Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d0e7bb141837db620f24406ca8b4667424138d42
Commit: d0e7bb141837db620f24406ca8b4667424138d42
Parent: 9d41b7fdeadb76bd4d06c16803daffd9fcf8dc7f
Author: Sean Hefty <[EMAIL PROTECTED]>
AuthorDate: Thu Apr 5 10:51:10 2007 -0700
Committer: Roland Dreier <[EMAIL PROTECTED]>
CommitDate: Tue Apr 24 16:31:12 2007 -0700
IB/sa: Set src_path_bits correctly in ib_init_ah_from_path()
src_path_bits needs to mask off the base LID value.
Signed-off-by: Sean Hefty <[EMAIL PROTECTED]>
---
drivers/infiniband/core/sa_query.c | 24 +++++++++++++++++++++++-
1 files changed, 23 insertions(+), 1 deletions(-)
diff --git a/drivers/infiniband/core/sa_query.c
b/drivers/infiniband/core/sa_query.c
index 68db633..9a7eaad 100644
--- a/drivers/infiniband/core/sa_query.c
+++ b/drivers/infiniband/core/sa_query.c
@@ -57,6 +57,7 @@ MODULE_LICENSE("Dual BSD/GPL");
struct ib_sa_sm_ah {
struct ib_ah *ah;
struct kref ref;
+ u8 src_path_mask;
};
struct ib_sa_port {
@@ -380,6 +381,7 @@ static void update_sm_ah(struct work_struct *work)
}
kref_init(&new_ah->ref);
+ new_ah->src_path_mask = (1 << port_attr.lmc) - 1;
memset(&ah_attr, 0, sizeof ah_attr);
ah_attr.dlid = port_attr.sm_lid;
@@ -460,6 +462,25 @@ void ib_sa_cancel_query(int id, struct ib_sa_query *query)
}
EXPORT_SYMBOL(ib_sa_cancel_query);
+static u8 get_src_path_mask(struct ib_device *device, u8 port_num)
+{
+ struct ib_sa_device *sa_dev;
+ struct ib_sa_port *port;
+ unsigned long flags;
+ u8 src_path_mask;
+
+ sa_dev = ib_get_client_data(device, &sa_client);
+ if (!sa_dev)
+ return 0x7f;
+
+ port = &sa_dev->port[port_num - sa_dev->start_port];
+ spin_lock_irqsave(&port->ah_lock, flags);
+ src_path_mask = port->sm_ah ? port->sm_ah->src_path_mask : 0x7f;
+ spin_unlock_irqrestore(&port->ah_lock, flags);
+
+ return src_path_mask;
+}
+
int ib_init_ah_from_path(struct ib_device *device, u8 port_num,
struct ib_sa_path_rec *rec, struct ib_ah_attr *ah_attr)
{
@@ -469,7 +490,8 @@ int ib_init_ah_from_path(struct ib_device *device, u8
port_num,
memset(ah_attr, 0, sizeof *ah_attr);
ah_attr->dlid = be16_to_cpu(rec->dlid);
ah_attr->sl = rec->sl;
- ah_attr->src_path_bits = be16_to_cpu(rec->slid) & 0x7f;
+ ah_attr->src_path_bits = be16_to_cpu(rec->slid) &
+ get_src_path_mask(device, port_num);
ah_attr->port_num = port_num;
ah_attr->static_rate = rec->rate;
-
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