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Diffstat (limited to 'drivers/infiniband/ulp/srp/ib_srp.c')
-rw-r--r--drivers/infiniband/ulp/srp/ib_srp.c21
1 files changed, 15 insertions, 6 deletions
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 4ba790f54a2..f1401e1f2f9 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -894,12 +894,8 @@ static struct srp_iu *__srp_get_tx_iu(struct srp_target_port *target)
if (target->tx_head - target->tx_tail >= SRP_SQ_SIZE)
return NULL;
- if (unlikely(target->req_lim < 1)) {
- if (printk_ratelimit())
- printk(KERN_DEBUG PFX "Target has req_lim %d\n",
- target->req_lim);
- return NULL;
- }
+ if (unlikely(target->req_lim < 1))
+ ++target->zero_req_lim;
return target->tx_ring[target->tx_head & SRP_SQ_SIZE];
}
@@ -1422,11 +1418,23 @@ static ssize_t show_dgid(struct class_device *cdev, char *buf)
be16_to_cpu(((__be16 *) target->path.dgid.raw)[7]));
}
+static ssize_t show_zero_req_lim(struct class_device *cdev, char *buf)
+{
+ struct srp_target_port *target = host_to_target(class_to_shost(cdev));
+
+ if (target->state == SRP_TARGET_DEAD ||
+ target->state == SRP_TARGET_REMOVED)
+ return -ENODEV;
+
+ return sprintf(buf, "%d\n", target->zero_req_lim);
+}
+
static CLASS_DEVICE_ATTR(id_ext, S_IRUGO, show_id_ext, NULL);
static CLASS_DEVICE_ATTR(ioc_guid, S_IRUGO, show_ioc_guid, NULL);
static CLASS_DEVICE_ATTR(service_id, S_IRUGO, show_service_id, NULL);
static CLASS_DEVICE_ATTR(pkey, S_IRUGO, show_pkey, NULL);
static CLASS_DEVICE_ATTR(dgid, S_IRUGO, show_dgid, NULL);
+static CLASS_DEVICE_ATTR(zero_req_lim, S_IRUGO, show_zero_req_lim, NULL);
static struct class_device_attribute *srp_host_attrs[] = {
&class_device_attr_id_ext,
@@ -1434,6 +1442,7 @@ static struct class_device_attribute *srp_host_attrs[] = {
&class_device_attr_service_id,
&class_device_attr_pkey,
&class_device_attr_dgid,
+ &class_device_attr_zero_req_lim,
NULL
};