Re: [dpdk-dev] [PATCH v2] fm10k: fix PF/VF MAC address register and clean up bug

["Qiu, Michael" <michael.qiu@intel.com>]

Tested-by: Michael Qiu <michael.qiu@intel.com>

- OS: Fedora20  3.11.10-301
- GCC: gcc version 4.8.3 2014911
- CPU: Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
- NIC: Ethernet controller: Intel Corporation Device 15a4 (rev 01)
- Default x86_64-native-linuxapp-gcc configuration
- Total 1 cases, 1 passed, 0 failed


On 6/15/2015 9:26 AM, He, Shaopeng wrote:
> v2 changes:
>  - rebase this patch onto the HEAD
>  - add more description for this patch
>
> This patch includes 3 changes related to MAC/VLAN address table
> when the system(e.g. testpmd) is started and closed:
>  - remove default MAC address with fixed VLAN 0 which was for the
>    debug purpose before the MAC/VLAN filter function was implemented.
>  - enable VF MAC/VLAN filter for the first valid MAC address
>    and first valid VLAN ID. This is needed for system(e.g. testpmd)
>    to setup default MAC address and default VLAN for VF.
>    Later attempt to change these default value will be refused by
>    under layer shared code and PF host functions.
>  - un-register any combination of VLAN and MAC address from fm10k
>    switch side MAC table when the system(e.g. testpmd) is closed.
>
> Signed-off-by: Shaopeng He <shaopeng.he@intel.com>
> ---
>  drivers/net/fm10k/fm10k_ethdev.c | 42 ++++++++++++++++++++++------------------
>  1 file changed, 23 insertions(+), 19 deletions(-)
>
> diff --git a/drivers/net/fm10k/fm10k_ethdev.c b/drivers/net/fm10k/fm10k_ethdev.c
> index 802a930..625fd31 100644
> --- a/drivers/net/fm10k/fm10k_ethdev.c
> +++ b/drivers/net/fm10k/fm10k_ethdev.c
> @@ -58,6 +58,8 @@ static int
>  fm10k_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on);
>  static void
>  fm10k_MAC_filter_set(struct rte_eth_dev *dev, const u8 *mac, bool add);
> +static void
> +fm10k_MACVLAN_remove_all(struct rte_eth_dev *dev);
>  
>  static void
>  fm10k_mbx_initlock(struct fm10k_hw *hw)
> @@ -703,6 +705,8 @@ fm10k_dev_close(struct rte_eth_dev *dev)
>  
>  	PMD_INIT_FUNC_TRACE();
>  
> +	fm10k_MACVLAN_remove_all(dev);
> +
>  	/* Stop mailbox service first */
>  	fm10k_close_mbx_service(hw);
>  	fm10k_dev_stop(dev);
> @@ -832,12 +836,6 @@ fm10k_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
>  	hw = FM10K_DEV_PRIVATE_TO_HW(dev->data->dev_private);
>  	macvlan = FM10K_DEV_PRIVATE_TO_MACVLAN(dev->data->dev_private);
>  
> -	/* @todo - add support for the VF */
> -	if (hw->mac.type != fm10k_mac_pf) {
> -		PMD_INIT_LOG(ERR, "VLAN filter not available on VF");
> -		return -ENOTSUP;
> -	}
> -
>  	if (vlan_id > ETH_VLAN_ID_MAX) {
>  		PMD_INIT_LOG(ERR, "Invalid vlan_id: must be < 4096");
>  		return (-EINVAL);
> @@ -926,12 +924,6 @@ fm10k_MAC_filter_set(struct rte_eth_dev *dev, const u8 *mac, bool add)
>  	hw = FM10K_DEV_PRIVATE_TO_HW(dev->data->dev_private);
>  	macvlan = FM10K_DEV_PRIVATE_TO_MACVLAN(dev->data->dev_private);
>  
> -	/* @todo - add support for the VF */
> -	if (hw->mac.type != fm10k_mac_pf) {
> -		PMD_INIT_LOG(ERR, "MAC filter not available on VF");
> -		return;
> -	}
> -
>  	i = 0;
>  	for (j = 0; j < FM10K_VFTA_SIZE; j++) {
>  		if (macvlan->vfta[j]) {
> @@ -981,6 +973,25 @@ fm10k_macaddr_remove(struct rte_eth_dev *dev, uint32_t index)
>  				FALSE);
>  }
>  
> +/* Remove all VLAN and MAC address table entries */
> +static void
> +fm10k_MACVLAN_remove_all(struct rte_eth_dev *dev)
> +{
> +	uint32_t j, k;
> +	struct fm10k_macvlan_filter_info *macvlan;
> +
> +	macvlan = FM10K_DEV_PRIVATE_TO_MACVLAN(dev->data->dev_private);
> +	for (j = 0; j < FM10K_VFTA_SIZE; j++) {
> +		if (macvlan->vfta[j]) {
> +			for (k = 0; k < FM10K_UINT32_BIT_SIZE; k++) {
> +				if (macvlan->vfta[j] & (1 << k))
> +					fm10k_vlan_filter_set(dev,
> +						j * FM10K_UINT32_BIT_SIZE + k, false);
> +			}
> +		}
> +	}
> +}
> +
>  static inline int
>  check_nb_desc(uint16_t min, uint16_t max, uint16_t mult, uint16_t request)
>  {
> @@ -2008,13 +2019,6 @@ eth_fm10k_dev_init(struct rte_eth_dev *dev)
>  	/* Enable port first */
>  	hw->mac.ops.update_lport_state(hw, hw->mac.dglort_map, 1, 1);
>  
> -	/*
> -	 * Add default mac. glort is assigned by SM for PF, while is
> -	 * unused for VF. PF will assign correct glort for VF.
> -	 */
> -	hw->mac.ops.update_uc_addr(hw, hw->mac.dglort_map, hw->mac.addr,
> -				0, 1, 0);
> -
>  	/* Set unicast mode by default. App can change to other mode in other
>  	 * API func.
>  	 */