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| author | Finn Thain <fthain@telegraphics.com.au> | 2020-01-29 20:27:49 +1100 |
|---|---|---|
| committer | Jason Wang <jasowang@redhat.com> | 2020-03-03 18:04:47 +0800 |
| commit | 350e7d9a77d3b9ac74d240e4b232db1ebe5c05bc (patch) | |
| tree | ce5513fd8a167f350f787279f52310ef9fe40d84 /qemu-io-cmds.c | |
| parent | ea2270279bc2e1635cb6e909e22e17e630198773 (diff) | |
| download | qemu-350e7d9a77d3b9ac74d240e4b232db1ebe5c05bc.zip qemu-350e7d9a77d3b9ac74d240e4b232db1ebe5c05bc.tar.gz qemu-350e7d9a77d3b9ac74d240e4b232db1ebe5c05bc.tar.bz2 | |
dp8393x: Pad frames to word or long word boundary
The existing code has a bug where the Remaining Buffer Word Count (RBWC)
is calculated with a truncating division, which gives the wrong result
for odd-sized packets.
Section 1.4.1 of the datasheet says,
Once the end of the packet has been reached, the serializer will
fill out the last word (16-bit mode) or long word (32-bit mode)
if the last byte did not end on a word or long word boundary
respectively. The fill byte will be 0FFh.
Implement buffer padding so that buffer limits are correctly enforced.
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'qemu-io-cmds.c')
0 files changed, 0 insertions, 0 deletions