From: Frans Klaver <fransklaver@gmail.com>
To: balbi@ti.com, Frans Klaver <frans.klaver@xsens.com>
Cc: Tony Lindgren <tony@atomide.com>,
Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Kumar Gala <galak@codeaurora.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Alexey Pelykh <alexey.pelykh@gmail.com>,
Jiri Slaby <jslaby@suse.cz>,
linux-serial@vger.kernel.org, linux-omap@vger.kernel.org,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH 3/4] tty: omap-serial: use threaded interrupt handler
Date: Fri, 22 Aug 2014 00:07:22 +0200 [thread overview]
Message-ID: <c5a0e820-cd57-43d0-85db-1297a83861c5@email.android.com> (raw)
In-Reply-To: <20140821214840.GU11146@saruman.home>
On August 21, 2014 11:48:40 PM CEST, Felipe Balbi <balbi@ti.com> wrote:
>Hi,
>
>On Thu, Aug 21, 2014 at 11:41:17PM +0200, Frans Klaver wrote:
>> On Wed, Aug 20, 2014 at 11:06:05AM -0500, Felipe Balbi wrote:
>> > On Wed, Aug 20, 2014 at 08:40:28AM +0200, Frans Klaver wrote:
>> > > On Tue, Aug 19, 2014 at 01:57:02PM -0500, Felipe Balbi wrote:
>> > > > On Tue, Aug 19, 2014 at 02:14:47PM +0200, Frans Klaver wrote:
>> > > > > At 3.6Mbaud, with slightly over 2Mbit/s data coming in, we
>see 1600 uart
>> > > > > rx buffer overflows within 30 seconds. Threading the
>interrupt handling reduces
>> > > > > this to about 170 overflows in 10 minutes.
>> > > >
>> > > > Can you try Sebastian Siewior's patches for 8250_omap and 8250
>dma
>> > > > support ? That should help you a lot.
>> > >
>> > > I'll have a look at that series. Thanks for pointing it out.
>>
>> I have had a look at Sebastian's series, but I'm not convinced
>> yet that we should use it. So far the serial console seems to be
>> missing data every now and then. I haven't gotten around to testing
>our
>> high traffic application yet.
>
>as any new driver, there are bugs to be fixed. How about reporting the
>ones you found together with a way of reproducing them so they can be
>fixed ?
Yes, definitely.
Cheers,
Frans
WARNING: multiple messages have this Message-ID (diff)
From: fransklaver@gmail.com (Frans Klaver)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC PATCH 3/4] tty: omap-serial: use threaded interrupt handler
Date: Fri, 22 Aug 2014 00:07:22 +0200 [thread overview]
Message-ID: <c5a0e820-cd57-43d0-85db-1297a83861c5@email.android.com> (raw)
In-Reply-To: <20140821214840.GU11146@saruman.home>
On August 21, 2014 11:48:40 PM CEST, Felipe Balbi <balbi@ti.com> wrote:
>Hi,
>
>On Thu, Aug 21, 2014 at 11:41:17PM +0200, Frans Klaver wrote:
>> On Wed, Aug 20, 2014 at 11:06:05AM -0500, Felipe Balbi wrote:
>> > On Wed, Aug 20, 2014 at 08:40:28AM +0200, Frans Klaver wrote:
>> > > On Tue, Aug 19, 2014 at 01:57:02PM -0500, Felipe Balbi wrote:
>> > > > On Tue, Aug 19, 2014 at 02:14:47PM +0200, Frans Klaver wrote:
>> > > > > At 3.6Mbaud, with slightly over 2Mbit/s data coming in, we
>see 1600 uart
>> > > > > rx buffer overflows within 30 seconds. Threading the
>interrupt handling reduces
>> > > > > this to about 170 overflows in 10 minutes.
>> > > >
>> > > > Can you try Sebastian Siewior's patches for 8250_omap and 8250
>dma
>> > > > support ? That should help you a lot.
>> > >
>> > > I'll have a look at that series. Thanks for pointing it out.
>>
>> I have had a look at Sebastian's series, but I'm not convinced
>> yet that we should use it. So far the serial console seems to be
>> missing data every now and then. I haven't gotten around to testing
>our
>> high traffic application yet.
>
>as any new driver, there are bugs to be fixed. How about reporting the
>ones you found together with a way of reproducing them so they can be
>fixed ?
Yes, definitely.
Cheers,
Frans
next prev parent reply other threads:[~2014-08-21 22:07 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-29 14:52 [RFC PATCH 0/3] omap-serial high-speed fixes/improvements Frans Klaver
2014-07-29 14:52 ` Frans Klaver
2014-07-29 14:52 ` [PATCH 1/3] tty: omap-serial: prevent division by zero Frans Klaver
2014-07-29 15:00 ` Frans Klaver
2014-07-29 15:00 ` Frans Klaver
2014-07-29 14:52 ` [PATCH 2/3] tty: omap-serial: use threaded interrupt handler Frans Klaver
2014-07-29 14:52 ` [PATCH 3/3] tty: omap-serial: support setting of hardware flow control in dts Frans Klaver
2014-07-29 15:02 ` [RFC PATCH 0/3] omap-serial high-speed fixes/improvements Frans Klaver
2014-07-29 15:02 ` Frans Klaver
2014-07-29 15:02 ` [PATCH 1/3] tty: omap-serial: prevent division by zero Frans Klaver
2014-07-29 15:02 ` Frans Klaver
2014-07-29 15:02 ` [PATCH 2/3] tty: omap-serial: use threaded interrupt handler Frans Klaver
2014-07-29 15:02 ` Frans Klaver
2014-07-29 15:02 ` [PATCH 3/3] tty: omap-serial: support setting of hardware flow control in dts Frans Klaver
2014-07-29 15:02 ` Frans Klaver
2014-08-11 10:09 ` [RFC PATCH 0/3] omap-serial high-speed fixes/improvements Frans Klaver
2014-08-11 10:09 ` Frans Klaver
2014-08-18 13:45 ` Felipe Balbi
2014-08-18 13:45 ` Felipe Balbi
2014-08-18 14:45 ` Frans Klaver
2014-08-18 14:45 ` Frans Klaver
2014-08-19 12:14 ` [RFC PATCHv2 0/4] " Frans Klaver
2014-08-19 12:14 ` Frans Klaver
2014-08-19 12:14 ` Frans Klaver
2014-08-19 12:14 ` [PATCH 1/4] tty: omap-serial: pull out calculation from baud_is_mode16 Frans Klaver
2014-08-19 12:14 ` Frans Klaver
2014-08-19 12:14 ` Frans Klaver
2014-08-19 12:14 ` [PATCH 2/4] tty: omap-serial: prevent division by zero Frans Klaver
2014-08-19 12:14 ` Frans Klaver
2014-08-19 12:14 ` Frans Klaver
2014-08-19 12:14 ` [RFC PATCH 3/4] tty: omap-serial: use threaded interrupt handler Frans Klaver
2014-08-19 12:14 ` Frans Klaver
2014-08-19 12:14 ` Frans Klaver
2014-08-19 18:57 ` Felipe Balbi
2014-08-19 18:57 ` Felipe Balbi
2014-08-19 18:57 ` Felipe Balbi
2014-08-20 6:40 ` Frans Klaver
2014-08-20 6:40 ` Frans Klaver
2014-08-20 6:40 ` Frans Klaver
2014-08-20 16:06 ` Felipe Balbi
2014-08-20 16:06 ` Felipe Balbi
2014-08-20 16:06 ` Felipe Balbi
2014-08-21 21:41 ` Frans Klaver
2014-08-21 21:41 ` Frans Klaver
2014-08-21 21:41 ` Frans Klaver
2014-08-21 21:48 ` Felipe Balbi
2014-08-21 21:48 ` Felipe Balbi
2014-08-21 21:48 ` Felipe Balbi
2014-08-21 22:07 ` Frans Klaver [this message]
2014-08-21 22:07 ` Frans Klaver
2014-08-22 14:02 ` Frans Klaver
2014-08-22 14:02 ` Frans Klaver
2014-08-22 14:02 ` Frans Klaver
2014-08-19 12:14 ` [PATCH 4/4] tty: omap-serial: support setting of hardware flow control in dts Frans Klaver
2014-08-19 12:14 ` Frans Klaver
2014-08-19 12:14 ` Frans Klaver
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