq_printf(m, "%-6d: [%5lu.%06lu] %-50s - [%d{%d} %d:%d] " 369219820Sjeff "mb: %p %s:%d\n", 370219820Sjeff l->idx, (unsigned long)t, nsec_rem/1000, 371219820Sjeff l->msg, l->pid, l->cpu, l->sk_num, l->sk_dport, 372219820Sjeff l->mb, l->func, l->line); 373219820Sjeffout: 374219820Sjeff return 0; 375219820Sjeff} 376219820Sjeff 377219820Sjeffstatic void *sdpprf_start(struct seq_file *p, loff_t *pos) 378219820Sjeff{ 379219820Sjeff int idx = *pos; 380219820Sjeff 381219820Sjeff if (!*pos) { 382219820Sjeff if (!sdpprf_log_count) 383219820Sjeff return SEQ_START_TOKEN; 384219820Sjeff } 385219820Sjeff 386219820Sjeff if (*pos >= MIN(sdpprf_log_count, SDPPRF_LOG_SIZE - 1)) 387219820Sjeff return NULL; 388219820Sjeff 389219820Sjeff if (sdpprf_log_count >= SDPPRF_LOG_SIZE - 1) { 390219820Sjeff int off = sdpprf_log_count & (SDPPRF_LOG_SIZE - 1); 391219820Sjeff idx = (idx + off) & (SDPPRF_LOG_SIZE - 1); 392219820Sjeff 393219820Sjeff } 394219820Sjeff 395219820Sjeff if (!start_t) 396219820Sjeff start_t = sdpprf_log[idx].time; 397219820Sjeff return &sdpprf_log[idx]; 398219820Sjeff} 399219820Sjeff 400219820Sjeffstatic void *sdpprf_next(struct seq_file *p, void *v, loff_t *pos) 401219820Sjeff{ 402219820Sjeff struct sdpprf_log *l = v; 403219820Sjeff 404219820Sjeff if (++*pos >= MIN(sdpprf_log_count, SDPPRF_LOG_SIZE - 1)) 405219820Sjeff return NULL; 406219820Sjeff 407219820Sjeff ++l; 408219820Sjeff if (l - &sdpprf_log[0] >= SDPPRF_LOG_SIZE - 1) 409219820Sjeff return &sdpprf_log[0]; 410219820Sjeff 411219820Sjeff return l; 412219820Sjeff} 413219820Sjeff 414219820Sjeffstatic void sdpprf_stop(struct seq_file *p, void *v) 415219820Sjeff{ 416219820Sjeff} 417219820Sjeff 418219820Sjeffstatic struct seq_operations sdpprf_ops = { 419219820Sjeff .start = sdpprf_start, 420219820Sjeff .stop = sdpprf_stop, 421219820Sjeff .next = sdpprf_next, 422219820Sjeff .show = sdpprf_show, 423219820Sjeff}; 424219820Sjeff 425219820Sjeffstatic int sdpprf_open(struct inode *inode, struct file *file) 426219820Sjeff{ 427219820Sjeff int res; 428219820Sjeff 429219820Sjeff res = seq_open(file, &sdpprf_ops); 430219820Sjeff 431219820Sjeff return res; 432219820Sjeff} 433219820Sjeff 434219820Sjeffstatic ssize_t sdpprf_write(struct file *file, const char __user *buf, 435219820Sjeff size_t count, loff_t *offs) 436219820Sjeff{ 437219820Sjeff sdpprf_log_count = 0; 438219820Sjeff printk(KERN_INFO "Cleared sdpprf statistics\n"); 439219820Sjeff 440219820Sjeff return count; 441219820Sjeff} 442219820Sjeff 443219820Sjeffstatic struct file_operations sdpprf_fops = { 444219820Sjeff .open = sdpprf_open, 445219820Sjeff .read = seq_read, 446219820Sjeff .llseek = seq_lseek, 447219820Sjeff .release = seq_release, 448219820Sjeff .write = sdpprf_write, 449219820Sjeff}; 