[dpdk-dev] [PATCH 1/2] net/bnxt: add support for runtime queue setup

[Ajit Khaparde <ajit.khaparde@broadcom.com>]

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Add support for runtime Rx and Tx queue setup. This will allow
Rx/Tx queue setup after the interface is started.

Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
---
 drivers/net/bnxt/bnxt_ethdev.c |  2 ++
 drivers/net/bnxt/bnxt_hwrm.c   | 46 ++++++++++++++++++++++++------
 drivers/net/bnxt/bnxt_hwrm.h   |  3 ++
 drivers/net/bnxt/bnxt_ring.c   | 51 ++++++++++++++++++++++++++++++++++
 drivers/net/bnxt/bnxt_rxq.c    | 12 ++------
 drivers/net/bnxt/bnxt_txq.c    |  2 ++
 drivers/net/bnxt/bnxt_txr.c    |  6 ++++
 7 files changed, 105 insertions(+), 17 deletions(-)

diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index 4d51a209f9..495c6cd21e 100644
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -987,6 +987,8 @@ static int bnxt_dev_info_get_op(struct rte_eth_dev *eth_dev,
 	dev_info->flow_type_rss_offloads = BNXT_ETH_RSS_SUPPORT;
 
 	dev_info->speed_capa = bnxt_get_speed_capabilities(bp);
+	dev_info->dev_capa = RTE_ETH_DEV_CAPA_RUNTIME_RX_QUEUE_SETUP |
+			     RTE_ETH_DEV_CAPA_RUNTIME_TX_QUEUE_SETUP;
 
 	dev_info->default_rxconf = (struct rte_eth_rxconf) {
 		.rx_thresh = {
diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index 6c4f83ee3b..1a4968abe6 100644
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -1917,7 +1917,7 @@ int bnxt_hwrm_stat_clear(struct bnxt *bp, struct bnxt_cp_ring_info *cpr)
 	return rc;
 }
 
-static int bnxt_hwrm_stat_ctx_alloc(struct bnxt *bp, struct bnxt_cp_ring_info *cpr)
+int bnxt_hwrm_stat_ctx_alloc(struct bnxt *bp, struct bnxt_cp_ring_info *cpr)
 {
 	int rc;
 	struct hwrm_stat_ctx_alloc_input req = {.req_type = 0 };
@@ -2637,10 +2637,11 @@ int bnxt_alloc_all_hwrm_stat_ctxs(struct bnxt *bp)
 			cpr = rxq->cp_ring;
 		}
 
-		rc = bnxt_hwrm_stat_ctx_alloc(bp, cpr);
-
-		if (rc)
-			return rc;
+		if (cpr->hw_stats_ctx_id == HWRM_NA_SIGNATURE) {
+			rc = bnxt_hwrm_stat_ctx_alloc(bp, cpr);
+			if (rc)
+				return rc;
+		}
 	}
 	return rc;
 }
@@ -2720,6 +2721,12 @@ void bnxt_free_hwrm_rx_ring(struct bnxt *bp, int queue_index)
 			bp->grp_info[queue_index].ag_fw_ring_id =
 							INVALID_HW_RING_ID;
 	}
+
+	if (cpr->hw_stats_ctx_id != HWRM_NA_SIGNATURE) {
+		bnxt_hwrm_stat_ctx_free(bp, cpr);
+		cpr->hw_stats_ctx_id = HWRM_NA_SIGNATURE;
+	}
+
 	if (cpr->cp_ring_struct->fw_ring_id != INVALID_HW_RING_ID)
 		bnxt_free_cp_ring(bp, cpr);
 
@@ -5093,7 +5100,6 @@ static int
 bnxt_vnic_rss_configure_p5(struct bnxt *bp, struct bnxt_vnic_info *vnic)
 {
 	struct hwrm_vnic_rss_cfg_output *resp = bp->hwrm_cmd_resp_addr;
-	uint8_t *rx_queue_state = bp->eth_dev->data->rx_queue_state;
 	struct hwrm_vnic_rss_cfg_input req = {.req_type = 0 };
 	struct bnxt_rx_queue **rxqs = bp->rx_queues;
 	uint16_t *ring_tbl = vnic->rss_table;
@@ -5127,8 +5133,7 @@ bnxt_vnic_rss_configure_p5(struct bnxt *bp, struct bnxt_vnic_info *vnic)
 
