diff options
Diffstat (limited to 'tools/testing/selftests/net/packetdrill/tcp_eor_no-coalesce-subsequent.pkt')
| -rw-r--r-- | tools/testing/selftests/net/packetdrill/tcp_eor_no-coalesce-subsequent.pkt | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/packetdrill/tcp_eor_no-coalesce-subsequent.pkt b/tools/testing/selftests/net/packetdrill/tcp_eor_no-coalesce-subsequent.pkt new file mode 100644 index 000000000000..dd5a06250595 --- /dev/null +++ b/tools/testing/selftests/net/packetdrill/tcp_eor_no-coalesce-subsequent.pkt @@ -0,0 +1,66 @@ +// SPDX-License-Identifier: GPL-2.0 +// Test TCP does not append any data from consequent writes to the tail +// skb created for the chunk even though we have 10 back-to-back small +// writes. +`./defaults.sh +` + +// Initialize connection + 0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3 + +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0 + +0 bind(3, ..., ...) = 0 + +0 listen(3, 1) = 0 + + +0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 10> + +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8> + +.01 < . 1:1(0) ack 1 win 514 + + +0 accept(3, ..., ...) = 4 + +// Write a 10400B chunk to fill the ICW, and have a 400 byte skb sitting on +// the tail. + +0 write(4, ..., 10400) = 10400 + +// Write 10 400B chunks with no coalescing options. + +0 send(4, ..., 400, MSG_EOR) = 400 + +0 send(4, ..., 400, MSG_EOR) = 400 + +0 send(4, ..., 400, MSG_EOR) = 400 + +0 send(4, ..., 400, MSG_EOR) = 400 + +0 send(4, ..., 400, MSG_EOR) = 400 + +0 send(4, ..., 400, MSG_EOR) = 400 + +0 send(4, ..., 400, MSG_EOR) = 400 + +0 send(4, ..., 400, MSG_EOR) = 400 + +0 send(4, ..., 400, MSG_EOR) = 400 + +0 send(4, ..., 400, MSG_EOR) = 400 +// This chunk should not be appended to the skbs created for the previous chunk. + +0 write(4, ..., 10000) = 10000 + + +0 > P. 1:10001(10000) ack 1 ++.001 < . 1:1(0) ack 10001 win 514 +// Now we have enough room to send out the 2 x 400B packets out. + +0 > P. 10001:10801(800) ack 1 +// The 9 remaining 400B chunks should be sent as individual packets. + +0 > P. 10801:11201(400) ack 1 + +0 > P. 11201:11601(400) ack 1 + +0 > P. 11601:12001(400) ack 1 + +0 > P. 12001:12401(400) ack 1 + +0 > P. 12401:12801(400) ack 1 + +0 > P. 12801:13201(400) ack 1 + +0 > P. 13201:13601(400) ack 1 + +0 > P. 13601:14001(400) ack 1 + +0 > P. 14001:14401(400) ack 1 +// The last 10KB chunk should be sent separately. + +0 > P. 14401:24401(10000) ack 1 + ++.001 < . 1:1(0) ack 10401 win 514 ++.001 < . 1:1(0) ack 10801 win 514 ++.001 < . 1:1(0) ack 11201 win 514 ++.001 < . 1:1(0) ack 11601 win 514 ++.001 < . 1:1(0) ack 12001 win 514 ++.001 < . 1:1(0) ack 12401 win 514 ++.001 < . 1:1(0) ack 12801 win 514 ++.001 < . 1:1(0) ack 13201 win 514 ++.001 < . 1:1(0) ack 13601 win 514 ++.001 < . 1:1(0) ack 14001 win 514 ++.001 < . 1:1(0) ack 14401 win 514 ++.001 < . 1:1(0) ack 24401 win 514 |