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2015-06-04net: Add full IPv6 addresses to flow_keysTom Herbert1-5/+6
This patch adds full IPv6 addresses into flow_keys and uses them as input to the flow hash function. The implementation supports either IPv4 or IPv6 addresses in a union, and selector is used to determine how may words to input to jhash2. We also add flow_get_u32_dst and flow_get_u32_src functions which are used to get a u32 representation of the source and destination addresses. For IPv6, ipv6_addr_hash is called. These functions retain getting the legacy values of src and dst in flow_keys. With this patch, Ethertype and IP protocol are now included in the flow hash input. Signed-off-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-04net: Get skb hash over flow_keys structureTom Herbert1-0/+2
This patch changes flow hashing to use jhash2 over the flow_keys structure instead just doing jhash_3words over src, dst, and ports. This method will allow us take more input into the hashing function so that we can include full IPv6 addresses, VLAN, flow labels etc. without needing to resort to xor'ing which makes for a poor hash. Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-14cls_flower: Fix compile errorBrian Haley1-3/+3
Fix compile error in net/sched/cls_flower.c net/sched/cls_flower.c: In function ‘fl_set_key’: net/sched/cls_flower.c:240:3: error: implicit declaration of function ‘tcf_change_indev’ [-Werror=implicit-function-declaration] err = tcf_change_indev(net, tb[TCA_FLOWER_INDEV]); Introduced in 77b9900ef53ae Fixes: 77b9900ef53ae ("tc: introduce Flower classifier") Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-13tc: introduce Flower classifierJiri Pirko1-0/+688
This patch introduces a flow-based filter. So far, the very essential packet fields are supported. This patch is only the first step. There is a lot of potential performance improvements possible to implement. Also a lot of features are missing now. They will be addressed in follow-up patches. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>