* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2013, Intel Corporation.
+ * Copyright (c) 2011, 2014, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
*/
#define DEBUG_SUBSYSTEM S_RPC
-#ifndef __KERNEL__
-# include <liblustre.h>
-#endif
+#include <linux/kthread.h>
#include <obd_support.h>
#include <lustre_ha.h>
#include <lustre_net.h>
static void __import_set_state(struct obd_import *imp,
enum lustre_imp_state state)
{
+ switch (state) {
+ case LUSTRE_IMP_CLOSED:
+ case LUSTRE_IMP_NEW:
+ case LUSTRE_IMP_DISCON:
+ case LUSTRE_IMP_CONNECTING:
+ break;
+ case LUSTRE_IMP_REPLAY_WAIT:
+ imp->imp_replay_state = LUSTRE_IMP_REPLAY_LOCKS;
+ break;
+ default:
+ imp->imp_replay_state = LUSTRE_IMP_REPLAY;
+ }
imp->imp_state = state;
imp->imp_state_hist[imp->imp_state_hist_idx].ish_state = state;
imp->imp_state_hist[imp->imp_state_hist_idx].ish_time =
spin_unlock(&imp->imp_lock); \
} while(0)
+void ptlrpc_import_enter_resend(struct obd_import *imp)
+{
+ IMPORT_SET_STATE(imp, LUSTRE_IMP_RECOVER);
+}
+EXPORT_SYMBOL(ptlrpc_import_enter_resend);
+
static int ptlrpc_connect_interpret(const struct lu_env *env,
struct ptlrpc_request *request,
UUID_STR, strlen(UUID_STR)))
*uuid_len -= strlen(UUID_STR);
}
-EXPORT_SYMBOL(deuuidify);
/**
* Returns true if import was FULL, false if import was already not
static void ptlrpc_deactivate_and_unlock_import(struct obd_import *imp)
{
ENTRY;
- LASSERT(spin_is_locked(&imp->imp_lock));
+ assert_spin_locked(&imp->imp_lock);
CDEBUG(D_HA, "setting import %s INVALID\n", obd2cli_tgt(imp->imp_obd));
imp->imp_invalid = 1;
static unsigned int ptlrpc_inflight_timeout(struct obd_import *imp)
{
time_t now = cfs_time_current_sec();
- cfs_list_t *tmp, *n;
+ struct list_head *tmp, *n;
struct ptlrpc_request *req;
unsigned int timeout = 0;
spin_lock(&imp->imp_lock);
- cfs_list_for_each_safe(tmp, n, &imp->imp_sending_list) {
- req = cfs_list_entry(tmp, struct ptlrpc_request, rq_list);
+ list_for_each_safe(tmp, n, &imp->imp_sending_list) {
+ req = list_entry(tmp, struct ptlrpc_request, rq_list);
timeout = max(ptlrpc_inflight_deadline(req, now), timeout);
}
spin_unlock(&imp->imp_lock);
*/
void ptlrpc_invalidate_import(struct obd_import *imp)
{
- cfs_list_t *tmp, *n;
- struct ptlrpc_request *req;
- struct l_wait_info lwi;
- unsigned int timeout;
- int rc;
+ struct list_head *tmp, *n;
+ struct ptlrpc_request *req;
+ struct l_wait_info lwi;
+ unsigned int timeout;
+ int rc;
- cfs_atomic_inc(&imp->imp_inval_count);
+ atomic_inc(&imp->imp_inval_count);
- if (!imp->imp_invalid || imp->imp_obd->obd_no_recov)
- ptlrpc_deactivate_import(imp);
+ if (!imp->imp_invalid || imp->imp_obd->obd_no_recov)
+ ptlrpc_deactivate_import(imp);
- LASSERT(imp->imp_invalid);
+ CFS_FAIL_TIMEOUT(OBD_FAIL_MGS_CONNECT_NET, 3 * cfs_fail_val / 2);
+ LASSERT(imp->imp_invalid);
/* Wait forever until inflight == 0. We really can't do it another
* way because in some cases we need to wait for very long reply
CDEBUG(D_RPCTRACE,"Sleeping %d sec for inflight to error out\n",
timeout);
- /* Wait for all requests to error out and call completion
- * callbacks. Cap it at obd_timeout -- these should all
- * have been locally cancelled by ptlrpc_abort_inflight. */
- lwi = LWI_TIMEOUT_INTERVAL(
- cfs_timeout_cap(cfs_time_seconds(timeout)),
- (timeout > 1)?cfs_time_seconds(1):cfs_time_seconds(1)/2,
- NULL, NULL);
- rc = l_wait_event(imp->imp_recovery_waitq,
- (cfs_atomic_read(&imp->imp_inflight) == 0),
- &lwi);
- if (rc) {
- const char *cli_tgt = obd2cli_tgt(imp->imp_obd);
-
- CERROR("%s: rc = %d waiting for callback (%d != 0)\n",
- cli_tgt, rc,
- cfs_atomic_read(&imp->imp_inflight));
+ /* Wait for all requests to error out and call completion
+ * callbacks. Cap it at obd_timeout -- these should all
+ * have been locally cancelled by ptlrpc_abort_inflight. */
+ lwi = LWI_TIMEOUT_INTERVAL(
+ cfs_timeout_cap(cfs_time_seconds(timeout)),
+ (timeout > 1)?cfs_time_seconds(1):cfs_time_seconds(1)/2,
+ NULL, NULL);
+ rc = l_wait_event(imp->imp_recovery_waitq,
+ (atomic_read(&imp->imp_inflight) == 0),
+ &lwi);
+ if (rc) {
+ const char *cli_tgt = obd2cli_tgt(imp->imp_obd);
