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From: Yuanhan Liu <yliu@fridaylinux.org>
To: Jiayu Hu <jiayu.hu@intel.com>
Cc: dev@dpdk.org, konstantin.ananyev@intel.com,
	stephen@networkplumber.org, jianfeng.tan@intel.com,
	jingjing.wu@intel.com, lei.a.yao@intel.com, tiwei.bie@intel.com
Subject: Re: [dpdk-dev] [PATCH v10 2/3] lib/gro: add TCP/IPv4 GRO support
Date: Tue, 4 Jul 2017 17:03:04 +0800	[thread overview]
Message-ID: <20170704090304.GL11626@yliu-home> (raw)
In-Reply-To: <1498907323-17563-3-git-send-email-jiayu.hu@intel.com>

Again, just some quick comments after a glimpse.

On Sat, Jul 01, 2017 at 07:08:42PM +0800, Jiayu Hu wrote:
> +	for (i = 0; i < nb_pkts; i++) {
> +		if (RTE_ETH_IS_IPV4_HDR(pkts[i]->packet_type) &&
> +				(pkts[i]->packet_type & RTE_PTYPE_L4_TCP)) {
> +			ret = gro_tcp4_reassemble(pkts[i],
> +					&tcp_tbl,
> +					param->max_packet_size,
> +					current_time);
> +			if (ret > 0)
> +				/* merge successfully */
> +				nb_after_gro--;
> +			else if (ret < 0)
> +				unprocess_pkts[unprocess_num++] =
> +					pkts[i];

Even it's just one statement, if the statement is spawned more than
one line, including the comment, the {} should be used.

Section 1.6.2. Control Statements and Loops of:
http://dpdk.org/doc/guides/contributing/coding_style.html

> +		} else
> +			unprocess_pkts[unprocess_num++] =
> +				pkts[i];

Besides, why breaking it to two lines, judging that it can be fit into
one line smaller than 80 chars.

> +	}
> +
> +	/* re-arrange GROed packets */
> +	if (nb_after_gro < nb_pkts) {
> +		i = gro_tcp4_tbl_timeout_flush(&tcp_tbl, 0,
> +				pkts, nb_pkts);
> +		if (unprocess_num > 0)
> +			memcpy(&pkts[i], unprocess_pkts,
> +					sizeof(struct rte_mbuf *) *
> +					unprocess_num);

Ditto.

> +void *gro_tcp4_tbl_create(uint16_t socket_id,
> +		uint16_t max_flow_num,
> +		uint16_t max_item_per_flow)
> +{
> +	size_t size;
> +	uint32_t entries_num;
> +	struct gro_tcp4_tbl *tbl;
> +
> +	entries_num = max_flow_num * max_item_per_flow;
> +	entries_num = entries_num > GRO_TCP4_TBL_MAX_ITEM_NUM ?
> +		GRO_TCP4_TBL_MAX_ITEM_NUM : entries_num;
> +
> +	if (entries_num == 0)
> +		return NULL;
> +
> +	tbl = (struct gro_tcp4_tbl *)rte_zmalloc_socket(
> +			__func__,
> +			sizeof(struct gro_tcp4_tbl),
> +			RTE_CACHE_LINE_SIZE,
> +			socket_id);

Again, the cast (from void *) is unnessary and should be dropped.

> +	memcpy(&(tbl->keys[key_idx].key),
> +			&key, sizeof(struct tcp4_key));

Again, I believe they two can be fit into one single line.

	--yliu

  parent reply	other threads:[~2017-07-04  9:03 UTC|newest]

