From: Sameeh Jubran <sameehj@amazon.com>
Date: Sun, 6 Oct 2019 15:33:24 +0300
Subject: net: ena: multiple queue creation related cleanups
Patch-mainline: v5.5-rc1
Git-commit: 4d19266022ec4814add8d5f02f49cb493294c674
References: bsc#1154492

- Rename ena_calc_queue_size() to ena_calc_io_queue_size() for clarity
  and consistency
- Remove redundant number of io queues parameter in functions
  ena_enable_msix() and ena_enable_msix_and_set_admin_interrupts(),
  which already get adapter parameter, so use adapter->num_io_queues
  in the function instead.
- Use the local variable ena_dev instead of ctx->ena_dev in
  ena_calc_io_queue_size
- Fix multi row comment alignments

Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: Sameeh Jubran <sameehj@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/amazon/ena/ena_netdev.c |   31 +++++++++------------------
 1 file changed, 11 insertions(+), 20 deletions(-)

--- a/drivers/net/ethernet/amazon/ena/ena_netdev.c
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c
@@ -1331,7 +1331,7 @@ static irqreturn_t ena_intr_msix_io(int
  * the number of potential io queues is the minimum of what the device
  * supports and the number of vCPUs.
  */
-static int ena_enable_msix(struct ena_adapter *adapter, int num_queues)
+static int ena_enable_msix(struct ena_adapter *adapter)
 {
 	int msix_vecs, irq_cnt;
 
@@ -1342,7 +1342,7 @@ static int ena_enable_msix(struct ena_ad
 	}
 
 	/* Reserved the max msix vectors we might need */
-	msix_vecs = ENA_MAX_MSIX_VEC(num_queues);
+	msix_vecs = ENA_MAX_MSIX_VEC(adapter->num_io_queues);
 	netif_dbg(adapter, probe, adapter->netdev,
 		  "trying to enable MSI-X, vectors %d\n", msix_vecs);
 
@@ -2682,14 +2682,13 @@ err_mmio_read_less:
 	return rc;
 }
 
-static int ena_enable_msix_and_set_admin_interrupts(struct ena_adapter *adapter,
-						    int io_vectors)
+static int ena_enable_msix_and_set_admin_interrupts(struct ena_adapter *adapter)
 {
 	struct ena_com_dev *ena_dev = adapter->ena_dev;
 	struct device *dev = &adapter->pdev->dev;
 	int rc;
 
-	rc = ena_enable_msix(adapter, io_vectors);
+	rc = ena_enable_msix(adapter);
 	if (rc) {
 		dev_err(dev, "Can not reserve msix vectors\n");
 		return rc;
@@ -2782,8 +2781,7 @@ static int ena_restore_device(struct ena
 		goto err_device_destroy;
 	}
 
-	rc = ena_enable_msix_and_set_admin_interrupts(adapter,
-						      adapter->num_io_queues);
+	rc = ena_enable_msix_and_set_admin_interrupts(adapter);
 	if (rc) {
 		dev_err(&pdev->dev, "Enable MSI-X failed\n");
 		goto err_device_destroy;
@@ -3349,7 +3347,7 @@ static void set_default_llq_configuratio
 	llq_config->llq_ring_entry_size_value = 128;
 }
 
-static int ena_calc_queue_size(struct ena_calc_queue_size_ctx *ctx)
+static int ena_calc_io_queue_size(struct ena_calc_queue_size_ctx *ctx)
 {
 	struct ena_admin_feature_llq_desc *llq = &ctx->get_feat_ctx->llq;
 	struct ena_com_dev *ena_dev = ctx->ena_dev;
@@ -3358,7 +3356,7 @@ static int ena_calc_queue_size(struct en
 	u32 max_tx_queue_size;
 	u32 max_rx_queue_size;
 
-	if (ctx->ena_dev->supported_features & BIT(ENA_ADMIN_MAX_QUEUES_EXT)) {
+	if (ena_dev->supported_features & BIT(ENA_ADMIN_MAX_QUEUES_EXT)) {
 		struct ena_admin_queue_ext_feature_fields *max_queue_ext =
 			&ctx->get_feat_ctx->max_queue_ext.max_queue_ext;
 		max_rx_queue_size = min_t(u32, max_queue_ext->max_rx_cq_depth,
@@ -3497,25 +3495,18 @@ static int ena_probe(struct pci_dev *pde
 	calc_queue_ctx.pdev = pdev;
 
 	/* Initial Tx and RX interrupt delay. Assumes 1 usec granularity.
-	* Updated during device initialization with the real granularity
-	*/
+	 * Updated during device initialization with the real granularity
+	 */
 	ena_dev->intr_moder_tx_interval = ENA_INTR_INITIAL_TX_INTERVAL_USECS;
 	ena_dev->intr_moder_rx_interval = ENA_INTR_INITIAL_RX_INTERVAL_USECS;
 	ena_dev->intr_delay_resolution = ENA_DEFAULT_INTR_DELAY_RESOLUTION;
 	io_queue_num = ena_calc_io_queue_num(pdev, ena_dev, &get_feat_ctx);
-	rc = ena_calc_queue_size(&calc_queue_ctx);
+	rc = ena_calc_io_queue_size(&calc_queue_ctx);
 	if (rc || io_queue_num <= 0) {
 		rc = -EFAULT;
 		goto err_device_destroy;
 	}
 
-	dev_info(&pdev->dev, "creating %d io queues. rx queue size: %d tx queue size. %d LLQ is %s\n",
-		 io_queue_num,
-		 calc_queue_ctx.rx_queue_size,
-		 calc_queue_ctx.tx_queue_size,
-		 (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV) ?
-		 "ENABLED" : "DISABLED");
-
 	/* dev zeroed in init_etherdev */
 	netdev = alloc_etherdev_mq(sizeof(struct ena_adapter), io_queue_num);
 	if (!netdev) {
@@ -3569,7 +3560,7 @@ static int ena_probe(struct pci_dev *pde
 
 	u64_stats_init(&adapter->syncp);
 
-	rc = ena_enable_msix_and_set_admin_interrupts(adapter, io_queue_num);
+	rc = ena_enable_msix_and_set_admin_interrupts(adapter);
 	if (rc) {
 		dev_err(&pdev->dev,
 			"Failed to enable and set the admin interrupts\n");
