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ib_srpt: Avoid waiting for missing error completions

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Apparently with mlx4 firmware up to and including 2.30.8000 it is not
guaranteed that for a QP associated with an SRQ error completions are
generated for all pending work requests. Avoid triggering
srpt_pending_cmd_timeout() for missing error completions.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5370 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Bart Van Assche
2014-03-24 12:07:43 +00:00
parent b95b1f4d6c
commit e72f83a05a
1 changed files with 14 additions and 0 deletions
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14
srpt/src/ib_srpt.c
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@@ -1398,6 +1398,19 @@ out:
TRACE_EXIT();
}
void srpt_on_abort_cmd(struct scst_cmd *cmd)
{
struct srpt_send_ioctx *ioctx = scst_cmd_get_tgt_priv(cmd);
struct srpt_rdma_ch *ch = ioctx->ch;
if (ch->state >= CH_DISCONNECTED) {
PRINT_ERROR("Cmd %p: IB completion for idx %u has not"
" been received in time (SRPT command state %d)",
cmd, ioctx->ioctx.index, ioctx->state);
srpt_abort_cmd(ioctx, SCST_CONTEXT_THREAD);
}
}
/**
* srpt_handle_send_err_comp() - Process an IB_WC_SEND error completion.
*/
@@ -3761,6 +3774,7 @@ static struct scst_tgt_template srpt_template = {
.close_session = srpt_close_session,
.xmit_response = srpt_xmit_response,
.rdy_to_xfer = srpt_rdy_to_xfer,
.on_abort_cmd = srpt_on_abort_cmd,
.on_hw_pending_cmd_timeout = srpt_pending_cmd_timeout,
.on_free_cmd = srpt_on_free_cmd,
.task_mgmt_fn_done = srpt_tsk_mgmt_done,