> Hello Changheun!
>
> > I want to discuss using max_xfer_blocks instead of opt_xfer_blocks as
> > a optional. For example, device reports opt_xfer_blocks is 512KB and
> > 1MB as a max_xfer_blocks too. Currently rw_max is set with 512KB only.
>
> Because that's what the device asks for. If a
Hello Changheun!
> I want to discuss using max_xfer_blocks instead of opt_xfer_blocks as
> a optional. For example, device reports opt_xfer_blocks is 512KB and
> 1MB as a max_xfer_blocks too. Currently rw_max is set with 512KB only.
Because that's what the device asks for. If a device
> Damien,
>
> >> How about set larger valid value between sdkp->max_xfer_blocks,
> >> and sdkp->opt_xfer_blocks to rw_max?
> >
> > Again, if your device reports an opt_xfer_blocks value that is too
> > small for its own good, that is a problem with this device.
>
> Correct. It is very much
Damien,
>> How about set larger valid value between sdkp->max_xfer_blocks,
>> and sdkp->opt_xfer_blocks to rw_max?
>
> Again, if your device reports an opt_xfer_blocks value that is too
> small for its own good, that is a problem with this device.
Correct. It is very much intentional that we
On 2021/01/22 16:24, Changheun Lee wrote:
>> On 2021/01/20 15:45, Manjong Lee wrote:
>>> Add recipients for more reviews.
>>
>> Please resend instead of replying to your own patch. The reply quoting
>> corrupts
>> the patch.
>>
>> The patch title is very long.
>>
>>>
SCSI device has
> On 2021/01/20 15:45, Manjong Lee wrote:
> > Add recipients for more reviews.
>
> Please resend instead of replying to your own patch. The reply quoting
> corrupts
> the patch.
>
> The patch title is very long.
>
> >
> >> SCSI device has max_xfer_size and opt_xfer_size,
> >> but current
On 2021/01/20 15:45, Manjong Lee wrote:
> Add recipients for more reviews.
Please resend instead of replying to your own patch. The reply quoting corrupts
the patch.
The patch title is very long.
>
>> SCSI device has max_xfer_size and opt_xfer_size,
>> but current kernel uses only
Add recipients for more reviews.
>SCSI device has max_xfer_size and opt_xfer_size,
>but current kernel uses only opt_xfer_size.
>
>It causes the limitation on setting IO chunk size,
>although it can support larger one.
>
>So, I propose this patch to use max_xfer_size in case it has valid value.
SCSI device has max_xfer_size and opt_xfer_size,
but current kernel uses only opt_xfer_size.
It causes the limitation on setting IO chunk size,
although it can support larger one.
So, I propose this patch to use max_xfer_size in case it has valid value.
It can support to use the larger chunk IO
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