-/* -*- 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, 2015, Intel Corporation.
*
- * This file is part of Portals
- * http://sourceforge.net/projects/sandiaportals/
+ * This file is part of Lustre, https://wiki.hpdd.intel.com/
*
* Portals is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
#include <libcfs/libcfs.h>
#include <lnet/lib-lnet.h>
-#if defined(__KERNEL__) && defined(LNET_ROUTER)
+/* This is really lnet_proc.c. You might need to update sanity test 215
+ * if any file format is changed. */
-#if defined(__linux__)
-#include <linux/seq_file.h>
-#endif
-
-/* this is really lnet_proc.c */
-
-#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 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;
-
- LIBCFS_ALLOC(ctrs, sizeof(*ctrs));
- if (ctrs == NULL)
- return -ENOMEM;
-
- LNET_LOCK();
- *ctrs = the_lnet.ln_counters;
- LNET_UNLOCK();
-
- 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);
-
- LIBCFS_FREE(ctrs, sizeof(*ctrs));
- return rc;
-}
-
-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();
-
- return (count);
-}
-
-typedef struct {
- __u64 lrsi_version;
- lnet_remotenet_t *lrsi_net;
- lnet_route_t *lrsi_route;
- loff_t lrsi_off;
-} lnet_route_seq_iterator_t;
-
-int
-lnet_route_seq_seek (lnet_route_seq_iterator_t *lrsi, loff_t off)
-{
- 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();
-
- if (lrsi->lrsi_net != NULL &&
- lrsi->lrsi_version != the_lnet.ln_remote_nets_version) {
- /* tables have changed */
- rc = -ESTALE;
- goto out;
- }
-
- 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;
- }
-
- 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++;
- }
-
- r = NULL;
- n = n->next;
- }
-
- 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;
-
- 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;
+static struct ctl_table_header *lnet_table_header = NULL;
- 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));
-}
-
-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;
- }
-
- *pos = next;
- return lrsi;
+#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)
+
+#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)
+
+#define LNET_PROC_CPT_GET(pos) \
+ (int)(((pos) >> LNET_PROC_VPOS_BITS) & LNET_PROC_CPT_MASK)
+
+#define LNET_PROC_VER_GET(pos) \
+ (int)(((pos) >> LNET_PROC_HPOS_BITS) & LNET_PROC_VER_MASK)
+
+#define LNET_PROC_HASH_GET(pos) \
+ (int)(((pos) >> LNET_PROC_HOFF_BITS) & LNET_PROC_HASH_MASK)
+
+#define LNET_PROC_HOFF_GET(pos) \
+ (int)((pos) & LNET_PROC_HOFF_MASK)
+
+#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))
+
+#define LNET_PROC_VERSION(v) ((unsigned int)((v) & LNET_PROC_VER_MASK))
+
+static int __proc_lnet_stats(void *data, int write,
+ loff_t pos, void __user *buffer, int nob)
+{
+ int rc;
+ lnet_counters_t *ctrs;
+ int len;
+ char *tmpstr;
+ const int tmpsiz = 256; /* 7 %u and 4 __u64 */
+
+ if (write) {
+ lnet_counters_reset();
+ return 0;
+ }
+
+ /* read */
+
+ LIBCFS_ALLOC(ctrs, sizeof(*ctrs));
+ if (ctrs == NULL)
+ return -ENOMEM;
+
+ LIBCFS_ALLOC(tmpstr, tmpsiz);
+ if (tmpstr == NULL) {
+ LIBCFS_FREE(ctrs, sizeof(*ctrs));
+ return -ENOMEM;
+ }
+
+ lnet_counters_get(ctrs);
+
+ len = snprintf(tmpstr, tmpsiz,
+ "%u %u %u %u %u %u %u %llu %llu "
+ "%llu %llu",
+ 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);
