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From: Yuanhan Liu <yuanhan.liu@linux.intel.com>
To: Jianfeng Tan <jianfeng.tan@intel.com>
Cc: dev@dpdk.org, david.marchand@6wind.com
Subject: Re: [dpdk-dev] [PATCH 2/5] net/virtio-user: add rxq interrupt mode support
Date: Fri, 17 Mar 2017 14:47:57 +0800	[thread overview]
Message-ID: <20170317064757.GG18844@yliu-dev.sh.intel.com> (raw)
In-Reply-To: <1488563803-87754-3-git-send-email-jianfeng.tan@intel.com>

On Fri, Mar 03, 2017 at 05:56:40PM +0000, Jianfeng Tan wrote:
> Signed-off-by: Jianfeng Tan <jianfeng.tan@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

  reply	other threads:[~2017-03-17  6:49 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-03 17:56 [dpdk-dev] [PATCH 0/5] add LSC and Rxq interrupt for virtio-user Jianfeng Tan
2017-03-03 17:56 ` [dpdk-dev] [PATCH 1/5] eal/linux: add interrupt type for vdev Jianfeng Tan
2017-03-03 17:56 ` [dpdk-dev] [PATCH 2/5] net/virtio-user: add rxq interrupt mode support Jianfeng Tan
2017-03-17  6:47   ` Yuanhan Liu [this message]
2017-03-28  1:33     ` Tan, Jianfeng
2017-03-03 17:56 ` [dpdk-dev] [PATCH 3/5] net/virtio-user: support to report net status Jianfeng Tan
2017-03-17  6:54   ` Yuanhan Liu
2017-03-27  7:46     ` Tan, Jianfeng
2017-03-29  6:33       ` Yuanhan Liu
2017-03-29  7:07         ` Tan, Jianfeng
2017-03-29  7:14           ` Yuanhan Liu
2017-03-29  7:48             ` Tan, Jianfeng
2017-03-29  8:00               ` Yuanhan Liu
2017-03-29  8:33                 ` Tan, Jianfeng
2017-03-29  8:36                   ` Yuanhan Liu
2017-03-30  3:14                     ` Tan, Jianfeng
2017-03-03 17:56 ` [dpdk-dev] [PATCH 4/5] net/virtio-user: add lsc support with vhost-user adapter Jianfeng Tan
2017-03-17  8:29   ` Yuanhan Liu
2017-03-27  1:51     ` Tan, Jianfeng
2017-03-03 17:56 ` [dpdk-dev] [PATCH 5/5] net/virtio-user: add lsc support with vhost-kernel adapter Jianfeng Tan
2017-03-28  8:21 ` [dpdk-dev] [PATCH v2 0/5] add LSC and Rxq interrupt for virtio-user Jianfeng Tan
2017-03-28  8:21   ` [dpdk-dev] [PATCH v2 1/5] eal/linux: add interrupt type for vdev Jianfeng Tan
2017-03-28  8:21   ` [dpdk-dev] [PATCH v2 2/5] net/virtio: add interrupt configure " Jianfeng Tan
2017-03-29  6:27     ` Yuanhan Liu
2017-03-29  7:03       ` Tan, Jianfeng
2017-03-29  7:09         ` Yuanhan Liu
2017-03-29  7:27           ` Tan, Jianfeng
2017-03-29  7:30             ` Yuanhan Liu
2017-03-28  8:21   ` [dpdk-dev] [PATCH v2 3/5] net/virtio-user: add rxq interrupt mode support Jianfeng Tan
2017-03-28  8:21   ` [dpdk-dev] [PATCH v2 4/5] net/virtio-user: support to report net status Jianfeng Tan
2017-03-28  8:21   ` [dpdk-dev] [PATCH v2 5/5] net/virtio-user: add lsc support Jianfeng Tan
2017-03-31 19:44 ` [dpdk-dev] [PATCH v3 0/5] add LSC and Rxq interrupt for virtio-user Jianfeng Tan
2017-03-31 19:44   ` [dpdk-dev] [PATCH v3 1/5] eal/linux: add interrupt type for vdev Jianfeng Tan
2017-03-31 19:44   ` [dpdk-dev] [PATCH v3 2/5] net/virtio-user: move eventfd open/close into init/uninit Jianfeng Tan
2017-03-31 19:44   ` [dpdk-dev] [PATCH v3 3/5] net/virtio-user: add rxq interrupt mode support Jianfeng Tan
2017-03-31 19:44   ` [dpdk-dev] [PATCH v3 4/5] net/virtio-user: support to report net status Jianfeng Tan
2017-03-31 19:44   ` [dpdk-dev] [PATCH v3 5/5] net/virtio-user: add lsc support Jianfeng Tan
2017-04-01  5:13     ` Yuanhan Liu

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