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_fmr_pool_size; /* # FMRs in pool */
- int *kib_fmr_flush_trigger; /* When to trigger FMR flush */
- int *kib_fmr_cache; /* enable FMR pool cache? */
#if defined(CONFIG_SYSCTL) && !CFS_SYSFS_MODULE_PARM
struct ctl_table_header *kib_sysctl; /* sysctl interface */
#endif
#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 ? \
- IBLND_MSG_QUEUE_SIZE_V1 : \
- *kiblnd_tunables.kib_peertxcredits) /* # messages/RDMAs in-flight */
-#define IBLND_CREDITS_HIGHWATER(v) ((v) == IBLND_MSG_VERSION_1 ? \
- IBLND_CREDIT_HIGHWATER_V1 : \
- *kiblnd_tunables.kib_peercredits_hiw) /* when eagerly to return credits */
+/* when eagerly to return credits */
+#define IBLND_CREDITS_HIGHWATER(t, v) ((v) == IBLND_MSG_VERSION_1 ? \
+ IBLND_CREDIT_HIGHWATER_V1 : \
+ t->lnd_peercredits_hiw)
-#ifdef HAVE_RDMA_CREATE_ID_4ARG
-#define kiblnd_rdma_create_id(cb, dev, ps, qpt) rdma_create_id(cb, dev, ps, qpt)
+#ifdef HAVE_RDMA_CREATE_ID_5ARG
+# define kiblnd_rdma_create_id(cb, dev, ps, qpt) rdma_create_id(current->nsproxy->net_ns, \
+ cb, dev, \
+ ps, qpt)
#else
-#define kiblnd_rdma_create_id(cb, dev, ps, qpt) rdma_create_id(cb, dev, ps)
+# ifdef HAVE_RDMA_CREATE_ID_4ARG
+# define kiblnd_rdma_create_id(cb, dev, ps, qpt) rdma_create_id(cb, dev, \
+ ps, qpt)
+# else
+# define kiblnd_rdma_create_id(cb, dev, ps, qpt) rdma_create_id(cb, dev, ps)
+# endif
#endif
-static inline int
-kiblnd_concurrent_sends_v1(void)
-{
- if (*kiblnd_tunables.kib_concurrent_sends > IBLND_MSG_QUEUE_SIZE_V1 * 2)
- return IBLND_MSG_QUEUE_SIZE_V1 * 2;
-
- if (*kiblnd_tunables.kib_concurrent_sends < IBLND_MSG_QUEUE_SIZE_V1 / 2)
- return IBLND_MSG_QUEUE_SIZE_V1 / 2;
-
- return *kiblnd_tunables.kib_concurrent_sends;
-}
-
-#define IBLND_CONCURRENT_SENDS(v) ((v) == IBLND_MSG_VERSION_1 ? \
- kiblnd_concurrent_sends_v1() : \
- *kiblnd_tunables.kib_concurrent_sends)
/* 2 OOB shall suffice for 1 keepalive and 1 returning credits */
#define IBLND_OOB_CAPABLE(v) ((v) != IBLND_MSG_VERSION_1)
#define IBLND_OOB_MSGS(v) (IBLND_OOB_CAPABLE(v) ? 2 : 0)
#define IBLND_MSG_SIZE (4<<10) /* max size of queued messages (inc hdr) */
#define IBLND_MAX_RDMA_FRAGS LNET_MAX_IOV /* max # of fragments supported */
-#define IBLND_CFG_RDMA_FRAGS (*kiblnd_tunables.kib_map_on_demand != 0 ? \
- *kiblnd_tunables.kib_map_on_demand : \
- IBLND_MAX_RDMA_FRAGS) /* max # of fragments configured by user */
-#define IBLND_RDMA_FRAGS(v) ((v) == IBLND_MSG_VERSION_1 ? \
- IBLND_MAX_RDMA_FRAGS : IBLND_CFG_RDMA_FRAGS)
/************************/
/* derived constants... */
/* WRs and CQEs (per connection) */
#define IBLND_RECV_WRS(c) IBLND_RX_MSGS(c)
#define IBLND_SEND_WRS(c) \
- ((c->ibc_max_frags + 1) * IBLND_CONCURRENT_SENDS(c->ibc_version))
+ ((c->ibc_max_frags + 1) * kiblnd_concurrent_sends(c->ibc_version, \
+ c->ibc_peer->ibp_ni))
#define IBLND_CQ_ENTRIES(c) (IBLND_RECV_WRS(c) + IBLND_SEND_WRS(c))
struct kib_hca_dev;
int fps_cpt; /* CPT id */
