drivers/net/ethernet/intel/ice/ice_dcb.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /* Copyright (c) 2019, Intel Corporation. */
   3
   4 #ifndef _ICE_DCB_H_
   5 #define _ICE_DCB_H_
   6
   7 #include "ice_type.h"
   8 #include <scsi/iscsi_proto.h>
   9
  10 #define ICE_DCBX_STATUS_NOT_STARTED     0
  11 #define ICE_DCBX_STATUS_IN_PROGRESS     1
  12 #define ICE_DCBX_STATUS_DONE            2
  13 #define ICE_DCBX_STATUS_DIS             7
  14
  15 #define ICE_TLV_TYPE_END                0
  16 #define ICE_TLV_TYPE_ORG                127
  17
  18 #define ICE_IEEE_8021QAZ_OUI            0x0080C2
  19 #define ICE_IEEE_SUBTYPE_ETS_CFG        9
  20 #define ICE_IEEE_SUBTYPE_ETS_REC        10
  21 #define ICE_IEEE_SUBTYPE_PFC_CFG        11
  22 #define ICE_IEEE_SUBTYPE_APP_PRI        12
  23
  24 #define ICE_CEE_DCBX_OUI                0x001B21
  25 #define ICE_CEE_DCBX_TYPE               2
  26
  27 #define ICE_DSCP_OUI                    0xFFFFFF
  28 #define ICE_DSCP_SUBTYPE_DSCP2UP        0x41
  29 #define ICE_DSCP_SUBTYPE_ENFORCE        0x42
  30 #define ICE_DSCP_SUBTYPE_TCBW           0x43
  31 #define ICE_DSCP_SUBTYPE_PFC            0x44
  32 #define ICE_DSCP_IPV6_OFFSET            80
  33
  34 #define ICE_CEE_SUBTYPE_PG_CFG          2
  35 #define ICE_CEE_SUBTYPE_PFC_CFG         3
  36 #define ICE_CEE_SUBTYPE_APP_PRI         4
  37 #define ICE_CEE_MAX_FEAT_TYPE           3
  38 /* Defines for LLDP TLV header */
  39 #define ICE_LLDP_TLV_LEN_S              0
  40 #define ICE_LLDP_TLV_LEN_M              (0x01FF << ICE_LLDP_TLV_LEN_S)
  41 #define ICE_LLDP_TLV_TYPE_S             9
  42 #define ICE_LLDP_TLV_TYPE_M             (0x7F << ICE_LLDP_TLV_TYPE_S)
  43 #define ICE_LLDP_TLV_SUBTYPE_S          0
  44 #define ICE_LLDP_TLV_SUBTYPE_M          (0xFF << ICE_LLDP_TLV_SUBTYPE_S)
  45 #define ICE_LLDP_TLV_OUI_S              8
  46 #define ICE_LLDP_TLV_OUI_M              (0xFFFFFFUL << ICE_LLDP_TLV_OUI_S)
  47
  48 /* Defines for IEEE ETS TLV */
  49 #define ICE_IEEE_ETS_MAXTC_S    0
  50 #define ICE_IEEE_ETS_MAXTC_M            (0x7 << ICE_IEEE_ETS_MAXTC_S)
  51 #define ICE_IEEE_ETS_CBS_S              6
  52 #define ICE_IEEE_ETS_CBS_M              BIT(ICE_IEEE_ETS_CBS_S)
  53 #define ICE_IEEE_ETS_WILLING_S          7
  54 #define ICE_IEEE_ETS_WILLING_M          BIT(ICE_IEEE_ETS_WILLING_S)
  55 #define ICE_IEEE_ETS_PRIO_0_S           0
  56 #define ICE_IEEE_ETS_PRIO_0_M           (0x7 << ICE_IEEE_ETS_PRIO_0_S)
  57 #define ICE_IEEE_ETS_PRIO_1_S           4
  58 #define ICE_IEEE_ETS_PRIO_1_M           (0x7 << ICE_IEEE_ETS_PRIO_1_S)
  59 #define ICE_CEE_PGID_PRIO_0_S           0
  60 #define ICE_CEE_PGID_PRIO_0_M           (0xF << ICE_CEE_PGID_PRIO_0_S)
  61 #define ICE_CEE_PGID_PRIO_1_S           4
  62 #define ICE_CEE_PGID_PRIO_1_M           (0xF << ICE_CEE_PGID_PRIO_1_S)
  63 #define ICE_CEE_PGID_STRICT             15
  64
  65 /* Defines for IEEE TSA types */
  66 #define ICE_IEEE_TSA_STRICT             0
  67 #define ICE_IEEE_TSA_ETS                2
  68
  69 /* Defines for IEEE PFC TLV */
  70 #define ICE_IEEE_PFC_CAP_S              0
  71 #define ICE_IEEE_PFC_CAP_M              (0xF << ICE_IEEE_PFC_CAP_S)
  72 #define ICE_IEEE_PFC_MBC_S              6
  73 #define ICE_IEEE_PFC_MBC_M              BIT(ICE_IEEE_PFC_MBC_S)
  74 #define ICE_IEEE_PFC_WILLING_S          7
  75 #define ICE_IEEE_PFC_WILLING_M          BIT(ICE_IEEE_PFC_WILLING_S)
  76
  77 /* Defines for IEEE APP TLV */
  78 #define ICE_IEEE_APP_SEL_S              0
  79 #define ICE_IEEE_APP_SEL_M              (0x7 << ICE_IEEE_APP_SEL_S)
  80 #define ICE_IEEE_APP_PRIO_S             5
  81 #define ICE_IEEE_APP_PRIO_M             (0x7 << ICE_IEEE_APP_PRIO_S)
  82
  83 /* TLV definitions for preparing MIB */
  84 #define ICE_IEEE_TLV_ID_ETS_CFG         3
  85 #define ICE_IEEE_TLV_ID_ETS_REC         4
  86 #define ICE_IEEE_TLV_ID_PFC_CFG         5
  87 #define ICE_IEEE_TLV_ID_APP_PRI         6
  88 #define ICE_TLV_ID_END_OF_LLDPPDU       7
  89 #define ICE_TLV_ID_START                ICE_IEEE_TLV_ID_ETS_CFG
  90 #define ICE_TLV_ID_DSCP_UP              3
  91 #define ICE_TLV_ID_DSCP_ENF             4
  92 #define ICE_TLV_ID_DSCP_TC_BW           5
  93 #define ICE_TLV_ID_DSCP_TO_PFC          6
  94
  95 #define ICE_IEEE_ETS_TLV_LEN            25
  96 #define ICE_IEEE_PFC_TLV_LEN            6
  97 #define ICE_IEEE_APP_TLV_LEN            11
  98
  99 #define ICE_DSCP_UP_TLV_LEN             148
 100 #define ICE_DSCP_ENF_TLV_LEN            132
 101 #define ICE_DSCP_TC_BW_TLV_LEN          25
 102 #define ICE_DSCP_PFC_TLV_LEN            6
 103
 104 /* IEEE 802.1AB LLDP Organization specific TLV */
 105 struct ice_lldp_org_tlv {
 106         __be16 typelen;
 107         __be32 ouisubtype;
 108         u8 tlvinfo[];
 109 } __packed;
 110
 111 struct ice_cee_tlv_hdr {
 112         __be16 typelen;
 113         u8 operver;
 114         u8 maxver;
 115 };
 116
 117 struct ice_cee_ctrl_tlv {
 118         struct ice_cee_tlv_hdr hdr;
 119         __be32 seqno;
 120         __be32 ackno;
 121 };
 122
 123 struct ice_cee_feat_tlv {
 124         struct ice_cee_tlv_hdr hdr;
 125         u8 en_will_err; /* Bits: |En|Will|Err|Reserved(5)| */
 126 #define ICE_CEE_FEAT_TLV_ENA_M          0x80
 127 #define ICE_CEE_FEAT_TLV_WILLING_M      0x40
 128 #define ICE_CEE_FEAT_TLV_ERR_M          0x20
 129         u8 subtype;
 130         u8 tlvinfo[];
 131 };
 132
 133 struct ice_cee_app_prio {
 134         __be16 protocol;
 135         u8 upper_oui_sel; /* Bits: |Upper OUI(6)|Selector(2)| */
 136 #define ICE_CEE_APP_SELECTOR_M  0x03
 137         __be16 lower_oui;
 138         u8 prio_map;
 139 } __packed;
 140
 141 int ice_aq_set_pfc_mode(struct ice_hw *hw, u8 pfc_mode, struct ice_sq_cd *cd);
 142 int
 143 ice_aq_get_dcb_cfg(struct ice_hw *hw, u8 mib_type, u8 bridgetype,
 144                    struct ice_dcbx_cfg *dcbcfg);
 145 int ice_get_dcb_cfg(struct ice_port_info *pi);
 146 int ice_set_dcb_cfg(struct ice_port_info *pi);
 147 void ice_get_dcb_cfg_from_mib_change(struct ice_port_info *pi,
 148                                      struct ice_rq_event_info *event);
 149 int ice_init_dcb(struct ice_hw *hw, bool enable_mib_change);
 150 int
 151 ice_query_port_ets(struct ice_port_info *pi,
 152                    struct ice_aqc_port_ets_elem *buf, u16 buf_size,
 153                    struct ice_sq_cd *cmd_details);
 154 #ifdef CONFIG_DCB
 155 int
 156 ice_aq_stop_lldp(struct ice_hw *hw, bool shutdown_lldp_agent, bool persist,
 157                  struct ice_sq_cd *cd);
 158 int ice_aq_start_lldp(struct ice_hw *hw, bool persist, struct ice_sq_cd *cd);
 159 int
 160 ice_aq_start_stop_dcbx(struct ice_hw *hw, bool start_dcbx_agent,
 161                        bool *dcbx_agent_status, struct ice_sq_cd *cd);
 162 int ice_cfg_lldp_mib_change(struct ice_hw *hw, bool ena_mib);
 163 #else /* CONFIG_DCB */
 164 static inline int
 165 ice_aq_stop_lldp(struct ice_hw __always_unused *hw,
 166                  bool __always_unused shutdown_lldp_agent,
 167                  bool __always_unused persist,
 168                  struct ice_sq_cd __always_unused *cd)
 169 {
 170         return 0;
 171 }
 172
 173 static inline int
 174 ice_aq_start_lldp(struct ice_hw __always_unused *hw,
 175                   bool __always_unused persist,
 176                   struct ice_sq_cd __always_unused *cd)
 177 {
 178         return 0;
 179 }
 180
 181 static inline int
 182 ice_aq_start_stop_dcbx(struct ice_hw __always_unused *hw,
 183                        bool __always_unused start_dcbx_agent,
 184                        bool *dcbx_agent_status,
 185                        struct ice_sq_cd __always_unused *cd)
 186 {
 187         *dcbx_agent_status = false;
 188
 189         return 0;
 190 }
 191
 192 static inline int
 193 ice_cfg_lldp_mib_change(struct ice_hw __always_unused *hw,
 194                         bool __always_unused ena_mib)
 195 {
 196         return 0;
 197 }
 198
 199 #endif /* CONFIG_DCB */
 200 #endif /* _ICE_DCB_H_ */