[SCSI] zfcp: Improve request allocation through mempools
Remove the special case for NO_QTCB requests and optimize the
mempool and cache processing for fsfreqs. Especially use seperate
mempools for the zfcp_fsf_req and zfcp_qtcb structs.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h
index 944f677..1e27ed5 100644
--- a/drivers/s390/scsi/zfcp_def.h
+++ b/drivers/s390/scsi/zfcp_def.h
@@ -264,12 +264,13 @@
/* holds various memory pools of an adapter */
struct zfcp_adapter_mempool {
- mempool_t *fsf_req_erp;
- mempool_t *fsf_req_scsi;
- mempool_t *fsf_req_abort;
- mempool_t *fsf_req_status_read;
- mempool_t *data_status_read;
- mempool_t *data_gid_pn;
+ mempool_t *erp_req;
+ mempool_t *scsi_req;
+ mempool_t *scsi_abort;
+ mempool_t *status_read_req;
+ mempool_t *status_read_data;
+ mempool_t *gid_pn_data;
+ mempool_t *qtcb_pool;
};
/*
@@ -303,6 +304,15 @@
u32 d_id;
} __attribute__ ((packed));
+struct ct_iu_gpn_ft_req {
+ struct ct_hdr header;
+ u8 flags;
+ u8 domain_id_scope;
+ u8 area_id_scope;
+ u8 fc4_type;
+} __attribute__ ((packed));
+
+
/**
* struct zfcp_send_ct - used to pass parameters to function zfcp_fsf_send_ct
* @wka_port: port where the request is sent to
@@ -559,18 +569,13 @@
lists */
struct semaphore config_sema; /* serialises configuration
changes */
- struct kmem_cache *fsf_req_qtcb_cache;
+ struct kmem_cache *gpn_ft_cache;
+ struct kmem_cache *qtcb_cache;
struct kmem_cache *sr_buffer_cache;
struct kmem_cache *gid_pn_cache;
struct workqueue_struct *work_queue;
};
-/* struct used by memory pools for fsf_requests */
-struct zfcp_fsf_req_qtcb {
- struct zfcp_fsf_req fsf_req;
- struct fsf_qtcb qtcb;
-};
-
/********************** ZFCP SPECIFIC DEFINES ********************************/
#define ZFCP_SET 0x00000100