>From 33f03b1f3a4e5a1f27b21378cd9e3e402e6e39fe Mon Sep 17 00:00:00 2001
From: Jack Wang <jinpu.wang@xxxxxxxxxxxxxxxx>
Date: Mon, 12 Dec 2016 10:12:39 +0100
Subject: [PATCH 2/4] IB/core: export ib_get_cached_port_state
Export function for rdma_cm, patch will follow.
Signed-off-by: Jack Wang <jinpu.wang@xxxxxxxxxxxxxxxx>
Reviewed-by: Michael Wang <yun.wang@xxxxxxxxxxxxxxxx>
Acked-by: Sean Hefty <sean.hefty@xxxxxxxxx>
---
drivers/infiniband/core/cache.c | 18 ++++++++++++++++++
include/rdma/ib_cache.h | 13 +++++++++++++
2 files changed, 31 insertions(+)
diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c
index 87fd7c3..f91886b 100644
--- a/drivers/infiniband/core/cache.c
+++ b/drivers/infiniband/core/cache.c
@@ -1021,6 +1021,24 @@ int ib_get_cached_lmc(struct ib_device *device,
}
EXPORT_SYMBOL(ib_get_cached_lmc);
+int ib_get_cached_port_state(struct ib_device *device,
+ u8 port_num,
+ enum ib_port_state *port_state)
+{
+ unsigned long flags;
+ int ret = 0;
+
+ if (port_num < rdma_start_port(device) || port_num > rdma_end_port(device))
+ return -EINVAL;
+
+ read_lock_irqsave(&device->cache.lock, flags);
+ *port_state = device->cache.port_state_cache[port_num -
rdma_start_port(device)];
+ read_unlock_irqrestore(&device->cache.lock, flags);
+
+ return ret;
+}
+EXPORT_SYMBOL(ib_get_cached_port_state);
+
static void ib_cache_update(struct ib_device *device,
u8 port)
{
diff --git a/include/rdma/ib_cache.h b/include/rdma/ib_cache.h
index e30f19b..385ec88 100644
--- a/include/rdma/ib_cache.h
+++ b/include/rdma/ib_cache.h
@@ -165,4 +165,17 @@ int ib_get_cached_lmc(struct ib_device *device,
u8 port_num,
u8 *lmc);
+/**
+ * ib_get_cached_port_state - Returns a cached port state table entry
+ * @device: The device to query.
+ * @port_num: The port number of the device to query.
+ * @port_state: port_state for the specified port for that device.
+ *
+ * ib_get_cached_port_state() fetches the specified port_state table
entry stored in
+ * the local software cache.
+ */
+int ib_get_cached_port_state(struct ib_device *device,
+ u8 port_num,
+ enum ib_port_state *port_active);
+
#endif /* _IB_CACHE_H */
--
2.7.4
--
Jinpu Wang
Linux Kernel Developer
ProfitBricks GmbH
Greifswalder Str. 207
D - 10405 Berlin
Tel: +49 30 577 008 042
Fax: +49 30 577 008 299
Email: jinpu.wang@xxxxxxxxxxxxxxxx
URL: https://www.profitbricks.de
Sitz der Gesellschaft: Berlin
Registergericht: Amtsgericht Charlottenburg, HRB 125506 B
Geschäftsführer: Achim Weiss
From 33f03b1f3a4e5a1f27b21378cd9e3e402e6e39fe Mon Sep 17 00:00:00 2001
From: Jack Wang <jinpu.wang@xxxxxxxxxxxxxxxx>
Date: Mon, 12 Dec 2016 10:12:39 +0100
Subject: [PATCH 2/4] IB/core: export ib_get_cached_port_state
Export function for rdma_cm, patch will follow.
Signed-off-by: Jack Wang <jinpu.wang@xxxxxxxxxxxxxxxx>
Reviewed-by: Michael Wang <yun.wang@xxxxxxxxxxxxxxxx>
Acked-by: Sean Hefty <sean.hefty@xxxxxxxxx>
---
drivers/infiniband/core/cache.c | 18 ++++++++++++++++++
include/rdma/ib_cache.h | 13 +++++++++++++
2 files changed, 31 insertions(+)
diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c
index 87fd7c3..f91886b 100644
--- a/drivers/infiniband/core/cache.c
+++ b/drivers/infiniband/core/cache.c
@@ -1021,6 +1021,24 @@ int ib_get_cached_lmc(struct ib_device *device,
}
EXPORT_SYMBOL(ib_get_cached_lmc);
+int ib_get_cached_port_state(struct ib_device *device,
+ u8 port_num,
+ enum ib_port_state *port_state)
+{
+ unsigned long flags;
+ int ret = 0;
+
+ if (port_num < rdma_start_port(device) || port_num > rdma_end_port(device))
+ return -EINVAL;
+
+ read_lock_irqsave(&device->cache.lock, flags);
+ *port_state = device->cache.port_state_cache[port_num - rdma_start_port(device)];
+ read_unlock_irqrestore(&device->cache.lock, flags);
+
+ return ret;
+}
+EXPORT_SYMBOL(ib_get_cached_port_state);
+
static void ib_cache_update(struct ib_device *device,
u8 port)
{
diff --git a/include/rdma/ib_cache.h b/include/rdma/ib_cache.h
index e30f19b..385ec88 100644
--- a/include/rdma/ib_cache.h
+++ b/include/rdma/ib_cache.h
@@ -165,4 +165,17 @@ int ib_get_cached_lmc(struct ib_device *device,
u8 port_num,
u8 *lmc);
+/**
+ * ib_get_cached_port_state - Returns a cached port state table entry
+ * @device: The device to query.
+ * @port_num: The port number of the device to query.
+ * @port_state: port_state for the specified port for that device.
+ *
+ * ib_get_cached_port_state() fetches the specified port_state table entry stored in
+ * the local software cache.
+ */
+int ib_get_cached_port_state(struct ib_device *device,
+ u8 port_num,
+ enum ib_port_state *port_active);
+
#endif /* _IB_CACHE_H */
--
2.7.4
