Commit e1aba437 authored by Changpeng Liu's avatar Changpeng Liu Committed by Tomasz Zawadzki
Browse files

nvme: hide the 2MiB memory check in env API 



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

Change-Id: I74288ae8cab80e1be34583475fa02a3ae13e090c
Signed-off-by: default avatarChangpeng Liu <changpeng.liu@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5166


Community-CI: Mellanox Build Bot
Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
Reviewed-by: default avatarTomasz Zawadzki <tomasz.zawadzki@intel.com>
parent 47933914

lib/nvme/nvme_pcie.c

+4 −3
Original line number Diff line number Diff line
@@ -2037,7 +2037,7 @@ nvme_pcie_qpair_build_hw_sgl_request(struct spdk_nvme_qpair *qpair, struct nvme_ 
{

	int rc;

	void *virt_addr;

	uint64_t phys_addr;

	uint64_t phys_addr, mapping_length;

	uint32_t remaining_transfer_len, remaining_user_sge_len, length;

	struct spdk_nvme_sgl_descriptor *sgl;

	uint32_t nseg = 0;
@@ -2109,12 +2109,13 @@ nvme_pcie_qpair_build_hw_sgl_request(struct spdk_nvme_qpair *qpair, struct nvme_ 
				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) {

				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;

			virt_addr += length;