]> git.baikalelectronics.ru Git - kernel.git/commit
i40e: Fix erroneous adapter reinitialization during recovery process
authorDawid Lukwinski <dawid.lukwinski@intel.com>
Fri, 15 Jul 2022 21:45:41 +0000 (14:45 -0700)
committerJakub Kicinski <kuba@kernel.org>
Tue, 19 Jul 2022 03:13:22 +0000 (20:13 -0700)
commit81cbe17894ac4e90cf5a4cb4116e80334cfe57fa
treeaaa043dcb1a1ae422585173c20cacec4cddde9d1
parente5a3413ddb8658a9f43498883ebf6f3e30b4c887
i40e: Fix erroneous adapter reinitialization during recovery process

Fix an issue when driver incorrectly detects state
of recovery process and erroneously reinitializes interrupts,
which results in a kernel error and call trace message.

The issue was caused by a combination of two factors:
1. Assuming the EMP reset issued after completing
firmware recovery means the whole recovery process is complete.
2. Erroneous reinitialization of interrupt vector after detecting
the above mentioned EMP reset.

Fixes (1) by changing how recovery state change is detected
and (2) by adjusting the conditional expression to ensure using proper
interrupt reinitialization method, depending on the situation.

Fixes: bdbcceb6036b ("i40e: Introduce recovery mode support")
Signed-off-by: Dawid Lukwinski <dawid.lukwinski@intel.com>
Signed-off-by: Jan Sokolowski <jan.sokolowski@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://lore.kernel.org/r/20220715214542.2968762-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
drivers/net/ethernet/intel/i40e/i40e_main.c