/*
* mrsas_update_load_balance_params: Update load balance parmas
* Inputs:
* sc - driver softc instance
* drv_map - driver RAID map
* lbInfo - Load balance info
*
* This function updates the load balance parameters for the LD config of a two
* drive optimal RAID-1.
*/
void
mrsas_update_load_balance_params(struct mrsas_softc *sc,
MR_DRV_RAID_MAP_ALL * drv_map, PLD_LOAD_BALANCE_INFO lbInfo)
{
int ldCount;
u_int16_t ld;
MR_LD_RAID *raid;
if (sc->lb_pending_cmds > 128 || sc->lb_pending_cmds < 1)
sc->lb_pending_cmds = LB_PENDING_CMDS_DEFAULT;
for (ldCount = 0; ldCount < MAX_LOGICAL_DRIVES_EXT; ldCount++) {
ld = MR_TargetIdToLdGet(ldCount, drv_map);
if (ld >= MAX_LOGICAL_DRIVES_EXT) {
lbInfo[ldCount].loadBalanceFlag = 0;
continue;
}
raid = MR_LdRaidGet(ld, drv_map);
if ((raid->level != 1) ||
(raid->ldState != MR_LD_STATE_OPTIMAL)) {
lbInfo[ldCount].loadBalanceFlag = 0;
continue;
}
lbInfo[ldCount].loadBalanceFlag = 1;
}
}
U16
MR_CheckDIF(U32 ldTgtId, MR_FW_RAID_MAP_ALL *map)
{
MR_LD_RAID *raid;
U32 ld;
ld = MR_TargetIdToLdGet(ldTgtId, map);
if (ld >= MAX_LOGICAL_DRIVES) {
return (FALSE);
}
raid = MR_LdRaidGet(ld, map);
return (raid->capability.ldPiMode == 0x8);
}
void
mr_update_load_balance_params(MR_FW_RAID_MAP_ALL *map,
PLD_LOAD_BALANCE_INFO lbInfo)
{
int ldCount;
U16 ld;
MR_LD_RAID *raid;
for (ldCount = 0; ldCount < MAX_LOGICAL_DRIVES; ldCount++) {
ld = MR_TargetIdToLdGet(ldCount, map);
if (ld >= MAX_LOGICAL_DRIVES) {
con_log(CL_ANN1,
(CE_NOTE, "mrsas: ld=%d Invalid ld \n", ld));
continue;
}
raid = MR_LdRaidGet(ld, map);
/* Two drive Optimal RAID 1 */
if ((raid->level == 1) && (raid->rowSize == 2) &&
(raid->spanDepth == 1) &&
raid->ldState == MR_LD_STATE_OPTIMAL) {
U32 pd, arRef;
lbInfo[ldCount].loadBalanceFlag = 1;
/* Get the array on which this span is present. */
arRef = MR_LdSpanArrayGet(ld, 0, map);
pd = MR_ArPdGet(arRef, 0, map); /* Get the Pd. */
/* Get dev handle from Pd. */
lbInfo[ldCount].raid1DevHandle[0] =
MR_PdDevHandleGet(pd, map);
pd = MR_ArPdGet(arRef, 1, map); /* Get the Pd. */
/* Get dev handle from Pd. */
lbInfo[ldCount].raid1DevHandle[1] =
MR_PdDevHandleGet(pd, map);
con_log(CL_ANN1, (CE_NOTE,
"mrsas: ld=%d load balancing enabled \n", ldCount));
} else {
lbInfo[ldCount].loadBalanceFlag = 0;
}
}
}
void
mr_update_load_balance_params(struct MR_FW_RAID_MAP_ALL *map,
struct LD_LOAD_BALANCE_INFO *lbInfo)
{
int ldCount;
u16 ld;
struct MR_LD_RAID *raid;
for (ldCount = 0; ldCount < MAX_LOGICAL_DRIVES; ldCount++) {
ld = MR_TargetIdToLdGet(ldCount, map);
if (ld >= MAX_LOGICAL_DRIVES) {
lbInfo[ldCount].loadBalanceFlag = 0;
continue;
}
raid = MR_LdRaidGet(ld, map);
/* Two drive Optimal RAID 1 */
if ((raid->level == 1) && (raid->rowSize == 2) &&
(raid->spanDepth == 1) && raid->ldState ==
MR_LD_STATE_OPTIMAL) {
u32 pd, arRef;
lbInfo[ldCount].loadBalanceFlag = 1;
/* Get the array on which this span is present */
arRef = MR_LdSpanArrayGet(ld, 0, map);
/* Get the Pd */
pd = MR_ArPdGet(arRef, 0, map);
/* Get dev handle from Pd */
lbInfo[ldCount].raid1DevHandle[0] =
MR_PdDevHandleGet(pd, map);
/* Get the Pd */
pd = MR_ArPdGet(arRef, 1, map);
/* Get the dev handle from Pd */
lbInfo[ldCount].raid1DevHandle[1] =
MR_PdDevHandleGet(pd, map);
} else
lbInfo[ldCount].loadBalanceFlag = 0;
}
}
/*
* This function will validate Map info data provided by FW
*/
u8 MR_ValidateMapInfo(struct megasas_instance *instance)
{
struct fusion_context *fusion = instance->ctrl_context;
struct MR_FW_RAID_MAP_ALL *map = fusion->ld_map[(instance->map_id & 1)];
struct LD_LOAD_BALANCE_INFO *lbInfo = fusion->load_balance_info;
PLD_SPAN_INFO ldSpanInfo = fusion->log_to_span;
struct MR_FW_RAID_MAP *pFwRaidMap = &map->raidMap;
struct MR_LD_RAID *raid;
int ldCount, num_lds;
u16 ld;
if (le32_to_cpu(pFwRaidMap->totalSize) !=
(sizeof(struct MR_FW_RAID_MAP) -sizeof(struct MR_LD_SPAN_MAP) +
(sizeof(struct MR_LD_SPAN_MAP) * le32_to_cpu(pFwRaidMap->ldCount)))) {
printk(KERN_ERR "megasas: map info structure size 0x%x is not matching with ld count\n",
(unsigned int)((sizeof(struct MR_FW_RAID_MAP) -
sizeof(struct MR_LD_SPAN_MAP)) +
(sizeof(struct MR_LD_SPAN_MAP) *
le32_to_cpu(pFwRaidMap->ldCount))));
printk(KERN_ERR "megasas: span map %x, pFwRaidMap->totalSize "
": %x\n", (unsigned int)sizeof(struct MR_LD_SPAN_MAP),
le32_to_cpu(pFwRaidMap->totalSize));
return 0;
}
if (instance->UnevenSpanSupport)
mr_update_span_set(map, ldSpanInfo);
mr_update_load_balance_params(map, lbInfo);
num_lds = le32_to_cpu(map->raidMap.ldCount);
/*Convert Raid capability values to CPU arch */
for (ldCount = 0; ldCount < num_lds; ldCount++) {
ld = MR_TargetIdToLdGet(ldCount, map);
raid = MR_LdRaidGet(ld, map);
le32_to_cpus((u32 *)&raid->capability);
}
return 1;
}
u_int32_t
MR_LdBlockSizeGet(u_int32_t ldTgtId, MR_DRV_RAID_MAP_ALL * map)
{
MR_LD_RAID *raid;
u_int32_t ld, ldBlockSize = MRSAS_SCSIBLOCKSIZE;
ld = MR_TargetIdToLdGet(ldTgtId, map);
/*
* Check if logical drive was removed.
*/
if (ld >= MAX_LOGICAL_DRIVES)
return ldBlockSize;
raid = MR_LdRaidGet(ld, map);
ldBlockSize = raid->logicalBlockLength;
if (!ldBlockSize)
ldBlockSize = MRSAS_SCSIBLOCKSIZE;
return ldBlockSize;
}
/*
******************************************************************************
*
* MR_BuildRaidContext function
*
* This function will initiate command processing. The start/end row and strip
* information is calculated then the lock is acquired.
* This function will return 0 if region lock was acquired OR return num strips
*/
u8
MR_BuildRaidContext(struct megasas_instance *instance,
struct IO_REQUEST_INFO *io_info,
struct RAID_CONTEXT *pRAID_Context,
struct MR_FW_RAID_MAP_ALL *map, u8 **raidLUN)
{
struct MR_LD_RAID *raid;
u32 ld, stripSize, stripe_mask;
u64 endLba, endStrip, endRow, start_row, start_strip;
u64 regStart;
u32 regSize;
u8 num_strips, numRows;
u16 ref_in_start_stripe, ref_in_end_stripe;
u64 ldStartBlock;
u32 numBlocks, ldTgtId;
u8 isRead;
u8 retval = 0;
u8 startlba_span = SPAN_INVALID;
u64 *pdBlock = &io_info->pdBlock;
ldStartBlock = io_info->ldStartBlock;
numBlocks = io_info->numBlocks;
ldTgtId = io_info->ldTgtId;
isRead = io_info->isRead;
io_info->IoforUnevenSpan = 0;
io_info->start_span = SPAN_INVALID;
ld = MR_TargetIdToLdGet(ldTgtId, map);
raid = MR_LdRaidGet(ld, map);
/*
* if rowDataSize @RAID map and spanRowDataSize @SPAN INFO are zero
* return FALSE
*/
if (raid->rowDataSize == 0) {
if (MR_LdSpanPtrGet(ld, 0, map)->spanRowDataSize == 0)
return FALSE;
else if (instance->UnevenSpanSupport) {
io_info->IoforUnevenSpan = 1;
} else {
dev_info(&instance->pdev->dev,
"raid->rowDataSize is 0, but has SPAN[0]"
"rowDataSize = 0x%0x,"
"but there is _NO_ UnevenSpanSupport\n",
MR_LdSpanPtrGet(ld, 0, map)->spanRowDataSize);
return FALSE;
}
}
stripSize = 1 << raid->stripeShift;
stripe_mask = stripSize-1;
/*
* calculate starting row and stripe, and number of strips and rows
*/
start_strip = ldStartBlock >> raid->stripeShift;
ref_in_start_stripe = (u16)(ldStartBlock & stripe_mask);
endLba = ldStartBlock + numBlocks - 1;
ref_in_end_stripe = (u16)(endLba & stripe_mask);
endStrip = endLba >> raid->stripeShift;
num_strips = (u8)(endStrip - start_strip + 1); /* End strip */
if (io_info->IoforUnevenSpan) {
start_row = get_row_from_strip(instance, ld, start_strip, map);
endRow = get_row_from_strip(instance, ld, endStrip, map);
if (start_row == -1ULL || endRow == -1ULL) {
dev_info(&instance->pdev->dev, "return from %s %d."
"Send IO w/o region lock.\n",
__func__, __LINE__);
return FALSE;
}
if (raid->spanDepth == 1) {
startlba_span = 0;
*pdBlock = start_row << raid->stripeShift;
} else
startlba_span = (u8)mr_spanset_get_span_block(instance,
ld, start_row, pdBlock, map);
if (startlba_span == SPAN_INVALID) {
dev_info(&instance->pdev->dev, "return from %s %d"
"for row 0x%llx,start strip %llx"
"endSrip %llx\n", __func__, __LINE__,
(unsigned long long)start_row,
(unsigned long long)start_strip,
(unsigned long long)endStrip);
return FALSE;
}
io_info->start_span = startlba_span;
io_info->start_row = start_row;
#if SPAN_DEBUG
dev_dbg(&instance->pdev->dev, "Check Span number from %s %d"
"for row 0x%llx, start strip 0x%llx end strip 0x%llx"
" span 0x%x\n", __func__, __LINE__,
(unsigned long long)start_row,
(unsigned long long)start_strip,
(unsigned long long)endStrip, startlba_span);
dev_dbg(&instance->pdev->dev, "start_row 0x%llx endRow 0x%llx"
"Start span 0x%x\n", (unsigned long long)start_row,
(unsigned long long)endRow, startlba_span);
#endif
} else {
start_row = mega_div64_32(start_strip, raid->rowDataSize);
endRow = mega_div64_32(endStrip, raid->rowDataSize);
}
numRows = (u8)(endRow - start_row + 1);
/*
* calculate region info.
*/
/* assume region is at the start of the first row */
regStart = start_row << raid->stripeShift;
/* assume this IO needs the full row - we'll adjust if not true */
regSize = stripSize;
/* Check if we can send this I/O via FastPath */
if (raid->capability.fpCapable) {
if (isRead)
io_info->fpOkForIo = (raid->capability.fpReadCapable &&
((num_strips == 1) ||
raid->capability.
fpReadAcrossStripe));
else
io_info->fpOkForIo = (raid->capability.fpWriteCapable &&
((num_strips == 1) ||
raid->capability.
fpWriteAcrossStripe));
} else
io_info->fpOkForIo = FALSE;
if (numRows == 1) {
/* single-strip IOs can always lock only the data needed */
if (num_strips == 1) {
regStart += ref_in_start_stripe;
regSize = numBlocks;
}
/* multi-strip IOs always need to full stripe locked */
} else if (io_info->IoforUnevenSpan == 0) {
/*
* For Even span region lock optimization.
* If the start strip is the last in the start row
*/
if (start_strip == (start_row + 1) * raid->rowDataSize - 1) {
regStart += ref_in_start_stripe;
/* initialize count to sectors from startref to end
of strip */
regSize = stripSize - ref_in_start_stripe;
}
/* add complete rows in the middle of the transfer */
if (numRows > 2)
regSize += (numRows-2) << raid->stripeShift;
/* if IO ends within first strip of last row*/
if (endStrip == endRow*raid->rowDataSize)
regSize += ref_in_end_stripe+1;
else
regSize += stripSize;
} else {
/*
* For Uneven span region lock optimization.
