*
* 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, 2012, Intel Corporation.
+ * Copyright (c) 2010, 2016, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* @{
*/
-#if defined(__linux__)
-#include <linux/lustre_net.h>
-#elif defined(__APPLE__)
-#include <darwin/lustre_net.h>
-#elif defined(__WINNT__)
-#include <winnt/lustre_net.h>
-#else
-#error Unsupported operating system.
-#endif
-
+#include <linux/uio.h>
#include <libcfs/libcfs.h>
-// #include <obd.h>
-#include <lnet/lnet.h>
+#include <lnet/nidstr.h>
+#include <lnet/api.h>
#include <lustre/lustre_idl.h>
#include <lustre_ha.h>
#include <lustre_sec.h>
#include <lprocfs_status.h>
#include <lu_object.h>
#include <lustre_req_layout.h>
-
#include <obd_support.h>
#include <lustre_ver.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
*/
#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 >> CFS_PAGE_SHIFT)
+#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 >> CFS_PAGE_SHIFT)
+#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 >> CFS_PAGE_SHIFT)
+#define DT_MAX_BRW_PAGES (DT_MAX_BRW_SIZE >> PAGE_SHIFT)
#define OFD_MAX_BRW_SIZE (1 << LNET_MTU_BITS)
/* When PAGE_SIZE is a constant, we can check our arithmetic here with cpp! */
-#ifdef __KERNEL__
-# 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 * CFS_PAGE_SIZE))
-# error "PTLRPC_MAX_BRW_SIZE isn't PTLRPC_MAX_BRW_PAGES * CFS_PAGE_SIZE"
-# endif
-# if (PTLRPC_MAX_BRW_SIZE > LNET_MTU * PTLRPC_BULK_OPS_COUNT)
-# error "PTLRPC_MAX_BRW_SIZE too big"
-# endif
-# if (PTLRPC_MAX_BRW_PAGES > LNET_MAX_IOV * PTLRPC_BULK_OPS_COUNT)
-# error "PTLRPC_MAX_BRW_PAGES too big"
-# endif
-#endif /* __KERNEL__ */
+#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_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"
+#endif
+#if (PTLRPC_MAX_BRW_PAGES > LNET_MAX_IOV * PTLRPC_BULK_OPS_COUNT)
+# error "PTLRPC_MAX_BRW_PAGES too big"
+#endif
#define PTLRPC_NTHRS_INIT 2
* threads for each partition to keep service healthy, so total threads
* number should be 24 * 8 = 192.
*
- * So with these constants, threads number wil be at the similar level
+ * So with these constants, threads number will be at the similar level
* of old versions, unless target machine has over a hundred cores
*/
#define LDLM_THR_FACTOR 8
#define LDLM_NTHRS_INIT PTLRPC_NTHRS_INIT
#define LDLM_NTHRS_BASE 24
-#define LDLM_NTHRS_MAX (cfs_num_online_cpus() == 1 ? 64 : 128)
+#define LDLM_NTHRS_MAX (num_online_cpus() == 1 ? 64 : 128)
-#define LDLM_BL_THREADS LDLM_NTHRS_AUTO_INIT
-#define LDLM_NBUFS 64
-#define LDLM_BUFSIZE (8 * 1024)
-#define LDLM_MAXREQSIZE (5 * 1024)
-#define LDLM_MAXREPSIZE (1024)
+#define LDLM_BL_THREADS LDLM_NTHRS_AUTO_INIT
+#define LDLM_CLIENT_NBUFS 1
+#define LDLM_SERVER_NBUFS 64
+#define LDLM_BUFSIZE (8 * 1024)
+#define LDLM_MAXREQSIZE (5 * 1024)
+#define LDLM_MAXREPSIZE (1024)
/*
* MDS threads constants:
#define MDS_OTHR_NTHRS_MAX MDS_MAX_OTHR_THREADS
#define MDS_NBUFS 64
+
/**
* Assume file name length = FNAME_MAX = 256 (true for ext3).
* path name length = PATH_MAX = 4096
#define MDS_LOV_MAXREPSIZE MDS_LOV_MAXREQSIZE
/**
+ * This is the size of a maximum REINT_SETXATTR request:
+ *
+ * lustre_msg 56 (32 + 4 x 5 + 4)
+ * ptlrpc_body 184
+ * mdt_rec_setxattr 136
+ * lustre_capa 120
+ * name 256 (XATTR_NAME_MAX)
+ * value 65536 (XATTR_SIZE_MAX)
+ */
+#define MDS_EA_MAXREQSIZE 66288
+
+/**
+ * These are the maximum request and reply sizes (rounded up to 1 KB
+ * boundaries) for the "regular" MDS_REQUEST_PORTAL and MDS_REPLY_PORTAL.
+ */
+#define MDS_REG_MAXREQSIZE (((max(MDS_EA_MAXREQSIZE, \
+ MDS_LOV_MAXREQSIZE) + 1023) >> 10) << 10)
+#define MDS_REG_MAXREPSIZE MDS_REG_MAXREQSIZE
+
+/**
* The update request includes all of updates from the create, which might
- * include linkea (4K maxim), together with other updates, we set it to 9K:
- * lustre_msg + ptlrpc_body + UPDATE_BUF_SIZE (8K)
+ * include linkea (4K maxim), together with other updates, we set it to 1000K:
+ * lustre_msg + ptlrpc_body + OUT_UPDATE_BUFFER_SIZE_MAX
*/
-#define MDS_OUT_MAXREQSIZE (9 * 1024)
-#define MDS_OUT_MAXREPSIZE MDS_MAXREPSIZE
+#define OUT_MAXREQSIZE (1000 * 1024)
+#define OUT_MAXREPSIZE MDS_MAXREPSIZE
/** MDS_BUFSIZE = max_reqsize (w/o LOV EA) + max sptlrpc payload size */
-#define MDS_BUFSIZE max_t(int, MDS_MAXREQSIZE + 1024, 8 * 1024)
+#define MDS_BUFSIZE max(MDS_MAXREQSIZE + SPTLRPC_MAX_PAYLOAD, \
+ 8 * 1024)
/**
- * MDS_LOV_BUFSIZE should be at least max_reqsize (with LOV EA) +
- * max sptlrpc payload size, however, we need to allocate a much larger buffer
- * for it because LNet requires each MD(rqbd) has at least MDS_LOVE_MAXREQSIZE
- * bytes left to avoid dropping of maximum-sized incoming request.
- * So if MDS_LOV_BUFSIZE is only a little larger than MDS_LOV_MAXREQSIZE,
- * then it can only fit in one request even there are 48K bytes left in
- * a rqbd, and memory utilization is very low.
+ * MDS_REG_BUFSIZE should at least be MDS_REG_MAXREQSIZE + SPTLRPC_MAX_PAYLOAD.
+ * However, we need to allocate a much larger buffer for it because LNet
+ * requires each MD(rqbd) has at least MDS_REQ_MAXREQSIZE bytes left to avoid
+ * dropping of maximum-sized incoming request. So if MDS_REG_BUFSIZE is only a
+ * little larger than MDS_REG_MAXREQSIZE, then it can only fit in one request
+ * even there are about MDS_REG_MAX_REQSIZE bytes left in a rqbd, and memory
+ * utilization is very low.
*
* In the meanwhile, size of rqbd can't be too large, because rqbd can't be
* reused until all requests fit in it have been processed and released,
* which means one long blocked request can prevent the rqbd be reused.
- * Now we set request buffer size to 128K, so even each rqbd is unlinked
- * from LNet with unused 48K, buffer utilization will be about 62%.
+ * Now we set request buffer size to 160 KB, so even each rqbd is unlinked
+ * from LNet with unused 65 KB, buffer utilization will be about 59%.
* Please check LU-2432 for details.
*/
-/** MDS_LOV_BUFSIZE = max_reqsize (w/ LOV EA) + max sptlrpc payload size */
-#define MDS_LOV_BUFSIZE max_t(int, MDS_LOV_MAXREQSIZE + 1024, \
- 128 * 1024)
+#define MDS_REG_BUFSIZE max(MDS_REG_MAXREQSIZE + SPTLRPC_MAX_PAYLOAD, \
+ 160 * 1024)
/**
- * MDS_OUT_BUFSIZE = max_out_reqsize + max sptlrpc payload (~1K) which is
- * about 10K, for the same reason as MDS_LOV_BUFSIZE, we also give some
+ * OUT_BUFSIZE = max_out_reqsize + max sptlrpc payload (~1K) which is
+ * about 10K, for the same reason as MDS_REG_BUFSIZE, we also give some
* extra bytes to each request buffer to improve buffer utilization rate.
*/
-#define MDS_OUT_BUFSIZE max_t(int, MDS_OUT_MAXREQSIZE + 1024, \
- 24 * 1024)
+#define OUT_BUFSIZE max(OUT_MAXREQSIZE + SPTLRPC_MAX_PAYLOAD, \
+ 24 * 1024)
/** FLD_MAXREQSIZE == lustre_msg + __u32 padding + ptlrpc_body + opc */
#define FLD_MAXREQSIZE (160)
*/
/* depress threads factor for VM with small memory size */
#define OSS_THR_FACTOR min_t(int, 8, \
- CFS_NUM_CACHEPAGES >> (28 - CFS_PAGE_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
#define OSS_CR_NTHRS_MAX 64
/**
- * OST_MAXREQSIZE ~=
- * lustre_msg + obdo + obd_ioobj + DT_MAX_BRW_PAGES * niobuf_remote
+ * OST_IO_MAXREQSIZE ~=
+ * lustre_msg + ptlrpc_body + obdo + obd_ioobj +
+ * DT_MAX_BRW_PAGES * niobuf_remote
*
* - single object with 16 pages is 512 bytes
- * - OST_MAXREQSIZE must be at least 1 page of cookies plus some spillover
+ * - OST_IO_MAXREQSIZE must be at least 1 page of cookies plus some spillover
* - Must be a multiple of 1024
+ * - actual size is about 18K
+ */
+#define _OST_MAXREQSIZE_SUM (sizeof(struct lustre_msg) + \
+ sizeof(struct ptlrpc_body) + \
+ sizeof(struct obdo) + \
+ sizeof(struct obd_ioobj) + \
+ sizeof(struct niobuf_remote) * DT_MAX_BRW_PAGES)
+/**
+ * FIEMAP request can be 4K+ for now
*/
-#define _OST_MAXREQSIZE_SUM (sizeof(struct lustre_msg) + sizeof(struct obdo) + \
- sizeof(struct obd_ioobj) + DT_MAX_BRW_PAGES * \
- sizeof(struct niobuf_remote))
-#define OST_MAXREQSIZE (((_OST_MAXREQSIZE_SUM - 1) | (1024 - 1)) + 1)
+#define OST_MAXREQSIZE (16 * 1024)
+#define OST_IO_MAXREQSIZE max_t(int, OST_MAXREQSIZE, \
+ (((_OST_MAXREQSIZE_SUM - 1) | (1024 - 1)) + 1))
-#define OST_MAXREPSIZE (9 * 1024)
+#define OST_MAXREPSIZE (9 * 1024)
+#define OST_IO_MAXREPSIZE OST_MAXREPSIZE
-#define OST_NBUFS 64
-#define OST_BUFSIZE (OST_MAXREQSIZE + 1024)
+#define OST_NBUFS 64
+/** OST_BUFSIZE = max_reqsize + max sptlrpc payload size */
+#define OST_BUFSIZE max_t(int, OST_MAXREQSIZE + 1024, 16 * 1024)
+/**
+ * OST_IO_MAXREQSIZE is 18K, giving extra 46K can increase buffer utilization
+ * rate of request buffer, please check comment of MDS_LOV_BUFSIZE for details.
