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

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@nvidia.com>
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Tested-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Link: https://patch.msgid.link/1737030796-1441634-1-git-send-email-moshe@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c b/drivers/net/ethernet/mellanox/mlxfw/mlxfw_fsm.c
index 46245e0b24623d669c064e976f911f1e0b54d7ed..43c84900369a36fb07764249f8eadc0d0fdaa170 100644 (file)
--- 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 int mlxfw_fsm_state_errno[] = {
        [MLXFW_FSM_STATE_ERR_ERROR] = -EIO,
@@ -229,7 +228,6 @@ static int mlxfw_flash_component(struct mlxfw_dev *mlxfw_dev,
                return err;
        }
 
-       comp_max_size = min_t(u32, comp_max_size, MLXFW_FSM_MAX_COMPONENT_SIZE);
        if (comp->data_size > comp_max_size) {
                MLXFW_ERR_MSG(mlxfw_dev, extack,
                              "Component size is bigger than limit", -EINVAL);