On Thu, May 26, 2016 at 03:46:58PM +0530, Chaitra Basappa wrote: > Johannes, > Could you please let us know which application is being used for firmware > upgrade ?? Whether it is your own customized application or LSI provided > applications? > > Also our application use single contiguous memory buffer for ioctls and > hence mpt3sas driver is using single contiguous memory for the DMA > operation. > > If we use GFP_KERNEL flag then it may be possible that ioctl thread may > hang/wait for long, if it doesn't get required memory from the system. > > We may need to test below patch thoroughly , as I don’t see allocation of > several non-contiguous chunks of memory in below patch..., > Any results? What about my quest whether we can allocate the buffers by vmalloc() and then map it in a SG list? Thanks, Johannes -- Johannes Thumshirn Storage jthumshirn@xxxxxxx +49 911 74053 689 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: Felix Imendörffer, Jane Smithard, Graham Norton HRB 21284 (AG Nürnberg) Key fingerprint = EC38 9CAB C2C4 F25D 8600 D0D0 0393 969D 2D76 0850 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
