linux-stable.git/drivers/net/dsa, branch v6.16.2

net: dsa: b53: fix IP_MULTICAST_CTRL on BCM5325

2025-08-20T16:41:20+00:00

[ Upstream commit 044d5ce2788b165798bfd173548e61bf7b6baf4d ]

BCM5325 doesn't implement B53_UC_FWD_EN, B53_MC_FWD_EN or B53_IPMC_FWD_EN.

Reviewed-by: Florian Fainelli 
Signed-off-by: Álvaro Fernández Rojas 
Link: https://patch.msgid.link/20250614080000.1884236-9-noltari@gmail.com
Signed-off-by: Jakub Kicinski 
Signed-off-by: Sasha Levin

net: dsa: b53: prevent SWITCH_CTRL access on BCM5325

2025-08-20T16:41:18+00:00

[ Upstream commit 22ccaaca43440e90a3b68d2183045b42247dc4be ]

BCM5325 doesn't implement SWITCH_CTRL register so we should avoid reading
or writing it.

Reviewed-by: Florian Fainelli 
Signed-off-by: Álvaro Fernández Rojas 
Link: https://patch.msgid.link/20250614080000.1884236-8-noltari@gmail.com
Signed-off-by: Jakub Kicinski 
Signed-off-by: Sasha Levin

net: dsa: b53: prevent DIS_LEARNING access on BCM5325

2025-08-20T16:41:18+00:00

[ Upstream commit 800728abd9f83bda4de62a30ce62a8b41c242020 ]

BCM5325 doesn't implement DIS_LEARNING register so we should avoid reading
or writing it.

Reviewed-by: Florian Fainelli 
Signed-off-by: Álvaro Fernández Rojas 
Link: https://patch.msgid.link/20250614080000.1884236-10-noltari@gmail.com
Signed-off-by: Jakub Kicinski 
Signed-off-by: Sasha Levin

net: dsa: b53: prevent GMII_PORT_OVERRIDE_CTRL access on BCM5325

2025-08-20T16:41:18+00:00

[ Upstream commit 37883bbc45a8555d6eca88d3a9730504d2dac86c ]

BCM5325 doesn't implement GMII_PORT_OVERRIDE_CTRL register so we should
avoid reading or writing it.
PORT_OVERRIDE_RX_FLOW and PORT_OVERRIDE_TX_FLOW aren't defined on BCM5325
and we should use PORT_OVERRIDE_LP_FLOW_25 instead.

Reviewed-by: Florian Fainelli 
Signed-off-by: Álvaro Fernández Rojas 
Link: https://patch.msgid.link/20250614080000.1884236-12-noltari@gmail.com
Signed-off-by: Jakub Kicinski 
Signed-off-by: Sasha Levin

net: dsa: b53: fix b53_imp_vlan_setup for BCM5325

2025-08-20T16:41:18+00:00

[ Upstream commit c00df1018791185ea398f78af415a2a0aaa0c79c ]

CPU port should be B53_CPU_PORT instead of B53_CPU_PORT_25 for
B53_PVLAN_PORT_MASK register.

Reviewed-by: Florian Fainelli 
Signed-off-by: Álvaro Fernández Rojas 
Link: https://patch.msgid.link/20250614080000.1884236-14-noltari@gmail.com
Signed-off-by: Jakub Kicinski 
Signed-off-by: Sasha Levin

net: dsa: b53: ensure BCM5325 PHYs are enabled

2025-08-20T16:41:18+00:00

[ Upstream commit 966a83df36c6f27476ac3501771422e7852098bc ]

According to the datasheet, BCM5325 uses B53_PD_MODE_CTRL_25 register to
disable clocking to individual PHYs.
Only ports 1-4 can be enabled or disabled and the datasheet is explicit
about not toggling BIT(0) since it disables the PLL power and the switch.

Signed-off-by: Álvaro Fernández Rojas 
Reviewed-by: Florian Fainelli 
Link: https://patch.msgid.link/20250614080000.1884236-15-noltari@gmail.com
Signed-off-by: Jakub Kicinski 
Signed-off-by: Sasha Levin

net: dsa: microchip: Fix wrong rx drop MIB counter for KSZ8863

2025-08-15T14:38:54+00:00

[ Upstream commit 165a7f5db919ab68a45ae755cceb751e067273ef ]

When KSZ8863 support was first added to KSZ driver the RX drop MIB
counter was somehow defined as 0x105.  The TX drop MIB counter
starts at 0x100 for port 1, 0x101 for port 2, and 0x102 for port 3, so
the RX drop MIB counter should start at 0x103 for port 1, 0x104 for
port 2, and 0x105 for port 3.

There are 5 ports for KSZ8895, so its RX drop MIB counter starts at
0x105.

Fixes: 4b20a07e103f ("net: dsa: microchip: ksz8795: add support for ksz88xx chips")
Signed-off-by: Tristram Ha 
Reviewed-by: Oleksij Rempel 
Link: https://patch.msgid.link/20250723030403.56878-1-Tristram.Ha@microchip.com
Signed-off-by: Jakub Kicinski 
Signed-off-by: Sasha Levin

Merge tag 'net-6.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2025-06-12T16:50:36+00:00

Pull networking fixes from Jakub Kicinski:
 "Including fixes from bluetooth and wireless.

