diff options
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/flower/conntrack.c')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/flower/conntrack.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/flower/conntrack.c b/drivers/net/ethernet/netronome/nfp/flower/conntrack.c index 7e9fcc16286e..fc17e9b11d19 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/conntrack.c +++ b/drivers/net/ethernet/netronome/nfp/flower/conntrack.c @@ -1665,8 +1665,6 @@ nfp_fl_ct_offload_nft_flow(struct nfp_fl_ct_zone_entry *zt, struct flow_cls_offl struct nfp_fl_ct_flow_entry *ct_entry; struct netlink_ext_ack *extack = NULL; - ASSERT_RTNL(); - extack = flow->common.extack; switch (flow->command) { case FLOW_CLS_REPLACE: @@ -1709,9 +1707,13 @@ int nfp_fl_ct_handle_nft_flow(enum tc_setup_type type, void *type_data, void *cb switch (type) { case TC_SETUP_CLSFLOWER: - rtnl_lock(); + while (!mutex_trylock(&zt->priv->nfp_fl_lock)) { + if (!zt->nft) /* avoid deadlock */ + return err; + msleep(20); + } err = nfp_fl_ct_offload_nft_flow(zt, flow); - rtnl_unlock(); + mutex_unlock(&zt->priv->nfp_fl_lock); break; default: return -EOPNOTSUPP; @@ -1739,6 +1741,7 @@ int nfp_fl_ct_del_flow(struct nfp_fl_ct_map_entry *ct_map_ent) struct nfp_fl_ct_flow_entry *ct_entry; struct nfp_fl_ct_zone_entry *zt; struct rhashtable *m_table; + struct nf_flowtable *nft; if (!ct_map_ent) return -ENOENT; @@ -1755,8 +1758,12 @@ int nfp_fl_ct_del_flow(struct nfp_fl_ct_map_entry *ct_map_ent) nfp_fl_ct_clean_flow_entry(ct_entry); kfree(ct_map_ent); - if (!zt->pre_ct_count) { - zt->nft = NULL; + if (!zt->pre_ct_count && zt->nft) { + nft = zt->nft; + zt->nft = NULL; /* avoid deadlock */ + nf_flow_table_offload_del_cb(nft, + nfp_fl_ct_handle_nft_flow, + zt); nfp_fl_ct_clean_nft_entries(zt); } break; |