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path: root/hw/net/fsl_etsec/rings.c
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Diffstat (limited to 'hw/net/fsl_etsec/rings.c')
-rw-r--r--hw/net/fsl_etsec/rings.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/hw/net/fsl_etsec/rings.c b/hw/net/fsl_etsec/rings.c
index d4a494f6a3..a11280b2b7 100644
--- a/hw/net/fsl_etsec/rings.c
+++ b/hw/net/fsl_etsec/rings.c
@@ -481,40 +481,42 @@ static void rx_init_frame(eTSEC *etsec, const uint8_t *buf, size_t size)
etsec->rx_buffer_len, etsec->rx_padding);
}
-void etsec_rx_ring_write(eTSEC *etsec, const uint8_t *buf, size_t size)
+ssize_t etsec_rx_ring_write(eTSEC *etsec, const uint8_t *buf, size_t size)
{
int ring_nbr = 0; /* Always use ring0 (no filer) */
if (etsec->rx_buffer_len != 0) {
RING_DEBUG("%s: We can't receive now,"
" a buffer is already in the pipe\n", __func__);
- return;
+ return 0;
}
if (etsec->regs[RSTAT].value & 1 << (23 - ring_nbr)) {
RING_DEBUG("%s: The ring is halted\n", __func__);
- return;
+ return -1;
}
if (etsec->regs[DMACTRL].value & DMACTRL_GRS) {
RING_DEBUG("%s: Graceful receive stop\n", __func__);
- return;
+ return -1;
}
if (!(etsec->regs[MACCFG1].value & MACCFG1_RX_EN)) {
RING_DEBUG("%s: MAC Receive not enabled\n", __func__);
- return;
+ return -1;
}
if ((etsec->regs[RCTRL].value & RCTRL_RSF) && (size < 60)) {
/* CRC is not in the packet yet, so short frame is below 60 bytes */
RING_DEBUG("%s: Drop short frame\n", __func__);
- return;
+ return -1;
}
rx_init_frame(etsec, buf, size);
etsec_walk_rx_ring(etsec, ring_nbr);
+
+ return size;
}
void etsec_walk_rx_ring(eTSEC *etsec, int ring_nbr)