-/* -*- 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, 2017, Intel Corporation.
*
- * This file is part of Portals
- * http://sourceforge.net/projects/sandiaportals/
+ * This file is part of Lustre, https://wiki.whamcloud.com/
*
* Portals is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
*/
#define DEBUG_SUBSYSTEM S_LNET
-#include <libcfs/libcfs.h>
-#include <lnet/lib-lnet.h>
-
-#if defined(__KERNEL__) && defined(LNET_ROUTER)
-
-/* this is really lnet_proc.c */
-
-static cfs_sysctl_table_header_t *lnet_table_header = NULL;
-
-#ifndef HAVE_SYSCTL_UNNUMBERED
-#define CTL_LNET (0x100)
-enum {
- PSDEV_LNET_STATS = 100,
- PSDEV_LNET_ROUTES,
- PSDEV_LNET_ROUTERS,
- PSDEV_LNET_PEERS,
- PSDEV_LNET_BUFFERS,
- PSDEV_LNET_NIS,
-};
-#else
-#define CTL_LNET CTL_UNNUMBERED
-#define PSDEV_LNET_STATS CTL_UNNUMBERED
-#define PSDEV_LNET_ROUTES CTL_UNNUMBERED
-#define PSDEV_LNET_ROUTERS CTL_UNNUMBERED
-#define PSDEV_LNET_PEERS CTL_UNNUMBERED
-#define PSDEV_LNET_BUFFERS CTL_UNNUMBERED
-#define PSDEV_LNET_NIS CTL_UNNUMBERED
-#endif
-static int __proc_lnet_stats(void *data, int write,
- loff_t pos, void *buffer, int nob)
-{
- int rc;
- lnet_counters_t *ctrs;
- int len;
- char *tmpstr;
- const int tmpsiz = 256; /* 7 %u and 4 LPU64 */
-
- if (write) {
- LNET_LOCK();
- memset(&the_lnet.ln_counters, 0, sizeof(the_lnet.ln_counters));
- LNET_UNLOCK();
- 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_LOCK();
- *ctrs = the_lnet.ln_counters;
- LNET_UNLOCK();
-
- 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);
-
- if (pos >= min_t(int, len, strlen(tmpstr)))
- rc = 0;
- else
- rc = trace_copyout_string(buffer, nob,
- tmpstr + pos, "\n");
-
- LIBCFS_FREE(tmpstr, tmpsiz);
- LIBCFS_FREE(ctrs, sizeof(*ctrs));
- return rc;
-}
+#include <linux/uaccess.h>
-DECLARE_PROC_HANDLER(proc_lnet_stats);
-
-int LL_PROC_PROTO(proc_lnet_routes)
-{
- int rc = 0;
- char *tmpstr;
- char *s;
- const int tmpsiz = 256;
- int len;
- int *ver_p = (unsigned int *)(&filp->private_data);
-
- DECLARE_LL_PROC_PPOS_DECL;
-
- 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 %7s %s\n",
- "net", "hops", "state", "router");
- LASSERT (tmpstr + tmpsiz - s > 0);
-
- LNET_LOCK();
- *ver_p = (unsigned int)the_lnet.ln_remote_nets_version;
- LNET_UNLOCK();
- } else {
- struct list_head *n;
- struct list_head *r;
- lnet_route_t *route = NULL;
- lnet_remotenet_t *rnet = NULL;
- int skip = *ppos - 1;
-
- LNET_LOCK();
-
- if (*ver_p != (unsigned int)the_lnet.ln_remote_nets_version) {
- LNET_UNLOCK();
- LIBCFS_FREE(tmpstr, tmpsiz);
- return -ESTALE;
- }
-
- n = the_lnet.ln_remote_nets.next;
-
- while (n != &the_lnet.ln_remote_nets && route == NULL) {
- rnet = list_entry(n, lnet_remotenet_t, lrn_list);
-
- r = rnet->lrn_routes.next;
+#include <libcfs/libcfs.h>
+#include <lnet/lib-lnet.h>
- while (r != &rnet->lrn_routes) {
- lnet_route_t *re = list_entry(r, lnet_route_t,
- lr_list);
- if (skip == 0) {
- route = re;
- break;
- } else
- skip--;
+/* This is really lnet_proc.c. You might need to update sanity test 215
+ * if any file format is changed. */
- r = r->next;
- }
+#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)
- n = n->next;
- }
+#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)
- if (route != NULL) {
- __u32 net = rnet->lrn_net;
- unsigned int hops = route->lr_hops;
- lnet_nid_t nid = route->lr_gateway->lp_nid;
- int alive = route->lr_gateway->lp_alive;
+#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)
- s += snprintf(s, tmpstr + tmpsiz - s, "%-8s %4u %7s %s\n",
- libcfs_net2str(net), hops,
- alive ? "up" : "down", libcfs_nid2str(nid));
- LASSERT (tmpstr + tmpsiz - s > 0);
- }
+#define LNET_PROC_CPT_GET(pos) \
+ (int)(((pos) >> LNET_PROC_VPOS_BITS) & LNET_PROC_CPT_MASK)
- LNET_UNLOCK();
- }
+#define LNET_PROC_VER_GET(pos) \
+ (int)(((pos) >> LNET_PROC_HPOS_BITS) & LNET_PROC_VER_MASK)
- len = s - tmpstr; /* how many bytes was written */
+#define LNET_PROC_HASH_GET(pos) \
+ (int)(((pos) >> LNET_PROC_HOFF_BITS) & LNET_PROC_HASH_MASK)
- 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;
- }
+#define LNET_PROC_HOFF_GET(pos) \
+ (int)((pos) & LNET_PROC_HOFF_MASK)
- LIBCFS_FREE(tmpstr, tmpsiz);
+#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))
- if (rc == 0)
- *lenp = len;
+#define LNET_PROC_VERSION(v) ((unsigned int)((v) & LNET_PROC_VER_MASK))
- return rc;
+static int __proc_lnet_stats(void *data, int write,
+ loff_t pos, void __user *buffer, int nob)
+{
+ int rc;
+ struct lnet_counters *ctrs;
+ struct lnet_counters_common common;
+ 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);
+ common = ctrs->lct_common;
+
+ len = snprintf(tmpstr, tmpsiz,
+ "%u %u %u %u %u %u %u %llu %llu "
+ "%llu %llu",
+ common.lcc_msgs_alloc, common.lcc_msgs_max,
+ common.lcc_errors,
+ common.lcc_send_count, common.lcc_recv_count,
+ common.lcc_route_count, common.lcc_drop_count,
+ common.lcc_send_length, common.lcc_recv_length,
+ common.lcc_route_length, common.lcc_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;
}
-int LL_PROC_PROTO(proc_lnet_routers)
+static int
+proc_lnet_stats(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_p = (unsigned int *)(&filp->private_data);
-
- DECLARE_LL_PROC_PPOS_DECL;
-
- 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_LOCK();
- *ver_p = (unsigned int)the_lnet.ln_routers_version;
- LNET_UNLOCK();
- } else {
- struct list_head *r;
- lnet_peer_t *peer = NULL;
- int skip = *ppos - 1;
-
- LNET_LOCK();
-
- if (*ver_p != (unsigned int)the_lnet.ln_routers_version) {
- LNET_UNLOCK();
- LIBCFS_FREE(tmpstr, tmpsiz);
- return -ESTALE;
- }
-
- r = the_lnet.ln_routers.next;
-
- while (r != &the_lnet.ln_routers) {
- lnet_peer_t *lp = list_entry(r, lnet_peer_t,
- lp_rtr_list);
-
- if (skip == 0) {
- peer = lp;
- break;
- } else
- skip--;
-
- r = r->next;
- }
-
- 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(now - peer->lp_ping_timestamp);
- int down_ni = lnet_router_down_ni(peer, LNET_NIDNET(LNET_NID_ANY));
-
- 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(deadline - now),
- down_ni, libcfs_nid2str(nid));
- LASSERT (tmpstr + tmpsiz - s > 0);
- }
-
- LNET_UNLOCK();
- }
-
- 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;
+ return lprocfs_call_handler(table->data, write, ppos, buffer, lenp,
+ __proc_lnet_stats);
}
-/*
- * NB: we don't use the highest bit of *ppos because it's signed;
- * next 9 bits is used to stash idx (assuming that
- * LNET_PEER_HASHSIZE < 512)
- */
-#define LNET_LOFFT_BITS (sizeof(loff_t) * 8)
-#define LNET_PHASH_BITS 9
-#define LNET_PHASH_IDX_MASK (((1ULL << LNET_PHASH_BITS) - 1) << \
- (LNET_LOFFT_BITS - LNET_PHASH_BITS - 1))
-#define LNET_PHASH_NUM_MASK ((1ULL << \
- (LNET_LOFFT_BITS - LNET_PHASH_BITS -1)) - 1)
-#define LNET_PHASH_IDX_GET(pos) (int)(((pos) & LNET_PHASH_IDX_MASK) >> \
- (LNET_LOFFT_BITS - LNET_PHASH_BITS -1))
-#define LNET_PHASH_NUM_GET(pos) (int)((pos) & LNET_PHASH_NUM_MASK)
-#define LNET_PHASH_POS_MAKE(idx, num) ((((loff_t)idx) << (LNET_LOFFT_BITS - \
- LNET_PHASH_BITS -1)) | (num))
-
-int LL_PROC_PROTO(proc_lnet_peers)
+static int
+proc_lnet_routes(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_p = (unsigned int *)(&filp->private_data);
- int idx;
- int num;
-
- DECLARE_LL_PROC_PPOS_DECL;
-
- idx = LNET_PHASH_IDX_GET(*ppos);
- num = LNET_PHASH_NUM_GET(*ppos);
-