* If the start strip is the last in the start row
*/
if (start_strip == (get_strip_from_row(instance, ld, start_row, map) +
SPAN_ROW_DATA_SIZE(map, ld, startlba_span) - 1)) {
regStart += ref_in_start_stripe;
/* initialize count to sectors from
* startRef to end of strip
*/
regSize = stripSize - ref_in_start_stripe;
}
/* Add complete rows in the middle of the transfer*/
if (numRows > 2)
/* Add complete rows in the middle of the transfer*/
regSize += (numRows-2) << raid->stripeShift;
/* if IO ends within first strip of last row */
if (endStrip == get_strip_from_row(instance, ld, endRow, map))
regSize += ref_in_end_stripe + 1;
else
regSize += stripSize;
}
pRAID_Context->timeoutValue = cpu_to_le16(map->raidMap.fpPdIoTimeoutSec);
if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER) ||
(instance->pdev->device == PCI_DEVICE_ID_LSI_FURY))
pRAID_Context->regLockFlags = (isRead) ?
raid->regTypeReqOnRead : raid->regTypeReqOnWrite;
else
pRAID_Context->regLockFlags = (isRead) ?
REGION_TYPE_SHARED_READ : raid->regTypeReqOnWrite;
pRAID_Context->VirtualDiskTgtId = raid->targetId;
pRAID_Context->regLockRowLBA = cpu_to_le64(regStart);
pRAID_Context->regLockLength = cpu_to_le32(regSize);
pRAID_Context->configSeqNum = raid->seqNum;
/* save pointer to raid->LUN array */
*raidLUN = raid->LUN;
/*Get Phy Params only if FP capable, or else leave it to MR firmware
to do the calculation.*/
if (io_info->fpOkForIo) {
retval = io_info->IoforUnevenSpan ?
mr_spanset_get_phy_params(instance, ld,
start_strip, ref_in_start_stripe,
io_info, pRAID_Context, map) :
MR_GetPhyParams(instance, ld, start_strip,
ref_in_start_stripe, io_info,
pRAID_Context, map);
/* If IO on an invalid Pd, then FP is not possible.*/
if (io_info->devHandle == MR_PD_INVALID)
io_info->fpOkForIo = FALSE;
return retval;
} else if (isRead) {
uint stripIdx;
for (stripIdx = 0; stripIdx < num_strips; stripIdx++) {
retval = io_info->IoforUnevenSpan ?
mr_spanset_get_phy_params(instance, ld,
start_strip + stripIdx,
ref_in_start_stripe, io_info,
pRAID_Context, map) :
MR_GetPhyParams(instance, ld,
start_strip + stripIdx, ref_in_start_stripe,
io_info, pRAID_Context, map);
if (!retval)
return TRUE;
}
}
#if SPAN_DEBUG
/* Just for testing what arm we get for strip.*/
if (io_info->IoforUnevenSpan)
get_arm_from_strip(instance, ld, start_strip, map);
#endif
return TRUE;
}
static int getSpanInfo(struct MR_FW_RAID_MAP_ALL *map, PLD_SPAN_INFO ldSpanInfo)
{
u8 span;
u32 element;
struct MR_LD_RAID *raid;
LD_SPAN_SET *span_set;
struct MR_QUAD_ELEMENT *quad;
int ldCount;
u16 ld;
for (ldCount = 0; ldCount < MAX_LOGICAL_DRIVES; ldCount++) {
ld = MR_TargetIdToLdGet(ldCount, map);
if (ld >= MAX_LOGICAL_DRIVES)
continue;
raid = MR_LdRaidGet(ld, map);
dev_dbg(&instance->pdev->dev, "LD %x: span_depth=%x\n",
ld, raid->spanDepth);
for (span = 0; span < raid->spanDepth; span++)
dev_dbg(&instance->pdev->dev, "Span=%x,"
" number of quads=%x\n", span,
le32_to_cpu(map->raidMap.ldSpanMap[ld].spanBlock[span].
block_span_info.noElements));
for (element = 0; element < MAX_QUAD_DEPTH; element++) {
span_set = &(ldSpanInfo[ld].span_set[element]);
if (span_set->span_row_data_width == 0)
break;
dev_dbg(&instance->pdev->dev, "Span Set %x:"
"width=%x, diff=%x\n", element,
(unsigned int)span_set->span_row_data_width,
(unsigned int)span_set->diff);
dev_dbg(&instance->pdev->dev, "logical LBA"
"start=0x%08lx, end=0x%08lx\n",
(long unsigned int)span_set->log_start_lba,
(long unsigned int)span_set->log_end_lba);
dev_dbg(&instance->pdev->dev, "span row start=0x%08lx,"
" end=0x%08lx\n",
(long unsigned int)span_set->span_row_start,
(long unsigned int)span_set->span_row_end);
dev_dbg(&instance->pdev->dev, "data row start=0x%08lx,"
" end=0x%08lx\n",
(long unsigned int)span_set->data_row_start,
(long unsigned int)span_set->data_row_end);
dev_dbg(&instance->pdev->dev, "data strip start=0x%08lx,"
" end=0x%08lx\n",
(long unsigned int)span_set->data_strip_start,
(long unsigned int)span_set->data_strip_end);
for (span = 0; span < raid->spanDepth; span++) {
if (le32_to_cpu(map->raidMap.ldSpanMap[ld].spanBlock[span].
block_span_info.noElements) >=
element + 1) {
quad = &map->raidMap.ldSpanMap[ld].
spanBlock[span].block_span_info.
quad[element];
dev_dbg(&instance->pdev->dev, "Span=%x,"
"Quad=%x, diff=%x\n", span,
element, le32_to_cpu(quad->diff));
dev_dbg(&instance->pdev->dev,
"offset_in_span=0x%08lx\n",
(long unsigned int)le64_to_cpu(quad->offsetInSpan));
dev_dbg(&instance->pdev->dev,
"logical start=0x%08lx, end=0x%08lx\n",
(long unsigned int)le64_to_cpu(quad->logStart),
(long unsigned int)le64_to_cpu(quad->logEnd));
}
}
}
}
return 0;
}
/*
******************************************************************************
*
* This routine pepare spanset info from Valid Raid map and store it into
* local copy of ldSpanInfo per instance data structure.
