383 lines
15 KiB
C
383 lines
15 KiB
C
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/****************************************************************************
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* Driver for Solarflare network controllers and boards
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* Copyright 2008-2013 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 - MCDI request handling state
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* @MCDI_STATE_QUIESCENT: No pending MCDI requests. If the caller holds the
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* mcdi @iface_lock then they are able to move to %MCDI_STATE_RUNNING
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* @MCDI_STATE_RUNNING_SYNC: There is a synchronous MCDI request pending.
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* Only the thread that moved into this state is allowed to move out of it.
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* @MCDI_STATE_RUNNING_ASYNC: There is an asynchronous MCDI request pending.
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* @MCDI_STATE_PROXY_WAIT: An MCDI request has completed with a response that
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* indicates we must wait for a proxy try again message.
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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_SYNC,
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MCDI_STATE_RUNNING_ASYNC,
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MCDI_STATE_PROXY_WAIT,
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MCDI_STATE_COMPLETED,
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};
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/**
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* enum efx_mcdi_mode - MCDI transaction mode
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* @MCDI_MODE_POLL: poll for MCDI completion, until timeout
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* @MCDI_MODE_EVENTS: wait for an mcdi_event. On timeout, poll once
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* @MCDI_MODE_FAIL: we think MCDI is dead, so fail-fast all calls
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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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MCDI_MODE_FAIL,
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};
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/**
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* struct efx_mcdi_iface - MCDI protocol context
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* @efx: The associated NIC.
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* @state: Request handling state. Waited for by @wq.
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* @mode: Poll for mcdi completion, or wait for an mcdi_event.
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* @wq: Wait queue for threads waiting for @state != %MCDI_STATE_RUNNING
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* @new_epoch: Indicates start of day or start of MC reboot recovery
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* @iface_lock: Serialises access to @seqno, @credits and response metadata
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* @seqno: The next sequence number to use for mcdi requests.
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* @credits: Number of spurious MCDI completion events allowed before we
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* trigger a fatal error
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* @resprc: Response error/success code (Linux numbering)
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* @resp_hdr_len: Response header length
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* @resp_data_len: Response data (SDU or error) length
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* @async_lock: Serialises access to @async_list while event processing is
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* enabled
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* @async_list: Queue of asynchronous requests
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* @async_timer: Timer for asynchronous request timeout
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* @logging_buffer: buffer that may be used to build MCDI tracing messages
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* @logging_enabled: whether to trace MCDI
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* @proxy_rx_handle: Most recently received proxy authorisation handle
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* @proxy_rx_status: Status of most recent proxy authorisation
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* @proxy_rx_wq: Wait queue for updates to proxy_rx_handle
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*/
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struct efx_mcdi_iface {
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struct efx_nic *efx;
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enum efx_mcdi_state state;
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enum efx_mcdi_mode mode;
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wait_queue_head_t wq;
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spinlock_t iface_lock;
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bool new_epoch;
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unsigned int credits;
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unsigned int seqno;
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int resprc;
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int resprc_raw;
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size_t resp_hdr_len;
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size_t resp_data_len;
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spinlock_t async_lock;
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struct list_head async_list;
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struct timer_list async_timer;
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#ifdef CONFIG_SFC_MCDI_LOGGING
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char *logging_buffer;
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bool logging_enabled;
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#endif
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unsigned int proxy_rx_handle;
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int proxy_rx_status;
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wait_queue_head_t proxy_rx_wq;
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};
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struct efx_mcdi_mon {
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struct efx_buffer dma_buf;
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struct mutex update_lock;
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unsigned long last_update;
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struct device *device;
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struct efx_mcdi_mon_attribute *attrs;
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struct attribute_group group;
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const struct attribute_group *groups[2];
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unsigned int n_attrs;
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};
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struct efx_mcdi_mtd_partition {
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struct efx_mtd_partition common;
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bool updating;
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u16 nvram_type;
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u16 fw_subtype;
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};
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#define to_efx_mcdi_mtd_partition(mtd) \
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container_of(mtd, struct efx_mcdi_mtd_partition, common.mtd)
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/**
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* struct efx_mcdi_data - extra state for NICs that implement MCDI
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* @iface: Interface/protocol state
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* @hwmon: Hardware monitor state
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* @fn_flags: Flags for this function, as returned by %MC_CMD_DRV_ATTACH.
