diff options
Diffstat (limited to 'drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h')
| -rw-r--r-- | drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h | 681 |
1 files changed, 349 insertions, 332 deletions
diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h index cd664d025f41..f5d1d9f8f1ed 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h @@ -65,7 +65,6 @@ #include "../../../include/linux/libcfs/libcfs.h" #include "../../../include/linux/lnet/lnet.h" #include "../../../include/linux/lnet/lib-lnet.h" -#include "../../../include/linux/lnet/lnet-sysctl.h" #include <rdma/rdma_cm.h> #include <rdma/ib_cm.h> @@ -80,42 +79,47 @@ #define IBLND_N_SCHED_HIGH 4 typedef struct { - int *kib_dev_failover; /* HCA failover */ - unsigned int *kib_service; /* IB service number */ - int *kib_min_reconnect_interval; /* first failed connection retry... */ - int *kib_max_reconnect_interval; /* ...exponentially increasing to this */ - int *kib_cksum; /* checksum kib_msg_t? */ - int *kib_timeout; /* comms timeout (seconds) */ - int *kib_keepalive; /* keepalive timeout (seconds) */ - int *kib_ntx; /* # tx descs */ - int *kib_credits; /* # concurrent sends */ - int *kib_peertxcredits; /* # concurrent sends to 1 peer */ - int *kib_peerrtrcredits; /* # per-peer router buffer credits */ - int *kib_peercredits_hiw; /* # when eagerly to return credits */ - int *kib_peertimeout; /* seconds to consider peer dead */ - char **kib_default_ipif; /* default IPoIB interface */ - int *kib_retry_count; - int *kib_rnr_retry_count; - int *kib_concurrent_sends; /* send work queue sizing */ - int *kib_ib_mtu; /* IB MTU */ - int *kib_map_on_demand; /* map-on-demand if RD has more fragments - * than this value, 0 disable map-on-demand */ - int *kib_pmr_pool_size; /* # physical MR in pool */ - int *kib_fmr_pool_size; /* # FMRs in pool */ - int *kib_fmr_flush_trigger; /* When to trigger FMR flush */ - int *kib_fmr_cache; /* enable FMR pool cache? */ - int *kib_require_priv_port;/* accept only privileged ports */ - int *kib_use_priv_port; /* use privileged port for active connect */ - /* # threads on each CPT */ - int *kib_nscheds; + int *kib_dev_failover; /* HCA failover */ + unsigned int *kib_service; /* IB service number */ + int *kib_min_reconnect_interval; /* first failed connection + * retry... */ + int *kib_max_reconnect_interval; /* ...exponentially increasing + * to this */ + int *kib_cksum; /* checksum kib_msg_t? */ + int *kib_timeout; /* comms timeout (seconds) */ + int *kib_keepalive; /* keepalive timeout (seconds) */ + int *kib_ntx; /* # tx descs */ + int *kib_credits; /* # concurrent sends */ + int *kib_peertxcredits; /* # concurrent sends to 1 peer */ + int *kib_peerrtrcredits; /* # per-peer router buffer + * credits */ + int *kib_peercredits_hiw; /* # when eagerly to return + * credits */ + int *kib_peertimeout; /* seconds to consider peer dead */ + char **kib_default_ipif; /* default IPoIB interface */ + int *kib_retry_count; + int *kib_rnr_retry_count; + int *kib_concurrent_sends; /* send work queue sizing */ + int *kib_ib_mtu; /* IB MTU */ + int *kib_map_on_demand; /* map-on-demand if RD has more + * fragments than this value, 0 + * disable map-on-demand */ + int *kib_pmr_pool_size; /* # physical MR in pool */ + int *kib_fmr_pool_size; /* # FMRs in pool */ + int *kib_fmr_flush_trigger; /* When to trigger FMR flush */ + int *kib_fmr_cache; /* enable FMR pool cache? */ + int *kib_require_priv_port; /* accept only privileged ports */ + int *kib_use_priv_port; /* use privileged port for active + * connect */ + int *kib_nscheds; /* # threads on each CPT */ } kib_tunables_t; extern kib_tunables_t kiblnd_tunables; -#define IBLND_MSG_QUEUE_SIZE_V1 8 /* V1 only : # messages/RDMAs in-flight */ -#define IBLND_CREDIT_HIGHWATER_V1 7 /* V1 only : when eagerly to return credits */ +#define IBLND_MSG_QUEUE_SIZE_V1 8 /* V1 only : # messages/RDMAs in-flight */ +#define IBLND_CREDIT_HIGHWATER_V1 7 /* V1 only : when eagerly to return credits */ -#define IBLND_CREDITS_DEFAULT 8 /* default # of peer credits */ +#define IBLND_CREDITS_DEFAULT 8 /* default # of peer credits */ #define IBLND_CREDITS_MAX ((typeof(((kib_msg_t*) 0)->ibm_credits)) - 1) /* Max # of peer credits */ #define IBLND_MSG_QUEUE_SIZE(v) ((v) == IBLND_MSG_VERSION_1 ? \ @@ -186,34 +190,36 @@ struct kib_hca_dev; #endif typedef struct { - struct list_head ibd_list; /* chain on kib_devs */ - struct list_head ibd_fail_list; /* chain on kib_failed_devs */ - __u32 ibd_ifip; /* IPoIB interface IP */ - /** IPoIB interface name */ - char ibd_ifname[KIB_IFNAME_SIZE]; - int ibd_nnets; /* # nets extant */ - - unsigned long ibd_next_failover; - int ibd_failed_failover; /* # failover failures */ - unsigned int ibd_failover; /* failover in progress */ - unsigned int ibd_can_failover; /* IPoIB interface is a bonding master */ - struct list_head ibd_nets; - struct kib_hca_dev *ibd_hdev; + struct list_head ibd_list; /* chain on kib_devs */ + struct list_head ibd_fail_list; /* chain on kib_failed_devs */ + __u32 ibd_ifip; /* IPoIB interface IP */ + + /* IPoIB interface name */ + char ibd_ifname[KIB_IFNAME_SIZE]; + int ibd_nnets; /* # nets extant */ + + unsigned long ibd_next_failover; + int ibd_failed_failover; /* # failover failures */ + unsigned int ibd_failover; /* failover in progress */ + unsigned int ibd_can_failover; /* IPoIB interface is a bonding + * master */ + struct list_head ibd_nets; + struct kib_hca_dev *ibd_hdev; } kib_dev_t; typedef struct kib_hca_dev { - struct rdma_cm_id *ibh_cmid; /* listener cmid */ - struct ib_device *ibh_ibdev; /* IB device */ - int ibh_page_shift; /* page shift of current HCA */ - int ibh_page_size; /* page size of current HCA */ - __u64 ibh_page_mask; /* page mask of current HCA */ - int ibh_mr_shift; /* bits shift of max MR size */ - __u64 ibh_mr_size; /* size of MR */ - int ibh_nmrs; /* # of global MRs */ - struct ib_mr **ibh_mrs; /* global MR */ - struct ib_pd *ibh_pd; /* PD */ - kib_dev_t *ibh_dev; /* owner */ - atomic_t ibh_ref; /* refcount */ + struct rdma_cm_id *ibh_cmid; /* listener cmid */ + struct ib_device *ibh_ibdev; /* IB device */ + int ibh_page_shift; /* page shift of current HCA */ + int ibh_page_size; /* page size of current HCA */ + __u64 ibh_page_mask; /* page mask of current HCA */ + int ibh_mr_shift; /* bits shift of max MR size */ + __u64 ibh_mr_size; /* size of MR */ + int ibh_nmrs; /* # of global MRs */ + struct ib_mr **ibh_mrs; /* global MR */ + struct ib_pd *ibh_pd; /* PD */ + kib_dev_t *ibh_dev; /* owner */ + atomic_t ibh_ref; /* refcount */ } kib_hca_dev_t; /** # of seconds to keep pool alive */ @@ -222,19 +228,19 @@ typedef struct kib_hca_dev { #define IBLND_POOL_RETRY 1 typedef struct { - int ibp_npages; /* # pages */ - struct page *ibp_pages[0]; /* page array */ + int ibp_npages; /* # pages */ + struct page *ibp_pages[0]; /* page array */ } kib_pages_t; struct kib_pmr_pool; typedef struct { - struct list_head pmr_list; /* chain node */ - struct ib_phys_buf *pmr_ipb; /* physical buffer */ - struct ib_mr *pmr_mr; /* IB MR */ - struct kib_pmr_pool *pmr_pool; /* owner of this MR */ - __u64 pmr_iova; /* Virtual I/O address */ - int pmr_refcount; /* reference count */ + struct list_head pmr_list; /* chain node */ + struct ib_phys_buf *pmr_ipb; /* physical buffer */ + struct ib_mr *pmr_mr; /* IB MR */ + struct kib_pmr_pool *pmr_pool; /* owner of this MR */ + __u64 pmr_iova; /* Virtual I/O address */ + int pmr_refcount; /* reference count */ } kib_phys_mr_t; struct kib_pool; @@ -251,97 +257,99 @@ struct kib_net; #define IBLND_POOL_NAME_LEN 32 typedef struct kib_poolset { - spinlock_t ps_lock; /* serialize */ - struct kib_net *ps_net; /* network it belongs to */ - char ps_name[IBLND_POOL_NAME_LEN]; /* pool set name */ - struct list_head ps_pool_list; /* list of pools */ - struct list_head ps_failed_pool_list; /* failed pool list */ - unsigned long ps_next_retry; /* time stamp for retry if failed to allocate */ - int ps_increasing; /* is allocating new pool */ - int ps_pool_size; /* new pool size */ - int ps_cpt; /* CPT id */ - - kib_ps_pool_create_t ps_pool_create; /* create a new pool */ - kib_ps_pool_destroy_t ps_pool_destroy; /* destroy a pool */ - kib_ps_node_init_t ps_node_init; /* initialize new allocated node */ - kib_ps_node_fini_t ps_node_fini; /* finalize node */ + spinlock_t ps_lock; /* serialize */ + struct kib_net *ps_net; /* network it belongs to */ + char ps_name[IBLND_POOL_NAME_LEN]; /* pool set name */ + struct list_head ps_pool_list; /* list of pools */ + struct list_head ps_failed_pool_list;/* failed pool list */ + unsigned long ps_next_retry; /* time stamp for retry if + * failed to allocate */ + int ps_increasing; /* is allocating new pool */ + int ps_pool_size; /* new pool size */ + int ps_cpt; /* CPT id */ + + kib_ps_pool_create_t ps_pool_create; /* create a new pool */ + kib_ps_pool_destroy_t ps_pool_destroy; /* destroy a pool */ + kib_ps_node_init_t ps_node_init; /* initialize new allocated + * node */ + kib_ps_node_fini_t ps_node_fini; /* finalize node */ } kib_poolset_t; typedef struct kib_pool { - struct list_head po_list; /* chain on pool list */ - struct list_head po_free_list; /* pre-allocated node */ - kib_poolset_t *po_owner; /* pool_set of this pool */ - unsigned long po_deadline; /* deadline of this pool */ - int po_allocated; /* # of elements in use */ - int po_failed; /* pool is created on failed HCA */ - int po_size; /* # of pre-allocated elements */ + struct list_head po_list; /* chain on pool list */ + struct list_head po_free_list; /* pre-allocated node */ + kib_poolset_t *po_owner; /* pool_set of this pool */ + unsigned long po_deadline; /* deadline of this pool */ + int po_allocated; /* # of elements in use */ + int po_failed; /* pool is created on failed + * HCA */ + int po_size; /* # of pre-allocated elements */ } kib_pool_t; typedef struct { - kib_poolset_t tps_poolset; /* pool-set */ - __u64 tps_next_tx_cookie; /* cookie of TX */ + kib_poolset_t tps_poolset; /* pool-set */ + __u64 tps_next_tx_cookie; /* cookie of TX */ } kib_tx_poolset_t; typedef struct { - kib_pool_t tpo_pool; /* pool */ - struct kib_hca_dev *tpo_hdev; /* device for this pool */ - struct kib_tx *tpo_tx_descs; /* all the tx descriptors */ - kib_pages_t *tpo_tx_pages; /* premapped tx msg pages */ + kib_pool_t tpo_pool; /* pool */ + struct kib_hca_dev *tpo_hdev; /* device for this pool */ + struct kib_tx *tpo_tx_descs; /* all the tx descriptors */ + kib_pages_t *tpo_tx_pages; /* premapped tx msg pages */ } kib_tx_pool_t; typedef struct { - kib_poolset_t pps_poolset; /* pool-set */ + kib_poolset_t pps_poolset; /* pool-set */ } kib_pmr_poolset_t; typedef struct kib_pmr_pool { - struct kib_hca_dev *ppo_hdev; /* device for this pool */ - kib_pool_t ppo_pool; /* pool */ + struct kib_hca_dev *ppo_hdev; /* device for this pool */ + kib_pool_t ppo_pool; /* pool */ } kib_pmr_pool_t; typedef struct { - spinlock_t fps_lock; /* serialize */ - struct kib_net *fps_net; /* IB network */ - struct list_head fps_pool_list; /* FMR pool list */ - struct list_head fps_failed_pool_list; /* FMR pool list */ - __u64 fps_version; /* validity stamp */ - int fps_cpt; /* CPT id */ - int fps_pool_size; - int fps_flush_trigger; - /* is allocating new pool */ - int fps_increasing; - /* time stamp for retry if failed to allocate */ - unsigned long fps_next_retry; + spinlock_t fps_lock; /* serialize */ + struct kib_net *fps_net; /* IB network */ + struct list_head fps_pool_list; /* FMR pool list */ + struct list_head fps_failed_pool_list;/* FMR pool list */ + __u64 fps_version; /* validity stamp */ + int fps_cpt; /* CPT id */ + int fps_pool_size; + int fps_flush_trigger; + int fps_increasing; /* is allocating new pool */ + unsigned long fps_next_retry; /* time stamp for retry if + * failed to allocate */ } kib_fmr_poolset_t; typedef struct { - struct list_head fpo_list; /* chain on pool list */ - struct kib_hca_dev *fpo_hdev; /* device for this pool */ - kib_fmr_poolset_t *fpo_owner; /* owner of this pool */ - struct ib_fmr_pool *fpo_fmr_pool; /* IB FMR pool */ - unsigned long fpo_deadline; /* deadline of this pool */ - int fpo_failed; /* fmr pool is failed */ - int fpo_map_count; /* # of mapped FMR */ + struct list_head fpo_list; /* chain on pool list */ + struct kib_hca_dev *fpo_hdev; /* device for this pool */ + kib_fmr_poolset_t *fpo_owner; /* owner of this pool */ + struct ib_fmr_pool *fpo_fmr_pool; /* IB FMR pool */ + unsigned long fpo_deadline; /* deadline of this pool */ + int fpo_failed; /* fmr pool is failed */ + int fpo_map_count; /* # of mapped FMR */ } kib_fmr_pool_t; typedef struct { - struct ib_pool_fmr *fmr_pfmr; /* IB pool fmr */ - kib_fmr_pool_t *fmr_pool; /* pool of FMR */ + struct ib_pool_fmr *fmr_pfmr; /* IB pool fmr */ + kib_fmr_pool_t *fmr_pool; /* pool of FMR */ } kib_fmr_t; typedef struct kib_net { - struct list_head ibn_list; /* chain on kib_dev_t::ibd_nets */ - __u64 ibn_incarnation; /* my epoch */ - int ibn_init; /* initialisation state */ - int ibn_shutdown; /* shutting down? */ + struct list_head ibn_list; /* chain on kib_dev_t::ibd_nets */ + __u64 ibn_incarnation;/* my epoch */ + int ibn_init; /* initialisation state */ + int ibn_shutdown; /* shutting down? */ - atomic_t ibn_npeers; /* # peers extant */ - atomic_t ibn_nconns; /* # connections extant */ + atomic_t ibn_npeers; /* # peers extant */ + atomic_t ibn_nconns; /* # connections extant */ - kib_tx_poolset_t **ibn_tx_ps; /* tx pool-set */ - kib_fmr_poolset_t **ibn_fmr_ps; /* fmr pool-set */ - kib_pmr_poolset_t **ibn_pmr_ps; /* pmr pool-set */ + kib_tx_poolset_t **ibn_tx_ps; /* tx pool-set */ + kib_fmr_poolset_t **ibn_fmr_ps; /* fmr pool-set */ + kib_pmr_poolset_t **ibn_pmr_ps; /* pmr pool-set */ - kib_dev_t *ibn_dev; /* underlying IB device */ + kib_dev_t *ibn_dev; /* underlying IB device */ } kib_net_t; #define KIB_THREAD_SHIFT 16 @@ -350,51 +358,45 @@ typedef struct kib_net { #define KIB_THREAD_TID(id) ((id) & ((1UL << KIB_THREAD_SHIFT) - 1)) struct kib_sched_info { - /* serialise */ - spinlock_t ibs_lock; - /* schedulers sleep here */ - wait_queue_head_t ibs_waitq; - /* conns to check for rx completions */ - struct list_head ibs_conns; - /* number of scheduler threads */ - int ibs_nthreads; - /* max allowed scheduler threads */ - int ibs_nthreads_max; - int ibs_cpt; /* CPT id */ + spinlock_t ibs_lock; /* serialise */ + wait_queue_head_t ibs_waitq; /* schedulers sleep here */ + struct list_head ibs_conns; /* conns to check for rx completions */ + int ibs_nthreads; /* number of scheduler threads */ + int ibs_nthreads_max; /* max allowed scheduler threads */ + int ibs_cpt; /* CPT id */ }; typedef struct { - int kib_init; /* initialisation state */ - int kib_shutdown; /* shut down? */ - struct list_head kib_devs; /* IB devices extant */ - /* list head of failed devices */ - struct list_head kib_failed_devs; - /* schedulers sleep here */ - wait_queue_head_t kib_failover_waitq; - atomic_t kib_nthreads; /* # live threads */ - /* stabilize net/dev/peer/conn ops */ - rwlock_t kib_global_lock; - /* hash table of all my known peers */ - struct list_head *kib_peers; - /* size of kib_peers */ - int kib_peer_hash_size; - /* the connd task (serialisation assertions) */ - void *kib_connd; - /* connections to setup/teardown */ - struct list_head kib_connd_conns; - /* connections with zero refcount */ - struct list_head kib_connd_zombies; - /* connection daemon sleeps here */ - wait_queue_head_t kib_connd_waitq; - spinlock_t kib_connd_lock; /* serialise */ - struct ib_qp_attr kib_error_qpa; /* QP->ERROR */ - /* percpt data for schedulers */ - struct kib_sched_info **kib_scheds; + int kib_init; /* initialisation state */ + int kib_shutdown; /* shut down? */ + struct list_head kib_devs; /* IB devices extant */ + struct list_head kib_failed_devs; /* list head of failed + * devices */ + wait_queue_head_t kib_failover_waitq; /* schedulers sleep here */ + atomic_t kib_nthreads; /* # live threads */ + rwlock_t kib_global_lock; /* stabilize net/dev/peer/conn + * ops */ + struct list_head *kib_peers; /* hash table of all my known + * peers */ + int kib_peer_hash_size; /* size of kib_peers */ + void *kib_connd; /* the connd task + * (serialisation assertions) + */ + struct list_head kib_connd_conns; /* connections to + * setup/teardown */ + struct list_head kib_connd_zombies; /* connections with zero + * refcount */ + wait_queue_head_t kib_connd_waitq; /* connection daemon sleeps + * here */ + spinlock_t kib_connd_lock; /* serialise */ + struct ib_qp_attr kib_error_qpa; /* QP->ERROR */ + struct kib_sched_info **kib_scheds; /* percpt data for schedulers + */ } kib_data_t; -#define IBLND_INIT_NOTHING 0 -#define IBLND_INIT_DATA 1 -#define IBLND_INIT_ALL 2 +#define IBLND_INIT_NOTHING 0 +#define IBLND_INIT_DATA 1 +#define IBLND_INIT_ALL 2 /************************************************************************ * IB Wire message format. @@ -402,228 +404,243 @@ typedef struct { */ typedef struct kib_connparams { - __u16 ibcp_queue_depth; - __u16 ibcp_max_frags; - __u32 ibcp_max_msg_size; + __u16 ibcp_queue_depth; + __u16 ibcp_max_frags; + __u32 ibcp_max_msg_size; } WIRE_ATTR kib_connparams_t; typedef struct { - lnet_hdr_t