![Kees Cook](/assets/img/avatar_default.png)
The kzalloc() function has a 2-factor argument form, kcalloc(). This patch replaces cases of: kzalloc(a * b, gfp) with: kcalloc(a * b, gfp) as well as handling cases of: kzalloc(a * b * c, gfp) with: kzalloc(array3_size(a, b, c), gfp) as it's slightly less ugly than: kzalloc_array(array_size(a, b), c, gfp) This does, however, attempt to ignore constant size factors like: kzalloc(4 * 1024, gfp) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ type TYPE; expression THING, E; @@ ( kzalloc( - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | kzalloc( - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression COUNT; typedef u8; typedef __u8; @@ ( kzalloc( - sizeof(u8) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(__u8) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(char) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(unsigned char) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(u8) * COUNT + COUNT , ...) | kzalloc( - sizeof(__u8) * COUNT + COUNT , ...) | kzalloc( - sizeof(char) * COUNT + COUNT , ...) | kzalloc( - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( - kzalloc + kcalloc ( - sizeof(TYPE) * (COUNT_ID) + COUNT_ID, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * COUNT_ID + COUNT_ID, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * (COUNT_CONST) + COUNT_CONST, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * COUNT_CONST + COUNT_CONST, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * (COUNT_ID) + COUNT_ID, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * COUNT_ID + COUNT_ID, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * (COUNT_CONST) + COUNT_CONST, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * COUNT_CONST + COUNT_CONST, sizeof(THING) , ...) ) // 2-factor product, only identifiers. @@ identifier SIZE, COUNT; @@ - kzalloc + kcalloc ( - SIZE * COUNT + COUNT, SIZE , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( kzalloc( - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc( - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc( - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc( - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( kzalloc( - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kzalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kzalloc( - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kzalloc( - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kzalloc( - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | kzalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ identifier STRIDE, SIZE, COUNT; @@ ( kzalloc( - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products, // when they're not all constants... @@ expression E1, E2, E3; constant C1, C2, C3; @@ ( kzalloc(C1 * C2 * C3, ...) | kzalloc( - (E1) * E2 * E3 + array3_size(E1, E2, E3) , ...) | kzalloc( - (E1) * (E2) * E3 + array3_size(E1, E2, E3) , ...) | kzalloc( - (E1) * (E2) * (E3) + array3_size(E1, E2, E3) , ...) | kzalloc( - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants, // keeping sizeof() as the second factor argument. @@ expression THING, E1, E2; type TYPE; constant C1, C2, C3; @@ ( kzalloc(sizeof(THING) * C2, ...) | kzalloc(sizeof(TYPE) * C2, ...) | kzalloc(C1 * C2 * C3, ...) | kzalloc(C1 * C2, ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * (E2) + E2, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * E2 + E2, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * (E2) + E2, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * E2 + E2, sizeof(THING) , ...) | - kzalloc + kcalloc ( - (E1) * E2 + E1, E2 , ...) | - kzalloc + kcalloc ( - (E1) * (E2) + E1, E2 , ...) | - kzalloc + kcalloc ( - E1 * E2 + E1, E2 , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>
7514 lines
200 KiB
C
7514 lines
200 KiB
C
/*
|
|
* driver for Microsemi PQI-based storage controllers
|
|
* Copyright (c) 2016-2017 Microsemi Corporation
|
|
* Copyright (c) 2016 PMC-Sierra, Inc.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; version 2 of the License.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
|
|
* NON INFRINGEMENT. See the GNU General Public License for more details.
|
|
*
|
|
* Questions/Comments/Bugfixes to esc.storagedev@microsemi.com
|
|
*
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/rtc.h>
|
|
#include <linux/bcd.h>
|
|
#include <linux/reboot.h>
|
|
#include <linux/cciss_ioctl.h>
|
|
#include <linux/blk-mq-pci.h>
|
|
#include <scsi/scsi_host.h>
|
|
#include <scsi/scsi_cmnd.h>
|
|
#include <scsi/scsi_device.h>
|
|
#include <scsi/scsi_eh.h>
|
|
#include <scsi/scsi_transport_sas.h>
|
|
#include <asm/unaligned.h>
|
|
#include "smartpqi.h"
|
|
#include "smartpqi_sis.h"
|
|
|
|
#if !defined(BUILD_TIMESTAMP)
|
|
#define BUILD_TIMESTAMP
|
|
#endif
|
|
|
|
#define DRIVER_VERSION "1.1.4-115"
|
|
#define DRIVER_MAJOR 1
|
|
#define DRIVER_MINOR 1
|
|
#define DRIVER_RELEASE 4
|
|
#define DRIVER_REVISION 115
|
|
|
|
#define DRIVER_NAME "Microsemi PQI Driver (v" \
|
|
DRIVER_VERSION BUILD_TIMESTAMP ")"
|
|
#define DRIVER_NAME_SHORT "smartpqi"
|
|
|
|
#define PQI_EXTRA_SGL_MEMORY (12 * sizeof(struct pqi_sg_descriptor))
|
|
|
|
MODULE_AUTHOR("Microsemi");
|
|
MODULE_DESCRIPTION("Driver for Microsemi Smart Family Controller version "
|
|
DRIVER_VERSION);
|
|
MODULE_SUPPORTED_DEVICE("Microsemi Smart Family Controllers");
|
|
MODULE_VERSION(DRIVER_VERSION);
|
|
MODULE_LICENSE("GPL");
|
|
|
|
static void pqi_take_ctrl_offline(struct pqi_ctrl_info *ctrl_info);
|
|
static void pqi_ctrl_offline_worker(struct work_struct *work);
|
|
static void pqi_retry_raid_bypass_requests(struct pqi_ctrl_info *ctrl_info);
|
|
static int pqi_scan_scsi_devices(struct pqi_ctrl_info *ctrl_info);
|
|
static void pqi_scan_start(struct Scsi_Host *shost);
|
|
static void pqi_start_io(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_queue_group *queue_group, enum pqi_io_path path,
|
|
struct pqi_io_request *io_request);
|
|
static int pqi_submit_raid_request_synchronous(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_iu_header *request, unsigned int flags,
|
|
struct pqi_raid_error_info *error_info, unsigned long timeout_msecs);
|
|
static int pqi_aio_submit_io(struct pqi_ctrl_info *ctrl_info,
|
|
struct scsi_cmnd *scmd, u32 aio_handle, u8 *cdb,
|
|
unsigned int cdb_length, struct pqi_queue_group *queue_group,
|
|
struct pqi_encryption_info *encryption_info, bool raid_bypass);
|
|
|
|
/* for flags argument to pqi_submit_raid_request_synchronous() */
|
|
#define PQI_SYNC_FLAGS_INTERRUPTABLE 0x1
|
|
|
|
static struct scsi_transport_template *pqi_sas_transport_template;
|
|
|
|
static atomic_t pqi_controller_count = ATOMIC_INIT(0);
|
|
|
|
enum pqi_lockup_action {
|
|
NONE,
|
|
REBOOT,
|
|
PANIC
|
|
};
|
|
|
|
static enum pqi_lockup_action pqi_lockup_action = NONE;
|
|
|
|
static struct {
|
|
enum pqi_lockup_action action;
|
|
char *name;
|
|
} pqi_lockup_actions[] = {
|
|
{
|
|
.action = NONE,
|
|
.name = "none",
|
|
},
|
|
{
|
|
.action = REBOOT,
|
|
.name = "reboot",
|
|
},
|
|
{
|
|
.action = PANIC,
|
|
.name = "panic",
|
|
},
|
|
};
|
|
|
|
static unsigned int pqi_supported_event_types[] = {
|
|
PQI_EVENT_TYPE_HOTPLUG,
|
|
PQI_EVENT_TYPE_HARDWARE,
|
|
PQI_EVENT_TYPE_PHYSICAL_DEVICE,
|
|
PQI_EVENT_TYPE_LOGICAL_DEVICE,
|
|
PQI_EVENT_TYPE_AIO_STATE_CHANGE,
|
|
PQI_EVENT_TYPE_AIO_CONFIG_CHANGE,
|
|
};
|
|
|
|
static int pqi_disable_device_id_wildcards;
|
|
module_param_named(disable_device_id_wildcards,
|
|
pqi_disable_device_id_wildcards, int, 0644);
|
|
MODULE_PARM_DESC(disable_device_id_wildcards,
|
|
"Disable device ID wildcards.");
|
|
|
|
static int pqi_disable_heartbeat;
|
|
module_param_named(disable_heartbeat,
|
|
pqi_disable_heartbeat, int, 0644);
|
|
MODULE_PARM_DESC(disable_heartbeat,
|
|
"Disable heartbeat.");
|
|
|
|
static int pqi_disable_ctrl_shutdown;
|
|
module_param_named(disable_ctrl_shutdown,
|
|
pqi_disable_ctrl_shutdown, int, 0644);
|
|
MODULE_PARM_DESC(disable_ctrl_shutdown,
|
|
"Disable controller shutdown when controller locked up.");
|
|
|
|
static char *pqi_lockup_action_param;
|
|
module_param_named(lockup_action,
|
|
pqi_lockup_action_param, charp, 0644);
|
|
MODULE_PARM_DESC(lockup_action, "Action to take when controller locked up.\n"
|
|
"\t\tSupported: none, reboot, panic\n"
|
|
"\t\tDefault: none");
|
|
|
|
static char *raid_levels[] = {
|
|
"RAID-0",
|
|
"RAID-4",
|
|
"RAID-1(1+0)",
|
|
"RAID-5",
|
|
"RAID-5+1",
|
|
"RAID-ADG",
|
|
"RAID-1(ADM)",
|
|
};
|
|
|
|
static char *pqi_raid_level_to_string(u8 raid_level)
|
|
{
|
|
if (raid_level < ARRAY_SIZE(raid_levels))
|
|
return raid_levels[raid_level];
|
|
|
|
return "RAID UNKNOWN";
|
|
}
|
|
|
|
#define SA_RAID_0 0
|
|
#define SA_RAID_4 1
|
|
#define SA_RAID_1 2 /* also used for RAID 10 */
|
|
#define SA_RAID_5 3 /* also used for RAID 50 */
|
|
#define SA_RAID_51 4
|
|
#define SA_RAID_6 5 /* also used for RAID 60 */
|
|
#define SA_RAID_ADM 6 /* also used for RAID 1+0 ADM */
|
|
#define SA_RAID_MAX SA_RAID_ADM
|
|
#define SA_RAID_UNKNOWN 0xff
|
|
|
|
static inline void pqi_scsi_done(struct scsi_cmnd *scmd)
|
|
{
|
|
pqi_prep_for_scsi_done(scmd);
|
|
scmd->scsi_done(scmd);
|
|
}
|
|
|
|
static inline bool pqi_scsi3addr_equal(u8 *scsi3addr1, u8 *scsi3addr2)
|
|
{
|
|
return memcmp(scsi3addr1, scsi3addr2, 8) == 0;
|
|
}
|
|
|
|
static inline struct pqi_ctrl_info *shost_to_hba(struct Scsi_Host *shost)
|
|
{
|
|
void *hostdata = shost_priv(shost);
|
|
|
|
return *((struct pqi_ctrl_info **)hostdata);
|
|
}
|
|
|
|
static inline bool pqi_is_logical_device(struct pqi_scsi_dev *device)
|
|
{
|
|
return !device->is_physical_device;
|
|
}
|
|
|
|
static inline bool pqi_is_external_raid_addr(u8 *scsi3addr)
|
|
{
|
|
return scsi3addr[2] != 0;
|
|
}
|
|
|
|
static inline bool pqi_ctrl_offline(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
return !ctrl_info->controller_online;
|
|
}
|
|
|
|
static inline void pqi_check_ctrl_health(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
if (ctrl_info->controller_online)
|
|
if (!sis_is_firmware_running(ctrl_info))
|
|
pqi_take_ctrl_offline(ctrl_info);
|
|
}
|
|
|
|
static inline bool pqi_is_hba_lunid(u8 *scsi3addr)
|
|
{
|
|
return pqi_scsi3addr_equal(scsi3addr, RAID_CTLR_LUNID);
|
|
}
|
|
|
|
static inline enum pqi_ctrl_mode pqi_get_ctrl_mode(
|
|
struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
return sis_read_driver_scratch(ctrl_info);
|
|
}
|
|
|
|
static inline void pqi_save_ctrl_mode(struct pqi_ctrl_info *ctrl_info,
|
|
enum pqi_ctrl_mode mode)
|
|
{
|
|
sis_write_driver_scratch(ctrl_info, mode);
|
|
}
|
|
|
|
static inline void pqi_ctrl_block_requests(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
ctrl_info->block_requests = true;
|
|
scsi_block_requests(ctrl_info->scsi_host);
|
|
}
|
|
|
|
static inline void pqi_ctrl_unblock_requests(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
ctrl_info->block_requests = false;
|
|
wake_up_all(&ctrl_info->block_requests_wait);
|
|
pqi_retry_raid_bypass_requests(ctrl_info);
|
|
scsi_unblock_requests(ctrl_info->scsi_host);
|
|
}
|
|
|
|
static inline bool pqi_ctrl_blocked(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
return ctrl_info->block_requests;
|
|
}
|
|
|
|
static unsigned long pqi_wait_if_ctrl_blocked(struct pqi_ctrl_info *ctrl_info,
|
|
unsigned long timeout_msecs)
|
|
{
|
|
unsigned long remaining_msecs;
|
|
|
|
if (!pqi_ctrl_blocked(ctrl_info))
|
|
return timeout_msecs;
|
|
|
|
atomic_inc(&ctrl_info->num_blocked_threads);
|
|
|
|
if (timeout_msecs == NO_TIMEOUT) {
|
|
wait_event(ctrl_info->block_requests_wait,
|
|
!pqi_ctrl_blocked(ctrl_info));
|
|
remaining_msecs = timeout_msecs;
|
|
} else {
|
|
unsigned long remaining_jiffies;
|
|
|
|
remaining_jiffies =
|
|
wait_event_timeout(ctrl_info->block_requests_wait,
|
|
!pqi_ctrl_blocked(ctrl_info),
|
|
msecs_to_jiffies(timeout_msecs));
|
|
remaining_msecs = jiffies_to_msecs(remaining_jiffies);
|
|
}
|
|
|
|
atomic_dec(&ctrl_info->num_blocked_threads);
|
|
|
|
return remaining_msecs;
|
|
}
|
|
|
|
static inline void pqi_ctrl_busy(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
atomic_inc(&ctrl_info->num_busy_threads);
|
|
}
|
|
|
|
static inline void pqi_ctrl_unbusy(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
atomic_dec(&ctrl_info->num_busy_threads);
|
|
}
|
|
|
|
static inline void pqi_ctrl_wait_until_quiesced(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
while (atomic_read(&ctrl_info->num_busy_threads) >
|
|
atomic_read(&ctrl_info->num_blocked_threads))
|
|
usleep_range(1000, 2000);
|
|
}
|
|
|
|
static inline bool pqi_device_offline(struct pqi_scsi_dev *device)
|
|
{
|
|
return device->device_offline;
|
|
}
|
|
|
|
static inline void pqi_device_reset_start(struct pqi_scsi_dev *device)
|
|
{
|
|
device->in_reset = true;
|
|
}
|
|
|
|
static inline void pqi_device_reset_done(struct pqi_scsi_dev *device)
|
|
{
|
|
device->in_reset = false;
|
|
}
|
|
|
|
static inline bool pqi_device_in_reset(struct pqi_scsi_dev *device)
|
|
{
|
|
return device->in_reset;
|
|
}
|
|
|
|
static inline void pqi_schedule_rescan_worker_with_delay(
|
|
struct pqi_ctrl_info *ctrl_info, unsigned long delay)
|
|
{
|
|
if (pqi_ctrl_offline(ctrl_info))
|
|
return;
|
|
|
|
schedule_delayed_work(&ctrl_info->rescan_work, delay);
|
|
}
|
|
|
|
static inline void pqi_schedule_rescan_worker(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
pqi_schedule_rescan_worker_with_delay(ctrl_info, 0);
|
|
}
|
|
|
|
#define PQI_RESCAN_WORK_DELAY (10 * HZ)
|
|
|
|
static inline void pqi_schedule_rescan_worker_delayed(
|
|
struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
pqi_schedule_rescan_worker_with_delay(ctrl_info, PQI_RESCAN_WORK_DELAY);
|
|
}
|
|
|
|
static inline void pqi_cancel_rescan_worker(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
cancel_delayed_work_sync(&ctrl_info->rescan_work);
|
|
}
|
|
|
|
static inline u32 pqi_read_heartbeat_counter(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
if (!ctrl_info->heartbeat_counter)
|
|
return 0;
|
|
|
|
return readl(ctrl_info->heartbeat_counter);
|
|
}
|
|
|
|
static int pqi_map_single(struct pci_dev *pci_dev,
|
|
struct pqi_sg_descriptor *sg_descriptor, void *buffer,
|
|
size_t buffer_length, int data_direction)
|
|
{
|
|
dma_addr_t bus_address;
|
|
|
|
if (!buffer || buffer_length == 0 || data_direction == PCI_DMA_NONE)
|
|
return 0;
|
|
|
|
bus_address = pci_map_single(pci_dev, buffer, buffer_length,
|
|
data_direction);
|
|
if (pci_dma_mapping_error(pci_dev, bus_address))
|
|
return -ENOMEM;
|
|
|
|
put_unaligned_le64((u64)bus_address, &sg_descriptor->address);
|
|
put_unaligned_le32(buffer_length, &sg_descriptor->length);
|
|
put_unaligned_le32(CISS_SG_LAST, &sg_descriptor->flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void pqi_pci_unmap(struct pci_dev *pci_dev,
|
|
struct pqi_sg_descriptor *descriptors, int num_descriptors,
|
|
int data_direction)
|
|
{
|
|
int i;
|
|
|
|
if (data_direction == PCI_DMA_NONE)
|
|
return;
|
|
|
|
for (i = 0; i < num_descriptors; i++)
|
|
pci_unmap_single(pci_dev,
|
|
(dma_addr_t)get_unaligned_le64(&descriptors[i].address),
|
|
get_unaligned_le32(&descriptors[i].length),
|
|
data_direction);
|
|
}
|
|
|
|
static int pqi_build_raid_path_request(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_raid_path_request *request, u8 cmd,
|
|
u8 *scsi3addr, void *buffer, size_t buffer_length,
|
|
u16 vpd_page, int *pci_direction)
|
|
{
|
|
u8 *cdb;
|
|
int pci_dir;
|
|
|
|
memset(request, 0, sizeof(*request));
|
|
|
|
request->header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO;
|
|
put_unaligned_le16(offsetof(struct pqi_raid_path_request,
|
|
sg_descriptors[1]) - PQI_REQUEST_HEADER_LENGTH,
|
|
&request->header.iu_length);
|
|
put_unaligned_le32(buffer_length, &request->buffer_length);
|
|
memcpy(request->lun_number, scsi3addr, sizeof(request->lun_number));
|
|
request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
|
|
request->additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_0;
|
|
|
|
cdb = request->cdb;
|
|
|
|
switch (cmd) {
|
|
case INQUIRY:
|
|
request->data_direction = SOP_READ_FLAG;
|
|
cdb[0] = INQUIRY;
|
|
if (vpd_page & VPD_PAGE) {
|
|
cdb[1] = 0x1;
|
|
cdb[2] = (u8)vpd_page;
|
|
}
|
|
cdb[4] = (u8)buffer_length;
|
|
break;
|
|
case CISS_REPORT_LOG:
|
|
case CISS_REPORT_PHYS:
|
|
request->data_direction = SOP_READ_FLAG;
|
|
cdb[0] = cmd;
|
|
if (cmd == CISS_REPORT_PHYS)
|
|
cdb[1] = CISS_REPORT_PHYS_EXTENDED;
|
|
else
|
|
cdb[1] = CISS_REPORT_LOG_EXTENDED;
|
|
put_unaligned_be32(buffer_length, &cdb[6]);
|
|
break;
|
|
case CISS_GET_RAID_MAP:
|
|
request->data_direction = SOP_READ_FLAG;
|
|
cdb[0] = CISS_READ;
|
|
cdb[1] = CISS_GET_RAID_MAP;
|
|
put_unaligned_be32(buffer_length, &cdb[6]);
|
|
break;
|
|
case SA_FLUSH_CACHE:
|
|
request->data_direction = SOP_WRITE_FLAG;
|
|
cdb[0] = BMIC_WRITE;
|
|
cdb[6] = BMIC_FLUSH_CACHE;
|
|
put_unaligned_be16(buffer_length, &cdb[7]);
|
|
break;
|
|
case BMIC_IDENTIFY_CONTROLLER:
|
|
case BMIC_IDENTIFY_PHYSICAL_DEVICE:
|
|
request->data_direction = SOP_READ_FLAG;
|
|
cdb[0] = BMIC_READ;
|
|
cdb[6] = cmd;
|
|
put_unaligned_be16(buffer_length, &cdb[7]);
|
|
break;
|
|
case BMIC_WRITE_HOST_WELLNESS:
|
|
request->data_direction = SOP_WRITE_FLAG;
|
|
cdb[0] = BMIC_WRITE;
|
|
cdb[6] = cmd;
|
|
put_unaligned_be16(buffer_length, &cdb[7]);
|
|
break;
|
|
default:
|
|
dev_err(&ctrl_info->pci_dev->dev, "unknown command 0x%c\n",
|
|
cmd);
|
|
break;
|
|
}
|
|
|
|
switch (request->data_direction) {
|
|
case SOP_READ_FLAG:
|
|
pci_dir = PCI_DMA_FROMDEVICE;
|
|
break;
|
|
case SOP_WRITE_FLAG:
|
|
pci_dir = PCI_DMA_TODEVICE;
|
|
break;
|
|
case SOP_NO_DIRECTION_FLAG:
|
|
pci_dir = PCI_DMA_NONE;
|
|
break;
|
|
default:
|
|
pci_dir = PCI_DMA_BIDIRECTIONAL;
|
|
break;
|
|
}
|
|
|
|
*pci_direction = pci_dir;
|
|
|
|
return pqi_map_single(ctrl_info->pci_dev, &request->sg_descriptors[0],
|
|
buffer, buffer_length, pci_dir);
|
|
}
|
|
|
|
static inline void pqi_reinit_io_request(struct pqi_io_request *io_request)
|
|
{
|
|
io_request->scmd = NULL;
|
|
io_request->status = 0;
|
|
io_request->error_info = NULL;
|
|
io_request->raid_bypass = false;
|
|
}
|
|
|
|
static struct pqi_io_request *pqi_alloc_io_request(
|
|
struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
struct pqi_io_request *io_request;
|
|
u16 i = ctrl_info->next_io_request_slot; /* benignly racy */
|
|
|
|
while (1) {
|
|
io_request = &ctrl_info->io_request_pool[i];
|
|
if (atomic_inc_return(&io_request->refcount) == 1)
|
|
break;
|
|
atomic_dec(&io_request->refcount);
|
|
i = (i + 1) % ctrl_info->max_io_slots;
|
|
}
|
|
|
|
/* benignly racy */
|
|
ctrl_info->next_io_request_slot = (i + 1) % ctrl_info->max_io_slots;
|
|
|
|
pqi_reinit_io_request(io_request);
|
|
|
|
return io_request;
|
|
}
|
|
|
|
static void pqi_free_io_request(struct pqi_io_request *io_request)
|
|
{
|
|
atomic_dec(&io_request->refcount);
|
|
}
|
|
|
|
static int pqi_identify_controller(struct pqi_ctrl_info *ctrl_info,
|
|
struct bmic_identify_controller *buffer)
|
|
{
|
|
int rc;
|
|
int pci_direction;
|
|
struct pqi_raid_path_request request;
|
|
|
|
rc = pqi_build_raid_path_request(ctrl_info, &request,
|
|
BMIC_IDENTIFY_CONTROLLER, RAID_CTLR_LUNID, buffer,
|
|
sizeof(*buffer), 0, &pci_direction);
|
|
if (rc)
|
|
return rc;
|
|
|
|
rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0,
|
|
NULL, NO_TIMEOUT);
|
|
|
|
pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1,
|
|
pci_direction);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int pqi_scsi_inquiry(struct pqi_ctrl_info *ctrl_info,
|
|
u8 *scsi3addr, u16 vpd_page, void *buffer, size_t buffer_length)
|
|
{
|
|
int rc;
|
|
int pci_direction;
|
|
struct pqi_raid_path_request request;
|
|
|
|
rc = pqi_build_raid_path_request(ctrl_info, &request,
|
|
INQUIRY, scsi3addr, buffer, buffer_length, vpd_page,
|
|
&pci_direction);
|
|
if (rc)
|
|
return rc;
|
|
|
|
rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0,
|
|
NULL, NO_TIMEOUT);
|
|
|
|
pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1,
|
|
pci_direction);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int pqi_identify_physical_device(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_scsi_dev *device,
|
|
struct bmic_identify_physical_device *buffer,
|
|
size_t buffer_length)
|
|
{
|
|
int rc;
|
|
int pci_direction;
|
|
u16 bmic_device_index;
|
|
struct pqi_raid_path_request request;
|
|
|
|
rc = pqi_build_raid_path_request(ctrl_info, &request,
|
|
BMIC_IDENTIFY_PHYSICAL_DEVICE, RAID_CTLR_LUNID, buffer,
|
|
buffer_length, 0, &pci_direction);
|
|
if (rc)
|
|
return rc;
|
|
|
|
bmic_device_index = CISS_GET_DRIVE_NUMBER(device->scsi3addr);
|
|
request.cdb[2] = (u8)bmic_device_index;
|
|
request.cdb[9] = (u8)(bmic_device_index >> 8);
|
|
|
|
rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header,
|
|
0, NULL, NO_TIMEOUT);
|
|
|
|
pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1,
|
|
pci_direction);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int pqi_flush_cache(struct pqi_ctrl_info *ctrl_info,
|
|
enum bmic_flush_cache_shutdown_event shutdown_event)
|
|
{
|
|
int rc;
|
|
struct pqi_raid_path_request request;
|
|
int pci_direction;
|
|
struct bmic_flush_cache *flush_cache;
|
|
|
|
/*
|
|
* Don't bother trying to flush the cache if the controller is
|
|
* locked up.
|
|
*/
|
|
if (pqi_ctrl_offline(ctrl_info))
|
|
return -ENXIO;
|
|
|
|
flush_cache = kzalloc(sizeof(*flush_cache), GFP_KERNEL);
|
|
if (!flush_cache)
|
|
return -ENOMEM;
|
|
|
|
flush_cache->shutdown_event = shutdown_event;
|
|
|
|
rc = pqi_build_raid_path_request(ctrl_info, &request,
|
|
SA_FLUSH_CACHE, RAID_CTLR_LUNID, flush_cache,
|
|
sizeof(*flush_cache), 0, &pci_direction);
|
|
if (rc)
|
|
goto out;
|
|
|
|
rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header,
|
|
0, NULL, NO_TIMEOUT);
|
|
|
|
pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1,
|
|
pci_direction);
|
|
|
|
out:
|
|
kfree(flush_cache);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int pqi_write_host_wellness(struct pqi_ctrl_info *ctrl_info,
|
|
void *buffer, size_t buffer_length)
|
|
{
|
|
int rc;
|
|
struct pqi_raid_path_request request;
|
|
int pci_direction;
|
|
|
|
rc = pqi_build_raid_path_request(ctrl_info, &request,
|
|
BMIC_WRITE_HOST_WELLNESS, RAID_CTLR_LUNID, buffer,
|
|
buffer_length, 0, &pci_direction);
|
|
if (rc)
|
|
return rc;
|
|
|
|
rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header,
|
|
0, NULL, NO_TIMEOUT);
|
|
|
|
pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1,
|
|
pci_direction);
|
|
|
|
return rc;
|
|
}
|
|
|
|
#pragma pack(1)
|
|
|
|
struct bmic_host_wellness_driver_version {
|
|
u8 start_tag[4];
|
|
u8 driver_version_tag[2];
|
|
__le16 driver_version_length;
|
|
char driver_version[32];
|
|
u8 end_tag[2];
|
|
};
|
|
|
|
#pragma pack()
|
|
|
|
static int pqi_write_driver_version_to_host_wellness(
|
|
struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
int rc;
|
|
struct bmic_host_wellness_driver_version *buffer;
|
|
size_t buffer_length;
|
|
|
|
buffer_length = sizeof(*buffer);
|
|
|
|
buffer = kmalloc(buffer_length, GFP_KERNEL);
|
|
if (!buffer)
|
|
return -ENOMEM;
|
|
|
|
buffer->start_tag[0] = '<';
|
|
buffer->start_tag[1] = 'H';
|
|
buffer->start_tag[2] = 'W';
|
|
buffer->start_tag[3] = '>';
|
|
buffer->driver_version_tag[0] = 'D';
|
|
buffer->driver_version_tag[1] = 'V';
|
|
put_unaligned_le16(sizeof(buffer->driver_version),
|
|
&buffer->driver_version_length);
|
|
strncpy(buffer->driver_version, "Linux " DRIVER_VERSION,
|
|
sizeof(buffer->driver_version) - 1);
|
|
buffer->driver_version[sizeof(buffer->driver_version) - 1] = '\0';
|
|
buffer->end_tag[0] = 'Z';
|
|
buffer->end_tag[1] = 'Z';
|
|
|
|
rc = pqi_write_host_wellness(ctrl_info, buffer, buffer_length);
|
|
|
|
kfree(buffer);
|
|
|
|
return rc;
|
|
}
|
|
|
|
#pragma pack(1)
|
|
|
|
struct bmic_host_wellness_time {
|
|
u8 start_tag[4];
|
|
u8 time_tag[2];
|
|
__le16 time_length;
|
|
u8 time[8];
|
|
u8 dont_write_tag[2];
|
|
u8 end_tag[2];
|
|
};
|
|
|
|
#pragma pack()
|
|
|
|
static int pqi_write_current_time_to_host_wellness(
|
|
struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
int rc;
|
|
struct bmic_host_wellness_time *buffer;
|
|
size_t buffer_length;
|
|
time64_t local_time;
|
|
unsigned int year;
|
|
struct tm tm;
|
|
|
|
buffer_length = sizeof(*buffer);
|
|
|
|
buffer = kmalloc(buffer_length, GFP_KERNEL);
|
|
if (!buffer)
|
|
return -ENOMEM;
|
|
|
|
buffer->start_tag[0] = '<';
|
|
buffer->start_tag[1] = 'H';
|
|
buffer->start_tag[2] = 'W';
|
|
buffer->start_tag[3] = '>';
|
|
buffer->time_tag[0] = 'T';
|
|
buffer->time_tag[1] = 'D';
|
|
put_unaligned_le16(sizeof(buffer->time),
|
|
&buffer->time_length);
|
|
|
|
local_time = ktime_get_real_seconds();
|
|
time64_to_tm(local_time, -sys_tz.tz_minuteswest * 60, &tm);
|
|
year = tm.tm_year + 1900;
|
|
|
|
buffer->time[0] = bin2bcd(tm.tm_hour);
|
|
buffer->time[1] = bin2bcd(tm.tm_min);
|
|
buffer->time[2] = bin2bcd(tm.tm_sec);
|
|
buffer->time[3] = 0;
|
|
buffer->time[4] = bin2bcd(tm.tm_mon + 1);
|
|
buffer->time[5] = bin2bcd(tm.tm_mday);
|
|
buffer->time[6] = bin2bcd(year / 100);
|
|
buffer->time[7] = bin2bcd(year % 100);
|
|
|
|
buffer->dont_write_tag[0] = 'D';
|
|
buffer->dont_write_tag[1] = 'W';
|
|
buffer->end_tag[0] = 'Z';
|
|
buffer->end_tag[1] = 'Z';
|
|
|
|
rc = pqi_write_host_wellness(ctrl_info, buffer, buffer_length);
|
|
|
|
kfree(buffer);
|
|
|
|
return rc;
|
|
}
|
|
|
|
#define PQI_UPDATE_TIME_WORK_INTERVAL (24UL * 60 * 60 * HZ)
|
|
|
|
static void pqi_update_time_worker(struct work_struct *work)
|
|
{
|
|
int rc;
|
|
struct pqi_ctrl_info *ctrl_info;
|
|
|
|
ctrl_info = container_of(to_delayed_work(work), struct pqi_ctrl_info,
|
|
update_time_work);
|
|
|
|
if (pqi_ctrl_offline(ctrl_info))
|
|
return;
|
|
|
|
rc = pqi_write_current_time_to_host_wellness(ctrl_info);
|
|
if (rc)
|
|
dev_warn(&ctrl_info->pci_dev->dev,
|
|
"error updating time on controller\n");
|
|
|
|
schedule_delayed_work(&ctrl_info->update_time_work,
|
|
PQI_UPDATE_TIME_WORK_INTERVAL);
|
|
}
|
|
|
|
static inline void pqi_schedule_update_time_worker(
|
|
struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
schedule_delayed_work(&ctrl_info->update_time_work, 0);
|
|
}
|
|
|
|
static inline void pqi_cancel_update_time_worker(
|
|
struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
cancel_delayed_work_sync(&ctrl_info->update_time_work);
|
|
}
|
|
|
|
static int pqi_report_luns(struct pqi_ctrl_info *ctrl_info, u8 cmd,
|
|
void *buffer, size_t buffer_length)
|
|
{
|
|
int rc;
|
|
int pci_direction;
|
|
struct pqi_raid_path_request request;
|
|
|
|
rc = pqi_build_raid_path_request(ctrl_info, &request,
|
|
cmd, RAID_CTLR_LUNID, buffer, buffer_length, 0, &pci_direction);
|
|
if (rc)
|
|
return rc;
|
|
|
|
rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0,
|
|
NULL, NO_TIMEOUT);
|
|
|
|
pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1,
|
|
pci_direction);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int pqi_report_phys_logical_luns(struct pqi_ctrl_info *ctrl_info, u8 cmd,
|
|
void **buffer)
|
|
{
|
|
int rc;
|
|
size_t lun_list_length;
|
|
size_t lun_data_length;
|
|
size_t new_lun_list_length;
|
|
void *lun_data = NULL;
|
|
struct report_lun_header *report_lun_header;
|
|
|
|
report_lun_header = kmalloc(sizeof(*report_lun_header), GFP_KERNEL);
|
|
if (!report_lun_header) {
|
|
rc = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
rc = pqi_report_luns(ctrl_info, cmd, report_lun_header,
|
|
sizeof(*report_lun_header));
|
|
if (rc)
|
|
goto out;
|
|
|
|
lun_list_length = get_unaligned_be32(&report_lun_header->list_length);
|
|
|
|
again:
|
|
lun_data_length = sizeof(struct report_lun_header) + lun_list_length;
|
|
|
|
lun_data = kmalloc(lun_data_length, GFP_KERNEL);
|
|
if (!lun_data) {
|
|
rc = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
if (lun_list_length == 0) {
|
|
memcpy(lun_data, report_lun_header, sizeof(*report_lun_header));
|
|
goto out;
|
|
}
|
|
|
|
rc = pqi_report_luns(ctrl_info, cmd, lun_data, lun_data_length);
|
|
if (rc)
|
|
goto out;
|
|
|
|
new_lun_list_length = get_unaligned_be32(
|
|
&((struct report_lun_header *)lun_data)->list_length);
|
|
|
|
if (new_lun_list_length > lun_list_length) {
|
|
lun_list_length = new_lun_list_length;
|
|
kfree(lun_data);
|
|
goto again;
|
|
}
|
|
|
|
out:
|
|
kfree(report_lun_header);
|
|
|
|
if (rc) {
|
|
kfree(lun_data);
|
|
lun_data = NULL;
|
|
}
|
|
|
|
*buffer = lun_data;
|
|
|
|
return rc;
|
|
}
|
|
|
|
static inline int pqi_report_phys_luns(struct pqi_ctrl_info *ctrl_info,
|
|
void **buffer)
|
|
{
|
|
return pqi_report_phys_logical_luns(ctrl_info, CISS_REPORT_PHYS,
|
|
buffer);
|
|
}
|
|
|
|
static inline int pqi_report_logical_luns(struct pqi_ctrl_info *ctrl_info,
|
|
void **buffer)
|
|
{
|
|
return pqi_report_phys_logical_luns(ctrl_info, CISS_REPORT_LOG, buffer);
|
|
}
|
|
|
|
static int pqi_get_device_lists(struct pqi_ctrl_info *ctrl_info,
|
|
struct report_phys_lun_extended **physdev_list,
|
|
struct report_log_lun_extended **logdev_list)
|
|
{
|
|
int rc;
|
|
size_t logdev_list_length;
|
|
size_t logdev_data_length;
|
|
struct report_log_lun_extended *internal_logdev_list;
|
|
struct report_log_lun_extended *logdev_data;
|
|
struct report_lun_header report_lun_header;
|
|
|
|
rc = pqi_report_phys_luns(ctrl_info, (void **)physdev_list);
|
|
if (rc)
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"report physical LUNs failed\n");
|
|
|
|
rc = pqi_report_logical_luns(ctrl_info, (void **)logdev_list);
|
|
if (rc)
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"report logical LUNs failed\n");
|
|
|
|
/*
|
|
* Tack the controller itself onto the end of the logical device list.
|
|
*/
|
|
|
|
logdev_data = *logdev_list;
|
|
|
|
if (logdev_data) {
|
|
logdev_list_length =
|
|
get_unaligned_be32(&logdev_data->header.list_length);
|
|
} else {
|
|
memset(&report_lun_header, 0, sizeof(report_lun_header));
|
|
logdev_data =
|
|
(struct report_log_lun_extended *)&report_lun_header;
|
|
logdev_list_length = 0;
|
|
}
|
|
|
|
logdev_data_length = sizeof(struct report_lun_header) +
|
|
logdev_list_length;
|
|
|
|
internal_logdev_list = kmalloc(logdev_data_length +
|
|
sizeof(struct report_log_lun_extended), GFP_KERNEL);
|
|
if (!internal_logdev_list) {
|
|
kfree(*logdev_list);
|
|
*logdev_list = NULL;
|
|
return -ENOMEM;
|
|
}
|
|
|
|
memcpy(internal_logdev_list, logdev_data, logdev_data_length);
|
|
memset((u8 *)internal_logdev_list + logdev_data_length, 0,
|
|
sizeof(struct report_log_lun_extended_entry));
|
|
put_unaligned_be32(logdev_list_length +
|
|
sizeof(struct report_log_lun_extended_entry),
|
|
&internal_logdev_list->header.list_length);
|
|
|
|
kfree(*logdev_list);
|
|
*logdev_list = internal_logdev_list;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline void pqi_set_bus_target_lun(struct pqi_scsi_dev *device,
|
|
int bus, int target, int lun)
|
|
{
|
|
device->bus = bus;
|
|
device->target = target;
|
|
device->lun = lun;
|
|
}
|
|
|
|
static void pqi_assign_bus_target_lun(struct pqi_scsi_dev *device)
|
|
{
|
|
u8 *scsi3addr;
|
|
u32 lunid;
|
|
int bus;
|
|
int target;
|
|
int lun;
|
|
|
|
scsi3addr = device->scsi3addr;
|
|
lunid = get_unaligned_le32(scsi3addr);
|
|
|
|
if (pqi_is_hba_lunid(scsi3addr)) {
|
|
/* The specified device is the controller. */
|
|
pqi_set_bus_target_lun(device, PQI_HBA_BUS, 0, lunid & 0x3fff);
|
|
device->target_lun_valid = true;
|
|
return;
|
|
}
|
|
|
|
if (pqi_is_logical_device(device)) {
|
|
if (device->is_external_raid_device) {
|
|
bus = PQI_EXTERNAL_RAID_VOLUME_BUS;
|
|
target = (lunid >> 16) & 0x3fff;
|
|
lun = lunid & 0xff;
|
|
} else {
|
|
bus = PQI_RAID_VOLUME_BUS;
|
|
target = 0;
|
|
lun = lunid & 0x3fff;
|
|
}
|
|
pqi_set_bus_target_lun(device, bus, target, lun);
|
|
device->target_lun_valid = true;
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Defer target and LUN assignment for non-controller physical devices
|
|
* because the SAS transport layer will make these assignments later.
|
|
*/
|
|
pqi_set_bus_target_lun(device, PQI_PHYSICAL_DEVICE_BUS, 0, 0);
|
|
}
|
|
|
|
static void pqi_get_raid_level(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_scsi_dev *device)
|
|
{
|
|
int rc;
|
|
u8 raid_level;
|
|
u8 *buffer;
|
|
|
|
raid_level = SA_RAID_UNKNOWN;
|
|
|
|
buffer = kmalloc(64, GFP_KERNEL);
|
|
if (buffer) {
|
|
rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr,
|
|
VPD_PAGE | CISS_VPD_LV_DEVICE_GEOMETRY, buffer, 64);
|
|
if (rc == 0) {
|
|
raid_level = buffer[8];
|
|
if (raid_level > SA_RAID_MAX)
|
|
raid_level = SA_RAID_UNKNOWN;
|
|
}
|
|
kfree(buffer);
|
|
}
|
|
|
|
device->raid_level = raid_level;
|
|
}
|
|
|
|
static int pqi_validate_raid_map(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_scsi_dev *device, struct raid_map *raid_map)
|
|
{
|
|
char *err_msg;
|
|
u32 raid_map_size;
|
|
u32 r5or6_blocks_per_row;
|
|
unsigned int num_phys_disks;
|
|
unsigned int num_raid_map_entries;
|
|
|
|
raid_map_size = get_unaligned_le32(&raid_map->structure_size);
|
|
|
|
if (raid_map_size < offsetof(struct raid_map, disk_data)) {
|
|
err_msg = "RAID map too small";
|
|
goto bad_raid_map;
|
|
}
|
|
|
|
if (raid_map_size > sizeof(*raid_map)) {
|
|
err_msg = "RAID map too large";
|
|
goto bad_raid_map;
|
|
}
|
|
|
|
num_phys_disks = get_unaligned_le16(&raid_map->layout_map_count) *
|
|
(get_unaligned_le16(&raid_map->data_disks_per_row) +
|
|
get_unaligned_le16(&raid_map->metadata_disks_per_row));
|
|
num_raid_map_entries = num_phys_disks *
|
|
get_unaligned_le16(&raid_map->row_cnt);
|
|
|
|
if (num_raid_map_entries > RAID_MAP_MAX_ENTRIES) {
|
|
err_msg = "invalid number of map entries in RAID map";
|
|
goto bad_raid_map;
|
|
}
|
|
|
|
if (device->raid_level == SA_RAID_1) {
|
|
if (get_unaligned_le16(&raid_map->layout_map_count) != 2) {
|
|
err_msg = "invalid RAID-1 map";
|
|
goto bad_raid_map;
|
|
}
|
|
} else if (device->raid_level == SA_RAID_ADM) {
|
|
if (get_unaligned_le16(&raid_map->layout_map_count) != 3) {
|
|
err_msg = "invalid RAID-1(ADM) map";
|
|
goto bad_raid_map;
|
|
}
|
|
} else if ((device->raid_level == SA_RAID_5 ||
|
|
device->raid_level == SA_RAID_6) &&
|
|
get_unaligned_le16(&raid_map->layout_map_count) > 1) {
|
|
/* RAID 50/60 */
|
|
r5or6_blocks_per_row =
|
|
get_unaligned_le16(&raid_map->strip_size) *
|
|
get_unaligned_le16(&raid_map->data_disks_per_row);
|
|
if (r5or6_blocks_per_row == 0) {
|
|
err_msg = "invalid RAID-5 or RAID-6 map";
|
|
goto bad_raid_map;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
|
|
bad_raid_map:
|
|
dev_warn(&ctrl_info->pci_dev->dev,
|
|
"logical device %08x%08x %s\n",
|
|
*((u32 *)&device->scsi3addr),
|
|
*((u32 *)&device->scsi3addr[4]), err_msg);
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int pqi_get_raid_map(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_scsi_dev *device)
|
|
{
|
|
int rc;
|
|
int pci_direction;
|
|
struct pqi_raid_path_request request;
|
|
struct raid_map *raid_map;
|
|
|
|
raid_map = kmalloc(sizeof(*raid_map), GFP_KERNEL);
|
|
if (!raid_map)
|
|
return -ENOMEM;
|
|
|
|
rc = pqi_build_raid_path_request(ctrl_info, &request,
|
|
CISS_GET_RAID_MAP, device->scsi3addr, raid_map,
|
|
sizeof(*raid_map), 0, &pci_direction);
|
|
if (rc)
|
|
goto error;
|
|
|
|
rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0,
|
|
NULL, NO_TIMEOUT);
|
|
|
|
pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1,
|
|
pci_direction);
|
|
|
|
if (rc)
|
|
goto error;
|
|
|
|
rc = pqi_validate_raid_map(ctrl_info, device, raid_map);
|
|
if (rc)
|
|
goto error;
|
|
|
|
device->raid_map = raid_map;
|
|
|
|
return 0;
|
|
|
|
error:
|
|
kfree(raid_map);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void pqi_get_raid_bypass_status(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_scsi_dev *device)
|
|
{
|
|
int rc;
|
|
u8 *buffer;
|
|
u8 bypass_status;
|
|
|
|
buffer = kmalloc(64, GFP_KERNEL);
|
|
if (!buffer)
|
|
return;
|
|
|
|
rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr,
|
|
VPD_PAGE | CISS_VPD_LV_BYPASS_STATUS, buffer, 64);
|
|
if (rc)
|
|
goto out;
|
|
|
|
#define RAID_BYPASS_STATUS 4
|
|
#define RAID_BYPASS_CONFIGURED 0x1
|
|
#define RAID_BYPASS_ENABLED 0x2
|
|
|
|
bypass_status = buffer[RAID_BYPASS_STATUS];
|
|
device->raid_bypass_configured =
|
|
(bypass_status & RAID_BYPASS_CONFIGURED) != 0;
|
|
if (device->raid_bypass_configured &&
|
|
(bypass_status & RAID_BYPASS_ENABLED) &&
|
|
pqi_get_raid_map(ctrl_info, device) == 0)
|
|
device->raid_bypass_enabled = true;
|
|
|
|
out:
|
|
kfree(buffer);
|
|
}
|
|
|
|
/*
|
|
* Use vendor-specific VPD to determine online/offline status of a volume.
|
|
*/
|
|
|
|
static void pqi_get_volume_status(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_scsi_dev *device)
|
|
{
|
|
int rc;
|
|
size_t page_length;
|
|
u8 volume_status = CISS_LV_STATUS_UNAVAILABLE;
|
|
bool volume_offline = true;
|
|
u32 volume_flags;
|
|
struct ciss_vpd_logical_volume_status *vpd;
|
|
|
|
vpd = kmalloc(sizeof(*vpd), GFP_KERNEL);
|
|
if (!vpd)
|
|
goto no_buffer;
|
|
|
|
rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr,
|
|
VPD_PAGE | CISS_VPD_LV_STATUS, vpd, sizeof(*vpd));
|
|
if (rc)
|
|
goto out;
|
|
|
|
page_length = offsetof(struct ciss_vpd_logical_volume_status,
|
|
volume_status) + vpd->page_length;
|
|
if (page_length < sizeof(*vpd))
|
|
goto out;
|
|
|
|
volume_status = vpd->volume_status;
|
|
volume_flags = get_unaligned_be32(&vpd->flags);
|
|
volume_offline = (volume_flags & CISS_LV_FLAGS_NO_HOST_IO) != 0;
|
|
|
|
out:
|
|
kfree(vpd);
|
|
no_buffer:
|
|
device->volume_status = volume_status;
|
|
device->volume_offline = volume_offline;
|
|
}
|
|
|
|
static int pqi_get_device_info(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_scsi_dev *device)
|
|
{
|
|
int rc;
|
|
u8 *buffer;
|
|
|
|
buffer = kmalloc(64, GFP_KERNEL);
|
|
if (!buffer)
|
|
return -ENOMEM;
|
|
|
|
/* Send an inquiry to the device to see what it is. */
|
|
rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, 0, buffer, 64);
|
|
if (rc)
|
|
goto out;
|
|
|
|
scsi_sanitize_inquiry_string(&buffer[8], 8);
|
|
scsi_sanitize_inquiry_string(&buffer[16], 16);
|
|
|
|
device->devtype = buffer[0] & 0x1f;
|
|
memcpy(device->vendor, &buffer[8], sizeof(device->vendor));
|
|
memcpy(device->model, &buffer[16], sizeof(device->model));
|
|
|
|
if (pqi_is_logical_device(device) && device->devtype == TYPE_DISK) {
|
|
if (device->is_external_raid_device) {
|
|
device->raid_level = SA_RAID_UNKNOWN;
|
|
device->volume_status = CISS_LV_OK;
|
|
device->volume_offline = false;
|
|
} else {
|
|
pqi_get_raid_level(ctrl_info, device);
|
|
pqi_get_raid_bypass_status(ctrl_info, device);
|
|
pqi_get_volume_status(ctrl_info, device);
|
|
}
|
|
}
|
|
|
|
out:
|
|
kfree(buffer);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void pqi_get_physical_disk_info(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_scsi_dev *device,
|
|
struct bmic_identify_physical_device *id_phys)
|
|
{
|
|
int rc;
|
|
|
|
memset(id_phys, 0, sizeof(*id_phys));
|
|
|
|
rc = pqi_identify_physical_device(ctrl_info, device,
|
|
id_phys, sizeof(*id_phys));
|
|
if (rc) {
|
|
device->queue_depth = PQI_PHYSICAL_DISK_DEFAULT_MAX_QUEUE_DEPTH;
|
|
return;
|
|
}
|
|
|
|
device->queue_depth =
|
|
get_unaligned_le16(&id_phys->current_queue_depth_limit);
|
|
device->device_type = id_phys->device_type;
|
|
device->active_path_index = id_phys->active_path_number;
|
|
device->path_map = id_phys->redundant_path_present_map;
|
|
memcpy(&device->box,
|
|
&id_phys->alternate_paths_phys_box_on_port,
|
|
sizeof(device->box));
|
|
memcpy(&device->phys_connector,
|
|
&id_phys->alternate_paths_phys_connector,
|
|
sizeof(device->phys_connector));
|
|
device->bay = id_phys->phys_bay_in_box;
|
|
}
|
|
|
|
static void pqi_show_volume_status(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_scsi_dev *device)
|
|
{
|
|
char *status;
|
|
static const char unknown_state_str[] =
|
|
"Volume is in an unknown state (%u)";
|
|
char unknown_state_buffer[sizeof(unknown_state_str) + 10];
|
|
|
|
switch (device->volume_status) {
|
|
case CISS_LV_OK:
|
|
status = "Volume online";
|
|
break;
|
|
case CISS_LV_FAILED:
|
|
status = "Volume failed";
|
|
break;
|
|
case CISS_LV_NOT_CONFIGURED:
|
|
status = "Volume not configured";
|
|
break;
|
|
case CISS_LV_DEGRADED:
|
|
status = "Volume degraded";
|
|
break;
|
|
case CISS_LV_READY_FOR_RECOVERY:
|
|
status = "Volume ready for recovery operation";
|
|
break;
|
|
case CISS_LV_UNDERGOING_RECOVERY:
|
|
status = "Volume undergoing recovery";
|
|
break;
|
|
case CISS_LV_WRONG_PHYSICAL_DRIVE_REPLACED:
|
|
status = "Wrong physical drive was replaced";
|
|
break;
|
|
case CISS_LV_PHYSICAL_DRIVE_CONNECTION_PROBLEM:
|
|
status = "A physical drive not properly connected";
|
|
break;
|
|
case CISS_LV_HARDWARE_OVERHEATING:
|
|
status = "Hardware is overheating";
|
|
break;
|
|
case CISS_LV_HARDWARE_HAS_OVERHEATED:
|
|
status = "Hardware has overheated";
|
|
break;
|
|
case CISS_LV_UNDERGOING_EXPANSION:
|
|
status = "Volume undergoing expansion";
|
|
break;
|
|
case CISS_LV_NOT_AVAILABLE:
|
|
status = "Volume waiting for transforming volume";
|
|
break;
|
|
case CISS_LV_QUEUED_FOR_EXPANSION:
|
|
status = "Volume queued for expansion";
|
|
break;
|
|
case CISS_LV_DISABLED_SCSI_ID_CONFLICT:
|
|
status = "Volume disabled due to SCSI ID conflict";
|
|
break;
|
|
case CISS_LV_EJECTED:
|
|
status = "Volume has been ejected";
|
|
break;
|
|
case CISS_LV_UNDERGOING_ERASE:
|
|
status = "Volume undergoing background erase";
|
|
break;
|
|
case CISS_LV_READY_FOR_PREDICTIVE_SPARE_REBUILD:
|
|
status = "Volume ready for predictive spare rebuild";
|
|
break;
|
|
case CISS_LV_UNDERGOING_RPI:
|
|
status = "Volume undergoing rapid parity initialization";
|
|
break;
|
|
case CISS_LV_PENDING_RPI:
|
|
status = "Volume queued for rapid parity initialization";
|
|
break;
|
|
case CISS_LV_ENCRYPTED_NO_KEY:
|
|
status = "Encrypted volume inaccessible - key not present";
|
|
break;
|
|
case CISS_LV_UNDERGOING_ENCRYPTION:
|
|
status = "Volume undergoing encryption process";
|
|
break;
|
|
case CISS_LV_UNDERGOING_ENCRYPTION_REKEYING:
|
|
status = "Volume undergoing encryption re-keying process";
|
|
break;
|
|
case CISS_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER:
|
|
status = "Volume encrypted but encryption is disabled";
|
|
break;
|
|
case CISS_LV_PENDING_ENCRYPTION:
|
|
status = "Volume pending migration to encrypted state";
|
|
break;
|
|
case CISS_LV_PENDING_ENCRYPTION_REKEYING:
|
|
status = "Volume pending encryption rekeying";
|
|
break;
|
|
case CISS_LV_NOT_SUPPORTED:
|
|
status = "Volume not supported on this controller";
|
|
break;
|
|
case CISS_LV_STATUS_UNAVAILABLE:
|
|
status = "Volume status not available";
|
|
break;
|
|
default:
|
|
snprintf(unknown_state_buffer, sizeof(unknown_state_buffer),
|
|
unknown_state_str, device->volume_status);
|
|
status = unknown_state_buffer;
|
|
break;
|
|
}
|
|
|
|
dev_info(&ctrl_info->pci_dev->dev,
|
|
"scsi %d:%d:%d:%d %s\n",
|
|
ctrl_info->scsi_host->host_no,
|
|
device->bus, device->target, device->lun, status);
|
|
}
|
|
|
|
static void pqi_rescan_worker(struct work_struct *work)
|
|
{
|
|
struct pqi_ctrl_info *ctrl_info;
|
|
|
|
ctrl_info = container_of(to_delayed_work(work), struct pqi_ctrl_info,
|
|
rescan_work);
|
|
|
|
pqi_scan_scsi_devices(ctrl_info);
|
|
}
|
|
|
|
static int pqi_add_device(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_scsi_dev *device)
|
|
{
|
|
int rc;
|
|
|
|
if (pqi_is_logical_device(device))
|
|
rc = scsi_add_device(ctrl_info->scsi_host, device->bus,
|
|
device->target, device->lun);
|
|
else
|
|
rc = pqi_add_sas_device(ctrl_info->sas_host, device);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static inline void pqi_remove_device(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_scsi_dev *device)
|
|
{
|
|
if (pqi_is_logical_device(device))
|
|
scsi_remove_device(device->sdev);
|
|
else
|
|
pqi_remove_sas_device(device);
|
|
}
|
|
|
|
/* Assumes the SCSI device list lock is held. */
|
|
|
|
static struct pqi_scsi_dev *pqi_find_scsi_dev(struct pqi_ctrl_info *ctrl_info,
|
|
int bus, int target, int lun)
|
|
{
|
|
struct pqi_scsi_dev *device;
|
|
|
|
list_for_each_entry(device, &ctrl_info->scsi_device_list,
|
|
scsi_device_list_entry)
|
|
if (device->bus == bus && device->target == target &&
|
|
device->lun == lun)
|
|
return device;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static inline bool pqi_device_equal(struct pqi_scsi_dev *dev1,
|
|
struct pqi_scsi_dev *dev2)
|
|
{
|
|
if (dev1->is_physical_device != dev2->is_physical_device)
|
|
return false;
|
|
|
|
if (dev1->is_physical_device)
|
|
return dev1->wwid == dev2->wwid;
|
|
|
|
return memcmp(dev1->volume_id, dev2->volume_id,
|
|
sizeof(dev1->volume_id)) == 0;
|
|
}
|
|
|
|
enum pqi_find_result {
|
|
DEVICE_NOT_FOUND,
|
|
DEVICE_CHANGED,
|
|
DEVICE_SAME,
|
|
};
|
|
|
|
static enum pqi_find_result pqi_scsi_find_entry(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_scsi_dev *device_to_find,
|
|
struct pqi_scsi_dev **matching_device)
|
|
{
|
|
struct pqi_scsi_dev *device;
|
|
|
|
list_for_each_entry(device, &ctrl_info->scsi_device_list,
|
|
scsi_device_list_entry) {
|
|
if (pqi_scsi3addr_equal(device_to_find->scsi3addr,
|
|
device->scsi3addr)) {
|
|
*matching_device = device;
|
|
if (pqi_device_equal(device_to_find, device)) {
|
|
if (device_to_find->volume_offline)
|
|
return DEVICE_CHANGED;
|
|
return DEVICE_SAME;
|
|
}
|
|
return DEVICE_CHANGED;
|
|
}
|
|
}
|
|
|
|
return DEVICE_NOT_FOUND;
|
|
}
|
|
|
|
#define PQI_DEV_INFO_BUFFER_LENGTH 128
|
|
|
|
static void pqi_dev_info(struct pqi_ctrl_info *ctrl_info,
|
|
char *action, struct pqi_scsi_dev *device)
|
|
{
|
|
ssize_t count;
|
|
char buffer[PQI_DEV_INFO_BUFFER_LENGTH];
|
|
|
|
count = snprintf(buffer, PQI_DEV_INFO_BUFFER_LENGTH,
|
|
"%d:%d:", ctrl_info->scsi_host->host_no, device->bus);
|
|
|
|
if (device->target_lun_valid)
|
|
count += snprintf(buffer + count,
|
|
PQI_DEV_INFO_BUFFER_LENGTH - count,
|
|
"%d:%d",
|
|
device->target,
|
|
device->lun);
|
|
else
|
|
count += snprintf(buffer + count,
|
|
PQI_DEV_INFO_BUFFER_LENGTH - count,
|
|
"-:-");
|
|
|
|
if (pqi_is_logical_device(device))
|
|
count += snprintf(buffer + count,
|
|
PQI_DEV_INFO_BUFFER_LENGTH - count,
|
|
" %08x%08x",
|
|
*((u32 *)&device->scsi3addr),
|
|
*((u32 *)&device->scsi3addr[4]));
|
|
else
|
|
count += snprintf(buffer + count,
|
|
PQI_DEV_INFO_BUFFER_LENGTH - count,
|
|
" %016llx", device->sas_address);
|
|
|
|
count += snprintf(buffer + count, PQI_DEV_INFO_BUFFER_LENGTH - count,
|
|
" %s %.8s %.16s ",
|
|
scsi_device_type(device->devtype),
|
|
device->vendor,
|
|
device->model);
|
|
|
|
if (pqi_is_logical_device(device)) {
|
|
if (device->devtype == TYPE_DISK)
|
|
count += snprintf(buffer + count,
|
|
PQI_DEV_INFO_BUFFER_LENGTH - count,
|
|
"SSDSmartPathCap%c En%c %-12s",
|
|
device->raid_bypass_configured ? '+' : '-',
|
|
device->raid_bypass_enabled ? '+' : '-',
|
|
pqi_raid_level_to_string(device->raid_level));
|
|
} else {
|
|
count += snprintf(buffer + count,
|
|
PQI_DEV_INFO_BUFFER_LENGTH - count,
|
|
"AIO%c", device->aio_enabled ? '+' : '-');
|
|
if (device->devtype == TYPE_DISK ||
|
|
device->devtype == TYPE_ZBC)
|
|
count += snprintf(buffer + count,
|
|
PQI_DEV_INFO_BUFFER_LENGTH - count,
|
|
" qd=%-6d", device->queue_depth);
|
|
}
|
|
|
|
dev_info(&ctrl_info->pci_dev->dev, "%s %s\n", action, buffer);
|
|
}
|
|
|
|
/* Assumes the SCSI device list lock is held. */
|
|
|
|
static void pqi_scsi_update_device(struct pqi_scsi_dev *existing_device,
|
|
struct pqi_scsi_dev *new_device)
|
|
{
|
|
existing_device->devtype = new_device->devtype;
|
|
existing_device->device_type = new_device->device_type;
|
|
existing_device->bus = new_device->bus;
|
|
if (new_device->target_lun_valid) {
|
|
existing_device->target = new_device->target;
|
|
existing_device->lun = new_device->lun;
|
|
existing_device->target_lun_valid = true;
|
|
}
|
|
|
|
/* By definition, the scsi3addr and wwid fields are already the same. */
|
|
|
|
existing_device->is_physical_device = new_device->is_physical_device;
|
|
existing_device->is_external_raid_device =
|
|
new_device->is_external_raid_device;
|
|
existing_device->aio_enabled = new_device->aio_enabled;
|
|
memcpy(existing_device->vendor, new_device->vendor,
|
|
sizeof(existing_device->vendor));
|
|
memcpy(existing_device->model, new_device->model,
|
|
sizeof(existing_device->model));
|
|
existing_device->sas_address = new_device->sas_address;
|
|
existing_device->raid_level = new_device->raid_level;
|
|
existing_device->queue_depth = new_device->queue_depth;
|
|
existing_device->aio_handle = new_device->aio_handle;
|
|
existing_device->volume_status = new_device->volume_status;
|
|
existing_device->active_path_index = new_device->active_path_index;
|
|
existing_device->path_map = new_device->path_map;
|
|
existing_device->bay = new_device->bay;
|
|
memcpy(existing_device->box, new_device->box,
|
|
sizeof(existing_device->box));
|
|
memcpy(existing_device->phys_connector, new_device->phys_connector,
|
|
sizeof(existing_device->phys_connector));
|
|
existing_device->offload_to_mirror = 0;
|
|
kfree(existing_device->raid_map);
|
|
existing_device->raid_map = new_device->raid_map;
|
|
existing_device->raid_bypass_configured =
|
|
new_device->raid_bypass_configured;
|
|
existing_device->raid_bypass_enabled =
|
|
new_device->raid_bypass_enabled;
|
|
|
|
/* To prevent this from being freed later. */
|
|
new_device->raid_map = NULL;
|
|
}
|
|
|
|
static inline void pqi_free_device(struct pqi_scsi_dev *device)
|
|
{
|
|
if (device) {
|
|
kfree(device->raid_map);
|
|
kfree(device);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Called when exposing a new device to the OS fails in order to re-adjust
|
|
* our internal SCSI device list to match the SCSI ML's view.
|
|
*/
|
|
|
|
static inline void pqi_fixup_botched_add(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_scsi_dev *device)
|
|
{
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
|
|
list_del(&device->scsi_device_list_entry);
|
|
spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
|
|
|
|
/* Allow the device structure to be freed later. */
|
|
device->keep_device = false;
|
|
}
|
|
|
|
static void pqi_update_device_list(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_scsi_dev *new_device_list[], unsigned int num_new_devices)
|
|
{
|
|
int rc;
|
|
unsigned int i;
|
|
unsigned long flags;
|
|
enum pqi_find_result find_result;
|
|
struct pqi_scsi_dev *device;
|
|
struct pqi_scsi_dev *next;
|
|
struct pqi_scsi_dev *matching_device;
|
|
LIST_HEAD(add_list);
|
|
LIST_HEAD(delete_list);
|
|
|
|
/*
|
|
* The idea here is to do as little work as possible while holding the
|
|
* spinlock. That's why we go to great pains to defer anything other
|
|
* than updating the internal device list until after we release the
|
|
* spinlock.
|
|
*/
|
|
|
|
spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
|
|
|
|
/* Assume that all devices in the existing list have gone away. */
|
|
list_for_each_entry(device, &ctrl_info->scsi_device_list,
|
|
scsi_device_list_entry)
|
|
device->device_gone = true;
|
|
|
|
for (i = 0; i < num_new_devices; i++) {
|
|
device = new_device_list[i];
|
|
|
|
find_result = pqi_scsi_find_entry(ctrl_info, device,
|
|
&matching_device);
|
|
|
|
switch (find_result) {
|
|
case DEVICE_SAME:
|
|
/*
|
|
* The newly found device is already in the existing
|
|
* device list.
|
|
*/
|
|
device->new_device = false;
|
|
matching_device->device_gone = false;
|
|
pqi_scsi_update_device(matching_device, device);
|
|
break;
|
|
case DEVICE_NOT_FOUND:
|
|
/*
|
|
* The newly found device is NOT in the existing device
|
|
* list.
|
|
*/
|
|
device->new_device = true;
|
|
break;
|
|
case DEVICE_CHANGED:
|
|
/*
|
|
* The original device has gone away and we need to add
|
|
* the new device.
|
|
*/
|
|
device->new_device = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Process all devices that have gone away. */
|
|
list_for_each_entry_safe(device, next, &ctrl_info->scsi_device_list,
|
|
scsi_device_list_entry) {
|
|
if (device->device_gone) {
|
|
list_del(&device->scsi_device_list_entry);
|
|
list_add_tail(&device->delete_list_entry, &delete_list);
|
|
}
|
|
}
|
|
|
|
/* Process all new devices. */
|
|
for (i = 0; i < num_new_devices; i++) {
|
|
device = new_device_list[i];
|
|
if (!device->new_device)
|
|
continue;
|
|
if (device->volume_offline)
|
|
continue;
|
|
list_add_tail(&device->scsi_device_list_entry,
|
|
&ctrl_info->scsi_device_list);
|
|
list_add_tail(&device->add_list_entry, &add_list);
|
|
/* To prevent this device structure from being freed later. */
|
|
device->keep_device = true;
|
|
}
|
|
|
|
spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
|
|
|
|
/* Remove all devices that have gone away. */
|
|
list_for_each_entry_safe(device, next, &delete_list,
|
|
delete_list_entry) {
|
|
if (device->volume_offline) {
|
|
pqi_dev_info(ctrl_info, "offline", device);
|
|
pqi_show_volume_status(ctrl_info, device);
|
|
} else {
|
|
pqi_dev_info(ctrl_info, "removed", device);
|
|
}
|
|
if (device->sdev)
|
|
pqi_remove_device(ctrl_info, device);
|
|
list_del(&device->delete_list_entry);
|
|
pqi_free_device(device);
|
|
}
|
|
|
|
/*
|
|
* Notify the SCSI ML if the queue depth of any existing device has
|
|
* changed.
|
|
*/
|
|
list_for_each_entry(device, &ctrl_info->scsi_device_list,
|
|
scsi_device_list_entry) {
|
|
if (device->sdev && device->queue_depth !=
|
|
device->advertised_queue_depth) {
|
|
device->advertised_queue_depth = device->queue_depth;
|
|
scsi_change_queue_depth(device->sdev,
|
|
device->advertised_queue_depth);
|
|
}
|
|
}
|
|
|
|
/* Expose any new devices. */
|
|
list_for_each_entry_safe(device, next, &add_list, add_list_entry) {
|
|
if (!device->sdev) {
|
|
pqi_dev_info(ctrl_info, "added", device);
|
|
rc = pqi_add_device(ctrl_info, device);
|
|
if (rc) {
|
|
dev_warn(&ctrl_info->pci_dev->dev,
|
|
"scsi %d:%d:%d:%d addition failed, device not added\n",
|
|
ctrl_info->scsi_host->host_no,
|
|
device->bus, device->target,
|
|
device->lun);
|
|
pqi_fixup_botched_add(ctrl_info, device);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static bool pqi_is_supported_device(struct pqi_scsi_dev *device)
|
|
{
|
|
bool is_supported = false;
|
|
|
|
switch (device->devtype) {
|
|
case TYPE_DISK:
|
|
case TYPE_ZBC:
|
|
case TYPE_TAPE:
|
|
case TYPE_MEDIUM_CHANGER:
|
|
case TYPE_ENCLOSURE:
|
|
is_supported = true;
|
|
break;
|
|
case TYPE_RAID:
|
|
/*
|
|
* Only support the HBA controller itself as a RAID
|
|
* controller. If it's a RAID controller other than
|
|
* the HBA itself (an external RAID controller, for
|
|
* example), we don't support it.
|
|
*/
|
|
if (pqi_is_hba_lunid(device->scsi3addr))
|
|
is_supported = true;
|
|
break;
|
|
}
|
|
|
|
return is_supported;
|
|
}
|
|
|
|
static inline bool pqi_skip_device(u8 *scsi3addr)
|
|
{
|
|
/* Ignore all masked devices. */
|
|
if (MASKED_DEVICE(scsi3addr))
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
static int pqi_update_scsi_devices(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
int i;
|
|
int rc;
|
|
LIST_HEAD(new_device_list_head);
|
|
struct report_phys_lun_extended *physdev_list = NULL;
|
|
struct report_log_lun_extended *logdev_list = NULL;
|
|
struct report_phys_lun_extended_entry *phys_lun_ext_entry;
|
|
struct report_log_lun_extended_entry *log_lun_ext_entry;
|
|
struct bmic_identify_physical_device *id_phys = NULL;
|
|
u32 num_physicals;
|
|
u32 num_logicals;
|
|
struct pqi_scsi_dev **new_device_list = NULL;
|
|
struct pqi_scsi_dev *device;
|
|
struct pqi_scsi_dev *next;
|
|
unsigned int num_new_devices;
|
|
unsigned int num_valid_devices;
|
|
bool is_physical_device;
|
|
u8 *scsi3addr;
|
|
static char *out_of_memory_msg =
|
|
"failed to allocate memory, device discovery stopped";
|
|
|
|
rc = pqi_get_device_lists(ctrl_info, &physdev_list, &logdev_list);
|
|
if (rc)
|
|
goto out;
|
|
|
|
if (physdev_list)
|
|
num_physicals =
|
|
get_unaligned_be32(&physdev_list->header.list_length)
|
|
/ sizeof(physdev_list->lun_entries[0]);
|
|
else
|
|
num_physicals = 0;
|
|
|
|
if (logdev_list)
|
|
num_logicals =
|
|
get_unaligned_be32(&logdev_list->header.list_length)
|
|
/ sizeof(logdev_list->lun_entries[0]);
|
|
else
|
|
num_logicals = 0;
|
|
|
|
if (num_physicals) {
|
|
/*
|
|
* We need this buffer for calls to pqi_get_physical_disk_info()
|
|
* below. We allocate it here instead of inside
|
|
* pqi_get_physical_disk_info() because it's a fairly large
|
|
* buffer.
|
|
*/
|
|
id_phys = kmalloc(sizeof(*id_phys), GFP_KERNEL);
|
|
if (!id_phys) {
|
|
dev_warn(&ctrl_info->pci_dev->dev, "%s\n",
|
|
out_of_memory_msg);
|
|
rc = -ENOMEM;
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
num_new_devices = num_physicals + num_logicals;
|
|
|
|
new_device_list = kmalloc_array(num_new_devices,
|
|
sizeof(*new_device_list),
|
|
GFP_KERNEL);
|
|
if (!new_device_list) {
|
|
dev_warn(&ctrl_info->pci_dev->dev, "%s\n", out_of_memory_msg);
|
|
rc = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
for (i = 0; i < num_new_devices; i++) {
|
|
device = kzalloc(sizeof(*device), GFP_KERNEL);
|
|
if (!device) {
|
|
dev_warn(&ctrl_info->pci_dev->dev, "%s\n",
|
|
out_of_memory_msg);
|
|
rc = -ENOMEM;
|
|
goto out;
|
|
}
|
|
list_add_tail(&device->new_device_list_entry,
|
|
&new_device_list_head);
|
|
}
|
|
|
|
device = NULL;
|
|
num_valid_devices = 0;
|
|
|
|
for (i = 0; i < num_new_devices; i++) {
|
|
|
|
if (i < num_physicals) {
|
|
is_physical_device = true;
|
|
phys_lun_ext_entry = &physdev_list->lun_entries[i];
|
|
log_lun_ext_entry = NULL;
|
|
scsi3addr = phys_lun_ext_entry->lunid;
|
|
} else {
|
|
is_physical_device = false;
|
|
phys_lun_ext_entry = NULL;
|
|
log_lun_ext_entry =
|
|
&logdev_list->lun_entries[i - num_physicals];
|
|
scsi3addr = log_lun_ext_entry->lunid;
|
|
}
|
|
|
|
if (is_physical_device && pqi_skip_device(scsi3addr))
|
|
continue;
|
|
|
|
if (device)
|
|
device = list_next_entry(device, new_device_list_entry);
|
|
else
|
|
device = list_first_entry(&new_device_list_head,
|
|
struct pqi_scsi_dev, new_device_list_entry);
|
|
|
|
memcpy(device->scsi3addr, scsi3addr, sizeof(device->scsi3addr));
|
|
device->is_physical_device = is_physical_device;
|
|
if (!is_physical_device)
|
|
device->is_external_raid_device =
|
|
pqi_is_external_raid_addr(scsi3addr);
|
|
|
|
/* Gather information about the device. */
|
|
rc = pqi_get_device_info(ctrl_info, device);
|
|
if (rc == -ENOMEM) {
|
|
dev_warn(&ctrl_info->pci_dev->dev, "%s\n",
|
|
out_of_memory_msg);
|
|
goto out;
|
|
}
|
|
if (rc) {
|
|
if (device->is_physical_device)
|
|
dev_warn(&ctrl_info->pci_dev->dev,
|
|
"obtaining device info failed, skipping physical device %016llx\n",
|
|
get_unaligned_be64(
|
|
&phys_lun_ext_entry->wwid));
|
|
else
|
|
dev_warn(&ctrl_info->pci_dev->dev,
|
|
"obtaining device info failed, skipping logical device %08x%08x\n",
|
|
*((u32 *)&device->scsi3addr),
|
|
*((u32 *)&device->scsi3addr[4]));
|
|
rc = 0;
|
|
continue;
|
|
}
|
|
|
|
if (!pqi_is_supported_device(device))
|
|
continue;
|
|
|
|
pqi_assign_bus_target_lun(device);
|
|
|
|
if (device->is_physical_device) {
|
|
device->wwid = phys_lun_ext_entry->wwid;
|
|
if ((phys_lun_ext_entry->device_flags &
|
|
REPORT_PHYS_LUN_DEV_FLAG_AIO_ENABLED) &&
|
|
phys_lun_ext_entry->aio_handle)
|
|
device->aio_enabled = true;
|
|
} else {
|
|
memcpy(device->volume_id, log_lun_ext_entry->volume_id,
|
|
sizeof(device->volume_id));
|
|
}
|
|
|
|
switch (device->devtype) {
|
|
case TYPE_DISK:
|
|
case TYPE_ZBC:
|
|
case TYPE_ENCLOSURE:
|
|
if (device->is_physical_device) {
|
|
device->sas_address =
|
|
get_unaligned_be64(&device->wwid);
|
|
if (device->devtype == TYPE_DISK ||
|
|
device->devtype == TYPE_ZBC) {
|
|
device->aio_handle =
|
|
phys_lun_ext_entry->aio_handle;
|
|
pqi_get_physical_disk_info(ctrl_info,
|
|
device, id_phys);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
new_device_list[num_valid_devices++] = device;
|
|
}
|
|
|
|
pqi_update_device_list(ctrl_info, new_device_list, num_valid_devices);
|
|
|
|
out:
|
|
list_for_each_entry_safe(device, next, &new_device_list_head,
|
|
new_device_list_entry) {
|
|
if (device->keep_device)
|
|
continue;
|
|
list_del(&device->new_device_list_entry);
|
|
pqi_free_device(device);
|
|
}
|
|
|
|
kfree(new_device_list);
|
|
kfree(physdev_list);
|
|
kfree(logdev_list);
|
|
kfree(id_phys);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void pqi_remove_all_scsi_devices(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
unsigned long flags;
|
|
struct pqi_scsi_dev *device;
|
|
|
|
while (1) {
|
|
spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
|
|
|
|
device = list_first_entry_or_null(&ctrl_info->scsi_device_list,
|
|
struct pqi_scsi_dev, scsi_device_list_entry);
|
|
if (device)
|
|
list_del(&device->scsi_device_list_entry);
|
|
|
|
spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock,
|
|
flags);
|
|
|
|
if (!device)
|
|
break;
|
|
|
|
if (device->sdev)
|
|
pqi_remove_device(ctrl_info, device);
|
|
pqi_free_device(device);
|
|
}
|
|
}
|
|
|
|
static int pqi_scan_scsi_devices(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
int rc;
|
|
|
|
if (pqi_ctrl_offline(ctrl_info))
|
|
return -ENXIO;
|
|
|
|
mutex_lock(&ctrl_info->scan_mutex);
|
|
|
|
rc = pqi_update_scsi_devices(ctrl_info);
|
|
if (rc)
|
|
pqi_schedule_rescan_worker_delayed(ctrl_info);
|
|
|
|
mutex_unlock(&ctrl_info->scan_mutex);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void pqi_scan_start(struct Scsi_Host *shost)
|
|
{
|
|
pqi_scan_scsi_devices(shost_to_hba(shost));
|
|
}
|
|
|
|
/* Returns TRUE if scan is finished. */
|
|
|
|
static int pqi_scan_finished(struct Scsi_Host *shost,
|
|
unsigned long elapsed_time)
|
|
{
|
|
struct pqi_ctrl_info *ctrl_info;
|
|
|
|
ctrl_info = shost_priv(shost);
|
|
|
|
return !mutex_is_locked(&ctrl_info->scan_mutex);
|
|
}
|
|
|
|
static void pqi_wait_until_scan_finished(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
mutex_lock(&ctrl_info->scan_mutex);
|
|
mutex_unlock(&ctrl_info->scan_mutex);
|
|
}
|
|
|
|
static void pqi_wait_until_lun_reset_finished(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
mutex_lock(&ctrl_info->lun_reset_mutex);
|
|
mutex_unlock(&ctrl_info->lun_reset_mutex);
|
|
}
|
|
|
|
static inline void pqi_set_encryption_info(
|
|
struct pqi_encryption_info *encryption_info, struct raid_map *raid_map,
|
|
u64 first_block)
|
|
{
|
|
u32 volume_blk_size;
|
|
|
|
/*
|
|
* Set the encryption tweak values based on logical block address.
|
|
* If the block size is 512, the tweak value is equal to the LBA.
|
|
* For other block sizes, tweak value is (LBA * block size) / 512.
|
|
*/
|
|
volume_blk_size = get_unaligned_le32(&raid_map->volume_blk_size);
|
|
if (volume_blk_size != 512)
|
|
first_block = (first_block * volume_blk_size) / 512;
|
|
|
|
encryption_info->data_encryption_key_index =
|
|
get_unaligned_le16(&raid_map->data_encryption_key_index);
|
|
encryption_info->encrypt_tweak_lower = lower_32_bits(first_block);
|
|
encryption_info->encrypt_tweak_upper = upper_32_bits(first_block);
|
|
}
|
|
|
|
/*
|
|
* Attempt to perform RAID bypass mapping for a logical volume I/O.
|
|
*/
|
|
|
|
#define PQI_RAID_BYPASS_INELIGIBLE 1
|
|
|
|
static int pqi_raid_bypass_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_scsi_dev *device, struct scsi_cmnd *scmd,
|
|
struct pqi_queue_group *queue_group)
|
|
{
|
|
struct raid_map *raid_map;
|
|
bool is_write = false;
|
|
u32 map_index;
|
|
u64 first_block;
|
|
u64 last_block;
|
|
u32 block_cnt;
|
|
u32 blocks_per_row;
|
|
u64 first_row;
|
|
u64 last_row;
|
|
u32 first_row_offset;
|
|
u32 last_row_offset;
|
|
u32 first_column;
|
|
u32 last_column;
|
|
u64 r0_first_row;
|
|
u64 r0_last_row;
|
|
u32 r5or6_blocks_per_row;
|
|
u64 r5or6_first_row;
|
|
u64 r5or6_last_row;
|
|
u32 r5or6_first_row_offset;
|
|
u32 r5or6_last_row_offset;
|
|
u32 r5or6_first_column;
|
|
u32 r5or6_last_column;
|
|
u16 data_disks_per_row;
|
|
u32 total_disks_per_row;
|
|
u16 layout_map_count;
|
|
u32 stripesize;
|
|
u16 strip_size;
|
|
u32 first_group;
|
|
u32 last_group;
|
|
u32 current_group;
|
|
u32 map_row;
|
|
u32 aio_handle;
|
|
u64 disk_block;
|
|
u32 disk_block_cnt;
|
|
u8 cdb[16];
|
|
u8 cdb_length;
|
|
int offload_to_mirror;
|
|
struct pqi_encryption_info *encryption_info_ptr;
|
|
struct pqi_encryption_info encryption_info;
|
|
#if BITS_PER_LONG == 32
|
|
u64 tmpdiv;
|
|
#endif
|
|
|
|
/* Check for valid opcode, get LBA and block count. */
|
|
switch (scmd->cmnd[0]) {
|
|
case WRITE_6:
|
|
is_write = true;
|
|
/* fall through */
|
|
case READ_6:
|
|
first_block = (u64)(((scmd->cmnd[1] & 0x1f) << 16) |
|
|
(scmd->cmnd[2] << 8) | scmd->cmnd[3]);
|
|
block_cnt = (u32)scmd->cmnd[4];
|
|
if (block_cnt == 0)
|
|
block_cnt = 256;
|
|
break;
|
|
case WRITE_10:
|
|
is_write = true;
|
|
/* fall through */
|
|
case READ_10:
|
|
first_block = (u64)get_unaligned_be32(&scmd->cmnd[2]);
|
|
block_cnt = (u32)get_unaligned_be16(&scmd->cmnd[7]);
|
|
break;
|
|
case WRITE_12:
|
|
is_write = true;
|
|
/* fall through */
|
|
case READ_12:
|
|
first_block = (u64)get_unaligned_be32(&scmd->cmnd[2]);
|
|
block_cnt = get_unaligned_be32(&scmd->cmnd[6]);
|
|
break;
|
|
case WRITE_16:
|
|
is_write = true;
|
|
/* fall through */
|
|
case READ_16:
|
|
first_block = get_unaligned_be64(&scmd->cmnd[2]);
|
|
block_cnt = get_unaligned_be32(&scmd->cmnd[10]);
|
|
break;
|
|
default:
|
|
/* Process via normal I/O path. */
|
|
return PQI_RAID_BYPASS_INELIGIBLE;
|
|
}
|
|
|
|
/* Check for write to non-RAID-0. */
|
|
if (is_write && device->raid_level != SA_RAID_0)
|
|
return PQI_RAID_BYPASS_INELIGIBLE;
|
|
|
|
if (unlikely(block_cnt == 0))
|
|
return PQI_RAID_BYPASS_INELIGIBLE;
|
|
|
|
last_block = first_block + block_cnt - 1;
|
|
raid_map = device->raid_map;
|
|
|
|
/* Check for invalid block or wraparound. */
|
|
if (last_block >= get_unaligned_le64(&raid_map->volume_blk_cnt) ||
|
|
last_block < first_block)
|
|
return PQI_RAID_BYPASS_INELIGIBLE;
|
|
|
|
data_disks_per_row = get_unaligned_le16(&raid_map->data_disks_per_row);
|
|
strip_size = get_unaligned_le16(&raid_map->strip_size);
|
|
layout_map_count = get_unaligned_le16(&raid_map->layout_map_count);
|
|
|
|
/* Calculate stripe information for the request. */
|
|
blocks_per_row = data_disks_per_row * strip_size;
|
|
#if BITS_PER_LONG == 32
|
|
tmpdiv = first_block;
|
|
do_div(tmpdiv, blocks_per_row);
|
|
first_row = tmpdiv;
|
|
tmpdiv = last_block;
|
|
do_div(tmpdiv, blocks_per_row);
|
|
last_row = tmpdiv;
|
|
first_row_offset = (u32)(first_block - (first_row * blocks_per_row));
|
|
last_row_offset = (u32)(last_block - (last_row * blocks_per_row));
|
|
tmpdiv = first_row_offset;
|
|
do_div(tmpdiv, strip_size);
|
|
first_column = tmpdiv;
|
|
tmpdiv = last_row_offset;
|
|
do_div(tmpdiv, strip_size);
|
|
last_column = tmpdiv;
|
|
#else
|
|
first_row = first_block / blocks_per_row;
|
|
last_row = last_block / blocks_per_row;
|
|
first_row_offset = (u32)(first_block - (first_row * blocks_per_row));
|
|
last_row_offset = (u32)(last_block - (last_row * blocks_per_row));
|
|
first_column = first_row_offset / strip_size;
|
|
last_column = last_row_offset / strip_size;
|
|
#endif
|
|
|
|
/* If this isn't a single row/column then give to the controller. */
|
|
if (first_row != last_row || first_column != last_column)
|
|
return PQI_RAID_BYPASS_INELIGIBLE;
|
|
|
|
/* Proceeding with driver mapping. */
|
|
total_disks_per_row = data_disks_per_row +
|
|
get_unaligned_le16(&raid_map->metadata_disks_per_row);
|
|
map_row = ((u32)(first_row >> raid_map->parity_rotation_shift)) %
|
|
get_unaligned_le16(&raid_map->row_cnt);
|
|
map_index = (map_row * total_disks_per_row) + first_column;
|
|
|
|
/* RAID 1 */
|
|
if (device->raid_level == SA_RAID_1) {
|
|
if (device->offload_to_mirror)
|
|
map_index += data_disks_per_row;
|
|
device->offload_to_mirror = !device->offload_to_mirror;
|
|
} else if (device->raid_level == SA_RAID_ADM) {
|
|
/* RAID ADM */
|
|
/*
|
|
* Handles N-way mirrors (R1-ADM) and R10 with # of drives
|
|
* divisible by 3.
|
|
*/
|
|
offload_to_mirror = device->offload_to_mirror;
|
|
if (offload_to_mirror == 0) {
|
|
/* use physical disk in the first mirrored group. */
|
|
map_index %= data_disks_per_row;
|
|
} else {
|
|
do {
|
|
/*
|
|
* Determine mirror group that map_index
|
|
* indicates.
|
|
*/
|
|
current_group = map_index / data_disks_per_row;
|
|
|
|
if (offload_to_mirror != current_group) {
|
|
if (current_group <
|
|
layout_map_count - 1) {
|
|
/*
|
|
* Select raid index from
|
|
* next group.
|
|
*/
|
|
map_index += data_disks_per_row;
|
|
current_group++;
|
|
} else {
|
|
/*
|
|
* Select raid index from first
|
|
* group.
|
|
*/
|
|
map_index %= data_disks_per_row;
|
|
current_group = 0;
|
|
}
|
|
}
|
|
} while (offload_to_mirror != current_group);
|
|
}
|
|
|
|
/* Set mirror group to use next time. */
|
|
offload_to_mirror =
|
|
(offload_to_mirror >= layout_map_count - 1) ?
|
|
0 : offload_to_mirror + 1;
|
|
WARN_ON(offload_to_mirror >= layout_map_count);
|
|
device->offload_to_mirror = offload_to_mirror;
|
|
/*
|
|
* Avoid direct use of device->offload_to_mirror within this
|
|
* function since multiple threads might simultaneously
|
|
* increment it beyond the range of device->layout_map_count -1.
|
|
*/
|
|
} else if ((device->raid_level == SA_RAID_5 ||
|
|
device->raid_level == SA_RAID_6) && layout_map_count > 1) {
|
|
/* RAID 50/60 */
|
|
/* Verify first and last block are in same RAID group */
|
|
r5or6_blocks_per_row = strip_size * data_disks_per_row;
|
|
stripesize = r5or6_blocks_per_row * layout_map_count;
|
|
#if BITS_PER_LONG == 32
|
|
tmpdiv = first_block;
|
|
first_group = do_div(tmpdiv, stripesize);
|
|
tmpdiv = first_group;
|
|
do_div(tmpdiv, r5or6_blocks_per_row);
|
|
first_group = tmpdiv;
|
|
tmpdiv = last_block;
|
|
last_group = do_div(tmpdiv, stripesize);
|
|
tmpdiv = last_group;
|
|
do_div(tmpdiv, r5or6_blocks_per_row);
|
|
last_group = tmpdiv;
|
|
#else
|
|
first_group = (first_block % stripesize) / r5or6_blocks_per_row;
|
|
last_group = (last_block % stripesize) / r5or6_blocks_per_row;
|
|
#endif
|
|
if (first_group != last_group)
|
|
return PQI_RAID_BYPASS_INELIGIBLE;
|
|
|
|
/* Verify request is in a single row of RAID 5/6 */
|
|
#if BITS_PER_LONG == 32
|
|
tmpdiv = first_block;
|
|
do_div(tmpdiv, stripesize);
|
|
first_row = r5or6_first_row = r0_first_row = tmpdiv;
|
|
tmpdiv = last_block;
|
|
do_div(tmpdiv, stripesize);
|
|
r5or6_last_row = r0_last_row = tmpdiv;
|
|
#else
|
|
first_row = r5or6_first_row = r0_first_row =
|
|
first_block / stripesize;
|
|
r5or6_last_row = r0_last_row = last_block / stripesize;
|
|
#endif
|
|
if (r5or6_first_row != r5or6_last_row)
|
|
return PQI_RAID_BYPASS_INELIGIBLE;
|
|
|
|
/* Verify request is in a single column */
|
|
#if BITS_PER_LONG == 32
|
|
tmpdiv = first_block;
|
|
first_row_offset = do_div(tmpdiv, stripesize);
|
|
tmpdiv = first_row_offset;
|
|
first_row_offset = (u32)do_div(tmpdiv, r5or6_blocks_per_row);
|
|
r5or6_first_row_offset = first_row_offset;
|
|
tmpdiv = last_block;
|
|
r5or6_last_row_offset = do_div(tmpdiv, stripesize);
|
|
tmpdiv = r5or6_last_row_offset;
|
|
r5or6_last_row_offset = do_div(tmpdiv, r5or6_blocks_per_row);
|
|
tmpdiv = r5or6_first_row_offset;
|
|
do_div(tmpdiv, strip_size);
|
|
first_column = r5or6_first_column = tmpdiv;
|
|
tmpdiv = r5or6_last_row_offset;
|
|
do_div(tmpdiv, strip_size);
|
|
r5or6_last_column = tmpdiv;
|
|
#else
|
|
first_row_offset = r5or6_first_row_offset =
|
|
(u32)((first_block % stripesize) %
|
|
r5or6_blocks_per_row);
|
|
|
|
r5or6_last_row_offset =
|
|
(u32)((last_block % stripesize) %
|
|
r5or6_blocks_per_row);
|
|
|
|
first_column = r5or6_first_row_offset / strip_size;
|
|
r5or6_first_column = first_column;
|
|
r5or6_last_column = r5or6_last_row_offset / strip_size;
|
|
#endif
|
|
if (r5or6_first_column != r5or6_last_column)
|
|
return PQI_RAID_BYPASS_INELIGIBLE;
|
|
|
|
/* Request is eligible */
|
|
map_row =
|
|
((u32)(first_row >> raid_map->parity_rotation_shift)) %
|
|
get_unaligned_le16(&raid_map->row_cnt);
|
|
|
|
map_index = (first_group *
|
|
(get_unaligned_le16(&raid_map->row_cnt) *
|
|
total_disks_per_row)) +
|
|
(map_row * total_disks_per_row) + first_column;
|
|
}
|
|
|
|
if (unlikely(map_index >= RAID_MAP_MAX_ENTRIES))
|
|
return PQI_RAID_BYPASS_INELIGIBLE;
|
|
|
|
aio_handle = raid_map->disk_data[map_index].aio_handle;
|
|
disk_block = get_unaligned_le64(&raid_map->disk_starting_blk) +
|
|
first_row * strip_size +
|
|
(first_row_offset - first_column * strip_size);
|
|
disk_block_cnt = block_cnt;
|
|
|
|
/* Handle differing logical/physical block sizes. */
|
|
if (raid_map->phys_blk_shift) {
|
|
disk_block <<= raid_map->phys_blk_shift;
|
|
disk_block_cnt <<= raid_map->phys_blk_shift;
|
|
}
|
|
|
|
if (unlikely(disk_block_cnt > 0xffff))
|
|
return PQI_RAID_BYPASS_INELIGIBLE;
|
|
|
|
/* Build the new CDB for the physical disk I/O. */
|
|
if (disk_block > 0xffffffff) {
|
|
cdb[0] = is_write ? WRITE_16 : READ_16;
|
|
cdb[1] = 0;
|
|
put_unaligned_be64(disk_block, &cdb[2]);
|
|
put_unaligned_be32(disk_block_cnt, &cdb[10]);
|
|
cdb[14] = 0;
|
|
cdb[15] = 0;
|
|
cdb_length = 16;
|
|
} else {
|
|
cdb[0] = is_write ? WRITE_10 : READ_10;
|
|
cdb[1] = 0;
|
|
put_unaligned_be32((u32)disk_block, &cdb[2]);
|
|
cdb[6] = 0;
|
|
put_unaligned_be16((u16)disk_block_cnt, &cdb[7]);
|
|
cdb[9] = 0;
|
|
cdb_length = 10;
|
|
}
|
|
|
|
if (get_unaligned_le16(&raid_map->flags) &
|
|
RAID_MAP_ENCRYPTION_ENABLED) {
|
|
pqi_set_encryption_info(&encryption_info, raid_map,
|
|
first_block);
|
|
encryption_info_ptr = &encryption_info;
|
|
} else {
|
|
encryption_info_ptr = NULL;
|
|
}
|
|
|
|
return pqi_aio_submit_io(ctrl_info, scmd, aio_handle,
|
|
cdb, cdb_length, queue_group, encryption_info_ptr, true);
|
|
}
|
|
|
|
#define PQI_STATUS_IDLE 0x0
|
|
|
|
#define PQI_CREATE_ADMIN_QUEUE_PAIR 1
|
|
#define PQI_DELETE_ADMIN_QUEUE_PAIR 2
|
|
|
|
#define PQI_DEVICE_STATE_POWER_ON_AND_RESET 0x0
|
|
#define PQI_DEVICE_STATE_STATUS_AVAILABLE 0x1
|
|
#define PQI_DEVICE_STATE_ALL_REGISTERS_READY 0x2
|
|
#define PQI_DEVICE_STATE_ADMIN_QUEUE_PAIR_READY 0x3
|
|
#define PQI_DEVICE_STATE_ERROR 0x4
|
|
|
|
#define PQI_MODE_READY_TIMEOUT_SECS 30
|
|
#define PQI_MODE_READY_POLL_INTERVAL_MSECS 1
|
|
|
|
static int pqi_wait_for_pqi_mode_ready(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
struct pqi_device_registers __iomem *pqi_registers;
|
|
unsigned long timeout;
|
|
u64 signature;
|
|
u8 status;
|
|
|
|
pqi_registers = ctrl_info->pqi_registers;
|
|
timeout = (PQI_MODE_READY_TIMEOUT_SECS * HZ) + jiffies;
|
|
|
|
while (1) {
|
|
signature = readq(&pqi_registers->signature);
|
|
if (memcmp(&signature, PQI_DEVICE_SIGNATURE,
|
|
sizeof(signature)) == 0)
|
|
break;
|
|
if (time_after(jiffies, timeout)) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"timed out waiting for PQI signature\n");
|
|
return -ETIMEDOUT;
|
|
}
|
|
msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS);
|
|
}
|
|
|
|
while (1) {
|
|
status = readb(&pqi_registers->function_and_status_code);
|
|
if (status == PQI_STATUS_IDLE)
|
|
break;
|
|
if (time_after(jiffies, timeout)) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"timed out waiting for PQI IDLE\n");
|
|
return -ETIMEDOUT;
|
|
}
|
|
msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS);
|
|
}
|
|
|
|
while (1) {
|
|
if (readl(&pqi_registers->device_status) ==
|
|
PQI_DEVICE_STATE_ALL_REGISTERS_READY)
|
|
break;
|
|
if (time_after(jiffies, timeout)) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"timed out waiting for PQI all registers ready\n");
|
|
return -ETIMEDOUT;
|
|
}
|
|
msleep(PQI_MODE_READY_POLL_INTERVAL_MSECS);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline void pqi_aio_path_disabled(struct pqi_io_request *io_request)
|
|
{
|
|
struct pqi_scsi_dev *device;
|
|
|
|
device = io_request->scmd->device->hostdata;
|
|
device->raid_bypass_enabled = false;
|
|
device->aio_enabled = false;
|
|
}
|
|
|
|
static inline void pqi_take_device_offline(struct scsi_device *sdev, char *path)
|
|
{
|
|
struct pqi_ctrl_info *ctrl_info;
|
|
struct pqi_scsi_dev *device;
|
|
|
|
device = sdev->hostdata;
|
|
if (device->device_offline)
|
|
return;
|
|
|
|
device->device_offline = true;
|
|
scsi_device_set_state(sdev, SDEV_OFFLINE);
|
|
ctrl_info = shost_to_hba(sdev->host);
|
|
pqi_schedule_rescan_worker(ctrl_info);
|
|
dev_err(&ctrl_info->pci_dev->dev, "offlined %s scsi %d:%d:%d:%d\n",
|
|
path, ctrl_info->scsi_host->host_no, device->bus,
|
|
device->target, device->lun);
|
|
}
|
|
|
|
static void pqi_process_raid_io_error(struct pqi_io_request *io_request)
|
|
{
|
|
u8 scsi_status;
|
|
u8 host_byte;
|
|
struct scsi_cmnd *scmd;
|
|
struct pqi_raid_error_info *error_info;
|
|
size_t sense_data_length;
|
|
int residual_count;
|
|
int xfer_count;
|
|
struct scsi_sense_hdr sshdr;
|
|
|
|
scmd = io_request->scmd;
|
|
if (!scmd)
|
|
return;
|
|
|
|
error_info = io_request->error_info;
|
|
scsi_status = error_info->status;
|
|
host_byte = DID_OK;
|
|
|
|
switch (error_info->data_out_result) {
|
|
case PQI_DATA_IN_OUT_GOOD:
|
|
break;
|
|
case PQI_DATA_IN_OUT_UNDERFLOW:
|
|
xfer_count =
|
|
get_unaligned_le32(&error_info->data_out_transferred);
|
|
residual_count = scsi_bufflen(scmd) - xfer_count;
|
|
scsi_set_resid(scmd, residual_count);
|
|
if (xfer_count < scmd->underflow)
|
|
host_byte = DID_SOFT_ERROR;
|
|
break;
|
|
case PQI_DATA_IN_OUT_UNSOLICITED_ABORT:
|
|
case PQI_DATA_IN_OUT_ABORTED:
|
|
host_byte = DID_ABORT;
|
|
break;
|
|
case PQI_DATA_IN_OUT_TIMEOUT:
|
|
host_byte = DID_TIME_OUT;
|
|
break;
|
|
case PQI_DATA_IN_OUT_BUFFER_OVERFLOW:
|
|
case PQI_DATA_IN_OUT_PROTOCOL_ERROR:
|
|
case PQI_DATA_IN_OUT_BUFFER_ERROR:
|
|
case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_DESCRIPTOR_AREA:
|
|
case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_BRIDGE:
|
|
case PQI_DATA_IN_OUT_ERROR:
|
|
case PQI_DATA_IN_OUT_HARDWARE_ERROR:
|
|
case PQI_DATA_IN_OUT_PCIE_FABRIC_ERROR:
|
|
case PQI_DATA_IN_OUT_PCIE_COMPLETION_TIMEOUT:
|
|
case PQI_DATA_IN_OUT_PCIE_COMPLETER_ABORT_RECEIVED:
|
|
case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST_RECEIVED:
|
|
case PQI_DATA_IN_OUT_PCIE_ECRC_CHECK_FAILED:
|
|
case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST:
|
|
case PQI_DATA_IN_OUT_PCIE_ACS_VIOLATION:
|
|
case PQI_DATA_IN_OUT_PCIE_TLP_PREFIX_BLOCKED:
|
|
case PQI_DATA_IN_OUT_PCIE_POISONED_MEMORY_READ:
|
|
default:
|
|
host_byte = DID_ERROR;
|
|
break;
|
|
}
|
|
|
|
sense_data_length = get_unaligned_le16(&error_info->sense_data_length);
|
|
if (sense_data_length == 0)
|
|
sense_data_length =
|
|
get_unaligned_le16(&error_info->response_data_length);
|
|
if (sense_data_length) {
|
|
if (sense_data_length > sizeof(error_info->data))
|
|
sense_data_length = sizeof(error_info->data);
|
|
|
|
if (scsi_status == SAM_STAT_CHECK_CONDITION &&
|
|
scsi_normalize_sense(error_info->data,
|
|
sense_data_length, &sshdr) &&
|
|
sshdr.sense_key == HARDWARE_ERROR &&
|
|
sshdr.asc == 0x3e &&
|
|
sshdr.ascq == 0x1) {
|
|
pqi_take_device_offline(scmd->device, "RAID");
|
|
host_byte = DID_NO_CONNECT;
|
|
}
|
|
|
|
if (sense_data_length > SCSI_SENSE_BUFFERSIZE)
|
|
sense_data_length = SCSI_SENSE_BUFFERSIZE;
|
|
memcpy(scmd->sense_buffer, error_info->data,
|
|
sense_data_length);
|
|
}
|
|
|
|
scmd->result = scsi_status;
|
|
set_host_byte(scmd, host_byte);
|
|
}
|
|
|
|
static void pqi_process_aio_io_error(struct pqi_io_request *io_request)
|
|
{
|
|
u8 scsi_status;
|
|
u8 host_byte;
|
|
struct scsi_cmnd *scmd;
|
|
struct pqi_aio_error_info *error_info;
|
|
size_t sense_data_length;
|
|
int residual_count;
|
|
int xfer_count;
|
|
bool device_offline;
|
|
|
|
scmd = io_request->scmd;
|
|
error_info = io_request->error_info;
|
|
host_byte = DID_OK;
|
|
sense_data_length = 0;
|
|
device_offline = false;
|
|
|
|
switch (error_info->service_response) {
|
|
case PQI_AIO_SERV_RESPONSE_COMPLETE:
|
|
scsi_status = error_info->status;
|
|
break;
|
|
case PQI_AIO_SERV_RESPONSE_FAILURE:
|
|
switch (error_info->status) {
|
|
case PQI_AIO_STATUS_IO_ABORTED:
|
|
scsi_status = SAM_STAT_TASK_ABORTED;
|
|
break;
|
|
case PQI_AIO_STATUS_UNDERRUN:
|
|
scsi_status = SAM_STAT_GOOD;
|
|
residual_count = get_unaligned_le32(
|
|
&error_info->residual_count);
|
|
scsi_set_resid(scmd, residual_count);
|
|
xfer_count = scsi_bufflen(scmd) - residual_count;
|
|
if (xfer_count < scmd->underflow)
|
|
host_byte = DID_SOFT_ERROR;
|
|
break;
|
|
case PQI_AIO_STATUS_OVERRUN:
|
|
scsi_status = SAM_STAT_GOOD;
|
|
break;
|
|
case PQI_AIO_STATUS_AIO_PATH_DISABLED:
|
|
pqi_aio_path_disabled(io_request);
|
|
scsi_status = SAM_STAT_GOOD;
|
|
io_request->status = -EAGAIN;
|
|
break;
|
|
case PQI_AIO_STATUS_NO_PATH_TO_DEVICE:
|
|
case PQI_AIO_STATUS_INVALID_DEVICE:
|
|
if (!io_request->raid_bypass) {
|
|
device_offline = true;
|
|
pqi_take_device_offline(scmd->device, "AIO");
|
|
host_byte = DID_NO_CONNECT;
|
|
}
|
|
scsi_status = SAM_STAT_CHECK_CONDITION;
|
|
break;
|
|
case PQI_AIO_STATUS_IO_ERROR:
|
|
default:
|
|
scsi_status = SAM_STAT_CHECK_CONDITION;
|
|
break;
|
|
}
|
|
break;
|
|
case PQI_AIO_SERV_RESPONSE_TMF_COMPLETE:
|
|
case PQI_AIO_SERV_RESPONSE_TMF_SUCCEEDED:
|
|
scsi_status = SAM_STAT_GOOD;
|
|
break;
|
|
case PQI_AIO_SERV_RESPONSE_TMF_REJECTED:
|
|
case PQI_AIO_SERV_RESPONSE_TMF_INCORRECT_LUN:
|
|
default:
|
|
scsi_status = SAM_STAT_CHECK_CONDITION;
|
|
break;
|
|
}
|
|
|
|
if (error_info->data_present) {
|
|
sense_data_length =
|
|
get_unaligned_le16(&error_info->data_length);
|
|
if (sense_data_length) {
|
|
if (sense_data_length > sizeof(error_info->data))
|
|
sense_data_length = sizeof(error_info->data);
|
|
if (sense_data_length > SCSI_SENSE_BUFFERSIZE)
|
|
sense_data_length = SCSI_SENSE_BUFFERSIZE;
|
|
memcpy(scmd->sense_buffer, error_info->data,
|
|
sense_data_length);
|
|
}
|
|
}
|
|
|
|
if (device_offline && sense_data_length == 0)
|
|
scsi_build_sense_buffer(0, scmd->sense_buffer, HARDWARE_ERROR,
|
|
0x3e, 0x1);
|
|
|
|
scmd->result = scsi_status;
|
|
set_host_byte(scmd, host_byte);
|
|
}
|
|
|
|
static void pqi_process_io_error(unsigned int iu_type,
|
|
struct pqi_io_request *io_request)
|
|
{
|
|
switch (iu_type) {
|
|
case PQI_RESPONSE_IU_RAID_PATH_IO_ERROR:
|
|
pqi_process_raid_io_error(io_request);
|
|
break;
|
|
case PQI_RESPONSE_IU_AIO_PATH_IO_ERROR:
|
|
pqi_process_aio_io_error(io_request);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int pqi_interpret_task_management_response(
|
|
struct pqi_task_management_response *response)
|
|
{
|
|
int rc;
|
|
|
|
switch (response->response_code) {
|
|
case SOP_TMF_COMPLETE:
|
|
case SOP_TMF_FUNCTION_SUCCEEDED:
|
|
rc = 0;
|
|
break;
|
|
default:
|
|
rc = -EIO;
|
|
break;
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
static unsigned int pqi_process_io_intr(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_queue_group *queue_group)
|
|
{
|
|
unsigned int num_responses;
|
|
pqi_index_t oq_pi;
|
|
pqi_index_t oq_ci;
|
|
struct pqi_io_request *io_request;
|
|
struct pqi_io_response *response;
|
|
u16 request_id;
|
|
|
|
num_responses = 0;
|
|
oq_ci = queue_group->oq_ci_copy;
|
|
|
|
while (1) {
|
|
oq_pi = *queue_group->oq_pi;
|
|
if (oq_pi == oq_ci)
|
|
break;
|
|
|
|
num_responses++;
|
|
response = queue_group->oq_element_array +
|
|
(oq_ci * PQI_OPERATIONAL_OQ_ELEMENT_LENGTH);
|
|
|
|
request_id = get_unaligned_le16(&response->request_id);
|
|
WARN_ON(request_id >= ctrl_info->max_io_slots);
|
|
|
|
io_request = &ctrl_info->io_request_pool[request_id];
|
|
WARN_ON(atomic_read(&io_request->refcount) == 0);
|
|
|
|
switch (response->header.iu_type) {
|
|
case PQI_RESPONSE_IU_RAID_PATH_IO_SUCCESS:
|
|
case PQI_RESPONSE_IU_AIO_PATH_IO_SUCCESS:
|
|
case PQI_RESPONSE_IU_GENERAL_MANAGEMENT:
|
|
break;
|
|
case PQI_RESPONSE_IU_TASK_MANAGEMENT:
|
|
io_request->status =
|
|
pqi_interpret_task_management_response(
|
|
(void *)response);
|
|
break;
|
|
case PQI_RESPONSE_IU_AIO_PATH_DISABLED:
|
|
pqi_aio_path_disabled(io_request);
|
|
io_request->status = -EAGAIN;
|
|
break;
|
|
case PQI_RESPONSE_IU_RAID_PATH_IO_ERROR:
|
|
case PQI_RESPONSE_IU_AIO_PATH_IO_ERROR:
|
|
io_request->error_info = ctrl_info->error_buffer +
|
|
(get_unaligned_le16(&response->error_index) *
|
|
PQI_ERROR_BUFFER_ELEMENT_LENGTH);
|
|
pqi_process_io_error(response->header.iu_type,
|
|
io_request);
|
|
break;
|
|
default:
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"unexpected IU type: 0x%x\n",
|
|
response->header.iu_type);
|
|
break;
|
|
}
|
|
|
|
io_request->io_complete_callback(io_request,
|
|
io_request->context);
|
|
|
|
/*
|
|
* Note that the I/O request structure CANNOT BE TOUCHED after
|
|
* returning from the I/O completion callback!
|
|
*/
|
|
|
|
oq_ci = (oq_ci + 1) % ctrl_info->num_elements_per_oq;
|
|
}
|
|
|
|
if (num_responses) {
|
|
queue_group->oq_ci_copy = oq_ci;
|
|
writel(oq_ci, queue_group->oq_ci);
|
|
}
|
|
|
|
return num_responses;
|
|
}
|
|
|
|
static inline unsigned int pqi_num_elements_free(unsigned int pi,
|
|
unsigned int ci, unsigned int elements_in_queue)
|
|
{
|
|
unsigned int num_elements_used;
|
|
|
|
if (pi >= ci)
|
|
num_elements_used = pi - ci;
|
|
else
|
|
num_elements_used = elements_in_queue - ci + pi;
|
|
|
|
return elements_in_queue - num_elements_used - 1;
|
|
}
|
|
|
|
static void pqi_send_event_ack(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_event_acknowledge_request *iu, size_t iu_length)
|
|
{
|
|
pqi_index_t iq_pi;
|
|
pqi_index_t iq_ci;
|
|
unsigned long flags;
|
|
void *next_element;
|
|
struct pqi_queue_group *queue_group;
|
|
|
|
queue_group = &ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP];
|
|
put_unaligned_le16(queue_group->oq_id, &iu->header.response_queue_id);
|
|
|
|
while (1) {
|
|
spin_lock_irqsave(&queue_group->submit_lock[RAID_PATH], flags);
|
|
|
|
iq_pi = queue_group->iq_pi_copy[RAID_PATH];
|
|
iq_ci = *queue_group->iq_ci[RAID_PATH];
|
|
|
|
if (pqi_num_elements_free(iq_pi, iq_ci,
|
|
ctrl_info->num_elements_per_iq))
|
|
break;
|
|
|
|
spin_unlock_irqrestore(
|
|
&queue_group->submit_lock[RAID_PATH], flags);
|
|
|
|
if (pqi_ctrl_offline(ctrl_info))
|
|
return;
|
|
}
|
|
|
|
next_element = queue_group->iq_element_array[RAID_PATH] +
|
|
(iq_pi * PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
|
|
|
|
memcpy(next_element, iu, iu_length);
|
|
|
|
iq_pi = (iq_pi + 1) % ctrl_info->num_elements_per_iq;
|
|
queue_group->iq_pi_copy[RAID_PATH] = iq_pi;
|
|
|
|
/*
|
|
* This write notifies the controller that an IU is available to be
|
|
* processed.
|
|
*/
|
|
writel(iq_pi, queue_group->iq_pi[RAID_PATH]);
|
|
|
|
spin_unlock_irqrestore(&queue_group->submit_lock[RAID_PATH], flags);
|
|
}
|
|
|
|
static void pqi_acknowledge_event(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_event *event)
|
|
{
|
|
struct pqi_event_acknowledge_request request;
|
|
|
|
memset(&request, 0, sizeof(request));
|
|
|
|
request.header.iu_type = PQI_REQUEST_IU_ACKNOWLEDGE_VENDOR_EVENT;
|
|
put_unaligned_le16(sizeof(request) - PQI_REQUEST_HEADER_LENGTH,
|
|
&request.header.iu_length);
|
|
request.event_type = event->event_type;
|
|
request.event_id = event->event_id;
|
|
request.additional_event_id = event->additional_event_id;
|
|
|
|
pqi_send_event_ack(ctrl_info, &request, sizeof(request));
|
|
}
|
|
|
|
static void pqi_event_worker(struct work_struct *work)
|
|
{
|
|
unsigned int i;
|
|
struct pqi_ctrl_info *ctrl_info;
|
|
struct pqi_event *event;
|
|
|
|
ctrl_info = container_of(work, struct pqi_ctrl_info, event_work);
|
|
|
|
pqi_ctrl_busy(ctrl_info);
|
|
pqi_wait_if_ctrl_blocked(ctrl_info, NO_TIMEOUT);
|
|
if (pqi_ctrl_offline(ctrl_info))
|
|
goto out;
|
|
|
|
pqi_schedule_rescan_worker_delayed(ctrl_info);
|
|
|
|
event = ctrl_info->events;
|
|
for (i = 0; i < PQI_NUM_SUPPORTED_EVENTS; i++) {
|
|
if (event->pending) {
|
|
event->pending = false;
|
|
pqi_acknowledge_event(ctrl_info, event);
|
|
}
|
|
event++;
|
|
}
|
|
|
|
out:
|
|
pqi_ctrl_unbusy(ctrl_info);
|
|
}
|
|
|
|
#define PQI_HEARTBEAT_TIMER_INTERVAL (10 * HZ)
|
|
|
|
static void pqi_heartbeat_timer_handler(struct timer_list *t)
|
|
{
|
|
int num_interrupts;
|
|
u32 heartbeat_count;
|
|
struct pqi_ctrl_info *ctrl_info = from_timer(ctrl_info, t,
|
|
heartbeat_timer);
|
|
|
|
pqi_check_ctrl_health(ctrl_info);
|
|
if (pqi_ctrl_offline(ctrl_info))
|
|
return;
|
|
|
|
num_interrupts = atomic_read(&ctrl_info->num_interrupts);
|
|
heartbeat_count = pqi_read_heartbeat_counter(ctrl_info);
|
|
|
|
if (num_interrupts == ctrl_info->previous_num_interrupts) {
|
|
if (heartbeat_count == ctrl_info->previous_heartbeat_count) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"no heartbeat detected - last heartbeat count: %u\n",
|
|
heartbeat_count);
|
|
pqi_take_ctrl_offline(ctrl_info);
|
|
return;
|
|
}
|
|
} else {
|
|
ctrl_info->previous_num_interrupts = num_interrupts;
|
|
}
|
|
|
|
ctrl_info->previous_heartbeat_count = heartbeat_count;
|
|
mod_timer(&ctrl_info->heartbeat_timer,
|
|
jiffies + PQI_HEARTBEAT_TIMER_INTERVAL);
|
|
}
|
|
|
|
static void pqi_start_heartbeat_timer(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
if (!ctrl_info->heartbeat_counter)
|
|
return;
|
|
|
|
ctrl_info->previous_num_interrupts =
|
|
atomic_read(&ctrl_info->num_interrupts);
|
|
ctrl_info->previous_heartbeat_count =
|
|
pqi_read_heartbeat_counter(ctrl_info);
|
|
|
|
ctrl_info->heartbeat_timer.expires =
|
|
jiffies + PQI_HEARTBEAT_TIMER_INTERVAL;
|
|
add_timer(&ctrl_info->heartbeat_timer);
|
|
}
|
|
|
|
static inline void pqi_stop_heartbeat_timer(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
del_timer_sync(&ctrl_info->heartbeat_timer);
|
|
}
|
|
|
|
static inline int pqi_event_type_to_event_index(unsigned int event_type)
|
|
{
|
|
int index;
|
|
|
|
for (index = 0; index < ARRAY_SIZE(pqi_supported_event_types); index++)
|
|
if (event_type == pqi_supported_event_types[index])
|
|
return index;
|
|
|
|
return -1;
|
|
}
|
|
|
|
static inline bool pqi_is_supported_event(unsigned int event_type)
|
|
{
|
|
return pqi_event_type_to_event_index(event_type) != -1;
|
|
}
|
|
|
|
static unsigned int pqi_process_event_intr(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
unsigned int num_events;
|
|
pqi_index_t oq_pi;
|
|
pqi_index_t oq_ci;
|
|
struct pqi_event_queue *event_queue;
|
|
struct pqi_event_response *response;
|
|
struct pqi_event *event;
|
|
int event_index;
|
|
|
|
event_queue = &ctrl_info->event_queue;
|
|
num_events = 0;
|
|
oq_ci = event_queue->oq_ci_copy;
|
|
|
|
while (1) {
|
|
oq_pi = *event_queue->oq_pi;
|
|
if (oq_pi == oq_ci)
|
|
break;
|
|
|
|
num_events++;
|
|
response = event_queue->oq_element_array +
|
|
(oq_ci * PQI_EVENT_OQ_ELEMENT_LENGTH);
|
|
|
|
event_index =
|
|
pqi_event_type_to_event_index(response->event_type);
|
|
|
|
if (event_index >= 0) {
|
|
if (response->request_acknowlege) {
|
|
event = &ctrl_info->events[event_index];
|
|
event->pending = true;
|
|
event->event_type = response->event_type;
|
|
event->event_id = response->event_id;
|
|
event->additional_event_id =
|
|
response->additional_event_id;
|
|
}
|
|
}
|
|
|
|
oq_ci = (oq_ci + 1) % PQI_NUM_EVENT_QUEUE_ELEMENTS;
|
|
}
|
|
|
|
if (num_events) {
|
|
event_queue->oq_ci_copy = oq_ci;
|
|
writel(oq_ci, event_queue->oq_ci);
|
|
schedule_work(&ctrl_info->event_work);
|
|
}
|
|
|
|
return num_events;
|
|
}
|
|
|
|
#define PQI_LEGACY_INTX_MASK 0x1
|
|
|
|
static inline void pqi_configure_legacy_intx(struct pqi_ctrl_info *ctrl_info,
|
|
bool enable_intx)
|
|
{
|
|
u32 intx_mask;
|
|
struct pqi_device_registers __iomem *pqi_registers;
|
|
volatile void __iomem *register_addr;
|
|
|
|
pqi_registers = ctrl_info->pqi_registers;
|
|
|
|
if (enable_intx)
|
|
register_addr = &pqi_registers->legacy_intx_mask_clear;
|
|
else
|
|
register_addr = &pqi_registers->legacy_intx_mask_set;
|
|
|
|
intx_mask = readl(register_addr);
|
|
intx_mask |= PQI_LEGACY_INTX_MASK;
|
|
writel(intx_mask, register_addr);
|
|
}
|
|
|
|
static void pqi_change_irq_mode(struct pqi_ctrl_info *ctrl_info,
|
|
enum pqi_irq_mode new_mode)
|
|
{
|
|
switch (ctrl_info->irq_mode) {
|
|
case IRQ_MODE_MSIX:
|
|
switch (new_mode) {
|
|
case IRQ_MODE_MSIX:
|
|
break;
|
|
case IRQ_MODE_INTX:
|
|
pqi_configure_legacy_intx(ctrl_info, true);
|
|
sis_enable_intx(ctrl_info);
|
|
break;
|
|
case IRQ_MODE_NONE:
|
|
break;
|
|
}
|
|
break;
|
|
case IRQ_MODE_INTX:
|
|
switch (new_mode) {
|
|
case IRQ_MODE_MSIX:
|
|
pqi_configure_legacy_intx(ctrl_info, false);
|
|
sis_enable_msix(ctrl_info);
|
|
break;
|
|
case IRQ_MODE_INTX:
|
|
break;
|
|
case IRQ_MODE_NONE:
|
|
pqi_configure_legacy_intx(ctrl_info, false);
|
|
break;
|
|
}
|
|
break;
|
|
case IRQ_MODE_NONE:
|
|
switch (new_mode) {
|
|
case IRQ_MODE_MSIX:
|
|
sis_enable_msix(ctrl_info);
|
|
break;
|
|
case IRQ_MODE_INTX:
|
|
pqi_configure_legacy_intx(ctrl_info, true);
|
|
sis_enable_intx(ctrl_info);
|
|
break;
|
|
case IRQ_MODE_NONE:
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
|
|
ctrl_info->irq_mode = new_mode;
|
|
}
|
|
|
|
#define PQI_LEGACY_INTX_PENDING 0x1
|
|
|
|
static inline bool pqi_is_valid_irq(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
bool valid_irq;
|
|
u32 intx_status;
|
|
|
|
switch (ctrl_info->irq_mode) {
|
|
case IRQ_MODE_MSIX:
|
|
valid_irq = true;
|
|
break;
|
|
case IRQ_MODE_INTX:
|
|
intx_status =
|
|
readl(&ctrl_info->pqi_registers->legacy_intx_status);
|
|
if (intx_status & PQI_LEGACY_INTX_PENDING)
|
|
valid_irq = true;
|
|
else
|
|
valid_irq = false;
|
|
break;
|
|
case IRQ_MODE_NONE:
|
|
default:
|
|
valid_irq = false;
|
|
break;
|
|
}
|
|
|
|
return valid_irq;
|
|
}
|
|
|
|
static irqreturn_t pqi_irq_handler(int irq, void *data)
|
|
{
|
|
struct pqi_ctrl_info *ctrl_info;
|
|
struct pqi_queue_group *queue_group;
|
|
unsigned int num_responses_handled;
|
|
|
|
queue_group = data;
|
|
ctrl_info = queue_group->ctrl_info;
|
|
|
|
if (!pqi_is_valid_irq(ctrl_info))
|
|
return IRQ_NONE;
|
|
|
|
num_responses_handled = pqi_process_io_intr(ctrl_info, queue_group);
|
|
|
|
if (irq == ctrl_info->event_irq)
|
|
num_responses_handled += pqi_process_event_intr(ctrl_info);
|
|
|
|
if (num_responses_handled)
|
|
atomic_inc(&ctrl_info->num_interrupts);
|
|
|
|
pqi_start_io(ctrl_info, queue_group, RAID_PATH, NULL);
|
|
pqi_start_io(ctrl_info, queue_group, AIO_PATH, NULL);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static int pqi_request_irqs(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
struct pci_dev *pci_dev = ctrl_info->pci_dev;
|
|
int i;
|
|
int rc;
|
|
|
|
ctrl_info->event_irq = pci_irq_vector(pci_dev, 0);
|
|
|
|
for (i = 0; i < ctrl_info->num_msix_vectors_enabled; i++) {
|
|
rc = request_irq(pci_irq_vector(pci_dev, i), pqi_irq_handler, 0,
|
|
DRIVER_NAME_SHORT, &ctrl_info->queue_groups[i]);
|
|
if (rc) {
|
|
dev_err(&pci_dev->dev,
|
|
"irq %u init failed with error %d\n",
|
|
pci_irq_vector(pci_dev, i), rc);
|
|
return rc;
|
|
}
|
|
ctrl_info->num_msix_vectors_initialized++;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void pqi_free_irqs(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ctrl_info->num_msix_vectors_initialized; i++)
|
|
free_irq(pci_irq_vector(ctrl_info->pci_dev, i),
|
|
&ctrl_info->queue_groups[i]);
|
|
|
|
ctrl_info->num_msix_vectors_initialized = 0;
|
|
}
|
|
|
|
static int pqi_enable_msix_interrupts(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
int num_vectors_enabled;
|
|
|
|
num_vectors_enabled = pci_alloc_irq_vectors(ctrl_info->pci_dev,
|
|
PQI_MIN_MSIX_VECTORS, ctrl_info->num_queue_groups,
|
|
PCI_IRQ_MSIX | PCI_IRQ_AFFINITY);
|
|
if (num_vectors_enabled < 0) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"MSI-X init failed with error %d\n",
|
|
num_vectors_enabled);
|
|
return num_vectors_enabled;
|
|
}
|
|
|
|
ctrl_info->num_msix_vectors_enabled = num_vectors_enabled;
|
|
ctrl_info->irq_mode = IRQ_MODE_MSIX;
|
|
return 0;
|
|
}
|
|
|
|
static void pqi_disable_msix_interrupts(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
if (ctrl_info->num_msix_vectors_enabled) {
|
|
pci_free_irq_vectors(ctrl_info->pci_dev);
|
|
ctrl_info->num_msix_vectors_enabled = 0;
|
|
}
|
|
}
|
|
|
|
static int pqi_alloc_operational_queues(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
unsigned int i;
|
|
size_t alloc_length;
|
|
size_t element_array_length_per_iq;
|
|
size_t element_array_length_per_oq;
|
|
void *element_array;
|
|
void *next_queue_index;
|
|
void *aligned_pointer;
|
|
unsigned int num_inbound_queues;
|
|
unsigned int num_outbound_queues;
|
|
unsigned int num_queue_indexes;
|
|
struct pqi_queue_group *queue_group;
|
|
|
|
element_array_length_per_iq =
|
|
PQI_OPERATIONAL_IQ_ELEMENT_LENGTH *
|
|
ctrl_info->num_elements_per_iq;
|
|
element_array_length_per_oq =
|
|
PQI_OPERATIONAL_OQ_ELEMENT_LENGTH *
|
|
ctrl_info->num_elements_per_oq;
|
|
num_inbound_queues = ctrl_info->num_queue_groups * 2;
|
|
num_outbound_queues = ctrl_info->num_queue_groups;
|
|
num_queue_indexes = (ctrl_info->num_queue_groups * 3) + 1;
|
|
|
|
aligned_pointer = NULL;
|
|
|
|
for (i = 0; i < num_inbound_queues; i++) {
|
|
aligned_pointer = PTR_ALIGN(aligned_pointer,
|
|
PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
|
|
aligned_pointer += element_array_length_per_iq;
|
|
}
|
|
|
|
for (i = 0; i < num_outbound_queues; i++) {
|
|
aligned_pointer = PTR_ALIGN(aligned_pointer,
|
|
PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
|
|
aligned_pointer += element_array_length_per_oq;
|
|
}
|
|
|
|
aligned_pointer = PTR_ALIGN(aligned_pointer,
|
|
PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
|
|
aligned_pointer += PQI_NUM_EVENT_QUEUE_ELEMENTS *
|
|
PQI_EVENT_OQ_ELEMENT_LENGTH;
|
|
|
|
for (i = 0; i < num_queue_indexes; i++) {
|
|
aligned_pointer = PTR_ALIGN(aligned_pointer,
|
|
PQI_OPERATIONAL_INDEX_ALIGNMENT);
|
|
aligned_pointer += sizeof(pqi_index_t);
|
|
}
|
|
|
|
alloc_length = (size_t)aligned_pointer +
|
|
PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT;
|
|
|
|
alloc_length += PQI_EXTRA_SGL_MEMORY;
|
|
|
|
ctrl_info->queue_memory_base =
|
|
dma_zalloc_coherent(&ctrl_info->pci_dev->dev,
|
|
alloc_length,
|
|
&ctrl_info->queue_memory_base_dma_handle, GFP_KERNEL);
|
|
|
|
if (!ctrl_info->queue_memory_base)
|
|
return -ENOMEM;
|
|
|
|
ctrl_info->queue_memory_length = alloc_length;
|
|
|
|
element_array = PTR_ALIGN(ctrl_info->queue_memory_base,
|
|
PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
|
|
|
|
for (i = 0; i < ctrl_info->num_queue_groups; i++) {
|
|
queue_group = &ctrl_info->queue_groups[i];
|
|
queue_group->iq_element_array[RAID_PATH] = element_array;
|
|
queue_group->iq_element_array_bus_addr[RAID_PATH] =
|
|
ctrl_info->queue_memory_base_dma_handle +
|
|
(element_array - ctrl_info->queue_memory_base);
|
|
element_array += element_array_length_per_iq;
|
|
element_array = PTR_ALIGN(element_array,
|
|
PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
|
|
queue_group->iq_element_array[AIO_PATH] = element_array;
|
|
queue_group->iq_element_array_bus_addr[AIO_PATH] =
|
|
ctrl_info->queue_memory_base_dma_handle +
|
|
(element_array - ctrl_info->queue_memory_base);
|
|
element_array += element_array_length_per_iq;
|
|
element_array = PTR_ALIGN(element_array,
|
|
PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
|
|
}
|
|
|
|
for (i = 0; i < ctrl_info->num_queue_groups; i++) {
|
|
queue_group = &ctrl_info->queue_groups[i];
|
|
queue_group->oq_element_array = element_array;
|
|
queue_group->oq_element_array_bus_addr =
|
|
ctrl_info->queue_memory_base_dma_handle +
|
|
(element_array - ctrl_info->queue_memory_base);
|
|
element_array += element_array_length_per_oq;
|
|
element_array = PTR_ALIGN(element_array,
|
|
PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
|
|
}
|
|
|
|
ctrl_info->event_queue.oq_element_array = element_array;
|
|
ctrl_info->event_queue.oq_element_array_bus_addr =
|
|
ctrl_info->queue_memory_base_dma_handle +
|
|
(element_array - ctrl_info->queue_memory_base);
|
|
element_array += PQI_NUM_EVENT_QUEUE_ELEMENTS *
|
|
PQI_EVENT_OQ_ELEMENT_LENGTH;
|
|
|
|
next_queue_index = PTR_ALIGN(element_array,
|
|
PQI_OPERATIONAL_INDEX_ALIGNMENT);
|
|
|
|
for (i = 0; i < ctrl_info->num_queue_groups; i++) {
|
|
queue_group = &ctrl_info->queue_groups[i];
|
|
queue_group->iq_ci[RAID_PATH] = next_queue_index;
|
|
queue_group->iq_ci_bus_addr[RAID_PATH] =
|
|
ctrl_info->queue_memory_base_dma_handle +
|
|
(next_queue_index - ctrl_info->queue_memory_base);
|
|
next_queue_index += sizeof(pqi_index_t);
|
|
next_queue_index = PTR_ALIGN(next_queue_index,
|
|
PQI_OPERATIONAL_INDEX_ALIGNMENT);
|
|
queue_group->iq_ci[AIO_PATH] = next_queue_index;
|
|
queue_group->iq_ci_bus_addr[AIO_PATH] =
|
|
ctrl_info->queue_memory_base_dma_handle +
|
|
(next_queue_index - ctrl_info->queue_memory_base);
|
|
next_queue_index += sizeof(pqi_index_t);
|
|
next_queue_index = PTR_ALIGN(next_queue_index,
|
|
PQI_OPERATIONAL_INDEX_ALIGNMENT);
|
|
queue_group->oq_pi = next_queue_index;
|
|
queue_group->oq_pi_bus_addr =
|
|
ctrl_info->queue_memory_base_dma_handle +
|
|
(next_queue_index - ctrl_info->queue_memory_base);
|
|
next_queue_index += sizeof(pqi_index_t);
|
|
next_queue_index = PTR_ALIGN(next_queue_index,
|
|
PQI_OPERATIONAL_INDEX_ALIGNMENT);
|
|
}
|
|
|
|
ctrl_info->event_queue.oq_pi = next_queue_index;
|
|
ctrl_info->event_queue.oq_pi_bus_addr =
|
|
ctrl_info->queue_memory_base_dma_handle +
|
|
(next_queue_index - ctrl_info->queue_memory_base);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void pqi_init_operational_queues(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
unsigned int i;
|
|
u16 next_iq_id = PQI_MIN_OPERATIONAL_QUEUE_ID;
|
|
u16 next_oq_id = PQI_MIN_OPERATIONAL_QUEUE_ID;
|
|
|
|
/*
|
|
* Initialize the backpointers to the controller structure in
|
|
* each operational queue group structure.
|
|
*/
|
|
for (i = 0; i < ctrl_info->num_queue_groups; i++)
|
|
ctrl_info->queue_groups[i].ctrl_info = ctrl_info;
|
|
|
|
/*
|
|
* Assign IDs to all operational queues. Note that the IDs
|
|
* assigned to operational IQs are independent of the IDs
|
|
* assigned to operational OQs.
|
|
*/
|
|
ctrl_info->event_queue.oq_id = next_oq_id++;
|
|
for (i = 0; i < ctrl_info->num_queue_groups; i++) {
|
|
ctrl_info->queue_groups[i].iq_id[RAID_PATH] = next_iq_id++;
|
|
ctrl_info->queue_groups[i].iq_id[AIO_PATH] = next_iq_id++;
|
|
ctrl_info->queue_groups[i].oq_id = next_oq_id++;
|
|
}
|
|
|
|
/*
|
|
* Assign MSI-X table entry indexes to all queues. Note that the
|
|
* interrupt for the event queue is shared with the first queue group.
|
|
*/
|
|
ctrl_info->event_queue.int_msg_num = 0;
|
|
for (i = 0; i < ctrl_info->num_queue_groups; i++)
|
|
ctrl_info->queue_groups[i].int_msg_num = i;
|
|
|
|
for (i = 0; i < ctrl_info->num_queue_groups; i++) {
|
|
spin_lock_init(&ctrl_info->queue_groups[i].submit_lock[0]);
|
|
spin_lock_init(&ctrl_info->queue_groups[i].submit_lock[1]);
|
|
INIT_LIST_HEAD(&ctrl_info->queue_groups[i].request_list[0]);
|
|
INIT_LIST_HEAD(&ctrl_info->queue_groups[i].request_list[1]);
|
|
}
|
|
}
|
|
|
|
static int pqi_alloc_admin_queues(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
size_t alloc_length;
|
|
struct pqi_admin_queues_aligned *admin_queues_aligned;
|
|
struct pqi_admin_queues *admin_queues;
|
|
|
|
alloc_length = sizeof(struct pqi_admin_queues_aligned) +
|
|
PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT;
|
|
|
|
ctrl_info->admin_queue_memory_base =
|
|
dma_zalloc_coherent(&ctrl_info->pci_dev->dev,
|
|
alloc_length,
|
|
&ctrl_info->admin_queue_memory_base_dma_handle,
|
|
GFP_KERNEL);
|
|
|
|
if (!ctrl_info->admin_queue_memory_base)
|
|
return -ENOMEM;
|
|
|
|
ctrl_info->admin_queue_memory_length = alloc_length;
|
|
|
|
admin_queues = &ctrl_info->admin_queues;
|
|
admin_queues_aligned = PTR_ALIGN(ctrl_info->admin_queue_memory_base,
|
|
PQI_QUEUE_ELEMENT_ARRAY_ALIGNMENT);
|
|
admin_queues->iq_element_array =
|
|
&admin_queues_aligned->iq_element_array;
|
|
admin_queues->oq_element_array =
|
|
&admin_queues_aligned->oq_element_array;
|
|
admin_queues->iq_ci = &admin_queues_aligned->iq_ci;
|
|
admin_queues->oq_pi = &admin_queues_aligned->oq_pi;
|
|
|
|
admin_queues->iq_element_array_bus_addr =
|
|
ctrl_info->admin_queue_memory_base_dma_handle +
|
|
(admin_queues->iq_element_array -
|
|
ctrl_info->admin_queue_memory_base);
|
|
admin_queues->oq_element_array_bus_addr =
|
|
ctrl_info->admin_queue_memory_base_dma_handle +
|
|
(admin_queues->oq_element_array -
|
|
ctrl_info->admin_queue_memory_base);
|
|
admin_queues->iq_ci_bus_addr =
|
|
ctrl_info->admin_queue_memory_base_dma_handle +
|
|
((void *)admin_queues->iq_ci -
|
|
ctrl_info->admin_queue_memory_base);
|
|
admin_queues->oq_pi_bus_addr =
|
|
ctrl_info->admin_queue_memory_base_dma_handle +
|
|
((void *)admin_queues->oq_pi -
|
|
ctrl_info->admin_queue_memory_base);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define PQI_ADMIN_QUEUE_CREATE_TIMEOUT_JIFFIES HZ
|
|
#define PQI_ADMIN_QUEUE_CREATE_POLL_INTERVAL_MSECS 1
|
|
|
|
static int pqi_create_admin_queues(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
struct pqi_device_registers __iomem *pqi_registers;
|
|
struct pqi_admin_queues *admin_queues;
|
|
unsigned long timeout;
|
|
u8 status;
|
|
u32 reg;
|
|
|
|
pqi_registers = ctrl_info->pqi_registers;
|
|
admin_queues = &ctrl_info->admin_queues;
|
|
|
|
writeq((u64)admin_queues->iq_element_array_bus_addr,
|
|
&pqi_registers->admin_iq_element_array_addr);
|
|
writeq((u64)admin_queues->oq_element_array_bus_addr,
|
|
&pqi_registers->admin_oq_element_array_addr);
|
|
writeq((u64)admin_queues->iq_ci_bus_addr,
|
|
&pqi_registers->admin_iq_ci_addr);
|
|
writeq((u64)admin_queues->oq_pi_bus_addr,
|
|
&pqi_registers->admin_oq_pi_addr);
|
|
|
|
reg = PQI_ADMIN_IQ_NUM_ELEMENTS |
|
|
(PQI_ADMIN_OQ_NUM_ELEMENTS) << 8 |
|
|
(admin_queues->int_msg_num << 16);
|
|
writel(reg, &pqi_registers->admin_iq_num_elements);
|
|
writel(PQI_CREATE_ADMIN_QUEUE_PAIR,
|
|
&pqi_registers->function_and_status_code);
|
|
|
|
timeout = PQI_ADMIN_QUEUE_CREATE_TIMEOUT_JIFFIES + jiffies;
|
|
while (1) {
|
|
status = readb(&pqi_registers->function_and_status_code);
|
|
if (status == PQI_STATUS_IDLE)
|
|
break;
|
|
if (time_after(jiffies, timeout))
|
|
return -ETIMEDOUT;
|
|
msleep(PQI_ADMIN_QUEUE_CREATE_POLL_INTERVAL_MSECS);
|
|
}
|
|
|
|
/*
|
|
* The offset registers are not initialized to the correct
|
|
* offsets until *after* the create admin queue pair command
|
|
* completes successfully.
|
|
*/
|
|
admin_queues->iq_pi = ctrl_info->iomem_base +
|
|
PQI_DEVICE_REGISTERS_OFFSET +
|
|
readq(&pqi_registers->admin_iq_pi_offset);
|
|
admin_queues->oq_ci = ctrl_info->iomem_base +
|
|
PQI_DEVICE_REGISTERS_OFFSET +
|
|
readq(&pqi_registers->admin_oq_ci_offset);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void pqi_submit_admin_request(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_general_admin_request *request)
|
|
{
|
|
struct pqi_admin_queues *admin_queues;
|
|
void *next_element;
|
|
pqi_index_t iq_pi;
|
|
|
|
admin_queues = &ctrl_info->admin_queues;
|
|
iq_pi = admin_queues->iq_pi_copy;
|
|
|
|
next_element = admin_queues->iq_element_array +
|
|
(iq_pi * PQI_ADMIN_IQ_ELEMENT_LENGTH);
|
|
|
|
memcpy(next_element, request, sizeof(*request));
|
|
|
|
iq_pi = (iq_pi + 1) % PQI_ADMIN_IQ_NUM_ELEMENTS;
|
|
admin_queues->iq_pi_copy = iq_pi;
|
|
|
|
/*
|
|
* This write notifies the controller that an IU is available to be
|
|
* processed.
|
|
*/
|
|
writel(iq_pi, admin_queues->iq_pi);
|
|
}
|
|
|
|
#define PQI_ADMIN_REQUEST_TIMEOUT_SECS 60
|
|
|
|
static int pqi_poll_for_admin_response(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_general_admin_response *response)
|
|
{
|
|
struct pqi_admin_queues *admin_queues;
|
|
pqi_index_t oq_pi;
|
|
pqi_index_t oq_ci;
|
|
unsigned long timeout;
|
|
|
|
admin_queues = &ctrl_info->admin_queues;
|
|
oq_ci = admin_queues->oq_ci_copy;
|
|
|
|
timeout = (PQI_ADMIN_REQUEST_TIMEOUT_SECS * HZ) + jiffies;
|
|
|
|
while (1) {
|
|
oq_pi = *admin_queues->oq_pi;
|
|
if (oq_pi != oq_ci)
|
|
break;
|
|
if (time_after(jiffies, timeout)) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"timed out waiting for admin response\n");
|
|
return -ETIMEDOUT;
|
|
}
|
|
if (!sis_is_firmware_running(ctrl_info))
|
|
return -ENXIO;
|
|
usleep_range(1000, 2000);
|
|
}
|
|
|
|
memcpy(response, admin_queues->oq_element_array +
|
|
(oq_ci * PQI_ADMIN_OQ_ELEMENT_LENGTH), sizeof(*response));
|
|
|
|
oq_ci = (oq_ci + 1) % PQI_ADMIN_OQ_NUM_ELEMENTS;
|
|
admin_queues->oq_ci_copy = oq_ci;
|
|
writel(oq_ci, admin_queues->oq_ci);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void pqi_start_io(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_queue_group *queue_group, enum pqi_io_path path,
|
|
struct pqi_io_request *io_request)
|
|
{
|
|
struct pqi_io_request *next;
|
|
void *next_element;
|
|
pqi_index_t iq_pi;
|
|
pqi_index_t iq_ci;
|
|
size_t iu_length;
|
|
unsigned long flags;
|
|
unsigned int num_elements_needed;
|
|
unsigned int num_elements_to_end_of_queue;
|
|
size_t copy_count;
|
|
struct pqi_iu_header *request;
|
|
|
|
spin_lock_irqsave(&queue_group->submit_lock[path], flags);
|
|
|
|
if (io_request) {
|
|
io_request->queue_group = queue_group;
|
|
list_add_tail(&io_request->request_list_entry,
|
|
&queue_group->request_list[path]);
|
|
}
|
|
|
|
iq_pi = queue_group->iq_pi_copy[path];
|
|
|
|
list_for_each_entry_safe(io_request, next,
|
|
&queue_group->request_list[path], request_list_entry) {
|
|
|
|
request = io_request->iu;
|
|
|
|
iu_length = get_unaligned_le16(&request->iu_length) +
|
|
PQI_REQUEST_HEADER_LENGTH;
|
|
num_elements_needed =
|
|
DIV_ROUND_UP(iu_length,
|
|
PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
|
|
|
|
iq_ci = *queue_group->iq_ci[path];
|
|
|
|
if (num_elements_needed > pqi_num_elements_free(iq_pi, iq_ci,
|
|
ctrl_info->num_elements_per_iq))
|
|
break;
|
|
|
|
put_unaligned_le16(queue_group->oq_id,
|
|
&request->response_queue_id);
|
|
|
|
next_element = queue_group->iq_element_array[path] +
|
|
(iq_pi * PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
|
|
|
|
num_elements_to_end_of_queue =
|
|
ctrl_info->num_elements_per_iq - iq_pi;
|
|
|
|
if (num_elements_needed <= num_elements_to_end_of_queue) {
|
|
memcpy(next_element, request, iu_length);
|
|
} else {
|
|
copy_count = num_elements_to_end_of_queue *
|
|
PQI_OPERATIONAL_IQ_ELEMENT_LENGTH;
|
|
memcpy(next_element, request, copy_count);
|
|
memcpy(queue_group->iq_element_array[path],
|
|
(u8 *)request + copy_count,
|
|
iu_length - copy_count);
|
|
}
|
|
|
|
iq_pi = (iq_pi + num_elements_needed) %
|
|
ctrl_info->num_elements_per_iq;
|
|
|
|
list_del(&io_request->request_list_entry);
|
|
}
|
|
|
|
if (iq_pi != queue_group->iq_pi_copy[path]) {
|
|
queue_group->iq_pi_copy[path] = iq_pi;
|
|
/*
|
|
* This write notifies the controller that one or more IUs are
|
|
* available to be processed.
|
|
*/
|
|
writel(iq_pi, queue_group->iq_pi[path]);
|
|
}
|
|
|
|
spin_unlock_irqrestore(&queue_group->submit_lock[path], flags);
|
|
}
|
|
|
|
#define PQI_WAIT_FOR_COMPLETION_IO_TIMEOUT_SECS 10
|
|
|
|
static int pqi_wait_for_completion_io(struct pqi_ctrl_info *ctrl_info,
|
|
struct completion *wait)
|
|
{
|
|
int rc;
|
|
|
|
while (1) {
|
|
if (wait_for_completion_io_timeout(wait,
|
|
PQI_WAIT_FOR_COMPLETION_IO_TIMEOUT_SECS * HZ)) {
|
|
rc = 0;
|
|
break;
|
|
}
|
|
|
|
pqi_check_ctrl_health(ctrl_info);
|
|
if (pqi_ctrl_offline(ctrl_info)) {
|
|
rc = -ENXIO;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void pqi_raid_synchronous_complete(struct pqi_io_request *io_request,
|
|
void *context)
|
|
{
|
|
struct completion *waiting = context;
|
|
|
|
complete(waiting);
|
|
}
|
|
|
|
static int pqi_submit_raid_request_synchronous_with_io_request(
|
|
struct pqi_ctrl_info *ctrl_info, struct pqi_io_request *io_request,
|
|
unsigned long timeout_msecs)
|
|
{
|
|
int rc = 0;
|
|
DECLARE_COMPLETION_ONSTACK(wait);
|
|
|
|
io_request->io_complete_callback = pqi_raid_synchronous_complete;
|
|
io_request->context = &wait;
|
|
|
|
pqi_start_io(ctrl_info,
|
|
&ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP], RAID_PATH,
|
|
io_request);
|
|
|
|
if (timeout_msecs == NO_TIMEOUT) {
|
|
pqi_wait_for_completion_io(ctrl_info, &wait);
|
|
} else {
|
|
if (!wait_for_completion_io_timeout(&wait,
|
|
msecs_to_jiffies(timeout_msecs))) {
|
|
dev_warn(&ctrl_info->pci_dev->dev,
|
|
"command timed out\n");
|
|
rc = -ETIMEDOUT;
|
|
}
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int pqi_submit_raid_request_synchronous(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_iu_header *request, unsigned int flags,
|
|
struct pqi_raid_error_info *error_info, unsigned long timeout_msecs)
|
|
{
|
|
int rc;
|
|
struct pqi_io_request *io_request;
|
|
unsigned long start_jiffies;
|
|
unsigned long msecs_blocked;
|
|
size_t iu_length;
|
|
|
|
/*
|
|
* Note that specifying PQI_SYNC_FLAGS_INTERRUPTABLE and a timeout value
|
|
* are mutually exclusive.
|
|
*/
|
|
|
|
if (flags & PQI_SYNC_FLAGS_INTERRUPTABLE) {
|
|
if (down_interruptible(&ctrl_info->sync_request_sem))
|
|
return -ERESTARTSYS;
|
|
} else {
|
|
if (timeout_msecs == NO_TIMEOUT) {
|
|
down(&ctrl_info->sync_request_sem);
|
|
} else {
|
|
start_jiffies = jiffies;
|
|
if (down_timeout(&ctrl_info->sync_request_sem,
|
|
msecs_to_jiffies(timeout_msecs)))
|
|
return -ETIMEDOUT;
|
|
msecs_blocked =
|
|
jiffies_to_msecs(jiffies - start_jiffies);
|
|
if (msecs_blocked >= timeout_msecs)
|
|
return -ETIMEDOUT;
|
|
timeout_msecs -= msecs_blocked;
|
|
}
|
|
}
|
|
|
|
pqi_ctrl_busy(ctrl_info);
|
|
timeout_msecs = pqi_wait_if_ctrl_blocked(ctrl_info, timeout_msecs);
|
|
if (timeout_msecs == 0) {
|
|
rc = -ETIMEDOUT;
|
|
goto out;
|
|
}
|
|
|
|
if (pqi_ctrl_offline(ctrl_info)) {
|
|
rc = -ENXIO;
|
|
goto out;
|
|
}
|
|
|
|
io_request = pqi_alloc_io_request(ctrl_info);
|
|
|
|
put_unaligned_le16(io_request->index,
|
|
&(((struct pqi_raid_path_request *)request)->request_id));
|
|
|
|
if (request->iu_type == PQI_REQUEST_IU_RAID_PATH_IO)
|
|
((struct pqi_raid_path_request *)request)->error_index =
|
|
((struct pqi_raid_path_request *)request)->request_id;
|
|
|
|
iu_length = get_unaligned_le16(&request->iu_length) +
|
|
PQI_REQUEST_HEADER_LENGTH;
|
|
memcpy(io_request->iu, request, iu_length);
|
|
|
|
rc = pqi_submit_raid_request_synchronous_with_io_request(ctrl_info,
|
|
io_request, timeout_msecs);
|
|
|
|
if (error_info) {
|
|
if (io_request->error_info)
|
|
memcpy(error_info, io_request->error_info,
|
|
sizeof(*error_info));
|
|
else
|
|
memset(error_info, 0, sizeof(*error_info));
|
|
} else if (rc == 0 && io_request->error_info) {
|
|
u8 scsi_status;
|
|
struct pqi_raid_error_info *raid_error_info;
|
|
|
|
raid_error_info = io_request->error_info;
|
|
scsi_status = raid_error_info->status;
|
|
|
|
if (scsi_status == SAM_STAT_CHECK_CONDITION &&
|
|
raid_error_info->data_out_result ==
|
|
PQI_DATA_IN_OUT_UNDERFLOW)
|
|
scsi_status = SAM_STAT_GOOD;
|
|
|
|
if (scsi_status != SAM_STAT_GOOD)
|
|
rc = -EIO;
|
|
}
|
|
|
|
pqi_free_io_request(io_request);
|
|
|
|
out:
|
|
pqi_ctrl_unbusy(ctrl_info);
|
|
up(&ctrl_info->sync_request_sem);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int pqi_validate_admin_response(
|
|
struct pqi_general_admin_response *response, u8 expected_function_code)
|
|
{
|
|
if (response->header.iu_type != PQI_RESPONSE_IU_GENERAL_ADMIN)
|
|
return -EINVAL;
|
|
|
|
if (get_unaligned_le16(&response->header.iu_length) !=
|
|
PQI_GENERAL_ADMIN_IU_LENGTH)
|
|
return -EINVAL;
|
|
|
|
if (response->function_code != expected_function_code)
|
|
return -EINVAL;
|
|
|
|
if (response->status != PQI_GENERAL_ADMIN_STATUS_SUCCESS)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int pqi_submit_admin_request_synchronous(
|
|
struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_general_admin_request *request,
|
|
struct pqi_general_admin_response *response)
|
|
{
|
|
int rc;
|
|
|
|
pqi_submit_admin_request(ctrl_info, request);
|
|
|
|
rc = pqi_poll_for_admin_response(ctrl_info, response);
|
|
|
|
if (rc == 0)
|
|
rc = pqi_validate_admin_response(response,
|
|
request->function_code);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int pqi_report_device_capability(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
int rc;
|
|
struct pqi_general_admin_request request;
|
|
struct pqi_general_admin_response response;
|
|
struct pqi_device_capability *capability;
|
|
struct pqi_iu_layer_descriptor *sop_iu_layer_descriptor;
|
|
|
|
capability = kmalloc(sizeof(*capability), GFP_KERNEL);
|
|
if (!capability)
|
|
return -ENOMEM;
|
|
|
|
memset(&request, 0, sizeof(request));
|
|
|
|
request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
|
|
put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
|
|
&request.header.iu_length);
|
|
request.function_code =
|
|
PQI_GENERAL_ADMIN_FUNCTION_REPORT_DEVICE_CAPABILITY;
|
|
put_unaligned_le32(sizeof(*capability),
|
|
&request.data.report_device_capability.buffer_length);
|
|
|
|
rc = pqi_map_single(ctrl_info->pci_dev,
|
|
&request.data.report_device_capability.sg_descriptor,
|
|
capability, sizeof(*capability),
|
|
PCI_DMA_FROMDEVICE);
|
|
if (rc)
|
|
goto out;
|
|
|
|
rc = pqi_submit_admin_request_synchronous(ctrl_info, &request,
|
|
&response);
|
|
|
|
pqi_pci_unmap(ctrl_info->pci_dev,
|
|
&request.data.report_device_capability.sg_descriptor, 1,
|
|
PCI_DMA_FROMDEVICE);
|
|
|
|
if (rc)
|
|
goto out;
|
|
|
|
if (response.status != PQI_GENERAL_ADMIN_STATUS_SUCCESS) {
|
|
rc = -EIO;
|
|
goto out;
|
|
}
|
|
|
|
ctrl_info->max_inbound_queues =
|
|
get_unaligned_le16(&capability->max_inbound_queues);
|
|
ctrl_info->max_elements_per_iq =
|
|
get_unaligned_le16(&capability->max_elements_per_iq);
|
|
ctrl_info->max_iq_element_length =
|
|
get_unaligned_le16(&capability->max_iq_element_length)
|
|
* 16;
|
|
ctrl_info->max_outbound_queues =
|
|
get_unaligned_le16(&capability->max_outbound_queues);
|
|
ctrl_info->max_elements_per_oq =
|
|
get_unaligned_le16(&capability->max_elements_per_oq);
|
|
ctrl_info->max_oq_element_length =
|
|
get_unaligned_le16(&capability->max_oq_element_length)
|
|
* 16;
|
|
|
|
sop_iu_layer_descriptor =
|
|
&capability->iu_layer_descriptors[PQI_PROTOCOL_SOP];
|
|
|
|
ctrl_info->max_inbound_iu_length_per_firmware =
|
|
get_unaligned_le16(
|
|
&sop_iu_layer_descriptor->max_inbound_iu_length);
|
|
ctrl_info->inbound_spanning_supported =
|
|
sop_iu_layer_descriptor->inbound_spanning_supported;
|
|
ctrl_info->outbound_spanning_supported =
|
|
sop_iu_layer_descriptor->outbound_spanning_supported;
|
|
|
|
out:
|
|
kfree(capability);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int pqi_validate_device_capability(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
if (ctrl_info->max_iq_element_length <
|
|
PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"max. inbound queue element length of %d is less than the required length of %d\n",
|
|
ctrl_info->max_iq_element_length,
|
|
PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (ctrl_info->max_oq_element_length <
|
|
PQI_OPERATIONAL_OQ_ELEMENT_LENGTH) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"max. outbound queue element length of %d is less than the required length of %d\n",
|
|
ctrl_info->max_oq_element_length,
|
|
PQI_OPERATIONAL_OQ_ELEMENT_LENGTH);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (ctrl_info->max_inbound_iu_length_per_firmware <
|
|
PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"max. inbound IU length of %u is less than the min. required length of %d\n",
|
|
ctrl_info->max_inbound_iu_length_per_firmware,
|
|
PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!ctrl_info->inbound_spanning_supported) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"the controller does not support inbound spanning\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (ctrl_info->outbound_spanning_supported) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"the controller supports outbound spanning but this driver does not\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int pqi_create_event_queue(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
int rc;
|
|
struct pqi_event_queue *event_queue;
|
|
struct pqi_general_admin_request request;
|
|
struct pqi_general_admin_response response;
|
|
|
|
event_queue = &ctrl_info->event_queue;
|
|
|
|
/*
|
|
* Create OQ (Outbound Queue - device to host queue) to dedicate
|
|
* to events.
|
|
*/
|
|
memset(&request, 0, sizeof(request));
|
|
request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
|
|
put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
|
|
&request.header.iu_length);
|
|
request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_OQ;
|
|
put_unaligned_le16(event_queue->oq_id,
|
|
&request.data.create_operational_oq.queue_id);
|
|
put_unaligned_le64((u64)event_queue->oq_element_array_bus_addr,
|
|
&request.data.create_operational_oq.element_array_addr);
|
|
put_unaligned_le64((u64)event_queue->oq_pi_bus_addr,
|
|
&request.data.create_operational_oq.pi_addr);
|
|
put_unaligned_le16(PQI_NUM_EVENT_QUEUE_ELEMENTS,
|
|
&request.data.create_operational_oq.num_elements);
|
|
put_unaligned_le16(PQI_EVENT_OQ_ELEMENT_LENGTH / 16,
|
|
&request.data.create_operational_oq.element_length);
|
|
request.data.create_operational_oq.queue_protocol = PQI_PROTOCOL_SOP;
|
|
put_unaligned_le16(event_queue->int_msg_num,
|
|
&request.data.create_operational_oq.int_msg_num);
|
|
|
|
rc = pqi_submit_admin_request_synchronous(ctrl_info, &request,
|
|
&response);
|
|
if (rc)
|
|
return rc;
|
|
|
|
event_queue->oq_ci = ctrl_info->iomem_base +
|
|
PQI_DEVICE_REGISTERS_OFFSET +
|
|
get_unaligned_le64(
|
|
&response.data.create_operational_oq.oq_ci_offset);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int pqi_create_queue_group(struct pqi_ctrl_info *ctrl_info,
|
|
unsigned int group_number)
|
|
{
|
|
int rc;
|
|
struct pqi_queue_group *queue_group;
|
|
struct pqi_general_admin_request request;
|
|
struct pqi_general_admin_response response;
|
|
|
|
queue_group = &ctrl_info->queue_groups[group_number];
|
|
|
|
/*
|
|
* Create IQ (Inbound Queue - host to device queue) for
|
|
* RAID path.
|
|
*/
|
|
memset(&request, 0, sizeof(request));
|
|
request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
|
|
put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
|
|
&request.header.iu_length);
|
|
request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_IQ;
|
|
put_unaligned_le16(queue_group->iq_id[RAID_PATH],
|
|
&request.data.create_operational_iq.queue_id);
|
|
put_unaligned_le64(
|
|
(u64)queue_group->iq_element_array_bus_addr[RAID_PATH],
|
|
&request.data.create_operational_iq.element_array_addr);
|
|
put_unaligned_le64((u64)queue_group->iq_ci_bus_addr[RAID_PATH],
|
|
&request.data.create_operational_iq.ci_addr);
|
|
put_unaligned_le16(ctrl_info->num_elements_per_iq,
|
|
&request.data.create_operational_iq.num_elements);
|
|
put_unaligned_le16(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH / 16,
|
|
&request.data.create_operational_iq.element_length);
|
|
request.data.create_operational_iq.queue_protocol = PQI_PROTOCOL_SOP;
|
|
|
|
rc = pqi_submit_admin_request_synchronous(ctrl_info, &request,
|
|
&response);
|
|
if (rc) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"error creating inbound RAID queue\n");
|
|
return rc;
|
|
}
|
|
|
|
queue_group->iq_pi[RAID_PATH] = ctrl_info->iomem_base +
|
|
PQI_DEVICE_REGISTERS_OFFSET +
|
|
get_unaligned_le64(
|
|
&response.data.create_operational_iq.iq_pi_offset);
|
|
|
|
/*
|
|
* Create IQ (Inbound Queue - host to device queue) for
|
|
* Advanced I/O (AIO) path.
|
|
*/
|
|
memset(&request, 0, sizeof(request));
|
|
request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
|
|
put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
|
|
&request.header.iu_length);
|
|
request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_IQ;
|
|
put_unaligned_le16(queue_group->iq_id[AIO_PATH],
|
|
&request.data.create_operational_iq.queue_id);
|
|
put_unaligned_le64((u64)queue_group->
|
|
iq_element_array_bus_addr[AIO_PATH],
|
|
&request.data.create_operational_iq.element_array_addr);
|
|
put_unaligned_le64((u64)queue_group->iq_ci_bus_addr[AIO_PATH],
|
|
&request.data.create_operational_iq.ci_addr);
|
|
put_unaligned_le16(ctrl_info->num_elements_per_iq,
|
|
&request.data.create_operational_iq.num_elements);
|
|
put_unaligned_le16(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH / 16,
|
|
&request.data.create_operational_iq.element_length);
|
|
request.data.create_operational_iq.queue_protocol = PQI_PROTOCOL_SOP;
|
|
|
|
rc = pqi_submit_admin_request_synchronous(ctrl_info, &request,
|
|
&response);
|
|
if (rc) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"error creating inbound AIO queue\n");
|
|
return rc;
|
|
}
|
|
|
|
queue_group->iq_pi[AIO_PATH] = ctrl_info->iomem_base +
|
|
PQI_DEVICE_REGISTERS_OFFSET +
|
|
get_unaligned_le64(
|
|
&response.data.create_operational_iq.iq_pi_offset);
|
|
|
|
/*
|
|
* Designate the 2nd IQ as the AIO path. By default, all IQs are
|
|
* assumed to be for RAID path I/O unless we change the queue's
|
|
* property.
|
|
*/
|
|
memset(&request, 0, sizeof(request));
|
|
request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
|
|
put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
|
|
&request.header.iu_length);
|
|
request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CHANGE_IQ_PROPERTY;
|
|
put_unaligned_le16(queue_group->iq_id[AIO_PATH],
|
|
&request.data.change_operational_iq_properties.queue_id);
|
|
put_unaligned_le32(PQI_IQ_PROPERTY_IS_AIO_QUEUE,
|
|
&request.data.change_operational_iq_properties.vendor_specific);
|
|
|
|
rc = pqi_submit_admin_request_synchronous(ctrl_info, &request,
|
|
&response);
|
|
if (rc) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"error changing queue property\n");
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
* Create OQ (Outbound Queue - device to host queue).
|
|
*/
|
|
memset(&request, 0, sizeof(request));
|
|
request.header.iu_type = PQI_REQUEST_IU_GENERAL_ADMIN;
|
|
put_unaligned_le16(PQI_GENERAL_ADMIN_IU_LENGTH,
|
|
&request.header.iu_length);
|
|
request.function_code = PQI_GENERAL_ADMIN_FUNCTION_CREATE_OQ;
|
|
put_unaligned_le16(queue_group->oq_id,
|
|
&request.data.create_operational_oq.queue_id);
|
|
put_unaligned_le64((u64)queue_group->oq_element_array_bus_addr,
|
|
&request.data.create_operational_oq.element_array_addr);
|
|
put_unaligned_le64((u64)queue_group->oq_pi_bus_addr,
|
|
&request.data.create_operational_oq.pi_addr);
|
|
put_unaligned_le16(ctrl_info->num_elements_per_oq,
|
|
&request.data.create_operational_oq.num_elements);
|
|
put_unaligned_le16(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH / 16,
|
|
&request.data.create_operational_oq.element_length);
|
|
request.data.create_operational_oq.queue_protocol = PQI_PROTOCOL_SOP;
|
|
put_unaligned_le16(queue_group->int_msg_num,
|
|
&request.data.create_operational_oq.int_msg_num);
|
|
|
|
rc = pqi_submit_admin_request_synchronous(ctrl_info, &request,
|
|
&response);
|
|
if (rc) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"error creating outbound queue\n");
|
|
return rc;
|
|
}
|
|
|
|
queue_group->oq_ci = ctrl_info->iomem_base +
|
|
PQI_DEVICE_REGISTERS_OFFSET +
|
|
get_unaligned_le64(
|
|
&response.data.create_operational_oq.oq_ci_offset);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int pqi_create_queues(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
int rc;
|
|
unsigned int i;
|
|
|
|
rc = pqi_create_event_queue(ctrl_info);
|
|
if (rc) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"error creating event queue\n");
|
|
return rc;
|
|
}
|
|
|
|
for (i = 0; i < ctrl_info->num_queue_groups; i++) {
|
|
rc = pqi_create_queue_group(ctrl_info, i);
|
|
if (rc) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"error creating queue group number %u/%u\n",
|
|
i, ctrl_info->num_queue_groups);
|
|
return rc;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH \
|
|
(offsetof(struct pqi_event_config, descriptors) + \
|
|
(PQI_MAX_EVENT_DESCRIPTORS * sizeof(struct pqi_event_descriptor)))
|
|
|
|
static int pqi_configure_events(struct pqi_ctrl_info *ctrl_info,
|
|
bool enable_events)
|
|
{
|
|
int rc;
|
|
unsigned int i;
|
|
struct pqi_event_config *event_config;
|
|
struct pqi_event_descriptor *event_descriptor;
|
|
struct pqi_general_management_request request;
|
|
|
|
event_config = kmalloc(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH,
|
|
GFP_KERNEL);
|
|
if (!event_config)
|
|
return -ENOMEM;
|
|
|
|
memset(&request, 0, sizeof(request));
|
|
|
|
request.header.iu_type = PQI_REQUEST_IU_REPORT_VENDOR_EVENT_CONFIG;
|
|
put_unaligned_le16(offsetof(struct pqi_general_management_request,
|
|
data.report_event_configuration.sg_descriptors[1]) -
|
|
PQI_REQUEST_HEADER_LENGTH, &request.header.iu_length);
|
|
put_unaligned_le32(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH,
|
|
&request.data.report_event_configuration.buffer_length);
|
|
|
|
rc = pqi_map_single(ctrl_info->pci_dev,
|
|
request.data.report_event_configuration.sg_descriptors,
|
|
event_config, PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH,
|
|
PCI_DMA_FROMDEVICE);
|
|
if (rc)
|
|
goto out;
|
|
|
|
rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header,
|
|
0, NULL, NO_TIMEOUT);
|
|
|
|
pqi_pci_unmap(ctrl_info->pci_dev,
|
|
request.data.report_event_configuration.sg_descriptors, 1,
|
|
PCI_DMA_FROMDEVICE);
|
|
|
|
if (rc)
|
|
goto out;
|
|
|
|
for (i = 0; i < event_config->num_event_descriptors; i++) {
|
|
event_descriptor = &event_config->descriptors[i];
|
|
if (enable_events &&
|
|
pqi_is_supported_event(event_descriptor->event_type))
|
|
put_unaligned_le16(ctrl_info->event_queue.oq_id,
|
|
&event_descriptor->oq_id);
|
|
else
|
|
put_unaligned_le16(0, &event_descriptor->oq_id);
|
|
}
|
|
|
|
memset(&request, 0, sizeof(request));
|
|
|
|
request.header.iu_type = PQI_REQUEST_IU_SET_VENDOR_EVENT_CONFIG;
|
|
put_unaligned_le16(offsetof(struct pqi_general_management_request,
|
|
data.report_event_configuration.sg_descriptors[1]) -
|
|
PQI_REQUEST_HEADER_LENGTH, &request.header.iu_length);
|
|
put_unaligned_le32(PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH,
|
|
&request.data.report_event_configuration.buffer_length);
|
|
|
|
rc = pqi_map_single(ctrl_info->pci_dev,
|
|
request.data.report_event_configuration.sg_descriptors,
|
|
event_config, PQI_REPORT_EVENT_CONFIG_BUFFER_LENGTH,
|
|
PCI_DMA_TODEVICE);
|
|
if (rc)
|
|
goto out;
|
|
|
|
rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header, 0,
|
|
NULL, NO_TIMEOUT);
|
|
|
|
pqi_pci_unmap(ctrl_info->pci_dev,
|
|
request.data.report_event_configuration.sg_descriptors, 1,
|
|
PCI_DMA_TODEVICE);
|
|
|
|
out:
|
|
kfree(event_config);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static inline int pqi_enable_events(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
return pqi_configure_events(ctrl_info, true);
|
|
}
|
|
|
|
static inline int pqi_disable_events(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
return pqi_configure_events(ctrl_info, false);
|
|
}
|
|
|
|
static void pqi_free_all_io_requests(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
unsigned int i;
|
|
struct device *dev;
|
|
size_t sg_chain_buffer_length;
|
|
struct pqi_io_request *io_request;
|
|
|
|
if (!ctrl_info->io_request_pool)
|
|
return;
|
|
|
|
dev = &ctrl_info->pci_dev->dev;
|
|
sg_chain_buffer_length = ctrl_info->sg_chain_buffer_length;
|
|
io_request = ctrl_info->io_request_pool;
|
|
|
|
for (i = 0; i < ctrl_info->max_io_slots; i++) {
|
|
kfree(io_request->iu);
|
|
if (!io_request->sg_chain_buffer)
|
|
break;
|
|
dma_free_coherent(dev, sg_chain_buffer_length,
|
|
io_request->sg_chain_buffer,
|
|
io_request->sg_chain_buffer_dma_handle);
|
|
io_request++;
|
|
}
|
|
|
|
kfree(ctrl_info->io_request_pool);
|
|
ctrl_info->io_request_pool = NULL;
|
|
}
|
|
|
|
static inline int pqi_alloc_error_buffer(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
ctrl_info->error_buffer = dma_zalloc_coherent(&ctrl_info->pci_dev->dev,
|
|
ctrl_info->error_buffer_length,
|
|
&ctrl_info->error_buffer_dma_handle, GFP_KERNEL);
|
|
|
|
if (!ctrl_info->error_buffer)
|
|
return -ENOMEM;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int pqi_alloc_io_resources(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
unsigned int i;
|
|
void *sg_chain_buffer;
|
|
size_t sg_chain_buffer_length;
|
|
dma_addr_t sg_chain_buffer_dma_handle;
|
|
struct device *dev;
|
|
struct pqi_io_request *io_request;
|
|
|
|
ctrl_info->io_request_pool =
|
|
kcalloc(ctrl_info->max_io_slots,
|
|
sizeof(ctrl_info->io_request_pool[0]), GFP_KERNEL);
|
|
|
|
if (!ctrl_info->io_request_pool) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"failed to allocate I/O request pool\n");
|
|
goto error;
|
|
}
|
|
|
|
dev = &ctrl_info->pci_dev->dev;
|
|
sg_chain_buffer_length = ctrl_info->sg_chain_buffer_length;
|
|
io_request = ctrl_info->io_request_pool;
|
|
|
|
for (i = 0; i < ctrl_info->max_io_slots; i++) {
|
|
io_request->iu =
|
|
kmalloc(ctrl_info->max_inbound_iu_length, GFP_KERNEL);
|
|
|
|
if (!io_request->iu) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"failed to allocate IU buffers\n");
|
|
goto error;
|
|
}
|
|
|
|
sg_chain_buffer = dma_alloc_coherent(dev,
|
|
sg_chain_buffer_length, &sg_chain_buffer_dma_handle,
|
|
GFP_KERNEL);
|
|
|
|
if (!sg_chain_buffer) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"failed to allocate PQI scatter-gather chain buffers\n");
|
|
goto error;
|
|
}
|
|
|
|
io_request->index = i;
|
|
io_request->sg_chain_buffer = sg_chain_buffer;
|
|
io_request->sg_chain_buffer_dma_handle =
|
|
sg_chain_buffer_dma_handle;
|
|
io_request++;
|
|
}
|
|
|
|
return 0;
|
|
|
|
error:
|
|
pqi_free_all_io_requests(ctrl_info);
|
|
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/*
|
|
* Calculate required resources that are sized based on max. outstanding
|
|
* requests and max. transfer size.
|
|
*/
|
|
|
|
static void pqi_calculate_io_resources(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
u32 max_transfer_size;
|
|
u32 max_sg_entries;
|
|
|
|
ctrl_info->scsi_ml_can_queue =
|
|
ctrl_info->max_outstanding_requests - PQI_RESERVED_IO_SLOTS;
|
|
ctrl_info->max_io_slots = ctrl_info->max_outstanding_requests;
|
|
|
|
ctrl_info->error_buffer_length =
|
|
ctrl_info->max_io_slots * PQI_ERROR_BUFFER_ELEMENT_LENGTH;
|
|
|
|
if (reset_devices)
|
|
max_transfer_size = min(ctrl_info->max_transfer_size,
|
|
PQI_MAX_TRANSFER_SIZE_KDUMP);
|
|
else
|
|
max_transfer_size = min(ctrl_info->max_transfer_size,
|
|
PQI_MAX_TRANSFER_SIZE);
|
|
|
|
max_sg_entries = max_transfer_size / PAGE_SIZE;
|
|
|
|
/* +1 to cover when the buffer is not page-aligned. */
|
|
max_sg_entries++;
|
|
|
|
max_sg_entries = min(ctrl_info->max_sg_entries, max_sg_entries);
|
|
|
|
max_transfer_size = (max_sg_entries - 1) * PAGE_SIZE;
|
|
|
|
ctrl_info->sg_chain_buffer_length =
|
|
(max_sg_entries * sizeof(struct pqi_sg_descriptor)) +
|
|
PQI_EXTRA_SGL_MEMORY;
|
|
ctrl_info->sg_tablesize = max_sg_entries;
|
|
ctrl_info->max_sectors = max_transfer_size / 512;
|
|
}
|
|
|
|
static void pqi_calculate_queue_resources(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
int num_queue_groups;
|
|
u16 num_elements_per_iq;
|
|
u16 num_elements_per_oq;
|
|
|
|
if (reset_devices) {
|
|
num_queue_groups = 1;
|
|
} else {
|
|
int num_cpus;
|
|
int max_queue_groups;
|
|
|
|
max_queue_groups = min(ctrl_info->max_inbound_queues / 2,
|
|
ctrl_info->max_outbound_queues - 1);
|
|
max_queue_groups = min(max_queue_groups, PQI_MAX_QUEUE_GROUPS);
|
|
|
|
num_cpus = num_online_cpus();
|
|
num_queue_groups = min(num_cpus, ctrl_info->max_msix_vectors);
|
|
num_queue_groups = min(num_queue_groups, max_queue_groups);
|
|
}
|
|
|
|
ctrl_info->num_queue_groups = num_queue_groups;
|
|
ctrl_info->max_hw_queue_index = num_queue_groups - 1;
|
|
|
|
/*
|
|
* Make sure that the max. inbound IU length is an even multiple
|
|
* of our inbound element length.
|
|
*/
|
|
ctrl_info->max_inbound_iu_length =
|
|
(ctrl_info->max_inbound_iu_length_per_firmware /
|
|
PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) *
|
|
PQI_OPERATIONAL_IQ_ELEMENT_LENGTH;
|
|
|
|
num_elements_per_iq =
|
|
(ctrl_info->max_inbound_iu_length /
|
|
PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
|
|
|
|
/* Add one because one element in each queue is unusable. */
|
|
num_elements_per_iq++;
|
|
|
|
num_elements_per_iq = min(num_elements_per_iq,
|
|
ctrl_info->max_elements_per_iq);
|
|
|
|
num_elements_per_oq = ((num_elements_per_iq - 1) * 2) + 1;
|
|
num_elements_per_oq = min(num_elements_per_oq,
|
|
ctrl_info->max_elements_per_oq);
|
|
|
|
ctrl_info->num_elements_per_iq = num_elements_per_iq;
|
|
ctrl_info->num_elements_per_oq = num_elements_per_oq;
|
|
|
|
ctrl_info->max_sg_per_iu =
|
|
((ctrl_info->max_inbound_iu_length -
|
|
PQI_OPERATIONAL_IQ_ELEMENT_LENGTH) /
|
|
sizeof(struct pqi_sg_descriptor)) +
|
|
PQI_MAX_EMBEDDED_SG_DESCRIPTORS;
|
|
}
|
|
|
|
static inline void pqi_set_sg_descriptor(
|
|
struct pqi_sg_descriptor *sg_descriptor, struct scatterlist *sg)
|
|
{
|
|
u64 address = (u64)sg_dma_address(sg);
|
|
unsigned int length = sg_dma_len(sg);
|
|
|
|
put_unaligned_le64(address, &sg_descriptor->address);
|
|
put_unaligned_le32(length, &sg_descriptor->length);
|
|
put_unaligned_le32(0, &sg_descriptor->flags);
|
|
}
|
|
|
|
static int pqi_build_raid_sg_list(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_raid_path_request *request, struct scsi_cmnd *scmd,
|
|
struct pqi_io_request *io_request)
|
|
{
|
|
int i;
|
|
u16 iu_length;
|
|
int sg_count;
|
|
bool chained;
|
|
unsigned int num_sg_in_iu;
|
|
unsigned int max_sg_per_iu;
|
|
struct scatterlist *sg;
|
|
struct pqi_sg_descriptor *sg_descriptor;
|
|
|
|
sg_count = scsi_dma_map(scmd);
|
|
if (sg_count < 0)
|
|
return sg_count;
|
|
|
|
iu_length = offsetof(struct pqi_raid_path_request, sg_descriptors) -
|
|
PQI_REQUEST_HEADER_LENGTH;
|
|
|
|
if (sg_count == 0)
|
|
goto out;
|
|
|
|
sg = scsi_sglist(scmd);
|
|
sg_descriptor = request->sg_descriptors;
|
|
max_sg_per_iu = ctrl_info->max_sg_per_iu - 1;
|
|
chained = false;
|
|
num_sg_in_iu = 0;
|
|
i = 0;
|
|
|
|
while (1) {
|
|
pqi_set_sg_descriptor(sg_descriptor, sg);
|
|
if (!chained)
|
|
num_sg_in_iu++;
|
|
i++;
|
|
if (i == sg_count)
|
|
break;
|
|
sg_descriptor++;
|
|
if (i == max_sg_per_iu) {
|
|
put_unaligned_le64(
|
|
(u64)io_request->sg_chain_buffer_dma_handle,
|
|
&sg_descriptor->address);
|
|
put_unaligned_le32((sg_count - num_sg_in_iu)
|
|
* sizeof(*sg_descriptor),
|
|
&sg_descriptor->length);
|
|
put_unaligned_le32(CISS_SG_CHAIN,
|
|
&sg_descriptor->flags);
|
|
chained = true;
|
|
num_sg_in_iu++;
|
|
sg_descriptor = io_request->sg_chain_buffer;
|
|
}
|
|
sg = sg_next(sg);
|
|
}
|
|
|
|
put_unaligned_le32(CISS_SG_LAST, &sg_descriptor->flags);
|
|
request->partial = chained;
|
|
iu_length += num_sg_in_iu * sizeof(*sg_descriptor);
|
|
|
|
out:
|
|
put_unaligned_le16(iu_length, &request->header.iu_length);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int pqi_build_aio_sg_list(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_aio_path_request *request, struct scsi_cmnd *scmd,
|
|
struct pqi_io_request *io_request)
|
|
{
|
|
int i;
|
|
u16 iu_length;
|
|
int sg_count;
|
|
bool chained;
|
|
unsigned int num_sg_in_iu;
|
|
unsigned int max_sg_per_iu;
|
|
struct scatterlist *sg;
|
|
struct pqi_sg_descriptor *sg_descriptor;
|
|
|
|
sg_count = scsi_dma_map(scmd);
|
|
if (sg_count < 0)
|
|
return sg_count;
|
|
|
|
iu_length = offsetof(struct pqi_aio_path_request, sg_descriptors) -
|
|
PQI_REQUEST_HEADER_LENGTH;
|
|
num_sg_in_iu = 0;
|
|
|
|
if (sg_count == 0)
|
|
goto out;
|
|
|
|
sg = scsi_sglist(scmd);
|
|
sg_descriptor = request->sg_descriptors;
|
|
max_sg_per_iu = ctrl_info->max_sg_per_iu - 1;
|
|
chained = false;
|
|
i = 0;
|
|
|
|
while (1) {
|
|
pqi_set_sg_descriptor(sg_descriptor, sg);
|
|
if (!chained)
|
|
num_sg_in_iu++;
|
|
i++;
|
|
if (i == sg_count)
|
|
break;
|
|
sg_descriptor++;
|
|
if (i == max_sg_per_iu) {
|
|
put_unaligned_le64(
|
|
(u64)io_request->sg_chain_buffer_dma_handle,
|
|
&sg_descriptor->address);
|
|
put_unaligned_le32((sg_count - num_sg_in_iu)
|
|
* sizeof(*sg_descriptor),
|
|
&sg_descriptor->length);
|
|
put_unaligned_le32(CISS_SG_CHAIN,
|
|
&sg_descriptor->flags);
|
|
chained = true;
|
|
num_sg_in_iu++;
|
|
sg_descriptor = io_request->sg_chain_buffer;
|
|
}
|
|
sg = sg_next(sg);
|
|
}
|
|
|
|
put_unaligned_le32(CISS_SG_LAST, &sg_descriptor->flags);
|
|
request->partial = chained;
|
|
iu_length += num_sg_in_iu * sizeof(*sg_descriptor);
|
|
|
|
out:
|
|
put_unaligned_le16(iu_length, &request->header.iu_length);
|
|
request->num_sg_descriptors = num_sg_in_iu;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void pqi_raid_io_complete(struct pqi_io_request *io_request,
|
|
void *context)
|
|
{
|
|
struct scsi_cmnd *scmd;
|
|
|
|
scmd = io_request->scmd;
|
|
pqi_free_io_request(io_request);
|
|
scsi_dma_unmap(scmd);
|
|
pqi_scsi_done(scmd);
|
|
}
|
|
|
|
static int pqi_raid_submit_scsi_cmd_with_io_request(
|
|
struct pqi_ctrl_info *ctrl_info, struct pqi_io_request *io_request,
|
|
struct pqi_scsi_dev *device, struct scsi_cmnd *scmd,
|
|
struct pqi_queue_group *queue_group)
|
|
{
|
|
int rc;
|
|
size_t cdb_length;
|
|
struct pqi_raid_path_request *request;
|
|
|
|
io_request->io_complete_callback = pqi_raid_io_complete;
|
|
io_request->scmd = scmd;
|
|
|
|
request = io_request->iu;
|
|
memset(request, 0,
|
|
offsetof(struct pqi_raid_path_request, sg_descriptors));
|
|
|
|
request->header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO;
|
|
put_unaligned_le32(scsi_bufflen(scmd), &request->buffer_length);
|
|
request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
|
|
put_unaligned_le16(io_request->index, &request->request_id);
|
|
request->error_index = request->request_id;
|
|
memcpy(request->lun_number, device->scsi3addr,
|
|
sizeof(request->lun_number));
|
|
|
|
cdb_length = min_t(size_t, scmd->cmd_len, sizeof(request->cdb));
|
|
memcpy(request->cdb, scmd->cmnd, cdb_length);
|
|
|
|
switch (cdb_length) {
|
|
case 6:
|
|
case 10:
|
|
case 12:
|
|
case 16:
|
|
/* No bytes in the Additional CDB bytes field */
|
|
request->additional_cdb_bytes_usage =
|
|
SOP_ADDITIONAL_CDB_BYTES_0;
|
|
break;
|
|
case 20:
|
|
/* 4 bytes in the Additional cdb field */
|
|
request->additional_cdb_bytes_usage =
|
|
SOP_ADDITIONAL_CDB_BYTES_4;
|
|
break;
|
|
case 24:
|
|
/* 8 bytes in the Additional cdb field */
|
|
request->additional_cdb_bytes_usage =
|
|
SOP_ADDITIONAL_CDB_BYTES_8;
|
|
break;
|
|
case 28:
|
|
/* 12 bytes in the Additional cdb field */
|
|
request->additional_cdb_bytes_usage =
|
|
SOP_ADDITIONAL_CDB_BYTES_12;
|
|
break;
|
|
case 32:
|
|
default:
|
|
/* 16 bytes in the Additional cdb field */
|
|
request->additional_cdb_bytes_usage =
|
|
SOP_ADDITIONAL_CDB_BYTES_16;
|
|
break;
|
|
}
|
|
|
|
switch (scmd->sc_data_direction) {
|
|
case DMA_TO_DEVICE:
|
|
request->data_direction = SOP_READ_FLAG;
|
|
break;
|
|
case DMA_FROM_DEVICE:
|
|
request->data_direction = SOP_WRITE_FLAG;
|
|
break;
|
|
case DMA_NONE:
|
|
request->data_direction = SOP_NO_DIRECTION_FLAG;
|
|
break;
|
|
case DMA_BIDIRECTIONAL:
|
|
request->data_direction = SOP_BIDIRECTIONAL;
|
|
break;
|
|
default:
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"unknown data direction: %d\n",
|
|
scmd->sc_data_direction);
|
|
break;
|
|
}
|
|
|
|
rc = pqi_build_raid_sg_list(ctrl_info, request, scmd, io_request);
|
|
if (rc) {
|
|
pqi_free_io_request(io_request);
|
|
return SCSI_MLQUEUE_HOST_BUSY;
|
|
}
|
|
|
|
pqi_start_io(ctrl_info, queue_group, RAID_PATH, io_request);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline int pqi_raid_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_scsi_dev *device, struct scsi_cmnd *scmd,
|
|
struct pqi_queue_group *queue_group)
|
|
{
|
|
struct pqi_io_request *io_request;
|
|
|
|
io_request = pqi_alloc_io_request(ctrl_info);
|
|
|
|
return pqi_raid_submit_scsi_cmd_with_io_request(ctrl_info, io_request,
|
|
device, scmd, queue_group);
|
|
}
|
|
|
|
static inline void pqi_schedule_bypass_retry(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
if (!pqi_ctrl_blocked(ctrl_info))
|
|
schedule_work(&ctrl_info->raid_bypass_retry_work);
|
|
}
|
|
|
|
static bool pqi_raid_bypass_retry_needed(struct pqi_io_request *io_request)
|
|
{
|
|
struct scsi_cmnd *scmd;
|
|
struct pqi_scsi_dev *device;
|
|
struct pqi_ctrl_info *ctrl_info;
|
|
|
|
if (!io_request->raid_bypass)
|
|
return false;
|
|
|
|
scmd = io_request->scmd;
|
|
if ((scmd->result & 0xff) == SAM_STAT_GOOD)
|
|
return false;
|
|
if (host_byte(scmd->result) == DID_NO_CONNECT)
|
|
return false;
|
|
|
|
device = scmd->device->hostdata;
|
|
if (pqi_device_offline(device))
|
|
return false;
|
|
|
|
ctrl_info = shost_to_hba(scmd->device->host);
|
|
if (pqi_ctrl_offline(ctrl_info))
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
static inline void pqi_add_to_raid_bypass_retry_list(
|
|
struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_io_request *io_request, bool at_head)
|
|
{
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&ctrl_info->raid_bypass_retry_list_lock, flags);
|
|
if (at_head)
|
|
list_add(&io_request->request_list_entry,
|
|
&ctrl_info->raid_bypass_retry_list);
|
|
else
|
|
list_add_tail(&io_request->request_list_entry,
|
|
&ctrl_info->raid_bypass_retry_list);
|
|
spin_unlock_irqrestore(&ctrl_info->raid_bypass_retry_list_lock, flags);
|
|
}
|
|
|
|
static void pqi_queued_raid_bypass_complete(struct pqi_io_request *io_request,
|
|
void *context)
|
|
{
|
|
struct scsi_cmnd *scmd;
|
|
|
|
scmd = io_request->scmd;
|
|
pqi_free_io_request(io_request);
|
|
pqi_scsi_done(scmd);
|
|
}
|
|
|
|
static void pqi_queue_raid_bypass_retry(struct pqi_io_request *io_request)
|
|
{
|
|
struct scsi_cmnd *scmd;
|
|
struct pqi_ctrl_info *ctrl_info;
|
|
|
|
io_request->io_complete_callback = pqi_queued_raid_bypass_complete;
|
|
scmd = io_request->scmd;
|
|
scmd->result = 0;
|
|
ctrl_info = shost_to_hba(scmd->device->host);
|
|
|
|
pqi_add_to_raid_bypass_retry_list(ctrl_info, io_request, false);
|
|
pqi_schedule_bypass_retry(ctrl_info);
|
|
}
|
|
|
|
static int pqi_retry_raid_bypass(struct pqi_io_request *io_request)
|
|
{
|
|
struct scsi_cmnd *scmd;
|
|
struct pqi_scsi_dev *device;
|
|
struct pqi_ctrl_info *ctrl_info;
|
|
struct pqi_queue_group *queue_group;
|
|
|
|
scmd = io_request->scmd;
|
|
device = scmd->device->hostdata;
|
|
if (pqi_device_in_reset(device)) {
|
|
pqi_free_io_request(io_request);
|
|
set_host_byte(scmd, DID_RESET);
|
|
pqi_scsi_done(scmd);
|
|
return 0;
|
|
}
|
|
|
|
ctrl_info = shost_to_hba(scmd->device->host);
|
|
queue_group = io_request->queue_group;
|
|
|
|
pqi_reinit_io_request(io_request);
|
|
|
|
return pqi_raid_submit_scsi_cmd_with_io_request(ctrl_info, io_request,
|
|
device, scmd, queue_group);
|
|
}
|
|
|
|
static inline struct pqi_io_request *pqi_next_queued_raid_bypass_request(
|
|
struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
unsigned long flags;
|
|
struct pqi_io_request *io_request;
|
|
|
|
spin_lock_irqsave(&ctrl_info->raid_bypass_retry_list_lock, flags);
|
|
io_request = list_first_entry_or_null(
|
|
&ctrl_info->raid_bypass_retry_list,
|
|
struct pqi_io_request, request_list_entry);
|
|
if (io_request)
|
|
list_del(&io_request->request_list_entry);
|
|
spin_unlock_irqrestore(&ctrl_info->raid_bypass_retry_list_lock, flags);
|
|
|
|
return io_request;
|
|
}
|
|
|
|
static void pqi_retry_raid_bypass_requests(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
int rc;
|
|
struct pqi_io_request *io_request;
|
|
|
|
pqi_ctrl_busy(ctrl_info);
|
|
|
|
while (1) {
|
|
if (pqi_ctrl_blocked(ctrl_info))
|
|
break;
|
|
io_request = pqi_next_queued_raid_bypass_request(ctrl_info);
|
|
if (!io_request)
|
|
break;
|
|
rc = pqi_retry_raid_bypass(io_request);
|
|
if (rc) {
|
|
pqi_add_to_raid_bypass_retry_list(ctrl_info, io_request,
|
|
true);
|
|
pqi_schedule_bypass_retry(ctrl_info);
|
|
break;
|
|
}
|
|
}
|
|
|
|
pqi_ctrl_unbusy(ctrl_info);
|
|
}
|
|
|
|
static void pqi_raid_bypass_retry_worker(struct work_struct *work)
|
|
{
|
|
struct pqi_ctrl_info *ctrl_info;
|
|
|
|
ctrl_info = container_of(work, struct pqi_ctrl_info,
|
|
raid_bypass_retry_work);
|
|
pqi_retry_raid_bypass_requests(ctrl_info);
|
|
}
|
|
|
|
static void pqi_clear_all_queued_raid_bypass_retries(
|
|
struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&ctrl_info->raid_bypass_retry_list_lock, flags);
|
|
INIT_LIST_HEAD(&ctrl_info->raid_bypass_retry_list);
|
|
spin_unlock_irqrestore(&ctrl_info->raid_bypass_retry_list_lock, flags);
|
|
}
|
|
|
|
static void pqi_aio_io_complete(struct pqi_io_request *io_request,
|
|
void *context)
|
|
{
|
|
struct scsi_cmnd *scmd;
|
|
|
|
scmd = io_request->scmd;
|
|
scsi_dma_unmap(scmd);
|
|
if (io_request->status == -EAGAIN)
|
|
set_host_byte(scmd, DID_IMM_RETRY);
|
|
else if (pqi_raid_bypass_retry_needed(io_request)) {
|
|
pqi_queue_raid_bypass_retry(io_request);
|
|
return;
|
|
}
|
|
pqi_free_io_request(io_request);
|
|
pqi_scsi_done(scmd);
|
|
}
|
|
|
|
static inline int pqi_aio_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_scsi_dev *device, struct scsi_cmnd *scmd,
|
|
struct pqi_queue_group *queue_group)
|
|
{
|
|
return pqi_aio_submit_io(ctrl_info, scmd, device->aio_handle,
|
|
scmd->cmnd, scmd->cmd_len, queue_group, NULL, false);
|
|
}
|
|
|
|
static int pqi_aio_submit_io(struct pqi_ctrl_info *ctrl_info,
|
|
struct scsi_cmnd *scmd, u32 aio_handle, u8 *cdb,
|
|
unsigned int cdb_length, struct pqi_queue_group *queue_group,
|
|
struct pqi_encryption_info *encryption_info, bool raid_bypass)
|
|
{
|
|
int rc;
|
|
struct pqi_io_request *io_request;
|
|
struct pqi_aio_path_request *request;
|
|
|
|
io_request = pqi_alloc_io_request(ctrl_info);
|
|
io_request->io_complete_callback = pqi_aio_io_complete;
|
|
io_request->scmd = scmd;
|
|
io_request->raid_bypass = raid_bypass;
|
|
|
|
request = io_request->iu;
|
|
memset(request, 0,
|
|
offsetof(struct pqi_raid_path_request, sg_descriptors));
|
|
|
|
request->header.iu_type = PQI_REQUEST_IU_AIO_PATH_IO;
|
|
put_unaligned_le32(aio_handle, &request->nexus_id);
|
|
put_unaligned_le32(scsi_bufflen(scmd), &request->buffer_length);
|
|
request->task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
|
|
put_unaligned_le16(io_request->index, &request->request_id);
|
|
request->error_index = request->request_id;
|
|
if (cdb_length > sizeof(request->cdb))
|
|
cdb_length = sizeof(request->cdb);
|
|
request->cdb_length = cdb_length;
|
|
memcpy(request->cdb, cdb, cdb_length);
|
|
|
|
switch (scmd->sc_data_direction) {
|
|
case DMA_TO_DEVICE:
|
|
request->data_direction = SOP_READ_FLAG;
|
|
break;
|
|
case DMA_FROM_DEVICE:
|
|
request->data_direction = SOP_WRITE_FLAG;
|
|
break;
|
|
case DMA_NONE:
|
|
request->data_direction = SOP_NO_DIRECTION_FLAG;
|
|
break;
|
|
case DMA_BIDIRECTIONAL:
|
|
request->data_direction = SOP_BIDIRECTIONAL;
|
|
break;
|
|
default:
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"unknown data direction: %d\n",
|
|
scmd->sc_data_direction);
|
|
break;
|
|
}
|
|
|
|
if (encryption_info) {
|
|
request->encryption_enable = true;
|
|
put_unaligned_le16(encryption_info->data_encryption_key_index,
|
|
&request->data_encryption_key_index);
|
|
put_unaligned_le32(encryption_info->encrypt_tweak_lower,
|
|
&request->encrypt_tweak_lower);
|
|
put_unaligned_le32(encryption_info->encrypt_tweak_upper,
|
|
&request->encrypt_tweak_upper);
|
|
}
|
|
|
|
rc = pqi_build_aio_sg_list(ctrl_info, request, scmd, io_request);
|
|
if (rc) {
|
|
pqi_free_io_request(io_request);
|
|
return SCSI_MLQUEUE_HOST_BUSY;
|
|
}
|
|
|
|
pqi_start_io(ctrl_info, queue_group, AIO_PATH, io_request);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline u16 pqi_get_hw_queue(struct pqi_ctrl_info *ctrl_info,
|
|
struct scsi_cmnd *scmd)
|
|
{
|
|
u16 hw_queue;
|
|
|
|
hw_queue = blk_mq_unique_tag_to_hwq(blk_mq_unique_tag(scmd->request));
|
|
if (hw_queue > ctrl_info->max_hw_queue_index)
|
|
hw_queue = 0;
|
|
|
|
return hw_queue;
|
|
}
|
|
|
|
/*
|
|
* This function gets called just before we hand the completed SCSI request
|
|
* back to the SML.
|
|
*/
|
|
|
|
void pqi_prep_for_scsi_done(struct scsi_cmnd *scmd)
|
|
{
|
|
struct pqi_scsi_dev *device;
|
|
|
|
device = scmd->device->hostdata;
|
|
atomic_dec(&device->scsi_cmds_outstanding);
|
|
}
|
|
|
|
static int pqi_scsi_queue_command(struct Scsi_Host *shost,
|
|
struct scsi_cmnd *scmd)
|
|
{
|
|
int rc;
|
|
struct pqi_ctrl_info *ctrl_info;
|
|
struct pqi_scsi_dev *device;
|
|
u16 hw_queue;
|
|
struct pqi_queue_group *queue_group;
|
|
bool raid_bypassed;
|
|
|
|
device = scmd->device->hostdata;
|
|
ctrl_info = shost_to_hba(shost);
|
|
|
|
atomic_inc(&device->scsi_cmds_outstanding);
|
|
|
|
if (pqi_ctrl_offline(ctrl_info)) {
|
|
set_host_byte(scmd, DID_NO_CONNECT);
|
|
pqi_scsi_done(scmd);
|
|
return 0;
|
|
}
|
|
|
|
pqi_ctrl_busy(ctrl_info);
|
|
if (pqi_ctrl_blocked(ctrl_info) || pqi_device_in_reset(device)) {
|
|
rc = SCSI_MLQUEUE_HOST_BUSY;
|
|
goto out;
|
|
}
|
|
|
|
/*
|
|
* This is necessary because the SML doesn't zero out this field during
|
|
* error recovery.
|
|
*/
|
|
scmd->result = 0;
|
|
|
|
hw_queue = pqi_get_hw_queue(ctrl_info, scmd);
|
|
queue_group = &ctrl_info->queue_groups[hw_queue];
|
|
|
|
if (pqi_is_logical_device(device)) {
|
|
raid_bypassed = false;
|
|
if (device->raid_bypass_enabled &&
|
|
!blk_rq_is_passthrough(scmd->request)) {
|
|
rc = pqi_raid_bypass_submit_scsi_cmd(ctrl_info, device,
|
|
scmd, queue_group);
|
|
if (rc == 0 || rc == SCSI_MLQUEUE_HOST_BUSY)
|
|
raid_bypassed = true;
|
|
}
|
|
if (!raid_bypassed)
|
|
rc = pqi_raid_submit_scsi_cmd(ctrl_info, device, scmd,
|
|
queue_group);
|
|
} else {
|
|
if (device->aio_enabled)
|
|
rc = pqi_aio_submit_scsi_cmd(ctrl_info, device, scmd,
|
|
queue_group);
|
|
else
|
|
rc = pqi_raid_submit_scsi_cmd(ctrl_info, device, scmd,
|
|
queue_group);
|
|
}
|
|
|
|
out:
|
|
pqi_ctrl_unbusy(ctrl_info);
|
|
if (rc)
|
|
atomic_dec(&device->scsi_cmds_outstanding);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int pqi_wait_until_queued_io_drained(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_queue_group *queue_group)
|
|
{
|
|
unsigned int path;
|
|
unsigned long flags;
|
|
bool list_is_empty;
|
|
|
|
for (path = 0; path < 2; path++) {
|
|
while (1) {
|
|
spin_lock_irqsave(
|
|
&queue_group->submit_lock[path], flags);
|
|
list_is_empty =
|
|
list_empty(&queue_group->request_list[path]);
|
|
spin_unlock_irqrestore(
|
|
&queue_group->submit_lock[path], flags);
|
|
if (list_is_empty)
|
|
break;
|
|
pqi_check_ctrl_health(ctrl_info);
|
|
if (pqi_ctrl_offline(ctrl_info))
|
|
return -ENXIO;
|
|
usleep_range(1000, 2000);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int pqi_wait_until_inbound_queues_empty(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
int rc;
|
|
unsigned int i;
|
|
unsigned int path;
|
|
struct pqi_queue_group *queue_group;
|
|
pqi_index_t iq_pi;
|
|
pqi_index_t iq_ci;
|
|
|
|
for (i = 0; i < ctrl_info->num_queue_groups; i++) {
|
|
queue_group = &ctrl_info->queue_groups[i];
|
|
|
|
rc = pqi_wait_until_queued_io_drained(ctrl_info, queue_group);
|
|
if (rc)
|
|
return rc;
|
|
|
|
for (path = 0; path < 2; path++) {
|
|
iq_pi = queue_group->iq_pi_copy[path];
|
|
|
|
while (1) {
|
|
iq_ci = *queue_group->iq_ci[path];
|
|
if (iq_ci == iq_pi)
|
|
break;
|
|
pqi_check_ctrl_health(ctrl_info);
|
|
if (pqi_ctrl_offline(ctrl_info))
|
|
return -ENXIO;
|
|
usleep_range(1000, 2000);
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void pqi_fail_io_queued_for_device(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_scsi_dev *device)
|
|
{
|
|
unsigned int i;
|
|
unsigned int path;
|
|
struct pqi_queue_group *queue_group;
|
|
unsigned long flags;
|
|
struct pqi_io_request *io_request;
|
|
struct pqi_io_request *next;
|
|
struct scsi_cmnd *scmd;
|
|
struct pqi_scsi_dev *scsi_device;
|
|
|
|
for (i = 0; i < ctrl_info->num_queue_groups; i++) {
|
|
queue_group = &ctrl_info->queue_groups[i];
|
|
|
|
for (path = 0; path < 2; path++) {
|
|
spin_lock_irqsave(
|
|
&queue_group->submit_lock[path], flags);
|
|
|
|
list_for_each_entry_safe(io_request, next,
|
|
&queue_group->request_list[path],
|
|
request_list_entry) {
|
|
scmd = io_request->scmd;
|
|
if (!scmd)
|
|
continue;
|
|
|
|
scsi_device = scmd->device->hostdata;
|
|
if (scsi_device != device)
|
|
continue;
|
|
|
|
list_del(&io_request->request_list_entry);
|
|
set_host_byte(scmd, DID_RESET);
|
|
pqi_scsi_done(scmd);
|
|
}
|
|
|
|
spin_unlock_irqrestore(
|
|
&queue_group->submit_lock[path], flags);
|
|
}
|
|
}
|
|
}
|
|
|
|
static int pqi_device_wait_for_pending_io(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_scsi_dev *device)
|
|
{
|
|
while (atomic_read(&device->scsi_cmds_outstanding)) {
|
|
pqi_check_ctrl_health(ctrl_info);
|
|
if (pqi_ctrl_offline(ctrl_info))
|
|
return -ENXIO;
|
|
usleep_range(1000, 2000);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int pqi_ctrl_wait_for_pending_io(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
bool io_pending;
|
|
unsigned long flags;
|
|
struct pqi_scsi_dev *device;
|
|
|
|
while (1) {
|
|
io_pending = false;
|
|
|
|
spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
|
|
list_for_each_entry(device, &ctrl_info->scsi_device_list,
|
|
scsi_device_list_entry) {
|
|
if (atomic_read(&device->scsi_cmds_outstanding)) {
|
|
io_pending = true;
|
|
break;
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock,
|
|
flags);
|
|
|
|
if (!io_pending)
|
|
break;
|
|
|
|
pqi_check_ctrl_health(ctrl_info);
|
|
if (pqi_ctrl_offline(ctrl_info))
|
|
return -ENXIO;
|
|
|
|
usleep_range(1000, 2000);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void pqi_lun_reset_complete(struct pqi_io_request *io_request,
|
|
void *context)
|
|
{
|
|
struct completion *waiting = context;
|
|
|
|
complete(waiting);
|
|
}
|
|
|
|
#define PQI_LUN_RESET_TIMEOUT_SECS 10
|
|
|
|
static int pqi_wait_for_lun_reset_completion(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_scsi_dev *device, struct completion *wait)
|
|
{
|
|
int rc;
|
|
|
|
while (1) {
|
|
if (wait_for_completion_io_timeout(wait,
|
|
PQI_LUN_RESET_TIMEOUT_SECS * HZ)) {
|
|
rc = 0;
|
|
break;
|
|
}
|
|
|
|
pqi_check_ctrl_health(ctrl_info);
|
|
if (pqi_ctrl_offline(ctrl_info)) {
|
|
rc = -ENXIO;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int pqi_lun_reset(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_scsi_dev *device)
|
|
{
|
|
int rc;
|
|
struct pqi_io_request *io_request;
|
|
DECLARE_COMPLETION_ONSTACK(wait);
|
|
struct pqi_task_management_request *request;
|
|
|
|
io_request = pqi_alloc_io_request(ctrl_info);
|
|
io_request->io_complete_callback = pqi_lun_reset_complete;
|
|
io_request->context = &wait;
|
|
|
|
request = io_request->iu;
|
|
memset(request, 0, sizeof(*request));
|
|
|
|
request->header.iu_type = PQI_REQUEST_IU_TASK_MANAGEMENT;
|
|
put_unaligned_le16(sizeof(*request) - PQI_REQUEST_HEADER_LENGTH,
|
|
&request->header.iu_length);
|
|
put_unaligned_le16(io_request->index, &request->request_id);
|
|
memcpy(request->lun_number, device->scsi3addr,
|
|
sizeof(request->lun_number));
|
|
request->task_management_function = SOP_TASK_MANAGEMENT_LUN_RESET;
|
|
|
|
pqi_start_io(ctrl_info,
|
|
&ctrl_info->queue_groups[PQI_DEFAULT_QUEUE_GROUP], RAID_PATH,
|
|
io_request);
|
|
|
|
rc = pqi_wait_for_lun_reset_completion(ctrl_info, device, &wait);
|
|
if (rc == 0)
|
|
rc = io_request->status;
|
|
|
|
pqi_free_io_request(io_request);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/* Performs a reset at the LUN level. */
|
|
|
|
static int pqi_device_reset(struct pqi_ctrl_info *ctrl_info,
|
|
struct pqi_scsi_dev *device)
|
|
{
|
|
int rc;
|
|
|
|
rc = pqi_lun_reset(ctrl_info, device);
|
|
if (rc == 0)
|
|
rc = pqi_device_wait_for_pending_io(ctrl_info, device);
|
|
|
|
return rc == 0 ? SUCCESS : FAILED;
|
|
}
|
|
|
|
static int pqi_eh_device_reset_handler(struct scsi_cmnd *scmd)
|
|
{
|
|
int rc;
|
|
struct Scsi_Host *shost;
|
|
struct pqi_ctrl_info *ctrl_info;
|
|
struct pqi_scsi_dev *device;
|
|
|
|
shost = scmd->device->host;
|
|
ctrl_info = shost_to_hba(shost);
|
|
device = scmd->device->hostdata;
|
|
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"resetting scsi %d:%d:%d:%d\n",
|
|
shost->host_no, device->bus, device->target, device->lun);
|
|
|
|
pqi_check_ctrl_health(ctrl_info);
|
|
if (pqi_ctrl_offline(ctrl_info)) {
|
|
rc = FAILED;
|
|
goto out;
|
|
}
|
|
|
|
mutex_lock(&ctrl_info->lun_reset_mutex);
|
|
|
|
pqi_ctrl_block_requests(ctrl_info);
|
|
pqi_ctrl_wait_until_quiesced(ctrl_info);
|
|
pqi_fail_io_queued_for_device(ctrl_info, device);
|
|
rc = pqi_wait_until_inbound_queues_empty(ctrl_info);
|
|
pqi_device_reset_start(device);
|
|
pqi_ctrl_unblock_requests(ctrl_info);
|
|
|
|
if (rc)
|
|
rc = FAILED;
|
|
else
|
|
rc = pqi_device_reset(ctrl_info, device);
|
|
|
|
pqi_device_reset_done(device);
|
|
|
|
mutex_unlock(&ctrl_info->lun_reset_mutex);
|
|
|
|
out:
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"reset of scsi %d:%d:%d:%d: %s\n",
|
|
shost->host_no, device->bus, device->target, device->lun,
|
|
rc == SUCCESS ? "SUCCESS" : "FAILED");
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int pqi_slave_alloc(struct scsi_device *sdev)
|
|
{
|
|
struct pqi_scsi_dev *device;
|
|
unsigned long flags;
|
|
struct pqi_ctrl_info *ctrl_info;
|
|
struct scsi_target *starget;
|
|
struct sas_rphy *rphy;
|
|
|
|
ctrl_info = shost_to_hba(sdev->host);
|
|
|
|
spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
|
|
|
|
if (sdev_channel(sdev) == PQI_PHYSICAL_DEVICE_BUS) {
|
|
starget = scsi_target(sdev);
|
|
rphy = target_to_rphy(starget);
|
|
device = pqi_find_device_by_sas_rphy(ctrl_info, rphy);
|
|
if (device) {
|
|
device->target = sdev_id(sdev);
|
|
device->lun = sdev->lun;
|
|
device->target_lun_valid = true;
|
|
}
|
|
} else {
|
|
device = pqi_find_scsi_dev(ctrl_info, sdev_channel(sdev),
|
|
sdev_id(sdev), sdev->lun);
|
|
}
|
|
|
|
if (device) {
|
|
sdev->hostdata = device;
|
|
device->sdev = sdev;
|
|
if (device->queue_depth) {
|
|
device->advertised_queue_depth = device->queue_depth;
|
|
scsi_change_queue_depth(sdev,
|
|
device->advertised_queue_depth);
|
|
}
|
|
}
|
|
|
|
spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int pqi_map_queues(struct Scsi_Host *shost)
|
|
{
|
|
struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost);
|
|
|
|
return blk_mq_pci_map_queues(&shost->tag_set, ctrl_info->pci_dev, 0);
|
|
}
|
|
|
|
static int pqi_getpciinfo_ioctl(struct pqi_ctrl_info *ctrl_info,
|
|
void __user *arg)
|
|
{
|
|
struct pci_dev *pci_dev;
|
|
u32 subsystem_vendor;
|
|
u32 subsystem_device;
|
|
cciss_pci_info_struct pciinfo;
|
|
|
|
if (!arg)
|
|
return -EINVAL;
|
|
|
|
pci_dev = ctrl_info->pci_dev;
|
|
|
|
pciinfo.domain = pci_domain_nr(pci_dev->bus);
|
|
pciinfo.bus = pci_dev->bus->number;
|
|
pciinfo.dev_fn = pci_dev->devfn;
|
|
subsystem_vendor = pci_dev->subsystem_vendor;
|
|
subsystem_device = pci_dev->subsystem_device;
|
|
pciinfo.board_id = ((subsystem_device << 16) & 0xffff0000) |
|
|
subsystem_vendor;
|
|
|
|
if (copy_to_user(arg, &pciinfo, sizeof(pciinfo)))
|
|
return -EFAULT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int pqi_getdrivver_ioctl(void __user *arg)
|
|
{
|
|
u32 version;
|
|
|
|
if (!arg)
|
|
return -EINVAL;
|
|
|
|
version = (DRIVER_MAJOR << 28) | (DRIVER_MINOR << 24) |
|
|
(DRIVER_RELEASE << 16) | DRIVER_REVISION;
|
|
|
|
if (copy_to_user(arg, &version, sizeof(version)))
|
|
return -EFAULT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct ciss_error_info {
|
|
u8 scsi_status;
|
|
int command_status;
|
|
size_t sense_data_length;
|
|
};
|
|
|
|
static void pqi_error_info_to_ciss(struct pqi_raid_error_info *pqi_error_info,
|
|
struct ciss_error_info *ciss_error_info)
|
|
{
|
|
int ciss_cmd_status;
|
|
size_t sense_data_length;
|
|
|
|
switch (pqi_error_info->data_out_result) {
|
|
case PQI_DATA_IN_OUT_GOOD:
|
|
ciss_cmd_status = CISS_CMD_STATUS_SUCCESS;
|
|
break;
|
|
case PQI_DATA_IN_OUT_UNDERFLOW:
|
|
ciss_cmd_status = CISS_CMD_STATUS_DATA_UNDERRUN;
|
|
break;
|
|
case PQI_DATA_IN_OUT_BUFFER_OVERFLOW:
|
|
ciss_cmd_status = CISS_CMD_STATUS_DATA_OVERRUN;
|
|
break;
|
|
case PQI_DATA_IN_OUT_PROTOCOL_ERROR:
|
|
case PQI_DATA_IN_OUT_BUFFER_ERROR:
|
|
case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_DESCRIPTOR_AREA:
|
|
case PQI_DATA_IN_OUT_BUFFER_OVERFLOW_BRIDGE:
|
|
case PQI_DATA_IN_OUT_ERROR:
|
|
ciss_cmd_status = CISS_CMD_STATUS_PROTOCOL_ERROR;
|
|
break;
|
|
case PQI_DATA_IN_OUT_HARDWARE_ERROR:
|
|
case PQI_DATA_IN_OUT_PCIE_FABRIC_ERROR:
|
|
case PQI_DATA_IN_OUT_PCIE_COMPLETION_TIMEOUT:
|
|
case PQI_DATA_IN_OUT_PCIE_COMPLETER_ABORT_RECEIVED:
|
|
case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST_RECEIVED:
|
|
case PQI_DATA_IN_OUT_PCIE_ECRC_CHECK_FAILED:
|
|
case PQI_DATA_IN_OUT_PCIE_UNSUPPORTED_REQUEST:
|
|
case PQI_DATA_IN_OUT_PCIE_ACS_VIOLATION:
|
|
case PQI_DATA_IN_OUT_PCIE_TLP_PREFIX_BLOCKED:
|
|
case PQI_DATA_IN_OUT_PCIE_POISONED_MEMORY_READ:
|
|
ciss_cmd_status = CISS_CMD_STATUS_HARDWARE_ERROR;
|
|
break;
|
|
case PQI_DATA_IN_OUT_UNSOLICITED_ABORT:
|
|
ciss_cmd_status = CISS_CMD_STATUS_UNSOLICITED_ABORT;
|
|
break;
|
|
case PQI_DATA_IN_OUT_ABORTED:
|
|
ciss_cmd_status = CISS_CMD_STATUS_ABORTED;
|
|
break;
|
|
case PQI_DATA_IN_OUT_TIMEOUT:
|
|
ciss_cmd_status = CISS_CMD_STATUS_TIMEOUT;
|
|
break;
|
|
default:
|
|
ciss_cmd_status = CISS_CMD_STATUS_TARGET_STATUS;
|
|
break;
|
|
}
|
|
|
|
sense_data_length =
|
|
get_unaligned_le16(&pqi_error_info->sense_data_length);
|
|
if (sense_data_length == 0)
|
|
sense_data_length =
|
|
get_unaligned_le16(&pqi_error_info->response_data_length);
|
|
if (sense_data_length)
|
|
if (sense_data_length > sizeof(pqi_error_info->data))
|
|
sense_data_length = sizeof(pqi_error_info->data);
|
|
|
|
ciss_error_info->scsi_status = pqi_error_info->status;
|
|
ciss_error_info->command_status = ciss_cmd_status;
|
|
ciss_error_info->sense_data_length = sense_data_length;
|
|
}
|
|
|
|
static int pqi_passthru_ioctl(struct pqi_ctrl_info *ctrl_info, void __user *arg)
|
|
{
|
|
int rc;
|
|
char *kernel_buffer = NULL;
|
|
u16 iu_length;
|
|
size_t sense_data_length;
|
|
IOCTL_Command_struct iocommand;
|
|
struct pqi_raid_path_request request;
|
|
struct pqi_raid_error_info pqi_error_info;
|
|
struct ciss_error_info ciss_error_info;
|
|
|
|
if (pqi_ctrl_offline(ctrl_info))
|
|
return -ENXIO;
|
|
if (!arg)
|
|
return -EINVAL;
|
|
if (!capable(CAP_SYS_RAWIO))
|
|
return -EPERM;
|
|
if (copy_from_user(&iocommand, arg, sizeof(iocommand)))
|
|
return -EFAULT;
|
|
if (iocommand.buf_size < 1 &&
|
|
iocommand.Request.Type.Direction != XFER_NONE)
|
|
return -EINVAL;
|
|
if (iocommand.Request.CDBLen > sizeof(request.cdb))
|
|
return -EINVAL;
|
|
if (iocommand.Request.Type.Type != TYPE_CMD)
|
|
return -EINVAL;
|
|
|
|
switch (iocommand.Request.Type.Direction) {
|
|
case XFER_NONE:
|
|
case XFER_WRITE:
|
|
case XFER_READ:
|
|
case XFER_READ | XFER_WRITE:
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (iocommand.buf_size > 0) {
|
|
kernel_buffer = kmalloc(iocommand.buf_size, GFP_KERNEL);
|
|
if (!kernel_buffer)
|
|
return -ENOMEM;
|
|
if (iocommand.Request.Type.Direction & XFER_WRITE) {
|
|
if (copy_from_user(kernel_buffer, iocommand.buf,
|
|
iocommand.buf_size)) {
|
|
rc = -EFAULT;
|
|
goto out;
|
|
}
|
|
} else {
|
|
memset(kernel_buffer, 0, iocommand.buf_size);
|
|
}
|
|
}
|
|
|
|
memset(&request, 0, sizeof(request));
|
|
|
|
request.header.iu_type = PQI_REQUEST_IU_RAID_PATH_IO;
|
|
iu_length = offsetof(struct pqi_raid_path_request, sg_descriptors) -
|
|
PQI_REQUEST_HEADER_LENGTH;
|
|
memcpy(request.lun_number, iocommand.LUN_info.LunAddrBytes,
|
|
sizeof(request.lun_number));
|
|
memcpy(request.cdb, iocommand.Request.CDB, iocommand.Request.CDBLen);
|
|
request.additional_cdb_bytes_usage = SOP_ADDITIONAL_CDB_BYTES_0;
|
|
|
|
switch (iocommand.Request.Type.Direction) {
|
|
case XFER_NONE:
|
|
request.data_direction = SOP_NO_DIRECTION_FLAG;
|
|
break;
|
|
case XFER_WRITE:
|
|
request.data_direction = SOP_WRITE_FLAG;
|
|
break;
|
|
case XFER_READ:
|
|
request.data_direction = SOP_READ_FLAG;
|
|
break;
|
|
case XFER_READ | XFER_WRITE:
|
|
request.data_direction = SOP_BIDIRECTIONAL;
|
|
break;
|
|
}
|
|
|
|
request.task_attribute = SOP_TASK_ATTRIBUTE_SIMPLE;
|
|
|
|
if (iocommand.buf_size > 0) {
|
|
put_unaligned_le32(iocommand.buf_size, &request.buffer_length);
|
|
|
|
rc = pqi_map_single(ctrl_info->pci_dev,
|
|
&request.sg_descriptors[0], kernel_buffer,
|
|
iocommand.buf_size, PCI_DMA_BIDIRECTIONAL);
|
|
if (rc)
|
|
goto out;
|
|
|
|
iu_length += sizeof(request.sg_descriptors[0]);
|
|
}
|
|
|
|
put_unaligned_le16(iu_length, &request.header.iu_length);
|
|
|
|
rc = pqi_submit_raid_request_synchronous(ctrl_info, &request.header,
|
|
PQI_SYNC_FLAGS_INTERRUPTABLE, &pqi_error_info, NO_TIMEOUT);
|
|
|
|
if (iocommand.buf_size > 0)
|
|
pqi_pci_unmap(ctrl_info->pci_dev, request.sg_descriptors, 1,
|
|
PCI_DMA_BIDIRECTIONAL);
|
|
|
|
memset(&iocommand.error_info, 0, sizeof(iocommand.error_info));
|
|
|
|
if (rc == 0) {
|
|
pqi_error_info_to_ciss(&pqi_error_info, &ciss_error_info);
|
|
iocommand.error_info.ScsiStatus = ciss_error_info.scsi_status;
|
|
iocommand.error_info.CommandStatus =
|
|
ciss_error_info.command_status;
|
|
sense_data_length = ciss_error_info.sense_data_length;
|
|
if (sense_data_length) {
|
|
if (sense_data_length >
|
|
sizeof(iocommand.error_info.SenseInfo))
|
|
sense_data_length =
|
|
sizeof(iocommand.error_info.SenseInfo);
|
|
memcpy(iocommand.error_info.SenseInfo,
|
|
pqi_error_info.data, sense_data_length);
|
|
iocommand.error_info.SenseLen = sense_data_length;
|
|
}
|
|
}
|
|
|
|
if (copy_to_user(arg, &iocommand, sizeof(iocommand))) {
|
|
rc = -EFAULT;
|
|
goto out;
|
|
}
|
|
|
|
if (rc == 0 && iocommand.buf_size > 0 &&
|
|
(iocommand.Request.Type.Direction & XFER_READ)) {
|
|
if (copy_to_user(iocommand.buf, kernel_buffer,
|
|
iocommand.buf_size)) {
|
|
rc = -EFAULT;
|
|
}
|
|
}
|
|
|
|
out:
|
|
kfree(kernel_buffer);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int pqi_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
|
|
{
|
|
int rc;
|
|
struct pqi_ctrl_info *ctrl_info;
|
|
|
|
ctrl_info = shost_to_hba(sdev->host);
|
|
|
|
switch (cmd) {
|
|
case CCISS_DEREGDISK:
|
|
case CCISS_REGNEWDISK:
|
|
case CCISS_REGNEWD:
|
|
rc = pqi_scan_scsi_devices(ctrl_info);
|
|
break;
|
|
case CCISS_GETPCIINFO:
|
|
rc = pqi_getpciinfo_ioctl(ctrl_info, arg);
|
|
break;
|
|
case CCISS_GETDRIVVER:
|
|
rc = pqi_getdrivver_ioctl(arg);
|
|
break;
|
|
case CCISS_PASSTHRU:
|
|
rc = pqi_passthru_ioctl(ctrl_info, arg);
|
|
break;
|
|
default:
|
|
rc = -EINVAL;
|
|
break;
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
static ssize_t pqi_version_show(struct device *dev,
|
|
struct device_attribute *attr, char *buffer)
|
|
{
|
|
ssize_t count = 0;
|
|
struct Scsi_Host *shost;
|
|
struct pqi_ctrl_info *ctrl_info;
|
|
|
|
shost = class_to_shost(dev);
|
|
ctrl_info = shost_to_hba(shost);
|
|
|
|
count += snprintf(buffer + count, PAGE_SIZE - count,
|
|
" driver: %s\n", DRIVER_VERSION BUILD_TIMESTAMP);
|
|
|
|
count += snprintf(buffer + count, PAGE_SIZE - count,
|
|
"firmware: %s\n", ctrl_info->firmware_version);
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t pqi_host_rescan_store(struct device *dev,
|
|
struct device_attribute *attr, const char *buffer, size_t count)
|
|
{
|
|
struct Scsi_Host *shost = class_to_shost(dev);
|
|
|
|
pqi_scan_start(shost);
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t pqi_lockup_action_show(struct device *dev,
|
|
struct device_attribute *attr, char *buffer)
|
|
{
|
|
int count = 0;
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) {
|
|
if (pqi_lockup_actions[i].action == pqi_lockup_action)
|
|
count += snprintf(buffer + count, PAGE_SIZE - count,
|
|
"[%s] ", pqi_lockup_actions[i].name);
|
|
else
|
|
count += snprintf(buffer + count, PAGE_SIZE - count,
|
|
"%s ", pqi_lockup_actions[i].name);
|
|
}
|
|
|
|
count += snprintf(buffer + count, PAGE_SIZE - count, "\n");
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t pqi_lockup_action_store(struct device *dev,
|
|
struct device_attribute *attr, const char *buffer, size_t count)
|
|
{
|
|
unsigned int i;
|
|
char *action_name;
|
|
char action_name_buffer[32];
|
|
|
|
strlcpy(action_name_buffer, buffer, sizeof(action_name_buffer));
|
|
action_name = strstrip(action_name_buffer);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) {
|
|
if (strcmp(action_name, pqi_lockup_actions[i].name) == 0) {
|
|
pqi_lockup_action = pqi_lockup_actions[i].action;
|
|
return count;
|
|
}
|
|
}
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
static DEVICE_ATTR(version, 0444, pqi_version_show, NULL);
|
|
static DEVICE_ATTR(rescan, 0200, NULL, pqi_host_rescan_store);
|
|
static DEVICE_ATTR(lockup_action, 0644,
|
|
pqi_lockup_action_show, pqi_lockup_action_store);
|
|
|
|
static struct device_attribute *pqi_shost_attrs[] = {
|
|
&dev_attr_version,
|
|
&dev_attr_rescan,
|
|
&dev_attr_lockup_action,
|
|
NULL
|
|
};
|
|
|
|
static ssize_t pqi_sas_address_show(struct device *dev,
|
|
struct device_attribute *attr, char *buffer)
|
|
{
|
|
struct pqi_ctrl_info *ctrl_info;
|
|
struct scsi_device *sdev;
|
|
struct pqi_scsi_dev *device;
|
|
unsigned long flags;
|
|
u64 sas_address;
|
|
|
|
sdev = to_scsi_device(dev);
|
|
ctrl_info = shost_to_hba(sdev->host);
|
|
|
|
spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
|
|
|
|
device = sdev->hostdata;
|
|
if (pqi_is_logical_device(device)) {
|
|
spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock,
|
|
flags);
|
|
return -ENODEV;
|
|
}
|
|
sas_address = device->sas_address;
|
|
|
|
spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
|
|
|
|
return snprintf(buffer, PAGE_SIZE, "0x%016llx\n", sas_address);
|
|
}
|
|
|
|
static ssize_t pqi_ssd_smart_path_enabled_show(struct device *dev,
|
|
struct device_attribute *attr, char *buffer)
|
|
{
|
|
struct pqi_ctrl_info *ctrl_info;
|
|
struct scsi_device *sdev;
|
|
struct pqi_scsi_dev *device;
|
|
unsigned long flags;
|
|
|
|
sdev = to_scsi_device(dev);
|
|
ctrl_info = shost_to_hba(sdev->host);
|
|
|
|
spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
|
|
|
|
device = sdev->hostdata;
|
|
buffer[0] = device->raid_bypass_enabled ? '1' : '0';
|
|
buffer[1] = '\n';
|
|
buffer[2] = '\0';
|
|
|
|
spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
|
|
|
|
return 2;
|
|
}
|
|
|
|
static ssize_t pqi_raid_level_show(struct device *dev,
|
|
struct device_attribute *attr, char *buffer)
|
|
{
|
|
struct pqi_ctrl_info *ctrl_info;
|
|
struct scsi_device *sdev;
|
|
struct pqi_scsi_dev *device;
|
|
unsigned long flags;
|
|
char *raid_level;
|
|
|
|
sdev = to_scsi_device(dev);
|
|
ctrl_info = shost_to_hba(sdev->host);
|
|
|
|
spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
|
|
|
|
device = sdev->hostdata;
|
|
|
|
if (pqi_is_logical_device(device))
|
|
raid_level = pqi_raid_level_to_string(device->raid_level);
|
|
else
|
|
raid_level = "N/A";
|
|
|
|
spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
|
|
|
|
return snprintf(buffer, PAGE_SIZE, "%s\n", raid_level);
|
|
}
|
|
|
|
static DEVICE_ATTR(sas_address, 0444, pqi_sas_address_show, NULL);
|
|
static DEVICE_ATTR(ssd_smart_path_enabled, 0444,
|
|
pqi_ssd_smart_path_enabled_show, NULL);
|
|
static DEVICE_ATTR(raid_level, 0444, pqi_raid_level_show, NULL);
|
|
|
|
static struct device_attribute *pqi_sdev_attrs[] = {
|
|
&dev_attr_sas_address,
|
|
&dev_attr_ssd_smart_path_enabled,
|
|
&dev_attr_raid_level,
|
|
NULL
|
|
};
|
|
|
|
static struct scsi_host_template pqi_driver_template = {
|
|
.module = THIS_MODULE,
|
|
.name = DRIVER_NAME_SHORT,
|
|
.proc_name = DRIVER_NAME_SHORT,
|
|
.queuecommand = pqi_scsi_queue_command,
|
|
.scan_start = pqi_scan_start,
|
|
.scan_finished = pqi_scan_finished,
|
|
.this_id = -1,
|
|
.use_clustering = ENABLE_CLUSTERING,
|
|
.eh_device_reset_handler = pqi_eh_device_reset_handler,
|
|
.ioctl = pqi_ioctl,
|
|
.slave_alloc = pqi_slave_alloc,
|
|
.map_queues = pqi_map_queues,
|
|
.sdev_attrs = pqi_sdev_attrs,
|
|
.shost_attrs = pqi_shost_attrs,
|
|
};
|
|
|
|
static int pqi_register_scsi(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
int rc;
|
|
struct Scsi_Host *shost;
|
|
|
|
shost = scsi_host_alloc(&pqi_driver_template, sizeof(ctrl_info));
|
|
if (!shost) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"scsi_host_alloc failed for controller %u\n",
|
|
ctrl_info->ctrl_id);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
shost->io_port = 0;
|
|
shost->n_io_port = 0;
|
|
shost->this_id = -1;
|
|
shost->max_channel = PQI_MAX_BUS;
|
|
shost->max_cmd_len = MAX_COMMAND_SIZE;
|
|
shost->max_lun = ~0;
|
|
shost->max_id = ~0;
|
|
shost->max_sectors = ctrl_info->max_sectors;
|
|
shost->can_queue = ctrl_info->scsi_ml_can_queue;
|
|
shost->cmd_per_lun = shost->can_queue;
|
|
shost->sg_tablesize = ctrl_info->sg_tablesize;
|
|
shost->transportt = pqi_sas_transport_template;
|
|
shost->irq = pci_irq_vector(ctrl_info->pci_dev, 0);
|
|
shost->unique_id = shost->irq;
|
|
shost->nr_hw_queues = ctrl_info->num_queue_groups;
|
|
shost->hostdata[0] = (unsigned long)ctrl_info;
|
|
|
|
rc = scsi_add_host(shost, &ctrl_info->pci_dev->dev);
|
|
if (rc) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"scsi_add_host failed for controller %u\n",
|
|
ctrl_info->ctrl_id);
|
|
goto free_host;
|
|
}
|
|
|
|
rc = pqi_add_sas_host(shost, ctrl_info);
|
|
if (rc) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"add SAS host failed for controller %u\n",
|
|
ctrl_info->ctrl_id);
|
|
goto remove_host;
|
|
}
|
|
|
|
ctrl_info->scsi_host = shost;
|
|
|
|
return 0;
|
|
|
|
remove_host:
|
|
scsi_remove_host(shost);
|
|
free_host:
|
|
scsi_host_put(shost);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void pqi_unregister_scsi(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
struct Scsi_Host *shost;
|
|
|
|
pqi_delete_sas_host(ctrl_info);
|
|
|
|
shost = ctrl_info->scsi_host;
|
|
if (!shost)
|
|
return;
|
|
|
|
scsi_remove_host(shost);
|
|
scsi_host_put(shost);
|
|
}
|
|
|
|
static int pqi_wait_for_pqi_reset_completion(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
int rc = 0;
|
|
struct pqi_device_registers __iomem *pqi_registers;
|
|
unsigned long timeout;
|
|
unsigned int timeout_msecs;
|
|
union pqi_reset_register reset_reg;
|
|
|
|
pqi_registers = ctrl_info->pqi_registers;
|
|
timeout_msecs = readw(&pqi_registers->max_reset_timeout) * 100;
|
|
timeout = msecs_to_jiffies(timeout_msecs) + jiffies;
|
|
|
|
while (1) {
|
|
msleep(PQI_RESET_POLL_INTERVAL_MSECS);
|
|
reset_reg.all_bits = readl(&pqi_registers->device_reset);
|
|
if (reset_reg.bits.reset_action == PQI_RESET_ACTION_COMPLETED)
|
|
break;
|
|
pqi_check_ctrl_health(ctrl_info);
|
|
if (pqi_ctrl_offline(ctrl_info)) {
|
|
rc = -ENXIO;
|
|
break;
|
|
}
|
|
if (time_after(jiffies, timeout)) {
|
|
rc = -ETIMEDOUT;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int pqi_reset(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
int rc;
|
|
union pqi_reset_register reset_reg;
|
|
|
|
if (ctrl_info->pqi_reset_quiesce_supported) {
|
|
rc = sis_pqi_reset_quiesce(ctrl_info);
|
|
if (rc) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"PQI reset failed during quiesce with error %d\n",
|
|
rc);
|
|
return rc;
|
|
}
|
|
}
|
|
|
|
reset_reg.all_bits = 0;
|
|
reset_reg.bits.reset_type = PQI_RESET_TYPE_HARD_RESET;
|
|
reset_reg.bits.reset_action = PQI_RESET_ACTION_RESET;
|
|
|
|
writel(reset_reg.all_bits, &ctrl_info->pqi_registers->device_reset);
|
|
|
|
rc = pqi_wait_for_pqi_reset_completion(ctrl_info);
|
|
if (rc)
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"PQI reset failed with error %d\n", rc);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int pqi_get_ctrl_firmware_version(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
int rc;
|
|
struct bmic_identify_controller *identify;
|
|
|
|
identify = kmalloc(sizeof(*identify), GFP_KERNEL);
|
|
if (!identify)
|
|
return -ENOMEM;
|
|
|
|
rc = pqi_identify_controller(ctrl_info, identify);
|
|
if (rc)
|
|
goto out;
|
|
|
|
memcpy(ctrl_info->firmware_version, identify->firmware_version,
|
|
sizeof(identify->firmware_version));
|
|
ctrl_info->firmware_version[sizeof(identify->firmware_version)] = '\0';
|
|
snprintf(ctrl_info->firmware_version +
|
|
strlen(ctrl_info->firmware_version),
|
|
sizeof(ctrl_info->firmware_version),
|
|
"-%u", get_unaligned_le16(&identify->firmware_build_number));
|
|
|
|
out:
|
|
kfree(identify);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int pqi_process_config_table(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
u32 table_length;
|
|
u32 section_offset;
|
|
void __iomem *table_iomem_addr;
|
|
struct pqi_config_table *config_table;
|
|
struct pqi_config_table_section_header *section;
|
|
|
|
table_length = ctrl_info->config_table_length;
|
|
|
|
config_table = kmalloc(table_length, GFP_KERNEL);
|
|
if (!config_table) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"failed to allocate memory for PQI configuration table\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/*
|
|
* Copy the config table contents from I/O memory space into the
|
|
* temporary buffer.
|
|
*/
|
|
table_iomem_addr = ctrl_info->iomem_base +
|
|
ctrl_info->config_table_offset;
|
|
memcpy_fromio(config_table, table_iomem_addr, table_length);
|
|
|
|
section_offset =
|
|
get_unaligned_le32(&config_table->first_section_offset);
|
|
|
|
while (section_offset) {
|
|
section = (void *)config_table + section_offset;
|
|
|
|
switch (get_unaligned_le16(§ion->section_id)) {
|
|
case PQI_CONFIG_TABLE_SECTION_HEARTBEAT:
|
|
if (pqi_disable_heartbeat)
|
|
dev_warn(&ctrl_info->pci_dev->dev,
|
|
"heartbeat disabled by module parameter\n");
|
|
else
|
|
ctrl_info->heartbeat_counter =
|
|
table_iomem_addr +
|
|
section_offset +
|
|
offsetof(
|
|
struct pqi_config_table_heartbeat,
|
|
heartbeat_counter);
|
|
break;
|
|
}
|
|
|
|
section_offset =
|
|
get_unaligned_le16(§ion->next_section_offset);
|
|
}
|
|
|
|
kfree(config_table);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Switches the controller from PQI mode back into SIS mode. */
|
|
|
|
static int pqi_revert_to_sis_mode(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
int rc;
|
|
|
|
pqi_change_irq_mode(ctrl_info, IRQ_MODE_NONE);
|
|
rc = pqi_reset(ctrl_info);
|
|
if (rc)
|
|
return rc;
|
|
rc = sis_reenable_sis_mode(ctrl_info);
|
|
if (rc) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"re-enabling SIS mode failed with error %d\n", rc);
|
|
return rc;
|
|
}
|
|
pqi_save_ctrl_mode(ctrl_info, SIS_MODE);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* If the controller isn't already in SIS mode, this function forces it into
|
|
* SIS mode.
|
|
*/
|
|
|
|
static int pqi_force_sis_mode(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
if (!sis_is_firmware_running(ctrl_info))
|
|
return -ENXIO;
|
|
|
|
if (pqi_get_ctrl_mode(ctrl_info) == SIS_MODE)
|
|
return 0;
|
|
|
|
if (sis_is_kernel_up(ctrl_info)) {
|
|
pqi_save_ctrl_mode(ctrl_info, SIS_MODE);
|
|
return 0;
|
|
}
|
|
|
|
return pqi_revert_to_sis_mode(ctrl_info);
|
|
}
|
|
|
|
static int pqi_ctrl_init(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
int rc;
|
|
|
|
rc = pqi_force_sis_mode(ctrl_info);
|
|
if (rc)
|
|
return rc;
|
|
|
|
/*
|
|
* Wait until the controller is ready to start accepting SIS
|
|
* commands.
|
|
*/
|
|
rc = sis_wait_for_ctrl_ready(ctrl_info);
|
|
if (rc)
|
|
return rc;
|
|
|
|
/*
|
|
* Get the controller properties. This allows us to determine
|
|
* whether or not it supports PQI mode.
|
|
*/
|
|
rc = sis_get_ctrl_properties(ctrl_info);
|
|
if (rc) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"error obtaining controller properties\n");
|
|
return rc;
|
|
}
|
|
|
|
rc = sis_get_pqi_capabilities(ctrl_info);
|
|
if (rc) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"error obtaining controller capabilities\n");
|
|
return rc;
|
|
}
|
|
|
|
if (reset_devices) {
|
|
if (ctrl_info->max_outstanding_requests >
|
|
PQI_MAX_OUTSTANDING_REQUESTS_KDUMP)
|
|
ctrl_info->max_outstanding_requests =
|
|
PQI_MAX_OUTSTANDING_REQUESTS_KDUMP;
|
|
} else {
|
|
if (ctrl_info->max_outstanding_requests >
|
|
PQI_MAX_OUTSTANDING_REQUESTS)
|
|
ctrl_info->max_outstanding_requests =
|
|
PQI_MAX_OUTSTANDING_REQUESTS;
|
|
}
|
|
|
|
pqi_calculate_io_resources(ctrl_info);
|
|
|
|
rc = pqi_alloc_error_buffer(ctrl_info);
|
|
if (rc) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"failed to allocate PQI error buffer\n");
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
* If the function we are about to call succeeds, the
|
|
* controller will transition from legacy SIS mode
|
|
* into PQI mode.
|
|
*/
|
|
rc = sis_init_base_struct_addr(ctrl_info);
|
|
if (rc) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"error initializing PQI mode\n");
|
|
return rc;
|
|
}
|
|
|
|
/* Wait for the controller to complete the SIS -> PQI transition. */
|
|
rc = pqi_wait_for_pqi_mode_ready(ctrl_info);
|
|
if (rc) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"transition to PQI mode failed\n");
|
|
return rc;
|
|
}
|
|
|
|
/* From here on, we are running in PQI mode. */
|
|
ctrl_info->pqi_mode_enabled = true;
|
|
pqi_save_ctrl_mode(ctrl_info, PQI_MODE);
|
|
|
|
rc = pqi_process_config_table(ctrl_info);
|
|
if (rc)
|
|
return rc;
|
|
|
|
rc = pqi_alloc_admin_queues(ctrl_info);
|
|
if (rc) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"failed to allocate admin queues\n");
|
|
return rc;
|
|
}
|
|
|
|
rc = pqi_create_admin_queues(ctrl_info);
|
|
if (rc) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"error creating admin queues\n");
|
|
return rc;
|
|
}
|
|
|
|
rc = pqi_report_device_capability(ctrl_info);
|
|
if (rc) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"obtaining device capability failed\n");
|
|
return rc;
|
|
}
|
|
|
|
rc = pqi_validate_device_capability(ctrl_info);
|
|
if (rc)
|
|
return rc;
|
|
|
|
pqi_calculate_queue_resources(ctrl_info);
|
|
|
|
rc = pqi_enable_msix_interrupts(ctrl_info);
|
|
if (rc)
|
|
return rc;
|
|
|
|
if (ctrl_info->num_msix_vectors_enabled < ctrl_info->num_queue_groups) {
|
|
ctrl_info->max_msix_vectors =
|
|
ctrl_info->num_msix_vectors_enabled;
|
|
pqi_calculate_queue_resources(ctrl_info);
|
|
}
|
|
|
|
rc = pqi_alloc_io_resources(ctrl_info);
|
|
if (rc)
|
|
return rc;
|
|
|
|
rc = pqi_alloc_operational_queues(ctrl_info);
|
|
if (rc) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"failed to allocate operational queues\n");
|
|
return rc;
|
|
}
|
|
|
|
pqi_init_operational_queues(ctrl_info);
|
|
|
|
rc = pqi_request_irqs(ctrl_info);
|
|
if (rc)
|
|
return rc;
|
|
|
|
rc = pqi_create_queues(ctrl_info);
|
|
if (rc)
|
|
return rc;
|
|
|
|
pqi_change_irq_mode(ctrl_info, IRQ_MODE_MSIX);
|
|
|
|
ctrl_info->controller_online = true;
|
|
pqi_start_heartbeat_timer(ctrl_info);
|
|
|
|
rc = pqi_enable_events(ctrl_info);
|
|
if (rc) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"error enabling events\n");
|
|
return rc;
|
|
}
|
|
|
|
/* Register with the SCSI subsystem. */
|
|
rc = pqi_register_scsi(ctrl_info);
|
|
if (rc)
|
|
return rc;
|
|
|
|
rc = pqi_get_ctrl_firmware_version(ctrl_info);
|
|
if (rc) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"error obtaining firmware version\n");
|
|
return rc;
|
|
}
|
|
|
|
rc = pqi_write_driver_version_to_host_wellness(ctrl_info);
|
|
if (rc) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"error updating host wellness\n");
|
|
return rc;
|
|
}
|
|
|
|
pqi_schedule_update_time_worker(ctrl_info);
|
|
|
|
pqi_scan_scsi_devices(ctrl_info);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void pqi_reinit_queues(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
unsigned int i;
|
|
struct pqi_admin_queues *admin_queues;
|
|
struct pqi_event_queue *event_queue;
|
|
|
|
admin_queues = &ctrl_info->admin_queues;
|
|
admin_queues->iq_pi_copy = 0;
|
|
admin_queues->oq_ci_copy = 0;
|
|
*admin_queues->oq_pi = 0;
|
|
|
|
for (i = 0; i < ctrl_info->num_queue_groups; i++) {
|
|
ctrl_info->queue_groups[i].iq_pi_copy[RAID_PATH] = 0;
|
|
ctrl_info->queue_groups[i].iq_pi_copy[AIO_PATH] = 0;
|
|
ctrl_info->queue_groups[i].oq_ci_copy = 0;
|
|
|
|
*ctrl_info->queue_groups[i].iq_ci[RAID_PATH] = 0;
|
|
*ctrl_info->queue_groups[i].iq_ci[AIO_PATH] = 0;
|
|
*ctrl_info->queue_groups[i].oq_pi = 0;
|
|
}
|
|
|
|
event_queue = &ctrl_info->event_queue;
|
|
*event_queue->oq_pi = 0;
|
|
event_queue->oq_ci_copy = 0;
|
|
}
|
|
|
|
static int pqi_ctrl_init_resume(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
int rc;
|
|
|
|
rc = pqi_force_sis_mode(ctrl_info);
|
|
if (rc)
|
|
return rc;
|
|
|
|
/*
|
|
* Wait until the controller is ready to start accepting SIS
|
|
* commands.
|
|
*/
|
|
rc = sis_wait_for_ctrl_ready_resume(ctrl_info);
|
|
if (rc)
|
|
return rc;
|
|
|
|
/*
|
|
* If the function we are about to call succeeds, the
|
|
* controller will transition from legacy SIS mode
|
|
* into PQI mode.
|
|
*/
|
|
rc = sis_init_base_struct_addr(ctrl_info);
|
|
if (rc) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"error initializing PQI mode\n");
|
|
return rc;
|
|
}
|
|
|
|
/* Wait for the controller to complete the SIS -> PQI transition. */
|
|
rc = pqi_wait_for_pqi_mode_ready(ctrl_info);
|
|
if (rc) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"transition to PQI mode failed\n");
|
|
return rc;
|
|
}
|
|
|
|
/* From here on, we are running in PQI mode. */
|
|
ctrl_info->pqi_mode_enabled = true;
|
|
pqi_save_ctrl_mode(ctrl_info, PQI_MODE);
|
|
|
|
pqi_reinit_queues(ctrl_info);
|
|
|
|
rc = pqi_create_admin_queues(ctrl_info);
|
|
if (rc) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"error creating admin queues\n");
|
|
return rc;
|
|
}
|
|
|
|
rc = pqi_create_queues(ctrl_info);
|
|
if (rc)
|
|
return rc;
|
|
|
|
pqi_change_irq_mode(ctrl_info, IRQ_MODE_MSIX);
|
|
|
|
ctrl_info->controller_online = true;
|
|
pqi_start_heartbeat_timer(ctrl_info);
|
|
pqi_ctrl_unblock_requests(ctrl_info);
|
|
|
|
rc = pqi_enable_events(ctrl_info);
|
|
if (rc) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"error enabling events\n");
|
|
return rc;
|
|
}
|
|
|
|
rc = pqi_write_driver_version_to_host_wellness(ctrl_info);
|
|
if (rc) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"error updating host wellness\n");
|
|
return rc;
|
|
}
|
|
|
|
pqi_schedule_update_time_worker(ctrl_info);
|
|
|
|
pqi_scan_scsi_devices(ctrl_info);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline int pqi_set_pcie_completion_timeout(struct pci_dev *pci_dev,
|
|
u16 timeout)
|
|
{
|
|
return pcie_capability_clear_and_set_word(pci_dev, PCI_EXP_DEVCTL2,
|
|
PCI_EXP_DEVCTL2_COMP_TIMEOUT, timeout);
|
|
}
|
|
|
|
static int pqi_pci_init(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
int rc;
|
|
u64 mask;
|
|
|
|
rc = pci_enable_device(ctrl_info->pci_dev);
|
|
if (rc) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"failed to enable PCI device\n");
|
|
return rc;
|
|
}
|
|
|
|
if (sizeof(dma_addr_t) > 4)
|
|
mask = DMA_BIT_MASK(64);
|
|
else
|
|
mask = DMA_BIT_MASK(32);
|
|
|
|
rc = dma_set_mask(&ctrl_info->pci_dev->dev, mask);
|
|
if (rc) {
|
|
dev_err(&ctrl_info->pci_dev->dev, "failed to set DMA mask\n");
|
|
goto disable_device;
|
|
}
|
|
|
|
rc = pci_request_regions(ctrl_info->pci_dev, DRIVER_NAME_SHORT);
|
|
if (rc) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"failed to obtain PCI resources\n");
|
|
goto disable_device;
|
|
}
|
|
|
|
ctrl_info->iomem_base = ioremap_nocache(pci_resource_start(
|
|
ctrl_info->pci_dev, 0),
|
|
sizeof(struct pqi_ctrl_registers));
|
|
if (!ctrl_info->iomem_base) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"failed to map memory for controller registers\n");
|
|
rc = -ENOMEM;
|
|
goto release_regions;
|
|
}
|
|
|
|
#define PCI_EXP_COMP_TIMEOUT_65_TO_210_MS 0x6
|
|
|
|
/* Increase the PCIe completion timeout. */
|
|
rc = pqi_set_pcie_completion_timeout(ctrl_info->pci_dev,
|
|
PCI_EXP_COMP_TIMEOUT_65_TO_210_MS);
|
|
if (rc) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"failed to set PCIe completion timeout\n");
|
|
goto release_regions;
|
|
}
|
|
|
|
/* Enable bus mastering. */
|
|
pci_set_master(ctrl_info->pci_dev);
|
|
|
|
ctrl_info->registers = ctrl_info->iomem_base;
|
|
ctrl_info->pqi_registers = &ctrl_info->registers->pqi_registers;
|
|
|
|
pci_set_drvdata(ctrl_info->pci_dev, ctrl_info);
|
|
|
|
return 0;
|
|
|
|
release_regions:
|
|
pci_release_regions(ctrl_info->pci_dev);
|
|
disable_device:
|
|
pci_disable_device(ctrl_info->pci_dev);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void pqi_cleanup_pci_init(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
iounmap(ctrl_info->iomem_base);
|
|
pci_release_regions(ctrl_info->pci_dev);
|
|
if (pci_is_enabled(ctrl_info->pci_dev))
|
|
pci_disable_device(ctrl_info->pci_dev);
|
|
pci_set_drvdata(ctrl_info->pci_dev, NULL);
|
|
}
|
|
|
|
static struct pqi_ctrl_info *pqi_alloc_ctrl_info(int numa_node)
|
|
{
|
|
struct pqi_ctrl_info *ctrl_info;
|
|
|
|
ctrl_info = kzalloc_node(sizeof(struct pqi_ctrl_info),
|
|
GFP_KERNEL, numa_node);
|
|
if (!ctrl_info)
|
|
return NULL;
|
|
|
|
mutex_init(&ctrl_info->scan_mutex);
|
|
mutex_init(&ctrl_info->lun_reset_mutex);
|
|
|
|
INIT_LIST_HEAD(&ctrl_info->scsi_device_list);
|
|
spin_lock_init(&ctrl_info->scsi_device_list_lock);
|
|
|
|
INIT_WORK(&ctrl_info->event_work, pqi_event_worker);
|
|
atomic_set(&ctrl_info->num_interrupts, 0);
|
|
|
|
INIT_DELAYED_WORK(&ctrl_info->rescan_work, pqi_rescan_worker);
|
|
INIT_DELAYED_WORK(&ctrl_info->update_time_work, pqi_update_time_worker);
|
|
|
|
timer_setup(&ctrl_info->heartbeat_timer, pqi_heartbeat_timer_handler, 0);
|
|
INIT_WORK(&ctrl_info->ctrl_offline_work, pqi_ctrl_offline_worker);
|
|
|
|
sema_init(&ctrl_info->sync_request_sem,
|
|
PQI_RESERVED_IO_SLOTS_SYNCHRONOUS_REQUESTS);
|
|
init_waitqueue_head(&ctrl_info->block_requests_wait);
|
|
|
|
INIT_LIST_HEAD(&ctrl_info->raid_bypass_retry_list);
|
|
spin_lock_init(&ctrl_info->raid_bypass_retry_list_lock);
|
|
INIT_WORK(&ctrl_info->raid_bypass_retry_work,
|
|
pqi_raid_bypass_retry_worker);
|
|
|
|
ctrl_info->ctrl_id = atomic_inc_return(&pqi_controller_count) - 1;
|
|
ctrl_info->irq_mode = IRQ_MODE_NONE;
|
|
ctrl_info->max_msix_vectors = PQI_MAX_MSIX_VECTORS;
|
|
|
|
return ctrl_info;
|
|
}
|
|
|
|
static inline void pqi_free_ctrl_info(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
kfree(ctrl_info);
|
|
}
|
|
|
|
static void pqi_free_interrupts(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
pqi_free_irqs(ctrl_info);
|
|
pqi_disable_msix_interrupts(ctrl_info);
|
|
}
|
|
|
|
static void pqi_free_ctrl_resources(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
pqi_stop_heartbeat_timer(ctrl_info);
|
|
pqi_free_interrupts(ctrl_info);
|
|
if (ctrl_info->queue_memory_base)
|
|
dma_free_coherent(&ctrl_info->pci_dev->dev,
|
|
ctrl_info->queue_memory_length,
|
|
ctrl_info->queue_memory_base,
|
|
ctrl_info->queue_memory_base_dma_handle);
|
|
if (ctrl_info->admin_queue_memory_base)
|
|
dma_free_coherent(&ctrl_info->pci_dev->dev,
|
|
ctrl_info->admin_queue_memory_length,
|
|
ctrl_info->admin_queue_memory_base,
|
|
ctrl_info->admin_queue_memory_base_dma_handle);
|
|
pqi_free_all_io_requests(ctrl_info);
|
|
if (ctrl_info->error_buffer)
|
|
dma_free_coherent(&ctrl_info->pci_dev->dev,
|
|
ctrl_info->error_buffer_length,
|
|
ctrl_info->error_buffer,
|
|
ctrl_info->error_buffer_dma_handle);
|
|
if (ctrl_info->iomem_base)
|
|
pqi_cleanup_pci_init(ctrl_info);
|
|
pqi_free_ctrl_info(ctrl_info);
|
|
}
|
|
|
|
static void pqi_remove_ctrl(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
pqi_cancel_rescan_worker(ctrl_info);
|
|
pqi_cancel_update_time_worker(ctrl_info);
|
|
pqi_remove_all_scsi_devices(ctrl_info);
|
|
pqi_unregister_scsi(ctrl_info);
|
|
if (ctrl_info->pqi_mode_enabled)
|
|
pqi_revert_to_sis_mode(ctrl_info);
|
|
pqi_free_ctrl_resources(ctrl_info);
|
|
}
|
|
|
|
static void pqi_perform_lockup_action(void)
|
|
{
|
|
switch (pqi_lockup_action) {
|
|
case PANIC:
|
|
panic("FATAL: Smart Family Controller lockup detected");
|
|
break;
|
|
case REBOOT:
|
|
emergency_restart();
|
|
break;
|
|
case NONE:
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static struct pqi_raid_error_info pqi_ctrl_offline_raid_error_info = {
|
|
.data_out_result = PQI_DATA_IN_OUT_HARDWARE_ERROR,
|
|
.status = SAM_STAT_CHECK_CONDITION,
|
|
};
|
|
|
|
static void pqi_fail_all_outstanding_requests(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
unsigned int i;
|
|
struct pqi_io_request *io_request;
|
|
struct scsi_cmnd *scmd;
|
|
|
|
for (i = 0; i < ctrl_info->max_io_slots; i++) {
|
|
io_request = &ctrl_info->io_request_pool[i];
|
|
if (atomic_read(&io_request->refcount) == 0)
|
|
continue;
|
|
|
|
scmd = io_request->scmd;
|
|
if (scmd) {
|
|
set_host_byte(scmd, DID_NO_CONNECT);
|
|
} else {
|
|
io_request->status = -ENXIO;
|
|
io_request->error_info =
|
|
&pqi_ctrl_offline_raid_error_info;
|
|
}
|
|
|
|
io_request->io_complete_callback(io_request,
|
|
io_request->context);
|
|
}
|
|
}
|
|
|
|
static void pqi_take_ctrl_offline_deferred(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
pqi_perform_lockup_action();
|
|
pqi_stop_heartbeat_timer(ctrl_info);
|
|
pqi_free_interrupts(ctrl_info);
|
|
pqi_cancel_rescan_worker(ctrl_info);
|
|
pqi_cancel_update_time_worker(ctrl_info);
|
|
pqi_ctrl_wait_until_quiesced(ctrl_info);
|
|
pqi_fail_all_outstanding_requests(ctrl_info);
|
|
pqi_clear_all_queued_raid_bypass_retries(ctrl_info);
|
|
pqi_ctrl_unblock_requests(ctrl_info);
|
|
}
|
|
|
|
static void pqi_ctrl_offline_worker(struct work_struct *work)
|
|
{
|
|
struct pqi_ctrl_info *ctrl_info;
|
|
|
|
ctrl_info = container_of(work, struct pqi_ctrl_info, ctrl_offline_work);
|
|
pqi_take_ctrl_offline_deferred(ctrl_info);
|
|
}
|
|
|
|
static void pqi_take_ctrl_offline(struct pqi_ctrl_info *ctrl_info)
|
|
{
|
|
if (!ctrl_info->controller_online)
|
|
return;
|
|
|
|
ctrl_info->controller_online = false;
|
|
ctrl_info->pqi_mode_enabled = false;
|
|
pqi_ctrl_block_requests(ctrl_info);
|
|
if (!pqi_disable_ctrl_shutdown)
|
|
sis_shutdown_ctrl(ctrl_info);
|
|
pci_disable_device(ctrl_info->pci_dev);
|
|
dev_err(&ctrl_info->pci_dev->dev, "controller offline\n");
|
|
schedule_work(&ctrl_info->ctrl_offline_work);
|
|
}
|
|
|
|
static void pqi_print_ctrl_info(struct pci_dev *pci_dev,
|
|
const struct pci_device_id *id)
|
|
{
|
|
char *ctrl_description;
|
|
|
|
if (id->driver_data)
|
|
ctrl_description = (char *)id->driver_data;
|
|
else
|
|
ctrl_description = "Microsemi Smart Family Controller";
|
|
|
|
dev_info(&pci_dev->dev, "%s found\n", ctrl_description);
|
|
}
|
|
|
|
static int pqi_pci_probe(struct pci_dev *pci_dev,
|
|
const struct pci_device_id *id)
|
|
{
|
|
int rc;
|
|
int node;
|
|
struct pqi_ctrl_info *ctrl_info;
|
|
|
|
pqi_print_ctrl_info(pci_dev, id);
|
|
|
|
if (pqi_disable_device_id_wildcards &&
|
|
id->subvendor == PCI_ANY_ID &&
|
|
id->subdevice == PCI_ANY_ID) {
|
|
dev_warn(&pci_dev->dev,
|
|
"controller not probed because device ID wildcards are disabled\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
if (id->subvendor == PCI_ANY_ID || id->subdevice == PCI_ANY_ID)
|
|
dev_warn(&pci_dev->dev,
|
|
"controller device ID matched using wildcards\n");
|
|
|
|
node = dev_to_node(&pci_dev->dev);
|
|
if (node == NUMA_NO_NODE)
|
|
set_dev_node(&pci_dev->dev, 0);
|
|
|
|
ctrl_info = pqi_alloc_ctrl_info(node);
|
|
if (!ctrl_info) {
|
|
dev_err(&pci_dev->dev,
|
|
"failed to allocate controller info block\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
ctrl_info->pci_dev = pci_dev;
|
|
|
|
rc = pqi_pci_init(ctrl_info);
|
|
if (rc)
|
|
goto error;
|
|
|
|
rc = pqi_ctrl_init(ctrl_info);
|
|
if (rc)
|
|
goto error;
|
|
|
|
return 0;
|
|
|
|
error:
|
|
pqi_remove_ctrl(ctrl_info);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void pqi_pci_remove(struct pci_dev *pci_dev)
|
|
{
|
|
struct pqi_ctrl_info *ctrl_info;
|
|
|
|
ctrl_info = pci_get_drvdata(pci_dev);
|
|
if (!ctrl_info)
|
|
return;
|
|
|
|
pqi_remove_ctrl(ctrl_info);
|
|
}
|
|
|
|
static void pqi_shutdown(struct pci_dev *pci_dev)
|
|
{
|
|
int rc;
|
|
struct pqi_ctrl_info *ctrl_info;
|
|
|
|
ctrl_info = pci_get_drvdata(pci_dev);
|
|
if (!ctrl_info)
|
|
goto error;
|
|
|
|
/*
|
|
* Write all data in the controller's battery-backed cache to
|
|
* storage.
|
|
*/
|
|
rc = pqi_flush_cache(ctrl_info, SHUTDOWN);
|
|
pqi_reset(ctrl_info);
|
|
if (rc == 0)
|
|
return;
|
|
|
|
error:
|
|
dev_warn(&pci_dev->dev,
|
|
"unable to flush controller cache\n");
|
|
}
|
|
|
|
static void pqi_process_lockup_action_param(void)
|
|
{
|
|
unsigned int i;
|
|
|
|
if (!pqi_lockup_action_param)
|
|
return;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(pqi_lockup_actions); i++) {
|
|
if (strcmp(pqi_lockup_action_param,
|
|
pqi_lockup_actions[i].name) == 0) {
|
|
pqi_lockup_action = pqi_lockup_actions[i].action;
|
|
return;
|
|
}
|
|
}
|
|
|
|
pr_warn("%s: invalid lockup action setting \"%s\" - supported settings: none, reboot, panic\n",
|
|
DRIVER_NAME_SHORT, pqi_lockup_action_param);
|
|
}
|
|
|
|
static void pqi_process_module_params(void)
|
|
{
|
|
pqi_process_lockup_action_param();
|
|
}
|
|
|
|
static __maybe_unused int pqi_suspend(struct pci_dev *pci_dev, pm_message_t state)
|
|
{
|
|
struct pqi_ctrl_info *ctrl_info;
|
|
|
|
ctrl_info = pci_get_drvdata(pci_dev);
|
|
|
|
pqi_disable_events(ctrl_info);
|
|
pqi_cancel_update_time_worker(ctrl_info);
|
|
pqi_cancel_rescan_worker(ctrl_info);
|
|
pqi_wait_until_scan_finished(ctrl_info);
|
|
pqi_wait_until_lun_reset_finished(ctrl_info);
|
|
pqi_flush_cache(ctrl_info, SUSPEND);
|
|
pqi_ctrl_block_requests(ctrl_info);
|
|
pqi_ctrl_wait_until_quiesced(ctrl_info);
|
|
pqi_wait_until_inbound_queues_empty(ctrl_info);
|
|
pqi_ctrl_wait_for_pending_io(ctrl_info);
|
|
pqi_stop_heartbeat_timer(ctrl_info);
|
|
|
|
if (state.event == PM_EVENT_FREEZE)
|
|
return 0;
|
|
|
|
pci_save_state(pci_dev);
|
|
pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state));
|
|
|
|
ctrl_info->controller_online = false;
|
|
ctrl_info->pqi_mode_enabled = false;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static __maybe_unused int pqi_resume(struct pci_dev *pci_dev)
|
|
{
|
|
int rc;
|
|
struct pqi_ctrl_info *ctrl_info;
|
|
|
|
ctrl_info = pci_get_drvdata(pci_dev);
|
|
|
|
if (pci_dev->current_state != PCI_D0) {
|
|
ctrl_info->max_hw_queue_index = 0;
|
|
pqi_free_interrupts(ctrl_info);
|
|
pqi_change_irq_mode(ctrl_info, IRQ_MODE_INTX);
|
|
rc = request_irq(pci_irq_vector(pci_dev, 0), pqi_irq_handler,
|
|
IRQF_SHARED, DRIVER_NAME_SHORT,
|
|
&ctrl_info->queue_groups[0]);
|
|
if (rc) {
|
|
dev_err(&ctrl_info->pci_dev->dev,
|
|
"irq %u init failed with error %d\n",
|
|
pci_dev->irq, rc);
|
|
return rc;
|
|
}
|
|
pqi_start_heartbeat_timer(ctrl_info);
|
|
pqi_ctrl_unblock_requests(ctrl_info);
|
|
return 0;
|
|
}
|
|
|
|
pci_set_power_state(pci_dev, PCI_D0);
|
|
pci_restore_state(pci_dev);
|
|
|
|
return pqi_ctrl_init_resume(ctrl_info);
|
|
}
|
|
|
|
/* Define the PCI IDs for the controllers that we support. */
|
|
static const struct pci_device_id pqi_pci_id_table[] = {
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
0x105b, 0x1211)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
0x105b, 0x1321)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
0x152d, 0x8a22)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
0x152d, 0x8a23)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
0x152d, 0x8a24)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
0x152d, 0x8a36)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
0x152d, 0x8a37)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
0x193d, 0x8460)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
0x193d, 0x8461)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
0x193d, 0xf460)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
0x193d, 0xf461)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
0x1bd4, 0x0045)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
0x1bd4, 0x0046)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
0x1bd4, 0x0047)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
0x1bd4, 0x0048)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x0110)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x0608)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x0800)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x0801)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x0802)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x0803)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x0804)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x0805)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x0806)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x0807)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x0900)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x0901)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x0902)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x0903)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x0904)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x0905)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x0906)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x0907)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x0908)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x090a)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x1200)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x1201)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x1202)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x1280)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x1281)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x1282)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x1300)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x1301)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x1302)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x1303)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_ADAPTEC2, 0x1380)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_DELL, 0x1fe0)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_HP, 0x0600)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_HP, 0x0601)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_HP, 0x0602)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_HP, 0x0603)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_HP, 0x0609)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_HP, 0x0650)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_HP, 0x0651)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_HP, 0x0652)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_HP, 0x0653)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_HP, 0x0654)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_HP, 0x0655)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_HP, 0x0700)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_HP, 0x0701)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_HP, 0x1001)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_HP, 0x1100)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_VENDOR_ID_HP, 0x1101)
|
|
},
|
|
{
|
|
PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f,
|
|
PCI_ANY_ID, PCI_ANY_ID)
|
|
},
|
|
{ 0 }
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(pci, pqi_pci_id_table);
|
|
|
|
static struct pci_driver pqi_pci_driver = {
|
|
.name = DRIVER_NAME_SHORT,
|
|
.id_table = pqi_pci_id_table,
|
|
.probe = pqi_pci_probe,
|
|
.remove = pqi_pci_remove,
|
|
.shutdown = pqi_shutdown,
|
|
#if defined(CONFIG_PM)
|
|
.suspend = pqi_suspend,
|
|
.resume = pqi_resume,
|
|
#endif
|
|
};
|
|
|
|
static int __init pqi_init(void)
|
|
{
|
|
int rc;
|
|
|
|
pr_info(DRIVER_NAME "\n");
|
|
|
|
pqi_sas_transport_template =
|
|
sas_attach_transport(&pqi_sas_transport_functions);
|
|
if (!pqi_sas_transport_template)
|
|
return -ENODEV;
|
|
|
|
pqi_process_module_params();
|
|
|
|
rc = pci_register_driver(&pqi_pci_driver);
|
|
if (rc)
|
|
sas_release_transport(pqi_sas_transport_template);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void __exit pqi_cleanup(void)
|
|
{
|
|
pci_unregister_driver(&pqi_pci_driver);
|
|
sas_release_transport(pqi_sas_transport_template);
|
|
}
|
|
|
|
module_init(pqi_init);
|
|
module_exit(pqi_cleanup);
|
|
|
|
static void __attribute__((unused)) verify_structures(void)
|
|
{
|
|
BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
|
|
sis_host_to_ctrl_doorbell) != 0x20);
|
|
BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
|
|
sis_interrupt_mask) != 0x34);
|
|
BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
|
|
sis_ctrl_to_host_doorbell) != 0x9c);
|
|
BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
|
|
sis_ctrl_to_host_doorbell_clear) != 0xa0);
|
|
BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
|
|
sis_driver_scratch) != 0xb0);
|
|
BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
|
|
sis_firmware_status) != 0xbc);
|
|
BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
|
|
sis_mailbox) != 0x1000);
|
|
BUILD_BUG_ON(offsetof(struct pqi_ctrl_registers,
|
|
pqi_registers) != 0x4000);
|
|
|
|
BUILD_BUG_ON(offsetof(struct pqi_iu_header,
|
|
iu_type) != 0x0);
|
|
BUILD_BUG_ON(offsetof(struct pqi_iu_header,
|
|
iu_length) != 0x2);
|
|
BUILD_BUG_ON(offsetof(struct pqi_iu_header,
|
|
response_queue_id) != 0x4);
|
|
BUILD_BUG_ON(offsetof(struct pqi_iu_header,
|
|
work_area) != 0x6);
|
|
BUILD_BUG_ON(sizeof(struct pqi_iu_header) != 0x8);
|
|
|
|
BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
|
|
status) != 0x0);
|
|
BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
|
|
service_response) != 0x1);
|
|
BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
|
|
data_present) != 0x2);
|
|
BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
|
|
reserved) != 0x3);
|
|
BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
|
|
residual_count) != 0x4);
|
|
BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
|
|
data_length) != 0x8);
|
|
BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
|
|
reserved1) != 0xa);
|
|
BUILD_BUG_ON(offsetof(struct pqi_aio_error_info,
|
|
data) != 0xc);
|
|
BUILD_BUG_ON(sizeof(struct pqi_aio_error_info) != 0x10c);
|
|
|
|
BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
|
|
data_in_result) != 0x0);
|
|
BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
|
|
data_out_result) != 0x1);
|
|
BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
|
|
reserved) != 0x2);
|
|
BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
|
|
status) != 0x5);
|
|
BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
|
|
status_qualifier) != 0x6);
|
|
BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
|
|
sense_data_length) != 0x8);
|
|
BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
|
|
response_data_length) != 0xa);
|
|
BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
|
|
data_in_transferred) != 0xc);
|
|
BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
|
|
data_out_transferred) != 0x10);
|
|
BUILD_BUG_ON(offsetof(struct pqi_raid_error_info,
|
|
data) != 0x14);
|
|
BUILD_BUG_ON(sizeof(struct pqi_raid_error_info) != 0x114);
|
|
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_registers,
|
|
signature) != 0x0);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_registers,
|
|
function_and_status_code) != 0x8);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_registers,
|
|
max_admin_iq_elements) != 0x10);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_registers,
|
|
max_admin_oq_elements) != 0x11);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_registers,
|
|
admin_iq_element_length) != 0x12);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_registers,
|
|
admin_oq_element_length) != 0x13);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_registers,
|
|
max_reset_timeout) != 0x14);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_registers,
|
|
legacy_intx_status) != 0x18);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_registers,
|
|
legacy_intx_mask_set) != 0x1c);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_registers,
|
|
legacy_intx_mask_clear) != 0x20);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_registers,
|
|
device_status) != 0x40);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_registers,
|
|
admin_iq_pi_offset) != 0x48);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_registers,
|
|
admin_oq_ci_offset) != 0x50);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_registers,
|
|
admin_iq_element_array_addr) != 0x58);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_registers,
|
|
admin_oq_element_array_addr) != 0x60);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_registers,
|
|
admin_iq_ci_addr) != 0x68);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_registers,
|
|
admin_oq_pi_addr) != 0x70);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_registers,
|
|
admin_iq_num_elements) != 0x78);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_registers,
|
|
admin_oq_num_elements) != 0x79);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_registers,
|
|
admin_queue_int_msg_num) != 0x7a);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_registers,
|
|
device_error) != 0x80);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_registers,
|
|
error_details) != 0x88);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_registers,
|
|
device_reset) != 0x90);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_registers,
|
|
power_action) != 0x94);
|
|
BUILD_BUG_ON(sizeof(struct pqi_device_registers) != 0x100);
|
|
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
|
|
header.iu_type) != 0);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
|
|
header.iu_length) != 2);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
|
|
header.work_area) != 6);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
|
|
request_id) != 8);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
|
|
function_code) != 10);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
|
|
data.report_device_capability.buffer_length) != 44);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
|
|
data.report_device_capability.sg_descriptor) != 48);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
|
|
data.create_operational_iq.queue_id) != 12);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
|
|
data.create_operational_iq.element_array_addr) != 16);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
|
|
data.create_operational_iq.ci_addr) != 24);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
|
|
data.create_operational_iq.num_elements) != 32);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
|
|
data.create_operational_iq.element_length) != 34);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
|
|
data.create_operational_iq.queue_protocol) != 36);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
|
|
data.create_operational_oq.queue_id) != 12);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
|
|
data.create_operational_oq.element_array_addr) != 16);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
|
|
data.create_operational_oq.pi_addr) != 24);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
|
|
data.create_operational_oq.num_elements) != 32);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
|
|
data.create_operational_oq.element_length) != 34);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
|
|
data.create_operational_oq.queue_protocol) != 36);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
|
|
data.create_operational_oq.int_msg_num) != 40);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
|
|
data.create_operational_oq.coalescing_count) != 42);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
|
|
data.create_operational_oq.min_coalescing_time) != 44);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
|
|
data.create_operational_oq.max_coalescing_time) != 48);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_request,
|
|
data.delete_operational_queue.queue_id) != 12);
|
|
BUILD_BUG_ON(sizeof(struct pqi_general_admin_request) != 64);
|
|
BUILD_BUG_ON(FIELD_SIZEOF(struct pqi_general_admin_request,
|
|
data.create_operational_iq) != 64 - 11);
|
|
BUILD_BUG_ON(FIELD_SIZEOF(struct pqi_general_admin_request,
|
|
data.create_operational_oq) != 64 - 11);
|
|
BUILD_BUG_ON(FIELD_SIZEOF(struct pqi_general_admin_request,
|
|
data.delete_operational_queue) != 64 - 11);
|
|
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
|
|
header.iu_type) != 0);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
|
|
header.iu_length) != 2);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
|
|
header.work_area) != 6);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
|
|
request_id) != 8);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
|
|
function_code) != 10);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
|
|
status) != 11);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
|
|
data.create_operational_iq.status_descriptor) != 12);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
|
|
data.create_operational_iq.iq_pi_offset) != 16);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
|
|
data.create_operational_oq.status_descriptor) != 12);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_admin_response,
|
|
data.create_operational_oq.oq_ci_offset) != 16);
|
|
BUILD_BUG_ON(sizeof(struct pqi_general_admin_response) != 64);
|
|
|
|
BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
|
|
header.iu_type) != 0);
|
|
BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
|
|
header.iu_length) != 2);
|
|
BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
|
|
header.response_queue_id) != 4);
|
|
BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
|
|
header.work_area) != 6);
|
|
BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
|
|
request_id) != 8);
|
|
BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
|
|
nexus_id) != 10);
|
|
BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
|
|
buffer_length) != 12);
|
|
BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
|
|
lun_number) != 16);
|
|
BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
|
|
protocol_specific) != 24);
|
|
BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
|
|
error_index) != 27);
|
|
BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
|
|
cdb) != 32);
|
|
BUILD_BUG_ON(offsetof(struct pqi_raid_path_request,
|
|
sg_descriptors) != 64);
|
|
BUILD_BUG_ON(sizeof(struct pqi_raid_path_request) !=
|
|
PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
|
|
|
|
BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
|
|
header.iu_type) != 0);
|
|
BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
|
|
header.iu_length) != 2);
|
|
BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
|
|
header.response_queue_id) != 4);
|
|
BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
|
|
header.work_area) != 6);
|
|
BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
|
|
request_id) != 8);
|
|
BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
|
|
nexus_id) != 12);
|
|
BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
|
|
buffer_length) != 16);
|
|
BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
|
|
data_encryption_key_index) != 22);
|
|
BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
|
|
encrypt_tweak_lower) != 24);
|
|
BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
|
|
encrypt_tweak_upper) != 28);
|
|
BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
|
|
cdb) != 32);
|
|
BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
|
|
error_index) != 48);
|
|
BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
|
|
num_sg_descriptors) != 50);
|
|
BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
|
|
cdb_length) != 51);
|
|
BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
|
|
lun_number) != 52);
|
|
BUILD_BUG_ON(offsetof(struct pqi_aio_path_request,
|
|
sg_descriptors) != 64);
|
|
BUILD_BUG_ON(sizeof(struct pqi_aio_path_request) !=
|
|
PQI_OPERATIONAL_IQ_ELEMENT_LENGTH);
|
|
|
|
BUILD_BUG_ON(offsetof(struct pqi_io_response,
|
|
header.iu_type) != 0);
|
|
BUILD_BUG_ON(offsetof(struct pqi_io_response,
|
|
header.iu_length) != 2);
|
|
BUILD_BUG_ON(offsetof(struct pqi_io_response,
|
|
request_id) != 8);
|
|
BUILD_BUG_ON(offsetof(struct pqi_io_response,
|
|
error_index) != 10);
|
|
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
|
|
header.iu_type) != 0);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
|
|
header.iu_length) != 2);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
|
|
header.response_queue_id) != 4);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
|
|
request_id) != 8);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
|
|
data.report_event_configuration.buffer_length) != 12);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
|
|
data.report_event_configuration.sg_descriptors) != 16);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
|
|
data.set_event_configuration.global_event_oq_id) != 10);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
|
|
data.set_event_configuration.buffer_length) != 12);
|
|
BUILD_BUG_ON(offsetof(struct pqi_general_management_request,
|
|
data.set_event_configuration.sg_descriptors) != 16);
|
|
|
|
BUILD_BUG_ON(offsetof(struct pqi_iu_layer_descriptor,
|
|
max_inbound_iu_length) != 6);
|
|
BUILD_BUG_ON(offsetof(struct pqi_iu_layer_descriptor,
|
|
max_outbound_iu_length) != 14);
|
|
BUILD_BUG_ON(sizeof(struct pqi_iu_layer_descriptor) != 16);
|
|
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_capability,
|
|
data_length) != 0);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_capability,
|
|
iq_arbitration_priority_support_bitmask) != 8);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_capability,
|
|
maximum_aw_a) != 9);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_capability,
|
|
maximum_aw_b) != 10);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_capability,
|
|
maximum_aw_c) != 11);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_capability,
|
|
max_inbound_queues) != 16);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_capability,
|
|
max_elements_per_iq) != 18);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_capability,
|
|
max_iq_element_length) != 24);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_capability,
|
|
min_iq_element_length) != 26);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_capability,
|
|
max_outbound_queues) != 30);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_capability,
|
|
max_elements_per_oq) != 32);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_capability,
|
|
intr_coalescing_time_granularity) != 34);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_capability,
|
|
max_oq_element_length) != 36);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_capability,
|
|
min_oq_element_length) != 38);
|
|
BUILD_BUG_ON(offsetof(struct pqi_device_capability,
|
|
iu_layer_descriptors) != 64);
|
|
BUILD_BUG_ON(sizeof(struct pqi_device_capability) != 576);
|
|
|
|
BUILD_BUG_ON(offsetof(struct pqi_event_descriptor,
|
|
event_type) != 0);
|
|
BUILD_BUG_ON(offsetof(struct pqi_event_descriptor,
|
|
oq_id) != 2);
|
|
BUILD_BUG_ON(sizeof(struct pqi_event_descriptor) != 4);
|
|
|
|
BUILD_BUG_ON(offsetof(struct pqi_event_config,
|
|
num_event_descriptors) != 2);
|
|
BUILD_BUG_ON(offsetof(struct pqi_event_config,
|
|
descriptors) != 4);
|
|
|
|
BUILD_BUG_ON(PQI_NUM_SUPPORTED_EVENTS !=
|
|
ARRAY_SIZE(pqi_supported_event_types));
|
|
|
|
BUILD_BUG_ON(offsetof(struct pqi_event_response,
|
|
header.iu_type) != 0);
|
|
BUILD_BUG_ON(offsetof(struct pqi_event_response,
|
|
header.iu_length) != 2);
|
|
BUILD_BUG_ON(offsetof(struct pqi_event_response,
|
|
event_type) != 8);
|
|
BUILD_BUG_ON(offsetof(struct pqi_event_response,
|
|
event_id) != 10);
|
|
BUILD_BUG_ON(offsetof(struct pqi_event_response,
|
|
additional_event_id) != 12);
|
|
BUILD_BUG_ON(offsetof(struct pqi_event_response,
|
|
data) != 16);
|
|
BUILD_BUG_ON(sizeof(struct pqi_event_response) != 32);
|
|
|
|
BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request,
|
|
header.iu_type) != 0);
|
|
BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request,
|
|
header.iu_length) != 2);
|
|
BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request,
|
|
event_type) != 8);
|
|
BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request,
|
|
event_id) != 10);
|
|
BUILD_BUG_ON(offsetof(struct pqi_event_acknowledge_request,
|
|
additional_event_id) != 12);
|
|
BUILD_BUG_ON(sizeof(struct pqi_event_acknowledge_request) != 16);
|
|
|
|
BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
|
|
header.iu_type) != 0);
|
|
BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
|
|
header.iu_length) != 2);
|
|
BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
|
|
request_id) != 8);
|
|
BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
|
|
nexus_id) != 10);
|
|
BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
|
|
lun_number) != 16);
|
|
BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
|
|
protocol_specific) != 24);
|
|
BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
|
|
outbound_queue_id_to_manage) != 26);
|
|
BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
|
|
request_id_to_manage) != 28);
|
|
BUILD_BUG_ON(offsetof(struct pqi_task_management_request,
|
|
task_management_function) != 30);
|
|
BUILD_BUG_ON(sizeof(struct pqi_task_management_request) != 32);
|
|
|
|
BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
|
|
header.iu_type) != 0);
|
|
BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
|
|
header.iu_length) != 2);
|
|
BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
|
|
request_id) != 8);
|
|
BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
|
|
nexus_id) != 10);
|
|
BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
|
|
additional_response_info) != 12);
|
|
BUILD_BUG_ON(offsetof(struct pqi_task_management_response,
|
|
response_code) != 15);
|
|
BUILD_BUG_ON(sizeof(struct pqi_task_management_response) != 16);
|
|
|
|
BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
|
|
configured_logical_drive_count) != 0);
|
|
BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
|
|
configuration_signature) != 1);
|
|
BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
|
|
firmware_version) != 5);
|
|
BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
|
|
extended_logical_unit_count) != 154);
|
|
BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
|
|
firmware_build_number) != 190);
|
|
BUILD_BUG_ON(offsetof(struct bmic_identify_controller,
|
|
controller_mode) != 292);
|
|
|
|
BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
|
|
phys_bay_in_box) != 115);
|
|
BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
|
|
device_type) != 120);
|
|
BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
|
|
redundant_path_present_map) != 1736);
|
|
BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
|
|
active_path_number) != 1738);
|
|
BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
|
|
alternate_paths_phys_connector) != 1739);
|
|
BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
|
|
alternate_paths_phys_box_on_port) != 1755);
|
|
BUILD_BUG_ON(offsetof(struct bmic_identify_physical_device,
|
|
current_queue_depth_limit) != 1796);
|
|
BUILD_BUG_ON(sizeof(struct bmic_identify_physical_device) != 2560);
|
|
|
|
BUILD_BUG_ON(PQI_ADMIN_IQ_NUM_ELEMENTS > 255);
|
|
BUILD_BUG_ON(PQI_ADMIN_OQ_NUM_ELEMENTS > 255);
|
|
BUILD_BUG_ON(PQI_ADMIN_IQ_ELEMENT_LENGTH %
|
|
PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0);
|
|
BUILD_BUG_ON(PQI_ADMIN_OQ_ELEMENT_LENGTH %
|
|
PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0);
|
|
BUILD_BUG_ON(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH > 1048560);
|
|
BUILD_BUG_ON(PQI_OPERATIONAL_IQ_ELEMENT_LENGTH %
|
|
PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0);
|
|
BUILD_BUG_ON(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH > 1048560);
|
|
BUILD_BUG_ON(PQI_OPERATIONAL_OQ_ELEMENT_LENGTH %
|
|
PQI_QUEUE_ELEMENT_LENGTH_ALIGNMENT != 0);
|
|
|
|
BUILD_BUG_ON(PQI_RESERVED_IO_SLOTS >= PQI_MAX_OUTSTANDING_REQUESTS);
|
|
BUILD_BUG_ON(PQI_RESERVED_IO_SLOTS >=
|
|
PQI_MAX_OUTSTANDING_REQUESTS_KDUMP);
|
|
}
|