Displaying 20 results from an estimated 149 matches for "padded_vnet_hdr".
2016 Dec 23
1
[RFC PATCH] virtio_net: XDP support for adjust_head
...o_net.c b/drivers/net/virtio_net.c
index 08327e0..1a93158 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -159,6 +159,9 @@ struct virtnet_info {
/* Ethtool settings */
u8 duplex;
u32 speed;
+
+ /* Headroom allocated in RX Queue */
+ unsigned int headroom;
};
struct padded_vnet_hdr {
@@ -392,6 +395,7 @@ static u32 do_xdp_prog(struct virtnet_info *vi,
else
hdr_padded_len = sizeof(struct padded_vnet_hdr);
+ xdp.data_hard_start = buf - vi->headroom;
xdp.data = buf + hdr_padded_len;
xdp.data_end = xdp.data + (len - vi->hdr_len);
@@ -430,9 +434,12 @@ static stru...
2016 Dec 23
1
[RFC PATCH] virtio_net: XDP support for adjust_head
...o_net.c b/drivers/net/virtio_net.c
index 08327e0..1a93158 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -159,6 +159,9 @@ struct virtnet_info {
/* Ethtool settings */
u8 duplex;
u32 speed;
+
+ /* Headroom allocated in RX Queue */
+ unsigned int headroom;
};
struct padded_vnet_hdr {
@@ -392,6 +395,7 @@ static u32 do_xdp_prog(struct virtnet_info *vi,
else
hdr_padded_len = sizeof(struct padded_vnet_hdr);
+ xdp.data_hard_start = buf - vi->headroom;
xdp.data = buf + hdr_padded_len;
xdp.data_end = xdp.data + (len - vi->hdr_len);
@@ -430,9 +434,12 @@ static stru...
2014 Nov 25
2
[PATCH v4 21/42] virtio_net: get rid of virtio_net_hdr/skb_vnet_hdr
...header size */
+ u8 hdr_len;
+
/* Active statistics */
struct virtnet_stats __percpu *stats;
@@ -139,21 +142,14 @@ struct virtnet_info {
struct notifier_block nb;
};
-struct skb_vnet_hdr {
- union {
- struct virtio_net_hdr hdr;
- struct virtio_net_hdr_mrg_rxbuf mhdr;
- };
-};
-
struct padded_vnet_hdr {
- struct virtio_net_hdr hdr;
+ struct virtio_net_hdr_mrg_rxbuf hdr;
/*
- * virtio_net_hdr should be in a separated sg buffer because of a
- * QEMU bug, and data sg buffer shares same page with this header sg.
- * This padding makes next sg 16 byte aligned after virtio_net_hdr.
+ * hdr is in...
2014 Nov 25
2
[PATCH v4 21/42] virtio_net: get rid of virtio_net_hdr/skb_vnet_hdr
...header size */
+ u8 hdr_len;
+
/* Active statistics */
struct virtnet_stats __percpu *stats;
@@ -139,21 +142,14 @@ struct virtnet_info {
struct notifier_block nb;
};
-struct skb_vnet_hdr {
- union {
- struct virtio_net_hdr hdr;
- struct virtio_net_hdr_mrg_rxbuf mhdr;
- };
-};
-
struct padded_vnet_hdr {
- struct virtio_net_hdr hdr;
+ struct virtio_net_hdr_mrg_rxbuf hdr;
/*
- * virtio_net_hdr should be in a separated sg buffer because of a
- * QEMU bug, and data sg buffer shares same page with this header sg.
- * This padding makes next sg 16 byte aligned after virtio_net_hdr.
+ * hdr is in...
2017 Apr 15
11
[PATCH RFC (resend) net-next 0/6] virtio-net: Add support for virtio-net header extensions
Curreclty virtion net header is fixed size and adding things to it is rather
difficult to do. This series attempt to add the infrastructure as well as some
extensions that try to resolve some deficiencies we currently have.
First, vnet header only has space for 16 flags. This may not be enough
in the future. The extensions will provide space for 32 possbile extension
flags and 32 possible
2017 Apr 15
11
[PATCH RFC (resend) net-next 0/6] virtio-net: Add support for virtio-net header extensions
Curreclty virtion net header is fixed size and adding things to it is rather
difficult to do. This series attempt to add the infrastructure as well as some
extensions that try to resolve some deficiencies we currently have.
