similar to: virtio-net: tx queue was stopped

On 2015/3/15 16:40, Michael S. Tsirkin wrote: > On Sun, Mar 15, 2015 at 02:50:27PM +0800, Linhaifeng wrote: >> Hi,Michael >> >> I had tested the start_xmit function by the follow code found that the tx queue's state is stopped and can't send any packets anymore. > > Why don't you Cc all maintainers on this email? > Pls check the file MAINTAINERS for the

On 2015/3/15 16:40, Michael S. Tsirkin wrote: > On Sun, Mar 15, 2015 at 02:50:27PM +0800, Linhaifeng wrote: >> Hi,Michael >> >> I had tested the start_xmit function by the follow code found that the tx queue's state is stopped and can't send any packets anymore. > > Why don't you Cc all maintainers on this email? > Pls check the file MAINTAINERS for the

On Mon, Mar 16, 2015 at 05:24:07PM +0800, Linhaifeng wrote: > > > On 2015/3/15 16:40, Michael S. Tsirkin wrote: > > On Sun, Mar 15, 2015 at 02:50:27PM +0800, Linhaifeng wrote: > >> Hi,Michael > >> > >> I had tested the start_xmit function by the follow code found that the tx queue's state is stopped and can't send any packets anymore. > >

On Mon, Mar 16, 2015 at 05:24:07PM +0800, Linhaifeng wrote: > > > On 2015/3/15 16:40, Michael S. Tsirkin wrote: > > On Sun, Mar 15, 2015 at 02:50:27PM +0800, Linhaifeng wrote: > >> Hi,Michael > >> > >> I had tested the start_xmit function by the follow code found that the tx queue's state is stopped and can't send any packets anymore. > >

OK, here's a new attempt to use the new capacity api. I also added more comments to clarify the logic. Hope this is more readable. Let me know pls. This is on top of the patches applied by Rusty. Note: there are now actually 2 calls to fee_old_xmit_skbs on data path so instead of passing flag '2' to the second one I thought we can just make each call free up at least 1 skb. This

OK, here's a new attempt to use the new capacity api. I also added more comments to clarify the logic. Hope this is more readable. Let me know pls. This is on top of the patches applied by Rusty. Note: there are now actually 2 calls to fee_old_xmit_skbs on data path so instead of passing flag '2' to the second one I thought we can just make each call free up at least 1 skb. This

Hi all: This series is an update version of multiqueue virtio-net driver based on Krishna Kumar's work to let virtio-net use multiple rx/tx queues to do the packets reception and transmission. Please review and comments. A protype implementation of qemu-kvm support could by found in git://github.com/jasowang/qemu-kvm-mq.git. To start a guest with two queues, you could specify the queues

Hi all: This series is an update version of multiqueue virtio-net driver based on Krishna Kumar's work to let virtio-net use multiple rx/tx queues to do the packets reception and transmission. Please review and comments. A protype implementation of qemu-kvm support could by found in git://github.com/jasowang/qemu-kvm-mq.git. To start a guest with two queues, you could specify the queues

Hi all: This series is an update version of multiqueue virtio-net driver based on Krishna Kumar's work to let virtio-net use multiple rx/tx queues to do the packets reception and transmission. Please review and comments. A protype implementation of qemu-kvm support could by found in git://github.com/jasowang/qemu-kvm-mq.git. To start a guest with two queues, you could specify the queues

Hi all: This series is an update version of multiqueue virtio-net driver based on Krishna Kumar's work to let virtio-net use multiple rx/tx queues to do the packets reception and transmission. Please review and comments. A protype implementation of qemu-kvm support could by found in git://github.com/jasowang/qemu-kvm-mq.git. To start a guest with two queues, you could specify the queues

Hi all: This series is an update version of multiqueue virtio-net driver based on Krishna Kumar's work to let virtio-net use multiple rx/tx queues to do the packets reception and transmission. Please review and comments. A protype implementation of qemu-kvm support could by found in git://github.com/jasowang/qemu-kvm-mq.git. To start a guest with two queues, you could specify the queues

Hi all: This series is an update version of multiqueue virtio-net driver based on Krishna Kumar's work to let virtio-net use multiple rx/tx queues to do the packets reception and transmission. Please review and comments. A protype implementation of qemu-kvm support could by found in git://github.com/jasowang/qemu-kvm-mq.git. To start a guest with two queues, you could specify the queues

OK, here's a new attempt to use the new capacity api. I also added more comments to clarify the logic. Hope this is more readable. Let me know pls. This is on top of the patches applied by Rusty. Warning: untested. Posting now to give people chance to comment on the API. Changes from v1: - fix comment in patch 2 to correct confusion noted by Rusty - rewrite patch 3 along the lines

OK, here's a new attempt to use the new capacity api. I also added more comments to clarify the logic. Hope this is more readable. Let me know pls. This is on top of the patches applied by Rusty. Warning: untested. Posting now to give people chance to comment on the API. Changes from v1: - fix comment in patch 2 to correct confusion noted by Rusty - rewrite patch 3 along the lines

Hi all: This series is an update version (hope the final version) of multiqueue (VIRTIO_NET_F_MQ) support in virtio-net driver. All previous comments were addressed, the work were based on Krishna Kumar's work to let virtio-net use multiple rx/tx queues to do the packets reception and transmission. Performance test show the aggregate latency were increased greately but may get some regression

Hi all: This series is an update version (hope the final version) of multiqueue (VIRTIO_NET_F_MQ) support in virtio-net driver. All previous comments were addressed, the work were based on Krishna Kumar's work to let virtio-net use multiple rx/tx queues to do the packets reception and transmission. Performance test show the aggregate latency were increased greately but may get some regression

On newer hosts that support delayed tx interrupts, we probably don't have much to gain from orphaning packets early. Based on patch by Jason Wang. Note: this will likely degrade performance for hosts without event idx support. Various fallback options are available, including orphaning conditionally. Testing TBD. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> ---

On newer hosts that support delayed tx interrupts, we probably don't have much to gain from orphaning packets early. Based on patch by Jason Wang. Note: this will likely degrade performance for hosts without event idx support. Various fallback options are available, including orphaning conditionally. Testing TBD. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> ---

Hi all: This series is an update version of multiqueue virtio-net driver based on Krishna Kumar's work to let virtio-net use multiple rx/tx queues to do the packets reception and transmission. Please review and comments. Changes from v5: - Align the implementation with the RFC spec update v4 - Switch the mode between single mode and multiqueue mode without reset - Remove the 256 limitation

Hi all: This series is an update version of multiqueue virtio-net driver based on Krishna Kumar's work to let virtio-net use multiple rx/tx queues to do the packets reception and transmission. Please review and comments. Changes from v5: - Align the implementation with the RFC spec update v4 - Switch the mode between single mode and multiqueue mode without reset - Remove the 256 limitation