| Message ID | 20240210012634.600301-1-cassel@kernel.org (mailing list archive) |
|---|---|
| Headers | show |
| Series | PCI endpoint BAR hardware description cleanup | expand |
Hi Niklas, On 2/10/2024 6:56 AM, Niklas Cassel wrote: > The series is based on top of: > https://git.kernel.org/pub/scm/linux/kernel/git/pci/pci.git/log/?h=endpoint > > > Hello all, > > This series cleans up the hardware description for PCI endpoint BARs. > > The problems with the existing hardware description: > -The documentation is lackluster. > -Some of the names are confusingly similar, e.g. fixed_64bit and > fixed_size, even though these are for completely unrelated things. > -The way that the BARs are defined in the endpoint controller drivers > is messy, because the left hand side is not a BAR, so you can mark a > BAR as e.g. both fixed size and reserved. > > This series tries to address all the problems above. > > Personally, I think that the code is more readable, both the endpoint > controller drivers, but also pci-epc-core.c. Thank you for cleaning this up! FWIW: Reviewed-by: Kishon Vijay Abraham I <kishon@kernel.org> > > (Oh, and as you can probably guess, I will be sending out a patch series > that adds BAR_RESIZABLE to enum pci_epc_bar_type in the coming week(s).) > > > Kind regards, > Niklas > > > Niklas Cassel (2): > PCI: endpoint: Clean up hardware description for BARs > PCI: endpoint: Drop only_64bit on reserved BARs > > drivers/pci/controller/dwc/pci-imx6.c | 3 +- > drivers/pci/controller/dwc/pci-keystone.c | 12 +++--- > .../pci/controller/dwc/pci-layerscape-ep.c | 5 ++- > drivers/pci/controller/dwc/pcie-keembay.c | 8 +++- > drivers/pci/controller/dwc/pcie-rcar-gen4.c | 4 +- > drivers/pci/controller/dwc/pcie-tegra194.c | 10 +++-- > drivers/pci/controller/dwc/pcie-uniphier-ep.c | 15 ++++++-- > drivers/pci/controller/pcie-rcar-ep.c | 14 ++++--- > drivers/pci/endpoint/functions/pci-epf-ntb.c | 4 +- > drivers/pci/endpoint/functions/pci-epf-test.c | 8 ++-- > drivers/pci/endpoint/functions/pci-epf-vntb.c | 2 +- > drivers/pci/endpoint/pci-epc-core.c | 25 +++++------- > drivers/pci/endpoint/pci-epf-core.c | 15 ++++---- > include/linux/pci-epc.h | 38 ++++++++++++++++--- > 14 files changed, 105 insertions(+), 58 deletions(-) >
On Wed, Feb 14, 2024 at 09:47:54AM +0530, Kishon Vijay Abraham I wrote: > Hi Niklas, > > On 2/10/2024 6:56 AM, Niklas Cassel wrote: > > The series is based on top of: > > https://git.kernel.org/pub/scm/linux/kernel/git/pci/pci.git/log/?h=endpoint > > > > > > Hello all, > > > > This series cleans up the hardware description for PCI endpoint BARs. > > > > The problems with the existing hardware description: > > -The documentation is lackluster. > > -Some of the names are confusingly similar, e.g. fixed_64bit and > > fixed_size, even though these are for completely unrelated things. > > -The way that the BARs are defined in the endpoint controller drivers > > is messy, because the left hand side is not a BAR, so you can mark a > > BAR as e.g. both fixed size and reserved. > > > > This series tries to address all the problems above. > > > > Personally, I think that the code is more readable, both the endpoint > > controller drivers, but also pci-epc-core.c. > > Thank you for cleaning this up! > > FWIW: > Reviewed-by: Kishon Vijay Abraham I <kishon@kernel.org> IMHO, a FWIW is quite the undersell here, as there is no R-b I would value higher than the R-b from the original author or the pci endpoint subsystem :) Kind regards, Niklas