*/
/*
* This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
*
* lnet/lnet/lib-move.c
*
#include <lnet/lib-lnet.h>
#include <linux/nsproxy.h>
+#include <lnet/lnet_rdma.h>
#include <net/net_namespace.h>
static int local_nid_dist_zero = 1;
msg->msg_hdr.payload_length = cpu_to_le32(len);
}
-static void
+void
lnet_ni_send(struct lnet_ni *ni, struct lnet_msg *msg)
{
void *priv = msg->msg_private;
int rc;
LASSERT(!in_interrupt());
- LASSERT(ni->ni_nid == LNET_NID_LO_0 ||
+ LASSERT(nid_is_lo0(&ni->ni_nid) ||
(msg->msg_txcredit && msg->msg_peertxcredit));
rc = (ni->ni_net->net_lnd->lnd_send)(ni, priv, msg);
if (rc != 0) {
CERROR("recv from %s / send to %s aborted: "
"eager_recv failed %d\n",
- libcfs_nid2str(msg->msg_rxpeer->lpni_nid),
+ libcfs_nidstr(&msg->msg_rxpeer->lpni_nid),
libcfs_id2str(msg->msg_target), rc);
LASSERT(rc < 0); /* required by my callers */
}
/* can't get here if we're sending to the loopback interface */
if (the_lnet.ln_loni)
- LASSERT(lp->lpni_nid != the_lnet.ln_loni->ni_nid);
+ LASSERT(!nid_same(&lp->lpni_nid, &the_lnet.ln_loni->ni_nid));
/* NB 'lp' is always the next hop */
if ((msg->msg_target.pid & LNET_PID_USERFLAG) == 0 &&
}
}
+ if (unlikely(!list_empty(&the_lnet.ln_delay_rules)) &&
+ lnet_delay_rule_match_locked(&msg->msg_hdr, msg)) {
+ msg->msg_tx_delayed = 1;
+ return LNET_CREDIT_WAIT;
+ }
+
/* unset the tx_delay flag as we're going to send it now */
msg->msg_tx_delayed = 0;
* preferred, then let's use it
*/
if (best_ni) {
- lpni_is_preferred = lnet_peer_is_pref_nid_locked(lpni,
- best_ni->ni_nid);
+ /* FIXME need to handle large-addr nid */
+ lpni_is_preferred = lnet_peer_is_pref_nid_locked(
+ lpni, lnet_nid_to_nid4(&best_ni->ni_nid));
CDEBUG(D_NET, "%s lpni_is_preferred = %d\n",
- libcfs_nid2str(best_ni->ni_nid),
+ libcfs_nidstr(&best_ni->ni_nid),
lpni_is_preferred);
} else {
lpni_is_preferred = false;
if (best_lpni)
CDEBUG(D_NET, "n:[%s, %s] h:[%d, %d] p:[%d, %d] c:[%d, %d] s:[%d, %d]\n",
- libcfs_nid2str(lpni->lpni_nid),
- libcfs_nid2str(best_lpni->lpni_nid),
+ libcfs_nidstr(&lpni->lpni_nid),
+ libcfs_nidstr(&best_lpni->lpni_nid),
lpni_healthv, best_lpni_healthv,
lpni_sel_prio, best_sel_prio,
lpni->lpni_txcredits, best_lpni_credits,
}
CDEBUG(D_NET, "sd_best_lpni = %s\n",
- libcfs_nid2str(best_lpni->lpni_nid));
+ libcfs_nidstr(&best_lpni->lpni_nid));
return best_lpni;
}
list_for_each_entry(route, &rnet->lrn_routes, lr_list) {
if (!lnet_is_route_alive(route))
continue;
- gw_pnid = route->lr_gateway->lp_primary_nid;
+ gw_pnid = lnet_nid_to_nid4(&route->lr_gateway->lp_primary_nid);
/* no protection on below fields, but it's harmless */
if (last_route && (last_route->lr_seq - route->lr_seq < 0))
return best_route;
}
+static inline unsigned int
+lnet_dev_prio_of_md(struct lnet_ni *ni, unsigned int dev_idx)
+{
+ if (dev_idx == UINT_MAX)
+ return UINT_MAX;
+
+ if (!ni || !ni->ni_net || !ni->ni_net->net_lnd ||
+ !ni->ni_net->net_lnd->lnd_get_dev_prio)
+ return UINT_MAX;
+
+ return ni->ni_net->net_lnd->lnd_get_dev_prio(ni, dev_idx);
+}
+
static struct lnet_ni *
lnet_get_best_ni(struct lnet_net *local_net, struct lnet_ni *best_ni,
struct lnet_peer *peer, struct lnet_peer_net *peer_net,
- int md_cpt)
+ struct lnet_msg *msg, int md_cpt)
{
- struct lnet_ni *ni = NULL;
+ struct lnet_libmd *md = msg->msg_md;
+ unsigned int offset = msg->msg_offset;
unsigned int shortest_distance;
+ struct lnet_ni *ni = NULL;
int best_credits;
int best_healthv;
__u32 best_sel_prio;
+ unsigned int best_dev_prio;
+ unsigned int dev_idx = UINT_MAX;
+ struct page *page = lnet_get_first_page(md, offset);
+ msg->msg_rdma_force = lnet_is_rdma_only_page(page);
+
+ if (msg->msg_rdma_force)
+ dev_idx = lnet_get_dev_idx(page);
/*
* If there is no peer_ni that we can send to on this network,
if (best_ni == NULL) {
best_sel_prio = LNET_MAX_SELECTION_PRIORITY;
shortest_distance = UINT_MAX;
+ best_dev_prio = UINT_MAX;
best_credits = INT_MIN;
best_healthv = 0;
} else {
+ best_dev_prio = lnet_dev_prio_of_md(best_ni, dev_idx);
shortest_distance = cfs_cpt_distance(lnet_cpt_table(), md_cpt,
best_ni->ni_dev_cpt);
best_credits = atomic_read(&best_ni->ni_tx_credits);
int ni_healthv;
int ni_fatal;
__u32 ni_sel_prio;
+ unsigned int ni_dev_prio;
ni_credits = atomic_read(&ni->ni_tx_credits);
ni_healthv = atomic_read(&ni->ni_healthv);
md_cpt,
ni->ni_dev_cpt);
+ ni_dev_prio = lnet_dev_prio_of_md(ni, dev_idx);
+
/*
* All distances smaller than the NUMA range
* are treated equally.
