diff options
Diffstat (limited to 'qemu/roms/ipxe/src/drivers/net/intel.h')
| -rw-r--r-- | qemu/roms/ipxe/src/drivers/net/intel.h | 123 |
1 files changed, 99 insertions, 24 deletions
diff --git a/qemu/roms/ipxe/src/drivers/net/intel.h b/qemu/roms/ipxe/src/drivers/net/intel.h index 8c4479bb4..ce9e3f467 100644 --- a/qemu/roms/ipxe/src/drivers/net/intel.h +++ b/qemu/roms/ipxe/src/drivers/net/intel.h @@ -7,7 +7,7 @@ * */ -FILE_LICENCE ( GPL2_OR_LATER ); +FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); #include <stdint.h> #include <ipxe/if_ether.h> @@ -22,33 +22,38 @@ struct intel_descriptor { uint64_t address; /** Length */ uint16_t length; - /** Reserved */ - uint8_t reserved_a; + /** Flags */ + uint8_t flags; /** Command */ uint8_t command; /** Status */ - uint8_t status; - /** Errors */ - uint8_t errors; - /** Reserved */ - uint16_t reserved_b; + uint32_t status; } __attribute__ (( packed )); -/** Packet descriptor command bits */ -enum intel_descriptor_command { - /** Report status */ - INTEL_DESC_CMD_RS = 0x08, - /** Insert frame checksum (CRC) */ - INTEL_DESC_CMD_IFCS = 0x02, - /** End of packet */ - INTEL_DESC_CMD_EOP = 0x01, -}; +/** Descriptor type */ +#define INTEL_DESC_FL_DTYP( dtyp ) ( (dtyp) << 4 ) +#define INTEL_DESC_FL_DTYP_DATA INTEL_DESC_FL_DTYP ( 0x03 ) -/** Packet descriptor status bits */ -enum intel_descriptor_status { - /** Descriptor done */ - INTEL_DESC_STATUS_DD = 0x01, -}; +/** Descriptor extension */ +#define INTEL_DESC_CMD_DEXT 0x20 + +/** Report status */ +#define INTEL_DESC_CMD_RS 0x08 + +/** Insert frame checksum (CRC) */ +#define INTEL_DESC_CMD_IFCS 0x02 + +/** End of packet */ +#define INTEL_DESC_CMD_EOP 0x01 + +/** Descriptor done */ +#define INTEL_DESC_STATUS_DD 0x00000001UL + +/** Receive error */ +#define INTEL_DESC_STATUS_RXE 0x00000100UL + +/** Payload length */ +#define INTEL_DESC_STATUS_PAYLEN( len ) ( (len) << 14 ) /** Device Control Register */ #define INTEL_CTRL 0x00000UL @@ -91,7 +96,9 @@ enum intel_descriptor_status { /** Interrupt Cause Read Register */ #define INTEL_ICR 0x000c0UL #define INTEL_IRQ_TXDW 0x00000001UL /**< Transmit descriptor done */ +#define INTEL_IRQ_TXQE 0x00000002UL /**< Transmit queue empty */ #define INTEL_IRQ_LSC 0x00000004UL /**< Link status change */ +#define INTEL_IRQ_RXDMT0 0x00000010UL /**< Receive queue low */ #define INTEL_IRQ_RXT0 0x00000080UL /**< Receive timer */ #define INTEL_IRQ_RXO 0x00000400UL /**< Receive overrun */ @@ -207,6 +214,15 @@ struct intel_ring { unsigned int reg; /** Length (in bytes) */ size_t len; + + /** Populate descriptor + * + * @v desc Descriptor + * @v addr Data buffer address + * @v len Length of data + */ + void ( * describe ) ( struct intel_descriptor *desc, physaddr_t addr, + size_t len ); }; /** @@ -215,12 +231,39 @@ struct intel_ring { * @v ring Descriptor ring * @v count Number of descriptors * @v reg Descriptor register block + * @v describe Method to populate descriptor */ static inline __attribute__ (( always_inline)) void -intel_init_ring ( struct intel_ring *ring, unsigned int count, - unsigned int reg ) { +intel_init_ring ( struct intel_ring *ring, unsigned int count, unsigned int reg, + void ( * describe ) ( struct intel_descriptor *desc, + physaddr_t addr, size_t len ) ) { + ring->len = ( count * sizeof ( ring->desc[0] ) ); ring->reg = reg; + ring->describe = describe; +} + +/** An Intel virtual function mailbox */ +struct intel_mailbox { + /** Mailbox control register */ + unsigned int ctrl; + /** Mailbox memory base */ + unsigned int mem; +}; + +/** + * Initialise mailbox + * + * @v mbox Mailbox + * @v ctrl Mailbox control register + * @v mem Mailbox memory register base + */ +static inline __attribute__ (( always_inline )) void +intel_init_mbox ( struct intel_mailbox *mbox, unsigned int ctrl, + unsigned int mem ) { + + mbox->ctrl = ctrl; + mbox->mem = mem; } /** An Intel network card */ @@ -231,6 +274,8 @@ struct intel_nic { unsigned int port; /** Flags */ unsigned int flags; + /** Forced interrupts */ + unsigned int force_icr; /** EEPROM */ struct nvs_device eeprom; @@ -239,6 +284,9 @@ struct intel_nic { /** EEPROM address shift */ unsigned int eerd_addr_shift; + /** Mailbox */ + struct intel_mailbox mbox; + /** Transmit descriptor ring */ struct intel_ring tx; /** Receive descriptor ring */ @@ -251,8 +299,35 @@ struct intel_nic { enum intel_flags { /** PBS/PBA errata workaround required */ INTEL_PBS_ERRATA = 0x0001, + /** VMware missing interrupt workaround required */ + INTEL_VMWARE = 0x0002, }; +/** + * Dump diagnostic information + * + * @v intel Intel device + */ +static inline void intel_diag ( struct intel_nic *intel ) { + + DBGC ( intel, "INTEL %p TX %04x(%02x)/%04x(%02x) " + "RX %04x(%02x)/%04x(%02x)\n", intel, + ( intel->tx.cons & 0xffff ), + readl ( intel->regs + intel->tx.reg + INTEL_xDH ), + ( intel->tx.prod & 0xffff ), + readl ( intel->regs + intel->tx.reg + INTEL_xDT ), + ( intel->rx.cons & 0xffff ), + readl ( intel->regs + intel->rx.reg + INTEL_xDH ), + ( intel->rx.prod & 0xffff ), + readl ( intel->regs + intel->rx.reg + INTEL_xDT ) ); +} + +extern void intel_describe_tx ( struct intel_descriptor *tx, + physaddr_t addr, size_t len ); +extern void intel_describe_tx_adv ( struct intel_descriptor *tx, + physaddr_t addr, size_t len ); +extern void intel_describe_rx ( struct intel_descriptor *rx, + physaddr_t addr, size_t len ); extern int intel_create_ring ( struct intel_nic *intel, struct intel_ring *ring ); extern void intel_destroy_ring ( struct intel_nic *intel, |