linux/net/rds/ib_frmr.c

/*
 * Copyright (c) 2016 Oracle.  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 "ib_mr.h"

static inline void
rds_transition_frwr_state(struct rds_ib_mr *ibmr,
			  enum rds_ib_fr_state old_state,
			  enum rds_ib_fr_state new_state)
{ … }

static struct rds_ib_mr *rds_ib_alloc_frmr(struct rds_ib_device *rds_ibdev,
					   int npages)
{ … }

static void rds_ib_free_frmr(struct rds_ib_mr *ibmr, bool drop)
{ … }

static int rds_ib_post_reg_frmr(struct rds_ib_mr *ibmr)
{ … }

static int rds_ib_map_frmr(struct rds_ib_device *rds_ibdev,
			   struct rds_ib_mr_pool *pool,
			   struct rds_ib_mr *ibmr,
			   struct scatterlist *sg, unsigned int sg_len)
{ … }

static int rds_ib_post_inv(struct rds_ib_mr *ibmr)
{ … }

void rds_ib_mr_cqe_handler(struct rds_ib_connection *ic, struct ib_wc *wc)
{ … }

void rds_ib_unreg_frmr(struct list_head *list, unsigned int *nfreed,
		       unsigned long *unpinned, unsigned int goal)
{ … }

struct rds_ib_mr *rds_ib_reg_frmr(struct rds_ib_device *rds_ibdev,
				  struct rds_ib_connection *ic,
				  struct scatterlist *sg,
				  unsigned long nents, u32 *key)
{ … }

void rds_ib_free_frmr_list(struct rds_ib_mr *ibmr)
{ … }