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

From: Ilpo Järvinen
Date: Tue Sep 19 2023 - 08:57:07 EST


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(-)

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2.30.2