+
+ CERROR("%s: rc = %d waiting for callback (%d != 0)\n",
+ cli_tgt, rc, atomic_read(&imp->imp_inflight));
spin_lock(&imp->imp_lock);
- if (cfs_atomic_read(&imp->imp_inflight) == 0) {
- int count = cfs_atomic_read(&imp->imp_unregistering);
-
- /* We know that "unregistering" rpcs only can
- * survive in sending or delaying lists (they
- * maybe waiting for long reply unlink in
- * sluggish nets). Let's check this. If there
- * is no inflight and unregistering != 0, this
- * is bug. */
- LASSERTF(count == 0, "Some RPCs are still "
- "unregistering: %d\n", count);
-
- /* Let's save one loop as soon as inflight have
- * dropped to zero. No new inflights possible at
- * this point. */
- rc = 0;
- } else {
- cfs_list_for_each_safe(tmp, n,
- &imp->imp_sending_list) {
- req = cfs_list_entry(tmp,
- struct ptlrpc_request,
- rq_list);
- DEBUG_REQ(D_ERROR, req,
- "still on sending list");
- }
- cfs_list_for_each_safe(tmp, n,
- &imp->imp_delayed_list) {
- req = cfs_list_entry(tmp,
- struct ptlrpc_request,
- rq_list);
- DEBUG_REQ(D_ERROR, req,
- "still on delayed list");
- }
-
- CERROR("%s: RPCs in \"%s\" phase found (%d). "
- "Network is sluggish? Waiting them "
- "to error out.\n", cli_tgt,
- ptlrpc_phase2str(RQ_PHASE_UNREGISTERING),
- cfs_atomic_read(&imp->
- imp_unregistering));
- }
+ if (atomic_read(&imp->imp_inflight) == 0) {
+ int count = atomic_read(&imp->imp_unregistering);
+
+ /* We know that "unregistering" rpcs only can
+ * survive in sending or delaying lists (they
+ * maybe waiting for long reply unlink in
+ * sluggish nets). Let's check this. If there
+ * is no inflight and unregistering != 0, this
+ * is bug. */
+ LASSERTF(count == 0, "Some RPCs are still "
+ "unregistering: %d\n", count);
+
+ /* Let's save one loop as soon as inflight have
+ * dropped to zero. No new inflights possible at
+ * this point. */
+ rc = 0;
+ } else {
+ list_for_each_safe(tmp, n,
+ &imp->imp_sending_list) {
+ req = list_entry(tmp,
+ struct ptlrpc_request,
+ rq_list);
+ DEBUG_REQ(D_ERROR, req,
+ "still on sending list");
+ }
+ list_for_each_safe(tmp, n,
+ &imp->imp_delayed_list) {
+ req = list_entry(tmp,
+ struct ptlrpc_request,
+ rq_list);
+ DEBUG_REQ(D_ERROR, req,
+ "still on delayed list");
+ }
+
+ CERROR("%s: RPCs in \"%s\" phase found (%d). "
+ "Network is sluggish? Waiting them "
+ "to error out.\n", cli_tgt,
+ ptlrpc_phase2str(RQ_PHASE_UNREGISTERING),
+ atomic_read(&imp->imp_unregistering));
+ }
spin_unlock(&imp->imp_lock);
- }
- } while (rc != 0);
+ }
+ } while (rc != 0);
/*
* Let's additionally check that no new rpcs added to import in
* "invalidate" state.
*/
- LASSERT(cfs_atomic_read(&imp->imp_inflight) == 0);
+ LASSERT(atomic_read(&imp->imp_inflight) == 0);
obd_import_event(imp->imp_obd, imp, IMP_EVENT_INVALIDATE);
sptlrpc_import_flush_all_ctx(imp);
- cfs_atomic_dec(&imp->imp_inval_count);
+ atomic_dec(&imp->imp_inval_count);
wake_up_all(&imp->imp_recovery_waitq);
}
EXPORT_SYMBOL(ptlrpc_invalidate_import);
}
EXPORT_SYMBOL(ptlrpc_activate_import);
+void ptlrpc_pinger_force(struct obd_import *imp)
+{
+ CDEBUG(D_HA, "%s: waking up pinger s:%s\n", obd2cli_tgt(imp->imp_obd),
+ ptlrpc_import_state_name(imp->imp_state));
+
+ spin_lock(&imp->imp_lock);
+ imp->imp_force_verify = 1;
+ spin_unlock(&imp->imp_lock);
+
+ if (imp->imp_state != LUSTRE_IMP_CONNECTING)
+ ptlrpc_pinger_wake_up();
+}
+EXPORT_SYMBOL(ptlrpc_pinger_force);
+
void ptlrpc_fail_import(struct obd_import *imp, __u32 conn_cnt)
{
ENTRY;
ptlrpc_deactivate_import(imp);
}
- CDEBUG(D_HA, "%s: waking up pinger\n",
- obd2cli_tgt(imp->imp_obd));
-
- spin_lock(&imp->imp_lock);
- imp->imp_force_verify = 1;
- spin_unlock(&imp->imp_lock);
-
- ptlrpc_pinger_wake_up();
+ ptlrpc_pinger_force(imp);
}
EXIT;
}
-EXPORT_SYMBOL(ptlrpc_fail_import);
int ptlrpc_reconnect_import(struct obd_import *imp)
{
- ptlrpc_set_import_discon(imp, 0);
- /* Force a new connect attempt */
- ptlrpc_invalidate_import(imp);
- /* Do a fresh connect next time by zeroing the handle */
- ptlrpc_disconnect_import(imp, 1);
- /* Wait for all invalidate calls to finish */
