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rocker: add offload_fwd_mark support

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If device flags ingress packet as "fwd offload", mark the
skb->offlaod_fwd_mark using the ingress port's dev->offlaod_fwd_mark.  This
will be the hint to the kernel that this packet has already been forwarded
by device to egress ports matching skb->offlaod_fwd_mark.

For rocker, derive port dev->offlaod_fwd_mark based on device switch ID and
port ifindex.  If port is bridged, use the bridge ifindex rather than the
port ifindex.

Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Acked-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Scott Feldman 2015-07-18 18:24:51 -07:00 committed by David S. Miller
parent 1a3b2ec93d
commit 3f98a8e636
2 changed files with 12 additions and 0 deletions
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11
drivers/net/ethernet/rocker/rocker.c
View File

@ -4822,6 +4822,7 @@ static int rocker_port_rx_proc(const struct rocker *rocker,
const struct rocker_tlv *attrs[ROCKER_TLV_RX_MAX + 1];
struct sk_buff *skb = rocker_desc_cookie_ptr_get(desc_info);
size_t rx_len;
u16 rx_flags = 0;
if (!skb)
return -ENOENT;
@ -4829,6 +4830,8 @@ static int rocker_port_rx_proc(const struct rocker *rocker,
rocker_tlv_parse_desc(attrs, ROCKER_TLV_RX_MAX, desc_info);
if (!attrs[ROCKER_TLV_RX_FRAG_LEN])
return -EINVAL;
if (attrs[ROCKER_TLV_RX_FLAGS])
rx_flags = rocker_tlv_get_u16(attrs[ROCKER_TLV_RX_FLAGS]);
rocker_dma_rx_ring_skb_unmap(rocker, attrs);
@ -4836,6 +4839,9 @@ static int rocker_port_rx_proc(const struct rocker *rocker,
skb_put(skb, rx_len);
skb->protocol = eth_type_trans(skb, rocker_port->dev);
if (rx_flags & ROCKER_RX_FLAGS_FWD_OFFLOAD)
skb->offload_fwd_mark = rocker_port->dev->offload_fwd_mark;
rocker_port->dev->stats.rx_packets++;
rocker_port->dev->stats.rx_bytes += skb->len;
@ -4973,6 +4979,8 @@ static int rocker_probe_port(struct rocker *rocker, unsigned int port_number)
}
rocker->ports[port_number] = rocker_port;
switchdev_port_fwd_mark_set(rocker_port->dev, NULL, false);
rocker_port_set_learning(rocker_port, SWITCHDEV_TRANS_NONE);
err = rocker_port_ig_tbl(rocker_port, SWITCHDEV_TRANS_NONE, 0);
@ -5252,6 +5260,7 @@ static int rocker_port_bridge_join(struct rocker_port *rocker_port,
rocker_port_internal_vlan_id_get(rocker_port, bridge->ifindex);
rocker_port->bridge_dev = bridge;
switchdev_port_fwd_mark_set(rocker_port->dev, bridge, true);
return rocker_port_vlan_add(rocker_port, SWITCHDEV_TRANS_NONE,
untagged_vid, 0);
@ -5272,6 +5281,8 @@ static int rocker_port_bridge_leave(struct rocker_port *rocker_port)
rocker_port_internal_vlan_id_get(rocker_port,
rocker_port->dev->ifindex);
switchdev_port_fwd_mark_set(rocker_port->dev, rocker_port->bridge_dev,
false);
rocker_port->bridge_dev = NULL;
err = rocker_port_vlan_add(rocker_port, SWITCHDEV_TRANS_NONE,

1
drivers/net/ethernet/rocker/rocker.h
View File

@ -246,6 +246,7 @@ enum {
#define ROCKER_RX_FLAGS_TCP BIT(5)
#define ROCKER_RX_FLAGS_UDP BIT(6)
#define ROCKER_RX_FLAGS_TCP_UDP_CSUM_GOOD BIT(7)
#define ROCKER_RX_FLAGS_FWD_OFFLOAD BIT(8)
enum {
ROCKER_TLV_TX_UNSPEC,