From: Meng Wang <meng.w.wang@oracle.com>
To: users@dpdk.org
Subject: [dpdk-users] [Crypto-QAT] queue pairs per QAT device
Date: Mon, 13 May 2019 14:47:22 -0400 [thread overview]
Message-ID: <100a5208-2fde-ab32-c8e1-22964acce5fe@oracle.com> (raw)
Hi,
I'm trying to understand how queue pairs get setup on QAT. I have
created one VF for each lcore. From qat code it seems support up to 2
qps per device/VF, one for each direction. Then I found that each queue
pair has its own qat_queue rx/tx.
/* Maximum number of qps on a device for any service type */
#define ADF_MAX_QPS_ON_ANY_SERVICE 2
#define ADF_RING_DIR_TX 0
#define ADF_RING_DIR_RX 1
How does the direction of qp correlate to direction of qat_queue? Is one
queue pair sufficient to transmit packet between QAT and application per
core?
Thanks,
Meng
next reply other threads:[~2019-05-13 18:47 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-13 18:47 Meng Wang [this message]
2019-05-14 17:04 ` Trahe, Fiona
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