The 10/13/2016 15:05, Sathya Prakash Veerichetty wrote: > By removing the code below, we put all the commands for all the types of > devices (SAS/SATA) as simple-Q (requeue as the device require) and I am > not sure whether it is the intention of this change. >
This is the intention of the change. I don't think the iopriority of the request is being used correctly. What does it mean to use 0x7 as an indicator that a command should be put at the head of the queue? This would be clearer if it was using some of the macros from ioprio. If 0x7 means something special I think this should be some #define in the includes of the fusion driver with some documentation. > -----Original Message----- > From: Adam Manzanares [mailto:adam.manzana...@hgst.com] > Sent: Thursday, October 13, 2016 1:54 PM > To: ax...@kernel.dk; t...@kernel.org; dan.j.willi...@intel.com; > h...@suse.de; martin.peter...@oracle.com; mchri...@redhat.com; > toshi.k...@hpe.com; ming....@canonical.com; sathya.prak...@broadcom.com; > chaitra.basa...@broadcom.com; suganath-prabu.subram...@broadcom.com > Cc: linux-block@vger.kernel.org; linux-...@vger.kernel.org; > linux-ker...@vger.kernel.org; mpt-fusionlinux....@broadcom.com; > linux-s...@vger.kernel.org; Adam Manzanares; Adam Manzanares > Subject: [PATCH v4 2/4] fusion: remove iopriority handling > > The request priority is now by default coming from the ioc. It was not > clear what this code was trying to do based upon the iopriority class or > data. The driver should check that a device supports priorities and use > them according to the specificiations of ioprio. > > Signed-off-by: Adam Manzanares <adam.manzana...@wdc.com> > --- > drivers/message/fusion/mptscsih.c | 5 ----- > 1 file changed, 5 deletions(-) > > diff --git a/drivers/message/fusion/mptscsih.c > b/drivers/message/fusion/mptscsih.c > index 6c9fc11..4740bb6 100644 > --- a/drivers/message/fusion/mptscsih.c > +++ b/drivers/message/fusion/mptscsih.c > @@ -1369,11 +1369,6 @@ mptscsih_qcmd(struct scsi_cmnd *SCpnt) > if ((vdevice->vtarget->tflags & MPT_TARGET_FLAGS_Q_YES) > && (SCpnt->device->tagged_supported)) { > scsictl = scsidir | MPI_SCSIIO_CONTROL_SIMPLEQ; > - if (SCpnt->request && SCpnt->request->ioprio) { > - if (((SCpnt->request->ioprio & 0x7) == 1) || > - !(SCpnt->request->ioprio & 0x7)) > - scsictl |= MPI_SCSIIO_CONTROL_HEADOFQ; > - } > } else > scsictl = scsidir | MPI_SCSIIO_CONTROL_UNTAGGED; > > -- > 2.1.4 > > Western Digital Corporation (and its subsidiaries) E-mail Confidentiality > Notice & Disclaimer: > > This e-mail and any files transmitted with it may contain confidential or > legally privileged information of WDC and/or its affiliates, and are > intended solely for the use of the individual or entity to which they are > addressed. If you are not the intended recipient, any disclosure, copying, > distribution or any action taken or omitted to be taken in reliance on it, > is prohibited. If you have received this e-mail in error, please notify > the sender immediately and delete the e-mail in its entirety from your > system. > -- > To unsubscribe from this list: send the line "unsubscribe linux-ide" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html Take care, Adam -- To unsubscribe from this list: send the line "unsubscribe linux-block" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
