From 4b0338a7286ea5671214657db1fb71179a91929c Mon Sep 17 00:00:00 2001
From: Mark Starovoytov <mstarovoitov@marvell.com>
Date: Fri, 22 May 2020 11:19:41 +0300
Subject: [PATCH 1/8] net: atlantic: per-TC queue statistics
Patch-mainline: v5.8-rc1
Git-commit: 4272ba8b11f88be8daca5e2477bfe110145d559c
References: jsc#SLE-15148
This patch adds support for per-TC queue statistics.
By default (single TC), the output is the same as it used to be, e.g.:
Queue[0] InPackets: 2
Queue[0] OutPackets: 8
Queue[0] Restarts: 0
Queue[0] InJumboPackets: 0
Queue[0] InLroPackets: 0
Queue[0] InErrors: 0
If several TCs are enabled, then each queue statistics line is prefixed
with TC number, e.g.:
TC0 Queue[0] InPackets: 6
TC0 Queue[0] OutPackets: 11
Queue numbering is end-to-end, so:
TC1 Queue[4] InPackets: 0
TC1 Queue[4] OutPackets: 22
Signed-off-by: Mark Starovoytov <mstarovoitov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Denis Kirjanov <denis.kirjanov@suse.com>
---
.../net/ethernet/aquantia/atlantic/aq_ethtool.c | 46 ++++++++++++++--------
drivers/net/ethernet/aquantia/atlantic/aq_nic.c | 12 ++++--
drivers/net/ethernet/aquantia/atlantic/aq_vec.c | 24 ++++++-----
drivers/net/ethernet/aquantia/atlantic/aq_vec.h | 5 +--
4 files changed, 52 insertions(+), 35 deletions(-)
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c b/drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c
index a8a5ec19d1db..c07080f252a2 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c
@@ -88,13 +88,13 @@ static const char aq_ethtool_stat_names[][ETH_GSTRING_LEN] = {
"InDroppedDma",
};
-static const char aq_ethtool_queue_stat_names[][ETH_GSTRING_LEN] = {
- "Queue[%d] InPackets",
- "Queue[%d] OutPackets",
- "Queue[%d] Restarts",
- "Queue[%d] InJumboPackets",
- "Queue[%d] InLroPackets",
- "Queue[%d] InErrors",
+static const char * const aq_ethtool_queue_stat_names[] = {
+ "%sQueue[%d] InPackets",
+ "%sQueue[%d] OutPackets",
+ "%sQueue[%d] Restarts",
+ "%sQueue[%d] InJumboPackets",
+ "%sQueue[%d] InLroPackets",
+ "%sQueue[%d] InErrors",
};
static const char aq_ethtool_priv_flag_names[][ETH_GSTRING_LEN] = {
@@ -150,28 +150,40 @@ static void aq_ethtool_get_drvinfo(struct net_device *ndev,
static void aq_ethtool_get_strings(struct net_device *ndev,
u32 stringset, u8 *data)
{
- struct aq_nic_s *aq_nic = netdev_priv(ndev);
+ struct aq_nic_s *nic = netdev_priv(ndev);
struct aq_nic_cfg_s *cfg;
u8 *p = data;
int i, si;
- cfg = aq_nic_get_cfg(aq_nic);
+ cfg = aq_nic_get_cfg(nic);
switch (stringset) {
- case ETH_SS_STATS:
+ case ETH_SS_STATS: {
+ const int stat_cnt = ARRAY_SIZE(aq_ethtool_queue_stat_names);
+ char tc_string[8];
+ int tc;
+
+ memset(tc_string, 0, sizeof(tc_string));
memcpy(p, aq_ethtool_stat_names,
sizeof(aq_ethtool_stat_names));
p = p + sizeof(aq_ethtool_stat_names);
- for (i = 0; i < cfg->vecs; i++) {
- for (si = 0;
- si < ARRAY_SIZE(aq_ethtool_queue_stat_names);
- si++) {
- snprintf(p, ETH_GSTRING_LEN,
- aq_ethtool_queue_stat_names[si], i);
- p += ETH_GSTRING_LEN;
+
+ for (tc = 0; tc < cfg->tcs; tc++) {
+ if (cfg->is_qos)
+ snprintf(tc_string, 8, "TC%d ", tc);
+
+ for (i = 0; i < cfg->vecs; i++) {
+ for (si = 0; si < stat_cnt; si++) {
+ snprintf(p, ETH_GSTRING_LEN,
+ aq_ethtool_queue_stat_names[si],
+ tc_string,
+ AQ_NIC_TCVEC2RING(nic, tc, i));
+ p += ETH_GSTRING_LEN;
+ }
}
}
break;
+ }
case ETH_SS_PRIV_FLAGS:
memcpy(p, aq_ethtool_priv_flag_names,
sizeof(aq_ethtool_priv_flag_names));
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_nic.c b/drivers/net/ethernet/aquantia/atlantic/aq_nic.c
index 5a0b42ffa099..76d4e1ad50e9 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_nic.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_nic.c
