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Message-ID: <20180529093124.22950-1-sudarsana.kalluru@cavium.com>
Date: Tue, 29 May 2018 02:31:24 -0700
From: Sudarsana Reddy Kalluru <sudarsana.kalluru@...ium.com>
To: <davem@...emloft.net>
CC: <netdev@...r.kernel.org>, <ariel.elior@...ium.com>
Subject: [PATCH net-next 1/1] qed*: Add link change count value to ethtool statistics display.
This patch adds driver changes for capturing the link change count in
ethtool statistics display.
Please consider applying this to "net-next".
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@...ium.com>
Signed-off-by: Ariel Elior <ariel.elior@...ium.com>
---
drivers/net/ethernet/qlogic/qed/qed_l2.c | 12 ++++++++++--
drivers/net/ethernet/qlogic/qede/qede.h | 1 +
drivers/net/ethernet/qlogic/qede/qede_ethtool.c | 2 ++
drivers/net/ethernet/qlogic/qede/qede_main.c | 1 +
include/linux/qed/qed_if.h | 1 +
5 files changed, 15 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/qlogic/qed/qed_l2.c b/drivers/net/ethernet/qlogic/qed/qed_l2.c
index 5e655c3..1e0254a 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_l2.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_l2.c
@@ -1852,6 +1852,11 @@ static void __qed_get_vport_port_stats(struct qed_hwfn *p_hwfn,
p_ah->tx_1519_to_max_byte_packets =
port_stats.eth.u1.ah1.t1519_to_max;
}
+
+ p_common->link_change_count = qed_rd(p_hwfn, p_ptt,
+ p_hwfn->mcp_info->port_addr +
+ offsetof(struct public_port,
+ link_change_count));
}
static void __qed_get_vport_stats(struct qed_hwfn *p_hwfn,
@@ -1959,11 +1964,14 @@ void qed_reset_vport_stats(struct qed_dev *cdev)
/* PORT statistics are not necessarily reset, so we need to
* read and create a baseline for future statistics.
+ * Link change stat is maintained by MFW, return its value as is.
*/
- if (!cdev->reset_stats)
+ if (!cdev->reset_stats) {
DP_INFO(cdev, "Reset stats not allocated\n");
- else
+ } else {
_qed_get_vport_stats(cdev, cdev->reset_stats);
+ cdev->reset_stats->common.link_change_count = 0;
+ }
}
static enum gft_profile_type
diff --git a/drivers/net/ethernet/qlogic/qede/qede.h b/drivers/net/ethernet/qlogic/qede/qede.h
index 2d3f09e..df791e2 100644
--- a/drivers/net/ethernet/qlogic/qede/qede.h
+++ b/drivers/net/ethernet/qlogic/qede/qede.h
@@ -87,6 +87,7 @@ struct qede_stats_common {
u64 coalesced_aborts_num;
u64 non_coalesced_pkts;
u64 coalesced_bytes;
+ u64 link_change_count;
/* port */
u64 rx_64_byte_packets;
diff --git a/drivers/net/ethernet/qlogic/qede/qede_ethtool.c b/drivers/net/ethernet/qlogic/qede/qede_ethtool.c
index 8c6fdad..f374e18 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_ethtool.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_ethtool.c
@@ -170,6 +170,8 @@
QEDE_STAT(coalesced_aborts_num),
QEDE_STAT(non_coalesced_pkts),
QEDE_STAT(coalesced_bytes),
+
+ QEDE_STAT(link_change_count),
};
#define QEDE_NUM_STATS ARRAY_SIZE(qede_stats_arr)
diff --git a/drivers/net/ethernet/qlogic/qede/qede_main.c b/drivers/net/ethernet/qlogic/qede/qede_main.c
index 9e70f71..cbfe892 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_main.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_main.c
@@ -398,6 +398,7 @@ void qede_fill_by_demand_stats(struct qede_dev *edev)
p_common->brb_truncates = stats.common.brb_truncates;
p_common->brb_discards = stats.common.brb_discards;
p_common->tx_mac_ctrl_frames = stats.common.tx_mac_ctrl_frames;
+ p_common->link_change_count = stats.common.link_change_count;
if (QEDE_IS_BB(edev)) {
struct qede_stats_bb *p_bb = &edev->stats.bb;
diff --git a/include/linux/qed/qed_if.h b/include/linux/qed/qed_if.h
index 44af652..4444491 100644
--- a/include/linux/qed/qed_if.h
+++ b/include/linux/qed/qed_if.h
@@ -1179,6 +1179,7 @@ struct qed_eth_stats_common {
u64 tx_mac_mc_packets;
u64 tx_mac_bc_packets;
u64 tx_mac_ctrl_frames;
+ u64 link_change_count;
};
struct qed_eth_stats_bb {
--
1.8.3.1
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