distance = lnet_numa_range;
/*
- * Select on health, shorter distance, available
- * credits, then round-robin.
+ * Select on health, selection policy, direct dma prio,
+ * shorter distance, available credits, then round-robin.
*/
if (ni_fatal)
continue;
if (best_ni)
- CDEBUG(D_NET, "compare ni %s [c:%d, d:%d, s:%d, p:%u] with best_ni %s [c:%d, d:%d, s:%d, p:%u]\n",
- libcfs_nid2str(ni->ni_nid), ni_credits, distance,
- ni->ni_seq, ni_sel_prio,
- (best_ni) ? libcfs_nid2str(best_ni->ni_nid)
+ CDEBUG(D_NET, "compare ni %s [c:%d, d:%d, s:%d, p:%u, g:%u] with best_ni %s [c:%d, d:%d, s:%d, p:%u, g:%u]\n",
+ libcfs_nidstr(&ni->ni_nid), ni_credits, distance,
+ ni->ni_seq, ni_sel_prio, ni_dev_prio,
+ (best_ni) ? libcfs_nidstr(&best_ni->ni_nid)
: "not selected", best_credits, shortest_distance,
(best_ni) ? best_ni->ni_seq : 0,
- best_sel_prio);
+ best_sel_prio, best_dev_prio);
else
goto select_ni;
else if (ni_sel_prio < best_sel_prio)
goto select_ni;
+ if (ni_dev_prio > best_dev_prio)
+ continue;
+ else if (ni_dev_prio < best_dev_prio)
+ goto select_ni;
+
if (distance > shortest_distance)
continue;
else if (distance < shortest_distance)
select_ni:
best_sel_prio = ni_sel_prio;
+ best_dev_prio = ni_dev_prio;
shortest_distance = distance;
best_healthv = ni_healthv;
best_ni = ni;
}
CDEBUG(D_NET, "selected best_ni %s\n",
- (best_ni) ? libcfs_nid2str(best_ni->ni_nid) : "no selection");
+ (best_ni) ? libcfs_nidstr(&best_ni->ni_nid) : "no selection");
return best_ni;
}
/* No send credit hassles with LOLND */
lnet_ni_addref_locked(the_lnet.ln_loni, cpt);
- msg->msg_hdr.dest_nid = cpu_to_le64(the_lnet.ln_loni->ni_nid);
+ msg->msg_hdr.dest_nid =
+ cpu_to_le64(lnet_nid_to_nid4(&the_lnet.ln_loni->ni_nid));
if (!msg->msg_routing)
msg->msg_hdr.src_nid =
- cpu_to_le64(the_lnet.ln_loni->ni_nid);
- msg->msg_target.nid = the_lnet.ln_loni->ni_nid;
+ cpu_to_le64(lnet_nid_to_nid4(&the_lnet.ln_loni->ni_nid));
+ msg->msg_target.nid = lnet_nid_to_nid4(&the_lnet.ln_loni->ni_nid);
lnet_msg_commit(msg, cpt);
msg->msg_txni = the_lnet.ln_loni;
* local ni and local net so that we pick the next ones
* in Round Robin.
*/
- best_lpni->lpni_seq++;
best_lpni->lpni_peer_net->lpn_seq++;
- best_ni->ni_seq++;
+ best_lpni->lpni_seq = best_lpni->lpni_peer_net->lpn_seq;
best_ni->ni_net->net_seq++;
+ best_ni->ni_seq = best_ni->ni_net->net_seq;
CDEBUG(D_NET, "%s NI seq info: [%d:%d:%d:%u] %s LPNI seq info [%d:%d:%d:%u]\n",
- libcfs_nid2str(best_ni->ni_nid),
+ libcfs_nidstr(&best_ni->ni_nid),
best_ni->ni_seq, best_ni->ni_net->net_seq,
atomic_read(&best_ni->ni_tx_credits),
best_ni->ni_sel_priority,
- libcfs_nid2str(best_lpni->lpni_nid),
+ libcfs_nidstr(&best_lpni->lpni_nid),
best_lpni->lpni_seq, best_lpni->lpni_peer_net->lpn_seq,
best_lpni->lpni_txcredits,
best_lpni->lpni_sel_priority);
* the configuration has changed. We don't have a hold on the best_ni
* yet, and it may have vanished.
*/
- cpt2 = lnet_cpt_of_nid_locked(best_lpni->lpni_nid, best_ni);
+ cpt2 = lnet_cpt_of_nid_locked(&best_lpni->lpni_nid, best_ni);
if (sd->sd_cpt != cpt2) {
__u32 seq = lnet_get_dlc_seq_locked();
lnet_net_unlock(sd->sd_cpt);
* what was originally set in the target or it will be the NID of
* a router if this message should be routed
*/
- msg->msg_target.nid = msg->msg_txpeer->lpni_nid;
+ /* FIXME handle large-addr nids */
+ msg->msg_target.nid = lnet_nid_to_nid4(&msg->msg_txpeer->lpni_nid);
/*
* lnet_msg_commit assigns the correct cpt to the message, which
* originator and set it here.
*/
if (!msg->msg_routing)
- msg->msg_hdr.src_nid = cpu_to_le64(msg->msg_txni->ni_nid);
+ msg->msg_hdr.src_nid =
+ cpu_to_le64(lnet_nid_to_nid4(&msg->msg_txni->ni_nid));
if (routing) {
msg->msg_target_is_router = 1;
* lnet_select_pathway() function and is never changed.
* It's safe to use it here.
*/
- msg->msg_hdr.dest_nid = cpu_to_le64(final_dst_lpni->lpni_nid);
+ /* FIXME handle large-addr nid */
+ msg->msg_hdr.dest_nid =
+ cpu_to_le64(lnet_nid_to_nid4(&final_dst_lpni->lpni_nid));
} else {
/*
* if we're not routing set the dest_nid to the best peer
* ni NID that we picked earlier in the algorithm.
*/
- msg->msg_hdr.dest_nid = cpu_to_le64(msg->msg_txpeer->lpni_nid);
+ msg->msg_hdr.dest_nid =
+ cpu_to_le64(lnet_nid_to_nid4(&msg->msg_txpeer->lpni_nid));
}
/*
if (msg->msg_md) {
rspt = msg->msg_md->md_rspt_ptr;
if (rspt) {
- rspt->rspt_next_hop_nid = msg->msg_txpeer->lpni_nid;
+ rspt->rspt_next_hop_nid =
+ msg->msg_txpeer->lpni_nid;
CDEBUG(D_NET, "rspt_next_hop_nid = %s\n",
- libcfs_nid2str(rspt->rspt_next_hop_nid));
+ libcfs_nidstr(&rspt->rspt_next_hop_nid));
}
}
if (!rc)
CDEBUG(D_NET, "TRACE: %s(%s:%s) -> %s(%s:%s) %s : %s try# %d\n",
libcfs_nid2str(msg->msg_hdr.src_nid),
- libcfs_nid2str(msg->msg_txni->ni_nid),
+ libcfs_nidstr(&msg->msg_txni->ni_nid),
libcfs_nid2str(sd->sd_src_nid),
libcfs_nid2str(msg->msg_hdr.dest_nid),
libcfs_nid2str(sd->sd_dst_nid),
- libcfs_nid2str(msg->msg_txpeer->lpni_nid),
+ libcfs_nidstr(&msg->msg_txpeer->lpni_nid),
libcfs_nid2str(sd->sd_rtr_nid),
lnet_msgtyp2str(msg->msg_type), msg->msg_retry_count);
if (!lnet_peer_is_multi_rail(lpni->lpni_peer_net->lpn_peer) &&
!lnet_msg_is_response(msg) && lpni->lpni_pref_nnids == 0) {
CDEBUG(D_NET, "Setting preferred local NID %s on NMR peer %s\n",
- libcfs_nid2str(lni->ni_nid),
- libcfs_nid2str(lpni->lpni_nid));
- lnet_peer_ni_set_non_mr_pref_nid(lpni, lni->ni_nid);
+ libcfs_nidstr(&lni->ni_nid),
+ libcfs_nidstr(&lpni->lpni_nid));
+ lnet_peer_ni_set_non_mr_pref_nid(
+ lpni, lnet_nid_to_nid4(&lni->ni_nid));
}
}
}
if (sd->sd_best_lpni &&
- sd->sd_best_lpni->lpni_nid == the_lnet.ln_loni->ni_nid)
+ nid_same(&sd->sd_best_lpni->lpni_nid,
+ &the_lnet.ln_loni->ni_nid))
return lnet_handle_lo_send(sd);
else if (sd->sd_best_lpni)
return lnet_handle_send(sd);
lnet_find_best_ni_on_spec_net(struct lnet_ni *cur_best_ni,
struct lnet_peer *peer,
struct lnet_peer_net *peer_net,
+ struct lnet_msg *msg,
int cpt)
{
struct lnet_net *local_net;
* 3. Round Robin
*/
best_ni = lnet_get_best_ni(local_net, cur_best_ni,
- peer, peer_net, cpt);
+ peer, peer_net, msg, cpt);
return best_ni;
}
return rc;
}
- new_lpni = lnet_find_peer_ni_locked(lpni->lpni_nid);
+ new_lpni = lnet_find_peer_ni_locked(lnet_nid_to_nid4(&lpni->lpni_nid));
if (!new_lpni) {
lnet_peer_ni_decref_locked(lpni);
return -ENOENT;
lnet_peer_ni_decref_locked(new_lpni);
CDEBUG(D_NET, "msg %p delayed. %s pending discovery\n",
- msg, libcfs_nid2str(peer->lp_primary_nid));
+ msg, libcfs_nidstr(&peer->lp_primary_nid));
return LNET_DC_WAIT;
}
struct lnet_peer **gw_peer)
{
int rc;
- __u32 local_lnet;
struct lnet_peer *gw;
struct lnet_peer *lp;
struct lnet_peer_net *lpn;
struct lnet_peer_ni *gwni = NULL;
bool route_found = false;
lnet_nid_t src_nid = (sd->sd_src_nid != LNET_NID_ANY) ? sd->sd_src_nid :
- (sd->sd_best_ni != NULL) ? sd->sd_best_ni->ni_nid :
- LNET_NID_ANY;
+ (sd->sd_best_ni != NULL)
+ ? lnet_nid_to_nid4(&sd->sd_best_ni->ni_nid)
+ : LNET_NID_ANY;
int best_lpn_healthv = 0;
__u32 best_lpn_sel_prio = LNET_MAX_SELECTION_PRIORITY;
if (gwni) {
gw = gwni->lpni_peer_net->lpn_peer;
lnet_peer_ni_decref_locked(gwni);
- if (gw->lp_rtr_refcount) {
- local_lnet = LNET_NIDNET(sd->sd_rtr_nid);
+ if (gw->lp_rtr_refcount)
route_found = true;
- }
} else {
CWARN("No peer NI for gateway %s. Attempting to find an alternative route.\n",
libcfs_nid2str(sd->sd_rtr_nid));
gw = best_route->lr_gateway;
LASSERT(gw == gwni->lpni_peer_net->lpn_peer);
- local_lnet = best_route->lr_lnet;
}
/*
* This means we might delay the message until discovery has
* completed
*/
- sd->sd_msg->msg_src_nid_param = sd->sd_src_nid;
rc = lnet_initiate_peer_discovery(gwni, sd->sd_msg, sd->sd_cpt);
if (rc)
return rc;
- if (!sd->sd_best_ni)
- sd->sd_best_ni = lnet_find_best_ni_on_spec_net(NULL, gw,
- lnet_peer_get_net_locked(gw,
- local_lnet),
- sd->sd_md_cpt);
-
if (!sd->sd_best_ni) {
- CERROR("Internal Error. Expected local ni on %s but non found :%s\n",
- libcfs_net2str(local_lnet),
- libcfs_nid2str(sd->sd_src_nid));
- return -EFAULT;
+ lpn = gwni->lpni_peer_net;
+ sd->sd_best_ni = lnet_find_best_ni_on_spec_net(NULL, gw, lpn,
+ sd->sd_msg,
+ sd->sd_md_cpt);
+ if (!sd->sd_best_ni) {
+ CERROR("Internal Error. Expected local ni on %s but non found: %s\n",
+ libcfs_net2str(lpn->lpn_net_id),
+ libcfs_nid2str(sd->sd_src_nid));
+ return -EFAULT;
+ }
}
*gw_lpni = gwni;
struct lnet_ni *
lnet_find_best_ni_on_local_net(struct lnet_peer *peer, int md_cpt,
- bool discovery)
+ struct lnet_msg *msg, bool discovery)
{
struct lnet_peer_net *lpn = NULL;
struct lnet_peer_net *best_lpn = NULL;
/* Select the best NI on the same net as best_lpn chosen
* above
*/
- best_ni = lnet_find_best_ni_on_spec_net(NULL, peer,
- best_lpn, md_cpt);
+ best_ni = lnet_find_best_ni_on_spec_net(NULL, peer, best_lpn,
+ msg, md_cpt);
}
return best_ni;
best_ni =
lnet_find_best_ni_on_spec_net(NULL, sd->sd_peer,
sd->sd_best_lpni->lpni_peer_net,
+ sd->sd_msg,
sd->sd_md_cpt);
/* If there is no best_ni we don't have a route */
if (!best_ni) {
CERROR("no path to %s from net %s\n",
- libcfs_nid2str(best_lpni->lpni_nid),
+ libcfs_nidstr(&best_lpni->lpni_nid),
libcfs_net2str(best_lpni->lpni_net->net_id));
return -EHOSTUNREACH;
}
sd->sd_best_ni = lnet_find_best_ni_on_spec_net(NULL,
sd->sd_peer,
sd->sd_best_lpni->lpni_peer_net,
+ sd->sd_msg,
sd->sd_md_cpt);
if (!sd->sd_best_ni) {
CERROR("Unable to forward message to %s. No local NI available\n",
sd->sd_best_ni =
lnet_find_best_ni_on_spec_net(NULL, sd->sd_peer,
sd->sd_best_lpni->lpni_peer_net,
+ sd->sd_msg,
sd->sd_md_cpt);
if (!sd->sd_best_ni) {
*/
sd->sd_best_ni = lnet_find_best_ni_on_local_net(sd->sd_peer,
sd->sd_md_cpt,
+ sd->sd_msg,
lnet_msg_discovery(sd->sd_msg));
if (sd->sd_best_ni) {
sd->sd_best_lpni =
* network
*/
if (sd->sd_best_lpni &&
- sd->sd_best_lpni->lpni_nid == the_lnet.ln_loni->ni_nid) {
+ nid_same(&sd->sd_best_lpni->lpni_nid,
+ &the_lnet.ln_loni->ni_nid)) {
/*
* in case we initially started with a routed
* destination, let's reset to local
if (ktime_compare(now, rspt->rspt_deadline) >= 0 ||
the_lnet.ln_mt_state == LNET_MT_STATE_SHUTDOWN) {
struct lnet_peer_ni *lpni;
- lnet_nid_t nid;
+ struct lnet_nid nid;
md = lnet_handle2md(&rspt->rspt_mdh);
if (!md) {
CDEBUG(D_NET,
"Response timeout: md = %p: nid = %s\n",
- md, libcfs_nid2str(nid));
+ md, libcfs_nidstr(&nid));
/*
* If there is a timeout on the response
* value so that we don't use it
*/
lnet_net_lock(0);
- lpni = lnet_find_peer_ni_locked(nid);
+ lpni = lnet_peer_ni_find_locked(&nid);
if (lpni) {
lnet_handle_remote_failure_locked(lpni);
lnet_peer_ni_decref_locked(lpni);
lnet_nid_t nid;
int healthv;
int rc;
+ time64_t now;
/*
* splice the recovery queue on a local queue. We will iterate
&local_queue);
lnet_net_unlock(0);
+ now = ktime_get_seconds();
+
list_for_each_entry_safe(ni, tmp, &local_queue, ni_recovery) {
/*
* if an NI is being deleted or it is now healthy, there
ni->ni_recovery_state &= ~LNET_NI_RECOVERY_FAILED;
}
+
lnet_ni_unlock(ni);
- lnet_net_unlock(0);
+ if (now < ni->ni_next_ping) {
+ lnet_net_unlock(0);
+ continue;
+ }
+
+ lnet_net_unlock(0);
CDEBUG(D_NET, "attempting to recover local ni: %s\n",
- libcfs_nid2str(ni->ni_nid));
+ libcfs_nidstr(&ni->ni_nid));
lnet_ni_lock(ni);
if (!(ni->ni_recovery_state & LNET_NI_RECOVERY_PENDING)) {
LIBCFS_ALLOC(ev_info, sizeof(*ev_info));
if (!ev_info) {
CERROR("out of memory. Can't recover %s\n",
- libcfs_nid2str(ni->ni_nid));
+ libcfs_nidstr(&ni->ni_nid));
lnet_ni_lock(ni);
ni->ni_recovery_state &=
~LNET_NI_RECOVERY_PENDING;
* We'll unlink the mdh in this case below.
