From: Don Brace <don.brace@microsemi.com>
Date: Fri, 7 Dec 2018 16:30:05 -0600
Subject: scsi: smartpqi: add smp_utils support
Git-commit: 3d46a59a191e81f7ada771b8db71553916b851da
Patch-mainline: v5.0-rc1
References: bsc#1133547
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Mahesh Rajashekhara <mahesh.rajashekhara@microsemi.com>
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Reviewed-by: Dave Carroll <david.carroll@microsemi.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Lee Duncan <lduncan@suse.com>
---
drivers/scsi/smartpqi/smartpqi.h | 89 ++++++++++++++
drivers/scsi/smartpqi/smartpqi_init.c | 131 ++++++++++++--------
drivers/scsi/smartpqi/smartpqi_sas_transport.c | 164 +++++++++++++++++++++++--
3 files changed, 324 insertions(+), 60 deletions(-)
diff --git a/drivers/scsi/smartpqi/smartpqi.h b/drivers/scsi/smartpqi/smartpqi.h
index 4f52b5be3693..ba499a636f43 100644
--- a/drivers/scsi/smartpqi/smartpqi.h
+++ b/drivers/scsi/smartpqi/smartpqi.h
@@ -21,6 +21,9 @@
#if !defined(_SMARTPQI_H)
#define _SMARTPQI_H
+#include <scsi/scsi_host.h>
+#include <linux/bsg-lib.h>
+
#pragma pack(1)
#define PQI_DEVICE_SIGNATURE "PQI DREG"
@@ -855,6 +858,7 @@ struct pqi_scsi_dev {
u8 unique_id[16];
u8 is_physical_device : 1;
u8 is_external_raid_device : 1;
+ u8 is_expander_smp_device : 1;
u8 target_lun_valid : 1;
u8 device_gone : 1;
u8 new_device : 1;
@@ -964,6 +968,7 @@ struct pqi_sas_node {
struct pqi_sas_port {
struct list_head port_list_entry;
u64 sas_address;
+ struct pqi_scsi_dev *device;
struct sas_port *port;
int next_phy_index;
struct list_head phy_list_head;
@@ -1129,11 +1134,14 @@ enum pqi_ctrl_mode {
#define BMIC_WRITE 0x27
#define BMIC_SENSE_CONTROLLER_PARAMETERS 0x64
#define BMIC_SENSE_SUBSYSTEM_INFORMATION 0x66
+#define BMIC_CSMI_PASSTHRU 0x68
#define BMIC_WRITE_HOST_WELLNESS 0xa5
#define BMIC_FLUSH_CACHE 0xc2
#define BMIC_SET_DIAG_OPTIONS 0xf4
#define BMIC_SENSE_DIAG_OPTIONS 0xf5
+#define CSMI_CC_SAS_SMP_PASSTHRU 0X17
+
#define SA_FLUSH_CACHE 0x1
#define MASKED_DEVICE(lunid) ((lunid)[3] & 0xc0)
@@ -1160,6 +1168,10 @@ struct bmic_identify_controller {
u8 reserved3[32];
};
+#define SA_EXPANDER_SMP_DEVICE 0x05
+/*SCSI Invalid Device Type for SAS devices*/
+#define PQI_SAS_SCSI_INVALID_DEVTYPE 0xff
+
struct bmic_identify_physical_device {
u8 scsi_bus; /* SCSI Bus number on controller */
u8 scsi_id; /* SCSI ID on this bus */
@@ -1240,6 +1252,50 @@ struct bmic_identify_physical_device {
u8 padding_to_multiple_of_512[9];
};
+struct bmic_smp_request {
+ u8 frame_type;
+ u8 function;
+ u8 allocated_response_length;
+ u8 request_length;
+ u8 additional_request_bytes[1016];
+};
+
+struct bmic_smp_response {
+ u8 frame_type;
+ u8 function;
+ u8 function_result;
+ u8 response_length;
+ u8 additional_response_bytes[1016];
+};
+
+struct bmic_csmi_ioctl_header {
+ __le32 header_length;
+ u8 signature[8];
+ __le32 timeout;
