Hi Dave,
> -----Original Message-----
> From: Hunt, David
> Sent: Thursday, October 5, 2017 1:26 PM
> To: dev@dpdk.org
> Cc: Ananyev, Konstantin <konstantin.anan...@intel.com>; Wu, Jingjing
> <jingjing...@intel.com>; santosh.shu...@caviumnetworks.com;
> Sexton, Rory <rory.sex...@intel.com>; Marjanovic, Nemanja
> <nemanja.marjano...@intel.com>; Hunt, David <david.h...@intel.com>
> Subject: [PATCH v6 1/9] net/i40e: add API to convert VF MAC to VF id
>
> From: "Sexton, Rory" <rory.sex...@intel.com>
>
> 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 <nemanja.marjano...@intel.com>
> Signed-off-by: Rory Sexton <rory.sex...@intel.com>
> Signed-off-by: David Hunt <david.h...@intel.com>
> ---
> drivers/net/i40e/rte_pmd_i40e.c | 30 ++++++++++++++++++++++++++++++
> drivers/net/i40e/rte_pmd_i40e.h | 15 +++++++++++++++
> drivers/net/i40e/rte_pmd_i40e_version.map | 7 +++++++
> 3 files changed, 52 insertions(+)
>
> diff --git a/drivers/net/i40e/rte_pmd_i40e.c b/drivers/net/i40e/rte_pmd_i40e.c
> index f12b7f4..541d575 100644
> --- a/drivers/net/i40e/rte_pmd_i40e.c
> +++ b/drivers/net/i40e/rte_pmd_i40e.c
> @@ -2115,3 +2115,33 @@ int rte_pmd_i40e_ptype_mapping_replace(uint8_t port,
>
> return 0;
> }
> +
> +int64_t
> +rte_pmd_i40e_query_vfid_by_mac(uint8_t port, const struct ether_addr *vf_mac)
I don't think you need int64_t as a return value here.
Just 'int' seems good enough.
Anyway vf_id is just an 'int'.
Konstantin
> +{
> + struct rte_eth_dev *dev;
> + struct ether_addr *mac;
> + struct i40e_pf *pf;
> + int vf_id;
> + struct i40e_pf_vf *vf;
> + uint16_t vf_num;
> +
> + RTE_ETH_VALID_PORTID_OR_ERR_RET(port, -ENODEV);
> + dev = &rte_eth_devices[port];
> +
> + if (!is_i40e_supported(dev))
> + return -ENOTSUP;
> +
> + pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
> + vf_num = pf->vf_num;
> +
> + for (vf_id = 0; vf_id < vf_num; vf_id++) {
> + vf = &pf->vfs[vf_id];
> + mac = &vf->mac_addr;
> +
> + if (is_same_ether_addr(mac, vf_mac))
> + return vf_id;
> + }
> +
> + return -EINVAL;
> +}
> diff --git a/drivers/net/i40e/rte_pmd_i40e.h b/drivers/net/i40e/rte_pmd_i40e.h
> index 356fa89..2952ab0 100644
> --- a/drivers/net/i40e/rte_pmd_i40e.h
> +++ b/drivers/net/i40e/rte_pmd_i40e.h
> @@ -637,4 +637,19 @@ int rte_pmd_i40e_ptype_mapping_replace(uint8_t port,
> uint8_t mask,
> uint32_t pkt_type);
>
> +/**
> + * On the PF, find VF index based on VF MAC address
> + *
> + * @param port
> + * pointer to port identifier of the device
> + * @param vf_mac
> + * the mac address of the vf to determine index of
> + * @return
> + * The index of vfid If successful.
> + * -EINVAL: vf mac address does not exist for this port
> + * -ENOTSUP: i40e not supported for this port.
> + */
> +int64_t rte_pmd_i40e_query_vfid_by_mac(uint8_t port,
> + const struct ether_addr *vf_mac);
> +
> #endif /* _PMD_I40E_H_ */
> diff --git a/drivers/net/i40e/rte_pmd_i40e_version.map
> b/drivers/net/i40e/rte_pmd_i40e_version.map
> index 20cc980..d8b74bd 100644
> --- a/drivers/net/i40e/rte_pmd_i40e_version.map
> +++ b/drivers/net/i40e/rte_pmd_i40e_version.map
> @@ -45,3 +45,10 @@ DPDK_17.08 {
> rte_pmd_i40e_get_ddp_info;
>
> } DPDK_17.05;
> +
> +DPDK_17.11 {
> + global:
> +
> + rte_pmd_i40e_query_vfid_by_mac;
> +
> +} DPDK_17.08;
> --
> 2.7.4
