From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 42364C433FE for ; Tue, 1 Nov 2022 19:53:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229894AbiKATxU (ORCPT ); Tue, 1 Nov 2022 15:53:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42668 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229487AbiKATxU (ORCPT ); Tue, 1 Nov 2022 15:53:20 -0400 X-Greylist: delayed 1801 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Tue, 01 Nov 2022 12:53:16 PDT Received: from mx1.wiredblade.com (mx1.wiredblade.com [162.216.242.37]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 874881BEA4 for ; Tue, 1 Nov 2022 12:53:16 -0700 (PDT) dkim-signature: v=1; a=rsa-sha256; d=psihoexpert.ro; s=dynu; c=relaxed/relaxed; q=dns/txt; h=From:Subject:Date:Message-ID:To:CC:MIME-Version:Content-Type:Content-Transfer-Encoding; bh=oXKoIKxSP85R+igYxobP+Cl5PAJys7riZg3Wmwo1tvQ=; b=oLbFn6xtjJ0wiOjBsq9a5oJcZo6oClfI2XqWx2S5VmafJ0f+L9PkBYQGRlRQto7kIoABb8R0TJeNi8sfV5aWU3dnGGa1KvkfDgg2JmfG3azTm25K+Hh80Vj8DzC2eclhHTKcxHzaYpqzA3QYMZ+vPeu/C/8hAMIYVanlBFyRCGKx4oZu6PNHdcC9shkC5ddULl4RDhE8VXDZ4/R+55kKBVLLndNoAZQmaLEQYwdgmctQ4IY9PozRVJcpPr TG6pk9cyxlh/V+P3uLZR5r2Cb3uvXmDtkqy2hP5n6RJ14tDWouJm6GnQeG9FzIJ5RhLT9QQyg9TOnF2T98JaJgeRscKg== Received: from graph (86-122-18-201.dynamic.brasov.rdsnet.ro [86.122.18.201]) by mx1.wiredblade.com with ESMTPSA (version=TLSv1 cipher=AES128-SHA bits=128) ; Tue, 1 Nov 2022 19:22:46 +0000 Message-ID: From: "Dinu Marius" To: Cc: Subject: Bug report for ahci-mvebu driver Date: Tue, 1 Nov 2022 21:21:37 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.3790.4657 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.4913 X-hMailServer-Reason-Score: 0 Precedence: bulk List-ID: X-Mailing-List: linux-ide@vger.kernel.org Hello. I'm contacting you because your email is listed in www.kernel.org/doc/linux/MAINTAINERS I encountered a problem with the ahci-mvebu driver. I think it's a bug. Hardware: Areca ARC-5040 RAID enclosure (DAS), eSATA port, 8 SATA drive bays with 1x 500GB HDD stand-alone and 7x 2TB HDDs in RAID5. Linksys WRT-1900ACS v2 router, Marvell Armada 385 (88F6820), one eSATAp using ahci-mvebu driver with port-multiplier support. The router runs OpenWrt with kernel version 5.15. Problem encountered: Areca DAS is not detected properly. When I connect it, I get these repeating errors in kernel log: [--- from boot log ---] <4>[ 1.490840] ahci-mvebu f10a8000.sata: supply ahci not found, using dummy regulator <4>[ 1.498512] ahci-mvebu f10a8000.sata: supply phy not found, using dummy regulator <4>[ 1.506053] ahci-mvebu f10a8000.sata: supply target not found, using dummy regulator <6>[ 1.513896] ahci-mvebu f10a8000.sata: AHCI 0001.0000 32 slots 2 ports 6 Gbps 0x3 impl platform mode <6>[ 1.522994] ahci-mvebu f10a8000.sata: flags: 64bit ncq sntf led only pmp fbs pio slum part sxs <6>[ 1.532212] scsi host0: ahci-mvebu <6>[ 1.535848] scsi host1: ahci-mvebu <6>[ 1.539353] ata1: SATA max UDMA/133 mmio [mem 0xf10a8000-0xf10a9fff] port 0x100 irq 49 <6>[ 1.547313] ata2: SATA max UDMA/133 mmio [mem 0xf10a8000-0xf10a9fff] port 0x180 irq 49 [--- Areca connected ---] <6>[ 742.795979] ata2: SATA link down (SStatus 100 SControl 300) <3>[ 745.465974] ata2: COMRESET failed (errno=-32) <4>[ 745.470361] ata2: reset failed (errno=-32), retrying in 8 secs <3>[ 755.365973] ata2: COMRESET failed (errno=-32) <4>[ 755.370361] ata2: reset failed (errno=-32), retrying in 8 secs <6>[ 764.655979] ata2: SATA link down (SStatus 100 SControl 300) <6>[ 766.045984] ata2: SATA link down (SStatus 101 SControl 300) <6>[ 767.576004] ata2: SATA link down (SStatus 100 SControl 300) <6>[ 768.325978] ata2: SATA link down (SStatus 100 SControl 300) <3>[ 770.865973] ata2: COMRESET failed (errno=-32) <4>[ 770.870360] ata2: reset failed (errno=-32), retrying in 8 secs <6>[ 779.515985] ata2: SATA link down (SStatus 101 SControl 300) <6>[ 780.275979] ata2: SATA link down (SStatus 100 SControl 300) The same errors appear if I leave it connected during reboot. I tried to limit SATA speed to 150 and to disable NCQ from Areca admin interface. It didn't work. I found no way of making it work. The same router works perfectly when I connect a laptop HDD. The same DAS, including the same eSATA cable, works perfectly when connected to an older Linksys WRT-1900AC v1 with Marvell Armada XP (MV78230), using sata-mv driver. This is the kernel log from the older router: [--- from boot log ---] <7>[ 1.612541] sata_mv f10a0000.sata: version 1.28 <6>[ 1.612652] sata_mv f10a0000.sata: slots 32 ports 1 <6>[ 1.618121] scsi host0: sata_mv <6>[ 1.621486] ata1: SATA max UDMA/133 irq 36 [--- Areca connected ---] <6>[88761.966331] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl F300) <6>[88761.975472] ata1.15: Port Multiplier 1.2, 0x197b:0x0325 r193, 8 ports, feat 0xf/0x1f <6>[88764.670933] ata1.00: ATA-6: WDC WD50ARC-5040-VOL#01, 0100 AX, max UDMA/133 <6>[88764.677860] ata1.00: 976773168 sectors, multi 0: LBA48 <6>[88764.683599] ata1.00: configured for UDMA/133 <6>[88764.688391] ata1.01: ATA-6: Areca Archive, 0100 AX, max UDMA/133 <6>[88764.694596] ata1.01: 23437498368 sectors, multi 0: LBA48 <6>[88764.700779] ata1.01: configured for UDMA/133 <5>[88764.705557] scsi 0:0:0:0: Direct-Access ATA WDC WD50ARC-5040 n/a PQ: 0 ANSI: 5 <5>[88764.714802] sd 0:0:0:0: [sda] 976773168 512-byte logical blocks: (500 GB/466 GiB) <5>[88764.722521] sd 0:0:0:0: [sda] Write Protect is off <7>[88764.727558] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00 <5>[88764.727915] scsi 0:1:0:0: Direct-Access ATA Areca Archive n/a PQ: 0 ANSI: 5 <5>[88764.728706] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA <5>[88764.745574] sd 0:1:0:0: [sdb] 23437498368 512-byte logical blocks: (12.0 TB/10.9 TiB) <5>[88764.753819] sd 0:1:0:0: [sdb] Write Protect is off <7>[88764.758886] sd 0:1:0:0: [sdb] Mode Sense: 00 3a 00 00 <5>[88764.759101] sd 0:1:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA <5>[88764.760537] sd 0:0:0:0: [sda] Attached SCSI disk <5>[88764.772600] sd 0:1:0:0: [sdb] Attached SCSI disk I'm not currently using the new router, so it's available for tests. Thanks. Marius Dinu