#define RANAL_SYSCTL 202
static ctl_table kranal_ctl_table[] = {
- {RANAL_SYSCTL_TIMEOUT, "timeout",
+ {RANAL_SYSCTL_TIMEOUT, "timeout",
&kranal_tunables.kra_timeout, sizeof(int),
0644, NULL, &proc_dointvec},
- {RANAL_SYSCTL_LISTENER_TIMEOUT, "listener_timeout",
+ {RANAL_SYSCTL_LISTENER_TIMEOUT, "listener_timeout",
&kranal_tunables.kra_listener_timeout, sizeof(int),
0644, NULL, &proc_dointvec},
{RANAL_SYSCTL_BACKLOG, "backlog",
{RANAL_SYSCTL_PORT, "port",
&kranal_tunables.kra_port, sizeof(int),
0644, NULL, kranal_listener_procint},
- {RANAL_SYSCTL_MAX_IMMEDIATE, "max_immediate",
+ {RANAL_SYSCTL_MAX_IMMEDIATE, "max_immediate",
&kranal_tunables.kra_max_immediate, sizeof(int),
0644, NULL, &proc_dointvec},
{ 0 }
if (rc == nob)
return 0;
-
+
if (rc >= 0)
return -EAGAIN;
int rc;
mm_segment_t oldmm = get_fs();
long ticks = timeout * HZ;
- int wanted = nob;
unsigned long then;
struct timeval tv;
ticks -= jiffies - then;
set_fs(oldmm);
- CDEBUG(D_WARNING, "rc %d at %d/%d bytes %d/%d secs\n",
- rc, wanted - nob, wanted, timeout - (int)(ticks/HZ), timeout);
-
if (rc < 0)
return rc;
rrc = RapkGetRiParams(conn->rac_rihandle, &connreq->racr_riparams);
LASSERT(rrc == RAP_SUCCESS);
-
- CDEBUG(D_WARNING,"devid %d, riparams: HID %08x FDH %08x PT %08x CC %08x\n",
- connreq->racr_devid,
- connreq->racr_riparams.HostId,
- connreq->racr_riparams.FmaDomainHndl,
- connreq->racr_riparams.PTag,
- connreq->racr_riparams.CompletionCookie);
}
int
connreq->racr_timeout, RANAL_MIN_TIMEOUT);
return -EPROTO;
}
-
+
return 0;
}
if (conn->rac_device != newconn->rac_device)
continue;
-
+
if (loopback &&
newconn->rac_my_connstamp == conn->rac_peer_connstamp &&
newconn->rac_peer_connstamp == conn->rac_my_connstamp)
continue;
-
+
LASSERT (conn->rac_peer_connstamp < newconn->rac_peer_connstamp);
CDEBUG(D_NET, "Closing stale conn nid:"LPX64
- " connstamp:"LPX64"("LPX64")\n", peer->rap_nid,
+ " connstamp:"LPX64"("LPX64")\n", peer->rap_nid,
conn->rac_peer_connstamp, newconn->rac_peer_connstamp);
count++;
int loopback;
loopback = peer->rap_nid == kranal_lib.libnal_ni.ni_pid.nid;
-
+
list_for_each(tmp, &peer->rap_conns) {
conn = list_entry(tmp, kra_conn_t, rac_list);
/* 'newconn' is an earlier connection from 'peer'!!! */
if (newconn->rac_peer_connstamp < conn->rac_peer_connstamp)
return 2;
-
+
/* 'conn' is an earlier connection from 'peer': it will be
* removed when we cull stale conns later on... */
if (newconn->rac_peer_connstamp > conn->rac_peer_connstamp)
continue;
-
+
/* 'newconn' has the SAME connection stamp; 'peer' isn't
* playing the game... */
return 3;
do { /* allocate a unique cqid */
conn->rac_cqid = kranal_data.kra_next_cqid++;
} while (kranal_cqid2conn_locked(conn->rac_cqid) != NULL);
-
+
write_unlock_irqrestore(&kranal_data.kra_global_lock, flags);
}
}
void
-kranal_destroy_conn(kra_conn_t *conn)
+kranal_destroy_conn(kra_conn_t *conn)
{
RAP_RETURN rrc;
/* Non-persistent peer with no more conns... */
kranal_unlink_peer_locked(peer);
}
-
+
/* Reset RX timeout to ensure we wait for an incoming CLOSE for the
- * full timeout */
+ * full timeout. If we get a CLOSE we know the peer has stopped all
+ * RDMA. Otherwise if we wait for the full timeout we can also be sure
+ * all RDMA has stopped. */
conn->rac_last_rx = jiffies;
mb();
kranal_close_conn (kra_conn_t *conn, int error)
{
unsigned long flags;
-
+
write_lock_irqsave(&kranal_data.kra_global_lock, flags);
-
+
if (conn->rac_state == RANAL_CONN_ESTABLISHED)
kranal_close_conn_locked(conn, error);
-
+
write_unlock_irqrestore(&kranal_data.kra_global_lock, flags);
}
int
-kranal_set_conn_params(kra_conn_t *conn, kra_connreq_t *connreq,
+kranal_set_conn_params(kra_conn_t *conn, kra_connreq_t *connreq,
__u32 peer_ip, int peer_port)
{
RAP_RETURN rrc;
- CDEBUG(D_WARNING,"devid %d, riparams: HID %08x FDH %08x PT %08x CC %08x\n",
- conn->rac_device->rad_id,
- connreq->racr_riparams.HostId,
- connreq->racr_riparams.FmaDomainHndl,
- connreq->racr_riparams.PTag,
- connreq->racr_riparams.CompletionCookie);
-
rrc = RapkSetRiParams(conn->rac_rihandle, &connreq->racr_riparams);
if (rrc != RAP_SUCCESS) {
- CERROR("Error setting riparams from %u.%u.%u.%u/%d: %d\n",
+ CERROR("Error setting riparams from %u.%u.%u.%u/%d: %d\n",
HIPQUAD(peer_ip), peer_port, rrc);
return -EPROTO;
}
-
+
conn->rac_peerstamp = connreq->racr_peerstamp;
conn->rac_peer_connstamp = connreq->racr_connstamp;
conn->rac_keepalive = RANAL_TIMEOUT2KEEPALIVE(connreq->racr_timeout);
}
int
-kranal_passive_conn_handshake (struct socket *sock, ptl_nid_t *src_nidp,
+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;
int len;
int i;
- CDEBUG(D_WARNING,"!!\n");
-
len = sizeof(addr);
rc = sock->ops->getname(sock, (struct sockaddr *)&addr, &len, 2);
if (rc != 0) {
peer_ip = ntohl(addr.sin_addr.s_addr);
peer_port = ntohs(addr.sin_port);
- CDEBUG(D_WARNING,"%u.%u.%u.%u\n", HIPQUAD(peer_ip));
-
if (peer_port >= 1024) {
CERROR("Refusing unprivileged connection from %u.%u.%u.%u/%d\n",
HIPQUAD(peer_ip), peer_port);
return -ECONNREFUSED;
}
- CDEBUG(D_WARNING,"%u.%u.%u.%u\n", HIPQUAD(peer_ip));
-
- rc = kranal_recv_connreq(sock, &rx_connreq,
+ rc = kranal_recv_connreq(sock, &rx_connreq,
kranal_tunables.kra_listener_timeout);
if (rc != 0) {
- CERROR("Can't rx connreq from %u.%u.%u.%u/%d: %d\n",
+ CERROR("Can't rx connreq from %u.%u.%u.%u/%d: %d\n",
HIPQUAD(peer_ip), peer_port, rc);
return rc;
}
- CDEBUG(D_WARNING,"%u.%u.%u.%u\n", HIPQUAD(peer_ip));
-
for (i = 0;;i++) {
if (i == kranal_data.kra_ndevs) {
CERROR("Can't match dev %d from %u.%u.%u.%u/%d\n",
break;
}
- CDEBUG(D_WARNING,"%u.%u.%u.%u\n", HIPQUAD(peer_ip));
-
rc = kranal_create_conn(&conn, dev);
if (rc != 0)
return rc;
- CDEBUG(D_WARNING,"%u.%u.%u.%u\n", HIPQUAD(peer_ip));
-
kranal_pack_connreq(&tx_connreq, conn, rx_connreq.racr_srcnid);
rc = kranal_sock_write(sock, &tx_connreq, sizeof(tx_connreq));
if (rc != 0) {
- CERROR("Can't tx connreq to %u.%u.%u.%u/%d: %d\n",
+ CERROR("Can't tx connreq to %u.%u.%u.%u/%d: %d\n",
HIPQUAD(peer_ip), peer_port, rc);
