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nvme: hide the 2MiB memory check in env API

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spdk_vtophys() already checks that, so we don't need
to check it in the NVMe driver again.

Change-Id: I74288ae8cab80e1be34583475fa02a3ae13e090c
Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5166
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
This commit is contained in:
Changpeng Liu 2020-11-19 02:51:41 -05:00 committed by Tomasz Zawadzki
parent 4793391448
commit e1aba43745
1 changed files with 4 additions and 3 deletions
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7
lib/nvme/nvme_pcie.c
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@ -2037,7 +2037,7 @@ nvme_pcie_qpair_build_hw_sgl_request(struct spdk_nvme_qpair *qpair, struct nvme_
{ {
int rc; int rc;
void *virt_addr; void *virt_addr;
uint64_t phys_addr; uint64_t phys_addr, mapping_length;
uint32_t remaining_transfer_len, remaining_user_sge_len, length; uint32_t remaining_transfer_len, remaining_user_sge_len, length;
struct spdk_nvme_sgl_descriptor *sgl; struct spdk_nvme_sgl_descriptor *sgl;
uint32_t nseg = 0; uint32_t nseg = 0;
@ -2109,12 +2109,13 @@ nvme_pcie_qpair_build_hw_sgl_request(struct spdk_nvme_qpair *qpair, struct nvme_
goto exit; goto exit;
} }
phys_addr = spdk_vtophys(virt_addr, NULL); mapping_length = remaining_user_sge_len;
phys_addr = spdk_vtophys(virt_addr, &mapping_length);
if (phys_addr == SPDK_VTOPHYS_ERROR) { if (phys_addr == SPDK_VTOPHYS_ERROR) {
goto exit; goto exit;
} }
length = spdk_min(remaining_user_sge_len, VALUE_2MB - _2MB_OFFSET(virt_addr)); length = spdk_min(remaining_user_sge_len, mapping_length);
remaining_user_sge_len -= length; remaining_user_sge_len -= length;
virt_addr += length; virt_addr += length;