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It's normal to see Rx FIFO overruns under high network load and

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showing the message creates other side-effects. Remove the Rx
FIFO overrun message in interrupt handler. msk(4) should recover
from the FIFO overruns without any user intervention. Users can
still check the Rx FIFO overrun counter from MAC MIB statistics
maintained in driver(dev.msk.0.stats.rx.overflows).
This commit is contained in:
Pyun YongHyeon 2009-11-06 18:51:05 +00:00
parent 56964c4c9f
commit ff08021657
1 changed files with 1 additions and 3 deletions
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4
sys/dev/msk/if_msk.c
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@ -3217,11 +3217,9 @@ msk_intr_gmac(struct msk_if_softc *sc_if)
status = CSR_READ_1(sc, MR_ADDR(sc_if->msk_port, GMAC_IRQ_SRC));
/* GMAC Rx FIFO overrun. */
if ((status & GM_IS_RX_FF_OR) != 0) {
if ((status & GM_IS_RX_FF_OR) != 0)
CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, RX_GMF_CTRL_T),
GMF_CLI_RX_FO);
device_printf(sc_if->msk_if_dev, "Rx FIFO overrun!\n");
}
/* GMAC Tx FIFO underrun. */
if ((status & GM_IS_TX_FF_UR) != 0) {
CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, TX_GMF_CTRL_T),