diff options
Diffstat (limited to 'drivers/nvme/host/nvme.h')
| -rw-r--r-- | drivers/nvme/host/nvme.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index 0521e4707d1c..9a3d3540aa6a 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -21,6 +21,7 @@ #include <linux/blk-mq.h> #include <linux/lightnvm.h> #include <linux/sed-opal.h> +#include <linux/fault-inject.h> extern unsigned int nvme_io_timeout; #define NVME_IO_TIMEOUT (nvme_io_timeout * HZ) @@ -261,6 +262,15 @@ struct nvme_ns_head { int instance; }; +#ifdef CONFIG_FAULT_INJECTION_DEBUG_FS +struct nvme_fault_inject { + struct fault_attr attr; + struct dentry *parent; + bool dont_retry; /* DNR, do not retry */ + u16 status; /* status code */ +}; +#endif + struct nvme_ns { struct list_head list; @@ -282,6 +292,11 @@ struct nvme_ns { #define NVME_NS_REMOVING 0 #define NVME_NS_DEAD 1 u16 noiob; + +#ifdef CONFIG_FAULT_INJECTION_DEBUG_FS + struct nvme_fault_inject fault_inject; +#endif + }; struct nvme_ctrl_ops { @@ -300,6 +315,16 @@ struct nvme_ctrl_ops { int (*reinit_request)(void *data, struct request *rq); }; +#ifdef CONFIG_FAULT_INJECTION_DEBUG_FS +void nvme_fault_inject_init(struct nvme_ns *ns); +void nvme_fault_inject_fini(struct nvme_ns *ns); +void nvme_should_fail(struct request *req); +#else +static inline void nvme_fault_inject_init(struct nvme_ns *ns) {} +static inline void nvme_fault_inject_fini(struct nvme_ns *ns) {} +static inline void nvme_should_fail(struct request *req) {} +#endif + static inline bool nvme_ctrl_ready(struct nvme_ctrl *ctrl) { u32 val = 0; @@ -336,6 +361,8 @@ static inline void nvme_end_request(struct request *req, __le16 status, rq->status = le16_to_cpu(status) >> 1; rq->result = result; + /* inject error when permitted by fault injection framework */ + nvme_should_fail(req); blk_mq_complete_request(req); } |
