From mboxrd@z Thu Jan 1 00:00:00 1970 From: James Simmons Date: Thu, 27 Feb 2020 16:09:23 -0500 Subject: [lustre-devel] [PATCH 095/622] lnet: print recovery queues content In-Reply-To: <1582838290-17243-1-git-send-email-jsimmons@infradead.org> References: <1582838290-17243-1-git-send-email-jsimmons@infradead.org> Message-ID: <1582838290-17243-96-git-send-email-jsimmons@infradead.org> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: lustre-devel@lists.lustre.org From: Amir Shehata Add commands to lnetctl to print recovery queues content from user space. Associated code to handle the IOCTL added in LNet module. for local NIs: lnetctl debug recovery --local for peer NIs: lnetctl debug recovery --peer WC-bug-id: https://jira.whamcloud.com/browse/LU-9120 Lustre-commit: 826ea19c077b ("LU-9120 lnet: print recovery queues content") Signed-off-by: Amir Shehata Reviewed-on: https://review.whamcloud.com/32950 Reviewed-by: Sonia Sharma Reviewed-by: Olaf Weber Signed-off-by: James Simmons --- include/uapi/linux/lnet/libcfs_ioctl.h | 3 +- include/uapi/linux/lnet/lnet-dlc.h | 8 +++++ net/lnet/lnet/api-ni.c | 53 ++++++++++++++++++++++++++++++++++ 3 files changed, 63 insertions(+), 1 deletion(-) diff --git a/include/uapi/linux/lnet/libcfs_ioctl.h b/include/uapi/linux/lnet/libcfs_ioctl.h index 683d508..dfb73f7 100644 --- a/include/uapi/linux/lnet/libcfs_ioctl.h +++ b/include/uapi/linux/lnet/libcfs_ioctl.h @@ -150,6 +150,7 @@ struct libcfs_debug_ioctl_data { #define IOC_LIBCFS_GET_LOCAL_NI_MSG_STATS _IOWR(IOC_LIBCFS_TYPE, 101, IOCTL_CONFIG_SIZE) #define IOC_LIBCFS_SET_HEALHV _IOWR(IOC_LIBCFS_TYPE, 102, IOCTL_CONFIG_SIZE) #define IOC_LIBCFS_GET_LOCAL_HSTATS _IOWR(IOC_LIBCFS_TYPE, 103, IOCTL_CONFIG_SIZE) -#define IOC_LIBCFS_MAX_NR 103 +#define IOC_LIBCFS_GET_RECOVERY_QUEUE _IOWR(IOC_LIBCFS_TYPE, 104, IOCTL_CONFIG_SIZE) +#define IOC_LIBCFS_MAX_NR 104 #endif /* __LIBCFS_IOCTL_H__ */ diff --git a/include/uapi/linux/lnet/lnet-dlc.h b/include/uapi/linux/lnet/lnet-dlc.h index 8e9850c..87f7680 100644 --- a/include/uapi/linux/lnet/lnet-dlc.h +++ b/include/uapi/linux/lnet/lnet-dlc.h @@ -35,6 +35,7 @@ #define MAX_NUM_SHOW_ENTRIES 32 #define LNET_MAX_STR_LEN 128 #define LNET_MAX_SHOW_NUM_CPT 128 +#define LNET_MAX_SHOW_NUM_NID 128 #define LNET_UNDEFINED_HOPS ((__u32)(-1)) /* @@ -263,6 +264,13 @@ struct lnet_ioctl_reset_health_cfg { lnet_nid_t rh_nid; }; +struct lnet_ioctl_recovery_list { + struct libcfs_ioctl_hdr rlst_hdr; + enum lnet_health_type rlst_type; + int rlst_num_nids; + lnet_nid_t rlst_nid_array[LNET_MAX_SHOW_NUM_NID]; +}; + struct lnet_ioctl_set_value { struct libcfs_ioctl_hdr sv_hdr; __u32 sv_value; diff --git a/net/lnet/lnet/api-ni.c b/net/lnet/lnet/api-ni.c index d58006d..07bc29f 100644 --- a/net/lnet/lnet/api-ni.c +++ b/net/lnet/lnet/api-ni.c @@ -3232,6 +3232,44 @@ u32 lnet_get_dlc_seq_locked(void) return rc; } +static int +lnet_get_local_ni_recovery_list(struct lnet_ioctl_recovery_list *list) +{ + struct lnet_ni *ni; + int i = 0; + + lnet_net_lock(LNET_LOCK_EX); + list_for_each_entry(ni, &the_lnet.ln_mt_localNIRecovq, ni_recovery) { + list->rlst_nid_array[i] = ni->ni_nid; + i++; + if (i >= LNET_MAX_SHOW_NUM_NID) + break; + } + lnet_net_unlock(LNET_LOCK_EX); + list->rlst_num_nids = i; + + return 0; +} + +static int +lnet_get_peer_ni_recovery_list(struct lnet_ioctl_recovery_list *list) +{ + struct lnet_peer_ni *lpni; + int i = 0; + + lnet_net_lock(LNET_LOCK_EX); + list_for_each_entry(lpni, &the_lnet.ln_mt_peerNIRecovq, lpni_recovery) { + list->rlst_nid_array[i] = lpni->lpni_nid; + i++; + if (i >= LNET_MAX_SHOW_NUM_NID) + break; + } + lnet_net_unlock(LNET_LOCK_EX); + list->rlst_num_nids = i; + + return 0; +} + /** * LNet ioctl handler. * @@ -3452,6 +3490,21 @@ u32 lnet_get_dlc_seq_locked(void) return rc; } + case IOC_LIBCFS_GET_RECOVERY_QUEUE: { + struct lnet_ioctl_recovery_list *list = arg; + + if (list->rlst_hdr.ioc_len < sizeof(*list)) + return -EINVAL; + + mutex_lock(&the_lnet.ln_api_mutex); + if (list->rlst_type == LNET_HEALTH_TYPE_LOCAL_NI) + rc = lnet_get_local_ni_recovery_list(list); + else + rc = lnet_get_peer_ni_recovery_list(list); + mutex_unlock(&the_lnet.ln_api_mutex); + return rc; + } + case IOC_LIBCFS_ADD_PEER_NI: { struct lnet_ioctl_peer_cfg *cfg = arg; -- 1.8.3.1