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| author | Sumit.Saxena@avagotech.com <Sumit.Saxena@avagotech.com> | 2015-01-05 20:05:58 +0530 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2015-01-09 15:44:33 +0100 |
| commit | 200aed582d6170a2687cd69095469b663f69f16f (patch) | |
| tree | 77d99d82baccd1556702df6d4612d03099fc6f97 /drivers/scsi/megaraid/megaraid_sas_fusion.c | |
| parent | 470613b462a767aa8cca1e590928fcbc55bf39e5 (diff) | |
| download | linux-stable-200aed582d6170a2687cd69095469b663f69f16f.tar.gz linux-stable-200aed582d6170a2687cd69095469b663f69f16f.tar.bz2 linux-stable-200aed582d6170a2687cd69095469b663f69f16f.zip | |
megaraid_sas: endianness related bug fixes and code optimization
This patch addresses below issues:
1) Few endianness bug fixes.
2) Break the iteration after (MAX_LOGICAL_DRIVES_EXT - 1)),
instead of MAX_LOGICAL_DRIVES_EXT.
3) Optimization in MFI INIT frame before firing.
4) MFI IO frame should be 256bytes aligned. Code is optimized to reduce
the size of frame for fusion adapters and make the MFI frame size
calculation a bit transparent and readable.
Cc: <stable@vger.kernel.org>
Signed-off-by: Kashyap Desai <kashyap.desai@avagotech.com>
Signed-off-by: Sumit Saxena <sumit.saxena@avagotech.com>
Signed-off-by: Chaitra Basappa <chaitra.basappa@avagotech.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/scsi/megaraid/megaraid_sas_fusion.c')
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas_fusion.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c index 71557f64bb5e..b5362c196000 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fusion.c +++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c @@ -698,12 +698,11 @@ megasas_ioc_init_fusion(struct megasas_instance *instance) cpu_to_le32(lower_32_bits(ioc_init_handle)); init_frame->data_xfer_len = cpu_to_le32(sizeof(struct MPI2_IOC_INIT_REQUEST)); - req_desc.Words = 0; + req_desc.u.low = cpu_to_le32(lower_32_bits(cmd->frame_phys_addr)); + req_desc.u.high = cpu_to_le32(upper_32_bits(cmd->frame_phys_addr)); req_desc.MFAIo.RequestFlags = (MEGASAS_REQ_DESCRIPT_FLAGS_MFA << - MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT); - cpu_to_le32s((u32 *)&req_desc.MFAIo); - req_desc.Words |= cpu_to_le64(cmd->frame_phys_addr); + MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT); /* * disable the intr before firing the init frame |