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RDMA/i40iw: Add virtual channel message queue

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Queue users of virtual channel on a waitqueue until the channel is
clear instead of failing the call when the channel is occupied.

Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Ismail, Mustafa
2016-04-18 10:33:03 -05:00
committed by Doug Ledford
parent f606d89330
commit f69c333162
6 changed files with 103 additions and 63 deletions
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8
drivers/infiniband/hw/i40iw/i40iw_verbs.c
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@@ -2148,7 +2148,6 @@ static int i40iw_get_protocol_stats(struct ib_device *ibdev,
struct i40iw_dev_hw_stats *hw_stats = &devstat->hw_stats;
struct timespec curr_time;
static struct timespec last_rd_time = {0, 0};
enum i40iw_status_code status = 0;
unsigned long flags;
curr_time = current_kernel_time();
@@ -2161,11 +2160,8 @@ static int i40iw_get_protocol_stats(struct ib_device *ibdev,
spin_unlock_irqrestore(&devstat->stats_lock, flags);
} else {
if (((u64)curr_time.tv_sec - (u64)last_rd_time.tv_sec) > 1)
status = i40iw_vchnl_vf_get_pe_stats(dev,
&devstat->hw_stats);
if (status)
return -ENOSYS;
if (i40iw_vchnl_vf_get_pe_stats(dev, &devstat->hw_stats))
return -ENOSYS;
}
stats->iw.ipInReceives = hw_stats->stat_value_64[I40IW_HW_STAT_INDEX_IP4RXPKTS] +