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net/virtio: unmap PCI device in secondary process

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In multi-process, the secondary process will remap PCI during
initialization, but the mapping is not removed in the uninit path,
the device is not closed, and the device busy error will be reported
when the device is hotplugged.

This patch unmaps PCI device at secondary process uninitialization
based on virtio_rempa_pci.

Fixes: 36a7a2e7a5 ("net/virtio: move PCI device init in dedicated file")
Cc: stable@dpdk.org

Signed-off-by: Yuan Wang <yuanx.wang@intel.com>
Tested-by: Wei Ling <weix.ling@intel.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
This commit is contained in:
Yuan Wang 2022-06-06 23:55:43 +08:00 committed by Maxime Coquelin
parent 4414bb6701
commit 5729407fa4
1 changed files with 11 additions and 1 deletions
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12
drivers/net/virtio/virtio_pci_ethdev.c
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@ -122,10 +122,20 @@ static int
eth_virtio_pci_uninit(struct rte_eth_dev *eth_dev)
{
int ret;
struct virtio_pci_dev *dev;
struct virtio_hw *hw;
PMD_INIT_FUNC_TRACE();
if (rte_eal_process_type() == RTE_PROC_SECONDARY)
if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
dev = eth_dev->data->dev_private;
hw = &dev->hw;
if (dev->modern)
rte_pci_unmap_device(RTE_ETH_DEV_TO_PCI(eth_dev));
else
vtpci_legacy_ioport_unmap(hw);
return 0;
}
ret = virtio_dev_stop(eth_dev);
virtio_dev_close(eth_dev);