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freebsd-skq/sys/dev/mps/mps_mapping.c
Kenneth D. Merry 9b91b192fb Merge in phase 14+ -> 16 mps driver fixes from LSI: 
---------------------------------------------------------------
System panics during a Port reset with ouststanding I/O
---------------------------------------------------------------
It is possible to call mps_mapping_free_memory after this
memory is already freed, causing a panic. Removed this extra
call to mps_mappiing_free_memory and call mps_mapping_exit
in place of the mps_mapping_free_memory call so that any
outstanding mapping items can be flushed before memory is
freed.

---------------------------------------------------------------
Correct memory leak during a Port reset with ouststanding I/O
---------------------------------------------------------------
In mps_reinit function, the mapping memory was not being
freed before being re-allocated. Added line to call the
memory free function for mapping memory.

---------------------------------------------------------------
Use CAM_SIM_QUEUED flag in Driver IO path.
---------------------------------------------------------------
This flag informs the XPT that successful abort of a CCB
requires an abort ccb to be issued to the SIM.  While
processing SCSI IO's, set the CAM_SIM_QUEUED flag in the
status for the IO. When the command completes, clear this
flag.

---------------------------------------------------------------
Check for CAM_REQ_INPROG in I/O path.
---------------------------------------------------------------
Added a check in mpssas_action_scsiio for the In Progress
status for the IO. If this flag is set, the IO has already
been aborted by the upper layer (before CAM_SIM_QUEUED was
set) and there is no need to send the IO. The request will
be completed without error.

---------------------------------------------------------------
Improve "doorbell handshake method" for mps_get_iocfacts
---------------------------------------------------------------
Removed call to get Port Facts since this information is
not used currently.

Added mps_iocfacts_allocate function to allocate memory
that is based on IOC Facts data.  Added mps_iocfacts_free
function to free memory that is based on IOC Facts data.
Both of the functions are used when a Diag Reset is performed
or when the driver is attached/detached. This is needed in
case IOC Facts changes after a Diag Reset, which could
happen if FW is upgraded.

Moved call of mps_bases_static_config_pages from the attach
routine to after the IOC is ready to process accesses based
on the new memory allocations (instead of polling through
the Doorbell).

---------------------------------------------------------------
Set TimeStamp in INIT message in millisecond format Set the IOC
---------------------------------------------------------------

---------------------------------------------------------------
Prefer mps_wait_command to mps_request_polled
---------------------------------------------------------------
Instead of using mps_request_polled, call mps_wait_command
whenever possible. Change the mps_wait_command function to
check the current context and either use interrupt context
or poll if required by using the pause or DELAY function.
Added a check after waiting 50mSecs to see if the command
has timed out. This is only done if polliing, the msleep
command will automatically timeout if the command has taken
too long to complete.

---------------------------------------------------------------
Integrated RAID: Volume Activation Failed error message is
displayed though the volume has been activated.
---------------------------------------------------------------
Instead of failing an IOCTL request that does not have a
large enough buffer to hold the complete reply, copy as
much data from the reply as possible into the user's buffer
and log a message saying that the user's buffer was smaller
than the returned data.

---------------------------------------------------------------
mapping_add_new_device failure due to persistent table FULL
---------------------------------------------------------------
When a new device is added, if it is determined that the
device persistent table is being used and is full, instead
of displaying a message for this condition every time, only
log a message if the MPS_INFO bit is set in the debug_flags.

Submitted by:	LSI
MFC after:	1 week
2013-07-22 18:41:53 +00:00

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/*-
* Copyright (c) 2011, 2012 LSI Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* LSI MPT-Fusion Host Adapter FreeBSD
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/* TODO Move headers to mpsvar */
#include <sys/types.h>
#include <sys/param.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/kthread.h>
#include <sys/taskqueue.h>
#include <sys/bus.h>
#include <sys/endian.h>
#include <sys/sysctl.h>
#include <sys/eventhandler.h>
#include <sys/uio.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <dev/mps/mpi/mpi2_type.h>
#include <dev/mps/mpi/mpi2.h>
#include <dev/mps/mpi/mpi2_ioc.h>
#include <dev/mps/mpi/mpi2_sas.h>
#include <dev/mps/mpi/mpi2_cnfg.h>
#include <dev/mps/mpi/mpi2_init.h>
#include <dev/mps/mpi/mpi2_tool.h>
#include <dev/mps/mps_ioctl.h>
#include <dev/mps/mpsvar.h>
#include <dev/mps/mps_mapping.h>
/**
* _mapping_clear_entry - Clear a particular mapping entry.
* @map_entry: map table entry
*
* Returns nothing.
*/
static inline void
_mapping_clear_map_entry(struct dev_mapping_table *map_entry)
{
map_entry->physical_id = 0;
map_entry->device_info = 0;
map_entry->phy_bits = 0;
map_entry->dpm_entry_num = MPS_DPM_BAD_IDX;
map_entry->dev_handle = 0;
map_entry->channel = -1;
map_entry->id = -1;
map_entry->missing_count = 0;
map_entry->init_complete = 0;
map_entry->TLR_bits = (u8)MPI2_SCSIIO_CONTROL_NO_TLR;
}
/**
* _mapping_clear_enc_entry - Clear a particular enclosure table entry.
* @enc_entry: enclosure table entry
*
* Returns nothing.
*/
static inline void
_mapping_clear_enc_entry(struct enc_mapping_table *enc_entry)
{
enc_entry->enclosure_id = 0;
enc_entry->start_index = MPS_MAPTABLE_BAD_IDX;
enc_entry->phy_bits = 0;
enc_entry->dpm_entry_num = MPS_DPM_BAD_IDX;
enc_entry->enc_handle = 0;
enc_entry->num_slots = 0;
enc_entry->start_slot = 0;
enc_entry->missing_count = 0;
enc_entry->removal_flag = 0;
enc_entry->skip_search = 0;
enc_entry->init_complete = 0;
}
/**
* _mapping_commit_enc_entry - write a particular enc entry in DPM page0.
* @sc: per adapter object
* @enc_entry: enclosure table entry
*
* Returns 0 for success, non-zero for failure.
*/
static int
_mapping_commit_enc_entry(struct mps_softc *sc,
struct enc_mapping_table *et_entry)
{
Mpi2DriverMap0Entry_t *dpm_entry;
struct dev_mapping_table *mt_entry;
Mpi2ConfigReply_t mpi_reply;
Mpi2DriverMappingPage0_t config_page;
if (!sc->is_dpm_enable)
return 0;
memset(&config_page, 0, sizeof(Mpi2DriverMappingPage0_t));
memcpy(&config_page.Header, (u8 *) sc->dpm_pg0,
sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER));
dpm_entry = (Mpi2DriverMap0Entry_t *)((u8 *)sc->dpm_pg0 +
sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER));
dpm_entry += et_entry->dpm_entry_num;
dpm_entry->PhysicalIdentifier.Low =
( 0xFFFFFFFF & et_entry->enclosure_id);
dpm_entry->PhysicalIdentifier.High =
( et_entry->enclosure_id >> 32);
mt_entry = &sc->mapping_table[et_entry->start_index];
dpm_entry->DeviceIndex = htole16(mt_entry->id);
dpm_entry->MappingInformation = et_entry->num_slots;
dpm_entry->MappingInformation <<= MPI2_DRVMAP0_MAPINFO_SLOT_SHIFT;
dpm_entry->MappingInformation |= et_entry->missing_count;
dpm_entry->MappingInformation = htole16(dpm_entry->MappingInformation);
dpm_entry->PhysicalBitsMapping = htole32(et_entry->phy_bits);
dpm_entry->Reserved1 = 0;
memcpy(&config_page.Entry, (u8 *)dpm_entry,
sizeof(Mpi2DriverMap0Entry_t));
if (mps_config_set_dpm_pg0(sc, &mpi_reply, &config_page,
et_entry->dpm_entry_num)) {
printf("%s: write of dpm entry %d for enclosure failed\n",
__func__, et_entry->dpm_entry_num);
dpm_entry->MappingInformation = le16toh(dpm_entry->
MappingInformation);
dpm_entry->DeviceIndex = le16toh(dpm_entry->DeviceIndex);
dpm_entry->PhysicalBitsMapping =
le32toh(dpm_entry->PhysicalBitsMapping);
return -1;
}
dpm_entry->MappingInformation = le16toh(dpm_entry->
MappingInformation);
dpm_entry->DeviceIndex = le16toh(dpm_entry->DeviceIndex);
dpm_entry->PhysicalBitsMapping =
le32toh(dpm_entry->PhysicalBitsMapping);
return 0;
}
/**
* _mapping_commit_map_entry - write a particular map table entry in DPM page0.
* @sc: per adapter object
* @enc_entry: enclosure table entry
*
* Returns 0 for success, non-zero for failure.
*/
static int
_mapping_commit_map_entry(struct mps_softc *sc,
struct dev_mapping_table *mt_entry)
{
Mpi2DriverMap0Entry_t *dpm_entry;
Mpi2ConfigReply_t mpi_reply;
Mpi2DriverMappingPage0_t config_page;
if (!sc->is_dpm_enable)
return 0;
memset(&config_page, 0, sizeof(Mpi2DriverMappingPage0_t));
memcpy(&config_page.Header, (u8 *)sc->dpm_pg0,
sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER));
dpm_entry = (Mpi2DriverMap0Entry_t *)((u8 *) sc->dpm_pg0 +
sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER));
dpm_entry = dpm_entry + mt_entry->dpm_entry_num;
dpm_entry->PhysicalIdentifier.Low = (0xFFFFFFFF &
mt_entry->physical_id);
dpm_entry->PhysicalIdentifier.High = (mt_entry->physical_id >> 32);
dpm_entry->DeviceIndex = htole16(mt_entry->id);
dpm_entry->MappingInformation = htole16(mt_entry->missing_count);
dpm_entry->PhysicalBitsMapping = 0;
dpm_entry->Reserved1 = 0;
dpm_entry->MappingInformation = htole16(dpm_entry->MappingInformation);
memcpy(&config_page.Entry, (u8 *)dpm_entry,
sizeof(Mpi2DriverMap0Entry_t));
if (mps_config_set_dpm_pg0(sc, &mpi_reply, &config_page,
mt_entry->dpm_entry_num)) {
printf("%s: write of dpm entry %d for device failed\n",
__func__, mt_entry->dpm_entry_num);
dpm_entry->MappingInformation = le16toh(dpm_entry->
MappingInformation);
dpm_entry->DeviceIndex = le16toh(dpm_entry->DeviceIndex);
return -1;
}
dpm_entry->MappingInformation = le16toh(dpm_entry->MappingInformation);
dpm_entry->DeviceIndex = le16toh(dpm_entry->DeviceIndex);
return 0;
}
/**
* _mapping_get_ir_maprange - get start and end index for IR map range.
