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_srcnid = kranal_lib.libnal_ni.ni_pid.nid;
+ connreq->racr_dstnid = conn->rac_peer->rap_nid;
connreq->racr_peerstamp = kranal_data.kra_peerstamp;
connreq->racr_connstamp = conn->rac_my_connstamp;
connreq->racr_timeout = conn->rac_timeout;
__swab32s(&connreq->racr_magic);
__swab16s(&connreq->racr_version);
__swab16s(&connreq->racr_devid);
- __swab64s(&connreq->racr_nid);
+ __swab64s(&connreq->racr_srcnid);
+ __swab64s(&connreq->racr_dstnid);
__swab64s(&connreq->racr_peerstamp);
__swab64s(&connreq->racr_connstamp);
__swab32s(&connreq->racr_timeout);
+ __swab32s(&connreq->racr_riparams.HostId);
__swab32s(&connreq->racr_riparams.FmaDomainHndl);
- __swab32s(&connreq->racr_riparams.RcvCqHndl);
__swab32s(&connreq->racr_riparams.PTag);
__swab32s(&connreq->racr_riparams.CompletionCookie);
}
return -EPROTO;
}
- if (connreq->racr_nid == PTL_NID_ANY) {
+ if (connreq->racr_srcnid == PTL_NID_ANY ||
+ connreq->racr_dstnid == PTL_NID_ANY) {
CERROR("Received PTL_NID_ANY\n");
return -EPROTO;
}
kranal_update_reaper_timeout(conn->rac_timeout);
rrc = RapkCreateRi(dev->rad_handle, conn->rac_cqid,
- dev->rad_ptag,
- dev->rad_rdma_cq, dev->rad_fma_cq,
&conn->rac_rihandle);
if (rrc != RAP_SUCCESS) {
CERROR("RapkCreateRi failed: %d\n", rrc);
}
int
-kranal_passive_conn_handshake (struct socket *sock,
- ptl_nid_t *peer_nidp, kra_conn_t **connp)
+kranal_passive_conn_handshake (struct socket *sock, ptl_nid_t *src_nidp,
+ ptl_nid_t *dst_nidp, kra_conn_t **connp)
{
struct sockaddr_in addr;
__u32 peer_ip;
unsigned int peer_port;
kra_connreq_t connreq;
- ptl_nid_t peer_nid;
+ ptl_nid_t src_nid;
+ ptl_nid_t dst_nid;
kra_conn_t *conn;
kra_device_t *dev;
int rc;
return rc;
}
- peer_nid = connreq.racr_nid;
- LASSERT (peer_nid != PTL_NID_ANY);
+ src_nid = connreq.racr_srcnid;
+ dst_nid = connreq.racr_dstnid;
for (i = 0;;i++) {
if (i == kranal_data.kra_ndevs) {
}
*connp = conn;
- *peer_nidp = peer_nid;
+ *src_nidp = src_nid;
+ *dst_nidp = dst_nid;
return 0;
}
int
-kranal_active_conn_handshake(kra_peer_t *peer, kra_conn_t **connp)
+kranal_active_conn_handshake(kra_peer_t *peer,
+ ptl_nid_t *dst_nidp, kra_conn_t **connp)
{
kra_connreq_t connreq;
kra_conn_t *conn;
sock_release(sock);
rc = -EPROTO;
- if (connreq.racr_nid != peer->rap_nid) {
- CERROR("Unexpected nid from %u.%u.%u.%u/%d: "
+ if (connreq.racr_srcnid != peer->rap_nid) {
+ CERROR("Unexpected srcnid from %u.%u.%u.%u/%d: "
"received "LPX64" expected "LPX64"\n",
HIPQUAD(peer->rap_ip), peer->rap_port,
- connreq.racr_nid, peer->rap_nid);
+ connreq.racr_srcnid, peer->rap_nid);
goto failed_0;
}
goto failed_0;
*connp = conn;
+ *dst_nidp = connreq.racr_dstnid;
return 0;
failed_1:
kra_peer_t *peer2;
kra_tx_t *tx;
ptl_nid_t peer_nid;
+ ptl_nid_t dst_nid;
unsigned long flags;
kra_conn_t *conn;
int rc;
int nstale;
+ int new_peer = 0;
if (sock == NULL) {
/* active: connd wants to connect to 'peer' */
LASSERT (peer != NULL);
LASSERT (peer->rap_connecting);
- rc = kranal_active_conn_handshake(peer, &conn);
