LXR dpdk/drivers/net/i40e/base/i40e_lan

   1/* SPDX-License-Identifier: BSD-3-Clause
   2 * Copyright(c) 2001-2020 Intel Corporation
   3 */
   4
   5#ifndef _I40E_LAN_HMC_H_
   6#define _I40E_LAN_HMC_H_
   7
   8/* forward-declare the HW struct for the compiler */
   9struct i40e_hw;
  10
  11/* HMC element context information */
  12
  13/* Rx queue context data
  14 *
  15 * The sizes of the variables may be larger than needed due to crossing byte
  16 * boundaries. If we do not have the width of the variable set to the correct
  17 * size then we could end up shifting bits off the top of the variable when the
  18 * variable is at the top of a byte and crosses over into the next byte.
  19 */
  20struct i40e_hmc_obj_rxq {
  21        u16 head;
  22        u16 cpuid; /* bigger than needed, see above for reason */
  23        u64 base;
  24        u16 qlen;
  25#define I40E_RXQ_CTX_DBUFF_SHIFT 7
  26        u16 dbuff; /* bigger than needed, see above for reason */
  27#define I40E_RXQ_CTX_HBUFF_SHIFT 6
  28        u16 hbuff; /* bigger than needed, see above for reason */
  29        u8  dtype;
  30        u8  dsize;
  31        u8  crcstrip;
  32        u8  fc_ena;
  33        u8  l2tsel;
  34        u8  hsplit_0;
  35        u8  hsplit_1;
  36        u8  showiv;
  37        u32 rxmax; /* bigger than needed, see above for reason */
  38        u8  tphrdesc_ena;
  39        u8  tphwdesc_ena;
  40        u8  tphdata_ena;
  41        u8  tphhead_ena;
  42        u16 lrxqthresh; /* bigger than needed, see above for reason */
  43        u8  prefena;    /* NOTE: normally must be set to 1 at init */
  44};
  45
  46/* Tx queue context data
  47*
  48* The sizes of the variables may be larger than needed due to crossing byte
  49* boundaries. If we do not have the width of the variable set to the correct
  50* size then we could end up shifting bits off the top of the variable when the
  51* variable is at the top of a byte and crosses over into the next byte.
  52*/
  53struct i40e_hmc_obj_txq {
  54        u16 head;
  55        u8  new_context;
  56        u64 base;
  57        u8  fc_ena;
  58        u8  timesync_ena;
  59        u8  fd_ena;
  60        u8  alt_vlan_ena;
  61        u16 thead_wb;
  62        u8  cpuid;
  63        u8  head_wb_ena;
  64        u16 qlen;
  65        u8  tphrdesc_ena;
  66        u8  tphrpacket_ena;
  67        u8  tphwdesc_ena;
  68        u64 head_wb_addr;
  69        u32 crc;
  70        u16 rdylist;
  71        u8  rdylist_act;
  72};
  73
  74/* for hsplit_0 field of Rx HMC context */
  75enum i40e_hmc_obj_rx_hsplit_0 {
  76        I40E_HMC_OBJ_RX_HSPLIT_0_NO_SPLIT      = 0,
  77        I40E_HMC_OBJ_RX_HSPLIT_0_SPLIT_L2      = 1,
  78        I40E_HMC_OBJ_RX_HSPLIT_0_SPLIT_IP      = 2,
  79        I40E_HMC_OBJ_RX_HSPLIT_0_SPLIT_TCP_UDP = 4,
  80        I40E_HMC_OBJ_RX_HSPLIT_0_SPLIT_SCTP    = 8,
  81};
  82
  83/* fcoe_cntx and fcoe_filt are for debugging purpose only */
  84struct i40e_hmc_obj_fcoe_cntx {
  85        u32 rsv[32];
  86};
  87
  88struct i40e_hmc_obj_fcoe_filt {
  89        u32 rsv[8];
  90};
  91
  92/* Context sizes for LAN objects */
  93enum i40e_hmc_lan_object_size {
  94        I40E_HMC_LAN_OBJ_SZ_8   = 0x3,
  95        I40E_HMC_LAN_OBJ_SZ_16  = 0x4,
  96        I40E_HMC_LAN_OBJ_SZ_32  = 0x5,
  97        I40E_HMC_LAN_OBJ_SZ_64  = 0x6,
  98        I40E_HMC_LAN_OBJ_SZ_128 = 0x7,
  99        I40E_HMC_LAN_OBJ_SZ_256 = 0x8,
 100        I40E_HMC_LAN_OBJ_SZ_512 = 0x9,
 101};
 102
 103#define I40E_HMC_L2OBJ_BASE_ALIGNMENT 512
 104#define I40E_HMC_OBJ_SIZE_TXQ         128
 105#define I40E_HMC_OBJ_SIZE_RXQ         32
 106#define I40E_HMC_OBJ_SIZE_FCOE_CNTX   64
 107#define I40E_HMC_OBJ_SIZE_FCOE_FILT   64
 108
 109enum i40e_hmc_lan_rsrc_type {
 110        I40E_HMC_LAN_FULL  = 0,
 111        I40E_HMC_LAN_TX    = 1,
 112        I40E_HMC_LAN_RX    = 2,
 113        I40E_HMC_FCOE_CTX  = 3,
 114        I40E_HMC_FCOE_FILT = 4,
 115        I40E_HMC_LAN_MAX   = 5
 116};
 117
 118enum i40e_hmc_model {
 119        I40E_HMC_MODEL_DIRECT_PREFERRED = 0,
 120        I40E_HMC_MODEL_DIRECT_ONLY      = 1,
 121        I40E_HMC_MODEL_PAGED_ONLY       = 2,
 122        I40E_HMC_MODEL_UNKNOWN,
 123};
 124
 125struct i40e_hmc_lan_create_obj_info {
 126        struct i40e_hmc_info *hmc_info;
 127        u32 rsrc_type;
 128        u32 start_idx;
 129        u32 count;
 130        enum i40e_sd_entry_type entry_type;
 131        u64 direct_mode_sz;
 132};
 133
 134struct i40e_hmc_lan_delete_obj_info {
 135        struct i40e_hmc_info *hmc_info;
 136        u32 rsrc_type;
 137        u32 start_idx;
 138        u32 count;
 139};
 140
 141enum i40e_status_code i40e_init_lan_hmc(struct i40e_hw *hw, u32 txq_num,
 142                                        u32 rxq_num, u32 fcoe_cntx_num,
 143                                        u32 fcoe_filt_num);
 144enum i40e_status_code i40e_configure_lan_hmc(struct i40e_hw *hw,
 145                                             enum i40e_hmc_model model);
 146enum i40e_status_code i40e_shutdown_lan_hmc(struct i40e_hw *hw);
 147
 148u64 i40e_calculate_l2fpm_size(u32 txq_num, u32 rxq_num,
 149                              u32 fcoe_cntx_num, u32 fcoe_filt_num);
 150enum i40e_status_code i40e_get_lan_tx_queue_context(struct i40e_hw *hw,
 151                                                    u16 queue,
 152                                                    struct i40e_hmc_obj_txq *s);
 153enum i40e_status_code i40e_clear_lan_tx_queue_context(struct i40e_hw *hw,
 154                                                      u16 queue);
 155enum i40e_status_code i40e_set_lan_tx_queue_context(struct i40e_hw *hw,
 156                                                    u16 queue,
 157                                                    struct i40e_hmc_obj_txq *s);
 158enum i40e_status_code i40e_get_lan_rx_queue_context(struct i40e_hw *hw,
 159                                                    u16 queue,
 160                                                    struct i40e_hmc_obj_rxq *s);
 161enum i40e_status_code i40e_clear_lan_rx_queue_context(struct i40e_hw *hw,
 162                                                      u16 queue);
 163enum i40e_status_code i40e_set_lan_rx_queue_context(struct i40e_hw *hw,
 164                                                    u16 queue,
 165                                                    struct i40e_hmc_obj_rxq *s);
 166enum i40e_status_code i40e_create_lan_hmc_object(struct i40e_hw *hw,
 167                                struct i40e_hmc_lan_create_obj_info *info);
 168enum i40e_status_code i40e_delete_lan_hmc_object(struct i40e_hw *hw,
 169                                struct i40e_hmc_lan_delete_obj_info *info);
 170
 171#endif /* _I40E_LAN_HMC_H_ */
 172