1 /* bnx2x_dcb.h: Broadcom Everest network driver. 2 * 3 * Copyright 2009-2011 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 struct bnx2x_config_dcbx_params { 94 u32 overwrite_settings; 95 u32 admin_dcbx_version; 96 u32 admin_ets_enable; 97 u32 admin_pfc_enable; 98 u32 admin_tc_supported_tx_enable; 99 u32 admin_ets_configuration_tx_enable; 100 u32 admin_ets_recommendation_tx_enable; 101 u32 admin_pfc_tx_enable; 102 u32 admin_application_priority_tx_enable; 103 u32 admin_ets_willing; 104 u32 admin_ets_reco_valid; 105 u32 admin_pfc_willing; 106 u32 admin_app_priority_willing; 107 u32 admin_configuration_bw_precentage[8]; 108 u32 admin_configuration_ets_pg[8]; 109 u32 admin_recommendation_bw_precentage[8]; 110 u32 admin_recommendation_ets_pg[8]; 111 u32 admin_pfc_bitmap; 112 struct bnx2x_admin_priority_app_table admin_priority_app_table[4]; 113 u32 admin_default_priority; 114 }; 115 116 #define GET_FLAGS(flags, bits) ((flags) & (bits)) 117 #define SET_FLAGS(flags, bits) ((flags) |= (bits)) 118 #define RESET_FLAGS(flags, bits) ((flags) &= ~(bits)) 119 120 enum { 121 DCBX_READ_LOCAL_MIB, 122 DCBX_READ_REMOTE_MIB 123 }; 124 125 #define ETH_TYPE_FCOE (0x8906) 126 #define TCP_PORT_ISCSI (0xCBC) 127 128 #define PFC_VALUE_FRAME_SIZE (512) 129 #define PFC_QUANTA_IN_NANOSEC_FROM_SPEED_MEGA(mega_speed) \ 130 ((1000 * PFC_VALUE_FRAME_SIZE)/(mega_speed)) 131 132 #define PFC_BRB1_REG_HIGH_LLFC_LOW_THRESHOLD 130 133 #define PFC_BRB1_REG_HIGH_LLFC_HIGH_THRESHOLD 170 134 135 136 137 struct cos_entry_help_data { 138 u32 pri_join_mask; 139 u32 cos_bw; 140 u8 strict; 141 bool pausable; 142 }; 143 144 struct cos_help_data { 145 struct cos_entry_help_data data[DCBX_COS_MAX_NUM]; 146 u8 num_of_cos; 147 }; 148 149 #define DCBX_ILLEGAL_PG (0xFF) 150 #define DCBX_PFC_PRI_MASK (0xFF) 151 #define DCBX_STRICT_PRIORITY (15) 152 #define DCBX_INVALID_COS_BW (0xFFFFFFFF) 153 #define DCBX_PFC_PRI_NON_PAUSE_MASK(bp) \ 154 ((bp)->dcbx_port_params.pfc.priority_non_pauseable_mask) 155 #define DCBX_PFC_PRI_PAUSE_MASK(bp) \ 156 ((u8)~DCBX_PFC_PRI_NON_PAUSE_MASK(bp)) 157 #define DCBX_PFC_PRI_GET_PAUSE(bp, pg_pri) \ 158 ((pg_pri) & (DCBX_PFC_PRI_PAUSE_MASK(bp))) 159 #define DCBX_PFC_PRI_GET_NON_PAUSE(bp, pg_pri) \ 160 (DCBX_PFC_PRI_NON_PAUSE_MASK(bp) & (pg_pri)) 161 #define DCBX_IS_PFC_PRI_SOME_PAUSE(bp, pg_pri) \ 162 (0 != DCBX_PFC_PRI_GET_PAUSE(bp, pg_pri)) 163 #define IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pg_pri) \ 164 (pg_pri == DCBX_PFC_PRI_GET_PAUSE((bp), (pg_pri))) 165 #define IS_DCBX_PFC_PRI_ONLY_NON_PAUSE(bp, pg_pri)\ 166 ((pg_pri) == DCBX_PFC_PRI_GET_NON_PAUSE((bp), (pg_pri))) 167 #define IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pg_pri) \ 168 (!(IS_DCBX_PFC_PRI_ONLY_NON_PAUSE((bp), (pg_pri)) || \ 169 IS_DCBX_PFC_PRI_ONLY_PAUSE((bp), (pg_pri)))) 170 171 172 struct pg_entry_help_data { 173 u8 num_of_dif_pri; 174 u8 pg; 175 u32 pg_priority; 176 }; 177 178 struct pg_help_data { 179 struct pg_entry_help_data data[LLFC_DRIVER_TRAFFIC_TYPE_MAX]; 180 u8 num_of_pg; 181 }; 182 183 /* forward DCB/PFC related declarations */ 184 struct bnx2x; 185 void bnx2x_dcbx_update(struct work_struct *work); 186 void bnx2x_dcbx_init_params(struct bnx2x *bp); 187 void bnx2x_dcbx_set_state(struct bnx2x *bp, bool dcb_on, u32 dcbx_enabled); 188 189 enum { 190 BNX2X_DCBX_STATE_NEG_RECEIVED = 0x1, 191 BNX2X_DCBX_STATE_TX_PAUSED, 192 BNX2X_DCBX_STATE_TX_RELEASED 193 }; 194 195 void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state); 196 void bnx2x_dcbx_pmf_update(struct bnx2x *bp); 197 /* DCB netlink */ 198 #ifdef BCM_DCBNL 199 extern const struct dcbnl_rtnl_ops bnx2x_dcbnl_ops; 200 int bnx2x_dcbnl_update_applist(struct bnx2x *bp, bool delall); 201 #endif /* BCM_DCBNL */ 202 203 #endif /* BNX2X_DCB_H */ 204