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author | James Smart <James.Smart@Emulex.Com> | 2007-06-17 19:56:38 -0500 |
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committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2007-06-17 22:27:39 -0500 |
commit | 92d7f7b0cde3ad2260e7462b40867b57efd49851 (patch) | |
tree | fadb1d8f1a817c2f85937b5e9c3b830bdecb5555 /drivers/scsi/lpfc/lpfc_vport.h | |
parent | ed957684294618602b48f1950b0c9bbcb036583f (diff) | |
download | op-kernel-dev-92d7f7b0cde3ad2260e7462b40867b57efd49851.zip op-kernel-dev-92d7f7b0cde3ad2260e7462b40867b57efd49851.tar.gz |
[SCSI] lpfc: NPIV: add NPIV support on top of SLI-3
NPIV support is added to the driver. It utilizes the interfaces of
the fc transport for the creation and deletion of vports. Within the
driver, a new Scsi_Host is created for each NPIV instance, and is
paired with a new instance of a FC port. This allows N FC Port
elements to share a single Adapter.
Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_vport.h')
-rw-r--r-- | drivers/scsi/lpfc/lpfc_vport.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_vport.h b/drivers/scsi/lpfc/lpfc_vport.h new file mode 100644 index 0000000..f223550 --- /dev/null +++ b/drivers/scsi/lpfc/lpfc_vport.h @@ -0,0 +1,113 @@ +/******************************************************************* + * This file is part of the Emulex Linux Device Driver for * + * Fibre Channel Host Bus Adapters. * + * Copyright (C) 2004-2006 Emulex. All rights reserved. * + * EMULEX and SLI are trademarks of Emulex. * + * www.emulex.com * + * Portions Copyright (C) 2004-2005 Christoph Hellwig * + * * + * This program is free software; you can redistribute it and/or * + * modify it under the terms of version 2 of the GNU General * + * Public License as published by the Free Software Foundation. * + * This program is distributed in the hope that it will be useful. * + * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * + * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * + * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * + * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * + * TO BE LEGALLY INVALID. See the GNU General Public License for * + * more details, a copy of which can be found in the file COPYING * + * included with this package. * + *******************************************************************/ + +#ifndef _H_LPFC_VPORT +#define _H_LPFC_VPORT + +/* API version values (each will be an individual bit) */ +#define VPORT_API_VERSION_1 0x01 + +/* Values returned via lpfc_vport_getinfo() */ +struct vport_info { + + uint32_t api_versions; + uint8_t linktype; +#define VPORT_TYPE_PHYSICAL 0 +#define VPORT_TYPE_VIRTUAL 1 + + uint8_t state; +#define VPORT_STATE_OFFLINE 0 +#define VPORT_STATE_ACTIVE 1 +#define VPORT_STATE_FAILED 2 + + uint8_t fail_reason; + uint8_t prev_fail_reason; +#define VPORT_FAIL_UNKNOWN 0 +#define VPORT_FAIL_LINKDOWN 1 +#define VPORT_FAIL_FAB_UNSUPPORTED 2 +#define VPORT_FAIL_FAB_NORESOURCES 3 +#define VPORT_FAIL_FAB_LOGOUT 4 +#define VPORT_FAIL_ADAP_NORESOURCES 5 + + uint8_t node_name[8]; /* WWNN */ + uint8_t port_name[8]; /* WWPN */ + + struct Scsi_Host *shost; + +/* Following values are valid only on physical links */ + uint32_t vports_max; + uint32_t vports_inuse; + uint32_t rpi_max; + uint32_t rpi_inuse; +#define VPORT_CNT_INVALID 0xFFFFFFFF +}; + +/* data used in link creation */ +struct vport_data { + uint32_t api_version; + + uint32_t options; +#define VPORT_OPT_AUTORETRY 0x01 + + uint8_t node_name[8]; /* WWNN */ + uint8_t port_name[8]; /* WWPN */ + +/* + * Upon successful creation, vport_shost will point to the new Scsi_Host + * structure for the new virtual link. + */ + struct Scsi_Host *vport_shost; +}; + +/* API function return codes */ +#define VPORT_OK 0 +#define VPORT_ERROR -1 +#define VPORT_INVAL -2 +#define VPORT_NOMEM -3 +#define VPORT_NORESOURCES -4 + +int lpfc_vport_create(struct fc_vport *, bool); +int lpfc_vport_delete(struct fc_vport *); +int lpfc_vport_getinfo(struct Scsi_Host *, struct vport_info *); +int lpfc_vport_tgt_remove(struct Scsi_Host *, uint, uint); + +/* + * queuecommand VPORT-specific return codes. Specified in the host byte code. + * Returned when the virtual link has failed or is not active. + */ +#define DID_VPORT_ERROR 0x0f + +#define VPORT_INFO 0x1 +#define VPORT_CREATE 0x2 +#define VPORT_DELETE 0x4 + +struct vport_cmd_tag { + uint32_t cmd; + struct vport_data cdata; + struct vport_info cinfo; + void *vport; + int vport_num; +}; + +void lpfc_vport_set_state(struct lpfc_vport *vport, + enum fc_vport_state new_state); + +#endif /* H_LPFC_VPORT */ |