+ __le32 control_code;
+ __le32 return_code;
+ __le32 length;
+};
+
+struct bmic_csmi_smp_passthru {
+ u8 phy_identifier;
+ u8 port_identifier;
+ u8 connection_rate;
+ u8 reserved;
+ __be64 destination_sas_address;
+ __le32 request_length;
+ struct bmic_smp_request request;
+ u8 connection_status;
+ u8 reserved1[3];
+ __le32 response_length;
+ struct bmic_smp_response response;
+};
+
+struct bmic_csmi_smp_passthru_buffer {
+ struct bmic_csmi_ioctl_header ioctl_header;
+ struct bmic_csmi_smp_passthru parameters;
+};
+
struct bmic_flush_cache {
u8 disable_flag;
u8 system_power_action;
@@ -1263,6 +1319,36 @@ struct bmic_diag_options {
#pragma pack()
+static inline struct pqi_ctrl_info *shost_to_hba(struct Scsi_Host *shost)
+{
+ void *hostdata = shost_priv(shost);
+
+ return *((struct pqi_ctrl_info **)hostdata);
+}
+
+static inline bool pqi_ctrl_offline(struct pqi_ctrl_info *ctrl_info)
+{
+ return !ctrl_info->controller_online;
+}
+
+static inline void pqi_ctrl_busy(struct pqi_ctrl_info *ctrl_info)
+{
+ atomic_inc(&ctrl_info->num_busy_threads);
+}
+
+static inline void pqi_ctrl_unbusy(struct pqi_ctrl_info *ctrl_info)
+{
+ atomic_dec(&ctrl_info->num_busy_threads);
+}
+
+static inline bool pqi_ctrl_blocked(struct pqi_ctrl_info *ctrl_info)
+{
+ return ctrl_info->block_requests;
+}
+
+void pqi_sas_smp_handler(struct bsg_job *job, struct Scsi_Host *shost,
+ struct sas_rphy *rphy);
+
int pqi_add_sas_host(struct Scsi_Host *shost, struct pqi_ctrl_info *ctrl_info);
void pqi_delete_sas_host(struct pqi_ctrl_info *ctrl_info);
int pqi_add_sas_device(struct pqi_sas_node *pqi_sas_node,
@@ -1271,6 +1357,9 @@ void pqi_remove_sas_device(struct pqi_scsi_dev *device);
struct pqi_scsi_dev *pqi_find_device_by_sas_rphy(
struct pqi_ctrl_info *ctrl_info, struct sas_rphy *rphy);
void pqi_prep_for_scsi_done(struct scsi_cmnd *scmd);
+int pqi_csmi_smp_passthru(struct pqi_ctrl_info *ctrl_info,
+ struct bmic_csmi_smp_passthru_buffer *buffer, size_t buffer_length,
+ struct pqi_raid_error_info *error_info);
extern struct sas_function_template pqi_sas_transport_functions;
diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c
index 509a081a6f17..96e171038eb6 100644
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -188,13 +188,6 @@ static inline bool pqi_scsi3addr_equal(u8 *scsi3addr1, u8 *scsi3addr2)
return memcmp(scsi3addr1, scsi3addr2, 8) == 0;
}
-static inline struct pqi_ctrl_info *shost_to_hba(struct Scsi_Host *shost)
-{
- void *hostdata = shost_priv(shost);
-
- return *((struct pqi_ctrl_info **)hostdata);
-}
-
static inline bool pqi_is_logical_device(struct pqi_scsi_dev *device)
{
return !device->is_physical_device;
@@ -205,11 +198,6 @@ static inline bool pqi_is_external_raid_addr(u8 *scsi3addr)
return scsi3addr[2] != 0;
}
-static inline bool pqi_ctrl_offline(struct pqi_ctrl_info *ctrl_info)
-{
- return !ctrl_info->controller_online;
-}
-
