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linux/drivers/scsi/mpi3mr/mpi3mr_transport.c
Arnd Bergmann 5cc2da0b60 scsi: mpi3mr: Reduce stack usage in mpi3mr_refresh_sas_ports() 
Doubling the number of PHYs also doubled the stack usage of this function,
exceeding the 32-bit limit of 1024 bytes:

drivers/scsi/mpi3mr/mpi3mr_transport.c: In function 'mpi3mr_refresh_sas_ports':
drivers/scsi/mpi3mr/mpi3mr_transport.c:1818:1: error: the frame size of 1636 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]

Since the sas_io_unit_pg0 structure is already allocated dynamically, use
the same method here. The size of the allocation can be smaller based on
the actual number of phys now, so use this as an upper bound.

Fixes: cb5b608946 ("scsi: mpi3mr: Increase maximum number of PHYs to 64 from 32")
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Cc: Sathya Prakash Veerichetty <sathya.prakash@broadcom.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20240123130754.2011469-1-arnd@kernel.org
Tested-by: John Garry <john.g.garry@oracle.com> #build only
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2024-02-26 20:33:49 -05:00

3297 lines
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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Driver for Broadcom MPI3 Storage Controllers
*
* Copyright (C) 2017-2023 Broadcom Inc.
* (mailto: mpi3mr-linuxdrv.pdl@broadcom.com)
*
*/
#include "mpi3mr.h"
/**
* mpi3mr_post_transport_req - Issue transport requests and wait
* @mrioc: Adapter instance reference
* @request: Properly populated MPI3 request
* @request_sz: Size of the MPI3 request
* @reply: Pointer to return MPI3 reply
* @reply_sz: Size of the MPI3 reply buffer
* @timeout: Timeout in seconds
* @ioc_status: Pointer to return ioc status
*
* A generic function for posting MPI3 requests from the SAS
* transport layer that uses transport command infrastructure.
* This blocks for the completion of request for timeout seconds
* and if the request times out this function faults the
* controller with proper reason code.
*
* On successful completion of the request this function returns
* appropriate ioc status from the firmware back to the caller.
*
* Return: 0 on success, non-zero on failure.
*/
static int mpi3mr_post_transport_req(struct mpi3mr_ioc *mrioc, void *request,
u16 request_sz, void *reply, u16 reply_sz, int timeout,
u16 *ioc_status)
{
int retval = 0;
mutex_lock(&mrioc->transport_cmds.mutex);
if (mrioc->transport_cmds.state & MPI3MR_CMD_PENDING) {
retval = -1;
ioc_err(mrioc, "sending transport request failed due to command in use\n");
mutex_unlock(&mrioc->transport_cmds.mutex);
goto out;
}
mrioc->transport_cmds.state = MPI3MR_CMD_PENDING;
mrioc->transport_cmds.is_waiting = 1;
mrioc->transport_cmds.callback = NULL;
mrioc->transport_cmds.ioc_status = 0;
mrioc->transport_cmds.ioc_loginfo = 0;
init_completion(&mrioc->transport_cmds.done);
dprint_cfg_info(mrioc, "posting transport request\n");
if (mrioc->logging_level & MPI3_DEBUG_TRANSPORT_INFO)
dprint_dump(request, request_sz, "transport_req");
retval = mpi3mr_admin_request_post(mrioc, request, request_sz, 1);
if (retval) {
ioc_err(mrioc, "posting transport request failed\n");
goto out_unlock;
}
wait_for_completion_timeout(&mrioc->transport_cmds.done,
(timeout * HZ));
if (!(mrioc->transport_cmds.state & MPI3MR_CMD_COMPLETE)) {
mpi3mr_check_rh_fault_ioc(mrioc,
MPI3MR_RESET_FROM_SAS_TRANSPORT_TIMEOUT);
ioc_err(mrioc, "transport request timed out\n");
retval = -1;
goto out_unlock;
}
*ioc_status = mrioc->transport_cmds.ioc_status &
MPI3_IOCSTATUS_STATUS_MASK;
if ((*ioc_status) != MPI3_IOCSTATUS_SUCCESS)
dprint_transport_err(mrioc,
"transport request returned with ioc_status(0x%04x), log_info(0x%08x)\n",
*ioc_status, mrioc->transport_cmds.ioc_loginfo);
if ((reply) && (mrioc->transport_cmds.state & MPI3MR_CMD_REPLY_VALID))
memcpy((u8 *)reply, mrioc->transport_cmds.reply, reply_sz);
out_unlock:
mrioc->transport_cmds.state = MPI3MR_CMD_NOTUSED;
mutex_unlock(&mrioc->transport_cmds.mutex);
out:
return retval;
}
/* report manufacture request structure */
struct rep_manu_request {
u8 smp_frame_type;
u8 function;
u8 reserved;
u8 request_length;
};
/* report manufacture reply structure */
struct rep_manu_reply {
u8 smp_frame_type; /* 0x41 */
u8 function; /* 0x01 */
u8 function_result;
u8 response_length;
u16 expander_change_count;
u8 reserved0[2];
u8 sas_format;
u8 reserved2[3];
u8 vendor_id[SAS_EXPANDER_VENDOR_ID_LEN];
u8 product_id[SAS_EXPANDER_PRODUCT_ID_LEN];
u8 product_rev[SAS_EXPANDER_PRODUCT_REV_LEN];
u8 component_vendor_id[SAS_EXPANDER_COMPONENT_VENDOR_ID_LEN];
u16 component_id;
u8 component_revision_id;
u8 reserved3;
u8 vendor_specific[8];
};
/**
* mpi3mr_report_manufacture - obtain SMP report_manufacture
* @mrioc: Adapter instance reference
* @sas_address: SAS address of the expander device
* @edev: SAS transport layer sas_expander_device object
* @port_id: ID of the HBA port
*
* Fills in the sas_expander_device with manufacturing info.
*
* Return: 0 for success, non-zero for failure.
*/
static int mpi3mr_report_manufacture(struct mpi3mr_ioc *mrioc,
u64 sas_address, struct sas_expander_device *edev, u8 port_id)
{
struct mpi3_smp_passthrough_request mpi_request;
struct mpi3_smp_passthrough_reply mpi_reply;
struct rep_manu_reply *manufacture_reply;
struct rep_manu_request *manufacture_request;
int rc = 0;
void *psge;
void *data_out = NULL;
dma_addr_t data_out_dma;
dma_addr_t data_in_dma;
size_t data_in_sz;
size_t data_out_sz;
u8 sgl_flags = MPI3MR_SGEFLAGS_SYSTEM_SIMPLE_END_OF_LIST;
u16 request_sz = sizeof(struct mpi3_smp_passthrough_request);
u16 reply_sz = sizeof(struct mpi3_smp_passthrough_reply);
u16 ioc_status;
u8 *tmp;
if (mrioc->reset_in_progress) {
ioc_err(mrioc, "%s: host reset in progress!\n", __func__);
return -EFAULT;
}
data_out_sz = sizeof(struct rep_manu_request);
data_in_sz = sizeof(struct rep_manu_reply);
data_out = dma_alloc_coherent(&mrioc->pdev->dev,
data_out_sz + data_in_sz, &data_out_dma, GFP_KERNEL);
if (!data_out) {
rc = -ENOMEM;
goto out;
}
data_in_dma = data_out_dma + data_out_sz;
manufacture_reply = data_out + data_out_sz;
manufacture_request = data_out;
manufacture_request->smp_frame_type = 0x40;
manufacture_request->function = 1;
manufacture_request->reserved = 0;
manufacture_request->request_length = 0;
memset(&mpi_request, 0, request_sz);
memset(&mpi_reply, 0, reply_sz);
mpi_request.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_TRANSPORT_CMDS);
mpi_request.function = MPI3_FUNCTION_SMP_PASSTHROUGH;
mpi_request.io_unit_port = (u8) port_id;
mpi_request.sas_address = cpu_to_le64(sas_address);
psge = &mpi_request.request_sge;
mpi3mr_add_sg_single(psge, sgl_flags, data_out_sz, data_out_dma);
psge = &mpi_request.response_sge;
mpi3mr_add_sg_single(psge, sgl_flags, data_in_sz, data_in_dma);
dprint_transport_info(mrioc,
"sending report manufacturer SMP request to sas_address(0x%016llx), port(%d)\n",
(unsigned long long)sas_address, port_id);
rc = mpi3mr_post_transport_req(mrioc, &mpi_request, request_sz,
&mpi_reply, reply_sz,
MPI3MR_INTADMCMD_TIMEOUT, &ioc_status);
if (rc)
goto out;
dprint_transport_info(mrioc,
"report manufacturer SMP request completed with ioc_status(0x%04x)\n",
ioc_status);
if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
rc = -EINVAL;
goto out;
}
dprint_transport_info(mrioc,
"report manufacturer - reply data transfer size(%d)\n",
le16_to_cpu(mpi_reply.response_data_length));
if (le16_to_cpu(mpi_reply.response_data_length) !=
sizeof(struct rep_manu_reply)) {
rc = -EINVAL;
goto out;
}
strscpy(edev->vendor_id, manufacture_reply->vendor_id,
SAS_EXPANDER_VENDOR_ID_LEN);
strscpy(edev->product_id, manufacture_reply->product_id,
SAS_EXPANDER_PRODUCT_ID_LEN);
strscpy(edev->product_rev, manufacture_reply->product_rev,
SAS_EXPANDER_PRODUCT_REV_LEN);
edev->level = manufacture_reply->sas_format & 1;
if (edev->level) {
strscpy(edev->component_vendor_id,
manufacture_reply->component_vendor_id,
SAS_EXPANDER_COMPONENT_VENDOR_ID_LEN);
tmp = (u8 *)&manufacture_reply->component_id;
edev->component_id = tmp[0] << 8 | tmp[1];
edev->component_revision_id =
manufacture_reply->component_revision_id;
}
out:
if (data_out)
dma_free_coherent(&mrioc->pdev->dev, data_out_sz + data_in_sz,
data_out, data_out_dma);
return rc;
}
/**
* __mpi3mr_expander_find_by_handle - expander search by handle
* @mrioc: Adapter instance reference
* @handle: Firmware device handle of the expander
*
* Context: The caller should acquire sas_node_lock
*
* This searches for expander device based on handle, then
* returns the sas_node object.
*
* Return: Expander sas_node object reference or NULL
*/
struct mpi3mr_sas_node *__mpi3mr_expander_find_by_handle(struct mpi3mr_ioc
*mrioc, u16 handle)
{
struct mpi3mr_sas_node *sas_expander, *r;
r = NULL;
list_for_each_entry(sas_expander, &mrioc->sas_expander_list, list) {
if (sas_expander->handle != handle)
continue;
r = sas_expander;
goto out;
}
out:
return r;
}
/**
* mpi3mr_is_expander_device - if device is an expander
* @device_info: Bitfield providing information about the device
*
* Return: 1 if the device is expander device, else 0.
*/
u8 mpi3mr_is_expander_device(u16 device_info)
{
if ((device_info & MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_MASK) ==
MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_EXPANDER)
return 1;
else
return 0;
}
/**
* mpi3mr_get_sas_address - retrieve sas_address for handle
* @mrioc: Adapter instance reference
* @handle: Firmware device handle
* @sas_address: Address to hold sas address
*
* This function issues device page0 read for a given device
* handle and gets the SAS address and return it back
*
* Return: 0 for success, non-zero for failure
*/
static int mpi3mr_get_sas_address(struct mpi3mr_ioc *mrioc, u16 handle,
u64 *sas_address)
{
struct mpi3_device_page0 dev_pg0;
u16 ioc_status;
struct mpi3_device0_sas_sata_format *sasinf;
*sas_address = 0;
if ((mpi3mr_cfg_get_dev_pg0(mrioc, &ioc_status, &dev_pg0,
sizeof(dev_pg0), MPI3_DEVICE_PGAD_FORM_HANDLE,
handle))) {
ioc_err(mrioc, "%s: device page0 read failed\n", __func__);
return -ENXIO;
}
if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
ioc_err(mrioc, "device page read failed for handle(0x%04x), with ioc_status(0x%04x) failure at %s:%d/%s()!\n",
handle, ioc_status, __FILE__, __LINE__, __func__);
return -ENXIO;
}
if (le16_to_cpu(dev_pg0.flags) &
MPI3_DEVICE0_FLAGS_CONTROLLER_DEV_HANDLE)
*sas_address = mrioc->sas_hba.sas_address;
else if (dev_pg0.device_form == MPI3_DEVICE_DEVFORM_SAS_SATA) {
sasinf = &dev_pg0.device_specific.sas_sata_format;
*sas_address = le64_to_cpu(sasinf->sas_address);
} else {
ioc_err(mrioc, "%s: device_form(%d) is not SAS_SATA\n",
__func__, dev_pg0.device_form);
return -ENXIO;
}
return 0;
}
/**
* __mpi3mr_get_tgtdev_by_addr - target device search
* @mrioc: Adapter instance reference
* @sas_address: SAS address of the device
* @hba_port: HBA port entry
*
* This searches for target device from sas address and hba port
* pointer then return mpi3mr_tgt_dev object.
*
* Return: Valid tget_dev or NULL
*/
static struct mpi3mr_tgt_dev *__mpi3mr_get_tgtdev_by_addr(struct mpi3mr_ioc *mrioc,
u64 sas_address, struct mpi3mr_hba_port *hba_port)
{
struct mpi3mr_tgt_dev *tgtdev;
assert_spin_locked(&mrioc->tgtdev_lock);
list_for_each_entry(tgtdev, &mrioc->tgtdev_list, list)
if ((tgtdev->dev_type == MPI3_DEVICE_DEVFORM_SAS_SATA) &&
(tgtdev->dev_spec.sas_sata_inf.sas_address == sas_address)
&& (tgtdev->dev_spec.sas_sata_inf.hba_port == hba_port))
goto found_device;
return NULL;
found_device:
mpi3mr_tgtdev_get(tgtdev);
return tgtdev;
}
/**
* mpi3mr_get_tgtdev_by_addr - target device search
* @mrioc: Adapter instance reference
* @sas_address: SAS address of the device
* @hba_port: HBA port entry
*
* This searches for target device from sas address and hba port
* pointer then return mpi3mr_tgt_dev object.
*
* Context: This function will acquire tgtdev_lock and will
* release before returning the mpi3mr_tgt_dev object.
*
* Return: Valid tget_dev or NULL
*/
static struct mpi3mr_tgt_dev *mpi3mr_get_tgtdev_by_addr(struct mpi3mr_ioc *mrioc,
u64 sas_address, struct mpi3mr_hba_port *hba_port)
{
struct mpi3mr_tgt_dev *tgtdev = NULL;
unsigned long flags;
if (!hba_port)
goto out;
spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
tgtdev = __mpi3mr_get_tgtdev_by_addr(mrioc, sas_address, hba_port);
spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
out:
return tgtdev;
}
/**
* mpi3mr_remove_device_by_sas_address - remove the device
* @mrioc: Adapter instance reference
* @sas_address: SAS address of the device
* @hba_port: HBA port entry
*
* This searches for target device using sas address and hba
* port pointer then removes it from the OS.
*
* Return: None
*/
static void mpi3mr_remove_device_by_sas_address(struct mpi3mr_ioc *mrioc,
u64 sas_address, struct mpi3mr_hba_port *hba_port)
{
struct mpi3mr_tgt_dev *tgtdev = NULL;
unsigned long flags;
u8 was_on_tgtdev_list = 0;
if (!hba_port)
return;
spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
tgtdev = __mpi3mr_get_tgtdev_by_addr(mrioc,
sas_address, hba_port);
if (tgtdev) {
if (!list_empty(&tgtdev->list)) {
list_del_init(&tgtdev->list);
was_on_tgtdev_list = 1;
mpi3mr_tgtdev_put(tgtdev);
}
}
spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
if (was_on_tgtdev_list) {
if (tgtdev->host_exposed)
mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev);
mpi3mr_tgtdev_put(tgtdev);
}
}
/**
* __mpi3mr_get_tgtdev_by_addr_and_rphy - target device search
* @mrioc: Adapter instance reference
* @sas_address: SAS address of the device
* @rphy: SAS transport layer rphy object
*
* This searches for target device from sas address and rphy
* pointer then return mpi3mr_tgt_dev object.
*
* Return: Valid tget_dev or NULL
*/
struct mpi3mr_tgt_dev *__mpi3mr_get_tgtdev_by_addr_and_rphy(
struct mpi3mr_ioc *mrioc, u64 sas_address, struct sas_rphy *rphy)
{
struct mpi3mr_tgt_dev *tgtdev;
assert_spin_locked(&mrioc->tgtdev_lock);
list_for_each_entry(tgtdev, &mrioc->tgtdev_list, list)
if ((tgtdev->dev_type == MPI3_DEVICE_DEVFORM_SAS_SATA) &&
(tgtdev->dev_spec.sas_sata_inf.sas_address == sas_address)
&& (tgtdev->dev_spec.sas_sata_inf.rphy == rphy))
goto found_device;
return NULL;
found_device:
mpi3mr_tgtdev_get(tgtdev);
return tgtdev;
}
/**
* mpi3mr_expander_find_by_sas_address - sas expander search
* @mrioc: Adapter instance reference
* @sas_address: SAS address of expander
* @hba_port: HBA port entry
*
* Return: A valid SAS expander node or NULL.
*
*/
static struct mpi3mr_sas_node *mpi3mr_expander_find_by_sas_address(
struct mpi3mr_ioc *mrioc, u64 sas_address,
struct mpi3mr_hba_port *hba_port)
{
struct mpi3mr_sas_node *sas_expander, *r = NULL;
if (!hba_port)
goto out;
list_for_each_entry(sas_expander, &mrioc->sas_expander_list, list) {
if ((sas_expander->sas_address != sas_address) ||
(sas_expander->hba_port != hba_port))
continue;
r = sas_expander;
goto out;
}
out:
return r;
}
/**
* __mpi3mr_sas_node_find_by_sas_address - sas node search
* @mrioc: Adapter instance reference
* @sas_address: SAS address of expander or sas host
* @hba_port: HBA port entry
* Context: Caller should acquire mrioc->sas_node_lock.
*
* If the SAS address indicates the device is direct attached to
* the controller (controller's SAS address) then the SAS node
* associated with the controller is returned back else the SAS
* address and hba port are used to identify the exact expander
* and the associated sas_node object is returned. If there is
* no match NULL is returned.
*
* Return: A valid SAS node or NULL.
*
*/
static struct mpi3mr_sas_node *__mpi3mr_sas_node_find_by_sas_address(
struct mpi3mr_ioc *mrioc, u64 sas_address,
struct mpi3mr_hba_port *hba_port)
{
if (mrioc->sas_hba.sas_address == sas_address)
return &mrioc->sas_hba;
return mpi3mr_expander_find_by_sas_address(mrioc, sas_address,
hba_port);
}
/**
* mpi3mr_parent_present - Is parent present for a phy
* @mrioc: Adapter instance reference
* @phy: SAS transport layer phy object
*
* Return: 0 if parent is present else non-zero
*/
static int mpi3mr_parent_present(struct mpi3mr_ioc *mrioc, struct sas_phy *phy)
{
unsigned long flags;
struct mpi3mr_hba_port *hba_port = phy->hostdata;
spin_lock_irqsave(&mrioc->sas_node_lock, flags);
if (__mpi3mr_sas_node_find_by_sas_address(mrioc,
phy->identify.sas_address,
hba_port) == NULL) {
spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
return -1;
}
spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
return 0;
}
/**
* mpi3mr_convert_phy_link_rate -
* @link_rate: link rate as defined in the MPI header
*
* Convert link_rate from mpi format into sas_transport layer
* form.
*
* Return: A valid SAS transport layer defined link rate
*/
static enum sas_linkrate mpi3mr_convert_phy_link_rate(u8 link_rate)
{
enum sas_linkrate rc;
switch (link_rate) {
case MPI3_SAS_NEG_LINK_RATE_1_5:
rc = SAS_LINK_RATE_1_5_GBPS;
break;
case MPI3_SAS_NEG_LINK_RATE_3_0:
rc = SAS_LINK_RATE_3_0_GBPS;
break;
case MPI3_SAS_NEG_LINK_RATE_6_0:
rc = SAS_LINK_RATE_6_0_GBPS;
break;
case MPI3_SAS_NEG_LINK_RATE_12_0:
rc = SAS_LINK_RATE_12_0_GBPS;
break;
case MPI3_SAS_NEG_LINK_RATE_22_5:
rc = SAS_LINK_RATE_22_5_GBPS;
break;
case MPI3_SAS_NEG_LINK_RATE_PHY_DISABLED:
rc = SAS_PHY_DISABLED;
break;
case MPI3_SAS_NEG_LINK_RATE_NEGOTIATION_FAILED:
rc = SAS_LINK_RATE_FAILED;
break;
case MPI3_SAS_NEG_LINK_RATE_PORT_SELECTOR:
rc = SAS_SATA_PORT_SELECTOR;
break;
case MPI3_SAS_NEG_LINK_RATE_SMP_RESET_IN_PROGRESS:
rc = SAS_PHY_RESET_IN_PROGRESS;
break;
case MPI3_SAS_NEG_LINK_RATE_SATA_OOB_COMPLETE:
case MPI3_SAS_NEG_LINK_RATE_UNKNOWN_LINK_RATE:
default:
rc = SAS_LINK_RATE_UNKNOWN;
break;
}
return rc;
}
/**
* mpi3mr_delete_sas_phy - Remove a single phy from port
* @mrioc: Adapter instance reference
* @mr_sas_port: Internal Port object
* @mr_sas_phy: Internal Phy object
*
* Return: None.
*/
static void mpi3mr_delete_sas_phy(struct mpi3mr_ioc *mrioc,
struct mpi3mr_sas_port *mr_sas_port,
struct mpi3mr_sas_phy *mr_sas_phy)
{
u64 sas_address = mr_sas_port->remote_identify.sas_address;
dev_info(&mr_sas_phy->phy->dev,
"remove: sas_address(0x%016llx), phy(%d)\n",
(unsigned long long) sas_address, mr_sas_phy->phy_id);
list_del(&mr_sas_phy->port_siblings);
mr_sas_port->num_phys--;
mr_sas_port->phy_mask &= ~(1 << mr_sas_phy->phy_id);
if (mr_sas_port->lowest_phy == mr_sas_phy->phy_id)
mr_sas_port->lowest_phy = ffs(mr_sas_port->phy_mask) - 1;
sas_port_delete_phy(mr_sas_port->port, mr_sas_phy->phy);
mr_sas_phy->phy_belongs_to_port = 0;
}
/**
* mpi3mr_add_sas_phy - Adding a single phy to a port
* @mrioc: Adapter instance reference
* @mr_sas_port: Internal Port object
* @mr_sas_phy: Internal Phy object
*
* Return: None.
*/
static void mpi3mr_add_sas_phy(struct mpi3mr_ioc *mrioc,
struct mpi3mr_sas_port *mr_sas_port,
struct mpi3mr_sas_phy *mr_sas_phy)
{
u64 sas_address = mr_sas_port->remote_identify.sas_address;
dev_info(&mr_sas_phy->phy->dev,
"add: sas_address(0x%016llx), phy(%d)\n", (unsigned long long)
sas_address, mr_sas_phy->phy_id);
list_add_tail(&mr_sas_phy->port_siblings, &mr_sas_port->phy_list);
mr_sas_port->num_phys++;
mr_sas_port->phy_mask |= (1 << mr_sas_phy->phy_id);
if (mr_sas_phy->phy_id < mr_sas_port->lowest_phy)
mr_sas_port->lowest_phy = ffs(mr_sas_port->phy_mask) - 1;
sas_port_add_phy(mr_sas_port->port, mr_sas_phy->phy);
mr_sas_phy->phy_belongs_to_port = 1;
}
/**
* mpi3mr_add_phy_to_an_existing_port - add phy to existing port
* @mrioc: Adapter instance reference
* @mr_sas_node: Internal sas node object (expander or host)
* @mr_sas_phy: Internal Phy object *
* @sas_address: SAS address of device/expander were phy needs
* to be added to
* @hba_port: HBA port entry
*
* Return: None.
*/
static void mpi3mr_add_phy_to_an_existing_port(struct mpi3mr_ioc *mrioc,
struct mpi3mr_sas_node *mr_sas_node, struct mpi3mr_sas_phy *mr_sas_phy,
u64 sas_address, struct mpi3mr_hba_port *hba_port)
{
struct mpi3mr_sas_port *mr_sas_port;
struct mpi3mr_sas_phy *srch_phy;
if (mr_sas_phy->phy_belongs_to_port == 1)
return;
if (!hba_port)
return;
list_for_each_entry(mr_sas_port, &mr_sas_node->sas_port_list,
port_list) {
if (mr_sas_port->remote_identify.sas_address !=
sas_address)
continue;
if (mr_sas_port->hba_port != hba_port)
continue;
list_for_each_entry(srch_phy, &mr_sas_port->phy_list,
port_siblings) {
if (srch_phy == mr_sas_phy)
return;
}
mpi3mr_add_sas_phy(mrioc, mr_sas_port, mr_sas_phy);
return;
}
}
/**
* mpi3mr_delete_sas_port - helper function to removing a port
* @mrioc: Adapter instance reference
* @mr_sas_port: Internal Port object
*
* Return: None.
*/
static void mpi3mr_delete_sas_port(struct mpi3mr_ioc *mrioc,
struct mpi3mr_sas_port *mr_sas_port)
{
u64 sas_address = mr_sas_port->remote_identify.sas_address;
struct mpi3mr_hba_port *hba_port = mr_sas_port->hba_port;
enum sas_device_type device_type =
mr_sas_port->remote_identify.device_type;
dev_info(&mr_sas_port->port->dev,
"remove: sas_address(0x%016llx)\n",
(unsigned long long) sas_address);
if (device_type == SAS_END_DEVICE)
mpi3mr_remove_device_by_sas_address(mrioc, sas_address,
hba_port);
else if (device_type == SAS_EDGE_EXPANDER_DEVICE ||
device_type == SAS_FANOUT_EXPANDER_DEVICE)
mpi3mr_expander_remove(mrioc, sas_address, hba_port);
}
/**
* mpi3mr_del_phy_from_an_existing_port - del phy from a port
* @mrioc: Adapter instance reference
* @mr_sas_node: Internal sas node object (expander or host)
* @mr_sas_phy: Internal Phy object
*
* Return: None.
*/
static void mpi3mr_del_phy_from_an_existing_port(struct mpi3mr_ioc *mrioc,
struct mpi3mr_sas_node *mr_sas_node, struct mpi3mr_sas_phy *mr_sas_phy)
{
struct mpi3mr_sas_port *mr_sas_port, *next;
struct mpi3mr_sas_phy *srch_phy;
if (mr_sas_phy->phy_belongs_to_port == 0)
return;
list_for_each_entry_safe(mr_sas_port, next, &mr_sas_node->sas_port_list,
port_list) {
list_for_each_entry(srch_phy, &mr_sas_port->phy_list,
port_siblings) {
if (srch_phy != mr_sas_phy)
continue;
if ((mr_sas_port->num_phys == 1) &&
!mrioc->reset_in_progress)
mpi3mr_delete_sas_port(mrioc, mr_sas_port);
else
mpi3mr_delete_sas_phy(mrioc, mr_sas_port,
mr_sas_phy);
return;
}
}
}
/**
* mpi3mr_sas_port_sanity_check - sanity check while adding port
* @mrioc: Adapter instance reference
* @mr_sas_node: Internal sas node object (expander or host)
* @sas_address: SAS address of device/expander
* @hba_port: HBA port entry
*
* Verifies whether the Phys attached to a device with the given
* SAS address already belongs to an existing sas port if so
* will remove those phys from the sas port
*
* Return: None.
*/
static void mpi3mr_sas_port_sanity_check(struct mpi3mr_ioc *mrioc,
struct mpi3mr_sas_node *mr_sas_node, u64 sas_address,
struct mpi3mr_hba_port *hba_port)
{
int i;
for (i = 0; i < mr_sas_node->num_phys; i++) {
if ((mr_sas_node->phy[i].remote_identify.sas_address !=
sas_address) || (mr_sas_node->phy[i].hba_port != hba_port))
continue;
if (mr_sas_node->phy[i].phy_belongs_to_port == 1)
mpi3mr_del_phy_from_an_existing_port(mrioc,
mr_sas_node, &mr_sas_node->phy[i]);
}
}
/**
* mpi3mr_set_identify - set identify for phys and end devices
* @mrioc: Adapter instance reference
* @handle: Firmware device handle
* @identify: SAS transport layer's identify info
*
* Populates sas identify info for a specific device.
*
* Return: 0 for success, non-zero for failure.
