Add the rt linux 4.1.3-rt3 as base
[kvmfornfv.git] / kernel / drivers / infiniband / hw / ocrdma / ocrdma_stats.c
diff --git a/kernel/drivers/infiniband/hw/ocrdma/ocrdma_stats.c b/kernel/drivers/infiniband/hw/ocrdma/ocrdma_stats.c
new file mode 100644 (file)
index 0000000..48d7ef5
--- /dev/null
@@ -0,0 +1,857 @@
+/*******************************************************************
+ * This file is part of the Emulex RoCE Device Driver for          *
+ * RoCE (RDMA over Converged Ethernet) adapters.                   *
+ * Copyright (C) 2008-2014 Emulex. All rights reserved.            *
+ * EMULEX and SLI are trademarks of Emulex.                        *
+ * www.emulex.com                                                  *
+ *                                                                 *
+ * This program is free software; you can redistribute it and/or   *
+ * modify it under the terms of version 2 of the GNU General       *
+ * Public License as published by the Free Software Foundation.    *
+ * This program is distributed in the hope that it will be useful. *
+ * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
+ * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
+ * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
+ * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
+ * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
+ * more details, a copy of which can be found in the file COPYING  *
+ * included with this package.                                     *
+ *
+ * Contact Information:
+ * linux-drivers@emulex.com
+ *
+ * Emulex
+ * 3333 Susan Street
+ * Costa Mesa, CA 92626
+ *******************************************************************/
+
+#include <rdma/ib_addr.h>
+#include <rdma/ib_pma.h>
+#include "ocrdma_stats.h"
+
+static struct dentry *ocrdma_dbgfs_dir;
+
+static int ocrdma_add_stat(char *start, char *pcur,
+                               char *name, u64 count)
+{
+       char buff[128] = {0};
+       int cpy_len = 0;
+
+       snprintf(buff, 128, "%s: %llu\n", name, count);
+       cpy_len = strlen(buff);
+
+       if (pcur + cpy_len > start + OCRDMA_MAX_DBGFS_MEM) {
+               pr_err("%s: No space in stats buff\n", __func__);
+               return 0;
+       }
+
+       memcpy(pcur, buff, cpy_len);
+       return cpy_len;
+}
+
+static bool ocrdma_alloc_stats_mem(struct ocrdma_dev *dev)
+{
+       struct stats_mem *mem = &dev->stats_mem;
+
+       /* Alloc mbox command mem*/
+       mem->size = max_t(u32, sizeof(struct ocrdma_rdma_stats_req),
+                       sizeof(struct ocrdma_rdma_stats_resp));
+
+       mem->va   = dma_alloc_coherent(&dev->nic_info.pdev->dev, mem->size,
+                                        &mem->pa, GFP_KERNEL);
+       if (!mem->va) {
+               pr_err("%s: stats mbox allocation failed\n", __func__);
+               return false;
+       }
+
+       memset(mem->va, 0, mem->size);
+
+       /* Alloc debugfs mem */
+       mem->debugfs_mem = kzalloc(OCRDMA_MAX_DBGFS_MEM, GFP_KERNEL);
+       if (!mem->debugfs_mem) {
+               pr_err("%s: stats debugfs mem allocation failed\n", __func__);
+               return false;
+       }
+
+       return true;
+}
+
+static void ocrdma_release_stats_mem(struct ocrdma_dev *dev)
+{
+       struct stats_mem *mem = &dev->stats_mem;
+
+       if (mem->va)
+               dma_free_coherent(&dev->nic_info.pdev->dev, mem->size,
+                                 mem->va, mem->pa);
+       kfree(mem->debugfs_mem);
+}
+
+static char *ocrdma_resource_stats(struct ocrdma_dev *dev)
+{
+       char *stats = dev->stats_mem.debugfs_mem, *pcur;
+       struct ocrdma_rdma_stats_resp *rdma_stats =
+                       (struct ocrdma_rdma_stats_resp *)dev->stats_mem.va;
+       struct ocrdma_rsrc_stats *rsrc_stats = &rdma_stats->act_rsrc_stats;
+
+       memset(stats, 0, (OCRDMA_MAX_DBGFS_MEM));
+
+       pcur = stats;
+       pcur += ocrdma_add_stat(stats, pcur, "active_dpp_pds",
+                               (u64)rsrc_stats->dpp_pds);
+       pcur += ocrdma_add_stat(stats, pcur, "active_non_dpp_pds",
+                               (u64)rsrc_stats->non_dpp_pds);
+       pcur += ocrdma_add_stat(stats, pcur, "active_rc_dpp_qps",
+                               (u64)rsrc_stats->rc_dpp_qps);
+       pcur += ocrdma_add_stat(stats, pcur, "active_uc_dpp_qps",
+                               (u64)rsrc_stats->uc_dpp_qps);
+       pcur += ocrdma_add_stat(stats, pcur, "active_ud_dpp_qps",
+                               (u64)rsrc_stats->ud_dpp_qps);
+       pcur += ocrdma_add_stat(stats, pcur, "active_rc_non_dpp_qps",
+                               (u64)rsrc_stats->rc_non_dpp_qps);
+       pcur += ocrdma_add_stat(stats, pcur, "active_uc_non_dpp_qps",
+                               (u64)rsrc_stats->uc_non_dpp_qps);
+       pcur += ocrdma_add_stat(stats, pcur, "active_ud_non_dpp_qps",
+                               (u64)rsrc_stats->ud_non_dpp_qps);
