Thanks Or for your inputs. Could you please let me know whenever the solution with this fix is available for use? On Sat, Oct 5, 2013 at 10:33 PM, Or Gerlitz <ogerlitz@xxxxxxxxxxxx> wrote: > On 04/10/2013 02:20, Sushma R wrote: >> >> I experimented around a bit and here are my observations: >> >> 1. tgtd (Version 1.0.24) which comes with CentOS 6.4 distribution >> doesn't have iSER support. Configured targets as iscsi/tcp. Initiator >> is able to discover the target and login successfully. >> 2. Compiled latest code from git tree (Version 1.0.39) in iSCSI mode >> and configured targets as iscsi/tcp. Initiator is still able to >> discover targets and login successfully. >> 3. Compiled code from git tree (Version 1.0.39) for iSER support and >> configured targets as iscsi/tcp. Initiator fails to discover targets. >> Same is the case when the targets are configured as iser. > > > Oh, I think I got it.. when you enable iser we open an RDMA listerner on the > RDMA equivalent of the iSCSI TCP port (say 3260), > but the iSCSI TCP part of TGT does this too. You might end up with a mess, I > guess. > > With IB and RoCE the problem doesn't exist, only with iWARP, since it uses > TCP under the RDMA cover. its called > the "port space" problem, a solution to solve that was recently submitted > upstream but has some way to go before > merged and available to use. > > >> >> 1542.231217 10.196.86.16 -> 10.196.86.101 iSCSI Login Command >> 1542.231271 10.196.86.101 -> 10.196.86.16 TCP iscsi-target > 53665 [ACK] >> Seq=1 Ack=49 Win=262096 Len=0 TSV=1890672 TSER=2186863 >> 1542.231287 10.196.86.101 -> 10.196.86.16 TCP iscsi-target > 53665 [ACK] >> Seq=1 Ack=293 Win=261848 Len=0 TSV=1890672 TSER=2186863 >> 1542.231295 10.196.86.101 -> 10.196.86.16 TCP iscsi-target > 53665 [RST, >> ACK] Seq=1 Ack=293 Win=0 Len=0 >> 1543.231575 10.196.86.16 -> 10.196.86.101 TCP 53666 > iscsi-target [SYN] >> Seq=0 Win=14600 Len=0 MSS=1460 TSV=2187863 TSER=0 WS=7 >> 1543.231670 10.196.86.101 -> 10.196.86.16 TCP iscsi-target > 53666 [SYN, >> ACK] Seq=0 Ack=1 Win=65535 Len=0 MSS=1460 WS=3 TSV=1891339 TSER=2187863 >> 1543.231688 10.196.86.16 -> 10.196.86.101 TCP 53666 > iscsi-target [ACK] >> Seq=1 Ack=1 Win=14720 Len=0 TSV=2187864 TSER=1891339 >> 1543.231753 10.196.86.16 -> 10.196.86.101 TCP [TCP segment of a >> reassembled PDU] > > -- 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
