scsi: lpfc: vmid: Add datastructure for supporting VMID in lpfc
Add the primary datastructures needed to implement VMID in the lpfc driver. Maintain the capability, current state, and hash table for the vmid/appid along with other information. This implementation supports the two versions of vmid implementation (app header and priority tagging). Link: https://lore.kernel.org/r/20210608043556.274139-5-muneendra.kumar@broadcom.com Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Gaurav Srivastava <gaurav.srivastava@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Signed-off-by: Muneendra Kumar <muneendra.kumar@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Gaurav Srivastava
Martin K. Petersen
parent
3dbbca75ed
commit
02169e845d
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@ -304,6 +304,64 @@ struct lpfc_stats {
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struct lpfc_hba;
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#define LPFC_VMID_TIMER 300 /* timer interval in seconds */
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#define LPFC_MAX_VMID_SIZE 256
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#define LPFC_COMPRESS_VMID_SIZE 16
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union lpfc_vmid_io_tag {
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u32 app_id; /* App Id vmid */
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u8 cs_ctl_vmid; /* Priority tag vmid */
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};
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#define JIFFIES_PER_HR (HZ * 60 * 60)
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struct lpfc_vmid {
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u8 flag;
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#define LPFC_VMID_SLOT_FREE 0x0
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#define LPFC_VMID_SLOT_USED 0x1
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#define LPFC_VMID_REQ_REGISTER 0x2
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#define LPFC_VMID_REGISTERED 0x4
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#define LPFC_VMID_DE_REGISTER 0x8
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char host_vmid[LPFC_MAX_VMID_SIZE];
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union lpfc_vmid_io_tag un;
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struct hlist_node hnode;
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u64 io_rd_cnt;
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u64 io_wr_cnt;
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u8 vmid_len;
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u8 delete_inactive; /* Delete if inactive flag 0 = no, 1 = yes */
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u32 hash_index;
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u64 __percpu *last_io_time;
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};
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#define lpfc_vmid_is_type_priority_tag(vport)\
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(vport->vmid_priority_tagging ? 1 : 0)
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#define LPFC_VMID_HASH_SIZE 256
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#define LPFC_VMID_HASH_MASK 255
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#define LPFC_VMID_HASH_SHIFT 6
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struct lpfc_vmid_context {
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struct lpfc_vmid *vmp;
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struct lpfc_nodelist *nlp;
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bool instantiated;
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};
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struct lpfc_vmid_priority_range {
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u8 low;
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u8 high;
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u8 qos;
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};
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struct lpfc_vmid_priority_info {
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u32 num_descriptors;
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struct lpfc_vmid_priority_range *vmid_range;
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};
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#define QFPA_EVEN_ONLY 0x01
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#define QFPA_ODD_ONLY 0x02
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#define QFPA_EVEN_ODD 0x03
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enum discovery_state {
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LPFC_VPORT_UNKNOWN = 0, /* vport state is unknown */
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LPFC_VPORT_FAILED = 1, /* vport has failed */
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@ -443,6 +501,9 @@ struct lpfc_vport {
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#define WORKER_RAMP_DOWN_QUEUE 0x800 /* hba: Decrease Q depth */
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#define WORKER_RAMP_UP_QUEUE 0x1000 /* hba: Increase Q depth */
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#define WORKER_SERVICE_TXQ 0x2000 /* hba: IOCBs on the txq */
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#define WORKER_CHECK_INACTIVE_VMID 0x4000 /* hba: check inactive vmids */
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#define WORKER_CHECK_VMID_ISSUE_QFPA 0x8000 /* vport: Check if qfpa needs
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* to be issued */
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struct timer_list els_tmofunc;
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struct timer_list delayed_disc_tmo;
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@ -453,6 +514,8 @@ struct lpfc_vport {
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#define FC_LOADING 0x1 /* HBA in process of loading drvr */