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*/
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struct efx_mcdi_data {
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struct efx_mcdi_iface iface;
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#ifdef CONFIG_SFC_MCDI_MON
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struct efx_mcdi_mon hwmon;
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#endif
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u32 fn_flags;
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};
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static inline struct efx_mcdi_iface *efx_mcdi(struct efx_nic *efx)
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{
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EFX_BUG_ON_PARANOID(!efx->mcdi);
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return &efx->mcdi->iface;
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}
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#ifdef CONFIG_SFC_MCDI_MON
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static inline struct efx_mcdi_mon *efx_mcdi_mon(struct efx_nic *efx)
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{
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EFX_BUG_ON_PARANOID(!efx->mcdi);
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return &efx->mcdi->hwmon;
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}
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#endif
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int efx_mcdi_init(struct efx_nic *efx);
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void efx_mcdi_fini(struct efx_nic *efx);
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int efx_mcdi_rpc(struct efx_nic *efx, unsigned cmd, const efx_dword_t *inbuf,
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size_t inlen, efx_dword_t *outbuf, size_t outlen,
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size_t *outlen_actual);
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int efx_mcdi_rpc_quiet(struct efx_nic *efx, unsigned cmd,
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const efx_dword_t *inbuf, size_t inlen,
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efx_dword_t *outbuf, size_t outlen,
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size_t *outlen_actual);
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int efx_mcdi_rpc_start(struct efx_nic *efx, unsigned cmd,
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const efx_dword_t *inbuf, size_t inlen);
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int efx_mcdi_rpc_finish(struct efx_nic *efx, unsigned cmd, size_t inlen,
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efx_dword_t *outbuf, size_t outlen,
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size_t *outlen_actual);
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int efx_mcdi_rpc_finish_quiet(struct efx_nic *efx, unsigned cmd,
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size_t inlen, efx_dword_t *outbuf,
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size_t outlen, size_t *outlen_actual);
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typedef void efx_mcdi_async_completer(struct efx_nic *efx,
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unsigned long cookie, int rc,
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efx_dword_t *outbuf,
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size_t outlen_actual);
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int efx_mcdi_rpc_async(struct efx_nic *efx, unsigned int cmd,
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const efx_dword_t *inbuf, size_t inlen, size_t outlen,
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efx_mcdi_async_completer *complete,
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unsigned long cookie);
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int efx_mcdi_rpc_async_quiet(struct efx_nic *efx, unsigned int cmd,
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const efx_dword_t *inbuf, size_t inlen,
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size_t outlen,
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efx_mcdi_async_completer *complete,
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unsigned long cookie);
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void efx_mcdi_display_error(struct efx_nic *efx, unsigned cmd,
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size_t inlen, efx_dword_t *outbuf,
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size_t outlen, int rc);
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int efx_mcdi_poll_reboot(struct efx_nic *efx);
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void efx_mcdi_mode_poll(struct efx_nic *efx);
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void efx_mcdi_mode_event(struct efx_nic *efx);
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void efx_mcdi_flush_async(struct efx_nic *efx);
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void efx_mcdi_process_event(struct efx_channel *channel, efx_qword_t *event);
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void efx_mcdi_sensor_event(struct efx_nic *efx, efx_qword_t *ev);
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/* We expect that 16- and 32-bit fields in MCDI requests and responses
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* are appropriately aligned, but 64-bit fields are only
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* 32-bit-aligned. Also, on Siena we must copy to the MC shared
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* memory strictly 32 bits at a time, so add any necessary padding.
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*/
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#define _MCDI_DECLARE_BUF(_name, _len) \
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efx_dword_t _name[DIV_ROUND_UP(_len, 4)]
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#define MCDI_DECLARE_BUF(_name, _len) \
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_MCDI_DECLARE_BUF(_name, _len) = {{{0}}}
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#define MCDI_DECLARE_BUF_ERR(_name) \
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MCDI_DECLARE_BUF(_name, 8)
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#define _MCDI_PTR(_buf, _offset) \
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((u8 *)(_buf) + (_offset))
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#define MCDI_PTR(_buf, _field) \
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_MCDI_PTR(_buf, MC_CMD_ ## _field ## _OFST)
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#define _MCDI_CHECK_ALIGN(_ofst, _align) \
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((_ofst) + BUILD_BUG_ON_ZERO((_ofst) & (_align - 1)))
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#define _MCDI_DWORD(_buf, _field) \
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((_buf) + (_MCDI_CHECK_ALIGN(MC_CMD_ ## _field ## _OFST, 4) >> 2))
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#define MCDI_WORD(_buf, _field) \
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((u16)BUILD_BUG_ON_ZERO(MC_CMD_ ## _field ## _LEN != 2) + \
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le16_to_cpu(*(__force const __le16 *)MCDI_PTR(_buf, _field)))
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#define MCDI_SET_DWORD(_buf, _field, _value) \
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EFX_POPULATE_DWORD_1(*_MCDI_DWORD(_buf, _field), EFX_DWORD_0, _value)
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#define MCDI_DWORD(_buf, _field) \
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EFX_DWORD_FIELD(*_MCDI_DWORD(_buf, _field), EFX_DWORD_0)
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#define MCDI_POPULATE_DWORD_1(_buf, _field, _name1, _value1) \
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EFX_POPULATE_DWORD_1(*_MCDI_DWORD(_buf, _field), \
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MC_CMD_ ## _name1, _value1)
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#define MCDI_POPULATE_DWORD_2(_buf, _field, _name1, _value1, \
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_name2, _value2) \
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EFX_POPULATE_DWORD_2(*_MCDI_DWORD(_buf, _field), \
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MC_CMD_ ## _name1, _value1, \
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MC_CMD_ ## _name2, _value2)
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#define MCDI_POPULATE_DWORD_3(_buf, _field, _name1, _value1, \
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_name2, _value2, _name3, _value3) \
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EFX_POPULATE_DWORD_3(*_MCDI_DWORD(_buf, _field), \
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MC_CMD_ ## _name1, _value1, \
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MC_CMD_ ## _name2, _value2, \
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MC_CMD_ ## _name3, _value3)
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#define MCDI_POPULATE_DWORD_4(_buf, _field, _name1, _value1, \
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_name2, _value2, _name3, _value3, \
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_name4, _value4) \
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EFX_POPULATE_DWORD_4(*_MCDI_DWORD(_buf, _field), \
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MC_CMD_ ## _name1, _value1, \
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MC_CMD_ ## _name2, _value2, \
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MC_CMD_ ## _name3, _value3, \
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MC_CMD_ ## _name4, _value4)
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#define MCDI_POPULATE_DWORD_5(_buf, _field, _name1, _value1, \
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_name2, _value2, _name3, _value3, \
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_name4, _value4, _name5, _value5) \
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EFX_POPULATE_DWORD_5(*_MCDI_DWORD(_buf, _field), \
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MC_CMD_ ## _name1, _value1, \
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MC_CMD_ ## _name2, _value2, \
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MC_CMD_ ## _name3, _value3, \
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MC_CMD_ ## _name4, _value4, \
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MC_CMD_ ## _name5, _value5)
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#define MCDI_POPULATE_DWORD_6(_buf, _field, _name1, _value1, \
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_name2, _value2, _name3, _value3, \
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_name4, _value4, _name5, _value5, \
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_name6, _value6) \
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EFX_POPULATE_DWORD_6(*_MCDI_DWORD(_buf, _field), \
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MC_CMD_ ## _name1, _value1, \
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MC_CMD_ ## _name2, _value2, \
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MC_CMD_ ## _name3, _value3, \
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MC_CMD_ ## _name4, _value4, \
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MC_CMD_ ## _name5, _value5, \
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MC_CMD_ ## _name6, _value6)
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#define MCDI_POPULATE_DWORD_7(_buf, _field, _name1, _value1, \
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_name2, _value2, _name3, _value3, \
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_name4, _value4, _name5, _value5, \
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_name6, _value6, _name7, _value7) \
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EFX_POPULATE_DWORD_7(*_MCDI_DWORD(_buf, _field), \
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MC_CMD_ ## _name1, _value1, \
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MC_CMD_ ## _name2, _value2, \
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MC_CMD_ ## _name3, _value3, \
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MC_CMD_ ## _name4, _value4, \
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MC_CMD_ ## _name5, _value5, \
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MC_CMD_ ## _name6, _value6, \
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MC_CMD_ ## _name7, _value7)
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#define MCDI_SET_QWORD(_buf, _field, _value) \
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do { \
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EFX_POPULATE_DWORD_1(_MCDI_DWORD(_buf, _field)[0], \
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EFX_DWORD_0, (u32)(_value)); \
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EFX_POPULATE_DWORD_1(_MCDI_DWORD(_buf, _field)[1], \
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EFX_DWORD_0, (u64)(_value) >> 32); \
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} while (0)
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#define MCDI_QWORD(_buf, _field) \
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(EFX_DWORD_FIELD(_MCDI_DWORD(_buf, _field)[0], EFX_DWORD_0) | \
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(u64)EFX_DWORD_FIELD(_MCDI_DWORD(_buf, _field)[1], EFX_DWORD_0) << 32)
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#define MCDI_FIELD(_ptr, _type, _field) \
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EFX_EXTRACT_DWORD( \
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*(efx_dword_t *) \
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_MCDI_PTR(_ptr, MC_CMD_ ## _type ## _ ## _field ## _OFST & ~3),\
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MC_CMD_ ## _type ## _ ## _field ## _LBN & 0x1f, \
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(MC_CMD_ ## _type ## _ ## _field ## _LBN & 0x1f) + \
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MC_CMD_ ## _type ## _ ## _field ## _WIDTH - 1)
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#define _MCDI_ARRAY_PTR(_buf, _field, _index, _align) \
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(_MCDI_PTR(_buf, _MCDI_CHECK_ALIGN(MC_CMD_ ## _field ## _OFST, _align))\
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+ (_index) * _MCDI_CHECK_ALIGN(MC_CMD_ ## _field ## _LEN, _align))
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#define MCDI_DECLARE_STRUCT_PTR(_name) \
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efx_dword_t *_name
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#define MCDI_ARRAY_STRUCT_PTR(_buf, _field, _index) \
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((efx_dword_t *)_MCDI_ARRAY_PTR(_buf, _field, _index, 4))
|
||
|
|
#define MCDI_VAR_ARRAY_LEN(_len, _field) \
|
||
|
|
min_t(size_t, MC_CMD_ ## _field ## _MAXNUM, \
|
||
|
|
