linux/drivers/net/ethernet/netronome/nfp/nfd3/rings.c

// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
/* Copyright (C) 2015-2019 Netronome Systems, Inc. */

#include <linux/seq_file.h>

#include "../nfp_net.h"
#include "../nfp_net_dp.h"
#include "../nfp_net_xsk.h"
#include "nfd3.h"

static void nfp_nfd3_xsk_tx_bufs_free(struct nfp_net_tx_ring *tx_ring)
{ … }

/**
 * nfp_nfd3_tx_ring_reset() - Free any untransmitted buffers and reset pointers
 * @dp:		NFP Net data path struct
 * @tx_ring:	TX ring structure
 *
 * Assumes that the device is stopped, must be idempotent.
 */
static void
nfp_nfd3_tx_ring_reset(struct nfp_net_dp *dp, struct nfp_net_tx_ring *tx_ring)
{ … }

/**
 * nfp_nfd3_tx_ring_free() - Free resources allocated to a TX ring
 * @tx_ring:   TX ring to free
 */
static void nfp_nfd3_tx_ring_free(struct nfp_net_tx_ring *tx_ring)
{ … }

/**
 * nfp_nfd3_tx_ring_alloc() - Allocate resource for a TX ring
 * @dp:        NFP Net data path struct
 * @tx_ring:   TX Ring structure to allocate
 *
 * Return: 0 on success, negative errno otherwise.
 */
static int
nfp_nfd3_tx_ring_alloc(struct nfp_net_dp *dp, struct nfp_net_tx_ring *tx_ring)
{ … }

static void
nfp_nfd3_tx_ring_bufs_free(struct nfp_net_dp *dp,
			   struct nfp_net_tx_ring *tx_ring)
{ … }

static int
nfp_nfd3_tx_ring_bufs_alloc(struct nfp_net_dp *dp,
			    struct nfp_net_tx_ring *tx_ring)
{ … }

static void
nfp_nfd3_print_tx_descs(struct seq_file *file,
			struct nfp_net_r_vector *r_vec,
			struct nfp_net_tx_ring *tx_ring,
			u32 d_rd_p, u32 d_wr_p)
{ … }

#define NFP_NFD3_CFG_CTRL_SUPPORTED …

const struct nfp_dp_ops nfp_nfd3_ops = …;