Webb7 dec. 2024 · rx_hash module. Receive hash computation module. Extracts IP addresses and ports from packet headers and computes 32 bit Toeplitz flow hash. stats_collect module. Statistics collector module. Parametrizable number of increment inputs, single AXI stream output for accumulated counts. stats_counter module. Statistics counter module. WebbRSS Flow Steering. Steering rules classify incoming packets and deliver a specific traffic type (e.g. TCP/UDP, IP only) or a specific flow to "RX Hash" QP. "RX Hash" QP is …
X(L)710 supports symmetric RSS hashing. See "7.1.9.3 Symmetric hash…
Second, flow director and hash filters use Toeplitz hash function to calculate hash signature, and the input set of this function is limited to 48 bytes or 24 words. When constructing the input set, the application should take care not to select more than 24 words for the set. Visa mer Before we look at the hash function, also known as Receive Side Scaling (RSS), and flow director filters let's locate them within the Intel® Ethernet Controller 700-Series based Network Adapters: Figure 1. Intel® Ethernet Controller … Visa mer There is another important characteristic of a packet defined at the packet parsing stage - Packet Classifier type or PCTYPE. What is the difference between PCTYPE and PTYPE? PCTYPE defines the packet generic nature, for … Visa mer Now look at how the field vector is used by hash and flow director filters to decide which queue packet should be directed. As we mentioned above, each PCTYPE has its own filter configuration space. The combination of the … Visa mer What size is the "field" and how many "fields" does the field vector consists of? Each field is 16-bit in size and there are 64 of these fields in the field vector. These 16-bit units are also known as "words". The parser and filters … Visa mer Webb2) Allow TCP connection lookup to use rxhash if the hash if the hash is marked as being proper Toeplitz hash. 3) Allow drivers to mark a hash value as being proper Toeplitz of a TCP packet There's also the possibility of calculating the Toeplitz hash for a connection in order to deduce which RSS queue the connection maps to, and thus allow a poor man's … flamewrought cinch
ETHTOOL设置网卡接收哈希（RSS）_redwingz的博客-CSDN博客
WebbThe hash is either provided by hardware or will be computed in the stack. Capable hardware can pass the hash in the receive descriptor for the packet; this would usually be the same hash used for RSS (e.g. computed Toeplitz hash). The hash is saved in skb->hash and can be used elsewhere in the stack as a hash of the packet’s flow. Webb26 maj 2016 · Intel 82599网卡的RSS HASH函数采用微软的托普利兹算法(Microsoft Toeplitz Based Hash)，在计算过程中使用到一个320位(40字节)random secret key作为加密密钥。 因为rss_key值设置为 … WebbToeplitz hash function API. There are four functions that provide calculation of the Toeplitz hash sum: rte_softrss () rte_softrss_be () rte_thash_gfni () rte_thash_gfni_bulk () First … can pots cause back pain