ibim_hdr; /* portals header */ - char ibim_payload[0]; /* piggy-backed payload */ + lnet_hdr_t ibim_hdr; /* portals header */ + char ibim_payload[0]; /* piggy-backed payload */ } WIRE_ATTR kib_immediate_msg_t; typedef struct { - __u32 rf_nob; /* # bytes this frag */ - __u64 rf_addr; /* CAVEAT EMPTOR: misaligned!! */ + __u32 rf_nob; /* # bytes this frag */ + __u64 rf_addr; /* CAVEAT EMPTOR: misaligned!! */ } WIRE_ATTR kib_rdma_frag_t; typedef struct { - __u32 rd_key; /* local/remote key */ - __u32 rd_nfrags; /* # fragments */ - kib_rdma_frag_t rd_frags[0]; /* buffer frags */ + __u32 rd_key; /* local/remote key */ + __u32 rd_nfrags; /* # fragments */ + kib_rdma_frag_t rd_frags[0]; /* buffer frags */ } WIRE_ATTR kib_rdma_desc_t; typedef struct { - lnet_hdr_t ibprm_hdr; /* portals header */ - __u64 ibprm_cookie; /* opaque completion cookie */ + lnet_hdr_t ibprm_hdr; /* portals header */ + __u64 ibprm_cookie; /* opaque completion cookie */ } WIRE_ATTR kib_putreq_msg_t; typedef struct { - __u64 ibpam_src_cookie; /* reflected completion cookie */ - __u64 ibpam_dst_cookie; /* opaque completion cookie */ - kib_rdma_desc_t ibpam_rd; /* sender's sink buffer */ + __u64 ibpam_src_cookie; /* reflected completion cookie */ + __u64 ibpam_dst_cookie; /* opaque completion cookie */ + kib_rdma_desc_t ibpam_rd; /* sender's sink buffer */ } WIRE_ATTR kib_putack_msg_t; typedef struct { - lnet_hdr_t ibgm_hdr; /* portals header */ - __u64 ibgm_cookie; /* opaque completion cookie */ - kib_rdma_desc_t ibgm_rd; /* rdma descriptor */ + lnet_hdr_t ibgm_hdr; /* portals header */ + __u64 ibgm_cookie; /* opaque completion cookie */ + kib_rdma_desc_t ibgm_rd; /* rdma descriptor */ } WIRE_ATTR kib_get_msg_t; typedef struct { - __u64 ibcm_cookie; /* opaque completion cookie */ - __s32 ibcm_status; /* < 0 failure: >= 0 length */ + __u64 ibcm_cookie; /* opaque completion cookie */ + __s32 ibcm_status; /* < 0 failure: >= 0 length */ } WIRE_ATTR kib_completion_msg_t; typedef struct { /* First 2 fields fixed FOR ALL TIME */ - __u32 ibm_magic; /* I'm an ibnal message */ - __u16 ibm_version; /* this is my version number */ - - __u8 ibm_type; /* msg type */ - __u8 ibm_credits; /* returned credits */ - __u32 ibm_nob; /* # bytes in whole message */ - __u32 ibm_cksum; /* checksum (0 == no checksum) */ - __u64 ibm_srcnid; /* sender's NID */ - __u64 ibm_srcstamp; /* sender's incarnation */ - __u64 ibm_dstnid; /* destination's NID */ - __u64 ibm_dststamp; /* destination's incarnation */ + __u32 ibm_magic; /* I'm an ibnal message */ + __u16 ibm_version; /* this is my version number */ + + __u8 ibm_type; /* msg type */ + __u8 ibm_credits; /* returned credits */ + __u32 ibm_nob; /* # bytes in whole message */ + __u32 ibm_cksum; /* checksum (0 == no checksum) */ + __u64 ibm_srcnid; /* sender's NID */ + __u64 ibm_srcstamp; /* sender's incarnation */ + __u64 ibm_dstnid; /* destination's NID */ + __u64 ibm_dststamp; /* destination's incarnation */ union { - kib_connparams_t connparams; - kib_immediate_msg_t immediate; - kib_putreq_msg_t putreq; - kib_putack_msg_t putack; - kib_get_msg_t get; - kib_completion_msg_t completion; + kib_connparams_t connparams; + kib_immediate_msg_t immediate; + kib_putreq_msg_t putreq; + kib_putack_msg_t putack; + kib_get_msg_t get; + kib_completion_msg_t completion; } WIRE_ATTR ibm_u; } WIRE_ATTR kib_msg_t; -#define IBLND_MSG_MAGIC LNET_PROTO_IB_MAGIC /* unique magic */ +#define IBLND_MSG_MAGIC LNET_PROTO_IB_MAGIC /* unique magic */ -#define IBLND_MSG_VERSION_1 0x11 -#define IBLND_MSG_VERSION_2 0x12 -#define IBLND_MSG_VERSION IBLND_MSG_VERSION_2 +#define IBLND_MSG_VERSION_1 0x11 +#define IBLND_MSG_VERSION_2 0x12 +#define IBLND_MSG_VERSION IBLND_MSG_VERSION_2 -#define IBLND_MSG_CONNREQ 0xc0 /* connection request */ -#define IBLND_MSG_CONNACK 0xc1 /* connection acknowledge */ -#define IBLND_MSG_NOOP 0xd0 /* nothing (just credits) */ -#define IBLND_MSG_IMMEDIATE 0xd1 /* immediate */ -#define IBLND_MSG_PUT_REQ 0xd2 /* putreq (src->sink) */ -#define IBLND_MSG_PUT_NAK 0xd3 /* completion (sink->src) */ -#define IBLND_MSG_PUT_ACK 0xd4 /* putack (sink->src) */ -#define IBLND_MSG_PUT_DONE 0xd5 /* completion (src->sink) */ -#define IBLND_MSG_GET_REQ 0xd6 /* getreq (sink->src) */ -#define IBLND_MSG_GET_DONE 0xd7 /* completion (src->sink: all OK) */ +#define IBLND_MSG_CONNREQ 0xc0 /* connection request */ +#define IBLND_MSG_CONNACK 0xc1 /* connection acknowledge */ +#define IBLND_MSG_NOOP 0xd0 /* nothing (just credits) */ +#define IBLND_MSG_IMMEDIATE 0xd1 /* immediate */ +#define IBLND_MSG_PUT_REQ 0xd2 /* putreq (src->sink) */ +#define IBLND_MSG_PUT_NAK 0xd3 /* completion (sink->src) */ +#define IBLND_MSG_PUT_ACK 0xd4 /* putack (sink->src) */ +#define IBLND_MSG_PUT_DONE 0xd5 /* completion (src->sink) */ +#define IBLND_MSG_GET_REQ 0xd6 /* getreq (sink->src) */ +#define IBLND_MSG_GET_DONE 0xd7 /* completion (src->sink: all OK) */ typedef struct { - __u32 ibr_magic; /* sender's magic */ - __u16 ibr_version; /* sender's version */ - __u8 ibr_why; /* reject reason */ - __u8 ibr_padding; /* padding */ - __u64 ibr_incarnation; /* incarnation of peer */ - kib_connparams_t ibr_cp; /* connection parameters */ + __u32 ibr_magic; /* sender's magic */ + __u16 ibr_version; /* sender's version */ + __u8 ibr_why; /* reject reason */ + __u8 ibr_padding; /* padding */ + __u64 ibr_incarnation; /* incarnation of peer */ + kib_connparams_t ibr_cp; /* connection parameters */ } WIRE_ATTR kib_rej_t; /* connection rejection reasons */ -#define IBLND_REJECT_CONN_RACE 1 /* You lost connection race */ -#define IBLND_REJECT_NO_RESOURCES 2 /* Out of memory/conns etc */ -#define IBLND_REJECT_FATAL 3 /* Anything else */ - -#define IBLND_REJECT_CONN_UNCOMPAT 4 /* incompatible version peer */ -#define IBLND_REJECT_CONN_STALE 5 /* stale peer */ - -#define IBLND_REJECT_RDMA_FRAGS 6 /* Fatal: peer's rdma frags can't match mine */ -#define IBLND_REJECT_MSG_QUEUE_SIZE 7 /* Fatal: peer's msg queue size can't match mine */ +#define IBLND_REJECT_CONN_RACE 1 /* You lost connection race */ +#define IBLND_REJECT_NO_RESOURCES 2 /* Out of memory/conns etc */ +#define IBLND_REJECT_FATAL 3 /* Anything else */ +#define IBLND_REJECT_CONN_UNCOMPAT 4 /* incompatible version peer */ +#define IBLND_REJECT_CONN_STALE 5 /* stale peer */ +#define IBLND_REJECT_RDMA_FRAGS 6 /* Fatal: peer's rdma frags can't match + * mine */ +#define IBLND_REJECT_MSG_QUEUE_SIZE 7 /* Fatal: peer's msg queue size can't + * match mine */ /***********************************************************************/ -typedef struct kib_rx /* receive message */ +typedef struct kib_rx /* receive message */ { - struct list_head rx_list; /* queue for attention */ - struct kib_conn *rx_conn; /* owning conn */ - int rx_nob; /* # bytes received (-1 while posted) */ - enum ib_wc_status rx_status; /* completion status */ - kib_msg_t *rx_msg; /* message buffer (host vaddr) */ - __u64 rx_msgaddr; /* message buffer (I/O addr) */ - DECLARE_PCI_UNMAP_ADDR (rx_msgunmap); /* for dma_unmap_single() */ - struct ib_recv_wr rx_wrq; /* receive work item... */ - struct ib_sge rx_sge; /* ...and its memory */ + struct list_head rx_list; /* queue for attention */ + struct kib_conn *rx_conn; /* owning conn */ + int rx_nob; /* # bytes received (-1 while + * posted) */ + enum ib_wc_status rx_status; /* completion status */ + kib_msg_t *rx_msg; /* message buffer (host vaddr) */ + __u64 rx_msgaddr; /* message buffer (I/O addr) */ + DECLARE_PCI_UNMAP_ADDR (rx_msgunmap); /* for dma_unmap_single() */ + struct ib_recv_wr rx_wrq; /* receive work item... */ + struct ib_sge rx_sge; /* ...and its memory */ } kib_rx_t; -#define IBLND_POSTRX_DONT_POST 0 /* don't post */ -#define IBLND_POSTRX_NO_CREDIT 1 /* post: no credits */ -#define IBLND_POSTRX_PEER_CREDIT 2 /* post: give peer back 1 credit */ -#define IBLND_POSTRX_RSRVD_CREDIT 3 /* post: give myself back 1 reserved credit */ +#define IBLND_POSTRX_DONT_POST 0 /* don't post */ +#define IBLND_POSTRX_NO_CREDIT 1 /* post: no credits */ +#define IBLND_POSTRX_PEER_CREDIT 2 /* post: give peer back 1 credit */ +#define IBLND_POSTRX_RSRVD_CREDIT 3 /* post: give myself back 1 reserved + * credit */ -typedef struct kib_tx /* transmit message */ +typedef struct kib_tx /* transmit message */ { - struct list_head tx_list; /* queue on idle_txs ibc_tx_queue etc. */ - kib_tx_pool_t *tx_pool; /* pool I'm from */ - struct kib_conn *tx_conn; /* owning conn */ - short tx_sending; /* # tx callbacks outstanding */ - short tx_queued; /* queued for sending */ - short tx_waiting; /* waiting for peer */ - int tx_status; /* LNET completion status */ - unsigned long tx_deadline; /* completion deadline */ - __u64 tx_cookie; /* completion cookie */ - lnet_msg_t *tx_lntmsg[2]; /* lnet msgs to finalize on completion */ - kib_msg_t *tx_msg; /* message buffer (host vaddr) */ - __u64 tx_msgaddr; /* message buffer (I/O addr) */ - DECLARE_PCI_UNMAP_ADDR (tx_msgunmap); /* for dma_unmap_single() */ - int tx_nwrq; /* # send work items */ - struct ib_send_wr *tx_wrq; /* send work items... */ - struct ib_sge *tx_sge; /* ...and their memory */ - kib_rdma_desc_t *tx_rd; /* rdma descriptor */ - int tx_nfrags; /* # entries in... */ - struct scatterlist *tx_frags; /* dma_map_sg descriptor */ - __u64 *tx_pages; /* rdma phys page addrs */ + struct list_head tx_list; /* queue on idle_txs ibc_tx_queue + * etc. */ + kib_tx_pool_t *tx_pool; /* pool I'm from */ + struct kib_conn *tx_conn; /* owning conn */ + short tx_sending; /* # tx callbacks outstanding */ + short tx_queued; /* queued for sending */ + short tx_waiting; /* waiting for peer */ + int tx_status; /* LNET completion status */ + unsigned long tx_deadline; /* completion deadline */ + __u64 tx_cookie; /* completion cookie */ + lnet_msg_t *tx_lntmsg[2]; /* lnet msgs to finalize on + * completion */ + kib_msg_t *tx_msg; /* message buffer (host vaddr) */ + __u64 tx_msgaddr; /* message buffer (I/O addr) */ + DECLARE_PCI_UNMAP_ADDR (tx_msgunmap); /* for dma_unmap_single() */ + int tx_nwrq; /* # send work items */ + struct ib_send_wr *tx_wrq; /* send work items... */ + struct ib_sge *tx_sge; /* ...and their memory */ + kib_rdma_desc_t *tx_rd; /* rdma descriptor */ + int tx_nfrags; /* # entries in... */ + struct scatterlist *tx_frags; /* dma_map_sg descriptor */ + __u64 *tx_pages; /* rdma phys page addrs */ union { - kib_phys_mr_t *pmr; /* MR for physical buffer */ - kib_fmr_t fmr; /* FMR */ - } tx_u; - int tx_dmadir; /* dma direction */ + kib_phys_mr_t *pmr; /* MR for physical buffer */ + kib_fmr_t fmr; /* FMR */ + } tx_u; + int tx_dmadir; /* dma direction */ } kib_tx_t; typedef struct kib_connvars { - /* connection-in-progress variables */ - kib_msg_t cv_msg; + kib_msg_t cv_msg; /* connection-in-progress variables */ } kib_connvars_t; typedef struct kib_conn { - struct kib_sched_info *ibc_sched; /* scheduler information */ - struct kib_peer *ibc_peer; /* owning peer */ - kib_hca_dev_t *ibc_hdev; /* HCA bound on */ - struct list_head ibc_list; /* stash on peer's conn list */ - struct list_head ibc_sched_list; /* schedule for attention */ - __u16 ibc_version; /* version of connection */ - __u64 ibc_incarnation; /* which instance of the peer */ - atomic_t ibc_refcount; /* # users */ - int ibc_state; /* what's happening */ - int ibc_nsends_posted; /* # uncompleted sends */ - int ibc_noops_posted; /* # uncompleted NOOPs */ - int ibc_credits; /* # credits I have */ - int ibc_outstanding_credits; /* # credits to return */ - int ibc_reserved_credits;/* # ACK/DONE msg credits */ - int ibc_comms_error; /* set on comms error */ - unsigned int ibc_nrx:16; /* receive buffers owned */ - unsigned int ibc_scheduled:1; /* scheduled for attention */ - unsigned int ibc_ready:1; /* CQ callback fired */ - /* time of last send */ - unsigned long ibc_last_send; - /** link chain for kiblnd_check_conns only */ - struct list_head ibc_connd_list; - /** rxs completed before ESTABLISHED */ - struct list_head ibc_early_rxs; - /** IBLND_MSG_NOOPs for IBLND_MSG_VERSION_1 */ - struct list_head ibc_tx_noops; - struct list_head ibc_tx_queue; /* sends that need a credit */ - struct list_head ibc_tx_queue_nocred;/* sends that don't need a credit */ - struct list_head ibc_tx_queue_rsrvd; /* sends that need to reserve an ACK/DONE msg */ - struct list_head ibc_active_txs; /* active tx awaiting completion */ - spinlock_t ibc_lock; /* serialise */ - kib_rx_t *ibc_rxs; /* the rx descs */ - kib_pages_t *ibc_rx_pages; /* premapped rx msg pages */ - - struct rdma_cm_id *ibc_cmid; /* CM id */ - struct ib_cq *ibc_cq; /* completion queue */ - - kib_connvars_t *ibc_connvars; /* in-progress connection state */ + struct kib_sched_info *ibc_sched; /* scheduler information */ + struct kib_peer *ibc_peer; /* owning peer */ + kib_hca_dev_t *ibc_hdev; /* HCA bound on */ + struct list_head ibc_list; /* stash on peer's conn + * list */ + struct list_head ibc_sched_list; /* schedule for attention */ + __u16 ibc_version; /* version of connection */ + __u64 ibc_incarnation; /* which instance of the + * peer */ + atomic_t ibc_refcount; /* # users */ + int ibc_state; /* what's happening */ + int ibc_nsends_posted; /* # uncompleted sends */ + int ibc_noops_posted; /* # uncompleted NOOPs */ + int ibc_credits; /* # credits I have */ + int ibc_outstanding_credits; /* # credits to return */ + int ibc_reserved_credits; /* # ACK/DONE msg credits */ + int ibc_comms_error; /* set on comms error */ + unsigned int ibc_nrx:16; /* receive buffers owned */ + unsigned int ibc_scheduled:1; /* scheduled for attention + */ + unsigned int ibc_ready:1; /* CQ callback fired */ + unsigned long ibc_last_send; /* time of last send */ + struct list_head ibc_connd_list; /* link chain for + * kiblnd_check_conns only + */ + struct list_head ibc_early_rxs; /* rxs completed before + * ESTABLISHED */ + struct list_head ibc_tx_noops; /* IBLND_MSG_NOOPs for + * IBLND_MSG_VERSION_1 */ + struct list_head ibc_tx_queue; /* sends that need a credit + */ + struct list_head ibc_tx_queue_nocred; /* sends that don't need a + * credit */ + struct list_head ibc_tx_queue_rsrvd; /* sends that need to + * reserve an ACK/DONE msg + */ + struct list_head ibc_active_txs; /* active tx awaiting + * completion */ + spinlock_t ibc_lock; /* serialise */ + kib_rx_t *ibc_rxs; /* the rx descs */ + kib_pages_t *ibc_rx_pages; /* premapped rx msg pages */ + + struct rdma_cm_id *ibc_cmid; /* CM id */ + struct ib_cq *ibc_cq; /* completion queue */ + + kib_connvars_t *ibc_connvars; /* in-progress connection + * state */ } kib_conn_t; -#define IBLND_CONN_INIT 0 /* being initialised */ -#define IBLND_CONN_ACTIVE_CONNECT 1 /* active sending req */ -#define IBLND_CONN_PASSIVE_WAIT 2 /* passive waiting for rtu */ -#define IBLND_CONN_ESTABLISHED 3 /* connection established */ -#define IBLND_CONN_CLOSING 4 /* being closed */ -#define IBLND_CONN_DISCONNECTED 5 /* disconnected */ +#define IBLND_CONN_INIT 0 /* being initialised */ +#define IBLND_CONN_ACTIVE_CONNECT 1 /* active sending req */ +#define IBLND_CONN_PASSIVE_WAIT 2 /* passive waiting for rtu */ +#define IBLND_CONN_ESTABLISHED 3 /* connection established */ +#define IBLND_CONN_CLOSING 4 /* being closed */ +#define IBLND_CONN_DISCONNECTED 5 /* disconnected */ typedef struct kib_peer { - struct list_head ibp_list; /* stash on global peer list */ - lnet_nid_t ibp_nid; /* who's on the other end(s) */ - lnet_ni_t *ibp_ni; /* LNet interface */ - atomic_t ibp_refcount; /* # users */ - struct list_head ibp_conns; /* all active connections */ - struct list_head ibp_tx_queue; /* msgs waiting for a conn */ - __u16 ibp_version; /* version of peer */ - __u64 ibp_incarnation; /* incarnation of peer */ - int ibp_connecting; /* current active connection attempts */ - int ibp_accepting; /* current passive connection attempts */ - int ibp_error; /* errno on closing this peer */ - unsigned long ibp_last_alive; /* when (in jiffies) I was last alive */ + struct list_head ibp_list; /* stash on global peer list */ + lnet_nid_t ibp_nid; /* who's on the other end(s) */ + lnet_ni_t *ibp_ni; /* LNet interface */ + atomic_t ibp_refcount; /* # users */ + struct list_head ibp_conns; /* all active connections */ + struct list_head ibp_tx_queue; /* msgs waiting for a conn */ + __u16 ibp_version; /* version of peer */ + __u64 ibp_incarnation; /* incarnation of peer */ + int ibp_connecting; /* current active connection attempts + */ + int ibp_accepting; /* current passive connection attempts + */ + int ibp_error; /* errno on closing this peer */ + unsigned long ibp_last_alive; /* when (in jiffies) I was last alive + */ } kib_peer_t; -extern kib_data_t kiblnd_data; +extern kib_data_t kiblnd_data; extern void kiblnd_hdev_destroy(kib_hca_dev_t *hdev); @@ -941,8 +958,8 @@ static inline unsigned int kiblnd_sg_dma_len(struct ib_device *dev, * right because OFED1.2 defines it as const, to use it we have to add * (void *) cast to overcome "const" */ -#define KIBLND_CONN_PARAM(e) ((e)->param.conn.private_data) -#define KIBLND_CONN_PARAM_LEN(e) ((e)->param.conn.private_data_len) +#define KIBLND_CONN_PARAM(e) ((e)->param.conn.private_data) +#define KIBLND_CONN_PARAM_LEN(e) ((e)->param.conn.private_data_len) struct ib_mr *kiblnd_find_rd_dma_mr(kib_hca_dev_t *hdev, |