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 int ice_init_dcb(struct ice_hw *hw, bool enable_mib_change);
148 int
149 ice_query_port_ets(struct ice_port_info *pi,
150 struct ice_aqc_port_ets_elem *buf, u16 buf_size,
151 struct ice_sq_cd *cmd_details);
152 #ifdef CONFIG_DCB
153 int
154 ice_aq_stop_lldp(struct ice_hw *hw, bool shutdown_lldp_agent, bool persist,
155 struct ice_sq_cd *cd);
156 int ice_aq_start_lldp(struct ice_hw *hw, bool persist, struct ice_sq_cd *cd);
157 int
158 ice_aq_start_stop_dcbx(struct ice_hw *hw, bool start_dcbx_agent,
159 bool *dcbx_agent_status, struct ice_sq_cd *cd);
160 int ice_cfg_lldp_mib_change(struct ice_hw *hw, bool ena_mib);
161 #else /* CONFIG_DCB */
162 static inline int
ice_aq_stop_lldp(struct ice_hw __always_unused * hw,bool __always_unused shutdown_lldp_agent,bool __always_unused persist,struct ice_sq_cd __always_unused * cd)163 ice_aq_stop_lldp(struct ice_hw __always_unused *hw,
164 bool __always_unused shutdown_lldp_agent,
165 bool __always_unused persist,
166 struct ice_sq_cd __always_unused *cd)
167 {
168 return 0;
169 }
170
171 static inline int
ice_aq_start_lldp(struct ice_hw __always_unused * hw,bool __always_unused persist,struct ice_sq_cd __always_unused * cd)172 ice_aq_start_lldp(struct ice_hw __always_unused *hw,
173 bool __always_unused persist,
174 struct ice_sq_cd __always_unused *cd)
175 {
176 return 0;
177 }
178
179 static inline int
ice_aq_start_stop_dcbx(struct ice_hw __always_unused * hw,bool __always_unused start_dcbx_agent,bool * dcbx_agent_status,struct ice_sq_cd __always_unused * cd)180 ice_aq_start_stop_dcbx(struct ice_hw __always_unused *hw,
181 bool __always_unused start_dcbx_agent,
182 bool *dcbx_agent_status,
183 struct ice_sq_cd __always_unused *cd)
184 {
185 *dcbx_agent_status = false;
186
187 return 0;
188 }
189
190 static inline int
ice_cfg_lldp_mib_change(struct ice_hw __always_unused * hw,bool __always_unused ena_mib)191 ice_cfg_lldp_mib_change(struct ice_hw __always_unused *hw,
192 bool __always_unused ena_mib)
193 {
194 return 0;
195 }
196
197 #endif /* CONFIG_DCB */
198 #endif /* _ICE_DCB_H_ */
199