diff options
| author | Prasad Kanneganti <prasad.kanneganti@cavium.com> | 2018-03-07 22:23:32 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-03-08 21:46:12 -0500 |
| commit | cecd8d81ac5a7551d70c331b7f4ef7eb2609f336 (patch) | |
| tree | d4560584165e1a6b616475c5524183928e6f2af6 /drivers/net/ethernet/cavium/liquidio/request_manager.c | |
| parent | fcbedd0f29692c0aea3a32d41c8739de7420f140 (diff) | |
| download | linux-cecd8d81ac5a7551d70c331b7f4ef7eb2609f336.tar.bz2 | |
liquidio: avoid doing useless work
Avoid doing useless work by making sure that the response_list is not empty
before scheduling work to process it.
Signed-off-by: Prasad Kanneganti <prasad.kanneganti@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/cavium/liquidio/request_manager.c')
| -rw-r--r-- | drivers/net/ethernet/cavium/liquidio/request_manager.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/ethernet/cavium/liquidio/request_manager.c b/drivers/net/ethernet/cavium/liquidio/request_manager.c index e07d2093b971..2766af05b89e 100644 --- a/drivers/net/ethernet/cavium/liquidio/request_manager.c +++ b/drivers/net/ethernet/cavium/liquidio/request_manager.c @@ -366,6 +366,7 @@ int lio_process_iq_request_list(struct octeon_device *oct, struct octeon_instr_queue *iq, u32 napi_budget) { + struct cavium_wq *cwq = &oct->dma_comp_wq; int reqtype; void *buf; u32 old = iq->flush_index; @@ -450,6 +451,10 @@ lio_process_iq_request_list(struct octeon_device *oct, bytes_compl); iq->flush_index = old; + if (atomic_read(&oct->response_list + [OCTEON_ORDERED_SC_LIST].pending_req_count)) + queue_delayed_work(cwq->wq, &cwq->wk.work, msecs_to_jiffies(1)); + return inst_count; } |