From patchwork Fri Jan 21 06:34:40 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Subbaraya Sundeep X-Patchwork-Id: 12719325 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 8FADAC4332F for ; Fri, 21 Jan 2022 06:35:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1378710AbiAUGfG (ORCPT ); Fri, 21 Jan 2022 01:35:06 -0500 Received: from mx0b-0016f401.pphosted.com ([67.231.156.173]:32844 "EHLO mx0b-0016f401.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233954AbiAUGfF (ORCPT ); Fri, 21 Jan 2022 01:35:05 -0500 Received: from pps.filterd (m0045851.ppops.net [127.0.0.1]) by mx0b-0016f401.pphosted.com (8.16.1.2/8.16.1.2) with ESMTP id 20L05s49029339; Thu, 20 Jan 2022 22:35:02 -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=iDlan2tDEYwFB4HK6VnsY6tjV1MANLaxqz/J5MFVtpk=; b=lM6THIWuav/jJsyoYGJtlOOo4ajXdAnpWI02sGlhbH10bfgJk3m6S89xlc6YS2M0wKjF xge/mc4rIPRUqTSJb/ACiTjWuRrRsuuVNfa31Tx3pObj6wf8xq63x8/HsuPKauV8GhaV HVNWLEjImNvGFc5QoS9D+YlyRXEcP+19SPcQCfU7S+FZoGJnsm++IRDIybgike1B5081 hPwVS1OzByuj43ZZ0ex+S8NWZMx0a0kNzjfmxAs0HaODrU7/libi+fLJmxneWKDSYiCt USRKjVRbT6BqQztEMaxBHCyocWZweX1zeHzIjOsdccQn4iWNksf1IfQDveOZ0pidGGUv EA== Received: from dc5-exch01.marvell.com ([199.233.59.181]) by mx0b-0016f401.pphosted.com (PPS) with ESMTPS id 3dqj05gxwc-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Thu, 20 Jan 2022 22:35:02 -0800 Received: from DC5-EXCH02.marvell.com (10.69.176.39) by DC5-EXCH01.marvell.com (10.69.176.38) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 20 Jan 2022 22:35:00 -0800 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server id 15.0.1497.18 via Frontend Transport; Thu, 20 Jan 2022 22:35:00 -0800 Received: from hyd1358.marvell.com (unknown [10.29.37.11]) by maili.marvell.com (Postfix) with ESMTP id 7C2C23F7095; Thu, 20 Jan 2022 22:34:57 -0800 (PST) From: Subbaraya Sundeep To: , , , CC: , , Subject: [net PATCH 2/9] octeontx2-af: Fix LBK backpressure id count Date: Fri, 21 Jan 2022 12:04:40 +0530 Message-ID: <1642746887-30924-3-git-send-email-sbhatta@marvell.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1642746887-30924-1-git-send-email-sbhatta@marvell.com> References: <1642746887-30924-1-git-send-email-sbhatta@marvell.com> MIME-Version: 1.0 X-Proofpoint-GUID: 4dXWBhh7smpsZv1Ckget4cAG840_qDYl X-Proofpoint-ORIG-GUID: 4dXWBhh7smpsZv1Ckget4cAG840_qDYl X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.816,Hydra:6.0.425,FMLib:17.11.62.513 definitions=2022-01-21_02,2022-01-20_01,2021-12-02_01 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Sunil Goutham In rvu_nix_get_bpid() lbk_bpid_cnt is being read from wrong register. Due to this backpressure enable is failing for LBK VF32 onwards. This patch fixes that. Fixes: fe1939bb2340 ("octeontx2-af: Add SDP interface support") Signed-off-by: Sunil Goutham Signed-off-by: Subbaraya Sundeep --- drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c index d8b1948..b74ab0d 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c @@ -512,11 +512,11 @@ static int rvu_nix_get_bpid(struct rvu *rvu, struct nix_bp_cfg_req *req, cfg = rvu_read64(rvu, blkaddr, NIX_AF_CONST); lmac_chan_cnt = cfg & 0xFF; - cfg = rvu_read64(rvu, blkaddr, NIX_AF_CONST1); - sdp_chan_cnt = cfg & 0xFFF; - cgx_bpid_cnt = hw->cgx_links * lmac_chan_cnt; lbk_bpid_cnt = hw->lbk_links * ((cfg >> 16) & 0xFF); + + cfg = rvu_read64(rvu, blkaddr, NIX_AF_CONST1); + sdp_chan_cnt = cfg & 0xFFF; sdp_bpid_cnt = hw->sdp_links * sdp_chan_cnt; pfvf = rvu_get_pfvf(rvu, req->hdr.pcifunc);