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From: Kalle Valo <kvalo@qca.qualcomm.com>
To: Peter Oh <poh@qca.qualcomm.com>
Cc: linux-wireless@vger.kernel.org, ath10k@lists.infradead.org
Subject: Re: [PATCH v2] ath: use PRI value given by spec for fixed PRI
Date: Sun, 27 Sep 2015 15:53:15 +0300	[thread overview]
Message-ID: <87fv20c9c4.fsf@kamboji.qca.qualcomm.com> (raw)
In-Reply-To: <f2542c539e8c0eab1b0cbd184dceeb412a3e4516.1441821191.git.poh@qca.qualcomm.com> (Peter Oh's message of "Wed, 9 Sep 2015 10:53:23 -0700")

Peter Oh <poh@qca.qualcomm.com> writes:

> PRI value is used as divider when DFS detector analyzes candidate
> radar pulses.
> If PRI deviation is big from its origin PRI, DFS detector could miss
> valid radar reports since HW often misses detecting radar pulses and
> causes long interval value of pulses.
>
> For instance from practical results, if runtime PRI is calculated as
> 1431 for fixed PRI value of 1428 and delta timestamp logs 15719,
> the modular remainder will be 1409 and the delta between the remainder
> and runtime PRI is 22 that is bigger than PRI tolerance which is 16.
> As a result this radar report will be ignored even though it's valid.
>
> By using spec defined PRI for fixed PRI, we can correct this error.
>
> Signed-off-by: Peter Oh <poh@qca.qualcomm.com>

Thanks, applied.

-- 
Kalle Valo

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WARNING: multiple messages have this Message-ID (diff)
From: Kalle Valo <kvalo@qca.qualcomm.com>
To: Peter Oh <poh@qca.qualcomm.com>
Cc: <ath10k@lists.infradead.org>, <linux-wireless@vger.kernel.org>
Subject: Re: [PATCH v2] ath: use PRI value given by spec for fixed PRI
Date: Sun, 27 Sep 2015 15:53:15 +0300	[thread overview]
Message-ID: <87fv20c9c4.fsf@kamboji.qca.qualcomm.com> (raw)
In-Reply-To: <f2542c539e8c0eab1b0cbd184dceeb412a3e4516.1441821191.git.poh@qca.qualcomm.com> (Peter Oh's message of "Wed, 9 Sep 2015 10:53:23 -0700")

Peter Oh <poh@qca.qualcomm.com> writes:

> PRI value is used as divider when DFS detector analyzes candidate
> radar pulses.
> If PRI deviation is big from its origin PRI, DFS detector could miss
> valid radar reports since HW often misses detecting radar pulses and
> causes long interval value of pulses.
>
> For instance from practical results, if runtime PRI is calculated as
> 1431 for fixed PRI value of 1428 and delta timestamp logs 15719,
> the modular remainder will be 1409 and the delta between the remainder
> and runtime PRI is 22 that is bigger than PRI tolerance which is 16.
> As a result this radar report will be ignored even though it's valid.
>
> By using spec defined PRI for fixed PRI, we can correct this error.
>
> Signed-off-by: Peter Oh <poh@qca.qualcomm.com>

Thanks, applied.

-- 
Kalle Valo

  reply	other threads:[~2015-09-27 12:54 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-09-09 17:53 [PATCH v2] ath: use PRI value given by spec for fixed PRI Peter Oh
2015-09-09 17:53 ` Peter Oh
2015-09-27 12:53 ` Kalle Valo [this message]
2015-09-27 12:53   ` Kalle Valo
  -- strict thread matches above, loose matches on Subject: below --
2015-09-08 17:04 Peter Oh
2015-09-08 17:04 ` Peter Oh
2015-09-09  9:55 ` Kalle Valo
2015-09-09  9:55   ` Kalle Valo

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