1 #!/bin/bash 1 #!/bin/bash
2 # SPDX-License-Identifier: GPL-2.0 2 # SPDX-License-Identifier: GPL-2.0
3 # Copyright(c) 2020 Intel Corporation, Weqaar < 3 # Copyright(c) 2020 Intel Corporation, Weqaar Janjua <weqaar.a.janjua@intel.com>
4 4
5 # AF_XDP selftests based on veth 5 # AF_XDP selftests based on veth
6 # 6 #
7 # End-to-end AF_XDP over Veth test 7 # End-to-end AF_XDP over Veth test
8 # 8 #
9 # Topology: 9 # Topology:
10 # --------- 10 # ---------
11 # ----------- 11 # -----------
12 # _ | Process | _ 12 # _ | Process | _
13 # / ----------- \ 13 # / ----------- \
14 # / | \ 14 # / | \
15 # / | \ 15 # / | \
16 # ----------- | ----------- 16 # ----------- | -----------
17 # | Thread1 | | | Thread2 | 17 # | Thread1 | | | Thread2 |
18 # ----------- | ----------- 18 # ----------- | -----------
19 # | | | 19 # | | |
20 # ----------- | ----------- 20 # ----------- | -----------
21 # | xskX | | | xskY | 21 # | xskX | | | xskY |
22 # ----------- | ----------- 22 # ----------- | -----------
23 # | | | 23 # | | |
24 # ----------- | ---------- 24 # ----------- | ----------
25 # | vethX | --------- | vethY | 25 # | vethX | --------- | vethY |
26 # ----------- peer ---------- 26 # ----------- peer ----------
27 # 27 #
28 # AF_XDP is an address family optimized for hi 28 # AF_XDP is an address family optimized for high performance packet processing,
29 # it is XDP’s user-space interface. 29 # it is XDP’s user-space interface.
30 # 30 #
31 # An AF_XDP socket is linked to a single UMEM 31 # An AF_XDP socket is linked to a single UMEM which is a region of virtual
32 # contiguous memory, divided into equal-sized 32 # contiguous memory, divided into equal-sized frames.
33 # 33 #
34 # Refer to AF_XDP Kernel Documentation for det 34 # Refer to AF_XDP Kernel Documentation for detailed information:
35 # https://www.kernel.org/doc/html/latest/netwo 35 # https://www.kernel.org/doc/html/latest/networking/af_xdp.html
36 # 36 #
37 # Prerequisites setup by script: 37 # Prerequisites setup by script:
38 # 38 #
39 # Set up veth interfaces as per the topology 39 # Set up veth interfaces as per the topology shown ^^:
40 # * setup two veth interfaces 40 # * setup two veth interfaces
41 # ** veth<xxxx> 41 # ** veth<xxxx>
42 # ** veth<yyyy> 42 # ** veth<yyyy>
43 # *** xxxx and yyyy are randomly generated 4 43 # *** xxxx and yyyy are randomly generated 4 digit numbers used to avoid
44 # conflict with any existing interface 44 # conflict with any existing interface
45 # * tests the veth and xsk layers of the top 45 # * tests the veth and xsk layers of the topology
46 # 46 #
47 # See the source xskxceiver.c for information 47 # See the source xskxceiver.c for information on each test
48 # 48 #
49 # Kernel configuration: 49 # Kernel configuration:
50 # --------------------- 50 # ---------------------
51 # See "config" file for recommended kernel con 51 # See "config" file for recommended kernel config options.
52 # 52 #
53 # Turn on XDP sockets and veth support when co 53 # Turn on XDP sockets and veth support when compiling i.e.
54 # Networking support --> 54 # Networking support -->
55 # Networking options --> 55 # Networking options -->
56 # [ * ] XDP sockets 56 # [ * ] XDP sockets
57 # 57 #
58 # Executing Tests: 58 # Executing Tests:
59 # ---------------- 59 # ----------------
60 # Must run with CAP_NET_ADMIN capability. 60 # Must run with CAP_NET_ADMIN capability.
61 # 61 #
62 # Run: 62 # Run:
63 # sudo ./test_xsk.sh 63 # sudo ./test_xsk.sh
64 # 64 #
65 # If running from kselftests: 65 # If running from kselftests:
66 # sudo make run_tests 66 # sudo make run_tests
67 # 67 #
68 # Run with verbose output: 68 # Run with verbose output:
69 # sudo ./test_xsk.sh -v 69 # sudo ./test_xsk.sh -v
70 # 70 #
>> 71 # Run and dump packet contents:
>> 72 # sudo ./test_xsk.sh -D
>> 73 #
71 # Set up veth interfaces and leave them up so 74 # Set up veth interfaces and leave them up so xskxceiver can be launched in a debugger:
72 # sudo ./test_xsk.sh -d 75 # sudo ./test_xsk.sh -d
73 # 76 #
74 # Run test suite for physical device in loopba 77 # Run test suite for physical device in loopback mode
75 # sudo ./test_xsk.sh -i IFACE 78 # sudo ./test_xsk.sh -i IFACE
76 # <<
77 # Run test suite in a specific mode only [skb, <<
78 # sudo ./test_xsk.sh -m MODE <<
79 # <<
80 # List available tests <<
81 # ./test_xsk.sh -l <<
82 # <<
83 # Run a specific test from the test suite <<
84 # sudo ./test_xsk.sh -t TEST_NAME <<
85 # <<
86 # Display the available command line options <<
87 # ./test_xsk.sh -h <<
88 79
89 . xsk_prereqs.sh 80 . xsk_prereqs.sh
90 81
91 ETH="" 82 ETH=""
92 83
93 while getopts "vi:dm:lt:h" flag !! 84 while getopts "vDi:d" flag
94 do 85 do
95 case "${flag}" in 86 case "${flag}" in
96 v) verbose=1;; 87 v) verbose=1;;
>> 88 D) dump_pkts=1;;
97 d) debug=1;; 89 d) debug=1;;
98 i) ETH=${OPTARG};; 90 i) ETH=${OPTARG};;
99 m) MODE=${OPTARG};; <<
100 l) list=1;; <<
101 t) TEST=${OPTARG};; <<
102 h) help=1;; <<
103 esac 91 esac
104 done 92 done
105 93
106 TEST_NAME="PREREQUISITES" 94 TEST_NAME="PREREQUISITES"
107 95
108 URANDOM=/dev/urandom 96 URANDOM=/dev/urandom
109 [ ! -e "${URANDOM}" ] && { echo "${URANDOM} no 97 [ ! -e "${URANDOM}" ] && { echo "${URANDOM} not found. Skipping tests."; test_exit $ksft_fail; }
110 98
111 VETH0_POSTFIX=$(cat ${URANDOM} | tr -dc '0-9' 99 VETH0_POSTFIX=$(cat ${URANDOM} | tr -dc '0-9' | fold -w 256 | head -n 1 | head --bytes 4)
112 VETH0=ve${VETH0_POSTFIX} 100 VETH0=ve${VETH0_POSTFIX}
113 VETH1_POSTFIX=$(cat ${URANDOM} | tr -dc '0-9' 101 VETH1_POSTFIX=$(cat ${URANDOM} | tr -dc '0-9' | fold -w 256 | head -n 1 | head --bytes 4)
114 VETH1=ve${VETH1_POSTFIX} 102 VETH1=ve${VETH1_POSTFIX}
115 MTU=1500 103 MTU=1500
116 104
117 trap ctrl_c INT 105 trap ctrl_c INT
118 106
119 function ctrl_c() { 107 function ctrl_c() {
120 cleanup_exit ${VETH0} ${VETH1} 108 cleanup_exit ${VETH0} ${VETH1}
121 exit 1 109 exit 1
122 } 110 }
123 111
124 setup_vethPairs() { 112 setup_vethPairs() {
125 if [[ $verbose -eq 1 ]]; then 113 if [[ $verbose -eq 1 ]]; then
126 echo "setting up ${VETH0}" 114 echo "setting up ${VETH0}"
127 fi 115 fi
128 ip link add ${VETH0} numtxqueues 4 num 116 ip link add ${VETH0} numtxqueues 4 numrxqueues 4 type veth peer name ${VETH1} numtxqueues 4 numrxqueues 4
129 if [ -f /proc/net/if_inet6 ]; then 117 if [ -f /proc/net/if_inet6 ]; then
130 echo 1 > /proc/sys/net/ipv6/co 118 echo 1 > /proc/sys/net/ipv6/conf/${VETH0}/disable_ipv6
131 echo 1 > /proc/sys/net/ipv6/co 119 echo 1 > /proc/sys/net/ipv6/conf/${VETH1}/disable_ipv6
132 fi 120 fi
133 if [[ $verbose -eq 1 ]]; then 121 if [[ $verbose -eq 1 ]]; then
134 echo "setting up ${VETH1}" 122 echo "setting up ${VETH1}"
135 fi 123 fi
136 124
137 if [[ $busy_poll -eq 1 ]]; then 125 if [[ $busy_poll -eq 1 ]]; then
138 echo 2 > /sys/class/net/${VETH 126 echo 2 > /sys/class/net/${VETH0}/napi_defer_hard_irqs
139 echo 200000 > /sys/class/net/$ 127 echo 200000 > /sys/class/net/${VETH0}/gro_flush_timeout
140 echo 2 > /sys/class/net/${VETH 128 echo 2 > /sys/class/net/${VETH1}/napi_defer_hard_irqs
141 echo 200000 > /sys/class/net/$ 129 echo 200000 > /sys/class/net/${VETH1}/gro_flush_timeout
142 fi 130 fi
143 131
144 ip link set ${VETH1} mtu ${MTU} 132 ip link set ${VETH1} mtu ${MTU}
145 ip link set ${VETH0} mtu ${MTU} 133 ip link set ${VETH0} mtu ${MTU}
146 ip link set ${VETH1} up 134 ip link set ${VETH1} up
147 ip link set ${VETH0} up 135 ip link set ${VETH0} up
148 } 136 }
149 137
150 if [[ $list -eq 1 ]]; then <<
151 ./${XSKOBJ} -l <<
152 exit <<
153 fi <<
154 <<
155 if [[ $help -eq 1 ]]; then <<
156 ./${XSKOBJ} <<
157 exit <<
158 fi <<
159 <<
160 if [ ! -z $ETH ]; then 138 if [ ! -z $ETH ]; then
161 VETH0=${ETH} 139 VETH0=${ETH}
162 VETH1=${ETH} 140 VETH1=${ETH}
163 else 141 else
164 validate_root_exec 142 validate_root_exec
165 validate_veth_support ${VETH0} 143 validate_veth_support ${VETH0}
166 validate_ip_utility 144 validate_ip_utility
167 setup_vethPairs 145 setup_vethPairs
168 146
169 retval=$? 147 retval=$?
170 if [ $retval -ne 0 ]; then 148 if [ $retval -ne 0 ]; then
171 test_status $retval "${TEST_NA 149 test_status $retval "${TEST_NAME}"
172 cleanup_exit ${VETH0} ${VETH1} 150 cleanup_exit ${VETH0} ${VETH1}
173 exit $retval 151 exit $retval
174 fi 152 fi
175 fi 153 fi
176 154
177 155
178 if [[ $verbose -eq 1 ]]; then 156 if [[ $verbose -eq 1 ]]; then
179 ARGS+="-v " 157 ARGS+="-v "
180 fi 158 fi
181 159
182 if [ -n "$MODE" ]; then !! 160 if [[ $dump_pkts -eq 1 ]]; then
183 ARGS+="-m ${MODE} " !! 161 ARGS="-D "
184 fi <<
185 <<
186 if [ -n "$TEST" ]; then <<
187 ARGS+="-t ${TEST} " <<
188 fi 162 fi
189 163
190 retval=$? 164 retval=$?
191 test_status $retval "${TEST_NAME}" 165 test_status $retval "${TEST_NAME}"
192 166
193 ## START TESTS 167 ## START TESTS
194 168
195 statusList=() 169 statusList=()
196 170
197 TEST_NAME="XSK_SELFTESTS_${VETH0}_SOFTIRQ" 171 TEST_NAME="XSK_SELFTESTS_${VETH0}_SOFTIRQ"
198 172
199 if [[ $debug -eq 1 ]]; then 173 if [[ $debug -eq 1 ]]; then
200 echo "-i" ${VETH0} "-i" ${VETH1} 174 echo "-i" ${VETH0} "-i" ${VETH1}
201 exit 175 exit
202 fi 176 fi
203 177
204 exec_xskxceiver 178 exec_xskxceiver
205 179
206 if [ -z $ETH ]; then 180 if [ -z $ETH ]; then
207 cleanup_exit ${VETH0} ${VETH1} 181 cleanup_exit ${VETH0} ${VETH1}
208 else <<
209 cleanup_iface ${ETH} ${MTU} <<
210 fi <<
211 <<
212 if [[ $list -eq 1 ]]; then <<
213 exit <<
214 fi 182 fi
215 <<
216 TEST_NAME="XSK_SELFTESTS_${VETH0}_BUSY_POLL" 183 TEST_NAME="XSK_SELFTESTS_${VETH0}_BUSY_POLL"
217 busy_poll=1 184 busy_poll=1
218 185
219 if [ -z $ETH ]; then 186 if [ -z $ETH ]; then
220 setup_vethPairs 187 setup_vethPairs
221 fi 188 fi
222 exec_xskxceiver 189 exec_xskxceiver
223 190
224 ## END TESTS 191 ## END TESTS
225 192
226 if [ -z $ETH ]; then 193 if [ -z $ETH ]; then
227 cleanup_exit ${VETH0} ${VETH1} 194 cleanup_exit ${VETH0} ${VETH1}
228 else <<
229 cleanup_iface ${ETH} ${MTU} <<
230 fi 195 fi
231 196
232 failures=0 197 failures=0
233 echo -e "\nSummary:" 198 echo -e "\nSummary:"
234 for i in "${!statusList[@]}" 199 for i in "${!statusList[@]}"
235 do 200 do
236 if [ ${statusList[$i]} -ne 0 ]; then 201 if [ ${statusList[$i]} -ne 0 ]; then
237 test_status ${statusList[$i]} 202 test_status ${statusList[$i]} ${nameList[$i]}
238 failures=1 203 failures=1
239 fi 204 fi
240 done 205 done
241 206
242 if [ $failures -eq 0 ]; then 207 if [ $failures -eq 0 ]; then
243 echo "All tests successful!" 208 echo "All tests successful!"
244 fi 209 fi
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