From patchwork Fri Jul 8 04:41:43 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ratheesh Kannoth X-Patchwork-Id: 12910550 X-Patchwork-Delegate: kuba@kernel.org 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 4EDEDC433EF for ; Fri, 8 Jul 2022 04:42:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237251AbiGHEmc (ORCPT ); Fri, 8 Jul 2022 00:42:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43058 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237199AbiGHEmV (ORCPT ); Fri, 8 Jul 2022 00:42:21 -0400 Received: from mx0b-0016f401.pphosted.com (mx0a-0016f401.pphosted.com [67.231.148.174]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8D2D561D76; Thu, 7 Jul 2022 21:42:19 -0700 (PDT) Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 2681tIHL031273; Thu, 7 Jul 2022 21:42:14 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=pfpt0220; bh=ylH+XGv/uILbf/9+uXxFjt7npgeE1+6CuR46gAD+KK4=; b=LNPhSZAjf8WwwQKRbv0zfqPlYMFSO5LiBFHI8p/7xCjp1BCvzCvHDhNwcu7bllg4HcP7 ftxhm2Qsknql7tnZtQoGGDbXSjb9R7mxQZCrkZriAwgdJXlPm6cUOR4adhxssXyH1d3C Xd5hQXd8maK/VhGrJcPVSQCNIcUU3P7DC8uQq/BFp+NsgPFAmTwnHQnD24Ag0ed3FJNb BzWBvMJDNUab9/+xxhiLkV+WUibWUT1UrMFXFIidUwABoVdmS34fvBIKFqlHwq3DBOvE /cYZ5TNfrrHv26z3NxnuJFIchtJpzNGnk7IOa3YFBYsTAZWegJWdHBfqDNrBRnFtOAZk ew== Received: from dc5-exch01.marvell.com ([199.233.59.181]) by mx0a-0016f401.pphosted.com (PPS) with ESMTPS id 3h6bay8ej7-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Thu, 07 Jul 2022 21:42:14 -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 15.0.1497.2; Thu, 7 Jul 2022 21:42:13 -0700 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH01.marvell.com (10.69.176.38) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 7 Jul 2022 21:42:13 -0700 Received: from IPBU-BLR-SERVER1.marvell.com (IPBU-BLR-SERVER1.marvell.com [10.28.8.41]) by maili.marvell.com (Postfix) with ESMTP id 080873F7074; Thu, 7 Jul 2022 21:42:09 -0700 (PDT) From: Ratheesh Kannoth To: , CC: , , , , , Ratheesh Kannoth Subject: [net-next PATCH v5 04/12] octeontx2-af: devlink configuration support Date: Fri, 8 Jul 2022 10:11:43 +0530 Message-ID: <20220708044151.2972645-5-rkannoth@marvell.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220708044151.2972645-1-rkannoth@marvell.com> References: <20220708044151.2972645-1-rkannoth@marvell.com> MIME-Version: 1.0 X-Proofpoint-GUID: 51oi_q2y_0OV6n5G8AzJ7fNk3vJkZhsR X-Proofpoint-ORIG-GUID: 51oi_q2y_0OV6n5G8AzJ7fNk3vJkZhsR X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.883,Hydra:6.0.517,FMLib:17.11.122.1 definitions=2022-07-08_04,2022-06-28_01,2022-06-22_01 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org CN10KB silicon supports Exact match feature. This feature can be disabled through devlink configuration. Devlink command fails if DMAC filter rules are already present. Once disabled, legacy RPM based DMAC filters will be configured. Signed-off-by: Ratheesh Kannoth --- .../marvell/octeontx2/af/rvu_devlink.c | 71 ++++++++++++++++++- .../marvell/octeontx2/af/rvu_npc_hash.c | 29 ++++++++ .../marvell/octeontx2/af/rvu_npc_hash.h | 3 + 3 files changed, 101 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c index d0ab8f233a02..88dee589cb21 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_devlink.c @@ -10,6 +10,7 @@ #include "rvu.h" #include "rvu_reg.h" #include "rvu_struct.h" +#include "rvu_npc_hash.h" #define DRV_NAME "octeontx2-af" @@ -1436,14 +1437,75 @@ static int rvu_af_dl_dwrr_mtu_get(struct devlink *devlink, u32 id, enum rvu_af_dl_param_id { RVU_AF_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX, RVU_AF_DEVLINK_PARAM_ID_DWRR_MTU, + RVU_AF_DEVLINK_PARAM_ID_NPC_EXACT_FEATURE_DISABLE, }; +static int rvu_af_npc_exact_feature_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; + bool enabled; + + enabled = rvu_npc_exact_has_match_table(rvu); + + snprintf(ctx->val.vstr, sizeof(ctx->val.vstr), "%s", + enabled ? "enabled" : "disabled"); + + return 0; +} + +static int rvu_af_npc_exact_feature_disable(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; + + rvu_npc_exact_disable_feature(rvu); + + return 0; +} + +static int rvu_af_npc_exact_feature_validate(struct devlink *devlink, u32 id, + union devlink_param_value val, + struct netlink_ext_ack *extack) +{ + struct rvu_devlink *rvu_dl = devlink_priv(devlink); + struct rvu *rvu = rvu_dl->rvu; + u64 enable; + + if (kstrtoull(val.vstr, 10, &enable)) { + NL_SET_ERR_MSG_MOD(extack, + "Only 1 value is supported"); + return -EINVAL; + } + + if (enable != 1) { + NL_SET_ERR_MSG_MOD(extack, + "Only disabling exact match feature is supported"); + return -EINVAL; + } + + if (rvu_npc_exact_can_disable_feature(rvu)) + return 0; + + NL_SET_ERR_MSG_MOD(extack, + "Can't disable exact match feature; Please try before any configuration"); + return -EFAULT; +} + static const struct devlink_param rvu_af_dl_params[] = { DEVLINK_PARAM_DRIVER(RVU_AF_DEVLINK_PARAM_ID_DWRR_MTU, "dwrr_mtu", DEVLINK_PARAM_TYPE_U32, BIT(DEVLINK_PARAM_CMODE_RUNTIME), rvu_af_dl_dwrr_mtu_get, rvu_af_dl_dwrr_mtu_set, rvu_af_dl_dwrr_mtu_validate), + DEVLINK_PARAM_DRIVER(RVU_AF_DEVLINK_PARAM_ID_NPC_EXACT_FEATURE_DISABLE, + "npc_exact_feature_disable", DEVLINK_PARAM_TYPE_STRING, + BIT(DEVLINK_PARAM_CMODE_RUNTIME), + rvu_af_npc_exact_feature_get, + rvu_af_npc_exact_feature_disable, + rvu_af_npc_exact_feature_validate), }; /* Devlink switch mode */ @@ -1501,6 +1563,7 @@ int rvu_register_dl(struct rvu *rvu) { struct rvu_devlink *rvu_dl; struct devlink *dl; + size_t size; int err; dl = devlink_alloc(&rvu_devlink_ops, sizeof(struct rvu_devlink), @@ -1522,8 +1585,12 @@ int rvu_register_dl(struct rvu *rvu) goto err_dl_health; } - err = devlink_params_register(dl, rvu_af_dl_params, - ARRAY_SIZE(rvu_af_dl_params)); + /* Register exact match devlink only for CN10K-B */ + size = ARRAY_SIZE(rvu_af_dl_params); + if (!rvu_npc_exact_has_match_table(rvu)) + size -= 1; + + err = devlink_params_register(dl, rvu_af_dl_params, size); if (err) { dev_err(rvu->dev, "devlink params register failed with error %d", err); diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_hash.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_hash.c index 273f4b648c73..fc18f543ca25 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_hash.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_hash.c @@ -1154,6 +1154,35 @@ static int __maybe_unused rvu_npc_exact_update_table_entry(struct rvu *rvu, u8 c return 0; } +/** + * rvu_npc_exact_can_disable_feature - Check if feature can be disabled. + * @rvu: resource virtualization unit. + * Return: True if exact match feature is supported. + */ +bool rvu_npc_exact_can_disable_feature(struct rvu *rvu) +{ + struct npc_exact_table *table = rvu->hw->table; + bool empty; + + if (!rvu->hw->cap.npc_exact_match_enabled) + return false; + + mutex_lock(&table->lock); + empty = list_empty(&table->lhead_gbl); + mutex_unlock(&table->lock); + + return empty; +} + +/** + * rvu_npc_exact_disable_feature - Disable feature. + * @rvu: resource virtualization unit. + */ +void rvu_npc_exact_disable_feature(struct rvu *rvu) +{ + rvu->hw->cap.npc_exact_match_enabled = false; +} + /** * rvu_npc_exact_init - initialize exact match table * @rvu: resource virtualization unit. diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_hash.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_hash.h index f2346aa79ce2..7adb5c5c5082 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_hash.h +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_hash.h @@ -185,4 +185,7 @@ int rvu_npc_exact_del_table_entry_by_id(struct rvu *rvu, u32 seq_id); u32 rvu_npc_exact_get_max_entries(struct rvu *rvu); int rvu_npc_exact_init(struct rvu *rvu); +bool rvu_npc_exact_can_disable_feature(struct rvu *rvu); +void rvu_npc_exact_disable_feature(struct rvu *rvu); + #endif /* RVU_NPC_HASH_H */