Re: [dpdk-dev] [PATCH v4 19/20] net/sfc: support flow action COUNT in transfer rules
From: David Marchand <hidden>
Date: 2021-07-16 12:12:50
From: David Marchand <hidden>
Date: 2021-07-16 12:12:50
Hello gyus, On Fri, Jul 2, 2021 at 10:41 AM Andrew Rybchenko [off-list ref] wrote:
From: Igor Romanov <redacted> For now, a rule may have only one dedicated counter, shared counters are not supported. HW delivers (or "streams") counter readings using special packets. The driver creates a dedicated Rx queue to receive such packets and requests that HW start "streaming" the readings to it. The counter queue is polled periodically, and the first available service core is used for that. Hence, the user has to specify at least one service core for counters to work. Such a core is shared by all MAE-capable devices managed by sfc driver.
If no service lcore is available, did you consider falling back and using a control thread per mae device? -- David Marchand