2 * Copyright (c) 2016 Solarflare Communications Inc.
5 * This software was jointly developed between OKTET Labs (under contract
6 * for Solarflare) and Solarflare Communications, Inc.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
11 * 1. Redistributions of source code must retain the above copyright notice,
12 * this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright notice,
14 * this list of conditions and the following disclaimer in the documentation
15 * and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
19 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
21 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
22 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
23 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
24 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
26 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
27 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 sfc_intr_start(struct sfc_adapter *sa)
38 struct sfc_intr *intr = &sa->intr;
39 struct rte_intr_handle *intr_handle;
40 struct rte_pci_device *pci_dev;
43 sfc_log_init(sa, "entry");
46 * The EFX common code event queue module depends on the interrupt
47 * module. Ensure that the interrupt module is always initialized
48 * (even if interrupts are not used). Status memory is required
49 * for Siena only and may be NULL for EF10.
51 sfc_log_init(sa, "efx_intr_init");
52 rc = efx_intr_init(sa->nic, intr->type, NULL);
56 pci_dev = SFC_DEV_TO_PCI(sa->eth_dev);
57 intr_handle = &pci_dev->intr_handle;
59 sfc_log_init(sa, "done type=%u max_intr=%d nb_efd=%u vec=%p",
60 intr_handle->type, intr_handle->max_intr,
61 intr_handle->nb_efd, intr_handle->intr_vec);
65 sfc_log_init(sa, "failed %d", rc);
70 sfc_intr_stop(struct sfc_adapter *sa)
72 sfc_log_init(sa, "entry");
74 efx_intr_fini(sa->nic);
76 sfc_log_init(sa, "done");
80 sfc_intr_init(struct sfc_adapter *sa)
82 sfc_log_init(sa, "entry");
84 sfc_log_init(sa, "done");
89 sfc_intr_fini(struct sfc_adapter *sa)
91 sfc_log_init(sa, "entry");
93 sfc_log_init(sa, "done");
97 sfc_intr_attach(struct sfc_adapter *sa)
99 struct sfc_intr *intr = &sa->intr;
100 struct rte_pci_device *pci_dev = SFC_DEV_TO_PCI(sa->eth_dev);
102 sfc_log_init(sa, "entry");
104 switch (pci_dev->intr_handle.type) {
105 #ifdef RTE_EXEC_ENV_LINUXAPP
106 case RTE_INTR_HANDLE_VFIO_LEGACY:
107 intr->type = EFX_INTR_LINE;
109 case RTE_INTR_HANDLE_VFIO_MSI:
110 case RTE_INTR_HANDLE_VFIO_MSIX:
111 intr->type = EFX_INTR_MESSAGE;
115 intr->type = EFX_INTR_INVALID;
119 sfc_log_init(sa, "done");
124 sfc_intr_detach(struct sfc_adapter *sa)
126 sfc_log_init(sa, "entry");
128 sa->intr.type = EFX_INTR_INVALID;
130 sfc_log_init(sa, "done");