Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1656716

Re: [PATCH v3 3/8] nvmet: implement namespace identify descriptor list

From Christoph Hellwig <hch@lst.de>
Newsgroups linux.kernel
Subject Re: [PATCH v3 3/8] nvmet: implement namespace identify descriptor list
Date 2017-06-03 07:20 +0200
Message-ID <tO9DH-2OS-5@gated-at.bofh.it> (permalink)
References <tNRnr-7G9-3@gated-at.bofh.it> <tNRnr-7G9-5@gated-at.bofh.it> <tNV7H-1R8-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


On Fri, Jun 02, 2017 at 04:46:40PM +0300, Sagi Grimberg wrote:
>
>>  	switch (type) {
>>  	case NVME_NQN_NVME:
>> diff --git a/drivers/nvme/target/nvmet.h b/drivers/nvme/target/nvmet.h
>> index cfc5c7fb0ab7..4c6cb5ea1186 100644
>> --- a/drivers/nvme/target/nvmet.h
>> +++ b/drivers/nvme/target/nvmet.h
>> @@ -46,6 +46,7 @@ struct nvmet_ns {
>>  	u32			blksize_shift;
>>  	loff_t			size;
>>  	u8			nguid[16];
>> +	uuid_be			uuid;
>
> This should be uuid_le to match the rest of NVMe.

It shouldn't.  A RFC4122 uuid is always in "big endian" notation.
A little endiane uuid doesn't exist, it's called a GUID in Wintel
speak and isn't used in NVMe.  My new uuid tree tries to fix up
the confusion by renaming our uuid_be type to uuid_t and uuid_le
to guid_t.

> Also, it would be useful to generate a random default with uuid_le_gen()
> for a better out-of-the-box experience.

That's actually a good point.  Just needs to be uuid_be_gen/uuid_gen :)

Back to linux.kernel | Previous | NextPrevious in thread | Next in thread | Find similar | Unroll thread


Thread

[PATCH v3 3/8] nvmet: implement namespace identify descriptor list Johannes Thumshirn <jthumshirn@suse.de> - 2017-06-02 11:50 +0200
  Re: [PATCH v3 3/8] nvmet: implement namespace identify descriptor  list Sagi Grimberg <sagi@grimberg.me> - 2017-06-02 15:50 +0200
    Re: [PATCH v3 3/8] nvmet: implement namespace identify descriptor  list Johannes Thumshirn <jthumshirn@suse.de> - 2017-06-02 16:00 +0200
    Re: [PATCH v3 3/8] nvmet: implement namespace identify descriptor         list Christoph Hellwig <hch@lst.de> - 2017-06-03 07:20 +0200
      Re: [PATCH v3 3/8] nvmet: implement namespace identify descriptor  list Sagi Grimberg <sagi@grimberg.me> - 2017-06-03 10:10 +0200
  Re: [PATCH v3 3/8] nvmet: implement namespace identify descriptor         list Christoph Hellwig <hch@lst.de> - 2017-06-05 07:40 +0200
    Re: [PATCH v3 3/8] nvmet: implement namespace identify descriptor  list Johannes Thumshirn <jthumshirn@suse.de> - 2017-06-06 09:20 +0200
      Re: [PATCH v3 3/8] nvmet: implement namespace identify descriptor         list Christoph Hellwig <hch@lst.de> - 2017-06-06 09:20 +0200
        Re: [PATCH v3 3/8] nvmet: implement namespace identify descriptor  list Johannes Thumshirn <jthumshirn@suse.de> - 2017-06-06 09:30 +0200

csiph-web