From patchwork Sat Oct 10 15:41:14 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ido Schimmel X-Patchwork-Id: 270165 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AA832C433E7 for ; Sat, 10 Oct 2020 22:54:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 76D4A2075E for ; Sat, 10 Oct 2020 22:54:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388563AbgJJWyJ (ORCPT ); Sat, 10 Oct 2020 18:54:09 -0400 Received: from out3-smtp.messagingengine.com ([66.111.4.27]:46197 "EHLO out3-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730262AbgJJSzw (ORCPT ); Sat, 10 Oct 2020 14:55:52 -0400 Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailout.nyi.internal (Postfix) with ESMTP id 0C8065C00D9; Sat, 10 Oct 2020 11:41:51 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute3.internal (MEProxy); Sat, 10 Oct 2020 11:41:51 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; bh=xVOzhAZ/5cfR1H3np1vZXaEyLGoHlTSKOfwz74dsBQg=; b=Hux/Flzb 19xH2OS8xSRqPHXE3C4O1NW8UnUW1N08Qsgdp/CPLfN+03Imc8mZbqXd8rFRxrbY BXSmGFS7GrihbV3TLIaCjwKiZKdN5leRm0DiqoO5Q/8mu7IPWpAeZFm7DVK7FSyd w+E19eZplxTKXnL23lKKZB1gKuzyYu5OzzC6/Tbw3eNC0YfBtiklrZSS0595Z1zR l15NY4PoN4FnXkR3xd9MDLNmlf88q7HzZx2LLhH/G0g6GCxKMGofmadrVGrVwP85 wi7FEStkuAGV51dGWxSmhZ5NkMBgiOBB+QAeIA7C6bB6cz0ekdC1dgzUUCbEHbZh O+C/uem3zD5sHQ== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedujedrheefgdelvdcutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecunecujfgurhephffvufffkffojghfggfgsedtkeertd ertddtnecuhfhrohhmpefkughoucfutghhihhmmhgvlhcuoehiughoshgthhesihguohhs tghhrdhorhhgqeenucggtffrrghtthgvrhhnpeduteeiveffffevleekleejffekhfekhe fgtdfftefhledvjefggfehgfevjeekhfenucfkphepkeegrddvvdelrdefjedrudegkeen ucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfhhrohhmpehiughosh gthhesihguohhstghhrdhorhhg X-ME-Proxy: Received: from shredder.mtl.com (igld-84-229-37-148.inter.net.il [84.229.37.148]) by mail.messagingengine.com (Postfix) with ESMTPA id 46956328005A; Sat, 10 Oct 2020 11:41:49 -0400 (EDT) From: Ido Schimmel To: netdev@vger.kernel.org Cc: davem@davemloft.net, kuba@kernel.org, jiri@nvidia.com, danieller@nvidia.com, andrew@lunn.ch, f.fainelli@gmail.com, mkubecek@suse.cz, mlxsw@nvidia.com, Ido Schimmel Subject: [PATCH net-next 1/6] ethtool: Extend link modes settings uAPI with lanes Date: Sat, 10 Oct 2020 18:41:14 +0300 Message-Id: <20201010154119.3537085-2-idosch@idosch.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201010154119.3537085-1-idosch@idosch.org> References: <20201010154119.3537085-1-idosch@idosch.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Danielle Ratson Currently, when auto negotiation is on, the user can advertise all the linkmodes which correspond to a specific speed, but does not have a similar selector for the number of lanes. This is significant when a specific speed can be achieved using different number of lanes. For example, 2x50 or 4x25. Add 'ETHTOOL_A_LINKMODES_LANES' attribute and expand 'struct ethtool_link_settings' with lanes field in order to implement a new lanes-selector that will enable the user to advertise a specific number of lanes as well. When auto negotiation is off, lanes parameter can be forced only if the driver supports it. Add a capability bit in 'struct ethtool_ops' that allows ethtool know if the driver can handle the lanes parameter when auto negotiation is off, so if it does not, an error message will be returned when trying to set lanes. Example: $ ethtool -s swp1 lanes 4 $ ethtool swp1 Settings for swp1: Supported ports: [ FIBRE ] Supported link modes: 1000baseKX/Full 10000baseKR/Full 40000baseCR4/Full 40000baseSR4/Full 40000baseLR4/Full 25000baseCR/Full 25000baseSR/Full 50000baseCR2/Full 100000baseSR4/Full 100000baseCR4/Full Supported pause frame use: Symmetric Receive-only Supports auto-negotiation: Yes Supported FEC modes: Not reported Advertised link modes: 40000baseCR4/Full 40000baseSR4/Full 40000baseLR4/Full 100000baseSR4/Full 100000baseCR4/Full Advertised pause frame use: No Advertised auto-negotiation: Yes Advertised FEC modes: Not reported Speed: Unknown! Duplex: Unknown! (255) Auto-negotiation: on Port: Direct Attach Copper PHYAD: 0 Transceiver: internal Link detected: no Signed-off-by: Danielle Ratson Reviewed-by: Jiri Pirko Signed-off-by: Ido Schimmel --- Documentation/networking/ethtool-netlink.rst | 11 +- include/linux/ethtool.h | 4 + include/uapi/linux/ethtool.h | 8 + include/uapi/linux/ethtool_netlink.h | 1 + net/ethtool/linkmodes.c | 227 +++++++++++-------- net/ethtool/netlink.h | 2 +- 6 files changed, 158 insertions(+), 95 deletions(-) diff --git a/Documentation/networking/ethtool-netlink.rst b/Documentation/networking/ethtool-netlink.rst index 30b98245979f..05073482db05 100644 --- a/Documentation/networking/ethtool-netlink.rst +++ b/Documentation/networking/ethtool-netlink.rst @@ -431,16 +431,17 @@ Request contents: ``ETHTOOL_A_LINKMODES_SPEED`` u32 link speed (Mb/s) ``ETHTOOL_A_LINKMODES_DUPLEX`` u8 duplex mode ``ETHTOOL_A_LINKMODES_MASTER_SLAVE_CFG`` u8 Master/slave port mode + ``ETHTOOL_A_LINKMODES_LANES`` u32 lanes ========================================== ====== ========================== ``ETHTOOL_A_LINKMODES_OURS`` bit set allows setting advertised link modes. If autonegotiation is on (either set now or kept from before), advertised modes are not changed (no ``ETHTOOL_A_LINKMODES_OURS`` attribute) and at least one -of speed and duplex is specified, kernel adjusts advertised modes to all -supported modes matching speed, duplex or both (whatever is specified). This -autoselection is done on ethtool side with ioctl interface, netlink interface -is supposed to allow requesting changes without knowing what exactly kernel -supports. +of speed, duplex and lanes is specified, kernel adjusts advertised modes to all +supported modes matching speed, duplex, lanes or all (whatever is specified). +This autoselection is done on ethtool side with ioctl interface, netlink +interface is supposed to allow requesting changes without knowing what exactly +kernel supports. LINKSTATE_GET diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h index 6408b446051f..4945ce487f01 100644 --- a/include/linux/ethtool.h +++ b/include/linux/ethtool.h @@ -128,6 +128,7 @@ struct ethtool_link_ksettings { __ETHTOOL_DECLARE_LINK_MODE_MASK(advertising); __ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising); } link_modes; + u32 lanes; }; /** @@ -241,6 +242,8 @@ bool ethtool_convert_link_mode_to_legacy_u32(u32 *legacy_u32, ETHTOOL_COALESCE_PKT_RATE_LOW | ETHTOOL_COALESCE_PKT_RATE_HIGH | \ ETHTOOL_COALESCE_RATE_SAMPLE_INTERVAL) +#define ETHTOOL_CAP_LINK_LANES_SUPPORTED BIT(0) + #define ETHTOOL_STAT_NOT_SET (~0ULL) /** @@ -419,6 +422,7 @@ struct ethtool_pause_stats { * of the generic netdev features interface. */ struct ethtool_ops { + u32 capabilities; u32 supported_coalesce_params; void (*get_drvinfo)(struct net_device *, struct ethtool_drvinfo *); int (*get_regs_len)(struct net_device *); diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h index 9ca87bc73c44..2125b93ecee0 100644 --- a/include/uapi/linux/ethtool.h +++ b/include/uapi/linux/ethtool.h @@ -1738,6 +1738,14 @@ static inline int ethtool_validate_speed(__u32 speed) return speed <= INT_MAX || speed == (__u32)SPEED_UNKNOWN; } +/* Lanes, 1, 2, 4 or 8. */ +#define ETHTOOL_LANES_1 1 +#define ETHTOOL_LANES_2 2 +#define ETHTOOL_LANES_4 4 +#define ETHTOOL_LANES_8 8 + +#define ETHTOOL_LANES_UNKNOWN 0 + /* Duplex, half or full. */ #define DUPLEX_HALF 0x00 #define DUPLEX_FULL 0x01 diff --git a/include/uapi/linux/ethtool_netlink.h b/include/uapi/linux/ethtool_netlink.h index e2bf36e6964b..a286635ac9b8 100644 --- a/include/uapi/linux/ethtool_netlink.h +++ b/include/uapi/linux/ethtool_netlink.h @@ -227,6 +227,7 @@ enum { ETHTOOL_A_LINKMODES_DUPLEX, /* u8 */ ETHTOOL_A_LINKMODES_MASTER_SLAVE_CFG, /* u8 */ ETHTOOL_A_LINKMODES_MASTER_SLAVE_STATE, /* u8 */ + ETHTOOL_A_LINKMODES_LANES, /* u32 */ /* add new constants above here */ __ETHTOOL_A_LINKMODES_CNT, diff --git a/net/ethtool/linkmodes.c b/net/ethtool/linkmodes.c index c5bcb9abc8b9..a1f02896ed8b 100644 --- a/net/ethtool/linkmodes.c +++ b/net/ethtool/linkmodes.c @@ -152,12 +152,14 @@ const struct ethnl_request_ops ethnl_linkmodes_request_ops = { struct link_mode_info { int speed; + int lanes; u8 duplex; }; -#define __DEFINE_LINK_MODE_PARAMS(_speed, _type, _duplex) \ +#define __DEFINE_LINK_MODE_PARAMS(_speed, _type, _lanes, _duplex) \ [ETHTOOL_LINK_MODE(_speed, _type, _duplex)] = { \ .speed = SPEED_ ## _speed, \ + .lanes = ETHTOOL_LANES_ ## _lanes, \ .duplex = __DUPLEX_ ## _duplex \ } #define __DUPLEX_Half DUPLEX_HALF @@ -165,105 +167,106 @@ struct link_mode_info { #define __DEFINE_SPECIAL_MODE_PARAMS(_mode) \ [ETHTOOL_LINK_MODE_ ## _mode ## _BIT] = { \ .speed = SPEED_UNKNOWN, \ + .lanes = ETHTOOL_LANES_UNKNOWN, \ .duplex = DUPLEX_UNKNOWN, \ } static const struct link_mode_info link_mode_params[] = { - __DEFINE_LINK_MODE_PARAMS(10, T, Half), - __DEFINE_LINK_MODE_PARAMS(10, T, Full), - __DEFINE_LINK_MODE_PARAMS(100, T, Half), - __DEFINE_LINK_MODE_PARAMS(100, T, Full), - __DEFINE_LINK_MODE_PARAMS(1000, T, Half), - __DEFINE_LINK_MODE_PARAMS(1000, T, Full), + __DEFINE_LINK_MODE_PARAMS(10, T, 1, Half), + __DEFINE_LINK_MODE_PARAMS(10, T, 1, Full), + __DEFINE_LINK_MODE_PARAMS(100, T, 1, Half), + __DEFINE_LINK_MODE_PARAMS(100, T, 1, Full), + __DEFINE_LINK_MODE_PARAMS(1000, T, 1, Half), + __DEFINE_LINK_MODE_PARAMS(1000, T, 1, Full), __DEFINE_SPECIAL_MODE_PARAMS(Autoneg), __DEFINE_SPECIAL_MODE_PARAMS(TP), __DEFINE_SPECIAL_MODE_PARAMS(AUI), __DEFINE_SPECIAL_MODE_PARAMS(MII), __DEFINE_SPECIAL_MODE_PARAMS(FIBRE), __DEFINE_SPECIAL_MODE_PARAMS(BNC), - __DEFINE_LINK_MODE_PARAMS(10000, T, Full), + __DEFINE_LINK_MODE_PARAMS(10000, T, 1, Full), __DEFINE_SPECIAL_MODE_PARAMS(Pause), __DEFINE_SPECIAL_MODE_PARAMS(Asym_Pause), - __DEFINE_LINK_MODE_PARAMS(2500, X, Full), + __DEFINE_LINK_MODE_PARAMS(2500, X, 1, Full), __DEFINE_SPECIAL_MODE_PARAMS(Backplane), - __DEFINE_LINK_MODE_PARAMS(1000, KX, Full), - __DEFINE_LINK_MODE_PARAMS(10000, KX4, Full), - __DEFINE_LINK_MODE_PARAMS(10000, KR, Full), + __DEFINE_LINK_MODE_PARAMS(1000, KX, 1, Full), + __DEFINE_LINK_MODE_PARAMS(10000, KX4, 4, Full), + __DEFINE_LINK_MODE_PARAMS(10000, KR, 1, Full), [ETHTOOL_LINK_MODE_10000baseR_FEC_BIT] = { .speed = SPEED_10000, .duplex = DUPLEX_FULL, }, - __DEFINE_LINK_MODE_PARAMS(20000, MLD2, Full), - __DEFINE_LINK_MODE_PARAMS(20000, KR2, Full), - __DEFINE_LINK_MODE_PARAMS(40000, KR4, Full), - __DEFINE_LINK_MODE_PARAMS(40000, CR4, Full), - __DEFINE_LINK_MODE_PARAMS(40000, SR4, Full), - __DEFINE_LINK_MODE_PARAMS(40000, LR4, Full), - __DEFINE_LINK_MODE_PARAMS(56000, KR4, Full), - __DEFINE_LINK_MODE_PARAMS(56000, CR4, Full), - __DEFINE_LINK_MODE_PARAMS(56000, SR4, Full), - __DEFINE_LINK_MODE_PARAMS(56000, LR4, Full), - __DEFINE_LINK_MODE_PARAMS(25000, CR, Full), - __DEFINE_LINK_MODE_PARAMS(25000, KR, Full), - __DEFINE_LINK_MODE_PARAMS(25000, SR, Full), - __DEFINE_LINK_MODE_PARAMS(50000, CR2, Full), - __DEFINE_LINK_MODE_PARAMS(50000, KR2, Full), - __DEFINE_LINK_MODE_PARAMS(100000, KR4, Full), - __DEFINE_LINK_MODE_PARAMS(100000, SR4, Full), - __DEFINE_LINK_MODE_PARAMS(100000, CR4, Full), - __DEFINE_LINK_MODE_PARAMS(100000, LR4_ER4, Full), - __DEFINE_LINK_MODE_PARAMS(50000, SR2, Full), - __DEFINE_LINK_MODE_PARAMS(1000, X, Full), - __DEFINE_LINK_MODE_PARAMS(10000, CR, Full), - __DEFINE_LINK_MODE_PARAMS(10000, SR, Full), - __DEFINE_LINK_MODE_PARAMS(10000, LR, Full), - __DEFINE_LINK_MODE_PARAMS(10000, LRM, Full), - __DEFINE_LINK_MODE_PARAMS(10000, ER, Full), - __DEFINE_LINK_MODE_PARAMS(2500, T, Full), - __DEFINE_LINK_MODE_PARAMS(5000, T, Full), + __DEFINE_LINK_MODE_PARAMS(20000, MLD2, 2, Full), + __DEFINE_LINK_MODE_PARAMS(20000, KR2, 2, Full), + __DEFINE_LINK_MODE_PARAMS(40000, KR4, 4, Full), + __DEFINE_LINK_MODE_PARAMS(40000, CR4, 4, Full), + __DEFINE_LINK_MODE_PARAMS(40000, SR4, 4, Full), + __DEFINE_LINK_MODE_PARAMS(40000, LR4, 4, Full), + __DEFINE_LINK_MODE_PARAMS(56000, KR4, 4, Full), + __DEFINE_LINK_MODE_PARAMS(56000, CR4, 4, Full), + __DEFINE_LINK_MODE_PARAMS(56000, SR4, 4, Full), + __DEFINE_LINK_MODE_PARAMS(56000, LR4, 4, Full), + __DEFINE_LINK_MODE_PARAMS(25000, CR, 1, Full), + __DEFINE_LINK_MODE_PARAMS(25000, KR, 1, Full), + __DEFINE_LINK_MODE_PARAMS(25000, SR, 1, Full), + __DEFINE_LINK_MODE_PARAMS(50000, CR2, 2, Full), + __DEFINE_LINK_MODE_PARAMS(50000, KR2, 2, Full), + __DEFINE_LINK_MODE_PARAMS(100000, KR4, 4, Full), + __DEFINE_LINK_MODE_PARAMS(100000, SR4, 4, Full), + __DEFINE_LINK_MODE_PARAMS(100000, CR4, 4, Full), + __DEFINE_LINK_MODE_PARAMS(100000, LR4_ER4, 4, Full), + __DEFINE_LINK_MODE_PARAMS(50000, SR2, 2, Full), + __DEFINE_LINK_MODE_PARAMS(1000, X, 1, Full), + __DEFINE_LINK_MODE_PARAMS(10000, CR, 1, Full), + __DEFINE_LINK_MODE_PARAMS(10000, SR, 1, Full), + __DEFINE_LINK_MODE_PARAMS(10000, LR, 1, Full), + __DEFINE_LINK_MODE_PARAMS(10000, LRM, 1, Full), + __DEFINE_LINK_MODE_PARAMS(10000, ER, 1, Full), + __DEFINE_LINK_MODE_PARAMS(2500, T, 1, Full), + __DEFINE_LINK_MODE_PARAMS(5000, T, 1, Full), __DEFINE_SPECIAL_MODE_PARAMS(FEC_NONE), __DEFINE_SPECIAL_MODE_PARAMS(FEC_RS), __DEFINE_SPECIAL_MODE_PARAMS(FEC_BASER), - __DEFINE_LINK_MODE_PARAMS(50000, KR, Full), - __DEFINE_LINK_MODE_PARAMS(50000, SR, Full), - __DEFINE_LINK_MODE_PARAMS(50000, CR, Full), - __DEFINE_LINK_MODE_PARAMS(50000, LR_ER_FR, Full), - __DEFINE_LINK_MODE_PARAMS(50000, DR, Full), - __DEFINE_LINK_MODE_PARAMS(100000, KR2, Full), - __DEFINE_LINK_MODE_PARAMS(100000, SR2, Full), - __DEFINE_LINK_MODE_PARAMS(100000, CR2, Full), - __DEFINE_LINK_MODE_PARAMS(100000, LR2_ER2_FR2, Full), - __DEFINE_LINK_MODE_PARAMS(100000, DR2, Full), - __DEFINE_LINK_MODE_PARAMS(200000, KR4, Full), - __DEFINE_LINK_MODE_PARAMS(200000, SR4, Full), - __DEFINE_LINK_MODE_PARAMS(200000, LR4_ER4_FR4, Full), - __DEFINE_LINK_MODE_PARAMS(200000, DR4, Full), - __DEFINE_LINK_MODE_PARAMS(200000, CR4, Full), - __DEFINE_LINK_MODE_PARAMS(100, T1, Full), - __DEFINE_LINK_MODE_PARAMS(1000, T1, Full), - __DEFINE_LINK_MODE_PARAMS(400000, KR8, Full), - __DEFINE_LINK_MODE_PARAMS(400000, SR8, Full), - __DEFINE_LINK_MODE_PARAMS(400000, LR8_ER8_FR8, Full), - __DEFINE_LINK_MODE_PARAMS(400000, DR8, Full), - __DEFINE_LINK_MODE_PARAMS(400000, CR8, Full), + __DEFINE_LINK_MODE_PARAMS(50000, KR, 1, Full), + __DEFINE_LINK_MODE_PARAMS(50000, SR, 1, Full), + __DEFINE_LINK_MODE_PARAMS(50000, CR, 1, Full), + __DEFINE_LINK_MODE_PARAMS(50000, LR_ER_FR, 1, Full), + __DEFINE_LINK_MODE_PARAMS(50000, DR, 1, Full), + __DEFINE_LINK_MODE_PARAMS(100000, KR2, 2, Full), + __DEFINE_LINK_MODE_PARAMS(100000, SR2, 2, Full), + __DEFINE_LINK_MODE_PARAMS(100000, CR2, 2, Full), + __DEFINE_LINK_MODE_PARAMS(100000, LR2_ER2_FR2, 2, Full), + __DEFINE_LINK_MODE_PARAMS(100000, DR2, 2, Full), + __DEFINE_LINK_MODE_PARAMS(200000, KR4, 4, Full), + __DEFINE_LINK_MODE_PARAMS(200000, SR4, 4, Full), + __DEFINE_LINK_MODE_PARAMS(200000, LR4_ER4_FR4, 4, Full), + __DEFINE_LINK_MODE_PARAMS(200000, DR4, 4, Full), + __DEFINE_LINK_MODE_PARAMS(200000, CR4, 4, Full), + __DEFINE_LINK_MODE_PARAMS(100, T1, 1, Full), + __DEFINE_LINK_MODE_PARAMS(1000, T1, 1, Full), + __DEFINE_LINK_MODE_PARAMS(400000, KR8, 8, Full), + __DEFINE_LINK_MODE_PARAMS(400000, SR8, 8, Full), + __DEFINE_LINK_MODE_PARAMS(400000, LR8_ER8_FR8, 8, Full), + __DEFINE_LINK_MODE_PARAMS(400000, DR8, 8, Full), + __DEFINE_LINK_MODE_PARAMS(400000, CR8, 8, Full), __DEFINE_SPECIAL_MODE_PARAMS(FEC_LLRS), - __DEFINE_LINK_MODE_PARAMS(100000, KR, Full), - __DEFINE_LINK_MODE_PARAMS(100000, SR, Full), - __DEFINE_LINK_MODE_PARAMS(100000, LR_ER_FR, Full), - __DEFINE_LINK_MODE_PARAMS(100000, DR, Full), - __DEFINE_LINK_MODE_PARAMS(100000, CR, Full), - __DEFINE_LINK_MODE_PARAMS(200000, KR2, Full), - __DEFINE_LINK_MODE_PARAMS(200000, SR2, Full), - __DEFINE_LINK_MODE_PARAMS(200000, LR2_ER2_FR2, Full), - __DEFINE_LINK_MODE_PARAMS(200000, DR2, Full), - __DEFINE_LINK_MODE_PARAMS(200000, CR2, Full), - __DEFINE_LINK_MODE_PARAMS(400000, KR4, Full), - __DEFINE_LINK_MODE_PARAMS(400000, SR4, Full), - __DEFINE_LINK_MODE_PARAMS(400000, LR4_ER4_FR4, Full), - __DEFINE_LINK_MODE_PARAMS(400000, DR4, Full), - __DEFINE_LINK_MODE_PARAMS(400000, CR4, Full), - __DEFINE_LINK_MODE_PARAMS(100, FX, Half), - __DEFINE_LINK_MODE_PARAMS(100, FX, Full), + __DEFINE_LINK_MODE_PARAMS(100000, KR, 1, Full), + __DEFINE_LINK_MODE_PARAMS(100000, SR, 1, Full), + __DEFINE_LINK_MODE_PARAMS(100000, LR_ER_FR, 1, Full), + __DEFINE_LINK_MODE_PARAMS(100000, DR, 1, Full), + __DEFINE_LINK_MODE_PARAMS(100000, CR, 1, Full), + __DEFINE_LINK_MODE_PARAMS(200000, KR2, 2, Full), + __DEFINE_LINK_MODE_PARAMS(200000, SR2, 2, Full), + __DEFINE_LINK_MODE_PARAMS(200000, LR2_ER2_FR2, 2, Full), + __DEFINE_LINK_MODE_PARAMS(200000, DR2, 2, Full), + __DEFINE_LINK_MODE_PARAMS(200000, CR2, 2, Full), + __DEFINE_LINK_MODE_PARAMS(400000, KR4, 4, Full), + __DEFINE_LINK_MODE_PARAMS(400000, SR4, 4, Full), + __DEFINE_LINK_MODE_PARAMS(400000, LR4_ER4_FR4, 4, Full), + __DEFINE_LINK_MODE_PARAMS(400000, DR4, 4, Full), + __DEFINE_LINK_MODE_PARAMS(400000, CR4, 4, Full), + __DEFINE_LINK_MODE_PARAMS(100, FX, 1, Half), + __DEFINE_LINK_MODE_PARAMS(100, FX, 1, Full), }; const struct nla_policy ethnl_linkmodes_set_policy[] = { @@ -274,16 +277,17 @@ const struct nla_policy ethnl_linkmodes_set_policy[] = { [ETHTOOL_A_LINKMODES_SPEED] = { .type = NLA_U32 }, [ETHTOOL_A_LINKMODES_DUPLEX] = { .type = NLA_U8 }, [ETHTOOL_A_LINKMODES_MASTER_SLAVE_CFG] = { .type = NLA_U8 }, + [ETHTOOL_A_LINKMODES_LANES] = { .type = NLA_U32 }, }; -/* Set advertised link modes to all supported modes matching requested speed - * and duplex values. Called when autonegotiation is on, speed or duplex is - * requested but no link mode change. This is done in userspace with ioctl() - * interface, move it into kernel for netlink. +/* Set advertised link modes to all supported modes matching requested speed, + * lanes and duplex values. Called when autonegotiation is on, speed, lanes or + * duplex is requested but no link mode change. This is done in userspace with + * ioctl() interface, move it into kernel for netlink. * Returns true if advertised modes bitmap was modified. */ static bool ethnl_auto_linkmodes(struct ethtool_link_ksettings *ksettings, - bool req_speed, bool req_duplex) + bool req_speed, bool req_lanes, bool req_duplex) { unsigned long *advertising = ksettings->link_modes.advertising; unsigned long *supported = ksettings->link_modes.supported; @@ -302,6 +306,7 @@ static bool ethnl_auto_linkmodes(struct ethtool_link_ksettings *ksettings, continue; if (test_bit(i, supported) && (!req_speed || info->speed == ksettings->base.speed) && + (!req_lanes || info->lanes == ksettings->lanes) && (!req_duplex || info->duplex == ksettings->base.duplex)) set_bit(i, advertising); else @@ -325,12 +330,25 @@ static bool ethnl_validate_master_slave_cfg(u8 cfg) return false; } +static bool ethnl_validate_lanes_cfg(u32 cfg) +{ + switch (cfg) { + case ETHTOOL_LANES_1: + case ETHTOOL_LANES_2: + case ETHTOOL_LANES_4: + case ETHTOOL_LANES_8: + return true; + } + + return false; +} + static int ethnl_update_linkmodes(struct genl_info *info, struct nlattr **tb, struct ethtool_link_ksettings *ksettings, - bool *mod) + bool *mod, const struct net_device *dev) { struct ethtool_link_settings *lsettings = &ksettings->base; - bool req_speed, req_duplex; + bool req_speed, req_lanes, req_duplex; const struct nlattr *master_slave_cfg; int ret; @@ -353,10 +371,39 @@ static int ethnl_update_linkmodes(struct genl_info *info, struct nlattr **tb, *mod = false; req_speed = tb[ETHTOOL_A_LINKMODES_SPEED]; + req_lanes = tb[ETHTOOL_A_LINKMODES_LANES]; req_duplex = tb[ETHTOOL_A_LINKMODES_DUPLEX]; ethnl_update_u8(&lsettings->autoneg, tb[ETHTOOL_A_LINKMODES_AUTONEG], mod); + + if (req_lanes) { + u32 lanes_cfg = nla_get_u32(tb[ETHTOOL_A_LINKMODES_LANES]); + + if (!ethnl_validate_lanes_cfg(lanes_cfg)) { + NL_SET_ERR_MSG_ATTR(info->extack, + tb[ETHTOOL_A_LINKMODES_LANES], + "lanes value is invalid"); + return -EINVAL; + } + + /* If autoneg is off and lanes parameter is not supported by the + * driver, return an error. + */ + if (!lsettings->autoneg && + !(dev->ethtool_ops->capabilities & ETHTOOL_CAP_LINK_LANES_SUPPORTED)) { + NL_SET_ERR_MSG_ATTR(info->extack, + tb[ETHTOOL_A_LINKMODES_LANES], + "lanes configuration not supported by device"); + return -EOPNOTSUPP; + } + } else if (!lsettings->autoneg) { + /* If autoneg is off and lanes parameter is not passed from user, + * set the lanes parameter to UNKNOWN. + */ + ksettings->lanes = ETHTOOL_LANES_UNKNOWN; + } + ret = ethnl_update_bitset(ksettings->link_modes.advertising, __ETHTOOL_LINK_MODE_MASK_NBITS, tb[ETHTOOL_A_LINKMODES_OURS], link_mode_names, @@ -365,13 +412,15 @@ static int ethnl_update_linkmodes(struct genl_info *info, struct nlattr **tb, return ret; ethnl_update_u32(&lsettings->speed, tb[ETHTOOL_A_LINKMODES_SPEED], mod); + ethnl_update_u32(&ksettings->lanes, tb[ETHTOOL_A_LINKMODES_LANES], + mod); ethnl_update_u8(&lsettings->duplex, tb[ETHTOOL_A_LINKMODES_DUPLEX], mod); ethnl_update_u8(&lsettings->master_slave_cfg, master_slave_cfg, mod); if (!tb[ETHTOOL_A_LINKMODES_OURS] && lsettings->autoneg && - (req_speed || req_duplex) && - ethnl_auto_linkmodes(ksettings, req_speed, req_duplex)) + (req_speed || req_lanes || req_duplex) && + ethnl_auto_linkmodes(ksettings, req_speed, req_lanes, req_duplex)) *mod = true; return 0; @@ -409,7 +458,7 @@ int ethnl_set_linkmodes(struct sk_buff *skb, struct genl_info *info) goto out_ops; } - ret = ethnl_update_linkmodes(info, tb, &ksettings, &mod); + ret = ethnl_update_linkmodes(info, tb, &ksettings, &mod, dev); if (ret < 0) goto out_ops; diff --git a/net/ethtool/netlink.h b/net/ethtool/netlink.h index d8efec516d86..6eabd58d81bf 100644 --- a/net/ethtool/netlink.h +++ b/net/ethtool/netlink.h @@ -351,7 +351,7 @@ extern const struct nla_policy ethnl_strset_get_policy[ETHTOOL_A_STRSET_COUNTS_O extern const struct nla_policy ethnl_linkinfo_get_policy[ETHTOOL_A_LINKINFO_HEADER + 1]; extern const struct nla_policy ethnl_linkinfo_set_policy[ETHTOOL_A_LINKINFO_TP_MDIX_CTRL + 1]; extern const struct nla_policy ethnl_linkmodes_get_policy[ETHTOOL_A_LINKMODES_HEADER + 1]; -extern const struct nla_policy ethnl_linkmodes_set_policy[ETHTOOL_A_LINKMODES_MASTER_SLAVE_CFG + 1]; +extern const struct nla_policy ethnl_linkmodes_set_policy[ETHTOOL_A_LINKMODES_LANES + 1]; extern const struct nla_policy ethnl_linkstate_get_policy[ETHTOOL_A_LINKSTATE_HEADER + 1]; extern const struct nla_policy ethnl_debug_get_policy[ETHTOOL_A_DEBUG_HEADER + 1]; extern const struct nla_policy ethnl_debug_set_policy[ETHTOOL_A_DEBUG_MSGMASK + 1]; From patchwork Sat Oct 10 15:41:15 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ido Schimmel X-Patchwork-Id: 288639 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 632B9C433DF for ; Sat, 10 Oct 2020 22:54:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3625620795 for ; 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Sat, 10 Oct 2020 11:41:51 -0400 (EDT) From: Ido Schimmel To: netdev@vger.kernel.org Cc: davem@davemloft.net, kuba@kernel.org, jiri@nvidia.com, danieller@nvidia.com, andrew@lunn.ch, f.fainelli@gmail.com, mkubecek@suse.cz, mlxsw@nvidia.com, Ido Schimmel Subject: [PATCH net-next 2/6] ethtool: Expose the number of lanes in use Date: Sat, 10 Oct 2020 18:41:15 +0300 Message-Id: <20201010154119.3537085-3-idosch@idosch.