RDMA/cxgb4: Add timeouts when waiting for FW responses
Don't hang a host thread if the FW stops responding. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
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@ -2050,8 +2050,15 @@ int c4iw_create_listen(struct iw_cm_id *cm_id, int backlog)
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goto fail3;
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/* wait for pass_open_rpl */
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wait_event(ep->com.waitq, ep->com.rpl_done);
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err = ep->com.rpl_err;
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wait_event_timeout(ep->com.waitq, ep->com.rpl_done, C4IW_WR_TO);
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if (ep->com.rpl_done)
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err = ep->com.rpl_err;
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else {
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printk(KERN_ERR MOD "Device %s not responding!\n",
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pci_name(ep->com.dev->rdev.lldi.pdev));
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ep->com.dev->rdev.flags = T4_FATAL_ERROR;
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err = -EIO;
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}
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if (!err) {
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cm_id->provider_data = ep;
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goto out;
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@ -2080,10 +2087,17 @@ int c4iw_destroy_listen(struct iw_cm_id *cm_id)
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err = listen_stop(ep);
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if (err)
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goto done;
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wait_event(ep->com.waitq, ep->com.rpl_done);
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wait_event_timeout(ep->com.waitq, ep->com.rpl_done, C4IW_WR_TO);
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if (ep->com.rpl_done)
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err = ep->com.rpl_err;
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else {
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printk(KERN_ERR MOD "Device %s not responding!\n",
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pci_name(ep->com.dev->rdev.lldi.pdev));
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ep->com.dev->rdev.flags = T4_FATAL_ERROR;
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err = -EIO;
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}
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cxgb4_free_stid(ep->com.dev->rdev.lldi.tids, ep->stid, PF_INET);
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done:
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err = ep->com.rpl_err;
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cm_id->rem_ref(cm_id);
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c4iw_put_ep(&ep->com);
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return err;
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