drivers/net/ethernet/qlogic/qed/qed_ooo.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_OOO_H
   8 #define _QED_OOO_H
   9 #include <linux/types.h>
  10 #include <linux/list.h>
  11 #include <linux/slab.h>
  12 #include "qed.h"
  13
  14 #define QED_MAX_NUM_ISLES       256
  15 #define QED_MAX_NUM_OOO_HISTORY_ENTRIES 512
  16
  17 #define QED_OOO_LEFT_BUF        0
  18 #define QED_OOO_RIGHT_BUF       1
  19
  20 struct qed_ooo_buffer {
  21         struct list_head list_entry;
  22         void *rx_buffer_virt_addr;
  23         dma_addr_t rx_buffer_phys_addr;
  24         u32 rx_buffer_size;
  25         u16 packet_length;
  26         u16 parse_flags;
  27         u16 vlan;
  28         u8 placement_offset;
  29 };
  30
  31 struct qed_ooo_isle {
  32         struct list_head list_entry;
  33         struct list_head buffers_list;
  34 };
  35
  36 struct qed_ooo_archipelago {
  37         struct list_head isles_list;
  38 };
  39
  40 struct qed_ooo_history {
  41         struct ooo_opaque *p_cqes;
  42         u32 head_idx;
  43         u32 num_of_cqes;
  44 };
  45
  46 struct qed_ooo_info {
  47         struct list_head free_buffers_list;
  48         struct list_head ready_buffers_list;
  49         struct list_head free_isles_list;
  50         struct qed_ooo_archipelago *p_archipelagos_mem;
  51         struct qed_ooo_isle *p_isles_mem;
  52         struct qed_ooo_history ooo_history;
  53         u32 cur_isles_number;
  54         u32 max_isles_number;
  55         u32 gen_isles_number;
  56         u16 max_num_archipelagos;
  57         u16 cid_base;
  58 };
  59
  60 #if IS_ENABLED(CONFIG_QED_OOO)
  61 void qed_ooo_save_history_entry(struct qed_hwfn *p_hwfn,
  62                                 struct qed_ooo_info *p_ooo_info,
  63                                 struct ooo_opaque *p_cqe);
  64
  65 int qed_ooo_alloc(struct qed_hwfn *p_hwfn);
  66
  67 void qed_ooo_setup(struct qed_hwfn *p_hwfn);
  68
  69 void qed_ooo_free(struct qed_hwfn *p_hwfn);
  70
  71 void qed_ooo_release_connection_isles(struct qed_hwfn *p_hwfn,
  72                                       struct qed_ooo_info *p_ooo_info,
  73                                       u32 cid);
  74
  75 void qed_ooo_release_all_isles(struct qed_hwfn *p_hwfn,
  76                                struct qed_ooo_info *p_ooo_info);
  77
  78 void qed_ooo_put_free_buffer(struct qed_hwfn *p_hwfn,
  79                              struct qed_ooo_info *p_ooo_info,
  80                              struct qed_ooo_buffer *p_buffer);
  81
  82 struct qed_ooo_buffer *
  83 qed_ooo_get_free_buffer(struct qed_hwfn *p_hwfn,
  84                         struct qed_ooo_info *p_ooo_info);
  85
  86 void qed_ooo_put_ready_buffer(struct qed_hwfn *p_hwfn,
  87                               struct qed_ooo_info *p_ooo_info,
  88                               struct qed_ooo_buffer *p_buffer, u8 on_tail);
  89
  90 struct qed_ooo_buffer *
  91 qed_ooo_get_ready_buffer(struct qed_hwfn *p_hwfn,
  92                          struct qed_ooo_info *p_ooo_info);
  93
  94 void qed_ooo_delete_isles(struct qed_hwfn *p_hwfn,
  95                           struct qed_ooo_info *p_ooo_info,
  96                           u32 cid, u8 drop_isle, u8 drop_size);
  97
  98 void qed_ooo_add_new_isle(struct qed_hwfn *p_hwfn,
  99                           struct qed_ooo_info *p_ooo_info,
 100                           u32 cid,
 101                           u8 ooo_isle, struct qed_ooo_buffer *p_buffer);
 102
 103 void qed_ooo_add_new_buffer(struct qed_hwfn *p_hwfn,
 104                             struct qed_ooo_info *p_ooo_info,
 105                             u32 cid,
 106                             u8 ooo_isle,
 107                             struct qed_ooo_buffer *p_buffer, u8 buffer_side);
 108
 109 void qed_ooo_join_isles(struct qed_hwfn *p_hwfn,
 110                         struct qed_ooo_info *p_ooo_info, u32 cid,
 111                         u8 left_isle);
 112 #else /* IS_ENABLED(CONFIG_QED_ISCSI) */
 113 static inline void qed_ooo_save_history_entry(struct qed_hwfn *p_hwfn,
 114                                               struct qed_ooo_info *p_ooo_info,
 115                                               struct ooo_opaque *p_cqe) {}
 116
 117 static inline int qed_ooo_alloc(struct qed_hwfn *p_hwfn)
 118 {
 119         return -EINVAL;
 120 }
 121
 122 static inline void qed_ooo_setup(struct qed_hwfn *p_hwfn) {}
 123
 124 static inline void qed_ooo_free(struct qed_hwfn *p_hwfn) {}
 125
 126 static inline void
 127 qed_ooo_release_connection_isles(struct qed_hwfn *p_hwfn,
 128                                  struct qed_ooo_info *p_ooo_info,
 129                                  u32 cid) {}
 130
 131 static inline void qed_ooo_release_all_isles(struct qed_hwfn *p_hwfn,
 132                                              struct qed_ooo_info *p_ooo_info)
 133                                              {}
 134
 135 static inline void qed_ooo_put_free_buffer(struct qed_hwfn *p_hwfn,
 136                                            struct qed_ooo_info *p_ooo_info,
 137                                            struct qed_ooo_buffer *p_buffer) {}
 138
 139 static inline struct qed_ooo_buffer *
 140 qed_ooo_get_free_buffer(struct qed_hwfn *p_hwfn,
 141                         struct qed_ooo_info *p_ooo_info) { return NULL; }
 142
 143 static inline void qed_ooo_put_ready_buffer(struct qed_hwfn *p_hwfn,
 144                                             struct qed_ooo_info *p_ooo_info,
 145                                             struct qed_ooo_buffer *p_buffer,
 146                                             u8 on_tail) {}
 147
 148 static inline struct qed_ooo_buffer *
 149 qed_ooo_get_ready_buffer(struct qed_hwfn *p_hwfn,
 150                          struct qed_ooo_info *p_ooo_info) { return NULL; }
 151
 152 static inline void qed_ooo_delete_isles(struct qed_hwfn *p_hwfn,
 153                                         struct qed_ooo_info *p_ooo_info,
 154                                         u32 cid, u8 drop_isle, u8 drop_size) {}
 155
 156 static inline void qed_ooo_add_new_isle(struct qed_hwfn *p_hwfn,
 157                                         struct qed_ooo_info *p_ooo_info,
 158                                         u32 cid, u8 ooo_isle,
 159                                         struct qed_ooo_buffer *p_buffer) {}
 160
 161 static inline void qed_ooo_add_new_buffer(struct qed_hwfn *p_hwfn,
 162                                           struct qed_ooo_info *p_ooo_info,
 163                                           u32 cid, u8 ooo_isle,
 164                                           struct qed_ooo_buffer *p_buffer,
 165                                           u8 buffer_side) {}
 166
 167 static inline void qed_ooo_join_isles(struct qed_hwfn *p_hwfn,
 168                                       struct qed_ooo_info *p_ooo_info, u32 cid,
 169                                       u8 left_isle) {}
 170 #endif /* IS_ENABLED(CONFIG_QED_ISCSI) */
 171
 172 #endif