diff options
Diffstat (limited to 'drivers/scsi/fcoe/fcoe.c')
| -rw-r--r-- | drivers/scsi/fcoe/fcoe.c | 777 |
1 files changed, 527 insertions, 250 deletions
diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c index e9599600aa2..00ee0ed642a 100644 --- a/drivers/scsi/fcoe/fcoe.c +++ b/drivers/scsi/fcoe/fcoe.c @@ -41,6 +41,7 @@ #include <scsi/fc/fc_encaps.h> #include <scsi/fc/fc_fip.h> +#include <scsi/fc/fc_fcoe.h> #include <scsi/libfc.h> #include <scsi/fc_frame.h> @@ -81,11 +82,11 @@ static int fcoe_rcv(struct sk_buff *, struct net_device *, struct packet_type *, struct net_device *); static int fcoe_percpu_receive_thread(void *); static void fcoe_percpu_clean(struct fc_lport *); -static int fcoe_link_speed_update(struct fc_lport *); static int fcoe_link_ok(struct fc_lport *); static struct fc_lport *fcoe_hostlist_lookup(const struct net_device *); static int fcoe_hostlist_add(const struct fc_lport *); +static void fcoe_hostlist_del(const struct fc_lport *); static int fcoe_device_notification(struct notifier_block *, ulong, void *); static void fcoe_dev_setup(void); @@ -116,6 +117,11 @@ static int fcoe_destroy(struct net_device *netdev); static int fcoe_enable(struct net_device *netdev); static int fcoe_disable(struct net_device *netdev); +/* fcoe_syfs control interface handlers */ +static int fcoe_ctlr_alloc(struct net_device *netdev); +static int fcoe_ctlr_enabled(struct fcoe_ctlr_device *cdev); + + static struct fc_seq *fcoe_elsct_send(struct fc_lport *, u32 did, struct fc_frame *, unsigned int op, @@ -125,8 +131,6 @@ static struct fc_seq *fcoe_elsct_send(struct fc_lport *, void *, u32 timeout); static void fcoe_recv_frame(struct sk_buff *skb); -static void fcoe_get_lesb(struct fc_lport *, struct fc_els_lesb *); - /* notification function for packets from net device */ static struct notifier_block fcoe_notifier = { .notifier_call = fcoe_device_notification, @@ -150,6 +154,21 @@ static int fcoe_vport_create(struct fc_vport *, bool disabled); static int fcoe_vport_disable(struct fc_vport *, bool disable); static void fcoe_set_vport_symbolic_name(struct fc_vport *); static void fcoe_set_port_id(struct fc_lport *, u32, struct fc_frame *); +static void fcoe_fcf_get_vlan_id(struct fcoe_fcf_device *); + +static struct fcoe_sysfs_function_template fcoe_sysfs_templ = { + .set_fcoe_ctlr_mode = fcoe_ctlr_set_fip_mode, + .set_fcoe_ctlr_enabled = fcoe_ctlr_enabled, + .get_fcoe_ctlr_link_fail = fcoe_ctlr_get_lesb, + .get_fcoe_ctlr_vlink_fail = fcoe_ctlr_get_lesb, + .get_fcoe_ctlr_miss_fka = fcoe_ctlr_get_lesb, + .get_fcoe_ctlr_symb_err = fcoe_ctlr_get_lesb, + .get_fcoe_ctlr_err_block = fcoe_ctlr_get_lesb, + .get_fcoe_ctlr_fcs_error = fcoe_ctlr_get_lesb, + + .get_fcoe_fcf_selected = fcoe_fcf_get_selected, + .get_fcoe_fcf_vlan_id = fcoe_fcf_get_vlan_id, +}; static struct libfc_function_template fcoe_libfc_fcn_templ = { .frame_send = fcoe_xmit, @@ -168,6 +187,14 @@ static struct fc_function_template fcoe_nport_fc_functions = { .show_host_supported_fc4s = 1, .show_host_active_fc4s = 1, .show_host_maxframe_size = 1, + .show_host_serial_number = 1, + .show_host_manufacturer = 1, + .show_host_model = 1, + .show_host_model_description = 1, + .show_host_hardware_version = 1, + .show_host_driver_version = 1, + .show_host_firmware_version = 1, + .show_host_optionrom_version = 1, .show_host_port_id = 1, .show_host_supported_speeds = 1, @@ -208,6 +235,14 @@ static struct fc_function_template fcoe_vport_fc_functions = { .show_host_supported_fc4s = 1, .show_host_active_fc4s = 1, .show_host_maxframe_size = 1, + .show_host_serial_number = 1, + .show_host_manufacturer = 1, + .show_host_model = 1, + .show_host_model_description = 1, + .show_host_hardware_version = 1, + .show_host_driver_version = 1, + .show_host_firmware_version = 1, + .show_host_optionrom_version = 1, .show_host_port_id = 1, .show_host_supported_speeds = 1, @@ -266,7 +301,7 @@ static struct scsi_host_template fcoe_shost_template = { static int fcoe_interface_setup(struct fcoe_interface *fcoe, struct net_device *netdev) { - struct fcoe_ctlr *fip = &fcoe->ctlr; + struct fcoe_ctlr *fip = fcoe_to_ctlr(fcoe); struct netdev_hw_addr *ha; struct net_device *real_dev; u8 flogi_maddr[ETH_ALEN]; @@ -350,7 +385,10 @@ static int fcoe_interface_setup(struct fcoe_interface *fcoe, static struct fcoe_interface *fcoe_interface_create(struct net_device *netdev, enum fip_state fip_mode) { + struct fcoe_ctlr_device *ctlr_dev; + struct fcoe_ctlr *ctlr; struct fcoe_interface *fcoe; + int size; int err; if (!try_module_get(THIS_MODULE)) { @@ -360,92 +398,59 @@ static struct fcoe_interface *fcoe_interface_create(struct net_device *netdev, goto out; } - fcoe = kzalloc(sizeof(*fcoe), GFP_KERNEL); - if (!fcoe) { - FCOE_NETDEV_DBG(netdev, "Could not allocate fcoe structure\n"); + size = sizeof(struct fcoe_ctlr) + sizeof(struct fcoe_interface); + ctlr_dev = fcoe_ctlr_device_add(&netdev->dev, &fcoe_sysfs_templ, + size); + if (!ctlr_dev) { + FCOE_DBG("Failed to add fcoe_ctlr_device\n"); fcoe = ERR_PTR(-ENOMEM); - goto out_nomod; + goto out_putmod; } + ctlr = fcoe_ctlr_device_priv(ctlr_dev); + ctlr->cdev = ctlr_dev; + fcoe = fcoe_ctlr_priv(ctlr); + dev_hold(netdev); - kref_init(&fcoe->kref); /* * Initialize FIP. */ - fcoe_ctlr_init(&fcoe->ctlr, fip_mode); - fcoe->ctlr.send = fcoe_fip_send; - fcoe->ctlr.update_mac = fcoe_update_src_mac; - fcoe->ctlr.get_src_addr = fcoe_get_src_mac; + fcoe_ctlr_init(ctlr, fip_mode); + ctlr->send = fcoe_fip_send; + ctlr->update_mac = fcoe_update_src_mac; + ctlr->get_src_addr = fcoe_get_src_mac; err = fcoe_interface_setup(fcoe, netdev); if (err) { - fcoe_ctlr_destroy(&fcoe->ctlr); - kfree(fcoe); + fcoe_ctlr_destroy(ctlr); + fcoe_ctlr_device_delete(ctlr_dev); dev_put(netdev); fcoe = ERR_PTR(err); - goto out_nomod; + goto out_putmod; } goto out; -out_nomod: +out_putmod: module_put(THIS_MODULE); out: return fcoe; } /** - * fcoe_interface_release() - fcoe_port kref release function - * @kref: Embedded reference count in an fcoe_interface struct - */ -static void fcoe_interface_release(struct kref *kref) -{ - struct fcoe_interface *fcoe; - struct net_device *netdev; - - fcoe = container_of(kref, struct fcoe_interface, kref); - netdev = fcoe->netdev; - /* tear-down the FCoE controller */ - fcoe_ctlr_destroy(&fcoe->ctlr); - kfree(fcoe); - dev_put(netdev); - module_put(THIS_MODULE); -} - -/** - * fcoe_interface_get() - Get a reference to a FCoE interface - * @fcoe: The FCoE interface to be held - */ -static inline void fcoe_interface_get(struct fcoe_interface *fcoe) -{ - kref_get(&fcoe->kref); -} - -/** - * fcoe_interface_put() - Put a reference to a FCoE interface - * @fcoe: The FCoE interface to be released - */ -static inline void fcoe_interface_put(struct fcoe_interface *fcoe) -{ - kref_put(&fcoe->kref, fcoe_interface_release); -} - -/** - * fcoe_interface_cleanup() - Clean up a FCoE interface + * fcoe_interface_remove() - remove FCoE interface from netdev * @fcoe: The FCoE interface to be cleaned up * * Caller must be holding the RTNL mutex */ -static void fcoe_interface_cleanup(struct fcoe_interface *fcoe) +static void fcoe_interface_remove(struct fcoe_interface *fcoe) { struct net_device *netdev = fcoe->netdev; - struct fcoe_ctlr *fip = &fcoe->ctlr; + struct fcoe_ctlr *fip = fcoe_to_ctlr(fcoe); u8 flogi_maddr[ETH_ALEN]; const struct net_device_ops *ops; - rtnl_lock(); - /* * Don't listen for Ethernet packets anymore. * synchronize_net() ensures that the packet handlers are not running @@ -474,11 +479,30 @@ static void fcoe_interface_cleanup(struct fcoe_interface *fcoe) FCOE_NETDEV_DBG(netdev, "Failed to disable FCoE" " specific feature for LLD.\n"); } + fcoe->removed = 1; +} + + +/** + * fcoe_interface_cleanup() - Clean up a FCoE interface + * @fcoe: The FCoE interface to be cleaned up + */ +static void fcoe_interface_cleanup(struct fcoe_interface *fcoe) +{ + struct net_device *netdev = fcoe->netdev; + struct fcoe_ctlr *fip = fcoe_to_ctlr(fcoe); + rtnl_lock(); + if (!fcoe->removed) + fcoe_interface_remove(fcoe); rtnl_unlock(); /* Release the self-reference taken during fcoe_interface_create() */ - fcoe_interface_put(fcoe); + /* tear-down the FCoE controller */ + fcoe_ctlr_destroy(fip); + scsi_host_put(fip->lp->host); + dev_put(netdev); + module_put(THIS_MODULE); } /** @@ -496,9 +520,11 @@ static int fcoe_fip_recv(struct sk_buff *skb, struct net_device *netdev, struct net_device *orig_dev) { struct fcoe_interface *fcoe; + struct fcoe_ctlr *ctlr; fcoe = container_of(ptype, struct fcoe_interface, fip_packet_type); - fcoe_ctlr_recv(&fcoe->ctlr, skb); + ctlr = fcoe_to_ctlr(fcoe); + fcoe_ctlr_recv(ctlr, skb); return 0; } @@ -539,13 +565,11 @@ static void fcoe_update_src_mac(struct fc_lport *lport, u8 *addr) struct fcoe_port *port = lport_priv(lport); struct fcoe_interface *fcoe = port->priv; - rtnl_lock(); if (!is_zero_ether_addr(port->data_src_addr)) dev_uc_del(fcoe->netdev, port->data_src_addr); if (!is_zero_ether_addr(addr)) dev_uc_add(fcoe->netdev, addr); memcpy(port->data_src_addr, addr, ETH_ALEN); - rtnl_unlock(); } /** @@ -650,11 +674,13 @@ static int fcoe_netdev_config(struct fc_lport *lport, struct net_device *netdev) u32 mfs; u64 wwnn, wwpn; struct fcoe_interface *fcoe; + struct fcoe_ctlr *ctlr; struct fcoe_port *port; /* Setup lport private data to point to fcoe softc */ port = lport_priv(lport); fcoe = port->priv; + ctlr = fcoe_to_ctlr(fcoe); /* * Determine max frame size based on underlying device and optional @@ -681,10 +707,10 @@ static int fcoe_netdev_config(struct fc_lport *lport, struct net_device *netdev) if (!lport->vport) { if (fcoe_get_wwn(netdev, &wwnn, NETDEV_FCOE_WWNN)) - wwnn = fcoe_wwn_from_mac(fcoe->ctlr.ctl_src_addr, 1, 0); + wwnn = fcoe_wwn_from_mac(ctlr->ctl_src_addr, 1, 0); fc_set_wwnn(lport, wwnn); if (fcoe_get_wwn(netdev, &wwpn, NETDEV_FCOE_WWPN)) - wwpn = fcoe_wwn_from_mac(fcoe->ctlr.ctl_src_addr, + wwpn = fcoe_wwn_from_mac(ctlr->ctl_src_addr, 2, 0); fc_set_wwpn(lport, wwpn); } @@ -734,6 +760,89 @@ static int fcoe_shost_config(struct fc_lport *lport, struct device *dev) return 0; } + +/** + * fcoe_fdmi_info() - Get FDMI related info from net devive for SW FCoE + * @lport: The local port that is associated with the net device + * @netdev: The associated net device + * + * Must be called after fcoe_shost_config() as it will use local port mutex + * + */ +static void fcoe_fdmi_info(struct fc_lport *lport, struct net_device *netdev) +{ + struct fcoe_interface *fcoe; + struct fcoe_port *port; + struct net_device *realdev; + int rc; + + port = lport_priv(lport); + fcoe = port->priv; + realdev = fcoe->realdev; + + if (!realdev) + return; + + /* No FDMI state m/c for NPIV ports */ + if (lport->vport) + return; + + if (realdev->netdev_ops->ndo_fcoe_get_hbainfo) { + struct netdev_fcoe_hbainfo *fdmi; + fdmi = kzalloc(sizeof(*fdmi), GFP_KERNEL); + if (!fdmi) + return; + + rc = realdev->netdev_ops->ndo_fcoe_get_hbainfo(realdev, + fdmi); + if (rc) { + printk(KERN_INFO "fcoe: Failed to retrieve FDMI " + "information from netdev.