-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
*
- * Copyright (C) 2004 Cluster File Systems, Inc.
- * Author: Eric Barton <eric@bartonsoftware.com>
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * This file is part of Lustre, http://www.lustre.org.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
*
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
*
- * Lustre is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
*
+ * GPL HEADER END
*/
-#include "ranal.h"
-
-
-nal_t kranal_api;
-ptl_handle_ni_t kranal_ni;
-kra_data_t kranal_data;
-kra_tunables_t kranal_tunables;
-
-#ifdef CONFIG_SYSCTL
-#define RANAL_SYSCTL_TIMEOUT 1
-#define RANAL_SYSCTL_LISTENER_TIMEOUT 2
-#define RANAL_SYSCTL_BACKLOG 3
-#define RANAL_SYSCTL_PORT 4
-#define RANAL_SYSCTL_MAX_IMMEDIATE 5
-
-#define RANAL_SYSCTL 202
-
-static ctl_table kranal_ctl_table[] = {
- {RANAL_SYSCTL_TIMEOUT, "timeout",
- &kranal_tunables.kra_timeout, sizeof(int),
- 0644, NULL, &proc_dointvec},
- {RANAL_SYSCTL_LISTENER_TIMEOUT, "listener_timeout",
- &kranal_tunables.kra_listener_timeout, sizeof(int),
- 0644, NULL, &proc_dointvec},
- {RANAL_SYSCTL_BACKLOG, "backlog",
- &kranal_tunables.kra_backlog, sizeof(int),
- 0644, NULL, kranal_listener_procint},
- {RANAL_SYSCTL_PORT, "port",
- &kranal_tunables.kra_port, sizeof(int),
- 0644, NULL, kranal_listener_procint},
- {RANAL_SYSCTL_MAX_IMMEDIATE, "max_immediate",
- &kranal_tunables.kra_max_immediate, sizeof(int),
- 0644, NULL, &proc_dointvec},
- { 0 }
+/*
+ * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2012, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lnet/klnds/ralnd/ralnd.c
+ *
+ * Author: Eric Barton <eric@bartonsoftware.com>
+ */
+#include "ralnd.h"
+
+static int kranal_devids[RANAL_MAXDEVS] = {RAPK_MAIN_DEVICE_ID,
+ RAPK_EXPANSION_DEVICE_ID};
+
+lnd_t the_kralnd = {
+ .lnd_type = RALND,
+ .lnd_startup = kranal_startup,
+ .lnd_shutdown = kranal_shutdown,
+ .lnd_ctl = kranal_ctl,
+ .lnd_send = kranal_send,
+ .lnd_recv = kranal_recv,
+ .lnd_eager_recv = kranal_eager_recv,
+ .lnd_accept = kranal_accept,
};
-static ctl_table kranal_top_ctl_table[] = {
- {RANAL_SYSCTL, "ranal", NULL, 0, 0555, kranal_ctl_table},
- { 0 }
-};
-#endif
+kra_data_t kranal_data;
-int
-kranal_sock_write (struct socket *sock, void *buffer, int nob)
+void
+kranal_pack_connreq(kra_connreq_t *connreq, kra_conn_t *conn, lnet_nid_t dstnid)
{
- int rc;
- mm_segment_t oldmm = get_fs();
- struct iovec iov = {
- .iov_base = buffer,
- .iov_len = nob
- };
- struct msghdr msg = {
- .msg_name = NULL,
- .msg_namelen = 0,
- .msg_iov = &iov,
- .msg_iovlen = 1,
- .msg_control = NULL,
- .msg_controllen = 0,
- .msg_flags = MSG_DONTWAIT
- };
-
- /* We've set up the socket's send buffer to be large enough for
- * everything we send, so a single non-blocking send should
- * complete without error. */
-
- set_fs(KERNEL_DS);
- rc = sock_sendmsg(sock, &msg, iov.iov_len);
- set_fs(oldmm);
-
- return rc;
-}
+ RAP_RETURN rrc;
-int
-kranal_sock_read (struct socket *sock, void *buffer, int nob, int timeout)
-{
- int rc;
- mm_segment_t oldmm = get_fs();
- long ticks = timeout * HZ;
- unsigned long then;
- struct timeval tv;
-
- LASSERT (nob > 0);
- LASSERT (ticks > 0);
-
- for (;;) {
- struct iovec iov = {
- .iov_base = buffer,
- .iov_len = nob
- };
- struct msghdr msg = {
- .msg_name = NULL,
- .msg_namelen = 0,
- .msg_iov = &iov,
- .msg_iovlen = 1,
- .msg_control = NULL,
- .msg_controllen = 0,
- .msg_flags = 0
- };
-
- /* Set receive timeout to remaining time */
- tv = (struct timeval) {
- .tv_sec = ticks / HZ,
- .tv_usec = ((ticks % HZ) * 1000000) / HZ;
- };
- set_fs(KERNEL_DS);
- rc = sock_setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO,
- (char *)&tv, sizeof(tv));
- set_fs(oldmm);
- if (rc != 0) {
- CERROR("Can't set socket recv timeout %d: %d\n",
- send_timeout, rc);
- return rc;
- }
-
- set_fs(KERNEL_DS);
- then = jiffies;
- rc = sock_recvmsg(sock, &msg, iov.iov_len, 0);
- ticks -= jiffies - then;
- set_fs(oldmm);
-
- if (rc < 0)
- return rc;
+ memset(connreq, 0, sizeof(*connreq));
- if (rc == 0)
- return -ECONNABORTED;
+ connreq->racr_magic = RANAL_MSG_MAGIC;
+ connreq->racr_version = RANAL_MSG_VERSION;
- buffer = ((char *)buffer) + rc;
- nob -= rc;
+ if (conn == NULL) /* prepping a "stub" reply */
+ return;
- if (nob == 0)
- return 0;
+ connreq->racr_devid = conn->rac_device->rad_id;
+ connreq->racr_srcnid = kranal_data.kra_ni->ni_nid;
+ connreq->racr_dstnid = dstnid;
+ connreq->racr_peerstamp = kranal_data.kra_peerstamp;
+ connreq->racr_connstamp = conn->rac_my_connstamp;
+ connreq->racr_timeout = conn->rac_timeout;
- if (ticks <= 0)
- return -ETIMEDOUT;
- }
+ rrc = RapkGetRiParams(conn->rac_rihandle, &connreq->racr_riparams);
+ LASSERT(rrc == RAP_SUCCESS);
}
int
-kranal_create_sock(struct socket **sockp)
+kranal_recv_connreq(struct socket *sock, kra_connreq_t *connreq, int active)
{
- struct socket *sock;
- int rc;
- struct timeval tv;
- int option;
- mm_segment_t oldmm = get_fs();
-
- rc = sock_create(PF_INET, SOCK_STREAM, 0, &sock);
- if (rc != 0) {
- CERROR("Can't create socket: %d\n", rc);
- return rc;
- }
-
- /* Ensure sending connection info doesn't block */
- option = 2 * sizeof(kra_connreq_t);
- set_fs(KERNEL_DS);
- rc = sock_setsockopt(sock, SOL_SOCKET, SO_SNDBUF,
- (char *)&option, sizeof(option));
- set_fs(oldmm);
- if (rc != 0) {
- CERROR("Can't set send buffer %d: %d\n", option, rc);
- goto failed;
- }
-
- option = 1;
- set_fs(KERNEL_DS);
- rc = sock_setsockopt(sock, SOL_SOCKET, SO_REUSEADDR,
- (char *)&option, sizeof(option));
- set_fs(oldmm);
- if (rc != 0) {
- CERROR("Can't set SO_REUSEADDR: %d\n", rc);
- goto failed;
- }
+ int timeout = active ? *kranal_tunables.kra_timeout :
+ lnet_acceptor_timeout();
+ int swab;
+ int rc;
- *sockp = sock;
- return 0;
+ /* return 0 on success, -ve on error, +ve to tell the peer I'm "old" */
- failed:
- sock_release(sock);
- return rc;
-}
-
-void
-kranal_pause(int ticks)
-{
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(ticks);
-}
+ rc = libcfs_sock_read(sock, &connreq->racr_magic,
+ sizeof(connreq->racr_magic), timeout);
+ if (rc != 0) {
+ CERROR("Read(magic) failed(1): %d\n", rc);
+ return -EIO;
+ }
-void
-kranal_pack_connreq(kra_connreq_t *connreq, kra_conn_t *conn)
-{
- memset(connreq, 0, sizeof(*connreq));
+ if (connreq->racr_magic != RANAL_MSG_MAGIC &&
+ connreq->racr_magic != __swab32(RANAL_MSG_MAGIC)) {
+ /* Unexpected magic! */
+ if (!active &&
+ (connreq->racr_magic == LNET_PROTO_MAGIC ||
+ connreq->racr_magic == __swab32(LNET_PROTO_MAGIC))) {
+ /* future protocol version compatibility!
+ * When LNET unifies protocols over all LNDs, the first
+ * thing sent will be a version query. +ve rc means I
+ * reply with my current magic/version */
+ return EPROTO;
+ }
- connreq->racr_magic = RANAL_MSG_MAGIC;
- connreq->racr_version = RANAL_MSG_VERSION;
- connreq->racr_devid = conn->rac_device->rad_id;
- connreq->racr_nid = kranal_lib.libnal_ni.ni_pid.nid;
- connreq->racr_timeout = conn->rac_timeout;
- connreq->racr_incarnation = conn->rac_my_incarnation;
+ CERROR("Unexpected magic %08x (%s)\n",
+ connreq->racr_magic, active ? "active" : "passive");
+ return -EPROTO;
+ }
- rrc = RapkGetRiParams(conn->rac_rihandle, &connreq->racr_riparams);
- LASSERT(rrc == RAP_SUCCESS);
-}
+ swab = (connreq->racr_magic == __swab32(RANAL_MSG_MAGIC));
-int
-kranal_recv_connreq(struct sock *sock, kra_connreq_t *connreq, int timeout)
-{
- int i;
- int rc;
+ rc = libcfs_sock_read(sock, &connreq->racr_version,
+ sizeof(connreq->racr_version), timeout);
+ if (rc != 0) {
+ CERROR("Read(version) failed: %d\n", rc);
+ return -EIO;
+ }
- rc = kranal_sock_read(newsock, connreq, sizeof(*connreq), timeout);
- if (rc != 0) {
- CERROR("Read failed: %d\n", rc);
- return rc;
- }
+ if (swab)
+ __swab16s(&connreq->racr_version);
+
+ if (connreq->racr_version != RANAL_MSG_VERSION) {
+ if (active) {
+ CERROR("Unexpected version %d\n", connreq->racr_version);
+ return -EPROTO;
+ }
+ /* If this is a future version of the ralnd protocol, and I'm
+ * passive (accepted the connection), tell my peer I'm "old"
+ * (+ve rc) */
+ return EPROTO;
+ }
- if (connreq->racr_magic != RANAL_MSG_MAGIC) {
- if (__swab32(connreq->racr_magic) != RANAL_MSG_MAGIC) {
- CERROR("Unexpected magic %08x\n", connreq->racr_magic);
- return -EPROTO;
- }
+ rc = libcfs_sock_read(sock, &connreq->racr_devid,
+ sizeof(connreq->racr_version) -
+ offsetof(kra_connreq_t, racr_devid),
+ timeout);
+ if (rc != 0) {
+ CERROR("Read(body) failed: %d\n", rc);
+ return -EIO;
+ }
- __swab32s(&connreq->racr_magic);
- __swab16s(&connreq->racr_version);
+ if (swab) {
+ __swab32s(&connreq->racr_magic);
+ __swab16s(&connreq->racr_version);
__swab16s(&connreq->racr_devid);
- __swab64s(&connreq->racr_nid);
- __swab64s(&connreq->racr_incarnation);
+ __swab64s(&connreq->racr_srcnid);
+ __swab64s(&connreq->racr_dstnid);
+ __swab64s(&connreq->racr_peerstamp);
+ __swab64s(&connreq->racr_connstamp);
__swab32s(&connreq->racr_timeout);
- __swab32s(&connreq->racr_riparams.FmaDomainHndl);
- __swab32s(&connreq->racr_riparams.RcvCqHndl);
- __swab32s(&connreq->racr_riparams.PTag);
+ __swab32s(&connreq->racr_riparams.HostId);
+ __swab32s(&connreq->racr_riparams.FmaDomainHndl);
+ __swab32s(&connreq->racr_riparams.PTag);
__swab32s(&connreq->racr_riparams.CompletionCookie);
- }
-
- if (connreq->racr_version != RANAL_MSG_VERSION) {
- CERROR("Unexpected version %d\n", connreq->racr_version);
- return -EPROTO;
- }
+ }
- if (connreq->racr_nid == PTL_NID_ANY) {
- CERROR("Received PTL_NID_ANY\n");
+ if (connreq->racr_srcnid == LNET_NID_ANY ||
+ connreq->racr_dstnid == LNET_NID_ANY) {
+ CERROR("Received LNET_NID_ANY\n");
return -EPROTO;
}
connreq->racr_timeout, RANAL_MIN_TIMEOUT);
return -EPROTO;
}
-
- for (i = 0; i < kranal_data.kra_ndevs; i++)
- if (connreq->racr_devid ==
- kranal_data.kra_devices[i]->rad_id)
- break;
- if (i == kranal_data.kra_ndevs) {
- CERROR("Can't match device %d\n", connreq->racr_devid);
- return -ENODEV;