 			/* Find next active ring. */
 			for (cnt = 0; cnt < max_rings; cnt++) {
-				if (rx_queue_state[k] !=
-						RTE_ETH_QUEUE_STATE_STOPPED)
+				if (rxqs[k]->rx_started)
 					break;
 				if (++k == max_rings)
 					k = 0;
@@ -6194,3 +6199,28 @@ int bnxt_hwrm_read_sfp_module_eeprom_info(struct bnxt *bp, uint16_t i2c_addr,
 
 	return rc;
 }
+
+void bnxt_free_hwrm_tx_ring(struct bnxt *bp, int queue_index)
+{
+	struct bnxt_tx_queue *txq = bp->tx_queues[queue_index];
+	struct bnxt_tx_ring_info *txr = txq->tx_ring;
+	struct bnxt_ring *ring = txr->tx_ring_struct;
+	struct bnxt_cp_ring_info *cpr = txq->cp_ring;
+
+	if (ring->fw_ring_id != INVALID_HW_RING_ID) {
+		bnxt_hwrm_ring_free(bp, ring,
+				    HWRM_RING_FREE_INPUT_RING_TYPE_TX,
+				    cpr->cp_ring_struct->fw_ring_id);
+		ring->fw_ring_id = INVALID_HW_RING_ID;
+	}
+
+	if (cpr->hw_stats_ctx_id != HWRM_NA_SIGNATURE) {
+		bnxt_hwrm_stat_ctx_free(bp, cpr);
+		cpr->hw_stats_ctx_id = HWRM_NA_SIGNATURE;
+	}
+
+	if (cpr->cp_ring_struct->fw_ring_id != INVALID_HW_RING_ID) {
+		bnxt_free_cp_ring(bp, cpr);
+		cpr->cp_ring_struct->fw_ring_id = INVALID_HW_RING_ID;
+	}
+}
diff --git a/drivers/net/bnxt/bnxt_hwrm.h b/drivers/net/bnxt/bnxt_hwrm.h
index 057f7f94d0..ec3414f0c6 100644
--- a/drivers/net/bnxt/bnxt_hwrm.h
+++ b/drivers/net/bnxt/bnxt_hwrm.h
@@ -304,4 +304,7 @@ int bnxt_hwrm_ring_stats(struct bnxt *bp, uint32_t cid, int idx,
 int bnxt_hwrm_read_sfp_module_eeprom_info(struct bnxt *bp, uint16_t i2c_addr,
 					  uint16_t page_number, uint16_t start_addr,
 					  uint16_t data_length, uint8_t *buf);
+int bnxt_hwrm_stat_ctx_alloc(struct bnxt *bp, struct bnxt_cp_ring_info *cpr);
+void bnxt_free_hwrm_tx_ring(struct bnxt *bp, int queue_index);
+int bnxt_alloc_hwrm_tx_ring(struct bnxt *bp, int queue_index);
 #endif
diff --git a/drivers/net/bnxt/bnxt_ring.c b/drivers/net/bnxt/bnxt_ring.c
index cb18dfba7f..9ec0c10911 100644
--- a/drivers/net/bnxt/bnxt_ring.c
+++ b/drivers/net/bnxt/bnxt_ring.c
@@ -599,6 +599,10 @@ int bnxt_alloc_hwrm_rx_ring(struct bnxt *bp, int queue_index)
 	if (rc)
 		goto err_out;
 
+	rc = bnxt_hwrm_stat_ctx_alloc(bp, cpr);
+	if (rc)
+		goto err_out;
+
 	if (BNXT_HAS_RING_GRPS(bp)) {
 		bp->grp_info[queue_index].fw_stats_ctx = cpr->hw_stats_ctx_id;
 		bp->grp_info[queue_index].cp_fw_ring_id = cp_ring->fw_ring_id;
@@ -837,3 +841,50 @@ int bnxt_alloc_async_ring_struct(struct bnxt *bp)
 	return bnxt_alloc_rings(bp, bp->eth_dev->device->numa_node, 0, NULL,
 				NULL, bp->async_cp_ring, NULL, "def_cp");
 }
+
+int bnxt_alloc_hwrm_tx_ring(struct bnxt *bp, int queue_index)
+{
+	struct bnxt_tx_queue *txq = bp->tx_queues[queue_index];
+	struct bnxt_cp_ring_info *cpr = txq->cp_ring;
+	struct bnxt_ring *cp_ring = cpr->cp_ring_struct;
+	struct bnxt_tx_ring_info *txr = txq->tx_ring;
+	struct bnxt_ring *ring = txr->tx_ring_struct;
+	unsigned int idx = queue_index + bp->rx_cp_nr_rings;
+	uint16_t tx_cosq_id = 0;
+	struct bnxt_coal coal;
+	int rc = 0;
+
+	rc = bnxt_alloc_cmpl_ring(bp, idx, cpr);
+	if (rc)
+		goto err_out;
+
+	bnxt_init_dflt_coal(&coal);
+	bnxt_hwrm_set_ring_coal(bp, &coal, cp_ring->fw_ring_id);
+
+	rc = bnxt_hwrm_stat_ctx_alloc(bp, cpr);
+	if (rc)
+		goto err_out;
+
+	if (bp->vnic_cap_flags & BNXT_VNIC_CAP_COS_CLASSIFY)
+		tx_cosq_id = bp->tx_cosq_id[queue_index < bp->max_lltc ? queue_index : 0];
+	else
+		tx_cosq_id = bp->tx_cosq_id[0];
+
+	rc = bnxt_hwrm_ring_alloc(bp, ring,
+				  HWRM_RING_ALLOC_INPUT_RING_TYPE_TX,
+				  queue_index, cpr->hw_stats_ctx_id,
+				  cp_ring->fw_ring_id,
+				  tx_cosq_id);
+	if (rc)
+		goto err_out;
+
+	bnxt_set_db(bp, &txr->tx_db, HWRM_RING_ALLOC_INPUT_RING_TYPE_TX,
+		    queue_index, ring->fw_ring_id,
+		    ring->ring_mask);
+	txq->index = idx;
+
+	return rc;
+err_out:
+	bnxt_free_hwrm_tx_ring(bp, queue_index);
+	return rc;
+}
diff --git a/drivers/net/bnxt/bnxt_rxq.c b/drivers/net/bnxt/bnxt_rxq.c
index 44b09e9c61..bbcb3b06e7 100644
--- a/drivers/net/bnxt/bnxt_rxq.c
+++ b/drivers/net/bnxt/bnxt_rxq.c
@@ -248,6 +248,7 @@ void bnxt_rx_queue_release_op(void *rx_queue)
 		if (is_bnxt_in_error(rxq->bp))
 			return;
 
