ioat(4): Check ring links at grow/shrink in INVARIANTS
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6d41e1ed15
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1be25cc928
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=302686
@ -1591,6 +1591,18 @@ ring_grow(struct ioat_softc *ioat, uint32_t oldorder,
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hw->next = next->hw_desc_bus_addr;
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}
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#ifdef INVARIANTS
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for (i = 0; i < newsize; i++) {
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next = newring[(i + 1) & (newsize - 1)];
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hw = newring[i & (newsize - 1)]->u.dma;
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KASSERT(hw->next == next->hw_desc_bus_addr,
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("mismatch at i:%u (oldsize:%u); next=%p nextaddr=0x%lx"
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" (tail:%u)", i, oldsize, next, next->hw_desc_bus_addr,
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tail));
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}
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#endif
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free(ioat->ring, M_IOAT);
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ioat->ring = newring;
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ioat->ring_size_order = oldorder + 1;
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@ -1657,6 +1669,18 @@ ring_shrink(struct ioat_softc *ioat, uint32_t oldorder,
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next = newring[(ioat->tail + newsize) & (newsize - 1)];
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hw->next = next->hw_desc_bus_addr;
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#ifdef INVARIANTS
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for (i = 0; i < newsize; i++) {
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next = newring[(i + 1) & (newsize - 1)];
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hw = newring[i & (newsize - 1)]->u.dma;
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KASSERT(hw->next == next->hw_desc_bus_addr,
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("mismatch at i:%u (newsize:%u); next=%p nextaddr=0x%lx "
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"(tail:%u)", i, newsize, next, next->hw_desc_bus_addr,
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ioat->tail));
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}
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#endif
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free(ioat->ring, M_IOAT);
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ioat->ring = newring;
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ioat->ring_size_order = oldorder - 1;
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