* @sc: per adapter object
* @start_idx: place holder for start index
* @end_idx: place holder for end index
*
* The IR volumes can be mapped either at start or end of the mapping table
* this function gets the detail of where IR volume mapping starts and ends
* in the device mapping table
*
* Returns nothing.
*/
static void
_mapping_get_ir_maprange(struct mps_softc *sc, u32 *start_idx, u32 *end_idx)
{
u16 volume_mapping_flags;
u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
volume_mapping_flags = le16toh(sc->ioc_pg8.IRVolumeMappingFlags) &
MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
if (volume_mapping_flags == MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING) {
*start_idx = 0;
if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_RESERVED_TARGETID_0)
*start_idx = 1;
} else
*start_idx = sc->max_devices - sc->max_volumes;
*end_idx = *start_idx + sc->max_volumes - 1;
}
/**
* _mapping_get_enc_idx_from_id - get enclosure index from enclosure ID
* @sc: per adapter object
* @enc_id: enclosure logical identifier
*
* Returns the index of enclosure entry on success or bad index.
*/
static u8
_mapping_get_enc_idx_from_id(struct mps_softc *sc, u64 enc_id,
u64 phy_bits)
{
struct enc_mapping_table *et_entry;
u8 enc_idx = 0;
for (enc_idx = 0; enc_idx < sc->num_enc_table_entries; enc_idx++) {
et_entry = &sc->enclosure_table[enc_idx];
if ((et_entry->enclosure_id == le64toh(enc_id)) &&
(!et_entry->phy_bits || (et_entry->phy_bits &
le32toh(phy_bits))))
return enc_idx;
}
return MPS_ENCTABLE_BAD_IDX;
}
/**
* _mapping_get_enc_idx_from_handle - get enclosure index from handle
* @sc: per adapter object
* @enc_id: enclosure handle
*
* Returns the index of enclosure entry on success or bad index.
*/
static u8
_mapping_get_enc_idx_from_handle(struct mps_softc *sc, u16 handle)
{
struct enc_mapping_table *et_entry;
u8 enc_idx = 0;
for (enc_idx = 0; enc_idx < sc->num_enc_table_entries; enc_idx++) {
et_entry = &sc->enclosure_table[enc_idx];
if (et_entry->missing_count)
continue;
if (et_entry->enc_handle == handle)
return enc_idx;
}
return MPS_ENCTABLE_BAD_IDX;
}
/**
* _mapping_get_high_missing_et_idx - get missing enclosure index
* @sc: per adapter object
*
* Search through the enclosure table and identifies the enclosure entry
* with high missing count and returns it's index
*
* Returns the index of enclosure entry on success or bad index.
*/
static u8
_mapping_get_high_missing_et_idx(struct mps_softc *sc)
{
struct enc_mapping_table *et_entry;
u8 high_missing_count = 0;
u8 enc_idx, high_idx = MPS_ENCTABLE_BAD_IDX;
for (enc_idx = 0; enc_idx < sc->num_enc_table_entries; enc_idx++) {
et_entry = &sc->enclosure_table[enc_idx];
if ((et_entry->missing_count > high_missing_count) &&
!et_entry->skip_search) {
high_missing_count = et_entry->missing_count;
high_idx = enc_idx;
}
}
return high_idx;
}
/**
* _mapping_get_high_missing_mt_idx - get missing map table index
* @sc: per adapter object
*
* Search through the map table and identifies the device entry
* with high missing count and returns it's index
*
* Returns the index of map table entry on success or bad index.
*/
static u32
_mapping_get_high_missing_mt_idx(struct mps_softc *sc)
{
u32 map_idx, high_idx = MPS_ENCTABLE_BAD_IDX;
u8 high_missing_count = 0;
u32 start_idx, end_idx, start_idx_ir, end_idx_ir;
struct dev_mapping_table *mt_entry;
u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
start_idx = 0;
start_idx_ir = 0;
end_idx_ir = 0;
end_idx = sc->max_devices;
if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_RESERVED_TARGETID_0)
start_idx = 1;
if (sc->ir_firmware)
_mapping_get_ir_maprange(sc, &start_idx_ir, &end_idx_ir);
if (start_idx == start_idx_ir)
start_idx = end_idx_ir + 1;
else
end_idx = start_idx_ir;
mt_entry = &sc->mapping_table[start_idx];
for (map_idx = start_idx; map_idx < end_idx; map_idx++, mt_entry++) {
if (mt_entry->missing_count > high_missing_count) {
high_missing_count = mt_entry->missing_count;
high_idx = map_idx;
}
}
return high_idx;
}
/**
* _mapping_get_ir_mt_idx_from_wwid - get map table index from volume WWID
* @sc: per adapter object
* @wwid: world wide unique ID of the volume
*
* Returns the index of map table entry on success or bad index.
*/
static u32
_mapping_get_ir_mt_idx_from_wwid(struct mps_softc *sc, u64 wwid)
{
u32 start_idx, end_idx, map_idx;
struct dev_mapping_table *mt_entry;
_mapping_get_ir_maprange(sc, &start_idx, &end_idx);
mt_entry = &sc->mapping_table[start_idx];
for (map_idx = start_idx; map_idx <= end_idx; map_idx++, mt_entry++)
if (mt_entry->physical_id == wwid)
return map_idx;
return MPS_MAPTABLE_BAD_IDX;
}
/**
* _mapping_get_mt_idx_from_id - get map table index from a device ID
* @sc: per adapter object
* @dev_id: device identifer (SAS Address)
*
* Returns the index of map table entry on success or bad index.
*/
static u32
_mapping_get_mt_idx_from_id(struct mps_softc *sc, u64 dev_id)
{
u32 map_idx;
struct dev_mapping_table *mt_entry;
for (map_idx = 0; map_idx < sc->max_devices; map_idx++) {
mt_entry = &sc->mapping_table[map_idx];
if (mt_entry->physical_id == dev_id)
return map_idx;
}
return MPS_MAPTABLE_BAD_IDX;
}
/**
* _mapping_get_ir_mt_idx_from_handle - get map table index from volume handle
* @sc: per adapter object
* @wwid: volume device handle
*
* Returns the index of map table entry on success or bad index.
*/
static u32
_mapping_get_ir_mt_idx_from_handle(struct mps_softc *sc, u16 volHandle)
{
u32 start_idx, end_idx, map_idx;
struct dev_mapping_table *mt_entry;
_mapping_get_ir_maprange(sc, &start_idx, &end_idx);
mt_entry = &sc->mapping_table[start_idx];
for (map_idx = start_idx; map_idx <= end_idx; map_idx++, mt_entry++)
if (mt_entry->dev_handle == volHandle)
return map_idx;
return MPS_MAPTABLE_BAD_IDX;
}
/**
* _mapping_get_mt_idx_from_handle - get map table index from handle
* @sc: per adapter object
* @dev_id: device handle
*
* Returns the index of map table entry on success or bad index.
*/
static u32
_mapping_get_mt_idx_from_handle(struct mps_softc *sc, u16 handle)
{
u32 map_idx;
struct dev_mapping_table *mt_entry;
for (map_idx = 0; map_idx < sc->max_devices; map_idx++) {
mt_entry = &sc->mapping_table[map_idx];
if (mt_entry->dev_handle == handle)
return map_idx;
}
return MPS_MAPTABLE_BAD_IDX;
}
/**
* _mapping_get_free_ir_mt_idx - get first free index for a volume
* @sc: per adapter object
*
* Search through mapping table for free index for a volume and if no free
* index then looks for a volume with high mapping index
*
* Returns the index of map table entry on success or bad index.
*/
static u32
_mapping_get_free_ir_mt_idx(struct mps_softc *sc)
{
u8 high_missing_count = 0;
u32 start_idx, end_idx, map_idx;
u32 high_idx = MPS_MAPTABLE_BAD_IDX;
struct dev_mapping_table *mt_entry;
_mapping_get_ir_maprange(sc, &start_idx, &end_idx);
mt_entry = &sc->mapping_table[start_idx];
for (map_idx = start_idx; map_idx <= end_idx; map_idx++, mt_entry++)
if (!(mt_entry->device_info & MPS_MAP_IN_USE))
return map_idx;
mt_entry = &sc->mapping_table[start_idx];
for (map_idx = start_idx; map_idx <= end_idx; map_idx++, mt_entry++) {
if (mt_entry->missing_count > high_missing_count) {
high_missing_count = mt_entry->missing_count;
high_idx = map_idx;
}
}
return high_idx;
}
/**
* _mapping_get_free_mt_idx - get first free index for a device
* @sc: per adapter object
* @start_idx: offset in the table to start search
*
* Returns the index of map table entry on success or bad index.
*/
static u32
_mapping_get_free_mt_idx(struct mps_softc *sc, u32 start_idx)
{
u32 map_idx, max_idx = sc->max_devices;
struct dev_mapping_table *mt_entry = &sc->mapping_table[start_idx];
u16 volume_mapping_flags;
volume_mapping_flags = le16toh(sc->ioc_pg8.IRVolumeMappingFlags) &
MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
if (sc->ir_firmware && (volume_mapping_flags ==
MPI2_IOCPAGE8_IRFLAGS_HIGH_VOLUME_MAPPING))
max_idx -= sc->max_volumes;
for (map_idx = start_idx; map_idx < max_idx; map_idx++, mt_entry++)
if (!(mt_entry->device_info & (MPS_MAP_IN_USE |
MPS_DEV_RESERVED)))
return map_idx;
return MPS_MAPTABLE_BAD_IDX;
}
/**
* _mapping_get_dpm_idx_from_id - get DPM index from ID
* @sc: per adapter object
* @id: volume WWID or enclosure ID or device ID
*
* Returns the index of DPM entry on success or bad index.
