Merge branch 'mlx5-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux

This series provides some low level updates for mlx5 driver needed for
both rdma and netdev trees.

1) Termination flow steering table bits and hardware definitions.

2) Introduce the core dump HW access registers definitions.

3) Refactor and cleans-up VF representors functions handlers.

4) Renames host_params bits to function_changed bits and add the
support for eswitch functions change event in the eswitch general case.
(for both legacy and switchdev modes).

5) Potential error pointer dereference in error handling

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

1 files changed, 30 insertions, 2 deletions

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
index 6a921e24cd5e..5414e8f82d5f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
@@ -1686,13 +1686,41 @@ static int eswitch_vport_event(struct notifier_block *nb,
 	return NOTIFY_OK;
 }
 
+static int query_esw_functions(struct mlx5_core_dev *dev,
+			       u32 *out, int outlen)
+{
+	u32 in[MLX5_ST_SZ_DW(query_esw_functions_in)] = {0};
+
+	MLX5_SET(query_esw_functions_in, in, opcode,
+		 MLX5_CMD_OP_QUERY_ESW_FUNCTIONS);
+
+	return mlx5_cmd_exec(dev, in, sizeof(in), out, outlen);
+}
+
+int mlx5_esw_query_functions(struct mlx5_core_dev *dev, u16 *num_vfs)
+{
+	u32 out[MLX5_ST_SZ_DW(query_esw_functions_out)] = {0};
+	int err;
+
+	err = query_esw_functions(dev, out, sizeof(out));
+	if (err)
+		return err;
+
+	*num_vfs = MLX5_GET(query_esw_functions_out, out,
+			    host_params_context.host_num_of_vfs);
+	esw_debug(dev, "host_num_of_vfs=%d\n", *num_vfs);
+
+	return 0;
+}
+
 /* Public E-Switch API */
 #define ESW_ALLOWED(esw) ((esw) && MLX5_ESWITCH_MANAGER((esw)->dev))
 
 int mlx5_eswitch_enable_sriov(struct mlx5_eswitch *esw, int nvfs, int mode)
 {
-	int vf_nvports = 0, total_nvports = 0;
 	struct mlx5_vport *vport;
+	int total_nvports = 0;
+	u16 vf_nvports = 0;
 	int err;
 	int i, enabled_events;
 
@@ -1712,7 +1740,7 @@ int mlx5_eswitch_enable_sriov(struct mlx5_eswitch *esw, int nvfs, int mode)
 
 	if (mode == SRIOV_OFFLOADS) {
 		if (mlx5_core_is_ecpf_esw_manager(esw->dev)) {
-			err = mlx5_query_host_params_num_vfs(esw->dev, &vf_nvports);
+			err = mlx5_esw_query_functions(esw->dev, &vf_nvports);
 			if (err)
 				return err;
 			total_nvports = esw->total_vports;