diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2011-07-30 04:16:45 +0400 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2011-08-24 06:50:27 +0400 |
| commit | ee33e2b771f9e9e4aaba2bb2ace7b727fe451a8b (patch) | |
| tree | d7aeaef179c98df3135d4ad5a872643d226b691c /drivers/scsi/isci/unsolicited_frame_control.c | |
| parent | 1a878284473284f9577d44babf16d87152a05c33 (diff) | |
| download | linux-ee33e2b771f9e9e4aaba2bb2ace7b727fe451a8b.tar.xz | |
[SCSI] isci: fix 32-bit operation when CONFIG_HIGHMEM64G=n
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>
Diffstat (limited to 'drivers/scsi/isci/unsolicited_frame_control.c')
| -rw-r--r-- | drivers/scsi/isci/unsolicited_frame_control.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/isci/unsolicited_frame_control.c b/drivers/scsi/isci/unsolicited_frame_control.c index e9e1e2abacb9..16f88ab939c8 100644 --- a/drivers/scsi/isci/unsolicited_frame_control.c +++ b/drivers/scsi/isci/unsolicited_frame_control.c @@ -72,7 +72,7 @@ int sci_unsolicited_frame_control_construct(struct isci_host *ihost) */ buf_len = SCU_MAX_UNSOLICITED_FRAMES * SCU_UNSOLICITED_FRAME_BUFFER_SIZE; header_len = SCU_MAX_UNSOLICITED_FRAMES * sizeof(struct scu_unsolicited_frame_header); - size = buf_len + header_len + SCU_MAX_UNSOLICITED_FRAMES * sizeof(dma_addr_t); + size = buf_len + header_len + SCU_MAX_UNSOLICITED_FRAMES * sizeof(uf_control->address_table.array[0]); /* * The Unsolicited Frame buffers are set at the start of the UF |