On Tue, 12 Feb 2008 13:28:15 -0600
James Bottomley [EMAIL PROTECTED] wrote:
On Tue, 2008-02-12 at 11:07 -0800, Kristen Carlson Accardi wrote:
I understand what you are trying to do - I guess I just doubt the
value you've added by doing this. I think that there's going to be
so much
On Tue, 12 Feb 2008 12:45:35 -0600
James Bottomley [EMAIL PROTECTED] wrote:
On Tue, 2008-02-12 at 10:22 -0800, Kristen Carlson Accardi wrote:
I apologize for taking so long to review this patch. I obviously
agree wholeheartedly with Luben. The problem I ran into while
trying to design
On Mon, 4 Feb 2008 18:01:36 -0800 (PST)
Luben Tuikov [EMAIL PROTECTED] wrote:
--- On Mon, 2/4/08, James Bottomley
[EMAIL PROTECTED] wrote:
The enclosure misc device is really just a
library providing
sysfs
support for physical enclosure devices and their
components.
Who
Add a notifier chain for SCSI asynchronous events. Add a
notifier block for events which should be sent to user
space, and add support for the MEDIA_CHANGE event, which
would be used by a driver when new media has been inserted.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED
On Wed, 15 Aug 2007 03:59:10 -0400
Jeff Garzik [EMAIL PROTECTED] wrote:
Since I wanted to get in Tejun's ata_link changes before this, this will
require a rediff.
But more importantly, as I was going to apply it I noticed another
problem: we need to verify that SiS and NVIDIA both
On Wed, 15 Aug 2007 09:01:49 -0500
James Bottomley [EMAIL PROTECTED] wrote:
On Wed, 2007-08-15 at 04:13 -0400, Jeff Garzik wrote:
Kristen Carlson Accardi wrote:
If a scsi_device supports async notification for media change, then
let user space know this capability exists by creating
On Sat, 11 Aug 2007 16:00:53 +0200
Kay Sievers [EMAIL PROTECTED] wrote:
On 8/8/07, Kristen Carlson Accardi [EMAIL PROTECTED] wrote:
Here is an updated set of patches that implement Asynchronous Notification
support for ATAPI devices. In this version I no longer export the AN
capability
On Wed, 1 Aug 2007 14:16:51 -0700
Kristen Carlson Accardi [EMAIL PROTECTED] wrote:
I was able to duplicate Tejun's problem on an ATAPI device I had here.
this updated patch fixed my problem. These devices are just setting
PhyReady (N) and CommWake (W) in Serror on power state changes
Hello,
Here is an updated set of patches that implement Asynchronous Notification
support for ATAPI devices. In this version I no longer export the AN
capability through genhd, and the uevent is sent by the scsi_device
instead of gendisk. I added a generic SCSI device event mechanism so
that it
Check to see if an ATAPI device supports Asynchronous Notification.
If so, enable it.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/drivers/ata/libata-core.c
===
--- 2.6-git.orig/drivers/ata/libata-core.c
change events occur.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/include/scsi/scsi_device.h
===
--- 2.6-git.orig/include/scsi/scsi_device.h
+++ 2.6-git/include/scsi/scsi_device.h
@@ -46,6 +46,16 @@ enum
If Asynchronous Notification of media change events is supported,
pass that information up to the SCSI layer.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/drivers/ata/libata-scsi.c
===
--- 2.6-git.orig
When we get an SDB FIS with the 'N' bit set, we should send
an event to user space to indicate that there has been a
media change. This will be done via the scsi device.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/drivers/ata/ahci.c
On Wed, 01 Aug 2007 12:24:44 +0900
Tejun Heo [EMAIL PROTECTED] wrote:
It would be *really* great if we can find more about how they do it.
How and when it's enabled and on which systems. Is it possible to find
this out?
No - it's really not a good idea for us to go and ask other OS's how
On Wed, 01 Aug 2007 18:23:21 +0900
Tejun Heo [EMAIL PROTECTED] wrote:
Tejun Heo wrote:
Arjan van de Ven wrote:
They were hardware problems. I don't think any amount of proper
implementation can fix them. I have one DVD RAM somewhere in my pile of
hardware which locks up solidly if any
On Wed, 01 Aug 2007 17:27:39 +0900
Tejun Heo [EMAIL PROTECTED] wrote:
Kristen Carlson Accardi wrote:
snippy
Is it safe to use ALPM on a device which only claims to support DIPM?
