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src/drivers/net/sfc/mcdi.h
166 строк
7 KB
Martin Habets
[sfc] Update email addresses
28 дек 2020, 21:41
28 дек 2020, 21:41
da491ea
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/**************************************************************************** * Driver for Solarflare network controllers and boards * * Written by Martin Habets <habetsm.xilinx@gmail.com>, maintained * by <pre-boot-drivers@xilinx.com> * * Copyright 2012-2019 Solarflare Communications Inc. * Copyright 2019-2020 Xilinx Inc. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of the * License, or any later version. * * You can also choose to distribute this program under the terms of * the Unmodified Binary Distribution Licence (as given in the file * COPYING.UBDL), provided that you have satisfied its requirements. */ #ifndef SFC_MCDI_H #define SFC_MCDI_H FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); #ifndef DIV_ROUND_UP #define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d)) #endif #define MCDI_SEQ_MASK 0xf /* 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_DECLARE_BUF_OUT_OR_ERR(_name, _len) \ MCDI_DECLARE_BUF(_name, max_t(size_t, _len, 8)) #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) #endif