[dpdk-dev] [PATCH v16 10/11] net/ice: implement power management API
From: Anatoly Burakov <hidden>
Date: 2021-01-12 17:39:00
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Liang Ma <redacted> 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 <redacted> Signed-off-by: Anatoly Burakov <redacted> Acked-by: Konstantin Ananyev <redacted> --- drivers/net/ice/ice_ethdev.c | 1 + drivers/net/ice/ice_rxtx.c | 26 ++++++++++++++++++++++++++ drivers/net/ice/ice_rxtx.h | 1 + 3 files changed, 28 insertions(+)
diff --git a/drivers/net/ice/ice_ethdev.c b/drivers/net/ice/ice_ethdev.c
index 587f485ee3..38c6263946 100644
--- a/drivers/net/ice/ice_ethdev.c
+++ b/drivers/net/ice/ice_ethdev.c@@ -216,6 +216,7 @@ static const struct eth_dev_ops ice_eth_dev_ops = { .udp_tunnel_port_add = ice_dev_udp_tunnel_port_add, .udp_tunnel_port_del = ice_dev_udp_tunnel_port_del, .tx_done_cleanup = ice_tx_done_cleanup, + .get_monitor_addr = ice_get_monitor_addr, }; /* store statistics names and its offset in stats structure */
diff --git a/drivers/net/ice/ice_rxtx.c b/drivers/net/ice/ice_rxtx.c
index d052bd0f1b..066651dc48 100644
--- a/drivers/net/ice/ice_rxtx.c
+++ b/drivers/net/ice/ice_rxtx.c@@ -26,6 +26,32 @@ uint64_t rte_net_ice_dynflag_proto_xtr_ipv6_flow_mask; uint64_t rte_net_ice_dynflag_proto_xtr_tcp_mask; uint64_t rte_net_ice_dynflag_proto_xtr_ip_offset_mask; +int +ice_get_monitor_addr(void *rx_queue, struct rte_power_monitor_cond *pmc) +{ + volatile union ice_rx_flex_desc *rxdp; + struct ice_rx_queue *rxq = rx_queue; + uint16_t desc; + + desc = rxq->rx_tail; + rxdp = &rxq->rx_ring[desc]; + /* watch for changes in status bit */ + pmc->addr = &rxdp->wb.status_error0; + + /* + * we expect the DD bit to be set to 1 if this descriptor was already + * written to. + */ + pmc->val = rte_cpu_to_le_16(1 << ICE_RX_FLEX_DESC_STATUS0_DD_S); + pmc->mask = rte_cpu_to_le_16(1 << ICE_RX_FLEX_DESC_STATUS0_DD_S); + + /* register is 16-bit */ + pmc->data_sz = sizeof(uint16_t); + + return 0; +} + + static inline uint8_t ice_proto_xtr_type_to_rxdid(uint8_t xtr_type) {
diff --git a/drivers/net/ice/ice_rxtx.h b/drivers/net/ice/ice_rxtx.h
index 6b16716063..906fbefdc4 100644
--- a/drivers/net/ice/ice_rxtx.h
+++ b/drivers/net/ice/ice_rxtx.h@@ -263,6 +263,7 @@ uint16_t ice_xmit_pkts_vec_avx512(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts); int ice_fdir_programming(struct ice_pf *pf, struct ice_fltr_desc *fdir_desc); int ice_tx_done_cleanup(void *txq, uint32_t free_cnt); +int ice_get_monitor_addr(void *rx_queue, struct rte_power_monitor_cond *pmc); #define FDIR_PARSING_ENABLE_PER_QUEUE(ad, on) do { \ int i; \
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2.25.1