024e87bef4
Until now, UDP RSS support could not be relied on due to a problem in the Linux kernel implementation and mlx4 RSS capabilities were not reported at all, hence the PMD had to make assumptions. Since both issues will be addressed simultaneously in Linux 4.15 (related patches already upstream) and likely backported afterward, UDP RSS support can be enabled by probing RSS capabilities. Signed-off-by: Adrien Mazarguil <adrien.mazarguil@6wind.com> Acked-by: Neil Horman <nhorman@tuxdriver.com>
87 lines
3.4 KiB
C
87 lines
3.4 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright 2017 6WIND S.A.
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* Copyright 2017 Mellanox
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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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* * 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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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of 6WIND S.A. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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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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#ifndef RTE_PMD_MLX4_FLOW_H_
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#define RTE_PMD_MLX4_FLOW_H_
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#include <stdint.h>
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#include <sys/queue.h>
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/* Verbs headers do not support -pedantic. */
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#ifdef PEDANTIC
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#pragma GCC diagnostic ignored "-Wpedantic"
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#endif
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#include <infiniband/verbs.h>
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#ifdef PEDANTIC
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#pragma GCC diagnostic error "-Wpedantic"
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#endif
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#include <rte_eth_ctrl.h>
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#include <rte_ethdev.h>
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#include <rte_flow.h>
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#include <rte_flow_driver.h>
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#include <rte_byteorder.h>
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/** Last and lowest priority level for a flow rule. */
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#define MLX4_FLOW_PRIORITY_LAST UINT32_C(0xfff)
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/** Meta pattern item used to distinguish internal rules. */
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#define MLX4_FLOW_ITEM_TYPE_INTERNAL ((enum rte_flow_item_type)-1)
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/** PMD-specific (mlx4) definition of a flow rule handle. */
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struct rte_flow {
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LIST_ENTRY(rte_flow) next; /**< Pointer to the next flow structure. */
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struct ibv_flow *ibv_flow; /**< Verbs flow. */
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struct ibv_flow_attr *ibv_attr; /**< Pointer to Verbs attributes. */
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uint32_t ibv_attr_size; /**< Size of Verbs attributes. */
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uint32_t select:1; /**< Used by operations on the linked list. */
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uint32_t internal:1; /**< Internal flow rule outside isolated mode. */
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uint32_t mac:1; /**< Rule associated with a configured MAC address. */
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uint32_t promisc:1; /**< This rule matches everything. */
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uint32_t allmulti:1; /**< This rule matches all multicast traffic. */
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uint32_t drop:1; /**< This rule drops packets. */
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struct mlx4_rss *rss; /**< Rx target. */
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};
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/* mlx4_flow.c */
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uint64_t mlx4_conv_rss_hf(struct priv *priv, uint64_t rss_hf);
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int mlx4_flow_sync(struct priv *priv, struct rte_flow_error *error);
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void mlx4_flow_clean(struct priv *priv);
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int mlx4_filter_ctrl(struct rte_eth_dev *dev,
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enum rte_filter_type filter_type,
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enum rte_filter_op filter_op,
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void *arg);
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#endif /* RTE_PMD_MLX4_FLOW_H_ */
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