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From: Johannes Berg <johannes@sipsolutions.net>
To: "netdev@vger.kernel.org" <netdev@vger.kernel.org>
Cc: Daniel Borkmann <dborkman@redhat.com>,
	Alexei Starovoitov <ast@kernel.org>
Subject: eBPF - little-endian load instructions?
Date: Tue, 11 Apr 2017 12:38:34 +0200	[thread overview]
Message-ID: <1491907114.31620.18.camel@sipsolutions.net> (raw)

Hi,

Looking at (e)BPF for wifi, I notice that everything is big endian in
loads from the frame - and wifi is all little endian.

Obviously, this can be worked around by doing byte-loads and swapping
in the program, but it'll be more efficient to not do that.

Do you think it's possible to add little-endian load instructions? Or
perhaps there should be a conversion function from BE to LE?

Thanks,
johannes

             reply	other threads:[~2017-04-11 10:38 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-11 10:38 Johannes Berg [this message]
2017-04-11 11:06 ` eBPF - little-endian load instructions? Daniel Borkmann
2017-04-11 11:15   ` Johannes Berg
2017-04-11 11:22     ` Daniel Borkmann
2017-04-11 11:26       ` Johannes Berg
2017-04-12 13:02   ` Johannes Berg
2017-04-12 16:58     ` Alexei Starovoitov
2017-04-12 19:38       ` Johannes Berg
2017-04-13  3:08         ` Alexei Starovoitov
2017-04-13  5:58           ` Johannes Berg
2017-04-14 18:42             ` Alexei Starovoitov
2017-04-15  7:06               ` Johannes Berg

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