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1 | /*- |
2 | * BSD LICENSE | |
3 | * | |
4 | * Copyright(c) Broadcom Limited. | |
5 | * All rights reserved. | |
6 | * | |
7 | * Redistribution and use in source and binary forms, with or without | |
8 | * modification, are permitted provided that the following conditions | |
9 | * are met: | |
10 | * | |
11 | * * Redistributions of source code must retain the above copyright | |
12 | * notice, this list of conditions and the following disclaimer. | |
13 | * * Redistributions in binary form must reproduce the above copyright | |
14 | * notice, this list of conditions and the following disclaimer in | |
15 | * the documentation and/or other materials provided with the | |
16 | * distribution. | |
17 | * * Neither the name of Broadcom Corporation nor the names of its | |
18 | * contributors may be used to endorse or promote products derived | |
19 | * from this software without specific prior written permission. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
22 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
23 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
24 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
25 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
26 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
27 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
28 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
29 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
30 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
31 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
32 | */ | |
33 | ||
34 | #ifndef _BNXT_TXQ_H_ | |
35 | #define _BNXT_TXQ_H_ | |
36 | ||
37 | struct bnxt_tx_ring_info; | |
38 | struct bnxt_cp_ring_info; | |
39 | struct bnxt_tx_queue { | |
40 | uint16_t nb_tx_desc; /* number of TX descriptors */ | |
41 | uint16_t tx_free_thresh;/* minimum TX before freeing */ | |
42 | /** Index to last TX descriptor to have been cleaned. */ | |
43 | uint16_t last_desc_cleaned; | |
44 | /** Total number of TX descriptors ready to be allocated. */ | |
45 | uint16_t tx_next_dd; /* next desc to scan for DD bit */ | |
46 | uint16_t tx_next_rs; /* next desc to set RS bit */ | |
47 | uint16_t queue_id; /* TX queue index */ | |
48 | uint16_t reg_idx; /* TX queue register index */ | |
49 | uint8_t port_id; /* Device port identifier */ | |
50 | uint8_t pthresh; /* Prefetch threshold register */ | |
51 | uint8_t hthresh; /* Host threshold register */ | |
52 | uint8_t wthresh; /* Write-back threshold reg */ | |
53 | uint32_t txq_flags; /* Holds flags for this TXq */ | |
54 | uint32_t ctx_curr; /* Hardware context states */ | |
55 | uint8_t tx_deferred_start; /* not in global dev start */ | |
56 | ||
57 | struct bnxt *bp; | |
58 | int index; | |
59 | int tx_wake_thresh; | |
60 | struct bnxt_tx_ring_info *tx_ring; | |
61 | ||
62 | unsigned int cp_nr_rings; | |
63 | struct bnxt_cp_ring_info *cp_ring; | |
64 | }; | |
65 | ||
66 | void bnxt_free_txq_stats(struct bnxt_tx_queue *txq); | |
67 | void bnxt_free_tx_mbufs(struct bnxt *bp); | |
68 | void bnxt_tx_queue_release_op(void *tx_queue); | |
69 | int bnxt_tx_queue_setup_op(struct rte_eth_dev *eth_dev, | |
70 | uint16_t queue_idx, | |
71 | uint16_t nb_desc, | |
72 | unsigned int socket_id, | |
73 | const struct rte_eth_txconf *tx_conf); | |
74 | ||
75 | #endif |