-----Original Message-----
From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Pablo de Lara
Sent: Thursday, March 24, 2016 3:18 PM
To: dev@dpdk.org
Cc: Lu, Wenzhuo <redacted>; De Lara Guarch, Pablo
[off-list ref]
Subject: [dpdk-dev] [PATCH v3] ixgbe: add check for tx queue number

From: Wenzhuo Lu <redacted>

IXGBE supports 128 TX queues. However, the full 128 queues
are only available in VT and DCB mode.
In normal default "none" mode (VT/DCB off) the maximum number
of available queues is only 64
(except for 82598EB, which is 32 for all modes).

IXGBE doesn't check the mode when reporting the available
number of queues. If a queue larger than 64 is used in default mode,
the TX packets will be dropped silently.

This change adds a check to forbid using a queue number larger than 64
during device configuration (in default mode), so that the problem is
reported as early as possible.
It also changes the order of where the dev_conf parameters are copied
into the dev structure so that the correct maximum number of queues
is reported for the correct mode.

Signed-off-by: Wenzhuo Lu <redacted>
Signed-off-by: Pablo de Lara <redacted>

Tested-by: Antonio Fischetti <redacted>