netdev - [PATCH net-next 12/19] mlxsw: reg: Add Tunneling NVE Encapsulation ECN Mapping Register

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Thu, 11 Oct 2018 07:48:02 +0000
From:   Ido Schimmel <idosch@...lanox.com>
To:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>
CC:     "davem@...emloft.net" <davem@...emloft.net>,
        Jiri Pirko <jiri@...lanox.com>,
        Petr Machata <petrm@...lanox.com>, mlxsw <mlxsw@...lanox.com>,
        Ido Schimmel <idosch@...lanox.com>
Subject: [PATCH net-next 12/19] mlxsw: reg: Add Tunneling NVE Encapsulation
 ECN Mapping Register

This register performs mapping from overlay ECN to underlay ECN during
NVE encapsulation.

Signed-off-by: Ido Schimmel <idosch@...lanox.com>
Reviewed-by: Petr Machata <petrm@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlxsw/reg.h | 31 +++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/reg.h b/drivers/net/ethernet/mellanox/mlxsw/reg.h
index a8cc7a58c390..aabba7360050 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/reg.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/reg.h
@@ -8566,6 +8566,36 @@ static inline void mlxsw_reg_tnumt_pack(char *payload,
 	mlxsw_reg_tnumt_record_size_set(payload, record_size);
 }
 
+/* TNEEM - Tunneling NVE Encapsulation ECN Mapping Register
+ * --------------------------------------------------------
+ * The TNEEM register maps ECN of the IP header at the ingress to the
+ * encapsulation to the ECN of the underlay network.
+ */
+#define MLXSW_REG_TNEEM_ID 0xA012
+#define MLXSW_REG_TNEEM_LEN 0x0C
+
+MLXSW_REG_DEFINE(tneem, MLXSW_REG_TNEEM_ID, MLXSW_REG_TNEEM_LEN);
+
+/* reg_tneem_overlay_ecn
+ * ECN of the IP header in the overlay network.
+ * Access: Index
+ */
+MLXSW_ITEM32(reg, tneem, overlay_ecn, 0x04, 24, 2);
+
+/* reg_tneem_underlay_ecn
+ * ECN of the IP header in the underlay network.
+ * Access: RW
+ */
+MLXSW_ITEM32(reg, tneem, underlay_ecn, 0x04, 16, 2);
+
+static inline void mlxsw_reg_tneem_pack(char *payload, u8 overlay_ecn,
+					u8 underlay_ecn)
+{
+	MLXSW_REG_ZERO(tneem, payload);
+	mlxsw_reg_tneem_overlay_ecn_set(payload, overlay_ecn);
+	mlxsw_reg_tneem_underlay_ecn_set(payload, underlay_ecn);
+}
+
 /* TNPC - Tunnel Port Configuration Register
  * -----------------------------------------
  * The TNPC register is used for tunnel port configuration.
@@ -9162,6 +9192,7 @@ static const struct mlxsw_reg_info *mlxsw_reg_infos[] = {
 	MLXSW_REG(mgpc),
 	MLXSW_REG(tngcr),
 	MLXSW_REG(tnumt),
+	MLXSW_REG(tneem),
 	MLXSW_REG(tnpc),
 	MLXSW_REG(tigcr),
 	MLXSW_REG(sbpr),
-- 
2.17.1