On 01/06/2017 16:25, Peter Lieven wrote:
>>
>> DEFINE_PROP_UINT32("max_sectors", VirtIOSCSI,
>> parent_obj.conf.max_sectors,
>> 0xFFFF),
>>
>> We could increase it now that we have support for max_xfer_len
>> passthrough.
>
> 0xFFFF * 512 is 32MB - 512 byte. This should not limit 1M requests?!
Yeah, I cannot do math apparently. Someone needs to debug the guest and
see where the strange 504K limit comes from.
Paolo
> blockdev --getmaxsect /dev/sda reports 1024 though. However, for
> virtio-blk its also 1024, but here 1M requests work.