#include <asm/system.h>
#include <asm/uaccess.h>
+#include <asm/irq.h>
#include <linux/init.h>
#include <linux/fs.h>
#define DEBUG_SUBSYSTEM S_SOCKNAL
#include <linux/kp30.h>
+#include <linux/portals_compat25.h>
+#include <linux/kpr.h>
#include <portals/p30.h>
#include <portals/lib-p30.h>
+#include <portals/nal.h>
#include <portals/socknal.h>
-#if CONFIG_SMP
-# define SOCKNAL_N_SCHED num_online_cpus() /* # socknal schedulers */
-#else
-# define SOCKNAL_N_SCHED 1 /* # socknal schedulers */
-#endif
#define SOCKNAL_N_AUTOCONNECTD 4 /* # socknal autoconnect daemons */
#define SOCKNAL_MIN_RECONNECT_INTERVAL HZ /* first failed connection retry... */
#define SOCKNAL_TYPED_CONNS 1 /* unidirectional large, bidirectional small? */
#define SOCKNAL_ZC_MIN_FRAG (2<<10) /* default smallest zerocopy fragment */
#define SOCKNAL_MIN_BULK (1<<10) /* smallest "large" message */
-#define SOCKNAL_USE_KEEPALIVES 0 /* use tcp/ip keepalive? */
+#define SOCKNAL_BUFFER_SIZE (8<<20) /* default socket buffer size */
+#define SOCKNAL_NAGLE 0 /* enable/disable NAGLE? */
+#define SOCKNAL_IRQ_AFFINITY 1 /* enable/disable IRQ affinity? */
+#define SOCKNAL_KEEPALIVE_IDLE 0 /* # seconds idle before 1st probe */
+#define SOCKNAL_KEEPALIVE_COUNT 10 /* # unanswered probes to determine peer death */
+#define SOCKNAL_KEEPALIVE_INTVL 1 /* seconds between probes */
#define SOCKNAL_PEER_HASH_SIZE 101 /* # peer lists */
#define SOCKNAL_SMALL_FWD_PAGES 1 /* # pages in a small message fwd buffer */
-#define SOCKNAL_LARGE_FWD_PAGES (PAGE_ALIGN (sizeof (ptl_hdr_t) + PTL_MTU) >> PAGE_SHIFT)
+#define SOCKNAL_LARGE_FWD_PAGES (PAGE_ALIGN(PTL_MTU) >> PAGE_SHIFT)
/* # pages in a large message fwd buffer */
#define SOCKNAL_RESCHED 100 /* # scheduler loops before reschedule */
#define SOCKNAL_ENOMEM_RETRY 1 /* jiffies between retries */
+#define SOCKNAL_MAX_INTERFACES 16 /* Largest number of interfaces we bind */
+
+#define SOCKNAL_ROUND_ROBIN 0 /* round robin / load balance */
+
#define SOCKNAL_TX_LOW_WATER(sk) (((sk)->sk_sndbuf*8)/10)
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,72))
+# define sk_allocation allocation
# define sk_data_ready data_ready
# define sk_write_space write_space
# define sk_user_data user_data
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0))
# define sk_wmem_queued wmem_queued
+# define sk_err err
#endif
typedef struct /* pool of forwarding buffers */
struct list_head fmp_idle_fmbs; /* free buffers */
struct list_head fmp_blocked_conns; /* connections waiting for a buffer */
int fmp_nactive_fmbs; /* # buffers in use */
+ int fmp_buff_pages; /* # pages per buffer */
} ksock_fmb_pool_t;
int kss_nconns; /* # connections assigned to this scheduler */
} ksock_sched_t;
-typedef struct {
+typedef struct
+{
int ksni_valid:1; /* been set yet? */
int ksni_bound:1; /* bound to a cpu yet? */
int ksni_sched:6; /* which scheduler (assumes < 64) */
} ksock_irqinfo_t;
-typedef struct {
- int ksnd_init; /* initialisation state */
+typedef struct
+{
+ __u32 ksni_ipaddr; /* interface's IP address */
+ __u32 ksni_netmask; /* interface's network mask */
+ int ksni_nroutes; /* # routes using (active) */
+ int ksni_npeers; /* # peers using (passive) */
+} ksock_interface_t;
+
+typedef struct
+{
int ksnd_io_timeout; /* "stuck" socket timeout (seconds) */
int ksnd_eager_ack; /* make TCP ack eagerly? */
int ksnd_typed_conns; /* drive sockets by type? */
int ksnd_min_bulk; /* smallest "large" message */
+ int ksnd_buffer_size; /* socket buffer size */
+ int ksnd_nagle; /* enable NAGLE? */
+ int ksnd_irq_affinity; /* enable IRQ affinity? */
+ int ksnd_keepalive_idle; /* # idle secs before 1st probe */
+ int ksnd_keepalive_count; /* # probes */
+ int ksnd_keepalive_intvl; /* time between probes */
#if SOCKNAL_ZC
unsigned int ksnd_zc_min_frag; /* minimum zero copy frag size */
#endif
struct ctl_table_header *ksnd_sysctl; /* sysctl interface */
+} ksock_tunables_t;
+
+typedef struct
+{
+ int ksnd_init; /* initialisation state */
__u64 ksnd_incarnation; /* my epoch */
rwlock_t ksnd_global_lock; /* stabilize peer/conn ops */
struct list_head *ksnd_peers; /* hash table of all my known peers */
int ksnd_peer_hash_size; /* size of ksnd_peers */
- nal_cb_t *ksnd_nal_cb;
- spinlock_t ksnd_nal_cb_lock; /* lib cli/sti lock */
-
- atomic_t ksnd_nthreads; /* # live threads */
+ int ksnd_nthreads; /* # live threads */
int ksnd_shuttingdown; /* tell threads to exit */
- ksock_sched_t *ksnd_schedulers; /* scheduler state */
+ int ksnd_nschedulers; /* # schedulers */
+ ksock_sched_t *ksnd_schedulers; /* their state */
atomic_t ksnd_npeers; /* total # peers extant */
atomic_t ksnd_nclosing_conns; /* # closed conns extant */
spinlock_t ksnd_autoconnectd_lock; /* serialise */
ksock_irqinfo_t ksnd_irqinfo[NR_IRQS];/* irq->scheduler lookup */
+
+ int ksnd_ninterfaces;
+ ksock_interface_t ksnd_interfaces[SOCKNAL_MAX_INTERFACES]; /* published interfaces */
} ksock_nal_data_t;
#define SOCKNAL_INIT_NOTHING 0
#define SOCKNAL_INIT_DATA 1
-#define SOCKNAL_INIT_PTL 2
+#define SOCKNAL_INIT_LIB 2
#define SOCKNAL_INIT_ALL 3
/* A packet just assembled for transmission is represented by 1 or more
- * struct iovec fragments and 0 or more ptl_kiov_t fragments. Forwarded
- * messages, or messages from an MD with PTL_MD_KIOV _not_ set have 0
- * ptl_kiov_t fragments. Messages from an MD with PTL_MD_KIOV set, have 1
- * struct iovec fragment (the header) and up to PTL_MD_MAX_IOV ptl_kiov_t
- * fragments.
+ * struct iovec fragments (the first frag contains the portals header),
+ * followed by 0 or more ptl_kiov_t fragments.
*
* On the receive side, initially 1 struct iovec fragment is posted for
- * receive (the header). Once the header has been received, if the message
- * requires forwarding or will be received into mapped memory, up to
- * PTL_MD_MAX_IOV struct iovec fragments describe the target memory.
- * Otherwise up to PTL_MD_MAX_IOV ptl_kiov_t fragments are used.
- */
+ * receive (the header). Once the header has been received, the payload is
+ * received into either struct iovec or ptl_kiov_t fragments, depending on
+ * what the header matched or whether the message needs forwarding. */
struct ksock_conn; /* forward ref */
struct ksock_peer; /* forward ref */
#endif
} ksock_tx_t;
+typedef struct /* forwarded packet */
+{
+ ksock_tx_t ftx_tx; /* send info */
+ struct iovec ftx_iov; /* hdr iovec */
+} ksock_ftx_t;
+
#define KSOCK_ZCCD_2_TX(ptr) list_entry (ptr, ksock_tx_t, tx_zccd)
/* network zero copy callback descriptor embedded in ksock_tx_t */
{ /* (socknal->router) */
struct list_head fmb_list; /* queue idle */
kpr_fwd_desc_t fmb_fwd; /* router's descriptor */
- int fmb_npages; /* # pages allocated */
ksock_fmb_pool_t *fmb_pool; /* owning pool */
struct ksock_peer *fmb_peer; /* peer received from */
- struct page *fmb_pages[SOCKNAL_LARGE_FWD_PAGES];
- struct iovec fmb_iov[SOCKNAL_LARGE_FWD_PAGES];
+ ptl_hdr_t fmb_hdr; /* message header */
+ ptl_kiov_t fmb_kiov[0]; /* payload frags */
} ksock_fmb_t;
/* space for the rx frag descriptors; we either read a single contiguous
- * header, or PTL_MD_MAX_IOV frags of payload of either type. */
+ * header, or up to PTL_MD_MAX_IOV frags of payload of either type. */
typedef union {
struct iovec iov[PTL_MD_MAX_IOV];
ptl_kiov_t kiov[PTL_MD_MAX_IOV];
void *ksnc_saved_write_space; /* socket's original write_space() callback */
atomic_t ksnc_refcount; /* # users */
ksock_sched_t *ksnc_scheduler; /* who schedules this connection */
+ __u32 ksnc_myipaddr; /* my IP */
__u32 ksnc_ipaddr; /* peer's IP */
int ksnc_port; /* peer's port */
int ksnc_closing; /* being shut down */
struct list_head ksnc_tx_list; /* where I enq waiting for output space */
struct list_head ksnc_tx_queue; /* packets waiting to be sent */
unsigned long ksnc_tx_deadline; /* when (in jiffies) tx times out */
+ int ksnc_tx_bufnob; /* send buffer marker */
atomic_t ksnc_tx_nob; /* # bytes queued */
int ksnc_tx_ready; /* write space */
int ksnc_tx_scheduled; /* being progressed */
struct list_head ksnr_connect_list; /* chain on autoconnect list */
struct ksock_peer *ksnr_peer; /* owning peer */
atomic_t ksnr_refcount; /* # users */
- int ksnr_sharecount; /* lconf usage counter */
unsigned long ksnr_timeout; /* when (in jiffies) reconnection can happen next */
unsigned int ksnr_retry_interval; /* how long between retries */
- __u32 ksnr_ipaddr; /* an IP address for this peer */
+ __u32 ksnr_myipaddr; /* my IP */
+ __u32 ksnr_ipaddr; /* IP address to connect to */
int ksnr_port; /* port to connect to */
- int ksnr_buffer_size; /* size of socket buffers */
- unsigned int ksnr_irq_affinity:1; /* set affinity? */
- unsigned int ksnr_nonagel:1; /* disable nagle? */
- unsigned int ksnr_eager:1; /* connect eagery? */
unsigned int ksnr_connecting:4; /* autoconnects in progress by type */
unsigned int ksnr_connected:4; /* connections established by type */
unsigned int ksnr_deleted:1; /* been removed from peer? */
+ unsigned int ksnr_share_count; /* created explicitly? */
int ksnr_conn_count; /* # conns established by this route */
} ksock_route_t;
struct list_head ksnp_list; /* stash on global peer list */
ptl_nid_t ksnp_nid; /* who's on the other end(s) */
atomic_t ksnp_refcount; /* # users */
+ int ksnp_sharecount; /* lconf usage counter */
int ksnp_closing; /* being closed */
int ksnp_error; /* errno on closing last conn */
struct list_head ksnp_conns; /* all active connections */
struct list_head ksnp_routes; /* routes */
struct list_head ksnp_tx_queue; /* waiting packets */
unsigned long ksnp_last_alive; /* when (in jiffies) I was last alive */
+ int ksnp_n_passive_ips; /* # of... */
+ __u32 ksnp_passive_ips[SOCKNAL_MAX_INTERFACES]; /* preferred local interfaces */
} ksock_peer_t;
-extern nal_cb_t ksocknal_lib;
+extern lib_nal_t ksocknal_lib;
extern ksock_nal_data_t ksocknal_data;
+extern ksock_tunables_t ksocknal_tunables;
static inline struct list_head *
-ksocknal_nid2peerlist (ptl_nid_t nid)
+ksocknal_nid2peerlist (ptl_nid_t nid)
{
unsigned int hash = ((unsigned int)nid) % ksocknal_data.ksnd_peer_hash_size;
-
+
return (&ksocknal_data.ksnd_peers [hash]);
}
static inline int
-ksocknal_getconnsock (ksock_conn_t *conn)
+ksocknal_getconnsock (ksock_conn_t *conn)
{
int rc = -ESHUTDOWN;
-
+
read_lock (&ksocknal_data.ksnd_global_lock);
if (!conn->ksnc_closing) {
rc = 0;
fput (conn->ksnc_sock->file);
}
+#ifndef CONFIG_SMP
+static inline
+int ksocknal_nsched(void)
+{
+ return 1;
+}
+#else
+#include <linux/lustre_version.h>
+# if !(defined(CONFIG_X86) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,21))) || defined(CONFIG_X86_64) || (LUSTRE_KERNEL_VERSION < 39) || ((LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)) && !defined(CONFIG_X86_HT))
+static inline int
+ksocknal_nsched(void)
+{
+ return num_online_cpus();
+}
+
+static inline int
+ksocknal_sched2cpu(int i)
+{
+ return i;
+}
+
+static inline int
+ksocknal_irqsched2cpu(int i)
+{
+ return i;
+}
+# else
+static inline int
+ksocknal_nsched(void)
+{
+ if (smp_num_siblings == 1)
+ return (num_online_cpus());
+
+ /* We need to know if this assumption is crap */
+ LASSERT (smp_num_siblings == 2);
+ return (num_online_cpus()/2);
+}
+
+static inline int
+ksocknal_sched2cpu(int i)
+{
+ if (smp_num_siblings == 1)
+ return i;
+
+ return (i * 2);
+}
+
+static inline int
+ksocknal_irqsched2cpu(int i)
+{
+ return (ksocknal_sched2cpu(i) + 1);
+}
+# endif
+#endif
+
extern void ksocknal_put_route (ksock_route_t *route);
extern void ksocknal_put_peer (ksock_peer_t *peer);
extern ksock_peer_t *ksocknal_find_peer_locked (ptl_nid_t nid);
extern int ksocknal_del_route (ptl_nid_t nid, __u32 ipaddr,
int single, int keep_conn);
extern int ksocknal_create_conn (ksock_route_t *route,
- struct socket *sock, int bind_irq, 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 void ksocknal_write_space(struct sock *sk);
extern int ksocknal_autoconnectd (void *arg);
extern int ksocknal_reaper (void *arg);
+extern int ksocknal_get_conn_tunables (ksock_conn_t *conn, int *txmem,
+ int *rxmem, int *nagle);
extern int ksocknal_setup_sock (struct socket *sock);
-extern int ksocknal_hello (struct socket *sock,
- ptl_nid_t *nid, int *type, __u64 *incarnation);
+extern int ksocknal_send_hello (ksock_conn_t *conn, __u32 *ipaddrs, int nipaddrs);
+extern int ksocknal_recv_hello (ksock_conn_t *conn,
+ ptl_nid_t *nid, __u64 *incarnation, __u32 *ipaddrs);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff