freebsd-skq/sys/dev/puc/puc_bfe.h
rstone 24e43b4e62 Add MSI support to puc(9)
Add support for MSI interrupts in the puc(9) driver.  By default the driver
will prefer MSI interrupts to legacy interrupts.  A tunable,
hw.puc.msi_disable, has been added to force the allocation of legacy
interrupts.

Reviewed by:	jhb@
MFC after:	2 weeks
Sponsored by:	Sandvine Inc.
2014-03-13 15:57:25 +00:00

101 lines
3.1 KiB
C

/*-
* Copyright (c) 2006 Marcel Moolenaar
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _DEV_PUC_BFE_H_
#define _DEV_PUC_BFE_H_
#define PUC_PCI_BARS 6
struct puc_cfg;
struct puc_port;
extern const struct puc_cfg puc_pci_devices[];
extern devclass_t puc_devclass;
extern const char puc_driver_name[];
struct puc_bar {
struct resource *b_res;
int b_rid;
int b_type;
};
struct puc_softc {
device_t sc_dev;
const struct puc_cfg *sc_cfg;
intptr_t sc_cfg_data;
struct puc_bar sc_bar[PUC_PCI_BARS];
struct rman sc_ioport;
struct rman sc_iomem;
struct rman sc_irq;
struct resource *sc_ires;
void *sc_icookie;
int sc_irid;
int sc_nports;
struct puc_port *sc_port;
int sc_fastintr:1;
int sc_leaving:1;
int sc_polled:1;
int sc_msi:1;
int sc_ilr;
/*
* Bitmask of ports that use the serdev I/F. This allows for
* 32 ports on ILP32 machines and 64 ports on LP64 machines.
*/
u_long sc_serdevs;
};
struct puc_bar *puc_get_bar(struct puc_softc *sc, int rid);
int puc_bfe_attach(device_t);
int puc_bfe_detach(device_t);
int puc_bfe_probe(device_t, const struct puc_cfg *);
int puc_bus_child_location_str(device_t, device_t, char *, size_t);
int puc_bus_child_pnpinfo_str(device_t, device_t, char *, size_t);
struct resource *puc_bus_alloc_resource(device_t, device_t, int, int *, u_long,
u_long, u_long, u_int);
int puc_bus_get_resource(device_t, device_t, int, int, u_long *, u_long *);
int puc_bus_print_child(device_t, device_t);
int puc_bus_read_ivar(device_t, device_t, int, uintptr_t *);
int puc_bus_release_resource(device_t, device_t, int, int, struct resource *);
int puc_bus_setup_intr(device_t, device_t, struct resource *, int,
driver_filter_t *, driver_intr_t *, void *, void **);
int puc_bus_teardown_intr(device_t, device_t, struct resource *, void *);
SYSCTL_DECL(_hw_puc);
#endif /* _DEV_PUC_BFE_H_ */