*/
LNetInvalidateMDHandle(&ni->ni_ping_mdh);
- nid = ni->ni_nid;
+ /* FIXME need to handle large-addr nid */
+ nid = lnet_nid_to_nid4(&ni->ni_nid);
/*
* remove the NI from the local queue and drop the
LNetMDUnlink(mdh);
continue;
}
- /*
- * Same note as in lnet_recover_peer_nis(). When
- * we're sending the ping, the NI is free to be
- * deleted or manipulated. By this point it
- * could've been added back on the recovery queue,
- * and a refcount taken on it.
- * So we can't just add it blindly again or we'll
- * corrupt the queue. We must check under lock if
- * it's not on any list and if not then add it
- * to the processed list, which will eventually be
- * spliced back on to the recovery queue.
- */
+ ni->ni_ping_count++;
+
ni->ni_ping_mdh = mdh;
- if (list_empty(&ni->ni_recovery)) {
- list_add_tail(&ni->ni_recovery, &processed_list);
- lnet_ni_addref_locked(ni, 0);
- }
- lnet_net_unlock(0);
+ lnet_ni_add_to_recoveryq_locked(ni, &processed_list,
+ now);
- lnet_ni_lock(ni);
- if (rc)
+ if (rc) {
+ lnet_ni_lock(ni);
ni->ni_recovery_state &= ~LNET_NI_RECOVERY_PENDING;
- }
- lnet_ni_unlock(ni);
+ lnet_ni_unlock(ni);
+ }
+ lnet_net_unlock(0);
+ } else
+ lnet_ni_unlock(ni);
}
/*
lnet_nid_t nid;
int healthv;
int rc;
+ time64_t now;
/*
* Always use cpt 0 for locking across all interactions with
&local_queue);
lnet_net_unlock(0);
+ now = ktime_get_seconds();
+
list_for_each_entry_safe(lpni, tmp, &local_queue,
lpni_recovery) {
/*
}
spin_unlock(&lpni->lpni_lock);
+
+ if (now < lpni->lpni_next_ping) {
+ lnet_net_unlock(0);
+ continue;
+ }
+
lnet_net_unlock(0);
/*
LIBCFS_ALLOC(ev_info, sizeof(*ev_info));
if (!ev_info) {
CERROR("out of memory. Can't recover %s\n",
- libcfs_nid2str(lpni->lpni_nid));
+ libcfs_nidstr(&lpni->lpni_nid));
spin_lock(&lpni->lpni_lock);
lpni->lpni_state &= ~LNET_PEER_NI_RECOVERY_PENDING;
spin_unlock(&lpni->lpni_lock);
/* look at the comments in lnet_recover_local_nis() */
mdh = lpni->lpni_recovery_ping_mdh;
LNetInvalidateMDHandle(&lpni->lpni_recovery_ping_mdh);
- nid = lpni->lpni_nid;
+ /* FIXME handle large-addr nid */
+ nid = lnet_nid_to_nid4(&lpni->lpni_nid);
lnet_net_lock(0);
list_del_init(&lpni->lpni_recovery);
lnet_peer_ni_decref_locked(lpni);
continue;
}
+ lpni->lpni_ping_count++;
+
lpni->lpni_recovery_ping_mdh = mdh;
- /*
- * While we're unlocked the lpni could've been
- * readded on the recovery queue. In this case we
- * don't need to add it to the local queue, since
- * it's already on there and the thread that added
- * it would've incremented the refcount on the
- * peer, which means we need to decref the refcount
- * that was implicitly grabbed by find_peer_ni_locked.
- * Otherwise, if the lpni is still not on
- * the recovery queue, then we'll add it to the
- * processed list.
