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[SCSI] isci: fix 32-bit operation when CONFIG_HIGHMEM64G=n

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The unsolicited frame control infrastructure requires a table of dma
addresses for the hardware to lookup the frame buffer location by an
index.  The hardware expects the elements of this table to be 64-bit
quantities, so we cannot reference these elements as dma_addr_t.  All
unsolicited frame protocols are affected, particularly SATA-PIO and SMP
which prevented direct-attached SATA drives and expander-attached drives
to not be discovered.

Cc: <stable@kernel.org>
Reported-by: Jacek Danecki <jacek.danecki@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Dan Williams
2011-07-29 17:16:45 -07:00
committed by James Bottomley
parent 1a87828447
commit ee33e2b771
2 changed files with 2 additions and 2 deletions
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2
drivers/scsi/isci/unsolicited_frame_control.h
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@@ -214,7 +214,7 @@ struct sci_uf_address_table_array {
* starting address of the UF address table.
* 64-bit pointers are required by the hardware.
*/
dma_addr_t *array;
u64 *array;
/**
* This field specifies the physical address location for the UF