[PATCH net v2 0/4] ibmvnic: Harden device commands and queries
Thomas Falcon
tlfalcon at linux.ibm.com
Tue Nov 26 10:12:52 AEDT 2019
This patch series fixes some shortcomings with the current
VNIC device command implementation. The first patch fixes
the initialization of driver completion structures used
for device commands. Additionally, all waits for device
commands are bounded with a timeout in the event that the
device does not respond or becomes inoperable. Finally,
serialize queries to retain the integrity of device return
codes.
Changes in v2:
- included header comment for ibmvnic_wait_for_completion
- removed open-coded loop in patch 3/4, suggested by Jakub
- ibmvnic_wait_for_completion accepts timeout value in milliseconds
instead of jiffies
- timeout calculations cleaned up and completed before wait loop
- included missing mutex_destroy calls, suggested by Jakub
- included comment before mutex declaration
Thomas Falcon (4):
ibmvnic: Fix completion structure initialization
ibmvnic: Terminate waiting device threads after loss of service
ibmvnic: Bound waits for device queries
ibmvnic: Serialize device queries
drivers/net/ethernet/ibm/ibmvnic.c | 192 +++++++++++++++++++++++++++++++------
drivers/net/ethernet/ibm/ibmvnic.h | 2 +
2 files changed, 167 insertions(+), 27 deletions(-)
--
2.12.3
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