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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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131 lines
4.9 KiB
C
131 lines
4.9 KiB
C
/****************************************************************************
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* Driver for Solarflare Solarstorm network controllers and boards
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* Copyright 2008-2010 Solarflare Communications Inc.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation, incorporated herein by reference.
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*/
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#ifndef EFX_MCDI_H
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#define EFX_MCDI_H
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/**
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* enum efx_mcdi_state
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* @MCDI_STATE_QUIESCENT: No pending MCDI requests. If the caller holds the
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* mcdi_lock then they are able to move to MCDI_STATE_RUNNING
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* @MCDI_STATE_RUNNING: There is an MCDI request pending. Only the thread that
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* moved into this state is allowed to move out of it.
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* @MCDI_STATE_COMPLETED: An MCDI request has completed, but the owning thread
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* has not yet consumed the result. For all other threads, equivalent to
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* MCDI_STATE_RUNNING.
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*/
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enum efx_mcdi_state {
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MCDI_STATE_QUIESCENT,
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MCDI_STATE_RUNNING,
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MCDI_STATE_COMPLETED,
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};
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enum efx_mcdi_mode {
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MCDI_MODE_POLL,
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MCDI_MODE_EVENTS,
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};
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/**
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* struct efx_mcdi_iface
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* @state: Interface state. Waited for by mcdi_wq.
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* @wq: Wait queue for threads waiting for state != STATE_RUNNING
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* @iface_lock: Protects @credits, @seqno, @resprc, @resplen
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* @mode: Poll for mcdi completion, or wait for an mcdi_event.
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* Serialised by @lock
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* @seqno: The next sequence number to use for mcdi requests.
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* Serialised by @lock
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* @credits: Number of spurious MCDI completion events allowed before we
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* trigger a fatal error. Protected by @lock
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* @resprc: Returned MCDI completion
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* @resplen: Returned payload length
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*/
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struct efx_mcdi_iface {
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atomic_t state;
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wait_queue_head_t wq;
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spinlock_t iface_lock;
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enum efx_mcdi_mode mode;
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unsigned int credits;
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unsigned int seqno;
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unsigned int resprc;
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size_t resplen;
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};
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extern void efx_mcdi_init(struct efx_nic *efx);
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extern int efx_mcdi_rpc(struct efx_nic *efx, unsigned cmd, const u8 *inbuf,
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size_t inlen, u8 *outbuf, size_t outlen,
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size_t *outlen_actual);
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extern int efx_mcdi_poll_reboot(struct efx_nic *efx);
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extern void efx_mcdi_mode_poll(struct efx_nic *efx);
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extern void efx_mcdi_mode_event(struct efx_nic *efx);
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extern void efx_mcdi_process_event(struct efx_channel *channel,
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efx_qword_t *event);
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#define MCDI_PTR2(_buf, _ofst) \
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(((u8 *)_buf) + _ofst)
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#define MCDI_SET_DWORD2(_buf, _ofst, _value) \
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EFX_POPULATE_DWORD_1(*((efx_dword_t *)MCDI_PTR2(_buf, _ofst)), \
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EFX_DWORD_0, _value)
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#define MCDI_DWORD2(_buf, _ofst) \
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EFX_DWORD_FIELD(*((efx_dword_t *)MCDI_PTR2(_buf, _ofst)), \
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EFX_DWORD_0)
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#define MCDI_QWORD2(_buf, _ofst) \
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EFX_QWORD_FIELD64(*((efx_qword_t *)MCDI_PTR2(_buf, _ofst)), \
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EFX_QWORD_0)
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#define MCDI_PTR(_buf, _ofst) \
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MCDI_PTR2(_buf, MC_CMD_ ## _ofst ## _OFST)
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#define MCDI_SET_DWORD(_buf, _ofst, _value) \
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MCDI_SET_DWORD2(_buf, MC_CMD_ ## _ofst ## _OFST, _value)
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#define MCDI_DWORD(_buf, _ofst) \
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MCDI_DWORD2(_buf, MC_CMD_ ## _ofst ## _OFST)
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#define MCDI_QWORD(_buf, _ofst) \
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MCDI_QWORD2(_buf, MC_CMD_ ## _ofst ## _OFST)
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#define MCDI_EVENT_FIELD(_ev, _field) \
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EFX_QWORD_FIELD(_ev, MCDI_EVENT_ ## _field)
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extern void efx_mcdi_print_fwver(struct efx_nic *efx, char *buf, size_t len);
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extern int efx_mcdi_drv_attach(struct efx_nic *efx, bool driver_operating,
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bool *was_attached_out);
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extern int efx_mcdi_get_board_cfg(struct efx_nic *efx, u8 *mac_address,
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u16 *fw_subtype_list);
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extern int efx_mcdi_log_ctrl(struct efx_nic *efx, bool evq, bool uart,
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u32 dest_evq);
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extern int efx_mcdi_nvram_types(struct efx_nic *efx, u32 *nvram_types_out);
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extern int efx_mcdi_nvram_info(struct efx_nic *efx, unsigned int type,
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size_t *size_out, size_t *erase_size_out,
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bool *protected_out);
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extern int efx_mcdi_nvram_update_start(struct efx_nic *efx,
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unsigned int type);
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extern int efx_mcdi_nvram_read(struct efx_nic *efx, unsigned int type,
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loff_t offset, u8 *buffer, size_t length);
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extern int efx_mcdi_nvram_write(struct efx_nic *efx, unsigned int type,
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loff_t offset, const u8 *buffer,
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size_t length);
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#define EFX_MCDI_NVRAM_LEN_MAX 128
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extern int efx_mcdi_nvram_erase(struct efx_nic *efx, unsigned int type,
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loff_t offset, size_t length);
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extern int efx_mcdi_nvram_update_finish(struct efx_nic *efx,
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unsigned int type);
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extern int efx_mcdi_nvram_test_all(struct efx_nic *efx);
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extern int efx_mcdi_handle_assertion(struct efx_nic *efx);
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extern void efx_mcdi_set_id_led(struct efx_nic *efx, enum efx_led_mode mode);
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extern int efx_mcdi_reset_port(struct efx_nic *efx);
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extern int efx_mcdi_reset_mc(struct efx_nic *efx);
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extern int efx_mcdi_wol_filter_set_magic(struct efx_nic *efx,
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const u8 *mac, int *id_out);
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extern int efx_mcdi_wol_filter_get_magic(struct efx_nic *efx, int *id_out);
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extern int efx_mcdi_wol_filter_remove(struct efx_nic *efx, int id);
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extern int efx_mcdi_wol_filter_reset(struct efx_nic *efx);
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#endif /* EFX_MCDI_H */
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