linux/drivers/infiniband/hw/hns/hns_roce_cq.c

/*
 * Copyright (c) 2016 Hisilicon Limited.
 *
 * 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 <rdma/ib_umem.h>
#include <rdma/uverbs_ioctl.h>
#include "hns_roce_device.h"
#include "hns_roce_cmd.h"
#include "hns_roce_hem.h"
#include "hns_roce_common.h"

static u8 get_least_load_bankid_for_cq(struct hns_roce_bank *bank)
{ … }

static int alloc_cqn(struct hns_roce_dev *hr_dev, struct hns_roce_cq *hr_cq)
{ … }

static inline u8 get_cq_bankid(unsigned long cqn)
{ … }

static void free_cqn(struct hns_roce_dev *hr_dev, unsigned long cqn)
{ … }

static int hns_roce_create_cqc(struct hns_roce_dev *hr_dev,
			       struct hns_roce_cq *hr_cq,
			       u64 *mtts, dma_addr_t dma_handle)
{ … }

static int alloc_cqc(struct hns_roce_dev *hr_dev, struct hns_roce_cq *hr_cq)
{ … }

static void free_cqc(struct hns_roce_dev *hr_dev, struct hns_roce_cq *hr_cq)
{ … }

static int alloc_cq_buf(struct hns_roce_dev *hr_dev, struct hns_roce_cq *hr_cq,
			struct ib_udata *udata, unsigned long addr)
{ … }

static void free_cq_buf(struct hns_roce_dev *hr_dev, struct hns_roce_cq *hr_cq)
{ … }

static int alloc_cq_db(struct hns_roce_dev *hr_dev, struct hns_roce_cq *hr_cq,
		       struct ib_udata *udata, unsigned long addr,
		       struct hns_roce_ib_create_cq_resp *resp)
{ … }

static void free_cq_db(struct hns_roce_dev *hr_dev, struct hns_roce_cq *hr_cq,
		       struct ib_udata *udata)
{ … }

static int verify_cq_create_attr(struct hns_roce_dev *hr_dev,
				 const struct ib_cq_init_attr *attr)
{ … }

static int get_cq_ucmd(struct hns_roce_cq *hr_cq, struct ib_udata *udata,
		       struct hns_roce_ib_create_cq *ucmd)
{ … }

static void set_cq_param(struct hns_roce_cq *hr_cq, u32 cq_entries, int vector,
			 struct hns_roce_ib_create_cq *ucmd)
{ … }

static int set_cqe_size(struct hns_roce_cq *hr_cq, struct ib_udata *udata,
			struct hns_roce_ib_create_cq *ucmd)
{ … }

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

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

void hns_roce_cq_completion(struct hns_roce_dev *hr_dev, u32 cqn)
{ … }

void hns_roce_cq_event(struct hns_roce_dev *hr_dev, u32 cqn, int event_type)
{ … }

void hns_roce_init_cq_table(struct hns_roce_dev *hr_dev)
{ … }

void hns_roce_cleanup_cq_table(struct hns_roce_dev *hr_dev)
{ … }