Re: (subset) [PATCH v21 0/9] PCI: EP: Add RC-to-EP doorbell with platform MSI controller
From: Manivannan Sadhasivam
Date: Mon Jul 21 2025 - 11:18:34 EST
On Thu, 10 Jul 2025 15:13:46 -0400, Frank Li wrote:
> ┌────────────┐ ┌───────────────────────────────────┐ ┌────────────────┐
> │ │ │ │ │ │
> │ │ │ PCI Endpoint │ │ PCI Host │
> │ │ │ │ │ │
> │ │◄──┤ 1.platform_msi_domain_alloc_irqs()│ │ │
> │ │ │ │ │ │
> │ MSI ├──►│ 2.write_msi_msg() ├──►├─BAR<n> │
> │ Controller │ │ update doorbell register address│ │ │
> │ │ │ for BAR │ │ │
> │ │ │ │ │ 3. Write BAR<n>│
> │ │◄──┼───────────────────────────────────┼───┤ │
> │ │ │ │ │ │
> │ ├──►│ 4.Irq Handle │ │ │
> │ │ │ │ │ │
> │ │ │ │ │ │
> └────────────┘ └───────────────────────────────────┘ └────────────────┘
>
> [...]
Applied, thanks!
[3/9] PCI: endpoint: Add RC-to-EP doorbell support using platform MSI controller
commit: b537ffe0eb2ab458f20ec135cc2b565c63a2ea00
[4/9] PCI: endpoint: pci-ep-msi: Add MSI address/data pair mutable check
commit: 1f2ed78e43abb9ac0856a82867f64d472368a832
[5/9] PCI: endpoint: Add pci_epf_align_inbound_addr() helper for address alignment
commit: 1c2c5f9855a5cf4617bcda721c22dbd3345f06a1
[6/9] PCI: endpoint: pci-epf-test: Add doorbell test support
commit: 5d4da5f8092e5a77ae371ae1112283b59790ac22
[7/9] misc: pci_endpoint_test: Add doorbell test case
commit: a1a293e709a4ec0fa2e4253993a4b75f581c6cf2
[8/9] selftests: pci_endpoint: Add doorbell test case
commit: b964b4894fcfc72e7496cf52a33cbba39d094c5b
Best regards,
--
Manivannan Sadhasivam <mani@xxxxxxxxxx>