linux-kernel - [PATCH net-next 4/4] vmxnet3: update to version 9

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Date: Tue, 14 May 2024 11:20:49 -0700
From: Ronak Doshi <ronak.doshi@...adcom.com>
To: <netdev@...r.kernel.org>
CC: Ronak Doshi <ronak.doshi@...adcom.com>, Broadcom internal kernel review
 list <bcm-kernel-feedback-list@...adcom.com>, "David S. Miller"
	<davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski
	<kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, open list
	<linux-kernel@...r.kernel.org>
Subject: [PATCH net-next 4/4] vmxnet3: update to version 9

With all vmxnet3 version 9 changes incorporated in the vmxnet3 driver,
the driver can configure emulation to run at vmxnet3 version 9, provided
the emulation advertises support for version 9.

Signed-off-by: Ronak Doshi <ronak.doshi@...adcom.com>
Acked-by: Guolin Yang <guolin.yang@...adcom.com>
---
 drivers/net/vmxnet3/vmxnet3_drv.c | 46 ++++++++-------------------------------
 drivers/net/vmxnet3/vmxnet3_int.h |  4 ++--
 2 files changed, 11 insertions(+), 39 deletions(-)

diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c
index 2eaa9204c38e..aeb7a4a4be1c 100644
--- a/drivers/net/vmxnet3/vmxnet3_drv.c
+++ b/drivers/net/vmxnet3/vmxnet3_drv.c
@@ -3952,7 +3952,7 @@ vmxnet3_probe_device(struct pci_dev *pdev,
 	struct net_device *netdev;
 	struct vmxnet3_adapter *adapter;
 	u8 mac[ETH_ALEN];
-	int size;
+	int size, i;
 	int num_tx_queues;
 	int num_rx_queues;
 	int queues;
@@ -4019,42 +4019,14 @@ vmxnet3_probe_device(struct pci_dev *pdev,
 		goto err_alloc_pci;
 
 	ver = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_VRRS);
-	if (ver & (1 << VMXNET3_REV_7)) {
-		VMXNET3_WRITE_BAR1_REG(adapter,
-				       VMXNET3_REG_VRRS,
-				       1 << VMXNET3_REV_7);
-		adapter->version = VMXNET3_REV_7 + 1;
-	} else if (ver & (1 << VMXNET3_REV_6)) {
-		VMXNET3_WRITE_BAR1_REG(adapter,
-				       VMXNET3_REG_VRRS,
-				       1 << VMXNET3_REV_6);
-		adapter->version = VMXNET3_REV_6 + 1;
-	} else if (ver & (1 << VMXNET3_REV_5)) {
-		VMXNET3_WRITE_BAR1_REG(adapter,
-				       VMXNET3_REG_VRRS,
-				       1 << VMXNET3_REV_5);
-		adapter->version = VMXNET3_REV_5 + 1;
-	} else if (ver & (1 << VMXNET3_REV_4)) {
-		VMXNET3_WRITE_BAR1_REG(adapter,
-				       VMXNET3_REG_VRRS,
-				       1 << VMXNET3_REV_4);
-		adapter->version = VMXNET3_REV_4 + 1;
-	} else if (ver & (1 << VMXNET3_REV_3)) {
-		VMXNET3_WRITE_BAR1_REG(adapter,
-				       VMXNET3_REG_VRRS,
-				       1 << VMXNET3_REV_3);
-		adapter->version = VMXNET3_REV_3 + 1;
-	} else if (ver & (1 << VMXNET3_REV_2)) {
-		VMXNET3_WRITE_BAR1_REG(adapter,
-				       VMXNET3_REG_VRRS,
-				       1 << VMXNET3_REV_2);
-		adapter->version = VMXNET3_REV_2 + 1;
-	} else if (ver & (1 << VMXNET3_REV_1)) {
-		VMXNET3_WRITE_BAR1_REG(adapter,
-				       VMXNET3_REG_VRRS,
-				       1 << VMXNET3_REV_1);
-		adapter->version = VMXNET3_REV_1 + 1;
-	} else {
+	for (i = VMXNET3_REV_9; i >= VMXNET3_REV_1; i--) {
+		if (ver & (1 << i)) {
+			VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_VRRS, 1 << i);
+			adapter->version = i + 1;
+			break;
+		}
+	}
+	if (i < VMXNET3_REV_1) {
 		dev_err(&pdev->dev,
 			"Incompatible h/w version (0x%x) for adapter\n", ver);
 		err = -EBUSY;
diff --git a/drivers/net/vmxnet3/vmxnet3_int.h b/drivers/net/vmxnet3/vmxnet3_int.h
index 31e8db568db2..9f24d66dbb27 100644
--- a/drivers/net/vmxnet3/vmxnet3_int.h
+++ b/drivers/net/vmxnet3/vmxnet3_int.h
@@ -72,12 +72,12 @@
 /*
  * Version numbers
  */
-#define VMXNET3_DRIVER_VERSION_STRING   "1.7.0.0-k"
+#define VMXNET3_DRIVER_VERSION_STRING   "1.9.0.0-k"
 
 /* Each byte of this 32-bit integer encodes a version number in
  * VMXNET3_DRIVER_VERSION_STRING.
  */
-#define VMXNET3_DRIVER_VERSION_NUM      0x01070000
+#define VMXNET3_DRIVER_VERSION_NUM      0x01090000
 
 #if defined(CONFIG_PCI_MSI)
 	/* RSS only makes sense if MSI-X is supported. */
-- 
2.11.0