Yes - I doubled checked this with the AHCI people - and of course you
have Edvin's testing to prove it does fine
state (PARTIAL) when
idle. Hot plug not allowed.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/drivers/ata/ahci.c
===
--- 2.6-git.orig/drivers/ata/ahci.c
+++ 2.6-git/drivers/ata/ahci.c
Store interrupt value
Use a stored value for which interrupts to enable. Changing this allows
us to selectively turn off certain interrupts later and have them
stay off.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/drivers/ata/ahci.c
On Wed, 01 Aug 2007 12:24:44 +0900
Tejun Heo [EMAIL PROTECTED] wrote:
Kristen Carlson Accardi wrote:
I don't think the interface you're suggesting is a good one. Do you?
I think if it's applicable to SCSI at all it is fine. If it is not, then
I think we need to make do
Hi,
This is an updated series of ALPM patches. I moved all link power management
stuff out of scsi sysfs and just use the shost_addr pointer in the host
template to create the sysfs files. This provides the same interface
as before, without requiring any scsi changes. I also fixed a bug in
the
Use a stored value for which interrupts to enable. Changing this allows
us to selectively turn off certain interrupts later and have them
stay off.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/drivers/ata/ahci.c
and intialized. Drivers should also define
disable_pm, which will turn off link power management, but
not change link power management policy.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/drivers/ata/libata-scsi.c
idle. Hot plug not allowed.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/drivers/ata/ahci.c
===
--- 2.6-git.orig/drivers/ata/ahci.c
+++ 2.6-git/drivers/ata/ahci.c
@@ -48,6 +48,9 @@
#define DRV_NAME
On Tue, 31 Jul 2007 23:45:25 +0900
Tejun Heo [EMAIL PROTECTED] wrote:
Anyways, I don't really think this attribute belongs to SCSI sysfs
hierarchy. There currently isn't any alternative but sysfs is part of
userland visible interface and putting something into SCSI sysfs
hierarchy just
On Tue, 31 Jul 2007 15:27:34 +0900
Tejun Heo [EMAIL PROTECTED] wrote:
Jeff Garzik wrote:
Any chance the SCSI peeps could ACK this, and then let me include it in
the ALPM patchset in the libata tree?
ATA link PS is pretty complex with HIPM, DIPM and AHCI ALPM. I'm not
sure whether this
On Wed, 01 Aug 2007 03:02:55 +0900
Tejun Heo [EMAIL PROTECTED] wrote:
Kristen Carlson Accardi wrote:
I think what you are saying is that you'd like a way to use your HIPM
and DIPM without ALPM on the AHCI driver. Fine - it's really easy
to add these levels later - if they don't make sense
On Wed, 01 Aug 2007 02:48:42 +0900
Tejun Heo [EMAIL PROTECTED] wrote:
Hello, Kristen.
Kristen Carlson Accardi wrote:
On Tue, 31 Jul 2007 23:45:25 +0900
Tejun Heo [EMAIL PROTECTED] wrote:
Anyways, I don't really think this attribute belongs to SCSI sysfs
hierarchy. There currently
On Mon, 9 Jul 2007 19:36:04 +
Pavel Machek [EMAIL PROTECTED] wrote:
Hi!
This patch will modify the scsi subsystem to allow
users to set a power management policy for the link.
The scsi subsystem will create a new sysfs file for each
host in /sys/class/scsi_host called
Hi Jeff,
Here's the most recent patches for ALPM. These are also located at:
http://www.kernel.org/pub/linux/kernel/people/kristen/patches/SATA/alpm
These patches implement Aggressive Link Power management for AHCI
controllers. This feature is described in detail in the AHCI 1.x spec.
It
Use a stored value for which interrupts to enable. Changing this allows
us to selectively turn off certain interrupts later and have them
stay off.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/drivers/ata/ahci.c
User wants power savings, with less performance cost
than min_power (but less power savings as well).
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/drivers/scsi/hosts.c
===
--- 2.6-git.orig
and intialized. Drivers should also define
disable_pm, which will turn off link power management, but
not change link power management policy.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/drivers/ata/libata-scsi.c
idle. Hot plug not allowed.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/drivers/ata/ahci.c
===
--- 2.6-git.orig/drivers/ata/ahci.c
+++ 2.6-git/drivers/ata/ahci.c
@@ -48,6 +48,9 @@
#define DRV_NAME
Since gendisk will now become part of struct scsi_device, we don't need
to store this value in any private data structs where they already store
scsi_device. This series cleans up a few drivers which did this.
Kristen
--
-
To unsubscribe from this list: send the line unsubscribe linux-scsi in
Since gendisk is now part of scsi_device, don't store this struct
in private data struct
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/drivers/scsi/osst.c
===
--- 2.6-git.orig/drivers/scsi/osst.c
+++ 2.6
Since gendisk is now part of scsi_device, don't store this struct
in private data struct
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/drivers/scsi/sr.c
===
--- 2.6-git.orig/drivers/scsi/sr.c
+++ 2.6-git
Carlson Accardi [EMAIL PROTECTED]
Will you integrate it into the next posting?
yes, I will do that.
Kristen
-
To unsubscribe from this list: send the line unsubscribe linux-scsi in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
will be activated after all disks have been
enumerated and initialized. Drivers should also define
disable_pm, which will turn off link power management, but
not change link power management policy.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
---
I've updated this patch to fix a problem
second lowest power state (PARTIAL) when
idle. Hot plug not allowed.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
---
I've changed this patch to define disable_pm, and to change
the behavior of ahci_disable_alpm() to not change the link
pm policy, and just
On Wed, 13 Jun 2007 08:26:48 -0700
James Bottomley [EMAIL PROTECTED] wrote:
On Tue, 2007-06-12 at 10:46 -0700, Kristen Carlson Accardi wrote:
Expose Power Management Policy option to users
This patch will modify the scsi subsystem to allow
users to set a power management policy
On Wed, 13 Jun 2007 11:04:30 +0200
Pavel Machek [EMAIL PROTECTED] wrote:
Hi!
I'm not sure about this. We need better PM framework to support
powersaving in other controllers and some ahcis don't save much
when only link power management is used,
do you have data to support
On Tue, 12 Jun 2007 13:40:15 +0900
Tejun Heo [EMAIL PROTECTED] wrote:
I don't think the end result will vary in any significant way. My
biggest argument for sw implementation is it can be used for other
controllers.
What I had in mind when I created the new port operation enable_pm
was that
On Tue, 12 Jun 2007 11:46:56 -0400
Jeff Garzik [EMAIL PROTECTED] wrote:
Matthew Garrett wrote:
On Tue, Jun 12, 2007 at 11:17:14AM -0300, Henrique de Moraes Holschuh wrote:
On Tue, 12 Jun 2007, Matthew Garrett wrote:
Laptop bays are designed to deal with hotplugging PATA - I don't think
, not power
savings
medium_powerUser wants power savings, with less performance cost
than min_power (but less power savings as well).
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/drivers/scsi/hosts.c
will be activated after all disks have been
enumerated and intialized.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/drivers/ata/libata-scsi.c
===
--- 2.6-git.orig/drivers/ata/libata-scsi.c
+++ 2.6-git/drivers/ata
Hi,
This series of patches enables Aggressive Link Power Management for AHCI
devices, as documented in the AHCI spec. On my laptop (a Lenovo X60), this
saves me a full watt of power. On other systems, reported power savings
range from .5-1.5 Watts. It has been tested by the kind folks at
Use a stored value for which interrupts to enable. Changing this allows
us to selectively turn off certain interrupts later and have them
stay off.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/drivers/ata/ahci.c
power savings, with less performance cost
than min_power (but less power savings as well).
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/drivers/ata/libata-scsi.c
===
--- 2.6-git.orig/drivers
idle. Hot plug not allowed.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/drivers/ata/ahci.c
===
--- 2.6-git.orig/drivers/ata/ahci.c
+++ 2.6-git/drivers/ata/ahci.c
@@ -48,6 +48,9 @@
#define DRV_NAME
On Thu, 24 May 2007 23:15:56 -0400
Jeff Garzik [EMAIL PROTECTED] wrote:
Kristen Carlson Accardi wrote:
Check to see if an ATAPI device supports Asynchronous Notification.
If so, enable it.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
---
Andrew, I cleaned up the function
On Tue, 22 May 2007 14:12:11 -0700
Andrew Morton [EMAIL PROTECTED] wrote:
On Wed, 9 May 2007 16:38:35 -0700
Kristen Carlson Accardi [EMAIL PROTECTED] wrote:
Send an uevent to user space to indicate that a media change event has
occurred.
Signed-off-by: Kristen Carlson Accardi [EMAIL
On Wed, 23 May 2007 12:03:55 -0500
James Bottomley [EMAIL PROTECTED] wrote:
On Wed, 2007-05-23 at 09:31 -0700, Kristen Carlson Accardi wrote:
On Tue, 22 May 2007 14:12:11 -0700
Andrew Morton [EMAIL PROTECTED] wrote:
On Wed, 9 May 2007 16:38:35 -0700
Kristen Carlson Accardi [EMAIL
On Wed, 23 May 2007 13:51:51 -0500
James Bottomley [EMAIL PROTECTED] wrote:
On Wed, 2007-05-23 at 11:26 -0700, Kristen Carlson Accardi wrote:
On Wed, 23 May 2007 12:03:55 -0500
James Bottomley [EMAIL PROTECTED] wrote:
On Wed, 2007-05-23 at 09:31 -0700, Kristen Carlson Accardi wrote
Check to see if an ATAPI device supports Asynchronous Notification.
If so, enable it.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
---
Andrew, I cleaned up the function header to properly comply with kernel
doc requirements. Other than that, this patch is the same.
Index: 2.6-mm
On Mon, 7 May 2007 08:29:28 -0700
Kristen Carlson Accardi [EMAIL PROTECTED] wrote:
On Fri, 04 May 2007 15:30:48 -0500
James Bottomley [EMAIL PROTECTED] wrote:
On Fri, 2007-05-04 at 11:17 -0700, Kristen Carlson Accardi wrote:
Give anyone who has access to scsi_device access to the genhd
Hi Jeff,
Here are the AN patches again, they have not changed with the exception
of patch #1, which does set the host flag in board_ahci and board_ahci_pi
now (thanks Tejun).
This patch series implements Asynchronous Notification (AN) for SATA
ATAPI devices as defined in SATA 2.5 and AHCI 1.1 and
Check to see if an ATAPI device supports Asynchronous Notification.
If so, enable it.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/drivers/ata/libata-core.c
===
--- 2.6-git.orig/drivers/ata/libata-core.c
to define
the media change notification capability.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/block/genhd.c
===
--- 2.6-git.orig/block/genhd.c
+++ 2.6-git/block/genhd.c
@@ -370,7 +370,10 @@ static ssize_t
Get media change notification capability from disk and pass this information
to genhd by setting appropriate flag.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/drivers/scsi/sr.c
===
--- 2.6-git.orig
Send an uevent to user space to indicate that a media change event has occurred.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/block/genhd.c
===
--- 2.6-git.orig/block/genhd.c
+++ 2.6-git/block/genhd.c
If Asynchronous Notification of media change events is supported,
pass that information up to the SCSI layer.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/drivers/ata/libata-scsi.c
===
--- 2.6-git.orig
Give anyone who has access to scsi_device access to the genhd struct as well.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/drivers/scsi/sd.c
===
--- 2.6-git.orig/drivers/scsi/sd.c
+++ 2.6-git/drivers/scsi
When we get an SDB FIS with the 'N' bit set, we should send
an event to user space to indicate that there has been a
media change. This will be done via the block device.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/drivers/ata/ahci.c
On Fri, 04 May 2007 15:30:48 -0500
James Bottomley [EMAIL PROTECTED] wrote:
On Fri, 2007-05-04 at 11:17 -0700, Kristen Carlson Accardi wrote:
Give anyone who has access to scsi_device access to the genhd struct as
well.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index
This patch series implements Asynchronous Notification (AN) for SATA
ATAPI devices as defined in SATA 2.5 and AHCI 1.1 and higher. Drives
which support this feature will send a notification when new media is
inserted and removed, preventing the need for user space to poll for
new media. This
Check to see if an ATAPI device supports Asynchronous Notification.
If so, enable it.
Changes from last version:
* use parens around id in ata.h
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/drivers/ata/libata-core.c
to define
the media change notification capability.
Changed from last version:
* changed sysfs filename to capability from capability_flags
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/block/genhd.c
===
--- 2.6
Get media change notification capability from disk and pass this information
to genhd by setting appropriate flag.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/drivers/scsi/sr.c
===
--- 2.6-git.orig
Send an uevent to user space to indicate that a media change event has occurred.
Changes from last version:
* use get/put_device to increment reference count on the device struct
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/block/genhd.c
When we get an SDB FIS with the 'N' bit set, we should send
an event to user space to indicate that there has been a
media change. This will be done via the block device.
changed from last version:
* Make sure that port_addr is within ATA_MAX_DEVICES
Signed-off-by: Kristen Carlson Accardi
On Fri, 04 May 2007 15:30:03 -0500
James Bottomley [EMAIL PROTECTED] wrote:
On Fri, 2007-05-04 at 11:12 -0700, Kristen Carlson Accardi wrote:
This patch series implements Asynchronous Notification (AN) for SATA
ATAPI devices as defined in SATA 2.5 and AHCI 1.1 and higher. Drives
which
On Wed, 25 Apr 2007 02:49:46 +0200
Olivier Galibert [EMAIL PROTECTED] wrote:
On Tue, Apr 24, 2007 at 01:53:27PM -0700, Kristen Carlson Accardi wrote:
Check to see if an ATAPI device supports Asynchronous Notification.
If so, enable it.
changes from last version:
* fix typo
Check to see if an ATAPI device supports Asynchronous Notification.
If so, enable it.
Changes from last version:
* use parens around id in ata.h
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/drivers/ata/libata-core.c
On Wed, 25 Apr 2007 20:16:51 +0100
Matt Sealey [EMAIL PROTECTED] wrote:
+#define ata_id_has_AN(id) \
+ ( (((id)[76] != 0x) ((id)[76] != 0x)) \
+ ((id)[78] (1 5)) )
??
--- 2.6-git.orig/include/linux/libata.h
+++ 2.6-git/include/linux/libata.h
@@ -136,6 +136,7 @@
On Tue, 24 Apr 2007 12:23:04 +0200
Olivier Galibert [EMAIL PROTECTED] wrote:
Sorry for replying to Alan's reply, I missed the original mail.
+#define ata_id_has_AN(id)\
+ ((id[76] (~id[76])) ((id)[78] (1 5)))
(a ~a) (b 32)
I don't think that does what you think it
On Tue, 24 Apr 2007 17:03:29 +0900
Tejun Heo [EMAIL PROTECTED] wrote:
Hello,
Kristen Carlson Accardi wrote:
static unsigned int ata_print_id = 1;
@@ -1744,6 +1745,23 @@ int ata_dev_configure(struct ata_device
}
dev-cdb_len = (unsigned int) rc
On Tue, 24 Apr 2007 20:05:52 +0200
Olivier Galibert [EMAIL PROTECTED] wrote:
On Tue, Apr 24, 2007 at 08:49:04AM -0700, Kristen Carlson Accardi wrote:
On Tue, 24 Apr 2007 12:23:04 +0200
Olivier Galibert [EMAIL PROTECTED] wrote:
Sorry for replying to Alan's reply, I missed the original
Check to see if an ATAPI device supports Asynchronous Notification.
If so, enable it.
changes from last version:
* fix typo in ata_id_has_AN and make word 76 test more clear
* If we fail to set the AN feature, just print a warning and continue
Signed-off-by: Kristen Carlson Accardi [EMAIL
to define
the media change notification capability.
Changed from last version:
* changed sysfs filename to capability from capability_flags
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/block/genhd.c
===
--- 2.6
Send an uevent to user space to indicate that a media change event has occurred.
Changes from last version:
* use get/put_device to increment reference count on the device struct
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/block/genhd.c
When we get an SDB FIS with the 'N' bit set, we should send
an event to user space to indicate that there has been a
media change. This will be done via the block device.
changed from last version:
* Make sure that port_addr is within ATA_MAX_DEVICES
Signed-off-by: Kristen Carlson Accardi
Check to see if an ATAPI device supports Asynchronous Notification.
If so, enable it.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/drivers/ata/libata-core.c
===
--- 2.6-git.orig/drivers/ata/libata-core.c
This patch series implements Asynchronous Notification (AN) for SATA
ATAPI devices as defined in SATA 2.5 and AHCI 1.1 and higher. Drives
which support this feature will send a notification when new media is
inserted and removed, preventing the need for user space to poll for
new media. This
Get media change notification capability from disk and pass this information
to genhd by setting appropriate flag.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/drivers/scsi/sr.c
===
--- 2.6-git.orig
Send an uevent to user space to indicate that a media change event has occurred.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/block/genhd.c
===
--- 2.6-git.orig/block/genhd.c
+++ 2.6-git/block/genhd.c
Give anyone who has access to scsi_device access to the genhd struct as well.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/drivers/scsi/sd.c
===
--- 2.6-git.orig/drivers/scsi/sd.c
+++ 2.6-git/drivers/scsi
When we get an SDB FIS with the 'N' bit set, we should send
an event to user space to indicate that there has been a
media change. This will be done via the block device.
Signed-off-by: Kristen Carlson Accardi [EMAIL PROTECTED]
Index: 2.6-git/drivers/ata/ahci.c
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