From 24e77d0a9905b657239281f05d056ee295a4cea6 Mon Sep 17 00:00:00 2001
From: Ronak Doshi <doshir@vmware.com>
Date: Fri, 16 Jul 2021 15:36:22 -0700
Subject: [PATCH 3/7] vmxnet3: remove power of 2 limitation on the queues
Git-commit: 15ccf2f4b09c4443435e815b8086bc161da27e24
Patch-mainline: v5.15-rc1
References: bsc#1190406

With version 6, vmxnet3 relaxes the restriction on queues to
be power of two. This is helpful in cases (Edge VM) where
vcpus are less than 8 and device requires more than 4 queues.

Signed-off-by: Ronak Doshi <doshir@vmware.com>
Acked-by: Guolin Yang <gyang@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Denis Kirjanov <denis.kirjanov@suse.com>
---
 drivers/net/vmxnet3/vmxnet3_drv.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c
index 00e7dd7168db..d280b3728bb6 100644
--- a/drivers/net/vmxnet3/vmxnet3_drv.c
+++ b/drivers/net/vmxnet3/vmxnet3_drv.c
@@ -3402,7 +3402,6 @@ vmxnet3_probe_device(struct pci_dev *pdev,
 	else
 #endif
 		num_rx_queues = 1;
-	num_rx_queues = rounddown_pow_of_two(num_rx_queues);
 
 	if (enable_mq)
 		num_tx_queues = min(VMXNET3_DEVICE_MAX_TX_QUEUES,
@@ -3410,7 +3409,6 @@ vmxnet3_probe_device(struct pci_dev *pdev,
 	else
 		num_tx_queues = 1;
 
-	num_tx_queues = rounddown_pow_of_two(num_tx_queues);
 	netdev = alloc_etherdev_mq(sizeof(struct vmxnet3_adapter),
 				   max(num_tx_queues, num_rx_queues));
 	if (!netdev)
@@ -3528,6 +3526,8 @@ vmxnet3_probe_device(struct pci_dev *pdev,
 		}
 	} else {
 		adapter->queuesExtEnabled = false;
+		num_rx_queues = rounddown_pow_of_two(num_rx_queues);
+		num_tx_queues = rounddown_pow_of_two(num_tx_queues);
 		adapter->num_rx_queues = min(num_rx_queues,
 					     VMXNET3_DEVICE_DEFAULT_RX_QUEUES);
 		adapter->num_tx_queues = min(num_tx_queues,
@@ -3708,7 +3708,9 @@ vmxnet3_remove_device(struct pci_dev *pdev)
 	else
 #endif
 		num_rx_queues = 1;
-	num_rx_queues = rounddown_pow_of_two(num_rx_queues);
+	if (!VMXNET3_VERSION_GE_6(adapter)) {
+		num_rx_queues = rounddown_pow_of_two(num_rx_queues);
+	}
 	if (VMXNET3_VERSION_GE_6(adapter)) {
 		spin_lock_irqsave(&adapter->cmd_lock, flags);
 		VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
-- 
2.16.4