+ rc = kranal_active_conn_handshake(peer, &dst_nid, &conn);
if (rc != 0)
return rc;
write_unlock_irqrestore(&kranal_data.kra_global_lock,
flags);
kranal_conn_decref(conn);
- return ESTALE;
+ return -ESTALE;
}
peer_nid = peer->rap_nid;
-
} else {
/* passive: listener accepted 'sock' */
LASSERT (peer == NULL);
- rc = kranal_passive_conn_handshake(sock, &peer_nid, &conn);
+ rc = kranal_passive_conn_handshake(sock, &peer_nid,
+ &dst_nid, &conn);
if (rc != 0)
return rc;
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));
+ new_peer = 1;
} 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. */
}
- LASSERT (kranal_peer_active(peer)); /* peer is in the peer table */
+ 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 (dst_nid != kranal_lib.libnal_ni.ni_pid.nid) {
+ write_unlock_irqrestore(&kranal_data.kra_global_lock, flags);
- /* 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 */
+ CERROR("Stale/bad connection with "LPX64
+ ": dst_nid "LPX64", expected "LPX64"\n",
+ peer_nid, dst_nid, kranal_lib.libnal_ni.ni_pid.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 (!list_empty(&peer->rap_conns));
write_unlock_irqrestore(&kranal_data.kra_global_lock, flags);
CWARN("Not creating duplicate connection to "LPX64": %d\n",
peer_nid, rc);
- kranal_conn_decref(conn);
- return 0;
+ rc = 0;
+ goto failed;
}
+ if (new_peer) {
+ /* peer table takes my ref on the new peer */
+ list_add_tail(&peer->rap_list,
+ kranal_nid2peerlist(peer_nid));
+ }
+
kranal_peer_addref(peer); /* +1 ref for conn */
conn->rac_peer = peer;
list_add_tail(&conn->rac_list, &peer->rap_conns);
* FMA event may have happened before it got in the cq hash table */
kranal_schedule_conn(conn);
return 0;
+
+ failed:
+ if (new_peer)
+ kranal_peer_decref(peer);
+ kranal_conn_decref(conn);
+ return rc;
}
void
struct sockaddr_in addr;
wait_queue_t wait;
struct socket *sock;
- struct socket *newsock;
+ kra_acceptsock_t *ras;
int port;
- kra_connreq_t *connreqs;
char name[16];
int rc;
+ unsigned long flags;
/* Parent thread holds kra_nid_mutex, and is, or is about to
* block on kra_listener_signal */
init_waitqueue_entry(&wait, current);
- rc = -ENOMEM;
- PORTAL_ALLOC(connreqs, 2 * sizeof(*connreqs));
- if (connreqs == NULL)
- goto out_0;
-
rc = kranal_create_sock(&sock);
if (rc != 0)
- goto out_1;
+ goto out_0;
memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
rc = sock->ops->bind(sock, (struct sockaddr *)&addr, sizeof(addr));
if (rc != 0) {
CERROR("Can't bind to port %d\n", port);
- goto out_2;
+ goto out_1;
}
rc = sock->ops->listen(sock, kranal_tunables.kra_backlog);
if (rc != 0) {
CERROR("Can't set listen backlog %d: %d\n",
kranal_tunables.kra_backlog, rc);
- goto out_2;
+ goto out_1;
}
LASSERT (kranal_data.kra_listener_sock == NULL);
/* Wake me any time something happens on my socket */
add_wait_queue(sock->sk->sk_sleep, &wait);
+ ras = NULL;
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;
+ if (ras == NULL) {
+ PORTAL_ALLOC(ras, sizeof(*ras));
+ if (ras == NULL) {
+ CERROR("Out of Memory: pausing...\n");
+ kranal_pause(HZ);
