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sfc: Disable interrupts after a fatal interrupt occurs until reset

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This should avoid an interrupt storm, which has been observed in the
field with one faulty board.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Ben Hutchings 2008-09-01 12:50:14 +01:00 committed by Jeff Garzik
parent 1d0680fd62
commit 0a62f1a681
1 changed files with 2 additions and 1 deletions
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3
drivers/net/sfc/falcon.c
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@ -1374,10 +1374,11 @@ static irqreturn_t falcon_fatal_interrupt(struct efx_nic *efx)
EFX_OWORD_FMT "\n", EFX_OWORD_VAL(reg));
}
/* Disable DMA bus mastering on both devices */
/* Disable both devices */
pci_disable_device(efx->pci_dev);
if (FALCON_IS_DUAL_FUNC(efx))
pci_disable_device(nic_data->pci_dev2);
falcon_disable_interrupts(efx);
if (++n_int_errors < FALCON_MAX_INT_ERRORS) {
EFX_ERR(efx, "SYSTEM ERROR - reset scheduled\n");