/*
* Get one cq entry from c4iw and map it to openib.
*
* Returns:
* 0 cqe returned
* -ENODATA EMPTY;
* -EAGAIN caller must try again
* any other -errno fatal error
*/
static int c4iw_poll_cq_one(struct c4iw_cq *chp, struct ib_wc *wc)
{
struct c4iw_srq *srq = NULL;
struct c4iw_qp *qhp = NULL;
struct t4_cqe *rd_cqe;
int ret;
ret = t4_next_cqe(&chp->cq, &rd_cqe);
if (ret)
return ret;
qhp = get_qhp(chp->rhp, CQE_QPID(rd_cqe));
if (qhp) {
spin_lock(&qhp->lock);
srq = qhp->srq;
if (srq)
spin_lock(&srq->lock);
ret = __c4iw_poll_cq_one(chp, qhp, wc, srq);
spin_unlock(&qhp->lock);
if (srq)
spin_unlock(&srq->lock);
} else {
ret = __c4iw_poll_cq_one(chp, NULL, wc, NULL);
}
return ret;
}
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);
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);
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);
}
if (atomic_dec_and_test(&qhp->refcnt))
wake_up(&qhp->wait);
}
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);
<<<<<<< HEAD
/*
* Get one cq entry from c4iw and map it to openib.
*
* Returns:
* 0 cqe returned
* -ENODATA EMPTY;
* -EAGAIN caller must try again
* any other -errno fatal error
*/
static int c4iw_poll_cq_one(struct c4iw_cq *chp, struct ib_wc *wc)
{
struct c4iw_qp *qhp = NULL;
struct t4_cqe cqe = {0, 0}, *rd_cqe;
struct t4_wq *wq;
u32 credit = 0;
u8 cqe_flushed;
u64 cookie = 0;
int ret;
ret = t4_next_cqe(&chp->cq, &rd_cqe);
if (ret)
return ret;
qhp = get_qhp(chp->rhp, CQE_QPID(rd_cqe));
if (!qhp)
wq = NULL;
else {
spin_lock(&qhp->lock);
wq = &(qhp->wq);
}
ret = poll_cq(wq, &(chp->cq), &cqe, &cqe_flushed, &cookie, &credit);
if (ret)
goto out;
wc->wr_id = cookie;
wc->qp = &qhp->ibqp;
wc->vendor_err = CQE_STATUS(&cqe);
wc->wc_flags = 0;
PDBG("%s qpid 0x%x type %d opcode %d status 0x%x len %u wrid hi 0x%x "
"lo 0x%x cookie 0x%llx\n", __func__, CQE_QPID(&cqe),
CQE_TYPE(&cqe), CQE_OPCODE(&cqe), CQE_STATUS(&cqe), CQE_LEN(&cqe),
CQE_WRID_HI(&cqe), CQE_WRID_LOW(&cqe), (unsigned long long)cookie);
if (CQE_TYPE(&cqe) == 0) {
if (!CQE_STATUS(&cqe))
wc->byte_len = CQE_LEN(&cqe);
else
wc->byte_len = 0;
wc->opcode = IB_WC_RECV;
if (CQE_OPCODE(&cqe) == FW_RI_SEND_WITH_INV ||
CQE_OPCODE(&cqe) == FW_RI_SEND_WITH_SE_INV) {
wc->ex.invalidate_rkey = CQE_WRID_STAG(&cqe);
wc->wc_flags |= IB_WC_WITH_INVALIDATE;
}
} else {
switch (CQE_OPCODE(&cqe)) {
case FW_RI_RDMA_WRITE:
wc->opcode = IB_WC_RDMA_WRITE;
break;
case FW_RI_READ_REQ:
wc->opcode = IB_WC_RDMA_READ;
wc->byte_len = CQE_LEN(&cqe);
break;
case FW_RI_SEND_WITH_INV:
case FW_RI_SEND_WITH_SE_INV:
wc->opcode = IB_WC_SEND;
wc->wc_flags |= IB_WC_WITH_INVALIDATE;
break;
case FW_RI_SEND:
case FW_RI_SEND_WITH_SE:
wc->opcode = IB_WC_SEND;
break;
case FW_RI_BIND_MW:
wc->opcode = IB_WC_BIND_MW;
break;
case FW_RI_LOCAL_INV:
wc->opcode = IB_WC_LOCAL_INV;
break;
case FW_RI_FAST_REGISTER:
wc->opcode = IB_WC_FAST_REG_MR;
break;
default:
printk(KERN_ERR MOD "Unexpected opcode %d "
"in the CQE received for QPID=0x%0x\n",
CQE_OPCODE(&cqe), CQE_QPID(&cqe));
ret = -EINVAL;
goto out;
}
}
if (cqe_flushed)
wc->status = IB_WC_WR_FLUSH_ERR;
else {
switch (CQE_STATUS(&cqe)) {
case T4_ERR_SUCCESS:
wc->status = IB_WC_SUCCESS;
break;
case T4_ERR_STAG:
wc->status = IB_WC_LOC_ACCESS_ERR;
break;
case T4_ERR_PDID:
wc->status = IB_WC_LOC_PROT_ERR;
