*
* 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.
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2016, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
{
kib_peer_t *peer;
kib_net_t *net = ni->ni_data;
- int cpt = lnet_cpt_of_nid(nid);
+ int cpt = lnet_cpt_of_nid(nid, ni);
unsigned long flags;
LASSERT(net != NULL);
peer->ibp_nid = nid;
peer->ibp_error = 0;
peer->ibp_last_alive = 0;
+ peer->ibp_max_frags = kiblnd_cfg_rdma_frags(peer->ibp_ni);
+ peer->ibp_queue_depth = ni->ni_net->net_tunables.lct_peer_tx_credits;
atomic_set(&peer->ibp_refcount, 1); /* 1 ref for caller */
INIT_LIST_HEAD(&peer->ibp_list); /* not in the peer table yet */
LASSERT(net != NULL);
LASSERT (atomic_read(&peer->ibp_refcount) == 0);
LASSERT(!kiblnd_peer_active(peer));
- LASSERT(peer->ibp_connecting == 0);
- LASSERT(peer->ibp_accepting == 0);
- LASSERT(list_empty(&peer->ibp_conns));
+ LASSERT(kiblnd_peer_idle(peer));
LASSERT(list_empty(&peer->ibp_tx_queue));
LIBCFS_FREE(peer, sizeof(*peer));
}
kib_peer_t *
-kiblnd_find_peer_locked (lnet_nid_t nid)
+kiblnd_find_peer_locked(struct lnet_ni *ni, lnet_nid_t nid)
{
/* the caller is responsible for accounting the additional reference
* that this creates */
list_for_each(tmp, peer_list) {
peer = list_entry(tmp, kib_peer_t, ibp_list);
-
- LASSERT(peer->ibp_connecting > 0 || /* creating conns */
- peer->ibp_accepting > 0 ||
- !list_empty(&peer->ibp_conns)); /* active conn */
-
- if (peer->ibp_nid != nid)
+ LASSERT(!kiblnd_peer_idle(peer));
+
+ /*
+ * Match a peer if its NID and the NID of the local NI it
+ * communicates over are the same. Otherwise don't match
+ * the peer, which will result in a new lnd peer being
+ * created.
+ */
+ if (peer->ibp_nid != nid ||
+ peer->ibp_ni->ni_nid != ni->ni_nid)
continue;
CDEBUG(D_NET, "got peer [%p] -> %s (%d) version: %x\n",
list_for_each(ptmp, &kiblnd_data.kib_peers[i]) {
peer = list_entry(ptmp, kib_peer_t, ibp_list);
- LASSERT(peer->ibp_connecting > 0 ||
- peer->ibp_accepting > 0 ||
- !list_empty(&peer->ibp_conns));
+ LASSERT(!kiblnd_peer_idle(peer));
if (peer->ibp_ni != ni)
continue;
for (i = lo; i <= hi; i++) {
list_for_each_safe(ptmp, pnxt, &kiblnd_data.kib_peers[i]) {
peer = list_entry(ptmp, kib_peer_t, ibp_list);
- LASSERT(peer->ibp_connecting > 0 ||
- peer->ibp_accepting > 0 ||
- !list_empty(&peer->ibp_conns));
+ LASSERT(!kiblnd_peer_idle(peer));
if (peer->ibp_ni != ni)
continue;
list_for_each(ptmp, &kiblnd_data.kib_peers[i]) {
peer = list_entry(ptmp, kib_peer_t, ibp_list);
- LASSERT(peer->ibp_connecting > 0 ||
- peer->ibp_accepting > 0 ||
- !list_empty(&peer->ibp_conns));
+ LASSERT(!kiblnd_peer_idle(peer));
if (peer->ibp_ni != ni)
continue;
kiblnd_debug_tx (kib_tx_t *tx)
{
CDEBUG(D_CONSOLE, " %p snd %d q %d w %d rc %d dl %lx "
- "cookie "LPX64" msg %s%s type %x cred %d\n",
+ "cookie %#llx msg %s%s type %x cred %d\n",
tx, tx->tx_sending, tx->tx_queued, tx->tx_waiting,
tx->tx_status, tx->tx_deadline, tx->tx_cookie,
tx->tx_lntmsg[0] == NULL ? "-" : "!",
int vectors;
int off;
int i;
+ lnet_nid_t ibp_nid;
vectors = conn->ibc_cmid->device->num_comp_vectors;
if (vectors <= 1)
mask = cfs_cpt_cpumask(lnet_cpt_table(), cpt);
/* hash NID to CPU id in this partition... */
- off = conn->ibc_peer->ibp_nid % cpumask_weight(mask);
+ ibp_nid = conn->ibc_peer->ibp_nid;
+ off = do_div(ibp_nid, cpumask_weight(mask));
for_each_cpu(i, mask) {
if (off-- == 0)
return i % vectors;
kib_conn_t *
kiblnd_create_conn(kib_peer_t *peer, struct rdma_cm_id *cmid,
- int state, int version, kib_connparams_t *cp)
+ int state, int version)
{
/* CAVEAT EMPTOR:
* If the new conn is created successfully it takes over the caller's
dev = net->ibn_dev;
- cpt = lnet_cpt_of_nid(peer->ibp_nid);
+ cpt = lnet_cpt_of_nid(peer->ibp_nid, peer->ibp_ni);
sched = kiblnd_data.kib_scheds[cpt];
LASSERT(sched->ibs_nthreads > 0);
conn->ibc_peer = peer; /* I take the caller's ref */
cmid->context = conn; /* for future CM callbacks */
conn->ibc_cmid = cmid;
-
- if (cp == NULL) {
- conn->ibc_max_frags = IBLND_CFG_RDMA_FRAGS;
- conn->ibc_queue_depth = *kiblnd_tunables.kib_peertxcredits;
- } else {
- conn->ibc_max_frags = cp->ibcp_max_frags;
- conn->ibc_queue_depth = cp->ibcp_queue_depth;
- }
+ conn->ibc_max_frags = peer->ibp_max_frags;
+ conn->ibc_queue_depth = peer->ibp_queue_depth;
INIT_LIST_HEAD(&conn->ibc_early_rxs);
INIT_LIST_HEAD(&conn->ibc_tx_noops);
kiblnd_map_rx_descs(conn);
#ifdef HAVE_IB_CQ_INIT_ATTR
- cq_attr.cqe = IBLND_CQ_ENTRIES(version);
+ cq_attr.cqe = IBLND_CQ_ENTRIES(conn);
cq_attr.comp_vector = kiblnd_get_completion_vector(conn, cpt);
cq = ib_create_cq(cmid->device,
kiblnd_cq_completion, kiblnd_cq_event, conn,
conn->ibc_sched = sched;
- rc = rdma_create_qp(cmid, conn->ibc_hdev->ibh_pd, init_qp_attr);
- if (rc != 0) {
- 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;
- }
+ do {
+ rc = rdma_create_qp(cmid, conn->ibc_hdev->ibh_pd, init_qp_attr);
+ if (!rc || init_qp_attr->cap.max_send_wr < 16)
+ break;
- LIBCFS_FREE(init_qp_attr, sizeof(*init_qp_attr));
+ init_qp_attr->cap.max_send_wr -= init_qp_attr->cap.max_send_wr / 4;
+ } while (rc);
- /* 1 ref for caller and each rxmsg */
+ if (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;
+ }
+
+ if (init_qp_attr->cap.max_send_wr != IBLND_SEND_WRS(conn))
+ CDEBUG(D_NET, "original send wr %d, created with %d\n",
+ IBLND_SEND_WRS(conn), init_qp_attr->cap.max_send_wr);
+
+ 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));
conn->ibc_nrx = IBLND_RX_MSGS(conn);
- /* post receives */
+ /* post receives */
for (i = 0; i < IBLND_RX_MSGS(conn); i++) {
- rc = kiblnd_post_rx(&conn->ibc_rxs[i],
- IBLND_POSTRX_NO_CREDIT);
+ rc = kiblnd_post_rx(&conn->ibc_rxs[i], IBLND_POSTRX_NO_CREDIT);
if (rc != 0) {
CERROR("Can't post rxmsg: %d\n", rc);
return conn;
failed_2:
- kiblnd_destroy_conn(conn);
+ kiblnd_destroy_conn(conn, true);
failed_1:
LIBCFS_FREE(init_qp_attr, sizeof(*init_qp_attr));
failed_0:
}
void
-kiblnd_destroy_conn (kib_conn_t *conn)
+kiblnd_destroy_conn(kib_conn_t *conn, bool free_conn)
{
struct rdma_cm_id *cmid = conn->ibc_cmid;
kib_peer_t *peer = conn->ibc_peer;
if (conn->ibc_state != IBLND_CONN_INIT) {
kib_net_t *net = peer->ibp_ni->ni_data;
+ kiblnd_peer_decref(peer);
rdma_destroy_id(cmid);
atomic_dec(&net->ibn_nconns);
- if (conn->ibc_conn_race) {
- if (peer->ibp_accepting == 0 &&
- !list_empty(&peer->ibp_tx_queue)) {
- kiblnd_connect_peer(peer);
- } else {
- rwlock_t *glock = &kiblnd_data.kib_global_lock;
- unsigned long flags;
-
- write_lock_irqsave(glock, flags);
- peer->ibp_connecting--;
- write_unlock_irqrestore(glock, flags);
- }
- }
- kiblnd_peer_decref(peer);
}
- LIBCFS_FREE(conn, sizeof(*conn));
+ if (free_conn)
+ LIBCFS_FREE(conn, sizeof(*conn));
}
int
continue;
CDEBUG(D_NET, "Closing stale conn -> %s version: %x, "
- "incarnation:"LPX64"(%x, "LPX64")\n",
+ "incarnation:%#llx(%x, %#llx)\n",
libcfs_nid2str(peer->ibp_nid),
conn->ibc_version, conn->ibc_incarnation,
version, incarnation);
list_for_each_safe(ptmp, pnxt, &kiblnd_data.kib_peers[i]) {
peer = list_entry(ptmp, kib_peer_t, ibp_list);
- LASSERT(peer->ibp_connecting > 0 ||
- peer->ibp_accepting > 0 ||
- !list_empty(&peer->ibp_conns));
+ LASSERT(!kiblnd_peer_idle(peer));
if (peer->ibp_ni != ni)
continue;
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 */
+ peer = kiblnd_find_peer_locked(ni, nid);
+ if (peer != NULL)
last_alive = peer->ibp_last_alive;
- }
read_unlock_irqrestore(glock, flags);
rx->rx_msgaddr));
KIBLND_UNMAP_ADDR_SET(rx, rx_msgunmap, rx->rx_msgaddr);
- CDEBUG(D_NET, "rx %d: %p "LPX64"("LPX64")\n",
+ CDEBUG(D_NET, "rx %d: %p %#llx(%#llx)\n",
i, rx->rx_msg, rx->rx_msgaddr,
(__u64)(page_to_phys(pg) + pg_off));
if (i++ % 50 == 0)
CDEBUG(D_NET, "%s: Wait for failover\n",
dev->ibd_ifname);
+ set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(cfs_time_seconds(1) / 100);
read_lock_irqsave(&kiblnd_data.kib_global_lock, flags);
}
struct ib_mr *
-kiblnd_find_rd_dma_mr(kib_hca_dev_t *hdev, kib_rdma_desc_t *rd,
+kiblnd_find_rd_dma_mr(struct lnet_ni *ni, kib_rdma_desc_t *rd,
int negotiated_nfrags)
{
- __u16 nfrags = (negotiated_nfrags != -1) ?
