[dpdk-dev] [PATCH v7 10/15] net/i40e: use rte_eth_linkstatus functions

[Stephen Hemminger <stephen@networkplumber.org>]

Use new rte_linkstatus update API

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>

---
 drivers/net/i40e/i40e_ethdev.c    | 43 +++++----------------------------------
 drivers/net/i40e/i40e_ethdev_vf.c | 18 ++--------------
 2 files changed, 7 insertions(+), 54 deletions(-)

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index c4df65df0cf6..15f18776e198 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -628,34 +628,6 @@ static struct rte_pci_driver rte_i40e_pmd = {
 	.remove = eth_i40e_pci_remove,
 };
 
-static inline int
-rte_i40e_dev_atomic_read_link_status(struct rte_eth_dev *dev,
-				     struct rte_eth_link *link)
-{
-	struct rte_eth_link *dst = link;
-	struct rte_eth_link *src = &(dev->data->dev_link);
-
-	if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
-					*(uint64_t *)src) == 0)
-		return -1;
-
-	return 0;
-}
-
-static inline int
-rte_i40e_dev_atomic_write_link_status(struct rte_eth_dev *dev,
-				      struct rte_eth_link *link)
-{
-	struct rte_eth_link *dst = &(dev->data->dev_link);
-	struct rte_eth_link *src = link;
-
-	if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
-					*(uint64_t *)src) == 0)
-		return -1;
-
-	return 0;
-}
-
 RTE_PMD_REGISTER_PCI(net_i40e, rte_i40e_pmd);
 RTE_PMD_REGISTER_PCI_TABLE(net_i40e, pci_id_i40e_map);
 RTE_PMD_REGISTER_KMOD_DEP(net_i40e, "* igb_uio | uio_pci_generic | vfio-pci");
@@ -2347,17 +2319,16 @@ i40e_dev_link_update(struct rte_eth_dev *dev,
 #define MAX_REPEAT_TIME 10  /* 1s (10 * 100ms) in total */
 	struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 	struct i40e_link_status link_status;
-	struct rte_eth_link link, old;
+	struct rte_eth_link link;
 	int status;
 	unsigned rep_cnt = MAX_REPEAT_TIME;
 	bool enable_lse = dev->data->dev_conf.intr_conf.lsc ? true : false;
 
 	memset(&link, 0, sizeof(link));
-	memset(&old, 0, sizeof(old));
-	memset(&link_status, 0, sizeof(link_status));
-	rte_i40e_dev_atomic_read_link_status(dev, &old);
 
 	do {
+		memset(&link_status, 0, sizeof(link_status));
+
 		/* Get link status information from hardware */
 		status = i40e_aq_get_link_info(hw, enable_lse,
 						&link_status, NULL);
@@ -2410,10 +2381,7 @@ i40e_dev_link_update(struct rte_eth_dev *dev,
 			ETH_LINK_SPEED_FIXED);
 
 out:
-	rte_i40e_dev_atomic_write_link_status(dev, &link);
-	if (link.link_status == old.link_status)
-		return -1;
-
+	rte_eth_linkstatus_set(dev, &link);
 	i40e_notify_all_vfs_link_status(dev);
 
 	return 0;
@@ -10034,9 +10002,8 @@ i40e_start_timecounters(struct rte_eth_dev *dev)
 	uint32_t tsync_inc_h;
 
 	/* Get current link speed. */
-	memset(&link, 0, sizeof(link));
 	i40e_dev_link_update(dev, 1);
-	rte_i40e_dev_atomic_read_link_status(dev, &link);
+	rte_eth_linkstatus_get(dev, &link);
 
 	switch (link.link_speed) {
 	case ETH_SPEED_NUM_40G:
diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c
index 6ac3f8c04a50..e34a2bf93787 100644
--- a/drivers/net/i40e/i40e_ethdev_vf.c
+++ b/drivers/net/i40e/i40e_ethdev_vf.c
@@ -1036,20 +1036,6 @@ static const struct rte_pci_id pci_id_i40evf_map[] = {
 	{ .vendor_id = 0, /* sentinel */ },
 };
 
-static inline int
-i40evf_dev_atomic_write_link_status(struct rte_eth_dev *dev,
-				    struct rte_eth_link *link)
-{
-	struct rte_eth_link *dst = &(dev->data->dev_link);
-	struct rte_eth_link *src = link;
-
-	if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
-					*(uint64_t *)src) == 0)
-		return -1;
-
-	return 0;
-}
-
 /* Disable IRQ0 */
 static inline void
 i40evf_disable_irq0(struct i40e_hw *hw)
@@ -2077,6 +2063,7 @@ i40evf_dev_link_update(struct rte_eth_dev *dev,
 	 * while Linux driver does not
 	 */
 
+	memset(&new_link, 0, sizeof(new_link));
 	/* Linux driver PF host */
 	switch (vf->link_speed) {
 	case I40E_LINK_SPEED_100MB:
@@ -2108,8 +2095,7 @@ i40evf_dev_link_update(struct rte_eth_dev *dev,
 	new_link.link_autoneg =
 		dev->data->dev_conf.link_speeds & ETH_LINK_SPEED_FIXED;
 
-	i40evf_dev_atomic_write_link_status(dev, &new_link);
-
+	rte_eth_linkstatus_set(dev, &new_link);
 	return 0;
 }
 
-- 
2.15.1