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b038ced7 SW |
1 | /* |
2 | * Copyright (c) 2006 Chelsio, Inc. All rights reserved. | |
b038ced7 SW |
3 | * |
4 | * This software is available to you under a choice of one of two | |
5 | * licenses. You may choose to be licensed under the terms of the GNU | |
6 | * General Public License (GPL) Version 2, available from the file | |
7 | * COPYING in the main directory of this source tree, or the | |
8 | * OpenIB.org BSD license below: | |
9 | * | |
10 | * Redistribution and use in source and binary forms, with or | |
11 | * without modification, are permitted provided that the following | |
12 | * conditions are met: | |
13 | * | |
14 | * - Redistributions of source code must retain the above | |
15 | * copyright notice, this list of conditions and the following | |
16 | * disclaimer. | |
17 | * | |
18 | * - Redistributions in binary form must reproduce the above | |
19 | * copyright notice, this list of conditions and the following | |
20 | * disclaimer in the documentation and/or other materials | |
21 | * provided with the distribution. | |
22 | * | |
23 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
24 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
25 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
26 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
27 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
28 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
29 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
30 | * SOFTWARE. | |
31 | */ | |
5a0e3ad6 | 32 | #include <linux/gfp.h> |
b038ced7 SW |
33 | #include <linux/mman.h> |
34 | #include <net/sock.h> | |
35 | #include "iwch_provider.h" | |
36 | #include "iwch.h" | |
37 | #include "iwch_cm.h" | |
38 | #include "cxio_hal.h" | |
39 | #include "cxio_wr.h" | |
40 | ||
41 | static void post_qp_event(struct iwch_dev *rnicp, struct iwch_cq *chp, | |
42 | struct respQ_msg_t *rsp_msg, | |
43 | enum ib_event_type ib_event, | |
44 | int send_term) | |
45 | { | |
46 | struct ib_event event; | |
47 | struct iwch_qp_attributes attrs; | |
48 | struct iwch_qp *qhp; | |
49 | ||
b038ced7 SW |
50 | spin_lock(&rnicp->lock); |
51 | qhp = get_qhp(rnicp, CQE_QPID(rsp_msg->cqe)); | |
52 | ||
53 | if (!qhp) { | |
54 | printk(KERN_ERR "%s unaffiliated error 0x%x qpid 0x%x\n", | |
33718363 | 55 | __func__, CQE_STATUS(rsp_msg->cqe), |
b038ced7 SW |
56 | CQE_QPID(rsp_msg->cqe)); |
57 | spin_unlock(&rnicp->lock); | |
58 | return; | |
59 | } | |
60 | ||
61 | if ((qhp->attr.state == IWCH_QP_STATE_ERROR) || | |
62 | (qhp->attr.state == IWCH_QP_STATE_TERMINATE)) { | |
63 | PDBG("%s AE received after RTS - " | |
33718363 | 64 | "qp state %d qpid 0x%x status 0x%x\n", __func__, |
b038ced7 SW |
65 | qhp->attr.state, qhp->wq.qpid, CQE_STATUS(rsp_msg->cqe)); |
66 | spin_unlock(&rnicp->lock); | |
