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/*
*------------------------------------------------------------------
* Copyright (c) 2022 Intel and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*------------------------------------------------------------------
*/
#include <vppinfra/mem.h>
#include "avf_advanced_flow.h"
int
avf_rss_cfg_create (struct virtchnl_rss_cfg **rss_cfg, int tunnel_level)
{
*rss_cfg = clib_mem_alloc (sizeof (**rss_cfg));
if ((*rss_cfg) == NULL)
return -1;
clib_memset (*rss_cfg, 0, sizeof (**rss_cfg));
(*rss_cfg)->proto_hdrs.tunnel_level = tunnel_level;
return 0;
}
int
avf_rss_rcfg_destroy (struct virtchnl_rss_cfg *rss_cfg)
{
clib_mem_free (rss_cfg);
return 0;
}
int
avf_rss_parse_action (const struct avf_flow_action actions[],
struct virtchnl_rss_cfg *rss_cfg,
struct avf_flow_error *error)
{
const struct avf_flow_action_rss *rss;
int ret;
rss = actions->conf;
if (rss->func == AVF_ETH_HASH_FUNCTION_SIMPLE_XOR)
{
rss_cfg->rss_algorithm = VIRTCHNL_RSS_ALG_XOR_ASYMMETRIC;
ret = avf_flow_error_set (error, AVF_FAILURE, AVF_FLOW_ERROR_TYPE_ACTION,
actions, "simple xor is not supported.");
return ret;
}
else if (rss->func == AVF_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ)
{
rss_cfg->rss_algorithm = VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC;
}
else
{
rss_cfg->rss_algorithm = VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC;
}
return 0;
}
int
avf_rss_parse_generic_pattern (struct virtchnl_rss_cfg *rss_cfg,
struct avf_flow_item avf_items[],
struct avf_flow_error *error)
{
struct avf_flow_item *item = avf_items;
u8 *pkt_buf, *msk_buf;
u16 spec_len, pkt_len;
spec_len = clib_strnlen (item->spec, VIRTCHNL_MAX_SIZE_GEN_PACKET);
pkt_len = spec_len / 2;
pkt_buf = clib_mem_alloc (pkt_len);
msk_buf = clib_mem_alloc (pkt_len);
avf_parse_generic_pattern (item, pkt_buf, msk_buf, spec_len);
clib_memcpy (rss_cfg->proto_hdrs.raw.spec, pkt_buf, pkt_len);
clib_memcpy (rss_cfg->proto_hdrs.raw.mask, msk_buf, pkt_len);
rss_cfg->proto_hdrs.count = 0;
rss_cfg->proto_hdrs.tunnel_level = 0;
rss_cfg->proto_hdrs.raw.pkt_len = pkt_len;
clib_mem_free (pkt_buf);
clib_mem_free (msk_buf);
return 0;
}
/* Used for common flow creation */
int
avf_rss_parse_pattern (struct virtchnl_rss_cfg *rss_cfg,
struct avf_flow_item avf_items[],
struct avf_flow_error *error)
{
return -1;
}
int
avf_rss_rule_create (struct avf_flow_vc_ctx *ctx,
struct virtchnl_rss_cfg *rss_cfg)
{
int ret;
ret = ctx->vc_op (ctx->vc_hdl, VIRTCHNL_ADV_OP_ADD_RSS_CFG, rss_cfg,
sizeof (*rss_cfg), 0, 0);
return ret;
}
int
avf_rss_rule_destroy (struct avf_flow_vc_ctx *ctx,
struct virtchnl_rss_cfg *rss_cfg)
{
int ret;
ret = ctx->vc_op (ctx->vc_hdl, VIRTCHNL_ADV_OP_DEL_RSS_CFG, rss_cfg,
sizeof (*rss_cfg), 0, 0);
return ret;
}
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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