On Mon, Jan 25, 2016 at 12:52:55AM +0900, Yoshihiro Kaneko wrote:

From: Kazuya Mizuguchi <redacted>

This patch supports the following interrupts.

- One interrupt for multiple (descriptor, error, management)
- One interrupt for emac
- Four interrupts for dma queue (best effort rx/tx, network control rx/tx)

This patch improve efficiency of the interrupt handler by adding the
interrupt handler corresponding to each interrupt source described
above. Additionally, it reduces the number of times of the access to
EthernetAVB IF.

Signed-off-by: Kazuya Mizuguchi <redacted>
Signed-off-by: Yoshihiro Kaneko <redacted>

I have tested this patch and the result seems positive.
Please let me know if any more/different testing would help.

My test was to examine /proc/interrupts after booting a Salvator-X board
using NFS root. The test used net-next merged with v4.5-rc1 (for
r8a7795/Salvator-X support). I then applied this patch.

Without this patch:
# grep eth /proc/interrupts
 74:      13002          0          0          0     GIC-0  93 Level     eth0
 76:          3          0          0          0     GIC-0  95 Level     eth0

With this patch:

# grep eth /proc/interrupts
 52:       8744          0          0          0     GIC-0  71 Level     eth0:ch0:rx_be
 53:          0          0          0          0     GIC-0  72 Level     eth0:ch1:rx_nc
 70:       4277          0          0          0     GIC-0  89 Level     eth0:ch18:tx_be
 71:          0          0          0          0     GIC-0  90 Level     eth0:ch19:tx_nc
 74:          0          0          0          0     GIC-0  93 Level     eth0:ch22:multi
 76:          3          0          0          0     GIC-0  95 Level     eth0:ch24:emac

Please feel free to add:

Tested-by: Simon Horman <redacted>