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[SCSI] megaraid_sas: Load io_request DataLength in bytes
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Load io_request->DataLength in bytes for newer firmware that supports high
availability.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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adam radford authored and James Bottomley committed Oct 9, 2012
1 parent 079eadd commit f9eff81
Showing 1 changed file with 7 additions and 9 deletions.
16 changes: 7 additions & 9 deletions drivers/scsi/megaraid/megaraid_sas_fusion.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1184,8 +1184,6 @@ megasas_set_pd_lba(struct MPI2_RAID_SCSI_IO_REQUEST *io_request, u8 cdb_len,
io_request->CDB.EEDP32.PrimaryReferenceTag =
cpu_to_be32(ref_tag);
io_request->CDB.EEDP32.PrimaryApplicationTagMask = 0xffff;

io_request->DataLength = num_blocks * 512;
io_request->IoFlags = 32; /* Specify 32-byte cdb */

/* Transfer length */
Expand Down Expand Up @@ -1329,7 +1327,7 @@ megasas_build_ldio_fusion(struct megasas_instance *instance,
struct megasas_cmd_fusion *cmd)
{
u8 fp_possible;
u32 start_lba_lo, start_lba_hi, device_id;
u32 start_lba_lo, start_lba_hi, device_id, datalength = 0;
struct MPI2_RAID_SCSI_IO_REQUEST *io_request;
union MEGASAS_REQUEST_DESCRIPTOR_UNION *req_desc;
struct IO_REQUEST_INFO io_info;
Expand All @@ -1355,7 +1353,7 @@ megasas_build_ldio_fusion(struct megasas_instance *instance,
* 6-byte READ(0x08) or WRITE(0x0A) cdb
*/
if (scp->cmd_len == 6) {
io_request->DataLength = (u32) scp->cmnd[4];
datalength = (u32) scp->cmnd[4];
start_lba_lo = ((u32) scp->cmnd[1] << 16) |
((u32) scp->cmnd[2] << 8) | (u32) scp->cmnd[3];

Expand All @@ -1366,7 +1364,7 @@ megasas_build_ldio_fusion(struct megasas_instance *instance,
* 10-byte READ(0x28) or WRITE(0x2A) cdb
*/
else if (scp->cmd_len == 10) {
io_request->DataLength = (u32) scp->cmnd[8] |
datalength = (u32) scp->cmnd[8] |
((u32) scp->cmnd[7] << 8);
start_lba_lo = ((u32) scp->cmnd[2] << 24) |
((u32) scp->cmnd[3] << 16) |
Expand All @@ -1377,7 +1375,7 @@ megasas_build_ldio_fusion(struct megasas_instance *instance,
* 12-byte READ(0xA8) or WRITE(0xAA) cdb
*/
else if (scp->cmd_len == 12) {
io_request->DataLength = ((u32) scp->cmnd[6] << 24) |
datalength = ((u32) scp->cmnd[6] << 24) |
((u32) scp->cmnd[7] << 16) |
((u32) scp->cmnd[8] << 8) | (u32) scp->cmnd[9];
start_lba_lo = ((u32) scp->cmnd[2] << 24) |
Expand All @@ -1389,7 +1387,7 @@ megasas_build_ldio_fusion(struct megasas_instance *instance,
* 16-byte READ(0x88) or WRITE(0x8A) cdb
*/
else if (scp->cmd_len == 16) {
io_request->DataLength = ((u32) scp->cmnd[10] << 24) |
datalength = ((u32) scp->cmnd[10] << 24) |
((u32) scp->cmnd[11] << 16) |
((u32) scp->cmnd[12] << 8) | (u32) scp->cmnd[13];
start_lba_lo = ((u32) scp->cmnd[6] << 24) |
Expand All @@ -1403,8 +1401,9 @@ megasas_build_ldio_fusion(struct megasas_instance *instance,

memset(&io_info, 0, sizeof(struct IO_REQUEST_INFO));
io_info.ldStartBlock = ((u64)start_lba_hi << 32) | start_lba_lo;
io_info.numBlocks = io_request->DataLength;
io_info.numBlocks = datalength;
io_info.ldTgtId = device_id;
io_request->DataLength = scsi_bufflen(scp);

if (scp->sc_data_direction == PCI_DMA_FROMDEVICE)
io_info.isRead = 1;
Expand All @@ -1431,7 +1430,6 @@ megasas_build_ldio_fusion(struct megasas_instance *instance,
if (fp_possible) {
megasas_set_pd_lba(io_request, scp->cmd_len, &io_info, scp,
local_map_ptr, start_lba_lo);
io_request->DataLength = scsi_bufflen(scp);
io_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
cmd->request_desc->SCSIIO.RequestFlags =
(MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY
Expand Down

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