#include <sys/mman.h>
#include <sys/types.h>
#include <sys/stat.h>
+#include <limits.h>
+
+
+static int devpath_to_ll(const char *dev_path, const char *entry,
+ unsigned long long *val);
+
+static __u16 devpath_to_vendor(const char *dev_path);
void free_sys_dev(struct sys_dev **list)
{
struct sys_dev *head = NULL;
struct sys_dev *list = NULL;
enum sys_dev_type type;
+ unsigned long long dev_id;
if (strcmp(driver, "isci") == 0)
type = SYS_DEV_SAS;
if (devpath_to_vendor(path) != 0x8086)
continue;
+ if (devpath_to_ll(path, "device", &dev_id) != 0)
+ continue;
+
/* start / add list entry */
if (!head) {
head = malloc(sizeof(*head));
break;
}
+ list->dev_id = (__u16) dev_id;
list->type = type;
list->path = canonicalize_file_name(path);
list->next = NULL;
return head;
}
-__u16 devpath_to_vendor(const char *dev_path)
+
+static struct sys_dev *intel_devices=NULL;
+
+static enum sys_dev_type device_type_by_id(__u16 device_id)
+{
+ struct sys_dev *iter;
+
+ for(iter = intel_devices; iter != NULL; iter = iter->next)
+ if (iter->dev_id == device_id)
+ return iter->type;
+ return SYS_DEV_UNKNOWN;
+}
+
+static int devpath_to_ll(const char *dev_path, const char *entry, unsigned long long *val)
+{
+ char path[strlen(dev_path) + strlen(entry) + 2];
+ int fd;
+ int n;
+
+ sprintf(path, "%s/%s", dev_path, entry);
+
+ fd = open(path, O_RDONLY);
+ if (fd < 0)
+ return -1;
+ n = sysfs_fd_get_ll(fd, val);
+ close(fd);
+ return n;
+}
+
+
+static __u16 devpath_to_vendor(const char *dev_path)
{
char path[strlen(dev_path) + strlen("/vendor") + 1];
char vendor[7];
return ahci;
}
-static int platform_has_intel_devices(void)
-{
- struct sys_dev *devices;
- devices = find_intel_devices();
- if (devices) {
- free_sys_dev(&devices);
- return 1;
- }
- return 0;
-}
-
/*
- * PCI Expansion ROM Data Structure Format
- */
+ * PCI Expansion ROM Data Structure Format */
struct pciExpDataStructFormat {
__u8 ver[4];
__u16 vendorID;
__u16 deviceID;
} __attribute__ ((packed));
-static struct imsm_orom imsm_orom;
+static struct imsm_orom imsm_orom[SYS_DEV_MAX];
+static int populated_orom[SYS_DEV_MAX];
+
static int scan(const void *start, const void *end, const void *data)
{
int offset;
const struct imsm_orom *imsm_mem;
+ int dev;
int len = (end - start);
struct pciExpDataStructFormat *ptr= (struct pciExpDataStructFormat *)data;
+ if (data + 0x18 > end) {
+ dprintf("cannot find pciExpDataStruct \n");
+ return 0;
+ }
+
dprintf("ptr->vendorID: %lx __le16_to_cpu(ptr->deviceID): %lx \n",
(ulong) __le16_to_cpu(ptr->vendorID),
(ulong) __le16_to_cpu(ptr->deviceID));
- if (!((__le16_to_cpu(ptr->vendorID) == 0x8086) &&
- (__le16_to_cpu(ptr->deviceID) == 0x2822)))
+ if (__le16_to_cpu(ptr->vendorID) == 0x8086) {
+ /* serach attached intel devices by device id from OROM */
+ dev = device_type_by_id(__le16_to_cpu(ptr->deviceID));
+ if (dev == SYS_DEV_UNKNOWN)
+ return 0;
+ }
+ else
return 0;
for (offset = 0; offset < len; offset += 4) {
imsm_mem = start + offset;
- if (memcmp(imsm_mem->signature, "$VER", 4) == 0) {
- imsm_orom = *imsm_mem;
- return 1;
+ if ((memcmp(imsm_mem->signature, "$VER", 4) == 0)) {
+ imsm_orom[dev] = *imsm_mem;
+ populated_orom[dev] = 1;
+ return populated_orom[SYS_DEV_SATA] && populated_orom[SYS_DEV_SAS];
}
}
return 0;
}
-const struct imsm_orom *find_imsm_orom(void)
-{
- static int populated = 0;
- unsigned long align;
- /* it's static data so we only need to read it once */
- if (populated)
- return &imsm_orom;
-
- if (check_env("IMSM_TEST_OROM")) {
- memset(&imsm_orom, 0, sizeof(imsm_orom));
- imsm_orom.rlc = IMSM_OROM_RLC_RAID0 | IMSM_OROM_RLC_RAID1 |
+const struct imsm_orom *imsm_platform_test(enum sys_dev_type hba_id, int *populated,
+ struct imsm_orom *imsm_orom)
+{
+ memset(imsm_orom, 0, sizeof(*imsm_orom));
+ imsm_orom->rlc = IMSM_OROM_RLC_RAID0 | IMSM_OROM_RLC_RAID1 |
IMSM_OROM_RLC_RAID10 | IMSM_OROM_RLC_RAID5;
- imsm_orom.sss = IMSM_OROM_SSS_4kB | IMSM_OROM_SSS_8kB |
+ imsm_orom->sss = IMSM_OROM_SSS_4kB | IMSM_OROM_SSS_8kB |
IMSM_OROM_SSS_16kB | IMSM_OROM_SSS_32kB |
IMSM_OROM_SSS_64kB | IMSM_OROM_SSS_128kB |
IMSM_OROM_SSS_256kB | IMSM_OROM_SSS_512kB |
IMSM_OROM_SSS_1MB | IMSM_OROM_SSS_2MB;
- imsm_orom.dpa = 6;
- imsm_orom.tds = 6;
- imsm_orom.vpa = 2;
- imsm_orom.vphba = 4;
- imsm_orom.attr = imsm_orom.rlc | IMSM_OROM_ATTR_ChecksumVerify;
- populated = 1;
- return &imsm_orom;
+ imsm_orom->dpa = IMSM_OROM_DISKS_PER_ARRAY;
+ imsm_orom->tds = IMSM_OROM_TOTAL_DISKS;
+ imsm_orom->vpa = IMSM_OROM_VOLUMES_PER_ARRAY;
+ imsm_orom->vphba = IMSM_OROM_VOLUMES_PER_HBA;
+ imsm_orom->attr = imsm_orom->rlc | IMSM_OROM_ATTR_ChecksumVerify;
+ *populated = 1;
+
+ if (check_env("IMSM_TEST_OROM_NORAID5")) {
+ imsm_orom->rlc = IMSM_OROM_RLC_RAID0 | IMSM_OROM_RLC_RAID1 |
+ IMSM_OROM_RLC_RAID10;
+ }
+ if (check_env("IMSM_TEST_AHCI_EFI_NORAID5") && (hba_id == SYS_DEV_SAS)) {
+ imsm_orom->rlc = IMSM_OROM_RLC_RAID0 | IMSM_OROM_RLC_RAID1 |
+ IMSM_OROM_RLC_RAID10;
+ }
+ if (check_env("IMSM_TEST_SCU_EFI_NORAID5") && (hba_id == SYS_DEV_SATA)) {
+ imsm_orom->rlc = IMSM_OROM_RLC_RAID0 | IMSM_OROM_RLC_RAID1 |
+ IMSM_OROM_RLC_RAID10;
}
- if (!platform_has_intel_devices())
+ return imsm_orom;
+}
+
+
+
+static const struct imsm_orom *find_imsm_hba_orom(enum sys_dev_type hba_id)
+{
+ unsigned long align;
+
+ if (hba_id >= SYS_DEV_MAX)
+ return NULL;
+
+ /* it's static data so we only need to read it once */
+ if (populated_orom[hba_id]) {
+ dprintf("OROM CAP: %p, pid: %d pop: %d\n",
+ &imsm_orom[hba_id], (int) getpid(), populated_orom[hba_id]);
+ return &imsm_orom[hba_id];
+ }
+ if (check_env("IMSM_TEST_OROM")) {
+ dprintf("OROM CAP: %p, pid: %d pop: %d\n",
+ &imsm_orom[hba_id], (int) getpid(), populated_orom[hba_id]);
+ return imsm_platform_test(hba_id, &populated_orom[hba_id], &imsm_orom[hba_id]);
+ }
+ /* return empty OROM capabilities in EFI test mode */
+ if (check_env("IMSM_TEST_AHCI_EFI") ||
+ check_env("IMSM_TEST_SCU_EFI"))
+ return NULL;
+
+
+ if (intel_devices != NULL)
+ free_sys_dev(&intel_devices);
+
+ intel_devices = find_intel_devices();
+
+ if (intel_devices == NULL)
return NULL;
/* scan option-rom memory looking for an imsm signature */
if (probe_roms_init(align) != 0)
return NULL;
probe_roms();
- populated = scan_adapter_roms(scan);
+ /* ignore return value - True is returned if both adapater roms are found */
+ scan_adapter_roms(scan);
probe_roms_exit();
- if (populated)
- return &imsm_orom;
+ if (intel_devices != NULL)
+ free_sys_dev(&intel_devices);
+ intel_devices = NULL;
+
+ if (populated_orom[hba_id])
+ return &imsm_orom[hba_id];
+ return NULL;
+}
+
+#define GUID_STR_MAX 37 /* according to GUID format:
+ * xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx" */
+
+#define EFI_GUID(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \
+((struct efi_guid) \
+{{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
+ (b) & 0xff, ((b) >> 8) & 0xff, \
+ (c) & 0xff, ((c) >> 8) & 0xff, \
+ (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})
+
+
+#define SYS_EFI_VAR_PATH "/sys/firmware/efi/vars"
+#define SCU_PROP "RstScuV"
+#define AHCI_PROP "RstSataV"
+
+#define VENDOR_GUID \
+ EFI_GUID(0x193dfefa, 0xa445, 0x4302, 0x99, 0xd8, 0xef, 0x3a, 0xad, 0x1a, 0x04, 0xc6)
+
+int populated_efi[SYS_DEV_MAX] = { 0, 0 };
+
+static struct imsm_orom imsm_efi[SYS_DEV_MAX];
+
+int read_efi_variable(void *buffer, ssize_t buf_size, char *variable_name, struct efi_guid guid)
+{
+ char path[PATH_MAX];
+ char buf[GUID_STR_MAX];
+ int dfd;
+ ssize_t n, var_data_len;
+
+ snprintf(path, PATH_MAX, "%s/%s-%s/size", SYS_EFI_VAR_PATH, variable_name, guid_str(buf, guid));
+
+ dprintf("EFI VAR: path=%s\n", path);
+ /* get size of variable data */
+ dfd = open(path, O_RDONLY);
+ if (dfd < 0)
+ return 1;
+
+ n = read(dfd, &buf, sizeof(buf));
+ close(dfd);
+ if (n < 0)
+ return 1;
+ buf[n] = '\0';
+
+ errno = 0;
+ var_data_len = strtoul(buf, NULL, 16);
+ if ((errno == ERANGE && (var_data_len == LONG_MAX))
+ || (errno != 0 && var_data_len == 0))
+ return 1;
+
+ /* get data */
+ snprintf(path, PATH_MAX, "%s/%s-%s/data", SYS_EFI_VAR_PATH, variable_name, guid_str(buf, guid));
+
+ dprintf("EFI VAR: path=%s\n", path);
+ dfd = open(path, O_RDONLY);
+ if (dfd < 0)
+ return 1;
+
+ n = read(dfd, buffer, buf_size);
+ close(dfd);
+ if (n != var_data_len || n < buf_size) {
+ return 1;
+ }
+
+ return 0;
+}
+
+const struct imsm_orom *find_imsm_efi(enum sys_dev_type hba_id)
+{
+ if (hba_id >= SYS_DEV_MAX)
+ return NULL;
+
+ dprintf("EFI CAP: %p, pid: %d pop: %d\n",
+ &imsm_efi[hba_id], (int) getpid(), populated_efi[hba_id]);
+
+ /* it's static data so we only need to read it once */
+ if (populated_efi[hba_id]) {
+ dprintf("EFI CAP: %p, pid: %d pop: %d\n",
+ &imsm_efi[hba_id], (int) getpid(), populated_efi[hba_id]);
+ return &imsm_efi[hba_id];
+ }
+ if (check_env("IMSM_TEST_AHCI_EFI") ||
+ check_env("IMSM_TEST_SCU_EFI")) {
+ dprintf("OROM CAP: %p, pid: %d pop: %d\n",
+ &imsm_efi[hba_id], (int) getpid(), populated_efi[hba_id]);
+ return imsm_platform_test(hba_id, &populated_efi[hba_id], &imsm_efi[hba_id]);
+ }
+ /* OROM test is set, return that there is no EFI capabilities */
+ if (check_env("IMSM_TEST_OROM"))
+ return NULL;
+
+ if (read_efi_variable(&imsm_efi[hba_id], sizeof(imsm_efi[0]), hba_id == SYS_DEV_SAS ? SCU_PROP : AHCI_PROP, VENDOR_GUID)) {
+ populated_efi[hba_id] = 0;
+ return NULL;
+ }
+
+ populated_efi[hba_id] = 1;
+ return &imsm_efi[hba_id];
+}
+
+/*
+ * backward interface compatibility
+ */
+const struct imsm_orom *find_imsm_orom(void)
+{
+ return find_imsm_hba_orom(SYS_DEV_SATA);
+}
+
+const struct imsm_orom *find_imsm_capability(enum sys_dev_type hba_id)
+{
+ const struct imsm_orom *cap=NULL;
+
+
+ if ((cap = find_imsm_efi(hba_id)) != NULL)
+ return cap;
+ if ((cap = find_imsm_hba_orom(hba_id)) != NULL)
+ return cap;
return NULL;
}
{
int rc;
+ if (check_env("IMSM_TEST_AHCI_DEV") ||
+ check_env("IMSM_TEST_SCU_DEV")) {
+ return 1;
+ }
+
if (!disk_path || !hba_path)
return 0;
dprintf("hba: %s - disk: %s\n", hba_path, disk_path);
projects / thirdparty / mdadm.git / blobdiff