From c3b2889424c26f3b42962b6f39aabb4f1fd1b576 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 19 May 2010 22:10:21 +0200 Subject: [PATCH] libata-sff: separate out BMDMA irq handler Separate out BMDMA irq handler from SFF irq handler. The misnamed host_intr() functions are renamed to ata_sff_port_intr() and ata_bmdma_port_intr(). Common parts are factored into __ata_sff_port_intr() and __ata_sff_interrupt() and used by sff and bmdma interrupt routines. All BMDMA drivers now use ata_bmdma_interrupt() or ata_bmdma_port_intr() while all non-BMDMA SFF ones use ata_sff_interrupt() or ata_sff_port_intr(). For now, ata_pci_sff_init_one() uses ata_bmdma_interrupt() as it's used by both SFF and BMDMA drivers. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/ata/ata_piix.c | 2 +- drivers/ata/libata-sff.c | 208 ++++++++++++++++++++++-------------- drivers/ata/pata_atp867x.c | 2 +- drivers/ata/pata_cs5520.c | 2 +- drivers/ata/pata_hpt3x3.c | 2 +- drivers/ata/pata_icside.c | 2 +- drivers/ata/pata_macio.c | 2 +- drivers/ata/pata_mpc52xx.c | 2 +- drivers/ata/pata_ninja32.c | 2 +- drivers/ata/pata_pdc2027x.c | 2 +- drivers/ata/pata_rdc.c | 2 +- drivers/ata/pata_scc.c | 2 +- drivers/ata/pata_sil680.c | 2 +- drivers/ata/sata_mv.c | 2 +- drivers/ata/sata_nv.c | 4 +- drivers/ata/sata_qstor.c | 2 +- drivers/ata/sata_sis.c | 2 +- drivers/ata/sata_svw.c | 2 +- drivers/ata/sata_uli.c | 2 +- drivers/ata/sata_via.c | 2 +- drivers/ata/sata_vsc.c | 2 +- include/linux/libata.h | 5 +- 22 files changed, 155 insertions(+), 100 deletions(-) diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c index ec52fc61876..73685df98db 100644 --- a/drivers/ata/ata_piix.c +++ b/drivers/ata/ata_piix.c @@ -1626,7 +1626,7 @@ static int __devinit piix_init_one(struct pci_dev *pdev, host->flags |= ATA_HOST_PARALLEL_SCAN; pci_set_master(pdev); - return ata_pci_sff_activate_host(host, ata_sff_interrupt, &piix_sht); + return ata_pci_sff_activate_host(host, ata_bmdma_interrupt, &piix_sht); } static void piix_remove_one(struct pci_dev *pdev) diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index 55bc4880cbf..bef7571a1d4 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -1469,27 +1469,27 @@ bool ata_sff_qc_fill_rtf(struct ata_queued_cmd *qc) } EXPORT_SYMBOL_GPL(ata_sff_qc_fill_rtf); -/** - * ata_sff_host_intr - Handle host interrupt for given (port, task) - * @ap: Port on which interrupt arrived (possibly...) - * @qc: Taskfile currently active in engine - * - * Handle host interrupt for given queued command. Currently, - * only DMA interrupts are handled. All other commands are - * handled via polling with interrupts disabled (nIEN bit). - * - * LOCKING: - * spin_lock_irqsave(host lock) - * - * RETURNS: - * One if interrupt was handled, zero if not (shared irq). - */ -unsigned int ata_sff_host_intr(struct ata_port *ap, - struct ata_queued_cmd *qc) +static unsigned int ata_sff_idle_irq(struct ata_port *ap) { - struct ata_eh_info *ehi = &ap->link.eh_info; - u8 status, host_stat = 0; - bool bmdma_stopped = false; + ap->stats.idle_irq++; + +#ifdef ATA_IRQ_TRAP + if ((ap->stats.idle_irq % 1000) == 0) { + ap->ops->sff_check_status(ap); + if (ap->ops->sff_irq_clear) + ap->ops->sff_irq_clear(ap); + ata_port_printk(ap, KERN_WARNING, "irq trap\n"); + return 1; + } +#endif + return 0; /* irq not handled */ +} + +static unsigned int __ata_sff_port_intr(struct ata_port *ap, + struct ata_queued_cmd *qc, + bool hsmv_on_idle) +{ + u8 status; VPRINTK("ata%u: protocol %d task_state %d\n", ap->print_id, qc->tf.protocol, ap->hsm_task_state); @@ -1506,47 +1506,24 @@ unsigned int ata_sff_host_intr(struct ata_port *ap, * need to check ata_is_atapi(qc->tf.protocol) again. */ if (!