The simple scalar Tx path does not need to use the full sw_entry structure that the full Tx path uses, so rename the flag for "vector_tx" to instead be "use_vec_entry" since its sole purpose is to flag the use of the smaller tx_entry_vec structure. Then set this flag for the simple Tx path, giving us a perf boost.
Signed-off-by: Bruce Richardson <[email protected]> --- drivers/net/intel/common/tx.h | 6 ++++-- drivers/net/intel/common/tx_scalar_fns.h | 14 +++++++------- drivers/net/intel/cpfl/cpfl_rxtx.c | 4 ++-- drivers/net/intel/i40e/i40e_rxtx.c | 2 +- drivers/net/intel/iavf/iavf_rxtx_vec_avx2.c | 2 +- drivers/net/intel/ice/ice_rxtx.c | 2 +- drivers/net/intel/idpf/idpf_common_rxtx_avx512.c | 2 +- drivers/net/intel/ixgbe/ixgbe_rxtx_vec_common.c | 2 +- 8 files changed, 18 insertions(+), 16 deletions(-) diff --git a/drivers/net/intel/common/tx.h b/drivers/net/intel/common/tx.h index 753e3a2e9e..44270bf3e6 100644 --- a/drivers/net/intel/common/tx.h +++ b/drivers/net/intel/common/tx.h @@ -160,7 +160,7 @@ struct ci_tx_queue { rte_iova_t tx_ring_dma; /* TX ring DMA address */ bool tx_deferred_start; /* don't start this queue in dev start */ bool q_set; /* indicate if tx queue has been configured */ - bool vector_tx; /* port is using vector TX */ + bool use_vec_entry; /* use sw_ring_vec (true for vector and simple paths) */ union { /* the VSI this queue belongs to */ struct i40e_vsi *i40e_vsi; struct iavf_vsi *iavf_vsi; @@ -343,7 +343,8 @@ ci_txq_release_all_mbufs(struct ci_tx_queue *txq, bool use_ctx) if (unlikely(!txq || !txq->sw_ring)) return; - if (!txq->vector_tx) { + if (!txq->use_vec_entry) { + /* Regular scalar path uses sw_ring with ci_tx_entry */ for (uint16_t i = 0; i < txq->nb_tx_desc; i++) { if (txq->sw_ring[i].mbuf != NULL) { rte_pktmbuf_free_seg(txq->sw_ring[i].mbuf); @@ -354,6 +355,7 @@ ci_txq_release_all_mbufs(struct ci_tx_queue *txq, bool use_ctx) } /** + * Vector and simple paths use sw_ring_vec (ci_tx_entry_vec). * vPMD tx will not set sw_ring's mbuf to NULL after free, * so determining buffers to free is a little more complex. */ diff --git a/drivers/net/intel/common/tx_scalar_fns.h b/drivers/net/intel/common/tx_scalar_fns.h index f85ca741a9..b284b80cbe 100644 --- a/drivers/net/intel/common/tx_scalar_fns.h +++ b/drivers/net/intel/common/tx_scalar_fns.h @@ -56,7 +56,7 @@ ci_tx_fill_hw_ring_simple(volatile struct ci_tx_desc *txdp, struct rte_mbuf **pk static __rte_always_inline int ci_tx_free_bufs(struct ci_tx_queue *txq) { - struct ci_tx_entry *txep; + struct ci_tx_entry_vec *txep; uint16_t tx_rs_thresh = txq->tx_rs_thresh; uint16_t i = 0, j = 0; struct rte_mbuf *free[CI_TX_MAX_FREE_BUF_SZ]; @@ -68,7 +68,7 @@ ci_tx_free_bufs(struct ci_tx_queue *txq) rte_cpu_to_le_64(CI_TX_DESC_DTYPE_DESC_DONE)) return 0; - txep = &txq->sw_ring[txq->tx_next_dd - (tx_rs_thresh - 1)]; + txep = &txq->sw_ring_vec[txq->tx_next_dd - (tx_rs_thresh - 1)]; for (i = 0; i < tx_rs_thresh; i++) rte_prefetch0((txep + i)->mbuf); @@ -122,7 +122,7 @@ ci_xmit_burst_simple(struct ci_tx_queue *txq, { volatile struct ci_tx_desc *txr = txq->ci_tx_ring; volatile struct ci_tx_desc *txdp; - struct ci_tx_entry *txep; + struct ci_tx_entry_vec *txep; uint16_t tx_id; uint16_t n = 0; @@ -141,7 +141,7 @@ ci_xmit_burst_simple(struct ci_tx_queue *txq, tx_id = txq->tx_tail; txdp = &txr[tx_id]; - txep = &txq->sw_ring[tx_id]; + txep = &txq->sw_ring_vec[tx_id]; txq->nb_tx_free = (uint16_t)(txq->nb_tx_free - nb_pkts); @@ -149,7 +149,7 @@ ci_xmit_burst_simple(struct ci_tx_queue *txq, n = (uint16_t)(txq->nb_tx_desc - tx_id); /* Store mbufs in backlog */ - ci_tx_backlog_entry(txep, tx_pkts, n); + ci_tx_backlog_entry_vec(txep, tx_pkts, n); /* Write descriptors to HW ring */ ci_tx_fill_hw_ring_simple(txdp, tx_pkts, n); @@ -161,11 +161,11 @@ ci_xmit_burst_simple(struct ci_tx_queue *txq, tx_id = 0; txdp = &txr[tx_id]; - txep = &txq->sw_ring[tx_id]; + txep = &txq->sw_ring_vec[tx_id]; } /* Store remaining mbufs in backlog */ - ci_tx_backlog_entry(txep, tx_pkts + n, (uint16_t)(nb_pkts - n)); + ci_tx_backlog_entry_vec(txep, tx_pkts + n, (uint16_t)(nb_pkts - n)); /* Write remaining descriptors to HW ring */ ci_tx_fill_hw_ring_simple(txdp, tx_pkts + n, (uint16_t)(nb_pkts - n)); diff --git a/drivers/net/intel/cpfl/cpfl_rxtx.c b/drivers/net/intel/cpfl/cpfl_rxtx.c index a3127e7c97..6d8798a60f 100644 --- a/drivers/net/intel/cpfl/cpfl_rxtx.c +++ b/drivers/net/intel/cpfl/cpfl_rxtx.c @@ -328,7 +328,7 @@ cpfl_tx_queue_release(void *txq) rte_free(q->complq); } - ci_txq_release_all_mbufs(q, q->vector_tx); + ci_txq_release_all_mbufs(q, q->use_vec_entry); rte_free(q->sw_ring); rte_memzone_free(q->mz); rte_free(cpfl_txq); @@ -1335,7 +1335,7 @@ cpfl_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id) } txq = &cpfl_txq->base; - ci_txq_release_all_mbufs(txq, txq->vector_tx); + ci_txq_release_all_mbufs(txq, txq->use_vec_entry); if (vport->txq_model == VIRTCHNL2_QUEUE_MODEL_SINGLE) { idpf_qc_single_tx_queue_reset(txq); } else { diff --git a/drivers/net/intel/i40e/i40e_rxtx.c b/drivers/net/intel/i40e/i40e_rxtx.c index ac53554234..185e45fb9a 100644 --- a/drivers/net/intel/i40e/i40e_rxtx.c +++ b/drivers/net/intel/i40e/i40e_rxtx.c @@ -1453,7 +1453,7 @@ i40e_dev_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id) PMD_DRV_LOG(WARNING, "TX queue %u is deferred start", tx_queue_id); - txq->vector_tx = ad->tx_vec_allowed; + txq->use_vec_entry = ad->tx_vec_allowed || ad->tx_simple_allowed; /* * tx_queue_id is queue id application refers to, while diff --git a/drivers/net/intel/iavf/iavf_rxtx_vec_avx2.c b/drivers/net/intel/iavf/iavf_rxtx_vec_avx2.c index cea4ee9863..374c713a94 100644 --- a/drivers/net/intel/iavf/iavf_rxtx_vec_avx2.c +++ b/drivers/net/intel/iavf/iavf_rxtx_vec_avx2.c @@ -1803,7 +1803,7 @@ iavf_xmit_pkts_vec_avx2_offload(void *tx_queue, struct rte_mbuf **tx_pkts, int __rte_cold iavf_txq_vec_setup(struct ci_tx_queue *txq) { - txq->vector_tx = true; + txq->use_vec_entry = true; return 0; } diff --git a/drivers/net/intel/ice/ice_rxtx.c b/drivers/net/intel/ice/ice_rxtx.c index ed82a84dc5..06f7e85c12 100644 --- a/drivers/net/intel/ice/ice_rxtx.c +++ b/drivers/net/intel/ice/ice_rxtx.c @@ -882,7 +882,7 @@ ice_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id) } /* record what kind of descriptor cleanup we need on teardown */ - txq->vector_tx = ad->tx_vec_allowed; + txq->use_vec_entry = ad->tx_vec_allowed || ad->tx_simple_allowed; if (txq->tsq != NULL && txq->tsq->ts_flag > 0) { struct ice_aqc_set_txtime_qgrp *ts_elem; diff --git a/drivers/net/intel/idpf/idpf_common_rxtx_avx512.c b/drivers/net/intel/idpf/idpf_common_rxtx_avx512.c index 49ace35615..666ad1a4dd 100644 --- a/drivers/net/intel/idpf/idpf_common_rxtx_avx512.c +++ b/drivers/net/intel/idpf/idpf_common_rxtx_avx512.c @@ -1365,6 +1365,6 @@ idpf_qc_tx_vec_avx512_setup(struct ci_tx_queue *txq) if (!txq) return 0; - txq->vector_tx = true; + txq->use_vec_entry = true; return 0; } diff --git a/drivers/net/intel/ixgbe/ixgbe_rxtx_vec_common.c b/drivers/net/intel/ixgbe/ixgbe_rxtx_vec_common.c index 63c7cb50d3..c42b8fc96b 100644 --- a/drivers/net/intel/ixgbe/ixgbe_rxtx_vec_common.c +++ b/drivers/net/intel/ixgbe/ixgbe_rxtx_vec_common.c @@ -111,7 +111,7 @@ ixgbe_txq_vec_setup(struct ci_tx_queue *txq) /* leave the first one for overflow */ txq->sw_ring_vec = txq->sw_ring_vec + 1; txq->ops = &vec_txq_ops; - txq->vector_tx = 1; + txq->use_vec_entry = true; return 0; } -- 2.51.0
