This is a trivial patch to harmonize the coding style on
hw/etraxfs_eth.c. This is in preparation to split off the bitbang mdio
code into a separate file.
Cc: Peter Maydell <peter.mayd...@linaro.org>
Cc: Paul Brook <p...@codesourcery.com>
Cc: Edgar E. Iglesias <edgar.igles...@gmail.com>
Cc: Anthony Liguori <aligu...@us.ibm.com>
Cc: Andreas Färber <afaer...@suse.de>
Signed-off-by: Grant Likely <grant.lik...@secretlab.ca>
---
hw/etraxfs_eth.c | 922 +++++++++++++++++++++++++++---------------------------
1 file changed, 466 insertions(+), 456 deletions(-)
diff --git a/hw/etraxfs_eth.c b/hw/etraxfs_eth.c
index ec23fa6..0b474c0 100644
--- a/hw/etraxfs_eth.c
+++ b/hw/etraxfs_eth.c
@@ -35,582 +35,592 @@
#define ADVERTISE_100HALF 0x0080 /* Try for 100mbps half-duplex */
#define ADVERTISE_100FULL 0x0100 /* Try for 100mbps full-duplex */
-/*
- * The MDIO extensions in the TDK PHY model were reversed engineered from the
+/*
+ * The MDIO extensions in the TDK PHY model were reversed engineered from the
* linux driver (PHYID and Diagnostics reg).
* TODO: Add friendly names for the register nums.
*/
struct qemu_phy
{
- uint32_t regs[32];
+ uint32_t regs[32];
- int link;
+ int link;
- unsigned int (*read)(struct qemu_phy *phy, unsigned int req);
- void (*write)(struct qemu_phy *phy, unsigned int req,
- unsigned int data);
+ unsigned int (*read)(struct qemu_phy *phy, unsigned int req);
+ void (*write)(struct qemu_phy *phy, unsigned int req, unsigned int data);
};
static unsigned int tdk_read(struct qemu_phy *phy, unsigned int req)
{
- int regnum;
- unsigned r = 0;
-
- regnum = req & 0x1f;
-
- switch (regnum) {
- case 1:
- if (!phy->link)
- break;
- /* MR1. */
- /* Speeds and modes. */
- r |= (1 << 13) | (1 << 14);
- r |= (1 << 11) | (1 << 12);
- r |= (1 << 5); /* Autoneg complete. */
- r |= (1 << 3); /* Autoneg able. */
- r |= (1 << 2); /* link. */
- break;
- case 5:
- /* Link partner ability.
- We are kind; always agree with whatever best mode
- the guest advertises. */
- r = 1 << 14; /* Success. */
- /* Copy advertised modes. */
- r |= phy->regs[4] & (15 << 5);
- /* Autoneg support. */
- r |= 1;
- break;
- case 18:
- {
- /* Diagnostics reg. */
- int duplex = 0;
- int speed_100 = 0;
-
- if (!phy->link)
- break;
-
- /* Are we advertising 100 half or 100 duplex ? */
- speed_100 = !!(phy->regs[4] & ADVERTISE_100HALF);
- speed_100 |= !!(phy->regs[4] & ADVERTISE_100FULL);
-
- /* Are we advertising 10 duplex or 100 duplex ? */
- duplex = !!(phy->regs[4] & ADVERTISE_100FULL);
- duplex |= !!(phy->regs[4] & ADVERTISE_10FULL);
- r = (speed_100 << 10) | (duplex << 11);
- }
- break;
-
- default:
- r = phy->regs[regnum];
- break;
- }
- D(printf("\n%s %x = reg[%d]\n", __func__, r, regnum));
- return r;
+ int regnum;
+ unsigned r = 0;
+
+ regnum = req & 0x1f;
+
+ switch (regnum) {
+ case 1:
+ if (!phy->link) {
+ break;
+ }
+ /* MR1. */
+ /* Speeds and modes. */
+ r |= (1 << 13) | (1 << 14);
+ r |= (1 << 11) | (1 << 12);
+ r |= (1 << 5); /* Autoneg complete. */
+ r |= (1 << 3); /* Autoneg able. */
+ r |= (1 << 2); /* link. */
+ break;
+ case 5:
+ /* Link partner ability.
+ We are kind; always agree with whatever best mode
+ the guest advertises. */
+ r = 1 << 14; /* Success. */
+ /* Copy advertised modes. */
+ r |= phy->regs[4] & (15 << 5);
+ /* Autoneg support. */
+ r |= 1;
+ break;
+ case 18:
+ {
+ /* Diagnostics reg. */
+ int duplex = 0;
+ int speed_100 = 0;
+
+ if (!phy->link) {
+ break;
+ }
+
+ /* Are we advertising 100 half or 100 duplex ? */
+ speed_100 = !!(phy->regs[4] & ADVERTISE_100HALF);
+ speed_100 |= !!(phy->regs[4] & ADVERTISE_100FULL);
+
+ /* Are we advertising 10 duplex or 100 duplex ? */
+ duplex = !!(phy->regs[4] & ADVERTISE_100FULL);
+ duplex |= !!(phy->regs[4] & ADVERTISE_10FULL);
+ r = (speed_100 << 10) | (duplex << 11);
+ }
+ break;
+
+ default:
+ r = phy->regs[regnum];
+ break;
+ }
+ D(printf("\n%s %x = reg[%d]\n", __func__, r, regnum));
+ return r;
}
-static void
+static void
tdk_write(struct qemu_phy *phy, unsigned int req, unsigned int data)
{
- int regnum;
-
- regnum = req & 0x1f;
- D(printf("%s reg[%d] = %x\n", __func__, regnum, data));
- switch (regnum) {
- default:
- phy->regs[regnum] = data;
- break;
- }
+ int regnum;
+
+ regnum = req & 0x1f;
+ D(printf("%s reg[%d] = %x\n", __func__, regnum, data));
+ switch (regnum) {
+ default:
+ phy->regs[regnum] = data;
+ break;
+ }
}
-static void
+static void
tdk_init(struct qemu_phy *phy)
{
- phy->regs[0] = 0x3100;
- /* PHY Id. */
- phy->regs[2] = 0x0300;
- phy->regs[3] = 0xe400;
- /* Autonegotiation advertisement reg. */
- phy->regs[4] = 0x01E1;
- phy->link = 1;
-
- phy->read = tdk_read;
- phy->write = tdk_write;
+ phy->regs[0] = 0x3100;
+ /* PHY Id. */
+ phy->regs[2] = 0x0300;
+ phy->regs[3] = 0xe400;
+ /* Autonegotiation advertisement reg. */
+ phy->regs[4] = 0x01E1;
+ phy->link = 1;
+
+ phy->read = tdk_read;
+ phy->write = tdk_write;
}
struct qemu_mdio
{
- /* bus. */
- int mdc;
- int mdio;
-
- /* decoder. */
- enum {
- PREAMBLE,
- SOF,
- OPC,
- ADDR,
- REQ,
- TURNAROUND,
- DATA
- } state;
- unsigned int drive;
-
- unsigned int cnt;
- unsigned int addr;
- unsigned int opc;
- unsigned int req;
- unsigned int data;
-
- struct qemu_phy *devs[32];
+ /* bus. */
+ int mdc;
+ int mdio;
+
+ /* decoder. */
+ enum {
+ PREAMBLE,
+ SOF,
+ OPC,
+ ADDR,
+ REQ,
+ TURNAROUND,
+ DATA
+ } state;
+ unsigned int drive;
+
+ unsigned int cnt;
+ unsigned int addr;
+ unsigned int opc;
+ unsigned int req;
+ unsigned int data;
+
+ struct qemu_phy *devs[32];
};
-static void
+static void
mdio_attach(struct qemu_mdio *bus, struct qemu_phy *phy, unsigned int addr)
{
- bus->devs[addr & 0x1f] = phy;
+ bus->devs[addr & 0x1f] = phy;
}
#ifdef USE_THIS_DEAD_CODE
-static void
+static void
mdio_detach(struct qemu_mdio *bus, struct qemu_phy *phy, unsigned int addr)
{
- bus->devs[addr & 0x1f] = NULL;
+ bus->devs[addr & 0x1f] = NULL;
}
#endif
static void mdio_read_req(struct qemu_mdio *bus)
{
- struct qemu_phy *phy;
-
- phy = bus->devs[bus->addr];
- if (phy && phy->read)
- bus->data = phy->read(phy, bus->req);
