Adding upstream version 6.7.7.upstream/6.7.7

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 84 insertions, 11 deletions

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index 9dbd5edff0..cec72d99d9 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -2692,6 +2692,63 @@ static void mlxsw_sp_traps_fini(struct mlxsw_sp *mlxsw_sp)
 	kfree(mlxsw_sp->trap);
 }
 
+static int mlxsw_sp_lag_pgt_init(struct mlxsw_sp *mlxsw_sp)
+{
+	char sgcr_pl[MLXSW_REG_SGCR_LEN];
+	u16 max_lag;
+	int err;
+
+	if (mlxsw_core_lag_mode(mlxsw_sp->core) !=
+	    MLXSW_CMD_MBOX_CONFIG_PROFILE_LAG_MODE_SW)
+		return 0;
+
+	err = mlxsw_core_max_lag(mlxsw_sp->core, &max_lag);
+	if (err)
+		return err;
+
+	/* In DDD mode, which we by default use, each LAG entry is 8 PGT
+	 * entries. The LAG table address needs to be 8-aligned, but that ought
+	 * to be the case, since the LAG table is allocated first.
+	 */
+	err = mlxsw_sp_pgt_mid_alloc_range(mlxsw_sp, &mlxsw_sp->lag_pgt_base,
+					   max_lag * 8);
+	if (err)
+		return err;
+	if (WARN_ON_ONCE(mlxsw_sp->lag_pgt_base % 8)) {
+		err = -EINVAL;
+		goto err_mid_alloc_range;
+	}
+
+	mlxsw_reg_sgcr_pack(sgcr_pl, mlxsw_sp->lag_pgt_base);
+	err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sgcr), sgcr_pl);
+	if (err)
+		goto err_mid_alloc_range;
+
+	return 0;
+
+err_mid_alloc_range:
+	mlxsw_sp_pgt_mid_free_range(mlxsw_sp, mlxsw_sp->lag_pgt_base,
+				    max_lag * 8);
+	return err;
+}
+
+static void mlxsw_sp_lag_pgt_fini(struct mlxsw_sp *mlxsw_sp)
+{
+	u16 max_lag;
+	int err;
+
+	if (mlxsw_core_lag_mode(mlxsw_sp->core) !=
+	    MLXSW_CMD_MBOX_CONFIG_PROFILE_LAG_MODE_SW)
+		return;
+
+	err = mlxsw_core_max_lag(mlxsw_sp->core, &max_lag);
+	if (err)
+		return;
+
+	mlxsw_sp_pgt_mid_free_range(mlxsw_sp, mlxsw_sp->lag_pgt_base,
+				    max_lag * 8);
+}
+
 #define MLXSW_SP_LAG_SEED_INIT 0xcafecafe
 
 static int mlxsw_sp_lag_init(struct mlxsw_sp *mlxsw_sp)
@@ -2723,16 +2780,27 @@ static int mlxsw_sp_lag_init(struct mlxsw_sp *mlxsw_sp)
 	if (!MLXSW_CORE_RES_VALID(mlxsw_sp->core, MAX_LAG_MEMBERS))
 		return -EIO;
 
+	err = mlxsw_sp_lag_pgt_init(mlxsw_sp);
+	if (err)
+		return err;
+
 	mlxsw_sp->lags = kcalloc(max_lag, sizeof(struct mlxsw_sp_upper),
 				 GFP_KERNEL);
-	if (!mlxsw_sp->lags)
-		return -ENOMEM;
+	if (!mlxsw_sp->lags) {
+		err = -ENOMEM;
+		goto err_kcalloc;
+	}
 
 	return 0;
+
+err_kcalloc:
+	mlxsw_sp_lag_pgt_fini(mlxsw_sp);
+	return err;
 }
 
 static void mlxsw_sp_lag_fini(struct mlxsw_sp *mlxsw_sp)
 {
+	mlxsw_sp_lag_pgt_fini(mlxsw_sp);
 	kfree(mlxsw_sp->lags);
 }
 
@@ -3113,6 +3181,15 @@ static int mlxsw_sp_init(struct mlxsw_core *mlxsw_core,
 		goto err_pgt_init;
 	}
 
+	/* Initialize before FIDs so that the LAG table is at the start of PGT
+	 * and 8-aligned without overallocation.
+	 */
+	err = mlxsw_sp_lag_init(mlxsw_sp);
+	if (err) {
+		dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize LAG\n");
+		goto err_lag_init;
+	}
+
 	err = mlxsw_sp_fids_init(mlxsw_sp);
 	if (err) {
 		dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize FIDs\n");
@@ -3143,12 +3220,6 @@ static int mlxsw_sp_init(struct mlxsw_core *mlxsw_core,
 		goto err_buffers_init;
 	}
 
-	err = mlxsw_sp_lag_init(mlxsw_sp);
-	if (err) {
-		dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize LAG\n");
-		goto err_lag_init;
-	}
-
 	/* Initialize SPAN before router and switchdev, so that those components
 	 * can call mlxsw_sp_span_respin().
 	 */
@@ -3300,8 +3371,6 @@ err_counter_pool_init:
 err_switchdev_init:
 	mlxsw_sp_span_fini(mlxsw_sp);
 err_span_init:
-	mlxsw_sp_lag_fini(mlxsw_sp);
-err_lag_init:
 	mlxsw_sp_buffers_fini(mlxsw_sp);
 err_buffers_init:
 	mlxsw_sp_devlink_traps_fini(mlxsw_sp);
@@ -3312,6 +3381,8 @@ err_traps_init:
 err_policers_init:
 	mlxsw_sp_fids_fini(mlxsw_sp);
 err_fids_init:
+	mlxsw_sp_lag_fini(mlxsw_sp);
+err_lag_init:
 	mlxsw_sp_pgt_fini(mlxsw_sp);
 err_pgt_init:
 	mlxsw_sp_kvdl_fini(mlxsw_sp);
@@ -3477,12 +3548,12 @@ static void mlxsw_sp_fini(struct mlxsw_core *mlxsw_core)
 	mlxsw_sp_counter_pool_fini(mlxsw_sp);
 	mlxsw_sp_switchdev_fini(mlxsw_sp);
 	mlxsw_sp_span_fini(mlxsw_sp);
-	mlxsw_sp_lag_fini(mlxsw_sp);
 	mlxsw_sp_buffers_fini(mlxsw_sp);
 	mlxsw_sp_devlink_traps_fini(mlxsw_sp);
 	mlxsw_sp_traps_fini(mlxsw_sp);
 	mlxsw_sp_policers_fini(mlxsw_sp);
 	mlxsw_sp_fids_fini(mlxsw_sp);
+	mlxsw_sp_lag_fini(mlxsw_sp);
 	mlxsw_sp_pgt_fini(mlxsw_sp);
 	mlxsw_sp_kvdl_fini(mlxsw_sp);
 	mlxsw_sp_parsing_fini(mlxsw_sp);
@@ -3526,6 +3597,7 @@ static const struct mlxsw_config_profile mlxsw_sp2_config_profile = {
 	},
 	.used_cqe_time_stamp_type	= 1,
 	.cqe_time_stamp_type		= MLXSW_CMD_MBOX_CONFIG_PROFILE_CQE_TIME_STAMP_TYPE_UTC,
+	.lag_mode_prefer_sw		= true,
 };
 
 /* Reduce number of LAGs from full capacity (256) to the maximum supported LAGs
@@ -3553,6 +3625,7 @@ static const struct mlxsw_config_profile mlxsw_sp4_config_profile = {
 	},
 	.used_cqe_time_stamp_type	= 1,
 	.cqe_time_stamp_type		= MLXSW_CMD_MBOX_CONFIG_PROFILE_CQE_TIME_STAMP_TYPE_UTC,
+	.lag_mode_prefer_sw		= true,
 };
 
 static void