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| author | Shivasharan S <shivasharan.srikanteshwara@broadcom.com> | 2017-10-19 02:49:01 -0700 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-10-25 04:55:29 -0400 |
| commit | b9637d14dc00d91cef0068cde1f9a8959b051028 (patch) | |
| tree | e029c06e890fd56731873ef87d9bd4844daa04c7 /drivers/scsi/megaraid/megaraid_sas_fusion.h | |
| parent | b99fc20281968b24ef8e3ab56cc5ba78c14b2a24 (diff) | |
| download | linux-b9637d14dc00d91cef0068cde1f9a8959b051028.tar.gz linux-b9637d14dc00d91cef0068cde1f9a8959b051028.tar.bz2 linux-b9637d14dc00d91cef0068cde1f9a8959b051028.zip | |
scsi: megaraid_sas: Resize MFA frame used for IOC INIT to 4k
Older firmware version unconditionally pulls 4k frame for IOC INIT MFA
frame. But driver allocates 1k or 4k max_chain_frame_sz based on FW
capability. During boot time, this results in DMA read errors.
Workaround fix in driver by allocating separate ioc_init frame of 4k
size to support older firmware.
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Cc: stable@vger.kernel.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/megaraid/megaraid_sas_fusion.h')
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas_fusion.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.h b/drivers/scsi/megaraid/megaraid_sas_fusion.h index 5b3f1dba1ab2..549f86b2e871 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fusion.h +++ b/drivers/scsi/megaraid/megaraid_sas_fusion.h @@ -103,6 +103,7 @@ enum MR_RAID_FLAGS_IO_SUB_TYPE { #define THRESHOLD_REPLY_COUNT 50 #define RAID_1_PEER_CMDS 2 #define JBOD_MAPS_COUNT 2 +#define IOC_INIT_FRAME_SIZE 4096 /* * Raid Context structure which describes MegaRAID specific IO Parameters @@ -1317,6 +1318,7 @@ struct fusion_context { struct LD_STREAM_DETECT **stream_detect_by_ld; dma_addr_t ioc_init_request_phys; struct MPI2_IOC_INIT_REQUEST *ioc_init_request; + struct megasas_cmd *ioc_init_cmd; }; |