2 * Copyright (c) 2009-2010 Chelsio, Inc. All rights reserved.
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:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
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.
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
32 #include <linux/slab.h>
33 #include <linux/mman.h>
38 static void post_qp_event(struct c4iw_dev *dev, struct c4iw_cq *chp,
40 struct t4_cqe *err_cqe,
41 enum ib_event_type ib_event)
43 struct ib_event event;
44 struct c4iw_qp_attributes attrs;
47 printk(KERN_ERR MOD "AE qpid 0x%x opcode %d status 0x%x "
48 "type %d wrid.hi 0x%x wrid.lo 0x%x\n",
49 CQE_QPID(err_cqe), CQE_OPCODE(err_cqe),
50 CQE_STATUS(err_cqe), CQE_TYPE(err_cqe),
51 CQE_WRID_HI(err_cqe), CQE_WRID_LOW(err_cqe));
53 if (qhp->attr.state == C4IW_QP_STATE_RTS) {
54 attrs.next_state = C4IW_QP_STATE_TERMINATE;
55 c4iw_modify_qp(qhp->rhp, qhp, C4IW_QP_ATTR_NEXT_STATE,
59 event.event = ib_event;
60 event.device = chp->ibcq.device;
61 if (ib_event == IB_EVENT_CQ_ERR)
62 event.element.cq = &chp->ibcq;
64 event.element.qp = &qhp->ibqp;
65 if (qhp->ibqp.event_handler)
66 (*qhp->ibqp.event_handler)(&event, qhp->ibqp.qp_context);
68 spin_lock_irqsave(&chp->comp_handler_lock, flag);
69 (*chp->ibcq.comp_handler)(&chp->ibcq, chp->ibcq.cq_context);
70 spin_unlock_irqrestore(&chp->comp_handler_lock, flag);
73 void c4iw_ev_dispatch(struct c4iw_dev *dev, struct t4_cqe *err_cqe)
79 spin_lock_irq(&dev->lock);
80 qhp = get_qhp(dev, CQE_QPID(err_cqe));
82 printk(KERN_ERR MOD "BAD AE qpid 0x%x opcode %d "
83 "status 0x%x type %d wrid.hi 0x%x wrid.lo 0x%x\n",
85 CQE_OPCODE(err_cqe), CQE_STATUS(err_cqe),
86 CQE_TYPE(err_cqe), CQE_WRID_HI(err_cqe),
87 CQE_WRID_LOW(err_cqe));
88 spin_unlock_irq(&dev->lock);
96 chp = get_chp(dev, cqid);
98 printk(KERN_ERR MOD "BAD AE cqid 0x%x qpid 0x%x opcode %d "
99 "status 0x%x type %d wrid.hi 0x%x wrid.lo 0x%x\n",
100 cqid, CQE_QPID(err_cqe),
101 CQE_OPCODE(err_cqe), CQE_STATUS(err_cqe),
102 CQE_TYPE(err_cqe), CQE_WRID_HI(err_cqe),
103 CQE_WRID_LOW(err_cqe));
104 spin_unlock_irq(&dev->lock);
108 c4iw_qp_add_ref(&qhp->ibqp);
109 atomic_inc(&chp->refcnt);
110 spin_unlock_irq(&dev->lock);
112 /* Bad incoming write */
113 if (RQ_TYPE(err_cqe) &&
114 (CQE_OPCODE(err_cqe) == FW_RI_RDMA_WRITE)) {
115 post_qp_event(dev, chp, qhp, err_cqe, IB_EVENT_QP_REQ_ERR);
119 switch (CQE_STATUS(err_cqe)) {
121 /* Completion Events */
123 printk(KERN_ERR MOD "AE with status 0!\n");
132 case T4_ERR_INVALIDATE_SHARED_MR:
133 case T4_ERR_INVALIDATE_MR_WITH_MW_BOUND:
134 post_qp_event(dev, chp, qhp, err_cqe, IB_EVENT_QP_ACCESS_ERR);
137 /* Device Fatal Errors */
139 case T4_ERR_ECC_PSTAG:
140 case T4_ERR_INTERNAL_ERR:
141 post_qp_event(dev, chp, qhp, err_cqe, IB_EVENT_DEVICE_FATAL);
144 /* QP Fatal Errors */
145 case T4_ERR_OUT_OF_RQE:
146 case T4_ERR_PBL_ADDR_BOUND:
149 case T4_ERR_PDU_LEN_ERR:
150 case T4_ERR_DDP_VERSION:
151 case T4_ERR_RDMA_VERSION:
153 case T4_ERR_DDP_QUEUE_NUM:
158 case T4_ERR_MSN_RANGE:
159 case T4_ERR_RQE_ADDR_BOUND:
160 case T4_ERR_IRD_OVERFLOW:
161 post_qp_event(dev, chp, qhp, err_cqe, IB_EVENT_QP_FATAL);
165 printk(KERN_ERR MOD "Unknown T4 status 0x%x QPID 0x%x\n",
166 CQE_STATUS(err_cqe), qhp->wq.sq.qid);
167 post_qp_event(dev, chp, qhp, err_cqe, IB_EVENT_QP_FATAL);
171 if (atomic_dec_and_test(&chp->refcnt))
173 c4iw_qp_rem_ref(&qhp->ibqp);
178 int c4iw_ev_handler(struct c4iw_dev *dev, u32 qid)
183 chp = get_chp(dev, qid);
185 spin_lock_irqsave(&chp->comp_handler_lock, flag);
186 (*chp->ibcq.comp_handler)(&chp->ibcq, chp->ibcq.cq_context);
187 spin_unlock_irqrestore(&chp->comp_handler_lock, flag);
189 PDBG("%s unknown cqid 0x%x\n", __func__, qid);