[PATCH v1 01/10] net/i40e: add API to convert VF Id to PF Id
From: David Hunt <hidden>
Date: 2017-08-25 16:02:31
Subsystem:
library code, networking drivers, the rest · Maintainers:
Andrew Morton, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Need a way to convert a vf id to a pf id on the host so as to query the pf for relevant statistics which are used for the frequency changes in the vm_power_manager app. Used when profiles are passed down from the guest to the host, allowing the host to map the vfs to pfs. Signed-off-by: Nemanja Marjanovic <redacted> Signed-off-by: Rory Sexton <redacted> Signed-off-by: David Hunt <redacted> --- drivers/net/i40e/i40e_ethdev.c | 1 + drivers/net/i40e/i40e_rxtx.c | 27 +++++++++++++++++++++++++++ drivers/net/i40e/i40e_rxtx.h | 1 + lib/librte_ether/rte_ethdev.h | 11 +++++++++++ 4 files changed, 40 insertions(+)
diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 5f26e24..8fb67d8 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c@@ -445,6 +445,7 @@ static const struct rte_pci_id pci_id_i40e_map[] = { }; static const struct eth_dev_ops i40e_eth_dev_ops = { + .vfid_to_pfid = i40e_vf_mac_to_vsi, .dev_configure = i40e_dev_configure, .dev_start = i40e_dev_start, .dev_stop = i40e_dev_stop,
diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c
index d42c23c..1379d5e 100644
--- a/drivers/net/i40e/i40e_rxtx.c
+++ b/drivers/net/i40e/i40e_rxtx.c@@ -806,6 +806,33 @@ i40e_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts) return nb_rx; } +uint64_t +i40e_vf_mac_to_vsi(struct rte_eth_dev *dev, uint64_t vfid) { + struct ether_addr *vf_mac_addr = (struct ether_addr *)&vfid; + struct ether_addr *mac; + struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private); + int vsi_id = 0, i, x; + struct i40e_pf_vf *vf; + uint16_t vf_num = pf->vf_num; + + for (x = 0; x < vf_num; x++) { + int mac_addr_matches = 1; + vf = &pf->vfs[x]; + mac = &vf->mac_addr; + + for (i = 0; i < ETHER_ADDR_LEN; i++) { + if (mac->addr_bytes[i] != vf_mac_addr->addr_bytes[i]) + mac_addr_matches = 0; + } + if (mac_addr_matches) { + vsi_id = vf->vsi->vsi_id; + return vsi_id; + } + } + + return -1; +} + uint16_t i40e_recv_scattered_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
diff --git a/drivers/net/i40e/i40e_rxtx.h b/drivers/net/i40e/i40e_rxtx.h
index 20084d6..bc6d355 100644
--- a/drivers/net/i40e/i40e_rxtx.h
+++ b/drivers/net/i40e/i40e_rxtx.h@@ -192,6 +192,7 @@ union i40e_tx_offload { }; }; +uint64_t i40e_vf_mac_to_vsi(struct rte_eth_dev *dev, uint64_t vfid); int i40e_dev_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id); int i40e_dev_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id); int i40e_dev_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id);
diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
index 0adf327..fec7e92 100644
--- a/lib/librte_ether/rte_ethdev.h
+++ b/lib/librte_ether/rte_ethdev.h@@ -1411,6 +1411,8 @@ typedef int (*eth_l2_tunnel_offload_set_t) uint8_t en); /**< @internal enable/disable the l2 tunnel offload functions */ +typedef uint64_t (*vfid_to_pfid)(struct rte_eth_dev *dev, + uint64_t vfid); typedef int (*eth_filter_ctrl_t)(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
@@ -1429,6 +1431,7 @@ typedef int (*eth_get_dcb_info)(struct rte_eth_dev *dev, * @internal A structure containing the functions exported by an Ethernet driver. */ struct eth_dev_ops { + vfid_to_pfid vfid_to_pfid; /**< Convert vfid to pfid */ eth_dev_configure_t dev_configure; /**< Configure device. */ eth_dev_start_t dev_start; /**< Start device. */ eth_dev_stop_t dev_stop; /**< Stop device. */
@@ -2928,6 +2931,14 @@ static inline int rte_eth_tx_descriptor_status(uint8_t port_id, return (*dev->dev_ops->tx_descriptor_status)(txq, offset); } +static inline uint64_t +vfid_to_pfid_direct(uint8_t port_id, uint64_t vfid) +{ + struct rte_eth_dev *dev = &rte_eth_devices[port_id]; + uint64_t pfid = (*dev->dev_ops->vfid_to_pfid)(dev, vfid); + return pfid; +} + /** * Send a burst of output packets on a transmit queue of an Ethernet device. *
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2.7.4