- CLASSERT ((1 << LNET_PHASH_BITS) > LNET_PEER_HASHSIZE);
-
- 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 %4s %5s %5s %5s %5s %5s %5s %s\n",
- "nid", "refs", "state", "max",
- "rtr", "min", "tx", "min", "queue");
- LASSERT (tmpstr + tmpsiz - s > 0);
-
- LNET_LOCK();
- *ver_p = (unsigned int)the_lnet.ln_peertable_version;
- LNET_UNLOCK();
-
- num++;
- } else {
- struct list_head *p = NULL;
- lnet_peer_t *peer = NULL;
- int skip = num - 1;
-
- LNET_LOCK();
-
- if (*ver_p != (unsigned int)the_lnet.ln_peertable_version) {
- LNET_UNLOCK();
- LIBCFS_FREE(tmpstr, tmpsiz);
- return -ESTALE;
- }
+ 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;
+ struct lnet_route *route = NULL;
+ struct lnet_remotenet *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, struct lnet_remotenet,
+ lrn_list);
+
+ r = rnet->lrn_routes.next;
+
+ while (r != &rnet->lrn_routes) {
+ struct lnet_route *re =
+ list_entry(r, struct lnet_route,
+ 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 %4d %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;
+}
- 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 (skip == 0) {
- peer = lp;
-
- /* minor optimiztion: start from idx+1
- * on next iteration if we've just
- * drained lp_hashlist */
- if (lp->lp_hashlist.next ==
- &the_lnet.ln_peer_hash[idx]) {
- num = 1;
- idx++;
- } else
- num++;
-
- break;
- } else
- skip--;
-
- p = lp->lp_hashlist.next;
- }
-
- if (peer != NULL)
- break;
-
- p = NULL;
- num = 1;
- idx++;
- }
+static int
+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;
+ time64_t now = ktime_get_seconds();
+ time64_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;
+ time64_t last_ping = now - peer->lpni_ping_timestamp;
+ int down_ni = 0;
+ struct lnet_route *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 %12llu %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 %12llu %9d %8llu %7d %s\n",
+ nrefs, nrtrrefs, alive_cnt,
+ alive ? "up" : "down", last_ping,
+ pingsent,
+ 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;
+}
- if (peer != NULL) {
- lnet_nid_t nid = peer->lp_nid;
- int nrefs = peer->lp_refcount;
- 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_isrouter(peer) ||
- peer->lp_ni->ni_peertimeout > 0)
- aliveness = peer->lp_alive ? "up" : "down";
-
- s += snprintf(s, tmpstr + tmpsiz - s,
- "%-24s %4d %5s %5d %5d %5d %5d %5d %d\n",
- libcfs_nid2str(nid), nrefs, aliveness,
- maxcr, rtrcr, minrtrcr, txcr,
- mintxcr, txqnob);
- LASSERT (tmpstr + tmpsiz - s > 0);
+/* 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
+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 = NULL;
+ 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;
+
+ if (write) {
+ int i;
+ struct lnet_peer_ni *peer;
+
+ cfs_percpt_for_each(ptable, i, the_lnet.ln_peer_tables) {
+ lnet_net_lock(i);
+ for (hash = 0; hash < LNET_PEER_HASH_SIZE; hash++) {
+ list_for_each_entry(peer,
+ &ptable->pt_hash[hash],
+ lpni_hashlist) {
+ peer->lpni_mintxcredits =
+ peer->lpni_txcredits;
+ peer->lpni_minrtrcredits =
+ peer->lpni_rtrcredits;
+ }
+ }
+ lnet_net_unlock(i);
+ }
+ *ppos += *lenp;
+ return 0;
+ }
+
+ if (*lenp == 0)
+ return 0;
+
+ CLASSERT(LNET_PROC_HASH_BITS >= LNET_PEER_HASH_BITS);
+
+ 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++;
}
- LNET_UNLOCK();
- }
-
- 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_PHASH_POS_MAKE(idx, num);
- }
-
- LIBCFS_FREE(tmpstr, tmpsiz);
-
- if (rc == 0)
- *lenp = len;
-
- return rc;
+ if (peer != NULL) {
+ lnet_nid_t nid = peer->lpni_nid;
+ int nrefs = atomic_read(&peer->lpni_refcount);
+ time64_t lastalive = -1;
+ char *aliveness = "NA";
+ int maxcr = (peer->lpni_net) ?