+ return 0;
+}
+
+int
+kranal_close_stale_conns_locked (kra_peer_t *peer, kra_conn_t *newconn)
+{
+ kra_conn_t *conn;
+ cfs_list_t *ctmp;
+ cfs_list_t *cnxt;
+ int loopback;
+ int count = 0;
+
+ loopback = peer->rap_nid == kranal_data.kra_ni->ni_nid;
+
+ cfs_list_for_each_safe (ctmp, cnxt, &peer->rap_conns) {
+ conn = cfs_list_entry(ctmp, kra_conn_t, rac_list);
+
+ if (conn == newconn)
+ continue;
+
+ if (conn->rac_peerstamp != newconn->rac_peerstamp) {
+ CDEBUG(D_NET, "Closing stale conn nid: %s "
+ " peerstamp:"LPX64"("LPX64")\n",
+ libcfs_nid2str(peer->rap_nid),
+ conn->rac_peerstamp, newconn->rac_peerstamp);
+ LASSERT (conn->rac_peerstamp < newconn->rac_peerstamp);
+ count++;
+ kranal_close_conn_locked(conn, -ESTALE);
+ continue;
+ }
+
+ if (conn->rac_device != newconn->rac_device)
+ continue;
+
+ if (loopback &&
+ newconn->rac_my_connstamp == conn->rac_peer_connstamp &&
+ newconn->rac_peer_connstamp == conn->rac_my_connstamp)
+ continue;
+
+ LASSERT (conn->rac_peer_connstamp < newconn->rac_peer_connstamp);
+
+ CDEBUG(D_NET, "Closing stale conn nid: %s"
+ " connstamp:"LPX64"("LPX64")\n",
+ libcfs_nid2str(peer->rap_nid),
+ conn->rac_peer_connstamp, newconn->rac_peer_connstamp);
+
+ count++;
+ kranal_close_conn_locked(conn, -ESTALE);
}
- return 0;
+ return count;
}
int
-kranal_conn_isdup_locked(kranal_peer_t *peer, __u64 incarnation)
+kranal_conn_isdup_locked(kra_peer_t *peer, kra_conn_t *newconn)
{
- kra_conn_t *conn;
- struct list_head *tmp;
- int loopback = 0;
+ kra_conn_t *conn;
+ cfs_list_t *tmp;
+ int loopback;
- list_for_each(tmp, &peer->rap_conns) {
- conn = list_entry(tmp, kra_conn_t, rac_list);
+ loopback = peer->rap_nid == kranal_data.kra_ni->ni_nid;
- if (conn->rac_incarnation < incarnation) {
- /* Conns with an older incarnation get culled later */
+ cfs_list_for_each(tmp, &peer->rap_conns) {
+ conn = cfs_list_entry(tmp, kra_conn_t, rac_list);
+
+ /* 'newconn' is from an earlier version of 'peer'!!! */
+ if (newconn->rac_peerstamp < conn->rac_peerstamp)
+ return 1;
+
+ /* 'conn' is from an earlier version of 'peer': it will be
+ * removed when we cull stale conns later on... */
+ if (newconn->rac_peerstamp > conn->rac_peerstamp)
continue;
- }
- if (!loopback &&
- conn->rac_incarnation == incarnation &&
- peer->rap_nid == kranal_lib.libnal_ni.ni_pid.nid) {
- /* loopback creates 2 conns */
- loopback = 1;
+ /* Different devices are OK */
+ if (conn->rac_device != newconn->rac_device)
continue;
- }
- return 1;
- }
+ /* It's me connecting to myself */
+ if (loopback &&
+ newconn->rac_my_connstamp == conn->rac_peer_connstamp &&
+ newconn->rac_peer_connstamp == conn->rac_my_connstamp)
+ continue;
- return 0;
+ /* 'newconn' is an earlier connection from 'peer'!!! */
+ if (newconn->rac_peer_connstamp < conn->rac_peer_connstamp)
+ return 2;
+
+ /* 'conn' is an earlier connection from 'peer': it will be
+ * removed when we cull stale conns later on... */
+ if (newconn->rac_peer_connstamp > conn->rac_peer_connstamp)
+ continue;
+
+ /* 'newconn' has the SAME connection stamp; 'peer' isn't
+ * playing the game... */
+ return 3;
+ }
+
+ return 0;
}
void
{
unsigned long flags;
- write_lock_irqsave(&kranal_data.kra_global_lock, flags);
+ write_lock_irqsave(&kranal_data.kra_global_lock, flags);
- conn->rac_my_incarnation = kranal_data.kra_next_incarnation++;
+ conn->rac_my_connstamp = kranal_data.kra_connstamp++;
do { /* allocate a unique cqid */
conn->rac_cqid = kranal_data.kra_next_cqid++;
- } while (kranal_cqid2conn_locked(conn->rac_cqid) != NULL)
-
+ } while (kranal_cqid2conn_locked(conn->rac_cqid) != NULL);
- write_unlock_irqrestore(&kranal_data.kra_global_lock, flags);
+ write_unlock_irqrestore(&kranal_data.kra_global_lock, flags);
}
int
-kranal_alloc_conn(kra_conn_t **connp, kra_device_t *dev)
+kranal_create_conn(kra_conn_t **connp, kra_device_t *dev)
{
- kra_conn_t *conn;
+ kra_conn_t *conn;
RAP_RETURN rrc;
- LASSERT (!in_interrupt());
- PORTAL_ALLOC(conn, sizeof(*conn));
+ LASSERT (!cfs_in_interrupt());
+ LIBCFS_ALLOC(conn, sizeof(*conn));
- if (conn == NULL)
- return -ENOMEM;
+ if (conn == NULL)
+ return -ENOMEM;
- memset(conn, 0, sizeof(*conn));
- conn->rac_cqid = cqid;
- atomic_set(&conn->rac_refcount, 1);
- INIT_LIST_HEAD(&conn->rac_list);
- INIT_LIST_HEAD(&conn->rac_hashlist);
- INIT_LIST_HEAD(&conn->rac_fmaq);
- INIT_LIST_HEAD(&conn->rac_rdmaq);
- INIT_LIST_HEAD(&conn->rac_replyq);
+ memset(conn, 0, sizeof(*conn));
+ cfs_atomic_set(&conn->rac_refcount, 1);
+ CFS_INIT_LIST_HEAD(&conn->rac_list);
+ CFS_INIT_LIST_HEAD(&conn->rac_hashlist);
+ CFS_INIT_LIST_HEAD(&conn->rac_schedlist);
+ CFS_INIT_LIST_HEAD(&conn->rac_fmaq);
+ CFS_INIT_LIST_HEAD(&conn->rac_rdmaq);
+ CFS_INIT_LIST_HEAD(&conn->rac_replyq);
spin_lock_init(&conn->rac_lock);
- conn->rac_timeout = MAX(kranal_tunables.kra_timeout, RANAL_MIN_TIMEOUT);
+ kranal_set_conn_uniqueness(conn);
+
+ conn->rac_device = dev;
+ conn->rac_timeout = MAX(*kranal_tunables.kra_timeout, RANAL_MIN_TIMEOUT);
kranal_update_reaper_timeout(conn->rac_timeout);
- rrc = RapkCreateRi(dev->rad_handle, cqid, dev->rad_ptag,
- dev->rad_rdma_cq, dev->rad_fma_cq,
+ rrc = RapkCreateRi(dev->rad_handle, conn->rac_cqid,
&conn->rac_rihandle);
if (rrc != RAP_SUCCESS) {
CERROR("RapkCreateRi failed: %d\n", rrc);
- PORTAL_FREE(conn, sizeof(*conn));
+ LIBCFS_FREE(conn, sizeof(*conn));
return -ENETDOWN;
}
- atomic_inc(&kranal_data.kra_nconns);
- *connp = conn;
- return 0;
+ cfs_atomic_inc(&kranal_data.kra_nconns);
+ *connp = conn;
+ return 0;
}
void
-__kranal_conn_decref(kra_conn_t *conn)
+kranal_destroy_conn(kra_conn_t *conn)
{
- kra_tx_t *tx;
RAP_RETURN rrc;
- LASSERT (!in_interrupt());
+ LASSERT (!cfs_in_interrupt());
LASSERT (!conn->rac_scheduled);
- LASSERT (list_empty(&conn->rac_list));
- LASSERT (list_empty(&conn->rac_hashlist));
- LASSERT (atomic_read(&conn->rac_refcount) == 0);
+ LASSERT (cfs_list_empty(&conn->rac_list));
+ LASSERT (cfs_list_empty(&conn->rac_hashlist));
+ LASSERT (cfs_list_empty(&conn->rac_schedlist));
+ LASSERT (cfs_atomic_read(&conn->rac_refcount) == 0);
+ LASSERT (cfs_list_empty(&conn->rac_fmaq));
+ LASSERT (cfs_list_empty(&conn->rac_rdmaq));
+ LASSERT (cfs_list_empty(&conn->rac_replyq));
- while (!list_empty(&conn->rac_fmaq)) {
- tx = list_entry(conn->rac_fmaq.next, kra_tx_t, tx_list);
-
- list_del(&tx->tx_list);
- kranal_tx_done(tx, -ECONNABORTED);
- }
-
- /* We may not destroy this connection while it has RDMAs outstanding */
- LASSERT (list_empty(&conn->rac_rdmaq));
-
- while (!list_empty(&conn->rac_replyq)) {
- tx = list_entry(conn->rac_replyq.next, kra_tx_t, tx_list);
-
- list_del(&tx->tx_list);
- kranal_tx_done(tx, -ECONNABORTED);
- }
-
rrc = RapkDestroyRi(conn->rac_device->rad_handle,
conn->rac_rihandle);
LASSERT (rrc == RAP_SUCCESS);
if (conn->rac_peer != NULL)
kranal_peer_decref(conn->rac_peer);
- PORTAL_FREE(conn, sizeof(*conn));
- atomic_dec(&kranal_data.kra_nconns);
+ LIBCFS_FREE(conn, sizeof(*conn));
+ cfs_atomic_dec(&kranal_data.kra_nconns);
}
void
kranal_terminate_conn_locked (kra_conn_t *conn)
{
- kra_peer_t *peer - conn->rac_peer;
-
- LASSERT (!in_interrupt());
- LASSERT (conn->rac_closing);
- LASSERT (!list_empty(&conn->rac_hashlist));
- LASSERT (list_empty(&conn->rac_list));
+ LASSERT (!cfs_in_interrupt());
+ LASSERT (conn->rac_state == RANAL_CONN_CLOSING);
+ LASSERT (!cfs_list_empty(&conn->rac_hashlist));
+ LASSERT (cfs_list_empty(&conn->rac_list));
- /* Remove from conn hash table (no new callbacks) */
- list_del_init(&conn->rac_hashlist);
+ /* Remove from conn hash table: no new callbacks */
+ cfs_list_del_init(&conn->rac_hashlist);
kranal_conn_decref(conn);
- /* Conn is now just waiting for remaining refs to go */
+ conn->rac_state = RANAL_CONN_CLOSED;
+
+ /* schedule to clear out all uncompleted comms in context of dev's
+ * scheduler */
+ kranal_schedule_conn(conn);
}
void
{
kra_peer_t *peer = conn->rac_peer;
- CDEBUG(error == 0 ? D_NET : D_ERROR,
- "closing conn to "LPX64": error %d\n", peer->rap_nid, error);
+ CDEBUG_LIMIT(error == 0 ? D_NET : D_NETERROR,
+ "closing conn to %s: error %d\n",
+ libcfs_nid2str(peer->rap_nid), error);
- LASSERT (!in_interrupt());
- LASSERT (!conn->rac_closing);
- LASSERT (!list_empty(&conn->rac_hashlist));
- LASSERT (!list_empty(&conn->rac_list));
+ LASSERT (!cfs_in_interrupt());
+ LASSERT (conn->rac_state == RANAL_CONN_ESTABLISHED);
+ LASSERT (!cfs_list_empty(&conn->rac_hashlist));
+ LASSERT (!cfs_list_empty(&conn->rac_list));
- list_del_init(&conn->rac_list);
+ cfs_list_del_init(&conn->rac_list);
- if (list_empty(&peer->rap_conns) &&
+ if (cfs_list_empty(&peer->rap_conns) &&
peer->rap_persistence == 0) {
/* Non-persistent peer with no more conns... */
kranal_unlink_peer_locked(peer);
}
- conn->rac_closing = 1;
- kranal_schedule_conn(conn);
+ /* Reset RX timeout to ensure we wait for an incoming CLOSE for the
+ * full timeout. If we get a CLOSE we know the peer has stopped all
+ * RDMA. Otherwise if we wait for the full timeout we can also be sure
+ * all RDMA has stopped. */
+ conn->rac_last_rx = jiffies;
+ cfs_mb();
+
+ conn->rac_state = RANAL_CONN_CLOSING;
+ kranal_schedule_conn(conn); /* schedule sending CLOSE */
kranal_conn_decref(conn); /* lose peer's ref */
}
kranal_close_conn (kra_conn_t *conn, int error)
{
unsigned long flags;
-
- write_lock_irqsave(&kranal_data.kra_global_lock, flags);
-
- if (!conn->rac_closing)
+
+ write_lock_irqsave(&kranal_data.kra_global_lock, flags);
+
+ if (conn->rac_state == RANAL_CONN_ESTABLISHED)
kranal_close_conn_locked(conn, error);
-
- write_unlock_irqrestore(&kranal_data.kra_global_lock, flags);
+
+ write_unlock_irqrestore(&kranal_data.kra_global_lock, flags);
+}
+
+int
+kranal_set_conn_params(kra_conn_t *conn, kra_connreq_t *connreq,
+ __u32 peer_ip, int peer_port)
+{
+ kra_device_t *dev = conn->rac_device;
+ unsigned long flags;
+ RAP_RETURN rrc;
+
+ /* CAVEAT EMPTOR: we're really overloading rac_last_tx + rac_keepalive
+ * to do RapkCompleteSync() timekeeping (see kibnal_scheduler). */
+ conn->rac_last_tx = jiffies;
