From 32d26a685c1802a0e485bd674e7dd038e88019f7 Mon Sep 17 00:00:00 2001 From: Sudarsana Reddy Kalluru Date: Tue, 29 May 2018 02:31:24 -0700 Subject: [PATCH] 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 Signed-off-by: Ariel Elior Signed-off-by: David S. Miller --- 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 1c0d0c217936..eed4725761f5 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_l2.c +++ b/drivers/net/ethernet/qlogic/qed/qed_l2.c @@ -1854,6 +1854,11 @@ 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, @@ -1961,11 +1966,14 @@ 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 81c5c8dfa2ef..d7ed0d3dbf71 100644 --- a/drivers/net/ethernet/qlogic/qede/qede.h +++ b/drivers/net/ethernet/qlogic/qede/qede.h @@ -88,6 +88,7 @@ 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 6906e04b609e..f4a0f8ff8261 100644 --- a/drivers/net/ethernet/qlogic/qede/qede_ethtool.c +++ b/drivers/net/ethernet/qlogic/qede/qede_ethtool.c @@ -171,6 +171,8 @@ static const struct { 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 d118771e1a7b..6a796040a32c 100644 --- a/drivers/net/ethernet/qlogic/qede/qede_main.c +++ b/drivers/net/ethernet/qlogic/qede/qede_main.c @@ -399,6 +399,7 @@ 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 ac991a3b8f03..b4040023cbfb 100644 --- a/include/linux/qed/qed_if.h +++ b/include/linux/qed/qed_if.h @@ -1180,6 +1180,7 @@ 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 {