- */
- if (list_empty(&lpni->lpni_recovery))
- list_add_tail(&lpni->lpni_recovery, &processed_list);
- else
- lnet_peer_ni_decref_locked(lpni);
- lnet_net_unlock(0);
- spin_lock(&lpni->lpni_lock);
- if (rc)
+ lnet_peer_ni_add_to_recoveryq_locked(lpni,
+ &processed_list,
+ now);
+ if (rc) {
+ spin_lock(&lpni->lpni_lock);
lpni->lpni_state &= ~LNET_PEER_NI_RECOVERY_PENDING;
- }
- spin_unlock(&lpni->lpni_lock);
+ spin_unlock(&lpni->lpni_lock);
+ }
+
+ /* Drop the ref taken by lnet_find_peer_ni_locked() */
+ lnet_peer_ni_decref_locked(lpni);
+ lnet_net_unlock(0);
+ } else
+ spin_unlock(&lpni->lpni_lock);
}
list_splice_init(&processed_list, &local_queue);
static int
lnet_monitor_thread(void *arg)
{
- time64_t recovery_timeout = 0;
time64_t rsp_timeout = 0;
- int interval;
time64_t now;
wait_for_completion(&the_lnet.ln_started);
rsp_timeout = now + (lnet_transaction_timeout / 2);
}
- if (now >= recovery_timeout) {
- lnet_recover_local_nis();
- lnet_recover_peer_nis();
- recovery_timeout = now + lnet_recovery_interval;
- }
+ lnet_recover_local_nis();
+ lnet_recover_peer_nis();
/*
* TODO do we need to check if we should sleep without
* if we wake up every 1 second? Although, we've seen
* cases where we get a complaint that an idle thread
* is waking up unnecessarily.
- *
- * Take into account the current net_count when you wake
- * up for alive router checking, since we need to check
- * possibly as many networks as we have configured.
*/
- interval = min(lnet_recovery_interval,
- min((unsigned int) alive_router_check_interval /
- lnet_current_net_count,
- lnet_transaction_timeout / 2));
wait_for_completion_interruptible_timeout(
&the_lnet.ln_mt_wait_complete,
- cfs_time_seconds(interval));
+ cfs_time_seconds(1));
/* Must re-init the completion before testing anything,
* including ln_mt_state.
*/
lnet_ni_recv(ni, msg->msg_private, NULL, 0, 0, 0, 0);
msg->msg_receiving = 0;
- rc = lnet_send(ni->ni_nid, msg, msg->msg_from);
+ /* FIXME need to handle large-addr nid */
+ rc = lnet_send(lnet_nid_to_nid4(&ni->ni_nid), msg, msg->msg_from);
if (rc < 0) {
/* didn't get as far as lnet_ni_send() */
CERROR("%s: Unable to send REPLY for GET from %s: %d\n",
- libcfs_nid2str(ni->ni_nid),
+ libcfs_nidstr(&ni->ni_nid),
libcfs_id2str(info.mi_id), rc);
lnet_finalize(msg, rc);
if (md == NULL || md->md_threshold == 0 || md->md_me != NULL) {
CNETERR("%s: Dropping REPLY from %s for %s "
"MD %#llx.%#llx\n",
- libcfs_nid2str(ni->ni_nid), libcfs_id2str(src),
+ libcfs_nidstr(&ni->ni_nid), libcfs_id2str(src),
(md == NULL) ? "invalid" : "inactive",
hdr->msg.reply.dst_wmd.wh_interface_cookie,
hdr->msg.reply.dst_wmd.wh_object_cookie);
(md->md_options & LNET_MD_TRUNCATE) == 0) {
CNETERR("%s: Dropping REPLY from %s length %d "
"for MD %#llx would overflow (%d)\n",
- libcfs_nid2str(ni->ni_nid), libcfs_id2str(src),
+ libcfs_nidstr(&ni->ni_nid), libcfs_id2str(src),
rlength, hdr->msg.reply.dst_wmd.wh_object_cookie,
mlength);
lnet_res_unlock(cpt);
}
CDEBUG(D_NET, "%s: Reply from %s of length %d/%d into md %#llx\n",
- libcfs_nid2str(ni->ni_nid), libcfs_id2str(src),
+ libcfs_nidstr(&ni->ni_nid), libcfs_id2str(src),
mlength, rlength, hdr->msg.reply.dst_wmd.wh_object_cookie);
lnet_msg_attach_md(msg, md, 0, mlength);
/* Don't moan; this is expected */
CDEBUG(D_NET,
"%s: Dropping ACK from %s to %s MD %#llx.%#llx\n",
- libcfs_nid2str(ni->ni_nid), libcfs_id2str(src),
+ libcfs_nidstr(&ni->ni_nid), libcfs_id2str(src),
(md == NULL) ? "invalid" : "inactive",
hdr->msg.ack.dst_wmd.wh_interface_cookie,
hdr->msg.ack.dst_wmd.wh_object_cookie);
}
CDEBUG(D_NET, "%s: ACK from %s into md %#llx\n",
- libcfs_nid2str(ni->ni_nid), libcfs_id2str(src),
+ libcfs_nidstr(&ni->ni_nid), libcfs_id2str(src),
hdr->msg.ack.dst_wmd.wh_object_cookie);
lnet_msg_attach_md(msg, md, 0, 0);
dest_pid = le32_to_cpu(hdr->dest_pid);
payload_length = le32_to_cpu(hdr->payload_length);
- for_me = (ni->ni_nid == dest_nid);
+ /* FIXME handle large-addr nids */
+ for_me = (lnet_nid_to_nid4(&ni->ni_nid) == dest_nid);
cpt = lnet_cpt_of_nid(from_nid, ni);
