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etsec: Move etsec_can_receive into etsec_receive

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When etsec_reset returns 0, peer would queue the packet as if
.can_receive returns false. Drop etsec_can_receive and let etsec_receive
carry the semantics.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
Message-id: 1436955553-22791-6-git-send-email-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Fam Zheng 2015-07-15 18:19:06 +08:00 • committed by Stefan Hajnoczi
parent 913440249e
commit b6cb6610c2
3 changed files with 10 additions and 17 deletions
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14
hw/net/fsl_etsec/rings.c
View file

@ -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)