[dpdk-dev] [PATCH 2/5] net/virtio-user: add rxq interrupt mode support
Yuanhan Liu
yuanhan.liu at linux.intel.com
Fri Mar 17 07:47:57 CET 2017
On Fri, Mar 03, 2017 at 05:56:40PM +0000, Jianfeng Tan wrote:
> Signed-off-by: Jianfeng Tan <jianfeng.tan at intel.com>
I don't see a single word to explain how this patch works :/
> ---
> drivers/net/virtio/virtio_ethdev.c | 17 ++++++++++++++--
> drivers/net/virtio/virtio_user/virtio_user_dev.c | 25 +++++++++++++++++++++++-
> drivers/net/virtio/virtio_user/virtio_user_dev.h | 2 +-
> drivers/net/virtio/virtio_user_ethdev.c | 12 +++++++++++-
> 4 files changed, 51 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
> index 4dc03b9..5d80d1a 100644
> --- a/drivers/net/virtio/virtio_ethdev.c
> +++ b/drivers/net/virtio/virtio_ethdev.c
> @@ -1264,6 +1264,10 @@ virtio_configure_intr(struct rte_eth_dev *dev)
> {
> struct virtio_hw *hw = dev->data->dev_private;
>
> +
> +#ifdef RTE_VIRTIO_USER
> + if (!hw->virtio_user_dev) {
> +#endif
No need to put the #ifdef block here. virtio_user_dev is defined even
when RTE_VIRTIO_USER is not configured.
...
> + vtpci_reinit_complete(hw);
> +
> if (eth_dev->data->dev_conf.intr_conf.rxq) {
> if (virtio_configure_intr(eth_dev) < 0) {
> PMD_INIT_LOG(ERR, "failed to configure interrupt");
> @@ -1416,8 +1431,6 @@ virtio_init_device(struct rte_eth_dev *eth_dev, uint64_t req_features)
> }
> }
>
> - vtpci_reinit_complete(hw);
Hmm, why ...? Such stealthy change definitely need an explanation.
And it's more likely it needs a single patch.
--yliu
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