static ksock_interface_t *
ksocknal_ip2iface(lnet_ni_t *ni, __u32 ip)
{
- ksock_net_t *net = ni->ni_data;
- int i;
+ ksock_net_t *net = ni->ni_data;
+ int i;
ksock_interface_t *iface;
for (i = 0; i < net->ksnn_ninterfaces; i++) {
static int
ksocknal_create_peer(ksock_peer_t **peerp, lnet_ni_t *ni, lnet_process_id_t id)
{
- ksock_net_t *net = ni->ni_data;
- ksock_peer_t *peer;
+ ksock_net_t *net = ni->ni_data;
+ ksock_peer_t *peer;
LASSERT(id.nid != LNET_NID_ANY);
LASSERT(id.pid != LNET_PID_ANY);
void
ksocknal_destroy_peer(ksock_peer_t *peer)
{
- ksock_net_t *net = peer->ksnp_ni->ni_data;
+ ksock_net_t *net = peer->ksnp_ni->ni_data;
CDEBUG(D_NET, "peer %s %p deleted\n",
libcfs_id2str(peer->ksnp_id), peer);
ksock_peer_t *
ksocknal_find_peer_locked(lnet_ni_t *ni, lnet_process_id_t id)
{
- struct list_head *peer_list = ksocknal_nid2peerlist(id.nid);
- struct list_head *tmp;
- ksock_peer_t *peer;
+ struct list_head *peer_list = ksocknal_nid2peerlist(id.nid);
+ struct list_head *tmp;
+ ksock_peer_t *peer;
list_for_each(tmp, peer_list) {
ksock_peer_t *
ksocknal_find_peer(lnet_ni_t *ni, lnet_process_id_t id)
{
- ksock_peer_t *peer;
+ ksock_peer_t *peer;
read_lock(&ksocknal_data.ksnd_global_lock);
peer = ksocknal_find_peer_locked(ni, id);
static void
ksocknal_unlink_peer_locked(ksock_peer_t *peer)
{
- int i;
- __u32 ip;
+ int i;
+ __u32 ip;
ksock_interface_t *iface;
for (i = 0; i < peer->ksnp_n_passive_ips; i++) {
lnet_process_id_t *id, __u32 *myip, __u32 *peer_ip,
int *port, int *conn_count, int *share_count)
{
- ksock_peer_t *peer;
- struct list_head *ptmp;
- ksock_route_t *route;
- struct list_head *rtmp;
- int i;
- int j;
- int rc = -ENOENT;
+ ksock_peer_t *peer;
+ struct list_head *ptmp;
+ ksock_route_t *route;
+ struct list_head *rtmp;
+ int i;
+ int j;
+ int rc = -ENOENT;
read_lock(&ksocknal_data.ksnd_global_lock);
static void
ksocknal_associate_route_conn_locked(ksock_route_t *route, ksock_conn_t *conn)
{
- ksock_peer_t *peer = route->ksnr_peer;
- int type = conn->ksnc_type;
+ ksock_peer_t *peer = route->ksnr_peer;
+ int type = conn->ksnc_type;
ksock_interface_t *iface;
conn->ksnc_route = route;
static void
ksocknal_add_route_locked(ksock_peer_t *peer, ksock_route_t *route)
{
- struct list_head *tmp;
- ksock_conn_t *conn;
- ksock_route_t *route2;
+ struct list_head *tmp;
+ ksock_conn_t *conn;
+ ksock_route_t *route2;
LASSERT(!peer->ksnp_closing);
LASSERT(route->ksnr_peer == NULL);
static void
ksocknal_del_route_locked(ksock_route_t *route)
{
- ksock_peer_t *peer = route->ksnr_peer;
+ ksock_peer_t *peer = route->ksnr_peer;
ksock_interface_t *iface;
- ksock_conn_t *conn;
- struct list_head *ctmp;
- struct list_head *cnxt;
+ ksock_conn_t *conn;
+ struct list_head *ctmp;
+ struct list_head *cnxt;
LASSERT(!route->ksnr_deleted);
int
ksocknal_add_peer(lnet_ni_t *ni, lnet_process_id_t id, __u32 ipaddr, int port)
{
- struct list_head *tmp;
- ksock_peer_t *peer;
- ksock_peer_t *peer2;
- ksock_route_t *route;
- ksock_route_t *route2;
- int rc;
+ struct list_head *tmp;
+ ksock_peer_t *peer;
+ ksock_peer_t *peer2;
+ ksock_route_t *route;
+ ksock_route_t *route2;
+ int rc;
if (id.nid == LNET_NID_ANY ||
id.pid == LNET_PID_ANY)
static void
ksocknal_del_peer_locked(ksock_peer_t *peer, __u32 ip)
{
- ksock_conn_t *conn;
- ksock_route_t *route;
- struct list_head *tmp;
- struct list_head *nxt;
- int nshared;
+ ksock_conn_t *conn;
+ ksock_route_t *route;
+ struct list_head *tmp;
+ struct list_head *nxt;
+ int nshared;
LASSERT(!peer->ksnp_closing);
ksocknal_del_peer(lnet_ni_t *ni, lnet_process_id_t id, __u32 ip)
{
LIST_HEAD(zombies);
- struct list_head *ptmp;
- struct list_head *pnxt;
- ksock_peer_t *peer;
- int lo;
- int hi;
- int i;
- int rc = -ENOENT;
+ struct list_head *ptmp;
+ struct list_head *pnxt;
+ ksock_peer_t *peer;
+ int lo;
+ int hi;
+ int i;
+ int rc = -ENOENT;
write_lock_bh(&ksocknal_data.ksnd_global_lock);
static ksock_conn_t *
ksocknal_get_conn_by_idx(lnet_ni_t *ni, int index)
{
- ksock_peer_t *peer;
- struct list_head *ptmp;
- ksock_conn_t *conn;
- struct list_head *ctmp;
- int i;
+ ksock_peer_t *peer;
+ struct list_head *ptmp;
+ ksock_conn_t *conn;
+ struct list_head *ctmp;
+ int i;
read_lock(&ksocknal_data.ksnd_global_lock);
ksocknal_choose_scheduler_locked(unsigned int cpt)
{
struct ksock_sched_info *info = ksocknal_data.ksnd_sched_info[cpt];
- ksock_sched_t *sched;
- int i;
+ ksock_sched_t *sched;
+ int i;
LASSERT(info->ksi_nthreads > 0);
static int
ksocknal_local_ipvec(lnet_ni_t *ni, __u32 *ipaddrs)
{
- ksock_net_t *net = ni->ni_data;
- int i;
- int nip;
+ ksock_net_t *net = ni->ni_data;
+ int i;
+ int nip;
read_lock(&ksocknal_data.ksnd_global_lock);
static int
ksocknal_match_peerip(ksock_interface_t *iface, __u32 *ips, int nips)
{
- int best_netmatch = 0;
- int best_xor = 0;
- int best = -1;
- int this_xor;
- int this_netmatch;
- int i;
+ int best_netmatch = 0;
+ int best_xor = 0;
+ int best = -1;
+ int this_xor;
+ int this_netmatch;
+ int i;
for (i = 0; i < nips; i++) {
if (ips[i] == 0)
static int
ksocknal_select_ips(ksock_peer_t *peer, __u32 *peerips, int n_peerips)
{
- rwlock_t *global_lock = &ksocknal_data.ksnd_global_lock;
- ksock_net_t *net = peer->ksnp_ni->ni_data;
- ksock_interface_t *iface;
- ksock_interface_t *best_iface;
- int n_ips;
- int i;
- int j;
- int k;
- __u32 ip;
- __u32 xor;
- int this_netmatch;
- int best_netmatch;
- int best_npeers;
+ rwlock_t *global_lock = &ksocknal_data.ksnd_global_lock;
+ ksock_net_t *net = peer->ksnp_ni->ni_data;
+ ksock_interface_t *iface;
+ ksock_interface_t *best_iface;
+ int n_ips;
+ int i;
+ int j;
+ int k;
+ __u32 ip;
+ __u32 xor;
+ int this_netmatch;
+ int best_netmatch;
+ int best_npeers;
/* CAVEAT EMPTOR: We do all our interface matching with an
* exclusive hold of global lock at IRQ priority. We're only
ksocknal_create_routes(ksock_peer_t *peer, int port,
__u32 *peer_ipaddrs, int npeer_ipaddrs)
{
- ksock_route_t *newroute = NULL;
- rwlock_t *global_lock = &ksocknal_data.ksnd_global_lock;
- lnet_ni_t *ni = peer->ksnp_ni;
- ksock_net_t *net = ni->ni_data;
- struct list_head *rtmp;
- ksock_route_t *route;
- ksock_interface_t *iface;
- ksock_interface_t *best_iface;
- int best_netmatch;
- int this_netmatch;
- int best_nroutes;
- int i;
- int j;
+ ksock_route_t *newroute = NULL;
+ rwlock_t *global_lock = &ksocknal_data.ksnd_global_lock;
+ lnet_ni_t *ni = peer->ksnp_ni;
+ ksock_net_t *net = ni->ni_data;
+ struct list_head *rtmp;
+ ksock_route_t *route;
+ ksock_interface_t *iface;
+ ksock_interface_t *best_iface;
+ int best_netmatch;
+ int this_netmatch;
+ int best_nroutes;
+ int i;
+ int j;
/* CAVEAT EMPTOR: We do all our interface matching with an
* exclusive hold of global lock at IRQ priority. We're only
int
ksocknal_accept(lnet_ni_t *ni, struct socket *sock)
{
- ksock_connreq_t *cr;
- int rc;
- __u32 peer_ip;
- int peer_port;
+ ksock_connreq_t *cr;
+ int rc;
+ __u32 peer_ip;
+ int peer_port;
rc = libcfs_sock_getaddr(sock, 1, &peer_ip, &peer_port);
LASSERT(rc == 0); /* we succeeded before */
static int
ksocknal_connecting(ksock_peer_t *peer, __u32 ipaddr)
{
- ksock_route_t *route;
+ ksock_route_t *route;
list_for_each_entry(route, &peer->ksnp_routes, ksnr_list) {
ksocknal_create_conn(lnet_ni_t *ni, ksock_route_t *route,
struct socket *sock, int type)
{
- rwlock_t *global_lock = &ksocknal_data.ksnd_global_lock;
+ rwlock_t *global_lock = &ksocknal_data.ksnd_global_lock;
LIST_HEAD(zombies);
- lnet_process_id_t peerid;
- struct list_head *tmp;
- __u64 incarnation;
- ksock_conn_t *conn;
- ksock_conn_t *conn2;
- ksock_peer_t *peer = NULL;
- ksock_peer_t *peer2;
- ksock_sched_t *sched;
+ lnet_process_id_t peerid;
+ struct list_head *tmp;
+ __u64 incarnation;
+ ksock_conn_t *conn;
+ ksock_conn_t *conn2;
+ ksock_peer_t *peer = NULL;
+ ksock_peer_t *peer2;
+ ksock_sched_t *sched;
ksock_hello_msg_t *hello;
- int cpt;
- ksock_tx_t *tx;
- ksock_tx_t *txtmp;
- int rc;
- int active;
- char *warn = NULL;
+ int cpt;
+ ksock_tx_t *tx;
+ ksock_tx_t *txtmp;
+ int rc;
+ int active;
+ char *warn = NULL;
active = (route != NULL);
/* This just does the immmediate housekeeping, and queues the
* connection for the reaper to terminate.
* Caller holds ksnd_global_lock exclusively in irq context */
- ksock_peer_t *peer = conn->ksnc_peer;
- ksock_route_t *route;
- ksock_conn_t *conn2;
- struct list_head *tmp;
+ ksock_peer_t *peer = conn->ksnc_peer;
+ ksock_route_t *route;
+ ksock_conn_t *conn2;
+ struct list_head *tmp;
LASSERT(peer->ksnp_error == 0);
LASSERT(!conn->ksnc_closing);
void
ksocknal_peer_failed(ksock_peer_t *peer)
{
- int notify = 0;
+ int notify = 0;
unsigned long last_alive = 0;
/* There has been a connection failure or comms error; but I'll only
void
ksocknal_finalize_zcreq(ksock_conn_t *conn)
{
- ksock_peer_t *peer = conn->ksnc_peer;
- ksock_tx_t *tx;
- ksock_tx_t *tmp;
+ ksock_peer_t *peer = conn->ksnc_peer;
+ ksock_tx_t *tx;
+ ksock_tx_t *tmp;
LIST_HEAD(zlist);
/* NB safe to finalize TXs because closing of socket will
* disengage the socket from its callbacks and close it.
