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| /freebsd-10.0-release/sys/dev/bge/ | ||
| H A D | if_bgereg.h | diff 199011 Fri Nov 06 23:13:29 MST 2009 yongari Reimplement Rx buffer allocation to handle dma map load failure. Introduce two spare dma maps for standard buffer and jumbo buffer respectively. If loading a dma map failed reuse previously loaded dma map. This should fix unloaded dma map is used in case of dma map load failure. Also don't blindly unload dma map and defer dma map sync and unloading operation until we know dma map for new buffer is successfully loaded. This change saves unnecessary dma load/unload operation. Previously bge(4) tried to reuse mbuf with unloaded dma map which is really bad thing in bus_dma(9) perspective. While I'm here update if_iqdrops if we can't allocate Rx buffers. |
| H A D | if_bge.c | diff 199011 Fri Nov 06 23:13:29 MST 2009 yongari Reimplement Rx buffer allocation to handle dma map load failure. Introduce two spare dma maps for standard buffer and jumbo buffer respectively. If loading a dma map failed reuse previously loaded dma map. This should fix unloaded dma map is used in case of dma map load failure. Also don't blindly unload dma map and defer dma map sync and unloading operation until we know dma map for new buffer is successfully loaded. This change saves unnecessary dma load/unload operation. Previously bge(4) tried to reuse mbuf with unloaded dma map which is really bad thing in bus_dma(9) perspective. While I'm here update if_iqdrops if we can't allocate Rx buffers. |
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