From patchwork Wed Dec 5 18:52:32 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiong Wang X-Patchwork-Id: 1008382 X-Patchwork-Delegate: bpf@iogearbox.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=netronome.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=netronome-com.20150623.gappssmtp.com header.i=@netronome-com.20150623.gappssmtp.com header.b="fFE3mFTq"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 4397D354d0z9s8J for ; Thu, 6 Dec 2018 05:53:23 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728204AbeLESxW (ORCPT ); Wed, 5 Dec 2018 13:53:22 -0500 Received: from mail-wm1-f66.google.com ([209.85.128.66]:36923 "EHLO mail-wm1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727388AbeLESxU (ORCPT ); Wed, 5 Dec 2018 13:53:20 -0500 Received: by mail-wm1-f66.google.com with SMTP id g67so13963630wmd.2 for ; Wed, 05 Dec 2018 10:53:19 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=netronome-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=8lw5c9AS5E0vrdYtWdtNTPMLQokU4JsziVw70MjB9wE=; b=fFE3mFTqRUW5s8/JiXmfwJCDearLCV9rfgz/qQWW/LZvO+Nlmti9dDwWAUpyhIMl2l bcEp8CHROSe7Giy5tfGJmTCq9rxud6RBvw6HkcxVxnENtcW6bz7XEyleHQeGSeIVFlmb Uewact4hTsmrY+IjTb+4MhnRxb4hZvdSvjvoiTF1jnWRytzo/xiaams/Z0Ptftfl5MG8 B0O1wTL11QUQyLCbZI7kVdcCtbmSxQcU+JrBgydcnNKtalaCnspsNyqCksLVweibmPKp s+D9IuKYVKsTyHwvN8meGpKvlEdFhkzJQvBYmS9x0/gWnYllqjyKNAP4qqii7IJfKU5r 4ELg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=8lw5c9AS5E0vrdYtWdtNTPMLQokU4JsziVw70MjB9wE=; b=EUgHdy16dlgdFWrDpToD4iPytvmdLck79N5d0B3g59dRRyjGtf8vqU3qgCyiQqiP/A MdPgfPd4zo52SuLg5WZirDi0XxHV0UAqQj2ZaETj6pYkn+HVkGTC9TCwRDRBffNycl8w gpXWBtJnsNJ63Lmoilmc3m6OJ/qp+EuU+ekmRT7xECepgbLmc6IsE1rMHi+A4DL1Egtv L+Wtgzsc/ag/6mt0vCmg9O1iUh4AlxJZo0iWv7y78nSOM6iuAqrGDFdTLWzoR+0ZOVou EoMv5x12LXZX3QyNJr3VYggCzJ3DzrRMJEF27FwCQYet99eXp12r8Jbo4x9sIWjwCQQ9 27qw== X-Gm-Message-State: AA+aEWYh3SQ2tvXKEEgpxG9ldVtPCrnTxHeFFdEkrbfVbBgc1OWcXAK8 5pZNP5FFNgWVvgLwXDiH3D+/CQ== X-Google-Smtp-Source: AFSGD/XKd4rmOWMyYoEl/mgPoNfUuijgHrmDXonVVKoK+n5B0NCHX/SQAWawX7E/dclcfMnLQwhmvg== X-Received: by 2002:a1c:aad2:: with SMTP id t201mr10696759wme.148.1544035998864; Wed, 05 Dec 2018 10:53:18 -0800 (PST) Received: from cbtest28.netronome.com ([217.38.71.146]) by smtp.gmail.com with ESMTPSA id s81sm15803251wmf.14.2018.12.05.10.53.17 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 05 Dec 2018 10:53:18 -0800 (PST) From: Jiong Wang To: daniel@iogearbox.net, ast@kernel.org Cc: netdev@vger.kernel.org, oss-drivers@netronome.com, Jiong Wang , Martin Schwidefsky , Heiko Carstens Subject: [PATCH v2 bpf-next 3/7] s390: bpf: implement jitting of BPF_ALU | BPF_ARSH | BPF_* Date: Wed, 5 Dec 2018 13:52:32 -0500 Message-Id: <1544035956-12375-4-git-send-email-jiong.wang@netronome.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1544035956-12375-1-git-send-email-jiong.wang@netronome.com> References: <1544035956-12375-1-git-send-email-jiong.wang@netronome.com> Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org This patch implements code-gen for BPF_ALU | BPF_ARSH | BPF_*. Cc: Martin Schwidefsky Cc: Heiko Carstens Signed-off-by: Jiong Wang --- arch/s390/net/bpf_jit_comp.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/s390/net/bpf_jit_comp.c b/arch/s390/net/bpf_jit_comp.c index d7052cb..3ff758e 100644 --- a/arch/s390/net/bpf_jit_comp.c +++ b/arch/s390/net/bpf_jit_comp.c @@ -821,10 +821,22 @@ static noinline int bpf_jit_insn(struct bpf_jit *jit, struct bpf_prog *fp, int i /* * BPF_ARSH */ + case BPF_ALU | BPF_ARSH | BPF_X: /* ((s32) dst) >>= src */ + /* sra %dst,%dst,0(%src) */ + EMIT4_DISP(0x8a000000, dst_reg, src_reg, 0); + EMIT_ZERO(dst_reg); + break; case BPF_ALU64 | BPF_ARSH | BPF_X: /* ((s64) dst) >>= src */ /* srag %dst,%dst,0(%src) */ EMIT6_DISP_LH(0xeb000000, 0x000a, dst_reg, dst_reg, src_reg, 0); break; + case BPF_ALU | BPF_ARSH | BPF_K: /* ((s32) dst >> imm */ + if (imm == 0) + break; + /* sra %dst,imm(%r0) */ + EMIT4_DISP(0x8a000000, dst_reg, REG_0, imm); + EMIT_ZERO(dst_reg); + break; case BPF_ALU64 | BPF_ARSH | BPF_K: /* ((s64) dst) >>= imm */ if (imm == 0) break;