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#define FC_UNLOADING 0x2 /* HBA in process of unloading drvr */
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#define FC_ALLOW_FDMI 0x4 /* port is ready for FDMI requests */
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#define FC_ALLOW_VMID 0x8 /* Allow VMID I/Os */
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#define FC_DEREGISTER_ALL_APP_ID 0x10 /* Deregister all VMIDs */
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/* Vport Config Parameters */
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uint32_t cfg_scan_down;
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uint32_t cfg_lun_queue_depth;
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@ -471,9 +534,36 @@ struct lpfc_vport {
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uint32_t cfg_tgt_queue_depth;
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uint32_t cfg_first_burst_size;
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uint32_t dev_loss_tmo_changed;
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/* VMID parameters */
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u8 lpfc_vmid_host_uuid[LPFC_COMPRESS_VMID_SIZE];
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u32 max_vmid; /* maximum VMIDs allowed per port */
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u32 cur_vmid_cnt; /* Current VMID count */
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#define LPFC_MIN_VMID 4
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#define LPFC_MAX_VMID 255
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u32 vmid_inactivity_timeout; /* Time after which the VMID */
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/* deregisters from switch */
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u32 vmid_priority_tagging;
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#define LPFC_VMID_PRIO_TAG_DISABLE 0 /* Disable */
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#define LPFC_VMID_PRIO_TAG_SUP_TARGETS 1 /* Allow supported targets only */
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#define LPFC_VMID_PRIO_TAG_ALL_TARGETS 2 /* Allow all targets */
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unsigned long *vmid_priority_range;
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#define LPFC_VMID_MAX_PRIORITY_RANGE 256
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#define LPFC_VMID_PRIORITY_BITMAP_SIZE 32
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u8 vmid_flag;
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#define LPFC_VMID_IN_USE 0x1
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#define LPFC_VMID_ISSUE_QFPA 0x2
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#define LPFC_VMID_QFPA_CMPL 0x4
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#define LPFC_VMID_QOS_ENABLED 0x8
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#define LPFC_VMID_TIMER_ENBLD 0x10
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struct fc_qfpa_res *qfpa_res;
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struct fc_vport *fc_vport;
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struct lpfc_vmid *vmid;
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DECLARE_HASHTABLE(hash_table, 8);
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rwlock_t vmid_lock;
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struct lpfc_vmid_priority_info vmid_priority;
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#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
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struct dentry *debug_disc_trc;
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struct dentry *debug_nodelist;
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@ -940,6 +1030,13 @@ struct lpfc_hba {
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struct nvmet_fc_target_port *targetport;
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lpfc_vpd_t vpd; /* vital product data */
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u32 cfg_max_vmid; /* maximum VMIDs allowed per port */
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u32 cfg_vmid_app_header;
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#define LPFC_VMID_APP_HEADER_DISABLE 0
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#define LPFC_VMID_APP_HEADER_ENABLE 1
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u32 cfg_vmid_priority_tagging;
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u32 cfg_vmid_inactivity_timeout; /* Time after which the VMID */
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/* deregisters from switch */
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struct pci_dev *pcidev;
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struct list_head work_list;
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uint32_t work_ha; /* Host Attention Bits for WT */
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@ -1180,6 +1277,7 @@ struct lpfc_hba {
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struct list_head ct_ev_waiters;
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struct unsol_rcv_ct_ctx ct_ctx[LPFC_CT_CTX_MAX];
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uint32_t ctx_idx;
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struct timer_list inactive_vmid_poll;
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/* RAS Support */
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struct lpfc_ras_fwlog ras_fwlog;
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@ -1421,3 +1519,27 @@ static const char *routine(enum enum_name table_key) \
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} \
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return name; \
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}
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/**
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* lpfc_is_vmid_enabled - returns if VMID is enabled for either switch types
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* @phba: Pointer to HBA context object.
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*
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* Relationship between the enable, target support and if vmid tag is required
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* for the particular combination
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* ---------------------------------------------------
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* Switch Enable Flag Target Support VMID Needed
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* ---------------------------------------------------
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* App Id 0 NA N
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* App Id 1 0 N
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* App Id 1 1 Y
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* Pr Tag 0 NA N
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* Pr Tag 1 0 N
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* Pr Tag 1 1 Y
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* Pr Tag 2 * Y
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---------------------------------------------------
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*
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**/
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static inline int lpfc_is_vmid_enabled(struct lpfc_hba *phba)
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{
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return phba->cfg_vmid_app_header || phba->cfg_vmid_priority_tagging;
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}
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@ -608,3 +608,14 @@ extern unsigned long lpfc_no_hba_reset[];
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extern union lpfc_wqe128 lpfc_iread_cmd_template;
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extern union lpfc_wqe128 lpfc_iwrite_cmd_template;
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extern union lpfc_wqe128 lpfc_icmnd_cmd_template;
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/* vmid interface */
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int lpfc_vmid_uvem(struct lpfc_vport *vport, struct lpfc_vmid *vmid, bool ins);
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uint32_t lpfc_vmid_get_cs_ctl(struct lpfc_vport *vport);
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int lpfc_vmid_cmd(struct lpfc_vport *vport,
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int cmdcode, struct lpfc_vmid *vmid);
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int lpfc_vmid_hash_fn(const char *vmid, int len);
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struct lpfc_vmid *lpfc_get_vmid_from_hashtable(struct lpfc_vport *vport,
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uint32_t hash, uint8_t *buf);
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void lpfc_vmid_vport_cleanup(struct lpfc_vport *vport);
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int lpfc_issue_els_qfpa(struct lpfc_vport *vport);
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@ -125,6 +125,7 @@ struct lpfc_nodelist {
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uint8_t nlp_fcp_info; /* class info, bits 0-3 */
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#define NLP_FCP_2_DEVICE 0x10 /* FCP-2 device */
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u8 nlp_nvme_info; /* NVME NSLER Support */
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uint8_t vmid_support; /* destination VMID support */
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#define NLP_NVME_NSLER 0x1 /* NVME NSLER device */
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struct timer_list nlp_delayfunc; /* Used for delayed ELS cmds */
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@ -275,6 +275,7 @@ struct lpfc_sli_ct_request {
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#define SLI_CT_ACCESS_DENIED 0x10
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#define SLI_CT_INVALID_PORT_ID 0x11
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#define SLI_CT_DATABASE_EMPTY 0x12
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#define SLI_CT_APP_ID_NOT_AVAILABLE 0x40
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/*
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* Name Server Command Codes
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@ -400,16 +401,16 @@ struct csp {
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uint16_t altBbCredit:1; /* FC Word 1, bit 27 */
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uint16_t edtovResolution:1; /* FC Word 1, bit 26 */
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uint16_t multicast:1; /* FC Word 1, bit 25 */
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uint16_t broadcast:1; /* FC Word 1, bit 24 */
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uint16_t app_hdr_support:1; /* FC Word 1, bit 24 */
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uint16_t huntgroup:1; /* FC Word 1, bit 23 */
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uint16_t priority_tagging:1; /* FC Word 1, bit 23 */
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uint16_t simplex:1; /* FC Word 1, bit 22 */
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uint16_t word1Reserved1:3; /* FC Word 1, bit 21:19 */
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uint16_t dhd:1; /* FC Word 1, bit 18 */
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uint16_t contIncSeqCnt:1; /* FC Word 1, bit 17 */
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uint16_t payloadlength:1; /* FC Word 1, bit 16 */
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#else /* __LITTLE_ENDIAN_BITFIELD */
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uint16_t broadcast:1; /* FC Word 1, bit 24 */
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uint16_t app_hdr_support:1; /* FC Word 1, bit 24 */
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uint16_t multicast:1; /* FC Word 1, bit 25 */
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uint16_t edtovResolution:1; /* FC Word 1, bit 26 */
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uint16_t altBbCredit:1; /* FC Word 1, bit 27 */
