netdev - [PATCH net-next 08/15] mlxsw: resources: Add resource identifier for maximum number of FIDs

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Date:   Sun, 24 Jul 2022 11:03:22 +0300
From:   Ido Schimmel <idosch@...dia.com>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
        edumazet@...gle.com, petrm@...dia.com, amcohen@...dia.com,
        danieller@...dia.com, richardcochran@...il.com, mlxsw@...dia.com,
        Ido Schimmel <idosch@...dia.com>
Subject: [PATCH net-next 08/15] mlxsw: resources: Add resource identifier for maximum number of FIDs

From: Amit Cohen <amcohen@...dia.com>

Add a resource identifier for maximum number of FIDs so that it could be
later used to query the information from firmware.

In Spectrum-2 and Spectrum-3, the correction field of PTP packets which are
sent as control packets is not updated at egress port. To overcome this
limitation, some packets will be sent as data packets. The header should
include FID, which is supposed to be 'Max FID + port - 1'. As preparation,
add the required resource, to be able to query the value from firmware
later.

Signed-off-by: Amit Cohen <amcohen@...dia.com>
Reviewed-by: Petr Machata <petrm@...dia.com>
Signed-off-by: Ido Schimmel <idosch@...dia.com>
---
 drivers/net/ethernet/mellanox/mlxsw/resources.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/resources.h b/drivers/net/ethernet/mellanox/mlxsw/resources.h
index 826e47fb4586..19ae0d1c74a8 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/resources.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/resources.h
@@ -24,6 +24,7 @@ enum mlxsw_res_id {
 	MLXSW_RES_ID_COUNTER_SIZE_PACKETS_BYTES,
 	MLXSW_RES_ID_COUNTER_SIZE_ROUTER_BASIC,
 	MLXSW_RES_ID_MAX_SYSTEM_PORT,
+	MLXSW_RES_ID_FID,
 	MLXSW_RES_ID_MAX_LAG,
 	MLXSW_RES_ID_MAX_LAG_MEMBERS,
 	MLXSW_RES_ID_GUARANTEED_SHARED_BUFFER,
@@ -83,6 +84,7 @@ static u16 mlxsw_res_ids[] = {
 	[MLXSW_RES_ID_COUNTER_SIZE_PACKETS_BYTES] = 0x2443,
 	[MLXSW_RES_ID_COUNTER_SIZE_ROUTER_BASIC] = 0x2449,
 	[MLXSW_RES_ID_MAX_SYSTEM_PORT] = 0x2502,
+	[MLXSW_RES_ID_FID] = 0x2512,
 	[MLXSW_RES_ID_MAX_LAG] = 0x2520,
 	[MLXSW_RES_ID_MAX_LAG_MEMBERS] = 0x2521,
 	[MLXSW_RES_ID_GUARANTEED_SHARED_BUFFER] = 0x2805,	/* Bytes */
-- 
2.36.1