From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 153EFDF53 for ; Mon, 15 May 2023 17:14:54 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6CCF1C433EF; Mon, 15 May 2023 17:14:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1684170893; bh=Ft2/+1LqFml0ZneYjQyDyvTcZW3SscIozkhhGIbKal8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CmE4d+e8RPYovESEAgnqga/kt8adR3eVzVLDX1tirc21xIZcpEG9rPL/yv4dR14s+ 0l1kPNcgptNon7GXo1qcnswI0N4Xb3bGCF0bmkSSGVoNxTYSIJk9F9q0Cv41aCktur 0XjX26e4/AIoltC3EKXObNtnbbgYHI+4T80ZGbOk= 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 6.2 034/242] octeontx2-af: mcs: Write TCAM_DATA and TCAM_MASK registers at once Date: Mon, 15 May 2023 18:26:00 +0200 Message-Id: <20230515161722.945984812@linuxfoundation.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230515161721.802179972@linuxfoundation.org> References: <20230515161721.802179972@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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