From: Kalesh AP <kalesh-anakkur.pura...@broadcom.com>
Driver should not change "deferred_start" state of the rx queues.
It should get the state in queue_setup_op() and use that value.
Since the deferred start state was being used in the packet receive
functions to determine whether a stopped rx ring should be polled,
introduced a per-rxq flag to track queue stopped/started state.
Fixes: 9b63c6fd70e3 ("net/bnxt: support Rx/Tx queue start/stop")
Signed-off-by: Kalesh AP <kalesh-anakkur.pura...@broadcom.com>
Signed-off-by: Lance Richardson <lance.richard...@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khapa...@broadcom.com>
---
drivers/net/bnxt/bnxt_ethdev.c | 2 +-
drivers/net/bnxt/bnxt_ring.c | 3 +--
drivers/net/bnxt/bnxt_rxq.c | 36 +++++++++++++++++++---------
drivers/net/bnxt/bnxt_rxq.h | 1 +
drivers/net/bnxt/bnxt_rxr.c | 7 +++---
drivers/net/bnxt/bnxt_rxtx_vec_sse.c | 2 +-
6 files changed, 32 insertions(+), 19 deletions(-)
diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index bccf3a565..3c8307b63 100644
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -1884,7 +1884,7 @@ bnxt_rxq_info_get_op(struct rte_eth_dev *dev, uint16_t
queue_id,
qinfo->conf.rx_free_thresh = rxq->rx_free_thresh;
qinfo->conf.rx_drop_en = 0;
- qinfo->conf.rx_deferred_start = 0;
+ qinfo->conf.rx_deferred_start = rxq->rx_deferred_start;
}
static void
diff --git a/drivers/net/bnxt/bnxt_ring.c b/drivers/net/bnxt/bnxt_ring.c
index d419a46bb..119a6919f 100644
--- a/drivers/net/bnxt/bnxt_ring.c
+++ b/drivers/net/bnxt/bnxt_ring.c
@@ -615,8 +615,7 @@ int bnxt_alloc_hwrm_rx_ring(struct bnxt *bp, int
queue_index)
if (rc)
goto err_out;
- if (bp->eth_dev->data->rx_queue_state[queue_index] ==
- RTE_ETH_QUEUE_STATE_STARTED) {
+ if (!rxq->rx_started) {
if (bnxt_init_one_rx_ring(rxq)) {
RTE_LOG(ERR, PMD,
"bnxt_init_one_rx_ring failed!\n");
diff --git a/drivers/net/bnxt/bnxt_rxq.c b/drivers/net/bnxt/bnxt_rxq.c
index e3872c294..8492cf55e 100644
--- a/drivers/net/bnxt/bnxt_rxq.c
+++ b/drivers/net/bnxt/bnxt_rxq.c
@@ -359,9 +359,19 @@ int bnxt_rx_queue_setup_op(struct rte_eth_dev *eth_dev,
}
rte_atomic64_init(&rxq->rx_mbuf_alloc_fail);
- rxq->rx_deferred_start = rx_conf->rx_deferred_start;
- queue_state = rxq->rx_deferred_start ? RTE_ETH_QUEUE_STATE_STOPPED :
- RTE_ETH_QUEUE_STATE_STARTED;
+ /* rxq 0 must not be stopped when used as async CPR */
+ if (!BNXT_NUM_ASYNC_CPR(bp) && queue_idx == 0)
+ rxq->rx_deferred_start = false;
+ else
+ rxq->rx_deferred_start = rx_conf->rx_deferred_start;
+
+ if (rxq->rx_deferred_start) {
+ queue_state = RTE_ETH_QUEUE_STATE_STOPPED;
+ rxq->rx_started = false;
+ } else {
+ queue_state = RTE_ETH_QUEUE_STATE_STARTED;
+ rxq->rx_started = true;
+ }
eth_dev->data->rx_queue_state[queue_idx] = queue_state;
rte_spinlock_init(&rxq->lock);
@@ -434,6 +444,11 @@ int bnxt_rx_queue_start(struct rte_eth_dev *dev, uint16_t
rx_queue_id)
return -EINVAL;
}
+ /* Set the queue state to started here.
+ * We check the status of the queue while posting buffer.
+ * If queue is it started, we do not post buffers for Rx.
