Mitchell Horne 8daa609450 if_genet: don't load DMA mapping when tx_queue is full ... gen_encap() always calls bus_dmamap_load_mbuf_sg() into 'map' (which is the current tx_queue). If the tx_queue is full, it will load with a 'map' that already has a currently active mapping. This violates the busdma(9) KPI. Checking for a full queue and returning ENOBUFS will allow gen_start_locked() to set the IFF_DRV_OACTIVE faster without having to needlessly check if the mbuf will fit (it won't). PR: 256482 Reviewed by: mhorne MFC after: 1 week Submitted by: ghuckriede@blackberry.com (cherry picked from commit a35f66510917f5ac21c11e9642174cda7718fbc6)		2024-07-04 10:31:54 -03:00
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brcmmdio	sys: Remove $FreeBSD$: one-line .c pattern	2023-08-16 11:54:36 -06:00
genet	if_genet: don't load DMA mapping when tx_queue is full	2024-07-04 10:31:54 -03:00