From mboxrd@z Thu Jan 1 00:00:00 1970 From: Adrien Mazarguil Subject: [PATCH v2 08/13] app/testpmd: fix RSS flow action configuration Date: Wed, 4 Apr 2018 16:57:59 +0200 Message-ID: <20180404144805.11966-9-adrien.mazarguil@6wind.com> References: <20180323124725.15806-1-adrien.mazarguil@6wind.com> <20180404144805.11966-1-adrien.mazarguil@6wind.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: stable@dpdk.org, Wenzhuo Lu , Jingjing Wu To: dev@dpdk.org Return-path: Received: from mail-wr0-f193.google.com (mail-wr0-f193.google.com [209.85.128.193]) by dpdk.org (Postfix) with ESMTP id 138F71C724 for ; Wed, 4 Apr 2018 16:58:14 +0200 (CEST) Received: by mail-wr0-f193.google.com with SMTP id c24so23198627wrc.6 for ; Wed, 04 Apr 2018 07:58:14 -0700 (PDT) Content-Disposition: inline In-Reply-To: <20180404144805.11966-1-adrien.mazarguil@6wind.com> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Except for a list of queues, RSS configuration (hash key and fields) cannot be specified from the flow command line and testpmd does not provide safe defaults either. In order to validate their implementation with testpmd, PMDs had to interpret its NULL RSS configuration parameters somehow, however this has never been valid to begin with. This patch makes testpmd always provide default values. Fixes: 05d34c6e9d2c ("app/testpmd: add queue actions to flow command") Cc: stable@dpdk.org Signed-off-by: Adrien Mazarguil Cc: Wenzhuo Lu Cc: Jingjing Wu --- app/test-pmd/cmdline_flow.c | 104 +++++++++++++++++++++++++---- app/test-pmd/config.c | 140 +++++++++++++++++++++++++++------------ 2 files changed, 191 insertions(+), 53 deletions(-) diff --git a/app/test-pmd/cmdline_flow.c b/app/test-pmd/cmdline_flow.c index c2cf415ef..890c36d8e 100644 --- a/app/test-pmd/cmdline_flow.c +++ b/app/test-pmd/cmdline_flow.c @@ -184,13 +184,19 @@ enum index { #define ITEM_RAW_SIZE \ (offsetof(struct rte_flow_item_raw, pattern) + ITEM_RAW_PATTERN_SIZE) -/** Number of queue[] entries in struct rte_flow_action_rss. */ -#define ACTION_RSS_NUM 32 - -/** Storage size for struct rte_flow_action_rss including queues. */ -#define ACTION_RSS_SIZE \ - (offsetof(struct rte_flow_action_rss, queue) + \ - sizeof(*((struct rte_flow_action_rss *)0)->queue) * ACTION_RSS_NUM) +/** Maximum number of queue indices in struct rte_flow_action_rss. */ +#define ACTION_RSS_QUEUE_NUM 32 + +/** Storage for struct rte_flow_action_rss including external data. */ +union action_rss_data { + struct rte_flow_action_rss conf; + struct { + uint8_t conf_data[offsetof(struct rte_flow_action_rss, queue)]; + uint16_t queue[ACTION_RSS_QUEUE_NUM]; + struct rte_eth_rss_conf rss_conf; + uint8_t rss_key[RSS_HASH_KEY_LENGTH]; + } s; +}; /** Maximum number of subsequent tokens and arguments on the stack. */ #define CTX_STACK_SIZE 16 @@ -316,6 +322,13 @@ struct token { .size = (sz), \ }) +/** Static initializer for ARGS() with arbitrary offset and size. */ +#define ARGS_ENTRY_ARB(o, s) \ + (&(const struct arg){ \ + .offset = (o), \ + .size = (s), \ + }) + /** Same as ARGS_ENTRY() using network byte ordering. */ #define ARGS_ENTRY_HTON(s, f) \ (&(const struct arg){ \ @@ -650,6 +663,9 @@ static