When device is registered with the STL then
get the corresponding device's target object
using the rphy in below callback functions,
- mpi3mr_target_alloc,
- mpi3mr_slave_alloc,
- mpi3mr_slave_configure,
- mpi3mr_slave_destroy
Reviewed-by: Himanshu Madhani <himanshu.madhani@xxxxxxxxxx>
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@xxxxxxxxxxxx>
---
drivers/scsi/mpi3mr/mpi3mr.h | 4 ++
drivers/scsi/mpi3mr/mpi3mr_fw.c | 2 +
drivers/scsi/mpi3mr/mpi3mr_os.c | 61 +++++++++++++++++++++-----
drivers/scsi/mpi3mr/mpi3mr_transport.c | 29 ++++++++++++
4 files changed, 86 insertions(+), 10 deletions(-)
diff --git a/drivers/scsi/mpi3mr/mpi3mr.h b/drivers/scsi/mpi3mr/mpi3mr.h
index 9cd5f88..a91a57b 100644
--- a/drivers/scsi/mpi3mr/mpi3mr.h
+++ b/drivers/scsi/mpi3mr/mpi3mr.h
@@ -997,6 +997,7 @@ struct scmd_priv {
* @cfg_page_dma: Configuration page DMA address
* @cfg_page_sz: Default configuration page memory size
* @sas_transport_enabled: SAS transport enabled or not
+ * @scsi_device_channel: Channel ID for SCSI devices
* @sas_hba: SAS node for the controller
* @sas_expander_list: SAS node list of expanders
* @sas_node_lock: Lock to protect SAS node list
@@ -1180,6 +1181,7 @@ struct mpi3mr_ioc {
u16 cfg_page_sz;
u8 sas_transport_enabled;
+ u8 scsi_device_channel;
struct mpi3mr_sas_node sas_hba;
struct list_head sas_expander_list;
spinlock_t sas_node_lock;
@@ -1355,6 +1357,8 @@ 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);
+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,
bool device_add);
#endif /*MPI3MR_H_INCLUDED*/
diff --git a/drivers/scsi/mpi3mr/mpi3mr_fw.c b/drivers/scsi/mpi3mr/mpi3mr_fw.c
index 8af43c5..295ad8c 100644
--- a/drivers/scsi/mpi3mr/mpi3mr_fw.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_fw.c
@@ -3745,6 +3745,8 @@ retry_init:
if (!(mrioc->facts.ioc_capabilities &
MPI3_IOCFACTS_CAPABILITY_MULTIPATH_ENABLED)) {
mrioc->sas_transport_enabled = 1;
+ mrioc->scsi_device_channel = 1;
+ mrioc->shost->max_channel = 1;
}
mrioc->reply_sz = mrioc->facts.reply_sz;
diff --git a/drivers/scsi/mpi3mr/mpi3mr_os.c b/drivers/scsi/mpi3mr/mpi3mr_os.c
index 9a32dc6..aed9b60 100644
--- a/drivers/scsi/mpi3mr/mpi3mr_os.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_os.c
@@ -4031,9 +4031,10 @@ static void mpi3mr_slave_destroy(struct scsi_device *sdev)
struct Scsi_Host *shost;
struct mpi3mr_ioc *mrioc;
struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data;
- struct mpi3mr_tgt_dev *tgt_dev;
+ struct mpi3mr_tgt_dev *tgt_dev = NULL;
unsigned long flags;
struct scsi_target *starget;
+ struct sas_rphy *rphy = NULL;
if (!sdev->hostdata)
return;
@@ -4046,7 +4047,14 @@ static void mpi3mr_slave_destroy(struct scsi_device *sdev)
scsi_tgt_priv_data->num_luns--;
spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
- tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id);
+ if (starget->channel == mrioc->scsi_device_channel)
+ tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id);
+ else if (mrioc->sas_transport_enabled && !starget->channel) {
+ rphy = dev_to_rphy(starget->dev.parent);
+ tgt_dev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc,
+ rphy->identify.sas_address, rphy);
+ }
+
if (tgt_dev && (!scsi_tgt_priv_data->num_luns))
tgt_dev->starget = NULL;
if (tgt_dev)
@@ -4111,16 +4119,23 @@ static int mpi3mr_slave_configure(struct scsi_device *sdev)
struct scsi_target *starget;
struct Scsi_Host *shost;
struct mpi3mr_ioc *mrioc;
- struct mpi3mr_tgt_dev *tgt_dev;
+ struct mpi3mr_tgt_dev *tgt_dev = NULL;
unsigned long flags;
int retval = 0;
+ struct sas_rphy *rphy = NULL;
starget = scsi_target(sdev);
shost = dev_to_shost(&starget->dev);
mrioc = shost_priv(shost);
spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
- tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id);
+ if (starget->channel == mrioc->scsi_device_channel)
+ tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id);
+ else if (mrioc->sas_transport_enabled && !starget->channel) {
+ rphy = dev_to_rphy(starget->dev.parent);
+ tgt_dev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc,
+ rphy->identify.sas_address, rphy);
+ }
spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
if (!tgt_dev)
return -ENXIO;
@@ -4168,11 +4183,12 @@ static int mpi3mr_slave_alloc(struct scsi_device *sdev)
struct Scsi_Host *shost;
struct mpi3mr_ioc *mrioc;
struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data;
- struct mpi3mr_tgt_dev *tgt_dev;
+ struct mpi3mr_tgt_dev *tgt_dev = NULL;
struct mpi3mr_sdev_priv_data *scsi_dev_priv_data;
unsigned long flags;
struct scsi_target *starget;
int retval = 0;
+ struct sas_rphy *rphy = NULL;
starget = scsi_target(sdev);
shost = dev_to_shost(&starget->dev);
@@ -4180,7 +4196,14 @@ static int mpi3mr_slave_alloc(struct scsi_device *sdev)
scsi_tgt_priv_data = starget->hostdata;
spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
- tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id);
+
+ if (starget->channel == mrioc->scsi_device_channel)
+ tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id);
+ else if (mrioc->sas_transport_enabled && !starget->channel) {
+ rphy = dev_to_rphy(starget->dev.parent);
+ tgt_dev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc,
+ rphy->identify.sas_address, rphy);
+ }
if (tgt_dev) {
if (tgt_dev->starget == NULL)
@@ -4223,6 +4246,8 @@ static int mpi3mr_target_alloc(struct scsi_target *starget)
struct mpi3mr_tgt_dev *tgt_dev;
unsigned long flags;
int retval = 0;
+ struct sas_rphy *rphy = NULL;
+ bool update_stgt_priv_data = false;
scsi_tgt_priv_data = kzalloc(sizeof(*scsi_tgt_priv_data), GFP_KERNEL);
if (!scsi_tgt_priv_data)
@@ -4231,8 +4256,25 @@ static int mpi3mr_target_alloc(struct scsi_target *starget)
starget->hostdata = scsi_tgt_priv_data;
spin_lock_irqsave(&mrioc->tgtdev_lock, flags);
- tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id);
- if (tgt_dev && !tgt_dev->is_hidden) {
+
+ if (starget->channel == mrioc->scsi_device_channel) {
+ tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, starget->id);
+ if (tgt_dev && !tgt_dev->is_hidden)
+ update_stgt_priv_data = true;
+ else
+ retval = -ENXIO;
+ } else if (mrioc->sas_transport_enabled && !starget->channel) {
+ rphy = dev_to_rphy(starget->dev.parent);
+ tgt_dev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc,
+ rphy->identify.sas_address, rphy);
+ if (tgt_dev && !tgt_dev->is_hidden && !tgt_dev->non_stl &&
+ (tgt_dev->dev_type == MPI3_DEVICE_DEVFORM_SAS_SATA))
+ update_stgt_priv_data = true;
+ else
+ retval = -ENXIO;
+ }
+
+ if (update_stgt_priv_data) {
scsi_tgt_priv_data->starget = starget;
scsi_tgt_priv_data->dev_handle = tgt_dev->dev_handle;
scsi_tgt_priv_data->perst_id = tgt_dev->perst_id;
@@ -4246,8 +4288,7 @@ static int mpi3mr_target_alloc(struct scsi_target *starget)
if (tgt_dev->dev_type == MPI3_DEVICE_DEVFORM_VD)
scsi_tgt_priv_data->throttle_group =
tgt_dev->dev_spec.vd_inf.tg;
- } else
- retval = -ENXIO;
+ }
spin_unlock_irqrestore(&mrioc->tgtdev_lock, flags);
return retval;
diff --git a/drivers/scsi/mpi3mr/mpi3mr_transport.c b/drivers/scsi/mpi3mr/mpi3mr_transport.c
index ff85cf3..48cee03 100644
--- a/drivers/scsi/mpi3mr/mpi3mr_transport.c
+++ b/drivers/scsi/mpi3mr/mpi3mr_transport.c
@@ -198,6 +198,35 @@ static void mpi3mr_remove_device_by_sas_address(struct mpi3mr_ioc *mrioc,
}
}
+/**
+ * __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
--
2.27.0
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