Release 4.7 drivers/ide/rz1000.c
/*
* Copyright (C) 1995-1998 Linus Torvalds & author (see below)
*/
/*
* Principal Author: mlord@pobox.com (Mark Lord)
*
* See linux/MAINTAINERS for address of current maintainer.
*
* This file provides support for disabling the buggy read-ahead
* mode of the RZ1000 IDE chipset, commonly used on Intel motherboards.
*
* Dunno if this fixes both ports, or only the primary port (?).
*/
#include <linux/types.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/ide.h>
#include <linux/init.h>
#define DRV_NAME "rz1000"
static int rz1000_disable_readahead(struct pci_dev *dev)
{
u16 reg;
if (!pci_read_config_word (dev, 0x40, ®) &&
!pci_write_config_word(dev, 0x40, reg & 0xdfff)) {
printk(KERN_INFO "%s: disabled chipset read-ahead "
"(buggy RZ1000/RZ1001)\n", pci_name(dev));
return 0;
} else {
printk(KERN_INFO "%s: serialized, disabled unmasking "
"(buggy RZ1000/RZ1001)\n", pci_name(dev));
return 1;
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| jens axboe | jens axboe | 52 | 70.27% | 2 | 40.00% |
| bartlomiej zolnierkiewicz | bartlomiej zolnierkiewicz | 20 | 27.03% | 2 | 40.00% |
| alan cox | alan cox | 2 | 2.70% | 1 | 20.00% |
| Total | 74 | 100.00% | 5 | 100.00% |
static const struct ide_port_info rz1000_chipset = {
.name = DRV_NAME,
.host_flags = IDE_HFLAG_NO_DMA,
};
static int rz1000_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
struct ide_port_info d = rz1000_chipset;
int rc;
rc = pci_enable_device(dev);
if (rc)
return rc;
if (rz1000_disable_readahead(dev)) {
d.host_flags |= IDE_HFLAG_SERIALIZE;
d.host_flags |= IDE_HFLAG_NO_UNMASK_IRQS;
}
return ide_pci_init_one(dev, &d, NULL);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| bartlomiej zolnierkiewicz | bartlomiej zolnierkiewicz | 52 | 72.22% | 4 | 57.14% |
| jens axboe | jens axboe | 20 | 27.78% | 3 | 42.86% |
| Total | 72 | 100.00% | 7 | 100.00% |
static void rz1000_remove(struct pci_dev *dev)
{
ide_pci_remove(dev);
pci_disable_device(dev);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| bartlomiej zolnierkiewicz | bartlomiej zolnierkiewicz | 21 | 100.00% | 1 | 100.00% |
| Total | 21 | 100.00% | 1 | 100.00% |
static const struct pci_device_id rz1000_pci_tbl[] = {
{ PCI_VDEVICE(PCTECH, PCI_DEVICE_ID_PCTECH_RZ1000), 0 },
{ PCI_VDEVICE(PCTECH, PCI_DEVICE_ID_PCTECH_RZ1001), 0 },
{ 0, },
};
MODULE_DEVICE_TABLE(pci, rz1000_pci_tbl);
static struct pci_driver rz1000_pci_driver = {
.name = "RZ1000_IDE",
.id_table = rz1000_pci_tbl,
.probe = rz1000_init_one,
.remove = rz1000_remove,
};
static int __init rz1000_ide_init(void)
{
return ide_pci_register_driver(&rz1000_pci_driver);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| jens axboe | jens axboe | 14 | 87.50% | 3 | 60.00% |
| bartlomiej zolnierkiewicz | bartlomiej zolnierkiewicz | 2 | 12.50% | 2 | 40.00% |
| Total | 16 | 100.00% | 5 | 100.00% |
static void __exit rz1000_ide_exit(void)
{
pci_unregister_driver(&rz1000_pci_driver);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| bartlomiej zolnierkiewicz | bartlomiej zolnierkiewicz | 15 | 100.00% | 2 | 100.00% |
| Total | 15 | 100.00% | 2 | 100.00% |
module_init(rz1000_ide_init);
module_exit(rz1000_ide_exit);
MODULE_AUTHOR("Andre Hedrick");
MODULE_DESCRIPTION("PCI driver module for RZ1000 IDE");
MODULE_LICENSE("GPL");
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| bartlomiej zolnierkiewicz | bartlomiej zolnierkiewicz | 163 | 48.80% | 17 | 73.91% |
| jens axboe | jens axboe | 162 | 48.50% | 3 | 13.04% |
| luca tettamanti | luca tettamanti | 6 | 1.80% | 1 | 4.35% |
| alan cox | alan cox | 2 | 0.60% | 1 | 4.35% |
| deepak saxena | deepak saxena | 1 | 0.30% | 1 | 4.35% |
| greg kroah-hartman | greg kroah-hartman | | 0.00% | 0 | 0.00% |
| Total | 334 | 100.00% | 23 | 100.00% |
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