kranal_conn_decref(conn);
return rc;
}
- CDEBUG(D_WARNING,"%u.%u.%u.%u\n", HIPQUAD(peer_ip));
-
rc = kranal_set_conn_params(conn, &rx_connreq, peer_ip, peer_port);
if (rc != 0) {
kranal_conn_decref(conn);
return rc;
}
- CDEBUG(D_WARNING,"%u.%u.%u.%u\n", HIPQUAD(peer_ip));
-
*connp = conn;
*src_nidp = rx_connreq.racr_srcnid;
*dst_nidp = rx_connreq.racr_dstnid;
for (port = 1023; port >= 512; port--) {
- memset(&locaddr, 0, sizeof(locaddr));
- locaddr.sin_family = AF_INET;
+ memset(&locaddr, 0, sizeof(locaddr));
+ locaddr.sin_family = AF_INET;
locaddr.sin_port = htons(port);
locaddr.sin_addr.s_addr = htonl(INADDR_ANY);
(struct sockaddr *)&locaddr, sizeof(locaddr));
if (rc != 0) {
sock_release(sock);
-
+
if (rc == -EADDRINUSE) {
CDEBUG(D_NET, "Port %d already in use\n", port);
continue;
*sockp = sock;
return 0;
}
-
+
sock_release(sock);
if (rc != -EADDRNOTAVAIL) {
port, HIPQUAD(peer->rap_ip), peer->rap_port, rc);
return rc;
}
-
- CDEBUG(D_NET, "Port %d not available for %u.%u.%u.%u/%d\n",
+
+ CDEBUG(D_NET, "Port %d not available for %u.%u.%u.%u/%d\n",
port, HIPQUAD(peer->rap_ip), peer->rap_port);
}
int
-kranal_active_conn_handshake(kra_peer_t *peer,
+kranal_active_conn_handshake(kra_peer_t *peer,
ptl_nid_t *dst_nidp, kra_conn_t **connp)
{
kra_connreq_t connreq;
int rc;
unsigned int idx;
- CDEBUG(D_WARNING,LPX64"\n", peer->rap_nid);
-
/* spread connections over all devices using both peer NIDs to ensure
* all nids use all devices */
idx = peer->rap_nid + kranal_lib.libnal_ni.ni_pid.nid;
if (rc != 0)
return rc;
- CDEBUG(D_WARNING,LPX64"\n", peer->rap_nid);
-
kranal_pack_connreq(&connreq, conn, peer->rap_nid);
-
+
rc = ranal_connect_sock(peer, &sock);
if (rc != 0)
goto failed_0;
- CDEBUG(D_WARNING,LPX64"\n", peer->rap_nid);
-
/* CAVEAT EMPTOR: the passive side receives with a SHORT rx timeout
* immediately after accepting a connection, so we connect and then
* send immediately. */
rc = kranal_sock_write(sock, &connreq, sizeof(connreq));
if (rc != 0) {
- CERROR("Can't tx connreq to %u.%u.%u.%u/%d: %d\n",
+ CERROR("Can't tx connreq to %u.%u.%u.%u/%d: %d\n",
HIPQUAD(peer->rap_ip), peer->rap_port, rc);
goto failed_1;
}
- CDEBUG(D_WARNING,LPX64"\n", peer->rap_nid);
-
rc = kranal_recv_connreq(sock, &connreq, kranal_tunables.kra_timeout);
if (rc != 0) {
- CERROR("Can't rx connreq from %u.%u.%u.%u/%d: %d\n",
+ CERROR("Can't rx connreq from %u.%u.%u.%u/%d: %d\n",
HIPQUAD(peer->rap_ip), peer->rap_port, rc);
goto failed_1;
}
- CDEBUG(D_WARNING,LPX64"\n", peer->rap_nid);
-
sock_release(sock);
rc = -EPROTO;
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,
+ HIPQUAD(peer->rap_ip), peer->rap_port,
connreq.racr_srcnid, peer->rap_nid);
goto failed_0;
}
if (connreq.racr_devid != dev->rad_id) {
CERROR("Unexpected device id from %u.%u.%u.%u/%d: "
"received %d expected %d\n",
- HIPQUAD(peer->rap_ip), peer->rap_port,
+ HIPQUAD(peer->rap_ip), peer->rap_port,
connreq.racr_devid, dev->rad_id);
goto failed_0;
}
- CDEBUG(D_WARNING,LPX64"\n", peer->rap_nid);
-
- rc = kranal_set_conn_params(conn, &connreq,
+ rc = kranal_set_conn_params(conn, &connreq,
peer->rap_ip, peer->rap_port);
if (rc != 0)
goto failed_0;
*connp = conn;
*dst_nidp = connreq.racr_dstnid;
- CDEBUG(D_WARNING,LPX64"\n", peer->rap_nid);
return 0;
failed_1:
sock_release(sock);
failed_0:
kranal_conn_decref(conn);
- CDEBUG(D_WARNING,LPX64": %d\n", peer->rap_nid, rc);
return rc;
}
/* active: connd wants to connect to 'peer' */
LASSERT (peer != NULL);
LASSERT (peer->rap_connecting);
-
+
rc = kranal_active_conn_handshake(peer, &dst_nid, &conn);
if (rc != 0)
return rc;
if (!kranal_peer_active(peer)) {
/* raced with peer getting unlinked */
- write_unlock_irqrestore(&kranal_data.kra_global_lock,
+ write_unlock_irqrestore(&kranal_data.kra_global_lock,
flags);
kranal_conn_decref(conn);
return -ESTALE;
}
}
- LASSERT (!new_peer == !kranal_peer_active(peer));
+ 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
list_add_tail(&peer->rap_list,
kranal_nid2peerlist(peer_nid));
}
-
+
+ /* initialise timestamps before reaper looks at them */
+ conn->rac_last_tx = conn->rac_last_rx = jiffies;
+
kranal_peer_addref(peer); /* +1 ref for conn */
conn->rac_peer = peer;
list_add_tail(&conn->rac_list, &peer->rap_conns);
LASSERT (peer->rap_connecting);
- CDEBUG(D_WARNING,"About to handshake "LPX64"\n", peer->rap_nid);
+ CDEBUG(D_NET, "About to handshake "LPX64"\n", peer->rap_nid);
rc = kranal_conn_handshake(NULL, peer);
- CDEBUG(D_WARNING,"Done handshake "LPX64":%d \n", peer->rap_nid, rc);
+ CDEBUG(D_NET, "Done handshake "LPX64":%d \n", peer->rap_nid, rc);
write_lock_irqsave(&kranal_data.kra_global_lock, flags);
rc = sock->ops->listen(sock, kranal_tunables.kra_backlog);
if (rc != 0) {
- CERROR("Can't set listen backlog %d: %d\n",
+ CERROR("Can't set listen backlog %d: %d\n",
kranal_tunables.kra_backlog, rc);
goto out_1;
}
ras->ras_sock->type = sock->type;
ras->ras_sock->ops = sock->ops;
}
-
+
set_current_state(TASK_INTERRUPTIBLE);
rc = sock->ops->accept(sock, ras->ras_sock, O_NONBLOCK);
if (rc == 0) {
spin_lock_irqsave(&kranal_data.kra_connd_lock, flags);
-
- list_add_tail(&ras->ras_list,
+
+ list_add_tail(&ras->ras_list,
&kranal_data.kra_connd_acceptq);
spin_unlock_irqrestore(&kranal_data.kra_connd_lock, flags);
ras = NULL;
continue;
}
-
+
if (rc != -EAGAIN) {
CERROR("Accept failed: %d, pausing...\n", rc);
kranal_pause(HZ);
sock_release(sock);
kranal_data.kra_listener_sock = NULL;
out_0:
- /* set completion status and unblock thread waiting for me
+ /* set completion status and unblock thread waiting for me
* (parent on startup failure, executioner on normal shutdown) */
kranal_data.kra_listener_shutdown = rc;
up(&kranal_data.kra_listener_signal);
long pid;
int rc;
- CDEBUG(D_WARNING, "Starting listener\n");
+ CDEBUG(D_NET, "Starting listener\n");
/* Called holding kra_nid_mutex: listener stopped */
LASSERT (kranal_data.kra_listener_sock == NULL);
rc = kranal_data.kra_listener_shutdown;
LASSERT ((rc != 0) == (kranal_data.kra_listener_sock == NULL));
