The driver does not implement a shutdown handler which leads to issues
when using kexec in certain scenarios. The NIC keeps on fetching
descriptors which gets flagged by the IOMMU with errors like this:
DMAR: DMAR:[DMA read] Request device [5e:00.0]fault addr fffff000
DMAR: DMAR:[DMA read] Request device [5e:00.0]fault addr fffff000
DMAR: DMAR:[DMA read] Request device [5e:00.0]fault addr fffff000
DMAR: DMAR:[DMA read] Request device [5e:00.0]fault addr fffff000
DMAR: DMAR:[DMA read] Request device [5e:00.0]fault addr fffff000
Signed-off-by: Moritz Fischer <mdf@xxxxxxxxxx>
---
Hi all,
I'm not sure if this is the proper way for a shutdown handler,
I've tried to look at a bunch of examples and couldn't find a specific
solution, in my tests on hardware this works, though.
Open to suggestions.
Thanks,
Moritz
---
drivers/net/ethernet/dec/tulip/de2104x.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/ethernet/dec/tulip/de2104x.c b/drivers/net/ethernet/dec/tulip/de2104x.c
index f1a2da15dd0a..372c62c7e60f 100644
--- a/drivers/net/ethernet/dec/tulip/de2104x.c
+++ b/drivers/net/ethernet/dec/tulip/de2104x.c
@@ -2185,6 +2185,7 @@ static struct pci_driver de_driver = {
.id_table = de_pci_tbl,
.probe = de_init_one,
.remove = de_remove_one,
+ .shutdown = de_remove_one,
#ifdef CONFIG_PM
.suspend = de_suspend,
.resume = de_resume,
--
2.28.0
