[dpdk-dev,v2,1/8] net/i40e: add API to convert VF MAC to VSI index
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Commit Message
From: "Sexton, Rory" <rory.sexton@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.marjanovic@intel.com>
Signed-off-by: Rory Sexton <rory.sexton@intel.com>
Signed-off-by: David Hunt <david.hunt@intel.com>
---
drivers/net/i40e/rte_pmd_i40e.c | 35 +++++++++++++++++++++++++++++++++++
drivers/net/i40e/rte_pmd_i40e.h | 13 +++++++++++++
2 files changed, 48 insertions(+)
Comments
> -----Original Message-----
> From: Hunt, David
> Sent: Monday, September 25, 2017 8:27 PM
> To: dev@dpdk.org
> Cc: Ananyev, Konstantin <konstantin.ananyev@intel.com>; Wu, Jingjing
> <jingjing.wu@intel.com>; Sexton, Rory <rory.sexton@intel.com>; Marjanovic, Nemanja
> <nemanja.marjanovic@intel.com>; Hunt, David <david.hunt@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.sexton@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.marjanovic@intel.com>
> Signed-off-by: Rory Sexton <rory.sexton@intel.com>
> Signed-off-by: David Hunt <david.hunt@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
@@ -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;
+ }
+ if (mac_addr_matches)
+ return x;
+ }
+
+ return -EINVAL;
+}
@@ -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
+ *
+ * @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
+ */
+uint64_t rte_pmd_i40e_query_vfid_by_mac(uint8_t port, uint64_t vf_mac);
+
#endif /* _PMD_I40E_H_ */