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authorBen Hutchings <bhutchings@solarflare.com>2008-09-01 12:50:14 +0100
committerJeff Garzik <jgarzik@redhat.com>2008-09-24 18:54:40 -0400
commit0a62f1a681006719c226a682dbcfb4358c8b3d28 (patch)
tree19f3f64b5b4c720f2180730619fab56f172a6c1d
parent1d0680fd6235e0aa5baf14a8f1ff85eff9dc1fb3 (diff)
sfc: Disable interrupts after a fatal interrupt occurs until reset
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>
-rw-r--r--drivers/net/sfc/falcon.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index 3a5289fe8d1..d30c938d0fb 100644
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -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");