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i40e: Tweak for-loop in i40e_ethtool.c

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Tweak a for-loop to make it easier to add conditional stats in the future.

Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Catherine Sullivan 2014-03-14 07:32:30 +00:00 committed by Jeff Kirsher
parent 7c12200797
commit 99c472a398
1 changed files with 5 additions and 3 deletions
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8
drivers/net/ethernet/intel/i40e/i40e_ethtool.c
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@ -649,7 +649,7 @@ static void i40e_get_ethtool_stats(struct net_device *netdev,
sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
}
rcu_read_lock();
for (j = 0; j < vsi->num_queue_pairs; j++, i += 4) {
for (j = 0; j < vsi->num_queue_pairs; j++) {
struct i40e_ring *tx_ring = ACCESS_ONCE(vsi->tx_rings[j]);
struct i40e_ring *rx_ring;
@ -662,14 +662,16 @@ static void i40e_get_ethtool_stats(struct net_device *netdev,
data[i] = tx_ring->stats.packets;
data[i + 1] = tx_ring->stats.bytes;
} while (u64_stats_fetch_retry_irq(&tx_ring->syncp, start));
i += 2;
/* Rx ring is the 2nd half of the queue pair */
rx_ring = &tx_ring[1];
do {
start = u64_stats_fetch_begin_irq(&rx_ring->syncp);
data[i + 2] = rx_ring->stats.packets;
data[i + 3] = rx_ring->stats.bytes;
data[i] = rx_ring->stats.packets;
data[i + 1] = rx_ring->stats.bytes;
} while (u64_stats_fetch_retry_irq(&rx_ring->syncp, start));
i += 2;
}
rcu_read_unlock();
if (vsi == pf->vsi[pf->lan_vsi]) {