From patchwork Wed Oct 30 14:27:11 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanislav Fomichev X-Patchwork-Id: 13856599 Received: from mail-pf1-f178.google.com (mail-pf1-f178.google.com [209.85.210.178]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 96C5D1F131B; Wed, 30 Oct 2024 14:27:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.178 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730298448; cv=none; b=XK22m2UHzpp3dBG+ZJ0I90T4EATHK7DG/ZqGFmWBl991RNQK2bPH+pvm0IVkzxzly1bxPIL2StaXcR8hWtRxkA2Pn/j9Jjp3iN9ExvbIVf+T8TAMpb++sOUMWrFEANuGAWVCJjSeX64tJioVCCcBbzug0d5bX/p1FrJLZ0ft0+4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730298448; c=relaxed/simple; bh=DbSfoMlzpZVhU+8FFsUY3AHTX/zbUMYdVXfjpyEzHfU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=UXA6//GBnKpXGb/365rxAIGHX5HULWIoAEOgUzaGOio6prL/nZ9OTd+p64t3N0MBs1r3v1kTVpYLVs5/OAp0IHpYfLttpIXHYUmEJwmZwYrIw1/8pZ38XP6dI+kR5RQH1q5EG6Qnlx0v3AOG8igDji9deDoBvx2nl2FrDkSqXtE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=fomichev.me; spf=pass smtp.mailfrom=gmail.com; arc=none smtp.client-ip=209.85.210.178 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=fomichev.me Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Received: by mail-pf1-f178.google.com with SMTP id d2e1a72fcca58-71e4c2e36daso698242b3a.0; Wed, 30 Oct 2024 07:27:26 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1730298445; x=1730903245; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=fYIgIfdOM+KXAHby1i+hfUVdj9h7/069nIsE/U1uz/s=; b=Om2sagzOHp9WBoevq12Ew8sjQoqoRBjB9Q5U637geAfK8rXgpKugYdRSf7hg5hktLZ 7xHzRImewq50f+ZHTsyJqcs7w6PcmJuMYffE4CYvMkz/pk3mW0Bmzb4cCXKhWBxzkQE+ JuftrXNtyix4AI7OVfL1pRi5QpooWhY201ENi21nO6V6WwM1BmT1wiQu8MyRhA8em9jy xfg+TKQOXy5bcRQH4QfFwFugvJQXcmmDKmmOzLJS2jPnzDTX9bqJf2MPZ66l2VcIOUJd zU8FBvJ82x93F9GKWJO9GWJXzrsZ+itugIJN7fsBRd6ZBW6RMMO9bAKWBfvslcsFM2Qr MYAw== X-Forwarded-Encrypted: i=1; AJvYcCVeS2JGsmz4dNHG5EDlTnZqIcrxgXP4FyaE2SvzNo6+0G6xqb6Lo1kuLvKaidaPyJY4JZughStnGWu64KI=@vger.kernel.org, AJvYcCWPm8cJMu/dAaB24Yt8an66Ii7O7oYDjbd+iqj8MfaOVqJgNR6VU6dW8pAo7kVeX2KvTw3SAEVOQ3dM6dOyndIp@vger.kernel.org X-Gm-Message-State: AOJu0YwD2BhVHnvbmAwmOfH3Ij0cY182sTx6UMP0ll+0qnTmK9SmvwzY GPEgZqeWtEmXUd1/YWb4QUAh9K/Ihj2vuKMJLy2TIw/KDWmar+9fybAg9to= X-Google-Smtp-Source: AGHT+IHcYyMNajAcXQtfx/pUj0w6uio/6atCMOpg1MpwRBQ8XcxjbYioDvvhHFlOdlm557Klqq7YcA== X-Received: by 2002:a05:6a00:10d2:b0:71e:5573:8dcd with SMTP id d2e1a72fcca58-72096b9a529mr9261354b3a.2.1730298445186; Wed, 30 Oct 2024 07:27:25 -0700 (PDT) Received: from localhost ([2601:646:9e00:f56e:123b:cea3:439a:b3e3]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-7edc8685729sm9352812a12.37.2024.10.30.07.27.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 30 Oct 2024 07:27:24 -0700 (PDT) From: Stanislav Fomichev To: netdev@vger.kernel.org Cc: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, andrew+netdev@lunn.ch, shuah@kernel.org, horms@kernel.org, sdf@fomichev.me, almasrymina@google.com, willemb@google.com, petrm@nvidia.com Subject: [PATCH net-next v6 01/12] selftests: ncdevmem: Redirect all non-payload output to stderr Date: Wed, 30 Oct 2024 07:27:11 -0700 Message-ID: <20241030142722.2901744-2-sdf@fomichev.me> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241030142722.2901744-1-sdf@fomichev.me> References: <20241030142722.2901744-1-sdf@fomichev.me> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 That should make it possible to do expected payload validation on the caller side. Reviewed-by: Mina Almasry Signed-off-by: Stanislav Fomichev --- tools/testing/selftests/net/ncdevmem.c | 61 +++++++++++++------------- 1 file changed, 30 insertions(+), 31 deletions(-) diff --git a/tools/testing/selftests/net/ncdevmem.c b/tools/testing/selftests/net/ncdevmem.c index 64d6805381c5..9245d3f158dd 100644 --- a/tools/testing/selftests/net/ncdevmem.c +++ b/tools/testing/selftests/net/ncdevmem.c @@ -88,7 +88,6 @@ void print_nonzero_bytes(void *ptr, size_t size) for (i = 0; i < size; i++) putchar(p[i]); - printf("\n"); } void validate_buffer(void *line, size_t size) @@ -120,7 +119,7 @@ void validate_buffer(void *line, size_t size) char command[256]; \ memset(command, 0, sizeof(command)); \ snprintf(command, sizeof(command), cmd, ##__VA_ARGS__); \ - printf("Running: %s\n", command); \ + fprintf(stderr, "Running: %s\n", command); \ system(command); \ }) @@ -128,22 +127,22 @@ static int reset_flow_steering(void) { int ret = 0; - ret = run_command("sudo ethtool -K %s ntuple off", ifname); + ret = run_command("sudo ethtool -K %s ntuple off >&2", ifname); if (ret) return ret; - return run_command("sudo ethtool -K %s ntuple on", ifname); + return run_command("sudo ethtool -K %s ntuple on >&2", ifname); } static int configure_headersplit(bool on) { - return run_command("sudo ethtool -G %s tcp-data-split %s", ifname, + return run_command("sudo ethtool -G %s tcp-data-split %s >&2", ifname, on ? "on" : "off"); } static int configure_rss(void) { - return run_command("sudo ethtool -X %s equal %d", ifname, start_queue); + return run_command("sudo ethtool -X %s equal %d >&2", ifname, start_queue); } static int configure_channels(unsigned int rx, unsigned int tx) @@ -153,7 +152,7 @@ static int configure_channels(unsigned int rx, unsigned int tx) static int configure_flow_steering(void) { - return run_command("sudo ethtool -N %s flow-type tcp4 src-ip %s dst-ip %s src-port %s dst-port %s queue %d", + return run_command("sudo ethtool -N %s flow-type tcp4 src-ip %s dst-ip %s src-port %s dst-port %s queue %d >&2", ifname, client_ip, server_ip, port, port, start_queue); } @@ -187,7 +186,7 @@ static int bind_rx_queue(unsigned int ifindex, unsigned int dmabuf_fd, goto err_close; } - printf("got dmabuf id=%d\n", rsp->id); + fprintf(stderr, "got dmabuf id=%d\n", rsp->id); dmabuf_id = rsp->id; netdev_bind_rx_req_free(req); @@ -314,8 +313,8 @@ int do_server(void) if (ret) error(errno, errno, "%s: [FAIL, set sock opt]\n", TEST_PREFIX); - printf("binding to address %s:%d\n", server_ip, - ntohs(server_sin.sin_port)); + fprintf(stderr, "binding to address %s:%d\n", server_ip, + ntohs(server_sin.sin_port)); ret = bind(socket_fd, &server_sin, sizeof(server_sin)); if (ret) @@ -329,14 +328,14 @@ int do_server(void) inet_ntop(server_sin.sin_family, &server_sin.sin_addr, buffer, sizeof(buffer)); - printf("Waiting or connection on %s:%d\n", buffer, - ntohs(server_sin.sin_port)); + fprintf(stderr, "Waiting or connection on %s:%d\n", buffer, + ntohs(server_sin.sin_port)); client_fd = accept(socket_fd, &client_addr, &client_addr_len); inet_ntop(client_addr.sin_family, &client_addr.sin_addr, buffer, sizeof(buffer)); - printf("Got