[2/5] Providers/rxe: Support alloc/dealloc xrcd

Commit Message

Bob Pearson July 30, 2021, 3:21 p.m. UTC

Add support for ibv_alloc_xrcd and ibv_dealloc_xrcd verbs.

Signed-off-by: Bob Pearson <[e-mail]>
---
 providers/rxe/rxe.c | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

Patch

diff --git a/providers/rxe/rxe.c b/providers/rxe/rxe.c
index 0776279c..3bb9f01c 100644
--- a/providers/rxe/rxe.c
+++ b/providers/rxe/rxe.c
@@ -128,6 +128,44 @@  static int rxe_dealloc_pd(struct ibv_pd *pd)
 	return ret;
 }
 
+static struct ibv_xrcd *rxe_open_xrcd(struct ibv_context *context,
+					struct ibv_xrcd_init_attr *attr)
+{
+	struct verbs_xrcd *xrcd;
+	int xrcd_size = sizeof(*xrcd);
+	struct ibv_open_xrcd cmd = {};
+	size_t cmd_size = sizeof(cmd);
+	struct ib_uverbs_open_xrcd_resp resp = {};
+	size_t resp_size = sizeof(resp);
+	int ret;
+
+	xrcd = calloc(1, sizeof(*xrcd));
+	if (!xrcd)
+		return NULL;
+
+	ret = ibv_cmd_open_xrcd(context, xrcd, xrcd_size, attr,
+				&cmd, cmd_size, &resp, resp_size);
+	if (ret) {
+		free(xrcd);
+		return NULL;
+	}
+
+	return &xrcd->xrcd;
+}
+
+static int rxe_close_xrcd(struct ibv_xrcd *ibxrcd)
+{
+	struct verbs_xrcd *xrcd = container_of(ibxrcd,
+					struct verbs_xrcd, xrcd);
+	int ret;
+
+	ret = ibv_cmd_close_xrcd(xrcd);
+	if (!ret)
+		free(xrcd);
+
+	return ret;
+}
+
 static struct ibv_mw *rxe_alloc_mw(struct ibv_pd *ibpd, enum ibv_mw_type type)
 {
 	int ret;
@@ -1742,6 +1780,8 @@  static const struct verbs_context_ops rxe_ctx_ops = {
 	.query_port = rxe_query_port,
 	.alloc_pd = rxe_alloc_pd,
 	.dealloc_pd = rxe_dealloc_pd,
+	.open_xrcd = rxe_open_xrcd,
+	.close_xrcd = rxe_close_xrcd,
 	.reg_mr = rxe_reg_mr,
 	.dereg_mr = rxe_dereg_mr,
 	.alloc_mw = rxe_alloc_mw,