From 9f99061ef9c95b171fc92d34026222bb5e052337 Mon Sep 17 00:00:00 2001 From: Krzysztof Galazka Date: Tue, 2 Mar 2021 17:33:11 -0800 Subject: [PATCH] ixl(4): Report RX errors as sum of all RX error counters HW keeps track of RX errors using several counters, each for specific type of errors. Report RX errors to OS as sum of all those counters: CRC errors, illegal bytes, checksum, length, undersize, fragment, oversize and jabber errors. There is no HW counter for frames with invalid L3/L4 checksums so add a SW one. Also add a "rx_errors" sysctl with a copy of netstat IERRORS counter value to make it easier accessible from scripts. Reviewed By: erj Tested By: gowtham.kumar.ks@intel.com Sponsored By: Intel Corporation Differential Revision: https://reviews.freebsd.org/D27639 --- sys/dev/ixl/ixl.h | 1 + sys/dev/ixl/ixl_pf_main.c | 15 +++++++++++++-- sys/dev/ixl/ixl_txrx.c | 16 +++++++++------- 3 files changed, 23 insertions(+), 9 deletions(-) diff --git a/sys/dev/ixl/ixl.h b/sys/dev/ixl/ixl.h index 3eb0fa4f6b5a..9828760e4ea6 100644 --- a/sys/dev/ixl/ixl.h +++ b/sys/dev/ixl/ixl.h @@ -390,6 +390,7 @@ struct rx_ring { u64 rx_packets; u64 rx_bytes; u64 desc_errs; + u64 csum_errs; }; /* diff --git a/sys/dev/ixl/ixl_pf_main.c b/sys/dev/ixl/ixl_pf_main.c index 2714b1a0e6d8..070ddaef522e 100644 --- a/sys/dev/ixl/ixl_pf_main.c +++ b/sys/dev/ixl/ixl_pf_main.c @@ -808,6 +808,11 @@ ixl_vsi_add_sysctls(struct ixl_vsi * vsi, const char * sysctl_name, bool queues_ vsi_list = SYSCTL_CHILDREN(vsi->vsi_node); ixl_add_sysctls_eth_stats(&vsi->sysctl_ctx, vsi_list, &vsi->eth_stats); + /* Copy of netstat RX errors counter for validation purposes */ + SYSCTL_ADD_UQUAD(&vsi->sysctl_ctx, vsi_list, OID_AUTO, "rx_errors", + CTLFLAG_RD, &vsi->ierrors, + "RX packet errors"); + if (queues_sysctls) ixl_vsi_add_queues_stats(vsi, &vsi->sysctl_ctx); } @@ -2183,7 +2188,7 @@ ixl_update_vsi_stats(struct ixl_vsi *vsi) struct ixl_pf *pf; struct ifnet *ifp; struct i40e_eth_stats *es; - u64 tx_discards; + u64 tx_discards, csum_errs; struct i40e_hw_port_stats *nsd; @@ -2196,6 +2201,11 @@ ixl_update_vsi_stats(struct ixl_vsi *vsi) tx_discards = es->tx_discards + nsd->tx_dropped_link_down; + csum_errs = 0; + for (int i = 0; i < vsi->num_rx_queues; i++) + csum_errs += vsi->rx_queues[i].rxr.csum_errs; + nsd->checksum_error = csum_errs; + /* Update ifnet stats */ IXL_SET_IPACKETS(vsi, es->rx_unicast + es->rx_multicast + @@ -2209,7 +2219,8 @@ ixl_update_vsi_stats(struct ixl_vsi *vsi) IXL_SET_OMCASTS(vsi, es->tx_multicast); IXL_SET_IERRORS(vsi, nsd->crc_errors + nsd->illegal_bytes + - nsd->rx_undersize + nsd->rx_oversize + nsd->rx_fragments + + nsd->checksum_error + nsd->rx_length_errors + + nsd->rx_undersize + nsd->rx_fragments + nsd->rx_oversize + nsd->rx_jabber); IXL_SET_OERRORS(vsi, es->tx_errors); IXL_SET_IQDROPS(vsi, es->rx_discards + nsd->eth.rx_discards); diff --git a/sys/dev/ixl/ixl_txrx.c b/sys/dev/ixl/ixl_txrx.c index e589bb8392cd..bdd3cb8725f8 100644 --- a/sys/dev/ixl/ixl_txrx.c +++ b/sys/dev/ixl/ixl_txrx.c @@ -51,7 +51,7 @@ #endif /* Local Prototypes */ -static void ixl_rx_checksum(if_rxd_info_t ri, u32 status, u32 error, u8 ptype); +static u8 ixl_rx_checksum(if_rxd_info_t ri, u32 status, u32 error, u8 ptype); static int ixl_isc_txd_encap(void *arg, if_pkt_info_t pi); static void ixl_isc_txd_flush(void *arg, uint16_t txqid, qidx_t pidx); @@ -720,7 +720,7 @@ ixl_isc_rxd_pkt_get(void *arg, if_rxd_info_t ri) rxr->rx_packets++; if ((if_getcapenable(vsi->ifp) & IFCAP_RXCSUM) != 0) - ixl_rx_checksum(ri, status, error, ptype); + 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; @@ -737,7 +737,7 @@ ixl_isc_rxd_pkt_get(void *arg, if_rxd_info_t ri) * doesn't spend time verifying the checksum. * *********************************************************************/ -static void +static u8 ixl_rx_checksum(if_rxd_info_t ri, u32 status, u32 error, u8 ptype) { struct i40e_rx_ptype_decoded decoded; @@ -746,7 +746,7 @@ ixl_rx_checksum(if_rxd_info_t ri, u32 status, u32 error, u8 ptype) /* No L3 or L4 checksum was calculated */ if (!(status & (1 << I40E_RX_DESC_STATUS_L3L4P_SHIFT))) - return; + return (0); decoded = decode_rx_desc_ptype(ptype); @@ -756,7 +756,7 @@ ixl_rx_checksum(if_rxd_info_t ri, u32 status, u32 error, u8 ptype) if (status & (1 << I40E_RX_DESC_STATUS_IPV6EXADD_SHIFT)) { ri->iri_csum_flags = 0; - return; + return (1); } } @@ -764,17 +764,19 @@ ixl_rx_checksum(if_rxd_info_t ri, u32 status, u32 error, u8 ptype) /* IPv4 checksum error */ if (error & (1 << I40E_RX_DESC_ERROR_IPE_SHIFT)) - return; + return (1); ri->iri_csum_flags |= CSUM_L3_VALID; ri->iri_csum_flags |= CSUM_L4_CALC; /* L4 checksum error */ if (error & (1 << I40E_RX_DESC_ERROR_L4E_SHIFT)) - return; + return (1); ri->iri_csum_flags |= CSUM_L4_VALID; ri->iri_csum_data |= htons(0xffff); + + return (0); } /* Set Report Status queue fields to 0 */