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net: add extension header for GTP PSC

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Define new rte header for GTP PDU session container
based on RFC 38415-g30

Signed-off-by: Raslan Darawsheh <rasland@nvidia.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
This commit is contained in:
Raslan Darawsheh 2021-08-23 13:55:38 +03:00 committed by Ferruh Yigit
parent 3e3f736e50
commit e8ca1479cd
1 changed files with 78 additions and 0 deletions
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78
lib/net/rte_gtp.h
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@ -61,6 +61,84 @@ struct rte_gtp_hdr_ext_word {
uint8_t next_ext; /**< Next Extension Header Type. */
} __rte_packed;
/**
* Optional extension for GTP with next_ext set to 0x85
* defined based on RFC 38415-g30.
*/
__extension__
struct rte_gtp_psc_generic_hdr {
uint8_t ext_hdr_len; /**< PDU ext hdr len in multiples of 4 bytes */
#if RTE_BYTE_ORDER == RTE_BIG_ENDIAN
uint8_t type:4; /**< PDU type */
uint8_t qmp:1; /**< Qos Monitoring Packet */
uint8_t pad:3; /**< type specific pad bits */
uint8_t spare:2; /**< type specific spare bits */
uint8_t qfi:6; /**< Qos Flow Identifier */
#else
uint8_t qfi:6; /**< Qos Flow Identifier */
uint8_t spare:2; /**< type specific spare bits */
uint8_t pad:3; /**< type specific pad bits */
uint8_t qmp:1; /**< Qos Monitoring Packet */
uint8_t type:4; /**< PDU type */
#endif
uint8_t data[0]; /**< variable length data fields */
} __rte_packed;
/**
* Optional extension for GTP with next_ext set to 0x85
* type0 defined based on RFC 38415-g30
*/
__extension__
struct rte_gtp_psc_type0_hdr {
uint8_t ext_hdr_len; /**< PDU ext hdr len in multiples of 4 bytes */
#if RTE_BYTE_ORDER == RTE_BIG_ENDIAN
uint8_t type:4; /**< PDU type */
uint8_t qmp:1; /**< Qos Monitoring Packet */
uint8_t snp:1; /**< Sequence number presence */
uint8_t spare_dl1:2; /**< spare down link bits */
uint8_t ppp:1; /**< Paging policy presence */
uint8_t rqi:1; /**< Reflective Qos Indicator */
uint8_t qfi:6; /**< Qos Flow Identifier */
#else
uint8_t qfi:6; /**< Qos Flow Identifier */
uint8_t rqi:1; /**< Reflective Qos Indicator */
uint8_t ppp:1; /**< Paging policy presence */
uint8_t spare_dl1:2; /**< spare down link bits */
uint8_t snp:1; /**< Sequence number presence */
uint8_t type:4; /**< PDU type */
#endif
uint8_t data[0]; /**< variable length data fields */
} __rte_packed;
/**
* Optional extension for GTP with next_ext set to 0x85
* type1 defined based on RFC 38415-g30
*/
__extension__
struct rte_gtp_psc_type1_hdr {
uint8_t ext_hdr_len; /**< PDU ext hdr len in multiples of 4 bytes */
#if RTE_BYTE_ORDER == RTE_BIG_ENDIAN
uint8_t type:4; /**< PDU type */
uint8_t qmp:1; /**< Qos Monitoring Packet */
uint8_t dl_delay_ind:1; /**< dl delay result presence */
uint8_t ul_delay_ind:1; /**< ul delay result presence */
uint8_t snp:1; /**< Sequence number presence ul */
uint8_t n_delay_ind:1; /**< N3/N9 delay result presence */
uint8_t spare_ul2:1; /**< spare up link bits */
uint8_t qfi:6; /**< Qos Flow Identifier */
#else
uint8_t qfi:6; /**< Qos Flow Identifier */
uint8_t spare_ul2:1; /**< spare up link bits */
uint8_t n_delay_ind:1; /**< N3/N9 delay result presence */
uint8_t snp:1; /**< Sequence number presence ul */
uint8_t ul_delay_ind:1; /**< ul delay result presence */
uint8_t dl_delay_ind:1; /**< dl delay result presence */
uint8_t qmp:1; /**< Qos Monitoring Packet */
uint8_t type:4; /**< PDU type */
#endif
uint8_t data[0]; /**< variable length data fields */
} __rte_packed;
/** GTP header length */
#define RTE_ETHER_GTP_HLEN \
(sizeof(struct rte_udp_hdr) + sizeof(struct rte_gtp_hdr))