diff options
| author | Giuseppe CAVALLARO | 2012-11-26 00:10:42 +0100 |
|---|---|---|
| committer | David S. Miller | 2012-11-26 23:22:10 +0100 |
| commit | 9125cdd1be1199588f71c99e76e32bcda0b7d847 (patch) | |
| tree | 52fe0ed58cc7522324399f9a3e23fb81bdff6d7e /drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c | |
| parent | stmmac: remove dead code for STMMAC_TIMER support (diff) | |
| download | kernel-qcow2-linux-9125cdd1be1199588f71c99e76e32bcda0b7d847.tar.gz kernel-qcow2-linux-9125cdd1be1199588f71c99e76e32bcda0b7d847.tar.xz kernel-qcow2-linux-9125cdd1be1199588f71c99e76e32bcda0b7d847.zip | |
stmmac: add the initial tx coalesce schema
This patch adds a new schema used for mitigating the
number of transmit interrupts.
It is based on a SW timer and a threshold value.
The timer is used to periodically call the stmmac_tx_clean
function; the threshold is used for setting the IC (Interrupt
on Completion bit). The ISR will then invoke the poll method.
Also the patch improves some ethtool stat fields.
V2: review the logic to manage the IC bit in the TDESC
that was bugged because it didn't take care about the
fragments. Also fix the tx_count_frames that has not to be
limited to TX DMA ring. Thanks to Ben Hutchings.
V3: removed the spin_lock irqsave/restore as D. Miller suggested.
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c index 76fd61aa005f..15cb6ee6ee41 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c @@ -90,10 +90,12 @@ static const struct stmmac_stats stmmac_gstrings_stats[] = { STMMAC_STAT(threshold), STMMAC_STAT(tx_pkt_n), STMMAC_STAT(rx_pkt_n), - STMMAC_STAT(poll_n), - STMMAC_STAT(sched_timer_n), - STMMAC_STAT(normal_irq_n), STMMAC_STAT(normal_irq_n), + STMMAC_STAT(rx_normal_irq_n), + STMMAC_STAT(napi_poll), + STMMAC_STAT(tx_normal_irq_n), + STMMAC_STAT(tx_clean), + STMMAC_STAT(tx_reset_ic_bit), STMMAC_STAT(mmc_tx_irq_n), STMMAC_STAT(mmc_rx_irq_n), STMMAC_STAT(mmc_rx_csum_offload_irq_n), |