- if (cfs_atomic_read(&imp->imp_inval_count) > 0) {
- int rc;
- struct l_wait_info lwi = LWI_INTR(LWI_ON_SIGNAL_NOOP, NULL);
- rc = l_wait_event(imp->imp_recovery_waitq,
- (cfs_atomic_read(&imp->imp_inval_count) == 0),
- &lwi);
- if (rc)
- CERROR("Interrupted, inval=%d\n",
- cfs_atomic_read(&imp->imp_inval_count));
- }
+#ifdef ENABLE_PINGER
+ struct l_wait_info lwi;
+ int secs = cfs_time_seconds(obd_timeout);
+ int rc;
+
+ ptlrpc_pinger_force(imp);
+
+ CDEBUG(D_HA, "%s: recovery started, waiting %u seconds\n",
+ obd2cli_tgt(imp->imp_obd), secs);
+
+ lwi = LWI_TIMEOUT(secs, NULL, NULL);
+ rc = l_wait_event(imp->imp_recovery_waitq,
+ !ptlrpc_import_in_recovery(imp), &lwi);
+ CDEBUG(D_HA, "%s: recovery finished s:%s\n", obd2cli_tgt(imp->imp_obd),
+ ptlrpc_import_state_name(imp->imp_state));
+ return rc;
+#else
+ ptlrpc_set_import_discon(imp, 0);
+ /* Force a new connect attempt */
+ ptlrpc_invalidate_import(imp);
+ /* Do a fresh connect next time by zeroing the handle */
+ ptlrpc_disconnect_import(imp, 1);
+ /* Wait for all invalidate calls to finish */
+ if (atomic_read(&imp->imp_inval_count) > 0) {
+ struct l_wait_info lwi = LWI_INTR(LWI_ON_SIGNAL_NOOP, NULL);
+ int rc;
+
+ rc = l_wait_event(imp->imp_recovery_waitq,
+ (atomic_read(&imp->imp_inval_count) == 0),
+ &lwi);
+ if (rc)
+ CERROR("Interrupted, inval=%d\n",
+ atomic_read(&imp->imp_inval_count));
+ }
- /* Allow reconnect attempts */
- imp->imp_obd->obd_no_recov = 0;
- /* Remove 'invalid' flag */
- ptlrpc_activate_import(imp);
- /* Attempt a new connect */
- ptlrpc_recover_import(imp, NULL, 0);
- return 0;
+ /* Allow reconnect attempts */
+ imp->imp_obd->obd_no_recov = 0;
+ /* Remove 'invalid' flag */
+ ptlrpc_activate_import(imp);
+ /* Attempt a new connect */
+ ptlrpc_recover_import(imp, NULL, 0);
+ return 0;
+#endif
}
EXPORT_SYMBOL(ptlrpc_reconnect_import);
spin_lock(&imp->imp_lock);
- if (cfs_list_empty(&imp->imp_conn_list)) {
+ if (list_empty(&imp->imp_conn_list)) {
CERROR("%s: no connections available\n",
imp->imp_obd->obd_name);
spin_unlock(&imp->imp_lock);
RETURN(-EINVAL);
}
- cfs_list_for_each_entry(conn, &imp->imp_conn_list, oic_item) {
+ list_for_each_entry(conn, &imp->imp_conn_list, oic_item) {
CDEBUG(D_HA, "%s: connect to NID %s last attempt "LPU64"\n",
imp->imp_obd->obd_name,
libcfs_nid2str(conn->oic_conn->c_peer.nid),
static int ptlrpc_first_transno(struct obd_import *imp, __u64 *transno)
{
struct ptlrpc_request *req;
- cfs_list_t *tmp;
+ struct list_head *tmp;
/* The requests in committed_list always have smaller transnos than
* the requests in replay_list */
- if (!cfs_list_empty(&imp->imp_committed_list)) {
+ if (!list_empty(&imp->imp_committed_list)) {
tmp = imp->imp_committed_list.next;
- req = cfs_list_entry(tmp, struct ptlrpc_request, rq_replay_list);
+ req = list_entry(tmp, struct ptlrpc_request, rq_replay_list);
*transno = req->rq_transno;
if (req->rq_transno == 0) {
DEBUG_REQ(D_ERROR, req, "zero transno in committed_list");
}
return 1;
}
- if (!cfs_list_empty(&imp->imp_replay_list)) {
+ if (!list_empty(&imp->imp_replay_list)) {
tmp = imp->imp_replay_list.next;
- req = cfs_list_entry(tmp, struct ptlrpc_request, rq_replay_list);
+ req = list_entry(tmp, struct ptlrpc_request, rq_replay_list);
*transno = req->rq_transno;
if (req->rq_transno == 0) {
DEBUG_REQ(D_ERROR, req, "zero transno in replay_list");
if (rc)
GOTO(out, rc);
- rc = sptlrpc_import_sec_adapt(imp, NULL, 0);
+ rc = sptlrpc_import_sec_adapt(imp, NULL, NULL);
if (rc)
GOTO(out, rc);
request->rq_timeout = INITIAL_CONNECT_TIMEOUT;
lustre_msg_set_timeout(request->rq_reqmsg, request->rq_timeout);
-#ifndef __KERNEL__
- lustre_msg_add_op_flags(request->rq_reqmsg, MSG_CONNECT_LIBCLIENT);
-#endif
- lustre_msg_add_op_flags(request->rq_reqmsg, MSG_CONNECT_NEXT_VER);
-
request->rq_no_resend = request->rq_no_delay = 1;
request->rq_send_state = LUSTRE_IMP_CONNECTING;
/* Allow a slightly larger reply for future growth compatibility */
lustre_msg_add_op_flags(request->rq_reqmsg,
MSG_CONNECT_TRANSNO);
- DEBUG_REQ(D_RPCTRACE, request, "(re)connect request (timeout %d)",
- request->rq_timeout);
- ptlrpcd_add_req(request, PDL_POLICY_ROUND, -1);
- rc = 0;
+ DEBUG_REQ(D_RPCTRACE, request, "(re)connect request (timeout %d)",
+ request->rq_timeout);
+ ptlrpcd_add_req(request);
+ rc = 0;
out:
- if (rc != 0) {
- IMPORT_SET_STATE(imp, LUSTRE_IMP_DISCON);
- }
+ if (rc != 0)
+ IMPORT_SET_STATE(imp, LUSTRE_IMP_DISCON);
- RETURN(rc);
+ RETURN(rc);
}
EXPORT_SYMBOL(ptlrpc_connect_import);
static void ptlrpc_maybe_ping_import_soon(struct obd_import *imp)
{
-#ifdef __KERNEL__
int force_verify;
spin_lock(&imp->imp_lock);
if (force_verify)
ptlrpc_pinger_wake_up();
-#else
- /* liblustre has no pinger thread, so we wakeup pinger anyway */
- ptlrpc_pinger_wake_up();
-#endif
}
static int ptlrpc_busy_reconnect(int rc)
return (rc == -EBUSY) || (rc == -EAGAIN);
}
+static int ptlrpc_connect_set_flags(struct obd_import *imp,
+ struct obd_connect_data *ocd,
+ __u64 old_connect_flags,
+ struct obd_export *exp, int init_connect)
+{
+ static bool warned;
+ struct client_obd *cli = &imp->imp_obd->u.cli;
+
+ if ((imp->imp_connect_flags_orig & OBD_CONNECT_IBITS) &&
+ !(ocd->ocd_connect_flags & OBD_CONNECT_IBITS)) {
+ LCONSOLE_WARN("%s: MDS %s does not support ibits "
+ "lock, either very old or invalid: "
+ "requested "LPX64", replied "LPX64"\n",
+ imp->imp_obd->obd_name,
+ imp->imp_connection->c_remote_uuid.uuid,
+ imp->imp_connect_flags_orig,
+ ocd->ocd_connect_flags);
+ return -EPROTO;
+ }
+
+ spin_lock(&imp->imp_lock);
+ list_del(&imp->imp_conn_current->oic_item);
+ list_add(&imp->imp_conn_current->oic_item,
+ &imp->imp_conn_list);
+ imp->imp_last_success_conn =
+ imp->imp_conn_current->oic_last_attempt;
+
+ spin_unlock(&imp->imp_lock);
+
+
+ if (!warned && (ocd->ocd_connect_flags & OBD_CONNECT_VERSION) &&
+ (ocd->ocd_version > LUSTRE_VERSION_CODE +
+ LUSTRE_VERSION_OFFSET_WARN ||
+ ocd->ocd_version < LUSTRE_VERSION_CODE -
+ LUSTRE_VERSION_OFFSET_WARN)) {
+ /* Sigh, some compilers do not like #ifdef in the middle
+ of macro arguments */
+ const char *older = "older than client. "
+ "Consider upgrading server";
+ const char *newer = "newer than client. "
+ "Consider recompiling application";
+
+ LCONSOLE_WARN("Server %s version (%d.%d.%d.%d) "
+ "is much %s (%s)\n",
+ obd2cli_tgt(imp->imp_obd),
+ OBD_OCD_VERSION_MAJOR(ocd->ocd_version),
+ OBD_OCD_VERSION_MINOR(ocd->ocd_version),
+ OBD_OCD_VERSION_PATCH(ocd->ocd_version),
+ OBD_OCD_VERSION_FIX(ocd->ocd_version),
+ ocd->ocd_version > LUSTRE_VERSION_CODE ?
+ newer : older, LUSTRE_VERSION_STRING);
+ warned = true;
+ }
+
+#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
+ /* Check if server has LU-1252 fix applied to not always swab
+ * the IR MNE entries. Do this only once per connection. This
+ * fixup is version-limited, because we don't want to carry the
+ * OBD_CONNECT_MNE_SWAB flag around forever, just so long as we
+ * need interop with unpatched 2.2 servers. For newer servers,
+ * the client will do MNE swabbing only as needed. LU-1644 */
+ if (unlikely((ocd->ocd_connect_flags & OBD_CONNECT_VERSION) &&
+ !(ocd->ocd_connect_flags & OBD_CONNECT_MNE_SWAB) &&
+ OBD_OCD_VERSION_MAJOR(ocd->ocd_version) == 2 &&
+ OBD_OCD_VERSION_MINOR(ocd->ocd_version) == 2 &&
+ OBD_OCD_VERSION_PATCH(ocd->ocd_version) < 55 &&
+ strcmp(imp->imp_obd->obd_type->typ_name,
+ LUSTRE_MGC_NAME) == 0))
+ imp->imp_need_mne_swab = 1;
+ else /* clear if server was upgraded since last connect */
+ imp->imp_need_mne_swab = 0;
+#endif
+
+ if (ocd->ocd_connect_flags & OBD_CONNECT_CKSUM) {
+ /* We sent to the server ocd_cksum_types with bits set
+ * for algorithms we understand. The server masked off
+ * the checksum types it doesn't support */
+ if ((ocd->ocd_cksum_types &
+ cksum_types_supported_client()) == 0) {
+ LCONSOLE_WARN("The negotiation of the checksum "
+ "alogrithm to use with server %s "
+ "failed (%x/%x), disabling "
+ "checksums\n",
+ obd2cli_tgt(imp->imp_obd),
+ ocd->ocd_cksum_types,
+ cksum_types_supported_client());
+ cli->cl_checksum = 0;
+ cli->cl_supp_cksum_types = OBD_CKSUM_ADLER;
+ } else {
+ cli->cl_supp_cksum_types = ocd->ocd_cksum_types;
+ }
+ } else {
+ /* The server does not support OBD_CONNECT_CKSUM.
+ * Enforce ADLER for backward compatibility*/
+ cli->cl_supp_cksum_types = OBD_CKSUM_ADLER;
+ }
+ cli->cl_cksum_type = cksum_type_select(cli->cl_supp_cksum_types);
+
+ if (ocd->ocd_connect_flags & OBD_CONNECT_BRW_SIZE)
+ cli->cl_max_pages_per_rpc =
+ min(ocd->ocd_brw_size >> PAGE_CACHE_SHIFT,
+ cli->cl_max_pages_per_rpc);
+ else if (imp->imp_connect_op == MDS_CONNECT ||
+ imp->imp_connect_op == MGS_CONNECT)
+ cli->cl_max_pages_per_rpc = 1;
+
+ LASSERT((cli->cl_max_pages_per_rpc <= PTLRPC_MAX_BRW_PAGES) &&
+ (cli->cl_max_pages_per_rpc > 0));
+
+ client_adjust_max_dirty(cli);
+
+ /* Update client max modify RPCs in flight with value returned
+ * by the server */
+ if (ocd->ocd_connect_flags & OBD_CONNECT_MULTIMODRPCS)
+ cli->cl_max_mod_rpcs_in_flight = min(
+ cli->cl_max_mod_rpcs_in_flight,
+ ocd->ocd_maxmodrpcs);
+ else
+ cli->cl_max_mod_rpcs_in_flight = 1;
+
+ /* Reset ns_connect_flags only for initial connect. It might be
+ * changed in while using FS and if we reset it in reconnect
+ * this leads to losing user settings done before such as
+ * disable lru_resize, etc. */
+ if (old_connect_flags != exp_connect_flags(exp) || init_connect) {
+ CDEBUG(D_HA, "%s: Resetting ns_connect_flags to server "
+ "flags: "LPX64"\n", imp->imp_obd->obd_name,
+ ocd->ocd_connect_flags);
+ imp->imp_obd->obd_namespace->ns_connect_flags =
+ ocd->ocd_connect_flags;
+ imp->imp_obd->obd_namespace->ns_orig_connect_flags =
+ ocd->ocd_connect_flags;
+ }
+
+ if (ocd->ocd_connect_flags & OBD_CONNECT_AT)
+ /* We need a per-message support flag, because
+ * a. we don't know if the incoming connect reply
+ * supports AT or not (in reply_in_callback)
+ * until we unpack it.
+ * b. failovered server means export and flags are gone
+ * (in ptlrpc_send_reply).
+ * Can only be set when we know AT is supported at
+ * both ends */
+ imp->imp_msghdr_flags |= MSGHDR_AT_SUPPORT;
+ else
+ imp->imp_msghdr_flags &= ~MSGHDR_AT_SUPPORT;
+
+ imp->imp_msghdr_flags |= MSGHDR_CKSUM_INCOMPAT18;
+
+ return 0;
+}
+
/**
* interpret_reply callback for connect RPCs.
* Looks into returned status of connect operation and decides
{
struct ptlrpc_connect_async_args *aa = data;
struct obd_import *imp = request->rq_import;
- struct client_obd *cli = &imp->imp_obd->u.cli;
struct lustre_handle old_hdl;
__u64 old_connect_flags;
int msg_flags;
GOTO(out, rc = -EPROTO);
}
+ if (!(imp->imp_connect_flags_orig & OBD_CONNECT_LIGHTWEIGHT) &&
+ (imp->imp_connect_flags_orig & OBD_CONNECT_MDS_MDS) &&
+ (imp->imp_connect_flags_orig & OBD_CONNECT_FID) &&
+ (ocd->ocd_connect_flags & OBD_CONNECT_VERSION)) {
+ __u32 major = OBD_OCD_VERSION_MAJOR(ocd->ocd_version);
+ __u32 minor = OBD_OCD_VERSION_MINOR(ocd->ocd_version);
+ __u32 patch = OBD_OCD_VERSION_PATCH(ocd->ocd_version);
+
+ /* We do not support the MDT-MDT interoperations with
+ * different version MDT because of protocol changes. */
+ if (unlikely(major != LUSTRE_MAJOR ||
+ minor != LUSTRE_MINOR ||
+ abs(patch - LUSTRE_PATCH) > 3)) {
+ LCONSOLE_WARN("%s: import %p (%u.%u.%u.%u) tried the "
+ "connection to different version MDT "
+ "(%d.%d.%d.%d) %s\n",
+ imp->imp_obd->obd_name, imp, LUSTRE_MAJOR,
+ LUSTRE_MINOR, LUSTRE_PATCH, LUSTRE_FIX,
+ major, minor, patch,
+ OBD_OCD_VERSION_FIX(ocd->ocd_version),
+ imp->imp_connection->c_remote_uuid.uuid);
+
+ GOTO(out, rc = -EPROTO);
+ }
+ }
+
if (!exp) {
/* This could happen if export is cleaned during the
connect attempt */
old_connect_flags = exp_connect_flags(exp);
exp->exp_connect_data = *ocd;
imp->imp_obd->obd_self_export->exp_connect_data = *ocd;
+
+ /* The net statistics after (re-)connect is not valid anymore,
+ * because may reflect other routing, etc. */
+ at_reinit(&imp->imp_at.iat_net_latency, 0, 0);
+ ptlrpc_at_adj_net_latency(request,
+ lustre_msg_get_service_time(request->rq_repmsg));
+
+ /* Import flags should be updated before waking import at FULL state */
+ rc = ptlrpc_connect_set_flags(imp, ocd, old_connect_flags, exp,
+ aa->pcaa_initial_connect);
class_export_put(exp);
+ if (rc != 0)
+ GOTO(out, rc);
obd_import_event(imp->imp_obd, imp, IMP_EVENT_OCD);
obd2cli_tgt(imp->imp_obd));
IMPORT_SET_STATE(imp, LUSTRE_IMP_REPLAY_LOCKS);
} else {
- IMPORT_SET_STATE(imp, LUSTRE_IMP_FULL);
- ptlrpc_activate_import(imp);
+ IMPORT_SET_STATE(imp, LUSTRE_IMP_FULL);
+ ptlrpc_activate_import(imp);
}
GOTO(finish, rc = 0);
imp->imp_resend_replay = 1;
spin_unlock(&imp->imp_lock);
- IMPORT_SET_STATE(imp, LUSTRE_IMP_REPLAY);
+ IMPORT_SET_STATE(imp, imp->imp_replay_state);
} else {
IMPORT_SET_STATE(imp, LUSTRE_IMP_RECOVER);
}
finish:
rc = ptlrpc_import_recovery_state_machine(imp);
- if (rc != 0) {
- if (rc == -ENOTCONN) {
