linux-dev/drivers/net/ethernet/netronome/nfp/Makefile, branch master

nfp: add support for NFDK data path

2022-03-21T13:21:17Z

Add new data path. The TX is completely different, each packet has multiple descriptor entries (between 2 and 32). TX ring is divided into blocks 32 descriptor, and descritors of one packet can't cross block bounds. The RX side is the same for now. ABI version 5 or later is required. There is no support for VLAN insertion on TX. XDP_TX action and AF_XDP zero-copy is not implemented in NFDK path. Changes to Jakub's work: * Move statistics of hw_csum_tx after jumbo packet's segmentation. * Set L3_CSUM flag to enable recaculating of L3 header checksum in ipv4 case. * Mark the case of TSO a packet with metadata prepended as unsupported. Signed-off-by: Jakub Kicinski Signed-off-by: Xingfeng Hu Signed-off-by: Yinjun Zhang Signed-off-by: Dianchao Wang Signed-off-by: Fei Qin Signed-off-by: Simon Horman Signed-off-by: David S. Miller

nfp: move the fast path code to separate files

2022-03-21T13:21:16Z

In preparation for support for a new datapath format move all ring and fast path logic into separate files. It is basically a verbatim move with some wrapping functions, no new structures and functions added. The current data path is called NFD3 from the initial version of the driver ABI it used. The non-fast path, but ring related functions are moved to nfp_net_dp.c file. Changes to Jakub's work: * Rebase on xsk related code. * Split the patch, move the callback changes to next commit. Signed-off-by: Jakub Kicinski Signed-off-by: Fei Qin Signed-off-by: Simon Horman Signed-off-by: David S. Miller

nfp: introduce dev_info static chip data

2022-03-12T07:10:22Z

In preparation for supporting new chip add a driver data structure which will hold per-chip-version information such as register offsets. Plumb it through to the relevant functions (nfpcore and nfp_net). For now only a very simple member holding chip names is added, following commits will add more. Signed-off-by: Jakub Kicinski Signed-off-by: Fei Qin Signed-off-by: Simon Horman Signed-off-by: Jakub Kicinski

nfp: xsk: add AF_XDP zero-copy Rx and Tx support

2022-03-04T13:06:12Z

This patch adds zero-copy Rx and Tx support for AF_XDP sockets. It do so by adding a separate NAPI poll function that is attached to a each channel when the XSK socket is attached with XDP_SETUP_XSK_POOL, and restored when the XSK socket is terminated, this is done per channel. Support for XDP_TX is implemented and the XDP buffer can safely be moved from the Rx to the Tx queue and correctly freed and returned to the XSK pool once it's transmitted. Note that when AF_XDP zero-copy is enabled, the XDP action XDP_PASS will allocate a new buffer and copy the zero-copy frame prior passing it to the kernel stack. This patch is based on previous work by Jakub Kicinski. Signed-off-by: Niklas Söderlund Signed-off-by: Simon Horman Signed-off-by: David S. Miller

nfp: flower-ct: add pre and post ct checks

2021-06-02T21:04:41Z

Add checks to see if a flow is a conntrack flow we can potentially handle. Just stub out the handling the different conntrack flows. Signed-off-by: Louis Peens Signed-off-by: Yinjun Zhang Signed-off-by: Simon Horman Signed-off-by: David S. Miller

nfp: add devlink param infrastructure

2019-09-10T16:29:27Z

Register devlink parameters for driver use. Subsequent patches will add support for specific parameters. In order to support devlink parameters, the management firmware needs to be able to lookup and set hwinfo keys. Signed-off-by: Dirk van der Merwe Signed-off-by: Jakub Kicinski Signed-off-by: Simon Horman Signed-off-by: David S. Miller

nfp: add tls init code

2019-06-06T21:13:40Z

Add FW ABI defines and code for basic init of TLS offload. Signed-off-by: Jakub Kicinski Reviewed-by: Dirk van der Merwe Signed-off-by: David S. Miller

nfp: add support for sending control messages via mailbox

2019-06-06T21:13:39Z

FW may prefer to handle some communication via a mailbox or the vNIC may simply not have a control queue (VFs). Add a way of exchanging ccm-compatible messages via a mailbox. Signed-off-by: Jakub Kicinski Reviewed-by: Dirk van der Merwe Signed-off-by: David S. Miller

nfp: flower: add qos offload framework

2019-05-06T04:49:24Z

Introduce matchall filter offload infrastructure that is needed to offload qos features like policing. Subsequent patches will make use of police-filters for ingress rate limiting. Signed-off-by: Pieter Jansen van Vuuren Reviewed-by: Jakub Kicinski Signed-off-by: David S. Miller

nfp: split out common control message handling code

2019-04-13T00:29:15Z

BPF's control message handler seems like a good base to built on for request-reply control messages. Split it out to allow for reuse. Signed-off-by: Jakub Kicinski Reviewed-by: Dirk van der Merwe Signed-off-by: David S. Miller