*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2010, 2014, Intel Corporation.
+ * Copyright (c) 2010, 2016, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
*
* @{
*/
-
+#include <linux/kobject.h>
+#include <linux/uio.h>
#include <libcfs/libcfs.h>
#include <lnet/nidstr.h>
#include <lnet/api.h>
#define PTLRPC_MD_OPTIONS 0
/**
- * Max # of bulk operations in one request.
+ * log2 max # of bulk operations in one request: 2=4MB/RPC, 5=32MB/RPC, ...
* In order for the client and server to properly negotiate the maximum
* possible transfer size, PTLRPC_BULK_OPS_COUNT must be a power-of-two
* value. The client is free to limit the actual RPC size for any bulk
- * transfer via cl_max_pages_per_rpc to some non-power-of-two value. */
-#define PTLRPC_BULK_OPS_BITS 2
+ * transfer via cl_max_pages_per_rpc to some non-power-of-two value.
+ * NOTE: This is limited to 16 (=64GB RPCs) by IOOBJ_MAX_BRW_BITS. */
+#define PTLRPC_BULK_OPS_BITS 4
+#if PTLRPC_BULK_OPS_BITS > 16
+#error "More than 65536 BRW RPCs not allowed by IOOBJ_MAX_BRW_BITS."
+#endif
#define PTLRPC_BULK_OPS_COUNT (1U << PTLRPC_BULK_OPS_BITS)
/**
* PTLRPC_BULK_OPS_MASK is for the convenience of the client only, and
* currently supported maximum between peers at connect via ocd_brw_size.
*/
#define PTLRPC_MAX_BRW_BITS (LNET_MTU_BITS + PTLRPC_BULK_OPS_BITS)
-#define PTLRPC_MAX_BRW_SIZE (1 << PTLRPC_MAX_BRW_BITS)
-#define PTLRPC_MAX_BRW_PAGES (PTLRPC_MAX_BRW_SIZE >> PAGE_CACHE_SHIFT)
+#define PTLRPC_MAX_BRW_SIZE (1U << PTLRPC_MAX_BRW_BITS)
+#define PTLRPC_MAX_BRW_PAGES (PTLRPC_MAX_BRW_SIZE >> PAGE_SHIFT)
-#define ONE_MB_BRW_SIZE (1 << LNET_MTU_BITS)
-#define MD_MAX_BRW_SIZE (1 << LNET_MTU_BITS)
-#define MD_MAX_BRW_PAGES (MD_MAX_BRW_SIZE >> PAGE_CACHE_SHIFT)
+#define ONE_MB_BRW_SIZE (1U << LNET_MTU_BITS)
+#define MD_MAX_BRW_SIZE (1U << LNET_MTU_BITS)
+#define MD_MAX_BRW_PAGES (MD_MAX_BRW_SIZE >> PAGE_SHIFT)
#define DT_MAX_BRW_SIZE PTLRPC_MAX_BRW_SIZE
-#define DT_MAX_BRW_PAGES (DT_MAX_BRW_SIZE >> PAGE_CACHE_SHIFT)
-#define OFD_MAX_BRW_SIZE (1 << LNET_MTU_BITS)
+#define DT_DEF_BRW_SIZE (4 * ONE_MB_BRW_SIZE)
+#define DT_MAX_BRW_PAGES (DT_MAX_BRW_SIZE >> PAGE_SHIFT)
+#define OFD_MAX_BRW_SIZE (1U << LNET_MTU_BITS)
/* When PAGE_SIZE is a constant, we can check our arithmetic here with cpp! */
#if ((PTLRPC_MAX_BRW_PAGES & (PTLRPC_MAX_BRW_PAGES - 1)) != 0)
# error "PTLRPC_MAX_BRW_PAGES isn't a power of two"
#endif
-#if (PTLRPC_MAX_BRW_SIZE != (PTLRPC_MAX_BRW_PAGES * PAGE_CACHE_SIZE))
-# error "PTLRPC_MAX_BRW_SIZE isn't PTLRPC_MAX_BRW_PAGES * PAGE_CACHE_SIZE"
+#if (PTLRPC_MAX_BRW_SIZE != (PTLRPC_MAX_BRW_PAGES * PAGE_SIZE))
+# error "PTLRPC_MAX_BRW_SIZE isn't PTLRPC_MAX_BRW_PAGES * PAGE_SIZE"
#endif
#if (PTLRPC_MAX_BRW_SIZE > LNET_MTU * PTLRPC_BULK_OPS_COUNT)
# error "PTLRPC_MAX_BRW_SIZE too big"
*/
/* depress threads factor for VM with small memory size */
#define OSS_THR_FACTOR min_t(int, 8, \
- NUM_CACHEPAGES >> (28 - PAGE_CACHE_SHIFT))
+ NUM_CACHEPAGES >> (28 - PAGE_SHIFT))
#define OSS_NTHRS_INIT (PTLRPC_NTHRS_INIT + 1)
#define OSS_NTHRS_BASE 64
-#define OSS_NTHRS_MAX 512
/* threads for handling "create" request */
#define OSS_CR_THR_FACTOR 1
/** Our own lnet nid for this connection */
lnet_nid_t c_self;
/** Remote side nid for this connection */
- lnet_process_id_t c_peer;
+ struct lnet_process_id c_peer;
/** UUID of the other side */
struct obd_uuid c_remote_uuid;
/** reference counter for this connection */
set_producer_func set_producer;
/** opaq argument passed to the producer callback */
void *set_producer_arg;
+ unsigned int set_allow_intr:1;
};
/**
* ptlrpc callback & work item stuff
*/
struct ptlrpc_cb_id {
- void (*cbid_fn)(lnet_event_t *ev); /* specific callback fn */
- void *cbid_arg; /* additional arg */
+ void (*cbid_fn)(struct lnet_event *ev); /* specific callback fn */
+ void *cbid_arg; /* additional arg */
};
/** Maximum number of locks to fit into reply state */
unsigned long rs_committed:1;/* the transaction was committed
and the rs was dispatched
by ptlrpc_commit_replies */
+ unsigned long rs_convert_lock:1; /* need to convert saved
+ * locks to COS mode */
+ atomic_t rs_refcount; /* number of users */
+ /** Number of locks awaiting client ACK */
+ int rs_nlocks;
+
/** Size of the state */
int rs_size;
/** opcode */
struct obd_export *rs_export;
struct ptlrpc_service_part *rs_svcpt;
/** Lnet metadata handle for the reply */
- lnet_handle_md_t rs_md_h;
- atomic_t rs_refcount;
+ struct lnet_handle_md rs_md_h;
/** Context for the sevice thread */
- struct ptlrpc_svc_ctx *rs_svc_ctx;
+ struct ptlrpc_svc_ctx *rs_svc_ctx;
/** Reply buffer (actually sent to the client), encoded if needed */
- struct lustre_msg *rs_repbuf; /* wrapper */
- /** Size of the reply buffer */
- int rs_repbuf_len; /* wrapper buf length */
- /** Size of the reply message */
- int rs_repdata_len; /* wrapper msg length */
- /**
- * Actual reply message. Its content is encrupted (if needed) to
- * produce reply buffer for actual sending. In simple case
- * of no network encryption we jus set \a rs_repbuf to \a rs_msg
- */
- struct lustre_msg *rs_msg; /* reply message */
-
- /** Number of locks awaiting client ACK */
- int rs_nlocks;
- /** Handles of locks awaiting client reply ACK */
- struct lustre_handle rs_locks[RS_MAX_LOCKS];
- /** Lock modes of locks in \a rs_locks */
- ldlm_mode_t rs_modes[RS_MAX_LOCKS];
+ struct lustre_msg *rs_repbuf; /* wrapper */
+ /** Size of the reply buffer */
+ int rs_repbuf_len; /* wrapper buf length */
+ /** Size of the reply message */
+ int rs_repdata_len; /* wrapper msg length */
+ /**
+ * Actual reply message. Its content is encrupted (if needed) to
+ * produce reply buffer for actual sending. In simple case
+ * of no network encryption we jus set \a rs_repbuf to \a rs_msg
+ */
+ struct lustre_msg *rs_msg; /* reply message */
+
+ /** Handles of locks awaiting client reply ACK */
+ struct lustre_handle rs_locks[RS_MAX_LOCKS];
+ /** Lock modes of locks in \a rs_locks */
+ enum ldlm_mode rs_modes[RS_MAX_LOCKS];
};
struct ptlrpc_thread;
/** RPC stages */
enum rq_phase {
- RQ_PHASE_NEW = 0xebc0de00,
- RQ_PHASE_RPC = 0xebc0de01,
- RQ_PHASE_BULK = 0xebc0de02,
- RQ_PHASE_INTERPRET = 0xebc0de03,
- RQ_PHASE_COMPLETE = 0xebc0de04,
- RQ_PHASE_UNREGISTERING = 0xebc0de05,
- RQ_PHASE_UNDEFINED = 0xebc0de06
+ RQ_PHASE_NEW = 0xebc0de00,
+ RQ_PHASE_RPC = 0xebc0de01,
+ RQ_PHASE_BULK = 0xebc0de02,
+ RQ_PHASE_INTERPRET = 0xebc0de03,
+ RQ_PHASE_COMPLETE = 0xebc0de04,
+ RQ_PHASE_UNREG_RPC = 0xebc0de05,
+ RQ_PHASE_UNREG_BULK = 0xebc0de06,
+ RQ_PHASE_UNDEFINED = 0xebc0de07
};
/** Type of request interpreter call-back */
/** Maximum message size that would fit into a rquest from this pool */
int prp_rq_size;
/** Function to allocate more requests for this pool */
- void (*prp_populate)(struct ptlrpc_request_pool *, int);
+ int (*prp_populate)(struct ptlrpc_request_pool *, int);
};
struct lu_context;
cfs_duration_t cr_delay_limit;
/** time request was first queued */
cfs_time_t cr_queued_time;
- /** request sent timeval */
- struct timeval cr_sent_tv;
+ /** request sent in nanoseconds */
+ ktime_t cr_sent_ns;
/** time for request really sent out */
- time_t cr_sent_out;
+ time64_t cr_sent_out;
/** when req reply unlink must finish. */
- time_t cr_reply_deadline;
+ time64_t cr_reply_deadline;
/** when req bulk unlink must finish. */
- time_t cr_bulk_deadline;
+ time64_t cr_bulk_deadline;
+ /** when req unlink must finish. */
+ time64_t cr_req_deadline;
/** Portal to which this request would be sent */
short cr_req_ptl;
/** Portal where to wait for reply and where reply would be sent */
/** Link back to the request set */
struct ptlrpc_request_set *cr_set;
/** outgoing request MD handle */
- lnet_handle_md_t cr_req_md_h;
+ struct lnet_handle_md cr_req_md_h;
/** request-out callback parameter */
struct ptlrpc_cb_id cr_req_cbid;
/** incoming reply MD handle */
- lnet_handle_md_t cr_reply_md_h;
+ struct lnet_handle_md cr_reply_md_h;
wait_queue_head_t cr_reply_waitq;
/** reply callback parameter */
struct ptlrpc_cb_id cr_reply_cbid;
union ptlrpc_async_args cr_async_args;
/** Opaq data for replay and commit callbacks. */
void *cr_cb_data;
+ /** Link to the imp->imp_unreplied_list */
+ struct list_head cr_unreplied_list;
/**
* Commit callback, called when request is committed and about to be
* freed.