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201010154119.3537085-1-idosch@idosch.org> References: <20201010154119.3537085-1-idosch@idosch.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Danielle Ratson Currently, ethtool does not expose how many lanes are used when the link is up. After adding a possibility to advertise or force a specific number of lanes, the lanes in use value can be either the maximum width of the port or below. Extend ethtool to expose the number of lanes currently in use for drivers that support it. For example: $ ethtool -s swp1 speed 100000 lanes 4 $ ethtool -s swp2 speed 100000 lanes 4 $ ip link set swp1 up $ ip link set swp2 up $ ethtool swp1 Settings for swp1: Supported ports: [ FIBRE Backplane ] Supported link modes: 1000baseT/Full 10000baseT/Full 1000baseKX/Full 10000baseKR/Full 10000baseR_FEC 40000baseKR4/Full 40000baseCR4/Full 40000baseSR4/Full 40000baseLR4/Full 25000baseCR/Full 25000baseKR/Full 25000baseSR/Full 50000baseCR2/Full 50000baseKR2/Full 100000baseKR4/Full 100000baseSR4/Full 100000baseCR4/Full 100000baseLR4_ER4/Full 50000baseSR2/Full 10000baseCR/Full 10000baseSR/Full 10000baseLR/Full 10000baseER/Full 50000baseKR/Full 50000baseSR/Full 50000baseCR/Full 50000baseLR_ER_FR/Full 50000baseDR/Full 100000baseKR2/Full 100000baseSR2/Full 100000baseCR2/Full 100000baseLR2_ER2_FR2/Full 100000baseDR2/Full 200000baseKR4/Full 200000baseSR4/Full 200000baseLR4_ER4_FR4/Full 200000baseDR4/Full 200000baseCR4/Full Supported pause frame use: Symmetric Receive-only Supports auto-negotiation: Yes Supported FEC modes: Not reported Advertised link modes: 1000baseT/Full 10000baseT/Full 1000baseKX/Full 1000baseKX/Full 10000baseKR/Full 10000baseR_FEC 40000baseKR4/Full 40000baseCR4/Full 40000baseSR4/Full 40000baseLR4/Full 25000baseCR/Full 25000baseKR/Full 25000baseSR/Full 50000baseCR2/Full 50000baseKR2/Full 100000baseKR4/Full 100000baseSR4/Full 100000baseCR4/Full 100000baseLR4_ER4/Full 50000baseSR2/Full 10000baseCR/Full 10000baseSR/Full 10000baseLR/Full 10000baseER/Full 200000baseKR4/Full 200000baseSR4/Full 200000baseLR4_ER4_FR4/Full 200000baseDR4/Full 200000baseCR4/Full Advertised pause frame use: No Advertised auto-negotiation: Yes Advertised FEC modes: Not reported Advertised link modes: 100000baseKR4/Full 100000baseSR4/Full 100000baseCR4/Full 100000baseLR4_ER4/Full Advertised pause frame use: No Advertised auto-negotiation: Yes Advertised FEC modes: Not reported Speed: 100000Mb/s Lanes: 4 Duplex: Full Auto-negotiation: on Port: Direct Attach Copper PHYAD: 0 Transceiver: internal Link detected: yes Signed-off-by: Danielle Ratson Reviewed-by: Jiri Pirko Signed-off-by: Ido Schimmel --- Documentation/networking/ethtool-netlink.rst | 5 +++-- net/ethtool/linkmodes.c | 5 +++++ 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/Documentation/networking/ethtool-netlink.rst b/Documentation/networking/ethtool-netlink.rst index 05073482db05..16638ee9d3f9 100644 --- a/Documentation/networking/ethtool-netlink.rst +++ b/Documentation/networking/ethtool-netlink.rst @@ -388,8 +388,8 @@ LINKMODES_GET ============= Requests link modes (supported, advertised and peer advertised) and related -information (autonegotiation status, link speed and duplex) as provided by -``ETHTOOL_GLINKSETTINGS``. The request does not use any attributes. +information (autonegotiation status, link speed, duplex and lanes) as provided +by ``ETHTOOL_GLINKSETTINGS``. The request does not use any attributes. Request contents: @@ -408,6 +408,7 @@ Kernel response contents: ``ETHTOOL_A_LINKMODES_DUPLEX`` u8 duplex mode ``ETHTOOL_A_LINKMODES_MASTER_SLAVE_CFG`` u8 Master/slave port mode ``ETHTOOL_A_LINKMODES_MASTER_SLAVE_STATE`` u8 Master/slave port state + ``ETHTOOL_A_LINKMODES_LANES`` u32 lanes ========================================== ====== ========================== For ``ETHTOOL_A_LINKMODES_OURS``, value represents advertised modes and mask diff --git a/net/ethtool/linkmodes.c b/net/ethtool/linkmodes.c index a1f02896ed8b..a940cfcd2122 100644 --- a/net/ethtool/linkmodes.c +++ b/net/ethtool/linkmodes.c @@ -43,6 +43,9 @@ static int linkmodes_prepare_data(const struct ethnl_req_info *req_base, goto out; } + if (!(dev->ethtool_ops->capabilities & ETHTOOL_CAP_LINK_LANES_SUPPORTED)) + data->ksettings.lanes = ETHTOOL_LANES_UNKNOWN; + data->peer_empty = bitmap_empty(data->ksettings.link_modes.lp_advertising, __ETHTOOL_LINK_MODE_MASK_NBITS); @@ -63,6 +66,7 @@ static int linkmodes_reply_size(const struct ethnl_req_info *req_base, len = nla_total_size(sizeof(u8)) /* LINKMODES_AUTONEG */ + nla_total_size(sizeof(u32)) /* LINKMODES_SPEED */ + + nla_total_size(sizeof(u32)) /* LINKMODES_LANES */ + nla_total_size(sizeof(u8)) /* LINKMODES_DUPLEX */ + 0; ret = ethnl_bitset_size(ksettings->link_modes.advertising, @@ -120,6 +124,7 @@ static int linkmodes_fill_reply(struct sk_buff *skb, } if (nla_put_u32(skb, ETHTOOL_A_LINKMODES_SPEED, lsettings->speed) || + nla_put_u32(skb, ETHTOOL_A_LINKMODES_LANES, ksettings->lanes) || nla_put_u8(skb, ETHTOOL_A_LINKMODES_DUPLEX, lsettings->duplex)) return -EMSGSIZE; From patchwork Sat Oct 10 15:41:16 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ido Schimmel X-Patchwork-Id: 270166 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DE92EC433DF for ; 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Sat, 10 Oct 2020 11:41:52 -0400 (EDT) From: Ido Schimmel To: netdev@vger.kernel.org Cc: davem@davemloft.net, kuba@kernel.org, jiri@nvidia.com, danieller@nvidia.com, andrew@lunn.ch, f.fainelli@gmail.com, mkubecek@suse.cz, mlxsw@nvidia.com, Ido Schimmel Subject: [PATCH net-next 3/6] mlxsw: ethtool: Remove max lanes filtering Date: Sat, 10 Oct 2020 18:41:16 +0300 Message-Id: <20201010154119.3537085-4-idosch@idosch.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201010154119.3537085-1-idosch@idosch.org> References: <20201010154119.3537085-1-idosch@idosch.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Danielle Ratson Currently, when a speed can be supported by different number of lanes, the supported link modes bitmask contains only link modes with a single number of lanes. This was done in order to prevent auto negotiation on number of lanes after 50G-1-lane and 100G-2-lanes link modes were introduced. For example, if a port's max width is 4, only link modes with 4 lanes will be presented as supported by that port, so 100G is always achieved by 4 lanes of 25G. After the previous patches that allow selection of the number of lanes, auto negotiation on number of lanes becomes practical. Remove that filtering of the maximum number of lanes supported link modes, so indeed all the supported and advertised link modes will be shown. Signed-off-by: Danielle Ratson Reviewed-by: Jiri Pirko Signed-off-by: Ido Schimmel --- .../net/ethernet/mellanox/mlxsw/spectrum.h | 4 +-- .../mellanox/mlxsw/spectrum_ethtool.c | 33 ++++++++----------- 2 files changed, 15 insertions(+), 22 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h index 3e26eb6cb140..7fdebecdc1f2 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h @@ -327,13 +327,13 @@ struct mlxsw_sp_port_type_speed_ops { u32 ptys_eth_proto, struct ethtool_link_ksettings *cmd); void (*from_ptys_link)(struct mlxsw_sp *mlxsw_sp, u32 ptys_eth_proto, - u8 width, unsigned long *mode); + unsigned long *mode); u32 (*from_ptys_speed)(struct mlxsw_sp *mlxsw_sp, u32 ptys_eth_proto); void (*from_ptys_speed_duplex)(struct mlxsw_sp *mlxsw_sp, bool carrier_ok, u32 ptys_eth_proto, struct ethtool_link_ksettings *cmd); int (*ptys_max_speed)(struct mlxsw_sp_port *mlxsw_sp_port, u32 *p_max_speed); - u32 (*to_ptys_advert_link)(struct mlxsw_sp *mlxsw_sp, u8 width, + u32 (*to_ptys_advert_link)(struct mlxsw_sp *mlxsw_sp, const struct ethtool_link_ksettings *cmd); u32 (*to_ptys_speed)(struct mlxsw_sp *mlxsw_sp, u8 width, u32 speed); void (*reg_ptys_eth_pack)(struct mlxsw_sp *mlxsw_sp, char *payload, diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ethtool.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ethtool.c index 2096b6478958..085e5a0cb654 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ethtool.c @@ -858,7 +858,7 @@ static int mlxsw_sp_port_get_sset_count(struct net_device *dev, int sset) static void mlxsw_sp_port_get_link_supported(struct mlxsw_sp *mlxsw_sp, u32 eth_proto_cap, - u8 width, struct ethtool_link_ksettings *cmd) + struct ethtool_link_ksettings *cmd) { const struct mlxsw_sp_port_type_speed_ops *ops; @@ -869,13 +869,13 @@ mlxsw_sp_port_get_link_supported(struct mlxsw_sp *mlxsw_sp, u32 eth_proto_cap, ethtool_link_ksettings_add_link_mode(cmd, supported, Pause); ops->from_ptys_supported_port(mlxsw_sp, eth_proto_cap, cmd); - ops->from_ptys_link(mlxsw_sp, eth_proto_cap, width, + ops->from_ptys_link(mlxsw_sp, eth_proto_cap, cmd->link_modes.supported); } static void mlxsw_sp_port_get_link_advertise(struct mlxsw_sp *mlxsw_sp, - u32 eth_proto_admin, bool autoneg, u8 width, + u32 eth_proto_admin, bool autoneg, struct ethtool_link_ksettings *cmd) { const struct mlxsw_sp_port_type_speed_ops *ops; @@ -886,7 +886,7 @@ mlxsw_sp_port_get_link_advertise(struct mlxsw_sp *mlxsw_sp, return; ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg); - ops->from_ptys_link(mlxsw_sp, eth_proto_admin, width, + ops->from_ptys_link(mlxsw_sp, eth_proto_admin, cmd->link_modes.advertising); } @@ -960,11 +960,9 @@ static int mlxsw_sp_port_get_link_ksettings(struct net_device *dev, ops = mlxsw_sp->port_type_speed_ops; autoneg = mlxsw_sp_port->link.autoneg; - mlxsw_sp_port_get_link_supported(mlxsw_sp, eth_proto_cap, - mlxsw_sp_port->mapping.width, cmd); + mlxsw_sp_port_get_link_supported(mlxsw_sp, eth_proto_cap, cmd); - mlxsw_sp_port_get_link_advertise(mlxsw_sp, eth_proto_admin, autoneg, - mlxsw_sp_port->mapping.width, cmd); + mlxsw_sp_port_get_link_advertise(mlxsw_sp, eth_proto_admin, autoneg, cmd); cmd->base.autoneg = autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE; cmd->base.port = mlxsw_sp_port_connector_port(connector_type); @@ -997,8 +995,7 @@ mlxsw_sp_port_set_link_ksettings(struct net_device *dev, autoneg = cmd->base.autoneg == AUTONEG_ENABLE; eth_proto_new = autoneg ? - ops->to_ptys_advert_link(mlxsw_sp, mlxsw_sp_port->mapping.width, - cmd) : + ops->to_ptys_advert_link(mlxsw_sp, cmd) : ops->to_ptys_speed(mlxsw_sp, mlxsw_sp_port->mapping.width, cmd->base.speed); @@ -1198,7 +1195,7 @@ mlxsw_sp1_from_ptys_supported_port(struct mlxsw_sp *mlxsw_sp, static void mlxsw_sp1_from_ptys_link(struct mlxsw_sp *mlxsw_sp, u32 ptys_eth_proto, - u8 width, unsigned long *mode) + unsigned long *mode) { int i; @@ -1260,7 +1257,7 @@ static int mlxsw_sp1_ptys_max_speed(struct mlxsw_sp_port *mlxsw_sp_port, u32 *p_ } static u32 -mlxsw_sp1_to_ptys_advert_link(struct mlxsw_sp *mlxsw_sp, u8 width, +mlxsw_sp1_to_ptys_advert_link(struct mlxsw_sp *mlxsw_sp, const struct ethtool_link_ksettings *cmd) { u32 ptys_proto = 0; @@ -1604,14 +1601,12 @@ mlxsw_sp2_set_bit_ethtool(const struct mlxsw_sp2_port_link_mode *link_mode, static void mlxsw_sp2_from_ptys_link(struct mlxsw_sp *mlxsw_sp, u32 ptys_eth_proto, - u8 width, unsigned long *mode) + unsigned long *mode) { - u8 mask_width = mlxsw_sp_port_mask_width_get(width); int i; for (i = 0; i < MLXSW_SP2_PORT_LINK_MODE_LEN; i++) { - if ((ptys_eth_proto & mlxsw_sp2_port_link_mode[i].mask) && - (mask_width & mlxsw_sp2_port_link_mode[i].mask_width)) + if (ptys_eth_proto & mlxsw_sp2_port_link_mode[i].mask) mlxsw_sp2_set_bit_ethtool(&mlxsw_sp2_port_link_mode[i], mode); } @@ -1683,16 +1678,14 @@ mlxsw_sp2_test_bit_ethtool(const struct mlxsw_sp2_port_link_mode *link_mode, } static u32 -mlxsw_sp2_to_ptys_advert_link(struct mlxsw_sp *mlxsw_sp, u8 width, +mlxsw_sp2_to_ptys_advert_link(struct mlxsw_sp *mlxsw_sp, const struct ethtool_link_ksettings *cmd) { - u8 mask_width = mlxsw_sp_port_mask_width_get(width); u32 ptys_proto = 0; int i; for (i = 0; i < MLXSW_SP2_PORT_LINK_MODE_LEN; i++) { - if ((mask_width & mlxsw_sp2_port_link_mode[i].mask_width) && - mlxsw_sp2_test_bit_ethtool(&mlxsw_sp2_port_link_mode[i], + if (mlxsw_sp2_test_bit_ethtool(&mlxsw_sp2_port_link_mode[i], cmd->link_modes.advertising)) ptys_proto |= mlxsw_sp2_port_link_mode[i].mask; } From patchwork Sat Oct 10 15:41:17 2020 Content-Type: text/plain; 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Sat, 10 Oct 2020 11:41:54 -0400 (EDT) From: Ido Schimmel To: netdev@vger.kernel.org Cc: davem@davemloft.net, kuba@kernel.org, jiri@nvidia.com, danieller@nvidia.com, andrew@lunn.ch, f.fainelli@gmail.com, mkubecek@suse.cz, mlxsw@nvidia.com, Ido Schimmel Subject: [PATCH net-next 4/6] mlxsw: ethtool: Add support for setting lanes when autoneg is off Date: Sat, 10 Oct 2020 18:41:17 +0300 Message-Id: <20201010154119.3537085-5-idosch@idosch.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201010154119.3537085-1-idosch@idosch.org> References: <20201010154119.3537085-1-idosch@idosch.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Danielle Ratson Currently, when auto negotiation is set to off, the user can force a specific speed or both speed and duplex. The user cannot influence the number of lanes that will be forced. Add support for setting speed along with lanes so one would be able to choose how many lanes will be forced. When lanes parameter is not passed from user space, the default of the lanes is the width of the port. Signed-off-by: Danielle Ratson Reviewed-by: Jiri Pirko Signed-off-by: Ido Schimmel --- .../net/ethernet/mellanox/mlxsw/spectrum.h | 3 +- .../mellanox/mlxsw/spectrum_ethtool.c | 40 +++++++++++++------ 2 files changed, 30 insertions(+), 13 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h index 7fdebecdc1f2..b8e91792ac08 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h @@ -335,7 +335,8 @@ struct mlxsw_sp_port_type_speed_ops { int (*ptys_max_speed)(struct mlxsw_sp_port *mlxsw_sp_port, u32 *p_max_speed); u32 (*to_ptys_advert_link)(struct mlxsw_sp *mlxsw_sp, const struct ethtool_link_ksettings *cmd); - u32 (*to_ptys_speed)(struct mlxsw_sp *mlxsw_sp, u8 width, u32 speed); + u32 (*to_ptys_speed_lanes)(struct mlxsw_sp *mlxsw_sp, u8 width, + const struct ethtool_link_ksettings *cmd); void (*reg_ptys_eth_pack)(struct mlxsw_sp *mlxsw_sp, char *payload, u8 local_port, u32 proto_admin, bool autoneg); void (*reg_ptys_eth_unpack)(struct mlxsw_sp *mlxsw_sp, char *payload, diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ethtool.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ethtool.c index 085e5a0cb654..8a1b5d437822 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ethtool.c @@ -996,12 +996,12 @@ mlxsw_sp_port_set_link_ksettings(struct net_device *dev, autoneg = cmd->base.autoneg == AUTONEG_ENABLE; eth_proto_new = autoneg ? ops->to_ptys_advert_link(mlxsw_sp, cmd) : - ops->to_ptys_speed(mlxsw_sp, mlxsw_sp_port->mapping.width, - cmd->base.speed); + ops->to_ptys_speed_lanes(mlxsw_sp, mlxsw_sp_port->mapping.width, + cmd); eth_proto_new = eth_proto_new & eth_proto_cap; if (!eth_proto_new) { - netdev_err(dev, "No supported speed requested\n"); + netdev_err(dev, "No supported speed or lanes requested\n"); return -EINVAL; } @@ -1060,6 +1060,7 @@ mlxsw_sp_get_ts_info(struct net_device *netdev, struct ethtool_ts_info *info) } const struct ethtool_ops mlxsw_sp_port_ethtool_ops = { + .capabilities = ETHTOOL_CAP_LINK_LANES_SUPPORTED, .get_drvinfo = mlxsw_sp_port_get_drvinfo, .get_link = ethtool_op_get_link, .get_link_ext_state = mlxsw_sp_port_get_link_ext_state, @@ -1271,14 +1272,17 @@ mlxsw_sp1_to_ptys_advert_link(struct mlxsw_sp *mlxsw_sp, return ptys_proto; } -static u32 mlxsw_sp1_to_ptys_speed(struct mlxsw_sp *mlxsw_sp, u8 width, - u32 speed) +static u32 mlxsw_sp1_to_ptys_speed_lanes(struct mlxsw_sp *mlxsw_sp, u8 width, + const struct ethtool_link_ksettings *cmd) { u32 ptys_proto = 0; int i; + if (cmd->lanes > width) + return ptys_proto; + for (i = 0; i < MLXSW_SP1_PORT_LINK_MODE_LEN; i++) { - if (speed == mlxsw_sp1_port_link_mode[i].speed) + if (cmd->base.speed == mlxsw_sp1_port_link_mode[i].speed) ptys_proto |= mlxsw_sp1_port_link_mode[i].mask; } return ptys_proto; @@ -1307,7 +1311,7 @@ const struct mlxsw_sp_port_type_speed_ops mlxsw_sp1_port_type_speed_ops = { .from_ptys_speed_duplex = mlxsw_sp1_from_ptys_speed_duplex, .ptys_max_speed = mlxsw_sp1_ptys_max_speed, .to_ptys_advert_link = mlxsw_sp1_to_ptys_advert_link, - .to_ptys_speed = mlxsw_sp1_to_ptys_speed, + .to_ptys_speed_lanes = mlxsw_sp1_to_ptys_speed_lanes, .reg_ptys_eth_pack = mlxsw_sp1_reg_ptys_eth_pack, .reg_ptys_eth_unpack = mlxsw_sp1_reg_ptys_eth_unpack, }; @@ -1692,16 +1696,28 @@ mlxsw_sp2_to_ptys_advert_link(struct mlxsw_sp *mlxsw_sp, return ptys_proto; } -static u32 mlxsw_sp2_to_ptys_speed(struct mlxsw_sp *mlxsw_sp, - u8 width, u32 speed) +static u32 mlxsw_sp2_to_ptys_speed_lanes(struct mlxsw_sp *mlxsw_sp, u8 width, + const struct ethtool_link_ksettings *cmd) { u8 mask_width = mlxsw_sp_port_mask_width_get(width); u32 ptys_proto = 0; + u8 mask_cmp; int i; + if (cmd->lanes > width) + return ptys_proto; + + if (cmd->lanes == ETHTOOL_LANES_UNKNOWN) + /* If number of lanes was not set by user space, force lanes to + * be width, so the number of lanes won't be negotiated. + */ + mask_cmp = mask_width; + else + mask_cmp = mlxsw_sp_port_mask_width_get(cmd->lanes); + for (i = 0; i < MLXSW_SP2_PORT_LINK_MODE_LEN; i++) { - if ((speed == mlxsw_sp2_port_link_mode[i].speed) && - (mask_width & mlxsw_sp2_port_link_mode[i].mask_width)) + if (cmd->base.speed == mlxsw_sp2_port_link_mode[i].speed && + (mask_cmp & mlxsw_sp2_port_link_mode[i].mask_width)) ptys_proto |= mlxsw_sp2_port_link_mode[i].mask; } return ptys_proto; @@ -1731,7 +1747,7 @@ const struct mlxsw_sp_port_type_speed_ops mlxsw_sp2_port_type_speed_ops = { .from_ptys_speed_duplex = mlxsw_sp2_from_ptys_speed_duplex, .ptys_max_speed = mlxsw_sp2_ptys_max_speed, .to_ptys_advert_link = mlxsw_sp2_to_ptys_advert_link, - .to_ptys_speed = mlxsw_sp2_to_ptys_speed, + .to_ptys_speed_lanes = mlxsw_sp2_to_ptys_speed_lanes, .reg_ptys_eth_pack = mlxsw_sp2_reg_ptys_eth_pack, .reg_ptys_eth_unpack = mlxsw_sp2_reg_ptys_eth_unpack, }; From patchwork Sat Oct 10 15:41:18 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ido Schimmel X-Patchwork-Id: 288640 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 86BD1C433DF for ; Sat, 10 Oct 2020 22:54:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 46CF320795 for ; Sat, 10 Oct 2020 22:54:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388532AbgJJWyF (ORCPT ); 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Sat, 10 Oct 2020 11:41:56 -0400 (EDT) From: Ido Schimmel To: netdev@vger.kernel.org Cc: davem@davemloft.net, kuba@kernel.org, jiri@nvidia.com, danieller@nvidia.com, andrew@lunn.ch, f.fainelli@gmail.com, mkubecek@suse.cz, mlxsw@nvidia.com, Ido Schimmel Subject: [PATCH net-next 5/6] mlxsw: ethtool: Expose the number of lanes in use Date: Sat, 10 Oct 2020 18:41:18 +0300 Message-Id: <20201010154119.3537085-6-idosch@idosch.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201010154119.3537085-1-idosch@idosch.org> References: <20201010154119.3537085-1-idosch@idosch.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Danielle Ratson Currently, the driver does not expose how many lanes are used when the link is up. Extract the lanes information from the device and expose it to ethtool. Signed-off-by: Danielle Ratson Reviewed-by: Jiri Pirko Signed-off-by: Ido Schimmel --- .../net/ethernet/mellanox/mlxsw/spectrum.h | 6 +- .../mellanox/mlxsw/spectrum_ethtool.c | 83 ++++++++++++++++--- 2 files changed, 74 insertions(+), 15 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h index b8e91792ac08..84aee7d08ab4 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h @@ -329,9 +329,9 @@ struct mlxsw_sp_port_type_speed_ops { void (*from_ptys_link)(struct mlxsw_sp *mlxsw_sp, u32 ptys_eth_proto, unsigned long *mode); u32 (*from_ptys_speed)(struct mlxsw_sp *mlxsw_sp, u32 ptys_eth_proto); - void (*from_ptys_speed_duplex)(struct mlxsw_sp *mlxsw_sp, - bool carrier_ok, u32 ptys_eth_proto, - struct ethtool_link_ksettings *cmd); + void (*from_ptys_speed_lanes_duplex)(struct mlxsw_sp *mlxsw_sp, + bool carrier_ok, u32 ptys_eth_proto, + struct ethtool_link_ksettings *cmd); int (*ptys_max_speed)(struct mlxsw_sp_port *mlxsw_sp_port, u32 *p_max_speed); u32 (*to_ptys_advert_link)(struct mlxsw_sp *mlxsw_sp, const struct ethtool_link_ksettings *cmd); diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ethtool.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ethtool.c index 8a1b5d437822..6675d5e0d9d4 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ethtool.c @@ -966,8 +966,8 @@ static int mlxsw_sp_port_get_link_ksettings(struct net_device *dev, cmd->base.autoneg = autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE; cmd->base.port = mlxsw_sp_port_connector_port(connector_type); - ops->from_ptys_speed_duplex(mlxsw_sp, netif_carrier_ok(dev), - eth_proto_oper, cmd); + ops->from_ptys_speed_lanes_duplex(mlxsw_sp, netif_carrier_ok(dev), + eth_proto_oper, cmd); return 0; } @@ -1081,6 +1081,7 @@ struct mlxsw_sp1_port_link_mode { enum ethtool_link_mode_bit_indices mask_ethtool; u32 mask; u32 speed; + u32 width; }; static const struct mlxsw_sp1_port_link_mode mlxsw_sp1_port_link_mode[] = { @@ -1089,12 +1090,14 @@ static const struct mlxsw_sp1_port_link_mode mlxsw_sp1_port_link_mode[] = { MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX, .mask_ethtool = ETHTOOL_LINK_MODE_1000baseKX_Full_BIT, .speed = SPEED_1000, + .width = ETHTOOL_LANES_1, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CX4 | MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4, .mask_ethtool = ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT, .speed = SPEED_10000, + .width = ETHTOOL_LANES_4, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR | @@ -1103,71 +1106,85 @@ static const struct mlxsw_sp1_port_link_mode mlxsw_sp1_port_link_mode[] = { MLXSW_REG_PTYS_ETH_SPEED_10GBASE_ER_LR, .mask_ethtool = ETHTOOL_LINK_MODE_10000baseKR_Full_BIT, .speed = SPEED_10000, + .width = ETHTOOL_LANES_1, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4, .mask_ethtool = ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT, .speed = SPEED_40000, + .width = ETHTOOL_LANES_4, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4, .mask_ethtool = ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT, .speed = SPEED_40000, + .width = ETHTOOL_LANES_4, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4, .mask_ethtool = ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT, .speed = SPEED_40000, + .width = ETHTOOL_LANES_4, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_LR4_ER4, .mask_ethtool = ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT, .speed = SPEED_40000, + .width = ETHTOOL_LANES_4, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_25GBASE_CR, .mask_ethtool = ETHTOOL_LINK_MODE_25000baseCR_Full_BIT, .speed = SPEED_25000, + .width = ETHTOOL_LANES_1, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_25GBASE_KR, .mask_ethtool = ETHTOOL_LINK_MODE_25000baseKR_Full_BIT, .speed = SPEED_25000, + .width = ETHTOOL_LANES_1, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_25GBASE_SR, .mask_ethtool = ETHTOOL_LINK_MODE_25000baseSR_Full_BIT, .speed = SPEED_25000, + .width = ETHTOOL_LANES_1, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_50GBASE_CR2, .mask_ethtool = ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT, .speed = SPEED_50000, + .width = ETHTOOL_LANES_2, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_50GBASE_KR2, .mask_ethtool = ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT, .speed = SPEED_50000, + .width = ETHTOOL_LANES_2, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_50GBASE_SR2, .mask_ethtool = ETHTOOL_LINK_MODE_50000baseSR2_Full_BIT, .speed = SPEED_50000, + .width = ETHTOOL_LANES_2, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4, .mask_ethtool = ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT, .speed = SPEED_100000, + .width = ETHTOOL_LANES_4, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4, .mask_ethtool = ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT, .speed = SPEED_100000, + .width = ETHTOOL_LANES_4, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4, .mask_ethtool = ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT, .speed = SPEED_100000, + .width = ETHTOOL_LANES_4, }, }; @@ -1220,20 +1237,36 @@ mlxsw_sp1_from_ptys_speed(struct mlxsw_sp *mlxsw_sp, u32 ptys_eth_proto) return SPEED_UNKNOWN; } +static u32 +mlxsw_sp1_from_ptys_lanes(struct mlxsw_sp *mlxsw_sp, u32 ptys_eth_proto) +{ + int i; + + for (i = 0; i < MLXSW_SP1_PORT_LINK_MODE_LEN; i++) { + if (ptys_eth_proto & mlxsw_sp1_port_link_mode[i].mask) + return mlxsw_sp1_port_link_mode[i].width; + } + + return ETHTOOL_LANES_UNKNOWN; +} + static void -mlxsw_sp1_from_ptys_speed_duplex(struct mlxsw_sp *mlxsw_sp, bool carrier_ok, - u32 ptys_eth_proto, - struct ethtool_link_ksettings *cmd) +mlxsw_sp1_from_ptys_speed_lanes_duplex(struct mlxsw_sp *mlxsw_sp, bool carrier_ok, + u32 ptys_eth_proto, + struct ethtool_link_ksettings *cmd) { cmd->base.speed = SPEED_UNKNOWN; + cmd->lanes = ETHTOOL_LANES_UNKNOWN; cmd->base.duplex = DUPLEX_UNKNOWN; if (!carrier_ok) return; cmd->base.speed = mlxsw_sp1_from_ptys_speed(mlxsw_sp, ptys_eth_proto); - if (cmd->base.speed != SPEED_UNKNOWN) + if (cmd->base.speed != SPEED_UNKNOWN) { + cmd->lanes = mlxsw_sp1_from_ptys_lanes(mlxsw_sp, ptys_eth_proto); cmd->base.duplex = DUPLEX_FULL; + } } static int mlxsw_sp1_ptys_max_speed(struct mlxsw_sp_port *mlxsw_sp_port, u32 *p_max_speed) @@ -1308,7 +1341,7 @@ const struct mlxsw_sp_port_type_speed_ops mlxsw_sp1_port_type_speed_ops = { .from_ptys_supported_port = mlxsw_sp1_from_ptys_supported_port, .from_ptys_link = mlxsw_sp1_from_ptys_link, .from_ptys_speed = mlxsw_sp1_from_ptys_speed, - .from_ptys_speed_duplex = mlxsw_sp1_from_ptys_speed_duplex, + .from_ptys_speed_lanes_duplex = mlxsw_sp1_from_ptys_speed_lanes_duplex, .ptys_max_speed = mlxsw_sp1_ptys_max_speed, .to_ptys_advert_link = mlxsw_sp1_to_ptys_advert_link, .to_ptys_speed_lanes = mlxsw_sp1_to_ptys_speed_lanes, @@ -1629,20 +1662,46 @@ mlxsw_sp2_from_ptys_speed(struct mlxsw_sp *mlxsw_sp, u32 ptys_eth_proto) return SPEED_UNKNOWN; } +static u32 +mlxsw_sp2_from_ptys_lanes(struct mlxsw_sp *mlxsw_sp, u32 ptys_eth_proto) +{ + u8 width; + int i; + + for (i = 0; i < MLXSW_SP2_PORT_LINK_MODE_LEN; i++) { + if (ptys_eth_proto & mlxsw_sp2_port_link_mode[i].mask) { + width = mlxsw_sp2_port_link_mode[i].mask_width; + if (width & MLXSW_SP_PORT_MASK_WIDTH_1X) + return ETHTOOL_LANES_1; + else if (width & MLXSW_SP_PORT_MASK_WIDTH_2X) + return ETHTOOL_LANES_2; + else if (width & MLXSW_SP_PORT_MASK_WIDTH_4X) + return ETHTOOL_LANES_4; + else if (width & MLXSW_SP_PORT_MASK_WIDTH_8X) + return ETHTOOL_LANES_8; + } + } + + return ETHTOOL_LANES_UNKNOWN; +} + static void -mlxsw_sp2_from_ptys_speed_duplex(struct mlxsw_sp *mlxsw_sp, bool carrier_ok, - u32 ptys_eth_proto, - struct ethtool_link_ksettings *cmd) +mlxsw_sp2_from_ptys_speed_lanes_duplex(struct mlxsw_sp *mlxsw_sp, bool carrier_ok, + u32 ptys_eth_proto, + struct ethtool_link_ksettings *cmd) { cmd->base.speed = SPEED_UNKNOWN; + cmd->lanes = ETHTOOL_LANES_UNKNOWN; cmd->base.duplex = DUPLEX_UNKNOWN; if (!carrier_ok) return; cmd->base.speed = mlxsw_sp2_from_ptys_speed(mlxsw_sp, ptys_eth_proto); - if (cmd->base.speed != SPEED_UNKNOWN) + if (cmd->base.speed != SPEED_UNKNOWN) { + cmd->lanes = mlxsw_sp2_from_ptys_lanes(mlxsw_sp, ptys_eth_proto); cmd->base.duplex = DUPLEX_FULL; + } } static int mlxsw_sp2_ptys_max_speed(struct mlxsw_sp_port *mlxsw_sp_port, u32 *p_max_speed) @@ -1744,7 +1803,7 @@ const struct mlxsw_sp_port_type_speed_ops mlxsw_sp2_port_type_speed_ops = { .from_ptys_supported_port = mlxsw_sp2_from_ptys_supported_port, .from_ptys_link = mlxsw_sp2_from_ptys_link, .from_ptys_speed = mlxsw_sp2_from_ptys_speed, - .from_ptys_speed_duplex = mlxsw_sp2_from_ptys_speed_duplex, + .from_ptys_speed_lanes_duplex = mlxsw_sp2_from_ptys_speed_lanes_duplex, .ptys_max_speed = mlxsw_sp2_ptys_max_speed, .to_ptys_advert_link = mlxsw_sp2_to_ptys_advert_link, .to_ptys_speed_lanes = mlxsw_sp2_to_ptys_speed_lanes, From patchwork Sat Oct 10 15:41:19 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ido Schimmel X-Patchwork-Id: 270164 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7E61EC43457 for ; 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Sat, 10 Oct 2020 11:41:58 -0400 (EDT) From: Ido Schimmel To: netdev@vger.kernel.org Cc: davem@davemloft.net, kuba@kernel.org, jiri@nvidia.com, danieller@nvidia.com, andrew@lunn.ch, f.fainelli@gmail.com, mkubecek@suse.cz, mlxsw@nvidia.com, Ido Schimmel Subject: [PATCH net-next 6/6] net: selftests: Add lanes setting test Date: Sat, 10 Oct 2020 18:41:19 +0300 Message-Id: <20201010154119.3537085-7-idosch@idosch.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201010154119.3537085-1-idosch@idosch.org> References: <20201010154119.3537085-1-idosch@idosch.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Danielle Ratson Test that setting lanes parameter is working. First, test that when setting only speed, max width is chosen as the number of lanes. Second, set max speed and max lanes in the list of advertised link modes, and then try to set max speed with the lanes below max lanes if exists in the list. And last, test that setting number of lanes larger than max lanes fails. Do the above for both autoneg on and off. $ ./ethtool_lanes.sh TEST: When no lanes setting, max width is set [ OK ] TEST: 4 lanes is autonegotiated [ OK ] TEST: Lanes number larger then max_width is not set [ OK ] TEST: Autoneg off, 4 lanes detected during force mode [ OK ] TEST: Lanes number larger then max width is not set [ OK ] Signed-off-by: Danielle Ratson Signed-off-by: Ido Schimmel --- .../selftests/net/forwarding/ethtool_lanes.sh | 224 ++++++++++++++++++ .../selftests/net/forwarding/ethtool_lib.sh | 34 +++ tools/testing/selftests/net/forwarding/lib.sh | 28 +++ 3 files changed, 286 insertions(+) create mode 100755 tools/testing/selftests/net/forwarding/ethtool_lanes.sh diff --git a/tools/testing/selftests/net/forwarding/ethtool_lanes.sh b/tools/testing/selftests/net/forwarding/ethtool_lanes.sh new file mode 100755 index 000000000000..33457505df85 --- /dev/null +++ b/tools/testing/selftests/net/forwarding/ethtool_lanes.sh @@ -0,0 +1,224 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +ALL_TESTS=" + max_width_no_lanes_set + autoneg + autoneg_force_mode +" + +NUM_NETIFS=2 +: ${TIMEOUT:=30000} # ms +source lib.sh +source ethtool_lib.sh + +setup_prepare() +{ + swp1=${NETIFS[p1]} + swp2=${NETIFS[p2]} + + ip link set dev $swp1 up + ip link set dev $swp2 up + + busywait "$TIMEOUT" wait_for_port_up ethtool $swp2 + check_err $? "ports did not come up" + + local chosen_lanes=$(ethtool $swp1 | grep 'Lanes:') + chosen_lanes=${chosen_lanes#*"Lanes: "} + if [[ $chosen_lanes == "Unknown!" ]]; then + log_test "SKIP: driver does not support lanes setting" + exit 1 + fi + + ip link set dev $swp2 down + ip link set dev $swp1 down +} + +check_lanes() +{ + local dev=$1; shift + local lanes=$1; shift + local max_speed=$1; shift + local chosen_lanes + + chosen_lanes=$(ethtool $dev | grep 'Lanes:') + chosen_lanes=${chosen_lanes#*"Lanes: "} + + ((chosen_lanes == lanes)) + check_err $? "swp1 advertise $max_speed and $lanes, devs sync to $chosen_lanes" +} + +check_unsupported_lanes() +{ + local dev=$1; shift + local max_speed=$1; shift + local max_lanes=$1; shift + local autoneg=$1; shift + local autoneg_str="" + + local unsupported_lanes=$((max_lanes *= 2)) + + if [[ $autoneg -eq 0 ]]; then + autoneg_str="autoneg off" + fi + + ethtool -s $swp1 speed $max_speed lanes $unsupported_lanes $autoneg_str &> /dev/null + check_fail $? "Unsuccessful $unsupported_lanes lanes setting was expected" +} + +max_speed_and_lanes_get() +{ + local dev=$1; shift + local arr=("$@") + local max_lanes + local max_speed + local -a lanes_arr + local -a speeds_arr + local -a max_values + + for ((i=0; i<${#arr[@]}; i+=2)); do + speeds_arr+=("${arr[$i]}") + lanes_arr+=("${arr[i+1]}") + done + + max_values+=($(get_max "${speeds_arr[@]}")) + max_values+=($(get_max "${lanes_arr[@]}")) + + echo ${max_values[@]} +} + +search_linkmode() +{ + local speed=$1; shift + local lanes=$1; shift + local arr=("$@") + + for ((i=0; i<${#arr[@]}; i+=2)); do + if [[ $speed -eq ${arr[$i]} && $lanes -eq ${arr[i+1]} ]]; then + return 1 + fi + done + return 0 +} + +max_width_no_lanes_set() +{ + local max_speed + local chosen_lanes + local max_lanes_for_speed=0 + + local -a linkmodes_params=($(dev_linkmodes_params_get $swp1 1)) + local -a max_values=($(max_speed_and_lanes_get $swp1 "${linkmodes_params[@]}")) + max_speed=${max_values[0]} + + ethtool_set $swp1 speed $max_speed + ip link set dev $swp1 up + ip link set dev $swp2 up + + busywait "$TIMEOUT" wait_for_port_up ethtool $swp2 + check_err $? "ports did not come up" + + chosen_lanes=$(ethtool $swp1 | grep 'Lanes:') + chosen_lanes=${chosen_lanes#*"Lanes: "} + + for ((i=0; i<${#linkmodes_params[@]}; i+=2)); do + if [[ $max_speed == ${linkmodes_params[$i]} ]]; then + if [[ ${linkmodes_params[i+1]} -gt $max_lanes_for_speed ]]; then + max_lanes_for_speed=${linkmodes_params[i+1]} + fi + fi + done + + (( chosen_lanes == max_lanes_for_speed )) + check_err $? "devs did not sync to max width $max_lanes_for_speed" + + log_test "When no lanes setting, max width is set" + + ip link set dev $swp2 down + ip link set dev $swp1 down +} + +autoneg() +{ + RET=0 + + local lanes + local max_speed + local max_lanes + + local -a linkmodes_params=($(dev_linkmodes_params_get $swp1 1)) + local -a max_values=($(max_speed_and_lanes_get $swp1 "${linkmodes_params[@]}")) + max_speed=${max_values[0]} + max_lanes=${max_values[1]} + + lanes=$max_lanes + + while [[ $lanes -ge 1 ]]; do + search_linkmode $max_speed $lanes "${linkmodes_params[@]}" + if [[ $? -eq 1 ]]; then + ethtool_set $swp1 speed $max_speed lanes $lanes + ip link set dev $swp1 up + ip link set dev $swp2 up + busywait "$TIMEOUT" wait_for_port_up ethtool $swp2 + check_err $? "ports did not come up" + + check_lanes $swp1 $lanes $max_speed + log_test "$lanes lanes is autonegotiated" + fi + let $((lanes /= 2)) + done + + check_unsupported_lanes $swp1 $max_speed $max_lanes 1 + log_test "Lanes number larger then max_width is not set" + + ip link set dev $swp2 down + ip link set dev $swp1 down +} + +autoneg_force_mode() +{ + RET=0 + + local lanes + local max_speed + local max_lanes + + local -a linkmodes_params=($(dev_linkmodes_params_get $swp1 1)) + local -a max_values=($(max_speed_and_lanes_get $swp1 "${linkmodes_params[@]}")) + max_speed=${max_values[0]} + max_lanes=${max_values[1]} + + lanes=$max_lanes + + while [[ $lanes -ge 1 ]]; do + search_linkmode $max_speed $lanes "${linkmodes_params[@]}" + if [[ $? -eq 1 ]]; then + ethtool_set $swp1 speed $max_speed lanes $lanes autoneg off + ethtool_set $swp2 speed $max_speed lanes $lanes autoneg off + ip link set dev $swp1 up + ip link set dev $swp2 up + busywait "$TIMEOUT" wait_for_port_up ethtool $swp2 + check_err $? "ports did not come up" + + check_lanes $swp1 $lanes $max_speed + log_test "Autoneg off, $lanes lanes detected during force mode" + fi + let $((lanes /= 2)) + done + + check_unsupported_lanes $swp1 $max_speed $max_lanes 0 + log_test "Lanes number larger then max width is not set" + + ip link set dev $swp2 down + ip link set dev $swp1 down + + ethtool -s $swp2 autoneg on + ethtool -s $swp1 autoneg on +} + +check_ethtool_lanes_support +setup_prepare + +tests_run + +exit $EXIT_STATUS diff --git a/tools/testing/selftests/net/forwarding/ethtool_lib.sh b/tools/testing/selftests/net/forwarding/ethtool_lib.sh index 9188e624dec0..b9bfb45085af 100644 --- a/tools/testing/selftests/net/forwarding/ethtool_lib.sh +++ b/tools/testing/selftests/net/forwarding/ethtool_lib.sh @@ -22,6 +22,40 @@ ethtool_set() check_err $out "error in configuration. $cmd" } +dev_linkmodes_params_get() +{ + local dev=$1; shift + local adver=$1; shift + local -a linkmodes_params + local param_count + local arr + + if (($adver)); then + mode="Advertised link modes" + else + mode="Supported link modes" + fi + + local -a dev_linkmodes=($(dev_speeds_get $dev 1 $adver)) + for ((i=0; i<${#dev_linkmodes[@]}; i++)); do + linkmodes_params[$i]=$(echo -e "${dev_linkmodes[$i]}" | \ + # Replaces all non numbers with spaces + sed -e 's/[^0-9]/ /g' | \ + # Squeeze spaces in sequence to 1 space + tr -s ' ') + # Count how many numbers were found in the linkmode + param_count=$(echo "${linkmodes_params[$i]}" | wc -w) + if [[ $param_count -eq 1 ]]; then + linkmodes_params[$i]="${linkmodes_params[$i]} 1" + elif [[ $param_count -ge 3 ]]; then + arr=(${linkmodes_params[$i]}) + # Take only first two params + linkmodes_params[$i]=$(echo "${arr[@]:0:2}") + fi + done + echo ${linkmodes_params[@]} +} + dev_speeds_get() { local dev=$1; shift diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh index 927f9ba49e08..f5e1585489cf 100644 --- a/tools/testing/selftests/net/forwarding/lib.sh +++ b/tools/testing/selftests/net/forwarding/lib.sh @@ -69,6 +69,15 @@ check_tc_action_hw_stats_support() fi } +check_ethtool_lanes_support() +{ + ethtool --help 2>&1| grep lanes &> /dev/null + if [[ $? -ne 0 ]]; then + echo "SKIP: iproute2 too old; ethtool is missing lanes support" + exit 1 + fi +} + if [[ "$(id -u)" -ne 0 ]]; then echo "SKIP: need root privileges" exit 0 @@ -263,6 +272,20 @@ not() [[ $? != 0 ]] } +get_max() +{ + local arr=("$@") + + max=${arr[0]} + for cur in ${arr[@]}; do + if [[ $cur -gt $max ]]; then + max=$cur + fi + done + + echo $max +} + grep_bridge_fdb() { local addr=$1; shift @@ -279,6 +302,11 @@ grep_bridge_fdb() $@ | grep $addr | grep $flag "$word" } +wait_for_port_up() +{ + "$@" | grep -q "Link detected: yes" +} + wait_for_offload() { "$@" | grep -q offload