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authorAlexander Duyck <alexander.h.duyck@intel.com>2013-09-28 06:00:12 (GMT)
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2013-10-10 04:05:10 (GMT)
commitc304fdac6cc0aab1f01e0f2b32c881d908a57a84 (patch)
tree12c3e85b90554dace43709b67c9f2047f5e97dbf
parent6d779b41f715ce7cd0f3ddbf809a3b8aaff72115 (diff)
downloadlinux-c304fdac6cc0aab1f01e0f2b32c881d908a57a84.tar.xz
i40e: Drop unused completed stat
The Tx "completed" stat was part of the original rewrite for detecting Tx hangs. However some time ago in ixgbe I determined that we could just use the packets stat instead. Since then this stat was removed from ixgbe and it serves no purpose in i40e so it can be dropped. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
-rw-r--r--drivers/net/ethernet/intel/i40e/i40e_debugfs.c3
-rw-r--r--drivers/net/ethernet/intel/i40e/i40e_txrx.c3
-rw-r--r--drivers/net/ethernet/intel/i40e/i40e_txrx.h1
3 files changed, 2 insertions, 5 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
index 8dbd91f..0b01c61 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
@@ -560,10 +560,9 @@ static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid)
vsi->tx_rings[i].tx_stats.bytes,
vsi->tx_rings[i].tx_stats.restart_queue);
dev_info(&pf->pdev->dev,
- " tx_rings[%i]: tx_stats: tx_busy = %lld, completed = %lld, tx_done_old = %lld\n",
+ " tx_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld\n",
i,
vsi->tx_rings[i].tx_stats.tx_busy,
- vsi->tx_rings[i].tx_stats.completed,
vsi->tx_rings[i].tx_stats.tx_done_old);
dev_info(&pf->pdev->dev,
" tx_rings[%i]: size = %i, dma = 0x%08lx\n",
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index 49d2cfa..32c9aeb 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -346,8 +346,7 @@ static bool i40e_clean_tx_irq(struct i40e_ring *tx_ring, int budget)
cpu_to_le64(I40E_TX_DESC_DTYPE_DESC_DONE)))
break;
- /* count the packet as being completed */
- tx_ring->tx_stats.completed++;
+ /* clear next_to_watch to prevent false hangs */
tx_buf->next_to_watch = NULL;
tx_buf->time_stamp = 0;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.h b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
index b1d7722..2fbacaf 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
@@ -134,7 +134,6 @@ struct i40e_tx_queue_stats {
u64 bytes;
u64 restart_queue;
u64 tx_busy;
- u64 completed;
u64 tx_done_old;
};