From: Lino Sanfilippo <LinoSanfilippo@gmx•de>
To: Jiri Pirko <jiri@resnulli•us>, netdev@vger•kernel.org
Cc: davem@davemloft•net, nhorman@tuxdriver•com, andy@greyhouse•net,
tgraf@suug•ch, dborkman@redhat•com, ogerlitz@mellanox•com,
jesse@nicira•com, pshelar@nicira•com, azhou@nicira•com,
ben@decadent•org.uk, stephen@networkplumber•org,
jeffrey.t.kirsher@intel•com, vyasevic@redhat•com,
xiyou.wangcong@gmail•com, john.r.fastabend@intel•com,
edumazet@google•com, jhs@mojatatu•com, sfeldma@gmail•com,
f.fainelli@gmail•com, roopa@cumulusnetworks•com,
linville@tuxdriver•com, jasowang@redhat•com,
ebiederm@xmission•com, nicolas.dichtel@6wind•com,
ryazanov.s.a@gmail•com, buytenh@wantstofly•org,
aviadr@mellanox•com, nbd@openwrt•org,
alexei.starovoitov@gmail•com, Neil.Jerram@metaswitch•com,
ronye@mellanox•com, simon.horman@netronome•com,
alexander.h.duyck@redhat•com, john.ronciak@intel•com,
mleitner@redhat•com, shrijeet@gmail•com,
gospo@cumulusnetworks•com, bcrl@kvack•org, hemal@broadcom•co
Subject: Re: [patch net-next v5 06/21] net: introduce generic switch devices support
Date: Sat, 29 Nov 2014 10:31:39 +0100 [thread overview]
Message-ID: <5479927B.4020807@gmx.de> (raw)
In-Reply-To: <1417181672-11531-7-git-send-email-jiri@resnulli.us>
Hi,
On 28.11.2014 14:34, Jiri Pirko wrote:
> +
> + ndo_switch_parent_id_get - This returns the same ID for two port netdevices
> + of the same physical switch chip. This is
> + mandatory to be implemented by all switch drivers
> + and serves the caller for recognition of a port
> + netdevice.
> + ndo_switch_parent_* - Functions that serve for a manipulation of the switch
> + chip itself (it can be though of as a "parent" of the
> + port, therefore the name). They are not port-specific.
> + Caller might use arbitrary port netdevice of the same
> + switch and it will make no difference.
I doubt that this is a good solution. If you want to access some kind of
parent device why dont you provide a device structure for it along with
register and unregister functions? Also each device should IMHO show up
in sysfs somehow, which should also be part of a register function.
There is already an existing driver (see net/dsa) that addresses the
representation of switch devices. What is wrong with that?
Regards,
Lino
next prev parent reply other threads:[~2014-11-29 9:33 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-28 13:34 [patch net-next v5 00/21] introduce rocker switch driver with hardware accelerated datapath api - phase 1: bridge fdb offload Jiri Pirko
2014-11-28 13:34 ` [patch net-next v5 01/21] bridge: rename fdb_*_hw to fdb_*_hw_addr to avoid confusion Jiri Pirko
2014-11-28 13:34 ` [patch net-next v5 02/21] neigh: sort Neighbor Cache Entry Flags Jiri Pirko
2014-11-28 13:34 ` [patch net-next v5 03/21] bridge: convert flags in fbd entry into bitfields Jiri Pirko
2014-11-28 13:34 ` [patch net-next v5 04/21] net: make vid as a parameter for ndo_fdb_add/ndo_fdb_del Jiri Pirko
2014-11-28 13:34 ` [patch net-next v5 05/21] net: rename netdev_phys_port_id to more generic name Jiri Pirko
2014-11-28 13:34 ` [patch net-next v5 06/21] net: introduce generic switch devices support Jiri Pirko
2014-11-29 9:31 ` Lino Sanfilippo [this message]
2014-11-29 9:59 ` Jiri Pirko
2014-11-29 10:44 ` Lino Sanfilippo
2014-11-28 13:34 ` [patch net-next v5 07/21] rtnl: expose physical switch id for particular device Jiri Pirko
2014-11-28 13:34 ` [patch net-next v5 08/21] net-sysfs: " Jiri Pirko
2014-11-28 13:34 ` [patch net-next v5 09/21] bridge: call netdev_sw_port_stp_update when bridge port STP status changes Jiri Pirko
2014-11-28 13:34 ` [patch net-next v5 10/21] bridge: add API to notify bridge driver of learned FBD on offloaded device Jiri Pirko
2014-11-28 13:34 ` [patch net-next v5 11/21] bridge: move private brport flags to if_bridge.h so port drivers can use flags Jiri Pirko
2014-11-28 13:34 ` [patch net-next v5 12/21] bridge: add new brport flag LEARNING_SYNC Jiri Pirko
2014-11-28 13:34 ` [patch net-next v5 13/21] bridge: add new hwmode swdev Jiri Pirko
2014-11-28 13:34 ` [patch net-next v5 14/21] bridge: add brport flags to dflt bridge_getlink Jiri Pirko
2014-11-28 13:34 ` [patch net-next v5 15/21] rocker: introduce rocker switch driver Jiri Pirko
2014-11-28 13:34 ` [patch net-next v5 16/21] rocker: implement rocker ofdpa flow table manipulation Jiri Pirko
2014-11-28 13:34 ` [patch net-next v5 17/21] rocker: implement L2 bridge offloading Jiri Pirko
2014-11-28 13:34 ` [patch net-next v5 18/21] rocker: implement ndo_fdb_dump Jiri Pirko
2014-11-28 13:34 ` [patch net-next v5 19/21] rocker: add ndo_bridge_setlink/getlink support for learning policy Jiri Pirko
2014-11-28 13:34 ` [patch net-next v5 20/21] rocker: Add proper validation of Netlink attributes Jiri Pirko
2014-11-28 13:34 ` [patch net-next v5 21/21] rocker: Use logical operators on booleans Jiri Pirko
2014-12-03 4:02 ` [patch net-next v5 00/21] introduce rocker switch driver with hardware accelerated datapath api - phase 1: bridge fdb offload David Miller
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