Merge tag 'char-misc-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver patches from Greg KH: "Here's the big char/misc driver patches for 3.14-rc1. Lots of little things, and a new "big" driver, genwqe. Full details are in the shortlog" * tag 'char-misc-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (90 commits) mei: limit the number of consecutive resets mei: revamp mei reset state machine drivers/char: don't use module_init in non-modular ttyprintk.c VMCI: fix error handling path when registering guest driver extcon: gpio: Add power resume support Documentation: HOWTO: Updates on subsystem trees, patchwork, -next (vs. -mm) in ko_KR Documentation: HOWTO: update for 2.6.x -> 3.x versioning in ko_KR Documentation: HOWTO: update stable address in ko_KR Documentation: HOWTO: update LXR web link in ko_KR char: nwbutton: open-code interruptible_sleep_on mei: fix syntax in comments and debug output mei: nfc: mei_nfc_free has to be called under lock mei: use hbm idle state to prevent spurious resets mei: do not run reset flow from the interrupt thread misc: genwqe: fix return value check in genwqe_device_create() GenWQE: Fix warnings for sparc GenWQE: Fix compile problems for Alpha Documentation/misc-devices/mei/mei-amt-version.c: remove unneeded call of mei_deinit() GenWQE: Rework return code for flash-update ioctl sgi-xp: open-code interruptible_sleep_on_timeout ...
This commit is contained in:
Linus Torvalds
500
include/uapi/linux/genwqe/genwqe_card.h
Normal file
500
include/uapi/linux/genwqe/genwqe_card.h
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@@ -0,0 +1,500 @@
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#ifndef __GENWQE_CARD_H__
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#define __GENWQE_CARD_H__
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/**
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* IBM Accelerator Family 'GenWQE'
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*
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* (C) Copyright IBM Corp. 2013
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*
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* Author: Frank Haverkamp <haver@linux.vnet.ibm.com>
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* Author: Joerg-Stephan Vogt <jsvogt@de.ibm.com>
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* Author: Michael Jung <mijung@de.ibm.com>
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* Author: Michael Ruettger <michael@ibmra.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License (version 2 only)
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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/*
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* User-space API for the GenWQE card. For debugging and test purposes
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* the register addresses are included here too.
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*/
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#include <linux/types.h>
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#include <linux/ioctl.h>
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/* Basename of sysfs, debugfs and /dev interfaces */
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#define GENWQE_DEVNAME "genwqe"
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#define GENWQE_TYPE_ALTERA_230 0x00 /* GenWQE4 Stratix-IV-230 */
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#define GENWQE_TYPE_ALTERA_530 0x01 /* GenWQE4 Stratix-IV-530 */
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#define GENWQE_TYPE_ALTERA_A4 0x02 /* GenWQE5 A4 Stratix-V-A4 */
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#define GENWQE_TYPE_ALTERA_A7 0x03 /* GenWQE5 A7 Stratix-V-A7 */
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/* MMIO Unit offsets: Each UnitID occupies a defined address range */
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#define GENWQE_UID_OFFS(uid) ((uid) << 24)
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#define GENWQE_SLU_OFFS GENWQE_UID_OFFS(0)
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#define GENWQE_HSU_OFFS GENWQE_UID_OFFS(1)
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#define GENWQE_APP_OFFS GENWQE_UID_OFFS(2)
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#define GENWQE_MAX_UNITS 3
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/* Common offsets per UnitID */
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#define IO_EXTENDED_ERROR_POINTER 0x00000048
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#define IO_ERROR_INJECT_SELECTOR 0x00000060
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#define IO_EXTENDED_DIAG_SELECTOR 0x00000070
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#define IO_EXTENDED_DIAG_READ_MBX 0x00000078
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#define IO_EXTENDED_DIAG_MAP(ring) (0x00000500 | ((ring) << 3))
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#define GENWQE_EXTENDED_DIAG_SELECTOR(ring, trace) (((ring) << 8) | (trace))
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/* UnitID 0: Service Layer Unit (SLU) */
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/* SLU: Unit Configuration Register */
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#define IO_SLU_UNITCFG 0x00000000
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#define IO_SLU_UNITCFG_TYPE_MASK 0x000000000ff00000 /* 27:20 */
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/* SLU: Fault Isolation Register (FIR) (ac_slu_fir) */
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#define IO_SLU_FIR 0x00000008 /* read only, wr direct */
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#define IO_SLU_FIR_CLR 0x00000010 /* read and clear */
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/* SLU: First Error Capture Register (FEC/WOF) */
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#define IO_SLU_FEC 0x00000018
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#define IO_SLU_ERR_ACT_MASK 0x00000020
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#define IO_SLU_ERR_ATTN_MASK 0x00000028
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#define IO_SLU_FIRX1_ACT_MASK 0x00000030
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#define IO_SLU_FIRX0_ACT_MASK 0x00000038
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#define IO_SLU_SEC_LEM_DEBUG_OVR 0x00000040
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#define IO_SLU_EXTENDED_ERR_PTR 0x00000048
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#define IO_SLU_COMMON_CONFIG 0x00000060
