Re: [PATCH v2 1/5] PCI: endpoint: Add reserved region type for MSI-X Table and PBA

[Niklas Cassel <cassel@kernel.org>]

On Tue, Mar 03, 2026 at 12:50:00PM +0530, Manikanta Maddireddy wrote:
> Add PCI_EPC_BAR_RSVD_MSIX_TBL_RAM and PCI_EPC_BAR_RSVD_MSIX_PBA_RAM to
> enum pci_epc_bar_rsvd_region_type so that Endpoint controllers can
> describe hardware-owned MSI-X Table and PBA (Pending Bit Array) regions
> behind a BAR_RESERVED BAR.
> 
> Signed-off-by: Manikanta Maddireddy <mmaddireddy@nvidia.com>
> ---
> v2: Split MSI-X pci_epc_bar_rsvd_region_type for both MSI-X table and PBA
> 
>  include/linux/pci-epc.h | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/include/linux/pci-epc.h b/include/linux/pci-epc.h
> index c181c6d107b7..fb3f34829d2b 100644
> --- a/include/linux/pci-epc.h
> +++ b/include/linux/pci-epc.h
> @@ -214,6 +214,8 @@ enum pci_epc_bar_type {
>  /**
>   * enum pci_epc_bar_rsvd_region_type - type of a fixed subregion behind a BAR
>   * @PCI_EPC_BAR_RSVD_DMA_CTRL_MMIO: Integrated DMA controller MMIO window
> + * @PCI_EPC_BAR_RSVD_MSIX_TBL_RAM: MSI-X table structure
> + * @PCI_EPC_BAR_RSVD_MSIX_PBA_RAM: MSI-X PBA structures

s/MSI-X PBA structures/MSI-X PBA structure/

PCIe 6.0 7.7.2 MSI-X Capability and Table Structure
references this as:
MSI-X Table structure and an MSI-X PBA structure


With that:
Reviewed-by: Niklas Cassel <cassel@kernel.org>