static void
kiblnd_debug_rx(struct kib_rx *rx)
{
- CDEBUG(D_CONSOLE, " %p status %d msg_type %x cred %d\n",
- rx, rx->rx_status, rx->rx_msg->ibm_type,
- rx->rx_msg->ibm_credits);
+ CDEBUG(D_CONSOLE, " %p msg_type %x cred %d\n",
+ rx, rx->rx_msg->ibm_type,
+ rx->rx_msg->ibm_credits);
}
static void
static int
kiblnd_get_completion_vector(struct kib_conn *conn, int cpt)
{
- cpumask_t *mask;
+ cpumask_var_t *mask;
int vectors;
int off;
int i;
/* hash NID to CPU id in this partition... */
ibp_nid = conn->ibc_peer->ibp_nid;
- off = do_div(ibp_nid, cpumask_weight(mask));
- for_each_cpu(i, mask) {
+ off = do_div(ibp_nid, cpumask_weight(*mask));
+ for_each_cpu(i, *mask) {
if (off-- == 0)
return i % vectors;
}
* One WR for the LNet message
* And ibc_max_frags for the transfer WRs
*/
- unsigned int ret = 1 + conn->ibc_max_frags;
+ int ret;
+ int multiplier = 1 + conn->ibc_max_frags;
enum kib_dev_caps dev_caps = conn->ibc_hdev->ibh_dev->ibd_dev_caps;
/* FastReg needs two extra WRs for map and invalidate */
if (dev_caps & IBLND_DEV_CAPS_FASTREG_ENABLED)
- ret += 2;
+ multiplier += 2;
/* account for a maximum of ibc_queue_depth in-flight transfers */
- ret *= conn->ibc_queue_depth;
- return ret;
+ ret = multiplier * conn->ibc_queue_depth;
+
+ if (ret > conn->ibc_hdev->ibh_max_qp_wr) {
+ CDEBUG(D_NET, "peer_credits %u will result in send work "
+ "request size %d larger than maximum %d device "
+ "can handle\n", conn->ibc_queue_depth, ret,
+ conn->ibc_hdev->ibh_max_qp_wr);
+ conn->ibc_queue_depth =
+ conn->ibc_hdev->ibh_max_qp_wr / multiplier;
+ }
+
+ /* don't go beyond the maximum the device can handle */
+ return min(ret, conn->ibc_hdev->ibh_max_qp_wr);
}
struct kib_conn *
init_qp_attr->qp_type = IB_QPT_RC;
init_qp_attr->send_cq = cq;
init_qp_attr->recv_cq = cq;
+ /*
+ * kiblnd_send_wrs() can change the connection's queue depth if
+ * the maximum work requests for the device is maxed out
+ */
+ init_qp_attr->cap.max_send_wr = kiblnd_send_wrs(conn);
+ init_qp_attr->cap.max_recv_wr = IBLND_RECV_WRS(conn);
- conn->ibc_sched = sched;
-
- do {
- init_qp_attr->cap.max_send_wr = kiblnd_send_wrs(conn);
- init_qp_attr->cap.max_recv_wr = IBLND_RECV_WRS(conn);
-
- rc = rdma_create_qp(cmid, conn->ibc_hdev->ibh_pd, init_qp_attr);
- if (!rc || conn->ibc_queue_depth < 2)
- break;
-
- conn->ibc_queue_depth--;
- } while (rc);
-
+ rc = rdma_create_qp(cmid, conn->ibc_hdev->ibh_pd, init_qp_attr);
if (rc) {
CERROR("Can't create QP: %d, send_wr: %d, recv_wr: %d, "
"send_sge: %d, recv_sge: %d\n",
goto failed_2;
}
+ conn->ibc_sched = sched;
+
if (conn->ibc_queue_depth != peer_ni->ibp_queue_depth)
CWARN("peer %s - queue depth reduced from %u to %u"
" to allow for qp creation\n",
#endif
hdev->ibh_mr_size = dev_attr->max_mr_size;
+ hdev->ibh_max_qp_wr = dev_attr->max_qp_wr;
/* Setup device Memory Registration capabilities */
#ifdef HAVE_IB_DEVICE_OPS
rc = -ENOSYS;
}
- if (rc == 0 && hdev->ibh_mr_size == ~0ULL)
- hdev->ibh_mr_shift = 64;
- else if (rc != 0)
+ if (rc != 0)
rc = -EINVAL;
#ifndef HAVE_IB_DEVICE_ATTRS
static int
kiblnd_startup(struct lnet_ni *ni)
{
- char *ifname;
+ char *ifname;
struct lnet_inetdev *ifaces = NULL;
struct kib_dev *ibdev = NULL;
struct kib_net *net;
- unsigned long flags;
- int rc;
+ unsigned long flags;
+ int rc;
int i;
- LASSERT (ni->ni_net->net_lnd == &the_o2iblnd);
+ LASSERT(ni->ni_net->net_lnd == &the_o2iblnd);
- if (kiblnd_data.kib_init == IBLND_INIT_NOTHING) {
+ if (kiblnd_data.kib_init == IBLND_INIT_NOTHING) {
rc = kiblnd_base_startup(ni->ni_net_ns);
- if (rc != 0)
- return rc;
- }
+ if (rc != 0)
+ return rc;
+ }
- LIBCFS_ALLOC(net, sizeof(*net));
- ni->ni_data = net;
- if (net == NULL)
- goto failed;
+ LIBCFS_ALLOC(net, sizeof(*net));
+ ni->ni_data = net;
+ if (net == NULL)
+ goto failed;
net->ibn_incarnation = ktime_get_real_ns() / NSEC_PER_USEC;
ifname = *kiblnd_tunables.kib_default_ipif;
}
- if (strlen(ifname) >= sizeof(ibdev->ibd_ifname)) {
- CERROR("IPoIB interface name too long: %s\n", ifname);
- goto failed;
- }
+ if (strlen(ifname) >= sizeof(ibdev->ibd_ifname)) {
+ CERROR("IPoIB interface name too long: %s\n", ifname);
+ goto failed;
+ }
rc = lnet_inet_enumerate(&ifaces, ni->ni_net_ns);
if (rc < 0)
goto failed;
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;
- }
+ if (rc != 0) {
+ CERROR("Failed to initialize NI pools: %d\n", rc);
+ goto failed;
+ }
write_lock_irqsave(&kiblnd_data.kib_global_lock, flags);
ibdev->ibd_nnets++;
list_add_tail(&net->ibn_list, &ibdev->ibd_nets);
write_unlock_irqrestore(&kiblnd_data.kib_global_lock, flags);
- net->ibn_init = IBLND_INIT_ALL;
+ net->ibn_init = IBLND_INIT_ALL;
- return 0;
+ return 0;
failed:
if (net != NULL && net->ibn_dev == NULL && ibdev != NULL)
- kiblnd_destroy_dev(ibdev);
+ kiblnd_destroy_dev(ibdev);
kfree(ifaces);
- kiblnd_shutdown(ni);
+ kiblnd_shutdown(ni);
- CDEBUG(D_NET, "kiblnd_startup failed\n");
- return -ENETDOWN;
+ CDEBUG(D_NET, "kiblnd_startup failed\n");
+ return -ENETDOWN;
}
static struct lnet_lnd the_o2iblnd = {
git://git.whamcloud.com / fs / lustre-release.git / blobdiff