hssi: increate timeout to 1 second #3132
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binaries/hssi/ethernet/hssicommon.py
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| # Mailbox register poll timeout 1 second. Responses are typically much | ||
| # faster than one second, but in rare cases can take a while. No reason | ||
| # to make this short since timeout is generally a failure. | ||
| HSSI_POLL_TIMEOUT = 1 |
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In the Linux Kernel the units of the timeout are usually given in the macro name
HSSI_POLL_TIMEOUT_MS or HSSI_POLL_TIMEOUT_SEC would be clearer.
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Some operations are taking longer than the current timeout, such as putting an HSSI port in loopback. Timeout is a failure, so waiting a little long isn't a problem. Actual completion observed has been over 100ms, so chose 1 second. The current timeout logic could be improved but is not changed in this commit. Time passed is calculated as the sum of sleep times, which assumes MMIO reads are free and sleep is exactly the requested wait. Signed-off-by: Michael Adler <michael.adler@intel.com>
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Some operations are taking longer than the current timeout, such as putting an HSSI port in loopback. Timeout is a failure, so waiting a little long isn't a problem. Actual completion observed has been over 100ms, so chose 1 second.
The current timeout logic could be improved but is not changed in this commit. Time passed is calculated as the sum of sleep times, which assumes MMIO reads are free and sleep is exactly the requested wait.
Tests run:
Set loopback on 8x25 interfaces in iseries-dk, n6001