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[SCSI] qla2xxx: Allow an override of the registered maximum LUN. 

The 'max_lun' value registered for each scsi_host is currently
capped at 0xffff.  The new module parameter can allow for
2nd-level flat-space addressing method-infrastructure to be
supported.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Andrew Vasquez 2011-05-10 11:30:13 -07:00 committed by James Bottomley
parent 24014d0464
commit 82515920b6
3 changed files with 9 additions and 2 deletions
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1
drivers/scsi/qla2xxx/qla_gbl.h
View File

@ -103,6 +103,7 @@ extern int ql2xenabledif;
extern int ql2xenablehba_err_chk;
extern int ql2xtargetreset;
extern int ql2xdontresethba;
extern unsigned int ql2xmaxlun;
extern int qla2x00_loop_reset(scsi_qla_host_t *);
extern void qla2x00_abort_all_cmds(scsi_qla_host_t *, int);

2
drivers/scsi/qla2xxx/qla_mid.c
View File

@ -456,7 +456,7 @@ qla24xx_create_vhost(struct fc_vport *fc_vport)
else
host->max_cmd_len = MAX_CMDSZ;
host->max_channel = MAX_BUSES - 1;
host->max_lun = MAX_LUNS;
host->max_lun = ql2xmaxlun;
host->unique_id = host->host_no;
host->max_id = MAX_TARGETS_2200;
host->transportt = qla2xxx_transport_vport_template;

8
drivers/scsi/qla2xxx/qla_os.c
View File

@ -172,6 +172,12 @@ MODULE_PARM_DESC(ql2xdontresethba,
" 0 (Default) -- Reset on failure.\n"
" 1 -- Do not reset on failure.\n");
uint ql2xmaxlun = MAX_LUNS;
module_param(ql2xmaxlun, uint, S_IRUGO);
MODULE_PARM_DESC(ql2xmaxlun,
"Defines the maximum LU number to register with the SCSI "
"midlayer. Default is 65535.");
/*
* SCSI host template entry points
*/
@ -2136,7 +2142,7 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
else
host->max_cmd_len = MAX_CMDSZ;
host->max_channel = MAX_BUSES - 1;
host->max_lun = MAX_LUNS;
host->max_lun = ql2xmaxlun;
host->transportt = qla2xxx_transport_template;
sht->vendor_id = (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC);