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1 | /**************************************************************************** |
2 | * Driver for Solarflare Solarstorm network controllers and boards | |
3 | * Copyright 2008-2009 Solarflare Communications Inc. | |
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 | /** | |
14 | * enum efx_mcdi_state | |
15 | * @MCDI_STATE_QUIESCENT: No pending MCDI requests. If the caller holds the | |
16 | * mcdi_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. | |
22 | */ | |
23 | enum efx_mcdi_state { | |
24 | MCDI_STATE_QUIESCENT, | |
25 | MCDI_STATE_RUNNING, | |
26 | MCDI_STATE_COMPLETED, | |
27 | }; | |
28 | ||
29 | enum efx_mcdi_mode { | |
30 | MCDI_MODE_POLL, | |
31 | MCDI_MODE_EVENTS, | |
32 | }; | |
33 | ||
34 | /** | |
35 | * struct efx_mcdi_iface | |
36 | * @state: Interface state. Waited for by mcdi_wq. | |
37 | * @wq: Wait queue for threads waiting for state != STATE_RUNNING | |
38 | * @iface_lock: Protects @credits, @seqno, @resprc, @resplen | |
39 | * @mode: Poll for mcdi completion, or wait for an mcdi_event. | |
40 | * Serialised by @lock | |
41 | * @seqno: The next sequence number to use for mcdi requests. | |
42 | * Serialised by @lock | |
43 | * @credits: Number of spurious MCDI completion events allowed before we | |
44 | * trigger a fatal error. Protected by @lock | |
45 | * @resprc: Returned MCDI completion | |
46 | * @resplen: Returned payload length | |
47 | */ | |
48 | struct efx_mcdi_iface { | |
49 | atomic_t state; | |
50 | wait_queue_head_t wq; | |
51 | spinlock_t iface_lock; | |
52 | enum efx_mcdi_mode mode; | |
53 | unsigned int credits; | |
54 | unsigned int seqno; | |
55 | unsigned int resprc; | |
56 | size_t resplen; | |
57 | }; | |
58 | ||
59 | extern void efx_mcdi_init(struct efx_nic *efx); | |
60 | ||
61 | extern int efx_mcdi_rpc(struct efx_nic *efx, unsigned cmd, const u8 *inbuf, | |
62 | size_t inlen, u8 *outbuf, size_t outlen, | |
63 | size_t *outlen_actual); | |
64 | ||
65 | extern int efx_mcdi_poll_reboot(struct efx_nic *efx); | |
66 | extern void efx_mcdi_mode_poll(struct efx_nic *efx); | |
67 | extern void efx_mcdi_mode_event(struct efx_nic *efx); | |
68 | ||
69 | extern void efx_mcdi_process_event(struct efx_channel *channel, | |
70 | efx_qword_t *event); | |
71 | ||
72 | #define MCDI_PTR2(_buf, _ofst) \ | |
73 | (((u8 *)_buf) + _ofst) | |
74 | #define MCDI_SET_DWORD2(_buf, _ofst, _value) \ | |
75 | EFX_POPULATE_DWORD_1(*((efx_dword_t *)MCDI_PTR2(_buf, _ofst)), \ | |
76 | EFX_DWORD_0, _value) | |
77 | #define MCDI_DWORD2(_buf, _ofst) \ | |
78 | EFX_DWORD_FIELD(*((efx_dword_t *)MCDI_PTR2(_buf, _ofst)), \ | |
79 | EFX_DWORD_0) | |
80 | #define MCDI_QWORD2(_buf, _ofst) \ | |
81 | EFX_QWORD_FIELD64(*((efx_qword_t *)MCDI_PTR2(_buf, _ofst)), \ | |
82 | EFX_QWORD_0) | |
83 | ||
84 | #define MCDI_PTR(_buf, _ofst) \ | |
85 | MCDI_PTR2(_buf, MC_CMD_ ## _ofst ## _OFST) | |
86 | #define MCDI_SET_DWORD(_buf, _ofst, _value) \ | |
87 | MCDI_SET_DWORD2(_buf, MC_CMD_ ## _ofst ## _OFST, _value) | |
88 | #define MCDI_DWORD(_buf, _ofst) \ | |
89 | MCDI_DWORD2(_buf, MC_CMD_ ## _ofst ## _OFST) | |
90 | #define MCDI_QWORD(_buf, _ofst) \ | |
91 | MCDI_QWORD2(_buf, MC_CMD_ ## _ofst ## _OFST) | |
92 | ||
93 | #define MCDI_EVENT_FIELD(_ev, _field) \ | |
94 | EFX_QWORD_FIELD(_ev, MCDI_EVENT_ ## _field) | |
95 | ||
96 | extern int efx_mcdi_fwver(struct efx_nic *efx, u64 *version, u32 *build); | |
97 | extern int efx_mcdi_drv_attach(struct efx_nic *efx, bool driver_operating, | |
98 | bool *was_attached_out); | |
99 | extern int efx_mcdi_get_board_cfg(struct efx_nic *efx, u8 *mac_address, | |
100 | u16 *fw_subtype_list); | |
101 | extern int efx_mcdi_log_ctrl(struct efx_nic *efx, bool evq, bool uart, | |
102 | u32 dest_evq); | |
103 | extern int efx_mcdi_nvram_types(struct efx_nic *efx, u32 *nvram_types_out); | |
104 | extern int efx_mcdi_nvram_info(struct efx_nic *efx, unsigned int type, | |
105 | size_t *size_out, size_t *erase_size_out, | |
106 | bool *protected_out); | |
107 | extern int efx_mcdi_nvram_update_start(struct efx_nic *efx, | |
108 | unsigned int type); | |
109 | extern int efx_mcdi_nvram_read(struct efx_nic *efx, unsigned int type, | |
110 | loff_t offset, u8 *buffer, size_t length); | |
111 | extern int efx_mcdi_nvram_write(struct efx_nic *efx, unsigned int type, | |
112 | loff_t offset, const u8 *buffer, | |
113 | size_t length); | |
5a27e86b | 114 | #define EFX_MCDI_NVRAM_LEN_MAX 128 |
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115 | extern int efx_mcdi_nvram_erase(struct efx_nic *efx, unsigned int type, |
116 | loff_t offset, size_t length); | |
117 | extern int efx_mcdi_nvram_update_finish(struct efx_nic *efx, | |
118 | unsigned int type); | |
2e803407 | 119 | extern int efx_mcdi_nvram_test_all(struct efx_nic *efx); |
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120 | extern int efx_mcdi_handle_assertion(struct efx_nic *efx); |
121 | extern void efx_mcdi_set_id_led(struct efx_nic *efx, enum efx_led_mode mode); | |
122 | extern int efx_mcdi_reset_port(struct efx_nic *efx); | |
123 | extern int efx_mcdi_reset_mc(struct efx_nic *efx); | |
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124 | extern int efx_mcdi_wol_filter_set_magic(struct efx_nic *efx, |
125 | const u8 *mac, int *id_out); | |
126 | extern int efx_mcdi_wol_filter_get_magic(struct efx_nic *efx, int *id_out); | |
127 | extern int efx_mcdi_wol_filter_remove(struct efx_nic *efx, int id); | |
128 | extern int efx_mcdi_wol_filter_reset(struct efx_nic *efx); | |
129 | ||
130 | #endif /* EFX_MCDI_H */ |