Messages in this thread | | | Date | Wed, 9 Mar 2005 22:03:35 +0000 | From | 'Christoph Hellwig' <> | Subject | Re: [ANNOUNCE][PATCH 2.6.11 2/3] megaraid_sas: Announcing new mod ule for LSI Logic's SAS based MegaRAID controllers |
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On Wed, Mar 09, 2005 at 09:43:47AM -0500, Bagalkote, Sreenivas wrote: > During the module load time, I allocate 32 bit or 64 bit SGLs based on > whether I can receive 64 bit DMA addresses or not. If size of dma_addr_t > is 4, then I allocate only 32 bit SGLs. During the run time, I prepare > 32/64 bit SGLs based on this variable. And since this is compile time > system-wide property, I kept it as driver global.
Even for kernels with a 64bit dma_addr_t you can get 32bit dma addresses only. As a start check whether the pci_set_dma_mask for the 64bit mask failed - in that case you can always use 32bit SGLs. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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