numam-dpdk/drivers/net/sfc/sfc_tx.h
Andrew Rybchenko b57870f2ab net/sfc: avoid usage of TxQ control structure in info get
TxQ control structure contains primary process only data and will become
primary process only. TxQ info get is supported in secondary process.

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
2019-02-07 16:06:30 +01:00

149 lines
3.8 KiB
C

/* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2016-2018 Solarflare Communications Inc.
* All rights reserved.
*
* This software was jointly developed between OKTET Labs (under contract
* for Solarflare) and Solarflare Communications, Inc.
*/
#ifndef _SFC_TX_H
#define _SFC_TX_H
#include <rte_mbuf.h>
#include <rte_ethdev_driver.h>
#include "efx.h"
#include "sfc_dp_tx.h"
#ifdef __cplusplus
extern "C" {
#endif
struct sfc_adapter;
struct sfc_evq;
/**
* Software Tx descriptor information associated with hardware Tx
* descriptor.
*/
struct sfc_efx_tx_sw_desc {
struct rte_mbuf *mbuf;
uint8_t *tsoh; /* Buffer to store TSO header */
};
enum sfc_txq_state_bit {
SFC_TXQ_INITIALIZED_BIT = 0,
#define SFC_TXQ_INITIALIZED (1 << SFC_TXQ_INITIALIZED_BIT)
SFC_TXQ_STARTED_BIT,
#define SFC_TXQ_STARTED (1 << SFC_TXQ_STARTED_BIT)
SFC_TXQ_FLUSHING_BIT,
#define SFC_TXQ_FLUSHING (1 << SFC_TXQ_FLUSHING_BIT)
SFC_TXQ_FLUSHED_BIT,
#define SFC_TXQ_FLUSHED (1 << SFC_TXQ_FLUSHED_BIT)
SFC_TXQ_FLUSH_FAILED_BIT,
#define SFC_TXQ_FLUSH_FAILED (1 << SFC_TXQ_FLUSH_FAILED_BIT)
};
/**
* Transmit queue control information. Not used on datapath.
* Allocated on the socket specified on the queue setup.
*/
struct sfc_txq {
unsigned int state;
unsigned int hw_index;
struct sfc_evq *evq;
efsys_mem_t mem;
struct sfc_dp_txq *dp;
efx_txq_t *common;
};
static inline unsigned int
sfc_txq_sw_index_by_hw_index(unsigned int hw_index)
{
return hw_index;
}
static inline unsigned int
sfc_txq_sw_index(const struct sfc_txq *txq)
{
return sfc_txq_sw_index_by_hw_index(txq->hw_index);
}
struct sfc_txq *sfc_txq_by_dp_txq(const struct sfc_dp_txq *dp_txq);
/**
* Transmit queue information used on libefx-based data path.
* Allocated on the socket specified on the queue setup.
*/
struct sfc_efx_txq {
struct sfc_evq *evq;
struct sfc_efx_tx_sw_desc *sw_ring;
unsigned int ptr_mask;
efx_desc_t *pend_desc;
efx_txq_t *common;
unsigned int added;
unsigned int pending;
unsigned int completed;
unsigned int max_fill_level;
unsigned int free_thresh;
uint16_t hw_vlan_tci;
uint16_t dma_desc_size_max;
unsigned int hw_index;
unsigned int flags;
#define SFC_EFX_TXQ_FLAG_STARTED 0x1
#define SFC_EFX_TXQ_FLAG_RUNNING 0x2
/* Datapath transmit queue anchor */
struct sfc_dp_txq dp;
};
static inline struct sfc_efx_txq *
sfc_efx_txq_by_dp_txq(struct sfc_dp_txq *dp_txq)
{
return container_of(dp_txq, struct sfc_efx_txq, dp);
}
struct sfc_txq_info {
unsigned int entries;
struct sfc_txq *txq;
boolean_t deferred_start;
boolean_t deferred_started;
unsigned int free_thresh;
uint64_t offloads;
};
int sfc_tx_configure(struct sfc_adapter *sa);
void sfc_tx_close(struct sfc_adapter *sa);
int sfc_tx_qinit(struct sfc_adapter *sa, unsigned int sw_index,
uint16_t nb_tx_desc, unsigned int socket_id,
const struct rte_eth_txconf *tx_conf);
void sfc_tx_qfini(struct sfc_adapter *sa, unsigned int sw_index);
void sfc_tx_qflush_done(struct sfc_txq *txq);
int sfc_tx_qstart(struct sfc_adapter *sa, unsigned int sw_index);
void sfc_tx_qstop(struct sfc_adapter *sa, unsigned int sw_index);
int sfc_tx_start(struct sfc_adapter *sa);
void sfc_tx_stop(struct sfc_adapter *sa);
uint64_t sfc_tx_get_dev_offload_caps(struct sfc_adapter *sa);
uint64_t sfc_tx_get_queue_offload_caps(struct sfc_adapter *sa);
/* From 'sfc_tso.c' */
int sfc_efx_tso_alloc_tsoh_objs(struct sfc_efx_tx_sw_desc *sw_ring,
unsigned int txq_entries,
unsigned int socket_id);
void sfc_efx_tso_free_tsoh_objs(struct sfc_efx_tx_sw_desc *sw_ring,
unsigned int txq_entries);
int sfc_efx_tso_do(struct sfc_efx_txq *txq, unsigned int idx,
struct rte_mbuf **in_seg, size_t *in_off, efx_desc_t **pend,
unsigned int *pkt_descs, size_t *pkt_len);
#ifdef __cplusplus
}
#endif
#endif /* _SFC_TX_H */