- CDEBUG(D_WARNING, "Listener %ld started OK\n", pid);
+ CDEBUG(D_NET, "Listener %ld started OK\n", pid);
return rc;
}
unsigned long flags;
kra_acceptsock_t *ras;
- CDEBUG(D_WARNING, "Stopping listener\n");
+ CDEBUG(D_NET, "Stopping listener\n");
/* Called holding kra_nid_mutex: listener running */
LASSERT (kranal_data.kra_listener_sock != NULL);
down(&kranal_data.kra_listener_signal);
LASSERT (kranal_data.kra_listener_sock == NULL);
- CDEBUG(D_WARNING, "Listener stopped\n");
+ CDEBUG(D_NET, "Listener stopped\n");
if (!clear_acceptq)
return;
-
+
/* Close any unhandled accepts */
spin_lock_irqsave(&kranal_data.kra_connd_lock, flags);
list_del_init(&kranal_data.kra_connd_acceptq);
spin_unlock_irqrestore(&kranal_data.kra_connd_lock, flags);
-
+
while (!list_empty(&zombie_accepts)) {
- ras = list_entry(zombie_accepts.next,
+ ras = list_entry(zombie_accepts.next,
kra_acceptsock_t, ras_list);
list_del(&ras->ras_list);
kranal_free_acceptsock(ras);
}
}
-int
+int
kranal_listener_procint(ctl_table *table, int write, struct file *filp,
void *buffer, size_t *lenp)
{
kranal_data.kra_peerstamp++;
ni->ni_pid.nid = nid;
write_unlock_irqrestore(&kranal_data.kra_global_lock, flags);
-
+
/* Delete all existing peers and their connections after new
* NID/connstamp set to ensure no old connections in our brave
* new world. */
}
int
-kranal_get_peer_info (int index, ptl_nid_t *nidp, __u32 *ipp, int *portp,
+kranal_get_peer_info (int index, ptl_nid_t *nidp, __u32 *ipp, int *portp,
int *persistencep)
{
kra_peer_t *peer;
break;
}
case NAL_CMD_DEL_PEER: {
- rc = kranal_del_peer(pcfg->pcfg_nid,
+ rc = kranal_del_peer(pcfg->pcfg_nid,
/* flags == single_share */
pcfg->pcfg_flags != 0);
break;
PORTAL_ALLOC(tx->tx_phys,
PTL_MD_MAX_IOV * sizeof(*tx->tx_phys));
if (tx->tx_phys == NULL) {
- CERROR("Can't allocate %stx[%d]->tx_phys\n",
+ CERROR("Can't allocate %stx[%d]->tx_phys\n",
isnblk ? "nblk " : "", i);
PORTAL_FREE(tx, sizeof(*tx));
{
int i;
unsigned long flags;
-
+
if (nal->nal_refct != 0) {
/* This module got the first ref */
PORTAL_MODULE_UNUSE;
spin_unlock_irqrestore(&kranal_data.kra_reaper_lock, flags);
LASSERT (list_empty(&kranal_data.kra_connd_peers));
- spin_lock_irqsave(&kranal_data.kra_connd_lock, flags);
+ spin_lock_irqsave(&kranal_data.kra_connd_lock, flags);
wake_up_all(&kranal_data.kra_connd_waitq);
- spin_unlock_irqrestore(&kranal_data.kra_connd_lock, flags);
+ spin_unlock_irqrestore(&kranal_data.kra_connd_lock, flags);
i = 2;
while (atomic_read(&kranal_data.kra_nthreads) != 0) {
LASSERT (list_empty(&kranal_data.kra_peers[i]));
PORTAL_FREE(kranal_data.kra_peers,
- sizeof (struct list_head) *
+ sizeof (struct list_head) *
kranal_data.kra_peer_hash_size);
}
LASSERT (list_empty(&kranal_data.kra_conns[i]));
PORTAL_FREE(kranal_data.kra_conns,
- sizeof (struct list_head) *
+ sizeof (struct list_head) *
kranal_data.kra_conn_hash_size);
}
/* OK to call kranal_api_shutdown() to cleanup now */
kranal_data.kra_init = RANAL_INIT_DATA;
-
+
kranal_data.kra_peer_hash_size = RANAL_PEER_HASH_SIZE;
PORTAL_ALLOC(kranal_data.kra_peers,
sizeof(struct list_head) * kranal_data.kra_peer_hash_size);
return PTL_OK;
failed:
- kranal_api_shutdown(&kranal_api);
+ kranal_api_shutdown(&kranal_api);
return PTL_FAIL;
}
return -ENODEV;
}
- kranal_tunables.kra_sysctl =
+ kranal_tunables.kra_sysctl =
register_sysctl_table(kranal_top_ctl_table, 0);
if (kranal_tunables.kra_sysctl == NULL) {
CERROR("Can't register sysctl table\n");
kra_device_t *dev;
int i;
unsigned long flags;
-
+
+ CDEBUG(D_NET, "callback for device %d\n", devid);
+
for (i = 0; i < kranal_data.kra_ndevs; i++) {
dev = &kranal_data.kra_devices[i];
spin_unlock_irqrestore(&dev->rad_lock, flags);
return;
}
-
+
CWARN("callback for unknown device %d\n", devid);
}
{
kra_device_t *dev = conn->rac_device;
unsigned long flags;
-
+
spin_lock_irqsave(&dev->rad_lock, flags);
-
+
if (!conn->rac_scheduled) {
kranal_conn_addref(conn); /* +1 ref for scheduler */
conn->rac_scheduled = 1;
}
kra_tx_t *
-kranal_get_idle_tx (int may_block)
+kranal_get_idle_tx (int may_block)
{
unsigned long flags;
kra_tx_t *tx = NULL;
-
+
for (;;) {
spin_lock_irqsave(&kranal_data.kra_tx_lock, flags);
}
spin_unlock_irqrestore(&kranal_data.kra_tx_lock, flags);
-
+
return tx;
}
}
int
-kranal_setup_immediate_buffer (kra_tx_t *tx, int niov, struct iovec *iov,
+kranal_setup_immediate_buffer (kra_tx_t *tx, int niov, struct iovec *iov,
int offset, int nob)
-
+
{
/* For now this is almost identical to kranal_setup_virt_buffer, but we
* could "flatten" the payload into a single contiguous buffer ready
* for sending direct over an FMA if we ever needed to. */
- LASSERT (nob > 0);
- LASSERT (niov > 0);
LASSERT (tx->tx_buftype == RANAL_BUF_NONE);
+ LASSERT (nob >= 0);
- while (offset >= iov->iov_len) {
- offset -= iov->iov_len;
- niov--;
- iov++;
+ if (nob == 0) {
+ tx->tx_buffer = NULL;
+ } else {
LASSERT (niov > 0);
- }
- if (nob > iov->iov_len - offset) {
- CERROR("Can't handle multiple vaddr fragments\n");
- return -EMSGSIZE;
+ while (offset >= iov->iov_len) {
+ offset -= iov->iov_len;
+ niov--;
+ iov++;
+ LASSERT (niov > 0);
+ }
+
+ if (nob > iov->iov_len - offset) {
+ CERROR("Can't handle multiple vaddr fragments\n");
+ return -EMSGSIZE;
+ }
+
+ tx->tx_buffer = (void *)(((unsigned long)iov->iov_base) + offset);
}
tx->tx_buftype = RANAL_BUF_IMMEDIATE;
tx->tx_nob = nob;
- tx->tx_buffer = (void *)(((unsigned long)iov->iov_base) + offset);
return 0;
}
int
-kranal_setup_virt_buffer (kra_tx_t *tx, int niov, struct iovec *iov,
+kranal_setup_virt_buffer (kra_tx_t *tx, int niov, struct iovec *iov,
int offset, int nob)
-
+
{
LASSERT (nob > 0);
LASSERT (niov > 0);
tx->tx_buftype = RANAL_BUF_PHYS_UNMAPPED;
tx->tx_nob = nob;
tx->tx_buffer = (void *)((unsigned long)(kiov->kiov_offset + offset));
-
+
phys->Address = kranal_page2phys(kiov->kiov_page);
phys++;
LASSERT (nkiov > 0);
if (kiov->kiov_offset != 0 ||
- ((resid > PAGE_SIZE) &&
+ ((resid > PAGE_SIZE) &&
kiov->kiov_len < PAGE_SIZE)) {
/* Can't have gaps */
CERROR("Can't make payload contiguous in I/O VM:"
- "page %d, offset %d, len %d \n",
- (int)(phys - tx->tx_phys),
- kiov->kiov_offset, kiov->kiov_len);
+ "page %d, offset %d, len %d \n",
+ (int)(phys - tx->tx_phys),
+ kiov->kiov_offset, kiov->kiov_len);
return -EINVAL;
}
}
static inline int
-kranal_setup_rdma_buffer (kra_tx_t *tx, int niov,
+kranal_setup_rdma_buffer (kra_tx_t *tx, int niov,
struct iovec *iov, ptl_kiov_t *kiov,
int offset, int nob)
{
LASSERT ((iov == NULL) != (kiov == NULL));
-
+
if (kiov != NULL)
return kranal_setup_phys_buffer(tx, niov, kiov, offset, nob);
-
+
return kranal_setup_virt_buffer(tx, niov, iov, offset, nob);
}
switch (tx->tx_buftype) {
default:
LBUG();
-
+
case RANAL_BUF_NONE:
case RANAL_BUF_IMMEDIATE:
case RANAL_BUF_PHYS_MAPPED:
case RANAL_BUF_VIRT_MAPPED:
break;
-
+
case RANAL_BUF_PHYS_UNMAPPED:
rrc = RapkRegisterPhys(dev->rad_handle,
tx->tx_phys, tx->tx_phys_npages,
switch (tx->tx_buftype) {
default:
LBUG();
-
+
case RANAL_BUF_NONE:
case RANAL_BUF_IMMEDIATE:
case RANAL_BUF_PHYS_UNMAPPED:
case RANAL_BUF_VIRT_UNMAPPED:
break;
-
+
case RANAL_BUF_PHYS_MAPPED:
LASSERT (tx->tx_conn != NULL);
dev = tx->tx_conn->rac_device;
/* If I get here, I've committed to send, so I complete the tx with
* failure on any problems */
-
+
LASSERT (tx->tx_conn == NULL); /* only set when assigned a conn */
read_lock(g_lock);
-
+
peer = kranal_find_peer_locked(nid);
if (peer == NULL) {
read_unlock(g_lock);
read_unlock(g_lock);
return;
}
-
+
/* Making one or more connections; I'll need a write lock... */
read_unlock(g_lock);
write_lock_irqsave(g_lock, flags);
if (!peer->rap_connecting) {
LASSERT (list_empty(&peer->rap_tx_queue));
-
+
now = CURRENT_SECONDS;
if (now < peer->rap_reconnect_time) {
write_unlock_irqrestore(g_lock, flags);
kranal_tx_done(tx, -EHOSTUNREACH);
return;
}
-
+
peer->rap_connecting = 1;
kranal_peer_addref(peer); /* extra ref for connd */
-
+
spin_lock(&kranal_data.kra_connd_lock);
-
+
list_add_tail(&peer->rap_connd_list,
&kranal_data.kra_connd_peers);
wake_up(&kranal_data.kra_connd_waitq);
-
+
spin_unlock(&kranal_data.kra_connd_lock);
}
-
+
/* A connection is being established; queue the message... */
list_add_tail(&tx->tx_list, &peer->rap_tx_queue);
}
void
-kranal_rdma(kra_tx_t *tx, int type,
+kranal_rdma(kra_tx_t *tx, int type,
kra_rdma_desc_t *sink, int nob, __u64 cookie)
{
kra_conn_t *conn = tx->tx_conn;
/* No actual race with scheduler sending CLOSE (I'm she!) */
LASSERT (current == conn->rac_device->rad_scheduler);
-
+
memset(&tx->tx_rdma_desc, 0, sizeof(tx->tx_rdma_desc));
tx->tx_rdma_desc.SrcPtr.AddressBits = (__u64)((unsigned long)tx->tx_buffer);
tx->tx_rdma_desc.SrcKey = tx->tx_map_key;
RAP_RETURN rrc;
LASSERT (conn->rac_rxmsg != NULL);
+ CDEBUG(D_NET, "Consuming %p\n", conn);
rrc = RapkFmaCopyOut(conn->rac_rihandle, buffer,
&nob_received, sizeof(kra_msg_t));
conn->rac_rxmsg = NULL;
- if (nob_received != nob) {
- CWARN("Expected %d immediate bytes but got %d\n",
- nob, nob_received);
+ if (nob_received < nob) {
+ CWARN("Incomplete immediate msg from "LPX64
+ ": expected %d, got %d\n",
+ conn->rac_peer->rap_nid, nob, nob_received);
return -EPROTO;
}
-
+
return 0;
}
ptl_err_t
-kranal_do_send (lib_nal_t *nal,
+kranal_do_send (lib_nal_t *nal,
void *private,
lib_msg_t *libmsg,
- ptl_hdr_t *hdr,
- int type,
- ptl_nid_t nid,
+ ptl_hdr_t *hdr,
+ int type,
+ ptl_nid_t nid,
ptl_pid_t pid,
- unsigned int niov,
- struct iovec *iov,
+ unsigned int niov,
+ struct iovec *iov,
ptl_kiov_t *kiov,
int offset,
int nob)
switch(type) {
default:
LBUG();
-
+
case PTL_MSG_REPLY: {
/* reply's 'private' is the conn that received the GET_REQ */
conn = private;
}
break; /* RDMA not expected */
}
-
+
/* Incoming message consistent with immediate reply? */
if (conn->rac_rxmsg->ram_type != RANAL_MSG_GET_REQ) {
CERROR("REPLY to "LPX64" bad msg type %x!!!\n",
kranal_rdma(tx, RANAL_MSG_GET_DONE,
&conn->rac_rxmsg->ram_u.get.ragm_desc, nob,
conn->rac_rxmsg->ram_u.get.ragm_cookie);
+
+ /* flag matched by consuming rx message */
+ kranal_consume_rxmsg(conn, NULL, 0);
return PTL_OK;
}
case PTL_MSG_PUT:
if (kiov == NULL && /* not paged */
- nob <= RANAL_MAX_IMMEDIATE && /* small enough */
+ nob <= RANAL_FMA_MAX_DATA && /* small enough */
nob <= kranal_tunables.kra_max_immediate)
break; /* send IMMEDIATE */
-
+
tx = kranal_new_tx_msg(!in_interrupt(), RANAL_MSG_PUT_REQ);
if (tx == NULL)
return PTL_NO_SPACE;
}
LASSERT (kiov == NULL);
- LASSERT (nob <= RANAL_MAX_IMMEDIATE);
+ LASSERT (nob <= RANAL_FMA_MAX_DATA);
tx = kranal_new_tx_msg(!(type == PTL_MSG_ACK ||
type == PTL_MSG_REPLY ||
- in_interrupt()),
+ in_interrupt()),
RANAL_MSG_IMMEDIATE);
if (tx == NULL)
return PTL_NO_SPACE;
kranal_tx_done(tx, rc);
return PTL_FAIL;
}
-
+
tx->tx_msg.ram_u.immediate.raim_hdr = *hdr;
tx->tx_libmsg[0] = libmsg;
kranal_launch_tx(tx, nid);
}
ptl_err_t
-kranal_send_pages (lib_nal_t *nal, void *private, lib_msg_t *cookie,
+kranal_send_pages (lib_nal_t *nal, void *private, lib_msg_t *cookie,
ptl_hdr_t *hdr, int type, ptl_nid_t nid, ptl_pid_t pid,
- unsigned int niov, ptl_kiov_t *kiov,
+ unsigned int niov, ptl_kiov_t *kiov,
size_t offset, size_t len)
{
return kranal_do_send(nal, private, cookie,
kra_tx_t *tx;
void *buffer;
int rc;
-
+
LASSERT (mlen <= rlen);
LASSERT (!in_interrupt());
/* Either all pages or all vaddrs */
LASSERT (!(kiov != NULL && iov != NULL));
+ CDEBUG(D_NET, "conn %p, rxmsg %p, libmsg %p\n", conn, rxmsg, libmsg);
+
+ if (libmsg == NULL) {
+ /* GET or ACK or portals is discarding */
+ LASSERT (mlen == 0);
+ lib_finalize(nal, NULL, libmsg, PTL_OK);
+ return PTL_OK;
+ }
+
switch(rxmsg->ram_type) {
default:
LBUG();
return PTL_FAIL;
-
+
case RANAL_MSG_IMMEDIATE:
if (mlen == 0) {
buffer = NULL;
lib_finalize(nal, NULL, libmsg, (rc == 0) ? PTL_OK : PTL_FAIL);
return PTL_OK;
- case RANAL_MSG_GET_REQ:
- /* If the GET matched, we've already handled it in
- * kranal_do_send which is called to send the REPLY. We're
- * only called here to complete the GET receive (if we needed
- * it which we don't, but I digress...) */
