linux/drivers/net, branch v6.15

Merge tag 'linux-can-fixes-for-6.15-20250521' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can

2025-05-22T10:32:38Z

Marc Kleine-Budde says: ==================== pull-request: can 2025-05-22 this is a pull request of 4 patches for net/main. The first 3 patches are by Axel Forsman and fix a ISR race condition in the kvaser_pciefd driver. The last patch is by Carlos Sanchez and fixes the reception of short error messages in the slcan driver. * tag 'linux-can-fixes-for-6.15-20250521' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can: can: slcan: allow reception of short error messages can: kvaser_pciefd: Continue parsing DMA buf after dropped RX can: kvaser_pciefd: Fix echo_skb race can: kvaser_pciefd: Force IRQ edge in case of nested IRQ ==================== Link: https://patch.msgid.link/20250522082344.490913-1-mkl@pengutronix.de Signed-off-by: Paolo Abeni

octeontx2-af: Fix APR entry mapping based on APR_LMT_CFG

2025-05-22T10:17:44Z

The current implementation maps the APR table using a fixed size, which can lead to incorrect mapping when the number of PFs and VFs varies. This patch corrects the mapping by calculating the APR table size dynamically based on the values configured in the APR_LMT_CFG register, ensuring accurate representation of APR entries in debugfs. Fixes: 0daa55d033b0 ("octeontx2-af: cn10k: debugfs for dumping LMTST map table"). Signed-off-by: Geetha sowjanya Link: https://patch.msgid.link/20250521060834.19780-3-gakula@marvell.com Signed-off-by: Paolo Abeni

octeontx2-af: Set LMT_ENA bit for APR table entries

2025-05-22T10:17:35Z

This patch enables the LMT line for a PF/VF by setting the LMT_ENA bit in the APR_LMT_MAP_ENTRY_S structure. Additionally, it simplifies the logic for calculating the LMTST table index by consistently using the maximum number of hw supported VFs (i.e., 256). Fixes: 873a1e3d207a ("octeontx2-af: cn10k: Setting up lmtst map table"). Signed-off-by: Subbaraya Sundeep Signed-off-by: Geetha sowjanya Reviewed-by: Michal Swiatkowski Link: https://patch.msgid.link/20250521060834.19780-2-gakula@marvell.com Signed-off-by: Paolo Abeni

octeontx2-pf: Avoid adding dcbnl_ops for LBK and SDP vf

2025-05-22T09:22:18Z

Priority flow control is not supported for LBK and SDP vf. This patch adds support to not add dcbnl_ops for LBK and SDP vf. Fixes: 8e67558177f8 ("octeontx2-pf: PFC config support with DCBx") Signed-off-by: Suman Ghosh Reviewed-by: Simon Horman Link: https://patch.msgid.link/20250519072658.2960851-1-sumang@marvell.com Signed-off-by: Paolo Abeni

idpf: fix idpf_vport_splitq_napi_poll()

2025-05-22T03:43:15Z

idpf_vport_splitq_napi_poll() can incorrectly return @budget after napi_complete_done() has been called. This violates NAPI rules, because after napi_complete_done(), current thread lost napi ownership. Move the test against POLL_MODE before the napi_complete_done(). Fixes: c2d548cad150 ("idpf: add TX splitq napi poll support") Reported-by: Peter Newman Closes: https://lore.kernel.org/netdev/20250520121908.1805732-1-edumazet@google.com/T/#u Signed-off-by: Eric Dumazet Cc: Joshua Hay Cc: Alan Brady Cc: Madhu Chittim Cc: Phani Burra Cc: Pavan Kumar Linga Link: https://patch.msgid.link/20250520124030.1983936-1-edumazet@google.com Signed-off-by: Jakub Kicinski

net: hibmcge: fix wrong ndo.open() after reset fail issue.

2025-05-21T22:53:51Z

If the driver reset fails, it may not work properly. Therefore, the ndo.open() operation should be rejected. In this patch, the driver calls netif_device_detach() before the reset and calls netif_device_attach() after the reset succeeds. If the reset fails, netif_device_attach() is not called. Therefore, netdev does not present and cannot be opened. If reset fails, only the PCI reset (via sysfs) can be used to attempt recovery. Fixes: 3f5a61f6d504 ("net: hibmcge: Add reset supported in this module") Signed-off-by: Jijie Shao Reviewed-by: Simon Horman Link: https://patch.msgid.link/20250517095828.1763126-3-shaojijie@huawei.com Signed-off-by: Jakub Kicinski

net: hibmcge: fix incorrect statistics update issue

2025-05-21T22:53:51Z

When the user dumps statistics, the hibmcge driver automatically updates all statistics. If the driver is performing the reset operation, the error data of 0xFFFFFFFF is updated. Therefore, if the driver is resetting, the hbg_update_stats_by_info() needs to return directly. Fixes: c0bf9bf31e79 ("net: hibmcge: Add support for dump statistics") Signed-off-by: Jijie Shao Reviewed-by: Simon Horman Link: https://patch.msgid.link/20250517095828.1763126-2-shaojijie@huawei.com Signed-off-by: Jakub Kicinski

can: slcan: allow reception of short error messages

2025-05-21T08:12:05Z

Allows slcan to receive short messages (typically errors) from the serial interface. When error support was added to slcan protocol in b32ff4668544e1333b694fcc7812b2d7397b4d6a ("can: slcan: extend the protocol with error info") the minimum valid message size changed from 5 (minimum standard can frame tIII0) to 3 ("e1a" is a valid protocol message, it is one of the examples given in the comments for slcan_bump_err() ), but the check for minimum message length prodicating all decoding was not adjusted. This makes short error messages discarded and error frames not being generated. This patch changes the minimum length to the new minimum (3 characters, excluding terminator, is now a valid message). Signed-off-by: Carlos Sanchez Fixes: b32ff4668544 ("can: slcan: extend the protocol with error info") Reviewed-by: Vincent Mailhol Link: https://patch.msgid.link/20250520102305.1097494-1-carlossanchez@geotab.com Cc: stable@vger.kernel.org Signed-off-by: Marc Kleine-Budde

net: lan743x: Restore SGMII CTRL register on resume

2025-05-21T02:44:17Z

SGMII_CTRL register, which specifies the active interface, was not properly restored when resuming from suspend. This led to incorrect interface selection after resume particularly in scenarios involving the FPGA. To fix this: - Move the SGMII_CTRL setup out of the probe function. - Initialize the register in the hardware initialization helper function, which is called during both device initialization and resume. This ensures the interface configuration is consistently restored after suspend/resume cycles. Fixes: a46d9d37c4f4f ("net: lan743x: Add support for SGMII interface") Signed-off-by: Thangaraj Samynathan Link: https://patch.msgid.link/20250516035719.117960-1-thangaraj.s@microchip.com Signed-off-by: Jakub Kicinski

bnxt_en: Fix netdev locking in ULP IRQ functions

2025-05-21T01:52:11Z

netdev_lock is already held when calling bnxt_ulp_irq_stop() and bnxt_ulp_irq_restart(). When converting rtnl_lock to netdev_lock, the original code was rtnl_dereference() to indicate that rtnl_lock was already held. rcu_dereference_protected() is the correct conversion after replacing rtnl_lock with netdev_lock. Add a new helper netdev_lock_dereference() similar to rtnl_dereference(). Fixes: 004b5008016a ("eth: bnxt: remove most dependencies on RTNL") Reviewed-by: Andy Gospodarek Reviewed-by: Pavan Chebbi Signed-off-by: Michael Chan Reviewed-by: Simon Horman Link: https://patch.msgid.link/20250519204130.3097027-2-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski