Documentation/kernel-parameters.txt
- ide=nodma is no longer valid.
drivers/ide/Kconfig
- The module is ide-core.ko not ide.
drivers/ide/ide.c
- It took me a while to figure out what the arguments %d.%d:%d to nodma
module parameter ment, so I added a comment to each.
- Added a comment to each of the sscanf lines.
- There is a bug, if j is 0 it would previously clear all the other bits
except the current device, changed in three different places.
mask &= (1 << i) should be mask &= ~(1 << i).
Signed-off-by: David Fries <david@fries.net>
[bart: s/disk/device/ in ide.c, beautify patch description]
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
icn= [HW,ISDN]
Format: <io>[,<membase>[,<icn_id>[,<icn_id2>]]]
icn= [HW,ISDN]
Format: <io>[,<membase>[,<icn_id>[,<icn_id2>]]]
- ide= [HW] (E)IDE subsystem
- Format: ide=nodma or ide=doubler
+ ide-core.nodma= [HW] (E)IDE subsystem
+ Format: =0.0 to prevent dma on hda, =0.1 hdb =1.0 hdc
+ .vlb_clock .pci_clock .noflush .noprobe .nowerr .cdrom
+ .chs .ignore_cable are additional options
See Documentation/ide/ide.txt.
idebus= [HW] (E)IDE subsystem - VLB/PCI bus speed
See Documentation/ide/ide.txt.
idebus= [HW] (E)IDE subsystem - VLB/PCI bus speed
SMART parameters from disk drives.
To compile this driver as a module, choose M here: the
SMART parameters from disk drives.
To compile this driver as a module, choose M here: the
- module will be called ide.
+ module will be called ide-core.ko.
For further information, please read <file:Documentation/ide/ide.txt>.
For further information, please read <file:Documentation/ide/ide.txt>.
int a, b, i, j = 1;
unsigned int *dev_param_mask = (unsigned int *)kp->arg;
int a, b, i, j = 1;
unsigned int *dev_param_mask = (unsigned int *)kp->arg;
+ /* controller . device (0 or 1) [ : 1 (set) | 0 (clear) ] */
if (sscanf(s, "%d.%d:%d", &a, &b, &j) != 3 &&
sscanf(s, "%d.%d", &a, &b) != 2)
return -EINVAL;
if (sscanf(s, "%d.%d:%d", &a, &b, &j) != 3 &&
sscanf(s, "%d.%d", &a, &b) != 2)
return -EINVAL;
if (j)
*dev_param_mask |= (1 << i);
else
if (j)
*dev_param_mask |= (1 << i);
else
- *dev_param_mask &= (1 << i);
+ *dev_param_mask &= ~(1 << i);
{
int a, b, c = 0, h = 0, s = 0, i, j = 1;
{
int a, b, c = 0, h = 0, s = 0, i, j = 1;
+ /* controller . device (0 or 1) : Cylinders , Heads , Sectors */
+ /* controller . device (0 or 1) : 1 (use CHS) | 0 (ignore CHS) */
if (sscanf(str, "%d.%d:%d,%d,%d", &a, &b, &c, &h, &s) != 5 &&
sscanf(str, "%d.%d:%d", &a, &b, &j) != 3)
return -EINVAL;
if (sscanf(str, "%d.%d:%d,%d,%d", &a, &b, &c, &h, &s) != 5 &&
sscanf(str, "%d.%d:%d", &a, &b, &j) != 3)
return -EINVAL;
if (j)
ide_disks |= (1 << i);
else
if (j)
ide_disks |= (1 << i);
else
+ ide_disks &= ~(1 << i);
ide_disks_chs[i].cyl = c;
ide_disks_chs[i].head = h;
ide_disks_chs[i].cyl = c;
ide_disks_chs[i].head = h;
+ /* controller (ignore) */
+ /* controller : 1 (ignore) | 0 (use) */
if (sscanf(s, "%d:%d", &i, &j) != 2 && sscanf(s, "%d", &i) != 1)
return -EINVAL;
if (sscanf(s, "%d:%d", &i, &j) != 2 && sscanf(s, "%d", &i) != 1)
return -EINVAL;
if (j)
ide_ignore_cable |= (1 << i);
else
if (j)
ide_ignore_cable |= (1 << i);
else
- ide_ignore_cable &= (1 << i);
+ ide_ignore_cable &= ~(1 << i);