*/
static u16
_mapping_get_dpm_idx_from_id(struct mps_softc *sc, u64 id, u32 phy_bits)
{
u16 entry_num;
uint64_t PhysicalIdentifier;
Mpi2DriverMap0Entry_t *dpm_entry;
dpm_entry = (Mpi2DriverMap0Entry_t *)((u8 *)sc->dpm_pg0 +
sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER));
PhysicalIdentifier = dpm_entry->PhysicalIdentifier.High;
PhysicalIdentifier = (PhysicalIdentifier << 32) |
dpm_entry->PhysicalIdentifier.Low;
for (entry_num = 0; entry_num < sc->max_dpm_entries; entry_num++,
dpm_entry++)
if ((id == PhysicalIdentifier) &&
(!phy_bits || !dpm_entry->PhysicalBitsMapping ||
(phy_bits & dpm_entry->PhysicalBitsMapping)))
return entry_num;
return MPS_DPM_BAD_IDX;
}
/**
* _mapping_get_free_dpm_idx - get first available DPM index
* @sc: per adapter object
*
* Returns the index of DPM entry on success or bad index.
*/
static u32
_mapping_get_free_dpm_idx(struct mps_softc *sc)
{
u16 entry_num;
for (entry_num = 0; entry_num < sc->max_dpm_entries; entry_num++) {
if (!sc->dpm_entry_used[entry_num])
return entry_num;
}
return MPS_DPM_BAD_IDX;
}
/**
* _mapping_update_ir_missing_cnt - Updates missing count for a volume
* @sc: per adapter object
* @map_idx: map table index of the volume
* @element: IR configuration change element
* @wwid: IR volume ID.
*
* Updates the missing count in the map table and in the DPM entry for a volume
*
* Returns nothing.
*/
static void
_mapping_update_ir_missing_cnt(struct mps_softc *sc, u32 map_idx,
Mpi2EventIrConfigElement_t *element, u64 wwid)
{
struct dev_mapping_table *mt_entry;
u8 missing_cnt, reason = element->ReasonCode;
u16 dpm_idx;
Mpi2DriverMap0Entry_t *dpm_entry;
if (!sc->is_dpm_enable)
return;
mt_entry = &sc->mapping_table[map_idx];
if (reason == MPI2_EVENT_IR_CHANGE_RC_ADDED) {
mt_entry->missing_count = 0;
} else if (reason == MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED) {
mt_entry->missing_count = 0;
mt_entry->init_complete = 0;
} else if ((reason == MPI2_EVENT_IR_CHANGE_RC_REMOVED) ||
(reason == MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED)) {
if (!mt_entry->init_complete) {
if (mt_entry->missing_count < MPS_MAX_MISSING_COUNT)
mt_entry->missing_count++;
else
mt_entry->init_complete = 1;
}
if (!mt_entry->missing_count)
mt_entry->missing_count++;
mt_entry->dev_handle = 0;
}
dpm_idx = mt_entry->dpm_entry_num;
if (dpm_idx == MPS_DPM_BAD_IDX) {
if ((reason == MPI2_EVENT_IR_CHANGE_RC_ADDED) ||
(reason == MPI2_EVENT_IR_CHANGE_RC_REMOVED))
dpm_idx = _mapping_get_dpm_idx_from_id(sc,
mt_entry->physical_id, 0);
else if (reason == MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED)
return;
}
if (dpm_idx != MPS_DPM_BAD_IDX) {
dpm_entry = (Mpi2DriverMap0Entry_t *)((u8 *)sc->dpm_pg0 +
sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER));
dpm_entry += dpm_idx;
missing_cnt = dpm_entry->MappingInformation &
MPI2_DRVMAP0_MAPINFO_MISSING_MASK;
if ((mt_entry->physical_id ==
le64toh((u64)dpm_entry->PhysicalIdentifier.High |
dpm_entry->PhysicalIdentifier.Low)) && (missing_cnt ==
mt_entry->missing_count))
mt_entry->init_complete = 1;
} else {
dpm_idx = _mapping_get_free_dpm_idx(sc);
mt_entry->init_complete = 0;
}
if ((dpm_idx != MPS_DPM_BAD_IDX) && !mt_entry->init_complete) {
mt_entry->init_complete = 1;
mt_entry->dpm_entry_num = dpm_idx;
dpm_entry = (Mpi2DriverMap0Entry_t *)((u8 *)sc->dpm_pg0 +
sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER));
dpm_entry += dpm_idx;
dpm_entry->PhysicalIdentifier.Low =
(0xFFFFFFFF & mt_entry->physical_id);
dpm_entry->PhysicalIdentifier.High =
(mt_entry->physical_id >> 32);
dpm_entry->DeviceIndex = map_idx;
dpm_entry->MappingInformation = mt_entry->missing_count;
dpm_entry->PhysicalBitsMapping = 0;
dpm_entry->Reserved1 = 0;
sc->dpm_flush_entry[dpm_idx] = 1;
sc->dpm_entry_used[dpm_idx] = 1;
} else if (dpm_idx == MPS_DPM_BAD_IDX) {
printf("%s: no space to add entry in DPM table\n", __func__);
mt_entry->init_complete = 1;
}
}
/**
* _mapping_add_to_removal_table - mark an entry for removal
* @sc: per adapter object
* @handle: Handle of enclosures/device/volume
*
* Adds the handle or DPM entry number in removal table.
*
* Returns nothing.
*/
static void
_mapping_add_to_removal_table(struct mps_softc *sc, u16 handle,
u16 dpm_idx)
{
struct map_removal_table *remove_entry;
u32 i;
u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
remove_entry = sc->removal_table;
for (i = 0; i < sc->max_devices; i++, remove_entry++) {
if (remove_entry->dev_handle || remove_entry->dpm_entry_num !=
MPS_DPM_BAD_IDX)
continue;
if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) ==
MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) {
if (dpm_idx)
remove_entry->dpm_entry_num = dpm_idx;
if (remove_entry->dpm_entry_num == MPS_DPM_BAD_IDX)
remove_entry->dev_handle = handle;
} else if ((ioc_pg8_flags &
MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) ==
MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING)
remove_entry->dev_handle = handle;
break;
}
}
/**
* _mapping_update_missing_count - Update missing count for a device
* @sc: per adapter object
* @topo_change: Topology change event entry
*
* Search through the topology change list and if any device is found not
* responding it's associated map table entry and DPM entry is updated
*
* Returns nothing.
*/
static void
_mapping_update_missing_count(struct mps_softc *sc,
struct _map_topology_change *topo_change)
{
u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
u8 entry;
struct _map_phy_change *phy_change;
u32 map_idx;
struct dev_mapping_table *mt_entry;
Mpi2DriverMap0Entry_t *dpm_entry;
for (entry = 0; entry < topo_change->num_entries; entry++) {
phy_change = &topo_change->phy_details[entry];
if (!phy_change->dev_handle || (phy_change->reason !=
MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING))
continue;
map_idx = _mapping_get_mt_idx_from_handle(sc, phy_change->
dev_handle);
phy_change->is_processed = 1;
if (map_idx == MPS_MAPTABLE_BAD_IDX) {
printf("%s: device is already removed from mapping "
"table\n", __func__);
continue;
}
mt_entry = &sc->mapping_table[map_idx];
if (!mt_entry->init_complete) {
if (mt_entry->missing_count < MPS_MAX_MISSING_COUNT)
mt_entry->missing_count++;
else
mt_entry->init_complete = 1;
}
if (!mt_entry->missing_count)
mt_entry->missing_count++;
_mapping_add_to_removal_table(sc, mt_entry->dev_handle, 0);
mt_entry->dev_handle = 0;
if (((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) ==
MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) &&
sc->is_dpm_enable && !mt_entry->init_complete &&
mt_entry->dpm_entry_num != MPS_DPM_BAD_IDX) {
dpm_entry =
(Mpi2DriverMap0Entry_t *) ((u8 *)sc->dpm_pg0 +
sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER));
dpm_entry += mt_entry->dpm_entry_num;
dpm_entry->MappingInformation = mt_entry->missing_count;
sc->dpm_flush_entry[mt_entry->dpm_entry_num] = 1;
}
mt_entry->init_complete = 1;
}
}
/**
* _mapping_find_enc_map_space -find map table entries for enclosure
* @sc: per adapter object
* @et_entry: enclosure entry
*
* Search through the mapping table defragment it and provide contiguous
* space in map table for a particular enclosure entry
*
* Returns start index in map table or bad index.
