linux-toradex.git/include/linux/avf, branch v6.16-rc6

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2025-03-26T16:32:10+00:00

Merge in late fixes to prepare for the 6.15 net-next PR.

No conflicts, adjacent changes:

drivers/net/ethernet/broadcom/bnxt/bnxt.c
  919f9f497dbc ("eth: bnxt: fix out-of-range access of vnic_info array")
  fe96d717d38e ("bnxt_en: Extend queue stop/start for TX rings")

Signed-off-by: Jakub Kicinski

virtchnl: make proto and filter action count unsigned

2025-03-18T16:38:16+00:00

The count field in virtchnl_proto_hdrs and virtchnl_filter_action_set
should never be negative while still being valid. Changing it from
int to u32 ensures proper handling of values in virtchnl messages in
driverrs and prevents unintended behavior.
In its current signed form, a negative count does not trigger
an error in ice driver but instead results in it being treated as 0.
This can lead to unexpected outcomes when processing messages.
By using u32, any invalid values will correctly trigger -EINVAL,
making error detection more robust.

Fixes: 1f7ea1cd6a374 ("ice: Enable FDIR Configure for AVF")
Reviewed-by: Jedrzej Jagielski 
Reviewed-by: Simon Horman 
Signed-off-by: Jan Glaza 
Signed-off-by: Martyna Szapar-Mudlaw 
Tested-by: Rafal Romanowski 
Signed-off-by: Tony Nguyen

iavf: add support for negotiating flexible RXDID format

2025-02-14T18:58:07+00:00

Enable support for VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC, to enable the VF
driver the ability to determine what Rx descriptor formats are
available. This requires sending an additional message during
initialization and reset, the VIRTCHNL_OP_GET_SUPPORTED_RXDIDS. This
operation requests the supported Rx descriptor IDs available from the
PF.

This is treated the same way that VLAN V2 capabilities are handled. Add
a new set of extended capability flags, used to process send and receipt
of the VIRTCHNL_OP_GET_SUPPORTED_RXDIDS message.

This ensures we finish negotiating for the supported descriptor formats
prior to beginning configuration of receive queues.

This change stores the supported format bitmap into the iavf_adapter
structure. Additionally, if VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC is enabled
by the PF, we need to make sure that the Rx queue configuration
specifies the format.

Signed-off-by: Jacob Keller 
Reviewed-by: Simon Horman 
Tested-by: Rafal Romanowski 
Co-developed-by: Mateusz Polchlopek 
Signed-off-by: Mateusz Polchlopek 
Signed-off-by: Tony Nguyen

virtchnl: add enumeration for the rxdid format

2025-02-14T18:58:07+00:00

Support for allowing VF to negotiate the descriptor format requires that
the VF specify which descriptor format to use when requesting Rx queues.
The VF is supposed to request the set of supported formats via the new
VIRTCHNL_OP_GET_SUPPORTED_RXDIDS, and then set one of the supported
formats in the rxdid field of the virtchnl_rxq_info structure.

The virtchnl.h header does not provide an enumeration of the format
values. The existing implementations in the PF directly use the values
from the DDP package.

Make the formats explicit by defining an enumeration of the RXDIDs.
Provide an enumeration for the values as well as the bit positions as
returned by the supported_rxdids data from the
VIRTCHNL_OP_GET_SUPPORTED_RXDIDS.

Signed-off-by: Jacob Keller 
Reviewed-by: Rahul Rameshbabu 
Reviewed-by: Simon Horman 
Reviewed-by: Alexander Lobakin 
Tested-by: Rafal Romanowski 
Signed-off-by: Mateusz Polchlopek 
Signed-off-by: Tony Nguyen

ice: support Rx timestamp on flex descriptor

2025-02-14T18:57:45+00:00

To support Rx timestamp offload, VIRTCHNL_OP_1588_PTP_CAPS is sent by
the VF to request PTP capability and responded by the PF what capability
is enabled for that VF.

Hardware captures timestamps which contain only 32 bits of nominal
nanoseconds, as opposed to the 64bit timestamps that the stack expects.
To convert 32b to 64b, we need a current PHC time.
VIRTCHNL_OP_1588_PTP_GET_TIME is sent by the VF and responded by the
PF with the current PHC time.

Signed-off-by: Simei Su 
Reviewed-by: Simon Horman 
Tested-by: Rafal Romanowski 
Co-developed-by: Mateusz Polchlopek 
Signed-off-by: Mateusz Polchlopek 
Signed-off-by: Tony Nguyen

virtchnl: add support for enabling PTP on iAVF

2025-02-14T17:48:33+00:00

Add support for allowing a VF to enable PTP feature - Rx timestamps

The new capability is gated by VIRTCHNL_VF_CAP_PTP, which must be
set by the VF to request access to the new operations. In addition, the
VIRTCHNL_OP_1588_PTP_CAPS command is used to determine the specific
capabilities available to the VF.

This support includes the following additional capabilities:

* Rx timestamps enabled in the Rx queues (when using flexible advanced
  descriptors)
* Read access to PHC time over virtchnl using
  VIRTCHNL_OP_1588_PTP_GET_TIME

Extra space is reserved in most structures to allow for future
extension (like set clock, Tx timestamps).  Additional opcode numbers
are reserved and space in the virtchnl_ptp_caps structure is
specifically set aside for this.
Additionally, each structure has some space reserved for future
extensions to allow some flexibility.

Signed-off-by: Jacob Keller 
Reviewed-by: Rahul Rameshbabu 
Reviewed-by: Simon Horman 
Reviewed-by: Alexander Lobakin 
Tested-by: Rafal Romanowski 
Signed-off-by: Mateusz Polchlopek 
Signed-off-by: Tony Nguyen

virtchnl: fix m68k build.

2024-10-22T13:54:11+00:00

The kernel test robot reported a build failure on m68k in the intel
driver due to the recent shapers-related changes.

The mentioned arch has funny alignment properties, let's be explicit
about the binary layout expectation introducing a padding field.

Fixes: 608a5c05c39b ("virtchnl: support queue rate limit and quanta size configuration")
Reported-by: kernel test robot 
Closes: https://lore.kernel.org/oe-kbuild-all/202410131710.71Wt6LKO-lkp@intel.com/
Reviewed-by: Alexander Lobakin 
Reviewed-by: Paul Menzel 
Reviewed-by: Jacob Keller 
Link: https://patch.msgid.link/e45d1c9f17356d431b03b419f60b8b763d2ff768.1729000481.git.pabeni@redhat.com
Signed-off-by: Paolo Abeni

virtchnl: support queue rate limit and quanta size configuration

2024-10-10T15:30:23+00:00

This patch adds new virtchnl opcodes and structures for rate limit
and quanta size configuration, which include:
1. VIRTCHNL_OP_CONFIG_QUEUE_BW, to configure max bandwidth for each
VF per queue.
2. VIRTCHNL_OP_CONFIG_QUANTA, to configure quanta size per queue.
3. VIRTCHNL_OP_GET_QOS_CAPS, VF queries current QoS configuration, such
as enabled TCs, arbiter type, up2tc and bandwidth of VSI node. The
configuration is previously set by DCB and PF, and now is the potential
QoS capability of VF. VF can take it as reference to configure queue TC
mapping.

Reviewed-by: Jiri Pirko 
Signed-off-by: Wenjun Wu 
Signed-off-by: Paolo Abeni 
Link: https://patch.msgid.link/839002f7bd6f63b985a060a51b079f6e6dbbe237.1728460186.git.pabeni@redhat.com
Signed-off-by: Jakub Kicinski

iavf: add support for offloading tc U32 cls filters

2024-08-13T21:51:29+00:00

Add support for offloading cls U32 filters. Only "skbedit queue_mapping"
and "drop" actions are supported. Also, only "ip" and "802_3" tc
protocols are allowed. The PF must advertise the VIRTCHNL_VF_OFFLOAD_TC_U32
capability flag.

Since the filters will be enabled via the FD stage at the PF, a new type
of FDIR filters is added and the existing list and state machine are used.

The new filters can be used to configure flow directors based on raw
(binary) pattern in the rx packet.

Examples:

0. # tc qdisc add dev enp175s0v0  ingress

1. Redirect UDP from src IP 192.168.2.1 to queue 12:

    # tc filter add dev  protocol ip ingress u32 \
	match u32 0x45000000 0xff000000 at 0  \
	match u32 0x00110000 0x00ff0000 at 8  \
	match u32 0xC0A80201 0xffffffff at 12 \
	match u32 0x00000000 0x00000000 at 24 \
	action skbedit queue_mapping 12 skip_sw

2. Drop all ICMP:

    # tc filter add dev  protocol ip ingress u32 \
	match u32 0x45000000 0xff000000 at 0  \
	match u32 0x00010000 0x00ff0000 at 8  \
	match u32 0x00000000 0x00000000 at 24 \
	action drop skip_sw

3. Redirect ICMP traffic from MAC 3c:fd:fe:a5:47:e0 to queue 7
   (note proto: 802_3):

   # tc filter add dev  protocol 802_3 ingress u32 \
	match u32 0x00003CFD 0x0000ffff at 4   \
	match u32 0xFEA547E0 0xffffffff at 8   \
	match u32 0x08004500 0xffffff00 at 12  \
	match u32 0x00000001 0x000000ff at 20  \
	match u32 0x0000 0x0000 at 40          \
	action skbedit queue_mapping 7 skip_sw

Notes on matches:
1 - All intermediate fields that are needed to parse the correct PTYPE
    must be provided (in e.g. 3: Ethernet Type 0x0800 in MAC, IP version
    and IP length: 0x45 and protocol: 0x01 (ICMP)).
2 - The last match must provide an offset that guarantees all required
    headers are accounted for, even if the last header is not matched.
    For example, in #2, the last match is 4 bytes at offset 24 starting
    from IP header, so the total is 14 (MAC) + 24 + 4 = 42, which is the
    sum of MAC+IP+ICMP headers.

Reviewed-by: Sridhar Samudrala 
Reviewed-by: Marcin Szycik 
Signed-off-by: Ahmed Zaki 
Tested-by: Rafal Romanowski 
Reviewed-by: Simon Horman 
Signed-off-by: Tony Nguyen

virtchnl: support raw packet in protocol header

2024-08-13T21:51:28+00:00

The patch extends existing virtchnl_proto_hdrs structure to allow VF
to pass a pair of buffers as packet data and mask that describe
a match pattern of a filter rule. Then the kernel PF driver is requested
to parse the pair of buffer and figure out low level hardware metadata
(ptype, profile, field vector.. ) to program the expected FDIR or RSS
rules.

Reviewed-by: Simon Horman 
Reviewed-by: Marcin Szycik 
Signed-off-by: Qi Zhang 
Signed-off-by: Junfeng Guo 
Signed-off-by: Ahmed Zaki 
Tested-by: Rafal Romanowski 
Signed-off-by: Tony Nguyen