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authorShivasharan S <shivasharan.srikanteshwara@broadcom.com>2017-08-23 04:46:55 -0700
committerMartin K. Petersen <martin.petersen@oracle.com>2017-08-24 22:29:10 -0400
commited2983f458bed9dc827ec60c8486253b1669bb52 (patch)
treee5e61eec19615f1211e30af42f0e9357ff9998b7
parent44ed33e6c5d58342a9bc86172ad121c0687bb890 (diff)
downloadop-kernel-dev-ed2983f458bed9dc827ec60c8486253b1669bb52.zip
op-kernel-dev-ed2983f458bed9dc827ec60c8486253b1669bb52.tar.gz
scsi: megaraid_sas: mismatch of allocated MFI frame size and length exposed in MFI MPT pass through command
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>
-rw-r--r--drivers/scsi/megaraid/megaraid_sas_fusion.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index 6b9db73..84cd4f8 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -3289,7 +3289,7 @@ 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);
}
/**
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