From patchwork Mon Oct 12 10:57:07 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Srujana Challa X-Patchwork-Id: 270076 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, 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 E3C71C43467 for ; Mon, 12 Oct 2020 10:58:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 953DD208FE for ; Mon, 12 Oct 2020 10:58:34 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=marvell.com header.i=@marvell.com header.b="ZUBJc/cL" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729635AbgJLK6b (ORCPT ); Mon, 12 Oct 2020 06:58:31 -0400 Received: from mx0b-0016f401.pphosted.com ([67.231.156.173]:59686 "EHLO mx0b-0016f401.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728031AbgJLK63 (ORCPT ); Mon, 12 Oct 2020 06:58:29 -0400 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 09CAtaKb006332; Mon, 12 Oct 2020 03:58:21 -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=t4IANljFLoe/ePhqu9H1R9p+MF5p+4DXmOLV87Dkp6A=; b=ZUBJc/cLj5KHVTj6qbmW3lUrBv07GiT0ul9GzaudCn4n8tTH04GLayM+At1BNe95Xiyp 3IKRStY0Q/2kCtWre36j/DrBEDavyF9iMk58VWJgflq5fbzWlp50VKh8PjMCz82K2+0h I6IrnDmlR3Cd8nPoqxp4cmiV/gFQ2sjU5J2Cih/j48ZANUFEdoGaK9Fb/JgK6TZGaomf KDYgQ5ooddjmz8BtaoIUixca5PM9UksgDvrkusynUacFPE/p3oqD/ns0ssLPuETLPPDQ xCoXdku6+2h8ElVPGOF8cj+uy839QdCWE4NFmEIx0kJt/mWMr6JpV3mEqoDFiaveCPya tw== Received: from sc-exch03.marvell.com ([199.233.58.183]) by mx0b-0016f401.pphosted.com with ESMTP id 343cfj5cvm-2 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Mon, 12 Oct 2020 03:58:21 -0700 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; Mon, 12 Oct 2020 03:58:19 -0700 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; Mon, 12 Oct 2020 03:58:19 -0700 Received: from hyd1schalla-dt.marvell.com (hyd1schalla-dt.marvell.com [10.29.8.39]) by maili.marvell.com (Postfix) with ESMTP id CBECC3F7043; Mon, 12 Oct 2020 03:58:15 -0700 (PDT) From: Srujana Challa To: , CC: , , , , , , , , Srujana Challa Subject: [PATCH v7, net-next, 01/13] octeontx2-pf: move lmt flush to include/linux/soc Date: Mon, 12 Oct 2020 16:27:07 +0530 Message-ID: <20201012105719.12492-2-schalla@marvell.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201012105719.12492-1-schalla@marvell.com> References: <20201012105719.12492-1-schalla@marvell.com> MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235, 18.0.687 definitions=2020-10-12_08:2020-10-12,2020-10-12 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 c80f87d7258c..ee903a39e2e9 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -10441,6 +10441,7 @@ 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 @@ -10513,6 +10514,7 @@ 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 */