dev/ti/if_ti.c

56  * extended jumbo receive ring desciptors and a mini receive ring.
877  * Send the NIC a command via the command ring.
1001     bus_dma_tag_t *tag, uint8_t **ring, bus_dmamap_t *map, bus_addr_t *paddr,
1015 	/* Allocate DMA'able memory for ring. */
1016 	error = bus_dmamem_alloc(*tag, (void **)ring,
1023 	/* Load the address of the ring. */
1025 	error = bus_dmamap_load(*tag, *map, *ring, maxsize, ti_dma_map_addr,
1037 ti_dma_ring_free(struct ti_softc *sc, bus_dma_tag_t *tag, uint8_t **ring,
1045 	if (*ring != NULL) {
1046 		bus_dmamem_free(*tag, *ring, map);
1047 		*ring = NULL;
1085 	    "event ring");
1089 	/* Event ring */
1094 	    "event ring");
1098 	/* Command ring lives in shared memory so no need to create DMA area. */
1100 	/* Standard RX ring */
1105 	    &sc->ti_rdata.ti_rx_std_ring_paddr, "RX ring");
1109 	/* Jumbo RX ring */
1114 	    &sc->ti_rdata.ti_rx_jumbo_ring_paddr, "jumbo RX ring");
1118 	/* RX return ring */
1123 	    &sc->ti_rdata.ti_rx_return_ring_paddr, "RX return ring");
1213 	/* Mini ring and TX ring is not available on Tigon 1. */
1217 	/* TX ring */
1221 	    "TX ring");
1225 	/* Mini RX ring */
1230 	    &sc->ti_rdata.ti_rx_mini_ring_paddr, "mini RX ring");
1337 	/* Destroy standard RX ring. */
1342 	/* Destroy jumbo RX ring. */
1347 	/* Destroy mini RX ring. */
1352 	/* Destroy RX return ring. */
1357 	/* Destroy TX ring. */
1365 	/* Destroy event ring. */
1382  * Intialize a standard receive ring descriptor.
1436  * Intialize a mini receive ring descriptor. This only applies to
1493  * Initialize a jumbo receive ring descriptor. This allocates
1563  * Initialize a jumbo receive ring descriptor. This allocates
1711  * The standard receive ring has 512 entries in it. At 2K per mbuf cluster,
1713  * 256 ring entries and hope that our CPU is fast enough to keep up with
2204 	/* Set up the contents of the general info and ring control blocks. */
2206 	/* Set up the event ring and producer pointer. */
2218 	/* Set up the command ring and producer mailbox. */
2239 	/* Set up the standard receive ring. */
2250 	/* Set up the jumbo receive ring. */
2268 	 * Set up the mini ring. Only activated on the
2286 	 * Set up the receive return ring.
2297 	 * Set up the tx ring. Note: for the Tigon 2, we have the option
2298 	 * of putting the transmit ring in the host's address space and
2299 	 * letting the chip DMA it instead of leaving the ring in the NIC's
2750  * 1) the frame is from the mini receive ring (can only happen)
2752  * 2) the frame is from the jumbo receive ring
2753  * 3) the frame is from the standard receive ring
2945 	 * Go through our tx ring and free mbufs for those
2998 		/* Check RX return ring producer/consumer */
3001 		/* Check TX ring producer/consumer */
3051  * Encapsulate an mbuf chain in the tx ring  by coupling the mbuf data
3179 		 * Pack the data into the transmit ring. If we
3181 		 * for the NIC to drain the ring.
3235 	/* Init the gen info block, ring control blocks and firmware. */
3285 	/* Init RX ring. */
3292 	/* Init jumbo RX ring. */
3304 	 * mini ring.
3318 	/* Init TX ring. */