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46e8e475a1
linux_dsm_epyc7002/drivers/scsi
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Ming Lei 46e8e475a1 scsi: lpfc: use sg helper to iterate over scatterlist 
Unlike the legacy I/O path, scsi-mq preallocates a large array to hold
the scatterlist for each request. This static allocation can consume
substantial amounts of memory on modern controllers which support a
large number of concurrently outstanding requests.

To facilitate a switch to a smaller static allocation combined with a
dynamic allocation for requests that need it, we need to make sure all
SCSI drivers handle chained scatterlists correctly.

Convert remaining drivers that directly dereference the scatterlist
array to using the iterator functions.

[mkp: clarified commit message]

Reviewed by: Ewan D. Milne <emilne@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-06-20 14:39:21 -04:00
..
aacraid scsi: aacraid: Insure we don't access PCIe space during AER/EEH 2019-03-25 22:19:01 -04:00
aic7xxx SCSI misc on 20190507 2019-05-08 10:12:46 -07:00
aic94xx scsi: aic94xx: fix calls to dma_set_mask_and_coherent() 2019-02-25 21:37:26 -05:00
arcmsr scsi: arcmsr: Update driver version to v1.40.00.10-20190116 2019-01-22 21:38:21 -05:00
arm scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
be2iscsi SCSI misc on 20190507 2019-05-08 10:12:46 -07:00
bfa Wimplicit-fallthrough patches for 5.2-rc1 2019-05-07 12:48:10 -07:00
bnx2fc SCSI misc on 20190507 2019-05-08 10:12:46 -07:00
bnx2i drivers: Remove explicit invocations of mmiowb() 2019-04-08 12:01:02 +01:00
csiostor SCSI misc on 20190507 2019-05-08 10:12:46 -07:00
cxgbi scsi: cxgb4i: fix incorrect spelling "reveive" -> "receive" 2019-04-15 22:15:06 -04:00
cxlflash SCSI misc on 20190306 2019-03-09 16:53:47 -08:00
device_handler scsi: return blk_status_t from device handler ->prep_fn 2018-11-09 19:17:14 -07:00
dpt
esas2r scsi: ata: Use unsigned int for cmd's type in ioctls in scsi_host_template 2019-02-08 17:33:00 -05:00
fcoe scsi: fcoe: make use of fip_mode enum complete 2019-02-19 18:58:38 -05:00
fnic scsi: fnic: Remove set but not used variable 'vdev' 2019-01-29 01:16:09 -05:00
hisi_sas scsi: hisi_sas: Some misc tidy-up 2019-04-12 21:30:12 -04:00
ibmvscsi scsi: ibmvfc: Clean up transport events 2019-03-27 21:34:20 -04:00
ibmvscsi_tgt scsi: target/core: Remove the write_pending_status() callback function 2019-02-04 21:23:59 -05:00
isci scsi: isci: initialize shost fully before calling scsi_add_host() 2019-01-08 22:27:24 -05:00
libfc Revert "scsi: fcoe: clear FC_RP_STARTED flags when receiving a LOGO" 2019-04-18 20:40:00 -04:00
libsas scsi: libsas: Print expander PHY indexes in decimal 2019-04-15 18:55:01 -04:00
lpfc scsi: lpfc: use sg helper to iterate over scatterlist 2019-06-20 14:39:21 -04:00
megaraid SCSI misc on 20190507 2019-05-08 10:12:46 -07:00
mpt3sas SCSI misc on 20190507 2019-05-08 10:12:46 -07:00
mvsas scsi: mvsas: clean up a few indentation issues 2019-03-19 17:13:37 -04:00
pcmcia scsi: pcmcia: nsp_cs: Remove unnecessary parentheses 2019-01-29 01:28:49 -05:00
pm8001 scsi: pm8001: fix spelling mistake, interupt -> interrupt 2019-04-03 23:45:59 -04:00
qedf scsi: qedf: remove set but not used variables 2019-04-29 08:34:10 -04:00
qedi SCSI misc on 20190507 2019-05-08 10:12:46 -07:00
qla2xxx scsi: qla2xxx: Avoid that lockdep complains about unsafe locking in tcm_qla2xxx_close_session() 2019-04-29 17:24:52 -04:00
qla4xxx Merge branch '5.1/scsi-fixes' into 5.2/merge 2019-04-12 21:27:23 -04:00
