Index: head/sys/dev/pci/pci_user.c =================================================================== --- head/sys/dev/pci/pci_user.c (revision 332342) +++ head/sys/dev/pci/pci_user.c (revision 332343) @@ -1,1025 +1,1062 @@ /*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 1997, Stefan Esser * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice unmodified, this list of conditions, and the following * disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include __FBSDID("$FreeBSD$"); #include "opt_bus.h" /* XXX trim includes */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "pcib_if.h" #include "pci_if.h" /* * This is the user interface to PCI configuration space. */ static d_open_t pci_open; static d_close_t pci_close; -static int pci_conf_match(struct pci_match_conf *matches, int num_matches, - struct pci_conf *match_buf); static d_ioctl_t pci_ioctl; struct cdevsw pcicdev = { .d_version = D_VERSION, .d_flags = D_NEEDGIANT, .d_open = pci_open, .d_close = pci_close, .d_ioctl = pci_ioctl, .d_name = "pci", }; static int pci_open(struct cdev *dev, int oflags, int devtype, struct thread *td) { int error; if (oflags & FWRITE) { error = securelevel_gt(td->td_ucred, 0); if (error) return (error); } return (0); } static int pci_close(struct cdev *dev, int flag, int devtype, struct thread *td) { return 0; } /* * Match a single pci_conf structure against an array of pci_match_conf * structures. The first argument, 'matches', is an array of num_matches * pci_match_conf structures. match_buf is a pointer to the pci_conf * structure that will be compared to every entry in the matches array. * This function returns 1 on failure, 0 on success. */ static int -pci_conf_match(struct pci_match_conf *matches, int num_matches, +pci_conf_match_native(struct pci_match_conf *matches, int num_matches, struct pci_conf *match_buf) { int i; if ((matches == NULL) || (match_buf == NULL) || (num_matches <= 0)) return(1); for (i = 0; i < num_matches; i++) { /* * I'm not sure why someone would do this...but... */ if (matches[i].flags == PCI_GETCONF_NO_MATCH) continue; /* * Look at each of the match flags. If it's set, do the * comparison. If the comparison fails, we don't have a * match, go on to the next item if there is one. */ if (((matches[i].flags & PCI_GETCONF_MATCH_DOMAIN) != 0) && (match_buf->pc_sel.pc_domain != matches[i].pc_sel.pc_domain)) continue; if (((matches[i].flags & PCI_GETCONF_MATCH_BUS) != 0) && (match_buf->pc_sel.pc_bus != matches[i].pc_sel.pc_bus)) continue; if (((matches[i].flags & PCI_GETCONF_MATCH_DEV) != 0) && (match_buf->pc_sel.pc_dev != matches[i].pc_sel.pc_dev)) continue; if (((matches[i].flags & PCI_GETCONF_MATCH_FUNC) != 0) && (match_buf->pc_sel.pc_func != matches[i].pc_sel.pc_func)) continue; if (((matches[i].flags & PCI_GETCONF_MATCH_VENDOR) != 0) && (match_buf->pc_vendor != matches[i].pc_vendor)) continue; if (((matches[i].flags & PCI_GETCONF_MATCH_DEVICE) != 0) && (match_buf->pc_device != matches[i].pc_device)) continue; if (((matches[i].flags & PCI_GETCONF_MATCH_CLASS) != 0) && (match_buf->pc_class != matches[i].pc_class)) continue; if (((matches[i].flags & PCI_GETCONF_MATCH_UNIT) != 0) && (match_buf->pd_unit != matches[i].pd_unit)) continue; if (((matches[i].flags & PCI_GETCONF_MATCH_NAME) != 0) && (strncmp(matches[i].pd_name, match_buf->pd_name, sizeof(match_buf->pd_name)) != 0)) continue; return(0); } return(1); } #if defined(COMPAT_FREEBSD4) || defined(COMPAT_FREEBSD5) || \ defined(COMPAT_FREEBSD6) #define PRE7_COMPAT typedef enum { PCI_GETCONF_NO_MATCH_OLD = 0x00, PCI_GETCONF_MATCH_BUS_OLD = 0x01, PCI_GETCONF_MATCH_DEV_OLD = 0x02, PCI_GETCONF_MATCH_FUNC_OLD = 0x04, PCI_GETCONF_MATCH_NAME_OLD = 0x08, PCI_GETCONF_MATCH_UNIT_OLD = 0x10, PCI_GETCONF_MATCH_VENDOR_OLD = 0x20, PCI_GETCONF_MATCH_DEVICE_OLD = 0x40, PCI_GETCONF_MATCH_CLASS_OLD = 0x80 } pci_getconf_flags_old; struct pcisel_old { u_int8_t pc_bus; /* bus number */ u_int8_t pc_dev; /* device on this bus */ u_int8_t pc_func; /* function on this device */ }; struct pci_conf_old { struct pcisel_old pc_sel; /* bus+slot+function */ u_int8_t pc_hdr; /* PCI header type */ u_int16_t pc_subvendor; /* card vendor ID */ u_int16_t pc_subdevice; /* card device ID, assigned by card vendor */ u_int16_t pc_vendor; /* chip vendor ID */ u_int16_t pc_device; /* chip device ID, assigned by chip vendor */ u_int8_t pc_class; /* chip PCI class */ u_int8_t pc_subclass; /* chip PCI subclass */ u_int8_t pc_progif; /* chip PCI programming interface */ u_int8_t pc_revid; /* chip revision ID */ char pd_name[PCI_MAXNAMELEN + 1]; /* device name */ u_long pd_unit; /* device unit number */ }; struct pci_match_conf_old { struct pcisel_old pc_sel; /* bus+slot+function */ char pd_name[PCI_MAXNAMELEN + 1]; /* device name */ u_long pd_unit; /* Unit number */ u_int16_t pc_vendor; /* PCI Vendor ID */ u_int16_t pc_device; /* PCI Device ID */ u_int8_t pc_class; /* PCI class */ pci_getconf_flags_old flags; /* Matching expression */ }; struct pci_io_old { struct pcisel_old pi_sel; /* device to operate on */ int pi_reg; /* configuration register to examine */ int pi_width; /* width (in bytes) of read or write */ u_int32_t pi_data; /* data to write or result of read */ }; #ifdef COMPAT_FREEBSD32 struct pci_conf_old32 { struct pcisel_old pc_sel; /* bus+slot+function */ uint8_t pc_hdr; /* PCI header type */ uint16_t pc_subvendor; /* card vendor ID */ uint16_t pc_subdevice; /* card device ID, assigned by card vendor */ uint16_t pc_vendor; /* chip vendor ID */ uint16_t pc_device; /* chip device ID, assigned by chip vendor */ uint8_t pc_class; /* chip PCI class */ uint8_t pc_subclass; /* chip PCI subclass */ uint8_t pc_progif; /* chip PCI programming interface */ uint8_t pc_revid; /* chip revision ID */ char pd_name[PCI_MAXNAMELEN + 1]; /* device name */ uint32_t pd_unit; /* device unit number (u_long) */ }; struct pci_match_conf_old32 { struct pcisel_old pc_sel; /* bus+slot+function */ char pd_name[PCI_MAXNAMELEN + 1]; /* device name */ uint32_t pd_unit; /* Unit number (u_long) */ uint16_t pc_vendor; /* PCI Vendor ID */ uint16_t pc_device; /* PCI Device ID */ uint8_t pc_class; /* PCI class */ pci_getconf_flags_old flags; /* Matching expression */ }; struct pci_conf_io32 { uint32_t pat_buf_len; /* pattern buffer length */ uint32_t num_patterns; /* number of patterns */ uint32_t patterns; /* pattern buffer (struct pci_match_conf_old32 *) */ uint32_t match_buf_len; /* match buffer length */ uint32_t num_matches; /* number of matches returned */ uint32_t matches; /* match buffer (struct pci_conf_old32 *) */ uint32_t offset; /* offset into device list */ uint32_t generation; /* device list generation */ pci_getconf_status status; /* request status */ }; #define PCIOCGETCONF_OLD32 _IOWR('p', 1, struct pci_conf_io32) #endif /* COMPAT_FREEBSD32 */ #define PCIOCGETCONF_OLD _IOWR('p', 1, struct pci_conf_io) #define PCIOCREAD_OLD _IOWR('p', 2, struct pci_io_old) #define PCIOCWRITE_OLD _IOWR('p', 3, struct pci_io_old) -static int pci_conf_match_old(struct pci_match_conf_old *matches, - int num_matches, struct pci_conf *match_buf); - static int pci_conf_match_old(struct pci_match_conf_old *matches, int num_matches, struct pci_conf *match_buf) { int i; if ((matches == NULL) || (match_buf == NULL) || (num_matches <= 0)) return(1); for (i = 0; i < num_matches; i++) { if (match_buf->pc_sel.pc_domain != 0) continue; /* * I'm not sure why someone would do this...but... */ if (matches[i].flags == PCI_GETCONF_NO_MATCH_OLD) continue; /* * Look at each of the match flags. If it's set, do the * comparison. If the comparison fails, we don't have a * match, go on to the next item if there is one. */ if (((matches[i].flags & PCI_GETCONF_MATCH_BUS_OLD) != 0) && (match_buf->pc_sel.pc_bus != matches[i].pc_sel.pc_bus)) continue; if (((matches[i].flags & PCI_GETCONF_MATCH_DEV_OLD) != 0) && (match_buf->pc_sel.pc_dev != matches[i].pc_sel.pc_dev)) continue; if (((matches[i].flags & PCI_GETCONF_MATCH_FUNC_OLD) != 0) && (match_buf->pc_sel.pc_func != matches[i].pc_sel.pc_func)) continue; if (((matches[i].flags & PCI_GETCONF_MATCH_VENDOR_OLD) != 0) && (match_buf->pc_vendor != matches[i].pc_vendor)) continue; if (((matches[i].flags & PCI_GETCONF_MATCH_DEVICE_OLD) != 0) && (match_buf->pc_device != matches[i].pc_device)) continue; if (((matches[i].flags & PCI_GETCONF_MATCH_CLASS_OLD) != 0) && (match_buf->pc_class != matches[i].pc_class)) continue; if (((matches[i].flags & PCI_GETCONF_MATCH_UNIT_OLD) != 0) && (match_buf->pd_unit != matches[i].pd_unit)) continue; if (((matches[i].flags & PCI_GETCONF_MATCH_NAME_OLD) != 0) && (strncmp(matches[i].pd_name, match_buf->pd_name, sizeof(match_buf->pd_name)) != 0)) continue; return(0); } return(1); } #ifdef COMPAT_FREEBSD32 static int pci_conf_match_old32(struct pci_match_conf_old32 *matches, int num_matches, struct pci_conf *match_buf) { int i; if ((matches == NULL) || (match_buf == NULL) || (num_matches <= 0)) return(1); for (i = 0; i < num_matches; i++) { if (match_buf->pc_sel.pc_domain != 0) continue; /* * I'm not sure why someone would do this...but... */ if (matches[i].flags == PCI_GETCONF_NO_MATCH_OLD) continue; /* * Look at each of the match flags. If it's set, do the * comparison. If the comparison fails, we don't have a * match, go on to the next item if there is one. */ if (((matches[i].flags & PCI_GETCONF_MATCH_BUS_OLD) != 0) && (match_buf->pc_sel.pc_bus != matches[i].pc_sel.pc_bus)) continue; if (((matches[i].flags & PCI_GETCONF_MATCH_DEV_OLD) != 0) && (match_buf->pc_sel.pc_dev != matches[i].pc_sel.pc_dev)) continue; if (((matches[i].flags & PCI_GETCONF_MATCH_FUNC_OLD) != 0) && (match_buf->pc_sel.pc_func != matches[i].pc_sel.pc_func)) continue; if (((matches[i].flags & PCI_GETCONF_MATCH_VENDOR_OLD) != 0) && (match_buf->pc_vendor != matches[i].pc_vendor)) continue; if (((matches[i].flags & PCI_GETCONF_MATCH_DEVICE_OLD) != 0) && (match_buf->pc_device != matches[i].pc_device)) continue; if (((matches[i].flags & PCI_GETCONF_MATCH_CLASS_OLD) != 0) && (match_buf->pc_class != matches[i].pc_class)) continue; if (((matches[i].flags & PCI_GETCONF_MATCH_UNIT_OLD) != 0) && ((u_int32_t)match_buf->pd_unit != matches[i].pd_unit)) continue; if (((matches[i].flags & PCI_GETCONF_MATCH_NAME_OLD) != 0) && (strncmp(matches[i].pd_name, match_buf->pd_name, sizeof(match_buf->pd_name)) != 0)) continue; return (0); } return (1); } #endif /* COMPAT_FREEBSD32 */ -#endif /* PRE7_COMPAT */ +#endif /* !PRE7_COMPAT */ +union pci_conf_union { + struct pci_conf pc; +#ifdef PRE7_COMPAT + struct pci_conf_old pco; +#ifdef COMPAT_FREEBSD32 + struct pci_conf_old32 pco32; +#endif +#endif +}; + static int +pci_conf_match(u_long cmd, struct pci_match_conf *matches, int num_matches, + struct pci_conf *match_buf) +{ + + switch (cmd) { + case PCIOCGETCONF: + return (pci_conf_match_native( + (struct pci_match_conf *)matches, num_matches, match_buf)); +#ifdef PRE7_COMPAT + case PCIOCGETCONF_OLD: + return (pci_conf_match_old( + (struct pci_match_conf_old *)matches, num_matches, + match_buf)); +#ifdef COMPAT_FREEBSD32 + case PCIOCGETCONF_OLD32: + return (pci_conf_match_old32( + (struct pci_match_conf_old32 *)matches, num_matches, + match_buf)); +#endif +#endif + default: + /* programmer error */ + return (0); + } +} + +static int pci_list_vpd(device_t dev, struct pci_list_vpd_io *lvio) { struct pci_vpd_element vpd_element, *vpd_user; struct pcicfg_vpd *vpd; size_t len; int error, i; vpd = pci_fetch_vpd_list(dev); if (vpd->vpd_reg == 0 || vpd->vpd_ident == NULL) return (ENXIO); /* * Calculate the amount of space needed in the data buffer. An * identifier element is always present followed by the read-only * and read-write keywords. */ len = sizeof(struct pci_vpd_element) + strlen(vpd->vpd_ident); for (i = 0; i < vpd->vpd_rocnt; i++) len += sizeof(struct pci_vpd_element) + vpd->vpd_ros[i].len; for (i = 0; i < vpd->vpd_wcnt; i++) len += sizeof(struct pci_vpd_element) + vpd->vpd_w[i].len; if (lvio->plvi_len == 0) { lvio->plvi_len = len; return (0); } if (lvio->plvi_len < len) { lvio->plvi_len = len; return (ENOMEM); } /* * Copyout the identifier string followed by each keyword and * value. */ vpd_user = lvio->plvi_data; vpd_element.pve_keyword[0] = '\0'; vpd_element.pve_keyword[1] = '\0'; vpd_element.pve_flags = PVE_FLAG_IDENT; vpd_element.pve_datalen = strlen(vpd->vpd_ident); error = copyout(&vpd_element, vpd_user, sizeof(vpd_element)); if (error) return (error); error = copyout(vpd->vpd_ident, vpd_user->pve_data, strlen(vpd->vpd_ident)); if (error) return (error); vpd_user = PVE_NEXT(vpd_user); vpd_element.pve_flags = 0; for (i = 0; i < vpd->vpd_rocnt; i++) { vpd_element.pve_keyword[0] = vpd->vpd_ros[i].keyword[0]; vpd_element.pve_keyword[1] = vpd->vpd_ros[i].keyword[1]; vpd_element.pve_datalen = vpd->vpd_ros[i].len; error = copyout(&vpd_element, vpd_user, sizeof(vpd_element)); if (error) return (error); error = copyout(vpd->vpd_ros[i].value, vpd_user->pve_data, vpd->vpd_ros[i].len); if (error) return (error); vpd_user = PVE_NEXT(vpd_user); } vpd_element.pve_flags = PVE_FLAG_RW; for (i = 0; i < vpd->vpd_wcnt; i++) { vpd_element.pve_keyword[0] = vpd->vpd_w[i].keyword[0]; vpd_element.pve_keyword[1] = vpd->vpd_w[i].keyword[1]; vpd_element.pve_datalen = vpd->vpd_w[i].len; error = copyout(&vpd_element, vpd_user, sizeof(vpd_element)); if (error) return (error); error = copyout(vpd->vpd_w[i].value, vpd_user->pve_data, vpd->vpd_w[i].len); if (error) return (error); vpd_user = PVE_NEXT(vpd_user); } KASSERT((char *)vpd_user - (char *)lvio->plvi_data == len, ("length mismatch")); lvio->plvi_len = len; return (0); } +static size_t +pci_match_conf_size(u_long cmd) +{ + + switch (cmd) { + case PCIOCGETCONF: + return (sizeof(struct pci_match_conf)); +#ifdef PRE7_COMPAT + case PCIOCGETCONF_OLD: + return (sizeof(struct pci_match_conf_old)); +#ifdef COMPAT_FREEBSD32 + case PCIOCGETCONF_OLD32: + return (sizeof(struct pci_match_conf_old32)); +#endif +#endif + default: + /* programmer error */ + return (0); + } +} + +static size_t +pci_conf_size(u_long cmd) +{ + + switch (cmd) { + case PCIOCGETCONF: + return (sizeof(struct pci_conf)); +#ifdef PRE7_COMPAT + case PCIOCGETCONF_OLD: + return (sizeof(struct pci_conf_old)); +#ifdef COMPAT_FREEBSD32 + case PCIOCGETCONF_OLD32: + return (sizeof(struct pci_conf_old32)); +#endif +#endif + default: + /* programmer error */ + return (0); + } +} + +static void +pci_conf_io_init(struct pci_conf_io *cio, caddr_t data, u_long cmd) +{ +#if defined(PRE7_COMPAT) && defined(COMPAT_FREEBSD32) + struct pci_conf_io32 *cio32; +#endif + + switch (cmd) { + case PCIOCGETCONF: +#ifdef PRE7_COMPAT + case PCIOCGETCONF_OLD: +#endif + *cio = *(struct pci_conf_io *)data; + return; + +#if defined(PRE7_COMPAT) && defined(COMPAT_FREEBSD32) + case PCIOCGETCONF_OLD32: + cio32 = (struct pci_conf_io32 *)data; + cio->pat_buf_len = cio32->pat_buf_len; + cio->num_patterns = cio32->num_patterns; + cio->patterns = (void *)(uintptr_t)cio32->patterns; + cio->match_buf_len = cio32->match_buf_len; + cio->num_matches = cio32->num_matches; + cio->matches = (void *)(uintptr_t)cio32->matches; + cio->offset = cio32->offset; + cio->generation = cio32->generation; + cio->status = cio32->status; + return; +#endif + + default: + /* programmer error */ + return; + } +} + +static void +pci_conf_io_update_data(const struct pci_conf_io *cio, caddr_t data, + u_long cmd) +{ + struct pci_conf_io *d_cio; +#if defined(PRE7_COMPAT) && defined(COMPAT_FREEBSD32) + struct pci_conf_io32 *cio32; +#endif + + switch (cmd) { + case PCIOCGETCONF: +#ifdef PRE7_COMPAT + case PCIOCGETCONF_OLD: +#endif + d_cio = (struct pci_conf_io *)data; + d_cio->status = cio->status; + d_cio->generation = cio->generation; + d_cio->offset = cio->offset; + d_cio->num_matches = cio->num_matches; + return; + +#if defined(PRE7_COMPAT) && defined(COMPAT_FREEBSD32) + case PCIOCGETCONF_OLD32: + cio32 = (struct pci_conf_io32 *)data; + + cio32->status = cio->status; + cio32->generation = cio->generation; + cio32->offset = cio->offset; + cio32->num_matches = cio->num_matches; + return; +#endif + + default: + /* programmer error */ + return; + } +} + +static void +pci_conf_for_copyout(const struct pci_conf *pcp, union pci_conf_union *pcup, + u_long cmd) +{ + + memset(pcup, 0, sizeof(*pcup)); + + switch (cmd) { + case PCIOCGETCONF: + pcup->pc = *pcp; + return; + +#ifdef PRE7_COMPAT +#ifdef COMPAT_FREEBSD32 + case PCIOCGETCONF_OLD32: + pcup->pco32.pc_sel.pc_bus = pcp->pc_sel.pc_bus; + pcup->pco32.pc_sel.pc_dev = pcp->pc_sel.pc_dev; + pcup->pco32.pc_sel.pc_func = pcp->pc_sel.pc_func; + pcup->pco32.pc_hdr = pcp->pc_hdr; + pcup->pco32.pc_subvendor = pcp->pc_subvendor; + pcup->pco32.pc_subdevice = pcp->pc_subdevice; + pcup->pco32.pc_vendor = pcp->pc_vendor; + pcup->pco32.pc_device = pcp->pc_device; + pcup->pco32.pc_class = pcp->pc_class; + pcup->pco32.pc_subclass = pcp->pc_subclass; + pcup->pco32.pc_progif = pcp->pc_progif; + pcup->pco32.pc_revid = pcp->pc_revid; + strlcpy(pcup->pco32.pd_name, pcp->pd_name, + sizeof(pcup->pco32.pd_name)); + pcup->pco32.pd_unit = (uint32_t)pcp->pd_unit; + return; + +#endif /* COMPAT_FREEBSD32 */ + case PCIOCGETCONF_OLD: + pcup->pco.pc_sel.pc_bus = pcp->pc_sel.pc_bus; + pcup->pco.pc_sel.pc_dev = pcp->pc_sel.pc_dev; + pcup->pco.pc_sel.pc_func = pcp->pc_sel.pc_func; + pcup->pco.pc_hdr = pcp->pc_hdr; + pcup->pco.pc_subvendor = pcp->pc_subvendor; + pcup->pco.pc_subdevice = pcp->pc_subdevice; + pcup->pco.pc_vendor = pcp->pc_vendor; + pcup->pco.pc_device = pcp->pc_device; + pcup->pco.pc_class = pcp->pc_class; + pcup->pco.pc_subclass = pcp->pc_subclass; + pcup->pco.pc_progif = pcp->pc_progif; + pcup->pco.pc_revid = pcp->pc_revid; + strlcpy(pcup->pco.pd_name, pcp->pd_name, + sizeof(pcup->pco.pd_name)); + pcup->pco.pd_unit = pcp->pd_unit; + return; +#endif /* PRE7_COMPAT */ + + default: + /* programmer error */ + return; + } +} + static int pci_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td) { device_t pcidev; - void *confdata; const char *name; struct devlist *devlist_head; struct pci_conf_io *cio = NULL; struct pci_devinfo *dinfo; struct pci_io *io; struct pci_bar_io *bio; struct pci_list_vpd_io *lvio; struct pci_match_conf *pattern_buf; struct pci_map *pm; - size_t confsz, iolen, pbufsz; + size_t confsz, iolen; int error, ionum, i, num_patterns; + union pci_conf_union pcu; #ifdef PRE7_COMPAT -#ifdef COMPAT_FREEBSD32 - struct pci_conf_io32 *cio32 = NULL; - struct pci_conf_old32 conf_old32; - struct pci_match_conf_old32 *pattern_buf_old32 = NULL; -#endif - struct pci_conf_old conf_old; struct pci_io iodata; struct pci_io_old *io_old; - struct pci_match_conf_old *pattern_buf_old = NULL; io_old = NULL; #endif if (!(flag & FWRITE)) { switch (cmd) { + case PCIOCGETCONF: #ifdef PRE7_COMPAT + case PCIOCGETCONF_OLD: #ifdef COMPAT_FREEBSD32 case PCIOCGETCONF_OLD32: #endif - case PCIOCGETCONF_OLD: #endif - case PCIOCGETCONF: case PCIOCGETBAR: case PCIOCLISTVPD: break; default: return (EPERM); } } - switch (cmd) { -#ifdef PRE7_COMPAT -#ifdef COMPAT_FREEBSD32 - case PCIOCGETCONF_OLD32: - cio32 = (struct pci_conf_io32 *)data; - cio = malloc(sizeof(struct pci_conf_io), M_TEMP, M_WAITOK); - cio->pat_buf_len = cio32->pat_buf_len; - cio->num_patterns = cio32->num_patterns; - cio->patterns = (void *)(uintptr_t)cio32->patterns; - cio->match_buf_len = cio32->match_buf_len; - cio->num_matches = cio32->num_matches; - cio->matches = (void *)(uintptr_t)cio32->matches; - cio->offset = cio32->offset; - cio->generation = cio32->generation; - cio->status = cio32->status; - cio32->num_matches = 0; - break; -#endif - case PCIOCGETCONF_OLD: -#endif - case PCIOCGETCONF: - cio = (struct pci_conf_io *)data; - } switch (cmd) { + case PCIOCGETCONF: #ifdef PRE7_COMPAT + case PCIOCGETCONF_OLD: #ifdef COMPAT_FREEBSD32 case PCIOCGETCONF_OLD32: #endif - case PCIOCGETCONF_OLD: #endif - case PCIOCGETCONF: - + cio = malloc(sizeof(struct pci_conf_io), M_TEMP, + M_WAITOK | M_ZERO); + pci_conf_io_init(cio, data, cmd); pattern_buf = NULL; num_patterns = 0; dinfo = NULL; cio->num_matches = 0; /* * If the user specified an offset into the device list, * but the list has changed since they last called this * ioctl, tell them that the list has changed. They will * have to get the list from the beginning. */ if ((cio->offset != 0) && (cio->generation != pci_generation)){ cio->status = PCI_GETCONF_LIST_CHANGED; error = 0; goto getconfexit; } /* * Check to see whether the user has asked for an offset * past the end of our list. */ if (cio->offset >= pci_numdevs) { cio->status = PCI_GETCONF_LAST_DEVICE; error = 0; goto getconfexit; } /* get the head of the device queue */ devlist_head = &pci_devq; /* * Determine how much room we have for pci_conf structures. * Round the user's buffer size down to the nearest * multiple of sizeof(struct pci_conf) in case the user * didn't specify a multiple of that size. */ -#ifdef PRE7_COMPAT -#ifdef COMPAT_FREEBSD32 - if (cmd == PCIOCGETCONF_OLD32) - confsz = sizeof(struct pci_conf_old32); - else -#endif - if (cmd == PCIOCGETCONF_OLD) - confsz = sizeof(struct pci_conf_old); - else -#endif - confsz = sizeof(struct pci_conf); + confsz = pci_conf_size(cmd); iolen = min(cio->match_buf_len - (cio->match_buf_len % confsz), pci_numdevs * confsz); /* * Since we know that iolen is a multiple of the size of * the pciconf union, it's okay to do this. */ ionum = iolen / confsz; /* * If this test is true, the user wants the pci_conf * structures returned to match the supplied entries. */ if ((cio->num_patterns > 0) && (cio->num_patterns < pci_numdevs) && (cio->pat_buf_len > 0)) { /* * pat_buf_len needs to be: * num_patterns * sizeof(struct pci_match_conf) * While it is certainly possible the user just * allocated a large buffer, but set the number of * matches correctly, it is far more likely that * their kernel doesn't match the userland utility * they're using. It's also possible that the user * forgot to initialize some variables. Yes, this * may be overly picky, but I hazard to guess that * it's far more likely to just catch folks that * updated their kernel but not their userland. */ -#ifdef PRE7_COMPAT -#ifdef COMPAT_FREEBSD32 - if (cmd == PCIOCGETCONF_OLD32) - pbufsz = sizeof(struct pci_match_conf_old32); - else -#endif - if (cmd == PCIOCGETCONF_OLD) - pbufsz = sizeof(struct pci_match_conf_old); - else -#endif - pbufsz = sizeof(struct pci_match_conf); - if (cio->num_patterns * pbufsz != cio->pat_buf_len) { + if (cio->num_patterns * pci_match_conf_size(cmd) != + cio->pat_buf_len) { /* The user made a mistake, return an error. */ cio->status = PCI_GETCONF_ERROR; error = EINVAL; goto getconfexit; } /* * Allocate a buffer to hold the patterns. */ -#ifdef PRE7_COMPAT -#ifdef COMPAT_FREEBSD32 - if (cmd == PCIOCGETCONF_OLD32) { - pattern_buf_old32 = malloc(cio->pat_buf_len, - M_TEMP, M_WAITOK); - error = copyin(cio->patterns, - pattern_buf_old32, cio->pat_buf_len); - } else -#endif /* COMPAT_FREEBSD32 */ - if (cmd == PCIOCGETCONF_OLD) { - pattern_buf_old = malloc(cio->pat_buf_len, - M_TEMP, M_WAITOK); - error = copyin(cio->patterns, - pattern_buf_old, cio->pat_buf_len); - } else -#endif /* PRE7_COMPAT */ - { - pattern_buf = malloc(cio->pat_buf_len, M_TEMP, - M_WAITOK); - error = copyin(cio->patterns, pattern_buf, - cio->pat_buf_len); - } + pattern_buf = malloc(cio->pat_buf_len, M_TEMP, + M_WAITOK); + error = copyin(cio->patterns, pattern_buf, + cio->pat_buf_len); if (error != 0) { error = EINVAL; goto getconfexit; } num_patterns = cio->num_patterns; } else if ((cio->num_patterns > 0) || (cio->pat_buf_len > 0)) { /* * The user made a mistake, spit out an error. */ cio->status = PCI_GETCONF_ERROR; error = EINVAL; goto getconfexit; } /* * Go through the list of devices and copy out the devices * that match the user's criteria. */ for (cio->num_matches = 0, i = 0, dinfo = STAILQ_FIRST(devlist_head); dinfo != NULL; dinfo = STAILQ_NEXT(dinfo, pci_links), i++) { if (i < cio->offset) continue; /* Populate pd_name and pd_unit */ name = NULL; if (dinfo->cfg.dev) name = device_get_name(dinfo->cfg.dev); if (name) { strncpy(dinfo->conf.pd_name, name, sizeof(dinfo->conf.pd_name)); dinfo->conf.pd_name[PCI_MAXNAMELEN] = 0; dinfo->conf.pd_unit = device_get_unit(dinfo->cfg.dev); } else { dinfo->conf.pd_name[0] = '\0'; dinfo->conf.pd_unit = 0; } -#ifdef PRE7_COMPAT - if ( -#ifdef COMPAT_FREEBSD32 - (cmd == PCIOCGETCONF_OLD32 && - (pattern_buf_old32 == NULL || - pci_conf_match_old32(pattern_buf_old32, - num_patterns, &dinfo->conf) == 0)) || -#endif - (cmd == PCIOCGETCONF_OLD && - (pattern_buf_old == NULL || - pci_conf_match_old(pattern_buf_old, num_patterns, - &dinfo->conf) == 0)) || - (cmd == PCIOCGETCONF && - (pattern_buf == NULL || - pci_conf_match(pattern_buf, num_patterns, - &dinfo->conf) == 0))) { -#else if (pattern_buf == NULL || - pci_conf_match(pattern_buf, num_patterns, + pci_conf_match(cmd, pattern_buf, num_patterns, &dinfo->conf) == 0) { -#endif /* * If we've filled up the user's buffer, * break out at this point. Since we've * got a match here, we'll pick right back * up at the matching entry. We can also * tell the user that there are more matches * left. */ if (cio->num_matches >= ionum) { error = 0; break; } -#ifdef PRE7_COMPAT -#ifdef COMPAT_FREEBSD32 - if (cmd == PCIOCGETCONF_OLD32) { - memset(&conf_old32, 0, - sizeof(conf_old32)); - conf_old32.pc_sel.pc_bus = - dinfo->conf.pc_sel.pc_bus; - conf_old32.pc_sel.pc_dev = - dinfo->conf.pc_sel.pc_dev; - conf_old32.pc_sel.pc_func = - dinfo->conf.pc_sel.pc_func; - conf_old32.pc_hdr = dinfo->conf.pc_hdr; - conf_old32.pc_subvendor = - dinfo->conf.pc_subvendor; - conf_old32.pc_subdevice = - dinfo->conf.pc_subdevice; - conf_old32.pc_vendor = - dinfo->conf.pc_vendor; - conf_old32.pc_device = - dinfo->conf.pc_device; - conf_old32.pc_class = - dinfo->conf.pc_class; - conf_old32.pc_subclass = - dinfo->conf.pc_subclass; - conf_old32.pc_progif = - dinfo->conf.pc_progif; - conf_old32.pc_revid = - dinfo->conf.pc_revid; - strncpy(conf_old32.pd_name, - dinfo->conf.pd_name, - sizeof(conf_old32.pd_name)); - conf_old32.pd_name[PCI_MAXNAMELEN] = 0; - conf_old32.pd_unit = - (uint32_t)dinfo->conf.pd_unit; - confdata = &conf_old32; - } else -#endif /* COMPAT_FREEBSD32 */ - if (cmd == PCIOCGETCONF_OLD) { - memset(&conf_old, 0, sizeof(conf_old)); - conf_old.pc_sel.pc_bus = - dinfo->conf.pc_sel.pc_bus; - conf_old.pc_sel.pc_dev = - dinfo->conf.pc_sel.pc_dev; - conf_old.pc_sel.pc_func = - dinfo->conf.pc_sel.pc_func; - conf_old.pc_hdr = dinfo->conf.pc_hdr; - conf_old.pc_subvendor = - dinfo->conf.pc_subvendor; - conf_old.pc_subdevice = - dinfo->conf.pc_subdevice; - conf_old.pc_vendor = - dinfo->conf.pc_vendor; - conf_old.pc_device = - dinfo->conf.pc_device; - conf_old.pc_class = - dinfo->conf.pc_class; - conf_old.pc_subclass = - dinfo->conf.pc_subclass; - conf_old.pc_progif = - dinfo->conf.pc_progif; - conf_old.pc_revid = - dinfo->conf.pc_revid; - strncpy(conf_old.pd_name, - dinfo->conf.pd_name, - sizeof(conf_old.pd_name)); - conf_old.pd_name[PCI_MAXNAMELEN] = 0; - conf_old.pd_unit = - dinfo->conf.pd_unit; - confdata = &conf_old; - } else -#endif /* PRE7_COMPAT */ - confdata = &dinfo->conf; - error = copyout(confdata, + pci_conf_for_copyout(&dinfo->conf, &pcu, cmd); + error = copyout(&pcu, (caddr_t)cio->matches + confsz * cio->num_matches, confsz); if (error) break; cio->num_matches++; } } /* * Set the pointer into the list, so if the user is getting * n records at a time, where n < pci_numdevs, */ cio->offset = i; /* * Set the generation, the user will need this if they make * another ioctl call with offset != 0. */ cio->generation = pci_generation; /* * If this is the last device, inform the user so he won't * bother asking for more devices. If dinfo isn't NULL, we * know that there are more matches in the list because of * the way the traversal is done. */ if (dinfo == NULL) cio->status = PCI_GETCONF_LAST_DEVICE; else cio->status = PCI_GETCONF_MORE_DEVS; getconfexit: -#ifdef PRE7_COMPAT -#ifdef COMPAT_FREEBSD32 - if (cmd == PCIOCGETCONF_OLD32) { - cio32->status = cio->status; - cio32->generation = cio->generation; - cio32->offset = cio->offset; - cio32->num_matches = cio->num_matches; - free(cio, M_TEMP); - } - if (pattern_buf_old32 != NULL) - free(pattern_buf_old32, M_TEMP); -#endif - if (pattern_buf_old != NULL) - free(pattern_buf_old, M_TEMP); -#endif - if (pattern_buf != NULL) - free(pattern_buf, M_TEMP); + pci_conf_io_update_data(cio, data, cmd); + free(cio, M_TEMP); + free(pattern_buf, M_TEMP); break; #ifdef PRE7_COMPAT case PCIOCREAD_OLD: case PCIOCWRITE_OLD: io_old = (struct pci_io_old *)data; iodata.pi_sel.pc_domain = 0; iodata.pi_sel.pc_bus = io_old->pi_sel.pc_bus; iodata.pi_sel.pc_dev = io_old->pi_sel.pc_dev; iodata.pi_sel.pc_func = io_old->pi_sel.pc_func; iodata.pi_reg = io_old->pi_reg; iodata.pi_width = io_old->pi_width; iodata.pi_data = io_old->pi_data; data = (caddr_t)&iodata; /* FALLTHROUGH */ #endif case PCIOCREAD: case PCIOCWRITE: io = (struct pci_io *)data; switch(io->pi_width) { case 4: case 2: case 1: /* Make sure register is not negative and aligned. */ if (io->pi_reg < 0 || io->pi_reg & (io->pi_width - 1)) { error = EINVAL; break; } /* * Assume that the user-level bus number is * in fact the physical PCI bus number. * Look up the grandparent, i.e. the bridge device, * so that we can issue configuration space cycles. */ pcidev = pci_find_dbsf(io->pi_sel.pc_domain, io->pi_sel.pc_bus, io->pi_sel.pc_dev, io->pi_sel.pc_func); if (pcidev) { #ifdef PRE7_COMPAT if (cmd == PCIOCWRITE || cmd == PCIOCWRITE_OLD) #else if (cmd == PCIOCWRITE) #endif pci_write_config(pcidev, io->pi_reg, io->pi_data, io->pi_width); #ifdef PRE7_COMPAT else if (cmd == PCIOCREAD_OLD) io_old->pi_data = pci_read_config(pcidev, io->pi_reg, io->pi_width); #endif else io->pi_data = pci_read_config(pcidev, io->pi_reg, io->pi_width); error = 0; } else { #ifdef COMPAT_FREEBSD4 if (cmd == PCIOCREAD_OLD) { io_old->pi_data = -1; error = 0; } else #endif error = ENODEV; } break; default: error = EINVAL; break; } break; case PCIOCGETBAR: bio = (struct pci_bar_io *)data; /* * Assume that the user-level bus number is * in fact the physical PCI bus number. */ pcidev = pci_find_dbsf(bio->pbi_sel.pc_domain, bio->pbi_sel.pc_bus, bio->pbi_sel.pc_dev, bio->pbi_sel.pc_func); if (pcidev == NULL) { error = ENODEV; break; } pm = pci_find_bar(pcidev, bio->pbi_reg); if (pm == NULL) { error = EINVAL; break; } bio->pbi_base = pm->pm_value; bio->pbi_length = (pci_addr_t)1 << pm->pm_size; bio->pbi_enabled = pci_bar_enabled(pcidev, pm); error = 0; break; case PCIOCATTACHED: error = 0; io = (struct pci_io *)data; pcidev = pci_find_dbsf(io->pi_sel.pc_domain, io->pi_sel.pc_bus, io->pi_sel.pc_dev, io->pi_sel.pc_func); if (pcidev != NULL) io->pi_data = device_is_attached(pcidev); else error = ENODEV; break; case PCIOCLISTVPD: lvio = (struct pci_list_vpd_io *)data; /* * Assume that the user-level bus number is * in fact the physical PCI bus number. */ pcidev = pci_find_dbsf(lvio->plvi_sel.pc_domain, lvio->plvi_sel.pc_bus, lvio->plvi_sel.pc_dev, lvio->plvi_sel.pc_func); if (pcidev == NULL) { error = ENODEV; break; } error = pci_list_vpd(pcidev, lvio); break; default: error = ENOTTY; break; } return (error); }