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[SCSI] mpt2sas: mpt2sas_base_get_sense_buffer_dma should be returning little endian

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cpu_to_le64 when calculating the physical dma address. This will properly
handle endianess on big endian systems.  The return value of this function
was changed from dma_addr_t to __le64. Remove the typecasting of u32 when
setting the SenseBufferLowAddress, since its already in __le32 format.

Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: Eric Moore <Eric.moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Kashyap, Desai
2009-09-23 17:34:13 +05:30
committed by James Bottomley
parent e4e7c7ed34
commit ec9472c74c
4 changed files with 7 additions and 6 deletions
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drivers/scsi/mpt2sas/mpt2sas_scsih.c
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@ -2939,7 +2939,7 @@ _scsih_qcmd(struct scsi_cmnd *scmd, void (*done)(struct scsi_cmnd *))
mpi_request->MsgFlags = MPI2_SCSIIO_MSGFLAGS_SYSTEM_SENSE_ADDR;
mpi_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
mpi_request->SenseBufferLowAddress =
(u32)mpt2sas_base_get_sense_buffer_dma(ioc, smid);
mpt2sas_base_get_sense_buffer_dma(ioc, smid);
mpi_request->SGLOffset0 = offsetof(Mpi2SCSIIORequest_t, SGL) / 4;
mpi_request->SGLFlags = cpu_to_le16(MPI2_SCSIIO_SGLFLAGS_TYPE_MPI +
MPI2_SCSIIO_SGLFLAGS_SYSTEM_ADDR);