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| author | Sreekanth Reddy <Sreekanth.Reddy@lsi.com> | 2013-08-14 18:23:20 +0530 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2013-09-03 07:27:55 -0700 |
| commit | 9c5000606d2a0dda8de892ac00b1bcf44b1834f6 (patch) | |
| tree | 0d890cc0f393a7adb02ca117f4808aacb32ff665 /tools | |
| parent | a9623da05f8a2930fadafd27fe621b16886b259d (diff) | |
[SCSI] mpt3sas: Added a driver module parameter max_msix_vectors
Added a driver module parameter max_msix_vectors. Using this module parameter
the maximum number of MSI-X vectors could be set.
The number of MSI-X vectors used would be the minimum of MSI-X vectors
supported by the HBA, the number of CPU cores and the value set to
max_msix_vectors module parameter.
The default value of this module parameter is set to 8. The default value of
this parameter is set to 8 inorder to reduce the amount of memory required for
Reply Descriptor Post queue. This is because with the higher MSI-X vectors,
some times kernel is not able to allocate the requested amount of memory and
crash is observed. To overcome this problem, the default value is set to 8.
Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'tools')
0 files changed, 0 insertions, 0 deletions