* [PATCH] net/iavf: set interrupt throttling register
@ 2026-10-05 11:06 Bruce Richardson
2026-10-06 14:51 ` Burakov, Anatoly
0 siblings, 1 reply; 2+ messages in thread
From: Bruce Richardson @ 2026-10-05 11:06 UTC (permalink / raw)
To: dev; +Cc: Bruce Richardson, Vladimir Medvedkin
The interrupt throttling register(ITR) bank 0 value is set to 2, but
to ensure best performance across all systems also set the bank 1 value
to match.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
---
drivers/net/intel/iavf/iavf_ethdev.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/net/intel/iavf/iavf_ethdev.c b/drivers/net/intel/iavf/iavf_ethdev.c
index a8abe0154c..dc3cea0b95 100644
--- a/drivers/net/intel/iavf/iavf_ethdev.c
+++ b/drivers/net/intel/iavf/iavf_ethdev.c
@@ -899,10 +899,7 @@ static int iavf_config_rx_queues_irqs(struct rte_eth_dev *dev,
(0 << IAVF_VFINT_DYN_CTLN1_ITR_INDX_SHIFT) |
IAVF_VFINT_DYN_CTLN1_WB_ON_ITR_MASK |
(2UL << IAVF_VFINT_DYN_CTLN1_INTERVAL_SHIFT));
- /* debug - check for success! the return value
- * should be 2, offset is 0x2800
- */
- /* IAVF_READ_REG(hw, IAVF_VFINT_ITRN1(0, 0)); */
+ IAVF_WRITE_REG(hw, IAVF_VFINT_ITRN1(1, vf->msix_base - 1), 2);
} else {
/* If no WB_ON_ITR offload flags, need to set
* interrupt for descriptor write back.
--
2.53.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] net/iavf: set interrupt throttling register
2026-10-05 11:06 [PATCH] net/iavf: set interrupt throttling register Bruce Richardson
@ 2026-10-06 14:51 ` Burakov, Anatoly
0 siblings, 0 replies; 2+ messages in thread
From: Burakov, Anatoly @ 2026-10-06 14:51 UTC (permalink / raw)
To: Bruce Richardson, dev; +Cc: Vladimir Medvedkin
On 10/5/2026 1:06 PM, Bruce Richardson wrote:
> The interrupt throttling register(ITR) bank 0 value is set to 2, but
> to ensure best performance across all systems also set the bank 1 value
> to match.
>
> Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
> ---
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
--
Thanks,
Anatoly
^ permalink raw reply [flat|nested] 2+ messages in thread
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