From: Ido Schimmel <idosch@idosch.org>
To: Jiri Pirko <jiri@resnulli.us>
Cc: netdev@vger.kernel.org, davem@davemloft.net, kuba@kernel.org,
jacob.e.keller@intel.com, roopa@nvidia.com, mlxsw@nvidia.com
Subject: Re: [patch net-next RFC 08/10] netdevsim: create devlink line card object and implement provisioning
Date: Fri, 15 Jan 2021 18:30:58 +0200 [thread overview]
Message-ID: <20210115163058.GF2064789@shredder.lan> (raw)
In-Reply-To: <20210113121222.733517-9-jiri@resnulli.us>
On Wed, Jan 13, 2021 at 01:12:20PM +0100, Jiri Pirko wrote:
> @@ -977,6 +1012,9 @@ static int __nsim_dev_port_add(struct nsim_dev *nsim_dev,
> memcpy(attrs.switch_id.id, nsim_dev->switch_id.id, nsim_dev->switch_id.id_len);
> attrs.switch_id.id_len = nsim_dev->switch_id.id_len;
> devlink_port_attrs_set(devlink_port, &attrs);
> + if (nsim_dev_linecard)
> + devlink_port_linecard_set(devlink_port,
> + nsim_dev_linecard->devlink_linecard);
Should be fold into devlink_port_attrs_set()
> err = devlink_port_register(priv_to_devlink(nsim_dev), devlink_port,
> nsim_dev_port->port_index);
> if (err)
> @@ -1053,10 +1091,88 @@ static int nsim_dev_port_add_all(struct nsim_dev *nsim_dev,
> return err;
> }
>
> +static void nsim_dev_linecard_provision_work(struct work_struct *work)
> +{
> + struct nsim_dev_linecard *nsim_dev_linecard;
> + struct nsim_bus_dev *nsim_bus_dev;
> + int err;
> + int i;
> +
> + nsim_dev_linecard = container_of(work, struct nsim_dev_linecard,
> + provision_work);
> +
> + nsim_bus_dev = nsim_dev_linecard->nsim_dev->nsim_bus_dev;
> + for (i = 0; i < nsim_dev_linecard_port_count(nsim_dev_linecard); i++) {
> + err = nsim_dev_port_add(nsim_bus_dev, nsim_dev_linecard, i);
> + if (err)
> + goto err_port_del_all;
> + }
> + nsim_dev_linecard->provisioned = true;
> + devlink_linecard_provision_set(nsim_dev_linecard->devlink_linecard,
> + nsim_dev_linecard->type_index);
> + return;
> +
> +err_port_del_all:
> + for (i--; i >= 0; i--)
> + nsim_dev_port_del(nsim_bus_dev, nsim_dev_linecard, i);
> + devlink_linecard_provision_clear(nsim_dev_linecard->devlink_linecard);
> +}
> +
> +static int nsim_dev_linecard_provision(struct devlink_linecard *linecard,
> + void *priv, u32 type_index,
> + struct netlink_ext_ack *extack)
> +{
> + struct nsim_dev_linecard *nsim_dev_linecard = priv;
> +
> + nsim_dev_linecard->type_index = type_index;
> + INIT_WORK(&nsim_dev_linecard->provision_work,
> + nsim_dev_linecard_provision_work);
> + schedule_work(&nsim_dev_linecard->provision_work);
> +
> + return 0;
> +}
> +
> +static void nsim_dev_linecard_unprovision_work(struct work_struct *work)
> +{
> + struct nsim_dev_linecard *nsim_dev_linecard;
> + struct nsim_bus_dev *nsim_bus_dev;
> + int i;
> +
> + nsim_dev_linecard = container_of(work, struct nsim_dev_linecard,
> + provision_work);
> +
> + nsim_bus_dev = nsim_dev_linecard->nsim_dev->nsim_bus_dev;
> + nsim_dev_linecard->provisioned = false;
> + devlink_linecard_provision_clear(nsim_dev_linecard->devlink_linecard);
> + for (i = 0; i < nsim_dev_linecard_port_count(nsim_dev_linecard); i++)
> + nsim_dev_port_del(nsim_bus_dev, nsim_dev_linecard, i);
> +}
> +
> +static int nsim_dev_linecard_unprovision(struct devlink_linecard *linecard,
> + void *priv,
> + struct netlink_ext_ack *extack)
> +{
> + struct nsim_dev_linecard *nsim_dev_linecard = priv;
