From: Matteo Croce <technoboy85-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Johannes Berg <johannes-cdvu00un1VgdHxzADdlk8Q@public.gmane.org>
Cc: Radiotap <radiotap-sUITvd46vNxg9hUCZPvPmw@public.gmane.org>
Subject: Re: [RFA] HT extensions
Date: Tue, 21 Sep 2010 17:46:40 +0200 [thread overview]
Message-ID: <AANLkTiknr0QOwAd8ayKkk=yJ3_q+GfC_unGucMDEjzP=@mail.gmail.com> (raw)
In-Reply-To: <1284595489.3707.54.camel-8upI4CBIZJIJvtFkdXX2HixXY32XiHfO@public.gmane.org>
On Thu, Sep 16, 2010 at 2:04 AM, Johannes Berg
<johannes-cdvu00un1VgdHxzADdlk8Q@public.gmane.org> wrote:
> This is a request for adoption of the MCS/HT information we've talked
> about earlier, based on my second proposal that includes valid bits
> within the field.
>
> This proposal adds the following new field:
>
> Bit Number: 19
> Structure: u8 known, u8 flags, u8 mcs
> Required Alignment: 1
>
> The "mcs" field indicates the MCS rate index as in IEEE_802.11n-2009.
>
> The "known" field indicates which flags are known:
>
> 0x01: bandwidth
> 0x02: MCS index known (in `mcs` part of the field)
> 0x04: guard interval
> 0x08: HT format
> 0x10: FEC type
> 0x20: a-MPDU status
> 0x40: a-MPDU beginning/end
> 0x80: reserved
>
> The `flags` is any combination of the following:
> 0x03: bandwidth - 0: 20, 1: 40, 2: 20L, 3: 20U
> 0x04: short GI
> 0x08: 0: mixed, 1: greenfield
> 0x10: 0: BCC, 1: LDPC
> 0x20: a-MPDU status - 0: not part of an a-MPDU, 1: part of a-MPDU
> 0x40: 0: first frame, 1: last frame
> 0x80: reserved
>
>
>
> Attached is a patch to Linux to generate this information (partially)
> and a patch for wireshark to read it -- the wireshark patch is on top of
> the refactoring I did in
> https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=4421
>
> johannes
>
Even if I'm the author of the original proposal I agree with the new format,
as many chipset can't report all the informations correctly.
--
Matteo Croce
OpenWrt developer
_______ ________ __
| |.-----.-----.-----.| | | |.----.| |_
| - || _ | -__| || | | || _|| _|
|_______|| __|_____|__|__||________||__| |____|
|__| W I R E L E S S F R E E D O M
KAMIKAZE (bleeding edge) ------------------
* 10 oz Vodka Shake well with ice and strain
* 10 oz Triple sec mixture into 10 shot glasses.
* 10 oz lime juice Salute!
---------------------------------------------------
next prev parent reply other threads:[~2010-09-21 15:46 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-16 0:04 [RFA] HT extensions Johannes Berg
[not found] ` <1284595489.3707.54.camel-8upI4CBIZJIJvtFkdXX2HixXY32XiHfO@public.gmane.org>
2010-09-21 15:46 ` Matteo Croce [this message]
2010-10-05 17:45 ` Johannes Berg
2010-10-05 18:21 ` David Young
[not found] ` <20101005182108.GH14183-eZodSLrBbDpBDgjK7y7TUQ@public.gmane.org>
2010-10-05 18:27 ` Johannes Berg
[not found] ` <1286303263.3641.23.camel-8upI4CBIZJIJvtFkdXX2HixXY32XiHfO@public.gmane.org>
2010-10-05 18:42 ` David Young
[not found] ` <20101005184252.GI14183-eZodSLrBbDpBDgjK7y7TUQ@public.gmane.org>
2010-10-05 18:50 ` Johannes Berg
[not found] ` <1286304616.3641.25.camel-8upI4CBIZJIJvtFkdXX2HixXY32XiHfO@public.gmane.org>
2010-10-05 18:56 ` David Young
[not found] ` <20101005185636.GJ14183-eZodSLrBbDpBDgjK7y7TUQ@public.gmane.org>
2010-10-06 9:23 ` Johannes Berg
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='AANLkTiknr0QOwAd8ayKkk=yJ3_q+GfC_unGucMDEjzP=@mail.gmail.com' \
--to=technoboy85-re5jqeeqqe8avxtiumwx3w@public.gmane.org \
--cc=johannes-cdvu00un1VgdHxzADdlk8Q@public.gmane.org \
--cc=radiotap-sUITvd46vNxg9hUCZPvPmw@public.gmane.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).