diff options
Diffstat (limited to 'drivers/staging/lustre/include/linux/lnet/lib-lnet.h')
| -rw-r--r-- | drivers/staging/lustre/include/linux/lnet/lib-lnet.h | 129 |
1 files changed, 98 insertions, 31 deletions
diff --git a/drivers/staging/lustre/include/linux/lnet/lib-lnet.h b/drivers/staging/lustre/include/linux/lnet/lib-lnet.h index b67a6607bb3b..dfc0208dc3a7 100644 --- a/drivers/staging/lustre/include/linux/lnet/lib-lnet.h +++ b/drivers/staging/lustre/include/linux/lnet/lib-lnet.h @@ -39,6 +39,7 @@ #include "api.h" #include "lnet.h" #include "lib-types.h" +#include "lib-dlc.h" extern lnet_t the_lnet; /* THE network */ @@ -64,6 +65,19 @@ extern lnet_t the_lnet; /* THE network */ /** exclusive lock */ #define LNET_LOCK_EX CFS_PERCPT_LOCK_EX +static inline int lnet_is_route_alive(lnet_route_t *route) +{ + /* gateway is down */ + if (!route->lr_gateway->lp_alive) + return 0; + /* no NI status, assume it's alive */ + if ((route->lr_gateway->lp_ping_feats & + LNET_PING_FEAT_NI_STATUS) == 0) + return 1; + /* has NI status, check # down NIs */ + return route->lr_downis == 0; +} + static inline int lnet_is_wire_handle_none(lnet_handle_wire_t *wh) { return (wh->wh_interface_cookie == LNET_WIRE_HANDLE_COOKIE_NONE && @@ -72,25 +86,26 @@ static inline int lnet_is_wire_handle_none(lnet_handle_wire_t *wh) static inline int lnet_md_exhausted(lnet_libmd_t *md) { - return (md->md_threshold == 0 || - ((md->md_options & LNET_MD_MAX_SIZE) != 0 && + return (!md->md_threshold || + ((md->md_options & LNET_MD_MAX_SIZE) && md->md_offset + md->md_max_size > md->md_length)); } static inline int lnet_md_unlinkable(lnet_libmd_t *md) { - /* Should unlink md when its refcount is 0 and either: + /* + * Should unlink md when its refcount is 0 and either: * - md has been flagged for deletion (by auto unlink or * LNetM[DE]Unlink, in the latter case md may not be exhausted). * - auto unlink is on and md is exhausted. */ - if (md->md_refcount != 0) + if (md->md_refcount) return 0; - if ((md->md_flags & LNET_MD_FLAG_ZOMBIE) != 0) + if (md->md_flags & LNET_MD_FLAG_ZOMBIE) return 1; - return ((md->md_flags & LNET_MD_FLAG_AUTO_UNLINK) != 0 && + return ((md->md_flags & LNET_MD_FLAG_AUTO_UNLINK) && lnet_md_exhausted(md)); } @@ -102,8 +117,10 @@ lnet_cpt_of_cookie(__u64 cookie) { unsigned int cpt = (cookie >> LNET_COOKIE_TYPE_BITS) & LNET_CPT_MASK; - /* LNET_CPT_NUMBER doesn't have to be power2, which means we can - * get illegal cpt from it's invalid cookie */ + /* + * LNET_CPT_NUMBER doesn't have to be power2, which means we can + * get illegal cpt from it's invalid cookie + */ return cpt < LNET_CPT_NUMBER ? cpt : cpt % LNET_CPT_NUMBER; } @@ -183,18 +200,17 @@ lnet_md_alloc(lnet_md_t *umd) unsigned int size; unsigned int niov; - if ((umd->options & LNET_MD_KIOV) != 0) { + if (umd->options & LNET_MD_KIOV) { niov = umd->length; size = offsetof(lnet_libmd_t, md_iov.kiov[niov]); } else { - niov = ((umd->options & LNET_MD_IOVEC) != 0) ? - umd->length : 1; + niov = umd->options & LNET_MD_IOVEC ? umd->length : 1; size = offsetof(lnet_libmd_t, md_iov.iov[niov]); } LIBCFS_ALLOC(md, size); - if (md != NULL) { + if (md) { /* Set here in case of early free */ md->md_options = umd->options; md->md_niov = niov; @@ -209,7 +225,7 @@ lnet_md_free(lnet_libmd_t *md) { unsigned int size; - if ((md->md_options & LNET_MD_KIOV) != 0) + if (md->md_options & LNET_MD_KIOV) size = offsetof(lnet_libmd_t, md_iov.kiov[md->md_niov]); else size = offsetof(lnet_libmd_t, md_iov.iov[md->md_niov]); @@ -264,7 +280,7 @@ lnet_res_lh_invalidate(lnet_libhandle_t *lh) static inline void lnet_eq2handle(lnet_handle_eq_t *handle, lnet_eq_t *eq) { - if (eq == NULL) { + if (!eq) { LNetInvalidateHandle(handle); return; } @@ -278,7 +294,7 @@ lnet_handle2eq(lnet_handle_eq_t *handle) lnet_libhandle_t *lh; lh = lnet_res_lh_lookup(&the_lnet.ln_eq_container, handle->cookie); - if (lh == NULL) + if (!lh) return NULL; return lh_entry(lh, lnet_eq_t, eq_lh); @@ -300,7 +316,7 @@ lnet_handle2md(lnet_handle_md_t *handle) cpt = lnet_cpt_of_cookie(handle->cookie); lh = lnet_res_lh_lookup(the_lnet.ln_md_containers[cpt], handle->cookie); - if (lh == NULL) + if (!lh) return NULL; return lh_entry(lh, lnet_libmd_t, md_lh); @@ -319,7 +335,7 @@ lnet_wire_handle2md(lnet_handle_wire_t *wh) cpt = lnet_cpt_of_cookie(wh->wh_object_cookie); lh = lnet_res_lh_lookup(the_lnet.ln_md_containers[cpt], wh->wh_object_cookie); - if (lh == NULL) + if (!lh) return NULL; return lh_entry(lh, lnet_libmd_t, md_lh); @@ -341,7 +357,7 @@ lnet_handle2me(lnet_handle_me_t *handle) cpt = lnet_cpt_of_cookie(handle->cookie); lh = lnet_res_lh_lookup(the_lnet.ln_me_containers[cpt], handle->cookie); - if (lh == NULL) + if (!lh) return NULL; return lh_entry(lh, lnet_me_t, me_lh); @@ -361,14 +377,14 @@ lnet_peer_decref_locked(lnet_peer_t *lp) { LASSERT(lp->lp_refcount > 0); lp->lp_refcount--; - if (lp->lp_refcount == 0) + if (!lp->lp_refcount) lnet_destroy_peer_locked(lp); } static inline int lnet_isrouter(lnet_peer_t *lp) { - return lp->lp_rtr_refcount != 0; + return lp->lp_rtr_refcount ? 1 : 0; } static inline void @@ -406,6 +422,8 @@ lnet_ni_decref(lnet_ni_t *ni) } void lnet_ni_free(lnet_ni_t *ni); +lnet_ni_t * +lnet_ni_alloc(__u32 net, struct cfs_expr_list *el, struct list_head *nilist); static inline int lnet_nid2peerhash(lnet_nid_t nid) @@ -430,24 +448,41 @@ lnet_ni_t *lnet_nid2ni_locked(lnet_nid_t nid, int cpt); lnet_ni_t *lnet_net2ni_locked(__u32 net, int cpt); lnet_ni_t *lnet_net2ni(__u32 net); -int lnet_init(void); -void lnet_fini(void); +extern int portal_rotor; + +int lnet_lib_init(void); +void lnet_lib_exit(void); int lnet_notify(lnet_ni_t *ni, lnet_nid_t peer, int alive, unsigned long when); void lnet_notify_locked(lnet_peer_t *lp, int notifylnd, int alive, unsigned long when); -int lnet_add_route(__u32 net, unsigned int hops, lnet_nid_t gateway_nid, +int lnet_add_route(__u32 net, __u32 hops, lnet_nid_t gateway_nid, unsigned int priority); int lnet_check_routes(void); int lnet_del_route(__u32 net, lnet_nid_t gw_nid); void lnet_destroy_routes(void); int lnet_get_route(int idx, __u32 *net, __u32 *hops, lnet_nid_t *gateway, __u32 *alive, __u32 *priority); +int lnet_get_net_config(int idx, __u32 *cpt_count, __u64 *nid, + int *peer_timeout, int *peer_tx_credits, + int *peer_rtr_cr, int *max_tx_credits, + struct lnet_ioctl_net_config *net_config); +int lnet_get_rtr_pool_cfg(int idx, struct lnet_ioctl_pool_cfg *pool_cfg); + void lnet_router_debugfs_init(void); void lnet_router_debugfs_fini(void); int lnet_rtrpools_alloc(int im_a_router); -void lnet_rtrpools_free(void); +void lnet_destroy_rtrbuf(lnet_rtrbuf_t *rb, int npages); +int lnet_rtrpools_adjust(int tiny, int small, int large); +int lnet_rtrpools_enable(void); +void lnet_rtrpools_disable(void); +void lnet_rtrpools_free(int keep_pools); lnet_remotenet_t *lnet_find_net_locked(__u32 net); +int lnet_dyn_add_ni(lnet_pid_t requested_pid, char *nets, + __s32 peer_timeout, __s32 peer_cr, __s32 peer_buf_cr, + __s32 credits); +int lnet_dyn_del_ni(__u32 net); +int lnet_clear_lazy_portal(struct lnet_ni *ni, int portal, char *reason); int lnet_islocalnid(lnet_nid_t nid); int lnet_islocalnet(__u32 net); @@ -466,6 +501,8 @@ void lnet_prep_send(lnet_msg_t *msg, int type, lnet_process_id_t target, int lnet_send(lnet_nid_t nid, lnet_msg_t *msg, lnet_nid_t rtr_nid); void lnet_return_tx_credits_locked(lnet_msg_t *msg); void lnet_return_rx_credits_locked(lnet_msg_t *msg); +void lnet_schedule_blocked_locked(lnet_rtrbufpool_t *rbp); +void lnet_drop_routed_msgs_locked(struct list_head *list, int cpt); /* portals functions */ /* portals attributes */ @@ -522,13 +559,22 @@ void lnet_portals_destroy(void); /* message functions */ int lnet_parse(lnet_ni_t *ni, lnet_hdr_t *hdr, lnet_nid_t fromnid, void *private, int rdma_req); +int lnet_parse_local(lnet_ni_t *ni, lnet_msg_t *msg); +int lnet_parse_forward_locked(lnet_ni_t *ni, lnet_msg_t *msg); + void lnet_recv(lnet_ni_t *ni, void *private, lnet_msg_t *msg, int delayed, unsigned int offset, unsigned int mlen, unsigned int rlen); +void lnet_ni_recv(lnet_ni_t *ni, void *private, lnet_msg_t *msg, + int delayed, unsigned int offset, + unsigned int mlen, unsigned int rlen); + lnet_msg_t *lnet_create_reply_msg(lnet_ni_t *ni, lnet_msg_t *get_msg); void lnet_set_reply_msg_len(lnet_ni_t *ni, lnet_msg_t *msg, unsigned int len); void lnet_finalize(lnet_ni_t *ni, lnet_msg_t *msg, int rc); +void lnet_drop_message(lnet_ni_t *ni, int cpt, void *private, + unsigned int nob); void lnet_drop_delayed_msg_list(struct list_head *head, char *reason); void lnet_recv_delayed_msg_list(struct list_head *head); @@ -541,6 +587,24 @@ char *lnet_msgtyp2str(int type); void lnet_print_hdr(lnet_hdr_t *hdr); int lnet_fail_nid(lnet_nid_t nid, unsigned int threshold); +/** \addtogroup lnet_fault_simulation @{ */ + +int lnet_fault_ctl(int cmd, struct libcfs_ioctl_data *data); +int lnet_fault_init(void); +void lnet_fault_fini(void); + +bool lnet_drop_rule_match(lnet_hdr_t *hdr); + +int lnet_delay_rule_add(struct lnet_fault_attr *attr); +int lnet_delay_rule_del(lnet_nid_t src, lnet_nid_t dst, bool shutdown); +int lnet_delay_rule_list(int pos, struct lnet_fault_attr *attr, + struct lnet_fault_stat *stat); +void lnet_delay_rule_reset(void); +void lnet_delay_rule_check(void); +bool lnet_delay_rule_match_locked(lnet_hdr_t *hdr, struct lnet_msg *msg); + +/** @} lnet_fault_simulation */ + void lnet_counters_get(lnet_counters_t *counters); void lnet_counters_reset(void); @@ -660,27 +724,30 @@ void lnet_router_checker_stop(void); void lnet_router_ni_update_locked(lnet_peer_t *gw, __u32 net); void lnet_swap_pinginfo(lnet_ping_info_t *info); -int lnet_ping_target_init(void); -void lnet_ping_target_fini(void); -int lnet_ping(lnet_process_id_t id, int timeout_ms, - lnet_process_id_t *ids, int n_ids); - int lnet_parse_ip2nets(char **networksp, char *ip2nets); int lnet_parse_routes(char *route_str, int *im_a_router); int lnet_parse_networks(struct list_head *nilist, char *networks); +int lnet_net_unique(__u32 net, struct list_head *nilist); int lnet_nid2peer_locked(lnet_peer_t **lpp, lnet_nid_t nid, int cpt); lnet_peer_t *lnet_find_peer_locked(struct lnet_peer_table *ptable, lnet_nid_t nid); -void lnet_peer_tables_cleanup(void); +void lnet_peer_tables_cleanup(lnet_ni_t *ni); void lnet_peer_tables_destroy(void); int lnet_peer_tables_create(void); void lnet_debug_peer(lnet_nid_t nid); +int lnet_get_peer_info(__u32 peer_index, __u64 *nid, + char alivness[LNET_MAX_STR_LEN], + __u32 *cpt_iter, __u32 *refcount, + __u32 *ni_peer_tx_credits, __u32 *peer_tx_credits, + __u32 *peer_rtr_credits, __u32 *peer_min_rtr_credtis, + __u32 *peer_tx_qnob); static inline void lnet_peer_set_alive(lnet_peer_t *lp) { - lp->lp_last_alive = lp->lp_last_query = jiffies; + lp->lp_last_query = jiffies; + lp->lp_last_alive = jiffies; if (!lp->lp_alive) lnet_notify_locked(lp, 0, 1, lp->lp_last_alive); } |