[SCSI] mpt2sas: mpt2sas_base_get_sense_buffer_dma should be returning little endian
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>
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@ -1328,12 +1328,13 @@ mpt2sas_base_get_sense_buffer(struct MPT2SAS_ADAPTER *ioc, u16 smid)
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* @ioc: per adapter object
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* @smid: system request message index
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*
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* Returns phys pointer to sense buffer.
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* Returns phys pointer to the low 32bit address of the sense buffer.
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*/
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dma_addr_t
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__le32
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mpt2sas_base_get_sense_buffer_dma(struct MPT2SAS_ADAPTER *ioc, u16 smid)
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{
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return ioc->sense_dma + ((smid - 1) * SCSI_SENSE_BUFFERSIZE);
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return cpu_to_le32(ioc->sense_dma +
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((smid - 1) * SCSI_SENSE_BUFFERSIZE));
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}
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/**
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@ -771,7 +771,7 @@ int mpt2sas_base_hard_reset_handler(struct MPT2SAS_ADAPTER *ioc, int sleep_flag,
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void *mpt2sas_base_get_msg_frame(struct MPT2SAS_ADAPTER *ioc, u16 smid);
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void *mpt2sas_base_get_sense_buffer(struct MPT2SAS_ADAPTER *ioc, u16 smid);
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void mpt2sas_base_build_zero_len_sge(struct MPT2SAS_ADAPTER *ioc, void *paddr);
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dma_addr_t mpt2sas_base_get_sense_buffer_dma(struct MPT2SAS_ADAPTER *ioc,
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__le32 mpt2sas_base_get_sense_buffer_dma(struct MPT2SAS_ADAPTER *ioc,
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u16 smid);
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/* hi-priority queue */
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@ -740,7 +740,7 @@ _ctl_do_mpt_command(struct MPT2SAS_ADAPTER *ioc,
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Mpi2SCSIIORequest_t *scsiio_request =
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(Mpi2SCSIIORequest_t *)mpi_request;
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scsiio_request->SenseBufferLowAddress =
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(u32)mpt2sas_base_get_sense_buffer_dma(ioc, smid);
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mpt2sas_base_get_sense_buffer_dma(ioc, smid);
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priv_sense = mpt2sas_base_get_sense_buffer(ioc, smid);
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memset(priv_sense, 0, SCSI_SENSE_BUFFERSIZE);
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mpt2sas_base_put_smid_scsi_io(ioc, smid,
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@ -2939,7 +2939,7 @@ _scsih_qcmd(struct scsi_cmnd *scmd, void (*done)(struct scsi_cmnd *))
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mpi_request->MsgFlags = MPI2_SCSIIO_MSGFLAGS_SYSTEM_SENSE_ADDR;
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mpi_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
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mpi_request->SenseBufferLowAddress =
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(u32)mpt2sas_base_get_sense_buffer_dma(ioc, smid);
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mpt2sas_base_get_sense_buffer_dma(ioc, smid);
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mpi_request->SGLOffset0 = offsetof(Mpi2SCSIIORequest_t, SGL) / 4;
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mpi_request->SGLFlags = cpu_to_le16(MPI2_SCSIIO_SGLFLAGS_TYPE_MPI +
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MPI2_SCSIIO_SGLFLAGS_SYSTEM_ADDR);
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