> -----Original Message-----
> From: Hunt, David
> Sent: Monday, September 25, 2017 8:27 PM
> To: dev@dpdk.org
> Cc: Ananyev, Konstantin <konstantin.anan...@intel.com>; Wu, Jingjing
> <jingjing...@intel.com>; Sexton, Rory <rory.sex...@intel.com>; Marjanovic,
> Nemanja
> <nemanja.marjano...@intel.com>; Hunt, David <david.h...@intel.com>
> Subject: [PATCH v2 1/8] net/i40e: add API to convert VF MAC to VSI index
>
VSI index -> 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 | 35 +++++++++++++++++++++++++++++++++++
> drivers/net/i40e/rte_pmd_i40e.h | 13 +++++++++++++
> 2 files changed, 48 insertions(+)
>
> diff --git a/drivers/net/i40e/rte_pmd_i40e.c b/drivers/net/i40e/rte_pmd_i40e.c
> index f12b7f4..85b540f 100644
> --- a/drivers/net/i40e/rte_pmd_i40e.c
> +++ b/drivers/net/i40e/rte_pmd_i40e.c
> @@ -2115,3 +2115,38 @@ int rte_pmd_i40e_ptype_mapping_replace(uint8_t port,
>
> return 0;
> }
> +
> +uint64_t
> +rte_pmd_i40e_query_vfid_by_mac(uint8_t port, uint64_t vf_mac) {
> + struct rte_eth_dev *dev;
> + struct ether_addr *vf_mac_addr = (struct ether_addr *)&vf_mac;
> + struct ether_addr *mac;
> + struct i40e_pf *pf;
> + int i, x;
> + 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 (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;
> + }
You can use is_same_ether_addr instead.
> + if (mac_addr_matches)
> + return x;
> + }
> +
> + return -EINVAL;
> +}
> diff --git a/drivers/net/i40e/rte_pmd_i40e.h b/drivers/net/i40e/rte_pmd_i40e.h
> index 356fa89..6984105 100644
> --- a/drivers/net/i40e/rte_pmd_i40e.h
> +++ b/drivers/net/i40e/rte_pmd_i40e.h
> @@ -637,4 +637,17 @@ int rte_pmd_i40e_ptype_mapping_replace(uint8_t port,
> uint8_t mask,
> uint32_t pkt_type);
>
> +/**
> + * Translate a VF mac address into VF index in array of pf->vfs
VF id is a command concept, no need to say it is the index in pf->vfs
> + *
> + * @param port
> + * pointer to port identifier of the device
> + * @param vf_mac
> + * the mac address of the vf to determine index of
> + * @return
> + * -(-22 EINVAL) the vf mac does not exist on this port
> + * -(!-22) the index of vfid in pf->vfs
Thanks
Jingjing