#define rq_bulk rq_cli.cr_bulk
#define rq_delay_limit rq_cli.cr_delay_limit
#define rq_queued_time rq_cli.cr_queued_time
-#define rq_sent_tv rq_cli.cr_sent_tv
+#define rq_sent_ns rq_cli.cr_sent_ns
#define rq_real_sent rq_cli.cr_sent_out
#define rq_reply_deadline rq_cli.cr_reply_deadline
#define rq_bulk_deadline rq_cli.cr_bulk_deadline
+#define rq_req_deadline rq_cli.cr_req_deadline
#define rq_nr_resend rq_cli.cr_resend_nr
#define rq_request_portal rq_cli.cr_req_ptl
#define rq_reply_portal rq_cli.cr_rep_ptl
#define rq_resend_cb rq_cli.cr_resend_cb
#define rq_async_args rq_cli.cr_async_args
#define rq_cb_data rq_cli.cr_cb_data
+#define rq_unreplied_list rq_cli.cr_unreplied_list
#define rq_commit_cb rq_cli.cr_commit_cb
#define rq_replay_cb rq_cli.cr_replay_cb
/** history sequence # */
__u64 sr_hist_seq;
/** the index of service's srv_at_array into which request is linked */
- time_t sr_at_index;
+ __u32 sr_at_index;
/** authed uid */
uid_t sr_auth_uid;
/** authed uid mapped to */
struct ptlrpc_nrs_request sr_nrq;
/** @} nrs */
/** request arrival time */
- struct timeval sr_arrival_time;
+ struct timespec64 sr_arrival_time;
/** server's half ctx */
struct ptlrpc_svc_ctx *sr_svc_ctx;
/** (server side), pointed directly into req buffer */
struct ptlrpc_user_desc *sr_user_desc;
- /** separated reply state */
+ /** separated reply state, may be vmalloc'd */
struct ptlrpc_reply_state *sr_reply_state;
/** server-side hp handlers */
struct ptlrpc_hpreq_ops *sr_ops;
* rq_list
*/
spinlock_t rq_lock;
+ spinlock_t rq_early_free_lock;
/** client-side flags are serialized by rq_lock @{ */
unsigned int rq_intr:1, rq_replied:1, rq_err:1,
rq_timedout:1, rq_resend:1, rq_restart:1,
* status */
rq_allow_replay:1,
/* bulk request, sent to server, but uncommitted */
- rq_unstable:1;
+ rq_unstable:1,
+ rq_early_free_repbuf:1, /* free reply buffer in advance */
+ rq_allow_intr:1;
/** @} */
/** server-side flags @{ */
/** Transaction number */
__u64 rq_transno;
/** xid */
- __u64 rq_xid;
+ __u64 rq_xid;
+ /** bulk match bits */
+ __u64 rq_mbits;
/**
- * List item to for replay list. Not yet commited requests get linked
+ * List item to for replay list. Not yet committed requests get linked
* there.
* Also see \a rq_replay comment above.
* It's also link chain on obd_export::exp_req_replay_queue
rq_bulk_write:1, /* request bulk write */
/* server authentication flags */
rq_auth_gss:1, /* authenticated by gss */
- rq_auth_remote:1, /* authed as remote user */
rq_auth_usr_root:1, /* authed as root */
rq_auth_usr_mdt:1, /* authed as mdt */
rq_auth_usr_ost:1, /* authed as ost */
/** various buffer pointers */
- struct lustre_msg *rq_reqbuf; /**< req wrapper */
- char *rq_repbuf; /**< rep buffer */
- struct lustre_msg *rq_repdata; /**< rep wrapper msg */
+ struct lustre_msg *rq_reqbuf; /**< req wrapper, vmalloc*/
+ char *rq_repbuf; /**< rep buffer, vmalloc */
+ struct lustre_msg *rq_repdata; /**< rep wrapper msg */
/** only in priv mode */
struct lustre_msg *rq_clrbuf;
int rq_reqbuf_len; /* req wrapper buf len */
/** early replies go to offset 0, regular replies go after that */
unsigned int rq_reply_off;
-
/** @} */
/** Fields that help to see if request and reply were swabbed or not */
/** our LNet NID */
lnet_nid_t rq_self;
/** Peer description (the other side) */
- lnet_process_id_t rq_peer;
+ struct lnet_process_id rq_peer;
+ /** Descriptor for the NID from which the peer sent the request. */
+ struct lnet_process_id rq_source;
/**
* service time estimate (secs)
* If the request is not served by this time, it is marked as timed out.
/**
* when request/reply sent (secs), or time when request should be sent
*/
- time_t rq_sent;
+ time64_t rq_sent;
/** when request must finish. */
- time_t rq_deadline;
+ time64_t rq_deadline;
/** request format description */
struct req_capsule rq_pill;
};
static inline const char *
ptlrpc_phase2str(enum rq_phase phase)
{
- switch (phase) {
- case RQ_PHASE_NEW:
- return "New";
- case RQ_PHASE_RPC:
- return "Rpc";
- case RQ_PHASE_BULK:
- return "Bulk";
- case RQ_PHASE_INTERPRET:
- return "Interpret";
- case RQ_PHASE_COMPLETE:
- return "Complete";
- case RQ_PHASE_UNREGISTERING:
- return "Unregistering";
- default:
- return "?Phase?";
- }
+ switch (phase) {
+ case RQ_PHASE_NEW:
+ return "New";
+ case RQ_PHASE_RPC:
+ return "Rpc";
+ case RQ_PHASE_BULK:
+ return "Bulk";
+ case RQ_PHASE_INTERPRET:
+ return "Interpret";
+ case RQ_PHASE_COMPLETE:
+ return "Complete";
+ case RQ_PHASE_UNREG_RPC:
+ return "UnregRPC";
+ case RQ_PHASE_UNREG_BULK:
+ return "UnregBULK";
+ default:
+ return "?Phase?";
+ }
}
/**
#define FLAG(field, str) (field ? str : "")
/** Convert bit flags into a string */
-#define DEBUG_REQ_FLAGS(req) \
- ptlrpc_rqphase2str(req), \
- FLAG(req->rq_intr, "I"), FLAG(req->rq_replied, "R"), \
- FLAG(req->rq_err, "E"), \
- FLAG(req->rq_timedout, "X") /* eXpired */, FLAG(req->rq_resend, "S"), \
- FLAG(req->rq_restart, "T"), FLAG(req->rq_replay, "P"), \
- FLAG(req->rq_no_resend, "N"), \
- FLAG(req->rq_waiting, "W"), \
- FLAG(req->rq_wait_ctx, "C"), FLAG(req->rq_hp, "H"), \
- FLAG(req->rq_committed, "M")
-
-#define REQ_FLAGS_FMT "%s:%s%s%s%s%s%s%s%s%s%s%s%s"
+#define DEBUG_REQ_FLAGS(req) \
+ ptlrpc_rqphase2str(req), \
+ FLAG(req->rq_intr, "I"), FLAG(req->rq_replied, "R"), \
+ FLAG(req->rq_err, "E"), FLAG(req->rq_net_err, "e"), \
+ FLAG(req->rq_timedout, "X") /* eXpired */, FLAG(req->rq_resend, "S"), \
+ FLAG(req->rq_restart, "T"), FLAG(req->rq_replay, "P"), \
+ FLAG(req->rq_no_resend, "N"), \
+ FLAG(req->rq_waiting, "W"), \
+ FLAG(req->rq_wait_ctx, "C"), FLAG(req->rq_hp, "H"), \
+ FLAG(req->rq_committed, "M")
+
+#define REQ_FLAGS_FMT "%s:%s%s%s%s%s%s%s%s%s%s%s%s%s"
void _debug_req(struct ptlrpc_request *req,
struct libcfs_debug_msg_data *data, const char *fmt, ...)