- else
- bus->data = 0xffff;
+ struct qemu_phy *phy;
+
+ phy = bus->devs[bus->addr];
+ if (phy && phy->read) {
+ bus->data = phy->read(phy, bus->req);
+ } else {
+ bus->data = 0xffff;
+ }
}
static void mdio_write_req(struct qemu_mdio *bus)
{
- struct qemu_phy *phy;
+ struct qemu_phy *phy;
- phy = bus->devs[bus->addr];
- if (phy && phy->write)
- phy->write(phy, bus->req, bus->data);
+ phy = bus->devs[bus->addr];
+ if (phy && phy->write) {
+ phy->write(phy, bus->req, bus->data);
+ }
}
static void mdio_cycle(struct qemu_mdio *bus)
{
- bus->cnt++;
+ bus->cnt++;
- D(printf("mdc=%d mdio=%d state=%d cnt=%d drv=%d\n",
- bus->mdc, bus->mdio, bus->state, bus->cnt, bus->drive));
+ D(printf("mdc=%d mdio=%d state=%d cnt=%d drv=%d\n",
+ bus->mdc, bus->mdio, bus->state, bus->cnt, bus->drive));
#if 0
- if (bus->mdc)
- printf("%d", bus->mdio);
+ if (bus->mdc) {
+ printf("%d", bus->mdio);
+ }
#endif
- switch (bus->state)
- {
- case PREAMBLE:
- if (bus->mdc) {
- if (bus->cnt >= (32 * 2) && !bus->mdio) {
- bus->cnt = 0;
- bus->state = SOF;
- bus->data = 0;
- }
- }
- break;
- case SOF:
- if (bus->mdc) {
- if (bus->mdio != 1)
- printf("WARNING: no SOF\n");
- if (bus->cnt == 1*2) {
- bus->cnt = 0;
- bus->opc = 0;
- bus->state = OPC;
- }
- }
- break;
- case OPC:
- if (bus->mdc) {
- bus->opc <<= 1;
- bus->opc |= bus->mdio & 1;
- if (bus->cnt == 2*2) {
- bus->cnt = 0;
- bus->addr = 0;
- bus->state = ADDR;
- }
- }
- break;
- case ADDR:
- if (bus->mdc) {
- bus->addr <<= 1;
- bus->addr |= bus->mdio & 1;
-
- if (bus->cnt == 5*2) {
- bus->cnt = 0;
- bus->req = 0;
- bus->state = REQ;
- }
- }
- break;
- case REQ:
- if (bus->mdc) {
- bus->req <<= 1;
- bus->req |= bus->mdio & 1;
- if (bus->cnt == 5*2) {
- bus->cnt = 0;
- bus->state = TURNAROUND;
- }
- }
- break;
- case TURNAROUND:
- if (bus->mdc && bus->cnt == 2*2) {
- bus->mdio = 0;
- bus->cnt = 0;
-
- if (bus->opc == 2) {
- bus->drive = 1;
- mdio_read_req(bus);
- bus->mdio = bus->data & 1;
- }
- bus->state = DATA;
- }
- break;
- case DATA:
- if (!bus->mdc) {
- if (bus->drive) {
- bus->mdio = !!(bus->data & (1 << 15));
- bus->data <<= 1;
- }
- } else {
- if (!bus->drive) {
- bus->data <<= 1;
- bus->data |= bus->mdio;
- }
- if (bus->cnt == 16 * 2) {
- bus->cnt = 0;
- bus->state = PREAMBLE;
- if (!bus->drive)
- mdio_write_req(bus);
- bus->drive = 0;
- }
- }
- break;
- default:
- break;
- }
+ switch (bus->state) {
+ case PREAMBLE:
+ if (bus->mdc) {
+ if (bus->cnt >= (32 * 2) && !bus->mdio) {
+ bus->cnt = 0;
+ bus->state = SOF;
+ bus->data = 0;
+ }
+ }
+ break;
+ case SOF:
+ if (bus->mdc) {
+ if (bus->mdio != 1) {
+ printf("WARNING: no SOF\n");
+ }
+ if (bus->cnt == 1*2) {
+ bus->cnt = 0;
+ bus->opc = 0;
+ bus->state = OPC;
+ }
+ }
+ break;
+ case OPC:
+ if (bus->mdc) {
+ bus->opc <<= 1;
+ bus->opc |= bus->mdio & 1;
+ if (bus->cnt == 2*2) {
+ bus->cnt = 0;
+ bus->addr = 0;
+ bus->state = ADDR;
+ }
+ }
+ break;
+ case ADDR:
+ if (bus->mdc) {