+ conn->rac_keepalive = 0;
+
+ rrc = RapkSetRiParams(conn->rac_rihandle, &connreq->racr_riparams);
+ if (rrc != RAP_SUCCESS) {
+ CERROR("Error setting riparams from %u.%u.%u.%u/%d: %d\n",
+ HIPQUAD(peer_ip), peer_port, rrc);
+ return -ECONNABORTED;
+ }
+
+ /* Schedule conn on rad_new_conns */
+ kranal_conn_addref(conn);
+ spin_lock_irqsave(&dev->rad_lock, flags);
+ cfs_list_add_tail(&conn->rac_schedlist, &dev->rad_new_conns);
+ wake_up(&dev->rad_waitq);
+ spin_unlock_irqrestore(&dev->rad_lock, flags);
+
+ rrc = RapkWaitToConnect(conn->rac_rihandle);
+ if (rrc != RAP_SUCCESS) {
+ CERROR("Error waiting to connect to %u.%u.%u.%u/%d: %d\n",
+ HIPQUAD(peer_ip), peer_port, rrc);
+ return -ECONNABORTED;
+ }
+
+ /* Scheduler doesn't touch conn apart from to deschedule and decref it
+ * after RapkCompleteSync() return success, so conn is all mine */
+
+ conn->rac_peerstamp = connreq->racr_peerstamp;
+ conn->rac_peer_connstamp = connreq->racr_connstamp;
+ conn->rac_keepalive = RANAL_TIMEOUT2KEEPALIVE(connreq->racr_timeout);
+ kranal_update_reaper_timeout(conn->rac_keepalive);
+ return 0;
}
int
-kranal_passive_conn_handshake (struct socket *sock,
- ptl_nid_t **peer_nidp, kra_conn_t **connp)
+kranal_passive_conn_handshake (struct socket *sock, lnet_nid_t *src_nidp,
+ lnet_nid_t *dst_nidp, kra_conn_t **connp)
{
- struct sockaddr_in addr;
- __u32 peer_ip;
+ __u32 peer_ip;
unsigned int peer_port;
- kra_connreq_t connreq;
- ptl_nid_t peer_nid;
+ kra_connreq_t rx_connreq;
+ kra_connreq_t tx_connreq;
kra_conn_t *conn;
kra_device_t *dev;
- RAP_RETURN rrc;
- int rc;
+ int rc;
int i;
- rc = sock->ops->getname(newsock, (struct sockaddr *)addr, &len, 2);
+ rc = libcfs_sock_getaddr(sock, 1, &peer_ip, &peer_port);
if (rc != 0) {
CERROR("Can't get peer's IP: %d\n", rc);
return rc;
}
- peer_ip = ntohl(sin.sin_addr.s_addr);
- peer_port = ntohs(sin.sin_port);
+ rc = kranal_recv_connreq(sock, &rx_connreq, 0);
- if (peer_port >= 1024) {
- CERROR("Refusing unprivileged connection from %u.%u.%u.%u/%d\n",
- HIPQUAD(peer_ip), peer_port);
- return -ECONNREFUSED;
- }
-
- rc = kranal_recv_connreq(sock, &connreq,
- kranal_data.kra_listener_timeout);
- if (rc != 0) {
- CERROR("Can't rx connreq from %u.%u.%u.%u/%d: %d\n",
+ if (rc < 0) {
+ CERROR("Can't rx connreq from %u.%u.%u.%u/%d: %d\n",
HIPQUAD(peer_ip), peer_port, rc);
return rc;
}
- peer_nid = connreq.racr_nid;
- LASSERT (peer_nid != PTL_NID_ANY);
+ if (rc > 0) {
+ /* Request from "new" peer: send reply with my MAGIC/VERSION to
+ * tell her I'm old... */
+ kranal_pack_connreq(&tx_connreq, NULL, LNET_NID_ANY);
+
+ rc = libcfs_sock_write(sock, &tx_connreq, sizeof(tx_connreq),
+ lnet_acceptor_timeout());
+ if (rc != 0)
+ CERROR("Can't tx stub connreq to %u.%u.%u.%u/%d: %d\n",
+ HIPQUAD(peer_ip), peer_port, rc);
+
+ return -EPROTO;
+ }
for (i = 0;;i++) {
- LASSERT(i < kranal_data.kra_ndevs);
+ if (i == kranal_data.kra_ndevs) {
+ CERROR("Can't match dev %d from %u.%u.%u.%u/%d\n",
+ rx_connreq.racr_devid, HIPQUAD(peer_ip), peer_port);
+ return -ENODEV;
+ }
dev = &kranal_data.kra_devices[i];
- if (dev->rad_id == connreq->racr_devid)
+ if (dev->rad_id == rx_connreq.racr_devid)
break;
}
- rc = kranal_alloc_conn(&conn, dev,(__u32)(peer_nid & 0xffffffff));
+ rc = kranal_create_conn(&conn, dev);
if (rc != 0)
return rc;
- conn->rac_peer_incarnation = connreq.racr_incarnation;
- conn->rac_keepalive = RANAL_TIMEOUT2KEEPALIVE(connreq.racr_timeout);
- kranal_update_reaper_timeout(conn->rac_keepalive);
-
- rrc = RapkSetRiParams(conn->rac_rihandle, &connreq->racr_riparams);
- if (rrc != RAP_SUCCESS) {
- CERROR("Can't set riparams for "LPX64": %d\n", peer_nid, rrc);
+ kranal_pack_connreq(&tx_connreq, conn, rx_connreq.racr_srcnid);
+
+ rc = libcfs_sock_write(sock, &tx_connreq, sizeof(tx_connreq),
+ lnet_acceptor_timeout());
+ if (rc != 0) {
+ CERROR("Can't tx connreq to %u.%u.%u.%u/%d: %d\n",
+ HIPQUAD(peer_ip), peer_port, rc);
kranal_conn_decref(conn);
- return -EPROTO;
+ return rc;
}
- kranal_pack_connreq(&connreq, conn);
-
- rc = kranal_sock_write(sock, &connreq, sizeof(connreq));
+ rc = kranal_set_conn_params(conn, &rx_connreq, peer_ip, peer_port);
if (rc != 0) {
- CERROR("Can't tx connreq to %u.%u.%u.%u/%p: %d\n",
- HIPQUAD(peer_ip), peer_port, rc);
kranal_conn_decref(conn);
return rc;
}
*connp = conn;
- *peer_nidp = peer_nid;
+ *src_nidp = rx_connreq.racr_srcnid;
+ *dst_nidp = rx_connreq.racr_dstnid;
return 0;
}
int
-ranal_connect_sock(kra_peer_t *peer, struct socket **sockp)
-{
- struct sockaddr_in locaddr;
- struct sockaddr_in srvaddr;
- struct socket *sock;
- unsigned int port;
- int rc;
- int option;
- mm_segment_t oldmm = get_fs();
- struct timeval tv;
-
- for (port = 1023; port >= 512; port--) {
-
- memset(&locaddr, 0, sizeof(locaddr));
- locaddr.sin_family = AF_INET;
- locaddr.sin_port = htons(port);
- locaddr.sin_addr.s_addr = htonl(INADDR_ANY);
-
- memset (&srvaddr, 0, sizeof (srvaddr));
- srvaddr.sin_family = AF_INET;
- srvaddr.sin_port = htons (peer->rap_port);
- srvaddr.sin_addr.s_addr = htonl (peer->rap_ip);
-
- rc = kranal_create_sock(&sock);
- if (rc != 0)
- return rc;
-
- rc = sock->ops->bind(sock,
- (struct sockaddr *)&locaddr, sizeof(locaddr));
- if (rc != 0) {
- sock_release(sock);
-
- if (rc == -EADDRINUSE) {
- CDEBUG(D_NET, "Port %d already in use\n", port);
- continue;
- }
-
- CERROR("Can't bind to reserved port %d: %d\n", port, rc);
- return rc;
- }
-
- rc = sock->ops->connect(sock,
- (struct sockaddr *)&srvaddr, sizeof(srvaddr),
- 0);
- if (rc == 0) {
- *sockp = sock;
- return 0;
- }
-
- sock_release(sock);
-
- if (rc != -EADDRNOTAVAIL) {
- CERROR("Can't connect port %d to %u.%u.%u.%u/%d: %d\n",
- port, HIPQUAD(peer->rap_ip), peer->rap_port, rc);
- return rc;
- }
-
- CDEBUG(D_NET, "Port %d not available for %u.%u.%u.%u/%d\n",
- port, HIPQUAD(peer->rap_ip), peer->rap_port);
- }
-}
-
-
-int
-kranal_active_conn_handshake(kra_peer_t *peer, kra_conn_t **connp)
+kranal_active_conn_handshake(kra_peer_t *peer,
+ lnet_nid_t *dst_nidp, kra_conn_t **connp)
{
- kra_connreq_t connreq;
+ kra_connreq_t connreq;
kra_conn_t *conn;
kra_device_t *dev;
struct socket *sock;
- __u32 id32;
- RAP_RETURN rrc;
- int rc;
+ int rc;
+ unsigned int idx;
- id32 = (peer_nid & 0xffffffff);
- dev = &kranal_data.kra_devices[id32 % kranal_data.kra_ndevs];
+ /* spread connections over all devices using both peer NIDs to ensure
+ * all nids use all devices */
+ idx = peer->rap_nid + kranal_data.kra_ni->ni_nid;
+ dev = &kranal_data.kra_devices[idx % kranal_data.kra_ndevs];
- rc = kranal_alloc_conn(&conn, dev, id32);
+ rc = kranal_create_conn(&conn, dev);
if (rc != 0)
return rc;
- kranal_pack_connreq(&connreq, conn);
-
- memset(&dstaddr, 0, sizeof(addr));
- dstaddr.sin_family = AF_INET;
- dstaddr.sin_port = htons(peer->rap_port);
- dstaddr.sin_addr.s_addr = htonl(peer->rap_ip);
+ kranal_pack_connreq(&connreq, conn, peer->rap_nid);
- memset(&srcaddr, 0, sizeof(addr));
+ if (the_lnet.ln_testprotocompat != 0) {
+ /* single-shot proto test */
+ LNET_LOCK();
+ if ((the_lnet.ln_testprotocompat & 1) != 0) {
+ connreq.racr_version++;
+ the_lnet.ln_testprotocompat &= ~1;
+ }
+ if ((the_lnet.ln_testprotocompat & 2) != 0) {
+ connreq.racr_magic = LNET_PROTO_MAGIC;
+ the_lnet.ln_testprotocompat &= ~2;
+ }
+ LNET_UNLOCK();
+ }
- rc = ranal_connect_sock(peer, &sock);
+ rc = lnet_connect(&sock, peer->rap_nid,
+ 0, peer->rap_ip, peer->rap_port);
if (rc != 0)
goto failed_0;
* immediately after accepting a connection, so we connect and then
* send immediately. */
- rc = kranal_sock_write(sock, &connreq, sizeof(connreq));
+ rc = libcfs_sock_write(sock, &connreq, sizeof(connreq),
+ lnet_acceptor_timeout());
if (rc != 0) {
- CERROR("Can't tx connreq to %u.%u.%u.%u/%d: %d\n",
+ CERROR("Can't tx connreq to %u.%u.%u.%u/%d: %d\n",
HIPQUAD(peer->rap_ip), peer->rap_port, rc);
- goto failed_1;
+ goto failed_2;
}
- rc = kranal_recv_connreq(sock, &connreq, kranal_data.kra_timeout);
+ rc = kranal_recv_connreq(sock, &connreq, 1);
if (rc != 0) {
- CERROR("Can't rx connreq from %u.%u.%u.%u/%d: %d\n",
+ CERROR("Can't rx connreq from %u.%u.%u.%u/%d: %d\n",
HIPQUAD(peer->rap_ip), peer->rap_port, rc);
- goto failed_1;
+ goto failed_2;
}
- sock_release(sock);
+ libcfs_sock_release(sock);
rc = -EPROTO;
- if (connreq.racr_nid != peer->rap_nid) {
- CERROR("Unexpected nid from %u.%u.%u.%u/%d: "
- "received "LPX64" expected "LPX64"\n",
- HIPQUAD(peer->rap_ip), peer->rap_port,
- connreq.racr_nid, peer->rap_nid);
- goto failed_0;
+ if (connreq.racr_srcnid != peer->rap_nid) {
+ CERROR("Unexpected srcnid from %u.%u.%u.%u/%d: "
+ "received %s expected %s\n",
+ HIPQUAD(peer->rap_ip), peer->rap_port,
+ libcfs_nid2str(connreq.racr_srcnid),
+ libcfs_nid2str(peer->rap_nid));
+ goto failed_1;
}
if (connreq.racr_devid != dev->rad_id) {
CERROR("Unexpected device id from %u.%u.%u.%u/%d: "
"received %d expected %d\n",
- HIPQUAD(peer->rap_ip), peer->rap_port,
+ HIPQUAD(peer->rap_ip), peer->rap_port,
connreq.racr_devid, dev->rad_id);
- goto failed_0;
+ goto failed_1;
}
- conn->rac_peer_incarnation = connreq.racr_incarnation;
- conn->rac_keepalive = RANAL_TIMEOUT2KEEPALIVE(connreq.racr_timeout);
- kranal_update_reaper_timeout(conn->rac_keepalive);
-
- rc = -ENETDOWN;
- rrc = RapkSetRiParams(conn->rac_rihandle,
- &connreq->racr_riparams);
- if (rrc != RAP_SUCCESS) {
- CERROR("Can't set riparams for "LPX64": %d\n",
- peer_nid, rrc);
- goto failed_0;
- }
+ rc = kranal_set_conn_params(conn, &connreq,
+ peer->rap_ip, peer->rap_port);
+ if (rc != 0)
+ goto failed_1;
*connp = conn;
- return 0;
+ *dst_nidp = connreq.racr_dstnid;
+ return 0;
+ failed_2:
+ libcfs_sock_release(sock);
failed_1:
- release_sock(sock);
+ lnet_connect_console_error(rc, peer->rap_nid,
+ peer->rap_ip, peer->rap_port);
failed_0:
kranal_conn_decref(conn);
return rc;
}
int
-kranal_conn_handshake (struct socket *sock, kranal_peer_t *peer)
+kranal_conn_handshake (struct socket *sock, kra_peer_t *peer)
{
- kranal_peer_t *peer2;
- ptl_nid_t peer_nid;
