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| /freebsd-11-stable/sys/dev/sf/ | ||
| H A D | if_sf.c | diff 81798 Thu Aug 16 18:15:16 MDT 2001 wpaul After one more day of testing, make what I hope are the final tweaks to prevent/workaround TX lockups in this driver. The secret seems to be to not let the TX DMA queue become too full. If we have too many packets in the queue, we should wait for them to drain a bit before trying to queue more. This should prevent the lockup from occurring, and if it does occur, there is special code in sf_start() to kick the NIC in the head and get it going again. Special thanks to Glen Neff for helping me test this fix. |
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