From nobody Thu Dec 26 21:26:36 2024 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 391E4E7D0B5 for ; Thu, 21 Sep 2023 20:36:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232052AbjIUUgQ (ORCPT ); Thu, 21 Sep 2023 16:36:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57518 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232366AbjIUUfC (ORCPT ); Thu, 21 Sep 2023 16:35:02 -0400 Received: from mx0b-0016f401.pphosted.com (mx0a-0016f401.pphosted.com [67.231.148.174]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 17708768FC; Thu, 21 Sep 2023 10:33:54 -0700 (PDT) Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 38L7OFbr001335; Thu, 21 Sep 2023 01:51:01 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h=from : to : cc : subject : date : message-id : mime-version : content-type; s=pfpt0220; bh=d+4VxAL2ToQzLmP1GStX/dXLI065jt9MtG7eKxr52WI=; b=hXvVJd2ONn/DOHOpoDlWZLsfXIN6XDO9TQDZ3ENVRpuhyht3vNph+VOyomKdRq5lvjyJ dI15DTcNBqliq/O7TVrBCXzPWyFLhv0pmBock9fWv1i4XpQnaWAZHoj8Q6VWESNH5GcD 0gO8wXm9AJOw3YVD0c24yEnrkCeqeqAwmQ8GNU2p1W7q+NWP6gTNS8C+xU+VfibD+I2y isJoq9Y9JfFUJkEziQQJ/Ah98Zc+xfQXd4lyUjTKjRzm1ksSEVfIkeB/HHAKN1yMqxUg jq+W7AQLOrTzWvijPIbNSLR11F98h47eQqu3aIshp/njzcS6A0t/WpvkIP6xnAVEvAS5 nQ== Received: from dc5-exch01.marvell.com ([199.233.59.181]) by mx0a-0016f401.pphosted.com (PPS) with ESMTPS id 3t7u4ddbj3-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Thu, 21 Sep 2023 01:51:01 -0700 Received: from DC5-EXCH01.marvell.com (10.69.176.38) by DC5-EXCH01.marvell.com (10.69.176.38) with Microsoft SMTP Server (TLS) id 15.0.1497.48; Thu, 21 Sep 2023 01:50:59 -0700 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH01.marvell.com (10.69.176.38) with Microsoft SMTP Server id 15.0.1497.48 via Frontend Transport; Thu, 21 Sep 2023 01:50:59 -0700 Received: from hyd1soter3.marvell.com (unknown [10.29.37.12]) by maili.marvell.com (Postfix) with ESMTP id 2F2325B693B; Thu, 21 Sep 2023 01:50:55 -0700 (PDT) From: Hariprasad Kelam To: , CC: , , , , , , , , , , Subject: [net-next PatchV3] octeontx2-pf: Tc flower offload support for MPLS Date: Thu, 21 Sep 2023 14:20:55 +0530 Message-ID: <20230921085055.7258-1-hkelam@marvell.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-Proofpoint-ORIG-GUID: wqUqzvyruIt7qlDPvJasKxT5-rY3qvQe X-Proofpoint-GUID: wqUqzvyruIt7qlDPvJasKxT5-rY3qvQe X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.980,Hydra:6.0.601,FMLib:17.11.176.26 definitions=2023-09-21_06,2023-09-20_01,2023-05-22_02 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" This patch extends flower offload support for MPLS protocol. Due to hardware limitation, currently driver supports lse depth up to 4. Signed-off-by: Hariprasad Kelam Signed-off-by: Sunil Goutham Reviewed-by: Simon Horman --- v2 * instead of magic number 0xffffff00 use appropriate mask OTX2_FLOWER_MASK_MPLS_NON_TTL v3 * correct the subject prefix .../net/ethernet/marvell/octeontx2/af/mbox.h | 6 ++ .../net/ethernet/marvell/octeontx2/af/npc.h | 8 +++ .../marvell/octeontx2/af/rvu_debugfs.c | 53 ++++++++++++++++ .../marvell/octeontx2/af/rvu_npc_fs.c | 62 +++++++++++++++++++ .../ethernet/marvell/octeontx2/nic/otx2_tc.c | 58 +++++++++++++++++ 5 files changed, 187 insertions(+) diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net= /ethernet/marvell/octeontx2/af/mbox.h index c5bd7747fc0e..6845556581c3 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h +++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h @@ -1473,6 +1473,12 @@ struct flow_msg { u8 next_header; }; __be16 vlan_itci; +#define OTX2_FLOWER_MASK_MPLS_LB GENMASK(31, 12) +#define OTX2_FLOWER_MASK_MPLS_TC GENMASK(11, 9) +#define OTX2_FLOWER_MASK_MPLS_BOS BIT(8) +#define OTX2_FLOWER_MASK_MPLS_TTL GENMASK(7, 0) +#define OTX2_FLOWER_MASK_MPLS_NON_TTL GENMASK(31, 8) + u32 mpls_lse[4]; }; struct npc_install_flow_req { diff --git a/drivers/net/ethernet/marvell/octeontx2/af/npc.h b/drivers/net/= ethernet/marvell/octeontx2/af/npc.h index de9fbd98dfb7..ab3e39eef2eb 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/npc.h +++ b/drivers/net/ethernet/marvell/octeontx2/af/npc.h @@ -206,6 +206,14 @@ enum key_fields { NPC_SPORT_SCTP, NPC_DPORT_SCTP, NPC_IPSEC_SPI, + NPC_MPLS1_LBTCBOS, + NPC_MPLS1_TTL, + NPC_MPLS2_LBTCBOS, + NPC_MPLS2_TTL, + NPC_MPLS3_LBTCBOS, + NPC_MPLS3_TTL, + NPC_MPLS4_LBTCBOS, + NPC_MPLS4_TTL, NPC_HEADER_FIELDS_MAX, NPC_CHAN =3D NPC_HEADER_FIELDS_MAX, /* Valid when Rx */ NPC_PF_FUNC, /* Valid when Tx */ diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c b/driv= ers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c index d30e84803481..bd817ee88735 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c @@ -2756,6 +2756,27 @@ static int rvu_dbg_npc_rx_miss_stats_display(struct = seq_file *filp, RVU_DEBUG_SEQ_FOPS(npc_rx_miss_act, npc_rx_miss_stats_display, NULL); +#define RVU_DBG_PRINT_MPLS_TTL(pkt, mask) = \ +do { \ + seq_printf(s, "%ld ", FIELD_GET(OTX2_FLOWER_MASK_MPLS_TTL, pkt)); \ + seq_printf(s, "mask 0x%lx\n", \ + FIELD_GET(OTX2_FLOWER_MASK_MPLS_TTL, mask)); \ +} while (0) = \ + +#define RVU_DBG_PRINT_MPLS_LBTCBOS(_pkt, _mask) = \ +do { \ + typeof(_pkt) (pkt) =3D (_pkt); \ + typeof(_mask) (mask) =3D (_mask); \ + seq_printf(s, "%ld %ld %ld\n", \ + FIELD_GET(OTX2_FLOWER_MASK_MPLS_LB, pkt), \ + FIELD_GET(OTX2_FLOWER_MASK_MPLS_TC, pkt), \ + FIELD_GET(OTX2_FLOWER_MASK_MPLS_BOS, pkt)); \ + seq_printf(s, "\tmask 0x%lx 0x%lx 0x%lx\n", \ + FIELD_GET(OTX2_FLOWER_MASK_MPLS_LB, mask), \ + FIELD_GET(OTX2_FLOWER_MASK_MPLS_TC, mask), \ + FIELD_GET(OTX2_FLOWER_MASK_MPLS_BOS, mask)); \ +} while (0) = \ + static void rvu_dbg_npc_mcam_show_flows(struct seq_file *s, struct rvu_npc_mcam_rule *rule) { @@ -2836,6 +2857,38 @@ static void rvu_dbg_npc_mcam_show_flows(struct seq_f= ile *s, seq_printf(s, "0x%x ", ntohl(rule->packet.spi)); seq_printf(s, "mask 0x%x\n", ntohl(rule->mask.spi)); break; + case NPC_MPLS1_LBTCBOS: + RVU_DBG_PRINT_MPLS_LBTCBOS(rule->packet.mpls_lse[0], + rule->mask.mpls_lse[0]); + break; + case NPC_MPLS1_TTL: + RVU_DBG_PRINT_MPLS_TTL(rule->packet.mpls_lse[0], + rule->mask.mpls_lse[0]); + break; + case NPC_MPLS2_LBTCBOS: + RVU_DBG_PRINT_MPLS_LBTCBOS(rule->packet.mpls_lse[1], + rule->mask.mpls_lse[1]); + break; + case NPC_MPLS2_TTL: + RVU_DBG_PRINT_MPLS_TTL(rule->packet.mpls_lse[1], + rule->mask.mpls_lse[1]); + break; + case NPC_MPLS3_LBTCBOS: + RVU_DBG_PRINT_MPLS_LBTCBOS(rule->packet.mpls_lse[2], + rule->mask.mpls_lse[2]); + break; + case NPC_MPLS3_TTL: + RVU_DBG_PRINT_MPLS_TTL(rule->packet.mpls_lse[2], + rule->mask.mpls_lse[2]); + break; + case NPC_MPLS4_LBTCBOS: + RVU_DBG_PRINT_MPLS_LBTCBOS(rule->packet.mpls_lse[3], + rule->mask.mpls_lse[3]); + break; + case NPC_MPLS4_TTL: + RVU_DBG_PRINT_MPLS_TTL(rule->packet.mpls_lse[3], + rule->mask.mpls_lse[3]); + break; default: seq_puts(s, "\n"); break; diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c b/drive= rs/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c index 237f82082ebe..114e4ec21802 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c @@ -43,6 +43,14 @@ static const char * const npc_flow_names[] =3D { [NPC_DPORT_SCTP] =3D "sctp destination port", [NPC_LXMB] =3D "Mcast/Bcast header ", [NPC_IPSEC_SPI] =3D "SPI ", + [NPC_MPLS1_LBTCBOS] =3D "lse depth 1 label tc bos", + [NPC_MPLS1_TTL] =3D "lse depth 1 ttl", + [NPC_MPLS2_LBTCBOS] =3D "lse depth 2 label tc bos", + [NPC_MPLS2_TTL] =3D "lse depth 2 ttl", + [NPC_MPLS3_LBTCBOS] =3D "lse depth 3 label tc bos", + [NPC_MPLS3_TTL] =3D "lse depth 3 ttl", + [NPC_MPLS4_LBTCBOS] =3D "lse depth 4 label tc bos", + [NPC_MPLS4_TTL] =3D "lse depth 4", [NPC_UNKNOWN] =3D "unknown", }; @@ -528,6 +536,14 @@ do { \ NPC_SCAN_HDR(NPC_IPSEC_SPI, NPC_LID_LD, NPC_LT_LD_AH, 4, 4); NPC_SCAN_HDR(NPC_IPSEC_SPI, NPC_LID_LE, NPC_LT_LE_ESP, 0, 4); + NPC_SCAN_HDR(NPC_MPLS1_LBTCBOS, NPC_LID_LC, NPC_LT_LC_MPLS, 0, 3); + NPC_SCAN_HDR(NPC_MPLS1_TTL, NPC_LID_LC, NPC_LT_LC_MPLS, 3, 1); + NPC_SCAN_HDR(NPC_MPLS2_LBTCBOS, NPC_LID_LC, NPC_LT_LC_MPLS, 4, 3); + NPC_SCAN_HDR(NPC_MPLS2_TTL, NPC_LID_LC, NPC_LT_LC_MPLS, 7, 1); + NPC_SCAN_HDR(NPC_MPLS3_LBTCBOS, NPC_LID_LC, NPC_LT_LC_MPLS, 8, 3); + NPC_SCAN_HDR(NPC_MPLS3_TTL, NPC_LID_LC, NPC_LT_LC_MPLS, 11, 1); + NPC_SCAN_HDR(NPC_MPLS4_LBTCBOS, NPC_LID_LC, NPC_LT_LC_MPLS, 12, 3); + NPC_SCAN_HDR(NPC_MPLS4_TTL, NPC_LID_LC, NPC_LT_LC_MPLS, 15, 1); /* SMAC follows the DMAC(which is 6 bytes) */ NPC_SCAN_HDR(NPC_SMAC, NPC_LID_LA, la_ltype, la_start + 6, 6); @@ -593,6 +609,11 @@ static void npc_set_features(struct rvu *rvu, int blka= ddr, u8 intf) /* for L2M/L2B/L3M/L3B, check if the type is present in the key */ if (npc_check_field(rvu, blkaddr, NPC_LXMB, intf)) *features |=3D BIT_ULL(NPC_LXMB); + + for (hdr =3D NPC_MPLS1_LBTCBOS; hdr <=3D NPC_MPLS4_TTL; hdr++) { + if (npc_check_field(rvu, blkaddr, hdr, intf)) + *features |=3D BIT_ULL(hdr); + } } /* Scan key extraction profile and record how fields of our interest @@ -959,6 +980,47 @@ do { \ NPC_WRITE_FLOW(NPC_INNER_VID, vlan_itci, ntohs(pkt->vlan_itci), 0, ntohs(mask->vlan_itci), 0); + NPC_WRITE_FLOW(NPC_MPLS1_LBTCBOS, mpls_lse, + FIELD_GET(OTX2_FLOWER_MASK_MPLS_NON_TTL, + pkt->mpls_lse[0]), 0, + FIELD_GET(OTX2_FLOWER_MASK_MPLS_NON_TTL, + mask->mpls_lse[0]), 0); + NPC_WRITE_FLOW(NPC_MPLS1_TTL, mpls_lse, + FIELD_GET(OTX2_FLOWER_MASK_MPLS_TTL, + pkt->mpls_lse[0]), 0, + FIELD_GET(OTX2_FLOWER_MASK_MPLS_TTL, + mask->mpls_lse[0]), 0); + NPC_WRITE_FLOW(NPC_MPLS2_LBTCBOS, mpls_lse, + FIELD_GET(OTX2_FLOWER_MASK_MPLS_NON_TTL, + pkt->mpls_lse[1]), 0, + FIELD_GET(OTX2_FLOWER_MASK_MPLS_NON_TTL, + mask->mpls_lse[1]), 0); + NPC_WRITE_FLOW(NPC_MPLS2_TTL, mpls_lse, + FIELD_GET(OTX2_FLOWER_MASK_MPLS_TTL, + pkt->mpls_lse[1]), 0, + FIELD_GET(OTX2_FLOWER_MASK_MPLS_TTL, + mask->mpls_lse[1]), 0); + NPC_WRITE_FLOW(NPC_MPLS3_LBTCBOS, mpls_lse, + FIELD_GET(OTX2_FLOWER_MASK_MPLS_NON_TTL, + pkt->mpls_lse[2]), 0, + FIELD_GET(OTX2_FLOWER_MASK_MPLS_NON_TTL, + mask->mpls_lse[2]), 0); + NPC_WRITE_FLOW(NPC_MPLS3_TTL, mpls_lse, + FIELD_GET(OTX2_FLOWER_MASK_MPLS_TTL, + pkt->mpls_lse[2]), 0, + FIELD_GET(OTX2_FLOWER_MASK_MPLS_TTL, + mask->mpls_lse[2]), 0); + NPC_WRITE_FLOW(NPC_MPLS4_LBTCBOS, mpls_lse, + FIELD_GET(OTX2_FLOWER_MASK_MPLS_NON_TTL, + pkt->mpls_lse[3]), 0, + FIELD_GET(OTX2_FLOWER_MASK_MPLS_NON_TTL, + mask->mpls_lse[3]), 0); + NPC_WRITE_FLOW(NPC_MPLS4_TTL, mpls_lse, + FIELD_GET(OTX2_FLOWER_MASK_MPLS_TTL, + pkt->mpls_lse[3]), 0, + FIELD_GET(OTX2_FLOWER_MASK_MPLS_TTL, + mask->mpls_lse[3]), 0); + NPC_WRITE_FLOW(NPC_IPFRAG_IPV6, next_header, pkt->next_header, 0, mask->next_header, 0); npc_update_ipv6_flow(rvu, entry, features, pkt, mask, output, intf); diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c b/drivers= /net/ethernet/marvell/octeontx2/nic/otx2_tc.c index fab9d85bfb37..8a5e3987a482 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c @@ -27,6 +27,8 @@ #define CN10K_TLX_BURST_MANTISSA GENMASK_ULL(43, 29) #define CN10K_TLX_BURST_EXPONENT GENMASK_ULL(47, 44) +#define OTX2_UNSUPP_LSE_DEPTH GENMASK(6, 4) + struct otx2_tc_flow_stats { u64 bytes; u64 pkts; @@ -519,6 +521,7 @@ static int otx2_tc_prepare_flow(struct otx2_nic *nic, s= truct otx2_tc_flow *node, BIT_ULL(FLOW_DISSECTOR_KEY_IPV6_ADDRS) | BIT_ULL(FLOW_DISSECTOR_KEY_PORTS) | BIT(FLOW_DISSECTOR_KEY_IPSEC) | + BIT_ULL(FLOW_DISSECTOR_KEY_MPLS) | BIT_ULL(FLOW_DISSECTOR_KEY_IP)))) { netdev_info(nic->netdev, "unsupported flow used key 0x%llx", dissector->used_keys); @@ -738,6 +741,61 @@ static int otx2_tc_prepare_flow(struct otx2_nic *nic, = struct otx2_tc_flow *node, } } + if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_MPLS)) { + struct flow_match_mpls match; + u8 bit; + + flow_rule_match_mpls(rule, &match); + + if (match.mask->used_lses & OTX2_UNSUPP_LSE_DEPTH) { + NL_SET_ERR_MSG_MOD(extack, + "unsupported LSE depth for MPLS match offload"); + return -EOPNOTSUPP; + } + + for_each_set_bit(bit, (unsigned long *)&match.mask->used_lses, + FLOW_DIS_MPLS_MAX) { + /* check if any of the fields LABEL,TC,BOS are set */ + if (*((u32 *)&match.mask->ls[bit]) & + OTX2_FLOWER_MASK_MPLS_NON_TTL) { + /* Hardware will capture 4 byte MPLS header into + * two fields NPC_MPLSX_LBTCBOS and NPC_MPLSX_TTL. + * Derive the associated NPC key based on header + * index and offset. + */ + + req->features |=3D BIT_ULL(NPC_MPLS1_LBTCBOS + + 2 * bit); + flow_spec->mpls_lse[bit] =3D + FIELD_PREP(OTX2_FLOWER_MASK_MPLS_LB, + match.key->ls[bit].mpls_label) | + FIELD_PREP(OTX2_FLOWER_MASK_MPLS_TC, + match.key->ls[bit].mpls_tc) | + FIELD_PREP(OTX2_FLOWER_MASK_MPLS_BOS, + match.key->ls[bit].mpls_bos); + + flow_mask->mpls_lse[bit] =3D + FIELD_PREP(OTX2_FLOWER_MASK_MPLS_LB, + match.mask->ls[bit].mpls_label) | + FIELD_PREP(OTX2_FLOWER_MASK_MPLS_TC, + match.mask->ls[bit].mpls_tc) | + FIELD_PREP(OTX2_FLOWER_MASK_MPLS_BOS, + match.mask->ls[bit].mpls_bos); + } + + if (match.mask->ls[bit].mpls_ttl) { + req->features |=3D BIT_ULL(NPC_MPLS1_TTL + + 2 * bit); + flow_spec->mpls_lse[bit] |=3D + FIELD_PREP(OTX2_FLOWER_MASK_MPLS_TTL, + match.key->ls[bit].mpls_ttl); + flow_mask->mpls_lse[bit] |=3D + FIELD_PREP(OTX2_FLOWER_MASK_MPLS_TTL, + match.mask->ls[bit].mpls_ttl); + } + } + } + return otx2_tc_parse_actions(nic, &rule->action, req, f, node); } -- 2.17.1