cq.c | Explore in Territory

/*
 * Copyright (c) 2013-2015, 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 <linux/kref.h>
#include <rdma/ib_umem.h>
#include <rdma/ib_user_verbs.h>
#include <rdma/ib_cache.h>
#include "mlx5_ib.h"
#include "srq.h"
#include "qp.h"

#define UVERBS_MODULE_NAME …
#include <rdma/uverbs_named_ioctl.h>

static void mlx5_ib_cq_comp(struct mlx5_core_cq *cq, struct mlx5_eqe *eqe)
{ … }

static void mlx5_ib_cq_event(struct mlx5_core_cq *mcq, enum mlx5_event type)
{ … }

static void *get_cqe(struct mlx5_ib_cq *cq, int n)
{ … }

static u8 sw_ownership_bit(int n, int nent)
{ … }

static void *get_sw_cqe(struct mlx5_ib_cq *cq, int n)
{ … }

static void *next_cqe_sw(struct mlx5_ib_cq *cq)
{ … }

static enum ib_wc_opcode get_umr_comp(struct mlx5_ib_wq *wq, int idx)
{ … }

static void handle_good_req(struct ib_wc *wc, struct mlx5_cqe64 *cqe,
			    struct mlx5_ib_wq *wq, int idx)
{ … }

enum { … };

static void handle_responder(struct ib_wc *wc, struct mlx5_cqe64 *cqe,
			     struct mlx5_ib_qp *qp)
{ … }

static void dump_cqe(struct mlx5_ib_dev *dev, struct mlx5_err_cqe *cqe,
		     struct ib_wc *wc, const char *level)
{ … }

static void mlx5_handle_error_cqe(struct mlx5_ib_dev *dev,
				  struct mlx5_err_cqe *cqe,
				  struct ib_wc *wc)
{ … }

static void handle_atomics(struct mlx5_ib_qp *qp, struct mlx5_cqe64 *cqe64,
			   u16 tail, u16 head)
{ … }

static void free_cq_buf(struct mlx5_ib_dev *dev, struct mlx5_ib_cq_buf *buf)
{ … }

static void get_sig_err_item(struct mlx5_sig_err_cqe *cqe,
			     struct ib_sig_err *item)
{ … }

static void sw_comp(struct mlx5_ib_qp *qp, int num_entries, struct ib_wc *wc,
		    int *npolled, bool is_send)
{ … }

static void mlx5_ib_poll_sw_comp(struct mlx5_ib_cq *cq, int num_entries,
				 struct ib_wc *wc, int *npolled)
{ … }

static int mlx5_poll_one(struct mlx5_ib_cq *cq,
			 struct mlx5_ib_qp **cur_qp,
			 struct ib_wc *wc)
{ … }

static int poll_soft_wc(struct mlx5_ib_cq *cq, int num_entries,
			struct ib_wc *wc, bool is_fatal_err)
{ … }

int mlx5_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc)
{ … }

int mlx5_ib_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags)
{ … }

static int alloc_cq_frag_buf(struct mlx5_ib_dev *dev,
			     struct mlx5_ib_cq_buf *buf,
			     int nent,
			     int cqe_size)
{ … }

enum { … };

static int mini_cqe_res_format_to_hw(struct mlx5_ib_dev *dev, u8 format)
{ … }

static int create_cq_user(struct mlx5_ib_dev *dev, struct ib_udata *udata,
			  struct mlx5_ib_cq *cq, int entries, u32 **cqb,
			  int *cqe_size, int *index, int *inlen,
			  struct uverbs_attr_bundle *attrs)
{ … }

static void destroy_cq_user(struct mlx5_ib_cq *cq, struct ib_udata *udata)
{ … }

static void init_cq_frag_buf(struct mlx5_ib_cq_buf *buf)
{ … }

static int create_cq_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_cq *cq,
			    int entries, int cqe_size,
			    u32 **cqb, int *index, int *inlen)
{ … }

static void destroy_cq_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_cq *cq)
{ … }

static void notify_soft_wc_handler(struct work_struct *work)
{ … }

int mlx5_ib_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
		      struct uverbs_attr_bundle *attrs)
{ … }

int mlx5_ib_destroy_cq(struct ib_cq *cq, struct ib_udata *udata)
{ … }

static int is_equal_rsn(struct mlx5_cqe64 *cqe64, u32 rsn)
{ … }

void __mlx5_ib_cq_clean(struct mlx5_ib_cq *cq, u32 rsn, struct mlx5_ib_srq *srq)
{ … }

void mlx5_ib_cq_clean(struct mlx5_ib_cq *cq, u32 qpn, struct mlx5_ib_srq *srq)
{ … }

int mlx5_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period)
{ … }

static int resize_user(struct mlx5_ib_dev *dev, struct mlx5_ib_cq *cq,
		       int entries, struct ib_udata *udata,
		       int *cqe_size)
{ … }

static int resize_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_cq *cq,
			 int entries, int cqe_size)
{ … }

static int copy_resize_cqes(struct mlx5_ib_cq *cq)
{ … }

int mlx5_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata)
{ … }

int mlx5_ib_get_cqe_size(struct ib_cq *ibcq)
{ … }

/* Called from atomic context */
int mlx5_ib_generate_wc(struct ib_cq *ibcq, struct ib_wc *wc)
{ … }

ADD_UVERBS_ATTRIBUTES_SIMPLE(
	mlx5_ib_cq_create,
	UVERBS_OBJECT_CQ,
	UVERBS_METHOD_CQ_CREATE,
	UVERBS_ATTR_PTR_IN(
		MLX5_IB_ATTR_CREATE_CQ_UAR_INDEX,
		UVERBS_ATTR_TYPE(u32),
		UA_OPTIONAL));

const struct uapi_definition mlx5_ib_create_cq_defs[] = …;
linux/drivers/infiniband/hw/mlx5/cq.c