*
* Inputs :
* map - LD map
* ldSpanInfo - ldSpanInfo per HBA instance
*
*/
void mr_update_span_set(struct MR_FW_RAID_MAP_ALL *map,
PLD_SPAN_INFO ldSpanInfo)
{
u8 span, count;
u32 element, span_row_width;
u64 span_row;
struct MR_LD_RAID *raid;
LD_SPAN_SET *span_set, *span_set_prev;
struct MR_QUAD_ELEMENT *quad;
int ldCount;
u16 ld;
for (ldCount = 0; ldCount < MAX_LOGICAL_DRIVES; ldCount++) {
ld = MR_TargetIdToLdGet(ldCount, map);
if (ld >= MAX_LOGICAL_DRIVES)
continue;
raid = MR_LdRaidGet(ld, map);
for (element = 0; element < MAX_QUAD_DEPTH; element++) {
for (span = 0; span < raid->spanDepth; span++) {
if (le32_to_cpu(map->raidMap.ldSpanMap[ld].spanBlock[span].
block_span_info.noElements) <
element + 1)
continue;
span_set = &(ldSpanInfo[ld].span_set[element]);
quad = &map->raidMap.ldSpanMap[ld].
spanBlock[span].block_span_info.
quad[element];
span_set->diff = le32_to_cpu(quad->diff);
for (count = 0, span_row_width = 0;
count < raid->spanDepth; count++) {
if (le32_to_cpu(map->raidMap.ldSpanMap[ld].
spanBlock[count].
block_span_info.
noElements) >= element + 1) {
span_set->strip_offset[count] =
span_row_width;
span_row_width +=
MR_LdSpanPtrGet
(ld, count, map)->spanRowDataSize;
printk(KERN_INFO "megasas:"
"span %x rowDataSize %x\n",
count, MR_LdSpanPtrGet
(ld, count, map)->spanRowDataSize);
}
}
span_set->span_row_data_width = span_row_width;
span_row = mega_div64_32(((le64_to_cpu(quad->logEnd) -
le64_to_cpu(quad->logStart)) + le32_to_cpu(quad->diff)),
le32_to_cpu(quad->diff));
if (element == 0) {
span_set->log_start_lba = 0;
span_set->log_end_lba =
((span_row << raid->stripeShift)
* span_row_width) - 1;
span_set->span_row_start = 0;
span_set->span_row_end = span_row - 1;
span_set->data_strip_start = 0;
span_set->data_strip_end =
(span_row * span_row_width) - 1;
span_set->data_row_start = 0;
span_set->data_row_end =
(span_row * le32_to_cpu(quad->diff)) - 1;
} else {
span_set_prev = &(ldSpanInfo[ld].
span_set[element - 1]);
span_set->log_start_lba =
span_set_prev->log_end_lba + 1;
span_set->log_end_lba =
span_set->log_start_lba +
((span_row << raid->stripeShift)
* span_row_width) - 1;
span_set->span_row_start =
span_set_prev->span_row_end + 1;
span_set->span_row_end =
span_set->span_row_start + span_row - 1;
span_set->data_strip_start =
span_set_prev->data_strip_end + 1;
span_set->data_strip_end =
span_set->data_strip_start +
(span_row * span_row_width) - 1;
span_set->data_row_start =
span_set_prev->data_row_end + 1;
span_set->data_row_end =
span_set->data_row_start +
(span_row * le32_to_cpu(quad->diff)) - 1;
}
break;
}
if (span == raid->spanDepth)
break;
}
}
#if SPAN_DEBUG
getSpanInfo(map, ldSpanInfo);
#endif
}
/**
* mrsas_setup_io: Set up data including Fast Path I/O
* input: Adapter instance soft state
* Pointer to command packet
* Pointer to CCB
*
* This function builds the DCDB inquiry command. It returns 0 if the
* command is built successfully, otherwise it returns a 1.
*/
int mrsas_setup_io(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd,
union ccb *ccb, u_int32_t device_id,
MRSAS_RAID_SCSI_IO_REQUEST *io_request)
{
struct ccb_hdr *ccb_h = &(ccb->ccb_h);
struct ccb_scsiio *csio = &(ccb->csio);
struct IO_REQUEST_INFO io_info;
MR_FW_RAID_MAP_ALL *map_ptr;
u_int8_t fp_possible;
u_int32_t start_lba_hi, start_lba_lo, ld_block_size;
u_int32_t datalength = 0;
start_lba_lo = 0;
start_lba_hi = 0;
fp_possible = 0;
/*
* READ_6 (0x08) or WRITE_6 (0x0A) cdb
*/
if (csio->cdb_len == 6) {
datalength = (u_int32_t)csio->cdb_io.cdb_bytes[4];
start_lba_lo = ((u_int32_t) csio->cdb_io.cdb_bytes[1] << 16) |
((u_int32_t) csio->cdb_io.cdb_bytes[2] << 8) |
(u_int32_t) csio->cdb_io.cdb_bytes[3];
start_lba_lo &= 0x1FFFFF;
}
/*
* READ_10 (0x28) or WRITE_6 (0x2A) cdb
*/
else if (csio->cdb_len == 10) {
datalength = (u_int32_t)csio->cdb_io.cdb_bytes[8] |
((u_int32_t)csio->cdb_io.cdb_bytes[7] << 8);
start_lba_lo = ((u_int32_t) csio->cdb_io.cdb_bytes[2] << 24) |
((u_int32_t) csio->cdb_io.cdb_bytes[3] << 16) |
(u_int32_t) csio->cdb_io.cdb_bytes[4] << 8 |
((u_int32_t) csio->cdb_io.cdb_bytes[5]);
}
/*
* READ_12 (0xA8) or WRITE_12 (0xAA) cdb
*/
else if (csio->cdb_len == 12) {
datalength = (u_int32_t)csio->cdb_io.cdb_bytes[6] << 24 |
((u_int32_t)csio->cdb_io.cdb_bytes[7] << 16) |
((u_int32_t)csio->cdb_io.cdb_bytes[8] << 8) |
((u_int32_t)csio->cdb_io.cdb_bytes[9]);
start_lba_lo = ((u_int32_t) csio->cdb_io.cdb_bytes[2] << 24) |
((u_int32_t) csio->cdb_io.cdb_bytes[3] << 16) |
(u_int32_t) csio->cdb_io.cdb_bytes[4] << 8 |
((u_int32_t) csio->cdb_io.cdb_bytes[5]);
}
/*
* READ_16 (0x88) or WRITE_16 (0xx8A) cdb
*/
else if (csio->cdb_len == 16) {
datalength = (u_int32_t)csio->cdb_io.cdb_bytes[10] << 24 |
((u_int32_t)csio->cdb_io.cdb_bytes[11] << 16) |
((u_int32_t)csio->cdb_io.cdb_bytes[12] << 8) |
((u_int32_t)csio->cdb_io.cdb_bytes[13]);
start_lba_lo = ((u_int32_t) csio->cdb_io.cdb_bytes[6] << 24) |
((u_int32_t) csio->cdb_io.cdb_bytes[7] << 16) |
(u_int32_t) csio->cdb_io.cdb_bytes[8] << 8 |
((u_int32_t) csio->cdb_io.cdb_bytes[9]);
start_lba_hi = ((u_int32_t) csio->cdb_io.cdb_bytes[2] << 24) |
((u_int32_t) csio->cdb_io.cdb_bytes[3] << 16) |
(u_int32_t) csio->cdb_io.cdb_bytes[4] << 8 |
((u_int32_t) csio->cdb_io.cdb_bytes[5]);
}
memset(&io_info, 0, sizeof(struct IO_REQUEST_INFO));
io_info.ldStartBlock = ((u_int64_t)start_lba_hi << 32) | start_lba_lo;
io_info.numBlocks = datalength;
io_info.ldTgtId = device_id;
switch (ccb_h->flags & CAM_DIR_MASK) {
case CAM_DIR_IN:
io_info.isRead = 1;
break;
case CAM_DIR_OUT:
io_info.isRead = 0;
break;
case CAM_DIR_NONE:
default:
mrsas_dprint(sc, MRSAS_TRACE, "From %s : DMA Flag is %d \n", __func__, ccb_h->flags & CAM_DIR_MASK);
break;
}
map_ptr = sc->raidmap_mem[(sc->map_id & 1)];
ld_block_size = MR_LdBlockSizeGet(device_id, map_ptr, sc);
if ((MR_TargetIdToLdGet(device_id, map_ptr) >= MAX_LOGICAL_DRIVES) ||
(!sc->fast_path_io)) {
io_request->RaidContext.regLockFlags = 0;
fp_possible = 0;
}
else
{
if (MR_BuildRaidContext(sc, &io_info, &io_request->RaidContext, map_ptr))
fp_possible = io_info.fpOkForIo;
}
if (fp_possible) {
mrsas_set_pd_lba(io_request, csio->cdb_len, &io_info, ccb, map_ptr,
start_lba_lo, ld_block_size);
io_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
cmd->request_desc->SCSIIO.RequestFlags =
(MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY
<< MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
if ((sc->device_id == MRSAS_INVADER) || (sc->device_id == MRSAS_FURY)) {
if (io_request->RaidContext.regLockFlags == REGION_TYPE_UNUSED)
cmd->request_desc->SCSIIO.RequestFlags = (MRSAS_REQ_DESCRIPT_FLAGS_NO_LOCK << MRSAS_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->RaidContext.regLockFlags |= (MR_RL_FLAGS_GRANT_DESTINATION_CUDA | MR_RL_FLAGS_SEQ_NUM_ENABLE);
}
if ((sc->load_balance_info[device_id].loadBalanceFlag) && (io_info.isRead)) {
io_info.devHandle = mrsas_get_updated_dev_handle(&sc->load_balance_info[device_id],
&io_info);
cmd->load_balance = MRSAS_LOAD_BALANCE_FLAG;
}
else
cmd->load_balance = 0;
cmd->request_desc->SCSIIO.DevHandle = io_info.devHandle;
io_request->DevHandle = io_info.devHandle;
}
else {
/* Not FP IO */
io_request->RaidContext.timeoutValue = map_ptr->raidMap.fpPdIoTimeoutSec;
cmd->request_desc->SCSIIO.RequestFlags =
(MRSAS_REQ_DESCRIPT_FLAGS_LD_IO << MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
if ((sc->device_id == MRSAS_INVADER) || (sc->device_id == MRSAS_FURY)) {
if (io_request->RaidContext.regLockFlags == REGION_TYPE_UNUSED)
cmd->request_desc->SCSIIO.RequestFlags = (MRSAS_REQ_DESCRIPT_FLAGS_NO_LOCK << MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
io_request->RaidContext.Type = MPI2_TYPE_CUDA;
io_request->RaidContext.regLockFlags |= (MR_RL_FLAGS_GRANT_DESTINATION_CPU0 | MR_RL_FLAGS_SEQ_NUM_ENABLE);
io_request->RaidContext.nseg = 0x1;
}
io_request->Function = MRSAS_MPI2_FUNCTION_LD_IO_REQUEST;
io_request->DevHandle = device_id;
}
return(0);
}
U8
MR_BuildRaidContext(struct mrsas_instance *instance,
struct IO_REQUEST_INFO *io_info, MPI2_SCSI_IO_VENDOR_UNIQUE *pRAID_Context,
MR_FW_RAID_MAP_ALL *map)
{
MR_LD_RAID *raid;
U32 ld, stripSize, stripe_mask;
U64 endLba, endStrip, endRow;
U64 start_row, start_strip;
REGION_KEY regStart;
REGION_LEN regSize;
U8 num_strips, numRows;
U16 ref_in_start_stripe;
U16 ref_in_end_stripe;
U64 ldStartBlock;
U32 numBlocks, ldTgtId;
U8 isRead;
U8 retval = 0;
ldStartBlock = io_info->ldStartBlock;
numBlocks = io_info->numBlocks;
ldTgtId = io_info->ldTgtId;
isRead = io_info->isRead;
if (map == NULL) {
io_info->fpOkForIo = FALSE;
return (FALSE);
}
ld = MR_TargetIdToLdGet(ldTgtId, map);
if (ld >= MAX_LOGICAL_DRIVES) {
io_info->fpOkForIo = FALSE;
return (FALSE);
}
raid = MR_LdRaidGet(ld, map);
stripSize = 1 << raid->stripeShift;
stripe_mask = stripSize-1;
/*
* calculate starting row and stripe, and number of strips and rows
*/
start_strip = ldStartBlock >> raid->stripeShift;
ref_in_start_stripe = (U16)(ldStartBlock & stripe_mask);
endLba = ldStartBlock + numBlocks - 1;
ref_in_end_stripe = (U16)(endLba & stripe_mask);
endStrip = endLba >> raid->stripeShift;
num_strips = (U8)(endStrip - start_strip + 1);
/* Check to make sure is not dividing by zero */
if (raid->rowDataSize == 0)
return (FALSE);
start_row = (start_strip / raid->rowDataSize);
endRow = (endStrip / raid->rowDataSize);
/* get the row count */
numRows = (U8)(endRow - start_row + 1);
/*
* calculate region info.
