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iprlib.c
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/**
* IBM IPR adapter utility library
*
* (C) Copyright 2000, 2004
* International Business Machines Corporation and others.
* All Rights Reserved. This program and the accompanying
* materials are made available under the terms of the
* Common Public License v1.0 which accompanies this distribution.
*
*/
/*
* $Header: /cvsroot/iprdd/iprutils/iprlib.c,v 1.127 2009/10/30 18:46:39 klebers Exp $
*/
#ifndef iprlib_h
#include "iprlib.h"
#endif
static void default_exit_func()
{
}
struct ipr_array_query_data *ipr_qac_data = NULL;
int num_ioas = 0;
struct ipr_ioa *ipr_ioa_head = NULL;
struct ipr_ioa *ipr_ioa_tail = NULL;
void (*exit_func) (void) = default_exit_func;
int daemonize = 0;
int ipr_debug = 0;
int ipr_force = 0;
int ipr_sg_required = 0;
int polling_mode = 0;
int ipr_fast = 0;
int format_done = 0;
static int ipr_mode5_write_buffer = 0;
static int first_time_check_zeroed_dev = 0;
int tool_init_retry = 1;
struct sysfs_dev *head_zdev = NULL;
struct sysfs_dev *tail_zdev = NULL;
static int ipr_force_polling = 0;
static int ipr_force_uevents = 0;
static char *hotplug_dir = NULL;
static struct scsi_dev_data *scsi_dev_table = NULL;
/* Current state of this machine. */
enum system_p_mode power_cur_mode = POWER_BAREMETAL;
/* This table includes both unsupported 522 disks and disks that support
being formatted to 522, but require a minimum microcode level. The disks
that require a minimum level of microcode will be marked by the
supported_with_min_ucode_level flag set to true. */
struct unsupported_af_dasd unsupported_af[] =
{
{
/* 00 Mako & Hammerhead */
vendor_id: {"IBM "},
compare_vendor_id_byte: {1, 1, 1, 1, 1, 1, 1, 1},
product_id: {"DRVS "},
compare_product_id_byte: {1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
lid: {" "},
lid_mask: {0, 0, 0, 0},
supported_with_min_ucode_level: false,
min_ucode_level: {" "},
min_ucode_mask: {0, 0, 0, 0}
},
{
/* 01 Swordfish */
vendor_id: {"IBM "},
compare_vendor_id_byte: {1, 1, 1, 1, 1, 1, 1, 1},
product_id: {"DRHS "},
compare_product_id_byte: {1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
lid: {" "},
lid_mask: {0, 0, 0, 0},
supported_with_min_ucode_level: false,
min_ucode_level: {" "},
min_ucode_mask: {0, 0, 0, 0}
},
{
/* 02 Neptune */
vendor_id: {"IBM "},
compare_vendor_id_byte: {1, 1, 1, 1, 1, 1, 1, 1},
product_id: {"DNES "},
compare_product_id_byte: {1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
lid: {" "},
lid_mask: {0, 0, 0, 0},
supported_with_min_ucode_level: false,
min_ucode_level: {" "},
min_ucode_mask: {0, 0, 0, 0}
},
{
/* 03 Thornback, Stingray, & Manta */
vendor_id: {"IBM "},
compare_vendor_id_byte: {1, 1, 1, 1, 1, 1, 1, 1},
product_id: {"DMVS "},
compare_product_id_byte: {1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
lid: {" "},
lid_mask: {0, 0, 0, 0},
supported_with_min_ucode_level: false,
min_ucode_level: {" "},
min_ucode_mask: {0, 0, 0, 0}
},
{
/* 04 Discovery I */
vendor_id: {"IBM "},
compare_vendor_id_byte: {1, 1, 1, 1, 1, 1, 1, 1},
product_id: {"DDYS "},
compare_product_id_byte: {1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
lid: {" "},
lid_mask: {0, 0, 0, 0},
supported_with_min_ucode_level: false,
min_ucode_level: {" "},
min_ucode_mask: {0, 0, 0, 0}
},
{
/* 05 US73 (Discovery II) - fixme - are we supporting this drive? */
vendor_id: {"IBM "},
compare_vendor_id_byte: {1, 1, 1, 1, 1, 1, 1, 1},
product_id: {"IC35L D2 "},
compare_product_id_byte: {1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0},
lid: {" "},
lid_mask: {0, 0, 0, 0},
supported_with_min_ucode_level: true,
min_ucode_level: {"S5DE"},
min_ucode_mask: {1, 1, 1, 1}
},
{
/* 06 Apollo (Ext. Scallop 9GB) - LID: SC09 */
vendor_id: {"IBM "},
compare_vendor_id_byte: {1, 1, 1, 1, 1, 1, 1, 1},
product_id: {"ST318305L "},
compare_product_id_byte: {1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0},
lid: {"SC09"},
lid_mask: {1, 1, 1, 1},
supported_with_min_ucode_level: false,
min_ucode_level: {"C749"},
min_ucode_mask: {1, 1, 1, 1}
},
{
/* 07 Apollo (Ext. Scallop 18GB) - LID: SC18 */
vendor_id: {"IBM "},
compare_vendor_id_byte: {1, 1, 1, 1, 1, 1, 1, 1},
product_id: {"ST318305L "},
compare_product_id_byte: {1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0},
lid: {"SC18"},
lid_mask: {1, 1, 1, 1},
supported_with_min_ucode_level: false,
min_ucode_level: {"C709"},
min_ucode_mask: {1, 1, 1, 1}
},
{
/* 08 Apollo (Ext. Scallop 36GB) - LID: SC36 */
vendor_id: {"IBM "},
compare_vendor_id_byte: {1, 1, 1, 1, 1, 1, 1, 1},
product_id: {"ST336605L "},
compare_product_id_byte: {1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0},
lid: {"SC36"},
lid_mask: {1, 1, 1, 1},
supported_with_min_ucode_level: false,
min_ucode_level: {"C709"},
min_ucode_mask: {1, 1, 1, 1}
},
{
/* 09 Apollo (Ext. Scallop 73GB) - LID: SC73 */
vendor_id: {"IBM "},
compare_vendor_id_byte: {1, 1, 1, 1, 1, 1, 1, 1},
product_id: {"ST373405L "},
compare_product_id_byte: {1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0},
lid: {"SC73"},
lid_mask: {1, 1, 1, 1},
supported_with_min_ucode_level: false,
min_ucode_level: {"C709"},
min_ucode_mask: {1, 1, 1, 1}
},
{
/* 10 Apollo (non-external 9GB) - LID: AT1x */
vendor_id: {"IBM "},
compare_vendor_id_byte: {1, 1, 1, 1, 1, 1, 1, 1},
product_id: {"ST318305L "},
compare_product_id_byte: {1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0},
lid: {"AT1 "},
lid_mask: {1, 1, 1, 0},
supported_with_min_ucode_level: true,
min_ucode_level: {"C54E"},
min_ucode_mask: {1, 1, 1, 1}
},
{
/* 11 Apollo (non-external 18GB) - LID: AT0x */
vendor_id: {"IBM "},
compare_vendor_id_byte: {1, 1, 1, 1, 1, 1, 1, 1},
product_id: {"ST318305L "},
compare_product_id_byte: {1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0},
lid: {"AT0 "},
lid_mask: {1, 1, 1, 0},
supported_with_min_ucode_level: true,
min_ucode_level: {"C50E"},
min_ucode_mask: {1, 1, 1, 1}
},
{
/* 12 Apollo (non-external 36GB) - LID: AT0x */
vendor_id: {"IBM "},
compare_vendor_id_byte: {1, 1, 1, 1, 1, 1, 1, 1},
product_id: {"ST336605L "},
compare_product_id_byte: {1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0},
lid: {"AT0 "},
lid_mask: {1, 1, 1, 0},
supported_with_min_ucode_level: true,
min_ucode_level: {"C50E"},
min_ucode_mask: {1, 1, 1, 1}
},
{
/* 13 Apollo (non-external 73GB) - LID: AT0x */
vendor_id: {"IBM "},
compare_vendor_id_byte: {1, 1, 1, 1, 1, 1, 1, 1},
product_id: {"ST373405L "},
compare_product_id_byte: {1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0},
lid: {"AT0 "},
lid_mask: {1, 1, 1, 0},
supported_with_min_ucode_level: true,
min_ucode_level: {"C50E"},
min_ucode_mask: {1, 1, 1, 1}
},
{
/* 14 Odyssey (18, 36, 73GB) */
vendor_id: {"IBM "},
compare_vendor_id_byte: {1, 1, 1, 1, 1, 1, 1, 1},
product_id: {"ST3 53L "},
compare_product_id_byte: {1, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0},
lid: {" "},
lid_mask: {0, 0, 0, 0},
supported_with_min_ucode_level: true,
min_ucode_level: {"C51A"},
min_ucode_mask: {1, 1, 1, 1}
},
{
/* 15 Odyssey (146+GB) - fixme - not in drive list; remove from table? */
vendor_id: {"IBM "},
compare_vendor_id_byte: {1, 1, 1, 1, 1, 1, 1, 1},
product_id: {"ST3 53L "},
compare_product_id_byte: {1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0},
lid: {" "},
lid_mask: {0, 0, 0, 0},
supported_with_min_ucode_level: true,
min_ucode_level: {"C51A"},
min_ucode_mask: {1, 1, 1, 1}
},
{
/* 16 Gemini (18, 36, 73GB) */
vendor_id: {"IBM "},
compare_vendor_id_byte: {1, 1, 1, 1, 1, 1, 1, 1},
product_id: {"ST3 07L "},
compare_product_id_byte: {1, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0},
lid: {" "},
lid_mask: {0, 0, 0, 0},
supported_with_min_ucode_level: true,
min_ucode_level: {"C50F"},
min_ucode_mask: {1, 1, 1, 1}
},
{
/* 17 Gemini (146+GB) */
vendor_id: {"IBM "},
compare_vendor_id_byte: {1, 1, 1, 1, 1, 1, 1, 1},
product_id: {"ST3 07L "},
compare_product_id_byte: {1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0},
lid: {" "},
lid_mask: {0, 0, 0, 0},
supported_with_min_ucode_level: true,
min_ucode_level: {"C50F"},
min_ucode_mask: {1, 1, 1, 1}
},
{
/* 18 Daytona */
vendor_id: {"IBM "},
compare_vendor_id_byte: {1, 1, 1, 1, 1, 1, 1, 1},
product_id: {"IC35L DY "},
compare_product_id_byte: {1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0},
lid: {" "},
lid_mask: {0, 0, 0, 0},
supported_with_min_ucode_level: true,
min_ucode_level: {"S28C"},
min_ucode_mask: {1, 1, 1, 1}
}
};
struct unsupported_dasd unsupported_dasd [] = {
{ /* Piranha 18 GB, 15k RPM 160 MB/s - UCPR018 - 4322 */
vendor_id: {"IBMAS400"},
compare_vendor_id_byte: {1, 1, 1, 1, 1, 1, 1, 1},
product_id: {"UCPR018 "},
compare_product_id_byte: {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
},
{ /* Piranha 18 GB, 15k RPM 320 MB/s - XCPR018 - 4325 */
vendor_id: {"IBMAS400"},
compare_vendor_id_byte: {1, 1, 1, 1, 1, 1, 1, 1},
product_id: {"XCPR018 "},
compare_product_id_byte: {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
},
{ /* Piranha 35 GB, 15k RPM 160 MB/s - UCPR036 - 4323 */
vendor_id: {"IBMAS400"},
compare_vendor_id_byte: {1, 1, 1, 1, 1, 1, 1, 1},
product_id: {"UCPR036 "},
compare_product_id_byte: {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
},
{ /* Piranha 35 GB, 15k RPM 320 MB/s - XCPR036 - 4326 */
vendor_id: {"IBMAS400"},
compare_vendor_id_byte: {1, 1, 1, 1, 1, 1, 1, 1},
product_id: {"XCPR036 "},
compare_product_id_byte: {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
},
{ /* Monza 70 GB, 15k RPM 320 MB/s - XCPR073 - 4327 */
vendor_id: {"IBMAS400"},
compare_vendor_id_byte: {1, 1, 1, 1, 1, 1, 1, 1},
product_id: {"XCPR073 "},
compare_product_id_byte: {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
},
{ /* Monza 141 GB, 15k RPM 320 MB/s - XCPR146 - 4328 */
vendor_id: {"IBMAS400"},
compare_vendor_id_byte: {1, 1, 1, 1, 1, 1, 1, 1},
product_id: {"XCPR146 "},
compare_product_id_byte: {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
},
{ /* Monaco 282 GB, 15k RPM 320 MB/s - XCPR282 - 4329 */
vendor_id: {"IBMAS400"},
compare_vendor_id_byte: {1, 1, 1, 1, 1, 1, 1, 1},
product_id: {"XCPR282 "},
compare_product_id_byte: {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
}
};
struct ses_table_entry {
char product_id[17];
char compare_product_id_byte[17];
u32 max_bus_speed_limit;
int block_15k_devices;
};
static const struct ses_table_entry ses_table[] = {
{"2104-DL1 ", "XXXXXXXXXXXXXXXX", 80, 0},
{"2104-TL1 ", "XXXXXXXXXXXXXXXX", 80, 0},
{"HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80, 1},
{"HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80, 1},
{"HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80, 1},
{"HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80, 1},
{"2104-DU3 ", "XXXXXXXXXXXXXXXX", 160, 0},
{"2104-TU3 ", "XXXXXXXXXXXXXXXX", 160, 0},
{"HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160, 0},
{"HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160, 0},
{"St V1S2 ", "XXXXXXXXXXXXXXXX", 160, 0},
{"HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160, 0},
{"VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160, 0}
};
/*---------- static subroutine/function declearation starts here --------*/
static int sg_ioctl_by_name(char *, u8 *, void *, u32, u32,
struct sense_data_t *, u32);
/*---------- subroutine/function code starts here ---------*/
/**
* ses_table_entry -
* @ioa: ipr ioa struct
* @bus:
*
* Returns:
* ses_table_entry pointer if success / NULL on failure
**/
static const struct ses_table_entry *get_ses_entry(struct ipr_ioa *ioa, int bus)
{
int i, j, matches;
struct ipr_dev *dev = ioa->dev;
const struct ses_table_entry *ste = ses_table;
for (i = 0; i < ioa->num_devices; i++, dev++) {
if (!dev->scsi_dev_data)
continue;
if (dev->scsi_dev_data->channel == bus &&
dev->scsi_dev_data->type == TYPE_ENCLOSURE)
break;
}
if (i == ioa->num_devices)
return NULL;
if (strncmp(dev->scsi_dev_data->vendor_id, "IBM", 3))
return NULL;
for (i = 0; i < ARRAY_SIZE(ses_table); i++, ste++) {
for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
if (ste->compare_product_id_byte[j] == 'X') {
if (dev->scsi_dev_data->product_id[j] == ste->product_id[j])
matches++;
else
break;
} else
matches++;
}
if (matches == IPR_PROD_ID_LEN)
return ste;
}
return NULL;
}
/**
* get_cap_entry - Returns a pointer to a capability entry that corresponds to
* the given raid level.
* @supported_arrays: ipr_supported_arrays struct
* @raid_level: character string representation of the raid level
*
* Returns:
* ipr_array_cap_entry pointer if success / NULL on failure
**/
struct ipr_array_cap_entry *
get_cap_entry(struct ipr_supported_arrays *supported_arrays, char *raid_level)
{
struct ipr_array_cap_entry *cap;
for_each_cap_entry(cap, supported_arrays) {
if (!strcmp((char *)cap->prot_level_str, raid_level))
return cap;
}
return NULL;
}
/**
* get_raid_cap_entry - Returns a pointer to a capability entry that corresponds
* to the given protection level.
* @supported_arrays: ipr_supported_arrays struct
* @prot_level: protection level
*
* Returns:
* ipr_array_cap_entry pointer if success / NULL on failure
**/
struct ipr_array_cap_entry *
get_raid_cap_entry(struct ipr_supported_arrays *supported_arrays, u8 prot_level)
{
struct ipr_array_cap_entry *cap;
if (!supported_arrays)
return NULL;
for_each_cap_entry(cap, supported_arrays) {
if (cap->prot_level == prot_level)
return cap;
}
return NULL;
}
/**
* get_prot_level_str - Returns the string representation of the protection
* level the given the numeric protection level.
* @supported_arrays: ipr_supported_arrays struct
* @prot_level: protection level
*
* Returns:
* protection level string if success / NULL on failure
**/
char *get_prot_level_str(struct ipr_supported_arrays *supported_arrays,
int prot_level)
{
struct ipr_array_cap_entry *cap;
cap = get_raid_cap_entry(supported_arrays, prot_level);
if (cap)
return (char *)cap->prot_level_str;
return NULL;
}
/**
* get_vset_from_array - Given an array, return the corresponding
* volume set device.
* @ioa: ipr ioa struct
* @array: ipr dev struct
*
* Returns:
* 0 if success / non-zero on failure
**/
struct ipr_dev *get_vset_from_array(struct ipr_ioa *ioa, struct ipr_dev *array)
{
struct ipr_dev *vset;
for_each_vset(ioa, vset)
if (vset->array_id == array->array_id)
return vset;
return array;
}
/**
* get_array_from_vset - Given a volume set, return the corresponding
* array device.
* @ioa: ipr ioa struct
* @vset: ipr dev struct
*
* Returns:
* 0 if success / non-zero on failure
**/
struct ipr_dev *get_array_from_vset(struct ipr_ioa *ioa, struct ipr_dev *vset)
{
struct ipr_dev *array;
for_each_array(ioa, array)
if (array->array_id == vset->array_id)
return array;
return vset;
}
static ssize_t sysfs_read_attr(const char *devpath, const char *attr,
void *value, size_t len)
{
char attrpath[256];
ssize_t ret;
int fd;
sprintf(attrpath, "%s/%s", devpath, attr);
fd = open(attrpath, O_RDONLY);
if (fd < 0)
return -1;
ret = read(fd, value, len);
close(fd);
if (ret < 0)
return -1;
return ret;
}
static ssize_t sysfs_write_attr(const char *devpath, const char *attr,
void *value, size_t len)
{
char attrpath[256];
ssize_t ret;
int fd;
sprintf(attrpath, "%s/%s", devpath, attr);
fd = open(attrpath, O_WRONLY);
if (fd < 0)
return -1;
ret = write(fd, value, len);
close(fd);
if (ret < 0)
return -1;
return ret;
}
/**
* ipr_find_sysfs_dev -
* @dev: ipr dev struct
* @head: sysfs dev struct
*
* Returns:
* sysfs_dev pointer if success / NULL on failure
**/
struct sysfs_dev * ipr_find_sysfs_dev(struct ipr_dev *dev, struct sysfs_dev *head)
{
struct sysfs_dev *sdev;
if (!dev->scsi_dev_data)
return NULL;
for (sdev = head; sdev; sdev = sdev->next) {
if (sdev->device_id != dev->scsi_dev_data->device_id)
continue;
if (!memcmp(sdev->ioa_pci_addr, dev->ioa->pci_address, sizeof(sdev->ioa_pci_addr)))
break;
}
return sdev;
}
/**
* ipr_sysfs_dev_to_dev -
* @sdev: sysfs dev struct
*
* Returns:
* ipr_dev pointer if success / NULL on failure
**/
struct ipr_dev *ipr_sysfs_dev_to_dev(struct sysfs_dev *sdev)
{
struct ipr_dev *dev;
struct ipr_ioa *ioa;
for_each_ioa(ioa) {
if (memcmp(sdev->ioa_pci_addr, ioa->pci_address, sizeof(sdev->ioa_pci_addr)))
continue;
for_each_dev(ioa, dev) {
if (!dev->scsi_dev_data)
continue;
if (sdev->device_id == dev->scsi_dev_data->device_id)
return dev;
}
}
return NULL;
}
/**
* ipr_find_zeroed_dev -
* @dev: ipr dev struct
*
* Returns:
* results of call to ipr_find_sysfs_dev
**/
struct sysfs_dev * ipr_find_zeroed_dev(struct ipr_dev *dev)
{
return ipr_find_sysfs_dev(dev, head_zdev);
}
/**
* ipr_device_is_zeroed -
* @dev: ipr dev struct
*
* Returns:
* 1 if the given devices is zeroed / 0 if the device is not zeroed
**/
int ipr_device_is_zeroed(struct ipr_dev *dev)
{
if (ipr_find_zeroed_dev(dev))
return 1;
return 0;
}
/**
* ipr_add_sysfs_dev -
* @dev: ipr dev struct
* @head: sysfs dev struct
* @tail: sysfs dev struct
*
* Returns:
* nothing
**/
void ipr_add_sysfs_dev(struct ipr_dev *dev, struct sysfs_dev **head,
struct sysfs_dev **tail)
{
struct sysfs_dev *sdev = ipr_find_sysfs_dev(dev, *head);
if (!dev->scsi_dev_data)
return;
if (!sdev) {
sdev = calloc(1, sizeof(struct sysfs_dev));
sdev->device_id = dev->scsi_dev_data->device_id;
memcpy(sdev->ioa_pci_addr, dev->ioa->pci_address, sizeof(sdev->ioa_pci_addr));
if (!(*head)) {
*tail = *head = sdev;
} else {
(*tail)->next = sdev;
sdev->prev = *tail;
*tail = sdev;
}
}
}
/**
* ipr_add_zeroed_dev -
* @dev: ipr dev struct
*
* Returns:
* nothing
**/
void ipr_add_zeroed_dev(struct ipr_dev *dev)
{
ipr_add_sysfs_dev(dev, &head_zdev, &tail_zdev);
}
/**
* ipr_del_sysfs_dev -
* @dev: ipr dev struct
* @head: sysfs dev struct
* @tail: sysfs dev struct
*
* Returns:
* nothing
**/
void ipr_del_sysfs_dev(struct ipr_dev *dev, struct sysfs_dev **head,
struct sysfs_dev **tail)
{
struct sysfs_dev *sdev = ipr_find_sysfs_dev(dev, *head);
if (!sdev || !dev->scsi_dev_data)
return;
if (sdev == *head) {
*head = (*head)->next;
if (!(*head))
*tail = NULL;
else
(*head)->prev = NULL;
} else if (sdev == *tail) {
*tail = (*tail)->prev;
(*tail)->next = NULL;
} else {
sdev->next->prev = sdev->prev;
sdev->prev->next = sdev->next;
}
}
/**
* ipr_del_zeroed_dev -
* @dev: ipr dev struct
*
* Returns:
* nothing
**/
void ipr_del_zeroed_dev(struct ipr_dev *dev)
{
ipr_del_sysfs_dev(dev, &head_zdev, &tail_zdev);
}
/**
* ipr_update_qac_with_zeroed_devs
* @ioa: ipr ioa struct
*
* Returns:
* nothing
**/
void ipr_update_qac_with_zeroed_devs(struct ipr_ioa *ioa)
{
struct sysfs_dev *zdev;
struct ipr_dev_record *dev_rcd;
struct ipr_mode_pages mode_pages;
struct ipr_ioa_mode_page *page;
int i;
if (!ioa->qac_data)
return;
for (i = 0; i < ioa->num_devices; i++) {
zdev = ipr_find_zeroed_dev(&ioa->dev[i]);
if (!zdev && ipr_is_af_dasd_device(&ioa->dev[i])) {
memset(&mode_pages, 0, sizeof(mode_pages));