+ */
+#define OST_IO_BUFSIZE max_t(int, OST_IO_MAXREQSIZE + 1024, 64 * 1024)
/* Macro to hide a typecast. */
#define ptlrpc_req_async_args(req) ((void *)&req->rq_async_args)
+struct ptlrpc_replay_async_args {
+ int praa_old_state;
+ int praa_old_status;
+};
+
/**
* Structure to single define portal connection.
*/
struct ptlrpc_connection {
- /** linkage for connections hash table */
- cfs_hlist_node_t c_hash;
- /** Our own lnet nid for this connection */
- lnet_nid_t c_self;
- /** Remote side nid for this connection */
- lnet_process_id_t c_peer;
- /** UUID of the other side */
- struct obd_uuid c_remote_uuid;
- /** reference counter for this connection */
- cfs_atomic_t c_refcount;
+ /** linkage for connections hash table */
+ struct hlist_node c_hash;
+ /** Our own lnet nid for this connection */
+ lnet_nid_t c_self;
+ /** Remote side nid for this connection */
+ lnet_process_id_t c_peer;
+ /** UUID of the other side */
+ struct obd_uuid c_remote_uuid;
+ /** reference counter for this connection */
+ atomic_t c_refcount;
};
/** Client definition for PortalRPC */
* returned.
*/
struct ptlrpc_request_set {
- cfs_atomic_t set_refcount;
+ atomic_t set_refcount;
/** number of in queue requests */
- cfs_atomic_t set_new_count;
+ atomic_t set_new_count;
/** number of uncompleted requests */
- cfs_atomic_t set_remaining;
+ atomic_t set_remaining;
/** wait queue to wait on for request events */
- cfs_waitq_t set_waitq;
- cfs_waitq_t *set_wakeup_ptr;
+ wait_queue_head_t set_waitq;
+ wait_queue_head_t *set_wakeup_ptr;
/** List of requests in the set */
- cfs_list_t set_requests;
+ struct list_head set_requests;
/**
* List of completion callbacks to be called when the set is completed
* This is only used if \a set_interpret is NULL.
* Links struct ptlrpc_set_cbdata.
*/
- cfs_list_t set_cblist;
+ struct list_head set_cblist;
/** Completion callback, if only one. */
- set_interpreter_func set_interpret;
+ set_interpreter_func set_interpret;
/** opaq argument passed to completion \a set_interpret callback. */
- void *set_arg;
+ void *set_arg;
/**
* Lock for \a set_new_requests manipulations
* locked so that any old caller can communicate requests to
*/
spinlock_t set_new_req_lock;
/** List of new yet unsent requests. Only used with ptlrpcd now. */
- cfs_list_t set_new_requests;
+ struct list_head set_new_requests;
/** rq_status of requests that have been freed already */
- int set_rc;
+ int set_rc;
/** Additional fields used by the flow control extension */
/** Maximum number of RPCs in flight */
- int set_max_inflight;
+ int set_max_inflight;
/** Callback function used to generate RPCs */
- set_producer_func set_producer;
+ set_producer_func set_producer;
/** opaq argument passed to the producer callback */
- void *set_producer_arg;
+ void *set_producer_arg;
+ unsigned int set_allow_intr:1;
};
/**
* Description of a single ptrlrpc_set callback
*/
struct ptlrpc_set_cbdata {
- /** List linkage item */
- cfs_list_t psc_item;
- /** Pointer to interpreting function */
- set_interpreter_func psc_interpret;
- /** Opaq argument to pass to the callback */
- void *psc_data;
+ /** List linkage item */
+ struct list_head psc_item;
+ /** Pointer to interpreting function */
+ set_interpreter_func psc_interpret;
+ /** Opaq argument to pass to the callback */
+ void *psc_data;
};
struct ptlrpc_bulk_desc;
* added to the state for replay/failover consistency guarantees.
*/
struct ptlrpc_reply_state {
- /** Callback description */
- struct ptlrpc_cb_id rs_cb_id;
- /** Linkage for list of all reply states in a system */
- cfs_list_t rs_list;
- /** Linkage for list of all reply states on same export */
- cfs_list_t rs_exp_list;
- /** Linkage for list of all reply states for same obd */
- cfs_list_t rs_obd_list;
+ /** Callback description */
+ struct ptlrpc_cb_id rs_cb_id;
+ /** Linkage for list of all reply states in a system */
+ struct list_head rs_list;
+ /** Linkage for list of all reply states on same export */
+ struct list_head rs_exp_list;
+ /** Linkage for list of all reply states for same obd */
+ struct list_head rs_obd_list;
#if RS_DEBUG
- cfs_list_t rs_debug_list;
+ struct list_head rs_debug_list;
#endif
- /** A spinlock to protect the reply state flags */
+ /** A spinlock to protect the reply state flags */
spinlock_t rs_lock;
- /** Reply state flags */
+ /** Reply state flags */
unsigned long rs_difficult:1; /* ACK/commit stuff */
unsigned long rs_no_ack:1; /* no ACK, even for
difficult requests */
unsigned long rs_committed:1;/* the transaction was committed
and the rs was dispatched
by ptlrpc_commit_replies */
+ atomic_t rs_refcount; /* number of users */
+ /** Number of locks awaiting client ACK */
+ int rs_nlocks;
+
/** Size of the state */
int rs_size;
/** opcode */
__u64 rs_transno;
/** xid */
__u64 rs_xid;
- struct obd_export *rs_export;
+ struct obd_export *rs_export;
struct ptlrpc_service_part *rs_svcpt;
- /** Lnet metadata handle for the reply */
- lnet_handle_md_t rs_md_h;
- cfs_atomic_t rs_refcount;
-
- /** Context for the sevice thread */
- 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];
+ /** Lnet metadata handle for the reply */
+ lnet_handle_md_t rs_md_h;
+
+ /** Context for the sevice thread */
+ 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 */
+
+ /** 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 */
typedef int (*ptlrpc_interpterer_t)(const struct lu_env *env,
struct ptlrpc_request *req,
void *arg, int rc);
+/** Type of request resend call-back */
+typedef void (*ptlrpc_resend_cb_t)(struct ptlrpc_request *req,
+ void *arg);
/**
* Definition of request pool structure.
*/
struct ptlrpc_request_pool {
/** Locks the list */
- spinlock_t prp_lock;
- /** list of ptlrpc_request structs */
- cfs_list_t prp_req_list;
- /** 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);
+ spinlock_t prp_lock;
+ /** list of ptlrpc_request structs */
+ struct list_head prp_req_list;
+ /** Maximum message size that would fit into a rquest from this pool */
+ int prp_rq_size;
+ /** Function to allocate more requests for this pool */
+ int (*prp_populate)(struct ptlrpc_request_pool *, int);
};
struct lu_context;
struct ldlm_lock;
-/**
- * \defgroup nrs Network Request Scheduler
- * @{
- */
-struct ptlrpc_nrs_policy;
-struct ptlrpc_nrs_resource;
-struct ptlrpc_nrs_request;
-
-/**
- * NRS control operations.
- *
- * These are common for all policies.
- */
-enum ptlrpc_nrs_ctl {
- /**
- * Activate the policy.
- */
- PTLRPC_NRS_CTL_START,
- /**
- * Reserved for multiple primary policies, which may be a possibility
- * in the future.
- */
- PTLRPC_NRS_CTL_STOP,
- /**
- * Recycle resources for inactive policies.
- */
- PTLRPC_NRS_CTL_SHRINK,
- /**
- * Not a valid opcode.
- */
- PTLRPC_NRS_CTL_INVALID,
- /**
- * Policies can start using opcodes from this value and onwards for
- * their own purposes; the assigned value itself is arbitrary.
- */
- PTLRPC_NRS_CTL_1ST_POL_SPEC = 0x20,
-};
-
-/**
- * NRS policy operations.
- *
- * These determine the behaviour of a policy, and are called in response to
- * NRS core events.
- */
-struct ptlrpc_nrs_pol_ops {
- /**
- * Called during policy registration; this operation is optional.
- *
- * \param[in] policy The policy being initialized
- */
- int (*op_policy_init) (struct ptlrpc_nrs_policy *policy);
- /**
- * Called during policy unregistration; this operation is optional.
- *
- * \param[in] policy The policy being unregistered/finalized
- */
- void (*op_policy_fini) (struct ptlrpc_nrs_policy *policy);
- /**
- * Called when activating a policy via lprocfs; policies allocate and
- * initialize their resources here; this operation is optional.
- *
- * \param[in] policy The policy being started
- *
- * \see nrs_policy_start_locked()
- */
- int (*op_policy_start) (struct ptlrpc_nrs_policy *policy);
- /**
- * Called when deactivating a policy via lprocfs; policies deallocate
- * their resources here; this operation is optional
- *
- * \param[in] policy The policy being stopped
- *
- * \see nrs_policy_stop_final()
- */
- void (*op_policy_stop) (struct ptlrpc_nrs_policy *policy);
- /**
- * Used for policy-specific operations; i.e. not generic ones like
- * \e PTLRPC_NRS_CTL_START and \e PTLRPC_NRS_CTL_GET_INFO; analogous
- * to an ioctl; this operation is optional.
- *
- * \param[in] policy The policy carrying out operation \a opc
- * \param[in] opc The command operation being carried out
- * \param[in,out] arg An generic buffer for communication between the
- * user and the control operation
- *
- * \retval -ve error
- * \retval 0 success
- *
- * \see ptlrpc_nrs_policy_control()
- */
- int (*op_policy_ctl) (struct ptlrpc_nrs_policy *policy,
- enum ptlrpc_nrs_ctl opc, void *arg);
-
- /**
- * Called when obtaining references to the resources of the resource
- * hierarchy for a request that has arrived for handling at the PTLRPC
- * service. Policies should return -ve for requests they do not wish
- * to handle. This operation is mandatory.
- *
- * \param[in] policy The policy we're getting resources for.
- * \param[in] nrq The request we are getting resources for.
- * \param[in] parent The parent resource of the resource being
- * requested; set to NULL if none.
- * \param[out] resp The resource is to be returned here; the
- * fallback policy in an NRS head should
- * \e always return a non-NULL pointer value.
- * \param[in] moving_req When set, signifies that this is an attempt
- * to obtain resources for a request being moved
- * to the high-priority NRS head by
- * ldlm_lock_reorder_req().
- * This implies two things:
- * 1. We are under obd_export::exp_rpc_lock and
- * so should not sleep.
- * 2. We should not perform non-idempotent or can
- * skip performing idempotent operations that
- * were carried out when resources were first
- * taken for the request when it was initialized
- * in ptlrpc_nrs_req_initialize().
- *
- * \retval 0, +ve The level of the returned resource in the resource
- * hierarchy; currently only 0 (for a non-leaf resource)
- * and 1 (for a leaf resource) are supported by the
- * framework.
- * \retval -ve error
- *
- * \see ptlrpc_nrs_req_initialize()
- * \see ptlrpc_nrs_hpreq_add_nolock()
- * \see ptlrpc_nrs_req_hp_move()
- */
- int (*op_res_get) (struct ptlrpc_nrs_policy *policy,
- struct ptlrpc_nrs_request *nrq,
- struct ptlrpc_nrs_resource *parent,
- struct ptlrpc_nrs_resource **resp,
- bool moving_req);
- /**
- * Called when releasing references taken for resources in the resource
- * hierarchy for the request; this operation is optional.
- *
- * \param[in] policy The policy the resource belongs to
- * \param[in] res The resource to be freed
- *
- * \see ptlrpc_nrs_req_finalize()
- * \see ptlrpc_nrs_hpreq_add_nolock()
- * \see ptlrpc_nrs_req_hp_move()
- */
- void (*op_res_put) (struct ptlrpc_nrs_policy *policy,
- struct ptlrpc_nrs_resource *res);
-
- /**
- * Obtain a request for handling from the policy via polling; this
- * operation is mandatory.
- *
- * \param[in] policy The policy to poll
- *
- * \retval NULL No erquest available for handling
- * \retval valid-pointer The request polled for handling
- *
- * \see ptlrpc_nrs_req_poll_nolock()
- */
- struct ptlrpc_nrs_request *
- (*op_req_poll) (struct ptlrpc_nrs_policy *policy);
- /**
- * Called when attempting to add a request to a policy for later
- * handling; this operation is mandatory.
- *
- * \param[in] policy The policy on which to enqueue \a nrq
- * \param[in] nrq The request to enqueue
- *
- * \retval 0 success
- * \retval != 0 error
- *
- * \see ptlrpc_nrs_req_add_nolock()
- */
- int (*op_req_enqueue) (struct ptlrpc_nrs_policy *policy,
- struct ptlrpc_nrs_request *nrq);
- /**
- * Removes a request from the policy's set of pending requests. Normally
- * called after a request has been polled successfully from the policy
- * for handling; this operation is mandatory.
- *
- * \param[in] policy The policy the request \a nrq belongs to
- * \param[in] nrq The request to dequeue
- *
- * \see ptlrpc_nrs_req_del_nolock()
- */
- void (*op_req_dequeue) (struct ptlrpc_nrs_policy *policy,
- struct ptlrpc_nrs_request *nrq);
- /**
- * Called before carrying out the request; should not block. Could be
- * used for job/resource control; this operation is optional.
- *
- * \param[in] policy The policy which is starting to handle request
- * \a nrq
- * \param[in] nrq The request
- *
- * \pre spin_is_locked(&svcpt->scp_req_lock)
- *
- * \see ptlrpc_nrs_req_start_nolock()
- */
- void (*op_req_start) (struct ptlrpc_nrs_policy *policy,
- struct ptlrpc_nrs_request *nrq);
- /**
- * Called after the request being carried out. Could be used for
- * job/resource control; this operation is optional.
- *
- * \param[in] policy The policy which is stopping to handle request
- * \a nrq
- * \param[in] nrq The request
- *
- * \pre spin_is_locked(&svcpt->scp_req_lock)
- *
- * \see ptlrpc_nrs_req_stop_nolock()
- */
- void (*op_req_stop) (struct ptlrpc_nrs_policy *policy,
- struct ptlrpc_nrs_request *nrq);
- /**
- * Registers the policy's lprocfs interface with a PTLRPC service.
- *
- * \param[in] svc The service
- *
- * \retval 0 success
- * \retval != 0 error
- */
- int (*op_lprocfs_init) (struct ptlrpc_service *svc);
- /**
- * Unegisters the policy's lprocfs interface with a PTLRPC service.
- *
- * \param[in] svc The service
- */
- void (*op_lprocfs_fini) (struct ptlrpc_service *svc);
-};
-
-/**
- * Policy flags
- */
-enum nrs_policy_flags {
- /**
- * Fallback policy, use this flag only on a single supported policy per
- * service. Do not use this flag for policies registering using
- * ptlrpc_nrs_policy_register() (i.e. ones that are not in
- * \e nrs_pols_builtin).
- */
- PTLRPC_NRS_FL_FALLBACK = (1 << 0),
- /**
- * Start policy immediately after registering.
- */
- PTLRPC_NRS_FL_REG_START = (1 << 1),
- /**
- * This is a polciy registering externally with NRS core, via
- * ptlrpc_nrs_policy_register(), (i.e. one that is not in
- * \e nrs_pols_builtin. Used to avoid ptlrpc_nrs_policy_register()
- * racing with a policy start operation issued by the user via lprocfs.
- */
- PTLRPC_NRS_FL_REG_EXTERN = (1 << 2),
-};
-
-/**
- * NRS queue type.
- *
- * Denotes whether an NRS instance is for handling normal or high-priority
- * RPCs, or whether an operation pertains to one or both of the NRS instances
- * in a service.
- */
-enum ptlrpc_nrs_queue_type {
- PTLRPC_NRS_QUEUE_REG,
- PTLRPC_NRS_QUEUE_HP,
- PTLRPC_NRS_QUEUE_BOTH,
-};
-
-/**
- * NRS head
- *
- * A PTLRPC service has at least one NRS head instance for handling normal
- * priority RPCs, and may optionally have a second NRS head instance for
- * handling high-priority RPCs. Each NRS head maintains a list of available
- * policies, of which one and only one policy is acting as the fallback policy,
- * and optionally a different policy may be acting as the primary policy. For
- * all RPCs handled by this NRS head instance, NRS core will first attempt to
- * enqueue the RPC using the primary policy (if any). The fallback policy is
- * used in the following cases:
- * - when there was no primary policy in the
- * ptlrpc_nrs_pol_state::NRS_POL_STATE_STARTED state at the time the request
- * was initialized.
- * - when the primary policy that was at the
- * ptlrpc_nrs_pol_state::PTLRPC_NRS_POL_STATE_STARTED state at the time the
- * RPC was initialized, denoted it did not wish, or for some other reason was
- * not able to handle the request, by returning a non-valid NRS resource
- * reference.
- * - when the primary policy that was at the
- * ptlrpc_nrs_pol_state::PTLRPC_NRS_POL_STATE_STARTED state at the time the
- * RPC was initialized, fails later during the request enqueueing stage.
- *
- * \see nrs_resource_get_safe()
- * \see nrs_request_enqueue()
- */
-struct ptlrpc_nrs {
- spinlock_t nrs_lock;
- /** XXX Possibly replace svcpt->scp_req_lock with another lock here. */
- /**
- * Linkage into nrs_core_heads_list
- */
- cfs_list_t nrs_heads;
- /**
- * List of registered policies
- */
- cfs_list_t nrs_policy_list;
- /**
- * List of policies with queued requests. Policies that have any
- * outstanding requests are queued here, and this list is queried
- * in a round-robin manner from NRS core when obtaining a request
- * for handling. This ensures that requests from policies that at some
- * point transition away from the
- * ptlrpc_nrs_pol_state::NRS_POL_STATE_STARTED state are drained.
- */
- cfs_list_t nrs_policy_queued;
- /**
- * Service partition for this NRS head
- */
- struct ptlrpc_service_part *nrs_svcpt;
- /**
- * Primary policy, which is the preferred policy for handling RPCs
- */
- struct ptlrpc_nrs_policy *nrs_policy_primary;
- /**
- * Fallback policy, which is the backup policy for handling RPCs
- */
- struct ptlrpc_nrs_policy *nrs_policy_fallback;
- /**
- * This NRS head handles either HP or regular requests
- */
- enum ptlrpc_nrs_queue_type nrs_queue_type;
- /**
- * # queued requests from all policies in this NRS head
- */
- unsigned long nrs_req_queued;
- /**
- * # scheduled requests from all policies in this NRS head
- */
- unsigned long nrs_req_started;
- /**
- * # policies on this NRS
- * TODO: Can we avoid having this?
- */
- unsigned nrs_num_pols;
- /**
- * This NRS head is in progress of starting a policy
- */
- unsigned nrs_policy_starting:1;
- /**
- * In progress of shutting down the whole NRS head; used during
- * unregistration
- */
- unsigned nrs_stopping:1;
-};
-
-#define NRS_POL_NAME_MAX 16
-
-/**
- * NRS policy registering descriptor
- *
- * Is used to hold a description of a policy that can be passed to NRS core in
- * order to register the policy with NRS heads in different PTLRPC services.
- */
-struct ptlrpc_nrs_pol_desc {
- /**
- * Human-readable policy name
- */
- char pd_name[NRS_POL_NAME_MAX];
- /**
- * NRS operations for this policy
- */
- struct ptlrpc_nrs_pol_ops *pd_ops;
- /**
- * Service Compatibility function; this determines whether a policy is
- * adequate for handling RPCs of a particular PTLRPC service.
- *
- * XXX:This should give the same result during policy
- * registration and unregistration, and for all partitions of a
- * service; so the result should not depend on temporal service
- * or other properties, that may influence the result.
- */
- bool (*pd_compat) (struct ptlrpc_service *svc,
- const struct ptlrpc_nrs_pol_desc *desc);
- /**
- * Optionally set for policies that support a single ptlrpc service,
- * i.e. ones that have \a pd_compat set to nrs_policy_compat_one()
- */
- char *pd_compat_svc_name;
- /**
- * Bitmask of nrs_policy_flags
- */
- unsigned pd_flags;
- /**
- * Link into nrs_core::nrs_policies
- */
- cfs_list_t pd_list;
-};
-
-/**
- * NRS policy state
- *
- * Policies transition from one state to the other during their lifetime
- */
-enum ptlrpc_nrs_pol_state {
- /**
- * Not a valid policy state.
- */
- NRS_POL_STATE_INVALID,
- /**
- * For now, this state is used exclusively for policies that register
- * externally to NRS core, i.e. ones that do so via
- * ptlrpc_nrs_policy_register() and are not part of nrs_pols_builtin;
- * it is used to prevent a race condition between the policy registering
- * with more than one service partition while service is operational,
- * and the user starting the policy via lprocfs.
- *
- * \see nrs_pol_make_avail()
- */
- NRS_POL_STATE_UNAVAIL,
- /**
- * Policies are at this state either at the start of their life, or
- * transition here when the user selects a different policy to act
- * as the primary one.
- */
- NRS_POL_STATE_STOPPED,
- /**
- * Policy is progress of stopping
- */
- NRS_POL_STATE_STOPPING,
- /**
- * Policy is in progress of starting
- */
- NRS_POL_STATE_STARTING,
- /**
- * A policy is in this state in two cases:
- * - it is the fallback policy, which is always in this state.
- * - it has been activated by the user; i.e. it is the primary policy,
- */
- NRS_POL_STATE_STARTED,
-};
-
-/**
- * NRS policy information
- *
- * Used for obtaining information for the status of a policy via lprocfs
- */
-struct ptlrpc_nrs_pol_info {
- /**
- * Policy name
- */
- char pi_name[NRS_POL_NAME_MAX];
- /**
- * Current policy state
- */
- enum ptlrpc_nrs_pol_state pi_state;
- /**
- * # RPCs enqueued for later dispatching by the policy
- */
- long pi_req_queued;
- /**
- * # RPCs started for dispatch by the policy
- */
- long pi_req_started;
- /**
- * Is this a fallback policy?
- */
- unsigned pi_fallback:1;
-};
-
-/**
- * NRS policy
- *
- * There is one instance of this for each policy in each NRS head of each
- * PTLRPC service partition.
- */
-struct ptlrpc_nrs_policy {
- /**
- * Linkage into the NRS head's list of policies,
- * ptlrpc_nrs:nrs_policy_list
- */
- cfs_list_t pol_list;
- /**
- * Linkage into the NRS head's list of policies with enqueued
- * requests ptlrpc_nrs:nrs_policy_queued
- */
- cfs_list_t pol_list_queued;
- /**
- * Current state of this policy
- */
- enum ptlrpc_nrs_pol_state pol_state;
- /**
- * Bitmask of nrs_policy_flags
- */
- unsigned pol_flags;
- /**
- * # RPCs enqueued for later dispatching by the policy
- */
- long pol_req_queued;
- /**
- * # RPCs started for dispatch by the policy
- */
- long pol_req_started;
- /**
- * Usage Reference count taken on the policy instance
- */
- long pol_ref;
- /**
- * The NRS head this policy has been created at
- */
- struct ptlrpc_nrs *pol_nrs;
- /**
- * NRS operations for this policy; points to ptlrpc_nrs_pol_desc::pd_ops
- */
- struct ptlrpc_nrs_pol_ops *pol_ops;
- /**
- * Private policy data; varies by policy type
- */
- void *pol_private;
- /**
- * Human-readable policy name; point to ptlrpc_nrs_pol_desc::pd_name
- */
- char *pol_name;
-};
-
-/**
- * NRS resource
- *
- * Resources are embedded into two types of NRS entities:
- * - Inside NRS policies, in the policy's private data in
- * ptlrpc_nrs_policy::pol_private
- * - In objects that act as prime-level scheduling entities in different NRS
- * policies; e.g. on a policy that performs round robin or similar order
- * scheduling across client NIDs, there would be one NRS resource per unique
- * client NID. On a policy which performs round robin scheduling across
- * backend filesystem objects, there would be one resource associated with
- * each of the backend filesystem objects partaking in the scheduling
- * performed by the policy.
- *
- * NRS resources share a parent-child relationship, in which resources embedded
- * in policy instances are the parent entities, with all scheduling entities
- * a policy schedules across being the children, thus forming a simple resource
- * hierarchy. This hierarchy may be extended with one or more levels in the
- * future if the ability to have more than one primary policy is added.
- *
- * Upon request initialization, references to the then active NRS policies are
- * taken and used to later handle the dispatching of the request with one of
- * these policies.
- *
- * \see nrs_resource_get_safe()
- * \see ptlrpc_nrs_req_add()
- */
-struct ptlrpc_nrs_resource {
- /**
- * This NRS resource's parent; is NULL for resources embedded in NRS
- * policy instances; i.e. those are top-level ones.
- */
- struct ptlrpc_nrs_resource *res_parent;
- /**
- * The policy associated with this resource.
- */
- struct ptlrpc_nrs_policy *res_policy;
-};
-
-enum {
- NRS_RES_FALLBACK,
- NRS_RES_PRIMARY,
- NRS_RES_MAX
-};
-
-/* \name fifo
- *
- * FIFO policy
- *
- * This policy is a logical wrapper around previous, non-NRS functionality.
- * It dispatches RPCs in the same order as they arrive from the network. This
- * policy is currently used as the fallback policy, and the only enabled policy
- * on all NRS heads of all PTLRPC service partitions.
- * @{
- */
-
-/**
- * Private data structure for the FIFO policy
- */
-struct nrs_fifo_head {
- /**
- * Resource object for policy instance.
- */
- struct ptlrpc_nrs_resource fh_res;
- /**
- * List of queued requests.
- */
- cfs_list_t fh_list;
- /**
- * For debugging purposes.
- */
- __u64 fh_sequence;
-};
-
-struct nrs_fifo_req {
- /** request header, must be the first member of structure */
- cfs_list_t fr_list;
- __u64 fr_sequence;
-};
-
-/** @} fifo */
-
-/**
- * NRS request
- *
- * Instances of this object exist embedded within ptlrpc_request; the main
- * purpose of this object is to hold references to the request's resources
- * for the lifetime of the request, and to hold properties that policies use
- * use for determining the request's scheduling priority.
- * */
-struct ptlrpc_nrs_request {
- /**
- * The request's resource hierarchy.
- */
- struct ptlrpc_nrs_resource *nr_res_ptrs[NRS_RES_MAX];
- /**
- * Index into ptlrpc_nrs_request::nr_res_ptrs of the resource of the
- * policy that was used to enqueue the request.
- *
- * \see nrs_request_enqueue()
- */
- unsigned nr_res_idx;
- unsigned nr_initialized:1;
- unsigned nr_enqueued:1;
- unsigned nr_dequeued:1;
- unsigned nr_started:1;
- unsigned nr_finalized:1;
- cfs_binheap_node_t nr_node;
-
- /**
- * Policy-specific fields, used for determining a request's scheduling
- * priority, and other supporting functionality.
- */
- union {
- /**
- * Fields for the FIFO policy
- */
- struct nrs_fifo_req fifo;
- } nr_u;
- /**
- * Externally-registering policies may want to use this to allocate
- * their own request properties.
- */
- void *ext;
-};
-
-/** @} nrs */
+#include <lustre_nrs.h>
/**
* Basic request prioritization operations structure.
void (*hpreq_fini)(struct ptlrpc_request *);
};
+struct ptlrpc_cli_req {
+ /** For bulk requests on client only: bulk descriptor */
+ struct ptlrpc_bulk_desc *cr_bulk;
+ /** optional time limit for send attempts */
+ 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;
+ /** time for request really sent out */
+ time_t cr_sent_out;
+ /** when req reply unlink must finish. */
+ time_t cr_reply_deadline;
+ /** when req bulk unlink must finish. */
+ time_t cr_bulk_deadline;
+ /** when req unlink must finish. */
+ time_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 */
+ short cr_rep_ptl;
+ /** request resending number */
+ unsigned int cr_resend_nr;
+ /** What was import generation when this request was sent */
+ int cr_imp_gen;
+ enum lustre_imp_state cr_send_state;
+ /** Per-request waitq introduced by bug 21938 for recovery waiting */
+ wait_queue_head_t cr_set_waitq;
+ /** Link item for request set lists */
+ struct list_head cr_set_chain;
+ /** link to waited ctx */
+ struct list_head cr_ctx_chain;
+
+ /** client's half ctx */
+ struct ptlrpc_cli_ctx *cr_cli_ctx;
+ /** Link back to the request set */
+ struct ptlrpc_request_set *cr_set;
+ /** outgoing request MD handle */
+ lnet_handle_md_t 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;
+ wait_queue_head_t cr_reply_waitq;
+ /** reply callback parameter */
+ struct ptlrpc_cb_id cr_reply_cbid;
+ /** Async completion handler, called when reply is received */
+ ptlrpc_interpterer_t cr_reply_interp;
+ /** Resend handler, called when request is resend to update RPC data */
+ ptlrpc_resend_cb_t cr_resend_cb;
+ /** Async completion context */
+ 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.
+ */
+ void (*cr_commit_cb)(struct ptlrpc_request *);
+ /** Replay callback, called after request is replayed at recovery */
+ void (*cr_replay_cb)(struct ptlrpc_request *);
+};
+
+/** client request member alias */
+/* NB: these alias should NOT be used by any new code, instead they should
+ * be removed step by step to avoid potential abuse */
+#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_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_import_generation rq_cli.cr_imp_gen
+#define rq_send_state rq_cli.cr_send_state
+#define rq_set_chain rq_cli.cr_set_chain
+#define rq_ctx_chain rq_cli.cr_ctx_chain
+#define rq_set rq_cli.cr_set
+#define rq_set_waitq rq_cli.cr_set_waitq
+#define rq_cli_ctx rq_cli.cr_cli_ctx
+#define rq_req_md_h rq_cli.cr_req_md_h
+#define rq_req_cbid rq_cli.cr_req_cbid
+#define rq_reply_md_h rq_cli.cr_reply_md_h
+#define rq_reply_waitq rq_cli.cr_reply_waitq
+#define rq_reply_cbid rq_cli.cr_reply_cbid
+#define rq_interpret_reply rq_cli.cr_reply_interp
+#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
+
+struct ptlrpc_srv_req {
+ /** initial thread servicing this request */
+ struct ptlrpc_thread *sr_svc_thread;
+ /**
+ * Server side list of incoming unserved requests sorted by arrival
+ * time. Traversed from time to time to notice about to expire
+ * requests and sent back "early replies" to clients to let them
+ * know server is alive and well, just very busy to service their
+ * requests in time
+ */
+ struct list_head sr_timed_list;
+ /** server-side per-export list */
+ struct list_head sr_exp_list;
+ /** server-side history, used for debuging purposes. */
+ struct list_head sr_hist_list;
+ /** history sequence # */
+ __u64 sr_hist_seq;
+ /** the index of service's srv_at_array into which request is linked */
+ __u32 sr_at_index;
+ /** authed uid */
+ uid_t sr_auth_uid;
+ /** authed uid mapped to */
+ uid_t sr_auth_mapped_uid;
+ /** RPC is generated from what part of Lustre */
+ enum lustre_sec_part sr_sp_from;
+ /** request session context */
+ struct lu_context sr_ses;
+ /** \addtogroup nrs
+ * @{
+ */
+ /** stub for NRS request */
+ struct ptlrpc_nrs_request sr_nrq;
+ /** @} nrs */
+ /** request arrival time */
+ struct timeval 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, may be vmalloc'd */
+ struct ptlrpc_reply_state *sr_reply_state;
+ /** server-side hp handlers */
+ struct ptlrpc_hpreq_ops *sr_ops;
+ /** incoming request buffer */
+ struct ptlrpc_request_buffer_desc *sr_rqbd;
+};
+
+/** server request member alias */
+/* NB: these alias should NOT be used by any new code, instead they should
+ * be removed step by step to avoid potential abuse */
+#define rq_svc_thread rq_srv.sr_svc_thread
+#define rq_timed_list rq_srv.sr_timed_list
+#define rq_exp_list rq_srv.sr_exp_list
+#define rq_history_list rq_srv.sr_hist_list
+#define rq_history_seq rq_srv.sr_hist_seq
+#define rq_at_index rq_srv.sr_at_index
+#define rq_auth_uid rq_srv.sr_auth_uid
+#define rq_auth_mapped_uid rq_srv.sr_auth_mapped_uid
+#define rq_sp_from rq_srv.sr_sp_from
+#define rq_session rq_srv.sr_ses
+#define rq_nrq rq_srv.sr_nrq
+#define rq_arrival_time rq_srv.sr_arrival_time
+#define rq_reply_state rq_srv.sr_reply_state
+#define rq_svc_ctx rq_srv.sr_svc_ctx
+#define rq_user_desc rq_srv.sr_user_desc
+#define rq_ops rq_srv.sr_ops
+#define rq_rqbd rq_srv.sr_rqbd
+
/**
* Represents remote procedure call.
*
*/
struct ptlrpc_request {
/* Request type: one of PTL_RPC_MSG_* */
- int rq_type;
+ int rq_type;
/** Result of request processing */
- int rq_status;
- /**
- * Linkage item through which this request is included into
- * sending/delayed lists on client and into rqbd list on server
- */
- cfs_list_t rq_list;
- /**
- * Server side list of incoming unserved requests sorted by arrival
- * time. Traversed from time to time to notice about to expire
- * requests and sent back "early replies" to clients to let them
- * know server is alive and well, just very busy to service their
- * requests in time
- */
- cfs_list_t rq_timed_list;
- /** server-side history, used for debuging purposes. */
- cfs_list_t rq_history_list;
- /** server-side per-export list */
- cfs_list_t rq_exp_list;
- /** server-side hp handlers */
- struct ptlrpc_hpreq_ops *rq_ops;
-
- /** initial thread servicing this request */
- struct ptlrpc_thread *rq_svc_thread;
-
- /** history sequence # */
- __u64 rq_history_seq;
- /** \addtogroup nrs
- * @{
+ int rq_status;
+ /**
+ * Linkage item through which this request is included into
+ * sending/delayed lists on client and into rqbd list on server
*/
- /** stub for NRS request */
- struct ptlrpc_nrs_request rq_nrq;
- /** @} nrs */
- /** the index of service's srv_at_array into which request is linked */
- time_t rq_at_index;
- /** Lock to protect request flags and some other important bits, like
- * rq_list
- */
- spinlock_t rq_lock;
- /** client-side flags are serialized by rq_lock */
+ struct list_head rq_list;
+ /** Lock to protect request flags and some other important bits, like
+ * rq_list
+ */
+ spinlock_t rq_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,
/**
rq_replay:1,
rq_no_resend:1, rq_waiting:1, rq_receiving_reply:1,
rq_no_delay:1, rq_net_err:1, rq_wait_ctx:1,
- rq_early:1, rq_must_unlink:1,
- rq_memalloc:1, /* req originated from "kswapd" */
- /* server-side flags */
- rq_packed_final:1, /* packed final reply */
- rq_hp:1, /* high priority RPC */
- rq_at_linked:1, /* link into service's srv_at_array */
- rq_reply_truncate:1,
- rq_committed:1,
- /* whether the "rq_set" is a valid one */
- rq_invalid_rqset:1,
+ rq_early:1,
+ rq_req_unlinked:1, /* unlinked request buffer from lnet */
+ rq_reply_unlinked:1, /* unlinked reply buffer from lnet */
+ rq_memalloc:1, /* req originated from "kswapd" */
+ rq_committed:1,
+ rq_reply_truncated:1,
+ /** whether the "rq_set" is a valid one */
+ rq_invalid_rqset:1,
rq_generation_set:1,
- /* do not resend request on -EINPROGRESS */
+ /** do not resend request on -EINPROGRESS */
rq_no_retry_einprogress:1,
/* allow the req to be sent if the import is in recovery
* status */
- rq_allow_replay:1;
-
- unsigned int rq_nr_resend;
-
- enum rq_phase rq_phase; /* one of RQ_PHASE_* */
- enum rq_phase rq_next_phase; /* one of RQ_PHASE_* to be used next */
- cfs_atomic_t rq_refcount;/* client-side refcount for SENT race,
- server-side refcounf for multiple replies */
+ rq_allow_replay:1,
+ /* bulk request, sent to server, but uncommitted */
+ rq_unstable:1,
+ rq_allow_intr:1;
+ /** @} */
- /** Portal to which this request would be sent */
- short rq_request_portal; /* XXX FIXME bug 249 */
- /** Portal where to wait for reply and where reply would be sent */
- short rq_reply_portal; /* XXX FIXME bug 249 */
+ /** server-side flags @{ */
+ unsigned int
+ rq_hp:1, /**< high priority RPC */
+ rq_at_linked:1, /**< link into service's srv_at_array */
+ rq_packed_final:1; /**< packed final reply */
+ /** @} */
+ /** one of RQ_PHASE_* */
+ enum rq_phase rq_phase;
+ /** one of RQ_PHASE_* to be used next */
+ enum rq_phase rq_next_phase;
+ /**
+ * client-side refcount for SENT race, server-side refcounf
+ * for multiple replies
+ */
+ atomic_t rq_refcount;
/**
* client-side:
* !rq_truncate : # reply bytes actually received,
int rq_reqlen;
/** Reply length */
int rq_replen;
+ /** Pool if request is from preallocated list */
+ struct ptlrpc_request_pool *rq_pool;
/** Request message - what client sent */
struct lustre_msg *rq_reqmsg;
/** Reply message - server response */
/** Transaction number */
__u64 rq_transno;
/** xid */
- __u64 rq_xid;
- /**
- * List item to for replay list. Not yet commited requests get linked
- * there.
- * Also see \a rq_replay comment above.
- */
- cfs_list_t rq_replay_list;
-
- /**
- * security and encryption data
- * @{ */
- struct ptlrpc_cli_ctx *rq_cli_ctx; /**< client's half ctx */
- struct ptlrpc_svc_ctx *rq_svc_ctx; /**< server's half ctx */
- cfs_list_t rq_ctx_chain; /**< link to waited ctx */
-
- struct sptlrpc_flavor rq_flvr; /**< for client & server */
- enum lustre_sec_part rq_sp_from;
+ __u64 rq_xid;
+ /** bulk match bits */
+ __u64 rq_mbits;
+ /**
+ * 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
+ */
+ struct list_head rq_replay_list;
+ /** non-shared members for client & server request*/
+ union {
+ struct ptlrpc_cli_req rq_cli;
+ struct ptlrpc_srv_req rq_srv;
+ };
+ /**
+ * security and encryption data
+ * @{ */
+ /** description of flavors for client & server */
+ struct sptlrpc_flavor rq_flvr;
/* client/server security flags */
unsigned int
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 */
rq_pack_bulk:1,
/* doesn't expect reply FIXME */
rq_no_reply:1,
- rq_pill_init:1; /* pill initialized */
+ rq_pill_init:1, /* pill initialized */
+ rq_srv_req:1; /* server request */
- uid_t rq_auth_uid; /* authed uid */
- uid_t rq_auth_mapped_uid; /* authed uid mapped to */
- /* (server side), pointed directly into req buffer */
- struct ptlrpc_user_desc *rq_user_desc;
-
- /* 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_clrbuf; /* only in priv mode */
+ /** various buffer pointers */
+ 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 */
int rq_reqdata_len; /* req wrapper msg len */
int rq_repbuf_len; /* rep buffer len */
int rq_clrdata_len; /* only in priv mode */
/** 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 */
- __u32 rq_req_swab_mask;
- __u32 rq_rep_swab_mask;
-
- /** What was import generation when this request was sent */
- int rq_import_generation;
- enum lustre_imp_state rq_send_state;
-
- /** how many early replies (for stats) */
- int rq_early_count;
-
- /** client+server request */
- lnet_handle_md_t rq_req_md_h;
- struct ptlrpc_cb_id rq_req_cbid;
- /** optional time limit for send attempts */
- cfs_duration_t rq_delay_limit;
- /** time request was first queued */
- cfs_time_t rq_queued_time;
-
- /* server-side... */
- /** request arrival time */
- struct timeval rq_arrival_time;
- /** separated reply state */
- struct ptlrpc_reply_state *rq_reply_state;
- /** incoming request buffer */
- struct ptlrpc_request_buffer_desc *rq_rqbd;
-
- /** client-only incoming reply */
- lnet_handle_md_t rq_reply_md_h;
- cfs_waitq_t rq_reply_waitq;
- struct ptlrpc_cb_id rq_reply_cbid;
-
- /** our LNet NID */
- lnet_nid_t rq_self;
- /** Peer description (the other side) */
- lnet_process_id_t rq_peer;
- /** Server-side, export on which request was received */
- struct obd_export *rq_export;
- /** Client side, import where request is being sent */
- struct obd_import *rq_import;
-
- /** Replay callback, called after request is replayed at recovery */
- void (*rq_replay_cb)(struct ptlrpc_request *);
- /**
- * Commit callback, called when request is committed and about to be
- * freed.
- */
- void (*rq_commit_cb)(struct ptlrpc_request *);
- /** Opaq data for replay and commit callbacks. */
- void *rq_cb_data;
-
- /** For bulk requests on client only: bulk descriptor */
- struct ptlrpc_bulk_desc *rq_bulk;
-
- /** client outgoing req */
- /**
- * when request/reply sent (secs), or time when request should be sent
- */
- time_t rq_sent;
- /** time for request really sent out */
- time_t rq_real_sent;
-
- /** when request must finish. volatile
- * so that servers' early reply updates to the deadline aren't
- * kept in per-cpu cache */
- volatile time_t rq_deadline;
- /** when req reply unlink must finish. */
- time_t rq_reply_deadline;
- /** when req bulk unlink must finish. */
- time_t rq_bulk_deadline;
- /**
- * service time estimate (secs)
- * If the requestsis not served by this time, it is marked as timed out.
- */
- int rq_timeout;
+ unsigned int rq_reply_off;
+ /** @} */
- /** Multi-rpc bits */
- /** Per-request waitq introduced by bug 21938 for recovery waiting */
- cfs_waitq_t rq_set_waitq;
- /** Link item for request set lists */
- cfs_list_t rq_set_chain;
- /** Link back to the request set */
- struct ptlrpc_request_set *rq_set;
- /** Async completion handler, called when reply is received */
- ptlrpc_interpterer_t rq_interpret_reply;
- /** Async completion context */
- union ptlrpc_async_args rq_async_args;
-
- /** Pool if request is from preallocated list */
- struct ptlrpc_request_pool *rq_pool;
-
- struct lu_context rq_session;
- struct lu_context rq_recov_session;
-
- /** request format description */
- struct req_capsule rq_pill;
+ /** Fields that help to see if request and reply were swabbed or not */
+ __u32 rq_req_swab_mask;
+ __u32 rq_rep_swab_mask;
+
+ /** how many early replies (for stats) */
+ int rq_early_count;
+ /** Server-side, export on which request was received */
+ struct obd_export *rq_export;
+ /** import where request is being sent */
+ struct obd_import *rq_import;
+ /** our LNet NID */
+ lnet_nid_t rq_self;
+ /** Peer description (the other side) */
+ lnet_process_id_t rq_peer;
+ /** Descriptor for the NID from which the peer sent the request. */
+ lnet_process_id_t rq_source;
+ /**
+ * service time estimate (secs)
+ * If the request is not served by this time, it is marked as timed out.
+ */
+ int rq_timeout;
+ /**
+ * when request/reply sent (secs), or time when request should be sent
+ */
+ time_t rq_sent;
+ /** when request must finish. */
+ time_t rq_deadline;
+ /** request format description */
+ struct req_capsule rq_pill;
};
/**
/** \addtogroup nrs
* @{
*/
-int ptlrpc_nrs_policy_register(struct ptlrpc_nrs_pol_desc *desc);
-int ptlrpc_nrs_policy_unregister(struct ptlrpc_nrs_pol_desc *desc);
+int ptlrpc_nrs_policy_register(struct ptlrpc_nrs_pol_conf *conf);
+int ptlrpc_nrs_policy_unregister(struct ptlrpc_nrs_pol_conf *conf);
void ptlrpc_nrs_req_hp_move(struct ptlrpc_request *req);
void nrs_policy_get_info_locked(struct ptlrpc_nrs_policy *policy,
struct ptlrpc_nrs_pol_info *info);
*
* For a reliable result, this should be checked under svcpt->scp_req lock.
*/
-static inline bool
-ptlrpc_nrs_req_can_move(struct ptlrpc_request *req)
+static inline bool ptlrpc_nrs_req_can_move(struct ptlrpc_request *req)
{
struct ptlrpc_nrs_request *nrq = &req->rq_nrq;
/**
* Returns 1 if request buffer at offset \a index was already swabbed
*/
-static inline int lustre_req_swabbed(struct ptlrpc_request *req, int index)
+static inline int lustre_req_swabbed(struct ptlrpc_request *req, size_t index)
{
LASSERT(index < sizeof(req->rq_req_swab_mask) * 8);
return req->rq_req_swab_mask & (1 << index);
/**
* Returns 1 if request reply buffer at offset \a index was already swabbed
*/
-static inline int lustre_rep_swabbed(struct ptlrpc_request *req, int index)
+static inline int lustre_rep_swabbed(struct ptlrpc_request *req, size_t index)
{
LASSERT(index < sizeof(req->rq_rep_swab_mask) * 8);
return req->rq_rep_swab_mask & (1 << index);
/**
* Mark request buffer at offset \a index that it was already swabbed
*/
-static inline void lustre_set_req_swabbed(struct ptlrpc_request *req, int index)
+static inline void lustre_set_req_swabbed(struct ptlrpc_request *req,
+ size_t index)
{
LASSERT(index < sizeof(req->rq_req_swab_mask) * 8);
LASSERT((req->rq_req_swab_mask & (1 << index)) == 0);
/**
* Mark request reply buffer at offset \a index that it was already swabbed
*/
-static inline void lustre_set_rep_swabbed(struct ptlrpc_request *req, int index)
+static inline void lustre_set_rep_swabbed(struct ptlrpc_request *req,
+ size_t index)
{
LASSERT(index < sizeof(req->rq_rep_swab_mask) * 8);
LASSERT((req->rq_rep_swab_mask & (1 << index)) == 0);
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?";
+ }
}
/**
/**
* Debugging functions and helpers to print request structure into debug log
* @{
- */
+ */
/* Spare the preprocessor, spoil the bugs. */
#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 { \
* Structure that defines a single page of a bulk transfer
*/
struct ptlrpc_bulk_page {
- /** Linkage to list of pages in a bulk */
- cfs_list_t bp_link;
- /**
- * Number of bytes in a page to transfer starting from \a bp_pageoffset
- */
- int bp_buflen;
- /** offset within a page */
- int bp_pageoffset;
- /** The page itself */
- struct page *bp_page;
+ /** Linkage to list of pages in a bulk */
+ struct list_head bp_link;
+ /**
+ * Number of bytes in a page to transfer starting from \a bp_pageoffset
+ */
+ int bp_buflen;
+ /** offset within a page */
+ int bp_pageoffset;
+ /** The page itself */
+ 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;
- cfs_waitq_t bd_waitq; /* server side only WQ */
+ 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 */
/** array of associated MDs */
lnet_handle_md_t bd_mds[PTLRPC_BULK_OPS_COUNT];
-#if defined(__KERNEL__)
- /*
- * 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];
-#else
- lnet_md_iovec_t bd_iov[0];
-#endif
};
+#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,
* Definition of server service thread structure
*/
struct ptlrpc_thread {
- /**
- * List of active threads in svc->srv_threads
- */
- cfs_list_t 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
- */
+ /**
+ * List of active threads in svc->srv_threads
+ */
+ struct list_head t_link;
+ /**
+ * 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;
- cfs_waitq_t t_ctl_waitq;
+ wait_queue_head_t t_ctl_waitq;
struct lu_env *t_env;
char t_name[PTLRPC_THR_NAME_LEN];
};
* More than one request can fit into the buffer.
*/
struct ptlrpc_request_buffer_desc {
- /** Link item for rqbds on a service */
- cfs_list_t rqbd_list;
- /** History of requests for this buffer */
- cfs_list_t rqbd_reqs;
- /** 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;
- int rqbd_refcount;
- /** The buffer itself */
- char *rqbd_buffer;
- struct ptlrpc_cb_id rqbd_cbid;
- /**
- * This "embedded" request structure is only used for the
- * last request to fit into the buffer
- */
- struct ptlrpc_request rqbd_req;
+ /** Link item for rqbds on a service */
+ struct list_head rqbd_list;
+ /** History of requests for this buffer */
+ struct list_head rqbd_reqs;
+ /** 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;
+ int rqbd_refcount;
+ /** The buffer itself */
+ char *rqbd_buffer;
+ struct ptlrpc_cb_id rqbd_cbid;
+ /**
+ * This "embedded" request structure is only used for the
+ * last request to fit into the buffer
+ */
+ struct ptlrpc_request rqbd_req;
};
typedef int (*svc_handler_t)(struct ptlrpc_request *req);
struct ptlrpc_service {
/** serialize /proc operations */
spinlock_t srv_lock;
- /** most often accessed fields */
- /** chain thru all services */
- cfs_list_t srv_list;
+ /** most often accessed fields */
+ /** chain thru all services */
+ struct list_head srv_list;
/** service operations table */
struct ptlrpc_service_ops srv_ops;
/** only statically allocated strings here; we don't clean them */
/** only statically allocated strings here; we don't clean them */
char *srv_thread_name;
/** service thread list */
- cfs_list_t srv_threads;
+ struct list_head srv_threads;
/** threads # should be created for each partition on initializing */
int srv_nthrs_cpt_init;
/** limit of threads number for each partition */
int srv_nthrs_cpt_limit;
/** Root of /proc dir tree for this service */
- cfs_proc_dir_entry_t *srv_procroot;
+ struct proc_dir_entry *srv_procroot;
/** Pointer to statistic data for this service */
struct lprocfs_stats *srv_stats;
/** # hp per lp reqs to handle */
/** # running threads */
int scp_nthrs_running;
/** service threads list */
- cfs_list_t scp_threads;
+ struct list_head scp_threads;
/**
* serialize the following fields, used for protecting
/** # incoming reqs */
int scp_nreqs_incoming;
/** request buffers to be reposted */
- cfs_list_t scp_rqbd_idle;
+ struct list_head scp_rqbd_idle;
/** req buffers receiving */
- cfs_list_t scp_rqbd_posted;
+ struct list_head scp_rqbd_posted;
/** incoming reqs */
- cfs_list_t scp_req_incoming;
+ struct list_head scp_req_incoming;
/** timeout before re-posting reqs, in tick */
cfs_duration_t scp_rqbd_timeout;
/**
* all threads sleep on this. This wait-queue is signalled when new
* incoming request arrives and when difficult reply has to be handled.
*/
- cfs_waitq_t scp_waitq;
+ wait_queue_head_t scp_waitq;
/** request history */
- cfs_list_t scp_hist_reqs;
+ struct list_head scp_hist_reqs;
/** request buffer history */
- cfs_list_t scp_hist_rqbds;
+ struct list_head scp_hist_rqbds;
/** # request buffers in history */
int scp_hist_nrqbds;
/** sequence number for request */
/** reqs waiting for replies */
struct ptlrpc_at_array scp_at_array;
/** early reply timer */
- cfs_timer_t scp_at_timer;
+ struct timer_list scp_at_timer;
/** debug */
cfs_time_t scp_at_checktime;
/** check early replies */
*/
spinlock_t scp_rep_lock __cfs_cacheline_aligned;
/** all the active replies */
- cfs_list_t scp_rep_active;
-#ifndef __KERNEL__
- /** replies waiting for service */
- cfs_list_t scp_rep_queue;
-#endif
+ struct list_head scp_rep_active;
/** List of free reply_states */
- cfs_list_t scp_rep_idle;
+ struct list_head scp_rep_idle;
/** waitq to run, when adding stuff to srv_free_rs_list */
- cfs_waitq_t scp_rep_waitq;
+ wait_queue_head_t scp_rep_waitq;
/** # 'difficult' replies */
- cfs_atomic_t scp_nreps_difficult;
+ atomic_t scp_nreps_difficult;
};
#define ptlrpc_service_for_each_part(part, i, svc) \
* Stop completion.
*/
struct completion pc_finishing;
- /**
- * Thread requests set.
- */
- struct ptlrpc_request_set *pc_set;
- /**
- * Thread name used in cfs_daemonize()
- */
- char pc_name[16];
- /**
- * Environment for request interpreters to run in.
- */
- struct lu_env pc_env;
+ /**
+ * Thread requests set.
+ */
+ struct ptlrpc_request_set *pc_set;
+ /**
+ * Thread name used in kthread_run()
+ */
+ 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;
-#ifndef __KERNEL__
- /**
- * Async rpcs flag to make sure that ptlrpcd_check() is called only
- * once.
- */
- int pc_recurred;
- /**
- * Currently not used.
- */
- void *pc_callback;
- /**
- * User-space async rpcs callback.
- */
- void *pc_wait_callback;
- /**
- * User-space check idle rpcs callback.
- */
- void *pc_idle_callback;
-#endif
+ 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,
};
/**
* \addtogroup nrs
* @{
*
- * Service compatibility function; policy is compatible with all services.
+ * Service compatibility function; the policy is compatible with all services.
*
* \param[in] svc The service the policy is attempting to register with.
* \param[in] desc The policy descriptor
*
- * \retval true The policy is compatible with the NRS head
+ * \retval true The policy is compatible with the service
*
* \see ptlrpc_nrs_pol_desc::pd_compat()
*/
-static inline bool
-nrs_policy_compat_all(struct ptlrpc_service *svc,
- const struct ptlrpc_nrs_pol_desc *desc)
+static inline bool nrs_policy_compat_all(const struct ptlrpc_service *svc,
+ const struct ptlrpc_nrs_pol_desc *desc)
{
return true;
}
/**
- * Service compatibility function; policy is compatible with only a specific
+ * Service compatibility function; the policy is compatible with only a specific
* service which is identified by its human-readable name at
* ptlrpc_service::srv_name.
*
* \param[in] svc The service the policy is attempting to register with.
* \param[in] desc The policy descriptor
*
- * \retval false The policy is not compatible with the NRS head
- * \retval true The policy is compatible with the NRS head
+ * \retval false The policy is not compatible with the service
+ * \retval true The policy is compatible with the service
*
* \see ptlrpc_nrs_pol_desc::pd_compat()
*/
-static inline bool
-nrs_policy_compat_one(struct ptlrpc_service *svc,
- const struct ptlrpc_nrs_pol_desc *desc)
+static inline bool nrs_policy_compat_one(const struct ptlrpc_service *svc,
+ const struct ptlrpc_nrs_pol_desc *desc)
{
LASSERT(desc->pd_compat_svc_name != NULL);
return strcmp(svc->srv_name, desc->pd_compat_svc_name) == 0;
*/
#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 > cfs_time_current_sec())
+ return 1;
- if (!desc)
- return 0;
+ if (!desc)
+ return 0;
spin_lock(&desc->bd_lock);
rc = desc->bd_md_count;
int ptlrpc_reply(struct ptlrpc_request *req);
int ptlrpc_send_error(struct ptlrpc_request *req, int difficult);
int ptlrpc_error(struct ptlrpc_request *req);
-void ptlrpc_resend_req(struct ptlrpc_request *request);
int ptlrpc_at_get_net_latency(struct ptlrpc_request *req);
int ptl_send_rpc(struct ptlrpc_request *request, int noreply);
int ptlrpc_register_rqbd(struct ptlrpc_request_buffer_desc *rqbd);
* request queues, request management, etc.
* @{
*/
+void ptlrpc_request_committed(struct ptlrpc_request *req, int force);
+
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);
-int ptlrpc_unregister_reply(struct ptlrpc_request *req, int async);
void ptlrpc_restart_req(struct ptlrpc_request *req);
void ptlrpc_abort_inflight(struct obd_import *imp);
void ptlrpc_cleanup_imp(struct obd_import *imp);
void *arg);
int ptlrpc_set_add_cb(struct ptlrpc_request_set *set,
set_interpreter_func fn, void *data);
-int ptlrpc_set_next_timeout(struct ptlrpc_request_set *);
int ptlrpc_check_set(const struct lu_env *env, struct ptlrpc_request_set *set);
int ptlrpc_set_wait(struct ptlrpc_request_set *);
-int ptlrpc_expired_set(void *data);
-void ptlrpc_interrupted_set(void *data);
void ptlrpc_mark_interrupted(struct ptlrpc_request *req);
void ptlrpc_set_destroy(struct ptlrpc_request_set *);
void ptlrpc_set_add_req(struct ptlrpc_request_set *, struct ptlrpc_request *);
-void ptlrpc_set_add_new_req(struct ptlrpcd_ctl *pc,
- struct ptlrpc_request *req);
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,
- cfs_page_t *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,
- cfs_page_t *page, int pageoffset,
+ struct page *page, int pageoffset,
int len)
{
__ptlrpc_prep_bulk_page(desc, page, pageoffset, len, 1);
}
static inline void ptlrpc_prep_bulk_page_nopin(struct ptlrpc_bulk_desc *desc,
- cfs_page_t *page, int pageoffset,
+ 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_daemonize(char *name);
int ptlrpc_service_health_check(struct ptlrpc_service *);
void ptlrpc_server_drop_request(struct ptlrpc_request *req);
+void ptlrpc_request_change_export(struct ptlrpc_request *req,
+ struct obd_export *export);
+void ptlrpc_update_export_timer(struct obd_export *exp, long extra_delay);
-#ifdef __KERNEL__
int ptlrpc_hr_init(void);
void ptlrpc_hr_fini(void);
-#else
-# define ptlrpc_hr_init() (0)
-# define ptlrpc_hr_fini() do {} while(0)
-#endif
/** @} */
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);
/** @} */
/**
- * ptlrpc msg buffer and swab interface
+ * ptlrpc msg buffer and swab interface
*
* @{
*/
int ptlrpc_buf_need_swab(struct ptlrpc_request *req, const int inout,
- int index);
+ __u32 index);
void ptlrpc_buf_set_swabbed(struct ptlrpc_request *req, const int inout,
- int index);
+ __u32 index);
int ptlrpc_unpack_rep_msg(struct ptlrpc_request *req, int len);
int ptlrpc_unpack_req_msg(struct ptlrpc_request *req, int len);
unsigned int newlen, int move_data);
void lustre_free_reply_state(struct ptlrpc_reply_state *rs);
int __lustre_unpack_msg(struct lustre_msg *m, int len);
-int lustre_msg_hdr_size(__u32 magic, int count);
-int lustre_msg_size(__u32 magic, int count, __u32 *lengths);
-int lustre_msg_size_v2(int count, __u32 *lengths);
-int lustre_packed_msg_size(struct lustre_msg *msg);
-int lustre_msg_early_size(void);
-void *lustre_msg_buf_v2(struct lustre_msg_v2 *m, int n, int min_size);
-void *lustre_msg_buf(struct lustre_msg *m, int n, int minlen);
-int lustre_msg_buflen(struct lustre_msg *m, int n);
-void lustre_msg_set_buflen(struct lustre_msg *m, int n, int len);
-int lustre_msg_bufcount(struct lustre_msg *m);
-char *lustre_msg_string(struct lustre_msg *m, int n, int max_len);
+__u32 lustre_msg_hdr_size(__u32 magic, __u32 count);
+__u32 lustre_msg_size(__u32 magic, int count, __u32 *lengths);
+__u32 lustre_msg_size_v2(int count, __u32 *lengths);
+__u32 lustre_packed_msg_size(struct lustre_msg *msg);
+__u32 lustre_msg_early_size(void);
+void *lustre_msg_buf_v2(struct lustre_msg_v2 *m, __u32 n, __u32 min_size);
+void *lustre_msg_buf(struct lustre_msg *m, __u32 n, __u32 minlen);
+__u32 lustre_msg_buflen(struct lustre_msg *m, __u32 n);
+void lustre_msg_set_buflen(struct lustre_msg *m, __u32 n, __u32 len);
+__u32 lustre_msg_bufcount(struct lustre_msg *m);
+char *lustre_msg_string(struct lustre_msg *m, __u32 n, __u32 max_len);
__u32 lustre_msghdr_get_flags(struct lustre_msg *msg);
void lustre_msghdr_set_flags(struct lustre_msg *msg, __u32 flags);
__u32 lustre_msg_get_flags(struct lustre_msg *msg);
-void lustre_msg_add_flags(struct lustre_msg *msg, int flags);
-void lustre_msg_set_flags(struct lustre_msg *msg, int flags);
-void lustre_msg_clear_flags(struct lustre_msg *msg, int flags);
+void lustre_msg_add_flags(struct lustre_msg *msg, __u32 flags);
+void lustre_msg_set_flags(struct lustre_msg *msg, __u32 flags);
+void lustre_msg_clear_flags(struct lustre_msg *msg, __u32 flags);
__u32 lustre_msg_get_op_flags(struct lustre_msg *msg);
-void lustre_msg_add_op_flags(struct lustre_msg *msg, int flags);
-void lustre_msg_set_op_flags(struct lustre_msg *msg, int flags);
+void lustre_msg_add_op_flags(struct lustre_msg *msg, __u32 flags);
struct lustre_handle *lustre_msg_get_handle(struct lustre_msg *msg);
__u32 lustre_msg_get_type(struct lustre_msg *msg);
__u32 lustre_msg_get_version(struct lustre_msg *msg);
-void lustre_msg_add_version(struct lustre_msg *msg, int version);
+void lustre_msg_add_version(struct lustre_msg *msg, __u32 version);
__u32 lustre_msg_get_opc(struct lustre_msg *msg);
__u64 lustre_msg_get_last_xid(struct lustre_msg *msg);
+__u16 lustre_msg_get_tag(struct lustre_msg *msg);
__u64 lustre_msg_get_last_committed(struct lustre_msg *msg);
__u64 *lustre_msg_get_versions(struct lustre_msg *msg);
__u64 lustre_msg_get_transno(struct lustre_msg *msg);
void lustre_msg_set_limit(struct lustre_msg *msg, __u64 limit);
int lustre_msg_get_status(struct lustre_msg *msg);
__u32 lustre_msg_get_conn_cnt(struct lustre_msg *msg);
-int lustre_msg_is_v1(struct lustre_msg *msg);
__u32 lustre_msg_get_magic(struct lustre_msg *msg);
__u32 lustre_msg_get_timeout(struct lustre_msg *msg);
__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, 50, 0)
-__u32 lustre_msg_calc_cksum(struct lustre_msg *msg, int compat18);
-#else
-# warning "remove checksum compatibility support for b1_8"
+__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_last_xid(struct lustre_msg *msg, __u64 last_xid);
+void lustre_msg_set_tag(struct lustre_msg *msg, __u16 tag);
void lustre_msg_set_last_committed(struct lustre_msg *msg,__u64 last_committed);
void lustre_msg_set_versions(struct lustre_msg *msg, __u64 *versions);
void lustre_msg_set_transno(struct lustre_msg *msg, __u64 transno);
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,
req->rq_replen = lustre_shrink_msg(req->rq_repmsg, segment,
newlen, move_data);
}
+
+#ifdef LUSTRE_TRANSLATE_ERRNOS
+
+static inline int ptlrpc_status_hton(int h)
+{
+ /*
+ * Positive errnos must be network errnos, such as LUSTRE_EDEADLK,
+ * ELDLM_LOCK_ABORTED, etc.
+ */
+ if (h < 0)
+ return -lustre_errno_hton(-h);
+ else
+ return h;
+}
+
+static inline int ptlrpc_status_ntoh(int n)
+{
+ /*
+ * See the comment in ptlrpc_status_hton().
+ */
+ if (n < 0)
+ return -lustre_errno_ntoh(-n);
+ else
+ return n;
+}
+
+#else
+
+#define ptlrpc_status_hton(h) (h)
+#define ptlrpc_status_ntoh(n) (n)
+
+#endif
/** @} */
/** Change request phase of \a req to \a new_phase */
static inline void
ptlrpc_rqphase_move(struct ptlrpc_request *req, enum rq_phase new_phase)
{
- if (req->rq_phase == new_phase)
- return;
-
- if (new_phase == RQ_PHASE_UNREGISTERING) {
- req->rq_next_phase = req->rq_phase;
- if (req->rq_import)
- cfs_atomic_inc(&req->rq_import->imp_unregistering);
- }
+ if (req->rq_phase == new_phase)
+ return;
+
+ 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_import)
- cfs_atomic_dec(&req->rq_import->imp_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);
+ }
- DEBUG_REQ(D_INFO, req, "move req \"%s\" -> \"%s\"",
- ptlrpc_rqphase2str(req), ptlrpc_phase2str(new_phase));
+ DEBUG_REQ(D_INFO, req, "move req \"%s\" -> \"%s\"",
+ ptlrpc_rqphase2str(req), ptlrpc_phase2str(new_phase));
- req->rq_phase = new_phase;
+ req->rq_phase = new_phase;
}
/**
- * Returns true if request \a req got early reply and hard deadline is not met
+ * Returns true if request \a req got early reply and hard deadline is not met
*/
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 > cfs_time_current_sec())
+ 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 > cfs_time_current_sec())
+ 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 > cfs_time_current_sec()) {
+ spin_unlock(&req->rq_lock);
+ return 1;
+ }
+ if (req->rq_req_deadline > cfs_time_current_sec()) {
spin_unlock(&req->rq_lock);
return 1;
}
- rc = req->rq_receiving_reply || req->rq_must_unlink;
+
+ rc = !req->rq_req_unlinked || !req->rq_reply_unlinked ||
+ req->rq_receiving_reply;
spin_unlock(&req->rq_lock);
return rc;
}
static inline void
ptlrpc_client_wake_req(struct ptlrpc_request *req)
{
- if (req->rq_set == NULL)
- cfs_waitq_signal(&req->rq_reply_waitq);
- else
- cfs_waitq_signal(&req->rq_set->set_waitq);
+ if (req->rq_set == NULL)
+ wake_up(&req->rq_reply_waitq);
+ else
+ wake_up(&req->rq_set->set_waitq);
}
static inline void
ptlrpc_rs_addref(struct ptlrpc_reply_state *rs)
{
- LASSERT(cfs_atomic_read(&rs->rs_refcount) > 0);
- cfs_atomic_inc(&rs->rs_refcount);
+ LASSERT(atomic_read(&rs->rs_refcount) > 0);
+ atomic_inc(&rs->rs_refcount);
}
static inline void
ptlrpc_rs_decref(struct ptlrpc_reply_state *rs)
{
- LASSERT(cfs_atomic_read(&rs->rs_refcount) > 0);
- if (cfs_atomic_dec_and_test(&rs->rs_refcount))
- lustre_free_reply_state(rs);
+ LASSERT(atomic_read(&rs->rs_refcount) > 0);
+ if (atomic_dec_and_test(&rs->rs_refcount))
+ lustre_free_reply_state(rs);
}
/* Should only be called once per req */
* Pinger API (client side only)
* @{
*/
-extern int suppress_pings;
enum timeout_event {
TIMEOUT_GRANT = 1
};
int ptlrpc_pinger_add_import(struct obd_import *imp);
int ptlrpc_pinger_del_import(struct obd_import *imp);
int ptlrpc_add_timeout_client(int time, enum timeout_event event,
- timeout_cb_t cb, void *data,
- cfs_list_t *obd_list);
-int ptlrpc_del_timeout_client(cfs_list_t *obd_list,
+ timeout_cb_t cb, void *data,
+ struct list_head *obd_list);
+int ptlrpc_del_timeout_client(struct list_head *obd_list,
enum timeout_event event);
struct ptlrpc_request * ptlrpc_prep_ping(struct obd_import *imp);
int ptlrpc_obd_ping(struct obd_device *obd);
-cfs_time_t ptlrpc_suspend_wakeup_time(void);
-#ifdef __KERNEL__
void ping_evictor_start(void);
void ping_evictor_stop(void);
-#else
-#define ping_evictor_start() do {} while (0)
-#define ping_evictor_stop() do {} while (0)
-#endif
-int ptlrpc_check_and_wait_suspend(struct ptlrpc_request *req);
+void ptlrpc_pinger_ir_up(void);
+void ptlrpc_pinger_ir_down(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;
+int ptlrpc_pinger_suppress_pings(void);
/* 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);
-#ifdef LPROCFS
+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);
void ptlrpc_lprocfs_brw(struct ptlrpc_request *req, int bytes);
int llog_origin_handle_next_block(struct ptlrpc_request *req);
int llog_origin_handle_read_header(struct ptlrpc_request *req);
int llog_origin_handle_close(struct ptlrpc_request *req);
-int llog_origin_handle_cancel(struct ptlrpc_request *req);
/* ptlrpc/llog_client.c */
extern struct llog_operations llog_client_ops;
-
/** @} net */
#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff