2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2009-2013 Chelsio, Inc. All rights reserved.
6 * This software is available to you under a choice of one of two
7 * licenses. You may choose to be licensed under the terms of the GNU
8 * General Public License (GPL) Version 2, available from the file
9 * COPYING in the main directory of this source tree, or the
10 * OpenIB.org BSD license below:
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
16 * - Redistributions of source code must retain the above
17 * copyright notice, this list of conditions and the following
20 * - Redistributions in binary form must reproduce the above
21 * copyright notice, this list of conditions and the following
22 * disclaimer in the documentation and/or other materials
23 * provided with the distribution.
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
34 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD$");
40 #include <linux/slab.h>
44 static void post_qp_event(struct c4iw_dev *dev, struct c4iw_cq *chp,
46 struct t4_cqe *err_cqe,
47 enum ib_event_type ib_event)
49 struct ib_event event;
50 struct c4iw_qp_attributes attrs;
53 if ((qhp->attr.state == C4IW_QP_STATE_ERROR) ||
54 (qhp->attr.state == C4IW_QP_STATE_TERMINATE)) {
55 CTR4(KTR_IW_CXGBE, "%s AE received after RTS - "
56 "qp state %d qpid 0x%x status 0x%x", __func__,
57 qhp->attr.state, qhp->wq.sq.qid, CQE_STATUS(err_cqe));
61 printf("AE qpid 0x%x opcode %d status 0x%x "
62 "type %d wrid.hi 0x%x wrid.lo 0x%x\n",
63 CQE_QPID(err_cqe), CQE_OPCODE(err_cqe),
64 CQE_STATUS(err_cqe), CQE_TYPE(err_cqe),
65 CQE_WRID_HI(err_cqe), CQE_WRID_LOW(err_cqe));
67 if (qhp->attr.state == C4IW_QP_STATE_RTS) {
68 attrs.next_state = C4IW_QP_STATE_TERMINATE;
69 c4iw_modify_qp(qhp->rhp, qhp, C4IW_QP_ATTR_NEXT_STATE,
73 event.event = ib_event;
74 event.device = chp->ibcq.device;
75 if (ib_event == IB_EVENT_CQ_ERR)
76 event.element.cq = &chp->ibcq;
78 event.element.qp = &qhp->ibqp;
79 if (qhp->ibqp.event_handler)
80 (*qhp->ibqp.event_handler)(&event, qhp->ibqp.qp_context);
82 spin_lock_irqsave(&chp->comp_handler_lock, flag);
83 (*chp->ibcq.comp_handler)(&chp->ibcq, chp->ibcq.cq_context);
84 spin_unlock_irqrestore(&chp->comp_handler_lock, flag);
87 void c4iw_ev_dispatch(struct c4iw_dev *dev, struct t4_cqe *err_cqe)
93 spin_lock_irq(&dev->lock);
94 qhp = get_qhp(dev, CQE_QPID(err_cqe));
96 printf("BAD AE qpid 0x%x opcode %d "
97 "status 0x%x type %d wrid.hi 0x%x wrid.lo 0x%x\n",
99 CQE_OPCODE(err_cqe), CQE_STATUS(err_cqe),
100 CQE_TYPE(err_cqe), CQE_WRID_HI(err_cqe),
101 CQE_WRID_LOW(err_cqe));
102 spin_unlock_irq(&dev->lock);
106 if (SQ_TYPE(err_cqe))
107 cqid = qhp->attr.scq;
109 cqid = qhp->attr.rcq;
110 chp = get_chp(dev, cqid);
112 printf("BAD AE cqid 0x%x qpid 0x%x opcode %d "
113 "status 0x%x type %d wrid.hi 0x%x wrid.lo 0x%x\n",
114 cqid, CQE_QPID(err_cqe),
115 CQE_OPCODE(err_cqe), CQE_STATUS(err_cqe),
116 CQE_TYPE(err_cqe), CQE_WRID_HI(err_cqe),
117 CQE_WRID_LOW(err_cqe));
118 spin_unlock_irq(&dev->lock);
122 c4iw_qp_add_ref(&qhp->ibqp);
123 atomic_inc(&chp->refcnt);
124 spin_unlock_irq(&dev->lock);
126 /* Bad incoming write */
127 if (RQ_TYPE(err_cqe) &&
128 (CQE_OPCODE(err_cqe) == FW_RI_RDMA_WRITE)) {
129 post_qp_event(dev, chp, qhp, err_cqe, IB_EVENT_QP_REQ_ERR);
133 switch (CQE_STATUS(err_cqe)) {
135 /* Completion Events */
137 printf(KERN_ERR MOD "AE with status 0!\n");
146 case T4_ERR_INVALIDATE_SHARED_MR:
147 case T4_ERR_INVALIDATE_MR_WITH_MW_BOUND:
148 post_qp_event(dev, chp, qhp, err_cqe, IB_EVENT_QP_ACCESS_ERR);
151 /* Device Fatal Errors */
153 case T4_ERR_ECC_PSTAG:
154 case T4_ERR_INTERNAL_ERR:
155 post_qp_event(dev, chp, qhp, err_cqe, IB_EVENT_DEVICE_FATAL);
158 /* QP Fatal Errors */
159 case T4_ERR_OUT_OF_RQE:
160 case T4_ERR_PBL_ADDR_BOUND:
163 case T4_ERR_PDU_LEN_ERR:
164 case T4_ERR_DDP_VERSION:
165 case T4_ERR_RDMA_VERSION:
167 case T4_ERR_DDP_QUEUE_NUM:
172 case T4_ERR_MSN_RANGE:
173 case T4_ERR_RQE_ADDR_BOUND:
174 case T4_ERR_IRD_OVERFLOW:
175 post_qp_event(dev, chp, qhp, err_cqe, IB_EVENT_QP_FATAL);
179 printf("Unknown T4 status 0x%x QPID 0x%x\n",
180 CQE_STATUS(err_cqe), qhp->wq.sq.qid);
181 post_qp_event(dev, chp, qhp, err_cqe, IB_EVENT_QP_FATAL);
185 if (atomic_dec_and_test(&chp->refcnt))
187 c4iw_qp_rem_ref(&qhp->ibqp);
192 int c4iw_ev_handler(struct sge_iq *iq, const struct rsp_ctrl *rc)
194 struct c4iw_dev *dev = iq->adapter->iwarp_softc;
195 u32 qid = be32_to_cpu(rc->pldbuflen_qid);
199 spin_lock_irqsave(&dev->lock, flag);
200 chp = get_chp(dev, qid);
202 atomic_inc(&chp->refcnt);
203 spin_unlock_irqrestore(&dev->lock, flag);
205 spin_lock_irqsave(&chp->comp_handler_lock, flag);
206 (*chp->ibcq.comp_handler)(&chp->ibcq, chp->ibcq.cq_context);
207 spin_unlock_irqrestore(&chp->comp_handler_lock, flag);
208 if (atomic_dec_and_test(&chp->refcnt))
211 CTR2(KTR_IW_CXGBE, "%s unknown cqid 0x%x", __func__, qid);
212 spin_unlock_irqrestore(&dev->lock, flag);