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

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  RDMA/cma: Replace global lock in rdma_destroy_id() with id-specific one
  IB/cm: Cancel pending LAP message when exiting IB_CM_ESTABLISH state
  IB/cm: Bump reference count on cm_id before invoking callback
  RDMA/cma: Fix crash in request handlers
  IB/ipath: Don't reset disabled devices
  IB/qib: Fix M_Key field in SubnGet and SubnGetResp MADs
  IB/qib: Set default LE2 value for active cables to 0
  RDMA/cxgb4: Debugfs dump_qp() updates
  RDMA/cxgb4: Dispatch FATAL event on EEH errors
  RDMA/cxgb4: Use ULP_MODE_TCPDDP
  RDMA/cxgb4: Enable on-chip SQ support by default
  RDMA/cxgb4: Do CIDX_INC updates every 1/16 CQ depth CQE reaps
  RDMA/cxgb4: Remove db_drop_task
  RDMA/cxgb4: Turn on delayed ACK
  IB/qib: Return correct MAD when setting link width to 255
This commit is contained in:
Linus Torvalds 2011-03-16 09:24:25 -07:00
parent 0f6e0e8448 043332cf28
commit 48d5f67318
12 changed files with 102 additions and 48 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
drivers/infiniband/core/cm.c
View File

@ -1988,6 +1988,10 @@ int ib_send_cm_dreq(struct ib_cm_id *cm_id,
goto out;
}
if (cm_id->lap_state == IB_CM_LAP_SENT ||
cm_id->lap_state == IB_CM_MRA_LAP_RCVD)
ib_cancel_mad(cm_id_priv->av.port->mad_agent, cm_id_priv->msg);
ret = cm_alloc_msg(cm_id_priv, &msg);
if (ret) {
cm_enter_timewait(cm_id_priv);
@ -2129,6 +2133,10 @@ static int cm_dreq_handler(struct cm_work *work)
ib_cancel_mad(cm_id_priv->av.port->mad_agent, cm_id_priv->msg);
break;
case IB_CM_ESTABLISHED:
if (cm_id_priv->id.lap_state == IB_CM_LAP_SENT ||
cm_id_priv->id.lap_state == IB_CM_MRA_LAP_RCVD)
ib_cancel_mad(cm_id_priv->av.port->mad_agent, cm_id_priv->msg);
break;
case IB_CM_MRA_REP_RCVD:
break;
case IB_CM_TIMEWAIT:
@ -2349,9 +2357,18 @@ static int cm_rej_handler(struct cm_work *work)
/* fall through */
case IB_CM_REP_RCVD:
case IB_CM_MRA_REP_SENT:
case IB_CM_ESTABLISHED:
cm_enter_timewait(cm_id_priv);
break;
case IB_CM_ESTABLISHED:
if (cm_id_priv->id.lap_state == IB_CM_LAP_UNINIT ||
cm_id_priv->id.lap_state == IB_CM_LAP_SENT) {
if (cm_id_priv->id.lap_state == IB_CM_LAP_SENT)
ib_cancel_mad(cm_id_priv->av.port->mad_agent,
cm_id_priv->msg);
cm_enter_timewait(cm_id_priv);
break;
}
/* fall through */
default:
spin_unlock_irq(&cm_id_priv->lock);
ret = -EINVAL;
@ -2989,6 +3006,7 @@ static int cm_sidr_req_handler(struct cm_work *work)
goto out; /* No match. */
}
atomic_inc(&cur_cm_id_priv->refcount);
atomic_inc(&cm_id_priv->refcount);
spin_unlock_irq(&cm.lock);
cm_id_priv->id.cm_handler = cur_cm_id_priv->id.cm_handler;

