From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0D1AC3A1CD; Fri, 11 Jul 2025 13:39:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752241160; cv=none; b=XXwbXDtfV4ZUQuYKz87ToMQEHn/j2qPf32HSF92GHGSk+VxSmc1sxyTbO0PfNkYaHFUe/IkrRmBM8+UWNg6wC4EZEmYFyWlFEnYgyN/KonB4AxfRcu8LSH17M+fFABzLkFjbGHbRW4NqoroAk5G7Gw/ftDjbCdZAI6B40sf2wEU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752241160; c=relaxed/simple; bh=eFgED19dQRcbU4DIqiWV1GygAUnicd546BK4INZAAss=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=Q0pcEQDrnH8uF69nrSK635L3jPZA6wjUX6vz5TSnMSB+KF2pyIZLnniLNEXAjZ6q1N+cAfKDfCaecZy2gS3bMA8fEuaNQ3KyCJcdkyXTLnU4M1pMOC2RdXexH5Wo83DBbB++cKr0DyAZfJ2RVYemmca/HHNqjVmddPsjqv8ItgU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=dFqogJIN; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="dFqogJIN" Received: by smtp.kernel.org (Postfix) with ESMTPSA id ECC08C4CEED; Fri, 11 Jul 2025 13:39:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1752241159; bh=eFgED19dQRcbU4DIqiWV1GygAUnicd546BK4INZAAss=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=dFqogJINkHleezubFaTYRjl9rOp7Qu3v6UH1d2kfuLU5Att7mBp+vYht8FbPQ2OLj 7MhhtQkPYEZxklTihibLlMUGol5w/Xp99J4gsFDg9gRDfNTXKNmFb1CkawU+l0Ew/5 /A1yj3bLqkYUEgvw8IbL7LwWDPQqLaTU3V1+bbqaB/c56AEgU4h6Yd1hVgeGC2DGWC SPKFNohRdYyeFos9QOEHPd6O7Q+9RRSBSlNmkJBKYRE7vKv/KR85ywFxMI7st/L3MR ODx7cS5YtdOXPKjxmvkCcF6W4TkJnDTWGLDm5UfRwhddzARKVf4GjgS/B+uUmDVc+4 Zkfu7ZLi/2d7w== Date: Fri, 11 Jul 2025 06:39:17 -0700 From: Jakub Kicinski To: Mohsin Bashir Cc: netdev@vger.kernel.org, andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, pabeni@redhat.com, shuah@kernel.org, horms@kernel.org, cratiu@nvidia.com, noren@nvidia.com, cjubran@nvidia.com, mbloch@nvidia.com, jdamato@fastly.com, gal@nvidia.com, sdf@fomichev.me, ast@kernel.org, daniel@iogearbox.net, hawk@kernel.org, john.fastabend@gmail.com, bpf@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: Re: [PATCH net-next V2 0/5] selftests: drv-net: Test XDP native support Message-ID: <20250711063917.7aad27f7@kernel.org> In-Reply-To: <20250710184351.63797-1-mohsin.bashr@gmail.com> References: <20250710184351.63797-1-mohsin.bashr@gmail.com> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Thu, 10 Jul 2025 11:43:46 -0700 Mohsin Bashir wrote: > This patch series add tests to validate XDP native support for PASS, > DROP, ABORT, and TX actions, as well as headroom and tailroom adjustment. > For adjustment tests, validate support for both the extension and > shrinking cases across various packet sizes and offset values. The program does not load in the CI :( 509: (15) if r1 == 0x0 goto pc+142 ; frame1: R1=scalar(smin=umin=umin32=1,smax=umax=0xffffffff,var_off=(0x0; 0xffffffff)) 510: (25) if r1 > 0x100 goto pc+141 ; frame1: R1=scalar(smin=umin=smin32=umin32=1,smax=umax=smax32=umax32=256,var_off=(0x0; 0x1ff)) 511: (bf) r3 = r10 ; frame1: R3_w=fp0 R10=fp0\n; if (bpf_xdp_load_bytes(ctx, 0, tmp_buff, hdr_len) < 0) @ xdp_native.bpf.c:377 512: (07) r3 += -256 ; frame1: R3_w=fp-256 513: (bf) r1 = r7 ; frame1: R1_w=ctx() R7=ctx() 514: (b7) r2 = 0 ; frame1: R2_w=0 515: (bf) r4 = r8 ; frame1: R4_w=scalar(id=3) R8=scalar(id=3) 516: (7b) *(u64 *)(r10 -280) = r5 ; frame1: R5=32 R10=fp0 fp-280_w=32 517: (85) call bpf_xdp_load_bytes#189 R4 min value is negative, either use unsigned or 'var &= const' processed 262 insns (limit 1000000) max_states_per_insn 1 total_states 26 peak_states 26 mark_read 7 -- END PROG LOAD LOG I suppose it may be due to compiler version: $ clang --version clang version 15.0.7 (AWS 15.0.7-3.amzn2023.0.4) LMK if you need more info / can't repro, but I think the suggestion makes sense?