- spin_lock_irqsave(&req->rq_lock, flags);
- if (!req->rq_replied)
- req->rq_timedout = 1;
- spin_unlock_irqrestore(&req->rq_lock, flags);
-
- return 1;
-}
-
-/* to make things as simple as possible */
-static int rawrpc_check_reply(struct ptlrpc_request *req)
-{
- unsigned long flags;
- int rc;
-
- spin_lock_irqsave (&req->rq_lock, flags);
- rc = req->rq_replied || req->rq_net_err || req->rq_err ||
- req->rq_resend || req->rq_restart;
- spin_unlock_irqrestore(&req->rq_lock, flags);
- return rc;
-}
-
-/*
- * Construct a fake ptlrpc_request to do the work, in order to
- * user the existing callback/wakeup facilities
- */
-int ptlrpc_do_rawrpc(struct obd_import *imp,
- char *reqbuf, int reqlen,
- char *repbuf, int *replenp,
- int timeout)
-{
- struct ptlrpc_connection *conn;
- struct ptlrpc_request request; /* just a fake one */
- ptl_handle_me_t reply_me_h;
- ptl_md_t reply_md, req_md;
- struct l_wait_info lwi;
- unsigned long irq_flags;
- int rc;
- ENTRY;
-
- LASSERT(imp);
- class_import_get(imp);
- if (imp->imp_state == LUSTRE_IMP_CLOSED) {
- CDEBUG(D_SEC, "raw rpc on closed imp(=>%s)? send anyway\n",
- imp->imp_target_uuid.uuid);
- }
-
- conn = imp->imp_connection;
-
- /* initialize request */
- memset(&request, 0, sizeof(request));
- request.rq_req_cbid.cbid_fn = request_out_callback;
- request.rq_req_cbid.cbid_arg = &request;
- request.rq_reply_cbid.cbid_fn = reply_in_callback;
- request.rq_reply_cbid.cbid_arg = &request;
- request.rq_reqbuf = reqbuf;
- request.rq_reqbuf_len = reqlen;
- request.rq_repbuf = repbuf;
- request.rq_repbuf_len = *replenp;
- request.rq_set = NULL;
- spin_lock_init(&request.rq_lock);
- init_waitqueue_head(&request.rq_reply_waitq);
- atomic_set(&request.rq_refcount, 1000000); /* never be droped */
- request.rq_xid = ptlrpc_next_xid();
-
- /* add into sending list */
- spin_lock_irqsave(&imp->imp_lock, irq_flags);
- list_add_tail(&request.rq_list, &imp->imp_rawrpc_list);
- spin_unlock_irqrestore(&imp->imp_lock, irq_flags);
-
- /* prepare reply buffer */
- rc = PtlMEAttach(conn->c_peer.peer_ni->pni_ni_h,
- imp->imp_client->cli_reply_portal,
- conn->c_peer.peer_id, request.rq_xid, 0, PTL_UNLINK,
- PTL_INS_AFTER, &reply_me_h);
- if (rc != PTL_OK) {
- CERROR("PtlMEAttach failed: %d\n", rc);
- LASSERT (rc == PTL_NO_SPACE);
- GOTO(cleanup_imp, rc = -ENOMEM);
- }
-
- spin_lock_irqsave(&request.rq_lock, irq_flags);
- request.rq_receiving_reply = 1;
- spin_unlock_irqrestore(&request.rq_lock, irq_flags);
-
- reply_md.start = repbuf;
- reply_md.length = *replenp;
- reply_md.threshold = 1;
- reply_md.options = PTLRPC_MD_OPTIONS | PTL_MD_OP_PUT;
- reply_md.user_ptr = &request.rq_reply_cbid;
- reply_md.eq_handle = conn->c_peer.peer_ni->pni_eq_h;
-
- rc = PtlMDAttach(reply_me_h, reply_md, PTL_UNLINK,
- &request.rq_reply_md_h);
- if (rc != PTL_OK) {
- CERROR("PtlMDAttach failed: %d\n", rc);
- LASSERT (rc == PTL_NO_SPACE);
- GOTO(cleanup_me, rc = -ENOMEM);
- }
-
- /* prepare request buffer */
- req_md.start = reqbuf;
- req_md.length = reqlen;
- req_md.threshold = 1;
- req_md.options = PTLRPC_MD_OPTIONS;
- req_md.user_ptr = &request.rq_req_cbid;
- req_md.eq_handle = conn->c_peer.peer_ni->pni_eq_h;
-
- rc = PtlMDBind(conn->c_peer.peer_ni->pni_ni_h,
- req_md, PTL_UNLINK, &request.rq_req_md_h);
- if (rc != PTL_OK) {
- CERROR("PtlMDBind failed %d\n", rc);
- LASSERT (rc == PTL_NO_SPACE);
- GOTO(cleanup_me, rc = -ENOMEM);
- }
-
- rc = PtlPut(request.rq_req_md_h, PTL_NOACK_REQ, conn->c_peer.peer_id,
- imp->imp_client->cli_request_portal,
- 0, request.rq_xid, 0, 0);
- if (rc != PTL_OK) {
- CERROR("PtlPut failed %d\n", rc);
- GOTO(cleanup_md, rc);
- }
-
- lwi = LWI_TIMEOUT(timeout * HZ, rawrpc_timedout, &request);
- l_wait_event(request.rq_reply_waitq,
- rawrpc_check_reply(&request), &lwi);
-
- ptlrpc_unregister_reply(&request);
-
- if (request.rq_err || request.rq_resend || request.rq_intr ||
- request.rq_timedout || !request.rq_replied) {
- CERROR("secinit rpc error: err %d, resend %d, "
- "intr %d, timedout %d, replied %d\n",
- request.rq_err, request.rq_resend, request.rq_intr,
- request.rq_timedout, request.rq_replied);
- if (request.rq_timedout)
- rc = -ETIMEDOUT;
- else
- rc = -EINVAL;
- } else {
- *replenp = request.rq_nob_received;
- rc = 0;
- }
- GOTO(cleanup_imp, rc);
-
-cleanup_md:
- PtlMDUnlink(request.rq_req_md_h);
-cleanup_me:
- PtlMEUnlink(reply_me_h);
-cleanup_imp:
- spin_lock_irqsave(&imp->imp_lock, irq_flags);
- list_del_init(&request.rq_list);
- spin_unlock_irqrestore(&imp->imp_lock, irq_flags);
-
- class_import_put(imp);
- RETURN(rc);