[PATCH 02/14] net/xsc: add TSO support

[Renyong Wan]

Introduce TCP segmentation offload (TSO) support for xsc PMD.

Signed-off-by: Rong Qian <qianr at yunsilicon.com>
Signed-off-by: Renyong Wan <wanry at yunsilicon.com>
---
 doc/guides/nics/features/xsc.ini |  1 +
 drivers/net/xsc/xsc_ethdev.c     |  3 +--
 drivers/net/xsc/xsc_tx.c         | 12 +++++++-----
 drivers/net/xsc/xsc_tx.h         |  3 +--
 drivers/net/xsc/xsc_vfio.c       |  4 +++-
 5 files changed, 13 insertions(+), 10 deletions(-)

diff --git a/doc/guides/nics/features/xsc.ini b/doc/guides/nics/features/xsc.ini
index e0f7b0bc1f..3b02289764 100644
--- a/doc/guides/nics/features/xsc.ini
+++ b/doc/guides/nics/features/xsc.ini
@@ -5,6 +5,7 @@
 ;
 [Features]
 MTU update           = Y
+TSO                  = Y
 RSS hash             = Y
 RSS key update       = Y
 RSS reta update      = Y
diff --git a/drivers/net/xsc/xsc_ethdev.c b/drivers/net/xsc/xsc_ethdev.c
index 79c4e13cd4..9a70be0543 100644
--- a/drivers/net/xsc/xsc_ethdev.c
+++ b/drivers/net/xsc/xsc_ethdev.c
@@ -223,7 +223,6 @@ xsc_txq_start(struct xsc_ethdev_priv *priv)
 {
 	struct xsc_txq_data *txq_data;
 	struct rte_eth_dev *dev = priv->eth_dev;
-	uint64_t offloads = dev->data->dev_conf.txmode.offloads;
 	uint16_t i;
 	int ret;
 	size_t size;
@@ -239,7 +238,7 @@ xsc_txq_start(struct xsc_ethdev_priv *priv)
 		if (txq_data == NULL)
 			goto error;
 		xsc_txq_elts_alloc(txq_data);
-		ret = xsc_txq_obj_new(priv->xdev, txq_data, offloads, i);
+		ret = xsc_txq_obj_new(priv->xdev, txq_data, i);
 		if (ret < 0)
 			goto error;
 		dev->data->tx_queue_state[i] = RTE_ETH_QUEUE_STATE_STARTED;
diff --git a/drivers/net/xsc/xsc_tx.c b/drivers/net/xsc/xsc_tx.c
index d1a0f3284b..07888a5641 100644
--- a/drivers/net/xsc/xsc_tx.c
+++ b/drivers/net/xsc/xsc_tx.c
@@ -26,8 +26,7 @@ xsc_txq_elts_alloc(struct xsc_txq_data *txq_data)
 }
 
 int
-xsc_txq_obj_new(struct xsc_dev *xdev, struct xsc_txq_data *txq_data,
-		uint64_t offloads, uint16_t idx)
+xsc_txq_obj_new(struct xsc_dev *xdev, struct xsc_txq_data *txq_data, uint16_t idx)
 {
 	int ret = 0;
 	struct xsc_tx_cq_params cq_params = {0};
@@ -57,7 +56,7 @@ xsc_txq_obj_new(struct xsc_dev *xdev, struct xsc_txq_data *txq_data,
 		    txq_data->cq_db, txq_data->cqn);
 
 	qp_params.cq = txq_data->cq;
-	qp_params.tx_offloads = offloads;
+	qp_params.tx_offloads = txq_data->offloads;
 	qp_params.port_id = txq_data->port_id;
 	qp_params.qp_id = idx;
 	qp_params.elts_n = txq_data->elts_n;
@@ -76,6 +75,7 @@ xsc_txq_obj_new(struct xsc_dev *xdev, struct xsc_txq_data *txq_data,
 	txq_data->wqe_m = txq_data->wqe_s - 1;
 	txq_data->wqe_ds_n = rte_log2_u32(xdev->hwinfo.send_seg_num);
 	txq_data->qp_db =  qp_info.qp_db;
+	txq_data->tso_en = qp_info.tso_en ? 1 : 0;
 
 	txq_data->cq_ci = 0;
 	txq_data->cq_pi = 0;
@@ -83,9 +83,11 @@ xsc_txq_obj_new(struct xsc_dev *xdev, struct xsc_txq_data *txq_data,
 	txq_data->wqe_pi = 0;
 	txq_data->wqe_comp = 0;
 
-	PMD_DRV_LOG(INFO, "Create tx qp, wqe_s:%d, wqe_n:%d, qp_db=%p, qpn:%u",
+	PMD_DRV_LOG(INFO, "Create tx qp, wqe_s:%d, wqe_n:%d, qp_db=%p, qpn:%u, %s",
 		    txq_data->wqe_s, txq_data->wqe_n,
-		    txq_data->qp_db, txq_data->qpn);
+		    txq_data->qp_db, txq_data->qpn,
+		    txq_data->tso_en ? "tso" : "non-tso");
+
 	return 0;
 
 error:
diff --git a/drivers/net/xsc/xsc_tx.h b/drivers/net/xsc/xsc_tx.h
index 88419dd3a0..a6a034a8ea 100644
--- a/drivers/net/xsc/xsc_tx.h
+++ b/drivers/net/xsc/xsc_tx.h
@@ -53,8 +53,7 @@ struct __rte_cache_aligned xsc_txq_data {
 };
 
 uint16_t xsc_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n);
-int xsc_txq_obj_new(struct xsc_dev *xdev, struct xsc_txq_data *txq_data,
-		    uint64_t offloads, uint16_t idx);
+int xsc_txq_obj_new(struct xsc_dev *xdev, struct xsc_txq_data *txq_data, uint16_t idx);
 void xsc_txq_elts_alloc(struct xsc_txq_data *txq_data);
 void xsc_txq_obj_release(struct xsc_dev *xdev, struct xsc_txq_data *txq_data);
 void xsc_txq_elts_free(struct xsc_txq_data *txq_data);
diff --git a/drivers/net/xsc/xsc_vfio.c b/drivers/net/xsc/xsc_vfio.c
index 857fa449f0..f61cf92569 100644
--- a/drivers/net/xsc/xsc_vfio.c
+++ b/drivers/net/xsc/xsc_vfio.c
@@ -649,6 +649,7 @@ xsc_vfio_tx_qp_create(struct xsc_dev *xdev, struct xsc_tx_qp_params *qp_params,
 	uint64_t iova;
 	char name[RTE_ETH_NAME_MAX_LEN] = {0};
 	void *cmd_buf = NULL;
+	bool tso_en = !!(qp_params->tx_offloads & RTE_ETH_TX_OFFLOAD_TCP_TSO);
 
 	qp = rte_zmalloc(NULL, sizeof(struct xsc_vfio_qp), 0);
 	if (qp == NULL) {
@@ -689,7 +690,7 @@ xsc_vfio_tx_qp_create(struct xsc_dev *xdev, struct xsc_tx_qp_params *qp_params,
 	in->hdr.opcode = rte_cpu_to_be_16(XSC_CMD_OP_CREATE_QP);
 	in->req.input_qpn = 0;
 	in->req.pa_num = rte_cpu_to_be_16(pa_num);
-	in->req.qp_type = XSC_QUEUE_TYPE_RAW_TX;
+	in->req.qp_type = tso_en ? XSC_QUEUE_TYPE_RAW_TSO : XSC_QUEUE_TYPE_RAW_TX;
 	in->req.log_sq_sz = log_sq_sz;
 	in->req.log_rq_sz = log_rq_sz;
 	in->req.dma_direct = 0;
@@ -717,6 +718,7 @@ xsc_vfio_tx_qp_create(struct xsc_dev *xdev, struct xsc_tx_qp_params *qp_params,
 	qp_info->qpn = qp->qpn;
 	qp_info->wqes = (struct xsc_wqe *)qp->mz->addr;
 	qp_info->wqe_n = rte_log2_u32(wqe_s);
+	qp_info->tso_en = tso_en ? 1 : 0;
 
 	if (xsc_dev_is_vf(xdev))
 		qp_info->qp_db = (uint32_t *)((uint8_t *)xdev->bar_addr + XSC_VF_TX_DB_ADDR);
-- 
2.25.1