DPDK patches and discussions
 help / color / mirror / Atom feed
From: Stephen Hemminger <stephen@networkplumber.org>
To: "Ouyang, Changchun" <changchun.ouyang@intel.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH 4/5] virtio: New API to enable/disable multicast and promisc mode
Date: Mon, 25 Aug 2014 18:26:04 -0700
Message-ID: <20140825182604.7a8ab935@urahara> (raw)
In-Reply-To: <F52918179C57134FAEC9EA62FA2F96251183AFD6@shsmsx102.ccr.corp.intel.com>

On Tue, 26 Aug 2014 01:05:16 +0000
"Ouyang, Changchun" <changchun.ouyang@intel.com> wrote:

> Hi  Stephen,
> 
> My response below.
> 
> Thanks 
> Changchun
> 
> 
> > -----Original Message-----
> > From: Stephen Hemminger [mailto:stephen@networkplumber.org]
> > Sent: Tuesday, August 26, 2014 8:13 AM
> > To: Ouyang, Changchun
> > Cc: dev@dpdk.org
> > Subject: Re: [dpdk-dev] [PATCH 4/5] virtio: New API to enable/disable
> > multicast and promisc mode
> > 
> > On Mon, 25 Aug 2014 10:09:31 +0800
> > Ouyang Changchun <changchun.ouyang@intel.com> wrote:
> > 
> > > This patch adds new API in virtio for supporting promiscuous and
> > allmulticast enabling and disabling.
> > >
> > > Signed-off-by: Changchun Ouyang <changchun.ouyang@intel.com>
> > > Acked-by: Huawei Xie <huawei.xie@intel.com>
> > > Acked-by: Cunming Liang <cunming.liang@intel.com>
> > >
> > > ---
> > >  lib/librte_pmd_virtio/virtio_ethdev.c | 98
> > > ++++++++++++++++++++++++++++++++++-
> > >  1 file changed, 97 insertions(+), 1 deletion(-)
> > >
> > > diff --git a/lib/librte_pmd_virtio/virtio_ethdev.c
> > > b/lib/librte_pmd_virtio/virtio_ethdev.c
> > > index 6293ac6..c7f874a 100644
> > > --- a/lib/librte_pmd_virtio/virtio_ethdev.c
> > > +++ b/lib/librte_pmd_virtio/virtio_ethdev.c
> > > @@ -66,6 +66,10 @@ static int eth_virtio_dev_init(struct eth_driver
> > > *eth_drv,  static int  virtio_dev_configure(struct rte_eth_dev *dev);
> > > static int  virtio_dev_start(struct rte_eth_dev *dev);  static void
> > > virtio_dev_stop(struct rte_eth_dev *dev);
> > > +static void virtio_dev_promiscuous_enable(struct rte_eth_dev *dev);
> > > +static void virtio_dev_promiscuous_disable(struct rte_eth_dev *dev);
> > > +static void virtio_dev_allmulticast_enable(struct rte_eth_dev *dev);
> > > +static void virtio_dev_allmulticast_disable(struct rte_eth_dev *dev);
> > >  static void virtio_dev_info_get(struct rte_eth_dev *dev,
> > >  				struct rte_eth_dev_info *dev_info);  static
> > int
> > > virtio_dev_link_update(struct rte_eth_dev *dev, @@ -403,6 +407,94 @@
> > > virtio_dev_close(struct rte_eth_dev *dev)
> > >  	virtio_dev_stop(dev);
> > >  }
> > >
> > > +static void
> > > +virtio_dev_promiscuous_enable(struct rte_eth_dev *dev) {
> > > +	struct virtio_hw *hw
> > > +		= VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private);
> > > +	struct virtio_pmd_ctrl ctrl;
> > > +	int dlen[1];
> > > +	int ret;
> > > +
> > > +	ctrl.hdr.class = VIRTIO_NET_CTRL_RX;
> > > +	ctrl.hdr.cmd = VIRTIO_NET_CTRL_RX_PROMISC;
> > > +	ctrl.data[0] = 1;
> > > +	dlen[0] = 1;
> > > +
> > > +	ret = virtio_send_command(hw->cvq, &ctrl, dlen, 1);
> > > +
> > > +	if (ret) {
> > > +		PMD_INIT_LOG(ERR, "Promisc enabling but send command "
> > > +			  "failed, this is too late now...\n");
> > > +	}
> > > +}
> > > +
> > > +static void
> > > +virtio_dev_promiscuous_disable(struct rte_eth_dev *dev) {
> > > +	struct virtio_hw *hw
> > > +		= VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private);
> > > +	struct virtio_pmd_ctrl ctrl;
> > > +	int dlen[1];
> > > +	int ret;
> > > +
> > > +	ctrl.hdr.class = VIRTIO_NET_CTRL_RX;
> > > +	ctrl.hdr.cmd = VIRTIO_NET_CTRL_RX_PROMISC;
