From patchwork Tue Apr 9 08:41:31 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Zhao1, Wei" X-Patchwork-Id: 52452 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 562C35A6E; Tue, 9 Apr 2019 11:09:25 +0200 (CEST) Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by dpdk.org (Postfix) with ESMTP id BB7875A6A; Tue, 9 Apr 2019 11:09:23 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 09 Apr 2019 02:09:22 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,328,1549958400"; d="scan'208";a="134201858" Received: from dpdk6.bj.intel.com ([172.16.182.192]) by orsmga006.jf.intel.com with ESMTP; 09 Apr 2019 02:09:21 -0700 From: Wei Zhao To: dev@dpdk.org Cc: stable@dpdk.org, ferruh.yigit@intel.com, yuan.peng@intel.com, Wei Zhao Date: Tue, 9 Apr 2019 16:41:31 +0800 Message-Id: <1554799291-18471-1-git-send-email-wei.zhao1@intel.com> X-Mailer: git-send-email 2.7.5 In-Reply-To: <1553224548-37749-1-git-send-email-wei.zhao1@intel.com> References: <1553224548-37749-1-git-send-email-wei.zhao1@intel.com> Subject: [dpdk-dev] [PATCH v4] 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 Reviewed-by: Ferruh Yigit --- v2: fix bug of string length limite. v3: use isxdigit to check char string v4: fix bug in set memory to zero and change code for translating string to hex --- app/test-pmd/cmdline_flow.c | 128 +++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 127 insertions(+), 1 deletion(-) diff --git a/app/test-pmd/cmdline_flow.c b/app/test-pmd/cmdline_flow.c index 1c83bc9..54ff175 100644 --- a/app/test-pmd/cmdline_flow.c +++ b/app/test-pmd/cmdline_flow.c @@ -36,6 +36,7 @@ enum index { PREFIX, BOOLEAN, STRING, + HEX, MAC_ADDR, IPV4_ADDR, IPV6_ADDR, @@ -1123,6 +1124,9 @@ 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); @@ -1199,6 +1203,13 @@ 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", @@ -2307,7 +2318,7 @@ 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) + @@ -4476,6 +4487,121 @@ parse_string(struct context *ctx, const struct token *token, return -1; } +static int +parse_hex_string(const char *src, uint8_t *dst, uint32_t *size) +{ + char *c = NULL; + uint32_t i, len; + char tmp[3]; + + /* Check input parameters */ + if ((src == NULL) || + (dst == NULL) || + (size == NULL) || + (*size == 0)) + return -1; + + /* Convert chars to bytes */ + for (i = 0, len = 0; i < *size; i += 2) { + snprintf(tmp, 3, "%s", src + i); + dst[len++] = strtoul(tmp, &c, 16); + if (*c != 0) { + len--; + dst[len] = 0; + *size = len; + return -1; + } + } + dst[len] = 0; + *size = len; + + 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 + hexlen, 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. *