@@ -848,6 +848,7 @@ void aq_nic_get_stats(struct aq_nic_s *self, u64 *data)
struct aq_stats_s *stats;
unsigned int count = 0U;
unsigned int i = 0U;
+ unsigned int tc;
if (self->aq_fw_ops->update_stats) {
mutex_lock(&self->fwreq_mutex);
@@ -886,10 +887,13 @@ void aq_nic_get_stats(struct aq_nic_s *self, u64 *data)
data += i;
- for (i = 0U, aq_vec = self->aq_vec[0];
- aq_vec && self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i]) {
- data += count;
- aq_vec_get_sw_stats(aq_vec, data, &count);
+ for (tc = 0U; tc < self->aq_nic_cfg.tcs; tc++) {
+ for (i = 0U, aq_vec = self->aq_vec[0];
+ aq_vec && self->aq_vecs > i;
+ ++i, aq_vec = self->aq_vec[i]) {
+ data += count;
+ aq_vec_get_sw_stats(aq_vec, tc, data, &count);
+ }
}
err_exit:;
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_vec.c b/drivers/net/ethernet/aquantia/atlantic/aq_vec.c
index d5650cd6e236..41826c10700f 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_vec.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_vec.c
@@ -348,16 +348,14 @@ cpumask_t *aq_vec_get_affinity_mask(struct aq_vec_s *self)
return &self->aq_ring_param.affinity_mask;
}
-void aq_vec_add_stats(struct aq_vec_s *self,
- struct aq_ring_stats_rx_s *stats_rx,
- struct aq_ring_stats_tx_s *stats_tx)
+static void aq_vec_add_stats(struct aq_vec_s *self,
+ const unsigned int tc,
+ struct aq_ring_stats_rx_s *stats_rx,
+ struct aq_ring_stats_tx_s *stats_tx)
{
- struct aq_ring_s *ring = NULL;
- unsigned int r = 0U;
+ struct aq_ring_s *ring = self->ring[tc];
- for (r = 0U, ring = self->ring[0];
- self->tx_rings > r; ++r, ring = self->ring[r]) {
- struct aq_ring_stats_tx_s *tx = &ring[AQ_VEC_TX_ID].stats.tx;
+ if (tc < self->rx_rings) {
struct aq_ring_stats_rx_s *rx = &ring[AQ_VEC_RX_ID].stats.rx;
stats_rx->packets += rx->packets;
@@ -368,6 +366,10 @@ void aq_vec_add_stats(struct aq_vec_s *self,
stats_rx->pg_losts += rx->pg_losts;
stats_rx->pg_flips += rx->pg_flips;
stats_rx->pg_reuses += rx->pg_reuses;
+ }
+
+ if (tc < self->tx_rings) {
+ struct aq_ring_stats_tx_s *tx = &ring[AQ_VEC_TX_ID].stats.tx;
stats_tx->packets += tx->packets;
stats_tx->bytes += tx->bytes;
@@ -376,7 +378,8 @@ void aq_vec_add_stats(struct aq_vec_s *self,
}
}
-int aq_vec_get_sw_stats(struct aq_vec_s *self, u64 *data, unsigned int *p_count)
+int aq_vec_get_sw_stats(struct aq_vec_s *self, const unsigned int tc, u64 *data,
+ unsigned int *p_count)
{
struct aq_ring_stats_rx_s stats_rx;
struct aq_ring_stats_tx_s stats_tx;
@@ -384,7 +387,8 @@ int aq_vec_get_sw_stats(struct aq_vec_s *self, u64 *data, unsigned int *p_count)
memset(&stats_rx, 0U, sizeof(struct aq_ring_stats_rx_s));
memset(&stats_tx, 0U, sizeof(struct aq_ring_stats_tx_s));
- aq_vec_add_stats(self, &stats_rx, &stats_tx);
+
+ aq_vec_add_stats(self, tc, &stats_rx, &stats_tx);
/* This data should mimic aq_ethtool_queue_stat_names structure
*/
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_vec.h b/drivers/net/ethernet/aquantia/atlantic/aq_vec.h
index 0ee86b26df8a..541af85e6510 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_vec.h
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_vec.h
@@ -35,10 +35,7 @@ void aq_vec_ring_free(struct aq_vec_s *self);
int aq_vec_start(struct aq_vec_s *self);
void aq_vec_stop(struct aq_vec_s *self);
cpumask_t *aq_vec_get_affinity_mask(struct aq_vec_s *self);
-int aq_vec_get_sw_stats(struct aq_vec_s *self, u64 *data,
+int aq_vec_get_sw_stats(struct aq_vec_s *self, const unsigned int tc, u64 *data,
unsigned int *p_count);
-void aq_vec_add_stats(struct aq_vec_s *self,
- struct aq_ring_stats_rx_s *stats_rx,
- struct aq_ring_stats_tx_s *stats_tx);
#endif /* AQ_VEC_H */
--
2.16.4