58
drivers/infiniband/core/cma.c
View File

@ -308,11 +308,13 @@ static inline void release_mc(struct kref *kref)
kfree(mc);
}
static void cma_detach_from_dev(struct rdma_id_private *id_priv)
static void cma_release_dev(struct rdma_id_private *id_priv)
{
mutex_lock(&lock);
list_del(&id_priv->list);
cma_deref_dev(id_priv->cma_dev);
id_priv->cma_dev = NULL;
mutex_unlock(&lock);
}
static int cma_set_qkey(struct rdma_id_private *id_priv)
@ -373,6 +375,7 @@ static int cma_acquire_dev(struct rdma_id_private *id_priv)
enum rdma_link_layer dev_ll = dev_addr->dev_type == ARPHRD_INFINIBAND ?
IB_LINK_LAYER_INFINIBAND : IB_LINK_LAYER_ETHERNET;
mutex_lock(&lock);
iboe_addr_get_sgid(dev_addr, &iboe_gid);
memcpy(&gid, dev_addr->src_dev_addr +
rdma_addr_gid_offset(dev_addr), sizeof gid);
@ -398,6 +401,7 @@ out:
if (!ret)
cma_attach_to_dev(id_priv, cma_dev);
mutex_unlock(&lock);
return ret;
}
@ -904,9 +908,14 @@ void rdma_destroy_id(struct rdma_cm_id *id)
state = cma_exch(id_priv, CMA_DESTROYING);
cma_cancel_operation(id_priv, state);
mutex_lock(&lock);
/*
* Wait for any active callback to finish. New callbacks will find
* the id_priv state set to destroying and abort.
*/
mutex_lock(&id_priv->handler_mutex);
mutex_unlock(&id_priv->handler_mutex);
if (id_priv->cma_dev) {
mutex_unlock(&lock);
switch (rdma_node_get_transport(id_priv->id.device->node_type)) {
case RDMA_TRANSPORT_IB:
if (id_priv->cm_id.ib && !IS_ERR(id_priv->cm_id.ib))
@ -920,10 +929,8 @@ void rdma_destroy_id(struct rdma_cm_id *id)
break;
}
cma_leave_mc_groups(id_priv);
mutex_lock(&lock);
cma_detach_from_dev(id_priv);
cma_release_dev(id_priv);
}
mutex_unlock(&lock);
cma_release_port(id_priv);
cma_deref_id(id_priv);
@ -1200,9 +1207,7 @@ static int cma_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
}
mutex_lock_nested(&conn_id->handler_mutex, SINGLE_DEPTH_NESTING);
mutex_lock(&lock);
ret = cma_acquire_dev(conn_id);
mutex_unlock(&lock);
if (ret)
goto release_conn_id;
@ -1210,6 +1215,11 @@ 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;
/*
* Protect against the user destroying conn_id from another thread
* until we're done accessing it.
*/
atomic_inc(&conn_id->refcount);
ret = conn_id->id.event_handler(&conn_id->id, &event);
if (!ret) {
/*
@ -1222,8 +1232,10 @@ static int cma_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
ib_send_cm_mra(cm_id, CMA_CM_MRA_SETTING, NULL, 0);
mutex_unlock(&lock);
mutex_unlock(&conn_id->handler_mutex);
cma_deref_id(conn_id);
goto out;
}
cma_deref_id(conn_id);
/* Destroy the CM ID by returning a non-zero value. */
conn_id->cm_id.ib = NULL;
@ -1394,9 +1406,7 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id,
goto out;
}
mutex_lock(&lock);
ret = cma_acquire_dev(conn_id);
mutex_unlock(&lock);
if (ret) {
mutex_unlock(&conn_id->handler_mutex);
rdma_destroy_id(new_cm_id);
@ -1425,17 +1435,25 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id,
event.param.conn.private_data_len = iw_event->private_data_len;
event.param.conn.initiator_depth = attr.max_qp_init_rd_atom;
event.param.conn.responder_resources = attr.max_qp_rd_atom;
/*
* Protect against the user destroying conn_id from another thread
* until we're done accessing it.
*/
atomic_inc(&conn_id->refcount);
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;
cma_exch(conn_id, CMA_DESTROYING);
mutex_unlock(&conn_id->handler_mutex);
cma_deref_id(conn_id);
rdma_destroy_id(&conn_id->id);
goto out;
}
mutex_unlock(&conn_id->handler_mutex);
cma_deref_id(conn_id);
out:
if (dev)
@ -1951,20 +1969,11 @@ static void addr_handler(int status, struct sockaddr *src_addr,
memset(&event, 0, sizeof event);
mutex_lock(&id_priv->handler_mutex);
/*
* Grab mutex to block rdma_destroy_id() from removing the device while
* we're trying to acquire it.
*/
mutex_lock(&lock);
if (!cma_comp_exch(id_priv, CMA_ADDR_QUERY, CMA_ADDR_RESOLVED)) {
mutex_unlock(&lock);
if (!cma_comp_exch(id_priv, CMA_ADDR_QUERY, CMA_ADDR_RESOLVED))
goto out;
}
if (!status && !id_priv->cma_dev)
status = cma_acquire_dev(id_priv);
mutex_unlock(&lock);
if (status) {
if (!cma_comp_exch(id_priv, CMA_ADDR_RESOLVED, CMA_ADDR_BOUND))
@ -2265,9 +2274,7 @@ int rdma_bind_addr(struct rdma_cm_id *id, struct sockaddr *addr)
if (ret)
goto err1;
mutex_lock(&lock);
ret = cma_acquire_dev(id_priv);
mutex_unlock(&lock);
if (ret)
goto err1;
}
@ -2279,11 +2286,8 @@ int rdma_bind_addr(struct rdma_cm_id *id, struct sockaddr *addr)
return 0;
err2:
if (id_priv->cma_dev) {
mutex_lock(&lock);
cma_detach_from_dev(id_priv);
mutex_unlock(&lock);
}
if (id_priv->cma_dev)
cma_release_dev(id_priv);
err1:
cma_comp_exch(id_priv, CMA_ADDR_BOUND, CMA_IDLE);
return ret;

