kernel.git/Documentation/networking/device_drivers/ethernet/meta, branch linux-rolling-stable

eth: fbnic: add OTP health reporter

2025-09-18T09:37:23Z

OTP memory ("fuses") are used for secure boot and anti-rollback protection. The OTP memory is ECC protected. Check for its health periodically to notice when the chip is starting to go bad. Signed-off-by: Jakub Kicinski Reviewed-by: Simon Horman Link: https://patch.msgid.link/20250916231420.1693955-10-kuba@kernel.org Signed-off-by: Paolo Abeni

eth: fbnic: report FW uptime in health diagnose

2025-09-18T09:37:23Z

FW crashes are detected based on uptime going back, expose the uptime via devlink health diagnose. $ devlink -j health diagnose pci/0000:01:00.0 reporter fw {"last_heartbeat":{"fw_uptime":{"sec":201,"msec":76}}} $ devlink -j health diagnose pci/0000:01:00.0 reporter fw last_heartbeat: fw_uptime: sec: 201 msec: 76 Reviewed-by: Lee Trager Signed-off-by: Jakub Kicinski Reviewed-by: Simon Horman Link: https://patch.msgid.link/20250916231420.1693955-9-kuba@kernel.org Signed-off-by: Paolo Abeni

eth: fbnic: add FW health reporter

2025-09-18T09:37:23Z

Add a health reporter to catch FW crashes. Dumping the reporter if FW has not crashed will create a snapshot of FW memory. Reviewed-by: Lee Trager Reviewed-by: Simon Horman Signed-off-by: Jakub Kicinski Link: https://patch.msgid.link/20250916231420.1693955-8-kuba@kernel.org Signed-off-by: Paolo Abeni

eth: fbnic: Collect packet statistics for XDP

2025-08-19T08:51:16Z

Add support for XDP statistics collection and reporting via rtnl_link and netdev_queue API. For XDP programs without frags support, fbnic requires MTU to be less than the HDS threshold. If an over-sized frame is received, the frame is dropped and recorded as rx_length_errors reported via ip stats to highlight that this is an error. Signed-off-by: Jakub Kicinski Signed-off-by: Mohsin Bashir Link: https://patch.msgid.link/20250813221319.3367670-9-mohsin.bashr@gmail.com Signed-off-by: Paolo Abeni

docs: fbnic: explain the ring config

2025-07-01T10:48:28Z

fbnic takes 4 parameters to configure the Rx queues. The semantics are similar to other existing NICs but confusing to newcomers. Document it. Signed-off-by: Jakub Kicinski Reviewed-by: Simon Horman Link: https://patch.msgid.link/20250626191554.32343-1-kuba@kernel.org Signed-off-by: Paolo Abeni

eth: fbnic: Add devlink dev flash support

2025-05-15T10:59:18Z

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 support for TTI HW stats

2025-04-15T09:23:13Z

Add coverage for the TX Extension (TEI) Interface (TTI) stats. We are tracking packets and control message drops because of credit exhaustion on the TX interface. Signed-off-by: Jakub Kicinski Signed-off-by: Mohsin Bashir Reviewed-by: Simon Horman Link: https://patch.msgid.link/20250410070859.4160768-6-mohsin.bashr@gmail.com Signed-off-by: Paolo Abeni

eth: fbnic: add support for TMI stats

2025-04-15T09:23:13Z

This patch add coverage for TMI stats including PTP stats and drop stats. PTP stats include illegal requests, bad timestamp and good timestamps. The bad timestamp and illegal request counters are reported under as `error` via `ethtool -T` Both these counters are individually being reported via `ethtool -S` The good timestamp stats are being reported as `pkts` via `ethtool -T` ethtool -S eth0 | grep "ptp" ptp_illegal_req: 0 ptp_good_ts: 0 ptp_bad_ts: 0 Signed-off-by: Jakub Kicinski Signed-off-by: Mohsin Bashir Reviewed-by: Simon Horman Link: https://patch.msgid.link/20250410070859.4160768-5-mohsin.bashr@gmail.com Signed-off-by: Paolo Abeni

eth: fbnic: add coverage for RXB stats

2025-04-15T09:23:13Z

This patch provides coverage to the RXB (RX Buffer) stats. RXB stats are divided into 3 sections: RXB enqueue, RXB FIFO, and RXB dequeue stats. The RXB enqueue/dequeue stats are indexed from 0-3 and cater for the input/output counters whereas, the RXB fifo stats are indexed from 0-7. The RXB also supports pause frame stats counters which we are leaving for a later patch. ethtool -S eth0 | grep rxb rxb_integrity_err0: 0 rxb_mac_err0: 0 rxb_parser_err0: 0 rxb_frm_err0: 0 rxb_drbo0_frames: 1433543 rxb_drbo0_bytes: 775949081 --- --- rxb_intf3_frames: 1195711 rxb_intf3_bytes: 739650210 rxb_pbuf3_frames: 1195711 rxb_pbuf3_bytes: 765948092 Signed-off-by: Jakub Kicinski Signed-off-by: Mohsin Bashir Reviewed-by: Simon Horman Link: https://patch.msgid.link/20250410070859.4160768-4-mohsin.bashr@gmail.com Signed-off-by: Paolo Abeni

eth: fbnic: add coverage for hw queue stats

2025-04-15T09:23:13Z

This patch provides support for hardware queue stats and covers packet errors for RX-DMA engine, RCQ drops and BDQ drops. The packet errors are also aggregated with the `rx_errors` stats in the `rtnl_link_stats` as well as with the `hw_drops` in the queue API. The RCQ and BDQ drops are aggregated with `rx_over_errors` in the `rtnl_link_stats` as well as with the `hw_drop_overruns` in the queue API. ethtool -S eth0 | grep -E 'rde' rde_0_pkt_err: 0 rde_0_pkt_cq_drop: 0 rde_0_pkt_bdq_drop: 0 --- --- rde_127_pkt_err: 0 rde_127_pkt_cq_drop: 0 rde_127_pkt_bdq_drop: 0 Signed-off-by: Jakub Kicinski Signed-off-by: Mohsin Bashir Reviewed-by: Simon Horman Link: https://patch.msgid.link/20250410070859.4160768-3-mohsin.bashr@gmail.com Signed-off-by: Paolo Abeni