From patchwork Tue Oct 1 17:31:05 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandru Gagniuc X-Patchwork-Id: 832700 Received: from us-smtp-delivery-162.mimecast.com (us-smtp-delivery-162.mimecast.com [170.10.133.162]) (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 682A01CDFDB for ; Tue, 1 Oct 2024 17:32:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.162 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727803941; cv=none; b=GxmXwoXQ/73bShPLlJrOQiTmQWLUAttgvPLkZSNbYrv6of+2qYsNLLdnqnV+fwPYOB7U9bs+Kui/WhAAuveKAnak73QL9dOWAkCmIu6w9PivzXDv5HhDZ89TqZnPe+2ln/czTGzbjGP7eV7aRQzxreRs9QA47Ln9BDKHoEAXR0I= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727803941; c=relaxed/simple; bh=s6/akAZsgWqiuMk26sEf6V9ItVqhVmu5+dG+4vYNaXg=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version:Content-Type; b=azu9D71MonRafoiThOBg8Dwq+orBKSefYaKAO2FBYoYpk0TtYkJfQI0UdUt4jjuGFd2lgElICph+1/RWuH5JFBGkfVhGpLhzwJwybqA4Yi0gTSUTv9pZwysQW9JX3MgbB6em5+Y8SavxnFOTxhBGtkp9458j6Aj+U4G7boGEiGI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=hp.com; spf=pass smtp.mailfrom=hp.com; dkim=pass (1024-bit key) header.d=hp.com header.i=@hp.com header.b=foh8QRdN; arc=none smtp.client-ip=170.10.133.162 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=hp.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=hp.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=hp.com header.i=@hp.com header.b="foh8QRdN" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=hp.com; s=mimecast20180716; t=1727803938; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=pq/Dm2clE4lZ83DOiVWYmNMrV36eWwjNAXhOWGGYXak=; b=foh8QRdNk422SJ1Ia8qOfeucQi8UpqrEVF0lhhBw3C8/onuNH8Am7cuXZFpuETwxwps1d3 f6nYcW81Oiik/kLrWOMPHy2OV8mWgF0ca+7e1eB6bdAT5ez94LJkHSvMscpycM95RaEzEj GmK01svyTCuyxaw7IMvnXxANiWhu0x4= Received: from g8t13016g.inc.hp.com (hpifallback.mail.core.hp.com [15.72.64.134]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-364-XyXImHsdPT-O_3v_vPRZnw-1; Tue, 01 Oct 2024 13:32:17 -0400 X-MC-Unique: XyXImHsdPT-O_3v_vPRZnw-1 Received: from g7t14407g.inc.hpicorp.net (g7t14407g.inc.hpicorp.net [15.63.19.131]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by g8t13016g.inc.hp.com (Postfix) with ESMTPS id 7362F600021C; Tue, 1 Oct 2024 17:32:16 +0000 (UTC) Received: from localhost.localdomain (unknown [15.53.255.151]) by g7t14407g.inc.hpicorp.net (Postfix) with ESMTP id 1371A18; Tue, 1 Oct 2024 17:32:14 +0000 (UTC) From: Alexandru Gagniuc To: gregkh@linuxfoundation.org, stable@vger.kernel.org Cc: qin.wan@hp.com, andreas.noever@gmail.com, michael.jamet@intel.com, mika.westerberg@linux.intel.com, YehezkelShB@gmail.com, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Alexandru Gagniuc Subject: [PATCH 6.6 10/14] thunderbolt: Introduce tb_for_each_upstream_port_on_path() Date: Tue, 1 Oct 2024 17:31:05 +0000 Message-Id: <20241001173109.1513-11-alexandru.gagniuc@hp.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241001173109.1513-1-alexandru.gagniuc@hp.com> References: <20241001173109.1513-1-alexandru.gagniuc@hp.com> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: hp.com From: Mika Westerberg [ Upstream commit 956c3abe72fb6a651b8cf77c28462f7e5b6a48b1 ] This is useful when walking over upstream lane adapters over given path. Signed-off-by: Mika Westerberg Signed-off-by: Qin Wan Signed-off-by: Alexandru Gagniuc --- drivers/thunderbolt/tb.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h index 6d66dd2a3ab0..4cd5f48e3dee 100644 --- a/drivers/thunderbolt/tb.h +++ b/drivers/thunderbolt/tb.h @@ -1076,6 +1076,21 @@ static inline bool tb_port_use_credit_allocation(const struct tb_port *port) for ((p) = tb_next_port_on_path((src), (dst), NULL); (p); \ (p) = tb_next_port_on_path((src), (dst), (p))) +/** + * tb_for_each_upstream_port_on_path() - Iterate over each upstreamm port on path + * @src: Source port + * @dst: Destination port + * @p: Port used as iterator + * + * Walks over each upstream lane adapter on path from @src to @dst. + */ +#define tb_for_each_upstream_port_on_path(src, dst, p) \ + for ((p) = tb_next_port_on_path((src), (dst), NULL); (p); \ + (p) = tb_next_port_on_path((src), (dst), (p))) \ + if (!tb_port_is_null((p)) || !tb_is_upstream_port((p))) {\ + continue; \ + } else + int tb_port_get_link_speed(struct tb_port *port); int tb_port_get_link_generation(struct tb_port *port); int tb_port_get_link_width(struct tb_port *port);