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authorAlexandre Belloni <alexandre.belloni@bootlin.com>2018-05-14 23:04:57 +0300
committerDavid S. Miller <davem@davemloft.net>2018-05-15 23:41:15 +0300
commita556c76adc052c979ef9e80f0cd3fa1379ff4943 (patch)
treeea370c508b9f5da654abc40dd62c2bdfe7a217fa /drivers/net/ethernet/mscc/Kconfig
parent44b801e0f0970cd8ce124cb0e292108a455fac30 (diff)
downloadlinux-a556c76adc052c979ef9e80f0cd3fa1379ff4943.tar.xz
net: mscc: Add initial Ocelot switch support
Add a driver for Microsemi Ocelot Ethernet switch support. This makes two modules: mscc_ocelot_common handles all the common features that doesn't depend on how the switch is integrated in the SoC. Currently, it handles offloading bridging to the hardware. ocelot_io.c handles register accesses. This is unfortunately needed because the register layout is packed and then depends on the number of ports available on the switch. The register definition files are automatically generated. ocelot_board handles the switch integration on the SoC and on the board. Frame injection and extraction to/from the CPU port is currently done using register accesses which is quite slow. DMA is possible but the port is not able to absorb the whole switch bandwidth. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mscc/Kconfig')
-rw-r--r--drivers/net/ethernet/mscc/Kconfig30
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mscc/Kconfig b/drivers/net/ethernet/mscc/Kconfig
new file mode 100644
index 000000000000..36c84625d54e
--- /dev/null
+++ b/drivers/net/ethernet/mscc/Kconfig
@@ -0,0 +1,30 @@
+# SPDX-License-Identifier: (GPL-2.0 OR MIT)
+config NET_VENDOR_MICROSEMI
+ bool "Microsemi devices"
+ default y
+ help
+ If you have a network (Ethernet) card belonging to this class, say Y.
+
+ Note that the answer to this question doesn't directly affect the
+ kernel: saying N will just cause the configurator to skip all
+ the questions about Microsemi devices.
+
+if NET_VENDOR_MICROSEMI
+
+config MSCC_OCELOT_SWITCH
+ tristate "Ocelot switch driver"
+ depends on NET_SWITCHDEV
+ depends on HAS_IOMEM
+ select PHYLIB
+ select REGMAP_MMIO
+ help
+ This driver supports the Ocelot network switch device.
+
+config MSCC_OCELOT_SWITCH_OCELOT
+ tristate "Ocelot switch driver on Ocelot"
+ depends on MSCC_OCELOT_SWITCH
+ help
+ This driver supports the Ocelot network switch device as present on
+ the Ocelot SoCs.
+
+endif # NET_VENDOR_MICROSEMI