MTHCA_ICM_PAGE_SHIFT
(PAGE_SHIFT - MTHCA_ICM_PAGE_SHIFT);
if (lg < MTHCA_ICM_PAGE_SHIFT) {
(lg - MTHCA_ICM_PAGE_SHIFT));
(PAGE_SHIFT - MTHCA_ICM_PAGE_SHIFT);
MTHCA_ICM_PAGE_SIZE = 1 << MTHCA_ICM_PAGE_SHIFT,