[net-next v1 03/16] queue_api: define queue api

Mina Almasry
2023-12-08T00:53:01Z

This API enables the net stack to reset the queues used for devmem.

Signed-off-by: Mina Almasry <almasrymina@google.com>

---
include/linux/netdevice.h | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 1b935ee341b4..316f7dee86ce 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1432,6 +1432,20 @@ struct netdev_net_notifier {
* struct kernel_hwtstamp_config *kernel_config,
* struct netlink_ext_ack *extack);
* Change the hardware timestamping parameters for NIC device.
+ *
+ * void *(*ndo_queue_mem_alloc)(struct net_device *dev, int idx);
+ * 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.
+ *
+ * void (*ndo_queue_mem_free)(struct net_device *dev, void *);
+ * Free memory from an RX queue.
+ *
+ * int (*ndo_queue_start)(struct net_device *dev, int idx, void *);
+ * Start an RX queue at the specified index.
+ *
+ * int (*ndo_queue_stop)(struct net_device *dev, int idx, void **);
+ * Stop the RX queue at the specified index.
*/
struct net_device_ops {
int (*ndo_init)(struct net_device *dev);
@@ -1673,6 +1687,16 @@ struct net_device_ops {
int (*ndo_hwtstamp_set)(struct net_device *dev,
struct kernel_hwtstamp_config *kernel_config,
struct netlink_ext_ack *extack);
+ 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);
};

/**
--
2.43.0.472.g3155946c3a-goog