+ peer->lpni_net->net_tunables.lct_peer_tx_credits : 0;
+ 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)) {
+ time64_t now = ktime_get_seconds();
+
+ lastalive = now - peer->lpni_last_alive;
+
+ /* 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 %5lld %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 *buffer, int nob)
+ loff_t pos, void __user *buffer, int nob)
{
-
- int rc;
- int len;
- char *s;
- char *tmpstr;
- const int tmpsiz = 64 * (LNET_NRBPOOLS + 1); /* (4 %d) * 4 */
- int idx;
-
- LASSERT (!write);
-
- 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);
-
- LNET_LOCK();
-
- for (idx = 0; idx < LNET_NRBPOOLS; idx++) {
- lnet_rtrbufpool_t *rbp = &the_lnet.ln_rtrpools[idx];
-
- int npages = rbp->rbp_npages;
- int nbuf = rbp->rbp_nbuffers;
- int cr = rbp->rbp_credits;
- int mincr = rbp->rbp_mincredits;
-
- s += snprintf(s, tmpstr + tmpsiz - s,
- "%5d %5d %7d %7d\n",
- npages, nbuf, cr, mincr);
- LASSERT (tmpstr + tmpsiz - s > 0);
- }
-
- LNET_UNLOCK();
-
- len = s - tmpstr;
-
- if (pos >= min_t(int, len, strlen(tmpstr)))
- rc = 0;
- else
- rc = trace_copyout_string(buffer, nob,
- tmpstr + pos, NULL);
-
- LIBCFS_FREE(tmpstr, tmpsiz);
- return rc;
+ 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++) {
+ struct lnet_rtrbufpool *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);
+ }
+
+ out:
+ len = s - tmpstr;
+
+ if (pos >= min_t(int, len, strlen(tmpstr)))
+ rc = 0;
+ else
+ rc = cfs_trace_copyout_string(buffer, nob,
+ tmpstr + pos, NULL);
+
+ LIBCFS_FREE(tmpstr, tmpsiz);
+ return rc;
}
-DECLARE_PROC_HANDLER(proc_lnet_buffers);
-
-int LL_PROC_PROTO(proc_lnet_nis)
+static int
+proc_lnet_buffers(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;
-
- DECLARE_LL_PROC_PPOS_DECL;
-
- 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 {
- struct list_head *n;
- lnet_ni_t *ni = NULL;
- int skip = *ppos - 1;
-
- LNET_LOCK();
-
- n = the_lnet.ln_nis.next;
-
- while (n != &the_lnet.ln_nis) {
- lnet_ni_t *a_ni = list_entry(n, lnet_ni_t, ni_list);
-
- if (skip == 0) {
- ni = a_ni;
- break;
- } else
- skip--;
-
- n = n->next;
- }
-
- if (ni != NULL) {
- cfs_time_t now = cfs_time_current();
- int maxtxcr = ni->ni_maxtxcredits;
- int txcr = ni->ni_txcredits;
- int mintxcr = ni->ni_mintxcredits;
- int npeertxcr = ni->ni_peertxcredits;
- int npeerrtrcr = ni->ni_peerrtrcredits;
- lnet_nid_t nid = ni->ni_nid;
- int nref = ni->ni_refcount;
- int last_alive;
- char *stat;
-
- last_alive = (the_lnet.ln_routing) ?
- cfs_duration_sec(now - ni->ni_last_alive) : -1;
- if (ni->ni_lnd->lnd_type == LOLND) /* @lo forever alive */
- last_alive = 0;
-
- LASSERT (ni->ni_status != NULL);
- stat = (ni->ni_status->ns_status == LNET_NI_STATUS_UP) ?
- "up" : "down";
-
- s += snprintf(s, tmpstr + tmpsiz - s,
- "%-24s %6s %5d %4d %4d %4d %5d %5d %5d\n",
- libcfs_nid2str(nid), stat, last_alive, nref,
- npeertxcr, npeerrtrcr, maxtxcr,
- txcr, mintxcr);
- LASSERT (tmpstr + tmpsiz - s > 0);
- }
-
- LNET_UNLOCK();
- }
-
- 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 lprocfs_call_handler(table->data, write, ppos, buffer, lenp,
+ __proc_lnet_buffers);
+}
- return rc;
+static int
+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;
+
+ if (*lenp == 0)
+ return 0;
+
+ if (write) {
+ /* Just reset the min stat. */
+ struct lnet_ni *ni;
+ struct lnet_net *net;
+
+ lnet_net_lock(0);
+
+ list_for_each_entry(net, &the_lnet.ln_nets, net_list) {
+ list_for_each_entry(ni, &net->net_ni_list, ni_netlist) {
+ struct lnet_tx_queue *tq;
+ int i;
+ int j;
+
+ 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);
+ tq->tq_credits_min = tq->tq_credits;
+ if (i != 0)
+ lnet_net_unlock(i);
+ }
+ }
+ }
+ lnet_net_unlock(0);
+ *ppos += *lenp;
+ 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 {
+ struct lnet_ni *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();
+ time64_t last_alive = -1;
+ int i;
+ int j;
+
+ if (the_lnet.ln_routing)
+ last_alive = now - ni->ni_last_alive;
+
+ 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);
+
+ /* @lo forever alive */
+ if (ni->ni_net->net_lnd->lnd_type == LOLND) {
+ last_alive = 0;
+ stat = "up";
+ }
+
+ /* 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 %5lld %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;
}
-static cfs_sysctl_table_t lnet_table[] = {
- /*
- * NB No .strategy entries have been provided since sysctl(8) prefers
- * to go via /proc for portability.
- */
- {
- .ctl_name = PSDEV_LNET_STATS,
- .procname = "stats",
- .mode = 0644,
- .proc_handler = &proc_lnet_stats,
- },
- {
- .ctl_name = PSDEV_LNET_ROUTES,
- .procname = "routes",
- .mode = 0444,
- .proc_handler = &proc_lnet_routes,
- },
- {
- .ctl_name = PSDEV_LNET_ROUTERS,
- .procname = "routers",
- .mode = 0444,
- .proc_handler = &proc_lnet_routers,
- },
- {
- .ctl_name = PSDEV_LNET_PEERS,
- .procname = "peers",
- .mode = 0444,
- .proc_handler = &proc_lnet_peers,
- },
- {
- .ctl_name = PSDEV_LNET_PEERS,
- .procname = "buffers",
- .mode = 0444,
- .proc_handler = &proc_lnet_buffers,
- },
- {
- .ctl_name = PSDEV_LNET_NIS,
- .procname = "nis",
- .mode = 0444,
- .proc_handler = &proc_lnet_nis,
- },
- {0}
+struct lnet_portal_rotors {
+ int pr_value;
+ const char *pr_name;
+ const char *pr_desc;
};
-static cfs_sysctl_table_t top_table[] = {
- {
- .ctl_name = CTL_LNET,
- .procname = "lnet",
- .mode = 0555,
- .data = NULL,
- .maxlen = 0,
- .child = lnet_table,
- },
- {
- .ctl_name = 0
- }
+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
+ },
};
-void
-lnet_proc_init(void)
+static int __proc_lnet_portal_rotor(void *data, int write,
+ loff_t pos, void __user *buffer, int nob)
{
-#ifdef CONFIG_SYSCTL
- if (lnet_table_header == NULL)
- lnet_table_header = cfs_register_sysctl_table(top_table, 0);
-#endif
+ 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 = strim(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;
}
-void
-lnet_proc_fini(void)
+static int
+proc_lnet_portal_rotor(struct ctl_table *table, int write, void __user *buffer,
+ size_t *lenp, loff_t *ppos)
{
-#ifdef CONFIG_SYSCTL
- if (lnet_table_header != NULL)
- cfs_unregister_sysctl_table(lnet_table_header);
-
- lnet_table_header = NULL;
-#endif
+ return lprocfs_call_handler(table->data, write, ppos, buffer, lenp,
+ __proc_lnet_portal_rotor);
}
-#else
-void
-lnet_proc_init(void)
+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 = 0644,
+ .proc_handler = &proc_lnet_peers,
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "buffers",
+ .mode = 0444,
+ .proc_handler = &proc_lnet_buffers,
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "nis",
+ .mode = 0644,
+ .proc_handler = &proc_lnet_nis,
+ },
+ {
+ INIT_CTL_NAME
+ .procname = "portal_rotor",
+ .mode = 0644,
+ .proc_handler = &proc_lnet_portal_rotor,
+ },
+ { .procname = NULL }
+};
+
+void lnet_router_debugfs_init(void)
{
+ lnet_insert_debugfs(lnet_table);
}
-void
-lnet_proc_fini(void)
+void lnet_router_debugfs_fini(void)
{
+ lnet_remove_debugfs(lnet_table);
}
-
-#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff