1 /* bnx2x_dcb.h: Broadcom Everest network driver. 2 * 3 * Copyright 2009-2012 Broadcom Corporation 4 * 5 * Unless you and Broadcom execute a separate written software license 6 * agreement governing use of this software, this software is licensed to you 7 * under the terms of the GNU General Public License version 2, available 8 * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL"). 9 * 10 * Notwithstanding the above, under no circumstances may you combine this 11 * software in any way with any other Broadcom software provided under a 12 * license other than the GPL, without Broadcom's express prior written 13 * consent. 14 * 15 * Maintained by: Eilon Greenstein <eilong@broadcom.com> 16 * Written by: Dmitry Kravkov 17 * 18 */ 19 #ifndef BNX2X_DCB_H 20 #define BNX2X_DCB_H 21 22 #include "bnx2x_hsi.h" 23 24 #define LLFC_DRIVER_TRAFFIC_TYPE_MAX 3 /* NW, iSCSI, FCoE */ 25 struct bnx2x_dcbx_app_params { 26 u32 enabled; 27 u32 traffic_type_priority[LLFC_DRIVER_TRAFFIC_TYPE_MAX]; 28 }; 29 30 #define DCBX_COS_MAX_NUM_E2 DCBX_E2E3_MAX_NUM_COS 31 /* bnx2x currently limits numbers of supported COSes to 3 to be extended to 6 */ 32 #define BNX2X_MAX_COS_SUPPORT 3 33 #define DCBX_COS_MAX_NUM_E3B0 BNX2X_MAX_COS_SUPPORT 34 #define DCBX_COS_MAX_NUM BNX2X_MAX_COS_SUPPORT 35 36 struct bnx2x_dcbx_cos_params { 37 u32 bw_tbl; 38 u32 pri_bitmask; 39 /* 40 * strict priority: valid values are 0..5; 0 is highest priority. 41 * There can't be two COSes with the same priority. 42 */ 43 u8 strict; 44 #define BNX2X_DCBX_STRICT_INVALID DCBX_COS_MAX_NUM 45 #define BNX2X_DCBX_STRICT_COS_HIGHEST 0 46 #define BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(sp) ((sp) + 1) 47 u8 pauseable; 48 }; 49 50 struct bnx2x_dcbx_pg_params { 51 u32 enabled; 52 u8 num_of_cos; /* valid COS entries */ 53 struct bnx2x_dcbx_cos_params cos_params[DCBX_COS_MAX_NUM]; 54 }; 55 56 struct bnx2x_dcbx_pfc_params { 57 u32 enabled; 58 u32 priority_non_pauseable_mask; 59 }; 60 61 struct bnx2x_dcbx_port_params { 62 struct bnx2x_dcbx_pfc_params pfc; 63 struct bnx2x_dcbx_pg_params ets; 64 struct bnx2x_dcbx_app_params app; 65 }; 66 67 #define BNX2X_DCBX_CONFIG_INV_VALUE (0xFFFFFFFF) 68 #define BNX2X_DCBX_OVERWRITE_SETTINGS_DISABLE 0 69 #define BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE 1 70 #define BNX2X_DCBX_OVERWRITE_SETTINGS_INVALID (BNX2X_DCBX_CONFIG_INV_VALUE) 71 #define BNX2X_IS_ETS_ENABLED(bp) ((bp)->dcb_state == BNX2X_DCB_STATE_ON &&\ 72 (bp)->dcbx_port_params.ets.enabled) 73 74 struct bnx2x_config_lldp_params { 75 u32 overwrite_settings; 76 u32 msg_tx_hold; 77 u32 msg_fast_tx; 78 u32 tx_credit_max; 79 u32 msg_tx_interval; 80 u32 tx_fast; 81 }; 82 83 struct bnx2x_admin_priority_app_table { 84 u32 valid; 85 u32 priority; 86 #define INVALID_TRAFFIC_TYPE_PRIORITY (0xFFFFFFFF) 87 u32 traffic_type; 88 #define TRAFFIC_TYPE_ETH 0 89 #define TRAFFIC_TYPE_PORT 1 90 u32 app_id; 91 }; 92 93 #define DCBX_CONFIG_MAX_APP_PROTOCOL 4 94 struct bnx2x_config_dcbx_params { 95 u32 overwrite_settings; 96 u32 admin_dcbx_version; 97 u32 admin_ets_enable; 98 u32 admin_pfc_enable; 99 u32 admin_tc_supported_tx_enable; 100 u32 admin_ets_configuration_tx_enable; 101 u32 admin_ets_recommendation_tx_enable; 102 u32 admin_pfc_tx_enable; 103 u32 admin_application_priority_tx_enable; 104 u32 admin_ets_willing; 105 u32 admin_ets_reco_valid; 106 u32 admin_pfc_willing; 107 u32 admin_app_priority_willing; 108 u32 admin_configuration_bw_precentage[8]; 109 u32 admin_configuration_ets_pg[8]; 110 u32 admin_recommendation_bw_precentage[8]; 111 u32 admin_recommendation_ets_pg[8]; 112 u32 admin_pfc_bitmap; 113 struct bnx2x_admin_priority_app_table 114 admin_priority_app_table[DCBX_CONFIG_MAX_APP_PROTOCOL]; 115 u32 admin_default_priority; 116 }; 117 118 #define GET_FLAGS(flags, bits) ((flags) & (bits)) 119 #define SET_FLAGS(flags, bits) ((flags) |= (bits)) 120 #define RESET_FLAGS(flags, bits) ((flags) &= ~(bits)) 121 122 enum { 123 DCBX_READ_LOCAL_MIB, 124 DCBX_READ_REMOTE_MIB 125 }; 126 127 #define ETH_TYPE_FCOE (0x8906) 128 #define TCP_PORT_ISCSI (0xCBC) 129 130 #define PFC_VALUE_FRAME_SIZE (512) 131 #define PFC_QUANTA_IN_NANOSEC_FROM_SPEED_MEGA(mega_speed) \ 132 ((1000 * PFC_VALUE_FRAME_SIZE)/(mega_speed)) 133 134 #define PFC_BRB1_REG_HIGH_LLFC_LOW_THRESHOLD 130 135 #define PFC_BRB1_REG_HIGH_LLFC_HIGH_THRESHOLD 170 136 137 138 139 struct cos_entry_help_data { 140 u32 pri_join_mask; 141 u32 cos_bw; 142 u8 strict; 143 bool pausable; 144 }; 145 146 struct cos_help_data { 147 struct cos_entry_help_data data[DCBX_COS_MAX_NUM]; 148 u8 num_of_cos; 149 }; 150 151 #define DCBX_ILLEGAL_PG (0xFF) 152 #define DCBX_PFC_PRI_MASK (0xFF) 153 #define DCBX_STRICT_PRIORITY (15) 154 #define DCBX_INVALID_COS_BW (0xFFFFFFFF) 155 #define DCBX_PFC_PRI_NON_PAUSE_MASK(bp) \ 156 ((bp)->dcbx_port_params.pfc.priority_non_pauseable_mask) 157 #define DCBX_PFC_PRI_PAUSE_MASK(bp) \ 158 ((u8)~DCBX_PFC_PRI_NON_PAUSE_MASK(bp)) 159 #define DCBX_PFC_PRI_GET_PAUSE(bp, pg_pri) \ 160 ((pg_pri) & (DCBX_PFC_PRI_PAUSE_MASK(bp))) 161 #define DCBX_PFC_PRI_GET_NON_PAUSE(bp, pg_pri) \ 162 (DCBX_PFC_PRI_NON_PAUSE_MASK(bp) & (pg_pri)) 163 #define DCBX_IS_PFC_PRI_SOME_PAUSE(bp, pg_pri) \ 164 (0 != DCBX_PFC_PRI_GET_PAUSE(bp, pg_pri)) 165 #define IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pg_pri) \ 166 (pg_pri == DCBX_PFC_PRI_GET_PAUSE((bp), (pg_pri))) 167 #define IS_DCBX_PFC_PRI_ONLY_NON_PAUSE(bp, pg_pri)\ 168 ((pg_pri) == DCBX_PFC_PRI_GET_NON_PAUSE((bp), (pg_pri))) 169 #define IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pg_pri) \ 170 (!(IS_DCBX_PFC_PRI_ONLY_NON_PAUSE((bp), (pg_pri)) || \ 171 IS_DCBX_PFC_PRI_ONLY_PAUSE((bp), (pg_pri)))) 172 173 174 struct pg_entry_help_data { 175 u8 num_of_dif_pri; 176 u8 pg; 177 u32 pg_priority; 178 }; 179 180 struct pg_help_data { 181 struct pg_entry_help_data data[LLFC_DRIVER_TRAFFIC_TYPE_MAX]; 182 u8 num_of_pg; 183 }; 184 185 /* forward DCB/PFC related declarations */ 186 struct bnx2x; 187 void bnx2x_dcbx_update(struct work_struct *work); 188 void bnx2x_dcbx_init_params(struct bnx2x *bp); 189 void bnx2x_dcbx_set_state(struct bnx2x *bp, bool dcb_on, u32 dcbx_enabled); 190 191 enum { 192 BNX2X_DCBX_STATE_NEG_RECEIVED = 0x1, 193 BNX2X_DCBX_STATE_TX_PAUSED, 194 BNX2X_DCBX_STATE_TX_RELEASED 195 }; 196 197 void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state); 198 void bnx2x_dcbx_pmf_update(struct bnx2x *bp); 199 /* DCB netlink */ 200 #ifdef BCM_DCBNL 201 extern const struct dcbnl_rtnl_ops bnx2x_dcbnl_ops; 202 int bnx2x_dcbnl_update_applist(struct bnx2x *bp, bool delall); 203 #endif /* BCM_DCBNL */ 204 205 #endif /* BNX2X_DCB_H */ 206