DPDK patches and discussions
 help / color / mirror / Atom feed
From: Shahaf Shuler <shahafs@mellanox.com>
To: Ferruh Yigit <ferruh.yigit@intel.com>,
	Wei Zhao <wei.zhao1@intel.com>, "dev@dpdk.org" <dev@dpdk.org>
Cc: "stable@dpdk.org" <stable@dpdk.org>,
	Wenzhuo Lu <wenzhuo.lu@intel.com>,
	Andrew Rybchenko <arybchenko@solarflare.com>
Subject: Re: [dpdk-dev] [PATCH] net/ixgbe: remove hardcoded CRC STRIP config from ixgbe
Date: Sun, 12 Aug 2018 06:28:55 +0000	[thread overview]
Message-ID: <DB7PR05MB4426AE0B0AB7E8604A199B45C33A0@DB7PR05MB4426.eurprd05.prod.outlook.com> (raw)
In-Reply-To: <d3ab4c99-4573-d216-657b-555043713401@intel.com>

Thursday, August 9, 2018 11:32 AM, Ferruh Yigit:
> Subject: Re: [PATCH] net/ixgbe: remove hardcoded CRC STRIP config from
> ixgbe
> 
> On 7/24/2018 3:36 AM, Wei Zhao wrote:
> > There is CRC related ifdefs for ixgbe:
> > CONFIG_RTE_LIBRTE_IXGBE_PF_DISABLE_STRIP_CRC=n
> > It is used in VF drivers ixgbevf_dev_configure() functions.
> > VF cannot change the CRC strip behavior and based on what PF
> > configured it needs to response proper to user
> > ixgbevf_dev_configure() request. Right now what PF set is defined by
> > above config options but this method is too static.
> >
> > Signed-off-by: Wei Zhao <wei.zhao1@intel.com>
> > Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
> 
> <...>
> > @@ -334,6 +334,7 @@ struct rte_eth_rxmode {
> >  	 * structure are allowed to be set.
> >  	 */
> >  	uint64_t offloads;
> > +	uint64_t offloads_disable;
> 
> Do we need a disable flag in ethdev, an offload not enabled is disabled by
> default isn't it. This conflicts with offloads flag and makes is confusing.

+1.

**all** the offloads are disabled by default. 

> 
> For igb/e1000 VF case, VF driver can't change what PF set and VF driver can't
> learn the PF setting dynamically, so this information needs to be passed to VF
> driver by application/user.
> Currently this information passed by compile time config option, my
> suggestion was using devargs.
> 
> In your implementation testpmd parameter added to get this information
> and pass to driver, but this means all applications needs to do this, instead
> adding this support to driver looks better to me.

  reply	other threads:[~2018-08-12  6:28 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-24  2:36 Wei Zhao
2018-08-02  2:27 ` Zhang, Qi Z
2018-08-09  1:51   ` Zhao1, Wei
2018-08-09  8:31 ` Ferruh Yigit
2018-08-12  6:28   ` Shahaf Shuler [this message]
2018-08-12  7:52     ` Andrew Rybchenko
2018-08-12  8:46       ` Shahaf Shuler
2018-08-13 15:10         ` Ferruh Yigit

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=DB7PR05MB4426AE0B0AB7E8604A199B45C33A0@DB7PR05MB4426.eurprd05.prod.outlook.com \
    --to=shahafs@mellanox.com \
    --cc=arybchenko@solarflare.com \
    --cc=dev@dpdk.org \
    --cc=ferruh.yigit@intel.com \
    --cc=stable@dpdk.org \
    --cc=wei.zhao1@intel.com \
    --cc=wenzhuo.lu@intel.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).