6
drivers/infiniband/hw/cxgb4/cm.c
View File

@ -61,9 +61,9 @@ static char *states[] = {
NULL,
};
static int dack_mode;
static int dack_mode = 1;
module_param(dack_mode, int, 0644);
MODULE_PARM_DESC(dack_mode, "Delayed ack mode (default=0)");
MODULE_PARM_DESC(dack_mode, "Delayed ack mode (default=1)");
int c4iw_max_read_depth = 8;
module_param(c4iw_max_read_depth, int, 0644);
@ -482,6 +482,7 @@ static int send_connect(struct c4iw_ep *ep)
TX_CHAN(ep->tx_chan) |
SMAC_SEL(ep->smac_idx) |
DSCP(ep->tos) |
ULP_MODE(ULP_MODE_TCPDDP) |
RCV_BUFSIZ(rcv_win>>10);
opt2 = RX_CHANNEL(0) |
RSS_QUEUE_VALID | RSS_QUEUE(ep->rss_qid);
@ -1274,6 +1275,7 @@ static void accept_cr(struct c4iw_ep *ep, __be32 peer_ip, struct sk_buff *skb,
TX_CHAN(ep->tx_chan) |
SMAC_SEL(ep->smac_idx) |
DSCP(ep->tos) |
ULP_MODE(ULP_MODE_TCPDDP) |
RCV_BUFSIZ(rcv_win>>10);
opt2 = RX_CHANNEL(0) |
RSS_QUEUE_VALID | RSS_QUEUE(ep->rss_qid);

