As Thomas asked, I am not quite sure if experimental tag needs to be added.
Please double check it.
Thanks,
Helin
> -----Original Message-----
> From: Zhang, Qi Z
> Sent: Friday, February 24, 2017 2:27 AM
> To: Wu, Jingjing; Zhang, Helin
> Cc: dev@dpdk.org; Zhang, Qi Z
> Subject: [PATCH] net/i40e: enable statistic reset for VF
>
> The patch implements the dev_ops "stats_reset" for VF.
>
> Signed-off-by: Qi Zhang <qi.z.zh...@intel.com>
> ---
> drivers/net/i40e/i40e_ethdev_vf.c | 34
> ++++++++++++++++++++++++++++++++++
> drivers/net/i40e/i40e_pf.c | 25 +++++++++++++++++++++++++
> drivers/net/i40e/i40e_pf.h | 1 +
> 3 files changed, 60 insertions(+)
>
> diff --git a/drivers/net/i40e/i40e_ethdev_vf.c
> b/drivers/net/i40e/i40e_ethdev_vf.c
> index 55fd344..5155b25 100644
> --- a/drivers/net/i40e/i40e_ethdev_vf.c
> +++ b/drivers/net/i40e/i40e_ethdev_vf.c
> @@ -110,6 +110,7 @@ static int i40evf_dev_link_update(struct rte_eth_dev
> *dev,
> __rte_unused int wait_to_complete); static
> void i40evf_dev_stats_get(struct rte_eth_dev *dev,
> struct rte_eth_stats *stats);
> +static void i40evf_dev_stats_reset(struct rte_eth_dev *dev);
> static int i40evf_dev_xstats_get(struct rte_eth_dev *dev,
> struct rte_eth_xstat *xstats, unsigned n);
> static int i40evf_dev_xstats_get_names(struct rte_eth_dev *dev, @@ -199,6
> +200,7 @@ static const struct eth_dev_ops i40evf_eth_dev_ops = {
> .allmulticast_disable = i40evf_dev_allmulticast_disable,
> .link_update = i40evf_dev_link_update,
> .stats_get = i40evf_dev_stats_get,
> + .stats_reset = i40evf_dev_stats_reset,
> .xstats_get = i40evf_dev_xstats_get,
> .xstats_get_names = i40evf_dev_xstats_get_names,
> .xstats_reset = i40evf_dev_xstats_reset,
> @@ -988,6 +990,27 @@ i40evf_get_statistics(struct rte_eth_dev *dev, struct
> rte_eth_stats *stats)
> return 0;
> }
>
> +static int
> +i40evf_reset_statistics(struct rte_eth_dev *dev) {
> + struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data-
> >dev_private);
> + int err;
> + struct vf_cmd_info args;
> + u16 vsi_id = vf->vsi_res->vsi_id;
Basically DPDK developers use uint16_t but not u16.
> +
> + args.ops = (enum i40e_virtchnl_ops)I40E_VIRTCHNL_OP_RESET_STATS;
> + args.in_args = (uint8_t *)&vsi_id;
> + args.in_args_size = sizeof(vsi_id);
> + args.out_buffer = vf->aq_resp;
> + args.out_size = I40E_AQ_BUF_SZ;
> +
> + err = i40evf_execute_vf_cmd(dev, &args);
> + if (err)
> + PMD_DRV_LOG(ERR, "fail to execute command
> CFG_VLAN_OFFLOAD");
> +
> + return err;
> +}
> +
> static void
> i40evf_dev_xstats_reset(struct rte_eth_dev *dev) { @@ -2310,6 +2333,17
> @@ i40evf_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats
> *stats) }
>
> static void
> +i40evf_dev_stats_reset(struct rte_eth_dev *dev) {
> + struct i40e_vf *vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data-
> >dev_private);
> + /* only DPDK PF support this */
> + if (vf->version_major == I40E_DPDK_VERSION_MAJOR) {
> + if (i40evf_reset_statistics(dev))
> + PMD_DRV_LOG(ERR, "Reset statistics failed");
> + }
> +}
> +
> +static void
> i40evf_dev_close(struct rte_eth_dev *dev) {
> struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data-
> >dev_private);
> diff --git a/drivers/net/i40e/i40e_pf.c b/drivers/net/i40e/i40e_pf.c index
> f771dfb..62d2bfd 100644
> --- a/drivers/net/i40e/i40e_pf.c
> +++ b/drivers/net/i40e/i40e_pf.c
> @@ -1155,6 +1155,27 @@ i40e_pf_host_process_cmd_cfg_pvid(struct
> i40e_pf_vf *vf,
> return ret;
> }
>
> +static int
> +i40e_pf_host_process_cmd_reset_stats(struct i40e_pf_vf *vf,
> + bool b_op)
> +{
> + vf->vsi->offset_loaded = false;
> + i40e_update_vsi_stats(vf->vsi);
Does it need to check the return value of above function call?
> +
> + if (b_op)
> + i40e_pf_host_send_msg_to_vf(vf,
> I40E_VIRTCHNL_OP_RESET_STATS,
> + I40E_SUCCESS,
> + NULL,
> + 0);
> + else
> + i40e_pf_host_send_msg_to_vf(vf,
> I40E_VIRTCHNL_OP_RESET_STATS,
> + I40E_NOT_SUPPORTED,
> + NULL,
> + 0);
> +
> + return I40E_SUCCESS;
> +}
> +
> void
> i40e_notify_vf_link_status(struct rte_eth_dev *dev, struct i40e_pf_vf *vf)
> { @@ -1300,6 +1321,10 @@ i40e_pf_host_handle_vf_msg(struct rte_eth_dev
> *dev,
> PMD_DRV_LOG(INFO, "OP_CFG_VLAN_PVID received");
> i40e_pf_host_process_cmd_cfg_pvid(vf, msg, msglen, b_op);
> break;
> + case I40E_VIRTCHNL_OP_RESET_STATS:
> + PMD_DRV_LOG(INFO, "OP_RESET_STATS received");
> + i40e_pf_host_process_cmd_reset_stats(vf, b_op);
> + break;
> /* Don't add command supported below, which will
> * return an error code.
> */
> diff --git a/drivers/net/i40e/i40e_pf.h b/drivers/net/i40e/i40e_pf.h index
> b4c2287..69ef873 100644
> --- a/drivers/net/i40e/i40e_pf.h
> +++ b/drivers/net/i40e/i40e_pf.h
> @@ -58,6 +58,7 @@ enum i40e_virtchnl_ops_dpdk {
> I40E_DPDK_OFFSET,
> I40E_VIRTCHNL_OP_CFG_VLAN_PVID,
> I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES_EXT,
> + I40E_VIRTCHNL_OP_RESET_STATS,
> };
>
> /* A structure to support extended info of a receive queue. */
> --
> 2.7.4
