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ioat(4): Check ring links at grow/shrink in INVARIANTS

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This commit is contained in:
Conrad Meyer 2016-07-12 21:57:05 +00:00
parent 6d41e1ed15
commit 1be25cc928
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=302686
1 changed files with 24 additions and 0 deletions
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24
sys/dev/ioat/ioat.c
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@ -1591,6 +1591,18 @@ ring_grow(struct ioat_softc *ioat, uint32_t oldorder,
hw->next = next->hw_desc_bus_addr;
}
#ifdef INVARIANTS
for (i = 0; i < newsize; i++) {
next = newring[(i + 1) & (newsize - 1)];
hw = newring[i & (newsize - 1)]->u.dma;
KASSERT(hw->next == next->hw_desc_bus_addr,
("mismatch at i:%u (oldsize:%u); next=%p nextaddr=0x%lx"
" (tail:%u)", i, oldsize, next, next->hw_desc_bus_addr,
tail));
}
#endif
free(ioat->ring, M_IOAT);
ioat->ring = newring;
ioat->ring_size_order = oldorder + 1;
@ -1657,6 +1669,18 @@ ring_shrink(struct ioat_softc *ioat, uint32_t oldorder,
next = newring[(ioat->tail + newsize) & (newsize - 1)];
hw->next = next->hw_desc_bus_addr;
#ifdef INVARIANTS
for (i = 0; i < newsize; i++) {
next = newring[(i + 1) & (newsize - 1)];
hw = newring[i & (newsize - 1)]->u.dma;
KASSERT(hw->next == next->hw_desc_bus_addr,
("mismatch at i:%u (newsize:%u); next=%p nextaddr=0x%lx "
"(tail:%u)", i, newsize, next, next->hw_desc_bus_addr,
ioat->tail));
}
#endif
free(ioat->ring, M_IOAT);
ioat->ring = newring;
ioat->ring_size_order = oldorder - 1;