From patchwork Thu Oct 17 08:42:44 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Linu Cherian X-Patchwork-Id: 13839629 X-Patchwork-Delegate: kuba@kernel.org Received: from mx0b-0016f401.pphosted.com (mx0b-0016f401.pphosted.com [67.231.156.173]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 931E11D6191; Thu, 17 Oct 2024 08:43:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=67.231.156.173 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729154606; cv=none; b=VM6989OpnXzJ5S8Dnt54c+EUitV3M2BzK5UfwNxI5WKYnG+jgdQo9UNDYApZ1lQye6fpK7Zjn9mFTAik5Iy+nFzWv80Z65JE0/ic/cttlRuuK1Og8cIBQcRD5HS9oJ7ee/3LiZWQdfjcAfwj/AyXEiC8fLbLAd8J1IGv9/qH0oI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729154606; c=relaxed/simple; bh=2OsSJ9LAAFvDtnkXOIDUpvSUKmdKq1+WHCr0KxZLn2w=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=E2Dv8hTA7ppQGM+/xZ4kavY4MnXou6+Qi71BAHqEWtXDErPV1MGRybYTQU0ICZqgkwXtrh93rugHrITjAMT+TzELlEzQt9Zych5/dDCYAFFvmOwN0j0IVwl0HYbn5SHhrtT1p63jZdeo+CwVzB5q2Jeri62dG/Cpm8gM0Inufq8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=marvell.com; spf=pass smtp.mailfrom=marvell.com; dkim=pass (2048-bit key) header.d=marvell.com header.i=@marvell.com header.b=ZhE2YfRk; arc=none smtp.client-ip=67.231.156.173 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=marvell.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=marvell.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=marvell.com header.i=@marvell.com header.b="ZhE2YfRk" Received: from pps.filterd (m0045851.ppops.net [127.0.0.1]) by mx0b-0016f401.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 49GKOPai013083; Thu, 17 Oct 2024 01:43:03 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=pfpt0220; bh=N +cWXGdDGjfssp7KqM2ge5CH2qMNuaHWniXG50U9EVs=; b=ZhE2YfRkAMnr66DyP Hcq4PriDUJnlGJVkBUXGD4T650/Bb6l3pnVrIrI6zXxXkewT+C5frGDNEC07Y7BX HYOQFPmvmKXCmSbmtfX0M0/Yk9/8kzL6RVEd22KUx17aLEzOfwVnumjxOnQ6fe4d bPTtHMOvuTY1EDOkvfhVMPkailO4jxaFoZstW4ccU9jgZXLYHGHM3oBNQNrLu28n 9ToYZzJgeCCcRBjC4OuDk42E2NmRVfrANJJDHpVL5LJ77GiJOjvIKSI50Sszwfni g1dUnyAOjx56EYDDFha5gAOZr/6Nfs6YciZ1BQke8/EQLa589ql3ixczky0L/5jf eXWxg== Received: from dc5-exch05.marvell.com ([199.233.59.128]) by mx0b-0016f401.pphosted.com (PPS) with ESMTPS id 42aanf2p4f-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 17 Oct 2024 01:43:03 -0700 (PDT) Received: from DC5-EXCH05.marvell.com (10.69.176.209) by DC5-EXCH05.marvell.com (10.69.176.209) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.4; Thu, 17 Oct 2024 01:43:01 -0700 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH05.marvell.com (10.69.176.209) with Microsoft SMTP Server id 15.2.1544.4 via Frontend Transport; Thu, 17 Oct 2024 01:43:01 -0700 Received: from virtx40.. (unknown [10.28.34.196]) by maili.marvell.com (Postfix) with ESMTP id 459223F7040; Thu, 17 Oct 2024 01:42:57 -0700 (PDT) From: Linu Cherian To: , , , CC: , , , , , , , Linu Cherian Subject: [PATCH v3 net-next 2/2] octeontx2-af: Knobs for NPC default rule counters Date: Thu, 17 Oct 2024 14:12:44 +0530 Message-ID: <20241017084244.1654907-3-lcherian@marvell.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241017084244.1654907-1-lcherian@marvell.com> References: <20241017084244.1654907-1-lcherian@marvell.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Proofpoint-ORIG-GUID: xT1B7pYfooinX0eqTBrdwuK2EcveZ38_ X-Proofpoint-GUID: xT1B7pYfooinX0eqTBrdwuK2EcveZ38_ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.60.29 definitions=2024-09-06_09,2024-09-06_01,2024-09-02_01 X-Patchwork-Delegate: kuba@kernel.org Add devlink knobs to enable/disable counters on NPC default rule entries. Sample command to enable default rule counters: devlink dev param set name npc_def_rule_cntr value true cmode runtime Sample command to read the counter: cat /sys/kernel/debug/cn10k/npc/mcam_rules Signed-off-by: Linu Cherian --- Changelog from v2: Moved out the refactoring into separate patch. .../net/ethernet/marvell/octeontx2/af/rvu.h | 2 + .../marvell/octeontx2/af/rvu_devlink.c | 32 +++++++++++++ .../ethernet/marvell/octeontx2/af/rvu_npc.c | 45 +++++++++++++++++++ 3 files changed, 79 insertions(+) diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h index d92a5f47a476..e8c6a6fe9bd5 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h @@ -525,6 +525,7 @@ struct rvu { struct mutex alias_lock; /* Serialize bar2 alias access */ int vfs; /* Number of VFs attached to RVU */ u16 vf_devid; /* VF devices id */ + bool def_rule_cntr_en; int nix_blkaddr[MAX_NIX_BLKS]; /* Mbox */ @@ -989,6 +990,7 @@ void npc_set_mcam_action(struct rvu *rvu, struct npc_mcam *mcam, void npc_read_mcam_entry(struct rvu *rvu, struct npc_mcam *mcam, int blkaddr, u16 src, struct mcam_entry *entry, u8 *intf, u8 *ena); +int npc_config_cntr_default_entries(struct rvu *rvu, bool enable); bool is_cgx_config_permitted(struct rvu *rvu, u16 pcifunc); bool is_mac_feature_supported(struct rvu *rvu, int pf, int feature); u32 rvu_cgx_get_fifolen(struct rvu *rvu); diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c index 7498ab429963..9c26e19a860b 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c @@ -1238,6 +1238,7 @@ enum rvu_af_dl_param_id { RVU_AF_DEVLINK_PARAM_ID_DWRR_MTU, RVU_AF_DEVLINK_PARAM_ID_NPC_MCAM_ZONE_PERCENT, RVU_AF_DEVLINK_PARAM_ID_NPC_EXACT_FEATURE_DISABLE, + RVU_AF_DEVLINK_PARAM_ID_NPC_DEF_RULE_CNTR_ENABLE, RVU_AF_DEVLINK_PARAM_ID_NIX_MAXLF, }; @@ -1358,6 +1359,32 @@ static int rvu_af_dl_npc_mcam_high_zone_percent_validate(struct devlink *devlink return 0; } +static int rvu_af_dl_npc_def_rule_cntr_get(struct devlink *devlink, u32 id, + struct devlink_param_gset_ctx *ctx) +{ + struct rvu_devlink *rvu_dl = devlink_priv(devlink); + struct rvu *rvu = rvu_dl->rvu; + + ctx->val.vbool = rvu->def_rule_cntr_en; + + return 0; +} + +static int rvu_af_dl_npc_def_rule_cntr_set(struct devlink *devlink, u32 id, + struct devlink_param_gset_ctx *ctx, + struct netlink_ext_ack *extack) +{ + struct rvu_devlink *rvu_dl = devlink_priv(devlink); + struct rvu *rvu = rvu_dl->rvu; + int err; + + err = npc_config_cntr_default_entries(rvu, ctx->val.vbool); + if (!err) + rvu->def_rule_cntr_en = ctx->val.vbool; + + return err; +} + static int rvu_af_dl_nix_maxlf_get(struct devlink *devlink, u32 id, struct devlink_param_gset_ctx *ctx) { @@ -1444,6 +1471,11 @@ static const struct devlink_param rvu_af_dl_params[] = { rvu_af_dl_npc_mcam_high_zone_percent_get, rvu_af_dl_npc_mcam_high_zone_percent_set, rvu_af_dl_npc_mcam_high_zone_percent_validate), + DEVLINK_PARAM_DRIVER(RVU_AF_DEVLINK_PARAM_ID_NPC_DEF_RULE_CNTR_ENABLE, + "npc_def_rule_cntr", DEVLINK_PARAM_TYPE_BOOL, + BIT(DEVLINK_PARAM_CMODE_RUNTIME), + rvu_af_dl_npc_def_rule_cntr_get, + rvu_af_dl_npc_def_rule_cntr_set, NULL), DEVLINK_PARAM_DRIVER(RVU_AF_DEVLINK_PARAM_ID_NIX_MAXLF, "nix_maxlf", DEVLINK_PARAM_TYPE_U16, BIT(DEVLINK_PARAM_CMODE_RUNTIME), diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c index c4ef1e83cc46..9e39c3149a4f 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c @@ -2691,6 +2691,51 @@ void npc_mcam_rsrcs_reserve(struct rvu *rvu, int blkaddr, int entry_idx) npc_mcam_set_bit(mcam, entry_idx); } +int npc_config_cntr_default_entries(struct rvu *rvu, bool enable) +{ + struct npc_install_flow_rsp rsp = { 0 }; + struct npc_mcam *mcam = &rvu->hw->mcam; + struct rvu_npc_mcam_rule *rule; + int blkaddr; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return -EINVAL; + + mutex_lock(&mcam->lock); + list_for_each_entry(rule, &mcam->mcam_rules, list) { + if (!is_mcam_entry_enabled(rvu, mcam, blkaddr, rule->entry)) + continue; + if (!rule->default_rule) + continue; + if (enable && !rule->has_cntr) { /* Alloc and map new counter */ + __rvu_mcam_add_counter_to_rule(rvu, rule->owner, + rule, &rsp); + if (rsp.counter < 0) { + dev_err(rvu->dev, "%s: Err to allocate cntr for default rule (err=%d)\n", + __func__, rsp.counter); + break; + } + npc_map_mcam_entry_and_cntr(rvu, mcam, blkaddr, + rule->entry, rsp.counter); + } + + if (enable && rule->has_cntr) /* Reset counter before use */ { + rvu_write64(rvu, blkaddr, + NPC_AF_MATCH_STATX(rule->cntr), 0x0); + continue; + } + + if (!enable && rule->has_cntr) /* Free and unmap counter */ { + __rvu_mcam_remove_counter_from_rule(rvu, rule->owner, + rule); + } + } + mutex_unlock(&mcam->lock); + + return 0; +} + int rvu_mbox_handler_npc_mcam_alloc_entry(struct rvu *rvu, struct npc_mcam_alloc_entry_req *req, struct npc_mcam_alloc_entry_rsp *rsp)