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ethdev: extend RSS offload types

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This patch reserves several bits as input set selection from the
high end of the 64 bits. It is combined with exisiting ETH_RSS_*
to represent RSS types. This patch also checks the simultaneous
use of SRC_ONLY and DST_ONLY of the same level.

Signed-off-by: Simei Su <simei.su@intel.com>
Reviewed-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Ori Kam <orika@mellanox.com>
Reviewed-by: Andrew Rybchenko <arybchenko@solarflare.com>
This commit is contained in:
Simei Su 2019-10-15 23:09:48 +08:00 committed by Ferruh Yigit
parent fce6b66893
commit d3ae8c44b8
2 changed files with 41 additions and 0 deletions
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5
lib/librte_ethdev/rte_ethdev.c
View File

@ -1288,6 +1288,9 @@ rte_eth_dev_configure(uint16_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
goto rollback;
}
dev->data->dev_conf.rx_adv_conf.rss_conf.rss_hf =
rte_eth_rss_hf_refine(dev_conf->rx_adv_conf.rss_conf.rss_hf);
/* Check that device supports requested rss hash functions. */
if ((dev_info.flow_type_rss_offloads |
dev_conf->rx_adv_conf.rss_conf.rss_hf) !=
@ -3131,6 +3134,8 @@ rte_eth_dev_rss_hash_update(uint16_t port_id,
if (ret != 0)
return ret;
rss_conf->rss_hf = rte_eth_rss_hf_refine(rss_conf->rss_hf);
dev = &rte_eth_devices[port_id];
if ((dev_info.flow_type_rss_offloads | rss_conf->rss_hf) !=
dev_info.flow_type_rss_offloads) {

36
lib/librte_ethdev/rte_ethdev.h
View File

@ -507,6 +507,42 @@ struct rte_eth_rss_conf {
#define ETH_RSS_NVGRE (1ULL << 21)
#define ETH_RSS_GTPU (1ULL << 23)
/*
* We use the following macros to combine with above ETH_RSS_* for
* more specific input set selection. These bits are defined starting
* from the high end of the 64 bits.
* Note: If we use above ETH_RSS_* without SRC/DST_ONLY, it represents
* both SRC and DST are taken into account. If SRC_ONLY and DST_ONLY of
* the same level are used simultaneously, it is the same case as none of
* them are added.
*/
#define ETH_RSS_L3_SRC_ONLY (1ULL << 63)
#define ETH_RSS_L3_DST_ONLY (1ULL << 62)
#define ETH_RSS_L4_SRC_ONLY (1ULL << 61)
#define ETH_RSS_L4_DST_ONLY (1ULL << 60)
/**
* For input set change of hash filter, if SRC_ONLY and DST_ONLY of
* the same level are used simultaneously, it is the same case as
* none of them are added.
*
* @param rss_hf
* RSS types with SRC/DST_ONLY.
* @return
* RSS types.
*/
static inline uint64_t
rte_eth_rss_hf_refine(uint64_t rss_hf)
{
if ((rss_hf & ETH_RSS_L3_SRC_ONLY) && (rss_hf & ETH_RSS_L3_DST_ONLY))
rss_hf &= ~(ETH_RSS_L3_SRC_ONLY | ETH_RSS_L3_DST_ONLY);
if ((rss_hf & ETH_RSS_L4_SRC_ONLY) && (rss_hf & ETH_RSS_L4_DST_ONLY))
rss_hf &= ~(ETH_RSS_L4_SRC_ONLY | ETH_RSS_L4_DST_ONLY);
return rss_hf;
}
#define ETH_RSS_IP ( \
ETH_RSS_IPV4 | \
ETH_RSS_FRAG_IPV4 | \