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From: Tiwei Bie <tiwei.bie@intel.com>
To: Maxime Coquelin <maxime.coquelin@redhat.com>
Cc: zhihong.wang@intel.com, amorenoz@redhat.com,
	xiao.w.wang@intel.com, dev@dpdk.org, jfreimann@redhat.com,
	stable@dpdk.org
Subject: Re: [dpdk-dev] [PATCH 11/15] net/virtio: add vDPA op to stop and close the device
Date: Mon, 2 Sep 2019 15:07:31 +0800	[thread overview]
Message-ID: <20190902070731.GA16025@___> (raw)
In-Reply-To: <20190829080000.20806-12-maxime.coquelin@redhat.com>

On Thu, Aug 29, 2019 at 09:59:56AM +0200, Maxime Coquelin wrote:
> This patch implements the vDPA .dev_close() callback.
> 
> Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
> ---
>  drivers/net/virtio/virtio_vdpa.c | 52 ++++++++++++++++++++++++++++++++
>  1 file changed, 52 insertions(+)
> 
> diff --git a/drivers/net/virtio/virtio_vdpa.c b/drivers/net/virtio/virtio_vdpa.c
> index 13b4dd07d..691844906 100644
> --- a/drivers/net/virtio/virtio_vdpa.c
> +++ b/drivers/net/virtio/virtio_vdpa.c
> @@ -436,6 +436,33 @@ virtio_vdpa_start(struct virtio_vdpa_device *dev)
>  	return ret;
>  }
>  
> +static void
> +virtio_vdpa_stop(struct virtio_vdpa_device *dev)
> +{
> +	struct virtio_hw *hw = &dev->hw;
> +	uint32_t i, nr_vring;
> +	int vid = dev->vid;
> +	struct rte_vhost_vring vr;
> +	uint16_t last_used_idx, last_avail_idx;
> +
> +	nr_vring = rte_vhost_get_vring_num(vid);
> +
> +	vtpci_reset(hw);
> +
> +	for (i = 0; i < nr_vring; i++) {
> +		rte_vhost_get_vhost_vring(vid, i, &vr);
> +
> +		last_used_idx = vr.used->idx;
> +		last_avail_idx = vr.avail->idx;

This only works in split ring.

Regards,
Tiwei

> +
> +		rte_vhost_set_vring_base(vid, i, last_avail_idx,
> +				last_used_idx);
> +	}
> +
> +	rte_free(dev->vqs);
> +	dev->vqs = NULL;
> +}
> +

  reply	other threads:[~2019-09-02  7:10 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-29  7:59 [dpdk-dev] [PATCH 00/15] Introduce Virtio vDPA driver Maxime Coquelin
2019-08-29  7:59 ` [dpdk-dev] [PATCH 01/15] vhost: remove vhost kernel header inclusion Maxime Coquelin
2019-09-02  6:03   ` Tiwei Bie
2019-09-03  7:24     ` Maxime Coquelin
2019-08-29  7:59 ` [dpdk-dev] [PATCH 02/15] vhost: configure vDPA as soon as the device is ready Maxime Coquelin
2019-09-02  8:34   ` Ye Xiaolong
2019-09-02  9:02     ` Wang, Xiao W
2019-09-03  7:34       ` Maxime Coquelin
2019-09-03 10:58         ` Wang, Xiao W
2019-08-29  7:59 ` [dpdk-dev] [PATCH 03/15] net/virtio: move control path fonctions in virtqueue file Maxime Coquelin
2019-09-02  6:05   ` Tiwei Bie
2019-08-29  7:59 ` [dpdk-dev] [PATCH 04/15] net/virtio: add virtio PCI subsystem device ID declaration Maxime Coquelin
2019-09-02  6:14   ` Tiwei Bie
2019-09-03  7:25     ` Maxime Coquelin
2019-08-29  7:59 ` [dpdk-dev] [PATCH 05/15] net/virtio: save notify bar ID in virtio HW struct Maxime Coquelin
2019-09-02  6:17   ` Tiwei Bie
2019-08-29  7:59 ` [dpdk-dev] [PATCH 06/15] net/virtio: add skeleton for virtio vDPA driver Maxime Coquelin
2019-09-02  6:27   ` Tiwei Bie
2019-09-03  7:25     ` Maxime Coquelin
2019-08-29  7:59 ` [dpdk-dev] [PATCH 07/15] net/virtio: add vDPA ops to get number of queue Maxime Coquelin
2019-09-02  6:32   ` Tiwei Bie
2019-08-29  7:59 ` [dpdk-dev] [PATCH 08/15] net/virtio: add virtio vDPA op to get features Maxime Coquelin
2019-09-02  6:43   ` Tiwei Bie
2019-09-03  7:27     ` Maxime Coquelin
2019-08-29  7:59 ` [dpdk-dev] [PATCH 09/15] net/virtio: add virtio vDPA op to get protocol features Maxime Coquelin
2019-09-02  6:46   ` Tiwei Bie
2019-08-29  7:59 ` [dpdk-dev] [PATCH 10/15] net/virtio: add vDPA op to configure and start the device Maxime Coquelin
2019-09-03  5:30   ` Tiwei Bie
2019-09-03  7:40     ` Maxime Coquelin
2019-09-03  8:49       ` Tiwei Bie
2019-09-04  4:06         ` Jason Wang
2019-09-04  6:56           ` Maxime Coquelin
2019-09-05  2:57             ` Tiwei Bie
2019-08-29  7:59 ` [dpdk-dev] [PATCH 11/15] net/virtio: add vDPA op to stop and close " Maxime Coquelin
2019-09-02  7:07   ` Tiwei Bie [this message]
2019-09-03  7:30     ` Maxime Coquelin
2019-08-29  7:59 ` [dpdk-dev] [PATCH 12/15] net/virtio: add vDPA op to set features Maxime Coquelin
2019-08-29  7:59 ` [dpdk-dev] [PATCH 13/15] net/virtio: add vDPA ops to get VFIO FDs Maxime Coquelin
2019-09-03  4:47   ` Tiwei Bie
2019-08-29  7:59 ` [dpdk-dev] [PATCH 14/15] net/virtio: add vDPA op to get notification area Maxime Coquelin
2019-09-03  5:02   ` Tiwei Bie
2019-09-03  7:36     ` Maxime Coquelin
2019-09-03  8:40       ` Tiwei Bie
2019-08-29  8:00 ` [dpdk-dev] [PATCH 15/15] doc: add documentation for Virtio vDPA driver Maxime Coquelin
2019-09-09 11:55 ` [dpdk-dev] [PATCH 00/15] Introduce " Shahaf Shuler
2019-09-10  7:46   ` Maxime Coquelin
2019-09-10 13:44     ` Shahaf Shuler
2019-09-10 13:56       ` Maxime Coquelin
2019-09-11  5:15         ` Shahaf Shuler
2019-09-11  7:15           ` Maxime Coquelin
2019-10-24  6:32 ` Maxime Coquelin

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