#define DEBUG_REQ(level, req, fmt, args...) \
do { \
if ((level) & (D_ERROR | D_WARNING)) { \
- static cfs_debug_limit_state_t cdls; \
+ static struct cfs_debug_limit_state cdls; \
LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, level, &cdls); \
debug_req(&msgdata, level, &cdls, req, "@@@ "fmt" ", ## args);\
} else { \
struct page *bp_page;
};
-#define BULK_GET_SOURCE 0
-#define BULK_PUT_SINK 1
-#define BULK_GET_SINK 2
-#define BULK_PUT_SOURCE 3
+enum ptlrpc_bulk_op_type {
+ PTLRPC_BULK_OP_ACTIVE = 0x00000001,
+ PTLRPC_BULK_OP_PASSIVE = 0x00000002,
+ PTLRPC_BULK_OP_PUT = 0x00000004,
+ PTLRPC_BULK_OP_GET = 0x00000008,
+ PTLRPC_BULK_BUF_KVEC = 0x00000010,
+ PTLRPC_BULK_BUF_KIOV = 0x00000020,
+ PTLRPC_BULK_GET_SOURCE = PTLRPC_BULK_OP_PASSIVE | PTLRPC_BULK_OP_GET,
+ PTLRPC_BULK_PUT_SINK = PTLRPC_BULK_OP_PASSIVE | PTLRPC_BULK_OP_PUT,
+ PTLRPC_BULK_GET_SINK = PTLRPC_BULK_OP_ACTIVE | PTLRPC_BULK_OP_GET,
+ PTLRPC_BULK_PUT_SOURCE = PTLRPC_BULK_OP_ACTIVE | PTLRPC_BULK_OP_PUT,
+};
-/**
+static inline bool ptlrpc_is_bulk_op_get(enum ptlrpc_bulk_op_type type)
+{
+ return (type & PTLRPC_BULK_OP_GET) == PTLRPC_BULK_OP_GET;
+}
+
+static inline bool ptlrpc_is_bulk_get_source(enum ptlrpc_bulk_op_type type)
+{
+ return (type & PTLRPC_BULK_GET_SOURCE) == PTLRPC_BULK_GET_SOURCE;
+}
+
+static inline bool ptlrpc_is_bulk_put_sink(enum ptlrpc_bulk_op_type type)
+{
+ return (type & PTLRPC_BULK_PUT_SINK) == PTLRPC_BULK_PUT_SINK;
+}
+
+static inline bool ptlrpc_is_bulk_get_sink(enum ptlrpc_bulk_op_type type)
+{
+ return (type & PTLRPC_BULK_GET_SINK) == PTLRPC_BULK_GET_SINK;
+}
+
+static inline bool ptlrpc_is_bulk_put_source(enum ptlrpc_bulk_op_type type)
+{
+ return (type & PTLRPC_BULK_PUT_SOURCE) == PTLRPC_BULK_PUT_SOURCE;
+}
+
+static inline bool ptlrpc_is_bulk_desc_kvec(enum ptlrpc_bulk_op_type type)
+{
+ return ((type & PTLRPC_BULK_BUF_KVEC) | (type & PTLRPC_BULK_BUF_KIOV))
+ == PTLRPC_BULK_BUF_KVEC;
+}
+
+static inline bool ptlrpc_is_bulk_desc_kiov(enum ptlrpc_bulk_op_type type)
+{
+ return ((type & PTLRPC_BULK_BUF_KVEC) | (type & PTLRPC_BULK_BUF_KIOV))
+ == PTLRPC_BULK_BUF_KIOV;
+}
+
+static inline bool ptlrpc_is_bulk_op_active(enum ptlrpc_bulk_op_type type)
+{
+ return ((type & PTLRPC_BULK_OP_ACTIVE) |
+ (type & PTLRPC_BULK_OP_PASSIVE))
+ == PTLRPC_BULK_OP_ACTIVE;
+}
+
+static inline bool ptlrpc_is_bulk_op_passive(enum ptlrpc_bulk_op_type type)
+{
+ return ((type & PTLRPC_BULK_OP_ACTIVE) |
+ (type & PTLRPC_BULK_OP_PASSIVE))
+ == PTLRPC_BULK_OP_PASSIVE;
+}
+
+struct ptlrpc_bulk_frag_ops {
+ /**
+ * Add a page \a page to the bulk descriptor \a desc
+ * Data to transfer in the page starts at offset \a pageoffset and
+ * amount of data to transfer from the page is \a len
+ */
+ void (*add_kiov_frag)(struct ptlrpc_bulk_desc *desc,
+ struct page *page, int pageoffset, int len);
+
+ /*
+ * Add a \a fragment to the bulk descriptor \a desc.
+ * Data to transfer in the fragment is pointed to by \a frag
+ * The size of the fragment is \a len
+ */
+ int (*add_iov_frag)(struct ptlrpc_bulk_desc *desc, void *frag, int len);
+
+ /**
+ * Uninitialize and free bulk descriptor \a desc.
+ * Works on bulk descriptors both from server and client side.
