| Message ID | 1473839464-8670-6-git-send-email-caoj.fnst@cn.fujitsu.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Cao jin <caoj.fnst@cn.fujitsu.com> writes: > Resolve the TODO, msix=auto means msix on; if user specify msix=on, > then device creation fail on msix_init failure. > > CC: Gerd Hoffmann <kraxel@redhat.com> > CC: Michael S. Tsirkin <mst@redhat.com> > CC: Markus Armbruster <armbru@redhat.com> > CC: Marcel Apfelbaum <marcel@redhat.com> > Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com> > --- > hw/usb/hcd-xhci.c | 35 ++++++++++++++++++++++++----------- > 1 file changed, 24 insertions(+), 11 deletions(-) > > diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c > index 59f0239..4280c5d 100644 > --- a/hw/usb/hcd-xhci.c > +++ b/hw/usb/hcd-xhci.c > @@ -3603,12 +3603,14 @@ static void usb_xhci_realize(struct PCIDevice *dev, Error **errp) > if (xhci->numintrs < 1) { > xhci->numintrs = 1; > } > + > if (xhci->numslots > MAXSLOTS) { > xhci->numslots = MAXSLOTS; > } > if (xhci->numslots < 1) { > xhci->numslots = 1; > } > + > if (xhci_get_flag(xhci, XHCI_FLAG_ENABLE_STREAMS)) { > xhci->max_pstreams_mask = 7; /* == 256 primary streams */ > } else { > @@ -3633,6 +3635,28 @@ static void usb_xhci_realize(struct PCIDevice *dev, Error **errp) > } > > memory_region_init(&xhci->mem, OBJECT(xhci), "xhci", LEN_REGS); > + if (xhci->msix != ON_OFF_AUTO_OFF) { > + ret = msix_init(dev, xhci->numintrs, > + &xhci->mem, 0, OFF_MSIX_TABLE, > + &xhci->mem, 0, OFF_MSIX_PBA, > + 0x90, &err); > + /* Any error other than -ENOTSUP(board's MSI support is broken) > + * is a programming error */ > + assert(!ret || ret == -ENOTSUP); > + if (ret && xhci->msix == ON_OFF_AUTO_ON) { > + /* Can't satisfy user's explicit msix=on request, fail */ > + error_append_hint(&err, "You have to use msix=auto (default) or " > + "msic=off with this machine type.\n"); s/msic/msix/ Can hopefully be touched up on commit. > + /* No instance_finalize method, need to free the resource here */ > + object_unref(OBJECT(&xhci->mem)); > + error_propagate(errp, err); > + return; > + } > + assert(!err || xhci->msix == ON_OFF_AUTO_AUTO); > + /* With msix=auto, we fall back to MSI off silently */ > + error_free(err); > + } > + > memory_region_init_io(&xhci->mem_cap, OBJECT(xhci), &xhci_cap_ops, xhci, > "capabilities", LEN_CAP); > memory_region_init_io(&xhci->mem_oper, OBJECT(xhci), &xhci_oper_ops, xhci, > @@ -3668,17 +3692,6 @@ static void usb_xhci_realize(struct PCIDevice *dev, Error **errp) > ret = pcie_endpoint_cap_init(dev, 0xa0); > assert(ret >= 0); > } > - > - if (xhci->msix != ON_OFF_AUTO_OFF) { > - /* TODO check for errors, and should fail when msix=on */ > - ret = msix_init(dev, xhci->numintrs, > - &xhci->mem, 0, OFF_MSIX_TABLE, > - &xhci->mem, 0, OFF_MSIX_PBA, > - 0x90, &err); > - if (ret) { > - error_report_err(err); > - } > - } > } > > static void usb_xhci_exit(PCIDevice *dev)
On Do, 2016-09-29 at 16:32 +0200, Markus Armbruster wrote: > > Resolve the TODO, msix=auto means msix on; if user specify msix=on, > > then device creation fail on msix_init failure. Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c index 59f0239..4280c5d 100644 --- a/hw/usb/hcd-xhci.c +++ b/hw/usb/hcd-xhci.c @@ -3603,12 +3603,14 @@ static void usb_xhci_realize(struct PCIDevice *dev, Error **errp) if (xhci->numintrs < 1) { xhci->numintrs = 1; } + if (xhci->numslots > MAXSLOTS) { xhci->numslots = MAXSLOTS; } if (xhci->numslots < 1) { xhci->numslots = 1; } + if (xhci_get_flag(xhci, XHCI_FLAG_ENABLE_STREAMS)) { xhci->max_pstreams_mask = 7; /* == 256 primary streams */ } else { @@ -3633,6 +3635,28 @@ static void usb_xhci_realize(struct PCIDevice *dev, Error **errp) } memory_region_init(&xhci->mem, OBJECT(xhci), "xhci", LEN_REGS); + if (xhci->msix != ON_OFF_AUTO_OFF) { + ret = msix_init(dev, xhci->numintrs, + &xhci->mem, 0, OFF_MSIX_TABLE, + &xhci->mem, 0, OFF_MSIX_PBA, + 0x90, &err); + /* Any error other than -ENOTSUP(board's MSI support is broken) + * is a programming error */ + assert(!ret || ret == -ENOTSUP); + if (ret && xhci->msix == ON_OFF_AUTO_ON) { + /* Can't satisfy user's explicit msix=on request, fail */ + error_append_hint(&err, "You have to use msix=auto (default) or " + "msic=off with this machine type.\n"); + /* No instance_finalize method, need to free the resource here */ + object_unref(OBJECT(&xhci->mem)); + error_propagate(errp, err); + return; + } + assert(!err || xhci->msix == ON_OFF_AUTO_AUTO); + /* With msix=auto, we fall back to MSI off silently */ + error_free(err); + } + memory_region_init_io(&xhci->mem_cap, OBJECT(xhci), &xhci_cap_ops, xhci, "capabilities", LEN_CAP); memory_region_init_io(&xhci->mem_oper, OBJECT(xhci), &xhci_oper_ops, xhci, @@ -3668,17 +3692,6 @@ static void usb_xhci_realize(struct PCIDevice *dev, Error **errp) ret = pcie_endpoint_cap_init(dev, 0xa0); assert(ret >= 0); } - - if (xhci->msix != ON_OFF_AUTO_OFF) { - /* TODO check for errors, and should fail when msix=on */ - ret = msix_init(dev, xhci->numintrs, - &xhci->mem, 0, OFF_MSIX_TABLE, - &xhci->mem, 0, OFF_MSIX_PBA, - 0x90, &err); - if (ret) { - error_report_err(err); - } - } } static void usb_xhci_exit(PCIDevice *dev)
Resolve the TODO, msix=auto means msix on; if user specify msix=on, then device creation fail on msix_init failure. CC: Gerd Hoffmann <kraxel@redhat.com> CC: Michael S. Tsirkin <mst@redhat.com> CC: Markus Armbruster <armbru@redhat.com> CC: Marcel Apfelbaum <marcel@redhat.com> Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com> --- hw/usb/hcd-xhci.c | 35 ++++++++++++++++++++++++----------- 1 file changed, 24 insertions(+), 11 deletions(-)