67 | return; | |
68 | } | |
69 | ||
8cfccf02 | 70 | printk(KERN_ERR "%s - AE qpid 0x%x opcode %d status 0x%x " |
33718363 | 71 | "type %d wrid.hi 0x%x wrid.lo 0x%x \n", __func__, |
8cfccf02 SW |
72 | CQE_QPID(rsp_msg->cqe), CQE_OPCODE(rsp_msg->cqe), |
73 | CQE_STATUS(rsp_msg->cqe), CQE_TYPE(rsp_msg->cqe), | |
74 | CQE_WRID_HI(rsp_msg->cqe), CQE_WRID_LOW(rsp_msg->cqe)); | |
75 | ||
b038ced7 SW |
76 | atomic_inc(&qhp->refcnt); |
77 | spin_unlock(&rnicp->lock); | |
78 | ||
79 | event.event = ib_event; | |
80 | event.device = chp->ibcq.device; | |
81 | if (ib_event == IB_EVENT_CQ_ERR) | |
82 | event.element.cq = &chp->ibcq; | |
83 | else | |
84 | event.element.qp = &qhp->ibqp; | |
85 | ||
86 | if (qhp->ibqp.event_handler) | |
87 | (*qhp->ibqp.event_handler)(&event, qhp->ibqp.qp_context); | |
88 | ||
89 | if (qhp->attr.state == IWCH_QP_STATE_RTS) { | |
90 | attrs.next_state = IWCH_QP_STATE_TERMINATE; | |
91 | iwch_modify_qp(qhp->rhp, qhp, IWCH_QP_ATTR_NEXT_STATE, | |
92 | &attrs, 1); | |
93 | if (send_term) | |
94 | iwch_post_terminate(qhp, rsp_msg); | |
95 | } | |
96 | ||
97 | if (atomic_dec_and_test(&qhp->refcnt)) | |
98 | wake_up(&qhp->wait); | |
99 | } | |
100 | ||
101 | void iwch_ev_dispatch(struct cxio_rdev *rdev_p, struct sk_buff *skb) | |
102 | { | |
103 | struct iwch_dev *rnicp; | |
104 | struct respQ_msg_t *rsp_msg = (struct respQ_msg_t *) skb->data; | |
105 | struct iwch_cq *chp; | |
106 | struct iwch_qp *qhp; | |
107 | u32 cqid = RSPQ_CQID(rsp_msg); | |
108 | ||
109 | rnicp = (struct iwch_dev *) rdev_p->ulp; | |
110 | spin_lock(&rnicp->lock); | |
111 | chp = get_chp(rnicp, cqid); | |
112 | qhp = get_qhp(rnicp, CQE_QPID(rsp_msg->cqe)); | |
113 | if (!chp || !qhp) { | |
114 | printk(KERN_ERR MOD "BAD AE cqid 0x%x qpid 0x%x opcode %d " | |
115 | "status 0x%x type %d wrid.hi 0x%x wrid.lo 0x%x \n", | |
116 | cqid, CQE_QPID(rsp_msg->cqe), | |
117 | CQE_OPCODE(rsp_msg->cqe), CQE_STATUS(rsp_msg->cqe), | |
118 | CQE_TYPE(rsp_msg->cqe), CQE_WRID_HI(rsp_msg->cqe), | |
119 | CQE_WRID_LOW(rsp_msg->cqe)); | |
120 | spin_unlock(&rnicp->lock); | |
121 | goto out; | |
122 | } | |
123 | iwch_qp_add_ref(&qhp->ibqp); | |
124 | atomic_inc(&chp->refcnt); | |
125 | spin_unlock(&rnicp->lock); | |
126 | ||
127 | /* | |
128 | * 1) completion of our sending a TERMINATE. | |
129 | * 2) incoming TERMINATE message. | |
130 | */ | |
131 | if ((CQE_OPCODE(rsp_msg->cqe) == T3_TERMINATE) && | |
132 | (CQE_STATUS(rsp_msg->cqe) == 0)) { | |
133 | if (SQ_TYPE(rsp_msg->cqe)) { | |
134 | PDBG("%s QPID 0x%x ep %p disconnecting\n", | |
33718363 | 135 | __func__, qhp->wq.qpid, qhp->ep); |
b038ced7 SW |
136 | iwch_ep_disconnect(qhp->ep, 0, GFP_ATOMIC); |
137 | } else { | |
33718363 | 138 | PDBG("%s post REQ_ERR AE QPID 0x%x\n", __func__, |
b038ced7 SW |
139 | qhp->wq.qpid); |
140 | post_qp_event(rnicp, chp, rsp_msg, | |
141 | IB_EVENT_QP_REQ_ERR, 0); | |
142 | iwch_ep_disconnect(qhp->ep, 0, GFP_ATOMIC); | |
143 | } | |
144 | goto done; | |
145 | } | |
146 | ||
147 | /* Bad incoming Read request */ | |
148 | if (SQ_TYPE(rsp_msg->cqe) && | |
149 | (CQE_OPCODE(rsp_msg->cqe) == T3_READ_RESP)) { | |
150 | post_qp_event(rnicp, chp, rsp_msg, IB_EVENT_QP_REQ_ERR, 1); | |
151 | goto done; | |
152 | } | |
153 | ||
154 | /* Bad incoming write */ | |
155 | if (RQ_TYPE(rsp_msg->cqe) && | |
156 | (CQE_OPCODE(rsp_msg->cqe) == T3_RDMA_WRITE)) { | |
157 | post_qp_event(rnicp, chp, rsp_msg, IB_EVENT_QP_REQ_ERR, 1); | |
158 | goto done; | |
159 | } | |
160 | ||
161 | switch (CQE_STATUS(rsp_msg->cqe)) { | |
162 | ||
163 | /* Completion Events */ | |
164 | case TPT_ERR_SUCCESS: | |
165 | ||
166 | /* | |
167 | * Confirm the destination entry if this is a RECV completion. | |
168 | */ | |
169 | if (qhp->ep && SQ_TYPE(rsp_msg->cqe)) | |
170 | dst_confirm(qhp->ep->dst); | |
171 | (*chp->ibcq.comp_handler)(&chp->ibcq, chp->ibcq.cq_context); | |
172 | break; | |
173 | ||
174 | case TPT_ERR_STAG: | |
175 | case TPT_ERR_PDID: | |
176 | case TPT_ERR_QPID: | |
177 | case TPT_ERR_ACCESS: | |
178 | case TPT_ERR_WRAP: | |
179 | case TPT_ERR_BOUND: | |
180 | case TPT_ERR_INVALIDATE_SHARED_MR: | |
181 | case TPT_ERR_INVALIDATE_MR_WITH_MW_BOUND: | |
b038ced7 SW |
182 | (*chp->ibcq.comp_handler)(&chp->ibcq, chp->ibcq.cq_context); |
183 | post_qp_event(rnicp, chp, rsp_msg, IB_EVENT_QP_ACCESS_ERR, 1); | |
184 | break; | |
185 | ||
186 | /* Device Fatal Errors */ | |
187 | case TPT_ERR_ECC: | |
188 | case TPT_ERR_ECC_PSTAG: | |
189 | case TPT_ERR_INTERNAL_ERR: | |
190 | post_qp_event(rnicp, chp, rsp_msg, IB_EVENT_DEVICE_FATAL, 1); | |
191 | break; | |
192 | ||
193 | /* QP Fatal Errors */ | |
194 | case TPT_ERR_OUT_OF_RQE: | |
195 | case TPT_ERR_PBL_ADDR_BOUND: | |
196 | case TPT_ERR_CRC: | |
197 | case TPT_ERR_MARKER: | |
198 | case TPT_ERR_PDU_LEN_ERR: | |
199 | case TPT_ERR_DDP_VERSION: | |
200 | case TPT_ERR_RDMA_VERSION: | |
201 | case TPT_ERR_OPCODE: | |
202 | case TPT_ERR_DDP_QUEUE_NUM: | |
203 | case TPT_ERR_MSN: | |
204 | case TPT_ERR_TBIT: | |
205 | case TPT_ERR_MO: | |
206 | case TPT_ERR_MSN_GAP: | |
207 | case TPT_ERR_MSN_RANGE: | |
208 | case TPT_ERR_RQE_ADDR_BOUND: | |
209 | case TPT_ERR_IRD_OVERFLOW: | |
210 | post_qp_event(rnicp, chp, rsp_msg, IB_EVENT_QP_FATAL, 1); | |
211 | break; | |
212 | ||
213 | default: | |
214 | printk(KERN_ERR MOD "Unknown T3 status 0x%x QPID 0x%x\n", | |
215 | CQE_STATUS(rsp_msg->cqe), qhp->wq.qpid); | |
216 | post_qp_event(rnicp, chp, rsp_msg, IB_EVENT_QP_FATAL, 1); | |
217 | break; | |
218 | } | |
219 | done: | |
220 | if (atomic_dec_and_test(&chp->refcnt)) | |
221 | wake_up(&chp->wait); | |
222 | iwch_qp_rem_ref(&qhp->ibqp); | |
223 | out: | |
224 | dev_kfree_skb_irq(skb); | |
225 | } |