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[Qemu-devel] [PATCH v1 2/3] xilinx_ethlite: Flush queued packets on SW s


From: Peter Crosthwaite
Subject: [Qemu-devel] [PATCH v1 2/3] xilinx_ethlite: Flush queued packets on SW service
Date: Sat, 26 Jan 2013 12:36:23 -0800

Software services a received packet by clearing the CTRL_S bit in the RX_CTRLn
register. If this bit is cleared, flush any packets queued for the device.

Reported-by: John Williams <address@hidden>
Signed-off-by: Peter Crosthwaite <address@hidden>
---
 hw/xilinx_ethlite.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/hw/xilinx_ethlite.c b/hw/xilinx_ethlite.c
index 972b85e..9463e92 100644
--- a/hw/xilinx_ethlite.c
+++ b/hw/xilinx_ethlite.c
@@ -135,11 +135,14 @@ eth_write(void *opaque, hwaddr addr,
             break;
 
         /* Keep these native.  */
+        case R_RX_CTRL0:
+        case R_RX_CTRL1:
+            if (!(value & CTRL_S)) {
+                qemu_flush_queued_packets(&s->nic->nc);
+            }
         case R_TX_LEN0:
         case R_TX_LEN1:
         case R_TX_GIE0:
-        case R_RX_CTRL0:
-        case R_RX_CTRL1:
             D(qemu_log("%s addr=%x val=%x\n", __func__, addr * 4, value));
             s->regs[addr] = value;
             break;
-- 
1.7.12.1.396.g16eed7c





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