- LASSERT (libmsg == NULL);
- lib_finalize(nal, NULL, libmsg, PTL_OK);
- return PTL_OK;
-
case RANAL_MSG_PUT_REQ:
- if (libmsg == NULL) { /* PUT didn't match... */
- lib_finalize(nal, NULL, libmsg, PTL_OK);
- return PTL_OK;
- }
-
tx = kranal_new_tx_msg(0, RANAL_MSG_PUT_ACK);
if (tx == NULL)
return PTL_NO_SPACE;
tx->tx_conn = conn;
kranal_map_buffer(tx);
-
- tx->tx_msg.ram_u.putack.rapam_src_cookie =
+
+ tx->tx_msg.ram_u.putack.rapam_src_cookie =
conn->rac_rxmsg->ram_u.putreq.raprm_cookie;
tx->tx_msg.ram_u.putack.rapam_dst_cookie = tx->tx_cookie;
tx->tx_msg.ram_u.putack.rapam_desc.rard_key = tx->tx_map_key;
- tx->tx_msg.ram_u.putack.rapam_desc.rard_addr.AddressBits =
+ tx->tx_msg.ram_u.putack.rapam_desc.rard_addr.AddressBits =
(__u64)((unsigned long)tx->tx_buffer);
tx->tx_msg.ram_u.putack.rapam_desc.rard_nob = mlen;
tx->tx_libmsg[0] = libmsg; /* finalize this on RDMA_DONE */
kranal_post_fma(conn, tx);
-
+
/* flag matched by consuming rx message */
kranal_consume_rxmsg(conn, NULL, 0);
return PTL_OK;
ptl_err_t
kranal_recv (lib_nal_t *nal, void *private, lib_msg_t *msg,
- unsigned int niov, struct iovec *iov,
+ unsigned int niov, struct iovec *iov,
size_t offset, size_t mlen, size_t rlen)
{
return kranal_do_recv(nal, private, msg, niov, iov, NULL,
ptl_err_t
kranal_recv_pages (lib_nal_t *nal, void *private, lib_msg_t *msg,
- unsigned int niov, ptl_kiov_t *kiov,
+ unsigned int niov, ptl_kiov_t *kiov,
size_t offset, size_t mlen, size_t rlen)
{
return kranal_do_recv(nal, private, msg, niov, NULL, kiov,
if (!conn->rac_close_sent &&
time_after_eq(now, conn->rac_last_tx + conn->rac_keepalive * HZ)) {
/* not sent in a while; schedule conn so scheduler sends a keepalive */
+ CDEBUG(D_NET, "Scheduling keepalive %p->"LPX64"\n",
+ conn, conn->rac_peer->rap_nid);
kranal_schedule_conn(conn);
}
if (!conn->rac_close_recvd &&
time_after_eq(now, conn->rac_last_rx + timeout)) {
- CERROR("Nothing received from "LPX64" within %lu seconds\n",
+ CERROR("%s received from "LPX64" within %lu seconds\n",
+ (conn->rac_state == RANAL_CONN_ESTABLISHED) ?
+ "Nothing" : "CLOSE not",
conn->rac_peer->rap_nid, (now - conn->rac_last_rx)/HZ);
return -ETIMEDOUT;
}
if (conn->rac_state != RANAL_CONN_ESTABLISHED)
return 0;
-
+
/* Check the conn's queues are moving. These are "belt+braces" checks,
* in case of hardware/software errors that make this conn seem
* responsive even though it isn't progressing its message queues. */
list_for_each (ttmp, &conn->rac_fmaq) {
tx = list_entry(ttmp, kra_tx_t, tx_list);
-
+
if (time_after_eq(now, tx->tx_qtime + timeout)) {
spin_unlock_irqrestore(&conn->rac_lock, flags);
CERROR("tx on fmaq for "LPX64" blocked %lu seconds\n",
return -ETIMEDOUT;
}
}
-
+
list_for_each (ttmp, &conn->rac_rdmaq) {
tx = list_entry(ttmp, kra_tx_t, tx_list);
-
+
if (time_after_eq(now, tx->tx_qtime + timeout)) {
spin_unlock_irqrestore(&conn->rac_lock, flags);
CERROR("tx on rdmaq for "LPX64" blocked %lu seconds\n",
return -ETIMEDOUT;
}
}
-
+
list_for_each (ttmp, &conn->rac_replyq) {
tx = list_entry(ttmp, kra_tx_t, tx_list);
-
+
if (time_after_eq(now, tx->tx_qtime + timeout)) {
spin_unlock_irqrestore(&conn->rac_lock, flags);
CERROR("tx on replyq for "LPX64" blocked %lu seconds\n",
return -ETIMEDOUT;
}
}
-
+
spin_unlock_irqrestore(&conn->rac_lock, flags);
return 0;
}
case RANAL_CONN_ESTABLISHED:
kranal_close_conn_locked(conn, -ETIMEDOUT);
break;
-
+
case RANAL_CONN_CLOSING:
kranal_terminate_conn_locked(conn);
break;
}
-
+
write_unlock_irqrestore(&kranal_data.kra_global_lock, flags);
kranal_conn_decref(conn);
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);
- CDEBUG(D_WARNING,"About to handshake someone\n");
+ CDEBUG(D_NET,"About to handshake someone\n");
kranal_conn_handshake(ras->ras_sock, NULL);
kranal_free_acceptsock(ras);
- CDEBUG(D_WARNING,"Finished handshaking someone\n");
+ CDEBUG(D_NET,"Finished handshaking someone\n");
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);
-
+
list_del_init(&peer->rap_connd_list);
spin_unlock_irqrestore(&kranal_data.kra_connd_lock, flags);
set_current_state(TASK_INTERRUPTIBLE);
add_wait_queue(&kranal_data.kra_connd_waitq, &wait);
-
+
spin_unlock_irqrestore(&kranal_data.kra_connd_lock, flags);
schedule ();
-
+
set_current_state(TASK_RUNNING);
remove_wait_queue(&kranal_data.kra_connd_waitq, &wait);
}
void
-kranal_update_reaper_timeout(long timeout)
+kranal_update_reaper_timeout(long timeout)
{
unsigned long flags;
LASSERT (timeout > 0);
-
+
spin_lock_irqsave(&kranal_data.kra_reaper_lock, flags);
-
+
if (timeout < kranal_data.kra_new_min_timeout)
kranal_data.kra_new_min_timeout = timeout;
unsigned long next_check_time = jiffies;
long next_min_timeout = MAX_SCHEDULE_TIMEOUT;
long current_min_timeout = 1;
-
+
kportal_daemonize("kranal_reaper");
kportal_blockallsigs();
spin_lock_irqsave(&kranal_data.kra_reaper_lock, flags);
while (!kranal_data.kra_shutdown) {
+ /* I wake up every 'p' seconds to check for timeouts on some
+ * more peers. I try to check every connection 'n' times
+ * within the global minimum of all keepalive and timeout
+ * intervals, to ensure I attend to every connection within
+ * (n+1)/n times its timeout intervals. */
+ const int p = 1;
+ const int n = 3;
+ unsigned long min_timeout;
+ int chunk;
/* careful with the jiffy wrap... */
timeout = (long)(next_check_time - jiffies);
- if (timeout <= 0) {
-
- /* I wake up every 'p' seconds to check for
- * timeouts on some more peers. I try to check
- * every connection 'n' times within the global
- * minimum of all keepalive and timeout intervals,
- * to ensure I attend to every connection within
- * (n+1)/n times its timeout intervals. */
-
- const int p = 1;
- const int n = 3;
- unsigned long min_timeout;
- int chunk;
-
- if (kranal_data.kra_new_min_timeout != MAX_SCHEDULE_TIMEOUT) {
- /* new min timeout set: restart min timeout scan */
- next_min_timeout = MAX_SCHEDULE_TIMEOUT;
- base_index = conn_index - 1;
- if (base_index < 0)
- base_index = conn_entries - 1;
-
- if (kranal_data.kra_new_min_timeout < current_min_timeout) {
