/usr/include/linux/genwqe/genwqe_card.h is in linux-libc-dev 4.15.0-20.21.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#ifndef __GENWQE_CARD_H__
#define __GENWQE_CARD_H__
/**
* IBM Accelerator Family 'GenWQE'
*
* (C) Copyright IBM Corp. 2013
*
* Author: Frank Haverkamp <haver@linux.vnet.ibm.com>
* Author: Joerg-Stephan Vogt <jsvogt@de.ibm.com>
* Author: Michael Jung <mijung@gmx.net>
* Author: Michael Ruettger <michael@ibmra.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License (version 2 only)
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
/*
* User-space API for the GenWQE card. For debugging and test purposes
* the register addresses are included here too.
*/
#include <linux/types.h>
#include <linux/ioctl.h>
/* Basename of sysfs, debugfs and /dev interfaces */
#define GENWQE_DEVNAME "genwqe"
#define GENWQE_TYPE_ALTERA_230 0x00 /* GenWQE4 Stratix-IV-230 */
#define GENWQE_TYPE_ALTERA_530 0x01 /* GenWQE4 Stratix-IV-530 */
#define GENWQE_TYPE_ALTERA_A4 0x02 /* GenWQE5 A4 Stratix-V-A4 */
#define GENWQE_TYPE_ALTERA_A7 0x03 /* GenWQE5 A7 Stratix-V-A7 */
/* MMIO Unit offsets: Each UnitID occupies a defined address range */
#define GENWQE_UID_OFFS(uid) ((uid) << 24)
#define GENWQE_SLU_OFFS GENWQE_UID_OFFS(0)
#define GENWQE_HSU_OFFS GENWQE_UID_OFFS(1)
#define GENWQE_APP_OFFS GENWQE_UID_OFFS(2)
#define GENWQE_MAX_UNITS 3
/* Common offsets per UnitID */
#define IO_EXTENDED_ERROR_POINTER 0x00000048
#define IO_ERROR_INJECT_SELECTOR 0x00000060
#define IO_EXTENDED_DIAG_SELECTOR 0x00000070
#define IO_EXTENDED_DIAG_READ_MBX 0x00000078
#define IO_EXTENDED_DIAG_MAP(ring) (0x00000500 | ((ring) << 3))
#define GENWQE_EXTENDED_DIAG_SELECTOR(ring, trace) (((ring) << 8) | (trace))
/* UnitID 0: Service Layer Unit (SLU) */
/* SLU: Unit Configuration Register */
#define IO_SLU_UNITCFG 0x00000000
#define IO_SLU_UNITCFG_TYPE_MASK 0x000000000ff00000 /* 27:20 */
/* SLU: Fault Isolation Register (FIR) (ac_slu_fir) */
#define IO_SLU_FIR 0x00000008 /* read only, wr direct */
#define IO_SLU_FIR_CLR 0x00000010 /* read and clear */
/* SLU: First Error Capture Register (FEC/WOF) */
#define IO_SLU_FEC 0x00000018
#define IO_SLU_ERR_ACT_MASK 0x00000020
#define IO_SLU_ERR_ATTN_MASK 0x00000028
#define IO_SLU_FIRX1_ACT_MASK 0x00000030
#define IO_SLU_FIRX0_ACT_MASK 0x00000038
#define IO_SLU_SEC_LEM_DEBUG_OVR 0x00000040
#define IO_SLU_EXTENDED_ERR_PTR 0x00000048
#define IO_SLU_COMMON_CONFIG 0x00000060
#define IO_SLU_FLASH_FIR 0x00000108
#define IO_SLU_SLC_FIR 0x00000110
#define IO_SLU_RIU_TRAP 0x00000280
#define IO_SLU_FLASH_FEC 0x00000308
#define IO_SLU_SLC_FEC 0x00000310
/*
* The Virtual Function's Access is from offset 0x00010000
* The Physical Function's Access is from offset 0x00050000
* Single Shared Registers exists only at offset 0x00060000
*
* SLC: Queue Virtual Window Window for accessing into a specific VF
* queue. When accessing the 0x10000 space using the 0x50000 address
* segment, the value indicated here is used to specify which VF
* register is decoded. This register, and the 0x50000 register space
* can only be accessed by the PF. Example, if this register is set to
* 0x2, then a read from 0x50000 is the same as a read from 0x10000
* from VF=2.
*/
/* SLC: Queue Segment */
#define IO_SLC_QUEUE_SEGMENT 0x00010000
#define IO_SLC_VF_QUEUE_SEGMENT 0x00050000
/* SLC: Queue Offset */
#define IO_SLC_QUEUE_OFFSET 0x00010008
#define IO_SLC_VF_QUEUE_OFFSET 0x00050008
/* SLC: Queue Configuration */
#define IO_SLC_QUEUE_CONFIG 0x00010010
#define IO_SLC_VF_QUEUE_CONFIG 0x00050010
/* SLC: Job Timout/Only accessible for the PF */
#define IO_SLC_APPJOB_TIMEOUT 0x00010018
#define IO_SLC_VF_APPJOB_TIMEOUT 0x00050018
#define TIMEOUT_250MS 0x0000000f
#define HEARTBEAT_DISABLE 0x0000ff00
/* SLC: Queue InitSequence Register */
#define IO_SLC_QUEUE_INITSQN 0x00010020
#define IO_SLC_VF_QUEUE_INITSQN 0x00050020
/* SLC: Queue Wrap */
#define IO_SLC_QUEUE_WRAP 0x00010028
#define IO_SLC_VF_QUEUE_WRAP 0x00050028
/* SLC: Queue Status */
#define IO_SLC_QUEUE_STATUS 0x00010100
#define IO_SLC_VF_QUEUE_STATUS 0x00050100
/* SLC: Queue Working Time */
#define IO_SLC_QUEUE_WTIME 0x00010030
#define IO_SLC_VF_QUEUE_WTIME 0x00050030
/* SLC: Queue Error Counts */
#define IO_SLC_QUEUE_ERRCNTS 0x00010038
#define IO_SLC_VF_QUEUE_ERRCNTS 0x00050038
/* SLC: Queue Loast Response Word */
#define IO_SLC_QUEUE_LRW 0x00010040
#define IO_SLC_VF_QUEUE_LRW 0x00050040
/* SLC: Freerunning Timer */
#define IO_SLC_FREE_RUNNING_TIMER 0x00010108
#define IO_SLC_VF_FREE_RUNNING_TIMER 0x00050108
/* SLC: Queue Virtual Access Region */
#define IO_PF_SLC_VIRTUAL_REGION 0x00050000
/* SLC: Queue Virtual Window */
#define IO_PF_SLC_VIRTUAL_WINDOW 0x00060000
/* SLC: DDCB Application Job Pending [n] (n=0:63) */
#define IO_PF_SLC_JOBPEND(n) (0x00061000 + 8*(n))
#define IO_SLC_JOBPEND(n) IO_PF_SLC_JOBPEND(n)
/* SLC: Parser Trap RAM [n] (n=0:31) */
#define IO_SLU_SLC_PARSE_TRAP(n) (0x00011000 + 8*(n))
/* SLC: Dispatcher Trap RAM [n] (n=0:31) */
#define IO_SLU_SLC_DISP_TRAP(n) (0x00011200 + 8*(n))
/* Global Fault Isolation Register (GFIR) */
#define IO_SLC_CFGREG_GFIR 0x00020000
#define GFIR_ERR_TRIGGER 0x0000ffff
/* SLU: Soft Reset Register */
#define IO_SLC_CFGREG_SOFTRESET 0x00020018
/* SLU: Misc Debug Register */
#define IO_SLC_MISC_DEBUG 0x00020060
#define IO_SLC_MISC_DEBUG_CLR 0x00020068
#define IO_SLC_MISC_DEBUG_SET 0x00020070
/* Temperature Sensor Reading */
#define IO_SLU_TEMPERATURE_SENSOR 0x00030000
#define IO_SLU_TEMPERATURE_CONFIG 0x00030008
/* Voltage Margining Control */
#define IO_SLU_VOLTAGE_CONTROL 0x00030080
#define IO_SLU_VOLTAGE_NOMINAL 0x00000000
#define IO_SLU_VOLTAGE_DOWN5 0x00000006
#define IO_SLU_VOLTAGE_UP5 0x00000007
/* Direct LED Control Register */
#define IO_SLU_LEDCONTROL 0x00030100
/* SLU: Flashbus Direct Access -A5 */
#define IO_SLU_FLASH_DIRECTACCESS 0x00040010
/* SLU: Flashbus Direct Access2 -A5 */
#define IO_SLU_FLASH_DIRECTACCESS2 0x00040020
/* SLU: Flashbus Command Interface -A5 */
#define IO_SLU_FLASH_CMDINTF 0x00040030
/* SLU: BitStream Loaded */
#define IO_SLU_BITSTREAM 0x00040040
/* This Register has a switch which will change the CAs to UR */
#define IO_HSU_ERR_BEHAVIOR 0x01001010
#define IO_SLC2_SQB_TRAP 0x00062000
#define IO_SLC2_QUEUE_MANAGER_TRAP 0x00062008
#define IO_SLC2_FLS_MASTER_TRAP 0x00062010
/* UnitID 1: HSU Registers */
#define IO_HSU_UNITCFG 0x01000000
#define IO_HSU_FIR 0x01000008
#define IO_HSU_FIR_CLR 0x01000010
#define IO_HSU_FEC 0x01000018
#define IO_HSU_ERR_ACT_MASK 0x01000020
#define IO_HSU_ERR_ATTN_MASK 0x01000028
#define IO_HSU_FIRX1_ACT_MASK 0x01000030
#define IO_HSU_FIRX0_ACT_MASK 0x01000038
#define IO_HSU_SEC_LEM_DEBUG_OVR 0x01000040
#define IO_HSU_EXTENDED_ERR_PTR 0x01000048
#define IO_HSU_COMMON_CONFIG 0x01000060
/* UnitID 2: Application Unit (APP) */
#define IO_APP_UNITCFG 0x02000000
#define IO_APP_FIR 0x02000008
#define IO_APP_FIR_CLR 0x02000010
#define IO_APP_FEC 0x02000018
#define IO_APP_ERR_ACT_MASK 0x02000020
#define IO_APP_ERR_ATTN_MASK 0x02000028
#define IO_APP_FIRX1_ACT_MASK 0x02000030
#define IO_APP_FIRX0_ACT_MASK 0x02000038
#define IO_APP_SEC_LEM_DEBUG_OVR 0x02000040
#define IO_APP_EXTENDED_ERR_PTR 0x02000048
#define IO_APP_COMMON_CONFIG 0x02000060
#define IO_APP_DEBUG_REG_01 0x02010000
#define IO_APP_DEBUG_REG_02 0x02010008
#define IO_APP_DEBUG_REG_03 0x02010010
#define IO_APP_DEBUG_REG_04 0x02010018
#define IO_APP_DEBUG_REG_05 0x02010020
#define IO_APP_DEBUG_REG_06 0x02010028
#define IO_APP_DEBUG_REG_07 0x02010030
#define IO_APP_DEBUG_REG_08 0x02010038
#define IO_APP_DEBUG_REG_09 0x02010040
#define IO_APP_DEBUG_REG_10 0x02010048
#define IO_APP_DEBUG_REG_11 0x02010050
#define IO_APP_DEBUG_REG_12 0x02010058
#define IO_APP_DEBUG_REG_13 0x02010060
#define IO_APP_DEBUG_REG_14 0x02010068
#define IO_APP_DEBUG_REG_15 0x02010070
#define IO_APP_DEBUG_REG_16 0x02010078
#define IO_APP_DEBUG_REG_17 0x02010080
#define IO_APP_DEBUG_REG_18 0x02010088
/* Read/write from/to registers */
struct genwqe_reg_io {
__u64 num; /* register offset/address */
__u64 val64;
};
/*
* All registers of our card will return values not equal this values.
