| Message ID | 20201203034100.29716-1-kashyap.desai@broadcom.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | io_uring iopoll in scsi layer | expand |
Hi Martin, Due to some issue in RCU lock (only in debugging environments), there was booting issue and shared host tag support of megaraid_sas driver is revert backed in 5.10 - https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit /?id=1a0e1943d8798cb3241fb5edb9a836af1611b60a == Commit message == It turns out that it causes long boot-time latencies (to the point of timeouts and failed boots). The cause is the increase in request queues, and a fix for that is queued up for 5.11, but we're reverting this commit that triggered the problem for now. == Can you include this patch set for 5.11 ? I see (origin/5.11/scsi-queue) has below change set. It looks like you have already queued up "shared host tag feature for 5.11" git log --oneline drivers/scsi/megaraid/ 498854102c1c scsi: megaraid_sas: Update function description 977001df0368 scsi: megaraid_sas: Use generic power management 8ed9d987c6d9 scsi: megaraid_sas: Drop PCI wakeup calls from .resume bba84aeccafb scsi: megaraid_sas: Simplify compat_ioctl handling 381d34e376e3 scsi: megaraid_sas: Check user-provided offsets 55e0500eb5c0 Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi 103fbf8e4020 scsi: megaraid_sas: Added support for shared host tagset for cpuhotplug 62aa501dc9dd scsi: megaraid: Make smp_affinity_enable static Kashyap > -----Original Message----- > From: Kashyap Desai [mailto:kashyap.desai@broadcom.com] > Sent: Thursday, December 3, 2020 9:11 AM > To: linux-scsi@vger.kernel.org > Cc: Kashyap Desai <kashyap.desai@broadcom.com> > Subject: [PATCH v2 0/4] io_uring iopoll in scsi layer > > This patch series is to support io_uring iopoll feature in scsi stack. This patch > set requires shared hosttag support. > > This patch set is created on top of for-next branch of > https://kernel.googlesource.com/pub/scm/linux/kernel/git/axboe/linux-block > > v2 -> > - updated feedback from v1. > - add reviewed-by & tested-by tag > - remove flood of prints in scsi_debug driver during iopoll > reported by Douglas Gilbert. > - added new patch to support to get shost from hctx. > added new helper function "scsi_init_hctx" > > v1 -> > Fixed warnings in scsi_debug driver. > Reported-by: kernel test robot <lkp@intel.com> > > Kashyap Desai (4): > add io_uring with IOPOLL support in scsi layer > megaraid_sas: iouring iopoll support > scsi_debug : iouring iopoll support > scsi: set shost as hctx driver_data > > drivers/scsi/megaraid/megaraid_sas.h | 2 + > drivers/scsi/megaraid/megaraid_sas_base.c | 90 ++++++++++++-- > drivers/scsi/megaraid/megaraid_sas_fusion.c | 43 ++++++- > drivers/scsi/megaraid/megaraid_sas_fusion.h | 3 + > drivers/scsi/scsi_debug.c | 130 ++++++++++++++++++++ > drivers/scsi/scsi_lib.c | 28 ++++- > include/scsi/scsi_cmnd.h | 1 + > include/scsi/scsi_host.h | 11 ++ > 8 files changed, 294 insertions(+), 14 deletions(-) > > > base-commit: 0eedceafd3a63fd082743c914853ef4b9247dbe6 > -- > 2.18.1
Kashyap, > Can you include this patch set for 5.11 ? I see > (origin/5.11/scsi-queue) has below change set. It looks like you have > already queued up "shared host tag feature for 5.11" The revert was reverted in v5.11-rc3. Note that 5.12/scsi-queue is based on v5.11-rc2 so the queue tree does not have the commit.