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igb: Add support for persistent NAPI config

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Use netif_napi_add_config() to assign persistent per-NAPI config.

This is useful for preserving NAPI settings when changing queue counts or
for user space programs using SO_INCOMING_NAPI_ID.

Reviewed-by: Joe Damato <jdamato@fastly.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Tested-by: Rinitha S <sx.rinitha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Kurt Kanzenbach 2025-03-19 11:26:41 +01:00 committed by Tony Nguyen
parent b75a1dea50
commit fc0fb1f116
1 changed files with 2 additions and 1 deletions
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3
drivers/net/ethernet/intel/igb/igb_main.c
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@ -1197,7 +1197,8 @@ static int igb_alloc_q_vector(struct igb_adapter *adapter,
return -ENOMEM;
/* initialize NAPI */
netif_napi_add(adapter->netdev, &q_vector->napi, igb_poll);
netif_napi_add_config(adapter->netdev, &q_vector->napi, igb_poll,
v_idx);
/* tie q_vector and adapter together */
adapter->q_vector[v_idx] = q_vector;