diff options
| author | yongari <yongari@FreeBSD.org> | 2008-01-18 08:32:08 +0000 |
|---|---|---|
| committer | yongari <yongari@FreeBSD.org> | 2008-01-18 08:32:08 +0000 |
| commit | c138b43f21961dbc95d48117d8a6dbdf2c6c90cf (patch) | |
| tree | 50e30144bb34c2a49421adb95eef851b3f678b1f /sys/dev/stge | |
| parent | 80ec49a2cfa42274e966bd730533a2befe3290a3 (diff) | |
| download | FreeBSD-src-c138b43f21961dbc95d48117d8a6dbdf2c6c90cf.zip FreeBSD-src-c138b43f21961dbc95d48117d8a6dbdf2c6c90cf.tar.gz | |
Use m_collapse(9) to collapse mbuf chains instead of relying on
shortest possible chain of mbufs of m_defrag(9). What we want is
chains of mbufs that can be safely stored to a Tx descriptor which
can have up to STGE_MAXTXSEGS mbufs. The ethernet controller does
not need to align Tx buffers on 32bit boundary. So the use of
m_defrag(9) was waste of time.
Diffstat (limited to 'sys/dev/stge')
| -rw-r--r-- | sys/dev/stge/if_stge.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/dev/stge/if_stge.c b/sys/dev/stge/if_stge.c index c397103..e78ff25ab 100644 --- a/sys/dev/stge/if_stge.c +++ b/sys/dev/stge/if_stge.c @@ -1229,7 +1229,7 @@ stge_encap(struct stge_softc *sc, struct mbuf **m_head) error = bus_dmamap_load_mbuf_sg(sc->sc_cdata.stge_tx_tag, txd->tx_dmamap, *m_head, txsegs, &nsegs, 0); if (error == EFBIG) { - m = m_defrag(*m_head, M_DONTWAIT); + m = m_collapse(*m_head, M_DONTWAIT, STGE_MAXTXSEGS); if (m == NULL) { m_freem(*m_head); *m_head = NULL; |
