From: Yotam Gigi <yot...@mellanox.com>
The MPSC register allows to configure ingress packet sampling on specific
port of the mlxsw device. The sampled packets are then trapped via
PKT_SAMPLE trap.
Signed-off-by: Yotam Gigi <yot...@mellanox.com>
Signed-off-by: Jiri Pirko <j...@mellanox.com>
Reviewed-by: Ido Schimmel <ido...@mellanox.com>
Signed-off-by: Jiri Pirko <j...@mellanox.com>
---
drivers/net/ethernet/mellanox/mlxsw/reg.h | 41 +++++++++++++++++++++++++++++++
1 file changed, 41 insertions(+)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/reg.h
b/drivers/net/ethernet/mellanox/mlxsw/reg.h
index 1357fe0..9fb0316 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/reg.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/reg.h
@@ -4965,6 +4965,46 @@ static inline void mlxsw_reg_mlcr_pack(char *payload, u8
local_port,
MLXSW_REG_MLCR_DURATION_MAX : 0);
}
+/* MPSC - Monitoring Packet Sampling Configuration Register
+ * --------------------------------------------------------
+ * MPSC Register is used to configure the Packet Sampling mechanism.
+ */
+#define MLXSW_REG_MPSC_ID 0x9080
+#define MLXSW_REG_MPSC_LEN 0x1C
+
+MLXSW_REG_DEFINE(mpsc, MLXSW_REG_MPSC_ID, MLXSW_REG_MPSC_LEN);
+
+/* reg_mpsc_local_port
+ * Local port number
+ * Not supported for CPU port
+ * Access: Index
+ */
+MLXSW_ITEM32(reg, mpsc, local_port, 0x00, 16, 8);
+
+/* reg_mpsc_e
+ * Enable sampling on port local_port
+ * Access: RW
+ */
+MLXSW_ITEM32(reg, mpsc, e, 0x04, 30, 1);
+
+#define MLXSW_REG_MPSC_RATE_MAX 3500000000UL
+
+/* reg_mpsc_rate
+ * Sampling rate = 1 out of rate packets (with randomization around
+ * the point). Valid values are: 1 to MLXSW_REG_MPSC_RATE_MAX
+ * Access: RW
+ */
+MLXSW_ITEM32(reg, mpsc, rate, 0x08, 0, 32);
+
+static inline void mlxsw_reg_mpsc_pack(char *payload, u8 local_port, bool e,
+ u32 rate)
+{
+ MLXSW_REG_ZERO(mpsc, payload);
+ mlxsw_reg_mpsc_local_port_set(payload, local_port);
+ mlxsw_reg_mpsc_e_set(payload, e);
+ mlxsw_reg_mpsc_rate_set(payload, rate);
+}
+
/* SBPR - Shared Buffer Pools Register
* -----------------------------------
* The SBPR configures and retrieves the shared buffer pools and configuration.
@@ -5429,6 +5469,7 @@ static const struct mlxsw_reg_info *mlxsw_reg_infos[] = {
MLXSW_REG(mpat),
MLXSW_REG(mpar),
MLXSW_REG(mlcr),
+ MLXSW_REG(mpsc),
MLXSW_REG(sbpr),
MLXSW_REG(sbcm),
MLXSW_REG(sbpm),
--
2.7.4
