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bc93d425fc
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Sumit.Saxena@lsi.com bc93d425fc [SCSI] megaraid_sas: Add support for Uneven Span PRL11 
MegaRAID older Firmware does not support uneven span configuration for PRL11.
E.g User wants to create 34 Driver PRL11 config, it was not possible using old
firmware, since it was not supported configuration in old firmware

Old Firmware expect even number of Drives in each span and same number of
physical drives at each span.  Considering above design, 17 Drives at Span-0
and 17 drives at span-1 was not possible.

Now, using this new feature Firmware and Driver both required changes.  New
Firmware can allow user to create 16 Drives at span-0 and 18 Drives at
span-1. This will allow user to create 34 Drives Uneven span PRL11.

RAID map is interface between Driver and FW to fetch all required
fields(attributes) for each Virtual Drives.  Since legacy RAID map consider
Even Span design, there was no place to keep Uneven span information in
existing Raid map.  Because of this limitation, for Uneven span VD, driver can
not use RAID map.

This patch address the changes required in Driver to support Uneven span PRL11
support.

1. Driver will find if Firmware has UnevenSpanSupport or not by reading
   Controller Info.
2. If Firmware has UnvenSpan PRL11 support, then Driver will inform about its
   capability of handling UnevenSpan PRL11 to the firmware.
3. Driver will update its copy of span info on each time Raid map update is
   called.
4. Follow different IO path if it is Uneven Span. (For Uneven Span, Driver
   uses Span Set info to find relavent fields for that particular Virtual
   Disk)

More verbose prints will be available by setting "SPAN_DEBUG" to 1 at
compilation time.

Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 17:48:12 -07:00
..
aacraid [SCSI] aacraid: Dual firmware image support 2013-04-10 11:55:52 -07:00
aic7xxx aic7xxx: switch to ->show_info() 2013-04-09 14:13:26 -04:00
aic7xxx_old aix7xxx_old: switch to ->show_info() 2013-04-09 14:13:28 -04:00
aic94xx [SCSI] libsas: implement > 16 byte CDB support 2013-06-04 11:15:59 -07:00
arcmsr workqueue: deprecate flush[_delayed]_work_sync() 2012-08-20 14:51:24 -07:00
arm acornscsi: switch to ->show_info() 2013-04-09 14:13:27 -04:00
be2iscsi [SCSI] be2iscsi: Bump the driver version to 10.0.467.0 2013-05-02 08:22:19 -07:00
bfa [SCSI] bfa: fix for FC Direct Attach LUN discovery failure 2013-06-04 11:16:27 -07:00
bnx2fc [SCSI] bnx2fc: Bumped version to 1.0.14 2013-05-02 07:32:26 -07:00
bnx2i treewide: Fix typo in printk and comments 2013-04-24 16:43:00 +02:00
csiostor [SCSI] csiostor: Retain default adapter configuration in absence of config file. 2013-06-04 11:16:28 -07:00
cxgbi [SCSI] cxgb4i: Remove the scsi host device when removing device 2013-01-30 11:58:06 +11:00
device_handler [SCSI] scsi_dh_alua: Add module parameter to allow failover to non preferred path without STPG 2013-04-11 16:00:31 -07:00
dpt atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
fcoe Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2013-05-01 14:08:52 -07:00
fnic [SCSI] fnic: Incremented driver version 2013-05-02 07:32:24 -07:00
ibmvscsi [SCSI] ibmvfc: Driver version 1.0.11 2013-05-02 11:58:18 -07:00
isci [SCSI] libsas: implement > 16 byte CDB support 2013-06-04 11:15:59 -07:00
libfc libfc, fcoe, bnx2fc: Split fc_disc_init into fc_disc_{init, config} 2013-03-25 16:03:03 -07:00
libsas [SCSI] libsas: implement > 16 byte CDB support 2013-06-04 11:15:59 -07:00
lpfc Merge branch 'misc' into for-linus 2013-05-10 07:53:40 -07:00
megaraid [SCSI] megaraid_sas: Add support for Uneven Span PRL11 2013-06-24 17:48:12 -07:00
mpt2sas [SCSI] mpt2sas: fix for unused variable 'event_data' warning 2013-06-24 12:55:34 -07:00
mpt3sas Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-05-01 17:51:54 -07:00
mvsas [SCSI] libsas: implement > 16 byte CDB support 2013-06-04 11:15:59 -07:00
osd treewide: Fix typos in kernel messages 2013-03-31 17:50:31 +02:00
pcmcia nsp_cs: switch to ->show_info() 2013-04-09 14:13:21 -04:00
pm8001 [SCSI] pm80xx: remove unneeded NULL check 2013-06-04 11:16:18 -07:00
qla2xxx Merge branch 'misc' into for-linus 2013-05-10 07:53:40 -07:00
qla4xxx [SCSI] iscsi class, qla4xxx: fix sess/conn refcounting when find fns are used 2013-05-10 07:47:53 -07:00
sym53c8xx_2 sym53c8xx_2: switch to ->show_info() 2013-04-09 14:13:15 -04:00
ufs [SCSI] ufs: SCSI_UFSHCD should depend on SCSI_DMA 2013-06-04 11:16:20 -07:00
.gitignore
3w-9xxx.c new helper: file_inode(file) 2013-02-22 23:31:31 -05:00
3w-9xxx.h
3w-sas.c new helper: file_inode(file) 2013-02-22 23:31:31 -05:00
3w-sas.h
3w-xxxx.c [SCSI] 3w-xxxx: Create sense buffer for unsupported commands 2013-06-24 16:32:22 -07:00
3w-xxxx.h
53c700_d.h_shipped
53c700.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
53c700.h
53c700.scr
a100u2w.c Drivers: scsi: remove __dev* attributes. 2013-01-03 15:57:01 -08:00
a100u2w.h
a2091.c switch wd33c93 to ->show_info() 2013-04-09 14:13:15 -04:00
a2091.h
a3000.c switch wd33c93 to ->show_info() 2013-04-09 14:13:15 -04:00
a3000.h
a4000t.c
advansys.c advansys: fix buggered formats - unsigned long != u32 on 64bit 2013-04-09 14:13:22 -04:00
aha152x.c aha152x: switch to ->show_info() 2013-04-09 14:13:22 -04:00
aha152x.h
aha1542.c treewide: Put a space between #include and FILE 2012-06-28 11:44:36 +02:00
aha1542.h
aha1740.c aha1740: switch to ->show_info() 2013-04-09 14:13:23 -04:00
aha1740.h
aic7xxx_old.c aix7xxx_old: switch to ->show_info() 2013-04-09 14:13:28 -04:00
atari_NCR5380.c atari_scsi: switch to ->show_info() 2013-04-09 14:13:29 -04:00
atari_scsi.c atari_scsi: switch to ->show_info() 2013-04-09 14:13:29 -04:00
atari_scsi.h atari_scsi: switch to ->show_info() 2013-04-09 14:13:29 -04:00
atp870u.c atp870u: switch to ->show_info() 2013-04-09 14:13:24 -04:00
atp870u.h
BusLogic.c BusLogic: switch to ->show_info() 2013-04-09 14:13:19 -04:00
BusLogic.h BusLogic: switch to ->show_info() 2013-04-09 14:13:19 -04:00
bvme6000_scsi.c Drivers: scsi: remove __dev* attributes. 2013-01-03 15:57:01 -08:00
ch.c scsi: convert to idr_alloc() 2013-02-27 19:10:18 -08:00
constants.c [SCSI] add DID_TARGET_FAILURE and DID_NEXUS_FAILURE to hostbyte_table in constants.c 2012-09-14 11:58:53 +01:00
dc395x.c dc395x: switch to ->show_info() 2013-04-09 14:13:24 -04:00
dc395x.h
dmx3191d.c Drivers: scsi: remove __dev* attributes. 2013-01-03 15:57:01 -08:00
dpt_i2o.c dpt_i2o: switch to ->show_info() 2013-04-09 14:13:24 -04:00
dpti.h
dtc.c NCR5830: switch to ->show_info() 2013-04-09 14:13:17 -04:00
dtc.h NCR5830: switch to ->show_info() 2013-04-09 14:13:17 -04:00
eata_generic.h
eata_pio.c eata_pio: switch to ->show_info() 2013-04-09 14:13:23 -04:00
eata_pio.h
eata.c
esp_scsi.c scsi: Use vsprintf extention %pf with builtin_return_address 2012-04-05 17:09:40 -07:00
esp_scsi.h
fdomain.c Drivers: scsi: remove __dev* attributes. 2013-01-03 15:57:01 -08:00
fdomain.h
FlashPoint.c
g_NCR5380_mmio.c
g_NCR5380.c NCR5830: switch to ->show_info() 2013-04-09 14:13:17 -04:00
g_NCR5380.h
gdth_ioctl.h
gdth_proc.c gdth: switch to ->show_info() 2013-04-09 14:13:16 -04:00
gdth_proc.h gdth: switch to ->show_info() 2013-04-09 14:13:16 -04:00
gdth.c gdth: switch to ->show_info() 2013-04-09 14:13:16 -04:00
gdth.h gdth: switch to ->show_info() 2013-04-09 14:13:16 -04:00
gvp11.c switch wd33c93 to ->show_info() 2013-04-09 14:13:15 -04:00
gvp11.h
hosts.c driver-core: constify data for class_find_device() 2013-02-06 12:18:56 -08:00
hpsa_cmd.h [SCSI] hpsa: dial down lockup detection during firmware flash 2012-05-10 09:19:39 +01:00
hpsa.c [SCSI] hpsa: check for dma_mapping_error in hpsa_passthru ioctls 2013-02-24 09:36:58 +00:00
hpsa.h [SCSI] hpsa: dial down lockup detection during firmware flash 2012-05-10 09:19:39 +01:00
hptiop.c Drivers: scsi: remove __dev* attributes. 2013-01-03 15:57:01 -08:00
hptiop.h [SCSI] hptiop: Support HighPoint RR4520/RR4522 HBA 2012-11-27 08:59:43 +04:00
imm.c imm: switch to ->show_info() 2013-04-09 14:13:16 -04:00
imm.h
in2000.c in2000: switch to ->show_info() 2013-04-09 14:13:25 -04:00
in2000.h
initio.c Drivers: scsi: remove __dev* attributes. 2013-01-03 15:57:01 -08:00
initio.h
ipr.c [SCSI] ipr: Avoid target_destroy accessing memory after it was freed 2013-06-04 11:16:22 -07:00
ipr.h [SCSI] ipr: Avoid target_destroy accessing memory after it was freed 2013-06-04 11:16:22 -07:00
ips.c ips: fix format bugs exposed by previous commit 2013-04-09 14:13:27 -04:00
ips.h ips: switch to ->show_info() 2013-04-09 14:13:27 -04:00
iscsi_boot_sysfs.c switch ->is_visible() to returning umode_t 2012-01-03 22:54:55 -05:00
iscsi_tcp.c [SCSI] iscsi_tcp: support PF_MEMALLOC/__GFP_MEMALLOC 2013-04-11 16:55:04 -07:00
iscsi_tcp.h
jazz_esp.c Drivers: scsi: remove __dev* attributes. 2013-01-03 15:57:01 -08:00
Kconfig [SCSI] lpfc: fix up Kconfig dependencies 2013-05-10 07:47:44 -07:00
lasi700.c Drivers: scsi: remove __dev* attributes. 2013-01-03 15:57:01 -08:00
libiscsi_tcp.c SCSI updates on 20120319 2012-03-22 12:55:29 -07:00
libiscsi.c [SCSI] libiscsi: avoid unnecessary multiple NULL assignments 2013-04-11 16:54:01 -07:00
libsrp.c scsi: Fix up files implicitly depending on module.h inclusion 2011-10-31 19:31:24 -04:00
mac53c94.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
mac53c94.h
mac_esp.c Drivers: scsi: remove __dev* attributes. 2013-01-03 15:57:01 -08:00
mac_scsi.c NCR5830: switch to ->show_info() 2013-04-09 14:13:17 -04:00
mac_scsi.h NCR5830: switch to ->show_info() 2013-04-09 14:13:17 -04:00
Makefile [SCSI] mpt3sas: add new driver supporting 12GB SAS 2012-12-01 10:09:17 +00:00
megaraid.c megaraid: single_open() leak 2013-05-05 00:15:15 -04:00
megaraid.h megaraid: Don't use create_proc_read_entry() 2013-04-29 15:41:57 -04:00
