Skip to contentSkip to conversation

e1000e: display a warning message when SmartSpeed works

PATCH In review Koki Sanagi 3 participants 4 messages Jan 16, 2013

Subsystems (3)
lore
Share & tools
lore
#0 lore raw

PATCH 2/2 e1000e: display a warning message when SmartSpeed works

Current e1000e driver doesn't tell nothing when Link Speed is downgraded due to SmartSpeed. As a result, users suspect that there is something wrong with NIC. If the cause of it is SmartSpeed, there is no means to replace NIC. This patch make e1000e notify users that SmartSpeed worked.

---
 drivers/net/ethernet/intel/e1000e/netdev.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
drivers/net/ethernet/intel/e1000e/netdev.c +7 -0
index 337644d..1c416fc 100644
@@ -4435,6 +4435,13 @@ static void e1000_watchdog_task(struct work_struct *work)
 						   &adapter->link_speed,
 						   &adapter->link_duplex);
 			e1000_print_link_info(adapter);
+
+			/* check if SmartSpeed worked */
+			e1000e_check_downshift(hw);
+			if (phy->speed_downgraded)
+				netdev_warn(netdev, "Link Speed was "
+					"downgraded by SmartSpeed\n");
+
 			/* On supported PHYs, check for duplex mismatch only
 			 * if link has autonegotiated at 10/100 half
 			 */
#1 lore raw
Quoted 8 lines · Koki Sanagi

Current e1000e driver doesn't tell nothing when Link Speed is downgraded due to
SmartSpeed. As a result, users suspect that there is something wrong with
NIC. If the cause of it is SmartSpeed, there is no means to replace NIC. This
patch make e1000e notify users that SmartSpeed worked.

Quoted 4 lines
---
 drivers/net/ethernet/intel/e1000e/netdev.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-) 

Thanks, I have added this patch as well to my queue.

#2 lore raw
In reply to Koki Sanagi

drivers/net/ethernet/intel/e1000e/netdev.c static void e1000_watchdog_task(struct work_struct *work) · line 4444

Quoted 4 lines · Koki Sanagi
drivers/net/ethernet/intel/e1000e/netdev.c +4 -0
+			if (phy->speed_downgraded)
+				netdev_warn(netdev, "Link Speed was "
+					"downgraded by SmartSpeed\n");
+

Could you please avoid breaking the string both here and in the igb patch? This breaks the ability to grep for the warning.

Quoting Documentation/CodingStyle, Chapter 2:
"However, never break user-visible strings such as printk messages,
because that breaks the ability to grep for them."

Bjørn

#3 lore raw
Quoted 10 lines · Bjørn Mork

drivers/net/ethernet/intel/e1000e/netdev.c static void e1000_watchdog_task(struct work_struct *work) · line 4444

Quoted 4 lines · Koki Sanagi
drivers/net/ethernet/intel/e1000e/netdev.c +4 -0
+			if (phy->speed_downgraded)
+				netdev_warn(netdev, "Link Speed was "
+					"downgraded by SmartSpeed\n");
+

Could you please avoid breaking the string both here and in the igb patch? This breaks the ability to grep for the warning.

Quoted 6 lines

Quoting Documentation/CodingStyle, Chapter 2:
"However, never break user-visible strings such as printk messages,
because that breaks the ability to grep for them."

Bjørn

I have fixed both patches that are in my queue, since the original patches generated checkpatch.pl warnings on the strings being on 2 lines.