2bbef9d95d
ena_tx_csum function did not check if IPv6 checksum offload was requested it only checked checksum offloading flags for IPv4 packets. Because of that, when encountering CSUM_IP6_* flags, the function simply returned without actually setting checksum offloading in ena_ctx. Check CUSM_IP6_* flags to enable IPv6 checksum offload. Additionally, only IPv4 header was being parsed regardless of EtherType field, because of that, value of L4 protocol read when actually trying to send IPv6 packets was wrong. Use ip6_lasthdr function to get length of all IPv6 headers and payload protocol. Set the DF flag to 1 in order to allow the device to offload the IPv6 checksum calculation and achieve optimal performance. Add CSUM6_OFFLOAD and CSUM_OFFLOAD definitions into ena_datapath.h. Submitted by: Dawid Gorecki <dgr@semihalf.com> Obtained from: Semihalf MFC after: 2 weeks Sponsored by: Amazon, Inc.
46 lines
1.8 KiB
C
46 lines
1.8 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2015-2020 Amazon.com, Inc. or its affiliates.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*
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*/
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#ifndef ENA_TXRX_H
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#define ENA_TXRX_H
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void ena_cleanup(void *arg, int pending);
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void ena_qflush(if_t ifp);
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int ena_mq_start(if_t ifp, struct mbuf *m);
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void ena_deferred_mq_start(void *arg, int pending);
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#define CSUM_OFFLOAD (CSUM_IP|CSUM_TCP|CSUM_UDP)
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#define CSUM6_OFFLOAD (CSUM_IP6_UDP|CSUM_IP6_TCP)
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#endif /* ENA_TXRX_H */
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