[dpdk-dev] [PATCH] net/i40e: fix inappropriate config during flow validate

[Murphy Yang <murphyx.yang@intel.com>]

The configuration of FDIR input set should not be set
during flow validate. It should be set when flow create.

Fixes: fe5d0e85b713 ("net/i40e: fix flow director flex configuration")
Fixes: 15018d79f0be ("net/i40e: add FDIR support for GTP-C and GTP-U")

Signed-off-by: Murphy Yang <murphyx.yang@intel.com>
---
 drivers/net/i40e/i40e_ethdev.h |  1 +
 drivers/net/i40e/i40e_fdir.c   | 88 +++++++++++++++++++++++++++++++
 drivers/net/i40e/i40e_flow.c   | 95 +++-------------------------------
 3 files changed, 96 insertions(+), 88 deletions(-)

diff --git a/drivers/net/i40e/i40e_ethdev.h b/drivers/net/i40e/i40e_ethdev.h
index 1e8f5d3a87..c6ec071f44 100644
--- a/drivers/net/i40e/i40e_ethdev.h
+++ b/drivers/net/i40e/i40e_ethdev.h
@@ -631,6 +631,7 @@ struct i40e_fdir_flow_ext {
 	uint8_t raw_id;
 	uint8_t is_vf;   /* 1 for VF, 0 for port dev */
 	uint16_t dst_id; /* VF ID, available when is_vf is 1*/
+	uint64_t input_set;
 	bool inner_ip;   /* If there is inner ip */
 	enum i40e_fdir_ip_type iip_type; /* ip type for inner ip */
 	enum i40e_fdir_ip_type oip_type; /* ip type for outer ip */
diff --git a/drivers/net/i40e/i40e_fdir.c b/drivers/net/i40e/i40e_fdir.c
index c572d003cb..af0c00de04 100644
--- a/drivers/net/i40e/i40e_fdir.c
+++ b/drivers/net/i40e/i40e_fdir.c
@@ -1588,6 +1588,83 @@ i40e_flow_set_fdir_flex_msk(struct i40e_pf *pf,
 	pf->fdir.flex_mask_flag[pctype] = 1;
 }
 
+static int
+i40e_flow_set_fdir_inset(struct i40e_pf *pf,
+			 enum i40e_filter_pctype pctype,
+			 uint64_t input_set)
+{
+	uint32_t mask_reg[I40E_INSET_MASK_NUM_REG] = {0};
+	struct i40e_hw *hw = I40E_PF_TO_HW(pf);
+	uint64_t inset_reg = 0;
+	int i, num;
+
+	/* Check if the input set is valid */
+	if (i40e_validate_input_set(pctype, RTE_ETH_FILTER_FDIR,
+				    input_set) != 0) {
+		PMD_DRV_LOG(ERR, "Invalid input set");
+		return -EINVAL;
+	}
+
+	/* Check if the configuration is conflicted */
+	if (pf->fdir.inset_flag[pctype] &&
+	    memcmp(&pf->fdir.input_set[pctype], &input_set, sizeof(uint64_t)))
+		return -1;
+
+	if (pf->fdir.inset_flag[pctype] &&
+	    !memcmp(&pf->fdir.input_set[pctype], &input_set, sizeof(uint64_t)))
+		return 0;
+
+	num = i40e_generate_inset_mask_reg(input_set, mask_reg,
+					   I40E_INSET_MASK_NUM_REG);
+	if (num < 0)
+		return -EINVAL;
+
+	if (pf->support_multi_driver) {
+		for (i = 0; i < num; i++)
+			if (i40e_read_rx_ctl(hw,
+					I40E_GLQF_FD_MSK(i, pctype)) !=
+					mask_reg[i]) {
+				PMD_DRV_LOG(ERR, "Input set setting is not"
+						" supported with"
+						" `support-multi-driver`"
+						" enabled!");
+				return -EPERM;
+			}
+		for (i = num; i < I40E_INSET_MASK_NUM_REG; i++)
+			if (i40e_read_rx_ctl(hw,
+					I40E_GLQF_FD_MSK(i, pctype)) != 0) {
+				PMD_DRV_LOG(ERR, "Input set setting is not"
+						" supported with"
+						" `support-multi-driver`"
+						" enabled!");
+				return -EPERM;
+			}
+
+	} else {
+		for (i = 0; i < num; i++)
+			i40e_check_write_reg(hw, I40E_GLQF_FD_MSK(i, pctype),
+				mask_reg[i]);
+		/*clear unused mask registers of the pctype */
+		for (i = num; i < I40E_INSET_MASK_NUM_REG; i++)
+			i40e_check_write_reg(hw,
+					I40E_GLQF_FD_MSK(i, pctype), 0);
+	}
+
+	inset_reg |= i40e_translate_input_set_reg(hw->mac.type, input_set);
+
+	i40e_check_write_reg(hw, I40E_PRTQF_FD_INSET(pctype, 0),
+			     (uint32_t)(inset_reg & UINT32_MAX));
+	i40e_check_write_reg(hw, I40E_PRTQF_FD_INSET(pctype, 1),
+			     (uint32_t)((inset_reg >>
+					 I40E_32_BIT_WIDTH) & UINT32_MAX));
+
+	I40E_WRITE_FLUSH(hw);
+
+	pf->fdir.input_set[pctype] = input_set;
+	pf->fdir.inset_flag[pctype] = 1;
+	return 0;
+}
+
 static inline unsigned char *
 i40e_find_available_buffer(struct rte_eth_dev *dev)
 {
@@ -1686,6 +1763,17 @@ i40e_flow_add_del_fdir_filter(struct rte_eth_dev *dev,
 
 	if (add) {
 		if (filter->input.flow_ext.is_flex_flow) {
+			ret = i40e_flow_set_fdir_inset(pf, pctype,
+					filter->input.flow_ext.input_set);
+			if (ret == -1) {
+				PMD_DRV_LOG(ERR, "Conflict with the"
+					    " first rule's input set.");
+				return -EINVAL;
+			} else if (ret == -EINVAL) {
+				PMD_DRV_LOG(ERR, "Invalid pattern mask.");
+				return -EINVAL;
+			}
+
 			for (i = 0; i < filter->input.flow_ext.raw_id; i++) {
 				layer_idx = filter->input.flow_ext.layer_idx;
 				field_idx = layer_idx * I40E_MAX_FLXPLD_FIED + i;
diff --git a/drivers/net/i40e/i40e_flow.c b/drivers/net/i40e/i40e_flow.c
index 3e514d5f38..d1d14c5ae3 100644
--- a/drivers/net/i40e/i40e_flow.c
+++ b/drivers/net/i40e/i40e_flow.c
@@ -2243,83 +2243,6 @@ i40e_flow_check_raw_item(const struct rte_flow_item *item,
 	return 0;
 }
 
-static int
-i40e_flow_set_fdir_inset(struct i40e_pf *pf,
-			 enum i40e_filter_pctype pctype,
-			 uint64_t input_set)
-{
-	struct i40e_hw *hw = I40E_PF_TO_HW(pf);
-	uint64_t inset_reg = 0;
-	uint32_t mask_reg[I40E_INSET_MASK_NUM_REG] = {0};
-	int i, num;
-
-	/* Check if the input set is valid */
-	if (i40e_validate_input_set(pctype, RTE_ETH_FILTER_FDIR,
-				    input_set) != 0) {
-		PMD_DRV_LOG(ERR, "Invalid input set");
-		return -EINVAL;
-	}
-
-	/* Check if the configuration is conflicted */
-	if (pf->fdir.inset_flag[pctype] &&
-	    memcmp(&pf->fdir.input_set[pctype], &input_set, sizeof(uint64_t)))
-		return -1;
-
-	if (pf->fdir.inset_flag[pctype] &&
-	    !memcmp(&pf->fdir.input_set[pctype], &input_set, sizeof(uint64_t)))
-		return 0;
-
-	num = i40e_generate_inset_mask_reg(input_set, mask_reg,
-					   I40E_INSET_MASK_NUM_REG);
-	if (num < 0)
-		return -EINVAL;
-
-	if (pf->support_multi_driver) {
-		for (i = 0; i < num; i++)
-			if (i40e_read_rx_ctl(hw,
-					I40E_GLQF_FD_MSK(i, pctype)) !=
-					mask_reg[i]) {
-				PMD_DRV_LOG(ERR, "Input set setting is not"
-						" supported with"
-						" `support-multi-driver`"
-						" enabled!");
-				return -EPERM;
-			}
-		for (i = num; i < I40E_INSET_MASK_NUM_REG; i++)
-			if (i40e_read_rx_ctl(hw,
-					I40E_GLQF_FD_MSK(i, pctype)) != 0) {
-				PMD_DRV_LOG(ERR, "Input set setting is not"
-						" supported with"
-						" `support-multi-driver`"
-						" enabled!");
-				return -EPERM;
-			}
-
-	} else {
-		for (i = 0; i < num; i++)
-			i40e_check_write_reg(hw, I40E_GLQF_FD_MSK(i, pctype),
-				mask_reg[i]);
-		/*clear unused mask registers of the pctype */
-		for (i = num; i < I40E_INSET_MASK_NUM_REG; i++)
-			i40e_check_write_reg(hw,
-					I40E_GLQF_FD_MSK(i, pctype), 0);
-	}
-
-	inset_reg |= i40e_translate_input_set_reg(hw->mac.type, input_set);
-
-	i40e_check_write_reg(hw, I40E_PRTQF_FD_INSET(pctype, 0),
-			     (uint32_t)(inset_reg & UINT32_MAX));
-	i40e_check_write_reg(hw, I40E_PRTQF_FD_INSET(pctype, 1),
-			     (uint32_t)((inset_reg >>
-					 I40E_32_BIT_WIDTH) & UINT32_MAX));
-
-	I40E_WRITE_FLUSH(hw);
-
-	pf->fdir.input_set[pctype] = input_set;
-	pf->fdir.inset_flag[pctype] = 1;
-	return 0;
-}
-
 static uint8_t
 i40e_flow_fdir_get_pctype_value(struct i40e_pf *pf,
 				enum rte_flow_item_type item_type,
@@ -3212,18 +3135,14 @@ i40e_flow_parse_fdir_pattern(struct rte_eth_dev *dev,
 
 	/* If customized pctype is not used, set fdir configuration.*/
 	if (!filter->input.flow_ext.customized_pctype) {
-		ret = i40e_flow_set_fdir_inset(pf, pctype, input_set);
-		if (ret == -1) {
-			rte_flow_error_set(error, EINVAL,
-					   RTE_FLOW_ERROR_TYPE_ITEM, item,
-					   "Conflict with the first rule's input set.");
-			return -rte_errno;
-		} else if (ret == -EINVAL) {
-			rte_flow_error_set(error, EINVAL,
-					   RTE_FLOW_ERROR_TYPE_ITEM, item,
-					   "Invalid pattern mask.");
-			return -rte_errno;
+		/* Check if the input set is valid */
+		if (i40e_validate_input_set(pctype, RTE_ETH_FILTER_FDIR,
+						input_set) != 0) {
+			PMD_DRV_LOG(ERR, "Invalid input set");
+			return -EINVAL;
 		}
+
+		filter->input.flow_ext.input_set = input_set;
 	}
 
 	filter->input.pctype = pctype;
-- 
2.17.1