Date: Thu, 27 Jan 2022 22:39:36 GMT From: Vincenzo Maffione <vmaffione@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: 05c9fb008763 - stable/13 - net: iflib: fix vlan processing in the drivers Message-ID: <202201272239.20RMdal1098203@gitrepo.freebsd.org>
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The branch stable/13 has been updated by vmaffione: URL: https://cgit.FreeBSD.org/src/commit/?id=05c9fb008763191f89622a8af2149d14892ce059 commit 05c9fb008763191f89622a8af2149d14892ce059 Author: Vincenzo Maffione <vmaffione@FreeBSD.org> AuthorDate: 2021-12-28 11:05:31 +0000 Commit: Vincenzo Maffione <vmaffione@FreeBSD.org> CommitDate: 2022-01-27 22:39:09 +0000 net: iflib: fix vlan processing in the drivers The logic that sets iri_vtag and M_VLANTAG does not handle the case where the 802.11q VLAN tag is 0. Fix this issue across the iflib drivers. While there, also improve and align the VLAN tag check extraction, by moving it outside the RX descriptor loop, eliminating a local variable and additional checks. PR: 260068 Reviewed by: kbowling, gallatin Reported by: erj MFC after: 1 month Differential Revision: https://reviews.freebsd.org/D33156 (cherry picked from commit f7926a6d0c1029c8da265769e7c57b4065faa2df) --- sys/dev/e1000/em_txrx.c | 11 ++++------- sys/dev/e1000/igb_txrx.c | 21 +++++++++------------ sys/dev/ice/ice_iflib_txrx.c | 13 +++++-------- sys/dev/igc/igc_txrx.c | 8 +++----- sys/dev/ixgbe/ix_txrx.c | 15 +++++---------- sys/dev/ixl/ixl_txrx.c | 13 +++++-------- 6 files changed, 31 insertions(+), 50 deletions(-) diff --git a/sys/dev/e1000/em_txrx.c b/sys/dev/e1000/em_txrx.c index 58f9345ea19d..aebafca73cca 100644 --- a/sys/dev/e1000/em_txrx.c +++ b/sys/dev/e1000/em_txrx.c @@ -671,9 +671,9 @@ em_isc_rxd_pkt_get(void *arg, if_rxd_info_t ri) u32 pkt_info; u32 staterr = 0; bool eop; - int i, cidx, vtag; + int i, cidx; - i = vtag = 0; + i = 0; cidx = ri->iri_cidx; do { @@ -710,12 +710,9 @@ em_isc_rxd_pkt_get(void *arg, if_rxd_info_t ri) em_receive_checksum(staterr, staterr >> 24, ri); if (staterr & E1000_RXD_STAT_VP) { - vtag = le16toh(rxd->wb.upper.vlan); - } - - ri->iri_vtag = vtag; - if (vtag) + ri->iri_vtag = le16toh(rxd->wb.upper.vlan); ri->iri_flags |= M_VLANTAG; + } ri->iri_flowid = le32toh(rxd->wb.lower.hi_dword.rss); ri->iri_rsstype = em_determine_rsstype(pkt_info); diff --git a/sys/dev/e1000/igb_txrx.c b/sys/dev/e1000/igb_txrx.c index 548ceee8ab46..1c1500e78d19 100644 --- a/sys/dev/e1000/igb_txrx.c +++ b/sys/dev/e1000/igb_txrx.c @@ -436,12 +436,12 @@ igb_isc_rxd_pkt_get(void *arg, if_rxd_info_t ri) struct rx_ring *rxr = &que->rxr; union e1000_adv_rx_desc *rxd; - uint16_t pkt_info, len, vtag; + uint16_t pkt_info, len; uint32_t ptype, staterr; int i, cidx; bool eop; - staterr = i = vtag = 0; + staterr = i = 0; cidx = ri->iri_cidx; do { @@ -460,13 +460,6 @@ igb_isc_rxd_pkt_get(void *arg, if_rxd_info_t ri) rxd->wb.upper.status_error = 0; eop = ((staterr & E1000_RXD_STAT_EOP) == E1000_RXD_STAT_EOP); - if (((sc->hw.mac.type == e1000_i350) || - (sc->hw.mac.type == e1000_i354)) && - (staterr & E1000_RXDEXT_STATERR_LB)) - vtag = be16toh(rxd->wb.upper.vlan); - else - vtag = le16toh(rxd->wb.upper.vlan); - /* Make sure bad packets are discarded */ if (eop && ((staterr & E1000_RXDEXT_ERR_FRAME_ERR_MASK) != 0)) { sc->dropped_pkts++; @@ -495,9 +488,13 @@ igb_isc_rxd_pkt_get(void *arg, if_rxd_info_t ri) if ((scctx->isc_capenable & IFCAP_RXCSUM) != 0) igb_rx_checksum(staterr, ri, ptype); - if ((scctx->isc_capenable & IFCAP_VLAN_HWTAGGING) != 0 && - (staterr & E1000_RXD_STAT_VP) != 0) { - ri->iri_vtag = vtag; + if (staterr & E1000_RXD_STAT_VP) { + if (((sc->hw.mac.type == e1000_i350) || + (sc->hw.mac.type == e1000_i354)) && + (staterr & E1000_RXDEXT_STATERR_LB)) + ri->iri_vtag = be16toh(rxd->wb.upper.vlan); + else + ri->iri_vtag = le16toh(rxd->wb.upper.vlan); ri->iri_flags |= M_VLANTAG; } diff --git a/sys/dev/ice/ice_iflib_txrx.c b/sys/dev/ice/ice_iflib_txrx.c index 7d89c51ddec0..0ce59d96c0ed 100644 --- a/sys/dev/ice/ice_iflib_txrx.c +++ b/sys/dev/ice/ice_iflib_txrx.c @@ -285,7 +285,7 @@ ice_ift_rxd_pkt_get(void *arg, if_rxd_info_t ri) if_softc_ctx_t scctx = sc->scctx; struct ice_rx_queue *rxq = &sc->pf_vsi.rx_queues[ri->iri_qsidx]; union ice_32b_rx_flex_desc *cur; - u16 status0, plen, vtag, ptype; + u16 status0, plen, ptype; bool eop; size_t cidx; int i; @@ -310,10 +310,6 @@ ice_ift_rxd_pkt_get(void *arg, if_rxd_info_t ri) cur->wb.status_error0 = 0; eop = (status0 & BIT(ICE_RX_FLEX_DESC_STATUS0_EOF_S)); - if (status0 & BIT(ICE_RX_FLEX_DESC_STATUS0_L2TAG1P_S)) - vtag = le16toh(cur->wb.l2tag1); - else - vtag = 0; /* * Make sure packets with bad L2 values are discarded. @@ -340,10 +336,11 @@ ice_ift_rxd_pkt_get(void *arg, if_rxd_info_t ri) &ri->iri_csum_data, status0, ptype); ri->iri_flowid = le32toh(RX_FLEX_NIC(&cur->wb, rss_hash)); ri->iri_rsstype = ice_ptype_to_hash(ptype); - ri->iri_vtag = vtag; - ri->iri_nfrags = i; - if (vtag) + if (status0 & BIT(ICE_RX_FLEX_DESC_STATUS0_L2TAG1P_S)) { + ri->iri_vtag = le16toh(cur->wb.l2tag1); ri->iri_flags |= M_VLANTAG; + } + ri->iri_nfrags = i; return (0); } diff --git a/sys/dev/igc/igc_txrx.c b/sys/dev/igc/igc_txrx.c index ee4d5a5c0c6b..4f8234c855f6 100644 --- a/sys/dev/igc/igc_txrx.c +++ b/sys/dev/igc/igc_txrx.c @@ -461,12 +461,12 @@ igc_isc_rxd_pkt_get(void *arg, if_rxd_info_t ri) struct rx_ring *rxr = &que->rxr; union igc_adv_rx_desc *rxd; - uint16_t pkt_info, len, vtag; + uint16_t pkt_info, len; uint32_t ptype, staterr; int i, cidx; bool eop; - staterr = i = vtag = 0; + staterr = i = 0; cidx = ri->iri_cidx; do { @@ -485,8 +485,6 @@ igc_isc_rxd_pkt_get(void *arg, if_rxd_info_t ri) rxd->wb.upper.status_error = 0; eop = ((staterr & IGC_RXD_STAT_EOP) == IGC_RXD_STAT_EOP); - vtag = le16toh(rxd->wb.upper.vlan); - /* Make sure bad packets are discarded */ if (eop && ((staterr & IGC_RXDEXT_STATERR_RXE) != 0)) { adapter->dropped_pkts++; @@ -517,7 +515,7 @@ igc_isc_rxd_pkt_get(void *arg, if_rxd_info_t ri) if ((scctx->isc_capenable & IFCAP_VLAN_HWTAGGING) != 0 && (staterr & IGC_RXD_STAT_VP) != 0) { - ri->iri_vtag = vtag; + ri->iri_vtag = le16toh(rxd->wb.upper.vlan); ri->iri_flags |= M_VLANTAG; } diff --git a/sys/dev/ixgbe/ix_txrx.c b/sys/dev/ixgbe/ix_txrx.c index 7c87b0ec10fc..589f4c72c9ce 100644 --- a/sys/dev/ixgbe/ix_txrx.c +++ b/sys/dev/ixgbe/ix_txrx.c @@ -399,7 +399,6 @@ ixgbe_isc_rxd_pkt_get(void *arg, if_rxd_info_t ri) union ixgbe_adv_rx_desc *rxd; uint16_t pkt_info, len, cidx, i; - uint16_t vtag = 0; uint32_t ptype; uint32_t staterr = 0; bool eop; @@ -424,12 +423,6 @@ ixgbe_isc_rxd_pkt_get(void *arg, if_rxd_info_t ri) rxd->wb.upper.status_error = 0; eop = ((staterr & IXGBE_RXD_STAT_EOP) != 0); - if ( (rxr->vtag_strip) && (staterr & IXGBE_RXD_STAT_VP) ) { - vtag = le16toh(rxd->wb.upper.vlan); - } else { - vtag = 0; - } - /* Make sure bad packets are discarded */ if (eop && (staterr & IXGBE_RXDADV_ERR_FRAME_ERR_MASK) != 0) { if (sc->feat_en & IXGBE_FEATURE_VF) @@ -463,10 +456,12 @@ ixgbe_isc_rxd_pkt_get(void *arg, if_rxd_info_t ri) else ri->iri_rsstype = M_HASHTYPE_OPAQUE_HASH; } - ri->iri_vtag = vtag; - ri->iri_nfrags = i; - if (vtag) + if ((rxr->vtag_strip) && (staterr & IXGBE_RXD_STAT_VP)) { + ri->iri_vtag = le16toh(rxd->wb.upper.vlan); ri->iri_flags |= M_VLANTAG; + } + + ri->iri_nfrags = i; return (0); } /* ixgbe_isc_rxd_pkt_get */ diff --git a/sys/dev/ixl/ixl_txrx.c b/sys/dev/ixl/ixl_txrx.c index 58ae751e5e10..20050e73c09b 100644 --- a/sys/dev/ixl/ixl_txrx.c +++ b/sys/dev/ixl/ixl_txrx.c @@ -663,7 +663,7 @@ ixl_isc_rxd_pkt_get(void *arg, if_rxd_info_t ri) struct rx_ring *rxr = &que->rxr; union i40e_rx_desc *cur; u32 status, error; - u16 plen, vtag; + u16 plen; u64 qword; u8 ptype; bool eop; @@ -694,10 +694,6 @@ ixl_isc_rxd_pkt_get(void *arg, if_rxd_info_t ri) cur->wb.qword1.status_error_len = 0; eop = (status & (1 << I40E_RX_DESC_STATUS_EOF_SHIFT)); - if (status & (1 << I40E_RX_DESC_STATUS_L2TAG1P_SHIFT)) - vtag = le16toh(cur->wb.qword0.lo_dword.l2tag1); - else - vtag = 0; /* ** Make sure bad packets are discarded, @@ -724,10 +720,11 @@ ixl_isc_rxd_pkt_get(void *arg, if_rxd_info_t ri) rxr->csum_errs += ixl_rx_checksum(ri, status, error, ptype); ri->iri_flowid = le32toh(cur->wb.qword0.hi_dword.rss); ri->iri_rsstype = ixl_ptype_to_hash(ptype); - ri->iri_vtag = vtag; - ri->iri_nfrags = i; - if (vtag) + if (status & (1 << I40E_RX_DESC_STATUS_L2TAG1P_SHIFT)) { + ri->iri_vtag = le16toh(cur->wb.qword0.lo_dword.l2tag1); ri->iri_flags |= M_VLANTAG; + } + ri->iri_nfrags = i; return (0); }
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