From 644276db5d707eba7dd89cc8550b3639dbd29f75 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Wed, 25 Sep 2024 23:15:58 +0200 Subject: [PATCH] hw/net/xilinx_ethlite: Make device endianness configurable MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Replace the DEVICE_NATIVE_ENDIAN MemoryRegionOps by a pair of DEVICE_LITTLE_ENDIAN / DEVICE_BIG_ENDIAN. Add the "endianness" property to select the device endianness. This property is unspecified by default, and machines need to set it explicitly. Set the proper endianness for each machine using the device. Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Thomas Huth Reviewed-by: Richard Henderson Message-Id: <20250213122217.62654-4-philmd@linaro.org> --- hw/microblaze/petalogix_s3adsp1800_mmu.c | 1 + hw/net/xilinx_ethlite.c | 29 +++++++++++++++++++----- hw/riscv/microblaze-v-generic.c | 1 + 3 files changed, 25 insertions(+), 6 deletions(-) diff --git a/hw/microblaze/petalogix_s3adsp1800_mmu.c b/hw/microblaze/petalogix_s3adsp1800_mmu.c index 15cabe1177..d419dc49a2 100644 --- a/hw/microblaze/petalogix_s3adsp1800_mmu.c +++ b/hw/microblaze/petalogix_s3adsp1800_mmu.c @@ -123,6 +123,7 @@ petalogix_s3adsp1800_init(MachineState *machine) sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, irq[TIMER_IRQ]); dev = qdev_new("xlnx.xps-ethernetlite"); + qdev_prop_set_enum(dev, "endianness", endianness); qemu_configure_nic_device(dev, true, NULL); qdev_prop_set_uint32(dev, "tx-ping-pong", 0); qdev_prop_set_uint32(dev, "rx-ping-pong", 0); diff --git a/hw/net/xilinx_ethlite.c b/hw/net/xilinx_ethlite.c index 14bf2b2e17..15d9b95aa8 100644 --- a/hw/net/xilinx_ethlite.c +++ b/hw/net/xilinx_ethlite.c @@ -34,6 +34,7 @@ #include "hw/sysbus.h" #include "hw/irq.h" #include "hw/qdev-properties.h" +#include "hw/qdev-properties-system.h" #include "hw/misc/unimp.h" #include "net/net.h" #include "trace.h" @@ -85,6 +86,7 @@ struct XlnxXpsEthLite { SysBusDevice parent_obj; + EndianMode model_endianness; MemoryRegion container; qemu_irq irq; NICState *nic; @@ -183,10 +185,10 @@ static void port_tx_write(void *opaque, hwaddr addr, uint64_t value, } } -static const MemoryRegionOps eth_porttx_ops = { +static const MemoryRegionOps eth_porttx_ops[2] = { + [0 ... 1] = { .read = port_tx_read, .write = port_tx_write, - .endianness = DEVICE_NATIVE_ENDIAN, .impl = { .min_access_size = 4, .max_access_size = 4, @@ -195,6 +197,9 @@ static const MemoryRegionOps eth_porttx_ops = { .min_access_size = 4, .max_access_size = 4, }, + }, + [0].endianness = DEVICE_LITTLE_ENDIAN, + [1].endianness = DEVICE_BIG_ENDIAN, }; static uint64_t port_rx_read(void *opaque, hwaddr addr, unsigned int size) @@ -232,10 +237,10 @@ static void port_rx_write(void *opaque, hwaddr addr, uint64_t value, } } -static const MemoryRegionOps eth_portrx_ops = { +static const MemoryRegionOps eth_portrx_ops[2] = { + [0 ... 1] = { .read = port_rx_read, .write = port_rx_write, - .endianness = DEVICE_NATIVE_ENDIAN, .impl = { .min_access_size = 4, .max_access_size = 4, @@ -244,6 +249,9 @@ static const MemoryRegionOps eth_portrx_ops = { .min_access_size = 4, .max_access_size = 4, }, + }, + [0].endianness = DEVICE_LITTLE_ENDIAN, + [1].endianness = DEVICE_BIG_ENDIAN, }; static bool eth_can_rx(NetClientState *nc) @@ -300,6 +308,14 @@ static NetClientInfo net_xilinx_ethlite_info = { static void xilinx_ethlite_realize(DeviceState *dev, Error **errp) { XlnxXpsEthLite *s = XILINX_ETHLITE(dev); + unsigned ops_index; + + if (s->model_endianness == ENDIAN_MODE_UNSPECIFIED) { + error_setg(errp, TYPE_XILINX_ETHLITE " property 'endianness'" + " must be set to 'big' or 'little'"); + return; + } + ops_index = s->model_endianness == ENDIAN_MODE_BIG ? 1 : 0; memory_region_init(&s->container, OBJECT(dev), "xlnx.xps-ethernetlite", 0x2000); @@ -328,7 +344,7 @@ static void xilinx_ethlite_realize(DeviceState *dev, Error **errp) BUFSZ_MAX, &error_abort); memory_region_add_subregion(&s->container, 0x0800 * i, &s->port[i].txbuf); memory_region_init_io(&s->port[i].txio, OBJECT(dev), - ð_porttx_ops, s, + ð_porttx_ops[ops_index], s, i ? "ethlite.tx[1]io" : "ethlite.tx[0]io", 4 * TX_MAX); memory_region_add_subregion(&s->container, i ? A_TX_BASE1 : A_TX_BASE0, @@ -340,7 +356,7 @@ static void xilinx_ethlite_realize(DeviceState *dev, Error **errp) memory_region_add_subregion(&s->container, 0x1000 + 0x0800 * i, &s->port[i].rxbuf); memory_region_init_io(&s->port[i].rxio, OBJECT(dev), - ð_portrx_ops, s, + ð_portrx_ops[ops_index], s, i ? "ethlite.rx[1]io" : "ethlite.rx[0]io", 4 * RX_MAX); memory_region_add_subregion(&s->container, i ? A_RX_BASE1 : A_RX_BASE0, @@ -363,6 +379,7 @@ static void xilinx_ethlite_init(Object *obj) } static const Property xilinx_ethlite_properties[] = { + DEFINE_PROP_ENDIAN_NODEFAULT("endianness", XlnxXpsEthLite, model_endianness), DEFINE_PROP_UINT32("tx-ping-pong", XlnxXpsEthLite, c_tx_pingpong, 1), DEFINE_PROP_UINT32("rx-ping-pong", XlnxXpsEthLite, c_rx_pingpong, 1), DEFINE_NIC_PROPERTIES(XlnxXpsEthLite, conf), diff --git a/hw/riscv/microblaze-v-generic.c b/hw/riscv/microblaze-v-generic.c index ebdd461ae9..a21fdfbe6d 100644 --- a/hw/riscv/microblaze-v-generic.c +++ b/hw/riscv/microblaze-v-generic.c @@ -120,6 +120,7 @@ static void mb_v_generic_init(MachineState *machine) /* Emaclite */ dev = qdev_new("xlnx.xps-ethernetlite"); + qdev_prop_set_enum(dev, "endianness", ENDIAN_MODE_LITTLE); qemu_configure_nic_device(dev, true, NULL); qdev_prop_set_uint32(dev, "tx-ping-pong", 0); qdev_prop_set_uint32(dev, "rx-ping-pong", 0); -- 2.30.2