[dpdk-dev] [PATCH v18 01/19] net/i40e: i40e support ipn3ke FPGA port bonding

[Rosen Xu]

From: Andy Pei <andy.pei at intel.com>

In ipn3ke, each FPGA network side port bonding to an i40e pf,
each i40e pf link status should get data from FPGA network,
side port. This patch provide bonding relationship.

Signed-off-by: Rosen Xu <rosen.xu at intel.com>
Signed-off-by: Andy Pei <andy.pei at intel.com>
---
 drivers/net/i40e/base/i40e_type.h         |  3 +++
 drivers/net/i40e/i40e_ethdev.c            |  6 ++++++
 drivers/net/i40e/rte_pmd_i40e.c           | 21 +++++++++++++++++++++
 drivers/net/i40e/rte_pmd_i40e.h           | 18 ++++++++++++++++++
 drivers/net/i40e/rte_pmd_i40e_version.map |  8 +++++++-
 5 files changed, 55 insertions(+), 1 deletion(-)

diff --git a/drivers/net/i40e/base/i40e_type.h b/drivers/net/i40e/base/i40e_type.h
index 112866b..06863d7 100644
--- a/drivers/net/i40e/base/i40e_type.h
+++ b/drivers/net/i40e/base/i40e_type.h
@@ -660,6 +660,9 @@ struct i40e_hw {
 	struct i40e_nvm_info nvm;
 	struct i40e_fc_info fc;
 
+	/* switch device is used to get link status when i40e is in ipn3ke */
+	struct rte_eth_dev *switch_dev;
+
 	/* pci info */
 	u16 device_id;
 	u16 vendor_id;
diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 9a81f99..1afddeb 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -1393,6 +1393,9 @@ static inline void i40e_config_automask(struct i40e_pf *pf)
 	hw->adapter_stopped = 0;
 	hw->adapter_closed = 0;
 
+	/* Init switch device pointer */
+	hw->switch_dev = NULL;
+
 	/*
 	 * Switch Tag value should not be identical to either the First Tag
 	 * or Second Tag values. So set something other than common Ethertype
@@ -2906,6 +2909,9 @@ void i40e_flex_payload_reg_set_default(struct i40e_hw *hw)
 	else
 		update_link_aq(hw, &link, enable_lse, wait_to_complete);
 
+	if (hw->switch_dev)
+		rte_eth_linkstatus_get(hw->switch_dev, &link);
+
 	ret = rte_eth_linkstatus_set(dev, &link);
 	i40e_notify_all_vfs_link_status(dev);
 
diff --git a/drivers/net/i40e/rte_pmd_i40e.c b/drivers/net/i40e/rte_pmd_i40e.c
index 4c3c708..fdcb1a4 100644
--- a/drivers/net/i40e/rte_pmd_i40e.c
+++ b/drivers/net/i40e/rte_pmd_i40e.c
@@ -3207,3 +3207,24 @@ int rte_pmd_i40e_flow_add_del_packet_template(
 	I40E_WRITE_FLUSH(hw);
 	return 0;
 }
+
+int
+rte_pmd_i40e_set_switch_dev(uint16_t port_id, struct rte_eth_dev *switch_dev)
+{
+	struct rte_eth_dev *i40e_dev;
+	struct i40e_hw *hw;
+
+	RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV);
+
+	i40e_dev = &rte_eth_devices[port_id];
+	if (!is_i40e_supported(i40e_dev))
+		return -ENOTSUP;
+
+	hw = I40E_DEV_PRIVATE_TO_HW(i40e_dev->data->dev_private);
+	if (!hw)
+		return -1;
+
+	hw->switch_dev = switch_dev;
+
+	return 0;
+}
diff --git a/drivers/net/i40e/rte_pmd_i40e.h b/drivers/net/i40e/rte_pmd_i40e.h
index faac9e2..915cdf0 100644
--- a/drivers/net/i40e/rte_pmd_i40e.h
+++ b/drivers/net/i40e/rte_pmd_i40e.h
@@ -1061,4 +1061,22 @@ int rte_pmd_i40e_inset_set(uint16_t port, uint8_t pctype,
 	return 0;
 }
 
+/**
+ * For ipn3ke, i40e works with FPGA.
+ * In this situation, i40e get link status from fpga,
+ * fpga works as switch_dev for i40e.
+ * This function set switch_dev for i40e.
+ *
+ * @param port_id
+ *    port_id of i40e device to be set switch device.
+ * @param switch_dev
+ *    target switch device from which i40e device to get link status from.
+ * @return
+ *   - (less than 0) if failed.
+ *   - (0) if success.
+ */
+__rte_experimental
+int
+rte_pmd_i40e_set_switch_dev(uint16_t port_id, struct rte_eth_dev *switch_dev);
+
 #endif /* _PMD_I40E_H_ */
diff --git a/drivers/net/i40e/rte_pmd_i40e_version.map b/drivers/net/i40e/rte_pmd_i40e_version.map
index cccd576..ca5bcee 100644
--- a/drivers/net/i40e/rte_pmd_i40e_version.map
+++ b/drivers/net/i40e/rte_pmd_i40e_version.map
@@ -64,4 +64,10 @@ DPDK_18.02 {
 
 	rte_pmd_i40e_inset_get;
 	rte_pmd_i40e_inset_set;
-} DPDK_17.11;
\ No newline at end of file
+} DPDK_17.11;
+
+EXPERIMENTAL {
+	global:
+
+	rte_pmd_i40e_set_switch_dev;
+};
-- 
1.8.3.1