AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/drivers/net/ethernet/sfc/mcdi.h
Joe Perches 00aef9867e sfc: Remove extern from function prototypes 
There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
2013-09-24 12:52:53 -07:00

326 lines
13 KiB
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/****************************************************************************
* Driver for Solarflare network controllers and boards
* Copyright 2008-2013 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 request handling state
* @MCDI_STATE_QUIESCENT: No pending MCDI requests. If the caller holds the
* mcdi @iface_lock then they are able to move to %MCDI_STATE_RUNNING
* @MCDI_STATE_RUNNING_SYNC: There is a synchronous MCDI request pending.
* Only the thread that moved into this state is allowed to move out of it.
* @MCDI_STATE_RUNNING_ASYNC: There is an asynchronous MCDI request pending.
* @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_SYNC,
MCDI_STATE_RUNNING_ASYNC,
MCDI_STATE_COMPLETED,
};
enum efx_mcdi_mode {
MCDI_MODE_POLL,
MCDI_MODE_EVENTS,
};
/**
* struct efx_mcdi_iface - MCDI protocol context
* @efx: The associated NIC.
* @state: Request handling state. Waited for by @wq.
* @mode: Poll for mcdi completion, or wait for an mcdi_event.
* @wq: Wait queue for threads waiting for @state != %MCDI_STATE_RUNNING
* @new_epoch: Indicates start of day or start of MC reboot recovery
* @iface_lock: Serialises access to @seqno, @credits and response metadata
* @seqno: The next sequence number to use for mcdi requests.
* @credits: Number of spurious MCDI completion events allowed before we
* trigger a fatal error
* @resprc: Response error/success code (Linux numbering)
* @resp_hdr_len: Response header length
* @resp_data_len: Response data (SDU or error) length
* @async_lock: Serialises access to @async_list while event processing is
* enabled
* @async_list: Queue of asynchronous requests
* @async_timer: Timer for asynchronous request timeout
*/
struct efx_mcdi_iface {
struct efx_nic *efx;
enum efx_mcdi_state state;
enum efx_mcdi_mode mode;
wait_queue_head_t wq;
spinlock_t iface_lock;
bool new_epoch;
unsigned int credits;
unsigned int seqno;
int resprc;
size_t resp_hdr_len;
size_t resp_data_len;
spinlock_t async_lock;
struct list_head async_list;
struct timer_list async_timer;
};
struct efx_mcdi_mon {
struct efx_buffer dma_buf;
struct mutex update_lock;
unsigned long last_update;
struct device *device;
struct efx_mcdi_mon_attribute *attrs;
unsigned int n_attrs;
};
struct efx_mcdi_mtd_partition {
struct efx_mtd_partition common;
bool updating;
u16 nvram_type;
u16 fw_subtype;
};
#define to_efx_mcdi_mtd_partition(mtd) \
container_of(mtd, struct efx_mcdi_mtd_partition, common.mtd)
/**
* struct efx_mcdi_data - extra state for NICs that implement MCDI
* @iface: Interface/protocol state
