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authorSean Hefty <sean.hefty@intel.com>2007-11-27 08:11:04 (GMT)
committerRoland Dreier <rolandd@cisco.com>2008-01-25 22:15:30 (GMT)
commit4fc8cd4919428f9b86f0b65e2f3245a1c186737f (patch)
tree07bca41da2be7504e6d17745fb86264e59a4958e /drivers/infiniband/core/mad.c
parent547af76521b3fd4b9ec5c9a9975a17eadb95e6f6 (diff)
downloadlinux-fsl-qoriq-4fc8cd4919428f9b86f0b65e2f3245a1c186737f.tar.xz
IB/mad: Report number of times a mad was retried
To allow ULPs to tune timeout values and capture retry statistics, report the number of times that a mad send operation was retried. For RMPP mads, report the total number of times that the any portion (send window) of the send operation was retried. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/core/mad.c')
-rw-r--r--drivers/infiniband/core/mad.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c
index 649335a..5eace99 100644
--- a/drivers/infiniband/core/mad.c
+++ b/drivers/infiniband/core/mad.c
@@ -1100,7 +1100,9 @@ int ib_post_send_mad(struct ib_mad_send_buf *send_buf,
mad_send_wr->tid = ((struct ib_mad_hdr *) send_buf->mad)->tid;
/* Timeout will be updated after send completes */
mad_send_wr->timeout = msecs_to_jiffies(send_buf->timeout_ms);
- mad_send_wr->retries = send_buf->retries;
+ mad_send_wr->max_retries = send_buf->retries;
+ mad_send_wr->retries_left = send_buf->retries;
+ send_buf->retries = 0;
/* Reference for work request to QP + response */
mad_send_wr->refcount = 1 + (mad_send_wr->timeout > 0);
mad_send_wr->status = IB_WC_SUCCESS;
@@ -2436,9 +2438,12 @@ static int retry_send(struct ib_mad_send_wr_private *mad_send_wr)
{
int ret;
- if (!mad_send_wr->retries--)
+ if (!mad_send_wr->retries_left)
return -ETIMEDOUT;
+ mad_send_wr->retries_left--;
+ mad_send_wr->send_buf.retries++;
+
mad_send_wr->timeout = msecs_to_jiffies(mad_send_wr->send_buf.timeout_ms);
if (mad_send_wr->mad_agent_priv->agent.rmpp_version) {