* If we see IO_ILLEGAL_VALUE on any of our MMIO register reads, the
* card can be considered as unusable. It will need recovery.
*/
#define IO_ILLEGAL_VALUE 0xffffffffffffffffull
/*
* Generic DDCB execution interface.
*
* This interface is a first prototype resulting from discussions we
* had with other teams which wanted to use the Genwqe card. It allows
* to issue a DDCB request in a generic way. The request will block
* until it finishes or time out with error.
*
* Some DDCBs require DMA addresses to be specified in the ASIV
* block. The interface provies the capability to let the kernel
* driver know where those addresses are by specifying the ATS field,
* such that it can replace the user-space addresses with appropriate
* DMA addresses or DMA addresses of a scatter gather list which is
* dynamically created.
*
* Our hardware will refuse DDCB execution if the ATS field is not as
* expected. That means the DDCB execution engine in the chip knows
* where it expects DMA addresses within the ASIV part of the DDCB and
* will check that against the ATS field definition. Any invalid or
* unknown ATS content will lead to DDCB refusal.
*/
/* Genwqe chip Units */
#define DDCB_ACFUNC_SLU 0x00 /* chip service layer unit */
#define DDCB_ACFUNC_APP 0x01 /* chip application */
/* DDCB return codes (RETC) */
#define DDCB_RETC_IDLE 0x0000 /* Unexecuted/DDCB created */
#define DDCB_RETC_PENDING 0x0101 /* Pending Execution */
#define DDCB_RETC_COMPLETE 0x0102 /* Cmd complete. No error */
#define DDCB_RETC_FAULT 0x0104 /* App Err, recoverable */
#define DDCB_RETC_ERROR 0x0108 /* App Err, non-recoverable */
#define DDCB_RETC_FORCED_ERROR 0x01ff /* overwritten by driver */
#define DDCB_RETC_UNEXEC 0x0110 /* Unexe/Removed from queue */
#define DDCB_RETC_TERM 0x0120 /* Terminated */
#define DDCB_RETC_RES0 0x0140 /* Reserved */
#define DDCB_RETC_RES1 0x0180 /* Reserved */
/* DDCB Command Options (CMDOPT) */
#define DDCB_OPT_ECHO_FORCE_NO 0x0000 /* ECHO DDCB */
#define DDCB_OPT_ECHO_FORCE_102 0x0001 /* force return code */
#define DDCB_OPT_ECHO_FORCE_104 0x0002
#define DDCB_OPT_ECHO_FORCE_108 0x0003
#define DDCB_OPT_ECHO_FORCE_110 0x0004 /* only on PF ! */
#define DDCB_OPT_ECHO_FORCE_120 0x0005
#define DDCB_OPT_ECHO_FORCE_140 0x0006
#define DDCB_OPT_ECHO_FORCE_180 0x0007
#define DDCB_OPT_ECHO_COPY_NONE (0 << 5)
#define DDCB_OPT_ECHO_COPY_ALL (1 << 5)
/* Definitions of Service Layer Commands */
#define SLCMD_ECHO_SYNC 0x00 /* PF/VF */
#define SLCMD_MOVE_FLASH 0x06 /* PF only */
#define SLCMD_MOVE_FLASH_FLAGS_MODE 0x03 /* bit 0 and 1 used for mode */
#define SLCMD_MOVE_FLASH_FLAGS_DLOAD 0 /* mode: download */
#define SLCMD_MOVE_FLASH_FLAGS_EMUL 1 /* mode: emulation */
#define SLCMD_MOVE_FLASH_FLAGS_UPLOAD 2 /* mode: upload */