Thread overview: 141+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-22  9:32 [dpdk-dev] [PATCH 0/2] lib: add TCP IPv4 " Jiayu Hu
2017-03-22  9:32 ` [dpdk-dev] [PATCH 1/2] lib: add Generic Receive Offload support for TCP IPv4 packets Jiayu Hu
2017-03-22  9:32 ` [dpdk-dev] [PATCH 2/2] app/testpmd: provide TCP IPv4 GRO function in iofwd mode Jiayu Hu
     [not found] ` <1B893F1B-4DA8-4F88-9583-8C0BAA570832@intel.com>
     [not found]   ` <20170323021502.GA114662@localhost.localdomain>
     [not found]     ` <C830A6FC-F440-4E68-AB4E-2FD502722E3F@intel.com>
     [not found]       ` <20170323062433.GA120139@localhost.localdomain>
     [not found]         ` <59AF69C657FD0841A61C55336867B5B066729E3F@IRSMSX103.ger.corp.intel.com>
     [not found]           ` <20170323102135.GA124301@localhost.localdomain>
     [not found]             ` <2601191342CEEE43887BDE71AB9772583FAD410A@IRSMSX109.ger.corp.intel.com>
2017-03-24  2:23               ` [dpdk-dev] [PATCH 0/2] lib: add TCP IPv4 GRO support Jiayu Hu
2017-03-24  6:18                 ` Wiles, Keith
2017-03-24  7:22                   ` Yuanhan Liu
2017-03-24  8:06                     ` Jiayu Hu
2017-03-24 11:43                       ` Ananyev, Konstantin
2017-03-24 14:37                         ` Wiles, Keith
2017-03-24 14:59                           ` Olivier Matz
2017-03-24 15:07                             ` Wiles, Keith
2017-03-28 13:40                               ` Wiles, Keith
2017-03-28 13:57                                 ` Hu, Jiayu
2017-03-28 16:06                                   ` Wiles, Keith
2017-03-29 10:47                         ` Morten Brørup
2017-03-29 12:12                           ` Wiles, Keith
2017-04-04 12:31 ` [dpdk-dev] [PATCH v2 0/3] support GRO in DPDK Jiayu Hu
2017-04-04 12:31   ` [dpdk-dev] [PATCH v2 1/3] lib: add Generic Receive Offload API framework Jiayu Hu
2017-04-04 12:31   ` [dpdk-dev] [PATCH v2 2/3] lib/gro: add TCP/IPv4 GRO support Jiayu Hu
2017-04-04 12:31   ` [dpdk-dev] [PATCH v2 3/3] app/testpmd: enable GRO feature Jiayu Hu
2017-04-24  8:09   ` [dpdk-dev] [PATCH v3 0/3] support GRO in DPDK Jiayu Hu
2017-04-24  8:09     ` [dpdk-dev] [PATCH v3 1/3] lib: add Generic Receive Offload API framework Jiayu Hu
2017-05-22  9:19       ` Ananyev, Konstantin
2017-05-23 10:31         ` Jiayu Hu
2017-05-24 12:38           ` Ananyev, Konstantin
2017-05-26  7:26             ` Jiayu Hu
2017-05-26 23:10               ` Ananyev, Konstantin
2017-05-27  3:41                 ` Jiayu Hu
2017-05-27 11:12                   ` Ananyev, Konstantin
2017-05-27 14:09                     ` Jiayu Hu
2017-05-27 16:51                       ` Ananyev, Konstantin
2017-05-29 10:22                         ` Hu, Jiayu
2017-05-29 12:18                           ` Bruce Richardson
2017-05-30 14:10                             ` Hu, Jiayu
2017-05-29 12:51                           ` Ananyev, Konstantin
2017-05-30  5:29                             ` Hu, Jiayu
2017-05-30 11:56                               ` Ananyev, Konstantin
2017-04-24  8:09     ` [dpdk-dev] [PATCH v3 2/3] lib/gro: add TCP/IPv4 GRO support Jiayu Hu
2017-04-24  8:09     ` [dpdk-dev] [PATCH v3 3/3] app/testpmd: enable GRO feature Jiayu Hu
2017-06-07  9:24       ` Wu, Jingjing
2017-06-07 11:08     ` [dpdk-dev] [PATCH v4 0/3] Support TCP/IPv4 GRO in DPDK Jiayu Hu
2017-06-07 11:08       ` [dpdk-dev] [PATCH v4 1/3] lib: add Generic Receive Offload API framework Jiayu Hu
2017-06-07 11:08       ` [dpdk-dev] [PATCH v4 2/3] lib/gro: add TCP/IPv4 GRO support Jiayu Hu
2017-06-07 11:08       ` [dpdk-dev] [PATCH v4 3/3] app/testpmd: enable TCP/IPv4 GRO Jiayu Hu
2017-06-18  7:21       ` [dpdk-dev] [PATCH v5 0/3] Support TCP/IPv4 GRO in DPDK Jiayu Hu
2017-06-18  7:21         ` [dpdk-dev] [PATCH v5 1/3] lib: add Generic Receive Offload API framework Jiayu Hu
2017-06-19  4:03           ` Tiwei Bie
2017-06-19  5:16             ` Jiayu Hu
2017-06-19 15:43           ` Tan, Jianfeng
2017-06-19 15:55           ` Stephen Hemminger
2017-06-20  1:48             ` Jiayu Hu
2017-06-18  7:21         ` [dpdk-dev] [PATCH v5 2/3] lib/gro: add TCP/IPv4 GRO support Jiayu Hu
2017-06-19 15:43           ` Tan, Jianfeng
2017-06-20  3:22             ` Jiayu Hu
2017-06-20 15:15               ` Ananyev, Konstantin
2017-06-20 16:16                 ` Jiayu Hu
2017-06-20 15:21               ` Ananyev, Konstantin
2017-06-20 23:30               ` Tan, Jianfeng
2017-06-20 23:55                 ` Stephen Hemminger
2017-06-22  7:39                 ` Jiayu Hu
2017-06-22  8:18             ` Jiayu Hu
2017-06-22  9:35               ` Tan, Jianfeng
2017-06-22 13:55                 ` Jiayu Hu
2017-06-18  7:21         ` [dpdk-dev] [PATCH v5 3/3] app/testpmd: enable TCP/IPv4 GRO Jiayu Hu
2017-06-19  1:24           ` Yao, Lei A
2017-06-19  2:27           ` Wu, Jingjing
2017-06-19  3:22             ` Jiayu Hu
2017-06-19  1:39         ` [dpdk-dev] [PATCH v5 0/3] Support TCP/IPv4 GRO in DPDK Tan, Jianfeng
2017-06-19  3:07           ` Jiayu Hu
2017-06-19  5:12             ` Jiayu Hu
2017-06-23 14:43         ` [dpdk-dev] [PATCH v6 " Jiayu Hu
2017-06-23 14:43           ` [dpdk-dev] [PATCH v6 1/3] lib: add Generic Receive Offload API framework Jiayu Hu
2017-06-25 16:53             ` Tan, Jianfeng
2017-06-23 14:43           ` [dpdk-dev] [PATCH v6 2/3] lib/gro: add TCP/IPv4 GRO support Jiayu Hu
2017-06-25 16:53             ` Tan, Jianfeng
2017-06-26  1:58               ` Jiayu Hu
2017-06-23 14:43           ` [dpdk-dev] [PATCH v6 3/3] app/testpmd: enable TCP/IPv4 GRO Jiayu Hu
2017-06-24  8:01             ` Yao, Lei A
2017-06-25 16:03           ` [dpdk-dev] [PATCH v6 0/3] Support TCP/IPv4 GRO in DPDK Tan, Jianfeng
2017-06-26  1:35             ` Jiayu Hu
2017-06-26  6:43           ` [dpdk-dev] [PATCH v7 " Jiayu Hu
2017-06-26  6:43             ` [dpdk-dev] [PATCH v7 1/3] lib: add Generic Receive Offload API framework Jiayu Hu
2017-06-27 23:42               ` Ananyev, Konstantin
2017-06-28  2:17                 ` Jiayu Hu
2017-06-28 17:41                   ` Ananyev, Konstantin
2017-06-29  1:19                     ` Jiayu Hu
2017-06-26  6:43             ` [dpdk-dev] [PATCH v7 2/3] lib/gro: add TCP/IPv4 GRO support Jiayu Hu
2017-06-28 23:56               ` Ananyev, Konstantin
2017-06-29  2:26                 ` Jiayu Hu
2017-06-30 12:07                   ` Ananyev, Konstantin
2017-06-30 15:40                     ` Hu, Jiayu
2017-06-26  6:43             ` [dpdk-dev] [PATCH v7 3/3] app/testpmd: enable TCP/IPv4 GRO Jiayu Hu
2017-06-29 10:58             ` [dpdk-dev] [PATCH v8 0/3] Support TCP/IPv4 GRO in DPDK Jiayu Hu
2017-06-29 10:58               ` [dpdk-dev] [PATCH v8 1/3] lib: add Generic Receive Offload API framework Jiayu Hu
2017-06-29 10:58               ` [dpdk-dev] [PATCH v8 2/3] lib/gro: add TCP/IPv4 GRO support Jiayu Hu
2017-06-29 17:51                 ` Stephen Hemminger
2017-06-30  2:07                   ` Jiayu Hu
2017-06-29 10:59               ` [dpdk-dev] [PATCH v8 3/3] app/testpmd: enable TCP/IPv4 GRO Jiayu Hu
2017-06-30  2:26                 ` Wu, Jingjing
2017-06-30  6:53               ` [dpdk-dev] [PATCH v9 0/3] Support TCP/IPv4 GRO in DPDK Jiayu Hu
2017-06-30  6:53                 ` [dpdk-dev] [PATCH v9 1/3] lib: add Generic Receive Offload API framework Jiayu Hu
