Re: [PATCH v5 15/20] linux-user: Add support for FD<SETEMSGTRESH|SETMAXERRS|GETMAXERRS> ioctls

[Laurent Vivier]

Le 13/01/2020 à 21:34, Aleksandar Markovic a écrit :
> From: Aleksandar Markovic <address@hidden>
> 
> FDSETEMSGTRESH, FDSETMAXERRS, and FDGETMAXERRS ioctls are commands
> for controlling error reporting of a floppy drive.
> 
> FDSETEMSGTRESH's third agrument is a pointer to the structure:
> 
> struct floppy_max_errors {
>     unsigned int
>       abort,      /* number of errors to be reached before aborting */
>       read_track, /* maximal number of errors permitted to read an
>                    * entire track at once */
>       reset,      /* maximal number of errors before a reset is tried */
>       recal,      /* maximal number of errors before a recalibrate is
>                    * tried */
>       /*
>        * Threshold for reporting FDC errors to the console.
>        * Setting this to zero may flood your screen when using
>        * ultra cheap floppies ;-)
>        */
>       reporting;
> };
> 
> defined in Linux kernel header <linux/fd.h>.
> 
> Since all fields of the structure are of type 'unsigned int', there is
> no need to define "target_floppy_max_errors".
> 
> FDSETMAXERRS and FDGETMAXERRS ioctls do not use the third argument.
> 
> Signed-off-by: Aleksandar Markovic <address@hidden>
> ---
>  linux-user/ioctls.h        | 3 +++
>  linux-user/syscall_defs.h  | 3 +++
>  linux-user/syscall_types.h | 7 +++++++
>  3 files changed, 13 insertions(+)
> 
> diff --git a/linux-user/ioctls.h b/linux-user/ioctls.h
> index 66f8c4e..9e3ca90 100644
> --- a/linux-user/ioctls.h
> +++ b/linux-user/ioctls.h
> @@ -114,7 +114,10 @@
>  
>       IOCTL(FDMSGON, 0, TYPE_NULL)
>       IOCTL(FDMSGOFF, 0, TYPE_NULL)
> +     IOCTL(FDSETEMSGTRESH, 0, TYPE_NULL)
>       IOCTL(FDFLUSH, 0, TYPE_NULL)
> +     IOCTL(FDSETMAXERRS, IOC_W, MK_PTR(MK_STRUCT(STRUCT_floppy_max_errors)))
> +     IOCTL(FDGETMAXERRS, IOC_R, MK_PTR(MK_STRUCT(STRUCT_floppy_max_errors)))
>       IOCTL(FDRESET, 0, TYPE_NULL)
>       IOCTL(FDRAWCMD, 0, TYPE_NULL)
>       IOCTL(FDTWADDLE, 0, TYPE_NULL)
> diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h
> index 6b88030..efe3860 100644
> --- a/linux-user/syscall_defs.h
> +++ b/linux-user/syscall_defs.h
> @@ -899,7 +899,10 @@ struct target_pollfd {
>  
>  #define TARGET_FDMSGON        TARGET_IO(2, 0x45)
>  #define TARGET_FDMSGOFF       TARGET_IO(2, 0x46)
> +#define TARGET_FDSETEMSGTRESH TARGET_IO(2, 0x4a)
>  #define TARGET_FDFLUSH        TARGET_IO(2, 0x4b)
> +#define TARGET_FDSETMAXERRS  TARGET_IOW(2, 0x4c, struct floppy_max_errors)
> +#define TARGET_FDGETMAXERRS  TARGET_IOR(2, 0x0e, struct floppy_max_errors)
>  #define TARGET_FDRESET        TARGET_IO(2, 0x54)
>  #define TARGET_FDRAWCMD       TARGET_IO(2, 0x58)
>  #define TARGET_FDTWADDLE      TARGET_IO(2, 0x59)
> diff --git a/linux-user/syscall_types.h b/linux-user/syscall_types.h
> index 4e36983..e4e0429 100644
> --- a/linux-user/syscall_types.h
> +++ b/linux-user/syscall_types.h
> @@ -261,6 +261,13 @@ STRUCT(blkpg_ioctl_arg,
>         TYPE_INT, /* datalen */
>         TYPE_PTRVOID) /* data */
>  
> +STRUCT(floppy_max_errors,
> +       TYPE_INT, /* abort */
> +       TYPE_INT, /* read_track */
> +       TYPE_INT, /* reset */
> +       TYPE_INT, /* recal */
> +       TYPE_INT) /* reporting */
> +
>  #if defined(CONFIG_USBFS)
>  /* usb device ioctls */
>  STRUCT(usbdevfs_ctrltransfer,
> 

Reviewed-by: Laurent Vivier <address@hidden>