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freebsd/sys/dev/mps/mps_mapping.c
Steven Hartland 5d0b98f2c3 Fix uninitialized warning in mps 
Reviewed by:	pjd (mentor)
Approved by:	pjd (mentor)
MFC after:	2 weeks
2013-05-03 10:37:59 +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_INFO, "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;
printf("%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;
printf("%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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