> > > +	ctrl.data[0] = 0;
> > > +	dlen[0] = 1;
> > > +
> > > +	ret = virtio_send_command(hw->cvq, &ctrl, dlen, 1);
> > > +
> > > +	if (ret) {
> > > +		PMD_INIT_LOG(ERR, "Promisc disabling but send command "
> > > +			  "failed, this is too late now...\n");
> > > +	}
> > > +}
> > > +
> > > +static void
> > > +virtio_dev_allmulticast_enable(struct rte_eth_dev *dev) {
> > > +	struct virtio_hw *hw
> > > +		= VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private);
> > > +	struct virtio_pmd_ctrl ctrl;
> > > +	int dlen[1];
> > > +	int ret;
> > > +
> > > +	ctrl.hdr.class = VIRTIO_NET_CTRL_RX;
> > > +	ctrl.hdr.cmd = VIRTIO_NET_CTRL_RX_ALLMULTI;
> > > +	ctrl.data[0] = 1;
> > > +	dlen[0] = 1;
> > > +
> > > +	ret = virtio_send_command(hw->cvq, &ctrl, dlen, 1);
> > > +
> > > +	if (ret) {
> > > +		PMD_INIT_LOG(ERR, "Promisc enabling but send command "
> > > +			  "failed, this is too late now...\n");
> > > +	}
> > > +}
> > > +
> > > +static void
> > > +virtio_dev_allmulticast_disable(struct rte_eth_dev *dev) {
> > > +	struct virtio_hw *hw
> > > +		= VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private);
> > > +	struct virtio_pmd_ctrl ctrl;
> > > +	int dlen[1];
> > > +	int ret;
> > > +
> > > +	ctrl.hdr.class = VIRTIO_NET_CTRL_RX;
> > > +	ctrl.hdr.cmd = VIRTIO_NET_CTRL_RX_ALLMULTI;
> > > +	ctrl.data[0] = 0;
> > > +	dlen[0] = 1;
> > > +
> > > +	ret = virtio_send_command(hw->cvq, &ctrl, dlen, 1);
> > > +
> > > +	if (ret) {
> > > +		PMD_INIT_LOG(ERR, "Promisc disabling but send command "
> > > +			  "failed, this is too late now...\n");
> > > +	}
> > > +}
> > > +
> > >  /*
> > >   * dev_ops for virtio, bare necessities for basic operation
> > >   */
> > > @@ -411,6 +503,10 @@ static struct eth_dev_ops virtio_eth_dev_ops = {
> > >  	.dev_start               = virtio_dev_start,
> > >  	.dev_stop                = virtio_dev_stop,
> > >  	.dev_close               = virtio_dev_close,
> > > +	.promiscuous_enable      = virtio_dev_promiscuous_enable,
> > > +	.promiscuous_disable     = virtio_dev_promiscuous_disable,
> > > +	.allmulticast_enable     = virtio_dev_allmulticast_enable,
> > > +	.allmulticast_disable    = virtio_dev_allmulticast_disable,
> > >
> > >  	.dev_infos_get           = virtio_dev_info_get,
> > >  	.stats_get               = virtio_dev_stats_get,
> > > @@ -561,7 +657,7 @@ virtio_negotiate_features(struct virtio_hw *hw)  {
> > >  	uint32_t host_features, mask;
> > >
> > > -	mask = VIRTIO_NET_F_CTRL_RX | VIRTIO_NET_F_CTRL_VLAN;
> > > +	mask = VIRTIO_NET_F_CTRL_VLAN;
> > >  	mask |= VIRTIO_NET_F_CSUM | VIRTIO_NET_F_GUEST_CSUM;
> > >
> > >  	/* TSO and LRO are only available when their corresponding
> > 
> > I have similar patches, but you really need to fix the driver so that control
> > queue is brought up on dev_init, not start.
> > It makes sense to allow code to change modes independent of whether
> > driver has been started or not.
> > 
> > Also, the virtio driver is doing reset on stop. This may not be best solution
> > because it conflicts with what Linux driver is doing.
> > 
> Yes, agree with you on these 2 existing issues, but I'd like to use a separate patch to fix them,
> And let this patch focus on multicast feature.
> 
> If you have already a patch to fix them, that's great.
> 
> > Another current bug is that virtio DPDK driver is broken on latest KVM. It
> > works with Debian stable, but not with Debian testing.
> > Too busy to investigate further.
> 
> Is this bug introduced by this patch or it is an existing bug?
> If it is introduced by this patch, a v2 patch is necessary,
> Otherwise, a separate patch is suggested.

It is an existing bug (in KVM). Not getting warm response from upstream.

  reply	other threads:[~2014-08-26  1:22 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-25  2:09 [dpdk-dev] [PATCH 0/5] Support virtio multicast feature Ouyang Changchun
2014-08-25  2:09 ` [dpdk-dev] [PATCH 1/5] ethdev: Add new config field to config VMDQ offload register Ouyang Changchun
2014-08-25  2:09 ` [dpdk-dev] [PATCH 2/5] e1000: config VMDQ offload register to receive multicast packet Ouyang Changchun
2014-08-25  2:09 ` [dpdk-dev] [PATCH 3/5] examples/vhost: enable promisc mode and config VMDQ offload register for multicast feature Ouyang Changchun
2014-08-25  2:09 ` [dpdk-dev] [PATCH 4/5] virtio: New API to enable/disable multicast and promisc mode Ouyang Changchun
2014-08-26  0:13   ` Stephen Hemminger
2014-08-26  1:05     ` Ouyang, Changchun
2014-08-26  1:26       ` Stephen Hemminger [this message]
2014-08-25  2:09 ` [dpdk-dev] [PATCH 5/5] examples/vmdq: set default value to rx mode Ouyang Changchun
2014-09-24  9:07 ` [dpdk-dev] [PATCH 0/5] Support virtio multicast feature Zhang, XiaonanX
2014-10-27  3:45 ` [dpdk-dev] [PATCH v2 " Ouyang Changchun
2014-10-27  3:45   ` [dpdk-dev] [PATCH v2 1/5] ethdev: Add new config field to config VMDQ offload register Ouyang Changchun
2014-10-27  3:45   ` [dpdk-dev] [PATCH v2 2/5] e1000: config VMDQ offload register to receive multicast packet Ouyang Changchun
2014-10-27  3:45   ` [dpdk-dev] [PATCH v2 3/5] vhost: enable promisc mode and config VMDQ offload register for multicast feature Ouyang Changchun
2014-10-29 23:26     ` Xie, Huawei
2014-10-30  0:49       ` Ouyang, Changchun
2014-10-30 10:10         ` Bruce Richardson
2014-10-30 15:18           ` Ouyang, Changchun
2015-01-08 10:07     ` Xie, Huawei
2015-01-09  5:21       ` Ouyang, Changchun
2015-01-14 16:37       ` Thomas Monjalon
2015-01-23  3:20         ` Xie, Huawei
2014-10-27  3:45   ` [dpdk-dev] [PATCH v2 4/5] virtio: New API to enable/disable multicast and promisc mode Ouyang Changchun
2014-10-27  3:45   ` [dpdk-dev] [PATCH v2 5/5] examples/vmdq: set default value to rx mode Ouyang Changchun
2014-10-31  5:19   ` [dpdk-dev] [PATCH v3 0/5] Support virtio multicast feature Ouyang Changchun
2014-10-31  5:19     ` [dpdk-dev] [PATCH v3 1/5] ethdev: add vmdq rx mode Ouyang Changchun
2014-11-06 13:55       ` Thomas Monjalon
2014-11-08  2:13         ` Ouyang, Changchun
2014-10-31  5:19     ` [dpdk-dev] [PATCH v3 2/5] igb: Config VM offload register Ouyang Changchun
2014-10-31  5:19     ` [dpdk-dev] [PATCH v3 3/5] ixgbe: Config PFVML2FLT register Ouyang Changchun
2014-11-06 13:57       ` Thomas Monjalon
2014-10-31  5:19     ` [dpdk-dev] [PATCH v3 4/5] virtio: New API for promisc and allmulticast Ouyang Changchun
2014-11-06 13:59       ` Thomas Monjalon
2014-10-31  5:19     ` [dpdk-dev] [PATCH v3 5/5] vhost: enable promisc mode and multicast Ouyang Changchun
2014-11-08  4:26     ` [dpdk-dev] [PATCH v4 0/5] Support virtio multicast feature Ouyang Changchun
2014-11-08  4:26       ` [dpdk-dev] [PATCH v4 1/5] ethdev: Add vmdq rx mode Ouyang Changchun
2014-11-08  4:26       ` [dpdk-dev] [PATCH v4 2/5] igb: Config VM offload register Ouyang Changchun
2014-11-08  4:26       ` [dpdk-dev] [PATCH v4 3/5] ixgbe: Configure Rx mode for VMDQ Ouyang Changchun
2014-11-08  4:26       ` [dpdk-dev] [PATCH v4 4/5] virtio: Support promiscuous and allmulticast Ouyang Changchun
2014-11-08  4:26       ` [dpdk-dev] [PATCH v4 5/5] vhost: Enable promisc mode and multicast Ouyang Changchun
2014-11-11 23:16       ` [dpdk-dev] [PATCH v4 0/5] Support virtio multicast feature Thomas Monjalon
2014-11-12  0:29         ` Ouyang, Changchun

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20140825182604.7a8ab935@urahara \
    --to=stephen@networkplumber.org \
    --cc=changchun.ouyang@intel.com \
    --cc=dev@dpdk.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

DPDK patches and discussions

This inbox may be cloned and mirrored by anyone:

	git clone --mirror https://inbox.dpdk.org/dev/0 dev/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 dev dev/ https://inbox.dpdk.org/dev \
		dev@dpdk.org
	public-inbox-index dev

Example config snippet for mirrors.
Newsgroup available over NNTP:
	nntp://inbox.dpdk.org/inbox.dpdk.dev


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git