From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Michael S. Tsirkin" Subject: Re: [PATCHv3 08/14] Add get_fw_dev_path callback for pci bus. Date: Wed, 10 Nov 2010 19:34:12 +0200 Message-ID: <20101110173412.GE3891@redhat.com> References: <1289409261-5418-1-git-send-email-gleb@redhat.com> <1289409261-5418-9-git-send-email-gleb@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org, blauwirbel@gmail.com, armbru@redhat.com, alex.williamson@redhat.com To: Gleb Natapov Return-path: Received: from mx1.redhat.com ([209.132.183.28]:48586 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751215Ab0KJReZ (ORCPT ); Wed, 10 Nov 2010 12:34:25 -0500 Content-Disposition: inline In-Reply-To: <1289409261-5418-9-git-send-email-gleb@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: On Wed, Nov 10, 2010 at 07:14:15PM +0200, Gleb Natapov wrote: > > Signed-off-by: Gleb Natapov Good stuff. We should also consider using this for CLI and monitor. Some comments below. > --- > hw/pci.c | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ > 1 files changed, 54 insertions(+), 0 deletions(-) > > diff --git a/hw/pci.c b/hw/pci.c > index 92aaa85..ab0399c 100644 > --- a/hw/pci.c > +++ b/hw/pci.c > @@ -63,12 +63,14 @@ struct PCIBus { > > static void pcibus_dev_print(Monitor *mon, DeviceState *dev, int indent); > static char *pcibus_get_dev_path(DeviceState *dev); > +static char *pcibus_get_fw_dev_path(DeviceState *dev); > > static struct BusInfo pci_bus_info = { > .name = "PCI", > .size = sizeof(PCIBus), > .print_dev = pcibus_dev_print, > .get_dev_path = pcibus_get_dev_path, > + .get_fw_dev_path = pcibus_get_fw_dev_path, > .props = (Property[]) { > DEFINE_PROP_PCI_DEVFN("addr", PCIDevice, devfn, -1), > DEFINE_PROP_STRING("romfile", PCIDevice, romfile), > @@ -2135,6 +2137,58 @@ static void pcibus_dev_print(Monitor *mon, DeviceState *dev, int indent) > } > } > > +static char *pci_dev_fw_name(DeviceState *dev, char *buf, int len) > +{ > + PCIDevice *d = (PCIDevice *)dev; > + const char *name = NULL; > + > +#define E(R, N) case R: name = N; break; Straight from underhanded C contest :). Does this macro really buy us all that much? Split this switch to an inline function, we'll get case 0x0600: return "host"; and then we won't need the macro. > + > + /* names taken from pci binding for open firmware */ > + switch (pci_get_word(d->config + PCI_CLASS_DEVICE)) { > + E(0x0001, "display"); E(0x0100, "scsi"); E(0x0101, "ide"); > + E(0x0102, "fdc"); E(0x0103, "ipi"); E(0x0104, "raid"); > + E(0x0200, "ethernet"); E(0x0201, "token-ring"); E(0x0202, "fddi"); > + E(0x0203, "atm"); E(0x0300 ... 0x03ff, "display"); E(0x0400, "video"); > + E(0x0401, "sound"); E(0x0500, "memory"); E(0x0501, "flash"); > + E(0x0600, "host"); E(0x0601, "isa"); E(0x0602, "eisa"); > + E(0x0603, "mca"); E(0x0604, "pci"); E(0x0605, "pcmcia"); > + E(0x0606, "nubus"); E(0x0607, "cardbus"); E(0x0700, "serial"); > + E(0x0701, "parallel"); E(0x0800, "interrupt-controller"); > + E(0x0801, "dma-controller"); E(0x0802, "timer"); > + E(0x0803, "rtc"); E(0x0900, "keyboard"); E(0x0901, "pen"); > + E(0x0902, "mouse"); E(0x0a00 ... 0x0aff, "dock"); > + E(0x0b00 ... 0x0bff, "cpu"); E(0x0c00, "fireware"); > + E(0x0c01, "access-bus"); E(0x0c02, "ssa"); E(0x0c03, "usb"); > + E(0x0c04, "fibre-channel"); Please use constants from hw/pci_ids.h > + } > +#undef E > + > + if (name) { > + pstrcpy(buf, len, name); > + } else { > + snprintf(buf, len, "pci%04x,%04x", > + pci_get_word(d->config + PCI_VENDOR_ID), > + pci_get_word(d->config + PCI_DEVICE_ID)); > + } > + > + return buf; > +} > + > +static char *pcibus_get_fw_dev_path(DeviceState *dev) > +{ > + PCIDevice *d = (PCIDevice *)dev; > + char path[50], name[33]; > + int off; > + > + off = snprintf(path, sizeof(path), "%s@%x", > + pci_dev_fw_name(dev, name, sizeof name), > + PCI_SLOT(d->devfn)); > + if (PCI_FUNC(d->devfn)) > + snprintf(path + off, sizeof(path) + off, ",%x", PCI_FUNC(d->devfn)); > + return strdup(path); > +} > + > static char *pcibus_get_dev_path(DeviceState *dev) > { > PCIDevice *d = (PCIDevice *)dev; > -- > 1.7.1