diff options
Diffstat (limited to 'src/spdk/dpdk/drivers/net/tap/tap_rss.h')
| -rw-r--r-- | src/spdk/dpdk/drivers/net/tap/tap_rss.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/src/spdk/dpdk/drivers/net/tap/tap_rss.h b/src/spdk/dpdk/drivers/net/tap/tap_rss.h new file mode 100644 index 00000000..17606b2d --- /dev/null +++ b/src/spdk/dpdk/drivers/net/tap/tap_rss.h @@ -0,0 +1,40 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright 2017 Mellanox Technologies, Ltd + */ + +#ifndef _TAP_RSS_H_ +#define _TAP_RSS_H_ + +#ifndef TAP_MAX_QUEUES +#define TAP_MAX_QUEUES 16 +#endif + +/* Fixed RSS hash key size in bytes. */ +#define TAP_RSS_HASH_KEY_SIZE 40 + +/* Supported RSS */ +#define TAP_RSS_HF_MASK (~(ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP)) + +/* hashed fields for RSS */ +enum hash_field { + HASH_FIELD_IPV4_L3, /* IPv4 src/dst addr */ + HASH_FIELD_IPV4_L3_L4, /* IPv4 src/dst addr + L4 src/dst ports */ + HASH_FIELD_IPV6_L3, /* IPv6 src/dst addr */ + HASH_FIELD_IPV6_L3_L4, /* IPv6 src/dst addr + L4 src/dst ports */ + HASH_FIELD_L2_SRC, /* Ethernet src addr */ + HASH_FIELD_L2_DST, /* Ethernet dst addr */ + HASH_FIELD_L3_SRC, /* L3 src addr */ + HASH_FIELD_L3_DST, /* L3 dst addr */ + HASH_FIELD_L4_SRC, /* TCP/UDP src ports */ + HASH_FIELD_L4_DST, /* TCP/UDP dst ports */ +}; + +struct rss_key { + __u8 key[128]; + __u32 hash_fields; + __u32 key_size; + __u32 queues[TAP_MAX_QUEUES]; + __u32 nb_queues; +} __attribute__((packed)); + +#endif /* _TAP_RSS_H_ */ |