linux_dsm_epyc7002/drivers/scsi
James Smart cf1a1d3e2d scsi: lpfc: Fix random heartbeat timeouts during heavy IO
NVME targets appear to randomly disconnect from the initiator when
running heavy IO.

The error is due to the host aggregate (across all controllers) io load
was beyond the maximum exchange count for nvme on the adapter. The
driver was properly returning a resource busy status, but the io load
was so great heartbeat commands would be bounced and not have a
successful retry within the fuzz amount for the nvme heartbeat (yes, a
very high io load!). Thus the target was terminating the controller due
to a keep alive failure.

Resolve by reserving a few exchanges (by counters) which can be used
when the adapter is out of normal exchanges and the command is a NVME
heartbeat command. As counters are used, while the reserved command is
outstanding, as soon as any other exchange completes, the counters are
adjusted and the reserved count is replenished. The heartbeat completes
execution in a normal fashion.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-12-20 21:11:44 -05:00
..
aacraid scsi: aacraid: remove unused variable managed_request_id 2017-12-04 20:32:53 -05:00
aic7xxx SCSI misc on 20171114 2017-11-14 16:23:44 -08:00
aic94xx treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts 2017-11-21 16:35:54 -08:00
arcmsr scsi: arcmsr: remove redundant check for secs < 0 2017-12-11 21:37:08 -05:00
arm treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
be2iscsi treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts 2017-11-21 16:35:54 -08:00
bfa scsi: bfa: convert to strlcpy/strlcat 2017-12-11 21:30:46 -05:00
bnx2fc scsi: bnx2fc: fix spelling mistake: "Couldnt" -> "Couldn't" 2017-12-04 22:56:02 -05:00
bnx2i scsi: bnx2i: bnx2i_hwi: use swap macro in bnx2i_send_iscsi_nopout 2017-12-04 20:32:52 -05:00
csiostor scsi: csiostor: fix spelling mistake: "Couldnt" -> "Couldn't" 2017-12-04 22:56:03 -05:00
cxgbi treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts 2017-11-21 16:35:54 -08:00
cxlflash Merge branch 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-11-17 11:54:55 -08:00
device_handler scsi: scsi_dh: Return SCSI_DH_XX error code from ->attach() 2017-09-25 19:03:14 -04:00
dpt sched/wait: Rename wait_queue_t => wait_queue_entry_t 2017-06-20 12:18:27 +02:00
esas2r treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
fcoe treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
fnic scsi: fnic: add a space after %p in printf format 2017-12-11 21:43:00 -05:00
hisi_sas scsi: hisi_sas: add v3 hw suspend and resume 2017-12-20 21:11:44 -05:00
ibmvscsi scsi: ibmvscsi: Convert timers to use timer_setup() 2017-11-01 11:27:06 -07:00
ibmvscsi_tgt scsi: ibmvscsis: add DRC indices to debug statements 2017-12-04 22:56:04 -05:00
isci Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-13 17:56:58 -08:00
libfc treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts 2017-11-21 16:35:54 -08:00
libsas treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts 2017-11-21 16:35:54 -08:00
lpfc scsi: lpfc: Fix random heartbeat timeouts during heavy IO 2017-12-20 21:11:44 -05:00
megaraid SCSI misc on 20171114 2017-11-14 16:23:44 -08:00
mpt3sas scsi: mpt3sas: Remove unused variable requeue_event 2017-12-04 22:56:01 -05:00
mvsas treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts 2017-11-21 16:35:54 -08:00
osd blk-map: call blk_queue_bounce from blk_rq_append_bio 2017-06-27 12:13:21 -06:00
pcmcia License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pm8001 treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts 2017-11-21 16:35:54 -08:00
qedf Merge branch 'fixes' into misc 2017-09-07 12:12:43 -07:00
qedi Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-11-15 11:56:19 -08:00
qla2xxx scsi: qla2xxx: remove duplicate includes 2017-12-11 21:52:38 -05:00
qla4xxx scsi: qla4xxx: Convert timers to use timer_setup() 2017-11-01 11:44:40 -07:00
smartpqi SCSI misc on 20171114 2017-11-14 16:23:44 -08:00
snic License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sym53c8xx_2 treewide: setup_timer() -> timer_setup() (2 field) 2017-11-21 15:57:09 -08:00
ufs scsi: ufs: add some definitions included in UFS HCI specification 2017-12-04 22:56:01 -05:00
.gitignore scsi: scsi_devinfo: Add scsi_devinfo_tbl.c 2017-10-25 05:40:22 -04:00
3w-9xxx.c scsi: 3w-9xxx: rework lock timeouts 2017-12-04 20:32:53 -05:00
3w-9xxx.h scsi: 3w-9xxx: rework lock timeouts 2017-12-04 20:32:53 -05:00
3w-sas.c scsi: 3ware: use 64-bit times for FW time sync 2017-12-04 20:32:53 -05:00
3w-sas.h
3w-xxxx.c
3w-xxxx.h
53c700_d.h_shipped
53c700.c scsi: 53c700: move bus reset to host reset 2017-08-25 17:21:11 -04:00
53c700.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
53c700.scr
a100u2w.c
a100u2w.h
a2091.c scsi: drop bus reset for wd33c93-compatible boards 2017-08-25 17:21:10 -04:00
a2091.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
a3000.c scsi: drop bus reset for wd33c93-compatible boards 2017-08-25 17:21:10 -04:00
a3000.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
a4000t.c
advansys.c scsi: advansys: fix uninitialized data access 2017-04-04 19:39:39 -04:00
aha152x.c scsi: aha152x: drop host reset 2017-08-25 17:21:11 -04:00
aha152x.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
aha1542.c scsi: aha1542: constify pnp_device_id 2017-08-24 22:29:07 -04:00
aha1542.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
aha1740.c
aha1740.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
am53c974.c
atari_scsi.c scsi: NCR5380: Move bus reset to host reset 2017-08-25 17:21:11 -04:00
atp870u.c
atp870u.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
BusLogic.c scsi: BusLogic: fix incorrect spelling of adatper_reset_req 2017-04-21 10:31:33 -04:00
BusLogic.h scsi: BusLogic: fix incorrect spelling of adatper_reset_req 2017-04-21 10:31:33 -04:00
bvme6000_scsi.c
ch.c scsi: ch: add refcounting 2017-08-24 22:29:06 -04:00
constants.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
dc395x.c scsi: dc395x: Convert timers to use timer_setup() 2017-10-27 02:22:00 -07:00
dc395x.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
dmx3191d.c scsi: NCR5380: Move bus reset to host reset 2017-08-25 17:21:11 -04:00
dpt_i2o.c scsi: dpt_i2o: remove redundant null check on array device 2017-08-10 19:55:35 -04:00
dpti.h
eata_generic.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
eata_pio.c
eata_pio.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
eata.c scsi: eata: remove 'arg_done' from eata2x_eh_host_reset() 2017-08-25 17:21:12 -04:00
esp_scsi.c scsi: esp_scsi: Always clear msg_out_len after MESSAGE OUT phase 2017-08-10 19:55:35 -04:00
esp_scsi.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fdomain.c scsi: fdomain: move bus reset to host reset 2017-08-25 17:21:10 -04:00
fdomain.h scsi: fdomain: move bus reset to host reset 2017-08-25 17:21:10 -04:00
FlashPoint.c
g_NCR5380.c scsi: NCR5380: Move bus reset to host reset 2017-08-25 17:21:11 -04:00
gdth_ioctl.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
gdth_proc.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
gdth_proc.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
gdth.c scsi: gdth: Convert timers to use timer_setup() 2017-10-27 02:22:00 -07:00
gdth.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
gvp11.c scsi: drop bus reset for wd33c93-compatible boards 2017-08-25 17:21:10 -04:00
gvp11.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hosts.c scsi: core: Ensure that the SCSI error handler gets woken up 2017-12-07 21:06:31 -05:00
hpsa_cmd.h scsi: hpsa: update discovery polling 2017-10-25 04:55:18 -04:00
hpsa.c scsi: hpsa: remove an unnecessary NULL check 2017-12-04 20:32:55 -05:00
hpsa.h scsi: hpsa: add support for legacy boards 2017-08-24 22:28:55 -04:00
hptiop.c scsi: hptiop: Simplify reset handling 2017-08-25 17:21:10 -04:00
hptiop.h
imm.c scsi: imm: drop duplicate bus_reset handler 2017-08-25 17:21:11 -04:00
imm.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
initio.c
initio.h
ipr.c scsi: ipr: fix incorrect indentation of assignment statement 2017-12-04 22:56:03 -05:00
ipr.h scsi: ipr: Fix scsi-mq lockdep issue 2017-08-08 11:49:51 -04:00
ips.c sched/wait: Rename wait_queue_t => wait_queue_entry_t 2017-06-20 12:18:27 +02:00
ips.h sched/wait: Rename wait_queue_t => wait_queue_entry_t 2017-06-20 12:18:27 +02:00
iscsi_boot_sysfs.c
iscsi_tcp.c scsi: iscsi_tcp: Remove a set-but-not-used variable 2017-08-25 17:08:08 -04:00
iscsi_tcp.h
jazz_esp.c
Kconfig Merge branch 'for-linus' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2017-11-15 10:14:11 -08:00
lasi700.c parisc/scsi/lasi700: Fix section mismatches 2017-08-22 16:34:36 +02:00
libiscsi_tcp.c
libiscsi.c Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-13 17:56:58 -08:00
mac53c94.c scsi: Convert to using %pOF instead of full_name 2017-08-07 14:04:02 -04:00
mac53c94.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mac_esp.c scsi: mac_esp: Fix PIO transfers for MESSAGE IN phase 2017-08-10 19:55:34 -04:00
mac_scsi.c scsi: NCR5380: Move bus reset to host reset 2017-08-25 17:21:11 -04:00
Makefile SCSI misc on 20171114 2017-11-14 16:23:44 -08:00
megaraid.c scsi: megaraid: fix format-overflow warning 2017-08-07 14:04:01 -04:00
megaraid.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mesh.c
mesh.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mvme16x_scsi.c
mvme147.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mvme147.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mvumi.c scsi: mvumi: remove code handling zero scsi_sg_count(scmd) case 2017-04-24 18:16:49 -04:00
mvumi.h
ncr53c8xx.c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
ncr53c8xx.h
NCR53c406a.c
NCR5380.c SCSI misc on 20171114 2017-11-14 16:23:44 -08:00
NCR5380.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
NCR_D700.c
NCR_D700.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
NCR_Q720.c dma-coherent: remove the DMA_MEMORY_MAP and DMA_MEMORY_IO flags 2017-09-01 11:59:17 +02:00
NCR_Q720.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nsp32_debug.c
nsp32_io.h
nsp32.c scsi: nsp32: fix logic bug in error handling 2017-10-16 22:38:44 -04:00
nsp32.h
osst_detect.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
osst_options.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
osst.c scsi: osst: silence underflow warning in osst_verify_frame() 2017-08-24 22:29:01 -04:00
osst.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pmcraid.c scsi: pmcraid: use correct size unit when calling find_first_zero_bit() 2017-12-07 21:22:37 -05:00
pmcraid.h scsi: pmcraid: Replace PCI pool old API 2017-08-07 14:04:01 -04:00
ppa.c scsi: ppa: mark expected switch fall-throughs 2017-12-04 20:32:52 -05:00
ppa.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ps3rom.c
qla1280.c timer: Remove init_timer_on_stack() in favor of timer_setup_on_stack() 2017-10-05 15:01:17 +02:00
qla1280.h timer: Remove init_timer_on_stack() in favor of timer_setup_on_stack() 2017-10-05 15:01:17 +02:00
qlogicfas408.c scsi: qlogicfas: move bus_reset to host_reset 2017-08-25 17:21:11 -04:00
qlogicfas408.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
qlogicfas.c scsi: qlogicfas: move bus_reset to host_reset 2017-08-25 17:21:11 -04:00
qlogicpti.c scsi: qlogicpti: fixup qlogicpti_reset() definition 2017-08-28 22:15:46 -04:00
qlogicpti.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
raid_class.c
script_asm.pl
scsi_common.c scsi: core: doc. fixes to scsi_common.c 2017-12-11 21:39:39 -05:00
scsi_debug.c scsi: scsi_debug: Add support for injecting SCSI_MLQUEUE_HOST_BUSY 2017-12-07 21:50:51 -05:00
scsi_debugfs.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
scsi_debugfs.h scsi: Implement blk_mq_ops.show_rq() 2017-04-26 15:09:04 -06:00
scsi_devinfo.c scsi: devinfo: replace "Dell PV 650F" with "EMC CLARiiON" 2017-12-07 21:33:35 -05:00
scsi_dh.c scsi: dh: add new rdac devices 2017-12-07 21:32:03 -05:00
scsi_error.c scsi: core: Convert a source code comment into a runtime check 2017-12-07 21:06:57 -05:00
scsi_ioctl.c scsi: Suppress gcc 7 fall-through warnings reported with W=1 2017-08-25 17:08:07 -04:00
scsi_lib_dma.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
scsi_lib.c scsi: core: Unexport scsi_initialize_rq() 2017-12-07 21:11:53 -05:00
scsi_logging.c
scsi_logging.h SCSI misc on 20171114 2017-11-14 16:23:44 -08:00
scsi_module.c
scsi_netlink.c netlink: extended ACK reporting 2017-04-13 13:58:20 -04:00
scsi_pm.c
scsi_priv.h scsi: dh: Remove scsi_dh_remove_device() 2017-12-07 21:13:45 -05:00
scsi_proc.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
scsi_sas_internal.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
scsi_scan.c scsi: Use 'blist_flags_t' for scsi_devinfo flags 2017-11-16 17:43:27 -05:00
scsi_sysctl.c
scsi_sysfs.c scsi: dh: Remove scsi_dh_remove_device() 2017-12-07 21:13:45 -05:00
scsi_trace.c
scsi_transport_api.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
scsi_transport_fc.c SCSI misc on 20171114 2017-11-14 16:23:44 -08:00
scsi_transport_iscsi.c SCSI misc on 20171114 2017-11-14 16:23:44 -08:00
scsi_transport_sas.c scsi: scsi_transport_sas: check reply payload length instead of bidi request 2017-10-16 23:40:51 -04:00
scsi_transport_spi.c
scsi_transport_srp.c Revert "scsi: make 'state' device attribute pollable" 2017-11-07 09:04:32 -08:00
scsi_typedefs.h
scsi.c Merge branch 'fixes' into misc 2017-09-07 12:12:43 -07:00
scsi.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
scsicam.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sd_dif.c
sd_zbc.c scsi: sd_zbc: Fix sd_zbc_read_zoned_characteristics() 2017-10-16 23:54:33 -04:00
sd.c scsi: sd: add missing KERN_CONT for disk spin-up 2017-12-04 22:56:02 -05:00
sd.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sense_codes.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ses.c scsi: ses: don't ask for diagnostic pages repeatedly during probe 2017-12-04 22:55:59 -05:00
sg.c Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block 2017-11-14 15:32:19 -08:00
sgiwd93.c scsi: drop bus reset for wd33c93-compatible boards 2017-08-25 17:21:10 -04:00
sim710.c
sni_53c710.c
sr_ioctl.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sr_vendor.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sr.c scsi: sd: sr: Convert two assignments into warning statements 2017-08-25 17:08:08 -04:00
sr.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
st_options.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
st.c scsi: st: fix kernel-doc mismatch 2017-12-04 20:32:53 -05:00
st.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
stex.c scsi: stex: make S6flag static 2017-04-26 18:32:29 -04:00
storvsc_drv.c scsi: storvsc: Avoid excessive host scan on controller change 2017-11-06 22:38:29 -05:00
sun3_scsi_vme.c
sun3_scsi.c scsi: NCR5380: Move bus reset to host reset 2017-08-25 17:21:11 -04:00
sun3x_esp.c
sun_esp.c scsi: sun_esp: fix device reference leaks 2017-06-27 21:46:55 -04:00
sym53c416.c
sym53c416.h
virtio_scsi.c scsi: virtio: virtio_scsi: Set can_queue to the length of the virtqueue. 2017-08-24 22:28:51 -04:00
vmw_pvscsi.c
vmw_pvscsi.h
wd33c93.c scsi: drop bus reset for wd33c93-compatible boards 2017-08-25 17:21:10 -04:00
wd33c93.h
wd719x.c scsi: wd719x: make card_types static const, shrinks object size 2017-12-04 20:32:55 -05:00
wd719x.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xen-scsifront.c scsi: xen-scsifront: Remove code that zeroes driver-private command data 2017-06-12 21:02:04 -04:00
zalon.c parisc/scsi/zalon: Fix section mismatches 2017-08-22 16:34:36 +02:00
zorro7xx.c