((_len) - MC_CMD_ ## _field ## _OFST) / MC_CMD_ ## _field ## _LEN)
|
||
|
|
#define MCDI_ARRAY_WORD(_buf, _field, _index) \
|
||
|
|
(BUILD_BUG_ON_ZERO(MC_CMD_ ## _field ## _LEN != 2) + \
|
||
|
|
le16_to_cpu(*(__force const __le16 *) \
|
||
|
|
_MCDI_ARRAY_PTR(_buf, _field, _index, 2)))
|
||
|
|
#define _MCDI_ARRAY_DWORD(_buf, _field, _index) \
|
||
|
|
(BUILD_BUG_ON_ZERO(MC_CMD_ ## _field ## _LEN != 4) + \
|
||
|
|
(efx_dword_t *)_MCDI_ARRAY_PTR(_buf, _field, _index, 4))
|
||
|
|
#define MCDI_SET_ARRAY_DWORD(_buf, _field, _index, _value) \
|
||
|
|
EFX_SET_DWORD_FIELD(*_MCDI_ARRAY_DWORD(_buf, _field, _index), \
|
||
|
|
EFX_DWORD_0, _value)
|
||
|
|
#define MCDI_ARRAY_DWORD(_buf, _field, _index) \
|
||
|
|
EFX_DWORD_FIELD(*_MCDI_ARRAY_DWORD(_buf, _field, _index), EFX_DWORD_0)
|
||
|
|
#define _MCDI_ARRAY_QWORD(_buf, _field, _index) \
|
||
|
|
(BUILD_BUG_ON_ZERO(MC_CMD_ ## _field ## _LEN != 8) + \
|
||
|
|
(efx_dword_t *)_MCDI_ARRAY_PTR(_buf, _field, _index, 4))
|
||
|
|
#define MCDI_SET_ARRAY_QWORD(_buf, _field, _index, _value) \
|
||
|
|
do { \
|
||
|
|
EFX_SET_DWORD_FIELD(_MCDI_ARRAY_QWORD(_buf, _field, _index)[0],\
|
||
|
|
EFX_DWORD_0, (u32)(_value)); \
|
||
|
|
EFX_SET_DWORD_FIELD(_MCDI_ARRAY_QWORD(_buf, _field, _index)[1],\
|
||
|
|
EFX_DWORD_0, (u64)(_value) >> 32); \
|
||
|
|
} while (0)
|
||
|
|
#define MCDI_ARRAY_FIELD(_buf, _field1, _type, _index, _field2) \
|
||
|
|
MCDI_FIELD(MCDI_ARRAY_STRUCT_PTR(_buf, _field1, _index), \
|
||
|
|
_type ## _TYPEDEF, _field2)
|
||
|
|
|
||
|
|
#define MCDI_EVENT_FIELD(_ev, _field) \
|
||
|
|
EFX_QWORD_FIELD(_ev, MCDI_EVENT_ ## _field)
|
||
|
|
|
||
|
|
void efx_mcdi_print_fwver(struct efx_nic *efx, char *buf, size_t len);
|
||
|
|
int efx_mcdi_get_board_cfg(struct efx_nic *efx, u8 *mac_address,
|
||
|
|
u16 *fw_subtype_list, u32 *capabilities);
|
||
|
|
int efx_mcdi_log_ctrl(struct efx_nic *efx, bool evq, bool uart, u32 dest_evq);
|
||
|
|
int efx_mcdi_nvram_types(struct efx_nic *efx, u32 *nvram_types_out);
|
||
|
|
int efx_mcdi_nvram_info(struct efx_nic *efx, unsigned int type,
|
||
|
|
size_t *size_out, size_t *erase_size_out,
|
||
|
|
bool *protected_out);
|
||
|
|
int efx_mcdi_nvram_test_all(struct efx_nic *efx);
|
||
|
|
int efx_mcdi_handle_assertion(struct efx_nic *efx);
|
||
|
|
void efx_mcdi_set_id_led(struct efx_nic *efx, enum efx_led_mode mode);
|
||
|
|
int efx_mcdi_wol_filter_set_magic(struct efx_nic *efx, const u8 *mac,
|
||
|
|
int *id_out);
|
||
|
|
int efx_mcdi_wol_filter_get_magic(struct efx_nic *efx, int *id_out);
|
||
|
|
int efx_mcdi_wol_filter_remove(struct efx_nic *efx, int id);
|
||
|
|
int efx_mcdi_wol_filter_reset(struct efx_nic *efx);
|
||
|
|
int efx_mcdi_flush_rxqs(struct efx_nic *efx);
|
||
|
|
int efx_mcdi_port_probe(struct efx_nic *efx);
|
||
|
|
void efx_mcdi_port_remove(struct efx_nic *efx);
|
||
|
|
int efx_mcdi_port_reconfigure(struct efx_nic *efx);
|
||
|
|
int efx_mcdi_port_get_number(struct efx_nic *efx);
|
||
|
|
u32 efx_mcdi_phy_get_caps(struct efx_nic *efx);
|
||
|
|
void efx_mcdi_process_link_change(struct efx_nic *efx, efx_qword_t *ev);
|
||
|
|
int efx_mcdi_set_mac(struct efx_nic *efx);
|
||
|
|
#define EFX_MC_STATS_GENERATION_INVALID ((__force __le64)(-1))
|
||
|
|
void efx_mcdi_mac_start_stats(struct efx_nic *efx);
|
||
|
|
void efx_mcdi_mac_stop_stats(struct efx_nic *efx);
|
||
|
|
void efx_mcdi_mac_pull_stats(struct efx_nic *efx);
|
||
|
|
bool efx_mcdi_mac_check_fault(struct efx_nic *efx);
|
||
|
|
enum reset_type efx_mcdi_map_reset_reason(enum reset_type reason);
|
||
|
|
int efx_mcdi_reset(struct efx_nic *efx, enum reset_type method);
|
||
|
|
int efx_mcdi_set_workaround(struct efx_nic *efx, u32 type, bool enabled,
|
||
|
|
unsigned int *flags);
|
||
|
|
int efx_mcdi_get_workarounds(struct efx_nic *efx, unsigned int *impl_out,
|
||
|
|
unsigned int *enabled_out);
|
||
|
|
|
||
|
|
#ifdef CONFIG_SFC_MCDI_MON
|
||
|
|
int efx_mcdi_mon_probe(struct efx_nic *efx);
|
||
|
|
void efx_mcdi_mon_remove(struct efx_nic *efx);
|
||
|
|
#else
|
||
|
|
static inline int efx_mcdi_mon_probe(struct efx_nic *efx) { return 0; }
|
||
|
|
static inline void efx_mcdi_mon_remove(struct efx_nic *efx) {}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef CONFIG_SFC_MTD
|
||
|
|
int efx_mcdi_mtd_read(struct mtd_info *mtd, loff_t start, size_t len,
|
||
|
|
size_t *retlen, u8 *buffer);
|
||
|
|
int efx_mcdi_mtd_erase(struct mtd_info *mtd, loff_t start, size_t len);
|
||
|
|
int efx_mcdi_mtd_write(struct mtd_info *mtd, loff_t start, size_t len,
|
||
|
|
size_t *retlen, const u8 *buffer);
|
||
|
|
int efx_mcdi_mtd_sync(struct mtd_info *mtd);
|
||
|
|
void efx_mcdi_mtd_rename(struct efx_mtd_partition *part);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* EFX_MCDI_H */
|