linux-toradex.git/drivers/scsi/device_handler/scsi_dh_rdac.c, branch v3.16.5

block: add blk_rq_set_block_pc()

2014-06-06T13:57:37+00:00

With the optimizations around not clearing the full request at alloc
time, we are leaving some of the needed init for REQ_TYPE_BLOCK_PC
up to the user allocating the request.

Add a blk_rq_set_block_pc() that sets the command type to
REQ_TYPE_BLOCK_PC, and properly initializes the members associated
with this type of request. Update callers to use this function instead
of manipulating rq->cmd_type directly.

Includes fixes from Christoph Hellwig  for my half-assed
attempt.

Signed-off-by: Jens Axboe

[SCSI] scsi_dh_rdac: Add new IBM 1813 product id to rdac devlist

2013-10-25T08:57:55+00:00

Signed-off-by: Sean Stewart 
Signed-off-by: James Bottomley

[SCSI] scsi_dh_rdac : minor return fix for rdac

2012-09-24T08:11:03+00:00

Signed-off-by: Babu Moger 
Signed-off-by: James Bottomley

[SCSI] scsi_dh_rdac : Consolidate rdac strings together

2012-09-24T08:11:03+00:00

This patch consolidates the strings together. Purpose is to remove minor product strings extensions.
That way the future products with similar strings should not require change  here.

Signed-off-by: Babu Moger 
Signed-off-by: James Bottomley

[SCSI] scsi_dh_rdac: Add a new netapp vendor/product string

2012-09-24T08:11:03+00:00

This patch adds a new vendor/product strings for netapp E series  product.
Also consolidated the strings together with similar names.

Signed-off-by: Babu Moger 
Signed-off-by: James Bottomley

[SCSI] scsi_dh_rdac: Fix for unbalanced reference count

2012-02-22T18:15:19+00:00

This patch fixes an unbalanced refcount issue.

Elevating the lock for both kref_put and also for controller node deletion.
Previously, controller deletion was protected but the not the kref_put. This
was causing the other thread to pick up the controller structure which was
already kref'd zero.

This was causing the following WARN_ON and also sometimes panic.

WARNING: at lib/kref.c:43 kref_get+0x2d/0x30() (Not tainted)
Hardware name: IBM System x3655 -[7985AC1]-
Modules linked in: fuse scsi_dh_rdac autofs4 nfs lockd fscache nfs_acl
auth_rpcgss sunrpc 8021q garp stp llc ipv6 ib_srp(U) scsi_transport_srp
scsi_tgt ib_cm(U) ib_sa(U) ib_uverbs(U) ib_umad(U) mlx4_ib(U) mlx4_core(U)
ib_mthca(U) ib_mad(U) ib_core(U) dm_mirror dm_region_hash dm_log dm_round_robin
dm_multipath uinput bnx2 ses enclosure sg ibmpex ibmaem ipmi_msghandler
serio_raw k8temp hwmon amd64_edac_mod edac_core edac_mce_amd shpchp i2c_piix4
ext4 mbcache jbd2 sr_mod cdrom sd_mod crc_t10dif sata_svw pata_acpi ata_generic
pata_serverworks aacraid radeon ttm drm_kms_helper drm i2c_algo_bit i2c_core
dm_mod [last unloaded: freq_table]
Pid: 13735, comm: srp_daemon Not tainted 2.6.32-71.el6.x86_64 #1
Call Trace:
[] warn_slowpath_common+0x87/0xc0
[] warn_slowpath_null+0x1a/0x20
[] kref_get+0x2d/0x30
[] rdac_bus_attach+0x459/0x580 [scsi_dh_rdac]
[] scsi_dh_handler_attach+0x2a/0x80
[] scsi_dh_notifier+0x9b/0xa0
[] notifier_call_chain+0x55/0x80
[] __blocking_notifier_call_chain+0x5a/0x80
[] blocking_notifier_call_chain+0x16/0x20
[] device_add+0x515/0x640
[] ? attribute_container_device_trigger+0xc4/0xe0
[] scsi_sysfs_add_sdev+0x89/0x2c0
[] scsi_probe_and_add_lun+0xea6/0xed0
[] ? scsi_alloc_target+0x292/0x2d0
[] __scsi_scan_target+0x121/0x750
[] ? sysfs_create_file+0x26/0x30
[] ? device_create_file+0x19/0x20
[] ? attribute_container_add_attrs+0x78/0x90
[] ? klist_next+0x4c/0xf0
[] ? transport_configure+0x0/0x20
[] ? attribute_container_device_trigger+0xc4/0xe0
[] scsi_scan_target+0xd0/0xe0
[] srp_create_target+0x75a/0x890 [ib_srp]
[] dev_attr_store+0x20/0x30
[] sysfs_write_file+0xe5/0x170
[] vfs_write+0xb8/0x1a0
[] ? audit_syscall_entry+0x272/0x2a0
[] sys_write+0x51/0x90
[] system_call_fastpath+0x16/0x1b

Signed-off-by: Babu Moger 
Acked-by: Mike Snitzer 
Signed-off-by: James Bottomley

[SCSI] scsi_dh_rdac: Fix error path

2012-01-10T23:01:18+00:00

If create_singlethread_workqueue() failes, rdac_init should fail too.

Signed-off-by: Richard Weinberger 
Acked-by: "Moger, Babu" 
Signed-off-by: James Bottomley

[SCSI] scsi_dh_rdac: Adding the match function for rdac device handler

2011-12-15T06:55:00+00:00

This patch introduces the match function for rdac device handler. Without
this, sometimes handler attach fails during the device_add. Included check for
TPGS bit before proceeding further. The match function was introduced by
commit 6c3633d08acf514e2e89aa95d2346ce9d64d719a

Signed-off-by: Babu Moger 
Acked-by: Hannes Reinecke 
Signed-off-by: James Bottomley

scsi: Fix up files implicitly depending on module.h inclusion

2011-10-31T23:31:24+00:00

The module.h header was implicitly present everywhere, so files
with no explicit include of the module infrastructure would build
anyway.  We are now removing the implicit include, and so we need
to call out the module.h file that we need explicitly.

Signed-off-by: Paul Gortmaker

[SCSI] scsi_dh_rdac: Adding NetApp as a brand name for rdac

2011-09-22T11:26:43+00:00

Signed-off-by: Vijay Chauhan 
Reviewed-by: Bob Stankey 
Reviewed-by: Babu Moger 
Acked-by: Chandra Seetharaman 
Signed-off-by: James Bottomley