/*
* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
*
- * Copyright (c) 2011, 2014, Intel Corporation.
+ * Copyright (c) 2011, 2017, Intel Corporation.
*
* Author: Zach Brown <zab@zabbo.net>
* Author: Peter J. Braam <braam@clusterfs.com>
* Author: Phil Schwan <phil@clusterfs.com>
* Author: Eric Barton <eric@bartonsoftware.com>
*
- * This file is part of Lustre, https://wiki.hpdd.intel.com/
+ * This file is part of Lustre, https://wiki.whamcloud.com/
*
* Portals is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
#include "socklnd.h"
-ksock_tx_t *
+struct ksock_tx *
ksocknal_alloc_tx(int type, int size)
{
- ksock_tx_t *tx = NULL;
+ struct ksock_tx *tx = NULL;
if (type == KSOCK_MSG_NOOP) {
LASSERT(size == KSOCK_NOOP_TX_SIZE);
spin_lock(&ksocknal_data.ksnd_tx_lock);
if (!list_empty(&ksocknal_data.ksnd_idle_noop_txs)) {
- tx = list_entry(ksocknal_data.ksnd_idle_noop_txs. \
- next, ksock_tx_t, tx_list);
+ tx = list_entry(ksocknal_data.ksnd_idle_noop_txs.next,
+ struct ksock_tx, tx_list);
LASSERT(tx->tx_desc_size == size);
list_del(&tx->tx_list);
}
tx->tx_zc_aborted = 0;
tx->tx_zc_capable = 0;
tx->tx_zc_checked = 0;
+ tx->tx_hstatus = LNET_MSG_STATUS_OK;
tx->tx_desc_size = size;
atomic_inc(&ksocknal_data.ksnd_nactive_txs);
return tx;
}
-ksock_tx_t *
+struct ksock_tx *
ksocknal_alloc_tx_noop(__u64 cookie, int nonblk)
{
- ksock_tx_t *tx;
+ struct ksock_tx *tx;
tx = ksocknal_alloc_tx(KSOCK_MSG_NOOP, KSOCK_NOOP_TX_SIZE);
if (tx == NULL) {
void
-ksocknal_free_tx (ksock_tx_t *tx)
+ksocknal_free_tx(struct ksock_tx *tx)
{
atomic_dec(&ksocknal_data.ksnd_nactive_txs);
}
static int
-ksocknal_send_iov (ksock_conn_t *conn, ksock_tx_t *tx)
+ksocknal_send_iov(struct ksock_conn *conn, struct ksock_tx *tx,
+ struct kvec *scratch_iov)
{
struct kvec *iov = tx->tx_iov;
- int nob;
- int rc;
+ int nob;
+ int rc;
- LASSERT (tx->tx_niov > 0);
+ LASSERT(tx->tx_niov > 0);
- /* Never touch tx->tx_iov inside ksocknal_lib_send_iov() */
- rc = ksocknal_lib_send_iov(conn, tx);
+ /* Never touch tx->tx_iov inside ksocknal_lib_send_iov() */
+ rc = ksocknal_lib_send_iov(conn, tx, scratch_iov);
- if (rc <= 0) /* sent nothing? */
- return (rc);
+ if (rc <= 0) /* sent nothing? */
+ return rc;
- nob = rc;
- LASSERT (nob <= tx->tx_resid);
- tx->tx_resid -= nob;
+ nob = rc;
+ LASSERT(nob <= tx->tx_resid);
+ tx->tx_resid -= nob;
- /* "consume" iov */
- do {
- LASSERT (tx->tx_niov > 0);
+ /* "consume" iov */
+ do {
+ LASSERT(tx->tx_niov > 0);
- if (nob < (int) iov->iov_len) {
+ if (nob < (int) iov->iov_len) {
iov->iov_base += nob;
- iov->iov_len -= nob;
- return (rc);
- }
+ iov->iov_len -= nob;
+ return rc;
+ }
- nob -= iov->iov_len;
- tx->tx_iov = ++iov;
- tx->tx_niov--;
- } while (nob != 0);
+ nob -= iov->iov_len;
+ tx->tx_iov = ++iov;
+ tx->tx_niov--;
+ } while (nob != 0);
- return (rc);
+ return rc;
}
static int
-ksocknal_send_kiov (ksock_conn_t *conn, ksock_tx_t *tx)
+ksocknal_send_kiov(struct ksock_conn *conn, struct ksock_tx *tx,
+ struct kvec *scratch_iov)
{
- lnet_kiov_t *kiov = tx->tx_kiov;
- int nob;
- int rc;
+ struct bio_vec *kiov = tx->tx_kiov;
+ int nob;
+ int rc;
- LASSERT (tx->tx_niov == 0);
- LASSERT (tx->tx_nkiov > 0);
+ LASSERT(tx->tx_niov == 0);
+ LASSERT(tx->tx_nkiov > 0);
- /* Never touch tx->tx_kiov inside ksocknal_lib_send_kiov() */
- rc = ksocknal_lib_send_kiov(conn, tx);
+ /* Never touch tx->tx_kiov inside ksocknal_lib_send_kiov() */
+ rc = ksocknal_lib_send_kiov(conn, tx, scratch_iov);
- if (rc <= 0) /* sent nothing? */
- return (rc);
+ if (rc <= 0) /* sent nothing? */
+ return rc;
- nob = rc;
- LASSERT (nob <= tx->tx_resid);
- tx->tx_resid -= nob;
+ nob = rc;
+ LASSERT(nob <= tx->tx_resid);
+ tx->tx_resid -= nob;
- /* "consume" kiov */
- do {
- LASSERT(tx->tx_nkiov > 0);
+ /* "consume" kiov */
+ do {
+ LASSERT(tx->tx_nkiov > 0);
- if (nob < (int)kiov->kiov_len) {
- kiov->kiov_offset += nob;
- kiov->kiov_len -= nob;
- return rc;
- }
+ if (nob < (int)kiov->bv_len) {
+ kiov->bv_offset += nob;
+ kiov->bv_len -= nob;
+ return rc;
+ }
- nob -= (int)kiov->kiov_len;
- tx->tx_kiov = ++kiov;
- tx->tx_nkiov--;
- } while (nob != 0);
+ nob -= (int)kiov->bv_len;
+ tx->tx_kiov = ++kiov;
+ tx->tx_nkiov--;
+ } while (nob != 0);
- return (rc);
+ return rc;
}
static int
-ksocknal_transmit(ksock_conn_t *conn, ksock_tx_t *tx)
+ksocknal_transmit(struct ksock_conn *conn, struct ksock_tx *tx,
+ struct kvec *scratch_iov)
{
int rc;
int bufnob;
- if (ksocknal_data.ksnd_stall_tx != 0) {
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(cfs_time_seconds(ksocknal_data.ksnd_stall_tx));
- }
+ if (ksocknal_data.ksnd_stall_tx != 0)
+ schedule_timeout_uninterruptible(
+ cfs_time_seconds(ksocknal_data.ksnd_stall_tx));
LASSERT(tx->tx_resid != 0);
- rc = ksocknal_connsock_addref(conn);
- if (rc != 0) {
- LASSERT (conn->ksnc_closing);
- return (-ESHUTDOWN);
- }
+ rc = ksocknal_connsock_addref(conn);
+ if (rc != 0) {
+ LASSERT(conn->ksnc_closing);
+ return -ESHUTDOWN;
+ }
- do {
- if (ksocknal_data.ksnd_enomem_tx > 0) {
- /* testing... */
- ksocknal_data.ksnd_enomem_tx--;
- rc = -EAGAIN;
- } else if (tx->tx_niov != 0) {
- rc = ksocknal_send_iov (conn, tx);
- } else {
- rc = ksocknal_send_kiov (conn, tx);
- }
+ do {
+ if (ksocknal_data.ksnd_enomem_tx > 0) {
+ /* testing... */
+ ksocknal_data.ksnd_enomem_tx--;
+ rc = -EAGAIN;
+ } else if (tx->tx_niov != 0) {
+ rc = ksocknal_send_iov(conn, tx, scratch_iov);
+ } else {
+ rc = ksocknal_send_kiov(conn, tx, scratch_iov);
+ }
bufnob = conn->ksnc_sock->sk->sk_wmem_queued;
- if (rc > 0) /* sent something? */
- conn->ksnc_tx_bufnob += rc; /* account it */
+ if (rc > 0) /* sent something? */
+ conn->ksnc_tx_bufnob += rc; /* account it */
if (bufnob < conn->ksnc_tx_bufnob) {
/* allocated send buffer bytes < computed; infer
* something got ACKed */
- conn->ksnc_tx_deadline =
- cfs_time_shift(*ksocknal_tunables.ksnd_timeout);
- conn->ksnc_peer->ksnp_last_alive = cfs_time_current();
+ conn->ksnc_tx_deadline = ktime_get_seconds() +
+ lnet_get_lnd_timeout();
+ conn->ksnc_peer->ksnp_last_alive = ktime_get_seconds();
conn->ksnc_tx_bufnob = bufnob;
smp_mb();
}
if (rc <= 0) { /* Didn't write anything? */
+ /* some stacks return 0 instead of -EAGAIN */
+ if (rc == 0)
+ rc = -EAGAIN;
- if (rc == 0) /* some stacks return 0 instead of -EAGAIN */
- rc = -EAGAIN;
-
- /* Check if EAGAIN is due to memory pressure */
- if(rc == -EAGAIN && ksocknal_lib_memory_pressure(conn))
- rc = -ENOMEM;
+ /* Check if EAGAIN is due to memory pressure */
+ if (rc == -EAGAIN && ksocknal_lib_memory_pressure(conn))
+ rc = -ENOMEM;
- break;
- }
+ break;
+ }
- /* socket's wmem_queued now includes 'rc' bytes */
+ /* socket's wmem_queued now includes 'rc' bytes */
atomic_sub (rc, &conn->ksnc_tx_nob);
- rc = 0;
+ rc = 0;
- } while (tx->tx_resid != 0);
+ } while (tx->tx_resid != 0);
- ksocknal_connsock_decref(conn);
- return (rc);
+ ksocknal_connsock_decref(conn);
+ return rc;
}
static int
-ksocknal_recv_iov (ksock_conn_t *conn)
+ksocknal_recv_iov(struct ksock_conn *conn, struct kvec *scratchiov)
{
struct kvec *iov = conn->ksnc_rx_iov;
- int nob;
- int rc;
+ int nob;
+ int rc;
- LASSERT (conn->ksnc_rx_niov > 0);
+ LASSERT(conn->ksnc_rx_niov > 0);
/* Never touch conn->ksnc_rx_iov or change connection
- * status inside ksocknal_lib_recv_iov */
- rc = ksocknal_lib_recv_iov(conn);
+ * status inside ksocknal_lib_recv_iov */
+ rc = ksocknal_lib_recv_iov(conn, scratchiov);
- if (rc <= 0)
- return (rc);
+ if (rc <= 0)
+ return rc;
- /* received something... */
- nob = rc;
+ /* received something... */
+ nob = rc;
