[dpdk-dev] [PATCH v1 02/24] net/ena: remove support of legacy LLQ

[Michal Krawczyk <mk@semihalf.com>]

From: Rafal Kozik <rk@semihalf.com>

The legacy LLQ should no longer be supported by the drivers, as this API
is deprecated. Because of that, it was removed from the driver.

Signed-off-by: Rafal Kozik <rk@semihalf.com>
Signed-off-by: Michal Krawczyk <mk@semihalf.com>
---
 drivers/net/ena/ena_ethdev.c | 29 +++++------------------------
 1 file changed, 5 insertions(+), 24 deletions(-)

diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c
index 4c90e65bd..81e36b1ef 100644
--- a/drivers/net/ena/ena_ethdev.c
+++ b/drivers/net/ena/ena_ethdev.c
@@ -1342,16 +1342,11 @@ static int eth_ena_dev_init(struct rte_eth_dev *eth_dev)
 	adapter->regs = pci_dev->mem_resource[ENA_REGS_BAR].addr;
 	adapter->dev_mem_base = pci_dev->mem_resource[ENA_MEM_BAR].addr;

-	/* Present ENA_MEM_BAR indicates available LLQ mode.
-	 * Use corresponding policy
-	 */
-	if (adapter->dev_mem_base)
-		ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_DEV;
-	else if (adapter->regs)
-		ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_HOST;
-	else
+	if (!adapter->regs) {
 		PMD_INIT_LOG(CRIT, "Failed to access registers BAR(%d)",
 			     ENA_REGS_BAR);
+		return -ENXIO;
+	}

 	ena_dev->reg_bar = adapter->regs;
 	ena_dev->dmadev = adapter->pdev;
@@ -1368,22 +1363,8 @@ static int eth_ena_dev_init(struct rte_eth_dev *eth_dev)
 		return -1;
 	}

-	if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV) {
-		if (get_feat_ctx.max_queues.max_llq_num == 0) {
-			PMD_INIT_LOG(ERR,
-				     "Trying to use LLQ but llq_num is 0.\n"
-				     "Fall back into regular queues.");
-			ena_dev->tx_mem_queue_type =
-				ENA_ADMIN_PLACEMENT_POLICY_HOST;
-			adapter->num_queues =
-				get_feat_ctx.max_queues.max_sq_num;
-		} else {
-			adapter->num_queues =
-				get_feat_ctx.max_queues.max_llq_num;
-		}
-	} else {
-		adapter->num_queues = get_feat_ctx.max_queues.max_sq_num;
-	}
+	ena_dev->tx_mem_queue_type = ENA_ADMIN_PLACEMENT_POLICY_HOST;
+	adapter->num_queues = get_feat_ctx.max_queues.max_sq_num;

 	queue_size = ena_calc_queue_size(ena_dev, &get_feat_ctx);
 	if ((queue_size <= 0) || (adapter->num_queues <= 0))
--
2.14.1