From: Aurelien Aptel <aaptel@nvidia.com>
To: netdev@vger.kernel.org, davem@davemloft.net, kuba@kernel.org,
edumazet@google.com, pabeni@redhat.com, saeedm@nvidia.com,
tariqt@nvidia.com, leon@kernel.org,
linux-nvme@lists.infradead.org, sagi@grimberg.me, hch@lst.de,
kbusch@kernel.org, axboe@fb.com, chaitanyak@nvidia.com
Cc: smalin@nvidia.com, aaptel@nvidia.com, ogerlitz@nvidia.com,
yorayz@nvidia.com, borisp@nvidia.com, aurelien.aptel@gmail.com,
malin1024@gmail.com
Subject: [PATCH v7 03/23] net/tls: export get_netdev_for_sock
Date: Tue, 25 Oct 2022 16:59:38 +0300 [thread overview]
Message-ID: <20221025135958.6242-4-aaptel@nvidia.com> (raw)
In-Reply-To: <20221025135958.6242-1-aaptel@nvidia.com>
From: Ben Ben-Ishay <benishay@nvidia.com>
get_netdev_for_sock is a utility that is used to obtain
the net_device structure from a connected socket.
Later patches will use this for nvme-tcp DDP and DDP DDGST offloads.
Signed-off-by: Ben Ben-Ishay <benishay@nvidia.com>
Signed-off-by: Shai Malin <smalin@nvidia.com>
Signed-off-by: Aurelien Aptel <aaptel@nvidia.com>
---
include/net/sock.h | 23 +++++++++++++++++++++++
net/tls/tls_device.c | 16 ----------------
2 files changed, 23 insertions(+), 16 deletions(-)
diff --git a/include/net/sock.h b/include/net/sock.h
index 928bb601fd8f..7928680f4bbd 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -2962,6 +2962,29 @@ int sock_get_timeout(long timeo, void *optval, bool old_timeval);
int sock_copy_user_timeval(struct __kernel_sock_timeval *tv,
sockptr_t optval, int optlen, bool old_timeval);
+/**
+ * get_netdev_for_sock() - get net_device from a connected socket.
+ * @sk: Connected socket.
+ *
+ * get_netdev_for_sock() is a utility that is used to obtain the net_device
+ * structure from a connected socket. This function assumes that the socket
+ * is already connected. This function is used by TLS and ULP DDP offloads.
+ */
+static inline struct net_device *get_netdev_for_sock(struct sock *sk)
+{
+ struct dst_entry *dst = sk_dst_get(sk);
+ struct net_device *netdev = NULL;
+
+ if (likely(dst)) {
+ netdev = netdev_sk_get_lowest_dev(dst->dev, sk);
+ dev_hold(netdev);
+ }
+
+ dst_release(dst);
+
+ return netdev;
+}
+
static inline bool sk_is_readable(struct sock *sk)
{
if (sk->sk_prot->sock_is_readable)
diff --git a/net/tls/tls_device.c b/net/tls/tls_device.c
index a03d66046ca3..1eb92dab4f34 100644
--- a/net/tls/tls_device.c
+++ b/net/tls/tls_device.c
@@ -120,22 +120,6 @@ static void tls_device_queue_ctx_destruction(struct tls_context *ctx)
tls_device_free_ctx(ctx);
}
-/* We assume that the socket is already connected */
-static struct net_device *get_netdev_for_sock(struct sock *sk)
-{
- struct dst_entry *dst = sk_dst_get(sk);
- struct net_device *netdev = NULL;
-
- if (likely(dst)) {
- netdev = netdev_sk_get_lowest_dev(dst->dev, sk);
- dev_hold(netdev);
- }
-
- dst_release(dst);
-
- return netdev;
-}
-
static void destroy_record(struct tls_record_info *record)
{
int i;
--
2.31.1
next prev parent reply other threads:[~2022-10-25 14:00 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-25 13:59 [PATCH v7 00/23] nvme-tcp receive offloads Aurelien Aptel
2022-10-25 13:59 ` [PATCH v7 01/23] net: Introduce direct data placement tcp offload Aurelien Aptel
2022-10-25 22:39 ` Jakub Kicinski
2022-10-26 15:01 ` Shai Malin
2022-10-26 16:24 ` Jakub Kicinski
2022-10-28 10:32 ` Shai Malin
2022-10-28 15:40 ` Jakub Kicinski
2022-10-31 18:13 ` Shai Malin
2022-10-31 23:47 ` Jakub Kicinski
2022-11-03 17:23 ` Shai Malin
2022-11-03 17:29 ` Aurelien Aptel
2022-11-04 1:57 ` Jakub Kicinski
2022-11-04 13:44 ` Aurelien Aptel
2022-11-04 16:15 ` Jakub Kicinski
2022-10-25 13:59 ` [PATCH v7 02/23] iov_iter: DDP copy to iter/pages Aurelien Aptel
2022-10-25 16:01 ` Christoph Hellwig
2022-10-26 16:05 ` Aurelien Aptel
2022-10-25 22:40 ` Jakub Kicinski
2022-10-25 13:59 ` Aurelien Aptel [this message]
2022-10-25 16:12 ` [PATCH v7 03/23] net/tls: export get_netdev_for_sock Christoph Hellwig
2022-10-26 15:55 ` Aurelien Aptel
2022-10-30 16:06 ` Christoph Hellwig
2022-10-25 13:59 ` [PATCH v7 04/23] Revert "nvme-tcp: remove the unused queue_size member in nvme_tcp_queue" Aurelien Aptel
2022-10-25 16:14 ` Christoph Hellwig
2022-10-26 11:02 ` Sagi Grimberg
2022-10-26 11:52 ` Shai Malin
2022-10-25 13:59 ` [PATCH v7 05/23] nvme-tcp: Add DDP offload control path Aurelien Aptel
2022-10-25 13:59 ` [PATCH v7 06/23] nvme-tcp: Add DDP data-path Aurelien Aptel
2022-10-25 13:59 ` [PATCH v7 07/23] nvme-tcp: RX DDGST offload Aurelien Aptel
2022-10-25 13:59 ` [PATCH v7 08/23] nvme-tcp: Deal with netdevice DOWN events Aurelien Aptel
2022-10-25 13:59 ` [PATCH v7 09/23] nvme-tcp: Add modparam to control the ULP offload enablement Aurelien Aptel
2022-10-25 13:59 ` [PATCH v7 10/23] Documentation: add ULP DDP offload documentation Aurelien Aptel
2022-10-26 22:23 ` kernel test robot
2022-10-25 13:59 ` [PATCH v7 11/23] net/mlx5e: Rename from tls to transport static params Aurelien Aptel
2022-10-25 13:59 ` [PATCH v7 12/23] net/mlx5e: Refactor ico sq polling to get budget Aurelien Aptel
2022-10-25 13:59 ` [PATCH v7 13/23] net/mlx5e: Have mdev pointer directly on the icosq structure Aurelien Aptel
2022-10-25 13:59 ` [PATCH v7 14/23] net/mlx5e: Refactor doorbell function to allow avoiding a completion Aurelien Aptel
2022-10-25 13:59 ` [PATCH v7 15/23] net/mlx5: Add NVMEoTCP caps, HW bits, 128B CQE and enumerations Aurelien Aptel
2022-10-25 13:59 ` [PATCH v7 16/23] net/mlx5e: NVMEoTCP, offload initialization Aurelien Aptel
2022-10-25 13:59 ` [PATCH v7 17/23] net/mlx5e: TCP flow steering for nvme-tcp acceleration Aurelien Aptel
2022-10-25 13:59 ` [PATCH v7 18/23] net/mlx5e: NVMEoTCP, use KLM UMRs for buffer registration Aurelien Aptel
2022-10-25 13:59 ` [PATCH v7 19/23] net/mlx5e: NVMEoTCP, queue init/teardown Aurelien Aptel
2022-10-25 13:59 ` [PATCH v7 20/23] net/mlx5e: NVMEoTCP, ddp setup and resync Aurelien Aptel
2022-10-25 13:59 ` [PATCH v7 21/23] net/mlx5e: NVMEoTCP, async ddp invalidation Aurelien Aptel
2022-10-25 13:59 ` [PATCH v7 22/23] net/mlx5e: NVMEoTCP, data-path for DDP+DDGST offload Aurelien Aptel
2022-10-25 13:59 ` [PATCH v7 23/23] net/mlx5e: NVMEoTCP, statistics Aurelien Aptel
2022-10-25 16:00 ` [PATCH v7 00/23] nvme-tcp receive offloads Christoph Hellwig
2022-10-26 8:28 ` Or Gerlitz
2022-10-26 11:52 ` Aurelien Aptel
2022-10-27 10:35 ` Sagi Grimberg
2022-10-27 10:45 ` Shai Malin
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