- unsigned long flags;
- unsigned long timeout;
- kra_conn_t *conn;
- int rc;
+ kra_peer_t *peer2;
+ kra_tx_t *tx;
+ lnet_nid_t peer_nid;
+ lnet_nid_t dst_nid;
+ unsigned long flags;
+ kra_conn_t *conn;
+ int rc;
int nstale;
+ int new_peer = 0;
- if (sock != NULL) {
- /* passive: listener accepted sock */
- LASSERT (peer == NULL);
+ if (sock == NULL) {
+ /* active: connd wants to connect to 'peer' */
+ LASSERT (peer != NULL);
+ LASSERT (peer->rap_connecting);
- rc = kranal_passive_conn_handshake(sock, &peer_nid, &conn);
+ rc = kranal_active_conn_handshake(peer, &dst_nid, &conn);
if (rc != 0)
return rc;
- /* assume this is a new peer */
- peer = kranal_create_peer(peer_nid);
- if (peer == NULL) {
- CERROR("Can't allocate peer for "LPX64"\n", peer_nid);
- kranal_conn_decref(conn);
- return -ENOMEM;
- }
-
write_lock_irqsave(&kranal_data.kra_global_lock, flags);
- peer2 = kranal_find_peer_locked(peer_nid);
- if (peer2 == NULL) {
- /* peer table takes my initial ref on peer */
- list_add_tail(&peer->rap_list,
- kranal_nid2peerlist(peer_nid));
- } else {
- /* peer_nid already in the peer table */
- kranal_peer_decref(peer);
- peer = peer2;
- }
- /* NB I may now have a non-persistent peer in the peer
- * table with no connections: I can't drop the global lock
- * until I've given it a connection or removed it, and when
- * I do 'peer' can disappear under me. */
+ if (!kranal_peer_active(peer)) {
+ /* raced with peer getting unlinked */
+ write_unlock_irqrestore(&kranal_data. \
+ kra_global_lock,
+ flags);
+ kranal_conn_decref(conn);
+ return -ESTALE;
+ }
+
+ peer_nid = peer->rap_nid;
} else {
- /* active: connd wants to connect to peer */
- LASSERT (peer != NULL);
- LASSERT (peer->rap_connecting);
-
- rc = kranal_active_conn_handshake(peer, &conn);
+ /* passive: listener accepted 'sock' */
+ LASSERT (peer == NULL);
+
+ rc = kranal_passive_conn_handshake(sock, &peer_nid,
+ &dst_nid, &conn);
if (rc != 0)
return rc;
+ /* assume this is a new peer */
+ rc = kranal_create_peer(&peer, peer_nid);
+ if (rc != 0) {
+ CERROR("Can't create conn for %s\n",
+ libcfs_nid2str(peer_nid));
+ kranal_conn_decref(conn);
+ return -ENOMEM;
+ }
+
write_lock_irqsave(&kranal_data.kra_global_lock, flags);
- if (!kranal_peer_active(peer)) {
- /* raced with peer getting unlinked */
- write_unlock_irqrestore(&kranal_data.kra_global_lock,
- flags);
- kranal_conn_decref(conn);
- return ESTALE;
- }
- }
+ peer2 = kranal_find_peer_locked(peer_nid);
+ if (peer2 == NULL) {
+ new_peer = 1;
+ } else {
+ /* peer_nid already in the peer table */
+ kranal_peer_decref(peer);
+ peer = peer2;
+ }
+ }
- LASSERT (kranal_peer_active(peer)); /* peer is in the peer table */
- peer_nid = peer->rap_nid;
-
- /* Refuse to duplicate an existing connection (both sides might try
- * to connect at once). NB we return success! We _do_ have a
- * connection (so we don't need to remove the peer from the peer
- * table) and we _don't_ have any blocked txs to complete */
- if (kranal_conn_isdup_locked(peer, conn->rac_incarnation)) {
- LASSERT (!list_empty(&peer->rap_conns));
- LASSERT (list_empty(&peer->rap_tx_queue));
- write_unlock_irqrestore(&kranal_data.kra_global_lock, flags);
- CWARN("Not creating duplicate connection to "LPX64"\n",
- peer_nid);
- kranal_conn_decref(conn);
- return 0;
- }
+ LASSERT ((!new_peer) != (!kranal_peer_active(peer)));
+
+ /* Refuse connection if peer thinks we are a different NID. We check
+ * this while holding the global lock, to synch with connection
+ * destruction on NID change. */
+ if (kranal_data.kra_ni->ni_nid != dst_nid) {
+ write_unlock_irqrestore(&kranal_data.kra_global_lock,
+ flags);
+
+ CERROR("Stale/bad connection with %s: dst_nid %s, expected %s\n",
+ libcfs_nid2str(peer_nid), libcfs_nid2str(dst_nid),
+ libcfs_nid2str(kranal_data.kra_ni->ni_nid));
+ rc = -ESTALE;
+ goto failed;
+ }
+
+ /* Refuse to duplicate an existing connection (both sides might try to
+ * connect at once). NB we return success! We _are_ connected so we
+ * _don't_ have any blocked txs to complete with failure. */
+ rc = kranal_conn_isdup_locked(peer, conn);
+ if (rc != 0) {
+ LASSERT (!cfs_list_empty(&peer->rap_conns));
+ LASSERT (cfs_list_empty(&peer->rap_tx_queue));
+ write_unlock_irqrestore(&kranal_data.kra_global_lock,
+ flags);
+ CWARN("Not creating duplicate connection to %s: %d\n",
+ libcfs_nid2str(peer_nid), rc);
+ rc = 0;
+ goto failed;
+ }
+
+ if (new_peer) {
+ /* peer table takes my ref on the new peer */
+ cfs_list_add_tail(&peer->rap_list,
+ kranal_nid2peerlist(peer_nid));
+ }
+
+ /* initialise timestamps before reaper looks at them */
+ conn->rac_last_tx = conn->rac_last_rx = jiffies;
- kranal_peer_addref(peer); /* +1 ref for conn */
- conn->rac_peer = peer;
- list_add_tail(&conn->rac_list, &peer->rap_conns);
+ kranal_peer_addref(peer); /* +1 ref for conn */
+ conn->rac_peer = peer;
+ cfs_list_add_tail(&conn->rac_list, &peer->rap_conns);
kranal_conn_addref(conn); /* +1 ref for conn table */
- list_add_tail(&conn->rac_hashlist,
- kranal_cqid2connlist(conn->rac_cqid));
+ cfs_list_add_tail(&conn->rac_hashlist,
+ kranal_cqid2connlist(conn->rac_cqid));
/* Schedule all packets blocking for a connection */
- while (!list_empty(&peer->rap_tx_queue)) {
- tx = list_entry(&peer->rap_tx_queue.next,
- kra_tx_t, tx_list);
+ while (!cfs_list_empty(&peer->rap_tx_queue)) {
+ tx = cfs_list_entry(peer->rap_tx_queue.next,
+ kra_tx_t, tx_list);
- list_del(&tx->tx_list);
- kranal_queue_tx_locked(tx, conn);
+ cfs_list_del(&tx->tx_list);
+ kranal_post_fma(conn, tx);
}
- nstale = kranal_close_stale_conns_locked(peer, conn->rac_incarnation);
+ nstale = kranal_close_stale_conns_locked(peer, conn);
write_unlock_irqrestore(&kranal_data.kra_global_lock, flags);
/* CAVEAT EMPTOR: passive peer can disappear NOW */
if (nstale != 0)
- CWARN("Closed %d stale conns to "LPX64"\n", nstale, peer_nid);
+ CWARN("Closed %d stale conns to %s\n", nstale,
+ libcfs_nid2str(peer_nid));
+
+ CWARN("New connection to %s on devid[%d] = %d\n",
+ libcfs_nid2str(peer_nid),
+ conn->rac_device->rad_idx, conn->rac_device->rad_id);
/* Ensure conn gets checked. Transmits may have been queued and an
* FMA event may have happened before it got in the cq hash table */
kranal_schedule_conn(conn);
- return 0;
+ return 0;
+
+ failed:
+ if (new_peer)
+ kranal_peer_decref(peer);
+ kranal_conn_decref(conn);
+ return rc;
}
void
{
kra_tx_t *tx;
unsigned long flags;
- struct list_head zombies;
+ cfs_list_t zombies;
int rc;
LASSERT (peer->rap_connecting);
+ CDEBUG(D_NET, "About to handshake %s\n",
+ libcfs_nid2str(peer->rap_nid));
+
rc = kranal_conn_handshake(NULL, peer);
- write_lock_irqqsave(&kranal_data.kra_global_lock, flags);
+ CDEBUG(D_NET, "Done handshake %s:%d \n",
+ libcfs_nid2str(peer->rap_nid), rc);
+
+ write_lock_irqsave(&kranal_data.kra_global_lock, flags);
LASSERT (peer->rap_connecting);
peer->rap_connecting = 0;
if (rc == 0) {
/* kranal_conn_handshake() queues blocked txs immediately on
* success to avoid messages jumping the queue */
- LASSERT (list_empty(&peer->rap_tx_queue));
+ LASSERT (cfs_list_empty(&peer->rap_tx_queue));
- /* reset reconnection timeouts */
- peer->rap_reconnect_interval = RANAL_MIN_RECONNECT_INTERVAL;
- peer->rap_reconnect_time = CURRENT_TIME;
+ peer->rap_reconnect_interval = 0; /* OK to reconnect at any time */
- write_unlock_irqrestore(&kranal-data.kra_global_lock, flags);
+ write_unlock_irqrestore(&kranal_data.kra_global_lock,
+ flags);
return;
}
- LASSERT (peer->rap_reconnect_interval != 0);
- peer->rap_reconnect_time = CURRENT_TIME + peer->rap_reconnect_interval;
- peer->rap_reconnect_interval = MAX(RANAL_MAX_RECONNECT_INTERVAL,
- 1 * peer->rap_reconnect_interval);
+ peer->rap_reconnect_interval *= 2;
+ peer->rap_reconnect_interval =
+ MAX(peer->rap_reconnect_interval,
+ *kranal_tunables.kra_min_reconnect_interval);
+ peer->rap_reconnect_interval =
+ MIN(peer->rap_reconnect_interval,
+ *kranal_tunables.kra_max_reconnect_interval);
+
+ peer->rap_reconnect_time = jiffies + peer->rap_reconnect_interval * HZ;
/* Grab all blocked packets while we have the global lock */
- list_add(&zombies, &peer->rap_tx_queue);
- list_del_init(&peer->rap_tx_queue);
+ cfs_list_add(&zombies, &peer->rap_tx_queue);
+ cfs_list_del_init(&peer->rap_tx_queue);
- write_unlock_irqrestore(&kranal_data.kra_global_lock, flags);
+ write_unlock_irqrestore(&kranal_data.kra_global_lock, flags);
- if (list_empty(&zombies))
+ if (cfs_list_empty(&zombies))
return;
- CWARN("Dropping packets for "LPX64": connection failed\n",
- peer->rap_nid);
+ CNETERR("Dropping packets for %s: connection failed\n",
+ libcfs_nid2str(peer->rap_nid));
do {
- tx = list_entry(zombies.next, kra_tx_t, tx_list);
+ tx = cfs_list_entry(zombies.next, kra_tx_t, tx_list);
- list_del(&tx->tx_list);
+ cfs_list_del(&tx->tx_list);
kranal_tx_done(tx, -EHOSTUNREACH);
- } while (!list_empty(&zombies));
+ } while (!cfs_list_empty(&zombies));
}
-int
-kranal_listener(void *arg)
+void
+kranal_free_acceptsock (kra_acceptsock_t *ras)
{
- struct sockaddr_in addr;
- wait_queue_t wait;
- struct socket *sock;
- struct socket *newsock;
- int port;
- int backlog;
- int timeout;
- kra_connreq_t *connreqs;
- char name[16];
-
- /* Parent thread holds kra_nid_mutex, and is, or is about to
- * block on kra_listener_signal */
-
- port = kra_tunables.kra_port;
- snprintf(name, "kranal_lstn%03d", port);
- kportal_daemonize(name);
- kportal_blockallsigs();
-
- init_waitqueue_entry(&wait, current);
-
- rc = -ENOMEM;
- PORTAL_ALLOC(connreqs, 2 * sizeof(*connreqs));
- if (connreqs == NULL)
- goto out_0;
-
- rc = kranal_create_sock(&sock, port);
- if (rc != 0)
- goto out_1;
-
- memset(&addr, 0, sizeof(addr));
- addr.sin_family = AF_INET;
- addr.sin_port = htons(port);
- addr.sin_addr.s_addr = INADDR_ANY
-
- rc = sock->ops->bind(sock, &addr, sizeof(addr));
- if (rc != 0) {
- CERROR("Can't bind to port %d\n", port);
- goto out_2;
- }
-
- rc = sock->ops->listen(sock, kra_tunalbes.kra_backlog);
- if (rc != 0) {
- CERROR("Can't set listen backlog %d: %d\n", backlog, rc);
- goto out_2;
- }
-
- LASSERT (kranal_data.kra_listener_sock == NULL);
- kranal_data.kra_listener_sock = sock;
-
- /* unblock waiting parent */
- LASSERT (kranal_data.kra_listener_shutdown == 0);
- up(&kranal_data.kra_listener_signal);
-
- /* Wake me any time something happens on my socket */
- add_wait_queue(sock->sk->sk_sleep, &wait);
-
- while (kranal_data.kra_listener_shutdown == 0) {
-
- newsock = sock_alloc();
- if (newsock == NULL) {
- CERROR("Can't allocate new socket for accept\n");
- kranal_pause(HZ);
- continue;
- }
-
- set_current_state(TASK_INTERRUPTIBLE);
-
- rc = sock->ops->accept(sock, newsock, O_NONBLOCK);
-
- if (rc == -EAGAIN &&
- kranal_data.kra_listener_shutdown == 0)
- schedule();
-
- set_current_state(TASK_RUNNING);
-
- if (rc != 0) {
- sock_release(newsock);
- if (rc != -EAGAIN) {
- CERROR("Accept failed: %d\n", rc);
- kranal_pause(HZ);
- }
- continue;
- }
-
- kranal_conn_handshake(newsock, NULL);
- sock_release(newsock);
- }
-
- rc = 0;
- remove_wait_queue(sock->sk->sk_sleep, &wait);
- out_2:
- sock_release(sock);
- kranal_data.kra_listener_sock = NULL;
- out_1:
- PORTAL_FREE(connreqs, 2 * sizeof(*connreqs));
- out_0:
- /* set completion status and unblock thread waiting for me
- * (parent on startup failure, executioner on normal shutdown) */
- kranal_data.kra_listener_shutdown = rc;
- up(&kranal_data.kra_listener_signal);
-
- return 0;
+ libcfs_sock_release(ras->ras_sock);
+ LIBCFS_FREE(ras, sizeof(*ras));
}
int
-kranal_start_listener ()
+kranal_accept (lnet_ni_t *ni, struct socket *sock)
{
- long pid;
- int rc;
-
- CDEBUG(D_WARNING, "Starting listener\n");
+ kra_acceptsock_t *ras;
+ int rc;
+ __u32 peer_ip;
+ int peer_port;
+ unsigned long flags;
- /* Called holding kra_nid_mutex: listener stopped */
- LASSERT (kranal_data.kra_listener_sock == NULL);
+ rc = libcfs_sock_getaddr(sock, 1, &peer_ip, &peer_port);
+ LASSERT (rc == 0); /* we succeeded before */
- kranal_data.kra_listener_shutdown == 0;
- pid = kernel_thread(kranal_listener, sock, 0);
- if (pid < 0) {
- CERROR("Can't spawn listener: %ld\n", pid);
- return (int)pid;
+ LIBCFS_ALLOC(ras, sizeof(*ras));
+ if (ras == NULL) {
+ CERROR("ENOMEM allocating connection request from "
+ "%u.%u.%u.%u\n", HIPQUAD(peer_ip));
+ return -ENOMEM;
}
- /* Block until listener has started up. */
- down(&kranal_data.kra_listener_signal);
-
- rc = kranal_data.kra_listener_shutdown;
- LASSERT ((rc != 0) == (kranal_data.kra_listener_sock == NULL));
-
- CDEBUG(D_WARNING, "Listener %ld started OK\n", pid);
- return rc;
-}
-
-void
-kranal_stop_listener()
-{
- CDEBUG(D_WARNING, "Stopping listener\n");
-
- /* Called holding kra_nid_mutex: listener running */
- LASSERT (kranal_data.kra_listener_sock != NULL);
-
- kranal_data.kra_listener_shutdown = 1;
- wake_up_all(kranal_data->kra_listener_sock->sk->sk_sleep);
-
- /* Block until listener has torn down. */
- down(&kranal_data.kra_listener_signal);
-
- LASSERT (kranal_data.kra_listener_sock == NULL);
- CDEBUG(D_WARNING, "Listener stopped\n");
-}
-
-int
-kranal_listener_procint(ctl_table *table, int write, struct file *filp,
- void *buffer, size_t *lenp)
-{
- int *tunable = (int *)table->data;
- int old_val;
- int rc;
-
- down(&kranal_data.kra_nid_mutex);
-
- LASSERT (tunable == &kranal_data.kra_port ||
- tunable == &kranal_data.kra_backlog);
- old_val = *tunable;
-
- rc = proc_dointvec(table, write, filp, buffer, lenp);
-
- if (write &&
- (*tunable != old_val ||
- kranal_data.kra_listener_sock == NULL)) {
+ ras->ras_sock = sock;
- if (kranal_data.kra_listener_sock != NULL)
- kranal_stop_listener();
+ spin_lock_irqsave(&kranal_data.kra_connd_lock, flags);
- rc = kranal_start_listener();
+ cfs_list_add_tail(&ras->ras_list, &kranal_data.kra_connd_acceptq);
+ wake_up(&kranal_data.kra_connd_waitq);
- if (rc != 0) {
- *tunable = old_val;
- kranal_start_listener();
- }
- }
-
- up(&kranal_data.kra_nid_mutex);
- return rc;
+ spin_unlock_irqrestore(&kranal_data.kra_connd_lock, flags);
+ return 0;
}
int
-kranal_set_mynid(ptl_nid_t nid)
+kranal_create_peer (kra_peer_t **peerp, lnet_nid_t nid)
{
- lib_ni_t *ni = &kranal_lib.libnal_ni;
- int rc;
-
- CDEBUG(D_NET, "setting mynid to "LPX64" (old nid="LPX64")\n",
- nid, ni->ni_pid.nid);
-
- down(&kranal_data.kra_nid_mutex);
-
- if (nid == ni->ni_pid.nid) {
- /* no change of NID */
- up(&kranal_data.kra_nid_mutex);
- return 0;
- }
-
- if (kranal_data.kra_listener_sock != NULL)
- kranal_stop_listener();
+ kra_peer_t *peer;
+ unsigned long flags;
- ni->ni_pid.nid = nid;
+ LASSERT (nid != LNET_NID_ANY);
- /* Delete all existing peers and their connections after new
- * NID/incarnation set to ensure no old connections in our brave
- * new world. */
- kranal_del_peer(PTL_NID_ANY, 0);
+ LIBCFS_ALLOC(peer, sizeof(*peer));
+ if (peer == NULL)
+ return -ENOMEM;
- if (nid != PTL_NID_ANY)
- rc = kranal_start_listener();
+ memset(peer, 0, sizeof(*peer)); /* zero flags etc */
- up(&kranal_data.kra_nid_mutex);
- return rc;
-}
+ peer->rap_nid = nid;
+ cfs_atomic_set(&peer->rap_refcount, 1); /* 1 ref for caller */
-kra_peer_t *
-kranal_create_peer (ptl_nid_t nid)
-{
- kra_peer_t *peer;
+ CFS_INIT_LIST_HEAD(&peer->rap_list);
+ CFS_INIT_LIST_HEAD(&peer->rap_connd_list);
+ CFS_INIT_LIST_HEAD(&peer->rap_conns);
+ CFS_INIT_LIST_HEAD(&peer->rap_tx_queue);
- LASSERT (nid != PTL_NID_ANY);
+ peer->rap_reconnect_interval = 0; /* OK to connect at any time */
- PORTAL_ALLOC(peer, sizeof(*peer));
- if (peer == NULL)
- return NULL;
+ write_lock_irqsave(&kranal_data.kra_global_lock, flags);
- memset(peer, 0, sizeof(*peer)); /* zero flags etc */
+ if (kranal_data.kra_nonewpeers) {
+ /* shutdown has started already */
+ write_unlock_irqrestore(&kranal_data.kra_global_lock,
+ flags);
- peer->rap_nid = nid;
- atomic_set(&peer->rap_refcount, 1); /* 1 ref for caller */
+ LIBCFS_FREE(peer, sizeof(*peer));
+ CERROR("Can't create peer: network shutdown\n");
+ return -ESHUTDOWN;
+ }
- INIT_LIST_HEAD(&peer->rap_list); /* not in the peer table yet */
- INIT_LIST_HEAD(&peer->rap_conns);
- INIT_LIST_HEAD(&peer->rap_tx_queue);
+ cfs_atomic_inc(&kranal_data.kra_npeers);
- peer->rap_reconnect_time = CURRENT_TIME;
- peer->rap_reconnect_interval = RANAL_MIN_RECONNECT_INTERVAL;
+ write_unlock_irqrestore(&kranal_data.kra_global_lock, flags);
- atomic_inc(&kranal_data.kra_npeers);
- return peer;
+ *peerp = peer;
+ return 0;
}
void
-__kranal_peer_decref (kra_peer_t *peer)
+kranal_destroy_peer (kra_peer_t *peer)
{
- CDEBUG(D_NET, "peer "LPX64" %p deleted\n", peer->rap_nid, peer);
+ CDEBUG(D_NET, "peer %s %p deleted\n",
+ libcfs_nid2str(peer->rap_nid), peer);
- LASSERT (atomic_read(&peer->rap_refcount) == 0);
+ LASSERT (cfs_atomic_read(&peer->rap_refcount) == 0);
LASSERT (peer->rap_persistence == 0);
LASSERT (!kranal_peer_active(peer));
- LASSERT (peer->rap_connecting == 0);
- LASSERT (list_empty(&peer->rap_conns));
- LASSERT (list_empty(&peer->rap_tx_queue));
+ LASSERT (!peer->rap_connecting);
+ LASSERT (cfs_list_empty(&peer->rap_conns));
+ LASSERT (cfs_list_empty(&peer->rap_tx_queue));
+ LASSERT (cfs_list_empty(&peer->rap_connd_list));
- PORTAL_FREE(peer, sizeof(*peer));
+ LIBCFS_FREE(peer, sizeof(*peer));
/* NB a peer's connections keep a reference on their peer until
* they are destroyed, so we can be assured that _all_ state to do
* with this peer has been cleaned up when its refcount drops to
* zero. */
- atomic_dec(&kranal_data.kra_npeers);
+ cfs_atomic_dec(&kranal_data.kra_npeers);
}
kra_peer_t *
-kranal_find_peer_locked (ptl_nid_t nid)
+kranal_find_peer_locked (lnet_nid_t nid)
{
- struct list_head *peer_list = kranal_nid2peerlist(nid);
- struct list_head *tmp;
+ cfs_list_t *peer_list = kranal_nid2peerlist(nid);
+ cfs_list_t *tmp;
kra_peer_t *peer;
- list_for_each (tmp, peer_list) {
+ cfs_list_for_each (tmp, peer_list) {
- peer = list_entry(tmp, kra_peer_t, rap_list);
+ peer = cfs_list_entry(tmp, kra_peer_t, rap_list);
LASSERT (peer->rap_persistence > 0 || /* persistent peer */
- !list_empty(&peer->rap_conns)); /* active conn */
+ !cfs_list_empty(&peer->rap_conns)); /* active conn */
if (peer->rap_nid != nid)
continue;
- CDEBUG(D_NET, "got peer [%p] -> "LPX64" (%d)\n",
- peer, nid, atomic_read(&peer->rap_refcount));
+ CDEBUG(D_NET, "got peer [%p] -> %s (%d)\n",
+ peer, libcfs_nid2str(nid),
+ cfs_atomic_read(&peer->rap_refcount));
return peer;
}
return NULL;
}
kra_peer_t *
-kranal_find_peer (ptl_nid_t nid)
+kranal_find_peer (lnet_nid_t nid)
{
kra_peer_t *peer;
- read_lock(&kranal_data.kra_global_lock);
+ read_lock(&kranal_data.kra_global_lock);
peer = kranal_find_peer_locked(nid);
if (peer != NULL) /* +1 ref for caller? */
kranal_peer_addref(peer);
- read_unlock(&kranal_data.kra_global_lock);
+ read_unlock(&kranal_data.kra_global_lock);
return peer;
}
kranal_unlink_peer_locked (kra_peer_t *peer)
{
LASSERT (peer->rap_persistence == 0);
- LASSERT (list_empty(&peer->rap_conns));
+ LASSERT (cfs_list_empty(&peer->rap_conns));
LASSERT (kranal_peer_active(peer));
- list_del_init(&peer->rap_list);
+ cfs_list_del_init(&peer->rap_list);
/* lose peerlist's ref */
kranal_peer_decref(peer);
}
int
-kranal_get_peer_info (int index, ptl_nid_t *nidp, int *portp, int *persistencep)
+kranal_get_peer_info (int index, lnet_nid_t *nidp, __u32 *ipp, int *portp,
+ int *persistencep)
{
kra_peer_t *peer;
- struct list_head *ptmp;
+ cfs_list_t *ptmp;
int i;
- read_lock(&kranal_data.kra_global_lock);
+ read_lock(&kranal_data.kra_global_lock);
for (i = 0; i < kranal_data.kra_peer_hash_size; i++) {
- list_for_each(ptmp, &kranal_data.kra_peers[i]) {
+ cfs_list_for_each(ptmp, &kranal_data.kra_peers[i]) {
- peer = list_entry(ptmp, kra_peer_t, rap_list);
+ peer = cfs_list_entry(ptmp, kra_peer_t, rap_list);
LASSERT (peer->rap_persistence > 0 ||
- !list_empty(&peer->rap_conns));
+ !cfs_list_empty(&peer->rap_conns));
if (index-- > 0)
continue;
*nidp = peer->rap_nid;
+ *ipp = peer->rap_ip;
*portp = peer->rap_port;
*persistencep = peer->rap_persistence;
- read_unlock(&kranal_data.kra_global_lock);
+ read_unlock(&kranal_data.kra_global_lock);
return 0;
}
}
- read_unlock(&kranal_data.kra_global_lock);
+ read_unlock(&kranal_data.kra_global_lock);
return -ENOENT;
}
int
-kranal_add_persistent_peer (ptl_nid_t nid, __u32 ip, int port)
+kranal_add_persistent_peer (lnet_nid_t nid, __u32 ip, int port)
{
unsigned long flags;
kra_peer_t *peer;
kra_peer_t *peer2;
+ int rc;
- if (nid == PTL_NID_ANY)
+ if (nid == LNET_NID_ANY)
return -EINVAL;
- peer = kranal_create_peer(nid);
- if (peer == NULL)
- return -ENOMEM;
+ rc = kranal_create_peer(&peer, nid);
+ if (rc != 0)
+ return rc;
- write_lock_irqsave(&kranal_data.kra_global_lock, flags);
+ write_lock_irqsave(&kranal_data.kra_global_lock, flags);
peer2 = kranal_find_peer_locked(nid);
if (peer2 != NULL) {
- kranal_put_peer(peer);
+ kranal_peer_decref(peer);
peer = peer2;
} else {
/* peer table takes existing ref on peer */
- list_add_tail(&peer->rap_list,
+ cfs_list_add_tail(&peer->rap_list,
kranal_nid2peerlist(nid));
}
peer->rap_port = port;
peer->rap_persistence++;
- write_unlock_irqrestore(&kranal_data.kra_global_lock, flags);
+ write_unlock_irqrestore(&kranal_data.kra_global_lock, flags);
return 0;
}
void
-kranal_del_peer_locked (kra_peer_t *peer, int single_share)
+kranal_del_peer_locked (kra_peer_t *peer)
{
- struct list_head *ctmp;
- struct list_head *cnxt;
+ cfs_list_t *ctmp;
+ cfs_list_t *cnxt;
kra_conn_t *conn;
- if (!single_share)
- peer->rap_persistence = 0;
- else if (peer->rap_persistence > 0)
- peer->rap_persistence--;
-
- if (peer->rap_persistence != 0)
- return;
+ peer->rap_persistence = 0;
- if (list_empty(&peer->rap_conns)) {
+ if (cfs_list_empty(&peer->rap_conns)) {
kranal_unlink_peer_locked(peer);
} else {
- list_for_each_safe(ctmp, cnxt, &peer->rap_conns) {
- conn = list_entry(ctmp, kra_conn_t, rac_list);
+ cfs_list_for_each_safe(ctmp, cnxt, &peer->rap_conns) {
+ conn = cfs_list_entry(ctmp, kra_conn_t, rac_list);
kranal_close_conn_locked(conn, 0);
}
}
int
-kranal_del_peer (ptl_nid_t nid, int single_share)
+kranal_del_peer (lnet_nid_t nid)
{
unsigned long flags;
- struct list_head *ptmp;
- struct list_head *pnxt;
+ cfs_list_t *ptmp;
+ cfs_list_t *pnxt;
kra_peer_t *peer;
int lo;
int hi;
int i;
int rc = -ENOENT;
- write_lock_irqsave(&kranal_data.kra_global_lock, flags);
+ write_lock_irqsave(&kranal_data.kra_global_lock, flags);
- if (nid != PTL_NID_ANY)
+ if (nid != LNET_NID_ANY)
lo = hi = kranal_nid2peerlist(nid) - kranal_data.kra_peers;
else {
lo = 0;
}
for (i = lo; i <= hi; i++) {
- list_for_each_safe (ptmp, pnxt, &kranal_data.kra_peers[i]) {
- peer = list_entry(ptmp, kra_peer_t, rap_list);
+ cfs_list_for_each_safe (ptmp, pnxt, &kranal_data.kra_peers[i]) {
+ peer = cfs_list_entry(ptmp, kra_peer_t, rap_list);
LASSERT (peer->rap_persistence > 0 ||
- !list_empty(&peer->rap_conns));
+ !cfs_list_empty(&peer->rap_conns));
- if (!(nid == PTL_NID_ANY || peer->rap_nid == nid))
+ if (!(nid == LNET_NID_ANY || peer->rap_nid == nid))
continue;
- kranal_del_peer_locked(peer, single_share);
+ kranal_del_peer_locked(peer);
rc = 0; /* matched something */
-
- if (single_share)
- goto out;
}
}
- out:
- write_unlock_irqrestore(&kranal_data.kra_global_lock, flags);
+
+ write_unlock_irqrestore(&kranal_data.kra_global_lock, flags);
return rc;
}
kranal_get_conn_by_idx (int index)
{
kra_peer_t *peer;
- struct list_head *ptmp;
+ cfs_list_t *ptmp;
kra_conn_t *conn;
- struct list_head *ctmp;
+ cfs_list_t *ctmp;
int i;
- read_lock (&kranal_data.kra_global_lock);
+ read_lock(&kranal_data.kra_global_lock);
for (i = 0; i < kranal_data.kra_peer_hash_size; i++) {
- list_for_each (ptmp, &kranal_data.kra_peers[i]) {
+ cfs_list_for_each (ptmp, &kranal_data.kra_peers[i]) {
- peer = list_entry(ptmp, kra_peer_t, rap_list);
+ peer = cfs_list_entry(ptmp, kra_peer_t, rap_list);
LASSERT (peer->rap_persistence > 0 ||
- !list_empty(&peer->rap_conns));
+ !cfs_list_empty(&peer->rap_conns));
- list_for_each (ctmp, &peer->rap_conns) {
+ cfs_list_for_each (ctmp, &peer->rap_conns) {
if (index-- > 0)
continue;
- conn = list_entry(ctmp, kra_conn_t, rac_list);
- CDEBUG(D_NET, "++conn[%p] -> "LPX64" (%d)\n",
- conn, conn->rac_peer->rap_nid,
- atomic_read(&conn->rac_refcount));
- atomic_inc(&conn->rac_refcount);
- read_unlock(&kranal_data.kra_global_lock);
+ conn = cfs_list_entry(ctmp, kra_conn_t,
+ rac_list);
+ CDEBUG(D_NET, "++conn[%p] -> %s (%d)\n", conn,
+ libcfs_nid2str(conn->rac_peer->rap_nid),
+ cfs_atomic_read(&conn->rac_refcount));
+ cfs_atomic_inc(&conn->rac_refcount);
+ read_unlock(&kranal_data.kra_global_lock);
return conn;
}
}
}
- read_unlock(&kranal_data.kra_global_lock);
+ read_unlock(&kranal_data.kra_global_lock);
return NULL;
}
kranal_close_peer_conns_locked (kra_peer_t *peer, int why)
{
kra_conn_t *conn;
- struct list_head *ctmp;
- struct list_head *cnxt;
+ cfs_list_t *ctmp;
+ cfs_list_t *cnxt;
int count = 0;
- list_for_each_safe (ctmp, cnxt, &peer->rap_conns) {
- conn = list_entry(ctmp, kra_conn_t, rac_list);
+ cfs_list_for_each_safe (ctmp, cnxt, &peer->rap_conns) {
+ conn = cfs_list_entry(ctmp, kra_conn_t, rac_list);
count++;
kranal_close_conn_locked(conn, why);
}
int
-kranal_close_stale_conns_locked (kra_peer_t *peer, __u64 incarnation)
-{
- kra_conn_t *conn;
- struct list_head *ctmp;
- struct list_head *cnxt;
- int count = 0;
-
- list_for_each_safe (ctmp, cnxt, &peer->rap_conns) {
- conn = list_entry(ctmp, kra_conn_t, rac_list);
-
- if (conn->rac_incarnation == incarnation)
- continue;
-
- CDEBUG(D_NET, "Closing stale conn nid:"LPX64" incarnation:"LPX64"("LPX64")\n",
- peer->rap_nid, conn->rac_incarnation, incarnation);
- LASSERT (conn->rac_incarnation < incarnation);
-
- count++;
- kranal_close_conn_locked(conn, -ESTALE);
- }
-
- return count;
-}
-
-int
-kranal_close_matching_conns (ptl_nid_t nid)
+kranal_close_matching_conns (lnet_nid_t nid)
{
unsigned long flags;
kra_peer_t *peer;
- struct list_head *ptmp;
- struct list_head *pnxt;
+ cfs_list_t *ptmp;
+ cfs_list_t *pnxt;
int lo;
int hi;
int i;
int count = 0;
- write_lock_irqsave(&kranal_data.kra_global_lock, flags);
+ write_lock_irqsave(&kranal_data.kra_global_lock, flags);
- if (nid != PTL_NID_ANY)
+ if (nid != LNET_NID_ANY)
lo = hi = kranal_nid2peerlist(nid) - kranal_data.kra_peers;
else {
lo = 0;
}
for (i = lo; i <= hi; i++) {
- list_for_each_safe (ptmp, pnxt, &kranal_data.kra_peers[i]) {
+ cfs_list_for_each_safe (ptmp, pnxt, &kranal_data.kra_peers[i]) {
- peer = list_entry(ptmp, kra_peer_t, rap_list);
+ peer = cfs_list_entry(ptmp, kra_peer_t, rap_list);
LASSERT (peer->rap_persistence > 0 ||
- !list_empty(&peer->rap_conns));
+ !cfs_list_empty(&peer->rap_conns));
- if (!(nid == PTL_NID_ANY || nid == peer->rap_nid))
+ if (!(nid == LNET_NID_ANY || nid == peer->rap_nid))
continue;
count += kranal_close_peer_conns_locked(peer, 0);
}
}
- write_unlock_irqrestore(&kranal_data.kra_global_lock, flags);
+ write_unlock_irqrestore(&kranal_data.kra_global_lock, flags);
/* wildcards always succeed */
- if (nid == PTL_NID_ANY)
+ if (nid == LNET_NID_ANY)
return 0;
return (count == 0) ? -ENOENT : 0;
}
int
-kranal_cmd(struct portals_cfg *pcfg, void * private)
+kranal_ctl(lnet_ni_t *ni, unsigned int cmd, void *arg)
{
- int rc = -EINVAL;
+ struct libcfs_ioctl_data *data = arg;
+ int rc = -EINVAL;
- LASSERT (pcfg != NULL);
+ LASSERT (ni == kranal_data.kra_ni);
- switch(pcfg->pcfg_command) {
- case NAL_CMD_GET_PEER: {
- ptl_nid_t nid = 0;
+ switch(cmd) {
+ case IOC_LIBCFS_GET_PEER: {
+ lnet_nid_t nid = 0;
__u32 ip = 0;
int port = 0;
int share_count = 0;
- rc = kranal_get_peer_info(pcfg->pcfg_count,
+ rc = kranal_get_peer_info(data->ioc_count,
&nid, &ip, &port, &share_count);
- pcfg->pcfg_nid = nid;
- pcfg->pcfg_size = 0;
- pcfg->pcfg_id = ip;
- pcfg->pcfg_misc = port;
- pcfg->pcfg_count = 0;
- pcfg->pcfg_wait = share_count;
+ data->ioc_nid = nid;
+ data->ioc_count = share_count;
+ data->ioc_u32[0] = ip;
+ data->ioc_u32[1] = port;
break;
}
- case NAL_CMD_ADD_PEER: {
- rc = kranal_add_persistent_peer(pcfg->pcfg_nid,
- pcfg->pcfg_id, /* IP */
- pcfg->pcfg_misc); /* port */
+ case IOC_LIBCFS_ADD_PEER: {
+ rc = kranal_add_persistent_peer(data->ioc_nid,
+ data->ioc_u32[0], /* IP */
+ data->ioc_u32[1]); /* port */
break;
}
- case NAL_CMD_DEL_PEER: {
- rc = kranal_del_peer(pcfg->pcfg_nid,
- /* flags == single_share */
- pcfg->pcfg_flags != 0);
+ case IOC_LIBCFS_DEL_PEER: {
+ rc = kranal_del_peer(data->ioc_nid);
break;
}
- case NAL_CMD_GET_CONN: {
- kra_conn_t *conn = kranal_get_conn_by_idx(pcfg->pcfg_count);
+ case IOC_LIBCFS_GET_CONN: {
+ kra_conn_t *conn = kranal_get_conn_by_idx(data->ioc_count);
if (conn == NULL)
rc = -ENOENT;
else {
rc = 0;
- pcfg->pcfg_nid = conn->rac_peer->rap_nid;
- pcfg->pcfg_id = 0;
- pcfg->pcfg_misc = 0;
- pcfg->pcfg_flags = 0;
- kranal_put_conn(conn);
+ data->ioc_nid = conn->rac_peer->rap_nid;
+ data->ioc_u32[0] = conn->rac_device->rad_id;
+ kranal_conn_decref(conn);
}
break;
}
- case NAL_CMD_CLOSE_CONNECTION: {
- rc = kranal_close_matching_conns(pcfg->pcfg_nid);
+ case IOC_LIBCFS_CLOSE_CONNECTION: {
+ rc = kranal_close_matching_conns(data->ioc_nid);
break;
}
- case NAL_CMD_REGISTER_MYNID: {
- if (pcfg->pcfg_nid == PTL_NID_ANY)
+ case IOC_LIBCFS_REGISTER_MYNID: {
+ /* Ignore if this is a noop */
+ if (data->ioc_nid == ni->ni_nid) {
+ rc = 0;
+ } else {
+ CERROR("obsolete IOC_LIBCFS_REGISTER_MYNID: %s(%s)\n",
+ libcfs_nid2str(data->ioc_nid),
+ libcfs_nid2str(ni->ni_nid));
rc = -EINVAL;
- else
- rc = kranal_set_mynid(pcfg->pcfg_nid);
+ }
break;
}
}
}
void
-kranal_free_txdescs(struct list_head *freelist)
+kranal_free_txdescs(cfs_list_t *freelist)
{
kra_tx_t *tx;
- while (!list_empty(freelist)) {
- tx = list_entry(freelist->next, kra_tx_t, tx_list);
+ while (!cfs_list_empty(freelist)) {
+ tx = cfs_list_entry(freelist->next, kra_tx_t, tx_list);
- list_del(&tx->tx_list);
- PORTAL_FREE(tx->tx_phys, PTL_MD_MAX_IOV * sizeof(*tx->tx_phys));
- PORTAL_FREE(tx, sizeof(*tx));
+ cfs_list_del(&tx->tx_list);
+ LIBCFS_FREE(tx->tx_phys, LNET_MAX_IOV * sizeof(*tx->tx_phys));
+ LIBCFS_FREE(tx, sizeof(*tx));
}
}
int
-kranal_alloc_txdescs(struct list_head *freelist, int n)
+kranal_alloc_txdescs(cfs_list_t *freelist, int n)
{
- int isnblk = (freelist == &kranal_data.kra_idle_nblk_txs);
int i;
kra_tx_t *tx;
- LASSERT (freelist == &kranal_data.kra_idle_txs ||
- freelist == &kranal_data.kra_idle_nblk_txs);
- LASSERT (list_empty(freelist));
+ LASSERT (freelist == &kranal_data.kra_idle_txs);
+ LASSERT (cfs_list_empty(freelist));
for (i = 0; i < n; i++) {
- PORTAL_ALLOC(tx, sizeof(*tx));
+ LIBCFS_ALLOC(tx, sizeof(*tx));
if (tx == NULL) {
- CERROR("Can't allocate %stx[%d]\n",
- isnblk ? "nblk ", i);
- kranal_free_txdescs();
+ CERROR("Can't allocate tx[%d]\n", i);
+ kranal_free_txdescs(freelist);
return -ENOMEM;
}
- PORTAL_ALLOC(tx->tx_phys,
- PLT_MD_MAX_IOV * sizeof(*tx->tx_phys));
+ LIBCFS_ALLOC(tx->tx_phys,
+ LNET_MAX_IOV * sizeof(*tx->tx_phys));
if (tx->tx_phys == NULL) {
- CERROR("Can't allocate %stx[%d]->tx_phys\n",
- isnblk ? "nblk ", i);
+ CERROR("Can't allocate tx[%d]->tx_phys\n", i);
- PORTAL_FREE(tx, sizeof(*tx));
+ LIBCFS_FREE(tx, sizeof(*tx));
kranal_free_txdescs(freelist);
return -ENOMEM;
}
- tx->tx_isnblk = isnblk
tx->tx_buftype = RANAL_BUF_NONE;
+ tx->tx_msg.ram_type = RANAL_MSG_NONE;
- list_add(&tx->tx_list, freelist);
+ cfs_list_add(&tx->tx_list, freelist);
}
return 0;
int
kranal_device_init(int id, kra_device_t *dev)
{
- const int total_ntx = RANAL_NTX + RANAL_NTX_NBLK;
+ int total_ntx = *kranal_tunables.kra_ntx;
RAP_RETURN rrc;
dev->rad_id = id;
- rrc = RapkGetDeviceByIndex(id, NULL, kranal_device_callback,
+ rrc = RapkGetDeviceByIndex(id, kranal_device_callback,
&dev->rad_handle);
if (rrc != RAP_SUCCESS) {
- CERROR("Can't get Rapidarray Device %d: %d\n", idx, rrc);
+ CERROR("Can't get Rapidarray Device %d: %d\n", id, rrc);
goto failed_0;
}
rrc = RapkReserveRdma(dev->rad_handle, total_ntx);
if (rrc != RAP_SUCCESS) {
CERROR("Can't reserve %d RDMA descriptors"
- " for device[%d]: %d\n", total_ntx, i, rrc);
+ " for device %d: %d\n", total_ntx, id, rrc);
goto failed_1;
}
- rrc = RapkCreatePtag(dev->rad_handle,
- &dev->rad_ptag);
+ rrc = RapkCreateCQ(dev->rad_handle, total_ntx, RAP_CQTYPE_SEND,
+ &dev->rad_rdma_cqh);
if (rrc != RAP_SUCCESS) {
- CERROR("Can't create ptag"
- " for device[%d]: %d\n", i, rrc);
+ CERROR("Can't create rdma cq size %d for device %d: %d\n",
+ total_ntx, id, rrc);
goto failed_1;
}
- rrc = RapkCreateCQ(dev->rad_handle, total_ntx, dev->rad_ptag,
- &dev->rad_rdma_cq);
+ rrc = RapkCreateCQ(dev->rad_handle,
+ *kranal_tunables.kra_fma_cq_size,
+ RAP_CQTYPE_RECV, &dev->rad_fma_cqh);
if (rrc != RAP_SUCCESS) {
- CERROR("Can't create rdma cq size %d"
- " for device[%d]: %d\n", total_ntx, i, rrc);
+ CERROR("Can't create fma cq size %d for device %d: %d\n",
+ *kranal_tunables.kra_fma_cq_size, id, rrc);
goto failed_2;
}
- rrc = RapkCreateCQ(dev->rad_handle, RANAL_FMA_CQ_SIZE,
- dev->rad_ptag, &dev->rad_fma_cq);
- if (rrc != RAP_SUCCESS) {
- CERROR("Can't create fma cq size %d"
- " for device[%d]: %d\n", RANAL_RX_CQ_SIZE, i, rrc);
- goto failed_3;
- }
-
return 0;
- failed_3:
- RapkDestroyCQ(dev->rad_handle, dev->rad_rdma_cq, dev->rad_ptag);
failed_2:
- RapkDestroyPtag(dev->rad_handle, dev->rad_ptag);
+ RapkDestroyCQ(dev->rad_handle, dev->rad_rdma_cqh);
failed_1:
RapkReleaseDevice(dev->rad_handle);
failed_0:
void
kranal_device_fini(kra_device_t *dev)
{
- RapkDestroyCQ(dev->rad_handle, dev->rad_rx_cq, dev->rad_ptag);
- RapkDestroyCQ(dev->rad_handle, dev->rad_rdma_cq, dev->rad_ptag);
- RapkDestroyPtag(dev->rad_handle, dev->rad_ptag);
+ LASSERT (cfs_list_empty(&dev->rad_ready_conns));
+ LASSERT (cfs_list_empty(&dev->rad_new_conns));
+ LASSERT (dev->rad_nphysmap == 0);
+ LASSERT (dev->rad_nppphysmap == 0);
+ LASSERT (dev->rad_nvirtmap == 0);
+ LASSERT (dev->rad_nobvirtmap == 0);
+
+ LASSERT(dev->rad_scheduler == NULL);
+ RapkDestroyCQ(dev->rad_handle, dev->rad_fma_cqh);
+ RapkDestroyCQ(dev->rad_handle, dev->rad_rdma_cqh);
RapkReleaseDevice(dev->rad_handle);
}
void
-kranal_api_shutdown (nal_t *nal)
+kranal_shutdown (lnet_ni_t *ni)
{
int i;
- int rc;
unsigned long flags;
-
- if (nal->nal_refct != 0) {
- /* This module got the first ref */
- PORTAL_MODULE_UNUSE;
- return;
- }
CDEBUG(D_MALLOC, "before NAL cleanup: kmem %d\n",
- atomic_read(&portal_kmemory));
+ cfs_atomic_read(&libcfs_kmemory));
- LASSERT (nal == &kranal_api);
+ LASSERT (ni == kranal_data.kra_ni);
+ LASSERT (ni->ni_data == &kranal_data);
switch (kranal_data.kra_init) {
default:
LBUG();
case RANAL_INIT_ALL:
- /* stop calls to nal_cmd */
- libcfs_nal_cmd_unregister(OPENRANAL);
- /* No new persistent peers */
+ /* Prevent new peers from being created */
+ write_lock_irqsave(&kranal_data.kra_global_lock, flags);
+ kranal_data.kra_nonewpeers = 1;
+ write_unlock_irqrestore(&kranal_data.kra_global_lock,
+ flags);
- /* resetting my NID to unadvertises me, removes my
- * listener and nukes all current peers */
- kranal_set_mynid(PTL_NID_ANY);
- /* no new peers or conns */
+ /* Remove all existing peers from the peer table */
+ kranal_del_peer(LNET_NID_ANY);
- /* Wait for all peer/conn state to clean up */
+ /* Wait for pending conn reqs to be handled */
i = 2;
- while (atomic_read(&kranal_data.kra_nconns) != 0 ||
- atomic_read(&kranal-data.kra_npeers) != 0) {
+ spin_lock_irqsave(&kranal_data.kra_connd_lock, flags);
+ while (!cfs_list_empty(&kranal_data.kra_connd_acceptq)) {
+ spin_unlock_irqrestore(&kranal_data.kra_connd_lock,
+ flags);
i++;
- CDEBUG(((i & (-i)) == i) ? D_WARNING : D_NET, /* power of 2? */
- "waiting for %d peers and %d conns to close down\n",
- atomic_read(&kranal_data.kra_npeers),
- atomic_read(&kranal_data.kra_nconns));
- kranal_pause(HZ);
+ CDEBUG(((i & (-i)) == i) ? D_WARNING : D_NET, /* 2**n */
+ "waiting for conn reqs to clean up\n");
+ cfs_pause(cfs_time_seconds(1));
+
+ spin_lock_irqsave(&kranal_data.kra_connd_lock,
+ flags);
}
- /* fall through */
+ spin_unlock_irqrestore(&kranal_data.kra_connd_lock, flags);
- case RANAL_INIT_LIB:
- lib_fini(&kranal_lib);
+ /* Wait for all peers to be freed */
+ i = 2;
+ while (cfs_atomic_read(&kranal_data.kra_npeers) != 0) {
+ i++;
+ CDEBUG(((i & (-i)) == i) ? D_WARNING : D_NET, /* 2**n */
+ "waiting for %d peers to close down\n",
+ cfs_atomic_read(&kranal_data.kra_npeers));
+ cfs_pause(cfs_time_seconds(1));
+ }
/* fall through */
case RANAL_INIT_DATA:
break;
}
- /* flag threads to terminate; wake and wait for them to die */
+ /* Peer state all cleaned up BEFORE setting shutdown, so threads don't
+ * have to worry about shutdown races. NB connections may be created
+ * while there are still active connds, but these will be temporary
+ * since peer creation always fails after the listener has started to
+ * shut down. */
+ LASSERT (cfs_atomic_read(&kranal_data.kra_npeers) == 0);
+
+ /* Flag threads to terminate */
kranal_data.kra_shutdown = 1;
- for (i = 0; i < kranal_data.kra_ndevs; i++) {
- kra_device_t *dev = &kranal_data.kra_devices[i];
-
- LASSERT (list_empty(&dev->rad_connq));
+ for (i = 0; i < kranal_data.kra_ndevs; i++) {
+ kra_device_t *dev = &kranal_data.kra_devices[i];
- spin_lock_irqsave(&dev->rad_lock, flags);
- wake_up(&dev->rad_waitq);
- spin_unlock_irqrestore(&dev->rad_lock, flags);
- }
+ spin_lock_irqsave(&dev->rad_lock, flags);
+ wake_up(&dev->rad_waitq);
+ spin_unlock_irqrestore(&dev->rad_lock, flags);
+ }
- spin_lock_irqsave(&kranal_data.kra_reaper_lock, flags);
- wake_up_all(&kranal_data.kra_reaper_waitq);
- spin_unlock_irqrestore(&kranal_data.kra_reaper_lock, flags);
+ spin_lock_irqsave(&kranal_data.kra_reaper_lock, flags);
+ wake_up_all(&kranal_data.kra_reaper_waitq);
+ spin_unlock_irqrestore(&kranal_data.kra_reaper_lock, flags);
- LASSERT (list_empty(&kranal_data.kra_connd_peers));
- spin_lock_irqsave(&kranal-data.kra_connd_lock, flags);
- wake_up_all(&kranal_data.kra_connd_waitq);
- spin_unlock_irqrestore(&kranal-data.kra_connd_lock, flags);
+ LASSERT (cfs_list_empty(&kranal_data.kra_connd_peers));
+ spin_lock_irqsave(&kranal_data.kra_connd_lock, flags);
+ wake_up_all(&kranal_data.kra_connd_waitq);
+ spin_unlock_irqrestore(&kranal_data.kra_connd_lock, flags);
+ /* Wait for threads to exit */
i = 2;
- while (atomic_read(&kranal_data.kra_nthreads) != 0) {
+ while (cfs_atomic_read(&kranal_data.kra_nthreads) != 0) {
i++;
CDEBUG(((i & (-i)) == i) ? D_WARNING : D_NET, /* power of 2? */
"Waiting for %d threads to terminate\n",
- atomic_read(&kranal_data.kra_nthreads));
- kranal_pause(HZ);
+ cfs_atomic_read(&kranal_data.kra_nthreads));
+ cfs_pause(cfs_time_seconds(1));
}
- LASSERT (atomic_read(&kranal_data.kra_npeers) == 0);
+ LASSERT (cfs_atomic_read(&kranal_data.kra_npeers) == 0);
if (kranal_data.kra_peers != NULL) {
for (i = 0; i < kranal_data.kra_peer_hash_size; i++)
- LASSERT (list_empty(&kranal_data.kra_peers[i]));
+ LASSERT (cfs_list_empty(&kranal_data.kra_peers[i]));
- PORTAL_FREE(kranal_data.kra_peers,
- sizeof (struct list_head) *
+ LIBCFS_FREE(kranal_data.kra_peers,
+ sizeof (cfs_list_t) *
kranal_data.kra_peer_hash_size);
}
- LASSERT (atomic_read(&kranal_data.kra_nconns) == 0);
+ LASSERT (cfs_atomic_read(&kranal_data.kra_nconns) == 0);
if (kranal_data.kra_conns != NULL) {
for (i = 0; i < kranal_data.kra_conn_hash_size; i++)
- LASSERT (list_empty(&kranal_data.kra_conns[i]));
+ LASSERT (cfs_list_empty(&kranal_data.kra_conns[i]));
- PORTAL_FREE(kranal_data.kra_conns,
- sizeof (struct list_head) *
+ LIBCFS_FREE(kranal_data.kra_conns,
+ sizeof (cfs_list_t) *
kranal_data.kra_conn_hash_size);
}
kranal_device_fini(&kranal_data.kra_devices[i]);
kranal_free_txdescs(&kranal_data.kra_idle_txs);
- kranal_free_txdescs(&kranal_data.kra_idle_nblk_txs);
CDEBUG(D_MALLOC, "after NAL cleanup: kmem %d\n",
- atomic_read(&portal_kmemory));
- printk(KERN_INFO "Lustre: RapidArray NAL unloaded (final mem %d)\n",
- atomic_read(&portal_kmemory));
+ cfs_atomic_read(&libcfs_kmemory));
- kranal_data.kra_init = RANAL_INIT_NOTHING;
+ kranal_data.kra_init = RANAL_INIT_NOTHING;
+ module_put(THIS_MODULE);
