/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * Copyright (C) 2006 Cluster File Systems, Inc.
- * Author: Eric Barton <eric@bartonsoftware.com>
+ * GPL HEADER START
*
- * This file is part of Lustre, http://www.lustre.org.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * 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 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 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.
+ * 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).
*
- * 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.
+ * 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
*
+ * 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
+ */
+/*
+ * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lnet/klnds/o2iblnd/o2iblnd.c
+ *
+ * Author: Eric Barton <eric@bartonsoftware.com>
*/
#include "o2iblnd.h"
-lnd_t the_kiblnd = {
+lnd_t the_o2iblnd = {
.lnd_type = O2IBLND,
.lnd_startup = kiblnd_startup,
.lnd_shutdown = kiblnd_shutdown,
.lnd_ctl = kiblnd_ctl,
+ .lnd_query = kiblnd_query,
.lnd_send = kiblnd_send,
.lnd_recv = kiblnd_recv,
};
return (sum == 0) ? 1 : sum;
}
-void
-kiblnd_init_msg (kib_msg_t *msg, int type, int body_nob)
+static char *
+kiblnd_msgtype2str(int type)
+{
+ switch (type) {
+ case IBLND_MSG_CONNREQ:
+ return "CONNREQ";
+
+ case IBLND_MSG_CONNACK:
+ return "CONNACK";
+
+ case IBLND_MSG_NOOP:
+ return "NOOP";
+
+ case IBLND_MSG_IMMEDIATE:
+ return "IMMEDIATE";
+
+ case IBLND_MSG_PUT_REQ:
+ return "PUT_REQ";
+
+ case IBLND_MSG_PUT_NAK:
+ return "PUT_NAK";
+
+ case IBLND_MSG_PUT_ACK:
+ return "PUT_ACK";
+
+ case IBLND_MSG_PUT_DONE:
+ return "PUT_DONE";
+
+ case IBLND_MSG_GET_REQ:
+ return "GET_REQ";
+
+ case IBLND_MSG_GET_DONE:
+ return "GET_DONE";
+
+ default:
+ return "???";
+ }
+}
+
+static int
+kiblnd_msgtype2size(int type)
+{
+ const int hdr_size = offsetof(kib_msg_t, ibm_u);
+
+ switch (type) {
+ case IBLND_MSG_CONNREQ:
+ case IBLND_MSG_CONNACK:
+ return hdr_size + sizeof(kib_connparams_t);
+
+ case IBLND_MSG_NOOP:
+ return hdr_size;
+
+ case IBLND_MSG_IMMEDIATE:
+ return offsetof(kib_msg_t, ibm_u.immediate.ibim_payload[0]);
+
+ case IBLND_MSG_PUT_REQ:
+ return hdr_size + sizeof(kib_putreq_msg_t);
+
+ case IBLND_MSG_PUT_ACK:
+ return hdr_size + sizeof(kib_putack_msg_t);
+
+ case IBLND_MSG_GET_REQ:
+ return hdr_size + sizeof(kib_get_msg_t);
+
+ case IBLND_MSG_PUT_NAK:
+ case IBLND_MSG_PUT_DONE:
+ case IBLND_MSG_GET_DONE:
+ return hdr_size + sizeof(kib_completion_msg_t);
+ default:
+ return -1;
+ }
+}
+
+static int
+kiblnd_unpack_rd(kib_msg_t *msg, int flip)
{
- msg->ibm_type = type;
- msg->ibm_nob = offsetof(kib_msg_t, ibm_u) + body_nob;
+ kib_rdma_desc_t *rd;
+ int nob;
+ int n;
+ int i;
+
+ LASSERT (msg->ibm_type == IBLND_MSG_GET_REQ ||
+ msg->ibm_type == IBLND_MSG_PUT_ACK);
+
+ rd = msg->ibm_type == IBLND_MSG_GET_REQ ?
+ &msg->ibm_u.get.ibgm_rd :
+ &msg->ibm_u.putack.ibpam_rd;
+
+ if (flip) {
+ __swab32s(&rd->rd_key);
+ __swab32s(&rd->rd_nfrags);
+ }
+
+ n = rd->rd_nfrags;
+
+ if (n <= 0 || n > IBLND_MAX_RDMA_FRAGS) {
+ CERROR("Bad nfrags: %d, should be 0 < n <= %d\n",
+ n, IBLND_MAX_RDMA_FRAGS);
+ return 1;
+ }
+
+ nob = offsetof (kib_msg_t, ibm_u) +
+ kiblnd_rd_msg_size(rd, msg->ibm_type, n);
+
+ if (msg->ibm_nob < nob) {
+ CERROR("Short %s: %d(%d)\n",
+ kiblnd_msgtype2str(msg->ibm_type), msg->ibm_nob, nob);
+ return 1;
+ }
+
+ if (!flip)
+ return 0;
+
+ for (i = 0; i < n; i++) {
+ __swab32s(&rd->rd_frags[i].rf_nob);
+ __swab64s(&rd->rd_frags[i].rf_addr);
+ }
+
+ return 0;
}
void
-kiblnd_pack_msg (lnet_ni_t *ni, kib_msg_t *msg,
+kiblnd_pack_msg (lnet_ni_t *ni, kib_msg_t *msg, int version,
int credits, lnet_nid_t dstnid, __u64 dststamp)
{
kib_net_t *net = ni->ni_data;
/* CAVEAT EMPTOR! all message fields not set here should have been
* initialised previously. */
msg->ibm_magic = IBLND_MSG_MAGIC;
- msg->ibm_version = IBLND_MSG_VERSION;
+ msg->ibm_version = version;
/* ibm_type */
msg->ibm_credits = credits;
/* ibm_nob */
msg->ibm_cksum = 0;
- msg->ibm_srcnid = lnet_ptlcompat_srcnid(ni->ni_nid, dstnid);
+ msg->ibm_srcnid = ni->ni_nid;
msg->ibm_srcstamp = net->ibn_incarnation;
msg->ibm_dstnid = dstnid;
msg->ibm_dststamp = dststamp;
{
const int hdr_size = offsetof(kib_msg_t, ibm_u);
__u32 msg_cksum;
- int flip;
+ __u16 version;
int msg_nob;
-#if !IBLND_MAP_ON_DEMAND
- int i;
- int n;
-#endif
+ int flip;
+
/* 6 bytes are enough to have received magic + version */
if (nob < 6) {
CERROR("Short message: %d\n", nob);
return -EPROTO;
}
- if (msg->ibm_version !=
- (flip ? __swab16(IBLND_MSG_VERSION) : IBLND_MSG_VERSION)) {
- CERROR("Bad version: %d\n", msg->ibm_version);
+ version = flip ? __swab16(msg->ibm_version) : msg->ibm_version;
+ if (version != IBLND_MSG_VERSION &&
+ version != IBLND_MSG_VERSION_1) {
+ CERROR("Bad version: %x\n", version);
return -EPROTO;
}
CERROR("Bad checksum\n");
return -EPROTO;
}
+
msg->ibm_cksum = msg_cksum;
if (flip) {
/* leave magic unflipped as a clue to peer endianness */
- __swab16s(&msg->ibm_version);
+ msg->ibm_version = version;
CLASSERT (sizeof(msg->ibm_type) == 1);
CLASSERT (sizeof(msg->ibm_credits) == 1);
- msg->ibm_nob = msg_nob;
+ msg->ibm_nob = msg_nob;
__swab64s(&msg->ibm_srcnid);
__swab64s(&msg->ibm_srcstamp);
__swab64s(&msg->ibm_dstnid);
return -EPROTO;
}
+ if (msg_nob < kiblnd_msgtype2size(msg->ibm_type)) {
+ CERROR("Short %s: %d(%d)\n", kiblnd_msgtype2str(msg->ibm_type),
+ msg_nob, kiblnd_msgtype2size(msg->ibm_type));
+ return -EPROTO;
+ }
+
switch (msg->ibm_type) {
default:
CERROR("Unknown message type %x\n", msg->ibm_type);
return -EPROTO;
case IBLND_MSG_NOOP:
- break;
-
case IBLND_MSG_IMMEDIATE:
- if (msg_nob < offsetof(kib_msg_t, ibm_u.immediate.ibim_payload[0])) {
- CERROR("Short IMMEDIATE: %d(%d)\n", msg_nob,
- (int)offsetof(kib_msg_t, ibm_u.immediate.ibim_payload[0]));
- return -EPROTO;
- }
- break;
-
case IBLND_MSG_PUT_REQ:
- if (msg_nob < hdr_size + sizeof(msg->ibm_u.putreq)) {
- CERROR("Short PUT_REQ: %d(%d)\n", msg_nob,
- (int)(hdr_size + sizeof(msg->ibm_u.putreq)));
- return -EPROTO;
- }
break;
case IBLND_MSG_PUT_ACK:
- if (msg_nob < hdr_size + sizeof(msg->ibm_u.putack)) {
- CERROR("Short PUT_ACK: %d(%d)\n", msg_nob,
- (int)(hdr_size + sizeof(msg->ibm_u.putack)));
- return -EPROTO;
- }
-#if IBLND_MAP_ON_DEMAND
- if (flip) {
- __swab64s(&msg->ibm_u.putack.ibpam_rd.rd_addr);
- __swab32s(&msg->ibm_u.putack.ibpam_rd.rd_nob);
- __swab32s(&msg->ibm_u.putack.ibpam_rd.rd_key);
- }
-#else
- if (flip) {
- __swab32s(&msg->ibm_u.putack.ibpam_rd.rd_key);
- __swab32s(&msg->ibm_u.putack.ibpam_rd.rd_nfrags);
- }
-
- n = msg->ibm_u.putack.ibpam_rd.rd_nfrags;
- if (n <= 0 || n > IBLND_MAX_RDMA_FRAGS) {
- CERROR("Bad PUT_ACK nfrags: %d, should be 0 < n <= %d\n",
- n, IBLND_MAX_RDMA_FRAGS);
- return -EPROTO;
- }
-
- if (msg_nob < offsetof(kib_msg_t, ibm_u.putack.ibpam_rd.rd_frags[n])) {
- CERROR("Short PUT_ACK: %d(%d)\n", msg_nob,
- (int)offsetof(kib_msg_t, ibm_u.putack.ibpam_rd.rd_frags[n]));
- return -EPROTO;
- }
-
- if (flip) {
- for (i = 0; i < n; i++) {
- __swab32s(&msg->ibm_u.putack.ibpam_rd.rd_frags[i].rf_nob);
- __swab64s(&msg->ibm_u.putack.ibpam_rd.rd_frags[i].rf_addr);
- }
- }
-#endif
- break;
-
case IBLND_MSG_GET_REQ:
- if (msg_nob < hdr_size + sizeof(msg->ibm_u.get)) {
- CERROR("Short GET_REQ: %d(%d)\n", msg_nob,
- (int)(hdr_size + sizeof(msg->ibm_u.get)));
- return -EPROTO;
- }
-#if IBLND_MAP_ON_DEMAND
- if (flip) {
- __swab64s(&msg->ibm_u.get.ibgm_rd.rd_addr);
- __swab32s(&msg->ibm_u.get.ibgm_rd.rd_nob);
- __swab32s(&msg->ibm_u.get.ibgm_rd.rd_key);
- }
-#else
- if (flip) {
- __swab32s(&msg->ibm_u.get.ibgm_rd.rd_key);
- __swab32s(&msg->ibm_u.get.ibgm_rd.rd_nfrags);
- }
-
- n = msg->ibm_u.get.ibgm_rd.rd_nfrags;
- if (n <= 0 || n > IBLND_MAX_RDMA_FRAGS) {
- CERROR("Bad GET_REQ nfrags: %d, should be 0 < n <= %d\n",
- n, IBLND_MAX_RDMA_FRAGS);
- return -EPROTO;
- }
-
- if (msg_nob < offsetof(kib_msg_t, ibm_u.get.ibgm_rd.rd_frags[n])) {
- CERROR("Short GET_REQ: %d(%d)\n", msg_nob,
- (int)offsetof(kib_msg_t, ibm_u.get.ibgm_rd.rd_frags[n]));
+ if (kiblnd_unpack_rd(msg, flip))
return -EPROTO;
- }
-
- if (flip)
- for (i = 0; i < msg->ibm_u.get.ibgm_rd.rd_nfrags; i++) {
- __swab32s(&msg->ibm_u.get.ibgm_rd.rd_frags[i].rf_nob);
- __swab64s(&msg->ibm_u.get.ibgm_rd.rd_frags[i].rf_addr);
- }
-#endif
break;
case IBLND_MSG_PUT_NAK:
case IBLND_MSG_PUT_DONE:
case IBLND_MSG_GET_DONE:
- if (msg_nob < hdr_size + sizeof(msg->ibm_u.completion)) {
- CERROR("Short RDMA completion: %d(%d)\n", msg_nob,
- (int)(hdr_size + sizeof(msg->ibm_u.completion)));
- return -EPROTO;
- }
if (flip)
__swab32s(&msg->ibm_u.completion.ibcm_status);
break;
case IBLND_MSG_CONNREQ:
case IBLND_MSG_CONNACK:
- if (msg_nob < hdr_size + sizeof(msg->ibm_u.connparams)) {
- CERROR("Short connreq/ack: %d(%d)\n", msg_nob,
- (int)(hdr_size + sizeof(msg->ibm_u.connparams)));
- return -EPROTO;
- }
if (flip) {
__swab16s(&msg->ibm_u.connparams.ibcp_queue_depth);
__swab16s(&msg->ibm_u.connparams.ibcp_max_frags);
peer->ibp_ni = ni;
peer->ibp_nid = nid;
peer->ibp_error = 0;
- peer->ibp_last_alive = cfs_time_current();
+ peer->ibp_last_alive = 0;
atomic_set(&peer->ibp_refcount, 1); /* 1 ref for caller */
INIT_LIST_HEAD(&peer->ibp_list); /* not in the peer table yet */
/* always called with a ref on ni, which prevents ni being shutdown */
LASSERT (net->ibn_shutdown == 0);
-
+
/* npeers only grows with the global lock held */
atomic_inc(&net->ibn_npeers);
atomic_dec(&net->ibn_npeers);
}
-void
-kiblnd_destroy_dev (kib_dev_t *dev)
-{
- LASSERT (dev->ibd_nnets == 0);
-
- if (!list_empty(&dev->ibd_list)) /* on kib_devs? */
- list_del_init(&dev->ibd_list);
-
- if (dev->ibd_mr != NULL)
- ib_dereg_mr(dev->ibd_mr);
-
- if (dev->ibd_pd != NULL)
- ib_dealloc_pd(dev->ibd_pd);
-
- if (dev->ibd_cmid != NULL)
- rdma_destroy_id(dev->ibd_cmid);
-
- LIBCFS_FREE(dev, sizeof(*dev));
-}
-
kib_peer_t *
kiblnd_find_peer_locked (lnet_nid_t nid)
{
if (peer->ibp_nid != nid)
continue;
- CDEBUG(D_NET, "got peer [%p] -> %s (%d)\n",
+ CDEBUG(D_NET, "got peer [%p] -> %s (%d) version: %x\n",
peer, libcfs_nid2str(nid),
- atomic_read(&peer->ibp_refcount));
+ atomic_read(&peer->ibp_refcount),
+ peer->ibp_version);
return peer;
}
return NULL;
spin_lock(&conn->ibc_lock);
- CDEBUG(D_CONSOLE, "conn[%d] %p -> %s: \n",
+ CDEBUG(D_CONSOLE, "conn[%d] %p [version %x] -> %s: \n",
atomic_read(&conn->ibc_refcount), conn,
- libcfs_nid2str(conn->ibc_peer->ibp_nid));
- CDEBUG(D_CONSOLE, " state %d nposted %d cred %d o_cred %d r_cred %d\n",
- conn->ibc_state, conn->ibc_nsends_posted, conn->ibc_credits,
+ conn->ibc_version, libcfs_nid2str(conn->ibc_peer->ibp_nid));
+ CDEBUG(D_CONSOLE, " state %d nposted %d/%d cred %d o_cred %d r_cred %d\n",
+ conn->ibc_state, conn->ibc_noops_posted,
+ conn->ibc_nsends_posted, conn->ibc_credits,
conn->ibc_outstanding_credits, conn->ibc_reserved_credits);
CDEBUG(D_CONSOLE, " comms_err %d\n", conn->ibc_comms_error);
list_for_each(tmp, &conn->ibc_early_rxs)
kiblnd_debug_rx(list_entry(tmp, kib_rx_t, rx_list));
- CDEBUG(D_CONSOLE, " tx_noops:\n");
- list_for_each(tmp, &conn->ibc_tx_noops)
- kiblnd_debug_tx(list_entry(tmp, kib_tx_t, tx_list));
-
CDEBUG(D_CONSOLE, " tx_queue_nocred:\n");
list_for_each(tmp, &conn->ibc_tx_queue_nocred)
kiblnd_debug_tx(list_entry(tmp, kib_tx_t, tx_list));
kiblnd_debug_tx(list_entry(tmp, kib_tx_t, tx_list));
CDEBUG(D_CONSOLE, " rxs:\n");
- for (i = 0; i < IBLND_RX_MSGS; i++)
+ for (i = 0; i < IBLND_RX_MSGS(conn->ibc_version); i++)
kiblnd_debug_rx(&conn->ibc_rxs[i]);
