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netdevsim: add support for flash_update overwrite mask

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The devlink interface recently gained support for a new "overwrite mask"
parameter that allows specifying how various sub-sections of a flash
component are modified when updating.

Add support for this to netdevsim, to enable easily testing the
interface. Make the allowed overwrite mask values controllable via
a debugfs parameter. This enables testing a flow where the driver
rejects an unsupportable overwrite mask.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jacob Keller
2020-09-25 13:46:08 -07:00
committed by David S. Miller
parent 5d5b4128c4
commit cbb58368fb
3 changed files with 28 additions and 1 deletions
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18
tools/testing/selftests/drivers/net/netdevsim/devlink.sh
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@@ -26,6 +26,24 @@ fw_flash_test()
devlink dev flash $DL_HANDLE file dummy component fw.mgmt
check_err $? "Failed to flash with component attribute"
devlink dev flash $DL_HANDLE file dummy overwrite settings
check_fail $? "Flash with overwrite settings should be rejected"
echo "1"> $DEBUGFS_DIR/fw_update_overwrite_mask
check_err $? "Failed to change allowed overwrite mask"
devlink dev flash $DL_HANDLE file dummy overwrite settings
check_err $? "Failed to flash with settings overwrite enabled"
devlink dev flash $DL_HANDLE file dummy overwrite identifiers
check_fail $? "Flash with overwrite settings should be identifiers"
echo "3"> $DEBUGFS_DIR/fw_update_overwrite_mask
check_err $? "Failed to change allowed overwrite mask"
devlink dev flash $DL_HANDLE file dummy overwrite identifiers overwrite settings
check_err $? "Failed to flash with settings and identifiers overwrite enabled"
echo "n"> $DEBUGFS_DIR/fw_update_status
check_err $? "Failed to disable status updates"