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Ip=[192.88.168.50]; Helo=[tx30smr01.am.freescale.net] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN3PR03MB2354 Subject: [dpdk-dev] [PATCH v2 17/18] net/dpaa: integrate the support of push mode in PMD X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 09 Jan 2018 13:24:55 -0000 Signed-off-by: Sunil Kumar Kori Signed-off-by: Hemant Agrawal Signed-off-by: Nipun Gupta --- doc/guides/nics/dpaa.rst | 11 ++++++++ drivers/net/dpaa/dpaa_ethdev.c | 64 +++++++++++++++++++++++++++++++++++++----- drivers/net/dpaa/dpaa_ethdev.h | 2 +- drivers/net/dpaa/dpaa_rxtx.c | 34 ++++++++++++++++++++++ drivers/net/dpaa/dpaa_rxtx.h | 5 ++++ 5 files changed, 108 insertions(+), 8 deletions(-) diff --git a/doc/guides/nics/dpaa.rst b/doc/guides/nics/dpaa.rst index a62f128..0a13996 100644 --- a/doc/guides/nics/dpaa.rst +++ b/doc/guides/nics/dpaa.rst @@ -290,6 +290,17 @@ state during application initialization: In case the application is configured to use lesser number of queues than configured above, it might result in packet loss (because of distribution). +- ``DPAA_PUSH_QUEUES_NUMBER`` (default 4) + + This defines the number of High performance queues to be used for ethdev Rx. + These queues use one private HW portal per queue configured, so they are + limited in the system. The first configured ethdev queues will be + automatically be assigned from the these high perf PUSH queues. Any queue + configuration beyond that will be standard Rx queues. The application can + choose to change their number if HW portals are limited. + The valid values are from '0' to '4'. The valuse shall be set to '0' if the + application want to use eventdev with DPAA device. + Driver compilation and testing ------------------------------ diff --git a/drivers/net/dpaa/dpaa_ethdev.c b/drivers/net/dpaa/dpaa_ethdev.c index 85ccea4..444c122 100644 --- a/drivers/net/dpaa/dpaa_ethdev.c +++ b/drivers/net/dpaa/dpaa_ethdev.c @@ -47,6 +47,14 @@ /* Keep track of whether QMAN and BMAN have been globally initialized */ static int is_global_init; +/* At present we only allow up to 4 push mode queues - as each of this queue + * need dedicated portal and we are short of portals. + */ +#define DPAA_MAX_PUSH_MODE_QUEUE 4 + +static int dpaa_push_mode_max_queue = DPAA_MAX_PUSH_MODE_QUEUE; +static int dpaa_push_queue_idx; /* Queue index which are in push mode*/ + /* Per FQ Taildrop in frame count */ static unsigned int td_threshold = CGR_RX_PERFQ_THRESH; @@ -434,6 +442,9 @@ int dpaa_eth_rx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx, { struct dpaa_if *dpaa_intf = dev->data->dev_private; struct qman_fq *rxq = &dpaa_intf->rx_queues[queue_idx]; + struct qm_mcc_initfq opts = {0}; + u32 flags = 0; + int ret; PMD_INIT_FUNC_TRACE(); @@ -469,13 +480,45 @@ int dpaa_eth_rx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx, dpaa_intf->name, fd_offset, fman_if_get_fdoff(dpaa_intf->fif)); } - + /* checking if push mode only, no error check for now */ + if (dpaa_push_mode_max_queue > dpaa_push_queue_idx) { + dpaa_push_queue_idx++; + opts.we_mask = QM_INITFQ_WE_FQCTRL | QM_INITFQ_WE_CONTEXTA; + opts.fqd.fq_ctrl = QM_FQCTRL_AVOIDBLOCK | + QM_FQCTRL_CTXASTASHING | + QM_FQCTRL_PREFERINCACHE; + opts.fqd.context_a.stashing.exclusive = 0; + opts.fqd.context_a.stashing.annotation_cl = + DPAA_IF_RX_ANNOTATION_STASH; + opts.fqd.context_a.stashing.data_cl = DPAA_IF_RX_DATA_STASH; + opts.fqd.context_a.stashing.context_cl = + DPAA_IF_RX_CONTEXT_STASH; + + /*Create a channel and associate given queue with the channel*/ + qman_alloc_pool_range((u32 *)&rxq->ch_id, 1, 1, 0); + opts.we_mask = opts.we_mask | QM_INITFQ_WE_DESTWQ; + opts.fqd.dest.channel = rxq->ch_id; + opts.fqd.dest.wq = DPAA_IF_RX_PRIORITY; + flags = QMAN_INITFQ_FLAG_SCHED; + + /* Configure tail drop */ + if (dpaa_intf->cgr_rx) { + opts.we_mask |= QM_INITFQ_WE_CGID; + opts.fqd.cgid = dpaa_intf->cgr_rx[queue_idx].cgrid; + opts.fqd.fq_ctrl |= QM_FQCTRL_CGE; + } + ret = qman_init_fq(rxq, flags, &opts); + if (ret) + DPAA_PMD_ERR("Channel/Queue association failed. fqid %d" + " ret: %d", rxq->fqid, ret); + rxq->cb.dqrr_dpdk_cb = dpaa_rx_cb; + rxq->is_static = true; + } dev->data->rx_queues[queue_idx] = rxq; /* configure the CGR size as per the desc size */ if (dpaa_intf->cgr_rx) { struct qm_mcc_initcgr cgr_opts = {0}; - int ret; /* Enable tail drop with cgr on this queue */ qm_cgr_cs_thres_set64(&cgr_opts.cgr.cs_thres, nb_desc, 0); @@ -809,11 +852,8 @@ static int dpaa_rx_queue_init(struct qman_fq *fq, struct qman_cgr *cgr_rx, fqid, ret); return ret; } - - opts.we_mask = QM_INITFQ_WE_DESTWQ | QM_INITFQ_WE_FQCTRL | - QM_INITFQ_WE_CONTEXTA; - - opts.fqd.dest.wq = DPAA_IF_RX_PRIORITY; + fq->is_static = false; + opts.we_mask = QM_INITFQ_WE_FQCTRL | QM_INITFQ_WE_CONTEXTA; opts.fqd.fq_ctrl = QM_FQCTRL_AVOIDBLOCK | QM_FQCTRL_CTXASTASHING | QM_FQCTRL_PREFERINCACHE; opts.fqd.context_a.stashing.exclusive = 0; @@ -947,6 +987,16 @@ dpaa_dev_init(struct rte_eth_dev *eth_dev) else num_rx_fqs = DPAA_DEFAULT_NUM_PCD_QUEUES; + /* if push mode queues to be enabled. Currenly we are allowing only + * one queue per thread. + */ + if (getenv("DPAA_PUSH_QUEUES_NUMBER")) { + dpaa_push_mode_max_queue = + atoi(getenv("DPAA_PUSH_QUEUES_NUMBER")); + if (dpaa_push_mode_max_queue > DPAA_MAX_PUSH_MODE_QUEUE) + dpaa_push_mode_max_queue = DPAA_MAX_PUSH_MODE_QUEUE; + } + /* Each device can not have more than DPAA_PCD_FQID_MULTIPLIER RX * queues. */ diff --git a/drivers/net/dpaa/dpaa_ethdev.h b/drivers/net/dpaa/dpaa_ethdev.h index 1b36567..1fa6caf 100644 --- a/drivers/net/dpaa/dpaa_ethdev.h +++ b/drivers/net/dpaa/dpaa_ethdev.h @@ -54,7 +54,7 @@ #define DPAA_MAX_NUM_PCD_QUEUES 32 #define DPAA_IF_TX_PRIORITY 3 -#define DPAA_IF_RX_PRIORITY 4 +#define DPAA_IF_RX_PRIORITY 0 #define DPAA_IF_DEBUG_PRIORITY 7 #define DPAA_IF_RX_ANNOTATION_STASH 1 diff --git a/drivers/net/dpaa/dpaa_rxtx.c b/drivers/net/dpaa/dpaa_rxtx.c index 98671fa..0413932 100644 --- a/drivers/net/dpaa/dpaa_rxtx.c +++ b/drivers/net/dpaa/dpaa_rxtx.c @@ -394,6 +394,37 @@ dpaa_eth_fd_to_mbuf(const struct qm_fd *fd, uint32_t ifid) return mbuf; } +enum qman_cb_dqrr_result dpaa_rx_cb(void *event __always_unused, + struct qman_portal *qm __always_unused, + struct qman_fq *fq, + const struct qm_dqrr_entry *dqrr, + void **bufs) +{ + const struct qm_fd *fd = &dqrr->fd; + + *bufs = dpaa_eth_fd_to_mbuf(fd, + ((struct dpaa_if *)fq->dpaa_intf)->ifid); + return qman_cb_dqrr_consume; +} + +static uint16_t +dpaa_eth_queue_portal_rx(struct qman_fq *fq, + struct rte_mbuf **bufs, + uint16_t nb_bufs) +{ + int ret; + + if (unlikely(fq->qp == NULL)) { + ret = rte_dpaa_portal_fq_init((void *)0, fq); + if (ret) { + DPAA_PMD_ERR("Failure in affining portal %d", ret); + return 0; + } + } + + return qman_portal_poll_rx(nb_bufs, (void **)bufs, fq->qp); +} + uint16_t dpaa_eth_queue_rx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs) @@ -403,6 +434,9 @@ uint16_t dpaa_eth_queue_rx(void *q, uint32_t num_rx = 0, ifid = ((struct dpaa_if *)fq->dpaa_intf)->ifid; int ret; + if (likely(fq->is_static)) + return dpaa_eth_queue_portal_rx(fq, bufs, nb_bufs); + ret = rte_dpaa_portal_init((void *)0); if (ret) { DPAA_PMD_ERR("Failure in affining portal"); diff --git a/drivers/net/dpaa/dpaa_rxtx.h b/drivers/net/dpaa/dpaa_rxtx.h index 78e804f..29d8f95 100644 --- a/drivers/net/dpaa/dpaa_rxtx.h +++ b/drivers/net/dpaa/dpaa_rxtx.h @@ -268,4 +268,9 @@ int dpaa_eth_mbuf_to_sg_fd(struct rte_mbuf *mbuf, struct qm_fd *fd, uint32_t bpid); +enum qman_cb_dqrr_result dpaa_rx_cb(void *event, + struct qman_portal *qm, + struct qman_fq *fq, + const struct qm_dqrr_entry *dqrr, + void **bd); #endif -- 2.7.4