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#define IO_SLU_FLASH_FIR 0x00000108
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#define IO_SLU_SLC_FIR 0x00000110
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#define IO_SLU_RIU_TRAP 0x00000280
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#define IO_SLU_FLASH_FEC 0x00000308
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#define IO_SLU_SLC_FEC 0x00000310
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/*
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* The Virtual Function's Access is from offset 0x00010000
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* The Physical Function's Access is from offset 0x00050000
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* Single Shared Registers exists only at offset 0x00060000
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*
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* SLC: Queue Virtual Window Window for accessing into a specific VF
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* queue. When accessing the 0x10000 space using the 0x50000 address
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* segment, the value indicated here is used to specify which VF
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* register is decoded. This register, and the 0x50000 register space
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* can only be accessed by the PF. Example, if this register is set to
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* 0x2, then a read from 0x50000 is the same as a read from 0x10000
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* from VF=2.
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*/
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/* SLC: Queue Segment */
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#define IO_SLC_QUEUE_SEGMENT 0x00010000
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#define IO_SLC_VF_QUEUE_SEGMENT 0x00050000
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/* SLC: Queue Offset */
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#define IO_SLC_QUEUE_OFFSET 0x00010008
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#define IO_SLC_VF_QUEUE_OFFSET 0x00050008
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/* SLC: Queue Configuration */
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#define IO_SLC_QUEUE_CONFIG 0x00010010
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#define IO_SLC_VF_QUEUE_CONFIG 0x00050010
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/* SLC: Job Timout/Only accessible for the PF */
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#define IO_SLC_APPJOB_TIMEOUT 0x00010018
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#define IO_SLC_VF_APPJOB_TIMEOUT 0x00050018
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#define TIMEOUT_250MS 0x0000000f
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#define HEARTBEAT_DISABLE 0x0000ff00
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/* SLC: Queue InitSequence Register */
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#define IO_SLC_QUEUE_INITSQN 0x00010020
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#define IO_SLC_VF_QUEUE_INITSQN 0x00050020
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/* SLC: Queue Wrap */
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#define IO_SLC_QUEUE_WRAP 0x00010028
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#define IO_SLC_VF_QUEUE_WRAP 0x00050028
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/* SLC: Queue Status */
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#define IO_SLC_QUEUE_STATUS 0x00010100
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#define IO_SLC_VF_QUEUE_STATUS 0x00050100
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/* SLC: Queue Working Time */
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#define IO_SLC_QUEUE_WTIME 0x00010030
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#define IO_SLC_VF_QUEUE_WTIME 0x00050030
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/* SLC: Queue Error Counts */
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#define IO_SLC_QUEUE_ERRCNTS 0x00010038
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#define IO_SLC_VF_QUEUE_ERRCNTS 0x00050038
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/* SLC: Queue Loast Response Word */
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#define IO_SLC_QUEUE_LRW 0x00010040
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#define IO_SLC_VF_QUEUE_LRW 0x00050040
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/* SLC: Freerunning Timer */
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#define IO_SLC_FREE_RUNNING_TIMER 0x00010108
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#define IO_SLC_VF_FREE_RUNNING_TIMER 0x00050108
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/* SLC: Queue Virtual Access Region */
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#define IO_PF_SLC_VIRTUAL_REGION 0x00050000
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/* SLC: Queue Virtual Window */
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#define IO_PF_SLC_VIRTUAL_WINDOW 0x00060000
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/* SLC: DDCB Application Job Pending [n] (n=0:63) */
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#define IO_PF_SLC_JOBPEND(n) (0x00061000 + 8*(n))
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#define IO_SLC_JOBPEND(n) IO_PF_SLC_JOBPEND(n)
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/* SLC: Parser Trap RAM [n] (n=0:31) */
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#define IO_SLU_SLC_PARSE_TRAP(n) (0x00011000 + 8*(n))
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/* SLC: Dispatcher Trap RAM [n] (n=0:31) */
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#define IO_SLU_SLC_DISP_TRAP(n) (0x00011200 + 8*(n))
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/* Global Fault Isolation Register (GFIR) */
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#define IO_SLC_CFGREG_GFIR 0x00020000
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#define GFIR_ERR_TRIGGER 0x0000ffff
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/* SLU: Soft Reset Register */
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#define IO_SLC_CFGREG_SOFTRESET 0x00020018
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/* SLU: Misc Debug Register */
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#define IO_SLC_MISC_DEBUG 0x00020060
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#define IO_SLC_MISC_DEBUG_CLR 0x00020068