break;
case T4_ERR_QPID:
case T4_ERR_ACCESS:
wc->status = IB_WC_LOC_ACCESS_ERR;
break;
case T4_ERR_WRAP:
wc->status = IB_WC_GENERAL_ERR;
break;
case T4_ERR_BOUND:
wc->status = IB_WC_LOC_LEN_ERR;
break;
case T4_ERR_INVALIDATE_SHARED_MR:
case T4_ERR_INVALIDATE_MR_WITH_MW_BOUND:
wc->status = IB_WC_MW_BIND_ERR;
break;
case T4_ERR_CRC:
case T4_ERR_MARKER:
case T4_ERR_PDU_LEN_ERR:
case T4_ERR_OUT_OF_RQE:
case T4_ERR_DDP_VERSION:
case T4_ERR_RDMA_VERSION:
case T4_ERR_DDP_QUEUE_NUM:
case T4_ERR_MSN:
case T4_ERR_TBIT:
case T4_ERR_MO:
case T4_ERR_MSN_RANGE:
case T4_ERR_IRD_OVERFLOW:
case T4_ERR_OPCODE:
case T4_ERR_INTERNAL_ERR:
wc->status = IB_WC_FATAL_ERR;
break;
case T4_ERR_SWFLUSH:
wc->status = IB_WC_WR_FLUSH_ERR;
break;
default:
printk(KERN_ERR MOD
"Unexpected cqe_status 0x%x for QPID=0x%0x\n",
CQE_STATUS(&cqe), CQE_QPID(&cqe));
ret = -EINVAL;
}
}
out:
if (wq)
spin_unlock(&qhp->lock);
return ret;
}
void c4iw_ev_dispatch(struct c4iw_dev *dev, struct t4_cqe *err_cqe)
{
struct c4iw_cq *chp;
struct c4iw_qp *qhp;
u32 cqid;
spin_lock(&dev->lock);
qhp = get_qhp(dev, CQE_QPID(err_cqe));
if (!qhp) {
printk(KERN_ERR MOD "BAD AE qpid 0x%x opcode %d "
"status 0x%x type %d wrid.hi 0x%x wrid.lo 0x%x\n",
CQE_QPID(err_cqe),
CQE_OPCODE(err_cqe), CQE_STATUS(err_cqe),
CQE_TYPE(err_cqe), CQE_WRID_HI(err_cqe),
CQE_WRID_LOW(err_cqe));
spin_unlock(&dev->lock);
goto out;
}
if (SQ_TYPE(err_cqe))
cqid = qhp->attr.scq;
else
cqid = qhp->attr.rcq;
chp = get_chp(dev, cqid);
if (!chp) {
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(err_cqe),
CQE_OPCODE(err_cqe), CQE_STATUS(err_cqe),
CQE_TYPE(err_cqe), CQE_WRID_HI(err_cqe),
CQE_WRID_LOW(err_cqe));
spin_unlock(&dev->lock);
goto out;
}
c4iw_qp_add_ref(&qhp->ibqp);
atomic_inc(&chp->refcnt);
spin_unlock(&dev->lock);
/* Bad incoming write */
if (RQ_TYPE(err_cqe) &&
(CQE_OPCODE(err_cqe) == FW_RI_RDMA_WRITE)) {
post_qp_event(dev, chp, qhp, err_cqe, IB_EVENT_QP_REQ_ERR);
goto done;
}
switch (CQE_STATUS(err_cqe)) {
/* Completion Events */
case T4_ERR_SUCCESS:
printk(KERN_ERR MOD "AE with status 0!\n");
break;
case T4_ERR_STAG:
case T4_ERR_PDID:
case T4_ERR_QPID:
case T4_ERR_ACCESS:
case T4_ERR_WRAP:
case T4_ERR_BOUND:
case T4_ERR_INVALIDATE_SHARED_MR:
case T4_ERR_INVALIDATE_MR_WITH_MW_BOUND:
post_qp_event(dev, chp, qhp, err_cqe, IB_EVENT_QP_ACCESS_ERR);
break;
/* Device Fatal Errors */
case T4_ERR_ECC:
case T4_ERR_ECC_PSTAG:
case T4_ERR_INTERNAL_ERR:
post_qp_event(dev, chp, qhp, err_cqe, IB_EVENT_DEVICE_FATAL);
break;
/* QP Fatal Errors */
case T4_ERR_OUT_OF_RQE:
case T4_ERR_PBL_ADDR_BOUND:
case T4_ERR_CRC:
case T4_ERR_MARKER:
case T4_ERR_PDU_LEN_ERR:
case T4_ERR_DDP_VERSION:
case T4_ERR_RDMA_VERSION:
case T4_ERR_OPCODE:
case T4_ERR_DDP_QUEUE_NUM:
case T4_ERR_MSN:
case T4_ERR_TBIT:
case T4_ERR_MO:
case T4_ERR_MSN_GAP:
case T4_ERR_MSN_RANGE:
case T4_ERR_RQE_ADDR_BOUND:
case T4_ERR_IRD_OVERFLOW:
post_qp_event(dev, chp, qhp, err_cqe, IB_EVENT_QP_FATAL);
break;
default:
printk(KERN_ERR MOD "Unknown T4 status 0x%x QPID 0x%x\n",
CQE_STATUS(err_cqe), qhp->wq.sq.qid);
post_qp_event(dev, chp, qhp, err_cqe, IB_EVENT_QP_FATAL);
break;
}
done:
if (atomic_dec_and_test(&chp->refcnt))
wake_up(&chp->wait);
c4iw_qp_rem_ref(&qhp->ibqp);
out:
return;
}
/*
* Get one cq entry from cxio and map it to openib.
*
* Returns:
* 0 cqe returned
* -ENOBUFS EMPTY;
* -EAGAIN caller must try again
* any other neg errno fatal error
*/
static int iwch_poll_cq_one(struct iwch_dev *rhp, struct iwch_cq *chp,
struct ib_wc *wc)
{
struct iwch_qp *qhp = NULL;
struct t3_cqe cqe, *rd_cqe;
struct t3_wq *wq;
u32 credit = 0;
u8 cqe_flushed;
u64 cookie;
int ret = 1;
rd_cqe = cxio_next_cqe(&chp->cq);
if (!rd_cqe)
return 0;
qhp = get_qhp(rhp, CQE_QPID(*rd_cqe));
if (!qhp)
wq = NULL;
else {
mtx_lock(&qhp->lock);
wq = &(qhp->wq);
}
ret = cxio_poll_cq(wq, &(chp->cq), &cqe, &cqe_flushed, &cookie,
&credit);
if (t3a_device(chp->rhp) && credit) {
CTR3(KTR_IW_CXGB, "%s updating %d cq credits on id %d", __FUNCTION__,
credit, chp->cq.cqid);
cxio_hal_cq_op(&rhp->rdev, &chp->cq, CQ_CREDIT_UPDATE, credit);
}
if (ret) {
ret = -EAGAIN;
goto out;
}
ret = 1;
wc->wr_id = cookie;
wc->qp = &qhp->ibqp;
wc->vendor_err = CQE_STATUS(cqe);
CTR4(KTR_IW_CXGB, "iwch_poll_cq_one qpid 0x%x type %d opcode %d status 0x%x",
CQE_QPID(cqe), CQE_TYPE(cqe),
CQE_OPCODE(cqe), CQE_STATUS(cqe));
CTR3(KTR_IW_CXGB, "wrid hi 0x%x lo 0x%x cookie 0x%llx",
CQE_WRID_HI(cqe), CQE_WRID_LOW(cqe), (unsigned long long) cookie);
if (CQE_TYPE(cqe) == 0) {
if (!CQE_STATUS(cqe))
wc->byte_len = CQE_LEN(cqe);
else
wc->byte_len = 0;
wc->opcode = IB_WC_RECV;
} else {
switch (CQE_OPCODE(cqe)) {
case T3_RDMA_WRITE:
wc->opcode = IB_WC_RDMA_WRITE;
break;
case T3_READ_REQ:
wc->opcode = IB_WC_RDMA_READ;
wc->byte_len = CQE_LEN(cqe);
break;
case T3_SEND:
case T3_SEND_WITH_SE:
wc->opcode = IB_WC_SEND;
break;
case T3_BIND_MW:
wc->opcode = IB_WC_BIND_MW;
break;
/* these aren't supported yet */
case T3_SEND_WITH_INV:
case T3_SEND_WITH_SE_INV:
case T3_LOCAL_INV:
case T3_FAST_REGISTER:
default:
log(LOG_ERR, "Unexpected opcode %d "
"in the CQE received for QPID=0x%0x\n",
CQE_OPCODE(cqe), CQE_QPID(cqe));
ret = -EINVAL;
goto out;
}
}
if (cqe_flushed)
wc->status = IB_WC_WR_FLUSH_ERR;
else {
switch (CQE_STATUS(cqe)) {
case TPT_ERR_SUCCESS:
wc->status = IB_WC_SUCCESS;
break;
case TPT_ERR_STAG:
wc->status = IB_WC_LOC_ACCESS_ERR;
break;
case TPT_ERR_PDID:
wc->status = IB_WC_LOC_PROT_ERR;
break;
case TPT_ERR_QPID:
case TPT_ERR_ACCESS:
wc->status = IB_WC_LOC_ACCESS_ERR;
break;
case TPT_ERR_WRAP:
wc->status = IB_WC_GENERAL_ERR;
break;
case TPT_ERR_BOUND:
wc->status = IB_WC_LOC_LEN_ERR;
break;
case TPT_ERR_INVALIDATE_SHARED_MR:
case TPT_ERR_INVALIDATE_MR_WITH_MW_BOUND:
wc->status = IB_WC_MW_BIND_ERR;
break;
case TPT_ERR_CRC:
case TPT_ERR_MARKER:
case TPT_ERR_PDU_LEN_ERR:
case TPT_ERR_OUT_OF_RQE:
case TPT_ERR_DDP_VERSION:
case TPT_ERR_RDMA_VERSION:
case TPT_ERR_DDP_QUEUE_NUM:
case TPT_ERR_MSN:
case TPT_ERR_TBIT:
case TPT_ERR_MO:
case TPT_ERR_MSN_RANGE:
case TPT_ERR_IRD_OVERFLOW:
case TPT_ERR_OPCODE:
wc->status = IB_WC_FATAL_ERR;
break;
case TPT_ERR_SWFLUSH:
wc->status = IB_WC_WR_FLUSH_ERR;
break;
default:
log(LOG_ERR, "Unexpected cqe_status 0x%x for "
"QPID=0x%0x\n", CQE_STATUS(cqe), CQE_QPID(cqe));
ret = -EINVAL;
}
}
out:
if (wq)
mtx_unlock(&qhp->lock);
return ret;
}
/*
* Move all CQEs from the HWCQ into the SWCQ.
* Deal with out-of-order and/or completions that complete
* prior unsignalled WRs.
*/
void c4iw_flush_hw_cq(struct c4iw_cq *chp, struct c4iw_qp *flush_qhp)
{
struct t4_cqe *hw_cqe, *swcqe, read_cqe;
struct c4iw_qp *qhp;
struct t4_swsqe *swsqe;
int ret;
pr_debug("cqid 0x%x\n", chp->cq.cqid);
ret = t4_next_hw_cqe(&chp->cq, &hw_cqe);
/*
* This logic is similar to poll_cq(), but not quite the same
* unfortunately. Need to move pertinent HW CQEs to the SW CQ but
* also do any translation magic that poll_cq() normally does.
*/
while (!ret) {
qhp = get_qhp(chp->rhp, CQE_QPID(hw_cqe));
/*
* drop CQEs with no associated QP
*/
if (qhp == NULL)
goto next_cqe;
if (flush_qhp != qhp) {
spin_lock(&qhp->lock);
if (qhp->wq.flushed == 1)
goto next_cqe;
}
if (CQE_OPCODE(hw_cqe) == FW_RI_TERMINATE)
goto next_cqe;
if (CQE_OPCODE(hw_cqe) == FW_RI_READ_RESP) {
/* If we have reached here because of async
* event or other error, and have egress error
* then drop
*/
if (CQE_TYPE(hw_cqe) == 1)
goto next_cqe;
/* drop peer2peer RTR reads.
*/
if (CQE_WRID_STAG(hw_cqe) == 1)
goto next_cqe;
/*
* Eat completions for unsignaled read WRs.
*/
if (!qhp->wq.sq.oldest_read->signaled) {
advance_oldest_read(&qhp->wq);
goto next_cqe;
}
/*
* Don't write to the HWCQ, create a new read req CQE
* in local memory and move it into the swcq.
*/
create_read_req_cqe(&qhp->wq, hw_cqe, &read_cqe);
hw_cqe = &read_cqe;
advance_oldest_read(&qhp->wq);
}
/* if its a SQ completion, then do the magic to move all the
* unsignaled and now in-order completions into the swcq.
*/
if (SQ_TYPE(hw_cqe)) {
swsqe = &qhp->wq.sq.sw_sq[CQE_WRID_SQ_IDX(hw_cqe)];
swsqe->cqe = *hw_cqe;
swsqe->complete = 1;
flush_completed_wrs(&qhp->wq, &chp->cq);
} else {
swcqe = &chp->cq.sw_queue[chp->cq.sw_pidx];
*swcqe = *hw_cqe;
swcqe->header |= cpu_to_be32(CQE_SWCQE_V(1));
t4_swcq_produce(&chp->cq);
}
next_cqe:
t4_hwcq_consume(&chp->cq);
ret = t4_next_hw_cqe(&chp->cq, &hw_cqe);
if (qhp && flush_qhp != qhp)
spin_unlock(&qhp->lock);
}
}
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);
}