+ */
+ rxq->rx_started = true;
bnxt_free_hwrm_rx_ring(bp, rx_queue_id);
rc = bnxt_alloc_hwrm_rx_ring(bp, rx_queue_id);
if (rc)
@@ -450,20 +465,19 @@ int bnxt_rx_queue_start(struct rte_eth_dev *dev, uint16_t
rx_queue_id)
vnic->fw_grp_ids[rx_queue_id] =
bp->grp_info[rx_queue_id].fw_grp_id;
+ PMD_DRV_LOG(DEBUG,
+ "vnic = %p fw_grp_id = %d\n",
+ vnic, bp->grp_info[rx_queue_id].fw_grp_id);
}
- PMD_DRV_LOG(DEBUG,
- "vnic = %p fw_grp_id = %d\n",
- vnic, bp->grp_info[rx_queue_id].fw_grp_id);
-
rc = bnxt_vnic_rss_configure(bp, vnic);
}
- if (rc == 0) {
+ if (rc == 0)
dev->data->rx_queue_state[rx_queue_id] =
RTE_ETH_QUEUE_STATE_STARTED;
- rxq->rx_deferred_start = false;
- }
+ else
+ rxq->rx_started = false;
PMD_DRV_LOG(INFO,
"queue %d, rx_deferred_start %d, state %d!\n",
@@ -502,7 +516,7 @@ int bnxt_rx_queue_stop(struct rte_eth_dev *dev, uint16_t
rx_queue_id)
}
dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED;
- rxq->rx_deferred_start = true;
+ rxq->rx_started = false;
PMD_DRV_LOG(DEBUG, "Rx queue stopped\n");
if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG) {
diff --git a/drivers/net/bnxt/bnxt_rxq.h b/drivers/net/bnxt/bnxt_rxq.h
index 7873886ca..4f5182d9e 100644
--- a/drivers/net/bnxt/bnxt_rxq.h
+++ b/drivers/net/bnxt/bnxt_rxq.h
@@ -30,6 +30,7 @@ struct bnxt_rx_queue {
uint16_t port_id; /* Device port identifier */
uint8_t crc_len; /* 0 if CRC stripped, 4 otherwise */
uint8_t rx_deferred_start; /* not in global dev start */
+ uint8_t rx_started; /* RX queue is started */
struct bnxt *bp;
int index;
diff --git a/drivers/net/bnxt/bnxt_rxr.c b/drivers/net/bnxt/bnxt_rxr.c
index 088cd0953..cf8fc4306 100644
--- a/drivers/net/bnxt/bnxt_rxr.c
+++ b/drivers/net/bnxt/bnxt_rxr.c
@@ -576,10 +576,9 @@ uint16_t bnxt_recv_pkts(void *rx_queue, struct rte_mbuf
**rx_pkts,
if (unlikely(is_bnxt_in_error(rxq->bp)))
return 0;
- /* If Rx Q was stopped return. RxQ0 cannot be stopped. */
- if (unlikely(((rxq->rx_deferred_start ||
- !rte_spinlock_trylock(&rxq->lock)) &&
- rxq->queue_id)))
+ /* If Rx Q was stopped return */
+ if (unlikely(!rxq->rx_started ||
+ !rte_spinlock_trylock(&rxq->lock)))
return 0;
/* Handle RX burst request */
diff --git a/drivers/net/bnxt/bnxt_rxtx_vec_sse.c
b/drivers/net/bnxt/bnxt_rxtx_vec_sse.c
index 980fddb1f..ad8561b32 100644
--- a/drivers/net/bnxt/bnxt_rxtx_vec_sse.c
+++ b/drivers/net/bnxt/bnxt_rxtx_vec_sse.c
@@ -224,7 +224,7 @@ bnxt_recv_pkts_vec(void *rx_queue, struct rte_mbuf
**rx_pkts,
0xFF, 0xFF, 0xFF, 0xFF); /* pkt_type (zeroes) */
/* If Rx Q was stopped return */
- if (rxq->rx_deferred_start)
+ if (unlikely(!rxq->rx_started))
return 0;
if (rxq->rxrearm_nb >= RTE_BNXT_RXQ_REARM_THRESH)
--
2.20.1 (Apple Git-117)
