From patchwork Mon Mar 18 08:16:01 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Zhao1, Wei" X-Patchwork-Id: 51262 X-Patchwork-Delegate: ferruh.yigit@amd.com Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 68955152A; Mon, 18 Mar 2019 09:43:37 +0100 (CET) Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by dpdk.org (Postfix) with ESMTP id 17EBA11A4; Mon, 18 Mar 2019 09:43:34 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 18 Mar 2019 01:43:33 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.58,493,1544515200"; d="scan'208";a="152652853" Received: from dpdk6.bj.intel.com ([172.16.182.192]) by fmsmga002.fm.intel.com with ESMTP; 18 Mar 2019 01:43:31 -0700 From: Wei Zhao To: dev@dpdk.org Cc: stable@dpdk.org, qi.z.zhang@intel.com, wenzhuo.lu@intel.com, konstantin.ananyev@intel.com, Wei Zhao Date: Mon, 18 Mar 2019 16:16:01 +0800 Message-Id: <1552896961-33681-1-git-send-email-wei.zhao1@intel.com> X-Mailer: git-send-email 2.7.5 In-Reply-To: <1552639435-68184-1-git-send-email-wei.zhao1@intel.com> References: <1552639435-68184-1-git-send-email-wei.zhao1@intel.com> Subject: [dpdk-dev] [PATCH v2] app/testpmd: fix support of hex string parser for flow API X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" There is need for users to set configuration of HEX number for RSS key. The key byte should be pass down as hex number not as char string. This patch enable cmdline flow parse HEX number, in order to not using string which pass ASIC number. Fixes: f4d623f96119 ("app/testpmd: fix missing RSS fields in flow action") Cc: stable@dpdk.org Signed-off-by: Wei Zhao Tested-by: Peng Yuan --- v2: fix bug of string length limite. --- app/test-pmd/cmdline_flow.c | 146 +++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 145 insertions(+), 1 deletion(-) diff --git a/app/test-pmd/cmdline_flow.c b/app/test-pmd/cmdline_flow.c index 36659a6..7d263c6 100644 --- a/app/test-pmd/cmdline_flow.c +++ b/app/test-pmd/cmdline_flow.c @@ -35,6 +35,7 @@ enum index { PREFIX, BOOLEAN, STRING, + HEX, MAC_ADDR, IPV4_ADDR, IPV6_ADDR, @@ -1122,6 +1123,9 @@ static int parse_boolean(struct context *, const struct token *, static int parse_string(struct context *, const struct token *, const char *, unsigned int, void *, unsigned int); +static int parse_hex(struct context *ctx, const struct token *token, + const char *str, unsigned int len, + void *buf, unsigned int size); static int parse_mac_addr(struct context *, const struct token *, const char *, unsigned int, void *, unsigned int); @@ -1198,6 +1202,13 @@ static const struct token token_list[] = { .call = parse_string, .comp = comp_none, }, + [HEX] = { + .name = "{hex}", + .type = "HEX", + .help = "fixed string", + .call = parse_hex, + .comp = comp_none, + }, [MAC_ADDR] = { .name = "{MAC address}", .type = "MAC-48", @@ -2306,7 +2317,7 @@ static const struct token token_list[] = { [ACTION_RSS_KEY] = { .name = "key", .help = "RSS hash key", - .next = NEXT(action_rss, NEXT_ENTRY(STRING)), + .next = NEXT(action_rss, NEXT_ENTRY(HEX)), .args = ARGS(ARGS_ENTRY_ARB(0, 0), ARGS_ENTRY_ARB (offsetof(struct action_rss_data, conf) + @@ -4475,6 +4486,139 @@ parse_string(struct context *ctx, const struct token *token, return -1; } +static uint32_t +get_hex_val(char c) +{ + switch (c) { + case '0': case '1': case '2': case '3': case '4': case '5': + case '6': case '7': case '8': case '9': + return c - '0'; + case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': + return c - 'A' + 10; + case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': + return c - 'a' + 10; + default: + return 0; + } +} + +static int +parse_hex_string(const char *src, uint8_t *dst, uint32_t *size) +{ + const char *c; + uint32_t i; + + /* Check input parameters */ + if ((src == NULL) || + (dst == NULL) || + (size == NULL) || + (*size == 0)) + return -1; + if ((*size & 1) != 0) + return -1; + + for (c = src, i = 0; i < *size; c++, i++) { + if ((((*c) >= '0') && ((*c) <= '9')) || + (((*c) >= 'A') && ((*c) <= 'F')) || + (((*c) >= 'a') && ((*c) <= 'f'))) + continue; + + return -1; + } + *size = *size / 2; + + /* Convert chars to bytes */ + for (i = 0; i < *size; i++) + dst[i] = get_hex_val(src[2 * i]) * 16 + + get_hex_val(src[2 * i + 1]); + + return 0; +} + +static int +parse_hex(struct context *ctx, const struct token *token, + const char *str, unsigned int len, + void *buf, unsigned int size) +{ + const struct arg *arg_data = pop_args(ctx); + const struct arg *arg_len = pop_args(ctx); + const struct arg *arg_addr = pop_args(ctx); + char tmp[16]; /* Ought to be enough. */ + int ret; + unsigned int hexlen = len; + unsigned int length = 256; + uint8_t hex_tmp[length]; + + /* Arguments are expected. */ + if (!arg_data) + return -1; + if (!arg_len) { + push_args(ctx, arg_data); + return -1; + } + if (!arg_addr) { + push_args(ctx, arg_len); + push_args(ctx, arg_data); + return -1; + } + size = arg_data->size; + /* Bit-mask fill is not supported. */ + if (arg_data->mask) + goto error; + if (!ctx->object) + return len; + + /* translate bytes string to array. */ + if (str[0] == '0' && ((str[1] == 'x') || + (str[1] == 'X'))) { + str += 2; + hexlen -= 2; + } + if (hexlen > length) + return -1; + ret = parse_hex_string(str, hex_tmp, &hexlen); + if (ret < 0) + goto error; + /* Let parse_int() fill length information first. */ + ret = snprintf(tmp, sizeof(tmp), "%u", hexlen); + if (ret < 0) + goto error; + push_args(ctx, arg_len); + ret = parse_int(ctx, token, tmp, ret, NULL, 0); + if (ret < 0) { + pop_args(ctx); + goto error; + } + buf = (uint8_t *)ctx->object + arg_data->offset; + /* Output buffer is not necessarily NUL-terminated. */ + memcpy(buf, hex_tmp, hexlen); + memset((uint8_t *)buf + len, 0x00, size - hexlen); + if (ctx->objmask) + memset((uint8_t *)ctx->objmask + arg_data->offset, + 0xff, hexlen); + /* Save address if requested. */ + if (arg_addr->size) { + memcpy((uint8_t *)ctx->object + arg_addr->offset, + (void *[]){ + (uint8_t *)ctx->object + arg_data->offset + }, + arg_addr->size); + if (ctx->objmask) + memcpy((uint8_t *)ctx->objmask + arg_addr->offset, + (void *[]){ + (uint8_t *)ctx->objmask + arg_data->offset + }, + arg_addr->size); + } + return len; +error: + push_args(ctx, arg_addr); + push_args(ctx, arg_len); + push_args(ctx, arg_data); + return -1; + +} + /** * Parse a MAC address. *