+       pcur += ocrdma_add_stat(stats, pcur, "active_srqs",
+                               (u64)rsrc_stats->srqs);
+       pcur += ocrdma_add_stat(stats, pcur, "active_rbqs",
+                               (u64)rsrc_stats->rbqs);
+       pcur += ocrdma_add_stat(stats, pcur, "active_64K_nsmr",
+                               (u64)rsrc_stats->r64K_nsmr);
+       pcur += ocrdma_add_stat(stats, pcur, "active_64K_to_2M_nsmr",
+                               (u64)rsrc_stats->r64K_to_2M_nsmr);
+       pcur += ocrdma_add_stat(stats, pcur, "active_2M_to_44M_nsmr",
+                               (u64)rsrc_stats->r2M_to_44M_nsmr);
+       pcur += ocrdma_add_stat(stats, pcur, "active_44M_to_1G_nsmr",
+                               (u64)rsrc_stats->r44M_to_1G_nsmr);
+       pcur += ocrdma_add_stat(stats, pcur, "active_1G_to_4G_nsmr",
+                               (u64)rsrc_stats->r1G_to_4G_nsmr);
+       pcur += ocrdma_add_stat(stats, pcur, "active_nsmr_count_4G_to_32G",
+                               (u64)rsrc_stats->nsmr_count_4G_to_32G);
+       pcur += ocrdma_add_stat(stats, pcur, "active_32G_to_64G_nsmr",
+                               (u64)rsrc_stats->r32G_to_64G_nsmr);
+       pcur += ocrdma_add_stat(stats, pcur, "active_64G_to_128G_nsmr",
+                               (u64)rsrc_stats->r64G_to_128G_nsmr);
+       pcur += ocrdma_add_stat(stats, pcur, "active_128G_to_higher_nsmr",
+                               (u64)rsrc_stats->r128G_to_higher_nsmr);
+       pcur += ocrdma_add_stat(stats, pcur, "active_embedded_nsmr",
+                               (u64)rsrc_stats->embedded_nsmr);
+       pcur += ocrdma_add_stat(stats, pcur, "active_frmr",
+                               (u64)rsrc_stats->frmr);
+       pcur += ocrdma_add_stat(stats, pcur, "active_prefetch_qps",
+                               (u64)rsrc_stats->prefetch_qps);
+       pcur += ocrdma_add_stat(stats, pcur, "active_ondemand_qps",
+                               (u64)rsrc_stats->ondemand_qps);
+       pcur += ocrdma_add_stat(stats, pcur, "active_phy_mr",
+                               (u64)rsrc_stats->phy_mr);
+       pcur += ocrdma_add_stat(stats, pcur, "active_mw",
+                               (u64)rsrc_stats->mw);
+
+       /* Print the threshold stats */
+       rsrc_stats = &rdma_stats->th_rsrc_stats;
+
+       pcur += ocrdma_add_stat(stats, pcur, "threshold_dpp_pds",
+                               (u64)rsrc_stats->dpp_pds);
+       pcur += ocrdma_add_stat(stats, pcur, "threshold_non_dpp_pds",
+                               (u64)rsrc_stats->non_dpp_pds);
+       pcur += ocrdma_add_stat(stats, pcur, "threshold_rc_dpp_qps",
+                               (u64)rsrc_stats->rc_dpp_qps);
+       pcur += ocrdma_add_stat(stats, pcur, "threshold_uc_dpp_qps",
+                               (u64)rsrc_stats->uc_dpp_qps);
+       pcur += ocrdma_add_stat(stats, pcur, "threshold_ud_dpp_qps",
+                               (u64)rsrc_stats->ud_dpp_qps);
+       pcur += ocrdma_add_stat(stats, pcur, "threshold_rc_non_dpp_qps",
+                               (u64)rsrc_stats->rc_non_dpp_qps);
+       pcur += ocrdma_add_stat(stats, pcur, "threshold_uc_non_dpp_qps",
+                               (u64)rsrc_stats->uc_non_dpp_qps);
+       pcur += ocrdma_add_stat(stats, pcur, "threshold_ud_non_dpp_qps",
+                               (u64)rsrc_stats->ud_non_dpp_qps);
+       pcur += ocrdma_add_stat(stats, pcur, "threshold_srqs",
+                               (u64)rsrc_stats->srqs);
+       pcur += ocrdma_add_stat(stats, pcur, "threshold_rbqs",
+                               (u64)rsrc_stats->rbqs);
+       pcur += ocrdma_add_stat(stats, pcur, "threshold_64K_nsmr",
+                               (u64)rsrc_stats->r64K_nsmr);
+       pcur += ocrdma_add_stat(stats, pcur, "threshold_64K_to_2M_nsmr",
+                               (u64)rsrc_stats->r64K_to_2M_nsmr);
+       pcur += ocrdma_add_stat(stats, pcur, "threshold_2M_to_44M_nsmr",
+                               (u64)rsrc_stats->r2M_to_44M_nsmr);
+       pcur += ocrdma_add_stat(stats, pcur, "threshold_44M_to_1G_nsmr",
+                               (u64)rsrc_stats->r44M_to_1G_nsmr);
+       pcur += ocrdma_add_stat(stats, pcur, "threshold_1G_to_4G_nsmr",
+                               (u64)rsrc_stats->r1G_to_4G_nsmr);
+       pcur += ocrdma_add_stat(stats, pcur, "threshold_nsmr_count_4G_to_32G",
+                               (u64)rsrc_stats->nsmr_count_4G_to_32G);
+       pcur += ocrdma_add_stat(stats, pcur, "threshold_32G_to_64G_nsmr",
+                               (u64)rsrc_stats->r32G_to_64G_nsmr);
+       pcur += ocrdma_add_stat(stats, pcur, "threshold_64G_to_128G_nsmr",
+                               (u64)rsrc_stats->r64G_to_128G_nsmr);
+       pcur += ocrdma_add_stat(stats, pcur, "threshold_128G_to_higher_nsmr",
+                               (u64)rsrc_stats->r128G_to_higher_nsmr);
+       pcur += ocrdma_add_stat(stats, pcur, "threshold_embedded_nsmr",
+                               (u64)rsrc_stats->embedded_nsmr);
+       pcur += ocrdma_add_stat(stats, pcur, "threshold_frmr",
+                               (u64)rsrc_stats->frmr);
+       pcur += ocrdma_add_stat(stats, pcur, "threshold_prefetch_qps",
+                               (u64)rsrc_stats->prefetch_qps);
+       pcur += ocrdma_add_stat(stats, pcur, "threshold_ondemand_qps",
+                               (u64)rsrc_stats->ondemand_qps);
+       pcur += ocrdma_add_stat(stats, pcur, "threshold_phy_mr",
+                               (u64)rsrc_stats->phy_mr);
+       pcur += ocrdma_add_stat(stats, pcur, "threshold_mw",
+                               (u64)rsrc_stats->mw);
+       return stats;
+}
+
+static char *ocrdma_rx_stats(struct ocrdma_dev *dev)
+{
+       char *stats = dev->stats_mem.debugfs_mem, *pcur;
+       struct ocrdma_rdma_stats_resp *rdma_stats =
+               (struct ocrdma_rdma_stats_resp *)dev->stats_mem.va;
+       struct ocrdma_rx_stats *rx_stats = &rdma_stats->rx_stats;
+
+       memset(stats, 0, (OCRDMA_MAX_DBGFS_MEM));
+
+       pcur = stats;
+       pcur += ocrdma_add_stat
+               (stats, pcur, "roce_frame_bytes",
+                convert_to_64bit(rx_stats->roce_frame_bytes_lo,
+                rx_stats->roce_frame_bytes_hi));
+       pcur += ocrdma_add_stat(stats, pcur, "roce_frame_icrc_drops",
+                               (u64)rx_stats->roce_frame_icrc_drops);
+       pcur += ocrdma_add_stat(stats, pcur, "roce_frame_payload_len_drops",
+                               (u64)rx_stats->roce_frame_payload_len_drops);
+       pcur += ocrdma_add_stat(stats, pcur, "ud_drops",
+                               (u64)rx_stats->ud_drops);
+       pcur += ocrdma_add_stat(stats, pcur, "qp1_drops",
+                               (u64)rx_stats->qp1_drops);
+       pcur += ocrdma_add_stat(stats, pcur, "psn_error_request_packets",
+                               (u64)rx_stats->psn_error_request_packets);
+       pcur += ocrdma_add_stat(stats, pcur, "psn_error_resp_packets",
+                               (u64)rx_stats->psn_error_resp_packets);
+       pcur += ocrdma_add_stat(stats, pcur, "rnr_nak_timeouts",
+                               (u64)rx_stats->rnr_nak_timeouts);
+       pcur += ocrdma_add_stat(stats, pcur, "rnr_nak_receives",
+                               (u64)rx_stats->rnr_nak_receives);
+       pcur += ocrdma_add_stat(stats, pcur, "roce_frame_rxmt_drops",
+                               (u64)rx_stats->roce_frame_rxmt_drops);
+       pcur += ocrdma_add_stat(stats, pcur, "nak_count_psn_sequence_errors",
+                               (u64)rx_stats->nak_count_psn_sequence_errors);
+       pcur += ocrdma_add_stat(stats, pcur, "rc_drop_count_lookup_errors",
+                               (u64)rx_stats->rc_drop_count_lookup_errors);
+       pcur += ocrdma_add_stat(stats, pcur, "rq_rnr_naks",
+                               (u64)rx_stats->rq_rnr_naks);
+       pcur += ocrdma_add_stat(stats, pcur, "srq_rnr_naks",
+                               (u64)rx_stats->srq_rnr_naks);
+       pcur += ocrdma_add_stat(stats, pcur, "roce_frames",
+                               convert_to_64bit(rx_stats->roce_frames_lo,
+                                                rx_stats->roce_frames_hi));
+
+       return stats;
+}
+
+static u64 ocrdma_sysfs_rcv_pkts(struct ocrdma_dev *dev)
+{
+       struct ocrdma_rdma_stats_resp *rdma_stats =
+               (struct ocrdma_rdma_stats_resp *)dev->stats_mem.va;
+       struct ocrdma_rx_stats *rx_stats = &rdma_stats->rx_stats;
+
+       return convert_to_64bit(rx_stats->roce_frames_lo,
+               rx_stats->roce_frames_hi) + (u64)rx_stats->roce_frame_icrc_drops
+               + (u64)rx_stats->roce_frame_payload_len_drops;
+}
+
+static u64 ocrdma_sysfs_rcv_data(struct ocrdma_dev *dev)
+{
+       struct ocrdma_rdma_stats_resp *rdma_stats =
+               (struct ocrdma_rdma_stats_resp *)dev->stats_mem.va;
+       struct ocrdma_rx_stats *rx_stats = &rdma_stats->rx_stats;
+
+       return (convert_to_64bit(rx_stats->roce_frame_bytes_lo,
+               rx_stats->roce_frame_bytes_hi))/4;
+}
+
+static char *ocrdma_tx_stats(struct ocrdma_dev *dev)
+{
+       char *stats = dev->stats_mem.debugfs_mem, *pcur;
+       struct ocrdma_rdma_stats_resp *rdma_stats =
+               (struct ocrdma_rdma_stats_resp *)dev->stats_mem.va;
+       struct ocrdma_tx_stats *tx_stats = &rdma_stats->tx_stats;
+
+       memset(stats, 0, (OCRDMA_MAX_DBGFS_MEM));
+
+       pcur = stats;
+       pcur += ocrdma_add_stat(stats, pcur, "send_pkts",
+                               convert_to_64bit(tx_stats->send_pkts_lo,
+                                                tx_stats->send_pkts_hi));
+       pcur += ocrdma_add_stat(stats, pcur, "write_pkts",
+                               convert_to_64bit(tx_stats->write_pkts_lo,
+                                                tx_stats->write_pkts_hi));
+       pcur += ocrdma_add_stat(stats, pcur, "read_pkts",
+                               convert_to_64bit(tx_stats->read_pkts_lo,
+                                                tx_stats->read_pkts_hi));
+       pcur += ocrdma_add_stat(stats, pcur, "read_rsp_pkts",
+                               convert_to_64bit(tx_stats->read_rsp_pkts_lo,
+                                                tx_stats->read_rsp_pkts_hi));
+       pcur += ocrdma_add_stat(stats, pcur, "ack_pkts",
+                               convert_to_64bit(tx_stats->ack_pkts_lo,
+                                                tx_stats->ack_pkts_hi));
+       pcur += ocrdma_add_stat(stats, pcur, "send_bytes",
+                               convert_to_64bit(tx_stats->send_bytes_lo,
+                                                tx_stats->send_bytes_hi));
+       pcur += ocrdma_add_stat(stats, pcur, "write_bytes",
+                               convert_to_64bit(tx_stats->write_bytes_lo,
+                                                tx_stats->write_bytes_hi));
+       pcur += ocrdma_add_stat(stats, pcur, "read_req_bytes",
+                               convert_to_64bit(tx_stats->read_req_bytes_lo,
+                                                tx_stats->read_req_bytes_hi));
+       pcur += ocrdma_add_stat(stats, pcur, "read_rsp_bytes",
+                               convert_to_64bit(tx_stats->read_rsp_bytes_lo,
+                                                tx_stats->read_rsp_bytes_hi));
+       pcur += ocrdma_add_stat(stats, pcur, "ack_timeouts",
+                               (u64)tx_stats->ack_timeouts);
+
+       return stats;
+}
+
+static u64 ocrdma_sysfs_xmit_pkts(struct ocrdma_dev *dev)
+{
+       struct ocrdma_rdma_stats_resp *rdma_stats =
+               (struct ocrdma_rdma_stats_resp *)dev->stats_mem.va;
+       struct ocrdma_tx_stats *tx_stats = &rdma_stats->tx_stats;
+
+       return (convert_to_64bit(tx_stats->send_pkts_lo,
+                                tx_stats->send_pkts_hi) +
+       convert_to_64bit(tx_stats->write_pkts_lo, tx_stats->write_pkts_hi) +
+       convert_to_64bit(tx_stats->read_pkts_lo, tx_stats->read_pkts_hi) +
+       convert_to_64bit(tx_stats->read_rsp_pkts_lo,
+                        tx_stats->read_rsp_pkts_hi) +
+       convert_to_64bit(tx_stats->ack_pkts_lo, tx_stats->ack_pkts_hi));
+}
+
+static u64 ocrdma_sysfs_xmit_data(struct ocrdma_dev *dev)
+{
+       struct ocrdma_rdma_stats_resp *rdma_stats =
+               (struct ocrdma_rdma_stats_resp *)dev->stats_mem.va;
+       struct ocrdma_tx_stats *tx_stats = &rdma_stats->tx_stats;
+
+       return (convert_to_64bit(tx_stats->send_bytes_lo,
+                                tx_stats->send_bytes_hi) +
+               convert_to_64bit(tx_stats->write_bytes_lo,
+                                tx_stats->write_bytes_hi) +
+               convert_to_64bit(tx_stats->read_req_bytes_lo,
+                                tx_stats->read_req_bytes_hi) +
+               convert_to_64bit(tx_stats->read_rsp_bytes_lo,
+                                tx_stats->read_rsp_bytes_hi))/4;
+}
+
+static char *ocrdma_wqe_stats(struct ocrdma_dev *dev)
+{
+       char *stats = dev->stats_mem.debugfs_mem, *pcur;
+       struct ocrdma_rdma_stats_resp *rdma_stats =
+               (struct ocrdma_rdma_stats_resp *)dev->stats_mem.va;
+       struct ocrdma_wqe_stats *wqe_stats = &rdma_stats->wqe_stats;
+
+       memset(stats, 0, (OCRDMA_MAX_DBGFS_MEM));
+
+       pcur = stats;
+       pcur += ocrdma_add_stat(stats, pcur, "large_send_rc_wqes",
+               convert_to_64bit(wqe_stats->large_send_rc_wqes_lo,
+                                wqe_stats->large_send_rc_wqes_hi));
+       pcur += ocrdma_add_stat(stats, pcur, "large_write_rc_wqes",
+               convert_to_64bit(wqe_stats->large_write_rc_wqes_lo,
+                                wqe_stats->large_write_rc_wqes_hi));
+       pcur += ocrdma_add_stat(stats, pcur, "read_wqes",
+                               convert_to_64bit(wqe_stats->read_wqes_lo,
+                                                wqe_stats->read_wqes_hi));
+       pcur += ocrdma_add_stat(stats, pcur, "frmr_wqes",
+                               convert_to_64bit(wqe_stats->frmr_wqes_lo,
+                                                wqe_stats->frmr_wqes_hi));
+       pcur += ocrdma_add_stat(stats, pcur, "mw_bind_wqes",
+                               convert_to_64bit(wqe_stats->mw_bind_wqes_lo,
+                                                wqe_stats->mw_bind_wqes_hi));
+       pcur += ocrdma_add_stat(stats, pcur, "invalidate_wqes",
+               convert_to_64bit(wqe_stats->invalidate_wqes_lo,
+                                wqe_stats->invalidate_wqes_hi));
+       pcur += ocrdma_add_stat(stats, pcur, "dpp_wqe_drops",
+                               (u64)wqe_stats->dpp_wqe_drops);
+       return stats;
+}
+
+static char *ocrdma_db_errstats(struct ocrdma_dev *dev)
+{
+       char *stats = dev->stats_mem.debugfs_mem, *pcur;
