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a96851d337
linux/drivers/scsi
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Uma Krishnan a96851d337 scsi: cxlflash: Reset hardware queue context via specified register 
Per the SISLite specification, context_reset() writes 0x1 to the LSB of the
reset register. When the AFU processes this reset request, it is expected
to clear the bit after reset is complete. The current implementation simply
checks that the entire value read back is not 1, instead of masking off the
LSB and evaluating it for a change to 0. Should the AFU manipulate other
bits during the reset (reading back a value of 0xF for example), successful
completion will be prematurely indicated given the existing logic.

Additionally, in the event that the context reset operation fails, there
does not currently exist a way to provide feedback to the initiator of the
reset. This poses a problem for the rare case that a context reset fails as
the caller will proceed on the assumption that all is well.

To remedy these issues, refactor the context reset routine to only mask off
the LSB when evaluating for success and return status to the caller. Also
update the context reset handler parameters to pass a hardware queue
reference instead of a single command to better reflect that the entire
queue associated with the context is impacted by the reset.

Signed-off-by: Uma Krishnan <ukrishn@linux.vnet.ibm.com>
Acked-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-06-26 15:01:07 -04:00
..
aacraid scsi: aacraid: Don't copy uninitialized stack memory to userspace 2017-06-26 15:01:03 -04:00
aic7xxx scsi: aic7xxx: fix order of arguments in function prototype 2017-04-19 22:17:23 -04:00
aic94xx scsi: sas: move scsi_remove_host call into sas_remove_host 2017-04-21 10:34:29 -04:00
arcmsr Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
arm scsi: ncr5380: Use correct types for DMA routines 2016-11-08 17:29:48 -05:00
be2iscsi scsi: be2iscsi: switch to pci_alloc_irq_vectors 2017-03-30 11:37:16 -04:00
bfa scsi: bfa: use designated initializers 2017-04-21 10:11:34 -04:00
bnx2fc scsi: bnx2fc: fix race condition in bnx2fc_get_host_stats() 2017-05-24 15:14:42 -04:00
bnx2i scsi: bnx2i: missing error code in bnx2i_ep_connect() 2017-06-26 15:01:03 -04:00
csiostor scsi: csiostor: update module version 2017-06-26 15:00:58 -04:00
cxgbi scsi: cxgb4i: assign rxqs in round robin mode 2017-06-26 15:01:02 -04:00
cxlflash scsi: cxlflash: Reset hardware queue context via specified register 2017-06-26 15:01:07 -04:00
device_handler scsi: scsi_dh_alua: remove synchronous STPG support 2017-06-26 12:44:35 -04:00
dpt
esas2r scsi: esas2r: Replace semaphore fs_api_semaphore with mutex 2017-06-12 21:17:22 -04:00
fcoe scsi: fcoe: Remove an extra out label in _fcoe_create function 2017-06-12 20:48:05 -04:00
fnic scsi: fnic: bug fix for fip.fip_subcode in fnic_fcoe_send_vlan_req 2017-03-23 09:57:23 -04:00
hisi_sas scsi: hisi_sas: redefine hisi_sas_phy.phy_type as u32 2017-06-26 15:01:04 -04:00
ibmvscsi scsi: ibmvfc: don't check for failure from mempool_alloc() 2017-04-18 21:50:29 -04:00
ibmvscsi_tgt ibmvscsis: Fix the incorrect req_lim_delta 2017-05-15 20:20:03 -07:00
isci scripts/spelling.txt: add regsiter -> register spelling mistake 2017-05-08 17:15:13 -07:00
libfc scsi: libfc: fix incorrect variable assignment 2017-05-16 21:08:42 -04:00
libsas SCSI misc on 20170503 2017-05-04 12:19:44 -07:00
lpfc scsi: lpfc: fix refcount error on node list 2017-06-26 15:01:01 -04:00
megaraid scsi: megaraid: Fix a sleep-in-atomic bug 2017-06-12 20:48:08 -04:00
mpt3sas scsi: Create two versions of scsi_internal_device_unblock() 2017-06-12 20:55:59 -04:00
mvsas scsi: sas: move scsi_remove_host call into sas_remove_host 2017-04-21 10:34:29 -04:00
osd char/misc patches for 4.12-rc1 2017-05-04 19:15:35 -07:00
pcmcia
pm8001 scsi: sas: move scsi_remove_host call into sas_remove_host 2017-04-21 10:34:29 -04:00
qedf scsi: qedf: Merge a few quoted strings split across lines 2017-06-12 21:21:45 -04:00
qedi scsi: qedi: Remove comparison of u16 idx with zero. 2017-06-26 15:01:05 -04:00
qla2xxx scsi: qla2xxx: don't include <generated/utsrelease.h> 2017-06-26 15:00:59 -04:00
qla4xxx scsi: qla4xxx: fix spelling mistake: "Tempalate" -> "Template" 2017-04-26 18:34:34 -04:00
smartpqi scsi: smartpqi: mark PM functions as __maybe_unused 2017-06-12 20:48:05 -04:00
snic scsi: snic: Remove code that zeroes driver-private command data 2017-06-12 21:02:03 -04:00
sym53c8xx_2 scsi: sym53c8xx_2: Use complete() instead complete_all() 2016-09-14 13:19:29 -04:00
ufs scsi: ufshcd-pci: Add Intel CNL support 2017-06-12 21:08:26 -04:00
.gitignore
3w-9xxx.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
3w-9xxx.h scsi: Update 3ware driver email addresses 2016-12-14 15:25:12 -05:00
3w-sas.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
3w-sas.h scsi: Update 3ware driver email addresses 2016-12-14 15:25:12 -05:00
3w-xxxx.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
3w-xxxx.h scsi: Update 3ware driver email addresses 2016-12-14 15:25:12 -05:00
53c700_d.h_shipped
53c700.c scsi: 53c700: switch to dma_alloc_attrs 2017-06-26 15:01:05 -04:00
53c700.h scsi: remove current_cmnd field from struct scsi_device 2016-07-13 22:33:23 -04:00
53c700.scr
a100u2w.c
a100u2w.h
a2091.c
a2091.h
a3000.c
a3000.h
a4000t.c
advansys.c scsi: advansys: fix uninitialized data access 2017-04-04 19:39:39 -04:00
aha152x.c Annotate hardware config module parameters in drivers/scsi/ 2017-04-20 12:02:32 +01:00
aha152x.h
aha1542.c Annotate hardware config module parameters in drivers/scsi/ 2017-04-20 12:02:32 +01:00
aha1542.h
aha1740.c
aha1740.h
am53c974.c
atari_scsi.c scsi: atari_scsi: Use m68k_realnum_memory for FastRAM test 2017-06-12 20:48:08 -04:00
atp870u.c
atp870u.h
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
constants.c scsi: fix upper bounds check of sense key in scsi_sense_key_string() 2016-08-16 00:49:32 -04:00
dc395x.c
dc395x.h
dmx3191d.c scsi: dmx3191d: use module_pci_driver 2016-11-16 20:43:50 -05:00
dpt_i2o.c scsi: dpt_i2o: double free if adpt_i2o_online_hba() fails 2017-01-05 00:21:12 -05:00
dpti.h
eata_generic.h
eata_pio.c eata_pio: missing break statement 2016-05-10 22:01:07 -04:00
eata_pio.h
eata.c
esp_scsi.c
esp_scsi.h
fdomain.c scsi: fdomain: drop fdomain_pci_tbl when built-in 2016-02-23 21:27:02 -05:00
fdomain.h
FlashPoint.c
g_NCR5380.c Annotate hardware config module parameters in drivers/scsi/ 2017-04-20 12:02:32 +01:00
gdth_ioctl.h
gdth_proc.c gdth: replace struct timeval with ktime_get_real_seconds() 2016-02-25 21:16:49 -05:00
gdth_proc.h
gdth.c Annotate hardware config module parameters in drivers/scsi/ 2017-04-20 12:02:32 +01:00
gdth.h
gvp11.c
gvp11.h
hosts.c scsi: allocate scsi_cmnd structures as part of struct request 2017-01-27 15:08:35 -07:00
hpsa_cmd.h scsi: hpsa: update identify physical device structure 2017-06-12 20:48:00 -04:00
hpsa.c scsi: hpsa: fix spelling mistake: "encrypytion" -> "encryption" 2017-06-26 15:01:04 -04:00
hpsa.h scsi: hpsa: remove abort handler 2017-06-12 20:48:01 -04:00
hptiop.c scsi: hptiop: make function hptiop_iop_request_callback_itl static 2017-06-26 15:01:02 -04:00
hptiop.h
imm.c imm: check parport_claim 2016-02-25 21:10:53 -05:00
imm.h
initio.c
initio.h
ipr.c SCSI misc on 20170503 2017-05-04 12:19:44 -07:00
ipr.h scsi: ipr: Driver version 2.6.4 2017-03-23 12:04:05 -04:00
ips.c scsi: ips: don't use custom hex_asc_upper[] table 2016-11-08 17:29:57 -05:00
ips.h Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
iscsi_boot_sysfs.c ibft: Expose iBFT acpi header via sysfs 2016-05-16 11:14:29 -04:00
iscsi_tcp.c treewide: convert PF_MEMALLOC manipulations to new helpers 2017-05-08 17:15:15 -07:00
iscsi_tcp.h
jazz_esp.c
Kconfig scsi: lpfc: Finalize Kconfig options for nvme 2017-03-15 13:37:18 -04:00
lasi700.c
libiscsi_tcp.c
libiscsi.c scsi: libiscsi: use kvzalloc for iscsi_pool_init 2017-06-12 20:48:04 -04:00
mac53c94.c
mac53c94.h
mac_esp.c SCSI misc on 20170503 2017-05-04 12:19:44 -07:00
mac_scsi.c scsi: ncr5380: Resolve various static checker warnings 2017-01-31 21:38:35 -05:00
Makefile scsi: Implement blk_mq_ops.show_rq() 2017-04-26 15:09:04 -06:00
megaraid.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
megaraid.h
mesh.c
mesh.h
mvme16x_scsi.c
mvme147.c
mvme147.h
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
ncr53c8xx.h
NCR53c406a.c
NCR5380.c scsi: ncr5380: Improve target selection robustness 2017-01-31 21:38:58 -05:00
NCR5380.h scsi: ncr5380: Clean up dead code and redundant macro usage 2017-01-31 21:37:44 -05:00
NCR_D700.c
NCR_D700.h
NCR_Q720.c
NCR_Q720.h
nsp32_debug.c
nsp32_io.h
nsp32.c
nsp32.h
osst_detect.h
osst_options.h
osst.c scsi: introduce a result field in struct scsi_request 2017-04-20 12:16:10 -06:00
osst.h
pmcraid.c scsi: pmcraid: remove redundant check to see if request_size is less than zero 2017-05-08 22:16:45 -04:00
pmcraid.h scsi: pmcraid: fix endianess sparse annotations 2017-04-24 18:11:22 -04:00
ppa.c scsi: ppa: use new parport device model 2016-02-23 21:27:02 -05:00
ppa.h
ps3rom.c
qla1280.c qla1280: Don't allocate 512kb of host tags 2016-04-30 09:25:26 -07:00
qla1280.h
qlogicfas408.c
qlogicfas408.h
qlogicfas.c Annotate hardware config module parameters in drivers/scsi/ 2017-04-20 12:02:32 +01:00
qlogicpti.c qlogicpti: Return correct error code 2016-03-01 20:06:49 -05:00
qlogicpti.h qlogicpti: Fix compiler warnings 2016-11-28 15:51:31 -05:00
raid_class.c
script_asm.pl
scsi_common.c scsi: always zero sshdr in scsi_normalize_sense 2017-02-22 19:33:00 -05:00
scsi_debug.c scsi: scsi_debug: Avoid PI being disabled when TPGS is enabled 2017-05-31 22:58:25 -04:00
scsi_debugfs.c scsi: Implement blk_mq_ops.show_rq() 2017-04-26 15:09:04 -06:00
scsi_debugfs.h scsi: Implement blk_mq_ops.show_rq() 2017-04-26 15:09:04 -06:00
scsi_devinfo.c scsi: scsi_devinfo: remove synchronous ALUA for NETAPP devices 2016-12-07 18:13:52 -05:00
scsi_dh.c scsi: use 'scsi_device_from_queue()' for scsi_dh 2017-02-22 18:41:42 -05:00
scsi_error.c scsi: Protect SCSI device state changes with a mutex 2017-06-12 20:55:59 -04:00
scsi_ioctl.c scsi: make the sense header argument to scsi_test_unit_ready mandatory 2017-02-22 19:35:24 -05:00
scsi_lib_dma.c
scsi_lib.c scsi: Make scsi_mq_prep_fn() call scsi_init_command() 2017-06-12 21:01:37 -04:00
scsi_logging.c
scsi_logging.h
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: Only add commands to the device command list if required by the LLD 2017-06-12 20:55:59 -04:00
scsi_proc.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
scsi_sas_internal.h scsi_transport_sas: add 'scsi_target_id' sysfs attribute 2016-03-14 21:05:04 -04:00
scsi_scan.c scsi: remove various unused blist flags 2017-06-26 12:44:27 -04:00
scsi_sysctl.c
scsi_sysfs.c scsi: Make __scsi_remove_device go straight from BLOCKED to DEL 2017-06-12 20:55:59 -04:00
scsi_trace.c scsi-trace: define ZBC_IN and ZBC_OUT 2016-04-11 16:57:09 -04:00
scsi_transport_api.h
scsi_transport_fc.c scsi: fix typos and grammar in comments of scsi_transport_fc.c 2017-06-26 15:01:01 -04:00
scsi_transport_iscsi.c scsi: scsi_transport_iscsi: Use flush_work in iscsi_remove_session 2017-03-27 22:03:33 -04:00
scsi_transport_sas.c SCSI misc on 20170503 2017-05-04 12:19:44 -07:00
scsi_transport_spi.c scsi: merge __scsi_execute into scsi_execute 2017-02-23 16:57:19 -05:00
scsi_transport_srp.c scsi: Protect SCSI device state changes with a mutex 2017-06-12 20:55:59 -04:00
scsi_typedefs.h
scsi.c scsi: Only add commands to the device command list if required by the LLD 2017-06-12 20:55:59 -04:00
scsi.h
scsicam.c
sd_dif.c scsi: sd: Move DIF protection types to t10-pi.h 2016-09-15 09:51:14 -04:00
sd_zbc.c SCSI misc on 20170503 2017-05-04 12:19:44 -07:00
sd.c scsi: sd: Use sysfs_match_string() 2017-06-26 15:00:58 -04:00
sd.h SCSI misc on 20170503 2017-05-04 12:19:44 -07:00
sense_codes.h scsi: move Additional Sense Codes to separate file 2016-04-11 16:57:09 -04:00
ses.c scsi: ses: don't get power status of SES device slot on probe 2017-04-06 12:48:05 -04:00
sg.c scsi: sg: don't return bogus Sg_requests 2017-05-11 23:14:36 -04:00
sgiwd93.c scsi: sgiwd93: switch to dma_alloc_attrs 2017-06-26 15:01:06 -04:00
sim710.c scsi: sim710: fix build warning 2016-02-23 21:27:02 -05:00
sni_53c710.c scsi: remove incorrect __exit markups 2017-03-15 19:27:46 -04:00
sr_ioctl.c scsi: merge __scsi_execute into scsi_execute 2017-02-23 16:57:19 -05:00
sr_vendor.c
sr.c scsi: sr: Sanity check returned mode data 2017-04-07 17:07:14 -04:00
sr.h
st_options.h
st.c scsi: introduce a result field in struct scsi_request 2017-04-20 12:16:10 -06:00
st.h
stex.c scsi: stex: make S6flag static 2017-04-26 18:32:29 -04:00
storvsc_drv.c scsi: storvsc: use default I/O timeout handler for FC devices 2017-06-26 12:33:26 -04:00
sun3_scsi_vme.c
sun3_scsi.c SCSI misc on 20170220 2017-02-21 11:51:42 -08:00
sun3x_esp.c
sun_esp.c
sym53c416.c
sym53c416.h
virtio_scsi.c scsi: virtio_scsi: let host do exception handling 2017-06-26 15:01:00 -04:00
vmw_pvscsi.c scsi: vmw_pvscsi: handle the return value from pci_alloc_irq_vectors correctly 2017-03-06 22:27:33 -05:00
vmw_pvscsi.h scsi: vmw_pvscsi: switch to pci_alloc_irq_vectors 2017-01-11 22:31:03 -05:00
wd33c93.c
wd33c93.h
wd719x.c drivers/scsi/wd719x.c: remove last declaration using DEFINE_PCI_DEVICE_TABLE 2016-09-01 17:52:01 -07:00
wd719x.h
xen-scsifront.c scsi: xen-scsifront: Remove code that zeroes driver-private command data 2017-06-12 21:02:04 -04:00
zalon.c scsi: remove incorrect __exit markups 2017-03-15 19:27:46 -04:00
zorro7xx.c