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