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| author | Andrew Vasquez <andrew.vasquez@qlogic.com> | 2008-07-10 16:55:52 -0700 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-07-26 15:14:38 -0400 |
| commit | e5896bd5dcf71fa43ddcc545340b847c13d29c44 (patch) | |
| tree | fdbfec888dc878552e9f10d50b954b67bca8ce5b /drivers/scsi/qla2xxx/qla_os.c | |
| parent | 711c1d916be083a5bf4fbc8e66201e7e9f8b9334 (diff) | |
| download | blackbird-obmc-linux-e5896bd5dcf71fa43ddcc545340b847c13d29c44.tar.gz blackbird-obmc-linux-e5896bd5dcf71fa43ddcc545340b847c13d29c44.zip | |
[SCSI] qla2xxx: Allow the user the option of disabling iIDMA.
iIDMA support requires the driver issue several additional
fabric-managegment (FM) commands per port discovered during SNS
scanning -- GFPN (Get Fabric Port Name) and GPSC (Get Port Speed
Capabilities). It has been found during testing that some
switches do not respond as *well* as expected to these commands
(silence -- no ACC nor BS_RJT). So, to handle such conditions,
allow the user the ability to indirectly disable the FM commands
by disabling iIDMA with the ql2xiidmaenable module-parameter.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_os.c')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_os.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index e98d502d649e..9c3a57fa5060 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -86,6 +86,13 @@ MODULE_PARM_DESC(ql2xqfullrampup, "depth for a device after a queue-full condition has been " "detected. Default is 120 seconds."); +int ql2xiidmaenable=1; +module_param(ql2xiidmaenable, int, S_IRUGO|S_IRUSR); +MODULE_PARM_DESC(ql2xiidmaenable, + "Enables iIDMA settings " + "Default is 1 - perform iIDMA. 0 - no iIDMA."); + + /* * SCSI host template entry points */ |
