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From: Ben Greear <greearb@candelatech.com>
To: Michal Kazior <michal.kazior@tieto.com>
Cc: linux-wireless <linux-wireless@vger.kernel.org>,
	"ath10k@lists.infradead.org" <ath10k@lists.infradead.org>
Subject: Re: [PATCH] ath10k: request firmware flush in ath10k_flush.
Date: Tue, 23 Sep 2014 07:19:54 -0700	[thread overview]
Message-ID: <5421818A.9040501@candelatech.com> (raw)
In-Reply-To: <CA+BoTQm1rZO+yBbYxihpgEvR1cGZWS4Pr0AP+KMODcG4jpd_jQ@mail.gmail.com>



On 09/23/2014 02:16 AM, Michal Kazior wrote:
> On 19 September 2014 20:28,  <greearb@candelatech.com> wrote:
> [...]
>> +       /* If we are CT firmware, ask it to flush all tids on all peers on
>> +        * all vdevs.  Normal firmware will just crash if you do this.
>> +        */
>> +       if (test_bit(ATH10K_FW_FEATURE_WMI_10X_CT, ar->fw_features))
>> +               ath10k_wmi_peer_flush(ar, 0xFFFFFFFF, peer_addr, 0xFFFFFFFF);
>
> I recall you've explained this some time ago, but can you refresh my
> memory, please? Is this any different from iterating over all peers
> and flushing each? Or does your firmware do so extra magic that is
> impossible to do with normal firmware commands?

My firmware does that iteration internally.

You could probably do that in the driver, but it would be a lot
of messages (for all vdevs, all peers, all tids)...
I was not sure if there were limits to the number
of commands you should attempt during the flush...

Thanks,
Ben


-- 
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com

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WARNING: multiple messages have this Message-ID (diff)
From: Ben Greear <greearb@candelatech.com>
To: Michal Kazior <michal.kazior@tieto.com>
Cc: linux-wireless <linux-wireless@vger.kernel.org>,
	"ath10k@lists.infradead.org" <ath10k@lists.infradead.org>
Subject: Re: [PATCH] ath10k: request firmware flush in ath10k_flush.
Date: Tue, 23 Sep 2014 07:19:54 -0700	[thread overview]
Message-ID: <5421818A.9040501@candelatech.com> (raw)
In-Reply-To: <CA+BoTQm1rZO+yBbYxihpgEvR1cGZWS4Pr0AP+KMODcG4jpd_jQ@mail.gmail.com>



On 09/23/2014 02:16 AM, Michal Kazior wrote:
> On 19 September 2014 20:28,  <greearb@candelatech.com> wrote:
> [...]
>> +       /* If we are CT firmware, ask it to flush all tids on all peers on
>> +        * all vdevs.  Normal firmware will just crash if you do this.
>> +        */
>> +       if (test_bit(ATH10K_FW_FEATURE_WMI_10X_CT, ar->fw_features))
>> +               ath10k_wmi_peer_flush(ar, 0xFFFFFFFF, peer_addr, 0xFFFFFFFF);
>
> I recall you've explained this some time ago, but can you refresh my
> memory, please? Is this any different from iterating over all peers
> and flushing each? Or does your firmware do so extra magic that is
> impossible to do with normal firmware commands?

My firmware does that iteration internally.

You could probably do that in the driver, but it would be a lot
of messages (for all vdevs, all peers, all tids)...
I was not sure if there were limits to the number
of commands you should attempt during the flush...

Thanks,
Ben


-- 
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com

  reply	other threads:[~2014-09-23 14:20 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-09-19 18:28 [PATCH] ath10k: request firmware flush in ath10k_flush greearb
2014-09-19 18:28 ` greearb
2014-09-23  9:16 ` Michal Kazior
2014-09-23  9:16   ` Michal Kazior
2014-09-23 14:19   ` Ben Greear [this message]
2014-09-23 14:19     ` Ben Greear
2014-09-24  6:50     ` Michal Kazior
2014-09-24  6:50       ` Michal Kazior
2014-09-24 16:13       ` Ben Greear
2014-09-24 16:13         ` Ben Greear
2014-09-29 10:53       ` Kalle Valo
2014-09-29 10:53         ` Kalle Valo
2014-09-29 15:58         ` Ben Greear
2014-09-29 15:58           ` Ben Greear

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