sfc: Add EF10 support for TX/RX DMA error events handling.
[deliverable/linux.git] / drivers / net / ethernet / sfc / mcdi.h
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1/****************************************************************************
2 * Driver for Solarflare Solarstorm network controllers and boards
0a6f40c6 3 * Copyright 2008-2010 Solarflare Communications Inc.
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4 *
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.
8 */
9
10#ifndef EFX_MCDI_H
11#define EFX_MCDI_H
12
13/**
f76fe120 14 * enum efx_mcdi_state - MCDI request handling state
afd4aea0 15 * @MCDI_STATE_QUIESCENT: No pending MCDI requests. If the caller holds the
f76fe120 16 * mcdi @iface_lock then they are able to move to %MCDI_STATE_RUNNING
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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
f76fe120 21 * %MCDI_STATE_RUNNING.
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22 */
23enum efx_mcdi_state {
24 MCDI_STATE_QUIESCENT,
25 MCDI_STATE_RUNNING,
26 MCDI_STATE_COMPLETED,
27};
28
29enum efx_mcdi_mode {
30 MCDI_MODE_POLL,
31 MCDI_MODE_EVENTS,
32};
33
34/**
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35 * struct efx_mcdi_iface - MCDI protocol context
36 * @state: Request handling state. Waited for by @wq.
afd4aea0 37 * @mode: Poll for mcdi completion, or wait for an mcdi_event.
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38 * @wq: Wait queue for threads waiting for @state != %MCDI_STATE_RUNNING
39 * @iface_lock: Serialises access to all the following fields
afd4aea0 40 * @seqno: The next sequence number to use for mcdi requests.
afd4aea0 41 * @credits: Number of spurious MCDI completion events allowed before we
f76fe120 42 * trigger a fatal error
5bc283e5 43 * @resprc: Response error/success code (Linux numbering)
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44 * @resp_hdr_len: Response header length
45 * @resp_data_len: Response data (SDU or error) length
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46 */
47struct efx_mcdi_iface {
48 atomic_t state;
f76fe120 49 enum efx_mcdi_mode mode;
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50 wait_queue_head_t wq;
51 spinlock_t iface_lock;
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52 unsigned int credits;
53 unsigned int seqno;
5bc283e5 54 int resprc;
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55 size_t resp_hdr_len;
56 size_t resp_data_len;
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57};
58
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59struct efx_mcdi_mon {
60 struct efx_buffer dma_buf;
61 struct mutex update_lock;
62 unsigned long last_update;
63 struct device *device;
64 struct efx_mcdi_mon_attribute *attrs;
65 unsigned int n_attrs;
66};
67
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68struct efx_mcdi_mtd_partition {
69 struct efx_mtd_partition common;
70 bool updating;
71 u8 nvram_type;
72 u16 fw_subtype;
73};
74
75#define to_efx_mcdi_mtd_partition(mtd) \
76 container_of(mtd, struct efx_mcdi_mtd_partition, common.mtd)
77
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78/**
79 * struct efx_mcdi_data - extra state for NICs that implement MCDI
80 * @iface: Interface/protocol state
81 * @hwmon: Hardware monitor state
82 */
83struct efx_mcdi_data {
84 struct efx_mcdi_iface iface;
85#ifdef CONFIG_SFC_MCDI_MON
86 struct efx_mcdi_mon hwmon;
87#endif
88};
89
90#ifdef CONFIG_SFC_MCDI_MON
91static inline struct efx_mcdi_mon *efx_mcdi_mon(struct efx_nic *efx)
92{
93 EFX_BUG_ON_PARANOID(!efx->mcdi);
94 return &efx->mcdi->hwmon;
95}
96#endif
97
f073dde0 98extern int efx_mcdi_init(struct efx_nic *efx);
f3ad5003 99extern void efx_mcdi_fini(struct efx_nic *efx);
afd4aea0 100
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101extern int efx_mcdi_rpc(struct efx_nic *efx, unsigned cmd,
102 const efx_dword_t *inbuf, size_t inlen,
103 efx_dword_t *outbuf, size_t outlen,
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104 size_t *outlen_actual);
105
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106extern int efx_mcdi_rpc_start(struct efx_nic *efx, unsigned cmd,
107 const efx_dword_t *inbuf, size_t inlen);
c3cba721 108extern int efx_mcdi_rpc_finish(struct efx_nic *efx, unsigned cmd, size_t inlen,
9528b921 109 efx_dword_t *outbuf, size_t outlen,
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110 size_t *outlen_actual);
111
9528b921 112
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113extern int efx_mcdi_poll_reboot(struct efx_nic *efx);
114extern void efx_mcdi_mode_poll(struct efx_nic *efx);
115extern void efx_mcdi_mode_event(struct efx_nic *efx);
116
117extern void efx_mcdi_process_event(struct efx_channel *channel,
118 efx_qword_t *event);
55c5e0f8 119extern void efx_mcdi_sensor_event(struct efx_nic *efx, efx_qword_t *ev);
afd4aea0 120
9528b921 121/* We expect that 16- and 32-bit fields in MCDI requests and responses
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122 * are appropriately aligned, but 64-bit fields are only
123 * 32-bit-aligned. Also, on Siena we must copy to the MC shared
124 * memory strictly 32 bits at a time, so add any necessary padding.
9528b921 125 */
59cfc479 126#define MCDI_DECLARE_BUF(_name, _len) \
9528b921 127 efx_dword_t _name[DIV_ROUND_UP(_len, 4)]
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128#define _MCDI_PTR(_buf, _offset) \
129 ((u8 *)(_buf) + (_offset))
30af6910 130#define MCDI_PTR(_buf, _field) \
a649dfcb 131 _MCDI_PTR(_buf, MC_CMD_ ## _field ## _OFST)
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132#define _MCDI_CHECK_ALIGN(_ofst, _align) \
133 ((_ofst) + BUILD_BUG_ON_ZERO((_ofst) & (_align - 1)))
30af6910 134#define _MCDI_DWORD(_buf, _field) \
9528b921 135 ((_buf) + (_MCDI_CHECK_ALIGN(MC_CMD_ ## _field ## _OFST, 4) >> 2))
59cfc479 136
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137#define MCDI_SET_DWORD(_buf, _field, _value) \
138 EFX_POPULATE_DWORD_1(*_MCDI_DWORD(_buf, _field), EFX_DWORD_0, _value)
139#define MCDI_DWORD(_buf, _field) \
140 EFX_DWORD_FIELD(*_MCDI_DWORD(_buf, _field), EFX_DWORD_0)
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141#define MCDI_POPULATE_DWORD_1(_buf, _field, _name1, _value1) \
142 EFX_POPULATE_DWORD_1(*_MCDI_DWORD(_buf, _field), \
143 MC_CMD_ ## _name1, _value1)
144#define MCDI_POPULATE_DWORD_2(_buf, _field, _name1, _value1, \
145 _name2, _value2) \
146 EFX_POPULATE_DWORD_2(*_MCDI_DWORD(_buf, _field), \
147 MC_CMD_ ## _name1, _value1, \
148 MC_CMD_ ## _name2, _value2)
149#define MCDI_POPULATE_DWORD_3(_buf, _field, _name1, _value1, \
150 _name2, _value2, _name3, _value3) \
151 EFX_POPULATE_DWORD_3(*_MCDI_DWORD(_buf, _field), \
152 MC_CMD_ ## _name1, _value1, \
153 MC_CMD_ ## _name2, _value2, \
154 MC_CMD_ ## _name3, _value3)
155#define MCDI_POPULATE_DWORD_4(_buf, _field, _name1, _value1, \
156 _name2, _value2, _name3, _value3, \
157 _name4, _value4) \
158 EFX_POPULATE_DWORD_4(*_MCDI_DWORD(_buf, _field), \
159 MC_CMD_ ## _name1, _value1, \
160 MC_CMD_ ## _name2, _value2, \
161 MC_CMD_ ## _name3, _value3, \
162 MC_CMD_ ## _name4, _value4)
163#define MCDI_POPULATE_DWORD_5(_buf, _field, _name1, _value1, \
164 _name2, _value2, _name3, _value3, \
165 _name4, _value4, _name5, _value5) \
166 EFX_POPULATE_DWORD_5(*_MCDI_DWORD(_buf, _field), \
167 MC_CMD_ ## _name1, _value1, \
168 MC_CMD_ ## _name2, _value2, \
169 MC_CMD_ ## _name3, _value3, \
170 MC_CMD_ ## _name4, _value4, \
171 MC_CMD_ ## _name5, _value5)
172#define MCDI_POPULATE_DWORD_6(_buf, _field, _name1, _value1, \
173 _name2, _value2, _name3, _value3, \
174 _name4, _value4, _name5, _value5, \
175 _name6, _value6) \
176 EFX_POPULATE_DWORD_6(*_MCDI_DWORD(_buf, _field), \
177 MC_CMD_ ## _name1, _value1, \
178 MC_CMD_ ## _name2, _value2, \
179 MC_CMD_ ## _name3, _value3, \
180 MC_CMD_ ## _name4, _value4, \
181 MC_CMD_ ## _name5, _value5, \
182 MC_CMD_ ## _name6, _value6)
183#define MCDI_POPULATE_DWORD_7(_buf, _field, _name1, _value1, \
184 _name2, _value2, _name3, _value3, \
185 _name4, _value4, _name5, _value5, \
186 _name6, _value6, _name7, _value7) \
187 EFX_POPULATE_DWORD_7(*_MCDI_DWORD(_buf, _field), \
188 MC_CMD_ ## _name1, _value1, \
189 MC_CMD_ ## _name2, _value2, \
190 MC_CMD_ ## _name3, _value3, \
191 MC_CMD_ ## _name4, _value4, \
192 MC_CMD_ ## _name5, _value5, \
193 MC_CMD_ ## _name6, _value6, \
194 MC_CMD_ ## _name7, _value7)
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195#define MCDI_SET_QWORD(_buf, _field, _value) \
