From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:52256 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753630AbeDYKk7 (ORCPT ); Wed, 25 Apr 2018 06:40:59 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jacob Keller , Andrew Bowers , Jeff Kirsher , Sasha Levin Subject: [PATCH 4.14 095/183] i40e: fix reported mask for ntuple filters Date: Wed, 25 Apr 2018 12:35:15 +0200 Message-Id: <20180425103246.288420349@linuxfoundation.org> In-Reply-To: <20180425103242.532713678@linuxfoundation.org> References: <20180425103242.532713678@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: stable-owner@vger.kernel.org List-ID: 4.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jacob Keller [ Upstream commit 40339af33c703bacb336493157d43c86a8bf2fed ] In commit 36777d9fa24c ("i40e: check current configured input set when adding ntuple filters") some code was added to report the input set mask for a given filter when reporting it to the user. This code is necessary so that the reported filter correctly displays that it is or is not masking certain fields. Unfortunately the code was incorrect. Development error accidentally swapped the mask values for the IPv4 addresses with the L4 port numbers. The port numbers are only 16bits wide while IPv4 addresses are 32 bits. Unfortunately we assigned only 16 bits to the IPv4 address masks. Additionally we assigned 32bit value 0xFFFFFFF to the TCP port numbers. This second part does not matter as the value would be truncated to 16bits regardless, but it is unnecessary. Fix the reported masks to properly report that the entire field is masked. Fixes: 36777d9fa24c ("i40e: check current configured input set when adding ntuple filters") Signed-off-by: Jacob Keller Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) --- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c +++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c @@ -2588,16 +2588,16 @@ static int i40e_get_ethtool_fdir_entry(s no_input_set: if (input_set & I40E_L3_SRC_MASK) - fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFF); + fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFFFFFF); if (input_set & I40E_L3_DST_MASK) - fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFF); + fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFFFFFF); if (input_set & I40E_L4_SRC_MASK) - fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFFFFFF); + fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFF); if (input_set & I40E_L4_DST_MASK) - fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFFFFFF); + fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFF); if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET) fsp->ring_cookie = RX_CLS_FLOW_DISC;