*/
static int mpi3mr_set_identify(struct mpi3mr_ioc *mrioc, u16 handle,
struct sas_identify *identify)
{
struct mpi3_device_page0 device_pg0;
struct mpi3_device0_sas_sata_format *sasinf;
u16 device_info;
u16 ioc_status;
if (mrioc->reset_in_progress) {
ioc_err(mrioc, "%s: host reset in progress!\n", __func__);
return -EFAULT;
}
if ((mpi3mr_cfg_get_dev_pg0(mrioc, &ioc_status, &device_pg0,
sizeof(device_pg0), MPI3_DEVICE_PGAD_FORM_HANDLE, handle))) {
ioc_err(mrioc, "%s: device page0 read failed\n", __func__);
return -ENXIO;
}
if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
ioc_err(mrioc, "device page read failed for handle(0x%04x), with ioc_status(0x%04x) failure at %s:%d/%s()!\n",
handle, ioc_status, __FILE__, __LINE__, __func__);
return -EIO;
}
memset(identify, 0, sizeof(struct sas_identify));
sasinf = &device_pg0.device_specific.sas_sata_format;
device_info = le16_to_cpu(sasinf->device_info);
/* sas_address */
identify->sas_address = le64_to_cpu(sasinf->sas_address);
/* phy number of the parent device this device is linked to */
identify->phy_identifier = sasinf->phy_num;
/* device_type */
switch (device_info & MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_MASK) {
case MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_NO_DEVICE:
identify->device_type = SAS_PHY_UNUSED;
break;
case MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_END_DEVICE:
identify->device_type = SAS_END_DEVICE;
break;
case MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_EXPANDER:
identify->device_type = SAS_EDGE_EXPANDER_DEVICE;
break;
}
/* initiator_port_protocols */
if (device_info & MPI3_SAS_DEVICE_INFO_SSP_INITIATOR)
identify->initiator_port_protocols |= SAS_PROTOCOL_SSP;
/* MPI3.0 doesn't have define for SATA INIT so setting both here*/
if (device_info & MPI3_SAS_DEVICE_INFO_STP_INITIATOR)
identify->initiator_port_protocols |= (SAS_PROTOCOL_STP |
SAS_PROTOCOL_SATA);
if (device_info & MPI3_SAS_DEVICE_INFO_SMP_INITIATOR)
identify->initiator_port_protocols |= SAS_PROTOCOL_SMP;
/* target_port_protocols */
if (device_info & MPI3_SAS_DEVICE_INFO_SSP_TARGET)
identify->target_port_protocols |= SAS_PROTOCOL_SSP;
/* MPI3.0 doesn't have define for STP Target so setting both here*/
if (device_info & MPI3_SAS_DEVICE_INFO_STP_SATA_TARGET)
identify->target_port_protocols |= (SAS_PROTOCOL_STP |
SAS_PROTOCOL_SATA);
if (device_info & MPI3_SAS_DEVICE_INFO_SMP_TARGET)
identify->target_port_protocols |= SAS_PROTOCOL_SMP;
return 0;
}
/**
* mpi3mr_add_host_phy - report sas_host phy to SAS transport
* @mrioc: Adapter instance reference
* @mr_sas_phy: Internal Phy object
* @phy_pg0: SAS phy page 0
* @parent_dev: Prent device class object
*
* Return: 0 for success, non-zero for failure.
*/
static int mpi3mr_add_host_phy(struct mpi3mr_ioc *mrioc,
struct mpi3mr_sas_phy *mr_sas_phy, struct mpi3_sas_phy_page0 phy_pg0,
struct device *parent_dev)
{
struct sas_phy *phy;
int phy_index = mr_sas_phy->phy_id;
INIT_LIST_HEAD(&mr_sas_phy->port_siblings);
phy = sas_phy_alloc(parent_dev, phy_index);
if (!phy) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return -1;
}
if ((mpi3mr_set_identify(mrioc, mr_sas_phy->handle,
&mr_sas_phy->identify))) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
sas_phy_free(phy);
return -1;
}
phy->identify = mr_sas_phy->identify;
mr_sas_phy->attached_handle = le16_to_cpu(phy_pg0.attached_dev_handle);
if (mr_sas_phy->attached_handle)
mpi3mr_set_identify(mrioc, mr_sas_phy->attached_handle,
&mr_sas_phy->remote_identify);
phy->identify.phy_identifier = mr_sas_phy->phy_id;
phy->negotiated_linkrate = mpi3mr_convert_phy_link_rate(
(phy_pg0.negotiated_link_rate &
MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK) >>
MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT);
phy->minimum_linkrate_hw = mpi3mr_convert_phy_link_rate(
phy_pg0.hw_link_rate & MPI3_SAS_HWRATE_MIN_RATE_MASK);
phy->maximum_linkrate_hw = mpi3mr_convert_phy_link_rate(
phy_pg0.hw_link_rate >> 4);
phy->minimum_linkrate = mpi3mr_convert_phy_link_rate(
phy_pg0.programmed_link_rate & MPI3_SAS_PRATE_MIN_RATE_MASK);
phy->maximum_linkrate = mpi3mr_convert_phy_link_rate(
phy_pg0.programmed_link_rate >> 4);
phy->hostdata = mr_sas_phy->hba_port;
if ((sas_phy_add(phy))) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
sas_phy_free(phy);
return -1;
}
if ((mrioc->logging_level & MPI3_DEBUG_TRANSPORT_INFO))
dev_info(&phy->dev,
"add: handle(0x%04x), sas_address(0x%016llx)\n"
"\tattached_handle(0x%04x), sas_address(0x%016llx)\n",
mr_sas_phy->handle, (unsigned long long)
mr_sas_phy->identify.sas_address,
mr_sas_phy->attached_handle,
(unsigned long long)
mr_sas_phy->remote_identify.sas_address);
mr_sas_phy->phy = phy;
return 0;
}
/**
* mpi3mr_add_expander_phy - report expander phy to transport
* @mrioc: Adapter instance reference
* @mr_sas_phy: Internal Phy object
* @expander_pg1: SAS Expander page 1
* @parent_dev: Parent device class object
*
* Return: 0 for success, non-zero for failure.
*/
static int mpi3mr_add_expander_phy(struct mpi3mr_ioc *mrioc,
struct mpi3mr_sas_phy *mr_sas_phy,
struct mpi3_sas_expander_page1 expander_pg1,
struct device *parent_dev)
{
struct sas_phy *phy;
int phy_index = mr_sas_phy->phy_id;
INIT_LIST_HEAD(&mr_sas_phy->port_siblings);
phy = sas_phy_alloc(parent_dev, phy_index);
if (!phy) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return -1;
}
if ((mpi3mr_set_identify(mrioc, mr_sas_phy->handle,
&mr_sas_phy->identify))) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
sas_phy_free(phy);
return -1;
}
phy->identify = mr_sas_phy->identify;
mr_sas_phy->attached_handle =
le16_to_cpu(expander_pg1.attached_dev_handle);
if (mr_sas_phy->attached_handle)
mpi3mr_set_identify(mrioc, mr_sas_phy->attached_handle,
&mr_sas_phy->remote_identify);
phy->identify.phy_identifier = mr_sas_phy->phy_id;
phy->negotiated_linkrate = mpi3mr_convert_phy_link_rate(
(expander_pg1.negotiated_link_rate &
MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK) >>
MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT);
phy->minimum_linkrate_hw = mpi3mr_convert_phy_link_rate(
expander_pg1.hw_link_rate & MPI3_SAS_HWRATE_MIN_RATE_MASK);
phy->maximum_linkrate_hw = mpi3mr_convert_phy_link_rate(
expander_pg1.hw_link_rate >> 4);
phy->minimum_linkrate = mpi3mr_convert_phy_link_rate(
expander_pg1.programmed_link_rate & MPI3_SAS_PRATE_MIN_RATE_MASK);
phy->maximum_linkrate = mpi3mr_convert_phy_link_rate(
expander_pg1.programmed_link_rate >> 4);
phy->hostdata = mr_sas_phy->hba_port;
if ((sas_phy_add(phy))) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
sas_phy_free(phy);
return -1;
}
if ((mrioc->logging_level & MPI3_DEBUG_TRANSPORT_INFO))
dev_info(&phy->dev,
"add: handle(0x%04x), sas_address(0x%016llx)\n"
"\tattached_handle(0x%04x), sas_address(0x%016llx)\n",
mr_sas_phy->handle, (unsigned long long)
mr_sas_phy->identify.sas_address,
mr_sas_phy->attached_handle,
(unsigned long long)
mr_sas_phy->remote_identify.sas_address);
mr_sas_phy->phy = phy;
return 0;
}
/**
* mpi3mr_alloc_hba_port - alloc hba port object
* @mrioc: Adapter instance reference
* @port_id: Port number
*
* Alloc memory for hba port object.
*/
static struct mpi3mr_hba_port *
mpi3mr_alloc_hba_port(struct mpi3mr_ioc *mrioc, u16 port_id)
{
struct mpi3mr_hba_port *hba_port;
hba_port = kzalloc(sizeof(struct mpi3mr_hba_port),
GFP_KERNEL);
if (!hba_port)
return NULL;
hba_port->port_id = port_id;
ioc_info(mrioc, "hba_port entry: %p, port: %d is added to hba_port list\n",
hba_port, hba_port->port_id);
list_add_tail(&hba_port->list, &mrioc->hba_port_table_list);
return hba_port;
}
/**
* mpi3mr_get_hba_port_by_id - find hba port by id
* @mrioc: Adapter instance reference
* @port_id - Port ID to search
*
* Return: mpi3mr_hba_port reference for the matched port
*/
struct mpi3mr_hba_port *mpi3mr_get_hba_port_by_id(struct mpi3mr_ioc *mrioc,
u8 port_id)
{
struct mpi3mr_hba_port *port, *port_next;
list_for_each_entry_safe(port, port_next,
&mrioc->hba_port_table_list, list) {
if (port->port_id != port_id)
continue;
if (port->flags & MPI3MR_HBA_PORT_FLAG_DIRTY)
continue;
return port;
}
return NULL;
}
/**
* mpi3mr_update_links - refreshing SAS phy link changes
* @mrioc: Adapter instance reference
* @sas_address_parent: SAS address of parent expander or host
* @handle: Firmware device handle of attached device
* @phy_number: Phy number
* @link_rate: New link rate
* @hba_port: HBA port entry
*
* Return: None.
*/
void mpi3mr_update_links(struct mpi3mr_ioc *mrioc,
u64 sas_address_parent, u16 handle, u8 phy_number, u8 link_rate,
struct mpi3mr_hba_port *hba_port)
{
unsigned long flags;
struct mpi3mr_sas_node *mr_sas_node;
struct mpi3mr_sas_phy *mr_sas_phy;
if (mrioc->reset_in_progress)
return;
spin_lock_irqsave(&mrioc->sas_node_lock, flags);
mr_sas_node = __mpi3mr_sas_node_find_by_sas_address(mrioc,
sas_address_parent, hba_port);
if (!mr_sas_node) {
spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
return;
}
mr_sas_phy = &mr_sas_node->phy[phy_number];
mr_sas_phy->attached_handle = handle;
spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
if (handle && (link_rate >= MPI3_SAS_NEG_LINK_RATE_1_5)) {
mpi3mr_set_identify(mrioc, handle,
&mr_sas_phy->remote_identify);
mpi3mr_add_phy_to_an_existing_port(mrioc, mr_sas_node,
mr_sas_phy, mr_sas_phy->remote_identify.sas_address,
hba_port);
} else
memset(&mr_sas_phy->remote_identify, 0, sizeof(struct
sas_identify));
if (mr_sas_phy->phy)
mr_sas_phy->phy->negotiated_linkrate =
mpi3mr_convert_phy_link_rate(link_rate);
if ((mrioc->logging_level & MPI3_DEBUG_TRANSPORT_INFO))
dev_info(&mr_sas_phy->phy->dev,
"refresh: parent sas_address(0x%016llx),\n"
"\tlink_rate(0x%02x), phy(%d)\n"
"\tattached_handle(0x%04x), sas_address(0x%016llx)\n",
(unsigned long long)sas_address_parent,
link_rate, phy_number, handle, (unsigned long long)
mr_sas_phy->remote_identify.sas_address);
}
/**
* mpi3mr_sas_host_refresh - refreshing sas host object contents
* @mrioc: Adapter instance reference
*
* This function refreshes the controllers phy information and
* updates the SAS transport layer with updated information,
* this is executed for each device addition or device info
* change events
*
* Return: None.
*/
void mpi3mr_sas_host_refresh(struct mpi3mr_ioc *mrioc)
{
int i;
u8 link_rate;
u16 sz, port_id, attached_handle;
struct mpi3_sas_io_unit_page0 *sas_io_unit_pg0 = NULL;
dprint_transport_info(mrioc,
"updating handles for sas_host(0x%016llx)\n",
(unsigned long long)mrioc->sas_hba.sas_address);
sz = offsetof(struct mpi3_sas_io_unit_page0, phy_data) +
(mrioc->sas_hba.num_phys *
sizeof(struct mpi3_sas_io_unit0_phy_data));
sas_io_unit_pg0 = kzalloc(sz, GFP_KERNEL);
if (!sas_io_unit_pg0)
return;
if (mpi3mr_cfg_get_sas_io_unit_pg0(mrioc, sas_io_unit_pg0, sz)) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
mrioc->sas_hba.handle = 0;
for (i = 0; i < mrioc->sas_hba.num_phys; i++) {
if (sas_io_unit_pg0->phy_data[i].phy_flags &
(MPI3_SASIOUNIT0_PHYFLAGS_HOST_PHY |
MPI3_SASIOUNIT0_PHYFLAGS_VIRTUAL_PHY))
continue;
link_rate =
sas_io_unit_pg0->phy_data[i].negotiated_link_rate >> 4;
if (!mrioc->sas_hba.handle)
mrioc->sas_hba.handle = le16_to_cpu(
sas_io_unit_pg0->phy_data[i].controller_dev_handle);
port_id = sas_io_unit_pg0->phy_data[i].io_unit_port;
if (!(mpi3mr_get_hba_port_by_id(mrioc, port_id)))
if (!mpi3mr_alloc_hba_port(mrioc, port_id))
goto out;
mrioc->sas_hba.phy[i].handle = mrioc->sas_hba.handle;
attached_handle = le16_to_cpu(
sas_io_unit_pg0->phy_data[i].attached_dev_handle);
if (attached_handle && link_rate < MPI3_SAS_NEG_LINK_RATE_1_5)
link_rate = MPI3_SAS_NEG_LINK_RATE_1_5;
mrioc->sas_hba.phy[i].hba_port =
mpi3mr_get_hba_port_by_id(mrioc, port_id);
mpi3mr_update_links(mrioc, mrioc->sas_hba.sas_address,
attached_handle, i, link_rate,
mrioc->sas_hba.phy[i].hba_port);
}
out:
kfree(sas_io_unit_pg0);
}
/**
* mpi3mr_sas_host_add - create sas host object
* @mrioc: Adapter instance reference
*
* This function creates the controllers phy information and
* updates the SAS transport layer with updated information,
* this is executed for first device addition or device info
* change event.
*
* Return: None.
*/
void mpi3mr_sas_host_add(struct mpi3mr_ioc *mrioc)
{
int i;
u16 sz, num_phys = 1, port_id, ioc_status;
struct mpi3_sas_io_unit_page0 *sas_io_unit_pg0 = NULL;
struct mpi3_sas_phy_page0 phy_pg0;
struct mpi3_device_page0 dev_pg0;
struct mpi3_enclosure_page0 encl_pg0;
struct mpi3_device0_sas_sata_format *sasinf;
sz = offsetof(struct mpi3_sas_io_unit_page0, phy_data) +
(num_phys * sizeof(struct mpi3_sas_io_unit0_phy_data));
sas_io_unit_pg0 = kzalloc(sz, GFP_KERNEL);
if (!sas_io_unit_pg0)
return;
if (mpi3mr_cfg_get_sas_io_unit_pg0(mrioc, sas_io_unit_pg0, sz)) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
num_phys = sas_io_unit_pg0->num_phys;
kfree(sas_io_unit_pg0);
mrioc->sas_hba.host_node = 1;
INIT_LIST_HEAD(&mrioc->sas_hba.sas_port_list);
mrioc->sas_hba.parent_dev = &mrioc->shost->shost_gendev;
mrioc->sas_hba.phy = kcalloc(num_phys,
sizeof(struct mpi3mr_sas_phy), GFP_KERNEL);
if (!mrioc->sas_hba.phy)
return;
mrioc->sas_hba.num_phys = num_phys;
sz = offsetof(struct mpi3_sas_io_unit_page0, phy_data) +
(num_phys * sizeof(struct mpi3_sas_io_unit0_phy_data));
sas_io_unit_pg0 = kzalloc(sz, GFP_KERNEL);
if (!sas_io_unit_pg0)
return;
if (mpi3mr_cfg_get_sas_io_unit_pg0(mrioc, sas_io_unit_pg0, sz)) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
mrioc->sas_hba.handle = 0;
for (i = 0; i < mrioc->sas_hba.num_phys; i++) {
if (sas_io_unit_pg0->phy_data[i].phy_flags &
(MPI3_SASIOUNIT0_PHYFLAGS_HOST_PHY |
MPI3_SASIOUNIT0_PHYFLAGS_VIRTUAL_PHY))
continue;
if (mpi3mr_cfg_get_sas_phy_pg0(mrioc, &ioc_status, &phy_pg0,
sizeof(struct mpi3_sas_phy_page0),
MPI3_SAS_PHY_PGAD_FORM_PHY_NUMBER, i)) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
if (!mrioc->sas_hba.handle)
mrioc->sas_hba.handle = le16_to_cpu(
sas_io_unit_pg0->phy_data[i].controller_dev_handle);
port_id = sas_io_unit_pg0->phy_data[i].io_unit_port;
if (!(mpi3mr_get_hba_port_by_id(mrioc, port_id)))
if (!mpi3mr_alloc_hba_port(mrioc, port_id))
goto out;
mrioc->sas_hba.phy[i].handle = mrioc->sas_hba.handle;
mrioc->sas_hba.phy[i].phy_id = i;
mrioc->sas_hba.phy[i].hba_port =
mpi3mr_get_hba_port_by_id(mrioc, port_id);
mpi3mr_add_host_phy(mrioc, &mrioc->sas_hba.phy[i],
phy_pg0, mrioc->sas_hba.parent_dev);
}
if ((mpi3mr_cfg_get_dev_pg0(mrioc, &ioc_status, &dev_pg0,
sizeof(dev_pg0), MPI3_DEVICE_PGAD_FORM_HANDLE,
mrioc->sas_hba.handle))) {
ioc_err(mrioc, "%s: device page0 read failed\n", __func__);
goto out;
}
if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
ioc_err(mrioc, "device page read failed for handle(0x%04x), with ioc_status(0x%04x) failure at %s:%d/%s()!\n",
mrioc->sas_hba.handle, ioc_status, __FILE__, __LINE__,
__func__);
goto out;
}
mrioc->sas_hba.enclosure_handle =
le16_to_cpu(dev_pg0.enclosure_handle);
sasinf = &dev_pg0.device_specific.sas_sata_format;
mrioc->sas_hba.sas_address =
le64_to_cpu(sasinf->sas_address);
ioc_info(mrioc,
"host_add: handle(0x%04x), sas_addr(0x%016llx), phys(%d)\n",
mrioc->sas_hba.handle,
(unsigned long long) mrioc->sas_hba.sas_address,
mrioc->sas_hba.num_phys);
if (mrioc->sas_hba.enclosure_handle) {
if (!(mpi3mr_cfg_get_enclosure_pg0(mrioc, &ioc_status,
&encl_pg0, sizeof(encl_pg0),
MPI3_ENCLOS_PGAD_FORM_HANDLE,
mrioc->sas_hba.enclosure_handle)) &&
(ioc_status == MPI3_IOCSTATUS_SUCCESS))
mrioc->sas_hba.enclosure_logical_id =
le64_to_cpu(encl_pg0.enclosure_logical_id);
}
out:
kfree(sas_io_unit_pg0);
}
/**
* mpi3mr_sas_port_add - Expose the SAS device to the SAS TL
* @mrioc: Adapter instance reference
* @handle: Firmware device handle of the attached device
* @sas_address_parent: sas address of parent expander or host
* @hba_port: HBA port entry
*
* This function creates a new sas port object for the given end
* device matching sas address and hba_port and adds it to the
* sas_node's sas_port_list and expose the attached sas device
* to the SAS transport layer through sas_rphy_add.
*
* Returns a valid mpi3mr_sas_port reference or NULL.
*/
static struct mpi3mr_sas_port *mpi3mr_sas_port_add(struct mpi3mr_ioc *mrioc,
u16 handle, u64 sas_address_parent, struct mpi3mr_hba_port *hba_port)
{
struct mpi3mr_sas_phy *mr_sas_phy, *next;
struct mpi3mr_sas_port *mr_sas_port;
unsigned long flags;
struct mpi3mr_sas_node *mr_sas_node;
struct sas_rphy *rphy;
struct mpi3mr_tgt_dev *tgtdev = NULL;
int i;
struct sas_port *port;
if (!hba_port) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return NULL;
}
mr_sas_port = kzalloc(sizeof(struct mpi3mr_sas_port), GFP_KERNEL);
if (!mr_sas_port)
return NULL;
INIT_LIST_HEAD(&mr_sas_port->port_list);
INIT_LIST_HEAD(&mr_sas_port->phy_list);
spin_lock_irqsave(&mrioc->sas_node_lock, flags);
mr_sas_node = __mpi3mr_sas_node_find_by_sas_address(mrioc,
sas_address_parent, hba_port);
spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
if (!mr_sas_node) {
ioc_err(mrioc, "%s:could not find parent sas_address(0x%016llx)!\n",
__func__, (unsigned long long)sas_address_parent);
goto out_fail;
}
if ((mpi3mr_set_identify(mrioc, handle,
&mr_sas_port->remote_identify))) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out_fail;
}
if (mr_sas_port->remote_identify.device_type == SAS_PHY_UNUSED) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out_fail;
}
mr_sas_port->hba_port = hba_port;
mpi3mr_sas_port_sanity_check(mrioc, mr_sas_node,
mr_sas_port->remote_identify.sas_address, hba_port);
for (i = 0; i < mr_sas_node->num_phys; i++) {
if ((mr_sas_node->phy[i].remote_identify.sas_address !=
mr_sas_port->remote_identify.sas_address) ||
(mr_sas_node->phy[i].hba_port != hba_port))
continue;
list_add_tail(&mr_sas_node->phy[i].port_siblings,
&mr_sas_port->phy_list);
mr_sas_port->num_phys++;
mr_sas_port->phy_mask |= (1 << i);
}
if (!mr_sas_port->num_phys) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out_fail;
}
mr_sas_port->lowest_phy = ffs(mr_sas_port->phy_mask) - 1;
if (mr_sas_port->remote_identify.device_type == SAS_END_DEVICE) {
tgtdev = mpi3mr_get_tgtdev_by_addr(mrioc,
mr_sas_port->remote_identify.sas_address,
mr_sas_port->hba_port);
if (!tgtdev) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out_fail;
}
tgtdev->dev_spec.sas_sata_inf.pend_sas_rphy_add = 1;
}
if (!mr_sas_node->parent_dev) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out_fail;
}
port = sas_port_alloc_num(mr_sas_node->parent_dev);
if ((sas_port_add(port))) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out_fail;
}
list_for_each_entry(mr_sas_phy, &mr_sas_port->phy_list,
port_siblings) {
if ((mrioc->logging_level & MPI3_DEBUG_TRANSPORT_INFO))
dev_info(&port->dev,
"add: handle(0x%04x), sas_address(0x%016llx), phy(%d)\n",
handle, (unsigned long long)
mr_sas_port->remote_identify.sas_address,
mr_sas_phy->phy_id);
sas_port_add_phy(port, mr_sas_phy->phy);
mr_sas_phy->phy_belongs_to_port = 1;
mr_sas_phy->hba_port = hba_port;
}
mr_sas_port->port = port;
if (mr_sas_port->remote_identify.device_type == SAS_END_DEVICE) {
rphy = sas_end_device_alloc(port);
tgtdev->dev_spec.sas_sata_inf.rphy = rphy;
} else {
rphy = sas_expander_alloc(port,
mr_sas_port->remote_identify.device_type);
}
rphy->identify = mr_sas_port->remote_identify;
if (mrioc->current_event)
mrioc->current_event->pending_at_sml = 1;
if ((sas_rphy_add(rphy))) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
}
if (mr_sas_port->remote_identify.device_type == SAS_END_DEVICE) {
tgtdev->dev_spec.sas_sata_inf.pend_sas_rphy_add = 0;
tgtdev->dev_spec.sas_sata_inf.sas_transport_attached = 1;
mpi3mr_tgtdev_put(tgtdev);
}
dev_info(&rphy->dev,
"%s: added: handle(0x%04x), sas_address(0x%016llx)\n",
__func__, handle, (unsigned long long)
mr_sas_port->remote_identify.sas_address);
mr_sas_port->rphy = rphy;
spin_lock_irqsave(&mrioc->sas_node_lock, flags);
list_add_tail(&mr_sas_port->port_list, &mr_sas_node->sas_port_list);
spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
if (mrioc->current_event) {
mrioc->current_event->pending_at_sml = 0;
if (mrioc->current_event->discard)
mpi3mr_print_device_event_notice(mrioc, true);
}
/* fill in report manufacture */
if (mr_sas_port->remote_identify.device_type ==
SAS_EDGE_EXPANDER_DEVICE ||
mr_sas_port->remote_identify.device_type ==
SAS_FANOUT_EXPANDER_DEVICE)
mpi3mr_report_manufacture(mrioc,
mr_sas_port->remote_identify.sas_address,
rphy_to_expander_device(rphy), hba_port->port_id);
return mr_sas_port;
out_fail:
list_for_each_entry_safe(mr_sas_phy, next, &mr_sas_port->phy_list,
port_siblings)
list_del(&mr_sas_phy->port_siblings);
kfree(mr_sas_port);
return NULL;
}
/**
* mpi3mr_sas_port_remove - remove port from the list
* @mrioc: Adapter instance reference
* @sas_address: SAS address of attached device
* @sas_address_parent: SAS address of parent expander or host
* @hba_port: HBA port entry
*
* Removing object and freeing associated memory from the
* sas_port_list.
*
* Return: None
*/
static void mpi3mr_sas_port_remove(struct mpi3mr_ioc *mrioc, u64 sas_address,
u64 sas_address_parent, struct mpi3mr_hba_port *hba_port)
{
int i;
unsigned long flags;
struct mpi3mr_sas_port *mr_sas_port, *next;
struct mpi3mr_sas_node *mr_sas_node;
u8 found = 0;
struct mpi3mr_sas_phy *mr_sas_phy, *next_phy;
struct mpi3mr_hba_port *srch_port, *hba_port_next = NULL;
if (!hba_port)
return;
spin_lock_irqsave(&mrioc->sas_node_lock, flags);
mr_sas_node = __mpi3mr_sas_node_find_by_sas_address(mrioc,
sas_address_parent, hba_port);
if (!mr_sas_node) {
spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
return;
}
list_for_each_entry_safe(mr_sas_port, next, &mr_sas_node->sas_port_list,
port_list) {
if (mr_sas_port->remote_identify.sas_address != sas_address)
continue;
if (mr_sas_port->hba_port != hba_port)
continue;
found = 1;
list_del(&mr_sas_port->port_list);
goto out;
}
out:
if (!found) {
spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
return;
}
if (mr_sas_node->host_node) {
list_for_each_entry_safe(srch_port, hba_port_next,
&mrioc->hba_port_table_list, list) {
if (srch_port != hba_port)
continue;
ioc_info(mrioc,
"removing hba_port entry: %p port: %d from hba_port list\n",
srch_port, srch_port->port_id);
list_del(&hba_port->list);
kfree(hba_port);
break;
}
}
for (i = 0; i < mr_sas_node->num_phys; i++) {
if (mr_sas_node->phy[i].remote_identify.sas_address ==
sas_address)
memset(&mr_sas_node->phy[i].remote_identify, 0,
sizeof(struct sas_identify));
}
spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
if (mrioc->current_event)
mrioc->current_event->pending_at_sml = 1;
list_for_each_entry_safe(mr_sas_phy, next_phy,
&mr_sas_port->phy_list, port_siblings) {
if ((!mrioc->stop_drv_processing) &&
(mrioc->logging_level & MPI3_DEBUG_TRANSPORT_INFO))
dev_info(&mr_sas_port->port->dev,
"remove: sas_address(0x%016llx), phy(%d)\n",
(unsigned long long)
mr_sas_port->remote_identify.sas_address,
mr_sas_phy->phy_id);
mr_sas_phy->phy_belongs_to_port = 0;
if (!mrioc->stop_drv_processing)
sas_port_delete_phy(mr_sas_port->port,
mr_sas_phy->phy);
list_del(&mr_sas_phy->port_siblings);
}
if (!mrioc->stop_drv_processing)
sas_port_delete(mr_sas_port->port);
ioc_info(mrioc, "%s: removed sas_address(0x%016llx)\n",
__func__, (unsigned long long)sas_address);
if (mrioc->current_event) {
mrioc->current_event->pending_at_sml = 0;
if (mrioc->current_event->discard)
mpi3mr_print_device_event_notice(mrioc, false);
}
kfree(mr_sas_port);
}
/**
* struct host_port - host port details
* @sas_address: SAS Address of the attached device
* @phy_mask: phy mask of host port
* @handle: Device Handle of attached device
* @iounit_port_id: port ID
* @used: host port is already matched with sas port from sas_port_list
* @lowest_phy: lowest phy ID of host port
*/
struct host_port {
u64 sas_address;
u64 phy_mask;
u16 handle;
u8 iounit_port_id;
u8 used;
u8 lowest_phy;
};
/**
* mpi3mr_update_mr_sas_port - update sas port objects during reset
* @mrioc: Adapter instance reference
* @h_port: host_port object
* @mr_sas_port: sas_port objects which needs to be updated
*
* Update the port ID of sas port object. Also add the phys if new phys got
* added to current sas port and remove the phys if some phys are moved
* out of the current sas port.
*
* Return: Nothing.
*/
static void
mpi3mr_update_mr_sas_port(struct mpi3mr_ioc *mrioc, struct host_port *h_port,
struct mpi3mr_sas_port *mr_sas_port)
{
struct mpi3mr_sas_phy *mr_sas_phy;
u64 phy_mask_xor;
u64 phys_to_be_added, phys_to_be_removed;
int i;
h_port->used = 1;
mr_sas_port->marked_responding = 1;
dev_info(&mr_sas_port->port->dev,
"sas_address(0x%016llx), old: port_id %d phy_mask 0x%llx, new: port_id %d phy_mask:0x%llx\n",
mr_sas_port->remote_identify.sas_address,
mr_sas_port->hba_port->port_id, mr_sas_port->phy_mask,
h_port->iounit_port_id, h_port->phy_mask);
mr_sas_port->hba_port->port_id = h_port->iounit_port_id;
mr_sas_port->hba_port->flags &= ~MPI3MR_HBA_PORT_FLAG_DIRTY;
/* Get the newly added phys bit map & removed phys bit map */
phy_mask_xor = mr_sas_port->phy_mask ^ h_port->phy_mask;
phys_to_be_added = h_port->phy_mask & phy_mask_xor;
phys_to_be_removed = mr_sas_port->phy_mask & phy_mask_xor;
/*
* Register these new phys to current mr_sas_port's port.
* if these phys are previously registered with another port
* then delete these phys from that port first.
*/
for_each_set_bit(i, (ulong *) &phys_to_be_added, BITS_PER_TYPE(u64)) {
mr_sas_phy = &mrioc->sas_hba.phy[i];
if (mr_sas_phy->phy_belongs_to_port)
mpi3mr_del_phy_from_an_existing_port(mrioc,
&mrioc->sas_hba, mr_sas_phy);
mpi3mr_add_phy_to_an_existing_port(mrioc,
&mrioc->sas_hba, mr_sas_phy,
mr_sas_port->remote_identify.sas_address,
mr_sas_port->hba_port);
}
/* Delete the phys which are not part of current mr_sas_port's port. */
for_each_set_bit(i, (ulong *) &phys_to_be_removed, BITS_PER_TYPE(u64)) {
mr_sas_phy = &mrioc->sas_hba.phy[i];
if (mr_sas_phy->phy_belongs_to_port)
mpi3mr_del_phy_from_an_existing_port(mrioc,
&mrioc->sas_hba, mr_sas_phy);
}
}
/**
* mpi3mr_refresh_sas_ports - update host's sas ports during reset
* @mrioc: Adapter instance reference
*
* Update the host's sas ports during reset by checking whether
* sas ports are still intact or not. Add/remove phys if any hba
* phys are (moved in)/(moved out) of sas port. Also update
* io_unit_port if it got changed during reset.
*
* Return: Nothing.
*/
void
mpi3mr_refresh_sas_ports(struct mpi3mr_ioc *mrioc)
{
struct host_port *h_port = NULL;
int i, j, found, host_port_count = 0, port_idx;
u16 sz, attached_handle, ioc_status;
struct mpi3_sas_io_unit_page0 *sas_io_unit_pg0 = NULL;
struct mpi3_device_page0 dev_pg0;
struct mpi3_device0_sas_sata_format *sasinf;
struct mpi3mr_sas_port *mr_sas_port;
sz = offsetof(struct mpi3_sas_io_unit_page0, phy_data) +
(mrioc->sas_hba.num_phys *
sizeof(struct mpi3_sas_io_unit0_phy_data));
sas_io_unit_pg0 = kzalloc(sz, GFP_KERNEL);
if (!sas_io_unit_pg0)
return;
h_port = kcalloc(64, sizeof(struct host_port), GFP_KERNEL);
if (!h_port)
goto out;
if (mpi3mr_cfg_get_sas_io_unit_pg0(mrioc, sas_io_unit_pg0, sz)) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
/* Create a new expander port table */
for (i = 0; i < mrioc->sas_hba.num_phys; i++) {
attached_handle = le16_to_cpu(
sas_io_unit_pg0->phy_data[i].attached_dev_handle);
if (!attached_handle)
continue;
found = 0;
for (j = 0; j < host_port_count; j++) {
if (h_port[j].handle == attached_handle) {
h_port[j].phy_mask |= (1 << i);
found = 1;
break;
}
}
if (found)
continue;
if ((mpi3mr_cfg_get_dev_pg0(mrioc, &ioc_status, &dev_pg0,
sizeof(dev_pg0), MPI3_DEVICE_PGAD_FORM_HANDLE,
attached_handle))) {
dprint_reset(mrioc,
"failed to read dev_pg0 for handle(0x%04x) at %s:%d/%s()!\n",
attached_handle, __FILE__, __LINE__, __func__);
continue;
}
if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
dprint_reset(mrioc,
"ioc_status(0x%x) while reading dev_pg0 for handle(0x%04x) at %s:%d/%s()!\n",
ioc_status, attached_handle,
__FILE__, __LINE__, __func__);
continue;
}
sasinf = &dev_pg0.device_specific.sas_sata_format;
port_idx = host_port_count;
h_port[port_idx].sas_address = le64_to_cpu(sasinf->sas_address);
h_port[port_idx].handle = attached_handle;
h_port[port_idx].phy_mask = (1 << i);
h_port[port_idx].iounit_port_id = sas_io_unit_pg0->phy_data[i].io_unit_port;
h_port[port_idx].lowest_phy = sasinf->phy_num;
h_port[port_idx].used = 0;
host_port_count++;
}
if (!host_port_count)
goto out;
if (mrioc->logging_level & MPI3_DEBUG_RESET) {
ioc_info(mrioc, "Host port details before reset\n");
list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list,
port_list) {
ioc_info(mrioc,
"port_id:%d, sas_address:(0x%016llx), phy_mask:(0x%llx), lowest phy id:%d\n",
mr_sas_port->hba_port->port_id,
mr_sas_port->remote_identify.sas_address,
mr_sas_port->phy_mask, mr_sas_port->lowest_phy);
}
mr_sas_port = NULL;
ioc_info(mrioc, "Host port details after reset\n");
for (i = 0; i < host_port_count; i++) {
ioc_info(mrioc,
"port_id:%d, sas_address:(0x%016llx), phy_mask:(0x%llx), lowest phy id:%d\n",
h_port[i].iounit_port_id, h_port[i].sas_address,
h_port[i].phy_mask, h_port[i].lowest_phy);
}
}
/* mark all host sas port entries as dirty */
list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list,
port_list) {
mr_sas_port->marked_responding = 0;
mr_sas_port->hba_port->flags |= MPI3MR_HBA_PORT_FLAG_DIRTY;
}
/* First check for matching lowest phy */
for (i = 0; i < host_port_count; i++) {
mr_sas_port = NULL;
list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list,
port_list) {
if (mr_sas_port->marked_responding)
continue;
if (h_port[i].sas_address != mr_sas_port->remote_identify.sas_address)
continue;
if (h_port[i].lowest_phy == mr_sas_port->lowest_phy) {
mpi3mr_update_mr_sas_port(mrioc, &h_port[i], mr_sas_port);
break;
}
}
}
/* In case if lowest phy is got enabled or disabled during reset */
for (i = 0; i < host_port_count; i++) {
if (h_port[i].used)
continue;
mr_sas_port = NULL;
list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list,
port_list) {
if (mr_sas_port->marked_responding)
continue;
if (h_port[i].sas_address != mr_sas_port->remote_identify.sas_address)
continue;
if (h_port[i].phy_mask & mr_sas_port->phy_mask) {
mpi3mr_update_mr_sas_port(mrioc, &h_port[i], mr_sas_port);
break;
}
}
}
/* In case if expander cable is removed & connected to another HBA port during reset */
for (i = 0; i < host_port_count; i++) {
if (h_port[i].used)
continue;
mr_sas_port = NULL;
list_for_each_entry(mr_sas_port, &mrioc->sas_hba.sas_port_list,
port_list) {
if (mr_sas_port->marked_responding)
continue;
if (h_port[i].sas_address != mr_sas_port->remote_identify.sas_address)
continue;
mpi3mr_update_mr_sas_port(mrioc, &h_port[i], mr_sas_port);
break;
}
}
out:
kfree(h_port);
kfree(sas_io_unit_pg0);
}
/**
* mpi3mr_refresh_expanders - Refresh expander device exposure
* @mrioc: Adapter instance reference
*
* This is executed post controller reset to identify any
* missing expander devices during reset and remove from the upper layers
* or expose any newly detected expander device to the upper layers.
*
* Return: Nothing.
*/
void
mpi3mr_refresh_expanders(struct mpi3mr_ioc *mrioc)
{
struct mpi3mr_sas_node *sas_expander, *sas_expander_next;
struct mpi3_sas_expander_page0 expander_pg0;
u16 ioc_status, handle;
u64 sas_address;
int i;
unsigned long flags;
struct mpi3mr_hba_port *hba_port;
spin_lock_irqsave(&mrioc->sas_node_lock, flags);
list_for_each_entry(sas_expander, &mrioc->sas_expander_list, list) {
sas_expander->non_responding = 1;
}
spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
sas_expander = NULL;
handle = 0xffff;
/* Search for responding expander devices and add them if they are newly got added */
while (true) {
if ((mpi3mr_cfg_get_sas_exp_pg0(mrioc, &ioc_status, &expander_pg0,
sizeof(struct mpi3_sas_expander_page0),
MPI3_SAS_EXPAND_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
dprint_reset(mrioc,
"failed to read exp pg0 for handle(0x%04x) at %s:%d/%s()!\n",
handle, __FILE__, __LINE__, __func__);
break;
}
if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
dprint_reset(mrioc,
"ioc_status(0x%x) while reading exp pg0 for handle:(0x%04x), %s:%d/%s()!\n",
ioc_status, handle, __FILE__, __LINE__, __func__);
break;
}
handle = le16_to_cpu(expander_pg0.dev_handle);
sas_address = le64_to_cpu(expander_pg0.sas_address);
hba_port = mpi3mr_get_hba_port_by_id(mrioc, expander_pg0.io_unit_port);
if (!hba_port) {
mpi3mr_sas_host_refresh(mrioc);
mpi3mr_expander_add(mrioc, handle);
continue;
}
spin_lock_irqsave(&mrioc->sas_node_lock, flags);
sas_expander =
mpi3mr_expander_find_by_sas_address(mrioc,
sas_address, hba_port);
spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
if (!sas_expander) {
mpi3mr_sas_host_refresh(mrioc);
mpi3mr_expander_add(mrioc, handle);
continue;
}
sas_expander->non_responding = 0;
if (sas_expander->handle == handle)
continue;
sas_expander->handle = handle;
for (i = 0 ; i < sas_expander->num_phys ; i++)
sas_expander->phy[i].handle = handle;
}
/*
* Delete non responding expander devices and the corresponding
* hba_port if the non responding expander device's parent device
* is a host node.
*/
sas_expander = NULL;
spin_lock_irqsave(&mrioc->sas_node_lock, flags);
list_for_each_entry_safe_reverse(sas_expander, sas_expander_next,
&mrioc->sas_expander_list, list) {
if (sas_expander->non_responding) {
spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
mpi3mr_expander_node_remove(mrioc, sas_expander);
spin_lock_irqsave(&mrioc->sas_node_lock, flags);
}
}
spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
}
/**
* mpi3mr_expander_node_add - insert an expander to the list.
* @mrioc: Adapter instance reference
* @sas_expander: Expander sas node
* Context: This function will acquire sas_node_lock.
*
* Adding new object to the ioc->sas_expander_list.
*
* Return: None.
*/
static void mpi3mr_expander_node_add(struct mpi3mr_ioc *mrioc,
struct mpi3mr_sas_node *sas_expander)
{
unsigned long flags;
spin_lock_irqsave(&mrioc->sas_node_lock, flags);
list_add_tail(&sas_expander->list, &mrioc->sas_expander_list);
spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
}
/**
* mpi3mr_expander_add - Create expander object
* @mrioc: Adapter instance reference
* @handle: Expander firmware device handle
*
* This function creating expander object, stored in
* sas_expander_list and expose it to the SAS transport
* layer.
*
* Return: 0 for success, non-zero for failure.
*/
int mpi3mr_expander_add(struct mpi3mr_ioc *mrioc, u16 handle)
{
struct mpi3mr_sas_node *sas_expander;
struct mpi3mr_enclosure_node *enclosure_dev;
struct mpi3_sas_expander_page0 expander_pg0;
struct mpi3_sas_expander_page1 expander_pg1;
u16 ioc_status, parent_handle, temp_handle;
u64 sas_address, sas_address_parent = 0;
int i;
unsigned long flags;
u8 port_id, link_rate;
struct mpi3mr_sas_port *mr_sas_port = NULL;
struct mpi3mr_hba_port *hba_port;
u32 phynum_handle;
int rc = 0;
if (!handle)
return -1;
if (mrioc->reset_in_progress)
return -1;
if ((mpi3mr_cfg_get_sas_exp_pg0(mrioc, &ioc_status, &expander_pg0,
sizeof(expander_pg0), MPI3_SAS_EXPAND_PGAD_FORM_HANDLE, handle))) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return -1;
}
if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return -1;
}
parent_handle = le16_to_cpu(expander_pg0.parent_dev_handle);
if (mpi3mr_get_sas_address(mrioc, parent_handle, &sas_address_parent)
!= 0) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return -1;
}
port_id = expander_pg0.io_unit_port;
hba_port = mpi3mr_get_hba_port_by_id(mrioc, port_id);
if (!hba_port) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return -1;
}
if (sas_address_parent != mrioc->sas_hba.sas_address) {
spin_lock_irqsave(&mrioc->sas_node_lock, flags);
sas_expander =
mpi3mr_expander_find_by_sas_address(mrioc,
sas_address_parent, hba_port);
spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
if (!sas_expander) {
rc = mpi3mr_expander_add(mrioc, parent_handle);
if (rc != 0)
return rc;
} else {
/*
* When there is a parent expander present, update it's
* phys where child expander is connected with the link
* speed, attached dev handle and sas address.
*/
for (i = 0 ; i < sas_expander->num_phys ; i++) {
phynum_handle =
(i << MPI3_SAS_EXPAND_PGAD_PHYNUM_SHIFT) |
parent_handle;
if (mpi3mr_cfg_get_sas_exp_pg1(mrioc,
&ioc_status, &expander_pg1,
sizeof(expander_pg1),
MPI3_SAS_EXPAND_PGAD_FORM_HANDLE_PHY_NUM,
phynum_handle)) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
rc = -1;
return rc;
}
if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
rc = -1;
return rc;
}
temp_handle = le16_to_cpu(
expander_pg1.attached_dev_handle);
if (temp_handle != handle)
continue;
link_rate = (expander_pg1.negotiated_link_rate &
MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK) >>
MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT;
mpi3mr_update_links(mrioc, sas_address_parent,
handle, i, link_rate, hba_port);
}
}
}
spin_lock_irqsave(&mrioc->sas_node_lock, flags);
sas_address = le64_to_cpu(expander_pg0.sas_address);
sas_expander = mpi3mr_expander_find_by_sas_address(mrioc,
sas_address, hba_port);
spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
if (sas_expander)
return 0;
sas_expander = kzalloc(sizeof(struct mpi3mr_sas_node),
GFP_KERNEL);
if (!sas_expander)
return -ENOMEM;
sas_expander->handle = handle;
sas_expander->num_phys = expander_pg0.num_phys;
sas_expander->sas_address_parent = sas_address_parent;
sas_expander->sas_address = sas_address;
sas_expander->hba_port = hba_port;
ioc_info(mrioc,
"expander_add: handle(0x%04x), parent(0x%04x), sas_addr(0x%016llx), phys(%d)\n",
handle, parent_handle, (unsigned long long)
sas_expander->sas_address, sas_expander->num_phys);
if (!sas_expander->num_phys) {
rc = -1;
goto out_fail;
}
sas_expander->phy = kcalloc(sas_expander->num_phys,
sizeof(struct mpi3mr_sas_phy), GFP_KERNEL);
if (!sas_expander->phy) {
rc = -1;
goto out_fail;
}
INIT_LIST_HEAD(&sas_expander->sas_port_list);
mr_sas_port = mpi3mr_sas_port_add(mrioc, handle, sas_address_parent,
sas_expander->hba_port);
if (!mr_sas_port) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
rc = -1;
goto out_fail;
}
sas_expander->parent_dev = &mr_sas_port->rphy->dev;
sas_expander->rphy = mr_sas_port->rphy;
for (i = 0 ; i < sas_expander->num_phys ; i++) {
phynum_handle = (i << MPI3_SAS_EXPAND_PGAD_PHYNUM_SHIFT) |
handle;
if (mpi3mr_cfg_get_sas_exp_pg1(mrioc, &ioc_status,
&expander_pg1, sizeof(expander_pg1),
MPI3_SAS_EXPAND_PGAD_FORM_HANDLE_PHY_NUM,
phynum_handle)) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
rc = -1;
goto out_fail;
}
if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
rc = -1;
goto out_fail;
}
sas_expander->phy[i].handle = handle;
sas_expander->phy[i].phy_id = i;
sas_expander->phy[i].hba_port = hba_port;
if ((mpi3mr_add_expander_phy(mrioc, &sas_expander->phy[i],
expander_pg1, sas_expander->parent_dev))) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
rc = -1;
goto out_fail;
}
}
if (sas_expander->enclosure_handle) {
enclosure_dev =
mpi3mr_enclosure_find_by_handle(mrioc,
sas_expander->enclosure_handle);
if (enclosure_dev)
sas_expander->enclosure_logical_id = le64_to_cpu(
enclosure_dev->pg0.enclosure_logical_id);
}
mpi3mr_expander_node_add(mrioc, sas_expander);
return 0;
out_fail:
if (mr_sas_port)
mpi3mr_sas_port_remove(mrioc,
sas_expander->sas_address,
sas_address_parent, sas_expander->hba_port);
kfree(sas_expander->phy);
kfree(sas_expander);
return rc;
}
/**
* mpi3mr_expander_node_remove - recursive removal of expander.
* @mrioc: Adapter instance reference
* @sas_expander: Expander device object
*
* Removes expander object and freeing associated memory from
* the sas_expander_list and removes the same from SAS TL, if
* one of the attached device is an expander then it recursively
* removes the expander device too.
*
* Return nothing.
*/
void mpi3mr_expander_node_remove(struct mpi3mr_ioc *mrioc,
struct mpi3mr_sas_node *sas_expander)
{
struct mpi3mr_sas_port *mr_sas_port, *next;
unsigned long flags;
u8 port_id;
/* remove sibling ports attached to this expander */
list_for_each_entry_safe(mr_sas_port, next,
&sas_expander->sas_port_list, port_list) {
if (mrioc->reset_in_progress)
return;
if (mr_sas_port->remote_identify.device_type ==
SAS_END_DEVICE)
mpi3mr_remove_device_by_sas_address(mrioc,
mr_sas_port->remote_identify.sas_address,
mr_sas_port->hba_port);
else if (mr_sas_port->remote_identify.device_type ==
SAS_EDGE_EXPANDER_DEVICE ||
mr_sas_port->remote_identify.device_type ==
SAS_FANOUT_EXPANDER_DEVICE)
mpi3mr_expander_remove(mrioc,
mr_sas_port->remote_identify.sas_address,
mr_sas_port->hba_port);
}
port_id = sas_expander->hba_port->port_id;
mpi3mr_sas_port_remove(mrioc, sas_expander->sas_address,
sas_expander->sas_address_parent, sas_expander->hba_port);
ioc_info(mrioc, "expander_remove: handle(0x%04x), sas_addr(0x%016llx), port:%d\n",
sas_expander->handle, (unsigned long long)
sas_expander->sas_address, port_id);
spin_lock_irqsave(&mrioc->sas_node_lock, flags);
list_del(&sas_expander->list);
spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
kfree(sas_expander->phy);
kfree(sas_expander);
}
/**
* mpi3mr_expander_remove - Remove expander object
* @mrioc: Adapter instance reference
* @sas_address: Remove expander sas_address
* @hba_port: HBA port reference
*
* This function remove expander object, stored in
* mrioc->sas_expander_list and removes it from the SAS TL by
* calling mpi3mr_expander_node_remove().
*
* Return: None
*/
void mpi3mr_expander_remove(struct mpi3mr_ioc *mrioc, u64 sas_address,
struct mpi3mr_hba_port *hba_port)
{
struct mpi3mr_sas_node *sas_expander;
unsigned long flags;
if (mrioc->reset_in_progress)
return;
if (!hba_port)
return;
spin_lock_irqsave(&mrioc->sas_node_lock, flags);
sas_expander = mpi3mr_expander_find_by_sas_address(mrioc, sas_address,
hba_port);
spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
if (sas_expander)
mpi3mr_expander_node_remove(mrioc, sas_expander);
}
/**
* mpi3mr_get_sas_negotiated_logical_linkrate - get linkrate
* @mrioc: Adapter instance reference
* @tgtdev: Target device
*
* This function identifies whether the target device is
* attached directly or through expander and issues sas phy
* page0 or expander phy page1 and gets the link rate, if there
* is any failure in reading the pages then this returns link
* rate of 1.5.
*
* Return: logical link rate.
*/
static u8 mpi3mr_get_sas_negotiated_logical_linkrate(struct mpi3mr_ioc *mrioc,
struct mpi3mr_tgt_dev *tgtdev)
{
u8 link_rate = MPI3_SAS_NEG_LINK_RATE_1_5, phy_number;
struct mpi3_sas_expander_page1 expander_pg1;
struct mpi3_sas_phy_page0 phy_pg0;
u32 phynum_handle;
u16 ioc_status;
phy_number = tgtdev->dev_spec.sas_sata_inf.phy_id;
if (!(tgtdev->devpg0_flag & MPI3_DEVICE0_FLAGS_ATT_METHOD_DIR_ATTACHED)) {
phynum_handle = ((phy_number<<MPI3_SAS_EXPAND_PGAD_PHYNUM_SHIFT)
| tgtdev->parent_handle);
if (mpi3mr_cfg_get_sas_exp_pg1(mrioc, &ioc_status,
&expander_pg1, sizeof(expander_pg1),
MPI3_SAS_EXPAND_PGAD_FORM_HANDLE_PHY_NUM,
phynum_handle)) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
link_rate = (expander_pg1.negotiated_link_rate &
MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK) >>
MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT;
goto out;
}
if (mpi3mr_cfg_get_sas_phy_pg0(mrioc, &ioc_status, &phy_pg0,
sizeof(struct mpi3_sas_phy_page0),
MPI3_SAS_PHY_PGAD_FORM_PHY_NUMBER, phy_number)) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out;
}
link_rate = (phy_pg0.negotiated_link_rate &
MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK) >>
MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT;
out:
return link_rate;
}
/**
* mpi3mr_report_tgtdev_to_sas_transport - expose dev to SAS TL
* @mrioc: Adapter instance reference
* @tgtdev: Target device
*
* This function exposes the target device after
* preparing host_phy, setting up link rate etc.
*
* Return: 0 on success, non-zero for failure.
*/
int mpi3mr_report_tgtdev_to_sas_transport(struct mpi3mr_ioc *mrioc,
struct mpi3mr_tgt_dev *tgtdev)
{
int retval = 0;
u8 link_rate, parent_phy_number;
u64 sas_address_parent, sas_address;
struct mpi3mr_hba_port *hba_port;
u8 port_id;
if ((tgtdev->dev_type != MPI3_DEVICE_DEVFORM_SAS_SATA) ||
!mrioc->sas_transport_enabled)
return -1;
sas_address = tgtdev->dev_spec.sas_sata_inf.sas_address;
if (!mrioc->sas_hba.num_phys)
mpi3mr_sas_host_add(mrioc);
else
mpi3mr_sas_host_refresh(mrioc);
if (mpi3mr_get_sas_address(mrioc, tgtdev->parent_handle,
&sas_address_parent) != 0) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return -1;
}
tgtdev->dev_spec.sas_sata_inf.sas_address_parent = sas_address_parent;
parent_phy_number = tgtdev->dev_spec.sas_sata_inf.phy_id;
port_id = tgtdev->io_unit_port;
hba_port = mpi3mr_get_hba_port_by_id(mrioc, port_id);
if (!hba_port) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return -1;
}
tgtdev->dev_spec.sas_sata_inf.hba_port = hba_port;
link_rate = mpi3mr_get_sas_negotiated_logical_linkrate(mrioc, tgtdev);
mpi3mr_update_links(mrioc, sas_address_parent, tgtdev->dev_handle,
parent_phy_number, link_rate, hba_port);
tgtdev->host_exposed = 1;
if (!mpi3mr_sas_port_add(mrioc, tgtdev->dev_handle,
sas_address_parent, hba_port)) {
retval = -1;
} else if ((!tgtdev->starget) && (!mrioc->is_driver_loading)) {
mpi3mr_sas_port_remove(mrioc, sas_address,
sas_address_parent, hba_port);
retval = -1;
}
if (retval) {
tgtdev->dev_spec.sas_sata_inf.hba_port = NULL;
tgtdev->host_exposed = 0;
}
return retval;
}
/**
* mpi3mr_remove_tgtdev_from_sas_transport - remove from SAS TL
* @mrioc: Adapter instance reference
* @tgtdev: Target device
*
* This function removes the target device
*
* Return: None.
*/
void mpi3mr_remove_tgtdev_from_sas_transport(struct mpi3mr_ioc *mrioc,
struct mpi3mr_tgt_dev *tgtdev)
{
u64 sas_address_parent, sas_address;
struct mpi3mr_hba_port *hba_port;
if ((tgtdev->dev_type != MPI3_DEVICE_DEVFORM_SAS_SATA) ||
!mrioc->sas_transport_enabled)
return;
hba_port = tgtdev->dev_spec.sas_sata_inf.hba_port;
sas_address = tgtdev->dev_spec.sas_sata_inf.sas_address;
sas_address_parent = tgtdev->dev_spec.sas_sata_inf.sas_address_parent;
mpi3mr_sas_port_remove(mrioc, sas_address, sas_address_parent,
hba_port);
tgtdev->host_exposed = 0;
tgtdev->dev_spec.sas_sata_inf.hba_port = NULL;
}
/**
* mpi3mr_get_port_id_by_sas_phy - Get port ID of the given phy
* @phy: SAS transport layer phy object
*
* Return: Port number for valid ID else 0xFFFF
*/
static inline u8 mpi3mr_get_port_id_by_sas_phy(struct sas_phy *phy)
{
u8 port_id = 0xFF;
struct mpi3mr_hba_port *hba_port = phy->hostdata;
if (hba_port)
port_id = hba_port->port_id;
return port_id;
}
/**
* mpi3mr_get_port_id_by_rphy - Get Port number from SAS rphy
*
* @mrioc: Adapter instance reference
* @rphy: SAS transport layer remote phy object
*
* Retrieves HBA port number in which the device pointed by the
* rphy object is attached with.
*
* Return: Valid port number on success else OxFFFF.
*/
static u8 mpi3mr_get_port_id_by_rphy(struct mpi3mr_ioc *mrioc, struct sas_rphy *rphy)
{
struct mpi3mr_sas_node *sas_expander;
struct mpi3mr_tgt_dev *tgtdev;
unsigned long flags;
u8 port_id = 0xFF;
if (!rphy)
return port_id;
if (rphy->identify.device_type == SAS_EDGE_EXPANDER_DEVICE ||
rphy->identify.device_type == SAS_FANOUT_EXPANDER_DEVICE) {
spin_lock_irqsave(&mrioc->sas_node_lock, flags);
list_for_each_entry(sas_expander, &mrioc->sas_expander_list,
list) {
if (sas_expander->rphy == rphy) {
port_id = sas_expander->hba_port->port_id;
break;
}
}
spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
} else if (rphy->identify.device_type == SAS_END_DEVICE) {
spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
tgtdev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc,
rphy->identify.sas_address, rphy);
if (tgtdev && tgtdev->dev_spec.sas_sata_inf.hba_port) {
port_id =
tgtdev->dev_spec.sas_sata_inf.hba_port->port_id;
mpi3mr_tgtdev_put(tgtdev);
}
spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
}
return port_id;
}
static inline struct mpi3mr_ioc *phy_to_mrioc(struct sas_phy *phy)
{
struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
return shost_priv(shost);
}
static inline struct mpi3mr_ioc *rphy_to_mrioc(struct sas_rphy *rphy)
{
struct Scsi_Host *shost = dev_to_shost(rphy->dev.parent->parent);
return shost_priv(shost);
}
/* report phy error log structure */
struct phy_error_log_request {
u8 smp_frame_type; /* 0x40 */
u8 function; /* 0x11 */
u8 allocated_response_length;
u8 request_length; /* 02 */
u8 reserved_1[5];
u8 phy_identifier;
u8 reserved_2[2];
};
/* report phy error log reply structure */
struct phy_error_log_reply {
u8 smp_frame_type; /* 0x41 */
u8 function; /* 0x11 */
u8 function_result;
u8 response_length;
__be16 expander_change_count;
u8 reserved_1[3];
u8 phy_identifier;
u8 reserved_2[2];
__be32 invalid_dword;
__be32 running_disparity_error;
__be32 loss_of_dword_sync;
__be32 phy_reset_problem;
};
/**
* mpi3mr_get_expander_phy_error_log - return expander counters:
* @mrioc: Adapter instance reference
* @phy: The SAS transport layer phy object
*
* Return: 0 for success, non-zero for failure.
*
*/
static int mpi3mr_get_expander_phy_error_log(struct mpi3mr_ioc *mrioc,
struct sas_phy *phy)
{
struct mpi3_smp_passthrough_request mpi_request;
struct mpi3_smp_passthrough_reply mpi_reply;
struct phy_error_log_request *phy_error_log_request;
struct phy_error_log_reply *phy_error_log_reply;
int rc;
void *psge;
void *data_out = NULL;
dma_addr_t data_out_dma, data_in_dma;
u32 data_out_sz, data_in_sz, sz;
u8 sgl_flags = MPI3MR_SGEFLAGS_SYSTEM_SIMPLE_END_OF_LIST;
u16 request_sz = sizeof(struct mpi3_smp_passthrough_request);
u16 reply_sz = sizeof(struct mpi3_smp_passthrough_reply);
u16 ioc_status;
if (mrioc->reset_in_progress) {
ioc_err(mrioc, "%s: host reset in progress!\n", __func__);
return -EFAULT;
}
data_out_sz = sizeof(struct phy_error_log_request);
data_in_sz = sizeof(struct phy_error_log_reply);
sz = data_out_sz + data_in_sz;
data_out = dma_alloc_coherent(&mrioc->pdev->dev, sz, &data_out_dma,
GFP_KERNEL);
if (!data_out) {
rc = -ENOMEM;
goto out;
}
data_in_dma = data_out_dma + data_out_sz;
phy_error_log_reply = data_out + data_out_sz;
rc = -EINVAL;
memset(data_out, 0, sz);
phy_error_log_request = data_out;
phy_error_log_request->smp_frame_type = 0x40;
phy_error_log_request->function = 0x11;
phy_error_log_request->request_length = 2;
phy_error_log_request->allocated_response_length = 0;
phy_error_log_request->phy_identifier = phy->number;
memset(&mpi_request, 0, request_sz);
memset(&mpi_reply, 0, reply_sz);
mpi_request.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_TRANSPORT_CMDS);
mpi_request.function = MPI3_FUNCTION_SMP_PASSTHROUGH;
mpi_request.io_unit_port = (u8) mpi3mr_get_port_id_by_sas_phy(phy);
mpi_request.sas_address = cpu_to_le64(phy->identify.sas_address);
psge = &mpi_request.request_sge;
mpi3mr_add_sg_single(psge, sgl_flags, data_out_sz, data_out_dma);
psge = &mpi_request.response_sge;
mpi3mr_add_sg_single(psge, sgl_flags, data_in_sz, data_in_dma);
dprint_transport_info(mrioc,
"sending phy error log SMP request to sas_address(0x%016llx), phy_id(%d)\n",
(unsigned long long)phy->identify.sas_address, phy->number);
if (mpi3mr_post_transport_req(mrioc, &mpi_request, request_sz,
&mpi_reply, reply_sz, MPI3MR_INTADMCMD_TIMEOUT, &ioc_status))
goto out;
dprint_transport_info(mrioc,
"phy error log SMP request completed with ioc_status(0x%04x)\n",
ioc_status);
if (ioc_status == MPI3_IOCSTATUS_SUCCESS) {
dprint_transport_info(mrioc,
"phy error log - reply data transfer size(%d)\n",
le16_to_cpu(mpi_reply.response_data_length));
if (le16_to_cpu(mpi_reply.response_data_length) !=
sizeof(struct phy_error_log_reply))
goto out;
dprint_transport_info(mrioc,
"phy error log - function_result(%d)\n",
phy_error_log_reply->function_result);
phy->invalid_dword_count =
be32_to_cpu(phy_error_log_reply->invalid_dword);
phy->running_disparity_error_count =
be32_to_cpu(phy_error_log_reply->running_disparity_error);
phy->loss_of_dword_sync_count =
be32_to_cpu(phy_error_log_reply->loss_of_dword_sync);
phy->phy_reset_problem_count =
be32_to_cpu(phy_error_log_reply->phy_reset_problem);
rc = 0;
}
out:
if (data_out)
dma_free_coherent(&mrioc->pdev->dev, sz, data_out,
data_out_dma);
return rc;
}
/**
* mpi3mr_transport_get_linkerrors - return phy error counters
* @phy: The SAS transport layer phy object
*
* This function retrieves the phy error log information of the
* HBA or expander for which the phy belongs to
*
* Return: 0 for success, non-zero for failure.
*/
static int mpi3mr_transport_get_linkerrors(struct sas_phy *phy)
{
struct mpi3mr_ioc *mrioc = phy_to_mrioc(phy);
struct mpi3_sas_phy_page1 phy_pg1;
int rc = 0;
u16 ioc_status;
rc = mpi3mr_parent_present(mrioc, phy);
if (rc)
return rc;
if (phy->identify.sas_address != mrioc->sas_hba.sas_address)
return mpi3mr_get_expander_phy_error_log(mrioc, phy);
memset(&phy_pg1, 0, sizeof(struct mpi3_sas_phy_page1));
/* get hba phy error logs */
if ((mpi3mr_cfg_get_sas_phy_pg1(mrioc, &ioc_status, &phy_pg1,
sizeof(struct mpi3_sas_phy_page1),
MPI3_SAS_PHY_PGAD_FORM_PHY_NUMBER, phy->number))) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return -ENXIO;
}
if (ioc_status != MPI3_IOCSTATUS_SUCCESS) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
return -ENXIO;
}
phy->invalid_dword_count = le32_to_cpu(phy_pg1.invalid_dword_count);
phy->running_disparity_error_count =
le32_to_cpu(phy_pg1.running_disparity_error_count);
phy->loss_of_dword_sync_count =
le32_to_cpu(phy_pg1.loss_dword_synch_count);
phy->phy_reset_problem_count =
le32_to_cpu(phy_pg1.phy_reset_problem_count);
return 0;
}
/**
* mpi3mr_transport_get_enclosure_identifier - Get Enclosure ID
* @rphy: The SAS transport layer remote phy object
* @identifier: Enclosure identifier to be returned
*
* Returns the enclosure id for the device pointed by the remote
* phy object.
*
* Return: 0 on success or -ENXIO
*/
static int
mpi3mr_transport_get_enclosure_identifier(struct sas_rphy *rphy,
u64 *identifier)
{
struct mpi3mr_ioc *mrioc = rphy_to_mrioc(rphy);
struct mpi3mr_tgt_dev *tgtdev = NULL;
unsigned long flags;
int rc;
spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
tgtdev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc,
rphy->identify.sas_address, rphy);
if (tgtdev) {
*identifier =
tgtdev->enclosure_logical_id;
rc = 0;
mpi3mr_tgtdev_put(tgtdev);
} else {
*identifier = 0;
rc = -ENXIO;
}
spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
return rc;
}
/**
* mpi3mr_transport_get_bay_identifier - Get bay ID
* @rphy: The SAS transport layer remote phy object
*
* Returns the slot id for the device pointed by the remote phy
* object.
*
* Return: Valid slot ID on success or -ENXIO
*/
static int
mpi3mr_transport_get_bay_identifier(struct sas_rphy *rphy)
{
struct mpi3mr_ioc *mrioc = rphy_to_mrioc(rphy);
struct mpi3mr_tgt_dev *tgtdev = NULL;
unsigned long flags;
int rc;
spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
tgtdev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc,
rphy->identify.sas_address, rphy);
if (tgtdev) {
rc = tgtdev->slot;
mpi3mr_tgtdev_put(tgtdev);
} else
rc = -ENXIO;
spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
return rc;
}
/* phy control request structure */
struct phy_control_request {
u8 smp_frame_type; /* 0x40 */
u8 function; /* 0x91 */
u8 allocated_response_length;
u8 request_length; /* 0x09 */
u16 expander_change_count;
u8 reserved_1[3];
u8 phy_identifier;
u8 phy_operation;
u8 reserved_2[13];
u64 attached_device_name;
u8 programmed_min_physical_link_rate;
u8 programmed_max_physical_link_rate;
u8 reserved_3[6];
};
/* phy control reply structure */
struct phy_control_reply {
u8 smp_frame_type; /* 0x41 */
u8 function; /* 0x11 */
u8 function_result;
u8 response_length;
};
#define SMP_PHY_CONTROL_LINK_RESET (0x01)
#define SMP_PHY_CONTROL_HARD_RESET (0x02)
#define SMP_PHY_CONTROL_DISABLE (0x03)
/**
* mpi3mr_expander_phy_control - expander phy control
* @mrioc: Adapter instance reference
* @phy: The SAS transport layer phy object
* @phy_operation: The phy operation to be executed
*
* Issues SMP passthru phy control request to execute a specific
* phy operation for a given expander device.
*
* Return: 0 for success, non-zero for failure.
*/
static int
mpi3mr_expander_phy_control(struct mpi3mr_ioc *mrioc,
struct sas_phy *phy, u8 phy_operation)
{
struct mpi3_smp_passthrough_request mpi_request;
struct mpi3_smp_passthrough_reply mpi_reply;
struct phy_control_request *phy_control_request;
struct phy_control_reply *phy_control_reply;
int rc;
void *psge;
void *data_out = NULL;
dma_addr_t data_out_dma;
dma_addr_t data_in_dma;
size_t data_in_sz;
size_t data_out_sz;
u8 sgl_flags = MPI3MR_SGEFLAGS_SYSTEM_SIMPLE_END_OF_LIST;
u16 request_sz = sizeof(struct mpi3_smp_passthrough_request);
u16 reply_sz = sizeof(struct mpi3_smp_passthrough_reply);
u16 ioc_status;
u16 sz;
if (mrioc->reset_in_progress) {
ioc_err(mrioc, "%s: host reset in progress!\n", __func__);
return -EFAULT;
}
data_out_sz = sizeof(struct phy_control_request);
data_in_sz = sizeof(struct phy_control_reply);
sz = data_out_sz + data_in_sz;
data_out = dma_alloc_coherent(&mrioc->pdev->dev, sz, &data_out_dma,
GFP_KERNEL);
if (!data_out) {
rc = -ENOMEM;
goto out;
}
data_in_dma = data_out_dma + data_out_sz;
phy_control_reply = data_out + data_out_sz;
rc = -EINVAL;
memset(data_out, 0, sz);
phy_control_request = data_out;
phy_control_request->smp_frame_type = 0x40;
phy_control_request->function = 0x91;
phy_control_request->request_length = 9;
phy_control_request->allocated_response_length = 0;
phy_control_request->phy_identifier = phy->number;
phy_control_request->phy_operation = phy_operation;
phy_control_request->programmed_min_physical_link_rate =
phy->minimum_linkrate << 4;
phy_control_request->programmed_max_physical_link_rate =
phy->maximum_linkrate << 4;
memset(&mpi_request, 0, request_sz);
memset(&mpi_reply, 0, reply_sz);
mpi_request.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_TRANSPORT_CMDS);
mpi_request.function = MPI3_FUNCTION_SMP_PASSTHROUGH;
mpi_request.io_unit_port = (u8) mpi3mr_get_port_id_by_sas_phy(phy);
mpi_request.sas_address = cpu_to_le64(phy->identify.sas_address);
psge = &mpi_request.request_sge;
mpi3mr_add_sg_single(psge, sgl_flags, data_out_sz, data_out_dma);
psge = &mpi_request.response_sge;
mpi3mr_add_sg_single(psge, sgl_flags, data_in_sz, data_in_dma);
dprint_transport_info(mrioc,
"sending phy control SMP request to sas_address(0x%016llx), phy_id(%d) opcode(%d)\n",
(unsigned long long)phy->identify.sas_address, phy->number,
phy_operation);
if (mpi3mr_post_transport_req(mrioc, &mpi_request, request_sz,
&mpi_reply, reply_sz, MPI3MR_INTADMCMD_TIMEOUT, &ioc_status))
goto out;
dprint_transport_info(mrioc,
"phy control SMP request completed with ioc_status(0x%04x)\n",
ioc_status);
if (ioc_status == MPI3_IOCSTATUS_SUCCESS) {
dprint_transport_info(mrioc,
"phy control - reply data transfer size(%d)\n",
le16_to_cpu(mpi_reply.response_data_length));
if (le16_to_cpu(mpi_reply.response_data_length) !=
sizeof(struct phy_control_reply))
goto out;
dprint_transport_info(mrioc,
"phy control - function_result(%d)\n",
phy_control_reply->function_result);
rc = 0;
}
out:
if (data_out)
dma_free_coherent(&mrioc->pdev->dev, sz, data_out,
data_out_dma);
return rc;
}
/**
* mpi3mr_transport_phy_reset - Reset a given phy
* @phy: The SAS transport layer phy object
* @hard_reset: Flag to indicate the type of reset
*
* Return: 0 for success, non-zero for failure.
*/
static int
mpi3mr_transport_phy_reset(struct sas_phy *phy, int hard_reset)
{
struct mpi3mr_ioc *mrioc = phy_to_mrioc(phy);
struct mpi3_iounit_control_request mpi_request;
struct mpi3_iounit_control_reply mpi_reply;
u16 request_sz = sizeof(struct mpi3_iounit_control_request);
u16 reply_sz = sizeof(struct mpi3_iounit_control_reply);
int rc = 0;
u16 ioc_status;
rc = mpi3mr_parent_present(mrioc, phy);
if (rc)
return rc;
/* handle expander phys */
if (phy->identify.sas_address != mrioc->sas_hba.sas_address)
return mpi3mr_expander_phy_control(mrioc, phy,
(hard_reset == 1) ? SMP_PHY_CONTROL_HARD_RESET :
SMP_PHY_CONTROL_LINK_RESET);
/* handle hba phys */
memset(&mpi_request, 0, request_sz);
mpi_request.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_TRANSPORT_CMDS);
mpi_request.function = MPI3_FUNCTION_IO_UNIT_CONTROL;
mpi_request.operation = MPI3_CTRL_OP_SAS_PHY_CONTROL;
mpi_request.param8[MPI3_CTRL_OP_SAS_PHY_CONTROL_PARAM8_ACTION_INDEX] =
(hard_reset ? MPI3_CTRL_ACTION_HARD_RESET :
MPI3_CTRL_ACTION_LINK_RESET);
mpi_request.param8[MPI3_CTRL_OP_SAS_PHY_CONTROL_PARAM8_PHY_INDEX] =
phy->number;
dprint_transport_info(mrioc,
"sending phy reset request to sas_address(0x%016llx), phy_id(%d) hard_reset(%d)\n",
(unsigned long long)phy->identify.sas_address, phy->number,
hard_reset);
if (mpi3mr_post_transport_req(mrioc, &mpi_request, request_sz,
&mpi_reply, reply_sz, MPI3MR_INTADMCMD_TIMEOUT, &ioc_status)) {
rc = -EAGAIN;
goto out;
}
dprint_transport_info(mrioc,
"phy reset request completed with ioc_status(0x%04x)\n",
ioc_status);
out:
return rc;
}
/**
* mpi3mr_transport_phy_enable - enable/disable phys
* @phy: The SAS transport layer phy object
* @enable: flag to enable/disable, enable phy when true
*
* This function enables/disables a given by executing required
* configuration page changes or expander phy control command
*
* Return: 0 for success, non-zero for failure.
*/
static int
mpi3mr_transport_phy_enable(struct sas_phy *phy, int enable)
{
struct mpi3mr_ioc *mrioc = phy_to_mrioc(phy);
struct mpi3_sas_io_unit_page0 *sas_io_unit_pg0 = NULL;
struct mpi3_sas_io_unit_page1 *sas_io_unit_pg1 = NULL;
u16 sz;
int rc = 0;
int i, discovery_active;
rc = mpi3mr_parent_present(mrioc, phy);
if (rc)
return rc;
/* handle expander phys */
if (phy->identify.sas_address != mrioc->sas_hba.sas_address)
return mpi3mr_expander_phy_control(mrioc, phy,
(enable == 1) ? SMP_PHY_CONTROL_LINK_RESET :
SMP_PHY_CONTROL_DISABLE);
/* handle hba phys */
sz = offsetof(struct mpi3_sas_io_unit_page0, phy_data) +
(mrioc->sas_hba.num_phys *
sizeof(struct mpi3_sas_io_unit0_phy_data));
sas_io_unit_pg0 = kzalloc(sz, GFP_KERNEL);
if (!sas_io_unit_pg0) {
rc = -ENOMEM;
goto out;
}
if (mpi3mr_cfg_get_sas_io_unit_pg0(mrioc, sas_io_unit_pg0, sz)) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
rc = -ENXIO;
goto out;
}
/* unable to enable/disable phys when discovery is active */
for (i = 0, discovery_active = 0; i < mrioc->sas_hba.num_phys ; i++) {
if (sas_io_unit_pg0->phy_data[i].port_flags &
MPI3_SASIOUNIT0_PORTFLAGS_DISC_IN_PROGRESS) {
ioc_err(mrioc,
"discovery is active on port = %d, phy = %d\n"
"\tunable to enable/disable phys, try again later!\n",
sas_io_unit_pg0->phy_data[i].io_unit_port, i);
discovery_active = 1;
}
}
if (discovery_active) {
rc = -EAGAIN;
goto out;
}
if ((sas_io_unit_pg0->phy_data[phy->number].phy_flags &
(MPI3_SASIOUNIT0_PHYFLAGS_HOST_PHY |
MPI3_SASIOUNIT0_PHYFLAGS_VIRTUAL_PHY))) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
rc = -ENXIO;
goto out;
}
/* read sas_iounit page 1 */
sz = offsetof(struct mpi3_sas_io_unit_page1, phy_data) +
(mrioc->sas_hba.num_phys *
sizeof(struct mpi3_sas_io_unit1_phy_data));
sas_io_unit_pg1 = kzalloc(sz, GFP_KERNEL);
if (!sas_io_unit_pg1) {
rc = -ENOMEM;
goto out;
}
if (mpi3mr_cfg_get_sas_io_unit_pg1(mrioc, sas_io_unit_pg1, sz)) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
rc = -ENXIO;
goto out;
}
if (enable)
sas_io_unit_pg1->phy_data[phy->number].phy_flags
&= ~MPI3_SASIOUNIT1_PHYFLAGS_PHY_DISABLE;
else
sas_io_unit_pg1->phy_data[phy->number].phy_flags
|= MPI3_SASIOUNIT1_PHYFLAGS_PHY_DISABLE;
mpi3mr_cfg_set_sas_io_unit_pg1(mrioc, sas_io_unit_pg1, sz);
/* link reset */
if (enable)
mpi3mr_transport_phy_reset(phy, 0);
out:
kfree(sas_io_unit_pg1);
kfree(sas_io_unit_pg0);
return rc;
}
/**
* mpi3mr_transport_phy_speed - set phy min/max speed
* @phy: The SAS transport later phy object
* @rates: Rates defined as in sas_phy_linkrates
*
* This function sets the link rates given in the rates
* argument to the given phy by executing required configuration
* page changes or expander phy control command
*
* Return: 0 for success, non-zero for failure.
*/
static int
mpi3mr_transport_phy_speed(struct sas_phy *phy, struct sas_phy_linkrates *rates)
{
struct mpi3mr_ioc *mrioc = phy_to_mrioc(phy);
struct mpi3_sas_io_unit_page1 *sas_io_unit_pg1 = NULL;
struct mpi3_sas_phy_page0 phy_pg0;
u16 sz, ioc_status;
int rc = 0;
rc = mpi3mr_parent_present(mrioc, phy);
if (rc)
return rc;
if (!rates->minimum_linkrate)
rates->minimum_linkrate = phy->minimum_linkrate;
else if (rates->minimum_linkrate < phy->minimum_linkrate_hw)
rates->minimum_linkrate = phy->minimum_linkrate_hw;
if (!rates->maximum_linkrate)
rates->maximum_linkrate = phy->maximum_linkrate;
else if (rates->maximum_linkrate > phy->maximum_linkrate_hw)
rates->maximum_linkrate = phy->maximum_linkrate_hw;
/* handle expander phys */
if (phy->identify.sas_address != mrioc->sas_hba.sas_address) {
phy->minimum_linkrate = rates->minimum_linkrate;
phy->maximum_linkrate = rates->maximum_linkrate;
return mpi3mr_expander_phy_control(mrioc, phy,
SMP_PHY_CONTROL_LINK_RESET);
}
/* handle hba phys */
sz = offsetof(struct mpi3_sas_io_unit_page1, phy_data) +
(mrioc->sas_hba.num_phys *
sizeof(struct mpi3_sas_io_unit1_phy_data));
sas_io_unit_pg1 = kzalloc(sz, GFP_KERNEL);
if (!sas_io_unit_pg1) {
rc = -ENOMEM;
goto out;
}
if (mpi3mr_cfg_get_sas_io_unit_pg1(mrioc, sas_io_unit_pg1, sz)) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
rc = -ENXIO;
goto out;
}
sas_io_unit_pg1->phy_data[phy->number].max_min_link_rate =
(rates->minimum_linkrate + (rates->maximum_linkrate << 4));
if (mpi3mr_cfg_set_sas_io_unit_pg1(mrioc, sas_io_unit_pg1, sz)) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
rc = -ENXIO;
goto out;
}
/* link reset */
mpi3mr_transport_phy_reset(phy, 0);
/* read phy page 0, then update the rates in the sas transport phy */
if (!mpi3mr_cfg_get_sas_phy_pg0(mrioc, &ioc_status, &phy_pg0,
sizeof(struct mpi3_sas_phy_page0),
MPI3_SAS_PHY_PGAD_FORM_PHY_NUMBER, phy->number) &&
(ioc_status == MPI3_IOCSTATUS_SUCCESS)) {
phy->minimum_linkrate = mpi3mr_convert_phy_link_rate(
phy_pg0.programmed_link_rate &
MPI3_SAS_PRATE_MIN_RATE_MASK);
phy->maximum_linkrate = mpi3mr_convert_phy_link_rate(
phy_pg0.programmed_link_rate >> 4);
phy->negotiated_linkrate =
mpi3mr_convert_phy_link_rate(
(phy_pg0.negotiated_link_rate &
MPI3_SAS_NEG_LINK_RATE_LOGICAL_MASK)
>> MPI3_SAS_NEG_LINK_RATE_LOGICAL_SHIFT);
}
out:
kfree(sas_io_unit_pg1);
return rc;
}
/**
* mpi3mr_map_smp_buffer - map BSG dma buffer
* @dev: Generic device reference
* @buf: BSG buffer pointer
* @dma_addr: Physical address holder
* @dma_len: Mapped DMA buffer length.
* @p: Virtual address holder
*
* This function maps the DMAable buffer
*
* Return: 0 on success, non-zero on failure
*/
static int
mpi3mr_map_smp_buffer(struct device *dev, struct bsg_buffer *buf,
dma_addr_t *dma_addr, size_t *dma_len, void **p)
{
/* Check if the request is split across multiple segments */
if (buf->sg_cnt > 1) {
*p = dma_alloc_coherent(dev, buf->payload_len, dma_addr,
GFP_KERNEL);
if (!*p)
return -ENOMEM;
*dma_len = buf->payload_len;
} else {
if (!dma_map_sg(dev, buf->sg_list, 1, DMA_BIDIRECTIONAL))
return -ENOMEM;
*dma_addr = sg_dma_address(buf->sg_list);
*dma_len = sg_dma_len(buf->sg_list);
*p = NULL;
}
return 0;
}
/**
* mpi3mr_unmap_smp_buffer - unmap BSG dma buffer
* @dev: Generic device reference
* @buf: BSG buffer pointer
* @dma_addr: Physical address to be unmapped
* @p: Virtual address
*
* This function unmaps the DMAable buffer
*/
static void
mpi3mr_unmap_smp_buffer(struct device *dev, struct bsg_buffer *buf,
dma_addr_t dma_addr, void *p)
{
if (p)
dma_free_coherent(dev, buf->payload_len, p, dma_addr);
else
dma_unmap_sg(dev, buf->sg_list, 1, DMA_BIDIRECTIONAL);
}
/**
* mpi3mr_transport_smp_handler - handler for smp passthru
* @job: BSG job reference
* @shost: SCSI host object reference
* @rphy: SAS transport rphy object pointing the expander
*
* This is used primarily by smp utils for sending the SMP
* commands to the expanders attached to the controller
*/
static void
mpi3mr_transport_smp_handler(struct bsg_job *job, struct Scsi_Host *shost,
struct sas_rphy *rphy)
{
struct mpi3mr_ioc *mrioc = shost_priv(shost);
struct mpi3_smp_passthrough_request mpi_request;
struct mpi3_smp_passthrough_reply mpi_reply;
int rc;
void *psge;
dma_addr_t dma_addr_in;
dma_addr_t dma_addr_out;
void *addr_in = NULL;
void *addr_out = NULL;
size_t dma_len_in;
size_t dma_len_out;
unsigned int reslen = 0;
u16 request_sz = sizeof(struct mpi3_smp_passthrough_request);
u16 reply_sz = sizeof(struct mpi3_smp_passthrough_reply);
u8 sgl_flags = MPI3MR_SGEFLAGS_SYSTEM_SIMPLE_END_OF_LIST;
u16 ioc_status;
if (mrioc->reset_in_progress) {
ioc_err(mrioc, "%s: host reset in progress!\n", __func__);
rc = -EFAULT;
goto out;
}
rc = mpi3mr_map_smp_buffer(&mrioc->pdev->dev, &job->request_payload,
&dma_addr_out, &dma_len_out, &addr_out);
if (rc)
goto out;
if (addr_out)
sg_copy_to_buffer(job->request_payload.sg_list,
job->request_payload.sg_cnt, addr_out,
job->request_payload.payload_len);
rc = mpi3mr_map_smp_buffer(&mrioc->pdev->dev, &job->reply_payload,
&dma_addr_in, &dma_len_in, &addr_in);
if (rc)
goto unmap_out;
memset(&mpi_request, 0, request_sz);
memset(&mpi_reply, 0, reply_sz);
mpi_request.host_tag = cpu_to_le16(MPI3MR_HOSTTAG_TRANSPORT_CMDS);
mpi_request.function = MPI3_FUNCTION_SMP_PASSTHROUGH;
mpi_request.io_unit_port = (u8) mpi3mr_get_port_id_by_rphy(mrioc, rphy);
mpi_request.sas_address = ((rphy) ?
cpu_to_le64(rphy->identify.sas_address) :
cpu_to_le64(mrioc->sas_hba.sas_address));
psge = &mpi_request.request_sge;
mpi3mr_add_sg_single(psge, sgl_flags, dma_len_out - 4, dma_addr_out);
psge = &mpi_request.response_sge;
mpi3mr_add_sg_single(psge, sgl_flags, dma_len_in - 4, dma_addr_in);
dprint_transport_info(mrioc, "sending SMP request\n");
rc = mpi3mr_post_transport_req(mrioc, &mpi_request, request_sz,
&mpi_reply, reply_sz,
MPI3MR_INTADMCMD_TIMEOUT, &ioc_status);
if (rc)
goto unmap_in;
dprint_transport_info(mrioc,
"SMP request completed with ioc_status(0x%04x)\n", ioc_status);
dprint_transport_info(mrioc,
"SMP request - reply data transfer size(%d)\n",
le16_to_cpu(mpi_reply.response_data_length));
memcpy(job->reply, &mpi_reply, reply_sz);
job->reply_len = reply_sz;
reslen = le16_to_cpu(mpi_reply.response_data_length);
if (addr_in)
sg_copy_from_buffer(job->reply_payload.sg_list,
job->reply_payload.sg_cnt, addr_in,
job->reply_payload.payload_len);
rc = 0;
unmap_in:
mpi3mr_unmap_smp_buffer(&mrioc->pdev->dev, &job->reply_payload,
dma_addr_in, addr_in);
unmap_out:
mpi3mr_unmap_smp_buffer(&mrioc->pdev->dev, &job->request_payload,
dma_addr_out, addr_out);
out:
bsg_job_done(job, rc, reslen);
}
struct sas_function_template mpi3mr_transport_functions = {
.get_linkerrors = mpi3mr_transport_get_linkerrors,
.get_enclosure_identifier = mpi3mr_transport_get_enclosure_identifier,
.get_bay_identifier = mpi3mr_transport_get_bay_identifier,
.phy_reset = mpi3mr_transport_phy_reset,
.phy_enable = mpi3mr_transport_phy_enable,
.set_phy_speed = mpi3mr_transport_phy_speed,
.smp_handler = mpi3mr_transport_smp_handler,
};
struct scsi_transport_template *mpi3mr_transport_template;
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