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3f86fdf5ce
This commit adds a new command to retrieve the list of available DPIF implementations. This can be used by to check what implementations of the DPIF are available in any given OVS binary. It also returns which implementations are in use by the OVS PMD threads. Usage: $ ovs-appctl dpif-netdev/dpif-impl-get Signed-off-by: Harry van Haaren <harry.van.haaren@intel.com> Co-authored-by: Cian Ferriter <cian.ferriter@intel.com> Signed-off-by: Cian Ferriter <cian.ferriter@intel.com> Acked-by: Flavio Leitner <fbl@sysclose.org> Signed-off-by: Ian Stokes <ian.stokes@intel.com>
80 lines
2.8 KiB
C
80 lines
2.8 KiB
C
/*
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* Copyright (c) 2021 Intel Corporation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef DPIF_NETDEV_PRIVATE_DPIF_H
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#define DPIF_NETDEV_PRIVATE_DPIF_H 1
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#include "openvswitch/types.h"
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/* Forward declarations to avoid including files. */
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struct dp_netdev_pmd_thread;
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struct dp_packet_batch;
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struct ds;
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/* Typedef for DPIF functions.
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* Returns whether all packets were processed successfully.
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*/
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typedef int32_t (*dp_netdev_input_func)(struct dp_netdev_pmd_thread *pmd,
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struct dp_packet_batch *packets,
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odp_port_t port_no);
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/* Probe a DPIF implementation. This allows the implementation to validate CPU
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* ISA availability. Returns -ENOTSUP if not available, returns 0 if valid to
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* use.
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*/
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typedef int32_t (*dp_netdev_input_func_probe)(void);
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/* Structure describing each available DPIF implementation. */
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struct dpif_netdev_impl_info_t {
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/* Function pointer to execute to have this DPIF implementation run. */
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dp_netdev_input_func input_func;
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/* Function pointer to execute to check the CPU ISA is available to run. If
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* not necessary, it must be set to NULL which implies that it is always
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* valid to use. */
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dp_netdev_input_func_probe probe;
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/* Name used to select this DPIF implementation. */
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const char *name;
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};
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/* This function returns all available implementations to the caller. */
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void
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dp_netdev_impl_get(struct ds *reply, struct dp_netdev_pmd_thread **pmd_list,
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size_t n);
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/* Returns the default DPIF which is first ./configure selected, but can be
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* overridden at runtime. */
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dp_netdev_input_func dp_netdev_impl_get_default(void);
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/* Overrides the default DPIF with the user set DPIF. */
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int32_t dp_netdev_impl_set_default_by_name(const char *name);
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/* Available DPIF implementations below. */
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int32_t
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dp_netdev_input(struct dp_netdev_pmd_thread *pmd,
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struct dp_packet_batch *packets,
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odp_port_t in_port);
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/* AVX512 enabled DPIF implementation and probe functions. */
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int32_t
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dp_netdev_input_outer_avx512_probe(void);
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int32_t
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dp_netdev_input_outer_avx512(struct dp_netdev_pmd_thread *pmd,
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struct dp_packet_batch *packets,
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odp_port_t in_port);
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#endif /* netdev-private.h */
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