From e8caa3c70e94d867ca2efe9e53fd388b52d6d0c8 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Sun, 25 Jan 2009 11:25:22 +0900 Subject: sata_nv: rename nv_nf2_hardreset() nv_nf2_hardreset() will be used by other flavors too. Rename it to nv_noclassify_hardreset(). Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/ata/sata_nv.c | 28 ++++++++++++++-------------- 1 file changed, 14 insertions(+), 14 deletions(-) (limited to 'drivers/ata/sata_nv.c') diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c index 6f1460614325..93bf5855a9b5 100644 --- a/drivers/ata/sata_nv.c +++ b/drivers/ata/sata_nv.c @@ -305,10 +305,10 @@ static irqreturn_t nv_ck804_interrupt(int irq, void *dev_instance); static int nv_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val); static int nv_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val); +static int nv_noclassify_hardreset(struct ata_link *link, unsigned int *class, + unsigned long deadline); static void nv_nf2_freeze(struct ata_port *ap); static void nv_nf2_thaw(struct ata_port *ap); -static int nv_nf2_hardreset(struct ata_link *link, unsigned int *class, - unsigned long deadline); static void nv_ck804_freeze(struct ata_port *ap); static void nv_ck804_thaw(struct ata_port *ap); static int nv_adma_slave_config(struct scsi_device *sdev); @@ -432,7 +432,7 @@ static struct ata_port_operations nv_nf2_ops = { .inherits = &nv_common_ops, .freeze = nv_nf2_freeze, .thaw = nv_nf2_thaw, - .hardreset = nv_nf2_hardreset, + .hardreset = nv_noclassify_hardreset, }; /* CK804 finally gets hardreset right */ @@ -1530,6 +1530,17 @@ static int nv_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val) return 0; } +static int nv_noclassify_hardreset(struct ata_link *link, unsigned int *class, + unsigned long deadline) +{ + bool online; + int rc; + + rc = sata_link_hardreset(link, sata_deb_timing_hotplug, deadline, + &online, NULL); + return online ? -EAGAIN : rc; +} + static void nv_nf2_freeze(struct ata_port *ap) { void __iomem *scr_addr = ap->host->ports[0]->ioaddr.scr_addr; @@ -1554,17 +1565,6 @@ static void nv_nf2_thaw(struct ata_port *ap) iowrite8(mask, scr_addr + NV_INT_ENABLE); } -static int nv_nf2_hardreset(struct ata_link *link, unsigned int *class, - unsigned long deadline) -{ - bool online; - int rc; - - rc = sata_link_hardreset(link, sata_deb_timing_hotplug, deadline, - &online, NULL); - return online ? -EAGAIN : rc; -} - static void nv_ck804_freeze(struct ata_port *ap) { void __iomem *mmio_base = ap->host->iomap[NV_MMIO_BAR]; -- cgit v1.2.3 From 2d775708bc6613f1be47f1e720781343341ecc94 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Sun, 25 Jan 2009 11:29:38 +0900 Subject: sata_nv: fix MCP5x reset MCP5x family of controllers seem to share much more with nf2's as far as reset protocol is concerned. It requires heardreset to get the PHY going and classfication code report after hardreset is unreliable. Create a new board type MCP5x and use noclassify hardreset. SWNCQ is modified to inherit from this new type. This fixes hotplug regression reported in kernel bz#12351. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/ata/sata_nv.c | 42 +++++++++++++++++++++++++++++------------- 1 file changed, 29 insertions(+), 13 deletions(-) (limited to 'drivers/ata/sata_nv.c') diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c index 93bf5855a9b5..c49ad0e61b6f 100644 --- a/drivers/ata/sata_nv.c +++ b/drivers/ata/sata_nv.c @@ -352,6 +352,7 @@ enum nv_host_type NFORCE3 = NFORCE2, /* NF2 == NF3 as far as sata_nv is concerned */ CK804, ADMA, + MCP5x, SWNCQ, }; @@ -363,10 +364,10 @@ static const struct pci_device_id nv_pci_tbl[] = { { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_CK804_SATA2), CK804 }, { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP04_SATA), CK804 }, { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP04_SATA2), CK804 }, - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP51_SATA), SWNCQ }, - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP51_SATA2), SWNCQ }, - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_SATA), SWNCQ }, - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_SATA2), SWNCQ }, + { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP51_SATA), MCP5x }, + { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP51_SATA2), MCP5x }, + { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_SATA), MCP5x }, + { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_SATA2), MCP5x }, { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP61_SATA), GENERIC }, { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP61_SATA2), GENERIC }, { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP61_SATA3), GENERIC }, @@ -467,8 +468,19 @@ static struct ata_port_operations nv_adma_ops = { .host_stop = nv_adma_host_stop, }; +/* Kernel bz#12351 reports that when SWNCQ is enabled, for hotplug to + * work, hardreset should be used and hardreset can't report proper + * signature, which suggests that mcp5x is closer to nf2 as long as + * reset quirkiness is concerned. Define separate ops for mcp5x with + * nv_noclassify_hardreset(). + */ +static struct ata_port_operations nv_mcp5x_ops = { + .inherits = &nv_common_ops, + .hardreset = nv_noclassify_hardreset, +}; + static struct ata_port_operations nv_swncq_ops = { - .inherits = &nv_generic_ops, + .inherits = &nv_mcp5x_ops, .qc_defer = ata_std_qc_defer, .qc_prep = nv_swncq_qc_prep, @@ -531,6 +543,15 @@ static const struct ata_port_info nv_port_info[] = { .port_ops = &nv_adma_ops, .private_data = NV_PI_PRIV(nv_adma_interrupt, &nv_adma_sht), }, + /* MCP5x */ + { + .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY, + .pio_mask = NV_PIO_MASK, + .mwdma_mask = NV_MWDMA_MASK, + .udma_mask = NV_UDMA_MASK, + .port_ops = &nv_mcp5x_ops, + .private_data = NV_PI_PRIV(nv_generic_interrupt, &nv_sht), + }, /* SWNCQ */ { .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | @@ -2355,14 +2376,9 @@ static int nv_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if (type == CK804 && adma_enabled) { dev_printk(KERN_NOTICE, &pdev->dev, "Using ADMA mode\n"); type = ADMA; - } - - if (type == SWNCQ) { - if (swncq_enabled) - dev_printk(KERN_NOTICE, &pdev->dev, - "Using SWNCQ mode\n"); - else - type = GENERIC; + } else if (type == MCP5x && swncq_enabled) { + dev_printk(KERN_NOTICE, &pdev->dev, "Using SWNCQ mode\n"); + type = SWNCQ; } ppi[0] = &nv_port_info[type]; -- cgit v1.2.3