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Re: [PATCH RFC v3 12/12] hw/block/nvme: add support for the format nvm c
From: |
Klaus Jensen |
Subject: |
Re: [PATCH RFC v3 12/12] hw/block/nvme: add support for the format nvm command |
Date: |
Wed, 17 Feb 2021 10:38:56 +0100 |
On Feb 17 09:26, Klaus Jensen wrote:
> On Feb 16 15:16, Keith Busch wrote:
> > On Mon, Feb 15, 2021 at 12:02:40AM +0100, Klaus Jensen wrote:
> > > From: Minwoo Im <minwoo.im@samsung.com>
> > >
> > > Format NVM admin command can make a namespace or namespaces to be
> > > with different LBA size and metadata size with protection information
> > > types.
> > >
> > > This patch introduces Format NVM command with LBA format, Metadata, and
> > > Protection Information for the device. The secure erase operation things
> > > are yet to be added.
> > >
> > > The parameter checks inside of this patch has been referred from
> > > Keith's old branch.
> >
> > Oh, and here's the format command now, so my previous comment on patch
> > 11 doesn't matter.
> >
> > > +struct nvme_aio_format_ctx {
> > > + NvmeRequest *req;
> > > + NvmeNamespace *ns;
> > > +
> > > + /* number of outstanding write zeroes for this namespace */
> > > + int *count;
> >
> > Shouldn't this count be the NvmeRequest's opaque value?
>
> That is already occupied by `num_formats` which tracks formats of
> individual namespaces. `count` is for outstanding write zeroes on one
> particular namespace.
And, btw, I have a seperate "aiocblist" RFC patch that replaces this
manual aio tracking in favor of actually tracking multiple aiocbs,
removing the need for for this ad-hoc accounting and fixing the cancel
bug in the process.
On vacation this week, so I expect to post it early next week ;)
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- [PATCH RFC v3 07/12] hw/block/nvme: add metadata support, (continued)
- [PATCH RFC v3 07/12] hw/block/nvme: add metadata support, Klaus Jensen, 2021/02/14
- [PATCH RFC v3 09/12] hw/block/nvme: add verify command, Klaus Jensen, 2021/02/14
- [PATCH RFC v3 04/12] hw/block/nvme: try to deal with the iov/qsg duality, Klaus Jensen, 2021/02/14
- [PATCH RFC v3 11/12] hw/block/nvme: support multiple lba formats, Klaus Jensen, 2021/02/14
- [PATCH RFC v3 12/12] hw/block/nvme: add support for the format nvm command, Klaus Jensen, 2021/02/14
- Re: [PATCH RFC v3 00/12] hw/block/nvme: metadata and end-to-end data protection support, Keith Busch, 2021/02/16