[PATCH 2/2] nvme-multipath: enable PCI P2PDMA for multipath devices
Chaitanya Kulkarni <[email protected]>
| Newsgroups | gmane.linux.raid |
|---|---|
| Message-ID | <[email protected]> |
NVMe multipath does not expose BLK_FEAT_PCI_P2PDMA on the head disk even when the underlying controller supports it. Set BLK_FEAT_PCI_P2PDMA in nvme_mpath_alloc_disk() when the controller advertises P2PDMA support via ctrl->ops->supports_pci_p2pdma. Signed-off-by: Chaitanya Kulkarni <[email protected]> Signed-off-by: Kiran Kumar Modukuri <[email protected]> --- drivers/nvme/host/multipath.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c index ba00f0b72b85..c49fca43ef19 100644 --- a/drivers/nvme/host/multipath.c +++ b/drivers/nvme/host/multipath.c @@ -737,6 +737,9 @@ int nvme_mpath_alloc_disk(struct nvme_ctrl *ctrl, struct nvme_ns_head *head) BLK_FEAT_POLL | BLK_FEAT_ATOMIC_WRITES; if (head->ids.csi == NVME_CSI_ZNS) lim.features |= BLK_FEAT_ZONED; + if (ctrl->ops && ctrl->ops->supports_pci_p2pdma && + ctrl->ops->supports_pci_p2pdma(ctrl)) + lim.features |= BLK_FEAT_PCI_P2PDMA; head->disk = blk_alloc_disk(&lim, ctrl->numa_node); if (IS_ERR(head->disk)) -- 2.39.5