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authorAkinobu Mita <akinobu.mita@gmail.com>2019-06-09 23:17:01 +0900
committerChristoph Hellwig <hch@lst.de>2019-06-21 11:15:50 +0200
commitf79d5fda4ea08c33a114087573d86f703149ee0e (patch)
tree486ed1a351edbbc6e771560b9ca11544fa65b8cc /drivers/nvme/host/nvme.h
parentnvme: prepare for fault injection into admin commands (diff)
downloadlinux-dev-f79d5fda4ea08c33a114087573d86f703149ee0e.tar.xz
linux-dev-f79d5fda4ea08c33a114087573d86f703149ee0e.zip
nvme: enable to inject errors into admin commands
This enables to inject errors into the commands submitted to the admin queue. It is useful to test error handling in the controller initialization. # echo 100 > /sys/kernel/debug/nvme0/fault_inject/probability # echo 1 > /sys/kernel/debug/nvme0/fault_inject/times # echo 10 > /sys/kernel/debug/nvme0/fault_inject/space # nvme reset /dev/nvme0 # dmesg ... nvme nvme0: Could not set queue count (16385) nvme nvme0: IO queues not created Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Reviewed-by: Minwoo Im <minwoo.im.dev@gmail.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to '')
-rw-r--r--drivers/nvme/host/nvme.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index 8f907576efb6..ea45d7d393ad 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -256,6 +256,8 @@ struct nvme_ctrl {
struct page *discard_page;
unsigned long discard_page_busy;
+
+ struct nvme_fault_inject fault_inject;
};
enum nvme_iopolicy {