static inline void pqi_check_ctrl_health(struct pqi_ctrl_info *ctrl_info)
{
if (ctrl_info->controller_online)
@@ -248,11 +236,6 @@ static inline void pqi_ctrl_unblock_requests(struct pqi_ctrl_info *ctrl_info)
scsi_unblock_requests(ctrl_info->scsi_host);
}
-static inline bool pqi_ctrl_blocked(struct pqi_ctrl_info *ctrl_info)
-{
- return ctrl_info->block_requests;
-}
-
static unsigned long pqi_wait_if_ctrl_blocked(struct pqi_ctrl_info *ctrl_info,
unsigned long timeout_msecs)
{
@@ -282,16 +265,6 @@ static unsigned long pqi_wait_if_ctrl_blocked(struct pqi_ctrl_info *ctrl_info,
return remaining_msecs;
}
-static inline void pqi_ctrl_busy(struct pqi_ctrl_info *ctrl_info)
-{
- atomic_inc(&ctrl_info->num_busy_threads);
-}
-
-static inline void pqi_ctrl_unbusy(struct pqi_ctrl_info *ctrl_info)
-{
- atomic_dec(&ctrl_info->num_busy_threads);
-}
-
static inline void pqi_ctrl_wait_until_quiesced(struct pqi_ctrl_info *ctrl_info)
{
while (atomic_read(&ctrl_info->num_busy_threads) >
@@ -472,6 +445,13 @@ static int pqi_build_raid_path_request(struct pqi_ctrl_info *ctrl_info,
cdb[6] = cmd;
put_unaligned_be16(cdb_length, &cdb[7]);
break;
+ case BMIC_CSMI_PASSTHRU:
+ request->data_direction = SOP_BIDIRECTIONAL;
+ cdb[0] = BMIC_WRITE;
+ cdb[5] = CSMI_CC_SAS_SMP_PASSTHRU;
+ cdb[6] = cmd;
+ put_unaligned_be16(cdb_length, &cdb[7]);
+ break;
default:
dev_err(&ctrl_info->pci_dev->dev, "unknown command 0x%c\n",
cmd);
@@ -713,6 +693,13 @@ static int pqi_flush_cache(struct pqi_ctrl_info *ctrl_info,
return rc;
}
+int pqi_csmi_smp_passthru(struct pqi_ctrl_info *ctrl_info,
+ struct bmic_csmi_smp_passthru_buffer *buffer, size_t buffer_length,
+ struct pqi_raid_error_info *error_info)
+{
+ return pqi_send_ctrl_raid_with_error(ctrl_info, BMIC_CSMI_PASSTHRU,
+ buffer, buffer_length, error_info);
+}
#define PQI_FETCH_PTRAID_DATA (1UL<<31)
@@ -1298,6 +1285,9 @@ static int pqi_get_device_info(struct pqi_ctrl_info *ctrl_info,
u8 *buffer;
unsigned int retries;
+ if (device->is_expander_smp_device)
+ return 0;
+
buffer = kmalloc(64, GFP_KERNEL);
if (!buffer)
return -ENOMEM;
@@ -1585,6 +1575,14 @@ static enum pqi_find_result pqi_scsi_find_entry(struct pqi_ctrl_info *ctrl_info,
return DEVICE_NOT_FOUND;
}
+static inline const char *pqi_device_type(struct pqi_scsi_dev *device)
+{
+ if (device->is_expander_smp_device)
+ return "Enclosure SMP ";
+
+ return scsi_device_type(device->devtype);
+}
+
#define PQI_DEV_INFO_BUFFER_LENGTH 128
static void pqi_dev_info(struct pqi_ctrl_info *ctrl_info,
@@ -1620,7 +1618,7 @@ static void pqi_dev_info(struct pqi_ctrl_info *ctrl_info,
count += snprintf(buffer + count, PQI_DEV_INFO_BUFFER_LENGTH - count,
" %s %.8s %.16s ",
- scsi_device_type(device->devtype),
+ pqi_device_type(device),
device->vendor,
device->model);
@@ -1665,6 +1663,8 @@ static void pqi_scsi_update_device(struct pqi_scsi_dev *existing_device,
existing_device->is_physical_device = new_device->is_physical_device;