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#define IO_SLC_MISC_DEBUG_SET 0x00020070
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/* Temperature Sensor Reading */
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#define IO_SLU_TEMPERATURE_SENSOR 0x00030000
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#define IO_SLU_TEMPERATURE_CONFIG 0x00030008
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/* Voltage Margining Control */
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#define IO_SLU_VOLTAGE_CONTROL 0x00030080
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#define IO_SLU_VOLTAGE_NOMINAL 0x00000000
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#define IO_SLU_VOLTAGE_DOWN5 0x00000006
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#define IO_SLU_VOLTAGE_UP5 0x00000007
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/* Direct LED Control Register */
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#define IO_SLU_LEDCONTROL 0x00030100
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/* SLU: Flashbus Direct Access -A5 */
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#define IO_SLU_FLASH_DIRECTACCESS 0x00040010
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/* SLU: Flashbus Direct Access2 -A5 */
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#define IO_SLU_FLASH_DIRECTACCESS2 0x00040020
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/* SLU: Flashbus Command Interface -A5 */
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#define IO_SLU_FLASH_CMDINTF 0x00040030
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/* SLU: BitStream Loaded */
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#define IO_SLU_BITSTREAM 0x00040040
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/* This Register has a switch which will change the CAs to UR */
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#define IO_HSU_ERR_BEHAVIOR 0x01001010
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#define IO_SLC2_SQB_TRAP 0x00062000
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#define IO_SLC2_QUEUE_MANAGER_TRAP 0x00062008
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#define IO_SLC2_FLS_MASTER_TRAP 0x00062010
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/* UnitID 1: HSU Registers */
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#define IO_HSU_UNITCFG 0x01000000
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#define IO_HSU_FIR 0x01000008
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#define IO_HSU_FIR_CLR 0x01000010
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#define IO_HSU_FEC 0x01000018
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#define IO_HSU_ERR_ACT_MASK 0x01000020
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#define IO_HSU_ERR_ATTN_MASK 0x01000028
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#define IO_HSU_FIRX1_ACT_MASK 0x01000030
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#define IO_HSU_FIRX0_ACT_MASK 0x01000038
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#define IO_HSU_SEC_LEM_DEBUG_OVR 0x01000040
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#define IO_HSU_EXTENDED_ERR_PTR 0x01000048
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#define IO_HSU_COMMON_CONFIG 0x01000060
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/* UnitID 2: Application Unit (APP) */
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#define IO_APP_UNITCFG 0x02000000
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#define IO_APP_FIR 0x02000008
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#define IO_APP_FIR_CLR 0x02000010
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#define IO_APP_FEC 0x02000018
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#define IO_APP_ERR_ACT_MASK 0x02000020
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#define IO_APP_ERR_ATTN_MASK 0x02000028
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#define IO_APP_FIRX1_ACT_MASK 0x02000030
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#define IO_APP_FIRX0_ACT_MASK 0x02000038
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#define IO_APP_SEC_LEM_DEBUG_OVR 0x02000040
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#define IO_APP_EXTENDED_ERR_PTR 0x02000048
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#define IO_APP_COMMON_CONFIG 0x02000060
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#define IO_APP_DEBUG_REG_01 0x02010000
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#define IO_APP_DEBUG_REG_02 0x02010008
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#define IO_APP_DEBUG_REG_03 0x02010010
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#define IO_APP_DEBUG_REG_04 0x02010018
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#define IO_APP_DEBUG_REG_05 0x02010020
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#define IO_APP_DEBUG_REG_06 0x02010028
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#define IO_APP_DEBUG_REG_07 0x02010030
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#define IO_APP_DEBUG_REG_08 0x02010038
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#define IO_APP_DEBUG_REG_09 0x02010040
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#define IO_APP_DEBUG_REG_10 0x02010048
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#define IO_APP_DEBUG_REG_11 0x02010050
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#define IO_APP_DEBUG_REG_12 0x02010058
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#define IO_APP_DEBUG_REG_13 0x02010060
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#define IO_APP_DEBUG_REG_14 0x02010068
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#define IO_APP_DEBUG_REG_15 0x02010070
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#define IO_APP_DEBUG_REG_16 0x02010078
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#define IO_APP_DEBUG_REG_17 0x02010080
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#define IO_APP_DEBUG_REG_18 0x02010088
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/* Read/write from/to registers */
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struct genwqe_reg_io {
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__u64 num; /* register offset/address */
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__u64 val64;
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};
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/*
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* All registers of our card will return values not equal this values.
