922a5466c1
If dpdk is run with memory only available on socket != 0, then hash creation will fail and flow director feature won't be available. Fix this by asking for allocation on caller socket. Signed-off-by: David Marchand <david.marchand@6wind.com> Acked by: Sujith Sankar <ssujith@cisco.com>
256 lines
6.8 KiB
C
256 lines
6.8 KiB
C
/*
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* Copyright 2008-2014 Cisco Systems, Inc. All rights reserved.
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* Copyright 2007 Nuova Systems, Inc. All rights reserved.
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*
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* Copyright (c) 2014, Cisco Systems, Inc.
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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
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* the documentation and/or other materials provided with the
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* 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
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include <libgen.h>
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#include <rte_ethdev.h>
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#include <rte_malloc.h>
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#include <rte_hash.h>
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#include <rte_byteorder.h>
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#include "enic_compat.h"
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#include "enic.h"
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#include "wq_enet_desc.h"
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#include "rq_enet_desc.h"
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#include "cq_enet_desc.h"
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#include "vnic_enet.h"
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#include "vnic_dev.h"
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#include "vnic_wq.h"
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#include "vnic_rq.h"
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#include "vnic_cq.h"
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#include "vnic_intr.h"
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#include "vnic_nic.h"
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#ifdef RTE_MACHINE_CPUFLAG_SSE4_2
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#include <rte_hash_crc.h>
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#define DEFAULT_HASH_FUNC rte_hash_crc
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#else
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#include <rte_jhash.h>
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#define DEFAULT_HASH_FUNC rte_jhash
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#endif
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#define ENICPMD_CLSF_HASH_ENTRIES ENICPMD_FDIR_MAX
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void enic_fdir_stats_get(struct enic *enic, struct rte_eth_fdir_stats *stats)
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{
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*stats = enic->fdir.stats;
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}
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int enic_fdir_del_fltr(struct enic *enic, struct rte_eth_fdir_filter *params)
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{
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int32_t pos;
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struct enic_fdir_node *key;
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/* See if the key is in the table */
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pos = rte_hash_del_key(enic->fdir.hash, params);
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switch (pos) {
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case -EINVAL:
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case -ENOENT:
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enic->fdir.stats.f_remove++;
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return -EINVAL;
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default:
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/* The entry is present in the table */
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key = enic->fdir.nodes[pos];
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/* Delete the filter */
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vnic_dev_classifier(enic->vdev, CLSF_DEL,
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&key->fltr_id, NULL);
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rte_free(key);
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enic->fdir.nodes[pos] = NULL;
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enic->fdir.stats.free++;
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enic->fdir.stats.remove++;
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break;
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}
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return 0;
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}
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int enic_fdir_add_fltr(struct enic *enic, struct rte_eth_fdir_filter *params)
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{
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struct enic_fdir_node *key;
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struct filter fltr = {0};
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int32_t pos;
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u8 do_free = 0;
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u16 old_fltr_id = 0;
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u32 flowtype_supported;
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u16 flex_bytes;
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u16 queue;
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flowtype_supported = (
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(RTE_ETH_FLOW_NONFRAG_IPV4_TCP == params->input.flow_type) ||
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(RTE_ETH_FLOW_NONFRAG_IPV4_UDP == params->input.flow_type));
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flex_bytes = ((params->input.flow_ext.flexbytes[1] << 8 & 0xFF00) |
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(params->input.flow_ext.flexbytes[0] & 0xFF));
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if (!enic->fdir.hash ||
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(params->input.flow_ext.vlan_tci & 0xFFF) ||
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!flowtype_supported || flex_bytes ||
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params->action.behavior /* drop */) {
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enic->fdir.stats.f_add++;
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return -ENOTSUP;
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}
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queue = params->action.rx_queue;
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/* See if the key is already there in the table */
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pos = rte_hash_del_key(enic->fdir.hash, params);
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switch (pos) {
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case -EINVAL:
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enic->fdir.stats.f_add++;
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return -EINVAL;
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case -ENOENT:
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/* Add a new classifier entry */
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if (!enic->fdir.stats.free) {
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enic->fdir.stats.f_add++;
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return -ENOSPC;
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}
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key = rte_zmalloc("enic_fdir_node",
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sizeof(struct enic_fdir_node), 0);
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if (!key) {
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enic->fdir.stats.f_add++;
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return -ENOMEM;
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}
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break;
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default:
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/* The entry is already present in the table.
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* Check if there is a change in queue
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*/
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key = enic->fdir.nodes[pos];
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enic->fdir.nodes[pos] = NULL;
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if (unlikely(key->rq_index == queue)) {
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/* Nothing to be done */
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pos = rte_hash_add_key(enic->fdir.hash, params);
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enic->fdir.nodes[pos] = key;
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enic->fdir.stats.f_add++;
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dev_warning(enic,
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"FDIR rule is already present\n");
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return 0;
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}
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if (likely(enic->fdir.stats.free)) {
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/* Add the filter and then delete the old one.
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* This is to avoid packets from going into the
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* default queue during the window between
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* delete and add
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*/
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do_free = 1;
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old_fltr_id = key->fltr_id;
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} else {
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/* No free slots in the classifier.
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* Delete the filter and add the modified one later
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*/
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vnic_dev_classifier(enic->vdev, CLSF_DEL,
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&key->fltr_id, NULL);
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enic->fdir.stats.free++;
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}
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break;
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}
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key->filter = *params;
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key->rq_index = queue;
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fltr.type = FILTER_IPV4_5TUPLE;
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fltr.u.ipv4.src_addr = rte_be_to_cpu_32(
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params->input.flow.ip4_flow.src_ip);
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fltr.u.ipv4.dst_addr = rte_be_to_cpu_32(
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params->input.flow.ip4_flow.dst_ip);
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fltr.u.ipv4.src_port = rte_be_to_cpu_16(
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params->input.flow.udp4_flow.src_port);
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fltr.u.ipv4.dst_port = rte_be_to_cpu_16(
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params->input.flow.udp4_flow.dst_port);
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if (RTE_ETH_FLOW_NONFRAG_IPV4_TCP == params->input.flow_type)
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fltr.u.ipv4.protocol = PROTO_TCP;
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else
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fltr.u.ipv4.protocol = PROTO_UDP;
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fltr.u.ipv4.flags = FILTER_FIELDS_IPV4_5TUPLE;
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if (!vnic_dev_classifier(enic->vdev, CLSF_ADD, &queue, &fltr)) {
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key->fltr_id = queue;
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} else {
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dev_err(enic, "Add classifier entry failed\n");
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enic->fdir.stats.f_add++;
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rte_free(key);
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return -1;
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}
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if (do_free)
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vnic_dev_classifier(enic->vdev, CLSF_DEL, &old_fltr_id, NULL);
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else{
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enic->fdir.stats.free--;
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enic->fdir.stats.add++;
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}
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pos = rte_hash_add_key(enic->fdir.hash, params);
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enic->fdir.nodes[pos] = key;
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return 0;
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}
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void enic_clsf_destroy(struct enic *enic)
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{
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u32 index;
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struct enic_fdir_node *key;
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/* delete classifier entries */
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for (index = 0; index < ENICPMD_FDIR_MAX; index++) {
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key = enic->fdir.nodes[index];
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if (key) {
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vnic_dev_classifier(enic->vdev, CLSF_DEL,
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&key->fltr_id, NULL);
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rte_free(key);
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}
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}
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if (enic->fdir.hash) {
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rte_hash_free(enic->fdir.hash);
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enic->fdir.hash = NULL;
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}
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}
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int enic_clsf_init(struct enic *enic)
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{
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struct rte_hash_parameters hash_params = {
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.name = "enicpmd_clsf_hash",
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.entries = ENICPMD_CLSF_HASH_ENTRIES,
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.key_len = sizeof(struct rte_eth_fdir_filter),
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.hash_func = DEFAULT_HASH_FUNC,
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.hash_func_init_val = 0,
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.socket_id = SOCKET_ID_ANY,
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};
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enic->fdir.hash = rte_hash_create(&hash_params);
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memset(&enic->fdir.stats, 0, sizeof(enic->fdir.stats));
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enic->fdir.stats.free = ENICPMD_FDIR_MAX;
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return (NULL == enic->fdir.hash);
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}
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