On Sat, 12 Oct 2013 07:38:59 -0700 Ronnie Sahlberg <ronniesahlberg@xxxxxxxxx> wrote: > While RDWR supports all SBC opcodes that TGTD implement SHEEPDOG > only supports a subset and lacks the following opcodes: > WRITE_VERIFY10/12/16 VERIFY10/12/16 PREFETCH10/16 > WRITE_SAME10/16 UNMAP and ORWRITE > > This allows backends to specify which opcodes it is prepared to process > and which commands should fail with invalid op code > and allows SHEEPDOG backed LUNs to respond with INVALID_OP_CODE > correctly. > > This is most useful for block devices where we have several different backens > and where some backends only support a subset of the commands > > Signed-off-by: Ronnie Sahlberg <ronniesahlberg@xxxxxxxxx> > --- > usr/bs.c | 8 ++++++++ > usr/bs_rdwr.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++ > usr/bs_sheepdog.c | 38 ++++++++++++++++++++++++++++++++++++++ > usr/scsi.c | 6 ++++++ > usr/tgtd.h | 1 + > 5 files changed, 104 insertions(+), 0 deletions(-) Why backend store's bs_cmd_submit cannot return a proper error and sbr_rc returns that error to an initiator? -- To unsubscribe from this list: send the line "unsubscribe stgt" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
