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sfc: work around TRIGGER_INTERRUPT command not working on SFC9140

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MC_CMD_TRIGGER_INTERRUPT does not work on the SFC9140, as used in the
sfn7x42q and sfn7x24f.
Check for this using the MCDI workaround mechanism.
The command is only used during self test.  If it's not supported, skip
the interrupt test.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jon Cooper
2016-08-26 15:13:30 +01:00
committed by David S. Miller
parent df0562c386
commit 942e298eba
7 changed files with 23 additions and 10 deletions
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3
drivers/net/ethernet/sfc/farch.c
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@ -1477,9 +1477,10 @@ void efx_farch_irq_disable_master(struct efx_nic *efx)
* Interrupt must already have been enabled, otherwise nasty things
* may happen.
*/
void efx_farch_irq_test_generate(struct efx_nic *efx)
int efx_farch_irq_test_generate(struct efx_nic *efx)
{
efx_farch_interrupts(efx, true, true);
return 0;
}
/* Process a fatal interrupt