spin_unlock(&conn->ibc_lock);
}
+int
+kiblnd_translate_mtu(int value)
+{
+ switch (value) {
+ default:
+ return -1;
+ case 0:
+ return 0;
+ case 256:
+ return IB_MTU_256;
+ case 512:
+ return IB_MTU_512;
+ case 1024:
+ return IB_MTU_1024;
+ case 2048:
+ return IB_MTU_2048;
+ case 4096:
+ return IB_MTU_4096;
+ }
+}
+
+static void
+kiblnd_setup_mtu(struct rdma_cm_id *cmid)
+{
+ unsigned long flags;
+ int mtu;
+
+ /* XXX There is no path record for iWARP, set by netdev->change_mtu? */
+ if (cmid->route.path_rec == NULL)
+ return;
+
+ write_lock_irqsave(&kiblnd_data.kib_global_lock, flags);
+
+ mtu = kiblnd_translate_mtu(*kiblnd_tunables.kib_ib_mtu);
+ LASSERT (mtu >= 0);
+ if (mtu != 0)
+ cmid->route.path_rec->mtu = mtu;
+
+ write_unlock_irqrestore(&kiblnd_data.kib_global_lock, flags);
+}
+
kib_conn_t *
-kiblnd_create_conn (kib_peer_t *peer, struct rdma_cm_id *cmid, int state)
+kiblnd_create_conn(kib_peer_t *peer, struct rdma_cm_id *cmid,
+ int state, int version)
{
/* CAVEAT EMPTOR:
* If the new conn is created successfully it takes over the caller's
* she must dispose of 'cmid'. (Actually I'd block forever if I tried
* to destroy 'cmid' here since I'm called from the CM which still has
* its ref on 'cmid'). */
- kib_conn_t *conn;
kib_net_t *net = peer->ibp_ni->ni_data;
- int i;
- int page_offset;
- int ipage;
- int rc;
- struct ib_cq *cq;
struct ib_qp_init_attr *init_qp_attr;
+ kib_conn_t *conn;
+ struct ib_cq *cq;
unsigned long flags;
+ int rc;
+ int i;
LASSERT (net != NULL);
LASSERT (!in_interrupt());
memset(conn, 0, sizeof(*conn)); /* zero flags, NULL pointers etc... */
conn->ibc_state = IBLND_CONN_INIT;
+ conn->ibc_version = version;
conn->ibc_peer = peer; /* I take the caller's ref */
cmid->context = conn; /* for future CM callbacks */
conn->ibc_cmid = cmid;
INIT_LIST_HEAD(&conn->ibc_early_rxs);
- INIT_LIST_HEAD(&conn->ibc_tx_noops);
INIT_LIST_HEAD(&conn->ibc_tx_queue);
INIT_LIST_HEAD(&conn->ibc_tx_queue_rsrvd);
INIT_LIST_HEAD(&conn->ibc_tx_queue_nocred);
}
memset(conn->ibc_connvars, 0, sizeof(*conn->ibc_connvars));
- LIBCFS_ALLOC(conn->ibc_rxs, IBLND_RX_MSGS * sizeof(kib_rx_t));
+ LIBCFS_ALLOC(conn->ibc_rxs, IBLND_RX_MSGS(version) * sizeof(kib_rx_t));
if (conn->ibc_rxs == NULL) {
CERROR("Cannot allocate RX buffers\n");
goto failed_2;
}
- memset(conn->ibc_rxs, 0, IBLND_RX_MSGS * sizeof(kib_rx_t));
+ memset(conn->ibc_rxs, 0, IBLND_RX_MSGS(version) * sizeof(kib_rx_t));
- rc = kiblnd_alloc_pages(&conn->ibc_rx_pages, IBLND_RX_MSG_PAGES);
+ rc = kiblnd_alloc_pages(&conn->ibc_rx_pages,
+ IBLND_RX_MSG_PAGES(version));
if (rc != 0)
goto failed_2;
- for (i = ipage = page_offset = 0; i < IBLND_RX_MSGS; i++) {
- struct page *page = conn->ibc_rx_pages->ibp_pages[ipage];
- kib_rx_t *rx = &conn->ibc_rxs[i];
-
- rx->rx_conn = conn;
- rx->rx_msg = (kib_msg_t *)(((char *)page_address(page)) +
- page_offset);
- rx->rx_msgaddr = kiblnd_dma_map_single(cmid->device,
- rx->rx_msg, IBLND_MSG_SIZE,
- DMA_FROM_DEVICE);
- KIBLND_UNMAP_ADDR_SET(rx, rx_msgunmap, rx->rx_msgaddr);
-
- CDEBUG(D_NET,"rx %d: %p "LPX64"("LPX64")\n",
- i, rx->rx_msg, rx->rx_msgaddr,
- lnet_page2phys(page) + page_offset);
-
- page_offset += IBLND_MSG_SIZE;
- LASSERT (page_offset <= PAGE_SIZE);
-
- if (page_offset == PAGE_SIZE) {
- page_offset = 0;
- ipage++;
- LASSERT (ipage <= IBLND_RX_MSG_PAGES);
- }
- }
+ kiblnd_map_rx_descs(conn);
-#if (IBLND_OFED_VERSION == 1025)
+#ifdef HAVE_OFED_IB_COMP_VECTOR
cq = ib_create_cq(cmid->device,
kiblnd_cq_completion, kiblnd_cq_event, conn,
- IBLND_CQ_ENTRIES(), 0);
+ IBLND_CQ_ENTRIES(version), 0);
#else
cq = ib_create_cq(cmid->device,
kiblnd_cq_completion, kiblnd_cq_event, conn,
- IBLND_CQ_ENTRIES());
+ IBLND_CQ_ENTRIES(version));
#endif
- if (!IS_ERR(cq)) {
- conn->ibc_cq = cq;
- } else {
- CERROR("Can't create CQ: %ld\n", PTR_ERR(cq));
+ if (IS_ERR(cq)) {
+ CERROR("Can't create CQ: %ld, cqe: %d\n",
+ PTR_ERR(cq), IBLND_CQ_ENTRIES(version));
goto failed_2;
}
+ conn->ibc_cq = cq;
+
rc = ib_req_notify_cq(cq, IB_CQ_NEXT_COMP);
if (rc != 0) {
CERROR("Can't request completion notificiation: %d\n", rc);
goto failed_2;
}
-
+
+ kiblnd_setup_mtu(cmid);
+
memset(init_qp_attr, 0, sizeof(*init_qp_attr));
init_qp_attr->event_handler = kiblnd_qp_event;
init_qp_attr->qp_context = conn;
- init_qp_attr->cap.max_send_wr = IBLND_SEND_WRS;
- init_qp_attr->cap.max_recv_wr = IBLND_RECV_WRS;
+ init_qp_attr->cap.max_send_wr = IBLND_SEND_WRS(version);
+ init_qp_attr->cap.max_recv_wr = IBLND_RECV_WRS(version);
init_qp_attr->cap.max_send_sge = 1;
init_qp_attr->cap.max_recv_sge = 1;
init_qp_attr->sq_sig_type = IB_SIGNAL_REQ_WR;
init_qp_attr->send_cq = cq;
init_qp_attr->recv_cq = cq;
- rc = 0;
- write_lock_irqsave(&kiblnd_data.kib_global_lock, flags);
- switch (*kiblnd_tunables.kib_ib_mtu) {
- default:
- rc = *kiblnd_tunables.kib_ib_mtu;
- /* fall through to... */
- case 0: /* set tunable to the default
- * CAVEAT EMPTOR! this assumes the default is one of the MTUs
- * below, otherwise we'll WARN on the next QP create */
- *kiblnd_tunables.kib_ib_mtu =
- ib_mtu_enum_to_int(cmid->route.path_rec->mtu);
- break;
- case 256:
- cmid->route.path_rec->mtu = IB_MTU_256;
- break;
- case 512:
- cmid->route.path_rec->mtu = IB_MTU_512;
- break;
- case 1024:
- cmid->route.path_rec->mtu = IB_MTU_1024;
- break;
- case 2048:
- cmid->route.path_rec->mtu = IB_MTU_2048;
- break;
- case 4096:
- cmid->route.path_rec->mtu = IB_MTU_4096;
- break;
- }
- write_unlock_irqrestore(&kiblnd_data.kib_global_lock, flags);
-
- if (rc != 0)
- CWARN("Invalid IB MTU value %d, using default value %d\n",
- rc, *kiblnd_tunables.kib_ib_mtu);
-
rc = rdma_create_qp(cmid, net->ibn_dev->ibd_pd, init_qp_attr);
if (rc != 0) {
- CERROR("Can't create QP: %d\n", rc);
+ CERROR("Can't create QP: %d, send_wr: %d, recv_wr: %d\n",
