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Subject[GIT PULL] post-2.6.17-rc1 fixes
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Date
Linus, please pull from

master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband.git for-linus

This tree is also available from kernel.org mirrors at:

git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband.git for-linus

This includes some changes that I asked you to pull last week right
before you left. There are a couple of largish changes in here, but I
think they are all needed:
- the IPoIB ring size tunables fix horrible performance IBM sees
- the static rate change fixes big problems on mixed rate networks
- the callback refcounting changes are fixing possible crashes on
module unload

The exact changes and patch are:

Eli Cohen:
IPoIB: Wait for join to finish before freeing mcast struct
IPoIB: Close race in ipoib_flush_paths()

Jack Morgenstein:
IB: simplify static rate encoding

Michael S. Tsirkin:
IB/mad: fix oops in cancel_mads
IPoIB: Consolidate private neighbour data handling
IB/mthca: Disable tuning PCI read burst size
IB/sa: Don't let a module be unloaded with a callback running

Roland Dreier:
IPoIB: Always build debugging code unless CONFIG_EMBEDDED=y
IB/mthca: Always build debugging code unless CONFIG_EMBEDDED=y
IB/srp: Fix memory leak in options parsing
IPoIB: Use spin_lock_irq() instead of spin_lock_irqsave()

Sean Hefty:
IB/cm: Don't let a module be unloaded with a callback running

Shirley Ma:
IPoIB: Make send and receive queue sizes tunable

drivers/infiniband/core/cm.c | 31 +++-
drivers/infiniband/core/mad.c | 2
drivers/infiniband/core/sa_query.c | 93 +++++++-----
drivers/infiniband/core/verbs.c | 34 ++++
drivers/infiniband/hw/mthca/Kconfig | 11 +
drivers/infiniband/hw/mthca/Makefile | 4 -
drivers/infiniband/hw/mthca/mthca_av.c | 96 ++++++++++++
drivers/infiniband/hw/mthca/mthca_cmd.c | 4 +
drivers/infiniband/hw/mthca/mthca_cmd.h | 1
drivers/infiniband/hw/mthca/mthca_dev.h | 21 ++-
drivers/infiniband/hw/mthca/mthca_mad.c | 42 +++++
drivers/infiniband/hw/mthca/mthca_main.c | 27 ++++
drivers/infiniband/hw/mthca/mthca_provider.h | 3
drivers/infiniband/hw/mthca/mthca_qp.c | 46 ++++--
drivers/infiniband/ulp/ipoib/Kconfig | 3
drivers/infiniband/ulp/ipoib/ipoib.h | 7 +
drivers/infiniband/ulp/ipoib/ipoib_fs.c | 2
drivers/infiniband/ulp/ipoib/ipoib_ib.c | 22 +--
drivers/infiniband/ulp/ipoib/ipoib_main.c | 88 +++++++----
drivers/infiniband/ulp/ipoib/ipoib_multicast.c | 58 +++-----
drivers/infiniband/ulp/ipoib/ipoib_verbs.c | 6 -
drivers/infiniband/ulp/srp/ib_srp.c | 1
include/rdma/ib_cm.h | 13 +-
include/rdma/ib_sa.h | 185 ++++++++++++++++--------
include/rdma/ib_verbs.h | 28 ++++
25 files changed, 603 insertions(+), 225 deletions(-)

diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index 7cfedb8..66d1cb3 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -118,6 +118,7 @@ struct cm_timewait_info {

struct cm_id_private {
struct ib_cm_id id;
+ struct module *owner;

struct rb_node service_node;
struct rb_node sidr_id_node;
@@ -538,9 +539,9 @@ static void cm_reject_sidr_req(struct cm
ib_send_cm_sidr_rep(&cm_id_priv->id, &param);
}

-struct ib_cm_id *ib_create_cm_id(struct ib_device *device,
- ib_cm_handler cm_handler,
- void *context)
+struct ib_cm_id *__ib_create_cm_id(struct ib_device *device,
+ ib_cm_handler cm_handler,
+ void *context, struct module *owner)
{
struct cm_id_private *cm_id_priv;
int ret;
@@ -549,6 +550,7 @@ struct ib_cm_id *ib_create_cm_id(struct
if (!cm_id_priv)
return ERR_PTR(-ENOMEM);

+ cm_id_priv->owner = owner;
cm_id_priv->id.state = IB_CM_IDLE;
cm_id_priv->id.device = device;
cm_id_priv->id.cm_handler = cm_handler;
@@ -569,7 +571,7 @@ error:
kfree(cm_id_priv);
return ERR_PTR(-ENOMEM);
}
-EXPORT_SYMBOL(ib_create_cm_id);
+EXPORT_SYMBOL(__ib_create_cm_id);

static struct cm_work * cm_dequeue_work(struct cm_id_private *cm_id_priv)
{
@@ -1086,6 +1088,18 @@ static void cm_format_req_event(struct c
work->cm_event.private_data = &req_msg->private_data;
}

+static int invoke_cm_handler(struct cm_id_private *cm_id_priv,
+ struct ib_cm_event *event)
+{
+ int ret;
+
+ BUG_ON(!try_module_get(cm_id_priv->owner));
+ ret = cm_id_priv->id.cm_handler(&cm_id_priv->id, event);
+ module_put(cm_id_priv->owner);
+
+ return ret;
+}
+
static void cm_process_work(struct cm_id_private *cm_id_priv,
struct cm_work *work)
{
@@ -1093,7 +1107,7 @@ static void cm_process_work(struct cm_id
int ret;

/* We will typically only have the current event to report. */
- ret = cm_id_priv->id.cm_handler(&cm_id_priv->id, &work->cm_event);
+ ret = invoke_cm_handler(cm_id_priv, &work->cm_event);
cm_free_work(work);

while (!ret && !atomic_add_negative(-1, &cm_id_priv->work_count)) {
@@ -1101,8 +1115,7 @@ static void cm_process_work(struct cm_id
work = cm_dequeue_work(cm_id_priv);
spin_unlock_irqrestore(&cm_id_priv->lock, flags);
BUG_ON(!work);
- ret = cm_id_priv->id.cm_handler(&cm_id_priv->id,
- &work->cm_event);
+ ret = invoke_cm_handler(cm_id_priv, &work->cm_event);
cm_free_work(work);
}
cm_deref_id(cm_id_priv);
@@ -1291,6 +1304,7 @@ static int cm_req_handler(struct cm_work
goto error2;
}

+ cm_id_priv->owner = listen_cm_id_priv->owner;
cm_id_priv->id.cm_handler = listen_cm_id_priv->id.cm_handler;
cm_id_priv->id.context = listen_cm_id_priv->id.context;
cm_id_priv->id.service_id = req_msg->service_id;
@@ -2662,6 +2676,7 @@ static int cm_sidr_req_handler(struct cm
atomic_inc(&cur_cm_id_priv->refcount);
spin_unlock_irqrestore(&cm.lock, flags);

+ cm_id_priv->owner = cur_cm_id_priv->owner;
cm_id_priv->id.cm_handler = cur_cm_id_priv->id.cm_handler;
cm_id_priv->id.context = cur_cm_id_priv->id.context;
cm_id_priv->id.service_id = sidr_req_msg->service_id;
@@ -2830,7 +2845,7 @@ static void cm_process_send_error(struct
cm_event.param.send_status = wc_status;

/* No other events can occur on the cm_id at this point. */
- ret = cm_id_priv->id.cm_handler(&cm_id_priv->id, &cm_event);
+ ret = invoke_cm_handler(cm_id_priv, &cm_event);
cm_free_msg(msg);
if (ret)
ib_destroy_cm_id(&cm_id_priv->id);
diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c
index ba54c85..3a702da 100644
--- a/drivers/infiniband/core/mad.c
+++ b/drivers/infiniband/core/mad.c
@@ -2311,6 +2311,7 @@ static void local_completions(void *data
local = list_entry(mad_agent_priv->local_list.next,
struct ib_mad_local_private,
completion_list);
+ list_del(&local->completion_list);
spin_unlock_irqrestore(&mad_agent_priv->lock, flags);
if (local->mad_priv) {
recv_mad_agent = local->recv_mad_agent;
@@ -2362,7 +2363,6 @@ local_send_completion:
&mad_send_wc);

spin_lock_irqsave(&mad_agent_priv->lock, flags);
- list_del(&local->completion_list);
atomic_dec(&mad_agent_priv->refcount);
if (!recv)
kmem_cache_free(ib_mad_cache, local->mad_priv);
diff --git a/drivers/infiniband/core/sa_query.c b/drivers/infiniband/core/sa_query.c
index 501cc05..c43ed75 100644
--- a/drivers/infiniband/core/sa_query.c
+++ b/drivers/infiniband/core/sa_query.c
@@ -74,6 +74,7 @@ struct ib_sa_device {
struct ib_sa_query {
void (*callback)(struct ib_sa_query *, int, struct ib_sa_mad *);
void (*release)(struct ib_sa_query *);
+ struct module *owner;
struct ib_sa_port *port;
struct ib_mad_send_buf *mad_buf;
struct ib_sa_sm_ah *sm_ah;
@@ -547,15 +548,16 @@ static void ib_sa_path_rec_release(struc
* error code. Otherwise it is a query ID that can be used to cancel
* the query.
*/
-int ib_sa_path_rec_get(struct ib_device *device, u8 port_num,
- struct ib_sa_path_rec *rec,
- ib_sa_comp_mask comp_mask,
- int timeout_ms, gfp_t gfp_mask,
- void (*callback)(int status,
- struct ib_sa_path_rec *resp,
- void *context),
- void *context,
- struct ib_sa_query **sa_query)
+int __ib_sa_path_rec_get(struct ib_device *device, u8 port_num,
+ struct ib_sa_path_rec *rec,
+ ib_sa_comp_mask comp_mask,
+ int timeout_ms, gfp_t gfp_mask,
+ void (*callback)(int status,
+ struct ib_sa_path_rec *resp,
+ void *context),
+ void *context,
+ struct module *owner,
+ struct ib_sa_query **sa_query)
{
struct ib_sa_path_query *query;
struct ib_sa_device *sa_dev = ib_get_client_data(device, &sa_client);
@@ -590,6 +592,7 @@ int ib_sa_path_rec_get(struct ib_device

query->sa_query.callback = callback ? ib_sa_path_rec_callback : NULL;
query->sa_query.release = ib_sa_path_rec_release;
+ query->sa_query.owner = owner;
query->sa_query.port = port;
mad->mad_hdr.method = IB_MGMT_METHOD_GET;
mad->mad_hdr.attr_id = cpu_to_be16(IB_SA_ATTR_PATH_REC);
@@ -613,7 +616,7 @@ err1:
kfree(query);
return ret;
}
-EXPORT_SYMBOL(ib_sa_path_rec_get);
+EXPORT_SYMBOL(__ib_sa_path_rec_get);

static void ib_sa_service_rec_callback(struct ib_sa_query *sa_query,
int status,
@@ -663,15 +666,16 @@ static void ib_sa_service_rec_release(st
* error code. Otherwise it is a request ID that can be used to cancel
* the query.
*/
-int ib_sa_service_rec_query(struct ib_device *device, u8 port_num, u8 method,
- struct ib_sa_service_rec *rec,
- ib_sa_comp_mask comp_mask,
- int timeout_ms, gfp_t gfp_mask,
- void (*callback)(int status,
- struct ib_sa_service_rec *resp,
- void *context),
- void *context,
- struct ib_sa_query **sa_query)
+int __ib_sa_service_rec_query(struct ib_device *device, u8 port_num, u8 method,
+ struct ib_sa_service_rec *rec,
+ ib_sa_comp_mask comp_mask,
+ int timeout_ms, gfp_t gfp_mask,
+ void (*callback)(int status,
+ struct ib_sa_service_rec *resp,
+ void *context),
+ void *context,
+ struct module *owner,
+ struct ib_sa_query **sa_query)
{
struct ib_sa_service_query *query;
struct ib_sa_device *sa_dev = ib_get_client_data(device, &sa_client);
@@ -711,6 +715,7 @@ int ib_sa_service_rec_query(struct ib_de

query->sa_query.callback = callback ? ib_sa_service_rec_callback : NULL;
query->sa_query.release = ib_sa_service_rec_release;
+ query->sa_query.owner = owner;
query->sa_query.port = port;
mad->mad_hdr.method = method;
mad->mad_hdr.attr_id = cpu_to_be16(IB_SA_ATTR_SERVICE_REC);
@@ -735,7 +740,7 @@ err1:
kfree(query);
return ret;
}
-EXPORT_SYMBOL(ib_sa_service_rec_query);
+EXPORT_SYMBOL(__ib_sa_service_rec_query);

static void ib_sa_mcmember_rec_callback(struct ib_sa_query *sa_query,
int status,
@@ -759,16 +764,17 @@ static void ib_sa_mcmember_rec_release(s
kfree(container_of(sa_query, struct ib_sa_mcmember_query, sa_query));
}

-int ib_sa_mcmember_rec_query(struct ib_device *device, u8 port_num,
- u8 method,
- struct ib_sa_mcmember_rec *rec,
- ib_sa_comp_mask comp_mask,
- int timeout_ms, gfp_t gfp_mask,
- void (*callback)(int status,
- struct ib_sa_mcmember_rec *resp,
- void *context),
- void *context,
- struct ib_sa_query **sa_query)
+int __ib_sa_mcmember_rec_query(struct ib_device *device, u8 port_num,
+ u8 method,
+ struct ib_sa_mcmember_rec *rec,
+ ib_sa_comp_mask comp_mask,
+ int timeout_ms, gfp_t gfp_mask,
+ void (*callback)(int status,
+ struct ib_sa_mcmember_rec *resp,
+ void *context),
+ void *context,
+ struct module *owner,
+ struct ib_sa_query **sa_query)
{
struct ib_sa_mcmember_query *query;
struct ib_sa_device *sa_dev = ib_get_client_data(device, &sa_client);
@@ -803,6 +809,7 @@ int ib_sa_mcmember_rec_query(struct ib_d

query->sa_query.callback = callback ? ib_sa_mcmember_rec_callback : NULL;
query->sa_query.release = ib_sa_mcmember_rec_release;
+ query->sa_query.owner = owner;
query->sa_query.port = port;
mad->mad_hdr.method = method;
mad->mad_hdr.attr_id = cpu_to_be16(IB_SA_ATTR_MC_MEMBER_REC);
@@ -827,7 +834,15 @@ err1:
kfree(query);
return ret;
}
-EXPORT_SYMBOL(ib_sa_mcmember_rec_query);
+EXPORT_SYMBOL(__ib_sa_mcmember_rec_query);
+
+static void call_sa_callback(struct ib_sa_query *query, int status,
+ struct ib_sa_mad *mad)
+{
+ BUG_ON(!try_module_get(query->owner));
+ query->callback(query, status, mad);
+ module_put(query->owner);
+}

static void send_handler(struct ib_mad_agent *agent,
struct ib_mad_send_wc *mad_send_wc)
@@ -841,13 +856,13 @@ static void send_handler(struct ib_mad_a
/* No callback -- already got recv */
break;
case IB_WC_RESP_TIMEOUT_ERR:
- query->callback(query, -ETIMEDOUT, NULL);
+ call_sa_callback(query, -ETIMEDOUT, NULL);
break;
case IB_WC_WR_FLUSH_ERR:
- query->callback(query, -EINTR, NULL);
+ call_sa_callback(query, -EINTR, NULL);
break;
default:
- query->callback(query, -EIO, NULL);
+ call_sa_callback(query, -EIO, NULL);
break;
}

@@ -871,12 +886,12 @@ static void recv_handler(struct ib_mad_a

if (query->callback) {
if (mad_recv_wc->wc->status == IB_WC_SUCCESS)
- query->callback(query,
- mad_recv_wc->recv_buf.mad->mad_hdr.status ?
- -EINVAL : 0,
- (struct ib_sa_mad *) mad_recv_wc->recv_buf.mad);
+ call_sa_callback(query,
+ mad_recv_wc->recv_buf.mad->mad_hdr.status ?
+ -EINVAL : 0,
+ (struct ib_sa_mad *) mad_recv_wc->recv_buf.mad);
else
- query->callback(query, -EIO, NULL);
+ call_sa_callback(query, -EIO, NULL);
}

ib_free_recv_mad(mad_recv_wc);
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index cae0845..b78e7dc 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -45,6 +45,40 @@
#include <rdma/ib_verbs.h>
#include <rdma/ib_cache.h>

+int ib_rate_to_mult(enum ib_rate rate)
+{
+ switch (rate) {
+ case IB_RATE_2_5_GBPS: return 1;
+ case IB_RATE_5_GBPS: return 2;
+ case IB_RATE_10_GBPS: return 4;
+ case IB_RATE_20_GBPS: return 8;
+ case IB_RATE_30_GBPS: return 12;
+ case IB_RATE_40_GBPS: return 16;
+ case IB_RATE_60_GBPS: return 24;
+ case IB_RATE_80_GBPS: return 32;
+ case IB_RATE_120_GBPS: return 48;
+ default: return -1;
+ }
+}
+EXPORT_SYMBOL(ib_rate_to_mult);
+
+enum ib_rate mult_to_ib_rate(int mult)
+{
+ switch (mult) {
+ case 1: return IB_RATE_2_5_GBPS;
+ case 2: return IB_RATE_5_GBPS;
+ case 4: return IB_RATE_10_GBPS;
+ case 8: return IB_RATE_20_GBPS;
+ case 12: return IB_RATE_30_GBPS;
+ case 16: return IB_RATE_40_GBPS;
+ case 24: return IB_RATE_60_GBPS;
+ case 32: return IB_RATE_80_GBPS;
+ case 48: return IB_RATE_120_GBPS;
+ default: return IB_RATE_PORT_CURRENT;
+ }
+}
+EXPORT_SYMBOL(mult_to_ib_rate);
+
/* Protection domains */

struct ib_pd *ib_alloc_pd(struct ib_device *device)
diff --git a/drivers/infiniband/hw/mthca/Kconfig b/drivers/infiniband/hw/mthca/Kconfig
index e88be85..9aa5a44 100644
--- a/drivers/infiniband/hw/mthca/Kconfig
+++ b/drivers/infiniband/hw/mthca/Kconfig
@@ -7,10 +7,11 @@ config INFINIBAND_MTHCA
("Tavor") and the MT25208 PCI Express HCA ("Arbel").

