From: Mina Almasry <almasrymina@google.com>
To: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-doc@vger.kernel.org, linux-alpha@vger.kernel.org,
linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org,
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linux-kselftest@vger.kernel.org, linux-media@vger.kernel.org,
dri-devel@lists.freedesktop.org
Cc: "Mina Almasry" <almasrymina@google.com>,
"David S. Miller" <davem@davemloft.net>,
"Eric Dumazet" <edumazet@google.com>,
"Jakub Kicinski" <kuba@kernel.org>,
"Paolo Abeni" <pabeni@redhat.com>,
"Jonathan Corbet" <corbet@lwn.net>,
"Richard Henderson" <richard.henderson@linaro.org>,
"Ivan Kokshaysky" <ink@jurassic.park.msu.ru>,
"Matt Turner" <mattst88@gmail.com>,
"Thomas Bogendoerfer" <tsbogend@alpha.franken.de>,
"James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>,
"Helge Deller" <deller@gmx.de>,
"Andreas Larsson" <andreas@gaisler.com>,
"Jesper Dangaard Brouer" <hawk@kernel.org>,
"Ilias Apalodimas" <ilias.apalodimas@linaro.org>,
"Steven Rostedt" <rostedt@goodmis.org>,
"Masami Hiramatsu" <mhiramat@kernel.org>,
"Mathieu Desnoyers" <mathieu.desnoyers@efficios.com>,
"Arnd Bergmann" <arnd@arndb.de>,
"Alexei Starovoitov" <ast@kernel.org>,
"Daniel Borkmann" <daniel@iogearbox.net>,
"Andrii Nakryiko" <andrii@kernel.org>,
"Martin KaFai Lau" <martin.lau@linux.dev>,
"Eduard Zingerman" <eddyz87@gmail.com>,
"Song Liu" <song@kernel.org>,
"Yonghong Song" <yonghong.song@linux.dev>,
"John Fastabend" <john.fastabend@gmail.com>,
"KP Singh" <kpsingh@kernel.org>,
"Stanislav Fomichev" <sdf@google.com>,
"Hao Luo" <haoluo@google.com>, "Jiri Olsa" <jolsa@kernel.org>,
"Steffen Klassert" <steffen.klassert@secunet.com>,
"Herbert Xu" <herbert@gondor.apana.org.au>,
"David Ahern" <dsahern@kernel.org>,
"Willem de Bruijn" <willemdebruijn.kernel@gmail.com>,
"Shuah Khan" <shuah@kernel.org>,
"Sumit Semwal" <sumit.semwal@linaro.org>,
"Christian König" <christian.koenig@amd.com>,
"Pavel Begunkov" <asml.silence@gmail.com>,
"David Wei" <dw@davidwei.uk>, "Jason Gunthorpe" <jgg@ziepe.ca>,
"Yunsheng Lin" <linyunsheng@huawei.com>,
"Shailend Chand" <shailend@google.com>,
"Harshitha Ramamurthy" <hramamurthy@google.com>,
"Shakeel Butt" <shakeel.butt@linux.dev>,
"Jeroen de Borst" <jeroendb@google.com>,
"Praveen Kaligineedi" <pkaligineedi@google.com>
Subject: [RFC PATCH net-next v7 01/14] queue_api: define queue api
Date: Tue, 26 Mar 2024 15:50:32 -0700 [thread overview]
Message-ID: <20240326225048.785801-2-almasrymina@google.com> (raw)
In-Reply-To: <20240326225048.785801-1-almasrymina@google.com>
This API enables the net stack to reset the queues used for devmem TCP.
Signed-off-by: Mina Almasry <almasrymina@google.com>
---
include/linux/netdevice.h | 3 +++
include/net/netdev_queues.h | 27 +++++++++++++++++++++++++++
2 files changed, 30 insertions(+)
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index e41d30ebaca6..3d3af8f7f9c9 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1956,6 +1956,7 @@ enum netdev_reg_state {
* @sysfs_rx_queue_group: Space for optional per-rx queue attributes
* @rtnl_link_ops: Rtnl_link_ops
* @stat_ops: Optional ops for queue-aware statistics
+ * @queue_mgmt_ops: Optional ops for queue management
*
* @gso_max_size: Maximum size of generic segmentation offload
* @tso_max_size: Device (as in HW) limit on the max TSO request size
@@ -2338,6 +2339,8 @@ struct net_device {
const struct netdev_stat_ops *stat_ops;
+ const struct netdev_queue_mgmt_ops *queue_mgmt_ops;
+
/* for setting kernel sock attribute on TCP connection setup */
#define GSO_MAX_SEGS 65535u
#define GSO_LEGACY_MAX_SIZE 65536u
diff --git a/include/net/netdev_queues.h b/include/net/netdev_queues.h
index 1ec408585373..337df0860ae6 100644
--- a/include/net/netdev_queues.h
+++ b/include/net/netdev_queues.h
@@ -60,6 +60,33 @@ struct netdev_stat_ops {
struct netdev_queue_stats_tx *tx);
};
+/**
+ * struct netdev_queue_mgmt_ops - netdev ops for queue management
+ *
+ * @ndo_queue_mem_alloc: Allocate memory for an RX queue. The memory returned
+ * in the form of a void* can be passed to
+ * ndo_queue_mem_free() for freeing or to ndo_queue_start
+ * to create an RX queue with this memory.
+ *
+ * @ndo_queue_mem_free: Free memory from an RX queue.
+ *
+ * @ndo_queue_start: Start an RX queue at the specified index.
+ *
+ * @ndo_queue_stop: Stop the RX queue at the specified index.
+ */
+struct netdev_queue_mgmt_ops {
+ void * (*ndo_queue_mem_alloc)(struct net_device *dev,
+ int idx);
+ void (*ndo_queue_mem_free)(struct net_device *dev,
+ void *queue_mem);
+ int (*ndo_queue_start)(struct net_device *dev,
+ int idx,
+ void *queue_mem);
+ int (*ndo_queue_stop)(struct net_device *dev,
+ int idx,
+ void **out_queue_mem);
+};
+
/**
* DOC: Lockless queue stopping / waking helpers.
*
--
2.44.0.396.g6e790dbe36-goog
next prev parent reply other threads:[~2024-03-26 22:50 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-26 22:50 [RFC PATCH net-next v7 00/14] Device Memory TCP Mina Almasry
2024-03-26 22:50 ` Mina Almasry [this message]
2024-03-26 22:50 ` [RFC PATCH net-next v7 02/14] net: page_pool: create hooks for custom page providers Mina Almasry
2024-03-26 22:50 ` [RFC PATCH net-next v7 03/14] net: netdev netlink api to bind dma-buf to a net device Mina Almasry
2024-03-26 22:50 ` [RFC PATCH net-next v7 04/14] netdev: support binding dma-buf to netdevice Mina Almasry
2024-03-28 18:28 ` Simon Horman
2024-03-28 18:55 ` Mina Almasry
2024-03-28 20:38 ` Simon Horman
2024-03-26 22:50 ` [RFC PATCH net-next v7 05/14] netdev: netdevice devmem allocator Mina Almasry
2024-03-26 22:50 ` [RFC PATCH net-next v7 06/14] page_pool: convert to use netmem Mina Almasry
2024-03-27 8:25 ` Mina Almasry
2024-03-26 22:50 ` [RFC PATCH net-next v7 07/14] page_pool: devmem support Mina Almasry
2024-03-27 8:26 ` Mina Almasry
2024-03-26 22:50 ` [RFC PATCH net-next v7 08/14] memory-provider: dmabuf devmem memory provider Mina Almasry
2024-03-26 22:50 ` [RFC PATCH net-next v7 09/14] net: support non paged skb frags Mina Almasry
2024-03-26 22:50 ` [RFC PATCH net-next v7 10/14] net: add support for skbs with unreadable frags Mina Almasry
2024-03-26 22:50 ` [RFC PATCH net-next v7 11/14] tcp: RX path for devmem TCP Mina Almasry
2024-03-26 22:50 ` [RFC PATCH net-next v7 12/14] net: add SO_DEVMEM_DONTNEED setsockopt to release RX frags Mina Almasry
2024-03-26 22:50 ` [RFC PATCH net-next v7 13/14] net: add devmem TCP documentation Mina Almasry
2024-03-27 0:38 ` Randy Dunlap
2024-03-26 22:50 ` [RFC PATCH net-next v7 14/14] selftests: add ncdevmem, netcat for devmem TCP Mina Almasry
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