From patchwork Mon Oct 19 11:41:46 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Srujana Challa X-Patchwork-Id: 298829 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=unavailable 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 B81E6C43457 for ; Mon, 19 Oct 2020 11:42:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4E12622263 for ; Mon, 19 Oct 2020 11:42:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=marvell.com header.i=@marvell.com header.b="EVgilfpg" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726506AbgJSLmS (ORCPT ); Mon, 19 Oct 2020 07:42:18 -0400 Received: from mx0a-0016f401.pphosted.com ([67.231.148.174]:55310 "EHLO mx0b-0016f401.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726438AbgJSLmR (ORCPT ); Mon, 19 Oct 2020 07:42:17 -0400 Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 09JBaBBV007982; Mon, 19 Oct 2020 04:42:13 -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=/KrPZecW+udMeqVyUUIFecliVOHfMhi5P1SlnviKl8U=; b=EVgilfpgT+S/hIyAHVFQBYlt/NiL40/yVFLIWj9Ccaf+0Ts3+H54cnYHw9yzSiAtgrt+ Kj30UbTpoJZH92tMwVk19yEaSR9hwE52e7IivbrXSb3epgM0sGum3kXFoXEqTGaF+g8x Vp5z5P54MuPv0SdBN3txUqTGVKM0xW1PMdKwo6RtN1Cdm4AaxlNbW5RlRnkL7N3lzUyR ejzOZgOy9lDfccWnbLAlwjPuYdjONU7GAlh7iC9YdU+LRaoOBynVP8aamUwDVSadf2B3 p+CHgEbF1EqkgsrsasPiYpUpSmbTdUXEIp9VKbwqjR/+AwBRYlX0DNUAzulkqexTsVy5 gg== Received: from sc-exch02.marvell.com ([199.233.58.182]) by mx0a-0016f401.pphosted.com with ESMTP id 347wyq52ef-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Mon, 19 Oct 2020 04:42:13 -0700 Received: from DC5-EXCH01.marvell.com (10.69.176.38) by SC-EXCH02.marvell.com (10.93.176.82) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 19 Oct 2020 04:42:12 -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; Mon, 19 Oct 2020 04:42:12 -0700 Received: from hyd1schalla-dt.marvell.com (hyd1schalla-dt.marvell.com [10.29.8.39]) by maili.marvell.com (Postfix) with ESMTP id 04E473F703F; Mon, 19 Oct 2020 04:42:08 -0700 (PDT) From: Srujana Challa To: , CC: , , , , , , , , Srujana Challa Subject: [PATCH v8, net-next, 01/12] octeontx2-pf: move lmt flush to include/linux/soc Date: Mon, 19 Oct 2020 17:11:46 +0530 Message-ID: <20201019114157.4347-2-schalla@marvell.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201019114157.4347-1-schalla@marvell.com> References: <20201019114157.4347-1-schalla@marvell.com> MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235, 18.0.687 definitions=2020-10-19_05:2020-10-16,2020-10-19 signatures=0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On OcteonTX2 platform CPT instruction enqueue and NIX packet send are only possible via LMTST operations which uses LDEOR instruction. This patch moves lmt flush function from OcteonTX2 nic driver to include/linux/soc since it will be used by OcteonTX2 CPT and NIC driver for LMTST. Signed-off-by: Suheil Chandran Signed-off-by: Srujana Challa --- MAINTAINERS | 2 ++ .../marvell/octeontx2/nic/otx2_common.h | 13 +-------- include/linux/soc/marvell/octeontx2/asm.h | 29 +++++++++++++++++++ 3 files changed, 32 insertions(+), 12 deletions(-) create mode 100644 include/linux/soc/marvell/octeontx2/asm.h diff --git a/MAINTAINERS b/MAINTAINERS index 0f59b0412953..f611ae87756e 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -10481,6 +10481,7 @@ M: Srujana Challa L: linux-crypto@vger.kernel.org S: Maintained F: drivers/crypto/marvell/ +F: include/linux/soc/marvell/octeontx2/ MARVELL GIGABIT ETHERNET DRIVERS (skge/sky2) M: Mirko Lindner @@ -10553,6 +10554,7 @@ M: hariprasad L: netdev@vger.kernel.org S: Supported F: drivers/net/ethernet/marvell/octeontx2/nic/ +F: include/linux/soc/marvell/octeontx2/ MARVELL OCTEONTX2 RVU ADMIN FUNCTION DRIVER M: Sunil Goutham diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h index d6253f2a414d..2e8288445dcb 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h @@ -16,6 +16,7 @@ #include #include #include +#include #include #include "otx2_reg.h" @@ -421,21 +422,9 @@ static inline u64 otx2_atomic64_add(u64 incr, u64 *ptr) return result; } -static inline u64 otx2_lmt_flush(uint64_t addr) -{ - u64 result = 0; - - __asm__ volatile(".cpu generic+lse\n" - "ldeor xzr,%x[rf],[%[rs]]" - : [rf]"=r"(result) - : [rs]"r"(addr)); - return result; -} - #else #define otx2_write128(lo, hi, addr) #define otx2_atomic64_add(incr, ptr) ({ *ptr += incr; }) -#define otx2_lmt_flush(addr) ({ 0; }) #endif /* Alloc pointer from pool/aura */ diff --git a/include/linux/soc/marvell/octeontx2/asm.h b/include/linux/soc/marvell/octeontx2/asm.h new file mode 100644 index 000000000000..ae2279fe830a --- /dev/null +++ b/include/linux/soc/marvell/octeontx2/asm.h @@ -0,0 +1,29 @@ +/* SPDX-License-Identifier: GPL-2.0-only + * Copyright (C) 2020 Marvell. + */ + +#ifndef __SOC_OTX2_ASM_H +#define __SOC_OTX2_ASM_H + +#if defined(CONFIG_ARM64) +/* + * otx2_lmt_flush is used for LMT store operation. + * On octeontx2 platform CPT instruction enqueue and + * NIX packet send are only possible via LMTST + * operations and it uses LDEOR instruction targeting + * the coprocessor address. + */ +#define otx2_lmt_flush(ioaddr) \ +({ \ + u64 result = 0; \ + __asm__ volatile(".cpu generic+lse\n" \ + "ldeor xzr, %x[rf], [%[rs]]" \ + : [rf]"=r" (result) \ + : [rs]"r" (ioaddr)); \ + (result); \ +}) +#else +#define otx2_lmt_flush(ioaddr) ({ 0; }) +#endif + +#endif /* __SOC_OTX2_ASM_H */