* Author: Eric Barton <eric@bartonsoftware.com>
*/
+#include <linux/module.h>
+#include <linux/kernel.h>
+
+#if defined(NEED_LOCKDEP_IS_HELD_DISCARD_CONST) \
+ && defined(CONFIG_LOCKDEP) \
+ && defined(lockdep_is_held)
+#undef lockdep_is_held
+ #define lockdep_is_held(lock) \
+ lock_is_held((struct lockdep_map *)&(lock)->dep_map)
+#endif
+
#ifdef HAVE_COMPAT_RDMA
#include <linux/compat-2.6.h>
#undef NEED_KTIME_GET_REAL_NS
#endif
+/* MOFED has its own bitmap_alloc backport */
+#define HAVE_BITMAP_ALLOC 1
+
#endif
-#include <linux/module.h>
-#include <linux/kernel.h>
#include <linux/kthread.h>
#include <linux/mm.h>
#include <linux/string.h>
#include <lnet/lib-lnet.h>
#define IBLND_PEER_HASH_SIZE 101 /* # peer_ni lists */
-/* # scheduler loops before reschedule */
-#define IBLND_RESCHED 100
#define IBLND_N_SCHED 2
#define IBLND_N_SCHED_HIGH 4
struct kib_tunables {
int *kib_dev_failover; /* HCA failover */
unsigned int *kib_service; /* IB service number */
- int *kib_min_reconnect_interval; /* first failed connection retry... */
- int *kib_max_reconnect_interval; /* ...exponentially increasing to this */
int *kib_cksum; /* checksum struct kib_msg? */
int *kib_timeout; /* comms timeout (seconds) */
int *kib_keepalive; /* keepalive timeout (seconds) */
- int *kib_ntx; /* # tx descs */
char **kib_default_ipif; /* default IPoIB interface */
int *kib_retry_count;
int *kib_rnr_retry_count;
#define IBLND_CREDITS_MAX ((typeof(((struct kib_msg *) 0)->ibm_credits)) - 1) /* Max # of peer_ni credits */
/* when eagerly to return credits */
-#define IBLND_CREDITS_HIGHWATER(t, v) ((v) == IBLND_MSG_VERSION_1 ? \
+#define IBLND_CREDITS_HIGHWATER(t, conn) ((conn->ibc_version) == IBLND_MSG_VERSION_1 ? \
IBLND_CREDIT_HIGHWATER_V1 : \
- t->lnd_peercredits_hiw)
+ min(t->lnd_peercredits_hiw, (__u32)conn->ibc_queue_depth - 1))
#ifdef HAVE_RDMA_CREATE_ID_5ARG
-# define kiblnd_rdma_create_id(ns, cb, dev, ps, qpt) rdma_create_id(ns, cb, \
- dev, ps, \
- qpt)
+# define kiblnd_rdma_create_id(ns, cb, dev, ps, qpt) \
+ rdma_create_id((ns) ? (ns) : &init_net, cb, dev, ps, qpt)
#else
# ifdef HAVE_RDMA_CREATE_ID_4ARG
-# define kiblnd_rdma_create_id(ns, cb, dev, ps, qpt) rdma_create_id(cb, dev, \
- ps, qpt)
+# define kiblnd_rdma_create_id(ns, cb, dev, ps, qpt) \
+ rdma_create_id(cb, dev, ps, qpt)
# else
-# define kiblnd_rdma_create_id(ns, cb, dev, ps, qpt) rdma_create_id(cb, dev, \
- ps)
+# define kiblnd_rdma_create_id(ns, cb, dev, ps, qpt) \
+ rdma_create_id(cb, dev, ps)
# endif
#endif
int ibh_page_shift; /* page shift of current HCA */
int ibh_page_size; /* page size of current HCA */
__u64 ibh_page_mask; /* page mask of current HCA */
- int ibh_mr_shift; /* bits shift of max MR size */
__u64 ibh_mr_size; /* size of MR */
+ int ibh_max_qp_wr; /* maximum work requests size */
#ifdef HAVE_IB_GET_DMA_MR
struct ib_mr *ibh_mrs; /* global MR */
#endif
struct ib_pd *ibh_pd; /* PD */
+ u8 ibh_port; /* port number */
+ struct ib_event_handler
+ ibh_event_handler; /* IB event handler */
+ int ibh_state; /* device status */
+#define IBLND_DEV_PORT_DOWN 0
+#define IBLND_DEV_PORT_ACTIVE 1
+#define IBLND_DEV_FATAL 2
struct kib_dev *ibh_dev; /* owner */
atomic_t ibh_ref; /* refcount */
};
struct kib_fmr_poolset **ibn_fmr_ps; /* fmr pool-set */
struct kib_dev *ibn_dev; /* underlying IB device */
+ struct lnet_ni *ibn_ni; /* LNet interface */
};
#define KIB_THREAD_SHIFT 16
struct list_head kib_reconn_list;
/* peers wait for reconnection */
struct list_head kib_reconn_wait;
+ /* connections wait for completion */
+ struct list_head kib_connd_waits;
/*
* The second that peers are pulled out from \a kib_reconn_wait
* for reconnection.
struct kib_conn *rx_conn;
/* # bytes received (-1 while posted) */
int rx_nob;
- /* completion status */
- enum ib_wc_status rx_status;
/* message buffer (host vaddr) */
struct kib_msg *rx_msg;
/* message buffer (I/O addr) */
__u16 ibc_queue_depth;
/* connections max frags */
__u16 ibc_max_frags;
+ /* count of timeout txs waiting on cq */
+ __u16 ibc_waits;
/* receive buffers owned */
unsigned int ibc_nrx:16;
/* scheduled for attention */
unsigned char ibp_races;
/* # consecutive reconnection attempts to this peer */
unsigned int ibp_reconnected;
+ /* number of total active retries */
+ unsigned int ibp_retries;
/* errno on closing this peer_ni */
int ibp_error;
/* max map_on_demand */
__u16 ibp_max_frags;
/* max_peer_credits */
__u16 ibp_queue_depth;
+ /* reduced value which allows conn to be created if max fails */
+ __u16 ibp_queue_depth_mod;
};
#ifndef HAVE_IB_INC_RKEY
int kiblnd_msg_queue_size(int version, struct lnet_ni *ni);
+static inline int kiblnd_timeout(void)
+{
+ return *kiblnd_tunables.kib_timeout ? *kiblnd_tunables.kib_timeout :
+ lnet_get_lnd_timeout();
+}
+
static inline int
kiblnd_concurrent_sends(int version, struct lnet_ni *ni)
{
tunables = &ni->ni_lnd_tunables.lnd_tun_u.lnd_o2ib;
if (conn->ibc_outstanding_credits <
- IBLND_CREDITS_HIGHWATER(tunables, conn->ibc_version) &&
+ IBLND_CREDITS_HIGHWATER(tunables, conn) &&
!kiblnd_send_keepalive(conn))
return 0; /* No need to send NOOP */
return rd->rd_frags[index].rf_addr;
}
-static inline __u32
+static inline int
kiblnd_rd_frag_size(struct kib_rdma_desc *rd, int index)
{
return rd->rd_frags[index].rf_nob;
#ifndef HAVE_IB_SG_DMA_ADDRESS
#include <linux/scatterlist.h>
-#define ib_sg_dma_address(dev, sg) sg_dma_address((dev), (sg))
-#define ib_sg_dma_len(dev, sg) sg_dma_len((dev), (sg))
+#define ib_sg_dma_address(dev, sg) sg_dma_address(sg)
+#define ib_sg_dma_len(dev, sg) sg_dma_len(sg)
#endif
static inline __u64 kiblnd_sg_dma_address(struct ib_device *dev,
int kiblnd_send(struct lnet_ni *ni, void *private, struct lnet_msg *lntmsg);
int kiblnd_recv(struct lnet_ni *ni, void *private, struct lnet_msg *lntmsg,
- int delayed, unsigned int niov, struct kvec *iov,
- lnet_kiov_t *kiov, unsigned int offset, unsigned int mlen,
+ int delayed, unsigned int niov,
+ struct bio_vec *kiov, unsigned int offset, unsigned int mlen,
unsigned int rlen);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff