diff options
Diffstat (limited to 'testing/uapi_sg.h')
| -rw-r--r-- | testing/uapi_sg.h | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/testing/uapi_sg.h b/testing/uapi_sg.h index fa7f2ea3..348918f9 100644 --- a/testing/uapi_sg.h +++ b/testing/uapi_sg.h @@ -14,7 +14,7 @@ * Later extensions (versions 2, 3 and 4) to driver: * Copyright (C) 1998 - 2018 Douglas Gilbert * - * Version 4.0.11 (20190502) + * Version 4.0.12 (20190521) * This version is for Linux 4 and 5 series kernels. * * Documentation @@ -31,7 +31,11 @@ #include <linux/types.h> #include <linux/major.h> -/* bsg.h contains the sg v4 user space interface structure (sg_io_v4). */ +/* + * bsg.h contains the sg v4 user space interface structure (sg_io_v4). + * That structure is also used as the controlling object when multiple + * requests are issued with one ioctl() call. + */ #include <linux/bsg.h> /* @@ -111,8 +115,8 @@ typedef struct sg_io_hdr { #define SGV4_FLAG_Q_AT_HEAD SG_FLAG_Q_AT_HEAD #define SGV4_FLAG_COMPLETE_B4 0x100 #define SGV4_FLAG_SIG_ON_OTHER 0x200 -#define SGV4_FLAG_IMMED 0x400 /* for polling with SG_IOR, ignored in SG_IOS */ -#define SGV4_FLAG_STOP_IF 0x800 /* Stops sync mrq if error or warning */ +#define SGV4_FLAG_IMMED 0x400 /* for polling with SG_IOR, ignored in SG_IOS */ +#define SGV4_FLAG_STOP_IF 0x800 /* Stops sync mrq if error or warning */ #define SGV4_FLAG_DEV_SCOPE 0x1000 /* permit SG_IOABORT to have wider scope */ #define SGV4_FLAG_SHARE 0x2000 /* share IO buffer; needs SG_SEIM_SHARE_FD */ #define SGV4_FLAG_DO_ON_OTHER 0x4000 /* available on either of shared pair */ @@ -460,7 +464,6 @@ struct sg_header { /* Gives some v3 identifying info to driver, receives associated response */ #define SG_IORECEIVE_V3 _IOWR(SG_IOCTL_MAGIC_NUM, 0x46, struct sg_io_hdr) - /* command queuing is always on when the v3 or v4 interface is used */ #define SG_DEF_COMMAND_Q 0 |