Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761729AbXHCSCd (ORCPT ); Fri, 3 Aug 2007 14:02:33 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757202AbXHCSCY (ORCPT ); Fri, 3 Aug 2007 14:02:24 -0400 Received: from shawidc-mo1.cg.shawcable.net ([24.71.223.10]:10733 "EHLO pd3mo1so.prod.shaw.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757093AbXHCSCW (ORCPT ); Fri, 3 Aug 2007 14:02:22 -0400 Date: Fri, 03 Aug 2007 12:00:57 -0600 From: Robert Hancock Subject: [PATCH -mm] libata: add human-readable error value decoding v3 To: linux-kernel , ide , Andrew Morton , Jeff Garzik Message-id: <46B36D59.7060803@shaw.ca> MIME-version: 1.0 Content-type: text/plain; charset=ISO-8859-1 Content-transfer-encoding: 7bit User-Agent: Thunderbird 2.0.0.6 (Windows/20070728) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4309 Lines: 99 This adds human-readable decoding of the ATA status and error registers (similar to what drivers/ide does) as well as the SATA Serror register to libata error handling output. This prevents the need to pore through standards documents to figure out the meaning of the bits in these registers when looking at error reports. Some bits that drivers/ide decoded are not decoded here, since the bits are either command-dependent or obsolete, and properly parsing them would add too much complexity. Signed-off-by: Robert Hancock --- Rebased to apply to 2.6.23-rc1-mm2. --- linux-2.6.23-rc1-mm2/include/linux/ata.h 2007-08-02 16:13:24.000000000 -0600 +++ linux-2.6.23-rc1-mm2edit/include/linux/ata.h 2007-08-02 16:37:23.000000000 -0600 @@ -274,6 +274,15 @@ enum { SERR_PROTOCOL = (1 << 10), /* protocol violation */ SERR_INTERNAL = (1 << 11), /* host internal error */ SERR_PHYRDY_CHG = (1 << 16), /* PHY RDY changed */ + SERR_PHY_INT_ERR = (1 << 17), /* PHY internal error */ + SERR_COMM_WAKE = (1 << 18), /* Comm wake */ + SERR_10B_8B_ERR = (1 << 19), /* 10b to 8b decode error */ + SERR_DISPARITY = (1 << 20), /* Disparity */ + SERR_CRC = (1 << 21), /* CRC error */ + SERR_HANDSHAKE = (1 << 22), /* Handshake error */ + SERR_LINK_SEQ_ERR = (1 << 23), /* Link sequence error */ + SERR_TRANS_ST_ERROR = (1 << 24), /* Transport state trans. error */ + SERR_UNRECOG_FIS = (1 << 25), /* Unrecognized FIS */ SERR_DEV_XCHG = (1 << 26), /* device exchanged */ /* struct ata_taskfile flags */ --- linux-2.6.23-rc1-mm2/drivers/ata/libata-eh.c 2007-08-02 16:13:11.000000000 -0600 +++ linux-2.6.23-rc1-mm2edit/drivers/ata/libata-eh.c 2007-08-02 16:35:58.000000000 -0600 @@ -1698,6 +1698,27 @@ static void ata_eh_report(struct ata_por ata_port_printk(ap, KERN_ERR, "%s\n", desc); } + if (ehc->i.serror) + ata_port_printk(ap, KERN_ERR, + "SError: {%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s}\n", + ehc->i.serror & SERR_DATA_RECOVERED ? "RecovData " : "", + ehc->i.serror & SERR_COMM_RECOVERED ? "RecovComm " : "", + ehc->i.serror & SERR_DATA ? "UnrecovData " : "", + ehc->i.serror & SERR_PERSISTENT ? "Persist " : "", + ehc->i.serror & SERR_PROTOCOL ? "Proto " : "", + ehc->i.serror & SERR_INTERNAL ? "HostInt " : "", + ehc->i.serror & SERR_PHYRDY_CHG ? "PHYRdyChg " : "", + ehc->i.serror & SERR_PHY_INT_ERR ? "PHYInt " : "", + ehc->i.serror & SERR_COMM_WAKE ? "CommWake " : "", + ehc->i.serror & SERR_10B_8B_ERR ? "10B8B " : "", + ehc->i.serror & SERR_DISPARITY ? "Dispar " : "", + ehc->i.serror & SERR_CRC ? "BadCRC " : "", + ehc->i.serror & SERR_HANDSHAKE ? "Handshk " : "", + ehc->i.serror & SERR_LINK_SEQ_ERR ? "LinkSeq " : "", + ehc->i.serror & SERR_TRANS_ST_ERROR ? "TrStaTrns " : "", + ehc->i.serror & SERR_UNRECOG_FIS ? "UnrecFIS " : "", + ehc->i.serror & SERR_DEV_XCHG ? "DevExch " : "" ); + for (tag = 0; tag < ATA_MAX_QUEUE; tag++) { static const char *dma_str[] = { [DMA_BIDIRECTIONAL] = "bidi", @@ -1728,6 +1749,30 @@ static void ata_eh_report(struct ata_por res->hob_lbal, res->hob_lbam, res->hob_lbah, res->device, qc->err_mask, ata_err_string(qc->err_mask), qc->err_mask & AC_ERR_NCQ ? " " : ""); + + if (res->command & (ATA_BUSY | ATA_DRDY | ATA_DF | ATA_DRQ | + ATA_ERR) ) { + if (res->command & ATA_BUSY) + ata_dev_printk(qc->dev, KERN_ERR, + "status: {Busy}\n" ); + else + ata_dev_printk(qc->dev, KERN_ERR, + "status: {%s%s%s%s}\n", + res->command & ATA_DRDY ? "DRDY " : "", + res->command & ATA_DF ? "DF " : "", + res->command & ATA_DRQ ? "DRQ " : "", + res->command & ATA_ERR ? "ERR " : "" ); + } + + if (cmd->command != ATA_CMD_PACKET && + (res->feature & (ATA_ICRC | ATA_UNC | ATA_IDNF | + ATA_ABORTED))) + ata_dev_printk(qc->dev, KERN_ERR, + "error: {%s%s%s%s}\n", + res->feature & ATA_ICRC ? "ICRC " : "", + res->feature & ATA_UNC ? "UNC " : "", + res->feature & ATA_IDNF ? "IDNF " : "", + res->feature & ATA_ABORTED ? "ABRT " : "" ); } } - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/