netdev - [PATCH net-next 01/16] mlxsw: reg: Add Monitoring Time Precision Packet Port Configuration 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]

Message-Id: <20190627135259.7292-2-idosch@idosch.org>
Date:   Thu, 27 Jun 2019 16:52:44 +0300
From:   Ido Schimmel <idosch@...sch.org>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, jiri@...lanox.com, petrm@...lanox.com,
        mlxsw@...lanox.com, Ido Schimmel <idosch@...lanox.com>
Subject: [PATCH net-next 01/16] mlxsw: reg: Add Monitoring Time Precision Packet Port Configuration Register

From: Petr Machata <petrm@...lanox.com>

This register serves for configuration of which PTP messages should be
timestamped. This is a global configuration, despite the register name.

Signed-off-by: Petr Machata <petrm@...lanox.com>
Acked-by: Jiri Pirko <jiri@...lanox.com>
Signed-off-by: Ido Schimmel <idosch@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlxsw/reg.h | 38 +++++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/reg.h b/drivers/net/ethernet/mellanox/mlxsw/reg.h
index e5f6bfd8a35a..971e336aa9ac 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/reg.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/reg.h
@@ -9148,6 +9148,43 @@ static inline void mlxsw_reg_mprs_pack(char *payload, u16 parsing_depth,
 	mlxsw_reg_mprs_vxlan_udp_dport_set(payload, vxlan_udp_dport);
 }
 
+/* MTPPPC - Time Precision Packet Port Configuration
+ * -------------------------------------------------
+ * This register serves for configuration of which PTP messages should be
+ * timestamped. This is a global configuration, despite the register name.
+ *
+ * Reserved when Spectrum-2.
+ */
+#define MLXSW_REG_MTPPPC_ID 0x9090
+#define MLXSW_REG_MTPPPC_LEN 0x28
+
+MLXSW_REG_DEFINE(mtpppc, MLXSW_REG_MTPPPC_ID, MLXSW_REG_MTPPPC_LEN);
+
+/* reg_mtpppc_ing_timestamp_message_type
+ * Bitwise vector of PTP message types to timestamp at ingress.
+ * MessageType field as defined by IEEE 1588
+ * Each bit corresponds to a value (e.g. Bit0: Sync, Bit1: Delay_Req)
+ * Default all 0
+ * Access: RW
+ */
+MLXSW_ITEM32(reg, mtpppc, ing_timestamp_message_type, 0x08, 0, 16);
+
+/* reg_mtpppc_egr_timestamp_message_type
+ * Bitwise vector of PTP message types to timestamp at egress.
+ * MessageType field as defined by IEEE 1588
+ * Each bit corresponds to a value (e.g. Bit0: Sync, Bit1: Delay_Req)
+ * Default all 0
+ * Access: RW
+ */
+MLXSW_ITEM32(reg, mtpppc, egr_timestamp_message_type, 0x0C, 0, 16);
+
+static inline void mlxsw_reg_mtpppc_pack(char *payload, u16 ing, u16 egr)
+{
+	MLXSW_REG_ZERO(mtpppc, payload);
+	mlxsw_reg_mtpppc_ing_timestamp_message_type_set(payload, ing);
+	mlxsw_reg_mtpppc_egr_timestamp_message_type_set(payload, egr);
+}
+
 /* MGPIR - Management General Peripheral Information Register
  * ----------------------------------------------------------
  * MGPIR register allows software to query the hardware and
@@ -10216,6 +10253,7 @@ static const struct mlxsw_reg_info *mlxsw_reg_infos[] = {
 	MLXSW_REG(mcda),
 	MLXSW_REG(mgpc),
 	MLXSW_REG(mprs),
+	MLXSW_REG(mtpppc),
 	MLXSW_REG(mgpir),
 	MLXSW_REG(tngcr),
 	MLXSW_REG(tnumt),
-- 
2.20.1