netdev - Re: [EXTERNAL] Re: [net-next PATCH v2 0/9] Introduce RVU representors

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Date: Thu, 25 Apr 2024 09:00:34 +0200
From: Jiri Pirko <jiri@...nulli.us>
To: Geethasowjanya Akula <gakula@...vell.com>
Cc: "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"kuba@...nel.org" <kuba@...nel.org>,
	"davem@...emloft.net" <davem@...emloft.net>,
	"pabeni@...hat.com" <pabeni@...hat.com>,
	"edumazet@...gle.com" <edumazet@...gle.com>,
	Sunil Kovvuri Goutham <sgoutham@...vell.com>,
	Subbaraya Sundeep Bhatta <sbhatta@...vell.com>,
	Hariprasad Kelam <hkelam@...vell.com>
Subject: Re: [EXTERNAL] Re: [net-next PATCH v2 0/9] Introduce RVU representors

Thu, Apr 25, 2024 at 07:09:01AM CEST, gakula@...vell.com wrote:
>
>
>> -----Original Message-----
>> From: Jiri Pirko <jiri@...nulli.us>
>> Sent: Wednesday, April 24, 2024 8:12 PM
>> To: Geethasowjanya Akula <gakula@...vell.com>
>> Cc: netdev@...r.kernel.org; linux-kernel@...r.kernel.org; kuba@...nel.org;
>> davem@...emloft.net; pabeni@...hat.com; edumazet@...gle.com; Sunil
>> Kovvuri Goutham <sgoutham@...vell.com>; Subbaraya Sundeep Bhatta
>> <sbhatta@...vell.com>; Hariprasad Kelam <hkelam@...vell.com>
>> Subject: Re: [EXTERNAL] Re: [net-next PATCH v2 0/9] Introduce RVU
>> representors
>> 
>> Tue, Apr 23, 2024 at 05:39:15PM CEST, gakula@...vell.com wrote:
>> >
>> >
>> >> -----Original Message-----
>> >> From: Jiri Pirko <jiri@...nulli.us>
>> >> Sent: Tuesday, April 23, 2024 6:33 PM
>> >> To: Geethasowjanya Akula <gakula@...vell.com>
>> >> Cc: netdev@...r.kernel.org; linux-kernel@...r.kernel.org;
>> >> kuba@...nel.org; davem@...emloft.net; pabeni@...hat.com;
>> >> edumazet@...gle.com; Sunil Kovvuri Goutham
>> <sgoutham@...vell.com>;
>> >> Subbaraya Sundeep Bhatta <sbhatta@...vell.com>; Hariprasad Kelam
>> >> <hkelam@...vell.com>
>> >> Subject: [EXTERNAL] Re: [net-next PATCH v2 0/9] Introduce RVU
>> >> representors
>> >> ---------------------------------------------------------------------
>> >> - Mon, Apr 22, 2024 at 11:53:52AM CEST, gakula@...vell.com wrote:
>> >> >This series adds representor support for each rvu devices.
>> >> >When switchdev mode is enabled, representor netdev is registered for
>> >> >each rvu device. In implementation of representor model, one NIX HW
>> >> >LF with multiple SQ and RQ is reserved, where each RQ and SQ of the
>> >> >LF are mapped to a representor. A loopback channel is reserved to
>> >> >support packet path between representors and VFs.
>> >> >CN10K silicon supports 2 types of MACs, RPM and SDP. This patch set
>> >> >adds representor support for both RPM and SDP MAC interfaces.
>> >> >
>> >> >- Patch 1: Refactors and exports the shared service functions.
>> >> >- Patch 2: Implements basic representor driver.
>> >> >- Patch 3: Add devlink support to create representor netdevs that
>> >> >  can be used to manage VFs.
>> >> >- Patch 4: Implements basec netdev_ndo_ops.
>> >> >- Patch 5: Installs tcam rules to route packets between representor and
>> >> >	   VFs.
>> >> >- Patch 6: Enables fetching VF stats via representor interface.
>> >> >- Patch 7: Adds support to sync link state between representors and VFs.
>> >> >- Patch 8: Enables configuring VF MTU via representor netdevs.
>> >> >- Patch 9: Add representors for sdp MAC.
>> >>
>> >>
>> >> Could you please add some command outputs to the cover letter? Like $
>> >> devlink dev $ devlink port
>> >>
>> >#devlink dev eswitch set pci/0002:1c:00.0 mode switchdev
>VF representors are created for each VF when switch mode is set switchdev on representor PCI device
># devlink dev eswitch set pci/0002:1c:00.0  mode switchdev 
># ip link show
>25: r0p1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
>    link/ether 32:0f:0f:f0:60:f1 brd ff:ff:ff:ff:ff:ff
>26: r1p1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
>    link/ether 3e:5d:9a:4d:e7:7b brd ff:ff:ff:ff:ff:ff
>
>Sorry if I was not clear before. Hope these answers you question.


