From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Zhang, Roy Fan" Subject: Re: [PATCH] crypto/scheduler: add multicore scheduling mode Date: Mon, 5 Jun 2017 14:19:29 +0800 Message-ID: <5934F7F1.8040408@intel.com> References: <1496002118-64735-1-git-send-email-pablo.de.lara.guarch@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Cc: dev@dpdk.org, Kirill Rybalchenko To: Pablo de Lara , Kirill , declan.doherty@intel.com Return-path: Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by dpdk.org (Postfix) with ESMTP id DCEAC7CDA for ; Mon, 5 Jun 2017 08:19:34 +0200 (CEST) In-Reply-To: <1496002118-64735-1-git-send-email-pablo.de.lara.guarch@intel.com> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Hi Kirill, Great job! It would be handy if you can enable the option of run-time adding and deleting the number of cores, or at least showing the lcore list that is used for this mode of scheduler? Some more comments inline. On 29/05/2017 04:08, Pablo de Lara wrote: > From: Kirill Rybalchenko > > Multi-core scheduling mode is a mode where scheduler distributes > crypto operations in a round-robin base, between several core > assigned as workers. > > Signed-off-by: Kirill Rybalchenko > --- > app/test-crypto-perf/cperf_test_throughput.c | 2 + > drivers/crypto/scheduler/Makefile | 1 + > drivers/crypto/scheduler/rte_cryptodev_scheduler.c | 7 + > drivers/crypto/scheduler/rte_cryptodev_scheduler.h | 6 + > drivers/crypto/scheduler/scheduler_multicore.c | 405 +++++++++++++++++++++ > drivers/crypto/scheduler/scheduler_pmd.c | 73 +++- > drivers/crypto/scheduler/scheduler_pmd_private.h | 4 + > lib/librte_cryptodev/rte_cryptodev.c | 2 +- > 8 files changed, 497 insertions(+), 3 deletions(-) > create mode 100644 drivers/crypto/scheduler/scheduler_multicore.c ... > +#define MC_SCHED_RING_SIZE 1024 > +#define MC_SCHED_ENQ_RING_NAME "MCS_ENQR_" > +#define MC_SCHED_DEQ_RING_NAME "MCS_DEQR_" > + The better name for ENQ/DEQ_RING_NAME might be "MC_SCHED_ENQ/DEQ_RING_NAME_PREFIX" > +#define MC_SCHED_BUFFER_SIZE 32 > +#define MC_SCHED_BUFFER_MASK (MC_SCHED_BUFFER_SIZE - 1) > + > +/** multi-core scheduler context */ > +struct mc_scheduler_ctx { > + unsigned int num_workers; /**< Number of workers polling */ Please uses uint32_t instead of unsigned int > + unsigned int stop_signal; > + > + struct rte_ring *sched_enq_ring[MAX_NB_WORKER_CORES]; > + struct rte_ring *sched_deq_ring[MAX_NB_WORKER_CORES]; > +}; > + ... > + sessions[i] = enq_ops[i]->sym->session; > + sessions[i + 1] = enq_ops[i + 1]->sym->session; > + sessions[i + 2] = enq_ops[i + 2]->sym->session; > + sessions[i + 3] = enq_ops[i + 3]->sym->session; > + Have a look at pkt_size_scheduler, it is possible to remove this session backup and recovery through the run-time queue size check. > + enq_ops[i]->sym->session = sess0->sessions[worker_idx]; > + enq_ops[i + 1]->sym->session = sess1->sessions[worker_idx]; > + enq_ops[i + 2]->sym->session = sess2->sessions[worker_idx]; > + enq_ops[i + 3]->sym->session = sess3->sessions[worker_idx]; > + > + rte_prefetch0(enq_ops[i + 4]->sym->session); > + rte_prefetch0(enq_ops[i + 5]->sym->session); > + rte_prefetch0(enq_ops[i + 6]->sym->session); > + rte_prefetch0(enq_ops[i + 7]->sym->session); > + } > +#endif > > +#define MAX_NB_WORKER_CORES 64 I think MAX_NB_WORKER_CORES should goes to rte_cryptodev_scheduler with a more formal name like "RTE_CRYPTODEV_SCHEDULER_MAX_NB_WORKER_CORES" or better name. > + > struct scheduler_slave { > uint8_t dev_id; > uint16_t qp_id; > @@ -86,6 +88,8 @@ struct scheduler_ctx { > > char name[RTE_CRYPTODEV_SCHEDULER_NAME_MAX_LEN]; > char description[RTE_CRYPTODEV_SCHEDULER_DESC_MAX_LEN]; > + uint16_t wc_pool[MAX_NB_WORKER_CORES]; > + uint16_t nb_wc; > > char *init_slave_names[RTE_CRYPTODEV_SCHEDULER_MAX_NB_SLAVES]; > int nb_init_slaves; > diff --git a/lib/librte_cryptodev/rte_cryptodev.c b/lib/librte_cryptodev/rte_cryptodev.c > index b65cd9c..5aa2b8b 100644 > --- a/lib/librte_cryptodev/rte_cryptodev.c > +++ b/lib/librte_cryptodev/rte_cryptodev.c > @@ -1032,8 +1032,8 @@ rte_cryptodev_stop(uint8_t dev_id) > return; > } > > - dev->data->dev_started = 0; > (*dev->dev_ops->dev_stop)(dev); > + dev->data->dev_started = 0; > } > > int