*/
static u32
_mapping_find_enc_map_space(struct mps_softc *sc,
struct enc_mapping_table *et_entry)
{
u16 vol_mapping_flags;
u32 skip_count, end_of_table, map_idx, enc_idx;
u16 num_found;
u32 start_idx = MPS_MAPTABLE_BAD_IDX;
struct dev_mapping_table *mt_entry;
struct enc_mapping_table *enc_entry;
unsigned char done_flag = 0, found_space;
u16 max_num_phy_ids = le16toh(sc->ioc_pg8.MaxNumPhysicalMappedIDs);
skip_count = sc->num_rsvd_entries;
num_found = 0;
vol_mapping_flags = le16toh(sc->ioc_pg8.IRVolumeMappingFlags) &
MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
if (!sc->ir_firmware)
end_of_table = sc->max_devices;
else if (vol_mapping_flags == MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING)
end_of_table = sc->max_devices;
else
end_of_table = sc->max_devices - sc->max_volumes;
for (map_idx = (max_num_phy_ids + skip_count);
map_idx < end_of_table; map_idx++) {
mt_entry = &sc->mapping_table[map_idx];
if ((et_entry->enclosure_id == mt_entry->physical_id) &&
(!mt_entry->phy_bits || (mt_entry->phy_bits &
et_entry->phy_bits))) {
num_found += 1;
if (num_found == et_entry->num_slots) {
start_idx = (map_idx - num_found) + 1;
return start_idx;
}
} else
num_found = 0;
}
for (map_idx = (max_num_phy_ids + skip_count);
map_idx < end_of_table; map_idx++) {
mt_entry = &sc->mapping_table[map_idx];
if (!(mt_entry->device_info & MPS_DEV_RESERVED)) {
num_found += 1;
if (num_found == et_entry->num_slots) {
start_idx = (map_idx - num_found) + 1;
return start_idx;
}
} else
num_found = 0;
}
while (!done_flag) {
enc_idx = _mapping_get_high_missing_et_idx(sc);
if (enc_idx == MPS_ENCTABLE_BAD_IDX)
return MPS_MAPTABLE_BAD_IDX;
enc_entry = &sc->enclosure_table[enc_idx];
/*VSP FIXME*/
enc_entry->skip_search = 1;
mt_entry = &sc->mapping_table[enc_entry->start_index];
for (map_idx = enc_entry->start_index; map_idx <
(enc_entry->start_index + enc_entry->num_slots); map_idx++,
mt_entry++)
mt_entry->device_info &= ~MPS_DEV_RESERVED;
found_space = 0;
for (map_idx = (max_num_phy_ids +
skip_count); map_idx < end_of_table; map_idx++) {
mt_entry = &sc->mapping_table[map_idx];
if (!(mt_entry->device_info & MPS_DEV_RESERVED)) {
num_found += 1;
if (num_found == et_entry->num_slots) {
start_idx = (map_idx - num_found) + 1;
found_space = 1;
}
} else
num_found = 0;
}
if (!found_space)
continue;
for (map_idx = start_idx; map_idx < (start_idx + num_found);
map_idx++) {
enc_entry = sc->enclosure_table;
for (enc_idx = 0; enc_idx < sc->num_enc_table_entries;
enc_idx++, enc_entry++) {
if (map_idx < enc_entry->start_index ||
map_idx > (enc_entry->start_index +
enc_entry->num_slots))
continue;
if (!enc_entry->removal_flag) {
enc_entry->removal_flag = 1;
_mapping_add_to_removal_table(sc, 0,
enc_entry->dpm_entry_num);
}
mt_entry = &sc->mapping_table[map_idx];
if (mt_entry->device_info &
MPS_MAP_IN_USE) {
_mapping_add_to_removal_table(sc,
mt_entry->dev_handle, 0);
_mapping_clear_map_entry(mt_entry);
}
if (map_idx == (enc_entry->start_index +
enc_entry->num_slots - 1))
_mapping_clear_enc_entry(et_entry);
}
}
enc_entry = sc->enclosure_table;
for (enc_idx = 0; enc_idx < sc->num_enc_table_entries;
enc_idx++, enc_entry++) {
if (!enc_entry->removal_flag) {
mt_entry = &sc->mapping_table[enc_entry->
start_index];
for (map_idx = enc_entry->start_index; map_idx <
(enc_entry->start_index +
enc_entry->num_slots); map_idx++,
mt_entry++)
mt_entry->device_info |=
MPS_DEV_RESERVED;
et_entry->skip_search = 0;
}
}
done_flag = 1;
}
return start_idx;
}
/**
* _mapping_get_dev_info -get information about newly added devices
* @sc: per adapter object
* @topo_change: Topology change event entry
*
* Search through the topology change event list and issues sas device pg0
* requests for the newly added device and reserved entries in tables
*
* Returns nothing
*/
static void
_mapping_get_dev_info(struct mps_softc *sc,
struct _map_topology_change *topo_change)
{
u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
Mpi2ConfigReply_t mpi_reply;
Mpi2SasDevicePage0_t sas_device_pg0;
u8 entry, enc_idx, phy_idx;
u32 map_idx, index, device_info;
struct _map_phy_change *phy_change, *tmp_phy_change;
uint64_t sas_address;
struct enc_mapping_table *et_entry;
struct dev_mapping_table *mt_entry;
u8 add_code = MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED;
int rc;
for (entry = 0; entry < topo_change->num_entries; entry++) {
phy_change = &topo_change->phy_details[entry];
if (phy_change->is_processed || !phy_change->dev_handle ||
phy_change->reason != MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED)
continue;
if (mps_config_get_sas_device_pg0(sc, &mpi_reply,
&sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
phy_change->dev_handle)) {
phy_change->is_processed = 1;
continue;
}
device_info = le32toh(sas_device_pg0.DeviceInfo);
if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) ==
MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) {
if ((device_info & MPI2_SAS_DEVICE_INFO_END_DEVICE) &&
(device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)) {
rc = mpssas_get_sas_address_for_sata_disk(sc,
&sas_address, phy_change->dev_handle,
device_info);
if (rc) {
printf("%s: failed to compute the "
"hashed SAS Address for SATA "
"device with handle 0x%04x\n",
__func__, phy_change->dev_handle);
sas_address =
sas_device_pg0.SASAddress.High;
sas_address = (sas_address << 32) |
sas_device_pg0.SASAddress.Low;
}
mps_dprint(sc, MPS_MAPPING,
"SAS Address for SATA device = %jx\n",
sas_address);
} else {
sas_address =
sas_device_pg0.SASAddress.High;
sas_address = (sas_address << 32) |
sas_device_pg0.SASAddress.Low;
}
} else {
sas_address = sas_device_pg0.SASAddress.High;
sas_address = (sas_address << 32) |
sas_device_pg0.SASAddress.Low;
}
phy_change->physical_id = sas_address;
phy_change->slot = le16toh(sas_device_pg0.Slot);
phy_change->device_info =
le32toh(sas_device_pg0.DeviceInfo);
if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) ==
MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) {
enc_idx = _mapping_get_enc_idx_from_handle(sc,
topo_change->enc_handle);
if (enc_idx == MPS_ENCTABLE_BAD_IDX) {
phy_change->is_processed = 1;
printf("%s: failed to add the device with "
"handle 0x%04x because the enclosure is "
"not in the mapping table\n", __func__,
phy_change->dev_handle);
continue;
}
if (!((phy_change->device_info &
MPI2_SAS_DEVICE_INFO_END_DEVICE) &&
(phy_change->device_info &
(MPI2_SAS_DEVICE_INFO_SSP_TARGET |
MPI2_SAS_DEVICE_INFO_STP_TARGET |
MPI2_SAS_DEVICE_INFO_SATA_DEVICE)))) {
phy_change->is_processed = 1;
continue;
}
et_entry = &sc->enclosure_table[enc_idx];
if (et_entry->start_index != MPS_MAPTABLE_BAD_IDX)
continue;
if (!topo_change->exp_handle) {
map_idx = sc->num_rsvd_entries;
et_entry->start_index = map_idx;
} else {
map_idx = _mapping_find_enc_map_space(sc,
et_entry);
et_entry->start_index = map_idx;
if (et_entry->start_index ==
MPS_MAPTABLE_BAD_IDX) {
phy_change->is_processed = 1;
for (phy_idx = 0; phy_idx <
topo_change->num_entries;
phy_idx++) {
tmp_phy_change =
&topo_change->phy_details
[phy_idx];
if (tmp_phy_change->reason ==
add_code)
tmp_phy_change->
is_processed = 1;
}
break;
}
}
mt_entry = &sc->mapping_table[map_idx];
for (index = map_idx; index < (et_entry->num_slots
+ map_idx); index++, mt_entry++) {
mt_entry->device_info = MPS_DEV_RESERVED;
mt_entry->physical_id = et_entry->enclosure_id;
mt_entry->phy_bits = et_entry->phy_bits;
}
}
}
}
/**
* _mapping_set_mid_to_eid -set map table data from enclosure table
* @sc: per adapter object
* @et_entry: enclosure entry
*
* Returns nothing
*/
static inline void
_mapping_set_mid_to_eid(struct mps_softc *sc,
struct enc_mapping_table *et_entry)
{
struct dev_mapping_table *mt_entry;
u16 slots = et_entry->num_slots, map_idx;
u32 start_idx = et_entry->start_index;
if (start_idx != MPS_MAPTABLE_BAD_IDX) {
mt_entry = &sc->mapping_table[start_idx];
for (map_idx = 0; map_idx < slots; map_idx++, mt_entry++)
mt_entry->physical_id = et_entry->enclosure_id;
}
}
/**
* _mapping_clear_removed_entries - mark the entries to be cleared
* @sc: per adapter object
*
* Search through the removal table and mark the entries which needs to be
* flushed to DPM and also updates the map table and enclosure table by
* clearing the corresponding entries.
*
* Returns nothing
*/
static void
_mapping_clear_removed_entries(struct mps_softc *sc)
{
u32 remove_idx;
struct map_removal_table *remove_entry;
Mpi2DriverMap0Entry_t *dpm_entry;
u8 done_flag = 0, num_entries, m, i;
struct enc_mapping_table *et_entry, *from, *to;
u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
if (sc->is_dpm_enable) {
remove_entry = sc->removal_table;
for (remove_idx = 0; remove_idx < sc->max_devices;
remove_idx++, remove_entry++) {
if (remove_entry->dpm_entry_num != MPS_DPM_BAD_IDX) {
dpm_entry = (Mpi2DriverMap0Entry_t *)
((u8 *) sc->dpm_pg0 +
sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER));
dpm_entry += remove_entry->dpm_entry_num;
dpm_entry->PhysicalIdentifier.Low = 0;
dpm_entry->PhysicalIdentifier.High = 0;
dpm_entry->DeviceIndex = 0;
dpm_entry->MappingInformation = 0;
dpm_entry->PhysicalBitsMapping = 0;
sc->dpm_flush_entry[remove_entry->
dpm_entry_num] = 1;
sc->dpm_entry_used[remove_entry->dpm_entry_num]
= 0;
remove_entry->dpm_entry_num = MPS_DPM_BAD_IDX;
}
}
}
if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) ==
MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) {
num_entries = sc->num_enc_table_entries;
while (!done_flag) {
done_flag = 1;
et_entry = sc->enclosure_table;
for (i = 0; i < num_entries; i++, et_entry++) {
if (!et_entry->enc_handle && et_entry->
init_complete) {
done_flag = 0;
if (i != (num_entries - 1)) {
from = &sc->enclosure_table
[i+1];
to = &sc->enclosure_table[i];
for (m = i; m < (num_entries -
1); m++, from++, to++) {
_mapping_set_mid_to_eid
(sc, to);
*to = *from;
}
_mapping_clear_enc_entry(to);
sc->num_enc_table_entries--;
num_entries =
sc->num_enc_table_entries;
} else {
_mapping_clear_enc_entry
(et_entry);
sc->num_enc_table_entries--;
num_entries =
sc->num_enc_table_entries;
}
}
}
}
}
}
/**
* _mapping_add_new_device -Add the new device into mapping table
* @sc: per adapter object
* @topo_change: Topology change event entry
*
* Search through the topology change event list and updates map table,
* enclosure table and DPM pages for for the newly added devices.
*
* Returns nothing
*/
static void
_mapping_add_new_device(struct mps_softc *sc,
struct _map_topology_change *topo_change)
{
u8 enc_idx, missing_cnt, is_removed = 0;
u16 dpm_idx;
u32 search_idx, map_idx;
u32 entry;
struct dev_mapping_table *mt_entry;
struct enc_mapping_table *et_entry;
struct _map_phy_change *phy_change;
u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
Mpi2DriverMap0Entry_t *dpm_entry;
uint64_t temp64_var;
u8 map_shift = MPI2_DRVMAP0_MAPINFO_SLOT_SHIFT;
u8 hdr_sz = sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER);
u16 max_num_phy_ids = le16toh(sc->ioc_pg8.MaxNumPhysicalMappedIDs);
for (entry = 0; entry < topo_change->num_entries; entry++) {
phy_change = &topo_change->phy_details[entry];
if (phy_change->is_processed)
continue;
if (phy_change->reason != MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED ||
!phy_change->dev_handle) {
phy_change->is_processed = 1;
continue;
}
if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) ==
MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) {
enc_idx = _mapping_get_enc_idx_from_handle
(sc, topo_change->enc_handle);
if (enc_idx == MPS_ENCTABLE_BAD_IDX) {
phy_change->is_processed = 1;
printf("%s: failed to add the device with "
"handle 0x%04x because the enclosure is "
"not in the mapping table\n", __func__,
phy_change->dev_handle);
continue;
}
et_entry = &sc->enclosure_table[enc_idx];
if (et_entry->start_index == MPS_MAPTABLE_BAD_IDX) {
phy_change->is_processed = 1;
if (!sc->mt_full_retry) {
sc->mt_add_device_failed = 1;
continue;
}
printf("%s: failed to add the device with "
"handle 0x%04x because there is no free "
"space available in the mapping table\n",
__func__, phy_change->dev_handle);
continue;
}
map_idx = et_entry->start_index + phy_change->slot -
et_entry->start_slot;
mt_entry = &sc->mapping_table[map_idx];
mt_entry->physical_id = phy_change->physical_id;
mt_entry->channel = 0;
mt_entry->id = map_idx;
mt_entry->dev_handle = phy_change->dev_handle;
mt_entry->missing_count = 0;
mt_entry->dpm_entry_num = et_entry->dpm_entry_num;
mt_entry->device_info = phy_change->device_info |
(MPS_DEV_RESERVED | MPS_MAP_IN_USE);
if (sc->is_dpm_enable) {
dpm_idx = et_entry->dpm_entry_num;
if (dpm_idx == MPS_DPM_BAD_IDX)
dpm_idx = _mapping_get_dpm_idx_from_id
(sc, et_entry->enclosure_id,
et_entry->phy_bits);
if (dpm_idx == MPS_DPM_BAD_IDX) {
dpm_idx = _mapping_get_free_dpm_idx(sc);
if (dpm_idx != MPS_DPM_BAD_IDX) {
dpm_entry =
(Mpi2DriverMap0Entry_t *)
((u8 *) sc->dpm_pg0 +
hdr_sz);
dpm_entry += dpm_idx;
dpm_entry->
PhysicalIdentifier.Low =
(0xFFFFFFFF &
et_entry->enclosure_id);
dpm_entry->
PhysicalIdentifier.High =
( et_entry->enclosure_id
>> 32);
dpm_entry->DeviceIndex =
(U16)et_entry->start_index;
dpm_entry->MappingInformation =
et_entry->num_slots;
dpm_entry->MappingInformation
<<= map_shift;
dpm_entry->PhysicalBitsMapping
= et_entry->phy_bits;
et_entry->dpm_entry_num =
dpm_idx;
/* FIXME Do I need to set the dpm_idxin mt_entry too */
sc->dpm_entry_used[dpm_idx] = 1;
sc->dpm_flush_entry[dpm_idx] =
1;
phy_change->is_processed = 1;
} else {
phy_change->is_processed = 1;
mps_dprint(sc, MPS_INFO, "%s: "
"failed to add the device "
"with handle 0x%04x to "
"persistent table because "
"there is no free space "
"available\n", __func__,
phy_change->dev_handle);
}
} else {
et_entry->dpm_entry_num = dpm_idx;
mt_entry->dpm_entry_num = dpm_idx;
}
}
/* FIXME Why not mt_entry too? */
et_entry->init_complete = 1;
} else if ((ioc_pg8_flags &
MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) ==
MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) {
map_idx = _mapping_get_mt_idx_from_id
(sc, phy_change->physical_id);
if (map_idx == MPS_MAPTABLE_BAD_IDX) {
search_idx = sc->num_rsvd_entries;
if (topo_change->exp_handle)
search_idx += max_num_phy_ids;
map_idx = _mapping_get_free_mt_idx(sc,
search_idx);
}
if (map_idx == MPS_MAPTABLE_BAD_IDX) {
map_idx = _mapping_get_high_missing_mt_idx(sc);
if (map_idx != MPS_MAPTABLE_BAD_IDX) {
mt_entry = &sc->mapping_table[map_idx];
if (mt_entry->dev_handle) {
_mapping_add_to_removal_table
(sc, mt_entry->dev_handle,
0);
is_removed = 1;
}
mt_entry->init_complete = 0;
}
}
if (map_idx != MPS_MAPTABLE_BAD_IDX) {
mt_entry = &sc->mapping_table[map_idx];
mt_entry->physical_id = phy_change->physical_id;
mt_entry->channel = 0;
mt_entry->id = map_idx;
mt_entry->dev_handle = phy_change->dev_handle;
mt_entry->missing_count = 0;
mt_entry->device_info = phy_change->device_info
| (MPS_DEV_RESERVED | MPS_MAP_IN_USE);
} else {
phy_change->is_processed = 1;
if (!sc->mt_full_retry) {
sc->mt_add_device_failed = 1;
continue;
}
printf("%s: failed to add the device with "
"handle 0x%04x because there is no free "
"space available in the mapping table\n",
__func__, phy_change->dev_handle);
continue;
}
if (sc->is_dpm_enable) {
if (mt_entry->dpm_entry_num !=
MPS_DPM_BAD_IDX) {
dpm_idx = mt_entry->dpm_entry_num;
dpm_entry = (Mpi2DriverMap0Entry_t *)
((u8 *)sc->dpm_pg0 + hdr_sz);
dpm_entry += dpm_idx;
missing_cnt = dpm_entry->
MappingInformation &
MPI2_DRVMAP0_MAPINFO_MISSING_MASK;
temp64_var = dpm_entry->
PhysicalIdentifier.High;
temp64_var = (temp64_var << 32) |
dpm_entry->PhysicalIdentifier.Low;
if ((mt_entry->physical_id ==
temp64_var) && !missing_cnt)
mt_entry->init_complete = 1;
} else {
dpm_idx = _mapping_get_free_dpm_idx(sc);
mt_entry->init_complete = 0;
}
if (dpm_idx != MPS_DPM_BAD_IDX &&
!mt_entry->init_complete) {
mt_entry->init_complete = 1;
mt_entry->dpm_entry_num = dpm_idx;
dpm_entry = (Mpi2DriverMap0Entry_t *)
((u8 *)sc->dpm_pg0 + hdr_sz);
dpm_entry += dpm_idx;
dpm_entry->PhysicalIdentifier.Low =
(0xFFFFFFFF &
mt_entry->physical_id);
dpm_entry->PhysicalIdentifier.High =
(mt_entry->physical_id >> 32);
dpm_entry->DeviceIndex = (U16) map_idx;
dpm_entry->MappingInformation = 0;
dpm_entry->PhysicalBitsMapping = 0;
sc->dpm_entry_used[dpm_idx] = 1;
sc->dpm_flush_entry[dpm_idx] = 1;
phy_change->is_processed = 1;
} else if (dpm_idx == MPS_DPM_BAD_IDX) {
phy_change->is_processed = 1;
mps_dprint(sc, MPS_INFO, "%s: "
"failed to add the device "
"with handle 0x%04x to "
"persistent table because "
"there is no free space "
"available\n", __func__,
phy_change->dev_handle);
}
}
mt_entry->init_complete = 1;
}
phy_change->is_processed = 1;
}
if (is_removed)
_mapping_clear_removed_entries(sc);
}
/**
* _mapping_flush_dpm_pages -Flush the DPM pages to NVRAM
* @sc: per adapter object
*
* Returns nothing
*/
static void
_mapping_flush_dpm_pages(struct mps_softc *sc)
{
Mpi2DriverMap0Entry_t *dpm_entry;
Mpi2ConfigReply_t mpi_reply;
Mpi2DriverMappingPage0_t config_page;
u16 entry_num;
for (entry_num = 0; entry_num < sc->max_dpm_entries; entry_num++) {
if (!sc->dpm_flush_entry[entry_num])
continue;
memset(&config_page, 0, sizeof(Mpi2DriverMappingPage0_t));
memcpy(&config_page.Header, (u8 *)sc->dpm_pg0,
sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER));
dpm_entry = (Mpi2DriverMap0Entry_t *) ((u8 *)sc->dpm_pg0 +
sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER));
dpm_entry += entry_num;
dpm_entry->MappingInformation = htole16(dpm_entry->
MappingInformation);
dpm_entry->DeviceIndex = htole16(dpm_entry->DeviceIndex);
dpm_entry->PhysicalBitsMapping = htole32(dpm_entry->
PhysicalBitsMapping);
memcpy(&config_page.Entry, (u8 *)dpm_entry,
sizeof(Mpi2DriverMap0Entry_t));
/* TODO-How to handle failed writes? */
if (mps_config_set_dpm_pg0(sc, &mpi_reply, &config_page,
entry_num)) {
printf("%s: write of dpm entry %d for device failed\n",
__func__, entry_num);
} else
sc->dpm_flush_entry[entry_num] = 0;
dpm_entry->MappingInformation = le16toh(dpm_entry->
MappingInformation);
dpm_entry->DeviceIndex = le16toh(dpm_entry->DeviceIndex);
dpm_entry->PhysicalBitsMapping = le32toh(dpm_entry->
PhysicalBitsMapping);
}
}
/**
* _mapping_allocate_memory- allocates the memory required for mapping tables
* @sc: per adapter object
*
* Allocates the memory for all the tables required for host mapping
*
* Return 0 on success or non-zero on failure.