First, vnet header only has space for 16 flags. This may not be enough
in the future. The extensions will provide space for 32 possbile extension
flags and 32 possible
2014 Nov 27
1
[PATCH v6 24/46] virtio_net: get rid of virtio_net_hdr/skb_vnet_hdr
...header size */
+ u8 hdr_len;
+
/* Active statistics */
struct virtnet_stats __percpu *stats;
@@ -139,21 +142,14 @@ struct virtnet_info {
struct notifier_block nb;
};
-struct skb_vnet_hdr {
- union {
- struct virtio_net_hdr hdr;
- struct virtio_net_hdr_mrg_rxbuf mhdr;
- };
-};
-
struct padded_vnet_hdr {
- struct virtio_net_hdr hdr;
+ struct virtio_net_hdr_mrg_rxbuf hdr;
/*
- * virtio_net_hdr should be in a separated sg buffer because of a
- * QEMU bug, and data sg buffer shares same page with this header sg.
- * This padding makes next sg 16 byte aligned after virtio_net_hdr.
+ * hdr is in...
2014 Nov 27
1
[PATCH v6 24/46] virtio_net: get rid of virtio_net_hdr/skb_vnet_hdr
...header size */
+ u8 hdr_len;
+
/* Active statistics */
struct virtnet_stats __percpu *stats;
@@ -139,21 +142,14 @@ struct virtnet_info {
struct notifier_block nb;
};
-struct skb_vnet_hdr {
- union {
- struct virtio_net_hdr hdr;
- struct virtio_net_hdr_mrg_rxbuf mhdr;
- };
-};
-
struct padded_vnet_hdr {
- struct virtio_net_hdr hdr;
+ struct virtio_net_hdr_mrg_rxbuf hdr;
/*
- * virtio_net_hdr should be in a separated sg buffer because of a
- * QEMU bug, and data sg buffer shares same page with this header sg.
- * This padding makes next sg 16 byte aligned after virtio_net_hdr.
+ * hdr is in...
2014 Oct 23
0
[PATCH RFC 2/4] virtio_net: get rid of virtio_net_hdr/skb_vnet_hdr
...header size */
+ u8 hdr_len;
+
/* Active statistics */
struct virtnet_stats __percpu *stats;
@@ -139,21 +142,14 @@ struct virtnet_info {
struct notifier_block nb;
};
-struct skb_vnet_hdr {
- union {
- struct virtio_net_hdr hdr;
- struct virtio_net_hdr_mrg_rxbuf mhdr;
- };
-};
-
struct padded_vnet_hdr {
- struct virtio_net_hdr hdr;
+ struct virtio_net_hdr_mrg_rxbuf hdr;
/*
- * virtio_net_hdr should be in a separated sg buffer because of a
- * QEMU bug, and data sg buffer shares same page with this header sg.
- * This padding makes next sg 16 byte aligned after virtio_net_hdr.
+ * hdr is in...
2014 Oct 23
0
[PATCH RFC 2/4] virtio_net: get rid of virtio_net_hdr/skb_vnet_hdr
...header size */
+ u8 hdr_len;
+
/* Active statistics */
struct virtnet_stats __percpu *stats;
@@ -139,21 +142,14 @@ struct virtnet_info {
struct notifier_block nb;
};
-struct skb_vnet_hdr {
- union {
- struct virtio_net_hdr hdr;
- struct virtio_net_hdr_mrg_rxbuf mhdr;
- };
-};
-
struct padded_vnet_hdr {
- struct virtio_net_hdr hdr;
+ struct virtio_net_hdr_mrg_rxbuf hdr;
/*
- * virtio_net_hdr should be in a separated sg buffer because of a
- * QEMU bug, and data sg buffer shares same page with this header sg.
- * This padding makes next sg 16 byte aligned after virtio_net_hdr.
+ * hdr is in...
2014 Nov 24
0
[PATCH v3 20/41] virtio_net: get rid of virtio_net_hdr/skb_vnet_hdr
...header size */
+ u8 hdr_len;
+
/* Active statistics */
struct virtnet_stats __percpu *stats;
@@ -139,21 +142,14 @@ struct virtnet_info {
struct notifier_block nb;
};
-struct skb_vnet_hdr {
- union {
- struct virtio_net_hdr hdr;
- struct virtio_net_hdr_mrg_rxbuf mhdr;
- };
-};
-
struct padded_vnet_hdr {
- struct virtio_net_hdr hdr;
+ struct virtio_net_hdr_mrg_rxbuf hdr;
/*
- * virtio_net_hdr should be in a separated sg buffer because of a
- * QEMU bug, and data sg buffer shares same page with this header sg.
