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net/ring: support power monitor

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Currently ring pmd does not support ``rte_power_monitor`` api.
This patch adds support by adding monitor callback that is called
whenever we enter sleep state and need to check if it is time to wake
up.

Signed-off-by: Herakliusz Lipiec <herakliusz.lipiec@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
This commit is contained in:
Herakliusz Lipiec 2022-09-02 18:25:21 +01:00 committed by Andrew Rybchenko
parent 04cf171cb3
commit e480903311
1 changed files with 24 additions and 0 deletions
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24
drivers/net/ring/rte_eth_ring.c
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@ -286,6 +286,29 @@ eth_dev_close(struct rte_eth_dev *dev)
return ret;
}
static int ring_monitor_callback(const uint64_t value,
const uint64_t arg[RTE_POWER_MONITOR_OPAQUE_SZ])
{
/* Check if the head pointer has changed */
return value != arg[0];
}
static int
eth_get_monitor_addr(void *rx_queue, struct rte_power_monitor_cond *pmc)
{
struct rte_ring *rng = ((struct ring_queue *)rx_queue)->rng;
/*
* Monitor ring head since if head moves
* there are packets to transmit
*/
pmc->addr = &rng->prod.head;
pmc->size = sizeof(rng->prod.head);
pmc->opaque[0] = rng->prod.head;
pmc->fn = ring_monitor_callback;
return 0;
}
static const struct eth_dev_ops ops = {
.dev_close = eth_dev_close,
.dev_start = eth_dev_start,
@ -305,6 +328,7 @@ static const struct eth_dev_ops ops = {
.promiscuous_disable = eth_promiscuous_disable,
.allmulticast_enable = eth_allmulticast_enable,
.allmulticast_disable = eth_allmulticast_disable,
.get_monitor_addr = eth_get_monitor_addr,
};
static int