Re: [PATCH 2/2] ksmbd: smbd: change the default maximum read/write, receive size

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2022-01-09 15:44 GMT+09:00, Steve French <smfrench@xxxxxxxxx>:
> Do you have more detail on what the negotiated readsize/writesize
> would be for Windows clients with this size? for Linux clients?
Hyunchul, Please answer.

>
> It looked like it would still be 4MB at first glance (although in
> theory some Windows could do 8MB) ... I may have missed something
I understood that multiple-buffer descriptor support was required to
set a read/write size of 1MB or more. As I know, Hyunchul is currently
working on it.
It seems to be set to the smaller of max read/write size in smb-direct
negotiate and max read/write size in smb2 negotiate.

Hyunchul, I have one question more, How did you get 1048512 setting value ?
>
> On Sat, Jan 8, 2022 at 8:43 PM Namjae Jeon <linkinjeon@xxxxxxxxxx> wrote:
>>
>> 2022-01-07 14:45 GMT+09:00, Hyunchul Lee <hyc.lee@xxxxxxxxx>:
>> > Due to restriction that cannot handle multiple
>> > buffer descriptor structures, decrease the maximum
>> > read/write size for Windows clients.
>> >
>> > And set the maximum fragmented receive size
>> > in consideration of the receive queue size.
>> >
>> > Signed-off-by: Hyunchul Lee <hyc.lee@xxxxxxxxx>
>> Acked-by: Namjae Jeon <linkinjeon@xxxxxxxxxx>
>
>
>
> --
> Thanks,
>
> Steve
>



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