On Thu, Jun 20, 2013 at 11:31 PM, Nicholas A. Bellinger <n...@linux-iscsi.org > wrote:
> On Thu, 2013-06-20 at 19:01 +0300, Or Gerlitz wrote: > > On 19/06/2013 04:32, Nicholas A. Bellinger wrote: > > > So I'm pretty sure this is due to iscsi_target_parameters.c: > > > iscsi_set_keys_irrelevant_for_discovery() currently clearing > > > INITIATORRECVDATASEGMENTLENGTH and TARGETRECVDATASEGMENTLENGTH for > > > all discovery scenarios.. > > > > > > As I'm still not yet able to force iser discovery to occur on the > > > initiator side, can you give the following patch a shot on your > setup..? > > > > > > --nab > > > > Nic, > > > > I see that this patch exists in the queue branch of your target-pending > > tree, so I tested with that branch and still faced problems. So what > > happens now is that the login of the discovery session works fine! > > <nod>, thanks for verifying that particular bit.. > > > But, the sending over the IB connection of the TEXT PDU containing > > Sendtargets=Allwhich is 16 byte long > > > > iscsiadm: in kstart_conn > > iscsiadm: in __kipc_call > > iscsiadm: in kwritev > > iscsiadm: in nlpayload_read > > iscsiadm: in nlpayload_read > > iscsiadm: sending text pdu with CmdSN 1, exp_statsn 1 > > iscsiadm: > SendTargets=All > > iscsiadm: in ksend_pdu_begin > > iscsiadm: send PDU began for hdr 48 bytes and data 16 bytes > > iscsiadm: in kwritev > > iscsiadm: wrote 48 bytes of PDU header > > iscsiadm: in kwritev > > iscsiadm: wrote 16 bytes of PDU data > > iscsiadm: in ksend_pdu_end > > iscsiadm: in __kipc_call > > iscsiadm: in kwritev > > iscsiadm: in nlpayload_read > > iscsiadm: in nlpayload_read > > iscsiadm: send PDU finished for conn 28:0 > > > > > > > > fails, that is the kernel iser driver gets TX completion with error > > IB_WC_REM_OP_ERR > > > > iser: iser_drain_tx_cq:tx id ffff88006facac98 status 11 vend_err 89 > > > > > > Is there a chance you don't post RX buffer which is large enough to hold > > these 48 + 16 bytes in case this is discovery and not normal session? > > > > > > AFAICT, the isert_put_login_tx() -> isert_alloc_rx_descriptors() -> > isert_post_recv() is happening for both types of sessions, before the > last login response is posted and login state moves to full feature > phase. > > Can you post a target side dump with dynamic debugging enabled with the > following..? > > echo 'module iscsi_target_mod +p' > /debug/dynamic_debug/control > echo 'module ib_isert +p' > /debug/dynamic_debug/control > > I did that yesterday but there were no prints in the dmesg, should they be in the dmesg or I should see that by $ cat /debug/dynamic_debug/SOMETHING -- You received this message because you are subscribed to the Google Groups "open-iscsi" group. To unsubscribe from this group and stop receiving emails from it, send an email to open-iscsi+unsubscr...@googlegroups.com. To post to this group, send email to open-iscsi@googlegroups.com. Visit this group at http://groups.google.com/group/open-iscsi. For more options, visit https://groups.google.com/groups/opt_out.
