--- /dev/null
+/* bnx2fc_fcoe.c: QLogic NetXtreme II Linux FCoE offload driver.
+ * This file contains the code that interacts with libfc, libfcoe,
+ * cnic modules to create FCoE instances, send/receive non-offloaded
+ * FIP/FCoE packets, listen to link events etc.
+ *
+ * Copyright (c) 2008 - 2013 Broadcom Corporation
+ * Copyright (c) 2014, QLogic 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.
+ *
+ * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
+ */
+
+#include "bnx2fc.h"
+
+static struct list_head adapter_list;
+static struct list_head if_list;
+static u32 adapter_count;
+static DEFINE_MUTEX(bnx2fc_dev_lock);
+DEFINE_PER_CPU(struct bnx2fc_percpu_s, bnx2fc_percpu);
+
+#define DRV_MODULE_NAME "bnx2fc"
+#define DRV_MODULE_VERSION BNX2FC_VERSION
+#define DRV_MODULE_RELDATE "Dec 11, 2013"
+
+
+static char version[] =
+ "QLogic NetXtreme II FCoE Driver " DRV_MODULE_NAME \
+ " v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
+
+
+MODULE_AUTHOR("Bhanu Prakash Gollapudi <bprakash@broadcom.com>");
+MODULE_DESCRIPTION("QLogic NetXtreme II BCM57710 FCoE Driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_MODULE_VERSION);
+
+#define BNX2FC_MAX_QUEUE_DEPTH 256
+#define BNX2FC_MIN_QUEUE_DEPTH 32
+#define FCOE_WORD_TO_BYTE 4
+
+static struct scsi_transport_template *bnx2fc_transport_template;
+static struct scsi_transport_template *bnx2fc_vport_xport_template;
+
+struct workqueue_struct *bnx2fc_wq;
+
+/* bnx2fc structure needs only one instance of the fcoe_percpu_s structure.
+ * Here the io threads are per cpu but the l2 thread is just one
+ */
+struct fcoe_percpu_s bnx2fc_global;
+DEFINE_SPINLOCK(bnx2fc_global_lock);
+
+static struct cnic_ulp_ops bnx2fc_cnic_cb;
+static struct libfc_function_template bnx2fc_libfc_fcn_templ;
+static struct scsi_host_template bnx2fc_shost_template;
+static struct fc_function_template bnx2fc_transport_function;
+static struct fcoe_sysfs_function_template bnx2fc_fcoe_sysfs_templ;
+static struct fc_function_template bnx2fc_vport_xport_function;
+static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode);
+static void __bnx2fc_destroy(struct bnx2fc_interface *interface);
+static int bnx2fc_destroy(struct net_device *net_device);
+static int bnx2fc_enable(struct net_device *netdev);
+static int bnx2fc_disable(struct net_device *netdev);
+
+/* fcoe_syfs control interface handlers */
+static int bnx2fc_ctlr_alloc(struct net_device *netdev);
+static int bnx2fc_ctlr_enabled(struct fcoe_ctlr_device *cdev);
+
+static void bnx2fc_recv_frame(struct sk_buff *skb);
+
+static void bnx2fc_start_disc(struct bnx2fc_interface *interface);
+static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev);
+static int bnx2fc_lport_config(struct fc_lport *lport);
+static int bnx2fc_em_config(struct fc_lport *lport, struct bnx2fc_hba *hba);
+static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba);
+static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba);
+static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba);
+static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba);
+static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface,
