/* * ahci.c - AHCI SATA support * * Maintained by: Jeff Garzik <jgarzik@pobox.com> * Please ALWAYS copy linux-ide@vger.kernel.org * on emails. * * Copyright 2004-2005 Red Hat, Inc. * * * 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. * * 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. * * 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. * * * libata documentation is available via 'make {ps|pdf}docs', * as Documentation/DocBook/libata.* * * AHCI hardware documentation: * http://www.intel.com/technology/serialata/pdf/rev1_0.pdf * http://www.intel.com/technology/serialata/pdf/rev1_1.pdf * */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/pci.h> #include <linux/init.h> #include <linux/blkdev.h> #include <linux/delay.h> #include <linux/interrupt.h> #include <linux/dma-mapping.h> #include <linux/device.h> #include <linux/dmi.h> #include <linux/gfp.h> #include <scsi/scsi_host.h> #include <scsi/scsi_cmnd.h> #include <linux/libata.h> #include "ahci.h" #define DRV_NAME "ahci" #define DRV_VERSION "3.0" enum { AHCI_PCI_BAR = 5, }; enum board_ids { /* board IDs by feature in alphabetical order */ board_ahci, board_ahci_ign_iferr, board_ahci_nosntf, board_ahci_yes_fbs, /* board IDs for specific chipsets in alphabetical order */ board_ahci_mcp65, board_ahci_mcp77, board_ahci_mcp89, board_ahci_mv, board_ahci_sb600, board_ahci_sb700, /* for SB700 and SB800 */ board_ahci_vt8251, /* aliases */ board_ahci_mcp_linux = board_ahci_mcp65, board_ahci_mcp67 = board_ahci_mcp65, board_ahci_mcp73 = board_ahci_mcp65, board_ahci_mcp79 = board_ahci_mcp77, }; static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent); static int ahci_sb600_softreset(struct ata_link *link, unsigned int *class, unsigned long deadline); static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class, unsigned long deadline); static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class, unsigned long deadline); #ifdef CONFIG_PM static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg); static int ahci_pci_device_resume(struct pci_dev *pdev); #endif static struct scsi_host_template ahci_sht = { AHCI_SHT("ahci"), }; static struct ata_port_operations ahci_vt8251_ops = { .inherits = &ahci_ops, .hardreset = ahci_vt8251_hardreset, }; static struct ata_port_operations ahci_p5wdh_ops = { .inherits = &ahci_ops, .hardreset = ahci_p5wdh_hardreset, }; static struct ata_port_operations ahci_sb600_ops = { .inherits = &ahci_ops, .softreset = ahci_sb600_softreset, .pmp_softreset = ahci_sb600_softreset, }; #define AHCI_HFLAGS(flags) .private_data = (void *)(flags) static const struct ata_port_info ahci_port_info[] = { /* by features */ [board_ahci] = { .flags = AHCI_FLAG_COMMON, .pio_mask = ATA_PIO4, .udma_mask = ATA_UDMA6, .port_ops = &ahci_ops, }, [board_ahci_ign_iferr] = { AHCI_HFLAGS (AHCI_HFLAG_IGN_IRQ_IF_ERR), .flags = AHCI_FLAG_COMMON, .pio_mask = ATA_PIO4, .udma_mask = ATA_UDMA6, .port_ops = &ahci_ops, }, [board_ahci_nosntf] = { AHCI_HFLAGS (AHCI_HFLAG_NO_SNTF), .flags = AHCI_FLAG_COMMON, .pio_mask = ATA_PIO4, .udma_mask = ATA_UDMA6, .port_ops = &ahci_ops, }, [board_ahci_yes_fbs] = { AHCI_HFLAGS (AHCI_HFLAG_YES_FBS), .flags = AHCI_FLAG_COMMON, .pio_mask = ATA_PIO4, .udma_mask = ATA_UDMA6, .port_ops = &ahci_ops, }, /* by chipsets */ [board_ahci_mcp65] = { AHCI_HFLAGS (AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP | AHCI_HFLAG_YES_NCQ), .flags = AHCI_FLAG_COMMON, .pio_mask = ATA_PIO4, .udma_mask = ATA_UDMA6, .port_ops = &ahci_ops, }, [board_ahci_mcp77] = { AHCI_HFLAGS (AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP), .flags = AHCI_FLAG_COMMON, .pio_mask = ATA_PIO4, .udma_mask = ATA_UDMA6, .port_ops = &ahci_ops, }, [board_ahci_mcp89] = { AHCI_HFLAGS (AHCI_HFLAG_NO_FPDMA_AA), .flags = AHCI_FLAG_COMMON, .pio_mask = ATA_PIO4, .udma_mask = ATA_UDMA6, .port_ops = &ahci_ops, }, [board_ahci_mv] = { AHCI_HFLAGS (AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_MSI | AHCI_HFLAG_MV_PATA | AHCI_HFLAG_NO_PMP), .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA, .pio_mask = ATA_PIO4, .udma_mask = ATA_UDMA6, .port_ops = &ahci_ops, }, [board_ahci_sb600] = { AHCI_HFLAGS (AHCI_HFLAG_IGN_SERR_INTERNAL | AHCI_HFLAG_NO_MSI | AHCI_HFLAG_SECT255 | AHCI_HFLAG_32BIT_ONLY), .flags = AHCI_FLAG_COMMON, .pio_mask = ATA_PIO4, .udma_mask = ATA_UDMA6, .port_ops = &ahci_sb600_ops, }, [board_ahci_sb700] = /* for SB700 and SB800 */ { AHCI_HFLAGS (AHCI_HFLAG_IGN_SERR_INTERNAL), .flags = AHCI_FLAG_COMMON, .pio_mask = ATA_PIO4, .udma_mask = ATA_UDMA6, .port_ops = &ahci_sb600_ops, }, [board_ahci_vt8251] = { AHCI_HFLAGS (AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_PMP), .flags = AHCI_FLAG_COMMON, .pio_mask = ATA_PIO4, .udma_mask = ATA_UDMA6, .port_ops = &ahci_vt8251_ops, }, }; static const struct pci_device_id ahci_pci_tbl[] = { /* Intel */ { PCI_VDEVICE(INTEL, 0x2652), board_ahci }, /* ICH6 */ { PCI_VDEVICE(INTEL, 0x2653), board_ahci }, /* ICH6M */ { PCI_VDEVICE(INTEL, 0x27c1), board_ahci }, /* ICH7 */ { PCI_VDEVICE(INTEL, 0x27c5), board_ahci }, /* ICH7M */ { PCI_VDEVICE(INTEL, 0x27c3), board_ahci }, /* ICH7R */ { PCI_VDEVICE(AL, 0x5288), board_ahci_ign_iferr }, /* ULi M5288 */ { PCI_VDEVICE(INTEL, 0x2681), board_ahci }, /* ESB2 */ { PCI_VDEVICE(INTEL, 0x2682), board_ahci }, /* ESB2 */ { PCI_VDEVICE(INTEL, 0x2683), board_ahci }, /* ESB2 */ { PCI_VDEVICE(INTEL, 0x27c6), board_ahci }, /* ICH7-M DH */ { PCI_VDEVICE(INTEL, 0x2821), board_ahci }, /* ICH8 */ { PCI_VDEVICE(INTEL, 0x2822), board_ahci_nosntf }, /* ICH8 */ { PCI_VDEVICE(INTEL, 0x2824), board_ahci }, /* ICH8 */ { PCI_VDEVICE(INTEL, 0x2829), board_ahci }, /* ICH8M */ { PCI_VDEVICE(INTEL, 0x282a), board_ahci }, /* ICH8M */ { PCI_VDEVICE(INTEL, 0x2922), board_ahci }, /* ICH9 */ { PCI_VDEVICE(INTEL, 0x2923), board_ahci }, /* ICH9 */ { PCI_VDEVICE(INTEL, 0x2924), board_ahci }, /* ICH9 */ { PCI_VDEVICE(INTEL, 0x2925), board_ahci }, /* ICH9 */ { PCI_VDEVICE(INTEL, 0x2927), board_ahci }, /* ICH9 */ { PCI_VDEVICE(INTEL, 0x2929), board_ahci }, /* ICH9M */ { PCI_VDEVICE(INTEL, 0x292a), board_ahci }, /* ICH9M */ { PCI_VDEVICE(INTEL, 0x292b), board_ahci }, /* ICH9M */ { PCI_VDEVICE(INTEL, 0x292c), board_ahci }, /* ICH9M */ { PCI_VDEVICE(INTEL, 0x292f), board_ahci }, /* ICH9M */ { PCI_VDEVICE(INTEL, 0x294d), board_ahci }, /* ICH9 */ { PCI_VDEVICE(INTEL, 0x294e), board_ahci }, /* ICH9M */ { PCI_VDEVICE(INTEL, 0x502a), board_ahci }, /* Tolapai */ { PCI_VDEVICE(INTEL, 0x502b), board_ahci }, /* Tolapai */ { PCI_VDEVICE(INTEL, 0x3a05), board_ahci }, /* ICH10 */ { PCI_VDEVICE(INTEL, 0x3a22), board_ahci }, /* ICH10 */ { PCI_VDEVICE(INTEL, 0x3a25), board_ahci }, /* ICH10 */ { PCI_VDEVICE(INTEL, 0x3b22), board_ahci }, /* PCH AHCI */ { PCI_VDEVICE(INTEL, 0x3b23), board_ahci }, /* PCH AHCI */ { PCI_VDEVICE(INTEL, 0x3b24), board_ahci }, /* PCH RAID */ { PCI_VDEVICE(INTEL, 0x3b25), board_ahci }, /* PCH RAID */ { PCI_VDEVICE(INTEL, 0x3b29), board_ahci }, /* PCH AHCI */ { PCI_VDEVICE(INTEL, 0x3b2b), board_ahci }, /* PCH RAID */ { PCI_VDEVICE(INTEL, 0x3b2c), board_ahci }, /* PCH RAID */ { PCI_VDEVICE(INTEL, 0x3b2f), board_ahci }, /* PCH AHCI */ { PCI_VDEVICE(INTEL, 0x1c02), board_ahci }, /* CPT AHCI */ { PCI_VDEVICE(INTEL, 0x1c03), board_ahci }, /* CPT AHCI */ { PCI_VDEVICE(INTEL, 0x1c04), board_ahci }, /* CPT RAID */ { 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 */ { PCI_VDEVICE(INTEL, 0x2323), board_ahci }, /* DH89xxCC AHCI */ /* 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, PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci_ign_iferr }, /* ATI */ { PCI_VDEVICE(ATI, 0x4380), board_ahci_sb600 }, /* ATI SB600 */ { PCI_VDEVICE(ATI, 0x4390), board_ahci_sb700 }, /* ATI SB700/800 */ { PCI_VDEVICE(ATI, 0x4391), board_ahci_sb700 }, /* ATI SB700/800 */ { PCI_VDEVICE(ATI, 0x4392), board_ahci_sb700 }, /* ATI SB700/800 */ { PCI_VDEVICE(ATI, 0x4393), board_ahci_sb700 }, /* ATI SB700/800 */ { PCI_VDEVICE(ATI, 0x4394), board_ahci_sb700 }, /* ATI SB700/800 */ { PCI_VDEVICE(ATI, 0x4395), board_ahci_sb700 }, /* ATI SB700/800 */ /* AMD */ { PCI_VDEVICE(AMD, 0x7800), board_ahci }, /* AMD Hudson-2 */ /* AMD is using RAID class only for ahci controllers */ { PCI_VENDOR_ID_AMD, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci }, /* VIA */ { PCI_VDEVICE(VIA, 0x3349), board_ahci_vt8251 }, /* VIA VT8251 */ { PCI_VDEVICE(VIA, 0x6287), board_ahci_vt8251 }, /* VIA VT8251 */ /* NVIDIA */ { PCI_VDEVICE(NVIDIA, 0x044c), board_ahci_mcp65 }, /* MCP65 */ { PCI_VDEVICE(NVIDIA, 0x044d), board_ahci_mcp65 }, /* MCP65 */ { PCI_VDEVICE(NVIDIA, 0x044e), board_ahci_mcp65 }, /* MCP65 */ { PCI_VDEVICE(NVIDIA, 0x044f), board_ahci_mcp65 }, /* MCP65 */ { PCI_VDEVICE(NVIDIA, 0x045c), board_ahci_mcp65 }, /* MCP65 */ { PCI_VDEVICE(NVIDIA, 0x045d), board_ahci_mcp65 }, /* MCP65 */ { PCI_VDEVICE(NVIDIA, 0x045e), board_ahci_mcp65 }, /* MCP65 */ { PCI_VDEVICE(NVIDIA, 0x045f), board_ahci_mcp65 }, /* MCP65 */ { PCI_VDEVICE(NVIDIA, 0x0550), board_ahci_mcp67 }, /* MCP67 */ { PCI_VDEVICE(NVIDIA, 0x0551), board_ahci_mcp67 }, /* MCP67 */ { PCI_VDEVICE(NVIDIA, 0x0552), board_ahci_mcp67 }, /* MCP67 */ { PCI_VDEVICE(NVIDIA, 0x0553), board_ahci_mcp67 }, /* MCP67 */ { PCI_VDEVICE(NVIDIA, 0x0554), board_ahci_mcp67 }, /* MCP67 */ { PCI_VDEVICE(NVIDIA, 0x0555), board_ahci_mcp67 }, /* MCP67 */ { PCI_VDEVICE(NVIDIA, 0x0556), board_ahci_mcp67 }, /* MCP67 */ { PCI_VDEVICE(NVIDIA, 0x0557), board_ahci_mcp67 }, /* MCP67 */ { PCI_VDEVICE(NVIDIA, 0x0558), board_ahci_mcp67 }, /* MCP67 */ { PCI_VDEVICE(NVIDIA, 0x0559), board_ahci_mcp67 }, /* MCP67 */ { PCI_VDEVICE(NVIDIA, 0x055a), board_ahci_mcp67 }, /* MCP67 */ { PCI_VDEVICE(NVIDIA, 0x055b), board_ahci_mcp67 }, /* MCP67 */ { PCI_VDEVICE(NVIDIA, 0x0580), board_ahci_mcp_linux }, /* Linux ID */ { PCI_VDEVICE(NVIDIA, 0x0581), board_ahci_mcp_linux }, /* Linux ID */ { PCI_VDEVICE(NVIDIA, 0x0582), board_ahci_mcp_linux }, /* Linux ID */ { PCI_VDEVICE(NVIDIA, 0x0583), board_ahci_mcp_linux }, /* Linux ID */ { PCI_VDEVICE(NVIDIA, 0x0584), board_ahci_mcp_linux }, /* Linux ID */ { PCI_VDEVICE(NVIDIA, 0x0585), board_ahci_mcp_linux }, /* Linux ID */ { PCI_VDEVICE(NVIDIA, 0x0586), board_ahci_mcp_linux }, /* Linux ID */ { PCI_VDEVICE(NVIDIA, 0x0587), board_ahci_mcp_linux }, /* Linux ID */ { PCI_VDEVICE(NVIDIA, 0x0588), board_ahci_mcp_linux }, /* Linux ID */ { PCI_VDEVICE(NVIDIA, 0x0589), board_ahci_mcp_linux }, /* Linux ID */ { PCI_VDEVICE(NVIDIA, 0x058a), board_ahci_mcp_linux }, /* Linux ID */ { PCI_VDEVICE(NVIDIA, 0x058b), board_ahci_mcp_linux }, /* Linux ID */ { PCI_VDEVICE(NVIDIA, 0x058c), board_ahci_mcp_linux }, /* Linux ID */ { PCI_VDEVICE(NVIDIA, 0x058d), board_ahci_mcp_linux }, /* Linux ID */ { PCI_VDEVICE(NVIDIA, 0x058e), board_ahci_mcp_linux }, /* Linux ID */ { PCI_VDEVICE(NVIDIA, 0x058f), board_ahci_mcp_linux }, /* Linux ID */ { PCI_VDEVICE(NVIDIA, 0x07f0), board_ahci_mcp73 }, /* MCP73 */ { PCI_VDEVICE(NVIDIA, 0x07f1), board_ahci_mcp73 }, /* MCP73 */ { PCI_VDEVICE(NVIDIA, 0x07f2), board_ahci_mcp73 }, /* MCP73 */ { PCI_VDEVICE(NVIDIA, 0x07f3), board_ahci_mcp73 }, /* MCP73 */ { PCI_VDEVICE(NVIDIA, 0x07f4), board_ahci_mcp73 }, /* MCP73 */ { PCI_VDEVICE(NVIDIA, 0x07f5), board_ahci_mcp73 }, /* MCP73 */ { PCI_VDEVICE(NVIDIA, 0x07f6), board_ahci_mcp73 }, /* MCP73 */ { PCI_VDEVICE(NVIDIA, 0x07f7), board_ahci_mcp73 }, /* MCP73 */ { PCI_VDEVICE(NVIDIA, 0x07f8), board_ahci_mcp73 }, /* MCP73 */ { PCI_VDEVICE(NVIDIA, 0x07f9), board_ahci_mcp73 }, /* MCP73 */ { PCI_VDEVICE(NVIDIA, 0x07fa), board_ahci_mcp73 }, /* MCP73 */ { PCI_VDEVICE(NVIDIA, 0x07fb), board_ahci_mcp73 }, /* MCP73 */ { PCI_VDEVICE(NVIDIA, 0x0ad0), board_ahci_mcp77 }, /* MCP77 */ { PCI_VDEVICE(NVIDIA, 0x0ad1), board_ahci_mcp77 }, /* MCP77 */ { PCI_VDEVICE(NVIDIA, 0x0ad2), board_ahci_mcp77 }, /* MCP77 */ { PCI_VDEVICE(NVIDIA, 0x0ad3), board_ahci_mcp77 }, /* MCP77 */ { PCI_VDEVICE(NVIDIA, 0x0ad4), board_ahci_mcp77 }, /* MCP77 */ { PCI_VDEVICE(NVIDIA, 0x0ad5), board_ahci_mcp77 }, /* MCP77 */ { PCI_VDEVICE(NVIDIA, 0x0ad6), board_ahci_mcp77 }, /* MCP77 */ { PCI_VDEVICE(NVIDIA, 0x0ad7), board_ahci_mcp77 }, /* MCP77 */ { PCI_VDEVICE(NVIDIA, 0x0ad8), board_ahci_mcp77 }, /* MCP77 */ { PCI_VDEVICE(NVIDIA, 0x0ad9), board_ahci_mcp77 }, /* MCP77 */ { PCI_VDEVICE(NVIDIA, 0x0ada), board_ahci_mcp77 }, /* MCP77 */ { PCI_VDEVICE(NVIDIA, 0x0adb), board_ahci_mcp77 }, /* MCP77 */ { PCI_VDEVICE(NVIDIA, 0x0ab4), board_ahci_mcp79 }, /* MCP79 */ { PCI_VDEVICE(NVIDIA, 0x0ab5), board_ahci_mcp79 }, /* MCP79 */ { PCI_VDEVICE(NVIDIA, 0x0ab6), board_ahci_mcp79 }, /* MCP79 */ { PCI_VDEVICE(NVIDIA, 0x0ab7), board_ahci_mcp79 }, /* MCP79 */ { PCI_VDEVICE(NVIDIA, 0x0ab8), board_ahci_mcp79 }, /* MCP79 */ { PCI_VDEVICE(NVIDIA, 0x0ab9), board_ahci_mcp79 }, /* MCP79 */ { PCI_VDEVICE(NVIDIA, 0x0aba), board_ahci_mcp79 }, /* MCP79 */ { PCI_VDEVICE(NVIDIA, 0x0abb), board_ahci_mcp79 }, /* MCP79 */ { PCI_VDEVICE(NVIDIA, 0x0abc), board_ahci_mcp79 }, /* MCP79 */ { PCI_VDEVICE(NVIDIA, 0x0abd), board_ahci_mcp79 }, /* MCP79 */ { PCI_VDEVICE(NVIDIA, 0x0abe), board_ahci_mcp79 }, /* MCP79 */ { PCI_VDEVICE(NVIDIA, 0x0abf), board_ahci_mcp79 }, /* MCP79 */ { PCI_VDEVICE(NVIDIA, 0x0d84), board_ahci_mcp89 }, /* MCP89 */ { PCI_VDEVICE(NVIDIA, 0x0d85), board_ahci_mcp89 }, /* MCP89 */ { PCI_VDEVICE(NVIDIA, 0x0d86), board_ahci_mcp89 }, /* MCP89 */ { PCI_VDEVICE(NVIDIA, 0x0d87), board_ahci_mcp89 }, /* MCP89 */ { PCI_VDEVICE(NVIDIA, 0x0d88), board_ahci_mcp89 }, /* MCP89 */ { PCI_VDEVICE(NVIDIA, 0x0d89), board_ahci_mcp89 }, /* MCP89 */ { PCI_VDEVICE(NVIDIA, 0x0d8a), board_ahci_mcp89 }, /* MCP89 */ { PCI_VDEVICE(NVIDIA, 0x0d8b), board_ahci_mcp89 }, /* MCP89 */ { PCI_VDEVICE(NVIDIA, 0x0d8c), board_ahci_mcp89 }, /* MCP89 */ { PCI_VDEVICE(NVIDIA, 0x0d8d), board_ahci_mcp89 }, /* MCP89 */ { PCI_VDEVICE(NVIDIA, 0x0d8e), board_ahci_mcp89 }, /* MCP89 */ { PCI_VDEVICE(NVIDIA, 0x0d8f), board_ahci_mcp89 }, /* MCP89 */ /* SiS */ { PCI_VDEVICE(SI, 0x1184), board_ahci }, /* SiS 966 */ { PCI_VDEVICE(SI, 0x1185), board_ahci }, /* SiS 968 */ { PCI_VDEVICE(SI, 0x0186), board_ahci }, /* SiS 968 */ /* Marvell */ { PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv }, /* 6145 */ { PCI_VDEVICE(MARVELL, 0x6121), board_ahci_mv }, /* 6121 */ { PCI_DEVICE(0x1b4b, 0x9123), .class = PCI_CLASS_STORAGE_SATA_AHCI, .class_mask = 0xffffff, .driver_data = board_ahci_yes_fbs }, /* 88se9128 */ /* Promise */ { PCI_VDEVICE(PROMISE, 0x3f20), board_ahci }, /* PDC42819 */ /* Generic, PCI class code for AHCI */ { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci }, { } /* terminate list */ }; static struct pci_driver ahci_pci_driver = { .name = DRV_NAME, .id_table = ahci_pci_tbl, .probe = ahci_init_one, .remove = ata_pci_remove_one, #ifdef CONFIG_PM .suspend = ahci_pci_device_suspend, .resume = ahci_pci_device_resume, #endif }; #if defined(CONFIG_PATA_MARVELL) || defined(CONFIG_PATA_MARVELL_MODULE) static int marvell_enable; #else static int marvell_enable = 1; #endif module_param(marvell_enable, int, 0644); MODULE_PARM_DESC(marvell_enable, "Marvell SATA via AHCI (1 = enabled)"); static void ahci_pci_save_initial_config(struct pci_dev *pdev, struct ahci_host_priv *hpriv) { unsigned int force_port_map = 0; unsigned int mask_port_map = 0; if (pdev->vendor == PCI_VENDOR_ID_JMICRON && pdev->device == 0x2361) { dev_info(&pdev->dev, "JMB361 has only one port\n"); force_port_map = 1; } /* * Temporary Marvell 6145 hack: PATA port presence * is asserted through the standard AHCI port * presence register, as bit 4 (counting from 0) */ if (hpriv->flags & AHCI_HFLAG_MV_PATA) { if (pdev->device == 0x6121) mask_port_map = 0x3; else mask_port_map = 0xf; dev_info(&pdev->dev, "Disabling your PATA port. Use the boot option 'ahci.marvell_enable=0' to avoid this.\n"); } ahci_save_initial_config(&pdev->dev, hpriv, force_port_map, mask_port_map); } static int ahci_pci_reset_controller(struct ata_host *host) { struct pci_dev *pdev = to_pci_dev(host->dev); ahci_reset_controller(host); if (pdev->vendor == PCI_VENDOR_ID_INTEL) { struct ahci_host_priv *hpriv = host->private_data; u16 tmp16; /* configure PCS */ pci_read_config_word(pdev, 0x92, &tmp16); if ((tmp16 & hpriv->port_map) != hpriv->port_map) { tmp16 |= hpriv->port_map; pci_write_config_word(pdev, 0x92, tmp16); } } return 0; } static void ahci_pci_init_controller(struct ata_host *host) { struct ahci_host_priv *hpriv = host->private_data; struct pci_dev *pdev = to_pci_dev(host->dev); void __iomem *port_mmio; u32 tmp; int mv; if (hpriv->flags & AHCI_HFLAG_MV_PATA) { if (pdev->device == 0x6121) mv = 2; else mv = 4; port_mmio = __ahci_port_base(host, mv); writel(0, port_mmio + PORT_IRQ_MASK); /* clear port IRQ */ tmp = readl(port_mmio + PORT_IRQ_STAT); VPRINTK("PORT_IRQ_STAT 0x%x\n", tmp); if (tmp) writel(tmp, port_mmio + PORT_IRQ_STAT); } ahci_init_controller(host); } static int ahci_sb600_check_ready(struct ata_link *link) { void __iomem *port_mmio = ahci_port_base(link->ap); u8 status = readl(port_mmio + PORT_TFDATA) & 0xFF; u32 irq_status = readl(port_mmio + PORT_IRQ_STAT); /* * There is no need to check TFDATA if BAD PMP is found due to HW bug, * which can save timeout delay. */ if (irq_status & PORT_IRQ_BAD_PMP) return -EIO; return ata_check_ready(status); } static int ahci_sb600_softreset(struct ata_link *link, unsigned int *class, unsigned long deadline) { struct ata_port *ap = link->ap; void __iomem *port_mmio = ahci_port_base(ap); int pmp = sata_srst_pmp(link); int rc; u32 irq_sts; DPRINTK("ENTER\n"); rc = ahci_do_softreset(link, class, pmp, deadline, ahci_sb600_check_ready); /* * Soft reset fails on some ATI chips with IPMS set when PMP * is enabled but SATA HDD/ODD is connected to SATA port, * do soft reset again to port 0. */ if (rc == -EIO) { irq_sts = readl(port_mmio + PORT_IRQ_STAT); if (irq_sts & PORT_IRQ_BAD_PMP) { ata_link_printk(link, KERN_WARNING, "applying SB600 PMP SRST workaround " "and retrying\n"); rc = ahci_do_softreset(link, class, 0, deadline, ahci_check_ready); } } return rc; } static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class, unsigned long deadline) { struct ata_port *ap = link->ap; bool online; int rc; DPRINTK("ENTER\n"); ahci_stop_engine(ap); rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context), deadline, &online, NULL); ahci_start_engine(ap); DPRINTK("EXIT, rc=%d, class=%u\n", rc, *class); /* vt8251 doesn't clear BSY on signature FIS reception, * request follow-up softreset. */ return online ? -EAGAIN : rc; } static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class, unsigned long deadline) { struct ata_port *ap = link->ap; struct ahci_port_priv *pp = ap->private_data; u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG; struct ata_taskfile tf; bool online; int rc; ahci_stop_engine(ap); /* clear D2H reception area to properly wait for D2H FIS */ ata_tf_init(link->device, &tf); tf.command = 0x80; ata_tf_to_fis(&tf, 0, 0, d2h_fis); rc = sata_link_hardreset(link, sata_ehc_deb_timing(&link->eh_context), deadline, &online, NULL); ahci_start_engine(ap); /* The pseudo configuration device on SIMG4726 attached to * ASUS P5W-DH Deluxe doesn't send signature FIS after * hardreset if no device is attached to the first downstream * port && the pseudo device locks up on SRST w/ PMP==0. To * work around this, wait for !BSY only briefly. If BSY isn't * cleared, perform CLO and proceed to IDENTIFY (achieved by * ATA_LFLAG_NO_SRST and ATA_LFLAG_ASSUME_ATA). * * Wait for two seconds. Devices attached to downstream port * which can't process the following IDENTIFY after this will * have to be reset again. For most cases, this should * suffice while making probing snappish enough. */ if (online) { rc = ata_wait_after_reset(link, jiffies + 2 * HZ, ahci_check_ready); if (rc) ahci_kick_engine(ap); } return rc; } #ifdef CONFIG_PM static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg) { struct ata_host *host = dev_get_drvdata(&pdev->dev); struct ahci_host_priv *hpriv = host->private_data; void __iomem *mmio = hpriv->mmio; u32 ctl; if (mesg.event & PM_EVENT_SUSPEND && hpriv->flags & AHCI_HFLAG_NO_SUSPEND) { dev_printk(KERN_ERR, &pdev->dev, "BIOS update required for suspend/resume\n"); return -EIO; } if (mesg.event & PM_EVENT_SLEEP) { /* AHCI spec rev1.1 section 8.3.3: * Software must disable interrupts prior to requesting a * transition of the HBA to D3 state. */ ctl = readl(mmio + HOST_CTL); ctl &= ~HOST_IRQ_EN; writel(ctl, mmio + HOST_CTL); readl(mmio + HOST_CTL); /* flush */ } return ata_pci_device_suspend(pdev, mesg); } static int ahci_pci_device_resume(struct pci_dev *pdev) { struct ata_host *host = dev_get_drvdata(&pdev->dev); int rc; rc = ata_pci_device_do_resume(pdev); if (rc) return rc; if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) { rc = ahci_pci_reset_controller(host); if (rc) return rc; ahci_pci_init_controller(host); } ata_host_resume(host); return 0; } #endif static int ahci_configure_dma_masks(struct pci_dev *pdev, int using_dac) { int rc; if (using_dac && !pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) { rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); if (rc) { rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); if (rc) { dev_printk(KERN_ERR, &pdev->dev, "64-bit DMA enable failed\n"); return rc; } } } else { rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); if (rc) { dev_printk(KERN_ERR, &pdev->dev, "32-bit DMA enable failed\n"); return rc; } rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); if (rc) { dev_printk(KERN_ERR, &pdev->dev, "32-bit consistent DMA enable failed\n"); return rc; } } return 0; } static void ahci_pci_print_info(struct ata_host *host) { struct pci_dev *pdev = to_pci_dev(host->dev); u16 cc; const char *scc_s; pci_read_config_word(pdev, 0x0a, &cc); if (cc == PCI_CLASS_STORAGE_IDE) scc_s = "IDE"; else if (cc == PCI_CLASS_STORAGE_SATA) scc_s = "SATA"; else if (cc == PCI_CLASS_STORAGE_RAID) scc_s = "RAID"; else scc_s = "unknown"; ahci_print_info(host, scc_s); } /* On ASUS P5W DH Deluxe, the second port of PCI device 00:1f.2 is * hardwired to on-board SIMG 4726. The chipset is ICH8 and doesn't * support PMP and the 4726 either directly exports the device * attached to the first downstream port or acts as a hardware storage * controller and emulate a single ATA device (can be RAID 0/1 or some * other configuration). * * When there's no device attached to the first downstream port of the * 4726, "Config Disk" appears, which is a pseudo ATA device to * configure the 4726. However, ATA emulation of the device is very * lame. It doesn't send signature D2H Reg FIS after the initial * hardreset, pukes on SRST w/ PMP==0 and has bunch of other issues. * * The following function works around the problem by always using * hardreset on the port and not depending on receiving signature FIS * afterward. If signature FIS isn't received soon, ATA class is * assumed without follow-up softreset. */ static void ahci_p5wdh_workaround(struct ata_host *host) { static struct dmi_system_id sysids[] = { { .ident = "P5W DH Deluxe", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "ASUSTEK COMPUTER INC"), DMI_MATCH(DMI_PRODUCT_NAME, "P5W DH Deluxe"), }, }, { } }; struct pci_dev *pdev = to_pci_dev(host->dev); if (pdev->bus->number == 0 && pdev->devfn == PCI_DEVFN(0x1f, 2) && dmi_check_system(sysids)) { struct ata_port *ap = host->ports[1]; dev_printk(KERN_INFO, &pdev->dev, "enabling ASUS P5W DH " "Deluxe on-board SIMG4726 workaround\n"); ap->ops = &ahci_p5wdh_ops; ap->link.flags |= ATA_LFLAG_NO_SRST | ATA_LFLAG_ASSUME_ATA; } } /* only some SB600 ahci controllers can do 64bit DMA */ static bool ahci_sb600_enable_64bit(struct pci_dev *pdev) { static const struct dmi_system_id sysids[] = { /* * The oldest version known to be broken is 0901 and * working is 1501 which was released on 2007-10-26. * Enable 64bit DMA on 1501 and anything newer. * * Please read bko#9412 for more info. */ { .ident = "ASUS M2A-VM", .matches = { DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."), DMI_MATCH(DMI_BOARD_NAME, "M2A-VM"), }, .driver_data = "20071026", /* yyyymmdd */ }, /* * All BIOS versions for the MSI K9A2 Platinum (MS-7376) * support 64bit DMA. * * BIOS versions earlier than 1.5 had the Manufacturer DMI * fields as "MICRO-STAR INTERANTIONAL CO.,LTD". * This spelling mistake was fixed in BIOS version 1.5, so * 1.5 and later have the Manufacturer as * "MICRO-STAR INTERNATIONAL CO.,LTD". * So try to match on DMI_BOARD_VENDOR of "MICRO-STAR INTER". * * BIOS versions earlier than 1.9 had a Board Product Name * DMI field of "MS-7376". This was changed to be * "K9A2 Platinum (MS-7376)" in version 1.9, but we can still * match on DMI_BOARD_NAME of "MS-7376". */ { .ident = "MSI K9A2 Platinum", .matches = { DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTER"), DMI_MATCH(DMI_BOARD_NAME, "MS-7376"), }, }, { } }; const struct dmi_system_id *match; int year, month, date; char buf[9]; match = dmi_first_match(sysids); if (pdev->bus->number != 0 || pdev->devfn != PCI_DEVFN(0x12, 0) || !match) return false; if (!match->driver_data) goto enable_64bit; dmi_get_date(DMI_BIOS_DATE, &year, &month, &date); snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date); if (strcmp(buf, match->driver_data) >= 0) goto enable_64bit; else { dev_printk(KERN_WARNING, &pdev->dev, "%s: BIOS too old, " "forcing 32bit DMA, update BIOS\n", match->ident); return false; } enable_64bit: dev_printk(KERN_WARNING, &pdev->dev, "%s: enabling 64bit DMA\n", match->ident); return true; } static bool ahci_broken_system_poweroff(struct pci_dev *pdev) { static const struct dmi_system_id broken_systems[] = { { .ident = "HP Compaq nx6310", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6310"), }, /* PCI slot number of the controller */ .driver_data = (void *)0x1FUL, }, { .ident = "HP Compaq 6720s", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6720s"), }, /* PCI slot number of the controller */ .driver_data = (void *)0x1FUL, }, { } /* terminate list */ }; const struct dmi_system_id *dmi = dmi_first_match(broken_systems); if (dmi) { unsigned long slot = (unsigned long)dmi->driver_data; /* apply the quirk only to on-board controllers */ return slot == PCI_SLOT(pdev->devfn); } return false; } static bool ahci_broken_suspend(struct pci_dev *pdev) { static const struct dmi_system_id sysids[] = { /* * On HP dv[4-6] and HDX18 with earlier BIOSen, link * to the harddisk doesn't become online after * resuming from STR. Warn and fail suspend. * * http://bugzilla.kernel.org/show_bug.cgi?id=12276 * * Use dates instead of versions to match as HP is * apparently recycling both product and version * strings. * * http://bugzilla.kernel.org/show_bug.cgi?id=15462 */ { .ident = "dv4", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv4 Notebook PC"), }, .driver_data = "20090105", /* F.30 */ }, { .ident = "dv5", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv5 Notebook PC"), }, .driver_data = "20090506", /* F.16 */ }, { .ident = "dv6", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv6 Notebook PC"), }, .driver_data = "20090423", /* F.21 */ }, { .ident = "HDX18", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), DMI_MATCH(DMI_PRODUCT_NAME, "HP HDX18 Notebook PC"), }, .driver_data = "20090430", /* F.23 */ }, /* * Acer eMachines G725 has the same problem. BIOS * V1.03 is known to be broken. V3.04 is known to * work. Inbetween, there are V1.06, V2.06 and V3.03 * that we don't have much idea about. For now, * blacklist anything older than V3.04. * * http://bugzilla.kernel.org/show_bug.cgi?id=15104 */ { .ident = "G725", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "eMachines"), DMI_MATCH(DMI_PRODUCT_NAME, "eMachines G725"), }, .driver_data = "20091216", /* V3.04 */ }, { } /* terminate list */ }; const struct dmi_system_id *dmi = dmi_first_match(sysids); int year, month, date; char buf[9]; if (!dmi || pdev->bus->number || pdev->devfn != PCI_DEVFN(0x1f, 2)) return false; dmi_get_date(DMI_BIOS_DATE, &year, &month, &date); snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date); return strcmp(buf, dmi->driver_data) < 0; } static bool ahci_broken_online(struct pci_dev *pdev) { #define ENCODE_BUSDEVFN(bus, slot, func) \ (void *)(unsigned long)(((bus) << 8) | PCI_DEVFN((slot), (func))) static const struct dmi_system_id sysids[] = { /* * There are several gigabyte boards which use * SIMG5723s configured as hardware RAID. Certain * 5723 firmware revisions shipped there keep the link * online but fail to answer properly to SRST or * IDENTIFY when no device is attached downstream * causing libata to retry quite a few times leading * to excessive detection delay. * * As these firmwares respond to the second reset try * with invalid device signature, considering unknown * sig as offline works around the problem acceptably. */ { .ident = "EP45-DQ6", .matches = { DMI_MATCH(DMI_BOARD_VENDOR, "Gigabyte Technology Co., Ltd."), DMI_MATCH(DMI_BOARD_NAME, "EP45-DQ6"), }, .driver_data = ENCODE_BUSDEVFN(0x0a, 0x00, 0), }, { .ident = "EP45-DS5", .matches = { DMI_MATCH(DMI_BOARD_VENDOR, "Gigabyte Technology Co., Ltd."), DMI_MATCH(DMI_BOARD_NAME, "EP45-DS5"), }, .driver_data = ENCODE_BUSDEVFN(0x03, 0x00, 0), }, { } /* terminate list */ }; #undef ENCODE_BUSDEVFN const struct dmi_system_id *dmi = dmi_first_match(sysids); unsigned int val; if (!dmi) return false; val = (unsigned long)dmi->driver_data; return pdev->bus->number == (val >> 8) && pdev->devfn == (val & 0xff); } #ifdef CONFIG_ATA_ACPI static void ahci_gtf_filter_workaround(struct ata_host *host) { static const struct dmi_system_id sysids[] = { /* * Aspire 3810T issues a bunch of SATA enable commands * via _GTF including an invalid one and one which is * rejected by the device. Among the successful ones * is FPDMA non-zero offset enable which when enabled * only on the drive side leads to NCQ command * failures. Filter it out. */ { .ident = "Aspire 3810T", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Acer"), DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3810T"), }, .driver_data = (void *)ATA_ACPI_FILTER_FPDMA_OFFSET, }, { } }; const struct dmi_system_id *dmi = dmi_first_match(sysids); unsigned int filter; int i; if (!dmi) return; filter = (unsigned long)dmi->driver_data; dev_printk(KERN_INFO, host->dev, "applying extra ACPI _GTF filter 0x%x for %s\n", filter, dmi->ident); for (i = 0; i < host->n_ports; i++) { struct ata_port *ap = host->ports[i]; struct ata_link *link; struct ata_device *dev; ata_for_each_link(link, ap, EDGE) ata_for_each_dev(dev, link, ALL) dev->gtf_filter |= filter; } } #else static inline void ahci_gtf_filter_workaround(struct ata_host *host) {} #endif static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) { static int printed_version; unsigned int board_id = ent->driver_data; struct ata_port_info pi = ahci_port_info[board_id]; const struct ata_port_info *ppi[] = { &pi, NULL }; struct device *dev = &pdev->dev; struct ahci_host_priv *hpriv; struct ata_host *host; int n_ports, i, rc; VPRINTK("ENTER\n"); WARN_ON((int)ATA_MAX_QUEUE > AHCI_MAX_CMDS); if (!printed_version++) dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n"); /* The AHCI driver can only drive the SATA ports, the PATA driver can drive them all so if both drivers are selected make sure AHCI stays out of the way */ if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable) return -ENODEV; /* * For some reason, MCP89 on MacBook 7,1 doesn't work with * ahci, use ata_generic instead. */ if (pdev->vendor == PCI_VENDOR_ID_NVIDIA && pdev->device == PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA && pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE && pdev->subsystem_device == 0xcb89) return -ENODEV; /* Promise's PDC42819 is a SAS/SATA controller that has an AHCI mode. * At the moment, we can only use the AHCI mode. Let the users know * that for SAS drives they're out of luck. */ if (pdev->vendor == PCI_VENDOR_ID_PROMISE) dev_printk(KERN_INFO, &pdev->dev, "PDC42819 " "can only drive SATA devices with this driver\n"); /* acquire resources */ rc = pcim_enable_device(pdev); if (rc) return rc; /* AHCI controllers often implement SFF compatible interface. * Grab all PCI BARs just in case. */ rc = pcim_iomap_regions_request_all(pdev, 1 << AHCI_PCI_BAR, DRV_NAME); if (rc == -EBUSY) pcim_pin_device(pdev); if (rc) return rc; if (pdev->vendor == PCI_VENDOR_ID_INTEL && (pdev->device == 0x2652 || pdev->device == 0x2653)) { u8 map; /* ICH6s share the same PCI ID for both piix and ahci * modes. Enabling ahci mode while MAP indicates * combined mode is a bad idea. Yield to ata_piix. */ pci_read_config_byte(pdev, ICH_MAP, &map); if (map & 0x3) { dev_printk(KERN_INFO, &pdev->dev, "controller is in " "combined mode, can't enable AHCI mode\n"); return -ENODEV; } } hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL); if (!hpriv) return -ENOMEM; hpriv->flags |= (unsigned long)pi.private_data; /* MCP65 revision A1 and A2 can't do MSI */ if (board_id == board_ahci_mcp65 && (pdev->revision == 0xa1 || pdev->revision == 0xa2)) hpriv->flags |= AHCI_HFLAG_NO_MSI; /* SB800 does NOT need the workaround to ignore SERR_INTERNAL */ if (board_id == board_ahci_sb700 && pdev->revision >= 0x40) hpriv->flags &= ~AHCI_HFLAG_IGN_SERR_INTERNAL; /* only some SB600s can do 64bit DMA */ if (ahci_sb600_enable_64bit(pdev)) hpriv->flags &= ~AHCI_HFLAG_32BIT_ONLY; if ((hpriv->flags & AHCI_HFLAG_NO_MSI) || pci_enable_msi(pdev)) pci_intx(pdev, 1); hpriv->mmio = pcim_iomap_table(pdev)[AHCI_PCI_BAR]; /* save initial config */ ahci_pci_save_initial_config(pdev, hpriv); /* prepare host */ if (hpriv->cap & HOST_CAP_NCQ) { pi.flags |= ATA_FLAG_NCQ; /* * Auto-activate optimization is supposed to be * supported on all AHCI controllers indicating NCQ * capability, but it seems to be broken on some * chipsets including NVIDIAs. */ if (!(hpriv->flags & AHCI_HFLAG_NO_FPDMA_AA)) pi.flags |= ATA_FLAG_FPDMA_AA; } if (hpriv->cap & HOST_CAP_PMP) pi.flags |= ATA_FLAG_PMP; ahci_set_em_messages(hpriv, &pi); if (ahci_broken_system_poweroff(pdev)) { pi.flags |= ATA_FLAG_NO_POWEROFF_SPINDOWN; dev_info(&pdev->dev, "quirky BIOS, skipping spindown on poweroff\n"); } if (ahci_broken_suspend(pdev)) { hpriv->flags |= AHCI_HFLAG_NO_SUSPEND; dev_printk(KERN_WARNING, &pdev->dev, "BIOS update required for suspend/resume\n"); } if (ahci_broken_online(pdev)) { hpriv->flags |= AHCI_HFLAG_SRST_TOUT_IS_OFFLINE; dev_info(&pdev->dev, "online status unreliable, applying workaround\n"); } /* CAP.NP sometimes indicate the index of the last enabled * port, at other times, that of the last possible port, so * determining the maximum port number requires looking at * both CAP.NP and port_map. */ n_ports = max(ahci_nr_ports(hpriv->cap), fls(hpriv->port_map)); host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports); if (!host) return -ENOMEM; host->private_data = hpriv; if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss) host->flags |= ATA_HOST_PARALLEL_SCAN; else printk(KERN_INFO "ahci: SSS flag set, parallel bus scan disabled\n"); if (pi.flags & ATA_FLAG_EM) ahci_reset_em(host); for (i = 0; i < host->n_ports; i++) { struct ata_port *ap = host->ports[i]; ata_port_pbar_desc(ap, AHCI_PCI_BAR, -1, "abar"); ata_port_pbar_desc(ap, AHCI_PCI_BAR, 0x100 + ap->port_no * 0x80, "port"); /* set enclosure management message type */ if (ap->flags & ATA_FLAG_EM) ap->em_message_type = hpriv->em_msg_type; /* disabled/not-implemented port */ if (!(hpriv->port_map & (1 << i))) ap->ops = &ata_dummy_port_ops; } /* apply workaround for ASUS P5W DH Deluxe mainboard */ ahci_p5wdh_workaround(host); /* apply gtf filter quirk */ ahci_gtf_filter_workaround(host); /* initialize adapter */ rc = ahci_configure_dma_masks(pdev, hpriv->cap & HOST_CAP_64); if (rc) return rc; rc = ahci_pci_reset_controller(host); if (rc) return rc; ahci_pci_init_controller(host); ahci_pci_print_info(host); pci_set_master(pdev); return ata_host_activate(host, pdev->irq, ahci_interrupt, IRQF_SHARED, &ahci_sht); } static int __init ahci_init(void) { return pci_register_driver(&ahci_pci_driver); } static void __exit ahci_exit(void) { pci_unregister_driver(&ahci_pci_driver); } MODULE_AUTHOR("Jeff Garzik"); MODULE_DESCRIPTION("AHCI SATA low-level driver"); MODULE_LICENSE("GPL"); MODULE_DEVICE_TABLE(pci, ahci_pci_tbl); MODULE_VERSION(DRV_VERSION); module_init(ahci_init); module_exit(ahci_exit);