Hello Can I export real DVD drive/device using tgt? Did something change since: http://lists.wpkg.org/pipermail/stgt/2008-September/002117.html ? I tried to use passthrough device type: #v+ $ lsscsi -g | grep sr0 [3:0:0:0] cd/dvd PBDS DVD+-RW DS-8W1P BD1B /dev/sr0 /dev/sg2 $ tgtd -d 9 $ tgtadm --lld iscsi --mode target --op new --tid 1 -T iqn.2001-04.mobile:dvd $ tgtadm --lld iscsi --op new --mode logicalunit --tid 1 --lun 1 --bstype=sg --device-type=pt -b /dev/sg2 $ tgtadm --lld iscsi --op bind --mode target --tid 1 -I ALL v- But it does not work. `tgt-admin --show` presents pretty exported targets but logs shows: #v+ # Jul 19 16:05:37 mobile tgtd: semkey 0x6101f834 already exists Jul 19 16:05:37 mobile tgtd: semkey 0x6101f834 Jul 19 16:05:37 mobile tgtd: tgtd daemon started, pid:8201 Jul 19 16:05:37 mobile tgtd: tgtd logger started, pid:8202 debug:9 Jul 19 16:05:38 mobile tgtd: work_timer_start(146) use timer_fd based scheduler Jul 19 16:05:38 mobile tgtd: work_timer_start(181) started, timeout: 500 msec Jul 19 16:05:38 mobile tgtd: bs_init(312) use signalfd notification Jul 19 16:05:59 mobile tgtd: tgt_mgmt(393) 149 0 1 0 1 0 ffffffffffffffff targetname=iqn.2001-04.mobile:dvd 8201 Jul 19 16:05:59 mobile tgtd: tgt_device_create(474) 1 0 Jul 19 16:05:59 mobile tgtd: tgt_device_create(648) Add a logical unit 0 to the target 1 Jul 19 16:05:59 mobile tgtd: tgt_target_create(1919) Succeed to create a new target 1 Jul 19 16:06:03 mobile tgtd: tgt_mgmt(393) 139 0 2 0 1 0 1 path=/dev/sg2,bstype=sg 8201 Jul 19 16:06:03 mobile tgtd: tgt_device_create(474) 1 1 Jul 19 16:06:03 mobile tgtd: tgt_device_create(648) Add a logical unit 1 to the target 1 Jul 19 16:06:05 mobile tgtd: tgt_mgmt(393) 137 0 1 3 1 0 ffffffffffffffff initiator-address=ALL 8201 Jul 19 16:06:37 mobile tgtd: accept_connection(99) 4 Jul 19 16:06:37 mobile tgtd: cmnd_exec_login(716) Login request (operational negotiation): 0 Jul 19 16:06:37 mobile tgtd: login_start(554) exp_cmd_sn: 0,0 Jul 19 16:06:37 mobile tgtd: it_nexus_create(273) 1 1 0 Jul 19 16:06:37 mobile tgtd: session_create(135) session_create: 0x10000013d0200 Jul 19 16:06:37 mobile tgtd: conn_take_fd(213) 0 1 0 10000013d0200 Jul 19 16:06:37 mobile tgtd: iscsi_scsi_cmd_rx_start(1607) 1 12 0 0 36 1 1 Jul 19 16:06:37 mobile tgtd: iscsi_task_queue(1552) 0 0 1 Jul 19 16:06:37 mobile tgtd: target_cmd_queue(935) 0x83e3680 12 0 Jul 19 16:06:37 mobile tgtd: target_cmd_perform(966) 0x83e3680 12 0 1 Jul 19 16:06:37 mobile tgtd: spc_inquiry(163) 0 0 Jul 19 16:06:37 mobile tgtd: target_cmd_perform(977) 1 12 (nil) 0x83e4000 0 0 36 0 0 Jul 19 16:06:37 mobile tgtd: iscsi_scsi_cmd_done(1225) shrunk too big device read len 66 > 36 Jul 19 16:06:37 mobile tgtd: iscsi_task_tx_start(1898) found a task 1 36 0 0 Jul 19 16:06:37 mobile tgtd: iscsi_data_rsp_build(1090) 36 36 36 81921 Jul 19 16:06:37 mobile tgtd: __cmd_done(1066) (nil) 0x83e4000 0 36 0 Jul 19 16:06:37 mobile tgtd: iscsi_task_tx_start(1923) no more data Jul 19 16:06:37 mobile tgtd: iscsi_scsi_cmd_rx_start(1607) 1 12 0 0 68 1 2 Jul 19 16:06:37 mobile tgtd: iscsi_task_queue(1552) 1 1 1 Jul 19 16:06:37 mobile tgtd: target_cmd_queue(935) 0x83e3680 12 0 Jul 19 16:06:37 mobile tgtd: target_cmd_perform(966) 0x83e3680 12 0 1 Jul 19 16:06:37 mobile tgtd: spc_inquiry(163) 0 0 Jul 19 16:06:37 mobile tgtd: target_cmd_perform(977) 2 12 (nil) 0x83e4000 0 0 66 0 0 Jul 19 16:06:37 mobile tgtd: iscsi_task_tx_start(1898) found a task 2 66 0 0 Jul 19 16:06:37 mobile tgtd: iscsi_data_rsp_build(1090) 66 66 66 81922 Jul 19 16:06:37 mobile tgtd: __cmd_done(1066) (nil) 0x83e4000 0 66 0 Jul 19 16:06:37 mobile tgtd: iscsi_task_tx_start(1923) no more data Jul 19 16:06:37 mobile tgtd: iscsi_scsi_cmd_rx_start(1607) 1 a0 0 0 4096 1 3 Jul 19 16:06:37 mobile tgtd: iscsi_task_queue(1552) 2 2 1 Jul 19 16:06:37 mobile tgtd: target_cmd_queue(935) 0x83e3680 a0 0 Jul 19 16:06:37 mobile tgtd: target_cmd_perform(966) 0x83e3680 a0 0 1 Jul 19 16:06:37 mobile tgtd: target_cmd_perform(977) 3 a0 (nil) 0x83e4000 0 0 4096 0 0 Jul 19 16:06:37 mobile tgtd: iscsi_task_tx_start(1898) found a task 3 4096 0 0 Jul 19 16:06:37 mobile tgtd: iscsi_data_rsp_build(1090) 24 4096 24 81923 Jul 19 16:06:37 mobile tgtd: __cmd_done(1066) (nil) 0x83e4000 0 4096 0 Jul 19 16:06:37 mobile tgtd: iscsi_task_tx_start(1923) no more data (...) last few lines are repeated infinitely ... $v- On client side `iscsi_discovery target_IP -l' succesfully discovers exported target and creates /dev/sdc (!?) device but nothing can be done with it. `head -1 /dev/sdc` or `mount /dev/sdc /mnt/dvd` make D-state process fully utilizing CPU :/. -- regards Pawel Suwinski -- 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
