kernel.git/drivers/infiniband/ulp/iser/iser_memory.c, branch linux-2.6.32.y

IB/iser: Rewrite SG handling for RDMA logic

2010-04-26T14:41:36Z

commit c1ccaf2478f84c2665cf57f981db143aa582d646 upstream. After dma-mapping an SG list provided by the SCSI midlayer, iser has to make sure the mapped SG is "aligned for RDMA" in the sense that its possible to produce one mapping in the HCA IOMMU which represents the whole SG. Next, the mapped SG is formatted for registration with the HCA. This patch re-writes the logic that does the above, to make it clearer and simpler. It also fixes a bug in the being aligned for RDMA checks, where a "start" check wasn't done but rather only "end" check. [commit message in RH kernel tree: "Under heavy load, without the patch, the HCA can be programmed to write (corrupt) into pages/location which doesn't belong to the SG associated with the actual I/O and cause a kernel oops."] Signed-off-by: Alexander Nezhinsky Signed-off-by: Or Gerlitz Signed-off-by: Roland Dreier Cc: maximilian attems Signed-off-by: Greg Kroah-Hartman

Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6

2008-07-16T01:58:04Z

* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (102 commits) [SCSI] scsi_dh: fix kconfig related build errors [SCSI] sym53c8xx: Fix bogus sym_que_entry re-implementation of container_of [SCSI] scsi_cmnd.h: remove double inclusion of linux/blkdev.h [SCSI] make struct scsi_{host,target}_type static [SCSI] fix locking in host use of blk_plug_device() [SCSI] zfcp: Cleanup external header file [SCSI] zfcp: Cleanup code in zfcp_erp.c [SCSI] zfcp: zfcp_fsf cleanup. [SCSI] zfcp: consolidate sysfs things into one file. [SCSI] zfcp: Cleanup of code in zfcp_aux.c [SCSI] zfcp: Cleanup of code in zfcp_scsi.c [SCSI] zfcp: Move status accessors from zfcp to SCSI include file. [SCSI] zfcp: Small QDIO cleanups [SCSI] zfcp: Adapter reopen for large number of unsolicited status [SCSI] zfcp: Fix error checking for ELS ADISC requests [SCSI] zfcp: wait until adapter is finished with ERP during auto-port [SCSI] ibmvfc: IBM Power Virtual Fibre Channel Adapter Client Driver [SCSI] sg: Add target reset support [SCSI] lib: Add support for the T10 (SCSI) Data Integrity Field CRC [SCSI] sd: Move scsi_disk() accessor function to sd.h ...

RDMA: Remove subversion $Id tags

2008-07-15T06:48:44Z

They don't get updated by git and so they're worse than useless. Signed-off-by: Roland Dreier

[SCSI] iser: handle iscsi_cmd_task rename

2008-07-12T13:22:20Z

This handles the iscsi_cmd_task rename and renames the iser cmd task to iser task. Signed-off-by: Mike Christie Signed-off-by: James Bottomley

IB/iser: Count FMR alignment violations per session

2008-04-29T20:46:52Z

Count FMR alignment violations per session as part of the iscsi statistics. Signed-off-by: Eli Dorfman Signed-off-by: Roland Dreier

IB/iser: Move high-volume debug output to higher debug level

2008-04-29T20:46:52Z

Add another level for debug. Signed-off-by: Eli Dorfman Signed-off-by: Roland Dreier

IB/iser: Add missing counter increment in iser_data_buf_aligned_len()

2007-11-24T21:50:39Z

While adding sg chaining support to iSER, a "for" loop was replaced with a "for_each_sg" loop. The "for" loop included the incrementation of 2 variables. Only one of them is incremented in the current "for_each_sg" loop. This caused iSER to think that all data is unaligned, and all data was copied to aligned buffers. This patch increments the missing counter inside the "for_each_sg" loop whenever necessary. Signed-off-by: Erez Zilber Signed-off-by: Roland Dreier

[SG] Update drivers to use sg helpers

2007-10-22T19:19:53Z

Signed-off-by: Jens Axboe

infiniband: sg chaining support

2007-10-16T09:20:59Z

Signed-off-by: Jens Axboe

IB/iser: Remove unnecessary includes

2007-10-10T02:59:13Z

is not needed because everyplace it appears, also appears. is not needed because nothing seems to be using device IO anyway. Signed-off-by: Roland Dreier