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| author | Laszlo Ersek <lersek@redhat.com> | 2017-09-15 10:14:53 +0200 |
|---|---|---|
| committer | Laszlo Ersek <lersek@redhat.com> | 2017-09-22 15:01:29 +0200 |
| commit | 53b55831e01f2050dbd9fd110758b7e5d96d0ae4 (patch) | |
| tree | 913e0dcac5d838451ef00050dfbf04f145b4805e /OvmfPkg/VirtioNetDxe | |
| parent | f9c59fa44ae29924781e235b9709a8119f62f1c3 (diff) | |
| download | edk2-53b55831e01f2050dbd9fd110758b7e5d96d0ae4.tar.gz edk2-53b55831e01f2050dbd9fd110758b7e5d96d0ae4.tar.bz2 edk2-53b55831e01f2050dbd9fd110758b7e5d96d0ae4.zip | |
OvmfPkg/VirtioNetDxe: document Rx/Tx allocs and mappings on Init/Shutdown
Document the following actions on the
EfiSimpleNetworkStarted <-> EfiSimpleNetworkInitialized
state transitions:
* from commit 46b11f00ac70 ("OvmfPkg/VirtioNetDxe: alloc RxBuf using
AllocateSharedPages()", 2017-09-14):
VirtioNetInitRx ->
{ VirtIo->AllocateSharedPages, VirtioMapAllBytesInSharedBuffer }
VirtioNetShutdownRx ->
{ VirtIo->UnmapSharedBuffer, VirtIo->FreeSharedPages }
* from commit 891f016c1b99 ("OvmfPkg/VirtioNetDxe: dynamically alloc
transmit header", 2017-09-14):
VirtioNetInitTx ->
{ VirtIo->AllocateSharedPages, VirtioMapAllBytesInSharedBuffer }
VirtioNetShutdownTx ->
{ VirtIo->UnmapSharedBuffer, VirtIo->FreeSharedPages }
Cc: Brijesh Singh <brijesh.singh@amd.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Brijesh Singh <brijesh.singh@amd.com>
Diffstat (limited to 'OvmfPkg/VirtioNetDxe')
| -rw-r--r-- | OvmfPkg/VirtioNetDxe/TechNotes.txt | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/OvmfPkg/VirtioNetDxe/TechNotes.txt b/OvmfPkg/VirtioNetDxe/TechNotes.txt index 40a22f66dc..cd38750a4a 100644 --- a/OvmfPkg/VirtioNetDxe/TechNotes.txt +++ b/OvmfPkg/VirtioNetDxe/TechNotes.txt @@ -69,10 +69,14 @@ faithfully indented) that implement the transition. [SnpInitialize.c] | | [SnpShutdown.c]
VirtioNetInitialize | | VirtioNetShutdown
VirtioNetInitRing {Rx, Tx} | | VirtioNetShutdownRx [SnpSharedHelpers.c]
- VirtioRingInit | | VirtioNetShutdownTx [SnpSharedHelpers.c]
- VirtioRingMap | | VirtioNetUninitRing [SnpSharedHelpers.c]
- VirtioNetInitTx | | {Tx, Rx}
- VirtioNetInitRx | | VirtIo->UnmapSharedBuffer
+ VirtioRingInit | | VirtIo->UnmapSharedBuffer
+ VirtioRingMap | | VirtIo->FreeSharedPages
+ VirtioNetInitTx | | VirtioNetShutdownTx [SnpSharedHelpers.c]
+ VirtIo->AllocateShare... | | VirtIo->UnmapSharedBuffer
+ VirtioMapAllBytesInSh... | | VirtIo->FreeSharedPages
+ VirtioNetInitRx | | VirtioNetUninitRing [SnpSharedHelpers.c]
+ VirtIo->AllocateShare... | | {Tx, Rx}
+ VirtioMapAllBytesInSh... | | VirtIo->UnmapSharedBuffer
| | VirtioRingUninit
v |
+-----------------------------+
|