27 Nov, 2014

1 commit

  • The task_collector mode (or "latency_injector", (C) Dan Willians) is an
    optional I/O path in libsas that queues up scsi commands instead of
    directly sending it to the hardware. It generall increases latencies
    to in the optiomal case slightly reduce mmio traffic to the hardware.

    Only the obsolete aic94xx driver and the mvsas driver allowed to use
    it without recompiling the kernel, and most drivers didn't support it
    at all.

    Remove the giant blob of code to allow better optimizations for scsi-mq
    in the future.

    Signed-off-by: Christoph Hellwig
    Reviewed-by: Hannes Reinecke
    Acked-by: Dan Williams

    Christoph Hellwig
     

20 Feb, 2012

1 commit

  • Arrange for the deallocation of a struct domain_device object when it no
    longer has:
    1/ any children
    2/ references by any scsi_targets
    3/ references by a lldd

    The comment about domain_device lifetime in
    Documentation/scsi/libsas.txt is stale as it appears mainline never had
    a version of a struct domain_device that was registered as a kobject.
    We now manage domain_device reference counts on behalf of external
    agents.

    Reviewed-by: Jack Wang
    Signed-off-by: Dan Williams
    Signed-off-by: James Bottomley

    Dan Williams
     

30 Nov, 2006

1 commit


29 Aug, 2006

1 commit

  • This is the end point of the separate aic94xx driver based on the
    original driver and transport class from Luben Tuikov

    The log of the separate development is:

    Alexis Bruemmer:
    o aic94xx: fix hotplug/unplug for expanderless systems
    o aic94xx: disable split completion timer/setting by default
    o aic94xx: wide port off expander support
    o aic94xx: remove various inline functions
    o aic94xx: use bitops
    o aic94xx: remove queue comment
    o aic94xx: remove sas_common.c
    o aic94xx: sas remove depot's
    o aic94xx: use available list_for_each_entry_safe_reverse()
    o aic94xx: sas header file merge

    James Bottomley:
    o aic94xx: fix TF_TMF_NO_CTX processing
    o aic94xx: convert to request_firmware interface
    o aic94xx: fix hotplug/unplug
    o aic94xx: add link error counts to the expander phys
    o aic94xx: add transport class phy reset capability
    o aic94xx: remove local_attached flag
    o Remove README
    o Fixup Makefile variable for libsas rename
    o Rename sas->libsas
    o aic94xx: correct return code for sas_discover_event
    o aic94xx: use parent backlink port
    o aic94xx: remove channel abstraction
    o aic94xx: fix routing algorithms
    o aic94xx: add backlink port
    o aic94xx: fix cascaded expander properties
    o aic94xx: fix sleep under lock
    o aic94xx: fix panic on module removal in complex topology
    o aic94xx: make use of the new sas_port
    o rename sas_port to asd_sas_port
    o Fix for eh_strategy_handler move
    o aic94xx: move entirely over to correct transport class formulation
    o remove last vestages of sas_rphy_alloc()
    o update for eh_timed_out move
    o Preliminary expander support for aic94xx
    o sas: remove event thread
    o minor warning cleanups
    o remove last vestiges of id mapping arrays
    o Further updates
    o Convert aic94xx over entirely to the transport class end device and
    o update aic94xx/sas to use the new sas transport class end device
    o [PATCH] aic94xx: attaching to the sas transport class
    o Add missing completion removal from prior patch
    o [PATCH] aic94xx: attaching to the sas transport class
    o Build fixes from akpm

    Jeff Garzik:
    o [scsi aic94xx] Remove ->owner from PCI info table

    Luben Tuikov:
    o initial aic94xx driver

    Mike Anderson:
    o aic94xx: fix panic on module insertion
    o aic94xx: stub out SATA_DEV case
    o aic94xx: compile warning cleanups
    o aic94xx: sas_alloc_task
    o aic94xx: ref count update
    o aic94xx nexus loss time value
    o [PATCH] aic94xx: driver assertion in non-x86 BIOS env

    Randy Dunlap:
    o libsas: externs not needed

    Robert Tarte:
    o aic94xx: sequence patch - fixes SATA support

    Signed-off-by: James Bottomley

    James Bottomley