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Commit 89dac7bb authored by Christoph Hellwig's avatar Christoph Hellwig
Browse files

lpfc: remove queue_depth events 



James Smart said the userspace to consume these events never emerged.  Given
that these get in the way of the following patches remove support for them.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarMike Christie <michaelc@cs.wisc.edu>
Reviewed-by: default avatarHannes Reinecke <hare@suse.de>
Acked-by: default avatarJames Smart <james.smart@emulex.com>
parent aa00832b

drivers/scsi/lpfc/lpfc_scsi.c

+0 −66
Original line number Diff line number Diff line
@@ -242,60 +242,6 @@ lpfc_update_stats(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) 
	spin_unlock_irqrestore(shost->host_lock, flags);

}



/**

 * lpfc_send_sdev_queuedepth_change_event - Posts a queuedepth change event

 * @phba: Pointer to HBA context object.

 * @vport: Pointer to vport object.

 * @ndlp: Pointer to FC node associated with the target.

 * @lun: Lun number of the scsi device.

 * @old_val: Old value of the queue depth.

 * @new_val: New value of the queue depth.

 *

 * This function sends an event to the mgmt application indicating

 * there is a change in the scsi device queue depth.

 **/

static void

lpfc_send_sdev_queuedepth_change_event(struct lpfc_hba *phba,

		struct lpfc_vport  *vport,

		struct lpfc_nodelist *ndlp,

		uint64_t lun,

		uint32_t old_val,

		uint32_t new_val)

{

	struct lpfc_fast_path_event *fast_path_evt;

	unsigned long flags;



	fast_path_evt = lpfc_alloc_fast_evt(phba);

	if (!fast_path_evt)

		return;



	fast_path_evt->un.queue_depth_evt.scsi_event.event_type =

		FC_REG_SCSI_EVENT;

	fast_path_evt->un.queue_depth_evt.scsi_event.subcategory =

		LPFC_EVENT_VARQUEDEPTH;



	/* Report all luns with change in queue depth */

	fast_path_evt->un.queue_depth_evt.scsi_event.lun = lun;

	if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {

		memcpy(&fast_path_evt->un.queue_depth_evt.scsi_event.wwpn,

			&ndlp->nlp_portname, sizeof(struct lpfc_name));

		memcpy(&fast_path_evt->un.queue_depth_evt.scsi_event.wwnn,

			&ndlp->nlp_nodename, sizeof(struct lpfc_name));

	}



	fast_path_evt->un.queue_depth_evt.oldval = old_val;

	fast_path_evt->un.queue_depth_evt.newval = new_val;

	fast_path_evt->vport = vport;



	fast_path_evt->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT;

	spin_lock_irqsave(&phba->hbalock, flags);

	list_add_tail(&fast_path_evt->work_evt.evt_listp, &phba->work_list);

	spin_unlock_irqrestore(&phba->hbalock, flags);

	lpfc_worker_wake_up(phba);



	return;

}



/**

 * lpfc_change_queue_depth - Alter scsi device queue depth

 * @sdev: Pointer the scsi device on which to change the queue depth.
@@ -310,11 +256,6 @@ static int 
lpfc_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)

{

	struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata;

	struct lpfc_hba   *phba = vport->phba;

	struct lpfc_rport_data *rdata;

	unsigned long new_queue_depth, old_queue_depth;



	old_queue_depth = sdev->queue_depth;



	switch (reason) {

	case SCSI_QDEPTH_DEFAULT:
@@ -334,13 +275,6 @@ lpfc_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) 
		return -EOPNOTSUPP;

	}



	new_queue_depth = sdev->queue_depth;

	rdata = lpfc_rport_data_from_scsi_device(sdev);

	if (rdata)

		lpfc_send_sdev_queuedepth_change_event(phba, vport,

						       rdata->pnode, sdev->lun,

						       old_queue_depth,

						       new_queue_depth);

	return sdev->queue_depth;

}