- CDEBUG(D_HA, "evicted/aborted by %s@%s during recovery;"
- "invalidating and reconnecting\n",
- obd2cli_tgt(imp->imp_obd),
- imp->imp_connection->c_remote_uuid.uuid);
- ptlrpc_connect_import(imp);
- imp->imp_connect_tried = 1;
- RETURN(0);
- }
- } else {
- static bool warned;
-
- spin_lock(&imp->imp_lock);
- cfs_list_del(&imp->imp_conn_current->oic_item);
- cfs_list_add(&imp->imp_conn_current->oic_item,
- &imp->imp_conn_list);
- imp->imp_last_success_conn =
- imp->imp_conn_current->oic_last_attempt;
-
- spin_unlock(&imp->imp_lock);
-
- if (!ocd->ocd_ibits_known &&
- ocd->ocd_connect_flags & OBD_CONNECT_IBITS)
- CERROR("Inodebits aware server returned zero compatible"
- " bits?\n");
-
- if (!warned && (ocd->ocd_connect_flags & OBD_CONNECT_VERSION) &&
- (ocd->ocd_version > LUSTRE_VERSION_CODE +
- LUSTRE_VERSION_OFFSET_WARN ||
- ocd->ocd_version < LUSTRE_VERSION_CODE -
- LUSTRE_VERSION_OFFSET_WARN)) {
- /* Sigh, some compilers do not like #ifdef in the middle
- of macro arguments */
- const char *older = "older than client. "
- "Consider upgrading server";
-#ifdef __KERNEL__
- const char *newer = "newer than client. "
- "Consider recompiling application";
-#else
- const char *newer = "newer than client. "
- "Consider upgrading client";
-#endif
-
- LCONSOLE_WARN("Server %s version (%d.%d.%d.%d) "
- "is much %s (%s)\n",
- obd2cli_tgt(imp->imp_obd),
- OBD_OCD_VERSION_MAJOR(ocd->ocd_version),
- OBD_OCD_VERSION_MINOR(ocd->ocd_version),
- OBD_OCD_VERSION_PATCH(ocd->ocd_version),
- OBD_OCD_VERSION_FIX(ocd->ocd_version),
- ocd->ocd_version > LUSTRE_VERSION_CODE ?
- newer : older, LUSTRE_VERSION_STRING);
- warned = true;
- }
-
-#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 2, 50, 0)
- /* Check if server has LU-1252 fix applied to not always swab
- * the IR MNE entries. Do this only once per connection. This
- * fixup is version-limited, because we don't want to carry the
- * OBD_CONNECT_MNE_SWAB flag around forever, just so long as we
- * need interop with unpatched 2.2 servers. For newer servers,
- * the client will do MNE swabbing only as needed. LU-1644 */
- if (unlikely((ocd->ocd_connect_flags & OBD_CONNECT_VERSION) &&
- !(ocd->ocd_connect_flags & OBD_CONNECT_MNE_SWAB) &&
- OBD_OCD_VERSION_MAJOR(ocd->ocd_version) == 2 &&
- OBD_OCD_VERSION_MINOR(ocd->ocd_version) == 2 &&
- OBD_OCD_VERSION_PATCH(ocd->ocd_version) < 55 &&
- strcmp(imp->imp_obd->obd_type->typ_name,
- LUSTRE_MGC_NAME) == 0))
- imp->imp_need_mne_swab = 1;
- else /* clear if server was upgraded since last connect */
- imp->imp_need_mne_swab = 0;
-#else
-#warning "LU-1644: Remove old OBD_CONNECT_MNE_SWAB fixup and imp_need_mne_swab"
-#endif
-
- if (ocd->ocd_connect_flags & OBD_CONNECT_CKSUM) {
- /* We sent to the server ocd_cksum_types with bits set
- * for algorithms we understand. The server masked off
- * the checksum types it doesn't support */
- if ((ocd->ocd_cksum_types &
- cksum_types_supported_client()) == 0) {
- LCONSOLE_WARN("The negotiation of the checksum "
- "alogrithm to use with server %s "
- "failed (%x/%x), disabling "
- "checksums\n",
- obd2cli_tgt(imp->imp_obd),
- ocd->ocd_cksum_types,
- cksum_types_supported_client());
- cli->cl_checksum = 0;
- cli->cl_supp_cksum_types = OBD_CKSUM_ADLER;
- } else {
- cli->cl_supp_cksum_types = ocd->ocd_cksum_types;
- }
- } else {
- /* The server does not support OBD_CONNECT_CKSUM.
- * Enforce ADLER for backward compatibility*/
- cli->cl_supp_cksum_types = OBD_CKSUM_ADLER;
- }
- cli->cl_cksum_type =cksum_type_select(cli->cl_supp_cksum_types);
-
- if (ocd->ocd_connect_flags & OBD_CONNECT_BRW_SIZE)
- cli->cl_max_pages_per_rpc =
- min(ocd->ocd_brw_size >> PAGE_CACHE_SHIFT,
- cli->cl_max_pages_per_rpc);
- else if (imp->imp_connect_op == MDS_CONNECT ||
- imp->imp_connect_op == MGS_CONNECT)
- cli->cl_max_pages_per_rpc = 1;
-
- /* Reset ns_connect_flags only for initial connect. It might be
- * changed in while using FS and if we reset it in reconnect
- * this leads to losing user settings done before such as
- * disable lru_resize, etc. */
- if (old_connect_flags != exp_connect_flags(exp) ||
- aa->pcaa_initial_connect) {
- CDEBUG(D_HA, "%s: Resetting ns_connect_flags to server "
- "flags: "LPX64"\n", imp->imp_obd->obd_name,
- ocd->ocd_connect_flags);
- imp->imp_obd->obd_namespace->ns_connect_flags =
- ocd->ocd_connect_flags;
- imp->imp_obd->obd_namespace->ns_orig_connect_flags =
- ocd->ocd_connect_flags;
- }
-
- if ((ocd->ocd_connect_flags & OBD_CONNECT_AT) &&
- (imp->imp_msg_magic == LUSTRE_MSG_MAGIC_V2))
- /* We need a per-message support flag, because
- a. we don't know if the incoming connect reply
- supports AT or not (in reply_in_callback)
- until we unpack it.
- b. failovered server means export and flags are gone
- (in ptlrpc_send_reply).
- Can only be set when we know AT is supported at
- both ends */
- imp->imp_msghdr_flags |= MSGHDR_AT_SUPPORT;
- else
- imp->imp_msghdr_flags &= ~MSGHDR_AT_SUPPORT;
-
- if ((ocd->ocd_connect_flags & OBD_CONNECT_FULL20) &&
- (imp->imp_msg_magic == LUSTRE_MSG_MAGIC_V2))
- imp->imp_msghdr_flags |= MSGHDR_CKSUM_INCOMPAT18;
- else
- imp->imp_msghdr_flags &= ~MSGHDR_CKSUM_INCOMPAT18;
-
- LASSERT((cli->cl_max_pages_per_rpc <= PTLRPC_MAX_BRW_PAGES) &&
- (cli->cl_max_pages_per_rpc > 0));
- }
+ if (rc == -ENOTCONN) {
+ CDEBUG(D_HA, "evicted/aborted by %s@%s during recovery;"
+ "invalidating and reconnecting\n",
+ obd2cli_tgt(imp->imp_obd),
+ imp->imp_connection->c_remote_uuid.uuid);
+ ptlrpc_connect_import(imp);
+ imp->imp_connect_tried = 1;
+ RETURN(0);
+ }
out:
imp->imp_connect_tried = 1;
struct ptlrpc_request *req,
void * data, int rc)
{
- ENTRY;
- cfs_atomic_dec(&req->rq_import->imp_replay_inflight);
- if (req->rq_status == 0 &&
- !req->rq_import->imp_vbr_failed) {
- ptlrpc_import_recovery_state_machine(req->rq_import);
- } else {
- if (req->rq_import->imp_vbr_failed) {
- CDEBUG(D_WARNING,
- "%s: version recovery fails, reconnecting\n",
- req->rq_import->imp_obd->obd_name);
- } else {
- CDEBUG(D_HA, "%s: LAST_REPLAY message error: %d, "
- "reconnecting\n",
- req->rq_import->imp_obd->obd_name,
- req->rq_status);
- }
- ptlrpc_connect_import(req->rq_import);
- }
+ ENTRY;
+ atomic_dec(&req->rq_import->imp_replay_inflight);
+ if (req->rq_status == 0 &&
+ !req->rq_import->imp_vbr_failed) {
+ ptlrpc_import_recovery_state_machine(req->rq_import);
+ } else {
+ if (req->rq_import->imp_vbr_failed) {
+ CDEBUG(D_WARNING,
+ "%s: version recovery fails, reconnecting\n",
+ req->rq_import->imp_obd->obd_name);
+ } else {
+ CDEBUG(D_HA, "%s: LAST_REPLAY message error: %d, "
+ "reconnecting\n",
+ req->rq_import->imp_obd->obd_name,
+ req->rq_status);
+ }
+ ptlrpc_connect_import(req->rq_import);
+ }
- RETURN(0);
+ RETURN(0);
}
/**
*/
static int signal_completed_replay(struct obd_import *imp)
{
- struct ptlrpc_request *req;
- ENTRY;
+ struct ptlrpc_request *req;
+ ENTRY;
- if (unlikely(OBD_FAIL_CHECK(OBD_FAIL_PTLRPC_FINISH_REPLAY)))
- RETURN(0);
+ if (unlikely(OBD_FAIL_CHECK(OBD_FAIL_PTLRPC_FINISH_REPLAY)))
+ RETURN(0);
- LASSERT(cfs_atomic_read(&imp->imp_replay_inflight) == 0);
- cfs_atomic_inc(&imp->imp_replay_inflight);
+ LASSERT(atomic_read(&imp->imp_replay_inflight) == 0);
+ atomic_inc(&imp->imp_replay_inflight);
- req = ptlrpc_request_alloc_pack(imp, &RQF_OBD_PING, LUSTRE_OBD_VERSION,
- OBD_PING);
- if (req == NULL) {
- cfs_atomic_dec(&imp->imp_replay_inflight);
- RETURN(-ENOMEM);
- }
+ req = ptlrpc_request_alloc_pack(imp, &RQF_OBD_PING, LUSTRE_OBD_VERSION,
+ OBD_PING);
+ if (req == NULL) {
+ atomic_dec(&imp->imp_replay_inflight);
+ RETURN(-ENOMEM);
+ }
- ptlrpc_request_set_replen(req);
- req->rq_send_state = LUSTRE_IMP_REPLAY_WAIT;
- lustre_msg_add_flags(req->rq_reqmsg,
- MSG_LOCK_REPLAY_DONE | MSG_REQ_REPLAY_DONE);
- if (AT_OFF)
- req->rq_timeout *= 3;
- req->rq_interpret_reply = completed_replay_interpret;
+ ptlrpc_request_set_replen(req);
+ req->rq_send_state = LUSTRE_IMP_REPLAY_WAIT;
+ lustre_msg_add_flags(req->rq_reqmsg,
+ MSG_LOCK_REPLAY_DONE | MSG_REQ_REPLAY_DONE);
+ if (AT_OFF)
+ req->rq_timeout *= 3;
+ req->rq_interpret_reply = completed_replay_interpret;
- ptlrpcd_add_req(req, PDL_POLICY_ROUND, -1);
- RETURN(0);
+ ptlrpcd_add_req(req);
+ RETURN(0);
}
-#ifdef __KERNEL__
/**
* In kernel code all import invalidation happens in its own
* separate thread, so that whatever application happened to encounter
class_import_put(imp);
RETURN(0);
}
-#endif
/**
* This is the state machine for client-side recovery on import.
imp->imp_vbr_failed = 0;
spin_unlock(&imp->imp_lock);
-#ifdef __KERNEL__
{
struct task_struct *task;
/* bug 17802: XXX client_disconnect_export vs connect request
- * race. if client will evicted at this time, we start
+ * race. if client is evicted at this time then we start
* invalidate thread without reference to import and import can
* be freed at same time. */
class_import_get(imp);
}
RETURN(rc);
}
-#else
- ptlrpc_invalidate_import(imp);
-
- IMPORT_SET_STATE(imp, LUSTRE_IMP_RECOVER);
-#endif
- }
-
- if (imp->imp_state == LUSTRE_IMP_REPLAY) {
- CDEBUG(D_HA, "replay requested by %s\n",
- obd2cli_tgt(imp->imp_obd));
- rc = ptlrpc_replay_next(imp, &inflight);
- if (inflight == 0 &&
- cfs_atomic_read(&imp->imp_replay_inflight) == 0) {
- IMPORT_SET_STATE(imp, LUSTRE_IMP_REPLAY_LOCKS);
- rc = ldlm_replay_locks(imp);
- if (rc)
- GOTO(out, rc);
- }
- rc = 0;
}
- if (imp->imp_state == LUSTRE_IMP_REPLAY_LOCKS) {
- if (cfs_atomic_read(&imp->imp_replay_inflight) == 0) {
- IMPORT_SET_STATE(imp, LUSTRE_IMP_REPLAY_WAIT);
- rc = signal_completed_replay(imp);
- if (rc)
- GOTO(out, rc);
- }
+ if (imp->imp_state == LUSTRE_IMP_REPLAY) {
+ CDEBUG(D_HA, "replay requested by %s\n",
+ obd2cli_tgt(imp->imp_obd));
+ rc = ptlrpc_replay_next(imp, &inflight);
+ if (inflight == 0 &&
+ atomic_read(&imp->imp_replay_inflight) == 0) {
+ IMPORT_SET_STATE(imp, LUSTRE_IMP_REPLAY_LOCKS);
+ rc = ldlm_replay_locks(imp);
+ if (rc)
+ GOTO(out, rc);
+ }
+ rc = 0;
+ }
- }
+ if (imp->imp_state == LUSTRE_IMP_REPLAY_LOCKS) {
+ if (atomic_read(&imp->imp_replay_inflight) == 0) {
+ IMPORT_SET_STATE(imp, LUSTRE_IMP_REPLAY_WAIT);
+ rc = signal_completed_replay(imp);
+ if (rc)
+ GOTO(out, rc);
+ }
+ }
- if (imp->imp_state == LUSTRE_IMP_REPLAY_WAIT) {
- if (cfs_atomic_read(&imp->imp_replay_inflight) == 0) {
- IMPORT_SET_STATE(imp, LUSTRE_IMP_RECOVER);
- }
- }
+ if (imp->imp_state == LUSTRE_IMP_REPLAY_WAIT) {
+ if (atomic_read(&imp->imp_replay_inflight) == 0) {
+ IMPORT_SET_STATE(imp, LUSTRE_IMP_RECOVER);
+ }
+ }
if (imp->imp_state == LUSTRE_IMP_RECOVER) {
- CDEBUG(D_HA, "reconnected to %s@%s\n",
- obd2cli_tgt(imp->imp_obd),
- imp->imp_connection->c_remote_uuid.uuid);
+ struct ptlrpc_connection *conn = imp->imp_connection;
rc = ptlrpc_resend(imp);
if (rc)
IMPORT_SET_STATE(imp, LUSTRE_IMP_FULL);
ptlrpc_activate_import(imp);
- deuuidify(obd2cli_tgt(imp->imp_obd), NULL,
- &target_start, &target_len);
- LCONSOLE_INFO("%s: Connection restored to %.*s (at %s)\n",
- imp->imp_obd->obd_name,
- target_len, target_start,
- libcfs_nid2str(imp->imp_connection->c_peer.nid));
+ LCONSOLE_INFO("%s: Connection restored to %s (at %s)\n",
+ imp->imp_obd->obd_name,
+ obd_uuid2str(&conn->c_remote_uuid),
+ libcfs_nid2str(imp->imp_connection->c_peer.nid));
}
if (imp->imp_state == LUSTRE_IMP_FULL) {
EXIT;
}
-EXPORT_SYMBOL(ptlrpc_cleanup_imp);
/* Adaptive Timeout utils */
extern unsigned int at_min, at_max, at_history;
-/* Bin into timeslices using AT_BINS bins.
- This gives us a max of the last binlimit*AT_BINS secs without the storage,
- but still smoothing out a return to normalcy from a slow response.
- (E.g. remember the maximum latency in each minute of the last 4 minutes.) */
+/* Update at_current with the specified value (bounded by at_min and at_max),
+ * as well as the AT history "bins".
+ * - Bin into timeslices using AT_BINS bins.
+ * - This gives us a max of the last at_history seconds without the storage,
+ * but still smoothing out a return to normalcy from a slow response.
+ * - (E.g. remember the maximum latency in each minute of the last 4 minutes.)
+ */
int at_measured(struct adaptive_timeout *at, unsigned int val)
{
unsigned int old = at->at_current;
git://git.whamcloud.com / fs / lustre-release.git / blobdiff