* ksnc_refcount will eventually hit zero, and then the reaper will
* destroy it. */
- ksock_peer_t *peer = conn->ksnc_peer;
- ksock_sched_t *sched = conn->ksnc_scheduler;
- int failed = 0;
+ ksock_peer_t *peer = conn->ksnc_peer;
+ ksock_sched_t *sched = conn->ksnc_scheduler;
+ int failed = 0;
LASSERT(conn->ksnc_closing);
void
ksocknal_destroy_conn(ksock_conn_t *conn)
{
- unsigned long last_rcv;
+ unsigned long last_rcv;
/* Final coup-de-grace of the reaper */
CDEBUG(D_NET, "connection %p\n", conn);
int
ksocknal_close_peer_conns_locked(ksock_peer_t *peer, __u32 ipaddr, int why)
{
- ksock_conn_t *conn;
- struct list_head *ctmp;
- struct list_head *cnxt;
- int count = 0;
+ ksock_conn_t *conn;
+ struct list_head *ctmp;
+ struct list_head *cnxt;
+ int count = 0;
list_for_each_safe(ctmp, cnxt, &peer->ksnp_conns) {
conn = list_entry(ctmp, ksock_conn_t, ksnc_list);
int
ksocknal_close_conn_and_siblings(ksock_conn_t *conn, int why)
{
- ksock_peer_t *peer = conn->ksnc_peer;
- __u32 ipaddr = conn->ksnc_ipaddr;
- int count;
+ ksock_peer_t *peer = conn->ksnc_peer;
+ __u32 ipaddr = conn->ksnc_ipaddr;
+ int count;
write_lock_bh(&ksocknal_data.ksnd_global_lock);
int
ksocknal_close_matching_conns(lnet_process_id_t id, __u32 ipaddr)
{
- ksock_peer_t *peer;
- struct list_head *ptmp;
- struct list_head *pnxt;
- int lo;
- int hi;
- int i;
- int count = 0;
+ ksock_peer_t *peer;
+ struct list_head *ptmp;
+ struct list_head *pnxt;
+ int lo;
+ int hi;
+ int i;
+ int count = 0;
write_lock_bh(&ksocknal_data.ksnd_global_lock);
{
/* The router is telling me she's been notified of a change in
* gateway state.... */
- lnet_process_id_t id = {0};
+ lnet_process_id_t id = {0};
id.nid = gw_nid;
id.pid = LNET_PID_ANY;
void
ksocknal_query(lnet_ni_t *ni, lnet_nid_t nid, unsigned long *when)
{
- int connect = 1;
- unsigned long last_alive = 0;
- unsigned long now = cfs_time_current();
- ksock_peer_t *peer = NULL;
- rwlock_t *glock = &ksocknal_data.ksnd_global_lock;
- lnet_process_id_t id = {.nid = nid, .pid = LUSTRE_SRV_LNET_PID};
+ int connect = 1;
+ unsigned long last_alive = 0;
+ unsigned long now = cfs_time_current();
+ ksock_peer_t *peer = NULL;
+ rwlock_t *glock = &ksocknal_data.ksnd_global_lock;
+ lnet_process_id_t id = {.nid = nid, .pid = LUSTRE_SRV_LNET_PID};
read_lock(glock);
peer = ksocknal_find_peer_locked(ni, id);
if (peer != NULL) {
- struct list_head *tmp;
- ksock_conn_t *conn;
- int bufnob;
+ struct list_head *tmp;
+ ksock_conn_t *conn;
+ int bufnob;
list_for_each(tmp, &peer->ksnp_conns) {
conn = list_entry(tmp, ksock_conn_t, ksnc_list);
static void
ksocknal_push_peer(ksock_peer_t *peer)
{
- int index;
- int i;
- struct list_head *tmp;
- ksock_conn_t *conn;
+ int index;
+ int i;
+ struct list_head *tmp;
+ ksock_conn_t *conn;
for (index = 0; ; index++) {
read_lock(&ksocknal_data.ksnd_global_lock);
static int
ksocknal_push(lnet_ni_t *ni, lnet_process_id_t id)
{
- ksock_peer_t *peer;
- struct list_head *tmp;
- int index;
- int i;
- int j;
- int rc = -ENOENT;
+ ksock_peer_t *peer;
+ struct list_head *tmp;
+ int index;
+ int i;
+ int j;
+ int rc = -ENOENT;
for (i = 0; i < ksocknal_data.ksnd_peer_hash_size; i++) {
for (j = 0; ; j++) {
static int
ksocknal_add_interface(lnet_ni_t *ni, __u32 ipaddress, __u32 netmask)
{
- ksock_net_t *net = ni->ni_data;
+ ksock_net_t *net = ni->ni_data;
ksock_interface_t *iface;
- int rc;
- int i;
- int j;
- struct list_head *ptmp;
- ksock_peer_t *peer;
- struct list_head *rtmp;
- ksock_route_t *route;
+ int rc;
+ int i;
+ int j;
+ struct list_head *ptmp;
+ ksock_peer_t *peer;
+ struct list_head *rtmp;
+ ksock_route_t *route;
if (ipaddress == 0 ||
netmask == 0)
static void
ksocknal_peer_del_interface_locked(ksock_peer_t *peer, __u32 ipaddr)
{
- struct list_head *tmp;
- struct list_head *nxt;
- ksock_route_t *route;
- ksock_conn_t *conn;
- int i;
- int j;
+ struct list_head *tmp;
+ struct list_head *nxt;
+ ksock_route_t *route;
+ ksock_conn_t *conn;
+ int i;
+ int j;
for (i = 0; i < peer->ksnp_n_passive_ips; i++)
if (peer->ksnp_passive_ips[i] == ipaddr) {
static int
ksocknal_del_interface(lnet_ni_t *ni, __u32 ipaddress)
{
- ksock_net_t *net = ni->ni_data;
- int rc = -ENOENT;
- struct list_head *tmp;
- struct list_head *nxt;
- ksock_peer_t *peer;
- __u32 this_ip;
- int i;
- int j;
+ ksock_net_t *net = ni->ni_data;
+ int rc = -ENOENT;
+ struct list_head *tmp;
+ struct list_head *nxt;
+ ksock_peer_t *peer;
+ __u32 this_ip;
+ int i;
+ int j;
write_lock_bh(&ksocknal_data.ksnd_global_lock);
data->ioc_u32[0]); /* IP address */
case IOC_LIBCFS_GET_PEER: {
- __u32 myip = 0;
- __u32 ip = 0;
- int port = 0;
- int conn_count = 0;
- int share_count = 0;
+ __u32 myip = 0;
+ __u32 ip = 0;
+ int port = 0;
+ int conn_count = 0;
+ int share_count = 0;
rc = ksocknal_get_peer_info(ni, data->ioc_count,
&id, &myip, &ip, &port,
data->ioc_u32[0]); /* IP */
case IOC_LIBCFS_GET_CONN: {
- int txmem;
- int rxmem;
- int nagle;
+ int txmem;
+ int rxmem;
+ int nagle;
ksock_conn_t *conn = ksocknal_get_conn_by_idx(ni, data->ioc_count);
if (conn == NULL)
LASSERT(atomic_read(&ksocknal_data.ksnd_nactive_txs) == 0);
if (ksocknal_data.ksnd_sched_info != NULL) {
- struct ksock_sched_info *info;
- int i;
+ struct ksock_sched_info *info;
+ int i;
cfs_percpt_for_each(info, i, ksocknal_data.ksnd_sched_info) {
if (info->ksi_scheds != NULL) {
spin_lock(&ksocknal_data.ksnd_tx_lock);
if (!list_empty(&ksocknal_data.ksnd_idle_noop_txs)) {
- struct list_head zlist;
- ksock_tx_t *tx;
+ struct list_head zlist;
+ ksock_tx_t *tx;
list_add(&zlist, &ksocknal_data.ksnd_idle_noop_txs);
list_del_init(&ksocknal_data.ksnd_idle_noop_txs);
ksocknal_base_shutdown(void)
{
struct ksock_sched_info *info;
- ksock_sched_t *sched;
- int i;
- int j;
+ ksock_sched_t *sched;
+ int i;
+ int j;
CDEBUG(D_MALLOC, "before NAL cleanup: kmem %d\n",
atomic_read(&libcfs_kmemory));
ksocknal_base_startup(void)
{
struct ksock_sched_info *info;
- int rc;
- int i;
+ int rc;
+ int i;
LASSERT(ksocknal_data.ksnd_init == SOCKNAL_INIT_NOTHING);
LASSERT(ksocknal_data.ksnd_nnets == 0);
goto failed;
cfs_percpt_for_each(info, i, ksocknal_data.ksnd_sched_info) {
- ksock_sched_t *sched;
- int nthrs;
+ ksock_sched_t *sched;
+ int nthrs;
nthrs = cfs_cpt_weight(lnet_cpt_table(), i);
if (*ksocknal_tunables.ksnd_nscheds > 0) {
}
}
- ksocknal_data.ksnd_connd_starting = 0;
- ksocknal_data.ksnd_connd_failed_stamp = 0;
- ksocknal_data.ksnd_connd_starting_stamp = get_seconds();
+ ksocknal_data.ksnd_connd_starting = 0;
+ ksocknal_data.ksnd_connd_failed_stamp = 0;
+ ksocknal_data.ksnd_connd_starting_stamp = get_seconds();
/* must have at least 2 connds to remain responsive to accepts while
* connecting */
if (*ksocknal_tunables.ksnd_nconnds < SOCKNAL_CONND_RESV + 1)
static void
ksocknal_debug_peerhash(lnet_ni_t *ni)
{
- ksock_peer_t *peer = NULL;
- struct list_head *tmp;
- int i;
+ ksock_peer_t *peer = NULL;
+ struct list_head *tmp;
+ int i;
read_lock(&ksocknal_data.ksnd_global_lock);
void
ksocknal_shutdown(lnet_ni_t *ni)
{
- ksock_net_t *net = ni->ni_data;
- int i;
+ ksock_net_t *net = ni->ni_data;
+ int i;
lnet_process_id_t anyid = {0};
- anyid.nid = LNET_NID_ANY;
- anyid.pid = LNET_PID_ANY;
+ anyid.nid = LNET_NID_ANY;
+ anyid.pid = LNET_PID_ANY;
LASSERT(ksocknal_data.ksnd_init == SOCKNAL_INIT_ALL);
LASSERT(ksocknal_data.ksnd_nnets > 0);
static int
ksocknal_enumerate_interfaces(ksock_net_t *net)
{
- char **names;
- int i;
- int j;
- int rc;
- int n;
+ char **names;
+ int i;
+ int j;
+ int rc;
+ int n;
n = libcfs_ipif_enumerate(&names);
if (n <= 0) {
}
for (i = j = 0; i < n; i++) {
- int up;
- __u32 ip;
- __u32 mask;
+ int up;
+ __u32 ip;
+ __u32 mask;
if (!strcmp(names[i], "lo")) /* skip the loopback IF */
continue;
static int
ksocknal_search_new_ipif(ksock_net_t *net)
{
- int new_ipif = 0;
- int i;
+ int new_ipif = 0;
+ int i;
for (i = 0; i < net->ksnn_ninterfaces; i++) {
- char *ifnam = &net->ksnn_interfaces[i].ksni_name[0];
- char *colon = strchr(ifnam, ':');
- int found = 0;
- ksock_net_t *tmp;
- int j;
+ char *ifnam = &net->ksnn_interfaces[i].ksni_name[0];
+ char *colon = strchr(ifnam, ':');
+ int found = 0;
+ ksock_net_t *tmp;
+ int j;
if (colon != NULL) /* ignore alias device */
*colon = 0;
static int
ksocknal_start_schedulers(struct ksock_sched_info *info)
{
- int nthrs;
- int rc = 0;
- int i;
+ int nthrs;
+ int rc = 0;
+ int i;
if (info->ksi_nthreads == 0) {
if (*ksocknal_tunables.ksnd_nscheds > 0) {
}
for (i = 0; i < nthrs; i++) {
- long id;
- char name[20];
- ksock_sched_t *sched;
+ long id;
+ char name[20];
+ ksock_sched_t *sched;
id = KSOCK_THREAD_ID(info->ksi_cpt, info->ksi_nthreads + i);
sched = &info->ksi_scheds[KSOCK_THREAD_SID(id)];
snprintf(name, sizeof(name), "socknal_sd%02d_%02d",
static int
ksocknal_net_start_threads(ksock_net_t *net, __u32 *cpts, int ncpts)
{
- int newif = ksocknal_search_new_ipif(net);
- int rc;
- int i;
+ int newif = ksocknal_search_new_ipif(net);
+ int rc;
+ int i;
LASSERT(ncpts > 0 && ncpts <= cfs_cpt_number(lnet_cpt_table()));
for (i = 0; i < ncpts; i++) {
- struct ksock_sched_info *info;
+ struct ksock_sched_info *info;
int cpt = (cpts == NULL) ? i : cpts[i];
LASSERT(cpt < cfs_cpt_number(lnet_cpt_table()));
int
ksocknal_startup(lnet_ni_t *ni)
{
- ksock_net_t *net;
- int rc;
- int i;
+ ksock_net_t *net;
+ int rc;
+ int i;
LASSERT(ni->ni_lnd == &the_ksocklnd);
net->ksnn_ninterfaces = 1;
} else {
for (i = 0; i < LNET_MAX_INTERFACES; i++) {
- int up;
+ int up;
if (ni->ni_interfaces[i] == NULL)
break;
static int __init
ksocknal_module_init(void)
{
- int rc;
+ int rc;
/* check ksnr_connected/connecting field large enough */
CLASSERT(SOCKLND_CONN_NTYPES <= 4);
#include "../../../include/linux/lnet/socklnd.h"
#include "../../../include/linux/lnet/lnet-sysctl.h"
-#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 */
-#define SOCKNAL_ENOMEM_RETRY CFS_TICK /* jiffies between retries */
+#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 */
+#define SOCKNAL_ENOMEM_RETRY CFS_TICK /* jiffies between retries */
-#define SOCKNAL_SINGLE_FRAG_TX 0 /* disable multi-fragment sends */
-#define SOCKNAL_SINGLE_FRAG_RX 0 /* disable multi-fragment receives */
+#define SOCKNAL_SINGLE_FRAG_TX 0 /* disable multi-fragment sends */
+#define SOCKNAL_SINGLE_FRAG_RX 0 /* disable multi-fragment receives */
-#define SOCKNAL_VERSION_DEBUG 0 /* enable protocol version debugging */
+#define SOCKNAL_VERSION_DEBUG 0 /* enable protocol version debugging */
/* risk kmap deadlock on multi-frag I/O (backs off to single-frag if disabled).
* no risk if we're not running on a CONFIG_HIGHMEM platform. */
typedef struct /* per scheduler state */
{
- spinlock_t kss_lock; /* serialise */
- struct list_head kss_rx_conns; /* conn waiting to be read */
- /* conn waiting to be written */
- struct list_head kss_tx_conns;
- /* zombie noop tx list */
- struct list_head kss_zombie_noop_txs;
- wait_queue_head_t kss_waitq; /* where scheduler sleeps */
- /* # connections assigned to this scheduler */
- int kss_nconns;
- struct ksock_sched_info *kss_info; /* owner of it */
- struct page *kss_rx_scratch_pgs[LNET_MAX_IOV];
- struct kvec kss_scratch_iov[LNET_MAX_IOV];
+ spinlock_t kss_lock; /* serialise */
+ struct list_head kss_rx_conns; /* conn waiting to be read */
+ struct list_head kss_tx_conns; /* conn waiting to be written */
+ struct list_head kss_zombie_noop_txs; /* zombie noop tx list */
+ wait_queue_head_t kss_waitq; /* where scheduler sleeps */
+ int kss_nconns; /* # connections assigned to
+ * this scheduler */
+ struct ksock_sched_info *kss_info; /* owner of it */
+ struct page *kss_rx_scratch_pgs[LNET_MAX_IOV];
+ struct kvec kss_scratch_iov[LNET_MAX_IOV];
} ksock_sched_t;
struct ksock_sched_info {
- int ksi_nthreads_max; /* max allowed threads */
- int ksi_nthreads; /* number of threads */
- int ksi_cpt; /* CPT id */
- ksock_sched_t *ksi_scheds; /* array of schedulers */
+ int ksi_nthreads_max; /* max allowed threads */
+ int ksi_nthreads; /* number of threads */
+ int ksi_cpt; /* CPT id */
+ ksock_sched_t *ksi_scheds; /* array of schedulers */
};
-#define KSOCK_CPT_SHIFT 16
-#define KSOCK_THREAD_ID(cpt, sid) (((cpt) << KSOCK_CPT_SHIFT) | (sid))
-#define KSOCK_THREAD_CPT(id) ((id) >> KSOCK_CPT_SHIFT)
-#define KSOCK_THREAD_SID(id) ((id) & ((1UL << KSOCK_CPT_SHIFT) - 1))
+#define KSOCK_CPT_SHIFT 16
+#define KSOCK_THREAD_ID(cpt, sid) (((cpt) << KSOCK_CPT_SHIFT) | (sid))
+#define KSOCK_THREAD_CPT(id) ((id) >> KSOCK_CPT_SHIFT)
+#define KSOCK_THREAD_SID(id) ((id) & ((1UL << KSOCK_CPT_SHIFT) - 1))
-typedef struct /* in-use interface */
+typedef struct /* in-use interface */
{
__u32 ksni_ipaddr; /* interface's IP address */
__u32 ksni_netmask; /* interface's network mask */
} ksock_interface_t;
typedef struct {
- /* "stuck" socket timeout (seconds) */
- int *ksnd_timeout;
- /* # scheduler threads in each pool while starting */
- int *ksnd_nscheds;
- int *ksnd_nconnds; /* # connection daemons */
- int *ksnd_nconnds_max; /* max # connection daemons */
- int *ksnd_min_reconnectms; /* first connection retry after (ms)... */
- int *ksnd_max_reconnectms; /* ...exponentially increasing to this */
- 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_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_credits; /* # concurrent sends */
- int *ksnd_peertxcredits; /* # concurrent sends to 1 peer */
- int *ksnd_peerrtrcredits; /* # per-peer router buffer credits */
- int *ksnd_peertimeout; /* seconds to consider peer dead */
- int *ksnd_enable_csum; /* enable check sum */
- int *ksnd_inject_csum_error; /* set non-zero to inject checksum error */
- int *ksnd_nonblk_zcack; /* always send zc-ack on non-blocking connection */
- 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 */
+ int *ksnd_timeout; /* "stuck" socket timeout
+ * (seconds) */
+ int *ksnd_nscheds; /* # scheduler threads in each
+ * pool while starting */
+ int *ksnd_nconnds; /* # connection daemons */
+ int *ksnd_nconnds_max; /* max # connection daemons */
+ int *ksnd_min_reconnectms; /* first connection retry after
+ * (ms)... */
+ int *ksnd_max_reconnectms; /* ...exponentially increasing to
+ * this */
+ 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_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_credits; /* # concurrent sends */
+ int *ksnd_peertxcredits; /* # concurrent sends to 1 peer
+ */
+ int *ksnd_peerrtrcredits; /* # per-peer router buffer
+ * credits */
+ int *ksnd_peertimeout; /* seconds to consider peer dead
+ */
+ int *ksnd_enable_csum; /* enable check sum */
+ int *ksnd_inject_csum_error; /* set non-zero to inject
+ * checksum error */
+ int *ksnd_nonblk_zcack; /* always send zc-ack on
+ * non-blocking connection */
+ 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 */
} ksock_tunables_t;
typedef struct {
#define SOCKNAL_CONND_RESV 1
typedef struct {
- int ksnd_init; /* initialisation state */
- int ksnd_nnets; /* # networks set up */
- struct list_head ksnd_nets; /* list of nets */
- /* stabilize peer/conn ops */
- rwlock_t ksnd_global_lock;
- /* hash table of all my known peers */
- struct list_head *ksnd_peers;
- int ksnd_peer_hash_size; /* size of ksnd_peers */
-
- int ksnd_nthreads; /* # live threads */
- int ksnd_shuttingdown; /* tell threads to exit */
- /* schedulers information */
- struct ksock_sched_info **ksnd_sched_info;
-
- atomic_t ksnd_nactive_txs; /* #active txs */
-
- struct list_head ksnd_deathrow_conns; /* conns to close: reaper_lock*/
- struct list_head ksnd_zombie_conns; /* conns to free: reaper_lock */
- struct list_head ksnd_enomem_conns; /* conns to retry: reaper_lock*/
- wait_queue_head_t ksnd_reaper_waitq; /* reaper sleeps here */
- unsigned long ksnd_reaper_waketime;/* when reaper will wake */
- spinlock_t ksnd_reaper_lock; /* serialise */
-
- int ksnd_enomem_tx; /* test ENOMEM sender */
- int ksnd_stall_tx; /* test sluggish sender */
- int ksnd_stall_rx; /* test sluggish receiver */
-
- struct list_head ksnd_connd_connreqs; /* incoming connection requests */
- struct list_head ksnd_connd_routes; /* routes waiting to be connected */
- wait_queue_head_t ksnd_connd_waitq; /* connds sleep here */
- int ksnd_connd_connecting;/* # connds connecting */
- /** time stamp of the last failed connecting attempt */
- long ksnd_connd_failed_stamp;
- /** # starting connd */
- unsigned ksnd_connd_starting;
- /** time stamp of the last starting connd */
- long ksnd_connd_starting_stamp;
- /** # running connd */
- unsigned ksnd_connd_running;
- spinlock_t ksnd_connd_lock; /* serialise */
-
- struct list_head ksnd_idle_noop_txs; /* list head for freed noop tx */
- spinlock_t ksnd_tx_lock; /* serialise, g_lock unsafe */
+ int ksnd_init; /* initialisation state
+ */
+ int ksnd_nnets; /* # networks set up */
+ struct list_head ksnd_nets; /* list of nets */
+ 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 */
+
+ int ksnd_nthreads; /* # live threads */
+ int ksnd_shuttingdown; /* tell threads to exit
+ */
+ struct ksock_sched_info **ksnd_sched_info; /* schedulers info */
+
+ atomic_t ksnd_nactive_txs; /* #active txs */
+
+ struct list_head ksnd_deathrow_conns; /* conns to close:
+ * reaper_lock*/
+ struct list_head ksnd_zombie_conns; /* conns to free:
+ * reaper_lock */
+ struct list_head ksnd_enomem_conns; /* conns to retry:
+ * reaper_lock*/
+ wait_queue_head_t ksnd_reaper_waitq; /* reaper sleeps here */
+ unsigned long ksnd_reaper_waketime; /* when reaper will wake
+ */
+ spinlock_t ksnd_reaper_lock; /* serialise */
+
+ int ksnd_enomem_tx; /* test ENOMEM sender */
+ int ksnd_stall_tx; /* test sluggish sender
+ */
+ int ksnd_stall_rx; /* test sluggish
+ * receiver */
+
+ struct list_head ksnd_connd_connreqs; /* incoming connection
+ * requests */
+ struct list_head ksnd_connd_routes; /* routes waiting to be
+ * connected */
+ wait_queue_head_t ksnd_connd_waitq; /* connds sleep here */
+ int ksnd_connd_connecting; /* # connds connecting
+ */
+ long ksnd_connd_failed_stamp;/* time stamp of the
+ * last failed
+ * connecting attempt */
+ unsigned ksnd_connd_starting; /* # starting connd */
+ long ksnd_connd_starting_stamp;/* time stamp of the
+ * last starting connd
+ */
+ unsigned ksnd_connd_running; /* # running connd */
+ spinlock_t ksnd_connd_lock; /* serialise */
+
+ struct list_head ksnd_idle_noop_txs; /* list head for freed
+ * noop tx */
+ spinlock_t ksnd_tx_lock; /* serialise, g_lock
+ * unsafe */
} ksock_nal_data_t;
-#define SOCKNAL_INIT_NOTHING 0
-#define SOCKNAL_INIT_DATA 1
-#define SOCKNAL_INIT_ALL 2
+#define SOCKNAL_INIT_NOTHING 0
+#define SOCKNAL_INIT_DATA 1
+#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),
* received into either struct iovec or lnet_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 */
-struct ksock_route; /* forward ref */
-struct ksock_proto; /* forward ref */
+struct ksock_conn; /* forward ref */
+struct ksock_peer; /* forward ref */
+struct ksock_route; /* forward ref */
+struct ksock_proto; /* forward ref */
-typedef struct /* transmit packet */
+typedef struct /* transmit packet */
{
- struct list_head tx_list; /* queue on conn for transmission etc */
- struct list_head tx_zc_list; /* queue on peer for ZC request */
- atomic_t tx_refcount; /* tx reference count */
- int tx_nob; /* # packet bytes */
- int tx_resid; /* residual bytes */
- int tx_niov; /* # packet iovec frags */
- struct kvec *tx_iov; /* packet iovec 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 */
- unsigned short tx_zc_checked:1; /* Have I checked if I should ZC? */
- unsigned short 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() */
- unsigned long tx_deadline; /* when (in jiffies) tx times out */
- ksock_msg_t tx_msg; /* socklnd message buffer */
- int tx_desc_size; /* size of this descriptor */
+ struct list_head tx_list; /* queue on conn for transmission etc
+ */
+ struct list_head tx_zc_list; /* queue on peer for ZC request */
+ atomic_t tx_refcount; /* tx reference count */
+ int tx_nob; /* # packet bytes */
+ int tx_resid; /* residual bytes */
+ int tx_niov; /* # packet iovec frags */
+ struct kvec *tx_iov; /* packet iovec 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 */
+ unsigned short tx_zc_checked:1; /* Have I checked if I should ZC? */
+ unsigned short 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()
+ */
+ unsigned long tx_deadline; /* when (in jiffies) tx times out */
+ ksock_msg_t tx_msg; /* socklnd message buffer */
+ int tx_desc_size; /* size of this descriptor */
union {
struct {
- struct kvec iov; /* virt hdr */
- lnet_kiov_t kiov[0]; /* paged payload */
- } paged;
+ struct kvec iov; /* virt hdr */
+ lnet_kiov_t kiov[0]; /* paged payload */
+ } paged;
struct {
- struct kvec iov[1]; /* virt hdr + payload */
- } virt;
- } tx_frags;
+ struct kvec iov[1]; /* virt hdr + payload */
+ } virt;
+ } tx_frags;
} ksock_tx_t;
-#define KSOCK_NOOP_TX_SIZE ((int)offsetof(ksock_tx_t, tx_frags.paged.kiov[0]))
+#define KSOCK_NOOP_TX_SIZE ((int)offsetof(ksock_tx_t, tx_frags.paged.kiov[0]))
/* network zero copy callback descriptor embedded in ksock_tx_t */
lnet_kiov_t kiov[LNET_MAX_IOV];
} ksock_rxiovspace_t;
-#define SOCKNAL_RX_KSM_HEADER 1 /* reading ksock message header */
-#define SOCKNAL_RX_LNET_HEADER 2 /* reading lnet message header */
-#define SOCKNAL_RX_PARSE 3 /* Calling lnet_parse() */
-#define SOCKNAL_RX_PARSE_WAIT 4 /* waiting to be told to read the body */
-#define SOCKNAL_RX_LNET_PAYLOAD 5 /* reading lnet payload (to deliver here) */
-#define SOCKNAL_RX_SLOP 6 /* skipping body */
+#define SOCKNAL_RX_KSM_HEADER 1 /* reading ksock message header */
+#define SOCKNAL_RX_LNET_HEADER 2 /* reading lnet message header */
+#define SOCKNAL_RX_PARSE 3 /* Calling lnet_parse() */
+#define SOCKNAL_RX_PARSE_WAIT 4 /* waiting to be told to read the body */
+#define SOCKNAL_RX_LNET_PAYLOAD 5 /* reading lnet payload (to deliver here) */
+#define SOCKNAL_RX_SLOP 6 /* skipping body */
typedef struct ksock_conn {
- 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 */
- 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 */
- atomic_t ksnc_sock_refcount; /* sock refcount */
- 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 */
- signed int ksnc_type:3; /* type of connection,
- * should be signed value */
- unsigned int ksnc_closing:1; /* being shut down */
- unsigned int ksnc_flip:1; /* flip or not, only for V2.x */
- unsigned int ksnc_zc_capable:1; /* enable to ZC */
- struct ksock_proto *ksnc_proto; /* protocol for the connection */
+ 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 */
+ 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 */
+ atomic_t ksnc_sock_refcount;/* sock refcount */
+ 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 */
+ signed int ksnc_type:3; /* type of connection, should be
+ * signed value */
+ unsigned int ksnc_closing:1; /* being shut down */
+ unsigned int ksnc_flip:1; /* flip or not, only for V2.x */
+ unsigned int ksnc_zc_capable:1; /* enable to ZC */
+ struct ksock_proto *ksnc_proto; /* protocol for the connection */
/* reader */
- struct list_head ksnc_rx_list; /* where I enq waiting input or a forwarding descriptor */
- unsigned long ksnc_rx_deadline; /* when (in jiffies) receive times out */
- __u8 ksnc_rx_started; /* started receiving a message */
- __u8 ksnc_rx_ready; /* data ready to read */
- __u8 ksnc_rx_scheduled;/* being progressed */
- __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 kvec *ksnc_rx_iov; /* the iovec 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:
- * V2.x message takes the
- * whole struct
- * V1.x message is a bare
- * lnet_hdr_t, it's stored in
- * ksnc_msg.ksm_u.lnetmsg */
+ struct list_head ksnc_rx_list; /* where I enq waiting input or a
+ * forwarding descriptor */
+ unsigned long ksnc_rx_deadline; /* when (in jiffies) receive times
+ * out */
+ __u8 ksnc_rx_started; /* started receiving a message */
+ __u8 ksnc_rx_ready; /* data ready to read */
+ __u8 ksnc_rx_scheduled; /* being progressed */
+ __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 kvec *ksnc_rx_iov; /* the iovec 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:
+ * V2.x message takes the
+ * whole struct
+ * V1.x message is a bare
+ * lnet_hdr_t, it's stored in
+ * ksnc_msg.ksm_u.lnetmsg */
/* 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_carrier; /* next TX that can carry a LNet message or ZC-ACK */
- 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 */
- unsigned long ksnc_tx_last_post; /* time stamp of the last posted TX */
+ 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_carrier; /* next TX that can carry a LNet
+ * message or ZC-ACK */
+ 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 */
+ unsigned long ksnc_tx_last_post; /* time stamp of the last posted
+ * TX */
} ksock_conn_t;
typedef struct ksock_route {
- struct list_head ksnr_list; /* chain on peer route list */
- struct list_head ksnr_connd_list; /* chain on ksnr_connd_routes */
- struct ksock_peer *ksnr_peer; /* owning peer */
- atomic_t ksnr_refcount; /* # users */
- unsigned long ksnr_timeout; /* when (in jiffies) reconnection can happen next */
- long ksnr_retry_interval; /* how long between retries */
- __u32 ksnr_myipaddr; /* my IP */
- __u32 ksnr_ipaddr; /* IP address to connect to */
- int ksnr_port; /* port to connect to */
- unsigned int ksnr_scheduled:1; /* scheduled for attention */
- unsigned int ksnr_connecting:1;/* connection establishment in progress */
- 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 */
+ struct list_head ksnr_list; /* chain on peer route list */
+ struct list_head ksnr_connd_list; /* chain on ksnr_connd_routes */
+ struct ksock_peer *ksnr_peer; /* owning peer */
+ atomic_t ksnr_refcount; /* # users */
+ unsigned long ksnr_timeout; /* when (in jiffies) reconnection
+ * can happen next */
+ long ksnr_retry_interval; /* how long between retries */
+ __u32 ksnr_myipaddr; /* my IP */
+ __u32 ksnr_ipaddr; /* IP address to connect to */
+ int ksnr_port; /* port to connect to */
+ unsigned int ksnr_scheduled:1; /* scheduled for attention */
+ unsigned int ksnr_connecting:1; /* connection establishment in
+ * progress */
+ 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;
-#define SOCKNAL_KEEPALIVE_PING 1 /* cookie for keepalive ping */
+#define SOCKNAL_KEEPALIVE_PING 1 /* cookie for keepalive ping */
typedef struct ksock_peer {
- struct list_head ksnp_list; /* stash on global peer list */
- unsigned long ksnp_last_alive; /* when (in jiffies) I was last alive */
- lnet_process_id_t ksnp_id; /* 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_accepting;/* # passive connections pending */
- int ksnp_error; /* errno on closing last conn */
- __u64 ksnp_zc_next_cookie;/* ZC completion cookie */
- __u64 ksnp_incarnation; /* latest known peer incarnation */
- struct ksock_proto *ksnp_proto; /* latest known peer protocol */
- struct list_head ksnp_conns; /* all active connections */
- struct list_head ksnp_routes; /* routes */
- struct list_head ksnp_tx_queue; /* waiting packets */
- spinlock_t ksnp_lock; /* serialize, g_lock unsafe */
- struct list_head ksnp_zc_req_list; /* zero copy requests wait for ACK */
- unsigned long 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 */
+ struct list_head ksnp_list; /* stash on global peer list */
+ unsigned long ksnp_last_alive; /* when (in jiffies) I was last
+ * alive */
+ lnet_process_id_t ksnp_id; /* 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_accepting; /* # passive connections pending
+ */
+ int ksnp_error; /* errno on closing last conn */
+ __u64 ksnp_zc_next_cookie; /* ZC completion cookie */
+ __u64 ksnp_incarnation; /* latest known peer incarnation
+ */
+ struct ksock_proto *ksnp_proto; /* latest known peer protocol */
+ struct list_head ksnp_conns; /* all active connections */
+ struct list_head ksnp_routes; /* routes */
+ struct list_head ksnp_tx_queue; /* waiting packets */
+ spinlock_t ksnp_lock; /* serialize, g_lock unsafe */
+ struct list_head ksnp_zc_req_list; /* zero copy requests wait for
+ * ACK */
+ unsigned long ksnp_send_keepalive; /* time to send keepalive */
+ lnet_ni_t *ksnp_ni; /* which network */
+ int ksnp_n_passive_ips; /* # of... */
+
+ /* preferred local interfaces */
+ __u32 ksnp_passive_ips[LNET_MAX_INTERFACES];
} ksock_peer_t;
typedef struct ksock_connreq {
- struct list_head ksncr_list; /* stash on ksnd_connd_connreqs */
- lnet_ni_t *ksncr_ni; /* chosen NI */
- struct socket *ksncr_sock; /* accepted socket */
+ struct list_head ksncr_list; /* stash on ksnd_connd_connreqs */
+ lnet_ni_t *ksncr_ni; /* chosen NI */
+ struct socket *ksncr_sock; /* accepted socket */
} ksock_connreq_t;
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 */
+#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 */
- 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 */
+ /* version number of protocol */
+ int pro_version;
+
+ /* handshake function */
+ 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);
+
+ /* message pack */
+ void (*pro_pack)(ksock_tx_t *);
+
+ /* message unpack */
+ void (*pro_unpack)(ksock_msg_t *);
+
+ /* queue tx on the connection */
+ ksock_tx_t *(*pro_queue_tx_msg)(ksock_conn_t *, ksock_tx_t *);
+
+ /* queue ZC ack on the connection */
+ int (*pro_queue_tx_zcack)(ksock_conn_t *, ksock_tx_t *, __u64);
+
+ /* handle ZC request */
+ int (*pro_handle_zcreq)(ksock_conn_t *, __u64, int);
+
+ /* handle ZC ACK */
+ int (*pro_handle_zcack)(ksock_conn_t *, __u64, __u64);
+
+ /* msg type matches the connection type:
+ * return value:
+ * return MATCH_NO : no
+ * return MATCH_YES : matching type
+ * return MATCH_MAY : can be backup */
+ int (*pro_match_tx)(ksock_conn_t *, ksock_tx_t *, int);
} 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
-#define KSOCK_PROTO_V1 KSOCK_PROTO_V1_MAJOR
+#define KSOCK_PROTO_V1_MAJOR LNET_PROTO_TCP_VERSION_MAJOR
+#define KSOCK_PROTO_V1_MINOR LNET_PROTO_TCP_VERSION_MINOR
+#define KSOCK_PROTO_V1 KSOCK_PROTO_V1_MAJOR
#ifndef CPU_MASK_NONE
#define CPU_MASK_NONE 0UL
static inline int
ksocknal_connsock_addref(ksock_conn_t *conn)
{
- int rc = -ESHUTDOWN;
+ int rc = -ESHUTDOWN;
read_lock(&ksocknal_data.ksnd_global_lock);
if (!conn->ksnc_closing) {
return NULL;
}
- tx->tx_conn = NULL;
- tx->tx_lnetmsg = NULL;
- tx->tx_kiov = NULL;
- tx->tx_nkiov = 0;
- tx->tx_iov = tx->tx_frags.virt.iov;
- tx->tx_niov = 1;
- tx->tx_nonblk = nonblk;
+ tx->tx_conn = NULL;
+ tx->tx_lnetmsg = NULL;
+ tx->tx_kiov = NULL;
+ tx->tx_nkiov = 0;
+ tx->tx_iov = tx->tx_frags.virt.iov;
+ tx->tx_niov = 1;
+ tx->tx_nonblk = nonblk;
socklnd_init_msg(&tx->tx_msg, KSOCK_MSG_NOOP);
tx->tx_msg.ksm_zc_cookies[1] = cookie;
static int
ksocknal_send_iov (ksock_conn_t *conn, ksock_tx_t *tx)
{
- struct kvec *iov = tx->tx_iov;
- int nob;
- int rc;
+ struct kvec *iov = tx->tx_iov;
+ int nob;
+ int rc;
- LASSERT (tx->tx_niov > 0);
+ LASSERT(tx->tx_niov > 0);
/* Never touch tx->tx_iov inside ksocknal_lib_send_iov() */
rc = ksocknal_lib_send_iov(conn, tx);
/* "consume" iov */
do {
- LASSERT (tx->tx_niov > 0);
+ LASSERT(tx->tx_niov > 0);
if (nob < (int) iov->iov_len) {
iov->iov_base = (void *)((char *)iov->iov_base + nob);
static int
ksocknal_send_kiov (ksock_conn_t *conn, ksock_tx_t *tx)
{
- lnet_kiov_t *kiov = tx->tx_kiov;
- int nob;
- int rc;
+ lnet_kiov_t *kiov = tx->tx_kiov;
+ int nob;
+ int rc;
- LASSERT (tx->tx_niov == 0);
- LASSERT (tx->tx_nkiov > 0);
+ LASSERT(tx->tx_niov == 0);
+ LASSERT(tx->tx_nkiov > 0);
/* Never touch tx->tx_kiov inside ksocknal_lib_send_kiov() */
rc = ksocknal_lib_send_kiov(conn, tx);
static int
ksocknal_transmit (ksock_conn_t *conn, ksock_tx_t *tx)
{
- int rc;
- int bufnob;
+ int rc;
+ int bufnob;
if (ksocknal_data.ksnd_stall_tx != 0) {
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(cfs_time_seconds(ksocknal_data.ksnd_stall_tx));
}
- LASSERT (tx->tx_resid != 0);
+ LASSERT(tx->tx_resid != 0);
rc = ksocknal_connsock_addref(conn);
if (rc != 0) {
ksocknal_recv_iov (ksock_conn_t *conn)
{
struct kvec *iov = conn->ksnc_rx_iov;
- int nob;
- int rc;
+ int nob;
+ int rc;
- LASSERT (conn->ksnc_rx_niov > 0);
+ LASSERT(conn->ksnc_rx_niov > 0);
/* Never touch conn->ksnc_rx_iov or change connection
* status inside ksocknal_lib_recv_iov */
conn->ksnc_rx_nob_left -= nob;
do {
- LASSERT (conn->ksnc_rx_niov > 0);
+ LASSERT(conn->ksnc_rx_niov > 0);
if (nob < (int)iov->iov_len) {
iov->iov_len -= nob;
static int
ksocknal_recv_kiov (ksock_conn_t *conn)
{
- lnet_kiov_t *kiov = conn->ksnc_rx_kiov;
- int nob;
- int rc;
- LASSERT (conn->ksnc_rx_nkiov > 0);
+ lnet_kiov_t *kiov = conn->ksnc_rx_kiov;
+ int nob;
+ int rc;
+ LASSERT(conn->ksnc_rx_nkiov > 0);
/* Never touch conn->ksnc_rx_kiov or change connection
* status inside ksocknal_lib_recv_iov */
conn->ksnc_rx_nob_left -= nob;
do {
- LASSERT (conn->ksnc_rx_nkiov > 0);
+ LASSERT(conn->ksnc_rx_nkiov > 0);
if (nob < (int) kiov->kiov_len) {
kiov->kiov_offset += nob;
/* Return 1 on success, 0 on EOF, < 0 on error.
* Caller checks ksnc_rx_nob_wanted to determine
* progress/completion. */
- int rc;
+ int rc;
if (ksocknal_data.ksnd_stall_rx != 0) {
set_current_state(TASK_UNINTERRUPTIBLE);
void
ksocknal_tx_done (lnet_ni_t *ni, ksock_tx_t *tx)
{
- lnet_msg_t *lnetmsg = tx->tx_lnetmsg;
- int rc = (tx->tx_resid == 0 && !tx->tx_zc_aborted) ? 0 : -EIO;
+ lnet_msg_t *lnetmsg = tx->tx_lnetmsg;
+ int rc = (tx->tx_resid == 0 && !tx->tx_zc_aborted) ? 0 : -EIO;
LASSERT(ni != NULL || tx->tx_conn != NULL);
ksock_tx_t *tx;
while (!list_empty (txlist)) {
- tx = list_entry (txlist->next, ksock_tx_t, tx_list);
+ tx = list_entry(txlist->next, ksock_tx_t, tx_list);
if (error && tx->tx_lnetmsg != NULL) {
CNETERR("Deleting packet type %d len %d %s->%s\n",
CNETERR("Deleting noop packet\n");
}
- list_del (&tx->tx_list);
+ list_del(&tx->tx_list);
- LASSERT (atomic_read(&tx->tx_refcount) == 1);
- ksocknal_tx_done (ni, tx);
+ LASSERT(atomic_read(&tx->tx_refcount) == 1);
+ ksocknal_tx_done(ni, tx);
}
}
static void
ksocknal_check_zc_req(ksock_tx_t *tx)
{
- ksock_conn_t *conn = tx->tx_conn;
- ksock_peer_t *peer = conn->ksnc_peer;
+ ksock_conn_t *conn = tx->tx_conn;
+ ksock_peer_t *peer = conn->ksnc_peer;
/* Set tx_msg.ksm_zc_cookies[0] to a unique non-zero cookie and add tx
* to ksnp_zc_req_list if some fragment of this message should be sent
* she has received this message to tell us we can signal completion.
* tx_msg.ksm_zc_cookies[0] remains non-zero while tx is on
* ksnp_zc_req_list. */
- LASSERT (tx->tx_msg.ksm_type != KSOCK_MSG_NOOP);
- LASSERT (tx->tx_zc_capable);
+ LASSERT(tx->tx_msg.ksm_type != KSOCK_MSG_NOOP);
+ LASSERT(tx->tx_zc_capable);
tx->tx_zc_checked = 1;
tx->tx_deadline =
cfs_time_shift(*ksocknal_tunables.ksnd_timeout);
- LASSERT (tx->tx_msg.ksm_zc_cookies[0] == 0);
+ LASSERT(tx->tx_msg.ksm_zc_cookies[0] == 0);
tx->tx_msg.ksm_zc_cookies[0] = peer->ksnp_zc_next_cookie++;
static void
ksocknal_uncheck_zc_req(ksock_tx_t *tx)
{
- ksock_peer_t *peer = tx->tx_conn->ksnc_peer;
+ ksock_peer_t *peer = tx->tx_conn->ksnc_peer;
LASSERT(tx->tx_msg.ksm_type != KSOCK_MSG_NOOP);
LASSERT(tx->tx_zc_capable);
static int
ksocknal_process_transmit (ksock_conn_t *conn, ksock_tx_t *tx)
{
- int rc;
+ int rc;
if (tx->tx_zc_capable && !tx->tx_zc_checked)
ksocknal_check_zc_req(tx);
rc = ksocknal_transmit (conn, tx);
- CDEBUG (D_NET, "send(%d) %d\n", tx->tx_resid, rc);
+ CDEBUG(D_NET, "send(%d) %d\n", tx->tx_resid, rc);
if (tx->tx_resid == 0) {
/* Sent everything OK */
}
/* Actual error */
- LASSERT (rc < 0);
+ LASSERT(rc < 0);
if (!conn->ksnc_closing) {
switch (rc) {
/* called holding write lock on ksnd_global_lock */
- LASSERT (!route->ksnr_scheduled);
- LASSERT (!route->ksnr_connecting);
- LASSERT ((ksocknal_route_mask() & ~route->ksnr_connected) != 0);
+ LASSERT(!route->ksnr_scheduled);
+ LASSERT(!route->ksnr_connecting);
+ LASSERT((ksocknal_route_mask() & ~route->ksnr_connected) != 0);
route->ksnr_scheduled = 1; /* scheduling conn for connd */
ksocknal_route_addref(route); /* extra ref for connd */
ksock_conn_t *
ksocknal_find_conn_locked(ksock_peer_t *peer, ksock_tx_t *tx, int nonblk)
{
- struct list_head *tmp;
- ksock_conn_t *conn;
- ksock_conn_t *typed = NULL;
- ksock_conn_t *fallback = NULL;
- int tnob = 0;
- int fnob = 0;
+ struct list_head *tmp;
+ ksock_conn_t *conn;
+ ksock_conn_t *typed = NULL;
+ ksock_conn_t *fallback = NULL;
+ int tnob = 0;
+ int fnob = 0;
list_for_each (tmp, &peer->ksnp_conns) {
ksock_conn_t *c = list_entry(tmp, ksock_conn_t, ksnc_list);
- int nob = atomic_read(&c->ksnc_tx_nob) +
- c->ksnc_sock->sk->sk_wmem_queued;
- int rc;
+ int nob = atomic_read(&c->ksnc_tx_nob) +
+ c->ksnc_sock->sk->sk_wmem_queued;
+ int rc;
- LASSERT (!c->ksnc_closing);
- LASSERT (c->ksnc_proto != NULL &&
- c->ksnc_proto->pro_match_tx != NULL);
+ LASSERT(!c->ksnc_closing);
+ LASSERT(c->ksnc_proto != NULL &&
+ c->ksnc_proto->pro_match_tx != NULL);
rc = c->ksnc_proto->pro_match_tx(c, tx, nonblk);
(fnob == nob && *ksocknal_tunables.ksnd_round_robin &&
cfs_time_after(fallback->ksnc_tx_last_post, c->ksnc_tx_last_post))) {
fallback = c;
- fnob = nob;
+ fnob = nob;
}
break;
}
ksocknal_queue_tx_locked (ksock_tx_t *tx, ksock_conn_t *conn)
{
ksock_sched_t *sched = conn->ksnc_scheduler;
- ksock_msg_t *msg = &tx->tx_msg;
- ksock_tx_t *ztx = NULL;
- int bufnob = 0;
+ ksock_msg_t *msg = &tx->tx_msg;
+ ksock_tx_t *ztx = NULL;
+ int bufnob = 0;
/* called holding global lock (read or irq-write) and caller may
* not have dropped this lock between finding conn and calling me,
*
* We always expect at least 1 mapped fragment containing the
* complete ksocknal message header. */
- LASSERT (lnet_iov_nob (tx->tx_niov, tx->tx_iov) +
- lnet_kiov_nob(tx->tx_nkiov, tx->tx_kiov) ==
- (unsigned int)tx->tx_nob);
- LASSERT (tx->tx_niov >= 1);
- LASSERT (tx->tx_resid == tx->tx_nob);
+ LASSERT(lnet_iov_nob (tx->tx_niov, tx->tx_iov) +
+ lnet_kiov_nob(tx->tx_nkiov, tx->tx_kiov) ==
+ (unsigned int)tx->tx_nob);
+ LASSERT(tx->tx_niov >= 1);
+ LASSERT(tx->tx_resid == tx->tx_nob);
CDEBUG (D_NET, "Packet %p type %d, nob %d niov %d nkiov %d\n",
tx, (tx->tx_lnetmsg != NULL) ? tx->tx_lnetmsg->msg_hdr.type:
if (msg->ksm_type == KSOCK_MSG_NOOP) {
/* The packet is noop ZC ACK, try to piggyback the ack_cookie
* on a normal packet so I don't need to send it */
- LASSERT (msg->ksm_zc_cookies[1] != 0);
- LASSERT (conn->ksnc_proto->pro_queue_tx_zcack != NULL);
+ LASSERT(msg->ksm_zc_cookies[1] != 0);
+ LASSERT(conn->ksnc_proto->pro_queue_tx_zcack != NULL);
if (conn->ksnc_proto->pro_queue_tx_zcack(conn, tx, 0))
ztx = tx; /* ZC ACK piggybacked on ztx release tx later */
} else {
/* It's a normal packet - can it piggback a noop zc-ack that
* has been queued already? */
- LASSERT (msg->ksm_zc_cookies[1] == 0);
- LASSERT (conn->ksnc_proto->pro_queue_tx_msg != NULL);
+ LASSERT(msg->ksm_zc_cookies[1] == 0);
+ LASSERT(conn->ksnc_proto->pro_queue_tx_msg != NULL);
ztx = conn->ksnc_proto->pro_queue_tx_msg(conn, tx);
/* ztx will be released later */
ksock_route_t *
ksocknal_find_connectable_route_locked (ksock_peer_t *peer)
{
- unsigned long now = cfs_time_current();
- struct list_head *tmp;
+ unsigned long now = cfs_time_current();
+ struct list_head *tmp;
ksock_route_t *route;
list_for_each (tmp, &peer->ksnp_routes) {
route = list_entry (tmp, ksock_route_t, ksnr_list);
- LASSERT (!route->ksnr_connecting || route->ksnr_scheduled);
+ LASSERT(!route->ksnr_connecting || route->ksnr_scheduled);
if (route->ksnr_scheduled) /* connections being established */
continue;
ksock_route_t *
ksocknal_find_connecting_route_locked (ksock_peer_t *peer)
{
- struct list_head *tmp;
- ksock_route_t *route;
+ struct list_head *tmp;
+ ksock_route_t *route;
list_for_each (tmp, &peer->ksnp_routes) {
route = list_entry (tmp, ksock_route_t, ksnr_list);
- LASSERT (!route->ksnr_connecting || route->ksnr_scheduled);
+ LASSERT(!route->ksnr_connecting || route->ksnr_scheduled);
if (route->ksnr_scheduled)
return route;
int
ksocknal_launch_packet (lnet_ni_t *ni, ksock_tx_t *tx, lnet_process_id_t id)
{
- ksock_peer_t *peer;
- ksock_conn_t *conn;
- rwlock_t *g_lock;
- int retry;
- int rc;
+ ksock_peer_t *peer;
+ ksock_conn_t *conn;
+ rwlock_t *g_lock;
+ int retry;
+ int rc;
- LASSERT (tx->tx_conn == NULL);
+ LASSERT(tx->tx_conn == NULL);
g_lock = &ksocknal_data.ksnd_global_lock;
int
ksocknal_send(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg)
{
- int mpflag = 1;
- int type = lntmsg->msg_type;
+ int mpflag = 1;
+ int type = lntmsg->msg_type;
lnet_process_id_t target = lntmsg->msg_target;
- unsigned int payload_niov = lntmsg->msg_niov;
- struct kvec *payload_iov = lntmsg->msg_iov;
- lnet_kiov_t *payload_kiov = lntmsg->msg_kiov;
- unsigned int payload_offset = lntmsg->msg_offset;
- unsigned int payload_nob = lntmsg->msg_len;
- ksock_tx_t *tx;
- int desc_size;
- int rc;
+ unsigned int payload_niov = lntmsg->msg_niov;
+ struct kvec *payload_iov = lntmsg->msg_iov;
+ lnet_kiov_t *payload_kiov = lntmsg->msg_kiov;
+ unsigned int payload_offset = lntmsg->msg_offset;
+ unsigned int payload_nob = lntmsg->msg_len;
+ ksock_tx_t *tx;
+ int desc_size;
+ int rc;
/* NB 'private' is different depending on what we're sending.
