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_ */
201