mesh.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
mesh.h
mvme16x_scsi.c Drivers: scsi: remove __dev* attributes. 2013-01-03 15:57:01 -08:00
mvme147.c switch wd33c93 to ->show_info() 2013-04-09 14:13:15 -04:00
mvme147.h
mvumi.c [SCSI] mvumi: Use PCI_VENDOR_ID_MARVELL_EXT for 0x1b4b 2013-04-15 14:30:44 -06:00
mvumi.h [SCSI] mvumi: Use PCI_VENDOR_ID_MARVELL_EXT for 0x1b4b 2013-04-15 14:30:44 -06:00
ncr53c8xx.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
ncr53c8xx.h
NCR53c406a.c
NCR5380.c NCR5830: switch to ->show_info() 2013-04-09 14:13:17 -04:00
NCR5380.h NCR5830: switch to ->show_info() 2013-04-09 14:13:17 -04:00
NCR_D700.c Drivers: scsi: remove __dev* attributes. 2013-01-03 15:57:01 -08:00
NCR_D700.h
NCR_Q720.c Drivers: scsi: remove __dev* attributes. 2013-01-03 15:57:01 -08:00
NCR_Q720.h
nsp32_debug.c
nsp32_io.h
nsp32.c nsp32: switch to ->show_info() 2013-04-09 14:13:21 -04:00
nsp32.h
osst_detect.h
osst_options.h
osst.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
osst.h
pas16.c NCR5830: switch to ->show_info() 2013-04-09 14:13:17 -04:00
pas16.h NCR5830: switch to ->show_info() 2013-04-09 14:13:17 -04:00
pmcraid.c pmcraid: don't wank with fasync in ->release() 2013-04-29 15:41:45 -04:00
pmcraid.h scsi: Fix typo in pmcraid.h 2012-02-21 11:40:37 +01:00
ppa.c ppa: switch to ->show_info() 2013-04-09 14:13:17 -04:00
ppa.h
ps3rom.c Drivers: scsi: remove __dev* attributes. 2013-01-03 15:57:01 -08:00
qla1280.c Drivers: scsi: remove __dev* attributes. 2013-01-03 15:57:01 -08:00
qla1280.h
qlogicfas408.c
qlogicfas408.h
qlogicfas.c Drivers: scsi: remove __dev* attributes. 2013-01-03 15:57:01 -08:00
qlogicpti.c Drivers: scsi: remove __dev* attributes. 2013-01-03 15:57:01 -08:00
qlogicpti.h
raid_class.c
script_asm.pl
scsi_debug.c Merge branch 'misc' into for-linus 2013-05-10 07:53:40 -07:00
scsi_devinfo.c [SCSI] Workaround for disks that report bad optimal transfer length 2013-06-24 13:00:10 -07:00
scsi_error.c [SCSI] Allow error handling timeout to be specified 2013-06-04 11:16:24 -07:00
scsi_ioctl.c
scsi_lib_dma.c scsi: Add export.h for EXPORT_SYMBOL/THIS_MODULE as required 2011-10-31 19:31:23 -04:00
scsi_lib.c [SCSI] sd: use REQ_PM in sd's runtime suspend operation 2013-05-06 12:48:17 -07:00
scsi_logging.h
scsi_module.c
scsi_netlink.c scsi: replace obsolete NLMSG_* with type safe nlmsg_* 2013-03-28 14:27:24 -04:00
scsi_pm.c [SCSI] sd: change to auto suspend mode 2013-05-06 12:48:31 -07:00
scsi_priv.h [SCSI] async: introduce 'async_domain' type 2012-07-20 09:05:54 +01:00
scsi_proc.c procfs: new helper - PDE_DATA(inode) 2013-04-09 14:13:32 -04:00
scsi_sas_internal.h
scsi_scan.c [SCSI] Workaround for disks that report bad optimal transfer length 2013-06-24 13:00:10 -07:00
scsi_sysctl.c
scsi_sysfs.c [SCSI] Allow error handling timeout to be specified 2013-06-04 11:16:24 -07:00
scsi_tgt_if.c scsi: Add export.h for EXPORT_SYMBOL/THIS_MODULE as required 2011-10-31 19:31:23 -04:00
scsi_tgt_lib.c
scsi_tgt_priv.h
scsi_trace.c
scsi_transport_api.h
scsi_transport_fc_internal.h
scsi_transport_fc.c scsi: replace obsolete NLMSG_* with type safe nlmsg_* 2013-03-28 14:27:24 -04:00
scsi_transport_iscsi.c [SCSI] iscsi class, qla4xxx: fix sess/conn refcounting when find fns are used 2013-05-10 07:47:53 -07:00
scsi_transport_sas.c [SCSI] scsi_transport_sas: add 12GB definitions for mpt3sas 2012-12-01 10:08:41 +00:00
scsi_transport_spi.c [SCSI] scsi_transport_spi: fix for unbalanced reference counting 2012-05-10 09:06:12 +01:00
scsi_transport_srp_internal.h
scsi_transport_srp.c IB/srp: Allow SRP disconnect through sysfs 2012-11-30 17:40:33 -08:00
scsi_typedefs.h
scsi.c [SCSI] Add a report opcode helper 2012-11-13 21:11:31 -08:00
scsi.h
scsicam.c fs: move code out of buffer.c 2012-01-03 22:54:07 -05:00
sd_dif.c [SCSI] sd_dif: problem with verify of type 1 protection information (PI) 2013-05-02 15:37:03 -07:00
sd.c [SCSI] sd: avoid deadlocks when running under multipath 2013-06-04 11:16:23 -07:00
sd.h [SCSI] sd: fix array cache flushing bug causing performance problems 2013-05-02 16:15:54 -07:00
ses.c
sg.c aio: don't include aio.h in sched.h 2013-05-07 20:16:25 -07:00
sgiwd93.c Drivers: scsi: remove __dev* attributes. 2013-01-03 15:57:01 -08:00
sim710.c Drivers: scsi: remove __dev* attributes. 2013-01-03 15:57:01 -08:00
sni_53c710.c Drivers: scsi: remove __dev* attributes. 2013-01-03 15:57:01 -08:00
sr_ioctl.c scsi: Fix up files implicitly depending on module.h inclusion 2011-10-31 19:31:24 -04:00
sr_vendor.c
sr.c block_device_operations->release() should return void 2013-05-07 02:16:21 -04:00
sr.h [SCSI] sr: check_events() ignore GET_EVENT when TUR says otherwise 2011-07-21 14:15:58 -07:00
st_options.h
st.c [SCSI] st: Take additional queue ref in st_probe 2013-04-06 11:14:20 +01:00
st.h [SCSI] st: raise device limit 2012-09-14 17:59:29 +01:00
stex.c Drivers: scsi: remove __dev* attributes. 2013-01-03 15:57:01 -08:00
storvsc_drv.c SCSI for-linus on 20130301 2013-03-02 11:42:16 -08:00
sun3_NCR5380.c sun3_scsi: add ->show_info() 2013-05-04 14:50:16 -04:00
sun3_scsi_vme.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
sun3_scsi.c sun3_scsi: add ->show_info() 2013-05-04 14:50:16 -04:00
sun3_scsi.h sun3_scsi: add ->show_info() 2013-05-04 14:50:16 -04:00
sun3x_esp.c Drivers: scsi: remove __dev* attributes. 2013-01-03 15:57:01 -08:00
sun_esp.c Drivers: scsi: remove __dev* attributes. 2013-01-03 15:57:01 -08:00
sym53c416.c Drivers: scsi: remove __dev* attributes. 2013-01-03 15:57:01 -08:00
sym53c416.h
t128.c NCR5830: switch to ->show_info() 2013-04-09 14:13:17 -04:00
t128.h NCR5830: switch to ->show_info() 2013-04-09 14:13:17 -04:00
tmscsim.c Drivers: scsi: remove __dev* attributes. 2013-01-03 15:57:01 -08:00
tmscsim.h
u14-34f.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
ultrastor.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
ultrastor.h
virtio_scsi.c virtio-scsi: reset virtqueue affinity when doing cpu hotplug 2013-04-08 23:06:56 +09:30
vmw_pvscsi.c Drivers: scsi: remove __dev* attributes. 2013-01-03 15:57:01 -08:00
vmw_pvscsi.h [SCSI] vmw_pvscsi: Try setting host->max_id as suggested by the device. 2012-03-27 08:26:36 +01:00
wd33c93.c switch wd33c93 to ->show_info() 2013-04-09 14:13:15 -04:00
wd33c93.h switch wd33c93 to ->show_info() 2013-04-09 14:13:15 -04:00
wd7000.c wd7000: switch to ->show_info() 2013-04-09 14:13:15 -04:00
zalon.c Drivers: scsi: remove __dev* attributes. 2013-01-03 15:57:01 -08:00
zorro7xx.c Drivers: scsi: remove __dev* attributes. 2013-01-03 15:57:01 -08:00