From patchwork Tue Feb 22 13:28:17 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans S X-Patchwork-Id: 12755082 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8C51BC433EF for ; Tue, 22 Feb 2022 13:30:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232536AbiBVNaZ (ORCPT ); Tue, 22 Feb 2022 08:30:25 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58202 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232517AbiBVNaU (ORCPT ); Tue, 22 Feb 2022 08:30:20 -0500 Received: from mail-lj1-x22f.google.com (mail-lj1-x22f.google.com [IPv6:2a00:1450:4864:20::22f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EF4C915DDFE; Tue, 22 Feb 2022 05:29:47 -0800 (PST) Received: by mail-lj1-x22f.google.com with SMTP id v22so17638743ljh.7; Tue, 22 Feb 2022 05:29:47 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:organization:content-transfer-encoding; bh=oETJ8BHkapcELva/Ym67RlDH1CS2/CVd4pT03JpAmjk=; b=j12X/FWRwP1+D8mxEcvX9o1jdK90B92UFl6uKY24B15j42WEP+srspWV5F6vGLS3en 5VCaV/Gj4M0nNhycL7FB8zZgyWIDNhdMoxS0iRvH41gMixqELiqCg5nim0zw47KXtHtW ELNq6gZY3gg8tnJifGB04Cdp/JgrWC6J9lfsk2I3e2su10YMStxSFwFXSNY5AapTe2IU kk0Sth4aVEs8jIxztVhiV2ZMYcpHQSeMgSc/TfK02AjxIiIki5+BtqeRAFI469BH85e7 1PpvbjDd8Ygfb+IBp28O6yT+RHo79Zsswq2z8foV6zP7xRqKC5iN/YcKi708AJG5fHVa ZHYQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:organization:content-transfer-encoding; bh=oETJ8BHkapcELva/Ym67RlDH1CS2/CVd4pT03JpAmjk=; b=b9OM9+hC5IQySSxdOvlrK/5wAKaUdtqqNqczfKU6KS9BETBHlBxWhcTIPcwaioBGPb rZiUuc0EAbOMu4DYCTJD5aOkiVHgcXElwECfW1UPfgI409CaMUT27IMMfprHxoetNt5/ DbUPUTRt8u8CogR3773IR5c47rVmnh99ZnEI9ja/JRoZ9yrPsPCa39rXdTBxrrvWVbz5 krAgZpw8yfsqOKw9nYmF4wHLdcN8TuzeUz4e6P4VQTBKkx69bFHjnr0frh4a0p2ME2re TUe2wEha4DECs2F5W0OHVQVWOTus3TmV8zHzIIGg5Ht/dE+SLsMpjx+DJaFTZ08MZW4O Y3UQ== X-Gm-Message-State: AOAM530WzE2HRYzub3iS6NEDHN4QV3HrIScgk1fYyHoxTlsygK9zpSqA pbOnacWvlLPutnCXDsb+Xf4= X-Google-Smtp-Source: ABdhPJxwB+q7fkT4IJ7EndAKT1ahOl0DgKmvFhWAHFnAngrAcpm5HSGA7KZwvbpqXldPfYV8tXdcZg== X-Received: by 2002:a2e:2e0e:0:b0:246:1570:f001 with SMTP id u14-20020a2e2e0e000000b002461570f001mr17306006lju.217.1645536586366; Tue, 22 Feb 2022 05:29:46 -0800 (PST) Received: from wse-c0127.beijerelectronics.com ([208.127.141.29]) by smtp.gmail.com with ESMTPSA id e22sm1703685ljb.17.2022.02.22.05.29.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 22 Feb 2022 05:29:46 -0800 (PST) From: Hans Schultz X-Google-Original-From: Hans Schultz To: davem@davemloft.net, kuba@kernel.org Cc: netdev@vger.kernel.org, Hans Schultz , Andrew Lunn , Vivien Didelot , Florian Fainelli , Vladimir Oltean , Roopa Prabhu , Nikolay Aleksandrov , Shuah Khan , Stephen Suryaputra , David Ahern , Ido Schimmel , Petr Machata , Amit Cohen , Po-Hsu Lin , Baowen Zheng , linux-kernel@vger.kernel.org, bridge@lists.linux-foundation.org, linux-kselftest@vger.kernel.org Subject: [PATCH net-next v4 4/5] net: dsa: mv88e6xxx: Add support for bridge port locked mode Date: Tue, 22 Feb 2022 14:28:17 +0100 Message-Id: <20220222132818.1180786-5-schultz.hans+netdev@gmail.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220222132818.1180786-1-schultz.hans+netdev@gmail.com> References: <20220222132818.1180786-1-schultz.hans+netdev@gmail.com> MIME-Version: 1.0 Organization: Westermo Network Technologies AB Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Supporting bridge ports in locked mode using the drop on lock feature in Marvell mv88e6xxx switchcores is described in the '88E6096/88E6097/88E6097F Datasheet', sections 4.4.6, 4.4.7 and 5.1.2.1 (Drop on Lock). This feature is implemented here facilitated by the locked port flag. Signed-off-by: Hans Schultz --- drivers/net/dsa/mv88e6xxx/chip.c | 9 ++++++++- drivers/net/dsa/mv88e6xxx/port.c | 29 +++++++++++++++++++++++++++++ drivers/net/dsa/mv88e6xxx/port.h | 9 ++++++++- 3 files changed, 45 insertions(+), 2 deletions(-) diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index 58ca684d73f7..eed3713b97ae 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -5881,7 +5881,7 @@ static int mv88e6xxx_port_pre_bridge_flags(struct dsa_switch *ds, int port, const struct mv88e6xxx_ops *ops; if (flags.mask & ~(BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD | - BR_BCAST_FLOOD)) + BR_BCAST_FLOOD | BR_PORT_LOCKED)) return -EINVAL; ops = chip->info->ops; @@ -5939,6 +5939,13 @@ static int mv88e6xxx_port_bridge_flags(struct dsa_switch *ds, int port, goto out; } + if (flags.mask & BR_PORT_LOCKED) { + bool locked = !!(flags.val & BR_PORT_LOCKED); + + err = mv88e6xxx_port_set_lock(chip, port, locked); + if (err) + goto out; + } out: mv88e6xxx_reg_unlock(chip); diff --git a/drivers/net/dsa/mv88e6xxx/port.c b/drivers/net/dsa/mv88e6xxx/port.c index ab41619a809b..b71061009fd4 100644 --- a/drivers/net/dsa/mv88e6xxx/port.c +++ b/drivers/net/dsa/mv88e6xxx/port.c @@ -1234,6 +1234,35 @@ int mv88e6xxx_port_set_mirror(struct mv88e6xxx_chip *chip, int port, return err; } +int mv88e6xxx_port_set_lock(struct mv88e6xxx_chip *chip, int port, + bool locked) +{ + u16 reg; + int err; + + err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL0, ®); + if (err) + return err; + + reg &= ~MV88E6XXX_PORT_CTL0_SA_FILT_MASK; + if (locked) + reg |= MV88E6XXX_PORT_CTL0_SA_FILT_DROP_ON_LOCK; + + err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL0, reg); + if (err) + return err; + + err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_ASSOC_VECTOR, ®); + if (err) + return err; + + reg &= ~MV88E6XXX_PORT_ASSOC_VECTOR_LOCKED_PORT; + if (locked) + reg |= MV88E6XXX_PORT_ASSOC_VECTOR_LOCKED_PORT; + + return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_ASSOC_VECTOR, reg); +} + int mv88e6xxx_port_set_8021q_mode(struct mv88e6xxx_chip *chip, int port, u16 mode) { diff --git a/drivers/net/dsa/mv88e6xxx/port.h b/drivers/net/dsa/mv88e6xxx/port.h index 03382b66f800..3f70557f0d48 100644 --- a/drivers/net/dsa/mv88e6xxx/port.h +++ b/drivers/net/dsa/mv88e6xxx/port.h @@ -142,7 +142,11 @@ /* Offset 0x04: Port Control Register */ #define MV88E6XXX_PORT_CTL0 0x04 #define MV88E6XXX_PORT_CTL0_USE_CORE_TAG 0x8000 -#define MV88E6XXX_PORT_CTL0_DROP_ON_LOCK 0x4000 +#define MV88E6XXX_PORT_CTL0_SA_FILT_MASK 0xc000 +#define MV88E6XXX_PORT_CTL0_SA_FILT_DISABLED 0x0000 +#define MV88E6XXX_PORT_CTL0_SA_FILT_DROP_ON_LOCK 0x4000 +#define MV88E6XXX_PORT_CTL0_SA_FILT_DROP_ON_UNLOCK 0x8000 +#define MV88E6XXX_PORT_CTL0_SA_FILT_DROP_ON_CPU 0xc000 #define MV88E6XXX_PORT_CTL0_EGRESS_MODE_MASK 0x3000 #define MV88E6XXX_PORT_CTL0_EGRESS_MODE_UNMODIFIED 0x0000 #define MV88E6XXX_PORT_CTL0_EGRESS_MODE_UNTAGGED 0x1000 @@ -365,6 +369,9 @@ int mv88e6xxx_port_set_fid(struct mv88e6xxx_chip *chip, int port, u16 fid); int mv88e6xxx_port_get_pvid(struct mv88e6xxx_chip *chip, int port, u16 *pvid); int mv88e6xxx_port_set_pvid(struct mv88e6xxx_chip *chip, int port, u16 pvid); +int mv88e6xxx_port_set_lock(struct mv88e6xxx_chip *chip, int port, + bool locked); + int mv88e6xxx_port_set_8021q_mode(struct mv88e6xxx_chip *chip, int port, u16 mode); int mv88e6095_port_tag_remap(struct mv88e6xxx_chip *chip, int port);