[dpdk-dev] [PATCH 2/6] net/bnxt: fix to cap queue count for NS3/Stingray devices

[Somnath Kotur]

Cap max queue count to 128 for NS3 devices and ensure that same count
is reported as part of dev_info_get_op as well

Signed-off-by: Somnath Kotur <somnath.ko...@broadcom.com>
Reviewed-by: Rahul Gupta <rahul.gu...@broadcom.com>
---
 drivers/net/bnxt/bnxt.h        | 7 +++++++
 drivers/net/bnxt/bnxt_ethdev.c | 2 +-
 drivers/net/bnxt/bnxt_rxq.c    | 2 +-
 drivers/net/bnxt/bnxt_txq.c    | 2 +-
 4 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/net/bnxt/bnxt.h b/drivers/net/bnxt/bnxt.h
index 9901ba902..e259c8239 100644
--- a/drivers/net/bnxt/bnxt.h
+++ b/drivers/net/bnxt/bnxt.h
@@ -608,6 +608,13 @@ struct bnxt {
        uint16_t                max_cp_rings;
        uint16_t                max_tx_rings;
        uint16_t                max_rx_rings;
+#define MAX_STINGRAY_RINGS             128U
+#define BNXT_MAX_RINGS(bp) \
+       (BNXT_STINGRAY(bp) ? RTE_MIN(RTE_MIN(bp->max_rx_rings, \
+                                            MAX_STINGRAY_RINGS), \
+                                    bp->max_stat_ctx) : \
+                               RTE_MIN(bp->max_rx_rings, bp->max_stat_ctx))
+
        uint16_t                max_nq_rings;
        uint16_t                max_l2_ctx;
        uint16_t                max_rx_em_flows;
diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index 9aff38298..3a45fb6c7 100644
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -504,7 +504,7 @@ static int bnxt_dev_info_get_op(struct rte_eth_dev *eth_dev,
        if (BNXT_PF(bp))
                dev_info->max_vfs = pdev->max_vfs;
 
-       max_rx_rings = RTE_MIN(bp->max_rx_rings, bp->max_stat_ctx);
+       max_rx_rings = BNXT_MAX_RINGS(bp);
        /* For the sake of symmetry, max_rx_queues = max_tx_queues */
        dev_info->max_rx_queues = max_rx_rings;
        dev_info->max_tx_queues = max_rx_rings;
diff --git a/drivers/net/bnxt/bnxt_rxq.c b/drivers/net/bnxt/bnxt_rxq.c
index e7c012f68..fa11bec4e 100644
--- a/drivers/net/bnxt/bnxt_rxq.c
+++ b/drivers/net/bnxt/bnxt_rxq.c
@@ -296,7 +296,7 @@ int bnxt_rx_queue_setup_op(struct rte_eth_dev *eth_dev,
        if (rc)
                return rc;
 
-       if (queue_idx >= bp->max_rx_rings) {
+       if (queue_idx >= BNXT_MAX_RINGS(bp)) {
                PMD_DRV_LOG(ERR,
                        "Cannot create Rx ring %d. Only %d rings available\n",
                        queue_idx, bp->max_rx_rings);
diff --git a/drivers/net/bnxt/bnxt_txq.c b/drivers/net/bnxt/bnxt_txq.c
index 6b866d445..2d7645eeb 100644
--- a/drivers/net/bnxt/bnxt_txq.c
+++ b/drivers/net/bnxt/bnxt_txq.c
@@ -90,7 +90,7 @@ int bnxt_tx_queue_setup_op(struct rte_eth_dev *eth_dev,
        if (rc)
                return rc;
 
-       if (queue_idx >= bp->max_tx_rings) {
+       if (queue_idx >= BNXT_MAX_RINGS(bp)) {
                PMD_DRV_LOG(ERR,
                        "Cannot create Tx ring %d. Only %d rings available\n",
                        queue_idx, bp->max_tx_rings);
-- 
2.23.0.rc1