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linux/drivers/net/netdevsim/psp.c

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netdevsim: a basic test PSP implementation Provide a PSP implementation for netdevsim. Use psp_dev_encapsulate() and psp_dev_rcv() to do actual encapsulation and decapsulation on skbs, but perform no encryption or decryption. In order to make encryption with a bad key result in a drop on the peer's rx side, we stash our psd's generation number in the first byte of each key before handing to the peer. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Co-developed-by: Daniel Zahka <daniel.zahka@gmail.com> Signed-off-by: Daniel Zahka <daniel.zahka@gmail.com> Link: https://patch.msgid.link/20250927225420.1443468-2-kuba@kernel.org Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-09-27 15:54:13 -07:00
netdevsim: implement psp device stats For now only tx/rx packets/bytes are reported. This is not compliant with the PSP Architecture Specification. Signed-off-by: Daniel Zahka <daniel.zahka@gmail.com> Link: https://patch.msgid.link/20251106002608.1578518-6-daniel.zahka@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-05 16:26:06 -08:00
netdevsim: use u64_stats_t with u64_stats_sync properly On 64bit arches, struct u64_stats_sync is empty and provides no help against load/store tearing. Convert to u64_stats_t to ensure atomic operations. Signed-off-by: David Yang <mmyangfl@gmail.com> Link: https://patch.msgid.link/20260123211101.2929547-1-mmyangfl@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-24 05:10:55 +08:00
netdevsim: implement psp device stats For now only tx/rx packets/bytes are reported. This is not compliant with the PSP Architecture Specification. Signed-off-by: Daniel Zahka <daniel.zahka@gmail.com> Link: https://patch.msgid.link/20251106002608.1578518-6-daniel.zahka@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-05 16:26:06 -08:00
netdevsim: a basic test PSP implementation Provide a PSP implementation for netdevsim. Use psp_dev_encapsulate() and psp_dev_rcv() to do actual encapsulation and decapsulation on skbs, but perform no encryption or decryption. In order to make encryption with a bad key result in a drop on the peer's rx side, we stash our psd's generation number in the first byte of each key before handing to the peer. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Co-developed-by: Daniel Zahka <daniel.zahka@gmail.com> Signed-off-by: Daniel Zahka <daniel.zahka@gmail.com> Link: https://patch.msgid.link/20250927225420.1443468-2-kuba@kernel.org Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-09-27 15:54:13 -07:00
netdevsim: implement psp device stats For now only tx/rx packets/bytes are reported. This is not compliant with the PSP Architecture Specification. Signed-off-by: Daniel Zahka <daniel.zahka@gmail.com> Link: https://patch.msgid.link/20251106002608.1578518-6-daniel.zahka@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-05 16:26:06 -08:00
netdevsim: use u64_stats_t with u64_stats_sync properly On 64bit arches, struct u64_stats_sync is empty and provides no help against load/store tearing. Convert to u64_stats_t to ensure atomic operations. Signed-off-by: David Yang <mmyangfl@gmail.com> Link: https://patch.msgid.link/20260123211101.2929547-1-mmyangfl@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-01-24 05:10:55 +08:00
netdevsim: implement psp device stats For now only tx/rx packets/bytes are reported. This is not compliant with the PSP Architecture Specification. Signed-off-by: Daniel Zahka <daniel.zahka@gmail.com> Link: https://patch.msgid.link/20251106002608.1578518-6-daniel.zahka@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-05 16:26:06 -08:00
netdevsim: a basic test PSP implementation Provide a PSP implementation for netdevsim. Use psp_dev_encapsulate() and psp_dev_rcv() to do actual encapsulation and decapsulation on skbs, but perform no encryption or decryption. In order to make encryption with a bad key result in a drop on the peer's rx side, we stash our psd's generation number in the first byte of each key before handing to the peer. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Co-developed-by: Daniel Zahka <daniel.zahka@gmail.com> Signed-off-by: Daniel Zahka <daniel.zahka@gmail.com> Link: https://patch.msgid.link/20250927225420.1443468-2-kuba@kernel.org Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-09-27 15:54:13 -07:00
netdevsim: implement psp device stats For now only tx/rx packets/bytes are reported. This is not compliant with the PSP Architecture Specification. Signed-off-by: Daniel Zahka <daniel.zahka@gmail.com> Link: https://patch.msgid.link/20251106002608.1578518-6-daniel.zahka@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-05 16:26:06 -08:00
netdevsim: a basic test PSP implementation Provide a PSP implementation for netdevsim. Use psp_dev_encapsulate() and psp_dev_rcv() to do actual encapsulation and decapsulation on skbs, but perform no encryption or decryption. In order to make encryption with a bad key result in a drop on the peer's rx side, we stash our psd's generation number in the first byte of each key before handing to the peer. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Co-developed-by: Daniel Zahka <daniel.zahka@gmail.com> Signed-off-by: Daniel Zahka <daniel.zahka@gmail.com> Link: https://patch.msgid.link/20250927225420.1443468-2-kuba@kernel.org Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-09-27 15:54:13 -07:00