From: Micha Nelissen <micha@neli.hopto.org>
To: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: linuxppc-dev@ozlabs.org, akpm@linux-foundation.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/9] RapidIO, powerpc/85xx: modify RIO port-write interrupt handler
Date: Mon, 16 Aug 2010 14:12:50 +0200 [thread overview]
Message-ID: <4C692B42.9050407@neli.hopto.org> (raw)
In-Reply-To: <1281712686-31308-3-git-send-email-alexandre.bounine@idt.com>
Alexandre Bounine wrote:
> - Rearranged RIO port-write interrupt handling to perform message buffering
> as soon as possible.
I don't understand this comment: you still schedule work to read the
port-write queue; so how is this message buffering performed as soon as
possible?
> - Modified to disable port-write controller when clearing Transaction Error (TE)
> bit.
> /* Schedule deferred processing if PW was received */
> - if (ipwsr & RIO_IPWSR_QFI) {
> + if ((ipwmr & RIO_IPWMR_QFIE) && (ipwsr & RIO_IPWSR_QFI)) {
Why check the QFIE bit also?
> +pw_done:
> + if (epwisr & 0x80000000) {
Magic value.
Micha
next prev parent reply other threads:[~2010-08-16 12:22 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-13 15:17 [PATCH 0/9] RapidIO: Set of patches to add Gen2 switches Alexandre Bounine
2010-08-13 15:17 ` [PATCH 1/9] RapidIO: fix RapidIO sysfs hierarchy Alexandre Bounine
2010-08-13 15:17 ` [PATCH 2/9] RapidIO, powerpc/85xx: modify RIO port-write interrupt handler Alexandre Bounine
2010-08-16 12:12 ` Micha Nelissen [this message]
2010-08-16 15:27 ` Bounine, Alexandre
2010-08-17 7:12 ` Micha Nelissen
2010-08-17 17:16 ` Bounine, Alexandre
2010-08-13 15:18 ` [PATCH 3/9] RapidIO: Add the ingress port number into the RIO switch data structure Alexandre Bounine
2010-08-16 12:14 ` Micha Nelissen
2010-08-16 13:40 ` Bounine, Alexandre
2010-08-13 15:18 ` [PATCH 4/9] RapidIO: Add relation links between RIO device structures Alexandre Bounine
2010-08-16 12:18 ` Micha Nelissen
2010-08-16 14:00 ` Bounine, Alexandre
2010-08-17 7:08 ` Micha Nelissen
2010-08-17 17:47 ` Bounine, Alexandre
2010-08-13 15:18 ` [PATCH 5/9] RapidIO: Add default handler for error_stopped state Alexandre Bounine
2010-08-16 12:21 ` Micha Nelissen
2010-08-16 14:47 ` Bounine, Alexandre
2010-08-13 15:18 ` [PATCH 6/9] RapidIO: Add switch-specific sysfs initialization callback Alexandre Bounine
2010-08-16 12:25 ` Micha Nelissen
2010-08-16 17:10 ` Bounine, Alexandre
2010-08-17 7:18 ` Micha Nelissen
2010-08-17 17:20 ` Bounine, Alexandre
2010-08-13 15:18 ` [PATCH 7/9] RapidIO: Add handling for PW message from a lost device Alexandre Bounine
2010-08-16 12:29 ` Micha Nelissen
2010-08-16 18:02 ` Bounine, Alexandre
2010-08-17 7:22 ` Micha Nelissen
2010-08-17 12:44 ` Bounine, Alexandre
2010-08-13 15:18 ` [PATCH 8/9] RapidIO: Add device access check into the enumeration Alexandre Bounine
2010-08-13 15:18 ` [PATCH 9/9] RapidIO: Add support for IDT CPS Gen2 switches Alexandre Bounine
2010-08-16 12:36 ` Micha Nelissen
2010-08-16 18:30 ` Bounine, Alexandre
2010-08-16 12:30 ` [PATCH 0/9] RapidIO: Set of patches to add " Micha Nelissen
2010-08-16 18:18 ` Bounine, Alexandre
2010-08-17 7:31 ` Micha Nelissen
2010-08-17 18:13 ` Bounine, Alexandre
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