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| author | Dan Williams <dan.j.williams@intel.com> | 2011-07-29 17:16:45 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-10-03 11:40:23 -0700 |
| commit | f3919ef81224e33c867882453cd33036ac0ed7ee (patch) | |
| tree | 98e9fdf95bf64a9ce33d4128721c96cd57aa5b68 | |
| parent | 60c48a44d308985ccc6335d4591d75acc7e1da77 (diff) | |
| download | kernel_samsung_crespo-f3919ef81224e33c867882453cd33036ac0ed7ee.zip kernel_samsung_crespo-f3919ef81224e33c867882453cd33036ac0ed7ee.tar.gz kernel_samsung_crespo-f3919ef81224e33c867882453cd33036ac0ed7ee.tar.bz2 | |
isci: fix 32-bit operation when CONFIG_HIGHMEM64G=n
commit ee33e2b771f9e9e4aaba2bb2ace7b727fe451a8b upstream.
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.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/scsi/isci/unsolicited_frame_control.c | 2 | ||||
| -rw-r--r-- | drivers/scsi/isci/unsolicited_frame_control.h | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/scsi/isci/unsolicited_frame_control.c b/drivers/scsi/isci/unsolicited_frame_control.c index e9e1e2a..16f88ab 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 diff --git a/drivers/scsi/isci/unsolicited_frame_control.h b/drivers/scsi/isci/unsolicited_frame_control.h index 31cb950..75d8966 100644 --- a/drivers/scsi/isci/unsolicited_frame_control.h +++ b/drivers/scsi/isci/unsolicited_frame_control.h @@ -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 |