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From: Ferruh Yigit <ferruh.yigit@intel.com>
To: "Lu, Wenzhuo" <wenzhuo.lu@intel.com>, "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH v3 3/8] net/ice: support vector SSE in RX
Date: Wed, 20 Mar 2019 17:35:04 +0000	[thread overview]
Message-ID: <0e096d66-512d-807c-eb72-b34a5db2e048@intel.com> (raw)
In-Reply-To: <6A0DE07E22DDAD4C9103DF62FEBC0909407ED905@shsmsx102.ccr.corp.intel.com>

On 3/18/2019 1:22 AM, Lu, Wenzhuo wrote:
> Hi Ferruh,
> 
>> -----Original Message-----
>> From: Yigit, Ferruh
>> Sent: Saturday, March 16, 2019 1:54 AM
>> To: Lu, Wenzhuo <wenzhuo.lu@intel.com>; dev@dpdk.org
>> Subject: Re: [dpdk-dev] [PATCH v3 3/8] net/ice: support vector SSE in RX
>>
>> On 3/15/2019 6:22 AM, Wenzhuo Lu wrote:
>>> Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
>>
>> <...>
>>
>>> @@ -305,6 +305,7 @@ CONFIG_RTE_LIBRTE_ICE_DEBUG_TX=n
>>> CONFIG_RTE_LIBRTE_ICE_DEBUG_TX_FREE=n
>>>  CONFIG_RTE_LIBRTE_ICE_RX_ALLOW_BULK_ALLOC=y
>>>  CONFIG_RTE_LIBRTE_ICE_16BYTE_RX_DESC=n
>>> +CONFIG_RTE_LIBRTE_ICE_INC_VECTOR=y
>>
>> Meson seems setting this config automatically. Do we need this compile time
>> option at all?
> It's not for meson build. It's for the traditional build. To my opinion, meson build even doesn't use the configure file. It has its own configuration inside.

I am not saying this is for meson.

This is a compile time config option, to let user enable/disable VECTOR path of
the PMD.
But meson build doesn't get this input from the user and enables it by default.
If enabling it by default works and an acceptable solution, why we are not doing
same thing for makefile.

Why not just remove the config option completely and update code as it is enabled?

In this default enabled case, if there is a need to let user disable the vector
path, which may be a need, why not add a device argument to disable the vector
path on runtime, I believe this can be done easily by described below.

What is the benefit of a compile time flag against runtime devargs?
Why someone would want to remove the all vector path from the binary, just to
gain a few kilobytes from the final binary?
But other way around, having the vector path in binary but disable it
dynamically when needed has advantage of easily enable it back without need to
recompile when the platform has vector path support.

> 
>> Would it work if we replace this with a device arg, which can be used to
>> disable vector path if set, and 'ice_rx_vec_dev_check()' can check it?
> We've implemented the dynamic selection of vector and normal path. Here is the compile setting. In case the user wants to remove the vector code thoroughly, so there may be a little performance benefit.
> 
>>
>> <...>
>>
>>> @@ -0,0 +1,155 @@
>>> +/* SPDX-License-Identifier: BSD-3-Clause
>>> + * Copyright(c) 2019 Intel Corporation  */
>>> +
>>> +#ifndef _ICE_RXTX_VEC_COMMON_H_
>>> +#define _ICE_RXTX_VEC_COMMON_H_
>>> +
>>> +#include "ice_rxtx.h"
>>> +
>>> +static inline uint16_t
>>> +reassemble_packets(struct ice_rx_queue *rxq, struct rte_mbuf **rx_bufs,
>>> +		   uint16_t nb_bufs, uint8_t *split_flags) {
>>> +	struct rte_mbuf *pkts[ICE_VPMD_RX_BURST] = {0}; /*finished pkts*/
>>> +	struct rte_mbuf *start = rxq->pkt_first_seg;
>>> +	struct rte_mbuf *end =  rxq->pkt_last_seg;
>>> +	unsigned pkt_idx, buf_idx;
>> There are checkpatch warnings for using 'unsigned int' instead of 'unsigned',
>> can you please fix them? There are a few of them.
> Sure, will fix them.
> 

  parent reply	other threads:[~2019-03-20 17:35 UTC|newest]

