Date: Tue, 1 Apr 2014 15:47:24 +0000 (UTC) From: Ryan Stone <rstone@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r264007 - in head/sys: conf dev/pci Message-ID: <201404011547.s31FlO2I048580@svn.freebsd.org>
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Author: rstone Date: Tue Apr 1 15:47:24 2014 New Revision: 264007 URL: http://svnweb.freebsd.org/changeset/base/264007 Log: Add a method to get the PCI RID for a device. Reviewed by: kib MFC after: 2 months Sponsored by: Sandvine Inc. Added: head/sys/dev/pci/pcib_support.c (contents, props changed) Modified: head/sys/conf/files head/sys/dev/pci/pci.c head/sys/dev/pci/pci_if.m head/sys/dev/pci/pci_pci.c head/sys/dev/pci/pcib_if.m head/sys/dev/pci/pcib_private.h head/sys/dev/pci/pcireg.h head/sys/dev/pci/pcivar.h Modified: head/sys/conf/files ============================================================================== --- head/sys/conf/files Tue Apr 1 15:06:03 2014 (r264006) +++ head/sys/conf/files Tue Apr 1 15:47:24 2014 (r264007) @@ -1951,6 +1951,7 @@ dev/pci/pci_pci.c optional pci dev/pci/pci_subr.c optional pci dev/pci/pci_user.c optional pci dev/pci/pcib_if.m standard +dev/pci/pcib_support.c standard dev/pci/vga_pci.c optional pci dev/pcn/if_pcn.c optional pcn pci dev/pdq/if_fea.c optional fea eisa Modified: head/sys/dev/pci/pci.c ============================================================================== --- head/sys/dev/pci/pci.c Tue Apr 1 15:06:03 2014 (r264006) +++ head/sys/dev/pci/pci.c Tue Apr 1 15:47:24 2014 (r264007) @@ -124,6 +124,8 @@ static void pci_resume_msix(device_t de static int pci_remap_intr_method(device_t bus, device_t dev, u_int irq); +static uint16_t pci_get_rid_method(device_t dev, device_t child); + static device_method_t pci_methods[] = { /* Device interface */ DEVMETHOD(device_probe, pci_probe), @@ -182,6 +184,7 @@ static device_method_t pci_methods[] = { DEVMETHOD(pci_release_msi, pci_release_msi_method), DEVMETHOD(pci_msi_count, pci_msi_count_method), DEVMETHOD(pci_msix_count, pci_msix_count_method), + DEVMETHOD(pci_get_rid, pci_get_rid_method), DEVMETHOD_END }; @@ -5055,3 +5058,10 @@ pci_restore_state(device_t dev) dinfo = device_get_ivars(dev); pci_cfg_restore(dev, dinfo); } + +static uint16_t +pci_get_rid_method(device_t dev, device_t child) +{ + + return (PCIB_GET_RID(device_get_parent(dev), child)); +} Modified: head/sys/dev/pci/pci_if.m ============================================================================== --- head/sys/dev/pci/pci_if.m Tue Apr 1 15:06:03 2014 (r264006) +++ head/sys/dev/pci/pci_if.m Tue Apr 1 15:47:24 2014 (r264007) @@ -159,3 +159,9 @@ METHOD int msix_count { device_t dev; device_t child; } DEFAULT null_msi_count; + +METHOD uint16_t get_rid { + device_t dev; + device_t child; +}; + Modified: head/sys/dev/pci/pci_pci.c ============================================================================== --- head/sys/dev/pci/pci_pci.c Tue Apr 1 15:06:03 2014 (r264006) +++ head/sys/dev/pci/pci_pci.c Tue Apr 1 15:47:24 2014 (r264007) @@ -93,6 +93,7 @@ static device_method_t pcib_methods[] = DEVMETHOD(pcib_release_msix, pcib_release_msix), DEVMETHOD(pcib_map_msi, pcib_map_msi), DEVMETHOD(pcib_power_for_sleep, pcib_power_for_sleep), + DEVMETHOD(pcib_get_rid, pcib_get_rid), DEVMETHOD_END }; @@ -1934,3 +1935,4 @@ pcib_power_for_sleep(device_t pcib, devi bus = device_get_parent(pcib); return (PCIB_POWER_FOR_SLEEP(bus, dev, pstate)); } + Modified: head/sys/dev/pci/pcib_if.m ============================================================================== --- head/sys/dev/pci/pcib_if.m Tue Apr 1 15:06:03 2014 (r264006) +++ head/sys/dev/pci/pcib_if.m Tue Apr 1 15:47:24 2014 (r264007) @@ -154,3 +154,12 @@ METHOD int power_for_sleep { device_t dev; int *pstate; }; + +# +# Return the PCI Routing Identifier (RID) for the device. +# +METHOD uint16_t get_rid { + device_t pcib; + device_t dev; +}; + Modified: head/sys/dev/pci/pcib_private.h ============================================================================== --- head/sys/dev/pci/pcib_private.h Tue Apr 1 15:06:03 2014 (r264006) +++ head/sys/dev/pci/pcib_private.h Tue Apr 1 15:47:24 2014 (r264007) @@ -167,5 +167,7 @@ int pcib_release_msi(device_t pcib, dev int pcib_alloc_msix(device_t pcib, device_t dev, int *irq); int pcib_release_msix(device_t pcib, device_t dev, int irq); int pcib_map_msi(device_t pcib, device_t dev, int irq, uint64_t *addr, uint32_t *data); +uint16_t pcib_get_rid(device_t pcib, device_t dev); + #endif Added: head/sys/dev/pci/pcib_support.c ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/dev/pci/pcib_support.c Tue Apr 1 15:47:24 2014 (r264007) @@ -0,0 +1,62 @@ +/* + * Copyright (c) Sandvine Inc. All rights reserved. + * 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +/* + * Support functions for the PCI:PCI bridge driver. This has to be in a + * separate file because kernel configurations end up referencing the functions + * here even when pci support is compiled out of the kernel. + */ + +#include <sys/param.h> +#include <sys/bus.h> +#include <sys/kernel.h> +#include <sys/malloc.h> +#include <sys/module.h> +#include <sys/rman.h> +#include <sys/sysctl.h> +#include <sys/systm.h> + +#include <dev/pci/pcivar.h> +#include <dev/pci/pcireg.h> +#include <dev/pci/pcib_private.h> + +#include "pcib_if.h" + +uint16_t +pcib_get_rid(device_t pcib, device_t dev) +{ + uint8_t bus, slot, func; + + bus = pci_get_bus(dev); + slot = pci_get_slot(dev); + func = pci_get_function(dev); + + return (PCI_RID(bus, slot, func)); +} + Modified: head/sys/dev/pci/pcireg.h ============================================================================== --- head/sys/dev/pci/pcireg.h Tue Apr 1 15:06:03 2014 (r264006) +++ head/sys/dev/pci/pcireg.h Tue Apr 1 15:47:24 2014 (r264007) @@ -48,6 +48,23 @@ #define PCIE_REGMAX 4095 /* highest supported config register addr. */ #define PCI_MAXHDRTYPE 2 +#define PCI_RID_BUS_SHIFT 8 +#define PCI_RID_SLOT_SHIFT 3 +#define PCI_RID_FUNC_SHIFT 0 + +#define PCI_RID(bus, slot, func) \ + ((((bus) & PCI_BUSMAX) << PCI_RID_BUS_SHIFT) | \ + (((slot) & PCI_SLOTMAX) << PCI_RID_SLOT_SHIFT) | \ + (((func) & PCI_FUNCMAX) << PCI_RID_FUNC_SHIFT)) + +#define PCI_ARI_RID(bus, func) \ + ((((bus) & PCI_BUSMAX) << PCI_RID_BUS_SHIFT) | \ + (((func) & PCIE_ARI_FUNCMAX) << PCI_RID_FUNC_SHIFT)) + +#define PCI_RID2BUS(rid) (((rid) >> PCI_RID_BUS_SHIFT) & PCI_BUSMAX) +#define PCI_RID2SLOT(rid) (((rid) >> PCI_RID_SLOT_SHIFT) & PCI_SLOTMAX) +#define PCI_RID2FUNC(rid) (((rid) >> PCI_RID_FUNC_SHIFT) & PCI_FUNCMAX) + /* PCI config header registers for all devices */ #define PCIR_DEVVENDOR 0x00 Modified: head/sys/dev/pci/pcivar.h ============================================================================== --- head/sys/dev/pci/pcivar.h Tue Apr 1 15:06:03 2014 (r264006) +++ head/sys/dev/pci/pcivar.h Tue Apr 1 15:47:24 2014 (r264007) @@ -482,6 +482,12 @@ pci_msix_count(device_t dev) return (PCI_MSIX_COUNT(device_get_parent(dev), dev)); } +static __inline uint16_t +pci_get_rid(device_t dev) +{ + return (PCI_GET_RID(device_get_parent(dev), dev)); +} + device_t pci_find_bsf(uint8_t, uint8_t, uint8_t); device_t pci_find_dbsf(uint32_t, uint8_t, uint8_t, uint8_t); device_t pci_find_device(uint16_t, uint16_t);
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