iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

net: Add NAPI IRQ support

Browse Source 
Add support to associate the interrupt vector number for a
NAPI instance.

Signed-off-by: Amritha Nambiar <amritha.nambiar@intel.com>
Reviewed-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Link: https://lore.kernel.org/r/170147334728.5260.13221803396905901904.stgit@anambiarhost.jf.intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Amritha Nambiar 2023-12-01 15:29:07 -08:00 committed by Jakub Kicinski
parent 5a5131d66f
commit 26793bfb5d
4 changed files with 13 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/ethernet/intel/ice/ice_lib.c
View File

@ -2978,6 +2978,8 @@ void ice_q_vector_set_napi_queues(struct ice_q_vector *q_vector, bool locked)
ice_queue_set_napi(q_vector->vsi->netdev, tx_ring->q_index,
NETDEV_QUEUE_TYPE_TX, &q_vector->napi,
locked);
/* Also set the interrupt number for the NAPI */
netif_napi_set_irq(&q_vector->napi, q_vector->irq.virq);
}
/**

6
include/linux/netdevice.h
View File

@ -382,6 +382,7 @@ struct napi_struct {
/* control-path-only fields follow */
struct list_head dev_list;
struct hlist_node napi_hash_node;
int irq;
};
enum {
@ -2665,6 +2666,11 @@ void netif_queue_set_napi(struct net_device *dev, unsigned int queue_index,
enum netdev_queue_type type,
struct napi_struct *napi);
static inline void netif_napi_set_irq(struct napi_struct *napi, int irq)
{
napi->irq = irq;
}
/* Default NAPI poll() weight
* Device drivers are strongly advised to not use bigger value
*/

1
net/core/dev.c
View File

@ -6471,6 +6471,7 @@ void netif_napi_add_weight(struct net_device *dev, struct napi_struct *napi,
*/
if (dev->threaded && napi_kthread_create(napi))
dev->threaded = 0;
netif_napi_set_irq(napi, -1);
}
EXPORT_SYMBOL(netif_napi_add_weight);

4
net/core/netdev-genl.c
View File

@ -180,7 +180,11 @@ netdev_nl_napi_fill_one(struct sk_buff *rsp, struct napi_struct *napi,
if (nla_put_u32(rsp, NETDEV_A_NAPI_IFINDEX, napi->dev->ifindex))
goto nla_put_failure;
if (napi->irq >= 0 && nla_put_u32(rsp, NETDEV_A_NAPI_IRQ, napi->irq))
goto nla_put_failure;
genlmsg_end(rsp, hdr);
return 0;
nla_put_failure: