From: Tom Sela <tomsela@amazon.com>
Date: Mon, 8 Jun 2026 08:37:36 +0000 (+0000)
Subject: RDMA/efa: Report 800 and 1600 Gbps link speed
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=7d4f515b66ebce2bb2ba09e8be4ff615a1579031;p=thirdparty%2Fkernel%2Flinux.git

RDMA/efa: Report 800 and 1600 Gbps link speed

Add support for reporting 800 Gbps as 8X NDR and 1600 Gbps as 8X XDR
link speeds.

Link: https://patch.msgid.link/r/20260608083736.48454-1-tomsela@amazon.com
Reviewed-by: Michael Margolin <mrgolin@amazon.com>
Reviewed-by: Yonatan Nachum <ynachum@amazon.com>
Signed-off-by: Tom Sela <tomsela@amazon.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
---

diff --git a/drivers/infiniband/hw/efa/efa_verbs.c b/drivers/infiniband/hw/efa/efa_verbs.c
index 434d602359452..5cd34746e6a6e 100644
--- a/drivers/infiniband/hw/efa/efa_verbs.c
+++ b/drivers/infiniband/hw/efa/efa_verbs.c
@@ -282,7 +282,13 @@ static void efa_link_gbps_to_speed_and_width(u16 gbps,
 					     enum ib_port_speed *speed,
 					     enum ib_port_width *width)
 {
-	if (gbps >= 400) {
+	if (gbps >= 1600) {
+		*width = IB_WIDTH_8X;
+		*speed = IB_SPEED_XDR;
+	} else if (gbps >= 800) {
+		*width = IB_WIDTH_8X;
+		*speed = IB_SPEED_NDR;
+	} else if (gbps >= 400) {
 		*width = IB_WIDTH_8X;
 		*speed = IB_SPEED_HDR;
 	} else if (gbps >= 200) {