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From: Dan Williams <dan.j.williams@intel.com>
To: "Verma, Vishal L" <vishal.l.verma@intel.com>
Cc: "Widawsky, Ben" <ben.widawsky@intel.com>,
	"linux-cxl@vger.kernel.org" <linux-cxl@vger.kernel.org>,
	"nvdimm@lists.linux.dev" <nvdimm@lists.linux.dev>
Subject: Re: [ndctl PATCH v4 09/17] util/hexdump: Add a util helper to print a buffer in hex
Date: Thu, 14 Oct 2021 15:39:53 -0700	[thread overview]
Message-ID: <CAPcyv4gH02T29-WQeRORgk6nfn250fY8q00x3aNh0c46V4YXEQ@mail.gmail.com> (raw)
In-Reply-To: <39a3f49daff50d8065e95cf4cd5ef4268d3a1c18.camel@intel.com>

On Thu, Oct 14, 2021 at 1:33 PM Verma, Vishal L
<vishal.l.verma@intel.com> wrote:
>
> On Thu, 2021-10-14 at 09:48 -0700, Dan Williams wrote:
> > On Thu, Oct 7, 2021 at 1:22 AM Vishal Verma <vishal.l.verma@intel.com> wrote:
> > >
> > > In preparation for tests that may need to set, retrieve, and display
> > > opaque data, add a hexdump function in util/
> > >
> > > Cc: Ben Widawsky <ben.widawsky@intel.com>
> > > Cc: Dan Williams <dan.j.williams@intel.com>
> > > Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
> > > ---
> > >  util/hexdump.h |  8 ++++++++
> > >  util/hexdump.c | 53 ++++++++++++++++++++++++++++++++++++++++++++++++++
> >
> > If this is just for tests shouldn't it go in tests/ with the other
> > common test helpers? If it stays in util/ I would kind of expect it to
> > use the log infrastructure, no?
>
> Agreed on using the log infra. I was originally using it in the old
> test stuff, but right now there's no user for it.. However having
> something like this was nice when developing the early cmd submission
> stuff. Do you think it would be good to always do a hexdump with dbg()
> when under --verbose for evert cxl_cmd_submit? (and maybe even add it
> for ndctl_cmd_submit later too) Or is that too noisy?

It sounds good as an extra-verbose debug option. At least it would be
more personal preference that -v does not get any more noisy by
default and require -vv to get hexdumps.

> If we want to do that then it makes sense to redo with the logging api,
> else maybe jsut drop this until we have a real in-tree user?

That's always ok in my book.

  reply	other threads:[~2021-10-14 22:40 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-07  8:21 [ndctl PATCH v4 00/17] Initial CXL support Vishal Verma
2021-10-07  8:21 ` [ndctl PATCH v4 01/17] ndctl: add .clang-format Vishal Verma
2021-10-07  8:21 ` [ndctl PATCH v4 02/17] cxl: add a cxl utility and libcxl library Vishal Verma
2021-10-07  8:21 ` [ndctl PATCH v4 03/17] cxl: add a local copy of the cxl_mem UAPI header Vishal Verma
2021-10-07  8:21 ` [ndctl PATCH v4 04/17] util: add the struct_size() helper from the kernel Vishal Verma
2021-10-14  2:40   ` Dan Williams
2021-10-07  8:21 ` [ndctl PATCH v4 05/17] libcxl: add support for command query and submission Vishal Verma
2021-10-14  2:53   ` Dan Williams
2021-10-07  8:21 ` [ndctl PATCH v4 06/17] libcxl: add support for the 'Identify Device' command Vishal Verma
2021-10-07  8:21 ` [ndctl PATCH v4 07/17] libcxl: add GET_HEALTH_INFO mailbox command and accessors Vishal Verma
2021-10-14 16:01   ` Dan Williams
2021-11-02 20:22     ` Verma, Vishal L
2021-11-02 20:27       ` Dan Williams
2021-10-07  8:21 ` [ndctl PATCH v4 08/17] libcxl: add support for the 'GET_LSA' command Vishal Verma
2021-10-14 16:35   ` Dan Williams
2021-10-14 20:06     ` Verma, Vishal L
2021-10-14 20:55       ` Dan Williams
2021-10-07  8:21 ` [ndctl PATCH v4 09/17] util/hexdump: Add a util helper to print a buffer in hex Vishal Verma
2021-10-14 16:48   ` Dan Williams
2021-10-14 20:33     ` Verma, Vishal L
2021-10-14 22:39       ` Dan Williams [this message]
2021-11-02 20:25         ` Verma, Vishal L
2021-10-07  8:21 ` [ndctl PATCH v4 10/17] libcxl: add label_size to cxl_memdev, and an API to retrieve it Vishal Verma
2021-10-14 18:24   ` Dan Williams
2021-10-14 21:50     ` Verma, Vishal L
2021-10-07  8:21 ` [ndctl PATCH v4 11/17] libcxl: add a stub interface to determine whether a memdev is active Vishal Verma
2021-10-14 19:59   ` Dan Williams
2021-10-07  8:21 ` [ndctl PATCH v4 12/17] libcxl: add interfaces for label operations Vishal Verma
2021-10-14 21:27   ` Dan Williams
2021-10-14 22:18     ` Verma, Vishal L
2021-10-14 22:24     ` Verma, Vishal L
2021-10-14 22:45       ` Dan Williams
2021-10-07  8:21 ` [ndctl PATCH v4 13/17] cxl: add commands to read, write, and zero labels Vishal Verma
2021-10-14 22:34   ` Dan Williams
2021-10-07  8:21 ` [ndctl PATCH v4 14/17] Documentation/cxl: add library API documentation Vishal Verma
2021-10-14 23:31   ` Dan Williams
2021-11-05 18:58   ` Dan Williams
2021-10-07  8:21 ` [ndctl PATCH v4 15/17] ndctl: Add CXL packages to the RPM spec Vishal Verma
2021-10-14 23:33   ` Dan Williams
2021-10-07  8:21 ` [ndctl PATCH v4 16/17] cxl-cli: add bash completion Vishal Verma
2021-10-14 23:34   ` Dan Williams
2021-10-07  8:21 ` [ndctl PATCH v4 17/17] cxl: add health information to cxl-list Vishal Verma
2021-10-11 22:07   ` Verma, Vishal L
2021-10-15  0:09     ` Dan Williams
2021-10-14 23:42   ` Verma, Vishal L
2021-10-15 21:15     ` Dan Williams

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