Thread overview: 219+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-28  7:48 [dpdk-dev] [PATCH 0/8] Support vector instructions on ICE Wenzhuo Lu
2019-02-28  7:48 ` [dpdk-dev] [PATCH 1/8] net/ice: fix TX function setting Wenzhuo Lu
2019-02-28  7:48 ` [dpdk-dev] [PATCH 2/8] net/ice: add pointer for queue buffer release Wenzhuo Lu
2019-02-28  7:48 ` [dpdk-dev] [PATCH 3/8] net/ice: support RX SSE vector Wenzhuo Lu
2019-03-01  3:44   ` Zhang, Qi Z
2019-03-04  1:27     ` Lu, Wenzhuo
2019-02-28  7:48 ` [dpdk-dev] [PATCH 4/8] net/ice: support RX scatter " Wenzhuo Lu
2019-02-28  7:48 ` [dpdk-dev] [PATCH 5/8] net/ice: support TX " Wenzhuo Lu
2019-02-28  7:48 ` [dpdk-dev] [PATCH 6/8] net/ice: support RX AVX2 vector Wenzhuo Lu
2019-02-28  7:48 ` [dpdk-dev] [PATCH 7/8] net/ice: support RX scatter " Wenzhuo Lu
2019-02-28  7:48 ` [dpdk-dev] [PATCH 8/8] net/ice: support TX " Wenzhuo Lu
2019-03-01  3:41 ` [dpdk-dev] [PATCH 0/8] Support vector instructions on ICE Zhang, Qi Z
2019-03-04  1:24   ` Lu, Wenzhuo
2019-03-04  6:53 ` [dpdk-dev] [PATCH v2 " Wenzhuo Lu
2019-03-04  6:53   ` [dpdk-dev] [PATCH v2 1/8] net/ice: fix Tx function setting Wenzhuo Lu
2019-03-04  6:53   ` [dpdk-dev] [PATCH v2 2/8] net/ice: add pointer for queue buffer release Wenzhuo Lu
2019-03-04  6:53   ` [dpdk-dev] [PATCH v2 3/8] net/ice: support vector SSE in RX Wenzhuo Lu
2019-03-11  3:26     ` Zhang, Qi Z
2019-03-15  1:50       ` Lu, Wenzhuo
2019-03-15  1:50         ` Lu, Wenzhuo
2019-03-04  6:53   ` [dpdk-dev] [PATCH v2 4/8] net/ice: support Rx scatter SSE vector Wenzhuo Lu
2019-03-04  6:53   ` [dpdk-dev] [PATCH v2 5/8] net/ice: support Tx " Wenzhuo Lu
2019-03-04  6:53   ` [dpdk-dev] [PATCH v2 6/8] net/ice: support Rx AVX2 vector Wenzhuo Lu
2019-03-04  6:53   ` [dpdk-dev] [PATCH v2 7/8] net/ice: support Rx scatter " Wenzhuo Lu
2019-03-04  6:53   ` [dpdk-dev] [PATCH v2 8/8] net/ice: support vector AVX2 in TX Wenzhuo Lu
2019-03-15  6:22 ` [dpdk-dev] [PATCH v3 0/8] Support vector instructions on ICE Wenzhuo Lu
2019-03-15  6:22   ` Wenzhuo Lu
2019-03-15  6:22   ` [dpdk-dev] [PATCH v3 1/8] net/ice: fix Tx function setting Wenzhuo Lu
2019-03-15  6:22     ` Wenzhuo Lu
2019-03-15 17:52     ` Ferruh Yigit
2019-03-15 17:52       ` Ferruh Yigit
2019-03-18  1:08       ` Lu, Wenzhuo
2019-03-18  1:08         ` Lu, Wenzhuo
2019-03-20 17:22         ` Ferruh Yigit
2019-03-20 17:22           ` Ferruh Yigit
2019-03-21  2:29           ` Lu, Wenzhuo
2019-03-21  2:29             ` Lu, Wenzhuo
2019-03-15  6:22   ` [dpdk-dev] [PATCH v3 2/8] net/ice: add pointer for queue buffer release Wenzhuo Lu
2019-03-15  6:22     ` Wenzhuo Lu
2019-03-15 17:52     ` Ferruh Yigit
2019-03-15 17:52       ` Ferruh Yigit
2019-03-18  1:15       ` Lu, Wenzhuo
2019-03-18  1:15         ` Lu, Wenzhuo
2019-03-15  6:22   ` [dpdk-dev] [PATCH v3 3/8] net/ice: support vector SSE in RX Wenzhuo Lu
2019-03-15  6:22     ` Wenzhuo Lu
2019-03-15 17:53     ` Ferruh Yigit
2019-03-15 17:53       ` Ferruh Yigit
2019-03-18  1:22       ` Lu, Wenzhuo