*/
int
mps_mapping_allocate_memory(struct mps_softc *sc)
{
uint32_t dpm_pg0_sz;
sc->mapping_table = malloc((sizeof(struct dev_mapping_table) *
sc->max_devices), M_MPT2, M_ZERO|M_NOWAIT);
if (!sc->mapping_table)
goto free_resources;
sc->removal_table = malloc((sizeof(struct map_removal_table) *
sc->max_devices), M_MPT2, M_ZERO|M_NOWAIT);
if (!sc->removal_table)
goto free_resources;
sc->enclosure_table = malloc((sizeof(struct enc_mapping_table) *
sc->max_enclosures), M_MPT2, M_ZERO|M_NOWAIT);
if (!sc->enclosure_table)
goto free_resources;
sc->dpm_entry_used = malloc((sizeof(u8) * sc->max_dpm_entries),
M_MPT2, M_ZERO|M_NOWAIT);
if (!sc->dpm_entry_used)
goto free_resources;
sc->dpm_flush_entry = malloc((sizeof(u8) * sc->max_dpm_entries),
M_MPT2, M_ZERO|M_NOWAIT);
if (!sc->dpm_flush_entry)
goto free_resources;
dpm_pg0_sz = sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER) +
(sc->max_dpm_entries * sizeof(MPI2_CONFIG_PAGE_DRIVER_MAP0_ENTRY));
sc->dpm_pg0 = malloc(dpm_pg0_sz, M_MPT2, M_ZERO|M_NOWAIT);
if (!sc->dpm_pg0) {
printf("%s: memory alloc failed for dpm page; disabling dpm\n",
__func__);
sc->is_dpm_enable = 0;
}
return 0;
free_resources:
free(sc->mapping_table, M_MPT2);
free(sc->removal_table, M_MPT2);
free(sc->enclosure_table, M_MPT2);
free(sc->dpm_entry_used, M_MPT2);
free(sc->dpm_flush_entry, M_MPT2);
free(sc->dpm_pg0, M_MPT2);
printf("%s: device initialization failed due to failure in mapping "
"table memory allocation\n", __func__);
return -1;
}
/**
* mps_mapping_free_memory- frees the memory allocated for mapping tables
* @sc: per adapter object
*
* Returns nothing.
*/
void
mps_mapping_free_memory(struct mps_softc *sc)
{
free(sc->mapping_table, M_MPT2);
free(sc->removal_table, M_MPT2);
free(sc->enclosure_table, M_MPT2);
free(sc->dpm_entry_used, M_MPT2);
free(sc->dpm_flush_entry, M_MPT2);
free(sc->dpm_pg0, M_MPT2);
}
static void
_mapping_process_dpm_pg0(struct mps_softc *sc)
{
u8 missing_cnt, enc_idx;
u16 slot_id, entry_num, num_slots;
u32 map_idx, dev_idx, start_idx, end_idx;
struct dev_mapping_table *mt_entry;
Mpi2DriverMap0Entry_t *dpm_entry;
u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
u16 max_num_phy_ids = le16toh(sc->ioc_pg8.MaxNumPhysicalMappedIDs);
struct enc_mapping_table *et_entry;
u64 physical_id;
u32 phy_bits = 0;
if (sc->ir_firmware)
_mapping_get_ir_maprange(sc, &start_idx, &end_idx);
dpm_entry = (Mpi2DriverMap0Entry_t *) ((uint8_t *) sc->dpm_pg0 +
sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER));
for (entry_num = 0; entry_num < sc->max_dpm_entries; entry_num++,
dpm_entry++) {
physical_id = dpm_entry->PhysicalIdentifier.High;
physical_id = (physical_id << 32) |
dpm_entry->PhysicalIdentifier.Low;
if (!physical_id) {
sc->dpm_entry_used[entry_num] = 0;
continue;
}
sc->dpm_entry_used[entry_num] = 1;
dpm_entry->MappingInformation = le16toh(dpm_entry->
MappingInformation);
missing_cnt = dpm_entry->MappingInformation &
MPI2_DRVMAP0_MAPINFO_MISSING_MASK;
dev_idx = le16toh(dpm_entry->DeviceIndex);
phy_bits = le32toh(dpm_entry->PhysicalBitsMapping);
if (sc->ir_firmware && (dev_idx >= start_idx) &&
(dev_idx <= end_idx)) {
mt_entry = &sc->mapping_table[dev_idx];
mt_entry->physical_id = dpm_entry->PhysicalIdentifier.High;
mt_entry->physical_id = (mt_entry->physical_id << 32) |
dpm_entry->PhysicalIdentifier.Low;
mt_entry->channel = MPS_RAID_CHANNEL;
mt_entry->id = dev_idx;
mt_entry->missing_count = missing_cnt;
mt_entry->dpm_entry_num = entry_num;
mt_entry->device_info = MPS_DEV_RESERVED;
continue;
}
if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) ==
MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) {
if (dev_idx < (sc->num_rsvd_entries +
max_num_phy_ids)) {
slot_id = 0;
if (ioc_pg8_flags &
MPI2_IOCPAGE8_FLAGS_DA_START_SLOT_1)
slot_id = 1;
num_slots = max_num_phy_ids;
} else {
slot_id = 0;
num_slots = dpm_entry->MappingInformation &
MPI2_DRVMAP0_MAPINFO_SLOT_MASK;
num_slots >>= MPI2_DRVMAP0_MAPINFO_SLOT_SHIFT;
}
enc_idx = sc->num_enc_table_entries;
if (enc_idx >= sc->max_enclosures) {
printf("%s: enclosure entries exceed max "
"enclosures of %d\n", __func__,
sc->max_enclosures);
break;
}
sc->num_enc_table_entries++;
et_entry = &sc->enclosure_table[enc_idx];
physical_id = dpm_entry->PhysicalIdentifier.High;
et_entry->enclosure_id = (physical_id << 32) |
dpm_entry->PhysicalIdentifier.Low;
et_entry->start_index = dev_idx;
et_entry->dpm_entry_num = entry_num;
et_entry->num_slots = num_slots;
et_entry->start_slot = slot_id;
et_entry->missing_count = missing_cnt;
et_entry->phy_bits = phy_bits;
mt_entry = &sc->mapping_table[dev_idx];
for (map_idx = dev_idx; map_idx < (dev_idx + num_slots);
map_idx++, mt_entry++) {
if (mt_entry->dpm_entry_num !=
MPS_DPM_BAD_IDX) {
printf("%s: conflict in mapping table "
"for enclosure %d\n", __func__,
enc_idx);
break;
}
physical_id = dpm_entry->PhysicalIdentifier.High;
mt_entry->physical_id = (physical_id << 32) |
dpm_entry->PhysicalIdentifier.Low;
mt_entry->phy_bits = phy_bits;
mt_entry->channel = 0;
mt_entry->id = dev_idx;
mt_entry->dpm_entry_num = entry_num;
mt_entry->missing_count = missing_cnt;
mt_entry->device_info = MPS_DEV_RESERVED;
}
} else if ((ioc_pg8_flags &
MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) ==
MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) {
map_idx = dev_idx;
mt_entry = &sc->mapping_table[map_idx];
if (mt_entry->dpm_entry_num != MPS_DPM_BAD_IDX) {
printf("%s: conflict in mapping table for "
"device %d\n", __func__, map_idx);
break;
}
physical_id = dpm_entry->PhysicalIdentifier.High;
mt_entry->physical_id = (physical_id << 32) |
dpm_entry->PhysicalIdentifier.Low;
mt_entry->phy_bits = phy_bits;
mt_entry->channel = 0;
mt_entry->id = dev_idx;
mt_entry->missing_count = missing_cnt;
mt_entry->dpm_entry_num = entry_num;
mt_entry->device_info = MPS_DEV_RESERVED;
}
} /*close the loop for DPM table */
}
/*
* mps_mapping_check_devices - start of the day check for device availabilty
* @sc: per adapter object
* @sleep_flag: Flag indicating whether this function can sleep or not
*
* Returns nothing.
*/
void
mps_mapping_check_devices(struct mps_softc *sc, int sleep_flag)
{
u32 i;
/* u32 cntdn, i;
u32 timeout = 60;*/
struct dev_mapping_table *mt_entry;
u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
struct enc_mapping_table *et_entry;
u32 start_idx, end_idx;
/* We need to ucomment this when this function is called
* from the port enable complete */
#if 0
sc->track_mapping_events = 0;
cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
do {
if (!sc->pending_map_events)
break;
if (sleep_flag == CAN_SLEEP)
pause("mps_pause", (hz/1000));/* 1msec sleep */
else
DELAY(500); /* 500 useconds delay */
} while (--cntdn);
if (!cntdn)
printf("%s: there are %d"
" pending events after %d seconds of delay\n",
__func__, sc->pending_map_events, timeout);
#endif
sc->pending_map_events = 0;
if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) ==
MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING) {
et_entry = sc->enclosure_table;
for (i = 0; i < sc->num_enc_table_entries; i++, et_entry++) {
if (!et_entry->init_complete) {
if (et_entry->missing_count <
MPS_MAX_MISSING_COUNT) {
et_entry->missing_count++;
if (et_entry->dpm_entry_num !=
MPS_DPM_BAD_IDX)
_mapping_commit_enc_entry(sc,
et_entry);
}
et_entry->init_complete = 1;
}
}
if (!sc->ir_firmware)
return;
_mapping_get_ir_maprange(sc, &start_idx, &end_idx);
mt_entry = &sc->mapping_table[start_idx];
for (i = start_idx; i < (end_idx + 1); i++, mt_entry++) {
if (mt_entry->device_info & MPS_DEV_RESERVED
&& !mt_entry->physical_id)
mt_entry->init_complete = 1;
else if (mt_entry->device_info & MPS_DEV_RESERVED) {
if (!mt_entry->init_complete) {
if (mt_entry->missing_count <
MPS_MAX_MISSING_COUNT) {
mt_entry->missing_count++;
if (mt_entry->dpm_entry_num !=
MPS_DPM_BAD_IDX)
_mapping_commit_map_entry(sc,
mt_entry);
}
mt_entry->init_complete = 1;
}
}
}
} else if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) ==
MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING) {
mt_entry = sc->mapping_table;
for (i = 0; i < sc->max_devices; i++, mt_entry++) {
if (mt_entry->device_info & MPS_DEV_RESERVED
&& !mt_entry->physical_id)
mt_entry->init_complete = 1;
else if (mt_entry->device_info & MPS_DEV_RESERVED) {
if (!mt_entry->init_complete) {
if (mt_entry->missing_count <
MPS_MAX_MISSING_COUNT) {
mt_entry->missing_count++;
if (mt_entry->dpm_entry_num !=
MPS_DPM_BAD_IDX)
_mapping_commit_map_entry(sc,
mt_entry);
}
mt_entry->init_complete = 1;
}
}
}
}
}
/**
* mps_mapping_is_reinit_required - check whether event replay required
* @sc: per adapter object
*
* Checks the per ioc flags and decide whether reinit of events required
*
* Returns 1 for reinit of ioc 0 for not.
