u32 MR_GetSpanBlock(u32 ld, u64 row, u64 *span_blk,
struct MR_FW_RAID_MAP_ALL *map)
{
struct MR_SPAN_BLOCK_INFO *pSpanBlock = MR_LdSpanInfoGet(ld, map);
struct MR_QUAD_ELEMENT *quad;
struct MR_LD_RAID *raid = MR_LdRaidGet(ld, map);
u32 span, j;
for (span = 0; span < raid->spanDepth; span++, pSpanBlock++) {
for (j = 0; j < le32_to_cpu(pSpanBlock->block_span_info.noElements); j++) {
quad = &pSpanBlock->block_span_info.quad[j];
if (le32_to_cpu(quad->diff) == 0)
return SPAN_INVALID;
if (le64_to_cpu(quad->logStart) <= row && row <=
le64_to_cpu(quad->logEnd) && (mega_mod64(row - le64_to_cpu(quad->logStart),
le32_to_cpu(quad->diff))) == 0) {
if (span_blk != NULL) {
u64 blk, debugBlk;
blk = mega_div64_32((row-le64_to_cpu(quad->logStart)), le32_to_cpu(quad->diff));
debugBlk = blk;
blk = (blk + le64_to_cpu(quad->offsetInSpan)) << raid->stripeShift;
*span_blk = blk;
}
return span;
}
}
}
return SPAN_INVALID;
}
U32
MR_GetSpanBlock(U32 ld, U64 row, U64 *span_blk, MR_FW_RAID_MAP_ALL *map,
int *div_error)
{
MR_SPAN_BLOCK_INFO *pSpanBlock = MR_LdSpanInfoGet(ld, map);
MR_QUAD_ELEMENT *qe;
MR_LD_RAID *raid = MR_LdRaidGet(ld, map);
U32 span, j;
for (span = 0; span < raid->spanDepth; span++, pSpanBlock++) {
for (j = 0; j < pSpanBlock->block_span_info.noElements; j++) {
qe = &pSpanBlock->block_span_info.quads[j];
if (qe->diff == 0) {
*div_error = 1;
return (span);
}
if (qe->logStart <= row && row <= qe->logEnd &&
(((row - qe->logStart) % qe->diff)) == 0) {
if (span_blk != NULL) {
U64 blk;
blk = ((row - qe->logStart) /
(qe->diff));
blk = (blk + qe->offsetInSpan) <<
raid->stripeShift;
*span_blk = blk;
}
return (span);
}
}
}
return (span);
}