Re: [dpdk-dev] [PATCH v4 1/2] rte_flow: add eCPRI key fields to flow API

[Akhil Goyal <akhil.goyal@nxp.com>]

> +#ifdef __cplusplus
> +extern "C" {
> +#endif
> +
> +/**
> + * eCPRI Protocol Revision 1.0, 1.1, 1.2, 2.0: 0001b
> + * Other values are reserved for future
> + */
> +#define RTE_ECPRI_REV_UPTO_20		1
> +
> +/**
> + * eCPRI message types in specifications
> + * IWF* types will only be supported from rev.2
> + */
> +#define RTE_ECPRI_MSG_TYPE_IQ_DATA	0
> +#define RTE_ECPRI_MSG_TYPE_BIT_SEQ	1
> +#define RTE_ECPRI_MSG_TYPE_RTC_CTRL	2
> +#define RTE_ECPRI_MSG_TYPE_GEN_DATA	3
> +#define RTE_ECPRI_MSG_TYPE_RM_ACC	4
> +#define RTE_ECPRI_MSG_TYPE_DLY_MSR	5
> +#define RTE_ECPRI_MSG_TYPE_RMT_RST	6
> +#define RTE_ECPRI_MSG_TYPE_EVT_IND	7
> +#define RTE_ECPRI_MSG_TYPE_IWF_UP	8
> +#define RTE_ECPRI_MSG_TYPE_IWF_OPT	9
> +#define RTE_ECPRI_MSG_TYPE_IWF_MAP	10
> +#define RTE_ECPRI_MSG_TYPE_IWF_DCTRL	11

Should we have a comment for reserved and vendor specific message types as well?

> +
> +/**
> + * eCPRI Common Header
> + */
> +RTE_STD_C11
> +struct rte_ecpri_common_hdr {
> +#if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
> +	uint32_t size:16;		/**< Payload Size */
> +	uint32_t type:8;		/**< Message Type */
> +	uint32_t c:1;			/**< Concatenation Indicator */
> +	uint32_t res:3;			/**< Reserved */
> +	uint32_t revision:4;		/**< Protocol Revision */
> +#elif RTE_BYTE_ORDER == RTE_BIG_ENDIAN
> +	uint32_t revision:4;		/**< Protocol Revision */
> +	uint32_t res:3;			/**< Reserved */
> +	uint32_t c:1;			/**< Concatenation Indicator */
> +	uint32_t type:8;		/**< Message Type */
> +	uint32_t size:16;		/**< Payload Size */
> +#endif
> +} __rte_packed;
> +
> +/**
> + * eCPRI Message Header of Type #0: IQ Data
> + */
> +struct rte_ecpri_msg_iq_data {
> +	rte_be16_t pc_id;		/**< Physical channel ID */
> +	rte_be16_t seq_id;		/**< Sequence ID */
> +};
> +
> +/**
> + * eCPRI Message Header of Type #1: Bit Sequence
> + */
> +struct rte_ecpri_msg_bit_seq {
> +	rte_be16_t pc_id;		/**< Physical channel ID */
> +	rte_be16_t seq_id;		/**< Sequence ID */
> +};
> +
> +/**
> + * eCPRI Message Header of Type #2: Real-Time Control Data
> + */
> +struct rte_ecpri_msg_rtc_ctrl {
> +	rte_be16_t rtc_id;		/**< Real-Time Control Data ID */
> +	rte_be16_t seq_id;		/**< Sequence ID */
> +};
> +
> +/**
> + * eCPRI Message Header of Type #3: Generic Data Transfer
> + */
> +struct rte_ecpri_msg_gen_data {
> +	rte_be32_t pc_id;		/**< Physical channel ID */
> +	rte_be32_t seq_id;		/**< Sequence ID */
> +};
> +
> +/**
> + * eCPRI Message Header of Type #4: Remote Memory Access
> + */
> +RTE_STD_C11
> +struct rte_ecpri_msg_rm_access {
> +#if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
> +	uint32_t ele_id:16;		/**< Element ID */
> +	uint32_t rr:4;			/**< Req/Resp */
> +	uint32_t rw:4;			/**< Read/Write */
> +	uint32_t rma_id:8;		/**< Remote Memory Access ID */
> +#elif RTE_BYTE_ORDER == RTE_BIG_ENDIAN
> +	uint32_t rma_id:8;		/**< Remote Memory Access ID */
> +	uint32_t rw:4;			/**< Read/Write */
> +	uint32_t rr:4;			/**< Req/Resp */
> +	uint32_t ele_id:16;		/**< Element ID */
> +#endif
> +	rte_be16_t addr_m;		/**< 48-bits address (16 MSB) */
> +	rte_be32_t addr_l;		/**< 48-bits address (32 LSB) */
> +	rte_be16_t length;		/**< number of bytes */
> +} __rte_packed;
> +
> +/**
> + * eCPRI Message Header of Type #5: One-Way Delay Measurement
> + */
> +struct rte_ecpri_msg_delay_measure {
> +	uint8_t msr_id;			/**< Measurement ID */
> +	uint8_t act_type;		/**< Action Type */

Should we also add timestamp and compensation fields as well here?

> +};
> +
> +/**
> + * eCPRI Message Header of Type #6: Remote Reset
> + */
> +struct rte_ecpri_msg_remote_reset {
> +	uint8_t msr_id;			/**< Measurement ID */
> +	uint8_t act_type;		/**< Action Type */
> +};

I think it is a copy paste error.
It should have uint16_t reset_id and uint8_t reset_code_op

> +
> +/**
> + * eCPRI Message Header of Type #7: Event Indication
> + */
> +struct rte_ecpri_msg_event_ind {
> +	uint8_t evt_id;			/**< Event ID */
> +	uint8_t evt_type;		/**< Event Type */
> +	uint8_t seq;			/**< Sequence Number */
> +	uint8_t number;			/**< Number of Faults/Notif */
> +};
Should we also define enums for evt_type and other fields in this file.

> +
> +/**
> + * eCPRI Message Header Format: Common Header + Message Types
> + */
> +RTE_STD_C11
> +struct rte_ecpri_msg_hdr {
> +	union {
> +		struct rte_ecpri_common_hdr common;
> +		uint32_t dw0;
> +	};
> +	union {
> +		struct rte_ecpri_msg_iq_data type0;
> +		struct rte_ecpri_msg_bit_seq type1;
> +		struct rte_ecpri_msg_rtc_ctrl type2;
> +		struct rte_ecpri_msg_bit_seq type3;
> +		struct rte_ecpri_msg_rm_access type4;
> +		struct rte_ecpri_msg_delay_measure type5;
> +		struct rte_ecpri_msg_remote_reset type6;
> +		struct rte_ecpri_msg_event_ind type7;
> +		uint32_t dummy[3];

Why 3 dummy? IWF messages are 4.

> +	};
> +};
> +
> +#ifdef __cplusplus
> +}
> +#endif
> +
> +#endif /* _RTE_ECPRI_H_ */
> diff --git a/lib/librte_net/rte_ether.h b/lib/librte_net/rte_ether.h
> index 0ae4e75..184a3f9 100644
> --- a/lib/librte_net/rte_ether.h
> +++ b/lib/librte_net/rte_ether.h
> @@ -304,6 +304,7 @@ struct rte_vlan_hdr {
>  #define RTE_ETHER_TYPE_LLDP 0x88CC /**< LLDP Protocol. */
>  #define RTE_ETHER_TYPE_MPLS 0x8847 /**< MPLS ethertype. */
>  #define RTE_ETHER_TYPE_MPLSM 0x8848 /**< MPLS multicast ethertype. */
> +#define RTE_ETHER_TYPE_ECPRI 0xAEFE /**< eCPRI ethertype (.1Q supported).
> */
> 
>  /**
>   * Extract VLAN tag information into mbuf
> --
> 1.8.3.1