On Wed, 2012-05-16 at 23:13 -0700, Nicholas A. Bellinger wrote:
> On Thu, 2012-05-17 at 11:14 +0800, mengcong wrote:
> > The cdrecord uses ATA_PASS_THROUGH_16 command while burning CDs
> > with a SATA CD-ROM. This patch adds support to it so that PSCSI
> > CD-ROM passthrough works with the cdrecord.
> >
> > Signed-off-by: Cong Meng <mc@xxxxxxxxxxxxxxxxxx>
> > ---
> > drivers/target/target_core_transport.c | 30 ++++++++++++++++++++++++++++++
> > 1 files changed, 30 insertions(+), 0 deletions(-)
> >
>
> Ok, I've added the extra !passthrough check to enforce pSCSI backends
> only usage + /* ... */ style comments changes mentioned as feedback you
> missed in the last mail. (That's OK this time, but please don't get
> into the habit of ignoring patch feedback..)
Sorry to the ignoreance of the feedback. My client gets new mail with
problem sometimes.
About the passthrough check, I explains in my last mail.
Thanks.
mc.
>
> So committed into lio-core.git, and queuing shortly into
> target-pending/for-next to be picked up for tomorrow's linux-next build.
>
> Thanks for your patch MC!
>
> --nab
>
> > diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
> > index 2d75c29..25e0fc0 100644
> > --- a/drivers/target/target_core_transport.c
> > +++ b/drivers/target/target_core_transport.c
> > @@ -2926,6 +2926,36 @@ static int transport_generic_cmd_sequencer(
> > size = (cdb[7] << 8) | cdb[8];
> > cmd->se_cmd_flags |= SCF_SCSI_CONTROL_SG_IO_CDB;
> > break;
> > + case ATA_16:
> > + // T_LENGTH
> > + switch (cdb[2] & 0x3) {
> > + case 0x0:
> > + sectors = 0;
> > + break;
> > + case 0x1:
> > + sectors = (((cdb[1] & 0x1) ? cdb[3] : 0) << 8) | cdb[4];
> > + break;
> > + case 0x2:
> > + sectors = (((cdb[1] & 0x1) ? cdb[5] : 0) << 8) | cdb[6];
> > + break;
> > + case 0x3:
> > + pr_err("T_LENGTH=0x3 not supported\n");
> > + goto out_invalid_cdb_field;
> > + break;
> > + }
> > +
> > + // BYTE_BLOCK
> > + if (cdb[2] & 0x4) {
> > + // BLOCK
> > + // T_TYPE: 512 or sector
> > + size = sectors * ((cdb[2] & 0x10) ?
> > + dev->se_sub_dev->se_dev_attrib.block_size : 512);
> > + } else {
> > + // BYTE
> > + size = sectors;
> > + }
> > + cmd->se_cmd_flags |= SCF_SCSI_CONTROL_SG_IO_CDB;
> > + break;
> > default:
> > pr_warn("TARGET_CORE[%s]: Unsupported SCSI Opcode"
> > " 0x%02x, sending CHECK_CONDITION.\n",
>
>
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