#define SOCKNAL_RESCHED 100 /* # scheduler loops before reschedule */
#define SOCKNAL_ENOMEM_RETRY CFS_TICK /* jiffies between retries */
-#define SOCKNAL_ROUND_ROBIN 0 /* round robin / load balance */
-
#define SOCKNAL_SINGLE_FRAG_TX 0 /* disable multi-fragment sends */
#define SOCKNAL_SINGLE_FRAG_RX 0 /* disable multi-fragment receives */
#if !SOCKNAL_SINGLE_FRAG_TX || !SOCKNAL_SINGLE_FRAG_RX
struct iovec kss_scratch_iov[LNET_MAX_IOV];
#endif
-
} ksock_sched_t;
typedef struct
int *ksnd_tx_buffer_size; /* socket tx buffer size */
int *ksnd_rx_buffer_size; /* socket rx buffer size */
int *ksnd_nagle; /* enable NAGLE? */
+ int *ksnd_round_robin; /* round robin for multiple interfaces */
+ int *ksnd_keepalive; /* # secs for sending keepalive NOOP */
int *ksnd_keepalive_idle; /* # idle secs before 1st probe */
int *ksnd_keepalive_count; /* # probes */
int *ksnd_keepalive_intvl; /* time between probes */
int *ksnd_peercredits; /* # concurrent sends to 1 peer */
int *ksnd_enable_csum; /* enable check sum */
int *ksnd_inject_csum_error; /* set non-zero to inject checksum error */
- unsigned int *ksnd_zc_min_frag; /* minimum zero copy frag size */
+ unsigned int *ksnd_zc_min_payload; /* minimum zero copy payload size */
int *ksnd_zc_recv; /* enable ZC receive (for Chelsio TOE) */
int *ksnd_zc_recv_min_nfrags; /* minimum # of fragments to enable ZC receive */
#ifdef CPU_AFFINITY
int tx_niov; /* # packet iovec frags */
struct iovec *tx_iov; /* packet iovec frags */
int tx_nkiov; /* # packet page frags */
- unsigned int tx_checked_zc; /* Have I checked if I should ZC? */
+ unsigned int tx_zc_capable:1; /* payload is large enough for ZC */
+ unsigned int tx_zc_checked:1; /* Have I checked if I should ZC? */
+ unsigned int tx_nonblk:1; /* it's a non-blocking ACK */
lnet_kiov_t *tx_kiov; /* packet page frags */
struct ksock_conn *tx_conn; /* owning conn */
lnet_msg_t *tx_lnetmsg; /* lnet message for lnet_finalize() */
/* WRITER */
struct list_head ksnc_tx_list; /* where I enq waiting for output space */
struct list_head ksnc_tx_queue; /* packets waiting to be sent */
- ksock_tx_t *ksnc_tx_mono; /* V2.x only, next mono-packet, mono-packet is :
- * a. lnet packet without piggyback
- * b. noop ZC-ACK packet */
+ ksock_tx_t *ksnc_tx_carrier; /* next TX that can carry a LNet message or ZC-ACK */
cfs_time_t ksnc_tx_deadline; /* when (in jiffies) tx times out */
int ksnc_tx_bufnob; /* send buffer marker */
cfs_atomic_t ksnc_tx_nob; /* # bytes queued */
int ksnc_tx_ready; /* write space */
int ksnc_tx_scheduled; /* being progressed */
+ cfs_time_t ksnc_tx_last_post; /* time stamp of the last posted TX */
} ksock_conn_t;
typedef struct ksock_route
int ksnr_conn_count; /* # conns established by this route */
} ksock_route_t;
+#define SOCKNAL_KEEPALIVE_PING 1 /* cookie for keepalive ping */
+
typedef struct ksock_peer
{
struct list_head ksnp_list; /* stash on global peer list */
cfs_spinlock_t ksnp_lock; /* serialize, NOT safe in g_lock */
struct list_head ksnp_zc_req_list; /* zero copy requests wait for ACK */
cfs_time_t ksnp_last_alive; /* when (in jiffies) I was last alive */
+ cfs_time_t ksnp_send_keepalive; /* time to send keepalive */
lnet_ni_t *ksnp_ni; /* which network */
int ksnp_n_passive_ips; /* # of... */
__u32 ksnp_passive_ips[LNET_MAX_INTERFACES]; /* preferred local interfaces */
extern ksock_nal_data_t ksocknal_data;
