From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 53D5830F7F3 for ; Wed, 6 May 2026 14:52:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778079145; cv=none; b=Ib/lcRvOJmvXFaPIrMAuTXl194reSTVWrPkjoS7h0n5oimxtrsLnEuQ7qEKtWxlqLssi81et/4TU7zlyxqAPW0nNvvz/3Ppj3V9X1pE6mTIUIsPBoQxHJHrUyzZQibcarOrNIsoynE2ziBr1RvlL6gXAH0EyBm/zOdn+jOLyZE4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778079145; c=relaxed/simple; bh=ybo0x2DELfoMClYUY2vQRsuY6NFMvUA+XvYna5IjC70=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=sakTmTeOzWoGpBRmlmfgd92y//cn2ilQT+bdv5Tzt56iKpcvQXUaZ6/eQttcD/Cgy7qlx7ImfSj1hKQKD1F3lto4/76q2V+GUnjTzxO13rYsJQMmF35jAtNzG/yV2jXXzZubeg1VHl8VjPj+DVsvMtNR9HmRWATSS0BMu79XBb8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=mXYOcYfY; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="mXYOcYfY" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1DD9AC2BCB0; Wed, 6 May 2026 14:52:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1778079144; bh=ybo0x2DELfoMClYUY2vQRsuY6NFMvUA+XvYna5IjC70=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=mXYOcYfY3+tHdqILq7/+sKYrqhLBFCVK98HhZ8D5yRsevGJa5kOaiK+PfIIJSVj1M Bi8EFpXJ9POD7GgJJ4gTOWh5W6XIlBtg7oud/lwhAvbwWYIe7u2RQlbEWFohop9ozK WPJTUpGfOl23DmhnhDeptgXG8hYLriPzV/UxjdxrH6M4QUpHUUWnl11vnyJAByosx5 PPCTNF4EYzBI2TdxA3CdbaZH2fBIfysJJrFabHc+31+Tb058c3F9h0NkCczgEXUsRl zKvYCkQ/8z+Bz2sKVsRroxW3UBycOLJiaVXlsfgHhLQ23tBoulutDkrvekqI/DgNPg D679mBiz7Sv1A== Date: Wed, 6 May 2026 16:52:20 +0200 From: Niklas Cassel To: Tommy Kelly Cc: linux-ide@vger.kernel.org, Damien Le Moal , Tejun Heo , John Garry , "Martin K. Petersen" Subject: Re: [PATCH 0/3] ata: fix deferred QC handling for port multipliers Message-ID: References: <20260501125410.1204490-5-cassel@kernel.org> <88ea5d12-520b-4022-9faa-3ea879a8bfb6@tkel.ly> Precedence: bulk X-Mailing-List: linux-ide@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <88ea5d12-520b-4022-9faa-3ea879a8bfb6@tkel.ly> Hello Tommy, On Sat, May 02, 2026 at 05:59:12PM -0700, Tommy Kelly wrote: > > Yes, this patch series fixed the regression for me with a CBS Port Multiplier. > > Here are the commits I tested with: > > > (HEAD -> fedora-7.0-libata) ata: libata-scsi: do not needlessly defer commands when using PMP with FBS > > ata: libata-scsi: do not use the deferred QC feature on PMPs with CBS > > ata: libata-pmp: fix ata_pmp_qc_defer_cmd_switch() > > ata: ahci: fail probe if BAR too small for claimed ports > > ata: libahci: use ahci_nr_ports() helper > > ata: pata_parport: switch to dynamic root device > > Merge remote-tracking branch 'libata/for-7.1' into fedora-7.0-libata > > (tag: kernel-7.0.3-0, kernel-ark/fedora-7.0, fedora-7.0) [redhat] kernel-7.0.3-0 > > Merge Linux v7.0.3 > > (tag: v7.0.3, kernel-ark/linux-7.0.y, linux-7.0.y) Linux 7.0.3 > > And here's some logs showing ata_id (non-NCQ) resolving immediately. > After, I'm able to boot and mount and use the filesystem no problem. > No errors and no timeouts. > > > Mar 12 17:00:10 localhost kernel: ahci-dwc fc800000.sata: port 0 is not capable of FBS > > May 02 17:12:39 (udev-worker)[874]: sdd: Starting 'ata_id --export /dev/sdd' > > May 02 17:12:39 (udev-worker)[874]: sdd: 'ata_id --export /dev/sdd'(out) 'ID_ATA=1' > > May 02 17:12:39 (udev-worker)[874]: sdd: Process 'ata_id --export /dev/sdd' succeeded. This all looks normal to me. Thank you very much for testing! Kind regards, Niklas