Hi,
> -----Original Message-----
> From: Tao, Zhe
> Sent: Friday, October 30, 2015 9:02 PM
> To: dev at dpdk.org
> Cc: Tao, Zhe; Liang, Cunming
> Subject: [dpdk-dev][PATCH 1/4 v3] add vector PMD RX for FVL
>
> The vPMD RX function uses the multi-buffer and SSE instructions to
> accelerate the RX speed, but now the pktype cannot be supported by the vPMD
> RX,
> because it will decrease the performance heavily.
>
> Signed-off-by: Zhe Tao <zhe.tao at intel.com>
> ---
> config/common_bsdapp | 2 +
> config/common_linuxapp | 2 +
> drivers/net/i40e/Makefile | 1 +
> drivers/net/i40e/i40e_rxtx.c | 28 ++-
> drivers/net/i40e/i40e_rxtx.h | 28 ++-
> drivers/net/i40e/i40e_rxtx_vec.c | 484
> +++++++++++++++++++++++++++++++++++++++
> 6 files changed, 540 insertions(+), 5 deletions(-)
> create mode 100644 drivers/net/i40e/i40e_rxtx_vec.c
>
[...]
> +void __attribute__((weak))
> +i40e_rx_queue_release_mbufs_vec(struct i40e_rx_queue __rte_unused*rxq)
> +{
> + return;
> +}
> diff --git a/drivers/net/i40e/i40e_rxtx.h b/drivers/net/i40e/i40e_rxtx.h
> index 4385142..961a415 100644
> --- a/drivers/net/i40e/i40e_rxtx.h
> +++ b/drivers/net/i40e/i40e_rxtx.h
> @@ -44,13 +44,27 @@
> #define I40E_TX_FLAG_INSERT_VLAN ((uint32_t)(1 << 1))
> #define I40E_TX_FLAG_TSYN ((uint32_t)(1 << 2))
>
> -#ifdef RTE_LIBRTE_I40E_RX_ALLOW_BULK_ALLOC
> #define RTE_PMD_I40E_RX_MAX_BURST 32
> -#endif
> +#define RTE_PMD_I40E_TX_MAX_BURST 32
> +
> +#define RTE_I40E_VPMD_RX_BURST 32
> +#define RTE_I40E_VPMD_TX_BURST 32
> +#define RTE_I40E_RXQ_REARM_THRESH 32
> +#define RTE_I40E_MAX_RX_BURST RTE_I40E_RXQ_REARM_THRESH
> +#define RTE_I40E_TX_MAX_FREE_BUF_SZ 64
> +#define RTE_I40E_DESCS_PER_LOOP 4
>
> #define I40E_RXBUF_SZ_1024 1024
> #define I40E_RXBUF_SZ_2048 2048
>
> +#undef container_of
> +#define container_of(ptr, type, member) ({ \
> + typeof(((type *)0)->member)(*__mptr) = (ptr); \
> + (type *)((char *)__mptr - offsetof(type, member)); })
> +
> +#define I40E_TD_CMD (I40E_TX_DESC_CMD_ICRC |\
> + I40E_TX_DESC_CMD_EOP)
> +
> enum i40e_header_split_mode {
> i40e_header_split_none = 0,
> i40e_header_split_enabled = 1,
> @@ -100,6 +114,11 @@ struct i40e_rx_queue {
> struct rte_mbuf fake_mbuf; /**< dummy mbuf */
> struct rte_mbuf *rx_stage[RTE_PMD_I40E_RX_MAX_BURST * 2];
> #endif
> +
> + uint16_t rxrearm_nb; /**< number of remaining to be re-armed */
> + uint16_t rxrearm_start; /**< the idx we start the re-arming from */
> + uint64_t mbuf_initializer; /**< value to init mbufs */
> +
> uint8_t port_id; /**< device port ID */
> uint8_t crc_len; /**< 0 if CRC stripped, 4 otherwise */
> uint16_t queue_id; /**< RX queue index */
> @@ -210,4 +229,9 @@ uint32_t i40e_dev_rx_queue_count(struct rte_eth_dev
> *dev,
> uint16_t rx_queue_id);
> int i40e_dev_rx_descriptor_done(void *rx_queue, uint16_t offset);
>
> +uint16_t i40e_recv_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
> + uint16_t nb_pkts);
> +int i40e_rxq_vec_setup(struct i40e_rx_queue *rxq);
> +void i40e_rx_queue_release_mbufs_vec(struct i40e_rx_queue *rxq);
> +
> #endif /* _I40E_RXTX_H_ */
> diff --git a/drivers/net/i40e/i40e_rxtx_vec.c
> b/drivers/net/i40e/i40e_rxtx_vec.c
> new file mode 100644
> index 0000000..a95916b
> --- /dev/null
> +++ b/drivers/net/i40e/i40e_rxtx_vec.c
> @@ -0,0 +1,484 @@
[...]
> +
> +#include <tmmintrin.h>
> +
> +#ifndef __INTEL_COMPILER
> +#pragma GCC diagnostic ignored "-Wcast-qual"
> +#endif
> +
> +static inline void
> +i40e_rxq_rearm(struct i40e_rx_queue *rxq)
> +{
> + int i;
> + uint16_t rx_id;
> +
Tiny typo, not necessary to reserve a blank line between these two definition.
> + volatile union i40e_rx_desc *rxdp;
> + struct i40e_rx_entry *rxep = &rxq->sw_ring[rxq->rxrearm_start];
> + struct rte_mbuf *mb0, *mb1;
> + __m128i hdr_room = _mm_set_epi64x(RTE_PKTMBUF_HEADROOM,
> + RTE_PKTMBUF_HEADROOM);
> + __m128i dma_addr0, dma_addr1;
> +
[...]
> +
> + /* vPMD receive routine, now only accept (nb_pkts ==
> RTE_I40E_VPMD_RX_BURST)
> + * in one loop
> + *
> + * Notice:
> + * - nb_pkts < RTE_I40E_DESCS_PER_LOOP, just return no packet
> + * - nb_pkts > RTE_I40E_VPMD_RX_BURST, only scan
> RTE_I40E_VPMD_RX_BURST
> + * numbers of DD bits
> +
Remove the blank line.
> + */
> +static inline uint16_t
> +_recv_raw_pkts_vec(struct i40e_rx_queue *rxq, struct rte_mbuf **rx_pkts,
> + uint16_t nb_pkts, uint8_t *split_packet)
> +{
[...]
