/* $Id: scsi.c $ */ /** @file * SCSI host adapter driver to boot from SCSI disks */ /* * Copyright (C) 2004-2019 Oracle Corporation * * This file is part of VirtualBox Open Source Edition (OSE), as * available from http://www.virtualbox.org. This file is free software; * you can redistribute it and/or modify it under the terms of the GNU * General Public License (GPL) as published by the Free Software * Foundation, in version 2 as it comes in the "COPYING" file of the * VirtualBox OSE distribution. VirtualBox OSE is distributed in the * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. */ #include #include #include "biosint.h" #include "inlines.h" #include "pciutil.h" #include "ebda.h" #if DEBUG_SCSI # define DBG_SCSI(...) BX_INFO(__VA_ARGS__) #else # define DBG_SCSI(...) #endif #define VBSCSI_BUSY (1 << 0) #define VBSCSI_ERROR (1 << 1) /* The I/O port of the BusLogic SCSI adapter. */ #define BUSLOGIC_BIOS_IO_PORT 0x430 /* The I/O port of the LsiLogic SCSI adapter. */ #define LSILOGIC_BIOS_IO_PORT 0x434 /* The I/O port of the LsiLogic SAS adapter. */ #define LSILOGIC_SAS_BIOS_IO_PORT 0x438 #define VBSCSI_REGISTER_STATUS 0 #define VBSCSI_REGISTER_COMMAND 0 #define VBSCSI_REGISTER_DATA_IN 1 #define VBSCSI_REGISTER_IDENTIFY 2 #define VBSCSI_REGISTER_RESET 3 #define VBSCSI_REGISTER_DEVSTAT 3 #define VBSCSI_MAX_DEVICES 16 /* Maximum number of devices a SCSI device can have. */ /* Command opcodes. */ #define SCSI_SERVICE_ACT 0x9e #define SCSI_INQUIRY 0x12 #define SCSI_READ_CAP_10 0x25 #define SCSI_READ_10 0x28 #define SCSI_WRITE_10 0x2a #define SCSI_READ_CAP_16 0x10 /* Not an opcode by itself, sub-action for the "Service Action" */ #define SCSI_READ_16 0x88 #define SCSI_WRITE_16 0x8a /* Data transfer direction. */ #define SCSI_TXDIR_FROM_DEVICE 0 #define SCSI_TXDIR_TO_DEVICE 1 #pragma pack(1) /* READ_10/WRITE_10 CDB layout. */ typedef struct { uint16_t command; /* Command. */ uint32_t lba; /* LBA, MSB first! */ uint8_t pad1; /* Unused. */ uint16_t nsect; /* Sector count, MSB first! */ uint8_t pad2; /* Unused. */ } cdb_rw10; /* READ_16/WRITE_16 CDB layout. */ typedef struct { uint16_t command; /* Command. */ uint64_t lba; /* LBA, MSB first! */ uint32_t nsect32; /* Sector count, MSB first! */ uint8_t pad1; /* Unused. */ uint8_t pad2; /* Unused. */ } cdb_rw16; #pragma pack() ct_assert(sizeof(cdb_rw10) == 10); ct_assert(sizeof(cdb_rw16) == 16); void insb_discard(unsigned nbytes, unsigned port); #pragma aux insb_discard = \ ".286" \ "again:" \ "in al,dx" \ "loop again" \ parm [cx] [dx] modify exact [cx ax] nomemory; int scsi_cmd_data_in(uint16_t io_base, uint8_t target_id, uint8_t __far *aCDB, uint8_t cbCDB, uint8_t __far *buffer, uint32_t length) { /* Check that the adapter is ready. */ uint8_t status, sizes; uint16_t i; do status = inb(io_base + VBSCSI_REGISTER_STATUS); while (status & VBSCSI_BUSY); sizes = ((length >> 12) & 0xF0) | ((cbCDB == 16) ? 