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* If we see IO_ILLEGAL_VALUE on any of our MMIO register reads, the
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* card can be considered as unusable. It will need recovery.
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*/
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#define IO_ILLEGAL_VALUE 0xffffffffffffffffull
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/*
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* Generic DDCB execution interface.
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*
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* This interface is a first prototype resulting from discussions we
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* had with other teams which wanted to use the Genwqe card. It allows
|
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* to issue a DDCB request in a generic way. The request will block
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* until it finishes or time out with error.
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*
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* Some DDCBs require DMA addresses to be specified in the ASIV
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* block. The interface provies the capability to let the kernel
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* driver know where those addresses are by specifying the ATS field,
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* such that it can replace the user-space addresses with appropriate
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* DMA addresses or DMA addresses of a scatter gather list which is
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* dynamically created.
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*
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* Our hardware will refuse DDCB execution if the ATS field is not as
|
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* expected. That means the DDCB execution engine in the chip knows
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* where it expects DMA addresses within the ASIV part of the DDCB and
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* will check that against the ATS field definition. Any invalid or
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* unknown ATS content will lead to DDCB refusal.
|
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*/
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/* Genwqe chip Units */
|
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#define DDCB_ACFUNC_SLU 0x00 /* chip service layer unit */
|
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#define DDCB_ACFUNC_APP 0x01 /* chip application */
|
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|
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/* DDCB return codes (RETC) */
|
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#define DDCB_RETC_IDLE 0x0000 /* Unexecuted/DDCB created */
|
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#define DDCB_RETC_PENDING 0x0101 /* Pending Execution */
|
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#define DDCB_RETC_COMPLETE 0x0102 /* Cmd complete. No error */
|
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#define DDCB_RETC_FAULT 0x0104 /* App Err, recoverable */
|
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#define DDCB_RETC_ERROR 0x0108 /* App Err, non-recoverable */
|
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#define DDCB_RETC_FORCED_ERROR 0x01ff /* overwritten by driver */
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#define DDCB_RETC_UNEXEC 0x0110 /* Unexe/Removed from queue */
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#define DDCB_RETC_TERM 0x0120 /* Terminated */
|
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#define DDCB_RETC_RES0 0x0140 /* Reserved */
|
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#define DDCB_RETC_RES1 0x0180 /* Reserved */
|
||||
|
||||
/* DDCB Command Options (CMDOPT) */
|
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#define DDCB_OPT_ECHO_FORCE_NO 0x0000 /* ECHO DDCB */
|
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#define DDCB_OPT_ECHO_FORCE_102 0x0001 /* force return code */
|
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#define DDCB_OPT_ECHO_FORCE_104 0x0002
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#define DDCB_OPT_ECHO_FORCE_108 0x0003
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#define DDCB_OPT_ECHO_FORCE_110 0x0004 /* only on PF ! */
|
||||
#define DDCB_OPT_ECHO_FORCE_120 0x0005
|
||||
#define DDCB_OPT_ECHO_FORCE_140 0x0006
|
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#define DDCB_OPT_ECHO_FORCE_180 0x0007
|
||||
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#define DDCB_OPT_ECHO_COPY_NONE (0 << 5)
|
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#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__ */
|
||||
Reference in New Issue
Block a user