netdev - [patch net-next 39/42] mlxsw: reg: Add Router Algorithmic LPM ECMP Update Register

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Message-Id: <1467381910-3445-40-git-send-email-jiri@resnulli.us>
Date:	Fri,  1 Jul 2016 16:05:07 +0200
From:	Jiri Pirko <jiri@...nulli.us>
To:	netdev@...r.kernel.org
Cc:	davem@...emloft.net, idosch@...lanox.com, yotamg@...lanox.com,
	eladr@...lanox.com, nogahf@...lanox.com, ogerlitz@...lanox.com,
	sfeldma@...il.com, roopa@...ulusnetworks.com, andy@...yhouse.net,
	dsa@...ulusnetworks.com, tgraf@...g.ch, jhs@...atatu.com,
	linville@...driver.com, ivecera@...hat.com
Subject: [patch net-next 39/42] mlxsw: reg: Add Router Algorithmic LPM ECMP Update Register

From: Jiri Pirko <jiri@...lanox.com>

The RALEU register is used to mass update remote action adjacency index
and ecmp size.

Signed-off-by: Jiri Pirko <jiri@...lanox.com>
Reviewed-by: Ido Schimmel <idosch@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlxsw/reg.h | 69 +++++++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/reg.h b/drivers/net/ethernet/mellanox/mlxsw/reg.h
index a2d7870..0cc1485 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/reg.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/reg.h
@@ -4154,6 +4154,73 @@ static inline void mlxsw_reg_rauht_pack4(char *payload,
 	mlxsw_reg_rauht_dip4_set(payload, dip);
 }
 
+/* RALEU - Router Algorithmic LPM ECMP Update Register
+ * ---------------------------------------------------
+ * The register enables updating the ECMP section in the action for multiple
+ * LPM Unicast entries in a single operation. The update is executed to
+ * all entries of a {virtual router, protocol} tuple using the same ECMP group.
+ */
+#define MLXSW_REG_RALEU_ID 0x8015
+#define MLXSW_REG_RALEU_LEN 0x28
+
+static const struct mlxsw_reg_info mlxsw_reg_raleu = {
+	.id = MLXSW_REG_RALEU_ID,
+	.len = MLXSW_REG_RALEU_LEN,
+};
+
+/* reg_raleu_protocol
+ * Protocol.
+ * Access: Index
+ */
+MLXSW_ITEM32(reg, raleu, protocol, 0x00, 24, 4);
+
+/* reg_raleu_virtual_router
+ * Virtual Router ID
+ * Range is 0..cap_max_virtual_routers-1
+ * Access: Index
+ */
+MLXSW_ITEM32(reg, raleu, virtual_router, 0x00, 0, 16);
+
+/* reg_raleu_adjacency_index
+ * Adjacency Index used for matching on the existing entries.
+ * Access: Index
+ */
+MLXSW_ITEM32(reg, raleu, adjacency_index, 0x10, 0, 24);
+
+/* reg_raleu_ecmp_size
+ * ECMP Size used for matching on the existing entries.
+ * Access: Index
+ */
+MLXSW_ITEM32(reg, raleu, ecmp_size, 0x14, 0, 13);
+
+/* reg_raleu_new_adjacency_index
+ * New Adjacency Index.
+ * Access: WO
+ */
+MLXSW_ITEM32(reg, raleu, new_adjacency_index, 0x20, 0, 24);
+
+/* reg_raleu_new_ecmp_size
+ * New ECMP Size.
+ * Access: WO
+ */
+MLXSW_ITEM32(reg, raleu, new_ecmp_size, 0x24, 0, 13);
+
+static inline void mlxsw_reg_raleu_pack(char *payload,
+					enum mlxsw_reg_ralxx_protocol protocol,
+					u16 virtual_router,
+					u32 adjacency_index, u16 ecmp_size,
+					u32 new_adjacency_index,
+					u16 new_ecmp_size)
+{
+	MLXSW_REG_ZERO(raleu, payload);
+	mlxsw_reg_raleu_protocol_set(payload, protocol);
+	mlxsw_reg_raleu_virtual_router_set(payload, virtual_router);
+	mlxsw_reg_raleu_adjacency_index_set(payload, adjacency_index);
+	mlxsw_reg_raleu_ecmp_size_set(payload, ecmp_size);
+	mlxsw_reg_raleu_new_adjacency_index_set(payload, new_adjacency_index);
+	mlxsw_reg_raleu_new_ecmp_size_set(payload, new_ecmp_size);
+}
+
 /* RAUHTD - Router Algorithmic LPM Unicast Host Table Dump Register
  * ----------------------------------------------------------------
  * The RAUHTD register allows dumping entries from the Router Unicast Host
@@ -5053,6 +5120,8 @@ static inline const char *mlxsw_reg_id_str(u16 reg_id)
 		return "RALUE";
 	case MLXSW_REG_RAUHT_ID:
 		return "RAUHT";
+	case MLXSW_REG_RALEU_ID:
+		return "RALEU";
 	case MLXSW_REG_RAUHTD_ID:
 		return "RAUHTD";
 	case MLXSW_REG_MFCR_ID:
-- 
2.5.5