From: Sridhar Samudrala <sridhar.samudrala@intel.com> To: mst@redhat.com, stephen@networkplumber.org, davem@davemloft.net, netdev@vger.kernel.org, virtualization@lists.linux-foundation.org, virtio-dev@lists.oasis-open.org, jesse.brandeburg@intel.com, alexander.h.duyck@intel.com, kubakici@wp.pl, sridhar.samudrala@intel.com, jasowang@redhat.com, loseweigh@gmail.com Subject: [RFC PATCH v3 1/3] virtio_net: Introduce VIRTIO_NET_F_BACKUP feature bit Date: Fri, 16 Feb 2018 10:11:20 -0800 [thread overview] Message-ID: <1518804682-16881-2-git-send-email-sridhar.samudrala@intel.com> (raw) In-Reply-To: <1518804682-16881-1-git-send-email-sridhar.samudrala@intel.com> This feature bit can be used by hypervisor to indicate virtio_net device to act as a backup for another device with the same MAC address. VIRTIO_NET_F_BACKUP is defined as bit 62 as it is a device feature bit. Signed-off-by: Sridhar Samudrala <sridhar.samudrala@intel.com> --- drivers/net/virtio_net.c | 2 +- include/uapi/linux/virtio_net.h | 3 +++ 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 626c27352ae2..bcd13fe906ca 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -2920,7 +2920,7 @@ static struct virtio_device_id id_table[] = { VIRTIO_NET_F_GUEST_ANNOUNCE, VIRTIO_NET_F_MQ, \ VIRTIO_NET_F_CTRL_MAC_ADDR, \ VIRTIO_NET_F_MTU, VIRTIO_NET_F_CTRL_GUEST_OFFLOADS, \ - VIRTIO_NET_F_SPEED_DUPLEX + VIRTIO_NET_F_SPEED_DUPLEX, VIRTIO_NET_F_BACKUP static unsigned int features[] = { VIRTNET_FEATURES, diff --git a/include/uapi/linux/virtio_net.h b/include/uapi/linux/virtio_net.h index 5de6ed37695b..c7c35fd1a5ed 100644 --- a/include/uapi/linux/virtio_net.h +++ b/include/uapi/linux/virtio_net.h @@ -57,6 +57,9 @@ * Steering */ #define VIRTIO_NET_F_CTRL_MAC_ADDR 23 /* Set MAC address */ +#define VIRTIO_NET_F_BACKUP 62 /* Act as backup for another device + * with the same MAC. + */ #define VIRTIO_NET_F_SPEED_DUPLEX 63 /* Device set linkspeed and duplex */ #ifndef VIRTIO_NET_NO_LEGACY -- 2.14.3
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From: Sridhar Samudrala <sridhar.samudrala@intel.com> To: mst@redhat.com, stephen@networkplumber.org, davem@davemloft.net, netdev@vger.kernel.org, virtualization@lists.linux-foundation.org, virtio-dev@lists.oasis-open.org, jesse.brandeburg@intel.com, alexander.h.duyck@intel.com, kubakici@wp.pl, sridhar.samudrala@intel.com, jasowang@redhat.com, loseweigh@gmail.com Subject: [virtio-dev] [RFC PATCH v3 1/3] virtio_net: Introduce VIRTIO_NET_F_BACKUP feature bit Date: Fri, 16 Feb 2018 10:11:20 -0800 [thread overview] Message-ID: <1518804682-16881-2-git-send-email-sridhar.samudrala@intel.com> (raw) In-Reply-To: <1518804682-16881-1-git-send-email-sridhar.samudrala@intel.com> This feature bit can be used by hypervisor to indicate virtio_net device to act as a backup for another device with the same MAC address. VIRTIO_NET_F_BACKUP is defined as bit 62 as it is a device feature bit. Signed-off-by: Sridhar Samudrala <sridhar.samudrala@intel.com> --- drivers/net/virtio_net.c | 2 +- include/uapi/linux/virtio_net.h | 3 +++ 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 626c27352ae2..bcd13fe906ca 