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net/i40e: implement power management API

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Implement support for the power management API by implementing a
`get_monitor_addr` function that will return an address of an RX ring's
status bit.

Signed-off-by: Liang Ma <liang.j.ma@intel.com>
Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Acked-by: Jeff Guo <jia.guo@intel.com>
This commit is contained in:
Liang Ma 2021-01-14 14:46:11 +00:00 committed by Thomas Monjalon
parent 3982b7967b
commit a683abf90a
3 changed files with 27 additions and 0 deletions
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1
drivers/net/i40e/i40e_ethdev.c
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@ -510,6 +510,7 @@ static const struct eth_dev_ops i40e_eth_dev_ops = {
.mtu_set = i40e_dev_mtu_set, .mtu_set = i40e_dev_mtu_set,
.tm_ops_get = i40e_tm_ops_get, .tm_ops_get = i40e_tm_ops_get,
.tx_done_cleanup = i40e_tx_done_cleanup, .tx_done_cleanup = i40e_tx_done_cleanup,
.get_monitor_addr = i40e_get_monitor_addr,
}; };
/* store statistics names and its offset in stats structure */ /* store statistics names and its offset in stats structure */

25
drivers/net/i40e/i40e_rxtx.c
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@ -72,6 +72,31 @@
#define I40E_TX_OFFLOAD_NOTSUP_MASK \ #define I40E_TX_OFFLOAD_NOTSUP_MASK \
(PKT_TX_OFFLOAD_MASK ^ I40E_TX_OFFLOAD_MASK) (PKT_TX_OFFLOAD_MASK ^ I40E_TX_OFFLOAD_MASK)
int
i40e_get_monitor_addr(void *rx_queue, struct rte_power_monitor_cond *pmc)
{
struct i40e_rx_queue *rxq = rx_queue;
volatile union i40e_rx_desc *rxdp;
uint16_t desc;
desc = rxq->rx_tail;
rxdp = &rxq->rx_ring[desc];
/* watch for changes in status bit */
pmc->addr = &rxdp->wb.qword1.status_error_len;
/*
* we expect the DD bit to be set to 1 if this descriptor was already
* written to.
*/
pmc->val = rte_cpu_to_le_64(1 << I40E_RX_DESC_STATUS_DD_SHIFT);
pmc->mask = rte_cpu_to_le_64(1 << I40E_RX_DESC_STATUS_DD_SHIFT);
/* registers are 64-bit */
pmc->data_sz = sizeof(uint64_t);
return 0;
}
static inline void static inline void
i40e_rxd_to_vlan_tci(struct rte_mbuf *mb, volatile union i40e_rx_desc *rxdp) i40e_rxd_to_vlan_tci(struct rte_mbuf *mb, volatile union i40e_rx_desc *rxdp)
{ {

1
drivers/net/i40e/i40e_rxtx.h
View File

@ -248,6 +248,7 @@ uint16_t i40e_recv_scattered_pkts_vec_avx2(void *rx_queue,
struct rte_mbuf **rx_pkts, uint16_t nb_pkts); struct rte_mbuf **rx_pkts, uint16_t nb_pkts);
uint16_t i40e_xmit_pkts_vec_avx2(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t i40e_xmit_pkts_vec_avx2(void *tx_queue, struct rte_mbuf **tx_pkts,
uint16_t nb_pkts); uint16_t nb_pkts);
int i40e_get_monitor_addr(void *rx_queue, struct rte_power_monitor_cond *pmc);
/* For each value it means, datasheet of hardware can tell more details /* For each value it means, datasheet of hardware can tell more details
* *