/** exclusive lock */
#define LNET_LOCK_EX CFS_PERCPT_LOCK_EX
-/* default timeout */
+/* default timeout and credits */
#define DEFAULT_PEER_TIMEOUT 180
-#define LNET_LND_DEFAULT_TIMEOUT 5
+#define DEFAULT_PEER_CREDITS 8
+#define DEFAULT_CREDITS 256
#ifdef HAVE_KERN_SOCK_GETNAME_2ARGS
#define lnet_kernel_getpeername(sock, addr, addrlen) \
/*
* kernel 5.3: commit ef11db3310e272d3d8dbe8739e0770820dd20e52
+ * kernel 4.18.0-193.el8:
* added in_dev_for_each_ifa_rtnl and in_dev_for_each_ifa_rcu
* and removed for_ifa and endfor_ifa.
* Use the _rntl variant as the current locking is rtnl.
*/
-#ifdef in_dev_for_each_ifa_rtnl
+#ifdef HAVE_IN_DEV_FOR_EACH_IFA_RTNL
#define DECLARE_CONST_IN_IFADDR(ifa) const struct in_ifaddr *ifa
#define endfor_ifa(in_dev)
#else
extern struct kmem_cache *lnet_rspt_cachep;
extern struct kmem_cache *lnet_msg_cachep;
+static inline bool
+lnet_ni_set_status_locked(struct lnet_ni *ni, __u32 status)
+__must_hold(&ni->ni_lock)
+{
+ bool update = false;
+
+ if (ni->ni_status && ni->ni_status->ns_status != status) {
+ CDEBUG(D_NET, "ni %s status changed from %#x to %#x\n",
+ libcfs_nid2str(ni->ni_nid),
+ ni->ni_status->ns_status, status);
+ ni->ni_status->ns_status = status;
+ update = true;
+ }
+
+ return update;
+}
+
+static inline bool
+lnet_ni_set_status(struct lnet_ni *ni, __u32 status)
+{
+ bool update;
+
+ lnet_ni_lock(ni);
+ update = lnet_ni_set_status_locked(ni, status);
+ lnet_ni_unlock(ni);
+
+ return update;
+}
+
+static inline void lnet_md_wait_handling(struct lnet_libmd *md, int cpt)
+{
+ wait_queue_head_t *wq = __var_waitqueue(md);
+#ifdef HAVE_WAIT_QUEUE_ENTRY
+ struct wait_bit_queue_entry entry;
+ wait_queue_entry_t *wqe = &entry.wq_entry;
+#else
+ struct wait_bit_queue entry;
+ wait_queue_entry_t *wqe = &entry.wait;
+#endif
+ init_wait_var_entry(&entry, md, 0);
+ prepare_to_wait_event(wq, wqe, TASK_IDLE);
+ if (md->md_flags & LNET_MD_FLAG_HANDLING) {
+ /* Race with unlocked call to ->md_handler.
+ * It is safe to drop the res_lock here as the
+ * caller has only just claimed it.
+ */
+ lnet_res_unlock(cpt);
+ schedule();
+ /* Cannot check md now, it might be freed. Caller
+ * must reclaim reference and check.
+ */
+ lnet_res_lock(cpt);
+ }
+ finish_wait(wq, wqe);
+}
+
static inline void
lnet_md_free(struct lnet_libmd *md)
{
{
struct lnet_msg *msg;
- msg = kmem_cache_alloc(lnet_msg_cachep, GFP_NOFS | __GFP_ZERO);
+ msg = kmem_cache_zalloc(lnet_msg_cachep, GFP_NOFS);
return (msg);
}
{
struct lnet_rsp_tracker *rspt;
- rspt = kmem_cache_alloc(lnet_rspt_cachep, GFP_NOFS | __GFP_ZERO);
+ rspt = kmem_cache_zalloc(lnet_rspt_cachep, GFP_NOFS);
if (rspt) {
lnet_net_lock(cpt);
the_lnet.ln_counters[cpt]->lct_health.lch_rst_alloc++;
int lnet_lib_init(void);
void lnet_lib_exit(void);
+extern unsigned int lnet_response_tracking;
extern unsigned lnet_transaction_timeout;
extern unsigned lnet_retry_count;
+extern unsigned int lnet_lnd_timeout;
extern unsigned int lnet_numa_range;
extern unsigned int lnet_health_sensitivity;
extern unsigned int lnet_recovery_interval;
+extern unsigned int lnet_recovery_limit;
extern unsigned int lnet_peer_discovery_disabled;
extern unsigned int lnet_drop_asym_route;
extern unsigned int router_sensitivity_percentage;
void lnet_detach_rsp_tracker(struct lnet_libmd *md, int cpt);
void lnet_clean_zombie_rstqs(void);
+bool lnet_md_discarded(struct lnet_libmd *md);
void lnet_finalize(struct lnet_msg *msg, int rc);
bool lnet_send_error_simulation(struct lnet_msg *msg,
enum lnet_msg_hstatus *hstatus);
char *lnet_health_error2str(enum lnet_msg_hstatus hstatus);
char *lnet_msgtyp2str(int type);
-void lnet_print_hdr(struct lnet_hdr *hdr);
int lnet_fail_nid(lnet_nid_t nid, unsigned int threshold);
/** \addtogroup lnet_fault_simulation @{ */
/** @} lnet_fault_simulation */
void lnet_counters_get_common(struct lnet_counters_common *common);
-void lnet_counters_get(struct lnet_counters *counters);
+int lnet_counters_get(struct lnet_counters *counters);
void lnet_counters_reset(void);
unsigned int lnet_iov_nob(unsigned int niov, struct kvec *iov);
-int lnet_extract_iov(int dst_niov, struct kvec *dst,
- int src_niov, struct kvec *src,
- unsigned int offset, unsigned int len);
-
unsigned int lnet_kiov_nob(unsigned int niov, struct bio_vec *iov);
int lnet_extract_kiov(int dst_niov, struct bio_vec *dst,
int src_niov, struct bio_vec *src,
unsigned int soffset, unsigned int nob);
static inline void
-lnet_copy_iov2flat(int dlen, void *dest, unsigned int doffset,
- unsigned int nsiov, struct kvec *siov, unsigned int soffset,
- unsigned int nob)
-{
- struct kvec diov = { .iov_base = dest, .iov_len = dlen };
-
- lnet_copy_iov2iov(1, &diov, doffset,
- nsiov, siov, soffset, nob);
-}
-
-static inline void
lnet_copy_kiov2flat(int dlen, void *dest, unsigned int doffset,
unsigned int nsiov, struct bio_vec *skiov,
unsigned int soffset, unsigned int nob)
}
static inline void
-lnet_copy_flat2iov(unsigned int ndiov, struct kvec *diov, unsigned int doffset,
- int slen, void *src, unsigned int soffset,
- unsigned int nob)
-{
- struct kvec siov = { .iov_base = src, .iov_len = slen };
- lnet_copy_iov2iov(ndiov, diov, doffset,
- 1, &siov, soffset, nob);
-}
-
-static inline void
lnet_copy_flat2kiov(unsigned int ndiov, struct bio_vec *dkiov,
unsigned int doffset, int slen, void *src,
unsigned int soffset, unsigned int nob)
struct lnet_handle_md *mdh);
void lnet_peer_push_event(struct lnet_event *ev);
-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_parse_ip2nets(const char **networksp, const char *ip2nets);
+int lnet_parse_routes(const char *route_str, int *im_a_router);
+int lnet_parse_networks(struct list_head *nilist, const char *networks,
bool use_tcp_bonding);
bool lnet_net_unique(__u32 net_id, struct list_head *nilist,
struct lnet_net **net);
}
/*
- * A peer is alive if it satisfies the following two conditions:
- * 1. peer health >= LNET_MAX_HEALTH_VALUE * router_sensitivity_percentage
+ * A peer NI is alive if it satisfies the following two conditions:
+ * 1. peer NI health >= LNET_MAX_HEALTH_VALUE * router_sensitivity_percentage
* 2. the cached NI status received when we discover the peer is UP
*/
static inline bool
git://git.whamcloud.com / fs / lustre-release.git / blobdiff