smartpqi scsi: smartpqi: Use HCTX_TYPE_DEFAULT for blk_mq_tag_set->map 2019-03-19 15:29:10 -04:00
snic scsi: snic: no need to check return value of debugfs_create functions 2019-01-29 00:40:54 -05:00
sym53c8xx_2 scsi: sym53c8xx_2: sym_nvram: Mark expected switch fall-through 2019-04-08 18:39:14 -05:00
ufs SCSI misc on 20190507 2019-05-08 10:12:46 -07:00
.gitignore
3w-9xxx.c scsi: 3w-9xxx: fix calls to dma_set_mask_and_coherent() 2019-02-25 21:37:25 -05:00
3w-9xxx.h
3w-sas.c SCSI fixes on 20190302 2019-03-02 11:39:54 -08:00
3w-sas.h
3w-xxxx.c scsi: 3w-xxxx: fix indentation issue, add missing tab 2018-12-19 21:54:07 -05:00
3w-xxxx.h scsi: 3w-xxx: fully convert to the generic DMA API 2018-10-17 21:58:51 -04:00
53c700_d.h_shipped
53c700.c scsi: 53c700: pass correct "dev" to dma_alloc_attrs() 2019-01-29 01:33:00 -05:00
53c700.h scsi: 53c700: Fix spelling of 'NEGOTIATION' 2018-08-30 07:27:22 -04:00
53c700.scr
a100u2w.c cross-tree: phase out dma_zalloc_coherent() 2019-01-08 07:58:37 -05:00
a100u2w.h
a2091.c scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
a2091.h
a3000.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
a3000.h
a4000t.c
advansys.c scsi: advansys: use sg helper to iterate over scatterlist 2019-06-20 14:39:21 -04:00
aha152x.c scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
aha152x.h
aha1542.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
aha1542.h
aha1740.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
aha1740.h scsi: core: remove Scsi_Cmnd typedef 2018-06-19 22:02:25 -04:00
am53c974.c scsi: esp_scsi: move dma mapping into the core code 2018-10-15 23:00:38 -04:00
atari_scsi.c nvram: Replace nvram_* function exports with static functions 2019-01-22 10:21:43 +01:00
atp870u.c scsi: atp870u: clean up code style and indentation issues 2019-03-19 17:08:35 -04:00
atp870u.h
BusLogic.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
BusLogic.h
bvme6000_scsi.c
ch.c scsi: core: check for equality of result byte values 2018-06-26 12:27:06 -04:00
constants.c
dc395x.c scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
dc395x.h
dmx3191d.c scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
dpt_i2o.c scsi: dpt_i2o: clean up indentation issues, remove spaces 2019-03-19 17:10:34 -04:00
dpti.h scsi: dpt_i2o: stop using scsi_unregister 2018-03-15 00:25:37 -04:00
esp_scsi.c treewide: Switch printk users from %pf and %pF to %ps and %pS, respectively 2019-04-09 14:19:06 +02:00
esp_scsi.h scsi: esp_scsi: De-duplicate PIO routines 2018-10-17 21:38:20 -04:00
FlashPoint.c scsi: FlashPoint: Remove unnecessary parentheses 2018-09-25 20:45:53 -04:00
g_NCR5380.c scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
gdth_ioctl.h scsi: gdth: remove dead code under #ifdef GDTH_IOCTL_PROC 2019-01-08 21:58:35 -05:00
gdth_proc.c scsi: gdth: use generic DMA API 2019-01-08 21:58:35 -05:00
gdth_proc.h scsi: gdth: remove gdth_{alloc,free}_ioctl 2019-01-08 21:57:42 -05:00
gdth.c scsi: gdth: Only call dma_free_coherent when buf is not NULL in ioc_general 2019-03-25 22:22:44 -04:00
gdth.h scsi: gdth: remove ISA and EISA support 2019-01-08 21:58:35 -05:00
gvp11.c scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
gvp11.h
hosts.c SCSI misc on 20181224 2018-12-28 14:48:06 -08:00
hpsa_cmd.h
hpsa.c scsi: hpsa: bump driver version 2019-03-18 16:46:14 -04:00
hpsa.h scsi: hpsa: correct enclosure sas address 2018-07-10 22:25:03 -04:00
hptiop.c scsi: hptiop: fix calls to dma_set_mask() 2019-02-25 21:44:40 -05:00
hptiop.h
imm.c scsi: imm: mark expected switch fall-throughs 2019-04-08 18:37:37 -05:00
imm.h
initio.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
initio.h
ipr.c scsi: ata: Use unsigned int for cmd's type in ioctls in scsi_host_template 2019-02-08 17:33:00 -05:00
ipr.h scsi: ipr: System hung while dlpar adding primary ipr adapter back 2018-09-21 12:35:39 -04:00
ips.c scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
ips.h scsi: ips: properly handle 64-bit DMA 2018-11-06 21:31:28 -05:00
iscsi_boot_sysfs.c
iscsi_tcp.c scsi: remove bidirectional command support 2019-02-05 21:29:21 -05:00
iscsi_tcp.h
jazz_esp.c scsi: esp_scsi: move dma mapping into the core code 2018-10-15 23:00:38 -04:00
Kconfig SCSI misc on 20190306 2019-03-09 16:53:47 -08:00
lasi700.c
libiscsi_tcp.c scsi: libiscsi: fall back to sendmsg for slab pages 2019-03-06 19:26:45 -05:00
libiscsi.c SCSI misc on 20190315 2019-03-16 12:51:50 -07:00
mac53c94.c scsi: mac53c94: remove DISABLE_CLUSTERING 2018-12-18 23:13:12 -05:00
mac53c94.h
mac_esp.c scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
mac_scsi.c scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
Makefile scsi: remove the SCSI OSD library 2019-02-05 21:28:52 -05:00
megaraid.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
megaraid.h scsi: core: remove Scsi_Cmnd typedef 2018-06-19 22:02:25 -04:00
mesh.c cross-tree: phase out dma_zalloc_coherent() 2019-01-08 07:58:37 -05:00
mesh.h
mvme16x_scsi.c
mvme147.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
mvme147.h
mvumi.c scsi: mvumi: Stop using plain integer as NULL pointer 2019-03-19 17:46:16 -04:00
mvumi.h
myrb.c SCSI misc on 20181224 2018-12-28 14:48:06 -08:00
myrb.h scsi: myrb: Add Mylex RAID controller (block interface) 2018-10-17 21:06:49 -04:00
myrs.c scsi: myrs: remove the dma_boundary_limit 2018-12-19 21:43:30 -05:00
myrs.h scsi: myrs: Add Mylex RAID controller (SCSI interface) 2018-10-17 21:07:54 -04:00
ncr53c8xx.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
ncr53c8xx.h
NCR5380.c scsi: NCR5380: Remove set but unused variable 2019-03-19 14:18:46 -04:00
NCR5380.h scsi: NCR5380: Have NCR5380_select() return a bool 2018-09-28 02:17:51 -04:00
nsp32_debug.c scsi: core: remove Scsi_Cmnd typedef 2018-06-19 22:02:25 -04:00
nsp32_io.h
nsp32.c scsi: nsp32: Remove unnecessary self assignment in nsp32_set_sync_entry 2019-01-29 01:26:57 -05:00
nsp32.h
osst_detect.h
osst_options.h
osst.c scsi: osst: mark expected switch fall-throughs 2019-04-08 18:38:59 -05:00
osst.h
pmcraid.c Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
pmcraid.h scsi: pmcraid: Use sgl_alloc_order() and sgl_free_order() 2018-02-13 21:49:15 -05:00
ppa.c scsi: ppa: mark expected switch fall-through 2019-04-08 18:39:04 -05:00
ppa.h
ps3rom.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
qla1280.c scsi/qla1280: Remove stale comment about mmiowb() 2019-04-08 12:09:05 +01:00
qla1280.h
qlogicfas408.c scsi: qlogicfas408: clean up a couple of indentation issues 2019-03-19 17:11:37 -04:00
qlogicfas408.h
qlogicfas.c scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
qlogicpti.c scsi: qlogicpti: Use of_node_name_eq for node name comparisons 2019-02-13 22:07:03 -05:00
qlogicpti.h scsi: qlogicpti: Use of_node_name_eq for node name comparisons 2019-02-13 22:07:03 -05:00
raid_class.c scsi: raid_attrs: fix unused variable warning 2018-08-30 07:21:04 -04:00
script_asm.pl
scsi_common.c
scsi_debug.c SCSI misc on 20190306 2019-03-09 16:53:47 -08:00
scsi_debugfs.c scsi: devinfo: use const_ilog2 for array indices 2018-04-20 19:14:28 -04:00
scsi_debugfs.h
scsi_devinfo.c scsi: core: add new RDAC LENOVO/DE_Series device 2019-04-03 23:27:23 -04:00
scsi_dh.c scsi: core: add new RDAC LENOVO/DE_Series device 2019-04-03 23:27:23 -04:00
scsi_error.c scsi: core: remove the scsi_ioctl_reset export 2019-03-19 14:02:18 -04:00
scsi_ioctl.c Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
scsi_lib_dma.c
scsi_lib.c SCSI misc on 20190507 2019-05-08 10:12:46 -07:00
scsi_logging.c
scsi_logging.h
scsi_netlink.c
scsi_pm.c scsi: sd: Revert "Rely on the driver core for asynchronous probing" 2019-04-29 17:13:12 -04:00
scsi_priv.h scsi: sd: Revert "Rely on the driver core for asynchronous probing" 2019-04-29 17:13:12 -04:00
scsi_proc.c
scsi_sas_internal.h
scsi_scan.c scsi: core: map PQ=1, PDT=other values to SCSI_SCAN_TARGET_PRESENT 2019-04-15 22:25:00 -04:00
scsi_sysctl.c
scsi_sysfs.c scsi: core: Run queue when state is set to running after being blocked 2019-03-27 21:21:07 -04:00
scsi_trace.c
scsi_transport_api.h
scsi_transport_fc.c scsi: scsi_transport_fc: nvme: display FC-NVMe port roles 2019-04-12 20:09:34 -04:00
scsi_transport_iscsi.c scsi: iscsi: flush running unbind operations when removing a session 2019-03-18 16:55:48 -04:00
scsi_transport_sas.c scsi: bsg-lib: handle bidi requests without block layer help 2019-02-05 21:27:40 -05:00
scsi_transport_spi.c scsi: core: check for equality of result byte values 2018-06-26 12:27:06 -04:00
scsi_transport_srp.c for-4.18/block-20180603 2018-06-04 07:58:06 -07:00
scsi.c scsi: sd: Revert "Rely on the driver core for asynchronous probing" 2019-04-29 17:13:12 -04:00
scsi.h scsi: core: remove Scsi_Cmnd typedef 2018-06-19 22:02:25 -04:00
scsicam.c
sd_dif.c block: move dif_prepare/dif_complete functions to block layer 2018-07-30 08:27:02 -06:00
sd_zbc.c scsi: sd_zbc: Fix sd_zbc_report_zones() buffer allocation 2019-02-15 22:09:54 -05:00
sd.c scsi: sd: Revert "Rely on the driver core for asynchronous probing" 2019-04-29 17:13:12 -04:00
sd.h scsi: sd: Fix typo in sd_first_printk() 2019-02-12 22:33:00 -05:00
sense_codes.h
ses.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
sg.c Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
sgiwd93.c scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
sim710.c
sni_53c710.c
sr_ioctl.c block: Switch struct packet_command to use struct scsi_sense_hdr 2018-08-02 15:22:13 -06:00
sr_vendor.c
sr.c block: disk_events: introduce event flags 2019-04-12 13:35:24 -06:00
sr.h
st_options.h
st.c mm/gup: change GUP fast to use flags rather than a write 'bool' 2019-05-14 09:47:46 -07:00
st.h
stex.c scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
storvsc_drv.c scsi: storvsc: Reduce default ring buffer size to 128 Kbytes 2019-04-03 23:31:03 -04:00
sun3_scsi_vme.c
sun3_scsi.c scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
sun3x_esp.c scsi: esp_scsi: move dma mapping into the core code 2018-10-15 23:00:38 -04:00
sun_esp.c scsi: sun_esp: Use of_node_name_eq for node name comparisons 2018-12-07 21:56:06 -05:00
virtio_scsi.c SCSI misc on 20190507 2019-05-08 10:12:46 -07:00
vmw_pvscsi.c scsi: vmw_pscsi: use sg helper to iterate over scatterlist 2019-06-20 14:39:21 -04:00
vmw_pvscsi.h
wd33c93.c
wd33c93.h
wd719x.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
wd719x.h scsi: wd719x: use per-command private data 2018-11-15 14:27:08 -05:00
xen-scsifront.c scsi: xen-scsifront: remove DISABLE_CLUSTERING 2018-12-18 23:13:12 -05:00
zalon.c
zorro7xx.c
zorro_esp.c scsi: esp_scsi: De-duplicate PIO routines 2018-10-17 21:38:20 -04:00