+		bnxt_free_hwrm_rx_ring(rxq->bp, rxq->queue_id);
 		bnxt_rx_queue_release_mbufs(rxq);
 
 		/* Free RX ring hardware descriptors */
@@ -286,7 +287,6 @@ int bnxt_rx_queue_setup_op(struct rte_eth_dev *eth_dev,
 	uint64_t rx_offloads = eth_dev->data->dev_conf.rxmode.offloads;
 	struct bnxt_rx_queue *rxq;
 	int rc = 0;
-	uint8_t queue_state;
 
 	rc = is_bnxt_in_error(bp);
 	if (rc)
@@ -360,14 +360,8 @@ int bnxt_rx_queue_setup_op(struct rte_eth_dev *eth_dev,
 	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;
+	rxq->rx_started = rxq->rx_deferred_start ? false : true;
+	rxq->vnic = BNXT_GET_DEFAULT_VNIC(bp);
 
 	/* Configure mtu if it is different from what was configured before */
 	if (!queue_idx)
diff --git a/drivers/net/bnxt/bnxt_txq.c b/drivers/net/bnxt/bnxt_txq.c
index bc789224d2..830416af3d 100644
--- a/drivers/net/bnxt/bnxt_txq.c
+++ b/drivers/net/bnxt/bnxt_txq.c
@@ -8,6 +8,7 @@
 #include <rte_malloc.h>
 
 #include "bnxt.h"
+#include "bnxt_hwrm.h"
 #include "bnxt_ring.h"
 #include "bnxt_txq.h"
 #include "bnxt_txr.h"
@@ -61,6 +62,7 @@ void bnxt_tx_queue_release_op(void *tx_queue)
 			return;
 
 		/* Free TX ring hardware descriptors */
+		bnxt_free_hwrm_tx_ring(txq->bp, txq->queue_id);
 		bnxt_tx_queue_release_mbufs(txq);
 		if (txq->tx_ring) {
 			bnxt_free_ring(txq->tx_ring->tx_ring_struct);
diff --git a/drivers/net/bnxt/bnxt_txr.c b/drivers/net/bnxt/bnxt_txr.c
index 8eb9493997..9a6b96e04a 100644
--- a/drivers/net/bnxt/bnxt_txr.c
+++ b/drivers/net/bnxt/bnxt_txr.c
@@ -9,6 +9,7 @@
 #include <rte_malloc.h>
 
 #include "bnxt.h"
+#include "bnxt_hwrm.h"
 #include "bnxt_ring.h"
 #include "bnxt_txq.h"
 #include "bnxt_txr.h"
@@ -547,6 +548,11 @@ int bnxt_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
 	if (rc)
 		return rc;
 
+	bnxt_free_hwrm_tx_ring(bp, tx_queue_id);
+	rc = bnxt_alloc_hwrm_tx_ring(bp, tx_queue_id);
+	if (rc)
+		return rc;
+
 	dev->data->tx_queue_state[tx_queue_id] = RTE_ETH_QUEUE_STATE_STARTED;
 	txq->tx_started = true;
 	PMD_DRV_LOG(DEBUG, "Tx queue started\n");
-- 
2.21.1 (Apple Git-122.3)