[dpdk-dev] [PATCH v2 2/2] net/i40e: convert to new Tx offloads API

[Yanglong Wu <yanglong.wu@intel.com>]

Ethdev Tx offloads API has changed since:
commit cba7f53b717d ("ethdev: introduce Tx queue offloads API")
This commit support the new Tx offloads API.

Signed-off-by: Yanglong Wu <yanglong.wu@intel.com>
---
 drivers/net/i40e/i40e_ethdev.c    |  1 +
 drivers/net/i40e/i40e_ethdev_vf.c |  1 +
 drivers/net/i40e/i40e_rxtx.c      | 24 ++++++++++++++++++++++++
 drivers/net/i40e/i40e_rxtx.h      |  1 +
 4 files changed, 27 insertions(+)
---
v2:
Adding offload requests checking and
reworking patch according to review comments
---
diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 06f11dd23..5f520d2bc 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -3231,6 +3231,7 @@ i40e_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
 		DEV_RX_OFFLOAD_VLAN_EXTEND |
 		DEV_RX_OFFLOAD_VLAN_FILTER;
 
+	dev_info->tx_queue_offload_capa = 0;
 	dev_info->tx_offload_capa =
 		DEV_TX_OFFLOAD_VLAN_INSERT |
 		DEV_TX_OFFLOAD_QINQ_INSERT |
diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c
index cb338def9..d04cd28ae 100644
--- a/drivers/net/i40e/i40e_ethdev_vf.c
+++ b/drivers/net/i40e/i40e_ethdev_vf.c
@@ -2185,6 +2185,7 @@ i40evf_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
 		DEV_RX_OFFLOAD_CRC_STRIP |
 		DEV_RX_OFFLOAD_SCATTER;
 
+	dev_info->tx_queue_offload_capa = 0;
 	dev_info->tx_offload_capa =
 		DEV_TX_OFFLOAD_VLAN_INSERT |
 		DEV_TX_OFFLOAD_QINQ_INSERT |
diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c
index 60cbb4d9c..a68be4ab1 100644
--- a/drivers/net/i40e/i40e_rxtx.c
+++ b/drivers/net/i40e/i40e_rxtx.c
@@ -1998,6 +1998,20 @@ i40e_dev_tx_descriptor_status(void *tx_queue, uint16_t offset)
 	return RTE_ETH_TX_DESC_FULL;
 }
 
+static int
+i40e_check_tx_queue_offloads(struct rte_eth_dev *dev, uint64_t requested)
+{
+	struct rte_eth_dev_info dev_info;
+	uint64_t mandatory = dev->data->dev_conf.txmode.offloads;
+	uint64_t supported; /* All per port offloads */
+
+	dev->dev_ops->dev_infos_get(dev, &dev_info);
+	supported = dev_info.tx_offload_capa ^ dev_info.tx_queue_offload_capa;
+	if ((requested & dev_info.tx_offload_capa) != requested)
+		return 0; /* requested range check */
+	return !((mandatory ^ requested) & supported);
+}
+
 int
 i40e_dev_tx_queue_setup(struct rte_eth_dev *dev,
 			uint16_t queue_idx,
@@ -2015,6 +2029,16 @@ i40e_dev_tx_queue_setup(struct rte_eth_dev *dev,
 	uint16_t tx_rs_thresh, tx_free_thresh;
 	uint16_t reg_idx, i, base, bsf, tc_mapping;
 	int q_offset;
+	struct rte_eth_dev_info dev_info;
+
+	if (!i40e_check_tx_queue_offloads(dev, tx_conf->offloads)) {
+		dev->dev_ops->dev_infos_get(dev, &dev_info);
+		PMD_INIT_LOG(ERR, "%p: Tx queue offloads 0x%" PRIx64
+			" don't match port  offloads 0x%" PRIx64
+			" or supported offloads 0x%" PRIx64,
+			(void *)dev, tx_conf->offloads,
+			dev->data->dev_conf.txmode.offloads,
+			dev_info.tx_offload_capa);
 
 	if (hw->mac.type == I40E_MAC_VF || hw->mac.type == I40E_MAC_X722_VF) {
 		vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
diff --git a/drivers/net/i40e/i40e_rxtx.h b/drivers/net/i40e/i40e_rxtx.h
index cb5f8c714..10feec4a2 100644
--- a/drivers/net/i40e/i40e_rxtx.h
+++ b/drivers/net/i40e/i40e_rxtx.h
@@ -149,6 +149,7 @@ struct i40e_tx_queue {
 	bool q_set; /**< indicate if tx queue has been configured */
 	bool tx_deferred_start; /**< don't start this queue in dev start */
 	uint8_t dcb_tc;         /**< Traffic class of tx queue */
+	uint64_t offloads; /**< Tx offload flags of DEV_RX_OFFLOAD_* */
 };
 
 /** Offload features */
-- 
2.11.0