config INFINIBAND_MTHCA_DEBUG
- bool "Verbose debugging output"
+ bool "Verbose debugging output" if EMBEDDED
depends on INFINIBAND_MTHCA
- default n
+ default y
---help---
- This option causes the mthca driver produce a bunch of debug
- messages. Select this is you are developing the driver or
- trying to diagnose a problem.
+ This option causes debugging code to be compiled into the
+ mthca driver. The output can be turned on via the
+ debug_level module parameter (which can also be set after
+ the driver is loaded through sysfs).
diff --git a/drivers/infiniband/hw/mthca/Makefile b/drivers/infiniband/hw/mthca/Makefile
index 47ec5a7..e388d95 100644
--- a/drivers/infiniband/hw/mthca/Makefile
+++ b/drivers/infiniband/hw/mthca/Makefile
@@ -1,7 +1,3 @@
-ifdef CONFIG_INFINIBAND_MTHCA_DEBUG
-EXTRA_CFLAGS += -DDEBUG
-endif
-
obj-$(CONFIG_INFINIBAND_MTHCA) += ib_mthca.o

ib_mthca-y := mthca_main.o mthca_cmd.o mthca_profile.o mthca_reset.o \
diff --git a/drivers/infiniband/hw/mthca/mthca_av.c b/drivers/infiniband/hw/mthca/mthca_av.c
index bc5bdcb..87e7c63 100644
--- a/drivers/infiniband/hw/mthca/mthca_av.c
+++ b/drivers/infiniband/hw/mthca/mthca_av.c
@@ -42,6 +42,20 @@

#include "mthca_dev.h"

+enum {
+ MTHCA_RATE_TAVOR_FULL = 0,
+ MTHCA_RATE_TAVOR_1X = 1,
+ MTHCA_RATE_TAVOR_4X = 2,
+ MTHCA_RATE_TAVOR_1X_DDR = 3
+};
+
+enum {
+ MTHCA_RATE_MEMFREE_FULL = 0,
+ MTHCA_RATE_MEMFREE_QUARTER = 1,
+ MTHCA_RATE_MEMFREE_EIGHTH = 2,
+ MTHCA_RATE_MEMFREE_HALF = 3
+};
+
struct mthca_av {
__be32 port_pd;
u8 reserved1;
@@ -55,6 +69,86 @@ struct mthca_av {
__be32 dgid[4];
};

+static enum ib_rate memfree_rate_to_ib(u8 mthca_rate, u8 port_rate)
+{
+ switch (mthca_rate) {
+ case MTHCA_RATE_MEMFREE_EIGHTH: return port_rate / 8;
+ case MTHCA_RATE_MEMFREE_QUARTER: return port_rate / 4;
+ case MTHCA_RATE_MEMFREE_HALF: return port_rate / 2;
+ case MTHCA_RATE_MEMFREE_FULL: return port_rate;
+ default: return port_rate;
+ }
+}
+
+static enum ib_rate tavor_rate_to_ib(u8 mthca_rate, u8 port_rate)
+{
+ switch (mthca_rate) {
+ case MTHCA_RATE_TAVOR_1X: return IB_RATE_2_5_GBPS;
+ case MTHCA_RATE_TAVOR_1X_DDR: return IB_RATE_5_GBPS;
+ case MTHCA_RATE_TAVOR_4X: return IB_RATE_10_GBPS;
+ default: return port_rate;
+ }
+}
+
+enum ib_rate mthca_rate_to_ib(struct mthca_dev *dev, u8 mthca_rate, u8 port)
+{
+ if (mthca_is_memfree(dev)) {
+ /* Handle old Arbel FW */
+ if (dev->limits.stat_rate_support == 0x3 && mthca_rate)
+ return IB_RATE_2_5_GBPS;
+
+ return memfree_rate_to_ib(mthca_rate, dev->rate[port - 1]);
+ } else
+ return tavor_rate_to_ib(mthca_rate, dev->rate[port - 1]);
+}
+
+static u8 ib_rate_to_memfree(u8 req_rate, u8 cur_rate)
+{
+ if (cur_rate <= req_rate)
+ return 0;
+
+ /*
+ * Inter-packet delay (IPD) to get from rate X down to a rate
+ * no more than Y is (X - 1) / Y.
+ */
+ switch ((cur_rate - 1) / req_rate) {
+ case 0: return MTHCA_RATE_MEMFREE_FULL;
+ case 1: return MTHCA_RATE_MEMFREE_HALF;
+ case 2: /* fall through */
+ case 3: return MTHCA_RATE_MEMFREE_QUARTER;
+ default: return MTHCA_RATE_MEMFREE_EIGHTH;
+ }
+}
+
+static u8 ib_rate_to_tavor(u8 static_rate)
+{
+ switch (static_rate) {
+ case IB_RATE_2_5_GBPS: return MTHCA_RATE_TAVOR_1X;
+ case IB_RATE_5_GBPS: return MTHCA_RATE_TAVOR_1X_DDR;
+ case IB_RATE_10_GBPS: return MTHCA_RATE_TAVOR_4X;
+ default: return MTHCA_RATE_TAVOR_FULL;
+ }
+}
+
+u8 mthca_get_rate(struct mthca_dev *dev, int static_rate, u8 port)
+{
+ u8 rate;
+
+ if (!static_rate || ib_rate_to_mult(static_rate) >= dev->rate[port - 1])
+ return 0;
+
+ if (mthca_is_memfree(dev))
+ rate = ib_rate_to_memfree(ib_rate_to_mult(static_rate),
+ dev->rate[port - 1]);
+ else
+ rate = ib_rate_to_tavor(static_rate);
+
+ if (!(dev->limits.stat_rate_support & (1 << rate)))
+ rate = 1;
+
+ return rate;
+}
+
int mthca_create_ah(struct mthca_dev *dev,
struct mthca_pd *pd,
struct ib_ah_attr *ah_attr,
@@ -107,7 +201,7 @@ on_hca_fail:
av->g_slid = ah_attr->src_path_bits;
av->dlid = cpu_to_be16(ah_attr->dlid);
av->msg_sr = (3 << 4) | /* 2K message */
- ah_attr->static_rate;
+ mthca_get_rate(dev, ah_attr->static_rate, ah_attr->port_num);
av->sl_tclass_flowlabel = cpu_to_be32(ah_attr->sl << 28);
if (ah_attr->ah_flags & IB_AH_GRH) {
av->g_slid |= 0x80;
diff --git a/drivers/infiniband/hw/mthca/mthca_cmd.c b/drivers/infiniband/hw/mthca/mthca_cmd.c
index 343eca5..1985b5d 100644
--- a/drivers/infiniband/hw/mthca/mthca_cmd.c
+++ b/drivers/infiniband/hw/mthca/mthca_cmd.c
@@ -965,6 +965,7 @@ int mthca_QUERY_DEV_LIM(struct mthca_dev
u32 *outbox;
u8 field;
u16 size;
+ u16 stat_rate;
int err;

#define QUERY_DEV_LIM_OUT_SIZE 0x100
@@ -995,6 +996,7 @@ int mthca_QUERY_DEV_LIM(struct mthca_dev
#define QUERY_DEV_LIM_MTU_WIDTH_OFFSET 0x36
#define QUERY_DEV_LIM_VL_PORT_OFFSET 0x37
#define QUERY_DEV_LIM_MAX_GID_OFFSET 0x3b
+#define QUERY_DEV_LIM_RATE_SUPPORT_OFFSET 0x3c
#define QUERY_DEV_LIM_MAX_PKEY_OFFSET 0x3f
#define QUERY_DEV_LIM_FLAGS_OFFSET 0x44
#define QUERY_DEV_LIM_RSVD_UAR_OFFSET 0x48
@@ -1086,6 +1088,8 @@ int mthca_QUERY_DEV_LIM(struct mthca_dev
dev_lim->num_ports = field & 0xf;
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_GID_OFFSET);
dev_lim->max_gids = 1 << (field & 0xf);
+ MTHCA_GET(stat_rate, outbox, QUERY_DEV_LIM_RATE_SUPPORT_OFFSET);
+ dev_lim->stat_rate_support = stat_rate;
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_PKEY_OFFSET);
dev_lim->max_pkeys = 1 << (field & 0xf);
MTHCA_GET(dev_lim->flags, outbox, QUERY_DEV_LIM_FLAGS_OFFSET);
diff --git a/drivers/infiniband/hw/mthca/mthca_cmd.h b/drivers/infiniband/hw/mthca/mthca_cmd.h
index e4ec35c..2f976f2 100644
--- a/drivers/infiniband/hw/mthca/mthca_cmd.h
+++ b/drivers/infiniband/hw/mthca/mthca_cmd.h
@@ -146,6 +146,7 @@ struct mthca_dev_lim {
int max_vl;
int num_ports;
int max_gids;
+ u16 stat_rate_support;
int max_pkeys;
u32 flags;
int reserved_uars;
diff --git a/drivers/infiniband/hw/mthca/mthca_dev.h b/drivers/infiniband/hw/mthca/mthca_dev.h
index ad52edb..49d0eae 100644
--- a/drivers/infiniband/hw/mthca/mthca_dev.h
+++ b/drivers/infiniband/hw/mthca/mthca_dev.h
@@ -172,6 +172,7 @@ struct mthca_limits {
int reserved_pds;
u32 page_size_cap;
u32 flags;
+ u16 stat_rate_support;
u8 port_width_cap;
};

@@ -353,10 +354,24 @@ struct mthca_dev {
struct ib_mad_agent *send_agent[MTHCA_MAX_PORTS][2];
struct ib_ah *sm_ah[MTHCA_MAX_PORTS];
spinlock_t sm_lock;
+ u8 rate[MTHCA_MAX_PORTS];
};

-#define mthca_dbg(mdev, format, arg...) \
- dev_dbg(&mdev->pdev->dev, format, ## arg)
+#ifdef CONFIG_INFINIBAND_MTHCA_DEBUG
+extern int mthca_debug_level;
+
+#define mthca_dbg(mdev, format, arg...) \
+ do { \
+ if (mthca_debug_level) \
+ dev_printk(KERN_DEBUG, &mdev->pdev->dev, format, ## arg); \
+ } while (0)
+
+#else /* CONFIG_INFINIBAND_MTHCA_DEBUG */
+
+#define mthca_dbg(mdev, format, arg...) do { (void) mdev; } while (0)
+
+#endif /* CONFIG_INFINIBAND_MTHCA_DEBUG */
+
#define mthca_err(mdev, format, arg...) \
dev_err(&mdev->pdev->dev, format, ## arg)
#define mthca_info(mdev, format, arg...) \
@@ -542,6 +557,8 @@ int mthca_read_ah(struct mthca_dev *dev,
struct ib_ud_header *header);
int mthca_ah_query(struct ib_ah *ibah, struct ib_ah_attr *attr);
int mthca_ah_grh_present(struct mthca_ah *ah);
+u8 mthca_get_rate(struct mthca_dev *dev, int static_rate, u8 port);
+enum ib_rate mthca_rate_to_ib(struct mthca_dev *dev, u8 mthca_rate, u8 port);

int mthca_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid);
int mthca_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid);
diff --git a/drivers/infiniband/hw/mthca/mthca_mad.c b/drivers/infiniband/hw/mthca/mthca_mad.c
index dfb482e..f235c7e 100644
--- a/drivers/infiniband/hw/mthca/mthca_mad.c
+++ b/drivers/infiniband/hw/mthca/mthca_mad.c
@@ -49,6 +49,30 @@ enum {
MTHCA_VENDOR_CLASS2 = 0xa
};

+int mthca_update_rate(struct mthca_dev *dev, u8 port_num)
+{
+ struct ib_port_attr *tprops = NULL;
+ int ret;
+
+ tprops = kmalloc(sizeof *tprops, GFP_KERNEL);
+ if (!tprops)
+ return -ENOMEM;
+
+ ret = ib_query_port(&dev->ib_dev, port_num, tprops);
+ if (ret) {
+ printk(KERN_WARNING "ib_query_port failed (%d) for %s port %d\n",
+ ret, dev->ib_dev.name, port_num);
+ goto out;
+ }
+
+ dev->rate[port_num - 1] = tprops->active_speed *
+ ib_width_enum_to_int(tprops->active_width);
+
+out:
+ kfree(tprops);
+ return ret;
+}
+
static void update_sm_ah(struct mthca_dev *dev,
u8 port_num, u16 lid, u8 sl)
{
@@ -90,6 +114,7 @@ static void smp_snoop(struct ib_device *
mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) &&
mad->mad_hdr.method == IB_MGMT_METHOD_SET) {
if (mad->mad_hdr.attr_id == IB_SMP_ATTR_PORT_INFO) {
+ mthca_update_rate(to_mdev(ibdev), port_num);
update_sm_ah(to_mdev(ibdev), port_num,
be16_to_cpup((__be16 *) (mad->data + 58)),
(*(u8 *) (mad->data + 76)) & 0xf);
@@ -246,6 +271,7 @@ int mthca_create_agents(struct mthca_dev
{
struct ib_mad_agent *agent;
int p, q;
+ int ret;

spin_lock_init(&dev->sm_lock);

@@ -255,11 +281,23 @@ int mthca_create_agents(struct mthca_dev
q ? IB_QPT_GSI : IB_QPT_SMI,
NULL, 0, send_handler,
NULL, NULL);
- if (IS_ERR(agent))
+ if (IS_ERR(agent)) {
+ ret = PTR_ERR(agent);
goto err;
+ }
dev->send_agent[p][q] = agent;
}

+
+ for (p = 1; p <= dev->limits.num_ports; ++p) {
+ ret = mthca_update_rate(dev, p);
+ if (ret) {
+ mthca_err(dev, "Failed to obtain port %d rate."
+ " aborting.\n", p);
+ goto err;
+ }
+ }
+
return 0;

err:
@@ -268,7 +306,7 @@ err:
if (dev->send_agent[p][q])
ib_unregister_mad_agent(dev->send_agent[p][q]);

- return PTR_ERR(agent);
+ return ret;
}

void __devexit mthca_free_agents(struct mthca_dev *dev)
diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c
index 266f347..7e9c97b 100644
--- a/drivers/infiniband/hw/mthca/mthca_main.c
+++ b/drivers/infiniband/hw/mthca/mthca_main.c
@@ -52,6 +52,14 @@ MODULE_DESCRIPTION("Mellanox InfiniBand
MODULE_LICENSE("Dual BSD/GPL");
MODULE_VERSION(DRV_VERSION);

+#ifdef CONFIG_INFINIBAND_MTHCA_DEBUG
+
+int mthca_debug_level = 0;
+module_param_named(debug_level, mthca_debug_level, int, 0644);
+MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0");
+
+#endif /* CONFIG_INFINIBAND_MTHCA_DEBUG */
+
#ifdef CONFIG_PCI_MSI

static int msi_x = 0;
@@ -69,6 +77,10 @@ MODULE_PARM_DESC(msi, "attempt to use MS

#endif /* CONFIG_PCI_MSI */

+static int tune_pci = 0;
+module_param(tune_pci, int, 0444);
+MODULE_PARM_DESC(tune_pci, "increase PCI burst from the default set by BIOS if nonzero");
+
static const char mthca_version[] __devinitdata =
DRV_NAME ": Mellanox InfiniBand HCA driver v"
DRV_VERSION " (" DRV_RELDATE ")\n";
@@ -90,6 +102,9 @@ static int __devinit mthca_tune_pci(stru
int cap;
u16 val;

+ if (!tune_pci)
+ return 0;
+
/* First try to max out Read Byte Count */
cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX);
if (cap) {
@@ -191,6 +206,18 @@ static int __devinit mthca_dev_lim(struc
mdev->limits.port_width_cap = dev_lim->max_port_width;
mdev->limits.page_size_cap = ~(u32) (dev_lim->min_page_sz - 1);
mdev->limits.flags = dev_lim->flags;
+ /*
+ * For old FW that doesn't return static rate support, use a
+ * value of 0x3 (only static rate values of 0 or 1 are handled),
+ * except on Sinai, where even old FW can handle static rate
+ * values of 2 and 3.
+ */
+ if (dev_lim->stat_rate_support)
+ mdev->limits.stat_rate_support = dev_lim->stat_rate_support;
+ else if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT)
+ mdev->limits.stat_rate_support = 0xf;
+ else
+ mdev->limits.stat_rate_support = 0x3;

/* IB_DEVICE_RESIZE_MAX_WR not supported by driver.
May be doable since hardware supports it for SRQ.
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.h b/drivers/infiniband/hw/mthca/mthca_provider.h
index 2e7f521..6676a78 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.h
+++ b/drivers/infiniband/hw/mthca/mthca_provider.h
@@ -257,6 +257,8 @@ struct mthca_qp {
atomic_t refcount;
u32 qpn;
int is_direct;
+ u8 port; /* for SQP and memfree use only */
+ u8 alt_port; /* for memfree use only */
u8 transport;
u8 state;
u8 atomic_rd_en;
@@ -278,7 +280,6 @@ struct mthca_qp {

struct mthca_sqp {
struct mthca_qp qp;
- int port;
int pkey_index;
u32 qkey;
u32 send_psn;
diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c
index 057c8e6..f37b0e3 100644
--- a/drivers/infiniband/hw/mthca/mthca_qp.c
+++ b/drivers/infiniband/hw/mthca/mthca_qp.c
@@ -248,6 +248,9 @@ void mthca_qp_event(struct mthca_dev *de
return;
}

+ if (event_type == IB_EVENT_PATH_MIG)
+ qp->port = qp->alt_port;
+
event.device = &dev->ib_dev;
event.event = event_type;
event.element.qp = &qp->ibqp;
@@ -392,10 +395,16 @@ static void to_ib_ah_attr(struct mthca_d
{
memset(ib_ah_attr, 0, sizeof *path);
ib_ah_attr->port_num = (be32_to_cpu(path->port_pkey) >> 24) & 0x3;
+
+ if (ib_ah_attr->port_num == 0 || ib_ah_attr->port_num > dev->limits.num_ports)
+ return;
+
ib_ah_attr->dlid = be16_to_cpu(path->rlid);
ib_ah_attr->sl = be32_to_cpu(path->sl_tclass_flowlabel) >> 28;
ib_ah_attr->src_path_bits = path->g_mylmc & 0x7f;
- ib_ah_attr->static_rate = path->static_rate & 0x7;
+ ib_ah_attr->static_rate = mthca_rate_to_ib(dev,
+ path->static_rate & 0x7,
+ ib_ah_attr->port_num);
ib_ah_attr->ah_flags = (path->g_mylmc & (1 << 7)) ? IB_AH_GRH : 0;
if (ib_ah_attr->ah_flags) {
ib_ah_attr->grh.sgid_index = path->mgid_index & (dev->limits.gid_table_len - 1);
@@ -455,8 +464,10 @@ int mthca_query_qp(struct ib_qp *ibqp, s
qp_attr->cap.max_recv_sge = qp->rq.max_gs;
qp_attr->cap.max_inline_data = qp->max_inline_data;

