CVS commit: src/sys/dev/pci

["Jared D. McNeill" <jmcneill%netbsd.org@localhost>]

Module Name:    src
Committed By:   jmcneill
Date:           Thu Sep 23 10:31:23 UTC 2021

Modified Files:
        src/sys/dev/pci: if_ena.c

Log Message:
ena: fix packet reordering issue

A reorder occures when
- memory allocation fails in bus_dmamap_load_mbuf() or
- submission queue is full

This patch makes ena(4) to
- allocate memory in advance (BUS_DMA_ALLOCNOW flag in bus_dmamap_create())
- check if the queue is vacant before pcq_get()

Patch from KUSABA Takeshi <t-kusaba%iij.ad.jp@localhost>


To generate a diff of this commit:
cvs rdiff -u -r1.31 -r1.32 src/sys/dev/pci/if_ena.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.