* Calculate an appropriate ipv6 2-tuple or 4-tuple given the given * IPv6 source/destination address, UDP or TCP source/destination ports * and the protocol type. * * The protocol code may wish to do a software hash of the given * tuple. This depends upon the currently configured RSS hash types. * * It assumes the packet source/destination address * are in "outgoin" packet order (ie, desti
| 164 | * are in "outgoin" packet order (ie, destination is "far" address.) |
| 165 | */ |
| 166 | uint32_t |
| 167 | xps_proto_software_hash_v6(const struct in6_addr *s, const struct in6_addr *d, |
| 168 | u_short sp, u_short dp, int proto, uint32_t *hashtype) |
| 169 | { |
| 170 | |
| 171 | uint32_t hash; |
| 172 | |
| 173 | /* |
| 174 | * Next, choose the hash type depending upon the protocol |
| 175 | * identifier. |
| 176 | */ |
| 177 | if ((proto == IPPROTO_TCP) && |
| 178 | (rss_gethashconfig() & RSS_HASHTYPE_RSS_TCP_IPV6)) { |
| 179 | hash = rss_hash_ip6_4tuple(d, dp, s, sp); |
| 180 | *hashtype = M_HASHTYPE_RSS_TCP_IPV6; |
| 181 | return (hash); |
| 182 | } else if ((proto == IPPROTO_UDP) && |
| 183 | (rss_gethashconfig() & RSS_HASHTYPE_RSS_UDP_IPV6)) { |
| 184 | hash = rss_hash_ip6_4tuple(d, dp, s, sp); |
| 185 | *hashtype = M_HASHTYPE_RSS_UDP_IPV6; |
| 186 | return (hash); |
| 187 | } else if (rss_gethashconfig() & RSS_HASHTYPE_RSS_IPV6) { |
| 188 | /* RSS doesn't hash on other protocols like SCTP; so 2-tuple */ |
| 189 | hash = rss_hash_ip6_2tuple(d, s); |
| 190 | *hashtype = M_HASHTYPE_RSS_IPV6; |
| 191 | return (hash); |
| 192 | } |
| 193 | |
| 194 | *hashtype = M_HASHTYPE_NONE; |
| 195 | return (0); |
| 196 | } |
| 197 | |
| 198 | |
| 199 | /* |
nothing calls this directly
no test coverage detected