diff options
author | Louis Peens <louis.peens@corigine.com> | 2021-06-02 14:59:51 +0300 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2021-06-03 00:04:42 +0300 |
commit | f7ae12e2f95dc5bed1a0c6cfd73cf6690d465855 (patch) | |
tree | ee09f4ed0e81be497bde66a10ad4647b6b4c4fe9 /drivers/net/ethernet/netronome/nfp/flower | |
parent | fa81d6d214a4202b539a815d6c9d6b3c8e70ca95 (diff) | |
download | linux-f7ae12e2f95dc5bed1a0c6cfd73cf6690d465855.tar.xz |
nfp: flower-ct: add tc_merge_tb
Add the table required to store the merge result of pre_ct and post_ct
flows. This is just the initial setup and teardown of the table,
the implementation will be in follow-up patches.
Signed-off-by: Louis Peens <louis.peens@corigine.com>
Signed-off-by: Yinjun Zhang <yinjun.zhang@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/flower')
-rw-r--r-- | drivers/net/ethernet/netronome/nfp/flower/conntrack.c | 14 | ||||
-rw-r--r-- | drivers/net/ethernet/netronome/nfp/flower/conntrack.h | 29 | ||||
-rw-r--r-- | drivers/net/ethernet/netronome/nfp/flower/metadata.c | 4 |
3 files changed, 47 insertions, 0 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/flower/conntrack.c b/drivers/net/ethernet/netronome/nfp/flower/conntrack.c index f6f97224e773..afa024971c08 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/conntrack.c +++ b/drivers/net/ethernet/netronome/nfp/flower/conntrack.c @@ -3,6 +3,14 @@ #include "conntrack.h" +const struct rhashtable_params nfp_tc_ct_merge_params = { + .head_offset = offsetof(struct nfp_fl_ct_tc_merge, + hash_node), + .key_len = sizeof(unsigned long) * 2, + .key_offset = offsetof(struct nfp_fl_ct_tc_merge, cookie), + .automatic_shrinking = true, +}; + /** * get_hashentry() - Wrapper around hashtable lookup. * @ht: hashtable where entry could be found @@ -87,6 +95,10 @@ nfp_fl_ct_zone_entry *get_nfp_zone_entry(struct nfp_flower_priv *priv, INIT_LIST_HEAD(&zt->pre_ct_list); INIT_LIST_HEAD(&zt->post_ct_list); + err = rhashtable_init(&zt->tc_merge_tb, &nfp_tc_ct_merge_params); + if (err) + goto err_tc_merge_tb_init; + if (wildcarded) { priv->ct_zone_wc = zt; } else { @@ -100,6 +112,8 @@ nfp_fl_ct_zone_entry *get_nfp_zone_entry(struct nfp_flower_priv *priv, return zt; err_zone_insert: + rhashtable_destroy(&zt->tc_merge_tb); +err_tc_merge_tb_init: kfree(zt); return ERR_PTR(err); } diff --git a/drivers/net/ethernet/netronome/nfp/flower/conntrack.h b/drivers/net/ethernet/netronome/nfp/flower/conntrack.h index a7f0d7c76b72..3d7d260c6e5c 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/conntrack.h +++ b/drivers/net/ethernet/netronome/nfp/flower/conntrack.h @@ -10,6 +10,7 @@ extern const struct rhashtable_params nfp_zone_table_params; extern const struct rhashtable_params nfp_ct_map_params; +extern const struct rhashtable_params nfp_tc_ct_merge_params; /** * struct nfp_fl_ct_zone_entry - Zone entry containing conntrack flow information @@ -23,6 +24,9 @@ extern const struct rhashtable_params nfp_ct_map_params; * * @post_ct_list: The post_ct_list of nfp_fl_ct_flow_entry entries * @post_ct_count: Keep count of the number of post_ct entries + * + * @tc_merge_tb: The table of merged tc flows + * @tc_merge_count: Keep count of the number of merged tc entries */ struct nfp_fl_ct_zone_entry { u16 zone; @@ -36,6 +40,9 @@ struct nfp_fl_ct_zone_entry { struct list_head post_ct_list; unsigned int post_ct_count; + + struct rhashtable tc_merge_tb; + unsigned int tc_merge_count; }; enum ct_entry_type { @@ -71,6 +78,28 @@ struct nfp_fl_ct_flow_entry { }; /** + * struct nfp_fl_ct_tc_merge - Merge of two flows from tc + * @cookie: Flow cookie, combination of pre and post ct cookies + * @hash_node: Used by the hashtable + * @pre_ct_list: This entry is part of a pre_ct_list + * @post_ct_list: This entry is part of a post_ct_list + * @zt: Reference to the zone table this belongs to + * @pre_ct_parent: The pre_ct_parent + * @post_ct_parent: The post_ct_parent + * @children: List of nft merged entries + */ +struct nfp_fl_ct_tc_merge { + unsigned long cookie[2]; + struct rhash_head hash_node; + struct list_head pre_ct_list; + struct list_head post_ct_list; + struct nfp_fl_ct_zone_entry *zt; + struct nfp_fl_ct_flow_entry *pre_ct_parent; + struct nfp_fl_ct_flow_entry *post_ct_parent; + struct list_head children; +}; + +/** * struct nfp_fl_ct_map_entry - Map between flow cookie and specific ct_flow * @cookie: Flow cookie, same as original TC flow, used as key * @hash_node: Used by the hashtable diff --git a/drivers/net/ethernet/netronome/nfp/flower/metadata.c b/drivers/net/ethernet/netronome/nfp/flower/metadata.c index 7654cf6a3222..8658c5cedf91 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/metadata.c +++ b/drivers/net/ethernet/netronome/nfp/flower/metadata.c @@ -638,6 +638,10 @@ static void nfp_zone_table_entry_destroy(struct nfp_fl_ct_zone_entry *zt) kfree(map); } } + + rhashtable_free_and_destroy(&zt->tc_merge_tb, + nfp_check_rhashtable_empty, NULL); + kfree(zt); } |