Again, please add outputs of:
devlink dev
devlink port

I'm not sure why this was not clear the first time I wrote it.

>
>> 
>> ?
>> 
>> >> outputs at least.
>> >>
>> >>
>> >> >
>> >> >-----------
>> >> >v1-v2:
>> >> > -Fixed build warnings.
>> >> > -Address review comments provided by "Kalesh Anakkur Purayil".
>> >> >
>> >> >Geetha sowjanya (9):
>> >> >  octeontx2-pf: Refactoring RVU driver
>> >> >  octeontx2-pf: RVU representor driver
>> >> >  octeontx2-pf: Create representor netdev
>> >> >  octeontx2-pf: Add basic net_device_ops
>> >> >  octeontx2-af: Add packet path between representor and VF
>> >> >  octeontx2-pf: Get VF stats via representor
>> >> >  octeontx2-pf: Add support to sync link state between representor and
>> >> >    VFs
>> >> >  octeontx2-pf: Configure VF mtu via representor
>> >> >  octeontx2-pf: Add representors for sdp MAC
>> >> >
>> >> > .../net/ethernet/marvell/octeontx2/Kconfig    |   8 +
>> >> > .../ethernet/marvell/octeontx2/af/Makefile    |   3 +-
>> >> > .../ethernet/marvell/octeontx2/af/common.h    |   2 +
>> >> > .../net/ethernet/marvell/octeontx2/af/mbox.h  |  73 +++
>> >> > .../net/ethernet/marvell/octeontx2/af/npc.h   |   1 +
>> >> > .../net/ethernet/marvell/octeontx2/af/rvu.h   |  30 +-
>> >> > .../marvell/octeontx2/af/rvu_debugfs.c        |  27 -
>> >> > .../marvell/octeontx2/af/rvu_devlink.c        |   6 +
>> >> > .../ethernet/marvell/octeontx2/af/rvu_nix.c   |  75 ++-
>> >> > .../marvell/octeontx2/af/rvu_npc_fs.c         |   4 +
>> >> > .../ethernet/marvell/octeontx2/af/rvu_rep.c   | 457 ++++++++++++++
>> >> > .../marvell/octeontx2/af/rvu_struct.h         |  26 +
>> >> > .../marvell/octeontx2/af/rvu_switch.c         |  20 +-
>> >> > .../ethernet/marvell/octeontx2/nic/Makefile   |   2 +
>> >> > .../ethernet/marvell/octeontx2/nic/cn10k.c    |   4 +-
>> >> > .../ethernet/marvell/octeontx2/nic/cn10k.h    |   2 +-
>> >> > .../marvell/octeontx2/nic/otx2_common.c       |  53 +-
>> >> > .../marvell/octeontx2/nic/otx2_common.h       |  83 ++-
>> >> > .../marvell/octeontx2/nic/otx2_devlink.c      |  47 ++
>> >> > .../ethernet/marvell/octeontx2/nic/otx2_pf.c  | 305 ++++++---
>> >> > .../ethernet/marvell/octeontx2/nic/otx2_reg.h |   1 +
>> >> > .../marvell/octeontx2/nic/otx2_txrx.c         |  35 +-
>> >> > .../marvell/octeontx2/nic/otx2_txrx.h         |   3 +-
>> >> > .../ethernet/marvell/octeontx2/nic/otx2_vf.c  |  18 +-
>> >> > .../net/ethernet/marvell/octeontx2/nic/rep.c  | 596
>> >> > ++++++++++++++++++ .../net/ethernet/marvell/octeontx2/nic/rep.h  |
>> >> > 51 ++
>> >> > 26 files changed, 1707 insertions(+), 225 deletions(-) create mode
>> >> > 100644 drivers/net/ethernet/marvell/octeontx2/af/rvu_rep.c
>> >> > create mode 100644 drivers/net/ethernet/marvell/octeontx2/nic/rep.c
>> >> > create mode 100644 drivers/net/ethernet/marvell/octeontx2/nic/rep.h
>> >> >
>> >> >--
>> >> >2.25.1
>> >> >
>> >> >