existing_device->is_external_raid_device =
new_device->is_external_raid_device;
+ existing_device->is_expander_smp_device =
+ new_device->is_expander_smp_device;
existing_device->aio_enabled = new_device->aio_enabled;
memcpy(existing_device->vendor, new_device->vendor,
sizeof(existing_device->vendor));
@@ -1721,6 +1721,14 @@ static inline void pqi_fixup_botched_add(struct pqi_ctrl_info *ctrl_info,
device->keep_device = false;
}
+static inline bool pqi_is_device_added(struct pqi_scsi_dev *device)
+{
+ if (device->is_expander_smp_device)
+ return device->sas_port != NULL;
+
+ return device->sdev != NULL;
+}
+
static void pqi_update_device_list(struct pqi_ctrl_info *ctrl_info,
struct pqi_scsi_dev *new_device_list[], unsigned int num_new_devices)
{
@@ -1815,7 +1823,7 @@ static void pqi_update_device_list(struct pqi_ctrl_info *ctrl_info,
} else {
pqi_dev_info(ctrl_info, "removed", device);
}
- if (device->sdev)
+ if (pqi_is_device_added(device))
pqi_remove_device(ctrl_info, device);
list_del(&device->delete_list_entry);
pqi_free_device(device);
@@ -1837,7 +1845,7 @@ static void pqi_update_device_list(struct pqi_ctrl_info *ctrl_info,
/* Expose any new devices. */
list_for_each_entry_safe(device, next, &add_list, add_list_entry) {
- if (!device->sdev) {
+ if (!pqi_is_device_added(device)) {
pqi_dev_info(ctrl_info, "added", device);
rc = pqi_add_device(ctrl_info, device);
if (rc) {
@@ -1854,7 +1862,12 @@ static void pqi_update_device_list(struct pqi_ctrl_info *ctrl_info,
static bool pqi_is_supported_device(struct pqi_scsi_dev *device)
{
- bool is_supported = false;
+ bool is_supported;
+
+ if (device->is_expander_smp_device)
+ return true;
+
+ is_supported = false;
switch (device->devtype) {
case TYPE_DISK:
@@ -1888,6 +1901,24 @@ static inline bool pqi_skip_device(u8 *scsi3addr)
return false;
}
+static inline bool pqi_is_device_with_sas_address(struct pqi_scsi_dev *device)
+{
+ if (!device->is_physical_device)
+ return false;
+
+ if (device->is_expander_smp_device)
+ return true;
+
+ switch (device->devtype) {
+ case TYPE_DISK:
+ case TYPE_ZBC:
+ case TYPE_ENCLOSURE:
+ return true;
+ }
+
+ return false;
+}
+
static inline bool pqi_expose_device(struct pqi_scsi_dev *device)
{
return !device->is_physical_device ||
@@ -2002,9 +2033,14 @@ static int pqi_update_scsi_devices(struct pqi_ctrl_info *ctrl_info)
memcpy(device->scsi3addr, scsi3addr, sizeof(device->scsi3addr));
device->is_physical_device = is_physical_device;
- if (!is_physical_device)
+ if (is_physical_device) {
+ if (phys_lun_ext_entry->device_type ==
+ SA_EXPANDER_SMP_DEVICE)
+ device->is_expander_smp_device = true;
+ } else {
device->is_external_raid_device =
pqi_is_external_raid_addr(scsi3addr);
+ }
/* Gather information about the device. */
rc = pqi_get_device_info(ctrl_info, device);
@@ -2037,30 +2073,23 @@ static int pqi_update_scsi_devices(struct pqi_ctrl_info *ctrl_info)
device->wwid = phys_lun_ext_entry->wwid;
if ((phys_lun_ext_entry->device_flags &
REPORT_PHYS_LUN_DEV_FLAG_AIO_ENABLED) &&
- phys_lun_ext_entry->aio_handle)
+ phys_lun_ext_entry->aio_handle) {
device->aio_enabled = true;
+ device->aio_handle =
+ phys_lun_ext_entry->aio_handle;
+ }
+ if (device->devtype == TYPE_DISK ||
+ device->devtype == TYPE_ZBC) {
+ pqi_get_physical_disk_info(ctrl_info,
+ device, id_phys);
+ }
} else {
memcpy(device->volume_id, log_lun_ext_entry->volume_id,
sizeof(device->volume_id));
}
- switch (device->devtype) {
- case TYPE_DISK:
- case TYPE_ZBC:
- case TYPE_ENCLOSURE:
- if (device->is_physical_device) {
- device->sas_address =
- get_unaligned_be64(&device->wwid);
- if (device->devtype == TYPE_DISK ||
- device->devtype == TYPE_ZBC) {
- device->aio_handle =
- phys_lun_ext_entry->aio_handle;
- pqi_get_physical_disk_info(ctrl_info,
- device, id_phys);
- }
- }
- break;
- }
+ if (pqi_is_device_with_sas_address(device))
+ device->sas_address = get_unaligned_be64(&device->wwid);
new_device_list[num_valid_devices++] = device;
}
@@ -2103,7 +2132,7 @@ static void pqi_remove_all_scsi_devices(struct pqi_ctrl_info *ctrl_info)
if (!device)
break;
- if (device->sdev)
+ if (pqi_is_device_added(device))
pqi_remove_device(ctrl_info, device);
pqi_free_device(device);
}
diff --git a/drivers/scsi/smartpqi/smartpqi_sas_transport.c b/drivers/scsi/smartpqi/smartpqi_sas_transport.c
index b209a35e482e..0e4ef215115f 100644
--- a/drivers/scsi/smartpqi/smartpqi_sas_transport.c
+++ b/drivers/scsi/smartpqi/smartpqi_sas_transport.c
@@ -17,9 +17,11 @@
*/
#include <linux/kernel.h>
+#include <linux/bsg-lib.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_transport_sas.h>
+#include <asm/unaligned.h>
#include "smartpqi.h"
static struct pqi_sas_phy *pqi_alloc_sas_phy(struct pqi_sas_port *pqi_sas_port)
@@ -97,14 +99,32 @@ static int pqi_sas_port_add_rphy(struct pqi_sas_port *pqi_sas_port,
identify = &rphy->identify;
identify->sas_address = pqi_sas_port->sas_address;
- identify->initiator_port_protocols = SAS_PROTOCOL_STP;
- identify->target_port_protocols = SAS_PROTOCOL_STP;
+
+ if (pqi_sas_port->device &&
+ pqi_sas_port->device->is_expander_smp_device) {
+ identify->initiator_port_protocols = SAS_PROTOCOL_SMP;
+ identify->target_port_protocols = SAS_PROTOCOL_SMP;
+ } else {
+ identify->initiator_port_protocols = SAS_PROTOCOL_STP;
+ identify->target_port_protocols = SAS_PROTOCOL_STP;
+ }
return sas_rphy_add(rphy);
}
+static struct sas_rphy *pqi_sas_rphy_alloc(struct pqi_sas_port *pqi_sas_port)
+{
+ if (pqi_sas_port->device &&
+ pqi_sas_port->device->is_expander_smp_device)
+ return sas_expander_alloc(pqi_sas_port->port,
+ SAS_FANOUT_EXPANDER_DEVICE);
+
+ return sas_end_device_alloc(pqi_sas_port->port);
+}
+
static struct pqi_sas_port *pqi_alloc_sas_port(
- struct pqi_sas_node *pqi_sas_node, u64 sas_address)
