--- /dev/null
+/*-
+ * BSD LICENSE
+ *
+ * Copyright (c) 2016-2017 Solarflare Communications Inc.
+ * All rights reserved.
+ *
+ * This software was jointly developed between OKTET Labs (under contract
+ * for Solarflare) and Solarflare Communications, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _SFC_TX_H
+#define _SFC_TX_H
+
+#include <rte_mbuf.h>
+#include <rte_ethdev.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)
+};
+
+/**
+ * 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;
+ unsigned int free_thresh;
+ unsigned int flags;
+};
+
+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 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;
+};
+
+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);
+
+/* 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 */
Code Review / deb_dpdk.git / blobdiff