// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Driver for Broadcom MPI3 Storage Controllers
*
* Copyright (C) 2017-2022 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;
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);
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,
"report manufacturer SMP request completed with ioc_status(0x%04x)\n",
ioc_status);
if (ioc_status == MPI3_IOCSTATUS_SUCCESS) {
u8 *tmp;
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))
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--;
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++;
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(dev_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++;
}
if (!mr_sas_port->num_phys) {
ioc_err(mrioc, "failure at %s:%d/%s()!\n",
__FILE__, __LINE__, __func__);
goto out_fail;
}
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->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);
}
/**
* 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 -1;
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.
*/
static 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)) {
tgtdev->host_exposed = 0;
retval = -1;
} else if ((!tgtdev->starget)) {
if (!mrioc->is_driver_loading)
mpi3mr_sas_port_remove(mrioc, sas_address,
sas_address_parent, hba_port);
tgtdev->host_exposed = 0;
retval = -1;
}
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;
}
/**
* 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) {
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");
if (mpi3mr_post_transport_req(mrioc, &mpi_request, request_sz,
&mpi_reply, reply_sz, MPI3MR_INTADMCMD_TIMEOUT, &ioc_status))
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;
