[bpf-next,v2,11/16] selftests: xsk: decrease batch size

Message ID	20210817092729.433-12-magnus.karlsson@gmail.com
State	New
Headers	show Return-Path: <netdev-owner@kernel.org> From: Magnus Karlsson <magnus.karlsson@gmail.com> To: magnus.karlsson@intel.com, bjorn@kernel.org, ast@kernel.org, daniel@iogearbox.net, netdev@vger.kernel.org, maciej.fijalkowski@intel.com Cc: jonathan.lemon@gmail.com, ciara.loftus@intel.com, bpf@vger.kernel.org, yhs@fb.com, andrii@kernel.org Subject: [PATCH bpf-next v2 11/16] selftests: xsk: decrease batch size Date: Tue, 17 Aug 2021 11:27:24 +0200 Message-Id: <20210817092729.433-12-magnus.karlsson@gmail.com> In-Reply-To: <20210817092729.433-1-magnus.karlsson@gmail.com> References: <20210817092729.433-1-magnus.karlsson@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk
Series	selftests: xsk: various simplifications \| expand [bpf-next,v2,00/16] selftests: xsk: various simplifications [bpf-next,v2,01/16] selftests: xsk: remove color mode [bpf-next,v2,02/16] selftests: xsk: remove the num_tx_packets option [bpf-next,v2,03/16] selftests: xsk: remove unused variables [bpf-next,v2,04/16] selftests: xsk: return correct error codes [bpf-next,v2,05/16] selftests: xsk: simplify the retry code [bpf-next,v2,06/16] selftests: xsk: remove end-of-test packet [bpf-next,v2,07/16] selftests: xsk: disassociate umem size with packets sent [bpf-next,v2,08/16] selftests: xsk: rename worker_* functions that are not thread entry points [bpf-next,v2,09/16] selftests: xsk: simplify packet validation in xsk tests [bpf-next,v2,10/16] selftests: xsk: validate tx stats on tx thread [bpf-next,v2,11/16] selftests: xsk: decrease batch size [bpf-next,v2,12/16] selftests: xsk: remove cleanup at end of program [bpf-next,v2,13/16] selftests: xsk: generate packet directly in umem [bpf-next,v2,14/16] selftests: xsk: generate packets from specification [bpf-next,v2,15/16] selftests: xsk: make enums lower case [bpf-next,v2,16/16] selftests: xsk: preface options with opt

Message ID

20210817092729.433-12-magnus.karlsson@gmail.com

State

New

Headers

From: Magnus Karlsson <magnus.karlsson@gmail.com>
To: magnus.karlsson@intel.com, bjorn@kernel.org, ast@kernel.org,
	daniel@iogearbox.net, netdev@vger.kernel.org,
	maciej.fijalkowski@intel.com
Cc: jonathan.lemon@gmail.com, ciara.loftus@intel.com,
	bpf@vger.kernel.org, yhs@fb.com, andrii@kernel.org
Subject: [PATCH bpf-next v2 11/16] selftests: xsk: decrease batch size
Date: Tue, 17 Aug 2021 11:27:24 +0200
Message-Id: <20210817092729.433-12-magnus.karlsson@gmail.com>
In-Reply-To: <20210817092729.433-1-magnus.karlsson@gmail.com>
References: <20210817092729.433-1-magnus.karlsson@gmail.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

Series

selftests: xsk: various simplifications | expand

Commit Message

Magnus Karlsson Aug. 17, 2021, 9:27 a.m. UTC

From: Magnus Karlsson <magnus.karlsson@intel.com>

Decrease the batch size from 64 to 8 to avoid potentially overflowing
some buffers in the skb case that leads to dropped packets we cannot
control (and thus the tests may generate false negatives).

Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
---
 tools/testing/selftests/bpf/xdpxceiver.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/bpf/xdpxceiver.h b/tools/testing/selftests/bpf/xdpxceiver.h
index 0fb657b505ae..1c5457e9f1d6 100644
--- a/tools/testing/selftests/bpf/xdpxceiver.h
+++ b/tools/testing/selftests/bpf/xdpxceiver.h
@@ -36,7 +36,7 @@ 
 #define UDP_PKT_DATA_SIZE (UDP_PKT_SIZE - sizeof(struct udphdr))
 #define USLEEP_MAX 10000
 #define SOCK_RECONF_CTR 10
-#define BATCH_SIZE 64
+#define BATCH_SIZE 8
 #define POLL_TMOUT 1000
 #define DEFAULT_PKT_CNT (4 * 1024)
 #define RX_FULL_RXQSIZE 32

[bpf-next,v2,11/16] selftests: xsk: decrease batch size

Commit Message

Patch