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Date: Sun, 16 Jun 2024 19:08:44 +0300
From: Leon Romanovsky <leon@...nel.org>
To: Jason Gunthorpe <jgg@...dia.com>
Cc: Mark Zhang <markzhang@...dia.com>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
linux-rdma@...r.kernel.org,
netdev@...r.kernel.org,
Paolo Abeni <pabeni@...hat.com>,
Saeed Mahameed <saeedm@...dia.com>,
Tariq Toukan <tariqt@...dia.com>
Subject: [PATCH mlx5-next 12/12] RDMA/mlx5: Support per-plane port IB counters by querying PPCNT register
From: Mark Zhang <markzhang@...dia.com>
Supports per-plane port counters by querying PPCNT register with the
"extended port counters" group, as the query_vport_counter command
doesn't support plane ports.
Signed-off-by: Mark Zhang <markzhang@...dia.com>
Signed-off-by: Leon Romanovsky <leonro@...dia.com>
---
drivers/infiniband/hw/mlx5/mad.c | 69 +++++++++++++++++++++++++++-----
include/linux/mlx5/device.h | 1 +
2 files changed, 59 insertions(+), 11 deletions(-)
diff --git a/drivers/infiniband/hw/mlx5/mad.c b/drivers/infiniband/hw/mlx5/mad.c
index ead836d159d3..1b6c5e37d169 100644
--- a/drivers/infiniband/hw/mlx5/mad.c
+++ b/drivers/infiniband/hw/mlx5/mad.c
@@ -147,8 +147,39 @@ static void pma_cnt_assign(struct ib_pma_portcounters *pma_cnt,
vl_15_dropped);
}
-static int query_ib_ppcnt(struct mlx5_core_dev *dev, u8 port_num, void *out,
- size_t sz)
+static void pma_cnt_ext_assign_ppcnt(struct ib_pma_portcounters_ext *cnt_ext,
+ void *out)
+{
+ void *out_pma = MLX5_ADDR_OF(ppcnt_reg, out,
+ counter_set);
+
+#define MLX5_GET_EXT_CNTR(counter_name) \
+ MLX5_GET64(ib_ext_port_cntrs_grp_data_layout, \
+ out_pma, counter_name##_high)
+
+ cnt_ext->port_xmit_data =
+ cpu_to_be64(MLX5_GET_EXT_CNTR(port_xmit_data) >> 2);
+ cnt_ext->port_rcv_data =
+ cpu_to_be64(MLX5_GET_EXT_CNTR(port_rcv_data) >> 2);
+
+ cnt_ext->port_xmit_packets =
+ cpu_to_be64(MLX5_GET_EXT_CNTR(port_xmit_pkts));
+ cnt_ext->port_rcv_packets =
+ cpu_to_be64(MLX5_GET_EXT_CNTR(port_rcv_pkts));
+
+ cnt_ext->port_unicast_xmit_packets =
+ cpu_to_be64(MLX5_GET_EXT_CNTR(port_unicast_xmit_pkts));
+ cnt_ext->port_unicast_rcv_packets =
+ cpu_to_be64(MLX5_GET_EXT_CNTR(port_unicast_rcv_pkts));
+
+ cnt_ext->port_multicast_xmit_packets =
+ cpu_to_be64(MLX5_GET_EXT_CNTR(port_multicast_xmit_pkts));
+ cnt_ext->port_multicast_rcv_packets =
+ cpu_to_be64(MLX5_GET_EXT_CNTR(port_multicast_rcv_pkts));
+}
+
+static int query_ib_ppcnt(struct mlx5_core_dev *dev, u8 port_num, u8 plane_num,
+ void *out, size_t sz, bool ext)
{
u32 *in;
int err;
@@ -160,8 +191,14 @@ static int query_ib_ppcnt(struct mlx5_core_dev *dev, u8 port_num, void *out,
