diff options
Diffstat (limited to 'drivers/net/ethernet/intel/e1000e/mac.c')
| -rw-r--r-- | drivers/net/ethernet/intel/e1000e/mac.c | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/drivers/net/ethernet/intel/e1000e/mac.c b/drivers/net/ethernet/intel/e1000e/mac.c index 5df7ad93f3d7..d7df2a0ed629 100644 --- a/drivers/net/ethernet/intel/e1000e/mac.c +++ b/drivers/net/ethernet/intel/e1000e/mac.c @@ -1,6 +1,8 @@ // SPDX-License-Identifier: GPL-2.0 /* Copyright(c) 1999 - 2018 Intel Corporation. */ +#include <linux/bitfield.h> + #include "e1000.h" /** @@ -13,21 +15,17 @@ **/ s32 e1000e_get_bus_info_pcie(struct e1000_hw *hw) { + struct pci_dev *pdev = hw->adapter->pdev; struct e1000_mac_info *mac = &hw->mac; struct e1000_bus_info *bus = &hw->bus; - struct e1000_adapter *adapter = hw->adapter; - u16 pcie_link_status, cap_offset; + u16 pcie_link_status; - cap_offset = adapter->pdev->pcie_cap; - if (!cap_offset) { + if (!pci_pcie_cap(pdev)) { bus->width = e1000_bus_width_unknown; } else { - pci_read_config_word(adapter->pdev, - cap_offset + PCIE_LINK_STATUS, - &pcie_link_status); - bus->width = (enum e1000_bus_width)((pcie_link_status & - PCIE_LINK_WIDTH_MASK) >> - PCIE_LINK_WIDTH_SHIFT); + pcie_capability_read_word(pdev, PCI_EXP_LNKSTA, &pcie_link_status); + bus->width = (enum e1000_bus_width)FIELD_GET(PCI_EXP_LNKSTA_NLW, + pcie_link_status); } mac->ops.set_lan_id(hw); @@ -52,7 +50,7 @@ void e1000_set_lan_id_multi_port_pcie(struct e1000_hw *hw) * for the device regardless of function swap state. */ reg = er32(STATUS); - bus->func = (reg & E1000_STATUS_FUNC_MASK) >> E1000_STATUS_FUNC_SHIFT; + bus->func = FIELD_GET(E1000_STATUS_FUNC_MASK, reg); } /** |