FreeBSD/Linux Kernel Cross Reference
sys/dev/bxe/bxe_dcb.h
1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2007-2014 QLogic Corporation. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS'
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
26 * THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
31
32 #ifndef BXE_DCB_H
33 #define BXE_DCB_H
34
35 #define LLFC_DRIVER_TRAFFIC_TYPE_MAX 3 /* NW, iSCSI, FCoE */
36 struct bxe_dcbx_app_params {
37 uint32_t enabled;
38 uint32_t traffic_type_priority[LLFC_DRIVER_TRAFFIC_TYPE_MAX];
39 };
40
41 #define DCBX_COS_MAX_NUM_E2 DCBX_E2E3_MAX_NUM_COS
42 /* bxe currently limits numbers of supported COSes to 3 to be extended to 6 */
43 #define BXE_MAX_COS_SUPPORT 3
44 #define DCBX_COS_MAX_NUM_E3B0 BXE_MAX_COS_SUPPORT
45 #define DCBX_COS_MAX_NUM BXE_MAX_COS_SUPPORT
46
47 struct bxe_dcbx_cos_params {
48 uint32_t bw_tbl;
49 uint32_t pri_bitmask;
50 /*
51 * strict priority: valid values are 0..5; 0 is highest priority.
52 * There can't be two COSes with the same priority.
53 */
54 uint8_t strict;
55 #define BXE_DCBX_STRICT_INVALID DCBX_COS_MAX_NUM
56 #define BXE_DCBX_STRICT_COS_HIGHEST 0
57 #define BXE_DCBX_STRICT_COS_NEXT_LOWER_PRI(sp) ((sp) + 1)
58 uint8_t pauseable;
59 };
60
61 struct bxe_dcbx_pg_params {
62 uint32_t enabled;
63 uint8_t num_of_cos; /* valid COS entries */
64 struct bxe_dcbx_cos_params cos_params[DCBX_COS_MAX_NUM];
65 };
66
67 struct bxe_dcbx_pfc_params {
68 uint32_t enabled;
69 uint32_t priority_non_pauseable_mask;
70 };
71
72 struct bxe_dcbx_port_params {
73 struct bxe_dcbx_pfc_params pfc;
74 struct bxe_dcbx_pg_params ets;
75 struct bxe_dcbx_app_params app;
76 };
77
78 #define BXE_DCBX_CONFIG_INV_VALUE (0xFFFFFFFF)
79 #define BXE_DCBX_OVERWRITE_SETTINGS_DISABLE 0
80 #define BXE_DCBX_OVERWRITE_SETTINGS_ENABLE 1
81 #define BXE_DCBX_OVERWRITE_SETTINGS_INVALID (BXE_DCBX_CONFIG_INV_VALUE)
82 #define BXE_IS_ETS_ENABLED(sc) \
83 ((sc)->dcb_state == BXE_DCB_STATE_ON && \
84 (sc)->dcbx_port_params.ets.enabled)
85
86 struct bxe_config_lldp_params {
87 uint32_t overwrite_settings;
88 uint32_t msg_tx_hold;
89 uint32_t msg_fast_tx;
90 uint32_t tx_credit_max;
91 uint32_t msg_tx_interval;
92 uint32_t tx_fast;
93 };
94
95 struct bxe_lldp_params_get {
96 uint32_t ver_num;
97 #define LLDP_PARAMS_VER_NUM 2
98 struct bxe_config_lldp_params config_lldp_params;
99 /* The reserved field should follow in case the struct above will increase*/
100 uint32_t _reserved[20];
101 uint32_t admin_status;
102 #define LLDP_TX_ONLY 0x01
103 #define LLDP_RX_ONLY 0x02
104 #define LLDP_TX_RX 0x03
105 #define LLDP_DISABLED 0x04
106 uint32_t remote_chassis_id[REM_CHASSIS_ID_STAT_LEN];
107 uint32_t remote_port_id[REM_PORT_ID_STAT_LEN];
108 uint32_t local_chassis_id[LOCAL_CHASSIS_ID_STAT_LEN];
109 uint32_t local_port_id[LOCAL_PORT_ID_STAT_LEN];
110 };
111
112 struct bxe_admin_priority_app_table {
113 uint32_t valid;
114 uint32_t priority;
115 #define INVALID_TRAFFIC_TYPE_PRIORITY (0xFFFFFFFF)
116 uint32_t traffic_type;
117 #define TRAFFIC_TYPE_ETH 0
118 #define TRAFFIC_TYPE_PORT 1
119 uint32_t app_id;
120 };
121
122 #define DCBX_CONFIG_MAX_APP_PROTOCOL 4
123 struct bxe_config_dcbx_params {
124 uint32_t overwrite_settings;
125 uint32_t admin_dcbx_version;
126 uint32_t admin_ets_enable;
127 uint32_t admin_pfc_enable;
128 uint32_t admin_tc_supported_tx_enable;
129 uint32_t admin_ets_configuration_tx_enable;
130 uint32_t admin_ets_recommendation_tx_enable;
131 uint32_t admin_pfc_tx_enable;
132 uint32_t admin_application_priority_tx_enable;
133 uint32_t admin_ets_willing;
134 uint32_t admin_ets_reco_valid;
135 uint32_t admin_pfc_willing;
136 uint32_t admin_app_priority_willing;
137 uint32_t admin_configuration_bw_precentage[8];
138 uint32_t admin_configuration_ets_pg[8];
139 uint32_t admin_recommendation_bw_precentage[8];
140 uint32_t admin_recommendation_ets_pg[8];
141 uint32_t admin_pfc_bitmap;
142 struct bxe_admin_priority_app_table
143 admin_priority_app_table[DCBX_CONFIG_MAX_APP_PROTOCOL];
144 uint32_t admin_default_priority;
145 };
146
147 //#define DCBX_PARAMS_VER_NUM 3 /* XXX conflict with common_uif.h */
148 struct bxe_dcbx_params_get {
149 uint32_t ver_num;
150 uint32_t dcb_state;
151 uint32_t dcbx_enabled;
152 struct bxe_config_dcbx_params config_dcbx_params;
153 /* The reserved field should follow in case the struct above will increase*/
154 uint32_t _reserved[19];
155
156 uint32_t dcb_current_state;
157 #define BXE_DCBX_CURRENT_STATE_IS_SYNC (1 << 0)
158 #define BXE_PFC_IS_CURRENTLY_OPERATIONAL (1 << 1)
159 #define BXE_ETS_IS_CURRENTLY_OPERATIONAL (1 << 2)
160 #define BXE_PRIORITY_TAGGING_IS_CURRENTLY_OPERATIONAL (1 << 3)
161
162 uint32_t local_tc_supported;
163 uint32_t local_pfc_caps;
164 uint32_t remote_tc_supported;
165 uint32_t remote_pfc_cap;
166 uint32_t remote_ets_willing;
167 uint32_t remote_ets_reco_valid;
168 uint32_t remote_pfc_willing;
169 uint32_t remote_app_priority_willing;
170 uint32_t remote_configuration_bw_precentage[8];
171 uint32_t remote_configuration_ets_pg[8];
172 uint32_t remote_recommendation_bw_precentage[8];
173 uint32_t remote_recommendation_ets_pg[8];
174 uint32_t remote_pfc_bitmap;
175 struct bxe_admin_priority_app_table
176 remote_priority_app_table[DCBX_MAX_APP_PROTOCOL];
177 uint32_t local_ets_enable;
178 uint32_t local_pfc_enable;
179 uint32_t local_configuration_bw_precentage[8];
180 uint32_t local_configuration_ets_pg[8];
181 uint32_t local_pfc_bitmap;
182 struct bxe_admin_priority_app_table
183 local_priority_app_table[DCBX_MAX_APP_PROTOCOL];
184 uint32_t pfc_mismatch;
185 uint32_t priority_app_mismatch;
186 uint32_t dcbx_frames_sent;
187 uint32_t dcbx_frames_received;
188 uint32_t pfc_frames_sent[2];
189 uint32_t pfc_frames_received[2];
190 };
191
192 struct bxe_dcbx_params_set {
193 uint32_t ver_num;
194 uint32_t dcb_state;
195 uint32_t dcbx_enabled;
196 struct bxe_config_dcbx_params config_dcbx_params;
197 };
198
199 #define GET_FLAGS(flags, bits) ((flags) & (bits))
200 #define SET_FLAGS(flags, bits) ((flags) |= (bits))
201 #define RESET_FLAGS(flags, bits) ((flags) &= ~(bits))
202
203 enum {
204 DCBX_READ_LOCAL_MIB,
205 DCBX_READ_REMOTE_MIB
206 };
207
208 #define ETH_TYPE_FCOE (0x8906)
209 #define TCP_PORT_ISCSI (0xCBC)
210
211 #define PFC_VALUE_FRAME_SIZE (512)
212 #define PFC_QUANTA_IN_NANOSEC_FROM_SPEED_MEGA(mega_speed) \
213 ((1000 * PFC_VALUE_FRAME_SIZE)/(mega_speed))
214
215 #define PFC_BRB1_REG_HIGH_LLFC_LOW_THRESHOLD 130
216 #define PFC_BRB1_REG_HIGH_LLFC_HIGH_THRESHOLD 170
217
218 struct cos_entry_help_data {
219 uint32_t pri_join_mask;
220 uint32_t cos_bw;
221 uint8_t strict;
222 uint8_t pausable;
223 };
224
225 struct cos_help_data {
226 struct cos_entry_help_data data[DCBX_COS_MAX_NUM];
227 uint8_t num_of_cos;
228 };
229
230 #define DCBX_ILLEGAL_PG (0xFF)
231 #define DCBX_PFC_PRI_MASK (0xFF)
232 #define DCBX_STRICT_PRIORITY (15)
233 #define DCBX_INVALID_COS_BW (0xFFFFFFFF)
234 #define DCBX_PFC_PRI_NON_PAUSE_MASK(sc) \
235 ((sc)->dcbx_port_params.pfc.priority_non_pauseable_mask)
236 #define DCBX_PFC_PRI_PAUSE_MASK(sc) \
237 ((uint8_t)~DCBX_PFC_PRI_NON_PAUSE_MASK(sc))
238 #define DCBX_PFC_PRI_GET_PAUSE(sc, pg_pri) \
239 ((pg_pri) & (DCBX_PFC_PRI_PAUSE_MASK(sc)))
240 #define DCBX_PFC_PRI_GET_NON_PAUSE(sc, pg_pri) \
241 (DCBX_PFC_PRI_NON_PAUSE_MASK(sc) & (pg_pri))
242 #define DCBX_IS_PFC_PRI_SOME_PAUSE(sc, pg_pri) \
243 (0 != DCBX_PFC_PRI_GET_PAUSE(sc, pg_pri))
244 #define IS_DCBX_PFC_PRI_ONLY_PAUSE(sc, pg_pri) \
245 (pg_pri == DCBX_PFC_PRI_GET_PAUSE((sc), (pg_pri)))
246 #define IS_DCBX_PFC_PRI_ONLY_NON_PAUSE(sc, pg_pri) \
247 ((pg_pri) == DCBX_PFC_PRI_GET_NON_PAUSE((sc), (pg_pri)))
248 #define IS_DCBX_PFC_PRI_MIX_PAUSE(sc, pg_pri) \
249 (!(IS_DCBX_PFC_PRI_ONLY_NON_PAUSE((sc), (pg_pri)) || \
250 IS_DCBX_PFC_PRI_ONLY_PAUSE((sc), (pg_pri))))
251
252 struct pg_entry_help_data {
253 uint8_t num_of_dif_pri;
254 uint8_t pg;
255 uint32_t pg_priority;
256 };
257
258 struct pg_help_data {
259 struct pg_entry_help_data data[LLFC_DRIVER_TRAFFIC_TYPE_MAX];
260 uint8_t num_of_pg;
261 };
262
263 /* forward DCB/PFC related declarations */
264 struct bxe_softc;
265 /* void bxe_dcbx_update(struct work_struct *work); */
266 void bxe_dcbx_init_params(struct bxe_softc *sc);
267 void bxe_dcbx_set_state(struct bxe_softc *sc, uint8_t dcb_on, uint32_t dcbx_enabled);
268 int bxe_dcb_get_lldp_params_ioctl(struct bxe_softc *sc, void *uaddr);
269 int bxe_dcb_get_dcbx_params_ioctl(struct bxe_softc *sc, void *uaddr);
270 int bxe_dcb_set_dcbx_params_ioctl(struct bxe_softc *sc, void *uaddr);
271
272 enum {
273 BXE_DCBX_STATE_NEG_RECEIVED = 0x1,
274 BXE_DCBX_STATE_TX_PAUSED,
275 BXE_DCBX_STATE_TX_RELEASED
276 };
277
278 void bxe_dcbx_set_params(struct bxe_softc *sc, uint32_t state);
279 void bxe_dcbx_pmf_update(struct bxe_softc *sc);
280
281 #endif /* BXE_DCB_H */
282
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