+       struct ocrdma_rdma_stats_resp *rdma_stats =
+               (struct ocrdma_rdma_stats_resp *)dev->stats_mem.va;
+       struct ocrdma_db_err_stats *db_err_stats = &rdma_stats->db_err_stats;
+
+       memset(stats, 0, (OCRDMA_MAX_DBGFS_MEM));
+
+       pcur = stats;
+       pcur += ocrdma_add_stat(stats, pcur, "sq_doorbell_errors",
+                               (u64)db_err_stats->sq_doorbell_errors);
+       pcur += ocrdma_add_stat(stats, pcur, "cq_doorbell_errors",
+                               (u64)db_err_stats->cq_doorbell_errors);
+       pcur += ocrdma_add_stat(stats, pcur, "rq_srq_doorbell_errors",
+                               (u64)db_err_stats->rq_srq_doorbell_errors);
+       pcur += ocrdma_add_stat(stats, pcur, "cq_overflow_errors",
+                               (u64)db_err_stats->cq_overflow_errors);
+       return stats;
+}
+
+static char *ocrdma_rxqp_errstats(struct ocrdma_dev *dev)
+{
+       char *stats = dev->stats_mem.debugfs_mem, *pcur;
+       struct ocrdma_rdma_stats_resp *rdma_stats =
+               (struct ocrdma_rdma_stats_resp *)dev->stats_mem.va;
+       struct ocrdma_rx_qp_err_stats *rx_qp_err_stats =
+                &rdma_stats->rx_qp_err_stats;
+
+       memset(stats, 0, (OCRDMA_MAX_DBGFS_MEM));
+
+       pcur = stats;
+       pcur += ocrdma_add_stat(stats, pcur, "nak_invalid_requst_errors",
+                       (u64)rx_qp_err_stats->nak_invalid_requst_errors);
+       pcur += ocrdma_add_stat(stats, pcur, "nak_remote_operation_errors",
+                       (u64)rx_qp_err_stats->nak_remote_operation_errors);
+       pcur += ocrdma_add_stat(stats, pcur, "nak_count_remote_access_errors",
+                       (u64)rx_qp_err_stats->nak_count_remote_access_errors);
+       pcur += ocrdma_add_stat(stats, pcur, "local_length_errors",
+                       (u64)rx_qp_err_stats->local_length_errors);
+       pcur += ocrdma_add_stat(stats, pcur, "local_protection_errors",
+                       (u64)rx_qp_err_stats->local_protection_errors);
+       pcur += ocrdma_add_stat(stats, pcur, "local_qp_operation_errors",
+                       (u64)rx_qp_err_stats->local_qp_operation_errors);
+       return stats;
+}
+
+static char *ocrdma_txqp_errstats(struct ocrdma_dev *dev)
+{
+       char *stats = dev->stats_mem.debugfs_mem, *pcur;
+       struct ocrdma_rdma_stats_resp *rdma_stats =
+               (struct ocrdma_rdma_stats_resp *)dev->stats_mem.va;
+       struct ocrdma_tx_qp_err_stats *tx_qp_err_stats =
+               &rdma_stats->tx_qp_err_stats;
+
+       memset(stats, 0, (OCRDMA_MAX_DBGFS_MEM));
+
+       pcur = stats;
+       pcur += ocrdma_add_stat(stats, pcur, "local_length_errors",
+                       (u64)tx_qp_err_stats->local_length_errors);
+       pcur += ocrdma_add_stat(stats, pcur, "local_protection_errors",
+                       (u64)tx_qp_err_stats->local_protection_errors);
+       pcur += ocrdma_add_stat(stats, pcur, "local_qp_operation_errors",
+                       (u64)tx_qp_err_stats->local_qp_operation_errors);
+       pcur += ocrdma_add_stat(stats, pcur, "retry_count_exceeded_errors",
+                       (u64)tx_qp_err_stats->retry_count_exceeded_errors);
+       pcur += ocrdma_add_stat(stats, pcur, "rnr_retry_count_exceeded_errors",
+                       (u64)tx_qp_err_stats->rnr_retry_count_exceeded_errors);
+       return stats;
+}
+
+static char *ocrdma_tx_dbg_stats(struct ocrdma_dev *dev)
+{
+       int i;
+       char *pstats = dev->stats_mem.debugfs_mem;
+       struct ocrdma_rdma_stats_resp *rdma_stats =
+               (struct ocrdma_rdma_stats_resp *)dev->stats_mem.va;
+       struct ocrdma_tx_dbg_stats *tx_dbg_stats =
+               &rdma_stats->tx_dbg_stats;
+
+       memset(pstats, 0, (OCRDMA_MAX_DBGFS_MEM));
+
+       for (i = 0; i < 100; i++)
+               pstats += snprintf(pstats, 80, "DW[%d] = 0x%x\n", i,
+                                tx_dbg_stats->data[i]);
+
+       return dev->stats_mem.debugfs_mem;
+}
+
+static char *ocrdma_rx_dbg_stats(struct ocrdma_dev *dev)
+{
+       int i;
+       char *pstats = dev->stats_mem.debugfs_mem;
+       struct ocrdma_rdma_stats_resp *rdma_stats =
+               (struct ocrdma_rdma_stats_resp *)dev->stats_mem.va;
+       struct ocrdma_rx_dbg_stats *rx_dbg_stats =
+               &rdma_stats->rx_dbg_stats;
+
+       memset(pstats, 0, (OCRDMA_MAX_DBGFS_MEM));
+
+       for (i = 0; i < 200; i++)
+               pstats += snprintf(pstats, 80, "DW[%d] = 0x%x\n", i,
+                                rx_dbg_stats->data[i]);
+
+       return dev->stats_mem.debugfs_mem;
+}
+
+static char *ocrdma_driver_dbg_stats(struct ocrdma_dev *dev)
+{
+       char *stats = dev->stats_mem.debugfs_mem, *pcur;
+
+
+       memset(stats, 0, (OCRDMA_MAX_DBGFS_MEM));
+
+       pcur = stats;
+       pcur += ocrdma_add_stat(stats, pcur, "async_cq_err",
+                               (u64)(dev->async_err_stats
+                               [OCRDMA_CQ_ERROR].counter));
+       pcur += ocrdma_add_stat(stats, pcur, "async_cq_overrun_err",
+                               (u64)dev->async_err_stats
+                               [OCRDMA_CQ_OVERRUN_ERROR].counter);
+       pcur += ocrdma_add_stat(stats, pcur, "async_cq_qpcat_err",
+                               (u64)dev->async_err_stats
+                               [OCRDMA_CQ_QPCAT_ERROR].counter);
+       pcur += ocrdma_add_stat(stats, pcur, "async_qp_access_err",
+                               (u64)dev->async_err_stats
+                               [OCRDMA_QP_ACCESS_ERROR].counter);
+       pcur += ocrdma_add_stat(stats, pcur, "async_qp_commm_est_evt",
+                               (u64)dev->async_err_stats
+                               [OCRDMA_QP_COMM_EST_EVENT].counter);
+       pcur += ocrdma_add_stat(stats, pcur, "async_sq_drained_evt",
+                               (u64)dev->async_err_stats
+                               [OCRDMA_SQ_DRAINED_EVENT].counter);
+       pcur += ocrdma_add_stat(stats, pcur, "async_dev_fatal_evt",
+                               (u64)dev->async_err_stats
+                               [OCRDMA_DEVICE_FATAL_EVENT].counter);
+       pcur += ocrdma_add_stat(stats, pcur, "async_srqcat_err",
+                               (u64)dev->async_err_stats
+                               [OCRDMA_SRQCAT_ERROR].counter);
+       pcur += ocrdma_add_stat(stats, pcur, "async_srq_limit_evt",
+                               (u64)dev->async_err_stats
+                               [OCRDMA_SRQ_LIMIT_EVENT].counter);
+       pcur += ocrdma_add_stat(stats, pcur, "async_qp_last_wqe_evt",
+                               (u64)dev->async_err_stats
+                               [OCRDMA_QP_LAST_WQE_EVENT].counter);
+
+       pcur += ocrdma_add_stat(stats, pcur, "cqe_loc_len_err",
+                               (u64)dev->cqe_err_stats
+                               [OCRDMA_CQE_LOC_LEN_ERR].counter);
+       pcur += ocrdma_add_stat(stats, pcur, "cqe_loc_qp_op_err",
+                               (u64)dev->cqe_err_stats
+                               [OCRDMA_CQE_LOC_QP_OP_ERR].counter);
+       pcur += ocrdma_add_stat(stats, pcur, "cqe_loc_eec_op_err",
+                               (u64)dev->cqe_err_stats
+                               [OCRDMA_CQE_LOC_EEC_OP_ERR].counter);
+       pcur += ocrdma_add_stat(stats, pcur, "cqe_loc_prot_err",
+                               (u64)dev->cqe_err_stats
+                               [OCRDMA_CQE_LOC_PROT_ERR].counter);
+       pcur += ocrdma_add_stat(stats, pcur, "cqe_wr_flush_err",
+                               (u64)dev->cqe_err_stats
+                               [OCRDMA_CQE_WR_FLUSH_ERR].counter);
+       pcur += ocrdma_add_stat(stats, pcur, "cqe_mw_bind_err",
+                               (u64)dev->cqe_err_stats
+                               [OCRDMA_CQE_MW_BIND_ERR].counter);
+       pcur += ocrdma_add_stat(stats, pcur, "cqe_bad_resp_err",
+                               (u64)dev->cqe_err_stats
+                               [OCRDMA_CQE_BAD_RESP_ERR].counter);
+       pcur += ocrdma_add_stat(stats, pcur, "cqe_loc_access_err",
+                               (u64)dev->cqe_err_stats
+                               [OCRDMA_CQE_LOC_ACCESS_ERR].counter);
+       pcur += ocrdma_add_stat(stats, pcur, "cqe_rem_inv_req_err",
+                               (u64)dev->cqe_err_stats
+                               [OCRDMA_CQE_REM_INV_REQ_ERR].counter);
+       pcur += ocrdma_add_stat(stats, pcur, "cqe_rem_access_err",
+                               (u64)dev->cqe_err_stats
+                               [OCRDMA_CQE_REM_ACCESS_ERR].counter);
+       pcur += ocrdma_add_stat(stats, pcur, "cqe_rem_op_err",
+                               (u64)dev->cqe_err_stats
+                               [OCRDMA_CQE_REM_OP_ERR].counter);
+       pcur += ocrdma_add_stat(stats, pcur, "cqe_retry_exc_err",
+                               (u64)dev->cqe_err_stats
+                               [OCRDMA_CQE_RETRY_EXC_ERR].counter);
+       pcur += ocrdma_add_stat(stats, pcur, "cqe_rnr_retry_exc_err",
+                               (u64)dev->cqe_err_stats
+                               [OCRDMA_CQE_RNR_RETRY_EXC_ERR].counter);
+       pcur += ocrdma_add_stat(stats, pcur, "cqe_loc_rdd_viol_err",
+                               (u64)dev->cqe_err_stats
+                               [OCRDMA_CQE_LOC_RDD_VIOL_ERR].counter);
+       pcur += ocrdma_add_stat(stats, pcur, "cqe_rem_inv_rd_req_err",
+                               (u64)dev->cqe_err_stats
+                               [OCRDMA_CQE_REM_INV_RD_REQ_ERR].counter);
+       pcur += ocrdma_add_stat(stats, pcur, "cqe_rem_abort_err",
+                               (u64)dev->cqe_err_stats
+                               [OCRDMA_CQE_REM_ABORT_ERR].counter);
+       pcur += ocrdma_add_stat(stats, pcur, "cqe_inv_eecn_err",
+                               (u64)dev->cqe_err_stats
+                               [OCRDMA_CQE_INV_EECN_ERR].counter);
+       pcur += ocrdma_add_stat(stats, pcur, "cqe_inv_eec_state_err",
+                               (u64)dev->cqe_err_stats
+                               [OCRDMA_CQE_INV_EEC_STATE_ERR].counter);
+       pcur += ocrdma_add_stat(stats, pcur, "cqe_fatal_err",
+                               (u64)dev->cqe_err_stats
+                               [OCRDMA_CQE_FATAL_ERR].counter);
+       pcur += ocrdma_add_stat(stats, pcur, "cqe_resp_timeout_err",
+                               (u64)dev->cqe_err_stats
+                               [OCRDMA_CQE_RESP_TIMEOUT_ERR].counter);
+       pcur += ocrdma_add_stat(stats, pcur, "cqe_general_err",
+                               (u64)dev->cqe_err_stats
+                               [OCRDMA_CQE_GENERAL_ERR].counter);
+       return stats;
+}
+
+static void ocrdma_update_stats(struct ocrdma_dev *dev)
+{
+       ulong now = jiffies, secs;
+       int status = 0;
+       struct ocrdma_rdma_stats_resp *rdma_stats =
+                     (struct ocrdma_rdma_stats_resp *)dev->stats_mem.va;
+       struct ocrdma_rsrc_stats *rsrc_stats = &rdma_stats->act_rsrc_stats;
+
+       secs = jiffies_to_msecs(now - dev->last_stats_time) / 1000U;
+       if (secs) {
+               /* update */
+               status = ocrdma_mbx_rdma_stats(dev, false);
+               if (status)
+                       pr_err("%s: stats mbox failed with status = %d\n",
+                              __func__, status);
+               /* Update PD counters from PD resource manager */
+               if (dev->pd_mgr->pd_prealloc_valid) {
+                       rsrc_stats->dpp_pds = dev->pd_mgr->pd_dpp_count;
+                       rsrc_stats->non_dpp_pds = dev->pd_mgr->pd_norm_count;
+                       /* Threshold stata*/
+                       rsrc_stats = &rdma_stats->th_rsrc_stats;
+                       rsrc_stats->dpp_pds = dev->pd_mgr->pd_dpp_thrsh;
+                       rsrc_stats->non_dpp_pds = dev->pd_mgr->pd_norm_thrsh;
+               }
+               dev->last_stats_time = jiffies;
+       }
+}
+
+static ssize_t ocrdma_dbgfs_ops_write(struct file *filp,
+                                       const char __user *buffer,
+                                       size_t count, loff_t *ppos)
+{
+       char tmp_str[32];
+       long reset;
+       int status = 0;
+       struct ocrdma_stats *pstats = filp->private_data;
+       struct ocrdma_dev *dev = pstats->dev;
+
+       if (count > 32)
+               goto err;
+
+       if (copy_from_user(tmp_str, buffer, count))
+               goto err;
+
+       tmp_str[count-1] = '\0';
+       if (kstrtol(tmp_str, 10, &reset))
+               goto err;
+
+       switch (pstats->type) {
+       case OCRDMA_RESET_STATS:
+               if (reset) {
+                       status = ocrdma_mbx_rdma_stats(dev, true);
+                       if (status) {
+                               pr_err("Failed to reset stats = %d", status);
+                               goto err;
+                       }
+               }
+               break;
+       default:
+               goto err;
+       }
+
+       return count;
+err:
+       return -EFAULT;
+}
+
+int ocrdma_pma_counters(struct ocrdma_dev *dev,
+                       struct ib_mad *out_mad)
+{
+       struct ib_pma_portcounters *pma_cnt;
+
+       memset(out_mad->data, 0, sizeof out_mad->data);
+       pma_cnt = (void *)(out_mad->data + 40);
+       ocrdma_update_stats(dev);
+
+       pma_cnt->port_xmit_data    = cpu_to_be32(ocrdma_sysfs_xmit_data(dev));
+       pma_cnt->port_rcv_data     = cpu_to_be32(ocrdma_sysfs_rcv_data(dev));
+       pma_cnt->port_xmit_packets = cpu_to_be32(ocrdma_sysfs_xmit_pkts(dev));
+       pma_cnt->port_rcv_packets  = cpu_to_be32(ocrdma_sysfs_rcv_pkts(dev));
+       return 0;
+}
+
+static ssize_t ocrdma_dbgfs_ops_read(struct file *filp, char __user *buffer,
+                                       size_t usr_buf_len, loff_t *ppos)
+{
+       struct ocrdma_stats *pstats = filp->private_data;
+       struct ocrdma_dev *dev = pstats->dev;
+       ssize_t status = 0;
+       char *data = NULL;
+
+       /* No partial reads */
+       if (*ppos != 0)
+               return 0;
+
+       mutex_lock(&dev->stats_lock);
+
+       ocrdma_update_stats(dev);
+
+       switch (pstats->type) {
+       case OCRDMA_RSRC_STATS:
+               data = ocrdma_resource_stats(dev);
+               break;
+       case OCRDMA_RXSTATS:
+               data = ocrdma_rx_stats(dev);
+               break;
+       case OCRDMA_WQESTATS:
+               data = ocrdma_wqe_stats(dev);
+               break;
+       case OCRDMA_TXSTATS:
+               data = ocrdma_tx_stats(dev);
+               break;
+       case OCRDMA_DB_ERRSTATS:
+               data = ocrdma_db_errstats(dev);
+               break;
+       case OCRDMA_RXQP_ERRSTATS:
+               data = ocrdma_rxqp_errstats(dev);
+               break;
+       case OCRDMA_TXQP_ERRSTATS:
+               data = ocrdma_txqp_errstats(dev);
+               break;
+       case OCRDMA_TX_DBG_STATS:
+               data = ocrdma_tx_dbg_stats(dev);
+               break;
+       case OCRDMA_RX_DBG_STATS:
+               data = ocrdma_rx_dbg_stats(dev);
+               break;
+       case OCRDMA_DRV_STATS:
+               data = ocrdma_driver_dbg_stats(dev);
+               break;
+
+       default:
+               status = -EFAULT;
+               goto exit;
+       }
+
+       if (usr_buf_len < strlen(data)) {
+               status = -ENOSPC;
+               goto exit;
+       }
+
+       status = simple_read_from_buffer(buffer, usr_buf_len, ppos, data,
+                                        strlen(data));
+exit:
+       mutex_unlock(&dev->stats_lock);
+       return status;
+}
+
+static const struct file_operations ocrdma_dbg_ops = {
+       .owner = THIS_MODULE,
+       .open = simple_open,
+       .read = ocrdma_dbgfs_ops_read,
+       .write = ocrdma_dbgfs_ops_write,
+};
+
+void ocrdma_add_port_stats(struct ocrdma_dev *dev)
+{
+       if (!ocrdma_dbgfs_dir)
+               return;
+
+       /* Create post stats base dir */
+       dev->dir = debugfs_create_dir(dev->ibdev.name, ocrdma_dbgfs_dir);
+       if (!dev->dir)
+               goto err;
+
+       dev->rsrc_stats.type = OCRDMA_RSRC_STATS;
+       dev->rsrc_stats.dev = dev;
+       if (!debugfs_create_file("resource_stats", S_IRUSR, dev->dir,
+                                &dev->rsrc_stats, &ocrdma_dbg_ops))
+               goto err;
+
+       dev->rx_stats.type = OCRDMA_RXSTATS;
+       dev->rx_stats.dev = dev;
+       if (!debugfs_create_file("rx_stats", S_IRUSR, dev->dir,
+                                &dev->rx_stats, &ocrdma_dbg_ops))
+               goto err;
+
+       dev->wqe_stats.type = OCRDMA_WQESTATS;
+       dev->wqe_stats.dev = dev;
+       if (!debugfs_create_file("wqe_stats", S_IRUSR, dev->dir,
+                                &dev->wqe_stats, &ocrdma_dbg_ops))
+               goto err;
+
+       dev->tx_stats.type = OCRDMA_TXSTATS;
+       dev->tx_stats.dev = dev;
+       if (!debugfs_create_file("tx_stats", S_IRUSR, dev->dir,
+                                &dev->tx_stats, &ocrdma_dbg_ops))
+               goto err;
+
+       dev->db_err_stats.type = OCRDMA_DB_ERRSTATS;
+       dev->db_err_stats.dev = dev;
+       if (!debugfs_create_file("db_err_stats", S_IRUSR, dev->dir,
+                                &dev->db_err_stats, &ocrdma_dbg_ops))
+               goto err;
+
+
+       dev->tx_qp_err_stats.type = OCRDMA_TXQP_ERRSTATS;
+       dev->tx_qp_err_stats.dev = dev;
+       if (!debugfs_create_file("tx_qp_err_stats", S_IRUSR, dev->dir,
+                                &dev->tx_qp_err_stats, &ocrdma_dbg_ops))
+               goto err;
+
+       dev->rx_qp_err_stats.type = OCRDMA_RXQP_ERRSTATS;
+       dev->rx_qp_err_stats.dev = dev;
+       if (!debugfs_create_file("rx_qp_err_stats", S_IRUSR, dev->dir,
+                                &dev->rx_qp_err_stats, &ocrdma_dbg_ops))
+               goto err;
+
+
+       dev->tx_dbg_stats.type = OCRDMA_TX_DBG_STATS;
+       dev->tx_dbg_stats.dev = dev;
+       if (!debugfs_create_file("tx_dbg_stats", S_IRUSR, dev->dir,
+                                &dev->tx_dbg_stats, &ocrdma_dbg_ops))
+               goto err;
+
+       dev->rx_dbg_stats.type = OCRDMA_RX_DBG_STATS;
+       dev->rx_dbg_stats.dev = dev;
+       if (!debugfs_create_file("rx_dbg_stats", S_IRUSR, dev->dir,
+                                &dev->rx_dbg_stats, &ocrdma_dbg_ops))
+               goto err;
+
+       dev->driver_stats.type = OCRDMA_DRV_STATS;
+       dev->driver_stats.dev = dev;
+       if (!debugfs_create_file("driver_dbg_stats", S_IRUSR, dev->dir,
+                                       &dev->driver_stats, &ocrdma_dbg_ops))
+               goto err;
+
+       dev->reset_stats.type = OCRDMA_RESET_STATS;
+       dev->reset_stats.dev = dev;
+       if (!debugfs_create_file("reset_stats", S_IRUSR, dev->dir,
+                               &dev->reset_stats, &ocrdma_dbg_ops))
+               goto err;
+
+       /* Now create dma_mem for stats mbx command */
+       if (!ocrdma_alloc_stats_mem(dev))
+               goto err;
+
+       mutex_init(&dev->stats_lock);
+
+       return;
+err:
+       ocrdma_release_stats_mem(dev);
+       debugfs_remove_recursive(dev->dir);
+       dev->dir = NULL;
+}
+
+void ocrdma_rem_port_stats(struct ocrdma_dev *dev)
+{
+       if (!dev->dir)
+               return;
+       mutex_destroy(&dev->stats_lock);
+       ocrdma_release_stats_mem(dev);
+       debugfs_remove(dev->dir);
+}
+
+void ocrdma_init_debugfs(void)
+{
+       /* Create base dir in debugfs root dir */
+       ocrdma_dbgfs_dir = debugfs_create_dir("ocrdma", NULL);
+}
+
+void ocrdma_rem_debugfs(void)
+{
+       debugfs_remove_recursive(ocrdma_dbgfs_dir);
+}