diff options
| author | Amritha Nambiar <amritha.nambiar@intel.com> | 2023-12-01 15:28:34 -0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-12-04 18:04:05 -0800 |
| commit | 2a502ff0c4e42a739b5aa550c901bf3852795532 (patch) | |
| tree | 3ceb0f1f5e07653f3035f4ea065b4f5cd8b4d462 /net/core/dev.c | |
| parent | bc877956272f0521fef107838555817112a450dc (diff) | |
| download | linux-2a502ff0c4e42a739b5aa550c901bf3852795532.tar.gz | |
net: Add queue and napi association
Add the napi pointer in netdev queue for tracking the napi
instance for each queue. This achieves the queue<->napi mapping.
Signed-off-by: Amritha Nambiar <amritha.nambiar@intel.com>
Reviewed-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Link: https://lore.kernel.org/r/170147331483.5260.15723438819994285695.stgit@anambiarhost.jf.intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/core/dev.c')
| -rw-r--r-- | net/core/dev.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 3950ced396b50..0a2eecbeef388 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -6400,6 +6400,43 @@ int dev_set_threaded(struct net_device *dev, bool threaded) } EXPORT_SYMBOL(dev_set_threaded); +/** + * netif_queue_set_napi - Associate queue with the napi + * @dev: device to which NAPI and queue belong + * @queue_index: Index of queue + * @type: queue type as RX or TX + * @napi: NAPI context, pass NULL to clear previously set NAPI + * + * Set queue with its corresponding napi context. This should be done after + * registering the NAPI handler for the queue-vector and the queues have been + * mapped to the corresponding interrupt vector. + */ +void netif_queue_set_napi(struct net_device *dev, unsigned int queue_index, + enum netdev_queue_type type, struct napi_struct *napi) +{ + struct netdev_rx_queue *rxq; + struct netdev_queue *txq; + + if (WARN_ON_ONCE(napi && !napi->dev)) + return; + if (dev->reg_state >= NETREG_REGISTERED) + ASSERT_RTNL(); + + switch (type) { + case NETDEV_QUEUE_TYPE_RX: + rxq = __netif_get_rx_queue(dev, queue_index); + rxq->napi = napi; + return; + case NETDEV_QUEUE_TYPE_TX: + txq = netdev_get_tx_queue(dev, queue_index); + txq->napi = napi; + return; + default: + return; + } +} +EXPORT_SYMBOL(netif_queue_set_napi); + void netif_napi_add_weight(struct net_device *dev, struct napi_struct *napi, int (*poll)(struct napi_struct *, int), int weight) { |