+ bus->addr <<= 1;
+ bus->addr |= bus->mdio & 1;
+
+ if (bus->cnt == 5*2) {
+ bus->cnt = 0;
+ bus->req = 0;
+ bus->state = REQ;
+ }
+ }
+ break;
+ case REQ:
+ if (bus->mdc) {
+ bus->req <<= 1;
+ bus->req |= bus->mdio & 1;
+ if (bus->cnt == 5*2) {
+ bus->cnt = 0;
+ bus->state = TURNAROUND;
+ }
+ }
+ break;
+ case TURNAROUND:
+ if (bus->mdc && bus->cnt == 2*2) {
+ bus->mdio = 0;
+ bus->cnt = 0;
+
+ if (bus->opc == 2) {
+ bus->drive = 1;
+ mdio_read_req(bus);
+ bus->mdio = bus->data & 1;
+ }
+ bus->state = DATA;
+ }
+ break;
+ case DATA:
+ if (!bus->mdc) {
+ if (bus->drive) {
+ bus->mdio = !!(bus->data & (1 << 15));
+ bus->data <<= 1;
+ }
+ } else {
+ if (!bus->drive) {
+ bus->data <<= 1;
+ bus->data |= bus->mdio;
+ }
+ if (bus->cnt == 16 * 2) {
+ bus->cnt = 0;
+ bus->state = PREAMBLE;
+ if (!bus->drive) {
+ mdio_write_req(bus);
+ }
+ bus->drive = 0;
+ }
+ }
+ break;
+ default:
+ break;
+ }
}
/* ETRAX-FS Ethernet MAC block starts here. */
-#define RW_MA0_LO 0x00
-#define RW_MA0_HI 0x01
-#define RW_MA1_LO 0x02
-#define RW_MA1_HI 0x03
-#define RW_GA_LO 0x04
-#define RW_GA_HI 0x05
-#define RW_GEN_CTRL 0x06
-#define RW_REC_CTRL 0x07
-#define RW_TR_CTRL 0x08
-#define RW_CLR_ERR 0x09
-#define RW_MGM_CTRL 0x0a
-#define R_STAT 0x0b
-#define FS_ETH_MAX_REGS 0x17
+#define RW_MA0_LO 0x00
+#define RW_MA0_HI 0x01
+#define RW_MA1_LO 0x02
+#define RW_MA1_HI 0x03
+#define RW_GA_LO 0x04
+#define RW_GA_HI 0x05
+#define RW_GEN_CTRL 0x06
+#define RW_REC_CTRL 0x07
+#define RW_TR_CTRL 0x08
+#define RW_CLR_ERR 0x09
+#define RW_MGM_CTRL 0x0a
+#define R_STAT 0x0b
+#define FS_ETH_MAX_REGS 0x17
struct fs_eth
{
- SysBusDevice busdev;
- MemoryRegion mmio;
- NICState *nic;
- NICConf conf;
-
- /* Two addrs in the filter. */
- uint8_t macaddr[2][6];
- uint32_t regs[FS_ETH_MAX_REGS];
-
- union {
- void *vdma_out;
- struct etraxfs_dma_client *dma_out;
- };
- union {
- void *vdma_in;
- struct etraxfs_dma_client *dma_in;
- };
-
- /* MDIO bus. */
- struct qemu_mdio mdio_bus;
- unsigned int phyaddr;
- int duplex_mismatch;
-
- /* PHY. */
- struct qemu_phy phy;
+ SysBusDevice busdev;
+ MemoryRegion mmio;
+ NICState *nic;
+ NICConf conf;
+
+ /* Two addrs in the filter. */
+ uint8_t macaddr[2][6];
+ uint32_t regs[FS_ETH_MAX_REGS];
+
+ union {
+ void *vdma_out;
+ struct etraxfs_dma_client *dma_out;
+ };
+ union {
+ void *vdma_in;
+ struct etraxfs_dma_client *dma_in;
+ };
+
+ /* MDIO bus. */
+ struct qemu_mdio mdio_bus;
+ unsigned int phyaddr;
+ int duplex_mismatch;
+
+ /* PHY. */
+ struct qemu_phy phy;
};
static void eth_validate_duplex(struct fs_eth *eth)
{
- struct qemu_phy *phy;
- unsigned int phy_duplex;
- unsigned int mac_duplex;
- int new_mm = 0;
-
- phy = eth->mdio_bus.devs[eth->phyaddr];
- phy_duplex = !!(phy->read(phy, 18) & (1 << 11));
- mac_duplex = !!(eth->regs[RW_REC_CTRL] & 128);
-
- if (mac_duplex != phy_duplex)
- new_mm = 1;
-
- if (eth->regs[RW_GEN_CTRL] & 1) {
- if (new_mm != eth->duplex_mismatch) {
- if (new_mm)
- printf("HW: WARNING "
- "ETH duplex mismatch MAC=%d PHY=%d\n",
- mac_duplex, phy_duplex);
- else
- printf("HW: ETH duplex ok.\n");
- }
- eth->duplex_mismatch = new_mm;
- }
+ struct qemu_phy *phy;
+ unsigned int phy_duplex;
+ unsigned int mac_duplex;
+ int new_mm = 0;
+
+ phy = eth->mdio_bus.devs[eth->phyaddr];
+ phy_duplex = !!(phy->read(phy, 18) & (1 << 11));
+ mac_duplex = !!(eth->regs[RW_REC_CTRL] & 128);
+
+ if (mac_duplex != phy_duplex) {
+ new_mm = 1;
+ }
+
+ if (eth->regs[RW_GEN_CTRL] & 1) {
+ if (new_mm != eth->duplex_mismatch) {
+ if (new_mm) {
+ printf("HW: WARNING ETH duplex mismatch MAC=%d PHY=%d\n",
+ mac_duplex, phy_duplex);
+ } else {
+ printf("HW: ETH duplex ok.\n");
+ }
+ }
+ eth->duplex_mismatch = new_mm;
+ }
}
static uint64_t
eth_read(void *opaque, hwaddr addr, unsigned int size)
{
- struct fs_eth *eth = opaque;
- uint32_t r = 0;
-
- addr >>= 2;
-
- switch (addr) {
- case R_STAT:
- r = eth->mdio_bus.mdio & 1;
- break;
- default:
- r = eth->regs[addr];
- D(printf ("%s %x\n", __func__, addr * 4));
- break;
- }
- return r;
+ struct fs_eth *eth = opaque;
+ uint32_t r = 0;
+
+ addr >>= 2;
+
+ switch (addr) {
+ case R_STAT:
+ r = eth->mdio_bus.mdio & 1;
+ break;
+ default:
+ r = eth->regs[addr];
+ D(printf("%s %x\n", __func__, addr * 4));
+ break;
+ }
+ return r;
}
static void eth_update_ma(struct fs_eth *eth, int ma)
{
- int reg;
- int i = 0;
-
- ma &= 1;
-
- reg = RW_MA0_LO;
- if (ma)
- reg = RW_MA1_LO;
-
- eth->macaddr[ma][i++] = eth->regs[reg];
- eth->macaddr[ma][i++] = eth->regs[reg] >> 8;
- eth->macaddr[ma][i++] = eth->regs[reg] >> 16;
- eth->macaddr[ma][i++] = eth->regs[reg] >> 24;
- eth->macaddr[ma][i++] = eth->regs[reg + 1];
- eth->macaddr[ma][i] = eth->regs[reg + 1] >> 8;
-
- D(printf("set mac%d=%x.%x.%x.%x.%x.%x\n", ma,
- eth->macaddr[ma][0], eth->macaddr[ma][1],
- eth->macaddr[ma][2], eth->macaddr[ma][3],
- eth->macaddr[ma][4], eth->macaddr[ma][5]));
+ int reg;
+ int i = 0;
+
+ ma &= 1;
+
+ reg = RW_MA0_LO;
+ if (ma) {
+ reg = RW_MA1_LO;
+ }
+
+ eth->macaddr[ma][i++] = eth->regs[reg];
+ eth->macaddr[ma][i++] = eth->regs[reg] >> 8;
+ eth->macaddr[ma][i++] = eth->regs[reg] >> 16;
+ eth->macaddr[ma][i++] = eth->regs[reg] >> 24;
+ eth->macaddr[ma][i++] = eth->regs[reg + 1];
+ eth->macaddr[ma][i] = eth->regs[reg + 1] >> 8;
+
+ D(printf("set mac%d=%x.%x.%x.%x.%x.%x\n", ma,
+ eth->macaddr[ma][0], eth->macaddr[ma][1],
+ eth->macaddr[ma][2], eth->macaddr[ma][3],
+ eth->macaddr[ma][4], eth->macaddr[ma][5]));
}
static void
eth_write(void *opaque, hwaddr addr,
uint64_t val64, unsigned int size)
{
- struct fs_eth *eth = opaque;
- uint32_t value = val64;
-
- addr >>= 2;
- switch (addr)
- {
- case RW_MA0_LO:
- case RW_MA0_HI:
- eth->regs[addr] = value;
- eth_update_ma(eth, 0);
- break;
- case RW_MA1_LO:
- case RW_MA1_HI:
- eth->regs[addr] = value;
- eth_update_ma(eth, 1);
- break;
-
- case RW_MGM_CTRL:
- /* Attach an MDIO/PHY abstraction. */
