diff options
| -rw-r--r-- | sys/dev/sf/if_sf.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sys/dev/sf/if_sf.c b/sys/dev/sf/if_sf.c index 251f310..6a8b49f 100644 --- a/sys/dev/sf/if_sf.c +++ b/sys/dev/sf/if_sf.c @@ -2329,6 +2329,9 @@ sf_stop(struct sf_softc *sc) /* Disable Tx/Rx egine. */ csr_write_4(sc, SF_GEN_ETH_CTL, 0); + /* Give hardware chance to drain active DMA cycles. */ + DELAY(1000); + csr_write_4(sc, SF_CQ_CONSIDX, 0); csr_write_4(sc, SF_CQ_PRODIDX, 0); csr_write_4(sc, SF_RXDQ_ADDR_Q1, 0); |
