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From: Jerin Jacob <jerin.jacob@caviumnetworks.com>
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CC: <thomas.monjalon@6wind.com>, <bruce.richardson@intel.com>, Jerin Jacob
<jerin.jacob@caviumnetworks.com>, Maciej Czekaj
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Subject: [dpdk-dev] [PATCH 15/20] thunderx/nicvf: add rx queue start and
stop support
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Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Signed-off-by: Maciej Czekaj <maciej.czekaj@caviumnetworks.com>
Signed-off-by: Kamil Rytarowski <Kamil.Rytarowski@caviumnetworks.com>
Signed-off-by: Zyta Szpak <zyta.szpak@semihalf.com>
Signed-off-by: Slawomir Rosek <slawomir.rosek@semihalf.com>
Signed-off-by: Radoslaw Biernacki <rad@semihalf.com>
---
drivers/net/thunderx/nicvf_ethdev.c | 174 ++++++++++++++++++++++++++++++++++++
drivers/net/thunderx/nicvf_rxtx.c | 18 ++++
drivers/net/thunderx/nicvf_rxtx.h | 1 +
3 files changed, 193 insertions(+)
diff --git a/drivers/net/thunderx/nicvf_ethdev.c b/drivers/net/thunderx/nicvf_ethdev.c
index 0c72201..9b917c1 100644
--- a/drivers/net/thunderx/nicvf_ethdev.c
+++ b/drivers/net/thunderx/nicvf_ethdev.c
@@ -88,6 +88,8 @@ static int nicvf_dev_rss_hash_update(struct rte_eth_dev *dev,
struct rte_eth_rss_conf *rss_conf);
static int nicvf_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
struct rte_eth_rss_conf *rss_conf);
+static int nicvf_dev_rx_queue_start(struct rte_eth_dev *dev, uint16_t qidx);
+static int nicvf_dev_rx_queue_stop(struct rte_eth_dev *dev, uint16_t qidx);
static int nicvf_dev_rx_queue_setup(struct rte_eth_dev *dev, uint16_t qidx,
uint16_t nb_desc, unsigned int socket_id,
const struct rte_eth_rxconf *rx_conf,
@@ -616,6 +618,54 @@ nicvf_tx_queue_reset(struct nicvf_txq *txq)
txq->xmit_bufs = 0;
}
+
+static inline int
+nicvf_configure_cpi(struct rte_eth_dev *dev)
+{
+ struct nicvf *nic = nicvf_pmd_priv(dev);
+ uint16_t qidx, qcnt;
+ int ret;
+
+ /* Count started rx queues */
+ for (qidx = qcnt = 0; qidx < nic->eth_dev->data->nb_rx_queues; qidx++)
+ if (dev->data->rx_queue_state[qidx] ==
+ RTE_ETH_QUEUE_STATE_STARTED)
+ qcnt++;
+
+ nic->cpi_alg = CPI_ALG_NONE;
+ ret = nicvf_mbox_config_cpi(nic, qcnt);
+ if (ret)
+ PMD_INIT_LOG(ERR, "Failed to configure CPI %d", ret);
+
+ return ret;
+}
+
+static int
+nicvf_configure_rss_reta(struct rte_eth_dev *dev)
+{
+ struct nicvf *nic = nicvf_pmd_priv(dev);
+ unsigned int idx, qmap_size;
+ uint8_t qmap[RTE_MAX_QUEUES_PER_PORT];
+ uint8_t default_reta[NIC_MAX_RSS_IDR_TBL_SIZE];
+
+ if (nic->cpi_alg != CPI_ALG_NONE)
+ return -EINVAL;
+
+ /* Prepare queue map */
+ for (idx = 0, qmap_size = 0; idx < dev->data->nb_rx_queues; idx++) {
+ if (dev->data->rx_queue_state[idx] ==
+ RTE_ETH_QUEUE_STATE_STARTED)
+ qmap[qmap_size++] = idx;
+ }
+
+ /* Update default RSS RETA */
+ for (idx = 0; idx < NIC_MAX_RSS_IDR_TBL_SIZE; idx++)
+ default_reta[idx] = qmap[idx % qmap_size];
+
+ return nicvf_rss_reta_update(nic, default_reta,
+ NIC_MAX_RSS_IDR_TBL_SIZE);
+}
+
static void
nicvf_dev_tx_queue_release(void *sq)
{
@@ -738,6 +788,32 @@ nicvf_dev_tx_queue_setup(struct rte_eth_dev *dev, uint16_t qidx,
return 0;
}
+static inline void
+nicvf_rx_queue_release_mbufs(struct nicvf_rxq *rxq)
+{
+ uint32_t rxq_cnt;
+ uint32_t nb_pkts, released_pkts = 0;
+ uint32_t refill_cnt = 0;
+ struct rte_eth_dev *dev = rxq->nic->eth_dev;
+ struct rte_mbuf *rx_pkts[MAX_RX_FREE_THRESH];
+
+ if (dev->rx_pkt_burst == NULL)
+ return;
+
+ while ((rxq_cnt = nicvf_dev_rx_queue_count(dev, rxq->queue_id))) {
+ nb_pkts = dev->rx_pkt_burst(rxq, rx_pkts, MAX_RX_FREE_THRESH);
+ PMD_DRV_LOG(INFO, "nb_pkts=%d rxq_cnt=%d", nb_pkts, rxq_cnt);
+ while (nb_pkts) {
+ rte_pktmbuf_free_seg(rx_pkts[--nb_pkts]);
+ released_pkts++;
+ }
+ }
+
+ refill_cnt += nicvf_dev_rbdr_refill(dev, rxq->queue_id);
+ PMD_DRV_LOG(INFO, "free_cnt=%d refill_cnt=%d",
+ released_pkts, refill_cnt);
+}
+
static void
nicvf_rx_queue_reset(struct nicvf_rxq *rxq)
{
@@ -746,6 +822,69 @@ nicvf_rx_queue_reset(struct nicvf_rxq *rxq)
rxq->recv_buffers = 0;
}
+static inline int
+nicvf_start_rx_queue(struct rte_eth_dev *dev, uint16_t qidx)
+{
+ struct nicvf *nic = nicvf_pmd_priv(dev);
+ struct nicvf_rxq *rxq;
+ int ret;
+
+ if (dev->data->rx_queue_state[qidx] == RTE_ETH_QUEUE_STATE_STARTED)
+ return 0;
+
+ /* Update rbdr pointer to all rxq */
+ rxq = dev->data->rx_queues[qidx];
+ rxq->shared_rbdr = nic->rbdr;
+
+ ret = nicvf_qset_rq_config(nic, qidx, rxq);
+ if (ret) {
+ PMD_INIT_LOG(ERR, "Failed to configure rq %d %d", qidx, ret);
+ goto config_rq_error;
+ }
+ ret = nicvf_qset_cq_config(nic, qidx, rxq);
+ if (ret) {
+ PMD_INIT_LOG(ERR, "Failed to configure cq %d %d", qidx, ret);
+ goto config_cq_error;
+ }
+
+ dev->data->rx_queue_state[qidx] = RTE_ETH_QUEUE_STATE_STARTED;
+ return 0;
+
+config_cq_error:
+ nicvf_qset_cq_reclaim(nic, qidx);
+config_rq_error:
+ nicvf_qset_rq_reclaim(nic, qidx);
+ return ret;
+}
+
+static inline int
+nicvf_stop_rx_queue(struct rte_eth_dev *dev, uint16_t qidx)
+{
+ struct nicvf *nic = nicvf_pmd_priv(dev);
+ struct nicvf_rxq *rxq;
+ int ret, other_error;
+
+ if (dev->data->rx_queue_state[qidx] == RTE_ETH_QUEUE_STATE_STOPPED)
+ return 0;
+
+ ret = nicvf_qset_rq_reclaim(nic, qidx);
+ if (ret)
+ PMD_INIT_LOG(ERR, "Failed to reclaim rq %d %d", qidx, ret);
+
+ other_error = ret;
+ rxq = dev->data->rx_queues[qidx];
+ nicvf_rx_queue_release_mbufs(rxq);
+ nicvf_rx_queue_reset(rxq);
+
+ ret = nicvf_qset_cq_reclaim(nic, qidx);
+ if (ret)
+ PMD_INIT_LOG(ERR, "Failed to reclaim cq %d %d", qidx, ret);
+
+ other_error |= ret;
+ dev->data->rx_queue_state[qidx] = RTE_ETH_QUEUE_STATE_STOPPED;
+ return other_error;
+}
+
static void
nicvf_dev_rx_queue_release(void *rx_queue)
{
@@ -758,6 +897,39 @@ nicvf_dev_rx_queue_release(void *rx_queue)
}
static int
+nicvf_dev_rx_queue_start(struct rte_eth_dev *dev, uint16_t qidx)
+{
+ int ret;
+
+ if (qidx >= nicvf_pmd_priv(dev)->eth_dev->data->nb_rx_queues)
+ return -EINVAL;
+
+ ret = nicvf_start_rx_queue(dev, qidx);
+ if (ret)
+ return ret;
+
+ ret = nicvf_configure_cpi(dev);
+ if (ret)
+ return ret;
+
+ return nicvf_configure_rss_reta(dev);
+}
+
+static int
+nicvf_dev_rx_queue_stop(struct rte_eth_dev *dev, uint16_t qidx)
+{
+ int ret;
+
+ if (qidx >= nicvf_pmd_priv(dev)->eth_dev->data->nb_rx_queues)
+ return -EINVAL;
+
+ ret = nicvf_stop_rx_queue(dev, qidx);
+ ret |= nicvf_configure_cpi(dev);
+ ret |= nicvf_configure_rss_reta(dev);
+ return ret;
+}
+
+static int
nicvf_dev_rx_queue_setup(struct rte_eth_dev *dev, uint16_t qidx,
uint16_t nb_desc, unsigned int socket_id,
const struct rte_eth_rxconf *rx_conf,
@@ -984,6 +1156,8 @@ static const struct eth_dev_ops nicvf_eth_dev_ops = {
.reta_query = nicvf_dev_reta_query,
.rss_hash_update = nicvf_dev_rss_hash_update,
.rss_hash_conf_get = nicvf_dev_rss_hash_conf_get,
+ .rx_queue_start = nicvf_dev_rx_queue_start,
+ .rx_queue_stop = nicvf_dev_rx_queue_stop,
.rx_queue_setup = nicvf_dev_rx_queue_setup,
.rx_queue_release = nicvf_dev_rx_queue_release,
.rx_queue_count = nicvf_dev_rx_queue_count,
diff --git a/drivers/net/thunderx/nicvf_rxtx.c b/drivers/net/thunderx/nicvf_rxtx.c
index 27e5e1c..7724054 100644
--- a/drivers/net/thunderx/nicvf_rxtx.c
+++ b/drivers/net/thunderx/nicvf_rxtx.c
@@ -604,3 +604,21 @@ nicvf_dev_rx_queue_count(struct rte_eth_dev *dev, uint16_t queue_idx)
rxq = (struct nicvf_rxq *)dev->data->rx_queues[queue_idx];
return nicvf_addr_read(rxq->cq_status) & NICVF_CQ_CQE_COUNT_MASK;
}
+
+uint32_t
+nicvf_dev_rbdr_refill(struct rte_eth_dev *dev, uint16_t queue_idx)
+{
+ struct nicvf_rxq *rxq;
+ uint32_t to_process;
+ uint32_t rx_free;
+
+ rxq = (struct nicvf_rxq *)dev->data->rx_queues[queue_idx];
+ to_process = rxq->recv_buffers;
+ while (rxq->recv_buffers > 0) {
+ rx_free = RTE_MIN(rxq->recv_buffers, MAX_RX_FREE_THRESH);
+ rxq->recv_buffers -= nicvf_fill_rbdr(rxq, rx_free);
+ }
+
+ assert(rxq->recv_buffers == 0);
+ return to_process;
+}
diff --git a/drivers/net/thunderx/nicvf_rxtx.h b/drivers/net/thunderx/nicvf_rxtx.h
index 10f4bf9..d2f57bb 100644
--- a/drivers/net/thunderx/nicvf_rxtx.h
+++ b/drivers/net/thunderx/nicvf_rxtx.h
@@ -53,6 +53,7 @@ nicvf_frag_num(uint16_t i)
}
uint32_t nicvf_dev_rx_queue_count(struct rte_eth_dev *dev, uint16_t queue_idx);
+uint32_t nicvf_dev_rbdr_refill(struct rte_eth_dev *dev, uint16_t queue_idx);
uint16_t nicvf_recv_pkts(void *rxq, struct rte_mbuf **rx_pkts, uint16_t pkts);
uint16_t nicvf_recv_pkts_multiseg(void *rx_queue, struct rte_mbuf **rx_pkts,
--
2.1.0