From mboxrd@z Thu Jan 1 00:00:00 1970 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 B1B6AC77B7D for ; Mon, 15 May 2023 17:04:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243465AbjEOREh (ORCPT ); Mon, 15 May 2023 13:04:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41126 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243477AbjEOREQ (ORCPT ); Mon, 15 May 2023 13:04:16 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 61BFE8A46 for ; Mon, 15 May 2023 10:02:44 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id E1A4062A83 for ; Mon, 15 May 2023 17:02:16 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E62AAC433D2; Mon, 15 May 2023 17:02:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1684170136; bh=Ft2/+1LqFml0ZneYjQyDyvTcZW3SscIozkhhGIbKal8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gqhyycdE2RGDfjtFTEppxCwPX+PVcKB8kQy79gtXZVsXLL7LIQ64JEeasJo3C/aGV XxWubAqPEgBimFVMz2RH0pqASeLdHeoEdXICLlUpTsRSE70K+duGh4rbHrHS0jvyWf Tg93tnpn3P/wQuaMzJKkCHL4aptl0dNmiOlk17CY= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Subbaraya Sundeep , Sunil Kovvuri Goutham , Geetha sowjanya , Leon Romanovsky , Paolo Abeni , Sasha Levin Subject: [PATCH 6.1 036/239] octeontx2-af: mcs: Write TCAM_DATA and TCAM_MASK registers at once Date: Mon, 15 May 2023 18:24:59 +0200 Message-Id: <20230515161722.797889424@linuxfoundation.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230515161721.545370111@linuxfoundation.org> References: <20230515161721.545370111@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Subbaraya Sundeep [ Upstream commit b51612198603fce33d6cf57b4864e3018a1cd9b8 ] As per hardware errata on CN10KB, all the four TCAM_DATA and TCAM_MASK registers has to be written at once otherwise write to individual registers will fail. Hence write to all TCAM_DATA registers and then to all TCAM_MASK registers. Fixes: cfc14181d497 ("octeontx2-af: cn10k: mcs: Manage the MCS block hardware resources") Signed-off-by: Subbaraya Sundeep Signed-off-by: Sunil Kovvuri Goutham Signed-off-by: Geetha sowjanya Reviewed-by: Leon Romanovsky Signed-off-by: Paolo Abeni Signed-off-by: Sasha Levin --- drivers/net/ethernet/marvell/octeontx2/af/mcs.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mcs.c b/drivers/net/ethernet/marvell/octeontx2/af/mcs.c index 492baa0b594ce..148417d633a56 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/mcs.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/mcs.c @@ -473,6 +473,8 @@ void mcs_flowid_entry_write(struct mcs *mcs, u64 *data, u64 *mask, int flow_id, for (reg_id = 0; reg_id < 4; reg_id++) { reg = MCSX_CPM_RX_SLAVE_FLOWID_TCAM_DATAX(reg_id, flow_id); mcs_reg_write(mcs, reg, data[reg_id]); + } + for (reg_id = 0; reg_id < 4; reg_id++) { reg = MCSX_CPM_RX_SLAVE_FLOWID_TCAM_MASKX(reg_id, flow_id); mcs_reg_write(mcs, reg, mask[reg_id]); } @@ -480,6 +482,8 @@ void mcs_flowid_entry_write(struct mcs *mcs, u64 *data, u64 *mask, int flow_id, for (reg_id = 0; reg_id < 4; reg_id++) { reg = MCSX_CPM_TX_SLAVE_FLOWID_TCAM_DATAX(reg_id, flow_id); mcs_reg_write(mcs, reg, data[reg_id]); + } + for (reg_id = 0; reg_id < 4; reg_id++) { reg = MCSX_CPM_TX_SLAVE_FLOWID_TCAM_MASKX(reg_id, flow_id); mcs_reg_write(mcs, reg, mask[reg_id]); } -- 2.39.2