On Mon, 31 Jan 2011 17:14:18 -0500 Pete Wyckoff <pw@xxxxxxxx> wrote: > The XDREADWRITE_10 command is also bidi. This might be easier > to hack into the disk target if it is not already there. See > the implementation in linux scsi_debug.c if it is helpful. I've attached a patch to add fake XDREADWRITE_10 support. You can use my makeshift bsg tool to send a XDREADWRITE_10 command: http://git.kernel.org/?p=linux/kernel/git/tomo/sgv4-tools.git;a=summary vine:/home/fujita# ./sgv4-tools/sgv4_xdwriteread /sys/class/bsg/2\:0\:0\:1 driver:0, transport:0, device:0, din_resid: 0, dout_resid: 0 diff --git a/usr/sbc.c b/usr/sbc.c index d73306b..6f59dc1 100644 --- a/usr/sbc.c +++ b/usr/sbc.c @@ -268,6 +268,11 @@ sense: return SAM_STAT_CHECK_CONDITION; } +static int sbc_xdwriteread(int host_no, struct scsi_cmd *cmd) +{ + return SAM_STAT_GOOD; +} + static int sbc_lu_init(struct scsi_lu *lu) { uint64_t size; @@ -403,7 +408,7 @@ static struct device_type_template sbc_template = { {spc_illegal_op,}, {spc_illegal_op,}, {spc_illegal_op,}, - {spc_illegal_op,}, + {sbc_xdwriteread,}, {spc_illegal_op,}, {sbc_mode_select, NULL, PR_WE_FA|PR_EA_FA|PR_WE_FN|PR_EA_FN}, {spc_illegal_op,}, diff --git a/usr/scsi.h b/usr/scsi.h index f4d8c11..b4724f0 100644 --- a/usr/scsi.h +++ b/usr/scsi.h @@ -63,6 +63,7 @@ #define READ_TOC 0x43 #define LOG_SELECT 0x4c #define LOG_SENSE 0x4d +#define XDWRITEREAD_10 0x53 #define MODE_SELECT_10 0x55 #define RESERVE_10 0x56 #define RELEASE_10 0x57 -- 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