+ struct pqi_sas_node *pqi_sas_node, u64 sas_address,
+ struct pqi_scsi_dev *device)
{
int rc;
struct pqi_sas_port *pqi_sas_port;
@@ -127,6 +147,7 @@ static struct pqi_sas_port *pqi_alloc_sas_port(
pqi_sas_port->port = port;
pqi_sas_port->sas_address = sas_address;
+ pqi_sas_port->device = device;
list_add_tail(&pqi_sas_port->port_list_entry,
&pqi_sas_node->port_list_head);
@@ -146,7 +167,7 @@ static void pqi_free_sas_port(struct pqi_sas_port *pqi_sas_port)
struct pqi_sas_phy *next;
list_for_each_entry_safe(pqi_sas_phy, next,
- &pqi_sas_port->phy_list_head, phy_list_entry)
+ &pqi_sas_port->phy_list_head, phy_list_entry)
pqi_free_sas_phy(pqi_sas_phy);
sas_port_delete(pqi_sas_port->port);
@@ -176,7 +197,7 @@ static void pqi_free_sas_node(struct pqi_sas_node *pqi_sas_node)
return;
list_for_each_entry_safe(pqi_sas_port, next,
- &pqi_sas_node->port_list_head, port_list_entry)
+ &pqi_sas_node->port_list_head, port_list_entry)
pqi_free_sas_port(pqi_sas_port);
kfree(pqi_sas_node);
@@ -206,13 +227,14 @@ int pqi_add_sas_host(struct Scsi_Host *shost, struct pqi_ctrl_info *ctrl_info)
struct pqi_sas_port *pqi_sas_port;
struct pqi_sas_phy *pqi_sas_phy;
- parent_dev = &shost->shost_gendev;
+ parent_dev = &shost->shost_dev;
pqi_sas_node = pqi_alloc_sas_node(parent_dev);
if (!pqi_sas_node)
return -ENOMEM;
- pqi_sas_port = pqi_alloc_sas_port(pqi_sas_node, ctrl_info->sas_address);
+ pqi_sas_port = pqi_alloc_sas_port(pqi_sas_node,
+ ctrl_info->sas_address, NULL);
if (!pqi_sas_port) {
rc = -ENODEV;
goto free_sas_node;
@@ -254,11 +276,12 @@ int pqi_add_sas_device(struct pqi_sas_node *pqi_sas_node,
struct pqi_sas_port *pqi_sas_port;
struct sas_rphy *rphy;
- pqi_sas_port = pqi_alloc_sas_port(pqi_sas_node, device->sas_address);
+ pqi_sas_port = pqi_alloc_sas_port(pqi_sas_node,
+ device->sas_address, device);
if (!pqi_sas_port)
return -ENOMEM;
- rphy = sas_end_device_alloc(pqi_sas_port->port);
+ rphy = pqi_sas_rphy_alloc(pqi_sas_port);
if (!rphy) {
rc = -ENODEV;
goto free_sas_port;
@@ -329,6 +352,128 @@ static int pqi_sas_phy_speed(struct sas_phy *phy,
return -EINVAL;
}
+#define CSMI_IOCTL_TIMEOUT 60
+#define SMP_CRC_FIELD_LENGTH 4
+
+static struct bmic_csmi_smp_passthru_buffer *
+pqi_build_csmi_smp_passthru_buffer(struct sas_rphy *rphy,
+ struct bsg_job *job)
+{
+ struct bmic_csmi_smp_passthru_buffer *smp_buf;
+ struct bmic_csmi_ioctl_header *ioctl_header;
+ struct bmic_csmi_smp_passthru *parameters;
+ u32 req_size;
+ u32 resp_size;
+
+ smp_buf = kzalloc(sizeof(*smp_buf), GFP_KERNEL);
+ if (!smp_buf)
+ return NULL;
+
+ req_size = job->request_payload.payload_len;
+ resp_size = job->reply_payload.payload_len;
+
+ ioctl_header = &smp_buf->ioctl_header;
+ put_unaligned_le32(sizeof(smp_buf->ioctl_header),
+ &ioctl_header->header_length);
+ put_unaligned_le32(CSMI_IOCTL_TIMEOUT, &ioctl_header->timeout);
+ put_unaligned_le32(CSMI_CC_SAS_SMP_PASSTHRU,
