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068d8b75c1
mirror_ubuntu-kernels/drivers/net/ethernet/intel
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Tirthendu Sarkar 068d8b75c1 i40e: sync next_to_clean and next_to_process for programming status desc 
When a programming status desc is encountered on the rx_ring,
next_to_process is bumped along with cleaned_count but next_to_clean is
not. This causes I40E_DESC_UNUSED() macro to misbehave resulting in
overwriting whole ring with new buffers.

Update next_to_clean to point to next_to_process on seeing a programming
status desc if not in the middle of handling a multi-frag packet. Also,
bump cleaned_count only for such case as otherwise next_to_clean buffer
may be returned to hardware on reaching clean_threshold.

Fixes: e9031f2da1 ("i40e: introduce next_to_process to i40e_ring")
Suggested-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Reported-by: hq.dev+kernel@msdfc.xyz
Reported by: Solomon Peachy <pizza@shaftnet.org>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217678
Tested-by: hq.dev+kernel@msdfc.xyz
Tested by: Indrek Järve <incx@dustbite.net>
Signed-off-by: Tirthendu Sarkar <tirthendu.sarkar@intel.com>
Tested-by: Arpana Arland <arpanax.arland@intel.com> (A Contingent worker at Intel)
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Acked-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Link: https://lore.kernel.org/r/20231019203852.3663665-1-jacob.e.keller@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-10-20 18:17:11 -07:00
..
e1000 net: e1000: Remove unused declarations 2023-08-13 12:28:03 +01:00
e1000e e1000e: Add support for the next LOM generation 2023-08-24 12:55:25 -07:00
fm10k fm10k: Remove unnecessary aer.h include 2023-03-08 23:34:39 -08:00
i40e i40e: sync next_to_clean and next_to_process for programming status desc 2023-10-20 18:17:11 -07:00
iavf iavf: initialize waitqueues before starting watchdog_task 2023-10-20 11:45:07 +01:00
ice ice: Fix safe mode when DDP is missing 2023-10-13 17:57:05 -07:00
igb igb: Fix potential memory leak in igb_add_ethtool_nfc_entry 2023-10-20 13:29:40 +01:00
igbvf igbvf: Change IGBVF_MIN to allow set rx/tx value between 64 and 80 2023-09-05 10:52:08 -07:00
igc igc: Fix ambiguity in the ethtool advertising 2023-10-20 18:15:38 -07:00
ixgbe ixgbe: fix crash with empty VF macvlan list 2023-10-10 11:31:50 +02:00
ixgbevf ixgbevf: Remove unused function declarations 2023-08-04 18:03:00 -07:00
e100.c e100: Fix possible use after free in e100_xmit_prepare 2022-11-23 08:38:22 -08:00
Kconfig ixgb: Remove ixgb driver 2023-03-19 10:51:07 +00:00
Makefile ixgb: Remove ixgb driver 2023-03-19 10:51:07 +00:00