1 /*- 2 * Copyright (c) 2013-2015, Mellanox Technologies, Ltd. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS `AS IS' AND 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE. 24 * 25 * $FreeBSD$ 26 */ 27 28 #include <linux/kernel.h> 29 #include <linux/module.h> 30 #include <dev/mlx5/driver.h> 31 #include "mlx5_core.h" 32 33 int mlx5_core_mad_ifc(struct mlx5_core_dev *dev, const void *inb, void *outb, 34 u16 opmod, u8 port) 35 { 36 struct mlx5_mad_ifc_mbox_in *in = NULL; 37 struct mlx5_mad_ifc_mbox_out *out = NULL; 38 int err; 39 40 in = kzalloc(sizeof(*in), GFP_KERNEL); 41 42 out = kzalloc(sizeof(*out), GFP_KERNEL); 43 44 in->hdr.opcode = cpu_to_be16(MLX5_CMD_OP_MAD_IFC); 45 in->hdr.opmod = cpu_to_be16(opmod); 46 in->port = port; 47 48 memcpy(in->data, inb, sizeof(in->data)); 49 50 err = mlx5_cmd_exec(dev, in, sizeof(*in), out, sizeof(*out)); 51 if (err) 52 goto out; 53 54 if (out->hdr.status) { 55 err = mlx5_cmd_status_to_err(&out->hdr); 56 goto out; 57 } 58 59 memcpy(outb, out->data, sizeof(out->data)); 60 61 out: 62 kfree(out); 63 kfree(in); 64 return err; 65 } 66 EXPORT_SYMBOL_GPL(mlx5_core_mad_ifc); 67