scsi: mpt3sas: Define hba_port structure

Define a new hba_port structure which holds the following variables:

 - port_id: Port ID of the narrow/wide port of the HBA

 - sas_address: SAS Address of the remote device that is attached to the
   current HBA port

 - phy_mask: HBA's phy bits to which above SAS addressed device is attached

 - flags: This field is used to refresh port details during HBA reset

Link: https://lore.kernel.org/r/20201027130847.9962-2-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.h b/drivers/scsi/mpt3sas/mpt3sas_base.h
index bc8beb10f3fc36e42ae596137d789288b9c7e026..2dde574ccff2e3e7e8e996f35ad69001eb1f0607 100644 (file)
--- a/drivers/scsi/mpt3sas/mpt3sas_base.h
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.h
@@ -420,6 +420,7 @@ struct Mpi2ManufacturingPage11_t {
  * @flags: MPT_TARGET_FLAGS_XXX flags
  * @deleted: target flaged for deletion
  * @tm_busy: target is busy with TM request.
+ * @port: hba port entry containing target's port number info
  * @sas_dev: The sas_device associated with this target
  * @pcie_dev: The pcie device associated with this target
  */
@@ -432,6 +433,7 @@ struct MPT3SAS_TARGET {
        u32     flags;
        u8      deleted;
        u8      tm_busy;
+       struct hba_port *port;
        struct _sas_device *sas_dev;
        struct _pcie_device *pcie_dev;
 };
@@ -534,6 +536,7 @@ struct _internal_cmd {
  *     addition routine.
  * @chassis_slot: chassis slot
  * @is_chassis_slot_valid: chassis slot valid or not
+ * @port: hba port entry containing device's port number info
  */
 struct _sas_device {
        struct list_head list;
@@ -560,6 +563,7 @@ struct _sas_device {
        u8      is_chassis_slot_valid;
        u8      connector_name[5];
        struct kref refcount;
+       struct hba_port *port;
 };
 
 static inline void sas_device_get(struct _sas_device *s)
@@ -730,6 +734,7 @@ struct _boot_device {
  * @remote_identify: attached device identification
  * @rphy: sas transport rphy object
  * @port: sas transport wide/narrow port object
+ * @hba_port: hba port entry containing port's port number info
  * @phy_list: _sas_phy list objects belonging to this port
  */
 struct _sas_port {
@@ -738,6 +743,7 @@ struct _sas_port {
        struct sas_identify remote_identify;
        struct sas_rphy *rphy;
        struct sas_port *port;
+       struct hba_port *hba_port;
        struct list_head phy_list;
 };
 
@@ -751,6 +757,7 @@ struct _sas_port {
  * @handle: device handle for this phy
  * @attached_handle: device handle for attached device
  * @phy_belongs_to_port: port has been created for this phy
+ * @port: hba port entry containing port number info
  */
 struct _sas_phy {
        struct list_head port_siblings;
@@ -761,6 +768,7 @@ struct _sas_phy {
        u16     handle;
        u16     attached_handle;
        u8      phy_belongs_to_port;
+       struct hba_port *port;
 };
 
 /**
@@ -776,6 +784,7 @@ struct _sas_phy {
  * @responding: used in _scsih_expander_device_mark_responding
  * @phy: a list of phys that make up this sas_host/expander
  * @sas_port_list: list of ports attached to this sas_host/expander
+ * @port: hba port entry containing node's port number info
  */
 struct _sas_node {
        struct list_head list;
@@ -787,11 +796,11 @@ struct _sas_node {
        u16     enclosure_handle;
        u64     enclosure_logical_id;
        u8      responding;
+       struct hba_port *port;
        struct  _sas_phy *phy;
        struct list_head sas_port_list;
 };
 
-
 /**
  * struct _enclosure_node - enclosure information
  * @list: list of enclosures
@@ -1009,6 +1018,27 @@ struct reply_post_struct {
        dma_addr_t                      reply_post_free_dma;
 };
 
+/**
+ * struct hba_port - Saves each HBA's Wide/Narrow port info
+ * @sas_address: sas address of this wide/narrow port's attached device
+ * @phy_mask: HBA PHY's belonging to this port
+ * @port_id: port number
+ * @flags: hba port flags
+ */
+struct hba_port {
+       struct list_head list;
+       u64     sas_address;
+       u32     phy_mask;
+       u8      port_id;
+       u8      flags;
+};
+
+/* hba port flags */
+#define HBA_PORT_FLAG_DIRTY_PORT       0x01
+#define HBA_PORT_FLAG_NEW_PORT         0x02
+
+#define MULTIPATH_DISABLED_PORT_ID     0xFF
+
 typedef void (*MPT3SAS_FLUSH_RUNNING_CMDS)(struct MPT3SAS_ADAPTER *ioc);
 /**
  * struct MPT3SAS_ADAPTER - per adapter struct
@@ -1191,6 +1221,7 @@ typedef void (*MPT3SAS_FLUSH_RUNNING_CMDS)(struct MPT3SAS_ADAPTER *ioc);
  *     which ensures the syncrhonization between cli/sysfs_show path.
  * @atomic_desc_capable: Atomic Request Descriptor support.
  * @GET_MSIX_INDEX: Get the msix index of high iops queues.
+ * @port_table_list: list containing HBA's wide/narrow port's info
  */
 struct MPT3SAS_ADAPTER {
        struct list_head list;
@@ -1483,6 +1514,8 @@ struct MPT3SAS_ADAPTER {
        PUT_SMID_IO_FP_HIP put_smid_hi_priority;
        PUT_SMID_DEFAULT put_smid_default;
        GET_MSIX_INDEX get_msix_index_for_smlio;
+
+       struct list_head port_table_list;
 };
 
 struct mpt3sas_debugfs_buffer {