-/*-
- * 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"
+#include "sfc_debug.h"
#ifdef __cplusplus
extern "C" {
struct sfc_dp_queue dpq;
};
+/** Datapath transmit queue descriptor number limitations */
+struct sfc_dp_tx_hw_limits {
+ unsigned int txq_max_entries;
+ unsigned int txq_min_entries;
+};
+
/**
* Datapath transmit queue creation information.
*
* 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 */
unsigned int hw_index;
/** Virtual address of the memory-mapped BAR to push Tx doorbell */
volatile void *mem_bar;
+ /** VI window size shift */
+ unsigned int vi_window_shift;
+ /**
+ * Maximum number of bytes into the packet the TCP header can start for
+ * the hardware to apply TSO packet edits.
+ */
+ uint16_t tso_tcp_header_offset_limit;
};
+/**
+ * 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,
+ struct sfc_dp_tx_hw_limits *limits,
+ unsigned int *txq_entries,
+ unsigned int *evq_entries,
+ unsigned int *txq_max_fill_level);
+
/**
* Allocate and initialize datapath transmit queue.
*
#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_qtx_ev_t *qtx_ev;
sfc_dp_tx_qreap_t *qreap;
sfc_dp_tx_qdesc_status_t *qdesc_status;
+ eth_tx_prep_t pkt_prepare;
eth_tx_burst_t pkt_burst;
};
return (p == NULL) ? NULL : container_of(p, struct sfc_dp_tx, dp);
}
+/** Get Tx datapath ops by the datapath TxQ handle */
+const struct sfc_dp_tx *sfc_dp_tx_by_dp_txq(const struct sfc_dp_txq *dp_txq);
+
+static inline int
+sfc_dp_tx_prepare_pkt(struct rte_mbuf *m)
+{
+#ifdef RTE_LIBRTE_SFC_EFX_DEBUG
+ int ret;
+
+ ret = rte_validate_tx_offload(m);
+ if (ret != 0) {
+ /*
+ * Negative error code is returned by rte_validate_tx_offload(),
+ * but positive are used inside net/sfc PMD.
+ */
+ SFC_ASSERT(ret < 0);
+ return -ret;
+ }
+#else
+ RTE_SET_USED(m);
+#endif
+
+ return 0;
+}
+
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;
git.droids-corp.org / dpdk.git / blobdiff