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authorEli Cohen <eli@mellanox.com>2020-05-27 08:35:03 +0300
committerSaeed Mahameed <saeedm@mellanox.com>2020-05-29 21:20:20 -0700
commit86ae579cefffe18cb08928505d90fbc87367e8f5 (patch)
treec92e197ebad6d3f196f0aa22ea4a96173d8820c4 /include/net
parente1167e16114f78f948078749aa1608a785f65807 (diff)
downloadlinux-86ae579cefffe18cb08928505d90fbc87367e8f5.tar.bz2
net: Make mpls_entry_encode() available for generic users
Move mpls_entry_encode() from net/mpls/internal.h to include/net/mpls.h and make it available for other users. Specifically, hardware driver that offload MPLS can benefit from that. Suggested-by: Jakub Kicinski <kuba@kernel.org> Suggested-by: David Ahern <dsahern@gmail.com> Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'include/net')
-rw-r--r--include/net/mpls.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/include/net/mpls.h b/include/net/mpls.h
index ccaf238e8ea7..0bb7944e7b08 100644
--- a/include/net/mpls.h
+++ b/include/net/mpls.h
@@ -8,6 +8,7 @@
#include <linux/if_ether.h>
#include <linux/netdevice.h>
+#include <linux/mpls.h>
#define MPLS_HLEN 4
@@ -25,4 +26,20 @@ static inline struct mpls_shim_hdr *mpls_hdr(const struct sk_buff *skb)
{
return (struct mpls_shim_hdr *)skb_network_header(skb);
}
+
+static inline struct mpls_shim_hdr mpls_entry_encode(u32 label,
+ unsigned int ttl,
+ unsigned int tc,
+ bool bos)
+{
+ struct mpls_shim_hdr result;
+
+ result.label_stack_entry =
+ cpu_to_be32((label << MPLS_LS_LABEL_SHIFT) |
+ (tc << MPLS_LS_TC_SHIFT) |
+ (bos ? (1 << MPLS_LS_S_SHIFT) : 0) |
+ (ttl << MPLS_LS_TTL_SHIFT));
+ return result;
+}
+
#endif