From: "Nélio Laranjeiro" <nelio.laranjeiro@6wind.com>
To: "Xueming(Steven) Li" <xuemingl@mellanox.com>
Cc: Adrien Mazarguil <adrien.mazarguil@6wind.com>,
Shahaf Shuler <shahafs@mellanox.com>,
"dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH] net/mlx5: add supported hash function check
Date: Mon, 26 Mar 2018 13:39:41 +0200 [thread overview]
Message-ID: <20180326113941.lhlvg4pe2aiccbld@laranjeiro-vm.dev.6wind.com> (raw)
In-Reply-To: <VI1PR05MB1678282C59F1A02ECA8E5FAEACA90@VI1PR05MB1678.eurprd05.prod.outlook.com>
On Thu, Mar 22, 2018 at 10:42:44AM +0000, Xueming(Steven) Li wrote:
> Just remind, denying unsupported hash function in rte_eth_dev_configure() might
> impact some user app using PMD that simply ignoring them silently.
If the default behavior from other devices is to use only possible
values, this device should to the same instead of refusing it.
> Testpmd command "port config <port> rss all" should be updated as well
> to 'all' supported values from rte_eth_dev_info, I'll include this change in
> next version.
>
> > -----Original Message-----
> > From: Nélio Laranjeiro [mailto:nelio.laranjeiro@6wind.com]
> > Sent: Monday, March 19, 2018 4:30 PM
> > To: Xueming(Steven) Li <xuemingl@mellanox.com>
> > Cc: Adrien Mazarguil <adrien.mazarguil@6wind.com>; Shahaf Shuler
> > <shahafs@mellanox.com>; dev@dpdk.org
> > Subject: Re: [PATCH] net/mlx5: add supported hash function check
> >
> > On Sun, Mar 18, 2018 at 03:37:20PM +0800, Xueming Li wrote:
> > > Add supported RSS hash function check in device configuration to have
> > > better error verbosity for application developers.
> > >
> > > Signed-off-by: Xueming Li <xuemingl@mellanox.com>
> > > ---
> > > drivers/net/mlx5/mlx5_ethdev.c | 8 ++++++++
> > > 1 file changed, 8 insertions(+)
> > >
> > > diff --git a/drivers/net/mlx5/mlx5_ethdev.c
> > > b/drivers/net/mlx5/mlx5_ethdev.c index b73cb53..175a1ff 100644
> > > --- a/drivers/net/mlx5/mlx5_ethdev.c
> > > +++ b/drivers/net/mlx5/mlx5_ethdev.c
> > > @@ -346,6 +346,14 @@ struct ethtool_link_settings {
> > > rx_offloads, supp_rx_offloads);
> > > return ENOTSUP;
> > > }
> > > + if (dev->data->dev_conf.rx_adv_conf.rss_conf.rss_hf &
> > > + MLX5_RSS_HF_MASK) {
> > > + ERROR("Some RSS hash function not supported "
> > > + "requested 0x%" PRIx64 " supported 0x%" PRIx64,
> > > + dev->data->dev_conf.rx_adv_conf.rss_conf.rss_hf,
> > > + (uint64_t)(~MLX5_RSS_HF_MASK));
> > > + return ENOTSUP;
> > > + }
> > > if (use_app_rss_key &&
> > > (dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key_len !=
> > > rss_hash_default_key_len)) {
> > > --
> > > 1.8.3.1
> > >
> >
> > I would answer than an application should not try to configure something
> > not advertise by the device.
> > This information is present in struct rte_eth_dev_info returned by
> > mlx5_dev_infos_get() and thus the devops of the device.
> >
> > Seems rte_eth_dev_configure() should be fixed to avoid configuring wrong
> > values.
