netdev - RE: [Intel-wired-lan] [PATCH iwl-next v6 08/15] idpf: configure resources for RX queues

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <MW4PR11MB5911D575BA443AEFC2962840BA4B9@MW4PR11MB5911.namprd11.prod.outlook.com>
Date: Tue, 30 May 2023 22:57:21 +0000
From: "Singh, Krishneil K" <krishneil.k.singh@...el.com>
To: "Linga, Pavan Kumar" <pavan.kumar.linga@...el.com>,
	"intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>
CC: "willemb@...gle.com" <willemb@...gle.com>, "pabeni@...hat.com"
	<pabeni@...hat.com>, "leon@...nel.org" <leon@...nel.org>, "mst@...hat.com"
	<mst@...hat.com>, "simon.horman@...igine.com" <simon.horman@...igine.com>,
	"Brandeburg, Jesse" <jesse.brandeburg@...el.com>,
	"stephen@...workplumber.org" <stephen@...workplumber.org>,
	"edumazet@...gle.com" <edumazet@...gle.com>, "Nguyen, Anthony L"
	<anthony.l.nguyen@...el.com>, "netdev@...r.kernel.org"
	<netdev@...r.kernel.org>, "kuba@...nel.org" <kuba@...nel.org>, "Burra, Phani
 R" <phani.r.burra@...el.com>, "decot@...gle.com" <decot@...gle.com>,
	"davem@...emloft.net" <davem@...emloft.net>, "shannon.nelson@....com"
	<shannon.nelson@....com>
Subject: RE: [Intel-wired-lan] [PATCH iwl-next v6 08/15] idpf: configure
 resources for RX queues

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@...osl.org> On Behalf Of
> Pavan Kumar Linga
> Sent: Monday, May 22, 2023 5:23 PM
> To: intel-wired-lan@...ts.osuosl.org
> Cc: willemb@...gle.com; pabeni@...hat.com; leon@...nel.org;
> mst@...hat.com; simon.horman@...igine.com; Brandeburg, Jesse
> <jesse.brandeburg@...el.com>; stephen@...workplumber.org;
> edumazet@...gle.com; Nguyen, Anthony L
> <anthony.l.nguyen@...el.com>; netdev@...r.kernel.org; kuba@...nel.org;
> Burra, Phani R <phani.r.burra@...el.com>; decot@...gle.com;
> davem@...emloft.net; shannon.nelson@....com
> Subject: [Intel-wired-lan] [PATCH iwl-next v6 08/15] idpf: configure resources
> for RX queues
> 
> From: Alan Brady <alan.brady@...el.com>
> 
> Similar to the TX, RX also supports both single and split queue models.
> In single queue model, the same descriptor queue is used by SW to post
> buffer descriptors to HW and by HW to post completed descriptors
> to SW. In split queue model, "RX buffer queues" are used to pass
> descriptor buffers from SW to HW whereas "RX queues" are used to
> post the descriptor completions i.e. descriptors that point to
> completed buffers, from HW to SW. "RX queue group" is a set of
> RX queues grouped together and will be serviced by a "RX buffer queue
> group". IDPF supports 2 buffer queues i.e. large buffer (4KB) queue
> and small buffer (2KB) queue per buffer queue group. HW uses large
> buffers for 'hardware gro' feature and also if the packet size is
> more than 2KB, if not 2KB buffers are used.
> 
> Add all the resources required for the RX queues initialization.
> Allocate memory for the RX queue and RX buffer queue groups. Initialize
> the software maintained refill queues for buffer management algorithm.
> 
> Same like the TX queues, initialize the queue parameters for the RX
> queues and send the config RX queue virtchnl message to the device
> Control Plane.
> 
> Signed-off-by: Alan Brady <alan.brady@...el.com>
> Co-developed-by: Alice Michael <alice.michael@...el.com>
> Signed-off-by: Alice Michael <alice.michael@...el.com>
> Co-developed-by: Joshua Hay <joshua.a.hay@...el.com>
> Signed-off-by: Joshua Hay <joshua.a.hay@...el.com>
> Co-developed-by: Madhu Chittim <madhu.chittim@...el.com>
> Signed-off-by: Madhu Chittim <madhu.chittim@...el.com>
> Co-developed-by: Phani Burra <phani.r.burra@...el.com>
> Signed-off-by: Phani Burra <phani.r.burra@...el.com>
> Co-developed-by: Pavan Kumar Linga <pavan.kumar.linga@...el.com>
> Signed-off-by: Pavan Kumar Linga <pavan.kumar.linga@...el.com>
> Reviewed-by: Sridhar Samudrala <sridhar.samudrala@...el.com>
> Reviewed-by: Willem de Bruijn <willemb@...gle.com>
> ---
>  drivers/net/ethernet/intel/idpf/Makefile      |   1 +
>  drivers/net/ethernet/intel/idpf/idpf.h        |  37 +-
>  .../net/ethernet/intel/idpf/idpf_lan_txrx.h   |  54 +-
>  drivers/net/ethernet/intel/idpf/idpf_lib.c    |  35 +-
>  .../ethernet/intel/idpf/idpf_singleq_txrx.c   |  60 ++
>  drivers/net/ethernet/intel/idpf/idpf_txrx.c   | 920 +++++++++++++++++-
>  drivers/net/ethernet/intel/idpf/idpf_txrx.h   | 148 ++-
>  .../net/ethernet/intel/idpf/idpf_virtchnl.c   | 495 +++++++++-
>  8 files changed, 1735 insertions(+), 15 deletions(-)
>  create mode 100644 drivers/net/ethernet/intel/idpf/idpf_singleq_txrx.c
> 

Tested-by: Krishneil Singh  <krishneil.k.singh@...el.com>