- to_ib_ah_attr(dev, &qp_attr->ah_attr, &context->pri_path);
- to_ib_ah_attr(dev, &qp_attr->alt_ah_attr, &context->alt_path);
+ if (qp->transport == RC || qp->transport == UC) {
+ to_ib_ah_attr(dev, &qp_attr->ah_attr, &context->pri_path);
+ to_ib_ah_attr(dev, &qp_attr->alt_ah_attr, &context->alt_path);
+ }

qp_attr->pkey_index = be32_to_cpu(context->pri_path.port_pkey) & 0x7f;
qp_attr->alt_pkey_index = be32_to_cpu(context->alt_path.port_pkey) & 0x7f;
@@ -484,11 +495,11 @@ out:
}

static int mthca_path_set(struct mthca_dev *dev, struct ib_ah_attr *ah,
- struct mthca_qp_path *path)
+ struct mthca_qp_path *path, u8 port)
{
path->g_mylmc = ah->src_path_bits & 0x7f;
path->rlid = cpu_to_be16(ah->dlid);
- path->static_rate = !!ah->static_rate;
+ path->static_rate = mthca_get_rate(dev, ah->static_rate, port);

if (ah->ah_flags & IB_AH_GRH) {
if (ah->grh.sgid_index >= dev->limits.gid_table_len) {
@@ -634,7 +645,7 @@ int mthca_modify_qp(struct ib_qp *ibqp,

if (qp->transport == MLX)
qp_context->pri_path.port_pkey |=
- cpu_to_be32(to_msqp(qp)->port << 24);
+ cpu_to_be32(qp->port << 24);
else {
if (attr_mask & IB_QP_PORT) {
qp_context->pri_path.port_pkey |=
@@ -657,7 +668,8 @@ int mthca_modify_qp(struct ib_qp *ibqp,
}

if (attr_mask & IB_QP_AV) {
- if (mthca_path_set(dev, &attr->ah_attr, &qp_context->pri_path))
+ if (mthca_path_set(dev, &attr->ah_attr, &qp_context->pri_path,
+ attr_mask & IB_QP_PORT ? attr->port_num : qp->port))
return -EINVAL;

qp_param->opt_param_mask |= cpu_to_be32(MTHCA_QP_OPTPAR_PRIMARY_ADDR_PATH);
@@ -681,7 +693,8 @@ int mthca_modify_qp(struct ib_qp *ibqp,
return -EINVAL;
}

- if (mthca_path_set(dev, &attr->alt_ah_attr, &qp_context->alt_path))
+ if (mthca_path_set(dev, &attr->alt_ah_attr, &qp_context->alt_path,
+ attr->alt_ah_attr.port_num))
return -EINVAL;

qp_context->alt_path.port_pkey |= cpu_to_be32(attr->alt_pkey_index |
@@ -791,6 +804,10 @@ int mthca_modify_qp(struct ib_qp *ibqp,
qp->atomic_rd_en = attr->qp_access_flags;
if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC)
qp->resp_depth = attr->max_dest_rd_atomic;
+ if (attr_mask & IB_QP_PORT)
+ qp->port = attr->port_num;
+ if (attr_mask & IB_QP_ALT_PATH)
+ qp->alt_port = attr->alt_port_num;

if (is_sqp(dev, qp))
store_attrs(to_msqp(qp), attr, attr_mask);
@@ -802,13 +819,13 @@ int mthca_modify_qp(struct ib_qp *ibqp,
if (is_qp0(dev, qp)) {
if (cur_state != IB_QPS_RTR &&
new_state == IB_QPS_RTR)
- init_port(dev, to_msqp(qp)->port);
+ init_port(dev, qp->port);

if (cur_state != IB_QPS_RESET &&
cur_state != IB_QPS_ERR &&
(new_state == IB_QPS_RESET ||
new_state == IB_QPS_ERR))
- mthca_CLOSE_IB(dev, to_msqp(qp)->port, &status);
+ mthca_CLOSE_IB(dev, qp->port, &status);
}

/*
@@ -1212,6 +1229,9 @@ int mthca_alloc_qp(struct mthca_dev *dev
if (qp->qpn == -1)
return -ENOMEM;

+ /* initialize port to zero for error-catching. */
+ qp->port = 0;
+
err = mthca_alloc_qp_common(dev, pd, send_cq, recv_cq,
send_policy, qp);
if (err) {
@@ -1261,7 +1281,7 @@ int mthca_alloc_sqp(struct mthca_dev *de
if (err)
goto err_out;

- sqp->port = port;
+ sqp->qp.port = port;
sqp->qp.qpn = mqpn;
sqp->qp.transport = MLX;

@@ -1404,10 +1424,10 @@ static int build_mlx_header(struct mthca
sqp->ud_header.lrh.source_lid = IB_LID_PERMISSIVE;
sqp->ud_header.bth.solicited_event = !!(wr->send_flags & IB_SEND_SOLICITED);
if (!sqp->qp.ibqp.qp_num)
- ib_get_cached_pkey(&dev->ib_dev, sqp->port,
+ ib_get_cached_pkey(&dev->ib_dev, sqp->qp.port,
sqp->pkey_index, &pkey);
else
- ib_get_cached_pkey(&dev->ib_dev, sqp->port,
+ ib_get_cached_pkey(&dev->ib_dev, sqp->qp.port,
wr->wr.ud.pkey_index, &pkey);
sqp->ud_header.bth.pkey = cpu_to_be16(pkey);
sqp->ud_header.bth.destination_qpn = cpu_to_be32(wr->wr.ud.remote_qpn);
diff --git a/drivers/infiniband/ulp/ipoib/Kconfig b/drivers/infiniband/ulp/ipoib/Kconfig
index 8d2e04c..13d6d01 100644
--- a/drivers/infiniband/ulp/ipoib/Kconfig
+++ b/drivers/infiniband/ulp/ipoib/Kconfig
@@ -10,8 +10,9 @@ config INFINIBAND_IPOIB
group: <http://www.ietf.org/html.charters/ipoib-charter.html>.

config INFINIBAND_IPOIB_DEBUG
- bool "IP-over-InfiniBand debugging"
+ bool "IP-over-InfiniBand debugging" if EMBEDDED
depends on INFINIBAND_IPOIB
+ default y
---help---
This option causes debugging code to be compiled into the
IPoIB driver. The output can be turned on via the
diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h
index b640107..12a1e05 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib.h
+++ b/drivers/infiniband/ulp/ipoib/ipoib.h
@@ -65,6 +65,8 @@ enum {

IPOIB_RX_RING_SIZE = 128,
IPOIB_TX_RING_SIZE = 64,
+ IPOIB_MAX_QUEUE_SIZE = 8192,
+ IPOIB_MIN_QUEUE_SIZE = 2,

IPOIB_NUM_WC = 4,

@@ -230,6 +232,9 @@ static inline struct ipoib_neigh **to_ip
INFINIBAND_ALEN, sizeof(void *));
}

+struct ipoib_neigh *ipoib_neigh_alloc(struct neighbour *neigh);
+void ipoib_neigh_free(struct ipoib_neigh *neigh);
+
extern struct workqueue_struct *ipoib_workqueue;

/* functions */
@@ -329,6 +334,8 @@ static inline void ipoib_unregister_debu
#define ipoib_warn(priv, format, arg...) \
ipoib_printk(KERN_WARNING, priv, format , ## arg)

+extern int ipoib_sendq_size;
+extern int ipoib_recvq_size;

#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
extern int ipoib_debug_level;
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_fs.c b/drivers/infiniband/ulp/ipoib/ipoib_fs.c
index 685258e..5dde380 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_fs.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_fs.c
@@ -213,7 +213,7 @@ static int ipoib_path_seq_show(struct se
gid_buf, path.pathrec.dlid ? "yes" : "no");

if (path.pathrec.dlid) {
- rate = ib_sa_rate_enum_to_int(path.pathrec.rate) * 25;
+ rate = ib_rate_to_mult(path.pathrec.rate) * 25;

seq_printf(file,
" DLID: 0x%04x\n"
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
index ed65202..a54da42 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
@@ -161,7 +161,7 @@ static int ipoib_ib_post_receives(struct
struct ipoib_dev_priv *priv = netdev_priv(dev);
int i;

- for (i = 0; i < IPOIB_RX_RING_SIZE; ++i) {
+ for (i = 0; i < ipoib_recvq_size; ++i) {
if (ipoib_alloc_rx_skb(dev, i)) {
ipoib_warn(priv, "failed to allocate receive buffer %d\n", i);
return -ENOMEM;
@@ -187,7 +187,7 @@ static void ipoib_ib_handle_wc(struct ne
if (wr_id & IPOIB_OP_RECV) {
wr_id &= ~IPOIB_OP_RECV;

- if (wr_id < IPOIB_RX_RING_SIZE) {
+ if (wr_id < ipoib_recvq_size) {
struct sk_buff *skb = priv->rx_ring[wr_id].skb;
dma_addr_t addr = priv->rx_ring[wr_id].mapping;

@@ -252,9 +252,9 @@ static void ipoib_ib_handle_wc(struct ne
struct ipoib_tx_buf *tx_req;
unsigned long flags;

- if (wr_id >= IPOIB_TX_RING_SIZE) {
+ if (wr_id >= ipoib_sendq_size) {
ipoib_warn(priv, "completion event with wrid %d (> %d)\n",
- wr_id, IPOIB_TX_RING_SIZE);
+ wr_id, ipoib_sendq_size);
return;
}

@@ -275,7 +275,7 @@ static void ipoib_ib_handle_wc(struct ne
spin_lock_irqsave(&priv->tx_lock, flags);
++priv->tx_tail;
if (netif_queue_stopped(dev) &&
- priv->tx_head - priv->tx_tail <= IPOIB_TX_RING_SIZE / 2)
+ priv->tx_head - priv->tx_tail <= ipoib_sendq_size >> 1)
netif_wake_queue(dev);
spin_unlock_irqrestore(&priv->tx_lock, flags);

