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4552e0f6fa
linux/drivers/scsi
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James Smart 4552e0f6fa scsi: lpfc: Fix nvmet async receive buffer replenishment 
Under circustances with high load, the driver is running out of async
receive buffers which may result in one of the following messages:

0:6401 RQE Error x13, posted 226 err_cnt 0: 925c6050 925c604e 925c5d54

or

0:2885 Port Status Event: port status reg 0x81800000,
       port smphr reg 0xc000, error 1=0x52004a01, error 2=0x0

The driver is waiting for full io completion before returning receive
buffers to the adapter. There is no need for such a relationship.

Whenever a new command is received from the wire, the driver will have two
contexts - an io context (ctxp) and a receive buffer context.  In current
code, the receive buffer context stays 1:1 with the io and won't be
reposted to the hardware until the io completes. There is no need for such
a relationship.

Change the driver so that up on successful handing of the command to the
transport, where the transport has copied what it needed thus the buffer is
returned to the driver, have the driver immediately repost the buffer to
the hardware. If the command cannot be successfully handed to the transport
as transport resources are temporarily busy, have the driver allocate a new
and separate receive buffer and post it to the hardware so that hardware
can continue while the command is queued for the transport.

When an io is complete, the transport returns the io context to the driver,
and the driver may be waiting for more contexts, thus immediately reuse the
io context. In this path, there was a buffer posted when the receive buffer
was queued waiting for an io context so a replacement is not needed in the
new code additions. Thus, exempt this the context reuse case from the
buffer reposting.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-19 12:57:02 -04:00
..
aacraid SCSI misc on 20190315 2019-03-16 12:51:50 -07:00
aic7xxx scsi: remove unneeded header search paths 2019-01-29 01:22:21 -05:00
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 genirq/affinity: Add new callback for (re)calculating interrupt sets 2019-02-18 11:21:28 +01:00
bfa SCSI misc on 20190306 2019-03-09 16:53:47 -08:00
bnx2fc SCSI misc on 20190306 2019-03-09 16:53:47 -08:00
bnx2i SCSI misc on 20190306 2019-03-09 16:53:47 -08:00
csiostor SCSI misc on 20190306 2019-03-09 16:53:47 -08:00
cxgbi SCSI misc on 20190306 2019-03-09 16:53:47 -08:00
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 misc on 20190315 2019-03-16 12:51:50 -07:00
ibmvscsi scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
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: libfc: Add WARN_ON() when deleting rports" 2019-02-04 22:17:33 -05:00
libsas SCSI misc on 20190306 2019-03-09 16:53:47 -08:00
lpfc scsi: lpfc: Fix nvmet async receive buffer replenishment 2019-03-19 12:57:02 -04:00
megaraid SCSI misc on 20190315 2019-03-16 12:51:50 -07:00
mpt3sas scsi: mpt3sas: Update mpt3sas driver version to 28.100.00.00 2019-03-18 17:16:44 -04:00
mvsas scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
pcmcia scsi: pcmcia: nsp_cs: Remove unnecessary parentheses 2019-01-29 01:28:49 -05:00
pm8001 SCSI fixes on 20190118 2019-01-20 09:15:04 +12:00
qedf SCSI misc on 20190306 2019-03-09 16:53:47 -08:00
qedi SCSI misc on 20190306 2019-03-09 16:53:47 -08:00
qla2xxx scsi: qla2xxx: Update driver version to 10.01.00.15-k 2019-03-19 12:22:55 -04:00
qla4xxx SCSI misc on 20190306 2019-03-09 16:53:47 -08:00
smartpqi scsi: smartpqi: bump driver version 2019-03-18 16:48:29 -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: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
ufs SCSI misc on 20190315 2019-03-16 12:51:50 -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: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
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: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
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: remove serial number usage 2019-02-27 09:19:23 -05:00
dpti.h scsi: dpt_i2o: stop using scsi_unregister 2018-03-15 00:25:37 -04:00
esp_scsi.c scsi: flip the default on use_clustering 2018-12-18 23:13:12 -05:00
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: use generic DMA API 2019-01-08 21:58:35 -05:00
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: flip the default on use_clustering 2018-12-18 23:13:12 -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 misc on 20190306 2019-03-09 16:53:47 -08:00
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: Return false instead of NULL 2018-11-05 22:47:38 -05:00
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: st: osst: Remove negative constant left-shifts 2019-02-27 09:10:16 -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: flip the default on use_clustering 2018-12-18 23:13:12 -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: set 64bit coherent mask 2019-01-11 22:30:51 -05:00
qla1280.h
qlogicfas408.c
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: devinfo: BLIST_RETRY_ASC_C1 for Fujitsu ETERNUS 2018-04-20 19:14:36 -04:00
scsi_dh.c scsi: scsi_dh: replace too broad "TP9" string with the exact models 2018-04-18 19:34:08 -04:00
scsi_error.c scsi: remove bidirectional command support 2019-02-05 21:29:21 -05:00
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 20190306 2019-03-09 16:53:47 -08:00
scsi_logging.c
scsi_logging.h
scsi_netlink.c
scsi_pm.c scsi: core: Synchronize request queue PM status only on successful resume 2019-01-08 21:57:26 -05:00
scsi_priv.h scsi: kill off the legacy IO path 2018-11-07 13:42:32 -07:00
scsi_proc.c
scsi_sas_internal.h
scsi_scan.c scsi: core: replace GFP_ATOMIC with GFP_KERNEL in scsi_scan.c 2019-02-27 09:39:28 -05:00
scsi_sysctl.c
scsi_sysfs.c scsi: kill off the legacy IO path 2018-11-07 13:42:32 -07:00
scsi_trace.c
scsi_transport_api.h
scsi_transport_fc.c bsg: convert to use blk-mq 2018-11-07 13:42:32 -07:00
scsi_transport_iscsi.c SCSI misc on 20181224 2018-12-28 14:48:06 -08:00
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: kill command serial number 2019-02-27 09:19:24 -05:00
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 misc on 20190306 2019-03-09 16:53:47 -08:00
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 scsi: stop setting up request->special 2019-02-05 21:29:49 -05:00
sr.h
st_options.h
st.c scsi: st: osst: Remove negative constant left-shifts 2019-02-27 09:10:16 -05:00
st.h
stex.c scsi: remove the use_clustering flag 2018-12-18 23:19:21 -05:00
storvsc_drv.c SCSI misc on 20181224 2018-12-28 14:48:06 -08:00
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: virtio_scsi: don't send sc payload with tmfs 2019-03-06 12:35:02 -05:00
vmw_pvscsi.c SCSI misc on 20181224 2018-12-28 14:48:06 -08:00
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