diff options
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_attr.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_attr.c | 1375 |
1 files changed, 1346 insertions, 29 deletions
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index 37bfa0bd1dae..aa3d6277581d 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -32,6 +32,7 @@ #include "lpfc_hw.h" #include "lpfc_sli.h" +#include "lpfc_nl.h" #include "lpfc_disc.h" #include "lpfc_scsi.h" #include "lpfc.h" @@ -49,6 +50,21 @@ #define LPFC_LINK_SPEED_BITMAP 0x00000117 #define LPFC_LINK_SPEED_STRING "0, 1, 2, 4, 8" +/** + * lpfc_jedec_to_ascii: Hex to ascii convertor according to JEDEC rules. + * @incr: integer to convert. + * @hdw: ascii string holding converted integer plus a string terminator. + * + * Description: + * JEDEC Joint Electron Device Engineering Council. + * Convert a 32 bit integer composed of 8 nibbles into an 8 byte ascii + * character string. The string is then terminated with a NULL in byte 9. + * Hex 0-9 becomes ascii '0' to '9'. + * Hex a-f becomes ascii '=' to 'B' capital B. + * + * Notes: + * Coded for 32 bit integers only. + **/ static void lpfc_jedec_to_ascii(int incr, char hdw[]) { @@ -65,6 +81,14 @@ lpfc_jedec_to_ascii(int incr, char hdw[]) return; } +/** + * lpfc_drvr_version_show: Return the Emulex driver string with version number. + * @dev: class unused variable. + * @attr: device attribute, not used. + * @buf: on return contains the module description text. + * + * Returns: size of formatted string. + **/ static ssize_t lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -72,6 +96,14 @@ lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr, return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n"); } +/** + * lpfc_info_show: Return some pci info about the host in ascii. + * @dev: class converted to a Scsi_host structure. + * @attr: device attribute, not used. + * @buf: on return contains the formatted text from lpfc_info(). + * + * Returns: size of formatted string. + **/ static ssize_t lpfc_info_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -81,6 +113,14 @@ lpfc_info_show(struct device *dev, struct device_attribute *attr, return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host)); } +/** + * lpfc_serialnum_show: Return the hba serial number in ascii. + * @dev: class converted to a Scsi_host structure. + * @attr: device attribute, not used. + * @buf: on return contains the formatted text serial number. + * + * Returns: size of formatted string. + **/ static ssize_t lpfc_serialnum_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -92,6 +132,18 @@ lpfc_serialnum_show(struct device *dev, struct device_attribute *attr, return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber); } +/** + * lpfc_temp_sensor_show: Return the temperature sensor level. + * @dev: class converted to a Scsi_host structure. + * @attr: device attribute, not used. + * @buf: on return contains the formatted support level. + * + * Description: + * Returns a number indicating the temperature sensor level currently + * supported, zero or one in ascii. + * + * Returns: size of formatted string. + **/ static ssize_t lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -102,6 +154,14 @@ lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr, return snprintf(buf, PAGE_SIZE, "%d\n",phba->temp_sensor_support); } +/** + * lpfc_modeldesc_show: Return the model description of the hba. + * @dev: class converted to a Scsi_host structure. + * @attr: device attribute, not used. + * @buf: on return contains the scsi vpd model description. + * + * Returns: size of formatted string. + **/ static ssize_t lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -113,6 +173,14 @@ lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr, return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc); } +/** + * lpfc_modelname_show: Return the model name of the hba. + * @dev: class converted to a Scsi_host structure. + * @attr: device attribute, not used. + * @buf: on return contains the scsi vpd model name. + * + * Returns: size of formatted string. + **/ static ssize_t lpfc_modelname_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -124,6 +192,14 @@ lpfc_modelname_show(struct device *dev, struct device_attribute *attr, return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName); } +/** + * lpfc_programtype_show: Return the program type of the hba. + * @dev: class converted to a Scsi_host structure. + * @attr: device attribute, not used. + * @buf: on return contains the scsi vpd program type. + * + * Returns: size of formatted string. + **/ static ssize_t lpfc_programtype_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -135,6 +211,33 @@ lpfc_programtype_show(struct device *dev, struct device_attribute *attr, return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType); } +/** + * lpfc_mlomgmt_show: Return the Menlo Maintenance sli flag. + * @dev: class converted to a Scsi_host structure. + * @attr: device attribute, not used. + * @buf: on return contains the Menlo Maintenance sli flag. + * + * Returns: size of formatted string. + **/ +static ssize_t +lpfc_mlomgmt_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; + struct lpfc_hba *phba = vport->phba; + + return snprintf(buf, PAGE_SIZE, "%d\n", + (phba->sli.sli_flag & LPFC_MENLO_MAINT)); +} + +/** + * lpfc_vportnum_show: Return the port number in ascii of the hba. + * @dev: class converted to a Scsi_host structure. + * @attr: device attribute, not used. + * @buf: on return contains scsi vpd program type. + * + * Returns: size of formatted string. + **/ static ssize_t lpfc_vportnum_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -146,6 +249,14 @@ lpfc_vportnum_show(struct device *dev, struct device_attribute *attr, return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port); } +/** + * lpfc_fwrev_show: Return the firmware rev running in the hba. + * @dev: class converted to a Scsi_host structure. + * @attr: device attribute, not used. + * @buf: on return contains the scsi vpd program type. + * + * Returns: size of formatted string. + **/ static ssize_t lpfc_fwrev_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -159,6 +270,14 @@ lpfc_fwrev_show(struct device *dev, struct device_attribute *attr, return snprintf(buf, PAGE_SIZE, "%s, sli-%d\n", fwrev, phba->sli_rev); } +/** + * lpfc_hdw_show: Return the jedec information about the hba. + * @dev: class converted to a Scsi_host structure. + * @attr: device attribute, not used. + * @buf: on return contains the scsi vpd program type. + * + * Returns: size of formatted string. + **/ static ssize_t lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -171,6 +290,15 @@ lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf) lpfc_jedec_to_ascii(vp->rev.biuRev, hdw); return snprintf(buf, PAGE_SIZE, "%s\n", hdw); } + +/** + * lpfc_option_rom_version_show: Return the adapter ROM FCode version. + * @dev: class converted to a Scsi_host structure. + * @attr: device attribute, not used. + * @buf: on return contains the ROM and FCode ascii strings. + * + * Returns: size of formatted string. + **/ static ssize_t lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -181,6 +309,18 @@ lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr, return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion); } + +/** + * lpfc_state_show: Return the link state of the port. + * @dev: class converted to a Scsi_host structure. + * @attr: device attribute, not used. + * @buf: on return contains text describing the state of the link. + * + * Notes: + * The switch statement has no default so zero will be returned. + * + * Returns: size of formatted string. + **/ static ssize_t lpfc_link_state_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -232,8 +372,10 @@ lpfc_link_state_show(struct device *dev, struct device_attribute *attr, "Unknown\n"); break; } - - if (phba->fc_topology == TOPOLOGY_LOOP) { + if (phba->sli.sli_flag & LPFC_MENLO_MAINT) + len += snprintf(buf + len, PAGE_SIZE-len, + " Menlo Maint Mode\n"); + else if (phba->fc_topology == TOPOLOGY_LOOP) { if (vport->fc_flag & FC_PUBLIC_LOOP) len += snprintf(buf + len, PAGE_SIZE-len, " Public Loop\n"); @@ -253,6 +395,18 @@ lpfc_link_state_show(struct device *dev, struct device_attribute *attr, return len; } +/** + * lpfc_num_discovered_ports_show: Return sum of mapped and unmapped vports. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: on return contains the sum of fc mapped and unmapped. + * + * Description: + * Returns the ascii text number of the sum of the fc mapped and unmapped + * vport counts. + * + * Returns: size of formatted string. + **/ static ssize_t lpfc_num_discovered_ports_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -264,7 +418,20 @@ lpfc_num_discovered_ports_show(struct device *dev, vport->fc_map_cnt + vport->fc_unmap_cnt); } - +/** + * lpfc_issue_lip: Misnomer, name carried over from long ago. + * @shost: Scsi_Host pointer. + * + * Description: + * Bring the link down gracefully then re-init the link. The firmware will + * re-init the fiber channel interface as required. Does not issue a LIP. + * + * Returns: + * -EPERM port offline or management commands are being blocked + * -ENOMEM cannot allocate memory for the mailbox command + * -EIO error sending the mailbox command + * zero for success + **/ static int lpfc_issue_lip(struct Scsi_Host *shost) { @@ -306,6 +473,21 @@ lpfc_issue_lip(struct Scsi_Host *shost) return 0; } +/** + * lpfc_do_offline: Issues a mailbox command to bring the link down. + * @phba: lpfc_hba pointer. + * @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL. + * + * Notes: + * Assumes any error from lpfc_do_offline() will be negative. + * Can wait up to 5 seconds for the port ring buffers count + * to reach zero, prints a warning if it is not zero and continues. + * lpfc_workq_post_event() returns a non-zero return coce if call fails. + * + * Returns: + * -EIO error posting the event + * zero for success + **/ static int lpfc_do_offline(struct lpfc_hba *phba, uint32_t type) { @@ -353,6 +535,22 @@ lpfc_do_offline(struct lpfc_hba *phba, uint32_t type) return 0; } +/** + * lpfc_selective_reset: Offline then onlines the port. + * @phba: lpfc_hba pointer. + * + * Description: + * If the port is configured to allow a reset then the hba is brought + * offline then online. + * + * Notes: + * Assumes any error from lpfc_do_offline() will be negative. + * + * Returns: + * lpfc_do_offline() return code if not zero + * -EIO reset not configured or error posting the event + * zero for success + **/ static int lpfc_selective_reset(struct lpfc_hba *phba) { @@ -378,6 +576,27 @@ lpfc_selective_reset(struct lpfc_hba *phba) return 0; } +/** + * lpfc_issue_reset: Selectively resets an adapter. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: containing the string "selective". + * @count: unused variable. + * + * Description: + * If the buf contains the string "selective" then lpfc_selective_reset() + * is called to perform the reset. + * + * Notes: + * Assumes any error from lpfc_selective_reset() will be negative. + * If lpfc_selective_reset() returns zero then the length of the buffer + * is returned which indicates succcess + * + * Returns: + * -EINVAL if the buffer does not contain the string "selective" + * length of buf if lpfc-selective_reset() if the call succeeds + * return value of lpfc_selective_reset() if the call fails +**/ static ssize_t lpfc_issue_reset(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) @@ -397,6 +616,14 @@ lpfc_issue_reset(struct device *dev, struct device_attribute *attr, return status; } +/** + * lpfc_nport_evt_cnt_show: Return the number of nport events. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: on return contains the ascii number of nport events. + * + * Returns: size of formatted string. + **/ static ssize_t lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -408,6 +635,14 @@ lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr, return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt); } +/** + * lpfc_board_mode_show: Return the state of the board. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: on return contains the state of the adapter. + * + * Returns: size of formatted string. + **/ static ssize_t lpfc_board_mode_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -429,6 +664,19 @@ lpfc_board_mode_show(struct device *dev, struct device_attribute *attr, return snprintf(buf, PAGE_SIZE, "%s\n", state); } +/** + * lpfc_board_mode_store: Puts the hba in online, offline, warm or error state. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: containing one of the strings "online", "offline", "warm" or "error". + * @count: unused variable. + * + * Returns: + * -EACCES if enable hba reset not enabled + * -EINVAL if the buffer does not contain a valid string (see above) + * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails + * buf length greater than zero indicates success + **/ static ssize_t lpfc_board_mode_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) @@ -462,6 +710,24 @@ lpfc_board_mode_store(struct device *dev, struct device_attribute *attr, return -EIO; } +/** + * lpfc_get_hba_info: Return various bits of informaton about the adapter. + * @phba: pointer to the adapter structure. + * @mxri max xri count. + * @axri available xri count. + * @mrpi max rpi count. + * @arpi available rpi count. + * @mvpi max vpi count. + * @avpi available vpi count. + * + * Description: + * If an integer pointer for an count is not null then the value for the + * count is returned. + * + * Returns: + * zero on error + * one for success + **/ static int lpfc_get_hba_info(struct lpfc_hba *phba, uint32_t *mxri, uint32_t *axri, @@ -524,6 +790,20 @@ lpfc_get_hba_info(struct lpfc_hba *phba, return 1; } +/** + * lpfc_max_rpi_show: Return maximum rpi. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: on return contains the maximum rpi count in decimal or "Unknown". + * + * Description: + * Calls lpfc_get_hba_info() asking for just the mrpi count. + * If lpfc_get_hba_info() returns zero (failure) the buffer text is set + * to "Unknown" and the buffer length is returned, therefore the caller + * must check for "Unknown" in the buffer to detect a failure. + * + * Returns: size of formatted string. + **/ static ssize_t lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -538,6 +818,20 @@ lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr, return snprintf(buf, PAGE_SIZE, "Unknown\n"); } +/** + * lpfc_used_rpi_show: Return maximum rpi minus available rpi. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: containing the used rpi count in decimal or "Unknown". + * + * Description: + * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts. + * If lpfc_get_hba_info() returns zero (failure) the buffer text is set + * to "Unknown" and the buffer length is returned, therefore the caller + * must check for "Unknown" in the buffer to detect a failure. + * + * Returns: size of formatted string. + **/ static ssize_t lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -552,6 +846,20 @@ lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr, return snprintf(buf, PAGE_SIZE, "Unknown\n"); } +/** + * lpfc_max_xri_show: Return maximum xri. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: on return contains the maximum xri count in decimal or "Unknown". + * + * Description: + * Calls lpfc_get_hba_info() asking for just the mrpi count. + * If lpfc_get_hba_info() returns zero (failure) the buffer text is set + * to "Unknown" and the buffer length is returned, therefore the caller + * must check for "Unknown" in the buffer to detect a failure. + * + * Returns: size of formatted string. + **/ static ssize_t lpfc_max_xri_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -566,6 +874,20 @@ lpfc_max_xri_show(struct device *dev, struct device_attribute *attr, return snprintf(buf, PAGE_SIZE, "Unknown\n"); } +/** + * lpfc_used_xri_show: Return maximum xpi minus the available xpi. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: on return contains the used xri count in decimal or "Unknown". + * + * Description: + * Calls lpfc_get_hba_info() asking for just the mxri and axri counts. + * If lpfc_get_hba_info() returns zero (failure) the buffer text is set + * to "Unknown" and the buffer length is returned, therefore the caller + * must check for "Unknown" in the buffer to detect a failure. + * + * Returns: size of formatted string. + **/ static ssize_t lpfc_used_xri_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -580,6 +902,20 @@ lpfc_used_xri_show(struct device *dev, struct device_attribute *attr, return snprintf(buf, PAGE_SIZE, "Unknown\n"); } +/** + * lpfc_max_vpi_show: Return maximum vpi. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: on return contains the maximum vpi count in decimal or "Unknown". + * + * Description: + * Calls lpfc_get_hba_info() asking for just the mvpi count. + * If lpfc_get_hba_info() returns zero (failure) the buffer text is set + * to "Unknown" and the buffer length is returned, therefore the caller + * must check for "Unknown" in the buffer to detect a failure. + * + * Returns: size of formatted string. + **/ static ssize_t lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -594,6 +930,20 @@ lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr, return snprintf(buf, PAGE_SIZE, "Unknown\n"); } +/** + * lpfc_used_vpi_show: Return maximum vpi minus the available vpi. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: on return contains the used vpi count in decimal or "Unknown". + * + * Description: + * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts. + * If lpfc_get_hba_info() returns zero (failure) the buffer text is set + * to "Unknown" and the buffer length is returned, therefore the caller + * must check for "Unknown" in the buffer to detect a failure. + * + * Returns: size of formatted string. + **/ static ssize_t lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -608,6 +958,19 @@ lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr, return snprintf(buf, PAGE_SIZE, "Unknown\n"); } +/** + * lpfc_npiv_info_show: Return text about NPIV support for the adapter. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: text that must be interpreted to determine if npiv is supported. + * + * Description: + * Buffer will contain text indicating npiv is not suppoerted on the port, + * the port is an NPIV physical port, or it is an npiv virtual port with + * the id of the vport. + * + * Returns: size of formatted string. + **/ static ssize_t lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -623,6 +986,17 @@ lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr, return snprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi); } +/** + * lpfc_poll_show: Return text about poll support for the adapter. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: on return contains the cfg_poll in hex. + * + * Notes: + * cfg_poll should be a lpfc_polling_flags type. + * + * Returns: size of formatted string. + **/ static ssize_t lpfc_poll_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -634,6 +1008,20 @@ lpfc_poll_show(struct device *dev, struct device_attribute *attr, return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll); } +/** + * lpfc_poll_store: Set the value of cfg_poll for the adapter. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: one or more lpfc_polling_flags values. + * @count: not used. + * + * Notes: + * buf contents converted to integer and checked for a valid value. + * + * Returns: + * -EINVAL if the buffer connot be converted or is out of range + * length of the buf on success + **/ static ssize_t lpfc_poll_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) @@ -692,6 +1080,20 @@ lpfc_poll_store(struct device *dev, struct device_attribute *attr, return strlen(buf); } +/** + * lpfc_param_show: Return a cfg attribute value in decimal. + * + * Description: + * Macro that given an attr e.g. hba_queue_depth expands + * into a function with the name lpfc_hba_queue_depth_show. + * + * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: on return contains the attribute value in decimal. + * + * Returns: size of formatted string. + **/ #define lpfc_param_show(attr) \ static ssize_t \ lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ @@ -706,6 +1108,20 @@ lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ phba->cfg_##attr);\ } +/** + * lpfc_param_hex_show: Return a cfg attribute value in hex. + * + * Description: + * Macro that given an attr e.g. hba_queue_depth expands + * into a function with the name lpfc_hba_queue_depth_show + * + * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: on return contains the attribute value in hexidecimal. + * + * Returns: size of formatted string. + **/ #define lpfc_param_hex_show(attr) \ static ssize_t \ lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ @@ -720,6 +1136,25 @@ lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ phba->cfg_##attr);\ } +/** + * lpfc_param_init: Intializes a cfg attribute. + * + * Description: + * Macro that given an attr e.g. hba_queue_depth expands + * into a function with the name lpfc_hba_queue_depth_init. The macro also + * takes a default argument, a minimum and maximum argument. + * + * lpfc_##attr##_init: Initializes an attribute. + * @phba: pointer the the adapter structure. + * @val: integer attribute value. + * + * Validates the min and max values then sets the adapter config field + * accordingly, or uses the default if out of range and prints an error message. + * + * Returns: + * zero on success + * -EINVAL if default used + **/ #define lpfc_param_init(attr, default, minval, maxval) \ static int \ lpfc_##attr##_init(struct lpfc_hba *phba, int val) \ @@ -735,6 +1170,26 @@ lpfc_##attr##_init(struct lpfc_hba *phba, int val) \ return -EINVAL;\ } +/** + * lpfc_param_set: Set a cfg attribute value. + * + * Description: + * Macro that given an attr e.g. hba_queue_depth expands + * into a function with the name lpfc_hba_queue_depth_set + * + * lpfc_##attr##_set: Sets an attribute value. + * @phba: pointer the the adapter structure. + * @val: integer attribute value. + * + * Description: + * Validates the min and max values then sets the + * adapter config field if in the valid range. prints error message + * and does not set the parameter if invalid. + * + * Returns: + * zero on success + * -EINVAL if val is invalid + **/ #define lpfc_param_set(attr, default, minval, maxval) \ static int \ lpfc_##attr##_set(struct lpfc_hba *phba, int val) \ @@ -749,6 +1204,27 @@ lpfc_##attr##_set(struct lpfc_hba *phba, int val) \ return -EINVAL;\ } +/** + * lpfc_param_store: Set a vport attribute value. + * + * Description: + * Macro that given an attr e.g. hba_queue_depth expands + * into a function with the name lpfc_hba_queue_depth_store. + * + * lpfc_##attr##_store: Set an sttribute value. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: contains the attribute value in ascii. + * @count: not used. + * + * Description: + * Convert the ascii text number to an integer, then + * use the lpfc_##attr##_set function to set the value. + * + * Returns: + * -EINVAL if val is invalid or lpfc_##attr##_set() fails + * length of buffer upon success. + **/ #define lpfc_param_store(attr) \ static ssize_t \ lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ @@ -768,6 +1244,20 @@ lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ return -EINVAL;\ } +/** + * lpfc_vport_param_show: Return decimal formatted cfg attribute value. + * + * Description: + * Macro that given an attr e.g. hba_queue_depth expands + * into a function with the name lpfc_hba_queue_depth_show + * + * lpfc_##attr##_show: prints the attribute value in decimal. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: on return contains the attribute value in decimal. + * + * Returns: length of formatted string. + **/ #define lpfc_vport_param_show(attr) \ static ssize_t \ lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ @@ -780,6 +1270,21 @@ lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\ } +/** + * lpfc_vport_param_hex_show: Return hex formatted attribute value. + * + * Description: + * Macro that given an attr e.g. + * hba_queue_depth expands into a function with the name + * lpfc_hba_queue_depth_show + * + * lpfc_##attr##_show: prints the attribute value in hexidecimal. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: on return contains the attribute value in hexidecimal. + * + * Returns: length of formatted string. + **/ #define lpfc_vport_param_hex_show(attr) \ static ssize_t \ lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ @@ -792,6 +1297,24 @@ lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ return snprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\ } +/** + * lpfc_vport_param_init: Initialize a vport cfg attribute. + * + * Description: + * Macro that given an attr e.g. hba_queue_depth expands + * into a function with the name lpfc_hba_queue_depth_init. The macro also + * takes a default argument, a minimum and maximum argument. + * + * lpfc_##attr##_init: validates the min and max values then sets the + * adapter config field accordingly, or uses the default if out of range + * and prints an error message. + * @phba: pointer the the adapter structure. + * @val: integer attribute value. + * + * Returns: + * zero on success + * -EINVAL if default used + **/ #define lpfc_vport_param_init(attr, default, minval, maxval) \ static int \ lpfc_##attr##_init(struct lpfc_vport *vport, int val) \ @@ -801,12 +1324,29 @@ lpfc_##attr##_init(struct lpfc_vport *vport, int val) \ return 0;\ }\ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ - "0449 lpfc_"#attr" attribute cannot be set to %d, "\ + "0423 lpfc_"#attr" attribute cannot be set to %d, "\ "allowed range is ["#minval", "#maxval"]\n", val); \ vport->cfg_##attr = default;\ return -EINVAL;\ } +/** + * lpfc_vport_param_set: Set a vport cfg attribute. + * + * Description: + * Macro that given an attr e.g. hba_queue_depth expands + * into a function with the name lpfc_hba_queue_depth_set + * + * lpfc_##attr##_set: validates the min and max values then sets the + * adapter config field if in the valid range. prints error message + * and does not set the parameter if invalid. + * @phba: pointer the the adapter structure. + * @val: integer attribute value. + * + * Returns: + * zero on success + * -EINVAL if val is invalid + **/ #define lpfc_vport_param_set(attr, default, minval, maxval) \ static int \ lpfc_##attr##_set(struct lpfc_vport *vport, int val) \ @@ -816,11 +1356,28 @@ lpfc_##attr##_set(struct lpfc_vport *vport, int val) \ return 0;\ }\ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ - "0450 lpfc_"#attr" attribute cannot be set to %d, "\ + "0424 lpfc_"#attr" attribute cannot be set to %d, "\ "allowed range is ["#minval", "#maxval"]\n", val); \ return -EINVAL;\ } +/** + * lpfc_vport_param_store: Set a vport attribute. + * + * Description: + * Macro that given an attr e.g. hba_queue_depth + * expands into a function with the name lpfc_hba_queue_depth_store + * + * lpfc_##attr##_store: convert the ascii text number to an integer, then + * use the lpfc_##attr##_set function to set the value. + * @cdev: class device that is converted into a Scsi_host. + * @buf: contains the attribute value in decimal. + * @count: not used. + * + * Returns: + * -EINVAL if val is invalid or lpfc_##attr##_set() fails + * length of buffer upon success. + **/ #define lpfc_vport_param_store(attr) \ static ssize_t \ lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ @@ -941,6 +1498,7 @@ static DEVICE_ATTR(option_rom_version, S_IRUGO, lpfc_option_rom_version_show, NULL); static DEVICE_ATTR(num_discovered_ports, S_IRUGO, lpfc_num_discovered_ports_show, NULL); +static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL); static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL); static DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show, NULL); static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR, @@ -958,6 +1516,17 @@ static DEVICE_ATTR(lpfc_temp_sensor, S_IRUGO, lpfc_temp_sensor_show, NULL); static char *lpfc_soft_wwn_key = "C99G71SL8032A"; +/** + * lpfc_soft_wwn_enable_store: Allows setting of the wwn if the key is valid. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: containing the string lpfc_soft_wwn_key. + * @count: must be size of lpfc_soft_wwn_key. + * + * Returns: + * -EINVAL if the buffer does not contain lpfc_soft_wwn_key + * length of buf indicates success + **/ static ssize_t lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) @@ -994,6 +1563,14 @@ lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr, static DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL, lpfc_soft_wwn_enable_store); +/** + * lpfc_soft_wwpn_show: Return the cfg soft ww port name of the adapter. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: on return contains the wwpn in hexidecimal. + * + * Returns: size of formatted string. + **/ static ssize_t lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -1006,7 +1583,19 @@ lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr, (unsigned long long)phba->cfg_soft_wwpn); } - +/** + * lpfc_soft_wwpn_store: Set the ww port name of the adapter. + * @dev class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: contains the wwpn in hexidecimal. + * @count: number of wwpn bytes in buf + * + * Returns: + * -EACCES hba reset not enabled, adapter over temp + * -EINVAL soft wwn not enabled, count is invalid, invalid wwpn byte invalid + * -EIO error taking adapter offline or online + * value of count on success + **/ static ssize_t lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) @@ -1080,6 +1669,14 @@ lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr, static DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,\ lpfc_soft_wwpn_show, lpfc_soft_wwpn_store); +/** + * lpfc_soft_wwnn_show: Return the cfg soft ww node name for the adapter. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: on return contains the wwnn in hexidecimal. + * + * Returns: size of formatted string. + **/ static ssize_t lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -1090,7 +1687,16 @@ lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr, (unsigned long long)phba->cfg_soft_wwnn); } - +/** + * lpfc_soft_wwnn_store: sets the ww node name of the adapter. + * @cdev: class device that is converted into a Scsi_host. + * @buf: contains the ww node name in hexidecimal. + * @count: number of wwnn bytes in buf. + * + * Returns: + * -EINVAL soft wwn not enabled, count is invalid, invalid wwnn byte invalid + * value of count on success + **/ static ssize_t lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) @@ -1178,6 +1784,15 @@ module_param(lpfc_nodev_tmo, int, 0); MODULE_PARM_DESC(lpfc_nodev_tmo, "Seconds driver will hold I/O waiting " "for a device to come back"); + +/** + * lpfc_nodev_tmo_show: Return the hba dev loss timeout value. + * @dev: class converted to a Scsi_host structure. + * @attr: device attribute, not used. + * @buf: on return contains the dev loss timeout in decimal. + * + * Returns: size of formatted string. + **/ static ssize_t lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -1189,6 +1804,21 @@ lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr, return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo); } +/** + * lpfc_nodev_tmo_init: Set the hba nodev timeout value. + * @vport: lpfc vport structure pointer. + * @val: contains the nodev timeout value. + * + * Description: + * If the devloss tmo is already set then nodev tmo is set to devloss tmo, + * a kernel error message is printed and zero is returned. + * Else if val is in range then nodev tmo and devloss tmo are set to val. + * Otherwise nodev tmo is set to the default value. + * + * Returns: + * zero if already set or if val is in range + * -EINVAL val out of range + **/ static int lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val) { @@ -1196,7 +1826,7 @@ lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val) vport->cfg_nodev_tmo = vport->cfg_devloss_tmo; if (val != LPFC_DEF_DEVLOSS_TMO) lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, - "0402 Ignoring nodev_tmo module " + "0407 Ignoring nodev_tmo module " "parameter because devloss_tmo is " "set.