From 673424c0890a00e22398017c9adf999577526220 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Mon, 30 Aug 2010 17:37:05 +0200 Subject: pata_artop: Fix device ID parity check x % 1 always evaluates to 0, which clearly isn't the intent. The author probably had "% 2" or "& 1" in mind, and mispelled it. Signed-off-by: Jean Delvare Cc: Jeff Garzik Cc: Alan Cox Signed-off-by: Jeff Garzik diff --git a/drivers/ata/pata_artop.c b/drivers/ata/pata_artop.c index ba43f0f..2215632 100644 --- a/drivers/ata/pata_artop.c +++ b/drivers/ata/pata_artop.c @@ -74,7 +74,8 @@ static int artop6260_pre_reset(struct ata_link *link, unsigned long deadline) struct pci_dev *pdev = to_pci_dev(ap->host->dev); /* Odd numbered device ids are the units with enable bits (the -R cards) */ - if (pdev->device % 1 && !pci_test_config_bits(pdev, &artop_enable_bits[ap->port_no])) + if ((pdev->device & 1) && + !pci_test_config_bits(pdev, &artop_enable_bits[ap->port_no])) return -ENOENT; return ata_sff_prereset(link, deadline); -- cgit v0.10.2 From f1f5a807b051eddd3f302e503d39214e5bde0ef2 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Fri, 27 Aug 2010 11:09:15 +0200 Subject: ahci: fix hang on failed softreset ahci_do_softreset() compared the current time and deadline in reverse when calculating timeout for SRST issue. The result is that if @deadline is in future, SRST is issued with 0 timeout, which hasn't caused any problem because it later waits for DRDY with the correct timeout. If deadline is already exceeded by the time SRST is about to be issued, the timeout calculation underflows and if the device doesn't respond, timeout doesn't trigger for a _very_ long time. Reverse the incorrect comparison order. Signed-off-by: Tejun Heo Reported-by: Anssi Hannula Tested-by: Gwendal Grignou Cc: stable@kernel.org Signed-off-by: Jeff Garzik diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c index 666850d..68dc678 100644 --- a/drivers/ata/libahci.c +++ b/drivers/ata/libahci.c @@ -1326,7 +1326,7 @@ int ahci_do_softreset(struct ata_link *link, unsigned int *class, /* issue the first D2H Register FIS */ msecs = 0; now = jiffies; - if (time_after(now, deadline)) + if (time_after(deadline, now)) msecs = jiffies_to_msecs(deadline - now); tf.ctl |= ATA_SRST; -- cgit v0.10.2 From 40c6023031369ae5573e622ca54fa3ffe89fb865 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 9 Sep 2010 17:13:31 +0200 Subject: libata,pata_via: revert ata_wait_idle() removal from ata_sff/via_tf_load() Commit 978c0666 (libata: Remove excess delay in the tf_load path) removed ata_wait_idle() from ata_sff_tf_load() and via_tf_load(). This caused obscure detection problems in sata_sil. https://bugzilla.kernel.org/show_bug.cgi?id=16606 The commit was pure performance optimization. Revert it for now. Reported-by: Dieter Plaetinck Reported-by: Jan Beulich Bisected-by: gianluca Cc: stable@kernel.org Signed-off-by: Jeff Garzik diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index 3b82d8e..dee3c2c 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -418,6 +418,7 @@ void ata_sff_tf_load(struct ata_port *ap, const struct ata_taskfile *tf) if (ioaddr->ctl_addr) iowrite8(tf->ctl, ioaddr->ctl_addr); ap->last_ctl = tf->ctl; + ata_wait_idle(ap); } if (is_addr && (tf->flags & ATA_TFLAG_LBA48)) { @@ -453,6 +454,8 @@ void ata_sff_tf_load(struct ata_port *ap, const struct ata_taskfile *tf) iowrite8(tf->device, ioaddr->device_addr); VPRINTK("device 0x%X\n", tf->device); } + + ata_wait_idle(ap); } EXPORT_SYMBOL_GPL(ata_sff_tf_load); diff --git a/drivers/ata/pata_via.c b/drivers/ata/pata_via.c index 5e65988..ac8d7d9 100644 --- a/drivers/ata/pata_via.c +++ b/drivers/ata/pata_via.c @@ -417,6 +417,8 @@ static void via_tf_load(struct ata_port *ap, const struct ata_taskfile *tf) tf->lbam, tf->lbah); } + + ata_wait_idle(ap); } static int via_port_start(struct ata_port *ap) -- cgit v0.10.2 From 238e149c7a92eb79ab9f48c171e907a5bde18333 Mon Sep 17 00:00:00 2001 From: Seth Heasley Date: Thu, 9 Sep 2010 09:42:40 -0700 Subject: ata_piix: IDE Mode SATA patch for Intel Patsburg DeviceIDs This patch adds the Intel Patsburg (PCH) IDE mode SATA Controller DeviceIDs. Signed-off-by: Seth Heasley Signed-off-by: Jeff Garzik diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c index 3971bc0..d712675 100644 --- a/drivers/ata/ata_piix.c +++ b/drivers/ata/ata_piix.c @@ -302,6 +302,10 @@ static const struct pci_device_id piix_pci_tbl[] = { { 0x8086, 0x1c08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata }, /* SATA Controller IDE (CPT) */ { 0x8086, 0x1c09, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata }, + /* SATA Controller IDE (PBG) */ + { 0x8086, 0x1d00, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata }, + /* SATA Controller IDE (PBG) */ + { 0x8086, 0x1d08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata }, { } /* terminate list */ }; -- cgit v0.10.2 From 992b3fb9b5391bc4de5b42bb810dc6dd583a6c4a Mon Sep 17 00:00:00 2001 From: Seth Heasley Date: Thu, 9 Sep 2010 09:44:56 -0700 Subject: ahci: AHCI and RAID mode SATA patch for Intel Patsburg DeviceIDs This patch adds the Intel Patsburg (PCH) SATA AHCI and RAID Controller DeviceIDs. Signed-off-by: Seth Heasley Signed-off-by: Jeff Garzik diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 013727b..ff1c945 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -253,6 +253,9 @@ static const struct pci_device_id ahci_pci_tbl[] = { { PCI_VDEVICE(INTEL, 0x1c05), board_ahci }, /* CPT RAID */ { PCI_VDEVICE(INTEL, 0x1c06), board_ahci }, /* CPT RAID */ { PCI_VDEVICE(INTEL, 0x1c07), board_ahci }, /* CPT RAID */ + { PCI_VDEVICE(INTEL, 0x1d02), board_ahci }, /* PBG AHCI */ + { PCI_VDEVICE(INTEL, 0x1d04), board_ahci }, /* PBG RAID */ + { PCI_VDEVICE(INTEL, 0x1d06), board_ahci }, /* PBG RAID */ /* JMicron 360/1/3/5/6, match class to avoid IDE function */ { PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, -- cgit v0.10.2 From e2f3d75fc0e4a0d03c61872bad39ffa2e74a04ff Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 7 Sep 2010 14:05:31 +0200 Subject: libata: skip EH autopsy and recovery during suspend For some mysterious reason, certain hardware reacts badly to usual EH actions while the system is going for suspend. As the devices won't be needed until the system is resumed, ask EH to skip usual autopsy and recovery and proceed directly to suspend. Signed-off-by: Tejun Heo Tested-by: Stephan Diestelhorst Cc: stable@kernel.org Signed-off-by: Jeff Garzik diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index c035b3d..932eaee 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -5418,6 +5418,7 @@ static int ata_host_request_pm(struct ata_host *host, pm_message_t mesg, */ int ata_host_suspend(struct ata_host *host, pm_message_t mesg) { + unsigned int ehi_flags = ATA_EHI_QUIET; int rc; /* @@ -5426,7 +5427,18 @@ int ata_host_suspend(struct ata_host *host, pm_message_t mesg) */ ata_lpm_enable(host); - rc = ata_host_request_pm(host, mesg, 0, ATA_EHI_QUIET, 1); + /* + * On some hardware, device fails to respond after spun down + * for suspend. As the device won't be used before being + * resumed, we don't need to touch the device. Ask EH to skip + * the usual stuff and proceed directly to suspend. + * + * http://thread.gmane.org/gmane.linux.ide/46764 + */ + if (mesg.event == PM_EVENT_SUSPEND) + ehi_flags |= ATA_EHI_NO_AUTOPSY | ATA_EHI_NO_RECOVERY; + + rc = ata_host_request_pm(host, mesg, 0, ehi_flags, 1); if (rc == 0) host->dev->power.power_state = mesg; return rc; diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c index c9ae299..e48302e 100644 --- a/drivers/ata/libata-eh.c +++ b/drivers/ata/libata-eh.c @@ -3235,6 +3235,10 @@ static int ata_eh_skip_recovery(struct ata_link *link) if (link->flags & ATA_LFLAG_DISABLED) return 1; + /* skip if explicitly requested */ + if (ehc->i.flags & ATA_EHI_NO_RECOVERY) + return 1; + /* thaw frozen port and recover failed devices */ if ((ap->pflags & ATA_PFLAG_FROZEN) || ata_link_nr_enabled(link)) return 0; diff --git a/include/linux/libata.h b/include/linux/libata.h index f010f18..7de282d 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -335,6 +335,7 @@ enum { ATA_EHI_HOTPLUGGED = (1 << 0), /* could have been hotplugged */ ATA_EHI_NO_AUTOPSY = (1 << 2), /* no autopsy */ ATA_EHI_QUIET = (1 << 3), /* be quiet */ + ATA_EHI_NO_RECOVERY = (1 << 4), /* no recovery */ ATA_EHI_DID_SOFTRESET = (1 << 16), /* already soft-reset this port */ ATA_EHI_DID_HARDRESET = (1 << 17), /* already soft-reset this port */ -- cgit v0.10.2 From ea3c64506ea7965f86f030155e6fdef381de10e2 Mon Sep 17 00:00:00 2001 From: Gwendal Grignou Date: Tue, 31 Aug 2010 16:20:36 -0700 Subject: libata-sff: Reenable Port Multiplier after libata-sff remodeling. Keep track of the link on the which the current request is in progress. It allows support of links behind port multiplier. Not all libata-sff is PMP compliant. Code for native BMDMA controller does not take in accound PMP. Tested on Marvell 7042 and Sil7526. Signed-off-by: Gwendal Grignou Signed-off-by: Jeff Garzik diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index dee3c2c..e30c537 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -1045,7 +1045,8 @@ static void ata_hsm_qc_complete(struct ata_queued_cmd *qc, int in_wq) int ata_sff_hsm_move(struct ata_port *ap, struct ata_queued_cmd *qc, u8 status, int in_wq) { - struct ata_eh_info *ehi = &ap->link.eh_info; + struct ata_link *link = qc->dev->link; + struct ata_eh_info *ehi = &link->eh_info; unsigned long flags = 0; int poll_next; @@ -1301,8 +1302,14 @@ fsm_start: } EXPORT_SYMBOL_GPL(ata_sff_hsm_move); -void ata_sff_queue_pio_task(struct ata_port *ap, unsigned long delay) +void ata_sff_queue_pio_task(struct ata_link *link, unsigned long delay) { + struct ata_port *ap = link->ap; + + WARN_ON((ap->sff_pio_task_link != NULL) && + (ap->sff_pio_task_link != link)); + ap->sff_pio_task_link = link; + /* may fail if ata_sff_flush_pio_task() in progress */ queue_delayed_work(ata_sff_wq, &ap->sff_pio_task, msecs_to_jiffies(delay)); @@ -1324,14 +1331,18 @@ static void ata_sff_pio_task(struct work_struct *work) { struct ata_port *ap = container_of(work, struct ata_port, sff_pio_task.work); + struct ata_link *link = ap->sff_pio_task_link; struct ata_queued_cmd *qc; u8 status; int poll_next; + BUG_ON(ap->sff_pio_task_link == NULL); /* qc can be NULL if timeout occurred */ - qc = ata_qc_from_tag(ap, ap->link.active_tag); - if (!qc) + qc = ata_qc_from_tag(ap, link->active_tag); + if (!qc) { + ap->sff_pio_task_link = NULL; return; + } fsm_start: WARN_ON_ONCE(ap->hsm_task_state == HSM_ST_IDLE); @@ -1348,11 +1359,16 @@ fsm_start: msleep(2); status = ata_sff_busy_wait(ap, ATA_BUSY, 10); if (status & ATA_BUSY) { - ata_sff_queue_pio_task(ap, ATA_SHORT_PAUSE); + ata_sff_queue_pio_task(link, ATA_SHORT_PAUSE); return; } } + /* + * hsm_move() may trigger another command to be processed. + * clean the link beforehand. + */ + ap->sff_pio_task_link = NULL; /* move the HSM */ poll_next = ata_sff_hsm_move(ap, qc, status, 1); @@ -1379,6 +1395,7 @@ fsm_start: unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc) { struct ata_port *ap = qc->ap; + struct ata_link *link = qc->dev->link; /* Use polling pio if the LLD doesn't handle * interrupt driven pio and atapi CDB interrupt. @@ -1399,7 +1416,7 @@ unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc) ap->hsm_task_state = HSM_ST_LAST; if (qc->tf.flags & ATA_TFLAG_POLLING) - ata_sff_queue_pio_task(ap, 0); + ata_sff_queue_pio_task(link, 0); break; @@ -1412,7 +1429,7 @@ unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc) if (qc->tf.flags & ATA_TFLAG_WRITE) { /* PIO data out protocol */ ap->hsm_task_state = HSM_ST_FIRST; - ata_sff_queue_pio_task(ap, 0); + ata_sff_queue_pio_task(link, 0); /* always send first data block using the * ata_sff_pio_task() codepath. @@ -1422,7 +1439,7 @@ unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc) ap->hsm_task_state = HSM_ST; if (qc->tf.flags & ATA_TFLAG_POLLING) - ata_sff_queue_pio_task(ap, 0); + ata_sff_queue_pio_task(link, 0); /* if polling, ata_sff_pio_task() handles the * rest. otherwise, interrupt handler takes @@ -1444,7 +1461,7 @@ unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc) /* send cdb by polling if no cdb interrupt */ if ((!(qc->dev->flags & ATA_DFLAG_CDB_INTR)) || (qc->tf.flags & ATA_TFLAG_POLLING)) - ata_sff_queue_pio_task(ap, 0); + ata_sff_queue_pio_task(link, 0); break; default: @@ -2737,6 +2754,7 @@ EXPORT_SYMBOL_GPL(ata_bmdma_dumb_qc_prep); unsigned int ata_bmdma_qc_issue(struct ata_queued_cmd *qc) { struct ata_port *ap = qc->ap; + struct ata_link *link = qc->dev->link; /* defer PIO handling to sff_qc_issue */ if (!ata_is_dma(qc->tf.protocol)) @@ -2765,7 +2783,7 @@ unsigned int ata_bmdma_qc_issue(struct ata_queued_cmd *qc) /* send cdb by polling if no cdb interrupt */ if (!(qc->dev->flags & ATA_DFLAG_CDB_INTR)) - ata_sff_queue_pio_task(ap, 0); + ata_sff_queue_pio_task(link, 0); break; default: diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 8198259..a9fd970 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -2284,7 +2284,7 @@ static unsigned int mv_qc_issue_fis(struct ata_queued_cmd *qc) } if (qc->tf.flags & ATA_TFLAG_POLLING) - ata_sff_queue_pio_task(ap, 0); + ata_sff_queue_pio_task(link, 0); return 0; } diff --git a/include/linux/libata.h b/include/linux/libata.h index 7de282d..45fb296 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -724,6 +724,7 @@ struct ata_port { struct ata_ioports ioaddr; /* ATA cmd/ctl/dma register blocks */ u8 ctl; /* cache of ATA control register */ u8 last_ctl; /* Cache last written value */ + struct ata_link* sff_pio_task_link; /* link currently used */ struct delayed_work sff_pio_task; #ifdef CONFIG_ATA_BMDMA struct ata_bmdma_prd *bmdma_prd; /* BMDMA SG list */ @@ -1595,7 +1596,7 @@ extern void ata_sff_irq_on(struct ata_port *ap); extern void ata_sff_irq_clear(struct ata_port *ap); extern int ata_sff_hsm_move(struct ata_port *ap, struct ata_queued_cmd *qc, u8 status, int in_wq); -extern void ata_sff_queue_pio_task(struct ata_port *ap, unsigned long delay); +extern void ata_sff_queue_pio_task(struct ata_link *link, unsigned long delay); extern unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc); extern bool ata_sff_qc_fill_rtf(struct ata_queued_cmd *qc); extern unsigned int ata_sff_port_intr(struct ata_port *ap, -- cgit v0.10.2