From patchwork Fri Jun 9 21:16:20 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dave Ertman X-Patchwork-Id: 1793237 X-Patchwork-Delegate: anthony.l.nguyen@intel.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=osuosl.org (client-ip=2605:bc80:3010::136; helo=smtp3.osuosl.org; envelope-from=intel-wired-lan-bounces@osuosl.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=osuosl.org header.i=@osuosl.org header.a=rsa-sha256 header.s=default header.b=2wE0C8ue; dkim-atps=neutral Received: from smtp3.osuosl.org (smtp3.osuosl.org [IPv6:2605:bc80:3010::136]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-384) server-digest SHA384) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4QdDPv5CDxz20QH for ; Sat, 10 Jun 2023 07:15:31 +1000 (AEST) Received: from localhost (localhost [127.0.0.1]) by smtp3.osuosl.org (Postfix) with ESMTP id 0232C615DA; Fri, 9 Jun 2023 21:15:30 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp3.osuosl.org 0232C615DA DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=osuosl.org; s=default; t=1686345330; bh=blnML7laZRQMunkKKESum+L+WLXqnvlEpnUThvBAXb4=; h=From:To:Date:In-Reply-To:References:Subject:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: Cc:From; b=2wE0C8ue3D8J5mav7sbBarxngN7ZpRtfdjl0Sm2yrt611lYnZ3cfecwTNndgoYSTf Ykp86WJvXLUPlSu6UD4RjCTyJq/Vn5iKUrhRfbdwDOUfsNblZ3IVdNFvtgS4RJI46n IUyLXnZ14/6NzqGozqi5XMiL/3pNg1GRNM1wMbTJQEWLUUJ0Y/XGgPCFyyCsdsBqJR IzTeofl1XubyAS/eyyFzvjH7c+hekoJWoEwtDWpoUtPEHFDQk0JkC1U9i5xKg+yMrW V9umtLcjX6L/3Y60fd0A5jl+JHM9PaGZ3WRIkdPm2BgImdMPUZIZY+MFGVNrCkvVq3 vltAAzgAV5RmQ== X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp3.osuosl.org ([127.0.0.1]) by localhost (smtp3.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id rQcP24AuBFZE; Fri, 9 Jun 2023 21:15:27 +0000 (UTC) Received: from ash.osuosl.org (ash.osuosl.org [140.211.166.34]) by smtp3.osuosl.org (Postfix) with ESMTP id 918136163A; Fri, 9 Jun 2023 21:15:27 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp3.osuosl.org 918136163A X-Original-To: intel-wired-lan@lists.osuosl.org Delivered-To: intel-wired-lan@lists.osuosl.org Received: from smtp4.osuosl.org (smtp4.osuosl.org [140.211.166.137]) by ash.osuosl.org (Postfix) with ESMTP id 0FF411BF420 for ; Fri, 9 Jun 2023 21:14:54 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp4.osuosl.org (Postfix) with ESMTP id B1F1042582 for ; Fri, 9 Jun 2023 21:14:51 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp4.osuosl.org B1F1042582 X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp4.osuosl.org ([127.0.0.1]) by localhost (smtp4.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id p-fCvwiLvGTk for ; Fri, 9 Jun 2023 21:14:49 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.8.0 DKIM-Filter: OpenDKIM Filter v2.11.0 smtp4.osuosl.org 6DC0442592 Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by smtp4.osuosl.org (Postfix) with ESMTPS id 6DC0442592 for ; Fri, 9 Jun 2023 21:14:49 +0000 (UTC) X-IronPort-AV: E=McAfee;i="6600,9927,10736"; a="356583179" X-IronPort-AV: E=Sophos;i="6.00,230,1681196400"; d="scan'208";a="356583179" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Jun 2023 14:14:48 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10736"; a="823194632" X-IronPort-AV: E=Sophos;i="6.00,230,1681196400"; d="scan'208";a="823194632" Received: from dmert-dev.jf.intel.com ([10.166.241.14]) by fmsmga002-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Jun 2023 14:14:48 -0700 From: Dave Ertman To: intel-wired-lan@lists.osuosl.org Date: Fri, 9 Jun 2023 14:16:20 -0700 Message-Id: <20230609211626.621968-5-david.m.ertman@intel.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230609211626.621968-1-david.m.ertman@intel.com> References: <20230609211626.621968-1-david.m.ertman@intel.com> MIME-Version: 1.0 X-Mailman-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1686345289; x=1717881289; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=/RMlxiZ0TifrV70I1liZosa3RO3eSGAoD/gNciNLt4M=; b=C+FvcFpJNhTSH6Hs0jQ25jK6b1NtaI+QXE3NdzK43WXwfvvemSYkPb/7 KazbrrVzIXcRYljgM8GtDOzo3QSpjEtWyHTMhBHVVvuGZbJGwpFvEpD23 dOebTN+ApqJ7pfMfourdRRJqndMCar7lJPeGsDwqKTYxX6xRlvr4Y3yk7 cBlE08gp9G3icnorOIlK4mYYR4T3QSQ61OET6M2NHWnX8Gtf4tI8uEf5Q tNeok/ncMMI0yU6cex+Y7FubwPXOid1lnOJff8VOnyoJzIt/EQh8mVrNI ptaOEfVvGTDQeOWckB2ObZMPfSeADpeL6ZhgsrsbPgE6DmdV80AFUNGlQ g==; X-Mailman-Original-Authentication-Results: smtp4.osuosl.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=C+FvcFpJ Subject: [Intel-wired-lan] [PATCH iwl-next v4 04/10] ice: implement lag netdev event handler X-BeenThere: intel-wired-lan@osuosl.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Wired Ethernet Linux Kernel Driver Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: simon.horman@corigine.com, daniel.machon@microchip.com, netdev@vger.kernel.org Errors-To: intel-wired-lan-bounces@osuosl.org Sender: "Intel-wired-lan" The event handler for LAG will create a work item to place on the ordered workqueue to be processed. Add in defines for training packets and new recipes to be used by the switching block of the HW for LAG packet steering. Update the ice_lag struct to reflect the new processing methodology. Signed-off-by: Dave Ertman --- drivers/net/ethernet/intel/ice/ice_lag.c | 125 ++++++++++++++++++++--- drivers/net/ethernet/intel/ice/ice_lag.h | 30 +++++- 2 files changed, 141 insertions(+), 14 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_lag.c b/drivers/net/ethernet/intel/ice/ice_lag.c index 73bfc5cd8b37..529abfb904d0 100644 --- a/drivers/net/ethernet/intel/ice/ice_lag.c +++ b/drivers/net/ethernet/intel/ice/ice_lag.c @@ -56,11 +56,10 @@ static void ice_lag_set_backup(struct ice_lag *lag) */ static void ice_display_lag_info(struct ice_lag *lag) { - const char *name, *peer, *upper, *role, *bonded, *primary; + const char *name, *upper, *role, *bonded, *primary; struct device *dev = &lag->pf->pdev->dev; name = lag->netdev ? netdev_name(lag->netdev) : "unset"; - peer = lag->peer_netdev ? netdev_name(lag->peer_netdev) : "unset"; upper = lag->upper_netdev ? netdev_name(lag->upper_netdev) : "unset"; primary = lag->primary ? "TRUE" : "FALSE"; bonded = lag->bonded ? "BONDED" : "UNBONDED"; @@ -82,8 +81,8 @@ static void ice_display_lag_info(struct ice_lag *lag) role = "ERROR"; } - dev_dbg(dev, "%s %s, peer:%s, upper:%s, role:%s, primary:%s\n", name, - bonded, peer, upper, role, primary); + dev_dbg(dev, "%s %s, upper:%s, role:%s, primary:%s\n", name, bonded, + upper, role, primary); } /** @@ -198,7 +197,6 @@ ice_lag_unlink(struct ice_lag *lag, lag->upper_netdev = NULL; } - lag->peer_netdev = NULL; ice_set_rdma_cap(pf); lag->bonded = false; lag->role = ICE_LAG_NONE; @@ -288,6 +286,60 @@ static void ice_lag_changeupper_event(struct ice_lag *lag, void *ptr) ice_display_lag_info(lag); } +/** + * ice_lag_process_event - process a task assigned to the lag_wq + * @work: pointer to work_struct + */ +static void ice_lag_process_event(struct work_struct *work) +{ + struct netdev_notifier_changeupper_info *info; + struct ice_lag_work *lag_work; + struct net_device *netdev; + struct list_head *tmp, *n; + struct ice_pf *pf; + + lag_work = container_of(work, struct ice_lag_work, lag_task); + pf = lag_work->lag->pf; + + mutex_lock(&pf->lag_mutex); + lag_work->lag->netdev_head = &lag_work->netdev_list.node; + + switch (lag_work->event) { + case NETDEV_CHANGEUPPER: + info = &lag_work->info.changeupper_info; + if (ice_is_feature_supported(pf, ICE_F_SRIOV_LAG)) + ice_lag_changeupper_event(lag_work->lag, info); + break; + case NETDEV_BONDING_INFO: + ice_lag_info_event(lag_work->lag, &lag_work->info.bonding_info); + break; + case NETDEV_UNREGISTER: + if (ice_is_feature_supported(pf, ICE_F_SRIOV_LAG)) { + netdev = lag_work->info.bonding_info.info.dev; + if ((netdev == lag_work->lag->netdev || + lag_work->lag->primary) && lag_work->lag->bonded) + ice_lag_unregister(lag_work->lag, netdev); + } + break; + default: + break; + } + + /* cleanup resources allocated for this work item */ + list_for_each_safe(tmp, n, &lag_work->netdev_list.node) { + struct ice_lag_netdev_list *entry; + + entry = list_entry(tmp, struct ice_lag_netdev_list, node); + list_del(&entry->node); + kfree(entry); + } + lag_work->lag->netdev_head = NULL; + + mutex_unlock(&pf->lag_mutex); + + kfree(work); +} + /** * ice_lag_event_handler - handle LAG events from netdev * @notif_blk: notifier block registered by this netdev @@ -299,31 +351,79 @@ ice_lag_event_handler(struct notifier_block *notif_blk, unsigned long event, void *ptr) { struct net_device *netdev = netdev_notifier_info_to_dev(ptr); + struct net_device *upper_netdev; + struct ice_lag_work *lag_work; struct ice_lag *lag; - lag = container_of(notif_blk, struct ice_lag, notif_block); + if (!netif_is_ice(netdev)) + return NOTIFY_DONE; + + if (event != NETDEV_CHANGEUPPER && event != NETDEV_BONDING_INFO && + event != NETDEV_UNREGISTER) + return NOTIFY_DONE; + if (!(netdev->priv_flags & IFF_BONDING)) + return NOTIFY_DONE; + + lag = container_of(notif_blk, struct ice_lag, notif_block); if (!lag->netdev) return NOTIFY_DONE; - /* Check that the netdev is in the working namespace */ if (!net_eq(dev_net(netdev), &init_net)) return NOTIFY_DONE; + /* This memory will be freed at the end of ice_lag_process_event */ + lag_work = kzalloc(sizeof(*lag_work), GFP_KERNEL); + if (!lag_work) + return -ENOMEM; + + lag_work->event_netdev = netdev; + lag_work->lag = lag; + lag_work->event = event; + if (event == NETDEV_CHANGEUPPER) { + struct netdev_notifier_changeupper_info *info; + + info = ptr; + upper_netdev = info->upper_dev; + } else { + upper_netdev = netdev_master_upper_dev_get(netdev); + } + + INIT_LIST_HEAD(&lag_work->netdev_list.node); + if (upper_netdev) { + struct ice_lag_netdev_list *nd_list; + struct net_device *tmp_nd; + + rcu_read_lock(); + for_each_netdev_in_bond_rcu(upper_netdev, tmp_nd) { + nd_list = kzalloc(sizeof(*nd_list), GFP_KERNEL); + if (!nd_list) + break; + + nd_list->netdev = tmp_nd; + list_add(&nd_list->node, &lag_work->netdev_list.node); + } + rcu_read_unlock(); + } + switch (event) { case NETDEV_CHANGEUPPER: - ice_lag_changeupper_event(lag, ptr); + lag_work->info.changeupper_info = + *((struct netdev_notifier_changeupper_info *)ptr); break; case NETDEV_BONDING_INFO: - ice_lag_info_event(lag, ptr); - break; - case NETDEV_UNREGISTER: - ice_lag_unregister(lag, netdev); + lag_work->info.bonding_info = + *((struct netdev_notifier_bonding_info *)ptr); break; default: + lag_work->info.notifier_info = + *((struct netdev_notifier_info *)ptr); break; } + INIT_WORK(&lag_work->lag_task, ice_lag_process_event); + queue_work(ice_lag_wq, &lag_work->lag_task); + return NOTIFY_DONE; } @@ -398,7 +498,6 @@ int ice_init_lag(struct ice_pf *pf) lag->netdev = vsi->netdev; lag->role = ICE_LAG_NONE; lag->bonded = false; - lag->peer_netdev = NULL; lag->upper_netdev = NULL; lag->notif_block.notifier_call = NULL; diff --git a/drivers/net/ethernet/intel/ice/ice_lag.h b/drivers/net/ethernet/intel/ice/ice_lag.h index 2c373676c42f..a4314a46c82c 100644 --- a/drivers/net/ethernet/intel/ice/ice_lag.h +++ b/drivers/net/ethernet/intel/ice/ice_lag.h @@ -14,20 +14,48 @@ enum ice_lag_role { ICE_LAG_UNSET }; +#define ICE_LAG_INVALID_PORT 0xFF + struct ice_pf; +struct ice_vf; + +struct ice_lag_netdev_list { + struct list_head node; + struct net_device *netdev; +}; /* LAG info struct */ struct ice_lag { struct ice_pf *pf; /* backlink to PF struct */ struct net_device *netdev; /* this PF's netdev */ - struct net_device *peer_netdev; struct net_device *upper_netdev; /* upper bonding netdev */ + struct list_head *netdev_head; struct notifier_block notif_block; + s32 bond_mode; + u16 bond_swid; /* swid for primary interface */ + u8 active_port; /* lport value for the current active port */ u8 bonded:1; /* currently bonded */ u8 primary:1; /* this is primary */ + u16 pf_recipe; + u16 pf_rule_id; + u16 cp_rule_idx; u8 role; }; +/* LAG workqueue struct */ +struct ice_lag_work { + struct work_struct lag_task; + struct ice_lag_netdev_list netdev_list; + struct ice_lag *lag; + unsigned long event; + struct net_device *event_netdev; + union { + struct netdev_notifier_changeupper_info changeupper_info; + struct netdev_notifier_bonding_info bonding_info; + struct netdev_notifier_info notifier_info; + } info; +}; + int ice_init_lag(struct ice_pf *pf); void ice_deinit_lag(struct ice_pf *pf); #endif /* _ICE_LAG_H_ */