- negotiated_nfrags : *kiblnd_tunables.kib_map_on_demand;
+ kib_net_t *net = ni->ni_data;
+ kib_hca_dev_t *hdev = net->ibn_dev->ibd_hdev;
+ struct lnet_ioctl_config_o2iblnd_tunables *tunables;
+ int mod;
+ __u16 nfrags;
+
+ tunables = &ni->ni_lnd_tunables.lnd_tun_u.lnd_o2ib;
+ mod = tunables->lnd_map_on_demand;
+ nfrags = (negotiated_nfrags != -1) ? negotiated_nfrags : mod;
LASSERT(hdev->ibh_mrs != NULL);
- if (*kiblnd_tunables.kib_map_on_demand > 0 &&
- nfrags <= rd->rd_nfrags)
+ if (mod > 0 && nfrags <= rd->rd_nfrags)
return NULL;
return hdev->ibh_mrs;
}
static void
-kiblnd_destroy_fmr_pool(kib_fmr_pool_t *pool)
+kiblnd_destroy_fmr_pool(kib_fmr_pool_t *fpo)
{
- LASSERT (pool->fpo_map_count == 0);
+ LASSERT(fpo->fpo_map_count == 0);
- if (pool->fpo_fmr_pool != NULL)
- ib_destroy_fmr_pool(pool->fpo_fmr_pool);
+ if (fpo->fpo_is_fmr) {
+ if (fpo->fmr.fpo_fmr_pool)
+ ib_destroy_fmr_pool(fpo->fmr.fpo_fmr_pool);
+ } else {
+ struct kib_fast_reg_descriptor *frd, *tmp;
+ int i = 0;
+
+ list_for_each_entry_safe(frd, tmp, &fpo->fast_reg.fpo_pool_list,
+ frd_list) {
+ list_del(&frd->frd_list);
+#ifndef HAVE_IB_MAP_MR_SG
+ ib_free_fast_reg_page_list(frd->frd_frpl);
+#endif
+ ib_dereg_mr(frd->frd_mr);
+ LIBCFS_FREE(frd, sizeof(*frd));
+ i++;
+ }
+ if (i < fpo->fast_reg.fpo_pool_size)
+ CERROR("FastReg pool still has %d regions registered\n",
+ fpo->fast_reg.fpo_pool_size - i);
+ }
- if (pool->fpo_hdev != NULL)
- kiblnd_hdev_decref(pool->fpo_hdev);
+ if (fpo->fpo_hdev)
+ kiblnd_hdev_decref(fpo->fpo_hdev);
- LIBCFS_FREE(pool, sizeof(kib_fmr_pool_t));
+ LIBCFS_FREE(fpo, sizeof(*fpo));
}
static void
kiblnd_destroy_fmr_pool_list(struct list_head *head)
{
- kib_fmr_pool_t *pool;
+ kib_fmr_pool_t *fpo, *tmp;
- while (!list_empty(head)) {
- pool = list_entry(head->next, kib_fmr_pool_t, fpo_list);
- list_del(&pool->fpo_list);
- kiblnd_destroy_fmr_pool(pool);
+ list_for_each_entry_safe(fpo, tmp, head, fpo_list) {
+ list_del(&fpo->fpo_list);
+ kiblnd_destroy_fmr_pool(fpo);
}
}
-static int kiblnd_fmr_pool_size(int ncpts)
+static int
+kiblnd_fmr_pool_size(struct lnet_ioctl_config_o2iblnd_tunables *tunables,
+ int ncpts)
{
- int size = *kiblnd_tunables.kib_fmr_pool_size / ncpts;
+ int size = tunables->lnd_fmr_pool_size / ncpts;
return max(IBLND_FMR_POOL, size);
}
-static int kiblnd_fmr_flush_trigger(int ncpts)
+static int
+kiblnd_fmr_flush_trigger(struct lnet_ioctl_config_o2iblnd_tunables *tunables,
+ int ncpts)
{
- int size = *kiblnd_tunables.kib_fmr_flush_trigger / ncpts;
+ int size = tunables->lnd_fmr_flush_trigger / ncpts;
return max(IBLND_FMR_POOL_FLUSH, size);
}
-static int
-kiblnd_create_fmr_pool(kib_fmr_poolset_t *fps, kib_fmr_pool_t **pp_fpo)
+static int kiblnd_alloc_fmr_pool(kib_fmr_poolset_t *fps, kib_fmr_pool_t *fpo)
{
- /* FMR pool for RDMA */
- kib_dev_t *dev = fps->fps_net->ibn_dev;
- kib_fmr_pool_t *fpo;
- 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),
+ 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 = fps->fps_pool_size,
.dirty_watermark = fps->fps_flush_trigger,
.flush_function = NULL,
.flush_arg = NULL,
- .cache = !!*kiblnd_tunables.kib_fmr_cache};
+ .cache = !!fps->fps_cache };
+ int rc = 0;
+
+ fpo->fmr.fpo_fmr_pool = ib_create_fmr_pool(fpo->fpo_hdev->ibh_pd,
+ ¶m);
+ if (IS_ERR(fpo->fmr.fpo_fmr_pool)) {
+ rc = PTR_ERR(fpo->fmr.fpo_fmr_pool);
+ if (rc != -ENOSYS)
+ CERROR("Failed to create FMR pool: %d\n", rc);
+ else
+ CERROR("FMRs are not supported\n");
+ }
+
+ return rc;
+}
+
+static int kiblnd_alloc_freg_pool(kib_fmr_poolset_t *fps, kib_fmr_pool_t *fpo)
+{
+ struct kib_fast_reg_descriptor *frd, *tmp;
+ int i, rc;
+
+ INIT_LIST_HEAD(&fpo->fast_reg.fpo_pool_list);
+ fpo->fast_reg.fpo_pool_size = 0;
+ for (i = 0; i < fps->fps_pool_size; i++) {
+ LIBCFS_CPT_ALLOC(frd, lnet_cpt_table(), fps->fps_cpt,
+ sizeof(*frd));
+ if (!frd) {
+ CERROR("Failed to allocate a new fast_reg descriptor\n");
+ rc = -ENOMEM;
+ goto out;
+ }
+ frd->frd_mr = NULL;
+
+#ifndef HAVE_IB_MAP_MR_SG
+ frd->frd_frpl = ib_alloc_fast_reg_page_list(fpo->fpo_hdev->ibh_ibdev,
+ LNET_MAX_PAYLOAD/PAGE_SIZE);
+ if (IS_ERR(frd->frd_frpl)) {
+ rc = PTR_ERR(frd->frd_frpl);
+ CERROR("Failed to allocate ib_fast_reg_page_list: %d\n",
+ rc);
+ frd->frd_frpl = NULL;
+ goto out_middle;
+ }
+#endif
+
+#ifdef HAVE_IB_ALLOC_FAST_REG_MR
+ frd->frd_mr = ib_alloc_fast_reg_mr(fpo->fpo_hdev->ibh_pd,
+ LNET_MAX_PAYLOAD/PAGE_SIZE);
+#else
+ frd->frd_mr = ib_alloc_mr(fpo->fpo_hdev->ibh_pd,
+ IB_MR_TYPE_MEM_REG,
+ LNET_MAX_PAYLOAD/PAGE_SIZE);
+#endif
+ if (IS_ERR(frd->frd_mr)) {
+ rc = PTR_ERR(frd->frd_mr);
+ CERROR("Failed to allocate ib_fast_reg_mr: %d\n", rc);
+ frd->frd_mr = NULL;
+ goto out_middle;
+ }
+
+ /* There appears to be a bug in MLX5 code where you must
+ * invalidate the rkey of a new FastReg pool before first
+ * using it. Thus, I am marking the FRD invalid here. */
+ frd->frd_valid = false;
+
+ list_add_tail(&frd->frd_list, &fpo->fast_reg.fpo_pool_list);
+ fpo->fast_reg.fpo_pool_size++;
+ }
+
+ return 0;
+
+out_middle:
+ if (frd->frd_mr)
+ ib_dereg_mr(frd->frd_mr);
+#ifndef HAVE_IB_MAP_MR_SG
+ if (frd->frd_frpl)
+ ib_free_fast_reg_page_list(frd->frd_frpl);
+#endif
+ LIBCFS_FREE(frd, sizeof(*frd));
+
+out:
+ list_for_each_entry_safe(frd, tmp, &fpo->fast_reg.fpo_pool_list,
+ frd_list) {
+ list_del(&frd->frd_list);
+#ifndef HAVE_IB_MAP_MR_SG
+ ib_free_fast_reg_page_list(frd->frd_frpl);
+#endif
+ ib_dereg_mr(frd->frd_mr);
+ LIBCFS_FREE(frd, sizeof(*frd));
+ }
+
+ return rc;
+}
+
+static int
+kiblnd_create_fmr_pool(kib_fmr_poolset_t *fps, kib_fmr_pool_t **pp_fpo)
+{
+ struct ib_device_attr *dev_attr;
+ kib_dev_t *dev = fps->fps_net->ibn_dev;
+ kib_fmr_pool_t *fpo;
int rc;
- LIBCFS_CPT_ALLOC(fpo, lnet_cpt_table(), fps->fps_cpt, sizeof(*fpo));
- if (fpo == NULL)
+#ifndef HAVE_IB_DEVICE_ATTRS
+ dev_attr = kmalloc(sizeof(*dev_attr), GFP_KERNEL);
+ if (!dev_attr)
return -ENOMEM;
+#endif
+
+ LIBCFS_CPT_ALLOC(fpo, lnet_cpt_table(), fps->fps_cpt, sizeof(*fpo));
+ if (!fpo) {
+ rc = -ENOMEM;
+ goto out_dev_attr;
+ }
fpo->fpo_hdev = kiblnd_current_hdev(dev);
- fpo->fpo_fmr_pool = ib_create_fmr_pool(fpo->fpo_hdev->ibh_pd, ¶m);
- if (IS_ERR(fpo->fpo_fmr_pool)) {
- rc = PTR_ERR(fpo->fpo_fmr_pool);
- CERROR("Failed to create FMR pool: %d\n", rc);
+#ifdef HAVE_IB_DEVICE_ATTRS
+ dev_attr = &fpo->fpo_hdev->ibh_ibdev->attrs;
+#else
+ rc = ib_query_device(fpo->fpo_hdev->ibh_ibdev, dev_attr);
+ if (rc) {
+ CERROR("Query device failed for %s: %d\n",
+ fpo->fpo_hdev->ibh_ibdev->name, rc);
+ goto out_dev_attr;
+ }
+#endif
+
+ /* Check for FMR or FastReg support */
+ fpo->fpo_is_fmr = 0;
+ if (fpo->fpo_hdev->ibh_ibdev->alloc_fmr &&
+ fpo->fpo_hdev->ibh_ibdev->dealloc_fmr &&
+ fpo->fpo_hdev->ibh_ibdev->map_phys_fmr &&
+ fpo->fpo_hdev->ibh_ibdev->unmap_fmr) {
+ LCONSOLE_INFO("Using FMR for registration\n");
+ fpo->fpo_is_fmr = 1;
+ } else if (dev_attr->device_cap_flags & IB_DEVICE_MEM_MGT_EXTENSIONS) {
+ LCONSOLE_INFO("Using FastReg for registration\n");
+ } else {
+ rc = -ENOSYS;
+ LCONSOLE_ERROR_MSG(rc, "IB device does not support FMRs nor FastRegs, can't register memory\n");
+ goto out_dev_attr;
+ }
- kiblnd_hdev_decref(fpo->fpo_hdev);
- LIBCFS_FREE(fpo, sizeof(kib_fmr_pool_t));
- return rc;
- }
+ if (fpo->fpo_is_fmr)
+ rc = kiblnd_alloc_fmr_pool(fps, fpo);
+ else
+ rc = kiblnd_alloc_freg_pool(fps, fpo);
+ if (rc)
+ goto out_fpo;
- fpo->fpo_deadline = cfs_time_shift(IBLND_POOL_DEADLINE);
- fpo->fpo_owner = fps;
- *pp_fpo = fpo;
+#ifndef HAVE_IB_DEVICE_ATTRS
+ kfree(dev_attr);
+#endif
+ fpo->fpo_deadline = cfs_time_shift(IBLND_POOL_DEADLINE);
+ fpo->fpo_owner = fps;
+ *pp_fpo = fpo;
- return 0;
+ return 0;
+
+out_fpo:
+ kiblnd_hdev_decref(fpo->fpo_hdev);
+ LIBCFS_FREE(fpo, sizeof(*fpo));
+
+out_dev_attr:
+#ifndef HAVE_IB_DEVICE_ATTRS
+ kfree(dev_attr);
+#endif
+
+ return rc;
}
static void
}
static int
-kiblnd_init_fmr_poolset(kib_fmr_poolset_t *fps, int cpt, kib_net_t *net,
- int pool_size, int flush_trigger)
+kiblnd_init_fmr_poolset(kib_fmr_poolset_t *fps, int cpt, int ncpts,
+ kib_net_t *net,
+ struct lnet_ioctl_config_o2iblnd_tunables *tunables)
{
kib_fmr_pool_t *fpo;
int rc;
fps->fps_net = net;
fps->fps_cpt = cpt;
- fps->fps_pool_size = pool_size;
- fps->fps_flush_trigger = flush_trigger;
+
+ fps->fps_pool_size = kiblnd_fmr_pool_size(tunables, ncpts);
+ fps->fps_flush_trigger = kiblnd_fmr_flush_trigger(tunables, ncpts);
+ fps->fps_cache = tunables->lnd_fmr_cache;
+
spin_lock_init(&fps->fps_lock);
INIT_LIST_HEAD(&fps->fps_pool_list);
INIT_LIST_HEAD(&fps->fps_failed_pool_list);
return cfs_time_aftereq(now, fpo->fpo_deadline);
}
+static int
+kiblnd_map_tx_pages(kib_tx_t *tx, kib_rdma_desc_t *rd)
+{
+ kib_hca_dev_t *hdev;
+ __u64 *pages = tx->tx_pages;
+ int npages;
+ int size;
+ int i;
+
+ hdev = tx->tx_pool->tpo_hdev;
+
+ for (i = 0, npages = 0; i < rd->rd_nfrags; i++) {
+ for (size = 0; size < rd->rd_frags[i].rf_nob;
+ size += hdev->ibh_page_size) {
+ pages[npages++] = (rd->rd_frags[i].rf_addr &
+ hdev->ibh_page_mask) + size;
+ }
+ }
+
+ return npages;
+}
+
void
kiblnd_fmr_pool_unmap(kib_fmr_t *fmr, int status)
{
struct list_head zombies = LIST_HEAD_INIT(zombies);
kib_fmr_pool_t *fpo = fmr->fmr_pool;
- kib_fmr_poolset_t *fps = fpo->fpo_owner;
+ kib_fmr_poolset_t *fps;
cfs_time_t now = cfs_time_current();
kib_fmr_pool_t *tmp;
int rc;
- rc = ib_fmr_pool_unmap(fmr->fmr_pfmr);
- LASSERT(rc == 0);
+ if (!fpo)
+ return;
- if (status != 0) {
- rc = ib_flush_fmr_pool(fpo->fpo_fmr_pool);
- LASSERT(rc == 0);
- }
+ fps = fpo->fpo_owner;
+ if (fpo->fpo_is_fmr) {
+ if (fmr->fmr_pfmr) {
+ rc = ib_fmr_pool_unmap(fmr->fmr_pfmr);
+ LASSERT(!rc);
+ fmr->fmr_pfmr = NULL;
+ }
+
+ if (status) {
+ rc = ib_flush_fmr_pool(fpo->fmr.fpo_fmr_pool);
+ LASSERT(!rc);
+ }
+ } else {
+ struct kib_fast_reg_descriptor *frd = fmr->fmr_frd;
+ if (frd) {
+ frd->frd_valid = false;
+ spin_lock(&fps->fps_lock);
+ list_add_tail(&frd->frd_list, &fpo->fast_reg.fpo_pool_list);
+ spin_unlock(&fps->fps_lock);
+ fmr->fmr_frd = NULL;
+ }
+ }
fmr->fmr_pool = NULL;
- fmr->fmr_pfmr = NULL;
spin_lock(&fps->fps_lock);
fpo->fpo_map_count--; /* decref the pool */
}
int
-kiblnd_fmr_pool_map(kib_fmr_poolset_t *fps, __u64 *pages, int npages,
- __u64 iov, kib_fmr_t *fmr)
+kiblnd_fmr_pool_map(kib_fmr_poolset_t *fps, kib_tx_t *tx, kib_rdma_desc_t *rd,
+ __u32 nob, __u64 iov, kib_fmr_t *fmr)
{
- struct ib_pool_fmr *pfmr;
- kib_fmr_pool_t *fpo;
- __u64 version;
- int rc;
+ kib_fmr_pool_t *fpo;
+ __u64 *pages = tx->tx_pages;
+ __u64 version;
+ bool is_rx = (rd != tx->tx_rd);
+ bool tx_pages_mapped = 0;
+ int npages = 0;
+ int rc;
again:
spin_lock(&fps->fps_lock);
list_for_each_entry(fpo, &fps->fps_pool_list, fpo_list) {
fpo->fpo_deadline = cfs_time_shift(IBLND_POOL_DEADLINE);
fpo->fpo_map_count++;
- spin_unlock(&fps->fps_lock);
- pfmr = ib_fmr_pool_map_phys(fpo->fpo_fmr_pool,
- pages, npages, iov);
- if (likely(!IS_ERR(pfmr))) {
- fmr->fmr_pool = fpo;
- fmr->fmr_pfmr = pfmr;
- return 0;
- }
+ if (fpo->fpo_is_fmr) {
+ struct ib_pool_fmr *pfmr;
+
+ spin_unlock(&fps->fps_lock);
+
+ if (!tx_pages_mapped) {
+ npages = kiblnd_map_tx_pages(tx, rd);
+ tx_pages_mapped = 1;
+ }
+
+ pfmr = ib_fmr_pool_map_phys(fpo->fmr.fpo_fmr_pool,
+ pages, npages, iov);
+ if (likely(!IS_ERR(pfmr))) {
+ fmr->fmr_key = is_rx ? pfmr->fmr->rkey
+ : pfmr->fmr->lkey;
+ fmr->fmr_frd = NULL;
+ fmr->fmr_pfmr = pfmr;
+ fmr->fmr_pool = fpo;
+ return 0;
+ }
+ rc = PTR_ERR(pfmr);
+ } else {
+ if (!list_empty(&fpo->fast_reg.fpo_pool_list)) {
+ struct kib_fast_reg_descriptor *frd;
+#ifdef HAVE_IB_MAP_MR_SG
+ struct ib_reg_wr *wr;
+ int n;
+#else
+ struct ib_rdma_wr *wr;
+ struct ib_fast_reg_page_list *frpl;
+#endif
+ struct ib_mr *mr;
+
+ frd = list_first_entry(&fpo->fast_reg.fpo_pool_list,
+ struct kib_fast_reg_descriptor,
+ frd_list);
+ list_del(&frd->frd_list);
+ spin_unlock(&fps->fps_lock);
+
+#ifndef HAVE_IB_MAP_MR_SG
+ frpl = frd->frd_frpl;
+#endif
+ mr = frd->frd_mr;
+
+ if (!frd->frd_valid) {
+ struct ib_rdma_wr *inv_wr;
+ __u32 key = is_rx ? mr->rkey : mr->lkey;
+
+ inv_wr = &frd->frd_inv_wr;
+ memset(inv_wr, 0, sizeof(*inv_wr));
+
+ inv_wr->wr.opcode = IB_WR_LOCAL_INV;
+ inv_wr->wr.wr_id = IBLND_WID_MR;
+ inv_wr->wr.ex.invalidate_rkey = key;
+
+ /* Bump the key */
+ key = ib_inc_rkey(key);
+ ib_update_fast_reg_key(mr, key);
+ }
+
+#ifdef HAVE_IB_MAP_MR_SG
+#ifdef HAVE_IB_MAP_MR_SG_5ARGS
+ n = ib_map_mr_sg(mr, tx->tx_frags,
+ tx->tx_nfrags, NULL, PAGE_SIZE);
+#else
+ n = ib_map_mr_sg(mr, tx->tx_frags,
+ tx->tx_nfrags, PAGE_SIZE);
+#endif
+ if (unlikely(n != tx->tx_nfrags)) {
+ CERROR("Failed to map mr %d/%d "
+ "elements\n", n, tx->tx_nfrags);
+ return n < 0 ? n : -EINVAL;
+ }
+
+ mr->iova = iov;
+
+ wr = &frd->frd_fastreg_wr;
+ memset(wr, 0, sizeof(*wr));
+
+ wr->wr.opcode = IB_WR_REG_MR;
+ wr->wr.wr_id = IBLND_WID_MR;
+ wr->wr.num_sge = 0;
+ wr->wr.send_flags = 0;
+ wr->mr = mr;
+ wr->key = is_rx ? mr->rkey : mr->lkey;
+ wr->access = (IB_ACCESS_LOCAL_WRITE |
+ IB_ACCESS_REMOTE_WRITE);
+#else
+ if (!tx_pages_mapped) {
+ npages = kiblnd_map_tx_pages(tx, rd);
+ tx_pages_mapped = 1;
+ }
+
+ LASSERT(npages <= frpl->max_page_list_len);
+ memcpy(frpl->page_list, pages,
+ sizeof(*pages) * npages);
+
+ /* Prepare FastReg WR */
+ wr = &frd->frd_fastreg_wr;
+ memset(wr, 0, sizeof(*wr));
+
+ wr->wr.opcode = IB_WR_FAST_REG_MR;
+ wr->wr.wr_id = IBLND_WID_MR;
+
+ wr->wr.wr.fast_reg.iova_start = iov;
+ wr->wr.wr.fast_reg.page_list = frpl;
+ wr->wr.wr.fast_reg.page_list_len = npages;
+ wr->wr.wr.fast_reg.page_shift = PAGE_SHIFT;
+ wr->wr.wr.fast_reg.length = nob;
+ wr->wr.wr.fast_reg.rkey =
+ is_rx ? mr->rkey : mr->lkey;
+ wr->wr.wr.fast_reg.access_flags =
+ (IB_ACCESS_LOCAL_WRITE |
+ IB_ACCESS_REMOTE_WRITE);
+#endif
+
+ fmr->fmr_key = is_rx ? mr->rkey : mr->lkey;
+ fmr->fmr_frd = frd;
+ fmr->fmr_pfmr = NULL;
+ fmr->fmr_pool = fpo;
+ return 0;
+ }
+ spin_unlock(&fps->fps_lock);
+ rc = -EBUSY;
+ }
spin_lock(&fps->fps_lock);
fpo->fpo_map_count--;
- if (PTR_ERR(pfmr) != -EAGAIN) {
+ if (rc != -EAGAIN) {
spin_unlock(&fps->fps_lock);
- return PTR_ERR(pfmr);
+ return rc;
}
/* EAGAIN and ... */
struct list_head *node;
kib_pool_t *pool;
int rc;
+ unsigned int interval = 1;
+ cfs_time_t time_before;
+ unsigned int trips = 0;
again:
spin_lock(&ps->ps_lock);
if (ps->ps_increasing) {
/* another thread is allocating a new pool */
spin_unlock(&ps->ps_lock);
+ trips++;
CDEBUG(D_NET, "Another thread is allocating new "
- "%s pool, waiting for her to complete\n",
- ps->ps_name);
- schedule();
+ "%s pool, waiting %d HZs for her to complete."
+ "trips = %d\n",
+ ps->ps_name, interval, trips);
+
+ set_current_state(TASK_INTERRUPTIBLE);
+ schedule_timeout(interval);
+ if (interval < cfs_time_seconds(1))
+ interval *= 2;
+
goto again;
}
spin_unlock(&ps->ps_lock);
CDEBUG(D_NET, "%s pool exhausted, allocate new pool\n", ps->ps_name);
-
+ time_before = cfs_time_current();
rc = ps->ps_pool_create(ps, ps->ps_pool_size, &pool);
+ CDEBUG(D_NET, "ps_pool_create took %lu HZ to complete",
+ cfs_time_current() - time_before);
spin_lock(&ps->ps_lock);
ps->ps_increasing = 0;
sizeof(*tx->tx_pages));
if (tx->tx_frags != NULL)
LIBCFS_FREE(tx->tx_frags,
- IBLND_MAX_RDMA_FRAGS *
- sizeof(*tx->tx_frags));
+ (1 + IBLND_MAX_RDMA_FRAGS) *
+ sizeof(*tx->tx_frags));
if (tx->tx_wrq != NULL)
LIBCFS_FREE(tx->tx_wrq,
(1 + IBLND_MAX_RDMA_FRAGS) *
}
LIBCFS_CPT_ALLOC(tx->tx_frags, lnet_cpt_table(), ps->ps_cpt,
- IBLND_MAX_RDMA_FRAGS * sizeof(*tx->tx_frags));
+ (1 + IBLND_MAX_RDMA_FRAGS) *
+ sizeof(*tx->tx_frags));
if (tx->tx_frags == NULL)
break;
- sg_init_table(tx->tx_frags, IBLND_MAX_RDMA_FRAGS);
+ sg_init_table(tx->tx_frags, IBLND_MAX_RDMA_FRAGS + 1);
LIBCFS_CPT_ALLOC(tx->tx_wrq, lnet_cpt_table(), ps->ps_cpt,
(1 + IBLND_MAX_RDMA_FRAGS) *
}
static int
-kiblnd_net_init_pools(kib_net_t *net, __u32 *cpts, int ncpts)
+kiblnd_net_init_pools(kib_net_t *net, lnet_ni_t *ni, __u32 *cpts, int ncpts)
{
+ struct lnet_ioctl_config_o2iblnd_tunables *tunables;
unsigned long flags;
int cpt;
int rc;
int i;
+ tunables = &ni->ni_lnd_tunables.lnd_tun_u.lnd_o2ib;
+
read_lock_irqsave(&kiblnd_data.kib_global_lock, flags);
- if (*kiblnd_tunables.kib_map_on_demand == 0) {
+ if (tunables->lnd_map_on_demand == 0) {
read_unlock_irqrestore(&kiblnd_data.kib_global_lock,
flags);
goto create_tx_pool;
read_unlock_irqrestore(&kiblnd_data.kib_global_lock, flags);
- if (*kiblnd_tunables.kib_fmr_pool_size <
- *kiblnd_tunables.kib_ntx / 4) {
+ if (tunables->lnd_fmr_pool_size < *kiblnd_tunables.kib_ntx / 4) {
CERROR("Can't set fmr pool size (%d) < ntx / 4(%d)\n",
- *kiblnd_tunables.kib_fmr_pool_size,
+ tunables->lnd_fmr_pool_size,
*kiblnd_tunables.kib_ntx / 4);
rc = -EINVAL;
goto failed;
for (i = 0; i < ncpts; i++) {
cpt = (cpts == NULL) ? i : cpts[i];
- rc = kiblnd_init_fmr_poolset(net->ibn_fmr_ps[cpt], cpt, net,
- kiblnd_fmr_pool_size(ncpts),
- kiblnd_fmr_flush_trigger(ncpts));
+ rc = kiblnd_init_fmr_poolset(net->ibn_fmr_ps[cpt], cpt, ncpts,
+ net, tunables);
if (rc != 0) {
CERROR("Can't initialize FMR pool for CPT %d: %d\n",
cpt, rc);
static int
kiblnd_hdev_get_attr(kib_hca_dev_t *hdev)
{
- struct ib_device_attr *attr;
- int rc;
+#ifndef HAVE_IB_DEVICE_ATTRS
+ struct ib_device_attr *attr;
+ int rc;
+#endif
/* It's safe to assume a HCA can handle a page size
* matching that of the native system */
hdev->ibh_page_size = 1 << PAGE_SHIFT;
hdev->ibh_page_mask = ~((__u64)hdev->ibh_page_size - 1);
+#ifdef HAVE_IB_DEVICE_ATTRS
+ hdev->ibh_mr_size = hdev->ibh_ibdev->attrs.max_mr_size;
+#else
LIBCFS_ALLOC(attr, sizeof(*attr));
if (attr == NULL) {
CERROR("Out of memory\n");
CERROR("Failed to query IB device: %d\n", rc);
return rc;
}
+#endif
if (hdev->ibh_mr_size == ~0ULL) {
hdev->ibh_mr_shift = 64;
return 0;
}
- CERROR("Invalid mr size: "LPX64"\n", hdev->ibh_mr_size);
+ CERROR("Invalid mr size: %#llx\n", hdev->ibh_mr_size);
return -EINVAL;
}
if (dev == NULL)
return NULL;
- memset(dev, 0, sizeof(*dev));
