diff options
Diffstat (limited to 'include/scsi/libfc.h')
| -rw-r--r-- | include/scsi/libfc.h | 45 |
1 files changed, 39 insertions, 6 deletions
diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h index a70eafaad084..0303a6a098cc 100644 --- a/include/scsi/libfc.h +++ b/include/scsi/libfc.h @@ -22,6 +22,7 @@ #include <linux/timer.h> #include <linux/if.h> +#include <linux/percpu.h> #include <scsi/scsi_transport.h> #include <scsi/scsi_transport_fc.h> @@ -661,7 +662,8 @@ struct fc_lport { unsigned long boot_time; struct fc_host_statistics host_stats; - struct fcoe_dev_stats *dev_stats[NR_CPUS]; + struct fcoe_dev_stats *dev_stats; + u64 wwpn; u64 wwnn; u8 retry_count; @@ -694,11 +696,6 @@ struct fc_lport { /* * FC_LPORT HELPER FUNCTIONS *****************************/ -static inline void *lport_priv(const struct fc_lport *lp) -{ - return (void *)(lp + 1); -} - static inline int fc_lport_test_ready(struct fc_lport *lp) { return lp->state == LPORT_ST_READY; @@ -722,6 +719,42 @@ static inline void fc_lport_state_enter(struct fc_lport *lp, lp->state = state; } +static inline int fc_lport_init_stats(struct fc_lport *lp) +{ + /* allocate per cpu stats block */ + lp->dev_stats = alloc_percpu(struct fcoe_dev_stats); + if (!lp->dev_stats) + return -ENOMEM; + return 0; +} + +static inline void fc_lport_free_stats(struct fc_lport *lp) +{ + free_percpu(lp->dev_stats); +} + +static inline struct fcoe_dev_stats *fc_lport_get_stats(struct fc_lport *lp) +{ + return per_cpu_ptr(lp->dev_stats, smp_processor_id()); +} + +static inline void *lport_priv(const struct fc_lport *lp) +{ + return (void *)(lp + 1); +} + +/** + * libfc_host_alloc() - Allocate a Scsi_Host with room for the fc_lport + * @sht: ptr to the scsi host templ + * @priv_size: size of private data after fc_lport + * + * Returns: ptr to Scsi_Host + */ +static inline struct Scsi_Host * +libfc_host_alloc(struct scsi_host_template *sht, int priv_size) +{ + return scsi_host_alloc(sht, sizeof(struct fc_lport) + priv_size); +} /* * LOCAL PORT LAYER |