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scsi: mpi3mr: Add SAS SATA end devices to STL

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Register/unregister the SAS, SATA devices to SCSI Transport Layer(STL)
whenever the corresponding device is added/removed from topology.

Link: https://lore.kernel.org/r/20220804131226.16653-12-sreekanth.reddy@broadcom.com
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Sreekanth Reddy 2022-08-04 18:42:22 +05:30 • committed by Martin K. Petersen
parent 626665e9c3
commit 7f56c79196
3 changed files with 235 additions and 17 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
drivers/scsi/mpi3mr/mpi3mr.h
View file

@ -569,7 +569,10 @@ struct mpi3mr_enclosure_node {
* information cached from firmware given data
*
* @sas_address: World wide unique SAS address
* @sas_address_parent: Sas address of parent expander or host
* @dev_info: Device information bits
* @phy_id: Phy identifier provided in device page 0
* @attached_phy_id: Attached phy identifier provided in device page 0
* @sas_transport_attached: Is this device exposed to transport
* @pend_sas_rphy_add: Flag to check device is in process of add
* @hba_port: HBA port entry
@ -577,7 +580,10 @@ struct mpi3mr_enclosure_node {
*/
struct tgt_dev_sas_sata {
u64 sas_address;
u64 sas_address_parent;
u16 dev_info;
u8 phy_id;
u8 attached_phy_id;
u8 sas_transport_attached;
u8 pend_sas_rphy_add;
struct mpi3mr_hba_port *hba_port;
@ -1357,6 +1363,10 @@ void mpi3mr_update_links(struct mpi3mr_ioc *mrioc,
struct mpi3mr_hba_port *hba_port);
void mpi3mr_remove_tgtdev_from_host(struct mpi3mr_ioc *mrioc,
struct mpi3mr_tgt_dev *tgtdev);
int mpi3mr_report_tgtdev_to_sas_transport(struct mpi3mr_ioc *mrioc,
struct mpi3mr_tgt_dev *tgtdev);
void mpi3mr_remove_tgtdev_from_sas_transport(struct mpi3mr_ioc *mrioc,
struct mpi3mr_tgt_dev *tgtdev);
struct mpi3mr_tgt_dev *__mpi3mr_get_tgtdev_by_addr_and_rphy(
struct mpi3mr_ioc *mrioc, u64 sas_address, struct sas_rphy *rphy);
void mpi3mr_print_device_event_notice(struct mpi3mr_ioc *mrioc,

