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Make sure to clear PMDR register by writing back power management

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events. Just reading PMDR register was not enough to have fxp(4)
immuninize against received magic packets during system boot.

Tested by:	Alexey Shuvaev < shuvaev <> physik DOT uni-wuerzburg DOT de >
This commit is contained in:
Pyun YongHyeon 2008-12-02 02:12:34 +00:00
parent e44730ed21
commit af75b654d2
1 changed files with 4 additions and 5 deletions
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9
sys/dev/fxp/if_fxp.c
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@ -857,7 +857,7 @@ fxp_attach(device_t dev)
if ((sc->flags & FXP_FLAG_WOLCAP) != 0) {
FXP_LOCK(sc);
/* Clear wakeup events. */
CSR_READ_1(sc, FXP_CSR_PMDR);
CSR_WRITE_1(sc, FXP_CSR_PMDR, CSR_READ_1(sc, FXP_CSR_PMDR));
fxp_init_body(sc);
fxp_stop(sc);
FXP_UNLOCK(sc);
@ -1050,10 +1050,9 @@ fxp_resume(device_t dev)
/* Disable PME and clear PME status. */
pmstat &= ~PCIM_PSTAT_PMEENABLE;
pci_write_config(sc->dev, pmc + PCIR_POWER_STATUS, pmstat, 2);
if ((sc->flags & FXP_FLAG_WOLCAP) != 0) {
/* Clear wakeup events. */
CSR_READ_1(sc, FXP_CSR_PMDR);
}
if ((sc->flags & FXP_FLAG_WOLCAP) != 0)
CSR_WRITE_1(sc, FXP_CSR_PMDR,
CSR_READ_1(sc, FXP_CSR_PMDR));
}
CSR_WRITE_4(sc, FXP_CSR_PORT, FXP_PORT_SELECTIVE_RESET);