linux-kernel - [PATCH v3 0/8] PCI/treewide: PCIe capability access cleanups

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Date:   Tue, 19 Sep 2023 15:56:40 +0300
From:   Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To:     Bjorn Helgaas <bhelgaas@...gle.com>, linux-pci@...r.kernel.org,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>
Cc:     linux-kernel@...r.kernel.org,
        Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Subject: [PATCH v3 0/8] PCI/treewide: PCIe capability access cleanups

Instead of custom code to extract the PCIe capabilities, make the code
more obvious using FIELD_GET/PREP().

Also cleanup some duplicated defines in e1000e.

This is just a step into the right direction, there's plenty of places
still to cleanup which will have to wait for another patch series.

v3:
- Remove applied patches (scsi)
- Use pci_pcie_cap() and tweak local variable (e1000e)
- Use the correct prefix for RDMA/hfi1

v2:
- Remove extract_width() and use FIELD_GET() directly (IB/hfi1)
- Convert other fields beside Link Width ones
- Remove useless u8 casts (scsi: esas2r)
- e1000e:
        - Remove defines that duplicate pci_regs.h ones
        - Convert to pcie_capability_read_word()


Ilpo Järvinen (8):
  RDMA/hfi1: Use FIELD_GET() to extract Link Width
  media: cobalt: Use FIELD_GET() to extract Link Width
  igb: Use FIELD_GET() to extract Link Width
  PCI: tegra194: Use FIELD_GET()/FIELD_PREP() with Link Width fields
  PCI: mvebu: Use FIELD_PREP() with Link Width
  PCI: Use FIELD_GET() to extract Link Width
  e1000e: Use PCI_EXP_LNKSTA_NLW & FIELD_GET() instead of custom
    defines/code
  e1000e: Use pcie_capability_read_word() for reading LNKSTA

 drivers/infiniband/hw/hfi1/pcie.c           |  9 ++-------
 drivers/media/pci/cobalt/cobalt-driver.c    | 11 ++++++-----
 drivers/net/ethernet/intel/e1000e/defines.h |  3 ---
 drivers/net/ethernet/intel/e1000e/mac.c     | 18 ++++++++----------
 drivers/net/ethernet/intel/igb/e1000_mac.c  |  6 +++---
 drivers/pci/controller/dwc/pcie-tegra194.c  |  9 ++++-----
 drivers/pci/controller/pci-mvebu.c          |  2 +-
 drivers/pci/pci-sysfs.c                     |  5 ++---
 drivers/pci/pci.c                           |  6 +++---
 9 files changed, 29 insertions(+), 40 deletions(-)

-- 
2.30.2