+ */
+ void (*release_frags)(struct ptlrpc_bulk_desc *desc);
+};
+
+extern const struct ptlrpc_bulk_frag_ops ptlrpc_bulk_kiov_pin_ops;
+extern const struct ptlrpc_bulk_frag_ops ptlrpc_bulk_kiov_nopin_ops;
+extern const struct ptlrpc_bulk_frag_ops ptlrpc_bulk_kvec_ops;
+
+/*
* Definition of bulk descriptor.
* Bulks are special "Two phase" RPCs where initial request message
* is sent first and it is followed bt a transfer (o receiving) of a large
struct ptlrpc_bulk_desc {
/** completed with failure */
unsigned long bd_failure:1;
- /** {put,get}{source,sink} */
- unsigned long bd_type:2;
/** client side */
unsigned long bd_registered:1;
/** For serialization with callback */
spinlock_t bd_lock;
/** Import generation when request for this bulk was sent */
int bd_import_generation;
+ /** {put,get}{source,sink}{kvec,kiov} */
+ enum ptlrpc_bulk_op_type bd_type;
/** LNet portal for this bulk */
__u32 bd_portal;
/** Server side - export this bulk created for */
struct obd_import *bd_import;
/** Back pointer to the request */
struct ptlrpc_request *bd_req;
+ struct ptlrpc_bulk_frag_ops *bd_frag_ops;
wait_queue_head_t bd_waitq; /* server side only WQ */
int bd_iov_count; /* # entries in bd_iov */
int bd_max_iov; /* allocated size of bd_iov */
int bd_nob; /* # bytes covered */
int bd_nob_transferred; /* # bytes GOT/PUT */
- __u64 bd_last_xid;
+ __u64 bd_last_mbits;
struct ptlrpc_cb_id bd_cbid; /* network callback info */
lnet_nid_t bd_sender; /* stash event::sender */
int bd_md_count; /* # valid entries in bd_mds */
int bd_md_max_brw; /* max entries in bd_mds */
/** array of associated MDs */
- lnet_handle_md_t bd_mds[PTLRPC_BULK_OPS_COUNT];
+ struct lnet_handle_md bd_mds[PTLRPC_BULK_OPS_COUNT];
- /*
- * encrypt iov, size is either 0 or bd_iov_count.
- */
- lnet_kiov_t *bd_enc_iov;
+ union {
+ struct {
+ /*
+ * encrypt iov, size is either 0 or bd_iov_count.
+ */
+ lnet_kiov_t *bd_enc_vec;
+ lnet_kiov_t *bd_vec;
+ } bd_kiov;
+
+ struct {
+ struct kvec *bd_enc_kvec;
+ struct kvec *bd_kvec;
+ } bd_kvec;
+ } bd_u;
- lnet_kiov_t bd_iov[0];
};
+#define GET_KIOV(desc) ((desc)->bd_u.bd_kiov.bd_vec)
+#define BD_GET_KIOV(desc, i) ((desc)->bd_u.bd_kiov.bd_vec[i])
+#define GET_ENC_KIOV(desc) ((desc)->bd_u.bd_kiov.bd_enc_vec)
+#define BD_GET_ENC_KIOV(desc, i) ((desc)->bd_u.bd_kiov.bd_enc_vec[i])
+#define GET_KVEC(desc) ((desc)->bd_u.bd_kvec.bd_kvec)
+#define BD_GET_KVEC(desc, i) ((desc)->bd_u.bd_kvec.bd_kvec[i])
+#define GET_ENC_KVEC(desc) ((desc)->bd_u.bd_kvec.bd_enc_kvec)
+#define BD_GET_ENC_KVEC(desc, i) ((desc)->bd_u.bd_kvec.bd_enc_kvec[i])
+
enum {
- SVC_STOPPED = 1 << 0,
- SVC_STOPPING = 1 << 1,
- SVC_STARTING = 1 << 2,
- SVC_RUNNING = 1 << 3,
- SVC_EVENT = 1 << 4,
- SVC_SIGNAL = 1 << 5,
+ SVC_INIT = 0,
+ SVC_STOPPED = 1 << 0,
+ SVC_STOPPING = 1 << 1,
+ SVC_STARTING = 1 << 2,
+ SVC_RUNNING = 1 << 3,
+ SVC_EVENT = 1 << 4,
+ SVC_SIGNAL = 1 << 5,
};
#define PTLRPC_THR_NAME_LEN 32
* Definition of server service thread structure
*/
struct ptlrpc_thread {
- /**
- * List of active threads in svc->srv_threads
- */
+ /**
+ * List of active threads in svc->srv_threads
+ */
struct list_head t_link;
- /**
- * thread-private data (preallocated memory)
- */
- void *t_data;
- __u32 t_flags;
- /**
- * service thread index, from ptlrpc_start_threads
- */
- unsigned int t_id;
- /**
- * service thread pid
- */
- pid_t t_pid;
- /**
- * put watchdog in the structure per thread b=14840
- */
- struct lc_watchdog *t_watchdog;
- /**
- * the svc this thread belonged to b=18582
- */
+ /**
+ * thread-private data (preallocated vmalloc'd memory)
+ */
+ void *t_data;
+ __u32 t_flags;
+ /**
+ * service thread index, from ptlrpc_start_threads
+ */
+ unsigned int t_id;
+ /**
+ * service thread pid
+ */
+ pid_t t_pid;
+ /**
+ * put watchdog in the structure per thread b=14840
+ */
+ struct lc_watchdog *t_watchdog;
+ /**
+ * the svc this thread belonged to b=18582
+ */
struct ptlrpc_service_part *t_svcpt;
wait_queue_head_t t_ctl_waitq;
struct lu_env *t_env;
/** Back pointer to service for which this buffer is registered */
struct ptlrpc_service_part *rqbd_svcpt;
/** LNet descriptor */
- lnet_handle_md_t rqbd_md_h;
+ struct lnet_handle_md rqbd_md_h;
int rqbd_refcount;
/** The buffer itself */
char *rqbd_buffer;
int srv_cpt_bits;
/** CPT table this service is running over */
struct cfs_cpt_table *srv_cptable;
+
+ /* sysfs object */
+ struct kobject srv_kobj;
+ struct completion srv_kobj_unregister;
/**
* partition data for ptlrpc service
*/
* Stop completion.
*/
struct completion pc_finishing;
- /**
- * Thread requests set.
