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 --- fs/dlm/midcomms.h | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 fs/dlm/midcomms.h (limited to 'fs/dlm/midcomms.h') diff --git a/fs/dlm/midcomms.h b/fs/dlm/midcomms.h new file mode 100644 index 000000000..7fad1d170 --- /dev/null +++ b/fs/dlm/midcomms.h @@ -0,0 +1,42 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/****************************************************************************** +******************************************************************************* +** +** Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. +** Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved. +** +** +******************************************************************************* +******************************************************************************/ + +#ifndef __MIDCOMMS_DOT_H__ +#define __MIDCOMMS_DOT_H__ + +struct midcomms_node; + +int dlm_validate_incoming_buffer(int nodeid, unsigned char *buf, int len); +int dlm_process_incoming_buffer(int nodeid, unsigned char *buf, int buflen); +struct dlm_mhandle *dlm_midcomms_get_mhandle(int nodeid, int len, char **ppc); +void dlm_midcomms_commit_mhandle(struct dlm_mhandle *mh, const void *name, + int namelen); +int dlm_midcomms_addr(int nodeid, struct sockaddr_storage *addr); +void dlm_midcomms_version_wait(void); +int dlm_midcomms_close(int nodeid); +int dlm_midcomms_start(void); +void dlm_midcomms_stop(void); +void dlm_midcomms_init(void); +void dlm_midcomms_exit(void); +void dlm_midcomms_shutdown(void); +void dlm_midcomms_add_member(int nodeid); +void dlm_midcomms_remove_member(int nodeid); +void dlm_midcomms_unack_msg_resend(int nodeid); +const char *dlm_midcomms_state(struct midcomms_node *node); +unsigned long dlm_midcomms_flags(struct midcomms_node *node); +int dlm_midcomms_send_queue_cnt(struct midcomms_node *node); +uint32_t dlm_midcomms_version(struct midcomms_node *node); +int dlm_midcomms_rawmsg_send(struct midcomms_node *node, void *buf, + int buflen); +struct kmem_cache *dlm_midcomms_cache_create(void); + +#endif /* __MIDCOMMS_DOT_H__ */ + -- cgit v1.3.1