net/bnxt: fix function id used in flow flush

The function id being used in the flush is incorrect, fixed the
flush of the flows.

Fixes: 74bcfc062489 ("net/bnxt: add session and function flow flush")
Cc: stable@dpdk.org

Signed-off-by: Kishore Padmanabha <kishore.padmanabha@broadcom.com>
Reviewed-by: Shahaji Bhosle <sbhosle@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>

drivers/net/bnxt/bnxt_ethdev.c

@@ -3723,6 +3723,7 @@ bnxt_filter_ctrl_op(struct rte_eth_dev *dev,
 	if (BNXT_ETH_DEV_IS_REPRESENTOR(dev)) {
 		struct bnxt_vf_representor *vfr = dev->data->dev_private;
 		bp = vfr->parent_dev->data->dev_private;
+		/* parent is deleted while children are still valid */
 		if (!bp)
 			return -EIO;
 	}

drivers/net/bnxt/tf_ulp/bnxt_ulp.c

@@ -35,14 +35,12 @@ static pthread_mutex_t bnxt_ulp_global_mutex = PTHREAD_MUTEX_INITIALIZER;
  * created the session.
  */
 bool
-ulp_ctx_deinit_allowed(void *ptr)
+ulp_ctx_deinit_allowed(struct bnxt_ulp_context *ulp_ctx)
 {
-	struct bnxt *bp = (struct bnxt *)ptr;
-
-	if (!bp || !bp->ulp_ctx || !bp->ulp_ctx->cfg_data)
+	if (!ulp_ctx || !ulp_ctx->cfg_data)
 		return false;
 
-	if (!bp->ulp_ctx->cfg_data->ref_cnt) {
+	if (!ulp_ctx->cfg_data->ref_cnt) {
 		BNXT_TF_DBG(DEBUG, "ulp ctx shall initiate deinit\n");
 		return true;
 	}
@@ -629,9 +627,14 @@ bnxt_ulp_flush_port_flows(struct bnxt *bp)
 {
 	uint16_t func_id;
 
-	func_id = bnxt_get_fw_func_id(bp->eth_dev->data->port_id,
-				      BNXT_ULP_INTF_TYPE_INVALID);
-	ulp_flow_db_function_flow_flush(bp->ulp_ctx, func_id);
+	/* it is assumed that port is either TVF or PF */
+	if (ulp_port_db_port_func_id_get(bp->ulp_ctx,
+					 bp->eth_dev->data->port_id,
+					 &func_id)) {
+		BNXT_TF_DBG(ERR, "Invalid argument\n");
+		return;
+	}
+	(void)ulp_flow_db_function_flow_flush(bp->ulp_ctx, func_id);
 }
 
 /* Internal function to delete the VFR default flows */

drivers/net/bnxt/tf_ulp/bnxt_ulp.h

@@ -83,12 +83,9 @@ struct ulp_tlv_param {
 /*
  * Allow the deletion of context only for the bnxt device that
  * created the session
- * TBD - The implementation of the function should change to
- * using the reference count once tf_session_attach functionality
- * is fixed.
  */
 bool
-ulp_ctx_deinit_allowed(void *bp);
+ulp_ctx_deinit_allowed(struct bnxt_ulp_context *ulp_ctx);
 
 /* Function to set the device id of the hardware. */
 int32_t

drivers/net/bnxt/tf_ulp/bnxt_ulp_flow.c

@@ -10,6 +10,7 @@
 #include "ulp_flow_db.h"
 #include "ulp_mapper.h"
 #include "ulp_fc_mgr.h"
+#include "ulp_port_db.h"
 #include <rte_malloc.h>
 
 static int32_t
@@ -146,8 +147,14 @@ bnxt_ulp_flow_create(struct rte_eth_dev *dev,
 	mapper_cparms.act_prop = &params.act_prop;
 	mapper_cparms.class_tid = class_id;
 	mapper_cparms.act_tid = act_tmpl;
-	mapper_cparms.func_id = bnxt_get_fw_func_id(dev->data->port_id,
-						    BNXT_ULP_INTF_TYPE_INVALID);
+
+	/* Get the function id */
+	if (ulp_port_db_port_func_id_get(ulp_ctx,
+					 dev->data->port_id,
+					 &mapper_cparms.func_id)) {
+		BNXT_TF_DBG(ERR, "conversion of port to func id failed\n");
+		goto parse_error;
+	}
 	mapper_cparms.dir_attr = params.dir_attr;
 
 	/* Call the ulp mapper to create the flow in the hardware. */
@@ -251,8 +258,17 @@ bnxt_ulp_flow_destroy(struct rte_eth_dev *dev,
 	}
 
 	flow_id = (uint32_t)(uintptr_t)flow;
-	func_id = bnxt_get_fw_func_id(dev->data->port_id,
-				      BNXT_ULP_INTF_TYPE_INVALID);
+
+	if (ulp_port_db_port_func_id_get(ulp_ctx,
+					 dev->data->port_id,
+					 &func_id)) {
+		BNXT_TF_DBG(ERR, "conversion of port to func id failed\n");
+		if (error)
+			rte_flow_error_set(error, EINVAL,
+					   RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
+					   "Failed to destroy flow.");
+		return -EINVAL;
+	}
 
 	if (ulp_flow_db_validate_flow_func(ulp_ctx, flow_id, func_id) ==
 	    false) {
@@ -284,23 +300,24 @@ bnxt_ulp_flow_flush(struct rte_eth_dev *eth_dev,
 {
 	struct bnxt_ulp_context *ulp_ctx;
 	int32_t ret = 0;
-	struct bnxt *bp;
 	uint16_t func_id;
 
 	ulp_ctx = bnxt_ulp_eth_dev_ptr2_cntxt_get(eth_dev);
 	if (!ulp_ctx) {
-		BNXT_TF_DBG(DEBUG, "ULP context is not initialized\n");
 		return ret;
 	}
-	bp = eth_dev->data->dev_private;
 
 	/* Free the resources for the last device */
-	if (ulp_ctx_deinit_allowed(bp)) {
+	if (ulp_ctx_deinit_allowed(ulp_ctx)) {
 		ret = ulp_flow_db_session_flow_flush(ulp_ctx);
 	} else if (bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctx)) {
-		func_id = bnxt_get_fw_func_id(eth_dev->data->port_id,
-					      BNXT_ULP_INTF_TYPE_INVALID);
-		ret = ulp_flow_db_function_flow_flush(ulp_ctx, func_id);
+		ret = ulp_port_db_port_func_id_get(ulp_ctx,
+						   eth_dev->data->port_id,
+						   &func_id);
+		if (!ret)
+			ret = ulp_flow_db_function_flow_flush(ulp_ctx, func_id);
+		else
+			BNXT_TF_DBG(ERR, "convert port to func id failed\n");
 	}
 	if (ret)
 		rte_flow_error_set(error, ret,

drivers/net/bnxt/tf_ulp/ulp_port_db.c

@@ -540,3 +540,44 @@ ulp_port_db_dev_func_id_to_ulp_index(struct bnxt_ulp_context *ulp_ctxt,
 	*ifindex = port_db->ulp_func_id_tbl[func_id].ifindex;
 	return 0;
 }
+
+/*
+ * Api to get the function id for a given port id.
+ *
+ * ulp_ctxt [in] Ptr to ulp context
+ * port_id [in] dpdk port id
+ * func_id [out] the function id of the given ifindex.
+ *
+ * Returns 0 on success or negative number on failure.
+ */
+int32_t
+ulp_port_db_port_func_id_get(struct bnxt_ulp_context *ulp_ctxt,
+			     uint16_t port_id, uint16_t *func_id)
+{
+	struct bnxt_ulp_port_db *port_db;
+	uint32_t ifindex;
+
+	port_db = bnxt_ulp_cntxt_ptr2_port_db_get(ulp_ctxt);
+	if (!port_db || port_id >= RTE_MAX_ETHPORTS) {
+		BNXT_TF_DBG(ERR, "Invalid Arguments\n");
+		return -EINVAL;
+	}
+	ifindex = port_db->dev_port_list[port_id];
+	if (!ifindex)
+		return -ENOENT;
+
+	switch (port_db->ulp_intf_list[ifindex].type) {
+	case BNXT_ULP_INTF_TYPE_TRUSTED_VF:
+	case BNXT_ULP_INTF_TYPE_PF:
+		*func_id =  port_db->ulp_intf_list[ifindex].drv_func_id;
+		break;
+	case BNXT_ULP_INTF_TYPE_VF:
+	case BNXT_ULP_INTF_TYPE_VF_REP:
+		*func_id =  port_db->ulp_intf_list[ifindex].vf_func_id;
+		break;
+	default:
+		*func_id = 0;
+		break;
+	}
+	return 0;
+}

drivers/net/bnxt/tf_ulp/ulp_port_db.h

@@ -259,4 +259,17 @@ int32_t
 ulp_port_db_dev_func_id_to_ulp_index(struct bnxt_ulp_context *ulp_ctxt,
 				     uint32_t func_id, uint32_t *ifindex);
 
+/*
+ * Api to get the function id for a given port id.
+ *
+ * ulp_ctxt [in] Ptr to ulp context
+ * port_id [in] dpdk port id
+ * func_id [out] the function id of the given ifindex.
+ *
+ * Returns 0 on success or negative number on failure.
+ */
+int32_t
+ulp_port_db_port_func_id_get(struct bnxt_ulp_context *ulp_ctxt,
+			     uint16_t port_id, uint16_t *func_id);
+
 #endif /* _ULP_PORT_DB_H_ */