Date: Fri, 17 Jun 2016 16:23:46 GMT From: vincenzo@FreeBSD.org To: svn-soc-all@FreeBSD.org Subject: socsvn commit: r305294 - soc2016/vincenzo/head/sys/dev/netmap Message-ID: <201606171623.u5HGNkbP024042@socsvn.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: vincenzo Date: Fri Jun 17 16:23:46 2016 New Revision: 305294 URL: http://svnweb.FreeBSD.org/socsvn/?view=rev&rev=305294 Log: freebsd: ptnet_rx_eof: add mbuf allocation Modified: soc2016/vincenzo/head/sys/dev/netmap/if_ptnet.c Modified: soc2016/vincenzo/head/sys/dev/netmap/if_ptnet.c ============================================================================== --- soc2016/vincenzo/head/sys/dev/netmap/if_ptnet.c Fri Jun 17 16:23:37 2016 (r305293) +++ soc2016/vincenzo/head/sys/dev/netmap/if_ptnet.c Fri Jun 17 16:23:46 2016 (r305294) @@ -1167,8 +1167,18 @@ struct netmap_slot *slot = ring->slot + head; unsigned int nmbuf_len = slot->len; uint8_t *nmbuf = NMB(na, slot); - struct mbuf *m = NULL; + struct mbuf *m; + if (unlikely(nmbuf_len > MCLBYTES)) { + RD(1, "Dropping long frame: len %u > %u", + nmbuf_len, MCLBYTES); + goto next; + } + + /* We use m_getcl() to allocate an mbuf with standard + * cluster size (MCLBYTES). In the future we could use m_getjcl() + * to choose different sizes. */ + m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); if (unlikely(m == NULL)) { device_printf(sc->dev, "%s: failed to allocate mbuf" "(len=%d)\n", __func__, nmbuf_len); @@ -1187,7 +1197,7 @@ PTNET_Q_UNLOCK(pq); (*ifp->if_input)(ifp, m); PTNET_Q_LOCK(pq); - +next: head = nm_next(head, lim); budget--; }
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201606171623.u5HGNkbP024042>