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usb: drop usb_host_dev_is_scsi_storage hook

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Introduce an usb device flag instead, set it when usb-host looks at the
device descriptors anyway.  Also set it for emulated storage devices,
for consistency.  Add an inline helper function to check the flag.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-32-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Gerd Hoffmann 2021-06-24 12:38:33 +02:00 committed by Paolo Bonzini
parent f0e48cbd79
commit b7b2a60b01
7 changed files with 17 additions and 36 deletions
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2
hw/ppc/spapr.c
View file

@ -3106,7 +3106,7 @@ static char *spapr_get_fw_dev_path(FWPathProvider *p, BusState *bus,
*/
if (strcmp("usb-host", qdev_fw_name(dev)) == 0) {
USBDevice *usbdev = CAST(USBDevice, dev, TYPE_USB_DEVICE);
if (usb_host_dev_is_scsi_storage(usbdev)) {
if (usb_device_is_scsi_storage(usbdev)) {
return g_strdup_printf("storage@%s/disk", usbdev->port->path);
}
}

1
hw/usb/dev-storage-bot.c
View file

@ -32,6 +32,7 @@ static void usb_msd_bot_realize(USBDevice *dev, Error **errp)
usb_desc_create_serial(dev);
usb_desc_init(dev);
dev->flags |= (1 << USB_DEV_FLAG_IS_SCSI_STORAGE);
if (d->hotplugged) {
s->dev.auto_attach = 0;
}

1
hw/usb/dev-storage-classic.c
View file

@ -64,6 +64,7 @@ static void usb_msd_storage_realize(USBDevice *dev, Error **errp)
usb_desc_create_serial(dev);
usb_desc_init(dev);
dev->flags |= (1 << USB_DEV_FLAG_IS_SCSI_STORAGE);
scsi_bus_new(&s->bus, sizeof(s->bus), DEVICE(dev),
&usb_msd_scsi_info_storage, NULL);
scsi_dev = scsi_bus_legacy_add_drive(&s->bus, blk, 0, !!s->removable,

1
hw/usb/dev-uas.c
View file

@ -926,6 +926,7 @@ static void usb_uas_realize(USBDevice *dev, Error **errp)
QTAILQ_INIT(&uas->requests);
uas->status_bh = qemu_bh_new(usb_uas_send_status_bh, uas);
dev->flags |= (1 << USB_DEV_FLAG_IS_SCSI_STORAGE);
scsi_bus_new(&uas->bus, sizeof(uas->bus), DEVICE(dev),
&usb_uas_scsi_info, NULL);
}

36
hw/usb/host-libusb.c
View file

@ -770,6 +770,13 @@ static void usb_host_speed_compat(USBHostDevice *s)
for (i = 0; i < conf->bNumInterfaces; i++) {
for (a = 0; a < conf->interface[i].num_altsetting; a++) {
intf = &conf->interface[i].altsetting[a];
if (intf->bInterfaceClass == LIBUSB_CLASS_MASS_STORAGE &&
intf->bInterfaceSubClass == 6) { /* SCSI */
udev->flags |= (1 << USB_DEV_FLAG_IS_SCSI_STORAGE);
break;
}
for (e = 0; e < intf->bNumEndpoints; e++) {
endp = &intf->endpoint[e];
type = endp->bmAttributes & 0x3;
@ -1893,35 +1900,6 @@ static void usb_host_auto_check(void *unused)
timer_mod(usb_auto_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + 2000);
}
/**
* Check whether USB host device has a USB mass storage SCSI interface
*/
bool usb_host_dev_is_scsi_storage(USBDevice *ud)
{
USBHostDevice *uhd = USB_HOST_DEVICE(ud);
struct libusb_config_descriptor *conf;
const struct libusb_interface_descriptor *intf;
bool is_scsi_storage = false;
int i;
if (!uhd || libusb_get_active_config_descriptor(uhd->dev, &conf) != 0) {
return false;
}
for (i = 0; i < conf->bNumInterfaces; i++) {
intf = &conf->interface[i].altsetting[ud->altsetting[i]];
if (intf->bInterfaceClass == LIBUSB_CLASS_MASS_STORAGE &&
intf->bInterfaceSubClass == 6) { /* 6 means SCSI */
is_scsi_storage = true;
break;
}
}
libusb_free_config_descriptor(conf);
return is_scsi_storage;
}
void hmp_info_usbhost(Monitor *mon, const QDict *qdict)
{
libusb_device **devs = NULL;

5
hw/usb/host-stub.c
View file

@ -38,8 +38,3 @@ void hmp_info_usbhost(Monitor *mon, const QDict *qdict)
{
monitor_printf(mon, "USB host devices not supported\n");
}
bool usb_host_dev_is_scsi_storage(USBDevice *ud)
{
return false;
}

7
include/hw/usb.h
View file

@ -219,6 +219,7 @@ enum USBDeviceFlags {
USB_DEV_FLAG_IS_HOST,
USB_DEV_FLAG_MSOS_DESC_ENABLE,
USB_DEV_FLAG_MSOS_DESC_IN_USE,
USB_DEV_FLAG_IS_SCSI_STORAGE,
};
/* definition of a USB device */
@ -465,7 +466,6 @@ void usb_generic_async_ctrl_complete(USBDevice *s, USBPacket *p);
/* usb-linux.c */
void hmp_info_usbhost(Monitor *mon, const QDict *qdict);
bool usb_host_dev_is_scsi_storage(USBDevice *usbdev);
/* usb ports of the VM */
@ -561,6 +561,11 @@ const char *usb_device_get_product_desc(USBDevice *dev);
const USBDesc *usb_device_get_usb_desc(USBDevice *dev);
static inline bool usb_device_is_scsi_storage(USBDevice *dev)
{
return dev->flags & (1 << USB_DEV_FLAG_IS_SCSI_STORAGE);
}
/* quirks.c */
/* In bulk endpoints are streaming data sources (iow behave like isoc eps) */