- current_min_timeout = kranal_data.kra_new_min_timeout;
- CWARN("Set new min timeout %ld\n",
- current_min_timeout);
- }
-
- kranal_data.kra_new_min_timeout = MAX_SCHEDULE_TIMEOUT;
- }
- min_timeout = current_min_timeout;
-
- spin_unlock_irqrestore(&kranal_data.kra_reaper_lock,
- flags);
-
- LASSERT (min_timeout > 0);
-
- /* Compute how many table entries to check now so I
- * get round the whole table fast enough (NB I do
- * this at fixed intervals of 'p' seconds) */
- chunk = conn_entries;
- if (min_timeout > n * p)
- chunk = (chunk * n * p) / min_timeout;
- if (chunk == 0)
- chunk = 1;
-
- for (i = 0; i < chunk; i++) {
- kranal_reaper_check(conn_index,
- &next_min_timeout);
- conn_index = (conn_index + 1) % conn_entries;
- }
+ if (timeout > 0) {
+ set_current_state(TASK_INTERRUPTIBLE);
+ add_wait_queue(&kranal_data.kra_reaper_waitq, &wait);
+
+ spin_unlock_irqrestore(&kranal_data.kra_reaper_lock, flags);
- next_check_time += p * HZ;
+ schedule_timeout(timeout);
spin_lock_irqsave(&kranal_data.kra_reaper_lock, flags);
- if (((conn_index - chunk <= base_index &&
- base_index < conn_index) ||
- (conn_index - conn_entries - chunk <= base_index &&
- base_index < conn_index - conn_entries))) {
-
- /* Scanned all conns: set current_min_timeout... */
- if (current_min_timeout != next_min_timeout) {
- current_min_timeout = next_min_timeout;
- CWARN("Set new min timeout %ld\n",
- current_min_timeout);
- }
-
- /* ...and restart min timeout scan */
- next_min_timeout = MAX_SCHEDULE_TIMEOUT;
- base_index = conn_index - 1;
- if (base_index < 0)
- base_index = conn_entries - 1;
- }
+ set_current_state(TASK_RUNNING);
+ remove_wait_queue(&kranal_data.kra_reaper_waitq, &wait);
+ continue;
}
- set_current_state(TASK_INTERRUPTIBLE);
- add_wait_queue(&kranal_data.kra_reaper_waitq, &wait);
+ if (kranal_data.kra_new_min_timeout != MAX_SCHEDULE_TIMEOUT) {
+ /* new min timeout set: restart min timeout scan */
+ next_min_timeout = MAX_SCHEDULE_TIMEOUT;
+ base_index = conn_index - 1;
+ if (base_index < 0)
+ base_index = conn_entries - 1;
+
+ if (kranal_data.kra_new_min_timeout < current_min_timeout) {
+ current_min_timeout = kranal_data.kra_new_min_timeout;
+ CDEBUG(D_NET, "Set new min timeout %ld\n",
+ current_min_timeout);
+ }
+
+ kranal_data.kra_new_min_timeout = MAX_SCHEDULE_TIMEOUT;
+ }
+ min_timeout = current_min_timeout;
spin_unlock_irqrestore(&kranal_data.kra_reaper_lock, flags);
- schedule_timeout(timeout);
+ LASSERT (min_timeout > 0);
+
+ /* Compute how many table entries to check now so I get round
+ * the whole table fast enough given that I do this at fixed
+ * intervals of 'p' seconds) */
+ chunk = conn_entries;
+ if (min_timeout > n * p)
+ chunk = (chunk * n * p) / min_timeout;
+ if (chunk == 0)
+ chunk = 1;
+
+ for (i = 0; i < chunk; i++) {
+ kranal_reaper_check(conn_index,
+ &next_min_timeout);
+ conn_index = (conn_index + 1) % conn_entries;
+ }
+
+ next_check_time += p * HZ;
spin_lock_irqsave(&kranal_data.kra_reaper_lock, flags);
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&kranal_data.kra_reaper_waitq, &wait);
+ if (((conn_index - chunk <= base_index &&
+ base_index < conn_index) ||
+ (conn_index - conn_entries - chunk <= base_index &&
+ base_index < conn_index - conn_entries))) {
+
+ /* Scanned all conns: set current_min_timeout... */
+ if (current_min_timeout != next_min_timeout) {
+ current_min_timeout = next_min_timeout;
+ CDEBUG(D_NET, "Set new min timeout %ld\n",
+ current_min_timeout);
+ }
+
+ /* ...and restart min timeout scan */
+ next_min_timeout = MAX_SCHEDULE_TIMEOUT;
+ base_index = conn_index - 1;
+ if (base_index < 0)
+ base_index = conn_entries - 1;
+ }
}
kranal_thread_fini();
for (;;) {
rrc = RapkCQDone(dev->rad_rdma_cqh, &cqid, &event_type);
- if (rrc == RAP_NOT_DONE)
+ if (rrc == RAP_NOT_DONE) {
+ CDEBUG(D_NET, "RDMA CQ %d empty\n", dev->rad_id);
return;
+ }
LASSERT (rrc == RAP_SUCCESS);
LASSERT ((event_type & RAPK_CQ_EVENT_OVERRUN) == 0);
conn = kranal_cqid2conn_locked(cqid);
if (conn == NULL) {
/* Conn was destroyed? */
- CWARN("RDMA CQID lookup %d failed\n", cqid);
+ CDEBUG(D_NET, "RDMA CQID lookup %d failed\n", cqid);
read_unlock(&kranal_data.kra_global_lock);
continue;
}
rrc = RapkRdmaDone(conn->rac_rihandle, &desc);
LASSERT (rrc == RAP_SUCCESS);
+ CDEBUG(D_NET, "Completed %p\n",
+ list_entry(conn->rac_rdmaq.next, kra_tx_t, tx_list));
+
spin_lock_irqsave(&conn->rac_lock, flags);
LASSERT (!list_empty(&conn->rac_rdmaq));
list_add_tail(&tx->tx_list, &conn->rac_fmaq);
tx->tx_qtime = jiffies;
-
+
spin_unlock_irqrestore(&conn->rac_lock, flags);
/* Get conn's fmaq processed, now I've just put something
for (;;) {
rrc = RapkCQDone(dev->rad_fma_cqh, &cqid, &event_type);
- if (rrc != RAP_NOT_DONE)
+ if (rrc == RAP_NOT_DONE) {
+ CDEBUG(D_NET, "FMA CQ %d empty\n", dev->rad_id);
return;
-
+ }
+
LASSERT (rrc == RAP_SUCCESS);
if ((event_type & RAPK_CQ_EVENT_OVERRUN) == 0) {
read_lock(&kranal_data.kra_global_lock);
-
+
conn = kranal_cqid2conn_locked(cqid);
- if (conn == NULL)
- CWARN("FMA CQID lookup %d failed\n", cqid);
- else
+ if (conn == NULL) {
+ CDEBUG(D_NET, "FMA CQID lookup %d failed\n",
+ cqid);
+ } else {
+ CDEBUG(D_NET, "FMA completed: %p CQID %d\n",
+ conn, cqid);
kranal_schedule_conn(conn);
+ }
read_unlock(&kranal_data.kra_global_lock);
continue;
CWARN("Scheduling ALL conns on device %d\n", dev->rad_id);
for (i = 0; i < kranal_data.kra_conn_hash_size; i++) {
-
+
read_lock(&kranal_data.kra_global_lock);
-
+
conns = &kranal_data.kra_conns[i];
list_for_each (tmp, conns) {
- conn = list_entry(tmp, kra_conn_t,
+ conn = list_entry(tmp, kra_conn_t,
rac_hashlist);
-
+
if (conn->rac_device == dev)
kranal_schedule_conn(conn);
}
{
int sync = (msg->ram_type & RANAL_MSG_FENCE) != 0;
RAP_RETURN rrc;
-
+
+ CDEBUG(D_NET,"%p sending msg %p %02x%s [%p for %d]\n",
+ conn, msg, msg->ram_type, sync ? "(sync)" : "",
+ immediate, immediatenob);
+
LASSERT (sizeof(*msg) <= RANAL_FMA_MAX_PREFIX);
LASSERT ((msg->ram_type == RANAL_MSG_IMMEDIATE) ?
