[dpdk-dev] [PATCH v5 1/6] ethdev: add Tx preparation

[Thomas Monjalon]

Hi,

2016-10-13 19:36, Tomasz Kulasek:
> Added API for `rte_eth_tx_prep`
> 
> uint16_t rte_eth_tx_prep(uint8_t port_id, uint16_t queue_id,
> 	struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
> 
> Added fields to the `struct rte_eth_desc_lim`:
> 
> 	uint16_t nb_seg_max;
> 		/**< Max number of segments per whole packet. */
> 
> 	uint16_t nb_mtu_seg_max;
> 		/**< Max number of segments per one MTU */
> 
> Created `rte_pkt.h` header with common used functions:

Same comment as in previous revision:
this description lacks the usability and performance considerations.

> +static inline uint16_t
> +rte_eth_tx_prep(uint8_t port_id __rte_unused, uint16_t queue_id __rte_unused,
> +		struct rte_mbuf **tx_pkts __rte_unused, uint16_t nb_pkts)

Doxygen still do not parse it well (same issue as previous revision).

> +/**
> + * Fix pseudo header checksum for TSO and non-TSO tcp/udp packets before
> + * hardware tx checksum.
> + * For non-TSO tcp/udp packets full pseudo-header checksum is counted and set.
> + * For TSO the IP payload length is not included.
> + */
> +static inline int
> +rte_phdr_cksum_fix(struct rte_mbuf *m)

You probably don't need this function since the recent improvements from Olivier.