xref: /dpdk/drivers/net/cnxk/cn20k_tx_select.c (revision ec380d45edaa00b5dc3c38d2a3432c6553ee3e30)

/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright(C) 2024 Marvell.
 */

#include "cn20k_ethdev.h"
#include "cn20k_tx.h"

static __rte_used inline void
pick_tx_func(struct rte_eth_dev *eth_dev, const eth_tx_burst_t tx_burst[NIX_TX_OFFLOAD_MAX])
{
	struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev);

	/* [SEC] [TSP] [TSO] [NOFF] [VLAN] [OL3_OL4_CSUM] [IL3_IL4_CSUM] */
	eth_dev->tx_pkt_burst = tx_burst[dev->tx_offload_flags & (NIX_TX_OFFLOAD_MAX - 1)];

	if (eth_dev->data->dev_started)
		rte_eth_fp_ops[eth_dev->data->port_id].tx_pkt_burst = eth_dev->tx_pkt_burst;
}

#if defined(RTE_ARCH_ARM64)
static int
cn20k_nix_tx_queue_count(void *tx_queue)
{
	struct cn20k_eth_txq *txq = (struct cn20k_eth_txq *)tx_queue;

	return cnxk_nix_tx_queue_count(txq->fc_mem, txq->sqes_per_sqb_log2);
}

static int
cn20k_nix_tx_queue_sec_count(void *tx_queue)
{
	struct cn20k_eth_txq *txq = (struct cn20k_eth_txq *)tx_queue;

	return cnxk_nix_tx_queue_sec_count(txq->fc_mem, txq->sqes_per_sqb_log2, txq->cpt_fc);
}

static void
cn20k_eth_set_tx_tmplt_func(struct rte_eth_dev *eth_dev)
{
#if !defined(CNXK_DIS_TMPLT_FUNC)
	struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev);

	const eth_tx_burst_t nix_eth_tx_burst[NIX_TX_OFFLOAD_MAX] = {
#define T(name, sz, flags) [flags] = cn20k_nix_xmit_pkts_##name,

		NIX_TX_FASTPATH_MODES
#undef T
	};

	const eth_tx_burst_t nix_eth_tx_burst_mseg[NIX_TX_OFFLOAD_MAX] = {
#define T(name, sz, flags) [flags] = cn20k_nix_xmit_pkts_mseg_##name,

		NIX_TX_FASTPATH_MODES
#undef T
	};

	const eth_tx_burst_t nix_eth_tx_vec_burst[NIX_TX_OFFLOAD_MAX] = {
#define T(name, sz, flags) [flags] = cn20k_nix_xmit_pkts_vec_##name,

		NIX_TX_FASTPATH_MODES
#undef T
	};

	const eth_tx_burst_t nix_eth_tx_vec_burst_mseg[NIX_TX_OFFLOAD_MAX] = {
#define T(name, sz, flags) [flags] = cn20k_nix_xmit_pkts_vec_mseg_##name,

		NIX_TX_FASTPATH_MODES
#undef T
	};

	if (dev->scalar_ena || dev->tx_mark) {
		pick_tx_func(eth_dev, nix_eth_tx_burst);
		if (dev->tx_offloads & RTE_ETH_TX_OFFLOAD_MULTI_SEGS)
			pick_tx_func(eth_dev, nix_eth_tx_burst_mseg);
	} else {
		pick_tx_func(eth_dev, nix_eth_tx_vec_burst);
		if (dev->tx_offloads & RTE_ETH_TX_OFFLOAD_MULTI_SEGS)
			pick_tx_func(eth_dev, nix_eth_tx_vec_burst_mseg);
	}
#else
	RTE_SET_USED(eth_dev);
#endif
}

static void
cn20k_eth_set_tx_blk_func(struct rte_eth_dev *eth_dev)
{
#if defined(CNXK_DIS_TMPLT_FUNC)
	struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev);

	if (dev->scalar_ena || dev->tx_mark)
		eth_dev->tx_pkt_burst = cn20k_nix_xmit_pkts_all_offload;
	else
		eth_dev->tx_pkt_burst = cn20k_nix_xmit_pkts_vec_all_offload;

	if (eth_dev->data->dev_started)
		rte_eth_fp_ops[eth_dev->data->port_id].tx_pkt_burst = eth_dev->tx_pkt_burst;
#else
	RTE_SET_USED(eth_dev);
#endif
}
#endif

void
cn20k_eth_set_tx_function(struct rte_eth_dev *eth_dev)
{
#if defined(RTE_ARCH_ARM64)
	struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev);

	cn20k_eth_set_tx_blk_func(eth_dev);
	cn20k_eth_set_tx_tmplt_func(eth_dev);

	if (dev->tx_offloads & RTE_ETH_TX_OFFLOAD_SECURITY)
		eth_dev->tx_queue_count = cn20k_nix_tx_queue_sec_count;
	else
		eth_dev->tx_queue_count = cn20k_nix_tx_queue_count;

	rte_atomic_thread_fence(rte_memory_order_release);
#else
	RTE_SET_USED(eth_dev);
#endif
}