diff mbox series

[net-next,04/11] mlxsw: reg: Extend MDDQ by device_info

Message ID 20220425034431.3161260-5-idosch@nvidia.com (mailing list archive)
State Accepted
Commit 798e2df5067caeb38afe501decec02abdac8a0d7
Delegated to: Netdev Maintainers
Headers show
Series mlxsw: extend line card model by devices and info | expand

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netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers success CCed 6 of 6 maintainers
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/verify_fixes success No Fixes tag
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netdev/checkpatch warning WARNING: line length of 85 exceeds 80 columns
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netdev/source_inline success Was 0 now: 0

Commit Message

Ido Schimmel April 25, 2022, 3:44 a.m. UTC
From: Jiri Pirko <jiri@nvidia.com>

Extend existing MDDQ register by possibility to query information about
devices residing on a line card.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
---
 drivers/net/ethernet/mellanox/mlxsw/reg.h | 62 ++++++++++++++++++++++-
 1 file changed, 61 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/mellanox/mlxsw/reg.h b/drivers/net/ethernet/mellanox/mlxsw/reg.h
index 23589d3b160a..521c1b195a3e 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/reg.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/reg.h
@@ -11643,7 +11643,11 @@  MLXSW_ITEM32(reg, mddq, sie, 0x00, 31, 1);
 
 enum mlxsw_reg_mddq_query_type {
 	MLXSW_REG_MDDQ_QUERY_TYPE_SLOT_INFO = 1,
-	MLXSW_REG_MDDQ_QUERY_TYPE_SLOT_NAME = 3,
+	MLXSW_REG_MDDQ_QUERY_TYPE_DEVICE_INFO, /* If there are no devices
+						* on the slot, data_valid
+						* will be '0'.
+						*/
+	MLXSW_REG_MDDQ_QUERY_TYPE_SLOT_NAME,
 };
 
 /* reg_mddq_query_type
@@ -11657,6 +11661,28 @@  MLXSW_ITEM32(reg, mddq, query_type, 0x00, 16, 8);
  */
 MLXSW_ITEM32(reg, mddq, slot_index, 0x00, 0, 4);
 
+/* reg_mddq_response_msg_seq
+ * Response message sequential number. For a specific request, the response
+ * message sequential number is the following one. In addition, the last
+ * message should be 0.
+ * Access: RO
+ */
+MLXSW_ITEM32(reg, mddq, response_msg_seq, 0x04, 16, 8);
+
+/* reg_mddq_request_msg_seq
+ * Request message sequential number.
+ * The first message number should be 0.
+ * Access: Index
+ */
+MLXSW_ITEM32(reg, mddq, request_msg_seq, 0x04, 0, 8);
+
+/* reg_mddq_data_valid
+ * If set, the data in the data field is valid and contain the information
+ * for the queried index.
+ * Access: RO
+ */
+MLXSW_ITEM32(reg, mddq, data_valid, 0x08, 31, 1);
+
 /* reg_mddq_slot_info_provisioned
  * If set, the INI file is applied and the card is provisioned.
  * Access: RO
@@ -11743,6 +11769,40 @@  mlxsw_reg_mddq_slot_info_unpack(const char *payload, u8 *p_slot_index,
 	*p_card_type = mlxsw_reg_mddq_slot_info_card_type_get(payload);
 }
 
+/* reg_mddq_device_info_flash_owner
+ * If set, the device is the flash owner. Otherwise, a shared flash
+ * is used by this device (another device is the flash owner).
+ * Access: RO
+ */
+MLXSW_ITEM32(reg, mddq, device_info_flash_owner, 0x10, 30, 1);
+
+/* reg_mddq_device_info_device_index
+ * Device index. The first device should number 0.
+ * Access: RO
+ */
+MLXSW_ITEM32(reg, mddq, device_info_device_index, 0x10, 0, 8);
+
+static inline void
+mlxsw_reg_mddq_device_info_pack(char *payload, u8 slot_index,
+				u8 request_msg_seq)
+{
+	__mlxsw_reg_mddq_pack(payload, slot_index,
+			      MLXSW_REG_MDDQ_QUERY_TYPE_DEVICE_INFO);
+	mlxsw_reg_mddq_request_msg_seq_set(payload, request_msg_seq);
+}
+
+static inline void
+mlxsw_reg_mddq_device_info_unpack(const char *payload, u8 *p_response_msg_seq,
+				  bool *p_data_valid, bool *p_flash_owner,
+				  u8 *p_device_index)
+{
+	*p_response_msg_seq = mlxsw_reg_mddq_response_msg_seq_get(payload);
+	*p_data_valid = mlxsw_reg_mddq_data_valid_get(payload);
+	if (p_flash_owner)
+		*p_flash_owner = mlxsw_reg_mddq_device_info_flash_owner_get(payload);
+	*p_device_index = mlxsw_reg_mddq_device_info_device_index_get(payload);
+}
+
 #define MLXSW_REG_MDDQ_SLOT_ASCII_NAME_LEN 20
 
 /* reg_mddq_slot_ascii_name