From patchwork Fri Jun 28 21:39:30 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shannon Nelson X-Patchwork-Id: 1124557 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=pensando.io Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=pensando.io header.i=@pensando.io header.b="RxQD7KIH"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 45b9D25GhGz9s4Y for ; Sat, 29 Jun 2019 07:40:18 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726996AbfF1VkR (ORCPT ); Fri, 28 Jun 2019 17:40:17 -0400 Received: from mail-pf1-f195.google.com ([209.85.210.195]:42514 "EHLO mail-pf1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726911AbfF1Vj7 (ORCPT ); Fri, 28 Jun 2019 17:39:59 -0400 Received: by mail-pf1-f195.google.com with SMTP id q10so3614545pff.9 for ; Fri, 28 Jun 2019 14:39:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=pensando.io; s=google; h=from:to:subject:date:message-id:in-reply-to:references; bh=G4s6K2gNtK5sdz2QQKvl3Cpp608YhRphEO4Lx4uSUuw=; b=RxQD7KIHVInDjQhf6IV+aF1NF0t5CH70Zy+W9u1GqxbnZ6m6KGiqQQiT/iIgP6yMoX Y2S6pHB5iyo9qD2KxUaS9EXmAeHWhUcYp9zUQBj60n66GF1i+/LS/gIxecrF8UduWkrX gVfx4NTzsdWc2C28PF3qjMy4NlTbhD74p1Es6zxrdtLnw57pZpYwxs4kXi4+IncV+jiV OF4v6yvZZq1HDIaApGXKW+PLlmAHxt7QdNtWRnpSdSBb8JgU7G/LQEGzHz5+tJ9P+HcN Aiajx9bMohci4/IpRWdkMA4UE7ia4gW6+TcEyHu6Cq8ofdelMHn+EHcFiMSYAEhEd0/J vEEw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references; bh=G4s6K2gNtK5sdz2QQKvl3Cpp608YhRphEO4Lx4uSUuw=; b=KRF58ewKUhLsNv8/h9E9AE4z4QZue9ibrJ03fvWTWe1PydMslWL8k5WQpEQSMPhKyk KGoOVvBzPndbeQ6zfwLfYvPG8P7HvRq9nTw4IZkFgZ4ncaZ24zkvz2AhZcd7MI7rq0Wi FVVwM69uEaLrKmGwFdYM24k7b/KrY2bJNi966o4HvvSaNodZQQugNCh/6wZWCH+LCxNv CsCkN3ylxb9FHW7QrHEHhBm2GyGzhz15ZrCdc41/79TeSfzyARQeJwP+9teoCFEIChqn /qJL3pdgkTayQJgbS9io+XkwPQFD5nHTS9enhJQiXWI5KmKNiirzizTl8hx1EMWvAX65 fpxQ== X-Gm-Message-State: APjAAAVL64R/hDE4humQOiUKNwCOwWNWmCRIrMd0GGijp6YjcPL/LhwR o+ihtN/EXPlGHlQ22ViIrFQuwQ== X-Google-Smtp-Source: APXvYqwMyMbTGI2F3qWoGRVXVaY6NVd13CNC/tuc/p+a1QINXSBlNKNA/1sX5zl3FrXqnoM52aY6oA== X-Received: by 2002:a17:90a:8984:: with SMTP id v4mr15582083pjn.133.1561757998568; Fri, 28 Jun 2019 14:39:58 -0700 (PDT) Received: from driver-dev1.pensando.io ([12.1.37.26]) by smtp.gmail.com with ESMTPSA id 135sm3516920pfb.137.2019.06.28.14.39.57 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 28 Jun 2019 14:39:58 -0700 (PDT) From: Shannon Nelson To: snelson@pensando.io, netdev@vger.kernel.org Subject: [PATCH v2 net-next 15/19] ionic: Add netdev-event handling Date: Fri, 28 Jun 2019 14:39:30 -0700 Message-Id: <20190628213934.8810-16-snelson@pensando.io> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190628213934.8810-1-snelson@pensando.io> References: <20190628213934.8810-1-snelson@pensando.io> Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org When the netdev gets a new name from userland, pass that name down to the NIC for internal tracking. Signed-off-by: Shannon Nelson --- drivers/net/ethernet/pensando/ionic/ionic.h | 2 + .../net/ethernet/pensando/ionic/ionic_lif.c | 65 +++++++++++++++++++ 2 files changed, 67 insertions(+) diff --git a/drivers/net/ethernet/pensando/ionic/ionic.h b/drivers/net/ethernet/pensando/ionic/ionic.h index d7eee79b2a10..9b720187b549 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic.h +++ b/drivers/net/ethernet/pensando/ionic/ionic.h @@ -42,6 +42,8 @@ struct ionic { DECLARE_BITMAP(lifbits, IONIC_LIFS_MAX); unsigned int nintrs; DECLARE_BITMAP(intrs, INTR_CTRL_REGS_MAX); + struct work_struct nb_work; + struct notifier_block nb; }; struct ionic_admin_ctx { diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c index b47ed322496f..76974c61c306 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c @@ -1956,10 +1956,69 @@ int ionic_lifs_init(struct ionic *ionic) return 0; } +static void ionic_lif_notify_work(struct work_struct *ws) +{ +} + +static void ionic_lif_set_netdev_info(struct lif *lif) +{ + struct ionic_admin_ctx ctx = { + .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work), + .cmd.lif_setattr = { + .opcode = CMD_OPCODE_LIF_SETATTR, + .index = cpu_to_le16(lif->index), + .attr = IONIC_LIF_ATTR_NAME, + }, + }; + + strlcpy(ctx.cmd.lif_setattr.name, lif->netdev->name, + sizeof(ctx.cmd.lif_setattr.name)); + + dev_info(lif->ionic->dev, "NETDEV_CHANGENAME %s %s\n", + lif->name, ctx.cmd.lif_setattr.name); + + ionic_adminq_post_wait(lif, &ctx); +} + +static struct lif *ionic_netdev_lif(struct net_device *netdev) +{ + if (!netdev || netdev->netdev_ops->ndo_start_xmit != ionic_start_xmit) + return NULL; + + return netdev_priv(netdev); +} + +static int ionic_lif_notify(struct notifier_block *nb, + unsigned long event, void *info) +{ + struct net_device *ndev = netdev_notifier_info_to_dev(info); + struct ionic *ionic = container_of(nb, struct ionic, nb); + struct lif *lif = ionic_netdev_lif(ndev); + + if (!lif || lif->ionic != ionic) + return NOTIFY_DONE; + + switch (event) { + case NETDEV_CHANGENAME: + ionic_lif_set_netdev_info(lif); + break; + } + + return NOTIFY_DONE; +} + int ionic_lifs_register(struct ionic *ionic) { int err; + INIT_WORK(&ionic->nb_work, ionic_lif_notify_work); + + ionic->nb.notifier_call = ionic_lif_notify; + + err = register_netdevice_notifier(&ionic->nb); + if (err) + ionic->nb.notifier_call = NULL; + /* only register LIF0 for now */ err = register_netdev(ionic->master_lif->netdev); if (err) { @@ -1975,6 +2034,12 @@ int ionic_lifs_register(struct ionic *ionic) void ionic_lifs_unregister(struct ionic *ionic) { + if (ionic->nb.notifier_call) { + unregister_netdevice_notifier(&ionic->nb); + cancel_work_sync(&ionic->nb_work); + ionic->nb.notifier_call = NULL; + } + /* There is only one lif ever registered in the * current model, so don't bother searching the * ionic->lif for candidates to unregister