netdev = dev_get_by_name(&init_net, ifname);
if (netdev == NULL) {
dev->ibd_can_failover = 0;
}
LASSERT(list_empty(&kiblnd_data.kib_connd_zombies));
LASSERT(list_empty(&kiblnd_data.kib_connd_conns));
+ LASSERT(list_empty(&kiblnd_data.kib_reconn_list));
+ LASSERT(list_empty(&kiblnd_data.kib_reconn_wait));
/* flag threads to terminate; wake and wait for them to die */
kiblnd_data.kib_shutdown = 1;
spin_lock_init(&kiblnd_data.kib_connd_lock);
INIT_LIST_HEAD(&kiblnd_data.kib_connd_conns);
INIT_LIST_HEAD(&kiblnd_data.kib_connd_zombies);
+ INIT_LIST_HEAD(&kiblnd_data.kib_reconn_list);
+ INIT_LIST_HEAD(&kiblnd_data.kib_reconn_wait);
+
init_waitqueue_head(&kiblnd_data.kib_connd_waitq);
init_waitqueue_head(&kiblnd_data.kib_failover_waitq);
unsigned long flags;
int rc;
int newdev;
+ int node_id;
- LASSERT (ni->ni_lnd == &the_o2iblnd);
+ LASSERT (ni->ni_net->net_lnd == &the_o2iblnd);
if (kiblnd_data.kib_init == IBLND_INIT_NOTHING) {
rc = kiblnd_base_startup();
if (net == NULL)
goto failed;
- memset(net, 0, sizeof(*net));
-
do_gettimeofday(&tv);
net->ibn_incarnation = (((__u64)tv.tv_sec) * 1000000) + tv.tv_usec;
- 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;
+ kiblnd_tunables_setup(ni);
if (ni->ni_interfaces[0] != NULL) {
/* Use the IPoIB interface specified in 'networks=' */
newdev = ibdev == NULL;
/* hmm...create kib_dev even for alias */
if (ibdev == NULL || strcmp(&ibdev->ibd_ifname[0], ifname) != 0)
- ibdev = kiblnd_create_dev(ifname);
+ ibdev = kiblnd_create_dev(ifname);
- if (ibdev == NULL)
- goto failed;
+ if (ibdev == NULL)
+ goto failed;
- net->ibn_dev = ibdev;
- ni->ni_nid = LNET_MKNID(LNET_NIDNET(ni->ni_nid), ibdev->ibd_ifip);
+ node_id = dev_to_node(ibdev->ibd_hdev->ibh_ibdev->dma_device);
+ ni->dev_cpt = cfs_cpt_of_node(lnet_cpt_table(), node_id);
+
+ net->ibn_dev = ibdev;
+ ni->ni_nid = LNET_MKNID(LNET_NIDNET(ni->ni_nid), ibdev->ibd_ifip);
rc = kiblnd_dev_start_threads(ibdev, newdev,
ni->ni_cpts, ni->ni_ncpts);
if (rc != 0)
goto failed;
- rc = kiblnd_net_init_pools(net, ni->ni_cpts, ni->ni_ncpts);
+ rc = kiblnd_net_init_pools(net, ni, ni->ni_cpts, ni->ni_ncpts);
if (rc != 0) {
CERROR("Failed to initialize NI pools: %d\n", rc);
goto failed;
.lnd_recv = kiblnd_recv,
};
-static void __exit
-kiblnd_module_fini (void)
+static void __exit ko2iblnd_exit(void)
{
- lnet_unregister_lnd(&the_o2iblnd);
- kiblnd_tunables_fini();
+ lnet_unregister_lnd(&the_o2iblnd);
}
-static int __init
-kiblnd_module_init (void)
+static int __init ko2iblnd_init(void)
{
- int rc;
+ int rc;
- CLASSERT (sizeof(kib_msg_t) <= IBLND_MSG_SIZE);
- 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);
+ CLASSERT(sizeof(kib_msg_t) <= IBLND_MSG_SIZE);
+ 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);
- rc = kiblnd_tunables_init();
- if (rc != 0)
- return rc;
+ rc = kiblnd_tunables_init();
+ if (rc != 0)
+ return rc;
- lnet_register_lnd(&the_o2iblnd);
+ lnet_register_lnd(&the_o2iblnd);
- return 0;
+ return 0;
}
MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
-MODULE_DESCRIPTION("Kernel OpenIB gen2 LND v2.00");
+MODULE_DESCRIPTION("OpenIB gen2 LNet Network Driver");
+MODULE_VERSION("2.8.0");
MODULE_LICENSE("GPL");
-module_init(kiblnd_module_init);
-module_exit(kiblnd_module_fini);
+module_init(ko2iblnd_init);
+module_exit(ko2iblnd_exit);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff