On Mon, Jan 15, 2018 at 03:12:36AM -0700, Kalderon, Michal wrote: > > From: linux-rdma-owner@xxxxxxxxxxxxxxx [mailto:linux-rdma- > > owner@xxxxxxxxxxxxxxx] On Behalf Of Nicholas A. Bellinger > > Sent: Monday, January 15, 2018 6:57 AM > > To: Shiraz Saleem <shiraz.saleem@xxxxxxxxx> > > Cc: Amrani, Ram <Ram.Amrani@xxxxxxxxxx>; Sagi Grimberg > > <sagi@xxxxxxxxxxx>; linux-rdma@xxxxxxxxxxxxxxx; Elior, Ariel > > <Ariel.Elior@xxxxxxxxxx>; target-devel <target-devel@xxxxxxxxxxxxxxx>; > > Potnuri Bharat Teja <bharat@xxxxxxxxxxx> > > Subject: Re: SQ overflow seen running isert traffic with high block sizes > > > > Hi Shiraz, Ram, Ariel, & Potnuri, > > > > Following up on this old thread, as it relates to Potnuri's recent fix for a iser- > > target queue-full memory leak: > > > > https://www.spinics.net/lists/target-devel/msg16282.html > > > > Just curious how frequent this happens in practice with sustained large block > > workloads, as it appears to effect at least three different iwarp RNICS (i40iw, > > qedr and iw_cxgb4)..? > > > > Is there anything else from an iser-target consumer level that should be > > changed for iwarp to avoid repeated ib_post_send() failures..? > > > Would like to mention, that although we are an iWARP RNIC as well, we've hit this > Issue when running RoCE. It's not iWARP related. > This is easily reproduced within seconds with IO size of 5121K > Using 5 Targets with 2 Ram Disk each and 5 targets with FileIO Disks each. > > IO Command used: > maim -b512k -T32 -t2 -Q8 -M0 -o -u -n -m17 -ftargets.dat -d1 > > thanks, > Michal Its seen with block size >= 2M on a single target 1 RAM disk config. And similar to Michals report; rather quickly, in a matter of seconds. fio --rw=read --bs=2048k --numjobs=1 --iodepth=128 --runtime=30 --size=20g --loops=1 --ioengine=libaio --direct=1 --invalidate=1 --fsync_on_close=1 --norandommap --exitall --filename=/dev/sdb --name=sdb Shiraz > > > On Fri, 2017-10-06 at 17:40 -0500, Shiraz Saleem wrote: > > > On Mon, Jul 17, 2017 at 03:26:04AM -0600, Amrani, Ram wrote: > > > > Hi Nicholas, > > > > > > > > > Just to confirm, the following four patches where required to get > > > > > Potnuri up and running on iser-target + iw_cxgb4 with a similarly > > > > > small number of hw SGEs: > > > > > > > > > > 7a56dc8 iser-target: avoid posting a recv buffer twice 555a65f > > > > > iser-target: Fix queue-full response handling > > > > > a446701 iscsi-target: Propigate queue_data_in + queue_status > > > > > errors fa7e25c target: Fix unknown fabric callback queue-full > > > > > errors > > > > > > > > > > So Did you test with Q-Logic/Cavium with RoCE using these four > > > > > patches, or just with commit a4467018..? > > > > > > > > > > Note these have not been CC'ed to stable yet, as I was reluctant > > > > > since they didn't have much mileage on them at the time.. > > > > > > > > > > Now however, they should be OK to consider for stable, especially > > > > > if they get you unblocked as well. > > > > > > > > The issue is still seen with these four patches. > > > > > > > > Thanks, > > > > Ram > > > > > > Hi, > > > > > > On X722 Iwarp NICs (i40iw) too, we are seeing a similar issue of SQ > > > overflow being hit on isert for larger block sizes. 4.14-rc2 kernel. > > > > > > Eventually there is a timeout/conn-error on iser initiator and the > > connection is torn down. > > > > > > The aforementioned patches dont seem to be alleviating the SQ overflow > > issue? > > > > > > Initiator > > > ------------ > > > > > > [17007.465524] scsi host11: iSCSI Initiator over iSER [17007.466295] > > > iscsi: invalid can_queue of 55. can_queue must be a power of 2. > > > [17007.466924] iscsi: Rounding can_queue to 32. > > > [17007.471535] scsi 11:0:0:0: Direct-Access LIO-ORG ramdisk1_40G 4.0 > > PQ: 0 ANSI: 5 > > > [17007.471652] scsi 11:0:0:0: alua: supports implicit and explicit > > > TPGS [17007.471656] scsi 11:0:0:0: alua: device > > > naa.6001405ab790db5e8e94b0998ab4bf0b port group 0 rel port 1 > > > [17007.471782] sd 11:0:0:0: Attached scsi generic sg2 type 0 > > > [17007.472373] sd 11:0:0:0: [sdb] 83886080 512-byte logical blocks: > > > (42.9 GB/40.0 GiB) [17007.472405] sd 11:0:0:0: [sdb] Write Protect is > > > off [17007.472406] sd 11:0:0:0: [sdb] Mode Sense: 43 00 00 08 > > > [17007.472462] sd 11:0:0:0: [sdb] Write cache: disabled, read cache: > > > enabled, doesn't support DPO or FUA [17007.473412] sd 11:0:0:0: [sdb] > > > Attached SCSI disk [17007.478184] sd 11:0:0:0: alua: transition > > > timeout set to 60 seconds [17007.478186] sd 11:0:0:0: alua: port group 00 > > state A non-preferred supports TOlUSNA [17031.269821] sdb: > > > [17033.359789] EXT4-fs (sdb1): mounted filesystem with ordered data > > > mode. Opts: (null) [17049.056155] connection2:0: ping timeout of 5 > > > secs expired, recv timeout 5, last rx 4311705998, last ping > > > 4311711232, now 4311716352 [17049.057499] connection2:0: detected > > > conn error (1022) [17049.057558] modifyQP to CLOSING qp 3 > > > next_iw_state 3 [..] > > > > > > > > > Target > > > ---------- > > > [....] > > > [17066.397179] i40iw_post_send: qp 3 wr_opcode 0 ret_err -12 > > > [17066.397180] isert: isert_rdma_rw_ctx_post: Cmd: ffff8817fb8ec020 > > > failed to post RDMA res [17066.397183] i40iw_post_send: qp 3 wr_opcode > > > 0 ret_err -12 [17066.397183] isert: isert_rdma_rw_ctx_post: Cmd: > > > ffff8817fb8ea1f8 failed to post RDMA res [17066.397184] > > > i40iw_post_send: qp 3 wr_opcode 0 ret_err -12 [17066.397184] isert: > > > isert_rdma_rw_ctx_post: Cmd: ffff8817fb8e9bf0 failed to post RDMA res > > > [17066.397187] i40iw_post_send: qp 3 wr_opcode 0 ret_err -12 > > > [17066.397188] isert: isert_rdma_rw_ctx_post: Cmd: ffff8817fb8ecc30 > > > failed to post RDMA res [17066.397192] i40iw_post_send: qp 3 wr_opcode > > > 0 ret_err -12 [17066.397192] isert: isert_rdma_rw_ctx_post: Cmd: > > > ffff8817fb8f20a0 failed to post RDMA res [17066.397195] > > > i40iw_post_send: qp 3 wr_opcode 0 ret_err -12 [17066.397196] isert: > > > isert_rdma_rw_ctx_post: Cmd: ffff8817fb8ea800 failed to post RDMA res > > > [17066.397196] i40iw_post_send: qp 3 wr_opcode 0 ret_err -12 > > > [17066.397197] isert: isert_rdma_rw_ctx_post: Cmd: ffff8817fb8ede48 > > > failed to post RDMA res [17066.397200] i40iw_post_send: qp 3 wr_opcode > > > 0 ret_err -12 [17066.397200] isert: isert_rdma_rw_ctx_post: Cmd: > > > ffff8817fb8ec020 failed to post RDMA res [17066.397204] > > > i40iw_post_send: qp 3 wr_opcode 0 ret_err -12 [17066.397204] isert: > > > isert_rdma_rw_ctx_post: Cmd: ffff8817fb8ea1f8 failed to post RDMA res > > > [17066.397206] i40iw i40iw_process_aeq ae_id = 0x503 bool qp=1 qp_id = > > > 3 [17066.397207] i40iw_post_send: qp 3 wr_opcode 0 ret_err -12 > > > [17066.397207] isert: isert_rdma_rw_ctx_post: Cmd: ffff8817fb8e9bf0 > > > failed to post RDMA res [17066.397211] i40iw_post_send: qp 3 wr_opcode > > > 0 ret_err -12 [17066.397211] isert: isert_rdma_rw_ctx_post: Cmd: > > > ffff8817fb8ecc30 failed to post RDMA res [17066.397215] > > > i40iw_post_send: qp 3 wr_opcode 0 ret_err -12 [17066.397215] isert: > > > isert_rdma_rw_ctx_post: Cmd: ffff8817fb8f20a0 failed to post RDMA res > > > [17066.397218] i40iw_post_send: qp 3 wr_opcode 0 ret_err -12 > > > [17066.397219] isert: isert_rdma_rw_ctx_post: Cmd: ffff8817fb8ea800 > > > failed to post RDMA res [17066.397219] i40iw_post_send: qp 3 wr_opcode > > > 0 ret_err -12 [17066.397220] isert: isert_rdma_rw_ctx_post: Cmd: > > > ffff8817fb8ede48 failed to post RDMA res [17066.397232] > > > i40iw_post_send: qp 3 wr_opcode 0 ret_err -12 [17066.397233] isert: > > > isert_rdma_rw_ctx_post: Cmd: ffff8817fb8ec020 failed to post RDMA res > > > [17066.397237] i40iw_post_send: qp 3 wr_opcode 0 ret_err -12 > > > [17066.397237] isert: isert_rdma_rw_ctx_post: Cmd: ffff8817fb8ea1f8 > > > failed to post RDMA res [17066.397238] i40iw_post_send: qp 3 wr_opcode > > > 0 ret_err -12 [17066.397238] isert: isert_rdma_rw_ctx_post: Cmd: > > > ffff8817fb8e9bf0 failed to post RDMA res [17066.397242] > > > i40iw_post_send: qp 3 wr_opcode 0 ret_err -12 [17066.397242] isert: > > > isert_rdma_rw_ctx_post: Cmd: ffff8817fb8ecc30 failed to post RDMA res > > > [17066.397245] i40iw_post_send: qp 3 wr_opcode 0 ret_err -12 > > > [17066.397247] i40iw i40iw_process_aeq ae_id = 0x501 bool qp=1 qp_id = > > > 3 [17066.397247] isert: isert_rdma_rw_ctx_post: Cmd: ffff8817fb8f20a0 > > > failed to post RDMA res [17066.397251] QP 3 flush_issued > > > [17066.397252] i40iw_post_send: qp 3 wr_opcode 0 ret_err -22 > > > [17066.397252] isert: isert_rdma_rw_ctx_post: Cmd: ffff8817fb8ea800 > > > failed to post RDMA res [17066.397253] Got unknown fabric queue > > > status: -22 [17066.397254] QP 3 flush_issued [17066.397254] > > > i40iw_post_send: qp 3 wr_opcode 0 ret_err -22 [17066.397254] isert: > > > isert_rdma_rw_ctx_post: Cmd: ffff8817fb8ede48 failed to post RDMA res > > > [17066.397255] Got unknown fabric queue status: -22 [17066.397258] QP > > > 3 flush_issued [17066.397258] i40iw_post_send: qp 3 wr_opcode 0 > > > ret_err -22 [17066.397259] isert: isert_rdma_rw_ctx_post: Cmd: > > > ffff8817fb8ec020 failed to post RDMA res [17066.397259] Got unknown > > > fabric queue status: -22 [17066.397267] QP 3 flush_issued > > > [17066.397267] i40iw_post_send: qp 3 wr_opcode 0 ret_err -22 > > > [17066.397268] isert: isert_rdma_rw_ctx_post: Cmd: ffff8817fb8ea1f8 > > > failed to post RDMA res [17066.397268] Got unknown fabric queue > > > status: -22 [17066.397287] QP 3 flush_issued [17066.397287] > > > i40iw_post_send: qp 3 wr_opcode 0 ret_err -22 [17066.397288] isert: > > > isert_rdma_rw_ctx_post: Cmd: ffff8817fb8e9bf0 failed to post RDMA res > > > [17066.397288] Got unknown fabric queue status: -22 [17066.397291] QP > > > 3 flush_issued [17066.397292] i40iw_post_send: qp 3 wr_opcode 0 > > > ret_err -22 [17066.397292] isert: isert_rdma_rw_ctx_post: Cmd: > > > ffff8817fb8ecc30 failed to post RDMA res [17066.397292] Got unknown > > > fabric queue status: -22 [17066.397295] QP 3 flush_issued > > > [17066.397296] i40iw_post_send: qp 3 wr_opcode 0 ret_err -22 > > > [17066.397296] isert: isert_rdma_rw_ctx_post: Cmd: ffff8817fb8f20a0 > > > failed to post RDMA res [17066.397297] Got unknown fabric queue > > > status: -22 [17066.397307] QP 3 flush_issued [17066.397307] > > > i40iw_post_send: qp 3 wr_opcode 8 ret_err -22 [17066.397308] isert: > > > isert_post_response: ib_post_send failed with -22 [17066.397309] i40iw > > > i40iw_qp_disconnect Call close API [....] > > > > > > Shiraz > > > -- > > > To unsubscribe from this list: send the line "unsubscribe > > > target-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx > > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > > > > > -- > > To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the > > body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at > > http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