24
drivers/infiniband/hw/cxgb4/device.c
View File

@ -87,17 +87,22 @@ static int dump_qp(int id, void *p, void *data)
return 1;
if (qp->ep)
cc = snprintf(qpd->buf + qpd->pos, space, "qp id %u state %u "
cc = snprintf(qpd->buf + qpd->pos, space,
"qp sq id %u rq id %u state %u onchip %u "
"ep tid %u state %u %pI4:%u->%pI4:%u\n",
qp->wq.sq.qid, (int)qp->attr.state,
qp->wq.sq.qid, qp->wq.rq.qid, (int)qp->attr.state,
qp->wq.sq.flags & T4_SQ_ONCHIP,
qp->ep->hwtid, (int)qp->ep->com.state,
&qp->ep->com.local_addr.sin_addr.s_addr,
ntohs(qp->ep->com.local_addr.sin_port),
&qp->ep->com.remote_addr.sin_addr.s_addr,
ntohs(qp->ep->com.remote_addr.sin_port));
else
cc = snprintf(qpd->buf + qpd->pos, space, "qp id %u state %u\n",
qp->wq.sq.qid, (int)qp->attr.state);
cc = snprintf(qpd->buf + qpd->pos, space,
"qp sq id %u rq id %u state %u onchip %u\n",
qp->wq.sq.qid, qp->wq.rq.qid,
(int)qp->attr.state,
qp->wq.sq.flags & T4_SQ_ONCHIP);
if (cc < space)
qpd->pos += cc;
return 0;
@ -368,7 +373,6 @@ static void c4iw_rdev_close(struct c4iw_rdev *rdev)
static void c4iw_remove(struct c4iw_dev *dev)
{
PDBG("%s c4iw_dev %p\n", __func__, dev);
cancel_delayed_work_sync(&dev->db_drop_task);
list_del(&dev->entry);
if (dev->registered)
c4iw_unregister_device(dev);
@ -523,8 +527,16 @@ static int c4iw_uld_state_change(void *handle, enum cxgb4_state new_state)
case CXGB4_STATE_START_RECOVERY:
printk(KERN_INFO MOD "%s: Fatal Error\n",
pci_name(dev->rdev.lldi.pdev));
if (dev->registered)
dev->rdev.flags |= T4_FATAL_ERROR;
if (dev->registered) {
struct ib_event event;
memset(&event, 0, sizeof event);
event.event = IB_EVENT_DEVICE_FATAL;
event.device = &dev->ibdev;
ib_dispatch_event(&event);
c4iw_unregister_device(dev);
}
break;
case CXGB4_STATE_DETACH:
printk(KERN_INFO MOD "%s: Detach\n",

1
drivers/infiniband/hw/cxgb4/iw_cxgb4.h
View File

@ -176,7 +176,6 @@ struct c4iw_dev {
struct idr mmidr;
spinlock_t lock;
struct list_head entry;
struct delayed_work db_drop_task;
struct dentry *debugfs_root;
u8 registered;
};

4
drivers/infiniband/hw/cxgb4/qp.c
View File

@ -31,9 +31,9 @@
*/
#include "iw_cxgb4.h"
static int ocqp_support;
static int ocqp_support = 1;
module_param(ocqp_support, int, 0644);
MODULE_PARM_DESC(ocqp_support, "Support on-chip SQs (default=0)");
MODULE_PARM_DESC(ocqp_support, "Support on-chip SQs (default=1)");
static void set_state(struct c4iw_qp *qhp, enum c4iw_qp_state state)
{

8
drivers/infiniband/hw/cxgb4/t4.h
View File

@ -507,8 +507,14 @@ static inline void t4_swcq_consume(struct t4_cq *cq)
static inline void t4_hwcq_consume(struct t4_cq *cq)
{
cq->bits_type_ts = cq->queue[cq->cidx].bits_type_ts;
if (++cq->cidx_inc == cq->size)
if (++cq->cidx_inc == (cq->size >> 4)) {
u32 val;
val = SEINTARM(0) | CIDXINC(cq->cidx_inc) | TIMERREG(7) |
INGRESSQID(cq->cqid);
writel(val, cq->gts);
cq->cidx_inc = 0;
}
if (++cq->cidx == cq->size) {
cq->cidx = 0;
cq->gen ^= 1;

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

@ -557,6 +557,7 @@ static ssize_t store_reset(struct device *dev,
dev_info(dev,"Unit %d is disabled, can't reset\n",
dd->ipath_unit);
ret = -EINVAL;
goto bail;
}
ret = ipath_reset_device(dd->ipath_unit);
bail:

13
drivers/infiniband/hw/qib/qib_iba7322.c
View File

@ -5582,9 +5582,16 @@ static void qsfp_7322_event(struct work_struct *work)
* even on failure to read cable information. We don't
* get here for QME, so IS_QME check not needed here.
*/
le2 = (!ret && qd->cache.atten[1] >= qib_long_atten &&
!ppd->dd->cspec->r1 && QSFP_IS_CU(qd->cache.tech)) ?
LE2_5m : LE2_DEFAULT;
if (!ret && !ppd->dd->cspec->r1) {
if (QSFP_IS_ACTIVE_FAR(qd->cache.tech))
le2 = LE2_QME;
else if (qd->cache.atten[1] >= qib_long_atten &&
QSFP_IS_CU(qd->cache.tech))
le2 = LE2_5m;
else
le2 = LE2_DEFAULT;
} else
le2 = LE2_DEFAULT;
ibsd_wr_allchans(ppd, 13, (le2 << 7), BMASK(9, 7));
init_txdds_table(ppd, 0);
}

12
drivers/infiniband/hw/qib/qib_mad.c
View File

@ -464,8 +464,9 @@ static int subn_get_portinfo(struct ib_smp *smp, struct ib_device *ibdev,
memset(smp->data, 0, sizeof(smp->data));
/* Only return the mkey if the protection field allows it. */
if (smp->method == IB_MGMT_METHOD_SET || ibp->mkey == smp->mkey ||
ibp->mkeyprot == 0)
if (!(smp->method == IB_MGMT_METHOD_GET &&
ibp->mkey != smp->mkey &&
ibp->mkeyprot == 1))
pip->mkey = ibp->mkey;
pip->gid_prefix = ibp->gid_prefix;
lid = ppd->lid;
@ -705,7 +706,7 @@ static int subn_set_portinfo(struct ib_smp *smp, struct ib_device *ibdev,
lwe = pip->link_width_enabled;
if (lwe) {
if (lwe == 0xFF)
lwe = ppd->link_width_supported;
set_link_width_enabled(ppd, ppd->link_width_supported);
else if (lwe >= 16 || (lwe & ~ppd->link_width_supported))
smp->status |= IB_SMP_INVALID_FIELD;
else if (lwe != ppd->link_width_enabled)
@ -720,7 +721,8 @@ static int subn_set_portinfo(struct ib_smp *smp, struct ib_device *ibdev,
* speeds.
*/
if (lse == 15)
lse = ppd->link_speed_supported;
set_link_speed_enabled(ppd,
ppd->link_speed_supported);
else if (lse >= 8 || (lse & ~ppd->link_speed_supported))
smp->status |= IB_SMP_INVALID_FIELD;
else if (lse != ppd->link_speed_enabled)
@ -849,7 +851,7 @@ static int subn_set_portinfo(struct ib_smp *smp, struct ib_device *ibdev,
if (clientrereg)
pip->clientrereg_resv_subnetto |= 0x80;
goto done;
goto get_only;
err:
smp->status |= IB_SMP_INVALID_FIELD;

2
drivers/infiniband/hw/qib/qib_qsfp.h
View File

@ -79,6 +79,8 @@
extern const char *const qib_qsfp_devtech[16];
/* Active Equalization includes fiber, copper full EQ, and copper near Eq */
#define QSFP_IS_ACTIVE(tech) ((0xA2FF >> ((tech) >> 4)) & 1)
/* Active Equalization includes fiber, copper full EQ, and copper far Eq */
#define QSFP_IS_ACTIVE_FAR(tech) ((0x32FF >> ((tech) >> 4)) & 1)
/* Attenuation should be valid for copper other than full/near Eq */
#define QSFP_HAS_ATTEN(tech) ((0x4D00 >> ((tech) >> 4)) & 1)
/* Length is only valid if technology is "copper" */

1
drivers/net/cxgb4/t4_msg.h
View File

@ -123,6 +123,7 @@ enum {
ULP_MODE_NONE = 0,
ULP_MODE_ISCSI = 2,
ULP_MODE_RDMA = 4,
ULP_MODE_TCPDDP = 5,
ULP_MODE_FCOE = 6,
};