1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright(c) 2013 - 2021 Intel Corporation. */
3
4 #ifndef _I40E_DCB_H_
5 #define _I40E_DCB_H_
6
7 #include "i40e_type.h"
8
9 #define I40E_DCBX_STATUS_NOT_STARTED 0
10 #define I40E_DCBX_STATUS_IN_PROGRESS 1
11 #define I40E_DCBX_STATUS_DONE 2
12 #define I40E_DCBX_STATUS_MULTIPLE_PEERS 3
13 #define I40E_DCBX_STATUS_DISABLED 7
14
15 #define I40E_TLV_TYPE_END 0
16 #define I40E_TLV_TYPE_ORG 127
17
18 #define I40E_IEEE_8021QAZ_OUI 0x0080C2
19 #define I40E_IEEE_SUBTYPE_ETS_CFG 9
20 #define I40E_IEEE_SUBTYPE_ETS_REC 10
21 #define I40E_IEEE_SUBTYPE_PFC_CFG 11
22 #define I40E_IEEE_SUBTYPE_APP_PRI 12
23
24 #define I40E_CEE_DCBX_OUI 0x001b21
25 #define I40E_CEE_DCBX_TYPE 2
26
27 #define I40E_CEE_SUBTYPE_CTRL 1
28 #define I40E_CEE_SUBTYPE_PG_CFG 2
29 #define I40E_CEE_SUBTYPE_PFC_CFG 3
30 #define I40E_CEE_SUBTYPE_APP_PRI 4
31
32 #define I40E_CEE_MAX_FEAT_TYPE 3
33 #define I40E_LLDP_CURRENT_STATUS_XL710_OFFSET 0x2B
34 #define I40E_LLDP_CURRENT_STATUS_X722_OFFSET 0x31
35 #define I40E_LLDP_CURRENT_STATUS_OFFSET 1
36 #define I40E_LLDP_CURRENT_STATUS_SIZE 1
37
38 /* Defines for LLDP TLV header */
39 #define I40E_LLDP_TLV_LEN_SHIFT 0
40 #define I40E_LLDP_TLV_LEN_MASK (0x01FF << I40E_LLDP_TLV_LEN_SHIFT)
41 #define I40E_LLDP_TLV_TYPE_SHIFT 9
42 #define I40E_LLDP_TLV_TYPE_MASK (0x7F << I40E_LLDP_TLV_TYPE_SHIFT)
43 #define I40E_LLDP_TLV_SUBTYPE_SHIFT 0
44 #define I40E_LLDP_TLV_SUBTYPE_MASK (0xFF << I40E_LLDP_TLV_SUBTYPE_SHIFT)
45 #define I40E_LLDP_TLV_OUI_SHIFT 8
46 #define I40E_LLDP_TLV_OUI_MASK (0xFFFFFF << I40E_LLDP_TLV_OUI_SHIFT)
47
48 /* Defines for IEEE ETS TLV */
49 #define I40E_IEEE_ETS_MAXTC_SHIFT 0
50 #define I40E_IEEE_ETS_MAXTC_MASK (0x7 << I40E_IEEE_ETS_MAXTC_SHIFT)
51 #define I40E_IEEE_ETS_CBS_SHIFT 6
52 #define I40E_IEEE_ETS_CBS_MASK BIT(I40E_IEEE_ETS_CBS_SHIFT)
53 #define I40E_IEEE_ETS_WILLING_SHIFT 7
54 #define I40E_IEEE_ETS_WILLING_MASK BIT(I40E_IEEE_ETS_WILLING_SHIFT)
55 #define I40E_IEEE_ETS_PRIO_0_SHIFT 0
56 #define I40E_IEEE_ETS_PRIO_0_MASK (0x7 << I40E_IEEE_ETS_PRIO_0_SHIFT)
57 #define I40E_IEEE_ETS_PRIO_1_SHIFT 4
58 #define I40E_IEEE_ETS_PRIO_1_MASK (0x7 << I40E_IEEE_ETS_PRIO_1_SHIFT)
59 #define I40E_CEE_PGID_PRIO_0_SHIFT 0
60 #define I40E_CEE_PGID_PRIO_0_MASK (0xF << I40E_CEE_PGID_PRIO_0_SHIFT)
61 #define I40E_CEE_PGID_PRIO_1_SHIFT 4
62 #define I40E_CEE_PGID_PRIO_1_MASK (0xF << I40E_CEE_PGID_PRIO_1_SHIFT)
63 #define I40E_CEE_PGID_STRICT 15
64
65 /* Defines for IEEE TSA types */
66 #define I40E_IEEE_TSA_STRICT 0
67 #define I40E_IEEE_TSA_ETS 2
68
69 /* Defines for IEEE PFC TLV */
70 #define I40E_DCB_PFC_ENABLED 2
71 #define I40E_DCB_PFC_FORCED_NUM_TC 2
72 #define I40E_IEEE_PFC_CAP_SHIFT 0
73 #define I40E_IEEE_PFC_CAP_MASK (0xF << I40E_IEEE_PFC_CAP_SHIFT)
74 #define I40E_IEEE_PFC_MBC_SHIFT 6
75 #define I40E_IEEE_PFC_MBC_MASK BIT(I40E_IEEE_PFC_MBC_SHIFT)
76 #define I40E_IEEE_PFC_WILLING_SHIFT 7
77 #define I40E_IEEE_PFC_WILLING_MASK BIT(I40E_IEEE_PFC_WILLING_SHIFT)
78
79 /* Defines for IEEE APP TLV */
80 #define I40E_IEEE_APP_SEL_SHIFT 0
81 #define I40E_IEEE_APP_SEL_MASK (0x7 << I40E_IEEE_APP_SEL_SHIFT)
82 #define I40E_IEEE_APP_PRIO_SHIFT 5
83 #define I40E_IEEE_APP_PRIO_MASK (0x7 << I40E_IEEE_APP_PRIO_SHIFT)
84
85 /* TLV definitions for preparing MIB */
86 #define I40E_TLV_ID_CHASSIS_ID 0
87 #define I40E_TLV_ID_PORT_ID 1
88 #define I40E_TLV_ID_TIME_TO_LIVE 2
89 #define I40E_IEEE_TLV_ID_ETS_CFG 3
90 #define I40E_IEEE_TLV_ID_ETS_REC 4
91 #define I40E_IEEE_TLV_ID_PFC_CFG 5
92 #define I40E_IEEE_TLV_ID_APP_PRI 6
93 #define I40E_TLV_ID_END_OF_LLDPPDU 7
94 #define I40E_TLV_ID_START I40E_IEEE_TLV_ID_ETS_CFG
95
96 #define I40E_IEEE_TLV_HEADER_LENGTH 2
97 #define I40E_IEEE_ETS_TLV_LENGTH 25
98 #define I40E_IEEE_PFC_TLV_LENGTH 6
99 #define I40E_IEEE_APP_TLV_LENGTH 11
100
101 /* Defines for default SW DCB config */
102 #define I40E_IEEE_DEFAULT_ETS_TCBW 100
103 #define I40E_IEEE_DEFAULT_ETS_WILLING 1
104 #define I40E_IEEE_DEFAULT_PFC_WILLING 1
105 #define I40E_IEEE_DEFAULT_NUM_APPS 1
106 #define I40E_IEEE_DEFAULT_APP_PRIO 3
107
108 #pragma pack(1)
109 /* IEEE 802.1AB LLDP Organization specific TLV */
110 struct i40e_lldp_org_tlv {
111 __be16 typelength;
112 __be32 ouisubtype;
113 u8 tlvinfo[1];
114 };
115
116 struct i40e_cee_tlv_hdr {
117 __be16 typelen;
118 u8 operver;
119 u8 maxver;
120 };
121
122 struct i40e_cee_ctrl_tlv {
123 struct i40e_cee_tlv_hdr hdr;
124 __be32 seqno;
125 __be32 ackno;
126 };
127
128 struct i40e_cee_feat_tlv {
129 struct i40e_cee_tlv_hdr hdr;
130 u8 en_will_err; /* Bits: |En|Will|Err|Reserved(5)| */
131 #define I40E_CEE_FEAT_TLV_ENABLE_MASK 0x80
132 #define I40E_CEE_FEAT_TLV_WILLING_MASK 0x40
133 #define I40E_CEE_FEAT_TLV_ERR_MASK 0x20
134 u8 subtype;
135 u8 tlvinfo[1];
136 };
137
138 struct i40e_cee_app_prio {
139 __be16 protocol;
140 u8 upper_oui_sel; /* Bits: |Upper OUI(6)|Selector(2)| */
141 #define I40E_CEE_APP_SELECTOR_MASK 0x03
142 __be16 lower_oui;
143 u8 prio_map;
144 };
145 #pragma pack()
146
147 enum i40e_get_fw_lldp_status_resp {
148 I40E_GET_FW_LLDP_STATUS_DISABLED = 0,
149 I40E_GET_FW_LLDP_STATUS_ENABLED = 1
150 };
151
152 /* Data structures to pass for SW DCBX */
153 struct i40e_rx_pb_config {
154 u32 shared_pool_size;
155 u32 shared_pool_high_wm;
156 u32 shared_pool_low_wm;
157 u32 shared_pool_high_thresh[I40E_MAX_TRAFFIC_CLASS];
158 u32 shared_pool_low_thresh[I40E_MAX_TRAFFIC_CLASS];
159 u32 tc_pool_size[I40E_MAX_TRAFFIC_CLASS];
160 u32 tc_pool_high_wm[I40E_MAX_TRAFFIC_CLASS];
161 u32 tc_pool_low_wm[I40E_MAX_TRAFFIC_CLASS];
162 };
163
164 enum i40e_dcb_arbiter_mode {
165 I40E_DCB_ARB_MODE_STRICT_PRIORITY = 0,
166 I40E_DCB_ARB_MODE_ROUND_ROBIN = 1
167 };
168
169 #define I40E_DCB_DEFAULT_MAX_EXPONENT 0xB
170 #define I40E_DEFAULT_PAUSE_TIME 0xffff
171 #define I40E_MAX_FRAME_SIZE 4608 /* 4.5 KB */
172
173 #define I40E_DEVICE_RPB_SIZE 968000 /* 968 KB */
174
175 /* BitTimes (BT) conversion */
176 #define I40E_BT2KB(BT) (((BT) + (8 * 1024 - 1)) / (8 * 1024))
177 #define I40E_B2BT(BT) ((BT) * 8)
178 #define I40E_BT2B(BT) (((BT) + (8 - 1)) / 8)
179
180 /* Max Frame(TC) = MFS(max) + MFS(TC) */
181 #define I40E_MAX_FRAME_TC(mfs_max, mfs_tc) I40E_B2BT((mfs_max) + (mfs_tc))
182
183 /* EEE Tx LPI Exit time in Bit Times */
184 #define I40E_EEE_TX_LPI_EXIT_TIME 142500
185
186 /* PCI Round Trip Time in Bit Times */
187 #define I40E_PCIRTT_LINK_SPEED_10G 20000
188 #define I40E_PCIRTT_BYTE_LINK_SPEED_20G 40000
189 #define I40E_PCIRTT_BYTE_LINK_SPEED_40G 80000
190
191 /* PFC Frame Delay Bit Times */
192 #define I40E_PFC_FRAME_DELAY 672
193
194 /* Worst case Cable (10GBase-T) Delay Bit Times */
195 #define I40E_CABLE_DELAY 5556
196
197 /* Higher Layer Delay @10G Bit Times */
198 #define I40E_HIGHER_LAYER_DELAY_10G 6144
199
200 /* Interface Delays in Bit Times */
201 /* TODO: Add for other link speeds 20G/40G/etc. */
202 #define I40E_INTERFACE_DELAY_10G_MAC_CONTROL 8192
203 #define I40E_INTERFACE_DELAY_10G_MAC 8192
204 #define I40E_INTERFACE_DELAY_10G_RS 8192
205
206 #define I40E_INTERFACE_DELAY_XGXS 2048
207 #define I40E_INTERFACE_DELAY_XAUI 2048
208
209 #define I40E_INTERFACE_DELAY_10G_BASEX_PCS 2048
210 #define I40E_INTERFACE_DELAY_10G_BASER_PCS 3584
211 #define I40E_INTERFACE_DELAY_LX4_PMD 512
212 #define I40E_INTERFACE_DELAY_CX4_PMD 512
213 #define I40E_INTERFACE_DELAY_SERIAL_PMA 512
214 #define I40E_INTERFACE_DELAY_PMD 512
215
216 #define I40E_INTERFACE_DELAY_10G_BASET 25600
217
218 /* Hardware RX DCB config related defines */
219 #define I40E_DCB_1_PORT_THRESHOLD 0xF
220 #define I40E_DCB_1_PORT_FIFO_SIZE 0x10
221 #define I40E_DCB_2_PORT_THRESHOLD_LOW_NUM_TC 0xF
222 #define I40E_DCB_2_PORT_FIFO_SIZE_LOW_NUM_TC 0x10
223 #define I40E_DCB_2_PORT_THRESHOLD_HIGH_NUM_TC 0xC
224 #define I40E_DCB_2_PORT_FIFO_SIZE_HIGH_NUM_TC 0x8
225 #define I40E_DCB_4_PORT_THRESHOLD_LOW_NUM_TC 0x9
226 #define I40E_DCB_4_PORT_FIFO_SIZE_LOW_NUM_TC 0x8
227 #define I40E_DCB_4_PORT_THRESHOLD_HIGH_NUM_TC 0x6
228 #define I40E_DCB_4_PORT_FIFO_SIZE_HIGH_NUM_TC 0x4
229 #define I40E_DCB_WATERMARK_START_FACTOR 0x2
230
231 /* delay values for with 10G BaseT in Bit Times */
232 #define I40E_INTERFACE_DELAY_10G_COPPER \
233 (I40E_INTERFACE_DELAY_10G_MAC + (2 * I40E_INTERFACE_DELAY_XAUI) \
234 + I40E_INTERFACE_DELAY_10G_BASET)
235 #define I40E_DV_TC(mfs_max, mfs_tc) \
236 ((2 * I40E_MAX_FRAME_TC(mfs_max, mfs_tc)) \
237 + I40E_PFC_FRAME_DELAY \
238 + (2 * I40E_CABLE_DELAY) \
239 + (2 * I40E_INTERFACE_DELAY_10G_COPPER) \
240 + I40E_HIGHER_LAYER_DELAY_10G)
I40E_STD_DV_TC(u32 mfs_max,u32 mfs_tc)241 static inline u32 I40E_STD_DV_TC(u32 mfs_max, u32 mfs_tc)
242 {
243 return I40E_DV_TC(mfs_max, mfs_tc) + I40E_B2BT(mfs_max);
244 }
245
246 /* APIs for SW DCBX */
247 void i40e_dcb_hw_rx_fifo_config(struct i40e_hw *hw,
248 enum i40e_dcb_arbiter_mode ets_mode,
249 enum i40e_dcb_arbiter_mode non_ets_mode,
250 u32 max_exponent, u8 lltc_map);
251 void i40e_dcb_hw_rx_cmd_monitor_config(struct i40e_hw *hw,
252 u8 num_tc, u8 num_ports);
253 void i40e_dcb_hw_pfc_config(struct i40e_hw *hw,
254 u8 pfc_en, u8 *prio_tc);
255 void i40e_dcb_hw_set_num_tc(struct i40e_hw *hw, u8 num_tc);
256 u8 i40e_dcb_hw_get_num_tc(struct i40e_hw *hw);
257 void i40e_dcb_hw_rx_ets_bw_config(struct i40e_hw *hw, u8 *bw_share,
258 u8 *mode, u8 *prio_type);
259 void i40e_dcb_hw_rx_up2tc_config(struct i40e_hw *hw, u8 *prio_tc);
260 void i40e_dcb_hw_calculate_pool_sizes(struct i40e_hw *hw,
261 u8 num_ports, bool eee_enabled,
262 u8 pfc_en, u32 *mfs_tc,
263 struct i40e_rx_pb_config *pb_cfg);
264 void i40e_dcb_hw_rx_pb_config(struct i40e_hw *hw,
265 struct i40e_rx_pb_config *old_pb_cfg,
266 struct i40e_rx_pb_config *new_pb_cfg);
267 i40e_status i40e_get_dcbx_status(struct i40e_hw *hw,
268 u16 *status);
269 i40e_status i40e_lldp_to_dcb_config(u8 *lldpmib,
270 struct i40e_dcbx_config *dcbcfg);
271 i40e_status i40e_aq_get_dcb_config(struct i40e_hw *hw, u8 mib_type,
272 u8 bridgetype,
273 struct i40e_dcbx_config *dcbcfg);
274 i40e_status i40e_get_dcb_config(struct i40e_hw *hw);
275 i40e_status i40e_init_dcb(struct i40e_hw *hw,
276 bool enable_mib_change);
277 enum i40e_status_code
278 i40e_get_fw_lldp_status(struct i40e_hw *hw,
279 enum i40e_get_fw_lldp_status_resp *lldp_status);
280 i40e_status i40e_set_dcb_config(struct i40e_hw *hw);
281 i40e_status i40e_dcb_config_to_lldp(u8 *lldpmib, u16 *miblen,
282 struct i40e_dcbx_config *dcbcfg);
283 #endif /* _I40E_DCB_H_ */
284