196 do { \
197 EFX_POPULATE_DWORD_1(_MCDI_DWORD(_buf, _field)[0], \
198 EFX_DWORD_0, (u32)(_value)); \
199 EFX_POPULATE_DWORD_1(_MCDI_DWORD(_buf, _field)[1], \
200 EFX_DWORD_0, (u64)(_value) >> 32); \
201 } while (0)
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202#define MCDI_QWORD(_buf, _field) \
203 (EFX_DWORD_FIELD(_MCDI_DWORD(_buf, _field)[0], EFX_DWORD_0) | \
204 (u64)EFX_DWORD_FIELD(_MCDI_DWORD(_buf, _field)[1], EFX_DWORD_0) << 32)
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205#define MCDI_FIELD(_ptr, _type, _field) \
206 EFX_EXTRACT_DWORD( \
207 *(efx_dword_t *) \
208 _MCDI_PTR(_ptr, MC_CMD_ ## _type ## _ ## _field ## _OFST & ~3),\
209 MC_CMD_ ## _type ## _ ## _field ## _LBN & 0x1f, \
210 (MC_CMD_ ## _type ## _ ## _field ## _LBN & 0x1f) + \
211 MC_CMD_ ## _type ## _ ## _field ## _WIDTH - 1)
30af6910 212
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213#define _MCDI_ARRAY_PTR(_buf, _field, _index, _align) \
214 (_MCDI_PTR(_buf, _MCDI_CHECK_ALIGN(MC_CMD_ ## _field ## _OFST, _align))\
215 + (_index) * _MCDI_CHECK_ALIGN(MC_CMD_ ## _field ## _LEN, _align))
a649dfcb 216#define MCDI_DECLARE_STRUCT_PTR(_name) \
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217 efx_dword_t *_name
218#define MCDI_ARRAY_STRUCT_PTR(_buf, _field, _index) \
219 ((efx_dword_t *)_MCDI_ARRAY_PTR(_buf, _field, _index, 4))
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220#define MCDI_VAR_ARRAY_LEN(_len, _field) \
221 min_t(size_t, MC_CMD_ ## _field ## _MAXNUM, \
222 ((_len) - MC_CMD_ ## _field ## _OFST) / MC_CMD_ ## _field ## _LEN)
223#define MCDI_ARRAY_WORD(_buf, _field, _index) \
224 (BUILD_BUG_ON_ZERO(MC_CMD_ ## _field ## _LEN != 2) + \
225 le16_to_cpu(*(__force const __le16 *) \
9528b921 226 _MCDI_ARRAY_PTR(_buf, _field, _index, 2)))
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227#define _MCDI_ARRAY_DWORD(_buf, _field, _index) \
228 (BUILD_BUG_ON_ZERO(MC_CMD_ ## _field ## _LEN != 4) + \
9528b921 229 (efx_dword_t *)_MCDI_ARRAY_PTR(_buf, _field, _index, 4))
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230#define MCDI_SET_ARRAY_DWORD(_buf, _field, _index, _value) \
231 EFX_SET_DWORD_FIELD(*_MCDI_ARRAY_DWORD(_buf, _field, _index), \
232 EFX_DWORD_0, _value)
233#define MCDI_ARRAY_DWORD(_buf, _field, _index) \
234 EFX_DWORD_FIELD(*_MCDI_ARRAY_DWORD(_buf, _field, _index), EFX_DWORD_0)
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235#define _MCDI_ARRAY_QWORD(_buf, _field, _index) \
236 (BUILD_BUG_ON_ZERO(MC_CMD_ ## _field ## _LEN != 8) + \
237 (efx_dword_t *)_MCDI_ARRAY_PTR(_buf, _field, _index, 4))
238#define MCDI_SET_ARRAY_QWORD(_buf, _field, _index, _value) \
239 do { \
240 EFX_SET_DWORD_FIELD(_MCDI_ARRAY_QWORD(_buf, _field, _index)[0],\
241 EFX_DWORD_0, (u32)(_value)); \
242 EFX_SET_DWORD_FIELD(_MCDI_ARRAY_QWORD(_buf, _field, _index)[1],\
243 EFX_DWORD_0, (u64)(_value) >> 32); \
244 } while (0)
55c5e0f8 245#define MCDI_ARRAY_FIELD(_buf, _field1, _type, _index, _field2) \
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246 MCDI_FIELD(MCDI_ARRAY_STRUCT_PTR(_buf, _field1, _index), \
247 _type ## _TYPEDEF, _field2)
afd4aea0 248
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249#define MCDI_EVENT_FIELD(_ev, _field) \
250 EFX_QWORD_FIELD(_ev, MCDI_EVENT_ ## _field)
251
