[PATCH net v3 6/9] net: aquantia: Improve link state and statistics check interval callback

[Igor Russkikh]

Reduce timeout from 2 secs to 1 sec. If link is down,
reduce it to 500msec. This speeds up link detection.

Signed-off-by: Igor Russkikh <igor.russk...@aquantia.com>
---
 drivers/net/ethernet/aquantia/atlantic/aq_cfg.h | 2 +-
 drivers/net/ethernet/aquantia/atlantic/aq_nic.c | 7 +++++--
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_cfg.h 
b/drivers/net/ethernet/aquantia/atlantic/aq_cfg.h
index 57e7968..73b93a7 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_cfg.h
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_cfg.h
@@ -50,7 +50,7 @@
 #define AQ_CFG_PCI_FUNC_MSIX_IRQS   9U
 #define AQ_CFG_PCI_FUNC_PORTS       2U
 
-#define AQ_CFG_SERVICE_TIMER_INTERVAL    (2 * HZ)
+#define AQ_CFG_SERVICE_TIMER_INTERVAL    (1 * HZ)
 #define AQ_CFG_POLLING_TIMER_INTERVAL   ((unsigned int)(2 * HZ))
 
 #define AQ_CFG_SKB_FRAGS_MAX   32U
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_nic.c 
b/drivers/net/ethernet/aquantia/atlantic/aq_nic.c
index b3a5d1f..75a894a 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_nic.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_nic.c
@@ -168,6 +168,7 @@ static int aq_nic_update_link_status(struct aq_nic_s *self)
 static void aq_nic_service_timer_cb(struct timer_list *t)
 {
        struct aq_nic_s *self = from_timer(self, t, service_timer);
+       int ctimer = AQ_CFG_SERVICE_TIMER_INTERVAL;
        int err = 0;
 
        if (aq_utils_obj_test(&self->header.flags, AQ_NIC_FLAGS_IS_NOT_READY))
@@ -182,10 +183,12 @@ static void aq_nic_service_timer_cb(struct timer_list *t)
 
        aq_nic_update_ndev_stats(self);
 
+       /* If no link - use faster timer rate to detect link up asap */
+       if (!netif_carrier_ok(self->ndev))
+               ctimer = max(ctimer / 2, 1);
 
 err_exit:
-       mod_timer(&self->service_timer,
-                 jiffies + AQ_CFG_SERVICE_TIMER_INTERVAL);
+       mod_timer(&self->service_timer, jiffies + ctimer);
 }
 
 static void aq_nic_polling_timer_cb(struct timer_list *t)
-- 
2.7.4