CDEBUG(D_NET, "TRACE: %s(%s) <- %s : %s - %s\n",
libcfs_nid2str(dest_nid),
- libcfs_nid2str(ni->ni_nid),
+ libcfs_nidstr(&ni->ni_nid),
libcfs_nid2str(src_nid),
lnet_msgtyp2str(type),
(for_me) ? "for me" : "routed");
* or malicious so we chop them off at the knees :) */
if (!for_me) {
- if (LNET_NIDNET(dest_nid) == LNET_NIDNET(ni->ni_nid)) {
+ if (LNET_NIDNET(dest_nid) == LNET_NID_NET(&ni->ni_nid)) {
/* should have gone direct */
CERROR("%s, src %s: Bad dest nid %s "
"(should have been sent direct)\n",
return -EPROTO;
}
- if (lnet_islocalnid(dest_nid)) {
+ if (lnet_islocalnid4(dest_nid)) {
/* dest is another local NI; sender should have used
* this node's NID on its own network */
CERROR("%s, src %s: Bad dest nid %s "
goto drop;
}
+ /* FIXME need to support large-addr nid */
if (!list_empty(&the_lnet.ln_drop_rules) &&
- lnet_drop_rule_match(hdr, ni->ni_nid, NULL)) {
+ lnet_drop_rule_match(hdr, lnet_nid_to_nid4(&ni->ni_nid), NULL)) {
CDEBUG(D_NET,
"%s, src %s, dst %s: Dropping %s to simulate silent message loss\n",
libcfs_nid2str(from_nid), libcfs_nid2str(src_nid),
goto drop;
}
- if (lnet_drop_asym_route && for_me &&
- LNET_NIDNET(src_nid) != LNET_NIDNET(from_nid)) {
- struct lnet_net *net;
- struct lnet_remotenet *rnet;
- bool found = true;
-
- /* we are dealing with a routed message,
- * so see if route to reach src_nid goes through from_nid
- */
- lnet_net_lock(cpt);
- net = lnet_get_net_locked(LNET_NIDNET(ni->ni_nid));
- if (!net) {
- lnet_net_unlock(cpt);
- CERROR("net %s not found\n",
- libcfs_net2str(LNET_NIDNET(ni->ni_nid)));
- return -EPROTO;
- }
-
- rnet = lnet_find_rnet_locked(LNET_NIDNET(src_nid));
- if (rnet) {
- struct lnet_peer *gw = NULL;
- struct lnet_peer_ni *lpni = NULL;
- struct lnet_route *route;
-
- list_for_each_entry(route, &rnet->lrn_routes, lr_list) {
- found = false;
- gw = route->lr_gateway;
- if (route->lr_lnet != net->net_id)
- continue;
- /*
- * if the nid is one of the gateway's NIDs
- * then this is a valid gateway
- */
- while ((lpni = lnet_get_next_peer_ni_locked(gw,
- NULL, lpni)) != NULL) {
- if (lpni->lpni_nid == from_nid) {
- found = true;
- break;
- }
- }
- }
- }
- lnet_net_unlock(cpt);
- if (!found) {
- /* we would not use from_nid to route a message to
- * src_nid
- * => asymmetric routing detected but forbidden
- */
- CERROR("%s, src %s: Dropping asymmetrical route %s\n",
- libcfs_nid2str(from_nid),
- libcfs_nid2str(src_nid), lnet_msgtyp2str(type));
- goto drop;
- }
- }
-
msg = lnet_msg_alloc();
if (msg == NULL) {
CERROR("%s, src %s: Dropping %s (out of memory)\n",
}
lnet_net_lock(cpt);
- lpni = lnet_nid2peerni_locked(from_nid, ni->ni_nid, cpt);
+ /* FIXME support large-addr nid */
+ lpni = lnet_nid2peerni_locked(from_nid, lnet_nid_to_nid4(&ni->ni_nid),
+ cpt);
if (IS_ERR(lpni)) {
lnet_net_unlock(cpt);
- CERROR("%s, src %s: Dropping %s "
- "(error %ld looking up sender)\n",
+ rc = PTR_ERR(lpni);
+ CERROR("%s, src %s: Dropping %s (error %d looking up sender)\n",
libcfs_nid2str(from_nid), libcfs_nid2str(src_nid),
- lnet_msgtyp2str(type), PTR_ERR(lpni));
+ lnet_msgtyp2str(type), rc);
lnet_msg_free(msg);
if (rc == -ESHUTDOWN)
/* We are shutting down. Don't do anything more */
goto drop;
}
- if (the_lnet.ln_routing)
- lpni->lpni_last_alive = ktime_get_seconds();
+ /* If this message was forwarded to us from a router then we may need
+ * to update router aliveness or check for an asymmetrical route
+ * (or both)
+ */
+ if (((lnet_drop_asym_route && for_me) ||
+ !lpni->lpni_peer_net->lpn_peer->lp_alive) &&
+ LNET_NIDNET(src_nid) != LNET_NIDNET(from_nid)) {
+ __u32 src_net_id = LNET_NIDNET(src_nid);
+ struct lnet_peer *gw = lpni->lpni_peer_net->lpn_peer;
+ struct lnet_route *route;
+ bool found = false;
+
+ list_for_each_entry(route, &gw->lp_routes, lr_gwlist) {
+ if (route->lr_net == src_net_id) {
+ found = true;
+ /* If we're transitioning the gateway from
+ * dead -> alive, and discovery is disabled
+ * locally or on the gateway, then we need to
+ * update the cached route aliveness for each
+ * route to the src_nid's net.
+ *
+ * Otherwise, we're only checking for
+ * symmetrical route, and we can break the
+ * loop
+ */
+ if (!gw->lp_alive &&
+ lnet_is_discovery_disabled(gw))
+ lnet_set_route_aliveness(route, true);
+ else
+ break;
+ }
+ }
+ if (lnet_drop_asym_route && for_me && !found) {
+ lnet_net_unlock(cpt);
+ /* we would not use from_nid to route a message to
+ * src_nid
+ * => asymmetric routing detected but forbidden
+ */
+ CERROR("%s, src %s: Dropping asymmetrical route %s\n",
+ libcfs_nid2str(from_nid),
+ libcfs_nid2str(src_nid), lnet_msgtyp2str(type));
+ lnet_msg_free(msg);
+ goto drop;
+ }
+ if (!gw->lp_alive) {
+ struct lnet_peer_net *lpn;
+ struct lnet_peer_ni *lpni2;
+
+ gw->lp_alive = true;
+ /* Mark all remote NIs on src_nid's net UP */
+ lpn = lnet_peer_get_net_locked(gw, src_net_id);
+ if (lpn)
+ list_for_each_entry(lpni2, &lpn->lpn_peer_nis,
+ lpni_peer_nis)
+ lpni2->lpni_ns_status = LNET_NI_STATUS_UP;
+ }
+ }
+
+ lpni->lpni_last_alive = ktime_get_seconds();
msg->msg_rxpeer = lpni;
msg->msg_rxni = ni;
if (msg == NULL) {
CERROR("%s: Dropping REPLY from %s: can't allocate msg\n",
- libcfs_nid2str(ni->ni_nid), libcfs_id2str(peer_id));
+ libcfs_nidstr(&ni->ni_nid), libcfs_id2str(peer_id));
goto drop;
}
if (getmd->md_threshold == 0) {
CERROR("%s: Dropping REPLY from %s for inactive MD %p\n",
- libcfs_nid2str(ni->ni_nid), libcfs_id2str(peer_id),
+ libcfs_nidstr(&ni->ni_nid), libcfs_id2str(peer_id),
getmd);
lnet_res_unlock(cpt);
goto drop;
LASSERT(getmd->md_offset == 0);
CDEBUG(D_NET, "%s: Reply from %s md %p\n",
- libcfs_nid2str(ni->ni_nid), libcfs_id2str(peer_id), getmd);
+ libcfs_nidstr(&ni->ni_nid), libcfs_id2str(peer_id), getmd);
/* setup information for lnet_build_msg_event */
- msg->msg_initiator = getmsg->msg_txpeer->lpni_peer_net->lpn_peer->lp_primary_nid;
+ msg->msg_initiator =
+ lnet_nid_to_nid4(&getmsg->msg_txpeer->lpni_peer_net->lpn_peer->lp_primary_nid);
msg->msg_from = peer_id.nid;
msg->msg_type = LNET_MSG_GET; /* flag this msg as an "optimized" GET */
msg->msg_hdr.src_nid = peer_id.nid;
int cpt;
__u32 order = 2;
struct list_head *rn_list;
+ bool matched_dstnet = false;
/* if !local_nid_dist_zero, I don't return a distance of 0 ever
* (when lustre sees a distance of 0, it substitutes 0@lo), so I
cpt = lnet_net_lock_current();
while ((ni = lnet_get_next_ni_locked(NULL, ni))) {
- if (ni->ni_nid == dstnid) {
+ /* FIXME support large-addr nid */
+ if (lnet_nid_to_nid4(&ni->ni_nid) == dstnid) {
if (srcnidp != NULL)
*srcnidp = dstnid;
if (orderp != NULL) {
return local_nid_dist_zero ? 0 : 1;
}
- if (LNET_NIDNET(ni->ni_nid) == dstnet) {
- /* Check if ni was originally created in
- * current net namespace.
- * If not, assign order above 0xffff0000,
- * to make this ni not a priority. */
- if (current->nsproxy &&
- !net_eq(ni->ni_net_ns, current->nsproxy->net_ns))
- order += 0xffff0000;
- if (srcnidp != NULL)
- *srcnidp = ni->ni_nid;
- if (orderp != NULL)
- *orderp = order;
- lnet_net_unlock(cpt);
- return 1;
+ if (!matched_dstnet && LNET_NID_NET(&ni->ni_nid) == dstnet) {
+ matched_dstnet = true;
+ /* We matched the destination net, but we may have
+ * additional local NIs to inspect.
+ *
+ * We record the nid and order as appropriate, but
+ * they may be overwritten if we match local NI above.
+ */
+ if (srcnidp)
+ /* FIXME support large-addr nids */
+ *srcnidp = lnet_nid_to_nid4(&ni->ni_nid);
+
+ if (orderp) {
+ /* Check if ni was originally created in
+ * current net namespace.
+ * If not, assign order above 0xffff0000,
+ * to make this ni not a priority.
+ */
+ if (current->nsproxy &&
+ !net_eq(ni->ni_net_ns,
+ current->nsproxy->net_ns))
+ *orderp = order + 0xffff0000;
+ else
+ *orderp = order;
+ }
}
order++;
}
+ if (matched_dstnet) {
+ lnet_net_unlock(cpt);
+ return 1;
+ }
+
rn_list = lnet_net2rnethash(dstnet);
list_for_each(e, rn_list) {
rnet = list_entry(e, struct lnet_remotenet, lrn_list);
net = lnet_get_net_locked(shortest->lr_lnet);
LASSERT(net);
ni = lnet_get_next_ni_locked(net, NULL);
- *srcnidp = ni->ni_nid;
+ /* FIXME support large-addr nids */
+ *srcnidp = lnet_nid_to_nid4(&ni->ni_nid);
}
if (orderp != NULL)
*orderp = order;