netdev - [PATCH net] be2net: perform temperature query in adapter regardless of its interface state

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Date:	Tue, 26 Jul 2016 17:39:42 -0300
From:	"Guilherme G. Piccoli" <gpiccoli@...ux.vnet.ibm.com>
To:	sathya.perla@...adcom.com, ajit.khaparde@...adcom.com,
	padmanabh.ratnakar@...adcom.com,
	sriharsha.basavapatna@...adcom.com, somnath.kotur@...adcom.com
Cc:	netdev@...r.kernel.org
Subject: [PATCH net] be2net: perform temperature query in adapter regardless of  its interface state

The be2net driver performs fw temperature queries on be_worker() routine,
which is executed each second for each be_adapter. There is a frequency
threshold to avoid fw query to happens at each call to be_worker();
instead, currently a fw query occurs once in 64 runs of the procedure.

Nevertheless, this fw temperature query is invoked only for adapters which
interface is up, so we can see I/O errors on read of hwmon counters from
userspace (from tools like lm-sensors) in case we have adapters' functions
which interface is down.

This patch moves the fw query code to be invoked even if interface is down.
No functional changes were introduced.

Signed-off-by: Guilherme G. Piccoli <gpiccoli@...ux.vnet.ibm.com>
---
 drivers/net/ethernet/emulex/benet/be_main.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index ed98ef1..706fdfa 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -4996,6 +4996,10 @@ static void be_worker(struct work_struct *work)
 	struct be_rx_obj *rxo;
 	int i;
 
+	if (be_physfn(adapter) &&
+	    MODULO(adapter->work_counter, adapter->be_get_temp_freq) == 0)
+		be_cmd_get_die_temperature(adapter);
+
 	/* when interrupts are not yet enabled, just reap any pending
 	 * mcc completions
 	 */
@@ -5014,10 +5018,6 @@ static void be_worker(struct work_struct *work)
 			be_cmd_get_stats(adapter, &adapter->stats_cmd);
 	}
 
-	if (be_physfn(adapter) &&
-	    MODULO(adapter->work_counter, adapter->be_get_temp_freq) == 0)
-		be_cmd_get_die_temperature(adapter);
-
 	for_all_rx_queues(adapter, rxo, i) {
 		/* Replenish RX-queues starved due to memory
 		 * allocation failures.
-- 
2.1.0