net: systemport: Track per TX ring statistics

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bcm_sysport_tx_reclaim_one() is currently summing TX bytes/packets in a
way that is not SMP friendly, mutliples CPUs could run
bcm_sysport_tx_reclaim_one() independently and still update
stats->tx_bytes and stats->tx_packets, cloberring the other CPUs
statistics.

Fix this by tracking per TX rings the number of bytes, packets,
dropped and errors statistics, and provide a bcm_sysport_get_nstats()
function which aggregates everything and returns a consistent output.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Florian Fainelli 2017-03-23 10:36:46 -07:00 • committed by David S. Miller

parent 12459cbd98

commit 30defeb2fb

2 changed files with 63 additions and 7 deletions

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65

drivers/net/ethernet/broadcom/bcmsysport.c

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5

drivers/net/ethernet/broadcom/bcmsysport.h

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