X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lnet%2Flnet%2Frouter_proc.c;h=95d34c9b68b4f4be0c5d9320df7e2fcb82de12b0;hp=77571e582b6cc691e8c1d55126641b0dfa2710bf;hb=339c7b2b784a528f41c432e9b90285d3445b7536;hpb=4588fda6626ef5f8b043c185be69211ddfae57b1 diff --git a/lnet/lnet/router_proc.c b/lnet/lnet/router_proc.c index 77571e5..95d34c9 100644 --- a/lnet/lnet/router_proc.c +++ b/lnet/lnet/router_proc.c @@ -1,7 +1,7 @@ -/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- - * vim:expandtab:shiftwidth=8:tabstop=8: +/* + * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. * - * Copyright 2008 Sun Microsystems, Inc. All rights reserved + * Copyright (c) 2011, 2013, Intel Corporation. * * This file is part of Portals * http://sourceforge.net/projects/sandiaportals/ @@ -27,1092 +27,917 @@ #if defined(__KERNEL__) && defined(LNET_ROUTER) -#if defined(__linux__) -#include -#endif - -/* this is really lnet_proc.c */ +/* This is really lnet_proc.c. You might need to update sanity test 215 + * if any file format is changed. */ -#define LNET_PROC_ROOT "sys/lnet" -#define LNET_PROC_STATS LNET_PROC_ROOT"/stats" -#define LNET_PROC_ROUTES LNET_PROC_ROOT"/routes" -#define LNET_PROC_ROUTERS LNET_PROC_ROOT"/routers" -#define LNET_PROC_PEERS LNET_PROC_ROOT"/peers" -#define LNET_PROC_BUFFERS LNET_PROC_ROOT"/buffers" -#define LNET_PROC_NIS LNET_PROC_ROOT"/nis" +static struct ctl_table_header *lnet_table_header = NULL; -static int -lnet_router_proc_stats_read (char *page, char **start, off_t off, - int count, int *eof, void *data) -{ - lnet_counters_t *ctrs; - int rc; - - *start = page; - *eof = 1; - if (off != 0) - return 0; +#define LNET_LOFFT_BITS (sizeof(loff_t) * 8) +/* + * NB: max allowed LNET_CPT_BITS is 8 on 64-bit system and 2 on 32-bit system + */ +#define LNET_PROC_CPT_BITS (LNET_CPT_BITS + 1) +/* change version, 16 bits or 8 bits */ +#define LNET_PROC_VER_BITS MAX(((MIN(LNET_LOFFT_BITS, 64)) / 4), 8) + +#define LNET_PROC_HASH_BITS LNET_PEER_HASH_BITS +/* + * bits for peer hash offset + * NB: we don't use the highest bit of *ppos because it's signed + */ +#define LNET_PROC_HOFF_BITS (LNET_LOFFT_BITS - \ + LNET_PROC_CPT_BITS - \ + LNET_PROC_VER_BITS - \ + LNET_PROC_HASH_BITS - 1) +/* bits for hash index + position */ +#define LNET_PROC_HPOS_BITS (LNET_PROC_HASH_BITS + LNET_PROC_HOFF_BITS) +/* bits for peer hash table + hash version */ +#define LNET_PROC_VPOS_BITS (LNET_PROC_HPOS_BITS + LNET_PROC_VER_BITS) - LIBCFS_ALLOC(ctrs, sizeof(*ctrs)); - if (ctrs == NULL) - return -ENOMEM; +#define LNET_PROC_CPT_MASK ((1ULL << LNET_PROC_CPT_BITS) - 1) +#define LNET_PROC_VER_MASK ((1ULL << LNET_PROC_VER_BITS) - 1) +#define LNET_PROC_HASH_MASK ((1ULL << LNET_PROC_HASH_BITS) - 1) +#define LNET_PROC_HOFF_MASK ((1ULL << LNET_PROC_HOFF_BITS) - 1) - LNET_LOCK(); - *ctrs = the_lnet.ln_counters; - LNET_UNLOCK(); +#define LNET_PROC_CPT_GET(pos) \ + (int)(((pos) >> LNET_PROC_VPOS_BITS) & LNET_PROC_CPT_MASK) - rc = sprintf(page, - "%u %u %u %u %u %u %u "LPU64" "LPU64" "LPU64" "LPU64"\n", - ctrs->msgs_alloc, ctrs->msgs_max, - ctrs->errors, - ctrs->send_count, ctrs->recv_count, - ctrs->route_count, ctrs->drop_count, - ctrs->send_length, ctrs->recv_length, - ctrs->route_length, ctrs->drop_length); +#define LNET_PROC_VER_GET(pos) \ + (int)(((pos) >> LNET_PROC_HPOS_BITS) & LNET_PROC_VER_MASK) - LIBCFS_FREE(ctrs, sizeof(*ctrs)); - return rc; -} +#define LNET_PROC_HASH_GET(pos) \ + (int)(((pos) >> LNET_PROC_HOFF_BITS) & LNET_PROC_HASH_MASK) -static int -lnet_router_proc_stats_write(struct file *file, const char *ubuffer, - unsigned long count, void *data) -{ - LNET_LOCK(); - memset(&the_lnet.ln_counters, 0, sizeof(the_lnet.ln_counters)); - LNET_UNLOCK(); +#define LNET_PROC_HOFF_GET(pos) \ + (int)((pos) & LNET_PROC_HOFF_MASK) - return (count); -} +#define LNET_PROC_POS_MAKE(cpt, ver, hash, off) \ + (((((loff_t)(cpt)) & LNET_PROC_CPT_MASK) << LNET_PROC_VPOS_BITS) | \ + ((((loff_t)(ver)) & LNET_PROC_VER_MASK) << LNET_PROC_HPOS_BITS) | \ + ((((loff_t)(hash)) & LNET_PROC_HASH_MASK) << LNET_PROC_HOFF_BITS) | \ + ((off) & LNET_PROC_HOFF_MASK)) -typedef struct { - __u64 lrsi_version; - lnet_remotenet_t *lrsi_net; - lnet_route_t *lrsi_route; - loff_t lrsi_off; -} lnet_route_seq_iterator_t; +#define LNET_PROC_VERSION(v) ((unsigned int)((v) & LNET_PROC_VER_MASK)) -int -lnet_route_seq_seek (lnet_route_seq_iterator_t *lrsi, loff_t off) +static int __proc_lnet_stats(void *data, int write, + loff_t pos, void __user *buffer, int nob) { - struct list_head *n; - struct list_head *r; - int rc; - loff_t here; - - if (off == 0) { - lrsi->lrsi_net = NULL; - lrsi->lrsi_route = NULL; - lrsi->lrsi_off = 0; - return 0; - } - - LNET_LOCK(); + int rc; + lnet_counters_t *ctrs; + int len; + char *tmpstr; + const int tmpsiz = 256; /* 7 %u and 4 LPU64 */ - if (lrsi->lrsi_net != NULL && - lrsi->lrsi_version != the_lnet.ln_remote_nets_version) { - /* tables have changed */ - rc = -ESTALE; - goto out; + if (write) { + lnet_counters_reset(); + return 0; } - if (lrsi->lrsi_net == NULL || lrsi->lrsi_off > off) { - /* search from start */ - n = the_lnet.ln_remote_nets.next; - r = NULL; - here = 1; - } else { - /* continue search */ - n = &lrsi->lrsi_net->lrn_list; - r = &lrsi->lrsi_route->lr_list; - here = lrsi->lrsi_off; - } + /* read */ - lrsi->lrsi_version = the_lnet.ln_remote_nets_version; - lrsi->lrsi_off = off; - - while (n != &the_lnet.ln_remote_nets) { - lnet_remotenet_t *rnet = - list_entry(n, lnet_remotenet_t, lrn_list); - - if (r == NULL) - r = rnet->lrn_routes.next; - - while (r != &rnet->lrn_routes) { - lnet_route_t *re = - list_entry(r, lnet_route_t, - lr_list); - - if (here == off) { - lrsi->lrsi_net = rnet; - lrsi->lrsi_route = re; - rc = 0; - goto out; - } - - r = r->next; - here++; - } + LIBCFS_ALLOC(ctrs, sizeof(*ctrs)); + if (ctrs == NULL) + return -ENOMEM; - r = NULL; - n = n->next; + LIBCFS_ALLOC(tmpstr, tmpsiz); + if (tmpstr == NULL) { + LIBCFS_FREE(ctrs, sizeof(*ctrs)); + return -ENOMEM; } - lrsi->lrsi_net = NULL; - lrsi->lrsi_route = NULL; - rc = -ENOENT; - out: - LNET_UNLOCK(); - return rc; -} - -static void * -lnet_route_seq_start (struct seq_file *s, loff_t *pos) -{ - lnet_route_seq_iterator_t *lrsi; - int rc; + lnet_counters_get(ctrs); - LIBCFS_ALLOC(lrsi, sizeof(*lrsi)); - if (lrsi == NULL) - return NULL; - - lrsi->lrsi_net = NULL; - rc = lnet_route_seq_seek(lrsi, *pos); - if (rc == 0) - return lrsi; - - LIBCFS_FREE(lrsi, sizeof(*lrsi)); - return NULL; -} - -static void -lnet_route_seq_stop (struct seq_file *s, void *iter) -{ - lnet_route_seq_iterator_t *lrsi = iter; - - if (lrsi != NULL) - LIBCFS_FREE(lrsi, sizeof(*lrsi)); -} + len = snprintf(tmpstr, tmpsiz, + "%u %u %u %u %u %u %u "LPU64" "LPU64" " + LPU64" "LPU64, + ctrs->msgs_alloc, ctrs->msgs_max, + ctrs->errors, + ctrs->send_count, ctrs->recv_count, + ctrs->route_count, ctrs->drop_count, + ctrs->send_length, ctrs->recv_length, + ctrs->route_length, ctrs->drop_length); -static void * -lnet_route_seq_next (struct seq_file *s, void *iter, loff_t *pos) -{ - lnet_route_seq_iterator_t *lrsi = iter; - int rc; - loff_t next = *pos + 1; - - rc = lnet_route_seq_seek(lrsi, next); - if (rc != 0) { - LIBCFS_FREE(lrsi, sizeof(*lrsi)); - return NULL; - } + if (pos >= min_t(int, len, strlen(tmpstr))) + rc = 0; + else + rc = cfs_trace_copyout_string(buffer, nob, + tmpstr + pos, "\n"); - *pos = next; - return lrsi; + LIBCFS_FREE(tmpstr, tmpsiz); + LIBCFS_FREE(ctrs, sizeof(*ctrs)); + return rc; } static int -lnet_route_seq_show (struct seq_file *s, void *iter) +proc_lnet_stats(struct ctl_table *table, int write, void __user *buffer, + size_t *lenp, loff_t *ppos) { - lnet_route_seq_iterator_t *lrsi = iter; - __u32 net; - unsigned int hops; - lnet_nid_t nid; - int alive; - - if (lrsi->lrsi_off == 0) { - seq_printf(s, "Routing %s\n", - the_lnet.ln_routing ? "enabled" : "disabled"); - seq_printf(s, "%-8s %4s %7s %s\n", - "net", "hops", "state", "router"); - return 0; - } - - LASSERT (lrsi->lrsi_net != NULL); - LASSERT (lrsi->lrsi_route != NULL); - - LNET_LOCK(); - - if (lrsi->lrsi_version != the_lnet.ln_remote_nets_version) { - LNET_UNLOCK(); - return -ESTALE; - } - - net = lrsi->lrsi_net->lrn_net; - hops = lrsi->lrsi_net->lrn_hops; - nid = lrsi->lrsi_route->lr_gateway->lp_nid; - alive = lrsi->lrsi_route->lr_gateway->lp_alive; - - LNET_UNLOCK(); - - seq_printf(s, "%-8s %4u %7s %s\n", libcfs_net2str(net), hops, - alive ? "up" : "down", libcfs_nid2str(nid)); - return 0; + return lprocfs_call_handler(table->data, write, ppos, buffer, lenp, + __proc_lnet_stats); } -static struct seq_operations lnet_routes_sops = { - /* start */ lnet_route_seq_start, - /* stop */ lnet_route_seq_stop, - /* next */ lnet_route_seq_next, - /* show */ lnet_route_seq_show, -}; - static int -lnet_route_seq_open(struct inode *inode, struct file *file) +proc_lnet_routes(struct ctl_table *table, int write, void __user *buffer, + size_t *lenp, loff_t *ppos) { - struct proc_dir_entry *dp = PDE(inode); - struct seq_file *sf; - int rc; - - rc = seq_open(file, &lnet_routes_sops); - if (rc == 0) { - sf = file->private_data; - sf->private = dp->data; - } + const int tmpsiz = 256; + char *tmpstr; + char *s; + int rc = 0; + int len; + int ver; + int off; - return rc; -} + CLASSERT(sizeof(loff_t) >= 4); -static struct file_operations lnet_routes_fops; + off = LNET_PROC_HOFF_GET(*ppos); + ver = LNET_PROC_VER_GET(*ppos); -static void -lnet_init_routes_fops(void) -{ - lnet_routes_fops.owner = THIS_MODULE; - lnet_routes_fops.llseek = seq_lseek; - lnet_routes_fops.read = seq_read; - lnet_routes_fops.open = lnet_route_seq_open; - lnet_routes_fops.release = seq_release; -} + LASSERT (!write); -typedef struct { - __u64 lrtrsi_version; - lnet_peer_t *lrtrsi_router; - loff_t lrtrsi_off; -} lnet_router_seq_iterator_t; - -int -lnet_router_seq_seek (lnet_router_seq_iterator_t *lrtrsi, loff_t off) -{ - struct list_head *r; - lnet_peer_t *lp; - int rc; - loff_t here; - - if (off == 0) { - lrtrsi->lrtrsi_router = NULL; - lrtrsi->lrtrsi_off = 0; + if (*lenp == 0) return 0; - } - - LNET_LOCK(); - lp = lrtrsi->lrtrsi_router; - - if (lp != NULL && - lrtrsi->lrtrsi_version != the_lnet.ln_routers_version) { - /* tables have changed */ - rc = -ESTALE; - goto out; - } - - if (lp == NULL || lrtrsi->lrtrsi_off > off) { - /* search from start */ - r = the_lnet.ln_routers.next; - here = 1; - } else { - /* continue search */ - r = &lp->lp_rtr_list; - here = lrtrsi->lrtrsi_off; - } - - lrtrsi->lrtrsi_version = the_lnet.ln_routers_version; - lrtrsi->lrtrsi_off = off; - - while (r != &the_lnet.ln_routers) { - lnet_peer_t *rtr = list_entry(r, - lnet_peer_t, - lp_rtr_list); + LIBCFS_ALLOC(tmpstr, tmpsiz); + if (tmpstr == NULL) + return -ENOMEM; - if (here == off) { - lrtrsi->lrtrsi_router = rtr; - rc = 0; - goto out; + s = tmpstr; /* points to current position in tmpstr[] */ + + if (*ppos == 0) { + s += snprintf(s, tmpstr + tmpsiz - s, "Routing %s\n", + the_lnet.ln_routing ? "enabled" : "disabled"); + LASSERT (tmpstr + tmpsiz - s > 0); + + s += snprintf(s, tmpstr + tmpsiz - s, "%-8s %4s %8s %7s %s\n", + "net", "hops", "priority", "state", "router"); + LASSERT (tmpstr + tmpsiz - s > 0); + + lnet_net_lock(0); + ver = (unsigned int)the_lnet.ln_remote_nets_version; + lnet_net_unlock(0); + *ppos = LNET_PROC_POS_MAKE(0, ver, 0, off); + } else { + struct list_head *n; + struct list_head *r; + lnet_route_t *route = NULL; + lnet_remotenet_t *rnet = NULL; + int skip = off - 1; + struct list_head *rn_list; + int i; + + lnet_net_lock(0); + + if (ver != LNET_PROC_VERSION(the_lnet.ln_remote_nets_version)) { + lnet_net_unlock(0); + LIBCFS_FREE(tmpstr, tmpsiz); + return -ESTALE; + } + + for (i = 0; i < LNET_REMOTE_NETS_HASH_SIZE && route == NULL; + i++) { + rn_list = &the_lnet.ln_remote_nets_hash[i]; + + n = rn_list->next; + + while (n != rn_list && route == NULL) { + rnet = list_entry(n, lnet_remotenet_t, + lrn_list); + + r = rnet->lrn_routes.next; + + while (r != &rnet->lrn_routes) { + lnet_route_t *re = + list_entry(r, lnet_route_t, + lr_list); + if (skip == 0) { + route = re; + break; + } + + skip--; + r = r->next; + } + + n = n->next; + } + } + + if (route != NULL) { + __u32 net = rnet->lrn_net; + unsigned int hops = route->lr_hops; + unsigned int priority = route->lr_priority; + lnet_nid_t nid = route->lr_gateway->lp_nid; + int alive = lnet_is_route_alive(route); + + s += snprintf(s, tmpstr + tmpsiz - s, + "%-8s %4u %8u %7s %s\n", + libcfs_net2str(net), hops, + priority, + alive ? "up" : "down", + libcfs_nid2str(nid)); + LASSERT(tmpstr + tmpsiz - s > 0); + } + + lnet_net_unlock(0); + } + + len = s - tmpstr; /* how many bytes was written */ + + if (len > *lenp) { /* linux-supplied buffer is too small */ + rc = -EINVAL; + } else if (len > 0) { /* wrote something */ + if (copy_to_user(buffer, tmpstr, len)) + rc = -EFAULT; + else { + off += 1; + *ppos = LNET_PROC_POS_MAKE(0, ver, 0, off); } - - r = r->next; - here++; } - lrtrsi->lrtrsi_router = NULL; - rc = -ENOENT; - out: - LNET_UNLOCK(); - return rc; -} - -static void * -lnet_router_seq_start (struct seq_file *s, loff_t *pos) -{ - lnet_router_seq_iterator_t *lrtrsi; - int rc; + LIBCFS_FREE(tmpstr, tmpsiz); - LIBCFS_ALLOC(lrtrsi, sizeof(*lrtrsi)); - if (lrtrsi == NULL) - return NULL; - - lrtrsi->lrtrsi_router = NULL; - rc = lnet_router_seq_seek(lrtrsi, *pos); if (rc == 0) - return lrtrsi; - - LIBCFS_FREE(lrtrsi, sizeof(*lrtrsi)); - return NULL; -} - -static void -lnet_router_seq_stop (struct seq_file *s, void *iter) -{ - lnet_router_seq_iterator_t *lrtrsi = iter; - - if (lrtrsi != NULL) - LIBCFS_FREE(lrtrsi, sizeof(*lrtrsi)); -} - -static void * -lnet_router_seq_next (struct seq_file *s, void *iter, loff_t *pos) -{ - lnet_router_seq_iterator_t *lrtrsi = iter; - int rc; - loff_t next = *pos + 1; - - rc = lnet_router_seq_seek(lrtrsi, next); - if (rc != 0) { - LIBCFS_FREE(lrtrsi, sizeof(*lrtrsi)); - return NULL; - } - - *pos = next; - return lrtrsi; -} + *lenp = len; -static int -lnet_router_seq_show (struct seq_file *s, void *iter) -{ - lnet_router_seq_iterator_t *lrtrsi = iter; - lnet_peer_t *lp; - lnet_nid_t nid; - int alive; - int alive_cnt; - int nrefs; - int nrtrrefs; - time_t last_ping; - - if (lrtrsi->lrtrsi_off == 0) { - seq_printf(s, "%-4s %7s %9s %6s %12s %s\n", - "ref", "rtr_ref", "alive_cnt", "state", "last_ping", "router"); - return 0; - } - - lp = lrtrsi->lrtrsi_router; - LASSERT (lp != NULL); - - LNET_LOCK(); - - if (lrtrsi->lrtrsi_version != the_lnet.ln_routers_version) { - LNET_UNLOCK(); - return -ESTALE; - } - - nid = lp->lp_nid; - alive = lp->lp_alive; - alive_cnt = lp->lp_alive_count; - nrefs = lp->lp_refcount; - nrtrrefs = lp->lp_rtr_refcount; - last_ping = lp->lp_ping_timestamp; - - LNET_UNLOCK(); - - seq_printf(s, - "%-4d %7d %9d %6s %12lu %s\n", nrefs, nrtrrefs, - alive_cnt, alive ? "up" : "down", - last_ping, libcfs_nid2str(nid)); - return 0; + return rc; } -static struct seq_operations lnet_routers_sops = { - /* start */ lnet_router_seq_start, - /* stop */ lnet_router_seq_stop, - /* next */ lnet_router_seq_next, - /* show */ lnet_router_seq_show, -}; - static int -lnet_router_seq_open(struct inode *inode, struct file *file) +proc_lnet_routers(struct ctl_table *table, int write, void __user *buffer, + size_t *lenp, loff_t *ppos) { - struct proc_dir_entry *dp = PDE(inode); - struct seq_file *sf; - int rc; - - rc = seq_open(file, &lnet_routers_sops); - if (rc == 0) { - sf = file->private_data; - sf->private = dp->data; - } + int rc = 0; + char *tmpstr; + char *s; + const int tmpsiz = 256; + int len; + int ver; + int off; - return rc; -} + off = LNET_PROC_HOFF_GET(*ppos); + ver = LNET_PROC_VER_GET(*ppos); -static struct file_operations lnet_routers_fops; + LASSERT (!write); -static void -lnet_init_routers_fops(void) -{ - lnet_routers_fops.owner = THIS_MODULE; - lnet_routers_fops.llseek = seq_lseek; - lnet_routers_fops.read = seq_read; - lnet_routers_fops.open = lnet_router_seq_open; - lnet_routers_fops.release = seq_release; -} - -typedef struct { - unsigned long long lpsi_version; - int lpsi_idx; - lnet_peer_t *lpsi_peer; - loff_t lpsi_off; -} lnet_peer_seq_iterator_t; - -int -lnet_peer_seq_seek (lnet_peer_seq_iterator_t *lpsi, loff_t off) -{ - int idx; - struct list_head *p; - loff_t here; - int rc; - - if (off == 0) { - lpsi->lpsi_idx = 0; - lpsi->lpsi_peer = NULL; - lpsi->lpsi_off = 0; + if (*lenp == 0) return 0; - } - LNET_LOCK(); - - if (lpsi->lpsi_peer != NULL && - lpsi->lpsi_version != the_lnet.ln_peertable_version) { - /* tables have changed */ - rc = -ESTALE; - goto out; - } + LIBCFS_ALLOC(tmpstr, tmpsiz); + if (tmpstr == NULL) + return -ENOMEM; - if (lpsi->lpsi_peer == NULL || - lpsi->lpsi_off > off) { - /* search from start */ - idx = 0; - p = NULL; - here = 1; - } else { - /* continue search */ - idx = lpsi->lpsi_idx; - p = &lpsi->lpsi_peer->lp_hashlist; - here = lpsi->lpsi_off; - } + s = tmpstr; /* points to current position in tmpstr[] */ - lpsi->lpsi_version = the_lnet.ln_peertable_version; - lpsi->lpsi_off = off; + if (*ppos == 0) { + s += snprintf(s, tmpstr + tmpsiz - s, + "%-4s %7s %9s %6s %12s %9s %8s %7s %s\n", + "ref", "rtr_ref", "alive_cnt", "state", + "last_ping", "ping_sent", "deadline", + "down_ni", "router"); + LASSERT(tmpstr + tmpsiz - s > 0); - while (idx < LNET_PEER_HASHSIZE) { - if (p == NULL) - p = the_lnet.ln_peer_hash[idx].next; + lnet_net_lock(0); + ver = (unsigned int)the_lnet.ln_routers_version; + lnet_net_unlock(0); + *ppos = LNET_PROC_POS_MAKE(0, ver, 0, off); + } else { + struct list_head *r; + struct lnet_peer *peer = NULL; + int skip = off - 1; - while (p != &the_lnet.ln_peer_hash[idx]) { - lnet_peer_t *lp = list_entry(p, lnet_peer_t, - lp_hashlist); + lnet_net_lock(0); - if (here == off) { - lpsi->lpsi_idx = idx; - lpsi->lpsi_peer = lp; - rc = 0; - goto out; - } + if (ver != LNET_PROC_VERSION(the_lnet.ln_routers_version)) { + lnet_net_unlock(0); - here++; - p = lp->lp_hashlist.next; + LIBCFS_FREE(tmpstr, tmpsiz); + return -ESTALE; } - p = NULL; - idx++; - } - - lpsi->lpsi_idx = 0; - lpsi->lpsi_peer = NULL; - rc = -ENOENT; - out: - LNET_UNLOCK(); - return rc; -} - -static void * -lnet_peer_seq_start (struct seq_file *s, loff_t *pos) -{ - lnet_peer_seq_iterator_t *lpsi; - int rc; - - LIBCFS_ALLOC(lpsi, sizeof(*lpsi)); - if (lpsi == NULL) - return NULL; - - lpsi->lpsi_idx = 0; - lpsi->lpsi_peer = NULL; - rc = lnet_peer_seq_seek(lpsi, *pos); - if (rc == 0) - return lpsi; + r = the_lnet.ln_routers.next; - LIBCFS_FREE(lpsi, sizeof(*lpsi)); - return NULL; -} + while (r != &the_lnet.ln_routers) { + lnet_peer_t *lp = list_entry(r, lnet_peer_t, + lp_rtr_list); -static void -lnet_peer_seq_stop (struct seq_file *s, void *iter) -{ - lnet_peer_seq_iterator_t *lpsi = iter; - - if (lpsi != NULL) - LIBCFS_FREE(lpsi, sizeof(*lpsi)); -} + if (skip == 0) { + peer = lp; + break; + } -static void * -lnet_peer_seq_next (struct seq_file *s, void *iter, loff_t *pos) -{ - lnet_peer_seq_iterator_t *lpsi = iter; - int rc; - loff_t next = *pos + 1; - - rc = lnet_peer_seq_seek(lpsi, next); - if (rc != 0) { - LIBCFS_FREE(lpsi, sizeof(*lpsi)); - return NULL; - } + skip--; + r = r->next; + } - *pos = next; - return lpsi; -} + if (peer != NULL) { + lnet_nid_t nid = peer->lp_nid; + cfs_time_t now = cfs_time_current(); + cfs_time_t deadline = peer->lp_ping_deadline; + int nrefs = peer->lp_refcount; + int nrtrrefs = peer->lp_rtr_refcount; + int alive_cnt = peer->lp_alive_count; + int alive = peer->lp_alive; + int pingsent = !peer->lp_ping_notsent; + int last_ping = cfs_duration_sec(cfs_time_sub(now, + peer->lp_ping_timestamp)); + int down_ni = 0; + lnet_route_t *rtr; + + if ((peer->lp_ping_feats & + LNET_PING_FEAT_NI_STATUS) != 0) { + list_for_each_entry(rtr, &peer->lp_routes, + lr_gwlist) { + /* downis on any route should be the + * number of downis on the gateway */ + if (rtr->lr_downis != 0) { + down_ni = rtr->lr_downis; + break; + } + } + } + + if (deadline == 0) + s += snprintf(s, tmpstr + tmpsiz - s, + "%-4d %7d %9d %6s %12d %9d %8s %7d %s\n", + nrefs, nrtrrefs, alive_cnt, + alive ? "up" : "down", last_ping, + pingsent, "NA", down_ni, + libcfs_nid2str(nid)); + else + s += snprintf(s, tmpstr + tmpsiz - s, + "%-4d %7d %9d %6s %12d %9d %8lu %7d %s\n", + nrefs, nrtrrefs, alive_cnt, + alive ? "up" : "down", last_ping, + pingsent, + cfs_duration_sec(cfs_time_sub(deadline, now)), + down_ni, libcfs_nid2str(nid)); + LASSERT (tmpstr + tmpsiz - s > 0); + } -static int -lnet_peer_seq_show (struct seq_file *s, void *iter) -{ - lnet_peer_seq_iterator_t *lpsi = iter; - char *aliveness = "NA"; - lnet_peer_t *lp; - lnet_nid_t nid; - int maxcr; - int mintxcr; - int txcr; - int minrtrcr; - int rtrcr; - int txqnob; - int nrefs; - - if (lpsi->lpsi_off == 0) { - seq_printf(s, "%-24s %4s %5s %5s %5s %5s %5s %5s %s\n", - "nid", "refs", "state", "max", - "rtr", "min", "tx", "min", "queue"); - return 0; + lnet_net_unlock(0); } - LASSERT (lpsi->lpsi_peer != NULL); - - LNET_LOCK(); + len = s - tmpstr; /* how many bytes was written */ - if (lpsi->lpsi_version != the_lnet.ln_peertable_version) { - LNET_UNLOCK(); - return -ESTALE; + if (len > *lenp) { /* linux-supplied buffer is too small */ + rc = -EINVAL; + } else if (len > 0) { /* wrote something */ + if (copy_to_user(buffer, tmpstr, len)) + rc = -EFAULT; + else { + off += 1; + *ppos = LNET_PROC_POS_MAKE(0, ver, 0, off); + } } - lp = lpsi->lpsi_peer; - - nid = lp->lp_nid; - maxcr = lp->lp_ni->ni_peertxcredits; - txcr = lp->lp_txcredits; - mintxcr = lp->lp_mintxcredits; - rtrcr = lp->lp_rtrcredits; - minrtrcr = lp->lp_minrtrcredits; - txqnob = lp->lp_txqnob; - nrefs = lp->lp_refcount; + LIBCFS_FREE(tmpstr, tmpsiz); - if (lnet_isrouter(lp) || lp->lp_ni->ni_peertimeout > 0) - aliveness = lp->lp_alive ? "up" : "down"; - - LNET_UNLOCK(); + if (rc == 0) + *lenp = len; - seq_printf(s, "%-24s %4d %5s %5d %5d %5d %5d %5d %d\n", - libcfs_nid2str(nid), nrefs, aliveness, - maxcr, rtrcr, minrtrcr, txcr, mintxcr, txqnob); - return 0; + return rc; } -static struct seq_operations lnet_peer_sops = { - /* start */ lnet_peer_seq_start, - /* stop */ lnet_peer_seq_stop, - /* next */ lnet_peer_seq_next, - /* show */ lnet_peer_seq_show, -}; - static int -lnet_peer_seq_open(struct inode *inode, struct file *file) -{ - struct proc_dir_entry *dp = PDE(inode); - struct seq_file *sf; - int rc; - - rc = seq_open(file, &lnet_peer_sops); - if (rc == 0) { - sf = file->private_data; - sf->private = dp->data; - } +proc_lnet_peers(struct ctl_table *table, int write, void __user *buffer, + size_t *lenp, loff_t *ppos) +{ + const int tmpsiz = 256; + struct lnet_peer_table *ptable; + char *tmpstr; + char *s; + int cpt = LNET_PROC_CPT_GET(*ppos); + int ver = LNET_PROC_VER_GET(*ppos); + int hash = LNET_PROC_HASH_GET(*ppos); + int hoff = LNET_PROC_HOFF_GET(*ppos); + int rc = 0; + int len; + + CLASSERT(LNET_PROC_HASH_BITS >= LNET_PEER_HASH_BITS); + LASSERT(!write); + + if (*lenp == 0) + return 0; + + if (cpt >= LNET_CPT_NUMBER) { + *lenp = 0; + return 0; + } + + LIBCFS_ALLOC(tmpstr, tmpsiz); + if (tmpstr == NULL) + return -ENOMEM; - return rc; -} + s = tmpstr; /* points to current position in tmpstr[] */ + + if (*ppos == 0) { + s += snprintf(s, tmpstr + tmpsiz - s, + "%-24s %4s %5s %5s %5s %5s %5s %5s %5s %s\n", + "nid", "refs", "state", "last", "max", + "rtr", "min", "tx", "min", "queue"); + LASSERT (tmpstr + tmpsiz - s > 0); + + hoff++; + } else { + struct lnet_peer *peer; + struct list_head *p; + int skip; + again: + p = NULL; + peer = NULL; + skip = hoff - 1; + + lnet_net_lock(cpt); + ptable = the_lnet.ln_peer_tables[cpt]; + if (hoff == 1) + ver = LNET_PROC_VERSION(ptable->pt_version); + + if (ver != LNET_PROC_VERSION(ptable->pt_version)) { + lnet_net_unlock(cpt); + LIBCFS_FREE(tmpstr, tmpsiz); + return -ESTALE; + } + + while (hash < LNET_PEER_HASH_SIZE) { + if (p == NULL) + p = ptable->pt_hash[hash].next; + + while (p != &ptable->pt_hash[hash]) { + lnet_peer_t *lp = list_entry(p, lnet_peer_t, + lp_hashlist); + if (skip == 0) { + peer = lp; + + /* minor optimization: start from idx+1 + * on next iteration if we've just + * drained lp_hashlist */ + if (lp->lp_hashlist.next == + &ptable->pt_hash[hash]) { + hoff = 1; + hash++; + } else { + hoff++; + } + + break; + } + + skip--; + p = lp->lp_hashlist.next; + } -static struct file_operations lnet_peer_fops; + if (peer != NULL) + break; -static void -lnet_init_peer_fops(void) -{ - lnet_peer_fops.owner = THIS_MODULE; - lnet_peer_fops.llseek = seq_lseek; - lnet_peer_fops.read = seq_read; - lnet_peer_fops.open = lnet_peer_seq_open; - lnet_peer_fops.release = seq_release; -} + p = NULL; + hoff = 1; + hash++; + } -typedef struct { - int lbsi_idx; - loff_t lbsi_off; -} lnet_buffer_seq_iterator_t; + if (peer != NULL) { + lnet_nid_t nid = peer->lp_nid; + int nrefs = peer->lp_refcount; + int lastalive = -1; + char *aliveness = "NA"; + int maxcr = peer->lp_ni->ni_peertxcredits; + int txcr = peer->lp_txcredits; + int mintxcr = peer->lp_mintxcredits; + int rtrcr = peer->lp_rtrcredits; + int minrtrcr = peer->lp_minrtrcredits; + int txqnob = peer->lp_txqnob; + + if (lnet_peer_aliveness_enabled(peer)) { + cfs_time_t now = cfs_time_current(); + cfs_duration_t delta; + + aliveness = peer->lp_alive ? "up" : "down"; + delta = cfs_time_sub(now, peer->lp_last_alive); + lastalive = cfs_duration_sec(delta); + + /* No need to mess up peers contents with + * arbitrarily long integers - it suffices to + * know that lastalive is more than 10000s old + */ + if (lastalive >= 10000) + lastalive = 9999; + } -int -lnet_buffer_seq_seek (lnet_buffer_seq_iterator_t *lbsi, loff_t off) -{ - int idx; - loff_t here; - int rc; + lnet_net_unlock(cpt); - if (off == 0) { - lbsi->lbsi_idx = -1; - lbsi->lbsi_off = 0; - return 0; - } + s += snprintf(s, tmpstr + tmpsiz - s, + "%-24s %4d %5s %5d %5d %5d %5d %5d %5d %d\n", + libcfs_nid2str(nid), nrefs, aliveness, + lastalive, maxcr, rtrcr, minrtrcr, txcr, + mintxcr, txqnob); + LASSERT (tmpstr + tmpsiz - s > 0); - LNET_LOCK(); + } else { /* peer is NULL */ + lnet_net_unlock(cpt); + } - if (lbsi->lbsi_idx < 0 || - lbsi->lbsi_off > off) { - /* search from start */ - idx = 0; - here = 1; - } else { - /* continue search */ - idx = lbsi->lbsi_idx; - here = lbsi->lbsi_off; + if (hash == LNET_PEER_HASH_SIZE) { + cpt++; + hash = 0; + hoff = 1; + if (peer == NULL && cpt < LNET_CPT_NUMBER) + goto again; + } } - lbsi->lbsi_off = off; + len = s - tmpstr; /* how many bytes was written */ - while (idx < LNET_NRBPOOLS) { - if (here == off) { - lbsi->lbsi_idx = idx; - rc = 0; - goto out; - } - here++; - idx++; + if (len > *lenp) { /* linux-supplied buffer is too small */ + rc = -EINVAL; + } else if (len > 0) { /* wrote something */ + if (copy_to_user(buffer, tmpstr, len)) + rc = -EFAULT; + else + *ppos = LNET_PROC_POS_MAKE(cpt, ver, hash, hoff); } - lbsi->lbsi_idx = -1; - rc = -ENOENT; - out: - LNET_UNLOCK(); - return rc; -} - -static void * -lnet_buffer_seq_start (struct seq_file *s, loff_t *pos) -{ - lnet_buffer_seq_iterator_t *lbsi; - int rc; - - LIBCFS_ALLOC(lbsi, sizeof(*lbsi)); - if (lbsi == NULL) - return NULL; + LIBCFS_FREE(tmpstr, tmpsiz); - lbsi->lbsi_idx = -1; - rc = lnet_buffer_seq_seek(lbsi, *pos); if (rc == 0) - return lbsi; + *lenp = len; - LIBCFS_FREE(lbsi, sizeof(*lbsi)); - return NULL; + return rc; } -static void -lnet_buffer_seq_stop (struct seq_file *s, void *iter) +static int __proc_lnet_buffers(void *data, int write, + loff_t pos, void __user *buffer, int nob) { - lnet_buffer_seq_iterator_t *lbsi = iter; + char *s; + char *tmpstr; + int tmpsiz; + int idx; + int len; + int rc; + int i; - if (lbsi != NULL) - LIBCFS_FREE(lbsi, sizeof(*lbsi)); -} + LASSERT(!write); -static void * -lnet_buffer_seq_next (struct seq_file *s, void *iter, loff_t *pos) -{ - lnet_buffer_seq_iterator_t *lbsi = iter; - int rc; - loff_t next = *pos + 1; - - rc = lnet_buffer_seq_seek(lbsi, next); - if (rc != 0) { - LIBCFS_FREE(lbsi, sizeof(*lbsi)); - return NULL; - } + /* (4 %d) * 4 * LNET_CPT_NUMBER */ + tmpsiz = 64 * (LNET_NRBPOOLS + 1) * LNET_CPT_NUMBER; + LIBCFS_ALLOC(tmpstr, tmpsiz); + if (tmpstr == NULL) + return -ENOMEM; - *pos = next; - return lbsi; -} + s = tmpstr; /* points to current position in tmpstr[] */ -static int -lnet_buffer_seq_show (struct seq_file *s, void *iter) -{ - lnet_buffer_seq_iterator_t *lbsi = iter; - lnet_rtrbufpool_t *rbp; - int npages; - int nbuf; - int cr; - int mincr; - - if (lbsi->lbsi_off == 0) { - seq_printf(s, "%5s %5s %7s %7s\n", - "pages", "count", "credits", "min"); - return 0; - } + s += snprintf(s, tmpstr + tmpsiz - s, + "%5s %5s %7s %7s\n", + "pages", "count", "credits", "min"); + LASSERT (tmpstr + tmpsiz - s > 0); - LASSERT (lbsi->lbsi_idx >= 0 && lbsi->lbsi_idx < LNET_NRBPOOLS); + if (the_lnet.ln_rtrpools == NULL) + goto out; /* I'm not a router */ - LNET_LOCK(); + for (idx = 0; idx < LNET_NRBPOOLS; idx++) { + lnet_rtrbufpool_t *rbp; - rbp = &the_lnet.ln_rtrpools[lbsi->lbsi_idx]; + lnet_net_lock(LNET_LOCK_EX); + cfs_percpt_for_each(rbp, i, the_lnet.ln_rtrpools) { + s += snprintf(s, tmpstr + tmpsiz - s, + "%5d %5d %7d %7d\n", + rbp[idx].rbp_npages, + rbp[idx].rbp_nbuffers, + rbp[idx].rbp_credits, + rbp[idx].rbp_mincredits); + LASSERT(tmpstr + tmpsiz - s > 0); + } + lnet_net_unlock(LNET_LOCK_EX); + } - npages = rbp->rbp_npages; - nbuf = rbp->rbp_nbuffers; - cr = rbp->rbp_credits; - mincr = rbp->rbp_mincredits; + out: + len = s - tmpstr; - LNET_UNLOCK(); + if (pos >= min_t(int, len, strlen(tmpstr))) + rc = 0; + else + rc = cfs_trace_copyout_string(buffer, nob, + tmpstr + pos, NULL); - seq_printf(s, "%5d %5d %7d %7d\n", - npages, nbuf, cr, mincr); - return 0; + LIBCFS_FREE(tmpstr, tmpsiz); + return rc; } -static struct seq_operations lnet_buffer_sops = { - /* start */ lnet_buffer_seq_start, - /* stop */ lnet_buffer_seq_stop, - /* next */ lnet_buffer_seq_next, - /* show */ lnet_buffer_seq_show, -}; - static int -lnet_buffer_seq_open(struct inode *inode, struct file *file) +proc_lnet_buffers(struct ctl_table *table, int write, void __user *buffer, + size_t *lenp, loff_t *ppos) { - struct proc_dir_entry *dp = PDE(inode); - struct seq_file *sf; - int rc; - - rc = seq_open(file, &lnet_buffer_sops); - if (rc == 0) { - sf = file->private_data; - sf->private = dp->data; - } - - return rc; + return lprocfs_call_handler(table->data, write, ppos, buffer, lenp, + __proc_lnet_buffers); } -static struct file_operations lnet_buffers_fops; - -static void -lnet_init_buffers_fops(void) +static int +proc_lnet_nis(struct ctl_table *table, int write, void __user *buffer, + size_t *lenp, loff_t *ppos) { - lnet_buffers_fops.owner = THIS_MODULE; - lnet_buffers_fops.llseek = seq_lseek; - lnet_buffers_fops.read = seq_read; - lnet_buffers_fops.open = lnet_buffer_seq_open; - lnet_buffers_fops.release = seq_release; -} + int tmpsiz = 128 * LNET_CPT_NUMBER; + int rc = 0; + char *tmpstr; + char *s; + int len; -typedef struct { - lnet_ni_t *lnsi_ni; - loff_t lnsi_off; -} lnet_ni_seq_iterator_t; - -int -lnet_ni_seq_seek (lnet_ni_seq_iterator_t *lnsi, loff_t off) -{ - struct list_head *n; - loff_t here; - int rc; + LASSERT (!write); - if (off == 0) { - lnsi->lnsi_ni = NULL; - lnsi->lnsi_off = 0; + if (*lenp == 0) return 0; - } - LNET_LOCK(); + LIBCFS_ALLOC(tmpstr, tmpsiz); + if (tmpstr == NULL) + return -ENOMEM; + + s = tmpstr; /* points to current position in tmpstr[] */ - if (lnsi->lnsi_ni == NULL || - lnsi->lnsi_off > off) { - /* search from start */ - n = NULL; - here = 1; + if (*ppos == 0) { + s += snprintf(s, tmpstr + tmpsiz - s, + "%-24s %6s %5s %4s %4s %4s %5s %5s %5s\n", + "nid", "status", "alive", "refs", "peer", + "rtr", "max", "tx", "min"); + LASSERT (tmpstr + tmpsiz - s > 0); } else { - /* continue search */ - n = &lnsi->lnsi_ni->ni_list; - here = lnsi->lnsi_off; - } + struct list_head *n; + lnet_ni_t *ni = NULL; + int skip = *ppos - 1; - lnsi->lnsi_off = off; + lnet_net_lock(0); - if (n == NULL) n = the_lnet.ln_nis.next; - while (n != &the_lnet.ln_nis) { - if (here == off) { - lnsi->lnsi_ni = list_entry(n, lnet_ni_t, ni_list); - rc = 0; - goto out; - } - here++; - n = n->next; - } + while (n != &the_lnet.ln_nis) { + lnet_ni_t *a_ni = list_entry(n, lnet_ni_t, ni_list); - lnsi->lnsi_ni = NULL; - rc = -ENOENT; - out: - LNET_UNLOCK(); - return rc; -} + if (skip == 0) { + ni = a_ni; + break; + } -static void * -lnet_ni_seq_start (struct seq_file *s, loff_t *pos) -{ - lnet_ni_seq_iterator_t *lnsi; - int rc; + skip--; + n = n->next; + } - LIBCFS_ALLOC(lnsi, sizeof(*lnsi)); - if (lnsi == NULL) - return NULL; + if (ni != NULL) { + struct lnet_tx_queue *tq; + char *stat; + long now = cfs_time_current_sec(); + int last_alive = -1; + int i; + int j; + + if (the_lnet.ln_routing) + last_alive = now - ni->ni_last_alive; + + /* @lo forever alive */ + if (ni->ni_lnd->lnd_type == LOLND) + last_alive = 0; + + lnet_ni_lock(ni); + LASSERT(ni->ni_status != NULL); + stat = (ni->ni_status->ns_status == + LNET_NI_STATUS_UP) ? "up" : "down"; + lnet_ni_unlock(ni); + + /* we actually output credits information for + * TX queue of each partition */ + cfs_percpt_for_each(tq, i, ni->ni_tx_queues) { + for (j = 0; ni->ni_cpts != NULL && + j < ni->ni_ncpts; j++) { + if (i == ni->ni_cpts[j]) + break; + } + + if (j == ni->ni_ncpts) + continue; + + if (i != 0) + lnet_net_lock(i); + + s += snprintf(s, tmpstr + tmpsiz - s, + "%-24s %6s %5d %4d %4d %4d %5d %5d %5d\n", + libcfs_nid2str(ni->ni_nid), stat, + last_alive, *ni->ni_refs[i], + ni->ni_peertxcredits, + ni->ni_peerrtrcredits, + tq->tq_credits_max, + tq->tq_credits, tq->tq_credits_min); + if (i != 0) + lnet_net_unlock(i); + } + LASSERT(tmpstr + tmpsiz - s > 0); + } + + lnet_net_unlock(0); + } + + len = s - tmpstr; /* how many bytes was written */ + + if (len > *lenp) { /* linux-supplied buffer is too small */ + rc = -EINVAL; + } else if (len > 0) { /* wrote something */ + if (copy_to_user(buffer, tmpstr, len)) + rc = -EFAULT; + else + *ppos += 1; + } + + LIBCFS_FREE(tmpstr, tmpsiz); - lnsi->lnsi_ni = NULL; - rc = lnet_ni_seq_seek(lnsi, *pos); if (rc == 0) - return lnsi; + *lenp = len; - LIBCFS_FREE(lnsi, sizeof(*lnsi)); - return NULL; + return rc; } -static void -lnet_ni_seq_stop (struct seq_file *s, void *iter) -{ - lnet_ni_seq_iterator_t *lnsi = iter; - - if (lnsi != NULL) - LIBCFS_FREE(lnsi, sizeof(*lnsi)); -} +struct lnet_portal_rotors { + int pr_value; + const char *pr_name; + const char *pr_desc; +}; -static void * -lnet_ni_seq_next (struct seq_file *s, void *iter, loff_t *pos) -{ - lnet_ni_seq_iterator_t *lnsi = iter; - int rc; - loff_t next = *pos + 1; - - rc = lnet_ni_seq_seek(lnsi, next); - if (rc != 0) { - LIBCFS_FREE(lnsi, sizeof(*lnsi)); - return NULL; - } +static struct lnet_portal_rotors portal_rotors[] = { + { + .pr_value = LNET_PTL_ROTOR_OFF, + .pr_name = "OFF", + .pr_desc = "Turn off message rotor for wildcard portals" + }, + { + .pr_value = LNET_PTL_ROTOR_ON, + .pr_name = "ON", + .pr_desc = "round-robin dispatch all PUT messages for " + "wildcard portals" + }, + { + .pr_value = LNET_PTL_ROTOR_RR_RT, + .pr_name = "RR_RT", + .pr_desc = "round-robin dispatch routed PUT message for " + "wildcard portals" + }, + { + .pr_value = LNET_PTL_ROTOR_HASH_RT, + .pr_name = "HASH_RT", + .pr_desc = "dispatch routed PUT message by hashing source " + "NID for wildcard portals" + }, + { + .pr_value = -1, + .pr_name = NULL, + .pr_desc = NULL + }, +}; - *pos = next; - return lnsi; +extern int portal_rotor; + +static int __proc_lnet_portal_rotor(void *data, int write, + loff_t pos, void __user *buffer, int nob) +{ + const int buf_len = 128; + char *buf; + char *tmp; + int rc; + int i; + + LIBCFS_ALLOC(buf, buf_len); + if (buf == NULL) + return -ENOMEM; + + if (!write) { + lnet_res_lock(0); + + for (i = 0; portal_rotors[i].pr_value >= 0; i++) { + if (portal_rotors[i].pr_value == portal_rotor) + break; + } + + LASSERT(portal_rotors[i].pr_value == portal_rotor); + lnet_res_unlock(0); + + rc = snprintf(buf, buf_len, + "{\n\tportals: all\n" + "\trotor: %s\n\tdescription: %s\n}", + portal_rotors[i].pr_name, + portal_rotors[i].pr_desc); + + if (pos >= min_t(int, rc, buf_len)) { + rc = 0; + } else { + rc = cfs_trace_copyout_string(buffer, nob, + buf + pos, "\n"); + } + goto out; + } + + rc = cfs_trace_copyin_string(buf, buf_len, buffer, nob); + if (rc < 0) + goto out; + + tmp = cfs_trimwhite(buf); + + rc = -EINVAL; + lnet_res_lock(0); + for (i = 0; portal_rotors[i].pr_name != NULL; i++) { + if (strncasecmp(portal_rotors[i].pr_name, tmp, + strlen(portal_rotors[i].pr_name)) == 0) { + portal_rotor = portal_rotors[i].pr_value; + rc = 0; + break; + } + } + lnet_res_unlock(0); +out: + LIBCFS_FREE(buf, buf_len); + return rc; } static int -lnet_ni_seq_show (struct seq_file *s, void *iter) -{ - lnet_ni_seq_iterator_t *lnsi = iter; - lnet_ni_t *ni; - int maxtxcr; - int txcr; - int mintxcr; - int npeertxcr; - lnet_nid_t nid; - int nref; - - if (lnsi->lnsi_off == 0) { - seq_printf(s, "%-24s %4s %4s %5s %5s %5s\n", - "nid", "refs", "peer", "max", "tx", "min"); - return 0; - } - - LASSERT (lnsi->lnsi_ni != NULL); - - LNET_LOCK(); - - ni = lnsi->lnsi_ni; - - maxtxcr = ni->ni_maxtxcredits; - txcr = ni->ni_txcredits; - mintxcr = ni->ni_mintxcredits; - npeertxcr = ni->ni_peertxcredits; - nid = ni->ni_nid; - nref = ni->ni_refcount; - - LNET_UNLOCK(); - - seq_printf(s, "%-24s %4d %4d %5d %5d %5d\n", - libcfs_nid2str(nid), nref, - npeertxcr, maxtxcr, txcr, mintxcr); - return 0; -} - -static struct seq_operations lnet_ni_sops = { - /* start */ lnet_ni_seq_start, - /* stop */ lnet_ni_seq_stop, - /* next */ lnet_ni_seq_next, - /* show */ lnet_ni_seq_show, +proc_lnet_portal_rotor(struct ctl_table *table, int write, void __user *buffer, + size_t *lenp, loff_t *ppos) +{ + return lprocfs_call_handler(table->data, write, ppos, buffer, lenp, + __proc_lnet_portal_rotor); +} + + +static struct ctl_table lnet_table[] = { + /* + * NB No .strategy entries have been provided since sysctl(8) prefers + * to go via /proc for portability. + */ + { + INIT_CTL_NAME + .procname = "stats", + .mode = 0644, + .proc_handler = &proc_lnet_stats, + }, + { + INIT_CTL_NAME + .procname = "routes", + .mode = 0444, + .proc_handler = &proc_lnet_routes, + }, + { + INIT_CTL_NAME + .procname = "routers", + .mode = 0444, + .proc_handler = &proc_lnet_routers, + }, + { + INIT_CTL_NAME + .procname = "peers", + .mode = 0444, + .proc_handler = &proc_lnet_peers, + }, + { + INIT_CTL_NAME + .procname = "buffers", + .mode = 0444, + .proc_handler = &proc_lnet_buffers, + }, + { + INIT_CTL_NAME + .procname = "nis", + .mode = 0444, + .proc_handler = &proc_lnet_nis, + }, + { + INIT_CTL_NAME + .procname = "portal_rotor", + .mode = 0644, + .proc_handler = &proc_lnet_portal_rotor, + }, + { 0 } }; -static int -lnet_ni_seq_open(struct inode *inode, struct file *file) -{ - struct proc_dir_entry *dp = PDE(inode); - struct seq_file *sf; - int rc; - - rc = seq_open(file, &lnet_ni_sops); - if (rc == 0) { - sf = file->private_data; - sf->private = dp->data; - } - - return rc; -} - -static struct file_operations lnet_ni_fops; - -static void -lnet_init_ni_fops(void) -{ - lnet_ni_fops.owner = THIS_MODULE; - lnet_ni_fops.llseek = seq_lseek; - lnet_ni_fops.read = seq_read; - lnet_ni_fops.open = lnet_ni_seq_open; - lnet_ni_fops.release = seq_release; -} +static struct ctl_table top_table[] = { + { + INIT_CTL_NAME + .procname = "lnet", + .mode = 0555, + .data = NULL, + .maxlen = 0, + .child = lnet_table, + }, + { 0 } +}; void lnet_proc_init(void) { - struct proc_dir_entry *pde; - -#if 0 - pde = proc_mkdir(LNET_PROC_ROOT, NULL); - if (pde == NULL) { - CERROR("couldn't create "LNET_PROC_ROOT"\n"); - return; - } +#ifdef CONFIG_SYSCTL + if (lnet_table_header == NULL) + lnet_table_header = register_sysctl_table(top_table); #endif - /* Initialize LNET_PROC_STATS */ - pde = create_proc_entry (LNET_PROC_STATS, 0644, NULL); - if (pde == NULL) { - CERROR("couldn't create proc entry %s\n", LNET_PROC_STATS); - return; - } - - pde->data = NULL; - pde->read_proc = lnet_router_proc_stats_read; - pde->write_proc = lnet_router_proc_stats_write; - - /* Initialize LNET_PROC_ROUTES */ - pde = create_proc_entry (LNET_PROC_ROUTES, 0444, NULL); - if (pde == NULL) { - CERROR("couldn't create proc entry %s\n", LNET_PROC_ROUTES); - return; - } - - lnet_init_routes_fops(); - pde->proc_fops = &lnet_routes_fops; - pde->data = NULL; - - /* Initialize LNET_PROC_ROUTERS */ - pde = create_proc_entry (LNET_PROC_ROUTERS, 0444, NULL); - if (pde == NULL) { - CERROR("couldn't create proc entry %s\n", LNET_PROC_ROUTERS); - return; - } - - lnet_init_routers_fops(); - pde->proc_fops = &lnet_routers_fops; - pde->data = NULL; - - /* Initialize LNET_PROC_PEERS */ - pde = create_proc_entry (LNET_PROC_PEERS, 0444, NULL); - if (pde == NULL) { - CERROR("couldn't create proc entry %s\n", LNET_PROC_PEERS); - return; - } - - lnet_init_peer_fops(); - pde->proc_fops = &lnet_peer_fops; - pde->data = NULL; - - /* Initialize LNET_PROC_BUFFERS */ - pde = create_proc_entry (LNET_PROC_BUFFERS, 0444, NULL); - if (pde == NULL) { - CERROR("couldn't create proc entry %s\n", LNET_PROC_BUFFERS); - return; - } - - lnet_init_buffers_fops(); - pde->proc_fops = &lnet_buffers_fops; - pde->data = NULL; - - /* Initialize LNET_PROC_NIS */ - pde = create_proc_entry (LNET_PROC_NIS, 0444, NULL); - if (pde == NULL) { - CERROR("couldn't create proc entry %s\n", LNET_PROC_NIS); - return; - } - - lnet_init_ni_fops(); - pde->proc_fops = &lnet_ni_fops; - pde->data = NULL; } void lnet_proc_fini(void) { - remove_proc_entry(LNET_PROC_STATS, 0); - remove_proc_entry(LNET_PROC_ROUTES, 0); - remove_proc_entry(LNET_PROC_ROUTERS, 0); - remove_proc_entry(LNET_PROC_PEERS, 0); - remove_proc_entry(LNET_PROC_BUFFERS, 0); - remove_proc_entry(LNET_PROC_NIS, 0); -#if 0 - remove_proc_entry(LNET_PROC_ROOT, 0); +#ifdef CONFIG_SYSCTL + if (lnet_table_header != NULL) + unregister_sysctl_table(lnet_table_header); + + lnet_table_header = NULL; #endif }