ionic: Add netdev-event handling (1a371ea1) · Commits · 戴 / test

drivers/net/ethernet/pensando/ionic/ionic.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -44,6 +44,8 @@ struct ionic {
		DECLARE_BITMAP(lifbits, IONIC_LIFS_MAX);
		unsigned int nintrs;
		DECLARE_BITMAP(intrs, IONIC_INTR_CTRL_REGS_MAX);
		struct work_struct nb_work;
		struct notifier_block nb;
		};

		struct ionic_admin_ctx {

drivers/net/ethernet/pensando/ionic/ionic_lif.c

+62 −0

Original line number	Diff line number	Diff line
		@@ -1955,10 +1955,66 @@ 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 ionic_lif *lif)
		{
		struct ionic_admin_ctx ctx = {
		.work = COMPLETION_INITIALIZER_ONSTACK(ctx.work),
		.cmd.lif_setattr = {
		.opcode = IONIC_CMD_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));

		ionic_adminq_post_wait(lif, &ctx);
		}

		static struct ionic_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 ionic_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) {
		@@ -1974,6 +2030,12 @@ 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

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