ixgbe：Mechanism of RSS

[hfxsp]

Hi masters,

	We use the Intel Corporation 82599ES NIC in our production environment. And it has 63 rx queues, every rx queue interrupt is processed by a single cpu.
	The RSS configuration can be seen as follow:

	RX flow hash indirection table for eno5 with 63 RX ring(s):
	0:      0     1     2     3     4     5     6     7
	8:      8     9    10    11    12    13    14    15
	16:      0     1     2     3     4     5     6     7
	24:      8     9    10    11    12    13    14    15
	32:      0     1     2     3     4     5     6     7
	40:      8     9    10    11    12    13    14    15
	48:      0     1     2     3     4     5     6     7
	56:      8     9    10    11    12    13    14    15
	64:      0     1     2     3     4     5     6     7
	72:      8     9    10    11    12    13    14    15
	80:      0     1     2     3     4     5     6     7
	88:      8     9    10    11    12    13    14    15
	96:      0     1     2     3     4     5     6     7
	104:      8     9    10    11    12    13    14    15
	112:      0     1     2     3     4     5     6     7
	120:      8     9    10    11    12    13    14    15

	The maximum number of RSS queues is 16. So I have some questions about this. Will other cpus except 0~15 receive the rx interrupts? 

	In our production environment, cpu 16~62 also receive the rx interrupts. Was our RSS misconfigured?

[MACM]

Hi hfxsp,

Greetings of day.

Hope you are doing great.

This is a follow up on the issue that you reported to us.

Could you please confirm if you are still facing the issue.

So that we can go ahead and proceed further accordingly.

Best regards,

Mohammed Ali CM

Intel Customer Support

[hfxsp]

Hi MACM,

Tony has answered my questions, thanks.

[Simon-Intel]

Hi Hfxsp,

Thank you for the update. Kindly confirm if we can proceed to close the case associated to this forum.

Best Regards,

Simon

Intel Customer Support Technician

[hfxsp]

Hi Simon,

You can close this case now, thanks.

[Ragulan_Intel]

Hello hfxsp,

Greetings!

Thank you for the confirmation. With this we are notifying you that your request will be archived as there are no pending actions from Intel Customer Support.

In the coming days, you may be invited to participate in a survey. Your feedback is highly valued, and we are eager to hear about your experience with our support.

Thank You & Best Regards,

Ragulan_Intel