descriptors and
flush/barrier features to a separate function and call it from both
blkfront_connect and blkif_recover
Signed-off-by: Bob Liu
---
drivers/block/xen-blkfront.c | 118 +++---
1 file changed, 66 insertions(+), 52 deletions(-)
diff --git a/drivers/block
This BUG_ON() will be triggered when previous purge work haven't finished.
It's reasonable under pretty extreme load and should not panic the system.
Signed-off-by: Bob Liu
---
drivers/block/xen-blkback/blkback.c |4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers
This BUG_ON() in blkif_free() is incorrect, because indirect page can be added
to list info->indirect_pages in blkif_completion() no matter feature_persistent
is true or false.
Signed-off-by: Bob Liu
---
drivers/block/xen-blkfront.c |1 -
1 file changed, 1 deletion(-)
diff --git a/driv
This BUG_ON() will be triggered when previous purge work haven't finished.
It's reasonable under pretty extreme load and should not panic the system.
Signed-off-by: Bob Liu bob@oracle.com
---
drivers/block/xen-blkback/blkback.c |4 +++-
1 file changed, 3 insertions(+), 1 deletion
This BUG_ON() in blkif_free() is incorrect, because indirect page can be added
to list info-indirect_pages in blkif_completion() no matter feature_persistent
is true or false.
Signed-off-by: Bob Liu bob@oracle.com
---
drivers/block/xen-blkfront.c |1 -
1 file changed, 1 deletion(-)
diff
descriptors and
flush/barrier features to a separate function and call it from both
blkfront_connect and blkif_recover
Signed-off-by: Bob Liu bob@oracle.com
---
drivers/block/xen-blkfront.c | 118 +++---
1 file changed, 66 insertions(+), 52 deletions(-)
diff --git
dropped one unnecessary holding of info->io_lock when calling
blk_mq_stop_hw_queues().
Changes in v2:
- Reorganized blk_mq_queue_rq()
- Restored most io_locks in place
Change in v3:
- Rename blk_mq_queue_rq to blkif_queue_rq
Signed-off-by: Arianna Avanzini
Signed-off-by: Bob Liu
Revie
-by: Bob Liu bob@oracle.com
Reviewed-by: Christoph Hellwig h...@lst.de
Acked-by: Jens Axboe ax...@fb.com
---
drivers/block/xen-blkfront.c | 146 +-
1 file changed, 60 insertions(+), 86 deletions(-)
diff --git a/drivers/block/xen-blkfront.c b/drivers/block
On 07/12/2015 02:14 AM, Jens Axboe wrote:
> On 07/11/2015 07:30 AM, Bob Liu wrote:
>> Note: This patch is based on original work of Arianna's internship for
>> GNOME's Outreach Program for Women.
>
> Great to see this finally get prepped to go in!
>
>> Only one
dropped one unnecessary holding of info->io_lock when calling
blk_mq_stop_hw_queues().
Changes in v2:
- Reorganized blk_mq_queue_rq()
- Restored most io_locks in place
Signed-off-by: Arianna Avanzini
Signed-off-by: Bob Liu
---
drivers/block/xen-blkfront.c |
On 07/11/2015 03:57 AM, Konrad Rzeszutek Wilk wrote:
> On Mon, Jul 06, 2015 at 05:56:48PM +0800, Bob Liu wrote:
>> From: Arianna Avanzini
>>
>> This patch converts xen-blkfront driver to use the block multiqueue APIs.
>> Only one hardware queue is used now, so the
On 07/11/2015 03:57 AM, Konrad Rzeszutek Wilk wrote:
On Mon, Jul 06, 2015 at 05:56:48PM +0800, Bob Liu wrote:
From: Arianna Avanzini avanzini.aria...@gmail.com
This patch converts xen-blkfront driver to use the block multiqueue APIs.
Only one hardware queue is used now, so
dropped one unnecessary holding of info-io_lock when calling
blk_mq_stop_hw_queues().
Changes in v2:
- Reorganized blk_mq_queue_rq()
- Restored most io_locks in place
Signed-off-by: Arianna Avanzini avanzini.aria...@gmail.com
Signed-off-by: Bob Liu bob@oracle.com
---
drivers/block/xen
On 07/12/2015 02:14 AM, Jens Axboe wrote:
On 07/11/2015 07:30 AM, Bob Liu wrote:
Note: This patch is based on original work of Arianna's internship for
GNOME's Outreach Program for Women.
Great to see this finally get prepped to go in!
Only one hardware queue is used now, so
t; Signed-off-by: Julien Grall
Also hit the same issue, thank you for the fix.
Tested-by: Bob Liu
> Cc: Bernhard Thaler
> Cc: Pablo Neira Ayuso
> Cc: f...@strlen.de
> Cc: ian.campb...@citrix.com
> Cc: wei.l...@citrix.com
>
> ---
> Note that it's impossible to crea
unnecessary holding of info->io_lock when calling into blk-mq APIs.
Signed-off-by: Arianna Avanzini
Signed-off-by: Bob Liu
---
drivers/block/xen-blkfront.c | 173 ++
1 file changed, 73 insertions(+), 100 deletions(-)
diff --git a/drivers/block/
, and nvme.
Also dropped unnecessary holding of info-io_lock when calling into blk-mq APIs.
Signed-off-by: Arianna Avanzini avanzini.aria...@gmail.com
Signed-off-by: Bob Liu bob@oracle.com
---
drivers/block/xen-blkfront.c | 173 ++
1 file changed, 73
issue, thank you for the fix.
Tested-by: Bob Liu bob@oracle.com
Cc: Bernhard Thaler bernhard.tha...@wvnet.at
Cc: Pablo Neira Ayuso pa...@netfilter.org
Cc: f...@strlen.de
Cc: ian.campb...@citrix.com
Cc: wei.l...@citrix.com
---
Note that it's impossible to create new guest after
On 06/30/2015 10:21 PM, Marcus Granado wrote:
> On 13/05/15 11:29, Bob Liu wrote:
>>
>> On 04/28/2015 03:46 PM, Arianna Avanzini wrote:
>>> Hello Christoph,
>>>
>>> Il 28/04/2015 09:36, Christoph Hellwig ha scritto:
>>>> What happened to t
On 06/30/2015 10:21 PM, Marcus Granado wrote:
On 13/05/15 11:29, Bob Liu wrote:
On 04/28/2015 03:46 PM, Arianna Avanzini wrote:
Hello Christoph,
Il 28/04/2015 09:36, Christoph Hellwig ha scritto:
What happened to this patchset?
It was passed on to Bob Liu, who published a follow-up
On 06/09/2015 10:07 PM, Roger Pau Monné wrote:
> El 09/06/15 a les 15.39, Konrad Rzeszutek Wilk ha escrit:
...
>> Roger, I put them (patches) on devel/for-jens-4.2 on
>>
>> git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git
>>
>> I think these two patches:
>> drivers: xen-blkback: delay
On 06/09/2015 10:07 PM, Roger Pau Monné wrote:
El 09/06/15 a les 15.39, Konrad Rzeszutek Wilk ha escrit:
...
Roger, I put them (patches) on devel/for-jens-4.2 on
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git
I think these two patches:
drivers: xen-blkback: delay pending_req
On 06/09/2015 09:39 PM, Konrad Rzeszutek Wilk wrote:
> On Tue, Jun 09, 2015 at 08:52:53AM +, Paul Durrant wrote:
>>> -Original Message-
>>> From: Bob Liu [mailto:bob@oracle.com]
>>> Sent: 09 June 2015 09:50
>>> To: Bob Liu
>>>
On 06/03/2015 01:40 PM, Bob Liu wrote:
> Extend xen/block to support multi-page ring, so that more requests can be
> issued by using more than one pages as the request ring between blkfront
> and backend.
> As a result, the performance can get improved significantly.
>
> We g
On 06/03/2015 01:40 PM, Bob Liu wrote:
Extend xen/block to support multi-page ring, so that more requests can be
issued by using more than one pages as the request ring between blkfront
and backend.
As a result, the performance can get improved significantly.
We got some impressive
On 06/09/2015 09:39 PM, Konrad Rzeszutek Wilk wrote:
On Tue, Jun 09, 2015 at 08:52:53AM +, Paul Durrant wrote:
-Original Message-
From: Bob Liu [mailto:bob@oracle.com]
Sent: 09 June 2015 09:50
To: Bob Liu
Cc: xen-de...@lists.xen.org; David Vrabel; just...@spectralogic.com
in v4:
- Turn to use 'ring-page-order' and 'max-ring-page-order'.
- A few comments from Roger.
Changes in v5:
- Clarify with 4k granularity to comment
- Address more comments from Roger
Signed-off-by: Bob Liu
---
drivers/block/xen-blkback/blkback.c | 13
drivers/block/xen-blkback
This is a pre-patch for multi-page ring feature.
In connect_ring, we can know exactly how many pages are used for the shared
ring, delay pending_req allocation here so that we won't waste too much memory.
Signed-off-by: Bob Liu
---
drivers/block/xen-blkback/common.h |2 +-
drivers/block/xen
and
furthermore it would not allow frontend/backend to negotiate 'multi-page'
and 'multi-queue' features.
Changes in v2:
- Re-write the commit message to be more clear.
Signed-off-by: Bob Liu
Acked-by: Roger Pau Monné
---
drivers/block/xen-blkfront.c | 14 ++
1 file changed, 6 insertions(+), 8
and
furthermore it would not allow frontend/backend to negotiate 'multi-page'
and 'multi-queue' features.
Changes in v2:
- Re-write the commit message to be more clear.
Signed-off-by: Bob Liu bob@oracle.com
Acked-by: Roger Pau Monné roger@citrix.com
---
drivers/block/xen-blkfront.c | 14
in v4:
- Turn to use 'ring-page-order' and 'max-ring-page-order'.
- A few comments from Roger.
Changes in v5:
- Clarify with 4k granularity to comment
- Address more comments from Roger
Signed-off-by: Bob Liu bob@oracle.com
---
drivers/block/xen-blkback/blkback.c | 13
drivers
This is a pre-patch for multi-page ring feature.
In connect_ring, we can know exactly how many pages are used for the shared
ring, delay pending_req allocation here so that we won't waste too much memory.
Signed-off-by: Bob Liu bob@oracle.com
---
drivers/block/xen-blkback/common.h |2
On 06/01/2015 04:36 PM, Roger Pau Monné wrote:
> El 26/05/15 a les 2.06, Bob Liu ha escrit:
>> In connect_ring, we can know exactly how many pages are used for the shared
>> ring and also whether feature-persistent is enabled, delay pending_req
>> allocation here so that we
On 06/01/2015 03:50 PM, Roger Pau Monné wrote:
> El 26/05/15 a les 2.11, Bob Liu ha escrit:
>> When migrate from !feature-persistent host to feature-persistent host, domU
>> still think new host/backend don't support persistent.
>> Dmesg like:
>> backed has not unmapp
On 06/01/2015 04:36 PM, Roger Pau Monné wrote:
El 26/05/15 a les 2.06, Bob Liu ha escrit:
In connect_ring, we can know exactly how many pages are used for the shared
ring and also whether feature-persistent is enabled, delay pending_req
allocation here so that we won't waste too much memory
On 06/01/2015 03:50 PM, Roger Pau Monné wrote:
El 26/05/15 a les 2.11, Bob Liu ha escrit:
When migrate from !feature-persistent host to feature-persistent host, domU
still think new host/backend don't support persistent.
Dmesg like:
backed has not unmapped grant: 839
backed has not unmapped
not unmapped grant: 839
We should recheck whether the new backend support feature-persistent during
blkif_recover().
Signed-off-by: Bob Liu
---
drivers/block/xen-blkfront.c | 10 +-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen
In connect_ring, we can know exactly how many pages are used for the shared
ring and also whether feature-persistent is enabled, delay pending_req
allocation here so that we won't waste too much memory.
Signed-off-by: Bob Liu
---
drivers/block/xen-blkback/common.h | 3 +-
drivers/block/xen
not unmapped grant: 839
We should recheck whether the new backend support feature-persistent during
blkif_recover().
Signed-off-by: Bob Liu bob@oracle.com
---
drivers/block/xen-blkfront.c | 10 +-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/block/xen-blkfront.c b
In connect_ring, we can know exactly how many pages are used for the shared
ring and also whether feature-persistent is enabled, delay pending_req
allocation here so that we won't waste too much memory.
Signed-off-by: Bob Liu bob@oracle.com
---
drivers/block/xen-blkback/common.h | 3
On 05/22/2015 04:31 PM, Paul Durrant wrote:
>> -Original Message-
>> From: Bob Liu [mailto:bob@oracle.com]
>> Sent: 22 May 2015 01:00
>> To: xen-de...@lists.xen.org
>> Cc: David Vrabel; just...@spectralogic.com; konrad.w...@oracle.com; Roger
>> P
On 05/22/2015 04:31 PM, Paul Durrant wrote:
-Original Message-
From: Bob Liu [mailto:bob@oracle.com]
Sent: 22 May 2015 01:00
To: xen-de...@lists.xen.org
Cc: David Vrabel; just...@spectralogic.com; konrad.w...@oracle.com; Roger
Pau Monne; Paul Durrant; Julien Grall; boris.ostrov
in v4:
- Turn to use 'ring-page-order' and 'max-ring-page-order'.
- A few comments from Roger.
Changes in v5:
- Clarify 4k granularity to comment.
- Address more comments from Roger.
Signed-off-by: Bob Liu
---
drivers/block/xen-blkback/blkback.c | 13
drivers/block/xen-blkback
and
furthermore it would not allow frontend/backend to negotiate 'multi-page'
and 'multi-queue' features.
Changes in v2:
- Re-write the commit message to be more clear.
Signed-off-by: Bob Liu
Acked-by: Roger Pau Monné
---
drivers/block/xen-blkfront.c | 14 ++
1 file changed, 6 insertions(+), 8
On 05/21/2015 07:22 PM, Roger Pau Monné wrote:
> El 20/05/15 a les 15.10, Bob Liu ha escrit:
...
>> +} else {
>> +unsigned int i;
>> +
>> +if (ring_page_order > xen_blkif_max_ring_order) {
>> +err = -EINVAL;
>
On 05/21/2015 07:22 PM, Roger Pau Monné wrote:
El 20/05/15 a les 15.10, Bob Liu ha escrit:
...
+} else {
+unsigned int i;
+
+if (ring_page_order xen_blkif_max_ring_order) {
+err = -EINVAL;
+xenbus_dev_fatal(dev, err, %s
and
furthermore it would not allow frontend/backend to negotiate 'multi-page'
and 'multi-queue' features.
Changes in v2:
- Re-write the commit message to be more clear.
Signed-off-by: Bob Liu bob@oracle.com
Acked-by: Roger Pau Monné roger@citrix.com
---
drivers/block/xen-blkfront.c | 14
in v4:
- Turn to use 'ring-page-order' and 'max-ring-page-order'.
- A few comments from Roger.
Changes in v5:
- Clarify 4k granularity to comment.
- Address more comments from Roger.
Signed-off-by: Bob Liu bob@oracle.com
---
drivers/block/xen-blkback/blkback.c | 13
drivers/block
On 05/20/2015 11:00 PM, Julien Grall wrote:
> On 20/05/15 15:56, Roger Pau Monné wrote:
>> El 20/05/15 a les 15.21, Julien Grall ha escrit:
>>> Hi,
>>>
>>> On 20/05/15 14:10, Bob Liu wrote:
>>>> ---
>>>> drivers/block/xen-blkback/b
it would not allow frontend/backend to negotiate 'multi-page' and
'multi-queue' features.
Changes in v2:
- Re-write the commit message to be more clear.
Signed-off-by: Bob Liu
---
drivers/block/xen-blkfront.c | 14 ++
1 file changed, 6 insertions(+), 8 deletions(-)
diff --git
Changes in v4:
- Turn to use 'ring-page-order' and 'max-ring-page-order'.
- A few comments from Roger.
Signed-off-by: Bob Liu
---
drivers/block/xen-blkback/blkback.c | 12
drivers/block/xen-blkback/common.h | 3 +-
drivers/block/xen-blkback/xenbus.c | 85
it would not allow frontend/backend to negotiate 'multi-page' and
'multi-queue' features.
Changes in v2:
- Re-write the commit message to be more clear.
Signed-off-by: Bob Liu bob@oracle.com
---
drivers/block/xen-blkfront.c | 14 ++
1 file changed, 6 insertions(+), 8 deletions
Changes in v4:
- Turn to use 'ring-page-order' and 'max-ring-page-order'.
- A few comments from Roger.
Signed-off-by: Bob Liu bob@oracle.com
---
drivers/block/xen-blkback/blkback.c | 12
drivers/block/xen-blkback/common.h | 3 +-
drivers/block/xen-blkback/xenbus.c | 85
On 05/20/2015 11:00 PM, Julien Grall wrote:
On 20/05/15 15:56, Roger Pau Monné wrote:
El 20/05/15 a les 15.21, Julien Grall ha escrit:
Hi,
On 20/05/15 14:10, Bob Liu wrote:
---
drivers/block/xen-blkback/blkback.c | 12
drivers/block/xen-blkback/common.h | 3 +-
drivers/block
On 05/15/2015 07:13 PM, Roger Pau Monné wrote:
> El 12/05/15 a les 13.01, Bob Liu ha escrit:
>> Extend xen/block to support multi-page ring, so that more requests can be
>> issued
>> by using more than one pages as the request ring between blkfront and
>&
On 05/15/2015 07:14 PM, Roger Pau Monné wrote:
> El 15/05/15 a les 13.03, Bob Liu ha escrit:
>>
>> On 05/15/2015 06:01 PM, Roger Pau Monné wrote:
>>> El 12/05/15 a les 13.01, Bob Liu ha escrit:
>>>> The right place for talk_to_blkback() to query
On 05/15/2015 06:01 PM, Roger Pau Monné wrote:
> El 12/05/15 a les 13.01, Bob Liu ha escrit:
>> The right place for talk_to_blkback() to query backend features and transport
>> parameters is after backend entered XenbusStateInitWait. There is no problem
>
> talk_to_blkba
On 05/15/2015 06:01 PM, Roger Pau Monné wrote:
El 12/05/15 a les 13.01, Bob Liu ha escrit:
The right place for talk_to_blkback() to query backend features and transport
parameters is after backend entered XenbusStateInitWait. There is no problem
talk_to_blkback doesn't gather any backend
On 05/15/2015 07:14 PM, Roger Pau Monné wrote:
El 15/05/15 a les 13.03, Bob Liu ha escrit:
On 05/15/2015 06:01 PM, Roger Pau Monné wrote:
El 12/05/15 a les 13.01, Bob Liu ha escrit:
The right place for talk_to_blkback() to query backend features and
transport
parameters is after backend
On 05/15/2015 07:13 PM, Roger Pau Monné wrote:
El 12/05/15 a les 13.01, Bob Liu ha escrit:
Extend xen/block to support multi-page ring, so that more requests can be
issued
by using more than one pages as the request ring between blkfront and
backend.
As a result, the performance can get
On 04/28/2015 03:46 PM, Arianna Avanzini wrote:
> Hello Christoph,
>
> Il 28/04/2015 09:36, Christoph Hellwig ha scritto:
>> What happened to this patchset?
>>
>
> It was passed on to Bob Liu, who published a follow-up patchset here:
> https://lkml.org/lkml/2015
On 04/28/2015 03:46 PM, Arianna Avanzini wrote:
Hello Christoph,
Il 28/04/2015 09:36, Christoph Hellwig ha scritto:
What happened to this patchset?
It was passed on to Bob Liu, who published a follow-up patchset here:
https://lkml.org/lkml/2015/2/15/46
Right, and then I
XenbusStateConnected
Signed-off-by: Bob Liu
---
drivers/block/xen-blkfront.c | 14 ++
1 file changed, 6 insertions(+), 8 deletions(-)
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 2c61cf8..88e23fd 100644
--- a/drivers/block/xen-blkfront.c
+++ b
,
32 was really not enough to keep them busy.
Changes in v2:
- Rebased to 4.0-rc6
- Added description on how this protocol works into io/blkif.h
Changes in v3:
- Follow the protocol defined in io/blkif.h on XEN tree
Signed-off-by: Bob Liu
---
drivers/block/xen-blkback/blkback.c | 14
XenbusStateConnected
Signed-off-by: Bob Liu bob@oracle.com
---
drivers/block/xen-blkfront.c | 14 ++
1 file changed, 6 insertions(+), 8 deletions(-)
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 2c61cf8..88e23fd 100644
--- a/drivers/block/xen
,
32 was really not enough to keep them busy.
Changes in v2:
- Rebased to 4.0-rc6
- Added description on how this protocol works into io/blkif.h
Changes in v3:
- Follow the protocol defined in io/blkif.h on XEN tree
Signed-off-by: Bob Liu bob@oracle.com
---
drivers/block/xen-blkback
issue, I missed the xentpm-front.c file in that patch.
(Original patch from Wei Liu already included the right modification
which didn't exist in Paul's.)
Attached patch should fix this build failure.
--
Regards,
-Bob
>From 973eacee793595b9790957186ffd27f192f5dd4f Mon Sep 17 00:00:00 2001
From: Bob
-front.c file in that patch.
(Original patch from Wei Liu already included the right modification
which didn't exist in Paul's.)
Attached patch should fix this build failure.
--
Regards,
-Bob
From 973eacee793595b9790957186ffd27f192f5dd4f Mon Sep 17 00:00:00 2001
From: Bob Liu bob@oracle.com
On 04/01/2015 06:18 PM, David Vrabel wrote:
> On 26/03/15 12:16, Bob Liu wrote:
>> There are several place using gnttab async unmap and wait for
>> completion, so move the common code to a function
>> gnttab_unmap_refs_async_wait_completion().
&g
On 03/31/2015 08:15 PM, Bob Liu wrote:
> Extend xen/block to support multi-page ring, so that more requests can be
> issued
> by using more than one pages as the request ring between blkfront and backend.
> As a result, the performance can get improved significantly.
>
> We g
On 03/31/2015 08:15 PM, Bob Liu wrote:
Extend xen/block to support multi-page ring, so that more requests can be
issued
by using more than one pages as the request ring between blkfront and backend.
As a result, the performance can get improved significantly.
We got some impressive
On 04/01/2015 06:18 PM, David Vrabel wrote:
On 26/03/15 12:16, Bob Liu wrote:
There are several place using gnttab async unmap and wait for
completion, so move the common code to a function
gnttab_unmap_refs_async_wait_completion().
[...]
+
+int gnttab_unmap_refs_async_wait_completion
Hi Juergen,
On 03/31/2015 08:36 PM, Juergen Gross wrote:
> On 03/31/2015 02:15 PM, Bob Liu wrote:
>> From: Wei Liu
>>
>> Originally Xen PV drivers only use single-page ring to pass along
>> information. This might limit the throughput between frontend and
>>
,
32 was really not enough to keep them busy.
Change in V2:
* Rebased to 4.0-rc6
* Add description on how this protocol works into io/blkif.h
Signed-off-by: Bob Liu
---
drivers/block/xen-blkback/blkback.c | 2 +-
drivers/block/xen-blkback/common.h | 3 +-
drivers/block/xen-blkback/xenbus.c
aul Durrant
Signed-off-by: Bob Liu
Cc: Konrad Wilk
Cc: David Vrabel
Cc: Boris Ostrovsky
---
drivers/block/xen-blkback/xenbus.c | 5 +-
drivers/block/xen-blkfront.c | 5 +-
drivers/net/xen-netback/netback.c | 4 +-
drivers/net/xen-netfront.c | 9 +-
drivers/pci/xen-pcifron
wei.l...@citrix.com
Signed-off-by: Paul Durrant paul.durr...@citrix.com
Signed-off-by: Bob Liu bob@oracle.com
Cc: Konrad Wilk konrad.w...@oracle.com
Cc: David Vrabel david.vra...@citrix.com
Cc: Boris Ostrovsky boris.ostrov...@oracle.com
---
drivers/block/xen-blkback/xenbus.c | 5 +-
drivers/block
,
32 was really not enough to keep them busy.
Change in V2:
* Rebased to 4.0-rc6
* Add description on how this protocol works into io/blkif.h
Signed-off-by: Bob Liu bob@oracle.com
---
drivers/block/xen-blkback/blkback.c | 2 +-
drivers/block/xen-blkback/common.h | 3 +-
drivers/block/xen
Hi Juergen,
On 03/31/2015 08:36 PM, Juergen Gross wrote:
On 03/31/2015 02:15 PM, Bob Liu wrote:
From: Wei Liu wei.l...@citrix.com
Originally Xen PV drivers only use single-page ring to pass along
information. This might limit the throughput between frontend and
backend.
The patch extends
On 03/28/2015 08:44 AM, Konrad Rzeszutek Wilk wrote:
> On Thu, Mar 26, 2015 at 04:32:45PM +0100, Roger Pau Monné wrote:
>> El 26/03/15 a les 13.16, Bob Liu ha escrit:
>>> There are several place using gnttab async unmap and wait for
>>> completion, so move th
On 03/28/2015 08:44 AM, Konrad Rzeszutek Wilk wrote:
On Thu, Mar 26, 2015 at 04:32:45PM +0100, Roger Pau Monné wrote:
El 26/03/15 a les 13.16, Bob Liu ha escrit:
There are several place using gnttab async unmap and wait for
completion, so move the common code to a function
There are several place using gnttab async unmap and wait for
completion, so move the common code to a function
gnttab_unmap_refs_async_wait_completion().
Signed-off-by: Bob Liu
---
drivers/block/xen-blkback/blkback.c | 31 +++
drivers/xen/gntdev.c
her unless no longer in use.
Signed-off-by: Bob Liu
---
drivers/block/xen-blkback/blkback.c | 24 ++--
1 file changed, 18 insertions(+), 6 deletions(-)
diff --git a/drivers/block/xen-blkback/blkback.c
b/drivers/block/xen-blkback/blkback.c
index 2a04d34..f59d7c3 100644
--- a/drivers
On 03/26/2015 07:15 PM, Roger Pau Monné wrote:
> Hello,
>
> El 25/03/15 a les 11.02, Bob Liu ha escrit:
>> +gnttab_unmap_refs_async(_data);
>> +wait_for_completion(_completion);
>
> I think David had a comment about putting this into some ki
in use.
Signed-off-by: Bob Liu bob@oracle.com
---
drivers/block/xen-blkback/blkback.c | 24 ++--
1 file changed, 18 insertions(+), 6 deletions(-)
diff --git a/drivers/block/xen-blkback/blkback.c
b/drivers/block/xen-blkback/blkback.c
index 2a04d34..f59d7c3 100644
There are several place using gnttab async unmap and wait for
completion, so move the common code to a function
gnttab_unmap_refs_async_wait_completion().
Signed-off-by: Bob Liu bob@oracle.com
---
drivers/block/xen-blkback/blkback.c | 31 +++
drivers/xen/gntdev.c
On 03/26/2015 07:15 PM, Roger Pau Monné wrote:
Hello,
El 25/03/15 a les 11.02, Bob Liu ha escrit:
+gnttab_unmap_refs_async(unmap_data);
+wait_for_completion(unmap_completion);
I think David had a comment about putting this into some kind of common
helper since
her unless no longer in use.
Signed-off-by: Bob Liu
---
drivers/block/xen-blkback/blkback.c | 24 ++--
1 file changed, 18 insertions(+), 6 deletions(-)
diff --git a/drivers/block/xen-blkback/blkback.c
b/drivers/block/xen-blkback/blkback.c
index 2a04d34..f59d7c3 100644
--- a/drivers
in use.
Signed-off-by: Bob Liu bob@oracle.com
---
drivers/block/xen-blkback/blkback.c | 24 ++--
1 file changed, 18 insertions(+), 6 deletions(-)
diff --git a/drivers/block/xen-blkback/blkback.c
b/drivers/block/xen-blkback/blkback.c
index 2a04d34..f59d7c3 100644
On 03/17/2015 10:52 PM, Felipe Franciosi wrote:
> Hi Bob,
>
> I've put the hardware back together and am sorting out the software for
> testing. Things are not moving as fast as I wanted due to other commitments.
> I'll keep this thread updated as I progress. Malcolm is OOO and I'm trying to
Hi Felipe,
On 03/06/2015 06:30 PM, Felipe Franciosi wrote:
>> -Original Message-
>> From: Bob Liu [mailto:bob@oracle.com]
>> Sent: 05 March 2015 00:47
>> To: Konrad Rzeszutek Wilk
>> Cc: Roger Pau Monne; Felipe Franciosi; David Vrabel; xen-de...@
Hi Felipe,
On 03/06/2015 06:30 PM, Felipe Franciosi wrote:
-Original Message-
From: Bob Liu [mailto:bob@oracle.com]
Sent: 05 March 2015 00:47
To: Konrad Rzeszutek Wilk
Cc: Roger Pau Monne; Felipe Franciosi; David Vrabel; xen-de...@lists.xen.org;
linux-kernel@vger.kernel.org; ax
On 03/17/2015 10:52 PM, Felipe Franciosi wrote:
Hi Bob,
I've put the hardware back together and am sorting out the software for
testing. Things are not moving as fast as I wanted due to other commitments.
I'll keep this thread updated as I progress. Malcolm is OOO and I'm trying to
get
On 03/05/2015 05:21 AM, Konrad Rzeszutek Wilk wrote:
>>> David assertion that better performance and scalbility can be gained
>>> with grant table locking and TLB flush avoidance is interesting - as
>>> 1). The grant locking is going in Xen 4.6 but not earlier - so when running
>>> on older
On 03/05/2015 05:21 AM, Konrad Rzeszutek Wilk wrote:
David assertion that better performance and scalbility can be gained
with grant table locking and TLB flush avoidance is interesting - as
1). The grant locking is going in Xen 4.6 but not earlier - so when running
on older hypervisors
On 02/21/2015 02:59 AM, Konrad Rzeszutek Wilk wrote:
>>
>> Agree, Life would be easier if we can remove the persistent feature.
>
> ..snip..
>
> If Konrad/Bob agree I would like to send a patch to remove persistent
> grants and then have the multiqueue series rebased on top
On 02/21/2015 02:59 AM, Konrad Rzeszutek Wilk wrote:
Agree, Life would be easier if we can remove the persistent feature.
..snip..
If Konrad/Bob agree I would like to send a patch to remove persistent
grants and then have the multiqueue series rebased on top of that.
..snip..
I agree
On 02/19/2015 01:05 AM, Christoph Hellwig wrote:
> On Sun, Feb 15, 2015 at 04:18:58PM +0800, Bob Liu wrote:
>> diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
>> index 3589436..5a90a51 100644
>> --- a/drivers/block/xen-blkfront.c
>> +++ b/d
On 02/19/2015 02:22 AM, Felipe Franciosi wrote:
>
>
>> -Original Message-----
>> From: Bob Liu [mailto:bob@oracle.com]
>> Sent: 15 February 2015 08:19
>> To: xen-de...@lists.xen.org
>> Cc: David Vrabel; linux-kernel@vger.kernel.org; Roger Pau Monn
On 02/19/2015 02:08 AM, Felipe Franciosi wrote:
>> -Original Message-
>> From: Konrad Rzeszutek Wilk [mailto:konrad.w...@oracle.com]
>> Sent: 18 February 2015 17:38
>> To: Roger Pau Monne
>> Cc: Bob Liu; xen-de...@lists.xen.org; David Vrabel; linux-
>
On 02/19/2015 01:05 AM, Christoph Hellwig wrote:
On Sun, Feb 15, 2015 at 04:18:58PM +0800, Bob Liu wrote:
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 3589436..5a90a51 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -614,25
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