}
int
-kranal_api_startup (nal_t *nal, ptl_pid_t requested_pid,
- ptl_ni_limits_t *requested_limits,
- ptl_ni_limits_t *actual_limits)
+kranal_startup (lnet_ni_t *ni)
{
- static int device_ids[] = {RAPK_MAIN_DEVICE_ID,
- RAPK_EXPANSION_DEVICE_ID};
struct timeval tv;
- ptl_process_id_t process_id;
- int pkmem = atomic_read(&portal_kmemory);
+ int pkmem = cfs_atomic_read(&libcfs_kmemory);
int rc;
int i;
kra_device_t *dev;
+ char name[16];
- LASSERT (nal == &kranal_api);
+ LASSERT (ni->ni_lnd == &the_kralnd);
- if (nal->nal_refct != 0) {
- if (actual_limits != NULL)
- *actual_limits = kranal_lib.libnal_ni.ni_actual_limits;
- /* This module got the first ref */
- PORTAL_MODULE_USE;
- return PTL_OK;
+ /* Only 1 instance supported */
+ if (kranal_data.kra_init != RANAL_INIT_NOTHING) {
+ CERROR ("Only 1 instance supported\n");
+ return -EPERM;
}
- LASSERT (kranal_data.kra_init == RANAL_INIT_NOTHING);
+ if (lnet_set_ip_niaddr(ni) != 0) {
+ CERROR ("Can't determine my NID\n");
+ return -EPERM;
+ }
+ if (*kranal_tunables.kra_credits > *kranal_tunables.kra_ntx) {
+ CERROR ("Can't set credits(%d) > ntx(%d)\n",
+ *kranal_tunables.kra_credits,
+ *kranal_tunables.kra_ntx);
+ return -EINVAL;
+ }
+
memset(&kranal_data, 0, sizeof(kranal_data)); /* zero pointers, flags etc */
- /* CAVEAT EMPTOR: Every 'Fma' message includes the sender's NID and
- * a unique (for all time) incarnation so we can uniquely identify
- * the sender. The incarnation is an incrementing counter
- * initialised with seconds + microseconds at startup time. So we
- * rely on NOT creating connections more frequently on average than
- * 1MHz to ensure we don't use old incarnations when we reboot. */
- do_gettimeofday(&tv);
- kranal_data.kra_next_incarnation = (((__u64)tv.tv_sec) * 1000000) + tv.tv_usec;
+ ni->ni_maxtxcredits = *kranal_tunables.kra_credits;
+ ni->ni_peertxcredits = *kranal_tunables.kra_peercredits;
- init_MUTEX(&kranal_data.kra_nid_mutex);
- init_MUTEX_LOCKED(&kranal_data.kra_listener_signal);
+ ni->ni_data = &kranal_data;
+ kranal_data.kra_ni = ni;
- rwlock_init(&kranal_data.kra_global_lock);
+ /* CAVEAT EMPTOR: Every 'Fma' message includes the sender's NID and
+ * a unique (for all time) connstamp so we can uniquely identify
+ * the sender. The connstamp is an incrementing counter
+ * initialised with seconds + microseconds at startup time. So we
+ * rely on NOT creating connections more frequently on average than
+ * 1MHz to ensure we don't use old connstamps when we reboot. */
+ do_gettimeofday(&tv);
+ kranal_data.kra_connstamp =
+ kranal_data.kra_peerstamp = (((__u64)tv.tv_sec) * 1000000) + tv.tv_usec;
- for (i = 0; i < RANAL_MAXDEVS; i++ ) {
- kra_device_t *dev = &kranal_data.kra_devices[i];
+ rwlock_init(&kranal_data.kra_global_lock);
- dev->rad_idx = i;
- INIT_LIST_HEAD(&dev->rad_connq);
- init_waitqueue_head(&dev->rad_waitq);
- spin_lock_init(&dev->rad_lock);
- }
+ for (i = 0; i < RANAL_MAXDEVS; i++ ) {
+ kra_device_t *dev = &kranal_data.kra_devices[i];
+
+ dev->rad_idx = i;
+ CFS_INIT_LIST_HEAD(&dev->rad_ready_conns);
+ CFS_INIT_LIST_HEAD(&dev->rad_new_conns);
+ init_waitqueue_head(&dev->rad_waitq);
+ spin_lock_init(&dev->rad_lock);
+ }
- init_waitqueue_head(&kranal_data.kra_reaper_waitq);
- spin_lock_init(&kranal_data.kra_reaper_lock);
+ kranal_data.kra_new_min_timeout = MAX_SCHEDULE_TIMEOUT;
+ init_waitqueue_head(&kranal_data.kra_reaper_waitq);
+ spin_lock_init(&kranal_data.kra_reaper_lock);
- INIT_LIST_HEAD(&kranal_data.kra_connd_peers);
- init_waitqueue_head(&kranal_data.kra_connd_waitq);
- spin_lock_init(&kranal_data.kra_connd_lock);
+ CFS_INIT_LIST_HEAD(&kranal_data.kra_connd_acceptq);
+ CFS_INIT_LIST_HEAD(&kranal_data.kra_connd_peers);
+ init_waitqueue_head(&kranal_data.kra_connd_waitq);
+ spin_lock_init(&kranal_data.kra_connd_lock);
- INIT_LIST_HEAD(&kranal_data.kra_idle_txs);
- INIT_LIST_HEAD(&kranal_data.kra_idle_nblk_txs);
- init_waitqueue_head(&kranal_data.kra_idle_tx_waitq);
- spin_lock_init(&kranal_data.kra_tx_lock);
+ CFS_INIT_LIST_HEAD(&kranal_data.kra_idle_txs);
+ spin_lock_init(&kranal_data.kra_tx_lock);
+
+ /* OK to call kranal_api_shutdown() to cleanup now */
+ kranal_data.kra_init = RANAL_INIT_DATA;
+ try_module_get(THIS_MODULE);
- /* OK to call kranal_api_shutdown() to cleanup now */
- kranal_data.kra_init = RANAL_INIT_DATA;
-
kranal_data.kra_peer_hash_size = RANAL_PEER_HASH_SIZE;
- PORTAL_ALLOC(kranal_data.kra_peers,
- sizeof(struct list_head) * kranal_data.kra_peer_hash_size);
+ LIBCFS_ALLOC(kranal_data.kra_peers,
+ sizeof(cfs_list_t) *
+ kranal_data.kra_peer_hash_size);
if (kranal_data.kra_peers == NULL)
goto failed;
for (i = 0; i < kranal_data.kra_peer_hash_size; i++)
- INIT_LIST_HEAD(&kranal_data.kra_peers[i]);
+ CFS_INIT_LIST_HEAD(&kranal_data.kra_peers[i]);
kranal_data.kra_conn_hash_size = RANAL_PEER_HASH_SIZE;
- PORTAL_ALLOC(kranal_data.kra_conns,
- sizeof(struct list_head) * kranal_data.kra_conn_hash_size);
+ LIBCFS_ALLOC(kranal_data.kra_conns,
+ sizeof(cfs_list_t) *
+ kranal_data.kra_conn_hash_size);
if (kranal_data.kra_conns == NULL)
goto failed;
for (i = 0; i < kranal_data.kra_conn_hash_size; i++)
- INIT_LIST_HEAD(&kranal_data.kra_conns[i]);
+ CFS_INIT_LIST_HEAD(&kranal_data.kra_conns[i]);
- rc = kranal_alloc_txdescs(&kranal_data.kra_idle_txs, RANAL_NTX);
+ rc = kranal_alloc_txdescs(&kranal_data.kra_idle_txs,
+ *kranal_tunables.kra_ntx);
if (rc != 0)
goto failed;
- rc = kranal_alloc_txdescs(&kranal_data.kra_idle_nblk_txs,RANAL_NTX_NBLK);
- if (rc != 0)
- goto failed;
-
- process_id.pid = requested_pid;
- process_id.nid = PTL_NID_ANY; /* don't know my NID yet */
-
- rc = lib_init(&kranal_lib, nal, process_id,
- requested_limits, actual_limits);
- if (rc != PTL_OK) {
- CERROR("lib_init failed: error %d\n", rc);
- goto failed;
- }
-
- /* lib interface initialised */
- kranal_data.kra_init = RANAL_INIT_LIB;
- /*****************************************************/
-
- rc = kranal_thread_start(kranal_reaper, NULL);
+ rc = kranal_thread_start(kranal_reaper, NULL, "kranal_reaper");
if (rc != 0) {
CERROR("Can't spawn ranal reaper: %d\n", rc);
goto failed;
}
- for (i = 0; i < RANAL_N_CONND; i++) {
- rc = kranal_thread_start(kranal_connd, (void *)i);
+ for (i = 0; i < *kranal_tunables.kra_n_connd; i++) {
+ snprintf(name, sizeof(name), "kranal_connd_%02ld", i);
+ rc = kranal_thread_start(kranal_connd,
+ (void *)(unsigned long)i, name);
if (rc != 0) {
CERROR("Can't spawn ranal connd[%d]: %d\n",
i, rc);
}
}
- LASSERT(kranal_data.kra_ndevs == 0);
- for (i = 0; i < sizeof(device_ids)/sizeof(device_ids[0]); i++) {
+ LASSERT (kranal_data.kra_ndevs == 0);
+
+ /* Use all available RapidArray devices */
+ for (i = 0; i < RANAL_MAXDEVS; i++) {
dev = &kranal_data.kra_devices[kranal_data.kra_ndevs];
- rc = kranal_device_init(device_ids[i], dev);
+ rc = kranal_device_init(kranal_devids[i], dev);
if (rc == 0)
kranal_data.kra_ndevs++;
+ }
- rc = kranal_thread_start(kranal_scheduler, dev);
+ if (kranal_data.kra_ndevs == 0) {
+ CERROR("Can't initialise any RapidArray devices\n");
+ goto failed;
+ }
+
+ for (i = 0; i < kranal_data.kra_ndevs; i++) {
+ dev = &kranal_data.kra_devices[i];
+ snprintf(name, sizeof(name), "kranal_sd_%02d", dev->rad_idx);
+ rc = kranal_thread_start(kranal_scheduler, dev, name);
if (rc != 0) {
CERROR("Can't spawn ranal scheduler[%d]: %d\n",
i, rc);
}
}
- if (kranal_data.kra_ndevs == 0)
- goto failed;
-
- rc = libcfs_nal_cmd_register(OPENRANAL, &kranal_cmd, NULL);
- if (rc != 0) {
- CERROR("Can't initialise command interface (rc = %d)\n", rc);
- goto failed;
- }
-
/* flag everything initialised */
kranal_data.kra_init = RANAL_INIT_ALL;
/*****************************************************/
- CDEBUG(D_MALLOC, "initial kmem %d\n", atomic_read(&portal_kmemory));
- printk(KERN_INFO "Lustre: RapidArray NAL loaded "
- "(initial mem %d)\n", pkmem);
-
- return PTL_OK;
+ CDEBUG(D_MALLOC, "initial kmem %d\n", pkmem);
+ return 0;
failed:
- kranal_api_shutdown(&kranal_api);
- return PTL_FAIL;
+ kranal_shutdown(ni);
+ return -ENETDOWN;
}
void __exit
kranal_module_fini (void)
{
-#ifdef CONFIG_SYSCTL
- if (kranal_tunables.kra_sysctl != NULL)
- unregister_sysctl_table(kranal_tunables.kra_sysctl);
-#endif
- PtlNIFini(kranal_ni);
-
- ptl_unregister_nal(OPENRANAL);
+ lnet_unregister_lnd(&the_kralnd);
+ kranal_tunables_fini();
}
int __init
{
int rc;
- /* the following must be sizeof(int) for
- * proc_dointvec/kranal_listener_procint() */
- LASSERT (sizeof(kranal_tunables.kra_timeout) == sizeof(int));
- LASSERT (sizeof(kranal_tunables.kra_listener_timeout) == sizeof(int));
- LASSERT (sizeof(kranal_tunables.kra_backlog) == sizeof(int));
- LASSERT (sizeof(kranal_tunables.kra_port) == sizeof(int));
- LASSERT (sizeof(kranal_tunables.kra_max_immediate) == sizeof(int));
-
- kranal_api.nal_ni_init = kranal_api_startup;
- kranal_api.nal_ni_fini = kranal_api_shutdown;
-
- /* Initialise dynamic tunables to defaults once only */
- kranal_tunables.kra_timeout = RANAL_TIMEOUT;
-
- rc = ptl_register_nal(OPENRANAL, &kranal_api);
- if (rc != PTL_OK) {
- CERROR("Can't register RANAL: %d\n", rc);
- return -ENOMEM; /* or something... */
- }
+ rc = kranal_tunables_init();
+ if (rc != 0)
+ return rc;
- /* Pure gateways want the NAL started up at module load time... */
- rc = PtlNIInit(OPENRANAL, LUSTRE_SRV_PTL_PID, NULL, NULL, &kranal_ni);
- if (rc != PTL_OK && rc != PTL_IFACE_DUP) {
- ptl_unregister_nal(OPENRANAL);
- return -ENODEV;
- }
+ lnet_register_lnd(&the_kralnd);
-#ifdef CONFIG_SYSCTL
- /* Press on regardless even if registering sysctl doesn't work */
- kranal_tunables.kra_sysctl =
- register_sysctl_table(kranal_top_ctl_table, 0);
-#endif
return 0;
}
-MODULE_AUTHOR("Cluster File Systems, Inc. <info@clusterfs.com>");
-MODULE_DESCRIPTION("Kernel RapidArray NAL v0.01");
+MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
+MODULE_DESCRIPTION("Kernel RapidArray LND v0.01");
MODULE_LICENSE("GPL");
module_init(kranal_module_init);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff