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      1 #ifndef __GENWQE_CARD_H__
      2 #define __GENWQE_CARD_H__
      3 
      4 /**
      5  * IBM Accelerator Family 'GenWQE'
      6  *
      7  * (C) Copyright IBM Corp. 2013
      8  *
      9  * Author: Frank Haverkamp <haver (at) linux.vnet.ibm.com>
     10  * Author: Joerg-Stephan Vogt <jsvogt (at) de.ibm.com>
     11  * Author: Michael Jung <mijung (at) gmx.net>
     12  * Author: Michael Ruettger <michael (at) ibmra.de>
     13  *
     14  * This program is free software; you can redistribute it and/or modify
     15  * it under the terms of the GNU General Public License (version 2 only)
     16  * as published by the Free Software Foundation.
     17  *
     18  * This program is distributed in the hope that it will be useful,
     19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
     21  * GNU General Public License for more details.
     22  */
     23 
     24 /*
     25  * User-space API for the GenWQE card. For debugging and test purposes
     26  * the register addresses are included here too.
     27  */
     28 
     29 #include <linux/types.h>
     30 #include <linux/ioctl.h>
     31 
     32 /* Basename of sysfs, debugfs and /dev interfaces */
     33 #define GENWQE_DEVNAME			"genwqe"
     34 
     35 #define GENWQE_TYPE_ALTERA_230		0x00 /* GenWQE4 Stratix-IV-230 */
     36 #define GENWQE_TYPE_ALTERA_530		0x01 /* GenWQE4 Stratix-IV-530 */
     37 #define GENWQE_TYPE_ALTERA_A4		0x02 /* GenWQE5 A4 Stratix-V-A4 */
     38 #define GENWQE_TYPE_ALTERA_A7		0x03 /* GenWQE5 A7 Stratix-V-A7 */
     39 
     40 /* MMIO Unit offsets: Each UnitID occupies a defined address range */
     41 #define GENWQE_UID_OFFS(uid)		((uid) << 24)
     42 #define GENWQE_SLU_OFFS			GENWQE_UID_OFFS(0)
     43 #define GENWQE_HSU_OFFS			GENWQE_UID_OFFS(1)
     44 #define GENWQE_APP_OFFS			GENWQE_UID_OFFS(2)
     45 #define GENWQE_MAX_UNITS		3
     46 
     47 /* Common offsets per UnitID */
     48 #define IO_EXTENDED_ERROR_POINTER	0x00000048
     49 #define IO_ERROR_INJECT_SELECTOR	0x00000060
     50 #define IO_EXTENDED_DIAG_SELECTOR	0x00000070
     51 #define IO_EXTENDED_DIAG_READ_MBX	0x00000078
     52 #define IO_EXTENDED_DIAG_MAP(ring)	(0x00000500 | ((ring) << 3))
     53 
     54 #define GENWQE_EXTENDED_DIAG_SELECTOR(ring, trace) (((ring) << 8) | (trace))
     55 
     56 /* UnitID 0: Service Layer Unit (SLU) */
     57 
     58 /* SLU: Unit Configuration Register */
     59 #define IO_SLU_UNITCFG			0x00000000
     60 #define IO_SLU_UNITCFG_TYPE_MASK	0x000000000ff00000 /* 27:20 */
     61 
     62 /* SLU: Fault Isolation Register (FIR) (ac_slu_fir) */
     63 #define IO_SLU_FIR			0x00000008 /* read only, wr direct */
     64 #define IO_SLU_FIR_CLR			0x00000010 /* read and clear */
     65 
     66 /* SLU: First Error Capture Register (FEC/WOF) */
     67 #define IO_SLU_FEC			0x00000018
     68 
     69 #define IO_SLU_ERR_ACT_MASK		0x00000020
     70 #define IO_SLU_ERR_ATTN_MASK		0x00000028
     71 #define IO_SLU_FIRX1_ACT_MASK		0x00000030
     72 #define IO_SLU_FIRX0_ACT_MASK		0x00000038
     73 #define IO_SLU_SEC_LEM_DEBUG_OVR	0x00000040
     74 #define IO_SLU_EXTENDED_ERR_PTR		0x00000048
     75 #define IO_SLU_COMMON_CONFIG		0x00000060
     76 
     77 #define IO_SLU_FLASH_FIR		0x00000108
     78 #define IO_SLU_SLC_FIR			0x00000110
     79 #define IO_SLU_RIU_TRAP			0x00000280
     80 #define IO_SLU_FLASH_FEC		0x00000308
     81 #define IO_SLU_SLC_FEC			0x00000310
     82 
     83 /*
     84  * The  Virtual Function's Access is from offset 0x00010000
     85  * The Physical Function's Access is from offset 0x00050000
     86  * Single Shared Registers exists only at offset 0x00060000
     87  *
     88  * SLC: Queue Virtual Window Window for accessing into a specific VF
     89  * queue. When accessing the 0x10000 space using the 0x50000 address
     90  * segment, the value indicated here is used to specify which VF
     91  * register is decoded. This register, and the 0x50000 register space
     92  * can only be accessed by the PF. Example, if this register is set to
     93  * 0x2, then a read from 0x50000 is the same as a read from 0x10000
     94  * from VF=2.
     95  */
     96 
     97 /* SLC: Queue Segment */
     98 #define IO_SLC_QUEUE_SEGMENT		0x00010000
     99 #define IO_SLC_VF_QUEUE_SEGMENT		0x00050000
    100 
    101 /* SLC: Queue Offset */
    102 #define IO_SLC_QUEUE_OFFSET		0x00010008
    103 #define IO_SLC_VF_QUEUE_OFFSET		0x00050008
    104 
    105 /* SLC: Queue Configuration */
    106 #define IO_SLC_QUEUE_CONFIG		0x00010010
    107 #define IO_SLC_VF_QUEUE_CONFIG		0x00050010
    108 
    109 /* SLC: Job Timout/Only accessible for the PF */
    110 #define IO_SLC_APPJOB_TIMEOUT		0x00010018
    111 #define IO_SLC_VF_APPJOB_TIMEOUT	0x00050018
    112 #define TIMEOUT_250MS			0x0000000f
    113 #define HEARTBEAT_DISABLE		0x0000ff00
    114 
    115 /* SLC: Queue InitSequence Register */
    116 #define	IO_SLC_QUEUE_INITSQN		0x00010020
    117 #define	IO_SLC_VF_QUEUE_INITSQN		0x00050020
    118 
    119 /* SLC: Queue Wrap */
    120 #define IO_SLC_QUEUE_WRAP		0x00010028
    121 #define IO_SLC_VF_QUEUE_WRAP		0x00050028
    122 
    123 /* SLC: Queue Status */
    124 #define IO_SLC_QUEUE_STATUS		0x00010100
    125 #define IO_SLC_VF_QUEUE_STATUS		0x00050100
    126 
    127 /* SLC: Queue Working Time */
    128 #define IO_SLC_QUEUE_WTIME		0x00010030
    129 #define IO_SLC_VF_QUEUE_WTIME		0x00050030
    130 
    131 /* SLC: Queue Error Counts */
    132 #define IO_SLC_QUEUE_ERRCNTS		0x00010038
    133 #define IO_SLC_VF_QUEUE_ERRCNTS		0x00050038
    134 
    135 /* SLC: Queue Loast Response Word */
    136 #define IO_SLC_QUEUE_LRW		0x00010040
    137 #define IO_SLC_VF_QUEUE_LRW		0x00050040
    138 
    139 /* SLC: Freerunning Timer */
    140 #define IO_SLC_FREE_RUNNING_TIMER	0x00010108
    141 #define IO_SLC_VF_FREE_RUNNING_TIMER	0x00050108
    142 
    143 /* SLC: Queue Virtual Access Region */
    144 #define IO_PF_SLC_VIRTUAL_REGION	0x00050000
    145 
    146 /* SLC: Queue Virtual Window */
    147 #define IO_PF_SLC_VIRTUAL_WINDOW	0x00060000
    148 
    149 /* SLC: DDCB Application Job Pending [n] (n=0:63) */
    150 #define IO_PF_SLC_JOBPEND(n)		(0x00061000 + 8*(n))
    151 #define IO_SLC_JOBPEND(n)		IO_PF_SLC_JOBPEND(n)
    152 
    153 /* SLC: Parser Trap RAM [n] (n=0:31) */
    154 #define IO_SLU_SLC_PARSE_TRAP(n)	(0x00011000 + 8*(n))
    155 
    156 /* SLC: Dispatcher Trap RAM [n] (n=0:31) */
    157 #define IO_SLU_SLC_DISP_TRAP(n)	(0x00011200 + 8*(n))
    158 
    159 /* Global Fault Isolation Register (GFIR) */
    160 #define IO_SLC_CFGREG_GFIR		0x00020000
    161 #define GFIR_ERR_TRIGGER		0x0000ffff
    162 
    163 /* SLU: Soft Reset Register */
    164 #define IO_SLC_CFGREG_SOFTRESET		0x00020018
    165 
    166 /* SLU: Misc Debug Register */
    167 #define IO_SLC_MISC_DEBUG		0x00020060
    168 #define IO_SLC_MISC_DEBUG_CLR		0x00020068
    169 #define IO_SLC_MISC_DEBUG_SET		0x00020070
    170 
    171 /* Temperature Sensor Reading */
    172 #define IO_SLU_TEMPERATURE_SENSOR	0x00030000
    173 #define IO_SLU_TEMPERATURE_CONFIG	0x00030008
    174 
    175 /* Voltage Margining Control */
    176 #define IO_SLU_VOLTAGE_CONTROL		0x00030080
    177 #define IO_SLU_VOLTAGE_NOMINAL		0x00000000
    178 #define IO_SLU_VOLTAGE_DOWN5		0x00000006
    179 #define IO_SLU_VOLTAGE_UP5		0x00000007
    180 
    181 /* Direct LED Control Register */
    182 #define IO_SLU_LEDCONTROL		0x00030100
    183 
    184 /* SLU: Flashbus Direct Access -A5 */
    185 #define IO_SLU_FLASH_DIRECTACCESS	0x00040010
    186 
    187 /* SLU: Flashbus Direct Access2 -A5 */
    188 #define IO_SLU_FLASH_DIRECTACCESS2	0x00040020
    189 
    190 /* SLU: Flashbus Command Interface -A5 */
    191 #define IO_SLU_FLASH_CMDINTF		0x00040030
    192 
    193 /* SLU: BitStream Loaded */
    194 #define IO_SLU_BITSTREAM		0x00040040
    195 
    196 /* This Register has a switch which will change the CAs to UR */
    197 #define IO_HSU_ERR_BEHAVIOR		0x01001010
    198 
    199 #define IO_SLC2_SQB_TRAP		0x00062000
    200 #define IO_SLC2_QUEUE_MANAGER_TRAP	0x00062008
    201 #define IO_SLC2_FLS_MASTER_TRAP		0x00062010
    202 
    203 /* UnitID 1: HSU Registers */
    204 #define IO_HSU_UNITCFG			0x01000000
    205 #define IO_HSU_FIR			0x01000008
    206 #define IO_HSU_FIR_CLR			0x01000010
    207 #define IO_HSU_FEC			0x01000018
    208 #define IO_HSU_ERR_ACT_MASK		0x01000020
    209 #define IO_HSU_ERR_ATTN_MASK		0x01000028
    210 #define IO_HSU_FIRX1_ACT_MASK		0x01000030
    211 #define IO_HSU_FIRX0_ACT_MASK		0x01000038
    212 #define IO_HSU_SEC_LEM_DEBUG_OVR	0x01000040
    213 #define IO_HSU_EXTENDED_ERR_PTR		0x01000048
    214 #define IO_HSU_COMMON_CONFIG		0x01000060
    215 
    216 /* UnitID 2: Application Unit (APP) */
    217 #define IO_APP_UNITCFG			0x02000000
    218 #define IO_APP_FIR			0x02000008
    219 #define IO_APP_FIR_CLR			0x02000010
    220 #define IO_APP_FEC			0x02000018
    221 #define IO_APP_ERR_ACT_MASK		0x02000020
    222 #define IO_APP_ERR_ATTN_MASK		0x02000028
    223 #define IO_APP_FIRX1_ACT_MASK		0x02000030
    224 #define IO_APP_FIRX0_ACT_MASK		0x02000038
    225 #define IO_APP_SEC_LEM_DEBUG_OVR	0x02000040
    226 #define IO_APP_EXTENDED_ERR_PTR		0x02000048
    227 #define IO_APP_COMMON_CONFIG		0x02000060
    228 
    229 #define IO_APP_DEBUG_REG_01		0x02010000
    230 #define IO_APP_DEBUG_REG_02		0x02010008
    231 #define IO_APP_DEBUG_REG_03		0x02010010
    232 #define IO_APP_DEBUG_REG_04		0x02010018
    233 #define IO_APP_DEBUG_REG_05		0x02010020
    234 #define IO_APP_DEBUG_REG_06		0x02010028
    235 #define IO_APP_DEBUG_REG_07		0x02010030
    236 #define IO_APP_DEBUG_REG_08		0x02010038
    237 #define IO_APP_DEBUG_REG_09		0x02010040
    238 #define IO_APP_DEBUG_REG_10		0x02010048
    239 #define IO_APP_DEBUG_REG_11		0x02010050
    240 #define IO_APP_DEBUG_REG_12		0x02010058
    241 #define IO_APP_DEBUG_REG_13		0x02010060
    242 #define IO_APP_DEBUG_REG_14		0x02010068
    243 #define IO_APP_DEBUG_REG_15		0x02010070
    244 #define IO_APP_DEBUG_REG_16		0x02010078
    245 #define IO_APP_DEBUG_REG_17		0x02010080
    246 #define IO_APP_DEBUG_REG_18		0x02010088
    247 
    248 /* Read/write from/to registers */
    249 struct genwqe_reg_io {
    250 	__u64 num;		/* register offset/address */
    251 	__u64 val64;
    252 };
    253 
    254 /*
    255  * All registers of our card will return values not equal this values.
    256  * If we see IO_ILLEGAL_VALUE on any of our MMIO register reads, the
    257  * card can be considered as unusable. It will need recovery.
    258  */
    259 #define IO_ILLEGAL_VALUE		0xffffffffffffffffull
    260 
    261 /*
    262  * Generic DDCB execution interface.
    263  *
    264  * This interface is a first prototype resulting from discussions we
    265  * had with other teams which wanted to use the Genwqe card. It allows
    266  * to issue a DDCB request in a generic way. The request will block
    267  * until it finishes or time out with error.
    268  *
    269  * Some DDCBs require DMA addresses to be specified in the ASIV
    270  * block. The interface provies the capability to let the kernel
    271  * driver know where those addresses are by specifying the ATS field,
    272  * such that it can replace the user-space addresses with appropriate
    273  * DMA addresses or DMA addresses of a scatter gather list which is
    274  * dynamically created.
    275  *
    276  * Our hardware will refuse DDCB execution if the ATS field is not as
    277  * expected. That means the DDCB execution engine in the chip knows
    278  * where it expects DMA addresses within the ASIV part of the DDCB and
    279  * will check that against the ATS field definition. Any invalid or
    280  * unknown ATS content will lead to DDCB refusal.
    281  */
    282 
    283 /* Genwqe chip Units */
    284 #define DDCB_ACFUNC_SLU			0x00  /* chip service layer unit */
    285 #define DDCB_ACFUNC_APP			0x01  /* chip application */
    286 
    287 /* DDCB return codes (RETC) */
    288 #define DDCB_RETC_IDLE			0x0000 /* Unexecuted/DDCB created */
    289 #define DDCB_RETC_PENDING		0x0101 /* Pending Execution */
    290 #define DDCB_RETC_COMPLETE		0x0102 /* Cmd complete. No error */
    291 #define DDCB_RETC_FAULT			0x0104 /* App Err, recoverable */
    292 #define DDCB_RETC_ERROR			0x0108 /* App Err, non-recoverable */
    293 #define DDCB_RETC_FORCED_ERROR		0x01ff /* overwritten by driver  */
    294 
    295 #define DDCB_RETC_UNEXEC		0x0110 /* Unexe/Removed from queue */
    296 #define DDCB_RETC_TERM			0x0120 /* Terminated */
    297 #define DDCB_RETC_RES0			0x0140 /* Reserved */
    298 #define DDCB_RETC_RES1			0x0180 /* Reserved */
    299 
    300 /* DDCB Command Options (CMDOPT) */
    301 #define DDCB_OPT_ECHO_FORCE_NO		0x0000 /* ECHO DDCB */
    302 #define DDCB_OPT_ECHO_FORCE_102		0x0001 /* force return code */
    303 #define DDCB_OPT_ECHO_FORCE_104		0x0002
    304 #define DDCB_OPT_ECHO_FORCE_108		0x0003
    305 
    306 #define DDCB_OPT_ECHO_FORCE_110		0x0004 /* only on PF ! */
    307 #define DDCB_OPT_ECHO_FORCE_120		0x0005
    308 #define DDCB_OPT_ECHO_FORCE_140		0x0006
    309 #define DDCB_OPT_ECHO_FORCE_180		0x0007
    310 
    311 #define DDCB_OPT_ECHO_COPY_NONE		(0 << 5)
    312 #define DDCB_OPT_ECHO_COPY_ALL		(1 << 5)
    313 
    314 /* Definitions of Service Layer Commands */
    315 #define SLCMD_ECHO_SYNC			0x00 /* PF/VF */
    316 #define SLCMD_MOVE_FLASH		0x06 /* PF only */
    317 #define SLCMD_MOVE_FLASH_FLAGS_MODE	0x03 /* bit 0 and 1 used for mode */
    318 #define SLCMD_MOVE_FLASH_FLAGS_DLOAD	0	/* mode: download  */
    319 #define SLCMD_MOVE_FLASH_FLAGS_EMUL	1	/* mode: emulation */
    320 #define SLCMD_MOVE_FLASH_FLAGS_UPLOAD	2	/* mode: upload	   */
    321 #define SLCMD_MOVE_FLASH_FLAGS_VERIFY	3	/* mode: verify	   */
    322 #define SLCMD_MOVE_FLASH_FLAG_NOTAP	(1 << 2)/* just dump DDCB and exit */
    323 #define SLCMD_MOVE_FLASH_FLAG_POLL	(1 << 3)/* wait for RETC >= 0102   */
    324 #define SLCMD_MOVE_FLASH_FLAG_PARTITION	(1 << 4)
    325 #define SLCMD_MOVE_FLASH_FLAG_ERASE	(1 << 5)
    326 
    327 enum genwqe_card_state {
    328 	GENWQE_CARD_UNUSED = 0,
    329 	GENWQE_CARD_USED = 1,
    330 	GENWQE_CARD_FATAL_ERROR = 2,
    331 	GENWQE_CARD_RELOAD_BITSTREAM = 3,
    332 	GENWQE_CARD_STATE_MAX,
    333 };
    334 
    335 /* common struct for chip image exchange */
    336 struct genwqe_bitstream {
    337 	__u64 data_addr;		/* pointer to image data */
    338 	__u32 size;			/* size of image file */
    339 	__u32 crc;			/* crc of this image */
    340 	__u64 target_addr;		/* starting address in Flash */
    341 	__u32 partition;		/* '0', '1', or 'v' */
    342 	__u32 uid;			/* 1=host/x=dram */
    343 
    344 	__u64 slu_id;			/* informational/sim: SluID */
    345 	__u64 app_id;			/* informational/sim: AppID */
    346 
    347 	__u16 retc;			/* returned from processing */
    348 	__u16 attn;			/* attention code from processing */
    349 	__u32 progress;			/* progress code from processing */
    350 };
    351 
    352 /* Issuing a specific DDCB command */
    353 #define DDCB_LENGTH			256 /* for debug data */
    354 #define DDCB_ASIV_LENGTH		104 /* len of the DDCB ASIV array */
    355 #define DDCB_ASIV_LENGTH_ATS		96  /* ASIV in ATS architecture */
    356 #define DDCB_ASV_LENGTH			64  /* len of the DDCB ASV array  */
    357 #define DDCB_FIXUPS			12  /* maximum number of fixups */
    358 
    359 struct genwqe_debug_data {
    360 	char driver_version[64];
    361 	__u64 slu_unitcfg;
    362 	__u64 app_unitcfg;
    363 
    364 	__u8  ddcb_before[DDCB_LENGTH];
    365 	__u8  ddcb_prev[DDCB_LENGTH];
    366 	__u8  ddcb_finished[DDCB_LENGTH];
    367 };
    368 
    369 /*
    370  * Address Translation Specification (ATS) definitions
    371  *
    372  * Each 4 bit within the ATS 64-bit word specify the required address
    373  * translation at the defined offset.
    374  *
    375  * 63 LSB
    376  *         6666.5555.5555.5544.4444.4443.3333.3333 ... 11
    377  *         3210.9876.5432.1098.7654.3210.9876.5432 ... 1098.7654.3210
    378  *
    379  * offset: 0x00 0x08 0x10 0x18 0x20 0x28 0x30 0x38 ... 0x68 0x70 0x78
    380  *         res  res  res  res  ASIV ...
    381  * The first 4 entries in the ATS word are reserved. The following nibbles
    382  * each describe at an 8 byte offset the format of the required data.
    383  */
    384 #define ATS_TYPE_DATA			0x0ull /* data  */
    385 #define ATS_TYPE_FLAT_RD		0x4ull /* flat buffer read only */
    386 #define ATS_TYPE_FLAT_RDWR		0x5ull /* flat buffer read/write */
    387 #define ATS_TYPE_SGL_RD			0x6ull /* sgl read only */
    388 #define ATS_TYPE_SGL_RDWR		0x7ull /* sgl read/write */
    389 
    390 #define ATS_SET_FLAGS(_struct, _field, _flags)				\
    391 	(((_flags) & 0xf) << (44 - (4 * (offsetof(_struct, _field) / 8))))
    392 
    393 #define ATS_GET_FLAGS(_ats, _byte_offs)					\
    394 	(((_ats)	  >> (44 - (4 * ((_byte_offs) / 8)))) & 0xf)
    395 
    396 /**
    397  * struct genwqe_ddcb_cmd - User parameter for generic DDCB commands
    398  *
    399  * On the way into the kernel the driver will read the whole data
    400  * structure. On the way out the driver will not copy the ASIV data
    401  * back to user-space.
    402  */
    403 struct genwqe_ddcb_cmd {
    404 	/* START of data copied to/from driver */
    405 	__u64 next_addr;		/* chaining genwqe_ddcb_cmd */
    406 	__u64 flags;			/* reserved */
    407 
    408 	__u8  acfunc;			/* accelerators functional unit */
    409 	__u8  cmd;			/* command to execute */
    410 	__u8  asiv_length;		/* used parameter length */
    411 	__u8  asv_length;		/* length of valid return values  */
    412 	__u16 cmdopts;			/* command options */
    413 	__u16 retc;			/* return code from processing    */
    414 
    415 	__u16 attn;			/* attention code from processing */
    416 	__u16 vcrc;			/* variant crc16 */
    417 	__u32 progress;			/* progress code from processing  */
    418 
    419 	__u64 deque_ts;			/* dequeue time stamp */
    420 	__u64 cmplt_ts;			/* completion time stamp */
    421 	__u64 disp_ts;			/* SW processing start */
    422 
    423 	/* move to end and avoid copy-back */
    424 	__u64 ddata_addr;		/* collect debug data */
    425 
    426 	/* command specific values */
    427 	__u8  asv[DDCB_ASV_LENGTH];
    428 
    429 	/* END of data copied from driver */
    430 	union {
    431 		struct {
    432 			__u64 ats;
    433 			__u8  asiv[DDCB_ASIV_LENGTH_ATS];
    434 		};
    435 		/* used for flash update to keep it backward compatible */
    436 		__u8 __asiv[DDCB_ASIV_LENGTH];
    437 	};
    438 	/* END of data copied to driver */
    439 };
    440 
    441 #define GENWQE_IOC_CODE	    0xa5
    442 
    443 /* Access functions */
