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nfp: flower: refactor shared ip header in match offload 

Refactored shared ip header code for IPv4 and IPv6 in match offload.

Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pieter Jansen van Vuuren 2018-03-26 10:16:37 +02:00 committed by David S. Miller
parent 90c00f8154
commit 07e1671cfc
2 changed files with 38 additions and 42 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
drivers/net/ethernet/netronome/nfp/flower/cmsg.h
View File

@ -260,6 +260,13 @@ struct nfp_flower_tp_ports {
__be16 port_dst;
};
struct nfp_flower_ip_ext {
u8 tos;
u8 proto;
u8 ttl;
u8 flags;
};
/* L3 IPv4 details (3W/12B)
* 3 2 1
* 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
@ -272,10 +279,7 @@ struct nfp_flower_tp_ports {
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
struct nfp_flower_ipv4 {
u8 tos;
u8 proto;
u8 ttl;
u8 flags;
struct nfp_flower_ip_ext ip_ext;
__be32 ipv4_src;
__be32 ipv4_dst;
};
@ -284,7 +288,7 @@ struct nfp_flower_ipv4 {
* 3 2 1
* 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | DSCP |ECN| protocol | reserved |
* | DSCP |ECN| protocol | ttl | flags |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | ipv6_exthdr | res | ipv6_flow_label |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
@ -306,10 +310,7 @@ struct nfp_flower_ipv4 {
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
struct nfp_flower_ipv6 {
u8 tos;
u8 proto;
u8 ttl;
u8 reserved;
struct nfp_flower_ip_ext ip_ext;
__be32 ipv6_flow_label_exthdr;
struct in6_addr ipv6_src;
struct in6_addr ipv6_dst;

61
drivers/net/ethernet/netronome/nfp/flower/match.c
View File

@ -146,26 +146,15 @@ nfp_flower_compile_tport(struct nfp_flower_tp_ports *frame,
}
static void
nfp_flower_compile_ipv4(struct nfp_flower_ipv4 *frame,
struct tc_cls_flower_offload *flow,
bool mask_version)
nfp_flower_compile_ip_ext(struct nfp_flower_ip_ext *frame,
struct tc_cls_flower_offload *flow,
bool mask_version)
{
struct fl_flow_key *target = mask_version ? flow->mask : flow->key;
struct flow_dissector_key_ipv4_addrs *addr;
struct flow_dissector_key_basic *basic;
memset(frame, 0, sizeof(struct nfp_flower_ipv4));
if (dissector_uses_key(flow->dissector,
FLOW_DISSECTOR_KEY_IPV4_ADDRS)) {
addr = skb_flow_dissector_target(flow->dissector,
FLOW_DISSECTOR_KEY_IPV4_ADDRS,
target);
frame->ipv4_src = addr->src;
frame->ipv4_dst = addr->dst;
}
if (dissector_uses_key(flow->dissector, FLOW_DISSECTOR_KEY_BASIC)) {
struct flow_dissector_key_basic *basic;
basic = skb_flow_dissector_target(flow->dissector,
FLOW_DISSECTOR_KEY_BASIC,
target);
@ -203,6 +192,28 @@ nfp_flower_compile_ipv4(struct nfp_flower_ipv4 *frame,
}
}
static void
nfp_flower_compile_ipv4(struct nfp_flower_ipv4 *frame,
struct tc_cls_flower_offload *flow,
bool mask_version)
{
struct fl_flow_key *target = mask_version ? flow->mask : flow->key;
struct flow_dissector_key_ipv4_addrs *addr;
memset(frame, 0, sizeof(struct nfp_flower_ipv4));
if (dissector_uses_key(flow->dissector,
FLOW_DISSECTOR_KEY_IPV4_ADDRS)) {
addr = skb_flow_dissector_target(flow->dissector,
FLOW_DISSECTOR_KEY_IPV4_ADDRS,
target);
frame->ipv4_src = addr->src;
frame->ipv4_dst = addr->dst;
}
nfp_flower_compile_ip_ext(&frame->ip_ext, flow, mask_version);
}
static void
nfp_flower_compile_ipv6(struct nfp_flower_ipv6 *frame,
struct tc_cls_flower_offload *flow,
@ -210,7 +221,6 @@ nfp_flower_compile_ipv6(struct nfp_flower_ipv6 *frame,
{
struct fl_flow_key *target = mask_version ? flow->mask : flow->key;
struct flow_dissector_key_ipv6_addrs *addr;
struct flow_dissector_key_basic *basic;
memset(frame, 0, sizeof(struct nfp_flower_ipv6));
@ -223,22 +233,7 @@ nfp_flower_compile_ipv6(struct nfp_flower_ipv6 *frame,
frame->ipv6_dst = addr->dst;
}
if (dissector_uses_key(flow->dissector, FLOW_DISSECTOR_KEY_BASIC)) {
basic = skb_flow_dissector_target(flow->dissector,
FLOW_DISSECTOR_KEY_BASIC,
target);
frame->proto = basic->ip_proto;
}
if (dissector_uses_key(flow->dissector, FLOW_DISSECTOR_KEY_IP)) {
struct flow_dissector_key_ip *flow_ip;
flow_ip = skb_flow_dissector_target(flow->dissector,
FLOW_DISSECTOR_KEY_IP,
target);
frame->tos = flow_ip->tos;
frame->ttl = flow_ip->ttl;
}
nfp_flower_compile_ip_ext(&frame->ip_ext, flow, mask_version);
}
static void