*/
int mps_mapping_is_reinit_required(struct mps_softc *sc)
{
if (!sc->mt_full_retry && sc->mt_add_device_failed) {
sc->mt_full_retry = 1;
sc->mt_add_device_failed = 0;
_mapping_flush_dpm_pages(sc);
return 1;
}
sc->mt_full_retry = 1;
return 0;
}
/**
* mps_mapping_initialize - initialize mapping tables
* @sc: per adapter object
*
* Read controller persitant mapping tables into internal data area.
*
* Return 0 for success or non-zero for failure.
*/
int
mps_mapping_initialize(struct mps_softc *sc)
{
uint16_t volume_mapping_flags, dpm_pg0_sz;
uint32_t i;
Mpi2ConfigReply_t mpi_reply;
int error;
uint8_t retry_count;
uint16_t ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
/* The additional 1 accounts for the virtual enclosure
* created for the controller
*/
sc->max_enclosures = sc->facts->MaxEnclosures + 1;
sc->max_expanders = sc->facts->MaxSasExpanders;
sc->max_volumes = sc->facts->MaxVolumes;
sc->max_devices = sc->facts->MaxTargets + sc->max_volumes;
sc->pending_map_events = 0;
sc->num_enc_table_entries = 0;
sc->num_rsvd_entries = 0;
sc->num_channels = 1;
sc->max_dpm_entries = sc->ioc_pg8.MaxPersistentEntries;
sc->is_dpm_enable = (sc->max_dpm_entries) ? 1 : 0;
sc->track_mapping_events = 0;
if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_DISABLE_PERSISTENT_MAPPING)
sc->is_dpm_enable = 0;
if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_RESERVED_TARGETID_0)
sc->num_rsvd_entries = 1;
volume_mapping_flags = sc->ioc_pg8.IRVolumeMappingFlags &
MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
if (sc->ir_firmware && (volume_mapping_flags ==
MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING))
sc->num_rsvd_entries += sc->max_volumes;
error = mps_mapping_allocate_memory(sc);
if (error)
return (error);
for (i = 0; i < sc->max_devices; i++)
_mapping_clear_map_entry(sc->mapping_table + i);
for (i = 0; i < sc->max_enclosures; i++)
_mapping_clear_enc_entry(sc->enclosure_table + i);
for (i = 0; i < sc->max_devices; i++) {
sc->removal_table[i].dev_handle = 0;
sc->removal_table[i].dpm_entry_num = MPS_DPM_BAD_IDX;
}
memset(sc->dpm_entry_used, 0, sc->max_dpm_entries);
memset(sc->dpm_flush_entry, 0, sc->max_dpm_entries);
if (sc->is_dpm_enable) {
dpm_pg0_sz = sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER) +
(sc->max_dpm_entries *
sizeof(MPI2_CONFIG_PAGE_DRIVER_MAP0_ENTRY));
retry_count = 0;
retry_read_dpm:
if (mps_config_get_dpm_pg0(sc, &mpi_reply, sc->dpm_pg0,
dpm_pg0_sz)) {
printf("%s: dpm page read failed; disabling dpm\n",
__func__);
if (retry_count < 3) {
retry_count++;
goto retry_read_dpm;
}
sc->is_dpm_enable = 0;
}
}
if (sc->is_dpm_enable)
_mapping_process_dpm_pg0(sc);
sc->track_mapping_events = 1;
return 0;
}
/**
* mps_mapping_exit - clear mapping table and associated memory
* @sc: per adapter object
*
* Returns nothing.
*/
void
mps_mapping_exit(struct mps_softc *sc)
{
_mapping_flush_dpm_pages(sc);
mps_mapping_free_memory(sc);
}
/**
* mps_mapping_get_sas_id - assign a target id for sas device
* @sc: per adapter object
* @sas_address: sas address of the device
* @handle: device handle
*
* Returns valid ID on success or BAD_ID.
*/
unsigned int
mps_mapping_get_sas_id(struct mps_softc *sc, uint64_t sas_address, u16 handle)
{
u32 map_idx;
struct dev_mapping_table *mt_entry;
for (map_idx = 0; map_idx < sc->max_devices; map_idx++) {
mt_entry = &sc->mapping_table[map_idx];
if (mt_entry->dev_handle == handle && mt_entry->physical_id ==
sas_address)
return mt_entry->id;
}
return MPS_MAP_BAD_ID;
}
/**
* mps_mapping_get_sas_id_from_handle - find a target id in mapping table using
* only the dev handle. This is just a wrapper function for the local function
* _mapping_get_mt_idx_from_handle.
* @sc: per adapter object
* @handle: device handle
*
* Returns valid ID on success or BAD_ID.
*/
unsigned int
mps_mapping_get_sas_id_from_handle(struct mps_softc *sc, u16 handle)
{
return (_mapping_get_mt_idx_from_handle(sc, handle));
}
/**
* mps_mapping_get_raid_id - assign a target id for raid device
* @sc: per adapter object
* @wwid: world wide identifier for raid volume
* @handle: device handle
*
* Returns valid ID on success or BAD_ID.
*/
unsigned int
mps_mapping_get_raid_id(struct mps_softc *sc, u64 wwid, u16 handle)
{
u32 map_idx;
struct dev_mapping_table *mt_entry;
for (map_idx = 0; map_idx < sc->max_devices; map_idx++) {
mt_entry = &sc->mapping_table[map_idx];
if (mt_entry->dev_handle == handle && mt_entry->physical_id ==
wwid)
return mt_entry->id;
}
return MPS_MAP_BAD_ID;
}
/**
* mps_mapping_get_raid_id_from_handle - find raid device in mapping table
* using only the volume dev handle. This is just a wrapper function for the
* local function _mapping_get_ir_mt_idx_from_handle.
* @sc: per adapter object
* @volHandle: volume device handle
*
* Returns valid ID on success or BAD_ID.
*/
unsigned int
mps_mapping_get_raid_id_from_handle(struct mps_softc *sc, u16 volHandle)
{
return (_mapping_get_ir_mt_idx_from_handle(sc, volHandle));
}
/**
* mps_mapping_enclosure_dev_status_change_event - handle enclosure events
* @sc: per adapter object
* @event_data: event data payload
*
* Return nothing.
*/
void
mps_mapping_enclosure_dev_status_change_event(struct mps_softc *sc,
Mpi2EventDataSasEnclDevStatusChange_t *event_data)
{
u8 enc_idx, missing_count;
struct enc_mapping_table *et_entry;
Mpi2DriverMap0Entry_t *dpm_entry;
u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
u8 map_shift = MPI2_DRVMAP0_MAPINFO_SLOT_SHIFT;
u8 update_phy_bits = 0;
u32 saved_phy_bits;
uint64_t temp64_var;
if ((ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE) !=
MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING)
goto out;
dpm_entry = (Mpi2DriverMap0Entry_t *)((u8 *)sc->dpm_pg0 +
sizeof(MPI2_CONFIG_EXTENDED_PAGE_HEADER));
if (event_data->ReasonCode == MPI2_EVENT_SAS_ENCL_RC_ADDED) {
if (!event_data->NumSlots) {
printf("%s: enclosure with handle = 0x%x reported 0 "
"slots\n", __func__,
le16toh(event_data->EnclosureHandle));
goto out;
}
temp64_var = event_data->EnclosureLogicalID.High;
temp64_var = (temp64_var << 32) |
event_data->EnclosureLogicalID.Low;
enc_idx = _mapping_get_enc_idx_from_id(sc, temp64_var,
event_data->PhyBits);
if (enc_idx != MPS_ENCTABLE_BAD_IDX) {
et_entry = &sc->enclosure_table[enc_idx];
if (et_entry->init_complete &&
!et_entry->missing_count) {
printf("%s: enclosure %d is already present "
"with handle = 0x%x\n",__func__, enc_idx,
et_entry->enc_handle);
goto out;
}
et_entry->enc_handle = le16toh(event_data->
EnclosureHandle);
et_entry->start_slot = le16toh(event_data->StartSlot);
saved_phy_bits = et_entry->phy_bits;
et_entry->phy_bits |= le32toh(event_data->PhyBits);
if (saved_phy_bits != et_entry->phy_bits)
update_phy_bits = 1;
if (et_entry->missing_count || update_phy_bits) {
et_entry->missing_count = 0;
if (sc->is_dpm_enable &&
et_entry->dpm_entry_num !=
MPS_DPM_BAD_IDX) {
dpm_entry += et_entry->dpm_entry_num;
missing_count =
(u8)(dpm_entry->MappingInformation &
MPI2_DRVMAP0_MAPINFO_MISSING_MASK);
if (!et_entry->init_complete && (
missing_count || update_phy_bits)) {
dpm_entry->MappingInformation
= et_entry->num_slots;
dpm_entry->MappingInformation
<<= map_shift;
dpm_entry->PhysicalBitsMapping
= et_entry->phy_bits;
sc->dpm_flush_entry[et_entry->
dpm_entry_num] = 1;
}
}
}
} else {
enc_idx = sc->num_enc_table_entries;
if (enc_idx >= sc->max_enclosures) {
printf("%s: enclosure can not be added; "
"mapping table is full\n", __func__);
goto out;
}
sc->num_enc_table_entries++;
et_entry = &sc->enclosure_table[enc_idx];
et_entry->enc_handle = le16toh(event_data->
EnclosureHandle);
et_entry->enclosure_id = event_data->
EnclosureLogicalID.High;
et_entry->enclosure_id = ( et_entry->enclosure_id <<
32) | event_data->EnclosureLogicalID.Low;
et_entry->start_index = MPS_MAPTABLE_BAD_IDX;
et_entry->dpm_entry_num = MPS_DPM_BAD_IDX;
et_entry->num_slots = le16toh(event_data->NumSlots);
et_entry->start_slot = le16toh(event_data->StartSlot);
et_entry->phy_bits = le32toh(event_data->PhyBits);
}
et_entry->init_complete = 1;
} else if (event_data->ReasonCode ==
MPI2_EVENT_SAS_ENCL_RC_NOT_RESPONDING) {
enc_idx = _mapping_get_enc_idx_from_handle(sc,
le16toh(event_data->EnclosureHandle));
if (enc_idx == MPS_ENCTABLE_BAD_IDX) {
printf("%s: cannot unmap enclosure %d because it has "
"already been deleted", __func__, enc_idx);
goto out;
}
et_entry = &sc->enclosure_table[enc_idx];
if (!et_entry->init_complete) {
if (et_entry->missing_count < MPS_MAX_MISSING_COUNT)
et_entry->missing_count++;
else
et_entry->init_complete = 1;
}
if (!et_entry->missing_count)
et_entry->missing_count++;
if (sc->is_dpm_enable && !et_entry->init_complete &&
et_entry->dpm_entry_num != MPS_DPM_BAD_IDX) {
dpm_entry += et_entry->dpm_entry_num;
dpm_entry->MappingInformation = et_entry->num_slots;
dpm_entry->MappingInformation <<= map_shift;
dpm_entry->MappingInformation |=
et_entry->missing_count;
sc->dpm_flush_entry[et_entry->dpm_entry_num] = 1;
}
et_entry->init_complete = 1;
}
out:
_mapping_flush_dpm_pages(sc);
if (sc->pending_map_events)
sc->pending_map_events--;
}
/**
* mps_mapping_topology_change_event - handle topology change events
* @sc: per adapter object
* @event_data: event data payload
*
* Returns nothing.
*/
void
mps_mapping_topology_change_event(struct mps_softc *sc,
Mpi2EventDataSasTopologyChangeList_t *event_data)
{
struct _map_topology_change topo_change;
struct _map_phy_change *phy_change;
Mpi2EventSasTopoPhyEntry_t *event_phy_change;
u8 i, num_entries;
topo_change.enc_handle = le16toh(event_data->EnclosureHandle);
topo_change.exp_handle = le16toh(event_data->ExpanderDevHandle);
num_entries = event_data->NumEntries;
topo_change.num_entries = num_entries;
topo_change.start_phy_num = event_data->StartPhyNum;
topo_change.num_phys = event_data->NumPhys;
topo_change.exp_status = event_data->ExpStatus;
event_phy_change = event_data->PHY;
topo_change.phy_details = NULL;
if (!num_entries)
goto out;
phy_change = malloc(sizeof(struct _map_phy_change) * num_entries,
M_MPT2, M_NOWAIT|M_ZERO);
topo_change.phy_details = phy_change;
if (!phy_change)
goto out;
for (i = 0; i < num_entries; i++, event_phy_change++, phy_change++) {
phy_change->dev_handle = le16toh(event_phy_change->
AttachedDevHandle);
phy_change->reason = event_phy_change->PhyStatus &
MPI2_EVENT_SAS_TOPO_RC_MASK;
}
_mapping_update_missing_count(sc, &topo_change);
_mapping_get_dev_info(sc, &topo_change);
_mapping_clear_removed_entries(sc);
_mapping_add_new_device(sc, &topo_change);
out:
free(topo_change.phy_details, M_MPT2);
_mapping_flush_dpm_pages(sc);
if (sc->pending_map_events)
sc->pending_map_events--;
}
/**
* _mapping_check_update_ir_mt_idx - Check and update IR map table index
* @sc: per adapter object
* @event_data: event data payload
* @evt_idx: current event index
* @map_idx: current index and the place holder for new map table index
* @wwid_table: world wide name for volumes in the element table
*
* pass through IR events and find whether any events matches and if so
* tries to find new index if not returns failure
*
* Returns 0 on success and 1 on failure
*/
static int
_mapping_check_update_ir_mt_idx(struct mps_softc *sc,
Mpi2EventDataIrConfigChangeList_t *event_data, int evt_idx, u32 *map_idx,
u64 *wwid_table)
{
struct dev_mapping_table *mt_entry;
u32 st_idx, end_idx, mt_idx = *map_idx;
u8 match = 0;
Mpi2EventIrConfigElement_t *element;
u16 element_flags;
int i;
mt_entry = &sc->mapping_table[mt_idx];
_mapping_get_ir_maprange(sc, &st_idx, &end_idx);
search_again:
match = 0;
for (i = evt_idx + 1; i < event_data->NumElements; i++) {
element = (Mpi2EventIrConfigElement_t *)
&event_data->ConfigElement[i];
element_flags = le16toh(element->ElementFlags);
if ((element_flags &
MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK) !=
MPI2_EVENT_IR_CHANGE_EFLAGS_VOLUME_ELEMENT)
continue;
if (element->ReasonCode == MPI2_EVENT_IR_CHANGE_RC_ADDED ||
element->ReasonCode ==
MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED) {
if (mt_entry->physical_id == wwid_table[i]) {
match = 1;
break;
}
}
}
if (match) {
do {
mt_idx++;
if (mt_idx > end_idx)
return 1;
mt_entry = &sc->mapping_table[mt_idx];
} while (mt_entry->device_info & MPS_MAP_IN_USE);
goto search_again;
}
*map_idx = mt_idx;
return 0;
}
/**
* mps_mapping_ir_config_change_event - handle IR config change list events
* @sc: per adapter object
* @event_data: event data payload
*
* Returns nothing.
*/
void
mps_mapping_ir_config_change_event(struct mps_softc *sc,
Mpi2EventDataIrConfigChangeList_t *event_data)
{
Mpi2EventIrConfigElement_t *element;
int i;
u64 *wwid_table;
u32 map_idx, flags;
struct dev_mapping_table *mt_entry;
u16 element_flags;
u8 log_full_error = 0;
wwid_table = malloc(sizeof(u64) * event_data->NumElements, M_MPT2,
M_NOWAIT | M_ZERO);
if (!wwid_table)
goto out;
element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
flags = le32toh(event_data->Flags);
for (i = 0; i < event_data->NumElements; i++, element++) {
element_flags = le16toh(element->ElementFlags);
if ((element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_ADDED) &&
(element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_REMOVED) &&
(element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_NO_CHANGE)
&& (element->ReasonCode !=
MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED))
continue;
if ((element_flags &
MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK) ==
MPI2_EVENT_IR_CHANGE_EFLAGS_VOLUME_ELEMENT) {
mps_config_get_volume_wwid(sc,
le16toh(element->VolDevHandle), &wwid_table[i]);
map_idx = _mapping_get_ir_mt_idx_from_wwid(sc,
wwid_table[i]);
if (map_idx != MPS_MAPTABLE_BAD_IDX) {
mt_entry = &sc->mapping_table[map_idx];
mt_entry->device_info |= MPS_MAP_IN_USE;
}
}
}
if (flags == MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
goto out;
else {
element = (Mpi2EventIrConfigElement_t *)&event_data->
ConfigElement[0];
for (i = 0; i < event_data->NumElements; i++, element++) {
if (element->ReasonCode ==
MPI2_EVENT_IR_CHANGE_RC_ADDED ||
element->ReasonCode ==
MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED) {
map_idx = _mapping_get_ir_mt_idx_from_wwid
(sc, wwid_table[i]);
if (map_idx != MPS_MAPTABLE_BAD_IDX) {
mt_entry = &sc->mapping_table[map_idx];
mt_entry->channel = MPS_RAID_CHANNEL;
mt_entry->id = map_idx;
mt_entry->dev_handle = le16toh
(element->VolDevHandle);
mt_entry->device_info =
MPS_DEV_RESERVED | MPS_MAP_IN_USE;
_mapping_update_ir_missing_cnt(sc,
map_idx, element, wwid_table[i]);
continue;
}
map_idx = _mapping_get_free_ir_mt_idx(sc);
if (map_idx == MPS_MAPTABLE_BAD_IDX)
log_full_error = 1;
else if (i < (event_data->NumElements - 1)) {
log_full_error =
_mapping_check_update_ir_mt_idx
(sc, event_data, i, &map_idx,
wwid_table);
}
if (log_full_error) {
printf("%s: no space to add the RAID "
"volume with handle 0x%04x in "
"mapping table\n", __func__, le16toh
(element->VolDevHandle));
continue;
}
mt_entry = &sc->mapping_table[map_idx];
mt_entry->physical_id = wwid_table[i];
mt_entry->channel = MPS_RAID_CHANNEL;
mt_entry->id = map_idx;
mt_entry->dev_handle = le16toh(element->
VolDevHandle);
mt_entry->device_info = MPS_DEV_RESERVED |
MPS_MAP_IN_USE;
mt_entry->init_complete = 0;
_mapping_update_ir_missing_cnt(sc, map_idx,
element, wwid_table[i]);
} else if (element->ReasonCode ==
MPI2_EVENT_IR_CHANGE_RC_REMOVED) {
map_idx = _mapping_get_ir_mt_idx_from_wwid(sc,
wwid_table[i]);
if (map_idx == MPS_MAPTABLE_BAD_IDX) {
printf("%s: failed to remove a volume "
"because it has already been "
"removed\n", __func__);
continue;
}
_mapping_update_ir_missing_cnt(sc, map_idx,
element, wwid_table[i]);
} else if (element->ReasonCode ==
MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED) {
map_idx = _mapping_get_mt_idx_from_handle(sc,
le16toh(element->VolDevHandle));
if (map_idx == MPS_MAPTABLE_BAD_IDX) {
printf("%s: failed to remove volume "
"with handle 0x%04x because it has "
"already been removed\n", __func__,
le16toh(element->VolDevHandle));
continue;
}
mt_entry = &sc->mapping_table[map_idx];
_mapping_update_ir_missing_cnt(sc, map_idx,
element, mt_entry->physical_id);
}
}
}
out:
_mapping_flush_dpm_pages(sc);
free(wwid_table, M_MPT2);
if (sc->pending_map_events)
sc->pending_map_events--;
}
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