Date: Fri, 12 Aug 2016 01:51:22 +0300 From: Max Gurtovoy <maxg@mellanox.com> To: Ben RUBSON <ben.rubson@gmail.com>, <freebsd-scsi@freebsd.org> Cc: Oren Duer <oren@mellanox.com>, Oded Shanoon <odeds@mellanox.com>, "Meny Yossefi" <menyy@mellanox.com>, Hans Petter Selasky <hanss@mellanox.com>, "Roy Shterman" <roysh@mellanox.com> Subject: Re: Help to make iSER working Message-ID: <beeb0b05-98a0-6c9b-cc37-fd9876477558@mellanox.com> In-Reply-To: <8207D6A0-3647-48B4-A4E0-3F1FCF3A6723@gmail.com> References: <71E4886B-61C3-4091-A7FF-E5A4F59AEACE@gmail.com> <64d8bc44-b6a3-4c0a-6d13-f919bf26685a@mellanox.com> <41CCC244-A781-4087-A811-B33847EDEC01@gmail.com> <6a464f2c-c048-d29c-e602-c129b35a5d4a@mellanox.com> <B3B47B30-D253-4543-A813-1AEDD3EE2656@gmail.com> <a8b1cd70-3e96-2dd6-20ae-1bf3b315ff89@mellanox.com> <621BCC32-4612-410F-B658-D1086A7A3A09@gmail.com> <8207D6A0-3647-48B4-A4E0-3F1FCF3A6723@gmail.com>
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Hi, On 8/11/2016 11:43 PM, Ben RUBSON wrote: > Here are the tests with udaddy from FreeBSD, trying to connect to Linux : > > # udaddy -s 192.168.2.2 > libibverbs: Warning: couldn't open config directory '/etc/ibverbs/'. > libibverbs: Warning: couldn't open config directory '/etc/ibverbs/'. > udaddy: starting client > udaddy: connecting > libibverbs: Warning: couldn't open config directory '/etc/ibverbs/'. > udaddy: event: RDMA_CM_EVENT_ADDR_ERROR, error: -19 yes, you got the same event in iser (event 1). There is a configuration issue with your setup. Once you overcome this, iSER should work for you. Meny/Hans, can you assist here ? Thanks, Max. > test complete > return status -19 > > Sounds like the issue is with FreeBSD itself. > > Ben > > > >> On 11 Aug 2016, at 18:59, Ben RUBSON <ben.rubson@gmail.com> wrote: >> >> >>> On 11 Aug 2016, at 18:10, Max Gurtovoy <maxg@mellanox.com> wrote: >>> >>> On 8/11/2016 6:33 PM, Ben RUBSON wrote: >>>> Thank you very much Max for your help. >>>> >>>> >>>> >>>> I managed to compile the kernel with iSER support doing the 3 modifications below. >>>> >>>> I added the following to /usr/src/sys/conf/options : >>>> ICL_KERNEL_PROXY opt_global.h >>>> >>>> And I added "options ICL_KERNEL_PROXY" to my kernel configuration file. >>>> >>>> I then faced this compilation error : >>>> /usr/src/sys/modules/ctl/../../cam/ctl/ctl_frontend_iscsi.c:1358:2: error: implicit declaration of function 'icl_conn_handoff_sock' >>>> icl_conn_handoff_sock(cs->cs_conn, so); >>>> /usr/src/sys/modules/ctl/../../cam/ctl/ctl_frontend_iscsi.c:1358:2: note: did you mean 'icl_soft_handoff_sock'? >>>> /usr/src/sys/dev/iscsi/icl.h:158:7: note: 'icl_soft_handoff_sock' declared here >>>> int icl_soft_handoff_sock(struct icl_conn *ic, struct socket *so); >>>> >>>> So I replaced icl_conn_handoff_sock by icl_soft_handoff_sock (sounds like it is the needed correction). >>>> >>>> iscsictl -r now does not produce previous "invalid argument" error. >>>> >>>> @trasz : perhaps these modifications should be done in FreeBSD 11 source tree ? >> >> I'm also rebuilding world with the following to see if it can help : >> # cat /etc/src.conf >> WITH_ICL_KERNEL_PROXY="YES" >> WITH_OFED="YES" >> >>>> Now I'm facing the following issue : >>>> >>>> # iscsictl -A -r -t iqn.2012-06.com.test:target1 -p 192.168.2.2 >>>> iscsid[8743]: 192.168.2.2 (iqn.2012-06.com.test:target1): failed to connect to 192.168.2.2 using ICL kernel proxy: ISCSIDCONNECT: Input/output error >>>> kernel: ERROR: iser_connect_error: conn 0xfffff8096786f000 >>>> iscsid[1078]: child process 8743 terminated with exit status 1 >>> >>> please increase the debug level in both initiator and target and sent it out. >> >> Logs from the initiator : >> iscsid[39668]: 192.168.2.2 (iqn.2012-06.com.test:target1): failed to connect to 192.168.2.2 using ICL kernel proxy: ISCSIDCONNECT: Input/output error >> kernel: INFO: iser_free_ib_conn_res: freeing conn 0xfffff8048d276000 cma_id 0 qp 0 >> kernel: DEBUG: iser_conn_connect: before cv_wait: 0xfffff8048d276000 >> kernel: INFO: iser_cma_handler: event 1 status -19 conn 0xfffff8048d276000 id 0xfffff80880606800 >> kernel: ERROR: iser_connect_error: conn 0xfffff8048d276000 >> kernel: DEBUG: iser_conn_connect: after cv_wait: 0xfffff8048d276000 >> iscsid[1078]: child process 39668 terminated with exit status 1 >> >> Logs from the target (here I tried TGT) : >> No logs, as if TGT did not receive anything. >> If I try to connect without the "-r", here is what I get : >> tgtd: login_start(502) Target iqn.2012-06.com.test:target1 is RDMA, but conn cid:0 from iqn.1994-09.org.freebsd:srv1 is TCP >> So target is correctly iSER configured. >> I tried without iSER on both sides, of course it works. >> >>> From first look I think you need to configure the LIO target to work with demo mode. >> >> I double-checked, LIO was in demo mode, I followed this guideline : >> https://community.mellanox.com/docs/DOC-1468 >> >> One strange thing, on initiator, sounds like no packet goes through the interface when trying to connect : >> # sysctl hw.mlxen1.stat.rx_packets hw.mlxen1.stat.tx_packets >> hw.mlxen1.stat.rx_packets: 386 >> hw.mlxen1.stat.tx_packets: 409 >> # iscsictl -A -r -t iqn.2012-06.com.test:target1 -p 192.168.2.2 >> # sysctl hw.mlxen1.stat.rx_packets hw.mlxen1.stat.tx_packets >> hw.mlxen1.stat.rx_packets: 386 >> hw.mlxen1.stat.tx_packets: 409 >> >>> Another thing you can try is the user space tgt target (compile with make ISCSI_RDMA=1) that I work with mostly. >>> >>>> >>>> If I remove the "-r" option from the iscsictl command, it correctly connects to the target. >>>> >>>> On target side, Lio, targetcli : >>>> /> ls iscsi/ >>>> o- iscsi ............................................. [1 Target] >>>> o- iqn.2012-06.com.test:target1 ....................... [1 TPG] >>>> o- tpg1 ........................................... [enabled] >>>> o- acls .......................................... [0 ACLs] >>>> o- luns ........................................... [1 LUN] >>>> | o- lun0 ..................... [iblock/block1 (/dev/sdc7)] >>>> o- portals ..................................... [1 Portal] >>>> o- 192.168.2.2:3260 .................. [OK, iser enabled] >>>> >>>> I wanted to make some RDMA connection tests with udaddy for example, but I did not found the FreeBSD version. >>>> >>>> Any advice ? >>>> >>>> Many thanks ! >>>> >>>> Ben >>>> >>>> >>>> >>>>> On 11 Aug 2016, at 15:44, Max Gurtovoy <maxg@mellanox.com> wrote: >>>>> >>>>> These are the instructions I get from iscsi maintainer that merged our code to FreeBSD-11: >>>>> 1. set WITH_OFED=yes in /etc/make.conf >>>>> 2. "make buildkernel buildworld installkernel installworld" >>>>> 3. reboot >>>>> 4. kldload iser >>>>> >>>>> After that, make sure you configured all the interfaces correctly and that you have ping between the 2 servers. >>>>> later you need to check basic RDMA stuff on your servers (Added Hans/Oded/Meny to help you if needed). >>>>> >>>>> Only if the above are working you can proceed to check iser. >>>>> >>>>> Max. >>>>> >>>>> On 8/11/2016 4:22 PM, Ben RUBSON wrote: >>>>>> I just tested to connect to a Linux iSER enabled target, but I still get this error message at initiator side : >>>>>> iscsid[1187]: 192.168.2.2 (iqn.2012-06.com.test:target1): failed to connect to 192.168.2.2 using ICL kernel proxy: ISCSIDCONNECT: Invalid argument >>>>>> >>>>>>> as if my initiator did not understand the iSER command "ISCSIDCONNECT". >>>>>>> How to be sure everything is correctly compiled with ICL_KERNEL_PROXY enabled ? >>>>>> >>>>>> Ben >>>>>> >>>>>> >>>>>>> On 10 Aug 2016, at 22:51, Max Gurtovoy <maxg@mellanox.com> wrote: >>>>>>> >>>>>>> Hi Ben, >>>>>>> >>>>>>> iSER initiator is supported in FreeBSD-11 but not the iser target. >>>>>>> for the target you should use Linux target such as TGT (user space), >>>>>>> Lio or SCST. >>>>>>> >>>>>>> thanks, >>>>>>> Max. >>>>>>> >>>>>>> >>>>>>> On 8/10/2016 8:13 PM, Ben RUBSON wrote: >>>>>>>> Hello, >>>>>>>> >>>>>>>> I have some difficulties to make iSER (FreeBSD 11 BETA3) working. >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> ### My configuration : >>>>>>>> >>>>>>>> 2 servers with Mellanox ConnectX-3 NICs. >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> ### What I did : >>>>>>>> >>>>>>>> I rebuilt kernel adding the following to GENERIC : >>>>>>>> options OFED >>>>>>>> device mlxen >>>>>>>> options COMPAT_LINUXKPI >>>>>>>> >>>>>>>> I built iser : >>>>>>>> cd /usr/src/sys/modules/iser/ ; make ; make install ; kldload iser >>>>>>>> (I saw later-on that I could have used "device iser" in kernel configuration) >>>>>>>> >>>>>>>> My /etc/ctl.conf : >>>>>>>> portal-group pg0 { >>>>>>>> discovery-auth-group no-authentication >>>>>>>> listen 192.168.2.2 >>>>>>>> offload iser >>>>>>>> } >>>>>>>> target iqn.2012-06.com.test:target1 { >>>>>>>> auth-group no-authentication >>>>>>>> portal-group pg0 >>>>>>>> alias my-iser-disk >>>>>>>> lun 0 { >>>>>>>> path /dev/da8 >>>>>>>> } >>>>>>>> } >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> ### Error : >>>>>>>> >>>>>>>> As soon as I do the following : >>>>>>>> iscsictl -A -r -t iqn.2012-06.com.test:target1 -p 192.168.2.2 >>>>>>>> I get this error : >>>>>>>> iscsid[1187]: 192.168.2.2 (iqn.2012-06.com.test:target1): failed to connect to 192.168.2.2 using ICL kernel proxy: ISCSIDCONNECT: Invalid argument >>>>>>>> iscsid[655]: child process 1187 terminated with exit status 1 >>>>>>>> >>>>>>>> "sysctl hw.mlxen1.stat.tx_packets" on initiator shows that no packet is sent at all when trying to connect. >>>>>>>> >>>>>>>> Did I miss something ? >>>>>>>> >>>>>>>> Many thanks ! >>>>>>>> >>>>>>>> Ben > > _______________________________________________ > freebsd-scsi@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-scsi > To unsubscribe, send any mail to "freebsd-scsi-unsubscribe@freebsd.org" >
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