+ continue;
+ }
+ ras->ras_sock = NULL;
}
+ if (ras->ras_sock == NULL) {
+ ras->ras_sock = sock_alloc();
+ if (ras->ras_sock == NULL) {
+ CERROR("Can't allocate socket: pausing...\n");
+ kranal_pause(HZ);
+ continue;
+ }
+ }
+
set_current_state(TASK_INTERRUPTIBLE);
- rc = sock->ops->accept(sock, newsock, O_NONBLOCK);
+ rc = sock->ops->accept(sock, ras->ras_sock, O_NONBLOCK);
+ /* Sleep for socket activity? */
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);
- }
+ if (rc == 0) {
+ spin_lock_irqsave(&kranal_data.kra_connd_lock, flags);
+
+ list_add_tail(&ras->ras_list,
+ &kranal_data.kra_connd_acceptq);
+
+ spin_unlock_irqrestore(&kranal_data.kra_connd_lock, flags);
+ wake_up(&kranal_data.kra_connd_waitq);
+
+ ras = NULL;
continue;
- }
+ }
+
+ if (rc != -EAGAIN) {
+ CERROR("Accept failed: %d, pausing...\n", rc);
+ kranal_pause(HZ);
+ }
+ }
- kranal_conn_handshake(newsock, NULL);
- sock_release(newsock);
+ if (ras != NULL) {
+ if (ras->ras_sock != NULL)
+ sock_release(ras->ras_sock);
+ PORTAL_FREE(ras, sizeof(*ras));
}
rc = 0;
remove_wait_queue(sock->sk->sk_sleep, &wait);
- out_2:
+ out_1:
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) */
goto failed_1;
}
- rrc = RapkCreatePtag(dev->rad_handle,
- &dev->rad_ptag);
- if (rrc != RAP_SUCCESS) {
- CERROR("Can't create ptag"
- " for device %d: %d\n", id, rrc);
- goto failed_1;
- }
-
- rrc = RapkCreateCQ(dev->rad_handle, total_ntx, dev->rad_ptag,
- &dev->rad_rdma_cq);
+ rrc = RapkCreateCQ(dev->rad_handle, total_ntx, RAP_CQTYPE_SEND,
+ &dev->rad_rdma_cqh);
if (rrc != RAP_SUCCESS) {
CERROR("Can't create rdma cq size %d"
" for device %d: %d\n", total_ntx, id, rrc);
- goto failed_2;
+ goto failed_1;
}
- rrc = RapkCreateCQ(dev->rad_handle, RANAL_FMA_CQ_SIZE,
- dev->rad_ptag, &dev->rad_fma_cq);
+ rrc = RapkCreateCQ(dev->rad_handle, RANAL_FMA_CQ_SIZE, RAP_CQTYPE_RECV,
+ &dev->rad_fma_cqh);
if (rrc != RAP_SUCCESS) {
CERROR("Can't create fma cq size %d"
" for device %d: %d\n", RANAL_FMA_CQ_SIZE, id, rrc);
- goto failed_3;
+ goto failed_2;
}
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:
kranal_device_fini(kra_device_t *dev)
{
LASSERT(dev->rad_scheduler == NULL);
- RapkDestroyCQ(dev->rad_handle, dev->rad_fma_cq, dev->rad_ptag);
- RapkDestroyCQ(dev->rad_handle, dev->rad_rdma_cq, dev->rad_ptag);
- RapkDestroyPtag(dev->rad_handle, dev->rad_ptag);
+ RapkDestroyCQ(dev->rad_handle, dev->rad_fma_cqh);
+ RapkDestroyCQ(dev->rad_handle, dev->rad_rdma_cqh);
RapkReleaseDevice(dev->rad_handle);
}
tx->tx_buffer = (void *)((unsigned long)(kiov->kiov_offset + offset));
phys->Address = kranal_page2phys(kiov->kiov_page);
- phys->Length = PAGE_SIZE;
phys++;
resid = nob - (kiov->kiov_len - offset);
}
phys->Address = kranal_page2phys(kiov->kiov_page);
- phys->Length = PAGE_SIZE;
phys++;
resid -= PAGE_SIZE;
case RANAL_BUF_PHYS_UNMAPPED:
rrc = RapkRegisterPhys(dev->rad_handle,
tx->tx_phys, tx->tx_phys_npages,
- dev->rad_ptag, &tx->tx_map_key);
+ &tx->tx_map_key);
LASSERT (rrc == RAP_SUCCESS);
tx->tx_buftype = RANAL_BUF_PHYS_MAPPED;
break;
case RANAL_BUF_VIRT_UNMAPPED:
rrc = RapkRegisterMemory(dev->rad_handle,
tx->tx_buffer, tx->tx_nob,
- dev->rad_ptag, &tx->tx_map_key);
+ &tx->tx_map_key);
LASSERT (rrc == RAP_SUCCESS);
tx->tx_buftype = RANAL_BUF_VIRT_MAPPED;
break;
dev = tx->tx_conn->rac_device;
LASSERT (current == dev->rad_scheduler);
rrc = RapkDeregisterMemory(dev->rad_handle, NULL,
- dev->rad_ptag, &tx->tx_map_key);
+ &tx->tx_map_key);
LASSERT (rrc == RAP_SUCCESS);
tx->tx_buftype = RANAL_BUF_PHYS_UNMAPPED;
break;
dev = tx->tx_conn->rac_device;
LASSERT (current == dev->rad_scheduler);
rrc = RapkDeregisterMemory(dev->rad_handle, tx->tx_buffer,
- dev->rad_ptag, &tx->tx_map_key);
+ &tx->tx_map_key);
LASSERT (rrc == RAP_SUCCESS);
tx->tx_buftype = RANAL_BUF_VIRT_UNMAPPED;
break;
LASSERT (conn->rac_rxmsg != NULL);
- rrc = RapkFmaCopyToUser(conn->rac_rihandle, buffer,
- &nob_received, sizeof(kra_msg_t));
+ rrc = RapkFmaCopyOut(conn->rac_rihandle, buffer,
+ &nob_received, sizeof(kra_msg_t));
LASSERT (rrc == RAP_SUCCESS);
conn->rac_rxmsg = NULL;
wait_queue_t wait;
unsigned long flags;
kra_peer_t *peer;
+ kra_acceptsock_t *ras;
+ int did_something;
snprintf(name, sizeof(name), "kranal_connd_%02ld", (long)arg);
kportal_daemonize(name);
spin_lock_irqsave(&kranal_data.kra_connd_lock, flags);
while (!kranal_data.kra_shutdown) {
- /* Safe: kra_shutdown only set when quiescent */
+ did_something = 0;
+
+ if (!list_empty(&kranal_data.kra_connd_acceptq)) {
+ ras = list_entry(kranal_data.kra_connd_acceptq.next,
+ kra_acceptsock_t, ras_list);
+ list_del(&ras->ras_list);
+ spin_unlock_irqrestore(&kranal_data.kra_connd_lock, flags);
+ kranal_conn_handshake(ras->ras_sock, NULL);
+ sock_release(ras->ras_sock);
+ PORTAL_FREE(ras, sizeof(*ras));
+
+ spin_lock_irqsave(&kranal_data.kra_connd_lock, flags);
+ did_something = 1;
+ }
+
if (!list_empty(&kranal_data.kra_connd_peers)) {
peer = list_entry(kranal_data.kra_connd_peers.next,
kra_peer_t, rap_connd_list);
kranal_peer_decref(peer);
spin_lock_irqsave(&kranal_data.kra_connd_lock, flags);
- continue;
+ did_something = 1;
}
+ if (did_something)
+ continue;
+
set_current_state(TASK_INTERRUPTIBLE);
add_wait_queue(&kranal_data.kra_connd_waitq, &wait);
__u32 event_type;
for (;;) {
- rrc = RapkCQDone(dev->rad_rdma_cq, &cqid, &event_type);
+ rrc = RapkCQDone(dev->rad_rdma_cqh, &cqid, &event_type);
if (rrc == RAP_NOT_DONE)
return;
int i;
for (;;) {
- rrc = RapkCQDone(dev->rad_fma_cq, &cqid, &event_type);
+ rrc = RapkCQDone(dev->rad_fma_cqh, &cqid, &event_type);
if (rrc != RAP_NOT_DONE)
return;
int expect_reply;
/* NB 1. kranal_sendmsg() may fail if I'm out of credits right now.
- * However I will be rescheduled some by a rad_fma_cq event when
- * I eventually get some.
+ * However I will be rescheduled some by an FMA completion event
+ * when I eventually get some.
* NB 2. Sampling rac_state here, races with setting it elsewhere
* kranal_close_conn_locked. But it doesn't matter if I try to
* send a "real" message just as I start closing because I'll get
git://git.whamcloud.com / fs / lustre-release.git / commitdiff