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/****************************************************************************
* Driver for Solarflare Solarstorm network controllers and boards
* Copyright 2008-2010 Solarflare Communications Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation, incorporated herein by reference.
*/
#ifndef EFX_MCDI_H
#define EFX_MCDI_H
/**
* enum efx_mcdi_state
* @MCDI_STATE_QUIESCENT: No pending MCDI requests. If the caller holds the
* mcdi_lock then they are able to move to MCDI_STATE_RUNNING
* @MCDI_STATE_RUNNING: There is an MCDI request pending. Only the thread that
* moved into this state is allowed to move out of it.
* @MCDI_STATE_COMPLETED: An MCDI request has completed, but the owning thread
* has not yet consumed the result. For all other threads, equivalent to
* MCDI_STATE_RUNNING.
*/
enum efx_mcdi_state {
MCDI_STATE_QUIESCENT,
MCDI_STATE_RUNNING,
MCDI_STATE_COMPLETED,
};
enum efx_mcdi_mode {
MCDI_MODE_POLL,
MCDI_MODE_EVENTS,
};
/**
* struct efx_mcdi_iface
* @state: Interface state. Waited for by mcdi_wq.
* @wq: Wait queue for threads waiting for state != STATE_RUNNING
* @iface_lock: Protects @credits, @seqno, @resprc, @resplen
* @mode: Poll for mcdi completion, or wait for an mcdi_event.
* Serialised by @lock
* @seqno: The next sequence number to use for mcdi requests.
* Serialised by @lock
* @credits: Number of spurious MCDI completion events allowed before we
* trigger a fatal error. Protected by @lock
* @resprc: Returned MCDI completion
* @resplen: Returned payload length
*/
struct efx_mcdi_iface {
atomic_t state;
wait_queue_head_t wq;
spinlock_t iface_lock;
enum efx_mcdi_mode mode;
unsigned int credits;
unsigned int seqno;
unsigned int resprc;
size_t resplen;
};
extern void efx_mcdi_init(struct efx_nic *efx);
extern int efx_mcdi_rpc(struct efx_nic *efx, unsigned cmd, const u8 *inbuf,
size_t inlen, u8 *outbuf, size_t outlen,
size_t *outlen_actual);
extern int efx_mcdi_poll_reboot(struct efx_nic *efx);
extern void efx_mcdi_mode_poll(struct efx_nic *efx);
extern void efx_mcdi_mode_event(struct efx_nic *efx);
extern void efx_mcdi_process_event(struct efx_channel *channel,
efx_qword_t *event);
#define MCDI_PTR2(_buf, _ofst) \
(((u8 *)_buf) + _ofst)
#define MCDI_SET_DWORD2(_buf, _ofst, _value) \
EFX_POPULATE_DWORD_1(*((efx_dword_t *)MCDI_PTR2(_buf, _ofst)), \
EFX_DWORD_0, _value)
#define MCDI_DWORD2(_buf, _ofst) \
EFX_DWORD_FIELD(*((efx_dword_t *)MCDI_PTR2(_buf, _ofst)), \
EFX_DWORD_0)
#define MCDI_QWORD2(_buf, _ofst) \
EFX_QWORD_FIELD64(*((efx_qword_t *)MCDI_PTR2(_buf, _ofst)), \
EFX_QWORD_0)
#define MCDI_PTR(_buf, _ofst) \
MCDI_PTR2(_buf, MC_CMD_ ## _ofst ## _OFST)
#define MCDI_SET_DWORD(_buf, _ofst, _value) \
MCDI_SET_DWORD2(_buf, MC_CMD_ ## _ofst ## _OFST, _value)
#define MCDI_DWORD(_buf, _ofst) \
MCDI_DWORD2(_buf, MC_CMD_ ## _ofst ## _OFST)
#define MCDI_QWORD(_buf, _ofst) \
MCDI_QWORD2(_buf, MC_CMD_ ## _ofst ## _OFST)
#define MCDI_EVENT_FIELD(_ev, _field) \
EFX_QWORD_FIELD(_ev, MCDI_EVENT_ ## _field)
extern void efx_mcdi_print_fwver(struct efx_nic *efx, char *buf, size_t len);
extern int efx_mcdi_drv_attach(struct efx_nic *efx, bool driver_operating,
bool *was_attached_out);
extern int efx_mcdi_get_board_cfg(struct efx_nic *efx, u8 *mac_address,
u16 *fw_subtype_list);
extern int efx_mcdi_log_ctrl(struct efx_nic *efx, bool evq, bool uart,
u32 dest_evq);
extern int efx_mcdi_nvram_types(struct efx_nic *efx, u32 *nvram_types_out);
extern int efx_mcdi_nvram_info(struct efx_nic *efx, unsigned int type,
size_t *size_out, size_t *erase_size_out,
bool *protected_out);
extern int efx_mcdi_nvram_update_start(struct efx_nic *efx,
unsigned int type);
extern int efx_mcdi_nvram_read(struct efx_nic *efx, unsigned int type,
loff_t offset, u8 *buffer, size_t length);
extern int efx_mcdi_nvram_write(struct efx_nic *efx, unsigned int type,
loff_t offset, const u8 *buffer,
size_t length);
#define EFX_MCDI_NVRAM_LEN_MAX 128
extern int efx_mcdi_nvram_erase(struct efx_nic *efx, unsigned int type,
loff_t offset, size_t length);
extern int efx_mcdi_nvram_update_finish(struct efx_nic *efx,
unsigned int type);
extern int efx_mcdi_nvram_test_all(struct efx_nic *efx);
extern int efx_mcdi_handle_assertion(struct efx_nic *efx);
extern void efx_mcdi_set_id_led(struct efx_nic *efx, enum efx_led_mode mode);
extern int efx_mcdi_reset_port(struct efx_nic *efx);
extern int efx_mcdi_reset_mc(struct efx_nic *efx);
extern int efx_mcdi_wol_filter_set_magic(struct efx_nic *efx,
const u8 *mac, int *id_out);
extern int efx_mcdi_wol_filter_get_magic(struct efx_nic *efx, int *id_out);
extern int efx_mcdi_wol_filter_remove(struct efx_nic *efx, int id);
extern int efx_mcdi_wol_filter_reset(struct efx_nic *efx);
#endif /* EFX_MCDI_H */
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