#define SLCMD_MOVE_FLASH_FLAGS_VERIFY 3 /* mode: verify */
#define SLCMD_MOVE_FLASH_FLAG_NOTAP (1 << 2)/* just dump DDCB and exit */
#define SLCMD_MOVE_FLASH_FLAG_POLL (1 << 3)/* wait for RETC >= 0102 */
#define SLCMD_MOVE_FLASH_FLAG_PARTITION (1 << 4)
#define SLCMD_MOVE_FLASH_FLAG_ERASE (1 << 5)
enum genwqe_card_state {
GENWQE_CARD_UNUSED = 0,
GENWQE_CARD_USED = 1,
GENWQE_CARD_FATAL_ERROR = 2,
GENWQE_CARD_RELOAD_BITSTREAM = 3,
GENWQE_CARD_STATE_MAX,
};
/* common struct for chip image exchange */
struct genwqe_bitstream {
__u64 data_addr; /* pointer to image data */
__u32 size; /* size of image file */
__u32 crc; /* crc of this image */
__u64 target_addr; /* starting address in Flash */
__u32 partition; /* '0', '1', or 'v' */
__u32 uid; /* 1=host/x=dram */
__u64 slu_id; /* informational/sim: SluID */
__u64 app_id; /* informational/sim: AppID */
__u16 retc; /* returned from processing */
__u16 attn; /* attention code from processing */
__u32 progress; /* progress code from processing */
};
/* Issuing a specific DDCB command */
#define DDCB_LENGTH 256 /* for debug data */
#define DDCB_ASIV_LENGTH 104 /* len of the DDCB ASIV array */
#define DDCB_ASIV_LENGTH_ATS 96 /* ASIV in ATS architecture */
#define DDCB_ASV_LENGTH 64 /* len of the DDCB ASV array */
#define DDCB_FIXUPS 12 /* maximum number of fixups */
struct genwqe_debug_data {
char driver_version[64];
__u64 slu_unitcfg;
__u64 app_unitcfg;
__u8 ddcb_before[DDCB_LENGTH];
__u8 ddcb_prev[DDCB_LENGTH];
__u8 ddcb_finished[DDCB_LENGTH];
};
/*
* Address Translation Specification (ATS) definitions
*
* Each 4 bit within the ATS 64-bit word specify the required address
* translation at the defined offset.
*
* 63 LSB
* 6666.5555.5555.5544.4444.4443.3333.3333 ... 11
* 3210.9876.5432.1098.7654.3210.9876.5432 ... 1098.7654.3210
*
* offset: 0x00 0x08 0x10 0x18 0x20 0x28 0x30 0x38 ... 0x68 0x70 0x78
* res res res res ASIV ...
* The first 4 entries in the ATS word are reserved. The following nibbles
* each describe at an 8 byte offset the format of the required data.
*/
#define ATS_TYPE_DATA 0x0ull /* data */
#define ATS_TYPE_FLAT_RD 0x4ull /* flat buffer read only */
#define ATS_TYPE_FLAT_RDWR 0x5ull /* flat buffer read/write */
#define ATS_TYPE_SGL_RD 0x6ull /* sgl read only */
#define ATS_TYPE_SGL_RDWR 0x7ull /* sgl read/write */
#define ATS_SET_FLAGS(_struct, _field, _flags) \
(((_flags) & 0xf) << (44 - (4 * (offsetof(_struct, _field) / 8))))
#define ATS_GET_FLAGS(_ats, _byte_offs) \
(((_ats) >> (44 - (4 * ((_byte_offs) / 8)))) & 0xf)
/**
* struct genwqe_ddcb_cmd - User parameter for generic DDCB commands
*
* On the way into the kernel the driver will read the whole data
* structure. On the way out the driver will not copy the ASIV data
* back to user-space.
*/
struct genwqe_ddcb_cmd {
/* START of data copied to/from driver */
__u64 next_addr; /* chaining genwqe_ddcb_cmd */
__u64 flags; /* reserved */
__u8 acfunc; /* accelerators functional unit */
__u8 cmd; /* command to execute */
__u8 asiv_length; /* used parameter length */
__u8 asv_length; /* length of valid return values */
__u16 cmdopts; /* command options */
__u16 retc; /* return code from processing */
__u16 attn; /* attention code from processing */
__u16 vcrc; /* variant crc16 */
__u32 progress; /* progress code from processing */
__u64 deque_ts; /* dequeue time stamp */
__u64 cmplt_ts; /* completion time stamp */
__u64 disp_ts; /* SW processing start */
/* move to end and avoid copy-back */
__u64 ddata_addr; /* collect debug data */
/* command specific values */
__u8 asv[DDCB_ASV_LENGTH];
/* END of data copied from driver */
union {
struct {
__u64 ats;
__u8 asiv[DDCB_ASIV_LENGTH_ATS];
};
/* used for flash update to keep it backward compatible */
__u8 __asiv[DDCB_ASIV_LENGTH];
};
/* END of data copied to driver */
};
#define GENWQE_IOC_CODE 0xa5
/* Access functions */
#define GENWQE_READ_REG64 _IOR(GENWQE_IOC_CODE, 30, struct genwqe_reg_io)
#define GENWQE_WRITE_REG64 _IOW(GENWQE_IOC_CODE, 31, struct genwqe_reg_io)
#define GENWQE_READ_REG32 _IOR(GENWQE_IOC_CODE, 32, struct genwqe_reg_io)
#define GENWQE_WRITE_REG32 _IOW(GENWQE_IOC_CODE, 33, struct genwqe_reg_io)
#define GENWQE_READ_REG16 _IOR(GENWQE_IOC_CODE, 34, struct genwqe_reg_io)
#define GENWQE_WRITE_REG16 _IOW(GENWQE_IOC_CODE, 35, struct genwqe_reg_io)
#define GENWQE_GET_CARD_STATE _IOR(GENWQE_IOC_CODE, 36, enum genwqe_card_state)
/**
* struct genwqe_mem - Memory pinning/unpinning information
* @addr: virtual user space address
* @size: size of the area pin/dma-map/unmap
* direction: 0: read/1: read and write
*
* Avoid pinning and unpinning of memory pages dynamically. Instead
* the idea is to pin the whole buffer space required for DDCB
* opertionas in advance. The driver will reuse this pinning and the
* memory associated with it to setup the sglists for the DDCB
* requests without the need to allocate and free memory or map and
* unmap to get the DMA addresses.
*
* The inverse operation needs to be called after the pinning is not
* needed anymore. The pinnings else the pinnings will get removed
* after the device is closed. Note that pinnings will required
* memory.
*/
struct genwqe_mem {
__u64 addr;
__u64 size;
__u64 direction;
__u64 flags;
};
#define GENWQE_PIN_MEM _IOWR(GENWQE_IOC_CODE, 40, struct genwqe_mem)
#define GENWQE_UNPIN_MEM _IOWR(GENWQE_IOC_CODE, 41, struct genwqe_mem)
/*
* Generic synchronous DDCB execution interface.
* Synchronously execute a DDCB.
*
* Return: 0 on success or negative error code.
* -EINVAL: Invalid parameters (ASIV_LEN, ASV_LEN, illegal fixups
* no mappings found/could not create mappings
* -EFAULT: illegal addresses in fixups, purging failed
* -EBADMSG: enqueing failed, retc != DDCB_RETC_COMPLETE
*/
#define GENWQE_EXECUTE_DDCB \
_IOWR(GENWQE_IOC_CODE, 50, struct genwqe_ddcb_cmd)
#define GENWQE_EXECUTE_RAW_DDCB \
_IOWR(GENWQE_IOC_CODE, 51, struct genwqe_ddcb_cmd)
/* Service Layer functions (PF only) */
#define GENWQE_SLU_UPDATE _IOWR(GENWQE_IOC_CODE, 80, struct genwqe_bitstream)
#define GENWQE_SLU_READ _IOWR(GENWQE_IOC_CODE, 81, struct genwqe_bitstream)
#endif /* __GENWQE_CARD_H__ */
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