LXR linux/drivers/infiniband/hw/qedr/qedr_roce

   1/* QLogic qedr NIC Driver
   2 * Copyright (c) 2015-2016  QLogic Corporation
   3 *
   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:
   9 *
  10 *     Redistribution and use in source and binary forms, with or
  11 *     without modification, are permitted provided that the following
  12 *     conditions are met:
  13 *
  14 *      - Redistributions of source code must retain the above
  15 *        copyright notice, this list of conditions and the following
  16 *        disclaimer.
  17 *
  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.
  22 *
  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
  30 * SOFTWARE.
  31 */
  32#ifndef LINUX_QEDR_CM_H_
  33#define LINUX_QEDR_CM_H_
  34
  35#define QEDR_GSI_MAX_RECV_WR    (4096)
  36#define QEDR_GSI_MAX_SEND_WR    (4096)
  37
  38#define QEDR_GSI_MAX_RECV_SGE   (1)     /* LL2 FW limitation */
  39
  40#define QEDR_ROCE_V2_UDP_SPORT  (0000)
  41
  42static inline u32 qedr_get_ipv4_from_gid(const u8 *gid)
  43{
  44        return *(u32 *)(void *)&gid[12];
  45}
  46
  47/* RDMA CM */
  48int qedr_gsi_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
  49int qedr_gsi_post_recv(struct ib_qp *ibqp, const struct ib_recv_wr *wr,
  50                       const struct ib_recv_wr **bad_wr);
  51int qedr_gsi_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr,
  52                       const struct ib_send_wr **bad_wr);
  53int qedr_create_gsi_qp(struct qedr_dev *dev, struct ib_qp_init_attr *attrs,
  54                       struct qedr_qp *qp);
  55void qedr_store_gsi_qp_cq(struct qedr_dev *dev,
  56                          struct qedr_qp *qp, struct ib_qp_init_attr *attrs);
  57int qedr_destroy_gsi_qp(struct qedr_dev *dev);
  58void qedr_inc_sw_gsi_cons(struct qedr_qp_hwq_info *info);
  59#endif
  60