- if (value & 2)
- eth->mdio_bus.mdio = value & 1;
- if (eth->mdio_bus.mdc != (value & 4)) {
- mdio_cycle(ð->mdio_bus);
- eth_validate_duplex(eth);
- }
- eth->mdio_bus.mdc = !!(value & 4);
- eth->regs[addr] = value;
- break;
-
- case RW_REC_CTRL:
- eth->regs[addr] = value;
- eth_validate_duplex(eth);
- break;
-
- default:
- eth->regs[addr] = value;
- D(printf ("%s %x %x\n",
- __func__, addr, value));
- break;
- }
+ struct fs_eth *eth = opaque;
+ uint32_t value = val64;
+
+ addr >>= 2;
+ switch (addr) {
+ case RW_MA0_LO:
+ case RW_MA0_HI:
+ eth->regs[addr] = value;
+ eth_update_ma(eth, 0);
+ break;
+ case RW_MA1_LO:
+ case RW_MA1_HI:
+ eth->regs[addr] = value;
+ eth_update_ma(eth, 1);
+ break;
+
+ case RW_MGM_CTRL:
+ /* Attach an MDIO/PHY abstraction. */
+ if (value & 2) {
+ eth->mdio_bus.mdio = value & 1;
+ }
+ if (eth->mdio_bus.mdc != (value & 4)) {
+ mdio_cycle(ð->mdio_bus);
+ eth_validate_duplex(eth);
+ }
+ eth->mdio_bus.mdc = !!(value & 4);
+ eth->regs[addr] = value;
+ break;
+
+ case RW_REC_CTRL:
+ eth->regs[addr] = value;
+ eth_validate_duplex(eth);
+ break;
+
+ default:
+ eth->regs[addr] = value;
+ D(printf("%s %x %x\n", __func__, addr, value));
+ break;
+ }
}
/* The ETRAX FS has a groupt address table (GAT) which works like a k=1 bloom
- filter dropping group addresses we have not joined. The filter has 64
- bits (m). The has function is a simple nible xor of the group addr. */
+ filter dropping group addresses we have not joined. The filter has 64
+ bits (m). The has function is a simple nible xor of the group addr. */
static int eth_match_groupaddr(struct fs_eth *eth, const unsigned char *sa)
{
- unsigned int hsh;
- int m_individual = eth->regs[RW_REC_CTRL] & 4;
- int match;
-
- /* First bit on the wire of a MAC address signals multicast or
- physical address. */
- if (!m_individual && !(sa[0] & 1))
- return 0;
-
- /* Calculate the hash index for the GA registers. */
- hsh = 0;
- hsh ^= (*sa) & 0x3f;
- hsh ^= ((*sa) >> 6) & 0x03;
- ++sa;
- hsh ^= ((*sa) << 2) & 0x03c;
- hsh ^= ((*sa) >> 4) & 0xf;
- ++sa;
- hsh ^= ((*sa) << 4) & 0x30;
- hsh ^= ((*sa) >> 2) & 0x3f;
- ++sa;
- hsh ^= (*sa) & 0x3f;
- hsh ^= ((*sa) >> 6) & 0x03;
- ++sa;
- hsh ^= ((*sa) << 2) & 0x03c;
- hsh ^= ((*sa) >> 4) & 0xf;
- ++sa;
- hsh ^= ((*sa) << 4) & 0x30;
- hsh ^= ((*sa) >> 2) & 0x3f;
-
- hsh &= 63;
- if (hsh > 31)
- match = eth->regs[RW_GA_HI] & (1 << (hsh - 32));
- else
- match = eth->regs[RW_GA_LO] & (1 << hsh);
- D(printf("hsh=%x ga=%x.%x mtch=%d\n", hsh,
- eth->regs[RW_GA_HI], eth->regs[RW_GA_LO], match));
- return match;
+ unsigned int hsh;
+ int m_individual = eth->regs[RW_REC_CTRL] & 4;
+ int match;
+
+ /* First bit on the wire of a MAC address signals multicast or
+ physical address. */
+ if (!m_individual && !(sa[0] & 1)) {
+ return 0;
+ }
+
+ /* Calculate the hash index for the GA registers. */
+ hsh = 0;
+ hsh ^= (*sa) & 0x3f;
+ hsh ^= ((*sa) >> 6) & 0x03;
+ ++sa;
+ hsh ^= ((*sa) << 2) & 0x03c;
+ hsh ^= ((*sa) >> 4) & 0xf;
+ ++sa;
+ hsh ^= ((*sa) << 4) & 0x30;
+ hsh ^= ((*sa) >> 2) & 0x3f;
+ ++sa;
+ hsh ^= (*sa) & 0x3f;
+ hsh ^= ((*sa) >> 6) & 0x03;
+ ++sa;
+ hsh ^= ((*sa) << 2) & 0x03c;
+ hsh ^= ((*sa) >> 4) & 0xf;
+ ++sa;
+ hsh ^= ((*sa) << 4) & 0x30;
+ hsh ^= ((*sa) >> 2) & 0x3f;
+
+ hsh &= 63;
+ if (hsh > 31) {
+ match = eth->regs[RW_GA_HI] & (1 << (hsh - 32));
+ } else {
+ match = eth->regs[RW_GA_LO] & (1 << hsh);
+ }
+ D(printf("hsh=%x ga=%x.%x mtch=%d\n", hsh,
+ eth->regs[RW_GA_HI], eth->regs[RW_GA_LO], match));
+ return match;
}
static int eth_can_receive(NetClientState *nc)
{
- return 1;
+ return 1;
}
static ssize_t eth_receive(NetClientState *nc, const uint8_t *buf, size_t size)
{
- unsigned char sa_bcast[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
- struct fs_eth *eth = DO_UPCAST(NICState, nc, nc)->opaque;
- int use_ma0 = eth->regs[RW_REC_CTRL] & 1;
- int use_ma1 = eth->regs[RW_REC_CTRL] & 2;
- int r_bcast = eth->regs[RW_REC_CTRL] & 8;
-
- if (size < 12)
- return -1;
-
- D(printf("%x.%x.%x.%x.%x.%x ma=%d %d bc=%d\n",
- buf[0], buf[1], buf[2], buf[3], buf[4], buf[5],
- use_ma0, use_ma1, r_bcast));
-
- /* Does the frame get through the address filters? */
- if ((!use_ma0 || memcmp(buf, eth->macaddr[0], 6))
- && (!use_ma1 || memcmp(buf, eth->macaddr[1], 6))
- && (!r_bcast || memcmp(buf, sa_bcast, 6))
- && !eth_match_groupaddr(eth, buf))
- return size;
-
- /* FIXME: Find another way to pass on the fake csum. */
- etraxfs_dmac_input(eth->dma_in, (void *)buf, size + 4, 1);
+ unsigned char sa_bcast[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
+ struct fs_eth *eth = DO_UPCAST(NICState, nc, nc)->opaque;
+ int use_ma0 = eth->regs[RW_REC_CTRL] & 1;
+ int use_ma1 = eth->regs[RW_REC_CTRL] & 2;
+ int r_bcast = eth->regs[RW_REC_CTRL] & 8;
+
+ if (size < 12) {
+ return -1;
+ }
+
+ D(printf("%x.%x.%x.%x.%x.%x ma=%d %d bc=%d\n",
+ buf[0], buf[1], buf[2], buf[3], buf[4], buf[5],
+ use_ma0, use_ma1, r_bcast));
+
+ /* Does the frame get through the address filters? */
+ if ((!use_ma0 || memcmp(buf, eth->macaddr[0], 6))
+ && (!use_ma1 || memcmp(buf, eth->macaddr[1], 6))
+ && (!r_bcast || memcmp(buf, sa_bcast, 6))
+ && !eth_match_groupaddr(eth, buf)) {
+ return size;
+ }
+
+ /* FIXME: Find another way to pass on the fake csum. */
+ etraxfs_dmac_input(eth->dma_in, (void *)buf, size + 4, 1);
return size;
}
static int eth_tx_push(void *opaque, unsigned char *buf, int len, bool eop)
{
- struct fs_eth *eth = opaque;
+ struct fs_eth *eth = opaque;
- D(printf("%s buf=%p len=%d\n", __func__, buf, len));
- qemu_send_packet(ð->nic->nc, buf, len);
- return len;
+ D(printf("%s buf=%p len=%d\n", __func__, buf, len));
+ qemu_send_packet(ð->nic->nc, buf, len);
+ return len;
}
static void eth_set_link(NetClientState *nc)
{
- struct fs_eth *eth = DO_UPCAST(NICState, nc, nc)->opaque;
- D(printf("%s %d\n", __func__, nc->link_down));
- eth->phy.link = !nc->link_down;
+ struct fs_eth *eth = DO_UPCAST(NICState, nc, nc)->opaque;
+ D(printf("%s %d\n", __func__, nc->link_down));
+ eth->phy.link = !nc->link_down;
}
static const MemoryRegionOps eth_ops = {
- .read = eth_read,
- .write = eth_write,
- .endianness = DEVICE_LITTLE_ENDIAN,
- .valid = {
- .min_access_size = 4,
- .max_access_size = 4
- }
+ .read = eth_read,
+ .write = eth_write,
+ .endianness = DEVICE_LITTLE_ENDIAN,
+ .valid = {
+ .min_access_size = 4,
+ .max_access_size = 4
+ }
};
static void eth_cleanup(NetClientState *nc)
{
- struct fs_eth *eth = DO_UPCAST(NICState, nc, nc)->opaque;
+ struct fs_eth *eth = DO_UPCAST(NICState, nc, nc)->opaque;
- /* Disconnect the client. */
- eth->dma_out->client.push = NULL;
- eth->dma_out->client.opaque = NULL;
- eth->dma_in->client.opaque = NULL;
- eth->dma_in->client.pull = NULL;
+ /* Disconnect the client. */
+ eth->dma_out->client.push = NULL;
+ eth->dma_out->client.opaque = NULL;
+ eth->dma_in->client.opaque = NULL;
+ eth->dma_in->client.pull = NULL;
g_free(eth);
}
static NetClientInfo net_etraxfs_info = {
- .type = NET_CLIENT_OPTIONS_KIND_NIC,
- .size = sizeof(NICState),
- .can_receive = eth_can_receive,
- .receive = eth_receive,
- .cleanup = eth_cleanup,
- .link_status_changed = eth_set_link,
+ .type = NET_CLIENT_OPTIONS_KIND_NIC,
+ .size = sizeof(NICState),
+ .can_receive = eth_can_receive,
+ .receive = eth_receive,
+ .cleanup = eth_cleanup,
+ .link_status_changed = eth_set_link,
};
static int fs_eth_init(SysBusDevice *dev)
{
- struct fs_eth *s = FROM_SYSBUS(typeof(*s), dev);
+ struct fs_eth *s = FROM_SYSBUS(typeof(*s), dev);
- if (!s->dma_out || !s->dma_in) {
- hw_error("Unconnected ETRAX-FS Ethernet MAC.\n");
- }
+ if (!s->dma_out || !s->dma_in) {
+ hw_error("Unconnected ETRAX-FS Ethernet MAC.\n");
+ }
- s->dma_out->client.push = eth_tx_push;
- s->dma_out->client.opaque = s;
- s->dma_in->client.opaque = s;
- s->dma_in->client.pull = NULL;
+ s->dma_out->client.push = eth_tx_push;
+ s->dma_out->client.opaque = s;
+ s->dma_in->client.opaque = s;
+ s->dma_in->client.pull = NULL;
- memory_region_init_io(&s->mmio, ð_ops, s, "etraxfs-eth", 0x5c);
- sysbus_init_mmio(dev, &s->mmio);
+ memory_region_init_io(&s->mmio, ð_ops, s, "etraxfs-eth", 0x5c);
+ sysbus_init_mmio(dev, &s->mmio);
- qemu_macaddr_default_if_unset(&s->conf.macaddr);
- s->nic = qemu_new_nic(&net_etraxfs_info, &s->conf,
- object_get_typename(OBJECT(s)), dev->qdev.id, s);
- qemu_format_nic_info_str(&s->nic->nc, s->conf.macaddr.a);
+ qemu_macaddr_default_if_unset(&s->conf.macaddr);
+ s->nic = qemu_new_nic(&net_etraxfs_info, &s->conf,
+ object_get_typename(OBJECT(s)), dev->qdev.id, s);
+ qemu_format_nic_info_str(&s->nic->nc, s->conf.macaddr.a);
- tdk_init(&s->phy);
- mdio_attach(&s->mdio_bus, &s->phy, s->phyaddr);
- return 0;
+ tdk_init(&s->phy);
+ mdio_attach(&s->mdio_bus, &s->phy, s->phyaddr);
+ return 0;
}
static Property etraxfs_eth_properties[] = {
--
1.7.10.4
