[ofa-general] [PATCH] for-2.6.23 ib/sa: use correct index for default pkey
Sean Hefty
sean.hefty at intel.com
Wed May 23 14:14:40 PDT 2007
MADs sent to the SA should use the index for the default pkey. There's
no requirement that the default pkey be stored at index 0.
Signed-off-by: Sean Hefty <sean.hefty at intel.com>
---
Patch requires the latest changes to the pkey cache. This fix is not a
priority, but it appears to be the only issue in the stack with
supporting multiple partitions, which is a requirement for the labs.
drivers/infiniband/core/sa_query.c | 85 +++++++++++++++++++++---------------
include/rdma/ib_mad.h | 3 +
2 files changed, 53 insertions(+), 35 deletions(-)
diff --git a/drivers/infiniband/core/sa_query.c b/drivers/infiniband/core/sa_query.c
index 6469406..4791d01 100644
--- a/drivers/infiniband/core/sa_query.c
+++ b/drivers/infiniband/core/sa_query.c
@@ -56,6 +56,7 @@ MODULE_LICENSE("Dual BSD/GPL");
struct ib_sa_sm_ah {
struct ib_ah *ah;
struct kref ref;
+ u16 pkey_index;
u8 src_path_mask;
};
@@ -382,6 +383,13 @@ static void update_sm_ah(struct work_struct *work)
kref_init(&new_ah->ref);
new_ah->src_path_mask = (1 << port_attr.lmc) - 1;
+ new_ah->pkey_index = 0;
+ if (ib_find_pkey(port->agent->device, port->port_num,
+ IB_DEFAULT_PKEY_FULL, &new_ah->pkey_index) &&
+ ib_find_pkey(port->agent->device, port->port_num,
+ IB_DEFAULT_PKEY_PARTIAL, &new_ah->pkey_index))
+ printk(KERN_ERR "Couldn't find index for default PKey\n");
+
memset(&ah_attr, 0, sizeof ah_attr);
ah_attr.dlid = port_attr.sm_lid;
ah_attr.sl = port_attr.sm_sl;
@@ -512,6 +520,35 @@ int ib_init_ah_from_path(struct ib_device *device, u8 port_num,
}
EXPORT_SYMBOL(ib_init_ah_from_path);
+static int alloc_mad(struct ib_sa_query *query, gfp_t gfp_mask)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&query->port->ah_lock, flags);
+ kref_get(&query->port->sm_ah->ref);
+ query->sm_ah = query->port->sm_ah;
+ spin_unlock_irqrestore(&query->port->ah_lock, flags);
+
+ query->mad_buf = ib_create_send_mad(query->port->agent, 1,
+ query->sm_ah->pkey_index,
+ 0, IB_MGMT_SA_HDR, IB_MGMT_SA_DATA,
+ gfp_mask);
+ if (!query->mad_buf) {
+ kref_put(&query->sm_ah->ref, free_sm_ah);
+ return -ENOMEM;
+ }
+
+ query->mad_buf->ah = query->sm_ah->ah;
+
+ return 0;
+}
+
+static void free_mad(struct ib_sa_query *query)
+{
+ ib_free_send_mad(query->mad_buf);
+ kref_put(&query->sm_ah->ref, free_sm_ah);
+}
+
static void init_mad(struct ib_sa_mad *mad, struct ib_mad_agent *agent)
{
unsigned long flags;
@@ -548,20 +585,11 @@ retry:
query->mad_buf->context[0] = query;
query->id = id;
- spin_lock_irqsave(&query->port->ah_lock, flags);
- kref_get(&query->port->sm_ah->ref);
- query->sm_ah = query->port->sm_ah;
- spin_unlock_irqrestore(&query->port->ah_lock, flags);
-
- query->mad_buf->ah = query->sm_ah->ah;
-
ret = ib_post_send_mad(query->mad_buf, NULL);
if (ret) {
spin_lock_irqsave(&idr_lock, flags);
idr_remove(&query_idr, id);
spin_unlock_irqrestore(&idr_lock, flags);
-
- kref_put(&query->sm_ah->ref, free_sm_ah);
}
/*
@@ -647,13 +675,10 @@ int ib_sa_path_rec_get(struct ib_sa_client *client,
if (!query)
return -ENOMEM;
- query->sa_query.mad_buf = ib_create_send_mad(agent, 1, 0,
- 0, IB_MGMT_SA_HDR,
- IB_MGMT_SA_DATA, gfp_mask);
- if (!query->sa_query.mad_buf) {
- ret = -ENOMEM;
+ query->sa_query.port = port;
+ ret = alloc_mad(&query->sa_query, gfp_mask);
+ if (ret)
goto err1;
- }
ib_sa_client_get(client);
query->sa_query.client = client;
@@ -665,7 +690,6 @@ int ib_sa_path_rec_get(struct ib_sa_client *client,
query->sa_query.callback = callback ? ib_sa_path_rec_callback : NULL;
query->sa_query.release = ib_sa_path_rec_release;
- 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);
mad->sa_hdr.comp_mask = comp_mask;
@@ -683,7 +707,7 @@ int ib_sa_path_rec_get(struct ib_sa_client *client,
err2:
*sa_query = NULL;
ib_sa_client_put(query->sa_query.client);
- ib_free_send_mad(query->sa_query.mad_buf);
+ free_mad(&query->sa_query);
err1:
kfree(query);
@@ -773,13 +797,10 @@ int ib_sa_service_rec_query(struct ib_sa_client *client,
if (!query)
return -ENOMEM;
- query->sa_query.mad_buf = ib_create_send_mad(agent, 1, 0,
- 0, IB_MGMT_SA_HDR,
- IB_MGMT_SA_DATA, gfp_mask);
- if (!query->sa_query.mad_buf) {
- ret = -ENOMEM;
+ query->sa_query.port = port;
+ ret = alloc_mad(&query->sa_query, gfp_mask);
+ if (ret)
goto err1;
- }
ib_sa_client_get(client);
query->sa_query.client = client;
@@ -791,7 +812,6 @@ int ib_sa_service_rec_query(struct ib_sa_client *client,
query->sa_query.callback = callback ? ib_sa_service_rec_callback : NULL;
query->sa_query.release = ib_sa_service_rec_release;
- query->sa_query.port = port;
mad->mad_hdr.method = method;
mad->mad_hdr.attr_id = cpu_to_be16(IB_SA_ATTR_SERVICE_REC);
mad->sa_hdr.comp_mask = comp_mask;
@@ -810,7 +830,7 @@ int ib_sa_service_rec_query(struct ib_sa_client *client,
err2:
*sa_query = NULL;
ib_sa_client_put(query->sa_query.client);
- ib_free_send_mad(query->sa_query.mad_buf);
+ free_mad(&query->sa_query);
err1:
kfree(query);
@@ -869,13 +889,10 @@ int ib_sa_mcmember_rec_query(struct ib_sa_client *client,
if (!query)
return -ENOMEM;
- query->sa_query.mad_buf = ib_create_send_mad(agent, 1, 0,
- 0, IB_MGMT_SA_HDR,
- IB_MGMT_SA_DATA, gfp_mask);
- if (!query->sa_query.mad_buf) {
- ret = -ENOMEM;
+ query->sa_query.port = port;
+ ret = alloc_mad(&query->sa_query, gfp_mask);
+ if (ret)
goto err1;
- }
ib_sa_client_get(client);
query->sa_query.client = client;
@@ -887,7 +904,6 @@ int ib_sa_mcmember_rec_query(struct ib_sa_client *client,
query->sa_query.callback = callback ? ib_sa_mcmember_rec_callback : NULL;
query->sa_query.release = ib_sa_mcmember_rec_release;
- query->sa_query.port = port;
mad->mad_hdr.method = method;
mad->mad_hdr.attr_id = cpu_to_be16(IB_SA_ATTR_MC_MEMBER_REC);
mad->sa_hdr.comp_mask = comp_mask;
@@ -906,7 +922,7 @@ int ib_sa_mcmember_rec_query(struct ib_sa_client *client,
err2:
*sa_query = NULL;
ib_sa_client_put(query->sa_query.client);
- ib_free_send_mad(query->sa_query.mad_buf);
+ free_mad(&query->sa_query);
err1:
kfree(query);
@@ -939,8 +955,7 @@ static void send_handler(struct ib_mad_agent *agent,
idr_remove(&query_idr, query->id);
spin_unlock_irqrestore(&idr_lock, flags);
- ib_free_send_mad(mad_send_wc->send_buf);
- kref_put(&query->sm_ah->ref, free_sm_ah);
+ free_mad(query);
ib_sa_client_put(query->client);
query->release(query);
}
diff --git a/include/rdma/ib_mad.h b/include/rdma/ib_mad.h
index 739fa4d..30712dd 100644
--- a/include/rdma/ib_mad.h
+++ b/include/rdma/ib_mad.h
@@ -111,6 +111,9 @@
#define IB_QP1_QKEY 0x80010000
#define IB_QP_SET_QKEY 0x80000000
+#define IB_DEFAULT_PKEY_PARTIAL 0x7FFF
+#define IB_DEFAULT_PKEY_FULL 0xFFFF
+
enum {
IB_MGMT_MAD_HDR = 24,
IB_MGMT_MAD_DATA = 232,
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