diff options
Diffstat (limited to 'drivers/net/ethernet/freescale/fman/Kconfig')
-rw-r--r-- | drivers/net/ethernet/freescale/fman/Kconfig | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/drivers/net/ethernet/freescale/fman/Kconfig b/drivers/net/ethernet/freescale/fman/Kconfig new file mode 100644 index 0000000..e640465 --- /dev/null +++ b/drivers/net/ethernet/freescale/fman/Kconfig @@ -0,0 +1,112 @@ +menu "Frame Manager support" + +menuconfig FSL_FMAN + bool "Freescale Frame Manager (datapath) support" + # depends on PPC_E500MC + default y + ---help--- + If unsure, say Y. + +if FSL_FMAN + +config FSL_FMAN_TEST + bool "FMan test module" + default n + ---help--- + This option compiles test code for FMan. + +menu "FMAN Processor support" +choice + depends on FSL_FMAN + prompt "Processor Type" + +config FMAN_P3040_P4080_P5020 + bool "P3040 P4080 5020" + +config FMAN_P1023 + bool "P1023" + +config FMAN_T4240 + bool "T4240" + +endchoice +endmenu + +config FMAN_RESOURCE_ALLOCATION_ALGORITHM + bool "Enable FMan dynamic resource allocation algorithm" + default n + ---help--- + Enables algorithm for dynamic resource allocation + +config FMAN_DISABLE_OH_TO_REUSE_RESOURCES + depends on FMAN_RESOURCE_ALLOCATION_ALGORITHM + bool "Disable offline parsing ports to reuse resources" + default n + ---help--- + Redistributes FMan OH's resources to all other ports, + thus enabling other configurations. + +config FMAN_MIB_CNT_OVF_IRQ_EN + bool "Enable the dTSEC MIB counters overflow interrupt" + default n + ---help--- + Enable the dTSEC MIB counters overflow interrupt to get + accurate MIB counters values. Enabled it compensates + for the counters overflow but reduces performance and + triggers error messages in HV setups. + + +config FSL_FM_MAX_FRAME_SIZE + int "Maximum L2 frame size" + depends on FSL_FMAN + range 64 9600 + default "1522" + help + Configure this in relation to the maximum possible MTU of your + network configuration. In particular, one would need to + increase this value in order to use jumbo frames. + FSL_FM_MAX_FRAME_SIZE must accomodate the Ethernet FCS (4 bytes) + and one ETH+VLAN header (18 bytes), to a total of 22 bytes in + excess of the desired L3 MTU. + + Note that having too large a FSL_FM_MAX_FRAME_SIZE (much larger + than the actual MTU) may lead to buffer exhaustion, especially + in the case of badly fragmented datagrams on the Rx path. + Conversely, having a FSL_FM_MAX_FRAME_SIZE smaller than the actual + MTU will lead to frames being dropped. + + This can be overridden by specifying "fsl_fm_max_frm" in + the kernel bootargs: + * in Hypervisor-based scenarios, by adding a "chosen" node + with the "bootargs" property specifying + "fsl_fm_max_frm=<YourValue>"; + * in non-Hypervisor-based scenarios, via u-boot's env, by + modifying the "bootargs" env variable. + +config FSL_FM_RX_EXTRA_HEADROOM + int "Add extra headroom at beginning of data buffers" + depends on FSL_FMAN + range 0 384 + default "64" + help + Configure this to tell the Frame Manager to reserve some extra + space at the beginning of a data buffer on the receive path, + before Internal Context fields are copied. This is in addition + to the private data area already reserved for driver internal + use. The option does not affect in any way the layout of + transmitted buffers. You may be required to enable the config + option FMAN_RESOURCE_ALLOCATION_ALGORITHM and also + FMAN_DISABLE_OH_TO_REUSE_RESOURCES to have enough resources + when using this option and also supporting jumbo frames. + + This setting can be overridden by specifying + "fsl_fm_rx_extra_headroom" in the kernel bootargs: + * in Hypervisor-based scenarios, by adding a "chosen" node + with the "bootargs" property specifying + "fsl_fm_rx_extra_headroom=<YourValue>"; + * in non-Hypervisor-based scenarios, via u-boot's env, by + modifying the "bootargs" env variable. + +endif # FSL_FMAN + +endmenu |