From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jens Axboe Subject: Re: [PATCH] AHCI PCI MSI support, update 1 Date: Wed, 1 Jun 2005 07:44:26 +0200 Message-ID: <20050601054422.GA1441@suse.de> References: <429C8978.4060601@pobox.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from ns.virtualhost.dk ([195.184.98.160]:5075 "EHLO virtualhost.dk") by vger.kernel.org with ESMTP id S261249AbVFAFne (ORCPT ); Wed, 1 Jun 2005 01:43:34 -0400 Content-Disposition: inline In-Reply-To: <429C8978.4060601@pobox.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Jeff Garzik Cc: "linux-ide@vger.kernel.org" , Linux Kernel , Andrew Morton On Tue, May 31 2005, Jeff Garzik wrote: > > I just updated the AHCI PCI MSI support patch to support the latest > ->host_stop() semantics changes that just made it into upstream. > > This patch, until its merged, may always be found in the 'ahci-msi' > branch of > rsync://rsync.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev.git Tested on an ich6 based system, with this ahci controller: centera:~ # lspci -s 0000:00:1f.2 -v 0000:00:1f.2 IDE interface: Intel Corp. I/O Controller Hub SATA cc=raid (rev 03) (prog-if 8f [Master SecP SecO PriP PriO]) Subsystem: Tyan Computer: Unknown device 5150 Flags: bus master, 66Mhz, medium devsel, latency 0, IRQ 169 I/O ports at e900 I/O ports at ea00 [size=4] I/O ports at eb00 [size=8] I/O ports at ec00 [size=4] I/O ports at ed00 [size=16] Memory at d03c3000 (32-bit, non-prefetchable) [size=1K] Capabilities: [70] Power Management version 2 And system boots and works fine, MSI isn't enabled of course. Also tested on an ich7 based system (945G express chipset), with this ahci controller: nelson:~ # lspci -s 0000:00:1f.2 -v 0000:00:1f.2 Class 0106: Intel Corporation I/O Controller Hub SATA cc=AHCI (rev 01) (prog-if 01) Subsystem: Intel Corporation: Unknown device e302 Flags: bus master, 66Mhz, medium devsel, latency 0, IRQ 201 I/O ports at 40d8 [size=8] I/O ports at 40f4 [size=4] I/O ports at 40d0 [size=8] I/O ports at 40f0 [size=4] I/O ports at 4020 [size=32] Memory at 48304000 (32-bit, non-prefetchable) [size=1K] Capabilities: [80] Message Signalled Interrupts: 64bit- Queue=0/0 Enable+ Capabilities: [70] Power Management version 2 Capabilities: [a8] #12 [0010] System boots and works fine (typing this message here), MSI is enabled. I double checked with an added printk :-) So that's at least one ACK for you. Now running NCQ and MSI enabled ahci, I'm not sure SATA gets any better! -- Jens Axboe