From: Jiayuan Chen <jiayuan.chen@linux.dev>
To: netdev@vger.kernel.org
Cc: Jiayuan Chen <jiayuan.chen@linux.dev>,
Andrew Lunn <andrew+netdev@lunn.ch>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Shuah Khan <shuah@kernel.org>,
linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org
Subject: [RFC PATCH net-next 0/2] netdevsim: add TLS device offload emulation and test
Date: Tue, 28 Jul 2026 20:56:39 +0800 [thread overview]
Message-ID: <20260728125658.390500-1-jiayuan.chen@linux.dev> (raw)
The kTLS device offload path in net/tls/tls_device.c has no test
coverage upstream -- selftests/net/tls.c is software only, and the
offload code needs a driver that implements it.
So teach netdevsim to fake it. Patch 1 implements tlsdev_ops and
advertises the TLS features, patch 2 adds a selftest.
No crypto is done: TX puts the plaintext record on the wire, RX just
sets skb->decrypted. That only works netdevsim to netdevsim, but it
covers record assembly and the offload lifecycle. Real ciphertext, and
more on top of it, can come later.
Jiayuan Chen (2):
netdevsim: add TLS device offload emulation
selftests: netdevsim: add a kTLS device offload test
drivers/net/Kconfig | 1 +
drivers/net/netdevsim/Makefile | 4 +
drivers/net/netdevsim/netdev.c | 5 +
drivers/net/netdevsim/netdevsim.h | 35 ++
drivers/net/netdevsim/tls.c | 418 +++++++++++++++
.../drivers/net/netdevsim/.gitignore | 2 +
.../selftests/drivers/net/netdevsim/Makefile | 7 +
.../selftests/drivers/net/netdevsim/tls.sh | 271 ++++++++++
.../drivers/net/netdevsim/tls_offload.c | 498 ++++++++++++++++++
9 files changed, 1241 insertions(+)
create mode 100644 drivers/net/netdevsim/tls.c
create mode 100644 tools/testing/selftests/drivers/net/netdevsim/.gitignore
create mode 100755 tools/testing/selftests/drivers/net/netdevsim/tls.sh
create mode 100644 tools/testing/selftests/drivers/net/netdevsim/tls_offload.c
--
2.43.0
next reply other threads:[~2026-07-28 12:57 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-28 12:56 Jiayuan Chen [this message]
2026-07-28 12:56 ` [RFC PATCH net-next 1/2] netdevsim: add TLS device offload emulation Jiayuan Chen
2026-07-28 12:56 ` [RFC PATCH net-next 2/2] selftests: netdevsim: add a kTLS device offload test Jiayuan Chen
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