From: "Zhang, Qi Z" <qi.z.zhang@intel.com>
To: "Ergin, Mesut A" <mesut.a.ergin@intel.com>,
"Xing, Beilei" <beilei.xing@intel.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH 3/3] net/i40e: fix inadvertent override of vector RX allowance
Date: Wed, 22 May 2019 12:42:03 +0000 [thread overview]
Message-ID: <039ED4275CED7440929022BC67E7061153385EC0@SHSMSX103.ccr.corp.intel.com> (raw)
In-Reply-To: <1557980885-183777-4-git-send-email-mesut.a.ergin@intel.com>
Hi Mesut:
> -----Original Message-----
> From: Ergin, Mesut A
> Sent: Thursday, May 16, 2019 12:28 PM
> To: Xing, Beilei <beilei.xing@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>
> Cc: dev@dpdk.org; Ergin, Mesut A <mesut.a.ergin@intel.com>
> Subject: [PATCH 3/3] net/i40e: fix inadvertent override of vector RX allowance
>
> When i40e_rx_vec_dev_conf_condition_check_default() determines whether
> vector receive functions would be allowed during initialization phase, it should
> honor previously recorded disallowance during configuration phase, and not
> override simply because it is for the first queue.
>
> Signed-off-by: Mesut Ali Ergin <mesut.a.ergin@intel.com>
> ---
> drivers/net/i40e/i40e_rxtx_vec_common.h | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/drivers/net/i40e/i40e_rxtx_vec_common.h
> b/drivers/net/i40e/i40e_rxtx_vec_common.h
> index 0e6ffa0..f30cab4 100644
> --- a/drivers/net/i40e/i40e_rxtx_vec_common.h
> +++ b/drivers/net/i40e/i40e_rxtx_vec_common.h
> @@ -212,6 +212,10 @@
> i40e_rx_vec_dev_conf_condition_check_default(struct rte_eth_dev *dev)
> if (rxmode->offloads & DEV_RX_OFFLOAD_VLAN_EXTEND)
> return -1;
>
> + /* Should not override if vector was already disallowed */
It is possible a device be reconfigured between dev_stop/dev_start, vector mode may fit for the new configure, so the old rx_vec_allowd should be ignored,
Regards
Qi
> + if (!ad->rx_vec_allowed)
> + return -1;
> +
> /**
> * Vector mode is allowed only when number of Rx queue
> * descriptor is power of 2.
> --
> 2.7.4
next prev parent reply other threads:[~2019-05-22 12:42 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-16 4:28 [dpdk-dev] [PATCH 0/3] net/i40e: improve rte_flow offload with MARK + RSS Mesut Ali Ergin
2019-05-16 4:28 ` Mesut Ali Ergin
2019-05-16 4:28 ` [dpdk-dev] [PATCH 1/3] net/i40e: add support for MARK + RSS action in rte_flow Mesut Ali Ergin
2019-05-16 4:28 ` Mesut Ali Ergin
2019-05-22 12:30 ` Zhang, Qi Z
2019-05-16 4:28 ` [dpdk-dev] [PATCH 2/3] net/i40e: add runtime option to disable vector rx Mesut Ali Ergin
2019-05-16 4:28 ` Mesut Ali Ergin
2019-05-16 8:17 ` Maxime Coquelin
2019-05-16 8:17 ` Maxime Coquelin
2019-05-16 21:26 ` Ergin, Mesut A
2019-05-20 8:29 ` Ananyev, Konstantin
2019-05-20 17:53 ` Ergin, Mesut A
2019-05-20 23:11 ` Ananyev, Konstantin
2019-05-21 16:33 ` Ergin, Mesut A
2019-05-21 17:20 ` Ananyev, Konstantin
2019-05-21 20:55 ` Ergin, Mesut A
2019-05-22 11:01 ` Ananyev, Konstantin
2019-05-22 14:05 ` Thomas Monjalon
2019-05-22 14:32 ` Zhang, Qi Z
2019-05-23 13:10 ` Jerin Jacob Kollanukkaran
2019-05-23 17:54 ` Ergin, Mesut A
2019-05-16 4:28 ` [dpdk-dev] [PATCH 3/3] net/i40e: fix inadvertent override of vector RX allowance Mesut Ali Ergin
2019-05-16 4:28 ` Mesut Ali Ergin
2019-05-16 8:17 ` Maxime Coquelin
2019-05-16 8:17 ` Maxime Coquelin
2019-05-16 20:57 ` Ergin, Mesut A
2019-05-22 12:42 ` Zhang, Qi Z [this message]
2019-05-23 18:25 ` Ergin, Mesut A
2019-05-24 2:39 ` Zhang, Qi Z
2019-05-24 18:08 ` Ergin, Mesut A
2019-05-25 11:29 ` Zhang, Qi Z
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=039ED4275CED7440929022BC67E7061153385EC0@SHSMSX103.ccr.corp.intel.com \
--to=qi.z.zhang@intel.com \
--cc=beilei.xing@intel.com \
--cc=dev@dpdk.org \
--cc=mesut.a.ergin@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).