1 /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
2 /* Copyright (C) 2015-2018 Netronome Systems, Inc. */
3
4 #ifndef NSP_NSP_H
5 #define NSP_NSP_H 1
6
7 #include <linux/types.h>
8 #include <linux/if_ether.h>
9
10 struct firmware;
11 struct nfp_cpp;
12 struct nfp_nsp;
13
14 struct nfp_nsp *nfp_nsp_open(struct nfp_cpp *cpp);
15 void nfp_nsp_close(struct nfp_nsp *state);
16 u16 nfp_nsp_get_abi_ver_major(struct nfp_nsp *state);
17 u16 nfp_nsp_get_abi_ver_minor(struct nfp_nsp *state);
18 int nfp_nsp_wait(struct nfp_nsp *state);
19 int nfp_nsp_device_soft_reset(struct nfp_nsp *state);
20 int nfp_nsp_load_fw(struct nfp_nsp *state, const struct firmware *fw);
21 int nfp_nsp_write_flash(struct nfp_nsp *state, const struct firmware *fw);
22 int nfp_nsp_mac_reinit(struct nfp_nsp *state);
23 int nfp_nsp_load_stored_fw(struct nfp_nsp *state);
24 int nfp_nsp_hwinfo_lookup(struct nfp_nsp *state, void *buf, unsigned int size);
25 int nfp_nsp_hwinfo_lookup_optional(struct nfp_nsp *state, void *buf,
26 unsigned int size, const char *default_val);
27 int nfp_nsp_hwinfo_set(struct nfp_nsp *state, void *buf, unsigned int size);
28 int nfp_nsp_fw_loaded(struct nfp_nsp *state);
29 int nfp_nsp_read_module_eeprom(struct nfp_nsp *state, int eth_index,
30 unsigned int offset, void *data,
31 unsigned int len, unsigned int *read_len);
32
nfp_nsp_has_mac_reinit(struct nfp_nsp * state)33 static inline bool nfp_nsp_has_mac_reinit(struct nfp_nsp *state)
34 {
35 return nfp_nsp_get_abi_ver_minor(state) > 20;
36 }
37
nfp_nsp_has_stored_fw_load(struct nfp_nsp * state)38 static inline bool nfp_nsp_has_stored_fw_load(struct nfp_nsp *state)
39 {
40 return nfp_nsp_get_abi_ver_minor(state) > 23;
41 }
42
nfp_nsp_has_hwinfo_lookup(struct nfp_nsp * state)43 static inline bool nfp_nsp_has_hwinfo_lookup(struct nfp_nsp *state)
44 {
45 return nfp_nsp_get_abi_ver_minor(state) > 24;
46 }
47
nfp_nsp_has_hwinfo_set(struct nfp_nsp * state)48 static inline bool nfp_nsp_has_hwinfo_set(struct nfp_nsp *state)
49 {
50 return nfp_nsp_get_abi_ver_minor(state) > 25;
51 }
52
nfp_nsp_has_fw_loaded(struct nfp_nsp * state)53 static inline bool nfp_nsp_has_fw_loaded(struct nfp_nsp *state)
54 {
55 return nfp_nsp_get_abi_ver_minor(state) > 25;
56 }
57
nfp_nsp_has_versions(struct nfp_nsp * state)58 static inline bool nfp_nsp_has_versions(struct nfp_nsp *state)
59 {
60 return nfp_nsp_get_abi_ver_minor(state) > 27;
61 }
62
nfp_nsp_has_read_module_eeprom(struct nfp_nsp * state)63 static inline bool nfp_nsp_has_read_module_eeprom(struct nfp_nsp *state)
64 {
65 return nfp_nsp_get_abi_ver_minor(state) > 28;
66 }
67
68 enum nfp_eth_interface {
69 NFP_INTERFACE_NONE = 0,
70 NFP_INTERFACE_SFP = 1,
71 NFP_INTERFACE_SFPP = 10,
72 NFP_INTERFACE_SFP28 = 28,
73 NFP_INTERFACE_QSFP = 40,
74 NFP_INTERFACE_RJ45 = 45,
75 NFP_INTERFACE_CXP = 100,
76 NFP_INTERFACE_QSFP28 = 112,
77 };
78
79 enum nfp_eth_media {
80 NFP_MEDIA_DAC_PASSIVE = 0,
81 NFP_MEDIA_DAC_ACTIVE,
82 NFP_MEDIA_FIBRE,
83 };
84
85 enum nfp_eth_aneg {
86 NFP_ANEG_AUTO = 0,
87 NFP_ANEG_SEARCH,
88 NFP_ANEG_25G_CONSORTIUM,
89 NFP_ANEG_25G_IEEE,
90 NFP_ANEG_DISABLED,
91 };
92
93 enum nfp_eth_fec {
94 NFP_FEC_AUTO_BIT = 0,
95 NFP_FEC_BASER_BIT,
96 NFP_FEC_REED_SOLOMON_BIT,
97 NFP_FEC_DISABLED_BIT,
98 };
99
100 #define NFP_FEC_AUTO BIT(NFP_FEC_AUTO_BIT)
101 #define NFP_FEC_BASER BIT(NFP_FEC_BASER_BIT)
102 #define NFP_FEC_REED_SOLOMON BIT(NFP_FEC_REED_SOLOMON_BIT)
103 #define NFP_FEC_DISABLED BIT(NFP_FEC_DISABLED_BIT)
104
105 /* Defines the valid values of the 'abi_drv_reset' hwinfo key */
106 #define NFP_NSP_DRV_RESET_DISK 0
107 #define NFP_NSP_DRV_RESET_ALWAYS 1
108 #define NFP_NSP_DRV_RESET_NEVER 2
109 #define NFP_NSP_DRV_RESET_DEFAULT "0"
110
111 /* Defines the valid values of the 'app_fw_from_flash' hwinfo key */
112 #define NFP_NSP_APP_FW_LOAD_DISK 0
113 #define NFP_NSP_APP_FW_LOAD_FLASH 1
114 #define NFP_NSP_APP_FW_LOAD_PREF 2
115 #define NFP_NSP_APP_FW_LOAD_DEFAULT "2"
116
117 /* Define the default value for the 'abi_drv_load_ifc' key */
118 #define NFP_NSP_DRV_LOAD_IFC_DEFAULT "0x10ff"
119
120 /**
121 * struct nfp_eth_table - ETH table information
122 * @count: number of table entries
123 * @max_index: max of @index fields of all @ports
124 * @ports: table of ports
125 *
126 * @ports.eth_index: port index according to legacy ethX numbering
127 * @ports.index: chip-wide first channel index
128 * @ports.nbi: NBI index
129 * @ports.base: first channel index (within NBI)
130 * @ports.lanes: number of channels
131 * @ports.speed: interface speed (in Mbps)
132 * @ports.interface: interface (module) plugged in
133 * @ports.media: media type of the @interface
134 * @ports.fec: forward error correction mode
135 * @ports.aneg: auto negotiation mode
136 * @ports.mac_addr: interface MAC address
137 * @ports.label_port: port id
138 * @ports.label_subport: id of interface within port (for split ports)
139 * @ports.enabled: is enabled?
140 * @ports.tx_enabled: is TX enabled?
141 * @ports.rx_enabled: is RX enabled?
142 * @ports.override_changed: is media reconfig pending?
143 *
144 * @ports.port_type: one of %PORT_* defines for ethtool
145 * @ports.port_lanes: total number of lanes on the port (sum of lanes of all
146 * subports)
147 * @ports.is_split: is interface part of a split port
148 * @ports.fec_modes_supported: bitmap of FEC modes supported
149 */
150 struct nfp_eth_table {
151 unsigned int count;
152 unsigned int max_index;
153 struct nfp_eth_table_port {
154 unsigned int eth_index;
155 unsigned int index;
156 unsigned int nbi;
157 unsigned int base;
158 unsigned int lanes;
159 unsigned int speed;
160
161 unsigned int interface;
162 enum nfp_eth_media media;
163
164 enum nfp_eth_fec fec;
165 enum nfp_eth_aneg aneg;
166
167 u8 mac_addr[ETH_ALEN];
168
169 u8 label_port;
170 u8 label_subport;
171
172 bool enabled;
173 bool tx_enabled;
174 bool rx_enabled;
175
176 bool override_changed;
177
178 /* Computed fields */
179 u8 port_type;
180
181 unsigned int port_lanes;
182
183 bool is_split;
184
185 unsigned int fec_modes_supported;
186 } ports[0];
187 };
188
189 struct nfp_eth_table *nfp_eth_read_ports(struct nfp_cpp *cpp);
190 struct nfp_eth_table *
191 __nfp_eth_read_ports(struct nfp_cpp *cpp, struct nfp_nsp *nsp);
192
193 int nfp_eth_set_mod_enable(struct nfp_cpp *cpp, unsigned int idx, bool enable);
194 int nfp_eth_set_configured(struct nfp_cpp *cpp, unsigned int idx,
195 bool configed);
196 int
197 nfp_eth_set_fec(struct nfp_cpp *cpp, unsigned int idx, enum nfp_eth_fec mode);
198
nfp_eth_can_support_fec(struct nfp_eth_table_port * eth_port)199 static inline bool nfp_eth_can_support_fec(struct nfp_eth_table_port *eth_port)
200 {
201 return !!eth_port->fec_modes_supported;
202 }
203
204 static inline unsigned int
nfp_eth_supported_fec_modes(struct nfp_eth_table_port * eth_port)205 nfp_eth_supported_fec_modes(struct nfp_eth_table_port *eth_port)
206 {
207 return eth_port->fec_modes_supported;
208 }
209
210 struct nfp_nsp *nfp_eth_config_start(struct nfp_cpp *cpp, unsigned int idx);
211 int nfp_eth_config_commit_end(struct nfp_nsp *nsp);
212 void nfp_eth_config_cleanup_end(struct nfp_nsp *nsp);
213
214 int __nfp_eth_set_aneg(struct nfp_nsp *nsp, enum nfp_eth_aneg mode);
215 int __nfp_eth_set_speed(struct nfp_nsp *nsp, unsigned int speed);
216 int __nfp_eth_set_split(struct nfp_nsp *nsp, unsigned int lanes);
217
218 /**
219 * struct nfp_nsp_identify - NSP static information
220 * @version: opaque version string
221 * @flags: version flags
222 * @br_primary: branch id of primary bootloader
223 * @br_secondary: branch id of secondary bootloader
224 * @br_nsp: branch id of NSP
225 * @primary: version of primarary bootloader
226 * @secondary: version id of secondary bootloader
227 * @nsp: version id of NSP
228 * @sensor_mask: mask of present sensors available on NIC
229 */
230 struct nfp_nsp_identify {
231 char version[40];
232 u8 flags;
233 u8 br_primary;
234 u8 br_secondary;
235 u8 br_nsp;
236 u16 primary;
237 u16 secondary;
238 u16 nsp;
239 u64 sensor_mask;
240 };
241
242 struct nfp_nsp_identify *__nfp_nsp_identify(struct nfp_nsp *nsp);
243
244 enum nfp_nsp_sensor_id {
245 NFP_SENSOR_CHIP_TEMPERATURE,
246 NFP_SENSOR_ASSEMBLY_POWER,
247 NFP_SENSOR_ASSEMBLY_12V_POWER,
248 NFP_SENSOR_ASSEMBLY_3V3_POWER,
249 };
250
251 int nfp_hwmon_read_sensor(struct nfp_cpp *cpp, enum nfp_nsp_sensor_id id,
252 long *val);
253
254 #define NFP_NSP_VERSION_BUFSZ 1024 /* reasonable size, not in the ABI */
255
256 enum nfp_nsp_versions {
257 NFP_VERSIONS_BSP,
258 NFP_VERSIONS_CPLD,
259 NFP_VERSIONS_APP,
260 NFP_VERSIONS_BUNDLE,
261 NFP_VERSIONS_UNDI,
262 NFP_VERSIONS_NCSI,
263 NFP_VERSIONS_CFGR,
264 };
265
266 int nfp_nsp_versions(struct nfp_nsp *state, void *buf, unsigned int size);
267 const char *nfp_nsp_versions_get(enum nfp_nsp_versions id, bool flash,
268 const u8 *buf, unsigned int size);
269 #endif
270
