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/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2015-2021 Amazon.com, Inc. or its affiliates.
* All rights reserved.
*
* 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 ENA_RSS_H
#define ENA_RSS_H
#include "opt_rss.h"
#include <sys/types.h>
#ifdef RSS
#include <net/rss_config.h>
#endif
#include "ena.h"
#define ENA_RX_RSS_MSG_RECORD_SZ 8
struct ena_indir {
uint32_t table[ENA_RX_RSS_TABLE_SIZE];
/* This is the buffer wired to `rss.indir_table` sysctl. */
char sysctl_buf[ENA_RX_RSS_TABLE_SIZE * ENA_RX_RSS_MSG_RECORD_SZ];
};
int ena_rss_set_hash(struct ena_com_dev *ena_dev, const u8 *key);
int ena_rss_get_hash_key(struct ena_com_dev *ena_dev, u8 *key);
int ena_rss_configure(struct ena_adapter *);
int ena_rss_indir_get(struct ena_adapter *adapter, uint32_t *table);
int ena_rss_indir_set(struct ena_adapter *adapter, uint32_t *table);
int ena_rss_indir_init(struct ena_adapter *adapter);
static inline void
ena_rss_copy_indir_buf(char *buf, uint32_t *table)
{
int i;
for (i = 0; i < ENA_RX_RSS_TABLE_SIZE; ++i) {
buf += snprintf(buf, ENA_RX_RSS_MSG_RECORD_SZ + 1, "%s%d:%d",
i == 0 ? "" : " ", i, table[i]);
}
}
#endif /* !(ENA_RSS_H) */
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