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| author | Brian King <brking@linux.vnet.ibm.com> | 2009-05-29 01:17:29 +0400 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2009-06-08 22:07:44 +0400 |
| commit | 79111d0899a122fa3cf0a2921292c3e6a25452d0 (patch) | |
| tree | 73300ac26b25f515e2c04aa04f50cc9664886441 /drivers/scsi/ibmvscsi/ibmvfc.h | |
| parent | 43c8da907ccc656935d1085701f4db83385d8a59 (diff) | |
| download | linux-79111d0899a122fa3cf0a2921292c3e6a25452d0.tar.xz | |
[SCSI] ibmvfc: Add support for NPIV Logout
This patch adds support for a new command supported by the Virtual I/O
Server, NPIV Logout. The command will abort all outstanding commands
and log out of the fabric. Currently, the only way to do this is
by breaking the CRQ, which can take a fairly long time when lots of
commands are outstanding. The NPIV Logout commands provides a mechanism
to accomplish virtually the same function, but is much faster.
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/ibmvscsi/ibmvfc.h')
| -rw-r--r-- | drivers/scsi/ibmvscsi/ibmvfc.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/scsi/ibmvscsi/ibmvfc.h b/drivers/scsi/ibmvscsi/ibmvfc.h index 3a6a725fd396..6adaad80565d 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.h +++ b/drivers/scsi/ibmvscsi/ibmvfc.h @@ -57,9 +57,10 @@ * Ensure we have resources for ERP and initialization: * 1 for ERP * 1 for initialization + * 1 for NPIV Logout * 2 for each discovery thread */ -#define IBMVFC_NUM_INTERNAL_REQ (1 + 1 + (disc_threads * 2)) +#define IBMVFC_NUM_INTERNAL_REQ (1 + 1 + 1 + (disc_threads * 2)) #define IBMVFC_MAD_SUCCESS 0x00 #define IBMVFC_MAD_NOT_SUPPORTED 0xF1 @@ -127,6 +128,7 @@ enum ibmvfc_mad_types { IBMVFC_IMPLICIT_LOGOUT = 0x0040, IBMVFC_PASSTHRU = 0x0200, IBMVFC_TMF_MAD = 0x0100, + IBMVFC_NPIV_LOGOUT = 0x0800, }; struct ibmvfc_mad_common { @@ -143,6 +145,10 @@ struct ibmvfc_npiv_login_mad { struct srp_direct_buf buffer; }__attribute__((packed, aligned (8))); +struct ibmvfc_npiv_logout_mad { + struct ibmvfc_mad_common common; +}__attribute__((packed, aligned (8))); + #define IBMVFC_MAX_NAME 256 struct ibmvfc_npiv_login { @@ -561,6 +567,7 @@ struct ibmvfc_async_crq_queue { union ibmvfc_iu { struct ibmvfc_mad_common mad_common; struct ibmvfc_npiv_login_mad npiv_login; + struct ibmvfc_npiv_logout_mad npiv_logout; struct ibmvfc_discover_targets discover_targets; struct ibmvfc_port_login plogi; struct ibmvfc_process_login prli; @@ -627,6 +634,8 @@ struct ibmvfc_event_pool { enum ibmvfc_host_action { IBMVFC_HOST_ACTION_NONE = 0, + IBMVFC_HOST_ACTION_LOGO, + IBMVFC_HOST_ACTION_LOGO_WAIT, IBMVFC_HOST_ACTION_INIT, IBMVFC_HOST_ACTION_INIT_WAIT, IBMVFC_HOST_ACTION_QUERY, @@ -682,6 +691,7 @@ struct ibmvfc_host { int reinit; int delay_init; int scan_complete; + int logged_in; int events_to_log; #define IBMVFC_AE_LINKUP 0x0001 #define IBMVFC_AE_LINKDOWN 0x0002 |