- conn->ksnc_peer->ksnp_last_alive = cfs_time_current();
- conn->ksnc_rx_deadline =
- cfs_time_shift(*ksocknal_tunables.ksnd_timeout);
+ conn->ksnc_peer->ksnp_last_alive = ktime_get_seconds();
+ conn->ksnc_rx_deadline = ktime_get_seconds() +
+ lnet_get_lnd_timeout();
smp_mb(); /* order with setting rx_started */
conn->ksnc_rx_started = 1;
conn->ksnc_rx_nob_wanted -= nob;
conn->ksnc_rx_nob_left -= nob;
- do {
- LASSERT (conn->ksnc_rx_niov > 0);
+ do {
+ LASSERT(conn->ksnc_rx_niov > 0);
- if (nob < (int)iov->iov_len) {
- iov->iov_len -= nob;
+ if (nob < (int)iov->iov_len) {
+ iov->iov_len -= nob;
iov->iov_base += nob;
- return (-EAGAIN);
- }
+ return -EAGAIN;
+ }
- nob -= iov->iov_len;
- conn->ksnc_rx_iov = ++iov;
- conn->ksnc_rx_niov--;
- } while (nob != 0);
+ nob -= iov->iov_len;
+ conn->ksnc_rx_iov = ++iov;
+ conn->ksnc_rx_niov--;
+ } while (nob != 0);
- return (rc);
+ return rc;
}
static int
-ksocknal_recv_kiov (ksock_conn_t *conn)
+ksocknal_recv_kiov(struct ksock_conn *conn, struct page **rx_scratch_pgs,
+ struct kvec *scratch_iov)
{
- lnet_kiov_t *kiov = conn->ksnc_rx_kiov;
- int nob;
- int rc;
- LASSERT (conn->ksnc_rx_nkiov > 0);
+ struct bio_vec *kiov = conn->ksnc_rx_kiov;
+ int nob;
+ int rc;
+ LASSERT(conn->ksnc_rx_nkiov > 0);
/* Never touch conn->ksnc_rx_kiov or change connection
- * status inside ksocknal_lib_recv_iov */
- rc = ksocknal_lib_recv_kiov(conn);
+ * status inside ksocknal_lib_recv_iov */
+ rc = ksocknal_lib_recv_kiov(conn, rx_scratch_pgs, scratch_iov);
- if (rc <= 0)
- return (rc);
+ if (rc <= 0)
+ return rc;
- /* received something... */
- nob = rc;
+ /* received something... */
+ nob = rc;
- conn->ksnc_peer->ksnp_last_alive = cfs_time_current();
- conn->ksnc_rx_deadline =
- cfs_time_shift(*ksocknal_tunables.ksnd_timeout);
+ conn->ksnc_peer->ksnp_last_alive = ktime_get_seconds();
+ conn->ksnc_rx_deadline = ktime_get_seconds() +
+ lnet_get_lnd_timeout();
smp_mb(); /* order with setting rx_started */
conn->ksnc_rx_started = 1;
conn->ksnc_rx_nob_wanted -= nob;
conn->ksnc_rx_nob_left -= nob;
- do {
- LASSERT (conn->ksnc_rx_nkiov > 0);
+ do {
+ LASSERT(conn->ksnc_rx_nkiov > 0);
- if (nob < (int) kiov->kiov_len) {
- kiov->kiov_offset += nob;
- kiov->kiov_len -= nob;
- return -EAGAIN;
- }
+ if (nob < (int) kiov->bv_len) {
+ kiov->bv_offset += nob;
+ kiov->bv_len -= nob;
+ return -EAGAIN;
+ }
- nob -= kiov->kiov_len;
- conn->ksnc_rx_kiov = ++kiov;
- conn->ksnc_rx_nkiov--;
- } while (nob != 0);
+ nob -= kiov->bv_len;
+ conn->ksnc_rx_kiov = ++kiov;
+ conn->ksnc_rx_nkiov--;
+ } while (nob != 0);
- return 1;
+ return 1;
}
static int
-ksocknal_receive (ksock_conn_t *conn)
+ksocknal_receive(struct ksock_conn *conn, struct page **rx_scratch_pgs,
+ struct kvec *scratch_iov)
{
- /* Return 1 on success, 0 on EOF, < 0 on error.
- * Caller checks ksnc_rx_nob_wanted to determine
- * progress/completion. */
- int rc;
- ENTRY;
+ /* Return 1 on success, 0 on EOF, < 0 on error.
+ * Caller checks ksnc_rx_nob_wanted to determine
+ * progress/completion. */
+ int rc;
+ ENTRY;
+
+ if (ksocknal_data.ksnd_stall_rx != 0)
+ schedule_timeout_uninterruptible(
+ cfs_time_seconds(ksocknal_data.ksnd_stall_rx));
- if (ksocknal_data.ksnd_stall_rx != 0) {
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(cfs_time_seconds(ksocknal_data.ksnd_stall_rx));
+ rc = ksocknal_connsock_addref(conn);
+ if (rc != 0) {
+ LASSERT(conn->ksnc_closing);
+ return -ESHUTDOWN;
}
- rc = ksocknal_connsock_addref(conn);
- if (rc != 0) {
- LASSERT (conn->ksnc_closing);
- return (-ESHUTDOWN);
- }
+ for (;;) {
+ if (conn->ksnc_rx_niov != 0)
+ rc = ksocknal_recv_iov(conn, scratch_iov);
+ else
+ rc = ksocknal_recv_kiov(conn, rx_scratch_pgs,
+ scratch_iov);
- for (;;) {
- if (conn->ksnc_rx_niov != 0)
- rc = ksocknal_recv_iov (conn);
- else
- rc = ksocknal_recv_kiov (conn);
-
- if (rc <= 0) {
- /* error/EOF or partial receive */
- if (rc == -EAGAIN) {
- rc = 1;
- } else if (rc == 0 && conn->ksnc_rx_started) {
- /* EOF in the middle of a message */
- rc = -EPROTO;
- }
- break;
- }
+ if (rc <= 0) {
+ /* error/EOF or partial receive */
+ if (rc == -EAGAIN) {
+ rc = 1;
+ } else if (rc == 0 && conn->ksnc_rx_started) {
+ /* EOF in the middle of a message */
+ rc = -EPROTO;
+ }
+ break;
+ }
- /* Completed a fragment */
+ /* Completed a fragment */
- if (conn->ksnc_rx_nob_wanted == 0) {
- rc = 1;
- break;
- }
- }
+ if (conn->ksnc_rx_nob_wanted == 0) {
+ rc = 1;
+ break;
+ }
+ }
- ksocknal_connsock_decref(conn);
- RETURN (rc);
+ ksocknal_connsock_decref(conn);
+ RETURN(rc);
}
void
-ksocknal_tx_done(struct lnet_ni *ni, ksock_tx_t *tx)
+ksocknal_tx_done(struct lnet_ni *ni, struct ksock_tx *tx, int rc)
{
struct lnet_msg *lnetmsg = tx->tx_lnetmsg;
- int rc = (tx->tx_resid == 0 && !tx->tx_zc_aborted) ? 0 : -EIO;
+ enum lnet_msg_hstatus hstatus = tx->tx_hstatus;
ENTRY;
- LASSERT(ni != NULL || tx->tx_conn != NULL);
+ LASSERT(ni != NULL || tx->tx_conn != NULL);
- if (tx->tx_conn != NULL)
- ksocknal_conn_decref(tx->tx_conn);
+ if (!rc && (tx->tx_resid != 0 || tx->tx_zc_aborted)) {
+ rc = -EIO;
+ if (hstatus == LNET_MSG_STATUS_OK)
+ hstatus = LNET_MSG_STATUS_LOCAL_ERROR;
+ }
- if (ni == NULL && tx->tx_conn != NULL)
- ni = tx->tx_conn->ksnc_peer->ksnp_ni;
+ if (tx->tx_conn != NULL)
+ ksocknal_conn_decref(tx->tx_conn);
- ksocknal_free_tx (tx);
- if (lnetmsg != NULL) /* KSOCK_MSG_NOOP go without lnetmsg */
- lnet_finalize (ni, lnetmsg, rc);
+ ksocknal_free_tx(tx);
+ if (lnetmsg != NULL) { /* KSOCK_MSG_NOOP go without lnetmsg */
+ lnetmsg->msg_health_status = hstatus;
+ lnet_finalize(lnetmsg, rc);
+ }
- EXIT;
+ EXIT;
}
void
ksocknal_txlist_done(struct lnet_ni *ni, struct list_head *txlist, int error)
{
- ksock_tx_t *tx;
+ struct ksock_tx *tx;
while (!list_empty(txlist)) {
- tx = list_entry(txlist->next, ksock_tx_t, tx_list);
-
- if (error && tx->tx_lnetmsg != NULL) {
- CNETERR("Deleting packet type %d len %d %s->%s\n",
- le32_to_cpu (tx->tx_lnetmsg->msg_hdr.type),
- le32_to_cpu (tx->tx_lnetmsg->msg_hdr.payload_length),
- libcfs_nid2str(le64_to_cpu(tx->tx_lnetmsg->msg_hdr.src_nid)),
- libcfs_nid2str(le64_to_cpu(tx->tx_lnetmsg->msg_hdr.dest_nid)));
- } else if (error) {
- CNETERR("Deleting noop packet\n");
- }
+ tx = list_entry(txlist->next, struct ksock_tx, tx_list);
+
+ if (error && tx->tx_lnetmsg != NULL) {
+ CNETERR("Deleting packet type %d len %d %s->%s\n",
+ le32_to_cpu(tx->tx_lnetmsg->msg_hdr.type),
+ le32_to_cpu(tx->tx_lnetmsg->msg_hdr.payload_length),
+ libcfs_nid2str(le64_to_cpu(tx->tx_lnetmsg->msg_hdr.src_nid)),
+ libcfs_nid2str(le64_to_cpu(tx->tx_lnetmsg->msg_hdr.dest_nid)));
+ } else if (error) {
+ CNETERR("Deleting noop packet\n");
+ }
list_del(&tx->tx_list);
- LASSERT (atomic_read(&tx->tx_refcount) == 1);
- ksocknal_tx_done (ni, tx);
- }
+ if (tx->tx_hstatus == LNET_MSG_STATUS_OK) {
+ if (error == -ETIMEDOUT)
+ tx->tx_hstatus =
+ LNET_MSG_STATUS_LOCAL_TIMEOUT;
+ else if (error == -ENETDOWN ||
+ error == -EHOSTUNREACH ||
+ error == -ENETUNREACH ||
+ error == -ECONNREFUSED ||
+ error == -ECONNRESET)
+ tx->tx_hstatus = LNET_MSG_STATUS_REMOTE_DROPPED;
+ /*
+ * for all other errors we don't want to
+ * retransmit
+ */
+ else if (error)
+ tx->tx_hstatus = LNET_MSG_STATUS_LOCAL_ERROR;
+ }
+
+ LASSERT(atomic_read(&tx->tx_refcount) == 1);
+ ksocknal_tx_done(ni, tx, error);
+ }
}
static void
-ksocknal_check_zc_req(ksock_tx_t *tx)
+ksocknal_check_zc_req(struct ksock_tx *tx)
{
- ksock_conn_t *conn = tx->tx_conn;
- ksock_peer_ni_t *peer_ni = conn->ksnc_peer;
+ struct ksock_conn *conn = tx->tx_conn;
+ struct ksock_peer_ni *peer_ni = conn->ksnc_peer;
/* Set tx_msg.ksm_zc_cookies[0] to a unique non-zero cookie and add tx
* to ksnp_zc_req_list if some fragment of this message should be sent
spin_lock(&peer_ni->ksnp_lock);
/* ZC_REQ is going to be pinned to the peer_ni */
- tx->tx_deadline =
- cfs_time_shift(*ksocknal_tunables.ksnd_timeout);
+ tx->tx_deadline = ktime_get_seconds() +
+ lnet_get_lnd_timeout();
LASSERT (tx->tx_msg.ksm_zc_cookies[0] == 0);
}
static void
-ksocknal_uncheck_zc_req(ksock_tx_t *tx)
+ksocknal_uncheck_zc_req(struct ksock_tx *tx)
{
- ksock_peer_ni_t *peer_ni = tx->tx_conn->ksnc_peer;
+ struct ksock_peer_ni *peer_ni = tx->tx_conn->ksnc_peer;
LASSERT(tx->tx_msg.ksm_type != KSOCK_MSG_NOOP);
LASSERT(tx->tx_zc_capable);
}
static int
-ksocknal_process_transmit (ksock_conn_t *conn, ksock_tx_t *tx)
+ksocknal_process_transmit(struct ksock_conn *conn, struct ksock_tx *tx,
+ struct kvec *scratch_iov)
{
- int rc;
+ int rc;
+ bool error_sim = false;
- if (tx->tx_zc_capable && !tx->tx_zc_checked)
- ksocknal_check_zc_req(tx);
+ if (lnet_send_error_simulation(tx->tx_lnetmsg, &tx->tx_hstatus)) {
+ error_sim = true;
+ rc = -EINVAL;
+ goto simulate_error;
+ }
- rc = ksocknal_transmit (conn, tx);
+ if (tx->tx_zc_capable && !tx->tx_zc_checked)
+ ksocknal_check_zc_req(tx);
- CDEBUG (D_NET, "send(%d) %d\n", tx->tx_resid, rc);
+ rc = ksocknal_transmit(conn, tx, scratch_iov);
- if (tx->tx_resid == 0) {
- /* Sent everything OK */
- LASSERT (rc == 0);
+ CDEBUG(D_NET, "send(%d) %d\n", tx->tx_resid, rc);
- return (0);
- }
+ if (tx->tx_resid == 0) {
+ /* Sent everything OK */
+ LASSERT(rc == 0);
- if (rc == -EAGAIN)
- return (rc);
+ return 0;
+ }
- if (rc == -ENOMEM) {
- static int counter;
+ if (rc == -EAGAIN)
+ return rc;
- counter++; /* exponential backoff warnings */
- if ((counter & (-counter)) == counter)
- CWARN("%u ENOMEM tx %p (%u allocated)\n",
+ if (rc == -ENOMEM) {
+ static int counter;
+
+ counter++; /* exponential backoff warnings */
+ if ((counter & (-counter)) == counter)
+ CWARN("%u ENOMEM tx %p (%u allocated)\n",
counter, conn, atomic_read(&libcfs_kmemory));
- /* Queue on ksnd_enomem_conns for retry after a timeout */
+ /* Queue on ksnd_enomem_conns for retry after a timeout */
spin_lock_bh(&ksocknal_data.ksnd_reaper_lock);
- /* enomem list takes over scheduler's ref... */
- LASSERT (conn->ksnc_tx_scheduled);
+ /* enomem list takes over scheduler's ref... */
+ LASSERT(conn->ksnc_tx_scheduled);
list_add_tail(&conn->ksnc_tx_list,
- &ksocknal_data.ksnd_enomem_conns);
- if (!cfs_time_aftereq(cfs_time_add(cfs_time_current(),
- SOCKNAL_ENOMEM_RETRY),
- ksocknal_data.ksnd_reaper_waketime))
+ &ksocknal_data.ksnd_enomem_conns);
+ if (ktime_get_seconds() + SOCKNAL_ENOMEM_RETRY <
+ ksocknal_data.ksnd_reaper_waketime)
wake_up(&ksocknal_data.ksnd_reaper_waitq);
spin_unlock_bh(&ksocknal_data.ksnd_reaper_lock);
+
+ /*
+ * set the health status of the message which determines
+ * whether we should retry the transmit
+ */
+ tx->tx_hstatus = LNET_MSG_STATUS_LOCAL_ERROR;
return (rc);
}
- /* Actual error */
- LASSERT (rc < 0);
+simulate_error:
- if (!conn->ksnc_closing) {
- switch (rc) {
- case -ECONNRESET:
+ /* Actual error */
+ LASSERT(rc < 0);
+
+ if (!error_sim) {
+ /*
+ * set the health status of the message which determines
+ * whether we should retry the transmit
+ */
+ if (rc == -ETIMEDOUT)
+ tx->tx_hstatus = LNET_MSG_STATUS_REMOTE_TIMEOUT;
+ else
+ tx->tx_hstatus = LNET_MSG_STATUS_LOCAL_ERROR;
+ }
+
+ if (!conn->ksnc_closing) {
+ switch (rc) {
+ case -ECONNRESET:
LCONSOLE_WARN("Host %pI4h reset our connection "
- "while we were sending data; it may have "
- "rebooted.\n",
+ "while we were sending data; it may have "
+ "rebooted.\n",
&conn->ksnc_ipaddr);
- break;
- default:
- LCONSOLE_WARN("There was an unexpected network error "
+ break;
+ default:
+ LCONSOLE_WARN("There was an unexpected network error "
"while writing to %pI4h: %d.\n",
&conn->ksnc_ipaddr, rc);
- break;
- }
+ break;
+ }
CDEBUG(D_NET, "[%p] Error %d on write to %s ip %pI4h:%d\n",
conn, rc, libcfs_id2str(conn->ksnc_peer->ksnp_id),
&conn->ksnc_ipaddr, conn->ksnc_port);
- }
+ }
- if (tx->tx_zc_checked)
- ksocknal_uncheck_zc_req(tx);
+ if (tx->tx_zc_checked)
+ ksocknal_uncheck_zc_req(tx);
- /* it's not an error if conn is being closed */
- ksocknal_close_conn_and_siblings (conn,
- (conn->ksnc_closing) ? 0 : rc);
+ /* it's not an error if conn is being closed */
+ ksocknal_close_conn_and_siblings(conn,
+ (conn->ksnc_closing) ? 0 : rc);
- return (rc);
+ return rc;
}
static void
-ksocknal_launch_connection_locked (ksock_route_t *route)
+ksocknal_launch_connection_locked(struct ksock_route *route)
{
/* called holding write lock on ksnd_global_lock */
}
void
-ksocknal_launch_all_connections_locked (ksock_peer_ni_t *peer_ni)
+ksocknal_launch_all_connections_locked(struct ksock_peer_ni *peer_ni)
{
- ksock_route_t *route;
+ struct ksock_route *route;
/* called holding write lock on ksnd_global_lock */
for (;;) {
}
}
-ksock_conn_t *
-ksocknal_find_conn_locked(ksock_peer_ni_t *peer_ni, ksock_tx_t *tx, int nonblk)
+struct ksock_conn *
+ksocknal_find_conn_locked(struct ksock_peer_ni *peer_ni, struct ksock_tx *tx, int nonblk)
{
struct list_head *tmp;
- ksock_conn_t *conn;
- ksock_conn_t *typed = NULL;
- ksock_conn_t *fallback = NULL;
- int tnob = 0;
- int fnob = 0;
+ struct ksock_conn *conn;
+ struct ksock_conn *typed = NULL;
+ struct ksock_conn *fallback = NULL;
+ int tnob = 0;
+ int fnob = 0;
list_for_each(tmp, &peer_ni->ksnp_conns) {
- ksock_conn_t *c = list_entry(tmp, ksock_conn_t, ksnc_list);
- int nob = atomic_read(&c->ksnc_tx_nob) +
- c->ksnc_sock->sk->sk_wmem_queued;
- int rc;
+ struct ksock_conn *c = list_entry(tmp, struct ksock_conn,
+ ksnc_list);
+ int nob = atomic_read(&c->ksnc_tx_nob) +
+ c->ksnc_sock->sk->sk_wmem_queued;
+ int rc;
LASSERT (!c->ksnc_closing);
LASSERT (c->ksnc_proto != NULL &&
case SOCKNAL_MATCH_YES: /* typed connection */
if (typed == NULL || tnob > nob ||
(tnob == nob && *ksocknal_tunables.ksnd_round_robin &&
- cfs_time_after(typed->ksnc_tx_last_post, c->ksnc_tx_last_post))) {
+ typed->ksnc_tx_last_post > c->ksnc_tx_last_post)) {
typed = c;
tnob = nob;
}
case SOCKNAL_MATCH_MAY: /* fallback connection */
if (fallback == NULL || fnob > nob ||
(fnob == nob && *ksocknal_tunables.ksnd_round_robin &&
- cfs_time_after(fallback->ksnc_tx_last_post, c->ksnc_tx_last_post))) {
+ fallback->ksnc_tx_last_post > c->ksnc_tx_last_post)) {
fallback = c;
fnob = nob;
}
conn = (typed != NULL) ? typed : fallback;
if (conn != NULL)
- conn->ksnc_tx_last_post = cfs_time_current();
+ conn->ksnc_tx_last_post = ktime_get_seconds();
return conn;
}
void
-ksocknal_tx_prep(ksock_conn_t *conn, ksock_tx_t *tx)
+ksocknal_tx_prep(struct ksock_conn *conn, struct ksock_tx *tx)
{
conn->ksnc_proto->pro_pack(tx);
}
void
-ksocknal_queue_tx_locked (ksock_tx_t *tx, ksock_conn_t *conn)
+ksocknal_queue_tx_locked(struct ksock_tx *tx, struct ksock_conn *conn)
{
- ksock_sched_t *sched = conn->ksnc_scheduler;
- struct ksock_msg *msg = &tx->tx_msg;
- ksock_tx_t *ztx = NULL;
- int bufnob = 0;
+ struct ksock_sched *sched = conn->ksnc_scheduler;
+ struct ksock_msg *msg = &tx->tx_msg;
+ struct ksock_tx *ztx = NULL;
+ int bufnob = 0;
/* called holding global lock (read or irq-write) and caller may
* not have dropped this lock between finding conn and calling me,
if (list_empty(&conn->ksnc_tx_queue) && bufnob == 0) {
/* First packet starts the timeout */
- conn->ksnc_tx_deadline =
- cfs_time_shift(*ksocknal_tunables.ksnd_timeout);
+ conn->ksnc_tx_deadline = ktime_get_seconds() +
+ lnet_get_lnd_timeout();
if (conn->ksnc_tx_bufnob > 0) /* something got ACKed */
- conn->ksnc_peer->ksnp_last_alive = cfs_time_current();
+ conn->ksnc_peer->ksnp_last_alive = ktime_get_seconds();
conn->ksnc_tx_bufnob = 0;
smp_mb(); /* order with adding to tx_queue */
}
}
-ksock_route_t *
-ksocknal_find_connectable_route_locked (ksock_peer_ni_t *peer_ni)
+struct ksock_route *
+ksocknal_find_connectable_route_locked(struct ksock_peer_ni *peer_ni)
{
- cfs_time_t now = cfs_time_current();
- struct list_head *tmp;
- ksock_route_t *route;
+ time64_t now = ktime_get_seconds();
+ struct list_head *tmp;
+ struct ksock_route *route;
list_for_each(tmp, &peer_ni->ksnp_routes) {
- route = list_entry(tmp, ksock_route_t, ksnr_list);
+ route = list_entry(tmp, struct ksock_route, ksnr_list);
LASSERT (!route->ksnr_connecting || route->ksnr_scheduled);
continue;
if (!(route->ksnr_retry_interval == 0 || /* first attempt */
- cfs_time_aftereq(now, route->ksnr_timeout))) {
+ now >= route->ksnr_timeout)) {
CDEBUG(D_NET,
"Too soon to retry route %pI4h "
- "(cnted %d, interval %ld, %ld secs later)\n",
+ "(cnted %d, interval %lld, %lld secs later)\n",
&route->ksnr_ipaddr,
route->ksnr_connected,
route->ksnr_retry_interval,
- cfs_duration_sec(route->ksnr_timeout - now));
+ route->ksnr_timeout - now);
continue;
}
return (NULL);
}
-ksock_route_t *
-ksocknal_find_connecting_route_locked (ksock_peer_ni_t *peer_ni)
+struct ksock_route *
+ksocknal_find_connecting_route_locked(struct ksock_peer_ni *peer_ni)
{
- struct list_head *tmp;
- ksock_route_t *route;
+ struct list_head *tmp;
+ struct ksock_route *route;
list_for_each(tmp, &peer_ni->ksnp_routes) {
- route = list_entry(tmp, ksock_route_t, ksnr_list);
+ route = list_entry(tmp, struct ksock_route, ksnr_list);
LASSERT (!route->ksnr_connecting || route->ksnr_scheduled);
}
int
-ksocknal_launch_packet(struct lnet_ni *ni, ksock_tx_t *tx,
+ksocknal_launch_packet(struct lnet_ni *ni, struct ksock_tx *tx,
struct lnet_process_id id)
{
- ksock_peer_ni_t *peer_ni;
- ksock_conn_t *conn;
- rwlock_t *g_lock;
- int retry;
- int rc;
+ struct ksock_peer_ni *peer_ni;
+ struct ksock_conn *conn;
+ rwlock_t *g_lock;
+ int retry;
+ int rc;
LASSERT (tx->tx_conn == NULL);
if (peer_ni->ksnp_accepting > 0 ||
ksocknal_find_connecting_route_locked (peer_ni) != NULL) {
/* the message is going to be pinned to the peer_ni */
- tx->tx_deadline =
- cfs_time_shift(*ksocknal_tunables.ksnd_timeout);
+ tx->tx_deadline = ktime_get_seconds() +
+ lnet_get_lnd_timeout();
/* Queue the message until a connection is established */
list_add_tail(&tx->tx_list, &peer_ni->ksnp_tx_queue);
/* NB Routes may be ignored if connections to them failed recently */
CNETERR("No usable routes to %s\n", libcfs_id2str(id));
+ tx->tx_hstatus = LNET_MSG_STATUS_REMOTE_ERROR;
return (-EHOSTUNREACH);
}
int mpflag = 1;
int type = lntmsg->msg_type;
struct lnet_process_id target = lntmsg->msg_target;
- unsigned int payload_niov = lntmsg->msg_niov;
+ unsigned int payload_niov = lntmsg->msg_niov;
struct kvec *payload_iov = lntmsg->msg_iov;
- lnet_kiov_t *payload_kiov = lntmsg->msg_kiov;
- unsigned int payload_offset = lntmsg->msg_offset;
- unsigned int payload_nob = lntmsg->msg_len;
- ksock_tx_t *tx;
- int desc_size;
- int rc;
+ struct bio_vec *payload_kiov = lntmsg->msg_kiov;
+ unsigned int payload_offset = lntmsg->msg_offset;
+ unsigned int payload_nob = lntmsg->msg_len;
+ struct ksock_tx *tx;
+ int desc_size;
+ int rc;
/* NB 'private' is different depending on what we're sending.
* Just ignore it... */
LASSERT (!in_interrupt ());
if (payload_iov != NULL)
- desc_size = offsetof(ksock_tx_t,
+ desc_size = offsetof(struct ksock_tx,
tx_frags.virt.iov[1 + payload_niov]);
else
- desc_size = offsetof(ksock_tx_t,
+ desc_size = offsetof(struct ksock_tx,
tx_frags.paged.kiov[payload_niov]);
if (lntmsg->msg_vmflush)
if (rc == 0)
return (0);
+ lntmsg->msg_health_status = tx->tx_hstatus;
ksocknal_free_tx(tx);
return (-EIO);
}
ksocknal_thread_fini (void)
{
write_lock_bh(&ksocknal_data.ksnd_global_lock);
- ksocknal_data.ksnd_nthreads--;
+ if (--ksocknal_data.ksnd_nthreads == 0)
+ wake_up_var(&ksocknal_data.ksnd_nthreads);
write_unlock_bh(&ksocknal_data.ksnd_global_lock);
}
int
-ksocknal_new_packet (ksock_conn_t *conn, int nob_to_skip)
+ksocknal_new_packet(struct ksock_conn *conn, int nob_to_skip)
{
static char ksocknal_slop_buffer[4096];
-
- int nob;
- unsigned int niov;
- int skipped;
+ int nob;
+ unsigned int niov;
+ int skipped;
LASSERT(conn->ksnc_proto != NULL);
/* Set up to skip as much as possible now. If there's more left
* (ran out of iov entries) we'll get called again */
- conn->ksnc_rx_state = SOCKNAL_RX_SLOP;
- conn->ksnc_rx_nob_left = nob_to_skip;
+ conn->ksnc_rx_state = SOCKNAL_RX_SLOP;
+ conn->ksnc_rx_nob_left = nob_to_skip;
conn->ksnc_rx_iov = (struct kvec *)&conn->ksnc_rx_iov_space;
- skipped = 0;
- niov = 0;
+ skipped = 0;
+ niov = 0;
- do {
- nob = MIN (nob_to_skip, sizeof (ksocknal_slop_buffer));
+ do {
+ nob = min_t(int, nob_to_skip, sizeof(ksocknal_slop_buffer));
- conn->ksnc_rx_iov[niov].iov_base = ksocknal_slop_buffer;
- conn->ksnc_rx_iov[niov].iov_len = nob;
- niov++;
- skipped += nob;
- nob_to_skip -=nob;
+ conn->ksnc_rx_iov[niov].iov_base = ksocknal_slop_buffer;
+ conn->ksnc_rx_iov[niov].iov_len = nob;
+ niov++;
+ skipped += nob;
+ nob_to_skip -= nob;
- } while (nob_to_skip != 0 && /* mustn't overflow conn's rx iov */
+ } while (nob_to_skip != 0 && /* mustn't overflow conn's rx iov */
niov < sizeof(conn->ksnc_rx_iov_space) / sizeof(struct kvec));
conn->ksnc_rx_niov = niov;
}
static int
-ksocknal_process_receive (ksock_conn_t *conn)
+ksocknal_process_receive(struct ksock_conn *conn,
+ struct page **rx_scratch_pgs,
+ struct kvec *scratch_iov)
{
struct lnet_hdr *lhdr;
struct lnet_process_id *id;
/* NB: sched lock NOT held */
/* SOCKNAL_RX_LNET_HEADER is here for backward compatibility */
- LASSERT (conn->ksnc_rx_state == SOCKNAL_RX_KSM_HEADER ||
- conn->ksnc_rx_state == SOCKNAL_RX_LNET_PAYLOAD ||
- conn->ksnc_rx_state == SOCKNAL_RX_LNET_HEADER ||
- conn->ksnc_rx_state == SOCKNAL_RX_SLOP);
+ LASSERT(conn->ksnc_rx_state == SOCKNAL_RX_KSM_HEADER ||
+ conn->ksnc_rx_state == SOCKNAL_RX_LNET_PAYLOAD ||
+ conn->ksnc_rx_state == SOCKNAL_RX_LNET_HEADER ||
+ conn->ksnc_rx_state == SOCKNAL_RX_SLOP);
again:
- if (conn->ksnc_rx_nob_wanted != 0) {
- rc = ksocknal_receive(conn);
+ if (conn->ksnc_rx_nob_wanted != 0) {
+ rc = ksocknal_receive(conn, rx_scratch_pgs,
+ scratch_iov);
if (rc <= 0) {
struct lnet_process_id ksnp_id;
le64_to_cpu(lhdr->src_nid) != id->nid);
}
- lnet_finalize(conn->ksnc_peer->ksnp_ni, conn->ksnc_cookie, rc);
+ if (rc && conn->ksnc_lnet_msg)
+ conn->ksnc_lnet_msg->msg_health_status =
+ LNET_MSG_STATUS_REMOTE_ERROR;
+ lnet_finalize(conn->ksnc_lnet_msg, rc);
if (rc != 0) {
ksocknal_new_packet(conn, 0);
int
ksocknal_recv(struct lnet_ni *ni, void *private, struct lnet_msg *msg,
int delayed, unsigned int niov, struct kvec *iov,
- lnet_kiov_t *kiov, unsigned int offset, unsigned int mlen,
+ struct bio_vec *kiov, unsigned int offset, unsigned int mlen,
unsigned int rlen)
{
- ksock_conn_t *conn = (ksock_conn_t *)private;
- ksock_sched_t *sched = conn->ksnc_scheduler;
+ struct ksock_conn *conn = private;
+ struct ksock_sched *sched = conn->ksnc_scheduler;
LASSERT (mlen <= rlen);
LASSERT (niov <= LNET_MAX_IOV);
- conn->ksnc_cookie = msg;
- conn->ksnc_rx_nob_wanted = mlen;
- conn->ksnc_rx_nob_left = rlen;
+ conn->ksnc_lnet_msg = msg;
+ conn->ksnc_rx_nob_wanted = mlen;
+ conn->ksnc_rx_nob_left = rlen;
