Il 04/09/2012 04:21, Nicholas A. Bellinger ha scritto:
@@ -112,6 +118,9 @@ static void virtscsi_complete_cmd(struct virtio_scsi
*vscsi, void *buf)
struct virtio_scsi_cmd *cmd = buf;
struct scsi_cmnd *sc = cmd-sc;
struct virtio_scsi_cmd_resp *resp = cmd-resp.cmd;
+struct
On Tue, Sep 04, 2012 at 08:46:12AM +0200, Paolo Bonzini wrote:
Il 04/09/2012 04:21, Nicholas A. Bellinger ha scritto:
@@ -112,6 +118,9 @@ static void virtscsi_complete_cmd(struct virtio_scsi
*vscsi, void *buf)
struct virtio_scsi_cmd *cmd = buf;
struct scsi_cmnd *sc = cmd-sc;
Il 04/09/2012 10:46, Michael S. Tsirkin ha scritto:
+static int virtscsi_queuecommand_multi(struct Scsi_Host *sh,
+ struct scsi_cmnd *sc)
+{
+ struct virtio_scsi *vscsi = shost_priv(sh);
+ struct virtio_scsi_target_state *tgt = vscsi-tgt[sc-device-id];
+
https://bugzilla.kernel.org/show_bug.cgi?id=42969
Alan a...@lxorguk.ukuu.org.uk changed:
What|Removed |Added
CC||a...@lxorguk.ukuu.org.uk
On Tue, Sep 04, 2012 at 12:25:03PM +0200, Paolo Bonzini wrote:
Il 04/09/2012 10:46, Michael S. Tsirkin ha scritto:
+static int virtscsi_queuecommand_multi(struct Scsi_Host *sh,
+ struct scsi_cmnd *sc)
+{
+struct virtio_scsi *vscsi =
Il 04/09/2012 13:09, Michael S. Tsirkin ha scritto:
queuecommand on CPU #0 queuecommand #2 on CPU #1
--
atomic_inc_return(...) == 1
atomic_inc_return(...) == 2
On Tue, Aug 28, 2012 at 01:54:17PM +0200, Paolo Bonzini wrote:
This patch adds queue steering to virtio-scsi. When a target is sent
multiple requests, we always drive them to the same queue so that FIFO
processing order is kept. However, if a target was idle, we can choose
a queue
From: Steffen Maier ma...@linux.vnet.ibm.com
In FC fabrics with large zones, the automatic port_rescan on incoming ELS
and any adapter recovery can cause quite some traffic at the very same
time, especially if lots of Linux images share an HBA, which is common on
s390. This can cause trouble and
From: Steffen Maier ma...@linux.vnet.ibm.com
Duplicate fssrh_2 from a54ca0f62f953898b05549391ac2a8a4dad6482b
[SCSI] zfcp: Redesign of the debug tracing for HBA records.
complicates distinction of generic status read response from
local link up.
Duplicate fsscth1 from
From: Steffen Maier ma...@linux.vnet.ibm.com
If the mapping of FCP device bus ID and corresponding subchannel
is modified while the Linux image is suspended, the resume of FCP
devices can fail. During resume, zfcp gets callbacks from cio regarding
the modified subchannels but they can be
From: Martin Peschke mpesc...@linux.vnet.ibm.com
__scsi_remove_device (e.g. due to dev_loss_tmo) calls
zfcp_scsi_slave_destroy which in turn sends a close LUN FSF request to
the adapter. After 30 seconds without response,
zfcp_erp_timeout_handler kicks the ERP thread failing the close LUN
ERP
From: Steffen Maier ma...@linux.vnet.ibm.com
The pl vector has scount elements, i.e. pl[scount-1] is the last valid
element. For maximum sized requests, payload-counter == scount after
the last loop iteration. Therefore, do bounds checking first (with
boolean shortcut) to not access the invalid
James,
here is a series of zfcp fixes for the current 3.6-rc.
The patches apply on top of the current fixes branch of your scsi.git.
Steffen
Linux on System z Development
IBM Deutschland Research Development GmbH
Vorsitzender des Aufsichtsrats: Martin Jetter
Geschaeftsfuehrung: Dirk Wittkopp
From: Julia Lawall julia.law...@lip6.fr
If list_for_each_entry, etc complete a traversal of the list, the iterator
variable ends up pointing to an address at an offset from the list head,
and not a meaningful structure. Thus this value should not be used after
the end of the iterator. Replace
On Tue, Sep 04, 2012 at 01:18:31PM +0200, Paolo Bonzini wrote:
Il 04/09/2012 13:09, Michael S. Tsirkin ha scritto:
queuecommand on CPU #0 queuecommand #2 on CPU #1
--
atomic_inc_return(...) == 1
Il 04/09/2012 15:35, Michael S. Tsirkin ha scritto:
I see. I guess you can rewrite this as:
atomic_inc
if (atomic_read() == 1)
which is a bit cheaper, and make the fact
that you do not need increment and return to be atomic,
explicit.
It seems more complicated to me for hardly any reason.
Il 04/09/2012 14:48, Michael S. Tsirkin ha scritto:
This patch adds queue steering to virtio-scsi. When a target is sent
multiple requests, we always drive them to the same queue so that FIFO
processing order is kept. However, if a target was idle, we can choose
a queue arbitrarily. In
On Wed, Aug 29, 2012 at 10:59 AM, Dan Williams d...@fb.com wrote:
On Wed, 2012-08-29 at 06:50 +, Bart Van Assche wrote:
On 08/29/12 05:12, Dan Williams wrote:
John reports:
BUG: soft lockup - CPU#2 stuck for 23s! [kworker/u:8:2202]
[..]
Call Trace:
[8141782a]
On Tue, Sep 04, 2012 at 03:45:57PM +0200, Paolo Bonzini wrote:
Also - some kind of comment explaining why a similar race can not happen
with this lock in place would be nice: I see why this specific race can
not trigger but since lock is dropped later before you submit command, I
have hard
On Tue, Sep 04, 2012 at 03:49:42PM +0200, Paolo Bonzini wrote:
Il 04/09/2012 14:48, Michael S. Tsirkin ha scritto:
This patch adds queue steering to virtio-scsi. When a target is sent
multiple requests, we always drive them to the same queue so that FIFO
processing order is kept.
v6:
When user changes may_power_off flag through sysfs entry and if device
is already runtime suspended, resume resume it so that it can respect
this flag next time it is runtime suspended as suggested by Alan Stern.
Call scsi_autopm_get/put_device once in sr_check_events as suggested by
Alan
From: Aaron Lu aaron...@intel.com
The ODD will be placed into suspend state when:
1 For tray type ODD, no media inside and door closed;
2 For slot type ODD, no media inside;
And together with ACPI, when we suspend the ODD's parent(the port it
attached to), we will omit the power altogether to
Il 04/09/2012 16:19, Michael S. Tsirkin ha scritto:
Also - some kind of comment explaining why a similar race can not happen
with this lock in place would be nice: I see why this specific race can
not trigger but since lock is dropped later before you submit command, I
have hard time
From: Aaron Lu aaron...@intel.com
When ODD is runtime powered off, there is no meaning to check events for
it, so disk_(un)block_events will be called in its suspend/resume
callback.
Signed-off-by: Aaron Lu aaron...@intel.com
---
block/genhd.c | 2 ++
1 file changed, 2 insertions(+)
diff --git
From: Aaron Lu aaron...@intel.com
When ODD is runtime suspended and if it can be powered off(reflected by
the can_power_off flag), we will block events checking for it so that it
can stay in powered off state until resumed by:
1 user pressing the eject button or inserting a disc;
2 software
From: Aaron Lu aaron...@intel.com
Hard disk may also be runtime powered off, so set can_power_off flag
for it too if condition satisfies.
Signed-off-by: Aaron Lu aaron...@intel.com
---
drivers/ata/libata-acpi.c | 25 +
1 file changed, 17 insertions(+), 8 deletions(-)
From: Aaron Lu aaron...@intel.com
Add a new flag may_power_off for scsi device, it gives the user a chance
to control when the device is runtime suspended, can we remove its power
if possible.
And if the device can be powered off(reflected by can_power_off flag,
determined by individual driver),
From: Aaron Lu aaron...@intel.com
If user does not want the device being powered off when runtime
suspended by setting may_power_off flag to 0, we will not choose D3 cold
ACPI D-State for it.
Signed-off-by: Aaron Lu aaron...@intel.com
---
drivers/ata/libata-acpi.c | 4 +++-
1 file changed, 3
Il 04/09/2012 16:21, Michael S. Tsirkin ha scritto:
One reason is that, even though in practice I expect roughly the same
number of targets and VCPUs, hotplug means the number of targets is
difficult to predict and is usually fixed to 256.
The other reason is that per-target vq didn't
On Tue, Sep 04, 2012 at 04:30:35PM +0200, Paolo Bonzini wrote:
Il 04/09/2012 16:21, Michael S. Tsirkin ha scritto:
One reason is that, even though in practice I expect roughly the same
number of targets and VCPUs, hotplug means the number of targets is
difficult to predict and is usually
On Tue, Aug 28, 2012 at 01:54:17PM +0200, Paolo Bonzini wrote:
@@ -575,15 +630,19 @@ static struct scsi_host_template virtscsi_host_template
= {
__val, sizeof(__val)); \
})
+
Pls don't add empty lines.
static void virtscsi_init_vq(struct
On Tue, Sep 04, 2012 at 04:55:56PM +0200, Paolo Bonzini wrote:
Il 04/09/2012 16:47, Michael S. Tsirkin ha scritto:
static void virtscsi_init_vq(struct virtio_scsi_vq *virtscsi_vq,
- struct virtqueue *vq)
+ struct virtqueue *vq,
On Tuesday 04 September 2012 22:24:34 Aaron Lu wrote:
From: Aaron Lu aaron...@intel.com
The ODD will be placed into suspend state when:
1 For tray type ODD, no media inside and door closed;
2 For slot type ODD, no media inside;
And together with ACPI, when we suspend the ODD's parent(the
On Tuesday 04 September 2012 22:24:38 Aaron Lu wrote:
From: Aaron Lu aaron...@intel.com
Add a new flag may_power_off for scsi device, it gives the user a chance
to control when the device is runtime suspended, can we remove its power
if possible.
And if the device can be powered
Minor return fix.
Signed-off-by: Babu Moger babu.mo...@netapp.com
---
--- linux-3.6-rc1/drivers/scsi/device_handler/scsi_dh_rdac.c.orig
2012-09-04 12:13:40.0 -0500
+++ linux-3.6-rc1/drivers/scsi/device_handler/scsi_dh_rdac.c2012-09-04
12:15:26.0 -0500
@@ -863,7 +863,7
This patch adds a new vendor/product strings for netapp E series product.
Also consolidated the strings together with similar names.
Signed-off-by: Babu Moger babu.mo...@netapp.com
---
--- linux-3.6-rc1/drivers/scsi/device_handler/scsi_dh_rdac.c.orig
2012-09-04 11:55:54.0 -0500
This patch consolidates the strings together. Purpose is to remove minor
product strings extensions.
That way the future products with similar strings should not require change
here.
Signed-off-by: Babu Moger babu.mo...@netapp.com
---
---
Resending with correct subject line. This is patch 1/1.
Minor return fix.
Signed-off-by: Babu Moger babu.mo...@netapp.com
---
--- linux-3.6-rc1/drivers/scsi/device_handler/scsi_dh_rdac.c.orig
2012-09-04 12:13:40.0 -0500
+++ linux-3.6-rc1/drivers/scsi/device_handler/scsi_dh_rdac.c
On Tue, 4 Sep 2012, Oliver Neukum wrote:
On Tuesday 04 September 2012 22:24:34 Aaron Lu wrote:
From: Aaron Lu aaron...@intel.com
The ODD will be placed into suspend state when:
1 For tray type ODD, no media inside and door closed;
2 For slot type ODD, no media inside;
And together
Hi,
That's something that has been bothering me for a while but I hadn't
got to writing a question about it ...
I can see a stream of the following errors on my desktop
[233755.873770] sd 6:0:0:3: [sde] Test WP failed, assume Write Enabled
[233755.886450] sd 6:0:0:3: [sde] Asking for cache
On Tue, 2012-09-04 at 08:46 +0200, Paolo Bonzini wrote:
Il 04/09/2012 04:21, Nicholas A. Bellinger ha scritto:
@@ -112,6 +118,9 @@ static void virtscsi_complete_cmd(struct virtio_scsi
*vscsi, void *buf)
struct virtio_scsi_cmd *cmd = buf;
struct scsi_cmnd *sc = cmd-sc;
struct
On Tue, Sep 4, 2012 at 7:02 AM, John Drescher dresche...@gmail.com wrote:
On Wed, Aug 29, 2012 at 10:59 AM, Dan Williams d...@fb.com wrote:
On Wed, 2012-08-29 at 06:50 +, Bart Van Assche wrote:
On 08/29/12 05:12, Dan Williams wrote:
John reports:
BUG: soft lockup - CPU#2 stuck for 23s!
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