From f146c7bc85a51f95c05e0f8173d484eb301ece78 Mon Sep 17 00:00:00 2001 From: Danilo Krummrich Date: Thu, 13 Aug 2026 18:52:04 +0200 Subject: PCI: Add pci_irq_type() to query the allocated interrupt type Add a helper that returns PCI_IRQ_MSIX, PCI_IRQ_MSI, or PCI_IRQ_INTX based on the interrupt type the PCI core selected after pci_alloc_irq_vectors(). Several drivers already open-code this check against pdev->msix_enabled and pdev->msi_enabled, or even open code this helper [1]. A common helper avoids the duplication and keeps drivers from accessing the bitfield directly (see also [2]). Acked-by: Bjorn Helgaas Tested-by: John Hubbard Link: https://elixir.bootlin.com/linux/v7.1/source/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c#L196 [1] Inspired-by: John Hubbard Link: https://lore.kernel.org/all/DKKG2QM3YJYB.Z2H2B2UXJ75N@kernel.org/ [2] Reviewed-by: Gary Guo Link: https://patch.msgid.link/20260813165234.620555-5-dakr@kernel.org [ Add missing pci_irq_type() stub for CONFIG_PCI=n. ] Signed-off-by: Danilo Krummrich --- Documentation/driver-api/target.rst | 52 +++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 Documentation/driver-api/target.rst (limited to 'Documentation/driver-api/target.rst') diff --git a/Documentation/driver-api/target.rst b/Documentation/driver-api/target.rst new file mode 100644 index 000000000..c70ca2517 --- /dev/null +++ b/Documentation/driver-api/target.rst @@ -0,0 +1,52 @@ +================================= +target and iSCSI Interfaces Guide +================================= + +Introduction and Overview +========================= + +TBD + +Target core device interfaces +============================= + +This section is blank because no kerneldoc comments have been added to +drivers/target/target_core_device.c. + +Target core transport interfaces +================================ + +.. kernel-doc:: drivers/target/target_core_transport.c + :export: + +Target-supported userspace I/O +============================== + +.. kernel-doc:: drivers/target/target_core_user.c + :doc: Userspace I/O + +.. kernel-doc:: include/uapi/linux/target_core_user.h + :doc: Ring Design + +iSCSI helper functions +====================== + +.. kernel-doc:: drivers/scsi/libiscsi.c + :export: + + +iSCSI boot information +====================== + +.. kernel-doc:: drivers/scsi/iscsi_boot_sysfs.c + :export: + +iSCSI TCP interfaces +==================== + +.. kernel-doc:: drivers/scsi/iscsi_tcp.c + :internal: + +.. kernel-doc:: drivers/scsi/libiscsi_tcp.c + :export: + -- cgit v1.3.1