X-Git-Url: http://git.onelab.eu/?p=linux-2.6.git;a=blobdiff_plain;f=drivers%2Fscsi%2Fsata_nv.c;fp=drivers%2Fscsi%2Fsata_nv.c;h=9f553081b5e832525c8fde6fd33cea2c9058004e;hp=b0403ccd8a25d97aec9e220d175844dd45448076;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hpb=cee37fe97739d85991964371c1f3a745c00dd236 diff --git a/drivers/scsi/sata_nv.c b/drivers/scsi/sata_nv.c index b0403ccd8..9f553081b 100644 --- a/drivers/scsi/sata_nv.c +++ b/drivers/scsi/sata_nv.c @@ -4,35 +4,31 @@ * Copyright 2004 NVIDIA Corp. All rights reserved. * Copyright 2004 Andrew Chew * - * The contents of this file are subject to the Open - * Software License version 1.1 that can be found at - * http://www.opensource.org/licenses/osl-1.1.txt and is included herein - * by reference. * - * Alternatively, the contents of this file may be used under the terms - * of the GNU General Public License version 2 (the "GPL") as distributed - * in the kernel source COPYING file, in which case the provisions of - * the GPL are applicable instead of the above. If you wish to allow - * the use of your version of this file only under the terms of the - * GPL and not to allow others to use your version of this file under - * the OSL, indicate your decision by deleting the provisions above and - * replace them with the notice and other provisions required by the GPL. - * If you do not delete the provisions above, a recipient may use your - * version of this file under either the OSL or the GPL. + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. * - * 0.06 - * - Added generic SATA support by using a pci_device_id that filters on - * the IDE storage class code. + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. * - * 0.03 - * - Fixed a bug where the hotplug handlers for non-CK804/MCP04 were using - * mmio_base, which is only set for the CK804/MCP04 case. + * You should have received a copy of the GNU General Public License + * along with this program; see the file COPYING. If not, write to + * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. * - * 0.02 - * - Added support for CK804 SATA controller. * - * 0.01 - * - Initial revision. + * libata documentation is available via 'make {ps|pdf}docs', + * as Documentation/DocBook/libata.* + * + * No hardware documentation available outside of NVIDIA. + * This driver programs the NVIDIA SATA controller in a similar + * fashion as with other PCI IDE BMDMA controllers, with a few + * NV-specific details such as register offsets, SATA phy location, + * hotplug info, etc. + * */ #include @@ -43,60 +39,62 @@ #include #include #include -#include "scsi.h" +#include #include #include #define DRV_NAME "sata_nv" -#define DRV_VERSION "0.6" - -#define NV_PORTS 2 -#define NV_PIO_MASK 0x1f -#define NV_MWDMA_MASK 0x07 -#define NV_UDMA_MASK 0x7f -#define NV_PORT0_SCR_REG_OFFSET 0x00 -#define NV_PORT1_SCR_REG_OFFSET 0x40 - -#define NV_INT_STATUS 0x10 -#define NV_INT_STATUS_CK804 0x440 -#define NV_INT_STATUS_PDEV_INT 0x01 -#define NV_INT_STATUS_PDEV_PM 0x02 -#define NV_INT_STATUS_PDEV_ADDED 0x04 -#define NV_INT_STATUS_PDEV_REMOVED 0x08 -#define NV_INT_STATUS_SDEV_INT 0x10 -#define NV_INT_STATUS_SDEV_PM 0x20 -#define NV_INT_STATUS_SDEV_ADDED 0x40 -#define NV_INT_STATUS_SDEV_REMOVED 0x80 -#define NV_INT_STATUS_PDEV_HOTPLUG (NV_INT_STATUS_PDEV_ADDED | \ - NV_INT_STATUS_PDEV_REMOVED) -#define NV_INT_STATUS_SDEV_HOTPLUG (NV_INT_STATUS_SDEV_ADDED | \ - NV_INT_STATUS_SDEV_REMOVED) -#define NV_INT_STATUS_HOTPLUG (NV_INT_STATUS_PDEV_HOTPLUG | \ - NV_INT_STATUS_SDEV_HOTPLUG) - -#define NV_INT_ENABLE 0x11 -#define NV_INT_ENABLE_CK804 0x441 -#define NV_INT_ENABLE_PDEV_MASK 0x01 -#define NV_INT_ENABLE_PDEV_PM 0x02 -#define NV_INT_ENABLE_PDEV_ADDED 0x04 -#define NV_INT_ENABLE_PDEV_REMOVED 0x08 -#define NV_INT_ENABLE_SDEV_MASK 0x10 -#define NV_INT_ENABLE_SDEV_PM 0x20 -#define NV_INT_ENABLE_SDEV_ADDED 0x40 -#define NV_INT_ENABLE_SDEV_REMOVED 0x80 -#define NV_INT_ENABLE_PDEV_HOTPLUG (NV_INT_ENABLE_PDEV_ADDED | \ - NV_INT_ENABLE_PDEV_REMOVED) -#define NV_INT_ENABLE_SDEV_HOTPLUG (NV_INT_ENABLE_SDEV_ADDED | \ - NV_INT_ENABLE_SDEV_REMOVED) -#define NV_INT_ENABLE_HOTPLUG (NV_INT_ENABLE_PDEV_HOTPLUG | \ - NV_INT_ENABLE_SDEV_HOTPLUG) - -#define NV_INT_CONFIG 0x12 -#define NV_INT_CONFIG_METHD 0x01 // 0 = INT, 1 = SMI - -// For PCI config register 20 -#define NV_MCP_SATA_CFG_20 0x50 -#define NV_MCP_SATA_CFG_20_SATA_SPACE_EN 0x04 +#define DRV_VERSION "0.8" + +enum { + NV_PORTS = 2, + NV_PIO_MASK = 0x1f, + NV_MWDMA_MASK = 0x07, + NV_UDMA_MASK = 0x7f, + NV_PORT0_SCR_REG_OFFSET = 0x00, + NV_PORT1_SCR_REG_OFFSET = 0x40, + + NV_INT_STATUS = 0x10, + NV_INT_STATUS_CK804 = 0x440, + NV_INT_STATUS_PDEV_INT = 0x01, + NV_INT_STATUS_PDEV_PM = 0x02, + NV_INT_STATUS_PDEV_ADDED = 0x04, + NV_INT_STATUS_PDEV_REMOVED = 0x08, + NV_INT_STATUS_SDEV_INT = 0x10, + NV_INT_STATUS_SDEV_PM = 0x20, + NV_INT_STATUS_SDEV_ADDED = 0x40, + NV_INT_STATUS_SDEV_REMOVED = 0x80, + NV_INT_STATUS_PDEV_HOTPLUG = (NV_INT_STATUS_PDEV_ADDED | + NV_INT_STATUS_PDEV_REMOVED), + NV_INT_STATUS_SDEV_HOTPLUG = (NV_INT_STATUS_SDEV_ADDED | + NV_INT_STATUS_SDEV_REMOVED), + NV_INT_STATUS_HOTPLUG = (NV_INT_STATUS_PDEV_HOTPLUG | + NV_INT_STATUS_SDEV_HOTPLUG), + + NV_INT_ENABLE = 0x11, + NV_INT_ENABLE_CK804 = 0x441, + NV_INT_ENABLE_PDEV_MASK = 0x01, + NV_INT_ENABLE_PDEV_PM = 0x02, + NV_INT_ENABLE_PDEV_ADDED = 0x04, + NV_INT_ENABLE_PDEV_REMOVED = 0x08, + NV_INT_ENABLE_SDEV_MASK = 0x10, + NV_INT_ENABLE_SDEV_PM = 0x20, + NV_INT_ENABLE_SDEV_ADDED = 0x40, + NV_INT_ENABLE_SDEV_REMOVED = 0x80, + NV_INT_ENABLE_PDEV_HOTPLUG = (NV_INT_ENABLE_PDEV_ADDED | + NV_INT_ENABLE_PDEV_REMOVED), + NV_INT_ENABLE_SDEV_HOTPLUG = (NV_INT_ENABLE_SDEV_ADDED | + NV_INT_ENABLE_SDEV_REMOVED), + NV_INT_ENABLE_HOTPLUG = (NV_INT_ENABLE_PDEV_HOTPLUG | + NV_INT_ENABLE_SDEV_HOTPLUG), + + NV_INT_CONFIG = 0x12, + NV_INT_CONFIG_METHD = 0x01, // 0 = INT, 1 = SMI + + // For PCI config register 20 + NV_MCP_SATA_CFG_20 = 0x50, + NV_MCP_SATA_CFG_20_SATA_SPACE_EN = 0x04, +}; static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent); static irqreturn_t nv_interrupt (int irq, void *dev_instance, @@ -106,10 +104,10 @@ static void nv_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val); static void nv_host_stop (struct ata_host_set *host_set); static void nv_enable_hotplug(struct ata_probe_ent *probe_ent); static void nv_disable_hotplug(struct ata_host_set *host_set); -static void nv_check_hotplug(struct ata_host_set *host_set); +static int nv_check_hotplug(struct ata_host_set *host_set); static void nv_enable_hotplug_ck804(struct ata_probe_ent *probe_ent); static void nv_disable_hotplug_ck804(struct ata_host_set *host_set); -static void nv_check_hotplug_ck804(struct ata_host_set *host_set); +static int nv_check_hotplug_ck804(struct ata_host_set *host_set); enum nv_host_type { @@ -119,7 +117,7 @@ enum nv_host_type CK804 }; -static struct pci_device_id nv_pci_tbl[] = { +static const struct pci_device_id nv_pci_tbl[] = { { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2S_SATA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, NFORCE2 }, { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3S_SATA, @@ -134,20 +132,29 @@ static struct pci_device_id nv_pci_tbl[] = { PCI_ANY_ID, PCI_ANY_ID, 0, 0, CK804 }, { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP04_SATA2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CK804 }, + { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP51_SATA, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, GENERIC }, + { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP51_SATA2, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, GENERIC }, + { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_SATA, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, GENERIC }, + { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_SATA2, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, GENERIC }, { PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_IDE<<8, 0xffff00, GENERIC }, + { PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, + PCI_ANY_ID, PCI_ANY_ID, + PCI_CLASS_STORAGE_RAID<<8, 0xffff00, GENERIC }, { 0, } /* terminate list */ }; -#define NV_HOST_FLAGS_SCR_MMIO 0x00000001 - struct nv_host_desc { enum nv_host_type host_type; void (*enable_hotplug)(struct ata_probe_ent *probe_ent); void (*disable_hotplug)(struct ata_host_set *host_set); - void (*check_hotplug)(struct ata_host_set *host_set); + int (*check_hotplug)(struct ata_host_set *host_set); }; static struct nv_host_desc nv_device_tbl[] = { @@ -189,16 +196,14 @@ static struct pci_driver nv_pci_driver = { .remove = ata_pci_remove_one, }; -static Scsi_Host_Template nv_sht = { +static struct scsi_host_template nv_sht = { .module = THIS_MODULE, .name = DRV_NAME, .ioctl = ata_scsi_ioctl, .queuecommand = ata_scsi_queuecmd, - .eh_strategy_handler = ata_scsi_error, .can_queue = ATA_DEF_QUEUE, .this_id = ATA_SHT_THIS_ID, .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, .cmd_per_lun = ATA_SHT_CMD_PER_LUN, .emulated = ATA_SHT_EMULATED, .use_clustering = ATA_SHT_USE_CLUSTERING, @@ -206,10 +211,9 @@ static Scsi_Host_Template nv_sht = { .dma_boundary = ATA_DMA_BOUNDARY, .slave_configure = ata_scsi_slave_config, .bios_param = ata_std_bios_param, - .ordered_flush = 1, }; -static struct ata_port_operations nv_ops = { +static const struct ata_port_operations nv_ops = { .port_disable = ata_port_disable, .tf_load = ata_tf_load, .tf_read = ata_tf_read, @@ -274,18 +278,23 @@ static irqreturn_t nv_interrupt (int irq, void *dev_instance, struct ata_port *ap; ap = host_set->ports[i]; - if (ap && (!(ap->flags & ATA_FLAG_PORT_DISABLED))) { + if (ap && + !(ap->flags & (ATA_FLAG_PORT_DISABLED | ATA_FLAG_NOINTR))) { struct ata_queued_cmd *qc; qc = ata_qc_from_tag(ap, ap->active_tag); if (qc && (!(qc->tf.ctl & ATA_NIEN))) handled += ata_host_intr(ap, qc); + else + // No request pending? Clear interrupt status + // anyway, in case there's one pending. + ap->ops->check_status(ap); } } if (host->host_desc->check_hotplug) - host->host_desc->check_hotplug(host_set); + handled += host->host_desc->check_hotplug(host_set); spin_unlock_irqrestore(&host_set->lock, flags); @@ -294,30 +303,18 @@ static irqreturn_t nv_interrupt (int irq, void *dev_instance, static u32 nv_scr_read (struct ata_port *ap, unsigned int sc_reg) { - struct ata_host_set *host_set = ap->host_set; - struct nv_host *host = host_set->private_data; - if (sc_reg > SCR_CONTROL) return 0xffffffffU; - if (host->host_flags & NV_HOST_FLAGS_SCR_MMIO) - return readl((void*)ap->ioaddr.scr_addr + (sc_reg * 4)); - else - return inl(ap->ioaddr.scr_addr + (sc_reg * 4)); + return ioread32((void __iomem *)ap->ioaddr.scr_addr + (sc_reg * 4)); } static void nv_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val) { - struct ata_host_set *host_set = ap->host_set; - struct nv_host *host = host_set->private_data; - if (sc_reg > SCR_CONTROL) return; - if (host->host_flags & NV_HOST_FLAGS_SCR_MMIO) - writel(val, (void*)ap->ioaddr.scr_addr + (sc_reg * 4)); - else - outl(val, ap->ioaddr.scr_addr + (sc_reg * 4)); + iowrite32(val, (void __iomem *)ap->ioaddr.scr_addr + (sc_reg * 4)); } static void nv_host_stop (struct ata_host_set *host_set) @@ -330,7 +327,7 @@ static void nv_host_stop (struct ata_host_set *host_set) kfree(host); - ata_host_stop(host_set); + ata_pci_host_stop(host_set); } static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) @@ -342,6 +339,7 @@ static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) int pci_dev_busy = 0; int rc; u32 bar; + unsigned long base; // Make sure this is a SATA controller by counting the number of bars // (NVIDIA SATA controllers will always have six bars). Otherwise, @@ -351,7 +349,7 @@ static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) return -ENODEV; if (!printed_version++) - printk(KERN_DEBUG DRV_NAME " version " DRV_VERSION "\n"); + dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n"); rc = pci_enable_device(pdev); if (rc) @@ -373,7 +371,7 @@ static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) rc = -ENOMEM; ppi = &nv_port_info; - probe_ent = ata_pci_init_native_mode(pdev, &ppi); + probe_ent = ata_pci_init_native_mode(pdev, &ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY); if (!probe_ent) goto err_out_regions; @@ -386,32 +384,16 @@ static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) probe_ent->private_data = host; - if (pci_resource_flags(pdev, 5) & IORESOURCE_MEM) - host->host_flags |= NV_HOST_FLAGS_SCR_MMIO; - - if (host->host_flags & NV_HOST_FLAGS_SCR_MMIO) { - unsigned long base; - - probe_ent->mmio_base = ioremap(pci_resource_start(pdev, 5), - pci_resource_len(pdev, 5)); - if (probe_ent->mmio_base == NULL) { - rc = -EIO; - goto err_out_free_host; - } - - base = (unsigned long)probe_ent->mmio_base; + probe_ent->mmio_base = pci_iomap(pdev, 5, 0); + if (!probe_ent->mmio_base) { + rc = -EIO; + goto err_out_free_host; + } - probe_ent->port[0].scr_addr = - base + NV_PORT0_SCR_REG_OFFSET; - probe_ent->port[1].scr_addr = - base + NV_PORT1_SCR_REG_OFFSET; - } else { + base = (unsigned long)probe_ent->mmio_base; - probe_ent->port[0].scr_addr = - pci_resource_start(pdev, 5) | NV_PORT0_SCR_REG_OFFSET; - probe_ent->port[1].scr_addr = - pci_resource_start(pdev, 5) | NV_PORT1_SCR_REG_OFFSET; - } + probe_ent->port[0].scr_addr = base + NV_PORT0_SCR_REG_OFFSET; + probe_ent->port[1].scr_addr = base + NV_PORT1_SCR_REG_OFFSET; pci_set_master(pdev); @@ -428,8 +410,7 @@ static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) return 0; err_out_iounmap: - if (host->host_flags & NV_HOST_FLAGS_SCR_MMIO) - iounmap(probe_ent->mmio_base); + pci_iounmap(pdev, probe_ent->mmio_base); err_out_free_host: kfree(host); err_out_free_ent: @@ -467,7 +448,7 @@ static void nv_disable_hotplug(struct ata_host_set *host_set) outb(intr_mask, host_set->ports[0]->ioaddr.scr_addr + NV_INT_ENABLE); } -static void nv_check_hotplug(struct ata_host_set *host_set) +static int nv_check_hotplug(struct ata_host_set *host_set) { u8 intr_status; @@ -492,7 +473,11 @@ static void nv_check_hotplug(struct ata_host_set *host_set) if (intr_status & NV_INT_STATUS_SDEV_REMOVED) printk(KERN_WARNING "nv_sata: " "Secondary device removed\n"); + + return 1; } + + return 0; } static void nv_enable_hotplug_ck804(struct ata_probe_ent *probe_ent) @@ -530,7 +515,7 @@ static void nv_disable_hotplug_ck804(struct ata_host_set *host_set) pci_write_config_byte(pdev, NV_MCP_SATA_CFG_20, regval); } -static void nv_check_hotplug_ck804(struct ata_host_set *host_set) +static int nv_check_hotplug_ck804(struct ata_host_set *host_set) { u8 intr_status; @@ -555,7 +540,11 @@ static void nv_check_hotplug_ck804(struct ata_host_set *host_set) if (intr_status & NV_INT_STATUS_SDEV_REMOVED) printk(KERN_WARNING "nv_sata: " "Secondary device removed\n"); + + return 1; } + + return 0; } static int __init nv_init(void)