diff mbox series

[v1,net-next] vmxnet3: support higher link speeds from vmxnet3 v9

Message ID 20241004174303.5370-1-ronak.doshi@broadcom.com (mailing list archive)
State Accepted
Commit 0458cbedfe35a2762fc82ddf38e004cc886b9ed4
Delegated to: Netdev Maintainers
Headers show
Series [v1,net-next] vmxnet3: support higher link speeds from vmxnet3 v9 | expand

Checks

Context Check Description
netdev/series_format success Single patches do not need cover letters
netdev/tree_selection success Clearly marked for net-next
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 6 this patch: 6
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers success CCed 6 of 6 maintainers
netdev/build_clang success Errors and warnings before: 6 this patch: 6
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 19 this patch: 19
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 14 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0
netdev/contest success net-next-2024-10-06--15-00 (tests: 775)

Commit Message

Ronak Doshi Oct. 4, 2024, 5:43 p.m. UTC 
Until now, vmxnet3 was default reporting 10Gbps as link speed.
Vmxnet3 v9 adds support for user to configure higher link speeds.
User can configure the link speed via VMs advanced parameters options
in VCenter. This speed is reported in gbps by hypervisor.

This patch adds support for vmxnet3 to report higher link speeds and
converts it to mbps as expected by Linux stack.

Signed-off-by: Ronak Doshi <ronak.doshi@broadcom.com>
Acked-by: Guolin Yang <guolin.yang@broadcom.com>
---
Changes in v1:
  - Add a comment to explain the changes
---
 drivers/net/vmxnet3/vmxnet3_drv.c | 8 ++++++++
 1 file changed, 8 insertions(+)

Comments

Simon Horman Oct. 7, 2024, 3:18 p.m. UTC | #1 
On Fri, Oct 04, 2024 at 10:43:03AM -0700, Ronak Doshi wrote:
> Until now, vmxnet3 was default reporting 10Gbps as link speed.
> Vmxnet3 v9 adds support for user to configure higher link speeds.
> User can configure the link speed via VMs advanced parameters options
> in VCenter. This speed is reported in gbps by hypervisor.
> 
> This patch adds support for vmxnet3 to report higher link speeds and
> converts it to mbps as expected by Linux stack.
> 
> Signed-off-by: Ronak Doshi <ronak.doshi@broadcom.com>
> Acked-by: Guolin Yang <guolin.yang@broadcom.com>
> ---
> Changes in v1:
>   - Add a comment to explain the changes

Thanks for the update.

Reviewed-by: Simon Horman <horms@kernel.org>

...
patchwork-bot+netdevbpf@kernel.org Oct. 8, 2024, 12:10 a.m. UTC | #2 
Hello:

This patch was applied to netdev/net-next.git (main)
by Jakub Kicinski <kuba@kernel.org>:

On Fri, 4 Oct 2024 10:43:03 -0700 you wrote:
> Until now, vmxnet3 was default reporting 10Gbps as link speed.
> Vmxnet3 v9 adds support for user to configure higher link speeds.
> User can configure the link speed via VMs advanced parameters options
> in VCenter. This speed is reported in gbps by hypervisor.
> 
> This patch adds support for vmxnet3 to report higher link speeds and
> converts it to mbps as expected by Linux stack.
> 
> [...]

Here is the summary with links:
  - [v1,net-next] vmxnet3: support higher link speeds from vmxnet3 v9
    https://git.kernel.org/netdev/net-next/c/0458cbedfe35

You are awesome, thank you!
diff mbox series

Patch

diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c
index b70654c7ad34..6793fa09f9d1 100644
--- a/drivers/net/vmxnet3/vmxnet3_drv.c
+++ b/drivers/net/vmxnet3/vmxnet3_drv.c
@@ -201,6 +201,14 @@  vmxnet3_check_link(struct vmxnet3_adapter *adapter, bool affectTxQueue)
 
 	adapter->link_speed = ret >> 16;
 	if (ret & 1) { /* Link is up. */
+		/*
+		 * From vmxnet3 v9, the hypervisor reports the speed in Gbps.
+		 * Convert the speed to Mbps before rporting it to the kernel.
+		 * Max link speed supported is 10000G.
+		 */
+		if (VMXNET3_VERSION_GE_9(adapter) &&
+		    adapter->link_speed < 10000)
+			adapter->link_speed = adapter->link_speed * 1000;
 		netdev_info(adapter->netdev, "NIC Link is Up %d Mbps\n",
 			    adapter->link_speed);
 		netif_carrier_on(adapter->netdev);