  Current release - regressions:

   - af_unix: allow passing cred for embryo without SO_PASSCRED/SO_PASSPIDFD

  Current release - new code bugs:

   - eth: airoha: correct enable mask for RX queues 16-31

   - veth: prevent NULL pointer dereference in veth_xdp_rcv when peer
     disappears under traffic

   - ipv6: move fib6_config_validate() to ip6_route_add(), prevent
     invalid routes

  Previous releases - regressions:

   - phy: phy_caps: don't skip better duplex match on non-exact match

   - dsa: b53: fix untagged traffic sent via cpu tagged with VID 0

   - Revert "wifi: mwifiex: Fix HT40 bandwidth issue.", it caused
     transient packet loss, exact reason not fully understood, yet

  Previous releases - always broken:

   - net: clear the dst when BPF is changing skb protocol (IPv4 <> IPv6)

   - sched: sfq: fix a potential crash on gso_skb handling

   - Bluetooth: intel: improve rx buffer posting to avoid causing issues
     in the firmware

   - eth: intel: i40e: make reset handling robust against multiple
     requests

   - eth: mlx5: ensure FW pages are always allocated on the local NUMA
     node, even when device is configure to 'serve' another node

   - wifi: ath12k: fix GCC_GCC_PCIE_HOT_RST definition for WCN7850,
     prevent kernel crashes

   - wifi: ath11k: avoid burning CPU in ath11k_debugfs_fw_stats_request()
     for 3 sec if fw_stats_done is not set"

* tag 'net-6.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (70 commits)
  selftests: drv-net: rss_ctx: Add test for ntuple rules targeting default RSS context
  net: ethtool: Don't check if RSS context exists in case of context 0
  af_unix: Allow passing cred for embryo without SO_PASSCRED/SO_PASSPIDFD.
  ipv6: Move fib6_config_validate() to ip6_route_add().
  net: drv: netdevsim: don't napi_complete() from netpoll
  net/mlx5: HWS, Add error checking to hws_bwc_rule_complex_hash_node_get()
  veth: prevent NULL pointer dereference in veth_xdp_rcv
  net_sched: remove qdisc_tree_flush_backlog()
  net_sched: ets: fix a race in ets_qdisc_change()
  net_sched: tbf: fix a race in tbf_change()
  net_sched: red: fix a race in __red_change()
  net_sched: prio: fix a race in prio_tune()
  net_sched: sch_sfq: reject invalid perturb period
  net: phy: phy_caps: Don't skip better duplex macth on non-exact match
  MAINTAINERS: Update Kuniyuki Iwashima's email address.
  selftests: net: add test case for NAT46 looping back dst
  net: clear the dst when changing skb protocol
  net/mlx5e: Fix number of lanes to UNKNOWN when using data_rate_oper
  net/mlx5e: Fix leak of Geneve TLV option object
  net/mlx5: HWS, make sure the uplink is the last destination
  ...

treewide, timers: Rename from_timer() to timer_container_of()

2025-06-08T07:07:37+00:00

Move this API to the canonical timer_*() namespace.

[ tglx: Redone against pre rc1 ]

Signed-off-by: Ingo Molnar 
Signed-off-by: Thomas Gleixner 
Link: https://lore.kernel.org/all/aB2X0jCKQO56WdMt@gmail.com

net: dsa: b53: fix untagged traffic sent via cpu tagged with VID 0

2025-06-06T00:42:37+00:00

When Linux sends out untagged traffic from a port, it will enter the CPU
port without any VLAN tag, even if the port is a member of a vlan
filtering bridge with a PVID egress untagged VLAN.

This makes the CPU port's PVID take effect, and the PVID's VLAN
table entry controls if the packet will be tagged on egress.

Since commit 45e9d59d3950 ("net: dsa: b53: do not allow to configure
VLAN 0") we remove bridged ports from VLAN 0 when joining or leaving a
VLAN aware bridge. But we also clear the untagged bit, causing untagged
traffic from the controller to become tagged with VID 0 (and priority
0).

Fix this by not touching the untagged map of VLAN 0. Additionally,
always keep the CPU port as a member, as the untag map is only effective
as long as there is at least one member, and we would remove it when
bridging all ports and leaving no standalone ports.

Since Linux (and the switch) treats VLAN 0 tagged traffic like untagged,
the actual impact of this is rather low, but this also prevented earlier
detection of the issue.

Fixes: 45e9d59d3950 ("net: dsa: b53: do not allow to configure VLAN 0")
Signed-off-by: Jonas Gorski 
Reviewed-by: Florian Fainelli 
Reviewed-by: Vladimir Oltean 
Link: https://patch.msgid.link/20250602194914.1011890-1-jonas.gorski@gmail.com
Signed-off-by: Jakub Kicinski