net/sfc/base: pass Rx buffer size to RxQ init if supported

[dpdk.git] / drivers / net / sfc / sfc_dp_tx.h

diff --git a/drivers/net/sfc/sfc_dp_tx.h b/drivers/net/sfc/sfc_dp_tx.h
index a384a53..9cb2198 100644 (file)
--- a/drivers/net/sfc/sfc_dp_tx.h
+++ b/drivers/net/sfc/sfc_dp_tx.h
@@ -1,38 +1,16 @@
-/*-
- *   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"
 
@@ -49,6 +27,12 @@ struct sfc_dp_txq {
        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.
  *
@@ -61,8 +45,8 @@ struct sfc_dp_tx_qcreate_info {
        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 */
@@ -77,6 +61,13 @@ struct sfc_dp_tx_qcreate_info {
        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;
 };
 
 /**
@@ -98,6 +89,7 @@ typedef void (sfc_dp_tx_get_dev_info_t)(struct rte_eth_dev_info *dev_info);
  * @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);
@@ -197,6 +189,9 @@ sfc_dp_find_tx_by_caps(struct sfc_dp_list *head, unsigned int avail_caps)
        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);
+
 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;