From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Thomas Lamprecht Date: Sat, 7 Jan 2023 13:48:41 +0100 Subject: [PATCH] Revert "RDMA/irdma: Report the correct link speed" seem to cause a regression with some NICs: https://lore.kernel.org/netdev/CAK8fFZ6A_Gphw_3-QMGKEFQk=sfCw1Qmq0TVZK3rtAi7vb621A@mail.gmail.com/ This reverts commit e8553504e366c8a47d1f6156c30d6eb9778cda13. Signed-off-by: Thomas Lamprecht --- drivers/infiniband/hw/irdma/verbs.c | 35 ++++++++++++++++++++++++++--- 1 file changed, 32 insertions(+), 3 deletions(-) diff --git a/drivers/infiniband/hw/irdma/verbs.c b/drivers/infiniband/hw/irdma/verbs.c index f6973ea55eda..132fe91bb799 100644 --- a/drivers/infiniband/hw/irdma/verbs.c +++ b/drivers/infiniband/hw/irdma/verbs.c @@ -63,6 +63,36 @@ static int irdma_query_device(struct ib_device *ibdev, return 0; } +/** + * irdma_get_eth_speed_and_width - Get IB port speed and width from netdev speed + * @link_speed: netdev phy link speed + * @active_speed: IB port speed + * @active_width: IB port width + */ +static void irdma_get_eth_speed_and_width(u32 link_speed, u16 *active_speed, + u8 *active_width) +{ + if (link_speed <= SPEED_1000) { + *active_width = IB_WIDTH_1X; + *active_speed = IB_SPEED_SDR; + } else if (link_speed <= SPEED_10000) { + *active_width = IB_WIDTH_1X; + *active_speed = IB_SPEED_FDR10; + } else if (link_speed <= SPEED_20000) { + *active_width = IB_WIDTH_4X; + *active_speed = IB_SPEED_DDR; + } else if (link_speed <= SPEED_25000) { + *active_width = IB_WIDTH_1X; + *active_speed = IB_SPEED_EDR; + } else if (link_speed <= SPEED_40000) { + *active_width = IB_WIDTH_4X; + *active_speed = IB_SPEED_FDR10; + } else { + *active_width = IB_WIDTH_4X; + *active_speed = IB_SPEED_EDR; + } +} + /** * irdma_query_port - get port attributes * @ibdev: device pointer from stack @@ -90,9 +120,8 @@ static int irdma_query_port(struct ib_device *ibdev, u32 port, props->state = IB_PORT_DOWN; props->phys_state = IB_PORT_PHYS_STATE_DISABLED; } - - ib_get_eth_speed(ibdev, port, &props->active_speed, - &props->active_width); + irdma_get_eth_speed_and_width(SPEED_100000, &props->active_speed, + &props->active_width); if (rdma_protocol_roce(ibdev, 1)) { props->gid_tbl_len = 32;