\n"); return 0; @@ -1215,6 +1845,13 @@ lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val) return -EINVAL; } +/** + * lpfc_update_rport_devloss_tmo: Update dev loss tmo value. + * @vport: lpfc vport structure pointer. + * + * Description: + * Update all the ndlp's dev loss tmo with the vport devloss tmo value. + **/ static void lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport) { @@ -1229,6 +1866,21 @@ lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport) spin_unlock_irq(shost->host_lock); } +/** + * lpfc_nodev_tmo_set: Set the vport nodev tmo and devloss tmo values. + * @vport: lpfc vport structure pointer. + * @val: contains the tmo value. + * + * Description: + * If the devloss tmo is already set or the vport dev loss tmo has changed + * then a kernel error message is printed and zero is returned. + * Else if val is in range then nodev tmo and devloss tmo are set to val. + * Otherwise nodev tmo is set to the default value. + * + * Returns: + * zero if already set or if val is in range + * -EINVAL val out of range + **/ static int lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val) { @@ -1269,6 +1921,21 @@ MODULE_PARM_DESC(lpfc_devloss_tmo, lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO) lpfc_vport_param_show(devloss_tmo) + +/** + * lpfc_devloss_tmo_set: Sets vport nodev tmo, devloss tmo values, changed bit. + * @vport: lpfc vport structure pointer. + * @val: contains the tmo value. + * + * Description: + * If val is in a valid range then set the vport nodev tmo, + * devloss tmo, also set the vport dev loss tmo changed flag. + * Else a kernel error message is printed. + * + * Returns: + * zero if val is in range + * -EINVAL val out of range + **/ static int lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val) { @@ -1366,12 +2033,27 @@ MODULE_PARM_DESC(lpfc_restrict_login, "Restrict virtual ports login to remote initiators."); lpfc_vport_param_show(restrict_login); +/** + * lpfc_restrict_login_init: Set the vport restrict login flag. + * @vport: lpfc vport structure pointer. + * @val: contains the restrict login value. + * + * Description: + * If val is not in a valid range then log a kernel error message and set + * the vport restrict login to one. + * If the port type is physical clear the restrict login flag and return. + * Else set the restrict login flag to val. + * + * Returns: + * zero if val is in range + * -EINVAL val out of range + **/ static int lpfc_restrict_login_init(struct lpfc_vport *vport, int val) { if (val < 0 || val > 1) { lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, - "0449 lpfc_restrict_login attribute cannot " + "0422 lpfc_restrict_login attribute cannot " "be set to %d, allowed range is [0, 1]\n", val); vport->cfg_restrict_login = 1; @@ -1385,12 +2067,28 @@ lpfc_restrict_login_init(struct lpfc_vport *vport, int val) return 0; } +/** + * lpfc_restrict_login_set: Set the vport restrict login flag. + * @vport: lpfc vport structure pointer. + * @val: contains the restrict login value. + * + * Description: + * If val is not in a valid range then log a kernel error message and set + * the vport restrict login to one. + * If the port type is physical and the val is not zero log a kernel + * error message, clear the restrict login flag and return zero. + * Else set the restrict login flag to val. + * + * Returns: + * zero if val is in range + * -EINVAL val out of range + **/ static int lpfc_restrict_login_set(struct lpfc_vport *vport, int val) { if (val < 0 || val > 1) { lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, - "0450 lpfc_restrict_login attribute cannot " + "0425 lpfc_restrict_login attribute cannot " "be set to %d, allowed range is [0, 1]\n", val); vport->cfg_restrict_login = 1; @@ -1441,6 +2139,23 @@ LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1, # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6]. # Default value is 0. */ + +/** + * lpfc_topology_set: Set the adapters topology field. + * @phba: lpfc_hba pointer. + * @val: topology value. + * + * Description: + * If val is in a valid range then set the adapter's topology field and + * issue a lip; if the lip fails reset the topology to the old value. + * + * If the value is not in range log a kernel error message and return an error. + * + * Returns: + * zero if val is in range and lip okay + * non-zero return value from lpfc_issue_lip() + * -EINVAL val out of range + **/ static int lpfc_topology_set(struct lpfc_hba *phba, int val) { @@ -1469,6 +2184,335 @@ lpfc_param_store(topology) static DEVICE_ATTR(lpfc_topology, S_IRUGO | S_IWUSR, lpfc_topology_show, lpfc_topology_store); + +/** + * lpfc_stat_data_ctrl_store: write call back for lpfc_stat_data_ctrl + * sysfs file. + * @dev: Pointer to class device. + * @buf: Data buffer. + * @count: Size of the data buffer. + * + * This function get called when an user write to the lpfc_stat_data_ctrl + * sysfs file. This function parse the command written to the sysfs file + * and take appropriate action. These commands are used for controlling + * driver statistical data collection. + * Following are the command this function handles. + * + * setbucket <bucket_type> <base> <step> + * = Set the latency buckets. + * destroybucket = destroy all the buckets. + * start = start data collection + * stop = stop data collection + * reset = reset the collected data + **/ +static ssize_t +lpfc_stat_data_ctrl_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; +#define LPFC_MAX_DATA_CTRL_LEN 1024 + static char bucket_data[LPFC_MAX_DATA_CTRL_LEN]; + unsigned long i; + char *str_ptr, *token; + struct lpfc_vport **vports; + struct Scsi_Host *v_shost; + char *bucket_type_str, *base_str, *step_str; + unsigned long base, step, bucket_type; + + if (!strncmp(buf, "setbucket", strlen("setbucket"))) { + if (strlen(buf) > LPFC_MAX_DATA_CTRL_LEN) + return -EINVAL; + + strcpy(bucket_data, buf); + str_ptr = &bucket_data[0]; + /* Ignore this token - this is command token */ + token = strsep(&str_ptr, "\t "); + if (!token) + return -EINVAL; + + bucket_type_str = strsep(&str_ptr, "\t "); + if (!bucket_type_str) + return -EINVAL; + + if (!strncmp(bucket_type_str, "linear", strlen("linear"))) + bucket_type = LPFC_LINEAR_BUCKET; + else if (!strncmp(bucket_type_str, "power2", strlen("power2"))) + bucket_type = LPFC_POWER2_BUCKET; + else + return -EINVAL; + + base_str = strsep(&str_ptr, "\t "); + if (!base_str) + return -EINVAL; + base = simple_strtoul(base_str, NULL, 0); + + step_str = strsep(&str_ptr, "\t "); + if (!step_str) + return -EINVAL; + step = simple_strtoul(step_str, NULL, 0); + if (!step) + return -EINVAL; + + /* Block the data collection for every vport */ + vports = lpfc_create_vport_work_array(phba); + if (vports == NULL) + return -ENOMEM; + + for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { + v_shost = lpfc_shost_from_vport(vports[i]); + spin_lock_irq(v_shost->host_lock); + /* Block and reset data collection */ + vports[i]->stat_data_blocked = 1; + if (vports[i]->stat_data_enabled) + lpfc_vport_reset_stat_data(vports[i]); + spin_unlock_irq(v_shost->host_lock); + } + + /* Set the bucket attributes */ + phba->bucket_type = bucket_type; + phba->bucket_base = base; + phba->bucket_step = step; + + for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { + v_shost = lpfc_shost_from_vport(vports[i]); + + /* Unblock data collection */ + spin_lock_irq(v_shost->host_lock); + vports[i]->stat_data_blocked = 0; + spin_unlock_irq(v_shost->host_lock); + } + lpfc_destroy_vport_work_array(phba, vports); + return strlen(buf); + } + + if (!strncmp(buf, "destroybucket", strlen("destroybucket"))) { + vports = lpfc_create_vport_work_array(phba); + if (vports == NULL) + return -ENOMEM; + + for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { + v_shost = lpfc_shost_from_vport(vports[i]); + spin_lock_irq(shost->host_lock); + vports[i]->stat_data_blocked = 1; + lpfc_free_bucket(vport); + vport->stat_data_enabled = 0; + vports[i]->stat_data_blocked = 0; + spin_unlock_irq(shost->host_lock); + } + lpfc_destroy_vport_work_array(phba, vports); + phba->bucket_type = LPFC_NO_BUCKET; + phba->bucket_base = 0; + phba->bucket_step = 0; + return strlen(buf); + } + + if (!strncmp(buf, "start", strlen("start"))) { + /* If no buckets configured return error */ + if (phba->bucket_type == LPFC_NO_BUCKET) + return -EINVAL; + spin_lock_irq(shost->host_lock); + if (vport->stat_data_enabled) { + spin_unlock_irq(shost->host_lock); + return strlen(buf); + } + lpfc_alloc_bucket(vport); + vport->stat_data_enabled = 1; + spin_unlock_irq(shost->host_lock); + return strlen(buf); + } + + if (!strncmp(buf, "stop", strlen("stop"))) { + spin_lock_irq(shost->host_lock); + if (vport->stat_data_enabled == 0) { + spin_unlock_irq(shost->host_lock); + return strlen(buf); + } + lpfc_free_bucket(vport); + vport->stat_data_enabled = 0; + spin_unlock_irq(shost->host_lock); + return strlen(buf); + } + + if (!strncmp(buf, "reset", strlen("reset"))) { + if ((phba->bucket_type == LPFC_NO_BUCKET) + || !vport->stat_data_enabled) + return strlen(buf); + spin_lock_irq(shost->host_lock); + vport->stat_data_blocked = 1; + lpfc_vport_reset_stat_data(vport); + vport->stat_data_blocked = 0; + spin_unlock_irq(shost->host_lock); + return strlen(buf); + } + return -EINVAL; +} + + +/** + * lpfc_stat_data_ctrl_show: Read callback function for + * lpfc_stat_data_ctrl sysfs file. + * @dev: Pointer to class device object. + * @buf: Data buffer. + * + * This function is the read call back function for + * lpfc_stat_data_ctrl sysfs file. This function report the + * current statistical data collection state. + **/ +static ssize_t +lpfc_stat_data_ctrl_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + int index = 0; + int i; + char *bucket_type; + unsigned long bucket_value; + + switch (phba->bucket_type) { + case LPFC_LINEAR_BUCKET: + bucket_type = "linear"; + break; + case LPFC_POWER2_BUCKET: + bucket_type = "power2"; + break; + default: + bucket_type = "No Bucket"; + break; + } + + sprintf(&buf[index], "Statistical Data enabled :%d, " + "blocked :%d, Bucket type :%s, Bucket base :%d," + " Bucket step :%d\nLatency Ranges :", + vport->stat_data_enabled, vport->stat_data_blocked, + bucket_type, phba->bucket_base, phba->bucket_step); + index = strlen(buf); + if (phba->bucket_type != LPFC_NO_BUCKET) { + for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) { + if (phba->bucket_type == LPFC_LINEAR_BUCKET) + bucket_value = phba->bucket_base + + phba->bucket_step * i; + else + bucket_value = phba->bucket_base + + (1 << i) * phba->bucket_step; + + if (index + 10 > PAGE_SIZE) + break; + sprintf(&buf[index], "%08ld ", bucket_value); + index = strlen(buf); + } + } + sprintf(&buf[index], "\n"); + return strlen(buf); +} + +/* + * Sysfs attribute to control the statistical data collection. + */ +static DEVICE_ATTR(lpfc_stat_data_ctrl, S_IRUGO | S_IWUSR, + lpfc_stat_data_ctrl_show, lpfc_stat_data_ctrl_store); + +/* + * lpfc_drvr_stat_data: sysfs attr to get driver statistical data. + */ + +/* + * Each Bucket takes 11 characters and 1 new line + 17 bytes WWN + * for each target. + */ +#define STAT_DATA_SIZE_PER_TARGET(NUM_BUCKETS) ((NUM_BUCKETS) * 11 + 18) +#define MAX_STAT_DATA_SIZE_PER_TARGET \ + STAT_DATA_SIZE_PER_TARGET(LPFC_MAX_BUCKET_COUNT) + + +/** + * sysfs_drvr_stat_data_read: Read callback function for lpfc_drvr_stat_data + * sysfs attribute. + * @kobj: Pointer to the kernel object + * @bin_attr: Attribute object + * @buff: Buffer pointer + * @off: File offset + * @count: Buffer size + * + * This function is the read call back function for lpfc_drvr_stat_data + * sysfs file. This function export the statistical data to user + * applications. + **/ +static ssize_t +sysfs_drvr_stat_data_read(struct kobject *kobj, struct bin_attribute *bin_attr, + char *buf, loff_t off, size_t count) +{ + struct device *dev = container_of(kobj, struct device, + kobj); + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + int i = 0, index = 0; + unsigned long nport_index; + struct lpfc_nodelist *ndlp = NULL; + nport_index = (unsigned long)off / + MAX_STAT_DATA_SIZE_PER_TARGET; + + if (!vport->stat_data_enabled || vport->stat_data_blocked + || (phba->bucket_type == LPFC_NO_BUCKET)) + return 0; + + spin_lock_irq(shost->host_lock); + list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { + if (!NLP_CHK_NODE_ACT(ndlp) || !ndlp->lat_data) + continue; + + if (nport_index > 0) { + nport_index--; + continue; + } + + if ((index + MAX_STAT_DATA_SIZE_PER_TARGET) + > count) + break; + + if (!ndlp->lat_data) + continue; + + /* Print the WWN */ + sprintf(&buf[index], "%02x%02x%02x%02x%02x%02x%02x%02x:", + ndlp->nlp_portname.u.wwn[0], + ndlp->nlp_portname.u.wwn[1], + ndlp->nlp_portname.u.wwn[2], + ndlp->nlp_portname.u.wwn[3], + ndlp->nlp_portname.u.wwn[4], + ndlp->nlp_portname.u.wwn[5], + ndlp->nlp_portname.u.wwn[6], + ndlp->nlp_portname.u.wwn[7]); + + index = strlen(buf); + + for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) { + sprintf(&buf[index], "%010u,", + ndlp->lat_data[i].cmd_count); + index = strlen(buf); + } + sprintf(&buf[index], "\n"); + index = strlen(buf); + } + spin_unlock_irq(shost->host_lock); + return index; +} + +static struct bin_attribute sysfs_drvr_stat_data_attr = { + .attr = { + .name = "lpfc_drvr_stat_data", + .mode = S_IRUSR, + .owner = THIS_MODULE, + }, + .size = LPFC_MAX_TARGET * MAX_STAT_DATA_SIZE_PER_TARGET, + .read = sysfs_drvr_stat_data_read, + .write = NULL, +}; + /* # lpfc_link_speed: Link speed selection for initializing the Fibre Channel # connection. @@ -1479,6 +2523,24 @@ static DEVICE_ATTR(lpfc_topology, S_IRUGO | S_IWUSR, # 8 = 8 Gigabaud # Value range is [0,8]. Default value is 0. */ + +/** + * lpfc_link_speed_set: Set the adapters link speed. + * @phba: lpfc_hba pointer. + * @val: link speed value. + * + * Description: + * If val is in a valid range then set the adapter's link speed field and + * issue a lip; if the lip fails reset the link speed to the old value. + * + * Notes: + * If the value is not in range log a kernel error message and return an error. + * + * Returns: + * zero if val is in range and lip okay. + * non-zero return value from lpfc_issue_lip() + * -EINVAL val out of range + **/ static int lpfc_link_speed_set(struct lpfc_hba *phba, int val) { @@ -1513,6 +2575,23 @@ static int lpfc_link_speed = 0; module_param(lpfc_link_speed, int, 0); MODULE_PARM_DESC(lpfc_link_speed, "Select link speed"); lpfc_param_show(link_speed) + +/** + * lpfc_link_speed_init: Set the adapters link speed. + * @phba: lpfc_hba pointer. + * @val: link speed value. + * + * Description: + * If val is in a valid range then set the adapter's link speed field. + * + * Notes: + * If the value is not in range log a kernel error message, clear the link + * speed and return an error. + * + * Returns: + * zero if val saved. + * -EINVAL val out of range + **/ static int lpfc_link_speed_init(struct lpfc_hba *phba, int val) { @@ -1522,7 +2601,7 @@ lpfc_link_speed_init(struct lpfc_hba *phba, int val) return 0; } lpfc_printf_log(phba, KERN_ERR, LOG_INIT, - "0454 lpfc_link_speed attribute cannot " + "0405 lpfc_link_speed attribute cannot " "be set to %d, allowed values are " "["LPFC_LINK_SPEED_STRING"]\n", val); phba->cfg_link_speed = 0; @@ -1548,6 +2627,48 @@ LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1, "Use ADISC on rediscovery to authenticate FCP devices"); /* +# lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue +# depth. Default value is 0. When the value of this parameter is zero the +# SCSI command completion time is not used for controlling I/O queue depth. When +# the parameter is set to a non-zero value, the I/O queue depth is controlled +# to limit the I/O completion time to the parameter value. +# The value is set in milliseconds. +*/ +static int lpfc_max_scsicmpl_time; +module_param(lpfc_max_scsicmpl_time, int, 0); +MODULE_PARM_DESC(lpfc_max_scsicmpl_time, + "Use command completion time to control queue depth"); +lpfc_vport_param_show(max_scsicmpl_time); +lpfc_vport_param_init(max_scsicmpl_time, 0, 0, 60000); +static int +lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val) +{ + struct Scsi_Host *shost = lpfc_shost_from_vport(vport); + struct lpfc_nodelist *ndlp, *next_ndlp; + + if (val == vport->cfg_max_scsicmpl_time) + return 0; + if ((val < 0) || (val > 60000)) + return -EINVAL; + vport->cfg_max_scsicmpl_time = val; + + spin_lock_irq(shost->host_lock); + list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { + if (!NLP_CHK_NODE_ACT(ndlp)) + continue; + if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) + continue; + ndlp->cmd_qdepth = LPFC_MAX_TGT_QDEPTH; + } + spin_unlock_irq(shost->host_lock); + return 0; +} +lpfc_vport_param_store(max_scsicmpl_time); +static DEVICE_ATTR(lpfc_max_scsicmpl_time, S_IRUGO | S_IWUSR, + lpfc_max_scsicmpl_time_show, + lpfc_max_scsicmpl_time_store); + +/* # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value # range is [0,1]. Default value is 0. */ @@ -1623,12 +2744,12 @@ LPFC_ATTR_RW(poll_tmo, 10, 1, 255, /* # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that # support this feature -# 0 = MSI disabled (default) +# 0 = MSI disabled # 1 = MSI enabled -# 2 = MSI-X enabled -# Value range is [0,2]. Default value is 0. +# 2 = MSI-X enabled (default) +# Value range is [0,2]. Default value is 2. */ -LPFC_ATTR_R(use_msi, 0, 0, 2, "Use Message Signaled Interrupts (1) or " +LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or " "MSI-X (2), if possible"); /* @@ -1668,6 +2789,7 @@ struct device_attribute *lpfc_hba_attrs[] = { &dev_attr_option_rom_version, &dev_attr_link_state, &dev_attr_num_discovered_ports, + &dev_attr_menlo_mgmt_mode, &dev_attr_lpfc_drvr_version, &dev_attr_lpfc_temp_sensor, &dev_attr_lpfc_log_verbose, @@ -1709,6 +2831,8 @@ struct device_attribute *lpfc_hba_attrs[] = { &dev_attr_lpfc_enable_hba_reset, &dev_attr_lpfc_enable_hba_heartbeat, &dev_attr_lpfc_sg_seg_cnt, + &dev_attr_lpfc_max_scsicmpl_time, + &dev_attr_lpfc_stat_data_ctrl, NULL, }; @@ -1731,9 +2855,29 @@ struct device_attribute *lpfc_vport_attrs[] = { &dev_attr_nport_evt_cnt, &dev_attr_npiv_info, &dev_attr_lpfc_enable_da_id, + &dev_attr_lpfc_max_scsicmpl_time, + &dev_attr_lpfc_stat_data_ctrl, NULL, }; +/** + * sysfs_ctlreg_write: Write method for writing to ctlreg. + * @kobj: kernel kobject that contains the kernel class device. + * @bin_attr: kernel attributes passed to us. + * @buf: contains the data to be written to the adapter IOREG space. + * @off: offset into buffer to beginning of data. + * @count: bytes to transfer. + * + * Description: + * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. + * Uses the adapter io control registers to send buf contents to the adapter. + * + * Returns: + * -ERANGE off and count combo out of range + * -EINVAL off, count or buff address invalid + * -EPERM adapter is offline + * value of count, buf contents written + **/ static ssize_t sysfs_ctlreg_write(struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count) @@ -1766,6 +2910,23 @@ sysfs_ctlreg_write(struct kobject *kobj, struct bin_attribute *bin_attr, return count; } +/** + * sysfs_ctlreg_read: Read method for reading from ctlreg. + * @kobj: kernel kobject that contains the kernel class device. + * @bin_attr: kernel attributes passed to us. + * @buf: if succesful contains the data from the adapter IOREG space. + * @off: offset into buffer to beginning of data. + * @count: bytes to transfer. + * + * Description: + * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. + * Uses the adapter io control registers to read data into buf. + * + * Returns: + * -ERANGE off and count combo out of range + * -EINVAL off, count or buff address invalid + * value of count, buf contents read + **/ static ssize_t sysfs_ctlreg_read(struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count) @@ -1810,7 +2971,10 @@ static struct bin_attribute sysfs_ctlreg_attr = { .write = sysfs_ctlreg_write, }; - +/** + * sysfs_mbox_idle: frees the sysfs mailbox. + * @phba: lpfc_hba pointer + **/ static void sysfs_mbox_idle(struct lpfc_hba *phba) { @@ -1824,6 +2988,27 @@ sysfs_mbox_idle(struct lpfc_hba *phba) } } +/** + * sysfs_mbox_write: Write method for writing information via mbox. + * @kobj: kernel kobject that contains the kernel class device. + * @bin_attr: kernel attributes passed to us. + * @buf: contains the data to be written to sysfs mbox. + * @off: offset into buffer to beginning of data. + * @count: bytes to transfer. + * + * Description: + * Accessed via /sys/class/scsi_host/hostxxx/mbox. + * Uses the sysfs mbox to send buf contents to the adapter. + * + * Returns: + * -ERANGE off and count combo out of range + * -EINVAL off, count or buff address invalid + * zero if count is zero + * -EPERM adapter is offline + * -ENOMEM failed to allocate memory for the mail box + * -EAGAIN offset, state or mbox is NULL + * count number of bytes transferred + **/ static ssize_t sysfs_mbox_write(struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count) @@ -1878,6 +3063,29 @@ sysfs_mbox_write(struct kobject *kobj, struct bin_attribute *bin_attr, return count; } +/** + * sysfs_mbox_read: Read method for reading information via mbox. + * @kobj: kernel kobject that contains the kernel class device. + * @bin_attr: kernel attributes passed to us. + * @buf: contains the data to be read from sysfs mbox. + * @off: offset into buffer to beginning of data. + * @count: bytes to transfer. + * + * Description: + * Accessed via /sys/class/scsi_host/hostxxx/mbox. + * Uses the sysfs mbox to receive data from to the adapter. + * + * Returns: + * -ERANGE off greater than mailbox command size + * -EINVAL off, count or buff address invalid + * zero if off and count are zero + * -EACCES adapter over temp + * -EPERM garbage can value to catch a multitude of errors + * -EAGAIN management IO not permitted, state or off error + * -ETIME mailbox timeout + * -ENODEV mailbox error + * count number of bytes transferred + **/ static ssize_t sysfs_mbox_read(struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count) @@ -1954,6 +3162,8 @@ sysfs_mbox_read(struct kobject *kobj, struct bin_attribute *bin_attr, case MBX_DEL_LD_ENTRY: case MBX_SET_VARIABLE: case MBX_WRITE_WWN: + case MBX_PORT_CAPABILITIES: + case MBX_PORT_IOV_CONTROL: break; case MBX_READ_SPARM64: case MBX_READ_LA: @@ -1978,17 +3188,15 @@ sysfs_mbox_read(struct kobject *kobj, struct bin_attribute *bin_attr, /* If HBA encountered an error attention, allow only DUMP * or RESTART mailbox commands until the HBA is restarted. */ - if ((phba->pport->stopped) && - (phba->sysfs_mbox.mbox->mb.mbxCommand != - MBX_DUMP_MEMORY && - phba->sysfs_mbox.mbox->mb.mbxCommand != - MBX_RESTART && - phba->sysfs_mbox.mbox->mb.mbxCommand != - MBX_WRITE_VPARMS)) { - sysfs_mbox_idle(phba); - spin_unlock_irq(&phba->hbalock); - return -EPERM; - } + if (phba->pport->stopped && + phba->sysfs_mbox.mbox->mb.mbxCommand != MBX_DUMP_MEMORY && + phba->sysfs_mbox.mbox->mb.mbxCommand != MBX_RESTART && + phba->sysfs_mbox.mbox->mb.mbxCommand != MBX_WRITE_VPARMS && + phba->sysfs_mbox.mbox->mb.mbxCommand != MBX_WRITE_WWN) + lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, + "1259 mbox: Issued mailbox cmd " + "0x%x while in stopped state.\n", + phba->sysfs_mbox.mbox->mb.mbxCommand); phba->sysfs_mbox.mbox->vport = vport; @@ -2059,6 +3267,14 @@ static struct bin_attribute sysfs_mbox_attr = { .write = sysfs_mbox_write, }; +/** + * lpfc_alloc_sysfs_attr: Creates the ctlreg and mbox entries. + * @vport: address of lpfc vport structure. + * + * Return codes: + * zero on success + * error return code from sysfs_create_bin_file() + **/ int lpfc_alloc_sysfs_attr(struct lpfc_vport *vport) { @@ -2075,18 +3291,30 @@ lpfc_alloc_sysfs_attr(struct lpfc_vport *vport) if (error) goto out_remove_ctlreg_attr; + error = sysfs_create_bin_file(&shost->shost_dev.kobj, + &sysfs_drvr_stat_data_attr); + if (error) + goto out_remove_mbox_attr; + return 0; +out_remove_mbox_attr: + sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr); out_remove_ctlreg_attr: sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); out: return error; } +/** + * lpfc_free_sysfs_attr: Removes the ctlreg and mbox entries. + * @vport: address of lpfc vport structure. + **/ void lpfc_free_sysfs_attr(struct lpfc_vport *vport) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); - + sysfs_remove_bin_file(&shost->shost_dev.kobj, + &sysfs_drvr_stat_data_attr); sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr); sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); } @@ -2096,6 +3324,10 @@ lpfc_free_sysfs_attr(struct lpfc_vport *vport) * Dynamic FC Host Attributes Support */ +/** + * lpfc_get_host_port_id: Copy the vport DID into the scsi host port id. + * @shost: kernel scsi host pointer. + **/ static void lpfc_get_host_port_id(struct Scsi_Host *shost) { @@ -2105,6 +3337,10 @@ lpfc_get_host_port_id(struct Scsi_Host *shost) fc_host_port_id(shost) = vport->fc_myDID; } +/** + * lpfc_get_host_port_type: Set the value of the scsi host port type. + * @shost: kernel scsi host pointer. + **/ static void lpfc_get_host_port_type(struct Scsi_Host *shost) { @@ -2133,6 +3369,10 @@ lpfc_get_host_port_type(struct Scsi_Host *shost) spin_unlock_irq(shost->host_lock); } +/** + * lpfc_get_host_port_state: Set the value of the scsi host port state. + * @shost: kernel scsi host pointer. + **/ static void lpfc_get_host_port_state(struct Scsi_Host *shost) { @@ -2167,6 +3407,10 @@ lpfc_get_host_port_state(struct Scsi_Host *shost) spin_unlock_irq(shost->host_lock); } +/** + * lpfc_get_host_speed: Set the value of the scsi host speed. + * @shost: kernel scsi host pointer. + **/ static void lpfc_get_host_speed(struct Scsi_Host *shost) { @@ -2199,6 +3443,10 @@ lpfc_get_host_speed(struct Scsi_Host *shost) spin_unlock_irq(shost->host_lock); } +/** + * lpfc_get_host_fabric_name: Set the value of the scsi host fabric name. + * @shost: kernel scsi host pointer. + **/ static void lpfc_get_host_fabric_name (struct Scsi_Host *shost) { @@ -2221,6 +3469,18 @@ lpfc_get_host_fabric_name (struct Scsi_Host *shost) fc_host_fabric_name(shost) = node_name; } +/** + * lpfc_get_stats: Return statistical information about the adapter. + * @shost: kernel scsi host pointer. + * + * Notes: + * NULL on error for link down, no mbox pool, sli2 active, + * management not allowed, memory allocation error, or mbox error. + * + * Returns: + * NULL for error + * address of the adapter host statistics + **/ static struct fc_host_statistics * lpfc_get_stats(struct Scsi_Host *shost) { @@ -2334,6 +3594,10 @@ lpfc_get_stats(struct Scsi_Host *shost) return hs; } +/** + * lpfc_reset_stats: Copy the adapter link stats information. + * @shost: kernel scsi host pointer. + **/ static void lpfc_reset_stats(struct Scsi_Host *shost) { @@ -2411,6 +3675,14 @@ lpfc_reset_stats(struct Scsi_Host *shost) * are no sysfs handlers for link_down_tmo. */ +/** + * lpfc_get_node_by_target: Return the nodelist for a target. + * @starget: kernel scsi target pointer. + * + * Returns: + * address of the node list if found + * NULL target not found + **/ static struct lpfc_nodelist * lpfc_get_node_by_target(struct scsi_target *starget) { @@ -2432,6 +3704,10 @@ lpfc_get_node_by_target(struct scsi_target *starget) return NULL; } +/** + * lpfc_get_starget_port_id: Set the target port id to the ndlp DID or -1. + * @starget: kernel scsi target pointer. + **/ static void lpfc_get_starget_port_id(struct scsi_target *starget) { @@ -2440,6 +3716,12 @@ lpfc_get_starget_port_id(struct scsi_target *starget) fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1; } +/** + * lpfc_get_starget_node_name: Set the target node name. + * @starget: kernel scsi target pointer. + * + * Description: Set the target node name to the ndlp node name wwn or zero. + **/ static void lpfc_get_starget_node_name(struct scsi_target *starget) { @@ -2449,6 +3731,12 @@ lpfc_get_starget_node_name(struct scsi_target *starget) ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0; } +/** + * lpfc_get_starget_port_name: Set the target port name. + * @starget: kernel scsi target pointer. + * + * Description: set the target port name to the ndlp port name wwn or zero. + **/ static void lpfc_get_starget_port_name(struct scsi_target *starget) { @@ -2458,6 +3746,15 @@ lpfc_get_starget_port_name(struct scsi_target *starget) ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0; } +/** + * lpfc_set_rport_loss_tmo: Set the rport dev loss tmo. + * @rport: fc rport address. + * @timeout: new value for dev loss tmo. + * + * Description: + * If timeout is non zero set the dev_loss_tmo to timeout, else set + * dev_loss_tmo to one. + **/ static void lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) { @@ -2467,7 +3764,18 @@ lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) rport->dev_loss_tmo = 1; } - +/** + * lpfc_rport_show_function: Return rport target information. + * + * Description: + * Macro that uses field to generate a function with the name lpfc_show_rport_ + * + * lpfc_show_rport_##field: returns the bytes formatted in buf + * @cdev: class converted to an fc_rport. + * @buf: on return contains the target_field or zero. + * + * Returns: size of formatted string. + **/ #define lpfc_rport_show_function(field, format_string, sz, cast) \ static ssize_t \ lpfc_show_rport_##field (struct device *dev, \ @@ -2602,6 +3910,10 @@ struct fc_function_template lpfc_vport_transport_functions = { .vport_disable = lpfc_vport_disable, }; +/** + * lpfc_get_cfgparam: Used during probe_one to init the adapter structure. + * @phba: lpfc_hba pointer. + **/ void lpfc_get_cfgparam(struct lpfc_hba *phba) { @@ -2637,6 +3949,10 @@ lpfc_get_cfgparam(struct lpfc_hba *phba) return; } +/** + * lpfc_get_vport_cfgparam: Used during port create, init the vport structure. + * @vport: lpfc_vport pointer. + **/ void lpfc_get_vport_cfgparam(struct lpfc_vport *vport) { @@ -2648,6 +3964,7 @@ lpfc_get_vport_cfgparam(struct lpfc_vport *vport) lpfc_restrict_login_init(vport, lpfc_restrict_login); lpfc_fcp_class_init(vport, lpfc_fcp_class); lpfc_use_adisc_init(vport, lpfc_use_adisc); + lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time); lpfc_fdmi_on_init(vport, lpfc_fdmi_on); lpfc_discovery_threads_init(vport, lpfc_discovery_threads); lpfc_max_luns_init(vport, lpfc_max_luns); |