    444 #define GENWQE_READ_REG64   _IOR(GENWQE_IOC_CODE, 30, struct genwqe_reg_io)
    445 #define GENWQE_WRITE_REG64  _IOW(GENWQE_IOC_CODE, 31, struct genwqe_reg_io)
    446 #define GENWQE_READ_REG32   _IOR(GENWQE_IOC_CODE, 32, struct genwqe_reg_io)
    447 #define GENWQE_WRITE_REG32  _IOW(GENWQE_IOC_CODE, 33, struct genwqe_reg_io)
    448 #define GENWQE_READ_REG16   _IOR(GENWQE_IOC_CODE, 34, struct genwqe_reg_io)
    449 #define GENWQE_WRITE_REG16  _IOW(GENWQE_IOC_CODE, 35, struct genwqe_reg_io)
    450 
    451 #define GENWQE_GET_CARD_STATE _IOR(GENWQE_IOC_CODE, 36,	enum genwqe_card_state)
    452 
    453 /**
    454  * struct genwqe_mem - Memory pinning/unpinning information
    455  * @addr:          virtual user space address
    456  * @size:          size of the area pin/dma-map/unmap
    457  * direction:      0: read/1: read and write
    458  *
    459  * Avoid pinning and unpinning of memory pages dynamically. Instead
    460  * the idea is to pin the whole buffer space required for DDCB
    461  * opertionas in advance. The driver will reuse this pinning and the
    462  * memory associated with it to setup the sglists for the DDCB
    463  * requests without the need to allocate and free memory or map and
    464  * unmap to get the DMA addresses.
    465  *
    466  * The inverse operation needs to be called after the pinning is not
    467  * needed anymore. The pinnings else the pinnings will get removed
    468  * after the device is closed. Note that pinnings will required
    469  * memory.
    470  */
    471 struct genwqe_mem {
    472 	__u64 addr;
    473 	__u64 size;
    474 	__u64 direction;
    475 	__u64 flags;
    476 };
    477 
    478 #define GENWQE_PIN_MEM	      _IOWR(GENWQE_IOC_CODE, 40, struct genwqe_mem)
    479 #define GENWQE_UNPIN_MEM      _IOWR(GENWQE_IOC_CODE, 41, struct genwqe_mem)
    480 
    481 /*
    482  * Generic synchronous DDCB execution interface.
    483  * Synchronously execute a DDCB.
    484  *
    485  * Return: 0 on success or negative error code.
    486  *         -EINVAL: Invalid parameters (ASIV_LEN, ASV_LEN, illegal fixups
    487  *                  no mappings found/could not create mappings
    488  *         -EFAULT: illegal addresses in fixups, purging failed
    489  *         -EBADMSG: enqueing failed, retc != DDCB_RETC_COMPLETE
    490  */
    491 #define GENWQE_EXECUTE_DDCB					\
    492 	_IOWR(GENWQE_IOC_CODE, 50, struct genwqe_ddcb_cmd)
    493 
    494 #define GENWQE_EXECUTE_RAW_DDCB					\
    495 	_IOWR(GENWQE_IOC_CODE, 51, struct genwqe_ddcb_cmd)
    496 
    497 /* Service Layer functions (PF only) */
    498 #define GENWQE_SLU_UPDATE  _IOWR(GENWQE_IOC_CODE, 80, struct genwqe_bitstream)
    499 #define GENWQE_SLU_READ	   _IOWR(GENWQE_IOC_CODE, 81, struct genwqe_bitstream)
    500 
    501 #endif	/* __GENWQE_CARD_H__ */
    502