Add support to get link speed, duplex mode and state of VF device.
Signed-off-by: Jiawen Wu <jiawe...@trustnetic.com>
---
doc/guides/nics/features/txgbe_vf.ini | 1 +
drivers/net/txgbe/base/txgbe_vf.c | 100 ++++++++++++++++++++++++++
drivers/net/txgbe/base/txgbe_vf.h | 2 +
drivers/net/txgbe/txgbe_ethdev_vf.c | 9 +++
4 files changed, 112 insertions(+)
diff --git a/doc/guides/nics/features/txgbe_vf.ini
b/doc/guides/nics/features/txgbe_vf.ini
index 574287cc7..4f1f801d3 100644
--- a/doc/guides/nics/features/txgbe_vf.ini
+++ b/doc/guides/nics/features/txgbe_vf.ini
@@ -4,6 +4,7 @@
; Refer to default.ini for the full list of available PMD features.
;
[Features]
+Link status = Y
Rx interrupt = Y
CRC offload = P
VLAN offload = P
diff --git a/drivers/net/txgbe/base/txgbe_vf.c
b/drivers/net/txgbe/base/txgbe_vf.c
index bcd34bfa2..5183c0ac7 100644
--- a/drivers/net/txgbe/base/txgbe_vf.c
+++ b/drivers/net/txgbe/base/txgbe_vf.c
@@ -27,6 +27,9 @@ s32 txgbe_init_ops_vf(struct txgbe_hw *hw)
mac->stop_hw = txgbe_stop_hw_vf;
mac->negotiate_api_version = txgbevf_negotiate_api_version;
+ /* Link */
+ mac->check_link = txgbe_check_mac_link_vf;
+
/* RAR, Multicast, VLAN */
mac->set_rar = txgbe_set_rar_vf;
mac->set_uc_addr = txgbevf_set_uc_addr_vf;
@@ -297,6 +300,103 @@ s32 txgbevf_set_uc_addr_vf(struct txgbe_hw *hw, u32
index, u8 *addr)
return ret_val;
}
+/**
+ * txgbe_check_mac_link_vf - Get link/speed status
+ * @hw: pointer to hardware structure
+ * @speed: pointer to link speed
+ * @link_up: true is link is up, false otherwise
+ * @autoneg_wait_to_complete: true when waiting for completion is needed
+ *
+ * Reads the links register to determine if link is up and the current speed
+ **/
+s32 txgbe_check_mac_link_vf(struct txgbe_hw *hw, u32 *speed,
+ bool *link_up, bool wait_to_complete)
+{
+ /**
+ * for a quick link status checking, wait_to_compelet == 0,
+ * skip PF link status checking
+ */
+ bool no_pflink_check = wait_to_complete == 0;
+ struct txgbe_mbx_info *mbx = &hw->mbx;
+ struct txgbe_mac_info *mac = &hw->mac;
+ s32 ret_val = 0;
+ u32 links_reg;
+ u32 in_msg = 0;
+ UNREFERENCED_PARAMETER(wait_to_complete);
+
+ /* If we were hit with a reset drop the link */
+ if (!mbx->check_for_rst(hw, 0) || !mbx->timeout)
+ mac->get_link_status = true;
+
+ if (!mac->get_link_status)
+ goto out;
+
+ /* if link status is down no point in checking to see if pf is up */
+ links_reg = rd32(hw, TXGBE_VFSTATUS);
+ if (!(links_reg & TXGBE_VFSTATUS_UP))
+ goto out;
+
+ /* for SFP+ modules and DA cables it can take up to 500usecs
+ * before the link status is correct
+ */
+ if (mac->type == txgbe_mac_raptor_vf && wait_to_complete) {
+ if (po32m(hw, TXGBE_VFSTATUS, TXGBE_VFSTATUS_UP,
+ 0, NULL, 5, 100))
+ goto out;
+ }
+
+ switch (links_reg & TXGBE_VFSTATUS_BW_MASK) {
+ case TXGBE_VFSTATUS_BW_10G:
+ *speed = TXGBE_LINK_SPEED_10GB_FULL;
+ break;
+ case TXGBE_VFSTATUS_BW_1G:
+ *speed = TXGBE_LINK_SPEED_1GB_FULL;
+ break;
+ case TXGBE_VFSTATUS_BW_100M:
+ *speed = TXGBE_LINK_SPEED_100M_FULL;
+ break;
+ default:
+ *speed = TXGBE_LINK_SPEED_UNKNOWN;
+ }
+
+ if (no_pflink_check) {
+ if (*speed == TXGBE_LINK_SPEED_UNKNOWN)
+ mac->get_link_status = true;
+ else
+ mac->get_link_status = false;
+
+ goto out;
+ }
+
+ /* if the read failed it could just be a mailbox collision, best wait
+ * until we are called again and don't report an error
+ */
+ if (mbx->read(hw, &in_msg, 1, 0))
+ goto out;
+
+ if (!(in_msg & TXGBE_VT_MSGTYPE_CTS)) {
+ /* msg is not CTS and is NACK we must have lost CTS status */
+ if (in_msg & TXGBE_VT_MSGTYPE_NACK)
+ ret_val = -1;
+ goto out;
+ }
+
+ /* the pf is talking, if we timed out in the past we reinit */
+ if (!mbx->timeout) {
+ ret_val = -1;
+ goto out;
+ }
+
+ /* if we passed all the tests above then the link is up and we no
+ * longer need to check for link
+ */
+ mac->get_link_status = false;
+
+out:
+ *link_up = !mac->get_link_status;
+ return ret_val;
+}
+
/**
* txgbevf_negotiate_api_version - Negotiate supported API version
* @hw: pointer to the HW structure
diff --git a/drivers/net/txgbe/base/txgbe_vf.h
b/drivers/net/txgbe/base/txgbe_vf.h
index f8c6532f6..f40a8f084 100644
--- a/drivers/net/txgbe/base/txgbe_vf.h
+++ b/drivers/net/txgbe/base/txgbe_vf.h
@@ -15,6 +15,8 @@ s32 txgbe_start_hw_vf(struct txgbe_hw *hw);
s32 txgbe_reset_hw_vf(struct txgbe_hw *hw);
s32 txgbe_stop_hw_vf(struct txgbe_hw *hw);
s32 txgbe_get_mac_addr_vf(struct txgbe_hw *hw, u8 *mac_addr);
+s32 txgbe_check_mac_link_vf(struct txgbe_hw *hw, u32 *speed,
+ bool *link_up, bool autoneg_wait_to_complete);
s32 txgbe_set_rar_vf(struct txgbe_hw *hw, u32 index, u8 *addr, u32 vmdq,
u32 enable_addr);
s32 txgbevf_set_uc_addr_vf(struct txgbe_hw *hw, u32 index, u8 *addr);
diff --git a/drivers/net/txgbe/txgbe_ethdev_vf.c
b/drivers/net/txgbe/txgbe_ethdev_vf.c
index 5e0297da7..3936f41b4 100644
--- a/drivers/net/txgbe/txgbe_ethdev_vf.c
+++ b/drivers/net/txgbe/txgbe_ethdev_vf.c
@@ -18,6 +18,8 @@
#define TXGBEVF_PMD_NAME "rte_txgbevf_pmd" /* PMD name */
static int txgbevf_dev_info_get(struct rte_eth_dev *dev,
struct rte_eth_dev_info *dev_info);
+static int txgbevf_dev_link_update(struct rte_eth_dev *dev,
+ int wait_to_complete);
static int txgbevf_dev_close(struct rte_eth_dev *dev);
static void txgbevf_intr_disable(struct rte_eth_dev *dev);
static void txgbevf_intr_enable(struct rte_eth_dev *dev);
@@ -321,6 +323,12 @@ txgbevf_dev_info_get(struct rte_eth_dev *dev,
return 0;
}
+static int
+txgbevf_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
+{
+ return txgbe_dev_link_update_share(dev, wait_to_complete);
+}
+
/*
* Virtual Function operations
*/
@@ -656,6 +664,7 @@ txgbevf_dev_interrupt_handler(void *param)
* operation have been implemented
*/
static const struct eth_dev_ops txgbevf_eth_dev_ops = {
+ .link_update = txgbevf_dev_link_update,
.dev_infos_get = txgbevf_dev_info_get,
.rx_queue_intr_enable = txgbevf_dev_rx_queue_intr_enable,
.rx_queue_intr_disable = txgbevf_dev_rx_queue_intr_disable,
--
2.27.0
