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RDMA/bnxt_re: Support perf management counters

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Add support for process_mad hook to retrieve the perf management counters.
Supports IB_PMA_PORT_COUNTERS and IB_PMA_PORT_COUNTERS_EXT counters.
Query the data from HW contexts and FW commands.

Signed-off-by: Preethi G <preethi.gurusiddalingeswaraswamy@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://patch.msgid.link/1741855464-27921-1-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Preethi G
2025-03-13 01:44:24 -07:00
committed by Leon Romanovsky
parent 86ab05366b
commit d9d5c8ed98
5 changed files with 139 additions and 0 deletions
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4
drivers/infiniband/hw/bnxt_re/bnxt_re.h
View File

@@ -246,6 +246,10 @@ struct bnxt_re_dev {
#define BNXT_RE_CHECK_RC(x) ((x) && ((x) != -ETIMEDOUT))
void bnxt_re_pacing_alert(struct bnxt_re_dev *rdev);
int bnxt_re_assign_pma_port_counters(struct bnxt_re_dev *rdev, struct ib_mad *out_mad);
int bnxt_re_assign_pma_port_ext_counters(struct bnxt_re_dev *rdev,
struct ib_mad *out_mad);
static inline struct device *rdev_to_dev(struct bnxt_re_dev *rdev)
{
if (rdev)

92
drivers/infiniband/hw/bnxt_re/hw_counters.c
View File

@@ -39,6 +39,8 @@
#include <linux/types.h>
#include <linux/pci.h>
#include <rdma/ib_mad.h>
#include <rdma/ib_pma.h>
#include "roce_hsi.h"
#include "qplib_res.h"
@@ -285,6 +287,96 @@ static void bnxt_re_copy_db_pacing_stats(struct bnxt_re_dev *rdev,
readl(rdev->en_dev->bar0 + rdev->pacing.dbr_db_fifo_reg_off);
}
int bnxt_re_assign_pma_port_ext_counters(struct bnxt_re_dev *rdev, struct ib_mad *out_mad)
{
struct ib_pma_portcounters_ext *pma_cnt_ext;
struct bnxt_qplib_ext_stat *estat = &rdev->stats.rstat.ext_stat;
struct ctx_hw_stats *hw_stats = NULL;
int rc;
hw_stats = rdev->qplib_ctx.stats.dma;
pma_cnt_ext = (struct ib_pma_portcounters_ext *)(out_mad->data + 40);
if (_is_ext_stats_supported(rdev->dev_attr->dev_cap_flags)) {
u32 fid = PCI_FUNC(rdev->en_dev->pdev->devfn);
rc = bnxt_qplib_qext_stat(&rdev->rcfw, fid, estat);
if (rc)
return rc;
}
pma_cnt_ext = (struct ib_pma_portcounters_ext *)(out_mad->data + 40);
if ((bnxt_qplib_is_chip_gen_p5(rdev->chip_ctx) && rdev->is_virtfn) ||
!bnxt_qplib_is_chip_gen_p5(rdev->chip_ctx)) {
pma_cnt_ext->port_xmit_data =
cpu_to_be64(le64_to_cpu(hw_stats->tx_ucast_bytes) / 4);
pma_cnt_ext->port_rcv_data =
cpu_to_be64(le64_to_cpu(hw_stats->rx_ucast_bytes) / 4);
pma_cnt_ext->port_xmit_packets =
cpu_to_be64(le64_to_cpu(hw_stats->tx_ucast_pkts));
pma_cnt_ext->port_rcv_packets =
cpu_to_be64(le64_to_cpu(hw_stats->rx_ucast_pkts));
pma_cnt_ext->port_unicast_rcv_packets =
cpu_to_be64(le64_to_cpu(hw_stats->rx_ucast_pkts));
pma_cnt_ext->port_unicast_xmit_packets =
cpu_to_be64(le64_to_cpu(hw_stats->tx_ucast_pkts));
} else {
pma_cnt_ext->port_rcv_packets = cpu_to_be64(estat->rx_roce_good_pkts);
pma_cnt_ext->port_rcv_data = cpu_to_be64(estat->rx_roce_good_bytes / 4);
pma_cnt_ext->port_xmit_packets = cpu_to_be64(estat->tx_roce_pkts);
pma_cnt_ext->port_xmit_data = cpu_to_be64(estat->tx_roce_bytes / 4);
pma_cnt_ext->port_unicast_rcv_packets = cpu_to_be64(estat->rx_roce_good_pkts);
pma_cnt_ext->port_unicast_xmit_packets = cpu_to_be64(estat->tx_roce_pkts);
}
return 0;
}
int bnxt_re_assign_pma_port_counters(struct bnxt_re_dev *rdev, struct ib_mad *out_mad)
{
struct bnxt_qplib_ext_stat *estat = &rdev->stats.rstat.ext_stat;
struct ib_pma_portcounters *pma_cnt;
struct ctx_hw_stats *hw_stats = NULL;
int rc;
hw_stats = rdev->qplib_ctx.stats.dma;
pma_cnt = (struct ib_pma_portcounters *)(out_mad->data + 40);
if (_is_ext_stats_supported(rdev->dev_attr->dev_cap_flags)) {
u32 fid = PCI_FUNC(rdev->en_dev->pdev->devfn);
rc = bnxt_qplib_qext_stat(&rdev->rcfw, fid, estat);
if (rc)
return rc;
}
if ((bnxt_qplib_is_chip_gen_p5(rdev->chip_ctx) && rdev->is_virtfn) ||
!bnxt_qplib_is_chip_gen_p5(rdev->chip_ctx)) {
pma_cnt->port_rcv_packets =
cpu_to_be32((u32)(le64_to_cpu(hw_stats->rx_ucast_pkts)) & 0xFFFFFFFF);
pma_cnt->port_rcv_data =
cpu_to_be32((u32)((le64_to_cpu(hw_stats->rx_ucast_bytes) &
0xFFFFFFFF) / 4));
pma_cnt->port_xmit_packets =
cpu_to_be32((u32)(le64_to_cpu(hw_stats->tx_ucast_pkts)) & 0xFFFFFFFF);
pma_cnt->port_xmit_data =
cpu_to_be32((u32)((le64_to_cpu(hw_stats->tx_ucast_bytes)
& 0xFFFFFFFF) / 4));
} else {
pma_cnt->port_rcv_packets = cpu_to_be32(estat->rx_roce_good_pkts);
pma_cnt->port_rcv_data = cpu_to_be32((estat->rx_roce_good_bytes / 4));
pma_cnt->port_xmit_packets = cpu_to_be32(estat->tx_roce_pkts);
pma_cnt->port_xmit_data = cpu_to_be32((estat->tx_roce_bytes / 4));
}
pma_cnt->port_rcv_constraint_errors = (u8)(le64_to_cpu(hw_stats->rx_discard_pkts) & 0xFF);
pma_cnt->port_rcv_errors = cpu_to_be16((u16)(le64_to_cpu(hw_stats->rx_error_pkts)
& 0xFFFF));
pma_cnt->port_xmit_constraint_errors = (u8)(le64_to_cpu(hw_stats->tx_error_pkts) & 0xFF);
pma_cnt->port_xmit_discards = cpu_to_be16((u16)(le64_to_cpu(hw_stats->tx_discard_pkts)
& 0xFFFF));
return 0;
}
int bnxt_re_ib_get_hw_stats(struct ib_device *ibdev,
struct rdma_hw_stats *stats,
u32 port, int index)

36
drivers/infiniband/hw/bnxt_re/ib_verbs.c
View File

@@ -49,6 +49,7 @@
#include <rdma/ib_addr.h>
#include <rdma/ib_mad.h>
#include <rdma/ib_cache.h>
#include <rdma/ib_pma.h>
#include <rdma/uverbs_ioctl.h>
#include <linux/hashtable.h>
@@ -4489,6 +4490,41 @@ void bnxt_re_mmap_free(struct rdma_user_mmap_entry *rdma_entry)
kfree(bnxt_entry);
}
int bnxt_re_process_mad(struct ib_device *ibdev, int mad_flags,
u32 port_num, const struct ib_wc *in_wc,
const struct ib_grh *in_grh,
const struct ib_mad *in_mad, struct ib_mad *out_mad,
size_t *out_mad_size, u16 *out_mad_pkey_index)
{
struct bnxt_re_dev *rdev = to_bnxt_re_dev(ibdev, ibdev);
struct ib_class_port_info cpi = {};
int ret = IB_MAD_RESULT_SUCCESS;
int rc = 0;
if (in_mad->mad_hdr.mgmt_class != IB_MGMT_CLASS_PERF_MGMT)
return ret;
switch (in_mad->mad_hdr.attr_id) {
case IB_PMA_CLASS_PORT_INFO:
cpi.capability_mask = IB_PMA_CLASS_CAP_EXT_WIDTH;
memcpy((out_mad->data + 40), &cpi, sizeof(cpi));
break;
case IB_PMA_PORT_COUNTERS_EXT:
rc = bnxt_re_assign_pma_port_ext_counters(rdev, out_mad);
break;
case IB_PMA_PORT_COUNTERS:
rc = bnxt_re_assign_pma_port_counters(rdev, out_mad);
break;
default:
rc = -EINVAL;
break;
}
if (rc)
return IB_MAD_RESULT_FAILURE;
ret |= IB_MAD_RESULT_REPLY;
return ret;
}
static int UVERBS_HANDLER(BNXT_RE_METHOD_NOTIFY_DRV)(struct uverbs_attr_bundle *attrs)
{
struct bnxt_re_ucontext *uctx;

6
drivers/infiniband/hw/bnxt_re/ib_verbs.h
View File

@@ -268,6 +268,12 @@ void bnxt_re_dealloc_ucontext(struct ib_ucontext *context);
int bnxt_re_mmap(struct ib_ucontext *context, struct vm_area_struct *vma);
void bnxt_re_mmap_free(struct rdma_user_mmap_entry *rdma_entry);
int bnxt_re_process_mad(struct ib_device *device, int process_mad_flags,
u32 port_num, const struct ib_wc *in_wc,
const struct ib_grh *in_grh,
const struct ib_mad *in_mad, struct ib_mad *out_mad,
size_t *out_mad_size, u16 *out_mad_pkey_index);
static inline u32 __to_ib_port_num(u16 port_id)
{
return (u32)port_id + 1;

1
drivers/infiniband/hw/bnxt_re/main.c
View File

@@ -1276,6 +1276,7 @@ static const struct ib_device_ops bnxt_re_dev_ops = {
.post_recv = bnxt_re_post_recv,
.post_send = bnxt_re_post_send,
.post_srq_recv = bnxt_re_post_srq_recv,
.process_mad = bnxt_re_process_mad,
.query_ah = bnxt_re_query_ah,
.query_device = bnxt_re_query_device,
.modify_device = bnxt_re_modify_device,