3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs * CDDL HEADER START
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs * The contents of this file are subject to the terms of the
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs * Common Development and Distribution License (the "License").
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs * You may not use this file except in compliance with the License.
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs * See the License for the specific language governing permissions
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs * and limitations under the License.
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs * When distributing Covered Code, include this CDDL HEADER in each
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs * If applicable, add the following below this CDDL HEADER, with the
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs * fields enclosed by brackets "[]" replaced with your own identifying
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs * information: Portions Copyright [yyyy] [name of copyright owner]
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs * CDDL HEADER END
cf6ef8948349f8e11c5d4068f50996f8c0e8926dMichael Speer * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs * Use is subject to license terms.
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qsextern "C" {
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs * Transmit load balancing definitions.
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs * Descriptor ring empty:
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs * (1) head index is equal to tail index.
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs * (2) wrapped around bits are the same.
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs * Descriptor ring full:
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs * (1) head index is equal to tail index.
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs * (2) wrapped around bits are different.
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs#define TXDMA_RING_EMPTY(head, head_wrap, tail, tail_wrap) \
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs ((head == tail && head_wrap == tail_wrap) ? B_TRUE : B_FALSE)
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs#define TXDMA_RING_FULL(head, head_wrap, tail, tail_wrap) \
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs ((head == tail && head_wrap != tail_wrap) ? B_TRUE : B_FALSE)
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs#define TXDMA_DESC_NEXT_INDEX(index, entries, wrap_mask) \
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs hxge_os_dma_common_t buf_dma; /* premapped buffer blocks */
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs hxge_os_dma_handle_t buf_dma_handle; /* premapped buffer handle */
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs hxge_os_dma_handle_t dma_handle; /* DMA handle for normal send */
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs * TX Statistics.
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs/* Transmit Mailbox */
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs * Transmit prototypes.
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qsvoid hxge_setup_dma_common(p_hxge_dma_common_t, p_hxge_dma_common_t,
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qshxge_status_t hxge_reset_txdma_channel(p_hxge_t hxgep, uint16_t channel,
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qshxge_status_t hxge_init_txdma_channel_event_mask(p_hxge_t hxgep,
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qshxge_status_t hxge_enable_txdma_channel(p_hxge_t hxgep, uint16_t channel,
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qsp_mblk_t hxge_tx_pkt_header_reserve(p_mblk_t mp, uint8_t *npads);
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs int hxge_tx_pkt_nmblocks(p_mblk_t mp, int *tot_xfer_len_p);
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qsvoid hxge_fill_tx_hdr(p_mblk_t mp, boolean_t fill_len, boolean_t l4_cksum,
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qshxge_status_t hxge_txdma_hw_mode(p_hxge_t hxgep, boolean_t enable);
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qsvoid hxge_txdma_fix_channel(p_hxge_t hxgep, uint16_t channel);
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qsvoid hxge_txdma_fixup_channel(p_hxge_t hxgep, p_tx_ring_t ring_p,
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qsvoid hxge_txdma_hw_kick_channel(p_hxge_t hxgep, p_tx_ring_t ring_p,
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qsvoid hxge_txdma_fix_hung_channel(p_hxge_t hxgep, uint16_t channel);
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qsvoid hxge_txdma_fixup_hung_channel(p_hxge_t hxgep, p_tx_ring_t ring_p,
1ed830817782694e7259ee818a2f8eee72233f1eMichael Speermblk_t *hxge_tx_ring_send(void *arg, mblk_t *mp);
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qshxge_status_t hxge_txdma_handle_sys_errors(p_hxge_t hxgep);
3dec9fcdd56adf1b4a563137b4915c8f2d83b881qs#endif /* _SYS_HXGE_HXGE_TXDMA_H */