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Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband

Browse Source 
* 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband:
  IPoIB: Make sure struct ipoib_neigh.queue is always initialized
  IB/iser: Use the new verbs DMA mapping functions
  IB/srp: Use new verbs IB DMA mapping functions
  IPoIB: Use the new verbs DMA mapping functions
  IB/core: Use the new verbs DMA mapping functions
  IB/ipath: Implement new verbs DMA mapping functions
  IB: Add DMA mapping functions to allow device drivers to interpose
  RDMA/cma: Export rdma cm interface to userspace
  RDMA/cma: Add support for RDMA_PS_UDP
  RDMA/cma: Allow early transition to RTS to handle lost CM messages
  RDMA/cma: Report connect info with connect events
  RDMA/cma: Remove unneeded qp_type parameter from rdma_cm
  IB/ipath: Fix IRQ for PCI Express HCAs
  RDMA/amso1100: Fix memory leak in c2_qp_modify()
  IB/iser: Remove unused "write-only" variables
  IB/ipath: Remove unused "write-only" variables
  IB/fmr: ib_flush_fmr_pool() may wait too long
This commit is contained in:
Linus Torvalds 2006-12-12 18:52:31 -08:00
commit b1ef951e81
36 changed files with 2145 additions and 353 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/infiniband/core/Makefile
View File

@ -1,9 +1,11 @@
infiniband-$(CONFIG_INFINIBAND_ADDR_TRANS) := ib_addr.o rdma_cm.o
user_access-$(CONFIG_INFINIBAND_ADDR_TRANS) := rdma_ucm.o
obj-$(CONFIG_INFINIBAND) += ib_core.o ib_mad.o ib_sa.o \
ib_cm.o iw_cm.o $(infiniband-y)
obj-$(CONFIG_INFINIBAND_USER_MAD) += ib_umad.o
obj-$(CONFIG_INFINIBAND_USER_ACCESS) += ib_uverbs.o ib_ucm.o
obj-$(CONFIG_INFINIBAND_USER_ACCESS) += ib_uverbs.o ib_ucm.o \
$(user_access-y)
ib_core-y := packer.o ud_header.o verbs.o sysfs.o \
device.o fmr_pool.o cache.o
@ -18,6 +20,8 @@ iw_cm-y := iwcm.o
rdma_cm-y := cma.o
rdma_ucm-y := ucma.o
ib_addr-y := addr.o
ib_umad-y := user_mad.o

4
drivers/infiniband/core/cm.c
View File

@ -3289,6 +3289,10 @@ static int cm_init_qp_rts_attr(struct cm_id_private *cm_id_priv,
spin_lock_irqsave(&cm_id_priv->lock, flags);
switch (cm_id_priv->id.state) {
/* Allow transition to RTS before sending REP */
case IB_CM_REQ_RCVD:
case IB_CM_MRA_REQ_SENT:
case IB_CM_REP_RCVD:
case IB_CM_MRA_REP_SENT:
case IB_CM_REP_SENT:

416
drivers/infiniband/core/cma.c
View File

@ -70,6 +70,7 @@ static DEFINE_MUTEX(lock);
static struct workqueue_struct *cma_wq;
static DEFINE_IDR(sdp_ps);
static DEFINE_IDR(tcp_ps);
static DEFINE_IDR(udp_ps);
struct cma_device {
struct list_head list;
@ -133,7 +134,6 @@ struct rdma_id_private {
u32 seq_num;
u32 qp_num;
enum ib_qp_type qp_type;
u8 srq;
};
@ -392,7 +392,6 @@ int rdma_create_qp(struct rdma_cm_id *id, struct ib_pd *pd,
id->qp = qp;
id_priv->qp_num = qp->qp_num;
id_priv->qp_type = qp->qp_type;
id_priv->srq = (qp->srq != NULL);
return 0;
err:
@ -510,9 +509,17 @@ static inline int cma_any_addr(struct sockaddr *addr)
return cma_zero_addr(addr) || cma_loopback_addr(addr);
}
static inline __be16 cma_port(struct sockaddr *addr)
{
if (addr->sa_family == AF_INET)
return ((struct sockaddr_in *) addr)->sin_port;
else
return ((struct sockaddr_in6 *) addr)->sin6_port;
}
static inline int cma_any_port(struct sockaddr *addr)
{
return !((struct sockaddr_in *) addr)->sin_port;
return !cma_port(addr);
}
static int cma_get_net_info(void *hdr, enum rdma_port_space ps,
@ -594,20 +601,6 @@ static inline int cma_user_data_offset(enum rdma_port_space ps)
}
}
static int cma_notify_user(struct rdma_id_private *id_priv,
enum rdma_cm_event_type type, int status,
void *data, u8 data_len)
{
struct rdma_cm_event event;
event.event = type;
event.status = status;
event.private_data = data;
event.private_data_len = data_len;
return id_priv->id.event_handler(&id_priv->id, &event);
}
static void cma_cancel_route(struct rdma_id_private *id_priv)
{
switch (rdma_node_get_transport(id_priv->id.device->node_type)) {
@ -776,63 +769,61 @@ static int cma_verify_rep(struct rdma_id_private *id_priv, void *data)
return 0;
}
static int cma_rtu_recv(struct rdma_id_private *id_priv)
static void cma_set_rep_event_data(struct rdma_cm_event *event,
struct ib_cm_rep_event_param *rep_data,
void *private_data)
{
int ret;
ret = cma_modify_qp_rts(&id_priv->id);
if (ret)
goto reject;
return 0;
reject:
cma_modify_qp_err(&id_priv->id);
ib_send_cm_rej(id_priv->cm_id.ib, IB_CM_REJ_CONSUMER_DEFINED,
NULL, 0, NULL, 0);
return ret;
event->param.conn.private_data = private_data;
event->param.conn.private_data_len = IB_CM_REP_PRIVATE_DATA_SIZE;
event->param.conn.responder_resources = rep_data->responder_resources;
event->param.conn.initiator_depth = rep_data->initiator_depth;
event->param.conn.flow_control = rep_data->flow_control;
event->param.conn.rnr_retry_count = rep_data->rnr_retry_count;
event->param.conn.srq = rep_data->srq;
event->param.conn.qp_num = rep_data->remote_qpn;
}
static int cma_ib_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
{
struct rdma_id_private *id_priv = cm_id->context;
enum rdma_cm_event_type event;
u8 private_data_len = 0;
int ret = 0, status = 0;
struct rdma_cm_event event;
int ret = 0;
atomic_inc(&id_priv->dev_remove);
if (!cma_comp(id_priv, CMA_CONNECT))
goto out;
memset(&event, 0, sizeof event);
switch (ib_event->event) {
case IB_CM_REQ_ERROR:
case IB_CM_REP_ERROR:
event = RDMA_CM_EVENT_UNREACHABLE;
status = -ETIMEDOUT;
event.event = RDMA_CM_EVENT_UNREACHABLE;
event.status = -ETIMEDOUT;
break;
case IB_CM_REP_RECEIVED:
status = cma_verify_rep(id_priv, ib_event->private_data);
if (status)
event = RDMA_CM_EVENT_CONNECT_ERROR;
event.status = cma_verify_rep(id_priv, ib_event->private_data);
if (event.status)
event.event = RDMA_CM_EVENT_CONNECT_ERROR;
else if (id_priv->id.qp && id_priv->id.ps != RDMA_PS_SDP) {
status = cma_rep_recv(id_priv);
event = status ? RDMA_CM_EVENT_CONNECT_ERROR :
RDMA_CM_EVENT_ESTABLISHED;
event.status = cma_rep_recv(id_priv);
event.event = event.status ? RDMA_CM_EVENT_CONNECT_ERROR :
RDMA_CM_EVENT_ESTABLISHED;
} else
event = RDMA_CM_EVENT_CONNECT_RESPONSE;
private_data_len = IB_CM_REP_PRIVATE_DATA_SIZE;
event.event = RDMA_CM_EVENT_CONNECT_RESPONSE;
cma_set_rep_event_data(&event, &ib_event->param.rep_rcvd,
ib_event->private_data);
break;
case IB_CM_RTU_RECEIVED:
status = cma_rtu_recv(id_priv);
event = status ? RDMA_CM_EVENT_CONNECT_ERROR :
RDMA_CM_EVENT_ESTABLISHED;
case IB_CM_USER_ESTABLISHED:
event.event = RDMA_CM_EVENT_ESTABLISHED;
break;
case IB_CM_DREQ_ERROR:
status = -ETIMEDOUT; /* fall through */
event.status = -ETIMEDOUT; /* fall through */
case IB_CM_DREQ_RECEIVED:
case IB_CM_DREP_RECEIVED:
if (!cma_comp_exch(id_priv, CMA_CONNECT, CMA_DISCONNECT))
goto out;
event = RDMA_CM_EVENT_DISCONNECTED;
event.event = RDMA_CM_EVENT_DISCONNECTED;
break;
case IB_CM_TIMEWAIT_EXIT:
case IB_CM_MRA_RECEIVED:
@ -840,9 +831,10 @@ static int cma_ib_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
goto out;
case IB_CM_REJ_RECEIVED:
cma_modify_qp_err(&id_priv->id);
status = ib_event->param.rej_rcvd.reason;
event = RDMA_CM_EVENT_REJECTED;
private_data_len = IB_CM_REJ_PRIVATE_DATA_SIZE;
event.status = ib_event->param.rej_rcvd.reason;
event.event = RDMA_CM_EVENT_REJECTED;
event.param.conn.private_data = ib_event->private_data;
event.param.conn.private_data_len = IB_CM_REJ_PRIVATE_DATA_SIZE;
break;
default:
printk(KERN_ERR "RDMA CMA: unexpected IB CM event: %d",
@ -850,8 +842,7 @@ static int cma_ib_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
goto out;
}
ret = cma_notify_user(id_priv, event, status, ib_event->private_data,
private_data_len);
ret = id_priv->id.event_handler(&id_priv->id, &event);
if (ret) {
/* Destroy the CM ID by returning a non-zero value. */
id_priv->cm_id.ib = NULL;
@ -865,8 +856,8 @@ out:
return ret;
}
static struct rdma_id_private *cma_new_id(struct rdma_cm_id *listen_id,
struct ib_cm_event *ib_event)
static struct rdma_id_private *cma_new_conn_id(struct rdma_cm_id *listen_id,
struct ib_cm_event *ib_event)
{
struct rdma_id_private *id_priv;
struct rdma_cm_id *id;
@ -913,9 +904,61 @@ err:
return NULL;
}
static struct rdma_id_private *cma_new_udp_id(struct rdma_cm_id *listen_id,
struct ib_cm_event *ib_event)
{
struct rdma_id_private *id_priv;
struct rdma_cm_id *id;
union cma_ip_addr *src, *dst;
__u16 port;
u8 ip_ver;
int ret;
id = rdma_create_id(listen_id->event_handler, listen_id->context,
listen_id->ps);
if (IS_ERR(id))
return NULL;
if (cma_get_net_info(ib_event->private_data, listen_id->ps,
&ip_ver, &port, &src, &dst))
goto err;
cma_save_net_info(&id->route.addr, &listen_id->route.addr,
ip_ver, port, src, dst);
ret = rdma_translate_ip(&id->route.addr.src_addr,
&id->route.addr.dev_addr);
if (ret)
goto err;
id_priv = container_of(id, struct rdma_id_private, id);
id_priv->state = CMA_CONNECT;
return id_priv;
err:
rdma_destroy_id(id);
return NULL;
}
static void cma_set_req_event_data(struct rdma_cm_event *event,
struct ib_cm_req_event_param *req_data,
void *private_data, int offset)
{
event->param.conn.private_data = private_data + offset;
event->param.conn.private_data_len = IB_CM_REQ_PRIVATE_DATA_SIZE - offset;
event->param.conn.responder_resources = req_data->responder_resources;
event->param.conn.initiator_depth = req_data->initiator_depth;
event->param.conn.flow_control = req_data->flow_control;
event->param.conn.retry_count = req_data->retry_count;
event->param.conn.rnr_retry_count = req_data->rnr_retry_count;
event->param.conn.srq = req_data->srq;
event->param.conn.qp_num = req_data->remote_qpn;
}
static int cma_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
{
struct rdma_id_private *listen_id, *conn_id;
struct rdma_cm_event event;
int offset, ret;
listen_id = cm_id->context;
@ -925,7 +968,19 @@ static int cma_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
goto out;
}
conn_id = cma_new_id(&listen_id->id, ib_event);
memset(&event, 0, sizeof event);
offset = cma_user_data_offset(listen_id->id.ps);
event.event = RDMA_CM_EVENT_CONNECT_REQUEST;
if (listen_id->id.ps == RDMA_PS_UDP) {
conn_id = cma_new_udp_id(&listen_id->id, ib_event);
event.param.ud.private_data = ib_event->private_data + offset;
event.param.ud.private_data_len =
IB_CM_SIDR_REQ_PRIVATE_DATA_SIZE - offset;
} else {
conn_id = cma_new_conn_id(&listen_id->id, ib_event);
cma_set_req_event_data(&event, &ib_event->param.req_rcvd,
ib_event->private_data, offset);
}
if (!conn_id) {
ret = -ENOMEM;
goto out;
@ -942,10 +997,7 @@ static int cma_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
cm_id->context = conn_id;
cm_id->cm_handler = cma_ib_handler;
offset = cma_user_data_offset(listen_id->id.ps);
ret = cma_notify_user(conn_id, RDMA_CM_EVENT_CONNECT_REQUEST, 0,
ib_event->private_data + offset,
IB_CM_REQ_PRIVATE_DATA_SIZE - offset);
ret = conn_id->id.event_handler(&conn_id->id, &event);
if (!ret)
goto out;
@ -964,8 +1016,7 @@ out:
static __be64 cma_get_service_id(enum rdma_port_space ps, struct sockaddr *addr)
{
return cpu_to_be64(((u64)ps << 16) +
be16_to_cpu(((struct sockaddr_in *) addr)->sin_port));
return cpu_to_be64(((u64)ps << 16) + be16_to_cpu(cma_port(addr)));
}
static void cma_set_compare_data(enum rdma_port_space ps, struct sockaddr *addr,
@ -1021,15 +1072,16 @@ static void cma_set_compare_data(enum rdma_port_space ps, struct sockaddr *addr,
static int cma_iw_handler(struct iw_cm_id *iw_id, struct iw_cm_event *iw_event)
{
struct rdma_id_private *id_priv = iw_id->context;
enum rdma_cm_event_type event = 0;
struct rdma_cm_event event;
struct sockaddr_in *sin;
int ret = 0;
memset(&event, 0, sizeof event);
atomic_inc(&id_priv->dev_remove);
switch (iw_event->event) {
case IW_CM_EVENT_CLOSE:
event = RDMA_CM_EVENT_DISCONNECTED;
event.event = RDMA_CM_EVENT_DISCONNECTED;
break;
case IW_CM_EVENT_CONNECT_REPLY:
sin = (struct sockaddr_in *) &id_priv->id.route.addr.src_addr;
@ -1037,20 +1089,21 @@ static int cma_iw_handler(struct iw_cm_id *iw_id, struct iw_cm_event *iw_event)
sin = (struct sockaddr_in *) &id_priv->id.route.addr.dst_addr;
*sin = iw_event->remote_addr;
if (iw_event->status)
event = RDMA_CM_EVENT_REJECTED;
event.event = RDMA_CM_EVENT_REJECTED;
else
event = RDMA_CM_EVENT_ESTABLISHED;
event.event = RDMA_CM_EVENT_ESTABLISHED;
break;
case IW_CM_EVENT_ESTABLISHED:
event = RDMA_CM_EVENT_ESTABLISHED;
event.event = RDMA_CM_EVENT_ESTABLISHED;
break;
default:
BUG_ON(1);
}
ret = cma_notify_user(id_priv, event, iw_event->status,
iw_event->private_data,
iw_event->private_data_len);
event.status = iw_event->status;
event.param.conn.private_data = iw_event->private_data;
event.param.conn.private_data_len = iw_event->private_data_len;
ret = id_priv->id.event_handler(&id_priv->id, &event);
if (ret) {
/* Destroy the CM ID by returning a non-zero value. */
id_priv->cm_id.iw = NULL;
@ -1071,6 +1124,7 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id,
struct rdma_id_private *listen_id, *conn_id;
struct sockaddr_in *sin;
struct net_device *dev = NULL;
struct rdma_cm_event event;
int ret;
listen_id = cm_id->context;
@ -1124,9 +1178,11 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id,
sin = (struct sockaddr_in *) &new_cm_id->route.addr.dst_addr;
*sin = iw_event->remote_addr;
ret = cma_notify_user(conn_id, RDMA_CM_EVENT_CONNECT_REQUEST, 0,
iw_event->private_data,
iw_event->private_data_len);
memset(&event, 0, sizeof event);
event.event = RDMA_CM_EVENT_CONNECT_REQUEST;
event.param.conn.private_data = iw_event->private_data;
event.param.conn.private_data_len = iw_event->private_data_len;
ret = conn_id->id.event_handler(&conn_id->id, &event);
if (ret) {
/* User wants to destroy the CM ID */
conn_id->cm_id.iw = NULL;
@ -1515,8 +1571,9 @@ static void addr_handler(int status, struct sockaddr *src_addr,
struct rdma_dev_addr *dev_addr, void *context)
{
struct rdma_id_private *id_priv = context;
enum rdma_cm_event_type event;
struct rdma_cm_event event;
memset(&event, 0, sizeof event);
atomic_inc(&id_priv->dev_remove);
/*
@ -1536,14 +1593,15 @@ static void addr_handler(int status, struct sockaddr *src_addr,
if (status) {
if (!cma_comp_exch(id_priv, CMA_ADDR_RESOLVED, CMA_ADDR_BOUND))
goto out;
event = RDMA_CM_EVENT_ADDR_ERROR;
event.event = RDMA_CM_EVENT_ADDR_ERROR;
event.status = status;
} else {
memcpy(&id_priv->id.route.addr.src_addr, src_addr,
ip_addr_size(src_addr));
event = RDMA_CM_EVENT_ADDR_RESOLVED;
event.event = RDMA_CM_EVENT_ADDR_RESOLVED;
}
if (cma_notify_user(id_priv, event, status, NULL, 0)) {
if (id_priv->id.event_handler(&id_priv->id, &event)) {
cma_exch(id_priv, CMA_DESTROYING);
cma_release_remove(id_priv);
cma_deref_id(id_priv);
@ -1733,6 +1791,9 @@ static int cma_get_port(struct rdma_id_private *id_priv)
case RDMA_PS_TCP:
ps = &tcp_ps;
break;
case RDMA_PS_UDP:
ps = &udp_ps;
break;
default:
return -EPROTONOSUPPORT;
}
@ -1821,6 +1882,110 @@ static int cma_format_hdr(void *hdr, enum rdma_port_space ps,
return 0;
}
static int cma_sidr_rep_handler(struct ib_cm_id *cm_id,
struct ib_cm_event *ib_event)
{
struct rdma_id_private *id_priv = cm_id->context;
struct rdma_cm_event event;
struct ib_cm_sidr_rep_event_param *rep = &ib_event->param.sidr_rep_rcvd;
int ret = 0;
memset(&event, 0, sizeof event);
atomic_inc(&id_priv->dev_remove);
if (!cma_comp(id_priv, CMA_CONNECT))
goto out;
switch (ib_event->event) {
case IB_CM_SIDR_REQ_ERROR:
event.event = RDMA_CM_EVENT_UNREACHABLE;
event.status = -ETIMEDOUT;
break;
case IB_CM_SIDR_REP_RECEIVED:
event.param.ud.private_data = ib_event->private_data;
event.param.ud.private_data_len = IB_CM_SIDR_REP_PRIVATE_DATA_SIZE;
if (rep->status != IB_SIDR_SUCCESS) {
event.event = RDMA_CM_EVENT_UNREACHABLE;
event.status = ib_event->param.sidr_rep_rcvd.status;
break;
}
if (rep->qkey != RDMA_UD_QKEY) {
event.event = RDMA_CM_EVENT_UNREACHABLE;
event.status = -EINVAL;
break;
}
ib_init_ah_from_path(id_priv->id.device, id_priv->id.port_num,
id_priv->id.route.path_rec,
&event.param.ud.ah_attr);
event.param.ud.qp_num = rep->qpn;
event.param.ud.qkey = rep->qkey;
event.event = RDMA_CM_EVENT_ESTABLISHED;
event.status = 0;
break;
default:
printk(KERN_ERR "RDMA CMA: unexpected IB CM event: %d",
ib_event->event);
goto out;
}
ret = id_priv->id.event_handler(&id_priv->id, &event);
if (ret) {
/* Destroy the CM ID by returning a non-zero value. */
id_priv->cm_id.ib = NULL;
cma_exch(id_priv, CMA_DESTROYING);
cma_release_remove(id_priv);
rdma_destroy_id(&id_priv->id);
return ret;
}
out:
cma_release_remove(id_priv);
return ret;
}
static int cma_resolve_ib_udp(struct rdma_id_private *id_priv,
struct rdma_conn_param *conn_param)
{
struct ib_cm_sidr_req_param req;
struct rdma_route *route;
int ret;
req.private_data_len = sizeof(struct cma_hdr) +
conn_param->private_data_len;
req.private_data = kzalloc(req.private_data_len, GFP_ATOMIC);
if (!req.private_data)
return -ENOMEM;
if (conn_param->private_data && conn_param->private_data_len)
memcpy((void *) req.private_data + sizeof(struct cma_hdr),
conn_param->private_data, conn_param->private_data_len);
route = &id_priv->id.route;
ret = cma_format_hdr((void *) req.private_data, id_priv->id.ps, route);
if (ret)
goto out;
id_priv->cm_id.ib = ib_create_cm_id(id_priv->id.device,
cma_sidr_rep_handler, id_priv);
if (IS_ERR(id_priv->cm_id.ib)) {
ret = PTR_ERR(id_priv->cm_id.ib);
goto out;
}
req.path = route->path_rec;
req.service_id = cma_get_service_id(id_priv->id.ps,
&route->addr.dst_addr);
req.timeout_ms = 1 << (CMA_CM_RESPONSE_TIMEOUT - 8);
req.max_cm_retries = CMA_MAX_CM_RETRIES;
ret = ib_send_cm_sidr_req(id_priv->cm_id.ib, &req);
if (ret) {
ib_destroy_cm_id(id_priv->cm_id.ib);
id_priv->cm_id.ib = NULL;
}
out:
kfree(req.private_data);
return ret;
}
static int cma_connect_ib(struct rdma_id_private *id_priv,
struct rdma_conn_param *conn_param)
{
@ -1860,7 +2025,7 @@ static int cma_connect_ib(struct rdma_id_private *id_priv,
req.service_id = cma_get_service_id(id_priv->id.ps,
&route->addr.dst_addr);
req.qp_num = id_priv->qp_num;
req.qp_type = id_priv->qp_type;
req.qp_type = IB_QPT_RC;
req.starting_psn = id_priv->seq_num;
req.responder_resources = conn_param->responder_resources;
req.initiator_depth = conn_param->initiator_depth;
@ -1937,13 +2102,15 @@ int rdma_connect(struct rdma_cm_id *id, struct rdma_conn_param *conn_param)
if (!id->qp) {
id_priv->qp_num = conn_param->qp_num;
id_priv->qp_type = conn_param->qp_type;
id_priv->srq = conn_param->srq;
}
switch (rdma_node_get_transport(id->device->node_type)) {
case RDMA_TRANSPORT_IB:
ret = cma_connect_ib(id_priv, conn_param);
if (id->ps == RDMA_PS_UDP)
ret = cma_resolve_ib_udp(id_priv, conn_param);
else
ret = cma_connect_ib(id_priv, conn_param);
break;
case RDMA_TRANSPORT_IWARP:
ret = cma_connect_iw(id_priv, conn_param);
@ -1966,11 +2133,25 @@ static int cma_accept_ib(struct rdma_id_private *id_priv,
struct rdma_conn_param *conn_param)
{
struct ib_cm_rep_param rep;
int ret;
struct ib_qp_attr qp_attr;
int qp_attr_mask, ret;
ret = cma_modify_qp_rtr(&id_priv->id);
if (ret)
return ret;
if (id_priv->id.qp) {
ret = cma_modify_qp_rtr(&id_priv->id);
if (ret)
goto out;
qp_attr.qp_state = IB_QPS_RTS;
ret = ib_cm_init_qp_attr(id_priv->cm_id.ib, &qp_attr,
&qp_attr_mask);
if (ret)
goto out;
qp_attr.max_rd_atomic = conn_param->initiator_depth;
ret = ib_modify_qp(id_priv->id.qp, &qp_attr, qp_attr_mask);
if (ret)
goto out;
}
memset(&rep, 0, sizeof rep);
rep.qp_num = id_priv->qp_num;
@ -1985,7 +2166,9 @@ static int cma_accept_ib(struct rdma_id_private *id_priv,
rep.rnr_retry_count = conn_param->rnr_retry_count;
rep.srq = id_priv->srq ? 1 : 0;
return ib_send_cm_rep(id_priv->cm_id.ib, &rep);
ret = ib_send_cm_rep(id_priv->cm_id.ib, &rep);
out:
return ret;
}
static int cma_accept_iw(struct rdma_id_private *id_priv,
@ -2010,6 +2193,24 @@ static int cma_accept_iw(struct rdma_id_private *id_priv,
return iw_cm_accept(id_priv->cm_id.iw, &iw_param);
}
static int cma_send_sidr_rep(struct rdma_id_private *id_priv,
enum ib_cm_sidr_status status,
const void *private_data, int private_data_len)
{
struct ib_cm_sidr_rep_param rep;
memset(&rep, 0, sizeof rep);
rep.status = status;
if (status == IB_SIDR_SUCCESS) {
rep.qp_num = id_priv->qp_num;
rep.qkey = RDMA_UD_QKEY;
}
rep.private_data = private_data;
rep.private_data_len = private_data_len;
return ib_send_cm_sidr_rep(id_priv->cm_id.ib, &rep);
}
int rdma_accept(struct rdma_cm_id *id, struct rdma_conn_param *conn_param)
{
struct rdma_id_private *id_priv;
@ -2021,13 +2222,16 @@ int rdma_accept(struct rdma_cm_id *id, struct rdma_conn_param *conn_param)
if (!id->qp && conn_param) {
id_priv->qp_num = conn_param->qp_num;
id_priv->qp_type = conn_param->qp_type;
id_priv->srq = conn_param->srq;
}
switch (rdma_node_get_transport(id->device->node_type)) {
case RDMA_TRANSPORT_IB:
if (conn_param)
if (id->ps == RDMA_PS_UDP)
ret = cma_send_sidr_rep(id_priv, IB_SIDR_SUCCESS,
conn_param->private_data,
conn_param->private_data_len);
else if (conn_param)
ret = cma_accept_ib(id_priv, conn_param);
else
ret = cma_rep_recv(id_priv);
@ -2051,6 +2255,27 @@ reject:
}
EXPORT_SYMBOL(rdma_accept);
int rdma_notify(struct rdma_cm_id *id, enum ib_event_type event)
{
struct rdma_id_private *id_priv;
int ret;
id_priv = container_of(id, struct rdma_id_private, id);
if (!cma_comp(id_priv, CMA_CONNECT))
return -EINVAL;
switch (id->device->node_type) {
case RDMA_NODE_IB_CA:
ret = ib_cm_notify(id_priv->cm_id.ib, event);
break;
default:
ret = 0;
break;
}
return ret;
}
EXPORT_SYMBOL(rdma_notify);
int rdma_reject(struct rdma_cm_id *id, const void *private_data,
u8 private_data_len)
{
@ -2063,9 +2288,13 @@ int rdma_reject(struct rdma_cm_id *id, const void *private_data,
switch (rdma_node_get_transport(id->device->node_type)) {
case RDMA_TRANSPORT_IB:
ret = ib_send_cm_rej(id_priv->cm_id.ib,
IB_CM_REJ_CONSUMER_DEFINED, NULL, 0,
private_data, private_data_len);
if (id->ps == RDMA_PS_UDP)
ret = cma_send_sidr_rep(id_priv, IB_SIDR_REJECT,
private_data, private_data_len);
else
ret = ib_send_cm_rej(id_priv->cm_id.ib,
IB_CM_REJ_CONSUMER_DEFINED, NULL,
0, private_data, private_data_len);
break;
case RDMA_TRANSPORT_IWARP:
ret = iw_cm_reject(id_priv->cm_id.iw,
@ -2136,6 +2365,7 @@ static void cma_add_one(struct ib_device *device)
static int cma_remove_id_dev(struct rdma_id_private *id_priv)
{
struct rdma_cm_event event;
enum cma_state state;
/* Record that we want to remove the device */
@ -2150,8 +2380,9 @@ static int cma_remove_id_dev(struct rdma_id_private *id_priv)
if (!cma_comp(id_priv, CMA_DEVICE_REMOVAL))
return 0;
return cma_notify_user(id_priv, RDMA_CM_EVENT_DEVICE_REMOVAL,
0, NULL, 0);
memset(&event, 0, sizeof event);
event.event = RDMA_CM_EVENT_DEVICE_REMOVAL;
return id_priv->id.event_handler(&id_priv->id, &event);
}
static void cma_process_remove(struct cma_device *cma_dev)
@ -2233,6 +2464,7 @@ static void cma_cleanup(void)
destroy_workqueue(cma_wq);
idr_destroy(&sdp_ps);
idr_destroy(&tcp_ps);
idr_destroy(&udp_ps);
}
module_init(cma_init);

12
drivers/infiniband/core/fmr_pool.c
View File

@ -394,20 +394,12 @@ EXPORT_SYMBOL(ib_destroy_fmr_pool);
*/
int ib_flush_fmr_pool(struct ib_fmr_pool *pool)
{
int serial;
atomic_inc(&pool->req_ser);
/*
* It's OK if someone else bumps req_ser again here -- we'll
* just wait a little longer.
*/
serial = atomic_read(&pool->req_ser);
int serial = atomic_inc_return(&pool->req_ser);
wake_up_process(pool->thread);
if (wait_event_interruptible(pool->force_wait,
atomic_read(&pool->flush_ser) -
atomic_read(&pool->req_ser) >= 0))
atomic_read(&pool->flush_ser) - serial >= 0))
return -EINTR;
return 0;

88
drivers/infiniband/core/mad.c
View File

@ -998,17 +998,17 @@ int ib_send_mad(struct ib_mad_send_wr_private *mad_send_wr)
mad_agent = mad_send_wr->send_buf.mad_agent;
sge = mad_send_wr->sg_list;
sge[0].addr = dma_map_single(mad_agent->device->dma_device,
mad_send_wr->send_buf.mad,
sge[0].length,
DMA_TO_DEVICE);
pci_unmap_addr_set(mad_send_wr, header_mapping, sge[0].addr);
sge[0].addr = ib_dma_map_single(mad_agent->device,
mad_send_wr->send_buf.mad,
sge[0].length,
DMA_TO_DEVICE);
mad_send_wr->header_mapping = sge[0].addr;
sge[1].addr = dma_map_single(mad_agent->device->dma_device,
ib_get_payload(mad_send_wr),
sge[1].length,
DMA_TO_DEVICE);
pci_unmap_addr_set(mad_send_wr, payload_mapping, sge[1].addr);
sge[1].addr = ib_dma_map_single(mad_agent->device,
ib_get_payload(mad_send_wr),
sge[1].length,
DMA_TO_DEVICE);
mad_send_wr->payload_mapping = sge[1].addr;
spin_lock_irqsave(&qp_info->send_queue.lock, flags);
if (qp_info->send_queue.count < qp_info->send_queue.max_active) {
@ -1026,12 +1026,12 @@ int ib_send_mad(struct ib_mad_send_wr_private *mad_send_wr)
}
spin_unlock_irqrestore(&qp_info->send_queue.lock, flags);
if (ret) {
dma_unmap_single(mad_agent->device->dma_device,
pci_unmap_addr(mad_send_wr, header_mapping),
sge[0].length, DMA_TO_DEVICE);
dma_unmap_single(mad_agent->device->dma_device,
pci_unmap_addr(mad_send_wr, payload_mapping),
sge[1].length, DMA_TO_DEVICE);
ib_dma_unmap_single(mad_agent->device,
mad_send_wr->header_mapping,
sge[0].length, DMA_TO_DEVICE);
ib_dma_unmap_single(mad_agent->device,
mad_send_wr->payload_mapping,
sge[1].length, DMA_TO_DEVICE);
}
return ret;
}
@ -1850,11 +1850,11 @@ static void ib_mad_recv_done_handler(struct ib_mad_port_private *port_priv,
mad_priv_hdr = container_of(mad_list, struct ib_mad_private_header,
mad_list);
recv = container_of(mad_priv_hdr, struct ib_mad_private, header);
dma_unmap_single(port_priv->device->dma_device,
pci_unmap_addr(&recv->header, mapping),
sizeof(struct ib_mad_private) -
sizeof(struct ib_mad_private_header),
DMA_FROM_DEVICE);
ib_dma_unmap_single(port_priv->device,
recv->header.mapping,
sizeof(struct ib_mad_private) -
sizeof(struct ib_mad_private_header),
DMA_FROM_DEVICE);
/* Setup MAD receive work completion from "normal" work completion */
recv->header.wc = *wc;
@ -2080,12 +2080,12 @@ static void ib_mad_send_done_handler(struct ib_mad_port_private *port_priv,
qp_info = send_queue->qp_info;
retry:
dma_unmap_single(mad_send_wr->send_buf.mad_agent->device->dma_device,
pci_unmap_addr(mad_send_wr, header_mapping),
mad_send_wr->sg_list[0].length, DMA_TO_DEVICE);
dma_unmap_single(mad_send_wr->send_buf.mad_agent->device->dma_device,
pci_unmap_addr(mad_send_wr, payload_mapping),
mad_send_wr->sg_list[1].length, DMA_TO_DEVICE);
ib_dma_unmap_single(mad_send_wr->send_buf.mad_agent->device,
mad_send_wr->header_mapping,
mad_send_wr->sg_list[0].length, DMA_TO_DEVICE);
ib_dma_unmap_single(mad_send_wr->send_buf.mad_agent->device,
mad_send_wr->payload_mapping,
mad_send_wr->sg_list[1].length, DMA_TO_DEVICE);
queued_send_wr = NULL;
spin_lock_irqsave(&send_queue->lock, flags);
list_del(&mad_list->list);
@ -2528,13 +2528,12 @@ static int ib_mad_post_receive_mads(struct ib_mad_qp_info *qp_info,
break;
}
}
sg_list.addr = dma_map_single(qp_info->port_priv->
device->dma_device,
&mad_priv->grh,
sizeof *mad_priv -
sizeof mad_priv->header,
DMA_FROM_DEVICE);
pci_unmap_addr_set(&mad_priv->header, mapping, sg_list.addr);
sg_list.addr = ib_dma_map_single(qp_info->port_priv->device,
&mad_priv->grh,
sizeof *mad_priv -
sizeof mad_priv->header,
DMA_FROM_DEVICE);
mad_priv->header.mapping = sg_list.addr;
recv_wr.wr_id = (unsigned long)&mad_priv->header.mad_list;
mad_priv->header.mad_list.mad_queue = recv_queue;
@ -2549,12 +2548,11 @@ static int ib_mad_post_receive_mads(struct ib_mad_qp_info *qp_info,
list_del(&mad_priv->header.mad_list.list);
recv_queue->count--;
spin_unlock_irqrestore(&recv_queue->lock, flags);
dma_unmap_single(qp_info->port_priv->device->dma_device,
pci_unmap_addr(&mad_priv->header,
mapping),
sizeof *mad_priv -
sizeof mad_priv->header,
DMA_FROM_DEVICE);
ib_dma_unmap_single(qp_info->port_priv->device,
mad_priv->header.mapping,
sizeof *mad_priv -
sizeof mad_priv->header,
DMA_FROM_DEVICE);
kmem_cache_free(ib_mad_cache, mad_priv);
printk(KERN_ERR PFX "ib_post_recv failed: %d\n", ret);
break;
@ -2586,11 +2584,11 @@ static void cleanup_recv_queue(struct ib_mad_qp_info *qp_info)
/* Remove from posted receive MAD list */
list_del(&mad_list->list);
dma_unmap_single(qp_info->port_priv->device->dma_device,
pci_unmap_addr(&recv->header, mapping),
sizeof(struct ib_mad_private) -
sizeof(struct ib_mad_private_header),
DMA_FROM_DEVICE);
ib_dma_unmap_single(qp_info->port_priv->device,
recv->header.mapping,
sizeof(struct ib_mad_private) -
sizeof(struct ib_mad_private_header),
DMA_FROM_DEVICE);
kmem_cache_free(ib_mad_cache, recv);
}

6
drivers/infiniband/core/mad_priv.h
View File

@ -73,7 +73,7 @@ struct ib_mad_private_header {
struct ib_mad_list_head mad_list;
struct ib_mad_recv_wc recv_wc;
struct ib_wc wc;
DECLARE_PCI_UNMAP_ADDR(mapping)
u64 mapping;
} __attribute__ ((packed));
struct ib_mad_private {
@ -126,8 +126,8 @@ struct ib_mad_send_wr_private {
struct list_head agent_list;
struct ib_mad_agent_private *mad_agent_priv;
struct ib_mad_send_buf send_buf;
DECLARE_PCI_UNMAP_ADDR(header_mapping)
DECLARE_PCI_UNMAP_ADDR(payload_mapping)
u64 header_mapping;
u64 payload_mapping;
struct ib_send_wr send_wr;
struct ib_sge sg_list[IB_MAD_SEND_REQ_MAX_SG];
__be64 tid;

874
drivers/infiniband/core/ucma.c Normal file
View File

@ -0,0 +1,874 @@
/*
* Copyright (c) 2005-2006 Intel Corporation. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <linux/completion.h>
#include <linux/mutex.h>
#include <linux/poll.h>
#include <linux/idr.h>
#include <linux/in.h>
#include <linux/in6.h>
#include <linux/miscdevice.h>
#include <rdma/rdma_user_cm.h>
#include <rdma/ib_marshall.h>
#include <rdma/rdma_cm.h>
MODULE_AUTHOR("Sean Hefty");
MODULE_DESCRIPTION("RDMA Userspace Connection Manager Access");
MODULE_LICENSE("Dual BSD/GPL");
enum {
UCMA_MAX_BACKLOG = 128
};
struct ucma_file {
struct mutex mut;
struct file *filp;
struct list_head ctx_list;
struct list_head event_list;
wait_queue_head_t poll_wait;
};
struct ucma_context {
int id;
struct completion comp;
atomic_t ref;
int events_reported;
int backlog;
struct ucma_file *file;
struct rdma_cm_id *cm_id;
u64 uid;
struct list_head list;
};
struct ucma_event {
struct ucma_context *ctx;
struct list_head list;
struct rdma_cm_id *cm_id;
struct rdma_ucm_event_resp resp;
};
static DEFINE_MUTEX(mut);
static DEFINE_IDR(ctx_idr);
static inline struct ucma_context *_ucma_find_context(int id,
struct ucma_file *file)
{
struct ucma_context *ctx;
ctx = idr_find(&ctx_idr, id);
if (!ctx)
ctx = ERR_PTR(-ENOENT);
else if (ctx->file != file)
ctx = ERR_PTR(-EINVAL);
return ctx;
}
static struct ucma_context *ucma_get_ctx(struct ucma_file *file, int id)
{
struct ucma_context *ctx;
mutex_lock(&mut);
ctx = _ucma_find_context(id, file);
if (!IS_ERR(ctx))
atomic_inc(&ctx->ref);
mutex_unlock(&mut);
return ctx;
}
static void ucma_put_ctx(struct ucma_context *ctx)
{
if (atomic_dec_and_test(&ctx->ref))
complete(&ctx->comp);
}
static struct ucma_context *ucma_alloc_ctx(struct ucma_file *file)
{
struct ucma_context *ctx;
int ret;
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
if (!ctx)
return NULL;
atomic_set(&ctx->ref, 1);
init_completion(&ctx->comp);
ctx->file = file;
do {
ret = idr_pre_get(&ctx_idr, GFP_KERNEL);
if (!ret)
goto error;
mutex_lock(&mut);
ret = idr_get_new(&ctx_idr, ctx, &ctx->id);
mutex_unlock(&mut);
} while (ret == -EAGAIN);
if (ret)
goto error;
list_add_tail(&ctx->list, &file->ctx_list);
return ctx;
error:
kfree(ctx);
return NULL;
}
static void ucma_copy_conn_event(struct rdma_ucm_conn_param *dst,
struct rdma_conn_param *src)
{
if (src->private_data_len)
memcpy(dst->private_data, src->private_data,
src->private_data_len);
dst->private_data_len = src->private_data_len;
dst->responder_resources =src->responder_resources;
dst->initiator_depth = src->initiator_depth;
dst->flow_control = src->flow_control;
dst->retry_count = src->retry_count;
dst->rnr_retry_count = src->rnr_retry_count;
dst->srq = src->srq;
dst->qp_num = src->qp_num;
}
static void ucma_copy_ud_event(struct rdma_ucm_ud_param *dst,
struct rdma_ud_param *src)
{
if (src->private_data_len)
memcpy(dst->private_data, src->private_data,
src->private_data_len);
dst->private_data_len = src->private_data_len;
ib_copy_ah_attr_to_user(&dst->ah_attr, &src->ah_attr);
dst->qp_num = src->qp_num;
dst->qkey = src->qkey;
}
static void ucma_set_event_context(struct ucma_context *ctx,
struct rdma_cm_event *event,
struct ucma_event *uevent)
{
uevent->ctx = ctx;
uevent->resp.uid = ctx->uid;
uevent->resp.id = ctx->id;
}
static int ucma_event_handler(struct rdma_cm_id *cm_id,
struct rdma_cm_event *event)
{
struct ucma_event *uevent;
struct ucma_context *ctx = cm_id->context;
int ret = 0;
uevent = kzalloc(sizeof(*uevent), GFP_KERNEL);
if (!uevent)
return event->event == RDMA_CM_EVENT_CONNECT_REQUEST;
uevent->cm_id = cm_id;
ucma_set_event_context(ctx, event, uevent);
uevent->resp.event = event->event;
uevent->resp.status = event->status;
if (cm_id->ps == RDMA_PS_UDP)
ucma_copy_ud_event(&uevent->resp.param.ud, &event->param.ud);
else
ucma_copy_conn_event(&uevent->resp.param.conn,
&event->param.conn);
mutex_lock(&ctx->file->mut);
if (event->event == RDMA_CM_EVENT_CONNECT_REQUEST) {
if (!ctx->backlog) {
ret = -EDQUOT;
goto out;
}
ctx->backlog--;
}
list_add_tail(&uevent->list, &ctx->file->event_list);
wake_up_interruptible(&ctx->file->poll_wait);
out:
mutex_unlock(&ctx->file->mut);
return ret;
}
static ssize_t ucma_get_event(struct ucma_file *file, const char __user *inbuf,
int in_len, int out_len)
{
struct ucma_context *ctx;
struct rdma_ucm_get_event cmd;
struct ucma_event *uevent;
int ret = 0;
DEFINE_WAIT(wait);
if (out_len < sizeof uevent->resp)
return -ENOSPC;
if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
return -EFAULT;
mutex_lock(&file->mut);
while (list_empty(&file->event_list)) {
if (file->filp->f_flags & O_NONBLOCK) {
ret = -EAGAIN;
break;
}
if (signal_pending(current)) {
ret = -ERESTARTSYS;
break;
}
prepare_to_wait(&file->poll_wait, &wait, TASK_INTERRUPTIBLE);
mutex_unlock(&file->mut);
schedule();
mutex_lock(&file->mut);
finish_wait(&file->poll_wait, &wait);
}
if (ret)
goto done;
uevent = list_entry(file->event_list.next, struct ucma_event, list);
if (uevent->resp.event == RDMA_CM_EVENT_CONNECT_REQUEST) {
ctx = ucma_alloc_ctx(file);
if (!ctx) {
ret = -ENOMEM;
goto done;
}
uevent->ctx->backlog++;
ctx->cm_id = uevent->cm_id;
ctx->cm_id->context = ctx;
uevent->resp.id = ctx->id;
}
if (copy_to_user((void __user *)(unsigned long)cmd.response,
&uevent->resp, sizeof uevent->resp)) {
ret = -EFAULT;
goto done;
}
list_del(&uevent->list);
uevent->ctx->events_reported++;
kfree(uevent);
done:
mutex_unlock(&file->mut);
return ret;
}
static ssize_t ucma_create_id(struct ucma_file *file,
const char __user *inbuf,
int in_len, int out_len)
{
struct rdma_ucm_create_id cmd;
struct rdma_ucm_create_id_resp resp;
struct ucma_context *ctx;
int ret;
if (out_len < sizeof(resp))
return -ENOSPC;
if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
return -EFAULT;
mutex_lock(&file->mut);
ctx = ucma_alloc_ctx(file);
mutex_unlock(&file->mut);
if (!ctx)
return -ENOMEM;
ctx->uid = cmd.uid;
ctx->cm_id = rdma_create_id(ucma_event_handler, ctx, cmd.ps);
if (IS_ERR(ctx->cm_id)) {
ret = PTR_ERR(ctx->cm_id);
goto err1;
}
resp.id = ctx->id;
if (copy_to_user((void __user *)(unsigned long)cmd.response,
&resp, sizeof(resp))) {
ret = -EFAULT;
goto err2;
}
return 0;
err2:
rdma_destroy_id(ctx->cm_id);
err1:
mutex_lock(&mut);
idr_remove(&ctx_idr, ctx->id);
mutex_unlock(&mut);
kfree(ctx);
return ret;
}
static void ucma_cleanup_events(struct ucma_context *ctx)
{
struct ucma_event *uevent, *tmp;
list_for_each_entry_safe(uevent, tmp, &ctx->file->event_list, list) {
if (uevent->ctx != ctx)
continue;
list_del(&uevent->list);
/* clear incoming connections. */
if (uevent->resp.event == RDMA_CM_EVENT_CONNECT_REQUEST)
rdma_destroy_id(uevent->cm_id);
kfree(uevent);
}
}
static int ucma_free_ctx(struct ucma_context *ctx)
{
int events_reported;
/* No new events will be generated after destroying the id. */
rdma_destroy_id(ctx->cm_id);
/* Cleanup events not yet reported to the user. */
mutex_lock(&ctx->file->mut);
ucma_cleanup_events(ctx);
list_del(&ctx->list);
mutex_unlock(&ctx->file->mut);
events_reported = ctx->events_reported;
kfree(ctx);
return events_reported;
}
static ssize_t ucma_destroy_id(struct ucma_file *file, const char __user *inbuf,
int in_len, int out_len)
{
struct rdma_ucm_destroy_id cmd;
struct rdma_ucm_destroy_id_resp resp;
struct ucma_context *ctx;
int ret = 0;
if (out_len < sizeof(resp))
return -ENOSPC;
if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
return -EFAULT;
mutex_lock(&mut);
ctx = _ucma_find_context(cmd.id, file);
if (!IS_ERR(ctx))
idr_remove(&ctx_idr, ctx->id);
mutex_unlock(&mut);
if (IS_ERR(ctx))
return PTR_ERR(ctx);
ucma_put_ctx(ctx);
wait_for_completion(&ctx->comp);
resp.events_reported = ucma_free_ctx(ctx);
if (copy_to_user((void __user *)(unsigned long)cmd.response,
&resp, sizeof(resp)))
ret = -EFAULT;
return ret;
}
static ssize_t ucma_bind_addr(struct ucma_file *file, const char __user *inbuf,
int in_len, int out_len)
{
struct rdma_ucm_bind_addr cmd;
struct ucma_context *ctx;
int ret;
if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
return -EFAULT;
ctx = ucma_get_ctx(file, cmd.id);
if (IS_ERR(ctx))
return PTR_ERR(ctx);
ret = rdma_bind_addr(ctx->cm_id, (struct sockaddr *) &cmd.addr);
ucma_put_ctx(ctx);
return ret;
}
static ssize_t ucma_resolve_addr(struct ucma_file *file,
const char __user *inbuf,
int in_len, int out_len)
{
struct rdma_ucm_resolve_addr cmd;
struct ucma_context *ctx;
int ret;
if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
return -EFAULT;
ctx = ucma_get_ctx(file, cmd.id);
if (IS_ERR(ctx))
return PTR_ERR(ctx);
ret = rdma_resolve_addr(ctx->cm_id, (struct sockaddr *) &cmd.src_addr,
(struct sockaddr *) &cmd.dst_addr,
cmd.timeout_ms);
ucma_put_ctx(ctx);
return ret;
}
static ssize_t ucma_resolve_route(struct ucma_file *file,
const char __user *inbuf,
int in_len, int out_len)
{
struct rdma_ucm_resolve_route cmd;
struct ucma_context *ctx;
int ret;
if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
return -EFAULT;
ctx = ucma_get_ctx(file, cmd.id);
if (IS_ERR(ctx))
return PTR_ERR(ctx);
ret = rdma_resolve_route(ctx->cm_id, cmd.timeout_ms);
ucma_put_ctx(ctx);
return ret;
}
static void ucma_copy_ib_route(struct rdma_ucm_query_route_resp *resp,
struct rdma_route *route)
{
struct rdma_dev_addr *dev_addr;
resp->num_paths = route->num_paths;
switch (route->num_paths) {
case 0:
dev_addr = &route->addr.dev_addr;
ib_addr_get_dgid(dev_addr,
(union ib_gid *) &resp->ib_route[0].dgid);
ib_addr_get_sgid(dev_addr,
(union ib_gid *) &resp->ib_route[0].sgid);
resp->ib_route[0].pkey = cpu_to_be16(ib_addr_get_pkey(dev_addr));
break;
case 2:
ib_copy_path_rec_to_user(&resp->ib_route[1],
&route->path_rec[1]);
/* fall through */
case 1:
ib_copy_path_rec_to_user(&resp->ib_route[0],
&route->path_rec[0]);
break;
default:
break;
}
}
static ssize_t ucma_query_route(struct ucma_file *file,
const char __user *inbuf,
int in_len, int out_len)
{
struct rdma_ucm_query_route cmd;
struct rdma_ucm_query_route_resp resp;
struct ucma_context *ctx;
struct sockaddr *addr;
int ret = 0;
if (out_len < sizeof(resp))
return -ENOSPC;
if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
return -EFAULT;
ctx = ucma_get_ctx(file, cmd.id);
if (IS_ERR(ctx))
return PTR_ERR(ctx);
memset(&resp, 0, sizeof resp);
addr = &ctx->cm_id->route.addr.src_addr;
memcpy(&resp.src_addr, addr, addr->sa_family == AF_INET ?
sizeof(struct sockaddr_in) :
sizeof(struct sockaddr_in6));
addr = &ctx->cm_id->route.addr.dst_addr;
memcpy(&resp.dst_addr, addr, addr->sa_family == AF_INET ?
sizeof(struct sockaddr_in) :
sizeof(struct sockaddr_in6));
if (!ctx->cm_id->device)
goto out;
resp.node_guid = ctx->cm_id->device->node_guid;
resp.port_num = ctx->cm_id->port_num;
switch (rdma_node_get_transport(ctx->cm_id->device->node_type)) {
case RDMA_TRANSPORT_IB:
ucma_copy_ib_route(&resp, &ctx->cm_id->route);
break;
default:
break;
}
out:
if (copy_to_user((void __user *)(unsigned long)cmd.response,
&resp, sizeof(resp)))
ret = -EFAULT;
ucma_put_ctx(ctx);
return ret;
}
static void ucma_copy_conn_param(struct rdma_conn_param *dst,
struct rdma_ucm_conn_param *src)
{
dst->private_data = src->private_data;
dst->private_data_len = src->private_data_len;
dst->responder_resources =src->responder_resources;
dst->initiator_depth = src->initiator_depth;
dst->flow_control = src->flow_control;
dst->retry_count = src->retry_count;
dst->rnr_retry_count = src->rnr_retry_count;
dst->srq = src->srq;
dst->qp_num = src->qp_num;
}
static ssize_t ucma_connect(struct ucma_file *file, const char __user *inbuf,
int in_len, int out_len)
{
struct rdma_ucm_connect cmd;
struct rdma_conn_param conn_param;
struct ucma_context *ctx;
int ret;
if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
return -EFAULT;
if (!cmd.conn_param.valid)
return -EINVAL;
ctx = ucma_get_ctx(file, cmd.id);
if (IS_ERR(ctx))
return PTR_ERR(ctx);
ucma_copy_conn_param(&conn_param, &cmd.conn_param);
ret = rdma_connect(ctx->cm_id, &conn_param);
ucma_put_ctx(ctx);
return ret;
}
static ssize_t ucma_listen(struct ucma_file *file, const char __user *inbuf,
int in_len, int out_len)
{
struct rdma_ucm_listen cmd;
struct ucma_context *ctx;
int ret;
if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
return -EFAULT;
ctx = ucma_get_ctx(file, cmd.id);
if (IS_ERR(ctx))
return PTR_ERR(ctx);
ctx->backlog = cmd.backlog > 0 && cmd.backlog < UCMA_MAX_BACKLOG ?
cmd.backlog : UCMA_MAX_BACKLOG;
ret = rdma_listen(ctx->cm_id, ctx->backlog);
ucma_put_ctx(ctx);
return ret;
}
static ssize_t ucma_accept(struct ucma_file *file, const char __user *inbuf,
int in_len, int out_len)
{
struct rdma_ucm_accept cmd;
struct rdma_conn_param conn_param;
struct ucma_context *ctx;
int ret;
if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
return -EFAULT;
ctx = ucma_get_ctx(file, cmd.id);
if (IS_ERR(ctx))
return PTR_ERR(ctx);
if (cmd.conn_param.valid) {
ctx->uid = cmd.uid;
ucma_copy_conn_param(&conn_param, &cmd.conn_param);
ret = rdma_accept(ctx->cm_id, &conn_param);
} else
ret = rdma_accept(ctx->cm_id, NULL);
ucma_put_ctx(ctx);
return ret;
}
static ssize_t ucma_reject(struct ucma_file *file, const char __user *inbuf,
int in_len, int out_len)
{
struct rdma_ucm_reject cmd;
struct ucma_context *ctx;
int ret;
if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
return -EFAULT;
ctx = ucma_get_ctx(file, cmd.id);
if (IS_ERR(ctx))
return PTR_ERR(ctx);
ret = rdma_reject(ctx->cm_id, cmd.private_data, cmd.private_data_len);
ucma_put_ctx(ctx);
return ret;
}
static ssize_t ucma_disconnect(struct ucma_file *file, const char __user *inbuf,
int in_len, int out_len)
{
struct rdma_ucm_disconnect cmd;
struct ucma_context *ctx;
int ret;
if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
return -EFAULT;
ctx = ucma_get_ctx(file, cmd.id);
if (IS_ERR(ctx))
return PTR_ERR(ctx);
ret = rdma_disconnect(ctx->cm_id);
ucma_put_ctx(ctx);
return ret;
}
static ssize_t ucma_init_qp_attr(struct ucma_file *file,
const char __user *inbuf,
int in_len, int out_len)
{
struct rdma_ucm_init_qp_attr cmd;
struct ib_uverbs_qp_attr resp;
struct ucma_context *ctx;
struct ib_qp_attr qp_attr;
int ret;
if (out_len < sizeof(resp))
return -ENOSPC;
if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
return -EFAULT;
ctx = ucma_get_ctx(file, cmd.id);
if (IS_ERR(ctx))
return PTR_ERR(ctx);
resp.qp_attr_mask = 0;
memset(&qp_attr, 0, sizeof qp_attr);
qp_attr.qp_state = cmd.qp_state;
ret = rdma_init_qp_attr(ctx->cm_id, &qp_attr, &resp.qp_attr_mask);
if (ret)
goto out;
ib_copy_qp_attr_to_user(&resp, &qp_attr);
if (copy_to_user((void __user *)(unsigned long)cmd.response,
&resp, sizeof(resp)))
ret = -EFAULT;
out:
ucma_put_ctx(ctx);
return ret;
}
static ssize_t ucma_notify(struct ucma_file *file, const char __user *inbuf,
int in_len, int out_len)
{
struct rdma_ucm_notify cmd;
struct ucma_context *ctx;
int ret;
if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
return -EFAULT;
ctx = ucma_get_ctx(file, cmd.id);
if (IS_ERR(ctx))
return PTR_ERR(ctx);
ret = rdma_notify(ctx->cm_id, (enum ib_event_type) cmd.event);
ucma_put_ctx(ctx);
return ret;
}
static ssize_t (*ucma_cmd_table[])(struct ucma_file *file,
const char __user *inbuf,
int in_len, int out_len) = {
[RDMA_USER_CM_CMD_CREATE_ID] = ucma_create_id,
[RDMA_USER_CM_CMD_DESTROY_ID] = ucma_destroy_id,
[RDMA_USER_CM_CMD_BIND_ADDR] = ucma_bind_addr,
[RDMA_USER_CM_CMD_RESOLVE_ADDR] = ucma_resolve_addr,
[RDMA_USER_CM_CMD_RESOLVE_ROUTE]= ucma_resolve_route,
[RDMA_USER_CM_CMD_QUERY_ROUTE] = ucma_query_route,
[RDMA_USER_CM_CMD_CONNECT] = ucma_connect,
[RDMA_USER_CM_CMD_LISTEN] = ucma_listen,
[RDMA_USER_CM_CMD_ACCEPT] = ucma_accept,
[RDMA_USER_CM_CMD_REJECT] = ucma_reject,
[RDMA_USER_CM_CMD_DISCONNECT] = ucma_disconnect,
[RDMA_USER_CM_CMD_INIT_QP_ATTR] = ucma_init_qp_attr,
[RDMA_USER_CM_CMD_GET_EVENT] = ucma_get_event,
[RDMA_USER_CM_CMD_GET_OPTION] = NULL,
[RDMA_USER_CM_CMD_SET_OPTION] = NULL,
[RDMA_USER_CM_CMD_NOTIFY] = ucma_notify,
};
static ssize_t ucma_write(struct file *filp, const char __user *buf,
size_t len, loff_t *pos)
{
struct ucma_file *file = filp->private_data;
struct rdma_ucm_cmd_hdr hdr;
ssize_t ret;
if (len < sizeof(hdr))
return -EINVAL;
if (copy_from_user(&hdr, buf, sizeof(hdr)))
return -EFAULT;
if (hdr.cmd < 0 || hdr.cmd >= ARRAY_SIZE(ucma_cmd_table))
return -EINVAL;
if (hdr.in + sizeof(hdr) > len)
return -EINVAL;
if (!ucma_cmd_table[hdr.cmd])
return -ENOSYS;
ret = ucma_cmd_table[hdr.cmd](file, buf + sizeof(hdr), hdr.in, hdr.out);
if (!ret)
ret = len;
return ret;
}
static unsigned int ucma_poll(struct file *filp, struct poll_table_struct *wait)
{
struct ucma_file *file = filp->private_data;
unsigned int mask = 0;
poll_wait(filp, &file->poll_wait, wait);
if (!list_empty(&file->event_list))
mask = POLLIN | POLLRDNORM;
return mask;
}
static int ucma_open(struct inode *inode, struct file *filp)
{
struct ucma_file *file;
file = kmalloc(sizeof *file, GFP_KERNEL);
if (!file)
return -ENOMEM;
INIT_LIST_HEAD(&file->event_list);
INIT_LIST_HEAD(&file->ctx_list);
init_waitqueue_head(&file->poll_wait);
mutex_init(&file->mut);
filp->private_data = file;
file->filp = filp;
return 0;
}
static int ucma_close(struct inode *inode, struct file *filp)
{
struct ucma_file *file = filp->private_data;
struct ucma_context *ctx, *tmp;
mutex_lock(&file->mut);
list_for_each_entry_safe(ctx, tmp, &file->ctx_list, list) {
mutex_unlock(&file->mut);
mutex_lock(&mut);
idr_remove(&ctx_idr, ctx->id);
mutex_unlock(&mut);
ucma_free_ctx(ctx);
mutex_lock(&file->mut);
}
mutex_unlock(&file->mut);
kfree(file);
return 0;
}
static struct file_operations ucma_fops = {
.owner = THIS_MODULE,
.open = ucma_open,
.release = ucma_close,
.write = ucma_write,
.poll = ucma_poll,
};
static struct miscdevice ucma_misc = {
.minor = MISC_DYNAMIC_MINOR,
.name = "rdma_cm",
.fops = &ucma_fops,
};
static ssize_t show_abi_version(struct device *dev,
struct device_attribute *attr,
char *buf)
{
return sprintf(buf, "%d\n", RDMA_USER_CM_ABI_VERSION);
}
static DEVICE_ATTR(abi_version, S_IRUGO, show_abi_version, NULL);
static int __init ucma_init(void)
{
int ret;
ret = misc_register(&ucma_misc);
if (ret)
return ret;
ret = device_create_file(ucma_misc.this_device, &dev_attr_abi_version);
if (ret) {
printk(KERN_ERR "rdma_ucm: couldn't create abi_version attr\n");
goto err;
}
return 0;
err:
misc_deregister(&ucma_misc);
return ret;
}
static void __exit ucma_cleanup(void)
{
device_remove_file(ucma_misc.this_device, &dev_attr_abi_version);
misc_deregister(&ucma_misc);
idr_destroy(&ctx_idr);
}
module_init(ucma_init);
module_exit(ucma_cleanup);

5
drivers/infiniband/core/uverbs_marshall.c
View File

@ -32,8 +32,8 @@
#include <rdma/ib_marshall.h>
static void ib_copy_ah_attr_to_user(struct ib_uverbs_ah_attr *dst,
struct ib_ah_attr *src)
void ib_copy_ah_attr_to_user(struct ib_uverbs_ah_attr *dst,
struct ib_ah_attr *src)
{
memcpy(dst->grh.dgid, src->grh.dgid.raw, sizeof src->grh.dgid);
dst->grh.flow_label = src->grh.flow_label;
@ -47,6 +47,7 @@ static void ib_copy_ah_attr_to_user(struct ib_uverbs_ah_attr *dst,
dst->is_global = src->ah_flags & IB_AH_GRH ? 1 : 0;
dst->port_num = src->port_num;
}
EXPORT_SYMBOL(ib_copy_ah_attr_to_user);
void ib_copy_qp_attr_to_user(struct ib_uverbs_qp_attr *dst,
struct ib_qp_attr *src)

12
drivers/infiniband/core/uverbs_mem.c
View File

@ -52,8 +52,8 @@ static void __ib_umem_release(struct ib_device *dev, struct ib_umem *umem, int d
int i;
list_for_each_entry_safe(chunk, tmp, &umem->chunk_list, list) {
dma_unmap_sg(dev->dma_device, chunk->page_list,
chunk->nents, DMA_BIDIRECTIONAL);
ib_dma_unmap_sg(dev, chunk->page_list,
chunk->nents, DMA_BIDIRECTIONAL);
for (i = 0; i < chunk->nents; ++i) {
if (umem->writable && dirty)
set_page_dirty_lock(chunk->page_list[i].page);
@ -136,10 +136,10 @@ int ib_umem_get(struct ib_device *dev, struct ib_umem *mem,
chunk->page_list[i].length = PAGE_SIZE;
}
chunk->nmap = dma_map_sg(dev->dma_device,
&chunk->page_list[0],
chunk->nents,
DMA_BIDIRECTIONAL);
chunk->nmap = ib_dma_map_sg(dev,
&chunk->page_list[0],
chunk->nents,
DMA_BIDIRECTIONAL);
if (chunk->nmap <= 0) {
for (i = 0; i < chunk->nents; ++i)
put_page(chunk->page_list[i].page);

13
drivers/infiniband/hw/amso1100/c2_qp.c
View File

@ -161,8 +161,10 @@ int c2_qp_modify(struct c2_dev *c2dev, struct c2_qp *qp,
if (attr_mask & IB_QP_STATE) {
/* Ensure the state is valid */
if (attr->qp_state < 0 || attr->qp_state > IB_QPS_ERR)
return -EINVAL;
if (attr->qp_state < 0 || attr->qp_state > IB_QPS_ERR) {
err = -EINVAL;
goto bail0;
}
wr.next_qp_state = cpu_to_be32(to_c2_state(attr->qp_state));
@ -184,9 +186,10 @@ int c2_qp_modify(struct c2_dev *c2dev, struct c2_qp *qp,
if (attr->cur_qp_state != IB_QPS_RTR &&
attr->cur_qp_state != IB_QPS_RTS &&
attr->cur_qp_state != IB_QPS_SQD &&
attr->cur_qp_state != IB_QPS_SQE)
return -EINVAL;
else
attr->cur_qp_state != IB_QPS_SQE) {
err = -EINVAL;
goto bail0;
} else
wr.next_qp_state =
cpu_to_be32(to_c2_state(attr->cur_qp_state));

1
drivers/infiniband/hw/ipath/Makefile
View File

@ -6,6 +6,7 @@ obj-$(CONFIG_INFINIBAND_IPATH) += ib_ipath.o
ib_ipath-y := \
ipath_cq.o \
ipath_diag.o \
ipath_dma.o \
ipath_driver.o \
ipath_eeprom.o \
ipath_file_ops.o \

189
drivers/infiniband/hw/ipath/ipath_dma.c Normal file
View File

@ -0,0 +1,189 @@
/*
* Copyright (c) 2006 QLogic, Corporation. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <rdma/ib_verbs.h>
#include "ipath_verbs.h"
#define BAD_DMA_ADDRESS ((u64) 0)
/*
* The following functions implement driver specific replacements
* for the ib_dma_*() functions.
*
* These functions return kernel virtual addresses instead of
* device bus addresses since the driver uses the CPU to copy
* data instead of using hardware DMA.
*/
static int ipath_mapping_error(struct ib_device *dev, u64 dma_addr)
{
return dma_addr == BAD_DMA_ADDRESS;
}
static u64 ipath_dma_map_single(struct ib_device *dev,
void *cpu_addr, size_t size,
enum dma_data_direction direction)
{
BUG_ON(!valid_dma_direction(direction));
return (u64) cpu_addr;
}
static void ipath_dma_unmap_single(struct ib_device *dev,
u64 addr, size_t size,
enum dma_data_direction direction)
{
BUG_ON(!valid_dma_direction(direction));
}
static u64 ipath_dma_map_page(struct ib_device *dev,
struct page *page,
unsigned long offset,
size_t size,
enum dma_data_direction direction)
{
u64 addr;
BUG_ON(!valid_dma_direction(direction));
if (offset + size > PAGE_SIZE) {
addr = BAD_DMA_ADDRESS;
goto done;
}
addr = (u64) page_address(page);
if (addr)
addr += offset;
/* TODO: handle highmem pages */
done:
return addr;
}
static void ipath_dma_unmap_page(struct ib_device *dev,
u64 addr, size_t size,
enum dma_data_direction direction)
{
BUG_ON(!valid_dma_direction(direction));
}
int ipath_map_sg(struct ib_device *dev, struct scatterlist *sg, int nents,
enum dma_data_direction direction)
{
u64 addr;
int i;
int ret = nents;
BUG_ON(!valid_dma_direction(direction));
for (i = 0; i < nents; i++) {
addr = (u64) page_address(sg[i].page);
/* TODO: handle highmem pages */
if (!addr) {
ret = 0;
break;
}
}
return ret;
}
static void ipath_unmap_sg(struct ib_device *dev,
struct scatterlist *sg, int nents,
enum dma_data_direction direction)
{
BUG_ON(!valid_dma_direction(direction));
}
static u64 ipath_sg_dma_address(struct ib_device *dev, struct scatterlist *sg)
{
u64 addr = (u64) page_address(sg->page);
if (addr)
addr += sg->offset;
return addr;
}
static unsigned int ipath_sg_dma_len(struct ib_device *dev,
struct scatterlist *sg)
{
return sg->length;
}
static void ipath_sync_single_for_cpu(struct ib_device *dev,
u64 addr,
size_t size,
enum dma_data_direction dir)
{
}
static void ipath_sync_single_for_device(struct ib_device *dev,
u64 addr,
size_t size,
enum dma_data_direction dir)
{
}
static void *ipath_dma_alloc_coherent(struct ib_device *dev, size_t size,
u64 *dma_handle, gfp_t flag)
{
struct page *p;
void *addr = NULL;
p = alloc_pages(flag, get_order(size));
if (p)
addr = page_address(p);
if (dma_handle)
*dma_handle = (u64) addr;
return addr;
}
static void ipath_dma_free_coherent(struct ib_device *dev, size_t size,
void *cpu_addr, dma_addr_t dma_handle)
{
free_pages((unsigned long) cpu_addr, get_order(size));
}
struct ib_dma_mapping_ops ipath_dma_mapping_ops = {
ipath_mapping_error,
ipath_dma_map_single,
ipath_dma_unmap_single,
ipath_dma_map_page,
ipath_dma_unmap_page,
ipath_map_sg,
ipath_unmap_sg,
ipath_sg_dma_address,
ipath_sg_dma_len,
ipath_sync_single_for_cpu,
ipath_sync_single_for_device,
ipath_dma_alloc_coherent,
ipath_dma_free_coherent
};

4
drivers/infiniband/hw/ipath/ipath_driver.c
View File

@ -1825,8 +1825,6 @@ void ipath_write_kreg_port(const struct ipath_devdata *dd, ipath_kreg regno,
*/
void ipath_shutdown_device(struct ipath_devdata *dd)
{
u64 val;
ipath_dbg("Shutting down the device\n");
dd->ipath_flags |= IPATH_LINKUNK;
@ -1849,7 +1847,7 @@ void ipath_shutdown_device(struct ipath_devdata *dd)
*/
ipath_write_kreg(dd, dd->ipath_kregs->kr_sendctrl, 0ULL);
/* flush it */
val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch);
ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch);
/*
* enough for anything that's going to trickle out to have actually
* done so.

5
drivers/infiniband/hw/ipath/ipath_file_ops.c
View File

@ -699,7 +699,6 @@ static int ipath_manage_rcvq(struct ipath_portdata *pd, unsigned subport,
int start_stop)
{
struct ipath_devdata *dd = pd->port_dd;
u64 tval;
ipath_cdbg(PROC, "%sabling rcv for unit %u port %u:%u\n",
start_stop ? "en" : "dis", dd->ipath_unit,
@ -729,7 +728,7 @@ static int ipath_manage_rcvq(struct ipath_portdata *pd, unsigned subport,
ipath_write_kreg(dd, dd->ipath_kregs->kr_rcvctrl,
dd->ipath_rcvctrl);
/* now be sure chip saw it before we return */
tval = ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch);
ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch);
if (start_stop) {
/*
* And try to be sure that tail reg update has happened too.
@ -738,7 +737,7 @@ static int ipath_manage_rcvq(struct ipath_portdata *pd, unsigned subport,
* in memory copy, since we could overwrite an update by the
* chip if we did.
*/
tval = ipath_read_ureg32(dd, ur_rcvhdrtail, pd->port_port);
ipath_read_ureg32(dd, ur_rcvhdrtail, pd->port_port);
}
/* always; new head should be equal to new tail; see above */
bail:

3
drivers/infiniband/hw/ipath/ipath_iba6110.c
View File

@ -1447,7 +1447,7 @@ static void ipath_ht_tidtemplate(struct ipath_devdata *dd)
static int ipath_ht_early_init(struct ipath_devdata *dd)
{
u32 __iomem *piobuf;
u32 pioincr, val32, egrsize;
u32 pioincr, val32;
int i;
/*
@ -1467,7 +1467,6 @@ static int ipath_ht_early_init(struct ipath_devdata *dd)
* errors interrupts if we ever see one).
*/
dd->ipath_rcvegrbufsize = dd->ipath_piosize2k;
egrsize = dd->ipath_rcvegrbufsize;
/*
* the min() check here is currently a nop, but it may not

8
drivers/infiniband/hw/ipath/ipath_iba6120.c
View File

@ -602,7 +602,7 @@ static void ipath_pe_init_hwerrors(struct ipath_devdata *dd)
*/
static int ipath_pe_bringup_serdes(struct ipath_devdata *dd)
{
u64 val, tmp, config1, prev_val;
u64 val, config1, prev_val;
int ret = 0;
ipath_dbg("Trying to bringup serdes\n");
@ -633,7 +633,7 @@ static int ipath_pe_bringup_serdes(struct ipath_devdata *dd)
| INFINIPATH_SERDC0_L1PWR_DN;
ipath_write_kreg(dd, dd->ipath_kregs->kr_serdesconfig0, val);
/* be sure chip saw it */
tmp = ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch);
ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch);
udelay(5); /* need pll reset set at least for a bit */
/*
* after PLL is reset, set the per-lane Resets and TxIdle and
@ -647,7 +647,7 @@ static int ipath_pe_bringup_serdes(struct ipath_devdata *dd)
"and txidle (%llx)\n", (unsigned long long) val);
ipath_write_kreg(dd, dd->ipath_kregs->kr_serdesconfig0, val);
/* be sure chip saw it */
tmp = ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch);
ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch);
/* need PLL reset clear for at least 11 usec before lane
* resets cleared; give it a few more to be sure */
udelay(15);
@ -851,12 +851,12 @@ static int ipath_setup_pe_config(struct ipath_devdata *dd,
int pos, ret;
dd->ipath_msi_lo = 0; /* used as a flag during reset processing */
dd->ipath_irq = pdev->irq;
ret = pci_enable_msi(dd->pcidev);
if (ret)
ipath_dev_err(dd, "pci_enable_msi failed: %d, "
"interrupts may not work\n", ret);
/* continue even if it fails, we may still be OK... */
dd->ipath_irq = pdev->irq;
if ((pos = pci_find_capability(dd->pcidev, PCI_CAP_ID_MSI))) {
u16 control;

3
drivers/infiniband/hw/ipath/ipath_init_chip.c
View File

@ -347,10 +347,9 @@ done:
static int init_chip_reset(struct ipath_devdata *dd,
struct ipath_portdata **pdp)
{
struct ipath_portdata *pd;
u32 rtmp;
*pdp = pd = dd->ipath_pd[0];
*pdp = dd->ipath_pd[0];
/* ensure chip does no sends or receives while we re-initialize */
dd->ipath_control = dd->ipath_sendctrl = dd->ipath_rcvctrl = 0U;
ipath_write_kreg(dd, dd->ipath_kregs->kr_rcvctrl, 0);

3
drivers/infiniband/hw/ipath/ipath_intr.c
View File

@ -598,10 +598,9 @@ static int handle_errors(struct ipath_devdata *dd, ipath_err_t errs)
* on close
*/
if (errs & INFINIPATH_E_RRCVHDRFULL) {
int any;
u32 hd, tl;
ipath_stats.sps_hdrqfull++;
for (any = i = 0; i < dd->ipath_cfgports; i++) {
for (i = 0; i < dd->ipath_cfgports; i++) {
struct ipath_portdata *pd = dd->ipath_pd[i];
if (i == 0) {
hd = dd->ipath_port0head;

8
drivers/infiniband/hw/ipath/ipath_keys.c
View File

@ -134,7 +134,7 @@ int ipath_lkey_ok(struct ipath_qp *qp, struct ipath_sge *isge,
*/
if (sge->lkey == 0) {
isge->mr = NULL;
isge->vaddr = bus_to_virt(sge->addr);
isge->vaddr = (void *) sge->addr;
isge->length = sge->length;
isge->sge_length = sge->length;
ret = 1;
@ -202,12 +202,12 @@ int ipath_rkey_ok(struct ipath_qp *qp, struct ipath_sge_state *ss,
int ret;
/*
* We use RKEY == zero for physical addresses
* (see ipath_get_dma_mr).
* We use RKEY == zero for kernel virtual addresses
* (see ipath_get_dma_mr and ipath_dma.c).
*/
if (rkey == 0) {
sge->mr = NULL;
sge->vaddr = phys_to_virt(vaddr);
sge->vaddr = (void *) vaddr;
sge->length = len;
sge->sge_length = len;
ss->sg_list = NULL;

7
drivers/infiniband/hw/ipath/ipath_mr.c
View File

@ -54,6 +54,8 @@ static inline struct ipath_fmr *to_ifmr(struct ib_fmr *ibfmr)
* @acc: access flags
*
* Returns the memory region on success, otherwise returns an errno.
* Note that all DMA addresses should be created via the
* struct ib_dma_mapping_ops functions (see ipath_dma.c).
*/
struct ib_mr *ipath_get_dma_mr(struct ib_pd *pd, int acc)
{
@ -149,8 +151,7 @@ struct ib_mr *ipath_reg_phys_mr(struct ib_pd *pd,
m = 0;
n = 0;
for (i = 0; i < num_phys_buf; i++) {
mr->mr.map[m]->segs[n].vaddr =
phys_to_virt(buffer_list[i].addr);
mr->mr.map[m]->segs[n].vaddr = (void *) buffer_list[i].addr;
mr->mr.map[m]->segs[n].length = buffer_list[i].size;
mr->mr.length += buffer_list[i].size;
n++;
@ -347,7 +348,7 @@ int ipath_map_phys_fmr(struct ib_fmr *ibfmr, u64 * page_list,
n = 0;
ps = 1 << fmr->page_shift;
for (i = 0; i < list_len; i++) {
fmr->mr.map[m]->segs[n].vaddr = phys_to_virt(page_list[i]);
fmr->mr.map[m]->segs[n].vaddr = (void *) page_list[i];
fmr->mr.map[m]->segs[n].length = ps;
if (++n == IPATH_SEGSZ) {
m++;

3
drivers/infiniband/hw/ipath/ipath_sysfs.c
View File

@ -215,7 +215,6 @@ static ssize_t store_mlid(struct device *dev,
size_t count)
{
struct ipath_devdata *dd = dev_get_drvdata(dev);
int unit;
u16 mlid;
int ret;
@ -223,8 +222,6 @@ static ssize_t store_mlid(struct device *dev,
if (ret < 0 || mlid < IPATH_MULTICAST_LID_BASE)
goto invalid;
unit = dd->ipath_unit;
dd->ipath_mlid = mlid;
goto bail;

1
drivers/infiniband/hw/ipath/ipath_verbs.c
View File

@ -1599,6 +1599,7 @@ int ipath_register_ib_device(struct ipath_devdata *dd)
dev->detach_mcast = ipath_multicast_detach;
dev->process_mad = ipath_process_mad;
dev->mmap = ipath_mmap;
dev->dma_ops = &ipath_dma_mapping_ops;
snprintf(dev->node_desc, sizeof(dev->node_desc),
IPATH_IDSTR " %s", init_utsname()->nodename);

2
drivers/infiniband/hw/ipath/ipath_verbs.h
View File

@ -812,4 +812,6 @@ extern unsigned int ib_ipath_max_srq_wrs;
extern const u32 ib_ipath_rnr_table[];
extern struct ib_dma_mapping_ops ipath_dma_mapping_ops;
#endif /* IPATH_VERBS_H */

4
drivers/infiniband/ulp/ipoib/ipoib.h
View File

@ -105,12 +105,12 @@ struct ipoib_mcast;
struct ipoib_rx_buf {
struct sk_buff *skb;
dma_addr_t mapping;
u64 mapping;
};
struct ipoib_tx_buf {
struct sk_buff *skb;
DECLARE_PCI_UNMAP_ADDR(mapping)
u64 mapping;
};
/*

75
drivers/infiniband/ulp/ipoib/ipoib_ib.c
View File

@ -109,9 +109,8 @@ static int ipoib_ib_post_receive(struct net_device *dev, int id)
ret = ib_post_recv(priv->qp, &param, &bad_wr);
if (unlikely(ret)) {
ipoib_warn(priv, "receive failed for buf %d (%d)\n", id, ret);
dma_unmap_single(priv->ca->dma_device,
priv->rx_ring[id].mapping,
IPOIB_BUF_SIZE, DMA_FROM_DEVICE);
ib_dma_unmap_single(priv->ca, priv->rx_ring[id].mapping,
IPOIB_BUF_SIZE, DMA_FROM_DEVICE);
dev_kfree_skb_any(priv->rx_ring[id].skb);
priv->rx_ring[id].skb = NULL;
}
@ -123,7 +122,7 @@ static int ipoib_alloc_rx_skb(struct net_device *dev, int id)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
struct sk_buff *skb;
dma_addr_t addr;
u64 addr;
skb = dev_alloc_skb(IPOIB_BUF_SIZE + 4);
if (!skb)
@ -136,10 +135,9 @@ static int ipoib_alloc_rx_skb(struct net_device *dev, int id)
*/
skb_reserve(skb, 4);
addr = dma_map_single(priv->ca->dma_device,
skb->data, IPOIB_BUF_SIZE,
DMA_FROM_DEVICE);
if (unlikely(dma_mapping_error(addr))) {
addr = ib_dma_map_single(priv->ca, skb->data, IPOIB_BUF_SIZE,
DMA_FROM_DEVICE);
if (unlikely(ib_dma_mapping_error(priv->ca, addr))) {
dev_kfree_skb_any(skb);
return -EIO;
}
@ -174,7 +172,7 @@ static void ipoib_ib_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
struct ipoib_dev_priv *priv = netdev_priv(dev);
unsigned int wr_id = wc->wr_id & ~IPOIB_OP_RECV;
struct sk_buff *skb;
dma_addr_t addr;
u64 addr;
ipoib_dbg_data(priv, "recv completion: id %d, op %d, status: %d\n",
wr_id, wc->opcode, wc->status);
@ -193,8 +191,8 @@ static void ipoib_ib_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
ipoib_warn(priv, "failed recv event "
"(status=%d, wrid=%d vend_err %x)\n",
wc->status, wr_id, wc->vendor_err);
dma_unmap_single(priv->ca->dma_device, addr,
IPOIB_BUF_SIZE, DMA_FROM_DEVICE);
ib_dma_unmap_single(priv->ca, addr,
IPOIB_BUF_SIZE, DMA_FROM_DEVICE);
dev_kfree_skb_any(skb);
priv->rx_ring[wr_id].skb = NULL;
return;
@ -212,8 +210,7 @@ static void ipoib_ib_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
ipoib_dbg_data(priv, "received %d bytes, SLID 0x%04x\n",
wc->byte_len, wc->slid);
dma_unmap_single(priv->ca->dma_device, addr,
IPOIB_BUF_SIZE, DMA_FROM_DEVICE);
ib_dma_unmap_single(priv->ca, addr, IPOIB_BUF_SIZE, DMA_FROM_DEVICE);
skb_put(skb, wc->byte_len);
skb_pull(skb, IB_GRH_BYTES);
@ -261,10 +258,8 @@ static void ipoib_ib_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
tx_req = &priv->tx_ring[wr_id];
dma_unmap_single(priv->ca->dma_device,
pci_unmap_addr(tx_req, mapping),
tx_req->skb->len,
DMA_TO_DEVICE);
ib_dma_unmap_single(priv->ca, tx_req->mapping,
tx_req->skb->len, DMA_TO_DEVICE);
++priv->stats.tx_packets;
priv->stats.tx_bytes += tx_req->skb->len;
@ -311,7 +306,7 @@ void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr)
static inline int post_send(struct ipoib_dev_priv *priv,
unsigned int wr_id,
struct ib_ah *address, u32 qpn,
dma_addr_t addr, int len)
u64 addr, int len)
{
struct ib_send_wr *bad_wr;
@ -330,7 +325,7 @@ void ipoib_send(struct net_device *dev, struct sk_buff *skb,
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
struct ipoib_tx_buf *tx_req;
dma_addr_t addr;
u64 addr;
if (unlikely(skb->len > dev->mtu + INFINIBAND_ALEN)) {
ipoib_warn(priv, "packet len %d (> %d) too long to send, dropping\n",
@ -353,21 +348,20 @@ void ipoib_send(struct net_device *dev, struct sk_buff *skb,
*/
tx_req = &priv->tx_ring[priv->tx_head & (ipoib_sendq_size - 1)];
tx_req->skb = skb;
addr = dma_map_single(priv->ca->dma_device, skb->data, skb->len,
DMA_TO_DEVICE);
if (unlikely(dma_mapping_error(addr))) {
addr = ib_dma_map_single(priv->ca, skb->data, skb->len,
DMA_TO_DEVICE);
if (unlikely(ib_dma_mapping_error(priv->ca, addr))) {
++priv->stats.tx_errors;
dev_kfree_skb_any(skb);
return;
}
pci_unmap_addr_set(tx_req, mapping, addr);
tx_req->mapping = addr;
if (unlikely(post_send(priv, priv->tx_head & (ipoib_sendq_size - 1),
address->ah, qpn, addr, skb->len))) {
ipoib_warn(priv, "post_send failed\n");
++priv->stats.tx_errors;
dma_unmap_single(priv->ca->dma_device, addr, skb->len,
DMA_TO_DEVICE);
ib_dma_unmap_single(priv->ca, addr, skb->len, DMA_TO_DEVICE);
dev_kfree_skb_any(skb);
} else {
dev->trans_start = jiffies;
@ -538,24 +532,27 @@ int ipoib_ib_dev_stop(struct net_device *dev)
while ((int) priv->tx_tail - (int) priv->tx_head < 0) {
tx_req = &priv->tx_ring[priv->tx_tail &
(ipoib_sendq_size - 1)];
dma_unmap_single(priv->ca->dma_device,
pci_unmap_addr(tx_req, mapping),
tx_req->skb->len,
DMA_TO_DEVICE);
ib_dma_unmap_single(priv->ca,
tx_req->mapping,
tx_req->skb->len,
DMA_TO_DEVICE);
dev_kfree_skb_any(tx_req->skb);
++priv->tx_tail;
}
for (i = 0; i < ipoib_recvq_size; ++i)
if (priv->rx_ring[i].skb) {
dma_unmap_single(priv->ca->dma_device,
pci_unmap_addr(&priv->rx_ring[i],
mapping),
IPOIB_BUF_SIZE,
DMA_FROM_DEVICE);
dev_kfree_skb_any(priv->rx_ring[i].skb);
priv->rx_ring[i].skb = NULL;
}
for (i = 0; i < ipoib_recvq_size; ++i) {
struct ipoib_rx_buf *rx_req;
rx_req = &priv->rx_ring[i];
if (!rx_req->skb)
continue;
ib_dma_unmap_single(priv->ca,
rx_req->mapping,
IPOIB_BUF_SIZE,
DMA_FROM_DEVICE);
dev_kfree_skb_any(rx_req->skb);
rx_req->skb = NULL;
}
goto timeout;
}

3
drivers/infiniband/ulp/ipoib/ipoib_main.c
View File

@ -497,8 +497,6 @@ static void neigh_add_path(struct sk_buff *skb, struct net_device *dev)
return;
}
skb_queue_head_init(&neigh->queue);
/*
* We can only be called from ipoib_start_xmit, so we're
* inside tx_lock -- no need to save/restore flags.
@ -806,6 +804,7 @@ struct ipoib_neigh *ipoib_neigh_alloc(struct neighbour *neighbour)
neigh->neighbour = neighbour;
*to_ipoib_neigh(neighbour) = neigh;
skb_queue_head_init(&neigh->queue);
return neigh;
}

2
drivers/infiniband/ulp/iser/iscsi_iser.h
View File

@ -182,7 +182,7 @@ struct iser_regd_buf {
struct iser_mem_reg reg; /* memory registration info */
void *virt_addr;
struct iser_device *device; /* device->device for dma_unmap */
dma_addr_t dma_addr; /* if non zero, addr for dma_unmap */
u64 dma_addr; /* if non zero, addr for dma_unmap */
enum dma_data_direction direction; /* direction for dma_unmap */
unsigned int data_size;
atomic_t ref_count; /* refcount, freed when dec to 0 */

4
drivers/infiniband/ulp/iser/iser_initiator.c
View File

@ -487,10 +487,8 @@ int iser_send_control(struct iscsi_conn *conn,
struct iscsi_iser_conn *iser_conn = conn->dd_data;
struct iser_desc *mdesc = mtask->dd_data;
struct iser_dto *send_dto = NULL;
unsigned int itt;
unsigned long data_seg_len;
int err = 0;
unsigned char opcode;
struct iser_regd_buf *regd_buf;
struct iser_device *device;
@ -512,8 +510,6 @@ int iser_send_control(struct iscsi_conn *conn,
iser_reg_single(device, send_dto->regd[0], DMA_TO_DEVICE);
itt = ntohl(mtask->hdr->itt);
opcode = mtask->hdr->opcode & ISCSI_OPCODE_MASK;
data_seg_len = ntoh24(mtask->hdr->dlength);
if (data_seg_len > 0) {

125
drivers/infiniband/ulp/iser/iser_memory.c
View File

@ -52,7 +52,7 @@
*/
int iser_regd_buff_release(struct iser_regd_buf *regd_buf)
{
struct device *dma_device;
struct ib_device *dev;
if ((atomic_read(&regd_buf->ref_count) == 0) ||
atomic_dec_and_test(&regd_buf->ref_count)) {
@ -61,8 +61,8 @@ int iser_regd_buff_release(struct iser_regd_buf *regd_buf)
iser_unreg_mem(&regd_buf->reg);
if (regd_buf->dma_addr) {
dma_device = regd_buf->device->ib_device->dma_device;
dma_unmap_single(dma_device,
dev = regd_buf->device->ib_device;
ib_dma_unmap_single(dev,
regd_buf->dma_addr,
regd_buf->data_size,
regd_buf->direction);
@ -84,12 +84,12 @@ void iser_reg_single(struct iser_device *device,
struct iser_regd_buf *regd_buf,
enum dma_data_direction direction)
{
dma_addr_t dma_addr;
u64 dma_addr;
dma_addr = dma_map_single(device->ib_device->dma_device,
regd_buf->virt_addr,
regd_buf->data_size, direction);
BUG_ON(dma_mapping_error(dma_addr));
dma_addr = ib_dma_map_single(device->ib_device,
regd_buf->virt_addr,
regd_buf->data_size, direction);
BUG_ON(ib_dma_mapping_error(device->ib_device, dma_addr));
regd_buf->reg.lkey = device->mr->lkey;
regd_buf->reg.len = regd_buf->data_size;
@ -107,7 +107,7 @@ int iser_start_rdma_unaligned_sg(struct iscsi_iser_cmd_task *iser_ctask,
enum iser_data_dir cmd_dir)
{
int dma_nents;
struct device *dma_device;
struct ib_device *dev;
char *mem = NULL;
struct iser_data_buf *data = &iser_ctask->data[cmd_dir];
unsigned long cmd_data_len = data->data_len;
@ -147,17 +147,12 @@ int iser_start_rdma_unaligned_sg(struct iscsi_iser_cmd_task *iser_ctask,
iser_ctask->data_copy[cmd_dir].copy_buf = mem;
dma_device = iser_ctask->iser_conn->ib_conn->device->ib_device->dma_device;
if (cmd_dir == ISER_DIR_OUT)
dma_nents = dma_map_sg(dma_device,
&iser_ctask->data_copy[cmd_dir].sg_single,
1, DMA_TO_DEVICE);
else
dma_nents = dma_map_sg(dma_device,
&iser_ctask->data_copy[cmd_dir].sg_single,
1, DMA_FROM_DEVICE);
dev = iser_ctask->iser_conn->ib_conn->device->ib_device;
dma_nents = ib_dma_map_sg(dev,
&iser_ctask->data_copy[cmd_dir].sg_single,
1,
(cmd_dir == ISER_DIR_OUT) ?
DMA_TO_DEVICE : DMA_FROM_DEVICE);
BUG_ON(dma_nents == 0);
iser_ctask->data_copy[cmd_dir].dma_nents = dma_nents;
@ -170,19 +165,16 @@ int iser_start_rdma_unaligned_sg(struct iscsi_iser_cmd_task *iser_ctask,
void iser_finalize_rdma_unaligned_sg(struct iscsi_iser_cmd_task *iser_ctask,
enum iser_data_dir cmd_dir)
{
struct device *dma_device;
struct ib_device *dev;
struct iser_data_buf *mem_copy;
unsigned long cmd_data_len;
dma_device = iser_ctask->iser_conn->ib_conn->device->ib_device->dma_device;
mem_copy = &iser_ctask->data_copy[cmd_dir];
dev = iser_ctask->iser_conn->ib_conn->device->ib_device;
mem_copy = &iser_ctask->data_copy[cmd_dir];
if (cmd_dir == ISER_DIR_OUT)
dma_unmap_sg(dma_device, &mem_copy->sg_single, 1,
DMA_TO_DEVICE);
else
dma_unmap_sg(dma_device, &mem_copy->sg_single, 1,
DMA_FROM_DEVICE);
ib_dma_unmap_sg(dev, &mem_copy->sg_single, 1,
(cmd_dir == ISER_DIR_OUT) ?
DMA_TO_DEVICE : DMA_FROM_DEVICE);
if (cmd_dir == ISER_DIR_IN) {
char *mem;
@ -231,11 +223,12 @@ void iser_finalize_rdma_unaligned_sg(struct iscsi_iser_cmd_task *iser_ctask,
* consecutive elements. Also, it handles one entry SG.
*/
static int iser_sg_to_page_vec(struct iser_data_buf *data,
struct iser_page_vec *page_vec)
struct iser_page_vec *page_vec,
struct ib_device *ibdev)
{
struct scatterlist *sg = (struct scatterlist *)data->buf;
dma_addr_t first_addr, last_addr, page;
int start_aligned, end_aligned;
u64 first_addr, last_addr, page;
int end_aligned;
unsigned int cur_page = 0;
unsigned long total_sz = 0;
int i;
@ -244,19 +237,21 @@ static int iser_sg_to_page_vec(struct iser_data_buf *data,
page_vec->offset = (u64) sg[0].offset & ~MASK_4K;
for (i = 0; i < data->dma_nents; i++) {
total_sz += sg_dma_len(&sg[i]);
unsigned int dma_len = ib_sg_dma_len(ibdev, &sg[i]);
first_addr = sg_dma_address(&sg[i]);
last_addr = first_addr + sg_dma_len(&sg[i]);
total_sz += dma_len;
first_addr = ib_sg_dma_address(ibdev, &sg[i]);
last_addr = first_addr + dma_len;
start_aligned = !(first_addr & ~MASK_4K);
end_aligned = !(last_addr & ~MASK_4K);
/* continue to collect page fragments till aligned or SG ends */
while (!end_aligned && (i + 1 < data->dma_nents)) {
i++;
total_sz += sg_dma_len(&sg[i]);
last_addr = sg_dma_address(&sg[i]) + sg_dma_len(&sg[i]);
dma_len = ib_sg_dma_len(ibdev, &sg[i]);
total_sz += dma_len;
last_addr = ib_sg_dma_address(ibdev, &sg[i]) + dma_len;
end_aligned = !(last_addr & ~MASK_4K);
}
@ -288,10 +283,11 @@ static int iser_sg_to_page_vec(struct iser_data_buf *data,
* the number of entries which are aligned correctly. Supports the case where
* consecutive SG elements are actually fragments of the same physcial page.
*/
static unsigned int iser_data_buf_aligned_len(struct iser_data_buf *data)
static unsigned int iser_data_buf_aligned_len(struct iser_data_buf *data,
struct ib_device *ibdev)
{
struct scatterlist *sg;
dma_addr_t end_addr, next_addr;
u64 end_addr, next_addr;
int i, cnt;
unsigned int ret_len = 0;
@ -303,12 +299,12 @@ static unsigned int iser_data_buf_aligned_len(struct iser_data_buf *data)
(unsigned long)page_to_phys(sg[i].page),
(unsigned long)sg[i].offset,
(unsigned long)sg[i].length); */
end_addr = sg_dma_address(&sg[i]) +
sg_dma_len(&sg[i]);
end_addr = ib_sg_dma_address(ibdev, &sg[i]) +
ib_sg_dma_len(ibdev, &sg[i]);
/* iser_dbg("Checking sg iobuf end address "
"0x%08lX\n", end_addr); */
if (i + 1 < data->dma_nents) {
next_addr = sg_dma_address(&sg[i+1]);
next_addr = ib_sg_dma_address(ibdev, &sg[i+1]);
/* are i, i+1 fragments of the same page? */
if (end_addr == next_addr)
continue;
@ -325,7 +321,8 @@ static unsigned int iser_data_buf_aligned_len(struct iser_data_buf *data)
return ret_len;
}
static void iser_data_buf_dump(struct iser_data_buf *data)
static void iser_data_buf_dump(struct iser_data_buf *data,
struct ib_device *ibdev)
{
struct scatterlist *sg = (struct scatterlist *)data->buf;
int i;
@ -333,9 +330,9 @@ static void iser_data_buf_dump(struct iser_data_buf *data)
for (i = 0; i < data->dma_nents; i++)
iser_err("sg[%d] dma_addr:0x%lX page:0x%p "
"off:0x%x sz:0x%x dma_len:0x%x\n",
i, (unsigned long)sg_dma_address(&sg[i]),
i, (unsigned long)ib_sg_dma_address(ibdev, &sg[i]),
sg[i].page, sg[i].offset,
sg[i].length,sg_dma_len(&sg[i]));
sg[i].length, ib_sg_dma_len(ibdev, &sg[i]));
}
static void iser_dump_page_vec(struct iser_page_vec *page_vec)
@ -349,7 +346,8 @@ static void iser_dump_page_vec(struct iser_page_vec *page_vec)
}
static void iser_page_vec_build(struct iser_data_buf *data,
struct iser_page_vec *page_vec)
struct iser_page_vec *page_vec,
struct ib_device *ibdev)
{
int page_vec_len = 0;
@ -357,14 +355,14 @@ static void iser_page_vec_build(struct iser_data_buf *data,
page_vec->offset = 0;
iser_dbg("Translating sg sz: %d\n", data->dma_nents);
page_vec_len = iser_sg_to_page_vec(data,page_vec);
page_vec_len = iser_sg_to_page_vec(data, page_vec, ibdev);
iser_dbg("sg len %d page_vec_len %d\n", data->dma_nents,page_vec_len);
page_vec->length = page_vec_len;
if (page_vec_len * SIZE_4K < page_vec->data_size) {
iser_err("page_vec too short to hold this SG\n");
iser_data_buf_dump(data);
iser_data_buf_dump(data, ibdev);
iser_dump_page_vec(page_vec);
BUG();
}
@ -375,13 +373,12 @@ int iser_dma_map_task_data(struct iscsi_iser_cmd_task *iser_ctask,
enum iser_data_dir iser_dir,
enum dma_data_direction dma_dir)
{
struct device *dma_device;
struct ib_device *dev;
iser_ctask->dir[iser_dir] = 1;
dma_device =
iser_ctask->iser_conn->ib_conn->device->ib_device->dma_device;
dev = iser_ctask->iser_conn->ib_conn->device->ib_device;
data->dma_nents = dma_map_sg(dma_device, data->buf, data->size, dma_dir);
data->dma_nents = ib_dma_map_sg(dev, data->buf, data->size, dma_dir);
if (data->dma_nents == 0) {
iser_err("dma_map_sg failed!!!\n");
return -EINVAL;
@ -391,20 +388,19 @@ int iser_dma_map_task_data(struct iscsi_iser_cmd_task *iser_ctask,
void iser_dma_unmap_task_data(struct iscsi_iser_cmd_task *iser_ctask)
{
struct device *dma_device;
struct ib_device *dev;
struct iser_data_buf *data;
dma_device =
iser_ctask->iser_conn->ib_conn->device->ib_device->dma_device;
dev = iser_ctask->iser_conn->ib_conn->device->ib_device;
if (iser_ctask->dir[ISER_DIR_IN]) {
data = &iser_ctask->data[ISER_DIR_IN];
dma_unmap_sg(dma_device, data->buf, data->size, DMA_FROM_DEVICE);
ib_dma_unmap_sg(dev, data->buf, data->size, DMA_FROM_DEVICE);
}
if (iser_ctask->dir[ISER_DIR_OUT]) {
data = &iser_ctask->data[ISER_DIR_OUT];
dma_unmap_sg(dma_device, data->buf, data->size, DMA_TO_DEVICE);
ib_dma_unmap_sg(dev, data->buf, data->size, DMA_TO_DEVICE);
}
}
@ -419,6 +415,7 @@ int iser_reg_rdma_mem(struct iscsi_iser_cmd_task *iser_ctask,
{
struct iser_conn *ib_conn = iser_ctask->iser_conn->ib_conn;
struct iser_device *device = ib_conn->device;
struct ib_device *ibdev = device->ib_device;
struct iser_data_buf *mem = &iser_ctask->data[cmd_dir];
struct iser_regd_buf *regd_buf;
int aligned_len;
@ -428,11 +425,11 @@ int iser_reg_rdma_mem(struct iscsi_iser_cmd_task *iser_ctask,
regd_buf = &iser_ctask->rdma_regd[cmd_dir];
aligned_len = iser_data_buf_aligned_len(mem);
aligned_len = iser_data_buf_aligned_len(mem, ibdev);
if (aligned_len != mem->dma_nents) {
iser_err("rdma alignment violation %d/%d aligned\n",
aligned_len, mem->size);
iser_data_buf_dump(mem);
iser_data_buf_dump(mem, ibdev);
/* unmap the command data before accessing it */
iser_dma_unmap_task_data(iser_ctask);
@ -450,8 +447,8 @@ int iser_reg_rdma_mem(struct iscsi_iser_cmd_task *iser_ctask,
regd_buf->reg.lkey = device->mr->lkey;
regd_buf->reg.rkey = device->mr->rkey;
regd_buf->reg.len = sg_dma_len(&sg[0]);
regd_buf->reg.va = sg_dma_address(&sg[0]);
regd_buf->reg.len = ib_sg_dma_len(ibdev, &sg[0]);
regd_buf->reg.va = ib_sg_dma_address(ibdev, &sg[0]);
regd_buf->reg.is_fmr = 0;
iser_dbg("PHYSICAL Mem.register: lkey: 0x%08X rkey: 0x%08X "
@ -461,10 +458,10 @@ int iser_reg_rdma_mem(struct iscsi_iser_cmd_task *iser_ctask,
(unsigned long)regd_buf->reg.va,
(unsigned long)regd_buf->reg.len);
} else { /* use FMR for multiple dma entries */
iser_page_vec_build(mem, ib_conn->page_vec);
iser_page_vec_build(mem, ib_conn->page_vec, ibdev);
err = iser_reg_page_vec(ib_conn, ib_conn->page_vec, &regd_buf->reg);
if (err) {
iser_data_buf_dump(mem);
iser_data_buf_dump(mem, ibdev);
iser_err("mem->dma_nents = %d (dlength = 0x%x)\n", mem->dma_nents,
ntoh24(iser_ctask->desc.iscsi_header.dlength));
iser_err("page_vec: data_size = 0x%x, length = %d, offset = 0x%x\n",

81
drivers/infiniband/ulp/srp/ib_srp.c
View File

@ -122,9 +122,8 @@ static struct srp_iu *srp_alloc_iu(struct srp_host *host, size_t size,
if (!iu->buf)
goto out_free_iu;
iu->dma = dma_map_single(host->dev->dev->dma_device,
iu->buf, size, direction);
if (dma_mapping_error(iu->dma))
iu->dma = ib_dma_map_single(host->dev->dev, iu->buf, size, direction);
if (ib_dma_mapping_error(host->dev->dev, iu->dma))
goto out_free_buf;
iu->size = size;
@ -145,8 +144,7 @@ static void srp_free_iu(struct srp_host *host, struct srp_iu *iu)
if (!iu)
return;
dma_unmap_single(host->dev->dev->dma_device,
iu->dma, iu->size, iu->direction);
ib_dma_unmap_single(host->dev->dev, iu->dma, iu->size, iu->direction);
kfree(iu->buf);
kfree(iu);
}
@ -482,8 +480,8 @@ static void srp_unmap_data(struct scsi_cmnd *scmnd,
scat = &req->fake_sg;
}
dma_unmap_sg(target->srp_host->dev->dev->dma_device, scat, nents,
scmnd->sc_data_direction);
ib_dma_unmap_sg(target->srp_host->dev->dev, scat, nents,
scmnd->sc_data_direction);
}
static void srp_remove_req(struct srp_target_port *target, struct srp_request *req)
@ -595,23 +593,26 @@ static int srp_map_fmr(struct srp_target_port *target, struct scatterlist *scat,
int i, j;
int ret;
struct srp_device *dev = target->srp_host->dev;
struct ib_device *ibdev = dev->dev;
if (!dev->fmr_pool)
return -ENODEV;
if ((sg_dma_address(&scat[0]) & ~dev->fmr_page_mask) &&
if ((ib_sg_dma_address(ibdev, &scat[0]) & ~dev->fmr_page_mask) &&
mellanox_workarounds && !memcmp(&target->ioc_guid, mellanox_oui, 3))
return -EINVAL;
len = page_cnt = 0;
for (i = 0; i < sg_cnt; ++i) {
if (sg_dma_address(&scat[i]) & ~dev->fmr_page_mask) {
unsigned int dma_len = ib_sg_dma_len(ibdev, &scat[i]);
if (ib_sg_dma_address(ibdev, &scat[i]) & ~dev->fmr_page_mask) {
if (i > 0)
return -EINVAL;
else
++page_cnt;
}
if ((sg_dma_address(&scat[i]) + sg_dma_len(&scat[i])) &
if ((ib_sg_dma_address(ibdev, &scat[i]) + dma_len) &
~dev->fmr_page_mask) {
if (i < sg_cnt - 1)
return -EINVAL;
@ -619,7 +620,7 @@ static int srp_map_fmr(struct srp_target_port *target, struct scatterlist *scat,
++page_cnt;
}
len += sg_dma_len(&scat[i]);
len += dma_len;
}
page_cnt += len >> dev->fmr_page_shift;
@ -631,10 +632,14 @@ static int srp_map_fmr(struct srp_target_port *target, struct scatterlist *scat,
return -ENOMEM;
page_cnt = 0;
for (i = 0; i < sg_cnt; ++i)
for (j = 0; j < sg_dma_len(&scat[i]); j += dev->fmr_page_size)
for (i = 0; i < sg_cnt; ++i) {
unsigned int dma_len = ib_sg_dma_len(ibdev, &scat[i]);
for (j = 0; j < dma_len; j += dev->fmr_page_size)
dma_pages[page_cnt++] =
(sg_dma_address(&scat[i]) & dev->fmr_page_mask) + j;
(ib_sg_dma_address(ibdev, &scat[i]) &
dev->fmr_page_mask) + j;
}
req->fmr = ib_fmr_pool_map_phys(dev->fmr_pool,
dma_pages, page_cnt, io_addr);
@ -644,7 +649,8 @@ static int srp_map_fmr(struct srp_target_port *target, struct scatterlist *scat,
goto out;
}
buf->va = cpu_to_be64(sg_dma_address(&scat[0]) & ~dev->fmr_page_mask);
buf->va = cpu_to_be64(ib_sg_dma_address(ibdev, &scat[0]) &
~dev->fmr_page_mask);
buf->key = cpu_to_be32(req->fmr->fmr->rkey);
buf->len = cpu_to_be32(len);
@ -663,6 +669,8 @@ static int srp_map_data(struct scsi_cmnd *scmnd, struct srp_target_port *target,
struct srp_cmd *cmd = req->cmd->buf;
int len, nents, count;
u8 fmt = SRP_DATA_DESC_DIRECT;
struct srp_device *dev;
struct ib_device *ibdev;
if (!scmnd->request_buffer || scmnd->sc_data_direction == DMA_NONE)
return sizeof (struct srp_cmd);
@ -687,8 +695,10 @@ static int srp_map_data(struct scsi_cmnd *scmnd, struct srp_target_port *target,
sg_init_one(scat, scmnd->request_buffer, scmnd->request_bufflen);
}
count = dma_map_sg(target->srp_host->dev->dev->dma_device,
scat, nents, scmnd->sc_data_direction);
dev = target->srp_host->dev;
ibdev = dev->dev;
count = ib_dma_map_sg(ibdev, scat, nents, scmnd->sc_data_direction);
fmt = SRP_DATA_DESC_DIRECT;
len = sizeof (struct srp_cmd) + sizeof (struct srp_direct_buf);
@ -702,9 +712,9 @@ static int srp_map_data(struct scsi_cmnd *scmnd, struct srp_target_port *target,
*/
struct srp_direct_buf *buf = (void *) cmd->add_data;
buf->va = cpu_to_be64(sg_dma_address(scat));
buf->key = cpu_to_be32(target->srp_host->dev->mr->rkey);
buf->len = cpu_to_be32(sg_dma_len(scat));
buf->va = cpu_to_be64(ib_sg_dma_address(ibdev, scat));
buf->key = cpu_to_be32(dev->mr->rkey);
buf->len = cpu_to_be32(ib_sg_dma_len(ibdev, scat));
} else if (srp_map_fmr(target, scat, count, req,
(void *) cmd->add_data)) {
/*
@ -722,13 +732,14 @@ static int srp_map_data(struct scsi_cmnd *scmnd, struct srp_target_port *target,
count * sizeof (struct srp_direct_buf);
for (i = 0; i < count; ++i) {
unsigned int dma_len = ib_sg_dma_len(ibdev, &scat[i]);
buf->desc_list[i].va =
cpu_to_be64(sg_dma_address(&scat[i]));
cpu_to_be64(ib_sg_dma_address(ibdev, &scat[i]));
buf->desc_list[i].key =
cpu_to_be32(target->srp_host->dev->mr->rkey);
buf->desc_list[i].len =
cpu_to_be32(sg_dma_len(&scat[i]));
datalen += sg_dma_len(&scat[i]);
cpu_to_be32(dev->mr->rkey);
buf->desc_list[i].len = cpu_to_be32(dma_len);
datalen += dma_len;
}
if (scmnd->sc_data_direction == DMA_TO_DEVICE)
@ -808,13 +819,15 @@ static void srp_process_rsp(struct srp_target_port *target, struct srp_rsp *rsp)
static void srp_handle_recv(struct srp_target_port *target, struct ib_wc *wc)
{
struct ib_device *dev;
struct srp_iu *iu;
u8 opcode;
iu = target->rx_ring[wc->wr_id & ~SRP_OP_RECV];
dma_sync_single_for_cpu(target->srp_host->dev->dev->dma_device, iu->dma,
target->max_ti_iu_len, DMA_FROM_DEVICE);
dev = target->srp_host->dev->dev;
ib_dma_sync_single_for_cpu(dev, iu->dma, target->max_ti_iu_len,
DMA_FROM_DEVICE);
opcode = *(u8 *) iu->buf;
@ -850,8 +863,8 @@ static void srp_handle_recv(struct srp_target_port *target, struct ib_wc *wc)
break;
}
dma_sync_single_for_device(target->srp_host->dev->dev->dma_device, iu->dma,
target->max_ti_iu_len, DMA_FROM_DEVICE);
ib_dma_sync_single_for_device(dev, iu->dma, target->max_ti_iu_len,
DMA_FROM_DEVICE);
}
static void srp_completion(struct ib_cq *cq, void *target_ptr)
@ -969,6 +982,7 @@ static int srp_queuecommand(struct scsi_cmnd *scmnd,
struct srp_request *req;
struct srp_iu *iu;
struct srp_cmd *cmd;
struct ib_device *dev;
int len;
if (target->state == SRP_TARGET_CONNECTING)
@ -985,8 +999,9 @@ static int srp_queuecommand(struct scsi_cmnd *scmnd,
if (!iu)
goto err;
dma_sync_single_for_cpu(target->srp_host->dev->dev->dma_device, iu->dma,
srp_max_iu_len, DMA_TO_DEVICE);
dev = target->srp_host->dev->dev;
ib_dma_sync_single_for_cpu(dev, iu->dma, srp_max_iu_len,
DMA_TO_DEVICE);
req = list_entry(target->free_reqs.next, struct srp_request, list);
@ -1018,8 +1033,8 @@ static int srp_queuecommand(struct scsi_cmnd *scmnd,
goto err_unmap;
}
dma_sync_single_for_device(target->srp_host->dev->dev->dma_device, iu->dma,
srp_max_iu_len, DMA_TO_DEVICE);
ib_dma_sync_single_for_device(dev, iu->dma, srp_max_iu_len,
DMA_TO_DEVICE);
if (__srp_post_send(target, iu, len)) {
printk(KERN_ERR PFX "Send failed\n");

2
drivers/infiniband/ulp/srp/ib_srp.h
View File

@ -161,7 +161,7 @@ struct srp_target_port {
};
struct srp_iu {
dma_addr_t dma;
u64 dma;
void *buf;
size_t size;
enum dma_data_direction direction;

5
include/rdma/ib_marshall.h
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2005 Intel Corporation. All rights reserved.
* Copyright (c) 2005-2006 Intel Corporation. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
@ -41,6 +41,9 @@
void ib_copy_qp_attr_to_user(struct ib_uverbs_qp_attr *dst,
struct ib_qp_attr *src);
void ib_copy_ah_attr_to_user(struct ib_uverbs_ah_attr *dst,
struct ib_ah_attr *src);
void ib_copy_path_rec_to_user(struct ib_user_path_rec *dst,
struct ib_sa_path_rec *src);

253
include/rdma/ib_verbs.h
View File

@ -43,6 +43,8 @@
#include <linux/types.h>
#include <linux/device.h>
#include <linux/mm.h>
#include <linux/dma-mapping.h>
#include <asm/atomic.h>
#include <asm/scatterlist.h>
@ -848,6 +850,49 @@ struct ib_cache {
u8 *lmc_cache;
};
struct ib_dma_mapping_ops {
int (*mapping_error)(struct ib_device *dev,
u64 dma_addr);
u64 (*map_single)(struct ib_device *dev,
void *ptr, size_t size,
enum dma_data_direction direction);
void (*unmap_single)(struct ib_device *dev,
u64 addr, size_t size,
enum dma_data_direction direction);
u64 (*map_page)(struct ib_device *dev,
struct page *page, unsigned long offset,
size_t size,
enum dma_data_direction direction);
void (*unmap_page)(struct ib_device *dev,
u64 addr, size_t size,
enum dma_data_direction direction);
int (*map_sg)(struct ib_device *dev,
struct scatterlist *sg, int nents,
enum dma_data_direction direction);
void (*unmap_sg)(struct ib_device *dev,
struct scatterlist *sg, int nents,
enum dma_data_direction direction);
u64 (*dma_address)(struct ib_device *dev,
struct scatterlist *sg);
unsigned int (*dma_len)(struct ib_device *dev,
struct scatterlist *sg);
void (*sync_single_for_cpu)(struct ib_device *dev,
u64 dma_handle,
size_t size,
enum dma_data_direction dir);
void (*sync_single_for_device)(struct ib_device *dev,
u64 dma_handle,
size_t size,
enum dma_data_direction dir);
void *(*alloc_coherent)(struct ib_device *dev,
size_t size,
u64 *dma_handle,
gfp_t flag);
void (*free_coherent)(struct ib_device *dev,
size_t size, void *cpu_addr,
u64 dma_handle);
};
struct iw_cm_verbs;
struct ib_device {
@ -992,6 +1037,8 @@ struct ib_device {
struct ib_mad *in_mad,
struct ib_mad *out_mad);
struct ib_dma_mapping_ops *dma_ops;
struct module *owner;
struct class_device class_dev;
struct kobject ports_parent;
@ -1395,9 +1442,215 @@ static inline int ib_req_ncomp_notif(struct ib_cq *cq, int wc_cnt)
* usable for DMA.
* @pd: The protection domain associated with the memory region.
* @mr_access_flags: Specifies the memory access rights.
*
* Note that the ib_dma_*() functions defined below must be used
* to create/destroy addresses used with the Lkey or Rkey returned
* by ib_get_dma_mr().
*/
struct ib_mr *ib_get_dma_mr(struct ib_pd *pd, int mr_access_flags);
/**
* ib_dma_mapping_error - check a DMA addr for error
* @dev: The device for which the dma_addr was created
* @dma_addr: The DMA address to check
*/
static inline int ib_dma_mapping_error(struct ib_device *dev, u64 dma_addr)
{
return dev->dma_ops ?
dev->dma_ops->mapping_error(dev, dma_addr) :
dma_mapping_error(dma_addr);
}
/**
* ib_dma_map_single - Map a kernel virtual address to DMA address
* @dev: The device for which the dma_addr is to be created
* @cpu_addr: The kernel virtual address
* @size: The size of the region in bytes
* @direction: The direction of the DMA
*/
static inline u64 ib_dma_map_single(struct ib_device *dev,
void *cpu_addr, size_t size,
enum dma_data_direction direction)
{
return dev->dma_ops ?
dev->dma_ops->map_single(dev, cpu_addr, size, direction) :
dma_map_single(dev->dma_device, cpu_addr, size, direction);
}
/**
* ib_dma_unmap_single - Destroy a mapping created by ib_dma_map_single()
* @dev: The device for which the DMA address was created
* @addr: The DMA address
* @size: The size of the region in bytes
* @direction: The direction of the DMA
*/
static inline void ib_dma_unmap_single(struct ib_device *dev,
u64 addr, size_t size,
enum dma_data_direction direction)
{
dev->dma_ops ?
dev->dma_ops->unmap_single(dev, addr, size, direction) :
dma_unmap_single(dev->dma_device, addr, size, direction);
}
/**
* ib_dma_map_page - Map a physical page to DMA address
* @dev: The device for which the dma_addr is to be created
* @page: The page to be mapped
* @offset: The offset within the page
* @size: The size of the region in bytes
* @direction: The direction of the DMA
*/
static inline u64 ib_dma_map_page(struct ib_device *dev,
struct page *page,
unsigned long offset,
size_t size,
enum dma_data_direction direction)
{
return dev->dma_ops ?
dev->dma_ops->map_page(dev, page, offset, size, direction) :
dma_map_page(dev->dma_device, page, offset, size, direction);
}
/**
* ib_dma_unmap_page - Destroy a mapping created by ib_dma_map_page()
* @dev: The device for which the DMA address was created
* @addr: The DMA address
* @size: The size of the region in bytes
* @direction: The direction of the DMA
*/
static inline void ib_dma_unmap_page(struct ib_device *dev,
u64 addr, size_t size,
enum dma_data_direction direction)
{
dev->dma_ops ?
dev->dma_ops->unmap_page(dev, addr, size, direction) :
dma_unmap_page(dev->dma_device, addr, size, direction);
}
/**
* ib_dma_map_sg - Map a scatter/gather list to DMA addresses
* @dev: The device for which the DMA addresses are to be created
* @sg: The array of scatter/gather entries
* @nents: The number of scatter/gather entries
* @direction: The direction of the DMA
*/
static inline int ib_dma_map_sg(struct ib_device *dev,
struct scatterlist *sg, int nents,
enum dma_data_direction direction)
{
return dev->dma_ops ?
dev->dma_ops->map_sg(dev, sg, nents, direction) :
dma_map_sg(dev->dma_device, sg, nents, direction);
}
/**
* ib_dma_unmap_sg - Unmap a scatter/gather list of DMA addresses
* @dev: The device for which the DMA addresses were created
* @sg: The array of scatter/gather entries
* @nents: The number of scatter/gather entries
* @direction: The direction of the DMA
*/
static inline void ib_dma_unmap_sg(struct ib_device *dev,
struct scatterlist *sg, int nents,
enum dma_data_direction direction)
{
dev->dma_ops ?
dev->dma_ops->unmap_sg(dev, sg, nents, direction) :
dma_unmap_sg(dev->dma_device, sg, nents, direction);
}
/**
* ib_sg_dma_address - Return the DMA address from a scatter/gather entry
* @dev: The device for which the DMA addresses were created
* @sg: The scatter/gather entry
*/
static inline u64 ib_sg_dma_address(struct ib_device *dev,
struct scatterlist *sg)
{
return dev->dma_ops ?
dev->dma_ops->dma_address(dev, sg) : sg_dma_address(sg);
}
/**
* ib_sg_dma_len - Return the DMA length from a scatter/gather entry
* @dev: The device for which the DMA addresses were created
* @sg: The scatter/gather entry
*/
static inline unsigned int ib_sg_dma_len(struct ib_device *dev,
struct scatterlist *sg)
{
return dev->dma_ops ?
dev->dma_ops->dma_len(dev, sg) : sg_dma_len(sg);
}
/**
* ib_dma_sync_single_for_cpu - Prepare DMA region to be accessed by CPU
* @dev: The device for which the DMA address was created
* @addr: The DMA address
* @size: The size of the region in bytes
* @dir: The direction of the DMA
*/
static inline void ib_dma_sync_single_for_cpu(struct ib_device *dev,
u64 addr,
size_t size,
enum dma_data_direction dir)
{
dev->dma_ops ?
dev->dma_ops->sync_single_for_cpu(dev, addr, size, dir) :
dma_sync_single_for_cpu(dev->dma_device, addr, size, dir);
}
/**
* ib_dma_sync_single_for_device - Prepare DMA region to be accessed by device
* @dev: The device for which the DMA address was created
* @addr: The DMA address
* @size: The size of the region in bytes
* @dir: The direction of the DMA
*/
static inline void ib_dma_sync_single_for_device(struct ib_device *dev,
u64 addr,
size_t size,
enum dma_data_direction dir)
{
dev->dma_ops ?
dev->dma_ops->sync_single_for_device(dev, addr, size, dir) :
dma_sync_single_for_device(dev->dma_device, addr, size, dir);
}
/**
* ib_dma_alloc_coherent - Allocate memory and map it for DMA
* @dev: The device for which the DMA address is requested
* @size: The size of the region to allocate in bytes
* @dma_handle: A pointer for returning the DMA address of the region
* @flag: memory allocator flags
*/
static inline void *ib_dma_alloc_coherent(struct ib_device *dev,
size_t size,
u64 *dma_handle,
gfp_t flag)
{
return dev->dma_ops ?
dev->dma_ops->alloc_coherent(dev, size, dma_handle, flag) :
dma_alloc_coherent(dev->dma_device, size, dma_handle, flag);
}
/**
* ib_dma_free_coherent - Free memory allocated by ib_dma_alloc_coherent()
* @dev: The device for which the DMA addresses were allocated
* @size: The size of the region
* @cpu_addr: the address returned by ib_dma_alloc_coherent()
* @dma_handle: the DMA address returned by ib_dma_alloc_coherent()
*/
static inline void ib_dma_free_coherent(struct ib_device *dev,
size_t size, void *cpu_addr,
u64 dma_handle)
{
dev->dma_ops ?
dev->dma_ops->free_coherent(dev, size, cpu_addr, dma_handle) :
dma_free_coherent(dev->dma_device, size, cpu_addr, dma_handle);
}
/**
* ib_reg_phys_mr - Prepares a virtually addressed memory region for use
* by an HCA.

62
include/rdma/rdma_cm.h
View File

@ -77,11 +77,34 @@ struct rdma_route {
int num_paths;
};
struct rdma_conn_param {
const void *private_data;
u8 private_data_len;
u8 responder_resources;
u8 initiator_depth;
u8 flow_control;
u8 retry_count; /* ignored when accepting */
u8 rnr_retry_count;
/* Fields below ignored if a QP is created on the rdma_cm_id. */
u8 srq;
u32 qp_num;
};
struct rdma_ud_param {
const void *private_data;
u8 private_data_len;
struct ib_ah_attr ah_attr;
u32 qp_num;
u32 qkey;
};
struct rdma_cm_event {
enum rdma_cm_event_type event;
int status;
void *private_data;
u8 private_data_len;
union {
struct rdma_conn_param conn;
struct rdma_ud_param ud;
} param;
};
struct rdma_cm_id;
@ -204,25 +227,17 @@ void rdma_destroy_qp(struct rdma_cm_id *id);
int rdma_init_qp_attr(struct rdma_cm_id *id, struct ib_qp_attr *qp_attr,
int *qp_attr_mask);
struct rdma_conn_param {
const void *private_data;
u8 private_data_len;
u8 responder_resources;
u8 initiator_depth;
u8 flow_control;
u8 retry_count; /* ignored when accepting */
u8 rnr_retry_count;
/* Fields below ignored if a QP is created on the rdma_cm_id. */
u8 srq;
u32 qp_num;
enum ib_qp_type qp_type;
};
/**
* rdma_connect - Initiate an active connection request.
* @id: Connection identifier to connect.
* @conn_param: Connection information used for connected QPs.
*
* Users must have resolved a route for the rdma_cm_id to connect with
* by having called rdma_resolve_route before calling this routine.
*
* This call will either connect to a remote QP or obtain remote QP
* information for unconnected rdma_cm_id's. The actual operation is
* based on the rdma_cm_id's port space.
*/
int rdma_connect(struct rdma_cm_id *id, struct rdma_conn_param *conn_param);
@ -252,6 +267,21 @@ int rdma_listen(struct rdma_cm_id *id, int backlog);
*/
int rdma_accept(struct rdma_cm_id *id, struct rdma_conn_param *conn_param);
/**
* rdma_notify - Notifies the RDMA CM of an asynchronous event that has
* occurred on the connection.
* @id: Connection identifier to transition to established.
* @event: Asynchronous event.
*
* This routine should be invoked by users to notify the CM of relevant
* communication events. Events that should be reported to the CM and
* when to report them are:
*
* IB_EVENT_COMM_EST - Used when a message is received on a connected
* QP before an RTU has been received.
*/
int rdma_notify(struct rdma_cm_id *id, enum ib_event_type event);
/**
* rdma_reject - Called to reject a connection request or response.
*/

3
include/rdma/rdma_cm_ib.h
View File

@ -44,4 +44,7 @@
int rdma_set_ib_paths(struct rdma_cm_id *id,
struct ib_sa_path_rec *path_rec, int num_paths);
/* Global qkey for UD QPs and multicast groups. */
#define RDMA_UD_QKEY 0x01234567
#endif /* RDMA_CM_IB_H */

206
include/rdma/rdma_user_cm.h Normal file
View File

@ -0,0 +1,206 @@
/*
* Copyright (c) 2005-2006 Intel Corporation. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef RDMA_USER_CM_H
#define RDMA_USER_CM_H
#include <linux/types.h>
#include <linux/in6.h>
#include <rdma/ib_user_verbs.h>
#include <rdma/ib_user_sa.h>
#define RDMA_USER_CM_ABI_VERSION 3
#define RDMA_MAX_PRIVATE_DATA 256
enum {
RDMA_USER_CM_CMD_CREATE_ID,
RDMA_USER_CM_CMD_DESTROY_ID,
RDMA_USER_CM_CMD_BIND_ADDR,
RDMA_USER_CM_CMD_RESOLVE_ADDR,
RDMA_USER_CM_CMD_RESOLVE_ROUTE,
RDMA_USER_CM_CMD_QUERY_ROUTE,
RDMA_USER_CM_CMD_CONNECT,
RDMA_USER_CM_CMD_LISTEN,
RDMA_USER_CM_CMD_ACCEPT,
RDMA_USER_CM_CMD_REJECT,
RDMA_USER_CM_CMD_DISCONNECT,
RDMA_USER_CM_CMD_INIT_QP_ATTR,
RDMA_USER_CM_CMD_GET_EVENT,
RDMA_USER_CM_CMD_GET_OPTION,
RDMA_USER_CM_CMD_SET_OPTION,
RDMA_USER_CM_CMD_NOTIFY
};
/*
* command ABI structures.
*/
struct rdma_ucm_cmd_hdr {
__u32 cmd;
__u16 in;
__u16 out;
};
struct rdma_ucm_create_id {
__u64 uid;
__u64 response;
__u16 ps;
__u8 reserved[6];
};
struct rdma_ucm_create_id_resp {
__u32 id;
};
struct rdma_ucm_destroy_id {
__u64 response;
__u32 id;
__u32 reserved;
};
struct rdma_ucm_destroy_id_resp {
__u32 events_reported;
};
struct rdma_ucm_bind_addr {
__u64 response;
struct sockaddr_in6 addr;
__u32 id;
};
struct rdma_ucm_resolve_addr {
struct sockaddr_in6 src_addr;
struct sockaddr_in6 dst_addr;
__u32 id;
__u32 timeout_ms;
};
struct rdma_ucm_resolve_route {
__u32 id;
__u32 timeout_ms;
};
struct rdma_ucm_query_route {
__u64 response;
__u32 id;
__u32 reserved;
};
struct rdma_ucm_query_route_resp {
__u64 node_guid;
struct ib_user_path_rec ib_route[2];
struct sockaddr_in6 src_addr;
struct sockaddr_in6 dst_addr;
__u32 num_paths;
__u8 port_num;
__u8 reserved[3];
};
struct rdma_ucm_conn_param {
__u32 qp_num;
__u32 reserved;
__u8 private_data[RDMA_MAX_PRIVATE_DATA];
__u8 private_data_len;
__u8 srq;
__u8 responder_resources;
__u8 initiator_depth;
__u8 flow_control;
__u8 retry_count;
__u8 rnr_retry_count;
__u8 valid;
};
struct rdma_ucm_ud_param {
__u32 qp_num;
__u32 qkey;
struct ib_uverbs_ah_attr ah_attr;
__u8 private_data[RDMA_MAX_PRIVATE_DATA];
__u8 private_data_len;
__u8 reserved[7];
};
struct rdma_ucm_connect {
struct rdma_ucm_conn_param conn_param;
__u32 id;
__u32 reserved;
};
struct rdma_ucm_listen {
__u32 id;
__u32 backlog;
};
struct rdma_ucm_accept {
__u64 uid;
struct rdma_ucm_conn_param conn_param;
__u32 id;
__u32 reserved;
};
struct rdma_ucm_reject {
__u32 id;
__u8 private_data_len;
__u8 reserved[3];
__u8 private_data[RDMA_MAX_PRIVATE_DATA];
};
struct rdma_ucm_disconnect {
__u32 id;
};
struct rdma_ucm_init_qp_attr {
__u64 response;
__u32 id;
__u32 qp_state;
};
struct rdma_ucm_notify {
__u32 id;
__u32 event;
};
struct rdma_ucm_get_event {
__u64 response;
};
struct rdma_ucm_event_resp {
__u64 uid;
__u32 id;
__u32 event;
__u32 status;
union {
struct rdma_ucm_conn_param conn;
struct rdma_ucm_ud_param ud;
} param;
};
#endif /* RDMA_USER_CM_H */