@@ -344,13 +344,13 @@ void ipoib_send(struct net_device *dev,
* means we have to make sure everything is properly recorded and
* our state is consistent before we call post_send().
*/
- tx_req = &priv->tx_ring[priv->tx_head & (IPOIB_TX_RING_SIZE - 1)];
+ 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);
pci_unmap_addr_set(tx_req, mapping, addr);

- if (unlikely(post_send(priv, priv->tx_head & (IPOIB_TX_RING_SIZE - 1),
+ 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;
@@ -363,7 +363,7 @@ void ipoib_send(struct net_device *dev,
address->last_send = priv->tx_head;
++priv->tx_head;

- if (priv->tx_head - priv->tx_tail == IPOIB_TX_RING_SIZE) {
+ if (priv->tx_head - priv->tx_tail == ipoib_sendq_size) {
ipoib_dbg(priv, "TX ring full, stopping kernel net queue\n");
netif_stop_queue(dev);
}
@@ -488,7 +488,7 @@ static int recvs_pending(struct net_devi
int pending = 0;
int i;

- for (i = 0; i < IPOIB_RX_RING_SIZE; ++i)
+ for (i = 0; i < ipoib_recvq_size; ++i)
if (priv->rx_ring[i].skb)
++pending;

@@ -527,7 +527,7 @@ int ipoib_ib_dev_stop(struct net_device
*/
while ((int) priv->tx_tail - (int) priv->tx_head < 0) {
tx_req = &priv->tx_ring[priv->tx_tail &
- (IPOIB_TX_RING_SIZE - 1)];
+ (ipoib_sendq_size - 1)];
dma_unmap_single(priv->ca->dma_device,
pci_unmap_addr(tx_req, mapping),
tx_req->skb->len,
@@ -536,7 +536,7 @@ int ipoib_ib_dev_stop(struct net_device
++priv->tx_tail;
}

- for (i = 0; i < IPOIB_RX_RING_SIZE; ++i)
+ 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],
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index 9b0bd7c..cb078a7 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -41,6 +41,7 @@
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
+#include <linux/kernel.h>

#include <linux/if_arp.h> /* For ARPHRD_xxx */

@@ -53,6 +54,14 @@ MODULE_AUTHOR("Roland Dreier");
MODULE_DESCRIPTION("IP-over-InfiniBand net driver");
MODULE_LICENSE("Dual BSD/GPL");

+int ipoib_sendq_size __read_mostly = IPOIB_TX_RING_SIZE;
+int ipoib_recvq_size __read_mostly = IPOIB_RX_RING_SIZE;
+
+module_param_named(send_queue_size, ipoib_sendq_size, int, 0444);
+MODULE_PARM_DESC(send_queue_size, "Number of descriptors in send queue");
+module_param_named(recv_queue_size, ipoib_recvq_size, int, 0444);
+MODULE_PARM_DESC(recv_queue_size, "Number of descriptors in receive queue");
+
#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG
int ipoib_debug_level;

@@ -252,8 +261,8 @@ static void path_free(struct net_device
*/
if (neigh->ah)
ipoib_put_ah(neigh->ah);
- *to_ipoib_neigh(neigh->neighbour) = NULL;
- kfree(neigh);
+
+ ipoib_neigh_free(neigh);
}

spin_unlock_irqrestore(&priv->lock, flags);
@@ -327,9 +336,8 @@ void ipoib_flush_paths(struct net_device
struct ipoib_dev_priv *priv = netdev_priv(dev);
struct ipoib_path *path, *tp;
LIST_HEAD(remove_list);
- unsigned long flags;

- spin_lock_irqsave(&priv->lock, flags);
+ spin_lock_irq(&priv->lock);

list_splice(&priv->path_list, &remove_list);
INIT_LIST_HEAD(&priv->path_list);
@@ -337,14 +345,15 @@ void ipoib_flush_paths(struct net_device
list_for_each_entry(path, &remove_list, list)
rb_erase(&path->rb_node, &priv->path_tree);

- spin_unlock_irqrestore(&priv->lock, flags);
-
list_for_each_entry_safe(path, tp, &remove_list, list) {
if (path->query)
ib_sa_cancel_query(path->query_id, path->query);
+ spin_unlock_irq(&priv->lock);
wait_for_completion(&path->done);
path_free(dev, path);
+ spin_lock_irq(&priv->lock);
}
+ spin_unlock_irq(&priv->lock);
}

static void path_rec_completion(int status,
@@ -373,16 +382,9 @@ static void path_rec_completion(int stat
struct ib_ah_attr av = {
.dlid = be16_to_cpu(pathrec->dlid),
.sl = pathrec->sl,
- .port_num = priv->port
+ .port_num = priv->port,
+ .static_rate = pathrec->rate
};
- int path_rate = ib_sa_rate_enum_to_int(pathrec->rate);
-
- if (path_rate > 0 && priv->local_rate > path_rate)
- av.static_rate = (priv->local_rate - 1) / path_rate;
-
- ipoib_dbg(priv, "static_rate %d for local port %dX, path %dX\n",
- av.static_rate, priv->local_rate,
- ib_sa_rate_enum_to_int(pathrec->rate));

ah = ipoib_create_ah(dev, priv->pd, &av);
}
@@ -481,7 +483,7 @@ static void neigh_add_path(struct sk_buf
struct ipoib_path *path;
struct ipoib_neigh *neigh;

- neigh = kmalloc(sizeof *neigh, GFP_ATOMIC);
+ neigh = ipoib_neigh_alloc(skb->dst->neighbour);
if (!neigh) {
++priv->stats.tx_dropped;
dev_kfree_skb_any(skb);
@@ -489,8 +491,6 @@ static void neigh_add_path(struct sk_buf
}

skb_queue_head_init(&neigh->queue);
- neigh->neighbour = skb->dst->neighbour;
- *to_ipoib_neigh(skb->dst->neighbour) = neigh;

/*
* We can only be called from ipoib_start_xmit, so we're
@@ -503,7 +503,7 @@ static void neigh_add_path(struct sk_buf
path = path_rec_create(dev,
(union ib_gid *) (skb->dst->neighbour->ha + 4));
if (!path)
- goto err;
+ goto err_path;

__path_add(dev, path);
}
@@ -521,17 +521,17 @@ static void neigh_add_path(struct sk_buf
__skb_queue_tail(&neigh->queue, skb);

if (!path->query && path_rec_start(dev, path))
- goto err;
+ goto err_list;
}

spin_unlock(&priv->lock);
return;

-err:
- *to_ipoib_neigh(skb->dst->neighbour) = NULL;
+err_list:
list_del(&neigh->list);
- kfree(neigh);

+err_path:
+ ipoib_neigh_free(neigh);
++priv->stats.tx_dropped;
dev_kfree_skb_any(skb);

@@ -763,8 +763,7 @@ static void ipoib_neigh_destructor(struc
if (neigh->ah)
ah = neigh->ah;
list_del(&neigh->list);
- *to_ipoib_neigh(n) = NULL;
- kfree(neigh);
+ ipoib_neigh_free(neigh);
}

spin_unlock_irqrestore(&priv->lock, flags);
@@ -773,6 +772,26 @@ static void ipoib_neigh_destructor(struc
ipoib_put_ah(ah);
}

+struct ipoib_neigh *ipoib_neigh_alloc(struct neighbour *neighbour)
+{
+ struct ipoib_neigh *neigh;
+
+ neigh = kmalloc(sizeof *neigh, GFP_ATOMIC);
+ if (!neigh)
+ return NULL;
+
+ neigh->neighbour = neighbour;
+ *to_ipoib_neigh(neighbour) = neigh;
+
+ return neigh;
+}
+
+void ipoib_neigh_free(struct ipoib_neigh *neigh)
+{
+ *to_ipoib_neigh(neigh->neighbour) = NULL;
+ kfree(neigh);
+}
+
static int ipoib_neigh_setup_dev(struct net_device *dev, struct neigh_parms *parms)
{
parms->neigh_destructor = ipoib_neigh_destructor;
@@ -785,20 +804,19 @@ int ipoib_dev_init(struct net_device *de
struct ipoib_dev_priv *priv = netdev_priv(dev);

/* Allocate RX/TX "rings" to hold queued skbs */
-
- priv->rx_ring = kzalloc(IPOIB_RX_RING_SIZE * sizeof (struct ipoib_rx_buf),
+ priv->rx_ring = kzalloc(ipoib_recvq_size * sizeof *priv->rx_ring,
GFP_KERNEL);
if (!priv->rx_ring) {
printk(KERN_WARNING "%s: failed to allocate RX ring (%d entries)\n",
- ca->name, IPOIB_RX_RING_SIZE);
+ ca->name, ipoib_recvq_size);
goto out;
}

- priv->tx_ring = kzalloc(IPOIB_TX_RING_SIZE * sizeof (struct ipoib_tx_buf),
+ priv->tx_ring = kzalloc(ipoib_sendq_size * sizeof *priv->tx_ring,
GFP_KERNEL);
if (!priv->tx_ring) {
printk(KERN_WARNING "%s: failed to allocate TX ring (%d entries)\n",
- ca->name, IPOIB_TX_RING_SIZE);
+ ca->name, ipoib_sendq_size);
goto out_rx_ring_cleanup;
}

