On 5.2.2016 08:56, Sreekanth Reddy wrote: > On Thu, Feb 4, 2016 at 8:35 PM, Tomas Henzl <thenzl@xxxxxxxxxx> wrote: >> On 28.1.2016 07:37, Suganath prabu Subaramani wrote: >>> From: Suganath prabu Subramani <suganath-prabu.subramani@xxxxxxxxxxxxx> >>> >>> Added support for configurable Chain Frame Size. Calculate the >>> Chain Message Frame size from the IOCMaxChainSegementSize (iocfacts). >>> Applicable only for mpt3sas/SAS3.0 HBA's. >>> >>> Signed-off-by: Suganath prabu Subramani <suganath-prabu.subramani@xxxxxxxxxxxxx> >>> Signed-off-by: Chaitra P B <chaitra.basappa@xxxxxxxxxxxxx> >> Is this done in order to prepare for some future patch, or how does it work? >> I noticed only changes in allocation of (probably larger) fields, but >> how is it actually used ? > Tomas, > > In this patch set we have added new Intruder and Cutlass (high ports) > PCI devices which are based on MPI26 version. > In this MPI26 version, Request Frame size is doubled when compared to > older MPI version, but their is > no change in the Chain buffer size from MPI26 to older versions. In > older version Request frame size and > chain buffer size were same, so in the drivers previously we used to > use Request Frame size reference for > Chain buffer size. But we can't use that reference now. So now we are > determining the chain buffer size from > IOCFact's IOCMaxChainSegementSize field instead of using the Request > frame size reference. > > ~Sreekanth Thanks, Reviewed-by: Tomas Henzl <thenzl@xxxxxxxxxx> Tomas -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
