diff options
Diffstat (limited to 'drivers/infiniband/sw/rxe/rxe_resp.c')
-rw-r--r-- | drivers/infiniband/sw/rxe/rxe_resp.c | 73 |
1 files changed, 38 insertions, 35 deletions
diff --git a/drivers/infiniband/sw/rxe/rxe_resp.c b/drivers/infiniband/sw/rxe/rxe_resp.c index 5bcf07328972..c9dd385ce62e 100644 --- a/drivers/infiniband/sw/rxe/rxe_resp.c +++ b/drivers/infiniband/sw/rxe/rxe_resp.c @@ -307,7 +307,7 @@ static enum resp_states check_op_valid(struct rxe_qp *qp, break; default: - WARN_ON(1); + WARN_ON_ONCE(1); break; } @@ -418,7 +418,7 @@ static enum resp_states check_length(struct rxe_qp *qp, static enum resp_states check_rkey(struct rxe_qp *qp, struct rxe_pkt_info *pkt) { - struct rxe_mem *mem; + struct rxe_mem *mem = NULL; u64 va; u32 rkey; u32 resid; @@ -459,50 +459,50 @@ static enum resp_states check_rkey(struct rxe_qp *qp, mem = lookup_mem(qp->pd, access, rkey, lookup_remote); if (!mem) { state = RESPST_ERR_RKEY_VIOLATION; - goto err1; + goto err; } if (unlikely(mem->state == RXE_MEM_STATE_FREE)) { state = RESPST_ERR_RKEY_VIOLATION; - goto err1; + goto err; } if (mem_check_range(mem, va, resid)) { state = RESPST_ERR_RKEY_VIOLATION; - goto err2; + goto err; } if (pkt->mask & RXE_WRITE_MASK) { if (resid > mtu) { if (pktlen != mtu || bth_pad(pkt)) { state = RESPST_ERR_LENGTH; - goto err2; + goto err; } qp->resp.resid = mtu; } else { if (pktlen != resid) { state = RESPST_ERR_LENGTH; - goto err2; + goto err; } if ((bth_pad(pkt) != (0x3 & (-resid)))) { /* This case may not be exactly that * but nothing else fits. */ state = RESPST_ERR_LENGTH; - goto err2; + goto err; } } } - WARN_ON(qp->resp.mr); + WARN_ON_ONCE(qp->resp.mr); qp->resp.mr = mem; return RESPST_EXECUTE; -err2: - rxe_drop_ref(mem); -err1: +err: + if (mem) + rxe_drop_ref(mem); return state; } @@ -608,7 +608,7 @@ static struct sk_buff *prepare_ack_packet(struct rxe_qp *qp, pad = (-payload) & 0x3; paylen = rxe_opcode[opcode].length + payload + pad + RXE_ICRC_SIZE; - skb = rxe->ifc_ops->init_packet(rxe, &qp->pri_av, paylen, ack); + skb = rxe_init_packet(rxe, &qp->pri_av, paylen, ack); if (!skb) return NULL; @@ -637,7 +637,7 @@ static struct sk_buff *prepare_ack_packet(struct rxe_qp *qp, if (ack->mask & RXE_ATMACK_MASK) atmack_set_orig(ack, qp->resp.atomic_orig); - err = rxe->ifc_ops->prepare(rxe, ack, skb, &crc); + err = rxe_prepare(rxe, ack, skb, &crc); if (err) { kfree_skb(skb); return NULL; @@ -808,12 +808,10 @@ static enum resp_states execute(struct rxe_qp *qp, struct rxe_pkt_info *pkt) err = process_atomic(qp, pkt); if (err) return err; - } else + } else { /* Unreachable */ - WARN_ON(1); - - /* We successfully processed this new request. */ - qp->resp.msn++; + WARN_ON_ONCE(1); + } /* next expected psn, read handles this separately */ qp->resp.psn = (pkt->psn + 1) & BTH_PSN_MASK; @@ -821,9 +819,11 @@ static enum resp_states execute(struct rxe_qp *qp, struct rxe_pkt_info *pkt) qp->resp.opcode = pkt->opcode; qp->resp.status = IB_WC_SUCCESS; - if (pkt->mask & RXE_COMP_MASK) + if (pkt->mask & RXE_COMP_MASK) { + /* We successfully processed this new request. */ + qp->resp.msn++; return RESPST_COMPLETE; - else if (qp_type(qp) == IB_QPT_RC) + } else if (qp_type(qp) == IB_QPT_RC) return RESPST_ACKNOWLEDGE; else return RESPST_CLEANUP; @@ -906,6 +906,7 @@ static enum resp_states do_complete(struct rxe_qp *qp, return RESPST_ERROR; } rmr->state = RXE_MEM_STATE_FREE; + rxe_drop_ref(rmr); } wc->qp = &qp->ibqp; @@ -1206,6 +1207,19 @@ static enum resp_states do_class_d1e_error(struct rxe_qp *qp) } } +void rxe_drain_req_pkts(struct rxe_qp *qp, bool notify) +{ + struct sk_buff *skb; + + while ((skb = skb_dequeue(&qp->req_pkts))) { + rxe_drop_ref(qp); + kfree_skb(skb); + } + + while (!qp->srq && qp->rq.queue && queue_head(qp->rq.queue)) + advance_consumer(qp->rq.queue); +} + int rxe_responder(void *arg) { struct rxe_qp *qp = (struct rxe_qp *)arg; @@ -1373,21 +1387,10 @@ int rxe_responder(void *arg) goto exit; - case RESPST_RESET: { - struct sk_buff *skb; - - while ((skb = skb_dequeue(&qp->req_pkts))) { - rxe_drop_ref(qp); - kfree_skb(skb); - } - - while (!qp->srq && qp->rq.queue && - queue_head(qp->rq.queue)) - advance_consumer(qp->rq.queue); - + case RESPST_RESET: + rxe_drain_req_pkts(qp, false); qp->resp.wqe = NULL; goto exit; - } case RESPST_ERROR: qp->resp.goto_error = 0; @@ -1396,7 +1399,7 @@ int rxe_responder(void *arg) goto exit; default: - WARN_ON(1); + WARN_ON_ONCE(1); } } |