On 04/27/2016 07:28 PM, Michael S. Tsirkin wrote:
> On Tue, Apr 26, 2016 at 03:35:53AM -0400, Jason Wang wrote:
>> We don't stop polling socket during rx processing, this will lead
>> unnecessary wakeups from under layer net devices (E.g
>> sock_def_readable() form tun). R
is contention. Pktgen tests shows about 5% improvement:
>>
>> Before:
>> ~130 pps
>> After:
>> ~137 pps
>>
>> Signed-off-by: Jason Wang <jasow...@redhat.com>
>> ---
>> drivers/vhost/vhost.c | 52
>> +
: Michael S. Tsirkin <m...@redhat.com>
Signed-off-by: Jason Wang <jasow...@redhat.com>
Changes from V1:
- Fix build when CONFIG_RPS is not set
---
drivers/net/tun.c | 4 +++-
net/core/dev.c| 1 +
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/net/tun.c b/drive
On 04/26/2016 09:55 AM, Jason Wang wrote:
> There's no need to calculate rps hash if it was not enabled. So this
> patch export rps_needed and check it before trying to get rps
> hash. Tests (using pktgen to inject packets to guest) shows this can
> improve pps about 13% (when rps
We used to implement the work flushing through tracking queued seq,
done seq, and the number of flushing. This patch simplify this by just
implement work flushing through another kind of vhost work with
completion. This will be used by lockless enqueuing patch.
Signed-off-by: Jason Wang <ja
We use spinlock to synchronize the work list now which may cause
unnecessary contentions. So this patch switch to use llist to remove
this contention. Pktgen tests shows about 5% improvement:
Before:
~130 pps
After:
~137 pps
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
d
: Michael S. Tsirkin <m...@redhat.com>
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
drivers/net/tun.c | 2 +-
net/core/dev.c| 1 +
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index afdf950..746877f 100644
--- a/drivers/net
On 04/14/2016 05:10 PM, Michael S. Tsirkin wrote:
> On Thu, Apr 14, 2016 at 05:07:50PM +0800, Jason Wang wrote:
>>
>> On 04/14/2016 05:05 PM, Michael S. Tsirkin wrote:
>>> On Thu, Apr 14, 2016 at 02:49:28PM +0800, Jason Wang wrote:
>>>>>
>>>>
On 04/14/2016 05:05 PM, Michael S. Tsirkin wrote:
> On Thu, Apr 14, 2016 at 02:49:28PM +0800, Jason Wang wrote:
>> >
>> >
>> > On 04/13/2016 06:26 PM, Michael S. Tsirkin wrote:
>>> > > On Wed, Apr 13, 2016 at 11:04:47AM +0200, Paolo Abeni wrote:
&g
->vlan_features = dev->features &
> ~(NETIF_F_HW_VLAN_CTAG_TX |
> NETIF_F_HW_VLAN_STAG_TX);
Acked-by: Jason Wang <jasow...@redhat.com>
On 04/13/2016 06:26 PM, Michael S. Tsirkin wrote:
> On Wed, Apr 13, 2016 at 11:04:47AM +0200, Paolo Abeni wrote:
>> This patch disables the default qdisc by explicitly setting the
>> IFF_NO_QUEUE private flag so that now the tun xmit path do not
>> require any lock by default.
>>
>> The default
ix IFF_NO_QUEUE for drivers using alloc_netdev")
Cc: Phil Sutter <p...@nwl.cc>
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
drivers/net/tun.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 510e90a..2c9e45f
On 04/01/2016 09:04 PM, Eric Dumazet wrote:
> On Fri, 2016-04-01 at 12:49 +0800, Jason Wang wrote:
>> On 04/01/2016 10:55 AM, Eric Dumazet wrote:
>>> On Fri, 2016-04-01 at 10:13 +0800, Jason Wang wrote:
>>>
>>>
>>>> The problem is we want to suppo
On 04/01/2016 10:55 AM, Eric Dumazet wrote:
> On Fri, 2016-04-01 at 10:13 +0800, Jason Wang wrote:
>
>
>> The problem is we want to support busy polling for tun. This needs
>> napi_id to be passed to tun socket by sk_mark_napi_id() during
>> tun_net_xmit(). But before
On 04/01/2016 04:01 AM, David Miller wrote:
> From: Eric Dumazet <eric.duma...@gmail.com>
> Date: Thu, 31 Mar 2016 03:32:21 -0700
>
>> On Thu, 2016-03-31 at 13:50 +0800, Jason Wang wrote:
>>> We use a union for napi_id and send_cpu, this is ok for most of the
On 03/31/2016 06:32 PM, Eric Dumazet wrote:
> On Thu, 2016-03-31 at 13:50 +0800, Jason Wang wrote:
>> We use a union for napi_id and send_cpu, this is ok for most of the
>> cases except when we want to support busy polling for tun which needs
>> napi_id to be stored and pa
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
drivers/net/macvtap.c | 4
1 file changed, 4 insertions(+)
diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index 95394ed..1891aff 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -20,6 +20,7 @@
#i
%/ -6%
1024/50/ +1%/ +1%/ +1%/ +1%/ -10%
1024/ 100/ +4%/ +4%/ +5%/ +5%/ -11%
1024/ 200/ +4%/ +5%/ +4%/ +4%/ -12%
Thanks
Jason Wang (6):
net: skbuff: don't use union for napi_id and sender_cpu
tuntap: socket rx busy polling support
macvtap: socket rx
was enabled. Fixing by not using union for napi_id
and sender_cpu.
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
include/linux/skbuff.h | 10 +-
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 15d0df9..8aee891
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
drivers/net/tun.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index afdf950..950faf5 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -69,6 +69,7 @@
#include
#i
This patch factors out core logic of busy polling to
sk_busy_loop_once() in order to be reused by other modules.
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
include/net/busy_poll.h | 7 ++
net/core/dev.c | 59 -
2
This patch exports napi_by_id() which will be used by vhost_net socket
busy polling.
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
include/net/busy_poll.h | 1 +
net/core/dev.c | 3 ++-
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/include/net/busy_poll.h b/i
%/ +5%/ +5%/ +5%/ -11%
256/ 200/ +4%/ +4%/ +4%/ +4%/ -13%
1024/ 1/0%/ -3%/0%/0%/ -6%
1024/50/ +1%/ +1%/ +1%/ +1%/ -10%
1024/ 100/ +4%/ +4%/ +5%/ +5%/ -11%
1024/ 200/ +4%/ +5%/ +4%/ +4%/ -12%
Signed-off-by: Jason Wang <ja
.
Thanks
Jason Wang (2):
vhost: convert pre sorted vhost memory array to interval tree
vhost: device IOTLB API
drivers/vhost/net.c| 14 +-
drivers/vhost/vhost.c | 427 +++--
drivers/vhost/vhost.h | 42 -
fs/eventfd.c
userspace finishes the translation, it will update the vhost
IOTLB through VHOST_UPDATE_IOTLB ioctl. Userspace is also in charge of
snooping the IOTLB invalidation of IOMMU IOTLB and use
VHOST_UPDATE_IOTLB to invalidate the possible entry in vhost.
Signed-off-by: Jason Wang <jasow...@redhat.
the userspace to send diffs of
memory table.
- Simplify Device IOTLB implementation.
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
drivers/vhost/net.c | 8 +--
drivers/vhost/vhost.c | 182 --
drivers/vhost/vhost.h | 27 ++--
3
On 03/10/2016 02:48 PM, Michael Rapoport wrote:
> Hi Greg,
>
>> > Greg Kurz <gk...@linux.vnet.ibm.com> wrote on 03/09/2016 09:26:45 PM:
>>> > > On Fri, 4 Mar 2016 06:24:50 -0500
>>> > > Jason Wang <jasow...@redhat.com> wrote:
>> &
This path introduces a helper which can give a hint for whether or not
there's a work queued in the work list. This could be used for busy
polling code to exit the busy loop.
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
drivers/vhost/vhost.c | 7 +++
drivers/vhost/vhost.h |
for busyloop_timeout
- split out the busy polling logic into a new helper
- check and exit the loop when there's a pending signal
- disable preemption during busy looping to make sure lock_clock() was
correctly used.
Jason Wang (3):
vhost: introduce vhost_has_work()
vhost: introduce
This patch introduces a helper which will return true if we're sure
that the available ring is empty for a specific vq. When we're not
sure, e.g vq access failure, return false instead. This could be used
for busy polling code to exit the busy loop.
Signed-off-by: Jason Wang <jasow...@redhat.
This patch tries to poll for new added tx buffer or socket receive
queue for a while at the end of tx/rx processing. The maximum time
spent on polling were specified through a new kind of vring ioctl.
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
drivers/vhost/net.c
On 02/29/2016 05:56 AM, Christian Borntraeger wrote:
> On 02/26/2016 09:42 AM, Jason Wang wrote:
>> > This patch tries to poll for new added tx buffer or socket receive
>> > queue for a while at the end of tx/rx processing. The maximum time
>> > spent on polling wer
On 02/28/2016 10:09 PM, Michael S. Tsirkin wrote:
> On Fri, Feb 26, 2016 at 04:42:44PM +0800, Jason Wang wrote:
>> > This patch tries to poll for new added tx buffer or socket receive
>> > queue for a while at the end of tx/rx processing. The maximum time
>> > s
This path introduces a helper which can give a hint for whether or not
there's a work queued in the work list. This could be used for busy
polling code to exit the busy loop.
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
drivers/vhost/vhost.c | 7 +++
drivers/vhost/vhost.h |
This patch tries to poll for new added tx buffer or socket receive
queue for a while at the end of tx/rx processing. The maximum time
spent on polling were specified through a new kind of vring ioctl.
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
drivers/vhost/net.c
and exit the loop when there's a pending signal
- disable preemption during busy looping to make sure lock_clock() was
correctly used.
Jason Wang (3):
vhost: introduce vhost_has_work()
vhost: introduce vhost_vq_avail_empty()
vhost_net: basic polling support
drivers/vhost/net.c| 79
This patch introduces a helper which will return true if we're sure
that the available ring is empty for a specific vq. When we're not
sure, e.g vq access failure, return false instead. This could be used
for busy polling code to exit the busy loop.
Signed-off-by: Jason Wang <jasow...@redhat.
On 02/08/2016 11:14 AM, Vladislav Yasevich wrote:
> This is an RFC series to extend macvtap with multiple qdisc. Right now
> multiqueue macvtap setups suffer from lock contention. Macvtap sets
> the queue index and thus gets a default qdisc allocated to it. Since
> it later users
On 01/25/2016 03:58 PM, Michael Rapoport wrote:
> (restored 'CC, sorry for dropping it originally, Notes is still hard
> for me)
>
> > Jason Wang <jasow...@redhat.com> wrote on 01/25/2016 05:00:05 AM:
> > On 01/24/2016 05:00 PM, Mike Rapoport wrote:
> > &g
On 01/20/2016 10:09 PM, Michael S. Tsirkin wrote:
> On Tue, Dec 01, 2015 at 02:39:44PM +0800, Jason Wang wrote:
>> Signed-off-by: Jason Wang <jasow...@redhat.com>
> Wow new API with no comments anywhere, and no
> commit log to say what it's good for.
> Want to know
On 01/20/2016 10:35 PM, Michael S. Tsirkin wrote:
> On Tue, Dec 01, 2015 at 02:39:45PM +0800, Jason Wang wrote:
>> This patch tries to poll for new added tx buffer or socket receive
>> queue for a while at the end of tx/rx processing. The maximum time
>> spent on polling w
On 01/05/2016 11:18 AM, Yang Zhang wrote:
> On 2016/1/4 14:22, Jason Wang wrote:
>>
>>
>> On 01/04/2016 09:39 AM, Yang Zhang wrote:
>>> On 2015/12/31 15:13, Jason Wang wrote:
>>>> This patch tries to implement an device IOTLB for vhost. Thi
On 01/04/2016 09:39 AM, Yang Zhang wrote:
> On 2015/12/31 15:13, Jason Wang wrote:
>> This patch tries to implement an device IOTLB for vhost. This could be
>> used with for co-operation with userspace(qemu) implementation of
>> iommu for a secure DMA environment in
On 12/31/2015 07:17 PM, Michael S. Tsirkin wrote:
> On Thu, Dec 31, 2015 at 03:13:45PM +0800, Jason Wang wrote:
>> This patch tries to implement an device IOTLB for vhost. This could be
>> used with for co-operation with userspace(qemu) implementation of
>> iommu for a s
On 12/22/2015 05:07 PM, Stefan Hajnoczi wrote:
> This series is based on v4.4-rc2 and the "virtio: make find_vqs()
> checkpatch.pl-friendly" patch I recently submitted.
>
> v4:
> * Addressed code review comments from Alex Bennee
> * MAINTAINERS file entries for new files
> * Trace events
ABLE is not reused (maybe there's a chance).
- working at PAGE_SIZE level, don't support large mappings.
- better data structure for IOTLB instead of simple hash array.
- better API, e.g using mmap() instead of preset userspace address.
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
drivers/v
On 12/02/2015 08:36 PM, Michael S. Tsirkin wrote:
> On Wed, Dec 02, 2015 at 01:04:03PM +0800, Jason Wang wrote:
>>
>> On 12/01/2015 10:43 PM, Michael S. Tsirkin wrote:
>>> On Tue, Dec 01, 2015 at 01:17:49PM +0800, Jason Wang wrote:
>>>> On 11/30/201
On 12/01/2015 10:43 PM, Michael S. Tsirkin wrote:
> On Tue, Dec 01, 2015 at 01:17:49PM +0800, Jason Wang wrote:
>>
>> On 11/30/2015 06:44 PM, Michael S. Tsirkin wrote:
>>> On Wed, Nov 25, 2015 at 03:11:29PM +0800, Jason Wang wrote:
>>>>> This patch tries to
On 11/30/2015 06:44 PM, Michael S. Tsirkin wrote:
> On Wed, Nov 25, 2015 at 03:11:29PM +0800, Jason Wang wrote:
>> > This patch tries to poll for new added tx buffer or socket receive
>> > queue for a while at the end of tx/rx processing. The maximum time
>> > s
for busyloop_timeout
- Split out the busy polling logic into a new helper
- Check and exit the loop when there's a pending signal
- Disable preemption during busy looping to make sure lock_clock() was
correctly used.
Jason Wang (3):
vhost: introduce vhost_has_work()
vhost: introduce vhost_vq_more_avail
On 11/30/2015 04:22 PM, Michael S. Tsirkin wrote:
> On Wed, Nov 25, 2015 at 03:11:28PM +0800, Jason Wang wrote:
>> Signed-off-by: Jason Wang <jasow...@redhat.com>
>> ---
>> drivers/vhost/vhost.c | 26 +-
>> drivers/vhost/vhost.h | 1 +
&
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
drivers/vhost/vhost.c | 13 +
drivers/vhost/vhost.h | 1 +
2 files changed, 14 insertions(+)
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 163b365..4f45a03 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers
This patch tries to poll for new added tx buffer or socket receive
queue for a while at the end of tx/rx processing. The maximum time
spent on polling were specified through a new kind of vring ioctl.
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
drivers/vhost/net.c
This path introduces a helper which can give a hint for whether or not
there's a work queued in the work list.
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
drivers/vhost/vhost.c | 7 +++
drivers/vhost/vhost.h | 1 +
2 files changed, 8 insertions(+)
diff --git a/drivers/vhost/v
This path introduces a helper which can give a hint for whether or not
there's a work queued in the work list.
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
drivers/vhost/vhost.c | 7 +++
drivers/vhost/vhost.h | 1 +
2 files changed, 8 insertions(+)
diff --git a/drivers/vhost/v
() was
correctly used.
Jason Wang (3):
vhost: introduce vhost_has_work()
vhost: introduce vhost_vq_more_avail()
vhost_net: basic polling support
drivers/vhost/net.c| 72 ++
drivers/vhost/vhost.c | 48
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
drivers/vhost/vhost.c | 26 +-
drivers/vhost/vhost.h | 1 +
2 files changed, 18 insertions(+), 9 deletions(-)
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 163b365..b86c5aa 100644
--- a/drivers
This patch tries to poll for new added tx buffer or socket receive
queue for a while at the end of tx/rx processing. The maximum time
spent on polling were specified through a new kind of vring ioctl.
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
drivers/vhost/net.c
_SIZE - 1))) {
> r = -EINVAL;
> break;
> }
Acked-by: Jason Wang <jasow...@redhat.com>
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On 11/13/2015 05:20 PM, Jason Wang wrote:
>
> On 11/12/2015 08:02 PM, Felipe Franciosi wrote:
>> Hi Jason,
>>
>> I understand your busy loop timeout is quite conservative at 50us. Did you
>> try any other values?
> I've also tried 20us. And results shows 50u
t tested this for vhost
polling. Will run some simple test (e.g pin two vhost threads in one
host cpu), and see how well it perform.
Thanks
>
> Thanks,
> Felipe
>
>
>
> On 12/11/2015 10:20, "kvm-ow...@vger.kernel.org on behalf of Jason Wang"
> <kvm-ow...@vger.
This patch tries to poll for new added tx buffer or socket receive
queue for a while at the end of tx/rx processing. The maximum time
spent on polling were specified through a new kind of vring ioctl.
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
drivers/vhost/net.c
logic into a new helper
- Check and exit the loop when there's a pending signal
- Disable preemption during busy looping to make sure lock_clock() was
correctly used.
Jason Wang (3):
vhost: introduce vhost_has_work()
vhost: introduce vhost_vq_more_avail()
vhost_net: basic polling support
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
drivers/vhost/vhost.c | 26 +-
drivers/vhost/vhost.h | 1 +
2 files changed, 18 insertions(+), 9 deletions(-)
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 163b365..b86c5aa 100644
--- a/drivers
This path introduces a helper which can give a hint for whether or not
there's a work queued in the work list.
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
drivers/vhost/vhost.c | 7 +++
drivers/vhost/vhost.h | 1 +
2 files changed, 8 insertions(+)
diff --git a/drivers/vhost/v
On 11/12/2015 06:16 PM, Jason Wang wrote:
> Hi all:
>
> This series tries to add basic busy polling for vhost net. The idea is
> simple: at the end of tx/rx processing, busy polling for new tx added
> descriptor and rx receive socket for a while. The maximum number of
>
On 10/30/2015 07:58 PM, Jason Wang wrote:
>
> On 10/29/2015 04:45 PM, Jason Wang wrote:
>> Hi all:
>>
>> This series tries to add basic busy polling for vhost net. The idea is
>> simple: at the end of tx processing, busy polling for new tx added
>> descript
On 10/29/2015 04:45 PM, Jason Wang wrote:
> Hi all:
>
> This series tries to add basic busy polling for vhost net. The idea is
> simple: at the end of tx processing, busy polling for new tx added
> descriptor and rx receive socket for a while. The maximum number of
> time (in
This path introduces a helper which can give a hint for whether or not
there's a work queued in the work list.
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
drivers/vhost/vhost.c | 7 +++
drivers/vhost/vhost.h | 1 +
2 files changed, 8 insertions(+)
diff --git a/drivers/vhost/v
per VM through ioctl.
Please review.
Thanks
Jason Wang (2):
vhost: introduce vhost_has_work()
vhost_net: basic polling support
drivers/vhost/net.c | 54 +++
drivers/vhost/vhost.c | 7 +++
drivers/vhost/vhost.h | 1 +
3 files changed, 58
.
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
drivers/vhost/net.c | 54 +
1 file changed, 50 insertions(+), 4 deletions(-)
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index 9eda69e..30e6d3d 100644
--- a/drivers/vhost/net.c
On 10/28/2015 03:21 PM, Michael S. Tsirkin wrote:
> On Wed, Oct 28, 2015 at 11:13:39AM +0800, Jason Wang wrote:
>>
>> On 10/27/2015 04:38 PM, Michael S. Tsirkin wrote:
>>> On Mon, Oct 26, 2015 at 10:52:47AM -0700, Ravi Kerur wrote:
>>>> Ported earlier pat
On 10/27/2015 04:38 PM, Michael S. Tsirkin wrote:
> On Mon, Oct 26, 2015 at 10:52:47AM -0700, Ravi Kerur wrote:
>> Ported earlier patch from Jason Wang (dated 12/26/2014).
>>
>> This patch tries to reduce the number of MSIX irqs required for
>> virtio-net by sharin
On 10/27/2015 05:05 PM, Michael S. Tsirkin wrote:
> On Tue, Oct 27, 2015 at 10:58:25AM +0800, Jason Wang wrote:
>>
>> On 10/26/2015 04:30 PM, Michael S. Tsirkin wrote:
>>> On Mon, Oct 26, 2015 at 02:53:38PM +0800, Jason Wang wrote:
>>>> On 10/26/201
On 10/26/2015 02:09 PM, Michael S. Tsirkin wrote:
> On Mon, Oct 26, 2015 at 11:15:57AM +0800, Jason Wang wrote:
>>
>> On 10/23/2015 09:37 PM, Michael S. Tsirkin wrote:
>>> On Fri, Oct 23, 2015 at 12:57:05AM -0400, Jason Wang wrote:
>>>> We don't h
On 10/27/2015 01:52 AM, Ravi Kerur wrote:
> Ported earlier patch from Jason Wang (dated 12/26/2014).
>
> This patch tries to reduce the number of MSIX irqs required for
> virtio-net by sharing a MSIX irq for each TX/RX queue pair through
> channels. If transport support chan
On 10/26/2015 04:30 PM, Michael S. Tsirkin wrote:
> On Mon, Oct 26, 2015 at 02:53:38PM +0800, Jason Wang wrote:
>>
>> On 10/26/2015 02:09 PM, Michael S. Tsirkin wrote:
>>> On Mon, Oct 26, 2015 at 11:15:57AM +0800, Jason Wang wrote:
>>>> On 10/23/201
On 10/23/2015 09:37 PM, Michael S. Tsirkin wrote:
> On Fri, Oct 23, 2015 at 12:57:05AM -0400, Jason Wang wrote:
>> We don't have fraglist support in TAP_FEATURES. This will lead
>> software segmentation of gro skb with frag list. Fixes by having
>> frag list su
On 10/22/2015 04:38 PM, Michael S. Tsirkin wrote:
> On Thu, Oct 22, 2015 at 01:27:28AM -0400, Jason Wang wrote:
>> > This path introduces a helper which can give a hint for whether or not
>> > there's a work queued in the work list.
>> >
>> > Signed-
On 10/22/2015 05:33 PM, Michael S. Tsirkin wrote:
> On Thu, Oct 22, 2015 at 01:27:29AM -0400, Jason Wang wrote:
>> This patch tries to poll for new added tx buffer for a while at the
>> end of tx processing. The maximum time spent on polling were limited
>> through a modul
On 10/23/2015 12:16 AM, Michael S. Tsirkin wrote:
> On Thu, Oct 22, 2015 at 08:46:33AM -0700, Rick Jones wrote:
>> On 10/22/2015 02:33 AM, Michael S. Tsirkin wrote:
>>> On Thu, Oct 22, 2015 at 01:27:29AM -0400, Jason Wang wrote:
>>>> This patch tries to poll for n
("macvtap: simplify usage of tap_features")
Cc: Vlad Yasevich <vyase...@redhat.com>
Cc: Michael S. Tsirkin <m...@redhat.com>
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
drivers/net/macvtap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers
.
busyloop_timeout = 50 gives us following improvement on TCP_RR test:
size/session/+thu%/+normalize%
1/ 1/ +5%/ -20%
1/50/ +17%/ +3%
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
drivers/vhost/net.c | 19 +++
1 file changed, 19 insertions(+)
diff
This path introduces a helper which can give a hint for whether or not
there's a work queued in the work list.
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
drivers/vhost/vhost.c | 6 ++
drivers/vhost/vhost.h | 1 +
2 files changed, 7 insertions(+)
diff --git a/drivers/vhost/vho
On 08/28/2015 08:25 PM, Vlad Yasevich wrote:
On 08/27/2015 10:42 PM, Jason Wang wrote:
On 08/27/2015 06:43 PM, Michael S. Tsirkin wrote:
On Wed, Aug 26, 2015 at 01:45:30PM +0800, Jason Wang wrote:
On 08/26/2015 12:32 AM, Vlad Yasevich wrote:
On 08/25/2015 07:30 AM, Jason Wang
On 08/27/2015 06:43 PM, Michael S. Tsirkin wrote:
On Wed, Aug 26, 2015 at 01:45:30PM +0800, Jason Wang wrote:
On 08/26/2015 12:32 AM, Vlad Yasevich wrote:
On 08/25/2015 07:30 AM, Jason Wang wrote:
On 08/25/2015 06:17 PM, Michael S. Tsirkin wrote:
On Mon, Aug 24, 2015 at 04:33:12PM +0800
. Tsirkin m...@redhat.com
Signed-off-by: Jason Wang jasow...@redhat.com
---
drivers/net/virtio_net.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 53f5660..c006ae4 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers
On 08/26/2015 12:32 AM, Vlad Yasevich wrote:
On 08/25/2015 07:30 AM, Jason Wang wrote:
On 08/25/2015 06:17 PM, Michael S. Tsirkin wrote:
On Mon, Aug 24, 2015 at 04:33:12PM +0800, Jason Wang wrote:
For macvlan, switch to use IFF_NO_QUEUE instead of tx_queue_len = 0.
For macvtap, after
On 08/25/2015 06:17 PM, Michael S. Tsirkin wrote:
On Mon, Aug 24, 2015 at 04:33:12PM +0800, Jason Wang wrote:
For macvlan, switch to use IFF_NO_QUEUE instead of tx_queue_len = 0.
For macvtap, after commit 6acf54f1cf0a6747bac9fea26f34cfc5a9029523
(macvtap: Add support of packet capture
...@redhat.com
Signed-off-by: Jason Wang jasow...@redhat.com
---
drivers/net/macvlan.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index 47da435..09d8718 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -1056,7
On 08/19/2015 07:54 PM, Victor Kaplansky wrote:
On Mon, Aug 17, 2015 at 10:43:46AM +0800, Jason Wang wrote:
On 08/16/2015 09:42 PM, Victor Kaplansky wrote:
Clarify general description of the mac, status and
max_virtqueue_pairs fields. Specifically, the old description is
vague about
On 08/19/2015 07:31 PM, Victor Kaplansky wrote:
On Mon, Aug 17, 2015 at 11:07:15AM +0800, Jason Wang wrote:
On 08/16/2015 09:42 PM, Victor Kaplansky wrote:
@@ -3128,6 +3134,7 @@ struct virtio_net_config {
u8 mac[6];
le16 status;
le16 max_virtqueue_pairs
On 08/16/2015 09:42 PM, Victor Kaplansky wrote:
Sometimes it is essential for libvirt to be able to configure MTU
on guest's NICs to a value different from 1500.
The change adds a new field to configuration area of network
devices. It will be used to pass initial MTU from the device to
the
On 08/16/2015 09:42 PM, Victor Kaplansky wrote:
Clarify general description of the mac, status and
max_virtqueue_pairs fields. Specifically, the old description is
vague about configuration layout and fields offsets when some of
the fields are non valid.
Also clarify that validity of two
only get what we can handle.
Cc: Michael S. Tsirkin m...@redhat.com
Signed-off-by: Jason Wang jasow...@redhat.com
---
The patch is needed for stable.
---
drivers/net/virtio_net.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/virtio_net.c b/drivers/net
only get what we can handle.
Cc: Michael S. Tsirkin m...@redhat.com
Signed-off-by: Jason Wang jasow...@redhat.com
---
- Change from V1: coding style fixes.
- The patch is needed for stable.
---
drivers/net/virtio_net.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers
On 08/04/2015 07:11 PM, Sergei Shtylyov wrote:
Hello.
On 8/4/2015 12:55 PM, Jason Wang wrote:
virtio declares support for NETIF_F_FRAGLIST, but assumes
that there are at most MAX_SKB_FRAGS + 2 fragments which isn't
always true with a fraglist.
A longer fraglist in the skb will make
cc netdev for more experts
On 07/28/2015 04:53 PM, Zhangjie (HZ) wrote:
Hi,
I generate a skb as follows:
It has a linear data region, 17 frags and the last fragment is in
skb_shinfo(skb)-frag_list.
Before this skb is sent to driver, dev_hard_start_xmit() will segment
it first(skb has
On 06/29/2015 12:50 PM, Jason Wang wrote:
On 06/18/2015 06:20 PM, Michael S. Tsirkin wrote:
Needs more testing. Anyone see anything wrong with this?
Signed-off-by: Michael S. Tsirkin m...@redhat.com
---
drivers/net/macvtap.c | 2 +-
drivers/net/tun.c | 2 +-
2 files changed, 2
On 06/18/2015 06:20 PM, Michael S. Tsirkin wrote:
Needs more testing. Anyone see anything wrong with this?
Signed-off-by: Michael S. Tsirkin m...@redhat.com
---
drivers/net/macvtap.c | 2 +-
drivers/net/tun.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git
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