[dpdk-dev] [PATCH v6 2/5] net/fm10k: release port upon close

[Di ChenxuX <chenxux.di@intel.com>]

Set RTE_ETH_DEV_CLOSE_REMOVE upon probe so all the private resources
 for the port can be freed by rte_eth_dev_close().

Signed-off-by: Di ChenxuX <chenxux.di@intel.com>
---
 doc/guides/rel_notes/release_19_11.rst |   4 +
 drivers/net/fm10k/fm10k_ethdev.c       | 100 +++++++++++++------------
 2 files changed, 56 insertions(+), 48 deletions(-)

diff --git a/doc/guides/rel_notes/release_19_11.rst b/doc/guides/rel_notes/release_19_11.rst
index 99de7b0a3..177cd9b4a 100644
--- a/doc/guides/rel_notes/release_19_11.rst
+++ b/doc/guides/rel_notes/release_19_11.rst
@@ -68,6 +68,10 @@ New Features
 
   Added support for the ``RTE_ETH_DEV_CLOSE_REMOVE`` flag.
 
+* **Updated the Intel fm10k driver.**
+
+  Added support for the ``RTE_ETH_DEV_CLOSE_REMOVE`` flag.
+
 
 Removed Items
 -------------
diff --git a/drivers/net/fm10k/fm10k_ethdev.c b/drivers/net/fm10k/fm10k_ethdev.c
index f0f629008..f3048b6a6 100644
--- a/drivers/net/fm10k/fm10k_ethdev.c
+++ b/drivers/net/fm10k/fm10k_ethdev.c
@@ -1202,28 +1202,6 @@ fm10k_dev_queue_release(struct rte_eth_dev *dev)
 	}
 }
 
-static void
-fm10k_dev_close(struct rte_eth_dev *dev)
-{
-	struct fm10k_hw *hw = FM10K_DEV_PRIVATE_TO_HW(dev->data->dev_private);
-
-	PMD_INIT_FUNC_TRACE();
-
-	fm10k_mbx_lock(hw);
-	hw->mac.ops.update_lport_state(hw, hw->mac.dglort_map,
-		MAX_LPORT_NUM, false);
-	fm10k_mbx_unlock(hw);
-
-	/* allow 100ms for device to quiesce */
-	rte_delay_us(FM10K_SWITCH_QUIESCE_US);
-
-	/* Stop mailbox service first */
-	fm10k_close_mbx_service(hw);
-	fm10k_dev_stop(dev);
-	fm10k_dev_queue_release(dev);
-	fm10k_stop_hw(hw);
-}
-
 static int
 fm10k_link_update(struct rte_eth_dev *dev,
 	__rte_unused int wait_to_complete)
@@ -2809,6 +2787,53 @@ fm10k_close_mbx_service(struct fm10k_hw *hw)
 	hw->mbx.ops.disconnect(hw, &hw->mbx);
 }
 
+static void
+fm10k_dev_close(struct rte_eth_dev *dev)
+{
+	struct fm10k_hw *hw = FM10K_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+	struct rte_pci_device *pdev = RTE_ETH_DEV_TO_PCI(dev);
+	struct rte_intr_handle *intr_handle = &pdev->intr_handle;
+
+	PMD_INIT_FUNC_TRACE();
+
+	fm10k_mbx_lock(hw);
+	hw->mac.ops.update_lport_state(hw, hw->mac.dglort_map,
+		MAX_LPORT_NUM, false);
+	fm10k_mbx_unlock(hw);
+
+	/* allow 100ms for device to quiesce */
+	rte_delay_us(FM10K_SWITCH_QUIESCE_US);
+
+	/* Stop mailbox service first */
+	fm10k_close_mbx_service(hw);
+	fm10k_dev_stop(dev);
+	fm10k_dev_queue_release(dev);
+	fm10k_stop_hw(hw);
+
+	dev->dev_ops = NULL;
+	dev->rx_pkt_burst = NULL;
+	dev->tx_pkt_burst = NULL;
+
+	/* disable uio/vfio intr */
+	rte_intr_disable(intr_handle);
+
+	/*PF/VF has different interrupt handling mechanism */
+	if (hw->mac.type == fm10k_mac_pf) {
+		/* disable interrupt */
+		fm10k_dev_disable_intr_pf(dev);
+
+		/* unregister callback func to eal lib */
+		rte_intr_callback_unregister(intr_handle,
+			fm10k_dev_interrupt_handler_pf, (void *)dev);
+	} else {
+		/* disable interrupt */
+		fm10k_dev_disable_intr_vf(dev);
+
+		rte_intr_callback_unregister(intr_handle,
+			fm10k_dev_interrupt_handler_vf, (void *)dev);
+	}
+}
+
 static const struct eth_dev_ops fm10k_eth_dev_ops = {
 	.dev_configure		= fm10k_dev_configure,
 	.dev_start		= fm10k_dev_start,
@@ -3113,6 +3138,11 @@ eth_fm10k_dev_init(struct rte_eth_dev *dev)
 		&dev->data->mac_addrs[0]);
 	}
 
+	/* Pass the information to the rte_eth_dev_close() that it should also
+	 * release the private port resources.
+	 */
+	dev->data->dev_flags |= RTE_ETH_DEV_CLOSE_REMOVE;
+
 	/* Reset the hw statistics */
 	fm10k_stats_reset(dev);
 
@@ -3215,9 +3245,6 @@ eth_fm10k_dev_init(struct rte_eth_dev *dev)
 static int
 eth_fm10k_dev_uninit(struct rte_eth_dev *dev)
 {
-	struct fm10k_hw *hw = FM10K_DEV_PRIVATE_TO_HW(dev->data->dev_private);
-	struct rte_pci_device *pdev = RTE_ETH_DEV_TO_PCI(dev);
-	struct rte_intr_handle *intr_handle = &pdev->intr_handle;
 	PMD_INIT_FUNC_TRACE();
 
 	/* only uninitialize in the primary process */
@@ -3227,29 +3254,6 @@ eth_fm10k_dev_uninit(struct rte_eth_dev *dev)
 	/* safe to close dev here */
 	fm10k_dev_close(dev);
 
-	dev->dev_ops = NULL;
-	dev->rx_pkt_burst = NULL;
-	dev->tx_pkt_burst = NULL;
-
-	/* disable uio/vfio intr */
-	rte_intr_disable(intr_handle);
-
-	/*PF/VF has different interrupt handling mechanism */
-	if (hw->mac.type == fm10k_mac_pf) {
-		/* disable interrupt */
-		fm10k_dev_disable_intr_pf(dev);
-
-		/* unregister callback func to eal lib */
-		rte_intr_callback_unregister(intr_handle,
-			fm10k_dev_interrupt_handler_pf, (void *)dev);
-	} else {
-		/* disable interrupt */
-		fm10k_dev_disable_intr_vf(dev);
-
-		rte_intr_callback_unregister(intr_handle,
-			fm10k_dev_interrupt_handler_vf, (void *)dev);
-	}
-
 	return 0;
 }
 
-- 
2.17.1