RTOS/rtems
1
0
Fork 0
forked from Imagelibrary/rtems
Code Pull Requests Activity

leon, greth: 10/100 MAC enable TX BD interrupt

Browse Source 
Missed to enable interrupt per TX descriptor. Could lead to TX buffer
starvation.

Does not affect the GBit code.
This commit is contained in:
Daniel Hellstrom
2018-02-13 07:47:14 +01:00
parent a87964d04f
commit 2fbe2ef3ea
1 changed files with 5 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
bsps/sparc/shared/net/greth.c
View File

@@ -875,16 +875,16 @@ sendpacket (struct ifnet *ifp, struct mbuf *m)
if (len <= GRETH_MAXBUF_LEN) { if (len <= GRETH_MAXBUF_LEN) {
if (dp->tx_ptr < dp->txbufs-1) { 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 { } else {
dp->txdesc[dp->tx_ptr].ctrl = dp->txdesc[dp->tx_ptr].ctrl = GRETH_TXD_IRQ |
GRETH_TXD_WRAP | GRETH_TXD_ENABLE | len; GRETH_TXD_WRAP | GRETH_TXD_ENABLE | len;
} }
dp->tx_ptr = (dp->tx_ptr + 1) % dp->txbufs; dp->tx_ptr = (dp->tx_ptr + 1) % dp->txbufs;
SPIN_LOCK_IRQ(&dp->devlock, flags); SPIN_LOCK_IRQ(&dp->devlock, flags);
dp->regs->ctrl = dp->regs->ctrl | GRETH_CTRL_TXEN; dp->regs->ctrl = dp->regs->ctrl | GRETH_CTRL_TXEN;
SPIN_UNLOCK_IRQ(&dp->devlock, flags); SPIN_UNLOCK_IRQ(&dp->devlock, flags);
} }
return 0; return 0;