1 /* SPDX-License-Identifier: BSD-3-Clause
3 * Copyright(c) 2019-2020 Xilinx, Inc.
4 * Copyright(c) 2016-2019 Solarflare Communications Inc.
6 * This software was jointly developed between OKTET Labs (under contract
7 * for Solarflare) and Solarflare Communications, Inc.
14 #include <rte_ethdev_driver.h>
18 #include "sfc_dp_tx.h"
28 * Software Tx descriptor information associated with hardware Tx
31 struct sfc_efx_tx_sw_desc {
32 struct rte_mbuf *mbuf;
33 uint8_t *tsoh; /* Buffer to store TSO header */
36 enum sfc_txq_state_bit {
37 SFC_TXQ_INITIALIZED_BIT = 0,
38 #define SFC_TXQ_INITIALIZED (1 << SFC_TXQ_INITIALIZED_BIT)
40 #define SFC_TXQ_STARTED (1 << SFC_TXQ_STARTED_BIT)
42 #define SFC_TXQ_FLUSHING (1 << SFC_TXQ_FLUSHING_BIT)
44 #define SFC_TXQ_FLUSHED (1 << SFC_TXQ_FLUSHED_BIT)
45 SFC_TXQ_FLUSH_FAILED_BIT,
46 #define SFC_TXQ_FLUSH_FAILED (1 << SFC_TXQ_FLUSH_FAILED_BIT)
50 * Transmit queue control primary process-only information.
51 * Not used on datapath.
54 unsigned int hw_index;
60 struct sfc_txq *sfc_txq_by_dp_txq(const struct sfc_dp_txq *dp_txq);
63 * Transmit queue information used on libefx-based data path.
64 * Allocated on the socket specified on the queue setup.
68 struct sfc_efx_tx_sw_desc *sw_ring;
69 unsigned int ptr_mask;
70 efx_desc_t *pend_desc;
74 unsigned int completed;
75 unsigned int max_fill_level;
76 unsigned int free_thresh;
78 uint16_t dma_desc_size_max;
80 unsigned int hw_index;
82 #define SFC_EFX_TXQ_FLAG_STARTED 0x1
83 #define SFC_EFX_TXQ_FLAG_RUNNING 0x2
85 /* Datapath transmit queue anchor */
89 static inline struct sfc_efx_txq *
90 sfc_efx_txq_by_dp_txq(struct sfc_dp_txq *dp_txq)
92 return container_of(dp_txq, struct sfc_efx_txq, dp);
98 struct sfc_dp_txq *dp;
99 boolean_t deferred_start;
100 boolean_t deferred_started;
101 unsigned int free_thresh;
105 struct sfc_txq_info *sfc_txq_info_by_dp_txq(const struct sfc_dp_txq *dp_txq);
107 int sfc_tx_configure(struct sfc_adapter *sa);
108 void sfc_tx_close(struct sfc_adapter *sa);
110 int sfc_tx_qinit(struct sfc_adapter *sa, unsigned int sw_index,
111 uint16_t nb_tx_desc, unsigned int socket_id,
112 const struct rte_eth_txconf *tx_conf);
113 void sfc_tx_qfini(struct sfc_adapter *sa, unsigned int sw_index);
115 void sfc_tx_qflush_done(struct sfc_txq_info *txq_info);
116 int sfc_tx_qstart(struct sfc_adapter *sa, unsigned int sw_index);
117 void sfc_tx_qstop(struct sfc_adapter *sa, unsigned int sw_index);
118 int sfc_tx_start(struct sfc_adapter *sa);
119 void sfc_tx_stop(struct sfc_adapter *sa);
121 uint64_t sfc_tx_get_dev_offload_caps(struct sfc_adapter *sa);
122 uint64_t sfc_tx_get_queue_offload_caps(struct sfc_adapter *sa);
124 /* From 'sfc_tso.c' */
125 int sfc_efx_tso_alloc_tsoh_objs(struct sfc_efx_tx_sw_desc *sw_ring,
126 unsigned int txq_entries,
127 unsigned int socket_id);
128 void sfc_efx_tso_free_tsoh_objs(struct sfc_efx_tx_sw_desc *sw_ring,
129 unsigned int txq_entries);
130 int sfc_efx_tso_do(struct sfc_efx_txq *txq, unsigned int idx,
131 struct rte_mbuf **in_seg, size_t *in_off, efx_desc_t **pend,
132 unsigned int *pkt_descs, size_t *pkt_len);
137 #endif /* _SFC_TX_H */