From: David Miller <davem@davemloft.net>
To: felix.manlunas@cavium.com
Cc: netdev@vger.kernel.org, raghu.vatsavayi@cavium.com,
derek.chickles@cavium.com, satananda.burla@cavium.com,
intiyaz.basha@cavium.com
Subject: Re: [PATCH net-next] liquidio: Prioritize control messages
Date: Thu, 29 Mar 2018 14:14:21 -0400 (EDT) [thread overview]
Message-ID: <20180329.141421.203457478188915829.davem@davemloft.net> (raw)
In-Reply-To: <20180328022518.GA9011@felix-thinkpad.cavium.com>
From: Felix Manlunas <felix.manlunas@cavium.com>
Date: Tue, 27 Mar 2018 19:25:18 -0700
> From: Intiyaz Basha <intiyaz.basha@cavium.com>
>
> During heavy tx traffic, control messages (sent by liquidio driver to NIC
> firmware) sometimes do not get processed in a timely manner. Reason is:
> the low-level metadata of control messages and that of egress network
> packets indicate that they have the same priority.
>
> Fix it by setting a higher priority for control messages through the new
> ctrl_qpg field in the oct_txpciq struct. It is the NIC firmware that does
> the actual setting of priority by writing to the new ctrl_qpg field; the
> host driver treats that value as opaque and just assigns it to pki_ih3->qpg
>
> Signed-off-by: Intiyaz Basha <intiyaz.basha@cavium.com>
> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Applied.
prev parent reply other threads:[~2018-03-29 18:14 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-28 2:25 [PATCH net-next] liquidio: Prioritize control messages Felix Manlunas
2018-03-29 18:14 ` David Miller [this message]
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