[dpdk-dev,RFC] librte_pmd_virtio: add support for PCI Port Hotplug
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Message ID 1430494084-19762-1-git-send-email-bernard.iremonger@intel.com
State Superseded, archived
Headers show

Commit Message

Iremonger, Bernard May 1, 2015, 3:28 p.m. UTC
This patch depends on the Port Hotplug Framework.
It implements the eth_dev_uninit_t() function for virtio pmd.

Signed-off-by: Bernard Iremonger <bernard.iremonger@intel.com>
---
 lib/librte_pmd_virtio/virtio_ethdev.c |   39 ++++++++++++++++++++++++++++++++-
 1 files changed, 38 insertions(+), 1 deletions(-)

Patch
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diff --git a/lib/librte_pmd_virtio/virtio_ethdev.c b/lib/librte_pmd_virtio/virtio_ethdev.c
index e63dbfb..3c4691f 100644
--- a/lib/librte_pmd_virtio/virtio_ethdev.c
+++ b/lib/librte_pmd_virtio/virtio_ethdev.c
@@ -1,7 +1,7 @@ 
 /*-
  *   BSD LICENSE
  *
- *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
  *   All rights reserved.
  *
  *   Redistribution and use in source and binary forms, with or without
@@ -63,6 +63,7 @@ 
 
 
 static int eth_virtio_dev_init(struct rte_eth_dev *eth_dev);
+static int eth_virtio_dev_uninit(struct rte_eth_dev *eth_dev);
 static int  virtio_dev_configure(struct rte_eth_dev *dev);
 static int  virtio_dev_start(struct rte_eth_dev *dev);
 static void virtio_dev_stop(struct rte_eth_dev *dev);
@@ -1237,12 +1238,48 @@  eth_virtio_dev_init(struct rte_eth_dev *eth_dev)
 	return 0;
 }
 
+
+
+static int
+eth_virtio_dev_uninit(struct rte_eth_dev *eth_dev)
+{
+	struct rte_pci_device *pci_dev;
+	struct virtio_hw *hw = eth_dev->data->dev_private;
+
+	if (rte_eal_process_type() == RTE_PROC_SECONDARY)
+		return -EPERM;
+
+	if (hw->started == 1) {
+		virtio_dev_stop(eth_dev);
+		virtio_dev_close(eth_dev);
+	}
+	pci_dev = eth_dev->pci_dev;
+
+	eth_dev->dev_ops = NULL;
+	eth_dev->tx_pkt_burst = NULL;
+	eth_dev->rx_pkt_burst = NULL;
+
+	/* Allocate memory for storing MAC addresses */
+	rte_free(eth_dev->data->mac_addrs);
+	eth_dev->data->mac_addrs = NULL;
+
+	/* reset interrupt callback  */
+	if (pci_dev->driver->drv_flags & RTE_PCI_DRV_INTR_LSC)
+		rte_intr_callback_unregister(&pci_dev->intr_handle,
+				   virtio_interrupt_handler, eth_dev);
+
+	return 0;
+}
+
+
 static struct eth_driver rte_virtio_pmd = {
 	{
 		.name = "rte_virtio_pmd",
 		.id_table = pci_id_virtio_map,
+		.drv_flags = RTE_PCI_DRV_DETACHABLE,
 	},
 	.eth_dev_init = eth_virtio_dev_init,
+	.eth_dev_uninit = eth_virtio_dev_uninit,
 	.dev_private_size = sizeof(struct virtio_hw),
 };