Date: Fri, 17 Jun 2016 16:23:38 GMT From: vincenzo@FreeBSD.org To: svn-soc-all@FreeBSD.org Subject: socsvn commit: r305293 - soc2016/vincenzo/head/sys/dev/netmap Message-ID: <201606171623.u5HGNcMJ023836@socsvn.freebsd.org>
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Author: vincenzo Date: Fri Jun 17 16:23:37 2016 New Revision: 305293 URL: http://svnweb.FreeBSD.org/socsvn/?view=rev&rev=305293 Log: freebsd: ptnet_rx_eof: add batch limiting (budget) 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 16:23:28 2016 (r305292) +++ soc2016/vincenzo/head/sys/dev/netmap/if_ptnet.c Fri Jun 17 16:23:37 2016 (r305293) @@ -1153,6 +1153,7 @@ unsigned int const lim = kring->nkr_num_slots - 1; unsigned int head = ring->head; struct ifnet *ifp = sc->ifp; + unsigned int budget = 512; PTNET_Q_LOCK(pq); @@ -1162,7 +1163,7 @@ kring->nr_kflags &= ~NKR_PENDINTR; - while (head != ring->tail) { + while (head != ring->tail && budget) { struct netmap_slot *slot = ring->slot + head; unsigned int nmbuf_len = slot->len; uint8_t *nmbuf = NMB(na, slot); @@ -1183,11 +1184,12 @@ memcpy(m->m_data, nmbuf, nmbuf_len); m->m_len = nmbuf_len; - head = nm_next(head, lim); - PTNET_Q_UNLOCK(pq); (*ifp->if_input)(ifp, m); PTNET_Q_LOCK(pq); + + head = nm_next(head, lim); + budget--; } PTNET_Q_UNLOCK(pq);
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