- */
- struct ptlrpc_request_set *pc_set;
- /**
+ /**
+ * Thread requests set.
+ */
+ struct ptlrpc_request_set *pc_set;
+ /**
* Thread name used in kthread_run()
- */
- char pc_name[16];
- /**
- * Environment for request interpreters to run in.
- */
- struct lu_env pc_env;
+ */
+ char pc_name[16];
+ /**
+ * CPT the thread is bound on.
+ */
+ int pc_cpt;
/**
* Index of ptlrpcd thread in the array.
*/
- int pc_index;
- /**
- * Number of the ptlrpcd's partners.
- */
- int pc_npartners;
- /**
- * Pointer to the array of partners' ptlrpcd_ctl structure.
- */
- struct ptlrpcd_ctl **pc_partners;
- /**
- * Record the partner index to be processed next.
- */
- int pc_cursor;
+ int pc_index;
+ /**
+ * Pointer to the array of partners' ptlrpcd_ctl structure.
+ */
+ struct ptlrpcd_ctl **pc_partners;
+ /**
+ * Number of the ptlrpcd's partners.
+ */
+ int pc_npartners;
+ /**
+ * Record the partner index to be processed next.
+ */
+ int pc_cursor;
+ /**
+ * Error code if the thread failed to fully start.
+ */
+ int pc_error;
};
/* Bits for pc_flags */
* This is a recovery ptlrpc thread.
*/
LIOD_RECOVERY = 1 << 3,
- /**
- * The ptlrpcd is bound to some CPU core.
- */
- LIOD_BIND = 1 << 4,
};
/**
/** @} nrs */
/* ptlrpc/events.c */
-extern lnet_handle_eq_t ptlrpc_eq_h;
+extern struct lnet_handle_eq ptlrpc_eq_h;
extern int ptlrpc_uuid_to_peer(struct obd_uuid *uuid,
- lnet_process_id_t *peer, lnet_nid_t *self);
+ struct lnet_process_id *peer, lnet_nid_t *self);
/**
* These callbacks are invoked by LNet when something happened to
* underlying buffer
* @{
*/
-extern void request_out_callback(lnet_event_t *ev);
-extern void reply_in_callback(lnet_event_t *ev);
-extern void client_bulk_callback(lnet_event_t *ev);
-extern void request_in_callback(lnet_event_t *ev);
-extern void reply_out_callback(lnet_event_t *ev);
+extern void request_out_callback(struct lnet_event *ev);
+extern void reply_in_callback(struct lnet_event *ev);
+extern void client_bulk_callback(struct lnet_event *ev);
+extern void request_in_callback(struct lnet_event *ev);
+extern void reply_out_callback(struct lnet_event *ev);
#ifdef HAVE_SERVER_SUPPORT
-extern void server_bulk_callback(lnet_event_t *ev);
+extern void server_bulk_callback(struct lnet_event *ev);
#endif
/** @} */
/* ptlrpc/connection.c */
-struct ptlrpc_connection *ptlrpc_connection_get(lnet_process_id_t peer,
+struct ptlrpc_connection *ptlrpc_connection_get(struct lnet_process_id peer,
lnet_nid_t self,
struct obd_uuid *uuid);
int ptlrpc_connection_put(struct ptlrpc_connection *c);
void ptlrpc_connection_fini(void);
extern lnet_pid_t ptl_get_pid(void);
+/*
+ * Check if the peer connection is on the local node. We need to use GFP_NOFS
+ * for requests from a local client to avoid recursing into the filesystem
+ * as we might end up waiting on a page sent in the request we're serving.
+ *
+ * Use __GFP_HIGHMEM so that the pages can use all of the available memory
+ * on 32-bit machines. Use more aggressive GFP_HIGHUSER flags from non-local
+ * clients to be able to generate more memory pressure on the OSS and allow
+ * inactive pages to be reclaimed, since it doesn't have any other processes
+ * or allocations that generate memory reclaim pressure.
+ *
+ * See b=17576 (bdf50dc9) and b=19529 (3dcf18d3) for details.
+ */
+static inline bool ptlrpc_connection_is_local(struct ptlrpc_connection *conn)
+{
+ if (!conn)
+ return false;
+
+ if (conn->c_peer.nid == conn->c_self)
+ return true;
+
+ RETURN(LNetIsPeerLocal(conn->c_peer.nid));
+}
+
/* ptlrpc/niobuf.c */
/**
* Actual interfacing with LNet to put/get/register/unregister stuff
*/
#ifdef HAVE_SERVER_SUPPORT
struct ptlrpc_bulk_desc *ptlrpc_prep_bulk_exp(struct ptlrpc_request *req,
- unsigned npages, unsigned max_brw,
- unsigned type, unsigned portal);
+ unsigned nfrags, unsigned max_brw,
+ unsigned int type,
+ unsigned portal,
+ const struct ptlrpc_bulk_frag_ops
+ *ops);
int ptlrpc_start_bulk_transfer(struct ptlrpc_bulk_desc *desc);
void ptlrpc_abort_bulk(struct ptlrpc_bulk_desc *desc);
static inline int ptlrpc_client_bulk_active(struct ptlrpc_request *req)
{
struct ptlrpc_bulk_desc *desc;
- int rc;
+ int rc;
- LASSERT(req != NULL);
+ LASSERT(req != NULL);
desc = req->rq_bulk;
- if (OBD_FAIL_CHECK(OBD_FAIL_PTLRPC_LONG_BULK_UNLINK) &&
- req->rq_bulk_deadline > cfs_time_current_sec())
- return 1;
+ if (req->rq_bulk_deadline > ktime_get_real_seconds())
+ return 1;
- if (!desc)
- return 0;
+ if (!desc)
+ return 0;
spin_lock(&desc->bd_lock);
rc = desc->bd_md_count;
void ptlrpc_init_client(int req_portal, int rep_portal, char *name,
struct ptlrpc_client *);
void ptlrpc_cleanup_client(struct obd_import *imp);
-struct ptlrpc_connection *ptlrpc_uuid_to_connection(struct obd_uuid *uuid);
+struct ptlrpc_connection *ptlrpc_uuid_to_connection(struct obd_uuid *uuid,
+ lnet_nid_t nid4refnet);
int ptlrpc_queue_wait(struct ptlrpc_request *req);
int ptlrpc_replay_req(struct ptlrpc_request *req);
void ptlrpc_set_add_req(struct ptlrpc_request_set *, struct ptlrpc_request *);
void ptlrpc_free_rq_pool(struct ptlrpc_request_pool *pool);
-void ptlrpc_add_rqs_to_pool(struct ptlrpc_request_pool *pool, int num_rq);
+int ptlrpc_add_rqs_to_pool(struct ptlrpc_request_pool *pool, int num_rq);
struct ptlrpc_request_pool *
ptlrpc_init_rq_pool(int, int,
- void (*populate_pool)(struct ptlrpc_request_pool *, int));
+ int (*populate_pool)(struct ptlrpc_request_pool *, int));
void ptlrpc_at_set_req_timeout(struct ptlrpc_request *req);
struct ptlrpc_request *ptlrpc_request_alloc(struct obd_import *imp,
int ptlrpc_request_bufs_pack(struct ptlrpc_request *request,
__u32 version, int opcode, char **bufs,
struct ptlrpc_cli_ctx *ctx);
-struct ptlrpc_request *ptlrpc_prep_req(struct obd_import *imp, __u32 version,
- int opcode, int count, __u32 *lengths,
- char **bufs);
-struct ptlrpc_request *ptlrpc_prep_req_pool(struct obd_import *imp,
- __u32 version, int opcode,
- int count, __u32 *lengths, char **bufs,
- struct ptlrpc_request_pool *pool);
void ptlrpc_req_finished(struct ptlrpc_request *request);
void ptlrpc_req_finished_with_imp_lock(struct ptlrpc_request *request);
struct ptlrpc_request *ptlrpc_request_addref(struct ptlrpc_request *req);
struct ptlrpc_bulk_desc *ptlrpc_prep_bulk_imp(struct ptlrpc_request *req,
- unsigned npages, unsigned max_brw,
- unsigned type, unsigned portal);
-void __ptlrpc_free_bulk(struct ptlrpc_bulk_desc *bulk, int pin);
-static inline void ptlrpc_free_bulk_pin(struct ptlrpc_bulk_desc *bulk)
-{
- __ptlrpc_free_bulk(bulk, 1);
-}
-static inline void ptlrpc_free_bulk_nopin(struct ptlrpc_bulk_desc *bulk)
-{
- __ptlrpc_free_bulk(bulk, 0);
-}
+ unsigned nfrags, unsigned max_brw,
+ unsigned int type,
+ unsigned portal,
+ const struct ptlrpc_bulk_frag_ops
+ *ops);
+
+int ptlrpc_prep_bulk_frag(struct ptlrpc_bulk_desc *desc,
+ void *frag, int len);
void __ptlrpc_prep_bulk_page(struct ptlrpc_bulk_desc *desc,
- struct page *page, int pageoffset, int len, int);
+ struct page *page, int pageoffset, int len,
+ int pin);
static inline void ptlrpc_prep_bulk_page_pin(struct ptlrpc_bulk_desc *desc,
struct page *page, int pageoffset,
int len)
__ptlrpc_prep_bulk_page(desc, page, pageoffset, len, 0);
}
+void ptlrpc_free_bulk(struct ptlrpc_bulk_desc *bulk);
+
+static inline void ptlrpc_release_bulk_page_pin(struct ptlrpc_bulk_desc *desc)
+{
+ int i;
+
+ for (i = 0; i < desc->bd_iov_count ; i++)
+ put_page(BD_GET_KIOV(desc, i).kiov_page);
+}
+
+static inline void ptlrpc_release_bulk_noop(struct ptlrpc_bulk_desc *desc)
+{
+}
+
void ptlrpc_retain_replayable_request(struct ptlrpc_request *req,
struct obd_import *imp);
__u64 ptlrpc_next_xid(void);
*
* @{
*/
-void ptlrpc_save_lock(struct ptlrpc_request *req,
- struct lustre_handle *lock, int mode, int no_ack);
+void ptlrpc_save_lock(struct ptlrpc_request *req, struct lustre_handle *lock,
+ int mode, bool no_ack, bool convert_lock);
void ptlrpc_commit_replies(struct obd_export *exp);
void ptlrpc_dispatch_difficult_reply(struct ptlrpc_reply_state *rs);
void ptlrpc_schedule_difficult_reply(struct ptlrpc_reply_state *rs);
int ptlrpc_hpreq_handler(struct ptlrpc_request *req);
struct ptlrpc_service *ptlrpc_register_service(
struct ptlrpc_service_conf *conf,
+ struct kset *parent,
struct proc_dir_entry *proc_entry);
void ptlrpc_stop_all_threads(struct ptlrpc_service *svc);
int ptlrpc_disconnect_import(struct obd_import *imp, int noclose);
int ptlrpc_import_recovery_state_machine(struct obd_import *imp);
void deuuidify(char *uuid, const char *prefix, char **uuid_start,
- int *uuid_len);
-
+ int *uuid_len);
+void ptlrpc_import_enter_resend(struct obd_import *imp);
/* ptlrpc/pack_generic.c */
int ptlrpc_reconnect_import(struct obd_import *imp);
/** @} */
__u32 lustre_msg_get_service_time(struct lustre_msg *msg);
char *lustre_msg_get_jobid(struct lustre_msg *msg);
__u32 lustre_msg_get_cksum(struct lustre_msg *msg);
-#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 7, 53, 0)
-__u32 lustre_msg_calc_cksum(struct lustre_msg *msg, int compat18);
-#else
+__u64 lustre_msg_get_mbits(struct lustre_msg *msg);
__u32 lustre_msg_calc_cksum(struct lustre_msg *msg);
-#endif
void lustre_msg_set_handle(struct lustre_msg *msg,struct lustre_handle *handle);
void lustre_msg_set_type(struct lustre_msg *msg, __u32 type);
void lustre_msg_set_opc(struct lustre_msg *msg, __u32 opc);
void lustre_msg_set_service_time(struct lustre_msg *msg, __u32 service_time);
void lustre_msg_set_jobid(struct lustre_msg *msg, char *jobid);
void lustre_msg_set_cksum(struct lustre_msg *msg, __u32 cksum);
+void lustre_msg_set_mbits(struct lustre_msg *msg, __u64 mbits);
static inline void
lustre_shrink_reply(struct ptlrpc_request *req, int segment,
if (req->rq_phase == new_phase)
return;
- if (new_phase == RQ_PHASE_UNREGISTERING) {
+ if (new_phase == RQ_PHASE_UNREG_RPC ||
+ new_phase == RQ_PHASE_UNREG_BULK) {
+ /* No embedded unregistering phases */
+ if (req->rq_phase == RQ_PHASE_UNREG_RPC ||
+ req->rq_phase == RQ_PHASE_UNREG_BULK)
+ return;
+
req->rq_next_phase = req->rq_phase;
if (req->rq_import)
atomic_inc(&req->rq_import->imp_unregistering);
}
- if (req->rq_phase == RQ_PHASE_UNREGISTERING) {
+ if (req->rq_phase == RQ_PHASE_UNREG_RPC ||
+ req->rq_phase == RQ_PHASE_UNREG_BULK) {
if (req->rq_import)
atomic_dec(&req->rq_import->imp_unregistering);
}
static inline int
ptlrpc_client_early(struct ptlrpc_request *req)
{
- if (OBD_FAIL_CHECK(OBD_FAIL_PTLRPC_LONG_REPL_UNLINK) &&
- req->rq_reply_deadline > cfs_time_current_sec())
- return 0;
return req->rq_early;
}
static inline int
ptlrpc_client_replied(struct ptlrpc_request *req)
{
- if (OBD_FAIL_CHECK(OBD_FAIL_PTLRPC_LONG_REPL_UNLINK) &&
- req->rq_reply_deadline > cfs_time_current_sec())
- return 0;
- return req->rq_replied;
+ if (req->rq_reply_deadline > ktime_get_real_seconds())
+ return 0;
+ return req->rq_replied;
}
/** Returns true if request \a req is in process of receiving server reply */
static inline int
ptlrpc_client_recv(struct ptlrpc_request *req)
{
- if (OBD_FAIL_CHECK(OBD_FAIL_PTLRPC_LONG_REPL_UNLINK) &&
- req->rq_reply_deadline > cfs_time_current_sec())
- return 1;
- return req->rq_receiving_reply;
+ if (req->rq_reply_deadline > ktime_get_real_seconds())
+ return 1;
+ return req->rq_receiving_reply;
}
static inline int
int rc;
spin_lock(&req->rq_lock);
- if (OBD_FAIL_CHECK(OBD_FAIL_PTLRPC_LONG_REPL_UNLINK) &&
- req->rq_reply_deadline > cfs_time_current_sec()) {
+ if (req->rq_reply_deadline > ktime_get_real_seconds()) {
spin_unlock(&req->rq_lock);
return 1;
}
+ if (req->rq_req_deadline > ktime_get_real_seconds()) {
+ spin_unlock(&req->rq_lock);
+ return 1;
+ }
+
rc = !req->rq_req_unlinked || !req->rq_reply_unlinked ||
req->rq_receiving_reply;
spin_unlock(&req->rq_lock);
static inline void
ptlrpc_client_wake_req(struct ptlrpc_request *req)
{
+ smp_mb();
if (req->rq_set == NULL)
wake_up(&req->rq_reply_waitq);
else
/** @} */
int ptlrpc_pinger_suppress_pings(void);
-/* ptlrpc daemon bind policy */
-typedef enum {
- /* all ptlrpcd threads are free mode */
- PDB_POLICY_NONE = 1,
- /* all ptlrpcd threads are bound mode */
- PDB_POLICY_FULL = 2,
- /* <free1 bound1> <free2 bound2> ... <freeN boundN> */
- PDB_POLICY_PAIR = 3,
- /* <free1 bound1> <bound1 free2> ... <freeN boundN> <boundN free1>,
- * means each ptlrpcd[X] has two partners: thread[X-1] and thread[X+1].
- * If kernel supports NUMA, pthrpcd threads are binded and
- * grouped by NUMA node */
- PDB_POLICY_NEIGHBOR = 4,
-} pdb_policy_t;
-
-/* ptlrpc daemon load policy
- * It is caller's duty to specify how to push the async RPC into some ptlrpcd
- * queue, but it is not enforced, affected by "ptlrpcd_bind_policy". If it is
- * "PDB_POLICY_FULL", then the RPC will be processed by the selected ptlrpcd,
- * Otherwise, the RPC may be processed by the selected ptlrpcd or its partner,
- * depends on which is scheduled firstly, to accelerate the RPC processing. */
-typedef enum {
- /* on the same CPU core as the caller */
- PDL_POLICY_SAME = 1,
- /* within the same CPU partition, but not the same core as the caller */
- PDL_POLICY_LOCAL = 2,
- /* round-robin on all CPU cores, but not the same core as the caller */
- PDL_POLICY_ROUND = 3,
- /* the specified CPU core is preferred, but not enforced */
- PDL_POLICY_PREFERRED = 4,
-} pdl_policy_t;
-
/* ptlrpc/ptlrpcd.c */
void ptlrpcd_stop(struct ptlrpcd_ctl *pc, int force);
void ptlrpcd_free(struct ptlrpcd_ctl *pc);
void ptlrpcd_wake(struct ptlrpc_request *req);
-void ptlrpcd_add_req(struct ptlrpc_request *req, pdl_policy_t policy, int idx);
+void ptlrpcd_add_req(struct ptlrpc_request *req);
void ptlrpcd_add_rqset(struct ptlrpc_request_set *set);
int ptlrpcd_addref(void);
void ptlrpcd_decref(void);
* @{
*/
const char* ll_opcode2str(__u32 opcode);
+const int ll_str2opcode(const char *ops);
#ifdef CONFIG_PROC_FS
void ptlrpc_lprocfs_register_obd(struct obd_device *obd);
void ptlrpc_lprocfs_unregister_obd(struct obd_device *obd);
/* ptlrpc/llog_client.c */
extern struct llog_operations llog_client_ops;
-
/** @} net */
#endif
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