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ATA_BUILD_RW_TF(9) libata Core Internals ATA_BUILD_RW_TF(9)

NAME

ata_build_rw_tf - Build ATA taskfile for given read/write request

SYNOPSIS

int ata_build_rw_tf(struct ata_taskfile * tf, struct ata_device * dev, u64 block, u32 n_block, unsigned int tf_flags, unsigned int tag, int class);

ARGUMENTS

struct ata_taskfile * tf
Target ATA taskfile

struct ata_device * dev

ATA device tf belongs to

u64 block

Block address

u32 n_block

Number of blocks

unsigned int tf_flags

RW/FUA etc...

unsigned int tag

tag

int class

IO priority class

DESCRIPTION

LOCKING: None.

Build ATA taskfile tf for read/write request described by block, n_block, tf_flags and tag on dev.

RETURN

0 on success, -ERANGE if the request is too large for dev, -EINVAL if the request is invalid.

AUTHOR

Jeff Garzik
Author.

COPYRIGHT

September 2017 Kernel Hackers Manual 4.12