Commit 664b3dd9 authored by Shalom Toledo's avatar Shalom Toledo Committed by David S. Miller
Browse files

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: default avatarShalom Toledo <shalomt@mellanox.com>
Acked-by: default avatarJiri Pirko <jiri@mellanox.com>
Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent d17eb403

drivers/net/ethernet/mellanox/mlxsw/core.c

+19 −0
Original line number Diff line number Diff line
@@ -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).

drivers/net/ethernet/mellanox/mlxsw/emad.h

+5 −1
Original line number Diff line number Diff line
@@ -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 */

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