Hi, I am trying to test the TCM/LIO ib_srpt target driver from master branch of lio-core-2.6 In the past, using branch tcm_ib_srpt-38, I have successfully initialized the srp target and initiator with the "manual steps" in: http://linux-iscsi.org/wiki/SCSI_RDMA_Protocol#Manual_steps However with master, the manual steps fail at: root@server1:~# mkdir -p /sys/kernel/config/target/srpt/mlx4_0/mlx4_0/lun/lun_0 mkdir: cannot create directory `/sys/kernel/config/target/srpt/mlx4_0': Invalid argument Has the recommended ib_srpt initialization procedure changed recently? The target and initiator are the same machine in this test. This is on Mellanox QDR (mlx4 backend driver) When I tested the tcm_ib_srpt-38 branch of lio-core-2.6, the same manual steps worked fine: [ 3725.279283] <<<<<<<<<<<<<<<<<<<<<< BEGIN FABRIC API >>>>>>>>>>>>>>>>>>>>>> [ 3725.279336] Initialized struct target_fabric_configfs: ffff88061a3f5800 for srpt [ 3725.279416] <<<<<<<<<<<<<<<<<<<<<< END FABRIC API >>>>>>>>>>>>>>>>>>>>>> [ 3725.279539] TARGET_CORE[srpt]: Allocated Normal struct se_portal_group for endpoint: 0x2c903000f5e7a, Portal Tag: 1 [ 3725.282984] Target_Core_ConfigFS: REGISTER -> group: ffffffffa0273380 name: srpt [ 3725.283071] Target_Core_ConfigFS: REGISTER -> Located fabric: srpt [ 3725.284622] Target_Core_ConfigFS: REGISTER tfc_wwn_cit -> ffff88061a3f5b08 [ 3725.284677] Target_Core_ConfigFS: REGISTER -> Allocated Fabric: srpt [ 3725.284727] Target_Core_ConfigFS: REGISTER -> Set tf->tf_fabric for srpt [ 3725.286314] iblock/srpt: Adding to default ALUA Target Port Group: alua/default_tg_pt_gp [ 3725.286403] srpt_TPG[1]_LUN[0] - Activated srpt Logical Unit from CORE HBA: 1 [ 3725.377681] srpt_TPG[1] - Added ACL with TCQ Depth: 1 for srpt Initiator Node: 0x0002c903000f5e7b [ 3725.379182] srpt_TPG[1]_LUN[0->0] - Added RW ACL for InitiatorNode: 0x0002c903000f5e7b And the scsi device seemed to appear correctly on the initiator side: [ 3758.027108] scsi host1: ib_srp: new target: id_ext 0002c903000f5e7a ioc_guid 0002c903000f5e7a pkey ffff service_id 0002c903000f5e7a dgid fe80:0000:0000:0000:0002:c903:000f:5e7b [ 3758.027959] Received SRP_LOGIN_REQ with i_port_id 0x0:0x2c903000f5e7b, t_port_id 0x2c903000f5e7a:0x2c903000f5e7a and it_iu_len 260 on port 1 (guid=0xfe80000000000000:0x2c903000f5e7b) [ 3758.031561] Session : kernel thread ib_srpt_compl (PID 2396) started [ 3758.031631] TARGET_CORE[srpt]: Registered fabric_sess_ptr: ffff88021aaad000 [ 3758.031898] scsi1 : SRP.T10:0002C903000F5E7A [ 3758.032317] scsi 1:0:0:0: Direct-Access LIO-ORG IBLOCK 4.0 PQ: 0 ANSI: 5 [ 3758.032751] sd 1:0:0:0: [sdc] 9762242560 512-byte logical blocks: (4.99 TB/4.54 TiB) [ 3758.033193] sd 1:0:0:0: [sdc] Write Protect is off [ 3758.033245] sd 1:0:0:0: [sdc] Mode Sense: 2f 00 00 00 [ 3758.033389] sd 1:0:0:0: [sdc] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA [ 3768.046220] sdc: unknown partition table [ 3768.046823] sd 1:0:0:0: [sdc] Attached SCSI disk However, the tcm_ib_srpt-38 branch results in a kernel panic during I/O traffic (e.g. doing simple dd tests on exported disk) I was hoping that the latest patches in master would fix this. Does anyone have tips on initializing ib_srpt manually, with lio-utils, or with rtsadmin? . Also, If there's another branch more suitable for the latest LIO patches please lat me know. thanks, - Vasilis -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
