From 664b3dd9ba58462d1f74f2c9536e500898450edc Mon Sep 17 00:00:00 2001 From: Shalom Toledo Date: Tue, 12 Nov 2019 08:48:26 +0200 Subject: [PATCH] mlxsw: core: Add EMAD string TLV Add EMAD string TLV, an ASCII string the driver can receive from the firmware in case of an error. Signed-off-by: Shalom Toledo Acked-by: Jiri Pirko Signed-off-by: Ido Schimmel Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlxsw/core.c | 19 +++++++++++++++++++ drivers/net/ethernet/mellanox/mlxsw/emad.h | 6 +++++- 2 files changed, 24 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/mellanox/mlxsw/core.c b/drivers/net/ethernet/mellanox/mlxsw/core.c index 698c7bcb1aad..a50a36f9584b 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/core.c +++ b/drivers/net/ethernet/mellanox/mlxsw/core.c @@ -249,6 +249,25 @@ MLXSW_ITEM32(emad, op_tlv, class, 0x04, 0, 8); */ MLXSW_ITEM64(emad, op_tlv, tid, 0x08, 0, 64); +/* emad_string_tlv_type + * Type of the TLV. + * Must be set to 0x2 (string TLV). + */ +MLXSW_ITEM32(emad, string_tlv, type, 0x00, 27, 5); + +/* emad_string_tlv_len + * Length of the string TLV in u32. + */ +MLXSW_ITEM32(emad, string_tlv, len, 0x00, 16, 11); + +#define MLXSW_EMAD_STRING_TLV_STRING_LEN 128 + +/* emad_string_tlv_string + * String provided by the device's firmware in case of erroneous register access + */ +MLXSW_ITEM_BUF(emad, string_tlv, string, 0x04, + MLXSW_EMAD_STRING_TLV_STRING_LEN); + /* emad_reg_tlv_type * Type of the TLV. * Must be set to 0x3 (register TLV). diff --git a/drivers/net/ethernet/mellanox/mlxsw/emad.h b/drivers/net/ethernet/mellanox/mlxsw/emad.h index 5d7c78419fa7..acfbbec52424 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/emad.h +++ b/drivers/net/ethernet/mellanox/mlxsw/emad.h @@ -19,7 +19,8 @@ enum { MLXSW_EMAD_TLV_TYPE_END, MLXSW_EMAD_TLV_TYPE_OP, - MLXSW_EMAD_TLV_TYPE_REG = 0x3, + MLXSW_EMAD_TLV_TYPE_STRING, + MLXSW_EMAD_TLV_TYPE_REG, }; /* OP TLV */ @@ -86,6 +87,9 @@ enum { MLXSW_EMAD_OP_TLV_METHOD_EVENT = 5, }; +/* STRING TLV */ +#define MLXSW_EMAD_STRING_TLV_LEN 33 /* Length in u32 */ + /* END TLV */ #define MLXSW_EMAD_END_TLV_LEN 1 /* Length in u32 */ -- 2.11.0