linux/drivers/infiniband/hw/mlx5/gsi.c

/*
 * Copyright (c) 2016, Mellanox Technologies. All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#include "mlx5_ib.h"

struct mlx5_ib_gsi_wr { … };

static bool mlx5_ib_deth_sqpn_cap(struct mlx5_ib_dev *dev)
{ … }

/* Call with gsi->lock locked */
static void generate_completions(struct mlx5_ib_qp *mqp)
{ … }

static void handle_single_completion(struct ib_cq *cq, struct ib_wc *wc)
{ … }

int mlx5_ib_create_gsi(struct ib_pd *pd, struct mlx5_ib_qp *mqp,
		       struct ib_qp_init_attr *attr)
{ … }

int mlx5_ib_destroy_gsi(struct mlx5_ib_qp *mqp)
{ … }

static struct ib_qp *create_gsi_ud_qp(struct mlx5_ib_gsi_qp *gsi)
{ … }

static int modify_to_rts(struct mlx5_ib_gsi_qp *gsi, struct ib_qp *qp,
			 u16 pkey_index)
{ … }

static void setup_qp(struct mlx5_ib_gsi_qp *gsi, u16 qp_index)
{ … }

int mlx5_ib_gsi_modify_qp(struct ib_qp *qp, struct ib_qp_attr *attr,
			  int attr_mask)
{ … }

int mlx5_ib_gsi_query_qp(struct ib_qp *qp, struct ib_qp_attr *qp_attr,
			 int qp_attr_mask,
			 struct ib_qp_init_attr *qp_init_attr)
{ … }

/* Call with gsi->lock locked */
static int mlx5_ib_add_outstanding_wr(struct mlx5_ib_qp *mqp,
				      struct ib_ud_wr *wr, struct ib_wc *wc)
{ … }

/* Call with gsi->lock locked */
static int mlx5_ib_gsi_silent_drop(struct mlx5_ib_qp *mqp, struct ib_ud_wr *wr)
{ … }

/* Call with gsi->lock locked */
static struct ib_qp *get_tx_qp(struct mlx5_ib_gsi_qp *gsi, struct ib_ud_wr *wr)
{ … }

int mlx5_ib_gsi_post_send(struct ib_qp *qp, const struct ib_send_wr *wr,
			  const struct ib_send_wr **bad_wr)
{ … }

int mlx5_ib_gsi_post_recv(struct ib_qp *qp, const struct ib_recv_wr *wr,
			  const struct ib_recv_wr **bad_wr)
{ … }

void mlx5_ib_gsi_pkey_change(struct mlx5_ib_gsi_qp *gsi)
{ … }