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

   1 /* QLogic qed NIC Driver
   2  * Copyright (c) 2015 QLogic Corporation
   3  *
   4  * This software is available under the terms of the GNU General Public License
   5  * (GPL) Version 2, available from the file COPYING in the main directory of
   6  * this source tree.
   7  */
   8
   9 #ifndef _QED_CXT_H
  10 #define _QED_CXT_H
  11
  12 #include <linux/types.h>
  13 #include <linux/slab.h>
  14 #include <linux/qed/qed_if.h>
  15 #include "qed_hsi.h"
  16 #include "qed.h"
  17
  18 struct qed_cxt_info {
  19         void                    *p_cxt;
  20         u32                     iid;
  21         enum protocol_type      type;
  22 };
  23
  24 #define MAX_TID_BLOCKS                  512
  25 struct qed_tid_mem {
  26         u32 tid_size;
  27         u32 num_tids_per_block;
  28         u32 waste;
  29         u8 *blocks[MAX_TID_BLOCKS];     /* 4K */
  30 };
  31
  32 /**
  33  * @brief qed_cxt_acquire - Acquire a new cid of a specific protocol type
  34  *
  35  * @param p_hwfn
  36  * @param type
  37  * @param p_cid
  38  *
  39  * @return int
  40  */
  41 int qed_cxt_acquire_cid(struct qed_hwfn *p_hwfn,
  42                         enum protocol_type type,
  43                         u32 *p_cid);
  44
  45 /**
  46  * @brief qedo_cid_get_cxt_info - Returns the context info for a specific cid
  47  *
  48  *
  49  * @param p_hwfn
  50  * @param p_info in/out
  51  *
  52  * @return int
  53  */
  54 int qed_cxt_get_cid_info(struct qed_hwfn *p_hwfn,
  55                          struct qed_cxt_info *p_info);
  56
  57 /**
  58  * @brief qed_cxt_get_tid_mem_info
  59  *
  60  * @param p_hwfn
  61  * @param p_info
  62  *
  63  * @return int
  64  */
  65 int qed_cxt_get_tid_mem_info(struct qed_hwfn *p_hwfn,
  66                              struct qed_tid_mem *p_info);
  67
  68 #define QED_CXT_ISCSI_TID_SEG   PROTOCOLID_ISCSI
  69 #define QED_CXT_ROCE_TID_SEG    PROTOCOLID_ROCE
  70 enum qed_cxt_elem_type {
  71         QED_ELEM_CXT,
  72         QED_ELEM_SRQ,
  73         QED_ELEM_TASK
  74 };
  75
  76 u32 qed_cxt_get_proto_cid_count(struct qed_hwfn *p_hwfn,
  77                                 enum protocol_type type, u32 *vf_cid);
  78
  79 /**
  80  * @brief qed_cxt_set_pf_params - Set the PF params for cxt init
  81  *
  82  * @param p_hwfn
  83  *
  84  * @return int
  85  */
  86 int qed_cxt_set_pf_params(struct qed_hwfn *p_hwfn);
  87
  88 /**
  89  * @brief qed_cxt_cfg_ilt_compute - compute ILT init parameters
  90  *
  91  * @param p_hwfn
  92  *
  93  * @return int
  94  */
  95 int qed_cxt_cfg_ilt_compute(struct qed_hwfn *p_hwfn);
  96
  97 /**
  98  * @brief qed_cxt_mngr_alloc - Allocate and init the context manager struct
  99  *
 100  * @param p_hwfn
 101  *
 102  * @return int
 103  */
 104 int qed_cxt_mngr_alloc(struct qed_hwfn *p_hwfn);
 105
 106 /**
 107  * @brief qed_cxt_mngr_free
 108  *
 109  * @param p_hwfn
 110  */
 111 void qed_cxt_mngr_free(struct qed_hwfn *p_hwfn);
 112
 113 /**
 114  * @brief qed_cxt_tables_alloc - Allocate ILT shadow, Searcher T2, acquired map
 115  *
 116  * @param p_hwfn
 117  *
 118  * @return int
 119  */
 120 int qed_cxt_tables_alloc(struct qed_hwfn *p_hwfn);
 121
 122 /**
 123  * @brief qed_cxt_mngr_setup - Reset the acquired CIDs
 124  *
 125  * @param p_hwfn
 126  */
 127 void qed_cxt_mngr_setup(struct qed_hwfn *p_hwfn);
 128
 129 /**
 130  * @brief qed_cxt_hw_init_common - Initailze ILT and DQ, common phase, per path.
 131  *
 132  *
 133  *
 134  * @param p_hwfn
 135  */
 136 void qed_cxt_hw_init_common(struct qed_hwfn *p_hwfn);
 137
 138 /**
 139  * @brief qed_cxt_hw_init_pf - Initailze ILT and DQ, PF phase, per path.
 140  *
 141  *
 142  *
 143  * @param p_hwfn
 144  */
 145 void qed_cxt_hw_init_pf(struct qed_hwfn *p_hwfn);
 146
 147 /**
 148  * @brief qed_qm_init_pf - Initailze the QM PF phase, per path
 149  *
 150  * @param p_hwfn
 151  */
 152
 153 void qed_qm_init_pf(struct qed_hwfn *p_hwfn);
 154
 155 /**
 156  * @brief Reconfigures QM pf on the fly
 157  *
 158  * @param p_hwfn
 159  * @param p_ptt
 160  *
 161  * @return int
 162  */
 163 int qed_qm_reconf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);
 164
 165 /**
 166  * @brief qed_cxt_release - Release a cid
 167  *
 168  * @param p_hwfn
 169  * @param cid
 170  */
 171 void qed_cxt_release_cid(struct qed_hwfn *p_hwfn,
 172                          u32 cid);
 173 int qed_cxt_dynamic_ilt_alloc(struct qed_hwfn *p_hwfn,
 174                               enum qed_cxt_elem_type elem_type, u32 iid);
 175 u32 qed_cxt_get_proto_tid_count(struct qed_hwfn *p_hwfn,
 176                                 enum protocol_type type);
 177 u32 qed_cxt_get_proto_cid_start(struct qed_hwfn *p_hwfn,
 178                                 enum protocol_type type);
 179
 180 #define QED_CTX_WORKING_MEM 0
 181 #define QED_CTX_FL_MEM 1
 182 #endif