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open-fcoe
fcoe-utils-beta1-update
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File fcoe-utils-beta1-update of Package open-fcoe
From c3777607d9721d439d23fa51547744f3eb8a275b Mon Sep 17 00:00:00 2001 From: Hannes Reinecke <hare@suse.de> Date: Fri, 4 Dec 2009 11:49:10 +0100 Subject: [PATCH] Update fcoe userspace programs This patchset is an update for the fcoe userspace programs. Should be avialable from the main git repository shortly. References: bnc#557495,FATE306854 Signed-off-by: Hannes Reinecke <hare@suse.de> diff --git a/etc/initd/initd.fedora b/etc/initd/initd.fedora index 629fc76..7107566 100755 --- a/etc/initd/initd.fedora +++ b/etc/initd/initd.fedora @@ -148,42 +148,7 @@ service_start() modprobe -q libfc modprobe -q fcoe - HAS_DCB_IF="false" - for ifcfg_file in `ls $CONFIG_DIR/cfg-eth*` - do - ifname=`basename $ifcfg_file | cut -d"-" -f2` - . $ifcfg_file - [ "$FCOE_ENABLE" != "yes" ] && - [ "$FCOE_ENABLE" != "YES" ] && continue - - if [ "$DCB_REQUIRED" != "yes" ] && - [ "$DCB_REQUIRED" != "YES" ]; then - # - # DCB is not required, we nee to validate the - # link flow control of the Ethernet port - # - validate_link_flow_control $ifname - [ $? -ne 0 ] && continue - # - # Create the FCoE interface - # - $FCOEADM -c $ifname - else - # - # Configure the DCB for the Ethernet - # port if DCB is required - # - HAS_DCB_IF="true" - fi - done - - # - # If DCB-required Ethernet port exists, then start the fcoemon - # daemon to create the FCoE interfaces for these ports. - # - if [ "$HAS_DCB_IF" = "true" ]; then - daemon --pidfile ${PID_FILE} ${FCOEMON} ${FCOEMON_OPTS} - fi + daemon --pidfile ${PID_FILE} ${FCOEMON} ${FCOEMON_OPTS} return } diff --git a/fcoemon.c b/fcoemon.c index 96c59e6..8e3980b 100644 --- a/fcoemon.c +++ b/fcoemon.c @@ -38,12 +38,14 @@ #include <sys/queue.h> #include <sys/un.h> #include <sys/wait.h> +#include <sys/ioctl.h> #include <linux/sockios.h> #include <linux/if.h> #include <linux/if_arp.h> #include <linux/netlink.h> #include <linux/rtnetlink.h> #include <linux/ethtool.h> +#include <linux/if_vlan.h> #include <dcbd/dcb_types.h> #include <dcbd/dcbtool.h> /* for typedef cmd_status */ @@ -74,32 +76,40 @@ #define CLIF_NAME_PATH _PATH_VARRUN "dcbd/clif" #define CLIF_PID_FILE _PATH_VARRUN "fcoemon.pid" #define CLIF_LOCAL_SUN_PATH _PATH_TMP "fcoemon.dcbd.%d" -#define FCM_DCBD_TIMEOUT_USEC (10 * 1000 * 1000) /* 10 seconds */ -#define FCM_EVENT_TIMEOUT_USEC (500 * 1000) /* half a second */ +#define DCBD_CONNECT_TIMEOUT (10 * 1000 * 1000) /* 10 seconds */ +#define DCBD_CONNECT_RETRY_TIMEOUT (1 * 1000 * 1000) /* 1 seconds */ +#define DCBD_REQ_RETRY_TIMEOUT (200 * 1000) /* 0.2 seconds */ +#define DCBD_MAX_REQ_RETRIES 10 #define FCM_PING_REQ_LEN 1 /* byte-length of dcbd PING request */ #define FCM_PING_RSP_LEN 8 /* byte-length of dcbd PING response */ static char *fcoemon_version = \ - "fcoemon v1.0.7\n Copyright (c) 2009, Intel Corporation.\n"; + "fcoemon v1.0.8\n Copyright (c) 2009, Intel Corporation.\n"; /* * fcoe service configuration data * Note: These information are read in from the fcoe service * files in CONFIG_DIR */ -struct fcoe_port_config { - struct fcoe_port_config *next; - char ifname[IFNAMSIZ]; +struct fcoe_port { + struct fcoe_port *next; + + /* information from fcoe configuration files in CONFIG_DIR */ + char ifname[IFNAMSIZ]; /* netif on which fcoe i/f is created */ + char real_ifname[IFNAMSIZ]; /* underlying net ifname - e.g. if ifname + is a VLAN */ int fcoe_enable; int dcb_required; - int dcb_app_0_enable; - int dcb_app_0_willing; + + /* following track data required to manage FCoE interface state */ + u_int32_t action; /* current state */ + u_int32_t last_action; /* last action */ + int last_msg_type; /* last rtnetlink msg type received on if name */ }; -enum fcoeadm_action { - ADM_DESTROY = 0, - ADM_CREATE, - ADM_RESET +enum fcoeport_ifname { + FCP_CFG_IFNAME = 0, + FCP_REAL_IFNAME }; static u_int8_t fcm_def_qos_mask = FCM_DEFAULT_QOS_MASK; @@ -109,17 +119,15 @@ struct clif; /* for dcbtool.h only */ /* * Interact with DCB daemon. */ -static void fcm_event_timeout(void *); static void fcm_dcbd_timeout(void *); +static void fcm_dcbd_retry_timeout(void *); static void fcm_dcbd_disconnect(void); -static void fcm_dcbd_request(char *); +static int fcm_dcbd_request(char *); static void fcm_dcbd_rx(void *); -static void fcm_dcbd_ex(void *); -static void fcm_dcbd_next(void); static void fcm_dcbd_event(char *, size_t); static void fcm_dcbd_cmd_resp(char *, cmd_status); -static void fcm_dcbd_port_advance(struct fcm_fcoe *); -static void fcm_dcbd_setup(struct fcm_fcoe *, enum fcoeadm_action); +static void fcm_netif_advance(struct fcm_netif *); +static void fcm_fcoe_action(struct fcm_netif *, struct fcoe_port *); struct fcm_clif { int cl_fd; @@ -137,13 +145,14 @@ char *fcm_dcbd_cmd = CONFIG_DIR "/scripts/fcoeplumb"; /* Debugging routine */ static void print_errors(char *buf, int errors); -struct fcm_fcoe_head fcm_fcoe_head = TAILQ_HEAD_INITIALIZER(fcm_fcoe_head); +struct fcm_netif_head fcm_netif_head = TAILQ_HEAD_INITIALIZER(fcm_netif_head); static int fcm_link_socket; static int fcm_link_seq; static void fcm_link_recv(void *); static void fcm_link_getlink(void); static int fcm_link_buf_check(size_t); +static void clear_dcbd_info(struct fcm_netif *ff); /* * Table for getopt_long(3). @@ -260,8 +269,8 @@ static int fcm_read_config_files(void) char val[CONFIG_MAX_VAL_LEN + 1]; DIR *dir; struct dirent *dp; - struct fcoe_port_config *curr; - struct fcoe_port_config *next; + struct fcoe_port *curr; + struct fcoe_port *next; int rc; dir = opendir(CONFIG_DIR); @@ -280,63 +289,110 @@ static int fcm_read_config_files(void) rc = strncmp(dp->d_name, "cfg-", strlen("cfg-")); if (rc) continue; - next = (struct fcoe_port_config *) - calloc(1, sizeof(struct fcoe_port_config)); - if (!fcoe_config.port) { - fcoe_config.port = next; - curr = next; - } else { - curr->next = next; - curr = next; + next = (struct fcoe_port *) + calloc(1, sizeof(struct fcoe_port)); + + if (!next) { + FCM_LOG_ERR(errno, "failed to allocate fcoe_port %s", + dp->d_name); + continue; } - strncpy(curr->ifname, dp->d_name + 4, sizeof(curr->ifname)); + strncpy(next->ifname, dp->d_name + 4, sizeof(next->ifname)); strncpy(file, CONFIG_DIR "/", sizeof(file)); strncat(file, dp->d_name, sizeof(file) - strlen(file)); fp = fopen(file, "r"); if (!fp) { - FCM_LOG_ERR(errno, "Failed reading %s\n", file); - exit(1); + FCM_LOG_ERR(errno, "Failed to read %s\n", file); + free(next); + continue; } + next->action = FCP_WAIT; + /* FCOE_ENABLE */ rc = fcm_read_config_variable(file, val, sizeof(val), fp, "FCOE_ENABLE"); if (rc < 0) { fclose(fp); - return -1; + free(next); + continue; } /* if not found, default to "no" */ if (!strncasecmp(val, "yes", 3) && rc == 1) - curr->fcoe_enable = 1; + next->fcoe_enable = 1; /* DCB_REQUIRED */ rc = fcm_read_config_variable(file, val, sizeof(val), fp, "DCB_REQUIRED"); if (rc < 0) { fclose(fp); - return -1; + free(next); + continue; } /* if not found, default to "no" */ if (!strncasecmp(val, "yes", 3) && rc == 1) { - curr->dcb_required = 1; - curr->dcb_app_0_enable = DCB_APP_0_DEFAULT_ENABLE; - curr->dcb_app_0_willing = DCB_APP_0_DEFAULT_WILLING; + next->dcb_required = 1; } fclose(fp); + + if (!fcoe_config.port) { + fcoe_config.port = next; + curr = next; + } else { + curr->next = next; + curr = next; + } } closedir(dir); return 0; } -static struct fcoe_port_config *fcm_find_port_config(char *ifname) +/* + * Given an fcoe_port pointer and an ifname, find the next fcoe_port + * in the list with a real ifname of 'ifname'. + * + * Returns: fcoe_port pointer to fcoe port entry + * NULL - if not found + */ +static struct fcoe_port *fcm_find_next_fcoe_port(struct fcoe_port *p, + char *ifname) { - struct fcoe_port_config *p; + struct fcoe_port *np; + + np = fcoe_config.port; + while (np) { + if (np == p) + break; + np = np->next; + } + + if (np) + np = np->next; + + while (np) { + if (!strncmp(ifname, np->real_ifname, IFNAMSIZ)) + return np; + np = np->next; + } + + return NULL; +} + +static struct fcoe_port *fcm_find_fcoe_port(char *ifname, + enum fcoeport_ifname t) +{ + struct fcoe_port *p; + char *fp_ifname; p = fcoe_config.port; while (p) { - if (!strncmp(ifname, p->ifname, IFNAMSIZ) && - p->fcoe_enable && p->dcb_required) + if (t == FCP_CFG_IFNAME) + fp_ifname = p->ifname; + else + fp_ifname = p->real_ifname; + + if (!strncmp(ifname, fp_ifname, IFNAMSIZ)) return p; p = p->next; } @@ -377,73 +433,33 @@ static int fcm_link_init(void) } -/* fcm_read_vlan - parse file for "Device" string - * @val_buf - copy string to val_buf - * @len - length of val_buf buffer - * @fp - file pointer to parse - */ -static void read_vlan(char *val_buf, size_t len, FILE *fp) -{ - char *s; - char buf[FILE_NAME_LEN]; - - val_buf[0] = '\0'; - buf[sizeof(buf) - 1] = '\0'; - while ((s = fgets(buf, sizeof(buf) - 1, fp)) != NULL) { - while (isspace(*s)) - s++; - - if (*s == '\0' || *s == '#') - continue; - - s = strstr(s, "Device:"); - if (s == NULL) - continue; - - while (!isspace(*s)) - s++; - - while (isspace(*s)) - s++; - - s = strncpy(val_buf, s, len); - while (isalnum(*s)) - s++; - - *s = '\0'; - return; - } -} - - - - -/* fcm_vlan_dev_real_dev - parse vlan real_dev from /proc - * @vlan_dev - vlan_dev to find real interface name for - * @real_dev - pointer to copy real_dev to +/* fcm_vlan_dev_real_dev - query vlan real_dev + * @vlan_ifname - vlan device ifname to find real interface name for + * @real_ifname - pointer to copy real ifname to * - * This parses the /proc/net/vlan/ directory for the vlan_dev. - * If the file exists it will parse for the real device and - * copy it to real_dev parameter. + * Make an ioctl call to find the real device for vlan_ifname. + * Copy to real_ifname if found. */ static void fcm_vlan_dev_real_dev(char *vlan_ifname, char *real_ifname) { - FILE *fp; - char file[80]; + int fd; + struct vlan_ioctl_args ifv; - if (opendir(VLAN_DIR)) { - strncpy(file, VLAN_DIR "/", sizeof(file)); - strncat(file, vlan_ifname, sizeof(file) - strlen(file)); + real_ifname[0] = '\0'; - fp = fopen(file, "r"); - if (fp) { - read_vlan(real_ifname, sizeof(real_ifname), fp); - fclose(fp); - return; - } + fd = socket(PF_INET, SOCK_DGRAM, 0); + + if (fd <= 0) { + FCM_LOG_ERR(errno, "open vlan query socket error"); + return; } - strncpy(real_ifname, vlan_ifname, sizeof(real_ifname)); + memset(&ifv, 0, sizeof(ifv)); + ifv.cmd = GET_VLAN_REALDEV_NAME_CMD; + strncpy(ifv.device1, vlan_ifname, strlen(vlan_ifname)+1); + if (ioctl(fd, SIOCGIFVLAN, &ifv) == 0) + strncpy(real_ifname, ifv.u.device2, strlen(ifv.u.device2)+1); + close(fd); } /* fcm_is_linkinfo_vlan - parse nlmsg linkinfo rtattr for vlan kind @@ -472,11 +488,27 @@ int fcm_is_linkinfo_vlan(struct rtattr *ap) return 0; } +static void fcp_action_set(char *ifname, enum fcp_action action) +{ + struct fcoe_port *p; + + p = fcm_find_fcoe_port(ifname, FCP_REAL_IFNAME); + while (p) { + p->action = action; + p = fcm_find_next_fcoe_port(p, ifname); + } +} + static struct sa_nameval fcm_dcbd_states[] = FCM_DCBD_STATES; -static void fcm_dcbd_state_set(struct fcm_fcoe *ff, +static void fcm_dcbd_state_set(struct fcm_netif *ff, enum fcm_dcbd_state new_state) { + if (ff->ff_operstate != IF_OPER_UP) { + ff->ff_dcbd_state = FCD_INIT; + return; + } + if (fcoe_config.debug) { char old[32]; char new[32]; @@ -488,19 +520,39 @@ static void fcm_dcbd_state_set(struct fcm_fcoe *ff, sa_enum_decode(new, sizeof(new), fcm_dcbd_states, new_state)); } + + if (new_state == FCD_GET_DCB_STATE) + clear_dcbd_info(ff); + + if (new_state == FCD_INIT) { + ff->dcbd_retry_cnt = 0; + sa_timer_cancel(&ff->dcbd_retry_timer); + } + + if (new_state == FCD_ERROR) { + ff->dcbd_retry_cnt++; + FCM_LOG_DEV_DBG(ff, "%s: SETTING dcbd RETRY TIMER = %d\n", + ff->ifname, + ff->dcbd_retry_cnt * DCBD_REQ_RETRY_TIMEOUT); + sa_timer_set(&ff->dcbd_retry_timer, + ff->dcbd_retry_cnt * DCBD_REQ_RETRY_TIMEOUT); + } + ff->ff_dcbd_state = new_state; + ff->response_pending = 0; } -void fcm_parse_link_msg(struct ifinfomsg *ip, int len) +void fcm_process_link_msg(struct ifinfomsg *ip, int len, unsigned type) { - struct fcm_fcoe *ff; - struct fcm_vfcoe *fv; + struct fcoe_port *p; + struct fcm_netif *ff = NULL; struct rtattr *ap; char ifname[IFNAMSIZ]; char real_dev[IFNAMSIZ]; u_int8_t operstate; u_int64_t mac; int is_vlan; + int dcb_required_cnt; mac = is_vlan = 0; operstate = IF_OPER_UNKNOWN; @@ -529,11 +581,8 @@ void fcm_parse_link_msg(struct ifinfomsg *ip, int len) break; case IFLA_LINKINFO: - if (!fcm_is_linkinfo_vlan(ap)) - break; - fcm_vlan_dev_real_dev(ifname, real_dev); - is_vlan = 1; - FCM_LOG_DBG("vlan ifname %s:%s", real_dev, ifname); + if (fcm_is_linkinfo_vlan(ap)) + is_vlan = 1; break; default: @@ -541,30 +590,113 @@ void fcm_parse_link_msg(struct ifinfomsg *ip, int len) } } + p = fcm_find_fcoe_port(ifname, FCP_CFG_IFNAME); if (is_vlan) { - fv = fcm_vfcoe_lookup_create_ifname(ifname, real_dev); - if (!fv) - return; - ff = fcm_fcoe_lookup_name(real_dev); - fv->fv_active = 1; - } else { - ff = fcm_fcoe_lookup_create_ifname(ifname); - if (!ff) + /* if not in fcoe port list, then ignore this ifname */ + if (!p) return; - ff->ff_active = 1; - } - /* Set FCD_INIT when netif is enabled */ - if (!(ff->ff_flags & IFF_LOWER_UP) && (ip->ifi_flags & IFF_LOWER_UP)) - fcm_dcbd_state_set(ff, FCD_INIT); + /* try to find the real device name */ + real_dev[0] = '\0'; + if (type != RTM_DELLINK) { + fcm_vlan_dev_real_dev(ifname, real_dev); + if (strlen(real_dev)) { + strncpy(p->real_ifname, real_dev, + strlen(real_dev)+1); + ff = fcm_netif_lookup_create(real_dev); + if (!ff) + return; + } - /* Set FCD_ERROR when netif is disabled */ - if ((ff->ff_flags & IFF_LOWER_UP) && !(ip->ifi_flags & IFF_LOWER_UP)) - fcm_dcbd_state_set(ff, FCD_ERROR); + if (operstate == IF_OPER_UP) { + /* if ff was just created, initialize + * operstate to the value of the VLAN + * interface. Since the VLAN interface + * is up, the underlying real interface + * should be up too. + */ + if (ff->ff_operstate == IF_OPER_UNKNOWN) + ff->ff_operstate = operstate; + + if (p->fcoe_enable) { + if (p->dcb_required) + fcm_dcbd_state_set(ff, + FCD_GET_DCB_STATE); + else + p->action = FCP_CREATE_IF; + } + + } + if (!p->fcoe_enable) + p->action = FCP_DESTROY_IF; + } else { + p->action = FCP_DESTROY_IF; + } + p->last_msg_type = type; + } else { + /* there is an fcoe port configured to use this real netif. + * make sure structures are up to date. + */ + if (p && type != RTM_DELLINK) { + strncpy(p->real_ifname, ifname, strlen(ifname)+1); + ff = fcm_netif_lookup_create(ifname); + if (!ff) + return; + ff->ff_operstate = operstate; + if (p->fcoe_enable) { + if (!p->dcb_required && operstate == IF_OPER_UP) + p->action = FCP_CREATE_IF; + if (p->dcb_required && operstate != IF_OPER_UP) + fcm_dcbd_state_set(ff, FCD_INIT); + } else { + p->action = FCP_DESTROY_IF; + } + } else if (p && type == RTM_DELLINK) { + p->action = FCP_DESTROY_IF; + } else if (p && !p->fcoe_enable) { + p->action = FCP_DESTROY_IF; + } - ff->ff_flags = ip->ifi_flags; - ff->ff_mac = mac; - ff->ff_operstate = operstate; + if (!ff) + ff = fcm_netif_lookup(ifname); + if (ff) + ff->ff_operstate = operstate; + + /* scan for all fcoe port's which use this netif as a + * real netif. + */ + p = fcm_find_fcoe_port(ifname, FCP_REAL_IFNAME); + dcb_required_cnt = 0; + while (p) { + ff = fcm_netif_lookup_create(ifname); + if (!ff) + break; + ff->ff_operstate = operstate; + + if (p->fcoe_enable && p->last_msg_type != RTM_DELLINK) { + if (operstate == IF_OPER_UP) { + if (p->dcb_required) { + fcm_dcbd_state_set(ff, + FCD_GET_DCB_STATE); + dcb_required_cnt++; + } else if (!dcb_required_cnt) { + fcm_dcbd_state_set(ff, + FCD_INIT); + } + } else { + if (p->dcb_required) + fcm_dcbd_state_set(ff, + FCD_INIT); + if (type == RTM_DELLINK) + p->action = FCP_DESTROY_IF; + } + } else { + p->action = FCP_DESTROY_IF; + } + + p = fcm_find_next_fcoe_port(p, ifname); + } + } } static void fcm_link_recv(void *arg) @@ -615,10 +747,10 @@ static void fcm_link_recv(void *arg) case RTM_NEWLINK: case RTM_DELLINK: case RTM_GETLINK: - FCM_LOG_DBG("Link event: %d flags %05X index %d\n", + FCM_LOG_DBG("Link event: %d flags %05X index %d ", type, ip->ifi_flags, ip->ifi_index); - fcm_parse_link_msg(ip, plen); + fcm_process_link_msg(ip, plen, type); break; default: @@ -671,11 +803,14 @@ static int fcm_link_buf_check(size_t read_len) fcm_link_buf = buf; fcm_link_buf_size = len; return 1; + } else { + FCM_LOG_ERR(errno, "failed to allocate link buffer"); } } return 0; } + static void fcm_fcoe_init(void) { if (fcm_read_config_files()) @@ -683,139 +818,61 @@ static void fcm_fcoe_init(void) } /* - * Allocate a virtual FCoE interface state structure. - */ -static struct fcm_vfcoe *fcm_vfcoe_alloc(struct fcm_fcoe *ff) -{ - struct fcm_vfcoe *fv; - - fv = calloc(1, sizeof(*fv)); - if (fv) - TAILQ_INSERT_TAIL(&ff->ff_vfcoe_head, fv, fv_list); - return fv; -} -/* * Allocate an FCoE interface state structure. */ -static struct fcm_fcoe *fcm_fcoe_alloc(void) +static struct fcm_netif *fcm_netif_alloc(void) { - struct fcm_fcoe *ff; + struct fcm_netif *ff; ff = calloc(1, sizeof(*ff)); if (ff) { ff->ff_qos_mask = fcm_def_qos_mask; - ff->ff_ifindex = ~0; ff->ff_operstate = IF_OPER_UNKNOWN; - TAILQ_INSERT_TAIL(&fcm_fcoe_head, ff, ff_list); - TAILQ_INIT(&(ff->ff_vfcoe_head)); + TAILQ_INSERT_TAIL(&fcm_netif_head, ff, ff_list); + } else { + FCM_LOG_ERR(errno, "failed to allocate fcm_netif"); } return ff; } /* - * Find a virtual FCoE interface by ifname - */ -static struct fcm_vfcoe *fcm_vfcoe_lookup_create_ifname(char *ifname, - char *real_name) -{ - struct fcm_fcoe *ff; - struct fcm_vfcoe *fv; - struct fcoe_port_config *p; - - p = fcm_find_port_config(ifname); - if (!p) - return NULL; - - ff = fcm_fcoe_lookup_name(real_name); - if (!ff) { - ff = fcm_fcoe_alloc(); - if (!ff) - return NULL; - fcm_fcoe_set_name(ff, real_name); - ff->ff_app_info.enable = DCB_APP_0_DEFAULT_ENABLE; - ff->ff_app_info.willing = DCB_APP_0_DEFAULT_WILLING; - ff->ff_pfc_saved.u.pfcup = 0xffff; - sa_timer_init(&ff->ff_event_timer, fcm_event_timeout, ff); - } - - fv = fcm_vfcoe_lookup_name(ff, ifname); - if (fv) - return fv; - - fv = fcm_vfcoe_alloc(ff); - if (!fv) { - TAILQ_REMOVE(&fcm_fcoe_head, ff, ff_list); - free(ff); - return NULL; - } - - snprintf(fv->fv_name, sizeof(fv->fv_name), "%s", ifname); - return fv; -} - -/* - * Find an FCoE interface by ifindex. + * Find or create an FCoE network interface by ifname. * @ifname - interface name to create - * @check - check for port config file before creating * - * This create a fcoe interface structure with interface name, - * or if one already exists returns the existing one. If check - * is set it verifies the ifname has a valid config file before - * creating interface + * This creates a netif interface structure with interface name, + * or if one already exists returns the existing one. */ -static struct fcm_fcoe *fcm_fcoe_lookup_create_ifname(char *ifname) +static struct fcm_netif *fcm_netif_lookup_create(char *ifname) { - struct fcm_fcoe *ff; - struct fcoe_port_config *p; - - p = fcm_find_port_config(ifname); - if (!p) - return NULL; + struct fcm_netif *ff; - TAILQ_FOREACH(ff, &fcm_fcoe_head, ff_list) { - if (!strncmp(ifname, ff->ff_name, IFNAMSIZ)) + TAILQ_FOREACH(ff, &fcm_netif_head, ff_list) { + if (!strncmp(ifname, ff->ifname, IFNAMSIZ)) return ff; } - ff = fcm_fcoe_alloc(); + ff = fcm_netif_alloc(); if (ff != NULL) { - fcm_fcoe_set_name(ff, ifname); - ff->ff_pfc_saved.u.pfcup = 0xffff; - sa_timer_init(&ff->ff_event_timer, fcm_event_timeout, ff); + snprintf(ff->ifname, sizeof(ff->ifname), "%s", ifname); + sa_timer_init(&ff->dcbd_retry_timer, fcm_dcbd_retry_timeout, + (void *)ff); + FCM_LOG_DEV_DBG(ff, "Monitoring port %s\n", ifname); } - FCM_LOG_DEV_DBG(ff, "Monitoring port %s\n", ifname); return ff; } /* - * Find an virtual FCoE interface by name. - */ -static struct fcm_vfcoe *fcm_vfcoe_lookup_name(struct fcm_fcoe *ff, char *name) -{ - struct fcm_vfcoe *fv, *curr; - - TAILQ_FOREACH(curr, &(ff->ff_vfcoe_head), fv_list) { - if (!strncmp(curr->fv_name, name, sizeof(name))) { - fv = curr; - break; - } - } - - return fv; -} - -/* * Find an FCoE interface by name. */ -static struct fcm_fcoe *fcm_fcoe_lookup_name(char *name) +static struct fcm_netif *fcm_netif_lookup(char *ifname) { - struct fcm_fcoe *ff, *curr; + struct fcm_netif *ff, *curr; ff = NULL; - TAILQ_FOREACH(curr, &fcm_fcoe_head, ff_list) { - if (strcmp(curr->ff_name, name) == 0) { + TAILQ_FOREACH(curr, &fcm_netif_head, ff_list) { + if (strcmp(curr->ifname, ifname) == 0) { ff = curr; break; } @@ -824,53 +881,6 @@ static struct fcm_fcoe *fcm_fcoe_lookup_name(char *name) return ff; } -static void fcm_fcoe_get_dcb_settings(struct fcm_fcoe *ff) -{ - struct fcoe_port_config *p; - struct fcm_vfcoe *fv; - - if (ff->ff_mac == 0) - return; /* loopback or other non-eligible interface */ - - /* - * Get DCB config from file if possible. - */ - p = fcoe_config.port; - while (p) { - if (!strncmp(ff->ff_name, p->ifname, IFNAMSIZ)) { - ff->ff_app_info.enable = p->dcb_app_0_enable; - ff->ff_app_info.willing = p->dcb_app_0_willing; - break; - } - - TAILQ_FOREACH(fv, &(ff->ff_vfcoe_head), fv_list) { - if (!strncmp(fv->fv_name, p->ifname, IFNAMSIZ)) { - ff->ff_app_info.enable = p->dcb_app_0_enable; - ff->ff_app_info.willing = p->dcb_app_0_willing; - break; - } - } - - p = p->next; - } -} - -static void fcm_fcoe_set_name(struct fcm_fcoe *ff, char *ifname) -{ - char *cp; - int vlan; - - snprintf(ff->ff_name, sizeof(ff->ff_name), "%s", ifname); - vlan = -1; - cp = strchr(ff->ff_name, '.'); - if (cp != NULL) { - vlan = atoi(cp + 1); - if (vlan < 0 || vlan > 4095) - vlan = 0; - } - ff->ff_vlan = vlan; -} - static void fcm_dcbd_init() { fcm_clif->cl_fd = -1; /* not connected */ @@ -916,35 +926,11 @@ static int fcm_dcbd_connect(void) return 0; } fcm_clif->cl_fd = fd; - sa_select_add_fd(fd, fcm_dcbd_rx, NULL, fcm_dcbd_ex, fcm_clif); + sa_select_add_fd(fd, fcm_dcbd_rx, NULL, NULL, fcm_clif); FCM_LOG_DBG("connected to dcbd"); return 1; } -static int is_query_in_progress(void) -{ - struct fcm_fcoe *ff; - - TAILQ_FOREACH(ff, &fcm_fcoe_head, ff_list) { - if (ff->ff_dcbd_state >= FCD_GET_DCB_STATE && - ff->ff_dcbd_state < FCD_DONE) - return 1; - } - return 0; -} - -static void fcm_fcoe_config_reset(void) -{ - struct fcm_fcoe *ff; - - TAILQ_FOREACH(ff, &fcm_fcoe_head, ff_list) { - fcm_dcbd_setup(ff, ADM_DESTROY); - ff->ff_qos_mask = fcm_def_qos_mask; - ff->ff_pfc_saved.u.pfcup = 0xffff; - FCM_LOG_DEV_DBG(ff, "Port config reset\n"); - } -} - static void fcm_dcbd_timeout(void *arg) { if (fcm_clif->cl_ping_pending > 0) { @@ -954,13 +940,24 @@ static void fcm_dcbd_timeout(void *arg) if (fcm_clif->cl_fd < 0) { if (fcm_dcbd_connect()) fcm_dcbd_request("A"); /* ATTACH_CMD: for events */ + else + sa_timer_set(&fcm_dcbd_timer, DCBD_CONNECT_TIMEOUT); } else { - if (!is_query_in_progress()) { - fcm_clif->cl_ping_pending++; - fcm_dcbd_request("P"); /* ping to verify connection */ - } + fcm_clif->cl_ping_pending++; + fcm_dcbd_request("P"); /* ping to verify connection */ } - sa_timer_set(&fcm_dcbd_timer, FCM_DCBD_TIMEOUT_USEC); +} + +static void fcm_dcbd_retry_timeout(void *arg) +{ + struct fcm_netif *ff = (struct fcm_netif *)arg; + + ASSERT(ff); + FCM_LOG_DBG("%s: dcbd retry TIMEOUT occurred [%d]", + ff->ifname, ff->dcbd_retry_cnt); + + fcm_dcbd_state_set(ff, FCD_GET_DCB_STATE); + fcm_netif_advance(ff); } static void fcm_dcbd_disconnect(void) @@ -973,7 +970,6 @@ static void fcm_dcbd_disconnect(void) fcm_clif->cl_fd = -1; /* mark as disconnected */ fcm_clif->cl_busy = 0; fcm_clif->cl_ping_pending = 0; - fcm_fcoe_config_reset(); FCM_LOG_DBG("Disconnected from dcbd"); } } @@ -987,34 +983,19 @@ static void fcm_dcbd_shutdown(void) closelog(); } -static void fcm_vfcoe_cleanup(struct fcm_fcoe *ff) -{ - struct fcm_vfcoe *fv, *head; - struct fcm_vfcoe_head *list; - - list = &(ff->ff_vfcoe_head); - - for (head = TAILQ_FIRST(list); head; head = fv) { - fv = TAILQ_NEXT(head, fv_list); - TAILQ_REMOVE(list, head, fv_list); - free(head); - } -} - static void fcm_cleanup(void) { - struct fcoe_port_config *curr, *next; - struct fcm_fcoe *ff, *head; + struct fcoe_port *curr, *next; + struct fcm_netif *ff, *head; for (curr = fcoe_config.port; curr; curr = next) { next = curr->next; free(curr); } - for (head = TAILQ_FIRST(&fcm_fcoe_head); head; head = ff) { + for (head = TAILQ_FIRST(&fcm_netif_head); head; head = ff) { ff = TAILQ_NEXT(head, ff_list); - TAILQ_REMOVE(&fcm_fcoe_head, head, ff_list); - fcm_vfcoe_cleanup(head); + TAILQ_REMOVE(&fcm_netif_head, head, ff_list); free(head); } @@ -1055,7 +1036,6 @@ static void fcm_dcbd_rx(void *arg) if (rc < 0) FCM_LOG_ERR(errno, "read"); else if ((rc > 0) && (rc < sizeof(buf))) { - ASSERT(rc < sizeof(buf)); buf[rc] = '\0'; len = strlen(buf); ASSERT(len <= rc); @@ -1097,7 +1077,6 @@ static void fcm_dcbd_rx(void *arg) len, buf); break; } - fcm_dcbd_next(); /* advance ports if possible */ break; case EVENT_MSG: @@ -1111,33 +1090,33 @@ static void fcm_dcbd_rx(void *arg) } } -static void fcm_dcbd_ex(void *arg) -{ - FCM_LOG_DBG("called"); -} - -static void fcm_dcbd_request(char *req) +/* + * returns: 1 if request was successfully written + * 0 if the write failed +*/ +static int fcm_dcbd_request(char *req) { size_t len; int rc; if (fcm_clif->cl_fd < 0) - return; + return 0; len = strlen(req); ASSERT(fcm_clif->cl_busy == 0); + sa_timer_set(&fcm_dcbd_timer, DCBD_CONNECT_TIMEOUT); fcm_clif->cl_busy = 1; rc = write(fcm_clif->cl_fd, req, len); if (rc < 0) { FCM_LOG_ERR(errno, "Failed write req %s len %d", req, len); fcm_clif->cl_busy = 0; fcm_dcbd_disconnect(); - fcm_dcbd_connect(); - return; + sa_timer_set(&fcm_dcbd_timer, DCBD_CONNECT_RETRY_TIMEOUT); + return 0; } if (rc > FCM_PING_REQ_LEN) FCM_LOG_DBG("sent '%s', rc=%d bytes succeeded", req, rc); - return; + return 1; } /* @@ -1147,10 +1126,10 @@ static void fcm_dcbd_request(char *req) * The pointer to the message pointer is passed in, and updated to point * past the interface name. */ -static struct fcm_fcoe *fcm_dcbd_get_port(char **msgp, size_t len_off, +static struct fcm_netif *fcm_dcbd_get_port(char **msgp, size_t len_off, size_t len_len, size_t len) { - struct fcm_fcoe *ff; + struct fcm_netif *ff; u_int32_t if_len; char *ep; char *msg; @@ -1173,10 +1152,9 @@ static struct fcm_fcoe *fcm_dcbd_get_port(char **msgp, size_t len_off, msg += len_off + len_len; sa_strncpy_safe(ifname, sizeof(ifname), msg, if_len); *msgp = msg + if_len; - ff = fcm_fcoe_lookup_name(ifname); + ff = fcm_netif_lookup(ifname); if (ff == NULL) { FCM_LOG("ifname '%s' not found", ifname); - exit(1); /* XXX */ } return ff; } @@ -1184,10 +1162,11 @@ static struct fcm_fcoe *fcm_dcbd_get_port(char **msgp, size_t len_off, /* * (XXX) Notes: * This routine is here to help fcm_dcbd_cmd_resp() to pick up - * information of the response packet from the DCBD. In the - * future, it should be merged into fcm_dcbd_cmd_resp(). + * information of the response packet from the DCBD. + * Returns: 0 on success + * -1 on failure */ -static int dcb_rsp_parser(struct fcm_fcoe *ff, char *rsp, cmd_status st) +static int dcb_rsp_parser(struct fcm_netif *ff, char *rsp) { int version; int dcb_cmd; @@ -1200,25 +1179,9 @@ static int dcb_rsp_parser(struct fcm_fcoe *ff, char *rsp, cmd_status st) struct feature_info *f_info = NULL; char buf[20]; - if (st != cmd_success) /* log msg already issued */ - return -1; - feature = hex2int(rsp+DCB_FEATURE_OFF); - if (feature != FEATURE_DCB && - feature != FEATURE_PFC && - feature != FEATURE_APP) { - FCM_LOG_DEV(ff, "WARNING: Unexpected DCB feature %d\n", - feature); - return -1; - } dcb_cmd = hex2int(rsp+DCB_CMD_OFF); - if (dcb_cmd != CMD_GET_CONFIG && - dcb_cmd != CMD_GET_OPER && - dcb_cmd != CMD_GET_PEER) { - FCM_LOG_DEV(ff, "WARNING: Unexpected DCB cmd %d\n", dcb_cmd); - return -1; - } version = rsp[DCB_VER_OFF] & 0x0f; if (version != CLIF_MSG_VERSION) { @@ -1234,10 +1197,6 @@ static int dcb_rsp_parser(struct fcm_fcoe *ff, char *rsp, cmd_status st) switch (feature) { case FEATURE_DCB: ff->ff_dcb_state = (*(rsp+doff+CFG_ENABLE) == '1'); - if (!ff->ff_dcb_state) { - FCM_LOG_DEV(ff, "WARNING: DCB state is off\n"); - return -1; - } return 0; case FEATURE_PFC: f_info = &ff->ff_pfc_info; @@ -1246,6 +1205,8 @@ static int dcb_rsp_parser(struct fcm_fcoe *ff, char *rsp, cmd_status st) f_info = &ff->ff_app_info; f_info->subtype = subtype; break; + default: + return -1; } switch (dcb_cmd) { @@ -1281,123 +1242,138 @@ static int dcb_rsp_parser(struct fcm_fcoe *ff, char *rsp, cmd_status st) return 0; } + /* - * validating_dcb_app_pfc - Validating App:FCoE and PFC requirements - * - * DCB is configured correctly when - * 1) The local configuration of the App:FCoE feature is - * configured to Enable=TRUE, Advertise=TRUE, Willing=TRUE. - * 2) App:FCoE feature is in Opertional Mode = TRUE, - * 3) PFC feasture is in Opertional Mode = TRUE, - * 4) The priority indicated by the App:FCoE Operational Configuration - * is also enabled in the PFC Operational Configuration. - * 5) DCB State is on. + * validate_dcbd_info - Validating DCBD configuration and status * - * Returns: 1 if succeeded - * 0 if failed + * Returns: FCP_CREATE_IF - if the dcb netif qualifies for an fcoe interface + * FCP_DESTROY_IF - if the dcb netif should not support fcoe interface + * FCP_WAIT - if dcb criteria is inconclusive */ -static int validating_dcb_app_pfc(struct fcm_fcoe *ff) +static int validate_dcbd_info(struct fcm_netif *ff) { - int error = 0; + int errors = 0; + int dcbon; + + dcbon = ff->ff_dcb_state; + + /* check if dcb state qualifies to create the fcoe interface */ + if (dcbon && + ff->ff_app_info.enable && + ff->ff_pfc_info.enable && + ff->ff_app_info.op_mode && + ff->ff_pfc_info.op_mode && + ff->ff_pfc_info.u.pfcup & ff->ff_app_info.u.appcfg) { + + if (dcbon && !ff->ff_app_info.willing) { + FCM_LOG_DEV(ff, + "WARNING: FCoE willing mode is false\n"); + errors++; + } + if (dcbon && !ff->ff_app_info.advertise) { + FCM_LOG_DEV(ff, + "WARNING: FCoE advertise mode is false\n"); + errors++; + } + if (dcbon && !ff->ff_pfc_info.willing) { + FCM_LOG_DEV(ff, + "WARNING: PFC willing mode is false\n"); + errors++; + } + if (dcbon && !ff->ff_pfc_info.advertise) { + FCM_LOG_DEV(ff, + "WARNING: PFC advertise mode is false\n"); + errors++; + } - if (!ff->ff_dcb_state) { - FCM_LOG_DEV(ff, "WARNING: DCB state is off\n"); - error++; + if (errors) + FCM_LOG_DEV_DBG(ff, + "WARNING: DCB may not be configured correctly\n"); + else + FCM_LOG_DEV_DBG(ff, "DCB is configured correctly\n"); + + ff->ff_qos_mask = + ff->ff_pfc_info.u.pfcup & ff->ff_app_info.u.appcfg; + + return FCP_CREATE_IF; } - if (!ff->ff_app_info.willing) { - FCM_LOG_DEV(ff, "WARNING: APP:0 willing mode is false\n"); - error++; + + /* check if dcb state qualifies to destroy the fcoe interface */ + if (!dcbon || + !ff->ff_app_info.enable || + (ff->ff_app_info.op_mode && ff->ff_pfc_info.op_mode && + !(ff->ff_pfc_info.u.pfcup & ff->ff_app_info.u.appcfg))) { + + if (dcbon && !ff->ff_dcb_state) + FCM_LOG_DEV(ff, "WARNING: DCB is disabled\n"); + + if (dcbon && !ff->ff_app_info.enable) + FCM_LOG_DEV(ff, "WARNING: FCoE enable is off\n"); + + if (dcbon && + !(ff->ff_pfc_info.u.pfcup & ff->ff_app_info.u.appcfg)) + FCM_LOG_DEV(ff, + "WARNING: FCoE priority (0x%02x) doesn't " + "intersect with PFC priority (0x%02x)\n", + ff->ff_app_info.u.appcfg, + ff->ff_pfc_info.u.pfcup); + + return FCP_DESTROY_IF; + } + + /* The dcbd state does not match the create or destroy criteria. + * Log possible problems. + */ + if (dcbon && !ff->ff_app_info.willing) { + FCM_LOG_DEV(ff, "WARNING: FCoE willing mode is false\n"); + errors++; + } + if (dcbon && !ff->ff_app_info.advertise) { + FCM_LOG_DEV(ff, "WARNING: FCoE advertise mode is false\n"); + errors++; } - if (!ff->ff_app_info.advertise) { - FCM_LOG_DEV(ff, "WARNING: APP:0 advertise mode is false\n"); - error++; + if (dcbon && !ff->ff_app_info.op_mode) { + FCM_LOG_DEV(ff, "WARNING: FCoE operational mode is false\n"); + print_errors("", ff->ff_app_info.op_error); + errors++; } - if (!ff->ff_app_info.enable) { - FCM_LOG_DEV(ff, "WARNING: APP:0 enable mode is false\n"); - error++; + if (dcbon && !ff->ff_pfc_info.enable) { + FCM_LOG_DEV(ff, "WARNING: PFC enable is off\n"); + errors++; } - if (!ff->ff_app_info.op_mode) { - FCM_LOG_DEV(ff, "WARNING: APP:0 operational mode is false\n"); - error++; + if (dcbon && !ff->ff_pfc_info.advertise) { + FCM_LOG_DEV(ff, "WARNING: PFC advertise mode is false\n"); + errors++; } - if (!ff->ff_pfc_info.op_mode) { + if (dcbon && !ff->ff_pfc_info.op_mode) { FCM_LOG_DEV(ff, "WARNING: PFC operational mode is false\n"); - error++; + print_errors("", ff->ff_pfc_info.op_error); + errors++; } - if ((ff->ff_pfc_info.u.pfcup & ff->ff_app_info.u.appcfg) \ - != ff->ff_app_info.u.appcfg) { + if (dcbon && !(ff->ff_pfc_info.u.pfcup & ff->ff_app_info.u.appcfg)) { FCM_LOG_DEV(ff, "WARNING: APP:0 priority (0x%02x) doesn't " - "match PFC priority (0x%02x)\n", + "intersect with PFC priority (0x%02x)\n", ff->ff_app_info.u.appcfg, ff->ff_pfc_info.u.pfcup); - error++; + errors++; } - if (error) { - FCM_LOG_DEV(ff, "WARNING: DCB is configured incorrectly\n"); - return 0; + if (errors) { + FCM_LOG_DEV(ff, "WARNING: DCB may be configured incorrectly\n"); + return FCP_ERROR; } - FCM_LOG_DEV_DBG(ff, "DCB is configured correctly\n"); - return 1; + return FCP_WAIT; } -/* - * validating_dcbd_info - Validating DCBD configuration and status - * - * Returns: 1 if succeeded - * 0 if failed - */ -static int validating_dcbd_info(struct fcm_fcoe *ff) -{ - int rc; - - rc = validating_dcb_app_pfc(ff); - return rc; -} - -/* - * is_pfcup_changed - Check to see if PFC priority is changed - * - * Returns: 0 if no - * 1 if yes, but it is the first time, or was destroyed. - * 2 if yes - */ -static int is_pfcup_changed(struct fcm_fcoe *ff) -{ - if (ff->ff_pfc_info.u.pfcup != ff->ff_pfc_saved.u.pfcup) { - if (ff->ff_pfc_saved.u.pfcup == 0xffff) - return 1; /* first time */ - else - return 2; - } - return 0; -} - -/* - * update_saved_pfcup - Update the saved PFC priority with - * the current priority. - * - * Returns: None - */ -static void update_saved_pfcup(struct fcm_fcoe *ff) -{ - ff->ff_pfc_saved.u.pfcup = ff->ff_pfc_info.u.pfcup; -} /* * clear_dcbd_info - clear dcbd info to unknown values * */ -static void clear_dcbd_info(struct fcm_fcoe *ff) +static void clear_dcbd_info(struct fcm_netif *ff) { - ff->ff_dcb_state = 0; - ff->ff_app_info.advertise = 0; - ff->ff_app_info.enable = 0; - ff->ff_app_info.op_mode = 0; - ff->ff_app_info.u.appcfg = 0; - ff->ff_app_info.willing = 0; - ff->ff_pfc_info.op_mode = 0; - ff->ff_pfc_info.u.pfcup = 0xffff; + memset(&ff->ff_pfc_info, 0, sizeof(struct feature_info)); + memset(&ff->ff_app_info, 0, sizeof(struct feature_info)); } @@ -1406,13 +1382,10 @@ static void clear_dcbd_info(struct fcm_fcoe *ff) * @ff: fcoe port structure * @st: status */ -static void fcm_dcbd_set_config(struct fcm_fcoe *ff, cmd_status st) +static void fcm_dcbd_set_config(struct fcm_netif *ff) { if (ff->ff_dcbd_state == FCD_SEND_CONF) { - if (st != cmd_success) - fcm_dcbd_state_set(ff, FCD_ERROR); - else - fcm_dcbd_state_set(ff, FCD_GET_PFC_CONFIG); + fcm_dcbd_state_set(ff, FCD_GET_PFC_CONFIG); } } @@ -1422,47 +1395,31 @@ static void fcm_dcbd_set_config(struct fcm_fcoe *ff, cmd_status st) * @resp: response buffer * @st: status */ -static void fcm_dcbd_get_config(struct fcm_fcoe *ff, char *resp, - const cmd_status st) +static void fcm_dcbd_get_config(struct fcm_netif *ff, char *resp) { - int rc; - switch (ff->ff_dcbd_state) { case FCD_GET_DCB_STATE: - if (st != cmd_success) { - fcm_dcbd_state_set(ff, FCD_ERROR); - break; - } - rc = dcb_rsp_parser(ff, resp, st); - if (!rc) - fcm_dcbd_state_set(ff, FCD_SEND_CONF); - else + if (!dcb_rsp_parser(ff, resp)) { + if (ff->ff_dcb_state) + fcm_dcbd_state_set(ff, FCD_GET_PFC_CONFIG); + else + fcm_dcbd_state_set(ff, FCD_DONE); + } else fcm_dcbd_state_set(ff, FCD_ERROR); break; case FCD_GET_PFC_CONFIG: - if (st != cmd_success) { - fcm_dcbd_state_set(ff, FCD_ERROR); - break; - } - rc = dcb_rsp_parser(ff, resp, st); - if (!rc) + if (!dcb_rsp_parser(ff, resp)) fcm_dcbd_state_set(ff, FCD_GET_APP_CONFIG); else fcm_dcbd_state_set(ff, FCD_ERROR); break; case FCD_GET_APP_CONFIG: - if (st != cmd_success) { - fcm_dcbd_state_set(ff, FCD_ERROR); - break; - } - rc = dcb_rsp_parser(ff, resp, st); - if (!rc) + if (!dcb_rsp_parser(ff, resp)) fcm_dcbd_state_set(ff, FCD_GET_PFC_OPER); else fcm_dcbd_state_set(ff, FCD_ERROR); break; default: - fcm_dcbd_state_set(ff, FCD_ERROR); break; } } @@ -1478,128 +1435,47 @@ static void fcm_dcbd_get_config(struct fcm_fcoe *ff, char *resp, * Sample msg: R00C103050004eth8010100100208 * opppssll vvmmeemsllpp */ -static void fcm_dcbd_get_oper(struct fcm_fcoe *ff, char *resp, - char *cp, const cmd_status st) +static void fcm_dcbd_get_oper(struct fcm_netif *ff, char *resp, char *cp) { - u_int32_t enable; u_int32_t val; - u_int32_t parm_len; - u_int32_t parm; char *ep = NULL; - int rc; val = fcm_get_hex(cp + OPER_ERROR, 2, &ep); if (ep) { FCM_LOG_DEV(ff, "Invalid get oper response " - "parse error byte %d, resp %s", - ep - cp, cp); + "parse error byte %d, resp %s", ep - cp, cp); fcm_dcbd_state_set(ff, FCD_ERROR); } else { - if (val != 0) { - FCM_LOG_DEV_DBG(ff, "val=0x%x resp:%s\n", val, - resp); - if (fcoe_config.debug) - print_errors("", val); - - fcm_dcbd_setup(ff, ADM_DESTROY); - fcm_dcbd_state_set(ff, FCD_DONE); - return; - } - - if (st != cmd_success) { - fcm_dcbd_state_set(ff, FCD_ERROR); - return; - } - - enable = (cp[OPER_OPER_MODE] == '1'); + if (val && fcoe_config.debug) + print_errors("", val); switch (ff->ff_dcbd_state) { case FCD_GET_PFC_OPER: - FCM_LOG_DEV_DBG(ff, "PFC feature is %ssynced", - cp[OPER_SYNCD] == '1' ? "" : "not "); + if (dcb_rsp_parser(ff, resp) || !ff->ff_pfc_info.syncd) + fcm_dcbd_state_set(ff, FCD_ERROR); + else + fcm_dcbd_state_set(ff, FCD_GET_APP_OPER); + FCM_LOG_DEV_DBG(ff, "PFC feature is %ssynced", + ff->ff_pfc_info.syncd ? "" : "not "); FCM_LOG_DEV_DBG(ff, "PFC operating mode is %s", - cp[OPER_OPER_MODE] == '1' - ? "on" : "off "); - ff->ff_pfc_info.enable = enable; - rc = dcb_rsp_parser(ff, resp, st); - if (!rc) - fcm_dcbd_state_set(ff, FCD_GET_APP_OPER); - else - fcm_dcbd_state_set(ff, FCD_ERROR); + ff->ff_pfc_info.op_mode ? "on" : "off "); break; case FCD_GET_APP_OPER: - FCM_LOG_DEV_DBG(ff, "FCoE feature is %ssynced", - cp[OPER_SYNCD] == '1' ? "" : "not "); - FCM_LOG_DEV_DBG(ff, "FCoE operating mode is %s", - cp[OPER_OPER_MODE] == '1' - ? "on" : "off "); - rc = dcb_rsp_parser(ff, resp, st); - if (rc) { + if (dcb_rsp_parser(ff, resp) || !ff->ff_app_info.syncd) fcm_dcbd_state_set(ff, FCD_ERROR); - break; - } - - parm_len = fcm_get_hex(cp + OPER_LEN, 2, &ep); - cp += OPER_LEN + 2; - if (ep != NULL || parm_len > strlen(cp)) { - FCM_LOG_DEV_DBG(ff, "Invalid peer parm_len %d", - parm_len); - fcm_dcbd_state_set(ff, FCD_ERROR); - break; - } - parm = 0; - if (parm_len > 0) { - parm = fcm_get_hex(cp, parm_len, &ep); - if (ep != NULL) { - FCM_LOG_DEV_DBG(ff, "Invalid parameter " - "%s", cp); - fcm_dcbd_state_set(ff, FCD_ERROR); - break; - } - } - ff->ff_qos_mask = parm; - if (validating_dcbd_info(ff)) { - FCM_LOG_DEV_DBG(ff, "DCB settings " - "qualified for creating " - "FCoE interface\n"); - - rc = is_pfcup_changed(ff); - if (rc == 1) { - FCM_LOG_DEV_DBG(ff, "Initial " - "QOS = 0x%x\n", - ff->ff_qos_mask); - fcm_dcbd_setup(ff, ADM_CREATE); - } else if (rc == 2) { - FCM_LOG_DEV_DBG(ff, "QOS changed" - " to 0x%x\n", - ff->ff_qos_mask); - fcm_dcbd_setup(ff, ADM_RESET); - } else if (!ff->ff_enabled) { - FCM_LOG_DEV_DBG(ff, "Re-create " - "QOS = 0x%x\n", - ff->ff_qos_mask); - fcm_dcbd_setup(ff, ADM_CREATE); - } else { - FCM_LOG_DEV_DBG(ff, "No action will " - "be taken\n"); - } - } else { - FCM_LOG_DEV_DBG(ff, "DCB settings of %s not " - "qualified for FCoE " - "operations."); - fcm_dcbd_setup(ff, ADM_DESTROY); - clear_dcbd_info(ff); - } + else + fcm_dcbd_state_set(ff, FCD_DONE); - update_saved_pfcup(ff); - fcm_dcbd_state_set(ff, FCD_DONE); - return; + FCM_LOG_DEV_DBG(ff, "FCoE feature is %ssynced", + ff->ff_app_info.syncd ? "" : "not "); + FCM_LOG_DEV_DBG(ff, "FCoE operating mode is %s", + ff->ff_app_info.op_mode ? "on" : "off "); + break; default: - fcm_dcbd_state_set(ff, FCD_ERROR); break; } } @@ -1612,36 +1488,9 @@ static void fcm_dcbd_get_oper(struct fcm_fcoe *ff, char *resp, * @cp: response buffer pointer, points past the interface name * @st: status */ -static void fcm_dcbd_get_peer(struct fcm_fcoe *ff, char *resp, - char *cp, const cmd_status st) +static void fcm_dcbd_get_peer(struct fcm_netif *ff, char *resp, char *cp) { - char *ep = NULL; - u_int32_t val; - - val = fcm_get_hex(cp + OPER_ERROR, 2, &ep); - if (ep) { - FCM_LOG_DEV_DBG(ff, "Invalid get oper response " - "parse error byte %d. resp %s", - ep - cp, cp); - fcm_dcbd_state_set(ff, FCD_ERROR); - return; - } - - if (val != 0) { - FCM_LOG_DEV_DBG(ff, "val=0x%x resp:%s\n", val, resp); - if (fcoe_config.debug) - print_errors("", val); - fcm_dcbd_setup(ff, ADM_DESTROY); - fcm_dcbd_state_set(ff, FCD_DONE); - return; - } - - if (st != cmd_success) { - fcm_dcbd_state_set(ff, FCD_ERROR); - return; - } - - fcm_dcbd_state_set(ff, FCD_ERROR); + return; } /* @@ -1650,11 +1499,12 @@ static void fcm_dcbd_get_peer(struct fcm_fcoe *ff, char *resp, */ static void fcm_dcbd_cmd_resp(char *resp, cmd_status st) { - struct fcm_fcoe *ff; + struct fcm_netif *ff; u_int32_t ver; u_int32_t cmd; u_int32_t feature; u_int32_t subtype; + u_int32_t state; char *ep; char *cp; size_t len; @@ -1691,26 +1541,42 @@ static void fcm_dcbd_cmd_resp(char *resp, cmd_status st) return; } - if (!(ff->ff_flags & IFF_LOWER_UP)) { - FCM_LOG_DEV_DBG(ff, "Port state netif carrier down\n"); - return; + /* + * check that dcbd response matches the current dcbd state. + */ + state = ff->ff_dcbd_state; + if (((cmd == CMD_GET_CONFIG) && + ((state == FCD_GET_DCB_STATE && feature == FEATURE_DCB) || + (state == FCD_GET_PFC_CONFIG && feature == FEATURE_PFC) || + (state == FCD_GET_APP_CONFIG && feature == FEATURE_APP))) + || + ((cmd == CMD_GET_OPER) && + ((state == FCD_GET_PFC_OPER && feature == FEATURE_PFC) || + (state == FCD_GET_APP_OPER && feature == FEATURE_APP)))) { + + /* the response matches the current pending query */ + ff->response_pending = 0; + if (st != cmd_success) { + fcm_dcbd_state_set(ff, FCD_ERROR); + return; + } } switch (cmd) { case CMD_SET_CONFIG: - fcm_dcbd_set_config(ff, st); + fcm_dcbd_set_config(ff); break; case CMD_GET_CONFIG: - fcm_dcbd_get_config(ff, resp, st); + fcm_dcbd_get_config(ff, resp); break; case CMD_GET_OPER: - fcm_dcbd_get_oper(ff, resp, cp, st); + fcm_dcbd_get_oper(ff, resp, cp); break; case CMD_GET_PEER: - fcm_dcbd_get_peer(ff, resp, cp, st); + fcm_dcbd_get_peer(ff, resp, cp); break; default: @@ -1720,27 +1586,14 @@ static void fcm_dcbd_cmd_resp(char *resp, cmd_status st) } } -static void fcm_event_timeout(void *arg) -{ - struct fcm_fcoe *ff = (struct fcm_fcoe *)arg; - - FCM_LOG_DEV_DBG(ff, "%d milliseconds timeout!\n", - FCM_EVENT_TIMEOUT_USEC/1000); - - if (!is_query_in_progress()) { - fcm_clif->cl_ping_pending++; - fcm_dcbd_request("P"); - } - fcm_dcbd_state_set(ff, FCD_GET_DCB_STATE); -} - /* * Handle incoming DCB event message. * Example message: E5104eth8050001 */ static void fcm_dcbd_event(char *msg, size_t len) { - struct fcm_fcoe *ff; + struct fcm_netif *ff; + struct fcoe_port *p; u_int32_t feature; u_int32_t subtype; char *cp; @@ -1757,11 +1610,6 @@ static void fcm_dcbd_event(char *msg, size_t len) if (ff == NULL) return; - if (!(ff->ff_flags & IFF_LOWER_UP)) { - FCM_LOG_DEV_DBG(ff, "Port state netif carrier down\n"); - return; - } - feature = fcm_get_hex(cp + EV_FEATURE_OFF, 2, &ep); if (ep != NULL) { FCM_LOG_DEV_DBG(ff, "Invalid feature code in event msg %s", @@ -1769,38 +1617,51 @@ static void fcm_dcbd_event(char *msg, size_t len) return; } + /* + * Check if the FCoE ports which use the interface on which the + * dcbd event arrived are configured to require dcb. + */ + + p = fcm_find_fcoe_port(ff->ifname, FCP_REAL_IFNAME); + while (p) { + if (p->dcb_required && p->last_msg_type != RTM_DELLINK) + break; + p = fcm_find_next_fcoe_port(p, ff->ifname); + } + + /* + * dcb is not required or link was removed, ignore dcbd event + */ + if (!p) + return; + + if (ff->ff_operstate != IF_OPER_UP) + return; + switch (feature) { - case FEATURE_DCB: - FCM_LOG_DEV_DBG(ff, "<%s: Got DCB Event>\n"); - goto ignore_event; case FEATURE_PG: /* 'E5204eth2020001' */ - FCM_LOG_DEV_DBG(ff, "<%s: Got PG Event>\n"); - goto ignore_event; - case FEATURE_BCN: /* 'E5204eth2040001' */ - FCM_LOG_DEV_DBG(ff, "<%s: Got BCN Event>\n"); - goto ignore_event; - case FEATURE_PG_DESC: - FCM_LOG_DEV_DBG(ff, "<%s: Got PG_DESC Event>\n"); - goto ignore_event; + FCM_LOG_DEV_DBG(ff, "<Got PG Event>\n"); + break; case FEATURE_PFC: /* 'E5204eth2030011' */ - FCM_LOG_DEV_DBG(ff, "<%s: Got PFC Event>\n"); - goto handle_event; + FCM_LOG_DEV_DBG(ff, "<Got PFC Event>\n"); + fcm_dcbd_state_set(ff, FCD_GET_DCB_STATE); + break; case FEATURE_APP: /* 'E5204eth2050011' */ - FCM_LOG_DEV_DBG(ff, "<%s: Got APP Event>\n"); - goto handle_event; + FCM_LOG_DEV_DBG(ff, "<Got APP Event>\n"); + subtype = fcm_get_hex(cp + EV_SUBTYPE_OFF, 2, &ep); + if (subtype != APP_FCOE_STYPE) { + FCM_LOG_DEV_DBG(ff, "Unknown application subtype " + "in msg %s", msg); + break; + } + fcm_dcbd_state_set(ff, FCD_GET_DCB_STATE); + break; default: FCM_LOG_DEV_DBG(ff, "Unknown feature 0x%x in msg %s", feature, msg); - goto ignore_event; + break; } -handle_event: - subtype = fcm_get_hex(cp + EV_SUBTYPE_OFF, 2, &ep); - if (subtype != APP_FCOE_STYPE) { - FCM_LOG_DEV_DBG(ff, "Unknown application subtype " - "in msg %s", msg); - return; - } if (fcoe_config.debug) { if (cp[EV_OP_MODE_CHG_OFF] == '1') FCM_LOG_DEV_DBG(ff, @@ -1809,21 +1670,6 @@ handle_event: FCM_LOG_DEV_DBG(ff, "Operational config changed"); } - - if (ff->ff_dcbd_state == FCD_DONE || - ff->ff_dcbd_state == FCD_ERROR) { - if (cp[EV_OP_MODE_CHG_OFF] == '1' || - cp[EV_OP_CFG_CHG_OFF] == '1') { - /* Cancel timer if it is active */ - sa_timer_cancel(&ff->ff_event_timer); - /* Reset the timer */ - sa_timer_set(&ff->ff_event_timer, - FCM_EVENT_TIMEOUT_USEC); - } - if (fcm_clif->cl_busy == 0) - fcm_dcbd_port_advance(ff); - } -ignore_event: return; } @@ -1834,9 +1680,8 @@ ignore_event: * enable = 1 Create the FCoE interface * enable = 2 Reset the interface */ -static void fcm_dcbd_setup(struct fcm_fcoe *ff, enum fcoeadm_action action) +static void fcm_fcoe_action(struct fcm_netif *ff, struct fcoe_port *p) { - struct fcm_vfcoe *fv; char *op, *debug, *syslog = NULL; char *qos_arg; char qos[64]; @@ -1844,13 +1689,29 @@ static void fcm_dcbd_setup(struct fcm_fcoe *ff, enum fcoeadm_action action) int rc; int fd; - if (action == 0) - op = "--destroy"; - else if (action == 1) + qos_arg = "--qos-enable"; + switch (p->action) { + case FCP_CREATE_IF: + if (p->last_action == FCP_CREATE_IF) + return; op = "--create"; - else + break; + case FCP_DESTROY_IF: + if (p->last_action == FCP_DESTROY_IF) + return; + op = "--destroy"; + qos_arg = "--qos-disable"; + break; + case FCP_RESET_IF: op = "--reset"; - if (action && !ff->ff_qos_mask) + break; + default: + return; + break; + } + p->last_action = p->action; + + if (p->action && !ff->ff_qos_mask) return; if (fcm_dcbd_cmd == NULL) { FCM_LOG_DEV_DBG(ff, "Should %s per op state", op); @@ -1860,34 +1721,28 @@ static void fcm_dcbd_setup(struct fcm_fcoe *ff, enum fcoeadm_action action) /* * XXX should wait for child status */ - ff->ff_enabled = action; - rc = fork(); if (rc < 0) { FCM_LOG_ERR(errno, "fork error"); } else if (rc == 0) { /* child process */ for (fd = ulimit(4 /* __UL_GETOPENMAX */ , 0); fd > 2; fd--) close(fd); - qos_arg = "--qos-disable"; snprintf(qos, sizeof(qos), "%s", "0"); - if (action) { - mask = ff->ff_qos_mask; - if (mask) { - int off = 0; - char *sep = ""; - u_int32_t bit; - - while (mask != 0 && off < sizeof(qos) - 1) { - bit = ffs(mask) - 1; - off += - snprintf(qos + off, - sizeof(qos) - off, - "%s%u", - sep, bit); - mask &= ~(1 << bit); - sep = ","; - } - qos_arg = "--qos-enable"; + mask = ff->ff_qos_mask; + if (mask) { + int off = 0; + char *sep = ""; + u_int32_t bit; + + while (mask != 0 && off < sizeof(qos) - 1) { + bit = ffs(mask) - 1; + off += + snprintf(qos + off, + sizeof(qos) - off, + "%s%u", + sep, bit); + mask &= ~(1 << bit); + sep = ","; } } @@ -1897,7 +1752,7 @@ static void fcm_dcbd_setup(struct fcm_fcoe *ff, enum fcoeadm_action action) if (fcoe_config.debug) { debug = "--debug"; - if (!action) + if (!p->action) FCM_LOG_DEV_DBG(ff, "%s %s %s\n", fcm_dcbd_cmd, op, syslog); else @@ -1910,31 +1765,9 @@ static void fcm_dcbd_setup(struct fcm_fcoe *ff, enum fcoeadm_action action) if (rc < 0) FCM_LOG_ERR(errno, "fork error"); else if (rc == 0) { /* child process */ - if (ff->ff_active) - execlp(fcm_dcbd_cmd, fcm_dcbd_cmd, ff->ff_name, - op, qos_arg, qos, debug, syslog, - (char *)NULL); - else - execlp(fcm_dcbd_cmd, fcm_dcbd_cmd, ff->ff_name, - qos_arg, qos, debug, syslog, - (char *)NULL); - } - - /* VLAN interfaces only enable and disable */ - if (action < 0 || action > 1) - exit(1); - - TAILQ_FOREACH(fv, &(ff->ff_vfcoe_head), fv_list) { - if (!fv->fv_active) - continue; - FCM_LOG_DEV_DBG(ff, "%s %s %s %s\n", fcm_dcbd_cmd, - fv->fv_name, op, syslog); - rc = fork(); - if (rc < 0) - FCM_LOG_ERR(errno, "fork error"); - else if (rc == 0) /* child process */ - execlp(fcm_dcbd_cmd, fcm_dcbd_cmd, fv->fv_name, - op, debug, syslog, (char *)NULL); + execlp(fcm_dcbd_cmd, fcm_dcbd_cmd, p->ifname, + p->real_ifname, op, qos_arg, qos, debug, syslog, + (char *)NULL); } exit(1); @@ -1946,9 +1779,10 @@ static void fcm_dcbd_setup(struct fcm_fcoe *ff, enum fcoeadm_action action) * Called for all ports. For FCoE ports and candidates, * get information and send to dcbd. */ -static void fcm_dcbd_port_advance(struct fcm_fcoe *ff) +static void fcm_netif_advance(struct fcm_netif *ff) { char buf[80], params[30]; + int old_qos_mask; ASSERT(ff); ASSERT(fcm_clif); @@ -1956,17 +1790,22 @@ static void fcm_dcbd_port_advance(struct fcm_fcoe *ff) if (fcm_clif->cl_busy) return; + if (ff->response_pending) + return; + + if (sa_timer_active(&ff->dcbd_retry_timer)) + return; + switch (ff->ff_dcbd_state) { case FCD_INIT: - fcm_dcbd_state_set(ff, FCD_GET_DCB_STATE); - /* Fall through */ + case FCD_ERROR: + break; case FCD_GET_DCB_STATE: - fcm_fcoe_get_dcb_settings(ff); snprintf(buf, sizeof(buf), "%c%x%2.2x%2.2x%2.2x%2.2x%s", DCB_CMD, CLIF_RSP_VERSION, CMD_GET_CONFIG, FEATURE_DCB, 0, - (u_int) strlen(ff->ff_name), ff->ff_name); - fcm_dcbd_request(buf); + (u_int) strlen(ff->ifname), ff->ifname); + ff->response_pending = fcm_dcbd_request(buf); break; case FCD_SEND_CONF: snprintf(params, sizeof(params), "%x1%x02%2.2x", @@ -1976,63 +1815,121 @@ static void fcm_dcbd_port_advance(struct fcm_fcoe *ff) snprintf(buf, sizeof(buf), "%c%x%2.2x%2.2x%2.2x%2.2x%s%s", DCB_CMD, CLIF_RSP_VERSION, CMD_SET_CONFIG, FEATURE_APP, APP_FCOE_STYPE, - (u_int) strlen(ff->ff_name), ff->ff_name, params); - fcm_dcbd_request(buf); + (u_int) strlen(ff->ifname), ff->ifname, params); + ff->response_pending = fcm_dcbd_request(buf); break; case FCD_GET_PFC_CONFIG: snprintf(buf, sizeof(buf), "%c%x%2.2x%2.2x%2.2x%2.2x%s%s", DCB_CMD, CLIF_RSP_VERSION, CMD_GET_CONFIG, FEATURE_PFC, 0, - (u_int) strlen(ff->ff_name), ff->ff_name, ""); - fcm_dcbd_request(buf); + (u_int) strlen(ff->ifname), ff->ifname, ""); + ff->response_pending = fcm_dcbd_request(buf); break; case FCD_GET_APP_CONFIG: snprintf(buf, sizeof(buf), "%c%x%2.2x%2.2x%2.2x%2.2x%s%s", DCB_CMD, CLIF_RSP_VERSION, CMD_GET_CONFIG, FEATURE_APP, APP_FCOE_STYPE, - (u_int) strlen(ff->ff_name), ff->ff_name, ""); - fcm_dcbd_request(buf); + (u_int) strlen(ff->ifname), ff->ifname, ""); + ff->response_pending = fcm_dcbd_request(buf); break; case FCD_GET_PFC_OPER: snprintf(buf, sizeof(buf), "%c%x%2.2x%2.2x%2.2x%2.2x%s%s", DCB_CMD, CLIF_RSP_VERSION, CMD_GET_OPER, FEATURE_PFC, 0, - (u_int) strlen(ff->ff_name), ff->ff_name, ""); - fcm_dcbd_request(buf); + (u_int) strlen(ff->ifname), ff->ifname, ""); + ff->response_pending = fcm_dcbd_request(buf); break; case FCD_GET_APP_OPER: snprintf(buf, sizeof(buf), "%c%x%2.2x%2.2x%2.2x%2.2x%s%s", DCB_CMD, CLIF_RSP_VERSION, CMD_GET_OPER, FEATURE_APP, APP_FCOE_STYPE, - (u_int) strlen(ff->ff_name), ff->ff_name, ""); - fcm_dcbd_request(buf); + (u_int) strlen(ff->ifname), ff->ifname, ""); + ff->response_pending = fcm_dcbd_request(buf); break; case FCD_GET_PEER: snprintf(buf, sizeof(buf), "%c%x%2.2x%2.2x%2.2x%2.2x%s%s", DCB_CMD, CLIF_RSP_VERSION, CMD_GET_PEER, FEATURE_APP, APP_FCOE_STYPE, - (u_int) strlen(ff->ff_name), ff->ff_name, ""); - fcm_dcbd_request(buf); + (u_int) strlen(ff->ifname), ff->ifname, ""); + ff->response_pending = fcm_dcbd_request(buf); break; case FCD_DONE: - break; - case FCD_ERROR: + /* keep qos_mask and see if it changed */ + old_qos_mask = ff->ff_qos_mask; + switch (validate_dcbd_info(ff)) { + case FCP_DESTROY_IF: + fcp_action_set(ff->ifname, FCP_DESTROY_IF); + fcm_dcbd_state_set(ff, FCD_INIT); + break; + case FCP_CREATE_IF: + if (!old_qos_mask) { + FCM_LOG_DEV_DBG(ff, "Initial QOS = 0x%x\n", + ff->ff_qos_mask); + fcp_action_set(ff->ifname, FCP_CREATE_IF); + } else if (old_qos_mask == ff->ff_qos_mask) { + fcp_action_set(ff->ifname, FCP_CREATE_IF); + } else { + FCM_LOG_DEV_DBG(ff, "QOS changed to 0x%x\n", + ff->ff_qos_mask); + fcp_action_set(ff->ifname, FCP_RESET_IF); + } + fcm_dcbd_state_set(ff, FCD_INIT); + break; + case FCP_ERROR: + if (ff->dcbd_retry_cnt < DCBD_MAX_REQ_RETRIES) { + fcm_dcbd_state_set(ff, FCD_ERROR); + } else { + fcp_action_set(ff->ifname, FCP_DESTROY_IF); + fcm_dcbd_state_set(ff, FCD_INIT); + } + break; + case FCP_WAIT: + default: + break; + } + break; default: break; } } -static void fcm_dcbd_next(void) + +/* + * Run through these steps at the end of each select loop. + * 1. Process list of network interfaces + * - issue next dcbd query action + * - if query sequence is complete - update FCoE port objects + * as necessary with a CREATE or DESTROY next action. + * 2. Process FCoE port list - handle next actions, update states, clean up +*/ +static void fcm_handle_changes() { - struct fcm_fcoe *ff; + struct fcm_netif *ff; + struct fcoe_port *p; + int i; - TAILQ_FOREACH(ff, &fcm_fcoe_head, ff_list) { - if (fcm_clif->cl_busy) - break; + /* + * Perform pending actions (dcbd queries) on network interfaces. + */ + TAILQ_FOREACH(ff, &fcm_netif_head, ff_list) + fcm_netif_advance(ff); + + /* + * Perform actions on FCoE ports + */ + i = 0; + p = fcoe_config.port; + while (p) { + ff = fcm_netif_lookup(p->real_ifname); + if (!ff) + goto next_port; + + fcm_fcoe_action(ff, p); - if (ff->ff_flags & IFF_LOWER_UP) - fcm_dcbd_port_advance(ff); + p->action = FCP_WAIT; +next_port: + p = p->next; } } @@ -2170,6 +2067,7 @@ int main(int argc, char **argv) fcm_fcoe_init(); fcm_link_init(); /* NETLINK_ROUTE protocol */ fcm_dcbd_init(); + sa_select_set_callback(fcm_handle_changes); rc = sa_select_loop(); if (rc < 0) { @@ -2203,41 +2101,53 @@ static void print_errors(char *buf, int errors) if (errors & 0x01) { flag++; j = sprintf(msg + len, "mismatch with peer"); + len += j; } if (errors & 0x02) { - j = len; - if (flag++) + if (flag++) { j = sprintf(msg + len, ", "); - sprintf(msg + j, "local configuration error"); + len += j; + } + j = sprintf(msg + len, "local configuration error"); + len += j; } if (errors & 0x04) { - j = len; - if (flag++) + if (flag++) { j = sprintf(msg + len, ", "); - sprintf(msg + j, "multiple TLV's received"); + len += j; + } + j = sprintf(msg + len, "multiple TLV's received"); + len += j; } if (errors & 0x08) { - j = len; - if (flag++) + if (flag++) { j = sprintf(msg + len, ", "); - sprintf(msg + j, "peer error"); + len += j; + } + j = sprintf(msg + len, "peer error"); + len += j; } if (errors & 0x10) { - j = len; - if (flag++) + if (flag++) { j = sprintf(msg + len, ", "); - sprintf(msg + j, "multiple LLDP neighbors"); + len += j; + } + j = sprintf(msg + len, "multiple LLDP neighbors"); + len += j; } if (errors & 0x20) { j = len; - if (flag++) + if (flag++) { j = sprintf(msg + len, ", "); - sprintf(msg + j, "peer feature not present"); + len += j; + } + j = sprintf(msg + len, "peer feature not present"); + len += j; } FCM_LOG("%s %s\n", buf, msg); diff --git a/fcoemon.h b/fcoemon.h index 11cb4fb..ad71838 100644 --- a/fcoemon.h +++ b/fcoemon.h @@ -23,7 +23,7 @@ struct fcoe_config { int debug; int use_syslog; - struct fcoe_port_config *port; + struct fcoe_port *port; } fcoe_config; /* @@ -48,12 +48,12 @@ struct fcoe_config { #define FCM_LOG_DEV_DBG(fcm, fmt, args...) \ do { \ if (fcoe_config.debug) \ - sa_log("%s, " fmt, fcm->ff_name, ##args); \ + sa_log("%s, " fmt, fcm->ifname, ##args); \ } while (0) #define FCM_LOG_DEV(fcm, fmt, args...) \ do { \ - sa_log("%s, " fmt, fcm->ff_name, ##args); \ + sa_log("%s, " fmt, fcm->ifname, ##args); \ } while (0) /* @@ -73,6 +73,17 @@ enum fcm_dcbd_state { FCD_ERROR, /* DCB error or port unknown by DCB */ }; +/* + * Action codes for FCoE ports +*/ +enum fcp_action { + FCP_WAIT = 0, /* waiting for something to happen */ + FCP_CREATE_IF, /* create FCoE interface */ + FCP_DESTROY_IF, /* destroy FCoE interface */ + FCP_RESET_IF, /* reset FCoE interface */ + FCP_ERROR, /* error condition */ +}; + #define FCM_DCBD_STATES { \ { "INIT", FCD_INIT }, \ { "GET_DCB_STATE", FCD_GET_DCB_STATE }, \ @@ -103,60 +114,34 @@ struct feature_info { }; /* - * Description of FCoE VLAN interfaces - */ -struct fcm_vfcoe { - TAILQ_ENTRY(fcm_vfcoe) fv_list; - char fv_name[IFNAMSIZ]; - int fv_active; -}; - -TAILQ_HEAD(fcm_vfcoe_head, fcm_vfcoe); - -/* - * Description of potential FCoE interface. + * Description of potential FCoE network interface. */ -struct fcm_fcoe { - TAILQ_ENTRY(fcm_fcoe) ff_list; /* list linkage */ - struct fcm_vfcoe_head ff_vfcoe_head; /* list of fcm_vfcoe */ - u_int32_t ff_ifindex; /* kernel interface index */ - u_int32_t ff_flags; /* kernel interface flags */ - u_int32_t ff_last_flags; /* previously known flags */ +struct fcm_netif { + TAILQ_ENTRY(fcm_netif) ff_list; /* list linkage */ u_int32_t ff_enabled:1; /* operational status */ u_int32_t ff_dcb_state; /* DCB feature state */ struct feature_info ff_pfc_info; /* PFC feature info */ - struct feature_info ff_pfc_saved; /* saved PFC feature info */ struct feature_info ff_app_info; /* App feature info */ - struct feature_info ff_llink_info; /* LLink feature info */ - u_int32_t ff_llink_status; /* LLink status */ - u_int64_t ff_mac; /* MAC address */ - int ff_vlan; /* VLAN ID or -1 if none */ - int ff_active; /* active device */ u_int8_t ff_operstate; /* RFC 2863 operational status */ u_int8_t ff_qos_mask; /* 801.p priority mask */ enum fcm_dcbd_state ff_dcbd_state; /* DCB daemon state */ - struct sa_timer ff_event_timer; /* Event timer */ - char ff_name[IFNAMSIZ];/* Ethernet interface name */ + char ifname[IFNAMSIZ]; /* Ethernet interface name */ + int response_pending; /* dcbd query in progress */ + int dcbd_retry_cnt; /* Number of query attempts */ + struct sa_timer dcbd_retry_timer; /* dcbd retry timer */ }; -TAILQ_HEAD(fcm_fcoe_head, fcm_fcoe); +TAILQ_HEAD(fcm_netif_head, fcm_netif); -struct fcm_fcoe_head fcm_fcoe_head; +struct fcm_netif_head fcm_netif_head; extern char build_date[]; static void fcm_dcbd_init(void); static void fcm_dcbd_shutdown(void); static void fcm_fcoe_init(void); -#ifdef NOT_YET -static struct fcm_fcoe *fcm_fcoe_lookup_mac(u_int64_t ff_mac, int vlan); -static struct fcm_fcoe *fcm_fcoe_lookup_create_mac(u_int64_t ff_mac, int vlan); -#endif -static struct fcm_fcoe *fcm_fcoe_lookup_name(char *name); -static struct fcm_vfcoe *fcm_vfcoe_lookup_name(struct fcm_fcoe *, char *); -static struct fcm_fcoe *fcm_fcoe_lookup_create_ifname(char *); -static struct fcm_vfcoe *fcm_vfcoe_lookup_create_ifname(char *, char *); -static void fcm_fcoe_set_name(struct fcm_fcoe *, char *); -static void fcm_fcoe_get_dcb_settings(struct fcm_fcoe *); +static struct fcm_netif *fcm_netif_lookup(char *); +static struct fcm_netif *fcm_netif_lookup_create(char *); static int fcm_link_init(void); +static void fcm_dcbd_state_set(struct fcm_netif *, enum fcm_dcbd_state); #endif /* _FCOEMON_H_ */ diff --git a/fcoeplumb.in b/fcoeplumb.in index 0445999..1721b60 100755 --- a/fcoeplumb.in +++ b/fcoeplumb.in @@ -22,7 +22,7 @@ cmdname=`basename $0` usage() { echo usage: $cmdname \ - '<ethX> [--reset | --create | --destroy] [--debug] [--syslog]' \ + '<ifname real_ifname> [--reset | --create | --destroy] [--debug] [--syslog]' \ '[--qos-disable | --qos-enable <pri>[,<pri>]...]' >&2 exit 1 } @@ -235,12 +235,14 @@ config_logging() fi } -[ "$#" -lt 1 ] && usage +[ "$#" -lt 2 ] && usage [ ${DEBUG_LOGGING} ] && $LOGGER "fcoeplumb arguments: ($*)" ifname=$1 shift +real_ifname=$1 +shift while [ "$#" -ge 1 ] do @@ -282,8 +284,8 @@ done # This must be the first to do after parsing the command arguments! # Notice that the filter ID is used in find_skbedit_filter(), # add_skbedit_filter(), replace_skbedit_filter(). -fcoe_filter_id=`get_filter_id $ifname $FCOE_FILTER_KEY` -fip_filter_id=`get_filter_id $ifname $FIP_FILTER_KEY` +fcoe_filter_id=`get_filter_id $real_ifname $FCOE_FILTER_KEY` +fip_filter_id=`get_filter_id $real_ifname $FIP_FILTER_KEY` if [ "$cmd" == "destroy" ]; then remove_fcoe_interface $ifname @@ -294,14 +296,14 @@ fi if [ "$qos_list" == "disable" ]; then # Remove the FCoE filters - find_skbedit_filter $ifname $FCOE_ETHERTYPE $fcoe_filter_id + find_skbedit_filter $real_ifname $FCOE_ETHERTYPE $fcoe_filter_id found_filter=$? - [ $found_filter -le 7 ] && delete_skbedit_filter $ifname $found_filter $FCOE_ETHERTYPE $fcoe_filter_id + [ $found_filter -le 7 ] && delete_skbedit_filter $real_ifname $found_filter $FCOE_ETHERTYPE $fcoe_filter_id # Remove the FIP filters - find_skbedit_filter $ifname $FIP_ETHERTYPE $fip_filter_id + find_skbedit_filter $real_ifname $FIP_ETHERTYPE $fip_filter_id found_filter=$? - [ $found_filter -le 7 ] && delete_skbedit_filter $ifname $found_filter $FIP_ETHERTYPE $fip_filter_id + [ $found_filter -le 7 ] && delete_skbedit_filter $real_ifname $found_filter $FIP_ETHERTYPE $fip_filter_id elif [ -n $qos_list ]; then # @@ -324,6 +326,7 @@ elif [ -n $qos_list ]; then *) echo "$cmdname: bad QOS value '$1'" >&2 usage + ;; esac if [ -z "$QOS_BEST" ]; then @@ -338,7 +341,7 @@ elif [ -n $qos_list ]; then # If the best QOS is not found, do nothing. [ -z "$QOS_BEST" ] && exit 0 - [ ${DEBUG_LOGGING} ] && $LOGGER "$ifname - Choosing QOS '$QOS_BEST'" + [ ${DEBUG_LOGGING} ] && $LOGGER "$real_ifname - Choosing QOS '$QOS_BEST'" # # Setup the traffic classifier for FCoE @@ -346,45 +349,45 @@ elif [ -n $qos_list ]; then # qos_queue=`expr $QOS_BEST` - find_multiq_qdisc $ifname + find_multiq_qdisc $real_ifname found_qdisc=$? if [ $found_qdisc -eq 1 ]; then # Adjust the FCoE filter - [ ${DEBUG_LOGGING} ] && $LOGGER "$ifname: Qdisc is found" - find_skbedit_filter $ifname $FCOE_ETHERTYPE $fcoe_filter_id + [ ${DEBUG_LOGGING} ] && $LOGGER "$real_ifname: Qdisc is found" + find_skbedit_filter $real_ifname $FCOE_ETHERTYPE $fcoe_filter_id found_filter=$? if [ $found_filter -gt 7 ]; then - add_skbedit_filter $ifname $qdisc_id $qos_queue \ + add_skbedit_filter $real_ifname $qdisc_id $qos_queue \ $FCOE_ETHERTYPE $fcoe_filter_id elif [ $found_filter -ne $qos_queue ]; then [ ${DEBUG_LOGGING} ] && $LOGGER \ - "$ifname: Filter is found and QOS is different" - replace_skbedit_filter $ifname $qos_queue $FCOE_ETHERTYPE $fcoe_filter_id + "$real_ifname: Filter is found and QOS is different" + replace_skbedit_filter $real_ifname $qos_queue $FCOE_ETHERTYPE $fcoe_filter_id else [ ${DEBUG_LOGGING} ] && $LOGGER \ - "$ifname: Filter is found and is identical" + "$real_ifname: Filter is found and is identical" fi # Adjust the FIP filter - [ ${DEBUG_LOGGING} ] && $LOGGER "$ifname: Qdisc is found" - find_skbedit_filter $ifname $FIP_ETHERTYPE $fip_filter_id + [ ${DEBUG_LOGGING} ] && $LOGGER "$real_ifname: Qdisc is found" + find_skbedit_filter $real_ifname $FIP_ETHERTYPE $fip_filter_id found_filter=$? if [ $found_filter -gt 7 ]; then - add_skbedit_filter $ifname $qdisc_id $qos_queue \ + add_skbedit_filter $real_ifname $qdisc_id $qos_queue \ $FIP_ETHERTYPE $fip_filter_id elif [ $found_filter -ne $qos_queue ]; then [ ${DEBUG_LOGGING} ] && $LOGGER \ "$ifname: Filter is found and QOS is different" - replace_skbedit_filter $ifname $qos_queue $FIP_ETHERTYPE $fip_filter_id + replace_skbedit_filter $real_ifname $qos_queue $FIP_ETHERTYPE $fip_filter_id else [ ${DEBUG_LOGGING} ] && $LOGGER \ - "$ifname: Filter is found and is identical" + "$real_ifname: Filter is found and is identical" fi else - add_multiq_qdisc $ifname $qdisc_id - add_skbedit_filter $ifname $qdisc_id $qos_queue $FCOE_ETHERTYPE $fcoe_filter_id - add_skbedit_filter $ifname $qdisc_id $qos_queue $FIP_ETHERTYPE $fip_filter_id + add_multiq_qdisc $real_ifname $qdisc_id + add_skbedit_filter $real_ifname $qdisc_id $qos_queue $FCOE_ETHERTYPE $fcoe_filter_id + add_skbedit_filter $real_ifname $qdisc_id $qos_queue $FIP_ETHERTYPE $fip_filter_id fi fi diff --git a/include/scsi/fc/fc_els.h b/include/scsi/fc/fc_els.h new file mode 100644 index 0000000..f943281 --- /dev/null +++ b/include/scsi/fc/fc_els.h @@ -0,0 +1,820 @@ +/* + * Copyright(c) 2007 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ + +#ifndef _FC_ELS_H_ +#define _FC_ELS_H_ + +#include <linux/types.h> + +/* + * Fibre Channel Switch - Enhanced Link Services definitions. + * From T11 FC-LS Rev 1.2 June 7, 2005. + */ + +/* + * ELS Command codes - byte 0 of the frame payload + */ +enum fc_els_cmd { + ELS_LS_RJT = 0x01, /* ESL reject */ + ELS_LS_ACC = 0x02, /* ESL Accept */ + ELS_PLOGI = 0x03, /* N_Port login */ + ELS_FLOGI = 0x04, /* F_Port login */ + ELS_LOGO = 0x05, /* Logout */ + ELS_ABTX = 0x06, /* Abort exchange - obsolete */ + ELS_RCS = 0x07, /* read connection status */ + ELS_RES = 0x08, /* read exchange status block */ + ELS_RSS = 0x09, /* read sequence status block */ + ELS_RSI = 0x0a, /* read sequence initiative */ + ELS_ESTS = 0x0b, /* establish streaming */ + ELS_ESTC = 0x0c, /* estimate credit */ + ELS_ADVC = 0x0d, /* advise credit */ + ELS_RTV = 0x0e, /* read timeout value */ + ELS_RLS = 0x0f, /* read link error status block */ + ELS_ECHO = 0x10, /* echo */ + ELS_TEST = 0x11, /* test */ + ELS_RRQ = 0x12, /* reinstate recovery qualifier */ + ELS_REC = 0x13, /* read exchange concise */ + ELS_SRR = 0x14, /* sequence retransmission request */ + ELS_PRLI = 0x20, /* process login */ + ELS_PRLO = 0x21, /* process logout */ + ELS_SCN = 0x22, /* state change notification */ + ELS_TPLS = 0x23, /* test process login state */ + ELS_TPRLO = 0x24, /* third party process logout */ + ELS_LCLM = 0x25, /* login control list mgmt (obs) */ + ELS_GAID = 0x30, /* get alias_ID */ + ELS_FACT = 0x31, /* fabric activate alias_id */ + ELS_FDACDT = 0x32, /* fabric deactivate alias_id */ + ELS_NACT = 0x33, /* N-port activate alias_id */ + ELS_NDACT = 0x34, /* N-port deactivate alias_id */ + ELS_QOSR = 0x40, /* quality of service request */ + ELS_RVCS = 0x41, /* read virtual circuit status */ + ELS_PDISC = 0x50, /* discover N_port service params */ + ELS_FDISC = 0x51, /* discover F_port service params */ + ELS_ADISC = 0x52, /* discover address */ + ELS_RNC = 0x53, /* report node cap (obs) */ + ELS_FARP_REQ = 0x54, /* FC ARP request */ + ELS_FARP_REPL = 0x55, /* FC ARP reply */ + ELS_RPS = 0x56, /* read port status block */ + ELS_RPL = 0x57, /* read port list */ + ELS_RPBC = 0x58, /* read port buffer condition */ + ELS_FAN = 0x60, /* fabric address notification */ + ELS_RSCN = 0x61, /* registered state change notification */ + ELS_SCR = 0x62, /* state change registration */ + ELS_RNFT = 0x63, /* report node FC-4 types */ + ELS_CSR = 0x68, /* clock synch. request */ + ELS_CSU = 0x69, /* clock synch. update */ + ELS_LINIT = 0x70, /* loop initialize */ + ELS_LSTS = 0x72, /* loop status */ + ELS_RNID = 0x78, /* request node ID data */ + ELS_RLIR = 0x79, /* registered link incident report */ + ELS_LIRR = 0x7a, /* link incident record registration */ + ELS_SRL = 0x7b, /* scan remote loop */ + ELS_SBRP = 0x7c, /* set bit-error reporting params */ + ELS_RPSC = 0x7d, /* report speed capabilities */ + ELS_QSA = 0x7e, /* query security attributes */ + ELS_EVFP = 0x7f, /* exchange virt. fabrics params */ + ELS_LKA = 0x80, /* link keep-alive */ + ELS_AUTH_ELS = 0x90, /* authentication ELS */ +}; + +/* + * Initializer useful for decoding table. + * Please keep this in sync with the above definitions. + */ +#define FC_ELS_CMDS_INIT { \ + [ELS_LS_RJT] = "LS_RJT", \ + [ELS_LS_ACC] = "LS_ACC", \ + [ELS_PLOGI] = "PLOGI", \ + [ELS_FLOGI] = "FLOGI", \ + [ELS_LOGO] = "LOGO", \ + [ELS_ABTX] = "ABTX", \ + [ELS_RCS] = "RCS", \ + [ELS_RES] = "RES", \ + [ELS_RSS] = "RSS", \ + [ELS_RSI] = "RSI", \ + [ELS_ESTS] = "ESTS", \ + [ELS_ESTC] = "ESTC", \ + [ELS_ADVC] = "ADVC", \ + [ELS_RTV] = "RTV", \ + [ELS_RLS] = "RLS", \ + [ELS_ECHO] = "ECHO", \ + [ELS_TEST] = "TEST", \ + [ELS_RRQ] = "RRQ", \ + [ELS_REC] = "REC", \ + [ELS_SRR] = "SRR", \ + [ELS_PRLI] = "PRLI", \ + [ELS_PRLO] = "PRLO", \ + [ELS_SCN] = "SCN", \ + [ELS_TPLS] = "TPLS", \ + [ELS_TPRLO] = "TPRLO", \ + [ELS_LCLM] = "LCLM", \ + [ELS_GAID] = "GAID", \ + [ELS_FACT] = "FACT", \ + [ELS_FDACDT] = "FDACDT", \ + [ELS_NACT] = "NACT", \ + [ELS_NDACT] = "NDACT", \ + [ELS_QOSR] = "QOSR", \ + [ELS_RVCS] = "RVCS", \ + [ELS_PDISC] = "PDISC", \ + [ELS_FDISC] = "FDISC", \ + [ELS_ADISC] = "ADISC", \ + [ELS_RNC] = "RNC", \ + [ELS_FARP_REQ] = "FARP_REQ", \ + [ELS_FARP_REPL] = "FARP_REPL", \ + [ELS_RPS] = "RPS", \ + [ELS_RPL] = "RPL", \ + [ELS_RPBC] = "RPBC", \ + [ELS_FAN] = "FAN", \ + [ELS_RSCN] = "RSCN", \ + [ELS_SCR] = "SCR", \ + [ELS_RNFT] = "RNFT", \ + [ELS_CSR] = "CSR", \ + [ELS_CSU] = "CSU", \ + [ELS_LINIT] = "LINIT", \ + [ELS_LSTS] = "LSTS", \ + [ELS_RNID] = "RNID", \ + [ELS_RLIR] = "RLIR", \ + [ELS_LIRR] = "LIRR", \ + [ELS_SRL] = "SRL", \ + [ELS_SBRP] = "SBRP", \ + [ELS_RPSC] = "RPSC", \ + [ELS_QSA] = "QSA", \ + [ELS_EVFP] = "EVFP", \ + [ELS_LKA] = "LKA", \ + [ELS_AUTH_ELS] = "AUTH_ELS", \ +} + +/* + * LS_ACC payload. + */ +struct fc_els_ls_acc { + __u8 la_cmd; /* command code ELS_LS_ACC */ + __u8 la_resv[3]; /* reserved */ +}; + +/* + * ELS reject payload. + */ +struct fc_els_ls_rjt { + __u8 er_cmd; /* command code ELS_LS_RJT */ + __u8 er_resv[4]; /* reserved must be zero */ + __u8 er_reason; /* reason (enum fc_els_rjt_reason below) */ + __u8 er_explan; /* explanation (enum fc_els_rjt_explan below) */ + __u8 er_vendor; /* vendor specific code */ +}; + +/* + * ELS reject reason codes (er_reason). + */ +enum fc_els_rjt_reason { + ELS_RJT_NONE = 0, /* no reject - not to be sent */ + ELS_RJT_INVAL = 0x01, /* invalid ELS command code */ + ELS_RJT_LOGIC = 0x03, /* logical error */ + ELS_RJT_BUSY = 0x05, /* logical busy */ + ELS_RJT_PROT = 0x07, /* protocol error */ + ELS_RJT_UNAB = 0x09, /* unable to perform command request */ + ELS_RJT_UNSUP = 0x0b, /* command not supported */ + ELS_RJT_INPROG = 0x0e, /* command already in progress */ + ELS_RJT_VENDOR = 0xff, /* vendor specific error */ +}; + + +/* + * reason code explanation (er_explan). + */ +enum fc_els_rjt_explan { + ELS_EXPL_NONE = 0x00, /* No additional explanation */ + ELS_EXPL_SPP_OPT_ERR = 0x01, /* service parameter error - options */ + ELS_EXPL_SPP_ICTL_ERR = 0x03, /* service parm error - initiator ctl */ + ELS_EXPL_AH = 0x11, /* invalid association header */ + ELS_EXPL_AH_REQ = 0x13, /* association_header required */ + ELS_EXPL_SID = 0x15, /* invalid originator S_ID */ + ELS_EXPL_OXID_RXID = 0x17, /* invalid OX_ID-RX_ID combination */ + ELS_EXPL_INPROG = 0x19, /* Request already in progress */ + ELS_EXPL_PLOGI_REQD = 0x1e, /* N_Port login required */ + ELS_EXPL_INSUF_RES = 0x29, /* insufficient resources */ + ELS_EXPL_UNAB_DATA = 0x2a, /* unable to supply requested data */ + ELS_EXPL_UNSUPR = 0x2c, /* Request not supported */ + ELS_EXPL_INV_LEN = 0x2d, /* Invalid payload length */ + /* TBD - above definitions incomplete */ +}; + +/* + * Common service parameters (N ports). + */ +struct fc_els_csp { + __u8 sp_hi_ver; /* highest version supported (obs.) */ + __u8 sp_lo_ver; /* highest version supported (obs.) */ + __be16 sp_bb_cred; /* buffer-to-buffer credits */ + __be16 sp_features; /* common feature flags */ + __be16 sp_bb_data; /* b-b state number and data field sz */ + union { + struct { + __be16 _sp_tot_seq; /* total concurrent sequences */ + __be16 _sp_rel_off; /* rel. offset by info cat */ + } sp_plogi; + struct { + __be32 _sp_r_a_tov; /* resource alloc. timeout msec */ + } sp_flogi_acc; + } sp_u; + __be32 sp_e_d_tov; /* error detect timeout value */ +}; +#define sp_tot_seq sp_u.sp_plogi._sp_tot_seq +#define sp_rel_off sp_u.sp_plogi._sp_rel_off +#define sp_r_a_tov sp_u.sp_flogi_acc._sp_r_a_tov + +#define FC_SP_BB_DATA_MASK 0xfff /* mask for data field size in sp_bb_data */ + +/* + * Minimum and maximum values for max data field size in service parameters. + */ +#define FC_SP_MIN_MAX_PAYLOAD FC_MIN_MAX_PAYLOAD +#define FC_SP_MAX_MAX_PAYLOAD FC_MAX_PAYLOAD + +/* + * sp_features + */ +#define FC_SP_FT_NPIV 0x8000 /* multiple N_Port_ID support (FLOGI) */ +#define FC_SP_FT_CIRO 0x8000 /* continuously increasing rel off (PLOGI) */ +#define FC_SP_FT_CLAD 0x8000 /* clean address (in FLOGI LS_ACC) */ +#define FC_SP_FT_RAND 0x4000 /* random relative offset */ +#define FC_SP_FT_VAL 0x2000 /* valid vendor version level */ +#define FC_SP_FT_NPIV_ACC 0x2000 /* NPIV assignment (FLOGI LS_ACC) */ +#define FC_SP_FT_FPORT 0x1000 /* F port (1) vs. N port (0) */ +#define FC_SP_FT_ABB 0x0800 /* alternate BB_credit management */ +#define FC_SP_FT_EDTR 0x0400 /* E_D_TOV Resolution is nanoseconds */ +#define FC_SP_FT_MCAST 0x0200 /* multicast */ +#define FC_SP_FT_BCAST 0x0100 /* broadcast */ +#define FC_SP_FT_HUNT 0x0080 /* hunt group */ +#define FC_SP_FT_SIMP 0x0040 /* dedicated simplex */ +#define FC_SP_FT_SEC 0x0020 /* reserved for security */ +#define FC_SP_FT_CSYN 0x0010 /* clock synch. supported */ +#define FC_SP_FT_RTTOV 0x0008 /* R_T_TOV value 100 uS, else 100 mS */ +#define FC_SP_FT_HALF 0x0004 /* dynamic half duplex */ +#define FC_SP_FT_SEQC 0x0002 /* SEQ_CNT */ +#define FC_SP_FT_PAYL 0x0001 /* FLOGI payload length 256, else 116 */ + +/* + * Class-specific service parameters. + */ +struct fc_els_cssp { + __be16 cp_class; /* class flags */ + __be16 cp_init; /* initiator flags */ + __be16 cp_recip; /* recipient flags */ + __be16 cp_rdfs; /* receive data field size */ + __be16 cp_con_seq; /* concurrent sequences */ + __be16 cp_ee_cred; /* N-port end-to-end credit */ + __u8 cp_resv1; /* reserved */ + __u8 cp_open_seq; /* open sequences per exchange */ + __u8 _cp_resv2[2]; /* reserved */ +}; + +/* + * cp_class flags. + */ +#define FC_CPC_VALID 0x8000 /* class valid */ +#define FC_CPC_IMIX 0x4000 /* intermix mode */ +#define FC_CPC_SEQ 0x0800 /* sequential delivery */ +#define FC_CPC_CAMP 0x0200 /* camp-on */ +#define FC_CPC_PRI 0x0080 /* priority */ + +/* + * cp_init flags. + * (TBD: not all flags defined here). + */ +#define FC_CPI_CSYN 0x0010 /* clock synch. capable */ + +/* + * cp_recip flags. + */ +#define FC_CPR_CSYN 0x0008 /* clock synch. capable */ + +/* + * NFC_ELS_FLOGI: Fabric login request. + * NFC_ELS_PLOGI: Port login request (same format). + */ +struct fc_els_flogi { + __u8 fl_cmd; /* command */ + __u8 _fl_resvd[3]; /* must be zero */ + struct fc_els_csp fl_csp; /* common service parameters */ + __be64 fl_wwpn; /* port name */ + __be64 fl_wwnn; /* node name */ + struct fc_els_cssp fl_cssp[4]; /* class 1-4 service parameters */ + __u8 fl_vend[16]; /* vendor version level */ +} __attribute__((__packed__)); + +/* + * Process login service parameter page. + */ +struct fc_els_spp { + __u8 spp_type; /* type code or common service params */ + __u8 spp_type_ext; /* type code extension */ + __u8 spp_flags; + __u8 _spp_resvd; + __be32 spp_orig_pa; /* originator process associator */ + __be32 spp_resp_pa; /* responder process associator */ + __be32 spp_params; /* service parameters */ +}; + +/* + * spp_flags. + */ +#define FC_SPP_OPA_VAL 0x80 /* originator proc. assoc. valid */ +#define FC_SPP_RPA_VAL 0x40 /* responder proc. assoc. valid */ +#define FC_SPP_EST_IMG_PAIR 0x20 /* establish image pair */ +#define FC_SPP_RESP_MASK 0x0f /* mask for response code (below) */ + +/* + * SPP response code in spp_flags - lower 4 bits. + */ +enum fc_els_spp_resp { + FC_SPP_RESP_ACK = 1, /* request executed */ + FC_SPP_RESP_RES = 2, /* unable due to lack of resources */ + FC_SPP_RESP_INIT = 3, /* initialization not complete */ + FC_SPP_RESP_NO_PA = 4, /* unknown process associator */ + FC_SPP_RESP_CONF = 5, /* configuration precludes image pair */ + FC_SPP_RESP_COND = 6, /* request completed conditionally */ + FC_SPP_RESP_MULT = 7, /* unable to handle multiple SPPs */ + FC_SPP_RESP_INVL = 8, /* SPP is invalid */ +}; + +/* + * ELS_RRQ - Reinstate Recovery Qualifier + */ +struct fc_els_rrq { + __u8 rrq_cmd; /* command (0x12) */ + __u8 rrq_zero[3]; /* specified as zero - part of cmd */ + __u8 rrq_resvd; /* reserved */ + __u8 rrq_s_id[3]; /* originator FID */ + __be16 rrq_ox_id; /* originator exchange ID */ + __be16 rrq_rx_id; /* responders exchange ID */ +}; + +/* + * ELS_REC - Read exchange concise. + */ +struct fc_els_rec { + __u8 rec_cmd; /* command (0x13) */ + __u8 rec_zero[3]; /* specified as zero - part of cmd */ + __u8 rec_resvd; /* reserved */ + __u8 rec_s_id[3]; /* originator FID */ + __be16 rec_ox_id; /* originator exchange ID */ + __be16 rec_rx_id; /* responders exchange ID */ +}; + +/* + * ELS_REC LS_ACC payload. + */ +struct fc_els_rec_acc { + __u8 reca_cmd; /* accept (0x02) */ + __u8 reca_zero[3]; /* specified as zero - part of cmd */ + __be16 reca_ox_id; /* originator exchange ID */ + __be16 reca_rx_id; /* responders exchange ID */ + __u8 reca_resvd1; /* reserved */ + __u8 reca_ofid[3]; /* originator FID */ + __u8 reca_resvd2; /* reserved */ + __u8 reca_rfid[3]; /* responder FID */ + __be32 reca_fc4value; /* FC4 value */ + __be32 reca_e_stat; /* ESB (exchange status block) status */ +}; + +/* + * ELS_PRLI - Process login request and response. + */ +struct fc_els_prli { + __u8 prli_cmd; /* command */ + __u8 prli_spp_len; /* length of each serv. parm. page */ + __be16 prli_len; /* length of entire payload */ + /* service parameter pages follow */ +}; + +/* + * ELS_ADISC payload + */ +struct fc_els_adisc { + __u8 adisc_cmd; + __u8 adisc_resv[3]; + __u8 adisc_resv1; + __u8 adisc_hard_addr[3]; + __be64 adisc_wwpn; + __be64 adisc_wwnn; + __u8 adisc_resv2; + __u8 adisc_port_id[3]; +} __attribute__((__packed__)); + +/* + * ELS_LOGO - process or fabric logout. + */ +struct fc_els_logo { + __u8 fl_cmd; /* command code */ + __u8 fl_zero[3]; /* specified as zero - part of cmd */ + __u8 fl_resvd; /* reserved */ + __u8 fl_n_port_id[3];/* N port ID */ + __be64 fl_n_port_wwn; /* port name */ +}; + +/* + * ELS_RTV - read timeout value. + */ +struct fc_els_rtv { + __u8 rtv_cmd; /* command code 0x0e */ + __u8 rtv_zero[3]; /* specified as zero - part of cmd */ +}; + +/* + * LS_ACC for ELS_RTV - read timeout value. + */ +struct fc_els_rtv_acc { + __u8 rtv_cmd; /* command code 0x02 */ + __u8 rtv_zero[3]; /* specified as zero - part of cmd */ + __be32 rtv_r_a_tov; /* resource allocation timeout value */ + __be32 rtv_e_d_tov; /* error detection timeout value */ + __be32 rtv_toq; /* timeout qualifier (see below) */ +}; + +/* + * rtv_toq bits. + */ +#define FC_ELS_RTV_EDRES (1 << 26) /* E_D_TOV resolution is nS else mS */ +#define FC_ELS_RTV_RTTOV (1 << 19) /* R_T_TOV is 100 uS else 100 mS */ + +/* + * ELS_SCR - state change registration payload. + */ +struct fc_els_scr { + __u8 scr_cmd; /* command code */ + __u8 scr_resv[6]; /* reserved */ + __u8 scr_reg_func; /* registration function (see below) */ +}; + +enum fc_els_scr_func { + ELS_SCRF_FAB = 1, /* fabric-detected registration */ + ELS_SCRF_NPORT = 2, /* Nx_Port-detected registration */ + ELS_SCRF_FULL = 3, /* full registration */ + ELS_SCRF_CLEAR = 255, /* remove any current registrations */ +}; + +/* + * ELS_RSCN - registered state change notification payload. + */ +struct fc_els_rscn { + __u8 rscn_cmd; /* RSCN opcode (0x61) */ + __u8 rscn_page_len; /* page length (4) */ + __be16 rscn_plen; /* payload length including this word */ + + /* followed by 4-byte generic affected Port_ID pages */ +}; + +struct fc_els_rscn_page { + __u8 rscn_page_flags; /* event and address format */ + __u8 rscn_fid[3]; /* fabric ID */ +}; + +#define ELS_RSCN_EV_QUAL_BIT 2 /* shift count for event qualifier */ +#define ELS_RSCN_EV_QUAL_MASK 0xf /* mask for event qualifier */ +#define ELS_RSCN_ADDR_FMT_BIT 0 /* shift count for address format */ +#define ELS_RSCN_ADDR_FMT_MASK 0x3 /* mask for address format */ + +enum fc_els_rscn_ev_qual { + ELS_EV_QUAL_NONE = 0, /* unspecified */ + ELS_EV_QUAL_NS_OBJ = 1, /* changed name server object */ + ELS_EV_QUAL_PORT_ATTR = 2, /* changed port attribute */ + ELS_EV_QUAL_SERV_OBJ = 3, /* changed service object */ + ELS_EV_QUAL_SW_CONFIG = 4, /* changed switch configuration */ + ELS_EV_QUAL_REM_OBJ = 5, /* removed object */ +}; + +enum fc_els_rscn_addr_fmt { + ELS_ADDR_FMT_PORT = 0, /* rscn_fid is a port address */ + ELS_ADDR_FMT_AREA = 1, /* rscn_fid is a area address */ + ELS_ADDR_FMT_DOM = 2, /* rscn_fid is a domain address */ + ELS_ADDR_FMT_FAB = 3, /* anything on fabric may have changed */ +}; + +/* + * ELS_RNID - request Node ID. + */ +struct fc_els_rnid { + __u8 rnid_cmd; /* RNID opcode (0x78) */ + __u8 rnid_resv[3]; /* reserved */ + __u8 rnid_fmt; /* data format */ + __u8 rnid_resv2[3]; /* reserved */ +}; + +/* + * Node Identification Data formats (rnid_fmt) + */ +enum fc_els_rnid_fmt { + ELS_RNIDF_NONE = 0, /* no specific identification data */ + ELS_RNIDF_GEN = 0xdf, /* general topology discovery format */ +}; + +/* + * ELS_RNID response. + */ +struct fc_els_rnid_resp { + __u8 rnid_cmd; /* response code (LS_ACC) */ + __u8 rnid_resv[3]; /* reserved */ + __u8 rnid_fmt; /* data format */ + __u8 rnid_cid_len; /* common ID data length */ + __u8 rnid_resv2; /* reserved */ + __u8 rnid_sid_len; /* specific ID data length */ +}; + +struct fc_els_rnid_cid { + __be64 rnid_wwpn; /* N port name */ + __be64 rnid_wwnn; /* node name */ +}; + +struct fc_els_rnid_gen { + __u8 rnid_vend_id[16]; /* vendor-unique ID */ + __be32 rnid_atype; /* associated type (see below) */ + __be32 rnid_phys_port; /* physical port number */ + __be32 rnid_att_nodes; /* number of attached nodes */ + __u8 rnid_node_mgmt; /* node management (see below) */ + __u8 rnid_ip_ver; /* IP version (see below) */ + __be16 rnid_prot_port; /* UDP / TCP port number */ + __be32 rnid_ip_addr[4]; /* IP address */ + __u8 rnid_resvd[2]; /* reserved */ + __be16 rnid_vend_spec; /* vendor-specific field */ +}; + +enum fc_els_rnid_atype { + ELS_RNIDA_UNK = 0x01, /* unknown */ + ELS_RNIDA_OTHER = 0x02, /* none of the following */ + ELS_RNIDA_HUB = 0x03, + ELS_RNIDA_SWITCH = 0x04, + ELS_RNIDA_GATEWAY = 0x05, + ELS_RNIDA_CONV = 0x06, /* Obsolete, do not use this value */ + ELS_RNIDA_HBA = 0x07, /* Obsolete, do not use this value */ + ELS_RNIDA_PROXY = 0x08, /* Obsolete, do not use this value */ + ELS_RNIDA_STORAGE = 0x09, + ELS_RNIDA_HOST = 0x0a, + ELS_RNIDA_SUBSYS = 0x0b, /* storage subsystem (e.g., RAID) */ + ELS_RNIDA_ACCESS = 0x0e, /* access device (e.g. media changer) */ + ELS_RNIDA_NAS = 0x11, /* NAS server */ + ELS_RNIDA_BRIDGE = 0x12, /* bridge */ + ELS_RNIDA_VIRT = 0x13, /* virtualization device */ + ELS_RNIDA_MF = 0xff, /* multifunction device (bits below) */ + ELS_RNIDA_MF_HUB = 1UL << 31, /* hub */ + ELS_RNIDA_MF_SW = 1UL << 30, /* switch */ + ELS_RNIDA_MF_GW = 1UL << 29, /* gateway */ + ELS_RNIDA_MF_ST = 1UL << 28, /* storage */ + ELS_RNIDA_MF_HOST = 1UL << 27, /* host */ + ELS_RNIDA_MF_SUB = 1UL << 26, /* storage subsystem */ + ELS_RNIDA_MF_ACC = 1UL << 25, /* storage access dev */ + ELS_RNIDA_MF_WDM = 1UL << 24, /* wavelength division mux */ + ELS_RNIDA_MF_NAS = 1UL << 23, /* NAS server */ + ELS_RNIDA_MF_BR = 1UL << 22, /* bridge */ + ELS_RNIDA_MF_VIRT = 1UL << 21, /* virtualization device */ +}; + +enum fc_els_rnid_mgmt { + ELS_RNIDM_SNMP = 0, + ELS_RNIDM_TELNET = 1, + ELS_RNIDM_HTTP = 2, + ELS_RNIDM_HTTPS = 3, + ELS_RNIDM_XML = 4, /* HTTP + XML */ +}; + +enum fc_els_rnid_ipver { + ELS_RNIDIP_NONE = 0, /* no IP support or node mgmt. */ + ELS_RNIDIP_V4 = 1, /* IPv4 */ + ELS_RNIDIP_V6 = 2, /* IPv6 */ +}; + +/* + * ELS RPL - Read Port List. + */ +struct fc_els_rpl { + __u8 rpl_cmd; /* command */ + __u8 rpl_resv[5]; /* reserved - must be zero */ + __be16 rpl_max_size; /* maximum response size or zero */ + __u8 rpl_resv1; /* reserved - must be zero */ + __u8 rpl_index[3]; /* starting index */ +}; + +/* + * Port number block in RPL response. + */ +struct fc_els_pnb { + __be32 pnb_phys_pn; /* physical port number */ + __u8 pnb_resv; /* reserved */ + __u8 pnb_port_id[3]; /* port ID */ + __be64 pnb_wwpn; /* port name */ +}; + +/* + * RPL LS_ACC response. + */ +struct fc_els_rpl_resp { + __u8 rpl_cmd; /* ELS_LS_ACC */ + __u8 rpl_resv1; /* reserved - must be zero */ + __be16 rpl_plen; /* payload length */ + __u8 rpl_resv2; /* reserved - must be zero */ + __u8 rpl_llen[3]; /* list length */ + __u8 rpl_resv3; /* reserved - must be zero */ + __u8 rpl_index[3]; /* starting index */ + struct fc_els_pnb rpl_pnb[1]; /* variable number of PNBs */ +}; + +/* + * Link Error Status Block. + */ +struct fc_els_lesb { + __be32 lesb_link_fail; /* link failure count */ + __be32 lesb_sync_loss; /* loss of synchronization count */ + __be32 lesb_sig_loss; /* loss of signal count */ + __be32 lesb_prim_err; /* primitive sequence error count */ + __be32 lesb_inv_word; /* invalid transmission word count */ + __be32 lesb_inv_crc; /* invalid CRC count */ +}; + +/* + * ELS RPS - Read Port Status Block request. + */ +struct fc_els_rps { + __u8 rps_cmd; /* command */ + __u8 rps_resv[2]; /* reserved - must be zero */ + __u8 rps_flag; /* flag - see below */ + __be64 rps_port_spec; /* port selection */ +}; + +enum fc_els_rps_flag { + FC_ELS_RPS_DID = 0x00, /* port identified by D_ID of req. */ + FC_ELS_RPS_PPN = 0x01, /* port_spec is physical port number */ + FC_ELS_RPS_WWPN = 0x02, /* port_spec is port WWN */ +}; + +/* + * ELS RPS LS_ACC response. + */ +struct fc_els_rps_resp { + __u8 rps_cmd; /* command - LS_ACC */ + __u8 rps_resv[2]; /* reserved - must be zero */ + __u8 rps_flag; /* flag - see below */ + __u8 rps_resv2[2]; /* reserved */ + __be16 rps_status; /* port status - see below */ + struct fc_els_lesb rps_lesb; /* link error status block */ +}; + +enum fc_els_rps_resp_flag { + FC_ELS_RPS_LPEV = 0x01, /* L_port extension valid */ +}; + +enum fc_els_rps_resp_status { + FC_ELS_RPS_PTP = 1 << 5, /* point-to-point connection */ + FC_ELS_RPS_LOOP = 1 << 4, /* loop mode */ + FC_ELS_RPS_FAB = 1 << 3, /* fabric present */ + FC_ELS_RPS_NO_SIG = 1 << 2, /* loss of signal */ + FC_ELS_RPS_NO_SYNC = 1 << 1, /* loss of synchronization */ + FC_ELS_RPS_RESET = 1 << 0, /* in link reset protocol */ +}; + +/* + * ELS LIRR - Link Incident Record Registration request. + */ +struct fc_els_lirr { + __u8 lirr_cmd; /* command */ + __u8 lirr_resv[3]; /* reserved - must be zero */ + __u8 lirr_func; /* registration function */ + __u8 lirr_fmt; /* FC-4 type of RLIR requested */ + __u8 lirr_resv2[2]; /* reserved - must be zero */ +}; + +enum fc_els_lirr_func { + ELS_LIRR_SET_COND = 0x01, /* set - conditionally receive */ + ELS_LIRR_SET_UNCOND = 0x02, /* set - unconditionally receive */ + ELS_LIRR_CLEAR = 0xff /* clear registration */ +}; + +/* + * ELS SRL - Scan Remote Loop request. + */ +struct fc_els_srl { + __u8 srl_cmd; /* command */ + __u8 srl_resv[3]; /* reserved - must be zero */ + __u8 srl_flag; /* flag - see below */ + __u8 srl_flag_param[3]; /* flag parameter */ +}; + +enum fc_els_srl_flag { + FC_ELS_SRL_ALL = 0x00, /* scan all FL ports */ + FC_ELS_SRL_ONE = 0x01, /* scan specified loop */ + FC_ELS_SRL_EN_PER = 0x02, /* enable periodic scanning (param) */ + FC_ELS_SRL_DIS_PER = 0x03, /* disable periodic scanning */ +}; + +/* + * ELS RLS - Read Link Error Status Block request. + */ +struct fc_els_rls { + __u8 rls_cmd; /* command */ + __u8 rls_resv[4]; /* reserved - must be zero */ + __u8 rls_port_id[3]; /* port ID */ +}; + +/* + * ELS RLS LS_ACC Response. + */ +struct fc_els_rls_resp { + __u8 rls_cmd; /* ELS_LS_ACC */ + __u8 rls_resv[3]; /* reserved - must be zero */ + struct fc_els_lesb rls_lesb; /* link error status block */ +}; + +/* + * ELS RLIR - Registered Link Incident Report. + * This is followed by the CLIR and the CLID, described below. + */ +struct fc_els_rlir { + __u8 rlir_cmd; /* command */ + __u8 rlir_resv[3]; /* reserved - must be zero */ + __u8 rlir_fmt; /* format (FC4-type if type specific) */ + __u8 rlir_clr_len; /* common link incident record length */ + __u8 rlir_cld_len; /* common link incident desc. length */ + __u8 rlir_slr_len; /* spec. link incident record length */ +}; + +/* + * CLIR - Common Link Incident Record Data. - Sent via RLIR. + */ +struct fc_els_clir { + __be64 clir_wwpn; /* incident port name */ + __be64 clir_wwnn; /* incident port node name */ + __u8 clir_port_type; /* incident port type */ + __u8 clir_port_id[3]; /* incident port ID */ + + __be64 clir_conn_wwpn; /* connected port name */ + __be64 clir_conn_wwnn; /* connected node name */ + __be64 clir_fab_name; /* fabric name */ + __be32 clir_phys_port; /* physical port number */ + __be32 clir_trans_id; /* transaction ID */ + __u8 clir_resv[3]; /* reserved */ + __u8 clir_ts_fmt; /* time stamp format */ + __be64 clir_timestamp; /* time stamp */ +}; + +/* + * CLIR clir_ts_fmt - time stamp format values. + */ +enum fc_els_clir_ts_fmt { + ELS_CLIR_TS_UNKNOWN = 0, /* time stamp field unknown */ + ELS_CLIR_TS_SEC_FRAC = 1, /* time in seconds and fractions */ + ELS_CLIR_TS_CSU = 2, /* time in clock synch update format */ +}; + +/* + * Common Link Incident Descriptor - sent via RLIR. + */ +struct fc_els_clid { + __u8 clid_iq; /* incident qualifier flags */ + __u8 clid_ic; /* incident code */ + __be16 clid_epai; /* domain/area of ISL */ +}; + +/* + * CLID incident qualifier flags. + */ +enum fc_els_clid_iq { + ELS_CLID_SWITCH = 0x20, /* incident port is a switch node */ + ELS_CLID_E_PORT = 0x10, /* incident is an ISL (E) port */ + ELS_CLID_SEV_MASK = 0x0c, /* severity 2-bit field mask */ + ELS_CLID_SEV_INFO = 0x00, /* report is informational */ + ELS_CLID_SEV_INOP = 0x08, /* link not operational */ + ELS_CLID_SEV_DEG = 0x04, /* link degraded but operational */ + ELS_CLID_LASER = 0x02, /* subassembly is a laser */ + ELS_CLID_FRU = 0x01, /* format can identify a FRU */ +}; + +/* + * CLID incident code. + */ +enum fc_els_clid_ic { + ELS_CLID_IC_IMPL = 1, /* implicit incident */ + ELS_CLID_IC_BER = 2, /* bit-error-rate threshold exceeded */ + ELS_CLID_IC_LOS = 3, /* loss of synch or signal */ + ELS_CLID_IC_NOS = 4, /* non-operational primitive sequence */ + ELS_CLID_IC_PST = 5, /* primitive sequence timeout */ + ELS_CLID_IC_INVAL = 6, /* invalid primitive sequence */ + ELS_CLID_IC_LOOP_TO = 7, /* loop initialization time out */ + ELS_CLID_IC_LIP = 8, /* receiving LIP */ +}; + +#endif /* _FC_ELS_H_ */ diff --git a/include/scsi/fc/fc_encaps.h b/include/scsi/fc/fc_encaps.h new file mode 100644 index 0000000..f180c3e --- /dev/null +++ b/include/scsi/fc/fc_encaps.h @@ -0,0 +1,138 @@ +/* + * Copyright(c) 2007 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ +#ifndef _FC_ENCAPS_H_ +#define _FC_ENCAPS_H_ + +/* + * Protocol definitions from RFC 3643 - Fibre Channel Frame Encapsulation. + * + * Note: The frame length field is the number of 32-bit words in + * the encapsulation including the fcip_encaps_header, CRC and EOF words. + * The minimum frame length value in bytes is (32 + 24 + 4 + 4) * 4 = 64. + * The maximum frame length value in bytes is (32 + 24 + 2112 + 4 + 4) = 2172. + */ +#define FC_ENCAPS_MIN_FRAME_LEN 64 /* min frame len (bytes) (see above) */ +#define FC_ENCAPS_MAX_FRAME_LEN (FC_ENCAPS_MIN_FRAME_LEN + FC_MAX_PAYLOAD) + +#define FC_ENCAPS_VER 1 /* current version number */ + +struct fc_encaps_hdr { + __u8 fc_proto; /* protocol number */ + __u8 fc_ver; /* version of encapsulation */ + __u8 fc_proto_n; /* ones complement of protocol */ + __u8 fc_ver_n; /* ones complement of version */ + + unsigned char fc_proto_data[8]; /* protocol specific data */ + + __be16 fc_len_flags; /* 10-bit length/4 w/ 6 flag bits */ + __be16 fc_len_flags_n; /* ones complement of length / flags */ + + /* + * Offset 0x10 + */ + __be32 fc_time[2]; /* time stamp: seconds and fraction */ + __be32 fc_crc; /* CRC */ + __be32 fc_sof; /* start of frame (see FC_SOF below) */ + + /* 0x20 - FC frame content followed by EOF word */ +}; + +#define FCIP_ENCAPS_HDR_LEN 0x20 /* expected length for asserts */ + +/* + * Macro's for making redundant copies of EOF and SOF. + */ +#define FC_XY(x, y) ((((x) & 0xff) << 8) | ((y) & 0xff)) +#define FC_XYXY(x, y) ((FCIP_XY(x, y) << 16) | FCIP_XY(x, y)) +#define FC_XYNN(x, y) (FCIP_XYXY(x, y) ^ 0xffff) + +#define FC_SOF_ENCODE(n) FC_XYNN(n, n) +#define FC_EOF_ENCODE(n) FC_XYNN(n, n) + +/* + * SOF / EOF bytes. + */ +enum fc_sof { + FC_SOF_F = 0x28, /* fabric */ + FC_SOF_I4 = 0x29, /* initiate class 4 */ + FC_SOF_I2 = 0x2d, /* initiate class 2 */ + FC_SOF_I3 = 0x2e, /* initiate class 3 */ + FC_SOF_N4 = 0x31, /* normal class 4 */ + FC_SOF_N2 = 0x35, /* normal class 2 */ + FC_SOF_N3 = 0x36, /* normal class 3 */ + FC_SOF_C4 = 0x39, /* activate class 4 */ +} __attribute__((packed)); + +enum fc_eof { + FC_EOF_N = 0x41, /* normal (not last frame of seq) */ + FC_EOF_T = 0x42, /* terminate (last frame of sequence) */ + FC_EOF_RT = 0x44, + FC_EOF_DT = 0x46, /* disconnect-terminate class-1 */ + FC_EOF_NI = 0x49, /* normal-invalid */ + FC_EOF_DTI = 0x4e, /* disconnect-terminate-invalid */ + FC_EOF_RTI = 0x4f, + FC_EOF_A = 0x50, /* abort */ +} __attribute__((packed)); + +#define FC_SOF_CLASS_MASK 0x06 /* mask for class of service in SOF */ + +/* + * Define classes in terms of the SOF code (initial). + */ +enum fc_class { + FC_CLASS_NONE = 0, /* software value indicating no class */ + FC_CLASS_2 = FC_SOF_I2, + FC_CLASS_3 = FC_SOF_I3, + FC_CLASS_4 = FC_SOF_I4, + FC_CLASS_F = FC_SOF_F, +}; + +/* + * Determine whether SOF code indicates the need for a BLS ACK. + */ +static inline int fc_sof_needs_ack(enum fc_sof sof) +{ + return (~sof) & 0x02; /* true for class 1, 2, 4, 6, or F */ +} + +/* + * Given an fc_class, return the normal (non-initial) SOF value. + */ +static inline enum fc_sof fc_sof_normal(enum fc_class class) +{ + return class + FC_SOF_N3 - FC_SOF_I3; /* diff is always 8 */ +} + +/* + * Compute class from SOF value. + */ +static inline enum fc_class fc_sof_class(enum fc_sof sof) +{ + return (sof & 0x7) | FC_SOF_F; +} + +/* + * Determine whether SOF is for the initial frame of a sequence. + */ +static inline int fc_sof_is_init(enum fc_sof sof) +{ + return sof < 0x30; +} + +#endif /* _FC_ENCAPS_H_ */ diff --git a/include/scsi/fc/fc_fc2.h b/include/scsi/fc/fc_fc2.h new file mode 100644 index 0000000..f87777d --- /dev/null +++ b/include/scsi/fc/fc_fc2.h @@ -0,0 +1,123 @@ +/* + * Copyright(c) 2007 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ + +#ifndef _FC_FC2_H_ +#define _FC_FC2_H_ + +/* + * Fibre Channel Exchanges and Sequences. + */ +#ifndef PACKED +#define PACKED __attribute__ ((__packed__)) +#endif /* PACKED */ + + +/* + * Sequence Status Block. + * This format is set by the FC-FS standard and is sent over the wire. + * Note that the fields aren't all naturally aligned. + */ +struct fc_ssb { + __u8 ssb_seq_id; /* sequence ID */ + __u8 _ssb_resvd; + __be16 ssb_low_seq_cnt; /* lowest SEQ_CNT */ + + __be16 ssb_high_seq_cnt; /* highest SEQ_CNT */ + __be16 ssb_s_stat; /* sequence status flags */ + + __be16 ssb_err_seq_cnt; /* error SEQ_CNT */ + __u8 ssb_fh_cs_ctl; /* frame header CS_CTL */ + __be16 ssb_fh_ox_id; /* frame header OX_ID */ + __be16 ssb_rx_id; /* responder's exchange ID */ + __u8 _ssb_resvd2[2]; +} PACKED; + +/* + * The SSB should be 17 bytes. Since it's layout is somewhat strange, + * we define the size here so that code can ASSERT that the size comes out + * correct. + */ +#define FC_SSB_SIZE 17 /* length of fc_ssb for assert */ + +/* + * ssb_s_stat - flags from FC-FS-2 T11/1619-D Rev 0.90. + */ +#define SSB_ST_RESP (1 << 15) /* sequence responder */ +#define SSB_ST_ACTIVE (1 << 14) /* sequence is active */ +#define SSB_ST_ABNORMAL (1 << 12) /* abnormal ending condition */ + +#define SSB_ST_REQ_MASK (3 << 10) /* ACK, abort sequence condition */ +#define SSB_ST_REQ_CONT (0 << 10) +#define SSB_ST_REQ_ABORT (1 << 10) +#define SSB_ST_REQ_STOP (2 << 10) +#define SSB_ST_REQ_RETRANS (3 << 10) + +#define SSB_ST_ABTS (1 << 9) /* ABTS protocol completed */ +#define SSB_ST_RETRANS (1 << 8) /* retransmission completed */ +#define SSB_ST_TIMEOUT (1 << 7) /* sequence timed out by recipient */ +#define SSB_ST_P_RJT (1 << 6) /* P_RJT transmitted */ + +#define SSB_ST_CLASS_BIT 4 /* class of service field LSB */ +#define SSB_ST_CLASS_MASK 3 /* class of service mask */ +#define SSB_ST_ACK (1 << 3) /* ACK (EOFt or EOFdt) transmitted */ + +/* + * Exchange Status Block. + * This format is set by the FC-FS standard and is sent over the wire. + * Note that the fields aren't all naturally aligned. + */ +struct fc_esb { + __u8 esb_cs_ctl; /* CS_CTL for frame header */ + __be16 esb_ox_id; /* originator exchange ID */ + __be16 esb_rx_id; /* responder exchange ID */ + __be32 esb_orig_fid; /* fabric ID of originator */ + __be32 esb_resp_fid; /* fabric ID of responder */ + __be32 esb_e_stat; /* status */ + __u8 _esb_resvd[4]; + __u8 esb_service_params[112]; /* TBD */ + __u8 esb_seq_status[8]; /* sequence statuses, 8 bytes each */ +} __attribute__((packed)); + +/* + * Define expected size for ASSERTs. + * See comments on FC_SSB_SIZE. + */ +#define FC_ESB_SIZE (1 + 5*4 + 112 + 8) /* expected size */ + +/* + * esb_e_stat - flags from FC-FS-2 T11/1619-D Rev 0.90. + */ +#define ESB_ST_RESP (1 << 31) /* responder to exchange */ +#define ESB_ST_SEQ_INIT (1 << 30) /* port holds sequence initiaive */ +#define ESB_ST_COMPLETE (1 << 29) /* exchange is complete */ +#define ESB_ST_ABNORMAL (1 << 28) /* abnormal ending condition */ +#define ESB_ST_REC_QUAL (1 << 26) /* recovery qualifier active */ + +#define ESB_ST_ERRP_BIT 24 /* LSB for error policy */ +#define ESB_ST_ERRP_MASK (3 << 24) /* mask for error policy */ +#define ESB_ST_ERRP_MULT (0 << 24) /* abort, discard multiple sequences */ +#define ESB_ST_ERRP_SING (1 << 24) /* abort, discard single sequence */ +#define ESB_ST_ERRP_INF (2 << 24) /* process with infinite buffers */ +#define ESB_ST_ERRP_IMM (3 << 24) /* discard mult. with immed. retran. */ + +#define ESB_ST_OX_ID_INVL (1 << 23) /* originator XID invalid */ +#define ESB_ST_RX_ID_INVL (1 << 22) /* responder XID invalid */ +#define ESB_ST_PRI_INUSE (1 << 21) /* priority / preemption in use */ + +#endif /* _FC_FC2_H_ */ diff --git a/include/scsi/fc/fc_fcoe.h b/include/scsi/fc/fc_fcoe.h new file mode 100644 index 0000000..ccb3dbe --- /dev/null +++ b/include/scsi/fc/fc_fcoe.h @@ -0,0 +1,103 @@ +/* + * Copyright(c) 2007 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ + +#ifndef _FC_FCOE_H_ +#define _FC_FCOE_H_ + +/* + * FCoE - Fibre Channel over Ethernet. + */ + +/* + * FC_FCOE_OUI hasn't been standardized yet. XXX TBD. + */ +#ifndef FC_FCOE_OUI +#define FC_FCOE_OUI 0x0efc00 /* upper 24 bits of FCOE dest MAC TBD */ +#endif + +/* + * The destination MAC address for the fabric login may get a different OUI. + * This isn't standardized yet. + */ +#ifndef FC_FCOE_FLOGI_MAC +/* gateway MAC - TBD */ +#define FC_FCOE_FLOGI_MAC { 0x0e, 0xfc, 0x00, 0xff, 0xff, 0xfe } +#endif + +#define FC_FCOE_VER 0 /* version */ + +/* + * Ethernet Addresses based on FC S_ID and D_ID. + * Generated by FC_FCOE_OUI | S_ID/D_ID + */ +#define FC_FCOE_ENCAPS_ID(n) (((u64) FC_FCOE_OUI << 24) | (n)) +#define FC_FCOE_DECAPS_ID(n) ((n) >> 24) + +/* + * FCoE frame header - 14 bytes + * + * This is the August 2007 version of the FCoE header as defined by T11. + * This follows the VLAN header, which includes the ethertype. + */ +struct fcoe_hdr { + __u8 fcoe_ver; /* version field - upper 4 bits */ + __u8 fcoe_resvd[12]; /* reserved - send zero and ignore */ + __u8 fcoe_sof; /* start of frame per RFC 3643 */ +}; + +#define FC_FCOE_DECAPS_VER(hp) ((hp)->fcoe_ver >> 4) +#define FC_FCOE_ENCAPS_VER(hp, ver) ((hp)->fcoe_ver = (ver) << 4) + +/* + * FCoE CRC & EOF - 8 bytes. + */ +struct fcoe_crc_eof { + __le32 fcoe_crc32; /* CRC for FC packet */ + __u8 fcoe_eof; /* EOF from RFC 3643 */ + __u8 fcoe_resvd[3]; /* reserved - send zero and ignore */ +} __attribute__((packed)); + +/* + * Minimum FCoE + FC header length + * 14 bytes FCoE header + 24 byte FC header = 38 bytes + */ +#define FCOE_HEADER_LEN 38 + +/* + * Minimum FCoE frame size + * 14 bytes FCoE header + 24 byte FC header + 8 byte FCoE trailer = 46 bytes + */ +#define FCOE_MIN_FRAME 46 + +/* + * fc_fcoe_set_mac - Store OUI + DID into MAC address field. + * @mac: mac address to be set + * @did: fc dest id to use + */ +static inline void fc_fcoe_set_mac(u8 *mac, u8 *did) +{ + mac[0] = (u8) (FC_FCOE_OUI >> 16); + mac[1] = (u8) (FC_FCOE_OUI >> 8); + mac[2] = (u8) FC_FCOE_OUI; + mac[3] = did[0]; + mac[4] = did[1]; + mac[5] = did[2]; +} + +#endif /* _FC_FCOE_H_ */ diff --git a/include/scsi/fc/fc_fcp.h b/include/scsi/fc/fc_fcp.h new file mode 100644 index 0000000..29ecb0b --- /dev/null +++ b/include/scsi/fc/fc_fcp.h @@ -0,0 +1,205 @@ +/* + * Copyright(c) 2007 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ + +#ifndef _FC_FCP_H_ +#define _FC_FCP_H_ + +/* + * Fibre Channel Protocol for SCSI. + * From T10 FCP-3, T10 project 1560-D Rev 4, Sept. 13, 2005. + */ + +/* + * fc/fs.h defines FC_TYPE_FCP. + */ + +/* + * Service parameter page parameters (word 3 bits) for Process Login. + */ +#define FCP_SPPF_TASK_RETRY_ID 0x0200 /* task retry ID requested */ +#define FCP_SPPF_RETRY 0x0100 /* retry supported */ +#define FCP_SPPF_CONF_COMPL 0x0080 /* confirmed completion allowed */ +#define FCP_SPPF_OVLY_ALLOW 0x0040 /* data overlay allowed */ +#define FCP_SPPF_INIT_FCN 0x0020 /* initiator function */ +#define FCP_SPPF_TARG_FCN 0x0010 /* target function */ +#define FCP_SPPF_RD_XRDY_DIS 0x0002 /* disable XFER_RDY for reads */ +#define FCP_SPPF_WR_XRDY_DIS 0x0001 /* disable XFER_RDY for writes */ + +/* + * FCP_CMND IU Payload. + */ +struct fcp_cmnd { + __u8 fc_lun[8]; /* logical unit number */ + __u8 fc_cmdref; /* commmand reference number */ + __u8 fc_pri_ta; /* priority and task attribute */ + __u8 fc_tm_flags; /* task management flags */ + __u8 fc_flags; /* additional len & flags */ + __u8 fc_cdb[16]; /* base CDB */ + __be32 fc_dl; /* data length (must follow fc_cdb) */ +}; + +#define FCP_CMND_LEN 32 /* expected length of structure */ + +struct fcp_cmnd32 { + __u8 fc_lun[8]; /* logical unit number */ + __u8 fc_cmdref; /* commmand reference number */ + __u8 fc_pri_ta; /* priority and task attribute */ + __u8 fc_tm_flags; /* task management flags */ + __u8 fc_flags; /* additional len & flags */ + __u8 fc_cdb[32]; /* base CDB */ + __be32 fc_dl; /* data length (must follow fc_cdb) */ +}; + +#define FCP_CMND32_LEN 48 /* expected length of structure */ +#define FCP_CMND32_ADD_LEN (16 / 4) /* Additional cdb length */ + +/* + * fc_pri_ta. + */ +#define FCP_PTA_SIMPLE 0 /* simple task attribute */ +#define FCP_PTA_HEADQ 1 /* head of queue task attribute */ +#define FCP_PTA_ORDERED 2 /* ordered task attribute */ +#define FCP_PTA_ACA 4 /* auto. contigent allegiance */ +#define FCP_PRI_SHIFT 3 /* priority field starts in bit 3 */ +#define FCP_PRI_RESVD_MASK 0x80 /* reserved bits in priority field */ + +/* + * fc_tm_flags - task management flags field. + */ +#define FCP_TMF_CLR_ACA 0x40 /* clear ACA condition */ +#define FCP_TMF_LUN_RESET 0x10 /* logical unit reset task management */ +#define FCP_TMF_CLR_TASK_SET 0x04 /* clear task set */ +#define FCP_TMF_ABT_TASK_SET 0x02 /* abort task set */ + +/* + * fc_flags. + * Bits 7:2 are the additional FCP_CDB length / 4. + */ +#define FCP_CFL_LEN_MASK 0xfc /* mask for additional length */ +#define FCP_CFL_LEN_SHIFT 2 /* shift bits for additional length */ +#define FCP_CFL_RDDATA 0x02 /* read data */ +#define FCP_CFL_WRDATA 0x01 /* write data */ + +/* + * FCP_TXRDY IU - transfer ready payload. + */ +struct fcp_txrdy { + __be32 ft_data_ro; /* data relative offset */ + __be32 ft_burst_len; /* burst length */ + __u8 _ft_resvd[4]; /* reserved */ +}; + +#define FCP_TXRDY_LEN 12 /* expected length of structure */ + +/* + * FCP_RESP IU - response payload. + * + * The response payload comes in three parts: the flags/status, the + * sense/response lengths and the sense data/response info section. + * + * From FCP3r04, note 6 of section 9.5.13: + * + * Some early implementations presented the FCP_RSP IU without the FCP_RESID, + * FCP_SNS_LEN, and FCP_RSP_LEN fields if the FCP_RESID_UNDER, FCP_RESID_OVER, + * FCP_SNS_LEN_VALID, and FCP_RSP_LEN_VALID bits were all set to zero. This + * non-standard behavior should be tolerated. + * + * All response frames will always contain the fcp_resp template. Some + * will also include the fcp_resp_len template. + */ +struct fcp_resp { + __u8 _fr_resvd[8]; /* reserved */ + __be16 fr_retry_delay; /* retry delay timer */ + __u8 fr_flags; /* flags */ + __u8 fr_status; /* SCSI status code */ +}; + +#define FCP_RESP_LEN 12 /* expected length of structure */ + +struct fcp_resp_ext { + __be32 fr_resid; /* Residual value */ + __be32 fr_sns_len; /* SCSI Sense length */ + __be32 fr_rsp_len; /* Response Info length */ + + /* + * Optionally followed by RSP info and/or SNS info and/or + * bidirectional read residual length, if any. + */ +}; + +#define FCP_RESP_EXT_LEN 12 /* expected length of the structure */ + +struct fcp_resp_rsp_info { + __u8 _fr_resvd[3]; /* reserved */ + __u8 rsp_code; /* Response Info Code */ + __u8 _fr_resvd2[4]; /* reserved */ +}; + +struct fcp_resp_with_ext { + struct fcp_resp resp; + struct fcp_resp_ext ext; +}; + +#define FCP_RESP_WITH_EXT (FCP_RESP_LEN + FCP_RESP_EXT_LEN) + +/* + * fr_flags. + */ +#define FCP_BIDI_RSP 0x80 /* bidirectional read response */ +#define FCP_BIDI_READ_UNDER 0x40 /* bidir. read less than requested */ +#define FCP_BIDI_READ_OVER 0x20 /* DL insufficient for full transfer */ +#define FCP_CONF_REQ 0x10 /* confirmation requested */ +#define FCP_RESID_UNDER 0x08 /* transfer shorter than expected */ +#define FCP_RESID_OVER 0x04 /* DL insufficient for full transfer */ +#define FCP_SNS_LEN_VAL 0x02 /* SNS_LEN field is valid */ +#define FCP_RSP_LEN_VAL 0x01 /* RSP_LEN field is valid */ + +/* + * rsp_codes + */ +enum fcp_resp_rsp_codes { + FCP_TMF_CMPL = 0, + FCP_DATA_LEN_INVALID = 1, + FCP_CMND_FIELDS_INVALID = 2, + FCP_DATA_PARAM_MISMATCH = 3, + FCP_TMF_REJECTED = 4, + FCP_TMF_FAILED = 5, + FCP_TMF_INVALID_LUN = 9, +}; + +/* + * FCP SRR Link Service request - Sequence Retransmission Request. + */ +struct fcp_srr { + __u8 srr_op; /* opcode ELS_SRR */ + __u8 srr_resvd[3]; /* opcode / reserved - must be zero */ + __be16 srr_ox_id; /* OX_ID of failed command */ + __be16 srr_rx_id; /* RX_ID of failed command */ + __be32 srr_rel_off; /* relative offset */ + __u8 srr_r_ctl; /* r_ctl for the information unit */ + __u8 srr_resvd2[3]; /* reserved */ +}; + +/* + * Feature bits in name server FC-4 Features object. + */ +#define FCP_FEAT_TARG (1 << 0) /* target function supported */ +#define FCP_FEAT_INIT (1 << 1) /* initiator function supported */ + +#endif /* _FC_FCP_H_ */ diff --git a/include/scsi/fc/fc_fip.h b/include/scsi/fc/fc_fip.h new file mode 100644 index 0000000..3d138c1 --- /dev/null +++ b/include/scsi/fc/fc_fip.h @@ -0,0 +1,230 @@ +/* + * Copyright 2008 Cisco Systems, Inc. All rights reserved. + * + * This program is free software; you may redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#ifndef _FC_FIP_H_ +#define _FC_FIP_H_ + +/* + * This version is based on: + * http://www.t11.org/ftp/t11/pub/fc/bb-5/08-543v1.pdf + */ + +#define FIP_DEF_PRI 128 /* default selection priority */ +#define FIP_DEF_FC_MAP 0x0efc00 /* default FCoE MAP (MAC OUI) value */ +#define FIP_DEF_FKA 8000 /* default FCF keep-alive/advert period (mS) */ +#define FIP_VN_KA_PERIOD 90000 /* required VN_port keep-alive period (mS) */ +#define FIP_FCF_FUZZ 100 /* random time added by FCF (mS) */ + +/* + * Multicast MAC addresses. T11-adopted. + */ +#define FIP_ALL_FCOE_MACS ((u8[6]) { 1, 0x10, 0x18, 1, 0, 0 }) +#define FIP_ALL_ENODE_MACS ((u8[6]) { 1, 0x10, 0x18, 1, 0, 1 }) +#define FIP_ALL_FCF_MACS ((u8[6]) { 1, 0x10, 0x18, 1, 0, 2 }) + +#define FIP_VER 1 /* version for fip_header */ + +struct fip_header { + __u8 fip_ver; /* upper 4 bits are the version */ + __u8 fip_resv1; /* reserved */ + __be16 fip_op; /* operation code */ + __u8 fip_resv2; /* reserved */ + __u8 fip_subcode; /* lower 4 bits are sub-code */ + __be16 fip_dl_len; /* length of descriptors in words */ + __be16 fip_flags; /* header flags */ +} __attribute__((packed)); + +#define FIP_VER_SHIFT 4 +#define FIP_VER_ENCAPS(v) ((v) << FIP_VER_SHIFT) +#define FIP_VER_DECAPS(v) ((v) >> FIP_VER_SHIFT) +#define FIP_BPW 4 /* bytes per word for lengths */ + +/* + * fip_op. + */ +enum fip_opcode { + FIP_OP_DISC = 1, /* discovery, advertisement, etc. */ + FIP_OP_LS = 2, /* Link Service request or reply */ + FIP_OP_CTRL = 3, /* Keep Alive / Link Reset */ + FIP_OP_VLAN = 4, /* VLAN discovery */ + FIP_OP_VENDOR_MIN = 0xfff8, /* min vendor-specific opcode */ + FIP_OP_VENDOR_MAX = 0xfffe, /* max vendor-specific opcode */ +}; + +/* + * Subcodes for FIP_OP_DISC. + */ +enum fip_disc_subcode { + FIP_SC_SOL = 1, /* solicitation */ + FIP_SC_ADV = 2, /* advertisement */ +}; + +/* + * Subcodes for FIP_OP_LS. + */ +enum fip_trans_subcode { + FIP_SC_REQ = 1, /* request */ + FIP_SC_REP = 2, /* reply */ +}; + +/* + * Subcodes for FIP_OP_RESET. + */ +enum fip_reset_subcode { + FIP_SC_KEEP_ALIVE = 1, /* keep-alive from VN_Port */ + FIP_SC_CLR_VLINK = 2, /* clear virtual link from VF_Port */ +}; + +/* + * Subcodes for FIP_OP_VLAN. + */ +enum fip_vlan_subcode { + FIP_SC_VL_REQ = 1, /* request */ + FIP_SC_VL_REP = 2, /* reply */ +}; + +/* + * flags in header fip_flags. + */ +enum fip_flag { + FIP_FL_FPMA = 0x8000, /* supports FPMA fabric-provided MACs */ + FIP_FL_SPMA = 0x4000, /* supports SPMA server-provided MACs */ + FIP_FL_AVAIL = 0x0004, /* available for FLOGI/ELP */ + FIP_FL_SOL = 0x0002, /* this is a solicited message */ + FIP_FL_FPORT = 0x0001, /* sent from an F port */ +}; + +/* + * Common descriptor header format. + */ +struct fip_desc { + __u8 fip_dtype; /* type - see below */ + __u8 fip_dlen; /* length - in 32-bit words */ +}; + +enum fip_desc_type { + FIP_DT_PRI = 1, /* priority for forwarder selection */ + FIP_DT_MAC = 2, /* MAC address */ + FIP_DT_MAP_OUI = 3, /* FC-MAP OUI */ + FIP_DT_NAME = 4, /* switch name or node name */ + FIP_DT_FAB = 5, /* fabric descriptor */ + FIP_DT_FCOE_SIZE = 6, /* max FCoE frame size */ + FIP_DT_FLOGI = 7, /* FLOGI request or response */ + FIP_DT_FDISC = 8, /* FDISC request or response */ + FIP_DT_LOGO = 9, /* LOGO request or response */ + FIP_DT_ELP = 10, /* ELP request or response */ + FIP_DT_VN_ID = 11, /* VN_Node Identifier */ + FIP_DT_FKA = 12, /* advertisement keep-alive period */ + FIP_DT_VENDOR = 13, /* vendor ID */ + FIP_DT_VLAN = 14, /* vlan number */ + FIP_DT_LIMIT, /* max defined desc_type + 1 */ + FIP_DT_VENDOR_BASE = 128, /* first vendor-specific desc_type */ +}; + +/* + * FIP_DT_PRI - priority descriptor. + */ +struct fip_pri_desc { + struct fip_desc fd_desc; + __u8 fd_resvd; + __u8 fd_pri; /* FCF priority: higher is better */ +} __attribute__((packed)); + +/* + * FIP_DT_MAC - MAC address descriptor. + */ +struct fip_mac_desc { + struct fip_desc fd_desc; + __u8 fd_mac[ETH_ALEN]; +} __attribute__((packed)); + +/* + * FIP_DT_MAP - descriptor. + */ +struct fip_map_desc { + struct fip_desc fd_desc; + __u8 fd_resvd[3]; + __u8 fd_map[3]; +} __attribute__((packed)); + +/* + * FIP_DT_NAME descriptor. + */ +struct fip_wwn_desc { + struct fip_desc fd_desc; + __u8 fd_resvd[2]; + __be64 fd_wwn; /* 64-bit WWN, unaligned */ +} __attribute__((packed)); + +/* + * FIP_DT_FAB descriptor. + */ +struct fip_fab_desc { + struct fip_desc fd_desc; + __be16 fd_vfid; /* virtual fabric ID */ + __u8 fd_resvd; + __u8 fd_map[3]; /* FC-MAP value */ + __be64 fd_wwn; /* fabric name, unaligned */ +} __attribute__((packed)); + +/* + * FIP_DT_FCOE_SIZE descriptor. + */ +struct fip_size_desc { + struct fip_desc fd_desc; + __be16 fd_size; +} __attribute__((packed)); + +/* + * Descriptor that encapsulates an ELS or ILS frame. + * The encapsulated frame immediately follows this header, without + * SOF, EOF, or CRC. + */ +struct fip_encaps { + struct fip_desc fd_desc; + __u8 fd_resvd[2]; +} __attribute__((packed)); + +/* + * FIP_DT_VN_ID - VN_Node Identifier descriptor. + */ +struct fip_vn_desc { + struct fip_desc fd_desc; + __u8 fd_mac[ETH_ALEN]; + __u8 fd_resvd; + __u8 fd_fc_id[3]; + __be64 fd_wwpn; /* port name, unaligned */ +} __attribute__((packed)); + +/* + * FIP_DT_FKA - Advertisement keep-alive period. + */ +struct fip_fka_desc { + struct fip_desc fd_desc; + __u8 fd_resvd[2]; + __be32 fd_fka_period; /* adv./keep-alive period in mS */ +} __attribute__((packed)); + +/* + * FIP_DT_VENDOR descriptor. + */ +struct fip_vendor_desc { + struct fip_desc fd_desc; + __u8 fd_resvd[2]; + __u8 fd_vendor_id[8]; +} __attribute__((packed)); + +#endif /* _FC_FIP_H_ */ diff --git a/include/scsi/fc/fc_fs.h b/include/scsi/fc/fc_fs.h new file mode 100644 index 0000000..50f28b1 --- /dev/null +++ b/include/scsi/fc/fc_fs.h @@ -0,0 +1,348 @@ +/* + * Copyright(c) 2007 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ + +#ifndef _FC_FS_H_ +#define _FC_FS_H_ + +#include <linux/types.h> + +/* + * Fibre Channel Framing and Signalling definitions. + * From T11 FC-FS-2 Rev 0.90 - 9 August 2005. + */ + +/* + * Frame header + */ +struct fc_frame_header { + __u8 fh_r_ctl; /* routing control */ + __u8 fh_d_id[3]; /* Destination ID */ + + __u8 fh_cs_ctl; /* class of service control / pri */ + __u8 fh_s_id[3]; /* Source ID */ + + __u8 fh_type; /* see enum fc_fh_type below */ + __u8 fh_f_ctl[3]; /* frame control */ + + __u8 fh_seq_id; /* sequence ID */ + __u8 fh_df_ctl; /* data field control */ + __be16 fh_seq_cnt; /* sequence count */ + + __be16 fh_ox_id; /* originator exchange ID */ + __be16 fh_rx_id; /* responder exchange ID */ + __be32 fh_parm_offset; /* parameter or relative offset */ +}; + +#define FC_FRAME_HEADER_LEN 24 /* expected length of structure */ + +#define FC_MAX_PAYLOAD 2112U /* max payload length in bytes */ +#define FC_MIN_MAX_PAYLOAD 256U /* lower limit on max payload */ + +#define FC_MAX_FRAME (FC_MAX_PAYLOAD + FC_FRAME_HEADER_LEN) +#define FC_MIN_MAX_FRAME (FC_MIN_MAX_PAYLOAD + FC_FRAME_HEADER_LEN) + +/* + * fh_r_ctl - Routing control definitions. + */ + /* + * FC-4 device_data. + */ +enum fc_rctl { + FC_RCTL_DD_UNCAT = 0x00, /* uncategorized information */ + FC_RCTL_DD_SOL_DATA = 0x01, /* solicited data */ + FC_RCTL_DD_UNSOL_CTL = 0x02, /* unsolicited control */ + FC_RCTL_DD_SOL_CTL = 0x03, /* solicited control or reply */ + FC_RCTL_DD_UNSOL_DATA = 0x04, /* unsolicited data */ + FC_RCTL_DD_DATA_DESC = 0x05, /* data descriptor */ + FC_RCTL_DD_UNSOL_CMD = 0x06, /* unsolicited command */ + FC_RCTL_DD_CMD_STATUS = 0x07, /* command status */ + +#define FC_RCTL_ILS_REQ FC_RCTL_DD_UNSOL_CTL /* ILS request */ +#define FC_RCTL_ILS_REP FC_RCTL_DD_SOL_CTL /* ILS reply */ + + /* + * Extended Link_Data + */ + FC_RCTL_ELS_REQ = 0x22, /* extended link services request */ + FC_RCTL_ELS_REP = 0x23, /* extended link services reply */ + FC_RCTL_ELS4_REQ = 0x32, /* FC-4 ELS request */ + FC_RCTL_ELS4_REP = 0x33, /* FC-4 ELS reply */ + /* + * Optional Extended Headers + */ + FC_RCTL_VFTH = 0x50, /* virtual fabric tagging header */ + FC_RCTL_IFRH = 0x51, /* inter-fabric routing header */ + FC_RCTL_ENCH = 0x52, /* encapsulation header */ + /* + * Basic Link Services fh_r_ctl values. + */ + FC_RCTL_BA_NOP = 0x80, /* basic link service NOP */ + FC_RCTL_BA_ABTS = 0x81, /* basic link service abort */ + FC_RCTL_BA_RMC = 0x82, /* remove connection */ + FC_RCTL_BA_ACC = 0x84, /* basic accept */ + FC_RCTL_BA_RJT = 0x85, /* basic reject */ + FC_RCTL_BA_PRMT = 0x86, /* dedicated connection preempted */ + /* + * Link Control Information. + */ + FC_RCTL_ACK_1 = 0xc0, /* acknowledge_1 */ + FC_RCTL_ACK_0 = 0xc1, /* acknowledge_0 */ + FC_RCTL_P_RJT = 0xc2, /* port reject */ + FC_RCTL_F_RJT = 0xc3, /* fabric reject */ + FC_RCTL_P_BSY = 0xc4, /* port busy */ + FC_RCTL_F_BSY = 0xc5, /* fabric busy to data frame */ + FC_RCTL_F_BSYL = 0xc6, /* fabric busy to link control frame */ + FC_RCTL_LCR = 0xc7, /* link credit reset */ + FC_RCTL_END = 0xc9, /* end */ +}; + /* incomplete list of definitions */ + +/* + * R_CTL names initializer. + * Please keep this matching the above definitions. + */ +#define FC_RCTL_NAMES_INIT { \ + [FC_RCTL_DD_UNCAT] = "uncat", \ + [FC_RCTL_DD_SOL_DATA] = "sol data", \ + [FC_RCTL_DD_UNSOL_CTL] = "unsol ctl", \ + [FC_RCTL_DD_SOL_CTL] = "sol ctl/reply", \ + [FC_RCTL_DD_UNSOL_DATA] = "unsol data", \ + [FC_RCTL_DD_DATA_DESC] = "data desc", \ + [FC_RCTL_DD_UNSOL_CMD] = "unsol cmd", \ + [FC_RCTL_DD_CMD_STATUS] = "cmd status", \ + [FC_RCTL_ELS_REQ] = "ELS req", \ + [FC_RCTL_ELS_REP] = "ELS rep", \ + [FC_RCTL_ELS4_REQ] = "FC-4 ELS req", \ + [FC_RCTL_ELS4_REP] = "FC-4 ELS rep", \ + [FC_RCTL_BA_NOP] = "BLS NOP", \ + [FC_RCTL_BA_ABTS] = "BLS abort", \ + [FC_RCTL_BA_RMC] = "BLS remove connection", \ + [FC_RCTL_BA_ACC] = "BLS accept", \ + [FC_RCTL_BA_RJT] = "BLS reject", \ + [FC_RCTL_BA_PRMT] = "BLS dedicated connection preempted", \ + [FC_RCTL_ACK_1] = "LC ACK_1", \ + [FC_RCTL_ACK_0] = "LC ACK_0", \ + [FC_RCTL_P_RJT] = "LC port reject", \ + [FC_RCTL_F_RJT] = "LC fabric reject", \ + [FC_RCTL_P_BSY] = "LC port busy", \ + [FC_RCTL_F_BSY] = "LC fabric busy to data frame", \ + [FC_RCTL_F_BSYL] = "LC fabric busy to link control frame",\ + [FC_RCTL_LCR] = "LC link credit reset", \ + [FC_RCTL_END] = "LC end", \ +} + +/* + * Well-known fabric addresses. + */ +enum fc_well_known_fid { + FC_FID_NONE = 0x000000, /* No destination */ + FC_FID_BCAST = 0xffffff, /* broadcast */ + FC_FID_FLOGI = 0xfffffe, /* fabric login */ + FC_FID_FCTRL = 0xfffffd, /* fabric controller */ + FC_FID_DIR_SERV = 0xfffffc, /* directory server */ + FC_FID_TIME_SERV = 0xfffffb, /* time server */ + FC_FID_MGMT_SERV = 0xfffffa, /* management server */ + FC_FID_QOS = 0xfffff9, /* QoS Facilitator */ + FC_FID_ALIASES = 0xfffff8, /* alias server (FC-PH2) */ + FC_FID_SEC_KEY = 0xfffff7, /* Security key dist. server */ + FC_FID_CLOCK = 0xfffff6, /* clock synch server */ + FC_FID_MCAST_SERV = 0xfffff5, /* multicast server */ +}; + +#define FC_FID_WELL_KNOWN_MAX 0xffffff /* highest well-known fabric ID */ +#define FC_FID_WELL_KNOWN_BASE 0xfffff5 /* start of well-known fabric ID */ + +/* + * Other well-known addresses, outside the above contiguous range. + */ +#define FC_FID_DOM_MGR 0xfffc00 /* domain manager base */ + +/* + * Fabric ID bytes. + */ +#define FC_FID_DOMAIN 0 +#define FC_FID_PORT 1 +#define FC_FID_LINK 2 + +/* + * fh_type codes + */ +enum fc_fh_type { + FC_TYPE_BLS = 0x00, /* basic link service */ + FC_TYPE_ELS = 0x01, /* extended link service */ + FC_TYPE_IP = 0x05, /* IP over FC, RFC 4338 */ + FC_TYPE_FCP = 0x08, /* SCSI FCP */ + FC_TYPE_CT = 0x20, /* Fibre Channel Services (FC-CT) */ + FC_TYPE_ILS = 0x22, /* internal link service */ +}; + +/* + * FC_TYPE names initializer. + * Please keep this matching the above definitions. + */ +#define FC_TYPE_NAMES_INIT { \ + [FC_TYPE_BLS] = "BLS", \ + [FC_TYPE_ELS] = "ELS", \ + [FC_TYPE_IP] = "IP", \ + [FC_TYPE_FCP] = "FCP", \ + [FC_TYPE_CT] = "CT", \ + [FC_TYPE_ILS] = "ILS", \ +} + +/* + * Exchange IDs. + */ +#define FC_XID_UNKNOWN 0xffff /* unknown exchange ID */ +#define FC_XID_MIN 0x0 /* supported min exchange ID */ +#define FC_XID_MAX 0xfffe /* supported max exchange ID */ + +/* + * fh_f_ctl - Frame control flags. + */ +#define FC_FC_EX_CTX (1 << 23) /* sent by responder to exchange */ +#define FC_FC_SEQ_CTX (1 << 22) /* sent by responder to sequence */ +#define FC_FC_FIRST_SEQ (1 << 21) /* first sequence of this exchange */ +#define FC_FC_LAST_SEQ (1 << 20) /* last sequence of this exchange */ +#define FC_FC_END_SEQ (1 << 19) /* last frame of sequence */ +#define FC_FC_END_CONN (1 << 18) /* end of class 1 connection pending */ +#define FC_FC_RES_B17 (1 << 17) /* reserved */ +#define FC_FC_SEQ_INIT (1 << 16) /* transfer of sequence initiative */ +#define FC_FC_X_ID_REASS (1 << 15) /* exchange ID has been changed */ +#define FC_FC_X_ID_INVAL (1 << 14) /* exchange ID invalidated */ + +#define FC_FC_ACK_1 (1 << 12) /* 13:12 = 1: ACK_1 expected */ +#define FC_FC_ACK_N (2 << 12) /* 13:12 = 2: ACK_N expected */ +#define FC_FC_ACK_0 (3 << 12) /* 13:12 = 3: ACK_0 expected */ + +#define FC_FC_RES_B11 (1 << 11) /* reserved */ +#define FC_FC_RES_B10 (1 << 10) /* reserved */ +#define FC_FC_RETX_SEQ (1 << 9) /* retransmitted sequence */ +#define FC_FC_UNI_TX (1 << 8) /* unidirectional transmit (class 1) */ +#define FC_FC_CONT_SEQ(i) ((i) << 6) +#define FC_FC_ABT_SEQ(i) ((i) << 4) +#define FC_FC_REL_OFF (1 << 3) /* parameter is relative offset */ +#define FC_FC_RES2 (1 << 2) /* reserved */ +#define FC_FC_FILL(i) ((i) & 3) /* 1:0: bytes of trailing fill */ + +/* + * BA_ACC payload. + */ +struct fc_ba_acc { + __u8 ba_seq_id_val; /* SEQ_ID validity */ +#define FC_BA_SEQ_ID_VAL 0x80 + __u8 ba_seq_id; /* SEQ_ID of seq last deliverable */ + __u8 ba_resvd[2]; /* reserved */ + __be16 ba_ox_id; /* OX_ID for aborted seq or exch */ + __be16 ba_rx_id; /* RX_ID for aborted seq or exch */ + __be16 ba_low_seq_cnt; /* low SEQ_CNT of aborted seq */ + __be16 ba_high_seq_cnt; /* high SEQ_CNT of aborted seq */ +}; + +/* + * BA_RJT: Basic Reject payload. + */ +struct fc_ba_rjt { + __u8 br_resvd; /* reserved */ + __u8 br_reason; /* reason code */ + __u8 br_explan; /* reason explanation */ + __u8 br_vendor; /* vendor unique code */ +}; + +/* + * BA_RJT reason codes. + * From FS-2. + */ +enum fc_ba_rjt_reason { + FC_BA_RJT_NONE = 0, /* in software this means no reject */ + FC_BA_RJT_INVL_CMD = 0x01, /* invalid command code */ + FC_BA_RJT_LOG_ERR = 0x03, /* logical error */ + FC_BA_RJT_LOG_BUSY = 0x05, /* logical busy */ + FC_BA_RJT_PROTO_ERR = 0x07, /* protocol error */ + FC_BA_RJT_UNABLE = 0x09, /* unable to perform request */ + FC_BA_RJT_VENDOR = 0xff, /* vendor-specific (see br_vendor) */ +}; + +/* + * BA_RJT reason code explanations. + */ +enum fc_ba_rjt_explan { + FC_BA_RJT_EXP_NONE = 0x00, /* no additional expanation */ + FC_BA_RJT_INV_XID = 0x03, /* invalid OX_ID-RX_ID combination */ + FC_BA_RJT_ABT = 0x05, /* sequence aborted, no seq info */ +}; + +/* + * P_RJT or F_RJT: Port Reject or Fabric Reject parameter field. + */ +struct fc_pf_rjt { + __u8 rj_action; /* reserved */ + __u8 rj_reason; /* reason code */ + __u8 rj_resvd; /* reserved */ + __u8 rj_vendor; /* vendor unique code */ +}; + +/* + * P_RJT and F_RJT reject reason codes. + */ +enum fc_pf_rjt_reason { + FC_RJT_NONE = 0, /* non-reject (reserved by standard) */ + FC_RJT_INVL_DID = 0x01, /* invalid destination ID */ + FC_RJT_INVL_SID = 0x02, /* invalid source ID */ + FC_RJT_P_UNAV_T = 0x03, /* port unavailable, temporary */ + FC_RJT_P_UNAV = 0x04, /* port unavailable, permanent */ + FC_RJT_CLS_UNSUP = 0x05, /* class not supported */ + FC_RJT_DEL_USAGE = 0x06, /* delimiter usage error */ + FC_RJT_TYPE_UNSUP = 0x07, /* type not supported */ + FC_RJT_LINK_CTL = 0x08, /* invalid link control */ + FC_RJT_R_CTL = 0x09, /* invalid R_CTL field */ + FC_RJT_F_CTL = 0x0a, /* invalid F_CTL field */ + FC_RJT_OX_ID = 0x0b, /* invalid originator exchange ID */ + FC_RJT_RX_ID = 0x0c, /* invalid responder exchange ID */ + FC_RJT_SEQ_ID = 0x0d, /* invalid sequence ID */ + FC_RJT_DF_CTL = 0x0e, /* invalid DF_CTL field */ + FC_RJT_SEQ_CNT = 0x0f, /* invalid SEQ_CNT field */ + FC_RJT_PARAM = 0x10, /* invalid parameter field */ + FC_RJT_EXCH_ERR = 0x11, /* exchange error */ + FC_RJT_PROTO = 0x12, /* protocol error */ + FC_RJT_LEN = 0x13, /* incorrect length */ + FC_RJT_UNEXP_ACK = 0x14, /* unexpected ACK */ + FC_RJT_FAB_CLASS = 0x15, /* class unsupported by fabric entity */ + FC_RJT_LOGI_REQ = 0x16, /* login required */ + FC_RJT_SEQ_XS = 0x17, /* excessive sequences attempted */ + FC_RJT_EXCH_EST = 0x18, /* unable to establish exchange */ + FC_RJT_FAB_UNAV = 0x1a, /* fabric unavailable */ + FC_RJT_VC_ID = 0x1b, /* invalid VC_ID (class 4) */ + FC_RJT_CS_CTL = 0x1c, /* invalid CS_CTL field */ + FC_RJT_INSUF_RES = 0x1d, /* insuff. resources for VC (Class 4) */ + FC_RJT_INVL_CLS = 0x1f, /* invalid class of service */ + FC_RJT_PREEMT_RJT = 0x20, /* preemption request rejected */ + FC_RJT_PREEMT_DIS = 0x21, /* preemption not enabled */ + FC_RJT_MCAST_ERR = 0x22, /* multicast error */ + FC_RJT_MCAST_ET = 0x23, /* multicast error terminate */ + FC_RJT_PRLI_REQ = 0x24, /* process login required */ + FC_RJT_INVL_ATT = 0x25, /* invalid attachment */ + FC_RJT_VENDOR = 0xff, /* vendor specific reject */ +}; + +/* default timeout values */ + +#define FC_DEF_E_D_TOV 2000UL +#define FC_DEF_R_A_TOV 10000UL + +#endif /* _FC_FS_H_ */ diff --git a/include/scsi/fc/fc_gs.h b/include/scsi/fc/fc_gs.h new file mode 100644 index 0000000..a37346d --- /dev/null +++ b/include/scsi/fc/fc_gs.h @@ -0,0 +1,96 @@ +/* + * Copyright(c) 2007 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ + +#ifndef _FC_GS_H_ +#define _FC_GS_H_ + +#include <linux/types.h> + +/* + * Fibre Channel Services - Common Transport. + * From T11.org FC-GS-2 Rev 5.3 November 1998. + */ + +struct fc_ct_hdr { + __u8 ct_rev; /* revision */ + __u8 ct_in_id[3]; /* N_Port ID of original requestor */ + __u8 ct_fs_type; /* type of fibre channel service */ + __u8 ct_fs_subtype; /* subtype */ + __u8 ct_options; + __u8 _ct_resvd1; + __be16 ct_cmd; /* command / response code */ + __be16 ct_mr_size; /* maximum / residual size */ + __u8 _ct_resvd2; + __u8 ct_reason; /* reject reason */ + __u8 ct_explan; /* reason code explanation */ + __u8 ct_vendor; /* vendor unique data */ +}; + +#define FC_CT_HDR_LEN 16 /* expected sizeof (struct fc_ct_hdr) */ + +enum fc_ct_rev { + FC_CT_REV = 1 /* common transport revision */ +}; + +/* + * ct_fs_type values. + */ +enum fc_ct_fs_type { + FC_FST_ALIAS = 0xf8, /* alias service */ + FC_FST_MGMT = 0xfa, /* management service */ + FC_FST_TIME = 0xfb, /* time service */ + FC_FST_DIR = 0xfc, /* directory service */ +}; + +/* + * ct_cmd: Command / response codes + */ +enum fc_ct_cmd { + FC_FS_RJT = 0x8001, /* reject */ + FC_FS_ACC = 0x8002, /* accept */ +}; + +/* + * FS_RJT reason codes. + */ +enum fc_ct_reason { + FC_FS_RJT_CMD = 0x01, /* invalid command code */ + FC_FS_RJT_VER = 0x02, /* invalid version level */ + FC_FS_RJT_LOG = 0x03, /* logical error */ + FC_FS_RJT_IUSIZ = 0x04, /* invalid IU size */ + FC_FS_RJT_BSY = 0x05, /* logical busy */ + FC_FS_RJT_PROTO = 0x07, /* protocol error */ + FC_FS_RJT_UNABL = 0x09, /* unable to perform command request */ + FC_FS_RJT_UNSUP = 0x0b, /* command not supported */ +}; + +/* + * FS_RJT reason code explanations. + */ +enum fc_ct_explan { + FC_FS_EXP_NONE = 0x00, /* no additional explanation */ + FC_FS_EXP_PID = 0x01, /* port ID not registered */ + FC_FS_EXP_PNAM = 0x02, /* port name not registered */ + FC_FS_EXP_NNAM = 0x03, /* node name not registered */ + FC_FS_EXP_COS = 0x04, /* class of service not registered */ + FC_FS_EXP_FTNR = 0x07, /* FC-4 types not registered */ + /* definitions not complete */ +}; + +#endif /* _FC_GS_H_ */ diff --git a/include/scsi/fc/fc_ns.h b/include/scsi/fc/fc_ns.h new file mode 100644 index 0000000..e7d3ac4 --- /dev/null +++ b/include/scsi/fc/fc_ns.h @@ -0,0 +1,192 @@ +/* + * Copyright(c) 2007 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + * + * Maintained at www.Open-FCoE.org + */ + +#ifndef _FC_NS_H_ +#define _FC_NS_H_ + +#include <linux/types.h> + +/* + * Fibre Channel Services - Name Service (dNS) + * From T11.org FC-GS-2 Rev 5.3 November 1998. + */ + +/* + * Common-transport sub-type for Name Server. + */ +#define FC_NS_SUBTYPE 2 /* fs_ct_hdr.ct_fs_subtype */ + +/* + * Name server Requests. + * Note: this is an incomplete list, some unused requests are omitted. + */ +enum fc_ns_req { + FC_NS_GA_NXT = 0x0100, /* get all next */ + FC_NS_GI_A = 0x0101, /* get identifiers - scope */ + FC_NS_GPN_ID = 0x0112, /* get port name by ID */ + FC_NS_GNN_ID = 0x0113, /* get node name by ID */ + FC_NS_GID_PN = 0x0121, /* get ID for port name */ + FC_NS_GID_NN = 0x0131, /* get IDs for node name */ + FC_NS_GID_FT = 0x0171, /* get IDs by FC4 type */ + FC_NS_GPN_FT = 0x0172, /* get port names by FC4 type */ + FC_NS_GID_PT = 0x01a1, /* get IDs by port type */ + FC_NS_RPN_ID = 0x0212, /* reg port name for ID */ + FC_NS_RNN_ID = 0x0213, /* reg node name for ID */ + FC_NS_RFT_ID = 0x0217, /* reg FC4 type for ID */ + FC_NS_RSPN_ID = 0x0218, /* reg symbolic port name */ + FC_NS_RFF_ID = 0x021f, /* reg FC4 Features for ID */ + FC_NS_RSNN_NN = 0x0239, /* reg symbolic node name */ +}; + +/* + * Port type values. + */ +enum fc_ns_pt { + FC_NS_UNID_PORT = 0x00, /* unidentified */ + FC_NS_N_PORT = 0x01, /* N port */ + FC_NS_NL_PORT = 0x02, /* NL port */ + FC_NS_FNL_PORT = 0x03, /* F/NL port */ + FC_NS_NX_PORT = 0x7f, /* Nx port */ + FC_NS_F_PORT = 0x81, /* F port */ + FC_NS_FL_PORT = 0x82, /* FL port */ + FC_NS_E_PORT = 0x84, /* E port */ + FC_NS_B_PORT = 0x85, /* B port */ +}; + +/* + * Port type object. + */ +struct fc_ns_pt_obj { + __u8 pt_type; +}; + +/* + * Port ID object + */ +struct fc_ns_fid { + __u8 fp_flags; /* flags for responses only */ + __u8 fp_fid[3]; +}; + +/* + * fp_flags in port ID object, for responses only. + */ +#define FC_NS_FID_LAST 0x80 /* last object */ + +/* + * FC4-types object. + */ +#define FC_NS_TYPES 256 /* number of possible FC-4 types */ +#define FC_NS_BPW 32 /* bits per word in bitmap */ + +struct fc_ns_fts { + __be32 ff_type_map[FC_NS_TYPES / FC_NS_BPW]; /* bitmap of FC-4 types */ +}; + +/* + * GID_PT request. + */ +struct fc_ns_gid_pt { + __u8 fn_pt_type; + __u8 fn_domain_id_scope; + __u8 fn_area_id_scope; + __u8 fn_resvd; +}; + +/* + * GID_FT or GPN_FT request. + */ +struct fc_ns_gid_ft { + __u8 fn_resvd; + __u8 fn_domain_id_scope; + __u8 fn_area_id_scope; + __u8 fn_fc4_type; +}; + +/* + * GPN_FT response. + */ +struct fc_gpn_ft_resp { + __u8 fp_flags; /* see fp_flags definitions above */ + __u8 fp_fid[3]; /* port ID */ + __be32 fp_resvd; + __be64 fp_wwpn; /* port name */ +}; + +/* + * GID_PN request + */ +struct fc_ns_gid_pn { + __be64 fn_wwpn; /* port name */ +}; + +/* + * GID_PN response + */ +struct fc_gid_pn_resp { + __u8 fp_resvd; + __u8 fp_fid[3]; /* port ID */ +}; + +/* + * RFT_ID request - register FC-4 types for ID. + */ +struct fc_ns_rft_id { + struct fc_ns_fid fr_fid; /* port ID object */ + struct fc_ns_fts fr_fts; /* FC-4 types object */ +}; + +/* + * RPN_ID request - register port name for ID. + * RNN_ID request - register node name for ID. + */ +struct fc_ns_rn_id { + struct fc_ns_fid fr_fid; /* port ID object */ + __be64 fr_wwn; /* node name or port name */ +} __attribute__((__packed__)); + +/* + * RSNN_NN request - register symbolic node name + */ +struct fc_ns_rsnn { + __be64 fr_wwn; /* node name */ + __u8 fr_name_len; + char fr_name[]; +} __attribute__((__packed__)); + +/* + * RSPN_ID request - register symbolic port name + */ +struct fc_ns_rspn { + struct fc_ns_fid fr_fid; /* port ID object */ + __u8 fr_name_len; + char fr_name[]; +} __attribute__((__packed__)); + +/* + * RFF_ID request - register FC-4 Features for ID. + */ +struct fc_ns_rff_id { + struct fc_ns_fid fr_fid; /* port ID object */ + __u8 fr_resvd[2]; + __u8 fr_feat; /* FC-4 Feature bits */ + __u8 fr_type; /* FC-4 type */ +} __attribute__((__packed__)); + +#endif /* _FC_NS_H_ */ diff --git a/include/scsi/scsi_bsg_fc.h b/include/scsi/scsi_bsg_fc.h new file mode 100644 index 0000000..a4b2333 --- /dev/null +++ b/include/scsi/scsi_bsg_fc.h @@ -0,0 +1,322 @@ +/* + * FC Transport BSG Interface + * + * Copyright (C) 2008 James Smart, Emulex Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#ifndef SCSI_BSG_FC_H +#define SCSI_BSG_FC_H + +/* + * This file intended to be included by both kernel and user space + */ + +#include <scsi/scsi.h> + +/* + * FC Transport SGIO v4 BSG Message Support + */ + +/* Default BSG request timeout (in seconds) */ +#define FC_DEFAULT_BSG_TIMEOUT (10 * HZ) + + +/* + * Request Message Codes supported by the FC Transport + */ + +/* define the class masks for the message codes */ +#define FC_BSG_CLS_MASK 0xF0000000 /* find object class */ +#define FC_BSG_HST_MASK 0x80000000 /* fc host class */ +#define FC_BSG_RPT_MASK 0x40000000 /* fc rport class */ + + /* fc_host Message Codes */ +#define FC_BSG_HST_ADD_RPORT (FC_BSG_HST_MASK | 0x00000001) +#define FC_BSG_HST_DEL_RPORT (FC_BSG_HST_MASK | 0x00000002) +#define FC_BSG_HST_ELS_NOLOGIN (FC_BSG_HST_MASK | 0x00000003) +#define FC_BSG_HST_CT (FC_BSG_HST_MASK | 0x00000004) +#define FC_BSG_HST_VENDOR (FC_BSG_HST_MASK | 0x000000FF) + + /* fc_rport Message Codes */ +#define FC_BSG_RPT_ELS (FC_BSG_RPT_MASK | 0x00000001) +#define FC_BSG_RPT_CT (FC_BSG_RPT_MASK | 0x00000002) + + + +/* + * FC Address Identifiers in Message Structures : + * + * Whenever a command payload contains a FC Address Identifier + * (aka port_id), the value is effectively in big-endian + * order, thus the array elements are decoded as follows: + * element [0] is bits 23:16 of the FC Address Identifier + * element [1] is bits 15:8 of the FC Address Identifier + * element [2] is bits 7:0 of the FC Address Identifier + */ + + +/* + * FC Host Messages + */ + +/* FC_BSG_HST_ADDR_PORT : */ + +/* Request: + * This message requests the FC host to login to the remote port + * at the specified N_Port_Id. The remote port is to be enumerated + * with the transport upon completion of the login. + */ +struct fc_bsg_host_add_rport { + uint8_t reserved; + + /* FC Address Identier of the remote port to login to */ + uint8_t port_id[3]; +}; + +/* Response: + * There is no additional response data - fc_bsg_reply->result is sufficient + */ + + +/* FC_BSG_HST_DEL_RPORT : */ + +/* Request: + * This message requests the FC host to remove an enumerated + * remote port and to terminate the login to it. + * + * Note: The driver is free to reject this request if it desires to + * remain logged in with the remote port. + */ +struct fc_bsg_host_del_rport { + uint8_t reserved; + + /* FC Address Identier of the remote port to logout of */ + uint8_t port_id[3]; +}; + +/* Response: + * There is no additional response data - fc_bsg_reply->result is sufficient + */ + + +/* FC_BSG_HST_ELS_NOLOGIN : */ + +/* Request: + * This message requests the FC_Host to send an ELS to a specific + * N_Port_ID. The host does not need to log into the remote port, + * nor does it need to enumerate the rport for further traffic + * (although, the FC host is free to do so if it desires). + */ +struct fc_bsg_host_els { + /* + * ELS Command Code being sent (must be the same as byte 0 + * of the payload) + */ + uint8_t command_code; + + /* FC Address Identier of the remote port to send the ELS to */ + uint8_t port_id[3]; +}; + +/* Response: + */ +/* fc_bsg_ctels_reply->status values */ +#define FC_CTELS_STATUS_OK 0x00000000 +#define FC_CTELS_STATUS_REJECT 0x00000001 +#define FC_CTELS_STATUS_P_RJT 0x00000002 +#define FC_CTELS_STATUS_F_RJT 0x00000003 +#define FC_CTELS_STATUS_P_BSY 0x00000004 +#define FC_CTELS_STATUS_F_BSY 0x00000006 +struct fc_bsg_ctels_reply { + /* + * Note: An ELS LS_RJT may be reported in 2 ways: + * a) A status of FC_CTELS_STATUS_OK is returned. The caller + * is to look into the ELS receive payload to determine + * LS_ACC or LS_RJT (by contents of word 0). The reject + * data will be in word 1. + * b) A status of FC_CTELS_STATUS_REJECT is returned, The + * rjt_data field will contain valid data. + * + * Note: ELS LS_ACC is determined by an FC_CTELS_STATUS_OK, and + * the receive payload word 0 indicates LS_ACC + * (e.g. value is 0x02xxxxxx). + * + * Note: Similarly, a CT Reject may be reported in 2 ways: + * a) A status of FC_CTELS_STATUS_OK is returned. The caller + * is to look into the CT receive payload to determine + * Accept or Reject (by contents of word 2). The reject + * data will be in word 3. + * b) A status of FC_CTELS_STATUS_REJECT is returned, The + * rjt_data field will contain valid data. + * + * Note: x_RJT/BSY status will indicae that the rjt_data field + * is valid and contains the reason/explanation values. + */ + uint32_t status; /* See FC_CTELS_STATUS_xxx */ + + /* valid if status is not FC_CTELS_STATUS_OK */ + struct { + uint8_t action; /* fragment_id for CT REJECT */ + uint8_t reason_code; + uint8_t reason_explanation; + uint8_t vendor_unique; + } rjt_data; +}; + + +/* FC_BSG_HST_CT : */ + +/* Request: + * This message requests that a CT Request be performed with the + * indicated N_Port_ID. The driver is responsible for logging in with + * the fabric and/or N_Port_ID, etc as per FC rules. This request does + * not mandate that the driver must enumerate the destination in the + * transport. The driver is allowed to decide whether to enumerate it, + * and whether to tear it down after the request. + */ +struct fc_bsg_host_ct { + uint8_t reserved; + + /* FC Address Identier of the remote port to send the ELS to */ + uint8_t port_id[3]; + + /* + * We need words 0-2 of the generic preamble for the LLD's + */ + uint32_t preamble_word0; /* revision & IN_ID */ + uint32_t preamble_word1; /* GS_Type, GS_SubType, Options, Rsvd */ + uint32_t preamble_word2; /* Cmd Code, Max Size */ + +}; +/* Response: + * + * The reply structure is an fc_bsg_ctels_reply structure + */ + + +/* FC_BSG_HST_VENDOR : */ + +/* Request: + * Note: When specifying vendor_id, be sure to read the Vendor Type and ID + * formatting requirements specified in scsi_netlink.h + */ +struct fc_bsg_host_vendor { + /* + * Identifies the vendor that the message is formatted for. This + * should be the recipient of the message. + */ + uint64_t vendor_id; + + /* start of vendor command area */ + uint32_t vendor_cmd[0]; +}; + +/* Response: + */ +struct fc_bsg_host_vendor_reply { + /* start of vendor response area */ + uint32_t vendor_rsp[0]; +}; + + + +/* + * FC Remote Port Messages + */ + +/* FC_BSG_RPT_ELS : */ + +/* Request: + * This message requests that an ELS be performed with the rport. + */ +struct fc_bsg_rport_els { + /* + * ELS Command Code being sent (must be the same as + * byte 0 of the payload) + */ + uint8_t els_code; +}; + +/* Response: + * + * The reply structure is an fc_bsg_ctels_reply structure + */ + + +/* FC_BSG_RPT_CT : */ + +/* Request: + * This message requests that a CT Request be performed with the rport. + */ +struct fc_bsg_rport_ct { + /* + * We need words 0-2 of the generic preamble for the LLD's + */ + uint32_t preamble_word0; /* revision & IN_ID */ + uint32_t preamble_word1; /* GS_Type, GS_SubType, Options, Rsvd */ + uint32_t preamble_word2; /* Cmd Code, Max Size */ +}; +/* Response: + * + * The reply structure is an fc_bsg_ctels_reply structure + */ + + + + +/* request (CDB) structure of the sg_io_v4 */ +struct fc_bsg_request { + uint32_t msgcode; + union { + struct fc_bsg_host_add_rport h_addrport; + struct fc_bsg_host_del_rport h_delrport; + struct fc_bsg_host_els h_els; + struct fc_bsg_host_ct h_ct; + struct fc_bsg_host_vendor h_vendor; + + struct fc_bsg_rport_els r_els; + struct fc_bsg_rport_ct r_ct; + } rqst_data; +}; + + +/* response (request sense data) structure of the sg_io_v4 */ +struct fc_bsg_reply { + /* + * The completion result. Result exists in two forms: + * if negative, it is an -Exxx system errno value. There will + * be no further reply information supplied. + * else, it's the 4-byte scsi error result, with driver, host, + * msg and status fields. The per-msgcode reply structure + * will contain valid data. + */ + uint32_t result; + + /* If there was reply_payload, how much was recevied ? */ + uint32_t reply_payload_rcv_len; + + union { + struct fc_bsg_host_vendor_reply vendor_reply; + + struct fc_bsg_ctels_reply ctels_reply; + } reply_data; +}; + + +#endif /* SCSI_BSG_FC_H */ +
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