X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;ds=inline;f=lnet%2Flnet%2Frouter_proc.c;h=d07ba781e7a4db5527de49f9d97070240fd6fd43;hb=d51e4a48fd75bd9840bdf5d84701efb8d18fd669;hp=97585ce8ee5a2d1c0b3a00fc62e5fed2bc8cd120;hpb=e531dc437c56a08a65de9074a511faa55184712b;p=fs%2Flustre-release.git diff --git a/lnet/lnet/router_proc.c b/lnet/lnet/router_proc.c index 97585ce..d07ba78 100644 --- a/lnet/lnet/router_proc.c +++ b/lnet/lnet/router_proc.c @@ -1,7 +1,7 @@ /* * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. * - * Copyright (c) 2011, Whamcloud, Inc. + * Copyright (c) 2011, 2013, Intel Corporation. * * This file is part of Portals * http://sourceforge.net/projects/sandiaportals/ @@ -41,6 +41,7 @@ enum { PSDEV_LNET_PEERS, PSDEV_LNET_BUFFERS, PSDEV_LNET_NIS, + PSDEV_LNET_PTL_ROTOR, }; #else #define CTL_LNET CTL_UNNUMBERED @@ -50,13 +51,14 @@ enum { #define PSDEV_LNET_PEERS CTL_UNNUMBERED #define PSDEV_LNET_BUFFERS CTL_UNNUMBERED #define PSDEV_LNET_NIS CTL_UNNUMBERED +#define PSDEV_LNET_PTL_ROTOR CTL_UNNUMBERED #endif #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 +#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) @@ -197,37 +199,45 @@ int LL_PROC_PROTO(proc_lnet_routes) lnet_route_t *route = NULL; lnet_remotenet_t *rnet = NULL; int skip = off - 1; + cfs_list_t *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; - } + LIBCFS_FREE(tmpstr, tmpsiz); + return -ESTALE; + } - n = the_lnet.ln_remote_nets.next; + for (i = 0; i < LNET_REMOTE_NETS_HASH_SIZE && route == NULL; + i++) { + rn_list = &the_lnet.ln_remote_nets_hash[i]; - while (n != &the_lnet.ln_remote_nets && route == NULL) { - rnet = cfs_list_entry(n, lnet_remotenet_t, lrn_list); + n = rn_list->next; - r = rnet->lrn_routes.next; + while (n != rn_list && route == NULL) { + rnet = cfs_list_entry(n, lnet_remotenet_t, + lrn_list); - while (r != &rnet->lrn_routes) { - lnet_route_t *re = - cfs_list_entry(r, lnet_route_t, - lr_list); - if (skip == 0) { - route = re; - break; - } + r = rnet->lrn_routes.next; - skip--; - r = r->next; - } + while (r != &rnet->lrn_routes) { + lnet_route_t *re = + cfs_list_entry(r, lnet_route_t, + lr_list); + if (skip == 0) { + route = re; + break; + } - n = n->next; - } + skip--; + r = r->next; + } + + n = n->next; + } + } if (route != NULL) { __u32 net = rnet->lrn_net; @@ -411,8 +421,8 @@ int LL_PROC_PROTO(proc_lnet_peers) char *s; int cpt = LNET_PROC_CPT_GET(*ppos); int ver = LNET_PROC_VER_GET(*ppos); - int hoff = LNET_PROC_HOFF_GET(*ppos); int hash = LNET_PROC_HASH_GET(*ppos); + int hoff = LNET_PROC_HOFF_GET(*ppos); int rc = 0; int len; @@ -422,8 +432,10 @@ int LL_PROC_PROTO(proc_lnet_peers) if (*lenp == 0) return 0; - if (cpt >= LNET_CPT_NUMBER) + if (cpt >= LNET_CPT_NUMBER) { + *lenp = 0; return 0; + } LIBCFS_ALLOC(tmpstr, tmpsiz); if (tmpstr == NULL) @@ -440,11 +452,14 @@ int LL_PROC_PROTO(proc_lnet_peers) hoff++; } else { - struct lnet_peer *peer = NULL; - cfs_list_t *p = NULL; - int skip = hoff - 1; - + struct lnet_peer *peer; + cfs_list_t *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) @@ -534,14 +549,14 @@ int LL_PROC_PROTO(proc_lnet_peers) } else { /* peer is NULL */ lnet_net_unlock(cpt); + } - if (hash == LNET_PEER_HASH_SIZE && - cpt < LNET_CPT_NUMBER - 1) { - cpt++; - hash = 0; - hoff = 1; + if (hash == LNET_PEER_HASH_SIZE) { + cpt++; + hash = 0; + hoff = 1; + if (peer == NULL && cpt < LNET_CPT_NUMBER) goto again; - } } } @@ -744,6 +759,107 @@ int LL_PROC_PROTO(proc_lnet_nis) return rc; } +struct lnet_portal_rotors { + int pr_value; + const char *pr_name; + const char *pr_desc; +}; + +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 + }, +}; + +extern int portal_rotor; + +static int __proc_lnet_portal_rotor(void *data, int write, + loff_t pos, void *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 (cfs_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; +} +DECLARE_PROC_HANDLER(proc_lnet_portal_rotor); + static cfs_sysctl_table_t lnet_table[] = { /* * NB No .strategy entries have been provided since sysctl(8) prefers @@ -786,8 +902,14 @@ static cfs_sysctl_table_t lnet_table[] = { .proc_handler = &proc_lnet_nis, }, { - INIT_CTL_NAME(0) - } + INIT_CTL_NAME(PSDEV_LNET_PTL_ROTOR) + .procname = "portal_rotor", + .mode = 0644, + .proc_handler = &proc_lnet_portal_rotor, + }, + { + INIT_CTL_NAME(0) + } }; static cfs_sysctl_table_t top_table[] = {