e5f0fd27 252extern void efx_mcdi_print_fwver(struct efx_nic *efx, char *buf, size_t len);
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253extern int efx_mcdi_drv_attach(struct efx_nic *efx, bool driver_operating,
254 bool *was_attached_out);
255extern int efx_mcdi_get_board_cfg(struct efx_nic *efx, u8 *mac_address,
6aa9c7f6 256 u16 *fw_subtype_list, u32 *capabilities);
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257extern int efx_mcdi_log_ctrl(struct efx_nic *efx, bool evq, bool uart,
258 u32 dest_evq);
259extern int efx_mcdi_nvram_types(struct efx_nic *efx, u32 *nvram_types_out);
260extern int efx_mcdi_nvram_info(struct efx_nic *efx, unsigned int type,
261 size_t *size_out, size_t *erase_size_out,
262 bool *protected_out);
2e803407 263extern int efx_mcdi_nvram_test_all(struct efx_nic *efx);
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264extern int efx_mcdi_handle_assertion(struct efx_nic *efx);
265extern void efx_mcdi_set_id_led(struct efx_nic *efx, enum efx_led_mode mode);
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266extern int efx_mcdi_wol_filter_set_magic(struct efx_nic *efx,
267 const u8 *mac, int *id_out);
268extern int efx_mcdi_wol_filter_get_magic(struct efx_nic *efx, int *id_out);
269extern int efx_mcdi_wol_filter_remove(struct efx_nic *efx, int id);
270extern int efx_mcdi_wol_filter_reset(struct efx_nic *efx);
cd2d5b52 271extern int efx_mcdi_flush_rxqs(struct efx_nic *efx);
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272extern int efx_mcdi_port_probe(struct efx_nic *efx);
273extern void efx_mcdi_port_remove(struct efx_nic *efx);
274extern int efx_mcdi_port_reconfigure(struct efx_nic *efx);
275extern void efx_mcdi_process_link_change(struct efx_nic *efx, efx_qword_t *ev);
cd2d5b52 276extern int efx_mcdi_set_mac(struct efx_nic *efx);
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277#define EFX_MC_STATS_GENERATION_INVALID ((__force __le64)(-1))
278extern void efx_mcdi_mac_start_stats(struct efx_nic *efx);
279extern void efx_mcdi_mac_stop_stats(struct efx_nic *efx);
710b208d 280extern bool efx_mcdi_mac_check_fault(struct efx_nic *efx);
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281extern enum reset_type efx_mcdi_map_reset_reason(enum reset_type reason);
282extern int efx_mcdi_reset(struct efx_nic *efx, enum reset_type method);
afd4aea0 283
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284#ifdef CONFIG_SFC_MCDI_MON
285extern int efx_mcdi_mon_probe(struct efx_nic *efx);
286extern void efx_mcdi_mon_remove(struct efx_nic *efx);
287#else
288static inline int efx_mcdi_mon_probe(struct efx_nic *efx) { return 0; }
289static inline void efx_mcdi_mon_remove(struct efx_nic *efx) {}
290#endif
291
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292#ifdef CONFIG_SFC_MTD
293extern int efx_mcdi_mtd_read(struct mtd_info *mtd, loff_t start,
294 size_t len, size_t *retlen, u8 *buffer);
295extern int efx_mcdi_mtd_erase(struct mtd_info *mtd, loff_t start, size_t len);
296extern int efx_mcdi_mtd_write(struct mtd_info *mtd, loff_t start,
297 size_t len, size_t *retlen, const u8 *buffer);
298extern int efx_mcdi_mtd_sync(struct mtd_info *mtd);
299extern void efx_mcdi_mtd_rename(struct efx_mtd_partition *part);
300#endif
301
afd4aea0 302#endif /* EFX_MCDI_H */
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