9725900ba6
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.
101 lines
3.1 KiB
C
101 lines
3.1 KiB
C
/*-
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* Copyright (c) 2006 Marcel Moolenaar
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _DEV_PUC_BFE_H_
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#define _DEV_PUC_BFE_H_
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#define PUC_PCI_BARS 6
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struct puc_cfg;
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struct puc_port;
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extern const struct puc_cfg puc_pci_devices[];
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extern devclass_t puc_devclass;
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extern const char puc_driver_name[];
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struct puc_bar {
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struct resource *b_res;
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int b_rid;
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int b_type;
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};
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struct puc_softc {
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device_t sc_dev;
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const struct puc_cfg *sc_cfg;
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intptr_t sc_cfg_data;
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struct puc_bar sc_bar[PUC_PCI_BARS];
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struct rman sc_ioport;
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struct rman sc_iomem;
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struct rman sc_irq;
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struct resource *sc_ires;
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void *sc_icookie;
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int sc_irid;
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int sc_nports;
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struct puc_port *sc_port;
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int sc_fastintr:1;
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int sc_leaving:1;
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int sc_polled:1;
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int sc_msi:1;
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int sc_ilr;
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/*
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* Bitmask of ports that use the serdev I/F. This allows for
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* 32 ports on ILP32 machines and 64 ports on LP64 machines.
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*/
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u_long sc_serdevs;
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};
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struct puc_bar *puc_get_bar(struct puc_softc *sc, int rid);
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int puc_bfe_attach(device_t);
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int puc_bfe_detach(device_t);
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int puc_bfe_probe(device_t, const struct puc_cfg *);
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int puc_bus_child_location_str(device_t, device_t, char *, size_t);
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int puc_bus_child_pnpinfo_str(device_t, device_t, char *, size_t);
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struct resource *puc_bus_alloc_resource(device_t, device_t, int, int *, u_long,
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u_long, u_long, u_int);
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int puc_bus_get_resource(device_t, device_t, int, int, u_long *, u_long *);
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int puc_bus_print_child(device_t, device_t);
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int puc_bus_read_ivar(device_t, device_t, int, uintptr_t *);
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int puc_bus_release_resource(device_t, device_t, int, int, struct resource *);
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int puc_bus_setup_intr(device_t, device_t, struct resource *, int,
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driver_filter_t *, driver_intr_t *, void *, void **);
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int puc_bus_teardown_intr(device_t, device_t, struct resource *, void *);
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SYSCTL_DECL(_hw_puc);
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#endif /* _DEV_PUC_BFE_H_ */
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