[SCSI] megaraid_sas: addded support for big endian architecture
This patch will add big endian architecture support to megaraid_sas
driver. The support added is for LSI MegaRAID all generation controllers-
(3Gb/s, 6Gb/s and 12 Gb/s controllers).
We have done basic sanity test @ppc64 arch and @x86_64. Additional
testing/observations are welcome.
[jejb: fix up rejections]
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index 10b19a8..f655592 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -615,23 +615,20 @@
IOCInitMessage->Function = MPI2_FUNCTION_IOC_INIT;
IOCInitMessage->WhoInit = MPI2_WHOINIT_HOST_DRIVER;
- IOCInitMessage->MsgVersion = MPI2_VERSION;
- IOCInitMessage->HeaderVersion = MPI2_HEADER_VERSION;
- IOCInitMessage->SystemRequestFrameSize =
- MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE / 4;
+ IOCInitMessage->MsgVersion = cpu_to_le16(MPI2_VERSION);
+ IOCInitMessage->HeaderVersion = cpu_to_le16(MPI2_HEADER_VERSION);
+ IOCInitMessage->SystemRequestFrameSize = cpu_to_le16(MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE / 4);
- IOCInitMessage->ReplyDescriptorPostQueueDepth = fusion->reply_q_depth;
- IOCInitMessage->ReplyDescriptorPostQueueAddress =
- fusion->reply_frames_desc_phys;
- IOCInitMessage->SystemRequestFrameBaseAddress =
- fusion->io_request_frames_phys;
+ IOCInitMessage->ReplyDescriptorPostQueueDepth = cpu_to_le16(fusion->reply_q_depth);
+ IOCInitMessage->ReplyDescriptorPostQueueAddress = cpu_to_le64(fusion->reply_frames_desc_phys);
+ IOCInitMessage->SystemRequestFrameBaseAddress = cpu_to_le64(fusion->io_request_frames_phys);
IOCInitMessage->HostMSIxVectors = instance->msix_vectors;
init_frame = (struct megasas_init_frame *)cmd->frame;
memset(init_frame, 0, MEGAMFI_FRAME_SIZE);
frame_hdr = &cmd->frame->hdr;
frame_hdr->cmd_status = 0xFF;
- frame_hdr->flags |= MFI_FRAME_DONT_POST_IN_REPLY_QUEUE;
+ frame_hdr->flags |= cpu_to_le16(MFI_FRAME_DONT_POST_IN_REPLY_QUEUE);
init_frame->cmd = MFI_CMD_INIT;
init_frame->cmd_status = 0xFF;
@@ -644,18 +641,21 @@
/* driver supports HA / Remote LUN over Fast Path interface */
init_frame->driver_operations.mfi_capabilities.support_fp_remote_lun
= 1;
+ /* Convert capability to LE32 */
+ cpu_to_le32s((u32 *)&init_frame->driver_operations.mfi_capabilities);
-
- init_frame->queue_info_new_phys_addr_lo = ioc_init_handle;
- init_frame->data_xfer_len = sizeof(struct MPI2_IOC_INIT_REQUEST);
+ init_frame->queue_info_new_phys_addr_lo = cpu_to_le32((u32)ioc_init_handle);
+ init_frame->data_xfer_len = cpu_to_le32(sizeof(struct MPI2_IOC_INIT_REQUEST));
req_desc =
(union MEGASAS_REQUEST_DESCRIPTOR_UNION *)fusion->req_frames_desc;
- req_desc->Words = cmd->frame_phys_addr;
+ req_desc->Words = 0;
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);
/*
* disable the intr before firing the init frame
@@ -746,13 +746,13 @@
dcmd->cmd = MFI_CMD_DCMD;
dcmd->cmd_status = 0xFF;
dcmd->sge_count = 1;
- dcmd->flags = MFI_FRAME_DIR_READ;
+ dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_READ);
dcmd->timeout = 0;
dcmd->pad_0 = 0;
- dcmd->data_xfer_len = size_map_info;
- dcmd->opcode = MR_DCMD_LD_MAP_GET_INFO;
- dcmd->sgl.sge32[0].phys_addr = ci_h;
- dcmd->sgl.sge32[0].length = size_map_info;
+ dcmd->data_xfer_len = cpu_to_le32(size_map_info);
+ dcmd->opcode = cpu_to_le32(MR_DCMD_LD_MAP_GET_INFO);
+ dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(ci_h);
+ dcmd->sgl.sge32[0].length = cpu_to_le32(size_map_info);
if (!megasas_issue_polled(instance, cmd))
ret = 0;
@@ -821,7 +821,7 @@
map = fusion->ld_map[instance->map_id & 1];
- num_lds = map->raidMap.ldCount;
+ num_lds = le32_to_cpu(map->raidMap.ldCount);
dcmd = &cmd->frame->dcmd;
@@ -849,15 +849,15 @@
dcmd->cmd = MFI_CMD_DCMD;
dcmd->cmd_status = 0xFF;
dcmd->sge_count = 1;
- dcmd->flags = MFI_FRAME_DIR_WRITE;
+ dcmd->flags = cpu_to_le16(MFI_FRAME_DIR_WRITE);
dcmd->timeout = 0;
dcmd->pad_0 = 0;
- dcmd->data_xfer_len = size_map_info;
+ dcmd->data_xfer_len = cpu_to_le32(size_map_info);
dcmd->mbox.b[0] = num_lds;
dcmd->mbox.b[1] = MEGASAS_DCMD_MBOX_PEND_FLAG;
- dcmd->opcode = MR_DCMD_LD_MAP_GET_INFO;
- dcmd->sgl.sge32[0].phys_addr = ci_h;
- dcmd->sgl.sge32[0].length = size_map_info;
+ dcmd->opcode = cpu_to_le32(MR_DCMD_LD_MAP_GET_INFO);
+ dcmd->sgl.sge32[0].phys_addr = cpu_to_le32(ci_h);
+ dcmd->sgl.sge32[0].length = cpu_to_le32(size_map_info);
instance->map_update_cmd = cmd;
@@ -1060,9 +1060,8 @@
spin_lock_irqsave(&instance->hba_lock, flags);
- writel(req_desc_lo,
- &(regs)->inbound_low_queue_port);
- writel(req_desc_hi, &(regs)->inbound_high_queue_port);
+ writel(le32_to_cpu(req_desc_lo), &(regs)->inbound_low_queue_port);
+ writel(le32_to_cpu(req_desc_hi), &(regs)->inbound_high_queue_port);
spin_unlock_irqrestore(&instance->hba_lock, flags);
}
@@ -1150,8 +1149,8 @@
return sge_count;
scsi_for_each_sg(scp, os_sgl, sge_count, i) {
- sgl_ptr->Length = sg_dma_len(os_sgl);
- sgl_ptr->Address = sg_dma_address(os_sgl);
+ sgl_ptr->Length = cpu_to_le32(sg_dma_len(os_sgl));
+ sgl_ptr->Address = cpu_to_le64(sg_dma_address(os_sgl));
sgl_ptr->Flags = 0;
if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) ||
(instance->pdev->device == PCI_DEVICE_ID_LSI_FURY)) {
@@ -1170,9 +1169,9 @@
PCI_DEVICE_ID_LSI_INVADER) ||
(instance->pdev->device ==
PCI_DEVICE_ID_LSI_FURY)) {
- if ((cmd->io_request->IoFlags &
- MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH) !=
- MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH)
+ if ((le16_to_cpu(cmd->io_request->IoFlags) &
+ MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH) !=
+ MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH)
cmd->io_request->ChainOffset =
fusion->
chain_offset_io_request;
@@ -1194,9 +1193,8 @@
sg_chain->Flags =
(IEEE_SGE_FLAGS_CHAIN_ELEMENT |
MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR);
- sg_chain->Length = (sizeof(union MPI2_SGE_IO_UNION)
- *(sge_count - sg_processed));
- sg_chain->Address = cmd->sg_frame_phys_addr;
+ sg_chain->Length = cpu_to_le32((sizeof(union MPI2_SGE_IO_UNION) * (sge_count - sg_processed)));
+ sg_chain->Address = cpu_to_le64(cmd->sg_frame_phys_addr);
sgl_ptr =
(struct MPI25_IEEE_SGE_CHAIN64 *)cmd->sg_frame;
@@ -1254,7 +1252,7 @@
io_request->CDB.EEDP32.PrimaryReferenceTag =
cpu_to_be32(ref_tag);
io_request->CDB.EEDP32.PrimaryApplicationTagMask = 0xffff;
- io_request->IoFlags = 32; /* Specify 32-byte cdb */
+ io_request->IoFlags = cpu_to_le16(32); /* Specify 32-byte cdb */
/* Transfer length */
cdb[28] = (u8)((num_blocks >> 24) & 0xff);
@@ -1264,19 +1262,19 @@
/* set SCSI IO EEDPFlags */
if (scp->sc_data_direction == PCI_DMA_FROMDEVICE) {
- io_request->EEDPFlags =
+ io_request->EEDPFlags = cpu_to_le16(
MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG |
MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP |
MPI2_SCSIIO_EEDPFLAGS_CHECK_APPTAG |
- MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
+ MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD);
} else {
- io_request->EEDPFlags =
+ io_request->EEDPFlags = cpu_to_le16(
MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
- MPI2_SCSIIO_EEDPFLAGS_INSERT_OP;
+ MPI2_SCSIIO_EEDPFLAGS_INSERT_OP);
}
- io_request->Control |= (0x4 << 26);
- io_request->EEDPBlockSize = scp->device->sector_size;
+ io_request->Control |= cpu_to_le32((0x4 << 26));
+ io_request->EEDPBlockSize = cpu_to_le32(scp->device->sector_size);
} else {
/* Some drives don't support 16/12 byte CDB's, convert to 10 */
if (((cdb_len == 12) || (cdb_len == 16)) &&
@@ -1304,7 +1302,7 @@
cdb[8] = (u8)(num_blocks & 0xff);
cdb[7] = (u8)((num_blocks >> 8) & 0xff);
- io_request->IoFlags = 10; /* Specify 10-byte cdb */
+ io_request->IoFlags = cpu_to_le16(10); /* Specify 10-byte cdb */
cdb_len = 10;
} else if ((cdb_len < 16) && (start_blk > 0xffffffff)) {
/* Convert to 16 byte CDB for large LBA's */
@@ -1342,7 +1340,7 @@
cdb[11] = (u8)((num_blocks >> 16) & 0xff);
cdb[10] = (u8)((num_blocks >> 24) & 0xff);
- io_request->IoFlags = 16; /* Specify 16-byte cdb */
+ io_request->IoFlags = cpu_to_le16(16); /* Specify 16-byte cdb */
cdb_len = 16;
}
@@ -1410,7 +1408,7 @@
fusion = instance->ctrl_context;
io_request = cmd->io_request;
- io_request->RaidContext.VirtualDiskTgtId = device_id;
+ io_request->RaidContext.VirtualDiskTgtId = cpu_to_le16(device_id);
io_request->RaidContext.status = 0;
io_request->RaidContext.exStatus = 0;
@@ -1474,7 +1472,7 @@
io_info.ldStartBlock = ((u64)start_lba_hi << 32) | start_lba_lo;
io_info.numBlocks = datalength;
io_info.ldTgtId = device_id;
- io_request->DataLength = scsi_bufflen(scp);
+ io_request->DataLength = cpu_to_le32(scsi_bufflen(scp));
if (scp->sc_data_direction == PCI_DMA_FROMDEVICE)
io_info.isRead = 1;
@@ -1514,8 +1512,7 @@
MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
io_request->RaidContext.Type = MPI2_TYPE_CUDA;
io_request->RaidContext.nseg = 0x1;
- io_request->IoFlags |=
- MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH;
+ io_request->IoFlags |= cpu_to_le16(MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH);
io_request->RaidContext.regLockFlags |=
(MR_RL_FLAGS_GRANT_DESTINATION_CUDA |
MR_RL_FLAGS_SEQ_NUM_ENABLE);
@@ -1535,7 +1532,7 @@
memcpy(io_request->LUN, raidLUN, 8);
} else {
io_request->RaidContext.timeoutValue =
- local_map_ptr->raidMap.fpPdIoTimeoutSec;
+ cpu_to_le16(local_map_ptr->raidMap.fpPdIoTimeoutSec);
cmd->request_desc->SCSIIO.RequestFlags =
(MEGASAS_REQ_DESCRIPT_FLAGS_LD_IO
<< MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
@@ -1553,7 +1550,7 @@
io_request->RaidContext.nseg = 0x1;
}
io_request->Function = MEGASAS_MPI2_FUNCTION_LD_IO_REQUEST;
- io_request->DevHandle = device_id;
+ io_request->DevHandle = cpu_to_le16(device_id);
} /* Not FP */
}
@@ -1587,7 +1584,7 @@
+scmd->device->id;
local_map_ptr = fusion->ld_map[(instance->map_id & 1)];
- io_request->DataLength = scsi_bufflen(scmd);
+ io_request->DataLength = cpu_to_le32(scsi_bufflen(scmd));
/* Check if this is a system PD I/O */
@@ -1647,7 +1644,7 @@
/* set RAID context values */
pRAID_Context->regLockFlags = REGION_TYPE_SHARED_READ;
pRAID_Context->timeoutValue = raid->fpIoTimeoutForLd;
- pRAID_Context->VirtualDiskTgtId = device_id;
+ pRAID_Context->VirtualDiskTgtId = cpu_to_le16(device_id);
pRAID_Context->regLockRowLBA = 0;
pRAID_Context->regLockLength = 0;
pRAID_Context->configSeqNum = raid->seqNum;
@@ -1676,12 +1673,12 @@
NonFastPath:
io_request->Function = MEGASAS_MPI2_FUNCTION_LD_IO_REQUEST;
- io_request->DevHandle = device_id;
+ io_request->DevHandle = cpu_to_le16(device_id);
cmd->request_desc->SCSIIO.RequestFlags =
(MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO <<
MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
}
- io_request->RaidContext.VirtualDiskTgtId = device_id;
+ io_request->RaidContext.VirtualDiskTgtId = cpu_to_le16(device_id);
io_request->LUN[1] = scmd->device->lun;
}
@@ -1721,7 +1718,7 @@
* Just the CDB length,rest of the Flags are zero
* This will be modified for FP in build_ldio_fusion
*/
- io_request->IoFlags = scp->cmd_len;
+ io_request->IoFlags = cpu_to_le16(scp->cmd_len);
if (megasas_is_ldio(scp))
megasas_build_ldio_fusion(instance, scp, cmd);
@@ -1746,17 +1743,17 @@
io_request->RaidContext.numSGE = sge_count;
- io_request->SGLFlags = MPI2_SGE_FLAGS_64_BIT_ADDRESSING;
+ io_request->SGLFlags = cpu_to_le16(MPI2_SGE_FLAGS_64_BIT_ADDRESSING);
if (scp->sc_data_direction == PCI_DMA_TODEVICE)
- io_request->Control |= MPI2_SCSIIO_CONTROL_WRITE;
+ io_request->Control |= cpu_to_le32(MPI2_SCSIIO_CONTROL_WRITE);
else if (scp->sc_data_direction == PCI_DMA_FROMDEVICE)
- io_request->Control |= MPI2_SCSIIO_CONTROL_READ;
+ io_request->Control |= cpu_to_le32(MPI2_SCSIIO_CONTROL_READ);
io_request->SGLOffset0 =
offsetof(struct MPI2_RAID_SCSI_IO_REQUEST, SGL) / 4;
- io_request->SenseBufferLowAddress = cmd->sense_phys_addr;
+ io_request->SenseBufferLowAddress = cpu_to_le32(cmd->sense_phys_addr);
io_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
cmd->scmd = scp;
@@ -1821,7 +1818,7 @@
}
req_desc = cmd->request_desc;
- req_desc->SCSIIO.SMID = index;
+ req_desc->SCSIIO.SMID = cpu_to_le16(index);
if (cmd->io_request->ChainOffset != 0 &&
cmd->io_request->ChainOffset != 0xF)
@@ -1883,7 +1880,7 @@
num_completed = 0;
while ((d_val.u.low != UINT_MAX) && (d_val.u.high != UINT_MAX)) {
- smid = reply_desc->SMID;
+ smid = le16_to_cpu(reply_desc->SMID);
cmd_fusion = fusion->cmd_list[smid - 1];
@@ -2101,12 +2098,12 @@
SGL) / 4;
io_req->ChainOffset = fusion->chain_offset_mfi_pthru;
- mpi25_ieee_chain->Address = mfi_cmd->frame_phys_addr;
+ mpi25_ieee_chain->Address = cpu_to_le64(mfi_cmd->frame_phys_addr);
mpi25_ieee_chain->Flags = IEEE_SGE_FLAGS_CHAIN_ELEMENT |
MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR;
- mpi25_ieee_chain->Length = MEGASAS_MAX_SZ_CHAIN_FRAME;
+ mpi25_ieee_chain->Length = cpu_to_le32(MEGASAS_MAX_SZ_CHAIN_FRAME);
return 0;
}
@@ -2139,7 +2136,7 @@
req_desc->SCSIIO.RequestFlags = (MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO <<
MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
- req_desc->SCSIIO.SMID = index;
+ req_desc->SCSIIO.SMID = cpu_to_le16(index);
return req_desc;
}