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