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net/bnxt: check on-chip resources

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Check for availability of on-chip resources - like Queue count,
number stat context, number of ring groups before inheriting and
initializing as per application requirements.
Also check before creating a Tx or Rx queue make sure there are
enough resources to complete the request.

Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
This commit is contained in:
Ajit Khaparde 2018-01-08 12:24:37 -08:00 committed by Ferruh Yigit
parent ed5aab3d3e
commit f10d528250
3 changed files with 34 additions and 0 deletions
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20
drivers/net/bnxt/bnxt_ethdev.c
View File

@ -530,6 +530,26 @@ static int bnxt_dev_configure_op(struct rte_eth_dev *eth_dev)
bp->tx_queues = (void *)eth_dev->data->tx_queues;
/* Inherit new configurations */
if (eth_dev->data->nb_rx_queues > bp->max_rx_rings ||
eth_dev->data->nb_tx_queues > bp->max_tx_rings ||
eth_dev->data->nb_rx_queues + eth_dev->data->nb_tx_queues + 1 >
bp->max_cp_rings ||
eth_dev->data->nb_rx_queues + eth_dev->data->nb_tx_queues >
bp->max_stat_ctx ||
(uint32_t)(eth_dev->data->nb_rx_queues + 1) > bp->max_ring_grps) {
RTE_LOG(ERR, PMD,
"Insufficient resources to support requested config\n");
RTE_LOG(ERR, PMD,
"Num Queues Requested: Tx %d, Rx %d\n",
eth_dev->data->nb_tx_queues,
eth_dev->data->nb_rx_queues);
RTE_LOG(ERR, PMD,
"Res available: TxQ %d, RxQ %d, CQ %d Stat %d, Grp %d\n",
bp->max_tx_rings, bp->max_rx_rings, bp->max_cp_rings,
bp->max_stat_ctx, bp->max_ring_grps);
return -ENOSPC;
}
bp->rx_nr_rings = eth_dev->data->nb_rx_queues;
bp->tx_nr_rings = eth_dev->data->nb_tx_queues;
bp->rx_cp_nr_rings = bp->rx_nr_rings;

7
drivers/net/bnxt/bnxt_rxq.c
View File

@ -311,6 +311,13 @@ int bnxt_rx_queue_setup_op(struct rte_eth_dev *eth_dev,
struct bnxt_rx_queue *rxq;
int rc = 0;
if (queue_idx >= bp->max_rx_rings) {
RTE_LOG(ERR, PMD,
"Cannot create Rx ring %d. Only %d rings available\n",
queue_idx, bp->max_rx_rings);
return -ENOSPC;
}
if (!nb_desc || nb_desc > MAX_RX_DESC_CNT) {
RTE_LOG(ERR, PMD, "nb_desc %d is invalid\n", nb_desc);
rc = -EINVAL;

7
drivers/net/bnxt/bnxt_txq.c
View File

@ -108,6 +108,13 @@ int bnxt_tx_queue_setup_op(struct rte_eth_dev *eth_dev,
struct bnxt_tx_queue *txq;
int rc = 0;
if (queue_idx >= bp->max_tx_rings) {
RTE_LOG(ERR, PMD,
"Cannot create Tx ring %d. Only %d rings available\n",
queue_idx, bp->max_tx_rings);
return -ENOSPC;
}
if (!nb_desc || nb_desc > MAX_TX_DESC_CNT) {
RTE_LOG(ERR, PMD, "nb_desc %d is invalid", nb_desc);
rc = -EINVAL;