+ &ioctl_header->control_code);
+ put_unaligned_le32(sizeof(smp_buf->parameters), &ioctl_header->length);
+
+ parameters = &smp_buf->parameters;
+ parameters->phy_identifier = rphy->identify.phy_identifier;
+ parameters->port_identifier = 0;
+ parameters->connection_rate = 0;
+ put_unaligned_be64(rphy->identify.sas_address,
+ ¶meters->destination_sas_address);
+
+ if (req_size > SMP_CRC_FIELD_LENGTH)
+ req_size -= SMP_CRC_FIELD_LENGTH;
+
+ put_unaligned_le32(req_size, ¶meters->request_length);
+
+ put_unaligned_le32(resp_size, ¶meters->response_length);
+
+ sg_copy_to_buffer(job->request_payload.sg_list,
+ job->reply_payload.sg_cnt, ¶meters->request,
+ req_size);
+
+ return smp_buf;
+}
+
+static unsigned int pqi_build_sas_smp_handler_reply(
+ struct bmic_csmi_smp_passthru_buffer *smp_buf, struct bsg_job *job,
+ struct pqi_raid_error_info *error_info)
+{
+ sg_copy_from_buffer(job->reply_payload.sg_list,
+ job->reply_payload.sg_cnt, &smp_buf->parameters.response,
+ le32_to_cpu(smp_buf->parameters.response_length));
+
+ job->reply_len = le16_to_cpu(error_info->sense_data_length);
+ memcpy(job->reply, error_info->data,
+ le16_to_cpu(error_info->sense_data_length));
+
+ return job->reply_payload.payload_len -
+ get_unaligned_le32(&error_info->data_in_transferred);
+}
+
+void pqi_sas_smp_handler(struct bsg_job *job, struct Scsi_Host *shost,
+ struct sas_rphy *rphy)
+{
+ int rc;
+ struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost);
+ struct bmic_csmi_smp_passthru_buffer *smp_buf;
+ struct pqi_raid_error_info error_info;
+ unsigned int reslen = 0;
+
+ pqi_ctrl_busy(ctrl_info);
+
+ if (job->reply_payload.payload_len == 0) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ if (!rphy) {
+ rc = -EINVAL;
+ goto out;
+ }
+
+ if (rphy->identify.device_type != SAS_FANOUT_EXPANDER_DEVICE) {
+ rc = -EINVAL;
+ goto out;
+ }
+
+ if (job->request_payload.sg_cnt > 1 || job->reply_payload.sg_cnt > 1) {
+ rc = -EINVAL;
+ goto out;
+ }
+
+ if (pqi_ctrl_offline(ctrl_info)) {
+ rc = -ENXIO;
+ goto out;
+ }
+
+ if (pqi_ctrl_blocked(ctrl_info)) {
+ rc = -EBUSY;
+ goto out;
+ }
+
+ smp_buf = pqi_build_csmi_smp_passthru_buffer(rphy, job);
+ if (!smp_buf) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ rc = pqi_csmi_smp_passthru(ctrl_info, smp_buf, sizeof(*smp_buf),
+ &error_info);
+ if (rc)
+ goto out;
+
+ reslen = pqi_build_sas_smp_handler_reply(smp_buf, job, &error_info);
+out:
+ bsg_job_done(job, rc, reslen);
+ pqi_ctrl_unbusy(ctrl_info);
+}
struct sas_function_template pqi_sas_transport_functions = {
.get_linkerrors = pqi_sas_get_linkerrors,
.get_enclosure_identifier = pqi_sas_get_enclosure_identifier,
@@ -338,4 +483,5 @@ struct sas_function_template pqi_sas_transport_functions = {
.phy_setup = pqi_sas_phy_setup,
.phy_release = pqi_sas_phy_release,
.set_phy_speed = pqi_sas_phy_speed,
+ .smp_handler = pqi_sas_smp_handler,
};