4 * Copyright(c) 2014-2015 Broadcom Corporation.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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
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.
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.
36 #include <rte_malloc.h>
41 #include "bnxt_ring.h"
42 #include "hsi_struct_def_dpdk.h"
48 static void bnxt_int_handler(void *param)
50 struct rte_eth_dev *eth_dev = (struct rte_eth_dev *)param;
51 struct bnxt *bp = (struct bnxt *)eth_dev->data->dev_private;
52 struct bnxt_cp_ring_info *cpr = bp->def_cp_ring;
53 uint32_t raw_cons = cpr->cp_raw_cons;
55 struct cmpl_base *cmp;
58 cons = RING_CMP(cpr->cp_ring_struct, raw_cons);
59 cmp = &cpr->cp_desc_ring[cons];
61 if (!CMP_VALID(cmp, raw_cons, cpr->cp_ring_struct))
64 switch (CMP_TYPE(cmp)) {
65 case CMPL_BASE_TYPE_HWRM_ASYNC_EVENT:
66 /* Handle any async event */
67 bnxt_handle_async_event(bp, cmp);
69 case CMPL_BASE_TYPE_HWRM_FWD_RESP:
70 /* Handle HWRM forwarded responses */
71 bnxt_handle_fwd_req(bp, cmp);
74 /* Ignore any other events */
77 raw_cons = NEXT_RAW_CMP(raw_cons);
79 B_CP_DB_REARM(cpr, cpr->cp_raw_cons);
82 void bnxt_free_int(struct bnxt *bp)
89 rte_intr_disable(&bp->pdev->intr_handle);
90 rte_intr_callback_unregister(&bp->pdev->intr_handle,
95 rte_free((void *)bp->irq_tbl);
100 void bnxt_disable_int(struct bnxt *bp)
102 struct bnxt_cp_ring_info *cpr = bp->def_cp_ring;
104 /* Only the default completion ring */
105 B_CP_DIS_DB(cpr, cpr->cp_raw_cons);
108 void bnxt_enable_int(struct bnxt *bp)
110 struct bnxt_cp_ring_info *cpr = bp->def_cp_ring;
112 B_CP_DB_REARM(cpr, cpr->cp_raw_cons);
115 int bnxt_setup_int(struct bnxt *bp)
118 const int len = sizeof(bp->irq_tbl[0].name);
121 /* DPDK host only supports 1 MSI-X vector */
123 bp->irq_tbl = rte_calloc("bnxt_irq_tbl", total_vecs,
124 sizeof(struct bnxt_irq), 0);
126 for (i = 0; i < total_vecs; i++) {
127 bp->irq_tbl[i].vector = i;
128 snprintf(bp->irq_tbl[i].name, len,
129 "%s-%d", bp->eth_dev->data->name, i);
130 bp->irq_tbl[i].handler = bnxt_int_handler;
139 RTE_LOG(ERR, PMD, "bnxt_irq_tbl setup failed");
143 int bnxt_request_int(struct bnxt *bp)
147 struct bnxt_irq *irq = bp->irq_tbl;
149 rte_intr_callback_register(&bp->pdev->intr_handle, irq->handler,
150 (void *)bp->eth_dev);
151 rte_intr_enable(&bp->pdev->intr_handle);