diff options
| author | Michael Meskes <meskes@debian.org> | 2010-06-04 09:49:50 +0200 |
|---|---|---|
| committer | Michael Meskes <meskes@debian.org> | 2010-06-04 09:49:50 +0200 |
| commit | e13debb062071c46f2707d0d0e59c57675b49360 (patch) | |
| tree | 922f54068563b5cf3274bae8ba8122ce4b4ede1d /src/VBox/Devices/Network/DevE1000.cpp | |
| parent | abd0051802e55207e88435a185ff8d6e6b8d17d5 (diff) | |
| download | virtualbox-upstream/3.2.2-dfsg.tar.gz | |
Imported Upstream version 3.2.2-dfsgupstream/3.2.2-dfsg
Diffstat (limited to 'src/VBox/Devices/Network/DevE1000.cpp')
| -rw-r--r-- | src/VBox/Devices/Network/DevE1000.cpp | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/VBox/Devices/Network/DevE1000.cpp b/src/VBox/Devices/Network/DevE1000.cpp index b71bc605a..2f3b9f679 100644 --- a/src/VBox/Devices/Network/DevE1000.cpp +++ b/src/VBox/Devices/Network/DevE1000.cpp @@ -1,4 +1,4 @@ -/* $Id: DevE1000.cpp 29439 2010-05-13 00:32:18Z vboxsync $ */ +/* $Id: DevE1000.cpp 29685 2010-05-20 11:36:28Z vboxsync $ */ /** @file * DevE1000 - Intel 82540EM Ethernet Controller Emulation. * @@ -2643,7 +2643,12 @@ static int e1kRegWriteRDT(E1KSTATE* pState, uint32_t offset, uint32_t index, uin e1kCsRxLeave(pState); if (RT_SUCCESS(rc)) { -#ifdef IN_RING3 /** @todo bird: Use SUPSem* for this so we can signal it in ring-0 as well. (reduces latency) */ +/** @todo bird: Use SUPSem* for this so we can signal it in ring-0 as well + * without requiring any context switches. We should also check the + * wait condition before bothering to queue the item as we're currently + * queuing thousands of items per second here in a normal transmit + * scenario. Expect performance changes when fixing this! */ +#ifdef IN_RING3 /* Signal that we have more receive descriptors avalable. */ e1kWakeupReceive(pState->CTX_SUFF(pDevIns)); #else |