-/*-
- * BSD LICENSE
+/* SPDX-License-Identifier: BSD-3-Clause
*
- * Copyright (c) 2016 Solarflare Communications Inc.
+ * 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.
- *
- * 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_DP_TX_H
#define _SFC_DP_TX_H
-#include <rte_ethdev.h>
+#include <rte_ethdev_driver.h>
#include "sfc_dp.h"
* readable.
*/
struct sfc_dp_tx_qcreate_info {
+ /** Maximum number of pushed Tx descriptors */
+ unsigned int max_fill_level;
/** Minimum number of unused Tx descriptors to do reap */
unsigned int free_thresh;
/** Transmit queue configuration flags */
unsigned int flags;
+ /** Offloads enabled on the transmit queue */
+ uint64_t offloads;
/** Tx queue size */
unsigned int txq_entries;
/** Maximum size of data in the DMA descriptor */
uint16_t dma_desc_size_max;
+ /** DMA-mapped Tx descriptors ring */
+ void *txq_hw_ring;
+ /** Associated event queue size */
+ unsigned int evq_entries;
+ /** Hardware event ring */
+ void *evq_hw_ring;
+ /** The queue index in hardware (required to push right doorbell) */
+ unsigned int hw_index;
+ /** Virtual address of the memory-mapped BAR to push Tx doorbell */
+ volatile void *mem_bar;
};
+/**
+ * Get Tx datapath specific device info.
+ *
+ * @param dev_info Device info to be adjusted
+ */
+typedef void (sfc_dp_tx_get_dev_info_t)(struct rte_eth_dev_info *dev_info);
+
+/**
+ * Get size of transmit and event queue rings by the number of Tx
+ * descriptors.
+ *
+ * @param nb_tx_desc Number of Tx descriptors
+ * @param txq_entries Location for number of Tx ring entries
+ * @param evq_entries Location for number of event ring entries
+ * @param txq_max_fill_level Location for maximum Tx ring fill level
+ *
+ * @return 0 or positive errno.
+ */
+typedef int (sfc_dp_tx_qsize_up_rings_t)(uint16_t nb_tx_desc,
+ unsigned int *txq_entries,
+ unsigned int *evq_entries,
+ unsigned int *txq_max_fill_level);
+
/**
* Allocate and initialize datapath transmit queue.
*
typedef void (sfc_dp_tx_qstop_t)(struct sfc_dp_txq *dp_txq,
unsigned int *evq_read_ptr);
+/**
+ * Transmit event handler used during queue flush only.
+ */
+typedef bool (sfc_dp_tx_qtx_ev_t)(struct sfc_dp_txq *dp_txq, unsigned int id);
+
/**
* Transmit queue function called after the queue flush.
*/
typedef void (sfc_dp_tx_qreap_t)(struct sfc_dp_txq *dp_txq);
+/**
+ * Check Tx descriptor status
+ */
+typedef int (sfc_dp_tx_qdesc_status_t)(struct sfc_dp_txq *dp_txq,
+ uint16_t offset);
+
/** Transmit datapath definition */
struct sfc_dp_tx {
struct sfc_dp dp;
unsigned int features;
#define SFC_DP_TX_FEAT_VLAN_INSERT 0x1
+#define SFC_DP_TX_FEAT_TSO 0x2
+#define SFC_DP_TX_FEAT_MULTI_SEG 0x4
+#define SFC_DP_TX_FEAT_MULTI_PROCESS 0x8
+#define SFC_DP_TX_FEAT_MULTI_POOL 0x10
+#define SFC_DP_TX_FEAT_REFCNT 0x20
+ sfc_dp_tx_get_dev_info_t *get_dev_info;
+ sfc_dp_tx_qsize_up_rings_t *qsize_up_rings;
sfc_dp_tx_qcreate_t *qcreate;
sfc_dp_tx_qdestroy_t *qdestroy;
sfc_dp_tx_qstart_t *qstart;
sfc_dp_tx_qstop_t *qstop;
+ sfc_dp_tx_qtx_ev_t *qtx_ev;
sfc_dp_tx_qreap_t *qreap;
+ sfc_dp_tx_qdesc_status_t *qdesc_status;
eth_tx_burst_t pkt_burst;
};
}
extern struct sfc_dp_tx sfc_efx_tx;
+extern struct sfc_dp_tx sfc_ef10_tx;
+extern struct sfc_dp_tx sfc_ef10_simple_tx;
#ifdef __cplusplus
}