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 */
87 struct ice_lldp_org_tlv {
88 	__be16 typelen;
89 	__be32 ouisubtype;
90 	u8 tlvinfo[1];
91 } __packed;
92 
93 struct ice_cee_tlv_hdr {
94 	__be16 typelen;
95 	u8 operver;
96 	u8 maxver;
97 };
98 
99 struct ice_cee_ctrl_tlv {
100 	struct ice_cee_tlv_hdr hdr;
101 	__be32 seqno;
102 	__be32 ackno;
103 };
104 
105 struct 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[1];
113 };
114 
115 struct 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 
123 u8 ice_get_dcbx_status(struct ice_hw *hw);
124 enum ice_status ice_lldp_to_dcb_cfg(u8 *lldpmib, struct ice_dcbx_cfg *dcbcfg);
125 enum ice_status ice_get_dcb_cfg(struct ice_port_info *pi);
126 enum ice_status ice_set_dcb_cfg(struct ice_port_info *pi);
127 enum ice_status ice_init_dcb(struct ice_hw *hw);
128 enum ice_status
129 ice_query_port_ets(struct ice_port_info *pi,
130 		   struct ice_aqc_port_ets_elem *buf, u16 buf_size,
131 		   struct ice_sq_cd *cmd_details);
132 #ifdef CONFIG_DCB
133 enum ice_status
134 ice_aq_stop_lldp(struct ice_hw *hw, bool shutdown_lldp_agent,
135 		 struct ice_sq_cd *cd);
136 enum ice_status ice_aq_start_lldp(struct ice_hw *hw, struct ice_sq_cd *cd);
137 enum ice_status
138 ice_aq_start_stop_dcbx(struct ice_hw *hw, bool start_dcbx_agent,
139 		       bool *dcbx_agent_status, struct ice_sq_cd *cd);
140 enum ice_status
141 ice_aq_cfg_lldp_mib_change(struct ice_hw *hw, bool ena_update,
142 			   struct ice_sq_cd *cd);
143 #else /* CONFIG_DCB */
144 static inline enum ice_status
145 ice_aq_stop_lldp(struct ice_hw __always_unused *hw,
146 		 bool __always_unused shutdown_lldp_agent,
147 		 struct ice_sq_cd __always_unused *cd)
148 {
149 	return 0;
150 }
151 
152 static inline enum ice_status
153 ice_aq_start_lldp(struct ice_hw __always_unused *hw,
154 		  struct ice_sq_cd __always_unused *cd)
155 {
156 	return 0;
157 }
158 
159 static inline enum ice_status
160 ice_aq_start_stop_dcbx(struct ice_hw __always_unused *hw,
161 		       bool __always_unused start_dcbx_agent,
162 		       bool *dcbx_agent_status,
163 		       struct ice_sq_cd __always_unused *cd)
164 {
165 	*dcbx_agent_status = false;
166 
167 	return 0;
168 }
169 
170 static inline enum ice_status
171 ice_aq_cfg_lldp_mib_change(struct ice_hw __always_unused *hw,
172 			   bool __always_unused ena_update,
173 			   struct ice_sq_cd __always_unused *cd)
174 {
175 	return 0;
176 }
177 
178 #endif /* CONFIG_DCB */
179 #endif /* _ICE_DCB_H_ */
180