[dpdk-dev] [PATCH] net/enic: support the drop flow action

John Daley johndale at cisco.com
Thu Apr 5 01:54:54 CEST 2018
Previous message: [dpdk-dev] [PATCH] net/enic: fix seg fault on MTU update with non-setup queues
Next message: [dpdk-dev] [PATCH] net/enic: support the drop flow action
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
From: Hyong Youb Kim <hyonkim at cisco.com>

1330 and 1400 series adapters support the drop action. Check for its
availability and set the necessary flag when creating NIC filters.

Signed-off-by: Hyong Youb Kim <hyonkim at cisco.com>
Reviewed-by: John Daley <johndale at cisco.com>
---
 doc/guides/nics/enic.rst            |  2 +-
 drivers/net/enic/base/vnic_dev.c    | 14 +++++---------
 drivers/net/enic/base/vnic_dev.h    |  2 +-
 drivers/net/enic/base/vnic_devcmd.h |  2 ++
 drivers/net/enic/enic.h             |  2 +-
 drivers/net/enic/enic_flow.c        | 34 +++++++++++++++++++++++++++-------
 drivers/net/enic/enic_res.c         | 11 ++++++++---
 7 files changed, 45 insertions(+), 22 deletions(-)

diff --git a/doc/guides/nics/enic.rst b/doc/guides/nics/enic.rst
index d02a69829..df3718ecd 100644
--- a/doc/guides/nics/enic.rst
+++ b/doc/guides/nics/enic.rst
@@ -251,7 +251,7 @@ Generic Flow API is supported. The baseline support is:
 
   - Attributes: ingress
   - Items: eth, ipv4, ipv6, udp, tcp, vxlan, inner eth, ipv4, ipv6, udp, tcp
-  - Actions: queue, mark, flag and void
+  - Actions: queue, mark, drop, flag and void
   - Selectors: 'is', 'spec' and 'mask'. 'last' is not supported
   - In total, up to 64 bytes of mask is allowed across all headers
 
diff --git a/drivers/net/enic/base/vnic_dev.c b/drivers/net/enic/base/vnic_dev.c
index 1d6734dc1..8880ab981 100644
--- a/drivers/net/enic/base/vnic_dev.c
+++ b/drivers/net/enic/base/vnic_dev.c
@@ -485,7 +485,7 @@ int vnic_dev_capable_adv_filters(struct vnic_dev *vdev)
  *   Retrun true in filter_tags if supported
  */
 int vnic_dev_capable_filter_mode(struct vnic_dev *vdev, u32 *mode,
-				 u8 *filter_tags)
+				 u8 *filter_actions)
 {
 	u64 args[4];
 	int err;
@@ -493,14 +493,10 @@ int vnic_dev_capable_filter_mode(struct vnic_dev *vdev, u32 *mode,
 
 	err = vnic_dev_advanced_filters_cap(vdev, args, 4);
 
-	/* determine if filter tags are available */
-	if (err)
-		*filter_tags = 0;
-	if ((args[2] == FILTER_CAP_MODE_V1) &&
-	    (args[3] & FILTER_ACTION_FILTER_ID_FLAG))
-		*filter_tags = 1;
-	else
-		*filter_tags = 0;
+	/* determine supported filter actions */
+	*filter_actions = FILTER_ACTION_RQ_STEERING_FLAG; /* always available */
+	if (args[2] == FILTER_CAP_MODE_V1)
+		*filter_actions = args[3];
 
 	if (err || ((args[0] == 1) && (args[1] == 0))) {
 		/* Adv filter Command not supported or adv filters available but
diff --git a/drivers/net/enic/base/vnic_dev.h b/drivers/net/enic/base/vnic_dev.h
index 62c09fa86..e7a1f8bd8 100644
--- a/drivers/net/enic/base/vnic_dev.h
+++ b/drivers/net/enic/base/vnic_dev.h
@@ -108,7 +108,7 @@ int vnic_dev_fw_info(struct vnic_dev *vdev,
 int vnic_dev_capable_adv_filters(struct vnic_dev *vdev);
 int vnic_dev_capable(struct vnic_dev *vdev, enum vnic_devcmd_cmd cmd);
 int vnic_dev_capable_filter_mode(struct vnic_dev *vdev, u32 *mode,
-				 u8 *filter_tags);
+				 u8 *filter_actions);
 int vnic_dev_capable_udp_rss(struct vnic_dev *vdev);
 int vnic_dev_asic_info(struct vnic_dev *vdev, u16 *asic_type, u16 *asic_rev);
 int vnic_dev_spec(struct vnic_dev *vdev, unsigned int offset, size_t size,
diff --git a/drivers/net/enic/base/vnic_devcmd.h b/drivers/net/enic/base/vnic_devcmd.h
index d09113dac..2865eb4d4 100644
--- a/drivers/net/enic/base/vnic_devcmd.h
+++ b/drivers/net/enic/base/vnic_devcmd.h
@@ -841,7 +841,9 @@ struct filter_action {
 
 #define FILTER_ACTION_RQ_STEERING_FLAG	(1 << 0)
 #define FILTER_ACTION_FILTER_ID_FLAG	(1 << 1)
+#define FILTER_ACTION_DROP_FLAG		(1 << 2)
 #define FILTER_ACTION_V2_ALL		(FILTER_ACTION_RQ_STEERING_FLAG \
+					 | FILTER_ACTION_DROP_FLAG \
 					 | FILTER_ACTION_FILTER_ID_FLAG)
 
 /* Version 2 of filter action must be a strict extension of struct filter_action
diff --git a/drivers/net/enic/enic.h b/drivers/net/enic/enic.h
index 9d69d1e9e..e4936ec13 100644
--- a/drivers/net/enic/enic.h
+++ b/drivers/net/enic/enic.h
@@ -119,7 +119,7 @@ struct enic {
 	u16 max_mtu;
 	u8 adv_filters;
 	u32 flow_filter_mode;
-	u8 filter_tags;
+	u8 filter_actions; /* HW supported actions */
 	u8 vxlan;
 
 	unsigned int flags;
diff --git a/drivers/net/enic/enic_flow.c b/drivers/net/enic/enic_flow.c
index 28923b0e2..b9f36587c 100644
--- a/drivers/net/enic/enic_flow.c
+++ b/drivers/net/enic/enic_flow.c
@@ -273,21 +273,33 @@ static const enum rte_flow_action_type enic_supported_actions_v1[] = {
 };
 
 /** Supported actions for newer NICs */
-static const enum rte_flow_action_type enic_supported_actions_v2[] = {
+static const enum rte_flow_action_type enic_supported_actions_v2_id[] = {
 	RTE_FLOW_ACTION_TYPE_QUEUE,
 	RTE_FLOW_ACTION_TYPE_MARK,
 	RTE_FLOW_ACTION_TYPE_FLAG,
 	RTE_FLOW_ACTION_TYPE_END,
 };
 
+static const enum rte_flow_action_type enic_supported_actions_v2_drop[] = {
+	RTE_FLOW_ACTION_TYPE_QUEUE,
+	RTE_FLOW_ACTION_TYPE_MARK,
+	RTE_FLOW_ACTION_TYPE_FLAG,
+	RTE_FLOW_ACTION_TYPE_DROP,
+	RTE_FLOW_ACTION_TYPE_END,
+};
+
 /** Action capabilities indexed by NIC version information */
 static const struct enic_action_cap enic_action_cap[] = {
 	[FILTER_ACTION_RQ_STEERING_FLAG] = {
 		.actions = enic_supported_actions_v1,
 		.copy_fn = enic_copy_action_v1,
 	},
-	[FILTER_ACTION_V2_ALL] = {
-		.actions = enic_supported_actions_v2,
+	[FILTER_ACTION_FILTER_ID_FLAG] = {
+		.actions = enic_supported_actions_v2_id,
+		.copy_fn = enic_copy_action_v2,
+	},
+	[FILTER_ACTION_DROP_FLAG] = {
+		.actions = enic_supported_actions_v2_drop,
 		.copy_fn = enic_copy_action_v2,
 	},
 };
@@ -1021,6 +1033,10 @@ enic_copy_action_v2(const struct rte_flow_action actions[],
 			enic_action->flags |= FILTER_ACTION_FILTER_ID_FLAG;
 			break;
 		}
+		case RTE_FLOW_ACTION_TYPE_DROP: {
+			enic_action->flags |= FILTER_ACTION_DROP_FLAG;
+			break;
+		}
 		case RTE_FLOW_ACTION_TYPE_VOID:
 			continue;
 		default:
@@ -1059,10 +1075,14 @@ enic_get_filter_cap(struct enic *enic)
 static const struct enic_action_cap *
 enic_get_action_cap(struct enic *enic)
 {
-	static const struct enic_action_cap *ea;
-
-	if (enic->filter_tags)
-		ea = &enic_action_cap[FILTER_ACTION_V2_ALL];
+	const struct enic_action_cap *ea;
+	uint8_t actions;
+
+	actions = enic->filter_actions;
+	if (actions & FILTER_ACTION_DROP_FLAG)
+		ea = &enic_action_cap[FILTER_ACTION_DROP_FLAG];
+	else if (actions & FILTER_ACTION_FILTER_ID_FLAG)
+		ea = &enic_action_cap[FILTER_ACTION_FILTER_ID_FLAG];
 	else
 		ea = &enic_action_cap[FILTER_ACTION_RQ_STEERING_FLAG];
 	return ea;
diff --git a/drivers/net/enic/enic_res.c b/drivers/net/enic/enic_res.c
index 34532720c..de17a31d0 100644
--- a/drivers/net/enic/enic_res.c
+++ b/drivers/net/enic/enic_res.c
@@ -76,19 +76,24 @@ int enic_get_vnic_config(struct enic *enic)
 		 ? "" : "not "));
 
 	err = vnic_dev_capable_filter_mode(enic->vdev, &enic->flow_filter_mode,
-					   &enic->filter_tags);
+					   &enic->filter_actions);
 	if (err) {
 		dev_err(enic_get_dev(enic),
 			"Error getting filter modes, %d\n", err);
 		return err;
 	}
 
-	dev_info(enic, "Flow api filter mode: %s, Filter tagging %savailable\n",
+	dev_info(enic, "Flow api filter mode: %s Actions: %s%s%s\n",
 		((enic->flow_filter_mode == FILTER_DPDK_1) ? "DPDK" :
 		((enic->flow_filter_mode == FILTER_USNIC_IP) ? "USNIC" :
 		((enic->flow_filter_mode == FILTER_IPV4_5TUPLE) ? "5TUPLE" :
 		"NONE"))),
-		((enic->filter_tags) ? "" : "not "));
+		((enic->filter_actions & FILTER_ACTION_RQ_STEERING_FLAG) ?
+		 "steer " : ""),
+		((enic->filter_actions & FILTER_ACTION_FILTER_ID_FLAG) ?
+		 "tag " : ""),
+		((enic->filter_actions & FILTER_ACTION_DROP_FLAG) ?
+		 "drop " : ""));
 
 	c->wq_desc_count =
 		min_t(u32, ENIC_MAX_WQ_DESCS,
-- 
2.16.2
Previous message: [dpdk-dev] [PATCH] net/enic: fix seg fault on MTU update with non-setup queues
Next message: [dpdk-dev] [PATCH] net/enic: support the drop flow action
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
More information about the dev mailing list