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path: root/drivers/net/ethernet/netronome/nfp/nfp_net_ctrl.h (follow)
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2019-04-12nfp: add a mutex lock for the vNIC ctrl BARJakub Kicinski1-7/+0
Soon we will try to write to the vNIC mailbox without RTNL held. Add a new mutex to protect access to specific parts of the PCI control BAR. Move the mailbox size checking to the mailbox lock() helper, where it can be more effective (happen prior to potential overwrite of other data). Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-21nfp: remove defines for unused control bitsJakub Kicinski1-3/+0
NFP driver ABI contains bits for L2 switching which were never implemented in initially envisioned form. Remove the defines, and open up the possibility of reclaiming the bits for other uses. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-07nfp: fix simple vNIC mailbox lengthDirk van der Merwe1-1/+1
The simple vNIC mailbox length should be 12 decimal and not 0x12. Using a decimal also makes it clear this is a length value and not another field within the simple mailbox defines. Found by code inspection, there are no known firmware configurations where this would cause issues. Fixes: 527d7d1b9949 ("nfp: read mailbox address from TLV caps") Signed-off-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-30nfp: add offloads on representorsJakub Kicinski1-0/+7
FW/HW can generally support the standard networking offloads on representors without any trouble. Add the ability for FW to advertise which features should be available on representors. Because representors are muxed on top of the vNIC we need to listen on feature changes of their lower devices, and update their features appropriately. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-19nfp: abm: add functions to update DSCP -> virtual queue mapJakub Kicinski1-0/+2
Learn how to set the DSCP map. FW uses a packed array which geometry depends on the number of supported priorities and virtual queues. Write code to assemble this map and to communicate the setting to the FW via mailbox. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-11nfp: replace long license headers with SPDXJakub Kicinski1-32/+2
Replace the repeated license text with SDPX identifiers. While at it bump the Copyright dates for files we touched this year. Signed-off-by: Edwin Peer <edwin.peer@netronome.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Nic Viljoen <nick.viljoen@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-08Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextDavid S. Miller1-1/+0
Alexei Starovoitov says: ==================== pull-request: bpf-next 2018-10-08 The following pull-request contains BPF updates for your *net-next* tree. The main changes are: 1) sk_lookup_[tcp|udp] and sk_release helpers from Joe Stringer which allow BPF programs to perform lookups for sockets in a network namespace. This would allow programs to determine early on in processing whether the stack is expecting to receive the packet, and perform some action (eg drop, forward somewhere) based on this information. 2) per-cpu cgroup local storage from Roman Gushchin. Per-cpu cgroup local storage is very similar to simple cgroup storage except all the data is per-cpu. The main goal of per-cpu variant is to implement super fast counters (e.g. packet counters), which don't require neither lookups, neither atomic operations in a fast path. The example of these hybrid counters is in selftests/bpf/netcnt_prog.c 3) allow HW offload of programs with BPF-to-BPF function calls from Quentin Monnet 4) support more than 64-byte key/value in HW offloaded BPF maps from Jakub Kicinski 5) rename of libbpf interfaces from Andrey Ignatov. libbpf is maturing as a library and should follow good practices in library design and implementation to play well with other libraries. This patch set brings consistent naming convention to global symbols. 6) relicense libbpf as LGPL-2.1 OR BSD-2-Clause from Alexei Starovoitov to let Apache2 projects use libbpf 7) various AF_XDP fixes from Björn and Magnus ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-02nfp: bpf: allow control message sizing for map opsJakub Kicinski1-1/+0
In current ABI the size of the messages carrying map elements was statically defined to at most 16 words of key and 16 words of value (NFP word is 4 bytes). We should not make this assumption and use the max key and value sizes from the BPF capability instead. To make sure old kernels don't get surprised with larger (or smaller) messages bump the FW ABI version to 3 when key/value size is different than 16 words. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-10-01nfp: warn on experimental TLV typesJakub Kicinski1-0/+8
