Re: [PATCH v2 01/15] megaraid_sas: mismatch of allocated MFI frame size and length exposed in MFI MPT pass through command

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On 5.7.2017 14:00, Shivasharan S wrote:
>  Fix - 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@xxxxxxxxxxxx>
> Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@xxxxxxxxxxxx>
> Reviewed-by: Hannes Reinecke <hare@xxxxxxxx>

Reviewed-by: Tomas Henzl <thenzl@xxxxxxxxxx>

tomash

> ---
>  drivers/scsi/megaraid/megaraid_sas_fusion.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
> index f990ab4d..f717fbc 100644
> --- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
> +++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
> @@ -3283,7 +3283,7 @@ irqreturn_t megasas_isr_fusion(int irq, void *devp)
>  	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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