- * This padding makes next sg 16 byte aligned after virtio_net_hdr.
+ * hdr is in...
2014 Nov 24
0
[PATCH v3 20/41] virtio_net: get rid of virtio_net_hdr/skb_vnet_hdr
...header size */
+ u8 hdr_len;
+
/* Active statistics */
struct virtnet_stats __percpu *stats;
@@ -139,21 +142,14 @@ struct virtnet_info {
struct notifier_block nb;
};
-struct skb_vnet_hdr {
- union {
- struct virtio_net_hdr hdr;
- struct virtio_net_hdr_mrg_rxbuf mhdr;
- };
-};
-
struct padded_vnet_hdr {
- struct virtio_net_hdr hdr;
+ struct virtio_net_hdr_mrg_rxbuf hdr;
/*
- * virtio_net_hdr should be in a separated sg buffer because of a
- * QEMU bug, and data sg buffer shares same page with this header sg.
- * This padding makes next sg 16 byte aligned after virtio_net_hdr.
+ * hdr is in...
2014 Nov 27
0
[PATCH v5 23/45] virtio_net: get rid of virtio_net_hdr/skb_vnet_hdr
...header size */
+ u8 hdr_len;
+
/* Active statistics */
struct virtnet_stats __percpu *stats;
@@ -139,21 +142,14 @@ struct virtnet_info {
struct notifier_block nb;
};
-struct skb_vnet_hdr {
- union {
- struct virtio_net_hdr hdr;
- struct virtio_net_hdr_mrg_rxbuf mhdr;
- };
-};
-
struct padded_vnet_hdr {
- struct virtio_net_hdr hdr;
+ struct virtio_net_hdr_mrg_rxbuf hdr;
/*
- * virtio_net_hdr should be in a separated sg buffer because of a
- * QEMU bug, and data sg buffer shares same page with this header sg.
- * This padding makes next sg 16 byte aligned after virtio_net_hdr.
+ * hdr is in...
2014 Nov 27
0
[PATCH v5 23/45] virtio_net: get rid of virtio_net_hdr/skb_vnet_hdr
...header size */
+ u8 hdr_len;
+
/* Active statistics */
struct virtnet_stats __percpu *stats;
@@ -139,21 +142,14 @@ struct virtnet_info {
struct notifier_block nb;
};
-struct skb_vnet_hdr {
- union {
- struct virtio_net_hdr hdr;
- struct virtio_net_hdr_mrg_rxbuf mhdr;
- };
-};
-
struct padded_vnet_hdr {
- struct virtio_net_hdr hdr;
+ struct virtio_net_hdr_mrg_rxbuf hdr;
/*
- * virtio_net_hdr should be in a separated sg buffer because of a
- * QEMU bug, and data sg buffer shares same page with this header sg.
- * This padding makes next sg 16 byte aligned after virtio_net_hdr.
+ * hdr is in...
2014 Nov 30
0
[PATCH v7 24/46] virtio_net: get rid of virtio_net_hdr/skb_vnet_hdr
...header size */
+ u8 hdr_len;
+
/* Active statistics */
struct virtnet_stats __percpu *stats;
@@ -139,21 +142,14 @@ struct virtnet_info {
struct notifier_block nb;
};
-struct skb_vnet_hdr {
- union {
- struct virtio_net_hdr hdr;
- struct virtio_net_hdr_mrg_rxbuf mhdr;
- };
-};
-
struct padded_vnet_hdr {
- struct virtio_net_hdr hdr;
+ struct virtio_net_hdr_mrg_rxbuf hdr;
/*
- * virtio_net_hdr should be in a separated sg buffer because of a
- * QEMU bug, and data sg buffer shares same page with this header sg.
- * This padding makes next sg 16 byte aligned after virtio_net_hdr.
+ * hdr is in...
2014 Dec 01
0
[PATCH v8 24/50] virtio_net: get rid of virtio_net_hdr/skb_vnet_hdr
...header size */
+ u8 hdr_len;
+
/* Active statistics */
struct virtnet_stats __percpu *stats;
@@ -139,21 +142,14 @@ struct virtnet_info {
struct notifier_block nb;
};
-struct skb_vnet_hdr {
- union {
- struct virtio_net_hdr hdr;
- struct virtio_net_hdr_mrg_rxbuf mhdr;
- };
-};
-
struct padded_vnet_hdr {
- struct virtio_net_hdr hdr;
+ struct virtio_net_hdr_mrg_rxbuf hdr;
/*
- * virtio_net_hdr should be in a separated sg buffer because of a
- * QEMU bug, and data sg buffer shares same page with this header sg.
- * This padding makes next sg 16 byte aligned after virtio_net_hdr.
+ * hdr is in...
2014 Nov 30
0
[PATCH v7 24/46] virtio_net: get rid of virtio_net_hdr/skb_vnet_hdr
...header size */
+ u8 hdr_len;
+
/* Active statistics */
struct virtnet_stats __percpu *stats;
@@ -139,21 +142,14 @@ struct virtnet_info {
struct notifier_block nb;
};
-struct skb_vnet_hdr {
- union {
- struct virtio_net_hdr hdr;
- struct virtio_net_hdr_mrg_rxbuf mhdr;
- };
-};
-
struct padded_vnet_hdr {
- struct virtio_net_hdr hdr;
+ struct virtio_net_hdr_mrg_rxbuf hdr;
/*
- * virtio_net_hdr should be in a separated sg buffer because of a
- * QEMU bug, and data sg buffer shares same page with this header sg.
- * This padding makes next sg 16 byte aligned after virtio_net_hdr.
+ * hdr is in...
2014 Dec 01
0
[PATCH v8 24/50] virtio_net: get rid of virtio_net_hdr/skb_vnet_hdr
...header size */
+ u8 hdr_len;
+
/* Active statistics */
struct virtnet_stats __percpu *stats;
@@ -139,21 +142,14 @@ struct virtnet_info {
struct notifier_block nb;
};
-struct skb_vnet_hdr {
- union {
- struct virtio_net_hdr hdr;
- struct virtio_net_hdr_mrg_rxbuf mhdr;
- };
-};
-
struct padded_vnet_hdr {
- struct virtio_net_hdr hdr;
+ struct virtio_net_hdr_mrg_rxbuf hdr;
/*
- * virtio_net_hdr should be in a separated sg buffer because of a
- * QEMU bug, and data sg buffer shares same page with this header sg.
- * This padding makes next sg 16 byte aligned after virtio_net_hdr.
+ * hdr is in...
2016 Mar 10
1
[RFC -next 2/2] virtio_net: Read and use the advised MTU
...> index 767ab11..7175563 100644
> --- a/drivers/net/virtio_net.c
> +++ b/drivers/net/virtio_net.c
> @@ -146,6 +146,7 @@ struct virtnet_info {
> virtio_net_ctrl_ack ctrl_status;
> u8 ctrl_promisc;
> u8 ctrl_allmulti;
> + bool negotiated_mtu;
> };
>
> struct padded_vnet_hdr {
> @@ -1390,8 +1391,12 @@ static const struct ethtool_ops virtnet_ethtool_ops = {
>
> static int virtnet_change_mtu(struct net_device *dev, int new_mtu)
> {
> + struct virtnet_info *vi = netdev_priv(dev);
> if (new_mtu < MIN_MTU || new_mtu > MAX_MTU)
> return -E...
2016 Mar 10
1
[RFC -next 2/2] virtio_net: Read and use the advised MTU
...> index 767ab11..7175563 100644
> --- a/drivers/net/virtio_net.c
> +++ b/drivers/net/virtio_net.c
> @@ -146,6 +146,7 @@ struct virtnet_info {
> virtio_net_ctrl_ack ctrl_status;
> u8 ctrl_promisc;
> u8 ctrl_allmulti;
> + bool negotiated_mtu;
> };
>
> struct padded_vnet_hdr {
> @@ -1390,8 +1391,12 @@ static const struct ethtool_ops virtnet_ethtool_ops = {
>
> static int virtnet_change_mtu(struct net_device *dev, int new_mtu)
> {
> + struct virtnet_info *vi = netdev_priv(dev);
> if (new_mtu < MIN_MTU || new_mtu > MAX_MTU)
> return -E...