Move queue_index from virtio_net_config to virtqueue. This is
needed to figure out the queue number of the vq in the 'done'
handler of the device.
Signed-off-by: krkum...@in.ibm.com
---
drivers/virtio/virtio_pci.c | 10 +++---
include/linux/virtio.h |1 +
2 files changed, 4
Introduce VIRTIO_NET_F_MULTIQUEUE.
Signed-off-by: krkum...@in.ibm.com
---
include/linux/virtio_net.h |1 +
1 file changed, 1 insertion(+)
diff -ruNp org/include/linux/virtio_net.h new/include/linux/virtio_net.h
--- org/include/linux/virtio_net.h 2011-10-12 10:16:46.0 +0530
+++
This patch series resurrects the earlier multiple TX/RX queues
functionality for virtio_net, and addresses the issues pointed
out. It also includes an API to share irq's, f.e. amongst the
TX vqs.
I plan to run TCP/UDP STREAM and RR tests for local-host and
local-remote, and send the results in
Changes for multiqueue vhost_net driver.
Signed-off-by: krkum...@in.ibm.com
---
drivers/vhost/net.c | 253 +---
drivers/vhost/vhost.c | 225 ---
drivers/vhost/vhost.h | 26 +++-
3 files changed, 340 insertions(+), 164
Changes for multiqueue virtio_net driver.
Signed-off-by: krkum...@in.ibm.com
---
drivers/net/virtio_net.c | 688 ---
include/linux/virtio_net.h |2
2 files changed, 481 insertions(+), 209 deletions(-)
diff -ruNp org/drivers/net/virtio_net.c
Convert virtio_net driver to use find_vqs_irq(). The TX vq's
share a single irq, while the RX vq's have individual irq's.
The skb_xmit_done handler also checks if any work is required.
Signed-off-by: krkum...@in.ibm.com
---
drivers/net/virtio_net.c | 29 ++---
1 file
Implement find_vqs_irq() to reduce number of vectors. It can
be used to specify which vq's need their own irqs, and which
can share irqs with other vq's.
Signed-off-by: krkum...@in.ibm.com
---
drivers/virtio/virtio_pci.c | 108
include/linux/virtio_config.h |
Sasha Levin levinsasha...@gmail.com wrote on 11/12/2011 03:32:04 AM:
I'm seeing this BUG() sometimes when running it using a small patch I
did for KVM tool:
[1.281531] Call Trace:
[1.281531] [8138a0e5] ? free_rq_sq+0x2c/0xce
[1.281531] [8138bb63] ?
74627883 (5.6) 12731.8 12119.8 (-4.8)
128 73387800 (6.2) 21331.7 21094.7 (-1.1)
Summary:BW: 4.6%SD: -1.5%
Signed-off-by: Krishna Kumar krkum...@in.ibm.com
---
--
To unsubscribe from this list: send
Add a per-txq field that can (optionally) be set by participating
drivers to indicate when to restart tx.
Signed-off-by: Krishna Kumar krkum...@in.ibm.com
---
include/linux/netdevice.h |1 +
1 file changed, 1 insertion(+)
diff -ruNp org/include/linux/netdevice.h new/include/linux
Introduce virtqueue_get_capacity() to help bail out of transmit
path early. Also remove notification when we run out of space (I
am not sure if this should be under a feature bit).
Signed-off-by: Krishna Kumar krkum...@in.ibm.com
---
drivers/virtio/virtio_ring.c | 13 -
include
queues, and hence
the frozen/stopped check can be avoided.
Signed-off-by: Krishna Kumar krkum...@in.ibm.com
---
net/sched/sch_generic.c | 23 ++-
1 file changed, 18 insertions(+), 5 deletions(-)
diff -ruNp org/net/sched/sch_generic.c new/net/sched/sch_generic.c
--- org/net/sched
that removes most error
checks, does not drop packets but instead returns EBUSY if
there is no space to transmit. It also sets when to restart
xmits in future.
Signed-off-by: Krishna Kumar krkum...@in.ibm.com
---
drivers/net/virtio_net.c | 70 ++---
1 file
Krishna Kumar2/India/IBM@IBMIN wrote on 05/04/2011 07:32:58 PM:
[PATCH 0/4] [RFC] virtio-net: Improve small packet performance
I found having tabs in the table made the results a little
difficult to understand. Converting the same to spaces, hope
it is clear this time.
feedback. I am travelling a bit in the next
few days but will respond at the earliest.
Signed-off-by: Krishna Kumar krkum...@in.ibm.com
---
--
To unsubscribe from this list: send the line unsubscribe kvm in
the body of a message to majord...@vger.kernel.org
More majordomo info at http
Move queue_index from virtio_pci_vq_info to virtqueue. This
allows callback handlers to figure out the queue number for
the vq that needs attention.
Signed-off-by: Krishna Kumar krkum...@in.ibm.com
---
drivers/virtio/virtio_pci.c | 10 +++---
include/linux/virtio.h |1 +
2 files
Implement mq virtio-net driver.
Though struct virtio_net_config changes, it works with the old
qemu since the last element is not accessed unless qemu sets
VIRTIO_NET_F_MULTIQUEUE.
Signed-off-by: Krishna Kumar krkum...@in.ibm.com
---
drivers/net/virtio_net.c | 573
.
The number of vhost threads is = #txqs. Threads handle more
than one txq when #txqs is more than MAX_VHOST_THREADS (4).
The same thread handles both RX and TX - tested with tap/bridge
so far (TBD: some changes are needed in macvtap to support the
same).
Signed-off-by: Krishna Kumar krkum...@in.ibm.com
diff -ruNp org/hw/vhost.c new/hw/vhost.c
--- org/hw/vhost.c 2011-04-05 14:15:18.0 +0530
+++ new/hw/vhost.c 2011-04-05 14:15:18.0 +0530
@@ -581,7 +581,7 @@ static void vhost_virtqueue_cleanup(stru
0, virtio_queue_get_desc_size(vdev, idx));
}
and vhost was done without any issues.
Some early TCP/UDP test results are at the bottom of this
post, I plan to submit more test results in the coming days.
Please review and provide feedback on what can improve.
Thanks!
Signed-off-by: Krishna Kumar krkum...@in.ibm.com
---
Test configuration
Move queue_index from virtio_pci_vq_info to virtqueue. This
allows callback handlers to figure out the queue number for
the vq that needs attention.
Signed-off-by: Krishna Kumar krkum...@in.ibm.com
---
drivers/virtio/virtio_pci.c | 10 +++---
include/linux/virtio.h |1 +
2 files
-by: Krishna Kumar krkum...@in.ibm.com
---
drivers/net/virtio_net.c | 543 ---
include/linux/virtio_net.h |6
2 files changed, 386 insertions(+), 163 deletions(-)
diff -ruNp org/include/linux/virtio_net.h new/include/linux/virtio_net.h
--- org/include/linux
in vhost_attach_cgroups* to avoid
checkpatch errors.
Signed-off-by: Krishna Kumar krkum...@in.ibm.com
---
drivers/vhost/net.c | 295 ++--
drivers/vhost/vhost.c | 225 +++---
drivers/vhost/vhost.h | 39 -
3 files changed, 378
-52.08
96 40.21-3.16-24.53 -39.92 -52.97
128 36.33-33.19 -43.66 -5.68-20.49
BW: 49.3%, CPU/RCPU: 15.5%,-8.2%, SD/RSD: -22.2%,-37.0%
Signed-off-by: Krishna Kumar krkum...@in.ibm.com
Move queue_index from virtio_pci_vq_info to virtqueue. This
allows callback handlers to figure out the queue number for
the vq that needs attention.
Signed-off-by: Krishna Kumar krkum...@in.ibm.com
---
drivers/virtio/virtio_pci.c | 10 +++---
include/linux/virtio.h |1 +
2
-off-by: Krishna Kumar krkum...@in.ibm.com
---
drivers/net/virtio_net.c | 234 ++-
include/linux/virtio_net.h |6
2 files changed, 185 insertions(+), 55 deletions(-)
diff -ruNp org/include/linux/virtio_net.h
new.dynamic.optimize_vhost/include/linux
the guest,
that is recognized and handled such that vhost[0] processes
both RX and TX. This can change dynamically. vhost_poll
has a new element - find_vq(), which allows optimizing some
code for cases where numtxqs=1 or a packet on vhost[0]
needs processing.
Signed-off-by: Krishna Kumar krkum
Changes in qemu to support mq TX.
Signed-off-by: Krishna Kumar krkum...@in.ibm.com
---
hw/vhost.c |7 --
hw/vhost.h |2 -
hw/vhost_net.c | 16 +
hw/vhost_net.h |2 -
hw/virtio-net.c | 53 --
hw/virtio
.
Review/feedback appreciated.
Signed-off-by: Krishna Kumar krkum...@in.ibm.com
---
--
To unsubscribe from this list: send the line unsubscribe kvm in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Move queue_index from virtio_pci_vq_info to virtqueue. This
allows callback handlers to figure out the queue number for
the vq that needs attention.
Signed-off-by: Krishna Kumar krkum...@in.ibm.com
---
drivers/virtio/virtio_pci.c | 10 +++---
include/linux/virtio.h |1 +
2 files
as numtxqs=1.
Besides changing handle_tx to use 'vq', this patch also
changes handle_rx to take vq as parameter. The mq RX
patch requires this change, but till then it is consistent
(and less confusing) to make the interfaces for handling
rx and tx similar.
Signed-off-by: Krishna Kumar krkum
Implement mq virtio-net driver.
Though struct virtio_net_config changes, it works with old
qemu's since the last element is not accessed, unless qemu
sets VIRTIO_NET_F_NUMTXQS.
Signed-off-by: Krishna Kumar krkum...@in.ibm.com
---
drivers/net/virtio_net.c | 213
Changes in qemu to support mq TX.
Signed-off-by: Krishna Kumar krkum...@in.ibm.com
---
hw/vhost.c |8 ++-
hw/vhost.h |2
hw/vhost_net.c | 16 +--
hw/vhost_net.h |2
hw/virtio-net.c | 97 ++
hw/virtio-net.h |2
hw
From: Krishna Kumar krkum...@in.ibm.com
Missed a boundary value check in vhost_set_vring. The host panics if
idx == nvqs is used in ioctl commands in vhost_virtqueue_init.
Signed-off-by: Krishna Kumar krkum...@in.ibm.com
---
drivers/vhost/vhost.c |2 +-
1 file changed, 1 insertion(+), 1
34 matches
Mail list logo