connection from %s:%d\n", buffer, - ntohs(client_addr.sin_port)); + fprintf(stderr, "Got connection from %s:%d\n", buffer, + ntohs(client_addr.sin_port)); while (1) { struct iovec iov = { .iov_base = iobuf, @@ -349,14 +348,13 @@ int do_server(void) ssize_t ret; is_devmem = false; - printf("\n\n"); msg.msg_iov = &iov; msg.msg_iovlen = 1; msg.msg_control = ctrl_data; msg.msg_controllen = sizeof(ctrl_data); ret = recvmsg(client_fd, &msg, MSG_SOCK_DEVMEM); - printf("recvmsg ret=%ld\n", ret); + fprintf(stderr, "recvmsg ret=%ld\n", ret); if (ret < 0 && (errno == EAGAIN || errno == EWOULDBLOCK)) continue; if (ret < 0) { @@ -364,7 +362,7 @@ int do_server(void) continue; } if (ret == 0) { - printf("client exited\n"); + fprintf(stderr, "client exited\n"); goto cleanup; } @@ -373,7 +371,7 @@ int do_server(void) if (cm->cmsg_level != SOL_SOCKET || (cm->cmsg_type != SCM_DEVMEM_DMABUF && cm->cmsg_type != SCM_DEVMEM_LINEAR)) { - fprintf(stdout, "skipping non-devmem cmsg\n"); + fprintf(stderr, "skipping non-devmem cmsg\n"); continue; } @@ -384,7 +382,7 @@ int do_server(void) /* TODO: process data copied from skb's linear * buffer. */ - fprintf(stdout, + fprintf(stderr, "SCM_DEVMEM_LINEAR. dmabuf_cmsg->frag_size=%u\n", dmabuf_cmsg->frag_size); @@ -395,12 +393,13 @@ int do_server(void) token.token_count = 1; total_received += dmabuf_cmsg->frag_size; - printf("received frag_page=%llu, in_page_offset=%llu, frag_offset=%llu, frag_size=%u, token=%u, total_received=%lu, dmabuf_id=%u\n", - dmabuf_cmsg->frag_offset >> PAGE_SHIFT, - dmabuf_cmsg->frag_offset % getpagesize(), - dmabuf_cmsg->frag_offset, dmabuf_cmsg->frag_size, - dmabuf_cmsg->frag_token, total_received, - dmabuf_cmsg->dmabuf_id); + fprintf(stderr, + "received frag_page=%llu, in_page_offset=%llu, frag_offset=%llu, frag_size=%u, token=%u, total_received=%lu, dmabuf_id=%u\n", + dmabuf_cmsg->frag_offset >> PAGE_SHIFT, + dmabuf_cmsg->frag_offset % getpagesize(), + dmabuf_cmsg->frag_offset, + dmabuf_cmsg->frag_size, dmabuf_cmsg->frag_token, + total_received, dmabuf_cmsg->dmabuf_id); if (dmabuf_cmsg->dmabuf_id != dmabuf_id) error(1, 0, @@ -438,15 +437,15 @@ int do_server(void) if (!is_devmem) error(1, 0, "flow steering error\n"); - printf("total_received=%lu\n", total_received); + fprintf(stderr, "total_received=%lu\n", total_received); } - fprintf(stdout, "%s: ok\n", TEST_PREFIX); + fprintf(stderr, "%s: ok\n", TEST_PREFIX); - fprintf(stdout, "page_aligned_frags=%lu, non_page_aligned_frags=%lu\n", + fprintf(stderr, "page_aligned_frags=%lu, non_page_aligned_frags=%lu\n", page_aligned_frags, non_page_aligned_frags); - fprintf(stdout, "page_aligned_frags=%lu, non_page_aligned_frags=%lu\n", + fprintf(stderr, "page_aligned_frags=%lu, non_page_aligned_frags=%lu\n", page_aligned_frags, non_page_aligned_frags); cleanup: @@ -551,7 +550,7 @@ int main(int argc, char *argv[]) ifname = optarg; break; case '?': - printf("unknown option: %c\n", optopt); + fprintf(stderr, "unknown option: %c\n", optopt); break; } } @@ -559,7 +558,7 @@ int main(int argc, char *argv[]) ifindex = if_nametoindex(ifname); for (; optind < argc; optind++) - printf("extra arguments: %s\n", argv[optind]); + fprintf(stderr, "extra arguments: %s\n", argv[optind]); run_devmem_tests();