First, we add a new command to query hardware statistics, and then
implement two functions: ib_device_ops.alloc_hw_port_stats and
ib_device_ops.get_hw_stats to allow rdma tool can get the statistics
of erdma device.
Signed-off-by: Cheng Xu <chengyou@xxxxxxxxxxxxxxxxx>
---
drivers/infiniband/hw/erdma/erdma_hw.h | 37 ++++++++++
drivers/infiniband/hw/erdma/erdma_main.c | 2 +
drivers/infiniband/hw/erdma/erdma_verbs.c | 90 +++++++++++++++++++++++
drivers/infiniband/hw/erdma/erdma_verbs.h | 4 +
4 files changed, 133 insertions(+)
diff --git a/drivers/infiniband/hw/erdma/erdma_hw.h b/drivers/infiniband/hw/erdma/erdma_hw.h
index 4baabf1f2b08..ed8e3940cf4c 100644
--- a/drivers/infiniband/hw/erdma/erdma_hw.h
+++ b/drivers/infiniband/hw/erdma/erdma_hw.h
@@ -146,6 +146,7 @@ enum CMDQ_COMMON_OPCODE {
CMDQ_OPCODE_DESTROY_EQ = 1,
CMDQ_OPCODE_QUERY_FW_INFO = 2,
CMDQ_OPCODE_CONF_MTU = 3,
+ CMDQ_OPCODE_GET_STATS = 4,
CMDQ_OPCODE_CONF_DEVICE = 5,
CMDQ_OPCODE_ALLOC_DB = 8,
CMDQ_OPCODE_FREE_DB = 9,
@@ -359,6 +360,42 @@ struct erdma_cmdq_reflush_req {
#define ERDMA_HW_RESP_SIZE 256
+struct erdma_cmdq_query_req {
+ u64 hdr;
+ u32 rsvd;
+ u32 index;
+
+ u64 target_addr;
+ u32 target_length;
+};
+
+#define ERDMA_HW_RESP_MAGIC 0x5566
+
+struct erdma_cmdq_query_resp_hdr {
+ u16 magic;
+ u8 ver;
+ u8 length;
+
+ u32 index;
+ u32 rsvd[2];
+};
+
+struct erdma_cmdq_query_stats_resp {
+ struct erdma_cmdq_query_resp_hdr hdr;
+
+ u64 tx_req_cnt;
+ u64 tx_packets_cnt;
+ u64 tx_bytes_cnt;
+ u64 tx_drop_packets_cnt;
+ u64 tx_bps_meter_drop_packets_cnt;
+ u64 tx_pps_meter_drop_packets_cnt;
+ u64 rx_packets_cnt;
+ u64 rx_bytes_cnt;
+ u64 rx_drop_packets_cnt;
+ u64 rx_bps_meter_drop_packets_cnt;
+ u64 rx_pps_meter_drop_packets_cnt;
+};
+
/* cap qword 0 definition */
#define ERDMA_CMD_DEV_CAP_MAX_CQE_MASK GENMASK_ULL(47, 40)
#define ERDMA_CMD_DEV_CAP_FLAGS_MASK GENMASK_ULL(31, 24)
diff --git a/drivers/infiniband/hw/erdma/erdma_main.c b/drivers/infiniband/hw/erdma/erdma_main.c
index e4df5bf89cd0..472939172f0c 100644
--- a/drivers/infiniband/hw/erdma/erdma_main.c
+++ b/drivers/infiniband/hw/erdma/erdma_main.c
@@ -468,6 +468,7 @@ static const struct ib_device_ops erdma_device_ops = {
.driver_id = RDMA_DRIVER_ERDMA,
.uverbs_abi_ver = ERDMA_ABI_VERSION,
+ .alloc_hw_port_stats = erdma_alloc_hw_port_stats,
.alloc_mr = erdma_ib_alloc_mr,
.alloc_pd = erdma_alloc_pd,
.alloc_ucontext = erdma_alloc_ucontext,
@@ -479,6 +480,7 @@ static const struct ib_device_ops erdma_device_ops = {
.destroy_cq = erdma_destroy_cq,
.destroy_qp = erdma_destroy_qp,
.get_dma_mr = erdma_get_dma_mr,
+ .get_hw_stats = erdma_get_hw_stats,
.get_port_immutable = erdma_get_port_immutable,
.iw_accept = erdma_accept,
.iw_add_ref = erdma_qp_get_ref,
diff --git a/drivers/infiniband/hw/erdma/erdma_verbs.c b/drivers/infiniband/hw/erdma/erdma_verbs.c
index c317947563fb..23dfc01603f8 100644
--- a/drivers/infiniband/hw/erdma/erdma_verbs.c
+++ b/drivers/infiniband/hw/erdma/erdma_verbs.c
@@ -1708,3 +1708,93 @@ void erdma_port_event(struct erdma_dev *dev, enum ib_event_type reason)
ib_dispatch_event(&event);
}
+
+enum counters {
+ ERDMA_STATS_TX_REQS_CNT,