\n"); + return; + } + + snprintf(fc_host_serial_number(lport->host), + FC_SERIAL_NUMBER_SIZE, + "%s", + fdmi->serial_number); + snprintf(fc_host_manufacturer(lport->host), + FC_SERIAL_NUMBER_SIZE, + "%s", + fdmi->manufacturer); + snprintf(fc_host_model(lport->host), + FC_SYMBOLIC_NAME_SIZE, + "%s", + fdmi->model); + snprintf(fc_host_model_description(lport->host), + FC_SYMBOLIC_NAME_SIZE, + "%s", + fdmi->model_description); + snprintf(fc_host_hardware_version(lport->host), + FC_VERSION_STRING_SIZE, + "%s", + fdmi->hardware_version); + snprintf(fc_host_driver_version(lport->host), + FC_VERSION_STRING_SIZE, + "%s", + fdmi->driver_version); + snprintf(fc_host_optionrom_version(lport->host), + FC_VERSION_STRING_SIZE, + "%s", + fdmi->optionrom_version); + snprintf(fc_host_firmware_version(lport->host), + FC_VERSION_STRING_SIZE, + "%s", + fdmi->firmware_version); + + /* Enable FDMI lport states */ + lport->fdmi_enabled = 1; + kfree(fdmi); + } else { + lport->fdmi_enabled = 0; + printk(KERN_INFO "fcoe: No FDMI support.\n"); + } +} + /** * fcoe_oem_match() - The match routine for the offloaded exchange manager * @fp: The I/O frame @@ -879,11 +988,12 @@ static void fcoe_if_destroy(struct fc_lport *lport) rtnl_lock(); if (!is_zero_ether_addr(port->data_src_addr)) dev_uc_del(netdev, port->data_src_addr); + if (lport->vport) + synchronize_net(); + else + fcoe_interface_remove(fcoe); rtnl_unlock(); - /* Release reference held in fcoe_if_create() */ - fcoe_interface_put(fcoe); - /* Free queued packets for the per-CPU receive threads */ fcoe_percpu_clean(lport); @@ -900,8 +1010,12 @@ static void fcoe_if_destroy(struct fc_lport *lport) /* Free memory used by statistical counters */ fc_lport_free_stats(lport); - /* Release the Scsi_Host */ - scsi_host_put(lport->host); + /* + * Release the Scsi_Host for vport but hold on to + * master lport until it fcoe interface fully cleaned-up. + */ + if (lport->vport) + scsi_host_put(lport->host); } /** @@ -977,6 +1091,7 @@ static int fcoe_ddp_done(struct fc_lport *lport, u16 xid) static struct fc_lport *fcoe_if_create(struct fcoe_interface *fcoe, struct device *parent, int npiv) { + struct fcoe_ctlr *ctlr = fcoe_to_ctlr(fcoe); struct net_device *netdev = fcoe->netdev; struct fc_lport *lport, *n_port; struct fcoe_port *port; @@ -1003,10 +1118,17 @@ static struct fc_lport *fcoe_if_create(struct fcoe_interface *fcoe, port = lport_priv(lport); port->lport = lport; port->priv = fcoe; + port->get_netdev = fcoe_netdev; port->max_queue_depth = FCOE_MAX_QUEUE_DEPTH; port->min_queue_depth = FCOE_MIN_QUEUE_DEPTH; INIT_WORK(&port->destroy_work, fcoe_destroy_work); + /* + * Need to add the lport to the hostlist + * so we catch NETDEV_CHANGE events. + */ + fcoe_hostlist_add(lport); + /* configure a fc_lport including the exchange manager */ rc = fcoe_lport_config(lport); if (rc) { @@ -1040,13 +1162,16 @@ static struct fc_lport *fcoe_if_create(struct fcoe_interface *fcoe, } /* Initialize the library */ - rc = fcoe_libfc_config(lport, &fcoe->ctlr, &fcoe_libfc_fcn_templ, 1); + rc = fcoe_libfc_config(lport, ctlr, &fcoe_libfc_fcn_templ, 1); if (rc) { FCOE_NETDEV_DBG(netdev, "Could not configure libfc for the " "interface\n"); goto out_lp_destroy; } + /* Initialized FDMI information */ + fcoe_fdmi_info(lport, netdev); + /* * fcoe_em_alloc() and fcoe_hostlist_add() both * need to be atomic with respect to other changes to the @@ -1070,12 +1195,12 @@ static struct fc_lport *fcoe_if_create(struct fcoe_interface *fcoe, goto out_lp_destroy; } - fcoe_interface_get(fcoe); return lport; out_lp_destroy: fc_exch_mgr_free(lport); out_host_put: + fcoe_hostlist_del(lport); scsi_host_put(lport->host); out: return ERR_PTR(rc); @@ -1305,6 +1430,7 @@ static int fcoe_rcv(struct sk_buff *skb, struct net_device *netdev, { struct fc_lport *lport; struct fcoe_rcv_info *fr; + struct fcoe_ctlr *ctlr; struct fcoe_interface *fcoe; struct fc_frame_header *fh; struct fcoe_percpu_s *fps; @@ -1312,24 +1438,31 @@ static int fcoe_rcv(struct sk_buff *skb, struct net_device *netdev, unsigned int cpu; fcoe = container_of(ptype, struct fcoe_interface, fcoe_packet_type); - lport = fcoe->ctlr.lp; + ctlr = fcoe_to_ctlr(fcoe); + lport = ctlr->lp; if (unlikely(!lport)) { - FCOE_NETDEV_DBG(netdev, "Cannot find hba structure"); + FCOE_NETDEV_DBG(netdev, "Cannot find hba structure\n"); goto err2; } if (!lport->link_up) goto err2; - FCOE_NETDEV_DBG(netdev, "skb_info: len:%d data_len:%d head:%p " - "data:%p tail:%p end:%p sum:%d dev:%s", + FCOE_NETDEV_DBG(netdev, + "skb_info: len:%d data_len:%d head:%p data:%p tail:%p end:%p sum:%d dev:%s\n", skb->len, skb->data_len, skb->head, skb->data, skb_tail_pointer(skb), skb_end_pointer(skb), skb->csum, skb->dev ? skb->dev->name : "<NULL>"); + + skb = skb_share_check(skb, GFP_ATOMIC); + + if (skb == NULL) + return NET_RX_DROP; + eh = eth_hdr(skb); - if (is_fip_mode(&fcoe->ctlr) && - compare_ether_addr(eh->h_source, fcoe->ctlr.dest_addr)) { + if (is_fip_mode(ctlr) && + !ether_addr_equal(eh->h_source, ctlr->dest_addr)) { FCOE_NETDEV_DBG(netdev, "wrong source mac address:%pM\n", eh->h_source); goto err; @@ -1375,7 +1508,7 @@ static int fcoe_rcv(struct sk_buff *skb, struct net_device *netdev, goto err; fps = &per_cpu(fcoe_percpu, cpu); - spin_lock_bh(&fps->fcoe_rx_list.lock); + spin_lock(&fps->fcoe_rx_list.lock); if (unlikely(!fps->thread)) { /* * The targeted CPU is not ready, let's target @@ -1386,12 +1519,12 @@ static int fcoe_rcv(struct sk_buff *skb, struct net_device *netdev, "ready for incoming skb- using first online " "CPU.