Date: Wed, 24 May 2017 23:08:17 +0000 (UTC) From: Navdeep Parhar <np@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r318837 - stable/11/sys/dev/cxgbe Message-ID: <201705242308.v4ON8HGm070619@repo.freebsd.org>
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Author: np Date: Wed May 24 23:08:17 2017 New Revision: 318837 URL: https://svnweb.freebsd.org/changeset/base/318837 Log: MFC r316506: cxgbe(4): Program the global RSS key once instead of once per ifnet. Modified: stable/11/sys/dev/cxgbe/t4_main.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/dev/cxgbe/t4_main.c ============================================================================== --- stable/11/sys/dev/cxgbe/t4_main.c Wed May 24 22:48:17 2017 (r318836) +++ stable/11/sys/dev/cxgbe/t4_main.c Wed May 24 23:08:17 2017 (r318837) @@ -4238,6 +4238,10 @@ int adapter_full_init(struct adapter *sc) { int rc, i; +#ifdef RSS + uint32_t raw_rss_key[RSS_KEYSIZE / sizeof(uint32_t)]; + uint32_t rss_key[RSS_KEYSIZE / sizeof(uint32_t)]; +#endif ASSERT_SYNCHRONIZED_OP(sc); ADAPTER_LOCK_ASSERT_NOTOWNED(sc); @@ -4263,6 +4267,14 @@ adapter_full_init(struct adapter *sc) taskqueue_start_threads(&sc->tq[i], 1, PI_NET, "%s tq%d", device_get_nameunit(sc->dev), i); } +#ifdef RSS + MPASS(RSS_KEYSIZE == 40); + rss_getkey((void *)&raw_rss_key[0]); + for (i = 0; i < nitems(rss_key); i++) { + rss_key[i] = htobe32(raw_rss_key[nitems(rss_key) - 1 - i]); + } + t4_write_rss_key(sc, &rss_key[0], -1); +#endif if (!(sc->flags & IS_VF)) t4_intr_enable(sc); @@ -4370,8 +4382,6 @@ vi_full_init(struct vi_info *vi) int nbuckets = rss_getnumbuckets(); int hashconfig = rss_gethashconfig(); int extra; - uint32_t raw_rss_key[RSS_KEYSIZE / sizeof(uint32_t)]; - uint32_t rss_key[RSS_KEYSIZE / sizeof(uint32_t)]; #endif ASSERT_SYNCHRONIZED_OP(sc); @@ -4401,17 +4411,10 @@ vi_full_init(struct vi_info *vi) vi->rss_size); } #ifdef RSS - MPASS(RSS_KEYSIZE == 40); if (vi->nrxq != nbuckets) { if_printf(ifp, "nrxq (%d) != kernel RSS buckets (%d);" "performance will be impacted.\n", vi->nrxq, nbuckets); } - - rss_getkey((void *)&raw_rss_key[0]); - for (i = 0; i < nitems(rss_key); i++) { - rss_key[i] = htobe32(raw_rss_key[nitems(rss_key) - 1 - i]); - } - t4_write_rss_key(sc, &rss_key[0], -1); #endif rss = malloc(vi->rss_size * sizeof (*rss), M_CXGBE, M_ZERO | M_WAITOK); for (i = 0; i < vi->rss_size;) {
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