1 /****************************************************************************
2 * Driver for Solarflare Solarstorm network controllers and boards
3 * Copyright 2008-2010 Solarflare Communications Inc.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 as published
7 * by the Free Software Foundation, incorporated herein by reference.
14 * enum efx_mcdi_state - MCDI request handling state
15 * @MCDI_STATE_QUIESCENT: No pending MCDI requests. If the caller holds the
16 * mcdi @iface_lock then they are able to move to %MCDI_STATE_RUNNING
17 * @MCDI_STATE_RUNNING: There is an MCDI request pending. Only the thread that
18 * moved into this state is allowed to move out of it.
19 * @MCDI_STATE_COMPLETED: An MCDI request has completed, but the owning thread
20 * has not yet consumed the result. For all other threads, equivalent to
21 * %MCDI_STATE_RUNNING.
35 * struct efx_mcdi_iface - MCDI protocol context
36 * @state: Request handling state. Waited for by @wq.
37 * @mode: Poll for mcdi completion, or wait for an mcdi_event.
38 * @wq: Wait queue for threads waiting for @state != %MCDI_STATE_RUNNING
39 * @new_epoch: Indicates start of day or start of MC reboot recovery
40 * @iface_lock: Serialises access to all the following fields
41 * @seqno: The next sequence number to use for mcdi requests.
42 * @credits: Number of spurious MCDI completion events allowed before we
43 * trigger a fatal error
44 * @resprc: Response error/success code (Linux numbering)
45 * @resp_hdr_len: Response header length
46 * @resp_data_len: Response data (SDU or error) length
48 struct efx_mcdi_iface {
49 enum efx_mcdi_state state;
50 enum efx_mcdi_mode mode;
52 spinlock_t iface_lock;
62 struct efx_buffer dma_buf;
63 struct mutex update_lock;
64 unsigned long last_update;
65 struct device *device;
66 struct efx_mcdi_mon_attribute *attrs;
70 struct efx_mcdi_mtd_partition {
71 struct efx_mtd_partition common;
77 #define to_efx_mcdi_mtd_partition(mtd) \
78 container_of(mtd, struct efx_mcdi_mtd_partition, common.mtd)
81 * struct efx_mcdi_data - extra state for NICs that implement MCDI
82 * @iface: Interface/protocol state
83 * @hwmon: Hardware monitor state
85 struct efx_mcdi_data {
86 struct efx_mcdi_iface iface;
87 #ifdef CONFIG_SFC_MCDI_MON
88 struct efx_mcdi_mon hwmon;
92 #ifdef CONFIG_SFC_MCDI_MON
93 static inline struct efx_mcdi_mon *efx_mcdi_mon(struct efx_nic *efx)
95 EFX_BUG_ON_PARANOID(!efx->mcdi);
96 return &efx->mcdi->hwmon;
100 extern int efx_mcdi_init(struct efx_nic *efx);
101 extern void efx_mcdi_fini(struct efx_nic *efx);
103 extern int efx_mcdi_rpc(struct efx_nic *efx, unsigned cmd,
104 const efx_dword_t *inbuf, size_t inlen,
105 efx_dword_t *outbuf, size_t outlen,
106 size_t *outlen_actual);
108 extern int efx_mcdi_rpc_start(struct efx_nic *efx, unsigned cmd,
109 const efx_dword_t *inbuf, size_t inlen);
110 extern int efx_mcdi_rpc_finish(struct efx_nic *efx, unsigned cmd, size_t inlen,
111 efx_dword_t *outbuf, size_t outlen,
112 size_t *outlen_actual);
115 extern int efx_mcdi_poll_reboot(struct efx_nic *efx);
116 extern void efx_mcdi_mode_poll(struct efx_nic *efx);
117 extern void efx_mcdi_mode_event(struct efx_nic *efx);
119 extern void efx_mcdi_process_event(struct efx_channel *channel,
121 extern void efx_mcdi_sensor_event(struct efx_nic *efx, efx_qword_t *ev);
123 /* We expect that 16- and 32-bit fields in MCDI requests and responses
124 * are appropriately aligned, but 64-bit fields are only
125 * 32-bit-aligned. Also, on Siena we must copy to the MC shared
126 * memory strictly 32 bits at a time, so add any necessary padding.
128 #define MCDI_DECLARE_BUF(_name, _len) \
129 efx_dword_t _name[DIV_ROUND_UP(_len, 4)]
130 #define _MCDI_PTR(_buf, _offset) \
131 ((u8 *)(_buf) + (_offset))
132 #define MCDI_PTR(_buf, _field) \
133 _MCDI_PTR(_buf, MC_CMD_ ## _field ## _OFST)
134 #define _MCDI_CHECK_ALIGN(_ofst, _align) \
135 ((_ofst) + BUILD_BUG_ON_ZERO((_ofst) & (_align - 1)))
136 #define _MCDI_DWORD(_buf, _field) \
137 ((_buf) + (_MCDI_CHECK_ALIGN(MC_CMD_ ## _field ## _OFST, 4) >> 2))
139 #define MCDI_SET_DWORD(_buf, _field, _value) \
140 EFX_POPULATE_DWORD_1(*_MCDI_DWORD(_buf, _field), EFX_DWORD_0, _value)
141 #define MCDI_DWORD(_buf, _field) \
142 EFX_DWORD_FIELD(*_MCDI_DWORD(_buf, _field), EFX_DWORD_0)
143 #define MCDI_POPULATE_DWORD_1(_buf, _field, _name1, _value1) \
144 EFX_POPULATE_DWORD_1(*_MCDI_DWORD(_buf, _field), \
145 MC_CMD_ ## _name1, _value1)
146 #define MCDI_POPULATE_DWORD_2(_buf, _field, _name1, _value1, \
148 EFX_POPULATE_DWORD_2(*_MCDI_DWORD(_buf, _field), \
149 MC_CMD_ ## _name1, _value1, \
150 MC_CMD_ ## _name2, _value2)
151 #define MCDI_POPULATE_DWORD_3(_buf, _field, _name1, _value1, \
152 _name2, _value2, _name3, _value3) \
153 EFX_POPULATE_DWORD_3(*_MCDI_DWORD(_buf, _field), \
154 MC_CMD_ ## _name1, _value1, \
155 MC_CMD_ ## _name2, _value2, \
156 MC_CMD_ ## _name3, _value3)
157 #define MCDI_POPULATE_DWORD_4(_buf, _field, _name1, _value1, \
158 _name2, _value2, _name3, _value3, \
160 EFX_POPULATE_DWORD_4(*_MCDI_DWORD(_buf, _field), \
161 MC_CMD_ ## _name1, _value1, \
162 MC_CMD_ ## _name2, _value2, \
163 MC_CMD_ ## _name3, _value3, \
164 MC_CMD_ ## _name4, _value4)
165 #define MCDI_POPULATE_DWORD_5(_buf, _field, _name1, _value1, \
166 _name2, _value2, _name3, _value3, \
167 _name4, _value4, _name5, _value5) \
168 EFX_POPULATE_DWORD_5(*_MCDI_DWORD(_buf, _field), \
169 MC_CMD_ ## _name1, _value1, \
170 MC_CMD_ ## _name2, _value2, \
171 MC_CMD_ ## _name3, _value3, \
172 MC_CMD_ ## _name4, _value4, \
173 MC_CMD_ ## _name5, _value5)
174 #define MCDI_POPULATE_DWORD_6(_buf, _field, _name1, _value1, \
175 _name2, _value2, _name3, _value3, \
176 _name4, _value4, _name5, _value5, \
178 EFX_POPULATE_DWORD_6(*_MCDI_DWORD(_buf, _field), \
179 MC_CMD_ ## _name1, _value1, \
180 MC_CMD_ ## _name2, _value2, \
181 MC_CMD_ ## _name3, _value3, \
182 MC_CMD_ ## _name4, _value4, \
183 MC_CMD_ ## _name5, _value5, \
184 MC_CMD_ ## _name6, _value6)
185 #define MCDI_POPULATE_DWORD_7(_buf, _field, _name1, _value1, \
186 _name2, _value2, _name3, _value3, \
187 _name4, _value4, _name5, _value5, \
188 _name6, _value6, _name7, _value7) \
189 EFX_POPULATE_DWORD_7(*_MCDI_DWORD(_buf, _field), \
190 MC_CMD_ ## _name1, _value1, \
191 MC_CMD_ ## _name2, _value2, \
192 MC_CMD_ ## _name3, _value3, \
193 MC_CMD_ ## _name4, _value4, \
194 MC_CMD_ ## _name5, _value5, \
195 MC_CMD_ ## _name6, _value6, \
196 MC_CMD_ ## _name7, _value7)
197 #define MCDI_SET_QWORD(_buf, _field, _value) \
199 EFX_POPULATE_DWORD_1(_MCDI_DWORD(_buf, _field)[0], \
200 EFX_DWORD_0, (u32)(_value)); \
201 EFX_POPULATE_DWORD_1(_MCDI_DWORD(_buf, _field)[1], \
202 EFX_DWORD_0, (u64)(_value) >> 32); \
204 #define MCDI_QWORD(_buf, _field) \
205 (EFX_DWORD_FIELD(_MCDI_DWORD(_buf, _field)[0], EFX_DWORD_0) | \
206 (u64)EFX_DWORD_FIELD(_MCDI_DWORD(_buf, _field)[1], EFX_DWORD_0) << 32)
207 #define MCDI_FIELD(_ptr, _type, _field) \
210 _MCDI_PTR(_ptr, MC_CMD_ ## _type ## _ ## _field ## _OFST & ~3),\
211 MC_CMD_ ## _type ## _ ## _field ## _LBN & 0x1f, \
212 (MC_CMD_ ## _type ## _ ## _field ## _LBN & 0x1f) + \
213 MC_CMD_ ## _type ## _ ## _field ## _WIDTH - 1)
215 #define _MCDI_ARRAY_PTR(_buf, _field, _index, _align) \
216 (_MCDI_PTR(_buf, _MCDI_CHECK_ALIGN(MC_CMD_ ## _field ## _OFST, _align))\
217 + (_index) * _MCDI_CHECK_ALIGN(MC_CMD_ ## _field ## _LEN, _align))
218 #define MCDI_DECLARE_STRUCT_PTR(_name) \
220 #define MCDI_ARRAY_STRUCT_PTR(_buf, _field, _index) \
221 ((efx_dword_t *)_MCDI_ARRAY_PTR(_buf, _field, _index, 4))
222 #define MCDI_VAR_ARRAY_LEN(_len, _field) \
223 min_t(size_t, MC_CMD_ ## _field ## _MAXNUM, \
224 ((_len) - MC_CMD_ ## _field ## _OFST) / MC_CMD_ ## _field ## _LEN)
225 #define MCDI_ARRAY_WORD(_buf, _field, _index) \
226 (BUILD_BUG_ON_ZERO(MC_CMD_ ## _field ## _LEN != 2) + \
227 le16_to_cpu(*(__force const __le16 *) \
228 _MCDI_ARRAY_PTR(_buf, _field, _index, 2)))
229 #define _MCDI_ARRAY_DWORD(_buf, _field, _index) \
230 (BUILD_BUG_ON_ZERO(MC_CMD_ ## _field ## _LEN != 4) + \
231 (efx_dword_t *)_MCDI_ARRAY_PTR(_buf, _field, _index, 4))
232 #define MCDI_SET_ARRAY_DWORD(_buf, _field, _index, _value) \
233 EFX_SET_DWORD_FIELD(*_MCDI_ARRAY_DWORD(_buf, _field, _index), \
235 #define MCDI_ARRAY_DWORD(_buf, _field, _index) \
236 EFX_DWORD_FIELD(*_MCDI_ARRAY_DWORD(_buf, _field, _index), EFX_DWORD_0)
237 #define _MCDI_ARRAY_QWORD(_buf, _field, _index) \
238 (BUILD_BUG_ON_ZERO(MC_CMD_ ## _field ## _LEN != 8) + \
239 (efx_dword_t *)_MCDI_ARRAY_PTR(_buf, _field, _index, 4))
240 #define MCDI_SET_ARRAY_QWORD(_buf, _field, _index, _value) \
242 EFX_SET_DWORD_FIELD(_MCDI_ARRAY_QWORD(_buf, _field, _index)[0],\
243 EFX_DWORD_0, (u32)(_value)); \
244 EFX_SET_DWORD_FIELD(_MCDI_ARRAY_QWORD(_buf, _field, _index)[1],\
245 EFX_DWORD_0, (u64)(_value) >> 32); \
247 #define MCDI_ARRAY_FIELD(_buf, _field1, _type, _index, _field2) \
248 MCDI_FIELD(MCDI_ARRAY_STRUCT_PTR(_buf, _field1, _index), \
249 _type ## _TYPEDEF, _field2)
251 #define MCDI_EVENT_FIELD(_ev, _field) \
252 EFX_QWORD_FIELD(_ev, MCDI_EVENT_ ## _field)
254 extern void efx_mcdi_print_fwver(struct efx_nic *efx, char *buf, size_t len);
255 extern int efx_mcdi_drv_attach(struct efx_nic *efx, bool driver_operating,
256 bool *was_attached_out);
257 extern int efx_mcdi_get_board_cfg(struct efx_nic *efx, u8 *mac_address,
258 u16 *fw_subtype_list, u32 *capabilities);
259 extern int efx_mcdi_log_ctrl(struct efx_nic *efx, bool evq, bool uart,
261 extern int efx_mcdi_nvram_types(struct efx_nic *efx, u32 *nvram_types_out);
262 extern int efx_mcdi_nvram_info(struct efx_nic *efx, unsigned int type,
263 size_t *size_out, size_t *erase_size_out,
264 bool *protected_out);
265 extern int efx_mcdi_nvram_test_all(struct efx_nic *efx);
266 extern int efx_mcdi_handle_assertion(struct efx_nic *efx);
267 extern void efx_mcdi_set_id_led(struct efx_nic *efx, enum efx_led_mode mode);
268 extern int efx_mcdi_wol_filter_set_magic(struct efx_nic *efx,
269 const u8 *mac, int *id_out);
270 extern int efx_mcdi_wol_filter_get_magic(struct efx_nic *efx, int *id_out);
271 extern int efx_mcdi_wol_filter_remove(struct efx_nic *efx, int id);
272 extern int efx_mcdi_wol_filter_reset(struct efx_nic *efx);
273 extern int efx_mcdi_flush_rxqs(struct efx_nic *efx);
274 extern int efx_mcdi_port_probe(struct efx_nic *efx);
275 extern void efx_mcdi_port_remove(struct efx_nic *efx);
276 extern int efx_mcdi_port_reconfigure(struct efx_nic *efx);
277 extern void efx_mcdi_process_link_change(struct efx_nic *efx, efx_qword_t *ev);
278 extern int efx_mcdi_set_mac(struct efx_nic *efx);
279 #define EFX_MC_STATS_GENERATION_INVALID ((__force __le64)(-1))
280 extern void efx_mcdi_mac_start_stats(struct efx_nic *efx);
281 extern void efx_mcdi_mac_stop_stats(struct efx_nic *efx);
282 extern bool efx_mcdi_mac_check_fault(struct efx_nic *efx);
283 extern enum reset_type efx_mcdi_map_reset_reason(enum reset_type reason);
284 extern int efx_mcdi_reset(struct efx_nic *efx, enum reset_type method);
286 #ifdef CONFIG_SFC_MCDI_MON
287 extern int efx_mcdi_mon_probe(struct efx_nic *efx);
288 extern void efx_mcdi_mon_remove(struct efx_nic *efx);
290 static inline int efx_mcdi_mon_probe(struct efx_nic *efx) { return 0; }
291 static inline void efx_mcdi_mon_remove(struct efx_nic *efx) {}
294 #ifdef CONFIG_SFC_MTD
295 extern int efx_mcdi_mtd_read(struct mtd_info *mtd, loff_t start,
296 size_t len, size_t *retlen, u8 *buffer);
297 extern int efx_mcdi_mtd_erase(struct mtd_info *mtd, loff_t start, size_t len);
298 extern int efx_mcdi_mtd_write(struct mtd_info *mtd, loff_t start,
299 size_t len, size_t *retlen, const u8 *buffer);
300 extern int efx_mcdi_mtd_sync(struct mtd_info *mtd);
301 extern void efx_mcdi_mtd_rename(struct efx_mtd_partition *part);
304 #endif /* EFX_MCDI_H */