diff options
| author | Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> | 2019-06-30 18:21:50 +0100 |
|---|---|---|
| committer | Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> | 2019-07-02 22:49:08 +0100 |
| commit | 09340f497e96a62d076b2f223e7b16a7358cfecb (patch) | |
| tree | d719603d5767d08482925e092698fb8bbdbe6617 /hw/net/trace-events | |
| parent | 29df47a5cc4133a31259c24ffdf26bf25080558a (diff) | |
sunhme: ensure that RX descriptor ring overflow is indicated to client driver
On very busy networks connected via a tap interface, it is possible to overflow
the RX descriptor ring in the time between the client driver enabling the RX
MAC and finishing writing the final configuration to the NIC registers.
Ensure that we detect this condition and update the status register accordingly
to indicate an overflow has occurred (and the incoming packet dropped) in order
to prevent the client driver becoming confused.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Diffstat (limited to 'hw/net/trace-events')
| -rw-r--r-- | hw/net/trace-events | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/hw/net/trace-events b/hw/net/trace-events index d16273c579..58665655cc 100644 --- a/hw/net/trace-events +++ b/hw/net/trace-events @@ -359,6 +359,7 @@ sunhme_rx_filter_reject(void) "rejecting incoming frame" sunhme_rx_filter_accept(void) "accepting incoming frame" sunhme_rx_desc(uint32_t addr, int offset, uint32_t status, int len, int cr, int nr) "addr 0x%"PRIx32"(+0x%x) status 0x%"PRIx32 " len %d (ring %d/%d)" sunhme_rx_xsum_calc(uint16_t xsum) "calculated incoming xsum as 0x%x" +sunhme_rx_norxd(void) "no free rx descriptors available" sunhme_update_irq(uint32_t mifmask, uint32_t mif, uint32_t sebmask, uint32_t seb, int level) "mifmask: 0x%x mif: 0x%x sebmask: 0x%x seb: 0x%x level: %d" # virtio-net.c |