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 | c0b709bf438ba9d197d369f55e4a97603fd4a705 (patch) | |
| tree | 81d8d5549d538c5483e6baddd772714b0e27e7b5 /net/core/netdev_rx_queue.c | |
| parent | efcb9a4d32d3d9b924642c086b868bfbb9a07c13 (diff) | |
net: pass queue rx page size from memory provider
Allow memory providers to configure rx queues with a custom receive
page size. It's passed in struct pp_memory_provider_params, which is
copied into the queue, so it's preserved across queue restarts. Then,
it's propagated to the driver in a new queue config parameter.
Drivers should explicitly opt into using it by setting
QCFG_RX_PAGE_SIZE, in which case they should implement ndo_default_qcfg,
validate the size on queue restart and honour the current config in case
of a reset.
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 | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/net/core/netdev_rx_queue.c b/net/core/netdev_rx_queue.c index 86d1c0a925e3..b81cad90ba2f 100644 --- a/net/core/netdev_rx_queue.c +++ b/net/core/netdev_rx_queue.c @@ -30,12 +30,21 @@ int netdev_rx_queue_restart(struct net_device *dev, unsigned int rxq_idx) !qops->ndo_queue_mem_alloc || !qops->ndo_queue_start) return -EOPNOTSUPP; + if (WARN_ON_ONCE(qops->supported_params && !qops->ndo_default_qcfg)) + return -EINVAL; + netdev_assert_locked(dev); memset(&qcfg, 0, sizeof(qcfg)); if (qops->ndo_default_qcfg) qops->ndo_default_qcfg(dev, &qcfg); + if (rxq->mp_params.rx_page_size) { + if (!(qops->supported_params & QCFG_RX_PAGE_SIZE)) + return -EOPNOTSUPP; + qcfg.rx_page_size = rxq->mp_params.rx_page_size; + } + new_mem = kvzalloc(qops->ndo_queue_mem_size, GFP_KERNEL); if (!new_mem) return -ENOMEM; |