[PATCH] leon, greth: 10/100 MAC enable TX BD interrupt
Daniel Hellstrom
daniel at gaisler.com
Fri Aug 24 13:32:41 UTC 2018
Missed to enable interrupt per TX descriptor. Could lead to TX buffer
starvation.
Does not affect the GBit code.
---
bsps/sparc/shared/net/greth.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/bsps/sparc/shared/net/greth.c b/bsps/sparc/shared/net/greth.c
index eafcb99..b2d2569 100644
--- a/bsps/sparc/shared/net/greth.c
+++ b/bsps/sparc/shared/net/greth.c
@@ -868,23 +868,23 @@ sendpacket (struct ifnet *ifp, struct mbuf *m)
if ((m = m->m_next) == NULL)
break;
}
-
+
m_freem (n);
-
+
/* don't send long packets */
if (len <= GRETH_MAXBUF_LEN) {
if (dp->tx_ptr < dp->txbufs-1) {
- dp->txdesc[dp->tx_ptr].ctrl = GRETH_TXD_ENABLE | len;
+ dp->txdesc[dp->tx_ptr].ctrl = GRETH_TXD_IRQ |
+ GRETH_TXD_ENABLE | len;
} else {
- dp->txdesc[dp->tx_ptr].ctrl =
+ dp->txdesc[dp->tx_ptr].ctrl = GRETH_TXD_IRQ |
GRETH_TXD_WRAP | GRETH_TXD_ENABLE | len;
}
dp->tx_ptr = (dp->tx_ptr + 1) % dp->txbufs;
SPIN_LOCK_IRQ(&dp->devlock, flags);
dp->regs->ctrl = dp->regs->ctrl | GRETH_CTRL_TXEN;
SPIN_UNLOCK_IRQ(&dp->devlock, flags);
-
}
return 0;
--
2.7.4
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