int parse_vc_spec(struct context *, const struct token *, const char *, unsigned int, void *, unsigned int); static int parse_vc_conf(struct context *, const struct token *, const char *, unsigned int, void *, unsigned int); +static int parse_vc_action_rss(struct context *, const struct token *, + const char *, unsigned int, void *, + unsigned int); static int parse_vc_action_rss_queue(struct context *, const struct token *, const char *, unsigned int, void *, unsigned int); @@ -1573,9 +1589,9 @@ static const struct token token_list[] = { [ACTION_RSS] = { .name = "rss", .help = "spread packets among several queues", - .priv = PRIV_ACTION(RSS, ACTION_RSS_SIZE), + .priv = PRIV_ACTION(RSS, sizeof(union action_rss_data)), .next = NEXT(action_rss), - .call = parse_vc, + .call = parse_vc_action_rss, }, [ACTION_RSS_QUEUES] = { .name = "queues", @@ -2004,6 +2020,64 @@ parse_vc_conf(struct context *ctx, const struct token *token, return len; } +/** Parse RSS action. */ +static int +parse_vc_action_rss(struct context *ctx, const struct token *token, + const char *str, unsigned int len, + void *buf, unsigned int size) +{ + struct buffer *out = buf; + struct rte_flow_action *action; + union action_rss_data *action_rss_data; + unsigned int i; + int ret; + + ret = parse_vc(ctx, token, str, len, buf, size); + if (ret < 0) + return ret; + /* Nothing else to do if there is no buffer. */ + if (!out) + return ret; + if (!out->args.vc.actions_n) + return -1; + action = &out->args.vc.actions[out->args.vc.actions_n - 1]; + /* Point to selected object. */ + ctx->object = out->args.vc.data; + ctx->objmask = NULL; + /* Set up default configuration. */ + action_rss_data = ctx->object; + *action_rss_data = (union action_rss_data){ + .conf = (struct rte_flow_action_rss){ + .rss_conf = &action_rss_data->s.rss_conf, + .num = RTE_MIN(nb_rxq, ACTION_RSS_QUEUE_NUM), + }, + }; + action_rss_data->s.rss_conf = (struct rte_eth_rss_conf){ + .rss_key = action_rss_data->s.rss_key, + .rss_key_len = sizeof(action_rss_data->s.rss_key), + .rss_hf = rss_hf, + }; + strncpy((void *)action_rss_data->s.rss_key, + "testpmd's default RSS hash key", + sizeof(action_rss_data->s.rss_key)); + for (i = 0; i < action_rss_data->conf.num; ++i) + action_rss_data->conf.queue[i] = i; + if (!port_id_is_invalid(ctx->port, DISABLED_WARN) && + ctx->port != (portid_t)RTE_PORT_ALL) { + if (rte_eth_dev_rss_hash_conf_get + (ctx->port, &action_rss_data->s.rss_conf) < 0) { + struct rte_eth_dev_info info; + + rte_eth_dev_info_get(ctx->port, &info); + action_rss_data->s.rss_conf.rss_key_len = + RTE_MIN(sizeof(action_rss_data->s.rss_key), + info.hash_key_size); + } + } + action->conf = &action_rss_data->conf; + return ret; +} + /** * Parse queue field for RSS action. * @@ -2015,6 +2089,7 @@ parse_vc_action_rss_queue(struct context *ctx, const struct token *token, void *buf, unsigned int size) { static const enum index next[] = NEXT_ENTRY(ACTION_RSS_QUEUE); + union action_rss_data *action_rss_data; int ret; int i; @@ -2028,9 +2103,13 @@ parse_vc_action_rss_queue(struct context *ctx, const struct token *token, ctx->objdata &= 0xffff; return len; } - if (i >= ACTION_RSS_NUM) + if (i >= ACTION_RSS_QUEUE_NUM) return -1; - if (push_args(ctx, ARGS_ENTRY(struct rte_flow_action_rss, queue[i]))) + if (push_args(ctx, + ARGS_ENTRY_ARB(offsetof(struct rte_flow_action_rss, + queue) + + i * sizeof(action_rss_data->s.queue[i]), + sizeof(action_rss_data->s.queue[i])))) return -1; ret = parse_int(ctx, token, str, len, NULL, 0); if (ret < 0) { @@ -2045,7 +2124,8 @@ parse_vc_action_rss_queue(struct context *ctx, const struct token *token, ctx->next[ctx->next_num++] = next; if (!ctx->object) return len; - ((struct rte_flow_action_rss *)ctx->object)->num = i; + action_rss_data = ctx->object; + action_rss_data->conf.num = i; return len; } diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c index 4bb255c62..aab5db355 100644 --- a/app/test-pmd/config.c +++ b/app/test-pmd/config.c @@ -982,31 +982,51 @@ static const struct { MK_FLOW_ITEM(GENEVE, sizeof(struct rte_flow_item_geneve)), }; -/** Compute storage space needed by item specification. */ -static void -flow_item_spec_size(const struct rte_flow_item *item, - size_t *size, size_t *pad) +/** Pattern item specification types. */ +enum item_spec_type { + ITEM_SPEC, + ITEM_LAST, + ITEM_MASK, +}; + +/** Compute storage space needed by item specification and copy it. */ +static size_t +flow_item_spec_copy(void *buf, const struct rte_flow_item *item, + enum item_spec_type type) { - if (!item->spec) { - *size = 0; + size_t size = 0; + const void *item_spec = + type == ITEM_SPEC ? item->spec : + type == ITEM_LAST ? item->last : + type == ITEM_MASK ? item->mask : + NULL; + + if (!item_spec) goto empty; - } switch (item->type) { union { const struct rte_flow_item_raw *raw; - } spec; + } src; + union { + struct rte_flow_item_raw *raw; + } dst; case RTE_FLOW_ITEM_TYPE_RAW: - spec.raw = item->spec; - *size = offsetof(struct rte_flow_item_raw, pattern) + - spec.raw->length * sizeof(*spec.raw->pattern); + src.raw = item_spec; + dst.raw = buf; + size = offsetof(struct rte_flow_item_raw, pattern) + + src.raw->length * sizeof(*src.raw->pattern); + if (dst.raw) + memcpy(dst.raw, src.raw, size); break; default: - *size = flow_item[item->type].size; + size = flow_item[item->type].size; + if (buf) + memcpy(buf, item_spec, size); break; } empty: - *pad = RTE_ALIGN_CEIL(*size, sizeof(double)) - *size; + return RTE_ALIGN_CEIL(size, sizeof(double)); } /** Generate flow_action[] entry. */ @@ -1036,31 +1056,72 @@ static const struct { MK_FLOW_ACTION(METER, sizeof(struct rte_flow_action_meter)), }; -/** Compute storage space needed by action configuration. */ -static void -flow_action_conf_size(const struct rte_flow_action *action, - size_t *size, size_t *pad) +/** Compute storage space needed by action configuration and copy it. */ +static size_t +flow_action_conf_copy(void *buf, const struct rte_flow_action *action) { - if (!action->conf) { - *size = 0; + size_t size = 0; + + if (!action->conf) goto empty; - } switch (action->type) { union { const struct rte_flow_action_rss *rss; - } conf; + } src; + union { + struct rte_flow_action_rss *rss; + } dst; + size_t off; case RTE_FLOW_ACTION_TYPE_RSS: - conf.rss = action->conf; - *size = offsetof(struct rte_flow_action_rss, queue) + - conf.rss->num * sizeof(*conf.rss->queue); + src.rss = action->conf; + dst.rss = buf; + off = 0; + if (dst.rss) + *dst.rss = (struct rte_flow_action_rss){ + .num = src.rss->num, + }; + off += offsetof(struct rte_flow_action_rss, queue); + if (src.rss->num) { + size = sizeof(*src.rss->queue) * src.rss->num; + if (dst.rss) + memcpy(dst.rss->queue, src.rss->queue, size); + off += size; + } + off = RTE_ALIGN_CEIL(off, sizeof(double)); + if (dst.rss) { + dst.rss->rss_conf = (void *)((uintptr_t)dst.rss + off); + *(struct rte_eth_rss_conf *)(uintptr_t) + dst.rss->rss_conf = (struct rte_eth_rss_conf){ + .rss_key_len = src.rss->rss_conf->rss_key_len, + .rss_hf = src.rss->rss_conf->rss_hf, + }; + } + off += sizeof(*src.rss->rss_conf); + if (src.rss->rss_conf->rss_key_len) { + off = RTE_ALIGN_CEIL(off, sizeof(double)); + size = sizeof(*src.rss->rss_conf->rss_key) * + src.rss->rss_conf->rss_key_len; + if (dst.rss) { + ((struct rte_eth_rss_conf *)(uintptr_t) + dst.rss->rss_conf)->rss_key = + (void *)((uintptr_t)dst.rss + off); + memcpy(dst.rss->rss_conf->rss_key, + src.rss->rss_conf->rss_key, + size); + } + off += size; + } + size = off; break; default: - *size = flow_action[action->type].size; + size = flow_action[action->type].size; + if (buf) + memcpy(buf, action->conf, size); break; } empty: - *pad = RTE_ALIGN_CEIL(*size, sizeof(double)) - *size; + return RTE_ALIGN_CEIL(size, sizeof(double)); } /** Generate a port_flow entry from attributes/pattern/actions. */ @@ -1073,7 +1134,6 @@ port_flow_new(const struct rte_flow_attr *attr, const struct rte_flow_action *action; struct port_flow *pf = NULL; size_t tmp; - size_t pad; size_t off1 = 0; size_t off2 = 0; int err = ENOTSUP; @@ -1091,24 +1151,23 @@ port_flow_new(const struct rte_flow_attr *attr, if (pf) dst = memcpy(pf->data + off1, item, sizeof(*item)); off1 += sizeof(*item); - flow_item_spec_size(item, &tmp, &pad); if (item->spec) { if (pf) - dst->spec = memcpy(pf->data + off2, - item->spec, tmp); - off2 += tmp + pad; + dst->spec = pf->data + off2; + off2 += flow_item_spec_copy + (pf ? pf->data + off2 : NULL, item, ITEM_SPEC); } if (item->last) { if (pf) - dst->last = memcpy(pf->data + off2, - item->last, tmp); - off2 += tmp + pad; + dst->last = pf->data + off2; + off2 += flow_item_spec_copy + (pf ? pf->data + off2 : NULL, item, ITEM_LAST); } if (item->mask) { if (pf) - dst->mask = memcpy(pf->data + off2, - item->mask, tmp); - off2 += tmp + pad; + dst->mask = pf->data + off2; + off2 += flow_item_spec_copy + (pf ? pf->data + off2 : NULL, item, ITEM_MASK); } off2 = RTE_ALIGN_CEIL(off2, sizeof(double)); } while ((item++)->type != RTE_FLOW_ITEM_TYPE_END); @@ -1125,12 +1184,11 @@ port_flow_new(const struct rte_flow_attr *attr, if (pf) dst = memcpy(pf->data + off1, action, sizeof(*action)); off1 += sizeof(*action); - flow_action_conf_size(action, &tmp, &pad); if (action->conf) { if (pf) - dst->conf = memcpy(pf->data + off2, - action->conf, tmp); - off2 += tmp + pad; + dst->conf = pf->data + off2; + off2 += flow_action_conf_copy + (pf ? pf->data + off2 : NULL, action); } off2 = RTE_ALIGN_CEIL(off2, sizeof(double)); } while ((action++)->type != RTE_FLOW_ACTION_TYPE_END); -- 2.11.0