From 146ffa81d05ec331b46a3980fe23b7a28cac142e Mon Sep 17 00:00:00 2001 From: Leyi Rong Date: Tue, 20 Apr 2021 13:29:45 +0800 Subject: [PATCH] net/i40e: add Tx preparation for simple Tx datapath Introduce i40e_simple_prep_pkts() as the preparation function for simple Tx data path, as it's for sanity check for simple Tx. Suggested-by: Konstantin Ananyev Signed-off-by: Leyi Rong Acked-by: Konstantin Ananyev --- drivers/net/i40e/i40e_rxtx.c | 39 +++++++++++++++++++++++++++++++++++- drivers/net/i40e/i40e_rxtx.h | 2 ++ 2 files changed, 40 insertions(+), 1 deletion(-) diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c index 3c7686c3f4..86a9eae370 100644 --- a/drivers/net/i40e/i40e_rxtx.c +++ b/drivers/net/i40e/i40e_rxtx.c @@ -1479,6 +1479,43 @@ i40e_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts, return nb_tx; } +/********************************************************************* + * + * TX simple prep functions + * + **********************************************************************/ +uint16_t +i40e_simple_prep_pkts(__rte_unused void *tx_queue, struct rte_mbuf **tx_pkts, + uint16_t nb_pkts) +{ + int i; + uint64_t ol_flags; + struct rte_mbuf *m; + + for (i = 0; i < nb_pkts; i++) { + m = tx_pkts[i]; + ol_flags = m->ol_flags; + + if (m->nb_segs != 1) { + rte_errno = EINVAL; + return i; + } + + if (ol_flags & PKT_TX_OFFLOAD_MASK) { + rte_errno = ENOTSUP; + return i; + } + + /* check the size of packet */ + if (m->pkt_len < I40E_TX_MIN_PKT_LEN || + m->pkt_len > I40E_FRAME_SIZE_MAX) { + rte_errno = EINVAL; + return i; + } + } + return i; +} + /********************************************************************* * * TX prep functions @@ -3412,7 +3449,7 @@ i40e_set_tx_function(struct rte_eth_dev *dev) PMD_INIT_LOG(DEBUG, "Simple tx finally be used."); dev->tx_pkt_burst = i40e_xmit_pkts_simple; } - dev->tx_pkt_prepare = NULL; + dev->tx_pkt_prepare = i40e_simple_prep_pkts; } else { PMD_INIT_LOG(DEBUG, "Xmit tx finally be used."); dev->tx_pkt_burst = i40e_xmit_pkts; diff --git a/drivers/net/i40e/i40e_rxtx.h b/drivers/net/i40e/i40e_rxtx.h index 3447a58c82..5ccf5773e8 100644 --- a/drivers/net/i40e/i40e_rxtx.h +++ b/drivers/net/i40e/i40e_rxtx.h @@ -208,6 +208,8 @@ uint16_t i40e_recv_scattered_pkts(void *rx_queue, uint16_t i40e_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts); +uint16_t i40e_simple_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, + uint16_t nb_pkts); uint16_t i40e_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts); int i40e_tx_queue_init(struct i40e_tx_queue *txq); -- 2.20.1