diff options
| author |   Mike Marciniszyn <mike.marciniszyn@cornelisnetworks.com> | 2021-03-29 09:54:08 -0400 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@nvidia.com> | 2021-04-07 20:19:00 -0300 |
| commit | 042a00f93aad5874937e00f36e68301f7e3a0af1 (patch) | |
| tree | 9ddf369d76b8d33b5db45bba1c8d2fa3022c84ce /drivers/infiniband/ulp/ipoib | |
| parent | IB/hfi1: Add AIP tx traces (diff) | |
| download | linux-dev-042a00f93aad5874937e00f36e68301f7e3a0af1.tar.xz linux-dev-042a00f93aad5874937e00f36e68301f7e3a0af1.zip | |
IB/{ipoib,hfi1}: Add a timeout handler for rdma_netdev
The current rdma_netdev handling in ipoib hooks the tx_timeout handler,
but prints out a totally useless message that prevents effective debugging
especially when multiple transmit queues are being used.
Add a tx_timeout rdma_netdev hook and implement the callback in the hfi1
to print additional information.
The existing non-helpful message is avoided when the driver has presented
a callback.
Link: https://lore.kernel.org/r/1617026056-50483-3-git-send-email-dennis.dalessandro@cornelisnetworks.com
Reviewed-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband/ulp/ipoib')
| -rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_main.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index 8f769ebaacc6..8ca80e27339a 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -1181,7 +1181,12 @@ unref: static void ipoib_timeout(struct net_device *dev, unsigned int txqueue) { struct ipoib_dev_priv *priv = ipoib_priv(dev); + struct rdma_netdev *rn = netdev_priv(dev); + if (rn->tx_timeout) { + rn->tx_timeout(dev, txqueue); + return; + } ipoib_warn(priv, "transmit timeout: latency %d msecs\n", jiffies_to_msecs(jiffies - dev_trans_start(dev))); ipoib_warn(priv, |