On Sun, Mar 30, 2008 at 10:56:18PM +0400, wrote:
> I have got system with rl and re cards. This system functiones as gateway,
> rl - internet re -
> intranet. Periodically I have
> ping: sendto: No buffer space available
> on rl card!
> on logs I have
> Mar 30 22:23:02 xxxxxxx kernel: rl0: watchdog timeout
> Mar 30 22:23:32 xxxxxxx last message repeated 6 times
> This could be improved by reboting the system, that very bad, as it network
> gateway!
> Some ideas?
>
> System FreeBSD 7.0 , compiled from RELENG_7_0_0
Please try attached patch and let me know how it goes.
--
Regards,
Pyun YongHyeon
--- sys/pci/if_rl.c.orig 2008-03-03 13:15:08.000000000 +0900
+++ sys/pci/if_rl.c 2008-03-31 14:16:02.000000000 +0900
@@ -1117,17 +1117,19 @@
* datasheet makes absolutely no mention of this and
* RealTek should be shot for this.
*/
- if ((uint16_t)(rxstat >> 16) == RL_RXSTAT_UNFINISHED)
+ total_len = rxstat >> 16;
+ if (total_len == RL_RXSTAT_UNFINISHED)
break;
- if (!(rxstat & RL_RXSTAT_RXOK)) {
+ if (!(rxstat & RL_RXSTAT_RXOK) ||
+ total_len < ETHER_MIN_LEN ||
+ total_len > ETHER_MAX_LEN + ETHER_VLAN_ENCAP_LEN) {
ifp->if_ierrors++;
rl_init_locked(sc);
return;
}
/* No errors; receive the packet. */
- total_len = rxstat >> 16;
rx_bytes += total_len + 4;
/*
@@ -1244,8 +1246,6 @@
if (RL_LAST_TXMBUF(sc) == NULL)
sc->rl_watchdog_timer = 0;
- else if (sc->rl_watchdog_timer == 0)
- sc->rl_watchdog_timer = 5;
}
static void
@@ -1326,27 +1326,32 @@
goto done_locked;
#endif
- for (;;) {
- status = CSR_READ_2(sc, RL_ISR);
+ status = CSR_READ_2(sc, RL_ISR);
+ if (status == 0 || status == 0xffff || (status & RL_INTRS) == 0)
+ goto done_locked;
+
+ /* Disable interrupts. */
+ CSR_WRITE_2(sc, RL_IMR, 0);
+
+ for (; (status & RL_INTRS) != 0;) {
/* If the card has gone away, the read returns 0xffff. */
if (status == 0xffff)
break;
- if (status != 0)
- CSR_WRITE_2(sc, RL_ISR, status);
- if ((status & RL_INTRS) == 0)
- break;
- if (status & RL_ISR_RX_OK)
+ CSR_WRITE_2(sc, RL_ISR, status);
+ if ((status & (RL_ISR_RX_OK | RL_ISR_RX_ERR)) != 0)
rl_rxeof(sc);
- if (status & RL_ISR_RX_ERR)
- rl_rxeof(sc);
- if ((status & RL_ISR_TX_OK) || (status & RL_ISR_TX_ERR))
+ if ((status & (RL_ISR_TX_OK | RL_ISR_TX_ERR)) != 0)
rl_txeof(sc);
if (status & RL_ISR_SYSTEM_ERR) {
rl_reset(sc);
rl_init_locked(sc);
}
+ status = CSR_READ_2(sc, RL_ISR);
}
+ /* Enable interrupts. */
+ CSR_WRITE_2(sc, RL_IMR, RL_INTRS);
+
if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd))
rl_start_locked(ifp);
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