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PCI: endpoint: Add intx_capable to epc_features struct

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In struct pci_epc_features, an EPC driver can already specify if they
support MSI (by setting msi_capable) and MSI-X (by setting msix_capable).

Thus, for consistency, allow an EPC driver to specify if it supports
INTx interrupts as well (by setting intx_capable).

Since this struct is zero initialized, EPC drivers that want to claim
INTx support will need to set intx_capable to true.

Signed-off-by: Niklas Cassel <cassel@kernel.org>
[kwilczynski: add missing kernel-doc for "intx_capable"]
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Link: https://lore.kernel.org/r/20250310111016.859445-13-cassel@kernel.org
This commit is contained in:
Niklas Cassel 2025-03-10 12:10:21 +01:00 committed by Krzysztof Wilczyński
parent 24a42582b0
commit 4b313c69a3
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1 changed files with 2 additions and 0 deletions
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2
include/linux/pci-epc.h
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@ -221,6 +221,7 @@ struct pci_epc_bar_desc {
* @linkup_notifier: indicate if the EPC device can notify EPF driver on link up
* @msi_capable: indicate if the endpoint function has MSI capability
* @msix_capable: indicate if the endpoint function has MSI-X capability
* @intx_capable: indicate if the endpoint can raise INTx interrupts
* @bar: array specifying the hardware description for each BAR
* @align: alignment size required for BAR buffer allocation
*/
@ -228,6 +229,7 @@ struct pci_epc_features {
unsigned int linkup_notifier : 1;
unsigned int msi_capable : 1;
unsigned int msix_capable : 1;
unsigned int intx_capable : 1;
struct pci_epc_bar_desc bar[PCI_STD_NUM_BARS];
size_t align;
};