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 --- include/net/firewire.h | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 include/net/firewire.h (limited to 'include/net/firewire.h') diff --git a/include/net/firewire.h b/include/net/firewire.h new file mode 100644 index 000000000..8fbff8d77 --- /dev/null +++ b/include/net/firewire.h @@ -0,0 +1,27 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _NET_FIREWIRE_H +#define _NET_FIREWIRE_H + +#include + +/* Pseudo L2 address */ +#define FWNET_ALEN 16 +union fwnet_hwaddr { + u8 u[FWNET_ALEN]; + /* "Hardware address" defined in RFC2734/RF3146 */ + struct { + __be64 uniq_id; /* EUI-64 */ + u8 max_rec; /* max packet size */ + u8 sspd; /* max speed */ + u8 fifo[6]; /* FIFO addr */ + } __packed uc; +}; + +/* Pseudo L2 Header */ +#define FWNET_HLEN 18 +struct fwnet_header { + u8 h_dest[FWNET_ALEN]; /* destination address */ + __be16 h_proto; /* packet type ID field */ +} __packed; + +#endif -- cgit v1.3.1