net: aquantia: Update hw counters on hw init

On very first start we should read out current HW counter values
to make diff based calculations later.
This also should be done each time NIC gets down/up or wakes up
after sleep state. We reset link state explicitly to prevent diffs
from being summed this first time.

Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.c b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.c
index b0abd187cead95a34da01d2b07f54e5bf30726cb..f18dce14c93cfa89f5c091db5f5b06c6e882aa68 100644 (file)
--- a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.c
+++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.c
@@ -344,6 +344,10 @@ static int hw_atl_a0_hw_init(struct aq_hw_s *self,
        hw_atl_a0_hw_rss_set(self, &aq_nic_cfg->aq_rss);
        hw_atl_a0_hw_rss_hash_set(self, &aq_nic_cfg->aq_rss);
 
+       /* Reset link status and read out initial hardware counters */
+       self->aq_link_status.mbps = 0;
+       hw_atl_utils_update_stats(self);
+
        err = aq_hw_err_from_flags(self);
        if (err < 0)
                goto err_exit;

diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c
index 36fddb199160b064f0d2c38363eb7e192437ed2c..e4a22ce7bf09d50f21ffed6425783d7be7c88da5 100644 (file)
--- a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c
+++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c
@@ -397,6 +397,10 @@ static int hw_atl_b0_hw_init(struct aq_hw_s *self,
         */
        aq_hw_write_reg(self, tx_dma_total_req_limit_adr, 24);
 
+       /* Reset link status and read out initial hardware counters */
+       self->aq_link_status.mbps = 0;
+       hw_atl_utils_update_stats(self);
+
        err = aq_hw_err_from_flags(self);
        if (err < 0)
                goto err_exit;