yongari 28de89e113 For controllers that have TX interrupt moderation capability, ... request TX completion interrupt for every 8-th frames. Previously dc(4) requested TX completion interrupt if number of queued TX descriptors is greater than 64. This caused a lot of TX completion interrupt under high TX load once driver queued more than 64 TX descriptors. It's quite normal to see more than 64 queued TX descriptors under high TX load. This change reduces the number of TX completion interrupts to be less than 17k under high TX load. Because this change does not generate TX completion interrupt for each frame, add reclaiming transmitted buffers in dc_tick not to generate false watchdog timeouts. While I'm here add check for queued descriptors in dc_txeof() since there is no more work to do when there is no pending descriptors.		2011-02-18 20:38:05 +00:00
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dcphy.c	- Even after masking the media with IFM_GMASK the result may have bits	2011-01-14 20:26:59 +00:00
if_dc.c	For controllers that have TX interrupt moderation capability,	2011-02-18 20:38:05 +00:00
if_dcreg.h	For controllers that have TX interrupt moderation capability,	2011-02-18 20:38:05 +00:00
pnphy.c	- Even after masking the media with IFM_GMASK the result may have bits	2011-01-14 20:26:59 +00:00