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8766d61a1d
This reverts commit77b9c4a438, reversing changes made to4515ec4ad5:931420a2fc("selftests/net: Add netkit container tests")ab771c938d("selftests/net: Make NetDrvContEnv support queue leasing")6be87fbb27("selftests/net: Add env for container based tests")61d99ce3df("selftests/net: Add bpf skb forwarding program")920da36341("netkit: Add xsk support for af_xdp applications")eef51113f8("netkit: Add netkit notifier to check for unregistering devices")b5ef109d22("netkit: Implement rtnl_link_ops->alloc and ndo_queue_create")b5c3fa4a0b("netkit: Add single device mode for netkit")0073d2fd67("xsk: Proxy pool management for leased queues")1ecea95dd3("xsk: Extend xsk_rcv_check validation")804bf334d0("net: Proxy netdev_queue_get_dma_dev for leased queues")0caa9a8dde("net: Proxy net_mp_{open,close}_rxq for leased queues")ff8889ff91("net, ethtool: Disallow leased real rxqs to be resized")9e2103f361("net: Add lease info to queue-get response")31127dedde("net: Implement netdev_nl_queue_create_doit")a5546e18f7("net: Add queue-create operation") The series will conflict with io_uring work, and the code needs more polish. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
28 lines
761 B
C
28 lines
761 B
C
// SPDX-License-Identifier: GPL-2.0-or-later
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#include <net/netdev_queues.h>
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/**
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* netdev_queue_get_dma_dev() - get dma device for zero-copy operations
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* @dev: net_device
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* @idx: queue index
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*
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* Get dma device for zero-copy operations to be used for this queue.
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* When such device is not available or valid, the function will return NULL.
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*
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* Return: Device or NULL on error
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*/
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struct device *netdev_queue_get_dma_dev(struct net_device *dev, int idx)
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{
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const struct netdev_queue_mgmt_ops *queue_ops = dev->queue_mgmt_ops;
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struct device *dma_dev;
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if (queue_ops && queue_ops->ndo_queue_get_dma_dev)
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dma_dev = queue_ops->ndo_queue_get_dma_dev(dev, idx);
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else
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dma_dev = dev->dev.parent;
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return dma_dev && dma_dev->dma_mask ? dma_dev : NULL;
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}
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