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authorBart Van Assche <bvanassche@acm.org>2010-08-03 14:08:45 +0000
committerRoland Dreier <rolandd@cisco.com>2010-08-04 13:02:26 -0700
commit89de74866b846cc48780fda3de7fd223296aaca9 (patch)
treebdcaebc89fb60843fb8b881ed4a1dee7e064bc41 /drivers/infiniband/ulp
parentIB/srp: Make receive buffer handling more robust (diff)
downloadlinux-dev-89de74866b846cc48780fda3de7fd223296aaca9.tar.xz
linux-dev-89de74866b846cc48780fda3de7fd223296aaca9.zip
IB/srp: Export req_lim via sysfs
Export req_lim via sysfs for debugging. Signed-off-by: Bart Van Assche <bart.vanassche@gmail.com> Acked-by: David Dillow <dave@thedillows.org> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/ulp')
-rw-r--r--drivers/infiniband/ulp/srp/ib_srp.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index ffdd2d181f65..7f8f16bad753 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -1552,6 +1552,18 @@ static ssize_t show_orig_dgid(struct device *dev,
return sprintf(buf, "%pI6\n", target->orig_dgid);
}
+static ssize_t show_req_lim(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct srp_target_port *target = host_to_target(class_to_shost(dev));
+
+ if (target->state == SRP_TARGET_DEAD ||
+ target->state == SRP_TARGET_REMOVED)
+ return -ENODEV;
+
+ return sprintf(buf, "%d\n", target->req_lim);
+}
+
static ssize_t show_zero_req_lim(struct device *dev,
struct device_attribute *attr, char *buf)
{
@@ -1586,6 +1598,7 @@ static DEVICE_ATTR(service_id, S_IRUGO, show_service_id, NULL);
static DEVICE_ATTR(pkey, S_IRUGO, show_pkey, NULL);
static DEVICE_ATTR(dgid, S_IRUGO, show_dgid, NULL);
static DEVICE_ATTR(orig_dgid, S_IRUGO, show_orig_dgid, NULL);
+static DEVICE_ATTR(req_lim, S_IRUGO, show_req_lim, NULL);
static DEVICE_ATTR(zero_req_lim, S_IRUGO, show_zero_req_lim, NULL);
static DEVICE_ATTR(local_ib_port, S_IRUGO, show_local_ib_port, NULL);
static DEVICE_ATTR(local_ib_device, S_IRUGO, show_local_ib_device, NULL);
@@ -1597,6 +1610,7 @@ static struct device_attribute *srp_host_attrs[] = {
&dev_attr_pkey,
&dev_attr_dgid,
&dev_attr_orig_dgid,
+ &dev_attr_req_lim,
&dev_attr_zero_req_lim,
&dev_attr_local_ib_port,
&dev_attr_local_ib_device,