diff options
Diffstat (limited to 'drivers/net/ethernet/freescale/sdk_dpaa/Kconfig')
| -rw-r--r-- | drivers/net/ethernet/freescale/sdk_dpaa/Kconfig | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/drivers/net/ethernet/freescale/sdk_dpaa/Kconfig b/drivers/net/ethernet/freescale/sdk_dpaa/Kconfig new file mode 100644 index 0000000..92118b7 --- /dev/null +++ b/drivers/net/ethernet/freescale/sdk_dpaa/Kconfig @@ -0,0 +1,173 @@ +menuconfig FSL_SDK_DPAA_ETH + tristate "DPAA Ethernet" + depends on (FSL_SOC || ARM64 || ARM) && FSL_SDK_BMAN && FSL_SDK_QMAN && FSL_SDK_FMAN && !FSL_DPAA_ETH + select PHYLIB + help + Data Path Acceleration Architecture Ethernet driver, + supporting the Freescale QorIQ chips. + Depends on Freescale Buffer Manager and Queue Manager + driver and Frame Manager Driver. + +if FSL_SDK_DPAA_ETH + +config FSL_DPAA_HOOKS + bool "DPAA Ethernet driver hooks" + +config FSL_DPAA_CEETM + bool "DPAA CEETM QoS" + depends on NET_SCHED + default n + help + Enable QoS offloading support through the CEETM hardware block. + +config FSL_DPAA_OFFLINE_PORTS + bool "Offline Ports support" + depends on FSL_SDK_DPAA_ETH + default y + help + The Offline Parsing / Host Command ports (short: OH ports, of Offline ports) provide + most of the functionality of the regular, online ports, except they receive their + frames from a core or an accelerator on the SoC, via QMan frame queues, + rather than directly from the network. + Offline ports are configured via PCD (Parse-Classify-Distribute) schemes, just like + any online FMan port. They deliver the processed frames to frame queues, according + to the applied PCD configurations. + + Choosing this feature will not impact the functionality and/or performance of the system, + so it is safe to have it. + +config FSL_DPAA_ADVANCED_DRIVERS + bool "Advanced DPAA Ethernet drivers" + depends on FSL_SDK_DPAA_ETH + default y + help + Besides the standard DPAA Ethernet driver the DPAA Proxy initialization driver + is needed to support advanced scenarios. Select this to also build the advanced + drivers. + +config FSL_DPAA_ETH_JUMBO_FRAME + bool "Optimize for jumbo frames" + default n + help + Optimize the DPAA Ethernet driver throughput for large frames + termination traffic (e.g. 4K and above). + NOTE: This option can only be used if FSL_FM_MAX_FRAME_SIZE + is set to 9600 bytes. + Using this option in combination with small frames increases + significantly the driver's memory footprint and may even deplete + the system memory. Also, the skb truesize is altered and messages + from the stack that warn against this are bypassed. + This option is not available on LS1043. + +config FSL_DPAA_TS + bool "Linux compliant timestamping" + depends on FSL_SDK_DPAA_ETH + default n + help + Enable Linux API compliant timestamping support. + +config FSL_DPAA_1588 + bool "IEEE 1588-compliant timestamping" + depends on FSL_SDK_DPAA_ETH + select FSL_DPAA_TS + default n + help + Enable IEEE1588 support code. + +config FSL_DPAA_ETH_USE_NDO_SELECT_QUEUE + bool "Use driver's Tx queue selection mechanism" + default y + depends on FSL_SDK_DPAA_ETH + help + The DPAA-Ethernet driver defines a ndo_select_queue() callback for optimal selection + of the egress FQ. That will override the XPS support for this netdevice. + If for whatever reason you want to be in control of the egress FQ-to-CPU selection and mapping, + or simply don't want to use the driver's ndo_select_queue() callback, then unselect this + and use the standard XPS support instead. + +config FSL_DPAA_ETH_MAX_BUF_COUNT + int "Maximum nuber of buffers in private bpool" + depends on FSL_SDK_DPAA_ETH + range 64 2048 + default "128" + help + The maximum number of buffers to be by default allocated in the DPAA-Ethernet private port's + buffer pool. One needn't normally modify this, as it has probably been tuned for performance + already. This cannot be lower than DPAA_ETH_REFILL_THRESHOLD. + +config FSL_DPAA_ETH_REFILL_THRESHOLD + int "Private bpool refill threshold" + depends on FSL_SDK_DPAA_ETH + range 32 FSL_DPAA_ETH_MAX_BUF_COUNT + default "80" + help + The DPAA-Ethernet driver will start replenishing buffer pools whose count + falls below this threshold. This must be related to DPAA_ETH_MAX_BUF_COUNT. One needn't normally + modify this value unless one has very specific performance reasons. + +config FSL_DPAA_CS_THRESHOLD_1G + hex "Egress congestion threshold on 1G ports" + depends on FSL_SDK_DPAA_ETH + range 0x1000 0x10000000 + default "0x06000000" + help + The size in bytes of the egress Congestion State notification threshold on 1G ports. + The 1G dTSECs can quite easily be flooded by cores doing Tx in a tight loop + (e.g. by sending UDP datagrams at "while(1) speed"), + and the larger the frame size, the more acute the problem. + So we have to find a balance between these factors: + - avoiding the device staying congested for a prolonged time (risking + the netdev watchdog to fire - see also the tx_timeout module param); + - affecting performance of protocols such as TCP, which otherwise + behave well under the congestion notification mechanism; + - preventing the Tx cores from tightly-looping (as if the congestion + threshold was too low to be effective); + - running out of memory if the CS threshold is set too high. + +config FSL_DPAA_CS_THRESHOLD_10G + hex "Egress congestion threshold on 10G ports" + depends on FSL_SDK_DPAA_ETH + range 0x1000 0x20000000 + default "0x10000000" + help + The size in bytes of the egress Congestion State notification threshold on 10G ports. + +config FSL_DPAA_INGRESS_CS_THRESHOLD + hex "Ingress congestion threshold on FMan ports" + depends on FSL_SDK_DPAA_ETH + default "0x10000000" + help + The size in bytes of the ingress tail-drop threshold on FMan ports. + Traffic piling up above this value will be rejected by QMan and discarded by FMan. + +config FSL_DPAA_ETH_DEBUGFS + bool "DPAA Ethernet debugfs interface" + depends on DEBUG_FS && FSL_SDK_DPAA_ETH + default y + help + This option compiles debugfs code for the DPAA Ethernet driver. + +config FSL_DPAA_ETH_DEBUG + bool "DPAA Ethernet Debug Support" + depends on FSL_SDK_DPAA_ETH + default n + help + This option compiles debug code for the DPAA Ethernet driver. + +config FSL_DPAA_DBG_LOOP + bool "DPAA Ethernet Debug loopback" + depends on FSL_DPAA_ETH_DEBUGFS && FSL_DPAA_ETH_USE_NDO_SELECT_QUEUE + default n + help + This option allows to divert all received traffic on a certain interface A towards a + selected interface B. This option is used to benchmark the HW + Ethernet driver in + isolation from the Linux networking stack. The loops are controlled by debugfs entries, + one for each interface. By default all loops are disabled (target value is -1). I.e. to + change the loop setting for interface 4 and divert all received traffic to interface 5 + write Tx interface number in the receive interface debugfs file: + # cat /sys/kernel/debug/powerpc/fsl_dpa/eth4_loop + 4->-1 + # echo 5 > /sys/kernel/debug/powerpc/fsl_dpa/eth4_loop + # cat /sys/kernel/debug/powerpc/fsl_dpa/eth4_loop + 4->5 +endif # FSL_SDK_DPAA_ETH |