450219820Sjeff#endif /* SDP_PROFILING */ 451219820Sjeff 452219820Sjeffint __init sdp_proc_init(void) 453219820Sjeff{ 454219820Sjeff struct proc_dir_entry *p = NULL; 455219820Sjeff#ifdef SDPSTATS_ON 456219820Sjeff struct proc_dir_entry *stats = NULL; 457219820Sjeff#endif 458219820Sjeff#ifdef SDP_PROFILING 459219820Sjeff struct proc_dir_entry *prof = NULL; 460219820Sjeff#endif 461219820Sjeff 462219820Sjeff sdp_seq_afinfo.seq_fops->owner = sdp_seq_afinfo.owner; 463219820Sjeff sdp_seq_afinfo.seq_fops->open = sdp_seq_open; 464219820Sjeff sdp_seq_afinfo.seq_fops->read = seq_read; 465219820Sjeff sdp_seq_afinfo.seq_fops->llseek = seq_lseek; 466219820Sjeff sdp_seq_afinfo.seq_fops->release = seq_release_private; 467219820Sjeff 468219820Sjeff p = proc_net_fops_create(&init_net, sdp_seq_afinfo.name, S_IRUGO, 469219820Sjeff sdp_seq_afinfo.seq_fops); 470219820Sjeff if (p) 471219820Sjeff p->data = &sdp_seq_afinfo; 472219820Sjeff else 473219820Sjeff goto no_mem; 474219820Sjeff 475219820Sjeff#ifdef SDPSTATS_ON 476219820Sjeff 477219820Sjeff stats = proc_net_fops_create(&init_net, PROC_SDP_STATS, 478219820Sjeff S_IRUGO | S_IWUGO, &sdpstats_fops); 479219820Sjeff if (!stats) 480219820Sjeff goto no_mem_stats; 481219820Sjeff 482219820Sjeff#endif 483219820Sjeff 484219820Sjeff#ifdef SDP_PROFILING 485219820Sjeff prof = proc_net_fops_create(&init_net, PROC_SDP_PERF, 486219820Sjeff S_IRUGO | S_IWUGO, &sdpprf_fops); 487219820Sjeff if (!prof) 488219820Sjeff goto no_mem_prof; 489219820Sjeff#endif 490219820Sjeff 491219820Sjeff return 0; 492219820Sjeff 493219820Sjeff#ifdef SDP_PROFILING 494219820Sjeffno_mem_prof: 495219820Sjeff#endif 496219820Sjeff 497219820Sjeff#ifdef SDPSTATS_ON 498219820Sjeff proc_net_remove(&init_net, PROC_SDP_STATS); 499219820Sjeff 500219820Sjeffno_mem_stats: 501219820Sjeff#endif 502219820Sjeff proc_net_remove(&init_net, sdp_seq_afinfo.name); 503219820Sjeff 504219820Sjeffno_mem: 505219820Sjeff return -ENOMEM; 506219820Sjeff} 507219820Sjeff 508219820Sjeffvoid sdp_proc_unregister(void) 509219820Sjeff{ 510219820Sjeff proc_net_remove(&init_net, sdp_seq_afinfo.name); 511219820Sjeff memset(sdp_seq_afinfo.seq_fops, 0, sizeof(*sdp_seq_afinfo.seq_fops)); 512219820Sjeff 513219820Sjeff#ifdef SDPSTATS_ON 514219820Sjeff proc_net_remove(&init_net, PROC_SDP_STATS); 515219820Sjeff#endif 516219820Sjeff#ifdef SDP_PROFILING 517219820Sjeff proc_net_remove(&init_net, PROC_SDP_PERF); 518219820Sjeff#endif 519219820Sjeff} 520219820Sjeff 521219820Sjeff#else /* CONFIG_PROC_FS */ 522219820Sjeff 523219820Sjeffint __init sdp_proc_init(void) 524219820Sjeff{ 525219820Sjeff return 0; 526219820Sjeff} 527219820Sjeff 528219820Sjeffvoid sdp_proc_unregister(void) 529219820Sjeff{ 530219820Sjeff 531219820Sjeff} 532219820Sjeff#endif /* CONFIG_PROC_FS */ 533