@@ -866,7 +884,7 @@ static void ipoib_setup(struct net_devic
dev->hard_header_len = IPOIB_ENCAP_LEN + INFINIBAND_ALEN;
dev->addr_len = INFINIBAND_ALEN;
dev->type = ARPHRD_INFINIBAND;
- dev->tx_queue_len = IPOIB_TX_RING_SIZE * 2;
+ dev->tx_queue_len = ipoib_sendq_size * 2;
dev->features = NETIF_F_VLAN_CHALLENGED | NETIF_F_LLTX;

/* MTU will be reset when mcast join happens */
@@ -1118,6 +1136,14 @@ static int __init ipoib_init_module(void
{
int ret;

+ ipoib_recvq_size = roundup_pow_of_two(ipoib_recvq_size);
+ ipoib_recvq_size = min(ipoib_recvq_size, IPOIB_MAX_QUEUE_SIZE);
+ ipoib_recvq_size = max(ipoib_recvq_size, IPOIB_MIN_QUEUE_SIZE);
+
+ ipoib_sendq_size = roundup_pow_of_two(ipoib_sendq_size);
+ ipoib_sendq_size = min(ipoib_sendq_size, IPOIB_MAX_QUEUE_SIZE);
+ ipoib_sendq_size = max(ipoib_sendq_size, IPOIB_MIN_QUEUE_SIZE);
+
ret = ipoib_register_debugfs();
if (ret)
return ret;
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
index 93c462e..1dae4b2 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
@@ -114,8 +114,7 @@ static void ipoib_mcast_free(struct ipoi
*/
if (neigh->ah)
ipoib_put_ah(neigh->ah);
- *to_ipoib_neigh(neigh->neighbour) = NULL;
- kfree(neigh);
+ ipoib_neigh_free(neigh);
}

spin_unlock_irqrestore(&priv->lock, flags);
@@ -251,6 +250,7 @@ static int ipoib_mcast_join_finish(struc
.port_num = priv->port,
.sl = mcast->mcmember.sl,
.ah_flags = IB_AH_GRH,
+ .static_rate = mcast->mcmember.rate,
.grh = {
.flow_label = be32_to_cpu(mcast->mcmember.flow_label),
.hop_limit = mcast->mcmember.hop_limit,
@@ -258,17 +258,8 @@ static int ipoib_mcast_join_finish(struc
.traffic_class = mcast->mcmember.traffic_class
}
};
- int path_rate = ib_sa_rate_enum_to_int(mcast->mcmember.rate);
-
av.grh.dgid = mcast->mcmember.mgid;

- if (path_rate > 0 && priv->local_rate > path_rate)
- av.static_rate = (priv->local_rate - 1) / path_rate;
-
- ipoib_dbg_mcast(priv, "static_rate %d for local port %dX, mcmember %dX\n",
- av.static_rate, priv->local_rate,
- ib_sa_rate_enum_to_int(mcast->mcmember.rate));
-
ah = ipoib_create_ah(dev, priv->pd, &av);
if (!ah) {
ipoib_warn(priv, "ib_address_create failed\n");
@@ -618,6 +609,22 @@ int ipoib_mcast_start_thread(struct net_
return 0;
}

+static void wait_for_mcast_join(struct ipoib_dev_priv *priv,
+ struct ipoib_mcast *mcast)
+{
+ spin_lock_irq(&priv->lock);
+ if (mcast && mcast->query) {
+ ib_sa_cancel_query(mcast->query_id, mcast->query);
+ mcast->query = NULL;
+ spin_unlock_irq(&priv->lock);
+ ipoib_dbg_mcast(priv, "waiting for MGID " IPOIB_GID_FMT "\n",
+ IPOIB_GID_ARG(mcast->mcmember.mgid));
+ wait_for_completion(&mcast->done);
+ }
+ else
+ spin_unlock_irq(&priv->lock);
+}
+
int ipoib_mcast_stop_thread(struct net_device *dev, int flush)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
@@ -637,28 +644,10 @@ int ipoib_mcast_stop_thread(struct net_d
if (flush)
flush_workqueue(ipoib_workqueue);

- spin_lock_irq(&priv->lock);
- if (priv->broadcast && priv->broadcast->query) {
- ib_sa_cancel_query(priv->broadcast->query_id, priv->broadcast->query);
- priv->broadcast->query = NULL;
- spin_unlock_irq(&priv->lock);
- ipoib_dbg_mcast(priv, "waiting for bcast\n");
- wait_for_completion(&priv->broadcast->done);
- } else
- spin_unlock_irq(&priv->lock);
+ wait_for_mcast_join(priv, priv->broadcast);

- list_for_each_entry(mcast, &priv->multicast_list, list) {
- spin_lock_irq(&priv->lock);
- if (mcast->query) {
- ib_sa_cancel_query(mcast->query_id, mcast->query);
- mcast->query = NULL;
- spin_unlock_irq(&priv->lock);
- ipoib_dbg_mcast(priv, "waiting for MGID " IPOIB_GID_FMT "\n",
- IPOIB_GID_ARG(mcast->mcmember.mgid));
- wait_for_completion(&mcast->done);
- } else
- spin_unlock_irq(&priv->lock);
- }
+ list_for_each_entry(mcast, &priv->multicast_list, list)
+ wait_for_mcast_join(priv, mcast);

return 0;
}
@@ -772,13 +761,11 @@ out:
if (skb->dst &&
skb->dst->neighbour &&
!*to_ipoib_neigh(skb->dst->neighbour)) {
- struct ipoib_neigh *neigh = kmalloc(sizeof *neigh, GFP_ATOMIC);
+ struct ipoib_neigh *neigh = ipoib_neigh_alloc(skb->dst->neighbour);

if (neigh) {
kref_get(&mcast->ah->ref);
neigh->ah = mcast->ah;
- neigh->neighbour = skb->dst->neighbour;
- *to_ipoib_neigh(skb->dst->neighbour) = neigh;
list_add_tail(&neigh->list, &mcast->neigh_list);
}
}
@@ -913,6 +900,7 @@ void ipoib_mcast_restart_task(void *dev_

/* We have to cancel outside of the spinlock */
list_for_each_entry_safe(mcast, tmcast, &remove_list, list) {
+ wait_for_mcast_join(priv, mcast);
ipoib_mcast_leave(mcast->dev, mcast);
ipoib_mcast_free(mcast);
}
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_verbs.c b/drivers/infiniband/ulp/ipoib/ipoib_verbs.c
index 5f03880..1d49d16 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_verbs.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_verbs.c
@@ -159,8 +159,8 @@ int ipoib_transport_dev_init(struct net_
struct ipoib_dev_priv *priv = netdev_priv(dev);
struct ib_qp_init_attr init_attr = {
.cap = {
- .max_send_wr = IPOIB_TX_RING_SIZE,
- .max_recv_wr = IPOIB_RX_RING_SIZE,
+ .max_send_wr = ipoib_sendq_size,
+ .max_recv_wr = ipoib_recvq_size,
.max_send_sge = 1,
.max_recv_sge = 1
},
@@ -175,7 +175,7 @@ int ipoib_transport_dev_init(struct net_
}

priv->cq = ib_create_cq(priv->ca, ipoib_ib_completion, NULL, dev,
- IPOIB_TX_RING_SIZE + IPOIB_RX_RING_SIZE + 1);
+ ipoib_sendq_size + ipoib_recvq_size + 1);
if (IS_ERR(priv->cq)) {
printk(KERN_WARNING "%s: failed to create CQ\n", ca->name);
goto out_free_pd;
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index fd8a95a..5f2b3f6 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -1434,6 +1434,7 @@ static int srp_parse_options(const char
p = match_strdup(args);
if (strlen(p) != 32) {
printk(KERN_WARNING PFX "bad dest GID parameter '%s'\n", p);
+ kfree(p);
goto out;
}

diff --git a/include/rdma/ib_cm.h b/include/rdma/ib_cm.h
index 0a9fcd5..c552ee7 100644
--- a/include/rdma/ib_cm.h
+++ b/include/rdma/ib_cm.h
@@ -292,6 +292,10 @@ struct ib_cm_id {
u32 remote_cm_qpn; /* 1 unless redirected */
};

+struct ib_cm_id *__ib_create_cm_id(struct ib_device *device,
+ ib_cm_handler cm_handler,
+ void *context, struct module *owner);
+
/**
* ib_create_cm_id - Allocate a communication identifier.
* @device: Device associated with the cm_id. All related communication will
@@ -303,9 +307,12 @@ struct ib_cm_id {
* Communication identifiers are used to track connection states, service
* ID resolution requests, and listen requests.
*/
-struct ib_cm_id *ib_create_cm_id(struct ib_device *device,
- ib_cm_handler cm_handler,
- void *context);
+static inline struct ib_cm_id *ib_create_cm_id(struct ib_device *device,
+ ib_cm_handler cm_handler,
+ void *context)
+{
+ return __ib_create_cm_id(device, cm_handler, context, THIS_MODULE);
+}

/**
* ib_destroy_cm_id - Destroy a connection identifier.
diff --git a/include/rdma/ib_sa.h b/include/rdma/ib_sa.h
index f404fe2..6769d1b 100644
--- a/include/rdma/ib_sa.h
+++ b/include/rdma/ib_sa.h
@@ -91,34 +91,6 @@ enum ib_sa_selector {
IB_SA_BEST = 3
};