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -2920,7 +2920,7 @@ static struct virtio_device_id id_table[] = { VIRTIO_NET_F_GUEST_ANNOUNCE, VIRTIO_NET_F_MQ, \ VIRTIO_NET_F_CTRL_MAC_ADDR, \ VIRTIO_NET_F_MTU, VIRTIO_NET_F_CTRL_GUEST_OFFLOADS, \ - VIRTIO_NET_F_SPEED_DUPLEX + VIRTIO_NET_F_SPEED_DUPLEX, VIRTIO_NET_F_BACKUP static unsigned int features[] = { VIRTNET_FEATURES, diff --git a/include/uapi/linux/virtio_net.h b/include/uapi/linux/virtio_net.h index 5de6ed37695b..c7c35fd1a5ed 100644 --- a/include/uapi/linux/virtio_net.h +++ b/include/uapi/linux/virtio_net.h @@ -57,6 +57,9 @@ * Steering */ #define VIRTIO_NET_F_CTRL_MAC_ADDR 23 /* Set MAC address */ +#define VIRTIO_NET_F_BACKUP 62 /* Act as backup for another device + * with the same MAC. + */ #define VIRTIO_NET_F_SPEED_DUPLEX 63 /* Device set linkspeed and duplex */ #ifndef VIRTIO_NET_NO_LEGACY -- 2.14.3 --------------------------------------------------------------------- To unsubscribe, e-mail: virtio-dev-unsubscribe@lists.oasis-open.org For additional commands, e-mail: virtio-dev-help@lists.oasis-open.org
next prev parent reply other threads:[~2018-02-16 18:11 UTC|newest] Thread overview: 120+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-02-16 18:11 [RFC PATCH v3 0/3] Enable virtio_net to act as a backup for a passthru device Sridhar Samudrala 2018-02-16 18:11 ` [virtio-dev] " Sridhar Samudrala 2018-02-16 18:11 ` [RFC PATCH v3 1/3] virtio_net: Introduce VIRTIO_NET_F_BACKUP feature bit Sridhar Samudrala 2018-02-16 18:11 ` Sridhar Samudrala [this message] 2018-02-16 18:11 ` [virtio-dev] " Sridhar Samudrala 2018-02-16 18:11 ` [RFC PATCH v3 2/3] virtio_net: Extend virtio to use VF datapath when available Sridhar Samudrala 2018-02-16 18:11 ` Sridhar Samudrala 2018-02-16 18:11 ` [virtio-dev] " Sridhar Samudrala 2018-02-17 3:04 ` Jakub Kicinski 2018-02-17 17:41 ` Alexander Duyck 2018-02-17 3:04 ` Jakub Kicinski 2018-02-16 18:11 ` [RFC PATCH v3 3/3] virtio_net: Enable alternate datapath without creating an additional netdev Sridhar Samudrala 2018-02-16 18:11 ` [virtio-dev] " Sridhar Samudrala 2018-02-16 18:11 ` Sridhar Samudrala 2018-02-17 2:38 ` [RFC PATCH v3 0/3] Enable virtio_net to act as a backup for a passthru device Jakub Kicinski 2018-02-17 2:38 ` Jakub Kicinski 2018-02-17 17:12 ` Alexander Duyck 2018-02-17 17:12 ` [virtio-dev] " Alexander Duyck 2018-02-19 6:11 ` Jakub Kicinski 2018-02-20 16:26 ` Samudrala, Sridhar 2018-02-20 16:26 ` [virtio-dev] " Samudrala, Sridhar 2018-02-20 16:26 ` Samudrala, Sridhar 2018-02-21 23:50 ` Siwei Liu 2018-02-21 23:50 ` [virtio-dev] " Siwei Liu 2018-02-22 0:17 ` Alexander Duyck 2018-02-22 0:17 ` Alexander Duyck 2018-02-22 0:17 ` [virtio-dev] " Alexander Duyck 2018-02-22 1:59 ` Siwei Liu 2018-02-22 1:59 ` Siwei Liu 2018-02-22 1:59 ` [virtio-dev] " Siwei Liu 2018-02-22 2:35 ` Samudrala, Sridhar 2018-02-22 2:35 ` Samudrala, Sridhar 2018-02-22 2:35 ` [virtio-dev] " Samudrala, Sridhar 2018-02-22 3:28 ` Samudrala, Sridhar 2018-02-22 3:28 ` [virtio-dev] " Samudrala, Sridhar 2018-02-23 22:22 ` Siwei Liu 2018-02-23 22:22 ` [virtio-dev] " Siwei Liu 2018-02-23 22:38 ` Jiri Pirko 2018-02-24 0:17 ` Siwei Liu 2018-02-24 0:17 ` [virtio-dev] " Siwei Liu 2018-02-24 0:03 ` Stephen Hemminger 2018-02-25 22:17 ` Alexander Duyck 2018-02-25 22:17 ` [virtio-dev] " Alexander Duyck 2018-02-25 22:17 ` Alexander Duyck 2018-02-21 23:50 ` Siwei Liu 2018-02-17 17:12 ` Alexander Duyck 2018-02-20 10:42 ` Jiri Pirko 2018-02-20 16:04 ` Alexander Duyck 2018-02-20 16:04 ` [virtio-dev] " Alexander Duyck 2018-02-20 16:29 ` Jiri Pirko 2018-02-20 17:14 ` Samudrala, Sridhar 2018-02-20 17:14 ` [virtio-dev] " Samudrala, Sridhar 2018-02-20 20:14 ` Jiri Pirko 2018-02-20 21:02 ` Alexander Duyck 2018-02-20 21:02 ` [virtio-dev] " Alexander Duyck 2018-02-20 21:02 ` Alexander Duyck 2018-02-20 22:33 ` Jakub Kicinski 2018-02-21 9:51 ` Jiri Pirko 2018-02-21 15:56 ` Alexander Duyck 2018-02-21 15:56 ` [virtio-dev] " Alexander Duyck 2018-02-21 16:11 ` Jiri Pirko 2018-02-21 16:49 ` Alexander Duyck 2018-02-21 16:49 ` [virtio-dev] " Alexander Duyck 2018-02-21 16:58 ` Jiri Pirko 2018-02-21 17:56 ` Alexander Duyck 2018-02-21 17:56 ` Alexander Duyck 2018-02-21 17:56 ` [virtio-dev] " Alexander Duyck 2018-02-21 19:38 ` Jiri Pirko 2018-02-21 20:57 ` Alexander Duyck 2018-02-21 20:57 ` [virtio-dev] " Alexander Duyck 2018-02-22 2:02 ` Jakub Kicinski 2018-02-22 2:15 ` Samudrala, Sridhar 2018-02-22 2:15 ` [virtio-dev] " Samudrala, Sridhar 2018-02-22 2:15 ` Samudrala, Sridhar 2018-02-22 8:11 ` Jiri Pirko 2018-02-22 11:54 ` Or Gerlitz 2018-02-22 13:07 ` Jiri Pirko 2018-02-22 15:30 ` Alexander Duyck 2018-02-22 15:30 ` [virtio-dev] " Alexander Duyck 2018-02-22 21:30 ` Alexander Duyck 2018-02-22 21:30 ` [virtio-dev] " Alexander Duyck 2018-02-23 23:59 ` Stephen Hemminger 2018-02-25 22:21 ` Alexander Duyck 2018-02-25 22:21 ` Alexander Duyck 2018-02-25 22:21 ` [virtio-dev] " Alexander Duyck 2018-02-26 7:19 ` Jiri Pirko 2018-02-27 1:02 ` Stephen Hemminger 2018-02-27 1:18 ` Michael S. Tsirkin 2018-02-27 1:18 ` [virtio-dev] " Michael S. Tsirkin 2018-02-27 8:27 ` Jiri Pirko 2018-02-22 21:30 ` Alexander Duyck 2018-02-21 20:57 ` Alexander Duyck 2018-02-21 16:49 ` Alexander Duyck 2018-02-21 15:56 ` Alexander Duyck 2018-02-20 17:14 ` Samudrala, Sridhar 2018-02-20 17:23 ` Alexander Duyck 2018-02-20 17:23 ` [virtio-dev] " Alexander Duyck 2018-02-20 19:53 ` Jiri Pirko 2018-02-27 8:49 ` Jiri Pirko 2018-02-27 21:16 ` Alexander Duyck 2018-02-27 21:16 ` Alexander Duyck 2018-02-27 21:16 ` [virtio-dev] " Alexander Duyck 2018-02-27 21:23 ` Michael S. Tsirkin 2018-02-27 21:23 ` [virtio-dev] " Michael S. Tsirkin 2018-02-27 21:41 ` Jakub Kicinski 2018-02-28 7:08 ` Jiri Pirko 2018-02-28 14:32 ` Michael S. Tsirkin 2018-02-28 14:32 ` [virtio-dev] " Michael S. Tsirkin 2018-02-28 15:11 ` Jiri Pirko 2018-02-28 15:45 ` Michael S. Tsirkin 2018-02-28 15:45 ` Michael S. Tsirkin 2018-02-28 15:45 ` [virtio-dev] " Michael S. Tsirkin 2018-02-28 19:25 ` Jiri Pirko 2018-02-28 20:48 ` Michael S. Tsirkin 2018-02-28 20:48 ` Michael S. Tsirkin 2018-02-28 20:48 ` [virtio-dev] " Michael S. Tsirkin 2018-02-27 21:30 ` Michael S. Tsirkin 2018-02-27 21:30 ` [virtio-dev] " Michael S. Tsirkin 2018-02-27 21:30 ` Michael S. Tsirkin 2018-02-20 16:04 ` Alexander Duyck
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