+
+ if (pos >= min_t(int, len, strlen(tmpstr)))
+ rc = 0;
+ else
+ rc = cfs_trace_copyout_string(buffer, nob,
+ tmpstr + pos, "\n");
+
+ 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)
-{
- 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;
- }
-
- return rc;
-}
-
-static struct file_operations lnet_routes_fops;
-
-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;
-}
-
-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;
- 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);
-
- if (here == off) {
- lrtrsi->lrtrsi_router = rtr;
- rc = 0;
- goto out;
- }
-
- 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_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;
+proc_lnet_routes(struct ctl_table *table, int write, void __user *buffer,
+ size_t *lenp, loff_t *ppos)
+{
+ const int tmpsiz = 256;
+ char *tmpstr;
+ char *s;
+ int rc = 0;
+ int len;
+ int ver;
+ int off;
+
+ CLASSERT(sizeof(loff_t) >= 4);
+
+ off = LNET_PROC_HOFF_GET(*ppos);
+ ver = LNET_PROC_VER_GET(*ppos);
+
+ LASSERT(!write);
+
+ if (*lenp == 0)
+ return 0;
+
+ LIBCFS_ALLOC(tmpstr, tmpsiz);
+ if (tmpstr == NULL)
+ return -ENOMEM;
+
+ 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;
+ __u32 hops = route->lr_hops;
+ unsigned int priority = route->lr_priority;
+ lnet_nid_t nid = route->lr_gateway->lpni_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);
+ }
+ }
+
+ LIBCFS_FREE(tmpstr, tmpsiz);
+
+ if (rc == 0)
+ *lenp = len;
+
+ return rc;
}
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;
-}
-
-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,
-};
-
+proc_lnet_routers(struct ctl_table *table, int write, void __user *buffer,
+ size_t *lenp, loff_t *ppos)
+{
+ int rc = 0;
+ char *tmpstr;
+ char *s;
+ const int tmpsiz = 256;
+ int len;
+ int ver;
+ int off;
+
+ off = LNET_PROC_HOFF_GET(*ppos);
+ ver = LNET_PROC_VER_GET(*ppos);
+
+ LASSERT(!write);
+
+ if (*lenp == 0)
+ return 0;
+
+ LIBCFS_ALLOC(tmpstr, tmpsiz);
+ if (tmpstr == NULL)
+ return -ENOMEM;
+
+ s = tmpstr; /* points to current position in tmpstr[] */
+
+ 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);
+
+ 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_ni *peer = NULL;
+ int skip = off - 1;
+
+ lnet_net_lock(0);
+
+ if (ver != LNET_PROC_VERSION(the_lnet.ln_routers_version)) {
+ lnet_net_unlock(0);
+
+ LIBCFS_FREE(tmpstr, tmpsiz);
+ return -ESTALE;
+ }
+
+ r = the_lnet.ln_routers.next;
+
+ while (r != &the_lnet.ln_routers) {
+ struct lnet_peer_ni *lp =
+ list_entry(r, struct lnet_peer_ni,
+ lpni_rtr_list);
+
+ if (skip == 0) {
+ peer = lp;
+ break;
+ }
+
+ skip--;
+ r = r->next;
+ }
+
+ if (peer != NULL) {
+ lnet_nid_t nid = peer->lpni_nid;
+ cfs_time_t now = cfs_time_current();
+ cfs_time_t deadline = peer->lpni_ping_deadline;
+ int nrefs = atomic_read(&peer->lpni_refcount);
+ int nrtrrefs = peer->lpni_rtr_refcount;
+ int alive_cnt = peer->lpni_alive_count;
+ int alive = peer->lpni_alive;
+ int pingsent = !peer->lpni_ping_notsent;
+ int last_ping = cfs_duration_sec(cfs_time_sub(now,
+ peer->lpni_ping_timestamp));
+ int down_ni = 0;
+ lnet_route_t *rtr;
+
+ if ((peer->lpni_ping_feats &
+ LNET_PING_FEAT_NI_STATUS) != 0) {
+ list_for_each_entry(rtr, &peer->lpni_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);
+ }
+