-enum ib_sa_rate {
- IB_SA_RATE_2_5_GBPS = 2,
- IB_SA_RATE_5_GBPS = 5,
- IB_SA_RATE_10_GBPS = 3,
- IB_SA_RATE_20_GBPS = 6,
- IB_SA_RATE_30_GBPS = 4,
- IB_SA_RATE_40_GBPS = 7,
- IB_SA_RATE_60_GBPS = 8,
- IB_SA_RATE_80_GBPS = 9,
- IB_SA_RATE_120_GBPS = 10
-};
-
-static inline int ib_sa_rate_enum_to_int(enum ib_sa_rate rate)
-{
- switch (rate) {
- case IB_SA_RATE_2_5_GBPS: return 1;
- case IB_SA_RATE_5_GBPS: return 2;
- case IB_SA_RATE_10_GBPS: return 4;
- case IB_SA_RATE_20_GBPS: return 8;
- case IB_SA_RATE_30_GBPS: return 12;
- case IB_SA_RATE_40_GBPS: return 16;
- case IB_SA_RATE_60_GBPS: return 24;
- case IB_SA_RATE_80_GBPS: return 32;
- case IB_SA_RATE_120_GBPS: return 48;
- default: return -1;
- }
-}
-
/*
* Structures for SA records are named "struct ib_sa_xxx_rec." No
* attempt is made to pack structures to match the physical layout of
@@ -282,37 +254,80 @@ struct ib_sa_query;

void ib_sa_cancel_query(int id, struct ib_sa_query *query);

-int ib_sa_path_rec_get(struct ib_device *device, u8 port_num,
- struct ib_sa_path_rec *rec,
- ib_sa_comp_mask comp_mask,
- int timeout_ms, gfp_t gfp_mask,
- void (*callback)(int status,
- struct ib_sa_path_rec *resp,
- void *context),
- void *context,
- struct ib_sa_query **query);
-
-int ib_sa_mcmember_rec_query(struct ib_device *device, u8 port_num,
- u8 method,
- struct ib_sa_mcmember_rec *rec,
- ib_sa_comp_mask comp_mask,
- int timeout_ms, gfp_t gfp_mask,
- void (*callback)(int status,
- struct ib_sa_mcmember_rec *resp,
- void *context),
- void *context,
- struct ib_sa_query **query);
-
-int ib_sa_service_rec_query(struct ib_device *device, u8 port_num,
- u8 method,
- struct ib_sa_service_rec *rec,
+int __ib_sa_path_rec_get(struct ib_device *device, u8 port_num,
+ struct ib_sa_path_rec *rec,
ib_sa_comp_mask comp_mask,
int timeout_ms, gfp_t gfp_mask,
void (*callback)(int status,
- struct ib_sa_service_rec *resp,
+ struct ib_sa_path_rec *resp,
void *context),
void *context,
- struct ib_sa_query **sa_query);
+ struct module *owner,
+ struct ib_sa_query **query);
+
+int __ib_sa_mcmember_rec_query(struct ib_device *device, u8 port_num,
+ u8 method,
+ struct ib_sa_mcmember_rec *rec,
+ ib_sa_comp_mask comp_mask,
+ int timeout_ms, gfp_t gfp_mask,
+ void (*callback)(int status,
+ struct ib_sa_mcmember_rec *resp,
+ void *context),
+ void *context,
+ struct module *owner,
+ struct ib_sa_query **query);
+
+int __ib_sa_service_rec_query(struct ib_device *device, u8 port_num,
+ u8 method,
+ struct ib_sa_service_rec *rec,
+ ib_sa_comp_mask comp_mask,
+ int timeout_ms, gfp_t gfp_mask,
+ void (*callback)(int status,
+ struct ib_sa_service_rec *resp,
+ void *context),
+ void *context,
+ struct module *owner,
+ struct ib_sa_query **sa_query);
+
+/**
+ * ib_sa_path_rec_get - Start a Path get query
+ * @device:device to send query on
+ * @port_num: port number to send query on
+ * @rec:Path Record to send in query
+ * @comp_mask:component mask to send in query
+ * @timeout_ms:time to wait for response
+ * @gfp_mask:GFP mask to use for internal allocations
+ * @callback:function called when query completes, times out or is
+ * canceled
+ * @context:opaque user context passed to callback
+ * @sa_query:query context, used to cancel query
+ *
+ * Send a Path Record Get query to the SA to look up a path. The
+ * callback function will be called when the query completes (or
+ * fails); status is 0 for a successful response, -EINTR if the query
+ * is canceled, -ETIMEDOUT is the query timed out, or -EIO if an error
+ * occurred sending the query. The resp parameter of the callback is
+ * only valid if status is 0.
+ *
+ * If the return value of ib_sa_path_rec_get() is negative, it is an
+ * error code. Otherwise it is a query ID that can be used to cancel
+ * the query.
+ */
+static inline int
+ib_sa_path_rec_get(struct ib_device *device, u8 port_num,
+ struct ib_sa_path_rec *rec,
+ ib_sa_comp_mask comp_mask,
+ int timeout_ms, gfp_t gfp_mask,
+ void (*callback)(int status,
+ struct ib_sa_path_rec *resp,
+ void *context),
+ void *context,
+ struct ib_sa_query **sa_query)
+{
+ return __ib_sa_path_rec_get(device, port_num, rec, comp_mask,
+ timeout_ms, gfp_mask, callback,
+ context, THIS_MODULE, sa_query);
+}

/**
* ib_sa_mcmember_rec_set - Start an MCMember set query
@@ -349,11 +364,11 @@ ib_sa_mcmember_rec_set(struct ib_device
void *context,
struct ib_sa_query **query)
{
- return ib_sa_mcmember_rec_query(device, port_num,
- IB_MGMT_METHOD_SET,
- rec, comp_mask,
- timeout_ms, gfp_mask, callback,
- context, query);
+ return __ib_sa_mcmember_rec_query(device, port_num,
+ IB_MGMT_METHOD_SET,
+ rec, comp_mask,
+ timeout_ms, gfp_mask, callback,
+ context, THIS_MODULE, query);
}

/**
@@ -391,12 +406,54 @@ ib_sa_mcmember_rec_delete(struct ib_devi
void *context,
struct ib_sa_query **query)
{
- return ib_sa_mcmember_rec_query(device, port_num,
- IB_SA_METHOD_DELETE,
- rec, comp_mask,
- timeout_ms, gfp_mask, callback,
- context, query);
+ return __ib_sa_mcmember_rec_query(device, port_num,
+ IB_SA_METHOD_DELETE,
+ rec, comp_mask,
+ timeout_ms, gfp_mask, callback,
+ context, THIS_MODULE, query);
}

+/**
+ * ib_sa_service_rec_query - Start Service Record operation
+ * @device:device to send request on
+ * @port_num: port number to send request on
+ * @method:SA method - should be get, set, or delete
+ * @rec:Service Record to send in request
+ * @comp_mask:component mask to send in request
+ * @timeout_ms:time to wait for response
+ * @gfp_mask:GFP mask to use for internal allocations
+ * @callback:function called when request completes, times out or is
+ * canceled
+ * @context:opaque user context passed to callback
+ * @sa_query:request context, used to cancel request
+ *
+ * Send a Service Record set/get/delete to the SA to register,
+ * unregister or query a service record.
+ * The callback function will be called when the request completes (or
+ * fails); status is 0 for a successful response, -EINTR if the query
+ * is canceled, -ETIMEDOUT is the query timed out, or -EIO if an error
+ * occurred sending the query. The resp parameter of the callback is
+ * only valid if status is 0.
+ *
+ * If the return value of ib_sa_service_rec_query() is negative, it is an
+ * error code. Otherwise it is a request ID that can be used to cancel
+ * the query.
+ */
+static inline int
+ib_sa_service_rec_query(struct ib_device *device, u8 port_num, u8 method,
+ struct ib_sa_service_rec *rec,
+ ib_sa_comp_mask comp_mask,
+ int timeout_ms, gfp_t gfp_mask,
+ void (*callback)(int status,
+ struct ib_sa_service_rec *resp,
+ void *context),
+ void *context,
+ struct ib_sa_query **sa_query)
+{
+ return __ib_sa_service_rec_query(device, port_num, method, rec,
+ comp_mask, timeout_ms, gfp_mask,
+ callback, context, THIS_MODULE,
+ sa_query);
+}

#endif /* IB_SA_H */
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index c1ad627..6bbf1b3 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -314,6 +314,34 @@ enum ib_ah_flags {
IB_AH_GRH = 1
};

+enum ib_rate {
+ IB_RATE_PORT_CURRENT = 0,
+ IB_RATE_2_5_GBPS = 2,
+ IB_RATE_5_GBPS = 5,
+ IB_RATE_10_GBPS = 3,
+ IB_RATE_20_GBPS = 6,
+ IB_RATE_30_GBPS = 4,
+ IB_RATE_40_GBPS = 7,
+ IB_RATE_60_GBPS = 8,
+ IB_RATE_80_GBPS = 9,
+ IB_RATE_120_GBPS = 10
+};
+
+/**
+ * ib_rate_to_mult - Convert the IB rate enum to a multiple of the
+ * base rate of 2.5 Gbit/sec. For example, IB_RATE_5_GBPS will be
+ * converted to 2, since 5 Gbit/sec is 2 * 2.5 Gbit/sec.
+ * @rate: rate to convert.
+ */
+int ib_rate_to_mult(enum ib_rate rate) __attribute_const__;
+
+/**
+ * mult_to_ib_rate - Convert a multiple of 2.5 Gbit/sec to an IB rate
+ * enum.
+ * @mult: multiple to convert.
+ */
+enum ib_rate mult_to_ib_rate(int mult) __attribute_const__;
+
struct ib_ah_attr {
struct ib_global_route grh;
u16 dlid;
-
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