ipr_mode_sense(&ioa->dev[i], 0x20, &mode_pages);
page = (struct ipr_ioa_mode_page *) (((u8 *)&mode_pages) +
mode_pages.hdr.block_desc_len +
sizeof(mode_pages.hdr));
if (page->format_completed) {
dev_rcd = (struct ipr_dev_record *)ioa->dev[i].qac_entry;
dev_rcd->known_zeroed = 1;
}
}
else if (zdev && ioa->dev[i].qac_entry) {
dev_rcd = (struct ipr_dev_record *)ioa->dev[i].qac_entry;
dev_rcd->known_zeroed = 1;
}
}
}
void set_devs_format_completed()
{
struct ipr_ioa *ioa;
struct ipr_dev *dev;
if (format_done) {
for_each_ioa(ioa) {
for_each_dev(ioa, dev) {
if (ipr_is_af_dasd_device(dev) && ipr_device_is_zeroed(dev))
ipr_set_format_completed_bit(dev);
}
}
format_done = 0;
}
}
/**
* ipr_cleanup_zeroed_devs -
*
* Returns:
* nothing
**/
void ipr_cleanup_zeroed_devs()
{
struct ipr_ioa *ioa;
struct ipr_dev *dev;
struct sysfs_dev *zdev;
for_each_ioa(ioa) {
for_each_dev(ioa, dev) {
zdev = ipr_find_zeroed_dev(dev);
if (!zdev)
continue;
if (dev->scsi_dev_data && dev->scsi_dev_data->type == TYPE_DISK)
ipr_del_zeroed_dev(dev);
else if (ipr_is_array_member(dev))
ipr_del_zeroed_dev(dev);
else if (ipr_is_hot_spare(dev))
ipr_del_zeroed_dev(dev);
}
}
}
/**
* get_max_bus_speed -
* @ioa: ipr ioa struct
* @bus: bus number
*
* Returns:
* maximum bus speed value
**/
int get_max_bus_speed(struct ipr_ioa *ioa, int bus)
{
const struct ses_table_entry *ste = get_ses_entry(ioa, bus);
u32 fw_version;
int max_xfer_rate = IPR_MAX_XFER_RATE;
char devpath[PATH_MAX];
char value[16];
ssize_t len;
sprintf(devpath, "/sys/class/scsi_host/%s", ioa->host_name);
len = sysfs_read_attr(devpath, "fw_version", value, 16);
if (len < 0)
return -1;
sscanf(value, "%8X", &fw_version);
if (ipr_force)
return IPR_MAX_XFER_RATE;
if (fw_version < ioa->msl)
max_xfer_rate = IPR_SAFE_XFER_RATE;
if (ste && ste->max_bus_speed_limit < max_xfer_rate)
return ste->max_bus_speed_limit;
return max_xfer_rate;
}
struct ioa_parms {
int ccin;
int scsi_id_changeable;
u32 msl;
char *fw_name;
};
static const struct ioa_parms ioa_parms [] = {
{.ccin = 0x5702, .scsi_id_changeable = 1,
.msl = 0x02080029, .fw_name = "44415254" },
{.ccin = 0x1974, .scsi_id_changeable = 1,
.msl = 0x02080037, .fw_name = "44415254" },
{.ccin = 0x5703, .scsi_id_changeable = 1,
.msl = 0x03090059, .fw_name = "5052414D" },
{.ccin = 0x1975, .scsi_id_changeable = 1,
.msl = 0x03090068, .fw_name = "5052414D" },
{.ccin = 0x5709, .scsi_id_changeable = 0,
.msl = 0x030D0047, .fw_name = "5052414E" },
{.ccin = 0x1976, .scsi_id_changeable = 0,
.msl = 0x030D0056, .fw_name = "5052414E" },
{.ccin = 0x570A, .scsi_id_changeable = 0,
.msl = 0x020A004E, .fw_name = "44415255" },
{.ccin = 0x570B, .scsi_id_changeable = 0,
.msl = 0x020A004E, .fw_name = "44415255" },
{.ccin = 0x2780, .scsi_id_changeable = 0,
.msl = 0x030E0040, .fw_name = "5349530E" },
};
struct chip_details {
u16 vendor;
u16 device;
const char *desc;
};
static const struct chip_details chip_details []= {
{ .vendor = 0x1069, .device = 0xB166, "PCI-X" }, /* Gemstone */
{ .vendor = 0x1014, .device = 0x028C, "PCI-X" }, /* Citrine */
{ .vendor = 0x1014, .device = 0x0180, "PCI-X" }, /* Snipe */
{ .vendor = 0x1014, .device = 0x02BD, "PCI-X" }, /* Obsidian */
{ .vendor = 0x1014, .device = 0x0339, "PCI-E" }, /* Obsidian-E */
{ .vendor = 0x9005, .device = 0x0503, "PCI-X" }, /* Scamp */
{ .vendor = 0x1014, .device = 0x033D, "PCI-E" }, /* CRoC-FPGA */
{ .vendor = 0x1014, .device = 0x034A, "PCI-E" }, /* CRoCodile */
};
/**
* get_chip_details -
* @ioa: ipr ioa struct
*
* Returns:
* chip_details struct pointer if success / NULL on failure
**/
static const struct chip_details *get_chip_details(struct ipr_ioa *ioa)
{
int i;
for (i = 0; i < ARRAY_SIZE(chip_details); i++) {
if (ioa->pci_vendor == chip_details[i].vendor &&
ioa->pci_device == chip_details[i].device)
return &chip_details[i];
}
return NULL;
}
struct ioa_details {
u16 subsystem_vendor;
u16 subsystem_device;
const char *ioa_desc;
int is_spi:1;
};
static const struct ioa_details ioa_details [] = {
{.subsystem_vendor = 0x1014,
.subsystem_device = 0x028D,
"PCI-X SAS RAID Adapter", .is_spi = 0}
};
/**
* get_ioa_details -
* @ioa: ipr ioa struct
*
* Returns:
* ioa_details struct pointer if success / NULL on failure
**/
static const struct ioa_details *get_ioa_details(struct ipr_ioa *ioa)
{
int i;
for (i = 0; i < ARRAY_SIZE(ioa_details); i++) {
if (ioa->subsystem_vendor == ioa_details[i].subsystem_vendor &&
ioa->subsystem_device == ioa_details[i].subsystem_device)
return &ioa_details[i];
}
return NULL;
}
bool ipr_is_af_blk_size(struct ipr_ioa *ioa, int blk_sz)
{
if (blk_sz == ioa->af_block_size ||
(ioa->support_4k && blk_sz == IPR_AF_4K_BLOCK_SIZE))
return true;
else
return false;
}
/**
* ipr_improper_device_type -
* @dev: ipr dev struct
*
* Returns:
* 1 if the device is improper / 0 if the device is not improper
**/
int ipr_improper_device_type(struct ipr_dev *dev)
{
if (dev->rescan)
return 1;
if (!dev->scsi_dev_data)
return 0;
if (!dev->ioa->qac_data || !dev->ioa->qac_data->num_records)
return 0;
if (dev->scsi_dev_data->type == IPR_TYPE_AF_DISK && !dev->qac_entry &&
(ipr_get_blk_size(dev) == IPR_JBOD_BLOCK_SIZE ||
(dev->ioa->support_4k && ipr_get_blk_size(dev) == IPR_JBOD_4K_BLOCK_SIZE)))
return 1;
if (dev->scsi_dev_data->type == TYPE_DISK && dev->qac_entry && ipr_is_af_blk_size(dev->ioa, ipr_get_blk_size(dev)))
return 1;
return 0;
}
/**
* mode_sense -
* @dev: ipr dev struct
* @page: page number
* @buff: buffer
* @sense_data sense_data_t struct
*
* Returns:
* 0 if success / non-zero on failure
**/
static int mode_sense(struct ipr_dev *dev, u8 page, void *buff,
struct sense_data_t *sense_data)
{
u8 cdb[IPR_CCB_CDB_LEN];
int fd, rc;
u8 length = IPR_MODE_SENSE_LENGTH; /* xxx FIXME? */
char *name = dev->gen_name;
if (strlen(name) == 0)
return -ENOENT;
fd = open(name, O_RDWR);
if (fd <= 1) {
scsi_dbg(dev, "Could not open %s. %m\n", name);
return errno;