1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2002 Cluster File Systems, Inc.
6 * This file is part of Lustre, http://www.lustre.org.
8 * Lustre is free software; you can redistribute it and/or
9 * modify it under the terms of version 2 of the GNU General Public
10 * License as published by the Free Software Foundation.
12 * Lustre is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Lustre; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 #include <linux/module.h>
27 #define DEBUG_SUBSYSTEM S_RPC
29 #include <linux/lustre_net.h>
31 ptl_handle_eq_t request_out_eq,
36 static const ptl_handle_ni_t *socknal_nip = NULL, *qswnal_nip = NULL;
39 * Free the packet when it has gone out
41 static int request_out_callback(ptl_event_t *ev, void *data)
43 struct ptlrpc_request *req = ev->mem_desc.user_ptr;
44 struct ptlrpc_client *cl = req->rq_client;
48 if (ev->type == PTL_EVENT_SENT) {
49 spin_lock(&req->rq_client->cli_lock);
50 list_del(&req->rq_list);
51 list_add(&req->rq_list, &cl->cli_sent_head);
52 spin_unlock(&req->rq_client->cli_lock);
54 // XXX make sure we understand all events, including ACK's
55 CERROR("Unknown event %d\n", ev->type);
64 * Free the packet when it has gone out
66 static int reply_out_callback(ptl_event_t *ev, void *data)
70 if (ev->type == PTL_EVENT_SENT) {
71 OBD_FREE(ev->mem_desc.start, ev->mem_desc.length);
73 // XXX make sure we understand all events, including ACK's
74 CERROR("Unknown event %d\n", ev->type);
82 * Wake up the thread waiting for the reply once it comes in.
84 static int reply_in_callback(ptl_event_t *ev, void *data)
86 struct ptlrpc_request *rpc = ev->mem_desc.user_ptr;
89 if (ev->type == PTL_EVENT_PUT) {
90 rpc->rq_repmsg = ev->mem_desc.start + ev->offset;
92 wake_up_interruptible(&rpc->rq_wait_for_rep);
94 // XXX make sure we understand all events, including ACK's
95 CERROR("Unknown event %d\n", ev->type);
102 int request_in_callback(ptl_event_t *ev, void *data)
104 struct ptlrpc_service *service = data;
107 if (ev->rlength != ev->mlength)
108 CERROR("Warning: Possibly truncated rpc (%d/%d)\n",
109 ev->mlength, ev->rlength);
111 spin_lock(&service->srv_lock);
112 for (index = 0; index < service->srv_ring_length; index++)
113 if ( service->srv_buf[index] == ev->mem_desc.start)
116 if (index == service->srv_ring_length)
119 service->srv_ref_count[index]++;
121 if (ptl_is_valid_handle(&ev->unlinked_me)) {
124 for (idx = 0; idx < service->srv_ring_length; idx++)
125 if (service->srv_me_h[idx].handle_idx ==
126 ev->unlinked_me.handle_idx)
128 if (idx == service->srv_ring_length)
131 CDEBUG(D_NET, "unlinked %d\n", idx);
132 ptl_set_inv_handle(&(service->srv_me_h[idx]));
134 if (service->srv_ref_count[idx] == 0)
135 ptlrpc_link_svc_me(service, idx);
138 spin_unlock(&service->srv_lock);
139 if (ev->type == PTL_EVENT_PUT)
140 wake_up(&service->srv_waitq);
142 CERROR("Unexpected event type: %d\n", ev->type);
147 static int bulk_source_callback(ptl_event_t *ev, void *data)
149 struct ptlrpc_bulk_desc *bulk = ev->mem_desc.user_ptr;
153 if (ev->type == PTL_EVENT_SENT) {
154 CDEBUG(D_NET, "got SENT event\n");
155 } else if (ev->type == PTL_EVENT_ACK) {
156 CDEBUG(D_NET, "got ACK event\n");
157 bulk->b_flags = PTL_BULK_SENT;
158 wake_up_interruptible(&bulk->b_waitq);
160 CERROR("Unexpected event type!\n");
168 static int bulk_sink_callback(ptl_event_t *ev, void *data)
170 struct ptlrpc_bulk_desc *bulk = ev->mem_desc.user_ptr;
174 if (ev->type == PTL_EVENT_PUT) {
175 if (bulk->b_buf != ev->mem_desc.start + ev->offset)
176 CERROR("bulkbuf != mem_desc -- why?\n");
177 bulk->b_flags = PTL_BULK_RCVD;
178 if (bulk->b_cb != NULL)
179 bulk->b_cb(bulk, data);
180 wake_up_interruptible(&bulk->b_waitq);
182 CERROR("Unexpected event type!\n");
186 /* FIXME: This should happen unconditionally */
187 if (bulk->b_cb != NULL)
188 OBD_FREE(bulk, sizeof(*bulk));
194 int ptlrpc_init_portals(void)
199 socknal_nip = inter_module_get_request("ksocknal_ni", "ksocknal");
200 qswnal_nip = inter_module_get_request("kqswnal_ni", "kqswnal");
201 if (socknal_nip == NULL && qswnal_nip == NULL) {
202 CERROR("get_ni failed: is a NAL module loaded?\n");
206 /* Use the qswnal if it's there */
207 if (qswnal_nip != NULL)
212 rc = PtlEQAlloc(ni, 128, request_out_callback, NULL, &request_out_eq);
214 CERROR("PtlEQAlloc failed: %d\n", rc);
216 rc = PtlEQAlloc(ni, 128, reply_out_callback, NULL, &reply_out_eq);
218 CERROR("PtlEQAlloc failed: %d\n", rc);
220 rc = PtlEQAlloc(ni, 128, reply_in_callback, NULL, &reply_in_eq);
222 CERROR("PtlEQAlloc failed: %d\n", rc);
224 rc = PtlEQAlloc(ni, 128, bulk_source_callback, NULL, &bulk_source_eq);
226 CERROR("PtlEQAlloc failed: %d\n", rc);
228 rc = PtlEQAlloc(ni, 128, bulk_sink_callback, NULL, &bulk_sink_eq);
230 CERROR("PtlEQAlloc failed: %d\n", rc);
235 void ptlrpc_exit_portals(void)
237 PtlEQFree(request_out_eq);
238 PtlEQFree(reply_out_eq);
239 PtlEQFree(reply_in_eq);
240 PtlEQFree(bulk_source_eq);
241 PtlEQFree(bulk_sink_eq);
243 if (qswnal_nip != NULL)
244 inter_module_put("kqswnal_ni");
245 if (socknal_nip != NULL)
246 inter_module_put("ksocknal_ni");