84
drivers/scsi/mpi3mr/mpi3mr_os.c
View file

@ -828,19 +828,25 @@ void mpi3mr_remove_tgtdev_from_host(struct mpi3mr_ioc *mrioc,
tgt_priv->dev_handle = MPI3MR_INVALID_DEV_HANDLE;
}
if (tgtdev->starget) {
if (mrioc->current_event)
mrioc->current_event->pending_at_sml = 1;
scsi_remove_target(&tgtdev->starget->dev);
tgtdev->host_exposed = 0;
if (mrioc->current_event) {
mrioc->current_event->pending_at_sml = 0;
if (mrioc->current_event->discard) {
mpi3mr_print_device_event_notice(mrioc, false);
return;
if (!mrioc->sas_transport_enabled || (tgtdev->dev_type !=
MPI3_DEVICE_DEVFORM_SAS_SATA) || tgtdev->non_stl) {
if (tgtdev->starget) {
if (mrioc->current_event)
mrioc->current_event->pending_at_sml = 1;
scsi_remove_target(&tgtdev->starget->dev);
tgtdev->host_exposed = 0;
if (mrioc->current_event) {
mrioc->current_event->pending_at_sml = 0;
if (mrioc->current_event->discard) {
mpi3mr_print_device_event_notice(mrioc,
false);
return;
}
}
}
}
} else
mpi3mr_remove_tgtdev_from_sas_transport(mrioc, tgtdev);
ioc_info(mrioc, "%s :Removed handle(0x%04x), wwid(0x%016llx)\n",
__func__, tgtdev->dev_handle, (unsigned long long)tgtdev->wwid);
}
@ -862,21 +868,25 @@ static int mpi3mr_report_tgtdev_to_host(struct mpi3mr_ioc *mrioc,
int retval = 0;
struct mpi3mr_tgt_dev *tgtdev;
if (mrioc->reset_in_progress)
return -1;
tgtdev = mpi3mr_get_tgtdev_by_perst_id(mrioc, perst_id);
if (!tgtdev) {
retval = -1;
goto out;
}
if (tgtdev->is_hidden) {
if (tgtdev->is_hidden || tgtdev->host_exposed) {
retval = -1;
goto out;
}
if (!tgtdev->host_exposed && !mrioc->reset_in_progress) {
if (!mrioc->sas_transport_enabled || (tgtdev->dev_type !=
MPI3_DEVICE_DEVFORM_SAS_SATA) || tgtdev->non_stl){
tgtdev->host_exposed = 1;
if (mrioc->current_event)
mrioc->current_event->pending_at_sml = 1;
scsi_scan_target(&mrioc->shost->shost_gendev, 0,
tgtdev->perst_id,
scsi_scan_target(&mrioc->shost->shost_gendev,
mrioc->scsi_device_channel, tgtdev->perst_id,
SCAN_WILD_CARD, SCSI_SCAN_INITIAL);
if (!tgtdev->starget)
tgtdev->host_exposed = 0;
@ -887,7 +897,8 @@ static int mpi3mr_report_tgtdev_to_host(struct mpi3mr_ioc *mrioc,
goto out;
}
}
}
} else
mpi3mr_report_tgtdev_to_sas_transport(mrioc, tgtdev);
out:
if (tgtdev)
mpi3mr_tgtdev_put(tgtdev);
@ -1079,6 +1090,9 @@ static void mpi3mr_update_tgtdev(struct mpi3mr_ioc *mrioc,
tgtdev->dev_spec.sas_sata_inf.dev_info = dev_info;
tgtdev->dev_spec.sas_sata_inf.sas_address =
le64_to_cpu(sasinf->sas_address);
tgtdev->dev_spec.sas_sata_inf.phy_id = sasinf->phy_num;
tgtdev->dev_spec.sas_sata_inf.attached_phy_id =
sasinf->attached_phy_identifier;
if ((dev_info & MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_MASK) !=
MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_END_DEVICE)
tgtdev->is_hidden = 1;
@ -1486,12 +1500,30 @@ static void mpi3mr_sastopochg_evt_bh(struct mpi3mr_ioc *mrioc,
int i;
u16 handle;
u8 reason_code;
u64 exp_sas_address = 0;
u64 exp_sas_address = 0, parent_sas_address = 0;
struct mpi3mr_hba_port *hba_port = NULL;
struct mpi3mr_tgt_dev *tgtdev = NULL;
struct mpi3mr_sas_node *sas_expander = NULL;
unsigned long flags;
u8 link_rate, prev_link_rate, parent_phy_number;
mpi3mr_sastopochg_evt_debug(mrioc, event_data);
if (mrioc->sas_transport_enabled) {
hba_port = mpi3mr_get_hba_port_by_id(mrioc,
event_data->io_unit_port);
if (le16_to_cpu(event_data->expander_dev_handle)) {
spin_lock_irqsave(&mrioc->sas_node_lock, flags);
sas_expander = __mpi3mr_expander_find_by_handle(mrioc,
le16_to_cpu(event_data->expander_dev_handle));
if (sas_expander) {
exp_sas_address = sas_expander->sas_address;
hba_port = sas_expander->hba_port;
}
spin_unlock_irqrestore(&mrioc->sas_node_lock, flags);
parent_sas_address = exp_sas_address;
} else
parent_sas_address = mrioc->sas_hba.sas_address;
}
for (i = 0; i < event_data->num_entries; i++) {
if (fwevt->discard)
@ -1513,6 +1545,24 @@ static void mpi3mr_sastopochg_evt_bh(struct mpi3mr_ioc *mrioc,
mpi3mr_tgtdev_del_from_list(mrioc, tgtdev);
mpi3mr_tgtdev_put(tgtdev);
break;
case MPI3_EVENT_SAS_TOPO_PHY_RC_RESPONDING:
case MPI3_EVENT_SAS_TOPO_PHY_RC_PHY_CHANGED:
case MPI3_EVENT_SAS_TOPO_PHY_RC_NO_CHANGE:
{
if (!mrioc->sas_transport_enabled || tgtdev->non_stl
|| tgtdev->is_hidden)
break;
link_rate = event_data->phy_entry[i].link_rate >> 4;
prev_link_rate = event_data->phy_entry[i].link_rate & 0xF;
if (link_rate == prev_link_rate)
break;
if (!parent_sas_address)
break;
parent_phy_number = event_data->start_phy_num + i;
mpi3mr_update_links(mrioc, parent_sas_address, handle,
parent_phy_number, link_rate, hba_port);
break;
}
default:
break;
}

158
drivers/scsi/mpi3mr/mpi3mr_transport.c
View file

@ -1652,3 +1652,161 @@ void mpi3mr_expander_remove(struct mpi3mr_ioc *mrioc, u64 sas_address,
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;
}