drivers/scsi/qedi/qedi_dbg.h

   1 /*
   2  * QLogic iSCSI Offload Driver
   3  * Copyright (c) 2016 Cavium Inc.
   4  *
   5  * This software is available under the terms of the GNU General Public License
   6  * (GPL) Version 2, available from the file COPYING in the main directory of
   7  * this source tree.
   8  */
   9
  10 #ifndef _QEDI_DBG_H_
  11 #define _QEDI_DBG_H_
  12
  13 #include <linux/types.h>
  14 #include <linux/kernel.h>
  15 #include <linux/compiler.h>
  16 #include <linux/string.h>
  17 #include <linux/version.h>
  18 #include <linux/pci.h>
  19 #include <linux/delay.h>
  20 #include <scsi/scsi_transport.h>
  21 #include <scsi/scsi_transport_iscsi.h>
  22 #include <linux/fs.h>
  23
  24 #define __PREVENT_QED_HSI__
  25 #include <linux/qed/common_hsi.h>
  26 #include <linux/qed/qed_if.h>
  27
  28 extern uint qedi_dbg_log;
  29
  30 /* Debug print level definitions */
  31 #define QEDI_LOG_DEFAULT        0x1             /* Set default logging mask */
  32 #define QEDI_LOG_INFO           0x2             /* Informational logs,
  33                                                  * MAC address, WWPN, WWNN
  34                                                  */
  35 #define QEDI_LOG_DISC           0x4             /* Init, discovery, rport */
  36 #define QEDI_LOG_LL2            0x8             /* LL2, VLAN logs */
  37 #define QEDI_LOG_CONN           0x10            /* Connection setup, cleanup */
  38 #define QEDI_LOG_EVT            0x20            /* Events, link, mtu */
  39 #define QEDI_LOG_TIMER          0x40            /* Timer events */
  40 #define QEDI_LOG_MP_REQ         0x80            /* Middle Path (MP) logs */
  41 #define QEDI_LOG_SCSI_TM        0x100           /* SCSI Aborts, Task Mgmt */
  42 #define QEDI_LOG_UNSOL          0x200           /* unsolicited event logs */
  43 #define QEDI_LOG_IO             0x400           /* scsi cmd, completion */
  44 #define QEDI_LOG_MQ             0x800           /* Multi Queue logs */
  45 #define QEDI_LOG_BSG            0x1000          /* BSG logs */
  46 #define QEDI_LOG_DEBUGFS        0x2000          /* debugFS logs */
  47 #define QEDI_LOG_LPORT          0x4000          /* lport logs */
  48 #define QEDI_LOG_ELS            0x8000          /* ELS logs */
  49 #define QEDI_LOG_NPIV           0x10000         /* NPIV logs */
  50 #define QEDI_LOG_SESS           0x20000         /* Conection setup, cleanup */
  51 #define QEDI_LOG_UIO            0x40000         /* iSCSI UIO logs */
  52 #define QEDI_LOG_TID            0x80000         /* FW TID context acquire,
  53                                                  * free
  54                                                  */
  55 #define QEDI_TRACK_TID          0x100000        /* Track TID state. To be
  56                                                  * enabled only at module load
  57                                                  * and not run-time.
  58                                                  */
  59 #define QEDI_TRACK_CMD_LIST    0x300000        /* Track active cmd list nodes,
  60                                                 * done with reference to TID,
  61                                                 * hence TRACK_TID also enabled.
  62                                                 */
  63 #define QEDI_LOG_NOTICE         0x40000000      /* Notice logs */
  64 #define QEDI_LOG_WARN           0x80000000      /* Warning logs */
  65
  66 /* Debug context structure */
  67 struct qedi_dbg_ctx {
  68         unsigned int host_no;
  69         struct pci_dev *pdev;
  70 #ifdef CONFIG_DEBUG_FS
  71         struct dentry *bdf_dentry;
  72 #endif
  73 };
  74
  75 #define QEDI_ERR(pdev, fmt, ...)        \
  76                 qedi_dbg_err(pdev, __func__, __LINE__, fmt, ## __VA_ARGS__)
  77 #define QEDI_WARN(pdev, fmt, ...)       \
  78                 qedi_dbg_warn(pdev, __func__, __LINE__, fmt, ## __VA_ARGS__)
  79 #define QEDI_NOTICE(pdev, fmt, ...)     \
  80                 qedi_dbg_notice(pdev, __func__, __LINE__, fmt, ## __VA_ARGS__)
  81 #define QEDI_INFO(pdev, level, fmt, ...)        \
  82                 qedi_dbg_info(pdev, __func__, __LINE__, level, fmt,     \
  83                               ## __VA_ARGS__)
  84
  85 void qedi_dbg_err(struct qedi_dbg_ctx *qedi, const char *func, u32 line,
  86                   const char *fmt, ...);
  87 void qedi_dbg_warn(struct qedi_dbg_ctx *qedi, const char *func, u32 line,
  88                    const char *fmt, ...);
  89 void qedi_dbg_notice(struct qedi_dbg_ctx *qedi, const char *func, u32 line,
  90                      const char *fmt, ...);
  91 void qedi_dbg_info(struct qedi_dbg_ctx *qedi, const char *func, u32 line,
  92                    u32 info, const char *fmt, ...);
  93
  94 struct Scsi_Host;
  95
  96 struct sysfs_bin_attrs {
  97         char *name;
  98         struct bin_attribute *attr;
  99 };
 100
 101 int qedi_create_sysfs_attr(struct Scsi_Host *shost,
 102                            struct sysfs_bin_attrs *iter);
 103 void qedi_remove_sysfs_attr(struct Scsi_Host *shost,
 104                             struct sysfs_bin_attrs *iter);
 105
 106 #ifdef CONFIG_DEBUG_FS
 107 /* DebugFS related code */
 108 struct qedi_list_of_funcs {
 109         char *oper_str;
 110         ssize_t (*oper_func)(struct qedi_dbg_ctx *qedi);
 111 };
 112
 113 struct qedi_debugfs_ops {
 114         char *name;
 115         struct qedi_list_of_funcs *qedi_funcs;
 116 };
 117
 118 #define qedi_dbg_fileops(drv, ops) \
 119 { \
 120         .owner  = THIS_MODULE, \
 121         .open   = simple_open, \
 122         .read   = drv##_dbg_##ops##_cmd_read, \
 123         .write  = drv##_dbg_##ops##_cmd_write \
 124 }
 125
 126 /* Used for debugfs sequential files */
 127 #define qedi_dbg_fileops_seq(drv, ops) \
 128 { \
 129         .owner = THIS_MODULE, \
 130         .open = drv##_dbg_##ops##_open, \
 131         .read = seq_read, \
 132         .llseek = seq_lseek, \
 133         .release = single_release, \
 134 }
 135
 136 void qedi_dbg_host_init(struct qedi_dbg_ctx *qedi,
 137                         struct qedi_debugfs_ops *dops,
 138                         const struct file_operations *fops);
 139 void qedi_dbg_host_exit(struct qedi_dbg_ctx *qedi);
 140 void qedi_dbg_init(char *drv_name);
 141 void qedi_dbg_exit(void);
 142 #endif /* CONFIG_DEBUG_FS */
 143
 144 #endif /* _QEDI_DBG_H_ */