diff options
| -rw-r--r-- | drivers/nvme/nvme.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/nvme/nvme.c b/drivers/nvme/nvme.c index 22ded626a5..9623c896a1 100644 --- a/drivers/nvme/nvme.c +++ b/drivers/nvme/nvme.c @@ -100,7 +100,7 @@ static int nvme_setup_prps(struct nvme_dev *dev, u64 *prp2, } nprps = DIV_ROUND_UP(length, page_size); - num_pages = DIV_ROUND_UP(nprps + 1, prps_per_page); + num_pages = DIV_ROUND_UP(nprps, prps_per_page); if (nprps > dev->prp_entry_num) { free(dev->prp_pool); @@ -119,11 +119,10 @@ static int nvme_setup_prps(struct nvme_dev *dev, u64 *prp2, prp_pool = dev->prp_pool; i = 0; while (nprps) { - if (i == prps_per_page) { - *(prp_pool + i) = *(prp_pool + i - 1); - *(prp_pool + i - 1) = cpu_to_le64((ulong)prp_pool + + if (i == ((page_size >> 3) - 1)) { + *(prp_pool + i) = cpu_to_le64((ulong)prp_pool + page_size); - i = 1; + i = 0; prp_pool += page_size; } *(prp_pool + i++) = cpu_to_le64(dma_addr); |