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genwqe_card.h
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #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__ */