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@ -423,7 +424,7 @@ struct csp {
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uint16_t dhd:1; /* FC Word 1, bit 18 */
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uint16_t word1Reserved1:3; /* FC Word 1, bit 21:19 */
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uint16_t simplex:1; /* FC Word 1, bit 22 */
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uint16_t huntgroup:1; /* FC Word 1, bit 23 */
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uint16_t priority_tagging:1; /* FC Word 1, bit 23 */
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#endif
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uint8_t bbRcvSizeMsb; /* Upper nibble is reserved */
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@ -607,6 +608,8 @@ struct fc_vft_header {
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#define ELS_CMD_LIRR 0x7A000000
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#define ELS_CMD_LCB 0x81000000
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#define ELS_CMD_FPIN 0x16000000
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#define ELS_CMD_QFPA 0xB0000000
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#define ELS_CMD_UVEM 0xB1000000
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#else /* __LITTLE_ENDIAN_BITFIELD */
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#define ELS_CMD_MASK 0xffff
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#define ELS_RSP_MASK 0xff
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@ -649,6 +652,8 @@ struct fc_vft_header {
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#define ELS_CMD_LIRR 0x7A
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#define ELS_CMD_LCB 0x81
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#define ELS_CMD_FPIN ELS_FPIN
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#define ELS_CMD_QFPA 0xB0
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#define ELS_CMD_UVEM 0xB1
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#endif
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/*
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@ -1317,6 +1322,117 @@ struct fc_rdp_res_frame {
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};
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/* UVEM */
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#define LPFC_UVEM_SIZE 60
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#define LPFC_UVEM_VEM_ID_DESC_SIZE 16
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#define LPFC_UVEM_VE_MAP_DESC_SIZE 20
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#define VEM_ID_DESC_TAG 0x0001000A
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struct lpfc_vem_id_desc {
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uint32_t tag;
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uint32_t length;
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uint8_t vem_id[16];
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};
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#define LPFC_QFPA_SIZE 4
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#define INSTANTIATED_VE_DESC_TAG 0x0001000B
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struct instantiated_ve_desc {
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uint32_t tag;
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uint32_t length;
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uint8_t global_vem_id[16];
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uint32_t word6;
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#define lpfc_instantiated_local_id_SHIFT 0
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#define lpfc_instantiated_local_id_MASK 0x000000ff
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#define lpfc_instantiated_local_id_WORD word6
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#define lpfc_instantiated_nport_id_SHIFT 8
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#define lpfc_instantiated_nport_id_MASK 0x00ffffff
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#define lpfc_instantiated_nport_id_WORD word6
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};
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#define DEINSTANTIATED_VE_DESC_TAG 0x0001000C
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struct deinstantiated_ve_desc {
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uint32_t tag;
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uint32_t length;
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uint8_t global_vem_id[16];
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uint32_t word6;
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#define lpfc_deinstantiated_nport_id_SHIFT 0
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#define lpfc_deinstantiated_nport_id_MASK 0x000000ff
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#define lpfc_deinstantiated_nport_id_WORD word6
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#define lpfc_deinstantiated_local_id_SHIFT 24
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#define lpfc_deinstantiated_local_id_MASK 0x00ffffff
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#define lpfc_deinstantiated_local_id_WORD word6
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};
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/* Query Fabric Priority Allocation Response */
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#define LPFC_PRIORITY_RANGE_DESC_SIZE 12
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struct priority_range_desc {
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uint32_t tag;
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uint32_t length;
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uint8_t lo_range;
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uint8_t hi_range;
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uint8_t qos_priority;
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uint8_t local_ve_id;
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};
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struct fc_qfpa_res {