0 : cbCDB); outb(io_base + VBSCSI_REGISTER_COMMAND, target_id); /* Write the target ID. */ outb(io_base + VBSCSI_REGISTER_COMMAND, SCSI_TXDIR_FROM_DEVICE); /* Write the transfer direction. */ outb(io_base + VBSCSI_REGISTER_COMMAND, sizes); /* Write CDB size and top bufsize bits. */ outb(io_base + VBSCSI_REGISTER_COMMAND, length); /* Write the buffer size. */ outb(io_base + VBSCSI_REGISTER_COMMAND, (length >> 8)); for (i = 0; i < cbCDB; i++) /* Write the CDB. */ outb(io_base + VBSCSI_REGISTER_COMMAND, aCDB[i]); /* Now wait for the command to complete. */ do status = inb(io_base + VBSCSI_REGISTER_STATUS); while (status & VBSCSI_BUSY); /* If any error occurred, inform the caller and don't bother reading the data. */ if (status & VBSCSI_ERROR) { outb(io_base + VBSCSI_REGISTER_RESET, 0); status = inb(io_base + VBSCSI_REGISTER_DEVSTAT); DBG_SCSI("%s: read failed, device status %02X\n", __func__, status); return 4; /* Sector not found */ } /* Read in the data. The transfer length may be exactly 64K or more, * which needs a bit of care when we're using 16-bit 'rep ins'. */ while (length > 32768) { DBG_SCSI("%s: reading 32K to %X:%X\n", __func__, FP_SEG(buffer), FP_OFF(buffer)); rep_insb(buffer, 32768, io_base + VBSCSI_REGISTER_DATA_IN); length -= 32768; buffer = (FP_SEG(buffer) + (32768 >> 4)) :> FP_OFF(buffer); } DBG_SCSI("%s: reading %ld bytes to %X:%X\n", __func__, length, FP_SEG(buffer), FP_OFF(buffer)); rep_insb(buffer, length, io_base + VBSCSI_REGISTER_DATA_IN); return 0; } int scsi_cmd_data_out(uint16_t io_base, uint8_t target_id, uint8_t __far *aCDB, uint8_t cbCDB, uint8_t __far *buffer, uint32_t length) { /* Check that the adapter is ready. */ uint8_t status, sizes; uint16_t i; do status = inb(io_base + VBSCSI_REGISTER_STATUS); while (status & VBSCSI_BUSY); sizes = ((length >> 12) & 0xF0) | ((cbCDB == 16) ? 0 : cbCDB); outb(io_base + VBSCSI_REGISTER_COMMAND, target_id); /* Write the target ID. */ outb(io_base + VBSCSI_REGISTER_COMMAND, SCSI_TXDIR_TO_DEVICE); /* Write the transfer direction. */ outb(io_base + VBSCSI_REGISTER_COMMAND, sizes); /* Write CDB size and top bufsize bits. */ outb(io_base + VBSCSI_REGISTER_COMMAND, length); /* Write the buffer size. */ outb(io_base + VBSCSI_REGISTER_COMMAND, (length >> 8)); for (i = 0; i < cbCDB; i++) /* Write the CDB. */ outb(io_base + VBSCSI_REGISTER_COMMAND, aCDB[i]); /* Write out the data. The transfer length may be exactly 64K or more, * which needs a bit of care when we're using 16-bit 'rep outs'. */ while (length > 32768) { DBG_SCSI("%s: writing 32K from %X:%X\n", __func__, FP_SEG(buffer), FP_OFF(buffer)); rep_outsb(buffer, 32768, io_base + VBSCSI_REGISTER_DATA_IN); length -= 32768; buffer = (FP_SEG(buffer) + (32768 >> 4)) :> FP_OFF(buffer); } DBG_SCSI("%s: writing %ld bytes from %X:%X\n", __func__, length, FP_SEG(buffer), FP_OFF(buffer)); rep_outsb(buffer, length, io_base + VBSCSI_REGISTER_DATA_IN); /* Now wait for the command to complete. */ do status = inb(io_base + VBSCSI_REGISTER_STATUS); while (status & VBSCSI_BUSY); /* If any error occurred, inform the caller. */ if (status & VBSCSI_ERROR) { outb(io_base + VBSCSI_REGISTER_RESET, 0); status = inb(io_base + VBSCSI_REGISTER_DEVSTAT); DBG_SCSI("%s: write failed, device status %02X\n", __func__, status); return 4; /* Sector not found */ } return 0; } /** * Read sectors from an attached SCSI device. * * @returns status code. * @param bios_dsk Pointer to disk request packet (in the * EBDA). */ int scsi_read_sectors(bio_dsk_t __far *bios_dsk) { uint8_t rc; cdb_rw16 cdb; uint32_t count; uint16_t io_base; uint8_t target_id; uint8_t device_id; device_id = VBOX_GET_SCSI_DEVICE(bios_dsk->drqp.dev_id); if (device_id > BX_MAX_SCSI_DEVICES) BX_PANIC("%s: device_id out of range %d\n", __func__, device_id); count = bios_dsk->drqp.nsect; /* Prepare a CDB. */ cdb.command = SCSI_READ_16; cdb.lba = swap_64(bios_dsk->drqp.lba); cdb.pad1 = 0; cdb.nsect32 = swap_32(count); cdb.pad2 = 0; io_base = bios_dsk->scsidev[device_id].io_base; target_id = bios_dsk->scsidev[device_id].target_id; DBG_SCSI("%s: reading %u sectors, device %d, target %d\n", __func__, count, device_id, bios_dsk->scsidev[device_id].target_id); rc = scsi_cmd_data_in(io_base, target_id, (void __far *)&cdb, 16, bios_dsk->drqp.buffer, (count * 512L)); if (!rc) { bios_dsk->drqp.trsfsectors = count; bios_dsk->drqp.trsfbytes = count * 512L; } DBG_SCSI("%s: transferred %u sectors\n", __func__, bios_dsk->drqp.nsect); return rc; } /** * Write sectors to an attached SCSI device. * * @returns status code. * @param bios_dsk Pointer to disk request packet (in the * EBDA). */ int scsi_write_sectors(bio_dsk_t __far *bios_dsk) { uint8_t rc; cdb_rw16 cdb; uint32_t count; uint16_t io_base; uint8_t target_id; uint8_t device_id; device_id = VBOX_GET_SCSI_DEVICE(bios_dsk->drqp.dev_id); if (device_id > BX_MAX_SCSI_DEVICES) BX_PANIC("%s: device_id out of range %d\n", __func__, device_id); count = bios_dsk->drqp.nsect; /* Prepare a CDB. */ cdb.command = SCSI_WRITE_16; cdb.lba = swap_64(bios_dsk->drqp.lba); cdb.pad1 = 0; cdb.nsect32 = swap_32(count); cdb.pad2 = 0; io_base = bios_dsk->scsidev[device_id].io_base; target_id = bios_dsk->scsidev[device_id].target_id; DBG_SCSI("%s: writing %u sectors, device %d, target %d\n", __func__, count, device_id, bios_dsk->scsidev[device_id].target_id); rc = scsi_cmd_data_out(io_base, target_id, (void __far *)&cdb, 16, bios_dsk->drqp.buffer, (count * 512L)); if (!rc) { bios_dsk->drqp.trsfsectors = count; bios_dsk->drqp.trsfbytes = (count * 512L); } DBG_SCSI("%s: transferred %u sectors\n", __func__, bios_dsk->drqp.nsect); return rc; } /// @todo move #define ATA_DATA_NO 0x00 #define ATA_DATA_IN 0x01 #define ATA_DATA_OUT 0x02 /** * Perform a "packet style" read with supplied CDB. * * @returns status code. * @param device_id ID of the device to access. * @param cmdlen Length of the CDB. * @param cmdbuf The CDB buffer. * @param before How much to skip before reading into the provided data buffer. * @param length How much to transfer. * @param inout Read/Write direction indicator. * @param buffer Data buffer to store the data from the device in. */ uint16_t scsi_cmd_packet(uint16_t device_id, uint8_t cmdlen, char __far *cmdbuf, uint16_t before, uint32_t length, uint8_t inout, char __far *buffer) { bio_dsk_t __far *bios_dsk = read_word(0x0040, 0x000E) :> &EbdaData->bdisk; uint32_t read_len; uint8_t status, sizes; uint16_t i; uint16_t io_base; uint8_t target_id; /* Data out is currently not supported. */ if (inout == ATA_DATA_OUT) { BX_INFO("%s: DATA_OUT not supported yet\n", __func__); return 1; } /* Convert to SCSI specific device number. */ device_id = VBOX_GET_SCSI_DEVICE(device_id); DBG_SCSI("%s: reading %lu bytes, skip %u/%u, device %d, target %d\n", __func__, length, bios_dsk->drqp.skip_b, bios_dsk->drqp.skip_a, device_id, bios_dsk->scsidev[device_id].target_id); DBG_SCSI("%s: reading %u %u-byte sectors\n", __func__, bios_dsk->drqp.nsect, bios_dsk->drqp.sect_sz); cmdlen -= 2; /* ATAPI uses 12-byte command packets for a READ 10. */ io_base = bios_dsk->scsidev[device_id].io_base; target_id = bios_dsk->scsidev[device_id].target_id; /* Wait until the adapter is ready. */ do status = inb(io_base + VBSCSI_REGISTER_STATUS); while (status & VBSCSI_BUSY); /* On the SCSI level, we have to transfer whole sectors. */ /* NB: With proper residual length support, this should not be necessary; we should * be able to avoid transferring the 'after' part of the sector. */ read_len = length + before + bios_dsk->drqp.skip_a; sizes = (((read_len) >> 12) & 0xF0) | cmdlen; outb(io_base + VBSCSI_REGISTER_COMMAND, target_id); /* Write the target ID. */ outb(io_base + VBSCSI_REGISTER_COMMAND, SCSI_TXDIR_FROM_DEVICE); /* Write the transfer direction. */ outb(io_base + VBSCSI_REGISTER_COMMAND, sizes); /* Write the CDB size. */ outb(io_base + VBSCSI_REGISTER_COMMAND, read_len); /* Write the buffer size. */ outb(io_base + VBSCSI_REGISTER_COMMAND, (read_len) >> 8); for (i = 0; i < cmdlen; i++) /* Write the CDB. */ outb(io_base + VBSCSI_REGISTER_COMMAND, cmdbuf[i]); /* Now wait for the command to complete. */ do status = inb(io_base + VBSCSI_REGISTER_STATUS); while (status & VBSCSI_BUSY); /* If any error occurred, inform the caller and don't bother reading the data. */ if (status & VBSCSI_ERROR) { outb(io_base + VBSCSI_REGISTER_RESET, 0); status = inb(io_base + VBSCSI_REGISTER_DEVSTAT); DBG_SCSI("%s: read failed, device status %02X\n", __func__, status); return 3; } /* Transfer the data read from the device. */ if (before) /* If necessary, throw away data which needs to be skipped. */ insb_discard(before, io_base + VBSCSI_REGISTER_DATA_IN); bios_dsk->drqp.trsfbytes = length; /* The requested length may be exactly 64K or more, which needs * a bit of care when we're using 16-bit 'rep ins'. */ while (length > 32768) { DBG_SCSI("%s: reading 32K to %X:%X\n", __func__, FP_SEG(buffer), FP_OFF(buffer)); rep_insb(buffer, 32768, io_base + VBSCSI_REGISTER_DATA_IN); length -= 32768; buffer = (FP_SEG(buffer) + (32768 >> 4)) :> FP_OFF(buffer); } DBG_SCSI("%s: reading %ld bytes to %X:%X\n", __func__, length, FP_SEG(buffer), FP_OFF(buffer)); rep_insb(buffer, length, io_base + VBSCSI_REGISTER_DATA_IN); if (bios_dsk->drqp.skip_a) /* If necessary, throw away more data. */ insb_discard(bios_dsk->drqp.skip_a, io_base + VBSCSI_REGISTER_DATA_IN); return 0; } /** * Enumerate attached devices. * * @returns nothing. * @param io_base The I/O base port of the controller. */ void scsi_enumerate_attached_devices(uint16_t io_base) { int i; uint8_t buffer[0x0200]; bio_dsk_t __far *bios_dsk; bios_dsk = read_word(0x0040, 0x000E) :> &EbdaData->bdisk; /* Go through target devices. */ for (i = 0; i < VBSCSI_MAX_DEVICES; i++) { uint8_t rc; uint8_t aCDB[16]; uint8_t hd_index, devcount_scsi; aCDB[0] = SCSI_INQUIRY; aCDB[1] = 0; aCDB[2] = 0; aCDB[3] = 0; aCDB[4] = 5; /* Allocation length. */ aCDB[5] = 0; rc = scsi_cmd_data_in(io_base, i, aCDB, 6, buffer, 5); if (rc != 0) BX_PANIC("%s: SCSI_INQUIRY failed\n", __func__); devcount_scsi = bios_dsk->scsi_devcount; /* Check the attached device. */ if ( ((buffer[0] & 0xe0) == 0) && ((buffer[0] & 0x1f) == 0x00)) { DBG_SCSI("%s: Disk detected at %d\n", __func__, i); /* We add the disk only if the maximum is not reached yet. */ if (devcount_scsi < BX_MAX_SCSI_DEVICES) { uint64_t sectors, t; uint32_t sector_size, cylinders; uint16_t heads, sectors_per_track; uint8_t hdcount; uint8_t cmos_base; /* Issue a read capacity command now. */ _fmemset(aCDB, 0, sizeof(aCDB)); aCDB[0] = SCSI_SERVICE_ACT; aCDB[1] = SCSI_READ_CAP_16; aCDB[13] = 32; /* Allocation length. */ rc = scsi_cmd_data_in(io_base, i, aCDB, 16, buffer, 32); if (rc != 0) BX_PANIC("%s: SCSI_READ_CAPACITY failed\n", __func__); /* The value returned is the last addressable LBA, not * the size, which what "+ 1" is for. */ sectors = swap_64(*(uint64_t *)buffer) + 1; sector_size = ((uint32_t)buffer[8] << 24) | ((uint32_t)buffer[9] << 16) | ((uint32_t)buffer[10] << 8) | ((uint32_t)buffer[11]); /* We only support the disk if sector size is 512 bytes. */ if (sector_size != 512) { /* Leave a log entry. */ BX_INFO("Disk %d has an unsupported sector size of %u\n", i, sector_size); continue; } /* Get logical CHS geometry. */ switch (devcount_scsi) { case 0: cmos_base = 0x90; break; case 1: cmos_base = 0x98; break; case 2: cmos_base = 0xA0; break; case 3: cmos_base = 0xA8; break; default: cmos_base = 0; } if (cmos_base && inb_cmos(cmos_base + 7)) { /* If provided, grab the logical geometry from CMOS. */ cylinders = inb_cmos(cmos_base + 0) + (inb_cmos(cmos_base + 1) << 8); heads = inb_cmos(cmos_base + 2); sectors_per_track = inb_cmos(cmos_base + 7); } else { /* Calculate default logical geometry. NB: Very different * from default ATA/SATA logical geometry! */ if (sectors >= (uint32_t)4 * 1024 * 1024) { heads = 255; sectors_per_track = 63; /* Approximate x / (255 * 63) using shifts */ t = (sectors >> 6) + (sectors >> 12); cylinders = (t >> 8) + (t >> 16); } else if (sectors >= (uint32_t)2 * 1024 * 1024) { heads = 128; sectors_per_track = 32; cylinders = sectors >> 12; } else { heads = 64; sectors_per_track = 32; cylinders = sectors >> 11; } } /* Calculate index into the generic disk table. */ hd_index = devcount_scsi + BX_MAX_ATA_DEVICES; bios_dsk->scsidev[devcount_scsi].io_base = io_base; bios_dsk->scsidev[devcount_scsi].target_id = i; bios_dsk->devices[hd_index].type = DSK_TYPE_SCSI; bios_dsk->devices[hd_index].device = DSK_DEVICE_HD; bios_dsk->devices[hd_index].removable = 0; bios_dsk->devices[hd_index].lock = 0; bios_dsk->devices[hd_index].blksize = sector_size; bios_dsk->devices[hd_index].translation = GEO_TRANSLATION_LBA; /* Write LCHS/PCHS values. */ bios_dsk->devices[hd_index].lchs.heads = heads; bios_dsk->devices[hd_index].lchs.spt = sectors_per_track; bios_dsk->devices[hd_index].pchs.heads = heads; bios_dsk->devices[hd_index].pchs.spt = sectors_per_track; if (cylinders > 1024) { bios_dsk->devices[hd_index].lchs.cylinders = 1024; bios_dsk->devices[hd_index].pchs.cylinders = 1024; } else { bios_dsk->devices[hd_index].lchs.cylinders = (uint16_t)cylinders; bios_dsk->devices[hd_index].pchs.cylinders = (uint16_t)cylinders; } BX_INFO("SCSI %d-ID#%d: LCHS=%lu/%u/%u 0x%llx sectors\n", devcount_scsi, i, (uint32_t)cylinders, heads, sectors_per_track, sectors); bios_dsk->devices[hd_index].sectors = sectors; /* Store the id of the disk in the ata hdidmap. */ hdcount = bios_dsk->hdcount; bios_dsk->hdidmap[hdcount] = devcount_scsi + BX_MAX_ATA_DEVICES; hdcount++; bios_dsk->hdcount = hdcount; /* Update hdcount in the BDA. */ hdcount = read_byte(0x40, 0x75); hdcount++; write_byte(0x40, 0x75, hdcount); devcount_scsi++; } else { /* We reached the maximum of SCSI disks we can boot from. We can quit detecting. */ break; } } else if ( ((buffer[0] & 0xe0) == 0) && ((buffer[0] & 0x1f) == 0x05)) { uint8_t cdcount; uint8_t removable; BX_INFO("SCSI %d-ID#%d: CD/DVD-ROM\n", devcount_scsi, i); /* Calculate index into the generic device table. */ hd_index = devcount_scsi + BX_MAX_ATA_DEVICES; removable = buffer[1] & 0x80 ? 1 : 0; bios_dsk->scsidev[devcount_scsi].io_base = io_base; bios_dsk->scsidev[devcount_scsi].target_id = i; bios_dsk->devices[hd_index].type = DSK_TYPE_SCSI; bios_dsk->devices[hd_index].device = DSK_DEVICE_CDROM; bios_dsk->devices[hd_index].removable = removable; bios_dsk->devices[hd_index].blksize = 2048; bios_dsk->devices[hd_index].translation = GEO_TRANSLATION_NONE; /* Store the ID of the device in the BIOS cdidmap. */ cdcount = bios_dsk->cdcount; bios_dsk->cdidmap[cdcount] = devcount_scsi + BX_MAX_ATA_DEVICES; cdcount++; bios_dsk->cdcount = cdcount; devcount_scsi++; } else DBG_SCSI("%s: No supported device detected at %d\n", __func__, i); bios_dsk->scsi_devcount = devcount_scsi; } } void scsi_pci_init(uint16_t vendor_id, uint16_t device_id) { uint16_t bus_dev_fn; bus_dev_fn = pci_find_device(vendor_id, device_id); if (bus_dev_fn == -1) { DBG_SCSI("%s: Adapter %x:%x not found, how come?!\n", __func__, vendor_id, device_id); return; } DBG_SCSI("%s: Adapter %x:%x found at %x, enabling BM\n", __func__, vendor_id, device_id, bus_dev_fn); /* Enable PCI memory, I/O, bus mastering access in command register. */ pci_write_config_word(bus_dev_fn >> 8, (uint8_t)bus_dev_fn, 4, 0x7); } /** * Init the SCSI driver and detect attached disks. */ void BIOSCALL scsi_init(void) { uint8_t identifier; bio_dsk_t __far *bios_dsk; bios_dsk = read_word(0x0040, 0x000E) :> &EbdaData->bdisk; bios_dsk->scsi_devcount = 0; identifier = 0; /* Detect the BusLogic adapter. */ outb(BUSLOGIC_BIOS_IO_PORT+VBSCSI_REGISTER_IDENTIFY, 0x55); identifier = inb(BUSLOGIC_BIOS_IO_PORT+VBSCSI_REGISTER_IDENTIFY); if (identifier == 0x55) { /* Detected - Enumerate attached devices. */ DBG_SCSI("%s: BusLogic SCSI adapter detected\n", __func__); outb(BUSLOGIC_BIOS_IO_PORT+VBSCSI_REGISTER_RESET, 0); scsi_enumerate_attached_devices(BUSLOGIC_BIOS_IO_PORT); scsi_pci_init(0x104B, 0x1040); } else { DBG_SCSI("%s: BusLogic SCSI adapter not detected\n", __func__); } /* Detect the LSI Logic parallel SCSI adapter. */ outb(LSILOGIC_BIOS_IO_PORT+VBSCSI_REGISTER_IDENTIFY, 0x55); identifier = inb(LSILOGIC_BIOS_IO_PORT+VBSCSI_REGISTER_IDENTIFY); if (identifier == 0x55) { /* Detected - Enumerate attached devices. */ DBG_SCSI("%s: LSI Logic SCSI adapter detected\n", __func__); outb(LSILOGIC_BIOS_IO_PORT+VBSCSI_REGISTER_RESET, 0); scsi_enumerate_attached_devices(LSILOGIC_BIOS_IO_PORT); scsi_pci_init(0x1000, 0x0030); } else { DBG_SCSI("%s: LSI Logic SCSI adapter not detected\n", __func__); } /* Detect the LSI Logic SAS adapter. */ outb(LSILOGIC_SAS_BIOS_IO_PORT+VBSCSI_REGISTER_IDENTIFY, 0x55); identifier = inb(LSILOGIC_SAS_BIOS_IO_PORT+VBSCSI_REGISTER_IDENTIFY); if (identifier == 0x55) { /* Detected - Enumerate attached devices. */ DBG_SCSI("%s: LSI Logic SAS adapter detected\n", __func__); outb(LSILOGIC_SAS_BIOS_IO_PORT+VBSCSI_REGISTER_RESET, 0); scsi_enumerate_attached_devices(LSILOGIC_SAS_BIOS_IO_PORT); scsi_pci_init(0x1000, 0x0054); } else { DBG_SCSI("%s: LSI Logic SAS adapter not detected\n", __func__); } }