/*
* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
*
- * Copyright (c) 2011, 2013, Intel Corporation.
+ * Copyright (c) 2011, 2016, Intel Corporation.
*
* Author: Zach Brown <zab@zabbo.net>
* Author: Peter J. Braam <braam@clusterfs.com>
*
*/
+#ifndef _SOCKLND_SOCKLND_H_
+#define _SOCKLND_SOCKLND_H_
+
#define DEBUG_PORTAL_ALLOC
#define DEBUG_SUBSYSTEM S_LND
-#if defined(__linux__)
-#include "socklnd_lib-linux.h"
-#else
-#error Unsupported Operating System
-#endif
+#include <linux/crc32.h>
+#include <linux/errno.h>
+#include <linux/if.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/kthread.h>
+#include <linux/kmod.h>
+#include <linux/list.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/stat.h>
+#include <linux/string.h>
+#include <linux/syscalls.h>
+#include <linux/sysctl.h>
+#include <linux/uio.h>
+#include <linux/unistd.h>
+#include <net/sock.h>
+#include <net/tcp.h>
#include <libcfs/libcfs.h>
#include <lnet/lnet.h>
#include <lnet/lib-lnet.h>
#include <lnet/socklnd.h>
+#ifdef HAVE_TCP_SENDPAGE_USE_SOCKET
+# define cfs_tcp_sendpage(sk, page, offset, size, flags) \
+ tcp_sendpage((sk)->sk_socket, page, offset, size, flags)
+#else /* !HAVE_TCP_SENDPAGE_USE_SOCKET */
+# define cfs_tcp_sendpage(sk, page, offset, size, flags) \
+ tcp_sendpage(sk, page, offset, size, flags)
+#endif /* HAVE_TCP_SENDPAGE_USE_SOCKET */
+
+#ifndef NETIF_F_CSUM_MASK
+# define NETIF_F_CSUM_MASK NETIF_F_ALL_CSUM
+#endif
+
+/* assume one thread for each connection type */
+#define SOCKNAL_NSCHEDS 3
+#define SOCKNAL_NSCHEDS_HIGH (SOCKNAL_NSCHEDS << 1)
+
#define SOCKNAL_PEER_HASH_SIZE 101 /* # peer lists */
#define SOCKNAL_RESCHED 100 /* # scheduler loops before reschedule */
#define SOCKNAL_INSANITY_RECONN 5000 /* connd is trying on reconn infinitely */
struct page *kss_rx_scratch_pgs[LNET_MAX_IOV];
#endif
#if !SOCKNAL_SINGLE_FRAG_TX || !SOCKNAL_SINGLE_FRAG_RX
- struct iovec kss_scratch_iov[LNET_MAX_IOV];
+ struct kvec kss_scratch_iov[LNET_MAX_IOV];
#endif
} ksock_sched_t;
#if SOCKNAL_VERSION_DEBUG
int *ksnd_protocol; /* protocol version */
#endif
-#if defined(CONFIG_SYSCTL) && !CFS_SYSFS_MODULE_PARM
- struct ctl_table_header *ksnd_sysctl; /* sysctl interface */
-#endif
} ksock_tunables_t;
typedef struct
#define SOCKNAL_INIT_ALL 2
/* A packet just assembled for transmission is represented by 1 or more
- * struct iovec fragments (the first frag contains the portals header),
+ * struct kvec fragments (the first frag contains the portals header),
* followed by 0 or more lnet_kiov_t fragments.
*
- * On the receive side, initially 1 struct iovec fragment is posted for
+ * On the receive side, initially 1 struct kvec fragment is posted for
* receive (the header). Once the header has been received, the payload is
- * received into either struct iovec or lnet_kiov_t fragments, depending on
+ * received into either struct kvec or lnet_kiov_t fragments, depending on
* what the header matched or whether the message needs forwarding. */
struct ksock_conn; /* forward ref */
atomic_t tx_refcount; /* tx reference count */
int tx_nob; /* # packet bytes */
int tx_resid; /* residual bytes */
- int tx_niov; /* # packet iovec frags */
- struct iovec *tx_iov; /* packet iovec frags */
+ int tx_niov; /* # packet kvec frags */
+ struct kvec *tx_iov; /* packet kvec frags */
int tx_nkiov; /* # packet page frags */
unsigned short tx_zc_aborted; /* aborted ZC request */
unsigned short tx_zc_capable:1; /* payload is large enough for ZC */
struct ksock_conn *tx_conn; /* owning conn */
lnet_msg_t *tx_lnetmsg; /* lnet message for lnet_finalize() */
cfs_time_t tx_deadline; /* when (in jiffies) tx times out */
- ksock_msg_t tx_msg; /* socklnd message buffer */
+ struct ksock_msg tx_msg; /* socklnd message buffer */
int tx_desc_size; /* size of this descriptor */
union {
struct {
- struct iovec iov; /* virt hdr */
- lnet_kiov_t kiov[0]; /* paged payload */
+ struct kvec iov; /* virt hdr */
+ lnet_kiov_t kiov[0]; /* paged payload */
} paged;
struct {
- struct iovec iov[1]; /* virt hdr + payload */
+ struct kvec iov[1]; /* virt hdr + payload */
} virt;
} tx_frags;
} ksock_tx_t;
/* space for the rx frag descriptors; we either read a single contiguous
* header, or up to LNET_MAX_IOV frags of payload of either type. */
typedef union {
- struct iovec iov[LNET_MAX_IOV];
+ struct kvec iov[LNET_MAX_IOV];
lnet_kiov_t kiov[LNET_MAX_IOV];
} ksock_rxiovspace_t;
struct ksock_peer *ksnc_peer; /* owning peer */
struct ksock_route *ksnc_route; /* owning route */
struct list_head ksnc_list; /* stash on peer's conn list */
- cfs_socket_t *ksnc_sock; /* actual socket */
+ struct socket *ksnc_sock; /* actual socket */
void *ksnc_saved_data_ready; /* socket's original data_ready() callback */
void *ksnc_saved_write_space; /* socket's original write_space() callback */
atomic_t ksnc_conn_refcount; /* conn refcount */
__u8 ksnc_rx_state; /* what is being read */
int ksnc_rx_nob_left; /* # bytes to next hdr/body */
int ksnc_rx_nob_wanted; /* bytes actually wanted */
- int ksnc_rx_niov; /* # iovec frags */
- struct iovec *ksnc_rx_iov; /* the iovec frags */
+ int ksnc_rx_niov; /* # kvec frags */
+ struct kvec *ksnc_rx_iov; /* the kvec frags */
int ksnc_rx_nkiov; /* # page frags */
lnet_kiov_t *ksnc_rx_kiov; /* the page frags */
ksock_rxiovspace_t ksnc_rx_iov_space;/* space for frag descriptors */
__u32 ksnc_rx_csum; /* partial checksum for incoming data */
void *ksnc_cookie; /* rx lnet_finalize passthru arg */
- ksock_msg_t ksnc_msg; /* incoming message buffer:
+ struct ksock_msg ksnc_msg; /* incoming message buffer:
* V2.x message takes the
* whole struct
* V1.x message is a bare
/* chosen NI */
lnet_ni_t *ksncr_ni;
/* accepted socket */
- cfs_socket_t *ksncr_sock;
+ struct socket *ksncr_sock;
} ksock_connreq_t;
extern ksock_nal_data_t ksocknal_data;
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 */
+ int (*pro_send_hello)(ksock_conn_t *, struct ksock_hello_msg *); /* handshake function */
+ int (*pro_recv_hello)(ksock_conn_t *, struct ksock_hello_msg *, int);/* handshake function */
void (*pro_pack)(ksock_tx_t *); /* message pack */
- void (*pro_unpack)(ksock_msg_t *); /* message unpack */
+ void (*pro_unpack)(struct ksock_msg *); /* 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 */
#define CPU_MASK_NONE 0UL
#endif
+static inline __u32 ksocknal_csum(__u32 crc, unsigned char const *p, size_t len)
+{
+#if 1
+ return crc32_le(crc, p, len);
+#else
+ while (len-- > 0)
+ crc = ((crc + 0x100) & ~0xff) | ((crc + *p++) & 0xff) ;
+
+ return crc;
+#endif
+}
+
static inline int
ksocknal_route_mask(void)
{
LASSERT (atomic_read(&conn->ksnc_sock_refcount) > 0);
if (atomic_dec_and_test(&conn->ksnc_sock_refcount)) {
LASSERT (conn->ksnc_closing);
- libcfs_sock_release(conn->ksnc_sock);
+ sock_release(conn->ksnc_sock);
conn->ksnc_sock = NULL;
ksocknal_finalize_zcreq(conn);
}
void ksocknal_shutdown (lnet_ni_t *ni);
int ksocknal_ctl(lnet_ni_t *ni, unsigned int cmd, void *arg);
int ksocknal_send (lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg);
-int ksocknal_recv(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg,
- int delayed, unsigned int niov,
- struct iovec *iov, lnet_kiov_t *kiov,
+int ksocknal_recv(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg,
+ int delayed, unsigned int niov,
+ struct kvec *iov, lnet_kiov_t *kiov,
unsigned int offset, unsigned int mlen, unsigned int rlen);
-int ksocknal_accept(lnet_ni_t *ni, cfs_socket_t *sock);
+int ksocknal_accept(lnet_ni_t *ni, struct socket *sock);
extern int ksocknal_add_peer(lnet_ni_t *ni, lnet_process_id_t id, __u32 ip, int port);
extern ksock_peer_t *ksocknal_find_peer_locked (lnet_ni_t *ni, lnet_process_id_t id);
extern ksock_peer_t *ksocknal_find_peer (lnet_ni_t *ni, lnet_process_id_t id);
extern void ksocknal_peer_failed (ksock_peer_t *peer);
extern int ksocknal_create_conn (lnet_ni_t *ni, ksock_route_t *route,
- cfs_socket_t *sock, int type);
+ struct socket *sock, int type);
extern void ksocknal_close_conn_locked (ksock_conn_t *conn, int why);
extern void ksocknal_terminate_conn (ksock_conn_t *conn);
extern void ksocknal_destroy_conn (ksock_conn_t *conn);
extern int ksocknal_scheduler (void *arg);
extern int ksocknal_connd (void *arg);
extern int ksocknal_reaper (void *arg);
-extern int ksocknal_send_hello (lnet_ni_t *ni, ksock_conn_t *conn,
- lnet_nid_t peer_nid, ksock_hello_msg_t *hello);
-extern int ksocknal_recv_hello (lnet_ni_t *ni, ksock_conn_t *conn,
- ksock_hello_msg_t *hello, lnet_process_id_t *id,
- __u64 *incarnation);
+extern int ksocknal_send_hello(lnet_ni_t *ni, ksock_conn_t *conn,
+ lnet_nid_t peer_nid, struct ksock_hello_msg *hello);
+extern int ksocknal_recv_hello(lnet_ni_t *ni, ksock_conn_t *conn,
+ struct ksock_hello_msg *hello, lnet_process_id_t *id,
+ __u64 *incarnation);
extern void ksocknal_read_callback(ksock_conn_t *conn);
extern void ksocknal_write_callback(ksock_conn_t *conn);
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);
-extern void ksocknal_lib_push_conn (ksock_conn_t *conn);
-extern int ksocknal_lib_get_conn_addrs (ksock_conn_t *conn);
-extern int ksocknal_lib_setup_sock (cfs_socket_t *so);
-extern int ksocknal_lib_send_iov (ksock_conn_t *conn, ksock_tx_t *tx);
-extern int ksocknal_lib_send_kiov (ksock_conn_t *conn, ksock_tx_t *tx);
-extern void ksocknal_lib_eager_ack (ksock_conn_t *conn);
-extern int ksocknal_lib_recv_iov (ksock_conn_t *conn);
-extern int ksocknal_lib_recv_kiov (ksock_conn_t *conn);
-extern int ksocknal_lib_get_conn_tunables (ksock_conn_t *conn, int *txmem,
- int *rxmem, int *nagle);
+extern void ksocknal_lib_save_callback(struct socket *sock, ksock_conn_t *conn);
+extern void ksocknal_lib_set_callback(struct socket *sock, ksock_conn_t *conn);
+extern void ksocknal_lib_reset_callback(struct socket *sock,
+ ksock_conn_t *conn);
+extern void ksocknal_lib_push_conn(ksock_conn_t *conn);
+extern int ksocknal_lib_get_conn_addrs(ksock_conn_t *conn);
+extern int ksocknal_lib_setup_sock(struct socket *so);
+extern int ksocknal_lib_send_iov(ksock_conn_t *conn, ksock_tx_t *tx);
+extern int ksocknal_lib_send_kiov(ksock_conn_t *conn, ksock_tx_t *tx);
+extern void ksocknal_lib_eager_ack(ksock_conn_t *conn);
+extern int ksocknal_lib_recv_iov(ksock_conn_t *conn);
+extern int ksocknal_lib_recv_kiov(ksock_conn_t *conn);
+extern int ksocknal_lib_get_conn_tunables(ksock_conn_t *conn, int *txmem,
+ int *rxmem, int *nagle);
extern int ksocknal_tunables_init(void);
-extern void ksocknal_tunables_fini(void);
-extern int ksocknal_lib_tunables_init(void);
-extern void ksocknal_lib_tunables_fini(void);
extern void ksocknal_lib_csum_tx(ksock_tx_t *tx);
extern int ksocknal_lib_memory_pressure(ksock_conn_t *conn);
extern int ksocknal_lib_bind_thread_to_cpu(int id);
+
+#endif /* _SOCKLND_SOCKLND_H_ */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff