From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pdx-out-015.esa.us-west-2.outbound.mail-perimeter.amazon.com (pdx-out-015.esa.us-west-2.outbound.mail-perimeter.amazon.com [50.112.246.219]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 81EC03B2FF3 for ; Mon, 8 Jun 2026 08:39:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=50.112.246.219 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780907988; cv=none; b=YbERMc3ZkjpCR7w+QBzR0X+hPYtGlyeBRaTPBETSzeqRyBQvvSA4djERDPBkY723JiGS87p9E/5yy7dRS0UmXxSIgQ8A621UTQAkEALPmmKz/GHOH14y+BpuM0o4ARc9c4RM2779ElZ2DrtCOR7s3vOsO69xheuDM0dORRhq3o0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780907988; c=relaxed/simple; bh=BYqWTyumGhikMgkAqsBe8bf9BSzUYZ7YT2815x5AKJg=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=aQJRr95OTmIaU93pwrO1Arh0Hs0cVbeK65It4jwJ12uWhMyWBye3lTShR5H0l0oxird5zVxc/rh5M1E5IAg4caeUe2QbfzlDDZOw8rOUg0Ymk3LbuYp1JpgRSItFBGRXEQy47r+3RrKHKQBSAE4r7W1J+GmlialmgmskPTkvOeg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amazon.com; spf=pass smtp.mailfrom=amazon.com; dkim=pass (2048-bit key) header.d=amazon.com header.i=@amazon.com header.b=mLtnT8Ri; arc=none smtp.client-ip=50.112.246.219 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amazon.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=amazon.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=amazon.com header.i=@amazon.com header.b="mLtnT8Ri" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazoncorp2; t=1780907982; x=1812443982; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=ktvOzhf24dRI636xNEwXUMcQrJA8HLln+4yE2KXE3Mw=; b=mLtnT8RiN08p+Oz/9wVZcyxsJvS/Gq1rnHWX1S0Ao1T4KH/1KTsznGgu BTZHpPKOyduap37IqCemb6gaaWmSn7Nt/OEvLb3HUX3opxzRwb/Ljjz0P DXSpRW5kSr/AnmLvZQXT/6PgakLx0YoDbVT5uXPtmiKItZmPPwsysqfuX 9Rvgn0NuRoLfxFED+Rekf7FscKrmqhMrKCVTv0xmurFT82tqb2gntPetZ dunuvviGdJ1NGvE7yJD6NgbMUdzutmKrO/05feyDrY/b7eWCbrjLv8SA9 /K+9qB/Slwa01BsKIKAlhBjkQcveeq4osakDB0WVaLogAs2cSi+Mz5jfX w==; X-CSE-ConnectionGUID: Ye+U+V+dSmqiPMsuG9azeg== X-CSE-MsgGUID: wpEYQhWUSZK002Y82mlwyg== X-IronPort-AV: E=Sophos;i="6.24,194,1774310400"; d="scan'208";a="21118378" Received: from ip-10-5-9-48.us-west-2.compute.internal (HELO smtpout.naws.us-west-2.prod.farcaster.email.amazon.dev) ([10.5.9.48]) by internal-pdx-out-015.esa.us-west-2.outbound.mail-perimeter.amazon.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Jun 2026 08:39:37 +0000 Received: from EX19MTAUWC001.ant.amazon.com [205.251.233.105:14454] by smtpin.naws.us-west-2.prod.farcaster.email.amazon.dev [10.0.31.226:2525] with esmtp (Farcaster) id 3cdd3052-0d0f-41c4-b97c-20d28d6b5286; Mon, 8 Jun 2026 08:39:37 +0000 (UTC) X-Farcaster-Flow-ID: 3cdd3052-0d0f-41c4-b97c-20d28d6b5286 Received: from EX19D001UWA001.ant.amazon.com (10.13.138.214) by EX19MTAUWC001.ant.amazon.com (10.250.64.174) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) id 15.2.2562.37; Mon, 8 Jun 2026 08:39:37 +0000 Received: from dev-dsk-tomsela-1c-ce9cc34e.eu-west-1.amazon.com (10.15.30.17) by EX19D001UWA001.ant.amazon.com (10.13.138.214) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) id 15.2.2562.37; Mon, 8 Jun 2026 08:39:35 +0000 From: Tom Sela To: , , , , CC: , , , "Yonatan Nachum" Subject: [PATCH for-next] RDMA/efa: Implement the query port speed verb Date: Mon, 8 Jun 2026 08:39:27 +0000 Message-ID: <20260608083927.4116-1-tomsela@amazon.com> X-Mailer: git-send-email 2.47.3 Precedence: bulk X-Mailing-List: linux-rdma@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: EX19D045UWA001.ant.amazon.com (10.13.139.83) To EX19D001UWA001.ant.amazon.com (10.13.138.214) Implement the query port speed callback to report the port effective bandwidth directly in 100 Mb/s granularity. Reviewed-by: Michael Margolin Reviewed-by: Yonatan Nachum Signed-off-by: Tom Sela --- drivers/infiniband/hw/efa/efa.h | 1 + drivers/infiniband/hw/efa/efa_com_cmd.c | 4 ++++ drivers/infiniband/hw/efa/efa_main.c | 1 + drivers/infiniband/hw/efa/efa_verbs.c | 13 ++++++++++--- 4 files changed, 16 insertions(+), 3 deletions(-) diff --git a/drivers/infiniband/hw/efa/efa.h b/drivers/infiniband/hw/efa/efa.h index 00b19f2ba3da..f4586bb170c1 100644 --- a/drivers/infiniband/hw/efa/efa.h +++ b/drivers/infiniband/hw/efa/efa.h @@ -148,6 +148,7 @@ int efa_query_device(struct ib_device *ibdev, struct ib_udata *udata); int efa_query_port(struct ib_device *ibdev, u32 port, struct ib_port_attr *props); +int efa_query_port_speed(struct ib_device *ibdev, u32 port_num, u64 *speed); int efa_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask, struct ib_qp_init_attr *qp_init_attr); diff --git a/drivers/infiniband/hw/efa/efa_com_cmd.c b/drivers/infiniband/hw/efa/efa_com_cmd.c index 63c7f07806a8..5db4f5805b59 100644 --- a/drivers/infiniband/hw/efa/efa_com_cmd.c +++ b/drivers/infiniband/hw/efa/efa_com_cmd.c @@ -6,6 +6,8 @@ #include "efa_com.h" #include "efa_com_cmd.h" +#define EFA_DEFAULT_LINK_SPEED_GBPS 100 + int efa_com_create_qp(struct efa_com_dev *edev, struct efa_com_create_qp_params *params, struct efa_com_create_qp_result *res) @@ -468,6 +470,8 @@ int efa_com_get_device_attr(struct efa_com_dev *edev, result->device_caps = resp.u.device_attr.device_caps; result->guid = resp.u.device_attr.guid; result->max_link_speed_gbps = resp.u.device_attr.max_link_speed_gbps; + if (!result->max_link_speed_gbps) + result->max_link_speed_gbps = EFA_DEFAULT_LINK_SPEED_GBPS; if (result->admin_api_version < 1) { ibdev_err_ratelimited( diff --git a/drivers/infiniband/hw/efa/efa_main.c b/drivers/infiniband/hw/efa/efa_main.c index 03c237c8c81e..97da8e828e34 100644 --- a/drivers/infiniband/hw/efa/efa_main.c +++ b/drivers/infiniband/hw/efa/efa_main.c @@ -390,6 +390,7 @@ static const struct ib_device_ops efa_dev_ops = { .query_gid = efa_query_gid, .query_pkey = efa_query_pkey, .query_port = efa_query_port, + .query_port_speed = efa_query_port_speed, .query_qp = efa_query_qp, .reg_user_mr = efa_reg_mr, .reg_user_mr_dmabuf = efa_reg_user_mr_dmabuf, diff --git a/drivers/infiniband/hw/efa/efa_verbs.c b/drivers/infiniband/hw/efa/efa_verbs.c index 5cd34746e6a6..5bb00cb85775 100644 --- a/drivers/infiniband/hw/efa/efa_verbs.c +++ b/drivers/infiniband/hw/efa/efa_verbs.c @@ -90,8 +90,6 @@ static const struct rdma_stat_desc efa_port_stats_descs[] = { EFA_DEFINE_PORT_STATS(EFA_STATS_STR) }; -#define EFA_DEFAULT_LINK_SPEED_GBPS 100 - #define EFA_CHUNK_PAYLOAD_SHIFT 12 #define EFA_CHUNK_PAYLOAD_SIZE BIT(EFA_CHUNK_PAYLOAD_SHIFT) #define EFA_CHUNK_PAYLOAD_PTR_SIZE 8 @@ -332,7 +330,7 @@ int efa_query_port(struct ib_device *ibdev, u32 port, props->phys_state = IB_PORT_PHYS_STATE_LINK_UP; props->gid_tbl_len = 1; props->pkey_tbl_len = 1; - link_gbps = dev->dev_attr.max_link_speed_gbps ?: EFA_DEFAULT_LINK_SPEED_GBPS; + link_gbps = dev->dev_attr.max_link_speed_gbps; efa_link_gbps_to_speed_and_width(link_gbps, &link_speed, &link_width); props->active_speed = link_speed; props->active_width = link_width; @@ -344,6 +342,15 @@ int efa_query_port(struct ib_device *ibdev, u32 port, return 0; } +int efa_query_port_speed(struct ib_device *ibdev, u32 port_num, u64 *speed) +{ + struct efa_dev *dev = to_edev(ibdev); + + *speed = dev->dev_attr.max_link_speed_gbps * 10; + + return 0; +} + int efa_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask, struct ib_qp_init_attr *qp_init_attr) -- 2.47.3