On Wed, Oct 16, 2019 at 10:36:22AM +0300, Ioana Ciornei wrote:
> From: Florin Chiculita <[email protected]>
> 
> Add IRQ for the DPNI endpoint change event, resolving the issue
> when a dynamically created DPNI gets a randomly generated hw address
> when the endpoint is a DPMAC object.
> 
> Signed-off-by: Florin Chiculita <[email protected]>
> Signed-off-by: Ioana Ciornei <[email protected]>
> ---
> Changes in v2:
>  - none
> Changes in v3:
>  - none
> 
>  drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c | 6 +++++-
>  drivers/net/ethernet/freescale/dpaa2/dpni.h      | 5 ++++-
>  2 files changed, 9 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c 
> b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
> index 162d7d8fb295..5acd734a216b 100644
> --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
> +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
> @@ -3306,6 +3306,9 @@ static irqreturn_t dpni_irq0_handler_thread(int 
> irq_num, void *arg)
>       if (status & DPNI_IRQ_EVENT_LINK_CHANGED)
>               link_state_update(netdev_priv(net_dev));
>  
> +     if (status & DPNI_IRQ_EVENT_ENDPOINT_CHANGED)
> +             set_mac_addr(netdev_priv(net_dev));
> +
>       return IRQ_HANDLED;
>  }
>  
> @@ -3331,7 +3334,8 @@ static int setup_irqs(struct fsl_mc_device *ls_dev)
>       }
>  
>       err = dpni_set_irq_mask(ls_dev->mc_io, 0, ls_dev->mc_handle,
> -                             DPNI_IRQ_INDEX, DPNI_IRQ_EVENT_LINK_CHANGED);
> +                             DPNI_IRQ_INDEX, DPNI_IRQ_EVENT_LINK_CHANGED |
> +                             DPNI_IRQ_EVENT_ENDPOINT_CHANGED);
>       if (err < 0) {
>               dev_err(&ls_dev->dev, "dpni_set_irq_mask(): %d\n", err);
>               goto free_irq;
> diff --git a/drivers/net/ethernet/freescale/dpaa2/dpni.h 
> b/drivers/net/ethernet/freescale/dpaa2/dpni.h
> index fd583911b6c0..ee0711d06b3a 100644
> --- a/drivers/net/ethernet/freescale/dpaa2/dpni.h
> +++ b/drivers/net/ethernet/freescale/dpaa2/dpni.h
> @@ -133,9 +133,12 @@ int dpni_reset(struct fsl_mc_io  *mc_io,
>   */
>  #define DPNI_IRQ_INDEX                               0
>  /**
> - * IRQ event - indicates a change in link state
> + * IRQ events:
> + *       indicates a change in link state
> + *       indicates a change in endpoint
>   */
>  #define DPNI_IRQ_EVENT_LINK_CHANGED          0x00000001
> +#define DPNI_IRQ_EVENT_ENDPOINT_CHANGED              0x00000002

Perhaps (as a follow-up?) this is a candidate for using the BIT() macro.

>  
>  int dpni_set_irq_enable(struct fsl_mc_io     *mc_io,
>                       u32                     cmd_flags,
> -- 
> 1.9.1
> 

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