if (mlen == 0 || iov != NULL) {
conn->ksnc_rx_nkiov = 0;
}
static inline int
-ksocknal_sched_cansleep(ksock_sched_t *sched)
+ksocknal_sched_cansleep(struct ksock_sched *sched)
{
int rc;
int ksocknal_scheduler(void *arg)
{
- struct ksock_sched_info *info;
- ksock_sched_t *sched;
- ksock_conn_t *conn;
- ksock_tx_t *tx;
- int rc;
- int nloops = 0;
- long id = (long)arg;
+ struct ksock_sched *sched;
+ struct ksock_conn *conn;
+ struct ksock_tx *tx;
+ int rc;
+ int nloops = 0;
+ long id = (long)arg;
+ struct page **rx_scratch_pgs;
+ struct kvec *scratch_iov;
+
+ sched = ksocknal_data.ksnd_schedulers[KSOCK_THREAD_CPT(id)];
- info = ksocknal_data.ksnd_sched_info[KSOCK_THREAD_CPT(id)];
- sched = &info->ksi_scheds[KSOCK_THREAD_SID(id)];
+ LIBCFS_CPT_ALLOC(rx_scratch_pgs, lnet_cpt_table(), sched->kss_cpt,
+ sizeof(*rx_scratch_pgs) * LNET_MAX_IOV);
+ if (!rx_scratch_pgs) {
+ CERROR("Unable to allocate scratch pages\n");
+ return -ENOMEM;
+ }
- cfs_block_allsigs();
+ LIBCFS_CPT_ALLOC(scratch_iov, lnet_cpt_table(), sched->kss_cpt,
+ sizeof(*scratch_iov) * LNET_MAX_IOV);
+ if (!scratch_iov) {
+ CERROR("Unable to allocate scratch iov\n");
+ return -ENOMEM;
+ }
- rc = cfs_cpt_bind(lnet_cpt_table(), info->ksi_cpt);
+ rc = cfs_cpt_bind(lnet_cpt_table(), sched->kss_cpt);
if (rc != 0) {
CWARN("Can't set CPU partition affinity to %d: %d\n",
- info->ksi_cpt, rc);
+ sched->kss_cpt, rc);
}
spin_lock_bh(&sched->kss_lock);
- while (!ksocknal_data.ksnd_shuttingdown) {
- int did_something = 0;
+ while (!ksocknal_data.ksnd_shuttingdown) {
+ int did_something = 0;
- /* Ensure I progress everything semi-fairly */
+ /* Ensure I progress everything semi-fairly */
if (!list_empty(&sched->kss_rx_conns)) {
conn = list_entry(sched->kss_rx_conns.next,
- ksock_conn_t, ksnc_rx_list);
+ struct ksock_conn, ksnc_rx_list);
list_del(&conn->ksnc_rx_list);
- LASSERT(conn->ksnc_rx_scheduled);
- LASSERT(conn->ksnc_rx_ready);
+ LASSERT(conn->ksnc_rx_scheduled);
+ LASSERT(conn->ksnc_rx_ready);
- /* clear rx_ready in case receive isn't complete.
- * Do it BEFORE we call process_recv, since
- * data_ready can set it any time after we release
- * kss_lock. */
- conn->ksnc_rx_ready = 0;
+ /* clear rx_ready in case receive isn't complete.
+ * Do it BEFORE we call process_recv, since
+ * data_ready can set it any time after we release
+ * kss_lock. */
+ conn->ksnc_rx_ready = 0;
spin_unlock_bh(&sched->kss_lock);
- rc = ksocknal_process_receive(conn);
+ rc = ksocknal_process_receive(conn, rx_scratch_pgs,
+ scratch_iov);
spin_lock_bh(&sched->kss_lock);
- /* I'm the only one that can clear this flag */
- LASSERT(conn->ksnc_rx_scheduled);
-
- /* Did process_receive get everything it wanted? */
- if (rc == 0)
- conn->ksnc_rx_ready = 1;
+ /* I'm the only one that can clear this flag */
+ LASSERT(conn->ksnc_rx_scheduled);
- if (conn->ksnc_rx_state == SOCKNAL_RX_PARSE) {
- /* Conn blocked waiting for ksocknal_recv()
- * I change its state (under lock) to signal
- * it can be rescheduled */
- conn->ksnc_rx_state = SOCKNAL_RX_PARSE_WAIT;
- } else if (conn->ksnc_rx_ready) {
- /* reschedule for rx */
+ /* Did process_receive get everything it wanted? */
+ if (rc == 0)
+ conn->ksnc_rx_ready = 1;
+
+ if (conn->ksnc_rx_state == SOCKNAL_RX_PARSE) {
+ /* Conn blocked waiting for ksocknal_recv()
+ * I change its state (under lock) to signal
+ * it can be rescheduled */
+ conn->ksnc_rx_state = SOCKNAL_RX_PARSE_WAIT;
+ } else if (conn->ksnc_rx_ready) {
+ /* reschedule for rx */
list_add_tail(&conn->ksnc_rx_list,
- &sched->kss_rx_conns);
- } else {
- conn->ksnc_rx_scheduled = 0;
- /* drop my ref */
- ksocknal_conn_decref(conn);
- }
+ &sched->kss_rx_conns);
+ } else {
+ conn->ksnc_rx_scheduled = 0;
+ /* drop my ref */
+ ksocknal_conn_decref(conn);
+ }
- did_something = 1;
- }
+ did_something = 1;
+ }
if (!list_empty(&sched->kss_tx_conns)) {
- struct list_head zlist = LIST_HEAD_INIT(zlist);
+ LIST_HEAD(zlist);
- if (!list_empty(&sched->kss_zombie_noop_txs)) {
- list_add(&zlist,
- &sched->kss_zombie_noop_txs);
- list_del_init(&sched->kss_zombie_noop_txs);
- }
+ list_splice_init(&sched->kss_zombie_noop_txs, &zlist);
conn = list_entry(sched->kss_tx_conns.next,
- ksock_conn_t, ksnc_tx_list);
+ struct ksock_conn, ksnc_tx_list);
list_del(&conn->ksnc_tx_list);
- LASSERT(conn->ksnc_tx_scheduled);
- LASSERT(conn->ksnc_tx_ready);
+ LASSERT(conn->ksnc_tx_scheduled);
+ LASSERT(conn->ksnc_tx_ready);
LASSERT(!list_empty(&conn->ksnc_tx_queue));
tx = list_entry(conn->ksnc_tx_queue.next,
- ksock_tx_t, tx_list);
+ struct ksock_tx, tx_list);
- if (conn->ksnc_tx_carrier == tx)
- ksocknal_next_tx_carrier(conn);
+ if (conn->ksnc_tx_carrier == tx)
+ ksocknal_next_tx_carrier(conn);
- /* dequeue now so empty list => more to send */
+ /* dequeue now so empty list => more to send */
list_del(&tx->tx_list);
- /* Clear tx_ready in case send isn't complete. Do
- * it BEFORE we call process_transmit, since
- * write_space can set it any time after we release
- * kss_lock. */
- conn->ksnc_tx_ready = 0;
+ /* Clear tx_ready in case send isn't complete. Do
+ * it BEFORE we call process_transmit, since
+ * write_space can set it any time after we release
+ * kss_lock. */
+ conn->ksnc_tx_ready = 0;
spin_unlock_bh(&sched->kss_lock);
if (!list_empty(&zlist)) {
/* free zombie noop txs, it's fast because
- * noop txs are just put in freelist */
- ksocknal_txlist_done(NULL, &zlist, 0);
- }
+ * noop txs are just put in freelist */
+ ksocknal_txlist_done(NULL, &zlist, 0);
+ }
- rc = ksocknal_process_transmit(conn, tx);
+ rc = ksocknal_process_transmit(conn, tx, scratch_iov);
- if (rc == -ENOMEM || rc == -EAGAIN) {
- /* Incomplete send: replace tx on HEAD of tx_queue */
+ if (rc == -ENOMEM || rc == -EAGAIN) {
+ /* Incomplete send: replace tx on HEAD of tx_queue */
spin_lock_bh(&sched->kss_lock);
list_add(&tx->tx_list,
- &conn->ksnc_tx_queue);
+ &conn->ksnc_tx_queue);
} else {
/* Complete send; tx -ref */
ksocknal_tx_decref(tx);
spin_lock_bh(&sched->kss_lock);
- /* assume space for more */
- conn->ksnc_tx_ready = 1;
- }
+ /* assume space for more */
+ conn->ksnc_tx_ready = 1;
+ }
- if (rc == -ENOMEM) {
- /* Do nothing; after a short timeout, this
- * conn will be reposted on kss_tx_conns. */
- } else if (conn->ksnc_tx_ready &&
+ if (rc == -ENOMEM) {
+ /* Do nothing; after a short timeout, this
+ * conn will be reposted on kss_tx_conns. */
+ } else if (conn->ksnc_tx_ready &&
!list_empty(&conn->ksnc_tx_queue)) {
- /* reschedule for tx */
+ /* reschedule for tx */
list_add_tail(&conn->ksnc_tx_list,
- &sched->kss_tx_conns);
- } else {
- conn->ksnc_tx_scheduled = 0;
- /* drop my ref */
- ksocknal_conn_decref(conn);
- }
+ &sched->kss_tx_conns);
+ } else {
+ conn->ksnc_tx_scheduled = 0;
+ /* drop my ref */
+ ksocknal_conn_decref(conn);
+ }
- did_something = 1;
- }
- if (!did_something || /* nothing to do */
- ++nloops == SOCKNAL_RESCHED) { /* hogging CPU? */
+ did_something = 1;
+ }
+ if (!did_something || /* nothing to do */
+ ++nloops == SOCKNAL_RESCHED) { /* hogging CPU? */
spin_unlock_bh(&sched->kss_lock);
- nloops = 0;
+ nloops = 0;
- if (!did_something) { /* wait for something to do */
+ if (!did_something) { /* wait for something to do */
rc = wait_event_interruptible_exclusive(
sched->kss_waitq,
!ksocknal_sched_cansleep(sched));
}
spin_unlock_bh(&sched->kss_lock);
+ CFS_FREE_PTR_ARRAY(rx_scratch_pgs, LNET_MAX_IOV);
+ CFS_FREE_PTR_ARRAY(scratch_iov, LNET_MAX_IOV);
ksocknal_thread_fini();
return 0;
}
* Add connection to kss_rx_conns of scheduler
* and wakeup the scheduler.
