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Commit 3b1bef64 authored Feb 26, 2014 by Chad Dupuis Committed by James Bottomley Mar 15, 2014

[SCSI] qla2xxx: Set host can_queue value based on available resources.



Tell the mid-layer that number of commands we can queue is the available
resources we have minus a small amount for internal commands.

Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

parent 965c77a6

drivers/scsi/qla2xxx/qla_os.c

+10 −9

Original line number	Diff line number	Diff line
		@@ -2561,10 +2561,6 @@ qla2x00_probe_one(struct pci_dev pdev, const struct pci_device_id id)

		host = base_vha->host;
		base_vha->req = req;
		if (IS_QLAFX00(ha))
		host->can_queue = QLAFX00_MAX_CANQUEUE;
		else
		host->can_queue = req->length + 128;
		if (IS_QLA2XXX_MIDTYPE(ha))
		base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx;
		else
		@@ -2587,11 +2583,6 @@ qla2x00_probe_one(struct pci_dev pdev, const struct pci_device_id id)
		if (!IS_QLA82XX(ha))
		host->sg_tablesize = QLA_SG_ALL;
		}
		ql_dbg(ql_dbg_init, base_vha, 0x0032,
		"can_queue=%d, req=%p, "
		"mgmt_svr_loop_id=%d, sg_tablesize=%d.\n",
		host->can_queue, base_vha->req,
		base_vha->mgmt_svr_loop_id, host->sg_tablesize);
		host->max_id = ha->max_fibre_devices;
		host->cmd_per_lun = 3;
		host->unique_id = host->host_no;
		@@ -2707,6 +2698,16 @@ qla2x00_probe_one(struct pci_dev pdev, const struct pci_device_id id)
		goto probe_failed;
		}

		if (IS_QLAFX00(ha))
		host->can_queue = QLAFX00_MAX_CANQUEUE;
		else
		host->can_queue = req->num_outstanding_cmds - 10;

		ql_dbg(ql_dbg_init, base_vha, 0x0032,
		"can_queue=%d, req=%p, mgmt_svr_loop_id=%d, sg_tablesize=%d.\n",
		host->can_queue, base_vha->req,
		base_vha->mgmt_svr_loop_id, host->sg_tablesize);

		if (ha->mqenable) {
		if (qla25xx_setup_mode(base_vha)) {
		ql_log(ql_log_warn, base_vha, 0x00ec,