\n"); - spin_unlock_bh(&fps->fcoe_rx_list.lock); + spin_unlock(&fps->fcoe_rx_list.lock); cpu = cpumask_first(cpu_online_mask); fps = &per_cpu(fcoe_percpu, cpu); - spin_lock_bh(&fps->fcoe_rx_list.lock); + spin_lock(&fps->fcoe_rx_list.lock); if (!fps->thread) { - spin_unlock_bh(&fps->fcoe_rx_list.lock); + spin_unlock(&fps->fcoe_rx_list.lock); goto err; } } @@ -1402,32 +1535,25 @@ static int fcoe_rcv(struct sk_buff *skb, struct net_device *netdev, * so we're free to queue skbs into it's queue. */ - /* If this is a SCSI-FCP frame, and this is already executing on the - * correct CPU, and the queue for this CPU is empty, then go ahead - * and process the frame directly in the softirq context. - * This lets us process completions without context switching from the - * NET_RX softirq, to our receive processing thread, and then back to - * BLOCK softirq context. + /* + * Note: We used to have a set of conditions under which we would + * call fcoe_recv_frame directly, rather than queuing to the rx list + * as it could save a few cycles, but doing so is prohibited, as + * fcoe_recv_frame has several paths that may sleep, which is forbidden + * in softirq context. */ - if (fh->fh_type == FC_TYPE_FCP && - cpu == smp_processor_id() && - skb_queue_empty(&fps->fcoe_rx_list)) { - spin_unlock_bh(&fps->fcoe_rx_list.lock); - fcoe_recv_frame(skb); - } else { - __skb_queue_tail(&fps->fcoe_rx_list, skb); - if (fps->fcoe_rx_list.qlen == 1) - wake_up_process(fps->thread); - spin_unlock_bh(&fps->fcoe_rx_list.lock); - } + __skb_queue_tail(&fps->fcoe_rx_list, skb); + if (fps->thread->state == TASK_INTERRUPTIBLE) + wake_up_process(fps->thread); + spin_unlock(&fps->fcoe_rx_list.lock); - return 0; + return NET_RX_SUCCESS; err: - per_cpu_ptr(lport->dev_stats, get_cpu())->ErrorFrames++; + per_cpu_ptr(lport->stats, get_cpu())->ErrorFrames++; put_cpu(); err2: kfree_skb(skb); - return -1; + return NET_RX_DROP; } /** @@ -1463,13 +1589,14 @@ static int fcoe_xmit(struct fc_lport *lport, struct fc_frame *fp) struct ethhdr *eh; struct fcoe_crc_eof *cp; struct sk_buff *skb; - struct fcoe_dev_stats *stats; + struct fc_stats *stats; struct fc_frame_header *fh; unsigned int hlen; /* header length implies the version */ unsigned int tlen; /* trailer length */ unsigned int elen; /* eth header, may include vlan */ struct fcoe_port *port = lport_priv(lport); struct fcoe_interface *fcoe = port->priv; + struct fcoe_ctlr *ctlr = fcoe_to_ctlr(fcoe); u8 sof, eof; struct fcoe_hdr *hp; @@ -1485,7 +1612,7 @@ static int fcoe_xmit(struct fc_lport *lport, struct fc_frame *fp) } if (unlikely(fh->fh_type == FC_TYPE_ELS) && - fcoe_ctlr_els_send(&fcoe->ctlr, lport, skb)) + fcoe_ctlr_els_send(ctlr, lport, skb)) return 0; sof = fr_sof(fp); @@ -1498,7 +1625,7 @@ static int fcoe_xmit(struct fc_lport *lport, struct fc_frame *fp) /* crc offload */ if (likely(lport->crc_offload)) { - skb->ip_summed = CHECKSUM_PARTIAL; + skb->ip_summed = CHECKSUM_UNNECESSARY; skb->csum_start = skb_headroom(skb); skb->csum_offset = skb->len; crc = 0; @@ -1515,7 +1642,7 @@ static int fcoe_xmit(struct fc_lport *lport, struct fc_frame *fp) return -ENOMEM; } frag = &skb_shinfo(skb)->frags[skb_shinfo(skb)->nr_frags - 1]; - cp = kmap_atomic(skb_frag_page(frag), KM_SKB_DATA_SOFTIRQ) + cp = kmap_atomic(skb_frag_page(frag)) + frag->page_offset; } else { cp = (struct fcoe_crc_eof *)skb_put(skb, tlen); @@ -1526,7 +1653,7 @@ static int fcoe_xmit(struct fc_lport *lport, struct fc_frame *fp) cp->fcoe_crc32 = cpu_to_le32(~crc); if (skb_is_nonlinear(skb)) { - kunmap_atomic(cp, KM_SKB_DATA_SOFTIRQ); + kunmap_atomic(cp); cp = NULL; } @@ -1536,25 +1663,28 @@ static int fcoe_xmit(struct fc_lport *lport, struct fc_frame *fp) skb_reset_network_header(skb); skb->mac_len = elen; skb->protocol = htons(ETH_P_FCOE); - skb->priority = port->priority; + skb->priority = fcoe->priority; if (fcoe->netdev->priv_flags & IFF_802_1Q_VLAN && - fcoe->realdev->features & NETIF_F_HW_VLAN_TX) { - skb->vlan_tci = VLAN_TAG_PRESENT | - vlan_dev_vlan_id(fcoe->netdev); + fcoe->realdev->features & NETIF_F_HW_VLAN_CTAG_TX) { + /* must set skb->dev before calling vlan_put_tag */ skb->dev = fcoe->realdev; + skb = __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), + vlan_dev_vlan_id(fcoe->netdev)); + if (!skb) + return -ENOMEM; } else skb->dev = fcoe->netdev; /* fill up mac and fcoe headers */ eh = eth_hdr(skb); eh->h_proto = htons(ETH_P_FCOE); - memcpy(eh->h_dest, fcoe->ctlr.dest_addr, ETH_ALEN); - if (fcoe->ctlr.map_dest) + memcpy(eh->h_dest, ctlr->dest_addr, ETH_ALEN); + if (ctlr->map_dest) memcpy(eh->h_dest + 3, fh->fh_d_id, 3); - if (unlikely(fcoe->ctlr.flogi_oxid != FC_XID_UNKNOWN)) - memcpy(eh->h_source, fcoe->ctlr.ctl_src_addr, ETH_ALEN); + if (unlikely(ctlr->flogi_oxid != FC_XID_UNKNOWN)) + memcpy(eh->h_source, ctlr->ctl_src_addr, ETH_ALEN); else memcpy(eh->h_source, port->data_src_addr, ETH_ALEN); @@ -1573,7 +1703,7 @@ static int fcoe_xmit(struct fc_lport *lport, struct fc_frame *fp) skb_shinfo(skb)->gso_size = 0; } /* update tx stats: regardless if LLD fails */ - stats = per_cpu_ptr(lport->dev_stats, get_cpu()); + stats = per_cpu_ptr(lport->stats, get_cpu()); stats->TxFrames++; stats->TxWords += wlen; put_cpu(); @@ -1603,10 +1733,11 @@ static void fcoe_percpu_flush_done(struct sk_buff *skb) static inline int fcoe_filter_frames(struct fc_lport *lport, struct fc_frame *fp) { + struct fcoe_ctlr *ctlr; struct fcoe_interface *fcoe; struct fc_frame_header *fh; struct sk_buff *skb = (struct sk_buff *)fp; - struct fcoe_dev_stats *stats; + struct fc_stats *stats; /* * We only check CRC if no offload is available and if it is @@ -1624,7 +1755,8 @@ static inline int fcoe_filter_frames(struct fc_lport *lport, return 0; fcoe = ((struct fcoe_port *)lport_priv(lport))->priv; - if (is_fip_mode(&fcoe->ctlr) && fc_frame_payload_op(fp) == ELS_LOGO && + ctlr = fcoe_to_ctlr(fcoe); + if (is_fip_mode(ctlr) && fc_frame_payload_op(fp) == ELS_LOGO && ntoh24(fh->fh_s_id) == FC_FID_FLOGI) { FCOE_DBG("fcoe: dropping FCoE lport LOGO in fip mode\n"); return -EINVAL; @@ -1636,7 +1768,7 @@ static inline int fcoe_filter_frames(struct fc_lport *lport, return 0; } - stats = per_cpu_ptr(lport->dev_stats, get_cpu()); + stats = per_cpu_ptr(lport->stats, get_cpu()); stats->InvalidCRCCount++; if (stats->InvalidCRCCount < 5) printk(KERN_WARNING "fcoe: dropping frame with CRC error\n"); @@ -1653,7 +1785,7 @@ static void fcoe_recv_frame(struct sk_buff *skb) u32 fr_len; struct fc_lport *lport; struct fcoe_rcv_info *fr; - struct fcoe_dev_stats *stats; + struct fc_stats *stats; struct fcoe_crc_eof crc_eof; struct fc_frame *fp; struct fcoe_port *port; @@ -1663,13 +1795,13 @@ static void fcoe_recv_frame(struct sk_buff *skb) lport = fr->fr_dev; if (unlikely(!lport)) { if (skb->destructor != fcoe_percpu_flush_done) - FCOE_NETDEV_DBG(skb->dev, "NULL lport in skb"); + FCOE_NETDEV_DBG(skb->dev, "NULL lport in skb\n"); kfree_skb(skb); return; } - FCOE_NETDEV_DBG(skb->dev, "skb_info: len:%d data_len:%d " - "head:%p data:%p tail:%p end:%p sum:%d dev:%s", + FCOE_NETDEV_DBG(skb->dev, + "skb_info: len:%d data_len:%d head:%p data:%p tail:%p end:%p sum:%d dev:%s\n", skb->len, skb->data_len, skb->head, skb->data, skb_tail_pointer(skb), skb_end_pointer(skb), skb->csum, @@ -1684,7 +1816,7 @@ static void fcoe_recv_frame(struct sk_buff *skb) */ hp = (struct fcoe_hdr *) skb_network_header(skb); - stats = per_cpu_ptr(lport->dev_stats, get_cpu()); + stats = per_cpu_ptr(lport->stats, get_cpu()); if (unlikely(FC_FCOE_DECAPS_VER(hp) != FC_FCOE_VER)) { if (stats->ErrorFrames < 5) printk(KERN_WARNING "fcoe: FCoE version " @@ -1736,23 +1868,31 @@ static int fcoe_percpu_receive_thread(void *arg) { struct fcoe_percpu_s *p = arg; struct sk_buff *skb; + struct sk_buff_head tmp; - set_user_nice(current, -20); + skb_queue_head_init(&tmp); + set_user_nice(current, MIN_NICE); + +retry: while (!kthread_should_stop()) { spin_lock_bh(&p->fcoe_rx_list.lock); - while ((skb = __skb_dequeue(&p->fcoe_rx_list)) == NULL) { + skb_queue_splice_init(&p->fcoe_rx_list, &tmp); + + if (!skb_queue_len(&tmp)) { set_current_state(TASK_INTERRUPTIBLE); spin_unlock_bh(&p->fcoe_rx_list.lock); schedule(); set_current_state(TASK_RUNNING); - if (kthread_should_stop()) - return 0; - spin_lock_bh(&p->fcoe_rx_list.lock); + goto retry; } + spin_unlock_bh(&p->fcoe_rx_list.lock); - fcoe_recv_frame(skb); + + while ((skb = __skb_dequeue(&tmp)) != NULL) + fcoe_recv_frame(skb); + } return 0; } @@ -1797,9 +1937,9 @@ static int fcoe_dcb_app_notification(struct notifier_block *notifier, ulong event, void *ptr) { struct dcb_app_type *entry = ptr; + struct fcoe_ctlr *ctlr; struct fcoe_interface *fcoe; struct net_device *netdev; - struct fcoe_port *port; int prio; if (entry->app.selector != DCB_APP_IDTYPE_ETHTYPE) @@ -1814,6 +1954,8 @@ static int fcoe_dcb_app_notification(struct notifier_block *notifier, if (!fcoe) return NOTIFY_OK; + ctlr = fcoe_to_ctlr(fcoe); + if (entry->dcbx & DCB_CAP_DCBX_VER_CEE) prio = ffs(entry->app.priority) - 1; else @@ -1824,12 +1966,10 @@ static int fcoe_dcb_app_notification(struct notifier_block *notifier, if (entry->app.protocol == ETH_P_FIP || entry->app.protocol == ETH_P_FCOE) - fcoe->ctlr.priority = prio; + ctlr->priority = prio; - if (entry->app.protocol == ETH_P_FCOE) { - port = lport_priv(fcoe->ctlr.lp); - port->priority = prio; - } + if (entry->app.protocol == ETH_P_FCOE) + fcoe->priority = prio; return NOTIFY_OK; } @@ -1847,18 +1987,21 @@ static int fcoe_dcb_app_notification(struct notifier_block *notifier, static int fcoe_device_notification(struct notifier_block *notifier, ulong event, void *ptr) { + struct fcoe_ctlr_device *cdev; struct fc_lport *lport = NULL; - struct net_device *netdev = ptr; + struct net_device *netdev = netdev_notifier_info_to_dev(ptr); + struct fcoe_ctlr *ctlr; struct fcoe_interface *fcoe; struct fcoe_port *port; - struct fcoe_dev_stats *stats; + struct fc_stats *stats; u32 link_possible = 1; u32 mfs; int rc = NOTIFY_OK; list_for_each_entry(fcoe, &fcoe_hostlist, list) { if (fcoe->netdev == netdev) { - lport = fcoe->ctlr.lp; + ctlr = fcoe_to_ctlr(fcoe); + lport = ctlr->lp; break; } } @@ -1887,7 +2030,7 @@ static int fcoe_device_notification(struct notifier_block *notifier, break; case NETDEV_UNREGISTER: list_del(&fcoe->list); - port = lport_priv(fcoe->ctlr.lp); + port = lport_priv(ctlr->lp); queue_work(fcoe_wq, &port->destroy_work); goto out; break; @@ -1901,13 +2044,29 @@ static int fcoe_device_notification(struct notifier_block *notifier, fcoe_link_speed_update(lport); - if (link_possible && !fcoe_link_ok(lport)) - fcoe_ctlr_link_up(&fcoe->ctlr); - else if (fcoe_ctlr_link_down(&fcoe->ctlr)) { - stats = per_cpu_ptr(lport->dev_stats, get_cpu()); - stats->LinkFailureCount++; - put_cpu(); - fcoe_clean_pending_queue(lport); + cdev = fcoe_ctlr_to_ctlr_dev(ctlr); + + if (link_possible && !fcoe_link_ok(lport)) { + switch (cdev->enabled) { + case FCOE_CTLR_DISABLED: + pr_info("Link up while interface is disabled.\n"); + break; + case FCOE_CTLR_ENABLED: + case FCOE_CTLR_UNUSED: + fcoe_ctlr_link_up(ctlr); + }; + } else if (fcoe_ctlr_link_down(ctlr)) { + switch (cdev->enabled) { + case FCOE_CTLR_DISABLED: + pr_info("Link down while interface is disabled.\n"); + break; + case FCOE_CTLR_ENABLED: + case FCOE_CTLR_UNUSED: + stats = per_cpu_ptr(lport->stats, get_cpu()); + stats->LinkFailureCount++; + put_cpu(); + fcoe_clean_pending_queue(lport); + }; } out: return rc; @@ -1920,9 +2079,12 @@ out: * Called from fcoe transport. * * Returns: 0 for success + * + * Deprecated: use fcoe_ctlr_enabled() */ static int fcoe_disable(struct net_device *netdev) { + struct fcoe_ctlr *ctlr; struct fcoe_interface *fcoe; int rc = 0; @@ -1933,8 +2095,9 @@ static int fcoe_disable(struct net_device *netdev) rtnl_unlock(); if (fcoe) { - fcoe_ctlr_link_down(&fcoe->ctlr); - fcoe_clean_pending_queue(fcoe->ctlr.lp); + ctlr = fcoe_to_ctlr(fcoe); + fcoe_ctlr_link_down(ctlr); + fcoe_clean_pending_queue(ctlr->lp); } else rc = -ENODEV; @@ -1952,6 +2115,7 @@ static int fcoe_disable(struct net_device *netdev) */ static int fcoe_enable(struct net_device *netdev) { + struct fcoe_ctlr *ctlr; struct fcoe_interface *fcoe; int rc = 0; @@ -1960,16 +2124,49 @@ static int fcoe_enable(struct net_device *netdev) fcoe = fcoe_hostlist_lookup_port(netdev); rtnl_unlock(); - if (!fcoe) + if (!fcoe) { rc = -ENODEV; - else if (!fcoe_link_ok(fcoe->ctlr.lp)) - fcoe_ctlr_link_up(&fcoe->ctlr); + goto out; + } + + ctlr = fcoe_to_ctlr(fcoe); + if (!fcoe_link_ok(ctlr->lp)) + fcoe_ctlr_link_up(ctlr); + +out: mutex_unlock(&fcoe_config_mutex); return rc; } /** + * fcoe_ctlr_enabled() - Enable or disable an FCoE Controller + * @cdev: The FCoE Controller that is being enabled or disabled + * + * fcoe_sysfs will ensure that the state of 'enabled' has + * changed, so no checking is necessary here. This routine simply + * calls fcoe_enable or fcoe_disable, both of which are deprecated. + * When those routines are removed the functionality can be merged + * here. + */ +static int fcoe_ctlr_enabled(struct fcoe_ctlr_device *cdev) +{ + struct fcoe_ctlr *ctlr = fcoe_ctlr_device_priv(cdev); + struct fc_lport *lport = ctlr->lp; + struct net_device *netdev = fcoe_netdev(lport); + + switch (cdev->enabled) { + case FCOE_CTLR_ENABLED: + return fcoe_enable(netdev); + case FCOE_CTLR_DISABLED: + return fcoe_disable(netdev); + case FCOE_CTLR_UNUSED: + default: + return -ENOTSUPP; + }; +} + +/** * fcoe_destroy() - Destroy a FCoE interface * @netdev : The net_device object the Ethernet interface to create on * @@ -1979,6 +2176,7 @@ static int fcoe_enable(struct net_device *netdev) */ static int fcoe_destroy(struct net_device *netdev) { + struct fcoe_ctlr *ctlr; struct fcoe_interface *fcoe; struct fc_lport *lport; struct fcoe_port *port; @@ -1991,7 +2189,8 @@ static int fcoe_destroy(struct net_device *netdev) rc = -ENODEV; goto out_nodev; } - lport = fcoe->ctlr.lp; + ctlr = fcoe_to_ctlr(fcoe); + lport = ctlr->lp; port = lport_priv(lport); list_del(&fcoe->list); queue_work(fcoe_wq, &port->destroy_work); @@ -2007,24 +2206,47 @@ out_nodev: */ static void fcoe_destroy_work(struct work_struct *work) { + struct fcoe_ctlr_device *cdev; + struct fcoe_ctlr *ctlr; struct fcoe_port *port; struct fcoe_interface *fcoe; - int npiv = 0; + struct Scsi_Host *shost; + struct fc_host_attrs *fc_host; + unsigned long flags; + struct fc_vport *vport; + struct fc_vport *next_vport; port = container_of(work, struct fcoe_port, destroy_work); - mutex_lock(&fcoe_config_mutex); + shost = port->lport->host; + fc_host = shost_to_fc_host(shost); + + /* Loop through all the vports and mark them for deletion */ + spin_lock_irqsave(shost->host_lock, flags); + list_for_each_entry_safe(vport, next_vport, &fc_host->vports, peers) { + if (vport->flags & (FC_VPORT_DEL | FC_VPORT_CREATING)) { + continue; + } else { + vport->flags |= FC_VPORT_DELETING; + queue_work(fc_host_work_q(shost), + &vport->vport_delete_work); + } + } + spin_unlock_irqrestore(shost->host_lock, flags); + + flush_workqueue(fc_host_work_q(shost)); - /* set if this is an NPIV port */ - npiv = port->lport->vport ? 1 : 0; + mutex_lock(&fcoe_config_mutex); fcoe = port->priv; - fcoe_if_destroy(port->lport); + ctlr = fcoe_to_ctlr(fcoe); + cdev = fcoe_ctlr_to_ctlr_dev(ctlr); - /* Do not tear down the fcoe interface for NPIV port */ - if (!npiv) - fcoe_interface_cleanup(fcoe); + fcoe_if_destroy(port->lport); + fcoe_interface_cleanup(fcoe); mutex_unlock(&fcoe_config_mutex); + + fcoe_ctlr_device_delete(cdev); } /** @@ -2053,7 +2275,7 @@ static void fcoe_dcb_create(struct fcoe_interface *fcoe) int dcbx; u8 fup, up; struct net_device *netdev = fcoe->realdev; - struct fcoe_port *port = lport_priv(fcoe->ctlr.lp); + struct fcoe_ctlr *ctlr = fcoe_to_ctlr(fcoe); struct dcb_app app = { .priority = 0, .protocol = ETH_P_FCOE @@ -2075,24 +2297,36 @@ static void fcoe_dcb_create(struct fcoe_interface *fcoe) fup = dcb_getapp(netdev, &app); } - port->priority = ffs(up) ? ffs(up) - 1 : 0; - fcoe->ctlr.priority = ffs(fup) ? ffs(fup) - 1 : port->priority; + fcoe->priority = ffs(up) ? ffs(up) - 1 : 0; + ctlr->priority = ffs(fup) ? ffs(fup) - 1 : fcoe->priority; } #endif } +enum fcoe_create_link_state { + FCOE_CREATE_LINK_DOWN, + FCOE_CREATE_LINK_UP, +}; + /** - * fcoe_create() - Create a fcoe interface - * @netdev : The net_device object the Ethernet interface to create on - * @fip_mode: The FIP mode for this creation + * _fcoe_create() - (internal) Create a fcoe interface + * @netdev : The net_device object the Ethernet interface to create on + * @fip_mode: The FIP mode for this creation + * @link_state: The ctlr link state on creation * - * Called from fcoe transport + * Called from either the libfcoe 'create' module parameter + * via fcoe_create or from fcoe_syfs's ctlr_create file. * - * Returns: 0 for success + * libfcoe's 'create' module parameter is deprecated so some + * consolidation of code can be done when that interface is + * removed. */ -static int fcoe_create(struct net_device *netdev, enum fip_state fip_mode) +static int _fcoe_create(struct net_device *netdev, enum fip_state fip_mode, + enum fcoe_create_link_state link_state) { int rc = 0; + struct fcoe_ctlr_device *ctlr_dev; + struct fcoe_ctlr *ctlr; struct fcoe_interface *fcoe; struct fc_lport *lport; @@ -2111,70 +2345,91 @@ static int fcoe_create(struct net_device *netdev, enum fip_state fip_mode) goto out_nodev; } - lport = fcoe_if_create(fcoe, &netdev->dev, 0); + ctlr = fcoe_to_ctlr(fcoe); + ctlr_dev = fcoe_ctlr_to_ctlr_dev(ctlr); + lport = fcoe_if_create(fcoe, &ctlr_dev->dev, 0); if (IS_ERR(lport)) { printk(KERN_ERR "fcoe: Failed to create interface (%s)\n", netdev->name); rc = -EIO; rtnl_unlock(); fcoe_interface_cleanup(fcoe); - goto out_nortnl; + mutex_unlock(&fcoe_config_mutex); + fcoe_ctlr_device_delete(ctlr_dev); + goto out; } /* Make this the "master" N_Port */ - fcoe->ctlr.lp = lport; + ctlr->lp = lport; /* setup DCB priority attributes. */ fcoe_dcb_create(fcoe); - /* add to lports list */ - fcoe_hostlist_add(lport); - /* start FIP Discovery and FLOGI */ lport->boot_time = jiffies; fc_fabric_login(lport); - if (!fcoe_link_ok(lport)) - fcoe_ctlr_link_up(&fcoe->ctlr); + + /* + * If the fcoe_ctlr_device is to be set to DISABLED + * it must be done after the lport is added to the + * hostlist, but before the rtnl_lock is released. + * This is because the rtnl_lock protects the + * hostlist that fcoe_device_notification uses. If + * the FCoE Controller is intended to be created + * DISABLED then 'enabled' needs to be considered + * handling link events. 'enabled' must be set + * before the lport can be found in the hostlist + * when a link up event is received. + */ + if (link_state == FCOE_CREATE_LINK_UP) + ctlr_dev->enabled = FCOE_CTLR_ENABLED; + else + ctlr_dev->enabled = FCOE_CTLR_DISABLED; + + if (link_state == FCOE_CREATE_LINK_UP && + !fcoe_link_ok(lport)) { + rtnl_unlock(); + fcoe_ctlr_link_up(ctlr); + mutex_unlock(&fcoe_config_mutex); + return rc; + } out_nodev: rtnl_unlock(); -out_nortnl: mutex_unlock(&fcoe_config_mutex); +out: return rc; } /** - * fcoe_link_speed_update() - Update the supported and actual link speeds - * @lport: The local port to update speeds for + * fcoe_create() - Create a fcoe interface + * @netdev : The net_device object the Ethernet interface to create on + * @fip_mode: The FIP mode for this creation + * + * Called from fcoe transport * - * Returns: 0 if the ethtool query was successful - * -1 if the ethtool query failed + * Returns: 0 for success */ -static int fcoe_link_speed_update(struct fc_lport *lport) +static int fcoe_create(struct net_device *netdev, enum fip_state fip_mode) { - struct net_device *netdev = fcoe_netdev(lport); - struct ethtool_cmd ecmd; - - if (!__ethtool_get_settings(netdev, &ecmd)) { - lport->link_supported_speeds &= - ~(FC_PORTSPEED_1GBIT | FC_PORTSPEED_10GBIT); - if (ecmd.supported & (SUPPORTED_1000baseT_Half | - SUPPORTED_1000baseT_Full)) - lport->link_supported_speeds |= FC_PORTSPEED_1GBIT; - if (ecmd.supported & SUPPORTED_10000baseT_Full) - lport->link_supported_speeds |= - FC_PORTSPEED_10GBIT; - switch (ethtool_cmd_speed(&ecmd)) { - case SPEED_1000: - lport->link_speed = FC_PORTSPEED_1GBIT; - break; - case SPEED_10000: - lport->link_speed = FC_PORTSPEED_10GBIT; - break; - } - return 0; - } - return -1; + return _fcoe_create(netdev, fip_mode, FCOE_CREATE_LINK_UP); +} + +/** + * fcoe_ctlr_alloc() - Allocate a fcoe interface from fcoe_sysfs + * @netdev: The net_device to be used by the allocated FCoE Controller + * + * This routine is called from fcoe_sysfs. It will start the fcoe_ctlr + * in a link_down state. The allows the user an opportunity to configure + * the FCoE Controller from sysfs before enabling the FCoE Controller. + * + * Creating in with this routine starts the FCoE Controller in Fabric + * mode. The user can change to VN2VN or another mode before enabling. + */ +static int fcoe_ctlr_alloc(struct net_device *netdev) +{ + return _fcoe_create(netdev, FIP_MODE_FABRIC, + FCOE_CREATE_LINK_DOWN); } /** @@ -2207,39 +2462,22 @@ static int fcoe_link_ok(struct fc_lport *lport) static void fcoe_percpu_clean(struct fc_lport *lport) { struct fcoe_percpu_s *pp; - struct fcoe_rcv_info *fr; - struct sk_buff_head *list; - struct sk_buff *skb, *next; - struct sk_buff *head; + struct sk_buff *skb; unsigned int cpu; for_each_possible_cpu(cpu) { pp = &per_cpu(fcoe_percpu, cpu); - spin_lock_bh(&pp->fcoe_rx_list.lock); - list = &pp->fcoe_rx_list; - head = list->next; - for (skb = head; skb != (struct sk_buff *)list; - skb = next) { - next = skb->next; - fr = fcoe_dev_from_skb(skb); - if (fr->fr_dev == lport) { - __skb_unlink(skb, list); - kfree_skb(skb); - } - } - if (!pp->thread || !cpu_online(cpu)) { - spin_unlock_bh(&pp->fcoe_rx_list.lock); + if (!pp->thread || !cpu_online(cpu)) continue; - } skb = dev_alloc_skb(0); - if (!skb) { - spin_unlock_bh(&pp->fcoe_rx_list.lock); + if (!skb) continue; - } + skb->destructor = fcoe_percpu_flush_done; + spin_lock_bh(&pp->fcoe_rx_list.lock); __skb_queue_tail(&pp->fcoe_rx_list, skb); if (pp->fcoe_rx_list.qlen == 1) wake_up_process(pp->thread); @@ -2260,11 +2498,15 @@ static int fcoe_reset(struct Scsi_Host *shost) struct fc_lport *lport = shost_priv(shost); struct fcoe_port *port = lport_priv(lport); struct fcoe_interface *fcoe = port->priv; + struct fcoe_ctlr *ctlr = fcoe_to_ctlr(fcoe); + struct fcoe_ctlr_device *cdev = fcoe_ctlr_to_ctlr_dev(ctlr); + + fcoe_ctlr_link_down(ctlr); + fcoe_clean_pending_queue(ctlr->lp); - fcoe_ctlr_link_down(&fcoe->ctlr); - fcoe_clean_pending_queue(fcoe->ctlr.lp); - if (!fcoe_link_ok(fcoe->ctlr.lp)) - fcoe_ctlr_link_up(&fcoe->ctlr); + if (cdev->enabled != FCOE_CTLR_DISABLED && + !fcoe_link_ok(ctlr->lp)) + fcoe_ctlr_link_up(ctlr); return 0; } @@ -2299,10 +2541,12 @@ fcoe_hostlist_lookup_port(const struct net_device *netdev) */ static struct fc_lport *fcoe_hostlist_lookup(const struct net_device *netdev) { + struct fcoe_ctlr *ctlr; struct fcoe_interface *fcoe; fcoe = fcoe_hostlist_lookup_port(netdev); - return (fcoe) ? fcoe->ctlr.lp : NULL; + ctlr = fcoe_to_ctlr(fcoe); + return (fcoe) ? ctlr->lp : NULL; } /** @@ -2328,12 +2572,31 @@ static int fcoe_hostlist_add(const struct fc_lport *lport) return 0; } +/** + * fcoe_hostlist_del() - Remove the FCoE interface identified by a local + * port to the hostlist + * @lport: The local port that identifies the FCoE interface to be added + * + * Locking: must be called with the RTNL mutex held + * + */ +static void fcoe_hostlist_del(const struct fc_lport *lport) +{ + struct fcoe_interface *fcoe; + struct fcoe_port *port; + + port = lport_priv(lport); + fcoe = port->priv; + list_del(&fcoe->list); + return; +} static struct fcoe_transport fcoe_sw_transport = { .name = {FCOE_TRANSPORT_DEFAULT}, .attached = false, .list = LIST_HEAD_INIT(fcoe_sw_transport.list), .match = fcoe_match, + .alloc = fcoe_ctlr_alloc, .create = fcoe_create, .destroy = fcoe_destroy, .enable = fcoe_enable, @@ -2370,14 +2633,18 @@ static int __init fcoe_init(void) skb_queue_head_init(&p->fcoe_rx_list); } + cpu_notifier_register_begin(); + for_each_online_cpu(cpu) fcoe_percpu_thread_create(cpu); /* Initialize per CPU interrupt thread */ - rc = register_hotcpu_notifier(&fcoe_cpu_notifier); + rc = __register_hotcpu_notifier(&fcoe_cpu_notifier); if (rc) goto out_free; + cpu_notifier_register_done(); + /* Setup link change notification */ fcoe_dev_setup(); @@ -2392,6 +2659,9 @@ out_free: for_each_online_cpu(cpu) { fcoe_percpu_thread_destroy(cpu); } + + cpu_notifier_register_done(); + mutex_unlock(&fcoe_config_mutex); destroy_workqueue(fcoe_wq); return rc; @@ -2406,6 +2676,7 @@ module_init(fcoe_init); static void __exit fcoe_exit(void) { struct fcoe_interface *fcoe, *tmp; + struct fcoe_ctlr *ctlr; struct fcoe_port *port; unsigned int cpu; @@ -2416,17 +2687,22 @@ static void __exit fcoe_exit(void) /* releases the associated fcoe hosts */ rtnl_lock(); list_for_each_entry_safe(fcoe, tmp, &fcoe_hostlist, list) { - list_del(&fcoe->list); - port = lport_priv(fcoe->ctlr.lp); + ctlr = fcoe_to_ctlr(fcoe); + port = lport_priv(ctlr->lp); + fcoe_hostlist_del(port->lport); queue_work(fcoe_wq, &port->destroy_work); } rtnl_unlock(); - unregister_hotcpu_notifier(&fcoe_cpu_notifier); + cpu_notifier_register_begin(); for_each_online_cpu(cpu) fcoe_percpu_thread_destroy(cpu); + __unregister_hotcpu_notifier(&fcoe_cpu_notifier); + + cpu_notifier_register_done(); + mutex_unlock(&fcoe_config_mutex); /* @@ -2513,7 +2789,7 @@ static struct fc_seq *fcoe_elsct_send(struct fc_lport *lport, u32 did, { struct fcoe_port *port = lport_priv(lport); struct fcoe_interface *fcoe = port->priv; - struct fcoe_ctlr *fip = &fcoe->ctlr; + struct fcoe_ctlr *fip = fcoe_to_ctlr(fcoe); struct fc_frame_header *fh = fc_frame_header_get(fp); switch (op) { @@ -2593,12 +2869,15 @@ static int fcoe_vport_destroy(struct fc_vport *vport) struct Scsi_Host *shost = vport_to_shost(vport); struct fc_lport *n_port = shost_priv(shost); struct fc_lport *vn_port = vport->dd_data; - struct fcoe_port *port = lport_priv(vn_port); mutex_lock(&n_port->lp_mutex); list_del(&vn_port->list); mutex_unlock(&n_port->lp_mutex); - queue_work(fcoe_wq, &port->destroy_work); + + mutex_lock(&fcoe_config_mutex); + fcoe_if_destroy(vn_port); + mutex_unlock(&fcoe_config_mutex); + return 0; } @@ -2654,17 +2933,14 @@ static void fcoe_set_vport_symbolic_name(struct fc_vport *vport) NULL, NULL, 3 * lport->r_a_tov); } -/** - * fcoe_get_lesb() - Fill the FCoE Link Error Status Block - * @lport: the local port - * @fc_lesb: the link error status block - */ -static void fcoe_get_lesb(struct fc_lport *lport, - struct fc_els_lesb *fc_lesb) +static void fcoe_fcf_get_vlan_id(struct fcoe_fcf_device *fcf_dev) { - struct net_device *netdev = fcoe_netdev(lport); + struct fcoe_ctlr_device *ctlr_dev = + fcoe_fcf_dev_to_ctlr_dev(fcf_dev); + struct fcoe_ctlr *ctlr = fcoe_ctlr_device_priv(ctlr_dev); + struct fcoe_interface *fcoe = fcoe_ctlr_priv(ctlr); - __fcoe_get_lesb(lport, fc_lesb, netdev); + fcf_dev->vlan_id = vlan_dev_vlan_id(fcoe->netdev); } /** @@ -2684,7 +2960,8 @@ static void fcoe_set_port_id(struct fc_lport *lport, { struct fcoe_port *port = lport_priv(lport); struct fcoe_interface *fcoe = port->priv; + struct fcoe_ctlr *ctlr = fcoe_to_ctlr(fcoe); if (fp && fc_frame_payload_op(fp) == ELS_FLOGI) - fcoe_ctlr_recv_flogi(&fcoe->ctlr, lport, fp); + fcoe_ctlr_recv_flogi(ctlr, lport, fp); } |
