On Wed, May 14, 2014 at 11:57 PM, Joe Stringer <[email protected]> wrote:
> Signed-off-by: Joe Stringer <[email protected]>
> ---
> v3: First post.
> ---
> lib/odp-util.c | 41 +++++++++++++++++++++++++----------------
> 1 file changed, 25 insertions(+), 16 deletions(-)
>
> diff --git a/lib/odp-util.c b/lib/odp-util.c
> index 6cff2f1..ff3cb7e 100644
> --- a/lib/odp-util.c
> +++ b/lib/odp-util.c
> @@ -2482,16 +2482,16 @@ ovs_to_odp_frag_mask(uint8_t nw_frag_mask)
>
> static void
> odp_flow_key_from_flow__(struct ofpbuf *buf, const struct flow *flow,
> - const struct flow *mask, odp_port_t odp_in_port,
> - size_t max_mpls_depth, bool export_mask)
> + const struct flow *mask, const struct flow *data,
> + odp_port_t odp_in_port, size_t max_mpls_depth,
> + uint64_t export_mask)
Changing export_mask from bool to uint64_t seems to be overkill. I
hope we can avoid doing this.
How about we the following prototype:
odp_flow_key_from_flow__(struct ofpbuf *buf, const struct flow *flow,
const struct flow *mask, odp_port_t odp_in_port,
size_t max_mpls_depth, bool dp_recirc, bool
export_mask)
---------------------------------------------------------> ^^^^^^^^^^^^^^^
/* dp_recirc indicates that datapath understands recirculation */
The decision of exporting recirc_id and dp_hash will be simple:
if (dp_recric) {
nl_msg_put_u32(buf, OVS_KEY_ATTR_RECIRC_ID ...)
nl_msg_put_u32(buf, OVS_KEY_ATTR_DP_HASH ... )
}
We can obtain dp_recirc value similar to max_mpls_depth.
For example: in ofproto-dpif-upcall.c we can call
ofproto_dpif_get_enable_recirc() to obtain the value.
dp_recirc can always be set to true within the user space datapath.
Would this work?
> {
> struct ovs_key_ethernet *eth_key;
> size_t encap;
> - const struct flow *data = export_mask ? mask : flow;
>
> nl_msg_put_u32(buf, OVS_KEY_ATTR_PRIORITY, data->skb_priority);
>
> - if (flow->tunnel.ip_dst || export_mask) {
> + if (flow->tunnel.ip_dst || export_mask & 1 << OVS_KEY_ATTR_TUNNEL) {
> tun_key_to_attr(buf, &data->tunnel);
> }
>
> @@ -2507,7 +2507,7 @@ odp_flow_key_from_flow__(struct ofpbuf *buf, const
> struct flow *flow,
>
> /* Add an ingress port attribute if this is a mask or 'odp_in_port'
> * is not the magical value "ODPP_NONE". */
> - if (export_mask || odp_in_port != ODPP_NONE) {
> + if (export_mask & 1 << OVS_KEY_ATTR_IN_PORT || odp_in_port != ODPP_NONE)
> {
> nl_msg_put_odp_port(buf, OVS_KEY_ATTR_IN_PORT, odp_in_port);
> }
>
> @@ -2517,7 +2517,7 @@ odp_flow_key_from_flow__(struct ofpbuf *buf, const
> struct flow *flow,
> memcpy(eth_key->eth_dst, data->dl_dst, ETH_ADDR_LEN);
>
> if (flow->vlan_tci != htons(0) || flow->dl_type == htons(ETH_TYPE_VLAN))
> {
> - if (export_mask) {
> + if (export_mask & 1 << OVS_KEY_ATTR_ETHERTYPE) {
> nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
> } else {
> nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE,
> htons(ETH_TYPE_VLAN));
> @@ -2543,7 +2543,7 @@ odp_flow_key_from_flow__(struct ofpbuf *buf, const
> struct flow *flow,
> * <none> 0xffff Any non-Ethernet II frame (except valid
> * 802.3 SNAP packet with valid eth_type).
> */
> - if (export_mask) {
> + if (export_mask & 1 << OVS_KEY_ATTR_ETHERTYPE) {
> nl_msg_put_be16(buf, OVS_KEY_ATTR_ETHERTYPE, OVS_BE16_MAX);
> }
> goto unencap;
> @@ -2561,8 +2561,9 @@ odp_flow_key_from_flow__(struct ofpbuf *buf, const
> struct flow *flow,
> ipv4_key->ipv4_proto = data->nw_proto;
> ipv4_key->ipv4_tos = data->nw_tos;
> ipv4_key->ipv4_ttl = data->nw_ttl;
> - ipv4_key->ipv4_frag = export_mask ?
> ovs_to_odp_frag_mask(data->nw_frag)
> - : ovs_to_odp_frag(data->nw_frag);
> + ipv4_key->ipv4_frag = export_mask & 1 << OVS_KEY_ATTR_IPV4
> + ? ovs_to_odp_frag_mask(data->nw_frag)
> + : ovs_to_odp_frag(data->nw_frag);
> } else if (flow->dl_type == htons(ETH_TYPE_IPV6)) {
> struct ovs_key_ipv6 *ipv6_key;
>
> @@ -2574,8 +2575,9 @@ odp_flow_key_from_flow__(struct ofpbuf *buf, const
> struct flow *flow,
> ipv6_key->ipv6_proto = data->nw_proto;
> ipv6_key->ipv6_tclass = data->nw_tos;
> ipv6_key->ipv6_hlimit = data->nw_ttl;
> - ipv6_key->ipv6_frag = export_mask ?
> ovs_to_odp_frag_mask(data->nw_frag)
> - : ovs_to_odp_frag(data->nw_frag);
> + ipv6_key->ipv6_frag = export_mask & 1 << OVS_KEY_ATTR_IPV6
> + ? ovs_to_odp_frag_mask(data->nw_frag)
> + : ovs_to_odp_frag(data->nw_frag);
> } else if (flow->dl_type == htons(ETH_TYPE_ARP) ||
> flow->dl_type == htons(ETH_TYPE_RARP)) {
> struct ovs_key_arp *arp_key;
> @@ -2646,8 +2648,9 @@ odp_flow_key_from_flow__(struct ofpbuf *buf, const
> struct flow *flow,
> if (flow->tp_dst == htons(0)
> && (flow->tp_src == htons(ND_NEIGHBOR_SOLICIT)
> || flow->tp_src == htons(ND_NEIGHBOR_ADVERT))
> - && (!export_mask || (data->tp_src == htons(0xffff)
> - && data->tp_dst == htons(0xffff)))) {
> + && (!(export_mask & 1 << OVS_KEY_ATTR_ND)
> + || (data->tp_src == htons(0xffff)
> + && data->tp_dst == htons(0xffff)))) {
>
> struct ovs_key_nd *nd_key;
>
> @@ -2679,7 +2682,7 @@ void
> odp_flow_key_from_flow(struct ofpbuf *buf, const struct flow *flow,
> const struct flow *mask, odp_port_t odp_in_port)
> {
> - odp_flow_key_from_flow__(buf, flow, mask, odp_in_port, SIZE_MAX, false);
> + odp_flow_key_from_flow__(buf, flow, mask, flow, odp_in_port, SIZE_MAX,
> 0);
> }
>
> /* Appends a representation of 'mask' as OVS_KEY_ATTR_* attributes to
> @@ -2695,8 +2698,14 @@ odp_flow_key_from_mask(struct ofpbuf *buf, const
> struct flow *mask,
> const struct flow *flow, uint32_t odp_in_port_mask,
> size_t max_mpls_depth)
> {
> - odp_flow_key_from_flow__(buf, flow, mask,
> - u32_to_odp(odp_in_port_mask), max_mpls_depth,
> true);
> + uint64_t export_mask;
> +
> + export_mask = (1 << OVS_KEY_ATTR_TUNNEL | 1 << OVS_KEY_ATTR_IN_PORT
> + | 1 << OVS_KEY_ATTR_ETHERTYPE | 1 << OVS_KEY_ATTR_IPV4
> + | 1 << OVS_KEY_ATTR_IPV6 | 1 << OVS_KEY_ATTR_ND);
> + odp_flow_key_from_flow__(buf, flow, mask, mask,
> + u32_to_odp(odp_in_port_mask), max_mpls_depth,
> + export_mask);
> }
>
> /* Generate ODP flow key from the given packet metadata */
> --
> 1.7.10.4
>
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