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SCSI_DMA_MAP(9) SCSI mid layer SCSI_DMA_MAP(9)

NAME

scsi_dma_map - perform DMA mapping against command's sg lists

SYNOPSIS

int scsi_dma_map(struct scsi_cmnd * cmd);

ARGUMENTS

cmd
scsi command

DESCRIPTION

Returns the number of sg lists actually used, zero if the sg lists is NULL, or -ENOMEM if the mapping failed.

AUTHORS

James Bottomley <James.Bottomley@hansenpartnership.com>
Author.

Rob Landley <rob@landley.net>

Author.

COPYRIGHT

April 2019 Kernel Hackers Manual 4.9.