linux/drivers/net/ethernet/marvell/octeon_ep/octep_tx.c

// SPDX-License-Identifier: GPL-2.0
/* Marvell Octeon EP (EndPoint) Ethernet Driver
 *
 * Copyright (C) 2020 Marvell.
 *
 */

#include <linux/pci.h>
#include <linux/etherdevice.h>
#include <linux/vmalloc.h>

#include "octep_config.h"
#include "octep_main.h"

/* Reset various index of Tx queue data structure. */
static void octep_iq_reset_indices(struct octep_iq *iq)
{ … }

/**
 * octep_iq_process_completions() - Process Tx queue completions.
 *
 * @iq: Octeon Tx queue data structure.
 * @budget: max number of completions to be processed in one invocation.
 */
int octep_iq_process_completions(struct octep_iq *iq, u16 budget)
{ … }

/**
 * octep_iq_free_pending() - Free Tx buffers for pending completions.
 *
 * @iq: Octeon Tx queue data structure.
 */
static void octep_iq_free_pending(struct octep_iq *iq)
{ … }

/**
 * octep_clean_iqs()  - Clean Tx queues to shutdown the device.
 *
 * @oct: Octeon device private data structure.
 *
 * Free the buffers in Tx queue descriptors pending completion and
 * reset queue indices
 */
void octep_clean_iqs(struct octep_device *oct)
{ … }

/**
 * octep_setup_iq() - Setup a Tx queue.
 *
 * @oct: Octeon device private data structure.
 * @q_no: Tx queue number to be setup.
 *
 * Allocate resources for a Tx queue.
 */
static int octep_setup_iq(struct octep_device *oct, int q_no)
{ … }

/**
 * octep_free_iq() - Free Tx queue resources.
 *
 * @iq: Octeon Tx queue data structure.
 *
 * Free all the resources allocated for a Tx queue.
 */
static void octep_free_iq(struct octep_iq *iq)
{ … }

/**
 * octep_setup_iqs() - setup resources for all Tx queues.
 *
 * @oct: Octeon device private data structure.
 */
int octep_setup_iqs(struct octep_device *oct)
{ … }

/**
 * octep_free_iqs() - Free resources of all Tx queues.
 *
 * @oct: Octeon device private data structure.
 */
void octep_free_iqs(struct octep_device *oct)
{ … }