(qc->dev->flags & ATA_DFLAG_CDB_INTR)) - goto idle_irq; - break; - case HSM_ST_LAST: - if (qc->tf.protocol == ATA_PROT_DMA || - qc->tf.protocol == ATAPI_PROT_DMA) { - /* check status of DMA engine */ - host_stat = ap->ops->bmdma_status(ap); - VPRINTK("ata%u: host_stat 0x%X\n", - ap->print_id, host_stat); - - /* if it's not our irq... */ - if (!(host_stat & ATA_DMA_INTR)) - goto idle_irq; - - /* before we do anything else, clear DMA-Start bit */ - ap->ops->bmdma_stop(qc); - bmdma_stopped = true; - - if (unlikely(host_stat & ATA_DMA_ERR)) { - /* error when transfering data to/from memory */ - qc->err_mask |= AC_ERR_HOST_BUS; - ap->hsm_task_state = HSM_ST_ERR; - } - } + return ata_sff_idle_irq(ap); break; case HSM_ST: + case HSM_ST_LAST: break; default: - goto idle_irq; + return ata_sff_idle_irq(ap); } - /* check main status, clearing INTRQ if needed */ status = ata_sff_irq_status(ap); if (status & ATA_BUSY) { - if (bmdma_stopped) { + if (hsmv_on_idle) { /* BMDMA engine is already stopped, we're screwed */ qc->err_mask |= AC_ERR_HSM; ap->hsm_task_state = HSM_ST_ERR; } else - goto idle_irq; + return ata_sff_idle_irq(ap); } /* clear irq events */ @@ -1555,43 +1532,30 @@ unsigned int ata_sff_host_intr(struct ata_port *ap, ata_sff_hsm_move(ap, qc, status, 0); - if (unlikely(qc->err_mask) && (qc->tf.protocol == ATA_PROT_DMA || - qc->tf.protocol == ATAPI_PROT_DMA)) - ata_ehi_push_desc(ehi, "BMDMA stat 0x%x", host_stat); - return 1; /* irq handled */ - -idle_irq: - ap->stats.idle_irq++; - -#ifdef ATA_IRQ_TRAP - if ((ap->stats.idle_irq % 1000) == 0) { - ap->ops->sff_check_status(ap); - if (ap->ops->sff_irq_clear) - ap->ops->sff_irq_clear(ap); - ata_port_printk(ap, KERN_WARNING, "irq trap\n"); - return 1; - } -#endif - return 0; /* irq not handled */ } -EXPORT_SYMBOL_GPL(ata_sff_host_intr); /** - * ata_sff_interrupt - Default ATA host interrupt handler - * @irq: irq line (unused) - * @dev_instance: pointer to our ata_host information structure + * ata_sff_port_intr - Handle SFF port interrupt + * @ap: Port on which interrupt arrived (possibly...) + * @qc: Taskfile currently active in engine * - * Default interrupt handler for PCI IDE devices. Calls - * ata_sff_host_intr() for each port that is not disabled. + * Handle port interrupt for given queued command. * * LOCKING: - * Obtains host lock during operation. + * spin_lock_irqsave(host lock) * * RETURNS: - * IRQ_NONE or IRQ_HANDLED. + * One if interrupt was handled, zero if not (shared irq). */ -irqreturn_t ata_sff_interrupt(int irq, void *dev_instance) +unsigned int ata_sff_port_intr(struct ata_port *ap, struct ata_queued_cmd *qc) +{ + return __ata_sff_port_intr(ap, qc, false); +} +EXPORT_SYMBOL_GPL(ata_sff_port_intr); + +static inline irqreturn_t __ata_sff_interrupt(int irq, void *dev_instance, + unsigned int (*port_intr)(struct ata_port *, struct ata_queued_cmd *)) { struct ata_host *host = dev_instance; bool retried = false; @@ -1611,7 +1575,7 @@ retry: qc = ata_qc_from_tag(ap, ap->link.active_tag); if (qc) { if (!