[dpdk-dev] [PATCH v6 05/14] net/dpaa2: use ethdev linkstatus helper functions

Ferruh Yigit ferruh.yigit at intel.com
Sun Jan 21 19:59:47 CET 2018


From: Stephen Hemminger <stephen at networkplumber.org>

Use new helper function to update the link status.

Signed-off-by: Stephen Hemminger <stephen at networkplumber.org>
Signed-off-by: Ferruh Yigit <ferruh.yigit at intel.com>
---
v6:
* Use correct APIs
* Keep logic exact same, only use new APIs to get/set link
---
 drivers/net/dpaa2/dpaa2_ethdev.c | 77 +++++++---------------------------------
 1 file changed, 12 insertions(+), 65 deletions(-)

diff --git a/drivers/net/dpaa2/dpaa2_ethdev.c b/drivers/net/dpaa2/dpaa2_ethdev.c
index a0a3d5264..9a3a4182b 100644
--- a/drivers/net/dpaa2/dpaa2_ethdev.c
+++ b/drivers/net/dpaa2/dpaa2_ethdev.c
@@ -57,58 +57,6 @@ static int dpaa2_dev_set_link_up(struct rte_eth_dev *dev);
 static int dpaa2_dev_set_link_down(struct rte_eth_dev *dev);
 static int dpaa2_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu);
 
-/**
- * Atomically reads the link status information from global
- * structure rte_eth_dev.
- *
- * @param dev
- *   - Pointer to the structure rte_eth_dev to read from.
- *   - Pointer to the buffer to be saved with the link status.
- *
- * @return
- *   - On success, zero.
- *   - On failure, negative value.
- */
-static inline int
-dpaa2_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;
-}
-
-/**
- * Atomically writes the link status information into global
- * structure rte_eth_dev.
- *
- * @param dev
- *   - Pointer to the structure rte_eth_dev to read from.
- *   - Pointer to the buffer to be saved with the link status.
- *
- * @return
- *   - On success, zero.
- *   - On failure, negative value.
- */
-static inline int
-dpaa2_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;
-}
-
 static int
 dpaa2_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
 {
@@ -821,7 +769,9 @@ dpaa2_dev_stop(struct rte_eth_dev *dev)
 	struct dpaa2_dev_priv *priv = dev->data->dev_private;
 	struct fsl_mc_io *dpni = (struct fsl_mc_io *)priv->hw;
 	int ret;
-	struct rte_eth_link link;
+	struct rte_eth_link link = {
+		.link_status = ETH_LINK_DOWN,
+	};
 	struct rte_intr_handle *intr_handle = dev->intr_handle;
 
 	PMD_INIT_FUNC_TRACE();
@@ -851,8 +801,7 @@ dpaa2_dev_stop(struct rte_eth_dev *dev)
 	}
 
 	/* clear the recorded link status */
-	memset(&link, 0, sizeof(link));
-	dpaa2_dev_atomic_write_link_status(dev, &link);
+	rte_eth_linkstatus_set(dev, &link);
 }
 
 static void
@@ -862,7 +811,9 @@ dpaa2_dev_close(struct rte_eth_dev *dev)
 	struct dpaa2_dev_priv *priv = dev->data->dev_private;
 	struct fsl_mc_io *dpni = (struct fsl_mc_io *)priv->hw;
 	int i, ret;
-	struct rte_eth_link link;
+	struct rte_eth_link link = {
+		.link_status = ETH_LINK_DOWN,
+	};
 	struct dpaa2_queue *dpaa2_q;
 
 	PMD_INIT_FUNC_TRACE();
@@ -883,8 +834,7 @@ dpaa2_dev_close(struct rte_eth_dev *dev)
 		return;
 	}
 
-	memset(&link, 0, sizeof(link));
-	dpaa2_dev_atomic_write_link_status(dev, &link);
+	rte_eth_linkstatus_set(dev, &link);
 }
 
 static void
@@ -1342,8 +1292,7 @@ dpaa2_dev_link_update(struct rte_eth_dev *dev,
 		RTE_LOG(ERR, PMD, "dpni is NULL\n");
 		return 0;
 	}
-	memset(&old, 0, sizeof(old));
-	dpaa2_dev_atomic_read_link_status(dev, &old);
+	rte_eth_linkstatus_get(dev, &old);
 
 	ret = dpni_get_link_state(dpni, CMD_PRI_LOW, priv->token, &state);
 	if (ret < 0) {
@@ -1365,12 +1314,10 @@ dpaa2_dev_link_update(struct rte_eth_dev *dev,
 	else
 		link.link_duplex = ETH_LINK_FULL_DUPLEX;
 
-	dpaa2_dev_atomic_write_link_status(dev, &link);
+	rte_eth_linkstatus_set(dev, &link);
 
-	if (link.link_status)
-		PMD_DRV_LOG(INFO, "Port %d Link is Up\n", dev->data->port_id);
-	else
-		PMD_DRV_LOG(INFO, "Port %d Link is Down", dev->data->port_id);
+	PMD_DRV_LOG(INFO, "Port %d Link is %s\n", dev->data->port_id,
+		    link.link_status ? "Up" : "Down");
 	return 0;
 }
 
-- 
2.14.3



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