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Gmane
From: Jens Axboe <jens.axboe <at> oracle.com>
Subject: [PATCH 0/19] Chaining sg lists for big IO commands v6
Newsgroups: gmane.linux.kernel
Date: Wednesday 16th May 2007 08:31:30 UTC (over 9 years ago)
Hi,

Round 6 of the sg chaining patch set. Changes since v5:

- Support for more architectures. It should now run and work on
  i386, x86-64, sparc, sparc64, ia64, and ppc (32 and 64-bit).
  I have only tested i386/x86-64/ppc64 myself.

- Large command support is now automatically enabled by the
  SCSI mid layer, if the arch supports sg chaining. The debug
  queue entry in /sys/block//queue/max_segments still exists
  if you want to tweak it further. The default limit is now
  2048 entries, or at least 8mb ios. Remember that you still need
  to tweak the soft limit to allow the block layer to build large
  commands, that is the max_sectors_kb variable in the same directory.

- Add kerneldoc documentation to scatterlist.h

It's solid here, so please give it a spin. I'd like to get some
performance results as well, if someone feels inclined to do so.


 arch/ia64/hp/common/sba_iommu.c           |   14 -
 arch/ia64/hp/sim/simscsi.c                |   23 +-
 arch/ia64/sn/pci/pci_dma.c                |   11 -
 arch/powerpc/kernel/dma_64.c              |    5 
 arch/powerpc/kernel/ibmebus.c             |   11 -
 arch/powerpc/kernel/iommu.c               |   18 +
 arch/powerpc/platforms/ps3/system-bus.c   |    5 
 arch/sparc/kernel/ioport.c                |   25 +-
 arch/sparc/mm/io-unit.c                   |   12 -
 arch/sparc/mm/iommu.c                     |   10 
 arch/sparc/mm/sun4c.c                     |   10 
 arch/sparc64/kernel/pci_iommu.c           |   39 ++-
 arch/sparc64/kernel/pci_sun4v.c           |   32 +-
 arch/sparc64/kernel/sbus.c                |   44 ++--
 arch/x86_64/kernel/pci-calgary.c          |   25 +-
 arch/x86_64/kernel/pci-gart.c             |   60 ++---
 arch/x86_64/kernel/pci-nommu.c            |    5 
 block/ll_rw_blk.c                         |   42 +++
 crypto/digest.c                           |    2 
 crypto/scatterwalk.c                      |    2 
 crypto/scatterwalk.h                      |    2 
 drivers/ata/libata-core.c                 |   30 +-
 drivers/ide/cris/ide-cris.c               |    3 
 drivers/ide/ide-dma.c                     |    2 
 drivers/ide/ide-taskfile.c                |   17 +
 drivers/ide/mips/au1xxx-ide.c             |    2 
 drivers/ide/pci/sgiioc4.c                 |    2 
 drivers/ide/ppc/pmac.c                    |    2 
 drivers/infiniband/hw/ipath/ipath_dma.c   |    9 
 drivers/infiniband/ulp/iser/iser_memory.c |   75 +++---
 drivers/infiniband/ulp/srp/ib_srp.c       |   22 +-
 drivers/message/fusion/mptscsih.c         |    4 
 drivers/scsi/3w-9xxx.c                    |    8 
 drivers/scsi/3w-xxxx.c                    |    8 
 drivers/scsi/53c700.c                     |   16 -
 drivers/scsi/BusLogic.c                   |    7 
 drivers/scsi/NCR53c406a.c                 |   18 -
 drivers/scsi/a100u2w.c                    |    9 
 drivers/scsi/aacraid/aachba.c             |   29 +-
 drivers/scsi/advansys.c                   |   21 -
 drivers/scsi/aha1542.c                    |   21 -
 drivers/scsi/aha1740.c                    |    8 
 drivers/scsi/aic7xxx/aic79xx_osm.c        |    3 
 drivers/scsi/aic7xxx/aic7xxx_osm.c        |   12 -
 drivers/scsi/aic94xx/aic94xx_task.c       |    6 
 drivers/scsi/arcmsr/arcmsr_hba.c          |   11 -
 drivers/scsi/dc395x.c                     |    7 
 drivers/scsi/dpt_i2o.c                    |   13 -
 drivers/scsi/eata.c                       |    8 
 drivers/scsi/esp_scsi.c                   |    5 
 drivers/scsi/gdth.c                       |   45 ++--
 drivers/scsi/hptiop.c                     |    8 
 drivers/scsi/ibmmca.c                     |   11 -
 drivers/scsi/ibmvscsi/ibmvscsi.c          |    4 
 drivers/scsi/ide-scsi.c                   |   31 +-
 drivers/scsi/initio.c                     |   12 -
 drivers/scsi/ipr.c                        |    9 
 drivers/scsi/ips.c                        |   74 +++---
 drivers/scsi/iscsi_tcp.c                  |   43 ++-
 drivers/scsi/jazz_esp.c                   |   27 +-
 drivers/scsi/lpfc/lpfc_scsi.c             |    9 
 drivers/scsi/mac53c94.c                   |    9 
 drivers/scsi/megaraid.c                   |   13 -
 drivers/scsi/megaraid/megaraid_mbox.c     |    7 
 drivers/scsi/megaraid/megaraid_sas.c      |   16 -
 drivers/scsi/mesh.c                       |   12 -
 drivers/scsi/ncr53c8xx.c                  |    7 
 drivers/scsi/nsp32.c                      |    9 
 drivers/scsi/pcmcia/sym53c500_cs.c        |   18 -
 drivers/scsi/qla1280.c                    |   66 +++---
 drivers/scsi/qla2xxx/qla_iocb.c           |    9 
 drivers/scsi/qla4xxx/ql4_iocb.c           |    8 
 drivers/scsi/qlogicfas408.c               |    9 
 drivers/scsi/qlogicpti.c                  |   15 -
 drivers/scsi/scsi_debug.c                 |   29 +-
 drivers/scsi/scsi_lib.c                   |  239 ++++++++++++++++------
 drivers/scsi/scsi_tgt_lib.c               |    4 
 drivers/scsi/sg.c                         |   16 -
 drivers/scsi/sym53c416.c                  |    9 
 drivers/scsi/sym53c8xx_2/sym_glue.c       |    7 
 drivers/scsi/u14-34f.c                    |   10 
 drivers/scsi/ultrastor.c                  |   10 
 drivers/scsi/wd7000.c                     |    7 
 drivers/usb/storage/alauda.c              |   16 -
 drivers/usb/storage/datafab.c             |   10 
 drivers/usb/storage/jumpshot.c            |   10 
 drivers/usb/storage/protocol.c            |   20 +
 drivers/usb/storage/protocol.h            |    2 
 drivers/usb/storage/sddr09.c              |   16 -
 drivers/usb/storage/sddr55.c              |   16 -
 drivers/usb/storage/shuttle_usbat.c       |   17 -
 include/asm-i386/dma-mapping.h            |   13 -
 include/asm-i386/scatterlist.h            |    2 
 include/asm-ia64/dma-mapping.h            |    1 
 include/asm-ia64/scatterlist.h            |    2 
 include/asm-powerpc/dma-mapping.h         |    2 
 include/asm-powerpc/scatterlist.h         |    2 
 include/asm-sparc/scatterlist.h           |    2 
 include/asm-sparc64/scatterlist.h         |    2 
 include/asm-x86_64/dma-mapping.h          |    3 
 include/asm-x86_64/scatterlist.h          |    2 
 include/linux/i2o.h                       |    2 
 include/linux/ide.h                       |    2 
 include/linux/libata.h                    |   16 -
 include/linux/scatterlist.h               |   84 +++++++
 include/scsi/scsi.h                       |    7 
 include/scsi/scsi_cmnd.h                  |    3 
 lib/swiotlb.c                             |   19 +
 108 files changed, 1104 insertions(+), 744 deletions(-)
 
CD: 3ms