FreeBSD Bugzilla – Attachment 225638 Details for
Bug 256482
[genet] gen_encap() dma loads into active map when 'tx_queue' is full
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[patch]
Potential Fix
if_genet.c.diff (text/plain), 648 bytes, created by
ghuckriede
on 2021-06-08 14:48:32 UTC
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Description:
Potential Fix
Filename:
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Creator:
ghuckriede
Created:
2021-06-08 14:48:32 UTC
Size:
648 bytes
patch
obsolete
>diff --git a/sys/arm64/broadcom/genet/if_genet.c b/sys/arm64/broadcom/genet/if_genet.c >index d0fe2b0d5e7..082a3527981 100644 >--- a/sys/arm64/broadcom/genet/if_genet.c >+++ b/sys/arm64/broadcom/genet/if_genet.c >@@ -991,6 +991,10 @@ gen_encap(struct gen_softc *sc, struct mbuf **mp) > GEN_ASSERT_LOCKED(sc); > > q = &sc->tx_queue[DEF_TXQUEUE]; >+ if (q->queued == q->nentries) { >+ /* tx_queue is full */ >+ return (ENOBUFS); >+ } > > m = *mp; > >@@ -1075,6 +1079,7 @@ gen_encap(struct gen_softc *sc, struct mbuf **mp) > return (error); > } > if (nsegs == 0) { >+ bus_dmamap_unload(sc->tx_buf_tag, map); > m_freem(*mp); > *mp = NULL; > return (EIO);
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bug 256482
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