rtems/rtems-libbsd
1
0
Fork 0
mirror of https://git.rtems.org/rtems-libbsd/ synced 2025-06-03 17:29:29 +08:00
Code Issues Packages Projects Releases Wiki Activity

rtwn: Align mbuf to avoid realignment in rx path

Browse Source 
See ieee80211_realign().
This commit is contained in:
Sebastian Huber 2018-10-04 14:10:10 +02:00
parent 2eae88b07c
commit f9d4e1d8c1
1 changed files with 7 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
freebsd/sys/dev/rtwn/usb/rtwn_usb_rx.c
View File

@ -128,7 +128,11 @@ rtwn_rx_copy_to_mbuf(struct rtwn_softc *sc, struct rtwn_rx_stat_common *stat,
if (rtwn_rx_check_pre_alloc(sc, stat) != 0)
goto fail;
#ifndef __rtems__
m = m_get2(totlen, M_NOWAIT, MT_DATA, M_PKTHDR);
#else /* __rtems__ */
m = m_get2(totlen + ETHER_ALIGN, M_NOWAIT, MT_DATA, M_PKTHDR);
#endif /* __rtems__ */
if (__predict_false(m == NULL)) {
device_printf(sc->sc_dev, "%s: could not allocate RX mbuf\n",
__func__);
@ -136,6 +140,9 @@ rtwn_rx_copy_to_mbuf(struct rtwn_softc *sc, struct rtwn_rx_stat_common *stat,
}
/* Finalize mbuf. */
#ifdef __rtems__
m->m_data += ETHER_ALIGN;
#endif /* __rtems__ */
memcpy(mtod(m, uint8_t *), (uint8_t *)stat, totlen);
m->m_pkthdr.len = m->m_len = totlen;