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Add a comment about what may be happening when we get certain

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messages.  No change to actual code.
This commit is contained in:
Warner Losh 2009-06-01 16:22:01 +00:00
parent 33dd50646e
commit 1771d2075a
1 changed files with 17 additions and 0 deletions
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17
sys/dev/bwi/if_bwi.c
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@ -1628,6 +1628,23 @@ bwi_intr(void *xsc)
/* Disable all interrupts */
bwi_disable_intrs(sc, BWI_ALL_INTRS);
/*
* http://bcm-specs.sipsolutions.net/Interrupts
* Says for this bit (0x800):
* "Fatal Error
*
* We got this one while testing things when by accident the
* template ram wasn't set to big endian when it should have
* been after writing the initial values. It keeps on being
* triggered, the only way to stop it seems to shut down the
* chip."
*
* Suggesting that we should never get it and if we do we're not
* feeding TX packets into the MAC correctly if we do... Apparently,
* it is valid only on mac version 5 and higher, but I couldn't
* find a reference for that... Since I see them from time to time
* on my card, this suggests an error in the tx path still...
*/
if (intr_status & BWI_INTR_PHY_TXERR) {
if (mac->mac_flags & BWI_MAC_F_PHYE_RESET) {
if_printf(ifp, "%s: intr PHY TX error\n", __func__);