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Message-ID: <147164234934.15412.10180837031828143039.stgit@ahduyck-desk.amr.corp.intel.com>
Date: Fri, 19 Aug 2016 14:32:29 -0700
From: Alexander Duyck <alexander.h.duyck@...el.com>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net
Subject: [net-next PATCH] ethtool: Add support for SCTP verification tag in
Rx NFC
The i40e hardware has support for SCTP filtering via Rx NFC however the
default configuration expects us to include the verification tag as a part
of the filter. In order to support that I need to be able to transfer that
data through the ethtool interface via a new structure.
This patch adds a new structure to allow us to pass the verification tag
for IPv4 or IPv6 SCTP traffic.
Signed-off-by: Alexander Duyck <alexander.h.duyck@...el.com>
---
include/uapi/linux/ethtool.h | 50 +++++++++++++++++++++++++++++++++++++++---
1 file changed, 46 insertions(+), 4 deletions(-)
diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h
index b8f38e8..12ba8ac 100644
--- a/include/uapi/linux/ethtool.h
+++ b/include/uapi/linux/ethtool.h
@@ -708,7 +708,7 @@ enum ethtool_flags {
* @pdst: Destination port
* @tos: Type-of-service
*
- * This can be used to specify a TCP/IPv4, UDP/IPv4 or SCTP/IPv4 flow.
+ * This can be used to specify a TCP/IPv4 or UDP/IPv4 flow.
*/
struct ethtool_tcpip4_spec {
__be32 ip4src;
@@ -719,6 +719,27 @@ struct ethtool_tcpip4_spec {
};
/**
+ * struct ethtool_sctpip4_spec - flow specification for SCTP/IPv4
+ * @ip4src: Source host
+ * @ip4dst: Destination host
+ * @psrc: Source port
+ * @pdst: Destination port
+ * @tos: Type-of-service
+ * @vtag: Verification tag
+ *
+ * This can be used to specify a SCTP/IPv4 flow.
+ */
+struct ethtool_sctpip4_spec {
+ __be32 ip4src;
+ __be32 ip4dst;
+ __be16 psrc;
+ __be16 pdst;
+ __u8 tos;
+ /* 3 byte hole */
+ __be32 vtag;
+};
+
+/**
* struct ethtool_ah_espip4_spec - flow specification for IPsec/IPv4
* @ip4src: Source host
* @ip4dst: Destination host
@@ -762,7 +783,7 @@ struct ethtool_usrip4_spec {
* @pdst: Destination port
* @tclass: Traffic Class
*
- * This can be used to specify a TCP/IPv6, UDP/IPv6 or SCTP/IPv6 flow.
+ * This can be used to specify a TCP/IPv6 or UDP/IPv6 flow.
*/
struct ethtool_tcpip6_spec {
__be32 ip6src[4];
@@ -773,6 +794,27 @@ struct ethtool_tcpip6_spec {
};
/**
+ * struct ethtool_sctpip6_spec - flow specification for SCTP/IPv6
+ * @ip6src: Source host
+ * @ip6dst: Destination host
+ * @psrc: Source port
+ * @pdst: Destination port
+ * @tclass: Traffic Class
+ * @vtag: Verification tag
+ *
+ * This can be used to specify a SCTP/IPv6 flow.
+ */
+struct ethtool_sctpip6_spec {
+ __be32 ip6src[4];
+ __be32 ip6dst[4];
+ __be16 psrc;
+ __be16 pdst;
+ __u8 tclass;
+ /* 3 byte hole */
+ __be32 vtag;
+};
+
+/**
* struct ethtool_ah_espip6_spec - flow specification for IPsec/IPv6
* @ip6src: Source host
* @ip6dst: Destination host
@@ -807,13 +849,13 @@ struct ethtool_usrip6_spec {
union ethtool_flow_union {
struct ethtool_tcpip4_spec tcp_ip4_spec;
struct ethtool_tcpip4_spec udp_ip4_spec;
- struct ethtool_tcpip4_spec sctp_ip4_spec;
+ struct ethtool_sctpip4_spec sctp_ip4_spec;
struct ethtool_ah_espip4_spec ah_ip4_spec;
struct ethtool_ah_espip4_spec esp_ip4_spec;
struct ethtool_usrip4_spec usr_ip4_spec;
struct ethtool_tcpip6_spec tcp_ip6_spec;
struct ethtool_tcpip6_spec udp_ip6_spec;
- struct ethtool_tcpip6_spec sctp_ip6_spec;
+ struct ethtool_sctpip6_spec sctp_ip6_spec;
struct ethtool_ah_espip6_spec ah_ip6_spec;
struct ethtool_ah_espip6_spec esp_ip6_spec;
struct ethtool_usrip6_spec usr_ip6_spec;
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