From: Jakub Kicinski <moorray3@wp.pl>
To: Jacob Keller <jacob.e.keller@intel.com>
Cc: netdev@vger.kernel.org, davem@davemloft.net
Subject: Re: [PATCH 3/4] ethtool: can't set combined and tx/rx channel counts at the same time
Date: Mon, 8 Feb 2016 20:52:47 +0000 [thread overview]
Message-ID: <20160208205247.74aaaee8@jkicinski-Precision-T1700> (raw)
In-Reply-To: <1454961965-15116-4-git-send-email-jacob.e.keller@intel.com>
On Mon, 8 Feb 2016 12:06:04 -0800, Jacob Keller wrote:
> + /* can't set combined and separate channels at the same time */
> + if ((channels.combined_count &&
> + (channels.rx_count || channels.tx_count))
> + return -EINVAL;
> +
> /* ensure the new Rx count fits within the configured Rx flow
> * indirection table settings */
> if (netif_is_rxfh_configured(dev) &&
My understanding is that unsymmetrical rx/tx queue configuration with
combined IRQ vectors should be expressed as:
combined = min(tx, rx);
num_tx = tx - combined;
num_rx = rx - combined;
Please see:
https://www.mail-archive.com/netdev@vger.kernel.org/msg93977.html
Patches which I cooked up for this are rotting in my queue blocked by
other things, unfortunately.
next prev parent reply other threads:[~2016-02-08 20:52 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-08 20:06 [PATCH 0/3] ethtool: correct {GS}CHANNELS and {GS}RXFH conflict Jacob Keller
2016-02-08 20:06 ` [PATCH 1/4] ethtool: correctly ensure {GS}CHANNELS doesn't conflict with GS{RXFH} Jacob Keller
2016-02-08 20:24 ` kbuild test robot
2016-02-08 20:31 ` kbuild test robot
2016-02-08 20:47 ` Jakub Kicinski
2016-02-08 20:06 ` [PATCH 2/4] ethtool: ensure channel counts are within bounds during SCHANNELS Jacob Keller
2016-02-08 20:29 ` kbuild test robot
2016-02-08 20:06 ` [PATCH 3/4] ethtool: can't set combined and tx/rx channel counts at the same time Jacob Keller
2016-02-08 20:25 ` kbuild test robot
2016-02-08 20:30 ` kbuild test robot
2016-02-08 20:52 ` Jakub Kicinski [this message]
2016-02-08 22:00 ` Keller, Jacob E
2016-02-08 22:15 ` Keller, Jacob E
2016-02-08 20:06 ` [PATCH 4/4] fm10k: don't reinitialize RSS flow table when RXFH configured Jacob Keller
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