Reserve two TLV types for feature development, and warn in the driver if they ever leak into production. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-27nfp: allow control message reception on data queuesJakub Kicinski1-0/+1
Port id 0xffffffff is reserved for control messages. Allow reception of messages with this id on data queues. Hand off a raw buffer to the higher layer code, without allocating SKB for max efficiency. The RX handle can't modify or keep the buffer, after it returns buffer is handed back over to the NIC RX free buffer list. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-02-16nfp: standardize FW header whitespaceMichael Rapson1-140/+140
The nfp_net_ctrl.h file used spaces for indentation in the past but tabs have crept in. Host driver files use tabs for indentation by default, so let's convert to tabs for consistency across the file and our drivers. Signed-off-by: Michael Rapson <michael.rapson@netronome.com> Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-02-08nfp: limit the number of TSO segmentsJakub Kicinski1-1/+4
Most FWs limit the number of TSO segments a frame can produce to 64. This is for fairness and efficiency (of FW datapath) reasons. If a frame with larger number of segments is submitted the FW will drop it. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-19nfp: read mailbox address from TLV capsJakub Kicinski1-4/+21
Allow specifying alternative vNIC mailbox location in TLV caps. This way we can size the mailbox to the needs and not necessarily waste 512B of ctrl memory space. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-19nfp: read ME frequency from vNIC ctrl memoryJakub Kicinski1-0/+7
PCIe island clock frequency is used when converting coalescing parameters from usecs to NFP timestamps. Most chips don't run at 1200MHz, allow FW to provide us with the real frequency. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-19nfp: add TLV capabilities to the BARJakub Kicinski1-3/+64
NFP is entirely programmable, including the PCI data interface. Using a fixed control BAR layout certainly makes implementations easier, but require careful considerations when space is allocated. Once BAR area is allocated to one feature nothing else can use it. Allocating space statically also requires it to be sized upfront, which leads to either unnecessary limitation or wastage. We currently have a 32bit capability word defined which tells drivers which application FW features are supported. Most of the bits are exhausted. The same bits are also reused for enabling specific features. Bulk of capabilities don't have a need for an enable bit, however, leading to confusion and wastage. TLVs seems like a better fit for expressing capabilities of applications running on programmable hardware. This patch leaves the front of the BAR as is, and declares a TLV capability start at offset 0x58. Most of the space up to 0x0d90 is already allocated, but the used space can be wrapped with RESERVED TLVs. E.g.: Address Type Length 0x0058 RESERVED 0xe00 /* Wrap basic structures */ 0x0e5c FEATURE_A 0x004 0x0e64 FEATURE_B 0x004 0x0e6c RESERVED 0x990 /* Wrap qeueue stats */ 0x1800 FEATURE_C 0x100 Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-10nfp: fix incumbent kdoc warningsJakub Kicinski1-55/+56
We should use % instead of @ for documenting preprocessor defines. Add missing documentation of __NFP_REPR_TYPE_MAX. This gets rid of all remaining kdoc warnings in the driver. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2017-10-09nfp: bpf: move to datapath ABI version 2Jakub Kicinski1-1/+1
Datapath ABI version 2 stores the packet information in LMEM instead of NNRs. We also have strict restrictions on which GPRs we can use. Only GPRs 0-23 are reserved for BPF. Adjust the static register locations and "ABI" registers. Note that packet length is packed with other info so we have to extract it into one of the scratch registers, OTOH since LMEM can be used in restricted operands we don't have to extract packet pointer. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-25nfp: add basic SR-IOV ndo functionsPablo Cascón1-0/+1
Add basic ndo_set/get_vf to support SR-IOV. VF to egress phy static mapping by now. Use vfcfg ABI version 2 to write the info to the FW and collect the return value from the mailbox. Signed-off-by: Pablo Cascón <pablo.cascon@netronome.com> Signed-off-by: Jimmy Kizito <jimmy.kizito@netronome.com> Signed-off-by: Rami Tomer <rami.tomer@netronome.com> Signed-off-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-19nfp: add VLAN filtering supportPablo Cascón1-0/+27
Add general use per-vNIC mailbox area and use it for VLAN filtering support. Initially proto is hardcoded to 802.1q. Signed-off-by: Pablo Cascón <pablo.cascon@netronome.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-07nfp: add control vNIC datapathJakub Kicinski1-0/+3
Since control vNICs don't have a netdev, they can't use napi and queuing stack provides. Add simple tasklet-based data receive and send of control messages with queuing on a skb_list. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-30nfp: add set_mac_address support while the interface is upPablo Cascón1-0/+2
Expose FW app ability to change MAC address at runtime. Make sure we only depend on it if FW app advertised the right capability. Signed-off-by: Pablo Cascón <pablo.cascon@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-16nfp: add CHECKSUM_COMPLETE supportJakub Kicinski1-1/+6
Introduce NFP_NET_CFG_CTRL_CSUM_COMPLETE capability and implement parsing of CHECKSUM_COMPLETE metadata. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Edwin Peer <edwin.peer@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-16nfp: version independent support for chained RSS metadataEdwin Peer1-1/+5
ABI version 4 introduced metadata chaining. Using the ABI version to signal metadata chaining precludes firmware that advertises new capabilities which rely on prepended metadata from working on older kernels. Capability bits are thus better suited to signalling the chained metadata format. A new version of the RSS capability is introduced to distinguish between the differing metadata formats for ABI versions other than 4. Signed-off-by: Edwin Peer <edwin.peer@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-16nfp: support LSO2 capabilityEdwin Peer1-1/+6
Firmware advertising the LSO2 capability exploits driver provided L3 and L4 offsets in order to avoid parsing packet headers in the TX path. The vlan field in struct nfp_net_tx_desc is repurposed, making TXVLAN a mutually exclusive configuration to LSO2. Signed-off-by: Edwin Peer <edwin.peer@netronome.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-05nfp: add support for .get_link_ksettings()Jakub Kicinski1-0/+13
Read link speed from the BAR. This provides very basic information and works for both PFs and VFs. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-09nfp: add support for reporting CRC32 hash functionJakub Kicinski1-1/+13
Some firmware images may reuse CRC32 hardware to compute RXHASH. Make sure we report the correct hash function. Note that we don't support changing functions at runtime. That would also require a few more additions to the way the key is set because different functions have different key sizes. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-01nfp: remove support for nfp3200Jakub Kicinski1-9/+4
Drop all code related to nfp3200. It was never widely deployed as a NIC. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-21nfp: bpf: add packet marking supportJakub Kicinski1-0/+7
Add missing ABI defines and eBPF instructions to allow mark to be passed on and extend prepend parsing on the RX path to pick it up from packet metadata. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-21nfp: bpf: add hardware bpf offloadJakub Kicinski1-3/+41
Add hardware bpf offload on our smart NICs. Detect if capable firmware is loaded and use it to load the code JITed with just added translator onto programmable engines. This commit only supports offloading cls_bpf in legacy mode (non-direct action). Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-16nfp: remove unused suspicious mask definesJakub Kicinski1-4/+0
NFP_NET_RXR_MASK sounds like a mask which could be used on NFP_NET_CFG_RXRS_ENABLE register but its value is quite strange. In fact there are no users of this define so let's just remove it. Same for TX rings. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-16nfp: correct names of constants in commentsJakub Kicinski1-3/+3
Documentation in comments lacks CFG in some names. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-03net: add driver for Netronome NFP4000/NFP6000 NIC VFsJakub Kicinski1-0/+323
Add driver for Virtual Functions for the Netronome's NFP-4000 and NFP-6000 based NICs. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Rolf Neugebauer <rolf.neugebauer@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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