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ixgbevf: get rid of custom busy polling code

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In linux-4.5, busy polling was implemented in core
NAPI stack, meaning that all custom implementation can
be removed from drivers.

Not only we remove lot's of code, we also remove one lock
operation in fast path, and allow GRO to do its job.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet
2017-02-02 16:59:18 -08:00
committed by David S. Miller
parent 3ffc1af576
commit 508aac6dee
3 changed files with 0 additions and 215 deletions
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38
drivers/net/ethernet/intel/ixgbevf/ethtool.c
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@@ -432,11 +432,6 @@ static void ixgbevf_get_ethtool_stats(struct net_device *netdev,
if (!ring) {
data[i++] = 0;
data[i++] = 0;
#ifdef BP_EXTENDED_STATS
data[i++] = 0;
data[i++] = 0;
data[i++] = 0;
#endif
continue;
}
@@ -446,12 +441,6 @@ static void ixgbevf_get_ethtool_stats(struct net_device *netdev,
data[i + 1] = ring->stats.bytes;
} while (u64_stats_fetch_retry_irq(&ring->syncp, start));
i += 2;
#ifdef BP_EXTENDED_STATS
data[i] = ring->stats.yields;
data[i + 1] = ring->stats.misses;
data[i + 2] = ring->stats.cleaned;
i += 3;
#endif
}
/* populate Rx queue data */
@@ -460,11 +449,6 @@ static void ixgbevf_get_ethtool_stats(struct net_device *netdev,
if (!ring) {
data[i++] = 0;
data[i++] = 0;
#ifdef BP_EXTENDED_STATS
data[i++] = 0;
data[i++] = 0;
data[i++] = 0;
#endif
continue;
}
@@ -474,12 +458,6 @@ static void ixgbevf_get_ethtool_stats(struct net_device *netdev,
data[i + 1] = ring->stats.bytes;
} while (u64_stats_fetch_retry_irq(&ring->syncp, start));
i += 2;
#ifdef BP_EXTENDED_STATS
data[i] = ring->stats.yields;
data[i + 1] = ring->stats.misses;
data[i + 2] = ring->stats.cleaned;
i += 3;
#endif
}
}
@@ -507,28 +485,12 @@ static void ixgbevf_get_strings(struct net_device *netdev, u32 stringset,
p += ETH_GSTRING_LEN;
sprintf(p, "tx_queue_%u_bytes", i);
p += ETH_GSTRING_LEN;
#ifdef BP_EXTENDED_STATS
sprintf(p, "tx_queue_%u_bp_napi_yield", i);
p += ETH_GSTRING_LEN;
sprintf(p, "tx_queue_%u_bp_misses", i);
p += ETH_GSTRING_LEN;
sprintf(p, "tx_queue_%u_bp_cleaned", i);
p += ETH_GSTRING_LEN;
#endif /* BP_EXTENDED_STATS */
}
for (i = 0; i < adapter->num_rx_queues; i++) {
sprintf(p, "rx_queue_%u_packets", i);
p += ETH_GSTRING_LEN;
sprintf(p, "rx_queue_%u_bytes", i);
p += ETH_GSTRING_LEN;
#ifdef BP_EXTENDED_STATS
sprintf(p, "rx_queue_%u_bp_poll_yield", i);
p += ETH_GSTRING_LEN;
sprintf(p, "rx_queue_%u_bp_misses", i);
p += ETH_GSTRING_LEN;
sprintf(p, "rx_queue_%u_bp_cleaned", i);
p += ETH_GSTRING_LEN;
#endif /* BP_EXTENDED_STATS */
}
break;
}