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scsi: mpt3sas: API's to remove nvme drive from sml

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The following functions are called in nvme drive remove path:

_scsih_pcie_device_remove_by_handle
_scsih_pcie_device_remove_from_sml

[mkp: clarify commit message]

Signed-off-by: Chaitra P B <chaitra.basappa@broadcom.com>
Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Suganath Prabu Subramani 2017-10-31 18:02:31 +05:30 committed by Martin K. Petersen
parent c102e00cf4
commit 3075ac4902
1 changed files with 145 additions and 3 deletions
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148
drivers/scsi/mpt3sas/mpt3sas_scsih.c
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@ -73,6 +73,8 @@ static void _scsih_remove_device(struct MPT3SAS_ADAPTER *ioc,
static int _scsih_add_device(struct MPT3SAS_ADAPTER *ioc, u16 handle,
u8 retry_count, u8 is_pd);
static int _scsih_pcie_add_device(struct MPT3SAS_ADAPTER *ioc, u16 handle);
static void _scsih_pcie_device_remove_from_sml(struct MPT3SAS_ADAPTER *ioc,
struct _pcie_device *pcie_device);
static u8 _scsih_check_for_pending_tm(struct MPT3SAS_ADAPTER *ioc, u16 smid);
/* global parameters */
@ -1126,6 +1128,41 @@ _scsih_pcie_device_remove(struct MPT3SAS_ADAPTER *ioc,
pcie_device_put(pcie_device);
}
}
/**
* _scsih_pcie_device_remove_by_handle - removing pcie device object by handle
* @ioc: per adapter object
* @handle: device handle
*
* Return nothing.
*/
static void
_scsih_pcie_device_remove_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
{
struct _pcie_device *pcie_device;
unsigned long flags;
int was_on_pcie_device_list = 0;
if (ioc->shost_recovery)
return;
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
pcie_device = __mpt3sas_get_pdev_by_handle(ioc, handle);
if (pcie_device) {
if (!list_empty(&pcie_device->list)) {
list_del_init(&pcie_device->list);
was_on_pcie_device_list = 1;
pcie_device_put(pcie_device);
}
}
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
if (was_on_pcie_device_list) {
_scsih_pcie_device_remove_from_sml(ioc, pcie_device);
pcie_device_put(pcie_device);
}
}
/**
* _scsih_pcie_device_add - add pcie_device object
* @ioc: per adapter object
@ -6566,6 +6603,83 @@ _scsih_check_pcie_access_status(struct MPT3SAS_ADAPTER *ioc, u64 wwid,
(unsigned long long)wwid, handle);
return rc;
}
/**
* _scsih_pcie_device_remove_from_sml - removing pcie device
* from SML and free up associated memory
* @ioc: per adapter object
* @pcie_device: the pcie_device object
*
* Return nothing.
*/
static void
_scsih_pcie_device_remove_from_sml(struct MPT3SAS_ADAPTER *ioc,
struct _pcie_device *pcie_device)
{
struct MPT3SAS_TARGET *sas_target_priv_data;
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"%s: enter: handle(0x%04x), wwid(0x%016llx)\n", ioc->name, __func__,
pcie_device->handle, (unsigned long long)
pcie_device->wwid));
if (pcie_device->enclosure_handle != 0)
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"%s: enter: enclosure logical id(0x%016llx), slot(%d)\n",
ioc->name, __func__,
(unsigned long long)pcie_device->enclosure_logical_id,
pcie_device->slot));
if (pcie_device->connector_name[0] != '\0')
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"%s: enter: enclosure level(0x%04x), connector name( %s)\n",
ioc->name, __func__,
pcie_device->enclosure_level,
pcie_device->connector_name));
if (pcie_device->starget && pcie_device->starget->hostdata) {
sas_target_priv_data = pcie_device->starget->hostdata;
sas_target_priv_data->deleted = 1;
_scsih_ublock_io_device(ioc, pcie_device->wwid);
sas_target_priv_data->handle = MPT3SAS_INVALID_DEVICE_HANDLE;
}
pr_info(MPT3SAS_FMT
"removing handle(0x%04x), wwid (0x%016llx)\n",
ioc->name, pcie_device->handle,
(unsigned long long) pcie_device->wwid);
if (pcie_device->enclosure_handle != 0)
pr_info(MPT3SAS_FMT
"removing : enclosure logical id(0x%016llx), slot(%d)\n",
ioc->name,
(unsigned long long)pcie_device->enclosure_logical_id,
pcie_device->slot);
if (pcie_device->connector_name[0] != '\0')
pr_info(MPT3SAS_FMT
"removing: enclosure level(0x%04x), connector name( %s)\n",
ioc->name, pcie_device->enclosure_level,
pcie_device->connector_name);
if (pcie_device->starget)
scsi_remove_target(&pcie_device->starget->dev);
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"%s: exit: handle(0x%04x), wwid(0x%016llx)\n", ioc->name, __func__,
pcie_device->handle, (unsigned long long)
pcie_device->wwid));
if (pcie_device->enclosure_handle != 0)
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"%s: exit: enclosure logical id(0x%016llx), slot(%d)\n",
ioc->name, __func__,
(unsigned long long)pcie_device->enclosure_logical_id,
pcie_device->slot));
if (pcie_device->connector_name[0] != '\0')
dewtprintk(ioc, pr_info(MPT3SAS_FMT
"%s: exit: enclosure level(0x%04x), connector name( %s)\n",
ioc->name, __func__, pcie_device->enclosure_level,
pcie_device->connector_name));
kfree(pcie_device->serial_number);
}
/**
* _scsih_pcie_check_device - checking device responsiveness
* @ioc: per adapter object
@ -8185,17 +8299,18 @@ _scsih_search_responding_expanders(struct MPT3SAS_ADAPTER *ioc)
}
/**
* _scsih_remove_unresponding_sas_devices - removing unresponding devices
* _scsih_remove_unresponding_devices - removing unresponding devices
* @ioc: per adapter object
*
* Return nothing.
*/
static void
_scsih_remove_unresponding_sas_devices(struct MPT3SAS_ADAPTER *ioc)
_scsih_remove_unresponding_devices(struct MPT3SAS_ADAPTER *ioc)
{
struct _sas_device *sas_device, *sas_device_next;
struct _sas_node *sas_expander, *sas_expander_next;
struct _raid_device *raid_device, *raid_device_next;
struct _pcie_device *pcie_device, *pcie_device_next;
struct list_head tmp_list;
unsigned long flags;
LIST_HEAD(head);
@ -8229,6 +8344,26 @@ _scsih_remove_unresponding_sas_devices(struct MPT3SAS_ADAPTER *ioc)
sas_device_put(sas_device);
}
pr_info(MPT3SAS_FMT
" Removing unresponding devices: pcie end-devices\n"
, ioc->name);
INIT_LIST_HEAD(&head);
spin_lock_irqsave(&ioc->pcie_device_lock, flags);
list_for_each_entry_safe(pcie_device, pcie_device_next,
&ioc->pcie_device_list, list) {
if (!pcie_device->responding)
list_move_tail(&pcie_device->list, &head);
else
pcie_device->responding = 0;
}
spin_unlock_irqrestore(&ioc->pcie_device_lock, flags);
list_for_each_entry_safe(pcie_device, pcie_device_next, &head, list) {
_scsih_pcie_device_remove_from_sml(ioc, pcie_device);
list_del_init(&pcie_device->list);
pcie_device_put(pcie_device);
}
/* removing unresponding volumes */
if (ioc->ir_firmware) {
pr_info(MPT3SAS_FMT "removing unresponding devices: volumes\n",
@ -8630,7 +8765,7 @@ _mpt3sas_fw_work(struct MPT3SAS_ADAPTER *ioc, struct fw_event_work *fw_event)
goto out;
ssleep(1);
}
_scsih_remove_unresponding_sas_devices(ioc);
_scsih_remove_unresponding_devices(ioc);
_scsih_scan_for_devices_after_reset(ioc);
break;
case MPT3SAS_PORT_ENABLE_COMPLETE:
@ -9018,6 +9153,7 @@ static void scsih_remove(struct pci_dev *pdev)
struct _sas_port *mpt3sas_port, *next_port;
struct _raid_device *raid_device, *next;
struct MPT3SAS_TARGET *sas_target_priv_data;
struct _pcie_device *pcie_device, *pcienext;
struct workqueue_struct *wq;
unsigned long flags;
@ -9046,6 +9182,12 @@ static void scsih_remove(struct pci_dev *pdev)
(unsigned long long) raid_device->wwid);
_scsih_raid_device_remove(ioc, raid_device);
}
list_for_each_entry_safe(pcie_device, pcienext, &ioc->pcie_device_list,
list) {
_scsih_pcie_device_remove_from_sml(ioc, pcie_device);
list_del_init(&pcie_device->list);
pcie_device_put(pcie_device);
}
/* free ports attached to the sas_host */
list_for_each_entry_safe(mpt3sas_port, next_port,