Re: [PATCH net] i40e: Enforce software interrupt during busy-poll exit

[Ivan Vecera <ivecera@redhat.com>]

On 13. 03. 24 14:47, Michal Schmidt wrote:
>> -/* a small macro to shorten up some long lines */
>> -#define INTREG I40E_PFINT_DYN_CTLN
>> +static inline u32 i40e_buildreg_swint(int type)
>> +{
>> +       u32 val;
>> +
>> +       /* 1. Enable the interrupt
>> +        * 2. Do not modify any ITR interval
>> +        * 3. Trigger a SW interrupt specified by type
>> +        */
>> +       val = I40E_PFINT_DYN_CTLN_INTENA_MASK |
>> +             I40E_PFINT_DYN_CTLN_ITR_INDX_MASK | /* set noitr */
>> +             I40E_PFINT_DYN_CTLN_SWINT_TRIG_MASK |
>> +             I40E_PFINT_DYN_CTLN_SW_ITR_INDX_ENA_MASK |
>> +             FIELD_PREP(I40E_PFINT_DYN_CTLN_SW_ITR_INDX_MASK, type);
>> +
>> +       return val;
>> +}
> This function is called only from one place and with a constant
> argument. Does it  really need to be a function, as opposed to a
> constant? Or are you going to add more callers soon?

This can be reused also from i40e_force_wb() but I didn't want to make 
such refactors in this fix. Lets do it later in -next.

Ivan