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| author | David S. Miller <davem@davemloft.net> | 2024-05-05 16:35:48 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2024-05-05 16:35:48 +0300 |
| commit | cdc74c9d06e72addde01092d09f13bb86d3ed7d0 (patch) | |
| tree | e1a650c406567d5292c2b252d5bac40d7e855fb9 /include | |
| parent | 173e7622ccb3f46834bd4176ed363f435e142942 (diff) | |
| parent | ee24284e2a1075966f0f2c5499c59b7d2b9bc2de (diff) | |
| download | linux-cdc74c9d06e72addde01092d09f13bb86d3ed7d0.tar.xz | |
Merge branch 'gve-queue-api'
Shailend Chand says:
====================
gve: Implement queue api
Following the discussion on
https://patchwork.kernel.org/project/linux-media/patch/20240305020153.2787423-2-almasrymina@google.com/,
the queue api defined by Mina is implemented for gve.
The first patch is just Mina's introduction of the api. The rest of the
patches make surgical changes in gve to enable it to work correctly with
only a subset of queues present (thus far it had assumed that either all
queues are up or all are down). The final patch has the api
implementation.
Changes since v1: clang warning fixes, kdoc warning fix, and addressed
review comments.
====================
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/netdevice.h | 3 | ||||
| -rw-r--r-- | include/net/netdev_queues.h | 31 |
2 files changed, 34 insertions, 0 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 2814a15eed73..cf261fb89d73 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1957,6 +1957,7 @@ 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 @@ -2340,6 +2341,8 @@ 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 c7ac4539eafc..e7b84f018cee 100644 --- a/include/net/netdev_queues.h +++ b/include/net/netdev_queues.h @@ -88,6 +88,37 @@ struct netdev_stat_ops { }; /** + * struct netdev_queue_mgmt_ops - netdev ops for queue management + * + * @ndo_queue_mem_size: Size of the struct that describes a queue's memory. + * + * @ndo_queue_mem_alloc: Allocate memory for an RX queue at the specified index. + * The new memory is written at the specified address. + * + * @ndo_queue_mem_free: Free memory from an RX queue. + * + * @ndo_queue_start: Start an RX queue with the specified memory and at the + * specified index. + * + * @ndo_queue_stop: Stop the RX queue at the specified index. The stopped + * queue's memory is written at the specified address. + */ +struct netdev_queue_mgmt_ops { + size_t ndo_queue_mem_size; + int (*ndo_queue_mem_alloc)(struct net_device *dev, + void *per_queue_mem, + int idx); + void (*ndo_queue_mem_free)(struct net_device *dev, + void *per_queue_mem); + int (*ndo_queue_start)(struct net_device *dev, + void *per_queue_mem, + int idx); + int (*ndo_queue_stop)(struct net_device *dev, + void *per_queue_mem, + int idx); +}; + +/** * DOC: Lockless queue stopping / waking helpers. * * The netif_txq_maybe_stop() and __netif_txq_completed_wake() |