+ 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);
+ }
+ }
+
+ LIBCFS_FREE(tmpstr, tmpsiz);
+
+ if (rc == 0)
+ *lenp = len;
+
+ return rc;
+}
+
+/* TODO: there should be no direct access to ptable. We should add a set
+ * of APIs that give access to the ptable and its members */
static int
-lnet_router_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_routers_sops);
- if (rc == 0) {
- sf = file->private_data;
- sf->private = dp->data;
- }
-
- return rc;
-}
-
-static struct file_operations lnet_routers_fops;
-
-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;
- return 0;
- }
-
- LNET_LOCK();
-
- if (lpsi->lpsi_peer != NULL &&
- lpsi->lpsi_version != the_lnet.ln_peertable_version) {
- /* tables have changed */
- rc = -ESTALE;
- goto out;
- }
-
- 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;
- }
-
- lpsi->lpsi_version = the_lnet.ln_peertable_version;
- lpsi->lpsi_off = off;
-
- while (idx < LNET_PEER_HASHSIZE) {
- if (p == NULL)
- p = the_lnet.ln_peer_hash[idx].next;
-
- while (p != &the_lnet.ln_peer_hash[idx]) {
- lnet_peer_t *lp = list_entry(p, lnet_peer_t,
- lp_hashlist);
-
- if (here == off) {
- lpsi->lpsi_idx = idx;
- lpsi->lpsi_peer = lp;
- rc = 0;
- goto out;
- }
-
- here++;
- p = lp->lp_hashlist.next;
+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;
+
+ 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_ni *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]) {
+ struct lnet_peer_ni *lp =
+ list_entry(p, struct lnet_peer_ni,
+ lpni_hashlist);
+ if (skip == 0) {
+ peer = lp;
+
+ /* minor optimization: start from idx+1
+ * on next iteration if we've just
+ * drained lpni_hashlist */
+ if (lp->lpni_hashlist.next ==
+ &ptable->pt_hash[hash]) {
+ hoff = 1;
+ hash++;
+ } else {
+ hoff++;
+ }
+
+ break;
+ }
+
+ skip--;
+ p = lp->lpni_hashlist.next;
+ }
+
+ if (peer != NULL)
+ break;
+
+ p = NULL;
+ hoff = 1;
+ hash++;
}
- p = NULL;
- idx++;
- }
+ if (peer != NULL) {
+ lnet_nid_t nid = peer->lpni_nid;
+ int nrefs = atomic_read(&peer->lpni_refcount);
+ int lastalive = -1;
+ char *aliveness = "NA";
+ int maxcr = peer->lpni_net->net_tunables.lct_peer_tx_credits;
+ int txcr = peer->lpni_txcredits;
+ int mintxcr = peer->lpni_mintxcredits;
+ int rtrcr = peer->lpni_rtrcredits;
+ int minrtrcr = peer->lpni_minrtrcredits;
+ int txqnob = peer->lpni_txqnob;
+
+ if (lnet_isrouter(peer) ||
+ lnet_peer_aliveness_enabled(peer))
+ aliveness = peer->lpni_alive ? "up" : "down";
+
+ if (lnet_peer_aliveness_enabled(peer)) {
+ cfs_time_t now = cfs_time_current();
+ cfs_duration_t delta;
+
+ delta = cfs_time_sub(now, peer->lpni_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;
+ }
+
+ lnet_net_unlock(cpt);
+
+ 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);
+
+ } else { /* peer is NULL */
+ lnet_net_unlock(cpt);
+ }
+
+ if (hash == LNET_PEER_HASH_SIZE) {
+ cpt++;
+ hash = 0;
+ hoff = 1;
+ if (peer == NULL && cpt < LNET_CPT_NUMBER)
+ goto again;
+ }
+ }
+
+ 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 = LNET_PROC_POS_MAKE(cpt, ver, hash, hoff);
+ }
+
+ LIBCFS_FREE(tmpstr, tmpsiz);
+
+ if (rc == 0)
+ *lenp = len;
+
+ return rc;
+}
+
+static int __proc_lnet_buffers(void *data, int write,
+ loff_t pos, void __user *buffer, int nob)
+{
+ char *s;
+ char *tmpstr;
+ int tmpsiz;
+ int idx;
+ int len;
+ int rc;
+ int i;
+
+ LASSERT(!write);
+
+ /* (4 %d) * 4 * LNET_CPT_NUMBER */
+ tmpsiz = 64 * (LNET_NRBPOOLS + 1) * LNET_CPT_NUMBER;
+ LIBCFS_ALLOC(tmpstr, tmpsiz);
+ if (tmpstr == NULL)
+ return -ENOMEM;
+
+ s = tmpstr; /* points to current position in tmpstr[] */
+
+ s += snprintf(s, tmpstr + tmpsiz - s,
+ "%5s %5s %7s %7s\n",
+ "pages", "count", "credits", "min");
+ LASSERT(tmpstr + tmpsiz - s > 0);
+
+ if (the_lnet.ln_rtrpools == NULL)
+ goto out; /* I'm not a router */
+
+ for (idx = 0; idx < LNET_NRBPOOLS; idx++) {
+ lnet_rtrbufpool_t *rbp;
+
+ 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);
+ }
- 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;
+ len = s - tmpstr;
- lpsi->lpsi_idx = 0;
- lpsi->lpsi_peer = NULL;
- rc = lnet_peer_seq_seek(lpsi, *pos);
- if (rc == 0)
- return lpsi;
+ if (pos >= min_t(int, len, strlen(tmpstr)))
+ rc = 0;
+ else
+ rc = cfs_trace_copyout_string(buffer, nob,
+ tmpstr + pos, NULL);
- LIBCFS_FREE(lpsi, sizeof(*lpsi));
- return NULL;
-}
-
-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));
-}
-
-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;
- }
-
- *pos = next;
- return lpsi;
+ LIBCFS_FREE(tmpstr, tmpsiz);
+ return rc;
}
static int
-lnet_peer_seq_show (struct seq_file *s, void *iter)
+proc_lnet_buffers(struct ctl_table *table, int write, void __user *buffer,
+ size_t *lenp, loff_t *ppos)
{
- 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;
- }
-
- LASSERT (lpsi->lpsi_peer != NULL);
-
- LNET_LOCK();
-
- if (lpsi->lpsi_version != the_lnet.ln_peertable_version) {
- LNET_UNLOCK();
- return -ESTALE;
- }
-
- 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;
-
- if (lnet_isrouter(lp) || lp->lp_ni->ni_peertimeout > 0)
- aliveness = lp->lp_alive ? "up" : "down";
-
- LNET_UNLOCK();
-
- 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 lprocfs_call_handler(table->data, write, ppos, buffer, lenp,
+ __proc_lnet_buffers);
}
-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;
- }
-
- return rc;
-}
-
-static struct file_operations lnet_peer_fops;
-
-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;
-}
-
-typedef struct {
- int lbsi_idx;
- loff_t lbsi_off;
-} lnet_buffer_seq_iterator_t;
-
-int
-lnet_buffer_seq_seek (lnet_buffer_seq_iterator_t *lbsi, loff_t off)
-{
- int idx;
- loff_t here;
- int rc;
-
- if (off == 0) {
- lbsi->lbsi_idx = -1;
- lbsi->lbsi_off = 0;
- return 0;
- }
-
- LNET_LOCK();
-
- 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;
- }
-
- lbsi->lbsi_off = off;
-
- while (idx < LNET_NRBPOOLS) {
- if (here == off) {
- lbsi->lbsi_idx = idx;
- rc = 0;
- goto out;
- }
- here++;
- idx++;
- }
-
- 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;
-
- lbsi->lbsi_idx = -1;
- rc = lnet_buffer_seq_seek(lbsi, *pos);
- if (rc == 0)
- return lbsi;
-
- LIBCFS_FREE(lbsi, sizeof(*lbsi));
- return NULL;
-}
-
-static void
-lnet_buffer_seq_stop (struct seq_file *s, void *iter)
-{
- lnet_buffer_seq_iterator_t *lbsi = iter;
-
- if (lbsi != NULL)
- LIBCFS_FREE(lbsi, sizeof(*lbsi));
-}
-
-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;
- }
-
- *pos = next;
- return lbsi;
-}
-
-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;
- }
-
- LASSERT (lbsi->lbsi_idx >= 0 && lbsi->lbsi_idx < LNET_NRBPOOLS);
-
- LNET_LOCK();
-