2019-03-18  1:22         ` Lu, Wenzhuo
2019-03-20 17:35         ` Ferruh Yigit [this message]
2019-03-20 17:35           ` Ferruh Yigit
2019-03-21  2:48           ` Lu, Wenzhuo
2019-03-21  2:48             ` Lu, Wenzhuo
2019-03-15  6:22   ` [dpdk-dev] [PATCH v3 4/8] net/ice: support Rx scatter SSE vector Wenzhuo Lu
2019-03-15  6:22     ` Wenzhuo Lu
2019-03-15  6:22   ` [dpdk-dev] [PATCH v3 5/8] net/ice: support Tx " Wenzhuo Lu
2019-03-15  6:22     ` Wenzhuo Lu
2019-03-15  6:22   ` [dpdk-dev] [PATCH v3 6/8] net/ice: support Rx AVX2 vector Wenzhuo Lu
2019-03-15  6:22     ` Wenzhuo Lu
2019-03-15 17:54     ` Ferruh Yigit
2019-03-15 17:54       ` Ferruh Yigit
2019-03-18  1:37       ` Lu, Wenzhuo
2019-03-18  1:37         ` Lu, Wenzhuo
2019-03-20 17:37         ` Ferruh Yigit
2019-03-20 17:37           ` Ferruh Yigit
2019-03-21  2:31           ` Lu, Wenzhuo
2019-03-21  2:31             ` Lu, Wenzhuo
2019-03-15  6:22   ` [dpdk-dev] [PATCH v3 7/8] net/ice: support Rx scatter " Wenzhuo Lu
2019-03-15  6:22     ` Wenzhuo Lu
2019-03-15  6:22   ` [dpdk-dev] [PATCH v3 8/8] net/ice: support vector AVX2 in TX Wenzhuo Lu
2019-03-15  6:22     ` Wenzhuo Lu
2019-03-15 17:54     ` Ferruh Yigit
2019-03-15 17:54       ` Ferruh Yigit
2019-03-18  1:38       ` Lu, Wenzhuo
2019-03-18  1:38         ` Lu, Wenzhuo
2019-03-15  8:08   ` [dpdk-dev] [PATCH v3 0/8] Support vector instructions on ICE Zhang, Qi Z
2019-03-15  8:08     ` Zhang, Qi Z
2019-03-21  6:26 ` [dpdk-dev] [PATCH v4 " Wenzhuo Lu
2019-03-21  6:26   ` Wenzhuo Lu
2019-03-21  6:26   ` [dpdk-dev] [PATCH v4 1/8] net/ice: fix Tx function setting Wenzhuo Lu
2019-03-21  6:26     ` Wenzhuo Lu
2019-03-22  8:46     ` Maxime Coquelin
2019-03-22  8:46       ` Maxime Coquelin
2019-03-22  9:01       ` Maxime Coquelin
2019-03-22  9:01         ` Maxime Coquelin
2019-03-21  6:26   ` [dpdk-dev] [PATCH v4 2/8] net/ice: add pointer for queue buffer release Wenzhuo Lu
2019-03-21  6:26     ` Wenzhuo Lu
2019-03-22  8:59     ` Maxime Coquelin
2019-03-22  8:59       ` Maxime Coquelin
2019-03-21  6:26   ` [dpdk-dev] [PATCH v4 3/8] net/ice: support vector SSE in RX Wenzhuo Lu
2019-03-21  6:26     ` Wenzhuo Lu
2019-03-21 19:02     ` Ferruh Yigit
2019-03-21 19:02       ` Ferruh Yigit
2019-03-22  1:46       ` Lu, Wenzhuo
2019-03-22  1:46         ` Lu, Wenzhuo
2019-03-21  6:26   ` [dpdk-dev] [PATCH v4 4/8] net/ice: support Rx scatter SSE vector Wenzhuo Lu
2019-03-21  6:26     ` Wenzhuo Lu
2019-03-21  6:26   ` [dpdk-dev] [PATCH v4 5/8] net/ice: support Tx " Wenzhuo Lu
2019-03-21  6:26     ` Wenzhuo Lu
2019-03-21  6:26   ` [dpdk-dev] [PATCH v4 6/8] net/ice: support Rx AVX2 vector Wenzhuo Lu
2019-03-21  6:26     ` Wenzhuo Lu
2019-03-21  6:26   ` [dpdk-dev] [PATCH v4 7/8] net/ice: support Rx scatter " Wenzhuo Lu
2019-03-21  6:26     ` Wenzhuo Lu
2019-03-21  6:26   ` [dpdk-dev] [PATCH v4 8/8] net/ice: support vector AVX2 in TX Wenzhuo Lu
2019-03-21  6:26     ` Wenzhuo Lu
2019-03-21 19:20     ` Ferruh Yigit
2019-03-21 19:20       ` Ferruh Yigit
2019-03-22  1:45       ` Lu, Wenzhuo
2019-03-22  1:45         ` Lu, Wenzhuo
2019-03-22  2:58 ` [dpdk-dev] [PATCH v5 0/8] Support vector instructions on ICE Wenzhuo Lu
2019-03-22  2:58   ` Wenzhuo Lu
2019-03-22  2:58   ` [dpdk-dev] [PATCH v5 1/8] net/ice: fix Tx function setting Wenzhuo Lu
2019-03-22  2:58     ` Wenzhuo Lu
2019-03-22  2:58   ` [dpdk-dev] [PATCH v5 2/8] net/ice: add pointer for queue buffer release Wenzhuo Lu
2019-03-22  2:58     ` Wenzhuo Lu
2019-03-22  2:58   ` [dpdk-dev] [PATCH v5 3/8] net/ice: support vector SSE in RX Wenzhuo Lu
2019-03-22  2:58     ` Wenzhuo Lu
2019-03-22  9:42     ` Maxime Coquelin
2019-03-22  9:42       ` Maxime Coquelin
2019-03-25  1:56       ` Lu, Wenzhuo
2019-03-25  1:56         ` Lu, Wenzhuo
2019-03-22  2:58   ` [dpdk-dev] [PATCH v5 4/8] net/ice: support Rx scatter SSE vector Wenzhuo Lu
2019-03-22  2:58     ` Wenzhuo Lu
2019-03-22  2:58   ` [dpdk-dev] [PATCH v5 5/8] net/ice: support Tx " Wenzhuo Lu
2019-03-22  2:58     ` Wenzhuo Lu
2019-03-22  9:58     ` Maxime Coquelin
2019-03-22  9:58       ` Maxime Coquelin
2019-03-25  2:02       ` Lu, Wenzhuo
2019-03-25  2:02         ` Lu, Wenzhuo
2019-03-22  2:58   ` [dpdk-dev] [PATCH v5 6/8] net/ice: support Rx AVX2 vector Wenzhuo Lu
2019-03-22  2:58     ` Wenzhuo Lu
2019-03-22 10:12     ` Maxime Coquelin
2019-03-22 10:12       ` Maxime Coquelin
2019-03-25  2:22       ` Lu, Wenzhuo
2019-03-25  2:22         ` Lu, Wenzhuo
2019-03-25  8:26         ` Maxime Coquelin
2019-03-25  8:26           ` Maxime Coquelin
2019-03-26  1:00           ` Lu, Wenzhuo
2019-03-26  1:00             ` Lu, Wenzhuo
2019-03-26  9:28             ` Maxime Coquelin
2019-03-26  9:28               ` Maxime Coquelin
2019-03-27  0:56               ` Lu, Wenzhuo
2019-03-27  0:56                 ` Lu, Wenzhuo
2019-03-27  7:50                 ` Maxime Coquelin
2019-03-27  7:50                   ` Maxime Coquelin
2019-03-28  1:56                   ` Lu, Wenzhuo
2019-03-28  1:56                     ` Lu, Wenzhuo
2019-03-22  2:58   ` [dpdk-dev] [PATCH v5 7/8] net/ice: support Rx scatter " Wenzhuo Lu
2019-03-22  2:58     ` Wenzhuo Lu
2019-03-22  2:58   ` [dpdk-dev] [PATCH v5 8/8] net/ice: support vector AVX2 in TX Wenzhuo Lu
2019-03-22  2:58     ` Wenzhuo Lu
2019-03-25  6:06 ` [dpdk-dev] [PATCH v6 0/8] Support vector instructions on ICE Wenzhuo Lu
2019-03-25  6:06   ` Wenzhuo Lu
2019-03-25  6:06   ` [dpdk-dev] [PATCH v6 1/8] net/ice: fix Tx function setting Wenzhuo Lu
2019-03-25  6:06     ` Wenzhuo Lu
2019-03-25  6:06   ` [dpdk-dev] [PATCH v6 2/8] net/ice: add pointer for queue buffer release Wenzhuo Lu
2019-03-25  6:06     ` Wenzhuo Lu
2019-03-25 13:23     ` Maxime Coquelin
2019-03-25 13:23       ` Maxime Coquelin
2019-03-26  1:15       ` Lu, Wenzhuo
2019-03-26  1:15         ` Lu, Wenzhuo
2019-03-25  6:06   ` [dpdk-dev] [PATCH v6 3/8] net/ice: support vector SSE in RX Wenzhuo Lu
2019-03-25  6:06     ` Wenzhuo Lu
2019-03-25  6:06   ` [dpdk-dev] [PATCH v6 4/8] net/ice: support Rx scatter SSE vector Wenzhuo Lu
