[PATCH v3 10/18] net/bnxt: add flow query callback

[Ajit Khaparde <ajit.khaparde@broadcom.com>]

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From: Damodharam Ammepalli <damodharam.ammepalli@broadcom.com>

This patch addsbnxt query callback to rte_flow_ops in non TruFlow mode.
At this point only the RSS hash function type is displayed.

Signed-off-by: Damodharam Ammepalli <damodharam.ammepalli@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
---
 drivers/net/bnxt/bnxt_flow.c | 61 ++++++++++++++++++++++++++++++++++++
 drivers/net/bnxt/bnxt_vnic.c | 11 +++++++
 drivers/net/bnxt/bnxt_vnic.h |  2 ++
 3 files changed, 74 insertions(+)

diff --git a/drivers/net/bnxt/bnxt_flow.c b/drivers/net/bnxt/bnxt_flow.c
index 2d707b48d2..f25bc6ff78 100644
--- a/drivers/net/bnxt/bnxt_flow.c
+++ b/drivers/net/bnxt/bnxt_flow.c
@@ -1917,6 +1917,66 @@ void bnxt_flow_cnt_alarm_cb(void *arg)
 			  (void *)bp);
 }
 
+/* Query an requested flow rule. */
+static int
+bnxt_flow_query_all(struct rte_flow *flow,
+		    const struct rte_flow_action *actions, void *data,
+		    struct rte_flow_error *error)
+{
+	struct rte_flow_action_rss *rss_conf;
+	struct bnxt_vnic_info *vnic;
+
+	vnic = flow->vnic;
+	if (vnic == NULL)
+		return rte_flow_error_set(error, EINVAL,
+					  RTE_FLOW_ERROR_TYPE_HANDLE, flow,
+					  "Invalid flow: failed to query flow.");
+
+	for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
+		switch (actions->type) {
+		case RTE_FLOW_ACTION_TYPE_VOID:
+			break;
+		case RTE_FLOW_ACTION_TYPE_COUNT:
+			break;
+		case RTE_FLOW_ACTION_TYPE_RSS:
+			/* Full details of rte_flow_action_rss not available yet TBD*/
+			rss_conf = (struct rte_flow_action_rss *)data;
+
+			/* toeplitz is default */
+			if (vnic->ring_select_mode ==
+					HWRM_VNIC_RSS_CFG_INPUT_RING_SELECT_MODE_TOEPLITZ)
+				rss_conf->func = vnic->hash_f_local;
+			else
+				rss_conf->func = RTE_ETH_HASH_FUNCTION_SIMPLE_XOR;
+
+			break;
+		default:
+			return rte_flow_error_set(error, ENOTSUP,
+						  RTE_FLOW_ERROR_TYPE_ACTION, actions,
+						  "action is not supported");
+		}
+	}
+
+	return 0;
+}
+
+static int
+bnxt_flow_query(struct rte_eth_dev *dev, struct rte_flow *flow,
+		const struct rte_flow_action *actions, void *data,
+		struct rte_flow_error *error)
+{
+	struct bnxt *bp = dev->data->dev_private;
+	int ret = 0;
+
+	if (bp == NULL)
+		return -ENODEV;
+
+	bnxt_acquire_flow_lock(bp);
+	ret = bnxt_flow_query_all(flow, actions, data, error);
+	bnxt_release_flow_lock(bp);
+
+	return ret;
+}
 
 static struct rte_flow *
 bnxt_flow_create(struct rte_eth_dev *dev,
@@ -2374,4 +2434,5 @@ const struct rte_flow_ops bnxt_flow_ops = {
 	.create = bnxt_flow_create,
 	.destroy = bnxt_flow_destroy,
 	.flush = bnxt_flow_flush,
+	.query = bnxt_flow_query,
 };
diff --git a/drivers/net/bnxt/bnxt_vnic.c b/drivers/net/bnxt/bnxt_vnic.c
index 6a57f85ea7..bf1f0ea09f 100644
--- a/drivers/net/bnxt/bnxt_vnic.c
+++ b/drivers/net/bnxt/bnxt_vnic.c
@@ -1335,6 +1335,9 @@ int bnxt_rte_flow_to_hwrm_ring_select_mode(enum rte_eth_hash_function hash_f,
 	}
 
 	vnic->ring_select_mode = _bnxt_rte_to_hwrm_ring_select_mode(hash_f);
+	vnic->hash_f_local = hash_f;
+	/* shadow copy types as !hash_f is always true with default func */
+	vnic->rss_types_local = types;
 	return 0;
 }
 
@@ -1359,6 +1362,8 @@ int bnxt_rte_eth_to_hwrm_ring_select_mode(struct bnxt *bp, uint64_t types,
 	 */
 	vnic->ring_select_mode =
 		HWRM_VNIC_RSS_CFG_INPUT_RING_SELECT_MODE_TOEPLITZ;
+	vnic->hash_f_local =
+		HWRM_VNIC_RSS_CFG_INPUT_RING_SELECT_MODE_TOEPLITZ;
 	return 0;
 }
 
@@ -1367,6 +1372,12 @@ void bnxt_hwrm_rss_to_rte_hash_conf(struct bnxt_vnic_info *vnic,
 {
 	uint32_t hash_types;
 
+	/* check for local shadow rte types */
+	if (vnic->rss_types_local != 0) {
+		*rss_conf = vnic->rss_types_local;
+		return;
+	}
+
 	hash_types = vnic->hash_type;
 	*rss_conf = 0;
 	if (hash_types & HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_IPV4)
diff --git a/drivers/net/bnxt/bnxt_vnic.h b/drivers/net/bnxt/bnxt_vnic.h
index d01c9ebdb4..93155648e2 100644
--- a/drivers/net/bnxt/bnxt_vnic.h
+++ b/drivers/net/bnxt/bnxt_vnic.h
@@ -79,6 +79,8 @@ struct bnxt_vnic_info {
 	STAILQ_HEAD(, bnxt_filter_info)	filter;
 	STAILQ_HEAD(, rte_flow)	flow_list;
 	uint8_t		ring_select_mode;
+	enum rte_eth_hash_function hash_f_local;
+	uint64_t	rss_types_local;
 };
 
 struct bnxt_vnic_queue_db {
-- 
2.39.2 (Apple Git-143)


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