extern ksock_tunables_t ksocknal_tunables;
+#define SOCKNAL_MATCH_NO 0 /* TX can't match type of connection */
+#define SOCKNAL_MATCH_YES 1 /* TX matches type of connection */
+#define SOCKNAL_MATCH_MAY 2 /* TX can be sent on the connection, but not preferred */
+
typedef struct ksock_proto
{
- int pro_version; /* version number of protocol */
- int (*pro_send_hello)(ksock_conn_t *, ksock_hello_msg_t *); /* handshake function */
- int (*pro_recv_hello)(ksock_conn_t *, ksock_hello_msg_t *, int);/* handshake function */
- void (*pro_pack)(ksock_tx_t *); /* message pack */
- void (*pro_unpack)(ksock_msg_t *); /* message unpack */
+ int pro_version; /* version number of protocol */
+ int (*pro_send_hello)(ksock_conn_t *, ksock_hello_msg_t *); /* handshake function */
+ int (*pro_recv_hello)(ksock_conn_t *, ksock_hello_msg_t *, int);/* handshake function */
+ void (*pro_pack)(ksock_tx_t *); /* message pack */
+ void (*pro_unpack)(ksock_msg_t *); /* message unpack */
+ ksock_tx_t *(*pro_queue_tx_msg)(ksock_conn_t *, ksock_tx_t *); /* queue tx on the connection */
+ int (*pro_queue_tx_zcack)(ksock_conn_t *, ksock_tx_t *, __u64); /* queue ZC ack on the connection */
+ int (*pro_handle_zcreq)(ksock_conn_t *, __u64, int); /* handle ZC request */
+ int (*pro_handle_zcack)(ksock_conn_t *, __u64, __u64); /* handle ZC ACK */
+ int (*pro_match_tx)(ksock_conn_t *, ksock_tx_t *, int); /* msg type matches the connection type:
+ * return value:
+ * return MATCH_NO : no
+ * return MATCH_YES : matching type
+ * return MATCH_MAY : can be backup */
} ksock_proto_t;
extern ksock_proto_t ksocknal_protocol_v1x;
extern ksock_proto_t ksocknal_protocol_v2x;
+extern ksock_proto_t ksocknal_protocol_v3x;
#define KSOCK_PROTO_V1_MAJOR LNET_PROTO_TCP_VERSION_MAJOR
#define KSOCK_PROTO_V1_MINOR LNET_PROTO_TCP_VERSION_MINOR
cfs_atomic_inc(&tx->tx_refcount);
}
+extern void ksocknal_tx_prep (ksock_conn_t *, ksock_tx_t *tx);
extern void ksocknal_tx_done (lnet_ni_t *ni, ksock_tx_t *tx);
static inline void
__u32 ipaddr, int why);
extern int ksocknal_close_conn_and_siblings (ksock_conn_t *conn, int why);
extern int ksocknal_close_matching_conns (lnet_process_id_t id, __u32 ipaddr);
-
+extern ksock_conn_t *ksocknal_find_conn_locked(ksock_peer_t *peer,
+ ksock_tx_t *tx, int nonblk);
+
+extern int ksocknal_launch_packet(lnet_ni_t *ni, ksock_tx_t *tx,
+ lnet_process_id_t id);
+extern ksock_tx_t *ksocknal_alloc_tx(int type, int size);
+extern void ksocknal_free_tx (ksock_tx_t *tx);
+extern ksock_tx_t *ksocknal_alloc_tx_noop(__u64 cookie, int nonblk);
+extern void ksocknal_next_tx_carrier(ksock_conn_t *conn);
extern void ksocknal_queue_tx_locked (ksock_tx_t *tx, ksock_conn_t *conn);
extern void ksocknal_txlist_done (lnet_ni_t *ni, struct list_head *txlist, int error);
extern void ksocknal_notify (lnet_ni_t *ni, lnet_nid_t gw_nid, int alive);
extern void ksocknal_read_callback(ksock_conn_t *conn);
extern void ksocknal_write_callback(ksock_conn_t *conn);
-extern int ksocknal_lib_zc_capable(cfs_socket_t *sock);
+extern int ksocknal_lib_zc_capable(ksock_conn_t *conn);
extern void ksocknal_lib_save_callback(cfs_socket_t *sock, ksock_conn_t *conn);
extern void ksocknal_lib_set_callback(cfs_socket_t *sock, ksock_conn_t *conn);
extern void ksocknal_lib_reset_callback(cfs_socket_t *sock, ksock_conn_t *conn);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff