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linux/drivers/scsi
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Brian King 4fdd7c7aab ipr: Reboot speed improvements 
Currently when performing a reboot with an ipr adapter,
the adapter gets shutdown completely, flushing all write
cache, as well as performing a full hardware reset of the card
during the shutdown phase of the old kernel. This ensures
the adapter is in a fully quiesced state across the reboot.

There are scenarios, however, such as when performing
kexec, where this full adapter shutdown is not required
and not desired, since it can make the reboot process take
noticeably longer.

This patch adds a module parameter to allow for skipping the
full shutdown during reboot. Rather than performing a full
adapter shutdown and reset, we simply cancel any outstanding
error buffers, place the adapter into a state where it has no
memory of any DMA addresses from the old kernel, then disable
the device. This significantly speeds up kexec boot, particularly
in configurations with multiple ipr adapters.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Reviewed-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Reviewed-by: Daniel Kreling <kreling@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-04-09 13:42:07 -07:00
..
aacraid Merge remote-tracking branch 'scsi-queue/drivers-for-3.19' into for-linus 2014-12-08 07:42:25 -08:00
aic7xxx aic7xxx: replace kmalloc/memset by kzalloc 2015-04-09 13:22:10 -07:00
aic94xx Merge remote-tracking branch 'scsi-queue/drivers-for-3.19' into for-linus 2014-12-18 05:56:29 -08:00
arcmsr scsi: drop reason argument from ->change_queue_depth 2014-11-24 14:45:27 +01:00
arm scsi: replace seq_printf with seq_puts 2015-02-02 09:57:45 -08:00
be2iscsi SCSI misc on 20150221 2015-02-21 19:16:42 -08:00
bfa scsi: drop reason argument from ->change_queue_depth 2014-11-24 14:45:27 +01:00
bnx2fc Merge remote-tracking branch 'scsi-queue/drivers-for-3.19' into for-linus 2014-12-18 05:56:29 -08:00
bnx2i scsi: drop reason argument from ->change_queue_depth 2014-11-24 14:45:27 +01:00
csiostor Merge branch 'debugfs_automount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2015-02-17 15:18:19 -08:00
cxgbi cxgb4i : Call into recently added cxgb4 ipv6 api 2015-01-15 18:59:46 -05:00
device_handler scsi: fix device handler detach oops 2015-02-02 13:45:28 +01:00
dpt
esas2r SCSI misc on 20150209 2015-02-11 10:28:45 -08:00
fcoe Merge remote-tracking branch 'scsi-queue/drivers-for-3.19' into for-linus 2014-12-18 05:56:29 -08:00
fnic fnic: IOMMU Fault occurs when IO and abort IO is out of order 2014-12-30 13:31:45 +01:00
ibmvscsi ibmvfc: remove unused tag variable 2014-12-04 09:58:33 +01:00
isci Merge remote-tracking branch 'scsi-queue/drivers-for-3.19' into for-linus 2014-12-18 05:56:29 -08:00
libfc scsi: drop reason argument from ->change_queue_depth 2014-11-24 14:45:27 +01:00
libsas Merge remote-tracking branch 'scsi-queue/drivers-for-3.19' into for-linus 2014-12-18 05:56:29 -08:00
lpfc lpfc: correct device removal deadlock after link bounce 2015-01-09 15:44:24 +01:00
megaraid megaraid_sas: driver version update 2015-01-09 15:44:38 +01:00
mpt2sas mpt2sas: Bump driver version to 20.100.00.00 2015-01-13 16:27:29 +01:00
mpt3sas mpt2sas, mpt3sas: set cpu affinity for each MSIX vectors 2015-01-13 16:27:28 +01:00
mvsas Merge remote-tracking branch 'scsi-queue/drivers-for-3.19' into for-linus 2014-12-18 05:56:29 -08:00
osd scsi: remove scsi_driver owner field 2014-11-24 20:01:28 +01:00
pcmcia scsi: print single-character strings with seq_putc 2015-02-02 09:57:46 -08:00
pm8001 Merge remote-tracking branch 'scsi-queue/drivers-for-3.19' into for-linus 2014-12-18 05:56:29 -08:00
qla2xxx Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-02-21 13:21:19 -08:00
qla4xxx scsi: drop reason argument from ->change_queue_depth 2014-11-24 14:45:27 +01:00
sym53c8xx_2 scsi: drop reason argument from ->change_queue_depth 2014-11-24 14:45:27 +01:00
ufs ufs-qcom: add support for Qualcomm Technologies Inc platforms 2015-01-20 19:43:26 +01:00
.gitignore
3w-9xxx.c 3w-9xxx.c: Cleaning up missing null-terminate in conjunction with strncpy 2015-01-09 15:44:21 +01:00
3w-9xxx.h
3w-sas.c scsi: drop reason argument from ->change_queue_depth 2014-11-24 14:45:27 +01:00
3w-sas.h
3w-xxxx.c scsi: drop reason argument from ->change_queue_depth 2014-11-24 14:45:27 +01:00
3w-xxxx.h
53c700.c scsi: remove scsi_set_tag_type 2014-12-04 09:57:13 +01:00
53c700.h
53c700.scr
53c700_d.h_shipped
a100u2w.c
a100u2w.h
a2091.c
a2091.h
a3000.c scsi: drop owner assignment from platform_drivers 2014-10-20 16:21:33 +02:00
a3000.h
a4000t.c scsi: drop owner assignment from platform_drivers 2014-10-20 16:21:33 +02:00
advansys.c scsi: print single-character strings with seq_putc 2015-02-02 09:57:46 -08:00
aha152x.c aha152x: replace seq_printf with seq_puts 2015-02-02 09:57:45 -08:00
aha152x.h
aha1542.c
aha1542.h
aha1740.c scsi: correct return values for .eh_abort_handler implementations 2014-11-12 11:16:08 +01:00
aha1740.h
am53c974.c am53c974: remove left-over debugging code 2015-02-05 10:52:02 -08:00
atari_NCR5380.c ncr5380: Harmonize jiffies conversion with msecs_to_jiffies 2015-03-09 10:45:26 -04:00
atari_scsi.c ncr5380: Drop owner assignment from platform_drivers 2015-03-09 07:18:14 -04:00
atp870u.c scsi: merge consecutive seq_puts calls 2015-02-02 09:57:45 -08:00
atp870u.h
BusLogic.c scsi: replace seq_printf with seq_puts 2015-02-02 09:57:45 -08:00
BusLogic.h
bvme6000_scsi.c scsi: drop owner assignment from platform_drivers 2014-10-20 16:21:33 +02:00
ch.c ch: remove debug noise in ch_do_scsi 2015-01-20 19:43:23 +01:00
constants.c scsi: Conditionally compile in constants.c 2015-01-09 15:44:31 +01:00
dc395x.c scsi: print single-character strings with seq_putc 2015-02-02 09:57:46 -08:00
dc395x.h
dmx3191d.c dmx3191d: Use NO_IRQ 2014-11-20 09:11:11 +01:00
dpt_i2o.c scsi: replace seq_printf with seq_puts 2015-02-02 09:57:45 -08:00
dpti.h
dtc.c ncr5380: Drop legacy scsi.h include 2014-11-20 09:11:10 +01:00
dtc.h ncr5380: Remove *_RELEASE macros 2014-11-20 09:11:10 +01:00
eata.c scsi: drop reason argument from ->change_queue_depth 2014-11-24 14:45:27 +01:00
eata_generic.h
eata_pio.c scsi: replace seq_printf with seq_puts 2015-02-02 09:57:45 -08:00
eata_pio.h
esp_scsi.c esp_scsi: remove check for ESP_MAX_TAGS 2015-01-09 15:44:23 +01:00
esp_scsi.h esp_scsi: correctly detect am53c974 2014-11-24 16:13:16 +01:00
fdomain.c
fdomain.h
FlashPoint.c
g_NCR5380.c ncr5380: Harmonize jiffies conversion with msecs_to_jiffies 2015-03-09 10:45:26 -04:00
g_NCR5380.h ncr5380: Remove *_RELEASE macros 2014-11-20 09:11:10 +01:00
g_NCR5380_mmio.c
gdth.c scsi: rename SERVICE_ACTION_IN to SERVICE_ACTION_IN_16 2014-11-24 20:01:40 +01:00
gdth.h
gdth_ioctl.h
gdth_proc.c scsi: replace seq_printf with seq_puts 2015-02-02 09:57:45 -08:00
gdth_proc.h
gvp11.c
gvp11.h
hosts.c scsi: remove ordered_tag host template field 2014-11-12 11:19:41 +01:00
hpsa.c hpsa: correct compiler warnings introduced by hpsa-add-local-workqueue patch 2015-02-15 10:33:32 -08:00
hpsa.h hpsa: Use local workqueues instead of system workqueues 2015-02-02 09:57:44 -08:00
hpsa_cmd.h hpsa: do not use a void pointer for scsi_cmd field of struct CommandList 2015-02-02 09:57:43 -08:00
hptiop.c scsi: drop reason argument from ->change_queue_depth 2014-11-24 14:45:27 +01:00
hptiop.h
imm.c
imm.h
in2000.c scsi: print single-character strings with seq_putc 2015-02-02 09:57:46 -08:00
in2000.h
initio.c
initio.h
ipr.c ipr: Reboot speed improvements 2015-04-09 13:42:07 -07:00
ipr.h ipr: Reboot speed improvements 2015-04-09 13:42:07 -07:00
ips.c scsi: print single-character strings with seq_putc 2015-02-02 09:57:46 -08:00
ips.h
iscsi_boot_sysfs.c
iscsi_tcp.c scsi: drop reason argument from ->change_queue_depth 2014-11-24 14:45:27 +01:00
iscsi_tcp.h
jazz_esp.c scsi: drop owner assignment from platform_drivers 2014-10-20 16:21:33 +02:00
Kconfig scsi: Conditionally compile in constants.c 2015-01-09 15:44:31 +01:00
lasi700.c
libiscsi.c scsi: drop reason argument from ->change_queue_depth 2014-11-24 14:45:27 +01:00
libiscsi_tcp.c
mac53c94.c
mac53c94.h
mac_esp.c scsi: drop owner assignment from platform_drivers 2014-10-20 16:21:33 +02:00
mac_scsi.c ncr5380: Drop owner assignment from platform_drivers 2015-03-09 07:18:14 -04:00
Makefile scsi: Conditionally compile in constants.c 2015-01-09 15:44:31 +01:00
megaraid.c scsi: replace seq_printf with seq_puts 2015-02-02 09:57:45 -08:00
megaraid.h
mesh.c
mesh.h
mvme16x_scsi.c scsi: drop owner assignment from platform_drivers 2014-10-20 16:21:33 +02:00
mvme147.c
mvme147.h
mvumi.c
mvumi.h
ncr53c8xx.c scsi: drop reason argument from ->change_queue_depth 2014-11-24 14:45:27 +01:00
ncr53c8xx.h
NCR53c406a.c
NCR5380.c ncr5380: Harmonize jiffies conversion with msecs_to_jiffies 2015-03-09 10:45:26 -04:00
NCR5380.h atari_NCR5380: Move static co-routine variables to host data 2014-11-20 09:11:20 +01:00
NCR_D700.c
NCR_D700.h
NCR_Q720.c
NCR_Q720.h
nsp32.c scsi: print single-character strings with seq_putc 2015-02-02 09:57:46 -08:00
nsp32.h
nsp32_debug.c
nsp32_io.h
osst.c scsi: remove scsi_driver owner field 2014-11-24 20:01:28 +01:00
osst.h
osst_detect.h
osst_options.h
pas16.c ncr5380: Drop legacy scsi.h include 2014-11-20 09:11:10 +01:00
pas16.h ncr5380: Remove *_RELEASE macros 2014-11-20 09:11:10 +01:00
pmcraid.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2015-02-10 20:01:30 -08:00
pmcraid.h
ppa.c
ppa.h
ps3rom.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2014-12-12 10:08:06 -08:00
qla1280.c scsi: drop reason argument from ->change_queue_depth 2014-11-24 14:45:27 +01:00
qla1280.h
qlogicfas.c
qlogicfas408.c
qlogicfas408.h
qlogicpti.c scsi: drop owner assignment from platform_drivers 2014-10-20 16:21:33 +02:00
qlogicpti.h
raid_class.c
script_asm.pl
scsi.c scsi: proper state checking and module refcount handling in scsi_device_get 2015-03-19 06:43:15 -07:00
scsi.h
scsi_debug.c scsi: use %*pb[l] to print bitmaps including cpumasks and nodemasks 2015-02-13 21:21:38 -08:00
scsi_devinfo.c scsi: blacklist RSOC for Microsoft iSCSI target devices 2014-12-15 10:41:23 +01:00
scsi_error.c scsi: do not display kernel pointer in message logs 2015-01-09 15:44:33 +01:00
scsi_ioctl.c scsi: return EAGAIN when resetting a device under EH 2014-11-12 11:16:12 +01:00
scsi_lib.c Merge branch 'for-3.20/core' of git://git.kernel.dk/linux-block 2015-02-12 14:13:23 -08:00
scsi_lib_dma.c
scsi_logging.c scsi_logging: return void for dev_printk() functions 2015-02-04 08:00:24 -08:00
scsi_logging.h scsi: simplify scsi_log_(send|completion) 2014-11-12 11:16:05 +01:00
scsi_module.c
scsi_netlink.c
scsi_pm.c SCSI / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM 2014-12-15 15:11:06 +01:00
scsi_priv.h SCSI / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM 2014-12-15 15:11:06 +01:00
scsi_proc.c scsi: print single-character strings with seq_putc 2015-02-02 09:57:46 -08:00
scsi_sas_internal.h
scsi_scan.c scsi: serialize ->rescan against ->remove 2015-03-19 06:38:43 -07:00
scsi_sysctl.c
scsi_sysfs.c scsi: remove ->change_queue_type method 2014-12-04 09:55:45 +01:00
scsi_trace.c scsi: print single-character strings with seq_putc 2015-02-02 09:57:46 -08:00
scsi_transport_api.h
scsi_transport_fc.c
scsi_transport_iscsi.c
scsi_transport_sas.c
scsi_transport_spi.c scsi: remove MSG_*_TAG defines 2014-12-04 09:58:33 +01:00
scsi_transport_srp.c
scsi_typedefs.h
scsicam.c scsi: PC partition tables are little endian 2014-11-12 11:15:54 +01:00
sd.c sd: don't grab a device references from driver methods 2015-03-19 06:40:53 -07:00
sd.h scsi: introduce sdev_prefix_printk() 2014-11-12 11:15:57 +01:00
sd_dif.c
ses.c ses: Add power_status to SES device slot 2015-01-09 15:44:19 +01:00
sg.c SCSI misc on 20150221 2015-02-21 19:16:42 -08:00
sgiwd93.c scsi: drop owner assignment from platform_drivers 2014-10-20 16:21:33 +02:00
sim710.c
sni_53c710.c scsi: drop owner assignment from platform_drivers 2014-10-20 16:21:33 +02:00
sr.c scsi: remove scsi_driver owner field 2014-11-24 20:01:28 +01:00
sr.h scsi: introduce sdev_prefix_printk() 2014-11-12 11:15:57 +01:00
sr_ioctl.c sr: reduce debug noise in sr_do_ioctl 2015-01-20 19:43:24 +01:00
sr_vendor.c
st.c mm: gup: use get_user_pages_unlocked 2015-02-11 17:06:05 -08:00
st.h
st_options.h
stex.c scsi: don't force tagged_supported in drivers 2014-11-12 11:19:44 +01:00
storvsc_drv.c scsi: storvsc: Set the tablesize based on the information given by the host 2015-04-09 13:22:12 -07:00
sun3_scsi.c ncr5380: Drop owner assignment from platform_drivers 2015-03-09 07:18:14 -04:00
sun3_scsi.h sun3_scsi: Move macro definitions 2014-11-20 09:11:15 +01:00
sun3_scsi_vme.c
sun3x_esp.c scsi: drop owner assignment from platform_drivers 2014-10-20 16:21:33 +02:00
sun_esp.c scsi: drop owner assignment from platform_drivers 2014-10-20 16:21:33 +02:00
sym53c416.c
sym53c416.h
t128.c ncr5380: Drop legacy scsi.h include 2014-11-20 09:11:10 +01:00
t128.h ncr5380: Remove *_RELEASE macros 2014-11-20 09:11:10 +01:00
u14-34f.c scsi: drop reason argument from ->change_queue_depth 2014-11-24 14:45:27 +01:00
ultrastor.c
ultrastor.h
virtio_scsi.c virtio/scsi: verify device has config space 2015-01-21 16:28:47 +10:30
vmw_pvscsi.c vmw_pscsi: simplify ->change_queue_depth 2014-11-24 14:45:28 +01:00
vmw_pvscsi.h
wd33c93.c scsi: print single-character strings with seq_putc 2015-02-02 09:57:46 -08:00
wd33c93.h
wd719x.c wd719x: add missing .module to wd719x_template 2015-02-15 10:34:39 -08:00
wd719x.h wd719x: Introduce Western Digital WD7193/7197/7296 PCI SCSI card driver 2014-11-25 15:42:54 +01:00
wd7000.c scsi: replace seq_printf with seq_puts 2015-02-02 09:57:45 -08:00
xen-scsifront.c
zalon.c
zorro7xx.c