+ ERDMA_STATS_TX_PACKETS_CNT,
+ ERDMA_STATS_TX_BYTES_CNT,
+ ERDMA_STATS_TX_DISABLE_DROP_CNT,
+ ERDMA_STATS_TX_BPS_METER_DROP_CNT,
+ ERDMA_STATS_TX_PPS_METER_DROP_CNT,
+
+ ERDMA_STATS_RX_PACKETS_CNT,
+ ERDMA_STATS_RX_BYTES_CNT,
+ ERDMA_STATS_RX_DISABLE_DROP_CNT,
+ ERDMA_STATS_RX_BPS_METER_DROP_CNT,
+ ERDMA_STATS_RX_PPS_METER_DROP_CNT,
+
+ ERDMA_STATS_MAX
+};
+
+static const struct rdma_stat_desc erdma_descs[] = {
+ [ERDMA_STATS_TX_REQS_CNT].name = "tx_reqs_cnt",
+ [ERDMA_STATS_TX_PACKETS_CNT].name = "tx_packets_cnt",
+ [ERDMA_STATS_TX_BYTES_CNT].name = "tx_bytes_cnt",
+ [ERDMA_STATS_TX_DISABLE_DROP_CNT].name = "tx_disable_drop_cnt",
+ [ERDMA_STATS_TX_BPS_METER_DROP_CNT].name = "tx_bps_limit_drop_cnt",
+ [ERDMA_STATS_TX_PPS_METER_DROP_CNT].name = "tx_pps_limit_drop_cnt",
+ [ERDMA_STATS_RX_PACKETS_CNT].name = "rx_packets_cnt",
+ [ERDMA_STATS_RX_BYTES_CNT].name = "rx_bytes_cnt",
+ [ERDMA_STATS_RX_DISABLE_DROP_CNT].name = "rx_disable_drop_cnt",
+ [ERDMA_STATS_RX_BPS_METER_DROP_CNT].name = "rx_bps_limit_drop_cnt",
+ [ERDMA_STATS_RX_PPS_METER_DROP_CNT].name = "rx_pps_limit_drop_cnt",
+};
+
+struct rdma_hw_stats *erdma_alloc_hw_port_stats(struct ib_device *device,
+ u32 port_num)
+{
+ return rdma_alloc_hw_stats_struct(erdma_descs, ERDMA_STATS_MAX,
+ RDMA_HW_STATS_DEFAULT_LIFESPAN);
+}
+
+static int erdma_query_hw_stats(struct erdma_dev *dev,
+ struct rdma_hw_stats *stats)
+{
+ struct erdma_cmdq_query_stats_resp *resp;
+ struct erdma_cmdq_query_req req;
+ dma_addr_t dma_addr;
+ int err;
+
+ erdma_cmdq_build_reqhdr(&req.hdr, CMDQ_SUBMOD_COMMON,
+ CMDQ_OPCODE_GET_STATS);
+
+ resp = dma_pool_zalloc(dev->resp_pool, GFP_KERNEL, &dma_addr);
+ if (!resp)
+ return -ENOMEM;
+
+ req.target_addr = dma_addr;
+ req.target_length = ERDMA_HW_RESP_SIZE;
+
+ err = erdma_post_cmd_wait(&dev->cmdq, &req, sizeof(req), NULL, NULL);
+ if (err)
+ goto out;
+
+ if (resp->hdr.magic != ERDMA_HW_RESP_MAGIC) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ memcpy(&stats->value[0], &resp->tx_req_cnt,
+ sizeof(u64) * stats->num_counters);
+
+out:
+ dma_pool_free(dev->resp_pool, resp, dma_addr);
+
+ return err;
+}
+
+int erdma_get_hw_stats(struct ib_device *ibdev, struct rdma_hw_stats *stats,
+ u32 port, int index)
+{
+ struct erdma_dev *dev = to_edev(ibdev);
+ int ret;
+
+ if (port == 0)
+ return 0;
+
+ ret = erdma_query_hw_stats(dev, stats);
+ if (ret)
+ return ret;
+
+ return stats->num_counters;
+}
diff --git a/drivers/infiniband/hw/erdma/erdma_verbs.h b/drivers/infiniband/hw/erdma/erdma_verbs.h
index eb9c0f92fb6f..db6018529ccc 100644
--- a/drivers/infiniband/hw/erdma/erdma_verbs.h
+++ b/drivers/infiniband/hw/erdma/erdma_verbs.h
@@ -361,5 +361,9 @@ int erdma_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents,
unsigned int *sg_offset);
void erdma_port_event(struct erdma_dev *dev, enum ib_event_type reason);
void erdma_set_mtu(struct erdma_dev *dev, u32 mtu);
+struct rdma_hw_stats *erdma_alloc_hw_port_stats(struct ib_device *device,
+ u32 port_num);
+int erdma_get_hw_stats(struct ib_device *ibdev, struct rdma_hw_stats *stats,
+ u32 port, int index);
#endif
--
2.31.1
