/*
******************************************************************************
*
* This routine calculates the arm, span and block for the specified stripe and
* reference in stripe.
*
* Inputs :
*
* ld - Logical drive number
* stripRow - Stripe number
* stripRef - Reference in stripe
*
* Outputs :
*
* span - Span number
* block - Absolute Block number in the physical disk
*/
u8 MR_GetPhyParams(struct megasas_instance *instance, u32 ld, u64 stripRow,
u16 stripRef, struct IO_REQUEST_INFO *io_info,
struct RAID_CONTEXT *pRAID_Context,
struct MR_FW_RAID_MAP_ALL *map)
{
struct MR_LD_RAID *raid = MR_LdRaidGet(ld, map);
u32 pd, arRef;
u8 physArm, span;
u64 row;
u8 retval = TRUE;
u8 do_invader = 0;
u64 *pdBlock = &io_info->pdBlock;
u16 *pDevHandle = &io_info->devHandle;
if ((instance->pdev->device == PCI_DEVICE_ID_LSI_INVADER ||
instance->pdev->device == PCI_DEVICE_ID_LSI_FURY))
do_invader = 1;
row = mega_div64_32(stripRow, raid->rowDataSize);
if (raid->level == 6) {
/* logical arm within row */
u32 logArm = mega_mod64(stripRow, raid->rowDataSize);
u32 rowMod, armQ, arm;
if (raid->rowSize == 0)
return FALSE;
/* get logical row mod */
rowMod = mega_mod64(row, raid->rowSize);
armQ = raid->rowSize-1-rowMod; /* index of Q drive */
arm = armQ+1+logArm; /* data always logically follows Q */
if (arm >= raid->rowSize) /* handle wrap condition */
arm -= raid->rowSize;
physArm = (u8)arm;
} else {
if (raid->modFactor == 0)
return FALSE;
physArm = MR_LdDataArmGet(ld, mega_mod64(stripRow,
raid->modFactor),
map);
}
if (raid->spanDepth == 1) {
span = 0;
*pdBlock = row << raid->stripeShift;
} else {
span = (u8)MR_GetSpanBlock(ld, row, pdBlock, map);
if (span == SPAN_INVALID)
return FALSE;
}
/* Get the array on which this span is present */
arRef = MR_LdSpanArrayGet(ld, span, map);
pd = MR_ArPdGet(arRef, physArm, map); /* Get the pd */
if (pd != MR_PD_INVALID)
/* Get dev handle from Pd. */
*pDevHandle = MR_PdDevHandleGet(pd, map);
else {
*pDevHandle = MR_PD_INVALID; /* set dev handle as invalid. */
if ((raid->level >= 5) &&
(!do_invader || (do_invader &&
(raid->regTypeReqOnRead != REGION_TYPE_UNUSED))))
pRAID_Context->regLockFlags = REGION_TYPE_EXCLUSIVE;
else if (raid->level == 1) {
/* Get alternate Pd. */
pd = MR_ArPdGet(arRef, physArm + 1, map);
if (pd != MR_PD_INVALID)
/* Get dev handle from Pd */
*pDevHandle = MR_PdDevHandleGet(pd, map);
}
}
*pdBlock += stripRef + le64_to_cpu(MR_LdSpanPtrGet(ld, span, map)->startBlk);
pRAID_Context->spanArm = (span << RAID_CTX_SPANARM_SPAN_SHIFT) |
physArm;
return retval;
}
/*
* *************************************************************
*
* This routine calculates the arm, span and block for
* the specified stripe and reference in stripe.
*
* Inputs :
*
* ld - Logical drive number
* stripRow - Stripe number
* stripRef - Reference in stripe
*
* Outputs :
*
* span - Span number
* block - Absolute Block number in the physical disk
*/
U8
MR_GetPhyParams(struct mrsas_instance *instance, U32 ld, U64 stripRow,
U16 stripRef, U64 *pdBlock, U16 *pDevHandle,
MPI2_SCSI_IO_VENDOR_UNIQUE *pRAID_Context, MR_FW_RAID_MAP_ALL *map)
{
MR_LD_RAID *raid = MR_LdRaidGet(ld, map);
U32 pd, arRef;
U8 physArm, span;
U64 row;
int error_code = 0;
U8 retval = TRUE;
U32 rowMod;
U32 armQ;
U32 arm;
U16 devid = instance->device_id;
ASSERT(raid->rowDataSize != 0);
row = (stripRow / raid->rowDataSize);
if (raid->level == 6) {
U32 logArm = (stripRow % (raid->rowDataSize));
if (raid->rowSize == 0) {
return (FALSE);
}
rowMod = (row % (raid->rowSize));
armQ = raid->rowSize-1-rowMod;
arm = armQ + 1 + logArm;
if (arm >= raid->rowSize)
arm -= raid->rowSize;
physArm = (U8)arm;
} else {
if (raid->modFactor == 0)
return (FALSE);
physArm = MR_LdDataArmGet(ld,
(stripRow % (raid->modFactor)), map);
}
if (raid->spanDepth == 1) {
span = 0;
*pdBlock = row << raid->stripeShift;
} else
span = (U8)MR_GetSpanBlock(ld, row, pdBlock, map, &error_code);
if (error_code == 1)
return (FALSE);
/* Get the array on which this span is present. */
arRef = MR_LdSpanArrayGet(ld, span, map);
/* Get the Pd. */
pd = MR_ArPdGet(arRef, physArm, map);
/* Get dev handle from Pd. */
if (pd != MR_PD_INVALID) {
*pDevHandle = MR_PdDevHandleGet(pd, map);
} else {
*pDevHandle = MR_PD_INVALID; /* set dev handle as invalid. */
if ((raid->level >= 5) &&
((devid != PCI_DEVICE_ID_LSI_INVADER) ||
((devid == PCI_DEVICE_ID_LSI_INVADER ||
(devid == PCI_DEVICE_ID_LSI_FURY)) &&
raid->regTypeReqOnRead != REGION_TYPE_UNUSED))) {
pRAID_Context->regLockFlags = REGION_TYPE_EXCLUSIVE;
} else if (raid->level == 1) {
/* Get Alternate Pd. */
pd = MR_ArPdGet(arRef, physArm + 1, map);
/* Get dev handle from Pd. */
if (pd != MR_PD_INVALID)
*pDevHandle = MR_PdDevHandleGet(pd, map);
}
}
*pdBlock += stripRef + MR_LdSpanPtrGet(ld, span, map)->startBlk;
pRAID_Context->spanArm = (span << RAID_CTX_SPANARM_SPAN_SHIFT) |
physArm;
return (retval);
}