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From: Denis Kenzior <denkenz@gmail.com>
To: Arend Van Spriel <arend.vanspriel@broadcom.com>,
	Alexander Wetzel <alexander@wetzel-home.de>,
	Kalle Valo <kvalo@codeaurora.org>,
	Maya Erez <merez@codeaurora.org>
Cc: Ahmad Masri <amasri@codeaurora.org>,
	linux-wireless@vger.kernel.org, wil6210@qti.qualcomm.com
Subject: Re: [PATCH 04/11] wil6210: fix PTK re-key race
Date: Fri, 13 Sep 2019 09:33:43 -0500
Message-ID: <13f699ef-16c2-3ba7-79a0-0934f5e39368@gmail.com> (raw)
In-Reply-To: <74c0e328-320c-0999-836e-1bfb0fa224ff@broadcom.com>

Hi Arend, Alexander,

> Basically, we now have two bypass methods dealing with the same/similar 
> issue:
> 
> 1) bypass the QDISC.
> 2) bypass network stack entirely with CONTROL_PORT.

It also raises the question in my mind as to why we have two ways of 
doing the same thing?  From the discussion so far it also sounds like 
each requires somewhat different / special handling in the driver. 
Wouldn't it make sense to deprecate one and encourage drivers to 
implement the other?

CONTROL_PORT was added specifically to take care of the re-keying races 
and can be extended with additional attributes over time, as needed 
(perhaps for extended key id, etc).  Also note that in our testing 
CONTROL_PORT is _way_ faster than PAE socket...

Regards,
-Denis

  reply index

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-08  8:32 [PATCH 00/11] wil6210 patches Maya Erez
2019-09-08  8:32 ` [PATCH 01/11] wil6210: add wil_netif_rx() helper function Maya Erez
2019-09-12 15:08   ` Kalle Valo
2019-09-08  8:32 ` [PATCH 02/11] wil6210: add support for pci linkdown recovery Maya Erez
2019-09-12 15:22   ` Kalle Valo
2019-09-08  8:32 ` [PATCH 03/11] wil6210: add debugfs to show PMC ring content Maya Erez
2019-09-08  8:32 ` [PATCH 04/11] wil6210: fix PTK re-key race Maya Erez
2019-09-10 13:23   ` Kalle Valo
2019-09-11  7:50     ` Arend Van Spriel
2019-09-11 18:32     ` Alexander Wetzel
2019-09-12 17:39       ` Denis Kenzior
2019-09-12 21:04         ` Alexander Wetzel
2019-09-13  8:04           ` Arend Van Spriel
2019-09-13 14:33             ` Denis Kenzior [this message]
2019-09-13 20:48               ` Alexander Wetzel
2019-09-17 15:32                 ` Denis Kenzior
2019-09-13 18:43             ` Alexander Wetzel
2019-09-08  8:32 ` [PATCH 05/11] wil6210: make sure DR bit is read before rest of the status message Maya Erez
2019-09-08  8:32 ` [PATCH 06/11] wil6210: verify cid value is valid Maya Erez
2019-09-08  8:32 ` [PATCH 07/11] wil6210: properly initialize discovery_expired_work Maya Erez
2019-09-08  8:32 ` [PATCH 08/11] wil6210: report boottime_ns in scan results Maya Erez
2019-09-08  8:32 ` [PATCH 09/11] wil6210: use writel_relaxed in wil_debugfs_iomem_x32_set Maya Erez
2019-09-08  8:32 ` [PATCH 10/11] wil6210: fix RX short frame check Maya Erez
2019-09-08  8:32 ` [PATCH 11/11] wil6210: ignore reset errors for FW during probe Maya Erez

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