net/mlx5: Remove redundant error on reclaim pages

If reclaim pages was triggered by FW event and FW failed the command,
the driver should ignore as FW is aware and will handle it.

The downstream patch will add a debugfs counter on this flow for
debuggability.
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c

@@ -465,7 +465,7 @@ static int reclaim_pages_cmd(struct mlx5_core_dev *dev,
 	u32 i = 0;
 
 	if (!mlx5_cmd_is_down(dev))
-		return mlx5_cmd_exec(dev, in, in_size, out, out_size);
+		return mlx5_cmd_do(dev, in, in_size, out, out_size);
 
 	/* No hard feelings, we want our pages back! */
 	npages = MLX5_GET(manage_pages_in, in, input_num_entries);
@@ -489,7 +489,7 @@ static int reclaim_pages_cmd(struct mlx5_core_dev *dev,
 }
 
 static int reclaim_pages(struct mlx5_core_dev *dev, u16 func_id, int npages,
-			 int *nclaimed, bool ec_function)
+			 int *nclaimed, bool event, bool ec_function)
 {
 	u32 function = get_function(func_id, ec_function);
 	int outlen = MLX5_ST_SZ_BYTES(manage_pages_out);
@@ -516,7 +516,11 @@ static int reclaim_pages(struct mlx5_core_dev *dev, u16 func_id, int npages,
 	mlx5_core_dbg(dev, "func 0x%x, npages %d, outlen %d\n",
 		      func_id, npages, outlen);
 	err = reclaim_pages_cmd(dev, in, sizeof(in), out, outlen);
+	/* if triggered by FW event and failed by FW then ignore */
+	if (event && err == -EREMOTEIO)
+		err = 0;
 	if (err) {
+		err = mlx5_cmd_check(dev, err, in, out);
 		mlx5_core_err(dev, "failed reclaiming pages: err %d\n", err);
 		goto out_free;
 	}
@@ -556,7 +560,7 @@ static void pages_work_handler(struct work_struct *work)
 		release_all_pages(dev, req->func_id, req->ec_function);
 	else if (req->npages < 0)
 		err = reclaim_pages(dev, req->func_id, -1 * req->npages, NULL,
-				    req->ec_function);
+				    true, req->ec_function);
 	else if (req->npages > 0)
 		err = give_pages(dev, req->func_id, req->npages, 1, req->ec_function);
 
@@ -655,7 +659,7 @@ static int mlx5_reclaim_root_pages(struct mlx5_core_dev *dev,
 		int err;
 
 		err = reclaim_pages(dev, func_id, optimal_reclaimed_pages(),
-				    &nclaimed, mlx5_core_is_ecpf(dev));
+				    &nclaimed, false, mlx5_core_is_ecpf(dev));
 		if (err) {
 			mlx5_core_warn(dev, "failed reclaiming pages (%d) for func id 0x%x\n",
 				       err, func_id);