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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: BYAPR12MB3078.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 026169a8-3f03-455b-597d-08d9fc6af282 X-MS-Exchange-CrossTenant-originalarrivaltime: 02 Mar 2022 16:37:31.4528 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: KK7wuyFYR4B9aE9fSWeT0Bc8MHlZxStc2msXSe/zVuGOgCuPcRc+Y9CpmrSpBexpDAaoQIm30bKYNyE+OWjvEg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR12MB3726 X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: stable-bounces@dpdk.org > -----Original Message----- > From: Raslan Darawsheh > Sent: Wednesday, March 2, 2022 6:32 PM > To: Bing Zhao ; Slava Ovsiienko > ; Matan Azrad > Cc: dev@dpdk.org; Jack Min > Subject: RE: [PATCH] net/mlx5: fix matcher priority with ICMP or ICMPv6 >=20 > Hi, >=20 > > -----Original Message----- > > From: Bing Zhao > > Sent: Monday, February 28, 2022 1:42 PM > > To: Slava Ovsiienko ; Matan Azrad > > > > Cc: dev@dpdk.org; Raslan Darawsheh ; Jack Min > > > > Subject: [PATCH] net/mlx5: fix matcher priority with ICMP or ICMPv6 > > > > On TCP/IP-based layered network, ICMP is considered and implemented as > > part of layer 3 IP protocol. Actually, it is a user of the IP protocol > > and must be encapsulated within IP packets. There is no layer 4 > > protocol over ICMP. > > > > The rule with layer 4 should be matched prior to the rule only with > > layer 3 pattern when: > > 1. Both rules are created in the same table > > 2. Both rules could be hit > > 3. The rules has the same priority > > > > The steering result of the packet is indeterministic if there are > > rules with patterns IP and IP+ICMP in the same table with the same > > priority. Like TCP / UDP, a packet should hit the rule with a longer > > matching criterion. > > > > By treating the priority of ICMP/ICMPv6 as a layer 4 priority in the > > PMD internally, the IP+ICMP will be hit in prior to IP only. > > > > Fixes: d53aa89aea91 ("net/mlx5: support matching on ICMP/ICMP6") Added missing Cc: stable@dpdk.org > > > > Signed-off-by: Bing Zhao > > Acked-by: Viacheslav Ovsiienko >=20 > Patch applied to next-net-mlx, >=20 > Kindest regards, > Raslan Darawsheh