drivers/net/ethernet/qlogic/qed/qed_iscsi.h

   1 /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
   2 /* QLogic qed NIC Driver
   3  * Copyright (c) 2015-2017  QLogic Corporation
   4  * Copyright (c) 2019-2020 Marvell International Ltd.
   5  */
   6
   7 #ifndef _QED_ISCSI_H
   8 #define _QED_ISCSI_H
   9 #include <linux/types.h>
  10 #include <linux/list.h>
  11 #include <linux/slab.h>
  12 #include <linux/spinlock.h>
  13 #include <linux/qed/tcp_common.h>
  14 #include <linux/qed/qed_iscsi_if.h>
  15 #include <linux/qed/qed_chain.h>
  16 #include "qed.h"
  17 #include "qed_hsi.h"
  18 #include "qed_mcp.h"
  19 #include "qed_sp.h"
  20
  21 struct qed_iscsi_info {
  22         spinlock_t lock; /* Connection resources. */
  23         struct list_head free_list;
  24         u16 max_num_outstanding_tasks;
  25         void *event_context;
  26         iscsi_event_cb_t event_cb;
  27 };
  28
  29 #if IS_ENABLED(CONFIG_QED_ISCSI)
  30 int qed_iscsi_alloc(struct qed_hwfn *p_hwfn);
  31
  32 void qed_iscsi_setup(struct qed_hwfn *p_hwfn);
  33
  34 void qed_iscsi_free(struct qed_hwfn *p_hwfn);
  35
  36 /**
  37  * qed_get_protocol_stats_iscsi(): Fills provided statistics
  38  *                                 struct with statistics.
  39  *
  40  * @cdev: Qed dev pointer.
  41  * @stats: Points to struct that will be filled with statistics.
  42  * @is_atomic: Hint from the caller - if the func can sleep or not.
  43  *
  44  * Context: The function should not sleep in case is_atomic == true.
  45  * Return: Void.
  46  */
  47 void qed_get_protocol_stats_iscsi(struct qed_dev *cdev,
  48                                   struct qed_mcp_iscsi_stats *stats,
  49                                   bool is_atomic);
  50 #else /* IS_ENABLED(CONFIG_QED_ISCSI) */
  51 static inline int qed_iscsi_alloc(struct qed_hwfn *p_hwfn)
  52 {
  53         return -EINVAL;
  54 }
  55
  56 static inline void qed_iscsi_setup(struct qed_hwfn *p_hwfn) {}
  57
  58 static inline void qed_iscsi_free(struct qed_hwfn *p_hwfn) {}
  59
  60 static inline void
  61 qed_get_protocol_stats_iscsi(struct qed_dev *cdev,
  62                              struct qed_mcp_iscsi_stats *stats,
  63                              bool is_atomic) {}
  64 #endif /* IS_ENABLED(CONFIG_QED_ISCSI) */
  65
  66 #endif