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net: systemport: log RX buffer allocation and RX/TX DMA failures

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To help troubleshoot heavy memory pressure conditions, add a bunch of
statistics counter to log RX buffer allocation and RX/TX DMA mapping
failures. These are reported like any other counters through the ethtool
stats interface.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Fainelli
2014-11-19 10:29:55 -08:00
committed by David S. Miller
parent 9c7077622d
commit 60b4ea1781
2 changed files with 12 additions and 1 deletions
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3
drivers/net/ethernet/broadcom/bcmsysport.h
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@@ -557,6 +557,9 @@ struct bcm_sysport_mib {
u32 rxchk_other_pkt_disc;
u32 rbuf_ovflow_cnt;
u32 rbuf_err_cnt;
u32 alloc_rx_buff_failed;
u32 rx_dma_failed;
u32 tx_dma_failed;
};
/* HW maintains a large list of counters */