* @hwmon: Hardware monitor state
*/
struct efx_mcdi_data {
struct efx_mcdi_iface iface;
#ifdef CONFIG_SFC_MCDI_MON
struct efx_mcdi_mon hwmon;
#endif
};
#ifdef CONFIG_SFC_MCDI_MON
static inline struct efx_mcdi_mon *efx_mcdi_mon(struct efx_nic *efx)
{
EFX_BUG_ON_PARANOID(!efx->mcdi);
return &efx->mcdi->hwmon;
}
#endif
int efx_mcdi_init(struct efx_nic *efx);
void efx_mcdi_fini(struct efx_nic *efx);
int efx_mcdi_rpc(struct efx_nic *efx, unsigned cmd, const efx_dword_t *inbuf,
size_t inlen, efx_dword_t *outbuf, size_t outlen,
size_t *outlen_actual);
int efx_mcdi_rpc_start(struct efx_nic *efx, unsigned cmd,
const efx_dword_t *inbuf, size_t inlen);
int efx_mcdi_rpc_finish(struct efx_nic *efx, unsigned cmd, size_t inlen,
efx_dword_t *outbuf, size_t outlen,
size_t *outlen_actual);
typedef void efx_mcdi_async_completer(struct efx_nic *efx,
unsigned long cookie, int rc,
efx_dword_t *outbuf,
size_t outlen_actual);
int efx_mcdi_rpc_async(struct efx_nic *efx, unsigned int cmd,
const efx_dword_t *inbuf, size_t inlen, size_t outlen,
efx_mcdi_async_completer *complete,
unsigned long cookie);
int efx_mcdi_poll_reboot(struct efx_nic *efx);
void efx_mcdi_mode_poll(struct efx_nic *efx);
void efx_mcdi_mode_event(struct efx_nic *efx);
void efx_mcdi_flush_async(struct efx_nic *efx);
void efx_mcdi_process_event(struct efx_channel *channel, efx_qword_t *event);
void efx_mcdi_sensor_event(struct efx_nic *efx, efx_qword_t *ev);
/* We expect that 16- and 32-bit fields in MCDI requests and responses
* are appropriately aligned, but 64-bit fields are only
* 32-bit-aligned. Also, on Siena we must copy to the MC shared
* memory strictly 32 bits at a time, so add any necessary padding.
*/
#define MCDI_DECLARE_BUF(_name, _len) \
efx_dword_t _name[DIV_ROUND_UP(_len, 4)]
#define _MCDI_PTR(_buf, _offset) \
((u8 *)(_buf) + (_offset))
#define MCDI_PTR(_buf, _field) \
_MCDI_PTR(_buf, MC_CMD_ ## _field ## _OFST)
#define _MCDI_CHECK_ALIGN(_ofst, _align) \
((_ofst) + BUILD_BUG_ON_ZERO((_ofst) & (_align - 1)))
#define _MCDI_DWORD(_buf, _field) \
((_buf) + (_MCDI_CHECK_ALIGN(MC_CMD_ ## _field ## _OFST, 4) >> 2))
#define MCDI_WORD(_buf, _field) \
((u16)BUILD_BUG_ON_ZERO(MC_CMD_ ## _field ## _LEN != 2) + \
le16_to_cpu(*(__force const __le16 *)MCDI_PTR(_buf, _field)))
#define MCDI_SET_DWORD(_buf, _field, _value) \
EFX_POPULATE_DWORD_1(*_MCDI_DWORD(_buf, _field), EFX_DWORD_0, _value)
#define MCDI_DWORD(_buf, _field) \
EFX_DWORD_FIELD(*_MCDI_DWORD(_buf, _field), EFX_DWORD_0)
#define MCDI_POPULATE_DWORD_1(_buf, _field, _name1, _value1) \
EFX_POPULATE_DWORD_1(*_MCDI_DWORD(_buf, _field), \
MC_CMD_ ## _name1, _value1)
#define MCDI_POPULATE_DWORD_2(_buf, _field, _name1, _value1, \
_name2, _value2) \
EFX_POPULATE_DWORD_2(*_MCDI_DWORD(_buf, _field), \
MC_CMD_ ## _name1, _value1, \
MC_CMD_ ## _name2, _value2)
#define MCDI_POPULATE_DWORD_3(_buf, _field, _name1, _value1, \
_name2, _value2, _name3, _value3) \
EFX_POPULATE_DWORD_3(*_MCDI_DWORD(_buf, _field), \
MC_CMD_ ## _name1, _value1, \
MC_CMD_ ## _name2, _value2, \
MC_CMD_ ## _name3, _value3)
#define MCDI_POPULATE_DWORD_4(_buf, _field, _name1, _value1, \
_name2, _value2, _name3, _value3, \
_name4, _value4) \
EFX_POPULATE_DWORD_4(*_MCDI_DWORD(_buf, _field), \
MC_CMD_ ## _name1, _value1, \
MC_CMD_ ## _name2, _value2, \
MC_CMD_ ## _name3, _value3, \
MC_CMD_ ## _name4, _value4)
#define MCDI_POPULATE_DWORD_5(_buf, _field, _name1, _value1, \
_name2, _value2, _name3, _value3, \
_name4, _value4, _name5, _value5) \
EFX_POPULATE_DWORD_5(*_MCDI_DWORD(_buf, _field), \
MC_CMD_ ## _name1, _value1, \
MC_CMD_ ## _name2, _value2, \
MC_CMD_ ## _name3, _value3, \
MC_CMD_ ## _name4, _value4, \
MC_CMD_ ## _name5, _value5)
#define MCDI_POPULATE_DWORD_6(_buf, _field, _name1, _value1, \
_name2, _value2, _name3, _value3, \
_name4, _value4, _name5, _value5, \
_name6, _value6) \
EFX_POPULATE_DWORD_6(*_MCDI_DWORD(_buf, _field), \
MC_CMD_ ## _name1, _value1, \
MC_CMD_ ## _name2, _value2, \
MC_CMD_ ## _name3, _value3, \
MC_CMD_ ## _name4, _value4, \
MC_CMD_ ## _name5, _value5, \
MC_CMD_ ## _name6, _value6)
#define MCDI_POPULATE_DWORD_7(_buf, _field, _name1, _value1, \
_name2, _value2, _name3, _value3, \
_name4, _value4, _name5, _value5, \
_name6, _value6, _name7, _value7) \
EFX_POPULATE_DWORD_7(*_MCDI_DWORD(_buf, _field), \
MC_CMD_ ## _name1, _value1, \
MC_CMD_ ## _name2, _value2, \
MC_CMD_ ## _name3, _value3, \
MC_CMD_ ## _name4, _value4, \
MC_CMD_ ## _name5, _value5, \
MC_CMD_ ## _name6, _value6, \
MC_CMD_ ## _name7, _value7)
#define MCDI_SET_QWORD(_buf, _field, _value) \
do { \
EFX_POPULATE_DWORD_1(_MCDI_DWORD(_buf, _field)[0], \
EFX_DWORD_0, (u32)(_value)); \
EFX_POPULATE_DWORD_1(_MCDI_DWORD(_buf, _field)[1], \
EFX_DWORD_0, (u64)(_value) >> 32); \
} while (0)
#define MCDI_QWORD(_buf, _field) \
(EFX_DWORD_FIELD(_MCDI_DWORD(_buf, _field)[0], EFX_DWORD_0) | \
(u64)EFX_DWORD_FIELD(_MCDI_DWORD(_buf, _field)[1], EFX_DWORD_0) << 32)
#define MCDI_FIELD(_ptr, _type, _field) \
EFX_EXTRACT_DWORD( \
*(efx_dword_t *) \
_MCDI_PTR(_ptr, MC_CMD_ ## _type ## _ ## _field ## _OFST & ~3),\
MC_CMD_ ## _type ## _ ## _field ## _LBN & 0x1f, \
(MC_CMD_ ## _type ## _ ## _field ## _LBN & 0x1f) + \
MC_CMD_ ## _type ## _ ## _field ## _WIDTH - 1)
#define _MCDI_ARRAY_PTR(_buf, _field, _index, _align) \
(_MCDI_PTR(_buf, _MCDI_CHECK_ALIGN(MC_CMD_ ## _field ## _OFST, _align))\
+ (_index) * _MCDI_CHECK_ALIGN(MC_CMD_ ## _field ## _LEN, _align))
#define MCDI_DECLARE_STRUCT_PTR(_name) \
efx_dword_t *_name
#define MCDI_ARRAY_STRUCT_PTR(_buf, _field, _index) \
((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);
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);
#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 */
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