2017-06-30  6:53                 ` [dpdk-dev] [PATCH v9 2/3] lib/gro: add TCP/IPv4 GRO support Jiayu Hu
2017-06-30  6:53                 ` [dpdk-dev] [PATCH v9 3/3] app/testpmd: enable TCP/IPv4 GRO Jiayu Hu
2017-07-01 11:08                 ` [dpdk-dev] [PATCH v10 0/3] Support TCP/IPv4 GRO in DPDK Jiayu Hu
2017-07-01 11:08                   ` [dpdk-dev] [PATCH v10 1/3] lib: add Generic Receive Offload API framework Jiayu Hu
2017-07-02 10:19                     ` Tan, Jianfeng
2017-07-03  5:56                       ` Hu, Jiayu
2017-07-04  8:11                         ` Yuanhan Liu
2017-07-04  8:37                     ` Yuanhan Liu
2017-07-04 16:01                       ` Hu, Jiayu
2017-07-01 11:08                   ` [dpdk-dev] [PATCH v10 2/3] lib/gro: add TCP/IPv4 GRO support Jiayu Hu
2017-07-02 10:19                     ` Tan, Jianfeng
2017-07-03  5:13                       ` Hu, Jiayu
2017-07-04  9:03                     ` Yuanhan Liu [this message]
2017-07-04 16:03                       ` Hu, Jiayu
2017-07-01 11:08                   ` [dpdk-dev] [PATCH v10 3/3] app/testpmd: enable TCP/IPv4 GRO Jiayu Hu
2017-07-05  4:08                   ` [dpdk-dev] [PATCH v11 0/3] Support TCP/IPv4 GRO in DPDK Jiayu Hu
2017-07-05  4:08                     ` [dpdk-dev] [PATCH v11 1/3] lib: add Generic Receive Offload API framework Jiayu Hu
2017-07-07  6:55                       ` Tan, Jianfeng
2017-07-07  9:19                         ` Tan, Jianfeng
2017-07-05  4:08                     ` [dpdk-dev] [PATCH v11 2/3] lib/gro: add TCP/IPv4 GRO support Jiayu Hu
2017-07-07  6:55                       ` Tan, Jianfeng
2017-07-05  4:08                     ` [dpdk-dev] [PATCH v11 3/3] app/testpmd: enable TCP/IPv4 GRO Jiayu Hu
2017-07-07 10:39                     ` [dpdk-dev] [PATCH v12 0/3] Support TCP/IPv4 GRO in DPDK Jiayu Hu
2017-07-07 10:39                       ` [dpdk-dev] [PATCH v12 1/3] lib: add Generic Receive Offload API framework Jiayu Hu
2017-07-08 16:37                         ` Tan, Jianfeng
2017-07-07 10:39                       ` [dpdk-dev] [PATCH v12 2/3] lib/gro: add TCP/IPv4 GRO support Jiayu Hu
2017-07-08 16:37                         ` Tan, Jianfeng
2017-07-07 10:39                       ` [dpdk-dev] [PATCH v12 3/3] app/testpmd: enable TCP/IPv4 GRO Jiayu Hu
2017-07-09  1:13                       ` [dpdk-dev] [PATCH v13 0/3] Support TCP/IPv4 GRO in DPDK Jiayu Hu
2017-07-09  1:13                         ` [dpdk-dev] [PATCH v13 1/3] lib: add Generic Receive Offload API framework Jiayu Hu
2017-07-09  1:13                         ` [dpdk-dev] [PATCH v13 2/3] lib/gro: add TCP/IPv4 GRO support Jiayu Hu
2017-07-09  1:13                         ` [dpdk-dev] [PATCH v13 3/3] app/testpmd: enable TCP/IPv4 GRO Jiayu Hu
2017-07-09  5:46                         ` [dpdk-dev] [PATCH v14 0/3] Support TCP/IPv4 GRO in DPDK Jiayu Hu
2017-07-09  5:46                           ` [dpdk-dev] [PATCH v14 1/3] lib: add Generic Receive Offload API framework Jiayu Hu
2017-07-09  5:46                           ` [dpdk-dev] [PATCH v14 2/3] lib/gro: add TCP/IPv4 GRO support Jiayu Hu
2017-07-09  5:46                           ` [dpdk-dev] [PATCH v14 3/3] app/testpmd: enable TCP/IPv4 GRO Jiayu Hu
2017-07-09  7:59                             ` Yao, Lei A
2017-07-09 16:14                           ` [dpdk-dev] [PATCH v14 0/3] Support TCP/IPv4 GRO in DPDK Thomas Monjalon
2017-07-10  2:21                             ` Hu, Jiayu
2017-07-10  7:03                               ` Thomas Monjalon

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