(qc->tf.flags & ATA_TFLAG_POLLING)) - handled |= ata_sff_host_intr(ap, qc); + handled |= port_intr(ap, qc); else polling |= 1 << i; } else @@ -1661,6 +1625,25 @@ retry: return IRQ_RETVAL(handled); } + +/** + * ata_sff_interrupt - Default SFF ATA host interrupt handler + * @irq: irq line (unused) + * @dev_instance: pointer to our ata_host information structure + * + * Default interrupt handler for PCI IDE devices. Calls + * ata_sff_port_intr() for each port that is not disabled. + * + * LOCKING: + * Obtains host lock during operation. + * + * RETURNS: + * IRQ_NONE or IRQ_HANDLED. + */ +irqreturn_t ata_sff_interrupt(int irq, void *dev_instance) +{ + return __ata_sff_interrupt(irq, dev_instance, ata_sff_port_intr); +} EXPORT_SYMBOL_GPL(ata_sff_interrupt); /** @@ -1698,7 +1681,7 @@ void ata_sff_lost_interrupt(struct ata_port *ap) status); /* Run the host interrupt logic as if the interrupt had not been lost */ - ata_sff_host_intr(ap, qc); + ata_sff_port_intr(ap, qc); } EXPORT_SYMBOL_GPL(ata_sff_lost_interrupt); @@ -2541,7 +2524,7 @@ int ata_pci_sff_init_one(struct pci_dev *pdev, host->flags |= hflag; pci_set_master(pdev); - rc = ata_pci_sff_activate_host(host, ata_sff_interrupt, sht); + rc = ata_pci_sff_activate_host(host, ata_bmdma_interrupt, sht); out: if (rc == 0) devres_remove_group(&pdev->dev, NULL); @@ -2787,6 +2770,75 @@ unsigned int ata_bmdma_qc_issue(struct ata_queued_cmd *qc) } EXPORT_SYMBOL_GPL(ata_bmdma_qc_issue); +/** + * ata_bmdma_port_intr - Handle BMDMA port interrupt + * @ap: Port on which interrupt arrived (possibly...) + * @qc: Taskfile currently active in engine + * + * Handle port interrupt for given queued command. + * + * LOCKING: + * spin_lock_irqsave(host lock) + * + * RETURNS: + * One if interrupt was handled, zero if not (shared irq). + */ +unsigned int ata_bmdma_port_intr(struct ata_port *ap, struct ata_queued_cmd *qc) +{ + struct ata_eh_info *ehi = &ap->link.eh_info; + u8 host_stat = 0; + bool bmdma_stopped = false; + unsigned int handled; + + if (ap->hsm_task_state == HSM_ST_LAST && ata_is_dma(qc->tf.protocol)) { + /* check status of DMA engine */ + host_stat = ap->ops->bmdma_status(ap); + VPRINTK("ata%u: host_stat 0x%X\n", ap->print_id, host_stat); + + /* if it's not our irq... */ + if (!(host_stat & ATA_DMA_INTR)) + return ata_sff_idle_irq(ap); + + /* before we do anything else, clear DMA-Start bit */ + ap->ops->bmdma_stop(qc); + bmdma_stopped = true; + + if (unlikely(host_stat & ATA_DMA_ERR)) { + /* error when transfering data to/from memory */ + qc->err_mask |= AC_ERR_HOST_BUS; + ap->hsm_task_state = HSM_ST_ERR; + } + } + + handled = __ata_sff_port_intr(ap, qc, bmdma_stopped); + + if (unlikely(qc->err_mask) && ata_is_dma(qc->tf.protocol)) + ata_ehi_push_desc(ehi, "BMDMA stat 0x%x", host_stat); + + return handled; +} +EXPORT_SYMBOL_GPL(ata_bmdma_port_intr); + +/** + * ata_bmdma_interrupt - Default BMDMA ATA host interrupt handler + * @irq: irq line (unused) + * @dev_instance: pointer to our ata_host information structure + * + * Default interrupt handler for PCI IDE devices. Calls + * ata_bmdma_port_intr() for each port that is not disabled. + * + * LOCKING: + * Obtains host lock during operation. + * + * RETURNS: + * IRQ_NONE or IRQ_HANDLED. + */ +irqreturn_t ata_bmdma_interrupt(int irq, void *dev_instance) +{ + return __ata_sff_interrupt(irq, dev_instance, ata_bmdma_port_intr); +} +EXPORT_SYMBOL_GPL(ata_bmdma_interrupt); + /** * ata_bmdma_error_handler - Stock error handler for BMDMA controller * @ap: port to handle error for diff --git a/drivers/ata/pata_atp867x.c b/drivers/ata/pata_atp867x.c index bb6e0746e07..95295935dd9 100644 --- a/drivers/ata/pata_atp867x.c +++ b/drivers/ata/pata_atp867x.c @@ -525,7 +525,7 @@ static int atp867x_init_one(struct pci_dev *pdev, pci_set_master(pdev); - rc = ata_host_activate(host, pdev->irq, ata_sff_interrupt, + rc = ata_host_activate(host, pdev->irq, ata_bmdma_interrupt, IRQF_SHARED, &atp867x_sht); if (rc) dev_printk(KERN_ERR, &pdev->dev, "failed to activate host\n"); diff --git a/drivers/ata/pata_cs5520.c b/drivers/ata/pata_cs5520.c index 17c5f346ff0..030952f1f97 100644 --- a/drivers/ata/pata_cs5520.c +++ b/drivers/ata/pata_cs5520.c @@ -221,7 +221,7 @@ static int __devinit cs5520_init_one(struct pci_dev *pdev, const struct pci_devi continue; rc = devm_request_irq(&pdev->dev, irq[ap->port_no], - ata_sff_interrupt, 0, DRV_NAME, host); + ata_bmdma_interrupt, 0, DRV_NAME, host); if (rc) return rc; diff --git a/drivers/ata/pata_hpt3x3.c b/drivers/ata/pata_hpt3x3.c index 727a81ce4c9..b63d5e2d462 100644 --- a/drivers/ata/pata_hpt3x3.c +++ b/drivers/ata/pata_hpt3x3.c @@ -248,7 +248,7 @@ static int hpt3x3_init_one(struct pci_dev *pdev, const struct pci_device_id *id) ata_port_pbar_desc(ap, 4, offset_cmd[i], "cmd"); } pci_set_master(pdev); - return ata_host_activate(host, pdev->irq, ata_sff_interrupt, + return ata_host_activate(host, pdev->irq, ata_bmdma_interrupt, IRQF_SHARED, &hpt3x3_sht); } diff --git a/drivers/ata/pata_icside.c b/drivers/ata/pata_icside.c index b56e8f722d2..9f2889fe43b 100644 --- a/drivers/ata/pata_icside.c +++ b/drivers/ata/pata_icside.c @@ -470,7 +470,7 @@ static int __devinit pata_icside_add_ports(struct pata_icside_info *info) pata_icside_setup_ioaddr(ap, info->base, info, info->port[i]); } - return ata_host_activate(host, ec->irq, ata_sff_interrupt, 0, + return ata_host_activate(host, ec->irq, ata_bmdma_interrupt, 0, &pata_icside_sht); } diff --git a/drivers/ata/pata_macio.c b/drivers/ata/pata_macio.c index b5b48e703cb..76640ac7688 100644 --- a/drivers/ata/pata_macio.c +++ b/drivers/ata/pata_macio.c @@ -1110,7 +1110,7 @@ static int __devinit pata_macio_common_init(struct pata_macio_priv *priv, /* Start it up */ priv->irq = irq; - return ata_host_activate(priv->host, irq, ata_sff_interrupt, 0, + return ata_host_activate(priv->host, irq, ata_bmdma_interrupt, 0, &pata_macio_sht); } diff --git a/drivers/ata/pata_mpc52xx.c b/drivers/ata/pata_mpc52xx.c index 36afe2c1c74..f087ab55b1d 100644 --- a/drivers/ata/pata_mpc52xx.c +++ b/drivers/ata/pata_mpc52xx.c @@ -659,7 +659,7 @@ mpc52xx_ata_init_one(struct device *dev, struct mpc52xx_ata_priv *priv, ata_port_desc(ap, "ata_regs 0x%lx", raw_ata_regs); /* activate host */ - return ata_host_activate(host, priv->ata_irq, ata_sff_interrupt, 0, + return ata_host_activate(host, priv->ata_irq, ata_bmdma_interrupt, 0, &mpc52xx_ata_sht); } diff --git a/drivers/ata/pata_ninja32.c b/drivers/ata/pata_ninja32.c index dd53a66b19e..cc50bd09aa2 100644 --- a/drivers/ata/pata_ninja32.c +++ b/drivers/ata/pata_ninja32.c @@ -149,7 +149,7 @@ static int ninja32_init_one(struct pci_dev *dev, const struct pci_device_id *id) ninja32_program(base); /* FIXME: Should we disable them at remove ? */ - return ata_host_activate(host, dev->irq, ata_sff_interrupt, + return ata_host_activate(host, dev->irq, ata_bmdma_interrupt, IRQF_SHARED, &ninja32_sht); } diff --git a/drivers/ata/pata_pdc2027x.c b/drivers/ata/pata_pdc2027x.c index 09f1f22c030..b1835112252 100644 --- a/drivers/ata/pata_pdc2027x.c +++ b/drivers/ata/pata_pdc2027x.c @@ -754,7 +754,7 @@ static int __devinit pdc2027x_init_one(struct pci_dev *pdev, const struct pci_de return -EIO; pci_set_master(pdev); - return ata_host_activate(host, pdev->irq, ata_sff_interrupt, + return ata_host_activate(host, pdev->irq, ata_bmdma_interrupt, IRQF_SHARED, &pdc2027x_sht); } diff --git a/drivers/ata/pata_rdc.c b/drivers/ata/pata_rdc.c index 37092cfd7bc..2dd7748c904 100644 --- a/drivers/ata/pata_rdc.c +++ b/drivers/ata/pata_rdc.c @@ -354,7 +354,7 @@ static int __devinit rdc_init_one(struct pci_dev *pdev, host->flags |= ATA_HOST_PARALLEL_SCAN; pci_set_master(pdev); - return ata_pci_sff_activate_host(host, ata_sff_interrupt, &rdc_sht); + return ata_pci_sff_activate_host(host, ata_bmdma_interrupt, &rdc_sht); } static void rdc_remove_one(struct pci_dev *pdev) diff --git a/drivers/ata/pata_scc.c b/drivers/ata/pata_scc.c index fb318cdaffb..d9db3f8d60e 100644 --- a/drivers/ata/pata_scc.c +++ b/drivers/ata/pata_scc.c @@ -1105,7 +1105,7 @@ static int scc_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) if (rc) return rc; - return ata_host_activate(host, pdev->irq, ata_sff_interrupt, + return ata_host_activate(host, pdev->irq, ata_bmdma_interrupt, IRQF_SHARED, &scc_sht); } diff --git a/drivers/ata/pata_sil680.c b/drivers/ata/pata_sil680.c index 43faf106f64..ac559378654 100644 --- a/drivers/ata/pata_sil680.c +++ b/drivers/ata/pata_sil680.c @@ -374,7 +374,7 @@ static int __devinit sil680_init_one(struct pci_dev *pdev, ata_sff_std_ports(&host->ports[1]->ioaddr); /* Register & activate */ - return ata_host_activate(host, pdev->irq, ata_sff_interrupt, + return ata_host_activate(host, pdev->irq, ata_bmdma_interrupt, IRQF_SHARED, &sil680_sht); use_ioports: diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 16bacd38926..a476cd99b95 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -2811,7 +2811,7 @@ static void mv_port_intr(struct ata_port *ap, u32 port_cause) } else if (!edma_was_enabled) { struct ata_queued_cmd *qc = mv_get_active_qc(ap); if (qc) - ata_sff_host_intr(ap, qc); + ata_bmdma_port_intr(ap, qc); else mv_unexpected_intr(ap, edma_was_enabled); } diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c index 358dde0178d..4269b9915e4 100644 --- a/drivers/ata/sata_nv.c +++ b/drivers/ata/sata_nv.c @@ -920,7 +920,7 @@ static int nv_host_intr(struct ata_port *ap, u8 irq_stat) } /* handle interrupt */ - return ata_sff_host_intr(ap, qc); + return ata_bmdma_port_intr(ap, qc); } static irqreturn_t nv_adma_interrupt(int irq, void *dev_instance) @@ -1505,7 +1505,7 @@ static irqreturn_t nv_generic_interrupt(int irq, void *dev_instance) qc = ata_qc_from_tag(ap, ap->link.active_tag); if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING))) { - handled += ata_sff_host_intr(ap, qc); + handled += ata_bmdma_port_intr(ap, qc); } else { /* * No request pending? Clear interrupt status diff --git a/drivers/ata/sata_qstor.c b/drivers/ata/sata_qstor.c index d533b3d20ca..0074351d7ed 100644 --- a/drivers/ata/sata_qstor.c +++ b/drivers/ata/sata_qstor.c @@ -454,7 +454,7 @@ static inline unsigned int qs_intr_mmio(struct ata_host *host) if (!pp || pp->state != qs_state_mmio) continue; if (!(qc->tf.flags & ATA_TFLAG_POLLING)) - handled |= ata_sff_host_intr(ap, qc); + handled |= ata_sff_port_intr(ap, qc); } return handled; } diff --git a/drivers/ata/sata_sis.c b/drivers/ata/sata_sis.c index f8a91bfd66a..fff10458a1a 100644 --- a/drivers/ata/sata_sis.c +++ b/drivers/ata/sata_sis.c @@ -308,7 +308,7 @@ static int sis_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) pci_set_master(pdev); pci_intx(pdev, 1); - return ata_host_activate(host, pdev->irq, ata_sff_interrupt, + return ata_host_activate(host, pdev->irq, ata_bmdma_interrupt, IRQF_SHARED, &sis_sht); } diff --git a/drivers/ata/sata_svw.c b/drivers/ata/sata_svw.c index 101fd6a1982..7d9db4aaf07 100644 --- a/drivers/ata/sata_svw.c +++ b/drivers/ata/sata_svw.c @@ -502,7 +502,7 @@ static int k2_sata_init_one(struct pci_dev *pdev, const struct pci_device_id *en writel(0x0, mmio_base + K2_SATA_SIM_OFFSET); pci_set_master(pdev); - return ata_host_activate(host, pdev->irq, ata_sff_interrupt, + return ata_host_activate(host, pdev->irq, ata_bmdma_interrupt, IRQF_SHARED, &k2_sata_sht); } diff --git a/drivers/ata/sata_uli.c b/drivers/ata/sata_uli.c index d8dac17dc2c..b8578c32d34 100644 --- a/drivers/ata/sata_uli.c +++ b/drivers/ata/sata_uli.c @@ -242,7 +242,7 @@ static int uli_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) pci_set_master(pdev); pci_intx(pdev, 1); - return ata_host_activate(host, pdev->irq, ata_sff_interrupt, + return ata_host_activate(host, pdev->irq, ata_bmdma_interrupt, IRQF_SHARED, &uli_sht); } diff --git a/drivers/ata/sata_via.c b/drivers/ata/sata_via.c index 7737dd5a434..7da5d019873 100644 --- a/drivers/ata/sata_via.c +++ b/drivers/ata/sata_via.c @@ -628,7 +628,7 @@ static int svia_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) svia_configure(pdev); pci_set_master(pdev); - return ata_host_activate(host, pdev->irq, ata_sff_interrupt, + return ata_host_activate(host, pdev->irq, ata_bmdma_interrupt, IRQF_SHARED, &svia_sht); } diff --git a/drivers/ata/sata_vsc.c b/drivers/ata/sata_vsc.c index 2107952ebff..b777176ff49 100644 --- a/drivers/ata/sata_vsc.c +++ b/drivers/ata/sata_vsc.c @@ -245,7 +245,7 @@ static void vsc_port_intr(u8 port_status, struct ata_port *ap) qc = ata_qc_from_tag(ap, ap->link.active_tag); if (qc && likely(!(qc->tf.flags & ATA_TFLAG_POLLING))) - handled = ata_sff_host_intr(ap, qc); + handled = ata_bmdma_port_intr(ap, qc); /* We received an interrupt during a polled command, * or some other spurious condition. Interrupt reporting diff --git a/include/linux/libata.h b/include/linux/libata.h index 8fd1ca8c7ef..b76d767e024 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -1593,7 +1593,7 @@ extern int ata_sff_hsm_move(struct ata_port *ap, struct ata_queued_cmd *qc, extern void ata_sff_queue_pio_task(struct ata_port *ap, 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_host_intr(struct ata_port *ap, +extern unsigned int ata_sff_port_intr(struct ata_port *ap, struct ata_queued_cmd *qc); extern irqreturn_t ata_sff_interrupt(int irq, void *dev_instance); extern void ata_sff_lost_interrupt(struct ata_port *ap); @@ -1628,6 +1628,9 @@ extern int ata_pci_sff_init_one(struct pci_dev *pdev, extern void ata_bmdma_qc_prep(struct ata_queued_cmd *qc); extern unsigned int ata_bmdma_qc_issue(struct ata_queued_cmd *qc); extern void ata_bmdma_dumb_qc_prep(struct ata_queued_cmd *qc); +extern unsigned int ata_bmdma_port_intr(struct ata_port *ap, + struct ata_queued_cmd *qc); +extern irqreturn_t ata_bmdma_interrupt(int irq, void *dev_instance); extern void ata_bmdma_error_handler(struct ata_port *ap); extern void ata_bmdma_post_internal_cmd(struct ata_queued_cmd *qc); extern void ata_bmdma_irq_clear(struct ata_port *ap); -- 2.20.1