int fps_pool_size;
int fps_flush_trigger;
+ int fps_cache;
/* is allocating new pool */
int fps_increasing;
/* time stamp for retry if failed to allocate */
cfs_time_t fps_next_retry;
} kib_fmr_poolset_t;
+struct kib_fast_reg_descriptor { /* For fast registration */
+ struct list_head frd_list;
+ struct ib_send_wr frd_inv_wr;
+ struct ib_send_wr frd_fastreg_wr;
+ struct ib_mr *frd_mr;
+ struct ib_fast_reg_page_list *frd_frpl;
+ bool frd_valid;
+};
+
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 */
+ union {
+ struct {
+ struct ib_fmr_pool *fpo_fmr_pool; /* IB FMR pool */
+ } fmr;
+ struct { /* For fast registration */
+ struct list_head fpo_pool_list;
+ int fpo_pool_size;
+ } fast_reg;
+ };
cfs_time_t fpo_deadline; /* deadline of this pool */
int fpo_failed; /* fmr pool is failed */
int fpo_map_count; /* # of mapped FMR */
+ int fpo_is_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 */
+ kib_fmr_pool_t *fmr_pool; /* pool of FMR */
+ struct ib_pool_fmr *fmr_pfmr; /* IB pool fmr */
+ struct kib_fast_reg_descriptor *fmr_frd;
+ u32 fmr_key;
} kib_fmr_t;
typedef struct kib_net
#define IBLND_MSG_GET_REQ 0xd6 /* getreq (sink->src) */
#define IBLND_MSG_GET_DONE 0xd7 /* completion (src->sink: all OK) */
-/* flag to show a peer can understand connrace protocol */
-#define IBLND_CONNREQ_NOOP (1U << 0)
-/* want to win connrace */
-#define IBLND_CONNREQ_WIN_WISH (1U << 1)
-
typedef struct {
__u32 ibr_magic; /* sender's magic */
__u16 ibr_version; /* sender's version */
__u16 ibc_version;
/* reconnect later */
__u16 ibc_reconnect:1;
- /* rejected by connrace */
- __u16 ibc_connrace:1;
/* which instance of the peer */
__u64 ibc_incarnation;
/* # users */
unsigned short ibp_connecting;
/* reconnect this peer later */
unsigned short ibp_reconnecting:1;
- /* wish to win the connrace */
- unsigned short ibp_connrace_win:1;
/* # consecutive reconnection attempts to this peer */
unsigned int ibp_reconnected;
/* errno on closing this peer */
__u16 ibp_queue_depth;
} kib_peer_t;
+#ifndef HAVE_IB_INC_RKEY
+/**
+ * ib_inc_rkey - increments the key portion of the given rkey. Can be used
+ * for calculating a new rkey for type 2 memory windows.
+ * @rkey - the rkey to increment.
+ */
+static inline u32 ib_inc_rkey(u32 rkey)
+{
+ const u32 mask = 0x000000ff;
+ return ((rkey + 1) & mask) | (rkey & ~mask);
+}
+#endif
+
extern kib_data_t kiblnd_data;
extern void kiblnd_hdev_destroy(kib_hca_dev_t *hdev);
+int kiblnd_msg_queue_size(int version, struct lnet_ni *ni);
+
+/* max # of fragments configured by user */
+static inline int
+kiblnd_cfg_rdma_frags(struct lnet_ni *ni)
+{
+ struct lnet_ioctl_config_o2iblnd_tunables *tunables;
+ int mod;
+
+ tunables = &ni->ni_lnd_tunables->lt_tun_u.lt_o2ib;
+ mod = tunables->lnd_map_on_demand;
+ return mod != 0 ? mod : IBLND_MAX_RDMA_FRAGS;
+}
+
+static inline int
+kiblnd_rdma_frags(int version, struct lnet_ni *ni)
+{
+ return version == IBLND_MSG_VERSION_1 ?
+ IBLND_MAX_RDMA_FRAGS :
+ kiblnd_cfg_rdma_frags(ni);
+}
+
+static inline int
+kiblnd_concurrent_sends(int version, struct lnet_ni *ni)
+{
+ struct lnet_ioctl_config_o2iblnd_tunables *tunables;
+ int concurrent_sends;
+
+ tunables = &ni->ni_lnd_tunables->lt_tun_u.lt_o2ib;
+ concurrent_sends = tunables->lnd_concurrent_sends;
+
+ if (version == IBLND_MSG_VERSION_1) {
+ if (concurrent_sends > IBLND_MSG_QUEUE_SIZE_V1 * 2)
+ return IBLND_MSG_QUEUE_SIZE_V1 * 2;
+
+ if (concurrent_sends < IBLND_MSG_QUEUE_SIZE_V1 / 2)
+ return IBLND_MSG_QUEUE_SIZE_V1 / 2;
+ }
+
+ return concurrent_sends;
+}
+
static inline void
kiblnd_hdev_addref_locked(kib_hca_dev_t *hdev)
{
} while (0)
static inline bool
-kiblnd_peer_win_race(kib_peer_t *peer, kib_msg_t *msg)
-{
- if (!peer->ibp_connecting)
- return true; /* no race */
-
- if (msg->ibm_credits & IBLND_CONNREQ_NOOP) {
- /* peer can understand connrace protocol */
-
- if (msg->ibm_credits & IBLND_CONNREQ_WIN_WISH)
- return true; /* peer has win wish */
-
- if (peer->ibp_connrace_win)
- return false; /* I wish to win, reject peer */
- }
- /* tie-break connection race in favour of the higher NID */
- return peer->ibp_nid > peer->ibp_ni->ni_nid;
-}
-
-static inline bool
kiblnd_peer_connecting(kib_peer_t *peer)
{
return peer->ibp_connecting != 0 ||
static inline int
kiblnd_need_noop(kib_conn_t *conn)
{
- LASSERT (conn->ibc_state >= IBLND_CONN_ESTABLISHED);
+ lnet_ni_t *ni = conn->ibc_peer->ibp_ni;
+ struct lnet_ioctl_config_o2iblnd_tunables *tunables;
+
+ LASSERT(conn->ibc_state >= IBLND_CONN_ESTABLISHED);
+ tunables = &ni->ni_lnd_tunables->lt_tun_u.lt_o2ib;
if (conn->ibc_outstanding_credits <
- IBLND_CREDITS_HIGHWATER(conn->ibc_version) &&
+ IBLND_CREDITS_HIGHWATER(tunables, conn->ibc_version) &&
!kiblnd_send_keepalive(conn))
return 0; /* No need to send NOOP */
/* CAVEAT EMPTOR: We rely on descriptor alignment to allow us to use the
* lowest bits of the work request id to stash the work item type. */
-#define IBLND_WID_INVAL 0
-#define IBLND_WID_TX 1
-#define IBLND_WID_RX 2
-#define IBLND_WID_RDMA 3
-#define IBLND_WID_MASK 3UL
+#define IBLND_WID_INVAL 0
+#define IBLND_WID_TX 1
+#define IBLND_WID_RX 2
+#define IBLND_WID_RDMA 3
+#define IBLND_WID_MR 4
+#define IBLND_WID_MASK 7UL
static inline __u64
kiblnd_ptr2wreqid (void *ptr, int type)
#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,
- kib_rdma_desc_t *rd,
+struct ib_mr *kiblnd_find_rd_dma_mr(struct lnet_ni *ni, kib_rdma_desc_t *rd,
int negotiated_nfrags);
void kiblnd_map_rx_descs(kib_conn_t *conn);
void kiblnd_unmap_rx_descs(kib_conn_t *conn);
void kiblnd_pool_free_node(kib_pool_t *pool, struct list_head *node);
struct list_head *kiblnd_pool_alloc_node(kib_poolset_t *ps);
-int kiblnd_fmr_pool_map(kib_fmr_poolset_t *fps, __u64 *pages,
- int npages, __u64 iov, kib_fmr_t *fmr);
+int kiblnd_fmr_pool_map(kib_fmr_poolset_t *fps, __u64 *pages, int npages,
+ __u32 nob, __u64 iov, bool is_rx, kib_fmr_t *fmr);
void kiblnd_fmr_pool_unmap(kib_fmr_t *fmr, int status);
+int kiblnd_tunables_setup(struct lnet_ni *ni);
int kiblnd_tunables_init(void);
void kiblnd_tunables_fini(void);
int kiblnd_dev_failover(kib_dev_t *dev);
int kiblnd_create_peer(lnet_ni_t *ni, kib_peer_t **peerp, lnet_nid_t nid);
void kiblnd_destroy_peer (kib_peer_t *peer);
-bool kiblnd_reconnect_peer(kib_peer_t *peer, bool connrace_win);
+bool kiblnd_reconnect_peer(kib_peer_t *peer);
void kiblnd_destroy_dev (kib_dev_t *dev);
void kiblnd_unlink_peer_locked (kib_peer_t *peer);
kib_peer_t *kiblnd_find_peer_locked (lnet_nid_t nid);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff