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Commit 85f8a435 authored by Sagi Grimberg's avatar Sagi Grimberg
Browse files

nvme: send discovery log page change events to userspace 



If the controller supports discovery log page change events,
we want to enable it. When we see a discovery log change event
we will send it up to userspace and expect it to handle it.

Reviewed-by: default avatarMinwoo Im <minwoo.im.dev@gmail.com>
Reviewed-by: default avatarJames Smart <james.smart@broadcom.com>
Reviewed-by: default avatarHannes Reinecke <hare@suse.com>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarChaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: default avatarSagi Grimberg <sagi@grimberg.me>
parent a42f42e5

drivers/nvme/host/core.c

+5 −1
Original line number Original line Diff line number Diff line
@@ -1185,7 +1185,8 @@ int nvme_set_queue_count(struct nvme_ctrl *ctrl, int *count) 
EXPORT_SYMBOL_GPL(nvme_set_queue_count);

EXPORT_SYMBOL_GPL(nvme_set_queue_count);





#define NVME_AEN_SUPPORTED \

#define NVME_AEN_SUPPORTED \

	(NVME_AEN_CFG_NS_ATTR | NVME_AEN_CFG_FW_ACT | NVME_AEN_CFG_ANA_CHANGE)

	(NVME_AEN_CFG_NS_ATTR | NVME_AEN_CFG_FW_ACT | \

	 NVME_AEN_CFG_ANA_CHANGE | NVME_AEN_CFG_DISC_CHANGE)





static void nvme_enable_aen(struct nvme_ctrl *ctrl)

static void nvme_enable_aen(struct nvme_ctrl *ctrl)

{

{
@@ -3768,6 +3769,9 @@ static void nvme_handle_aen_notice(struct nvme_ctrl *ctrl, u32 result) 
		queue_work(nvme_wq, &ctrl->ana_work);

		queue_work(nvme_wq, &ctrl->ana_work);

		break;

		break;

#endif

#endif

	case NVME_AER_NOTICE_DISC_CHANGED:

		ctrl->aen_result = result;

		break;

	default:

	default:

		dev_warn(ctrl->device, "async event result %08x\n", result);

		dev_warn(ctrl->device, "async event result %08x\n", result);

	}

	}