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usb-redir: Add support for input pipelining 

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
master
Hans de Goede 2012-10-31 13:47:12 +01:00 committed by Gerd Hoffmann
parent c19a798133
commit 1b36c4d826
1 changed files with 53 additions and 10 deletions
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63
hw/usb/redirect.c
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@ -29,6 +29,7 @@
#include "qemu-timer.h"
#include "monitor.h"
#include "sysemu.h"
#include "iov.h"
#include <dirent.h>
#include <sys/ioctl.h>
@ -312,6 +313,11 @@ static void usbredir_cancel_packet(USBDevice *udev, USBPacket *p)
{
USBRedirDevice *dev = DO_UPCAST(USBRedirDevice, dev, udev);
if (p->combined) {
usb_combined_packet_cancel(udev, p);
return;
}
packet_id_queue_add(&dev->cancelled, p->id);
usbredirparser_send_cancel_data_packet(dev->parser, p->id);
usbredirparser_do_write(dev->parser);
@ -331,6 +337,10 @@ static void usbredir_fill_already_in_flight_from_ep(USBRedirDevice *dev,
static USBPacket *p;
QTAILQ_FOREACH(p, &ep->queue, queue) {
/* Skip combined packets, except for the first */
if (p->combined && p != p->combined->first) {
continue;
}
packet_id_queue_add(&dev->already_in_flight, p->id);
}
}
@ -565,17 +575,18 @@ static int usbredir_handle_bulk_data(USBRedirDevice *dev, USBPacket *p,
uint8_t ep)
{
struct usb_redir_bulk_packet_header bulk_packet;
size_t size = (p->combined) ? p->combined->iov.size : p->iov.size;
DPRINTF("bulk-out ep %02X len %zd id %"PRIu64"\n", ep, p->iov.size, p->id);
DPRINTF("bulk-out ep %02X len %zd id %"PRIu64"\n", ep, size, p->id);
if (usbredir_already_in_flight(dev, p->id)) {
return USB_RET_ASYNC;
}
bulk_packet.endpoint = ep;
bulk_packet.length = p->iov.size;
bulk_packet.length = size;
bulk_packet.stream_id = 0;
bulk_packet.length_high = p->iov.size >> 16;
bulk_packet.length_high = size >> 16;
assert(bulk_packet.length_high == 0 ||
usbredirparser_peer_has_cap(dev->parser,
usb_redir_cap_32bits_bulk_length));
@ -584,11 +595,16 @@ static int usbredir_handle_bulk_data(USBRedirDevice *dev, USBPacket *p,
usbredirparser_send_bulk_packet(dev->parser, p->id,
&bulk_packet, NULL, 0);
} else {
uint8_t buf[p->iov.size];
usb_packet_copy(p, buf, p->iov.size);
usbredir_log_data(dev, "bulk data out:", buf, p->iov.size);
uint8_t buf[size];
if (p->combined) {
iov_to_buf(p->combined->iov.iov, p->combined->iov.niov,
0, buf, size);
} else {
usb_packet_copy(p, buf, size);
}
usbredir_log_data(dev, "bulk data out:", buf, size);
usbredirparser_send_bulk_packet(dev->parser, p->id,
&bulk_packet, buf, p->iov.size);
&bulk_packet, buf, size);
}
usbredirparser_do_write(dev->parser);
return USB_RET_ASYNC;
@ -705,6 +721,10 @@ static int usbredir_handle_data(USBDevice *udev, USBPacket *p)
case USB_ENDPOINT_XFER_ISOC:
return usbredir_handle_iso_data(dev, p, ep);
case USB_ENDPOINT_XFER_BULK:
if (p->state == USB_PACKET_SETUP && p->pid == USB_TOKEN_IN &&
p->ep->pipeline) {
return USB_RET_ADD_TO_QUEUE;
}
return usbredir_handle_bulk_data(dev, p, ep);
case USB_ENDPOINT_XFER_INT:
return usbredir_handle_interrupt_data(dev, p, ep);
@ -715,6 +735,13 @@ static int usbredir_handle_data(USBDevice *udev, USBPacket *p)
}
}
static void usbredir_flush_ep_queue(USBDevice *dev, USBEndpoint *ep)
{
if (ep->pid == USB_TOKEN_IN && ep->pipeline) {
usb_ep_combine_input_packets(ep);
}
}
static int usbredir_set_config(USBRedirDevice *dev, USBPacket *p,
int config)
{
@ -1283,6 +1310,11 @@ static void usbredir_set_pipeline(USBRedirDevice *dev, struct USBEndpoint *uep)
if (uep->pid == USB_TOKEN_OUT) {
uep->pipeline = true;
}
if (uep->pid == USB_TOKEN_IN && uep->max_packet_size != 0 &&
usbredirparser_peer_has_cap(dev->parser,
usb_redir_cap_32bits_bulk_length)) {
uep->pipeline = true;
}
}
static void usbredir_ep_info(void *priv,
@ -1465,11 +1497,17 @@ static void usbredir_bulk_packet(void *priv, uint64_t id,
p = usbredir_find_packet_by_id(dev, ep, id);
if (p) {
size_t size = (p->combined) ? p->combined->iov.size : p->iov.size;
len = usbredir_handle_status(dev, bulk_packet->status, len);
if (len > 0) {
usbredir_log_data(dev, "bulk data in:", data, data_len);
if (data_len <= p->iov.size) {
usb_packet_copy(p, data, data_len);
if (data_len <= size) {
if (p->combined) {
iov_from_buf(p->combined->iov.iov, p->combined->iov.niov,
0, data, data_len);
} else {
usb_packet_copy(p, data, data_len);
}
} else {
ERROR("bulk got more data then requested (%d > %zd)\n",
data_len, p->iov.size);
@ -1477,7 +1515,11 @@ static void usbredir_bulk_packet(void *priv, uint64_t id,
}
}
p->result = len;
usb_packet_complete(&dev->dev, p);
if (p->pid == USB_TOKEN_IN && p->ep->pipeline) {
usb_combined_input_packet_complete(&dev->dev, p);
} else {
usb_packet_complete(&dev->dev, p);
}
}
free(data);
}
@ -1884,6 +1926,7 @@ static void usbredir_class_initfn(ObjectClass *klass, void *data)
uc->handle_reset = usbredir_handle_reset;
uc->handle_data = usbredir_handle_data;
uc->handle_control = usbredir_handle_control;
uc->flush_ep_queue = usbredir_flush_ep_queue;
dc->vmsd = &usbredir_vmstate;
dc->props = usbredir_properties;
}