*/
-void ksocknal_read_callback (ksock_conn_t *conn)
+void ksocknal_read_callback(struct ksock_conn *conn)
{
- ksock_sched_t *sched;
+ struct ksock_sched *sched;
ENTRY;
sched = conn->ksnc_scheduler;
* Add connection to kss_tx_conns of scheduler
* and wakeup the scheduler.
*/
-void ksocknal_write_callback(ksock_conn_t *conn)
+void ksocknal_write_callback(struct ksock_conn *conn)
{
- ksock_sched_t *sched;
+ struct ksock_sched *sched;
ENTRY;
sched = conn->ksnc_scheduler;
EXIT;
}
-static ksock_proto_t *
-ksocknal_parse_proto_version (struct ksock_hello_msg *hello)
+static const struct ksock_proto *
+ksocknal_parse_proto_version(struct ksock_hello_msg *hello)
{
__u32 version = 0;
if (hello->kshm_magic == le32_to_cpu(LNET_PROTO_TCP_MAGIC)) {
struct lnet_magicversion *hmv;
- CLASSERT(sizeof(struct lnet_magicversion) ==
+ BUILD_BUG_ON(sizeof(struct lnet_magicversion) !=
offsetof(struct ksock_hello_msg, kshm_src_nid));
hmv = (struct lnet_magicversion *)hello;
}
int
-ksocknal_send_hello(struct lnet_ni *ni, ksock_conn_t *conn,
+ksocknal_send_hello(struct lnet_ni *ni, struct ksock_conn *conn,
lnet_nid_t peer_nid, struct ksock_hello_msg *hello)
{
- /* CAVEAT EMPTOR: this byte flips 'ipaddrs' */
- ksock_net_t *net = (ksock_net_t *)ni->ni_data;
+ /* CAVEAT EMPTOR: this byte flips 'ipaddrs' */
+ struct ksock_net *net = (struct ksock_net *)ni->ni_data;
- LASSERT (hello->kshm_nips <= LNET_MAX_INTERFACES);
+ LASSERT(hello->kshm_nips <= LNET_INTERFACES_NUM);
- /* rely on caller to hold a ref on socket so it wouldn't disappear */
- LASSERT (conn->ksnc_proto != NULL);
+ /* rely on caller to hold a ref on socket so it wouldn't disappear */
+ LASSERT(conn->ksnc_proto != NULL);
- hello->kshm_src_nid = ni->ni_nid;
- hello->kshm_dst_nid = peer_nid;
- hello->kshm_src_pid = the_lnet.ln_pid;
+ hello->kshm_src_nid = ni->ni_nid;
+ hello->kshm_dst_nid = peer_nid;
+ hello->kshm_src_pid = the_lnet.ln_pid;
- hello->kshm_src_incarnation = net->ksnn_incarnation;
- hello->kshm_ctype = conn->ksnc_type;
+ hello->kshm_src_incarnation = net->ksnn_incarnation;
+ hello->kshm_ctype = conn->ksnc_type;
- return conn->ksnc_proto->pro_send_hello(conn, hello);
+ return conn->ksnc_proto->pro_send_hello(conn, hello);
}
static int
}
int
-ksocknal_recv_hello(struct lnet_ni *ni, ksock_conn_t *conn,
+ksocknal_recv_hello(struct lnet_ni *ni, struct ksock_conn *conn,
struct ksock_hello_msg *hello,
struct lnet_process_id *peerid,
__u64 *incarnation)
int timeout;
int proto_match;
int rc;
- ksock_proto_t *proto;
- struct lnet_process_id recv_id;
+ const struct ksock_proto *proto;
+ struct lnet_process_id recv_id;
/* socket type set on active connections - not set on passive */
LASSERT(!active == !(conn->ksnc_type != SOCKLND_CONN_NONE));
- timeout = active ? *ksocknal_tunables.ksnd_timeout :
+ timeout = active ? lnet_get_lnd_timeout() :
lnet_acceptor_timeout();
rc = lnet_sock_read(sock, &hello->kshm_magic,
*incarnation = hello->kshm_src_incarnation;
- if (hello->kshm_src_nid == LNET_NID_ANY) {
- CERROR("Expecting a HELLO hdr with a NID, but got LNET_NID_ANY"
- "from %pI4h\n", &conn->ksnc_ipaddr);
- return -EPROTO;
- }
+ if (hello->kshm_src_nid == LNET_NID_ANY) {
+ CERROR("Expecting a HELLO hdr with a NID, but got LNET_NID_ANY from %pI4h\n",
+ &conn->ksnc_ipaddr);
+ return -EPROTO;
+ }
if (!active &&
conn->ksnc_port > LNET_ACCEPTOR_MAX_RESERVED_PORT) {
}
static int
-ksocknal_connect (ksock_route_t *route)
+ksocknal_connect(struct ksock_route *route)
{
- struct list_head zombies = LIST_HEAD_INIT(zombies);
- ksock_peer_ni_t *peer_ni = route->ksnr_peer;
+ LIST_HEAD(zombies);
+ struct ksock_peer_ni *peer_ni = route->ksnr_peer;
int type;
int wanted;
struct socket *sock;
- cfs_time_t deadline;
+ time64_t deadline;
int retry_later = 0;
int rc = 0;
- deadline = cfs_time_add(cfs_time_current(),
- cfs_time_seconds(*ksocknal_tunables.ksnd_timeout));
+ deadline = ktime_get_seconds() + lnet_get_lnd_timeout();
write_lock_bh(&ksocknal_data.ksnd_global_lock);
write_unlock_bh(&ksocknal_data.ksnd_global_lock);
- if (cfs_time_aftereq(cfs_time_current(), deadline)) {
+ if (ktime_get_seconds() >= deadline) {
rc = -ETIMEDOUT;
lnet_connect_console_error(rc, peer_ni->ksnp_id.nid,
route->ksnr_ipaddr,
goto failed;
}
- rc = lnet_connect(&sock, peer_ni->ksnp_id.nid,
- route->ksnr_myipaddr,
- route->ksnr_ipaddr, route->ksnr_port);
- if (rc != 0)
- goto failed;
+ sock = lnet_connect(peer_ni->ksnp_id.nid,
+ route->ksnr_myiface,
+ route->ksnr_ipaddr, route->ksnr_port,
+ peer_ni->ksnp_ni->ni_net_ns);
+ if (IS_ERR(sock)) {
+ rc = PTR_ERR(sock);
+ goto failed;
+ }
rc = ksocknal_create_conn(peer_ni->ksnp_ni, route, sock, type);
if (rc < 0) {
* attempt to connect if we lost conn race,
* but the race is resolved quickly usually,
* so min_reconnectms should be good heuristic */
- route->ksnr_retry_interval =
- cfs_time_seconds(*ksocknal_tunables.ksnd_min_reconnectms)/1000;
- route->ksnr_timeout = cfs_time_add(cfs_time_current(),
- route->ksnr_retry_interval);
+ route->ksnr_retry_interval = *ksocknal_tunables.ksnd_min_reconnectms / 1000;
+ route->ksnr_timeout = ktime_get_seconds() +
+ route->ksnr_retry_interval;
}
ksocknal_launch_connection_locked(route);
route->ksnr_scheduled = 0;
route->ksnr_connecting = 0;
- /* This is a retry rather than a new connection */
- route->ksnr_retry_interval *= 2;
- route->ksnr_retry_interval =
- MAX(route->ksnr_retry_interval,
- cfs_time_seconds(*ksocknal_tunables.ksnd_min_reconnectms)/1000);
- route->ksnr_retry_interval =
- MIN(route->ksnr_retry_interval,
- cfs_time_seconds(*ksocknal_tunables.ksnd_max_reconnectms)/1000);
+ /* This is a retry rather than a new connection */
+ route->ksnr_retry_interval *= 2;
+ route->ksnr_retry_interval =
+ max_t(time64_t, route->ksnr_retry_interval,
+ *ksocknal_tunables.ksnd_min_reconnectms / 1000);
+ route->ksnr_retry_interval =
+ min_t(time64_t, route->ksnr_retry_interval,
+ *ksocknal_tunables.ksnd_max_reconnectms / 1000);
- LASSERT (route->ksnr_retry_interval != 0);
- route->ksnr_timeout = cfs_time_add(cfs_time_current(),
- route->ksnr_retry_interval);
+ LASSERT(route->ksnr_retry_interval);
+ route->ksnr_timeout = ktime_get_seconds() + route->ksnr_retry_interval;
if (!list_empty(&peer_ni->ksnp_tx_queue) &&
peer_ni->ksnp_accepting == 0 &&
ksocknal_find_connecting_route_locked(peer_ni) == NULL) {
- ksock_conn_t *conn;
+ struct ksock_conn *conn;
/* ksnp_tx_queue is queued on a conn on successful
* connection for V1.x and V2.x */
if (!list_empty(&peer_ni->ksnp_conns)) {
conn = list_entry(peer_ni->ksnp_conns.next,
- ksock_conn_t, ksnc_list);
+ struct ksock_conn, ksnc_list);
LASSERT (conn->ksnc_proto == &ksocknal_protocol_v3x);
}
write_unlock_bh(&ksocknal_data.ksnd_global_lock);
- ksocknal_peer_failed(peer_ni);
- ksocknal_txlist_done(peer_ni->ksnp_ni, &zombies, 1);
- return 0;
+ ksocknal_peer_failed(peer_ni);
+ ksocknal_txlist_done(peer_ni->ksnp_ni, &zombies, rc);
+ return 0;
}
/*
/* Go through connd_routes queue looking for a route that we can process
* right now, @timeout_p can be updated if we need to come back later */
-static ksock_route_t *
+static struct ksock_route *
ksocknal_connd_get_route_locked(signed long *timeout_p)
{
- ksock_route_t *route;
- cfs_time_t now;
-
- now = cfs_time_current();
+ time64_t now = ktime_get_seconds();
+ struct ksock_route *route;
/* connd_routes can contain both pending and ordinary routes */
list_for_each_entry(route, &ksocknal_data.ksnd_connd_routes,
ksnr_connd_list) {
if (route->ksnr_retry_interval == 0 ||
- cfs_time_aftereq(now, route->ksnr_timeout))
+ now >= route->ksnr_timeout)
return route;
if (*timeout_p == MAX_SCHEDULE_TIMEOUT ||
- (int)*timeout_p > (int)(route->ksnr_timeout - now))
- *timeout_p = (int)(route->ksnr_timeout - now);
+ *timeout_p > cfs_time_seconds(route->ksnr_timeout - now))
+ *timeout_p = cfs_time_seconds(route->ksnr_timeout - now);
}
return NULL;
}
int
-ksocknal_connd (void *arg)
+ksocknal_connd(void *arg)
{
- spinlock_t *connd_lock = &ksocknal_data.ksnd_connd_lock;
- ksock_connreq_t *cr;
- wait_queue_t wait;
- int nloops = 0;
- int cons_retry = 0;
-
- cfs_block_allsigs();
+ spinlock_t *connd_lock = &ksocknal_data.ksnd_connd_lock;
+ struct ksock_connreq *cr;
+ wait_queue_entry_t wait;
+ int nloops = 0;
+ int cons_retry = 0;
init_waitqueue_entry(&wait, current);
ksocknal_data.ksnd_connd_running++;
while (!ksocknal_data.ksnd_shuttingdown) {
- ksock_route_t *route = NULL;
+ struct ksock_route *route = NULL;
time64_t sec = ktime_get_real_seconds();
long timeout = MAX_SCHEDULE_TIMEOUT;
int dropped_lock = 0;
if (!list_empty(&ksocknal_data.ksnd_connd_connreqs)) {
/* Connection accepted by the listener */
- cr = list_entry(ksocknal_data.ksnd_connd_connreqs. \
- next, ksock_connreq_t, ksncr_list);
+ cr = list_entry(ksocknal_data.ksnd_connd_connreqs.next,
+ struct ksock_connreq, ksncr_list);
list_del(&cr->ksncr_list);
spin_unlock_bh(connd_lock);
nloops = 0;
schedule_timeout(timeout);
- set_current_state(TASK_RUNNING);
remove_wait_queue(&ksocknal_data.ksnd_connd_waitq, &wait);
spin_lock_bh(connd_lock);
}
return 0;
}
-static ksock_conn_t *
-ksocknal_find_timed_out_conn (ksock_peer_ni_t *peer_ni)
+static struct ksock_conn *
+ksocknal_find_timed_out_conn(struct ksock_peer_ni *peer_ni)
{
/* We're called with a shared lock on ksnd_global_lock */
- ksock_conn_t *conn;
- struct list_head *ctmp;
+ struct ksock_conn *conn;
+ struct list_head *ctmp;
+ struct ksock_tx *tx;
list_for_each(ctmp, &peer_ni->ksnp_conns) {
- int error;
- conn = list_entry(ctmp, ksock_conn_t, ksnc_list);
+ int error;
+
+ conn = list_entry(ctmp, struct ksock_conn, ksnc_list);
/* Don't need the {get,put}connsock dance to deref ksnc_sock */
LASSERT (!conn->ksnc_closing);
}
if (conn->ksnc_rx_started &&
- cfs_time_aftereq(cfs_time_current(),
- conn->ksnc_rx_deadline)) {
+ ktime_get_seconds() >= conn->ksnc_rx_deadline) {
/* Timed out incomplete incoming message */
ksocknal_conn_addref(conn);
CNETERR("Timeout receiving from %s (%pI4h:%d), "
if ((!list_empty(&conn->ksnc_tx_queue) ||
conn->ksnc_sock->sk->sk_wmem_queued != 0) &&
- cfs_time_aftereq(cfs_time_current(),
- conn->ksnc_tx_deadline)) {
+ ktime_get_seconds() >= conn->ksnc_tx_deadline) {
/* Timed out messages queued for sending or
* buffered in the socket's send buffer */
ksocknal_conn_addref(conn);
+ list_for_each_entry(tx, &conn->ksnc_tx_queue,
+ tx_list)
+ tx->tx_hstatus =
+ LNET_MSG_STATUS_LOCAL_TIMEOUT;
CNETERR("Timeout sending data to %s (%pI4h:%d) "
"the network or that node may be down.\n",
libcfs_id2str(peer_ni->ksnp_id),
}
static inline void
-ksocknal_flush_stale_txs(ksock_peer_ni_t *peer_ni)
+ksocknal_flush_stale_txs(struct ksock_peer_ni *peer_ni)
{
- ksock_tx_t *tx;
- struct list_head stale_txs = LIST_HEAD_INIT(stale_txs);
+ struct ksock_tx *tx;
+ LIST_HEAD(stale_txs);
write_lock_bh(&ksocknal_data.ksnd_global_lock);
while (!list_empty(&peer_ni->ksnp_tx_queue)) {
tx = list_entry(peer_ni->ksnp_tx_queue.next,
- ksock_tx_t, tx_list);
+ struct ksock_tx, tx_list);
- if (!cfs_time_aftereq(cfs_time_current(),
- tx->tx_deadline))
- break;
+ if (ktime_get_seconds() < tx->tx_deadline)
+ break;
- list_del(&tx->tx_list);
- list_add_tail(&tx->tx_list, &stale_txs);
- }
+ tx->tx_hstatus = LNET_MSG_STATUS_LOCAL_TIMEOUT;
+
+ list_move_tail(&tx->tx_list, &stale_txs);
+ }
write_unlock_bh(&ksocknal_data.ksnd_global_lock);
- ksocknal_txlist_done(peer_ni->ksnp_ni, &stale_txs, 1);
+ ksocknal_txlist_done(peer_ni->ksnp_ni, &stale_txs, -ETIMEDOUT);
}
static int
-ksocknal_send_keepalive_locked(ksock_peer_ni_t *peer_ni)
+ksocknal_send_keepalive_locked(struct ksock_peer_ni *peer_ni)
__must_hold(&ksocknal_data.ksnd_global_lock)
{
- ksock_sched_t *sched;
- ksock_conn_t *conn;
- ksock_tx_t *tx;
+ struct ksock_sched *sched;
+ struct ksock_conn *conn;
+ struct ksock_tx *tx;
/* last_alive will be updated by create_conn */
if (list_empty(&peer_ni->ksnp_conns))
return 0;
if (*ksocknal_tunables.ksnd_keepalive <= 0 ||
- cfs_time_before(cfs_time_current(),
- cfs_time_add(peer_ni->ksnp_last_alive,
- cfs_time_seconds(*ksocknal_tunables.ksnd_keepalive))))
+ ktime_get_seconds() < peer_ni->ksnp_last_alive +
+ *ksocknal_tunables.ksnd_keepalive)
return 0;
- if (cfs_time_before(cfs_time_current(),
- peer_ni->ksnp_send_keepalive))
+ if (ktime_get_seconds() < peer_ni->ksnp_send_keepalive)
return 0;
/* retry 10 secs later, so we wouldn't put pressure
* on this peer_ni if we failed to send keepalive this time */
- peer_ni->ksnp_send_keepalive = cfs_time_shift(10);
+ peer_ni->ksnp_send_keepalive = ktime_get_seconds() + 10;
conn = ksocknal_find_conn_locked(peer_ni, NULL, 1);
if (conn != NULL) {
static void
-ksocknal_check_peer_timeouts (int idx)
+ksocknal_check_peer_timeouts(int idx)
{
- struct list_head *peers = &ksocknal_data.ksnd_peers[idx];
- ksock_peer_ni_t *peer_ni;
- ksock_conn_t *conn;
- ksock_tx_t *tx;
+ struct hlist_head *peers = &ksocknal_data.ksnd_peers[idx];
+ struct ksock_peer_ni *peer_ni;
+ struct ksock_conn *conn;
+ struct ksock_tx *tx;
again:
- /* NB. We expect to have a look at all the peers and not find any
- * connections to time out, so we just use a shared lock while we
- * take a look... */
+ /* NB. We expect to have a look at all the peers and not find any
+ * connections to time out, so we just use a shared lock while we
+ * take a look...
+ */
read_lock(&ksocknal_data.ksnd_global_lock);
- list_for_each_entry(peer_ni, peers, ksnp_list) {
- ksock_tx_t *tx_stale;
- cfs_time_t deadline = 0;
- int resid = 0;
- int n = 0;
+ hlist_for_each_entry(peer_ni, peers, ksnp_list) {
+ struct ksock_tx *tx_stale;
+ time64_t deadline = 0;
+ int resid = 0;
+ int n = 0;
- if (ksocknal_send_keepalive_locked(peer_ni) != 0) {
+ if (ksocknal_send_keepalive_locked(peer_ni) != 0) {
read_unlock(&ksocknal_data.ksnd_global_lock);
- goto again;
- }
+ goto again;
+ }
- conn = ksocknal_find_timed_out_conn (peer_ni);
+ conn = ksocknal_find_timed_out_conn(peer_ni);
- if (conn != NULL) {
+ if (conn != NULL) {
read_unlock(&ksocknal_data.ksnd_global_lock);
- ksocknal_close_conn_and_siblings (conn, -ETIMEDOUT);
+ ksocknal_close_conn_and_siblings(conn, -ETIMEDOUT);
- /* NB we won't find this one again, but we can't
- * just proceed with the next peer_ni, since we dropped
- * ksnd_global_lock and it might be dead already! */
- ksocknal_conn_decref(conn);
- goto again;
- }
+ /* NB we won't find this one again, but we can't
+ * just proceed with the next peer_ni, since we dropped
+ * ksnd_global_lock and it might be dead already!
+ */
+ ksocknal_conn_decref(conn);
+ goto again;
+ }
- /* we can't process stale txs right here because we're
- * holding only shared lock */
+ /* we can't process stale txs right here because we're
+ * holding only shared lock
+ */
if (!list_empty(&peer_ni->ksnp_tx_queue)) {
- ksock_tx_t *tx =
- list_entry(peer_ni->ksnp_tx_queue.next,
- ksock_tx_t, tx_list);
+ struct ksock_tx *tx;
- if (cfs_time_aftereq(cfs_time_current(),
- tx->tx_deadline)) {
-
- ksocknal_peer_addref(peer_ni);
+ tx = list_entry(peer_ni->ksnp_tx_queue.next,
+ struct ksock_tx, tx_list);
+ if (ktime_get_seconds() >= tx->tx_deadline) {
+ ksocknal_peer_addref(peer_ni);
read_unlock(&ksocknal_data.ksnd_global_lock);
- ksocknal_flush_stale_txs(peer_ni);
+ ksocknal_flush_stale_txs(peer_ni);
- ksocknal_peer_decref(peer_ni);
- goto again;
- }
- }
+ ksocknal_peer_decref(peer_ni);
+ goto again;
+ }
+ }
if (list_empty(&peer_ni->ksnp_zc_req_list))
- continue;
+ continue;
tx_stale = NULL;
spin_lock(&peer_ni->ksnp_lock);
list_for_each_entry(tx, &peer_ni->ksnp_zc_req_list, tx_zc_list) {
- if (!cfs_time_aftereq(cfs_time_current(),
- tx->tx_deadline))
+ if (ktime_get_seconds() < tx->tx_deadline)
break;
/* ignore the TX if connection is being closed */
if (tx->tx_conn->ksnc_closing)
read_unlock(&ksocknal_data.ksnd_global_lock);
CERROR("Total %d stale ZC_REQs for peer_ni %s detected; the "
- "oldest(%p) timed out %ld secs ago, "
+ "oldest(%p) timed out %lld secs ago, "
"resid: %d, wmem: %d\n",
n, libcfs_nid2str(peer_ni->ksnp_id.nid), tx_stale,
- cfs_duration_sec(cfs_time_current() - deadline),
+ ktime_get_seconds() - deadline,
resid, conn->ksnc_sock->sk->sk_wmem_queued);
ksocknal_close_conn_and_siblings (conn, -ETIMEDOUT);
int ksocknal_reaper(void *arg)
{
- wait_queue_t wait;
- ksock_conn_t *conn;
- ksock_sched_t *sched;
- struct list_head enomem_conns;
- int nenomem_conns;
- cfs_duration_t timeout;
- int i;
- int peer_index = 0;
- cfs_time_t deadline = cfs_time_current();
-
- cfs_block_allsigs ();
-
- INIT_LIST_HEAD(&enomem_conns);
+ wait_queue_entry_t wait;
+ struct ksock_conn *conn;
+ struct ksock_sched *sched;
+ LIST_HEAD(enomem_conns);
+ int nenomem_conns;
+ time64_t timeout;
+ int i;
+ int peer_index = 0;
+ time64_t deadline = ktime_get_seconds();
+
init_waitqueue_entry(&wait, current);
spin_lock_bh(&ksocknal_data.ksnd_reaper_lock);
while (!ksocknal_data.ksnd_shuttingdown) {
-
if (!list_empty(&ksocknal_data.ksnd_deathrow_conns)) {
- conn = list_entry(ksocknal_data. \
- ksnd_deathrow_conns.next,
- ksock_conn_t, ksnc_list);
+ conn = list_entry(ksocknal_data.ksnd_deathrow_conns.next,
+ struct ksock_conn, ksnc_list);
list_del(&conn->ksnc_list);
spin_unlock_bh(&ksocknal_data.ksnd_reaper_lock);
}
if (!list_empty(&ksocknal_data.ksnd_zombie_conns)) {
- conn = list_entry(ksocknal_data.ksnd_zombie_conns.\
- next, ksock_conn_t, ksnc_list);
+ conn = list_entry(ksocknal_data.ksnd_zombie_conns.next,
+ struct ksock_conn, ksnc_list);
list_del(&conn->ksnc_list);
spin_unlock_bh(&ksocknal_data.ksnd_reaper_lock);
ksocknal_destroy_conn(conn);
spin_lock_bh(&ksocknal_data.ksnd_reaper_lock);
- continue;
- }
+ continue;
+ }
- if (!list_empty(&ksocknal_data.ksnd_enomem_conns)) {
- list_add(&enomem_conns,
- &ksocknal_data.ksnd_enomem_conns);
- list_del_init(&ksocknal_data.ksnd_enomem_conns);
- }
+ list_splice_init(&ksocknal_data.ksnd_enomem_conns,
+ &enomem_conns);
spin_unlock_bh(&ksocknal_data.ksnd_reaper_lock);
nenomem_conns = 0;
while (!list_empty(&enomem_conns)) {
conn = list_entry(enomem_conns.next,
- ksock_conn_t, ksnc_tx_list);
+ struct ksock_conn, ksnc_tx_list);
list_del(&conn->ksnc_tx_list);
sched = conn->ksnc_scheduler;
nenomem_conns++;
}
- /* careful with the jiffy wrap... */
- while ((timeout = cfs_time_sub(deadline,
- cfs_time_current())) <= 0) {
- const int n = 4;
- const int p = 1;
- int chunk = ksocknal_data.ksnd_peer_hash_size;
-
- /* Time to check for timeouts on a few more peers: I do
- * checks every 'p' seconds on a proportion of the peer_ni
- * table and I need to check every connection 'n' times
- * within a timeout interval, to ensure I detect a
- * timeout on any connection within (n+1)/n times the
- * timeout interval. */
-
- if (*ksocknal_tunables.ksnd_timeout > n * p)
- chunk = (chunk * n * p) /
- *ksocknal_tunables.ksnd_timeout;
- if (chunk == 0)
- chunk = 1;
-
- for (i = 0; i < chunk; i++) {
- ksocknal_check_peer_timeouts (peer_index);
- peer_index = (peer_index + 1) %
- ksocknal_data.ksnd_peer_hash_size;
- }
+ /* careful with the jiffy wrap... */
+ while ((timeout = deadline - ktime_get_seconds()) <= 0) {
+ const int n = 4;
+ const int p = 1;
+ int chunk = HASH_SIZE(ksocknal_data.ksnd_peers);
+ unsigned int lnd_timeout;
+
+ /* Time to check for timeouts on a few more peers: I
+ * do checks every 'p' seconds on a proportion of the
+ * peer_ni table and I need to check every connection
+ * 'n' times within a timeout interval, to ensure I
+ * detect a timeout on any connection within (n+1)/n
+ * times the timeout interval.
+ */
+
+ lnd_timeout = lnet_get_lnd_timeout();
+ if (lnd_timeout > n * p)
+ chunk = (chunk * n * p) / lnd_timeout;
+ if (chunk == 0)
+ chunk = 1;
+
+ for (i = 0; i < chunk; i++) {
+ ksocknal_check_peer_timeouts(peer_index);
+ peer_index = (peer_index + 1) %
+ HASH_SIZE(ksocknal_data.ksnd_peers);
+ }
- deadline = cfs_time_add(deadline, cfs_time_seconds(p));
- }
+ deadline += p;
+ }
if (nenomem_conns != 0) {
/* Reduce my timeout if I rescheduled ENOMEM conns.
* if any go back on my enomem list. */
timeout = SOCKNAL_ENOMEM_RETRY;
}
- ksocknal_data.ksnd_reaper_waketime =
- cfs_time_add(cfs_time_current(), timeout);
+ ksocknal_data.ksnd_reaper_waketime = ktime_get_seconds() +
+ timeout;
- set_current_state(TASK_INTERRUPTIBLE);
+ set_current_state(TASK_INTERRUPTIBLE);
add_wait_queue(&ksocknal_data.ksnd_reaper_waitq, &wait);
if (!ksocknal_data.ksnd_shuttingdown &&
list_empty(&ksocknal_data.ksnd_deathrow_conns) &&
list_empty(&ksocknal_data.ksnd_zombie_conns))
- schedule_timeout(timeout);
+ schedule_timeout(cfs_time_seconds(timeout));
set_current_state(TASK_RUNNING);
remove_wait_queue(&ksocknal_data.ksnd_reaper_waitq, &wait);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff