Searched hist:ff89ac704e2c92edfdb636070a7e0b91c1e4ec2d (Results 1 – 4 of 4) sorted by relevance
| /openbmc/linux/drivers/net/ethernet/microchip/lan966x/ |
| H A D | lan966x_fdma.c | diff ff89ac704e2c92edfdb636070a7e0b91c1e4ec2d Fri Mar 17 10:27:12 CDT 2023 Horatiu Vultur <horatiu.vultur@microchip.com> net: lan966x: Don't read RX timestamp if not needed
Whenever a frame was received to the CPU, the HW is timestamping the
frame. In the IFH(Inter Frame Header) it is found the nanosecond part
of the timestamps the SW is required to read from HW the second part.
But reading the second part it seems to be a expensive operations, so
so change this such to read the second part only when rx filter is
enabled.
Doing this change gives the RX a performance boost of ~70mbit.
before:
[ 5] 0.00-10.01 sec 546 MBytes 457 Mbits/sec 0 sender
now:
[ 5] 0.00-10.01 sec 652 MBytes 530 Mbits/sec 0 sender
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| H A D | lan966x_ptp.c | diff ff89ac704e2c92edfdb636070a7e0b91c1e4ec2d Fri Mar 17 10:27:12 CDT 2023 Horatiu Vultur <horatiu.vultur@microchip.com> net: lan966x: Don't read RX timestamp if not needed
Whenever a frame was received to the CPU, the HW is timestamping the
frame. In the IFH(Inter Frame Header) it is found the nanosecond part
of the timestamps the SW is required to read from HW the second part.
But reading the second part it seems to be a expensive operations, so
so change this such to read the second part only when rx filter is
enabled.
Doing this change gives the RX a performance boost of ~70mbit.
before:
[ 5] 0.00-10.01 sec 546 MBytes 457 Mbits/sec 0 sender
now:
[ 5] 0.00-10.01 sec 652 MBytes 530 Mbits/sec 0 sender
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| H A D | lan966x_main.h | diff ff89ac704e2c92edfdb636070a7e0b91c1e4ec2d Fri Mar 17 10:27:12 CDT 2023 Horatiu Vultur <horatiu.vultur@microchip.com> net: lan966x: Don't read RX timestamp if not needed
Whenever a frame was received to the CPU, the HW is timestamping the
frame. In the IFH(Inter Frame Header) it is found the nanosecond part
of the timestamps the SW is required to read from HW the second part.
But reading the second part it seems to be a expensive operations, so
so change this such to read the second part only when rx filter is
enabled.
Doing this change gives the RX a performance boost of ~70mbit.
before:
[ 5] 0.00-10.01 sec 546 MBytes 457 Mbits/sec 0 sender
now:
[ 5] 0.00-10.01 sec 652 MBytes 530 Mbits/sec 0 sender
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| H A D | lan966x_main.c | diff ff89ac704e2c92edfdb636070a7e0b91c1e4ec2d Fri Mar 17 10:27:12 CDT 2023 Horatiu Vultur <horatiu.vultur@microchip.com> net: lan966x: Don't read RX timestamp if not needed
Whenever a frame was received to the CPU, the HW is timestamping the
frame. In the IFH(Inter Frame Header) it is found the nanosecond part
of the timestamps the SW is required to read from HW the second part.
But reading the second part it seems to be a expensive operations, so
so change this such to read the second part only when rx filter is
enabled.
Doing this change gives the RX a performance boost of ~70mbit.
before:
[ 5] 0.00-10.01 sec 546 MBytes 457 Mbits/sec 0 sender
now:
[ 5] 0.00-10.01 sec 652 MBytes 530 Mbits/sec 0 sender
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|