net/octeontx: add link update

Mark Link status in features.

Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Signed-off-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>

diff --git a/doc/guides/nics/features/octeontx.ini b/doc/guides/nics/features/octeontx.ini
index 259dacc..56b1350 100644 (file)
--- a/doc/guides/nics/features/octeontx.ini
+++ b/doc/guides/nics/features/octeontx.ini
@@ -5,6 +5,7 @@
 ;
 [Features]
 Speed capabilities   = Y
+Link status          = Y
 Lock-free Tx queue   = Y
 Jumbo frame          = Y
 CRC offload          = Y

diff --git a/drivers/net/octeontx/octeontx_ethdev.c b/drivers/net/octeontx/octeontx_ethdev.c
index 6ae345b..2c39d55 100644 (file)
--- a/drivers/net/octeontx/octeontx_ethdev.c
+++ b/drivers/net/octeontx/octeontx_ethdev.c
@@ -53,6 +53,17 @@ struct octeontx_vdev_init_params {
        uint8_t nr_port;
 };
 
+enum octeontx_link_speed {
+       OCTEONTX_LINK_SPEED_SGMII,
+       OCTEONTX_LINK_SPEED_XAUI,
+       OCTEONTX_LINK_SPEED_RXAUI,
+       OCTEONTX_LINK_SPEED_10G_R,
+       OCTEONTX_LINK_SPEED_40G_R,
+       OCTEONTX_LINK_SPEED_RESERVE1,
+       OCTEONTX_LINK_SPEED_QSGMII,
+       OCTEONTX_LINK_SPEED_RESERVE2
+};
+
 /* Parse integer from integer argument */
 static int
 parse_integer_arg(const char *key __rte_unused,
@@ -262,6 +273,94 @@ octeontx_dev_configure(struct rte_eth_dev *dev)
        return 0;
 }
 
+static inline int
+octeontx_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
+octeontx_port_link_status(struct octeontx_nic *nic)
+{
+       int res;
+
+       PMD_INIT_FUNC_TRACE();
+       res = octeontx_bgx_port_link_status(nic->port_id);
+       if (res < 0) {
+               octeontx_log_err("failed to get port %d link status",
+                               nic->port_id);
+               return res;
+       }
+
+       nic->link_up = (uint8_t)res;
+       octeontx_log_dbg("port %d link status %d", nic->port_id, nic->link_up);
+
+       return res;
+}
+
+/*
+ * Return 0 means link status changed, -1 means not changed
+ */
+static int
+octeontx_dev_link_update(struct rte_eth_dev *dev,
+                        int wait_to_complete __rte_unused)
+{
+       struct octeontx_nic *nic = octeontx_pmd_priv(dev);
+       struct rte_eth_link link;
+       int res;
+
+       res = 0;
+       PMD_INIT_FUNC_TRACE();
+
+       res = octeontx_port_link_status(nic);
+       if (res < 0) {
+               octeontx_log_err("failed to request link status %d", res);
+               return res;
+       }
+
+       link.link_status = nic->link_up;
+
+       switch (nic->speed) {
+       case OCTEONTX_LINK_SPEED_SGMII:
+               link.link_speed = ETH_SPEED_NUM_1G;
+               break;
+
+       case OCTEONTX_LINK_SPEED_XAUI:
+               link.link_speed = ETH_SPEED_NUM_10G;
+               break;
+
+       case OCTEONTX_LINK_SPEED_RXAUI:
+       case OCTEONTX_LINK_SPEED_10G_R:
+               link.link_speed = ETH_SPEED_NUM_10G;
+               break;
+       case OCTEONTX_LINK_SPEED_QSGMII:
+               link.link_speed = ETH_SPEED_NUM_5G;
+               break;
+       case OCTEONTX_LINK_SPEED_40G_R:
+               link.link_speed = ETH_SPEED_NUM_40G;
+               break;
+
+       case OCTEONTX_LINK_SPEED_RESERVE1:
+       case OCTEONTX_LINK_SPEED_RESERVE2:
+       default:
+               octeontx_log_err("incorrect link speed %d", nic->speed);
+               break;
+       }
+
+       link.link_duplex = ETH_LINK_AUTONEG;
+       link.link_autoneg = ETH_LINK_SPEED_AUTONEG;
+
+       return octeontx_atomic_write_link_status(dev, &link);
+}
+
 static void
 octeontx_dev_info(struct rte_eth_dev *dev,
                struct rte_eth_dev_info *dev_info)
@@ -302,6 +401,7 @@ octeontx_dev_info(struct rte_eth_dev *dev,
 static const struct eth_dev_ops octeontx_dev_ops = {
        .dev_configure           = octeontx_dev_configure,
        .dev_infos_get           = octeontx_dev_info,
+       .link_update             = octeontx_dev_link_update,
 };
 
 /* Create Ethdev interface per BGX LMAC ports */