diff mbox series

[net-next,2/9] nfp: flower: add/remove predt_list entries

Message ID 20220505054348.269511-3-simon.horman@corigine.com (mailing list archive)
State Accepted
Commit e30b2b68c14f51156ae982047903bb37d4799a16
Delegated to: Netdev Maintainers
Headers show
Series nfp: flower: decap neighbour table rework | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers warning 5 maintainers not CCed: pabeni@redhat.com yinjun.zhang@corigine.com baowen.zheng@corigine.com louis.peens@corigine.com edumazet@google.com
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 68 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Simon Horman May 5, 2022, 5:43 a.m. UTC 
From: Louis Peens <louis.peens@corigine.com>

Add calls to add and remove flows to the predt_table. This very simply
just allocates and add a new pretun entry if detected as such, and
removes it when encountered on a delete flow.

Compatibility for older firmware is kept in place through the
DECAP_V2 feature bit.

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>
---
 .../ethernet/netronome/nfp/flower/action.c    |  3 +-
 .../ethernet/netronome/nfp/flower/offload.c   | 43 ++++++++++++++++---
 2 files changed, 39 insertions(+), 7 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/netronome/nfp/flower/action.c b/drivers/net/ethernet/netronome/nfp/flower/action.c
index 1b9421e844a9..0147de405365 100644
--- a/drivers/net/ethernet/netronome/nfp/flower/action.c
+++ b/drivers/net/ethernet/netronome/nfp/flower/action.c
@@ -220,7 +220,8 @@  nfp_fl_output(struct nfp_app *app, struct nfp_fl_output *output,
 		}
 		output->port = cpu_to_be32(NFP_FL_LAG_OUT | gid);
 	} else if (nfp_flower_internal_port_can_offload(app, out_dev)) {
-		if (!(priv->flower_ext_feats & NFP_FL_FEATS_PRE_TUN_RULES)) {
+		if (!(priv->flower_ext_feats & NFP_FL_FEATS_PRE_TUN_RULES) &&
+		    !(priv->flower_ext_feats & NFP_FL_FEATS_DECAP_V2)) {
 			NL_SET_ERR_MSG_MOD(extack, "unsupported offload: pre-tunnel rules not supported in loaded firmware");
 			return -EOPNOTSUPP;
 		}
diff --git a/drivers/net/ethernet/netronome/nfp/flower/offload.c b/drivers/net/ethernet/netronome/nfp/flower/offload.c
index 92e8ade4854e..0fe018bef410 100644
--- a/drivers/net/ethernet/netronome/nfp/flower/offload.c
+++ b/drivers/net/ethernet/netronome/nfp/flower/offload.c
@@ -1362,11 +1362,29 @@  nfp_flower_add_offload(struct nfp_app *app, struct net_device *netdev,
 		goto err_release_metadata;
 	}
 
-	if (flow_pay->pre_tun_rule.dev)
-		err = nfp_flower_xmit_pre_tun_flow(app, flow_pay);
-	else
+	if (flow_pay->pre_tun_rule.dev) {
+		if (priv->flower_ext_feats & NFP_FL_FEATS_DECAP_V2) {
+			struct nfp_predt_entry *predt;
+
+			predt = kzalloc(sizeof(*predt), GFP_KERNEL);
+			if (!predt) {
+				err = -ENOMEM;
+				goto err_remove_rhash;
+			}
+			predt->flow_pay = flow_pay;
+			INIT_LIST_HEAD(&predt->nn_list);
+			spin_lock_bh(&priv->predt_lock);
+			list_add(&predt->list_head, &priv->predt_list);
+			spin_unlock_bh(&priv->predt_lock);
+			flow_pay->pre_tun_rule.predt = predt;
+		} else {
+			err = nfp_flower_xmit_pre_tun_flow(app, flow_pay);
+		}
+	} else {
 		err = nfp_flower_xmit_flow(app, flow_pay,
 					   NFP_FLOWER_CMSG_TYPE_FLOW_ADD);
+	}
+
 	if (err)
 		goto err_remove_rhash;
 
@@ -1538,11 +1556,24 @@  nfp_flower_del_offload(struct nfp_app *app, struct net_device *netdev,
 		goto err_free_merge_flow;
 	}
 
-	if (nfp_flow->pre_tun_rule.dev)
-		err = nfp_flower_xmit_pre_tun_del_flow(app, nfp_flow);
-	else
+	if (nfp_flow->pre_tun_rule.dev) {
+		if (priv->flower_ext_feats & NFP_FL_FEATS_DECAP_V2) {
+			struct nfp_predt_entry *predt;
+
+			predt = nfp_flow->pre_tun_rule.predt;
+			if (predt) {
+				spin_lock_bh(&priv->predt_lock);
+				list_del(&predt->list_head);
+				spin_unlock_bh(&priv->predt_lock);
+				kfree(predt);
+			}
+		} else {
+			err = nfp_flower_xmit_pre_tun_del_flow(app, nfp_flow);
+		}
+	} else {
 		err = nfp_flower_xmit_flow(app, nfp_flow,
 					   NFP_FLOWER_CMSG_TYPE_FLOW_DEL);
+	}
 	/* Fall through on error. */
 
 err_free_merge_flow: