Re: [PATCH v3 1/2] Perform additional retries if Doorbell read returns 0

Hi Ranjan!

...

This HW bug impacts only a few registers. However, for code simplicity, we added retry logic(of 3 retries count) for all registers exposed to the driver.

Now the recommendation is:

• Increase retry count from 3 to 30 for only impacted registers.
• We also do not want to reduce the retries from 3 to 1 for non-impacted registers to avoid any regression.

Hence, this patch retries upto 30 times for impacted registers and 3 times for non-impacted registers.

What is the adverse affect is of having a loop iterator of 30 if the non-impacted registers always return a non-zero value after 1 to 3 attempts?