Re: [PATCH v1 1/4] nfs: Define NFS_RDMA_PORT

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> On Dec 6, 2017, at 1:04 AM, Devesh Sharma <devesh.sharma@xxxxxxxxxxxx> wrote:
> 
> Oh! apologies if I was not clear what I wanted to say. I was thinking
> this change will avoid the step to write the nfsrdma port number into
> /proc/fs/nfsd/portlist file after starting the nfs server. This is
> step is a part of configuring nfs-rdma server. However, for tcp such
> entries are present by default in this file.

Hi Devesh-

I don't have to do this manually on my server, but maybe that's
because RHEL 7 system start-up scripts already handle it?

Bring this up in a separate thread on linux-nfs@xxxxxxxxxxxxxxx
and we can work it out. To answer your original question: no,
I don't believe this patch will change server start-up behavior.


> -Regards
> Devesh
> 
> On Wed, Dec 6, 2017 at 12:19 AM, Chuck Lever <chuck.lever@xxxxxxxxxx> wrote:
>> 
>>> On Dec 5, 2017, at 10:09 AM, Devesh Sharma <devesh.sharma@xxxxxxxxxxxx> wrote:
>>> 
>>> Hi Chuck,
>>> 
>>> Will this change avoid the "echo rdma 20049" on the nfs server during
>>> nfs server start?
>> 
>> I'm not familiar with this issue. Is there a bug report ?
>> 
>> 
>>> -Regards
>>> Devesh
>>> 
>>> On Tue, Dec 5, 2017 at 12:43 AM, Chuck Lever <chuck.lever@xxxxxxxxxx> wrote:
>>>> The NFS/RDMA port assignment is specified in Section 9 of RFC 8267.
>>>> 
>>>> Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
>>>> ---
>>>> include/uapi/linux/nfs.h |    1 +
>>>> 1 file changed, 1 insertion(+)
>>>> 
>>>> diff --git a/include/uapi/linux/nfs.h b/include/uapi/linux/nfs.h
>>>> index 057d22a..946cb62 100644
>>>> --- a/include/uapi/linux/nfs.h
>>>> +++ b/include/uapi/linux/nfs.h
>>>> @@ -12,6 +12,7 @@
>>>> 
>>>> #define NFS_PROGRAM    100003
>>>> #define NFS_PORT       2049
>>>> +#define NFS_RDMA_PORT  20049
>>>> #define NFS_MAXDATA    8192
>>>> #define NFS_MAXPATHLEN 1024
>>>> #define NFS_MAXNAMLEN  255
>> 
>> --
>> Chuck Lever
>> 
>> 
>> 
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--
Chuck Lever



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