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IB/srp: export req_lim via sysfs

PATCH Applied Bart Van Assche 2 participants 2 messages Aug 3, 2010 – Aug 4, 2010 1 message not in the archive

Subsystems (2)
InfiniBand SCSI RDMA protocol (SRP) initiator

v3 of 5 Applied Latest is v5 →

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Bart Van Assche

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PATCH v3 4/4 IB/srp: export req_lim via sysfs

Exports req_lim via sysfs, which is convenient for debugging purposes.

Signed-off-by Bart Van Assche <[email protected]>
Cc Roland Dreier <[email protected]>
Acked-by David Dillow <dave-i1Mk8JYDVaaSihdK6806/[email protected]>
---
 drivers/infiniband/ulp/srp/ib_srp.c |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)
drivers/infiniband/ulp/srp/ib_srp.c +14 -0
index c810e52..bf546ac 100644
@@ -1732,6 +1732,18 @@ 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)
 {

@@ -1766,6 +1778,7 @@ 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);

@@ -1777,6 +1790,7 @@ 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,
Signature · 5 lines
1.6.4.2
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Applied
#2 lore raw

Thanks, applied

Signature · 6 lines
Roland Dreier <[email protected]> || For corporate legal information go to:
http://www.cisco.com/web/about/doing_business/legal/cri/index.html
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