> +
> + INIT_WORK(&nsim_dev_linecard->provision_work,
> + nsim_dev_linecard_unprovision_work);
> + schedule_work(&nsim_dev_linecard->provision_work);
> +
> + return 0;
> +}
> +
> +static const struct devlink_linecard_ops nsim_dev_linecard_ops = {
> + .supported_types = nsim_dev_linecard_supported_types,
> + .supported_types_count = ARRAY_SIZE(nsim_dev_linecard_supported_types),
> + .provision = nsim_dev_linecard_provision,
> + .unprovision = nsim_dev_linecard_unprovision,
> +};
> +
> static int __nsim_dev_linecard_add(struct nsim_dev *nsim_dev,
> unsigned int linecard_index)
> {
> struct nsim_dev_linecard *nsim_dev_linecard;
> + struct devlink_linecard *devlink_linecard;
> int err;
>
> nsim_dev_linecard = kzalloc(sizeof(*nsim_dev_linecard), GFP_KERNEL);
> @@ -1066,14 +1182,27 @@ static int __nsim_dev_linecard_add(struct nsim_dev *nsim_dev,
> nsim_dev_linecard->linecard_index = linecard_index;
> INIT_LIST_HEAD(&nsim_dev_linecard->port_list);
>
> + devlink_linecard = devlink_linecard_create(priv_to_devlink(nsim_dev),
> + linecard_index,
> + &nsim_dev_linecard_ops,
> + nsim_dev_linecard);
> + if (IS_ERR(devlink_linecard)) {
> + err = PTR_ERR(devlink_linecard);
> + goto err_linecard_free;
> + }
> +
> + nsim_dev_linecard->devlink_linecard = devlink_linecard;
> +
> err = nsim_dev_linecard_debugfs_init(nsim_dev, nsim_dev_linecard);
> if (err)
> - goto err_linecard_free;
> + goto err_dl_linecard_destroy;
>
> list_add(&nsim_dev_linecard->list, &nsim_dev->linecard_list);
>
> return 0;
>
> +err_dl_linecard_destroy:
> + devlink_linecard_destroy(devlink_linecard);
> err_linecard_free:
> kfree(nsim_dev_linecard);
> return err;
> @@ -1081,8 +1210,12 @@ static int __nsim_dev_linecard_add(struct nsim_dev *nsim_dev,
>
> static void __nsim_dev_linecard_del(struct nsim_dev_linecard *nsim_dev_linecard)
> {
> + struct devlink_linecard *devlink_linecard =
> + nsim_dev_linecard->devlink_linecard;
> +
> list_del(&nsim_dev_linecard->list);
> nsim_dev_linecard_debugfs_exit(nsim_dev_linecard);
What about the delayed work? I believe it can run while you are
destroying the linecard, so cancel_delayed_work_sync() is needed
> + devlink_linecard_destroy(devlink_linecard);
> kfree(nsim_dev_linecard);
> }
>
> diff --git a/drivers/net/netdevsim/netdevsim.h b/drivers/net/netdevsim/netdevsim.h
> index 88b61b9390bf..ab217b361416 100644
> --- a/drivers/net/netdevsim/netdevsim.h
> +++ b/drivers/net/netdevsim/netdevsim.h
> @@ -196,10 +196,14 @@ struct nsim_dev;
>
> struct nsim_dev_linecard {
> struct list_head list;
> + struct devlink_linecard *devlink_linecard;
> struct nsim_dev *nsim_dev;
> struct list_head port_list;
> unsigned int linecard_index;
> struct dentry *ddir;
> + bool provisioned;
> + u32 type_index;
> + struct work_struct provision_work;
> };
>
> struct nsim_dev {
> --
> 2.26.2
>
next prev parent reply other threads:[~2021-01-15 16:32 UTC|newest]
Thread overview: 80+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-13 12:12 [patch net-next RFC 00/10] introduce line card support for modular switch Jiri Pirko
2021-01-13 12:12 ` [patch net-next RFC 01/10] devlink: add support to create line card and expose to user Jiri Pirko
2021-01-15 15:47 ` Ido Schimmel
2021-01-13 12:12 ` [patch net-next RFC 02/10] devlink: implement line card provisioning Jiri Pirko
