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00c94ca2b9
Add a netlink family for PSP and allow drivers to register support. The "PSP device" is its own object. This allows us to perform more flexible reference counting / lifetime control than if PSP information was part of net_device. In the future we should also be able to "delegate" PSP access to software devices, such as *vlan, veth or netkit more easily. Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Daniel Zahka <daniel.zahka@gmail.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Link: https://patch.msgid.link/20250917000954.859376-3-daniel.zahka@gmail.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
32 lines
674 B
C
32 lines
674 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef __PSP_PSP_H
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#define __PSP_PSP_H
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#include <linux/list.h>
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#include <linux/mutex.h>
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#include <net/netns/generic.h>
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#include <net/psp.h>
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#include <net/sock.h>
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extern struct xarray psp_devs;
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extern struct mutex psp_devs_lock;
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void psp_dev_destroy(struct psp_dev *psd);
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int psp_dev_check_access(struct psp_dev *psd, struct net *net);
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void psp_nl_notify_dev(struct psp_dev *psd, u32 cmd);
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static inline void psp_dev_get(struct psp_dev *psd)
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{
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refcount_inc(&psd->refcnt);
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}
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static inline void psp_dev_put(struct psp_dev *psd)
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{
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if (refcount_dec_and_test(&psd->refcnt))
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psp_dev_destroy(psd);
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}
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#endif /* __PSP_PSP_H */
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