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Include headers explicitly that were previously included from lustre_net.h.
[fs/lustre-release.git] / lustre / ptlrpc / niobuf.c
index 7f68332..26eb727 100644 (file)
  *
  */
 
-#define EXPORT_SYMTAB
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-
 #define DEBUG_SUBSYSTEM S_RPC
 
 #include <linux/obd_support.h>
-#include <linux/obd_class.h>
 #include <linux/lustre_net.h>
 
-extern ptl_handle_eq_t request_out_eq, 
-        reply_in_eq, 
-        reply_out_eq,
-        bulk_source_eq, 
-        bulk_sink_eq;
-static ptl_process_id_t local_id = {PTL_ID_ANY, PTL_ID_ANY};
-
+extern ptl_handle_eq_t request_out_eq, reply_in_eq, reply_out_eq,
+        bulk_source_eq, bulk_sink_eq;
+static ptl_process_id_t local_id = {PTL_NID_ANY, PTL_PID_ANY};
 
 int ptlrpc_check_bulk_sent(struct ptlrpc_bulk_desc *bulk)
 {
-        if (bulk->b_flags == PTL_BULK_SENT) {
-                EXIT;
-                return 1;
-        }
+        ENTRY;
+
+        if (bulk->b_flags & PTL_BULK_FL_SENT)
+                RETURN(1);
 
         if (sigismember(&(current->pending.signal), SIGKILL) ||
             sigismember(&(current->pending.signal), SIGINT)) {
-                bulk->b_flags = PTL_RPC_INTR;
-                EXIT;
-                return 1;
+                bulk->b_flags |= PTL_RPC_FL_INTR;
+                RETURN(1);
         }
 
         CDEBUG(D_NET, "no event yet\n");
-        return 0;
+        RETURN(0);
 }
 
-int ptl_send_buf(struct ptlrpc_request *request, struct lustre_peer *peer,
-                 int portal)
+static int ptl_send_buf(struct ptlrpc_request *request,
+                        struct ptlrpc_connection *conn, int portal)
 {
         int rc;
         ptl_process_id_t remote_id;
@@ -69,22 +57,15 @@ int ptl_send_buf(struct ptlrpc_request *request, struct lustre_peer *peer,
         request->rq_req_md.user_ptr = request;
 
         switch (request->rq_type) {
-        case PTL_RPC_BULK:
-                request->rq_req_md.start = request->rq_bulkbuf;
-                request->rq_req_md.length = request->rq_bulklen;
-                request->rq_req_md.eventq = bulk_source_eq;
-                request->rq_req_md.threshold = 2; /* SENT and ACK events */
-                ack = PTL_ACK_REQ;
-                break;
-        case PTL_RPC_REQUEST:
-                request->rq_req_md.start = request->rq_reqbuf;
+        case PTL_RPC_TYPE_REQUEST:
+                request->rq_req_md.start = request->rq_reqmsg;
                 request->rq_req_md.length = request->rq_reqlen;
                 request->rq_req_md.eventq = request_out_eq;
                 request->rq_req_md.threshold = 1;
                 ack = PTL_NOACK_REQ;
                 break;
-        case PTL_RPC_REPLY:
-                request->rq_req_md.start = request->rq_repbuf;
+        case PTL_RPC_TYPE_REPLY:
+                request->rq_req_md.start = request->rq_repmsg;
                 request->rq_req_md.length = request->rq_replen;
                 request->rq_req_md.eventq = reply_out_eq;
                 request->rq_req_md.threshold = 1;
@@ -97,7 +78,7 @@ int ptl_send_buf(struct ptlrpc_request *request, struct lustre_peer *peer,
         request->rq_req_md.options = PTL_MD_OP_PUT;
         request->rq_req_md.user_ptr = request;
 
-        rc = PtlMDBind(peer->peer_ni, request->rq_req_md, &md_h);
+        rc = PtlMDBind(conn->c_peer.peer_ni, request->rq_req_md, &md_h);
         //CERROR("MDBind (outgoing req/rep/bulk): %Lu\n", (__u64)md_h);
         if (rc != 0) {
                 CERROR("PtlMDBind failed: %d\n", rc);
@@ -105,15 +86,16 @@ int ptl_send_buf(struct ptlrpc_request *request, struct lustre_peer *peer,
                 return rc;
         }
 
-        remote_id.nid = peer->peer_nid;
+        remote_id.nid = conn->c_peer.peer_nid;
         remote_id.pid = 0;
 
-        CDEBUG(D_NET, "Sending %d bytes to portal %d, xid %d\n",
+        CDEBUG(D_NET, "Sending %d bytes to portal %d, xid %Ld\n",
                request->rq_req_md.length, portal, request->rq_xid);
 
-        rc = PtlPut(md_h, ack, remote_id, portal, 0, request->rq_xid, 0, 0);
+        rc = PtlPut(md_h, ack, remote_id, portal, 0, request->rq_xid,
+                    0, 0);
         if (rc != PTL_OK) {
-                CERROR("PtlPut(%d, %d, %d) failed: %d\n", remote_id.nid,
+                CERROR("PtlPut(%Lu, %d, %Ld) failed: %d\n", remote_id.nid,
                        portal, request->rq_xid, rc);
                 PtlMDUnlink(md_h);
         }
@@ -121,182 +103,181 @@ int ptl_send_buf(struct ptlrpc_request *request, struct lustre_peer *peer,
         return rc;
 }
 
-int ptlrpc_send_bulk(struct ptlrpc_bulk_desc *bulk, int portal)
+int ptlrpc_send_bulk(struct ptlrpc_bulk_desc *desc)
 {
         int rc;
+        struct list_head *tmp, *next;
         ptl_process_id_t remote_id;
+        ENTRY;
 
-        bulk->b_md.start = bulk->b_buf;
-        bulk->b_md.length = bulk->b_buflen;
-        bulk->b_md.eventq = bulk_source_eq;
-        bulk->b_md.threshold = 2; /* SENT and ACK events */
-        bulk->b_md.options = PTL_MD_OP_PUT;
-        bulk->b_md.user_ptr = bulk;
-
-        rc = PtlMDBind(bulk->b_peer.peer_ni, bulk->b_md, &bulk->b_md_h);
-        if (rc != 0) {
-                CERROR("PtlMDBind failed: %d\n", rc);
-                LBUG();
-                return rc;
-        }
-
-        remote_id.nid = bulk->b_peer.peer_nid;
-        remote_id.pid = 0;
-
-        CDEBUG(D_NET, "Sending %d bytes to portal %d, xid %d\n",
-               bulk->b_md.length, portal, bulk->b_xid);
-
-        rc = PtlPut(bulk->b_md_h, PTL_ACK_REQ, remote_id, portal, 0,
-                    bulk->b_xid, 0, 0);
-        if (rc != PTL_OK) {
-                CERROR("PtlPut(%d, %d, %d) failed: %d\n", remote_id.nid,
-                       portal, bulk->b_xid, rc);
-                PtlMDUnlink(bulk->b_md_h);
-                LBUG();
+        list_for_each_safe(tmp, next, &desc->b_page_list) {
+                struct ptlrpc_bulk_page *bulk;
+                bulk = list_entry(tmp, struct ptlrpc_bulk_page, b_link);
+
+                bulk->b_md.start = bulk->b_buf;
+                bulk->b_md.length = bulk->b_buflen;
+                bulk->b_md.eventq = bulk_source_eq;
+                bulk->b_md.threshold = 2; /* SENT and ACK */
+                bulk->b_md.options = PTL_MD_OP_PUT;
+                bulk->b_md.user_ptr = bulk;
+
+                rc = PtlMDBind(desc->b_connection->c_peer.peer_ni, bulk->b_md,
+                               &bulk->b_md_h);
+                if (rc != 0) {
+                        CERROR("PtlMDBind failed: %d\n", rc);
+                        LBUG();
+                        RETURN(rc);
+                }
+
+                remote_id.nid = desc->b_connection->c_peer.peer_nid;
+                remote_id.pid = 0;
+
+                CDEBUG(D_NET, "Sending %d bytes to portal %d, xid %d\n",
+                       bulk->b_md.length, desc->b_portal, bulk->b_xid);
+
+                rc = PtlPut(bulk->b_md_h, PTL_ACK_REQ, remote_id,
+                            desc->b_portal, 0, bulk->b_xid, 0, 0);
+                if (rc != PTL_OK) {
+                        CERROR("PtlPut(%Lu, %d, %d) failed: %d\n",
+                               remote_id.nid, desc->b_portal, bulk->b_xid, rc);
+                        PtlMDUnlink(bulk->b_md_h);
+                        LBUG();
+                        RETURN(rc);
+                }
         }
 
-        return rc;
+        RETURN(0);
 }
 
-int ptlrpc_register_bulk(struct ptlrpc_bulk_desc *bulk)
+int ptlrpc_register_bulk(struct ptlrpc_bulk_desc *desc)
 {
+        struct list_head *tmp, *next;
         int rc;
-
         ENTRY;
 
-        rc = PtlMEAttach(bulk->b_peer.peer_ni, bulk->b_portal, local_id,
-                          bulk->b_xid, 0, PTL_UNLINK, PTL_INS_AFTER, 
-                         &bulk->b_me_h);
-        if (rc != PTL_OK) {
-                CERROR("PtlMEAttach failed: %d\n", rc);
-                LBUG();
-                GOTO(cleanup, rc);
-        }
-
-        bulk->b_md.start = bulk->b_buf;
-        bulk->b_md.length = bulk->b_buflen;
-        bulk->b_md.threshold = 1;
-        bulk->b_md.options = PTL_MD_OP_PUT;
-        bulk->b_md.user_ptr = bulk;
-        bulk->b_md.eventq = bulk_sink_eq;
-
-        rc = PtlMDAttach(bulk->b_me_h, bulk->b_md, PTL_UNLINK, &bulk->b_md_h);
-        //CERROR("MDAttach (bulk sink): %Lu\n", (__u64)bulk->b_md_h);
-        if (rc != PTL_OK) {
-                CERROR("PtlMDAttach failed: %d\n", rc);
-                LBUG();
-                GOTO(cleanup, rc);
+        list_for_each_safe(tmp, next, &desc->b_page_list) {
+                struct ptlrpc_bulk_page *bulk;
+                bulk = list_entry(tmp, struct ptlrpc_bulk_page, b_link);
+
+                rc = PtlMEAttach(desc->b_connection->c_peer.peer_ni,
+                                 desc->b_portal, local_id, bulk->b_xid, 0,
+                                 PTL_UNLINK, PTL_INS_AFTER, &bulk->b_me_h);
+                if (rc != PTL_OK) {
+                        CERROR("PtlMEAttach failed: %d\n", rc);
+                        LBUG();
+                        GOTO(cleanup, rc);
+                }
+
+                bulk->b_md.start = bulk->b_buf;
+                bulk->b_md.length = bulk->b_buflen;
+                bulk->b_md.threshold = 1;
+                bulk->b_md.options = PTL_MD_OP_PUT;
+                bulk->b_md.user_ptr = bulk;
+                bulk->b_md.eventq = bulk_sink_eq;
+
+                rc = PtlMDAttach(bulk->b_me_h, bulk->b_md, PTL_UNLINK,
+                                 &bulk->b_md_h);
+                if (rc != PTL_OK) {
+                        CERROR("PtlMDAttach failed: %d\n", rc);
+                        LBUG();
+                        GOTO(cleanup, rc);
+                }
+
+                CDEBUG(D_NET, "Setup bulk sink buffer: %u bytes, xid %u, "
+                       "portal %u\n", bulk->b_buflen, bulk->b_xid,
+                       desc->b_portal);
         }
 
-        CDEBUG(D_NET, "Setup bulk sink buffer: %u bytes, xid %u, portal %u\n",
-               bulk->b_buflen, bulk->b_xid, bulk->b_portal);
         RETURN(0);
 
-        // XXX Confirm that this is safe!
  cleanup:
-        PtlMEUnlink(bulk->b_me_h);
+        ptlrpc_abort_bulk(desc);
+
         return rc;
 }
 
-int ptlrpc_abort_bulk(struct ptlrpc_bulk_desc *bulk)
+int ptlrpc_abort_bulk(struct ptlrpc_bulk_desc *desc)
 {
-        int rc;
+        struct list_head *tmp, *next;
 
-        rc = PtlMEUnlink(bulk->b_me_h);
-        if (rc != PTL_OK)
-                CERROR("PtlMEUnlink failed: %d\n", rc);
+        list_for_each_safe(tmp, next, &desc->b_page_list) {
+                struct ptlrpc_bulk_page *bulk;
+                bulk = list_entry(tmp, struct ptlrpc_bulk_page, b_link);
 
-        return rc;
+                /* This should be safe: these handles are initialized to be
+                 * invalid in ptlrpc_prep_bulk_page() */
+                PtlMDUnlink(bulk->b_md_h);
+                PtlMEUnlink(bulk->b_me_h);
+        }
+
+        return 0;
 }
 
-int ptlrpc_reply(struct obd_device *obddev, struct ptlrpc_service *svc,
-                 struct ptlrpc_request *req)
+int ptlrpc_reply(struct ptlrpc_service *svc, struct ptlrpc_request *req)
 {
-        struct ptlrpc_request *clnt_req = req->rq_reply_handle;
-        ENTRY;
-
-        if (req->rq_reply_handle == NULL) {
-                /* This is a request that came from the network via portals. */
-
-                /* FIXME: we need to increment the count of handled events */
-                req->rq_type = PTL_RPC_REPLY;
-                req->rq_repmsg->xid = HTON__u32(req->rq_reqmsg->xid);
-                req->rq_repmsg->status = HTON__u32(req->rq_status);
-                req->rq_reqmsg->type = HTON__u32(req->rq_type);
-                ptl_send_buf(req, &req->rq_peer, svc->srv_rep_portal);
-        } else {
-                /* This is a local request that came from another thread. */
-
-                /* move the reply to the client */ 
-                clnt_req->rq_replen = req->rq_replen;
-                clnt_req->rq_repbuf = req->rq_repbuf;
-                req->rq_repbuf = NULL;
-                req->rq_replen = 0;
-
-                /* free the request buffer */
-                OBD_FREE(req->rq_reqbuf, req->rq_reqlen);
-                req->rq_reqbuf = NULL;
-
-                /* wake up the client */ 
-                wake_up_interruptible(&clnt_req->rq_wait_for_rep); 
-        }
-
-        RETURN(0);
+        /* FIXME: we need to increment the count of handled events */
+        req->rq_type = PTL_RPC_TYPE_REPLY;
+        //req->rq_repmsg->conn = req->rq_connection->c_remote_conn;
+        //req->rq_repmsg->token = req->rq_connection->c_remote_token;
+        req->rq_repmsg->status = HTON__u32(req->rq_status);
+        req->rq_reqmsg->type = HTON__u32(req->rq_type);
+        return ptl_send_buf(req, req->rq_connection, svc->srv_rep_portal);
 }
 
-int ptlrpc_error(struct obd_device *obddev, struct ptlrpc_service *svc,
-                 struct ptlrpc_request *req)
+int ptlrpc_error(struct ptlrpc_service *svc, struct ptlrpc_request *req)
 {
         int rc;
         ENTRY;
 
-        if (req->rq_repbuf) {
-                CERROR("req has repbuf\n");
+        if (req->rq_repmsg) {
+                CERROR("req already has repmsg\n");
                 LBUG();
         }
 
-        rc = lustre_pack_msg(0, NULL, NULL, &req->rq_replen, &req->rq_repbuf);
-        req->rq_repmsg = (struct lustre_msg *)req->rq_repbuf;
+        rc = lustre_pack_msg(0, NULL, NULL, &req->rq_replen, &req->rq_repmsg);
         if (rc)
                 RETURN(rc);
 
-        req->rq_repmsg->type = HTON__u32(PTL_RPC_ERR);
+        req->rq_repmsg->type = HTON__u32(PTL_RPC_MSG_ERR);
 
-        rc = ptlrpc_reply(obddev, svc, req);
+        rc = ptlrpc_reply(svc, req);
         RETURN(rc);
 }
 
-int ptl_send_rpc(struct ptlrpc_request *request, struct ptlrpc_client *cl)
+
+int ptl_send_rpc(struct ptlrpc_request *request)
 {
-        ptl_process_id_t local_id;
         int rc;
         char *repbuf;
 
         ENTRY;
 
-        if (NTOH__u32(request->rq_reqmsg->type) != PTL_RPC_REQUEST) {
+        if (NTOH__u32(request->rq_reqmsg->type) != PTL_RPC_MSG_REQUEST) {
                 CERROR("wrong packet type sent %d\n",
                        NTOH__u32(request->rq_reqmsg->type));
                 LBUG();
-                RETURN(-EINVAL);
+                RETURN(EINVAL);
         }
         if (request->rq_replen == 0) {
                 CERROR("request->rq_replen is 0!\n");
-                RETURN(-EINVAL);
+                RETURN(EINVAL);
         }
 
-        /* request->rq_repbuf is set only when the reply comes in, in
+        /* request->rq_repmsg is set only when the reply comes in, in
          * client_packet_callback() */
-        OBD_ALLOC(repbuf, request->rq_replen);
-        if (!repbuf)
-                RETURN(-ENOMEM);
+        if (request->rq_reply_md.start)
+                OBD_FREE(request->rq_reply_md.start, request->rq_replen);
 
-        local_id.nid = PTL_ID_ANY;
-        local_id.pid = PTL_ID_ANY;
+        OBD_ALLOC(repbuf, request->rq_replen);
+        if (!repbuf) {
+                LBUG();
+                RETURN(ENOMEM);
+        }
 
-        down(&cl->cli_rpc_sem);
+        down(&request->rq_client->cli_rpc_sem);
 
-        rc = PtlMEAttach(cl->cli_server.peer_ni, request->rq_reply_portal,
+        rc = PtlMEAttach(request->rq_connection->c_peer.peer_ni,
+                         request->rq_client->cli_reply_portal,
                          local_id, request->rq_xid, 0, PTL_UNLINK,
                          PTL_INS_AFTER, &request->rq_reply_me_h);
         if (rc != PTL_OK) {
@@ -305,7 +286,7 @@ int ptl_send_rpc(struct ptlrpc_request *request, struct ptlrpc_client *cl)
                 GOTO(cleanup, rc);
         }
 
-        request->rq_type = PTL_RPC_REQUEST;
+        request->rq_type = PTL_RPC_TYPE_REQUEST;
         request->rq_reply_md.start = repbuf;
         request->rq_reply_md.length = request->rq_replen;
         request->rq_reply_md.threshold = 1;
@@ -321,18 +302,19 @@ int ptl_send_rpc(struct ptlrpc_request *request, struct ptlrpc_client *cl)
                 GOTO(cleanup2, rc);
         }
 
-        CDEBUG(D_NET, "Setup reply buffer: %u bytes, xid %u, portal %u\n",
-               request->rq_replen, request->rq_xid, request->rq_reply_portal);
+        CDEBUG(D_NET, "Setup reply buffer: %u bytes, xid %Lu, portal %u\n",
+               request->rq_replen, request->rq_xid,
+               request->rq_client->cli_reply_portal);
 
-        list_add(&request->rq_list, &cl->cli_sending_head);
-        rc = ptl_send_buf(request, &cl->cli_server, request->rq_req_portal);
+        rc = ptl_send_buf(request, request->rq_connection,
+                          request->rq_client->cli_request_portal);
         RETURN(rc);
 
  cleanup2:
         PtlMEUnlink(request->rq_reply_me_h);
  cleanup:
         OBD_FREE(repbuf, request->rq_replen);
-        up(&cl->cli_rpc_sem);
+        up(&request->rq_client->cli_rpc_sem);
 
         return rc;
 }
@@ -345,7 +327,7 @@ void ptlrpc_link_svc_me(struct ptlrpc_service *service, int i)
 
         /* Attach the leading ME on which we build the ring */
         rc = PtlMEAttach(service->srv_self.peer_ni, service->srv_req_portal,
-                         service->srv_id, 0, ~0, PTL_RETAIN, PTL_INS_BEFORE,
+                         local_id, 0, ~0, PTL_RETAIN, PTL_INS_BEFORE,
                          &(service->srv_me_h[i]));
         if (rc != PTL_OK) {
                 CERROR("PtlMEAttach failed: %d\n", rc);
@@ -381,7 +363,6 @@ int ptl_handled_rpc(struct ptlrpc_service *service, void *start)
         int index;
 
         spin_lock(&service->srv_lock);
-
         for (index = 0; index < service->srv_ring_length; index++)
                 if (service->srv_buf[index] == start) 
                         break;