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0001 #!/bin/bash
0002 # SPDX-License-Identifier: GPL-2.0
0003 
0004 lib_dir=$(dirname $0)/../../../net/forwarding
0005 
0006 ALL_TESTS="fw_flash_test params_test regions_test reload_test \
0007            netns_reload_test resource_test dev_info_test \
0008            empty_reporter_test dummy_reporter_test rate_test"
0009 NUM_NETIFS=0
0010 source $lib_dir/lib.sh
0011 
0012 BUS_ADDR=10
0013 PORT_COUNT=4
0014 VF_COUNT=4
0015 DEV_NAME=netdevsim$BUS_ADDR
0016 SYSFS_NET_DIR=/sys/bus/netdevsim/devices/$DEV_NAME/net/
0017 DEBUGFS_DIR=/sys/kernel/debug/netdevsim/$DEV_NAME/
0018 DL_HANDLE=netdevsim/$DEV_NAME
0019 
0020 fw_flash_test()
0021 {
0022         RET=0
0023 
0024         devlink dev flash $DL_HANDLE file dummy
0025         check_err $? "Failed to flash with status updates on"
0026 
0027         devlink dev flash $DL_HANDLE file dummy component fw.mgmt
0028         check_err $? "Failed to flash with component attribute"
0029 
0030         devlink dev flash $DL_HANDLE file dummy overwrite settings
0031         check_fail $? "Flash with overwrite settings should be rejected"
0032 
0033         echo "1"> $DEBUGFS_DIR/fw_update_overwrite_mask
0034         check_err $? "Failed to change allowed overwrite mask"
0035 
0036         devlink dev flash $DL_HANDLE file dummy overwrite settings
0037         check_err $? "Failed to flash with settings overwrite enabled"
0038 
0039         devlink dev flash $DL_HANDLE file dummy overwrite identifiers
0040         check_fail $? "Flash with overwrite settings should be identifiers"
0041 
0042         echo "3"> $DEBUGFS_DIR/fw_update_overwrite_mask
0043         check_err $? "Failed to change allowed overwrite mask"
0044 
0045         devlink dev flash $DL_HANDLE file dummy overwrite identifiers overwrite settings
0046         check_err $? "Failed to flash with settings and identifiers overwrite enabled"
0047 
0048         echo "n"> $DEBUGFS_DIR/fw_update_status
0049         check_err $? "Failed to disable status updates"
0050 
0051         devlink dev flash $DL_HANDLE file dummy
0052         check_err $? "Failed to flash with status updates off"
0053 
0054         log_test "fw flash test"
0055 }
0056 
0057 param_get()
0058 {
0059         local name=$1
0060 
0061         cmd_jq "devlink dev param show $DL_HANDLE name $name -j" \
0062                '.[][][].values[] | select(.cmode == "driverinit").value'
0063 }
0064 
0065 param_set()
0066 {
0067         local name=$1
0068         local value=$2
0069 
0070         devlink dev param set $DL_HANDLE name $name cmode driverinit value $value
0071 }
0072 
0073 check_value()
0074 {
0075         local name=$1
0076         local phase_name=$2
0077         local expected_param_value=$3
0078         local expected_debugfs_value=$4
0079         local value
0080 
0081         value=$(param_get $name)
0082         check_err $? "Failed to get $name param value"
0083         [ "$value" == "$expected_param_value" ]
0084         check_err $? "Unexpected $phase_name $name param value"
0085         value=$(<$DEBUGFS_DIR/$name)
0086         check_err $? "Failed to get $name debugfs value"
0087         [ "$value" == "$expected_debugfs_value" ]
0088         check_err $? "Unexpected $phase_name $name debugfs value"
0089 }
0090 
0091 params_test()
0092 {
0093         RET=0
0094 
0095         local max_macs
0096         local test1
0097 
0098         check_value max_macs initial 32 32
0099         check_value test1 initial true Y
0100 
0101         param_set max_macs 16
0102         check_err $? "Failed to set max_macs param value"