}
MLX5_SET(ppcnt_reg, in, local_port, port_num);
-
- MLX5_SET(ppcnt_reg, in, grp, MLX5_INFINIBAND_PORT_COUNTERS_GROUP);
+ MLX5_SET(ppcnt_reg, in, plane_ind, plane_num);
+
+ if (ext)
+ MLX5_SET(ppcnt_reg, in, grp,
+ MLX5_INFINIBAND_EXTENDED_PORT_COUNTERS_GROUP);
+ else
+ MLX5_SET(ppcnt_reg, in, grp,
+ MLX5_INFINIBAND_PORT_COUNTERS_GROUP);
err = mlx5_core_access_reg(dev, in, sz, out,
sz, MLX5_REG_PPCNT, 0, 0);
@@ -189,7 +226,8 @@ static int process_pma_cmd(struct mlx5_ib_dev *dev, u32 port_num,
mdev_port_num = 1;
}
if (MLX5_CAP_GEN(dev->mdev, num_ports) == 1 &&
- !mlx5_core_mp_enabled(mdev)) {
+ !mlx5_core_mp_enabled(mdev) &&
+ dev->ib_dev.type != RDMA_DEVICE_TYPE_SMI) {
/* set local port to one for Function-Per-Port HCA. */
mdev = dev->mdev;
mdev_port_num = 1;
@@ -208,7 +246,8 @@ static int process_pma_cmd(struct mlx5_ib_dev *dev, u32 port_num,
if (in_mad->mad_hdr.attr_id == IB_PMA_PORT_COUNTERS_EXT) {
struct ib_pma_portcounters_ext *pma_cnt_ext =
(struct ib_pma_portcounters_ext *)(out_mad->data + 40);
- int sz = MLX5_ST_SZ_BYTES(query_vport_counter_out);
+ int sz = max(MLX5_ST_SZ_BYTES(query_vport_counter_out),
+ MLX5_ST_SZ_BYTES(ppcnt_reg));
out_cnt = kvzalloc(sz, GFP_KERNEL);
if (!out_cnt) {
@@ -216,10 +255,18 @@ static int process_pma_cmd(struct mlx5_ib_dev *dev, u32 port_num,
goto done;
}
- err = mlx5_core_query_vport_counter(mdev, 0, 0, mdev_port_num,
- out_cnt);
- if (!err)
- pma_cnt_ext_assign(pma_cnt_ext, out_cnt);
+ if (dev->ib_dev.type == RDMA_DEVICE_TYPE_SMI) {
+ err = query_ib_ppcnt(mdev, mdev_port_num,
+ port_num, out_cnt, sz, 1);
+ if (!err)
+ pma_cnt_ext_assign_ppcnt(pma_cnt_ext, out_cnt);
+ } else {
+ err = mlx5_core_query_vport_counter(mdev, 0, 0,
+ mdev_port_num,
+ out_cnt);
+ if (!err)
+ pma_cnt_ext_assign(pma_cnt_ext, out_cnt);
+ }
} else {
struct ib_pma_portcounters *pma_cnt =
(struct ib_pma_portcounters *)(out_mad->data + 40);
@@ -231,7 +278,7 @@ static int process_pma_cmd(struct mlx5_ib_dev *dev, u32 port_num,
goto done;
}
- err = query_ib_ppcnt(mdev, mdev_port_num, out_cnt, sz);
+ err = query_ib_ppcnt(mdev, mdev_port_num, 0, out_cnt, sz, 0);
if (!err)
pma_cnt_assign(pma_cnt, out_cnt);
}
diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h
index d7bb31d9a446..68bd1b4737ea 100644
--- a/include/linux/mlx5/device.h
+++ b/include/linux/mlx5/device.h
@@ -1466,6 +1466,7 @@ enum {
MLX5_PER_TRAFFIC_CLASS_CONGESTION_GROUP = 0x13,
MLX5_PHYSICAL_LAYER_STATISTICAL_GROUP = 0x16,
MLX5_INFINIBAND_PORT_COUNTERS_GROUP = 0x20,
+ MLX5_INFINIBAND_EXTENDED_PORT_COUNTERS_GROUP = 0x21,
};
enum {
--
2.45.2
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