From patchwork Mon Nov 2 06:11:21 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Naveen Mamindlapalli X-Patchwork-Id: 11873037 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 X-Spam-Level: X-Spam-Status: No, score=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 010E6C4742C for ; Mon, 2 Nov 2020 06:14:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A1BEC22265 for ; Mon, 2 Nov 2020 06:14:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=marvell.com header.i=@marvell.com header.b="f8xPmtMl" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728168AbgKBGOX (ORCPT ); Mon, 2 Nov 2020 01:14:23 -0500 Received: from mx0b-0016f401.pphosted.com ([67.231.156.173]:52636 "EHLO mx0b-0016f401.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725208AbgKBGOV (ORCPT ); Mon, 2 Nov 2020 01:14:21 -0500 Received: from pps.filterd (m0045851.ppops.net [127.0.0.1]) by mx0b-0016f401.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 0A26EHgJ008824; Sun, 1 Nov 2020 22:14:17 -0800 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-type; s=pfpt0220; bh=6goQ6UwuFQv0CmDUoExbCLhk11w6qpNrlRh2AoTtRMQ=; b=f8xPmtMlOdal0jCogShMvJtm+u8wYBNuqb1WD6EFwlFSc196DIi1ZnsvCm6SYcZysSwY 0sbChndY9trf6e5oYvkO5F09LCGjPBM+NzEWgQKN1FqoOHgJeH/9z+S7Tq5/ZUVGw9gP jwzFtY/1IZ/29Jm+u1wmWKRD+E67IQSOkQGhxFjnQ8tJBqSIVfC2DQrbHAbsv+9xUW+2 YOyqjtVzuz/Dr7bjBTpCAy9dND/d1mjfemPBQp7hNedNzHOMDiNlBA+F+C91tPdb/dYw QXtGDVIjsOwwL07fhkgHCEq4GUguUQ6eRyakIRtTD1ii+/vqtCoiEMfvbeGIIF3jFnLz ZQ== Received: from sc-exch03.marvell.com ([199.233.58.183]) by mx0b-0016f401.pphosted.com with ESMTP id 34h7enp54u-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Sun, 01 Nov 2020 22:14:17 -0800 Received: from DC5-EXCH02.marvell.com (10.69.176.39) by SC-EXCH03.marvell.com (10.93.176.83) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Sun, 1 Nov 2020 22:14:15 -0800 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Sun, 1 Nov 2020 22:14:16 -0800 Received: from hyd1583.caveonetworks.com (unknown [10.29.37.44]) by maili.marvell.com (Postfix) with ESMTP id 3265B3F7041; Sun, 1 Nov 2020 22:14:11 -0800 (PST) From: Naveen Mamindlapalli To: , CC: , , , , , , , , Naveen Mamindlapalli , Vamsi Attunuru Subject: [PATCH net-next 12/13] octeontx2-af: Add new mbox messages to retrieve MCAM entries Date: Mon, 2 Nov 2020 11:41:21 +0530 Message-ID: <20201102061122.8915-13-naveenm@marvell.com> X-Mailer: git-send-email 2.16.5 In-Reply-To: <20201102061122.8915-1-naveenm@marvell.com> References: <20201102061122.8915-1-naveenm@marvell.com> MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.312,18.0.737 definitions=2020-11-02_03:2020-10-30,2020-11-02 signatures=0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org This patch introduces new mailbox mesages to retrieve a given MCAM entry or base flow steering rule of a VF installed by its parent PF. This helps while updating the existing MCAM rules with out re-framing the whole mailbox request again. The INSTALL FLOW mailbox consumer can read-modify-write the existing entry. Similarly while installing new flow rules for a VF, the base flow steering rule match creteria is copied to the new flow rule and the deltas are appended to the new rule. Signed-off-by: Naveen Mamindlapalli Co-developed-by: Vamsi Attunuru Signed-off-by: Vamsi Attunuru Signed-off-by: Sunil Goutham --- drivers/net/ethernet/marvell/octeontx2/af/mbox.h | 22 +++++++ .../net/ethernet/marvell/octeontx2/af/rvu_npc.c | 70 ++++++++++++++++++++++ 2 files changed, 92 insertions(+) diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h index fd204e1a7b8a..cc8c463b7bf3 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h +++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h @@ -192,6 +192,11 @@ M(NPC_INSTALL_FLOW, 0x600d, npc_install_flow, \ npc_install_flow_req, npc_install_flow_rsp) \ M(NPC_DELETE_FLOW, 0x600e, npc_delete_flow, \ npc_delete_flow_req, msg_rsp) \ +M(NPC_MCAM_READ_ENTRY, 0x600f, npc_mcam_read_entry, \ + npc_mcam_read_entry_req, \ + npc_mcam_read_entry_rsp) \ +M(NPC_MCAM_READ_BASE_RULE, 0x6011, npc_read_base_steer_rule, \ + msg_req, npc_mcam_read_base_rule_rsp) \ /* NIX mbox IDs (range 0x8000 - 0xFFFF) */ \ M(NIX_LF_ALLOC, 0x8000, nix_lf_alloc, \ nix_lf_alloc_req, nix_lf_alloc_rsp) \ @@ -1028,6 +1033,23 @@ struct npc_delete_flow_req { u8 all; /* PF + VFs */ }; +struct npc_mcam_read_entry_req { + struct mbox_msghdr hdr; + u16 entry; /* MCAM entry to read */ +}; + +struct npc_mcam_read_entry_rsp { + struct mbox_msghdr hdr; + struct mcam_entry entry_data; + u8 intf; + u8 enable; +}; + +struct npc_mcam_read_base_rule_rsp { + struct mbox_msghdr hdr; + struct mcam_entry entry; +}; + enum ptp_op { PTP_OP_ADJFINE = 0, PTP_OP_GET_CLOCK = 1, diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c index c87d06ee11c3..52e23e68d917 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c @@ -2194,6 +2194,30 @@ int rvu_mbox_handler_npc_mcam_free_entry(struct rvu *rvu, return rc; } +int rvu_mbox_handler_npc_mcam_read_entry(struct rvu *rvu, + struct npc_mcam_read_entry_req *req, + struct npc_mcam_read_entry_rsp *rsp) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + u16 pcifunc = req->hdr.pcifunc; + int blkaddr, rc; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return NPC_MCAM_INVALID_REQ; + + mutex_lock(&mcam->lock); + rc = npc_mcam_verify_entry(mcam, pcifunc, req->entry); + if (!rc) { + npc_read_mcam_entry(rvu, mcam, blkaddr, req->entry, + &rsp->entry_data, + &rsp->intf, &rsp->enable); + } + + mutex_unlock(&mcam->lock); + return rc; +} + int rvu_mbox_handler_npc_mcam_write_entry(struct rvu *rvu, struct npc_mcam_write_entry_req *req, struct msg_rsp *rsp) @@ -2754,3 +2778,49 @@ bool rvu_npc_write_default_rule(struct rvu *rvu, int blkaddr, int nixlf, return enable; } + +int rvu_mbox_handler_npc_read_base_steer_rule(struct rvu *rvu, + struct msg_req *req, + struct npc_mcam_read_base_rule_rsp *rsp) +{ + struct npc_mcam *mcam = &rvu->hw->mcam; + int index, blkaddr, nixlf, rc = 0; + u16 pcifunc = req->hdr.pcifunc; + struct rvu_pfvf *pfvf; + u8 intf, enable; + + blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NPC, 0); + if (blkaddr < 0) + return NPC_MCAM_INVALID_REQ; + + /* Return the channel number in case of PF */ + if (!(pcifunc & RVU_PFVF_FUNC_MASK)) { + pfvf = rvu_get_pfvf(rvu, pcifunc); + rsp->entry.kw[0] = pfvf->rx_chan_base; + rsp->entry.kw_mask[0] = 0xFFFULL; + goto out; + } + + /* Find the pkt steering rule installed by PF to this VF */ + mutex_lock(&mcam->lock); + for (index = 0; index < mcam->bmap_entries; index++) { + if (mcam->entry2target_pffunc[index] == pcifunc) + goto read_entry; + } + + rc = nix_get_nixlf(rvu, pcifunc, &nixlf, NULL); + if (rc < 0) { + mutex_unlock(&mcam->lock); + goto out; + } + /* Read the default ucast entry if there is no pkt steering rule */ + index = npc_get_nixlf_mcam_index(mcam, pcifunc, nixlf, + NIXLF_UCAST_ENTRY); +read_entry: + /* Read the mcam entry */ + npc_read_mcam_entry(rvu, mcam, blkaddr, index, &rsp->entry, &intf, + &enable); + mutex_unlock(&mcam->lock); +out: + return rc; +}