From: Richard Cochran <richardcochran@gmail.com>
To: "N, Mugunthan V" <mugunthanvnm@ti.com>
Cc: "netdev@vger.kernel.org" <netdev@vger.kernel.org>,
"davem@davemloft.net" <davem@davemloft.net>
Subject: Re: [PATCH 2/6] drivers: net: ethernet: davinci_cpdma: add clear api for statistics interrupt
Date: Mon, 22 Oct 2012 13:31:04 +0200 [thread overview]
Message-ID: <20121022113103.GC2285@netboy.at.omicron.at> (raw)
In-Reply-To: <EB1619762EAF8B4E97A227FB77B7E0293E9FD6BB@DBDE01.ent.ti.com>
On Mon, Oct 22, 2012 at 10:42:26AM +0000, N, Mugunthan V wrote:
>
> What happens when Hardware timestamps are used?
They are not being used.
> It will be good to
> notify the application immediately using the interrupts instead of
> using workqueue which can delay the event in hardware for max about
> HZ*8.
Yes, it would make sense to use the interrupt in that case, but I did
not see any code supporting external events. In any case, I still want
to handle the overflow in the same way as in the other PHC drivers,
for the sake of consistency, and to avoid wasting CPU time "in
interrupt" with silly counter overflow code.
Thanks,
Richard
next prev parent reply other threads:[~2012-10-22 11:31 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-16 22:45 [PATCH 0/6] Add CPTS PTP driver support Mugunthan V N
2012-10-16 22:45 ` [PATCH 1/6] drivers: net: ethernet: cpsw: add support for CPSW register offset changes in different IP version Mugunthan V N
2012-10-18 2:45 ` Richard Cochran
2012-10-22 10:39 ` N, Mugunthan V
2012-10-22 11:23 ` Richard Cochran
2012-10-22 12:19 ` N, Mugunthan V
2012-10-22 12:25 ` Richard Cochran
2012-10-16 22:45 ` [PATCH 2/6] drivers: net: ethernet: davinci_cpdma: add clear api for statistics interrupt Mugunthan V N
2012-10-18 2:48 ` Richard Cochran
2012-10-22 10:42 ` N, Mugunthan V
2012-10-22 11:31 ` Richard Cochran [this message]
2012-10-16 22:45 ` [PATCH 3/6] drivers: net: ethernet: cpsw: add multicast address to ALE table Mugunthan V N
2012-10-18 2:49 ` Richard Cochran
2012-10-21 11:26 ` Richard Cochran
2012-10-22 10:46 ` N, Mugunthan V
2012-10-16 22:45 ` [PATCH 4/6] ptp: add api to get ptp seq id and event type from skb Mugunthan V N
2012-10-16 23:10 ` Ben Hutchings
2012-10-17 13:48 ` N, Mugunthan V
2012-10-18 2:55 ` Richard Cochran
2012-10-22 10:46 ` N, Mugunthan V
2012-10-22 11:36 ` Richard Cochran
2012-10-22 12:32 ` N, Mugunthan V
2012-10-22 12:37 ` Richard Cochran
2012-10-16 22:45 ` [PATCH 5/6] drivers: net: ethernet: cpts: implement cpts hardware clock Mugunthan V N
2012-10-20 13:43 ` Richard Cochran
2012-10-22 10:55 ` N, Mugunthan V
2012-10-22 11:41 ` Richard Cochran
2012-10-22 11:44 ` Richard Cochran
2012-10-22 12:38 ` N, Mugunthan V
2012-10-22 11:46 ` Richard Cochran
2012-10-22 12:42 ` N, Mugunthan V
2012-10-16 22:45 ` [PATCH 6/6] drivers: net: ethernet: cpsw: implement timestamping capabilities in cpsw Mugunthan V N
2012-10-21 18:11 ` Richard Cochran
2012-10-21 18:46 ` [PATCH 0/6] Add CPTS PTP driver support Richard Cochran
2012-10-22 10:51 ` N, Mugunthan V
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