adf_c4xxx_misc_error_stats.c

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    1 /* SPDX-License-Identifier: BSD-3-Clause */
    2 /* Copyright(c) 2007-2022 Intel Corporation */
    3 /* $FreeBSD$ */
    4 #include "adf_c4xxx_hw_data.h"
    5 #include "adf_c4xxx_misc_error_stats.h"
    6 #include "adf_common_drv.h"
    7 #include "adf_cfg_common.h"
    8 #include <sys/sbuf.h>
    9 #include <sys/sysctl.h>
   10 
   11 #define MISC_ERROR_DBG_FILE "misc_error_stats"
   12 #define LINE                                                                   \
   13         "+-----------------------------------------------------------------+\n"
   14 #define BANNER                                                                 \
   15         "|          Miscellaneous Error Statistics for Qat Device          |\n"
   16 
   17 static void *misc_counter;
   18 
   19 struct adf_dev_miscellaneous_stats {
   20         u64 misc_counter;
   21 };
   22 
   23 static int qat_misc_error_show(SYSCTL_HANDLER_ARGS)
   24 {
   25         struct sbuf sb;
   26 
   27         sbuf_new_for_sysctl(&sb, NULL, 256, req);
   28         sbuf_printf(&sb, "\n");
   29         sbuf_printf(&sb, LINE);
   30         sbuf_printf(&sb,
   31                     "| Miscellaneous Error:   %40llu |\n",
   32                     (unsigned long long)((struct adf_dev_miscellaneous_stats *)
   33                                              misc_counter)
   34                         ->misc_counter);
   35 
   36         sbuf_finish(&sb);
   37         SYSCTL_OUT(req, sbuf_data(&sb), sbuf_len(&sb));
   38         sbuf_delete(&sb);
   39 
   40         return 0;
   41 }
   42 
   43 /**
   44  * adf_misc_error_add_c4xxx() - Create debugfs entry for
   45  * acceleration device Freq counters.
   46  * @accel_dev:  Pointer to acceleration device.
   47  *
   48  * Return: 0 on success, error code otherwise.
   49  */
   50 int
   51 adf_misc_error_add_c4xxx(struct adf_accel_dev *accel_dev)
   52 {
   53         struct sysctl_ctx_list *qat_sysctl_ctx = NULL;
   54         struct sysctl_oid *qat_sysctl_tree = NULL;
   55         struct sysctl_oid *misc_er_file = NULL;
   56 
   57         qat_sysctl_ctx =
   58             device_get_sysctl_ctx(accel_dev->accel_pci_dev.pci_dev);
   59         qat_sysctl_tree =
   60             device_get_sysctl_tree(accel_dev->accel_pci_dev.pci_dev);
   61 
   62         misc_er_file = SYSCTL_ADD_PROC(qat_sysctl_ctx,
   63                                        SYSCTL_CHILDREN(qat_sysctl_tree),
   64                                        OID_AUTO,
   65                                        MISC_ERROR_DBG_FILE,
   66                                        CTLTYPE_STRING | CTLFLAG_RD,
   67                                        accel_dev,
   68                                        0,
   69                                        qat_misc_error_show,
   70                                        "A",
   71                                        "QAT Miscellaneous Error Statistics");
   72         accel_dev->misc_error_dbgfile = misc_er_file;
   73         if (!accel_dev->misc_error_dbgfile) {
   74                 device_printf(
   75                     GET_DEV(accel_dev),
   76                     "Failed to create qat miscellaneous error debugfs entry.\n");
   77                 return ENOENT;
   78         }
   79 
   80         misc_counter = kmalloc(PAGE_SIZE, GFP_KERNEL);
   81         if (!misc_counter)
   82                 return ENOMEM;
   83 
   84         memset(misc_counter, 0, PAGE_SIZE);
   85 
   86         return 0;
   87 }
   88 
   89 /**
   90  * adf_misc_error_remove_c4xxx() - Remove debugfs entry for
   91  * acceleration device misc error counter.
   92  * @accel_dev:  Pointer to acceleration device.
   93  *
   94  * Return: void
   95  */
   96 void
   97 adf_misc_error_remove_c4xxx(struct adf_accel_dev *accel_dev)
   98 {
   99         if (accel_dev->misc_error_dbgfile) {
  100                 remove_oid(accel_dev, accel_dev->misc_error_dbgfile);
  101                 accel_dev->misc_error_dbgfile = NULL;
  102         }
  103 
  104         kfree(misc_counter);
  105         misc_counter = NULL;
  106 }

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FreeBSD/Linux Kernel Cross Reference sys/dev/qat/qat_hw/qat_c4xxx/adf_c4xxx_misc_error_stats.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/qat/qat_hw/qat_c4xxx/adf_c4xxx_misc_error_stats.c