> >
> > Regards,
> >
> > --
> > Nélio Laranjeiro
> > 6WIND
--
Nélio Laranjeiro
6WIND
next prev parent reply other threads:[~2018-03-26 11:41 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-18 7:37 Xueming Li
2018-03-19 8:29 ` Nélio Laranjeiro
2018-03-22 10:42 ` Xueming(Steven) Li
2018-03-26 11:39 ` Nélio Laranjeiro [this message]
2018-04-02 12:41 ` Xueming(Steven) Li
2018-04-04 7:35 ` Nélio Laranjeiro
2018-04-09 12:10 ` [dpdk-dev] [PATCH v1 1/2] ethdev: " Xueming Li
2018-04-16 22:56 ` Thomas Monjalon
2018-04-17 14:24 ` [dpdk-dev] [PATCH v2 " Xueming Li
2018-04-17 22:00 ` Thomas Monjalon
2018-04-18 11:55 ` Xueming(Steven) Li
2018-04-18 12:15 ` Thomas Monjalon
2018-04-17 14:24 ` [dpdk-dev] [PATCH v2 2/2] app/testpmd: only config supported RSS hash types Xueming Li
2018-04-18 8:11 ` [dpdk-dev] [PATCH v3 1/2] ethdev: add supported hash function check Xueming Li
2018-04-18 8:11 ` [dpdk-dev] [PATCH v3 2/2] app/testpmd: only config supported RSS hash types Xueming Li
2018-04-18 11:06 ` [dpdk-dev] [PATCH v3 1/2] ethdev: add supported hash function check Xueming Li
2018-04-18 11:06 ` [dpdk-dev] [PATCH v3 2/2] app/testpmd: only config supported RSS hash types Xueming Li
2018-04-18 13:25 ` Adrien Mazarguil
2018-04-18 13:54 ` Xueming(Steven) Li
2018-04-18 14:16 ` Adrien Mazarguil
2018-04-18 14:26 ` Xueming(Steven) Li
2018-04-18 14:47 ` Adrien Mazarguil
2018-04-18 14:10 ` Xueming(Steven) Li
2018-04-18 14:30 ` Adrien Mazarguil
2018-04-19 15:50 ` Xueming(Steven) Li
2018-04-19 15:48 ` [dpdk-dev] [PATCH v4 1/2] ethdev: add supported hash function check Xueming Li
2018-04-20 8:10 ` Adrien Mazarguil
2018-04-19 15:48 ` [dpdk-dev] [PATCH v4 2/2] app/testpmd: new parameter for port config all rss command Xueming Li
2018-04-20 8:10 ` Adrien Mazarguil
2018-04-20 13:06 ` [dpdk-dev] [PATCH v5 1/2] ethdev: introduce generic IP/UDP tunnel checksum and TSO Xueming Li
2018-04-20 13:48 ` Ferruh Yigit
2018-04-20 14:23 ` Ferruh Yigit
2018-04-20 14:23 ` Xueming(Steven) Li
2018-04-20 13:06 ` [dpdk-dev] [PATCH v5 2/2] app/testpmd: testpmd support Tx generic tunnel offloads Xueming Li
2018-04-20 14:29 ` Xueming(Steven) Li
2018-04-20 14:30 ` [dpdk-dev] [PATCH v5 1/2] ethdev: add supported hash function check Xueming Li
2018-04-20 14:35 ` Ferruh Yigit
2018-04-20 14:44 ` Xueming(Steven) Li
2018-04-23 15:20 ` Thomas Monjalon
2018-04-23 16:07 ` Ferruh Yigit
2018-04-23 16:06 ` Ferruh Yigit
2018-04-23 18:14 ` Thomas Monjalon
2018-05-01 11:04 ` Ferruh Yigit
2018-05-01 14:04 ` Thomas Monjalon
2018-04-20 14:30 ` [dpdk-dev] [PATCH v5 2/2] app/testpmd: new parameter for port config all rss command Xueming Li
2018-04-09 12:10 ` [dpdk-dev] [PATCH v1 2/2] app/testpmd: config all supported RSS functions Xueming Li
2018-04-16 22:53 ` Thomas Monjalon
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