diff options
| author | Damien Bergamini <damien@cvs.openbsd.org> | 2004-10-27 21:19:02 +0000 |
|---|---|---|
| committer | Damien Bergamini <damien@cvs.openbsd.org> | 2004-10-27 21:19:02 +0000 |
| commit | ee398faf027faa4650aef33c6f4c8e4efbd81391 (patch) | |
| tree | 3c8e3fd6054129ccb12d47c0c9247bf412fc23d5 | |
| parent | ff22d06b8cf8e4cc0ab88caaebe70f515c331770 (diff) | |
Configure the adapter properly to avoid Tx retries from interfering with
CPU C3 state (imported from iwi).
| -rw-r--r-- | sys/dev/pci/if_ipw.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/sys/dev/pci/if_ipw.c b/sys/dev/pci/if_ipw.c index 720007bf6fb..6f81084c5e7 100644 --- a/sys/dev/pci/if_ipw.c +++ b/sys/dev/pci/if_ipw.c @@ -1,4 +1,4 @@ -/* $Id: if_ipw.c,v 1.8 2004/10/27 21:17:18 damien Exp $ */ +/* $Id: if_ipw.c,v 1.9 2004/10/27 21:19:01 damien Exp $ */ /*- * Copyright (c) 2004 @@ -168,11 +168,15 @@ ipw_attach(struct device *parent, struct device *self, void *aux) bus_space_handle_t memh; bus_addr_t base; pci_intr_handle_t ih; - u_int32_t data; + pcireg_t data; int error, i; sc->sc_pct = pa->pa_pc; + data = pci_conf_read(sc->sc_pct, pa->pa_tag, 0x40); + data &= ~0x00ff0000; + pci_conf_write(sc->sc_pct, pa->pa_tag, 0x40, data); + /* enable bus-mastering */ data = pci_conf_read(sc->sc_pct, pa->pa_tag, PCI_COMMAND_STATUS_REG); data |= PCI_COMMAND_MASTER_ENABLE; |