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ena: change ENA C++-style comment into C-style According to man style(9), only C-style comments should be used. Submitted by: Michal Krawczyk <mk@semihalf.com> Obtained from: Semihalf MFC after: 2 weeks Sponsored by: Amazon, Inc. (cherry picked from commit438c9e3cf8) ena: add support for the large LLQ headers in ENA Default LLQ (Low-latency queue) maximum header size is 96 bytes and can be too small for some types of packets - like IPv6 packets with multiple extension. This can be fixed, by using large LLQ headers. If the device supports larger LLQ headers, the user can activate this feature by setting sysctl tunable 'hw.ena.force_large_llq_header' to '1' in the /boot/loader.conf file. In case the device isn't supporting this feature, the default value (96B) will be used. Submitted by: Michal Krawczyk <mk@semihalf.com> Obtained from: Semihalf MFC after: 2 weeks Sponsored by: Amazon, Inc. (cherry picked from commitbeaadec9ea) ena: remove surplus NULL checks when freeing ENA resources Calling free on a NULL pointer is valid, as appropriate check is already done internally: /* free(NULL, ...) does nothing */ if (addr == NULL) return; Submitted by: Artur Rojek <ar@semihalf.com> Obtained from: Semihalf MFC after: 2 weeks Sponsored by: Amazon, Inc. (cherry picked from commitddec69e6a7) ena: hide sysctl nodes for unused ENA queues IO queue related attributes are registered statically at driver attach with the rest of the ENA specific sysctl nodes. However, the number of queues can be changed at runtime via the `ena_sysctl_io_queues_nb` request, leading to a potential exposure of attributes for non-existing queues. Introduce a new `ena_sysctl_update_queue_node_nb` function, which updates the sysctl nodes after the number of queues is altered. This happens by either registering or unregistering node specific oids, based on a delta between the previous and current queue count. NOTE: All unregistered oids must be registered again before the driver detach, e.g. by another call to this function. Submitted by: Artur Rojek <ar@semihalf.com> Obtained from: Semihalf MFC after: 2 weeks Sponsored by: Amazon, Inc. (cherry picked from commit0e7d31f63b) Merge tag 'vendor/ena-com/2.4.0' Update the driver in order not to break its compilation and make use of the new ENA logging system Migrate platform code to the new logging system provided by ena_com layer. Make ENA_INFO the new default log level. Remove all explicit use of `device_printf`, all new logs requiring one of the log macros to be used. (cherry picked from commit3fc5d816f8) Update ENA driver man page Bring the obsolete man page up to date: * update diagnostic error messages * add documentation of loader tunables * document netmap support * add a driver history section * update the contact information Submitted by: Artur Rojek <ar@semihalf.com> Submitted by: Michal Krawczyk <mk@semihalf.com> Obtained from: Semihalf MFC after: 2 weeks Sponsored by: Amazon, Inc. (cherry picked from commite34856a2c4) Update ENA version to v2.4.0 Some of the changes in this release: * Large LLQ headers, * Bug/stability fixes, * Change of the README/Documentation. Submitted by: Michal Krawczyk <mk@semihalf.com> Obtained from: Semihalf MFC after: 2 weeks Sponsored by: Amazon, Inc. (cherry picked from commit93f0df457b)
52 lines
1.9 KiB
C
52 lines
1.9 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2015-2021 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_SYSCTL_H
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#define ENA_SYSCTL_H
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#include <sys/types.h>
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#include <sys/sysctl.h>
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#include "ena.h"
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void ena_sysctl_add_nodes(struct ena_adapter *adapter);
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void ena_sysctl_update_queue_node_nb(struct ena_adapter *adapter, int old,
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int new);
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extern int ena_enable_9k_mbufs;
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#define ena_mbuf_sz (ena_enable_9k_mbufs ? MJUM9BYTES : MJUMPAGESIZE)
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/* Force the driver to use large LLQ (Low Latency Queue) headers. */
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extern bool ena_force_large_llq_header;
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#endif /* !(ENA_SYSCTL_H) */
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