immediatenob <= RANAL_FMA_MAX_DATA :
msg->ram_seq = conn->rac_tx_seq;
if (sync)
- rrc = RapkFmaSyncSend(conn->rac_device->rad_handle,
+ rrc = RapkFmaSyncSend(conn->rac_rihandle,
immediate, immediatenob,
msg, sizeof(*msg));
else
- rrc = RapkFmaSend(conn->rac_device->rad_handle,
+ rrc = RapkFmaSend(conn->rac_rihandle,
immediate, immediatenob,
msg, sizeof(*msg));
conn->rac_last_tx = jiffies;
conn->rac_tx_seq++;
return 0;
-
+
case RAP_NOT_DONE:
return -EAGAIN;
}
}
void
-kranal_process_fmaq (kra_conn_t *conn)
+kranal_process_fmaq (kra_conn_t *conn)
{
unsigned long flags;
int more_to_do;
/* NB 1. kranal_sendmsg() may fail if I'm out of credits right now.
* 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
- * scheduled to send the close anyway. */
+ * NB 2. Sampling rac_state here races with setting it elsewhere.
+ * But it doesn't matter if I try to send a "real" message just
+ * as I start closing because I'll get scheduled to send the
+ * close anyway. */
+
+ /* Not racing with incoming message processing! */
+ LASSERT (current == conn->rac_device->rad_scheduler);
if (conn->rac_state != RANAL_CONN_ESTABLISHED) {
if (!list_empty(&conn->rac_rdmaq)) {
/* RDMAs in progress */
LASSERT (!conn->rac_close_sent);
-
- if (time_after_eq(jiffies,
- conn->rac_last_tx +
- conn->rac_keepalive)) {
+
+ if (time_after_eq(jiffies,
+ conn->rac_last_tx +
+ conn->rac_keepalive * HZ)) {
+ CDEBUG(D_NET, "sending NOOP (rdma in progress)\n");
kranal_init_msg(&conn->rac_msg, RANAL_MSG_NOOP);
kranal_sendmsg(conn, &conn->rac_msg, NULL, 0);
}
return;
}
-
+
if (conn->rac_close_sent)
return;
+ CWARN("sending CLOSE to "LPX64"\n", conn->rac_peer->rap_nid);
kranal_init_msg(&conn->rac_msg, RANAL_MSG_CLOSE);
rc = kranal_sendmsg(conn, &conn->rac_msg, NULL, 0);
if (rc != 0)
conn->rac_close_sent = 1;
if (!conn->rac_close_recvd)
return;
-
+
write_lock_irqsave(&kranal_data.kra_global_lock, flags);
if (conn->rac_state == RANAL_CONN_CLOSING)
spin_unlock_irqrestore(&conn->rac_lock, flags);
- if (time_after_eq(jiffies,
- conn->rac_last_tx + conn->rac_keepalive)) {
+ if (time_after_eq(jiffies,
+ conn->rac_last_tx + conn->rac_keepalive * HZ)) {
+ CDEBUG(D_NET, "sending NOOP (idle)\n");
kranal_init_msg(&conn->rac_msg, RANAL_MSG_NOOP);
kranal_sendmsg(conn, &conn->rac_msg, NULL, 0);
}
return;
}
-
+
tx = list_entry(conn->rac_fmaq.next, kra_tx_t, tx_list);
list_del(&tx->tx_list);
more_to_do = !list_empty(&conn->rac_fmaq);
spin_unlock_irqrestore(&conn->rac_lock, flags);
expect_reply = 0;
+ CDEBUG(D_NET, "sending regular msg: %p, type %02x, cookie "LPX64"\n",
+ tx, tx->tx_msg.ram_type, tx->tx_cookie);
switch (tx->tx_msg.ram_type) {
default:
LBUG();
-
+
case RANAL_MSG_IMMEDIATE:
+ rc = kranal_sendmsg(conn, &tx->tx_msg,
+ tx->tx_buffer, tx->tx_nob);
+ expect_reply = 0;
+ break;
+
case RANAL_MSG_PUT_NAK:
case RANAL_MSG_PUT_DONE:
case RANAL_MSG_GET_NAK:
case RANAL_MSG_GET_DONE:
- rc = kranal_sendmsg(conn, &tx->tx_msg,
- tx->tx_buffer, tx->tx_nob);
+ rc = kranal_sendmsg(conn, &tx->tx_msg, NULL, 0);
expect_reply = 0;
break;
-
+
case RANAL_MSG_PUT_REQ:
tx->tx_msg.ram_u.putreq.raprm_cookie = tx->tx_cookie;
rc = kranal_sendmsg(conn, &tx->tx_msg, NULL, 0);
kranal_map_buffer(tx);
tx->tx_msg.ram_u.get.ragm_cookie = tx->tx_cookie;
tx->tx_msg.ram_u.get.ragm_desc.rard_key = tx->tx_map_key;
- tx->tx_msg.ram_u.get.ragm_desc.rard_addr.AddressBits =
+ tx->tx_msg.ram_u.get.ragm_desc.rard_addr.AddressBits =
(__u64)((unsigned long)tx->tx_buffer);
tx->tx_msg.ram_u.get.ragm_desc.rard_nob = tx->tx_nob;
rc = kranal_sendmsg(conn, &tx->tx_msg, NULL, 0);
if (rc == -EAGAIN) {
/* I need credits to send this. Replace tx at the head of the
* fmaq and I'll get rescheduled when credits appear */
+ CDEBUG(D_NET, "EAGAIN on %p\n", conn);
spin_lock_irqsave(&conn->rac_lock, flags);
list_add(&tx->tx_list, &conn->rac_fmaq);
spin_unlock_irqrestore(&conn->rac_lock, flags);
}
LASSERT (rc == 0);
-
+
if (!expect_reply) {
kranal_tx_done(tx, 0);
} else {
+ /* LASSERT(current) above ensures this doesn't race with reply
+ * processing */
spin_lock_irqsave(&conn->rac_lock, flags);
list_add_tail(&tx->tx_list, &conn->rac_replyq);
tx->tx_qtime = jiffies;
spin_unlock_irqrestore(&conn->rac_lock, flags);
}
- if (more_to_do)
+ if (more_to_do) {
+ CDEBUG(D_NET, "Rescheduling %p (more to do)\n", conn);
kranal_schedule_conn(conn);
+ }
}
static inline void
{
struct list_head *ttmp;
kra_tx_t *tx;
-
+ unsigned long flags;
+
+ spin_lock_irqsave(&conn->rac_lock, flags);
+
list_for_each(ttmp, &conn->rac_replyq) {
tx = list_entry(ttmp, kra_tx_t, tx_list);
-
+
+ CDEBUG(D_NET,"Checking %p %02x/"LPX64"\n",
+ tx, tx->tx_msg.ram_type, tx->tx_cookie);
+
if (tx->tx_cookie != cookie)
continue;
-
+
if (tx->tx_msg.ram_type != type) {
+ spin_unlock_irqrestore(&conn->rac_lock, flags);
CWARN("Unexpected type %x (%x expected) "
"matched reply from "LPX64"\n",
tx->tx_msg.ram_type, type,
conn->rac_peer->rap_nid);
return NULL;
}
+
+ list_del(&tx->tx_list);
+ spin_unlock_irqrestore(&conn->rac_lock, flags);
+ return tx;
}
-
- CWARN("Unmatched reply from "LPX64"\n", conn->rac_peer->rap_nid);
+
+ spin_unlock_irqrestore(&conn->rac_lock, flags);
+ CWARN("Unmatched reply %02x/"LPX64" from "LPX64"\n",
+ type, cookie, conn->rac_peer->rap_nid);
return NULL;
}
if (rrc == RAP_NOT_DONE)
return;
-
+
+ CDEBUG(D_NET, "RX on %p\n", conn);
+
LASSERT (rrc == RAP_SUCCESS);
conn->rac_last_rx = jiffies;
seq = conn->rac_rx_seq++;
msg = (kra_msg_t *)prefix;
+ /* stash message for portals callbacks they'll NULL
+ * rac_rxmsg if they consume it */
+ LASSERT (conn->rac_rxmsg == NULL);
+ conn->rac_rxmsg = msg;
+
if (msg->ram_magic != RANAL_MSG_MAGIC) {
if (__swab32(msg->ram_magic) != RANAL_MSG_MAGIC) {
CERROR("Unexpected magic %08x from "LPX64"\n",
case RANAL_MSG_GET_REQ:
kranal_swab_rdma_desc(&msg->ram_u.get.ragm_desc);
break;
-
+
default:
break;
}
msg->ram_srcnid, peer->rap_nid);
goto out;
}
-
+
if (msg->ram_connstamp != conn->rac_peer_connstamp) {
CERROR("Unexpected connstamp "LPX64"("LPX64
" expected) from "LPX64"\n",
peer->rap_nid);
goto out;
}
-
+
if (msg->ram_seq != seq) {
CERROR("Unexpected sequence number %d(%d expected) from "
LPX64"\n", msg->ram_seq, seq, peer->rap_nid);
}
if (conn->rac_close_recvd) {
- CERROR("Unexpected message %d after CLOSE from "LPX64"\n",
+ CERROR("Unexpected message %d after CLOSE from "LPX64"\n",
msg->ram_type, conn->rac_peer->rap_nid);
goto out;
}
if (msg->ram_type == RANAL_MSG_CLOSE) {
+ CWARN("RX CLOSE from "LPX64"\n", conn->rac_peer->rap_nid);
conn->rac_close_recvd = 1;
write_lock_irqsave(&kranal_data.kra_global_lock, flags);
if (conn->rac_state == RANAL_CONN_ESTABLISHED)
kranal_close_conn_locked(conn, 0);
- else if (conn->rac_close_sent)
+ else if (conn->rac_state == RANAL_CONN_CLOSING &&
+ conn->rac_close_sent)
kranal_terminate_conn_locked(conn);
write_unlock_irqrestore(&kranal_data.kra_global_lock, flags);
if (conn->rac_state != RANAL_CONN_ESTABLISHED)
goto out;
-
- conn->rac_rxmsg = msg; /* stash message for portals callbacks */
- /* they'll NULL rac_rxmsg if they consume it */
+
switch (msg->ram_type) {
case RANAL_MSG_NOOP:
/* Nothing to do; just a keepalive */
+ CDEBUG(D_NET, "RX NOOP on %p\n", conn);
break;
-
+
case RANAL_MSG_IMMEDIATE:
+ CDEBUG(D_NET, "RX IMMEDIATE on %p\n", conn);
lib_parse(&kranal_lib, &msg->ram_u.immediate.raim_hdr, conn);
break;
-
+
case RANAL_MSG_PUT_REQ:
+ CDEBUG(D_NET, "RX PUT_REQ on %p\n", conn);
lib_parse(&kranal_lib, &msg->ram_u.putreq.raprm_hdr, conn);
if (conn->rac_rxmsg == NULL) /* lib_parse matched something */
tx = kranal_new_tx_msg(0, RANAL_MSG_PUT_NAK);
if (tx == NULL)
break;
-
- tx->tx_msg.ram_u.completion.racm_cookie =
+
+ tx->tx_msg.ram_u.completion.racm_cookie =
msg->ram_u.putreq.raprm_cookie;
kranal_post_fma(conn, tx);
break;
case RANAL_MSG_PUT_NAK:
+ CDEBUG(D_NET, "RX PUT_NAK on %p\n", conn);
tx = kranal_match_reply(conn, RANAL_MSG_PUT_REQ,
msg->ram_u.completion.racm_cookie);
if (tx == NULL)
break;
-
+
LASSERT (tx->tx_buftype == RANAL_BUF_PHYS_MAPPED ||
tx->tx_buftype == RANAL_BUF_VIRT_MAPPED);
kranal_tx_done(tx, -ENOENT); /* no match */
break;
-
+
case RANAL_MSG_PUT_ACK:
+ CDEBUG(D_NET, "RX PUT_ACK on %p\n", conn);
tx = kranal_match_reply(conn, RANAL_MSG_PUT_REQ,
msg->ram_u.putack.rapam_src_cookie);
if (tx == NULL)
break;
kranal_rdma(tx, RANAL_MSG_PUT_DONE,
- &msg->ram_u.putack.rapam_desc,
+ &msg->ram_u.putack.rapam_desc,
msg->ram_u.putack.rapam_desc.rard_nob,
msg->ram_u.putack.rapam_dst_cookie);
break;
case RANAL_MSG_PUT_DONE:
+ CDEBUG(D_NET, "RX PUT_DONE on %p\n", conn);
tx = kranal_match_reply(conn, RANAL_MSG_PUT_ACK,
msg->ram_u.completion.racm_cookie);
if (tx == NULL)
break;
case RANAL_MSG_GET_REQ:
+ CDEBUG(D_NET, "RX GET_REQ on %p\n", conn);
lib_parse(&kranal_lib, &msg->ram_u.get.ragm_hdr, conn);
-
+
if (conn->rac_rxmsg == NULL) /* lib_parse matched something */
break;
tx->tx_msg.ram_u.completion.racm_cookie = msg->ram_u.get.ragm_cookie;
kranal_post_fma(conn, tx);
break;
-
+
case RANAL_MSG_GET_NAK:
+ CDEBUG(D_NET, "RX GET_NAK on %p\n", conn);
tx = kranal_match_reply(conn, RANAL_MSG_GET_REQ,
msg->ram_u.completion.racm_cookie);
if (tx == NULL)
break;
-
+
LASSERT (tx->tx_buftype == RANAL_BUF_PHYS_MAPPED ||
tx->tx_buftype == RANAL_BUF_VIRT_MAPPED);
kranal_tx_done(tx, -ENOENT); /* no match */
break;
-
+
case RANAL_MSG_GET_DONE:
+ CDEBUG(D_NET, "RX GET_DONE on %p\n", conn);
tx = kranal_match_reply(conn, RANAL_MSG_GET_REQ,
msg->ram_u.completion.racm_cookie);
if (tx == NULL)
break;
-
+
LASSERT (tx->tx_buftype == RANAL_BUF_PHYS_MAPPED ||
tx->tx_buftype == RANAL_BUF_VIRT_MAPPED);
kranal_tx_done(tx, 0);
}
void
-kranal_complete_closed_conn (kra_conn_t *conn)
+kranal_complete_closed_conn (kra_conn_t *conn)
{
kra_tx_t *tx;
LASSERT (conn->rac_state == RANAL_CONN_CLOSED);
+ LASSERT (list_empty(&conn->rac_list));
+ LASSERT (list_empty(&conn->rac_hashlist));
while (!list_empty(&conn->rac_fmaq)) {
tx = list_entry(conn->rac_fmaq.next, kra_tx_t, tx_list);
-
+
list_del(&tx->tx_list);
kranal_tx_done(tx, -ECONNABORTED);
}
-
+
LASSERT (list_empty(&conn->rac_rdmaq));
while (!list_empty(&conn->rac_replyq)) {
tx = list_entry(conn->rac_replyq.next, kra_tx_t, tx_list);
-
+
list_del(&tx->tx_list);
kranal_tx_done(tx, -ECONNABORTED);
}
while (!kranal_data.kra_shutdown) {
/* Safe: kra_shutdown only set when quiescent */
-
+
if (busy_loops++ >= RANAL_RESCHED) {
spin_unlock_irqrestore(&dev->rad_lock, flags);
spin_lock_irqsave(&dev->rad_lock, flags);
}
-
+
if (!list_empty(&dev->rad_connq)) {
/* Connection needs attention */
conn = list_entry(dev->rad_connq.next,
kranal_complete_closed_conn(conn);
kranal_conn_decref(conn);
-
+
spin_lock_irqsave(&dev->rad_lock, flags);
continue;
}
+ /* recheck device callback fired before sleeping */
+ if (dev->rad_ready)
+ continue;
+
add_wait_queue(&dev->rad_waitq, &wait);
set_current_state(TASK_INTERRUPTIBLE);
git://git.whamcloud.com / fs / lustre-release.git / commitdiff