*/
regStart = start_row << raid->stripeShift;
regSize = stripSize;
/* Check if we can send this I/O via FastPath */
if (raid->capability.fpCapable) {
if (isRead) {
io_info->fpOkForIo = (raid->capability.fpReadCapable &&
((num_strips == 1) ||
raid->capability.fpReadAcrossStripe));
} else {
io_info->fpOkForIo =
(raid->capability.fpWriteCapable &&
((num_strips == 1) ||
raid->capability.fpWriteAcrossStripe));
}
} else
io_info->fpOkForIo = FALSE;
/*
* Check for DIF support
*/
if (!raid->capability.ldPiMode) {
io_info->ldPI = FALSE;
} else {
io_info->ldPI = TRUE;
}
if (numRows == 1) {
if (num_strips == 1) {
regStart += ref_in_start_stripe;
regSize = numBlocks;
}
} else {
if (start_strip == (start_row + 1) * raid->rowDataSize - 1) {
regStart += ref_in_start_stripe;
regSize = stripSize - ref_in_start_stripe;
}
if (numRows > 2) {
regSize += (numRows - 2) << raid->stripeShift;
}
if (endStrip == endRow * raid->rowDataSize) {
regSize += ref_in_end_stripe + 1;
} else {
regSize += stripSize;
}
}
pRAID_Context->timeoutValue = map->raidMap.fpPdIoTimeoutSec;
if ((instance->device_id == PCI_DEVICE_ID_LSI_INVADER) ||
(instance->device_id == PCI_DEVICE_ID_LSI_FURY)) {
pRAID_Context->regLockFlags = (isRead) ?
raid->regTypeReqOnRead : raid->regTypeReqOnWrite;
} else {
pRAID_Context->regLockFlags = (isRead) ?
REGION_TYPE_SHARED_READ : raid->regTypeReqOnWrite;
}
pRAID_Context->ldTargetId = raid->targetId;
pRAID_Context->regLockRowLBA = regStart;
pRAID_Context->regLockLength = regSize;
pRAID_Context->configSeqNum = raid->seqNum;
/*
* Get Phy Params only if FP capable,
* or else leave it to MR firmware to do the calculation.
*/
if (io_info->fpOkForIo) {
/* if fast path possible then get the physical parameters */
retval = MR_GetPhyParams(instance, ld, start_strip,
ref_in_start_stripe, &io_info->pdBlock,
&io_info->devHandle, pRAID_Context, map);
/* If IO on an invalid Pd, then FP is not possible. */
if (io_info->devHandle == MR_PD_INVALID)
io_info->fpOkForIo = FALSE;
return (retval);
} else if (isRead) {
uint_t stripIdx;
for (stripIdx = 0; stripIdx < num_strips; stripIdx++) {
if (!MR_GetPhyParams(instance, ld,
start_strip + stripIdx, ref_in_start_stripe,
&io_info->pdBlock, &io_info->devHandle,
pRAID_Context, map)) {
return (TRUE);
}
}
}
return (TRUE);
}
/*
* MR_BuildRaidContext: Set up Fast path RAID context
*
* This function will initiate command processing. The start/end row and strip
* information is calculated then the lock is acquired. This function will
* return 0 if region lock was acquired OR return num strips.
*/
u_int8_t
MR_BuildRaidContext(struct mrsas_softc *sc, struct IO_REQUEST_INFO *io_info,
RAID_CONTEXT * pRAID_Context, MR_DRV_RAID_MAP_ALL * map)
{
MR_LD_RAID *raid;
u_int32_t ld, stripSize, stripe_mask;
u_int64_t endLba, endStrip, endRow, start_row, start_strip;
REGION_KEY regStart;
REGION_LEN regSize;
u_int8_t num_strips, numRows;
u_int16_t ref_in_start_stripe, ref_in_end_stripe;
u_int64_t ldStartBlock;
u_int32_t numBlocks, ldTgtId;
u_int8_t isRead, stripIdx;
u_int8_t retval = 0;
u_int8_t startlba_span = SPAN_INVALID;
u_int64_t *pdBlock = &io_info->pdBlock;
int error_code = 0;
ldStartBlock = io_info->ldStartBlock;
numBlocks = io_info->numBlocks;
ldTgtId = io_info->ldTgtId;
isRead = io_info->isRead;
io_info->IoforUnevenSpan = 0;
io_info->start_span = SPAN_INVALID;
ld = MR_TargetIdToLdGet(ldTgtId, map);
raid = MR_LdRaidGet(ld, map);
if (raid->rowDataSize == 0) {
if (MR_LdSpanPtrGet(ld, 0, map)->spanRowDataSize == 0)
return FALSE;
else if (sc->UnevenSpanSupport) {
io_info->IoforUnevenSpan = 1;
} else {
mrsas_dprint(sc, MRSAS_PRL11, "LSI Debug: raid->rowDataSize is 0, but has SPAN[0] rowDataSize = 0x%0x,"
" but there is _NO_ UnevenSpanSupport\n",
MR_LdSpanPtrGet(ld, 0, map)->spanRowDataSize);
return FALSE;
}
}
stripSize = 1 << raid->stripeShift;
stripe_mask = stripSize - 1;
/*
* calculate starting row and stripe, and number of strips and rows
*/
start_strip = ldStartBlock >> raid->stripeShift;
ref_in_start_stripe = (u_int16_t)(ldStartBlock & stripe_mask);
endLba = ldStartBlock + numBlocks - 1;
ref_in_end_stripe = (u_int16_t)(endLba & stripe_mask);
endStrip = endLba >> raid->stripeShift;
num_strips = (u_int8_t)(endStrip - start_strip + 1); /* End strip */
if (io_info->IoforUnevenSpan) {
start_row = get_row_from_strip(sc, ld, start_strip, map);
endRow = get_row_from_strip(sc, ld, endStrip, map);
if (raid->spanDepth == 1) {
startlba_span = 0;
*pdBlock = start_row << raid->stripeShift;
} else {
startlba_span = (u_int8_t)mr_spanset_get_span_block(sc, ld, start_row,
pdBlock, map, &error_code);
if (error_code == 1) {
mrsas_dprint(sc, MRSAS_PRL11, "LSI Debug: return from %s %d. Send IO w/o region lock.\n",
__func__, __LINE__);
return FALSE;
}
}
if (startlba_span == SPAN_INVALID) {
mrsas_dprint(sc, MRSAS_PRL11, "LSI Debug: return from %s %d for row 0x%llx,"
"start strip %llx endSrip %llx\n", __func__,
__LINE__, (unsigned long long)start_row,
(unsigned long long)start_strip,
(unsigned long long)endStrip);
return FALSE;
}
io_info->start_span = startlba_span;
io_info->start_row = start_row;
mrsas_dprint(sc, MRSAS_PRL11, "LSI Debug: Check Span number from %s %d for row 0x%llx, "
" start strip 0x%llx endSrip 0x%llx span 0x%x\n",
__func__, __LINE__, (unsigned long long)start_row,
(unsigned long long)start_strip,
(unsigned long long)endStrip, startlba_span);
mrsas_dprint(sc, MRSAS_PRL11, "LSI Debug : 1. start_row 0x%llx endRow 0x%llx Start span 0x%x\n",
(unsigned long long)start_row, (unsigned long long)endRow, startlba_span);
} else {
start_row = mega_div64_32(start_strip, raid->rowDataSize);
endRow = mega_div64_32(endStrip, raid->rowDataSize);
}
numRows = (u_int8_t)(endRow - start_row + 1); /* get the row count */
/*
* Calculate region info. (Assume region at start of first row, and
* assume this IO needs the full row - will adjust if not true.)
*/
regStart = start_row << raid->stripeShift;
regSize = stripSize;
/* Check if we can send this I/O via FastPath */
if (raid->capability.fpCapable) {
if (isRead)
io_info->fpOkForIo = (raid->capability.fpReadCapable &&
((num_strips == 1) ||
raid->capability.fpReadAcrossStripe));
else
io_info->fpOkForIo = (raid->capability.fpWriteCapable &&
((num_strips == 1) ||
raid->capability.fpWriteAcrossStripe));
} else
io_info->fpOkForIo = FALSE;
if (numRows == 1) {
if (num_strips == 1) {
regStart += ref_in_start_stripe;
regSize = numBlocks;
}
} else if (io_info->IoforUnevenSpan == 0) {
/*
* For Even span region lock optimization. If the start strip
* is the last in the start row
*/
if (start_strip == (start_row + 1) * raid->rowDataSize - 1) {
regStart += ref_in_start_stripe;
/*
* initialize count to sectors from startRef to end
* of strip
*/
regSize = stripSize - ref_in_start_stripe;
}
/* add complete rows in the middle of the transfer */
if (numRows > 2)
regSize += (numRows - 2) << raid->stripeShift;
/* if IO ends within first strip of last row */
if (endStrip == endRow * raid->rowDataSize)
regSize += ref_in_end_stripe + 1;
else
regSize += stripSize;
} else {
if (start_strip == (get_strip_from_row(sc, ld, start_row, map) +
SPAN_ROW_DATA_SIZE(map, ld, startlba_span) - 1)) {
regStart += ref_in_start_stripe;
/*
* initialize count to sectors from startRef to end
* of strip
*/
regSize = stripSize - ref_in_start_stripe;
}
/* add complete rows in the middle of the transfer */
if (numRows > 2)
regSize += (numRows - 2) << raid->stripeShift;
/* if IO ends within first strip of last row */
if (endStrip == get_strip_from_row(sc, ld, endRow, map))
regSize += ref_in_end_stripe + 1;
else
regSize += stripSize;
}
pRAID_Context->timeoutValue = map->raidMap.fpPdIoTimeoutSec;
if ((sc->device_id == MRSAS_INVADER) || (sc->device_id == MRSAS_FURY))
pRAID_Context->regLockFlags = (isRead) ? raid->regTypeReqOnRead : raid->regTypeReqOnWrite;
else
pRAID_Context->regLockFlags = (isRead) ? REGION_TYPE_SHARED_READ : raid->regTypeReqOnWrite;
pRAID_Context->VirtualDiskTgtId = raid->targetId;
pRAID_Context->regLockRowLBA = regStart;
pRAID_Context->regLockLength = regSize;
pRAID_Context->configSeqNum = raid->seqNum;
/*
* Get Phy Params only if FP capable, or else leave it to MR firmware
* to do the calculation.
*/
if (io_info->fpOkForIo) {
retval = io_info->IoforUnevenSpan ?
mr_spanset_get_phy_params(sc, ld, start_strip,
ref_in_start_stripe, io_info, pRAID_Context, map) :
MR_GetPhyParams(sc, ld, start_strip,
ref_in_start_stripe, io_info, pRAID_Context, map);
/* If IO on an invalid Pd, then FP is not possible */
if (io_info->devHandle == MR_PD_INVALID)
io_info->fpOkForIo = FALSE;
return retval;
} else if (isRead) {
for (stripIdx = 0; stripIdx < num_strips; stripIdx++) {
retval = io_info->IoforUnevenSpan ?
mr_spanset_get_phy_params(sc, ld, start_strip + stripIdx,
ref_in_start_stripe, io_info, pRAID_Context, map) :
MR_GetPhyParams(sc, ld, start_strip + stripIdx,
ref_in_start_stripe, io_info, pRAID_Context, map);
if (!retval)
return TRUE;
}
}
#if SPAN_DEBUG
/* Just for testing what arm we get for strip. */
get_arm_from_strip(sc, ld, start_strip, map);
#endif
return TRUE;
}
static int
getSpanInfo(MR_DRV_RAID_MAP_ALL * map, PLD_SPAN_INFO ldSpanInfo)
{
u_int8_t span;
u_int32_t element;
MR_LD_RAID *raid;
LD_SPAN_SET *span_set;
MR_QUAD_ELEMENT *quad;
int ldCount;
u_int16_t ld;
for (ldCount = 0; ldCount < MAX_LOGICAL_DRIVES; ldCount++) {
ld = MR_TargetIdToLdGet(ldCount, map);
if (ld >= MAX_LOGICAL_DRIVES) {
continue;
}
raid = MR_LdRaidGet(ld, map);
printf("LD %x: span_depth=%x\n", ld, raid->spanDepth);
for (span = 0; span < raid->spanDepth; span++)
printf("Span=%x, number of quads=%x\n", span,
map->raidMap.ldSpanMap[ld].spanBlock[span].
block_span_info.noElements);
for (element = 0; element < MAX_QUAD_DEPTH; element++) {
span_set = &(ldSpanInfo[ld].span_set[element]);
if (span_set->span_row_data_width == 0)
break;
printf("Span Set %x: width=%x, diff=%x\n", element,
(unsigned int)span_set->span_row_data_width,
(unsigned int)span_set->diff);
printf("logical LBA start=0x%08lx, end=0x%08lx\n",
(long unsigned int)span_set->log_start_lba,
(long unsigned int)span_set->log_end_lba);
printf("span row start=0x%08lx, end=0x%08lx\n",
(long unsigned int)span_set->span_row_start,
(long unsigned int)span_set->span_row_end);
printf("data row start=0x%08lx, end=0x%08lx\n",
(long unsigned int)span_set->data_row_start,
(long unsigned int)span_set->data_row_end);
printf("data strip start=0x%08lx, end=0x%08lx\n",
(long unsigned int)span_set->data_strip_start,
(long unsigned int)span_set->data_strip_end);
for (span = 0; span < raid->spanDepth; span++) {
if (map->raidMap.ldSpanMap[ld].spanBlock[span].
block_span_info.noElements >= element + 1) {
quad = &map->raidMap.ldSpanMap[ld].
spanBlock[span].block_span_info.
quad[element];
printf("Span=%x, Quad=%x, diff=%x\n", span,
element, quad->diff);
printf("offset_in_span=0x%08lx\n",
(long unsigned int)quad->offsetInSpan);
printf("logical start=0x%08lx, end=0x%08lx\n",
(long unsigned int)quad->logStart,
(long unsigned int)quad->logEnd);
}
}
}
}
return 0;
}
/*
* mrsas_set_pd_lba: Sets PD LBA
* input: io_request pointer
* CDB length
* io_info pointer
* Pointer to CCB
* Local RAID map pointer
* Start block of IO Block Size
*
* Used to set the PD logical block address in CDB for FP IOs.
