From 4f1c942b7fb29864ad86cb3af9076da38f38f74e Mon Sep 17 00:00:00 2001 From: Mark McLoughlin Date: Mon, 18 May 2009 13:40:55 +0100 Subject: net: add return value to packet receive handler This allows us to handle queue full conditions rather than dropping the packet on the floor. Signed-off-by: Mark McLoughlin --- hw/pcnet.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'hw/pcnet.c') diff --git a/hw/pcnet.c b/hw/pcnet.c index a8297df2af..b5793ff246 100644 --- a/hw/pcnet.c +++ b/hw/pcnet.c @@ -1076,16 +1076,17 @@ static int pcnet_can_receive(VLANClientState *vc) #define MIN_BUF_SIZE 60 -static void pcnet_receive(VLANClientState *vc, const uint8_t *buf, size_t size) +static ssize_t pcnet_receive(VLANClientState *vc, const uint8_t *buf, size_t size_) { PCNetState *s = vc->opaque; int is_padr = 0, is_bcast = 0, is_ladr = 0; uint8_t buf1[60]; int remaining; int crc_err = 0; + int size = size_; if (CSR_DRX(s) || CSR_STOP(s) || CSR_SPND(s) || !size) - return; + return -1; #ifdef PCNET_DEBUG printf("pcnet_receive size=%d\n", size); @@ -1252,6 +1253,8 @@ static void pcnet_receive(VLANClientState *vc, const uint8_t *buf, size_t size) pcnet_poll(s); pcnet_update_irq(s); + + return size_; } static void pcnet_transmit(PCNetState *s) -- cgit v1.2.1