1956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson/* 2956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson * PCI Backend/Frontend Common Data Structures & Macros 3956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson * 4956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson * Permission is hereby granted, free of charge, to any person obtaining a copy 5956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson * of this software and associated documentation files (the "Software"), to 6956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson * deal in the Software without restriction, including without limitation the 7956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 8956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson * sell copies of the Software, and to permit persons to whom the Software is 9956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson * furnished to do so, subject to the following conditions: 10956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson * 11956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson * The above copyright notice and this permission notice shall be included in 12956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson * all copies or substantial portions of the Software. 13956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson * 14956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 17956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 18956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 19956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 20956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson * DEALINGS IN THE SOFTWARE. 21956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson * 22956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson * Author: Ryan Wilson <hap9@epoch.ncsc.mil> 23956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson */ 24956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson#ifndef __XEN_PCI_COMMON_H__ 25956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson#define __XEN_PCI_COMMON_H__ 26956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson 27956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson/* Be sure to bump this number if you change this file */ 28956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson#define XEN_PCI_MAGIC "7" 29956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson 30956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson/* xen_pci_sharedinfo flags */ 31956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson#define _XEN_PCIF_active (0) 32956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson#define XEN_PCIF_active (1<<_XEN_PCIF_active) 33956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson#define _XEN_PCIB_AERHANDLER (1) 34956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson#define XEN_PCIB_AERHANDLER (1<<_XEN_PCIB_AERHANDLER) 35956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson#define _XEN_PCIB_active (2) 36956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson#define XEN_PCIB_active (1<<_XEN_PCIB_active) 37956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson 38956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson/* xen_pci_op commands */ 39956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson#define XEN_PCI_OP_conf_read (0) 40956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson#define XEN_PCI_OP_conf_write (1) 41956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson#define XEN_PCI_OP_enable_msi (2) 42956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson#define XEN_PCI_OP_disable_msi (3) 43956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson#define XEN_PCI_OP_enable_msix (4) 44956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson#define XEN_PCI_OP_disable_msix (5) 45956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson#define XEN_PCI_OP_aer_detected (6) 46956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson#define XEN_PCI_OP_aer_resume (7) 47956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson#define XEN_PCI_OP_aer_mmio (8) 48956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson#define XEN_PCI_OP_aer_slotreset (9) 49956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson 50956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson/* xen_pci_op error numbers */ 51956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson#define XEN_PCI_ERR_success (0) 52956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson#define XEN_PCI_ERR_dev_not_found (-1) 53956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson#define XEN_PCI_ERR_invalid_offset (-2) 54956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson#define XEN_PCI_ERR_access_denied (-3) 55956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson#define XEN_PCI_ERR_not_implemented (-4) 56956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson/* XEN_PCI_ERR_op_failed - backend failed to complete the operation */ 57956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson#define XEN_PCI_ERR_op_failed (-5) 58956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson 59956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson/* 60956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson * it should be PAGE_SIZE-sizeof(struct xen_pci_op))/sizeof(struct msix_entry)) 61956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson * Should not exceed 128 62956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson */ 63956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson#define SH_INFO_MAX_VEC 128 64956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson 65956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilsonstruct xen_msix_entry { 66956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson uint16_t vector; 67956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson uint16_t entry; 68956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson}; 69956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilsonstruct xen_pci_op { 70956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson /* IN: what action to perform: XEN_PCI_OP_* */ 71956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson uint32_t cmd; 72956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson 73956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson /* OUT: will contain an error number (if any) from errno.h */ 74956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson int32_t err; 75956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson 76956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson /* IN: which device to touch */ 77956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson uint32_t domain; /* PCI Domain/Segment */ 78956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson uint32_t bus; 79956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson uint32_t devfn; 80956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson 81956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson /* IN: which configuration registers to touch */ 82956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson int32_t offset; 83956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson int32_t size; 84956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson 85956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson /* IN/OUT: Contains the result after a READ or the value to WRITE */ 86956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson uint32_t value; 87956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson /* IN: Contains extra infor for this operation */ 88956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson uint32_t info; 89956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson /*IN: param for msi-x */ 90956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson struct xen_msix_entry msix_entries[SH_INFO_MAX_VEC]; 91956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson}; 92956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson 93956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson/*used for pcie aer handling*/ 94956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilsonstruct xen_pcie_aer_op { 95956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson /* IN: what action to perform: XEN_PCI_OP_* */ 96956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson uint32_t cmd; 97956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson /*IN/OUT: return aer_op result or carry error_detected state as input*/ 98956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson int32_t err; 99956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson 100956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson /* IN: which device to touch */ 101956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson uint32_t domain; /* PCI Domain/Segment*/ 102956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson uint32_t bus; 103956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson uint32_t devfn; 104956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson}; 105956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilsonstruct xen_pci_sharedinfo { 106956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson /* flags - XEN_PCIF_* */ 107956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson uint32_t flags; 108956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson struct xen_pci_op op; 109956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson struct xen_pcie_aer_op aer_op; 110956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson}; 111956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson 112956a9202cd1220397933a07beda9f96b3df1fa24Ryan Wilson#endif /* __XEN_PCI_COMMON_H__ */ 113