diff mbox series

[rdma-next,1/2] RDMA/mana_ib: Allow registration of DMA-mapped memory in PDs

Message ID 1713363659-30156-2-git-send-email-kotaranov@linux.microsoft.com (mailing list archive)
State Changes Requested
Headers show
Series RDMA/mana_ib: Enable DMA-mapped memory regions | expand

Commit Message

Konstantin Taranov April 17, 2024, 2:20 p.m. UTC 
From: Konstantin Taranov <kotaranov@microsoft.com>

Allow the HW to register DMA-mapped memory for kernel-level PDs.

Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com>
---
 drivers/infiniband/hw/mana/main.c | 3 +++
 include/net/mana/gdma.h           | 1 +
 2 files changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/drivers/infiniband/hw/mana/main.c b/drivers/infiniband/hw/mana/main.c
index b31dcff32699..820af42d1fe1 100644
--- a/drivers/infiniband/hw/mana/main.c
+++ b/drivers/infiniband/hw/mana/main.c
@@ -82,6 +82,9 @@  int mana_ib_alloc_pd(struct ib_pd *ibpd, struct ib_udata *udata)
 	mana_gd_init_req_hdr(&req.hdr, GDMA_CREATE_PD, sizeof(req),
 			     sizeof(resp));
 
+	if (!udata)
+		flags |= GDMA_PD_FLAG_ALLOW_GPA_MR;
+
 	req.flags = flags;
 	err = mana_gd_send_request(gc, sizeof(req), &req,
 				   sizeof(resp), &resp);
diff --git a/include/net/mana/gdma.h b/include/net/mana/gdma.h
index 27684135bb4d..8d796a30ddde 100644
--- a/include/net/mana/gdma.h
+++ b/include/net/mana/gdma.h
@@ -762,6 +762,7 @@  struct gdma_destroy_dma_region_req {
 
 enum gdma_pd_flags {
 	GDMA_PD_FLAG_INVALID = 0,
+	GDMA_PD_FLAG_ALLOW_GPA_MR = 1,
 };
 
 struct gdma_create_pd_req {