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linux/drivers/net/ethernet/intel
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Christopher S M Hall 1a931c4f5e igc: add lock preventing multiple simultaneous PTM transactions 
Add a mutex around the PTM transaction to prevent multiple transactors

Multiple processes try to initiate a PTM transaction, one or all may
fail. This can be reproduced by running two instances of the
following:

$ sudo phc2sys -O 0 -i tsn0 -m

PHC2SYS exits with:

"ioctl PTP_OFFSET_PRECISE: Connection timed out" when the PTM transaction
 fails

Note: Normally two instance of PHC2SYS will not run, but one process
 should not break another.

Fixes: a90ec84837 ("igc: Add support for PTP getcrosststamp()")
Signed-off-by: Christopher S M Hall <christopher.s.hall@intel.com>
Reviewed-by: Corinna Vinschen <vinschen@redhat.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Mor Bar-Gabay <morx.bar.gabay@intel.com>
Acked-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
History 2025-04-11 09:13:28 -07:00
..
e1000 e1000: Hold RTNL when e1000_down can be called 2024-11-13 10:30:21 -08:00
e1000e treewide: Switch/rename to timer_delete[_sync]() 2025-04-05 10:30:12 +02:00
fm10k treewide: Switch/rename to timer_delete[_sync]() 2025-04-05 10:30:12 +02:00
i40e treewide: Switch/rename to timer_delete[_sync]() 2025-04-05 10:30:12 +02:00
iavf net: move misc netdev_lock flavors to a separate header 2025-03-08 09:06:50 -08:00
ice treewide: Switch/rename to timer_delete[_sync]() 2025-04-05 10:30:12 +02:00
idpf idpf: fix adapter NULL pointer dereference on reboot 2025-04-02 08:51:41 -07:00
igb treewide: Switch/rename to timer_delete[_sync]() 2025-04-05 10:30:12 +02:00
igbvf treewide: Switch/rename to timer_delete[_sync]() 2025-04-05 10:30:12 +02:00
igc igc: add lock preventing multiple simultaneous PTM transactions 2025-04-11 09:13:28 -07:00
ixgbe treewide: Switch/rename to timer_delete[_sync]() 2025-04-05 10:30:12 +02:00
ixgbevf treewide: Switch/rename to timer_delete[_sync]() 2025-04-05 10:30:12 +02:00
libeth module: Convert symbol namespace to string literal 2024-12-02 11:34:44 -08:00
libie module: Convert symbol namespace to string literal 2024-12-02 11:34:44 -08:00
e100.c treewide: Switch/rename to timer_delete[_sync]() 2025-04-05 10:30:12 +02:00
Kconfig iavf: add initial framework for registering PTP clock 2025-02-14 10:58:07 -08:00
Makefile net: intel: introduce {, Intel} Ethernet common library 2024-04-24 11:06:25 -07:00