* Just ignore it... */
CDEBUG(D_NET, "sending %u bytes in %d frags to %s\n",
payload_nob, payload_niov, libcfs_id2str(target));
- LASSERT (payload_nob == 0 || payload_niov > 0);
- LASSERT (payload_niov <= LNET_MAX_IOV);
+ LASSERT(payload_nob == 0 || payload_niov > 0);
+ LASSERT(payload_niov <= LNET_MAX_IOV);
/* payload is either all vaddrs or all pages */
LASSERT (!(payload_kiov != NULL && payload_iov != NULL));
LASSERT (!in_interrupt ());
{
static char ksocknal_slop_buffer[4096];
- int nob;
- unsigned int niov;
- int skipped;
+ int nob;
+ unsigned int niov;
+ int skipped;
LASSERT(conn->ksnc_proto != NULL);
conn->ksnc_rx_iov = (struct kvec *)&conn->ksnc_rx_iov_space;
conn->ksnc_rx_iov[0].iov_base = &conn->ksnc_msg.ksm_u.lnetmsg;
- conn->ksnc_rx_iov[0].iov_len = sizeof (lnet_hdr_t);
+ conn->ksnc_rx_iov[0].iov_len = sizeof (lnet_hdr_t);
break;
default:
static int
ksocknal_process_receive (ksock_conn_t *conn)
{
- lnet_hdr_t *lhdr;
+ lnet_hdr_t *lhdr;
lnet_process_id_t *id;
- int rc;
+ int rc;
LASSERT (atomic_read(&conn->ksnc_conn_refcount) > 0);
/* NB: sched lock NOT held */
/* SOCKNAL_RX_LNET_HEADER is here for backward compatibility */
- LASSERT (conn->ksnc_rx_state == SOCKNAL_RX_KSM_HEADER ||
- conn->ksnc_rx_state == SOCKNAL_RX_LNET_PAYLOAD ||
- conn->ksnc_rx_state == SOCKNAL_RX_LNET_HEADER ||
- conn->ksnc_rx_state == SOCKNAL_RX_SLOP);
+ LASSERT(conn->ksnc_rx_state == SOCKNAL_RX_KSM_HEADER ||
+ conn->ksnc_rx_state == SOCKNAL_RX_LNET_PAYLOAD ||
+ conn->ksnc_rx_state == SOCKNAL_RX_LNET_HEADER ||
+ conn->ksnc_rx_state == SOCKNAL_RX_SLOP);
again:
if (conn->ksnc_rx_nob_wanted != 0) {
rc = ksocknal_receive(conn);
if ((conn->ksnc_peer->ksnp_id.pid & LNET_PID_USERFLAG) != 0) {
/* Userspace peer */
lhdr = &conn->ksnc_msg.ksm_u.lnetmsg.ksnm_hdr;
- id = &conn->ksnc_peer->ksnp_id;
+ id = &conn->ksnc_peer->ksnp_id;
/* Substitute process ID assigned at connection time */
lhdr->src_pid = cpu_to_le32(id->pid);
LASSERT(conn->ksnc_proto != &ksocknal_protocol_v1x);
lhdr = &conn->ksnc_msg.ksm_u.lnetmsg.ksnm_hdr;
- id = &conn->ksnc_peer->ksnp_id;
+ id = &conn->ksnc_peer->ksnp_id;
rc = conn->ksnc_proto->pro_handle_zcreq(conn,
conn->ksnc_msg.ksm_zc_cookies[0],
}
/* Not Reached */
- LBUG ();
+ LBUG();
return -EINVAL; /* keep gcc happy */
}
unsigned int niov, struct kvec *iov, lnet_kiov_t *kiov,
unsigned int offset, unsigned int mlen, unsigned int rlen)
{
- ksock_conn_t *conn = (ksock_conn_t *)private;
+ ksock_conn_t *conn = (ksock_conn_t *)private;
ksock_sched_t *sched = conn->ksnc_scheduler;
- LASSERT (mlen <= rlen);
- LASSERT (niov <= LNET_MAX_IOV);
+ LASSERT(mlen <= rlen);
+ LASSERT(niov <= LNET_MAX_IOV);
conn->ksnc_cookie = msg;
conn->ksnc_rx_nob_wanted = mlen;
- conn->ksnc_rx_nob_left = rlen;
+ conn->ksnc_rx_nob_left = rlen;
if (mlen == 0 || iov != NULL) {
conn->ksnc_rx_nkiov = 0;
niov, iov, offset, mlen);
} else {
conn->ksnc_rx_niov = 0;
- conn->ksnc_rx_iov = NULL;
+ conn->ksnc_rx_iov = NULL;
conn->ksnc_rx_kiov = conn->ksnc_rx_iov_space.kiov;
conn->ksnc_rx_nkiov =
lnet_extract_kiov(LNET_MAX_IOV, conn->ksnc_rx_kiov,
niov, kiov, offset, mlen);
}
- LASSERT (mlen ==
- lnet_iov_nob (conn->ksnc_rx_niov, conn->ksnc_rx_iov) +
- lnet_kiov_nob (conn->ksnc_rx_nkiov, conn->ksnc_rx_kiov));
+ LASSERT(mlen ==
+ lnet_iov_nob(conn->ksnc_rx_niov, conn->ksnc_rx_iov) +
+ lnet_kiov_nob(conn->ksnc_rx_nkiov, conn->ksnc_rx_kiov));
- LASSERT (conn->ksnc_rx_scheduled);
+ LASSERT(conn->ksnc_rx_scheduled);
spin_lock_bh(&sched->kss_lock);
static inline int
ksocknal_sched_cansleep(ksock_sched_t *sched)
{
- int rc;
+ int rc;
spin_lock_bh(&sched->kss_lock);
int ksocknal_scheduler(void *arg)
{
- struct ksock_sched_info *info;
- ksock_sched_t *sched;
- ksock_conn_t *conn;
- ksock_tx_t *tx;
- int rc;
- int nloops = 0;
- long id = (long)arg;
+ struct ksock_sched_info *info;
+ ksock_sched_t *sched;
+ ksock_conn_t *conn;
+ ksock_tx_t *tx;
+ int rc;
+ int nloops = 0;
+ long id = (long)arg;
info = ksocknal_data.ksnd_sched_info[KSOCK_THREAD_CPT(id)];
sched = &info->ksi_scheds[KSOCK_THREAD_SID(id)];
}
if (!list_empty (&sched->kss_tx_conns)) {
- LIST_HEAD (zlist);
+ LIST_HEAD(zlist);
if (!list_empty(&sched->kss_zombie_noop_txs)) {
list_add(&zlist,
/* Do nothing; after a short timeout, this
* conn will be reposted on kss_tx_conns. */
} else if (conn->ksnc_tx_ready &&
- !list_empty (&conn->ksnc_tx_queue)) {
+ !list_empty(&conn->ksnc_tx_queue)) {
/* reschedule for tx */
- list_add_tail (&conn->ksnc_tx_list,
+ list_add_tail(&conn->ksnc_tx_list,
&sched->kss_tx_conns);
} else {
conn->ksnc_tx_scheduled = 0;
static ksock_proto_t *
ksocknal_parse_proto_version (ksock_hello_msg_t *hello)
{
- __u32 version = 0;
+ __u32 version = 0;
if (hello->kshm_magic == LNET_PROTO_MAGIC)
version = hello->kshm_version;
if (hello->kshm_magic == le32_to_cpu(LNET_PROTO_TCP_MAGIC)) {
lnet_magicversion_t *hmv = (lnet_magicversion_t *)hello;
- CLASSERT (sizeof (lnet_magicversion_t) ==
- offsetof (ksock_hello_msg_t, kshm_src_nid));
+ CLASSERT(sizeof (lnet_magicversion_t) ==
+ offsetof (ksock_hello_msg_t, kshm_src_nid));
if (hmv->version_major == cpu_to_le16 (KSOCK_PROTO_V1_MAJOR) &&
hmv->version_minor == cpu_to_le16 (KSOCK_PROTO_V1_MINOR))
lnet_nid_t peer_nid, ksock_hello_msg_t *hello)
{
/* CAVEAT EMPTOR: this byte flips 'ipaddrs' */
- ksock_net_t *net = (ksock_net_t *)ni->ni_data;
+ ksock_net_t *net = (ksock_net_t *)ni->ni_data;
- LASSERT (hello->kshm_nips <= LNET_MAX_INTERFACES);
+ LASSERT(hello->kshm_nips <= LNET_MAX_INTERFACES);
/* rely on caller to hold a ref on socket so it wouldn't disappear */
- LASSERT (conn->ksnc_proto != NULL);
+ LASSERT(conn->ksnc_proto != NULL);
- hello->kshm_src_nid = ni->ni_nid;
- hello->kshm_dst_nid = peer_nid;
- hello->kshm_src_pid = the_lnet.ln_pid;
+ hello->kshm_src_nid = ni->ni_nid;
+ hello->kshm_dst_nid = peer_nid;
+ hello->kshm_src_pid = the_lnet.ln_pid;
hello->kshm_src_incarnation = net->ksnn_incarnation;
- hello->kshm_ctype = conn->ksnc_type;
+ hello->kshm_ctype = conn->ksnc_type;
return conn->ksnc_proto->pro_send_hello(conn, hello);
}
* EALREADY lost connection race
* EPROTO protocol version mismatch
*/
- struct socket *sock = conn->ksnc_sock;
- int active = (conn->ksnc_proto != NULL);
- int timeout;
- int proto_match;
- int rc;
- ksock_proto_t *proto;
- lnet_process_id_t recv_id;
+ struct socket *sock = conn->ksnc_sock;
+ int active = (conn->ksnc_proto != NULL);
+ int timeout;
+ int proto_match;
+ int rc;
+ ksock_proto_t *proto;
+ lnet_process_id_t recv_id;
/* socket type set on active connections - not set on passive */
- LASSERT (!active == !(conn->ksnc_type != SOCKLND_CONN_NONE));
+ LASSERT(!active == !(conn->ksnc_type != SOCKLND_CONN_NONE));
timeout = active ? *ksocknal_tunables.ksnd_timeout :
lnet_acceptor_timeout();
if (rc != 0) {
CERROR("Error %d reading HELLO from %pI4h\n",
rc, &conn->ksnc_ipaddr);
- LASSERT (rc < 0);
+ LASSERT(rc < 0);
return rc;
}
if (rc != 0) {
CERROR("Error %d reading or checking hello from from %pI4h\n",
rc, &conn->ksnc_ipaddr);
- LASSERT (rc < 0);
+ LASSERT(rc < 0);
return rc;
}
static int
ksocknal_connect (ksock_route_t *route)
{
- LIST_HEAD (zombies);
- ksock_peer_t *peer = route->ksnr_peer;
- int type;
- int wanted;
- struct socket *sock;
- unsigned long deadline;
- int retry_later = 0;
- int rc = 0;
+ LIST_HEAD(zombies);
+ ksock_peer_t *peer = route->ksnr_peer;
+ int type;
+ int wanted;
+ struct socket *sock;
+ unsigned long deadline;
+ int retry_later = 0;
+ int rc = 0;
deadline = cfs_time_add(cfs_time_current(),
cfs_time_seconds(*ksocknal_tunables.ksnd_timeout));
write_lock_bh(&ksocknal_data.ksnd_global_lock);
- LASSERT (route->ksnr_scheduled);
- LASSERT (!route->ksnr_connecting);
+ LASSERT(route->ksnr_scheduled);
+ LASSERT(!route->ksnr_connecting);
route->ksnr_connecting = 1;
ksocknal_connd_get_route_locked(signed long *timeout_p)
{
ksock_route_t *route;
- unsigned long now;
+ unsigned long now;
now = cfs_time_current();
int
ksocknal_connd (void *arg)
{
- spinlock_t *connd_lock = &ksocknal_data.ksnd_connd_lock;
- ksock_connreq_t *cr;
- wait_queue_t wait;
- int nloops = 0;
- int cons_retry = 0;
+ spinlock_t *connd_lock = &ksocknal_data.ksnd_connd_lock;
+ ksock_connreq_t *cr;
+ wait_queue_t wait;
+ int nloops = 0;
+ int cons_retry = 0;
- cfs_block_allsigs ();
+ cfs_block_allsigs();
init_waitqueue_entry(&wait, current);
ksock_route_t *route = NULL;
long sec = get_seconds();
long timeout = MAX_SCHEDULE_TIMEOUT;
- int dropped_lock = 0;
+ int dropped_lock = 0;
if (ksocknal_connd_check_stop(sec, &timeout)) {
/* wakeup another one to check stop */
ksocknal_find_timed_out_conn (ksock_peer_t *peer)
{
/* We're called with a shared lock on ksnd_global_lock */
- ksock_conn_t *conn;
- struct list_head *ctmp;
+ ksock_conn_t *conn;
+ struct list_head *ctmp;
list_for_each (ctmp, &peer->ksnp_conns) {
- int error;
+ int error;
conn = list_entry (ctmp, ksock_conn_t, ksnc_list);
/* Don't need the {get,put}connsock dance to deref ksnc_sock */
- LASSERT (!conn->ksnc_closing);
+ LASSERT(!conn->ksnc_closing);
/* SOCK_ERROR will reset error code of socket in
* some platform (like Darwin8.x) */
static inline void
ksocknal_flush_stale_txs(ksock_peer_t *peer)
{
- ksock_tx_t *tx;
- LIST_HEAD (stale_txs);
+ ksock_tx_t *tx;
+ LIST_HEAD(stale_txs);
write_lock_bh(&ksocknal_data.ksnd_global_lock);
static int
ksocknal_send_keepalive_locked(ksock_peer_t *peer)
{
- ksock_sched_t *sched;
- ksock_conn_t *conn;
- ksock_tx_t *tx;
+ ksock_sched_t *sched;
+ ksock_conn_t *conn;
+ ksock_tx_t *tx;
if (list_empty(&peer->ksnp_conns)) /* last_alive will be updated by create_conn */
return 0;
static void
ksocknal_check_peer_timeouts (int idx)
{
- struct list_head *peers = &ksocknal_data.ksnd_peers[idx];
- ksock_peer_t *peer;
- ksock_conn_t *conn;
- ksock_tx_t *tx;
+ struct list_head *peers = &ksocknal_data.ksnd_peers[idx];
+ ksock_peer_t *peer;
+ ksock_conn_t *conn;
+ ksock_tx_t *tx;
again:
/* NB. We expect to have a look at all the peers and not find any
read_lock(&ksocknal_data.ksnd_global_lock);
list_for_each_entry(peer, peers, ksnp_list) {
- unsigned long deadline = 0;
- int resid = 0;
- int n = 0;
+ unsigned long deadline = 0;
+ int resid = 0;
+ int n = 0;
if (ksocknal_send_keepalive_locked(peer) != 0) {
read_unlock(&ksocknal_data.ksnd_global_lock);
tx = list_entry(peer->ksnp_zc_req_list.next,
ksock_tx_t, tx_zc_list);
deadline = tx->tx_deadline;
- resid = tx->tx_resid;
- conn = tx->tx_conn;
+ resid = tx->tx_resid;
+ conn = tx->tx_conn;
ksocknal_conn_addref(conn);
spin_unlock(&peer->ksnp_lock);
int
ksocknal_reaper (void *arg)
{
- wait_queue_t wait;
- ksock_conn_t *conn;
- ksock_sched_t *sched;
- struct list_head enomem_conns;
- int nenomem_conns;
- long timeout;
- int i;
- int peer_index = 0;
- unsigned long deadline = cfs_time_current();
-
- cfs_block_allsigs ();
+ wait_queue_t wait;
+ ksock_conn_t *conn;
+ ksock_sched_t *sched;
+ struct list_head enomem_conns;
+ int nenomem_conns;
+ long timeout;
+ int i;
+ int peer_index = 0;
+ unsigned long deadline = cfs_time_current();
+
+ cfs_block_allsigs();
INIT_LIST_HEAD(&enomem_conns);
init_waitqueue_entry(&wait, current);
cfs_time_current())) <= 0) {
const int n = 4;
const int p = 1;
- int chunk = ksocknal_data.ksnd_peer_hash_size;
+ int chunk = ksocknal_data.ksnd_peer_hash_size;
/* Time to check for timeouts on a few more peers: I do
* checks every 'p' seconds on a proportion of the peer
int
ksocknal_lib_zc_capable(ksock_conn_t *conn)
{
- int caps = conn->ksnc_sock->sk->sk_route_caps;
+ int caps = conn->ksnc_sock->sk->sk_route_caps;
if (conn->ksnc_proto == &ksocknal_protocol_v1x)
return 0;
ksocknal_lib_send_iov(ksock_conn_t *conn, ksock_tx_t *tx)
{
struct socket *sock = conn->ksnc_sock;
- int nob;
- int rc;
+ int nob;
+ int rc;
if (*ksocknal_tunables.ksnd_enable_csum && /* checksum enabled */
conn->ksnc_proto == &ksocknal_protocol_v2x && /* V2.x connection */
{
#if SOCKNAL_SINGLE_FRAG_TX
- struct kvec scratch;
- struct kvec *scratchiov = &scratch;
- unsigned int niov = 1;
+ struct kvec scratch;
+ struct kvec *scratchiov = &scratch;
+ unsigned int niov = 1;
#else
- struct kvec *scratchiov = conn->ksnc_scheduler->kss_scratch_iov;
- unsigned int niov = tx->tx_niov;
+ struct kvec *scratchiov = conn->ksnc_scheduler->kss_scratch_iov;
+ unsigned int niov = tx->tx_niov;
#endif
struct msghdr msg = {.msg_flags = MSG_DONTWAIT};
- int i;
+ int i;
for (nob = i = 0; i < niov; i++) {
scratchiov[i] = tx->tx_iov[i];
ksocknal_lib_send_kiov(ksock_conn_t *conn, ksock_tx_t *tx)
{
struct socket *sock = conn->ksnc_sock;
- lnet_kiov_t *kiov = tx->tx_kiov;
- int rc;
- int nob;
+ lnet_kiov_t *kiov = tx->tx_kiov;
+ int rc;
+ int nob;
/* Not NOOP message */
LASSERT(tx->tx_lnetmsg != NULL);
* or leave them alone. */
if (tx->tx_msg.ksm_zc_cookies[0] != 0) {
/* Zero copy is enabled */
- struct sock *sk = sock->sk;
- struct page *page = kiov->kiov_page;
- int offset = kiov->kiov_offset;
- int fragsize = kiov->kiov_len;
- int msgflg = MSG_DONTWAIT;
+ struct sock *sk = sock->sk;
+ struct page *page = kiov->kiov_page;
+ int offset = kiov->kiov_offset;
+ int fragsize = kiov->kiov_len;
+ int msgflg = MSG_DONTWAIT;
CDEBUG(D_NET, "page %p + offset %x for %d\n",
page, offset, kiov->kiov_len);
}
} else {
#if SOCKNAL_SINGLE_FRAG_TX || !SOCKNAL_RISK_KMAP_DEADLOCK
- struct kvec scratch;
+ struct kvec scratch;
struct kvec *scratchiov = &scratch;
- unsigned int niov = 1;
+ unsigned int niov = 1;
#else
#ifdef CONFIG_HIGHMEM
#warning "XXX risk of kmap deadlock on multiple frags..."
#endif
struct kvec *scratchiov = conn->ksnc_scheduler->kss_scratch_iov;
- unsigned int niov = tx->tx_nkiov;
+ unsigned int niov = tx->tx_nkiov;
#endif
struct msghdr msg = {.msg_flags = MSG_DONTWAIT};
- int i;
+ int i;
for (nob = i = 0; i < niov; i++) {
scratchiov[i].iov_base = kmap(kiov[i].kiov_page) +
void
ksocknal_lib_eager_ack(ksock_conn_t *conn)
{
- int opt = 1;
+ int opt = 1;
struct socket *sock = conn->ksnc_sock;
/* Remind the socket to ACK eagerly. If I don't, the socket might
ksocknal_lib_recv_iov(ksock_conn_t *conn)
{
#if SOCKNAL_SINGLE_FRAG_RX
- struct kvec scratch;
+ struct kvec scratch;
struct kvec *scratchiov = &scratch;
- unsigned int niov = 1;
+ unsigned int niov = 1;
#else
struct kvec *scratchiov = conn->ksnc_scheduler->kss_scratch_iov;
- unsigned int niov = conn->ksnc_rx_niov;
+ unsigned int niov = conn->ksnc_rx_niov;
#endif
struct kvec *iov = conn->ksnc_rx_iov;
struct msghdr msg = {
- .msg_flags = 0
+ .msg_flags = 0
};
- int nob;
- int i;
- int rc;
- int fragnob;
- int sum;
- __u32 saved_csum;
+ int nob;
+ int i;
+ int rc;
+ int fragnob;
+ int sum;
+ __u32 saved_csum;
/* NB we can't trust socket ops to either consume our iovs
* or leave them alone. */
ksocknal_lib_kiov_vmap(lnet_kiov_t *kiov, int niov,
struct kvec *iov, struct page **pages)
{
- void *addr;
- int nob;
- int i;
+ void *addr;
+ int nob;
+ int i;
if (!*ksocknal_tunables.ksnd_zc_recv || pages == NULL)
return NULL;
ksocknal_lib_recv_kiov(ksock_conn_t *conn)
{
#if SOCKNAL_SINGLE_FRAG_RX || !SOCKNAL_RISK_KMAP_DEADLOCK
- struct kvec scratch;
- struct kvec *scratchiov = &scratch;
- struct page **pages = NULL;
- unsigned int niov = 1;
+ struct kvec scratch;
+ struct kvec *scratchiov = &scratch;
+ struct page **pages = NULL;
+ unsigned int niov = 1;
#else
#ifdef CONFIG_HIGHMEM
#warning "XXX risk of kmap deadlock on multiple frags..."
#endif
- struct kvec *scratchiov = conn->ksnc_scheduler->kss_scratch_iov;
- struct page **pages = conn->ksnc_scheduler->kss_rx_scratch_pgs;
- unsigned int niov = conn->ksnc_rx_nkiov;
+ struct kvec *scratchiov = conn->ksnc_scheduler->kss_scratch_iov;
+ struct page **pages = conn->ksnc_scheduler->kss_rx_scratch_pgs;
+ unsigned int niov = conn->ksnc_rx_nkiov;
#endif
lnet_kiov_t *kiov = conn->ksnc_rx_kiov;
struct msghdr msg = {
- .msg_flags = 0
+ .msg_flags = 0
};
- int nob;
- int i;
- int rc;
- void *base;
- void *addr;
- int sum;
- int fragnob;
+ int nob;
+ int i;
+ int rc;
+ void *base;
+ void *addr;
+ int sum;
+ int fragnob;
int n;
/* NB we can't trust socket ops to either consume our iovs
for (i = 0, sum = rc; sum > 0; i++, sum -= fragnob) {
LASSERT(i < niov);
- /* Dang! have to kmap again because I have nowhere to stash the
- * mapped address. But by doing it while the page is still
- * mapped, the kernel just bumps the map count and returns me
- * the address it stashed. */
+ /* Dang! have to kmap again because I have nowhere to
+ * stash the mapped address. But by doing it while the
+ * page is still mapped, the kernel just bumps the map
+ * count and returns me the address it stashed. */
base = kmap(kiov[i].kiov_page) + kiov[i].kiov_offset;
fragnob = kiov[i].kiov_len;
if (fragnob > sum)
void
ksocknal_lib_csum_tx(ksock_tx_t *tx)
{
- int i;
- __u32 csum;
- void *base;
+ int i;
+ __u32 csum;
+ void *base;
LASSERT(tx->tx_iov[0].iov_base == &tx->tx_msg);
LASSERT(tx->tx_conn != NULL);
ksocknal_lib_get_conn_tunables(ksock_conn_t *conn, int *txmem, int *rxmem, int *nagle)
{
struct socket *sock = conn->ksnc_sock;
- int len;
- int rc;
+ int len;
+ int rc;
rc = ksocknal_connsock_addref(conn);
if (rc != 0) {
int
ksocknal_lib_setup_sock(struct socket *sock)
{
- int rc;
- int option;
- int keep_idle;
- int keep_intvl;
- int keep_count;
- int do_keepalive;
- struct linger linger;
+ int rc;
+ int option;
+ int keep_idle;
+ int keep_intvl;
+ int keep_count;
+ int do_keepalive;
+ struct linger linger;
sock->sk->sk_allocation = GFP_NOFS;
void
ksocknal_lib_push_conn(ksock_conn_t *conn)
{
- struct sock *sk;
+ struct sock *sk;
struct tcp_sock *tp;
- int nonagle;
- int val = 1;
- int rc;
+ int nonagle;
+ int val = 1;
+ int rc;
rc = ksocknal_connsock_addref(conn);
if (rc != 0) /* being shut down */
static void
ksocknal_data_ready(struct sock *sk)
{
- ksock_conn_t *conn;
+ ksock_conn_t *conn;
/* interleave correctly with closing sockets... */
LASSERT(!in_irq());
static void
ksocknal_write_space(struct sock *sk)
{
- ksock_conn_t *conn;
- int wspace;
- int min_wpace;
+ ksock_conn_t *conn;
+ int wspace;
+ int min_wpace;
/* interleave correctly with closing sockets... */
LASSERT(!in_irq());
int
ksocknal_lib_memory_pressure(ksock_conn_t *conn)
{
- int rc = 0;
+ int rc = 0;
ksock_sched_t *sched;
sched = conn->ksnc_scheduler;
int ksocknal_tunables_init(void)
{
-
/* initialize ksocknal_tunables structure */
- ksocknal_tunables.ksnd_timeout = &sock_timeout;
- ksocknal_tunables.ksnd_nscheds = &nscheds;
- ksocknal_tunables.ksnd_nconnds = &nconnds;
- ksocknal_tunables.ksnd_nconnds_max = &nconnds_max;
+ ksocknal_tunables.ksnd_timeout = &sock_timeout;
+ ksocknal_tunables.ksnd_nscheds = &nscheds;
+ ksocknal_tunables.ksnd_nconnds = &nconnds;
+ ksocknal_tunables.ksnd_nconnds_max = &nconnds_max;
ksocknal_tunables.ksnd_min_reconnectms = &min_reconnectms;
ksocknal_tunables.ksnd_max_reconnectms = &max_reconnectms;
- ksocknal_tunables.ksnd_eager_ack = &eager_ack;
- ksocknal_tunables.ksnd_typed_conns = &typed_conns;
- ksocknal_tunables.ksnd_min_bulk = &min_bulk;
+ ksocknal_tunables.ksnd_eager_ack = &eager_ack;
+ ksocknal_tunables.ksnd_typed_conns = &typed_conns;
+ ksocknal_tunables.ksnd_min_bulk = &min_bulk;
ksocknal_tunables.ksnd_tx_buffer_size = &tx_buffer_size;
ksocknal_tunables.ksnd_rx_buffer_size = &rx_buffer_size;
- ksocknal_tunables.ksnd_nagle = &nagle;
- ksocknal_tunables.ksnd_round_robin = &round_robin;
- ksocknal_tunables.ksnd_keepalive = &keepalive;
+ ksocknal_tunables.ksnd_nagle = &nagle;
+ ksocknal_tunables.ksnd_round_robin = &round_robin;
+ ksocknal_tunables.ksnd_keepalive = &keepalive;
ksocknal_tunables.ksnd_keepalive_idle = &keepalive_idle;
ksocknal_tunables.ksnd_keepalive_count = &keepalive_count;
ksocknal_tunables.ksnd_keepalive_intvl = &keepalive_intvl;
- ksocknal_tunables.ksnd_credits = &credits;
+ ksocknal_tunables.ksnd_credits = &credits;
ksocknal_tunables.ksnd_peertxcredits = &peer_credits;
ksocknal_tunables.ksnd_peerrtrcredits = &peer_buffer_credits;
- ksocknal_tunables.ksnd_peertimeout = &peer_timeout;
- ksocknal_tunables.ksnd_enable_csum = &enable_csum;
+ ksocknal_tunables.ksnd_peertimeout = &peer_timeout;
+ ksocknal_tunables.ksnd_enable_csum = &enable_csum;
ksocknal_tunables.ksnd_inject_csum_error = &inject_csum_error;
ksocknal_tunables.ksnd_nonblk_zcack = &nonblk_zcack;
ksocknal_tunables.ksnd_zc_min_payload = &zc_min_payload;
- ksocknal_tunables.ksnd_zc_recv = &zc_recv;
+ ksocknal_tunables.ksnd_zc_recv = &zc_recv;
ksocknal_tunables.ksnd_zc_recv_min_nfrags = &zc_recv_min_nfrags;
-
-
#if SOCKNAL_VERSION_DEBUG
- ksocknal_tunables.ksnd_protocol = &protocol;
+ ksocknal_tunables.ksnd_protocol = &protocol;
#endif
if (*ksocknal_tunables.ksnd_zc_min_payload < (2 << 10))
void
ksocknal_next_tx_carrier(ksock_conn_t *conn)
{
- ksock_tx_t *tx = conn->ksnc_tx_carrier;
+ ksock_tx_t *tx = conn->ksnc_tx_carrier;
/* Called holding BH lock: conn->ksnc_scheduler->kss_lock */
LASSERT(!list_empty(&conn->ksnc_tx_queue));
static ksock_tx_t *
ksocknal_queue_tx_msg_v2(ksock_conn_t *conn, ksock_tx_t *tx_msg)
{
- ksock_tx_t *tx = conn->ksnc_tx_carrier;
+ ksock_tx_t *tx = conn->ksnc_tx_carrier;
/*
* Enqueue tx_msg:
static int
ksocknal_handle_zcreq(ksock_conn_t *c, __u64 cookie, int remote)
{
- ksock_peer_t *peer = c->ksnc_peer;
- ksock_conn_t *conn;
- ksock_tx_t *tx;
- int rc;
+ ksock_peer_t *peer = c->ksnc_peer;
+ ksock_conn_t *conn;
+ ksock_tx_t *tx;
+ int rc;
read_lock(&ksocknal_data.ksnd_global_lock);
static int
ksocknal_handle_zcack(ksock_conn_t *conn, __u64 cookie1, __u64 cookie2)
{
- ksock_peer_t *peer = conn->ksnc_peer;
- ksock_tx_t *tx;
- ksock_tx_t *tmp;
+ ksock_peer_t *peer = conn->ksnc_peer;
+ ksock_tx_t *tx;
+ ksock_tx_t *tmp;
LIST_HEAD(zlist);
- int count;
+ int count;
if (cookie1 == 0)
cookie1 = cookie2;
static int
ksocknal_send_hello_v1(ksock_conn_t *conn, ksock_hello_msg_t *hello)
{
- struct socket *sock = conn->ksnc_sock;
- lnet_hdr_t *hdr;
+ struct socket *sock = conn->ksnc_sock;
+ lnet_hdr_t *hdr;
lnet_magicversion_t *hmv;
- int rc;
- int i;
+ int rc;
+ int i;
CLASSERT(sizeof(lnet_magicversion_t) == offsetof(lnet_hdr_t, src_nid));
/* Re-organize V2.x message header to V1.x (lnet_hdr_t)
* header and send out */
- hmv->magic = cpu_to_le32 (LNET_PROTO_TCP_MAGIC);
+ hmv->magic = cpu_to_le32 (LNET_PROTO_TCP_MAGIC);
hmv->version_major = cpu_to_le16 (KSOCK_PROTO_V1_MAJOR);
hmv->version_minor = cpu_to_le16 (KSOCK_PROTO_V1_MINOR);
LNET_UNLOCK();
}
- hdr->src_nid = cpu_to_le64 (hello->kshm_src_nid);
- hdr->src_pid = cpu_to_le32 (hello->kshm_src_pid);
- hdr->type = cpu_to_le32 (LNET_MSG_HELLO);
+ hdr->src_nid = cpu_to_le64 (hello->kshm_src_nid);
+ hdr->src_pid = cpu_to_le32 (hello->kshm_src_pid);
+ hdr->type = cpu_to_le32 (LNET_MSG_HELLO);
hdr->payload_length = cpu_to_le32 (hello->kshm_nips * sizeof(__u32));
hdr->msg.hello.type = cpu_to_le32 (hello->kshm_ctype);
hdr->msg.hello.incarnation = cpu_to_le64 (hello->kshm_src_incarnation);
ksocknal_send_hello_v2(ksock_conn_t *conn, ksock_hello_msg_t *hello)
{
struct socket *sock = conn->ksnc_sock;
- int rc;
+ int rc;
hello->kshm_magic = LNET_PROTO_MAGIC;
hello->kshm_version = conn->ksnc_proto->pro_version;
ksocknal_recv_hello_v1(ksock_conn_t *conn, ksock_hello_msg_t *hello,
int timeout)
{
- struct socket *sock = conn->ksnc_sock;
- lnet_hdr_t *hdr;
- int rc;
- int i;
+ struct socket *sock = conn->ksnc_sock;
+ lnet_hdr_t *hdr;
+ int rc;
+ int i;
LIBCFS_ALLOC(hdr, sizeof(*hdr));
if (hdr == NULL) {
goto out;
}
- hello->kshm_src_nid = le64_to_cpu(hdr->src_nid);
- hello->kshm_src_pid = le32_to_cpu(hdr->src_pid);
+ hello->kshm_src_nid = le64_to_cpu(hdr->src_nid);
+ hello->kshm_src_pid = le32_to_cpu(hdr->src_pid);
hello->kshm_src_incarnation = le64_to_cpu(hdr->msg.hello.incarnation);
- hello->kshm_ctype = le32_to_cpu(hdr->msg.hello.type);
- hello->kshm_nips = le32_to_cpu(hdr->payload_length) /
- sizeof(__u32);
+ hello->kshm_ctype = le32_to_cpu(hdr->msg.hello.type);
+ hello->kshm_nips = le32_to_cpu(hdr->payload_length) /
+ sizeof(__u32);
if (hello->kshm_nips > LNET_MAX_INTERFACES) {
CERROR("Bad nips %d from ip %pI4h\n",
static int
ksocknal_recv_hello_v2(ksock_conn_t *conn, ksock_hello_msg_t *hello, int timeout)
{
- struct socket *sock = conn->ksnc_sock;
- int rc;
- int i;
+ struct socket *sock = conn->ksnc_sock;
+ int rc;
+ int i;
if (hello->kshm_magic == LNET_PROTO_MAGIC)
conn->ksnc_flip = 0;
static void
ksocknal_unpack_msg_v1(ksock_msg_t *msg)
{
- msg->ksm_csum = 0;
- msg->ksm_type = KSOCK_MSG_LNET;
- msg->ksm_zc_cookies[0] = msg->ksm_zc_cookies[1] = 0;
+ msg->ksm_csum = 0;
+ msg->ksm_type = KSOCK_MSG_LNET;
+ msg->ksm_zc_cookies[0] = msg->ksm_zc_cookies[1] = 0;
}
static void
}
ksock_proto_t ksocknal_protocol_v1x = {
- .pro_version = KSOCK_PROTO_V1,
- .pro_send_hello = ksocknal_send_hello_v1,
- .pro_recv_hello = ksocknal_recv_hello_v1,
- .pro_pack = ksocknal_pack_msg_v1,
- .pro_unpack = ksocknal_unpack_msg_v1,
- .pro_queue_tx_msg = ksocknal_queue_tx_msg_v1,
- .pro_handle_zcreq = NULL,
- .pro_handle_zcack = NULL,
- .pro_queue_tx_zcack = NULL,
- .pro_match_tx = ksocknal_match_tx
+ .pro_version = KSOCK_PROTO_V1,
+ .pro_send_hello = ksocknal_send_hello_v1,
+ .pro_recv_hello = ksocknal_recv_hello_v1,
+ .pro_pack = ksocknal_pack_msg_v1,
+ .pro_unpack = ksocknal_unpack_msg_v1,
+ .pro_queue_tx_msg = ksocknal_queue_tx_msg_v1,
+ .pro_handle_zcreq = NULL,
+ .pro_handle_zcack = NULL,
+ .pro_queue_tx_zcack = NULL,
+ .pro_match_tx = ksocknal_match_tx
};
ksock_proto_t ksocknal_protocol_v2x = {
- .pro_version = KSOCK_PROTO_V2,
- .pro_send_hello = ksocknal_send_hello_v2,
- .pro_recv_hello = ksocknal_recv_hello_v2,
- .pro_pack = ksocknal_pack_msg_v2,
- .pro_unpack = ksocknal_unpack_msg_v2,
- .pro_queue_tx_msg = ksocknal_queue_tx_msg_v2,
- .pro_queue_tx_zcack = ksocknal_queue_tx_zcack_v2,
- .pro_handle_zcreq = ksocknal_handle_zcreq,
- .pro_handle_zcack = ksocknal_handle_zcack,
- .pro_match_tx = ksocknal_match_tx
+ .pro_version = KSOCK_PROTO_V2,
+ .pro_send_hello = ksocknal_send_hello_v2,
+ .pro_recv_hello = ksocknal_recv_hello_v2,
+ .pro_pack = ksocknal_pack_msg_v2,
+ .pro_unpack = ksocknal_unpack_msg_v2,
+ .pro_queue_tx_msg = ksocknal_queue_tx_msg_v2,
+ .pro_queue_tx_zcack = ksocknal_queue_tx_zcack_v2,
+ .pro_handle_zcreq = ksocknal_handle_zcreq,
+ .pro_handle_zcack = ksocknal_handle_zcack,
+ .pro_match_tx = ksocknal_match_tx
};
ksock_proto_t ksocknal_protocol_v3x = {
- .pro_version = KSOCK_PROTO_V3,
- .pro_send_hello = ksocknal_send_hello_v2,
- .pro_recv_hello = ksocknal_recv_hello_v2,
- .pro_pack = ksocknal_pack_msg_v2,
- .pro_unpack = ksocknal_unpack_msg_v2,
- .pro_queue_tx_msg = ksocknal_queue_tx_msg_v2,
- .pro_queue_tx_zcack = ksocknal_queue_tx_zcack_v3,
- .pro_handle_zcreq = ksocknal_handle_zcreq,
- .pro_handle_zcack = ksocknal_handle_zcack,
- .pro_match_tx = ksocknal_match_tx_v3
+ .pro_version = KSOCK_PROTO_V3,
+ .pro_send_hello = ksocknal_send_hello_v2,
+ .pro_recv_hello = ksocknal_recv_hello_v2,
+ .pro_pack = ksocknal_pack_msg_v2,
+ .pro_unpack = ksocknal_unpack_msg_v2,
+ .pro_queue_tx_msg = ksocknal_queue_tx_msg_v2,
+ .pro_queue_tx_zcack = ksocknal_queue_tx_zcack_v3,
+ .pro_handle_zcreq = ksocknal_handle_zcreq,
+ .pro_handle_zcack = ksocknal_handle_zcack,
+ .pro_match_tx = ksocknal_match_tx_v3
};
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