linux-toradex.git/drivers/net/ethernet/meta/Kconfig, branch master

fbnic: Replace use of internal PCS w/ Designware XPCS

2025-11-27T09:41:31+00:00

As we have exposed the PCS registers via the SWMII we can now start looking
at connecting the XPCS driver to those registers and let it mange the PCS
instead of us doing it directly from the fbnic driver.

For now this just gets us the ability to detect link. The hope is in the
future to add some of the vendor specific registers to begin enabling XPCS
configuration of the interface.

Signed-off-by: Alexander Duyck 
Link: https://patch.msgid.link/176374325295.959489.14521115864034905277.stgit@ahduyck-xeon-server.home.arpa
Signed-off-by: Paolo Abeni

net: fbnic: Allow builds for all 64 bit architectures

2025-10-16T09:36:29+00:00

This enables aarch64 testing, but there's no reason we cannot support other
architectures.

Signed-off-by: Dimitri Daskalakis 
Signed-off-by: Jakub Kicinski 
Reviewed-by: Simon Horman 
Link: https://patch.msgid.link/20251013211449.1377054-3-dimitri.daskalakis1@gmail.com
Signed-off-by: Paolo Abeni

eth: fbnic: Add devlink dev flash support

2025-05-15T10:59:18+00:00

Add support to update the CMRT and control firmware as well as the UEFI
driver on fbnic using devlink dev flash.

Make sure the shutdown / quiescence paths like suspend take the devlink
lock to prevent them from interrupting the FW flashing process.

Signed-off-by: Lee Trager 
Signed-off-by: Jakub Kicinski 
Reviewed-by: Jacob Keller 
Reviewed-by: Simon Horman 
Link: https://patch.msgid.link/20250512190109.2475614-6-lee@trager.us
Signed-off-by: Paolo Abeni

eth: fbnic: add CONFIG_PTP_1588_CLOCK_OPTIONAL dependency

2024-10-20T15:17:31+00:00

fbnic fails to link as built-in when PTP support is in a loadable
module:

aarch64-linux-ld: drivers/net/ethernet/meta/fbnic/fbnic_ethtool.o: in function `fbnic_get_ts_info':
fbnic_ethtool.c:(.text+0x428): undefined reference to `ptp_clock_index'
aarch64-linux-ld: drivers/net/ethernet/meta/fbnic/fbnic_time.o: in function `fbnic_time_start':
fbnic_time.c:(.text+0x820): undefined reference to `ptp_schedule_worker'
aarch64-linux-ld: drivers/net/ethernet/meta/fbnic/fbnic_time.o: in function `fbnic_ptp_setup':
fbnic_time.c:(.text+0xa68): undefined reference to `ptp_clock_register'

Add the appropriate dependency to enforce this.

Fixes: 6a2b3ede9543 ("eth: fbnic: add RX packets timestamping support")
Signed-off-by: Arnd Bergmann 
Reviewed-by: Vadim Fedorenko 
Message-ID: <20241016062303.2551686-1-arnd@kernel.org>
Signed-off-by: Andrew Lunn

eth: fbnic: select DEVLINK and PAGE_POOL

2024-08-02T23:23:59+00:00

Build bot reports undefined references to devlink functions.
And local testing revealed undefined references to page_pool functions.

Based on a patch by Jakub Kicinski 

Fixes: 1a9d48892ea5 ("eth: fbnic: Allocate core device specific structures and devlink interface")
Reported-by: kernel test robot 
Closes: https://lore.kernel.org/oe-kbuild-all/202408011219.hiPmwwAs-lkp@intel.com/
Signed-off-by: Simon Horman 
Link: https://patch.msgid.link/20240802-fbnic-select-v2-1-41f82a3e0178@kernel.org
Signed-off-by: Jakub Kicinski

fbnic: Change kconfig prompt from S390=n to !S390

2024-07-27T01:24:50+00:00

In testing the recent kernel I found that the fbnic driver couldn't be
enabled on x86_64 builds. A bit of digging showed that the fbnic driver was
the only one to check for S390 to be n, all others had checked for !S390.
Since it is a boolean and not a tristate I am not sure it will be N. So
just update it to use the !S390 flag.

A quick check via "make menuconfig" verified that after making this change
there was an option to select the fbnic driver.

Fixes 0e03c643dc93 ("eth: fbnic: fix s390 build.")
Signed-off-by: Alexander Duyck 
Reviewed-by: Joe Damato 
Link: https://patch.msgid.link/172192698293.1903337.4255690118685300353.stgit@ahduyck-xeon-server.home.arpa
Signed-off-by: Jakub Kicinski

eth: fbnic: don't build the driver when skb has more than 21 frags

2024-07-19T14:36:34+00:00

Similarly to commit 0e03c643dc93 ("eth: fbnic: fix s390 build."),
the driver won't build if skb_shared_info has more than 25 frags
assuming a 64B cache line and 21 frags assuming a 128B cache line.

  (512 - 48 -  64) / 16 = 25
  (512 - 48 - 128) / 16 = 21

Fixes: 0cb4c0a13723 ("eth: fbnic: Implement Rx queue alloc/start/stop/free")
Signed-off-by: Jakub Kicinski 
Link: https://patch.msgid.link/20240717161600.1291544-1-kuba@kernel.org
Signed-off-by: Paolo Abeni

eth: fbnic: fix s390 build.

2024-07-17T13:25:14+00:00

Building the fbnic nn s390, yield a build bug:

In function ‘fbnic_config_drop_mode_rcq’,
    inlined from ‘fbnic_enable’ at drivers/net/ethernet/meta/fbnic/fbnic_txrx.c:1836:4:
././include/linux/compiler_types.h:510:45: error: call to ‘__compiletime_assert_919’ declared with attribute error: FIELD_PREP: value too large for the field

The relevant mask is 9 bits wide, and the related value is the cacheline
aligned size of struct skb_shared_info.

On s390 the cacheline size is 256 bytes, and skb_shared_info minimum
size on 64 bits system is 320 bytes.

Avoid building the driver for such arch.

Reported-by: kernel test robot 
Link: https://lore.kernel.org/202407170432.dYJQOWVz-lkp@intel.com/
Reported-by: Nathan Chancellor 
Fixes: 0cb4c0a13723 ("eth: fbnic: Implement Rx queue alloc/start/stop/free")
Signed-off-by: Paolo Abeni 
Link: https://patch.msgid.link/5dfefd3e90e77828f38e68854b171a5b8b8c6ede.1721215379.git.pabeni@redhat.com
Signed-off-by: Jakub Kicinski

eth: fbnic: Add link detection

2024-07-15T19:50:43+00:00

Add basic support for detecting the link and reporting it at the netdev
layer. For now we will just use the values reporeted by the firmware as the
link configuration and assume that is the current configuration of the MAC
and PCS.

With this we start the stubbing out of the phylink interface that will be
used to provide the configuration interface for ethtool in a future patch
set.

The phylink interface isn't an exact fit. As such we are currently working
around several issues in this patch set that we plan to address in the
future such as:
1. Support for FEC
2. Support for multiple lanes to handle 50GbaseR2 vs 50GbaseR1
3. Support for BMC

CC: Russell King 
CC: Andrew Lunn 
Signed-off-by: Alexander Duyck 
Link: https://patch.msgid.link/172079939835.1778861.5964790909718481811.stgit@ahduyck-xeon-server.home.arpa
Signed-off-by: Jakub Kicinski

eth: fbnic: Add scaffolding for Meta's NIC driver

2024-07-15T19:50:42+00:00

Create a bare-bones PCI driver for Meta's NIC.
Subsequent changes will flesh it out.

Signed-off-by: Alexander Duyck 
Reviewed-by: Andrew Lunn 
Link: https://patch.msgid.link/172079935646.1778861.9710282776096050607.stgit@ahduyck-xeon-server.home.arpa
Signed-off-by: Jakub Kicinski