C++ (Cpp) isert_wr_set_fields Examples

Example #1

File: iser_pdu.c Project: qtsky89/scst-xcopy

static int isert_alloc_for_rdma(struct isert_cmnd *pdu, int sge_cnt,
				struct isert_connection *isert_conn)
{
	struct isert_wr *wr;
	struct ib_sge *sg_pool;
	int i, ret = 0;
	int wr_cnt;

	sg_pool = kmalloc(sizeof(*sg_pool) * sge_cnt, GFP_KERNEL);
	if (unlikely(sg_pool == NULL)) {
		ret = -ENOMEM;
		goto out;
	}

	wr_cnt = DIV_ROUND_UP(sge_cnt, isert_conn->max_sge);
	wr = kmalloc(sizeof(*wr) * wr_cnt, GFP_KERNEL);
	if (unlikely(wr == NULL)) {
		ret = -ENOMEM;
		goto out_free_sg_pool;
	}

	kfree(pdu->wr);
	pdu->wr = wr;

	kfree(pdu->sg_pool);
	pdu->sg_pool = sg_pool;

	pdu->n_wr = wr_cnt;
	pdu->n_sge = sge_cnt;

	for (i = 0; i < wr_cnt; ++i)
		isert_wr_set_fields(&pdu->wr[i], isert_conn, pdu);

	for (i = 0; i < sge_cnt; ++i)
		pdu->sg_pool[i].lkey = isert_conn->isert_dev->mr->lkey;

	goto out;

out_free_sg_pool:
	kfree(sg_pool);
out:
	return ret;
}

Example #2

File: iser_rdma.c Project: christopherdion/scst

void isert_post_drain(struct isert_connection *isert_conn)
{
	if (!test_and_set_bit(ISERT_DRAIN_POSTED, &isert_conn->flags)) {
		struct ib_send_wr *bad_wr;
		int err;

		isert_wr_set_fields(&isert_conn->drain_wr, isert_conn, NULL);
		isert_conn->drain_wr.wr_op = ISER_WR_SEND;
		isert_conn->drain_wr.send_wr.wr_id = _ptr_to_u64(&isert_conn->drain_wr);
		isert_conn->drain_wr.send_wr.opcode = IB_WR_SEND;
		err = ib_post_send(isert_conn->qp, &isert_conn->drain_wr.send_wr, &bad_wr);
		if (unlikely(err)) {
			pr_err("Failed to post drain wr, err:%d\n", err);
			/* We need to decrement iser_conn->kref in order to be able to cleanup
			 * the connection */
			set_bit(ISERT_DRAIN_FAILED, &isert_conn->flags);
			isert_conn_free(isert_conn);
		}
	}
}