From owner-freebsd-usb@FreeBSD.ORG  Wed Jan 12 22:03:39 2011
Return-Path: <owner-freebsd-usb@FreeBSD.ORG>
Delivered-To: freebsd-usb@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 55BEA106566B
	for <freebsd-usb@freebsd.org>; Wed, 12 Jan 2011 22:03:39 +0000 (UTC)
	(envelope-from jhb@freebsd.org)
Received: from cyrus.watson.org (cyrus.watson.org [65.122.17.42])
	by mx1.freebsd.org (Postfix) with ESMTP id 286F88FC19
	for <freebsd-usb@freebsd.org>; Wed, 12 Jan 2011 22:03:39 +0000 (UTC)
Received: from bigwig.baldwin.cx (66.111.2.69.static.nyinternet.net
	[66.111.2.69])
	by cyrus.watson.org (Postfix) with ESMTPSA id C118946B3B
	for <freebsd-usb@freebsd.org>; Wed, 12 Jan 2011 17:03:38 -0500 (EST)
Received: from jhbbsd.localnet (smtp.hudson-trading.com [209.249.190.9])
	by bigwig.baldwin.cx (Postfix) with ESMTPSA id AE08F8A01D
	for <freebsd-usb@freebsd.org>; Wed, 12 Jan 2011 17:03:37 -0500 (EST)
From: John Baldwin <jhb@freebsd.org>
To: freebsd-usb@freebsd.org
Date: Wed, 12 Jan 2011 17:03:37 -0500
User-Agent: KMail/1.13.5 (FreeBSD/7.4-CBSD-20110107; KDE/4.4.5; amd64; ; )
MIME-Version: 1.0
Content-Type: Text/Plain;
  charset="us-ascii"
Content-Transfer-Encoding: 7bit
Message-Id: <201101121703.37226.jhb@freebsd.org>
X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.2.6
	(bigwig.baldwin.cx); Wed, 12 Jan 2011 17:03:37 -0500 (EST)
X-Virus-Scanned: clamav-milter 0.96.3 at bigwig.baldwin.cx
X-Virus-Status: Clean
X-Spam-Status: No, score=0.7 required=4.2 tests=BAYES_00,TO_NO_BRKTS_DIRECT
	autolearn=no version=3.3.1
X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on bigwig.baldwin.cx
Subject: Adjust USB kthread priorities
X-BeenThere: freebsd-usb@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: FreeBSD support for USB <freebsd-usb.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-usb>,
	<mailto:freebsd-usb-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-usb>
List-Post: <mailto:freebsd-usb@freebsd.org>
List-Help: <mailto:freebsd-usb-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-usb>,
	<mailto:freebsd-usb-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 12 Jan 2011 22:03:39 -0000

Currently the USB kthreads created for each USB bus use hardware interrupt
priorities.  I think this is wrong and that they should use software interrupt
priorities instead.  This patch would do that:

--- //depot/projects/smpng/sys/dev/usb/usb_process.h	2009-08-25 21:12:15.000000000 0000
+++ //depot/user/jhb/socket/dev/usb/usb_process.h	2010-12-21 20:30:04.000000000 0000
@@ -27,11 +27,13 @@
 #ifndef _USB_PROCESS_H_
 #define	_USB_PROCESS_H_
 
+#include <sys/interrupt.h>
 #include <sys/priority.h>
+#include <sys/runq.h>
 
 /* defines */
-#define	USB_PRI_HIGH PI_NET
-#define	USB_PRI_MED PI_DISK
+#define	USB_PRI_HIGH	PI_SWI(SWI_NET)
+#define	USB_PRI_MED	PI_SWI(SWI_CAMBIO)
 
 #define	USB_PROC_WAIT_TIMEOUT 2
 #define	USB_PROC_WAIT_DRAIN   1

-- 
John Baldwin