+ rc, init_qp_attr->cap.max_send_wr,
+ init_qp_attr->cap.max_recv_wr);
goto failed_2;
}
LIBCFS_FREE(init_qp_attr, sizeof(*init_qp_attr));
/* 1 ref for caller and each rxmsg */
- atomic_set(&conn->ibc_refcount, 1 + IBLND_RX_MSGS);
- conn->ibc_nrx = IBLND_RX_MSGS;
+ atomic_set(&conn->ibc_refcount, 1 + IBLND_RX_MSGS(version));
+ conn->ibc_nrx = IBLND_RX_MSGS(version);
/* post receives */
- for (i = 0; i < IBLND_RX_MSGS; i++) {
+ for (i = 0; i < IBLND_RX_MSGS(version); i++) {
rc = kiblnd_post_rx(&conn->ibc_rxs[i],
IBLND_POSTRX_NO_CREDIT);
if (rc != 0) {
/* correct # of posted buffers
* NB locking needed now I'm racing with completion */
spin_lock_irqsave(&kiblnd_data.kib_sched_lock, flags);
- conn->ibc_nrx -= IBLND_RX_MSGS - i;
+ conn->ibc_nrx -= IBLND_RX_MSGS(version) - i;
spin_unlock_irqrestore(&kiblnd_data.kib_sched_lock,
flags);
+ /* cmid will be destroyed by CM(ofed) after cm_callback
+ * returned, so we can't refer it anymore
+ * (by kiblnd_connd()->kiblnd_destroy_conn) */
+ rdma_destroy_qp(conn->ibc_cmid);
+ conn->ibc_cmid = NULL;
+
/* Drop my own and unused rxbuffer refcounts */
- while (i++ <= IBLND_RX_MSGS)
+ while (i++ <= IBLND_RX_MSGS(version))
kiblnd_conn_decref(conn);
return NULL;
}
}
-
+
/* Init successful! */
LASSERT (state == IBLND_CONN_ACTIVE_CONNECT ||
state == IBLND_CONN_PASSIVE_WAIT);
struct rdma_cm_id *cmid = conn->ibc_cmid;
kib_peer_t *peer = conn->ibc_peer;
int rc;
- int i;
LASSERT (!in_interrupt());
LASSERT (atomic_read(&conn->ibc_refcount) == 0);
LASSERT (list_empty(&conn->ibc_early_rxs));
- LASSERT (list_empty(&conn->ibc_tx_noops));
LASSERT (list_empty(&conn->ibc_tx_queue));
LASSERT (list_empty(&conn->ibc_tx_queue_rsrvd));
LASSERT (list_empty(&conn->ibc_tx_queue_nocred));
LASSERT (list_empty(&conn->ibc_active_txs));
+ LASSERT (conn->ibc_noops_posted == 0);
LASSERT (conn->ibc_nsends_posted == 0);
switch (conn->ibc_state) {
break;
}
- if (conn->ibc_cmid->qp != NULL)
- rdma_destroy_qp(conn->ibc_cmid);
+ /* conn->ibc_cmid might be destroyed by CM already */
+ if (cmid != NULL && cmid->qp != NULL)
+ rdma_destroy_qp(cmid);
if (conn->ibc_cq != NULL) {
rc = ib_destroy_cq(conn->ibc_cq);
CWARN("Error destroying CQ: %d\n", rc);
}
- if (conn->ibc_rx_pages != NULL) {
- LASSERT (conn->ibc_rxs != NULL);
-
- for (i = 0; i < IBLND_RX_MSGS; i++) {
- kib_rx_t *rx = &conn->ibc_rxs[i];
-
- LASSERT (rx->rx_nob >= 0); /* not posted */
-
- kiblnd_dma_unmap_single(conn->ibc_cmid->device,
- KIBLND_UNMAP_ADDR(rx, rx_msgunmap,
- rx->rx_msgaddr),
- IBLND_MSG_SIZE, DMA_FROM_DEVICE);
- }
-
- kiblnd_free_pages(conn->ibc_rx_pages);
- }
+ if (conn->ibc_rx_pages != NULL)
+ kiblnd_unmap_rx_descs(conn);
if (conn->ibc_rxs != NULL) {
LIBCFS_FREE(conn->ibc_rxs,
- IBLND_RX_MSGS * sizeof(kib_rx_t));
+ IBLND_RX_MSGS(conn->ibc_version) * sizeof(kib_rx_t));
}
if (conn->ibc_connvars != NULL)
list_for_each_safe (ctmp, cnxt, &peer->ibp_conns) {
conn = list_entry(ctmp, kib_conn_t, ibc_list);
- count++;
+ CDEBUG(D_NET, "Closing conn -> %s, "
+ "version: %x, reason: %d\n",
+ libcfs_nid2str(peer->ibp_nid),
+ conn->ibc_version, why);
+
kiblnd_close_conn_locked(conn, why);
+ count++;
}
return count;
}
int
-kiblnd_close_stale_conns_locked (kib_peer_t *peer, __u64 incarnation)
+kiblnd_close_stale_conns_locked (kib_peer_t *peer,
+ int version, __u64 incarnation)
{
kib_conn_t *conn;
struct list_head *ctmp;
list_for_each_safe (ctmp, cnxt, &peer->ibp_conns) {
conn = list_entry(ctmp, kib_conn_t, ibc_list);
- if (conn->ibc_incarnation == incarnation)
+ if (conn->ibc_version == version &&
+ conn->ibc_incarnation == incarnation)
continue;
- CDEBUG(D_NET, "Closing stale conn -> %s incarnation:"LPX64"("LPX64")\n",
+ CDEBUG(D_NET, "Closing stale conn -> %s version: %x, "
+ "incarnation:"LPX64"(%x, "LPX64")\n",
libcfs_nid2str(peer->ibp_nid),
- conn->ibc_incarnation, incarnation);
+ conn->ibc_version, conn->ibc_incarnation,
+ version, incarnation);
- count++;
kiblnd_close_conn_locked(conn, -ESTALE);
+ count++;
}
return count;
break;
}
case IOC_LIBCFS_GET_CONN: {
- kib_conn_t *conn = kiblnd_get_conn_by_idx(ni, data->ioc_count);
+ kib_conn_t *conn;
+ rc = 0;
+ conn = kiblnd_get_conn_by_idx(ni, data->ioc_count);
if (conn == NULL) {
rc = -ENOENT;
- } else {
- // kiblnd_debug_conn(conn);
- rc = 0;
- data->ioc_nid = conn->ibc_peer->ibp_nid;
- kiblnd_conn_decref(conn);
+ break;
}
+
+ LASSERT (conn->ibc_cmid != NULL);
+ data->ioc_nid = conn->ibc_peer->ibp_nid;
+ if (conn->ibc_cmid->route.path_rec == NULL)
+ data->ioc_u32[0] = 0; /* iWarp has no path MTU */
+ else
+ data->ioc_u32[0] =
+ ib_mtu_enum_to_int(conn->ibc_cmid->route.path_rec->mtu);
+ kiblnd_conn_decref(conn);
break;
}
case IOC_LIBCFS_CLOSE_CONNECTION: {
}
void
+kiblnd_query (lnet_ni_t *ni, lnet_nid_t nid, time_t *when)
+{
+ cfs_time_t last_alive = 0;
+ rwlock_t *glock = &kiblnd_data.kib_global_lock;
+ kib_peer_t *peer;
+ unsigned long flags;
+
+ read_lock_irqsave(glock, flags);
+
+ peer = kiblnd_find_peer_locked(nid);
+ if (peer != NULL) {
+ LASSERT (peer->ibp_connecting > 0 || /* creating conns */
+ peer->ibp_accepting > 0 ||
+ !list_empty(&peer->ibp_conns)); /* active conn */
+ last_alive = peer->ibp_last_alive;
+ }
+
+ read_unlock_irqrestore(glock, flags);
+
+ if (last_alive != 0)
+ *when = cfs_time_current_sec() -
+ cfs_duration_sec(cfs_time_current() - last_alive);
+
+ /* peer is not persistent in hash, trigger peer creation
+ * and connection establishment with a NULL tx */
+ if (peer == NULL)
+ kiblnd_launch_tx(ni, NULL, nid);
+ return;
+}
+
+void
kiblnd_free_pages (kib_pages_t *p)
{
int npages = p->ibp_npages;
int i;
+ LASSERT (p->ibp_device == NULL);
+
for (i = 0; i < npages; i++)
if (p->ibp_pages[i] != NULL)
__free_page(p->ibp_pages[i]);
}
void
-kiblnd_free_tx_descs (lnet_ni_t *ni)
+kiblnd_unmap_rx_descs(kib_conn_t *conn)
{
- int i;
- kib_net_t *net = ni->ni_data;
+ kib_rx_t *rx;
+ int i;
- LASSERT (net != NULL);
+ LASSERT (conn->ibc_rxs != NULL);
+ LASSERT (conn->ibc_rx_pages->ibp_device != NULL);
- if (net->ibn_tx_descs != NULL) {
- for (i = 0; i < IBLND_TX_MSGS(); i++) {
- kib_tx_t *tx = &net->ibn_tx_descs[i];
+ for (i = 0; i < IBLND_RX_MSGS(conn->ibc_version); i++) {
+ rx = &conn->ibc_rxs[i];
-#if IBLND_MAP_ON_DEMAND
- if (tx->tx_pages != NULL)
- LIBCFS_FREE(tx->tx_pages, LNET_MAX_IOV *
- sizeof(*tx->tx_pages));
-#else
- if (tx->tx_wrq != NULL)
- LIBCFS_FREE(tx->tx_wrq,
- (1 + IBLND_MAX_RDMA_FRAGS) *
- sizeof(*tx->tx_wrq));
-
- if (tx->tx_sge != NULL)
- LIBCFS_FREE(tx->tx_sge,
- (1 + IBLND_MAX_RDMA_FRAGS) *
- sizeof(*tx->tx_sge));
-
- if (tx->tx_rd != NULL)
- LIBCFS_FREE(tx->tx_rd,
- offsetof(kib_rdma_desc_t,
- rd_frags[IBLND_MAX_RDMA_FRAGS]));
-
- if (tx->tx_frags != NULL)
- LIBCFS_FREE(tx->tx_frags,
- IBLND_MAX_RDMA_FRAGS *
- sizeof(*tx->tx_frags));
-#endif
+ LASSERT (rx->rx_nob >= 0); /* not posted */
+
+ kiblnd_dma_unmap_single(conn->ibc_rx_pages->ibp_device,
+ KIBLND_UNMAP_ADDR(rx, rx_msgunmap,
+ rx->rx_msgaddr),
+ IBLND_MSG_SIZE, DMA_FROM_DEVICE);
+ }
+
+ conn->ibc_rx_pages->ibp_device = NULL;
+
+ kiblnd_free_pages(conn->ibc_rx_pages);
+
+ conn->ibc_rx_pages = NULL;
+}
+
+void
+kiblnd_map_rx_descs(kib_conn_t *conn)
+{
+ kib_rx_t *rx;
+ struct page *pg;
+ int pg_off;
+ int ipg;
+ int i;
+
+ for (pg_off = ipg = i = 0;
+ i < IBLND_RX_MSGS(conn->ibc_version); i++) {
+ pg = conn->ibc_rx_pages->ibp_pages[ipg];
+ rx = &conn->ibc_rxs[i];
+
+ rx->rx_conn = conn;
+ rx->rx_msg = (kib_msg_t *)(((char *)page_address(pg)) + pg_off);
+
+ rx->rx_msgaddr = kiblnd_dma_map_single(conn->ibc_cmid->device,
+ rx->rx_msg, IBLND_MSG_SIZE,
+ DMA_FROM_DEVICE);
+ LASSERT (!kiblnd_dma_mapping_error(conn->ibc_cmid->device,
+ rx->rx_msgaddr));
+ KIBLND_UNMAP_ADDR_SET(rx, rx_msgunmap, rx->rx_msgaddr);
+
+ CDEBUG(D_NET,"rx %d: %p "LPX64"("LPX64")\n",
+ i, rx->rx_msg, rx->rx_msgaddr,
+ lnet_page2phys(pg) + pg_off);
+
+ pg_off += IBLND_MSG_SIZE;
+ LASSERT (pg_off <= PAGE_SIZE);
+
+ if (pg_off == PAGE_SIZE) {
+ pg_off = 0;
+ ipg++;
+ LASSERT (ipg <= IBLND_RX_MSG_PAGES(conn->ibc_version));
}
+ }
+
+ conn->ibc_rx_pages->ibp_device = conn->ibc_cmid->device;
+}
+
+void
+kiblnd_unmap_tx_descs(lnet_ni_t *ni)
+{
+ int i;
+ kib_tx_t *tx;
+ kib_net_t *net = ni->ni_data;
+
+ LASSERT (net->ibn_tx_pages != NULL);
+ LASSERT (net->ibn_tx_pages->ibp_device != NULL);
+
+ for (i = 0; i < IBLND_TX_MSGS(); i++) {
+ tx = &net->ibn_tx_descs[i];
+
+ kiblnd_dma_unmap_single(net->ibn_tx_pages->ibp_device,
+ KIBLND_UNMAP_ADDR(tx, tx_msgunmap,
+ tx->tx_msgaddr),
+ IBLND_MSG_SIZE, DMA_TO_DEVICE);
+ }
+
+ net->ibn_tx_pages->ibp_device = NULL;
+}
- LIBCFS_FREE(net->ibn_tx_descs,
- IBLND_TX_MSGS() * sizeof(kib_tx_t));
+void
+kiblnd_map_tx_descs (lnet_ni_t *ni)
+{
+ kib_net_t *net = ni->ni_data;
+ struct page *page;
+ kib_tx_t *tx;
+ int page_offset;
+ int ipage;
+ int i;
+
+ LASSERT (net != NULL);
+
+ /* pre-mapped messages are not bigger than 1 page */
+ CLASSERT (IBLND_MSG_SIZE <= PAGE_SIZE);
+
+ /* No fancy arithmetic when we do the buffer calculations */
+ CLASSERT (PAGE_SIZE % IBLND_MSG_SIZE == 0);
+
+
+ for (ipage = page_offset = i = 0; i < IBLND_TX_MSGS(); i++) {
+ page = net->ibn_tx_pages->ibp_pages[ipage];
+ tx = &net->ibn_tx_descs[i];
+
+ tx->tx_msg = (kib_msg_t *)(((char *)page_address(page)) +
+ page_offset);
+
+ tx->tx_msgaddr = kiblnd_dma_map_single(
+ net->ibn_dev->ibd_cmid->device,
+ tx->tx_msg, IBLND_MSG_SIZE, DMA_TO_DEVICE);
+ LASSERT (!kiblnd_dma_mapping_error(net->ibn_dev->ibd_cmid->device,
+ tx->tx_msgaddr));
+ KIBLND_UNMAP_ADDR_SET(tx, tx_msgunmap, tx->tx_msgaddr);
+
+ list_add(&tx->tx_list, &net->ibn_idle_txs);
+
+ page_offset += IBLND_MSG_SIZE;
+ LASSERT (page_offset <= PAGE_SIZE);
+
+ if (page_offset == PAGE_SIZE) {
+ page_offset = 0;
+ ipage++;
+ LASSERT (ipage <= IBLND_TX_MSG_PAGES());
+ }
}
+ net->ibn_tx_pages->ibp_device = net->ibn_dev->ibd_cmid->device;
+}
+
+void
+kiblnd_free_tx_descs (lnet_ni_t *ni)
+{
+ int i;
+ kib_net_t *net = ni->ni_data;
+
+ LASSERT (net != NULL);
+
if (net->ibn_tx_pages != NULL)
kiblnd_free_pages(net->ibn_tx_pages);
+
+ if (net->ibn_tx_descs == NULL)
+ return;
+
+ for (i = 0; i < IBLND_TX_MSGS(); i++) {
+ kib_tx_t *tx = &net->ibn_tx_descs[i];
+
+ if (tx->tx_pages != NULL)
+ LIBCFS_FREE(tx->tx_pages,
+ LNET_MAX_IOV *
+ sizeof(*tx->tx_pages));
+
+ if (tx->tx_ipb != NULL)
+ LIBCFS_FREE(tx->tx_ipb,
+ IBLND_MAX_RDMA_FRAGS *
+ sizeof(*tx->tx_ipb));
+
+ if (tx->tx_frags != NULL)
+ LIBCFS_FREE(tx->tx_frags,
+ IBLND_MAX_RDMA_FRAGS *
+ sizeof(*tx->tx_frags));
+
+ if (tx->tx_wrq != NULL)
+ LIBCFS_FREE(tx->tx_wrq,
+ (1 + IBLND_MAX_RDMA_FRAGS) *
+ sizeof(*tx->tx_wrq));
+
+ if (tx->tx_sge != NULL)
+ LIBCFS_FREE(tx->tx_sge,
+ (1 + IBLND_MAX_RDMA_FRAGS) *
+ sizeof(*tx->tx_sge));
+
+ if (tx->tx_rd != NULL)
+ LIBCFS_FREE(tx->tx_rd,
+ offsetof(kib_rdma_desc_t,
+ rd_frags[IBLND_MAX_RDMA_FRAGS]));
+ }
+
+ LIBCFS_FREE(net->ibn_tx_descs,
+ IBLND_TX_MSGS() * sizeof(kib_tx_t));
}
int
for (i = 0; i < IBLND_TX_MSGS(); i++) {
kib_tx_t *tx = &net->ibn_tx_descs[i];
-#if IBLND_MAP_ON_DEMAND
- LIBCFS_ALLOC(tx->tx_pages, LNET_MAX_IOV *
- sizeof(*tx->tx_pages));
- if (tx->tx_pages == NULL) {
- CERROR("Can't allocate phys page vector[%d]\n",
- LNET_MAX_IOV);
- return -ENOMEM;
+ if (net->ibn_fmrpool != NULL) {
+ LIBCFS_ALLOC(tx->tx_pages, LNET_MAX_IOV *
+ sizeof(*tx->tx_pages));
+ if (tx->tx_pages == NULL)
+ return -ENOMEM;
}
-#else
+
+ if (net->ibn_pmrpool != NULL) {
+ LIBCFS_ALLOC(tx->tx_ipb,
+ IBLND_MAX_RDMA_FRAGS *
+ sizeof(*tx->tx_ipb));
+ if (tx->tx_ipb == NULL)
+ return -ENOMEM;
+ }
+
+ LIBCFS_ALLOC(tx->tx_frags,
