LXR linux/drivers/net/ethernet/qlogic/qed/qed

   1/* QLogic qed NIC Driver
   2 * Copyright (c) 2015-2017  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
  33#ifndef _QED_ISCSI_H
  34#define _QED_ISCSI_H
  35#include <linux/types.h>
  36#include <linux/list.h>
  37#include <linux/slab.h>
  38#include <linux/spinlock.h>
  39#include <linux/qed/tcp_common.h>
  40#include <linux/qed/qed_iscsi_if.h>
  41#include <linux/qed/qed_chain.h>
  42#include "qed.h"
  43#include "qed_hsi.h"
  44#include "qed_mcp.h"
  45#include "qed_sp.h"
  46
  47struct qed_iscsi_info {
  48        spinlock_t lock; /* Connection resources. */
  49        struct list_head free_list;
  50        u16 max_num_outstanding_tasks;
  51        void *event_context;
  52        iscsi_event_cb_t event_cb;
  53};
  54
  55#ifdef CONFIG_QED_LL2
  56extern const struct qed_ll2_ops qed_ll2_ops_pass;
  57#endif
  58
  59#if IS_ENABLED(CONFIG_QED_ISCSI)
  60int qed_iscsi_alloc(struct qed_hwfn *p_hwfn);
  61
  62void qed_iscsi_setup(struct qed_hwfn *p_hwfn);
  63
  64void qed_iscsi_free(struct qed_hwfn *p_hwfn);
  65
  66/**
  67 * @brief - Fills provided statistics struct with statistics.
  68 *
  69 * @param cdev
  70 * @param stats - points to struct that will be filled with statistics.
  71 */
  72void qed_get_protocol_stats_iscsi(struct qed_dev *cdev,
  73                                  struct qed_mcp_iscsi_stats *stats);
  74#else /* IS_ENABLED(CONFIG_QED_ISCSI) */
  75static inline int qed_iscsi_alloc(struct qed_hwfn *p_hwfn)
  76{
  77        return -EINVAL;
  78}
  79
  80static inline void qed_iscsi_setup(struct qed_hwfn *p_hwfn) {}
  81
  82static inline void qed_iscsi_free(struct qed_hwfn *p_hwfn) {}
  83
  84static inline void
  85qed_get_protocol_stats_iscsi(struct qed_dev *cdev,
  86                             struct qed_mcp_iscsi_stats *stats) {}
  87#endif /* IS_ENABLED(CONFIG_QED_ISCSI) */
  88
  89#endif
  90