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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 3/5] net/virtio-user: support to report net status
Date: Fri, 17 Mar 2017 14:54:45 +0800	[thread overview]
Message-ID: <20170317065445.GH18844@yliu-dev.sh.intel.com> (raw)
In-Reply-To: <1488563803-87754-4-git-send-email-jianfeng.tan@intel.com>

On Fri, Mar 03, 2017 at 05:56:41PM +0000, Jianfeng Tan wrote:
> Signed-off-by: Jianfeng Tan <jianfeng.tan@intel.com>

Yet again, not a single work on explanation.

> ---
>  drivers/net/virtio/virtio_user/virtio_user_dev.c |  1 +
>  drivers/net/virtio/virtio_user_ethdev.c          | 13 +++++++------
>  2 files changed, 8 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/net/virtio/virtio_user/virtio_user_dev.c b/drivers/net/virtio/virtio_user/virtio_user_dev.c
> index 9777d6b..cc6f557 100644
> --- a/drivers/net/virtio/virtio_user/virtio_user_dev.c
> +++ b/drivers/net/virtio/virtio_user/virtio_user_dev.c
> @@ -176,6 +176,7 @@ virtio_user_start_device(struct virtio_user_dev *dev, uint8_t portid)
>  	features &= ~(1ull << VIRTIO_NET_F_MAC);
>  	/* Strip VIRTIO_NET_F_CTRL_VQ, as devices do not really need to know */
>  	features &= ~(1ull << VIRTIO_NET_F_CTRL_VQ);
> +	features &= ~(1ull << VIRTIO_NET_F_STATUS);
>  	ret = dev->ops->send_request(dev, VHOST_USER_SET_FEATURES, &features);
>  	if (ret < 0)
>  		goto error;
> diff --git a/drivers/net/virtio/virtio_user_ethdev.c b/drivers/net/virtio/virtio_user_ethdev.c
> index fa79419..fbdd0a8 100644
> --- a/drivers/net/virtio/virtio_user_ethdev.c
> +++ b/drivers/net/virtio/virtio_user_ethdev.c
> @@ -121,7 +121,8 @@ virtio_user_get_features(struct virtio_hw *hw)
>  	struct virtio_user_dev *dev = virtio_user_get_dev(hw);
>  
>  	/* unmask feature bits defined in vhost user protocol */
> -	return dev->device_features & VIRTIO_PMD_SUPPORTED_GUEST_FEATURES;
> +	return (dev->device_features | (1 << VIRTIO_NET_F_STATUS))
> +		& VIRTIO_PMD_SUPPORTED_GUEST_FEATURES;

Why not handle the features at virtio_user_dev_init()?

>  }
>  
>  static void
> @@ -129,23 +130,23 @@ virtio_user_set_features(struct virtio_hw *hw, uint64_t features)
>  {
>  	struct virtio_user_dev *dev = virtio_user_get_dev(hw);
>  
> -	dev->features = features & dev->device_features;
> +	dev->features = features;
>  }
>  
>  static uint8_t
>  virtio_user_get_isr(struct virtio_hw *hw __rte_unused)
>  {
> -	/* When config interrupt happens, driver calls this function to query
> -	 * what kinds of change happen. Interrupt mode not supported for now.
> +	/* rxq interrupts and config interrupt are separated in virtio-user,
> +	 * here we only report config change.
>  	 */
> -	return 0;
> +	return VIRTIO_PCI_ISR_CONFIG;
>  }
>  
>  static uint16_t
>  virtio_user_set_config_irq(struct virtio_hw *hw __rte_unused,
>  		    uint16_t vec __rte_unused)
>  {
> -	return VIRTIO_MSI_NO_VECTOR;
> +	return 0;

And the above two changes have something to do with this patch (support
to report net statu)?

	--yliu

  reply	other threads:[~2017-03-17  6:56 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
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 [this message]
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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