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isci: Wait for RNC resumption before leaving the abort path.

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In the case of TMF execution, or device resets, wait for the RNC to fully
resume before returning to the caller.  This ensures that the remote
device will not fail I/O requests while waiting for the RNC resumption to
complete.

Signed-off-by: Jeff Skirvin <jeffrey.d.skirvin@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Jeff Skirvin
2012-03-08 22:42:04 -08:00
committed by Dan Williams
parent d76689e46c
commit 0cce165e28
2 changed files with 53 additions and 2 deletions
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3
drivers/scsi/isci/remote_device.h
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@@ -87,6 +87,7 @@ struct isci_remote_device {
#define IDEV_IO_NCQERROR 5
#define IDEV_RNC_LLHANG_ENABLED 6
#define IDEV_ABORT_PATH_ACTIVE 7
#define IDEV_ABORT_PATH_RESUME_PENDING 8
unsigned long flags;
struct kref kref;
struct isci_port *isci_port;
@@ -101,6 +102,8 @@ struct isci_remote_device {
u32 started_request_count;
struct isci_request *working_request;
u32 not_ready_reason;
scics_sds_remote_node_context_callback abort_resume_cb;
void *abort_resume_cbparam;
};
#define ISCI_REMOTE_DEVICE_START_TIMEOUT 5000