From: Tom Sela <tomsela@amazon.com>
To: <jgg@nvidia.com>, <leon@kernel.org>, <linux-rdma@vger.kernel.org>,
<mrgolin@amazon.com>, <tomsela@amazon.com>
Cc: <sleybo@amazon.com>, <matua@amazon.com>, <gal.pressman@linux.dev>,
"Yonatan Nachum" <ynachum@amazon.com>
Subject: [PATCH for-next] RDMA/efa: Report 800 and 1600 Gbps link speed
Date: Mon, 8 Jun 2026 08:37:36 +0000 [thread overview]
Message-ID: <20260608083736.48454-1-tomsela@amazon.com> (raw)
Add support for reporting 800 Gbps as 8X NDR and 1600 Gbps as 8X XDR
link speeds.
Reviewed-by: Michael Margolin <mrgolin@amazon.com>
Reviewed-by: Yonatan Nachum <ynachum@amazon.com>
Signed-off-by: Tom Sela <tomsela@amazon.com>
---
drivers/infiniband/hw/efa/efa_verbs.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/efa/efa_verbs.c b/drivers/infiniband/hw/efa/efa_verbs.c
index 434d60235945..5cd34746e6a6 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) {
--
2.47.3
next reply other threads:[~2026-06-08 8:37 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-08 8:37 Tom Sela [this message]
2026-06-09 19:04 ` [PATCH for-next] RDMA/efa: Report 800 and 1600 Gbps link speed Jason Gunthorpe
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