RE: [ANNOUNCE][PATCH 2.6.11 2/3] megaraid_sas: Announcing new mod ule for LSI Logic's SAS based MegaRAID controllers

[Bagalkote, Sreenivas]

>
>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.
>

Please help me understand: If dma_addr_t is 64 bit, I will get 64bit 
addresses in scatterlist regardless the outcome of pci_set_dma_mask, 
won't I? These addresses may have valid or null high addresses. My idea
was to have 32(64) bit SGLs for 32(64) bit dma_addr_t.

Thanks,
Sreenivas
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