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DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Jan 2023 09:05:39.5089 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 01bae6f3-f66a-49e4-a14c-08dafdea2a03 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d; Ip=[165.204.84.17]; Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BL02EPF000108EB.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY5PR12MB6106 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org From: Thomas Monjalon The VXLAN and VXLAN-GPE headers were including reserved fields with other fields in big uint32_t struct members. Some more precise definitions are added as union of the old ones. The new struct members are smaller in size and in names. Signed-off-by: Thomas Monjalon --- lib/net/rte_vxlan.h | 35 +++++++++++++++++++++++++++++------ 1 file changed, 29 insertions(+), 6 deletions(-) diff --git a/lib/net/rte_vxlan.h b/lib/net/rte_vxlan.h index 929fa7a1dd01..997fc784fc84 100644 --- a/lib/net/rte_vxlan.h +++ b/lib/net/rte_vxlan.h @@ -30,9 +30,20 @@ extern "C" { * Contains the 8-bit flag, 24-bit VXLAN Network Identifier and * Reserved fields (24 bits and 8 bits) */ +__extension__ /* no named member in struct */ struct rte_vxlan_hdr { - rte_be32_t vx_flags; /**< flag (8) + Reserved (24). */ - rte_be32_t vx_vni; /**< VNI (24) + Reserved (8). */ + union { + struct { + rte_be32_t vx_flags; /**< flags (8) + Reserved (24). */ + rte_be32_t vx_vni; /**< VNI (24) + Reserved (8). */ + }; + struct { + uint8_t flags; /**< Should be 8 (I flag). */ + uint8_t rsvd0[3]; /**< Reserved. */ + uint8_t vni[3]; /**< VXLAN identifier. */ + uint8_t rsvd1; /**< Reserved. */ + }; + }; } __rte_packed; /** VXLAN tunnel header length. */ @@ -45,11 +56,23 @@ struct rte_vxlan_hdr { * Contains the 8-bit flag, 8-bit next-protocol, 24-bit VXLAN Network * Identifier and Reserved fields (16 bits and 8 bits). */ +__extension__ /* no named member in struct */ struct rte_vxlan_gpe_hdr { - uint8_t vx_flags; /**< flag (8). */ - uint8_t reserved[2]; /**< Reserved (16). */ - uint8_t proto; /**< next-protocol (8). */ - rte_be32_t vx_vni; /**< VNI (24) + Reserved (8). */ + union { + struct { + uint8_t vx_flags; /**< flag (8). */ + uint8_t reserved[2]; /**< Reserved (16). */ + uint8_t protocol; /**< next-protocol (8). */ + rte_be32_t vx_vni; /**< VNI (24) + Reserved (8). */ + }; + struct { + uint8_t flags; /**< Flags. */ + uint8_t rsvd0[2]; /**< Reserved. */ + uint8_t proto; /**< Next protocol. */ + uint8_t vni[3]; /**< VXLAN identifier. */ + uint8_t rsvd1; /**< Reserved. */ + }; + }; } __rte_packed; /** VXLAN-GPE tunnel header length. */