- 02 May, 2013 40 commits
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Akinobu Mita authored
provisioning map (map_storep) is a bitmap accessed by bitops. So the allocation size should be a multiple of sizeof(unsigned long) and also the bitmap should be cleared by using bitmap_clear() instead of memset(). Otherwise it will cause problem on big-endian architecture if the number of bits is not a multiple of BITS_PER_LONG. I tried testing the logical block provisioning support in scsi_debug, but it didn't work as I expected. For example, load scsi_debug module with UNMAP command supported and fill the storage with random data. # modprobe scsi_debug lbpu=1 # dd if=/dev/urandom of=/dev/sdb Then, try to unmap LBA 0, but Get LBA status reports: # sg_unmap --lba=0 --num=1 /dev/sdb # sg_get_lba_status --lba=0 /dev/sdb descriptor LBA: 0x0000000000000000 blocks: 16384 mapped This is unexpected result. Because UNMAP command to LBA 0 finished without any errors, but Get LBA status shows that LBA 0 is still mapped. This problem is due to the wrong translation between LBA and index of provisioning map. Fix it by using correct translation functions. Signed-off-by:Akinobu Mita <akinobu.mita@gmail.com> Acked-by:
Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by:
James Bottomley <JBottomley@Parallels.com>
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Akinobu Mita authored
The function unmap_region() clears memory region specified as the logical block address and the number of logical blocks in ramdisk storage (fake_storep) if lbpu and lbprz module parameters are enabled. In the while loop of unmap_region(), it advances optimal unmap granularity in logical blocks. But it only clears one logical block at LBA 'block' per loop iteration. And furthermore, the 'block' is not pointing to a logical block address which should be cleared, it is a index of probisioning map (map_storep). Signed-off-by:
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Akinobu Mita authored
scsi_debug prohibits setting scsi_debug_unmap_alignment to be greater than scsi_debug_unmap_granularity. But setting them to be the same value is not prohibited. In this case, the only difference with scsi_debug_unmap_alignment == 0 is the logical blocks from 0 to scsi_debug_unmap_alignment - 1 cannot be unmapped. But the difference is not properly handled in the current code. So this prohibits such unusual setting. Signed-off-by:
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Akinobu Mita authored
If the logical block provisioning is not enabled, map_region() and unmap_region() have no effect and they don't need to be called. So this makes map_region() and unmap_region() to be called only when scsi_debug_lbp() returns true, i.e. logical block provisioning is enabled. While I'm at it, this also removes meaningless non-zero check for scsi_debug_unmap_granularity. Because scsi_debug_unmap_granularity cannot be zero with usual setting: scsi_debug_unmap_granularity is 1 by default, and it can be changed to zero with explicit module parameter setting only when the logical block provisioning is disabled. But it is only meaningful module parameter when the logical block provisioning is enabled. Signed-off-by:
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Jeremy Higdon authored
It appears to me that there is a problem with handling of type 1 protection information. It is considering a logical block reference tag of 0xffffffff to be an error, but it is actually valid any time ((lba & 0xffffffff) == 0xffffffff) [for example, 2TiB-1, 4TiB-1, 6TiB-1, etc.]. I'm going by what's written in 4.18.3 of SBC3, where there doesn't appear to be any invalid value for the reference tag. Signed-off-by:
Jeremy Higdon <jeremy@sgi.com> Acked-by:
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wenxiong@linux.vnet.ibm.com authored
Driver passed the wrong IOADL address to IOA adapter. The patch fixes the issue. Signed-off-by:
Wen Xiong <wenxiong@linux.vnet.ibm.com> Acked-by:
Brian King <brking@linux.vnet.ibm.com> Signed-off-by:
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Wei Yongjun authored
Fix to return -ENOMEM in the create workqueue error case instead of 0, as done elsewhere in this function. Signed-off-by:
Wei Yongjun <yongjun_wei@trendmicro.com.cn> Reviewed-by:
Mike Christie <michaelc@cs.wisc.edu> Signed-off-by:
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James Smart authored
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James Smart <james.smart@emulex.com> Signed-off-by:
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James Smart authored
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James Smart authored
[SCSI] lpfc 8.3.39: Reduced tmo value set to FLOGI WQE for quick recovery from FLOGI sequence timeout Signed-off-by:
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James Smart authored
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James Smart authored
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James Smart authored
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James Smart authored
[SCSI] lpfc 8.3.39: Fixed system panic during EEH recovery due to midlayer acting on outstanding I/O Signed-off-by:
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James Smart authored
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James Smart authored
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James Smart authored
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James Smart authored
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James Smart authored
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James Smart authored
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James Smart authored
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James Smart authored
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James Smart authored
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James Smart authored
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James Smart authored
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James Smart authored
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James Smart authored
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James Smart authored
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James Smart authored
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wenxiong@linux.vnet.ibm.com authored
Add reset adapter after the 6th EEH errors in ipr driver. This triggers the adapter reset via the PCI config space even when the slot is frozen. Signed-off-by:
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Vikas Chaudhary authored
Signed-off-by:
Vikas Chaudhary <vikas.chaudhary@qlogic.com> Signed-off-by:
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Adheer Chandravanshi authored
Assign values using correct datatype in function qla4xxx_copy_to_fwddb_param() Signed-off-by:
Adheer Chandravanshi <adheer.chandravanshi@qlogic.com> Signed-off-by:
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Adheer Chandravanshi authored
Fix following smatch warnings:- drivers/scsi/qla4xxx/ql4_os.c:6573 qla4xxx_sysfs_ddb_set_param() warn: possible memory leak of 'fw_ddb_entry' drivers/scsi/qla4xxx/ql4_os.c:6596 qla4xxx_sysfs_ddb_delete() warn: variable dereferenced before check 'fnode_sess' (see line 6584) drivers/scsi/qla4xxx/ql4_os.c:6632 qla4xxx_sysfs_ddb_delete() error: potential NULL dereference 'fw_ddb_entry'. Signed-off-by:
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Vikas Chaudhary authored
Fix following warning: drivers/scsi/qla4xxx/ql4_os.c:5507:5: warning: symbol 'qla4xxx_sysfs_ddb_tgt_create' was not declared. Should it be static? Signed-off-by:
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Vikas Chaudhary authored
Fix followig gcc warning:- drivers/scsi/qla4xxx/ql4_os.c: In function ‘qla4xxx_sysfs_ddb_get_param’: drivers/scsi/qla4xxx/ql4_os.c:6279: warning: comparison is always true due to limited range of data type drivers/scsi/qla4xxx/ql4_os.c:6290: warning: comparison is always true due to limited range of data type drivers/scsi/qla4xxx/ql4_os.c: In function ‘qla4xxx_sysfs_ddb_delete’: drivers/scsi/qla4xxx/ql4_os.c:6593: warning: ‘ddb_size’ may be used uninitialized in this function Signed-off-by:
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Dan Carpenter authored
__be32 is already a __bitwise type so we don't need the second __bitwise here. It causes a Sparse error: include/scsi/osd_protocol.h:110:26: error: invalid modifier Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Acked-by:
Benny Halevy <bhalevy@tonian.com> Signed-off-by:
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Dan Carpenter authored
We should unlock here before returning. Signed-off-by:
Adam Radford <aradford@gmail.com> Signed-off-by:
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Brian King authored
Signed-off-by:
Robert Jennings <rcj@linux.vnet.ibm.com> Signed-off-by:
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Brian King authored
Adds support for a new VIOS feature that allows ibmvfc to optimize terminate_rport_io by telling the VIOS the target is no longer accessible on the fabric and that it should not send an ABTS out on the fabric to the device. Signed-off-by:
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Brian King authored
If attempting to abort requests due to a fail fail timeout or error handling while the link is down, we cannot send an abort out on the fabric. We can, however, send a cancel to the VIOS. This fixes ibmvfc to send a cancel in this case to prevent error handling from failing and/or escalating. Signed-off-by:
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