2019-03-25  6:06     ` Wenzhuo Lu
2019-03-25  6:06   ` [dpdk-dev] [PATCH v6 5/8] net/ice: support Tx " Wenzhuo Lu
2019-03-25  6:06     ` Wenzhuo Lu
2019-03-25  6:06   ` [dpdk-dev] [PATCH v6 6/8] net/ice: support Rx AVX2 vector Wenzhuo Lu
2019-03-25  6:06     ` Wenzhuo Lu
2019-03-25  6:06   ` [dpdk-dev] [PATCH v6 7/8] net/ice: support Rx scatter " Wenzhuo Lu
2019-03-25  6:06     ` Wenzhuo Lu
2019-03-25  6:06   ` [dpdk-dev] [PATCH v6 8/8] net/ice: support vector AVX2 in TX Wenzhuo Lu
2019-03-25  6:06     ` Wenzhuo Lu
2019-03-25  7:56   ` [dpdk-dev] [PATCH v6 0/8] Support vector instructions on ICE Zhang, Qi Z
2019-03-25  7:56     ` Zhang, Qi Z
2019-03-26  6:16 ` [dpdk-dev] [PATCH v7 " Wenzhuo Lu
2019-03-26  6:16   ` Wenzhuo Lu
2019-03-26  6:16   ` [dpdk-dev] [PATCH v7 1/8] net/ice: fix Tx function setting Wenzhuo Lu
2019-03-26  6:16     ` Wenzhuo Lu
2019-03-26  6:16   ` [dpdk-dev] [PATCH v7 2/8] net/ice: add pointer for queue buffer release Wenzhuo Lu
2019-03-26  6:16     ` Wenzhuo Lu
2019-03-26  6:16   ` [dpdk-dev] [PATCH v7 3/8] net/ice: support vector SSE in RX Wenzhuo Lu
2019-03-26  6:16     ` Wenzhuo Lu
2019-03-26  6:16   ` [dpdk-dev] [PATCH v7 4/8] net/ice: support Rx scatter SSE vector Wenzhuo Lu
2019-03-26  6:16     ` Wenzhuo Lu
2019-03-26  6:16   ` [dpdk-dev] [PATCH v7 5/8] net/ice: support Tx " Wenzhuo Lu
2019-03-26  6:16     ` Wenzhuo Lu
2019-03-26  6:16   ` [dpdk-dev] [PATCH v7 6/8] net/ice: support Rx AVX2 vector Wenzhuo Lu
2019-03-26  6:16     ` Wenzhuo Lu
2019-03-26  6:16   ` [dpdk-dev] [PATCH v7 7/8] net/ice: support Rx scatter " Wenzhuo Lu
2019-03-26  6:16     ` Wenzhuo Lu
2019-03-26  6:16   ` [dpdk-dev] [PATCH v7 8/8] net/ice: support vector AVX2 in TX Wenzhuo Lu
2019-03-26  6:16     ` Wenzhuo Lu
2019-03-26  9:50   ` [dpdk-dev] [PATCH v7 0/8] Support vector instructions on ICE Ferruh Yigit
2019-03-26  9:50     ` Ferruh Yigit
2019-03-31 15:52     ` Thomas Monjalon
2019-03-31 15:52       ` Thomas Monjalon
2019-04-01  5:46       ` Lu, Wenzhuo
2019-04-01  5:46         ` Lu, Wenzhuo
2019-04-01 12:51       ` Ferruh Yigit
2019-04-01 12:51         ` Ferruh Yigit
2019-04-01 13:27         ` Thomas Monjalon
2019-04-01 13:27           ` Thomas Monjalon
2019-04-01 15:12           ` Ferruh Yigit
2019-04-01 15:12             ` Ferruh Yigit
2019-04-01 15:14             ` Thomas Monjalon
2019-04-01 15:14               ` Thomas Monjalon
2019-04-02  1:01               ` Lu, Wenzhuo
2019-04-02  1:01                 ` Lu, Wenzhuo
2019-04-02  7:12                 ` Thomas Monjalon
2019-04-02  7:12                   ` Thomas Monjalon
2019-04-01 14:39         ` Bruce Richardson
2019-04-01 14:39           ` Bruce Richardson
2019-04-01 14:56           ` Ferruh Yigit
2019-04-01 14:56             ` Ferruh Yigit
2019-04-01 15:09             ` Ferruh Yigit
2019-04-01 15:09               ` Ferruh Yigit
2019-04-01 15:13             ` Thomas Monjalon
2019-04-01 15:13               ` Thomas Monjalon

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