From e21aea08eb706939a38f7dc5cf9509a9afd45f8a Mon Sep 17 00:00:00 2001 From: Mariusz Tkaczyk Date: Thu, 29 Feb 2024 12:52:15 +0100 Subject: [PATCH 31/41] imsm: test_and_add_device_policies() implementation This patch removes get_disk_controller_domain_imsm() in favour of test_and_add_device_policies_imsm(). It is used by create, add and mdmonitor. Signed-off-by: Mariusz Tkaczyk --- platform-intel.h | 1 - super-intel.c | 123 ++++++++++++++++++++++++++++++++++------------- 2 files changed, 90 insertions(+), 34 deletions(-) diff --git a/platform-intel.h b/platform-intel.h index ce29d3da..3c2bc595 100644 --- a/platform-intel.h +++ b/platform-intel.h @@ -262,7 +262,6 @@ int disk_attached_to_hba(int fd, const char *hba_path); int devt_attached_to_hba(dev_t dev, const char *hba_path); char *devt_to_devpath(dev_t dev, int dev_level, char *buf); int path_attached_to_hba(const char *disk_path, const char *hba_path); -const char *get_sys_dev_type(enum sys_dev_type); const struct orom_entry *get_orom_entry_by_device_id(__u16 dev_id); const struct imsm_orom *get_orom_by_device_id(__u16 device_id); struct sys_dev *device_by_id(__u16 device_id); diff --git a/super-intel.c b/super-intel.c index 7ad391ac..77140455 100644 --- a/super-intel.c +++ b/super-intel.c @@ -11220,39 +11220,90 @@ abort: return retval; } -static char disk_by_path[] = "/dev/disk/by-path/"; - -static const char *imsm_get_disk_controller_domain(const char *path) -{ - char disk_path[PATH_MAX]; - char *drv=NULL; - struct stat st; - - strncpy(disk_path, disk_by_path, PATH_MAX); - strncat(disk_path, path, PATH_MAX - strlen(disk_path) - 1); - if (stat(disk_path, &st) == 0) { - struct sys_dev* hba; - char *path; - - path = devt_to_devpath(st.st_rdev, 1, NULL); - if (path == NULL) - return "unknown"; - hba = find_disk_attached_hba(-1, path); - if (hba && hba->type == SYS_DEV_SAS) - drv = "isci"; - else if (hba && (hba->type == SYS_DEV_SATA || hba->type == SYS_DEV_SATA_VMD)) - drv = "ahci"; - else if (hba && hba->type == SYS_DEV_VMD) - drv = "vmd"; - else if (hba && hba->type == SYS_DEV_NVME) - drv = "nvme"; - else - drv = "unknown"; - dprintf("path: %s hba: %s attached: %s\n", - path, (hba) ? hba->path : "NULL", drv); - free(path); +/** + * test_and_add_drive_controller_policy_imsm() - add disk controller to policies list. + * @type: Policy type to search on list. + * @pols: List of currently recorded policies. + * @disk_fd: File descriptor of the device to check. + * @hba: The hba disk is attached, could be NULL if verification is disabled. + * @verbose: verbose flag. + * + * IMSM cares about drive physical placement. If @hba is not set, it adds unknown policy. + * If there is no controller policy on pols we are free to add first one. If there is a policy then, + * new must be the same - no controller mixing allowed. + */ +static mdadm_status_t +test_and_add_drive_controller_policy_imsm(const char * const type, dev_policy_t **pols, int disk_fd, + struct sys_dev *hba, const int verbose) +{ + const char *controller_policy = get_sys_dev_type(SYS_DEV_UNKNOWN); + struct dev_policy *pol = pol_find(*pols, (char *)type); + char devname[MAX_RAID_SERIAL_LEN]; + + if (hba) + controller_policy = get_sys_dev_type(hba->type); + + if (!pol) { + pol_add(pols, (char *)type, (char *)controller_policy, "imsm"); + return MDADM_STATUS_SUCCESS; } - return drv; + + if (strcmp(pol->value, controller_policy) == 0) + return MDADM_STATUS_SUCCESS; + + fd2devname(disk_fd, devname); + pr_vrb("Intel(R) raid controller \"%s\" found for %s, but \"%s\" was detected earlier\n", + controller_policy, devname, pol->value); + pr_vrb("Disks under different controllers cannot be used, aborting\n"); + + return MDADM_STATUS_ERROR; +} + +struct imsm_drive_policy { + char *type; + mdadm_status_t (*test_and_add_drive_policy)(const char * const type, + struct dev_policy **pols, int disk_fd, + struct sys_dev *hba, const int verbose); +}; + +struct imsm_drive_policy imsm_policies[] = { + {"controller", test_and_add_drive_controller_policy_imsm}, +}; + +mdadm_status_t test_and_add_drive_policies_imsm(struct dev_policy **pols, int disk_fd, + const int verbose) +{ + struct imsm_drive_policy *imsm_pol; + struct sys_dev *hba = NULL; + char path[PATH_MAX]; + mdadm_status_t ret; + unsigned int i; + + /* If imsm platform verification is disabled, do not search for hba. */ + if (check_no_platform() != 1) { + if (!diskfd_to_devpath(disk_fd, 1, path)) { + pr_vrb("IMSM: Failed to retrieve device path by file descriptor.\n"); + return MDADM_STATUS_ERROR; + } + + hba = find_disk_attached_hba(disk_fd, path); + if (!hba) { + pr_vrb("IMSM: Failed to find hba for %s\n", path); + return MDADM_STATUS_ERROR; + } + } + + for (i = 0; i < ARRAY_SIZE(imsm_policies); i++) { + imsm_pol = &imsm_policies[i]; + + ret = imsm_pol->test_and_add_drive_policy(imsm_pol->type, pols, disk_fd, hba, + verbose); + if (ret != MDADM_STATUS_SUCCESS) + /* Inherit error code */ + return ret; + } + + return MDADM_STATUS_SUCCESS; } /** @@ -11280,6 +11331,7 @@ mdadm_status_t get_spare_criteria_imsm(struct supertype *st, char *mddev_path, if (mddev_path) { int fd = open(mddev_path, O_RDONLY); + mdadm_status_t rv; if (!is_fd_valid(fd)) return MDADM_STATUS_ERROR; @@ -11291,7 +11343,12 @@ mdadm_status_t get_spare_criteria_imsm(struct supertype *st, char *mddev_path, } free_superblock = true; } + + rv = mddev_test_and_add_drive_policies(st, &c->pols, fd, 0); close(fd); + + if (rv != MDADM_STATUS_SUCCESS) + goto out; } super = st->sb; @@ -13026,7 +13083,7 @@ struct superswitch super_imsm = { .update_subarray = update_subarray_imsm, .load_container = load_container_imsm, .default_geometry = default_geometry_imsm, - .get_disk_controller_domain = imsm_get_disk_controller_domain, + .test_and_add_drive_policies = test_and_add_drive_policies_imsm, .reshape_super = imsm_reshape_super, .manage_reshape = imsm_manage_reshape, .recover_backup = recover_backup_imsm, -- 2.40.1