2021-01-15 16:03 ` Ido Schimmel
2021-01-15 16:51 ` Jiri Pirko
2021-01-15 18:09 ` Ido Schimmel
2021-01-18 12:50 ` Jiri Pirko
2021-01-13 12:12 ` [patch net-next RFC 03/10] devlink: implement line card active state Jiri Pirko
2021-01-15 16:06 ` Ido Schimmel
2021-01-15 16:52 ` Jiri Pirko
2021-01-13 12:12 ` [patch net-next RFC 04/10] devlink: append split port number to the port name Jiri Pirko
2021-01-13 12:12 ` [patch net-next RFC 05/10] devlink: add port to line card relationship set Jiri Pirko
2021-01-15 16:10 ` Ido Schimmel
2021-01-15 16:53 ` Jiri Pirko
2021-01-13 12:12 ` [patch net-next RFC 06/10] netdevsim: introduce line card support Jiri Pirko
2021-01-13 12:12 ` [patch net-next RFC 07/10] netdevsim: allow port objects to be linked with line cards Jiri Pirko
2021-01-13 12:12 ` [patch net-next RFC 08/10] netdevsim: create devlink line card object and implement provisioning Jiri Pirko
2021-01-15 16:30 ` Ido Schimmel [this message]
2021-01-15 16:54 ` Jiri Pirko
2021-01-13 12:12 ` [patch net-next RFC 09/10] netdevsim: implement line card activation Jiri Pirko
2021-01-13 12:12 ` [patch net-next RFC 10/10] selftests: add netdevsim devlink lc test Jiri Pirko
2021-01-13 13:39 ` [patch iproute2/net-next RFC] devlink: add support for linecard show and provision Jiri Pirko
2021-01-14 2:07 ` [patch net-next RFC 00/10] introduce line card support for modular switch Andrew Lunn
2021-01-14 7:39 ` Jiri Pirko
2021-01-14 22:56 ` Jacob Keller
2021-01-15 14:19 ` Jiri Pirko
2021-01-19 11:56 ` Jiri Pirko
2021-01-19 14:51 ` Andrew Lunn
2021-01-20 8:36 ` Jiri Pirko
2021-01-20 13:56 ` Andrew Lunn
2021-01-20 23:41 ` Jakub Kicinski
2021-01-21 0:01 ` Andrew Lunn
2021-01-21 0:16 ` Jakub Kicinski
2021-01-21 15:34 ` Jiri Pirko
2021-01-21 15:32 ` Jiri Pirko
2021-01-21 16:38 ` David Ahern
2021-01-22 7:28 ` Jiri Pirko
2021-01-22 14:13 ` Andrew Lunn
2021-01-26 11:33 ` Jiri Pirko
2021-01-26 13:56 ` Andrew Lunn
2021-01-27 7:57 ` Jiri Pirko
2021-01-27 14:14 ` Andrew Lunn
2021-01-27 14:57 ` David Ahern
2021-01-28 8:14 ` Jiri Pirko
2021-01-28 14:17 ` Andrew Lunn
2021-01-29 7:20 ` Jiri Pirko
[not found] ` <YBQujIdnFtEhWqTF@lunn.ch>
2021-01-29 16:45 ` Vadim Pasternak
2021-01-29 17:31 ` Andrew Lunn
2021-01-30 14:19 ` Jiri Pirko
[not found] ` <251d1e12-1d61-0922-31f8-a8313f18f194@gmail.com>
2021-02-01 8:16 ` Jiri Pirko
2021-02-01 13:41 ` Andrew Lunn
2021-02-03 14:57 ` Jiri Pirko
2021-02-03 16:26 ` Andrew Lunn
2021-02-01 1:43 ` Andrew Lunn
2021-01-22 8:05 ` Jiri Pirko
2021-01-19 16:23 ` David Ahern
2021-01-20 8:37 ` Jiri Pirko
2021-01-14 2:27 ` Jakub Kicinski
2021-01-14 7:48 ` Jiri Pirko
2021-01-14 23:30 ` Jakub Kicinski
2021-01-15 14:39 ` Jiri Pirko
2021-01-15 19:26 ` Jakub Kicinski
2021-01-18 13:00 ` Jiri Pirko
2021-01-18 17:59 ` Jakub Kicinski
2021-01-19 11:51 ` Jiri Pirko
2021-01-18 22:55 ` David Ahern
2021-01-22 8:01 ` Jiri Pirko
2021-01-14 22:58 ` Jacob Keller
2021-01-14 23:20 ` Jakub Kicinski
2021-01-15 14:40 ` Jiri Pirko
2021-01-15 15:43 ` Ido Schimmel
2021-01-15 16:55 ` Jiri Pirko
2021-01-15 18:01 ` Ido Schimmel
2021-01-18 13:03 ` Jiri Pirko
2021-01-18 18:01 ` Edwin Peer
2021-01-18 22:57 ` David Ahern
2021-01-18 23:40 ` Edwin Peer
2021-01-19 2:39 ` David Ahern
2021-01-19 5:06 ` Edwin Peer
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