diff options
| author | Pavel Begunkov <asml.silence@gmail.com> | 2026-01-06 13:25:40 +0000 |
|---|---|---|
| committer | Pavel Begunkov <asml.silence@gmail.com> | 2026-01-14 02:13:36 +0000 |
| commit | efcb9a4d32d3d9b924642c086b868bfbb9a07c13 (patch) | |
| tree | f8c9ea625b67e453ed617c86c57d41b003cb5e93 /net/core/netdev_rx_queue.c | |
| parent | 92d76cf96dcbc3c58daa84dbbf71a3ca8d9de53d (diff) | |
net: add bare bone queue configs
We'll need to pass extra parameters when allocating a queue for memory
providers. Define a new structure for queue configurations, and pass it
to qapi callbacks. It's empty for now, actual parameters will be added
in following patches.
Configurations should persist across resets, and for that they're
default-initialised on device registration and stored in struct
netdev_rx_queue. We also add a new qapi callback for defaulting a given
config. It must be implemented if a driver wants to use queue configs
and is optional otherwise.
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Diffstat (limited to 'net/core/netdev_rx_queue.c')
| -rw-r--r-- | net/core/netdev_rx_queue.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/net/core/netdev_rx_queue.c b/net/core/netdev_rx_queue.c index a0083f176a9c..86d1c0a925e3 100644 --- a/net/core/netdev_rx_queue.c +++ b/net/core/netdev_rx_queue.c @@ -22,6 +22,7 @@ int netdev_rx_queue_restart(struct net_device *dev, unsigned int rxq_idx) { struct netdev_rx_queue *rxq = __netif_get_rx_queue(dev, rxq_idx); const struct netdev_queue_mgmt_ops *qops = dev->queue_mgmt_ops; + struct netdev_queue_config qcfg; void *new_mem, *old_mem; int err; @@ -31,6 +32,10 @@ int netdev_rx_queue_restart(struct net_device *dev, unsigned int rxq_idx) netdev_assert_locked(dev); + memset(&qcfg, 0, sizeof(qcfg)); + if (qops->ndo_default_qcfg) + qops->ndo_default_qcfg(dev, &qcfg); + new_mem = kvzalloc(qops->ndo_queue_mem_size, GFP_KERNEL); if (!new_mem) return -ENOMEM; @@ -41,7 +46,7 @@ int netdev_rx_queue_restart(struct net_device *dev, unsigned int rxq_idx) goto err_free_new_mem; } - err = qops->ndo_queue_mem_alloc(dev, new_mem, rxq_idx); + err = qops->ndo_queue_mem_alloc(dev, &qcfg, new_mem, rxq_idx); if (err) goto err_free_old_mem; @@ -54,7 +59,7 @@ int netdev_rx_queue_restart(struct net_device *dev, unsigned int rxq_idx) if (err) goto err_free_new_queue_mem; - err = qops->ndo_queue_start(dev, new_mem, rxq_idx); + err = qops->ndo_queue_start(dev, &qcfg, new_mem, rxq_idx); if (err) goto err_start_queue; } else { @@ -66,6 +71,7 @@ int netdev_rx_queue_restart(struct net_device *dev, unsigned int rxq_idx) kvfree(old_mem); kvfree(new_mem); + rxq->qcfg = qcfg; return 0; err_start_queue: @@ -76,7 +82,7 @@ err_start_queue: * WARN if we fail to recover the old rx queue, and at least free * old_mem so we don't also leak that. */ - if (qops->ndo_queue_start(dev, old_mem, rxq_idx)) { + if (qops->ndo_queue_start(dev, &rxq->qcfg, old_mem, rxq_idx)) { WARN(1, "Failed to restart old queue in error path. RX queue %d may be unhealthy.", rxq_idx); |