Patch "net/mlxfw: Drop hard coded max FW flash image size" has been added to the 5.4-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    net/mlxfw: Drop hard coded max FW flash image size

to the 5.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     net-mlxfw-drop-hard-coded-max-fw-flash-image-size.patch
and it can be found in the queue-5.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit cae7d3524ac5e2379f7b93cbd634554a938cb9f0
Author: Maher Sanalla <msanalla@xxxxxxxxxx>
Date:   Thu Jan 16 14:33:16 2025 +0200

    net/mlxfw: Drop hard coded max FW flash image size
    
    [ Upstream commit 70d81f25cc92cc4e914516c9935ae752f27d78ad ]
    
    Currently, mlxfw kernel module limits FW flash image size to be
    10MB at most, preventing the ability to burn recent BlueField-3
    FW that exceeds the said size limit.
    
    Thus, drop the hard coded limit. Instead, rely on FW's
    max_component_size threshold that is reported in MCQI register
    as the size limit for FW image.
    
    Fixes: 410ed13cae39 ("Add the mlxfw module for Mellanox firmware flash process")
    Signed-off-by: Maher Sanalla <msanalla@xxxxxxxxxx>
    Signed-off-by: Moshe Shemesh <moshe@xxxxxxxxxx>
    Reviewed-by: Ido Schimmel <idosch@xxxxxxxxxx>
    Tested-by: Ido Schimmel <idosch@xxxxxxxxxx>
    Reviewed-by: Michal Swiatkowski <michal.swiatkowski@xxxxxxxxxxxxxxx>
    Link: https://patch.msgid.link/1737030796-1441634-1-git-send-email-moshe@xxxxxxxxxx
    Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c b/drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c
index 29e95d0a6ad13..5fa1b7c33c54f 100644
--- a/drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c
+++ b/drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c
@@ -14,7 +14,6 @@
 #define MLXFW_FSM_STATE_WAIT_TIMEOUT_MS 30000
 #define MLXFW_FSM_STATE_WAIT_ROUNDS \
 	(MLXFW_FSM_STATE_WAIT_TIMEOUT_MS / MLXFW_FSM_STATE_WAIT_CYCLE_MS)
-#define MLXFW_FSM_MAX_COMPONENT_SIZE (10 * (1 << 20))
 
 static const char * const mlxfw_fsm_state_err_str[] = {
 	[MLXFW_FSM_STATE_ERR_ERROR] =
@@ -111,7 +110,6 @@ static int mlxfw_flash_component(struct mlxfw_dev *mlxfw_dev,
 	if (err)
 		return err;
 
-	comp_max_size = min_t(u32, comp_max_size, MLXFW_FSM_MAX_COMPONENT_SIZE);
 	if (comp->data_size > comp_max_size) {
 		pr_err("Component %d is of size %d which is bigger than limit %d\n",
 		       comp->index, comp->data_size, comp_max_size);