- rbp = &the_lnet.ln_rtrpools[lbsi->lbsi_idx];
-
- npages = rbp->rbp_npages;
- nbuf = rbp->rbp_nbuffers;
- cr = rbp->rbp_credits;
- mincr = rbp->rbp_mincredits;
-
- LNET_UNLOCK();
-
- seq_printf(s, "%5d %5d %7d %7d\n",
- npages, nbuf, cr, mincr);
- return 0;
-}
-
-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,
+proc_lnet_nis(struct ctl_table *table, int write, void __user *buffer,
+ size_t *lenp, loff_t *ppos)
+{
+ int tmpsiz = 128 * LNET_CPT_NUMBER;
+ int rc = 0;
+ char *tmpstr;
+ char *s;
+ int len;
+
+ LASSERT(!write);
+
+ if (*lenp == 0)
+ return 0;
+
+ LIBCFS_ALLOC(tmpstr, tmpsiz);
+ if (tmpstr == NULL)
+ return -ENOMEM;
+
+ s = tmpstr; /* points to current position in tmpstr[] */
+
+ 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 {
+ lnet_ni_t *ni = NULL;
+ int skip = *ppos - 1;
+
+ lnet_net_lock(0);
+
+ ni = lnet_get_ni_idx_locked(skip);
+
+ if (ni != NULL) {
+ struct lnet_tx_queue *tq;
+ char *stat;
+ time64_t now = ktime_get_real_seconds();
+ 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_net->net_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_net->net_tunables.lct_peer_tx_credits,
+ ni->ni_net->net_tunables.lct_peer_rtr_credits,
+ 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);
+
+ if (rc == 0)
+ *lenp = len;
+
+ return rc;
+}
+
+struct lnet_portal_rotors {
+ int pr_value;
+ const char *pr_name;
+ const char *pr_desc;
};
-static int
-lnet_buffer_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_buffer_sops);
- if (rc == 0) {
- sf = file->private_data;
- sf->private = dp->data;
- }
-
- return rc;
-}
-
-static struct file_operations lnet_buffers_fops;
-
-static void
-lnet_init_buffers_fops(void)
-{
- 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;
-}
-
-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;
-
- if (off == 0) {
- lnsi->lnsi_ni = NULL;
- lnsi->lnsi_off = 0;
- return 0;
- }
-
- LNET_LOCK();
-
- if (lnsi->lnsi_ni == NULL ||
- lnsi->lnsi_off > off) {
- /* search from start */
- n = NULL;
- here = 1;
- } else {
- /* continue search */
- n = &lnsi->lnsi_ni->ni_list;
- here = lnsi->lnsi_off;
- }
-
- lnsi->lnsi_off = off;
-
- 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;
- }
-
- lnsi->lnsi_ni = NULL;
- rc = -ENOENT;
- out:
- LNET_UNLOCK();
- return rc;
-}
-
-static void *
-lnet_ni_seq_start (struct seq_file *s, loff_t *pos)
-{
- lnet_ni_seq_iterator_t *lnsi;
- int rc;
-
- LIBCFS_ALLOC(lnsi, sizeof(*lnsi));
- if (lnsi == NULL)
- return NULL;
-
- lnsi->lnsi_ni = NULL;
- rc = lnet_ni_seq_seek(lnsi, *pos);
- if (rc == 0)
- return lnsi;
-
- LIBCFS_FREE(lnsi, sizeof(*lnsi));
- return NULL;
-}
-
-static void
-lnet_ni_seq_stop (struct seq_file *s, void *iter)
-{
- lnet_ni_seq_iterator_t *lnsi = iter;
+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
+ },
+};
- if (lnsi != NULL)
- LIBCFS_FREE(lnsi, sizeof(*lnsi));
-}
-
-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;
- }
-
- *pos = next;
- return lnsi;
+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);
-#endif
-}
-
-#else
-
-void
-lnet_proc_init(void)
-{
-}
-
-void
-lnet_proc_fini(void)
-{
-}
+#ifdef CONFIG_SYSCTL
+ if (lnet_table_header != NULL)
+ unregister_sysctl_table(lnet_table_header);
+ lnet_table_header = NULL;
#endif
+}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff