Serial RapidIO (SRIO) User's Guide

www.ti.com

Descriptor

Buffer

PortRXDMA

state

RXqueueheaddescriptor

pointer

SRIO Functional Description

Figure 24. RX Buffer Descriptors

TX Buffer Descriptor

TX_DESCP0_0->TXDESC0 = CSL_FMK( SRIO_TXDESC0_N_POINTER,(int )TX_DESCP0_1 ); //link to

TX_DESCP0_1

TX_DESCP0_0->TXDESC1 = CSL_FMK( SRIO_TXDESC1_B_POINTER,(int )&xmtBuff1[0] ); //Buffer

Pointer

TX_DESCP0_0->TXDESC2 = CSL_FMK( SRIO_TXDESC2_DESTID, 0xBEEF) |

CSL_FMK( SRIO_TXDESC2_PRI, 1) |

CSL_FMK( SRIO_TXDESC2_TT, 1) |

CSL_FMK( SRIO_TXDESC2_PORTID, 3) |

CSL_FMK( SRIO_TXDESC2_SSIZE, SSIZE_256B)|

CSL_FMK( SRIO_TXDESC2_MAILBOX, 0);

TX_DESCP0_0->TXDESC3 = CSL_FMK( SRIO_TXDESC3_SOP,1 ) |

CSL_FMK( SRIO_TXDESC3_EOP,1 ) |

CSL_FMK( SRIO_TXDESC3_OWNERSHIP,1 ) |

CSL_FMK( SRIO_TXDESC3_EOQ,1 ) |

CSL_FMK( SRIO_TXDESC3_TEARDOWN,0 ) |

CSL_FMK( SRIO_TXDESC3_RETRY_COUNT,0 )|

CSL_FMK( SRIO_TXDESC3_MESSAGE_LENGTH,MLEN_512DW );

TX_DESCP0_1->TXDESC0 = CSL_FMK( SRIO_TXDESC0_N_POINTER, 0); //end of message

TX_DESCP0_1->TXDESC1 = CSL_FMK( SRIO_TXDESC1_B_POINTER,(int )&xmtBuff2[0] );

TX_DESCP0_1->TXDESC2 = CSL_FMK( SRIO_TXDESC2_DESTID, 0xBEEF) |