+ IBLND_MAX_RDMA_FRAGS *
+ sizeof(*tx->tx_frags));
+ if (tx->tx_frags == NULL)
+ return -ENOMEM;
+
LIBCFS_ALLOC(tx->tx_wrq,
(1 + IBLND_MAX_RDMA_FRAGS) *
sizeof(*tx->tx_wrq));
rd_frags[IBLND_MAX_RDMA_FRAGS]));
if (tx->tx_rd == NULL)
return -ENOMEM;
+ }
- LIBCFS_ALLOC(tx->tx_frags,
- IBLND_MAX_RDMA_FRAGS *
- sizeof(*tx->tx_frags));
- if (tx->tx_frags == NULL)
- return -ENOMEM;
-#endif
+ return 0;
+}
+
+struct ib_mr *
+kiblnd_find_dma_mr(kib_net_t *net, __u64 addr, __u64 size)
+{
+ __u64 index;
+
+ LASSERT (net->ibn_dev->ibd_mrs[0] != NULL);
+
+ if (net->ibn_dev->ibd_nmrs == 1)
+ return net->ibn_dev->ibd_mrs[0];
+
+ index = addr >> net->ibn_dev->ibd_mr_shift;
+
+ if (index < net->ibn_dev->ibd_nmrs &&
+ index == ((addr + size - 1) >> net->ibn_dev->ibd_mr_shift))
+ return net->ibn_dev->ibd_mrs[index];
+
+ return NULL;
+}
+
+struct ib_mr *
+kiblnd_find_rd_dma_mr(kib_net_t *net, kib_rdma_desc_t *rd)
+{
+ struct ib_mr *prev_mr;
+ struct ib_mr *mr;
+ int i;
+
+ LASSERT (net->ibn_dev->ibd_mrs[0] != NULL);
+
+ if (*kiblnd_tunables.kib_map_on_demand > 0 &&
+ *kiblnd_tunables.kib_map_on_demand <= rd->rd_nfrags)
+ return NULL;
+
+ if (net->ibn_dev->ibd_nmrs == 1)
+ return net->ibn_dev->ibd_mrs[0];
+
+ for (i = 0, mr = prev_mr = NULL;
+ i < rd->rd_nfrags; i++) {
+ mr = kiblnd_find_dma_mr(net,
+ rd->rd_frags[i].rf_addr,
+ rd->rd_frags[i].rf_nob);
+ if (prev_mr == NULL)
+ prev_mr = mr;
+
+ if (mr == NULL || prev_mr != mr) {
+ /* Can't covered by one single MR */
+ mr = NULL;
+ break;
+ }
+ }
+
+ return mr;
+}
+
+void
+kiblnd_dev_cleanup(kib_dev_t *ibdev)
+{
+ int i;
+
+ if (ibdev->ibd_mrs == NULL)
+ return;
+
+ for (i = 0; i < ibdev->ibd_nmrs; i++) {
+ if (ibdev->ibd_mrs[i] == NULL)
+ break;
+
+ ib_dereg_mr(ibdev->ibd_mrs[i]);
+ }
+
+ LIBCFS_FREE(ibdev->ibd_mrs, sizeof(*ibdev->ibd_mrs) * ibdev->ibd_nmrs);
+ ibdev->ibd_mrs = NULL;
+}
+
+int
+kiblnd_ib_create_fmr_pool(kib_dev_t *ibdev, struct ib_fmr_pool **fmrpp)
+{
+ /* FMR pool for RDMA */
+ struct ib_fmr_pool *fmrpool;
+ struct ib_fmr_pool_param param = {
+ .max_pages_per_fmr = LNET_MAX_PAYLOAD/PAGE_SIZE,
+ .page_shift = PAGE_SHIFT,
+ .access = (IB_ACCESS_LOCAL_WRITE |
+ IB_ACCESS_REMOTE_WRITE),
+ .pool_size = *kiblnd_tunables.kib_fmr_pool_size,
+ .dirty_watermark = *kiblnd_tunables.kib_fmr_flush_trigger,
+ .flush_function = NULL,
+ .flush_arg = NULL,
+ .cache = *kiblnd_tunables.kib_fmr_cache};
+
+ if (*kiblnd_tunables.kib_fmr_pool_size <
+ *kiblnd_tunables.kib_ntx) {
+ CERROR("Can't set fmr pool size (%d) < ntx(%d)\n",
+ *kiblnd_tunables.kib_fmr_pool_size,
+ *kiblnd_tunables.kib_ntx);
+ return -EINVAL;
}
+ fmrpool = ib_create_fmr_pool(ibdev->ibd_pd, ¶m);
+ if (IS_ERR(fmrpool))
+ return PTR_ERR(fmrpool);
+
+ *fmrpp = fmrpool;
+
return 0;
}
void
-kiblnd_unmap_tx_descs (lnet_ni_t *ni)
+kiblnd_phys_mr_unmap(kib_net_t *net, kib_phys_mr_t *pmr)
{
- int i;
- kib_tx_t *tx;
- kib_net_t *net = ni->ni_data;
+ kib_phys_mr_pool_t *pool = net->ibn_pmrpool;
+ struct ib_mr *mr;
- LASSERT (net != NULL);
+ spin_lock(&pool->ibmp_lock);
- for (i = 0; i < IBLND_TX_MSGS(); i++) {
- tx = &net->ibn_tx_descs[i];
+ mr = pmr->ibpm_mr;
- kiblnd_dma_unmap_single(net->ibn_dev->ibd_cmid->device,
- KIBLND_UNMAP_ADDR(tx, tx_msgunmap,
- tx->tx_msgaddr),
- IBLND_MSG_SIZE, DMA_TO_DEVICE);
+ list_add(&pmr->ibpm_link, &pool->ibmp_free_list);
+ pool->ibmp_allocated --;
+
+ spin_unlock(&pool->ibmp_lock);
+
+ if (mr != NULL)
+ ib_dereg_mr(mr);
+}
+
+kib_phys_mr_t *
+kiblnd_phys_mr_map(kib_net_t *net, kib_rdma_desc_t *rd,
+ struct ib_phys_buf *ipb, __u64 *iova)
+{
+ kib_phys_mr_pool_t *pool = net->ibn_pmrpool;
+ kib_phys_mr_t *pmr;
+ int i;
+
+ LASSERT (ipb != NULL);
+
+ spin_lock(&pool->ibmp_lock);
+ if (list_empty(&pool->ibmp_free_list)) {
+ spin_unlock(&pool->ibmp_lock);
+ CERROR("pre-allocated MRs is not enough\n");
+
+ return NULL;
+ }
+
+ pmr = list_entry(pool->ibmp_free_list.next,
+ kib_phys_mr_t, ibpm_link);
+ list_del_init(&pmr->ibpm_link);
+ pool->ibmp_allocated ++;
+
+ spin_unlock(&pool->ibmp_lock);
+
+ for (i = 0; i < rd->rd_nfrags; i ++) {
+ ipb[i].addr = rd->rd_frags[i].rf_addr;
+ ipb[i].size = rd->rd_frags[i].rf_nob;
}
+
+ pmr->ibpm_mr = ib_reg_phys_mr(net->ibn_dev->ibd_pd, ipb,
+ rd->rd_nfrags,
+ IB_ACCESS_LOCAL_WRITE |
+ IB_ACCESS_REMOTE_WRITE,
+ iova);
+ if (!IS_ERR(pmr->ibpm_mr)) {
+ pmr->ibpm_iova = *iova;
+ return pmr;
+ }
+
+ CERROR("Failed ib_reg_phys_mr: %ld\n", PTR_ERR(pmr->ibpm_mr));
+ pmr->ibpm_mr = NULL;
+
+ spin_lock(&pool->ibmp_lock);
+
+ list_add(&pmr->ibpm_link, &pool->ibmp_free_list);
+ pool->ibmp_allocated --;
+
+ spin_unlock(&pool->ibmp_lock);
+
+ return NULL;
}
void
-kiblnd_map_tx_descs (lnet_ni_t *ni)
+kiblnd_destroy_pmr_pool(kib_phys_mr_pool_t *pool)
{
- int ipage = 0;
- int page_offset = 0;
- int i;
- struct page *page;
- kib_tx_t *tx;
- kib_net_t *net = ni->ni_data;
+ kib_phys_mr_t *pmr;
- LASSERT (net != NULL);
+ LASSERT (pool->ibmp_allocated == 0);
- /* pre-mapped messages are not bigger than 1 page */
- CLASSERT (IBLND_MSG_SIZE <= PAGE_SIZE);
+ while (!list_empty(&pool->ibmp_free_list)) {
+ pmr = list_entry(pool->ibmp_free_list.next,
+ kib_phys_mr_t, ibpm_link);
- /* No fancy arithmetic when we do the buffer calculations */
- CLASSERT (PAGE_SIZE % IBLND_MSG_SIZE == 0);
+ LASSERT (pmr->ibpm_mr == NULL);
- for (i = 0; i < IBLND_TX_MSGS(); i++) {
- page = net->ibn_tx_pages->ibp_pages[ipage];
- tx = &net->ibn_tx_descs[i];
+ list_del(&pmr->ibpm_link);
- tx->tx_msg = (kib_msg_t *)(((char *)page_address(page)) +
- page_offset);
+ LIBCFS_FREE(pmr, sizeof(kib_phys_mr_t));
+ }
- tx->tx_msgaddr = kiblnd_dma_map_single(
- net->ibn_dev->ibd_cmid->device,
- tx->tx_msg, IBLND_MSG_SIZE, DMA_TO_DEVICE);
- KIBLND_UNMAP_ADDR_SET(tx, tx_msgunmap, tx->tx_msgaddr);