*/
void
mrsas_set_pd_lba(MRSAS_RAID_SCSI_IO_REQUEST * io_request, u_int8_t cdb_len,
struct IO_REQUEST_INFO *io_info, union ccb *ccb,
MR_DRV_RAID_MAP_ALL * local_map_ptr, u_int32_t ref_tag,
u_int32_t ld_block_size)
{
MR_LD_RAID *raid;
u_int32_t ld;
u_int64_t start_blk = io_info->pdBlock;
u_int8_t *cdb = io_request->CDB.CDB32;
u_int32_t num_blocks = io_info->numBlocks;
u_int8_t opcode = 0, flagvals = 0, groupnum = 0, control = 0;
struct ccb_hdr *ccb_h = &(ccb->ccb_h);
/* Check if T10 PI (DIF) is enabled for this LD */
ld = MR_TargetIdToLdGet(io_info->ldTgtId, local_map_ptr);
raid = MR_LdRaidGet(ld, local_map_ptr);
if (raid->capability.ldPiMode == MR_PROT_INFO_TYPE_CONTROLLER) {
memset(cdb, 0, sizeof(io_request->CDB.CDB32));
cdb[0] = MRSAS_SCSI_VARIABLE_LENGTH_CMD;
cdb[7] = MRSAS_SCSI_ADDL_CDB_LEN;
if (ccb_h->flags == CAM_DIR_OUT)
cdb[9] = MRSAS_SCSI_SERVICE_ACTION_READ32;
else
cdb[9] = MRSAS_SCSI_SERVICE_ACTION_WRITE32;
cdb[10] = MRSAS_RD_WR_PROTECT_CHECK_ALL;
/* LBA */
cdb[12] = (u_int8_t)((start_blk >> 56) & 0xff);
cdb[13] = (u_int8_t)((start_blk >> 48) & 0xff);
cdb[14] = (u_int8_t)((start_blk >> 40) & 0xff);
cdb[15] = (u_int8_t)((start_blk >> 32) & 0xff);
cdb[16] = (u_int8_t)((start_blk >> 24) & 0xff);
cdb[17] = (u_int8_t)((start_blk >> 16) & 0xff);
cdb[18] = (u_int8_t)((start_blk >> 8) & 0xff);
cdb[19] = (u_int8_t)(start_blk & 0xff);
/* Logical block reference tag */
io_request->CDB.EEDP32.PrimaryReferenceTag = swap32(ref_tag);
io_request->CDB.EEDP32.PrimaryApplicationTagMask = 0xffff;
io_request->IoFlags = 32; /* Specify 32-byte cdb */
/* Transfer length */
cdb[28] = (u_int8_t)((num_blocks >> 24) & 0xff);
cdb[29] = (u_int8_t)((num_blocks >> 16) & 0xff);
cdb[30] = (u_int8_t)((num_blocks >> 8) & 0xff);
cdb[31] = (u_int8_t)(num_blocks & 0xff);
/* set SCSI IO EEDP Flags */
if (ccb_h->flags == CAM_DIR_OUT) {
io_request->EEDPFlags =
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;
} else {
io_request->EEDPFlags =
MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
MPI2_SCSIIO_EEDPFLAGS_INSERT_OP;
}
io_request->Control |= (0x4 << 26);
io_request->EEDPBlockSize = ld_block_size;
} else {
/*
*
* This routine pepare spanset info from Valid Raid map and store it into local
* copy of ldSpanInfo per instance data structure.
*
* Inputs : LD map
* ldSpanInfo per HBA instance
*
*/
void
mr_update_span_set(MR_DRV_RAID_MAP_ALL * map, PLD_SPAN_INFO ldSpanInfo)
{
u_int8_t span, count;
u_int32_t element, span_row_width;
u_int64_t span_row;
MR_LD_RAID *raid;
LD_SPAN_SET *span_set, *span_set_prev;
MR_QUAD_ELEMENT *quad;
int ldCount;
u_int16_t ld;
for (ldCount = 0; ldCount < MAX_LOGICAL_DRIVES; ldCount++) {
ld = MR_TargetIdToLdGet(ldCount, map);
if (ld >= MAX_LOGICAL_DRIVES)
continue;
raid = MR_LdRaidGet(ld, map);
for (element = 0; element < MAX_QUAD_DEPTH; element++) {
for (span = 0; span < raid->spanDepth; span++) {
if (map->raidMap.ldSpanMap[ld].spanBlock[span].
block_span_info.noElements < element + 1)
continue;
/* TO-DO */
span_set = &(ldSpanInfo[ld].span_set[element]);
quad = &map->raidMap.ldSpanMap[ld].
spanBlock[span].block_span_info.quad[element];
span_set->diff = quad->diff;
for (count = 0, span_row_width = 0;
count < raid->spanDepth; count++) {
if (map->raidMap.ldSpanMap[ld].spanBlock[count].
block_span_info.noElements >= element + 1) {
span_set->strip_offset[count] = span_row_width;
span_row_width +=
MR_LdSpanPtrGet(ld, count, map)->spanRowDataSize;
#if SPAN_DEBUG
printf("LSI Debug span %x rowDataSize %x\n", count,
MR_LdSpanPtrGet(ld, count, map)->spanRowDataSize);
#endif
}
}
span_set->span_row_data_width = span_row_width;
span_row = mega_div64_32(((quad->logEnd -
quad->logStart) + quad->diff), quad->diff);
if (element == 0) {
span_set->log_start_lba = 0;
span_set->log_end_lba =
((span_row << raid->stripeShift) * span_row_width) - 1;
span_set->span_row_start = 0;
span_set->span_row_end = span_row - 1;
span_set->data_strip_start = 0;
span_set->data_strip_end = (span_row * span_row_width) - 1;
span_set->data_row_start = 0;
span_set->data_row_end = (span_row * quad->diff) - 1;
} else {
span_set_prev = &(ldSpanInfo[ld].span_set[element - 1]);
span_set->log_start_lba = span_set_prev->log_end_lba + 1;
span_set->log_end_lba = span_set->log_start_lba +
((span_row << raid->stripeShift) * span_row_width) - 1;
span_set->span_row_start = span_set_prev->span_row_end + 1;
span_set->span_row_end =
span_set->span_row_start + span_row - 1;
span_set->data_strip_start =
span_set_prev->data_strip_end + 1;
span_set->data_strip_end = span_set->data_strip_start +
(span_row * span_row_width) - 1;
span_set->data_row_start = span_set_prev->data_row_end + 1;
span_set->data_row_end = span_set->data_row_start +
(span_row * quad->diff) - 1;
}
break;
}
if (span == raid->spanDepth)
break; /* no quads remain */
}
}
#if SPAN_DEBUG
getSpanInfo(map, ldSpanInfo); /* to get span set info */
#endif
}
