diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlxsw/pci.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/pci.c | 48 |
1 files changed, 12 insertions, 36 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/pci.c b/drivers/net/ethernet/mellanox/mlxsw/pci.c index fc4557245ff4..4d271fb3de3d 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/pci.c +++ b/drivers/net/ethernet/mellanox/mlxsw/pci.c @@ -1,36 +1,5 @@ -/* - * drivers/net/ethernet/mellanox/mlxsw/pci.c - * Copyright (c) 2015 Mellanox Technologies. All rights reserved. - * Copyright (c) 2015 Jiri Pirko <jiri@mellanox.com> - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the names of the copyright holders nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ +// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 +/* Copyright (c) 2015-2018 Mellanox Technologies. All rights reserved */ #include <linux/kernel.h> #include <linux/module.h> @@ -53,8 +22,6 @@ #include "port.h" #include "resources.h" -static const char mlxsw_pci_driver_name[] = "mlxsw_pci"; - #define mlxsw_pci_write32(mlxsw_pci, reg, val) \ iowrite32be(val, (mlxsw_pci)->hw_addr + (MLXSW_PCI_ ## reg)) #define mlxsw_pci_read32(mlxsw_pci, reg) \ @@ -1750,6 +1717,7 @@ static int mlxsw_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) { const char *driver_name = pdev->driver->name; struct mlxsw_pci *mlxsw_pci; + bool called_again = false; int err; mlxsw_pci = kzalloc(sizeof(*mlxsw_pci), GFP_KERNEL); @@ -1806,10 +1774,18 @@ static int mlxsw_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) mlxsw_pci->bus_info.dev = &pdev->dev; mlxsw_pci->id = id; +again: err = mlxsw_core_bus_device_register(&mlxsw_pci->bus_info, &mlxsw_pci_bus, mlxsw_pci, false, NULL); - if (err) { + /* -EAGAIN is returned in case the FW was updated. FW needs + * a reset, so lets try to call mlxsw_core_bus_device_register() + * again. + */ + if (err == -EAGAIN && !called_again) { + called_again = true; + goto again; + } else if (err) { dev_err(&pdev->dev, "cannot register bus device\n"); goto err_bus_device_register; } |