From: "Liu, Jijiang" <jijiang.liu@intel.com>
To: Padam Jeet Singh <padam.singh@inventum.net>
Cc: "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] Wrong TCP Checkum computed by hardware
Date: Wed, 28 Oct 2015 08:01:30 +0000 [thread overview]
Message-ID: <1ED644BD7E0A5F4091CF203DAFB8E4CC22BC432E@SHSMSX101.ccr.corp.intel.com> (raw)
In-Reply-To: <546F571B-8603-4D0E-95B3-6CE5BAD3EE02@inventum.net>
> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Padam Jeet Singh
> Sent: Wednesday, October 28, 2015 3:20 PM
> To: Matthew Hall
> Cc: dev@dpdk.org
> Subject: Re: [dpdk-dev] Wrong TCP Checkum computed by hardware
>
Did you set the txq_flags?
If the flag is not set, the default value is IXGBE_SIMPLE_FLAGS, and the any TX offloads do not work.
See the following codes in ixgbe_rxtx.c file
/* Use a simple Tx queue (no offloads, no multi segs) if possible */
if (((txq->txq_flags & IXGBE_SIMPLE_FLAGS) == IXGBE_SIMPLE_FLAGS)
&& (txq->tx_rs_thresh >= RTE_PMD_IXGBE_TX_MAX_BURST)) {
PMD_INIT_LOG(INFO, "Using simple tx code path");
...
dev->tx_pkt_burst = ixgbe_xmit_pkts_simple;
} else {
...
dev->tx_pkt_burst = ixgbe_xmit_pkts;
}
--Jijiang Liu
next prev parent reply other threads:[~2015-10-28 8:01 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-28 6:50 Padam Jeet Singh
2015-10-28 6:57 ` Matthew Hall
2015-10-28 7:19 ` Padam Jeet Singh
2015-10-28 8:01 ` Liu, Jijiang [this message]
2015-10-28 8:12 ` Padam Jeet Singh
2015-10-28 8:16 ` Liu, Jijiang
2015-10-28 8:30 ` Padam Jeet Singh
2015-10-28 8:34 ` Liu, Jijiang
2015-10-28 11:02 ` Padam Jeet Singh
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