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uint32_t reply_sequence; /* LS_ACC or LS_RJT */
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uint32_t length; /* FC Word 1 */
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struct priority_range_desc desc[1];
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};
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/* Application Server command code */
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/* VMID */
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#define SLI_CT_APP_SEV_Subtypes 0x20 /* Application Server subtype */
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#define SLI_CTAS_GAPPIA_ENT 0x0100 /* Get Application Identifier */
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#define SLI_CTAS_GALLAPPIA 0x0101 /* Get All Application Identifier */
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#define SLI_CTAS_GALLAPPIA_ID 0x0102 /* Get All Application Identifier */
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/* for Nport */
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#define SLI_CTAS_GAPPIA_IDAPP 0x0103 /* Get Application Identifier */
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/* for Nport */
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#define SLI_CTAS_RAPP_IDENT 0x0200 /* Register Application Identifier */
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#define SLI_CTAS_DAPP_IDENT 0x0300 /* Deregister Application */
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/* Identifier */
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#define SLI_CTAS_DALLAPP_ID 0x0301 /* Deregister All Application */
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/* Identifier */
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struct entity_id_object {
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uint8_t entity_id_len;
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uint8_t entity_id[255]; /* VM UUID */
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};
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struct app_id_object {
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uint32_t port_id;
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uint32_t app_id;
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struct entity_id_object obj;
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};
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struct lpfc_vmid_rapp_ident_list {
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uint32_t no_of_objects;
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struct entity_id_object obj[1];
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};
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struct lpfc_vmid_dapp_ident_list {
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uint32_t no_of_objects;
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struct entity_id_object obj[1];
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};
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#define GALLAPPIA_ID_LAST 0x80
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struct lpfc_vmid_gallapp_ident_list {
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uint8_t control;
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uint8_t reserved[3];
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struct app_id_object app_id;
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};
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#define RAPP_IDENT_OFFSET (offsetof(struct lpfc_sli_ct_request, un) + 4)
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#define DAPP_IDENT_OFFSET (offsetof(struct lpfc_sli_ct_request, un) + 4)
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#define GALLAPPIA_ID_SIZE (offsetof(struct lpfc_sli_ct_request, un) + 4)
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#define DALLAPP_ID_SIZE (offsetof(struct lpfc_sli_ct_request, un) + 4)
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/******** FDMI ********/
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/* lpfc_sli_ct_request defines the CT_IU preamble for FDMI commands */
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@ -35,6 +35,12 @@ typedef enum _lpfc_ctx_cmd {
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LPFC_CTX_HOST
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} lpfc_ctx_cmd;
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union lpfc_vmid_iocb_tag {
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uint32_t app_id;
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uint8_t cs_ctl_vmid;
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struct lpfc_vmid_context *vmid_context; /* UVEM context information */
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};
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struct lpfc_cq_event {
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struct list_head list;
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uint16_t hdwq;
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@ -100,6 +106,7 @@ struct lpfc_iocbq {
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#define LPFC_IO_NVME 0x200000 /* NVME FCP command */
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#define LPFC_IO_NVME_LS 0x400000 /* NVME LS command */
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#define LPFC_IO_NVMET 0x800000 /* NVMET command */
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#define LPFC_IO_VMID 0x1000000 /* VMID tagged IO */
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uint32_t drvrTimeout; /* driver timeout in seconds */
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struct lpfc_vport *vport;/* virtual port pointer */
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@ -115,6 +122,7 @@ struct lpfc_iocbq {
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struct lpfc_node_rrq *rrq;
|
||||
} context_un;
|
||||
|
||||
union lpfc_vmid_iocb_tag vmid_tag;
|
||||
void (*fabric_iocb_cmpl)(struct lpfc_hba *, struct lpfc_iocbq *,
|
||||
struct lpfc_iocbq *);
|
||||
void (*wait_iocb_cmpl)(struct lpfc_hba *, struct lpfc_iocbq *,
|
||||
|
|
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|||
Loading…
Reference in New Issue