scsi: megaraid_sas: mismatch of allocated MFI frame size and length exposed in MFI...

Driver allocated 256 byte MFI frames bytes but while sending MFI frame
(embedded inside chain frame of MPT frame) to firmware, driver sets the
length as 4k. This results in DMA read error messages during boot.

Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Cc: stable@vger.kernel.org
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Orabug: 27625001
Signed-off-by: Jack Vogel <jack.vogel@oracle.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index 1172924866c2576f7540f8ee5a45d45e3a46c209..41c522c84441555d61e356e0103ba8d0cf5478fd 100644 (file)
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -3290,7 +3290,7 @@ build_mpt_mfi_pass_thru(struct megasas_instance *instance,
        mpi25_ieee_chain->Flags = IEEE_SGE_FLAGS_CHAIN_ELEMENT |
                MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR;
 
-       mpi25_ieee_chain->Length = cpu_to_le32(instance->max_chain_frame_sz);
+       mpi25_ieee_chain->Length = cpu_to_le32(instance->mfi_frame_size);
 }
 
 /**