From patchwork Fri Apr 7 12:23:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sai Krishna Gajula X-Patchwork-Id: 13204720 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 2D46DC76196 for ; Fri, 7 Apr 2023 12:24:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240727AbjDGMYP (ORCPT ); Fri, 7 Apr 2023 08:24:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45926 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231667AbjDGMYL (ORCPT ); Fri, 7 Apr 2023 08:24:11 -0400 Received: from mx0b-0016f401.pphosted.com (mx0a-0016f401.pphosted.com [67.231.148.174]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6F0C6976F; Fri, 7 Apr 2023 05:24:10 -0700 (PDT) Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 337AwmMZ000622; Fri, 7 Apr 2023 05:23:59 -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=aJ4BaAT3AGcAdjDo2xWVNbwi49MYlxqi2NK5V4zd0ms=; b=gcnFh8BRzh9UtQjT4OfHQnbtrc0gjmvjZDCQZNAuJ0/9Qddpmrl6Ohrwz8BlMqQ4r1So rsvb2V9JdsEOChu9cKCqwM+g3o94i1RrSfFECyLyoUl7hF8CYLUlZJMhfXduCpqc7JS6 wItHyiv1z5hF1tXU5SBI8lIowqGL99HXUdM1yKQKOW+EVU7yxEmNjHE9cB0FMaUI3PhU Pf11+A4o8Y5biM/1SkvsM2Tt482mDoACOcziKdrSI0Q5cNYPTf8zofuz3J3tNTYaA9i2 l/CI/u33cu1FJbYh3b9/Iz5gKHKhhyCSC/lZ0NS09Ku7fPez2YBnU2Q2UhD+FgHuWgJO Gg== Received: from dc5-exch02.marvell.com ([199.233.59.182]) by mx0a-0016f401.pphosted.com (PPS) with ESMTPS id 3pthvw88pr-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Fri, 07 Apr 2023 05:23:59 -0700 Received: from DC5-EXCH02.marvell.com (10.69.176.39) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server (TLS) id 15.0.1497.48; Fri, 7 Apr 2023 05:23:57 -0700 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server id 15.0.1497.48 via Frontend Transport; Fri, 7 Apr 2023 05:23:57 -0700 Received: from hyd1425.marvell.com (unknown [10.29.37.83]) by maili.marvell.com (Postfix) with ESMTP id 486483F7062; Fri, 7 Apr 2023 05:23:53 -0700 (PDT) From: Sai Krishna To: , , , , , , , , , , , , CC: Sai Krishna Subject: [net PATCH v2 1/7] octeontx2-af: Secure APR table update with the lock Date: Fri, 7 Apr 2023 17:53:38 +0530 Message-ID: <20230407122344.4059-2-saikrishnag@marvell.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230407122344.4059-1-saikrishnag@marvell.com> References: <20230407122344.4059-1-saikrishnag@marvell.com> MIME-Version: 1.0 X-Proofpoint-ORIG-GUID: kTQv6lgVAO_GSKLpznL0LK5J2INraHAe X-Proofpoint-GUID: kTQv6lgVAO_GSKLpznL0LK5J2INraHAe X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.942,Hydra:6.0.573,FMLib:17.11.170.22 definitions=2023-04-07_08,2023-04-06_03,2023-02-09_01 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Geetha sowjanya APR table contains the lmtst base address of PF/VFs. These entries are updated by the PF/VF during the device probe. Due to race condition while updating the entries are getting corrupted. Hence secure the APR table update with the lock. Fixes: 893ae97214c3 ("octeontx2-af: cn10k: Support configurable LMTST regions") Signed-off-by: Geetha sowjanya Signed-off-by: Sunil Kovvuri Goutham Signed-off-by: Sai Krishna --- drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c index 4ad9ff025c96..8530250f6fba 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_cn10k.c @@ -142,16 +142,17 @@ int rvu_mbox_handler_lmtst_tbl_setup(struct rvu *rvu, * region, if so, convert that IOVA to physical address and * populate LMT table with that address */ + mutex_lock(&rvu->rsrc_lock); if (req->use_local_lmt_region) { err = rvu_get_lmtaddr(rvu, req->hdr.pcifunc, req->lmt_iova, &lmt_addr); if (err < 0) - return err; + goto error; /* Update the lmt addr for this PFFUNC in the LMT table */ err = rvu_update_lmtaddr(rvu, req->hdr.pcifunc, lmt_addr); if (err) - return err; + goto error; } /* Reconfiguring lmtst map table in lmt region shared mode i.e. make @@ -181,7 +182,7 @@ int rvu_mbox_handler_lmtst_tbl_setup(struct rvu *rvu, */ err = rvu_update_lmtaddr(rvu, req->hdr.pcifunc, val); if (err) - return err; + goto error; } /* This mailbox can also be used to update word1 of APR_LMT_MAP_ENTRY_S @@ -230,6 +231,7 @@ int rvu_mbox_handler_lmtst_tbl_setup(struct rvu *rvu, } error: + mutex_unlock(&rvu->rsrc_lock); return err; }