linux-kernel - [RFC PATCH net-next 06/10] mlxsw: reg: Port Diagnostics Database Register

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Date:   Sun,  7 Jun 2020 17:59:41 +0300
From:   Amit Cohen <amitc@...lanox.com>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, kuba@...nel.org, corbet@....net,
        jiri@...lanox.com, idosch@...lanox.com, shuah@...nel.org,
        mkubecek@...e.cz, gustavo@...eddedor.com, amitc@...lanox.com,
        cforno12@...ux.vnet.ibm.com, andrew@...n.ch, f.fainelli@...il.com,
        linux@...pel-privat.de, alexandru.ardelean@...log.com,
        ayal@...lanox.com, petrm@...lanox.com, mlxsw@...lanox.com,
        liuhangbin@...il.com, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org
Subject: [RFC PATCH net-next 06/10] mlxsw: reg: Port Diagnostics Database Register

The PDDR register enables to read the Phy debug database.

Signed-off-by: Amit Cohen <amitc@...lanox.com>
Reviewed-by: Petr Machata <petrm@...lanox.com>
Reviewed-by: Jiri Pirko <jiri@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlxsw/reg.h | 51 +++++++++++++++++++++++
 1 file changed, 51 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/reg.h b/drivers/net/ethernet/mellanox/mlxsw/reg.h
index fcb88d4271bf..b76c839223b5 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/reg.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/reg.h
@@ -5438,6 +5438,56 @@ static inline void mlxsw_reg_pplr_pack(char *payload, u8 local_port,
 				 MLXSW_REG_PPLR_LB_TYPE_BIT_PHY_LOCAL : 0);
 }
 
+/* PDDR - Port Diagnostics Database Register
+ * -----------------------------------------
+ * The PDDR enables to read the Phy debug database
+ */
+#define MLXSW_REG_PDDR_ID 0x5031
+#define MLXSW_REG_PDDR_LEN 0x100
+
+MLXSW_REG_DEFINE(pddr, MLXSW_REG_PDDR_ID, MLXSW_REG_PDDR_LEN);
+
+/* reg_pddr_local_port
+ * Local port number.
+ * Access: Index
+ */
+MLXSW_ITEM32(reg, pddr, local_port, 0x00, 16, 8);
+
+enum mlxsw_reg_pddr_page_select {
+	MLXSW_REG_PDDR_PAGE_SELECT_TROUBLESHOOTING_INFO = 1,
+};
+
+/* reg_pddr_page_select
+ * Page select index.
+ * Access: Index
+ */
+MLXSW_ITEM32(reg, pddr, page_select, 0x04, 0, 8);
+
+enum mlxsw_reg_pddr_trblsh_group_opcode {
+	/* Monitor opcodes */
+	MLXSW_REG_PDDR_TRBLSH_GROUP_OPCODE_MONITOR,
+};
+
+/* reg_pddr_group_opcode
+ * Group selector.
+ * Access: Index
+ */
+MLXSW_ITEM32(reg, pddr, trblsh_group_opcode, 0x08, 0, 16);
+
+/* reg_pddr_status_opcode
+ * Group selector.
+ * Access: RO
+ */
+MLXSW_ITEM32(reg, pddr, trblsh_status_opcode, 0x0C, 0, 16);
+
+static inline void mlxsw_reg_pddr_pack(char *payload, u8 local_port,
+				       u8 page_select)
+{
+	MLXSW_REG_ZERO(pddr, payload);
+	mlxsw_reg_pddr_local_port_set(payload, local_port);
+	mlxsw_reg_pddr_page_select_set(payload, page_select);
+}
+
 /* PMTM - Port Module Type Mapping Register
  * ----------------------------------------
  * The PMTM allows query or configuration of module types.
@@ -10758,6 +10808,7 @@ static const struct mlxsw_reg_info *mlxsw_reg_infos[] = {
 	MLXSW_REG(pbmc),
 	MLXSW_REG(pspa),
 	MLXSW_REG(pplr),
+	MLXSW_REG(pddr),
 	MLXSW_REG(pmtm),
 	MLXSW_REG(htgt),
 	MLXSW_REG(hpkt),
-- 
2.20.1