Hi, The Aspeed SoCs AST2400 and AST2500 have two FTGMAC100 ethernet controllers. This series proposes a model for this device and a way to customize the bit definitions which are slightly different from the Faraday definitions.
The last patch adds a fake NC-SI (Network Controller Sideband Interface) backend to pretend a NIC is being managed. This is only usable with the slirp stack for the moment. The model has been tested on the 'palmetto', 'romulus' and 'ast2500-evb' machines using different implementations of the Linux driver and with U-Boot. It has been stressed with iperf. The full patchset is available here, based on QEMU v2.9.0-rc4 : https://github.com/legoater/qemu/commits/aspeed To test, grab a palmetto or a romulus BMC firmware image : https://openpower.xyz/job/openbmc-build/distro=ubuntu,target=palmetto/lastSuccessfulBuild/artifact/images/palmetto/flash-palmetto https://openpower.xyz/job/openbmc-build/distro=ubuntu,target=romulus/lastSuccessfulBuild/artifact/images/romulus/flash-romulus and start the machines with : qemu-system-arm -m 512 -M romulus-bmc -drive file=flash-romulus,format=raw,if=mtd -nographic qemu-system-arm -m 512 -M palmetto-bmc -drive file=flash-palmetto,format=raw,if=mtd -nographic the fake NC-SI NIC should come up : ftgmac100 1e660000.ethernet eth0: NCSI interface up and to log, use credentials root/0penBmc Thanks, C. Changes since v2: - rebased on QEMU v2.9.0-rc4 - modified the 'ncsi-pkt.h' file to add its location under the Linux tree - removed useless zeroing of the 'reserved' fields - introduced a ncsi_rsp_handlers array to hold the payload size and a specific handler routine for each command - fixed the output size of the frame to match the command payload size Changes since v1: - removed TODO comments and used LOG_UNIMP in the read/write ops - used camelcase for struct names and typedefs. - removed the useless struct definitions for ring descriptors and the alignment pragma - introduced a frame buffer at the machine level to reduce stack usage in the tx path. - introduced symbolic constants for PHY values. - introduced rtl8211e PHY chip specific registers - removed qemu_set_irq() in reset path - checked for dma_memory_read() errors. Also for write but that was less important as the descriptor is first read so it should be valid for the write. - removed the irq state - removed the weird hack to catch a first valid descriptor. - fixed the read of the mac address Cédric Le Goater (5): hw/net: add MII definitions net: add FTGMAC100 support net/ftgmac100: add a 'aspeed' property aspeed: add a FTGMAC100 nic slirp: add a fake NC-SI backend default-configs/arm-softmmu.mak | 1 + hw/arm/aspeed_soc.c | 21 + hw/net/Makefile.objs | 1 + hw/net/ftgmac100.c | 1016 +++++++++++++++++++++++++++++++++++++++ include/hw/arm/aspeed_soc.h | 2 + include/hw/net/ftgmac100.h | 64 +++ include/hw/net/mii.h | 71 ++- include/net/eth.h | 1 + slirp/Makefile.objs | 2 +- slirp/ncsi-pkt.h | 419 ++++++++++++++++ slirp/ncsi.c | 130 +++++ slirp/slirp.c | 4 + slirp/slirp.h | 3 + 13 files changed, 1716 insertions(+), 19 deletions(-) create mode 100644 hw/net/ftgmac100.c create mode 100644 include/hw/net/ftgmac100.h create mode 100644 slirp/ncsi-pkt.h create mode 100644 slirp/ncsi.c -- 2.7.4
