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af51d6bd0b
Test that PCI reset works correctly by verifying that only the expected reset methods are supported and that after issuing the reset the ifindex of the port changes. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
59 lines
1.3 KiB
Bash
Executable File
59 lines
1.3 KiB
Bash
Executable File
#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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#
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# Test that PCI reset works correctly by verifying that only the expected reset
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# methods are supported and that after issuing the reset the ifindex of the
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# port changes.
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lib_dir=$(dirname $0)/../../../net/forwarding
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ALL_TESTS="
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pci_reset_test
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"
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NUM_NETIFS=1
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source $lib_dir/lib.sh
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source $lib_dir/devlink_lib.sh
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pci_reset_test()
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{
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RET=0
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local bus=$(echo $DEVLINK_DEV | cut -d '/' -f 1)
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local bdf=$(echo $DEVLINK_DEV | cut -d '/' -f 2)
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if [ $bus != "pci" ]; then
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check_err 1 "devlink device is not a PCI device"
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log_test "pci reset"
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return
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fi
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if [ ! -f /sys/bus/pci/devices/$bdf/reset_method ]; then
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check_err 1 "reset is not supported"
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log_test "pci reset"
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return
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fi
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[[ $(cat /sys/bus/pci/devices/$bdf/reset_method) == "bus" ]]
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check_err $? "only \"bus\" reset method should be supported"
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local ifindex_pre=$(ip -j link show dev $swp1 | jq '.[]["ifindex"]')
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echo 1 > /sys/bus/pci/devices/$bdf/reset
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check_err $? "reset failed"
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# Wait for udev to rename newly created netdev.
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udevadm settle
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local ifindex_post=$(ip -j link show dev $swp1 | jq '.[]["ifindex"]')
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[[ $ifindex_pre != $ifindex_post ]]
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check_err $? "reset not performed"
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log_test "pci reset"
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}
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swp1=${NETIFS[p1]}
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tests_run
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exit $EXIT_STATUS
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