diff options
Diffstat (limited to 'include/uapi/linux/genwqe')
| -rw-r--r-- | include/uapi/linux/genwqe/genwqe_card.h | 500 |
1 files changed, 500 insertions, 0 deletions
diff --git a/include/uapi/linux/genwqe/genwqe_card.h b/include/uapi/linux/genwqe/genwqe_card.h new file mode 100644 index 000000000000..795e957bb840 --- /dev/null +++ b/include/uapi/linux/genwqe/genwqe_card.h @@ -0,0 +1,500 @@ +#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@de.ibm.com> + * 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_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__ */ |