+ LIBCFS_FREE(pool, sizeof(kib_phys_mr_pool_t));
+}
- list_add(&tx->tx_list, &net->ibn_idle_txs);
+int
+kiblnd_create_pmr_pool(kib_dev_t *ibdev, kib_phys_mr_pool_t **poolpp)
+{
+ kib_phys_mr_pool_t *pool;
+ kib_phys_mr_t *pmr;
+ int i;
+
+ if (*kiblnd_tunables.kib_pmr_pool_size <
+ *kiblnd_tunables.kib_ntx) {
+ CERROR("Can't set pmr pool size (%d) < ntx(%d)\n",
+ *kiblnd_tunables.kib_pmr_pool_size,
+ *kiblnd_tunables.kib_ntx);
+ return -EINVAL;
+ }
- page_offset += IBLND_MSG_SIZE;
- LASSERT (page_offset <= PAGE_SIZE);
+ LIBCFS_ALLOC(pool, sizeof(kib_phys_mr_pool_t));
+ if (pool == NULL)
+ return -ENOMEM;
- if (page_offset == PAGE_SIZE) {
- page_offset = 0;
- ipage++;
- LASSERT (ipage <= IBLND_TX_MSG_PAGES());
+ spin_lock_init(&pool->ibmp_lock);
+
+ pool->ibmp_allocated = 0;
+ CFS_INIT_LIST_HEAD(&pool->ibmp_free_list);
+
+ for (i = 0; i < *kiblnd_tunables.kib_pmr_pool_size; i++) {
+ LIBCFS_ALLOC(pmr, sizeof(kib_phys_mr_t));
+
+ if (pmr == NULL) {
+ kiblnd_destroy_pmr_pool(pool);
+ return -ENOMEM;
+ }
+
+ memset(pmr, 0, sizeof(kib_phys_mr_t));
+
+ list_add(&pmr->ibpm_link, &pool->ibmp_free_list);
+ }
+
+ *poolpp = pool;
+
+ return 0;
+}
+
+static int
+kiblnd_dev_get_attr(kib_dev_t *ibdev)
+{
+ struct ib_device_attr *attr;
+ int rc;
+
+ /* XXX here should be HCA's page shift/size/mask in the future? */
+ ibdev->ibd_page_shift = PAGE_SHIFT;
+ ibdev->ibd_page_size = 1 << PAGE_SHIFT;
+ ibdev->ibd_page_mask = ~((__u64)ibdev->ibd_page_size - 1);
+
+ LIBCFS_ALLOC(attr, sizeof(*attr));
+ if (attr == NULL) {
+ CERROR("Out of memory\n");
+ return -ENOMEM;
+ }
+
+ rc = ib_query_device(ibdev->ibd_cmid->device, attr);
+ if (rc == 0)
+ ibdev->ibd_mr_size = attr->max_mr_size;
+
+ LIBCFS_FREE(attr, sizeof(*attr));
+
+ if (rc != 0) {
+ CERROR("Failed to query IB device: %d\n", rc);
+ return rc;
+ }
+
+#ifdef HAVE_OFED_TRANSPORT_IWARP
+ /* XXX We can't trust this value returned by Chelsio driver, it's wrong
+ * and we have reported the bug, remove these in the future when Chelsio
+ * bug got fixed. */
+ if (rdma_node_get_transport(ibdev->ibd_cmid->device->node_type) ==
+ RDMA_TRANSPORT_IWARP)
+ ibdev->ibd_mr_size = (1ULL << 32) - 1;
+#endif
+
+ if (ibdev->ibd_mr_size == ~0ULL) {
+ ibdev->ibd_mr_shift = 64;
+ return 0;
+ }
+
+ for (ibdev->ibd_mr_shift = 0;
+ ibdev->ibd_mr_shift < 64; ibdev->ibd_mr_shift ++) {
+ if (ibdev->ibd_mr_size == (1ULL << ibdev->ibd_mr_shift) ||
+ ibdev->ibd_mr_size == (1ULL << ibdev->ibd_mr_shift) - 1)
+ return 0;
+ }
+
+ CERROR("Invalid mr size: "LPX64"\n", ibdev->ibd_mr_size);
+ return -EINVAL;
+}
+
+int
+kiblnd_dev_setup(kib_dev_t *ibdev)
+{
+ struct ib_mr *mr;
+ int i;
+ int rc;
+ __u64 mm_size;
+ __u64 mr_size;
+ int acflags = IB_ACCESS_LOCAL_WRITE |
+ IB_ACCESS_REMOTE_WRITE;
+
+ rc = kiblnd_dev_get_attr(ibdev);
+ if (rc != 0)
+ return rc;
+
+ if (ibdev->ibd_mr_shift == 64) {
+ LIBCFS_ALLOC(ibdev->ibd_mrs, 1 * sizeof(*ibdev->ibd_mrs));
+ if (ibdev->ibd_mrs == NULL) {
+ CERROR("Failed to allocate MRs table\n");
+ return -ENOMEM;
}
+
+ ibdev->ibd_mrs[0] = NULL;
+ ibdev->ibd_nmrs = 1;
+
+ mr = ib_get_dma_mr(ibdev->ibd_pd, acflags);
+ if (IS_ERR(mr)) {
+ CERROR("Failed ib_get_dma_mr : %ld\n", PTR_ERR(mr));
+ kiblnd_dev_cleanup(ibdev);
+ return PTR_ERR(mr);
+ }
+
+ ibdev->ibd_mrs[0] = mr;
+
+ goto out;
+ }
+
+ mr_size = (1ULL << ibdev->ibd_mr_shift);
+ mm_size = (unsigned long)high_memory - PAGE_OFFSET;
+
+ ibdev->ibd_nmrs = (int)((mm_size + mr_size - 1) >> ibdev->ibd_mr_shift);
+
+ if (ibdev->ibd_mr_shift < 32 || ibdev->ibd_nmrs > 1024) {
+ /* it's 4T..., assume we will re-code at that time */
+ CERROR("Can't support memory size: x"LPX64
+ " with MR size: x"LPX64"\n", mm_size, mr_size);
+ return -EINVAL;
}
+
+ /* create an array of MRs to cover all memory */
+ LIBCFS_ALLOC(ibdev->ibd_mrs, sizeof(*ibdev->ibd_mrs) * ibdev->ibd_nmrs);
+ if (ibdev->ibd_mrs == NULL) {
+ CERROR("Failed to allocate MRs' table\n");
+ return -ENOMEM;
+ }
+
+ memset(ibdev->ibd_mrs, 0, sizeof(*ibdev->ibd_mrs) * ibdev->ibd_nmrs);
+
+ for (i = 0; i < ibdev->ibd_nmrs; i++) {
+ struct ib_phys_buf ipb;
+ __u64 iova;
+
+ ipb.size = ibdev->ibd_mr_size;
+ ipb.addr = i * mr_size;
+ iova = ipb.addr;
+
+ mr = ib_reg_phys_mr(ibdev->ibd_pd, &ipb, 1, acflags, &iova);
+ if (IS_ERR(mr)) {
+ CERROR("Failed ib_reg_phys_mr addr "LPX64
+ " size "LPX64" : %ld\n",
+ ipb.addr, ipb.size, PTR_ERR(mr));
+ kiblnd_dev_cleanup(ibdev);
+ return PTR_ERR(mr);
+ }
+
+ LASSERT (iova == ipb.addr);
+
+ ibdev->ibd_mrs[i] = mr;
+ }
+
+out:
+ CDEBUG(D_CONSOLE, "Register global MR array, MR size: "
+ LPX64", array size: %d\n",
+ ibdev->ibd_mr_size, ibdev->ibd_nmrs);
+
+ list_add_tail(&ibdev->ibd_list,
+ &kiblnd_data.kib_devs);
+ return 0;
+}
+
+void
+kiblnd_destroy_dev (kib_dev_t *dev)
+{
+ LASSERT (dev->ibd_nnets == 0);
+
+ if (!list_empty(&dev->ibd_list)) /* on kib_devs? */
+ list_del_init(&dev->ibd_list);
+
+ kiblnd_dev_cleanup(dev);
+
+ if (dev->ibd_pd != NULL)
+ ib_dealloc_pd(dev->ibd_pd);
+
+ if (dev->ibd_cmid != NULL)
+ rdma_destroy_id(dev->ibd_cmid);
+
+ LIBCFS_FREE(dev, sizeof(*dev));
}
void
case IBLND_INIT_NOTHING:
LASSERT (atomic_read(&net->ibn_nconns) == 0);
-#if IBLND_MAP_ON_DEMAND
if (net->ibn_fmrpool != NULL)
ib_destroy_fmr_pool(net->ibn_fmrpool);
-#endif
+ if (net->ibn_pmrpool != NULL)
+ kiblnd_destroy_pmr_pool(net->ibn_pmrpool);
+
if (net->ibn_dev != NULL &&
net->ibn_dev->ibd_nnets == 0)
kiblnd_destroy_dev(net->ibn_dev);
int
kiblnd_base_startup (void)
{
- int rc;
- int i;
+ int i;
+ int rc;
LASSERT (kiblnd_data.kib_init == IBLND_INIT_NOTHING);
- if (*kiblnd_tunables.kib_credits > *kiblnd_tunables.kib_ntx) {
- CERROR("Can't set credits(%d) > ntx(%d)\n",
- *kiblnd_tunables.kib_credits,
- *kiblnd_tunables.kib_ntx);
- return -EINVAL;
- }
-
PORTAL_MODULE_USE;
memset(&kiblnd_data, 0, sizeof(kiblnd_data)); /* zero pointers, flags etc */
kiblnd_startup (lnet_ni_t *ni)
{
char *ifname;
+ kib_dev_t *ibdev = NULL;
kib_net_t *net;
- kib_dev_t *ibdev;
struct list_head *tmp;
struct timeval tv;
int rc;
- LASSERT (ni->ni_lnd == &the_kiblnd);
+ LASSERT (ni->ni_lnd == &the_o2iblnd);
if (kiblnd_data.kib_init == IBLND_INIT_NOTHING) {
rc = kiblnd_base_startup();
do_gettimeofday(&tv);
net->ibn_incarnation = (((__u64)tv.tv_sec) * 1000000) + tv.tv_usec;
- ni->ni_maxtxcredits = *kiblnd_tunables.kib_credits;
- ni->ni_peertxcredits = *kiblnd_tunables.kib_peercredits;
+ ni->ni_peertimeout = *kiblnd_tunables.kib_peertimeout;
+ ni->ni_maxtxcredits = *kiblnd_tunables.kib_credits;
+ ni->ni_peertxcredits = *kiblnd_tunables.kib_peertxcredits;
+ ni->ni_peerrtrcredits = *kiblnd_tunables.kib_peerrtrcredits;
spin_lock_init(&net->ibn_tx_lock);
INIT_LIST_HEAD(&net->ibn_idle_txs);
- rc = kiblnd_alloc_tx_descs(ni);
- if (rc != 0) {
- CERROR("Can't allocate tx descs\n");
- goto failed;
- }
-
if (ni->ni_interfaces[0] != NULL) {
/* Use the IPoIB interface specified in 'networks=' */
goto failed;
}
- ibdev = NULL;
list_for_each (tmp, &kiblnd_data.kib_devs) {
ibdev = list_entry(tmp, kib_dev_t, ibd_list);
int up;
struct rdma_cm_id *id;
struct ib_pd *pd;
- struct ib_mr *mr;
struct sockaddr_in addr;
rc = libcfs_ipif_query(ifname, &up, &ip, &netmask);
memset(ibdev, 0, sizeof(*ibdev));
- INIT_LIST_HEAD(&ibdev->ibd_list); /* not yet in kib_devs */
+ CFS_INIT_LIST_HEAD(&ibdev->ibd_list); /* not yet in kib_devs */
ibdev->ibd_ifip = ip;
strcpy(&ibdev->ibd_ifname[0], ifname);
id = rdma_create_id(kiblnd_cm_callback, ibdev, RDMA_PS_TCP);
- if (!IS_ERR(id)) {
- ibdev->ibd_cmid = id;
- } else {
+ if (IS_ERR(id)) {
CERROR("Can't create listen ID: %ld\n", PTR_ERR(id));
goto failed;
}
+ ibdev->ibd_cmid = id;
+
memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_port = htons(*kiblnd_tunables.kib_service);
/* Binding should have assigned me an IB device */
LASSERT (id->device != NULL);
+ CDEBUG(D_CONSOLE, "Listener bound to %s:%u.%u.%u.%u:%d:%s\n",
+ ifname, HIPQUAD(ip), *kiblnd_tunables.kib_service,
+ id->device->name);
pd = ib_alloc_pd(id->device);
- if (!IS_ERR(pd)) {
- ibdev->ibd_pd = pd;
- } else {
+ if (IS_ERR(pd)) {
CERROR("Can't allocate PD: %ld\n", PTR_ERR(pd));
goto failed;
}
-#if IBLND_MAP_ON_DEMAND
- /* MR for sends and receives */
- mr = ib_get_dma_mr(pd, IB_ACCESS_LOCAL_WRITE);
-#else
- /* MR for sends, recieves _and_ RDMA...........v */
- mr = ib_get_dma_mr(pd, IB_ACCESS_LOCAL_WRITE |
- IB_ACCESS_REMOTE_WRITE);
-#endif
- if (!IS_ERR(mr)) {
- ibdev->ibd_mr = mr;
- } else {
- CERROR("Can't get MR: %ld\n", PTR_ERR(mr));
- goto failed;
- }
+ ibdev->ibd_pd = pd;
- rc = rdma_listen(id, 0);
+ rc = rdma_listen(id, 256);
if (rc != 0) {
CERROR("Can't start listener: %d\n", rc);
goto failed;
}
- list_add_tail(&ibdev->ibd_list,
- &kiblnd_data.kib_devs);
+ rc = kiblnd_dev_setup(ibdev);
+ if (rc != 0) {
+ CERROR("Can't setup device: %d\n", rc);
+ goto failed;
+ }
}
ni->ni_nid = LNET_MKNID(LNET_NIDNET(ni->ni_nid), ibdev->ibd_ifip);
net->ibn_dev = ibdev;
-#if IBLND_MAP_ON_DEMAND
- /* FMR pool for RDMA */
- {
- struct ib_fmr_pool *fmrpool;
- struct ib_fmr_pool_param param = {
- .max_pages_per_fmr = LNET_MAX_PAYLOAD/PAGE_SIZE,
- .page_shift = PAGE_SHIFT,
- .access = (IB_ACCESS_LOCAL_WRITE |
- IB_ACCESS_REMOTE_WRITE),
- .pool_size = *kiblnd_tunables.kib_fmr_pool_size,
- .dirty_watermark = *kiblnd_tunables.kib_fmr_flush_trigger,
- .flush_function = NULL,
- .flush_arg = NULL,
- .cache = *kiblnd_tunables.kib_fmr_cache};
-
- if (*kiblnd_tunables.kib_fmr_pool_size <
- *kiblnd_tunables.kib_ntx) {
- CERROR("Can't set fmr pool size (%d) < ntx(%d)\n",
- *kiblnd_tunables.kib_fmr_pool_size,
- *kiblnd_tunables.kib_ntx);
- goto failed;
+ if (*kiblnd_tunables.kib_map_on_demand > 0 ||
+ ibdev->ibd_nmrs > 1) { /* premapping can fail if ibd_nmr > 1,
+ * so we always create FMR/PMR pool and
+ * map-on-demand if premapping failed */
+ /* Map on demand */
+ rc = kiblnd_ib_create_fmr_pool(ibdev, &net->ibn_fmrpool);
+ if (rc == -ENOSYS) {
+ CDEBUG(D_CONSOLE, "No FMR, creating physical mapping\n");
+
+ rc = kiblnd_create_pmr_pool(ibdev, &net->ibn_pmrpool);
}
- fmrpool = ib_create_fmr_pool(ibdev->ibd_pd, ¶m);
- if (!IS_ERR(fmrpool)) {
- net->ibn_fmrpool = fmrpool;
- } else {
- CERROR("Can't create FMR pool: %ld\n",
- PTR_ERR(fmrpool));
+ if (rc != 0) {
+ CERROR("Can't create FMR or physical mapping pool: %d, "
+ "please disable map_on_demand and retry\n", rc);
goto failed;
}
+
+ }
+
+ rc = kiblnd_alloc_tx_descs(ni);
+ if (rc != 0) {
+ CERROR("Can't allocate tx descs\n");
+ goto failed;
}
-#endif
kiblnd_map_tx_descs(ni);
return 0;
failed:
+ if (net->ibn_dev == NULL && ibdev != NULL)
+ kiblnd_destroy_dev(ibdev);
+
kiblnd_shutdown(ni);
CDEBUG(D_NET, "kiblnd_startup failed\n");
void __exit
kiblnd_module_fini (void)
{
- lnet_unregister_lnd(&the_kiblnd);
+ lnet_unregister_lnd(&the_o2iblnd);
kiblnd_tunables_fini();
}
int rc;
CLASSERT (sizeof(kib_msg_t) <= IBLND_MSG_SIZE);
-#if !IBLND_MAP_ON_DEMAND
CLASSERT (offsetof(kib_msg_t, ibm_u.get.ibgm_rd.rd_frags[IBLND_MAX_RDMA_FRAGS])
<= IBLND_MSG_SIZE);
CLASSERT (offsetof(kib_msg_t, ibm_u.putack.ibpam_rd.rd_frags[IBLND_MAX_RDMA_FRAGS])
<= IBLND_MSG_SIZE);
-#endif
+
rc = kiblnd_tunables_init();
if (rc != 0)
return rc;
- lnet_register_lnd(&the_kiblnd);
+ lnet_register_lnd(&the_o2iblnd);
return 0;
}
-MODULE_AUTHOR("Cluster File Systems, Inc. <info@clusterfs.com>");
-MODULE_DESCRIPTION("Kernel OpenIB gen2 LND v1.00");
+MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
+MODULE_DESCRIPTION("Kernel OpenIB gen2 LND v2.00");
MODULE_LICENSE("GPL");
module_init(kiblnd_module_init);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff