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| author | Gustavo Pimentel <gustavo.pimentel@synopsys.com> | 2018-07-19 10:32:12 +0200 |
|---|---|---|
| committer | Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2018-07-19 11:34:23 +0100 |
| commit | 8963106eabdc56911e9b65258eb5e9a6b7b3dfda (patch) | |
| tree | ad5ea11d66f9e8bd7876fdbc77bf22f1ac3b897d /include/linux/pci-epc.h | |
| parent | 4e965ede1856ed62c7ac8b7ad905a4a285e4a9f3 (diff) | |
| download | lwn-8963106eabdc56911e9b65258eb5e9a6b7b3dfda.tar.gz lwn-8963106eabdc56911e9b65258eb5e9a6b7b3dfda.zip | |
PCI: endpoint: Add MSI-X interfaces
Add PCI_EPC_IRQ_MSIX type.
Add MSI-X callbacks signatures to the ops structure.
Add sysfs interface for set/get MSI-X capability maximum number.
Update documentation accordingly.
Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Diffstat (limited to 'include/linux/pci-epc.h')
| -rw-r--r-- | include/linux/pci-epc.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/pci-epc.h b/include/linux/pci-epc.h index 243eaa5a66ff..89f079f582df 100644 --- a/include/linux/pci-epc.h +++ b/include/linux/pci-epc.h @@ -17,6 +17,7 @@ enum pci_epc_irq_type { PCI_EPC_IRQ_UNKNOWN, PCI_EPC_IRQ_LEGACY, PCI_EPC_IRQ_MSI, + PCI_EPC_IRQ_MSIX, }; /** @@ -30,6 +31,10 @@ enum pci_epc_irq_type { * capability register * @get_msi: ops to get the number of MSI interrupts allocated by the RC from * the MSI capability register + * @set_msix: ops to set the requested number of MSI-X interrupts in the + * MSI-X capability register + * @get_msix: ops to get the number of MSI-X interrupts allocated by the RC + * from the MSI-X capability register * @raise_irq: ops to raise a legacy or MSI interrupt * @start: ops to start the PCI link * @stop: ops to stop the PCI link @@ -48,6 +53,8 @@ struct pci_epc_ops { phys_addr_t addr); int (*set_msi)(struct pci_epc *epc, u8 func_no, u8 interrupts); int (*get_msi)(struct pci_epc *epc, u8 func_no); + int (*set_msix)(struct pci_epc *epc, u8 func_no, u16 interrupts); + int (*get_msix)(struct pci_epc *epc, u8 func_no); int (*raise_irq)(struct pci_epc *epc, u8 func_no, enum pci_epc_irq_type type, u8 interrupt_num); int (*start)(struct pci_epc *epc); @@ -144,6 +151,8 @@ void pci_epc_unmap_addr(struct pci_epc *epc, u8 func_no, phys_addr_t phys_addr); int pci_epc_set_msi(struct pci_epc *epc, u8 func_no, u8 interrupts); int pci_epc_get_msi(struct pci_epc *epc, u8 func_no); +int pci_epc_set_msix(struct pci_epc *epc, u8 func_no, u16 interrupts); +int pci_epc_get_msix(struct pci_epc *epc, u8 func_no); int pci_epc_raise_irq(struct pci_epc *epc, u8 func_no, enum pci_epc_irq_type type, u8 interrupt_num); int pci_epc_start(struct pci_epc *epc); |