0103         param_set test1 false
0104         check_err $? "Failed to set test1 param value"
0105 
0106         check_value max_macs post-set 16 32
0107         check_value test1 post-set false Y
0108 
0109         devlink dev reload $DL_HANDLE
0110 
0111         check_value max_macs post-reload 16 16
0112         check_value test1 post-reload false N
0113 
0114         log_test "params test"
0115 }
0116 
0117 check_region_size()
0118 {
0119         local name=$1
0120         local size
0121 
0122         size=$(devlink region show $DL_HANDLE/$name -j | jq -e -r '.[][].size')
0123         check_err $? "Failed to get $name region size"
0124         [ $size -eq 32768 ]
0125         check_err $? "Invalid $name region size"
0126 }
0127 
0128 check_region_snapshot_count()
0129 {
0130         local name=$1
0131         local phase_name=$2
0132         local expected_count=$3
0133         local count
0134 
0135         count=$(devlink region show $DL_HANDLE/$name -j | jq -e -r '.[][].snapshot | length')
0136         [ $count -eq $expected_count ]
0137         check_err $? "Unexpected $phase_name snapshot count"
0138 }
0139 
0140 regions_test()
0141 {
0142         RET=0
0143 
0144         local count
0145 
0146         check_region_size dummy
0147         check_region_snapshot_count dummy initial 0
0148 
0149         echo ""> $DEBUGFS_DIR/take_snapshot
0150         check_err $? "Failed to take first dummy region snapshot"
0151         check_region_snapshot_count dummy post-first-snapshot 1
0152 
0153         echo ""> $DEBUGFS_DIR/take_snapshot
0154         check_err $? "Failed to take second dummy region snapshot"
0155         check_region_snapshot_count dummy post-second-snapshot 2
0156 
0157         echo ""> $DEBUGFS_DIR/take_snapshot
0158         check_err $? "Failed to take third dummy region snapshot"
0159         check_region_snapshot_count dummy post-third-snapshot 3
0160 
0161         devlink region del $DL_HANDLE/dummy snapshot 1
0162         check_err $? "Failed to delete first dummy region snapshot"
0163 
0164         check_region_snapshot_count dummy post-first-delete 2
0165 
0166         devlink region new $DL_HANDLE/dummy snapshot 25
0167         check_err $? "Failed to create a new snapshot with id 25"
0168 
0169         check_region_snapshot_count dummy post-first-request 3
0170 
0171         devlink region dump $DL_HANDLE/dummy snapshot 25 >> /dev/null
0172         check_err $? "Failed to dump snapshot with id 25"
0173 
0174         devlink region read $DL_HANDLE/dummy snapshot 25 addr 0 len 1 >> /dev/null
0175         check_err $? "Failed to read snapshot with id 25 (1 byte)"
0176 
0177         devlink region read $DL_HANDLE/dummy snapshot 25 addr 128 len 128 >> /dev/null
0178         check_err $? "Failed to read snapshot with id 25 (128 bytes)"
0179 
0180         devlink region read $DL_HANDLE/dummy snapshot 25 addr 128 len $((1<<32)) >> /dev/null
0181         check_err $? "Failed to read snapshot with id 25 (oversized)"
0182 
0183         devlink region read $DL_HANDLE/dummy snapshot 25 addr $((1<<32)) len 128 >> /dev/null 2>&1
0184         check_fail $? "Bad read of snapshot with id 25 did not fail"
0185 
0186         devlink region del $DL_HANDLE/dummy snapshot 25
0187         check_err $? "Failed to delete snapshot with id 25"
0188 
0189         check_region_snapshot_count dummy post-second-delete 2
0190 
0191         sid=$(devlink -j region new $DL_HANDLE/dummy | jq '.[][][][]')
0192         check_err $? "Failed to create a new snapshot with id allocated by the kernel"
0193 
0194         check_region_snapshot_count dummy post-first-request 3
0195 
0196         devlink region dump $DL_HANDLE/dummy snapshot $sid >> /dev/null
0197         check_err $? "Failed to dump a snapshot with id allocated by the kernel"
0198 
0199         devlink region del $DL_HANDLE/dummy snapshot $sid
0200         check_err $? "Failed to delete snapshot with id allocated by the kernel"
0201 
0202         check_region_snapshot_count dummy post-first-request 2
0203 
0204         log_test "regions test"
0205 }
0206 
0207 reload_test()
0208 {
0209         RET=0
0210 
0211         devlink dev reload $DL_HANDLE
0212         check_err $? "Failed to reload"
0213 
0214         echo "y"> $DEBUGFS_DIR/fail_reload
0215         check_err $? "Failed to setup devlink reload to fail"
0216 
0217         devlink dev reload $DL_HANDLE
0218         check_fail $? "Unexpected success of devlink reload"
0219 
0220         echo "n"> $DEBUGFS_DIR/fail_reload
0221         check_err $? "Failed to setup devlink reload not to fail"
0222 
0223         devlink dev reload $DL_HANDLE
0224         check_err $? "Failed to reload after set not to fail"
0225 
0226         echo "y"> $DEBUGFS_DIR/dont_allow_reload
0227         check_err $? "Failed to forbid devlink reload"
0228 
0229         devlink dev reload $DL_HANDLE
0230         check_fail $? "Unexpected success of devlink reload"
0231 
0232         echo "n"> $DEBUGFS_DIR/dont_allow_reload
0233         check_err $? "Failed to re-enable devlink reload"
0234 
0235         devlink dev reload $DL_HANDLE
0236         check_err $? "Failed to reload after re-enable"
0237 
0238         log_test "reload test"
0239 }
0240 
0241 netns_reload_test()
0242 {
0243         RET=0
0244 
0245         ip netns add testns1
0246         check_err $? "Failed add netns \"testns1\""
0247         ip netns add testns2
0248         check_err $? "Failed add netns \"testns2\""
0249 
0250         devlink dev reload $DL_HANDLE netns testns1
0251         check_err $? "Failed to reload into netns \"testns1\""
0252 
0253         devlink -N testns1 dev reload $DL_HANDLE netns testns2
0254         check_err $? "Failed to reload from netns \"testns1\" into netns \"testns2\""
0255 
0256         ip netns del testns2
0257         ip netns del testns1
0258 
0259         log_test "netns reload test"
0260 }
0261 
0262 DUMMYDEV="dummytest"
0263 
0264 res_val_get()
0265 {
0266         local netns=$1
0267         local parentname=$2
0268         local name=$3
0269         local type=$4
0270 
0271         cmd_jq "devlink -N $netns resource show $DL_HANDLE -j" \
0272                ".[][][] | select(.name == \"$parentname\").resources[] \
0273                 | select(.name == \"$name\").$type"
0274 }
0275 
0276 resource_test()
0277 {
0278         RET=0
0279 
0280         ip netns add testns1
0281         check_err $? "Failed add netns \"testns1\""
0282         ip netns add testns2
0283         check_err $? "Failed add netns \"testns2\""
0284 
0285         devlink dev reload $DL_HANDLE netns testns1
0286         check_err $? "Failed to reload into netns \"testns1\""
0287 
0288         # Create dummy dev to add the address and routes on.
0289 
0290         ip -n testns1 link add name $DUMMYDEV type dummy
0291         check_err $? "Failed create dummy device"
0292         ip -n testns1 link set $DUMMYDEV up
0293         check_err $? "Failed bring up dummy device"
0294         ip -n testns1 a a 192.0.1.1/24 dev $DUMMYDEV
0295         check_err $? "Failed add an IP address to dummy device"
0296 
0297         local occ=$(res_val_get testns1 IPv4 fib occ)
0298         local limit=$((occ+1))
0299 
0300         # Set fib size limit to handle one another route only.
0301 
0302         devlink -N testns1 resource set $DL_HANDLE path IPv4/fib size $limit
0303         check_err $? "Failed to set IPv4/fib resource size"
0304         local size_new=$(res_val_get testns1 IPv4 fib size_new)
0305         [ "$size_new" -eq "$limit" ]
0306         check_err $? "Unexpected \"size_new\" value (got $size_new, expected $limit)"
0307 
0308         devlink -N testns1 dev reload $DL_HANDLE
0309         check_err $? "Failed to reload"
0310         local size=$(res_val_get testns1 IPv4 fib size)
0311         [ "$size" -eq "$limit" ]
0312         check_err $? "Unexpected \"size\" value (got $size, expected $limit)"
0313 
0314         # Insert 2 routes, the first is going to be inserted,
0315         # the second is expected to fail to be inserted.
0316 
0317         ip -n testns1 r a 192.0.2.0/24 via 192.0.1.2
0318         check_err $? "Failed to add route"
0319 
0320         ip -n testns1 r a 192.0.3.0/24 via 192.0.1.2
0321         check_fail $? "Unexpected successful route add over limit"
0322 
0323         # Now create another dummy in second network namespace and
0324         # insert two routes. That is over the limit of the netdevsim
0325         # instance in the first namespace. Move the netdevsim instance
0326         # into the second namespace and expect it to fail.
0327 
0328         ip -n testns2 link add name $DUMMYDEV type dummy
0329         check_err $? "Failed create dummy device"
0330         ip -n testns2 link set $DUMMYDEV up
0331         check_err $? "Failed bring up dummy device"
0332         ip -n testns2 a a 192.0.1.1/24 dev $DUMMYDEV
0333         check_err $? "Failed add an IP address to dummy device"
0334         ip -n testns2 r a 192.0.2.0/24 via 192.0.1.2
0335         check_err $? "Failed to add route"
0336         ip -n testns2 r a 192.0.3.0/24 via 192.0.1.2
0337         check_err $? "Failed to add route"
0338 
0339         devlink -N testns1 dev reload $DL_HANDLE netns testns2
0340         check_fail $? "Unexpected successful reload from netns \"testns1\" into netns \"testns2\""
0341 
0342         devlink -N testns2 resource set $DL_HANDLE path IPv4/fib size ' -1'
0343         check_err $? "Failed to reset IPv4/fib resource size"
0344 
0345         devlink -N testns2 dev reload $DL_HANDLE netns 1
0346         check_err $? "Failed to reload devlink back"
0347 
0348         ip netns del testns2
0349         ip netns del testns1
0350 
0351         log_test "resource test"
0352 }
0353 
0354 info_get()
0355 {
0356         local name=$1
0357 
0358         cmd_jq "devlink dev info $DL_HANDLE -j" ".[][][\"$name\"]" "-e"
0359 }
0360 
0361 dev_info_test()
0362 {
0363         RET=0
0364 
0365         driver=$(info_get "driver")
0366         check_err $? "Failed to get driver name"
0367         [ "$driver" == "netdevsim" ]
0368         check_err $? "Unexpected driver name $driver"
0369 
0370         log_test "dev_info test"
0371 }
0372 
0373 empty_reporter_test()
0374 {
0375         RET=0
0376 
0377         devlink health show $DL_HANDLE reporter empty >/dev/null
0378         check_err $? "Failed show empty reporter"
0379 
0380         devlink health dump show $DL_HANDLE reporter empty >/dev/null
0381         check_err $? "Failed show dump of empty reporter"
0382 
0383         devlink health diagnose $DL_HANDLE reporter empty >/dev/null
0384         check_err $? "Failed diagnose empty reporter"
0385 
0386         devlink health recover $DL_HANDLE reporter empty
0387         check_err $? "Failed recover empty reporter"
0388 
0389         log_test "empty reporter test"
0390 }
0391 
0392 check_reporter_info()
0393 {
0394         local name=$1
0395         local expected_state=$2
0396         local expected_error=$3
0397         local expected_recover=$4
0398         local expected_grace_period=$5
0399         local expected_auto_recover=$6
0400 
0401         local show=$(devlink health show $DL_HANDLE reporter $name -j | jq -e -r ".[][][]")
0402         check_err $? "Failed show $name reporter"
0403 
0404         local state=$(echo $show | jq -r ".state")
0405         [ "$state" == "$expected_state" ]
0406         check_err $? "Unexpected \"state\" value (got $state, expected $expected_state)"
0407 
0408         local error=$(echo $show | jq -r ".error")
0409         [ "$error" == "$expected_error" ]
0410         check_err $? "Unexpected \"error\" value (got $error, expected $expected_error)"
0411 
0412         local recover=`echo $show | jq -r ".recover"`
0413         [ "$recover" == "$expected_recover" ]
0414         check_err $? "Unexpected \"recover\" value (got $recover, expected $expected_recover)"
0415 
0416         local grace_period=$(echo $show | jq -r ".grace_period")
0417         check_err $? "Failed get $name reporter grace_period"
0418         [ "$grace_period" == "$expected_grace_period" ]
0419         check_err $? "Unexpected \"grace_period\" value (got $grace_period, expected $expected_grace_period)"
0420 
0421         local auto_recover=$(echo $show | jq -r ".auto_recover")
0422         [ "$auto_recover" == "$expected_auto_recover" ]
0423         check_err $? "Unexpected \"auto_recover\" value (got $auto_recover, expected $expected_auto_recover)"
0424 }
0425 
0426 dummy_reporter_test()
0427 {
0428         RET=0
0429 
0430         check_reporter_info dummy healthy 0 0 0 true
0431 
0432         devlink health set $DL_HANDLE reporter dummy auto_recover false
0433         check_err $? "Failed to dummy reporter auto_recover option"
0434 
0435         check_reporter_info dummy healthy 0 0 0 false
0436 
0437         local BREAK_MSG="foo bar"
0438         echo "$BREAK_MSG"> $DEBUGFS_DIR/health/break_health
0439         check_err $? "Failed to break dummy reporter"
0440 
0441         check_reporter_info dummy error 1 0 0 false
0442 
0443         local dump=$(devlink health dump show $DL_HANDLE reporter dummy -j)
0444         check_err $? "Failed show dump of dummy reporter"
0445 
0446         local dump_break_msg=$(echo $dump | jq -r ".break_message")
0447         [ "$dump_break_msg" == "$BREAK_MSG" ]
0448         check_err $? "Unexpected dump break message value (got $dump_break_msg, expected $BREAK_MSG)"
0449 
0450         devlink health dump clear $DL_HANDLE reporter dummy
0451         check_err $? "Failed clear dump of dummy reporter"
0452 
0453         devlink health recover $DL_HANDLE reporter dummy
0454         check_err $? "Failed recover dummy reporter"
0455 
0456         check_reporter_info dummy healthy 1 1 0 false
0457 
0458         devlink health set $DL_HANDLE reporter dummy auto_recover true
0459         check_err $? "Failed to dummy reporter auto_recover option"
0460 
0461         check_reporter_info dummy healthy 1 1 0 true
0462 
0463         echo "$BREAK_MSG"> $DEBUGFS_DIR/health/break_health
0464         check_err $? "Failed to break dummy reporter"
0465 
0466         check_reporter_info dummy healthy 2 2 0 true
0467 
0468         local diagnose=$(devlink health diagnose $DL_HANDLE reporter dummy -j -p)
0469         check_err $? "Failed show diagnose of dummy reporter"
0470 
0471         local rcvrd_break_msg=$(echo $diagnose | jq -r ".recovered_break_message")
0472         [ "$rcvrd_break_msg" == "$BREAK_MSG" ]
0473         check_err $? "Unexpected recovered break message value (got $rcvrd_break_msg, expected $BREAK_MSG)"
0474 
0475         devlink health set $DL_HANDLE reporter dummy grace_period 10
0476         check_err $? "Failed to dummy reporter grace_period option"
0477 
0478         check_reporter_info dummy healthy 2 2 10 true
0479 
0480         echo "Y"> $DEBUGFS_DIR/health/fail_recover
0481         check_err $? "Failed set dummy reporter recovery to fail"
0482 
0483         echo "$BREAK_MSG"> $DEBUGFS_DIR/health/break_health
0484         check_fail $? "Unexpected success of dummy reporter break"
0485 
0486         check_reporter_info dummy error 3 2 10 true
0487 
0488         devlink health recover $DL_HANDLE reporter dummy
0489         check_fail $? "Unexpected success of dummy reporter recover"
0490 
0491         echo "N"> $DEBUGFS_DIR/health/fail_recover
0492         check_err $? "Failed set dummy reporter recovery to be successful"
0493 
0494         devlink health recover $DL_HANDLE reporter dummy
0495         check_err $? "Failed recover dummy reporter"
0496 
0497         check_reporter_info dummy healthy 3 3 10 true
0498 
0499         echo 8192> $DEBUGFS_DIR/health/binary_len
0500         check_fail $? "Failed set dummy reporter binary len to 8192"
0501 
0502         local dump=$(devlink health dump show $DL_HANDLE reporter dummy -j)
0503         check_err $? "Failed show dump of dummy reporter"
0504 
0505         devlink health dump clear $DL_HANDLE reporter dummy
0506         check_err $? "Failed clear dump of dummy reporter"
0507 
0508         log_test "dummy reporter test"
0509 }
0510 
0511 rate_leafs_get()
0512 {
0513         local handle=$1
0514 
0515         cmd_jq "devlink port function rate show -j" \
0516                '.[] | to_entries | .[] | select(.value.type == "leaf") | .key | select(contains("'$handle'"))'
0517 }
0518 
0519 rate_nodes_get()
0520 {
0521         local handle=$1
0522 
0523         cmd_jq "devlink port function rate show -j" \
0524                 '.[] | to_entries | .[] | select(.value.type == "node") | .key | select(contains("'$handle'"))'
0525 }
0526 
0527 rate_attr_set()
0528 {
0529         local handle=$1
0530         local name=$2
0531         local value=$3
0532         local units=$4
0533 
0534         devlink port function rate set $handle $name $value$units
0535 }
0536 
0537 rate_attr_get()
0538 {
0539         local handle=$1
0540         local name=$2
0541 
0542         cmd_jq "devlink port function rate show $handle -j" '.[][].'$name
0543 }
0544 
0545 rate_attr_tx_rate_check()
0546 {
0547         local handle=$1
0548         local name=$2
0549         local rate=$3
0550         local debug_file=$4
0551 
0552         rate_attr_set $handle $name $rate mbit
0553         check_err $? "Failed to set $name value"
0554 
0555         local debug_value=$(cat $debug_file)
0556         check_err $? "Failed to read $name value from debugfs"
0557         [ "$debug_value" == "$rate" ]
0558         check_err $? "Unexpected $name debug value $debug_value != $rate"
0559 
0560         local api_value=$(( $(rate_attr_get $handle $name) * 8 / 1000000 ))
0561         check_err $? "Failed to get $name attr value"
0562         [ "$api_value" == "$rate" ]
0563         check_err $? "Unexpected $name attr value $api_value != $rate"
0564 }
0565 
0566 rate_attr_parent_check()
0567 {
0568         local handle=$1
0569         local parent=$2
0570         local debug_file=$3
0571 
0572         rate_attr_set $handle parent $parent
0573         check_err $? "Failed to set parent"
0574 
0575         debug_value=$(cat $debug_file)
0576         check_err $? "Failed to get parent debugfs value"
0577         [ "$debug_value" == "$parent" ]
0578         check_err $? "Unexpected parent debug value $debug_value != $parent"
0579 
0580         api_value=$(rate_attr_get $r_obj parent)
0581         check_err $? "Failed to get parent attr value"
0582         [ "$api_value" == "$parent" ]
0583         check_err $? "Unexpected parent attr value $api_value != $parent"
0584 }
0585 
0586 rate_node_add()
0587 {
0588         local handle=$1
0589 
0590         devlink port function rate add $handle
0591 }
0592 
0593 rate_node_del()
0594 {
0595         local handle=$1
0596 
0597         devlink port function rate del $handle
0598 }
0599 
0600 rate_test()
0601 {
0602         RET=0
0603 
0604         echo $VF_COUNT > /sys/bus/netdevsim/devices/$DEV_NAME/sriov_numvfs
0605         devlink dev eswitch set $DL_HANDLE mode switchdev
0606         local leafs=`rate_leafs_get $DL_HANDLE`
0607         local num_leafs=`echo $leafs | wc -w`
0608         [ "$num_leafs" == "$VF_COUNT" ]
0609         check_err $? "Expected $VF_COUNT rate leafs but got $num_leafs"
0610 
0611         rate=10
0612         for r_obj in $leafs
0613         do
0614                 rate_attr_tx_rate_check $r_obj tx_share $rate \
0615                         $DEBUGFS_DIR/ports/${r_obj##*/}/tx_share
0616                 rate=$(($rate+10))
0617         done
0618 
0619         rate=100
0620         for r_obj in $leafs
0621         do
0622                 rate_attr_tx_rate_check $r_obj tx_max $rate \
0623                         $DEBUGFS_DIR/ports/${r_obj##*/}/tx_max
0624                 rate=$(($rate+100))
0625         done
0626 
0627         local node1_name='group1'
0628         local node1="$DL_HANDLE/$node1_name"
0629         rate_node_add "$node1"
0630         check_err $? "Failed to add node $node1"
0631 
0632         local num_nodes=`rate_nodes_get $DL_HANDLE | wc -w`
0633         [ $num_nodes == 1 ]
0634         check_err $? "Expected 1 rate node in output but got $num_nodes"
0635 
0636         local node_tx_share=10
0637         rate_attr_tx_rate_check $node1 tx_share $node_tx_share \
0638                 $DEBUGFS_DIR/rate_nodes/${node1##*/}/tx_share
0639 
0640         local node_tx_max=100
0641         rate_attr_tx_rate_check $node1 tx_max $node_tx_max \
0642                 $DEBUGFS_DIR/rate_nodes/${node1##*/}/tx_max
0643 
0644         rate_node_del "$node1"
0645         check_err $? "Failed to delete node $node1"
0646         local num_nodes=`rate_nodes_get $DL_HANDLE | wc -w`
0647         [ $num_nodes == 0 ]
0648         check_err $? "Expected 0 rate node but got $num_nodes"
0649 
0650         local node1_name='group1'
0651         local node1="$DL_HANDLE/$node1_name"
0652         rate_node_add "$node1"
0653         check_err $? "Failed to add node $node1"
0654 
0655         rate_attr_parent_check $r_obj $node1_name \
0656                 $DEBUGFS_DIR/ports/${r_obj##*/}/rate_parent
0657 
0658         local node2_name='group2'
0659         local node2="$DL_HANDLE/$node2_name"
0660         rate_node_add "$node2"
0661         check_err $? "Failed to add node $node2"
0662 
0663         rate_attr_parent_check $node2 $node1_name \
0664                 $DEBUGFS_DIR/rate_nodes/$node2_name/rate_parent
0665         rate_node_del "$node2"
0666         check_err $? "Failed to delete node $node2"
0667         rate_attr_set "$r_obj" noparent
0668         check_err $? "Failed to unset $r_obj parent node"
0669         rate_node_del "$node1"
0670         check_err $? "Failed to delete node $node1"
0671 
0672         log_test "rate test"
0673 }
0674 
0675 setup_prepare()
0676 {
0677         modprobe netdevsim
0678         echo "$BUS_ADDR $PORT_COUNT" > /sys/bus/netdevsim/new_device
0679         while [ ! -d $SYSFS_NET_DIR ] ; do :; done
0680 }
0681 
0682 cleanup()
0683 {
0684         pre_cleanup
0685         echo "$BUS_ADDR" > /sys/bus/netdevsim/del_device
0686         modprobe -r netdevsim
0687 }
0688 
0689 trap cleanup EXIT
0690 
0691 setup_prepare
0692 
0693 tests_run
0694 
0695 exit $EXIT_STATUS
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