From patchwork Sat Nov 18 10:40:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhang Xiaoxu X-Patchwork-Id: 745616 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 51BE5C2BB3F for ; Sat, 18 Nov 2023 10:41:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232819AbjKRKlp (ORCPT ); Sat, 18 Nov 2023 05:41:45 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58026 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231940AbjKRKlm (ORCPT ); Sat, 18 Nov 2023 05:41:42 -0500 Received: from dggsgout11.his.huawei.com (dggsgout11.his.huawei.com [45.249.212.51]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4B9EA10C1; Sat, 18 Nov 2023 02:41:37 -0800 (PST) Received: from mail.maildlp.com (unknown [172.19.163.216]) by dggsgout11.his.huawei.com (SkyGuard) with ESMTP id 4SXVgZ2z5Wz4f3lfQ; Sat, 18 Nov 2023 18:41:30 +0800 (CST) Received: from mail02.huawei.com (unknown [10.116.40.112]) by mail.maildlp.com (Postfix) with ESMTP id 8846F1A016F; Sat, 18 Nov 2023 18:41:34 +0800 (CST) Received: from huaweicloud.com (unknown [10.175.101.107]) by APP1 (Coremail) with SMTP id cCh0CgDn6hDQlFhlQPAFBQ--.58135S6; Sat, 18 Nov 2023 18:41:34 +0800 (CST) From: Zhang Xiaoxu To: zhangxiaoxu5@huawei.com, weiyongjun1@huawei.com, linux-kernel@vger.kernel.org, broonie@kernel.org, rostedt@goodmis.org, mingo@redhat.com, frowand.list@gmail.com, linux-spi@vger.kernel.org Subject: [PATCH -next 02/14] kddv/core: Allow test case config bpf program Date: Sat, 18 Nov 2023 18:40:28 +0800 Message-Id: <20231118104040.386381-3-zhangxiaoxu@huaweicloud.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231118104040.386381-1-zhangxiaoxu@huaweicloud.com> References: <20231118104040.386381-1-zhangxiaoxu@huaweicloud.com> MIME-Version: 1.0 X-CM-TRANSID: cCh0CgDn6hDQlFhlQPAFBQ--.58135S6 X-Coremail-Antispam: 1UD129KBjvJXoWxtF1kAryrZryxCF18ur13XFb_yoWxXF18pF WfGFW7Cr1kAr4S9rnY9F9rJF4rXrsrWFy8ArykXa47ur1xWr1rCr4xt3WYyF93Wr97trWr Z3ySgF4UCrWxZrJanT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUvlb4IE77IF4wAFF20E14v26rWj6s0DM7CY07I20VC2zVCF04k2 6cxKx2IYs7xG6rWj6s0DM7CIcVAFz4kK6r1j6r18M28IrcIa0xkI8VA2jI8067AKxVWUXw A2048vs2IY020Ec7CjxVAFwI0_Gr0_Xr1l8cAvFVAK0II2c7xJM28CjxkF64kEwVA0rcxS w2x7M28EF7xvwVC0I7IYx2IY67AKxVW7JVWDJwA2z4x0Y4vE2Ix0cI8IcVCY1x0267AKxV WxJVW8Jr1l84ACjcxK6I8E87Iv67AKxVW0oVCq3wA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_ GcCE3s1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx 0E2Ix0cI8IcVAFwI0_Jr0_Jr4lYx0Ex4A2jsIE14v26r1j6r4UMcvjeVCFs4IE7xkEbVWU JVW8JwACjcxG0xvY0x0EwIxGrwCF04k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJV W8JwC20s026c02F40E14v26r1j6r18MI8I3I0E7480Y4vE14v26r106r1rMI8E67AF67kF 1VAFwI0_Jw0_GFylIxkGc2Ij64vIr41lIxAIcVC0I7IYx2IY67AKxVWUJVWUCwCI42IY6x IIjxv20xvEc7CjxVAFwI0_Gr0_Cr1lIxAIcVCF04k26cxKx2IYs7xG6r1j6r1xMIIF0xvE x4A2jsIE14v26r4j6F4UMIIF0xvEx4A2jsIEc7CjxVAFwI0_Gr0_Gr1UYxBIdaVFxhVjvj DU0xZFpf9x07je89NUUUUU= X-CM-SenderInfo: x2kd0wp0ld053x6k3tpzhluzxrxghudrp/ Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org From: Zhang Xiaoxu Allow test case config bpf program read/write regs. @property def configs(self): return { CFG_REG_MASK: 0x3f } CFG_REG_MASK: mask reg before use CFG_REG_RSH: right shift reg before use CFG_REG_LSH: left shift reg before use CFG_REG_ORD: swap reg byteorder before use Signed-off-by: Wei Yongjun Signed-off-by: Zhang Xiaoxu --- tools/testing/kddv/kddv/core/consts.py | 12 ++ tools/testing/kddv/kddv/core/mockup.py | 28 +++++ tools/testing/kddv/kddv/core/model.py | 4 + .../kddv/data/bpf/include/bpf-xfer-conf.h | 111 ++++++++++++++++++ 4 files changed, 155 insertions(+) create mode 100755 tools/testing/kddv/kddv/core/consts.py create mode 100644 tools/testing/kddv/kddv/data/bpf/include/bpf-xfer-conf.h diff --git a/tools/testing/kddv/kddv/core/consts.py b/tools/testing/kddv/kddv/core/consts.py new file mode 100755 index 000000000000..22abd7fc655c --- /dev/null +++ b/tools/testing/kddv/kddv/core/consts.py @@ -0,0 +1,12 @@ +#!/usr/bin/env python3 +# SPDX-License-Identifier: GPL-2.0 +# +# Kernel device driver verification +# +# Copyright (C) 2022-2023 Huawei Technologies Co., Ltd +# Author: Wei Yongjun + +CFG_REG_MASK = 0x10 +CFG_REG_RSH = 0x11 +CFG_REG_LSH = 0x12 +CFG_REG_ORD = 0x13 diff --git a/tools/testing/kddv/kddv/core/mockup.py b/tools/testing/kddv/kddv/core/mockup.py index b5e6c83c9164..8bea2db97232 100755 --- a/tools/testing/kddv/kddv/core/mockup.py +++ b/tools/testing/kddv/kddv/core/mockup.py @@ -29,6 +29,7 @@ class Mockup(object): self.bpf = p.bpf self.addr = p.address self.devid = p.device_id + self.configs = p.configs self.regshift = p.regshift self.regbytes = p.regbytes self.valbytes = p.valbytes @@ -103,6 +104,7 @@ class Mockup(object): def load(self): self.load_bpf() self.load_regmaps() + self.load_configs() self.create_device() def unload(self): @@ -116,6 +118,32 @@ class Mockup(object): def to_bpf_bytes(self, val, len): return list("%d" % n for n in list(val.to_bytes(len, 'little'))) + def write_bpf_map(self, name, addr, val): + cmds = [self.bpftool, 'map', 'update'] + cmds += ['name', name] + cmds += ['key'] + cmds += self.to_bpf_bytes(addr, 4) + cmds += ['value'] + cmds += self.to_bpf_bytes(val, 4) + logger.debug(' '.join(cmds)) + subprocess.check_output(cmds) + + def write_config(self, addr, val): + if self.bpf is None: + return + self.write_bpf_map('bpf_xfer_conf', addr, val) + + def write_configs(self, addr, data): + for i in range(len(data)): + self.write_config(addr + i, data[i]) + + def load_configs(self): + for reg, value in self.configs.items(): + if isinstance(value, list): + self.write_configs(reg, value) + else: + self.write_config(reg, value) + def load_regmaps(self): for reg, value in self.regmaps.items(): if isinstance(value, list): diff --git a/tools/testing/kddv/kddv/core/model.py b/tools/testing/kddv/kddv/core/model.py index 9da4716df7dc..494b69566536 100755 --- a/tools/testing/kddv/kddv/core/model.py +++ b/tools/testing/kddv/kddv/core/model.py @@ -67,6 +67,10 @@ class DriverModel(object): def valbytes(self): return 1 + @property + def configs(self): + return {} + @property def regmaps(self): return {} diff --git a/tools/testing/kddv/kddv/data/bpf/include/bpf-xfer-conf.h b/tools/testing/kddv/kddv/data/bpf/include/bpf-xfer-conf.h new file mode 100644 index 000000000000..49adbcc6a1af --- /dev/null +++ b/tools/testing/kddv/kddv/data/bpf/include/bpf-xfer-conf.h @@ -0,0 +1,111 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * The bpf program of control xfer configuration + * + * Copyright (C) 2022-2023 Huawei Technologies Co., Ltd + */ + +#ifndef __BPF_XFER_CONF_ +#define __BPF_XFER_CONF_ + +#include "vmlinux.h" +#include +#include + +#define CONF_REGS_SIZE 0x100 + +#define BPF_CONF_REG_MASK 0x10 +#define BPF_CONF_REG_RSHIFT 0x11 +#define BPF_CONF_REG_LSHIFT 0x12 +#define BPF_CONF_REG_XBSWAP 0x13 + +struct { + __uint(type, BPF_MAP_TYPE_ARRAY); + __uint(max_entries, CONF_REGS_SIZE); + __type(key, __u32); + __type(value, __u32); +} bpf_xfer_conf SEC(".maps"); + +static u32 bpf_reg_mask, bpf_reg_xbswap; +static u32 bpf_reg_rshift, bpf_reg_lshift; + +static u32 bpf_xfer_read_conf(u32 key) +{ + u32 *reg; + + reg = bpf_map_lookup_elem(&bpf_xfer_conf, &key); + if (!reg) { + bpf_printk("config key %d not exists", key); + return 0; + } + + return *reg; +} + +static int bpf_xfer_write_conf(u32 key, u32 value) +{ + if (bpf_map_update_elem(&bpf_xfer_conf, &key, &value, + BPF_EXIST)) { + bpf_printk("config key %d not exists", key); + return -1; + } + + return 0; +} + +static int bpf_xfer_update_config(void) +{ + bpf_reg_mask = bpf_xfer_read_conf(BPF_CONF_REG_MASK); + bpf_reg_rshift = bpf_xfer_read_conf(BPF_CONF_REG_RSHIFT); + bpf_reg_lshift = bpf_xfer_read_conf(BPF_CONF_REG_LSHIFT); + bpf_reg_xbswap = bpf_xfer_read_conf(BPF_CONF_REG_XBSWAP); + + return 0; +} + +u8 bpf_xfer_reg_u8(u8 reg) +{ + reg = reg & (bpf_reg_mask ? bpf_reg_mask : 0xff); + if (bpf_reg_rshift) + reg = reg >> bpf_reg_rshift; + if (bpf_reg_lshift) + reg = reg << bpf_reg_lshift; + return reg; +} + +u16 bpf_xfer_reg_u16(u16 reg) +{ + if (bpf_reg_xbswap) + reg = __builtin_bswap16(reg); + reg = reg & (bpf_reg_mask ? bpf_reg_mask : 0x7fff); + if (bpf_reg_rshift) + reg = reg >> bpf_reg_rshift; + if (bpf_reg_lshift) + reg = reg << bpf_reg_lshift; + return reg; +} + +u32 bpf_xfer_reg_u24(u32 reg) +{ + if (bpf_reg_xbswap) + reg = __builtin_bswap32(reg); + reg = reg & (bpf_reg_mask ? bpf_reg_mask : 0x7fffff); + if (bpf_reg_rshift) + reg = reg >> bpf_reg_rshift; + if (bpf_reg_lshift) + reg = reg << bpf_reg_lshift; + return reg; +} + +u32 bpf_xfer_reg_u32(u32 reg) +{ + if (bpf_reg_xbswap) + reg = __builtin_bswap32(reg); + reg = reg & (bpf_reg_mask ? bpf_reg_mask : 0x7fffffff); + if (bpf_reg_rshift) + reg = reg >> bpf_reg_rshift; + if (bpf_reg_lshift) + reg = reg << bpf_reg_lshift; + return reg; +} +#endif