From 0a62f1a681006719c226a682dbcfb4358c8b3d28 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Mon, 1 Sep 2008 12:50:14 +0100 Subject: [PATCH] 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 Signed-off-by: Jeff Garzik --- drivers/net/sfc/falcon.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c index 3a5289fe8d1d..d30c938d0fbf 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"); -- 2.20.1