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Add helpers for implementing .ndo_xdp_xmit(). Same as for XDP_TX, accumulate up to 16 DMA-mapped frames on the stack, then flush. If DMA mapping is failed for some reason, don't try mapping further frames, but still flush what was already prepared. DMA address of a head frame is stored in its headroom, assuming it has enough of it for an 8 (or 4) byte value. In addition to @prep and @xmit driver callbacks in XDP_TX, xmit also needs @finalize to kick the XDPSQ after filling. Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com> Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> |
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| acpi | ||
| asm-generic | ||
| clocksource | ||
| crypto | ||
| cxl | ||
| drm | ||
| dt-bindings | ||
| hyperv | ||
| keys | ||
| kunit | ||
| kvm | ||
| linux | ||
| math-emu | ||
| media | ||
| memory | ||
| misc | ||
| net | ||
| pcmcia | ||
| ras | ||
| rdma | ||
| rv | ||
| scsi | ||
| soc | ||
| sound | ||
| target | ||
| trace | ||
| uapi | ||
| ufs | ||
| vdso | ||
| video | ||
| xen | ||
| Kbuild | ||