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Diffstat (limited to 'drivers/infiniband/hw/cxgb3/iwch_ev.c')
-rw-r--r--drivers/infiniband/hw/cxgb3/iwch_ev.c231
1 files changed, 231 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/cxgb3/iwch_ev.c b/drivers/infiniband/hw/cxgb3/iwch_ev.c
new file mode 100644
index 000000000000..a6efa8fe15d8
--- /dev/null
+++ b/drivers/infiniband/hw/cxgb3/iwch_ev.c
@@ -0,0 +1,231 @@
1/*
2 * Copyright (c) 2006 Chelsio, Inc. All rights reserved.
3 * Copyright (c) 2006 Open Grid Computing, Inc. All rights reserved.
4 *
5 * This software is available to you under a choice of one of two
6 * licenses. You may choose to be licensed under the terms of the GNU
7 * General Public License (GPL) Version 2, available from the file
8 * COPYING in the main directory of this source tree, or the
9 * OpenIB.org BSD license below:
10 *
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
13 * conditions are met:
14 *
15 * - Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
17 * disclaimer.
18 *
19 * - Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
21 * disclaimer in the documentation and/or other materials
22 * provided with the distribution.
23 *
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
31 * SOFTWARE.
32 */
33#include <linux/slab.h>
34#include <linux/mman.h>
35#include <net/sock.h>
36#include "iwch_provider.h"
37#include "iwch.h"
38#include "iwch_cm.h"
39#include "cxio_hal.h"
40#include "cxio_wr.h"
41
42static void post_qp_event(struct iwch_dev *rnicp, struct iwch_cq *chp,
43 struct respQ_msg_t *rsp_msg,
44 enum ib_event_type ib_event,
45 int send_term)
46{
47 struct ib_event event;
48 struct iwch_qp_attributes attrs;
49 struct iwch_qp *qhp;
50
51 printk(KERN_ERR "%s - AE qpid 0x%x opcode %d status 0x%x "
52 "type %d wrid.hi 0x%x wrid.lo 0x%x \n", __FUNCTION__,
53 CQE_QPID(rsp_msg->cqe), CQE_OPCODE(rsp_msg->cqe),
54 CQE_STATUS(rsp_msg->cqe), CQE_TYPE(rsp_msg->cqe),
55 CQE_WRID_HI(rsp_msg->cqe), CQE_WRID_LOW(rsp_msg->cqe));
56
57 spin_lock(&rnicp->lock);
58 qhp = get_qhp(rnicp, CQE_QPID(rsp_msg->cqe));
59
60 if (!qhp) {
61 printk(KERN_ERR "%s unaffiliated error 0x%x qpid 0x%x\n",
62 __FUNCTION__, CQE_STATUS(rsp_msg->cqe),
63 CQE_QPID(rsp_msg->cqe));
64 spin_unlock(&rnicp->lock);
65 return;
66 }
67
68 if ((qhp->attr.state == IWCH_QP_STATE_ERROR) ||
69 (qhp->attr.state == IWCH_QP_STATE_TERMINATE)) {
70 PDBG("%s AE received after RTS - "
71 "qp state %d qpid 0x%x status 0x%x\n", __FUNCTION__,
72 qhp->attr.state, qhp->wq.qpid, CQE_STATUS(rsp_msg->cqe));
73 spin_unlock(&rnicp->lock);
74 return;
75 }
76
77 atomic_inc(&qhp->refcnt);
78 spin_unlock(&rnicp->lock);
79
80 event.event = ib_event;
81 event.device = chp->ibcq.device;
82 if (ib_event == IB_EVENT_CQ_ERR)
83 event.element.cq = &chp->ibcq;
84 else
85 event.element.qp = &qhp->ibqp;
86
87 if (qhp->ibqp.event_handler)
88 (*qhp->ibqp.event_handler)(&event, qhp->ibqp.qp_context);
89
90 if (qhp->attr.state == IWCH_QP_STATE_RTS) {
91 attrs.next_state = IWCH_QP_STATE_TERMINATE;
92 iwch_modify_qp(qhp->rhp, qhp, IWCH_QP_ATTR_NEXT_STATE,
93 &attrs, 1);
94 if (send_term)
95 iwch_post_terminate(qhp, rsp_msg);
96 }
97
98 if (atomic_dec_and_test(&qhp->refcnt))
99 wake_up(&qhp->wait);
100}
101
102void iwch_ev_dispatch(struct cxio_rdev *rdev_p, struct sk_buff *skb)
103{
104 struct iwch_dev *rnicp;
105 struct respQ_msg_t *rsp_msg = (struct respQ_msg_t *) skb->data;
106 struct iwch_cq *chp;
107 struct iwch_qp *qhp;
108 u32 cqid = RSPQ_CQID(rsp_msg);
109
110 rnicp = (struct iwch_dev *) rdev_p->ulp;
111 spin_lock(&rnicp->lock);
112 chp = get_chp(rnicp, cqid);
113 qhp = get_qhp(rnicp, CQE_QPID(rsp_msg->cqe));
114 if (!chp || !qhp) {
115 printk(KERN_ERR MOD "BAD AE cqid 0x%x qpid 0x%x opcode %d "
116 "status 0x%x type %d wrid.hi 0x%x wrid.lo 0x%x \n",
117 cqid, CQE_QPID(rsp_msg->cqe),
118 CQE_OPCODE(rsp_msg->cqe), CQE_STATUS(rsp_msg->cqe),
119 CQE_TYPE(rsp_msg->cqe), CQE_WRID_HI(rsp_msg->cqe),
120 CQE_WRID_LOW(rsp_msg->cqe));
121 spin_unlock(&rnicp->lock);
122 goto out;
123 }
124 iwch_qp_add_ref(&qhp->ibqp);
125 atomic_inc(&chp->refcnt);
126 spin_unlock(&rnicp->lock);
127
128 /*
129 * 1) completion of our sending a TERMINATE.
130 * 2) incoming TERMINATE message.
131 */
132 if ((CQE_OPCODE(rsp_msg->cqe) == T3_TERMINATE) &&
133 (CQE_STATUS(rsp_msg->cqe) == 0)) {
134 if (SQ_TYPE(rsp_msg->cqe)) {
135 PDBG("%s QPID 0x%x ep %p disconnecting\n",
136 __FUNCTION__, qhp->wq.qpid, qhp->ep);
137 iwch_ep_disconnect(qhp->ep, 0, GFP_ATOMIC);
138 } else {
139 PDBG("%s post REQ_ERR AE QPID 0x%x\n", __FUNCTION__,
140 qhp->wq.qpid);
141 post_qp_event(rnicp, chp, rsp_msg,
142 IB_EVENT_QP_REQ_ERR, 0);
143 iwch_ep_disconnect(qhp->ep, 0, GFP_ATOMIC);
144 }
145 goto done;
146 }
147
148 /* Bad incoming Read request */
149 if (SQ_TYPE(rsp_msg->cqe) &&
150 (CQE_OPCODE(rsp_msg->cqe) == T3_READ_RESP)) {
151 post_qp_event(rnicp, chp, rsp_msg, IB_EVENT_QP_REQ_ERR, 1);
152 goto done;
153 }
154
155 /* Bad incoming write */
156 if (RQ_TYPE(rsp_msg->cqe) &&
157 (CQE_OPCODE(rsp_msg->cqe) == T3_RDMA_WRITE)) {
158 post_qp_event(rnicp, chp, rsp_msg, IB_EVENT_QP_REQ_ERR, 1);
159 goto done;
160 }
161
162 switch (CQE_STATUS(rsp_msg->cqe)) {
163
164 /* Completion Events */
165 case TPT_ERR_SUCCESS:
166
167 /*
168 * Confirm the destination entry if this is a RECV completion.
169 */
170 if (qhp->ep && SQ_TYPE(rsp_msg->cqe))
171 dst_confirm(qhp->ep->dst);
172 (*chp->ibcq.comp_handler)(&chp->ibcq, chp->ibcq.cq_context);
173 break;
174
175 case TPT_ERR_STAG:
176 case TPT_ERR_PDID:
177 case TPT_ERR_QPID:
178 case TPT_ERR_ACCESS:
179 case TPT_ERR_WRAP:
180 case TPT_ERR_BOUND:
181 case TPT_ERR_INVALIDATE_SHARED_MR:
182 case TPT_ERR_INVALIDATE_MR_WITH_MW_BOUND:
183 printk(KERN_ERR "%s - CQE Err qpid 0x%x opcode %d status 0x%x "
184 "type %d wrid.hi 0x%x wrid.lo 0x%x \n", __FUNCTION__,
185 CQE_QPID(rsp_msg->cqe), CQE_OPCODE(rsp_msg->cqe),
186 CQE_STATUS(rsp_msg->cqe), CQE_TYPE(rsp_msg->cqe),
187 CQE_WRID_HI(rsp_msg->cqe), CQE_WRID_LOW(rsp_msg->cqe));
188 (*chp->ibcq.comp_handler)(&chp->ibcq, chp->ibcq.cq_context);
189 post_qp_event(rnicp, chp, rsp_msg, IB_EVENT_QP_ACCESS_ERR, 1);
190 break;
191
192 /* Device Fatal Errors */
193 case TPT_ERR_ECC:
194 case TPT_ERR_ECC_PSTAG:
195 case TPT_ERR_INTERNAL_ERR:
196 post_qp_event(rnicp, chp, rsp_msg, IB_EVENT_DEVICE_FATAL, 1);
197 break;
198
199 /* QP Fatal Errors */
200 case TPT_ERR_OUT_OF_RQE:
201 case TPT_ERR_PBL_ADDR_BOUND:
202 case TPT_ERR_CRC:
203 case TPT_ERR_MARKER:
204 case TPT_ERR_PDU_LEN_ERR:
205 case TPT_ERR_DDP_VERSION:
206 case TPT_ERR_RDMA_VERSION:
207 case TPT_ERR_OPCODE:
208 case TPT_ERR_DDP_QUEUE_NUM:
209 case TPT_ERR_MSN:
210 case TPT_ERR_TBIT:
211 case TPT_ERR_MO:
212 case TPT_ERR_MSN_GAP:
213 case TPT_ERR_MSN_RANGE:
214 case TPT_ERR_RQE_ADDR_BOUND:
215 case TPT_ERR_IRD_OVERFLOW:
216 post_qp_event(rnicp, chp, rsp_msg, IB_EVENT_QP_FATAL, 1);
217 break;
218
219 default:
220 printk(KERN_ERR MOD "Unknown T3 status 0x%x QPID 0x%x\n",
221 CQE_STATUS(rsp_msg->cqe), qhp->wq.qpid);
222 post_qp_event(rnicp, chp, rsp_msg, IB_EVENT_QP_FATAL, 1);
223 break;
224 }
225done:
226 if (atomic_dec_and_test(&chp->refcnt))
227 wake_up(&chp->wait);
228 iwch_qp_rem_ref(&qhp->ibqp);
229out:
230 dev_kfree_skb_irq(skb);
231}
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-27 06:04:02 -0500