Merge branch 'net-queue'

* net-queue: (28 commits)
  virtio-net: Increase filter and control limits
  virtio-net: Add new RX filter controls
  virtio-net: MAC filter optimization
  virtio-net: Fix MAC filter overflow handling
  virtio-net: reorganize receive_filter()
  virtio-net: Use a byte to store RX mode flags
  virtio-net: Add version_id 7 placeholder for vnet header support
  virtio-net: implement rx packet queueing
  net: make use of async packet sending API in tap client
  net: add qemu_send_packet_async()
  net: split out packet queueing and flushing into separate functions
  net: return status from qemu_deliver_packet()
  net: add return value to packet receive handler
  net: pass VLANClientState* as first arg to receive handlers
  net: re-name vc->fd_read() to vc->receive()
  net: add fd_readv() handler to qemu_new_vlan_client() args
  net: only read from tapfd when we can send
  net: vlan clients with no fd_can_read() can always receive
  net: move the tap buffer into TAPState
  net: factor tap_read_packet() out of tap_send()
  ...

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 21 insertions, 18 deletions

diff --git a/hw/rtl8139.c b/hw/rtl8139.c
index ea27dcf..de5a68f 100644
--- a/hw/rtl8139.c
+++ b/hw/rtl8139.c
@@ -790,9 +790,9 @@ static inline target_phys_addr_t rtl8139_addr64(uint32_t low, uint32_t high)
 #endif
 }
 
-static int rtl8139_can_receive(void *opaque)
+static int rtl8139_can_receive(VLANClientState *vc)
 {
-    RTL8139State *s = opaque;
+    RTL8139State *s = vc->opaque;
     int avail;
 
     /* Receive (drop) packets if card is disabled.  */
@@ -812,9 +812,10 @@ static int rtl8139_can_receive(void *opaque)
     }
 }
 
-static void rtl8139_do_receive(void *opaque, const uint8_t *buf, int size, int do_interrupt)
+static ssize_t rtl8139_do_receive(VLANClientState *vc, const uint8_t *buf, size_t size_, int do_interrupt)
 {
-    RTL8139State *s = opaque;
+    RTL8139State *s = vc->opaque;
+    int size = size_;
 
     uint32_t packet_header = 0;
 
@@ -828,7 +829,7 @@ static void rtl8139_do_receive(void *opaque, const uint8_t *buf, int size, int d
     if (!s->clock_enabled)
     {
         DEBUG_PRINT(("RTL8139: stopped ==========================\n"));
-        return;
+        return -1;
     }
 
     /* first check if receiver is enabled */
@@ -836,7 +837,7 @@ static void rtl8139_do_receive(void *opaque, const uint8_t *buf, int size, int d
     if (!rtl8139_receiver_enabled(s))
     {
         DEBUG_PRINT(("RTL8139: receiver disabled ================\n"));
-        return;
+        return -1;
     }
 
     /* XXX: check this */
@@ -854,7 +855,7 @@ static void rtl8139_do_receive(void *opaque, const uint8_t *buf, int size, int d
                 /* update tally counter */
                 ++s->tally_counters.RxERR;
 
-                return;
+                return size;
             }
 
             packet_header |= RxBroadcast;
@@ -873,7 +874,7 @@ static void rtl8139_do_receive(void *opaque, const uint8_t *buf, int size, int d
                 /* update tally counter */
                 ++s->tally_counters.RxERR;
 
-                return;
+                return size;
             }
 
             int mcast_idx = compute_mcast_idx(buf);
@@ -885,7 +886,7 @@ static void rtl8139_do_receive(void *opaque, const uint8_t *buf, int size, int d
                 /* update tally counter */
                 ++s->tally_counters.RxERR;
 
-                return;
+                return size;
             }
 
             packet_header |= RxMulticast;
@@ -909,7 +910,7 @@ static void rtl8139_do_receive(void *opaque, const uint8_t *buf, int size, int d
                 /* update tally counter */
                 ++s->tally_counters.RxERR;
 
-                return;
+                return size;
             }
 
             packet_header |= RxPhysical;
@@ -926,7 +927,7 @@ static void rtl8139_do_receive(void *opaque, const uint8_t *buf, int size, int d
             /* update tally counter */
             ++s->tally_counters.RxERR;
 
-            return;
+            return size;
         }
     }
 
@@ -993,7 +994,7 @@ static void rtl8139_do_receive(void *opaque, const uint8_t *buf, int size, int d
             ++s->tally_counters.MissPkt;
 
             rtl8139_update_irq(s);
-            return;
+            return size_;
         }
 
         uint32_t rx_space = rxdw0 & CP_RX_BUFFER_SIZE_MASK;
@@ -1013,7 +1014,7 @@ static void rtl8139_do_receive(void *opaque, const uint8_t *buf, int size, int d
             ++s->tally_counters.MissPkt;
 
             rtl8139_update_irq(s);
-            return;
+            return size_;
         }
 
         target_phys_addr_t rx_addr = rtl8139_addr64(rxbufLO, rxbufHI);
@@ -1118,7 +1119,7 @@ static void rtl8139_do_receive(void *opaque, const uint8_t *buf, int size, int d
             s->IntrStatus |= RxOverflow;
             ++s->RxMissed;
             rtl8139_update_irq(s);
-            return;
+            return size_;
         }
 
         packet_header |= RxStatusOK;
@@ -1156,11 +1157,13 @@ static void rtl8139_do_receive(void *opaque, const uint8_t *buf, int size, int d
     {
         rtl8139_update_irq(s);
     }
+
+    return size_;
 }
 
-static void rtl8139_receive(void *opaque, const uint8_t *buf, int size)
+static ssize_t rtl8139_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
 {
-    rtl8139_do_receive(opaque, buf, size, 1);
+    return rtl8139_do_receive(vc, buf, size, 1);
 }
 
 static void rtl8139_reset_rxring(RTL8139State *s, uint32_t bufferSize)
@@ -1758,7 +1761,7 @@ static void rtl8139_transfer_frame(RTL8139State *s, const uint8_t *buf, int size
     if (TxLoopBack == (s->TxConfig & TxLoopBack))
     {
         DEBUG_PRINT(("RTL8139: +++ transmit loopback mode\n"));
-        rtl8139_do_receive(s, buf, size, do_interrupt);
+        rtl8139_do_receive(s->vc, buf, size, do_interrupt);
     }
     else
     {
@@ -3479,7 +3482,7 @@ static void pci_rtl8139_init(PCIDevice *dev)
     qemu_register_reset(rtl8139_reset, 0, s);
     rtl8139_reset(s);
     s->vc = qdev_get_vlan_client(&dev->qdev,
-                                 rtl8139_receive, rtl8139_can_receive,
+                                 rtl8139_can_receive, rtl8139_receive, NULL,
                                  rtl8139_cleanup, s);
 
     qemu_format_nic_info_str(s->vc, s->macaddr);