ixgbe: Fix an accounting problem when the Rx FIFO is full
The rx_no_dma_resources counter reported by ethtool -S ethX is not counting correctly. In 82599, the queue mappings for the counters need to be mapped properly, and accounted for properly. Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Acked-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -3629,6 +3629,12 @@ void ixgbe_update_stats(struct ixgbe_adapter *adapter)
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u64 total_mpc = 0;
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u32 i, missed_rx = 0, mpc, bprc, lxon, lxoff, xon_off_tot;
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if (hw->mac.type == ixgbe_mac_82599EB) {
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for (i = 0; i < 16; i++)
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adapter->hw_rx_no_dma_resources +=
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IXGBE_READ_REG(hw, IXGBE_QPRDC(i));
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}
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adapter->stats.crcerrs += IXGBE_READ_REG(hw, IXGBE_CRCERRS);
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for (i = 0; i < 8; i++) {
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/* for packet buffers not used, the register should read 0 */
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@ -3648,7 +3654,6 @@ void ixgbe_update_stats(struct ixgbe_adapter *adapter)
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adapter->stats.pxoffrxc[i] += IXGBE_READ_REG(hw,
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IXGBE_PXOFFRXCNT(i));
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adapter->stats.qprdc[i] += IXGBE_READ_REG(hw, IXGBE_QPRDC(i));
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adapter->hw_rx_no_dma_resources += adapter->stats.qprdc[i];
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} else {
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adapter->stats.pxonrxc[i] += IXGBE_READ_REG(hw,
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IXGBE_PXONRXC(i));
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