From: Sreekanth Reddy Date: Wed, 14 Aug 2013 12:53:20 +0000 (+0530) Subject: [SCSI] mpt3sas: Added a driver module parameter max_msix_vectors X-Git-Tag: v3.12-rc1~180^2~48 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9c5000606d2a0dda8de892ac00b1bcf44b1834f6;p=pandora-kernel.git [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 Signed-off-by: James Bottomley --- Reading git-diff-tree failed