From nobody Tue Dec 2 02:04:03 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 AB7223019CD; Thu, 20 Nov 2025 15:15:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763651729; cv=none; b=KXpg9nOdcTIwX5aGLpl+a51Pn59h8ZWxSJxhvpXTte6hOydxz8TCRbHShsX0HHGk9KV87bInw4FNfI8NwFBKrAw7LfTzoZSJVhPAb+h+lUkRAgkWOMW00OLB0/mClKGTyr2TfWA5rO89XRKyAsNkyr5zCl6sDNrsJUn+znC7aDw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763651729; c=relaxed/simple; bh=qEP5AS74tK0c7P9eQV81SfItHNGKZNPzmBQKG7ur/7U=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=WKJvCDKp3/o2WNnGdSuISYBhvRyqm/XonNVN8lsajuTpSX59xLSSFFtAw2408O40kUT/Gl2UsENsrJSQjPW9T+Ih/SsMBWSzqLROvBfbklyeHiTTJWir/dvNd78IIQfxp4F2bHdtqwQ1OpsL+28GN4ajhjXYf0CYd8nQ8YLK1X8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Kyppj42h; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Kyppj42h" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3915AC4CEF1; Thu, 20 Nov 2025 15:15:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1763651728; bh=qEP5AS74tK0c7P9eQV81SfItHNGKZNPzmBQKG7ur/7U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Kyppj42hgWuSUxfMWhoZ8Lep6FcmDhRLbE46XuoEoqUno8bac4AT3nLfyD/5qhLq7 HjrOMX3XwPEarxvcSBI/DfBFMlz+e2vPNHTKQu7zVb4ACSCFYXIYmRTwE3SSs/PnUs RxgYjpl6xDI/PzbTnlHFgssbK2GEAjCjLnkTQe7CupjsK+8N7kCxZ3ImqELYfoLHuu M2TIoIU4qosjQ98pTLzGBo2807Iwl3BKAub9xeemBH7AX/fjljFEF/gIBmRm6c6/Du ZvrL5OKs80DJYH9rkJwDNee1VgT0VKDG1d63wDwCGDb2fwieWhm03cvTbfU+taYILV pg9idqSQZKEow== From: Leon Romanovsky To: Jason Gunthorpe , Leon Romanovsky Cc: linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org, Maher Sanalla , Michael Guralnik Subject: [PATCH rdma-next 1/2] RDMA/core: Add new IB rate for XDR (8x) support Date: Thu, 20 Nov 2025 17:15:15 +0200 Message-ID: <20251120-speed-8-v1-1-e6a7efef8cb8@nvidia.com> X-Mailer: git-send-email 2.51.1 In-Reply-To: <20251120-speed-8-v1-0-e6a7efef8cb8@nvidia.com> References: <20251120-speed-8-v1-0-e6a7efef8cb8@nvidia.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" X-Mailer: b4 0.15-dev-a6db3 Content-Transfer-Encoding: quoted-printable From: Maher Sanalla Add the new rates as defined in the Infiniband spec for XDR and 8x link width support. Furthermore, modify the utility conversion methods accordingly. Reference: IB Spec Release 1.8 Reviewed-by: Michael Guralnik Signed-off-by: Maher Sanalla Signed-off-by: Leon Romanovsky Reviewed-by: Kalesh AP --- drivers/infiniband/core/verbs.c | 3 +++ include/rdma/ib_verbs.h | 1 + 2 files changed, 4 insertions(+) diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verb= s.c index 3a5f81402d2f..11b1a194de44 100644 --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -148,6 +148,7 @@ __attribute_const__ int ib_rate_to_mult(enum ib_rate ra= te) case IB_RATE_400_GBPS: return 160; case IB_RATE_600_GBPS: return 240; case IB_RATE_800_GBPS: return 320; + case IB_RATE_1600_GBPS: return 640; default: return -1; } } @@ -178,6 +179,7 @@ __attribute_const__ enum ib_rate mult_to_ib_rate(int mu= lt) case 160: return IB_RATE_400_GBPS; case 240: return IB_RATE_600_GBPS; case 320: return IB_RATE_800_GBPS; + case 640: return IB_RATE_1600_GBPS; default: return IB_RATE_PORT_CURRENT; } } @@ -208,6 +210,7 @@ __attribute_const__ int ib_rate_to_mbps(enum ib_rate ra= te) case IB_RATE_400_GBPS: return 425000; case IB_RATE_600_GBPS: return 637500; case IB_RATE_800_GBPS: return 850000; + case IB_RATE_1600_GBPS: return 1700000; default: return -1; } } diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 0a85af610b6b..6aad66bc5dd7 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -859,6 +859,7 @@ enum ib_rate { IB_RATE_400_GBPS =3D 21, IB_RATE_600_GBPS =3D 22, IB_RATE_800_GBPS =3D 23, + IB_RATE_1600_GBPS =3D 25, }; =20 /** --=20 2.51.1