diff options
| -rw-r--r-- | drivers/s390/scsi/zfcp_aux.c | 8 | ||||
| -rw-r--r-- | drivers/s390/scsi/zfcp_def.h | 1 | ||||
| -rw-r--r-- | drivers/s390/scsi/zfcp_fc.c | 87 | ||||
| -rw-r--r-- | drivers/s390/scsi/zfcp_fc.h | 26 |
4 files changed, 35 insertions, 87 deletions
diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c index 6d2beb6ad9ee..324fb1aab6f5 100644 --- a/drivers/s390/scsi/zfcp_aux.c +++ b/drivers/s390/scsi/zfcp_aux.c @@ -122,11 +122,6 @@ static int __init zfcp_module_init(void) { int retval = -ENOMEM; - zfcp_data.gpn_ft_cache = zfcp_cache_hw_align("zfcp_gpn", - sizeof(struct zfcp_fc_gpn_ft_req)); - if (!zfcp_data.gpn_ft_cache) - goto out; - zfcp_data.qtcb_cache = zfcp_cache_hw_align("zfcp_qtcb", sizeof(struct fsf_qtcb)); if (!zfcp_data.qtcb_cache) @@ -171,8 +166,6 @@ out_transport: out_fc_cache: kmem_cache_destroy(zfcp_data.qtcb_cache); out_qtcb_cache: - kmem_cache_destroy(zfcp_data.gpn_ft_cache); -out: return retval; } @@ -185,7 +178,6 @@ static void __exit zfcp_module_exit(void) fc_release_transport(zfcp_data.scsi_transport_template); kmem_cache_destroy(zfcp_fc_req_cache); kmem_cache_destroy(zfcp_data.qtcb_cache); - kmem_cache_destroy(zfcp_data.gpn_ft_cache); } module_exit(zfcp_module_exit); diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h index dbf59108e1f4..d7e2534ed66e 100644 --- a/drivers/s390/scsi/zfcp_def.h +++ b/drivers/s390/scsi/zfcp_def.h @@ -317,7 +317,6 @@ struct zfcp_fsf_req { struct zfcp_data { struct scsi_host_template scsi_host_template; struct scsi_transport_template *scsi_transport_template; - struct kmem_cache *gpn_ft_cache; struct kmem_cache *qtcb_cache; }; diff --git a/drivers/s390/scsi/zfcp_fc.c b/drivers/s390/scsi/zfcp_fc.c index 982455603349..c839a3b6879d 100644 --- a/drivers/s390/scsi/zfcp_fc.c +++ b/drivers/s390/scsi/zfcp_fc.c @@ -528,68 +528,42 @@ void zfcp_fc_test_link(struct zfcp_port *port) put_device(&port->dev); } -static void zfcp_free_sg_env(struct zfcp_fc_gpn_ft *gpn_ft, int buf_num) +static struct zfcp_fc_req *zfcp_alloc_sg_env(int buf_num) { - struct scatterlist *sg = &gpn_ft->sg_req; - - kmem_cache_free(zfcp_data.gpn_ft_cache, sg_virt(sg)); - zfcp_sg_free_table(gpn_ft->sg_resp, buf_num); - - kfree(gpn_ft); -} - -static struct zfcp_fc_gpn_ft *zfcp_alloc_sg_env(int buf_num) -{ - struct zfcp_fc_gpn_ft *gpn_ft; - struct zfcp_fc_gpn_ft_req *req; + struct zfcp_fc_req *fc_req; - gpn_ft = kzalloc(sizeof(*gpn_ft), GFP_KERNEL); - if (!gpn_ft) + fc_req = kmem_cache_zalloc(zfcp_fc_req_cache, GFP_KERNEL); + if (!fc_req) return NULL; - req = kmem_cache_zalloc(zfcp_data.gpn_ft_cache, GFP_KERNEL); - if (!req) { - kfree(gpn_ft); - gpn_ft = NULL; - goto out; + if (zfcp_sg_setup_table(&fc_req->sg_rsp, buf_num)) { + kmem_cache_free(zfcp_fc_req_cache, fc_req); + return NULL; } - sg_init_one(&gpn_ft->sg_req, req, sizeof(*req)); - if (zfcp_sg_setup_table(gpn_ft->sg_resp, buf_num)) { - zfcp_free_sg_env(gpn_ft, buf_num); - gpn_ft = NULL; - } -out: - return gpn_ft; -} + sg_init_one(&fc_req->sg_req, &fc_req->u.gpn_ft.req, + sizeof(struct zfcp_fc_gpn_ft_req)); + return fc_req; +} -static int zfcp_fc_send_gpn_ft(struct zfcp_fc_gpn_ft *gpn_ft, +static int zfcp_fc_send_gpn_ft(struct zfcp_fc_req *fc_req, struct zfcp_adapter *adapter, int max_bytes) { - struct zfcp_fsf_ct_els *ct = &gpn_ft->ct; - struct zfcp_fc_gpn_ft_req *req = sg_virt(&gpn_ft->sg_req); + struct zfcp_fsf_ct_els *ct_els = &fc_req->ct_els; + struct zfcp_fc_gpn_ft_req *req = &fc_req->u.gpn_ft.req; DECLARE_COMPLETION_ONSTACK(completion); int ret; - /* prepare CT IU for GPN_FT */ - req->ct_hdr.ct_rev = FC_CT_REV; - req->ct_hdr.ct_fs_type = FC_FST_DIR; - req->ct_hdr.ct_fs_subtype = FC_NS_SUBTYPE; - req->ct_hdr.ct_options = 0; - req->ct_hdr.ct_cmd = FC_NS_GPN_FT; - req->ct_hdr.ct_mr_size = max_bytes / 4; - req->gpn_ft.fn_domain_id_scope = 0; - req->gpn_ft.fn_area_id_scope = 0; + zfcp_fc_ct_ns_init(&req->ct_hdr, FC_NS_GPN_FT, max_bytes); req->gpn_ft.fn_fc4_type = FC_TYPE_FCP; - /* prepare zfcp_send_ct */ - ct->handler = zfcp_fc_complete; - ct->handler_data = &completion; - ct->req = &gpn_ft->sg_req; - ct->resp = gpn_ft->sg_resp; + ct_els->handler = zfcp_fc_complete; + ct_els->handler_data = &completion; + ct_els->req = &fc_req->sg_req; + ct_els->resp = &fc_req->sg_rsp; - ret = zfcp_fsf_send_ct(&adapter->gs->ds, ct, NULL, + ret = zfcp_fsf_send_ct(&adapter->gs->ds, ct_els, NULL, ZFCP_FC_CTELS_TMO); if (!ret) wait_for_completion(&completion); @@ -610,11 +584,11 @@ static void zfcp_fc_validate_port(struct zfcp_port *port, struct list_head *lh) list_move_tail(&port->list, lh); } -static int zfcp_fc_eval_gpn_ft(struct zfcp_fc_gpn_ft *gpn_ft, +static int zfcp_fc_eval_gpn_ft(struct zfcp_fc_req *fc_req, struct zfcp_adapter *adapter, int max_entries) { - struct zfcp_fsf_ct_els *ct = &gpn_ft->ct; - struct scatterlist *sg = gpn_ft->sg_resp; + struct zfcp_fsf_ct_els *ct_els = &fc_req->ct_els; + struct scatterlist *sg = &fc_req->sg_rsp; struct fc_ct_hdr *hdr = sg_virt(sg); struct fc_gpn_ft_resp *acc = sg_virt(sg); struct zfcp_port *port, *tmp; @@ -623,7 +597,7 @@ static int zfcp_fc_eval_gpn_ft(struct zfcp_fc_gpn_ft *gpn_ft, u32 d_id; int ret = 0, x, last = 0; - if (ct->status) + if (ct_els->status) return -EIO; if (hdr->ct_cmd != FC_FS_ACC) { @@ -687,7 +661,7 @@ void zfcp_fc_scan_ports(struct work_struct *work) struct zfcp_adapter *adapter = container_of(work, struct zfcp_adapter, scan_work); int ret, i; - struct zfcp_fc_gpn_ft *gpn_ft; + struct zfcp_fc_req *fc_req; int chain, max_entries, buf_num, max_bytes; chain = adapter->adapter_features & FSF_FEATURE_ELS_CT_CHAINED_SBALS; @@ -702,21 +676,22 @@ void zfcp_fc_scan_ports(struct work_struct *work) if (zfcp_fc_wka_port_get(&adapter->gs->ds)) return; - gpn_ft = zfcp_alloc_sg_env(buf_num); - if (!gpn_ft) + fc_req = zfcp_alloc_sg_env(buf_num); + if (!fc_req) goto out; for (i = 0; i < 3; i++) { - ret = zfcp_fc_send_gpn_ft(gpn_ft, adapter, max_bytes); + ret = zfcp_fc_send_gpn_ft(fc_req, adapter, max_bytes); if (!ret) { - ret = zfcp_fc_eval_gpn_ft(gpn_ft, adapter, max_entries); + ret = zfcp_fc_eval_gpn_ft(fc_req, adapter, max_entries); if (ret == -EAGAIN) ssleep(1); else break; } } - zfcp_free_sg_env(gpn_ft, buf_num); + zfcp_sg_free_table(&fc_req->sg_rsp, buf_num); + kmem_cache_free(zfcp_fc_req_cache, fc_req); out: zfcp_fc_wka_port_put(&adapter->gs->ds); } diff --git a/drivers/s390/scsi/zfcp_fc.h b/drivers/s390/scsi/zfcp_fc.h index 200fe2501332..2066f9d9ceb5 100644 --- a/drivers/s390/scsi/zfcp_fc.h +++ b/drivers/s390/scsi/zfcp_fc.h @@ -84,28 +84,6 @@ struct zfcp_fc_gpn_ft_req { } __packed; /** - * struct zfcp_fc_gpn_ft_resp - container for ct header plus gpn_ft response - * @ct_hdr: FC GS common transport header - * @gpn_ft: Array of gpn_ft response data to fill one memory page - */ -struct zfcp_fc_gpn_ft_resp { - struct fc_ct_hdr ct_hdr; - struct fc_gpn_ft_resp gpn_ft[ZFCP_FC_GPN_FT_ENT_PAGE]; -} __packed; - -/** - * struct zfcp_fc_gpn_ft - zfcp data for gpn_ft request - * @ct: data passed to zfcp_fsf for issuing fsf request - * @sg_req: scatter list entry for gpn_ft request - * @sg_resp: scatter list entries for gpn_ft responses (per memory page) - */ -struct zfcp_fc_gpn_ft { - struct zfcp_fsf_ct_els ct; - struct scatterlist sg_req; - struct scatterlist sg_resp[ZFCP_FC_GPN_FT_NUM_BUFS]; -}; - -/** * struct zfcp_fc_req - Container for FC ELS and CT requests sent from zfcp * @ct_els: data required for issuing fsf command * @sg_req: scatterlist entry for request data @@ -125,6 +103,10 @@ struct zfcp_fc_req { struct zfcp_fc_gid_pn_req req; struct zfcp_fc_gid_pn_rsp rsp; } gid_pn; + struct { + struct scatterlist sg_rsp2[ZFCP_FC_GPN_FT_NUM_BUFS - 1]; + struct zfcp_fc_gpn_ft_req req; + } gpn_ft; } u; }; |