Message ID | 20231118155105.25678-27-yury.norov@gmail.com |
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State | New |
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[2620:137:e000::3:7]) by mx.google.com with ESMTPS id z3-20020a17090abd8300b00280a01a906esi6917424pjr.162.2023.11.18.07.54.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 18 Nov 2023 07:54:48 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:7 as permitted sender) client-ip=2620:137:e000::3:7; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20230601 header.b=S4GwRONQ; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:7 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by snail.vger.email (Postfix) with ESMTP id 57C2780A5FB8; Sat, 18 Nov 2023 07:54:47 -0800 (PST) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.11 at snail.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231431AbjKRPy0 (ORCPT <rfc822;jaysivo@gmail.com> + 29 others); Sat, 18 Nov 2023 10:54:26 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49912 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230409AbjKRPxG (ORCPT <rfc822;linux-kernel@vger.kernel.org>); Sat, 18 Nov 2023 10:53:06 -0500 Received: from mail-yw1-x112a.google.com (mail-yw1-x112a.google.com [IPv6:2607:f8b0:4864:20::112a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DF76A1FD9; Sat, 18 Nov 2023 07:51:48 -0800 (PST) Received: by mail-yw1-x112a.google.com with SMTP id 00721157ae682-5c516f92759so32038617b3.2; Sat, 18 Nov 2023 07:51:48 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1700322708; x=1700927508; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=fm1bHPEyELp3MiPjOSu0bHDojYqM84986duNSStQHBY=; b=S4GwRONQN6Sg7Bq0l5QNXv2PN7PtyWj4PbeIQm1D0PgHld0Aue9+G9wJIa3+VR6r4N 69fckYz3ZFtTSrTmp3wBm9HgI4AFnN9oP8kq2NFoUF7zI5qMGuq0QfN8uWOwRlPcugwb SgsXAzhcRoKLyTeBcAykIkmKaVsdwZTdnJ5oMwlTmUIrFNm6hE7uIZwbfaRavFTiFbSN vgLIi9Doss0CR/kd4xoJudiEEg0LxDUQSmpsoAPa9Rmil3o3cEkzZkK+0SN5LNZQnmG0 AT8q/gLHLLhO5bFeMeduSD7QNmlMQ2PI9YysiarzIbxyaKqkuWP1uhYJj7ntZbz/adua lqdQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1700322708; x=1700927508; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=fm1bHPEyELp3MiPjOSu0bHDojYqM84986duNSStQHBY=; b=GvT1qHTA1uEw494ni2VTjuK/ejdoxx2W4wC6b86eetyhkRQcvwqLVuPHZqngQNHWE9 dH4nYSxgs41Au6dTRF9+wxsmX1DMAdGL7VCzEidM3cTZGwg1rs/eU/bEz0zTRhR/U9Cv 4+s+twvmyjJy2dfHPNz27sxaCqP7cz7hoyB0d8Z8tZ+36nFIJD2LMr98ongzkb7HAhpm mQUe43NT0Q9kPYAErdfb28epsXkRnD2REq0gxnuFzu5G+q9qlahmAT24manx57LN1lPJ OrJhi7ujbDrip45E/9MuE9on4tDNZSIDVWJ11mMeaERVCsriDnS1kjXNYTS+PA6WFcoX Phkw== X-Gm-Message-State: AOJu0YxMJB6d2rNmyaG7G7trBdICttbdfXUClSnpYrs9S3nhXHKBdK0e ZNaImNiBiHR4RDMbCI7KngBlwAnUSXF289po X-Received: by 2002:a81:ef0d:0:b0:59b:5696:c33 with SMTP id o13-20020a81ef0d000000b0059b56960c33mr2780375ywm.46.1700322707666; Sat, 18 Nov 2023 07:51:47 -0800 (PST) Received: from localhost ([2601:344:8301:57f0:48a9:bd4c:868d:dc97]) by smtp.gmail.com with ESMTPSA id b65-20020a0dd944000000b005a8c392f498sm1167821ywe.82.2023.11.18.07.51.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 18 Nov 2023 07:51:46 -0800 (PST) From: Yury Norov <yury.norov@gmail.com> To: linux-kernel@vger.kernel.org, Jiri Pirko <jiri@resnulli.us>, "David S. Miller" <davem@davemloft.net>, Eric Dumazet <edumazet@google.com>, Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>, netdev@vger.kernel.org Cc: Yury Norov <yury.norov@gmail.com>, Jan Kara <jack@suse.cz>, Mirsad Todorovac <mirsad.todorovac@alu.unizg.hr>, Matthew Wilcox <willy@infradead.org>, Rasmus Villemoes <linux@rasmusvillemoes.dk>, Andy Shevchenko <andriy.shevchenko@linux.intel.com>, Maxim Kuvyrkov <maxim.kuvyrkov@linaro.org>, Alexey Klimov <klimov.linux@gmail.com> Subject: [PATCH 26/34] ethernet: rocker: optimize ofdpa_port_internal_vlan_id_get() Date: Sat, 18 Nov 2023 07:50:57 -0800 Message-Id: <20231118155105.25678-27-yury.norov@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20231118155105.25678-1-yury.norov@gmail.com> References: <20231118155105.25678-1-yury.norov@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: <linux-kernel.vger.kernel.org> X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (snail.vger.email [0.0.0.0]); Sat, 18 Nov 2023 07:54:47 -0800 (PST) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1782917773174574155 X-GMAIL-MSGID: 1782917773174574155 |
Series |
biops: add atomig find_bit() operations
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Commit Message
Yury Norov
Nov. 18, 2023, 3:50 p.m. UTC
Optimize ofdpa_port_internal_vlan_id_get() by using find_and_set_bit(),
instead of polling every bit from bitmap in a for-loop.
Signed-off-by: Yury Norov <yury.norov@gmail.com>
---
drivers/net/ethernet/rocker/rocker_ofdpa.c | 11 ++++-------
1 file changed, 4 insertions(+), 7 deletions(-)
diff --git a/drivers/net/ethernet/rocker/rocker_ofdpa.c b/drivers/net/ethernet/rocker/rocker_ofdpa.c index 826990459fa4..449be8af7ffc 100644 --- a/drivers/net/ethernet/rocker/rocker_ofdpa.c +++ b/drivers/net/ethernet/rocker/rocker_ofdpa.c @@ -2249,14 +2249,11 @@ static __be16 ofdpa_port_internal_vlan_id_get(struct ofdpa_port *ofdpa_port, found = entry; hash_add(ofdpa->internal_vlan_tbl, &found->entry, found->ifindex); - for (i = 0; i < OFDPA_N_INTERNAL_VLANS; i++) { - if (test_and_set_bit(i, ofdpa->internal_vlan_bitmap)) - continue; + i = find_and_set_bit(ofdpa->internal_vlan_bitmap, OFDPA_N_INTERNAL_VLANS); + if (i < OFDPA_N_INTERNAL_VLANS) found->vlan_id = htons(OFDPA_INTERNAL_VLAN_ID_BASE + i); - goto found; - } - - netdev_err(ofdpa_port->dev, "Out of internal VLAN IDs\n"); + else + netdev_err(ofdpa_port->dev, "Out of internal VLAN IDs\n"); found: found->ref_count++;