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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 | 80b60673ea598869050c66d95d8339480e4cefd0 (patch) | |
| tree | 84acbb1fd2995cb162b2a70ba6cda50cd99ea916 /hw/net | |
| parent | d9fae13196a31716f45dcddcdd958fbb8e59b35a (diff) | |
| download | qemu-80b60673ea598869050c66d95d8339480e4cefd0.zip qemu-80b60673ea598869050c66d95d8339480e4cefd0.tar.gz qemu-80b60673ea598869050c66d95d8339480e4cefd0.tar.bz2 | |
dp8393x: Always update RRA pointers and sequence numbers
These operations need to take place regardless of whether or not
rx descriptors have been used up (that is, EOL flag was observed).
The algorithm is now the same for a packet that was withheld as for
a packet that was not.
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'hw/net')
| -rw-r--r-- | hw/net/dp8393x.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/hw/net/dp8393x.c b/hw/net/dp8393x.c index 08194a4..cfbc2ee 100644 --- a/hw/net/dp8393x.c +++ b/hw/net/dp8393x.c @@ -901,12 +901,14 @@ static ssize_t dp8393x_receive(NetClientState *nc, const uint8_t * buf, /* Move to next descriptor */ s->regs[SONIC_CRDA] = s->regs[SONIC_LLFA]; s->regs[SONIC_ISR] |= SONIC_ISR_PKTRX; - s->regs[SONIC_RSC] = (s->regs[SONIC_RSC] & 0xff00) | (((s->regs[SONIC_RSC] & 0x00ff) + 1) & 0x00ff); + } - if (s->regs[SONIC_RCR] & SONIC_RCR_LPKT) { - /* Read next RRA */ - dp8393x_do_read_rra(s); - } + s->regs[SONIC_RSC] = (s->regs[SONIC_RSC] & 0xff00) | + ((s->regs[SONIC_RSC] + 1) & 0x00ff); + + if (s->regs[SONIC_RCR] & SONIC_RCR_LPKT) { + /* Read next RRA */ + dp8393x_do_read_rra(s); } /* Done */ |