Add nvme_mpath_get_access_state(), which gets the NS ana_state and translates into enum mpath_access_state.
This replicates functionality for checking ana state in __nvme_find_path(). Signed-off-by: John Garry <[email protected]> --- drivers/nvme/host/multipath.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c index 07461a7d8d1fa..a67db36f3c5a5 100644 --- a/drivers/nvme/host/multipath.c +++ b/drivers/nvme/host/multipath.c @@ -1464,6 +1464,24 @@ void nvme_mpath_uninit(struct nvme_ctrl *ctrl) ctrl->ana_log_size = 0; } +static enum mpath_access_state nvme_mpath_get_access_state( + struct mpath_device *mpath_device) +{ + struct nvme_ns *ns = nvme_mpath_to_ns(mpath_device); + + switch (ns->ana_state) { + case NVME_ANA_OPTIMIZED: + return MPATH_STATE_OPTIMIZED; + case NVME_ANA_NONOPTIMIZED: + return MPATH_STATE_ACTIVE; + case NVME_ANA_INACCESSIBLE: + case NVME_ANA_PERSISTENT_LOSS: + case NVME_ANA_CHANGE: + default: + return MPATH_STATE_INVALID; + } +} + __maybe_unused static const struct mpath_head_template mpdt = { .available_path = nvme_mpath_available_path, @@ -1471,4 +1489,5 @@ static const struct mpath_head_template mpdt = { .del_cdev = nvme_mpath_del_cdev, .is_disabled = nvme_mpath_is_disabled, .is_optimized = nvme_mpath_is_optimized, + .get_access_state = nvme_mpath_get_access_state, }; -- 2.43.5
