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

iidc/ice/irdma: Update IDC to support multiple consumers

2025-05-09T18:35:43+00:00

In preparation of supporting more than a single core PCI driver
for RDMA, move ice specific structs like qset_params, qos_info
and qos_params from iidc_rdma.h to iidc_rdma_ice.h.

Previously, the ice driver was just exporting its entire PF struct
to the auxiliary driver, but since each core driver will have its own
different PF struct, implement a universal struct that all core drivers
can provide to the auxiliary driver through the probe call.

Reviewed-by: Przemek Kitszel 
Signed-off-by: Dave Ertman 
Co-developed-by: Mustafa Ismail 
Signed-off-by: Mustafa Ismail 
Co-developed-by: Shiraz Saleem 
Signed-off-by: Shiraz Saleem 
Co-developed-by: Tatyana Nikolova 
Signed-off-by: Tatyana Nikolova 
Signed-off-by: Tony Nguyen

ice: Replace ice specific DSCP mapping num with a kernel define

2025-04-30T20:09:08+00:00

Replace ice driver specific DSCP mapping number defines
ICE_DSCP_NUM_VAL and IIDC_MAX_DSCP_MAPPING with
an equivalent kernel define DSCP_MAX.

Reviewed-by: Przemek Kitszel 
Signed-off-by: Tatyana Nikolova 
Signed-off-by: Dave Ertman 
Reviewed-by: Simon Horman 
Signed-off-by: Tony Nguyen

iidc/ice/irdma: Break iidc.h into two headers

2025-04-30T20:09:08+00:00

In preparation of supporting more than a single core PCI driver
for RDMA, break the iidc_rdma.h header file into two more focused
headers.

Only the elements universal to all Intel drivers will remain in
the generic iidc_rdma.h header. Move the ice specific information
to an ice specific header file named iidc_rdma_ice.h.

Reviewed-by: Przemek Kitszel 
Signed-off-by: Dave Ertman 
Signed-off-by: Tatyana Nikolova 
Signed-off-by: Tony Nguyen

iidc/ice/irdma: Rename to iidc_* convention

2025-04-30T20:09:06+00:00

In preparation of supporting more than a single core PCI driver
for RDMA, homogenize naming to iidc_rdma_* and IIDC_RDMA_*
form.

Reviewed-by: Przemek Kitszel 
Signed-off-by: Dave Ertman 
Signed-off-by: Tatyana Nikolova 
Signed-off-by: Tony Nguyen

iidc/ice/irdma: Rename IDC header file

2025-04-30T15:31:49+00:00

To prepare for the IDC upgrade to support different CORE
PCI drivers, rename header file from iidc.h to iidc_rdma.h
since this files functionality is specifically for RDMA support.

Use net/dscp.h include in irdma osdep.h and DSCP_MAX type.h,
instead of iidc header and define.

Reviewed-by: Przemek Kitszel 
Signed-off-by: Dave Ertman 
Signed-off-by: Tatyana Nikolova 
Signed-off-by: Tony Nguyen

ice, irdma: move interrupts code to irdma

2025-02-05T17:04:57+00:00

Move responsibility of MSI-X requesting for RDMA feature from ice driver
to irdma driver. It is done to allow simple fallback when there is not
enough MSI-X available.

Change amount of MSI-X used for control from 4 to 1, as it isn't needed
to have more than one MSI-X for this purpose.

Reviewed-by: Jacob Keller 
Signed-off-by: Michal Swiatkowski 
Signed-off-by: Tony Nguyen

iavf: switch to Page Pool

2024-04-24T18:06:26+00:00

Now that the IAVF driver simply uses dev_alloc_page() + free_page() with
no custom recycling logics, it can easily be switched to using Page
Pool / libeth API instead.
This allows to removing the whole dancing around headroom, HW buffer
size, and page order. All DMA-for-device is now done in the PP core,
for-CPU -- in the libeth helper.
Use skb_mark_for_recycle() to bring back the recycling and restore the
performance. Speaking of performance: on par with the baseline and
faster with the PP optimization series applied. But the memory usage for
1500b MTU is now almost 2x lower (x86_64) thanks to allocating a page
every second descriptor.

Signed-off-by: Alexander Lobakin 
Signed-off-by: Tony Nguyen

net: intel: introduce {, Intel} Ethernet common library

2024-04-24T18:06:25+00:00

Not a secret there's a ton of code duplication between two and more Intel
ethernet modules.

Before introducing new changes, which would need to be copied over again,
start decoupling the already existing duplicate functionality into a new
module, which will be shared between several Intel Ethernet drivers.
Add the lookup table which converts 8/10-bit hardware packet type into
a parsed bitfield structure for easy checking packet format parameters,
such as payload level, IP version, etc. This is currently used by i40e,
ice and iavf and it's all the same in all three drivers.
The only difference introduced in this implementation is that instead of
defining a 256 (or 1024 in case of ice) element array, add unlikely()
condition to limit the input to 154 (current maximum non-reserved packet
type). There's no reason to waste 600 (or even 3600) bytes only to not
hurt very unlikely exception packets.
The hash computation function now takes payload level directly as a
pkt_hash_type. There's a couple cases when non-IP ptypes are marked as
L3 payload and in the previous versions their hash level would be 2, not
3. But skb_set_hash() only sees difference between L4 and non-L4, thus
this won't change anything at all.
The module is behind the hidden Kconfig symbol, which the drivers will
select when needed. The exports are behind 'LIBIE' namespace to limit
the scope of the functions.

Not that non-HW-specific symbols will live in yet another module,
libeth. This is done to easily distinguish pretty generic code ready
for reusing by any other vendor and/or for moving the layer up from
the code useful in Intel's 1-100G drivers only.

Signed-off-by: Alexander Lobakin 
Signed-off-by: Tony Nguyen

i40e: Annotate struct i40e_qvlist_info with __counted_by

2023-11-30T21:39:20+00:00

Prepare for the coming implementation by GCC and Clang of the __counted_by
attribute. Flexible array members annotated with __counted_by can have
their accesses bounds-checked at run-time via CONFIG_UBSAN_BOUNDS (for
array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family
functions).

As found with Coccinelle[1], add __counted_by for struct i40e_qvlist_info.

Cc: Tony Nguyen 
Cc: Shiraz Saleem 
Cc: Jakub Kicinski 
Cc: Jesse Brandeburg 
Cc: Gurucharan G 
Cc: "Gustavo A. R. Silva" 
Link: https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci [1]
Reviewed-by: "Gustavo A. R. Silva" 
Link: https://lore.kernel.org/r/20231003231838.work.510-kees@kernel.org
Signed-off-by: Kees Cook

Merge branch 'iwl-next' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/linux

2022-02-09T00:23:39+00:00

Nguyen, Anthony L says:

====================
iwl-next Intel Wired LAN Driver Updates 2022-02-07

Dave adds support for ice driver to provide DSCP QoS mappings to irdma
driver.

[1] https://lore.kernel.org/netdev/20220202191921.1638-1-shiraz.saleem@intel.com/

* 'iwl-next' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/linux:
  ice: add support for DSCP QoS for IDC
====================

Link: https://lore.kernel.org/r/20220207235921.1303522-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski