static void iser_cq_tasklet_fn(unsigned long data) { struct iser_device *device = (struct iser_device *)data; struct ib_cq *cq = device->cq; struct ib_wc wc; struct iser_desc *desc; unsigned long xfer_len; while (ib_poll_cq(cq, 1, &wc) == 1) { desc = (struct iser_desc *) (unsigned long) wc.wr_id; BUG_ON(desc == NULL); if (wc.status == IB_WC_SUCCESS) { if (desc->type == ISCSI_RX) { xfer_len = (unsigned long)wc.byte_len; iser_rcv_completion(desc, xfer_len); } else iser_snd_completion(desc); } else { iser_err("comp w. error op %d status %d\n",desc->type,wc.status); iser_handle_comp_error(desc); } } ib_req_notify_cq(cq, IB_CQ_NEXT_COMP); }
static void iser_cq_tasklet_fn(unsigned long data) { struct iser_device *device = (struct iser_device *)data; struct ib_cq *cq = device->cq; struct ib_wc wc; struct iser_desc *desc; unsigned long xfer_len; while (ib_poll_cq(cq, 1, &wc) == 1) { desc = (struct iser_desc *) (unsigned long) wc.wr_id; BUG_ON(desc == NULL); if (wc.status == IB_WC_SUCCESS) { if (desc->type == ISCSI_RX) { xfer_len = (unsigned long)wc.byte_len; iser_rcv_completion(desc, xfer_len); } else /* type == ISCSI_TX_CONTROL/SCSI_CMD/DOUT */ iser_snd_completion(desc); } else { iser_err("comp w. error op %d status %d\n",desc->type,wc.status); iser_handle_comp_error(desc); } } /* #warning "it is assumed here that arming CQ only once its empty" * * " would not cause interrupts to be missed" */ ib_req_notify_cq(cq, IB_CQ_NEXT_COMP); }
static void iser_cq_tasklet_fn(unsigned long data) { struct iser_device *device = (struct iser_device *)data; struct ib_cq *cq = device->rx_cq; struct ib_wc wc; struct iser_rx_desc *desc; unsigned long xfer_len; struct iser_conn *ib_conn; int completed_tx, completed_rx; completed_tx = completed_rx = 0; while (ib_poll_cq(cq, 1, &wc) == 1) { desc = (struct iser_rx_desc *) (unsigned long) wc.wr_id; BUG_ON(desc == NULL); ib_conn = wc.qp->qp_context; if (wc.status == IB_WC_SUCCESS) { if (wc.opcode == IB_WC_RECV) { xfer_len = (unsigned long)wc.byte_len; iser_rcv_completion(desc, xfer_len, ib_conn); } else iser_err("expected opcode %d got %d\n", IB_WC_RECV, wc.opcode); } else { if (wc.status != IB_WC_WR_FLUSH_ERR) iser_err("rx id %llx status %d vend_err %x\n", wc.wr_id, wc.status, wc.vendor_err); ib_conn->post_recv_buf_count--; iser_handle_comp_error(NULL, ib_conn); } completed_rx++; if (!(completed_rx & 63)) completed_tx += iser_drain_tx_cq(device); } /* #warning "it is assumed here that arming CQ only once its empty" * * " would not cause interrupts to be missed" */ ib_req_notify_cq(cq, IB_CQ_NEXT_COMP); completed_tx += iser_drain_tx_cq(device); iser_dbg("got %d rx %d tx completions\n", completed_rx, completed_tx); }