+ struct device *parent, int npiv);
+static void bnx2fc_destroy_work(struct work_struct *work);
+
+static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device *phys_dev);
+static struct bnx2fc_interface *bnx2fc_interface_lookup(struct net_device
+ *phys_dev);
+static inline void bnx2fc_interface_put(struct bnx2fc_interface *interface);
+static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic);
+
+static int bnx2fc_fw_init(struct bnx2fc_hba *hba);
+static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba);
+
+static void bnx2fc_port_shutdown(struct fc_lport *lport);
+static void bnx2fc_stop(struct bnx2fc_interface *interface);
+static int __init bnx2fc_mod_init(void);
+static void __exit bnx2fc_mod_exit(void);
+
+unsigned int bnx2fc_debug_level;
+module_param_named(debug_logging, bnx2fc_debug_level, int, S_IRUGO|S_IWUSR);
+
+static int bnx2fc_cpu_callback(struct notifier_block *nfb,
+ unsigned long action, void *hcpu);
+/* notification function for CPU hotplug events */
+static struct notifier_block bnx2fc_cpu_notifier = {
+ .notifier_call = bnx2fc_cpu_callback,
+};
+
+static inline struct net_device *bnx2fc_netdev(const struct fc_lport *lport)
+{
+ return ((struct bnx2fc_interface *)
+ ((struct fcoe_port *)lport_priv(lport))->priv)->netdev;
+}
+
+static void bnx2fc_fcf_get_vlan_id(struct fcoe_fcf_device *fcf_dev)
+{
+ 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 bnx2fc_interface *fcoe = fcoe_ctlr_priv(ctlr);
+
+ fcf_dev->vlan_id = fcoe->vlan_id;
+}
+
+static void bnx2fc_clean_rx_queue(struct fc_lport *lp)
+{
+ struct fcoe_percpu_s *bg;
+ struct fcoe_rcv_info *fr;
+ struct sk_buff_head *list;
+ struct sk_buff *skb, *next;
+ struct sk_buff *head;
+
+ bg = &bnx2fc_global;
+ spin_lock_bh(&bg->fcoe_rx_list.lock);
+ list = &bg->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 == lp) {
+ __skb_unlink(skb, list);
+ kfree_skb(skb);
+ }
+ }
+ spin_unlock_bh(&bg->fcoe_rx_list.lock);
+}
+
+int bnx2fc_get_paged_crc_eof(struct sk_buff *skb, int tlen)
+{
+ int rc;
+ spin_lock(&bnx2fc_global_lock);
+ rc = fcoe_get_paged_crc_eof(skb, tlen, &bnx2fc_global);
+ spin_unlock(&bnx2fc_global_lock);
+
+ return rc;
+}
+
+static void bnx2fc_abort_io(struct fc_lport *lport)
+{
+ /*
+ * This function is no-op for bnx2fc, but we do
+ * not want to leave it as NULL either, as libfc
+ * can call the default function which is
+ * fc_fcp_abort_io.
+ */
+}
+
+static void bnx2fc_cleanup(struct fc_lport *lport)
+{
+ struct fcoe_port *port = lport_priv(lport);
+ struct bnx2fc_interface *interface = port->priv;
+ struct bnx2fc_hba *hba = interface->hba;
+ struct bnx2fc_rport *tgt;
+ int i;
+
+ BNX2FC_MISC_DBG("Entered %s\n", __func__);
+ mutex_lock(&hba->hba_mutex);
+ spin_lock_bh(&hba->hba_lock);
+ for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) {
+ tgt = hba->tgt_ofld_list[i];
+ if (tgt) {
+ /* Cleanup IOs belonging to requested vport */
+ if (tgt->port == port) {
+ spin_unlock_bh(&hba->hba_lock);
+ BNX2FC_TGT_DBG(tgt, "flush/cleanup\n");
+ bnx2fc_flush_active_ios(tgt);
+ spin_lock_bh(&hba->hba_lock);
+ }
+ }
+ }
+ spin_unlock_bh(&hba->hba_lock);
+ mutex_unlock(&hba->hba_mutex);
+}
+
+static int bnx2fc_xmit_l2_frame(struct bnx2fc_rport *tgt,
+ struct fc_frame *fp)
+{
+ struct fc_rport_priv *rdata = tgt->rdata;
+ struct fc_frame_header *fh;
+ int rc = 0;
+
+ fh = fc_frame_header_get(fp);
+ BNX2FC_TGT_DBG(tgt, "Xmit L2 frame rport = 0x%x, oxid = 0x%x, "
+ "r_ctl = 0x%x\n", rdata->ids.port_id,
+ ntohs(fh->fh_ox_id), fh->fh_r_ctl);
+ if ((fh->fh_type == FC_TYPE_ELS) &&
+ (fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
+
+ switch (fc_frame_payload_op(fp)) {
+ case ELS_ADISC:
+ rc = bnx2fc_send_adisc(tgt, fp);
+ break;
+ case ELS_LOGO:
+ rc = bnx2fc_send_logo(tgt, fp);
+ break;
+ case ELS_RLS:
+ rc = bnx2fc_send_rls(tgt, fp);
+ break;
+ default:
+ break;
+ }
+ } else if ((fh->fh_type == FC_TYPE_BLS) &&
+ (fh->fh_r_ctl == FC_RCTL_BA_ABTS))
+ BNX2FC_TGT_DBG(tgt, "ABTS frame\n");
+ else {
+ BNX2FC_TGT_DBG(tgt, "Send L2 frame type 0x%x "
+ "rctl 0x%x thru non-offload path\n",
+ fh->fh_type, fh->fh_r_ctl);
+ return -ENODEV;
+ }
+ if (rc)
+ return -ENOMEM;
+ else
+ return 0;
+}
+
+/**
+ * bnx2fc_xmit - bnx2fc's FCoE frame transmit function
+ *
+ * @lport: the associated local port
+ * @fp: the fc_frame to be transmitted
+ */
+static int bnx2fc_xmit(struct fc_lport *lport, struct fc_frame *fp)
+{
+ struct ethhdr *eh;
+ struct fcoe_crc_eof *cp;
+ struct sk_buff *skb;
+ struct fc_frame_header *fh;
+ struct bnx2fc_interface *interface;
+ struct fcoe_ctlr *ctlr;
+ struct bnx2fc_hba *hba;
+ struct fcoe_port *port;
+ struct fcoe_hdr *hp;
+ struct bnx2fc_rport *tgt;
+ struct fc_stats *stats;
+ u8 sof, eof;
+ u32 crc;
+ unsigned int hlen, tlen, elen;
+ int wlen, rc = 0;
+
+ port = (struct fcoe_port *)lport_priv(lport);
+ interface = port->priv;
+ ctlr = bnx2fc_to_ctlr(interface);
+ hba = interface->hba;
+
+ fh = fc_frame_header_get(fp);
+
+ skb = fp_skb(fp);
+ if (!lport->link_up) {
+ BNX2FC_HBA_DBG(lport, "bnx2fc_xmit link down\n");
+ kfree_skb(skb);
+ return 0;
+ }
+
+ if (unlikely(fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
+ if (!ctlr->sel_fcf) {
+ BNX2FC_HBA_DBG(lport, "FCF not selected yet!\n");
+ kfree_skb(skb);
+ return -EINVAL;
+ }
+ if (fcoe_ctlr_els_send(ctlr, lport, skb))
+ return 0;
+ }
+
+ sof = fr_sof(fp);
+ eof = fr_eof(fp);
+
+ /*
+ * Snoop the frame header to check if the frame is for
+ * an offloaded session
+ */
+ /*
+ * tgt_ofld_list access is synchronized using
+ * both hba mutex and hba lock. Atleast hba mutex or
+ * hba lock needs to be held for read access.
+ */
+
+ spin_lock_bh(&hba->hba_lock);
+ tgt = bnx2fc_tgt_lookup(port, ntoh24(fh->fh_d_id));
+ if (tgt && (test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags))) {
+ /* This frame is for offloaded session */
+ BNX2FC_HBA_DBG(lport, "xmit: Frame is for offloaded session "
+ "port_id = 0x%x\n", ntoh24(fh->fh_d_id));
+ spin_unlock_bh(&hba->hba_lock);
+ rc = bnx2fc_xmit_l2_frame(tgt, fp);
+ if (rc != -ENODEV) {
+ kfree_skb(skb);
+ return rc;
+ }
+ } else {
+ spin_unlock_bh(&hba->hba_lock);
+ }
+
+ elen = sizeof(struct ethhdr);
+ hlen = sizeof(struct fcoe_hdr);
+ tlen = sizeof(struct fcoe_crc_eof);
+ wlen = (skb->len - tlen + sizeof(crc)) / FCOE_WORD_TO_BYTE;
+
+ skb->ip_summed = CHECKSUM_NONE;
+ crc = fcoe_fc_crc(fp);
+
+ /* copy port crc and eof to the skb buff */
+ if (skb_is_nonlinear(skb)) {
+ skb_frag_t *frag;
+ if (bnx2fc_get_paged_crc_eof(skb, tlen)) {
+ kfree_skb(skb);
+ return -ENOMEM;
+ }
+ frag = &skb_shinfo(skb)->frags[skb_shinfo(skb)->nr_frags - 1];
+ cp = kmap_atomic(skb_frag_page(frag)) + frag->page_offset;
+ } else {
+ cp = (struct fcoe_crc_eof *)skb_put(skb, tlen);
+ }
+
+ memset(cp, 0, sizeof(*cp));
+ cp->fcoe_eof = eof;
+ cp->fcoe_crc32 = cpu_to_le32(~crc);
+ if (skb_is_nonlinear(skb)) {
+ kunmap_atomic(cp);
+ cp = NULL;
+ }
+
+ /* adjust skb network/transport offsets to match mac/fcoe/port */
+ skb_push(skb, elen + hlen);
+ skb_reset_mac_header(skb);
+ skb_reset_network_header(skb);
+ skb->mac_len = elen;
+ skb->protocol = htons(ETH_P_FCOE);
+ skb->dev = interface->netdev;
+
+ /* fill up mac and fcoe headers */
+ eh = eth_hdr(skb);
+ eh->h_proto = htons(ETH_P_FCOE);
+ if (ctlr->map_dest)
+ fc_fcoe_set_mac(eh->h_dest, fh->fh_d_id);
+ else
+ /* insert GW address */
+ memcpy(eh->h_dest, ctlr->dest_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);
+
+ hp = (struct fcoe_hdr *)(eh + 1);
+ memset(hp, 0, sizeof(*hp));
+ if (FC_FCOE_VER)
+ FC_FCOE_ENCAPS_VER(hp, FC_FCOE_VER);
+ hp->fcoe_sof = sof;
+
+ /* fcoe lso, mss is in max_payload which is non-zero for FCP data */
+ if (lport->seq_offload && fr_max_payload(fp)) {
+ skb_shinfo(skb)->gso_type = SKB_GSO_FCOE;
+ skb_shinfo(skb)->gso_size = fr_max_payload(fp);
+ } else {
+ skb_shinfo(skb)->gso_type = 0;
+ skb_shinfo(skb)->gso_size = 0;
+ }
+
+ /*update tx stats */
+ stats = per_cpu_ptr(lport->stats, get_cpu());
+ stats->TxFrames++;
+ stats->TxWords += wlen;
+ put_cpu();
+
+ /* send down to lld */
+ fr_dev(fp) = lport;
+ if (port->fcoe_pending_queue.qlen)
+ fcoe_check_wait_queue(lport, skb);
+ else if (fcoe_start_io(skb))
+ fcoe_check_wait_queue(lport, skb);
+
+ return 0;
+}
+
+/**
+ * bnx2fc_rcv - This is bnx2fc's receive function called by NET_RX_SOFTIRQ
+ *
+ * @skb: the receive socket buffer
+ * @dev: associated net device
+ * @ptype: context
+ * @olddev: last device
+ *
+ * This function receives the packet and builds FC frame and passes it up
+ */
+static int bnx2fc_rcv(struct sk_buff *skb, struct net_device *dev,
+ struct packet_type *ptype, struct net_device *olddev)
+{
+ struct fc_lport *lport;
+ struct bnx2fc_interface *interface;
+ struct fcoe_ctlr *ctlr;
+ struct fc_frame_header *fh;
+ struct fcoe_rcv_info *fr;
+ struct fcoe_percpu_s *bg;
+ struct sk_buff *tmp_skb;
+ unsigned short oxid;
+
+ interface = container_of(ptype, struct bnx2fc_interface,
+ fcoe_packet_type);
+ ctlr = bnx2fc_to_ctlr(interface);
+ lport = ctlr->lp;
+
+ if (unlikely(lport == NULL)) {
+ printk(KERN_ERR PFX "bnx2fc_rcv: lport is NULL\n");
+ goto err;
+ }
+
+ tmp_skb = skb_share_check(skb, GFP_ATOMIC);
+ if (!tmp_skb)
+ goto err;
+
+ skb = tmp_skb;
+
+ if (unlikely(eth_hdr(skb)->h_proto != htons(ETH_P_FCOE))) {
+ printk(KERN_ERR PFX "bnx2fc_rcv: Wrong FC type frame\n");
+ goto err;
+ }
+
+ /*
+ * Check for minimum frame length, and make sure required FCoE
+ * and FC headers are pulled into the linear data area.
+ */
+ if (unlikely((skb->len < FCOE_MIN_FRAME) ||
+ !pskb_may_pull(skb, FCOE_HEADER_LEN)))
+ goto err;
+
+ skb_set_transport_header(skb, sizeof(struct fcoe_hdr));
+ fh = (struct fc_frame_header *) skb_transport_header(skb);
+
+ oxid = ntohs(fh->fh_ox_id);
+
+ fr = fcoe_dev_from_skb(skb);
+ fr->fr_dev = lport;
+
+ bg = &bnx2fc_global;
+ spin_lock(&bg->fcoe_rx_list.lock);
+
+ __skb_queue_tail(&bg->fcoe_rx_list, skb);
+ if (bg->fcoe_rx_list.qlen == 1)
+ wake_up_process(bg->thread);
+
+ spin_unlock(&bg->fcoe_rx_list.lock);
+
+ return 0;
+err:
+ kfree_skb(skb);
+ return -1;
+}
+
+static int bnx2fc_l2_rcv_thread(void *arg)
+{
+ struct fcoe_percpu_s *bg = arg;
+ struct sk_buff *skb;
+
+ set_user_nice(current, MIN_NICE);
+ set_current_state(TASK_INTERRUPTIBLE);
+ while (!kthread_should_stop()) {
+ schedule();
+ spin_lock_bh(&bg->fcoe_rx_list.lock);
+ while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL) {
+ spin_unlock_bh(&bg->fcoe_rx_list.lock);
+ bnx2fc_recv_frame(skb);
+ spin_lock_bh(&bg->fcoe_rx_list.lock);
+ }
+ __set_current_state(TASK_INTERRUPTIBLE);
+ spin_unlock_bh(&bg->fcoe_rx_list.lock);
+ }
+ __set_current_state(TASK_RUNNING);
+ return 0;
+}
+
+
+static void bnx2fc_recv_frame(struct sk_buff *skb)
+{
+ u32 fr_len;
+ struct fc_lport *lport;
+ struct fcoe_rcv_info *fr;
+ struct fc_stats *stats;
+ struct fc_frame_header *fh;
+ struct fcoe_crc_eof crc_eof;
+ struct fc_frame *fp;
+ struct fc_lport *vn_port;
+ struct fcoe_port *port;
+ u8 *mac = NULL;
+ u8 *dest_mac = NULL;
+ struct fcoe_hdr *hp;
+
+ fr = fcoe_dev_from_skb(skb);
+ lport = fr->fr_dev;
+ if (unlikely(lport == NULL)) {
+ printk(KERN_ERR PFX "Invalid lport struct\n");
+ kfree_skb(skb);
+ return;
+ }
+
+ if (skb_is_nonlinear(skb))
+ skb_linearize(skb);
+ mac = eth_hdr(skb)->h_source;
+ dest_mac = eth_hdr(skb)->h_dest;
+
+ /* Pull the header */
+ hp = (struct fcoe_hdr *) skb_network_header(skb);
+ fh = (struct fc_frame_header *) skb_transport_header(skb);
+ skb_pull(skb, sizeof(struct fcoe_hdr));
+ fr_len = skb->len - sizeof(struct fcoe_crc_eof);
+
+ fp = (struct fc_frame *)skb;
+ fc_frame_init(fp);
+ fr_dev(fp) = lport;
+ fr_sof(fp) = hp->fcoe_sof;
+ if (skb_copy_bits(skb, fr_len, &crc_eof, sizeof(crc_eof))) {
+ kfree_skb(skb);
+ return;
+ }
+ fr_eof(fp) = crc_eof.fcoe_eof;
+ fr_crc(fp) = crc_eof.fcoe_crc32;
+ if (pskb_trim(skb, fr_len)) {
+ kfree_skb(skb);
+ return;
+ }
+
+ fh = fc_frame_header_get(fp);
+
+ vn_port = fc_vport_id_lookup(lport, ntoh24(fh->fh_d_id));
+ if (vn_port) {
+ port = lport_priv(vn_port);
+ if (!ether_addr_equal(port->data_src_addr, dest_mac)) {
+ BNX2FC_HBA_DBG(lport, "fpma mismatch\n");
+ kfree_skb(skb);
+ return;
+ }
+ }
+ if (fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA &&
+ fh->fh_type == FC_TYPE_FCP) {
+ /* Drop FCP data. We dont this in L2 path */
+ kfree_skb(skb);
+ return;
+ }
+ if (fh->fh_r_ctl == FC_RCTL_ELS_REQ &&
+ fh->fh_type == FC_TYPE_ELS) {
+ switch (fc_frame_payload_op(fp)) {
+ case ELS_LOGO:
+ if (ntoh24(fh->fh_s_id) == FC_FID_FLOGI) {
+ /* drop non-FIP LOGO */
+ kfree_skb(skb);
+ return;
+ }
+ break;
+ }
+ }
+
+ if (fh->fh_r_ctl == FC_RCTL_BA_ABTS) {
+ /* Drop incoming ABTS */
+ kfree_skb(skb);
+ return;
+ }
+
+ stats = per_cpu_ptr(lport->stats, smp_processor_id());
+ stats->RxFrames++;
+ stats->RxWords += fr_len / FCOE_WORD_TO_BYTE;
+
+ if (le32_to_cpu(fr_crc(fp)) !=
+ ~crc32(~0, skb->data, fr_len)) {
+ if (stats->InvalidCRCCount < 5)
+ printk(KERN_WARNING PFX "dropping frame with "
+ "CRC error\n");
+ stats->InvalidCRCCount++;
+ kfree_skb(skb);
+ return;
+ }
+ fc_exch_recv(lport, fp);
+}
+
+/**
+ * bnx2fc_percpu_io_thread - thread per cpu for ios
+ *
+ * @arg: ptr to bnx2fc_percpu_info structure
+ */
+int bnx2fc_percpu_io_thread(void *arg)
+{
+ struct bnx2fc_percpu_s *p = arg;
+ struct bnx2fc_work *work, *tmp;
+ LIST_HEAD(work_list);
+
+ set_user_nice(current, MIN_NICE);
+ set_current_state(TASK_INTERRUPTIBLE);
+ while (!kthread_should_stop()) {
+ schedule();
+ spin_lock_bh(&p->fp_work_lock);
+ while (!list_empty(&p->work_list)) {
+ list_splice_init(&p->work_list, &work_list);
+ spin_unlock_bh(&p->fp_work_lock);
+
+ list_for_each_entry_safe(work, tmp, &work_list, list) {
+ list_del_init(&work->list);
+ bnx2fc_process_cq_compl(work->tgt, work->wqe);
+ kfree(work);
+ }
+
+ spin_lock_bh(&p->fp_work_lock);
+ }
+ __set_current_state(TASK_INTERRUPTIBLE);
+ spin_unlock_bh(&p->fp_work_lock);
+ }
+ __set_current_state(TASK_RUNNING);
+
+ return 0;
+}
+
+static struct fc_host_statistics *bnx2fc_get_host_stats(struct Scsi_Host *shost)
+{
+ struct fc_host_statistics *bnx2fc_stats;
+ struct fc_lport *lport = shost_priv(shost);
+ struct fcoe_port *port = lport_priv(lport);
+ struct bnx2fc_interface *interface = port->priv;
+ struct bnx2fc_hba *hba = interface->hba;
+ struct fcoe_statistics_params *fw_stats;
+ int rc = 0;
+
+ fw_stats = (struct fcoe_statistics_params *)hba->stats_buffer;
+ if (!fw_stats)
+ return NULL;
+
+ bnx2fc_stats = fc_get_host_stats(shost);
+
+ init_completion(&hba->stat_req_done);
+ if (bnx2fc_send_stat_req(hba))
+ return bnx2fc_stats;
+ rc = wait_for_completion_timeout(&hba->stat_req_done, (2 * HZ));
+ if (!rc) {
+ BNX2FC_HBA_DBG(lport, "FW stat req timed out\n");
+ return bnx2fc_stats;
+ }
+ BNX2FC_STATS(hba, rx_stat2, fc_crc_cnt);
+ bnx2fc_stats->invalid_crc_count += hba->bfw_stats.fc_crc_cnt;
+ BNX2FC_STATS(hba, tx_stat, fcoe_tx_pkt_cnt);
+ bnx2fc_stats->tx_frames += hba->bfw_stats.fcoe_tx_pkt_cnt;
+ BNX2FC_STATS(hba, tx_stat, fcoe_tx_byte_cnt);
+ bnx2fc_stats->tx_words += ((hba->bfw_stats.fcoe_tx_byte_cnt) / 4);
+ BNX2FC_STATS(hba, rx_stat0, fcoe_rx_pkt_cnt);
+ bnx2fc_stats->rx_frames += hba->bfw_stats.fcoe_rx_pkt_cnt;
+ BNX2FC_STATS(hba, rx_stat0, fcoe_rx_byte_cnt);
+ bnx2fc_stats->rx_words += ((hba->bfw_stats.fcoe_rx_byte_cnt) / 4);
+
+ bnx2fc_stats->dumped_frames = 0;
+ bnx2fc_stats->lip_count = 0;
+ bnx2fc_stats->nos_count = 0;
+ bnx2fc_stats->loss_of_sync_count = 0;
+ bnx2fc_stats->loss_of_signal_count = 0;
+ bnx2fc_stats->prim_seq_protocol_err_count = 0;
+
+ memcpy(&hba->prev_stats, hba->stats_buffer,
+ sizeof(struct fcoe_statistics_params));
+ return bnx2fc_stats;
+}
+
+static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev)
+{
+ struct fcoe_port *port = lport_priv(lport);
+ struct bnx2fc_interface *interface = port->priv;
+ struct bnx2fc_hba *hba = interface->hba;
+ struct Scsi_Host *shost = lport->host;
+ int rc = 0;
+
+ shost->max_cmd_len = BNX2FC_MAX_CMD_LEN;
+ shost->max_lun = BNX2FC_MAX_LUN;
+ shost->max_id = BNX2FC_MAX_FCP_TGT;
+ shost->max_channel = 0;
+ if (lport->vport)
+ shost->transportt = bnx2fc_vport_xport_template;
+ else
+ shost->transportt = bnx2fc_transport_template;
+
+ /* Add the new host to SCSI-ml */
+ rc = scsi_add_host(lport->host, dev);
+ if (rc) {
+ printk(KERN_ERR PFX "Error on scsi_add_host\n");
+ return rc;
+ }
+ if (!lport->vport)
+ fc_host_max_npiv_vports(lport->host) = USHRT_MAX;
+ snprintf(fc_host_symbolic_name(lport->host), 256,
+ "%s (QLogic %s) v%s over %s",
+ BNX2FC_NAME, hba->chip_num, BNX2FC_VERSION,
+ interface->netdev->name);
+
+ return 0;
+}
+
+static int bnx2fc_link_ok(struct fc_lport *lport)
+{
+ struct fcoe_port *port = lport_priv(lport);
+ struct bnx2fc_interface *interface = port->priv;
+ struct bnx2fc_hba *hba = interface->hba;
+ struct net_device *dev = hba->phys_dev;
+ int rc = 0;
+
+ if ((dev->flags & IFF_UP) && netif_carrier_ok(dev))
+ clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
+ else {
+ set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
+ rc = -1;
+ }
+ return rc;
+}
+
+/**
+ * bnx2fc_get_link_state - get network link state
+ *
+ * @hba: adapter instance pointer
+ *
+ * updates adapter structure flag based on netdev state
+ */
+void bnx2fc_get_link_state(struct bnx2fc_hba *hba)
+{
+ if (test_bit(__LINK_STATE_NOCARRIER, &hba->phys_dev->state))
+ set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
+ else
+ clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
+}
+
+static int bnx2fc_net_config(struct fc_lport *lport, struct net_device *netdev)
+{
+ struct bnx2fc_hba *hba;
+ struct bnx2fc_interface *interface;
+ struct fcoe_ctlr *ctlr;
+ struct fcoe_port *port;
+ u64 wwnn, wwpn;
+
+ port = lport_priv(lport);
+ interface = port->priv;
+ ctlr = bnx2fc_to_ctlr(interface);
+ hba = interface->hba;
+
+ /* require support for get_pauseparam ethtool op. */
+ if (!hba->phys_dev->ethtool_ops ||
+ !hba->phys_dev->ethtool_ops->get_pauseparam)
+ return -EOPNOTSUPP;
+
+ if (fc_set_mfs(lport, BNX2FC_MFS))
+ return -EINVAL;
+
+ skb_queue_head_init(&port->fcoe_pending_queue);
+ port->fcoe_pending_queue_active = 0;
+ setup_timer(&port->timer, fcoe_queue_timer, (unsigned long) lport);
+
+ fcoe_link_speed_update(lport);
+
+ if (!lport->vport) {
+ if (fcoe_get_wwn(netdev, &wwnn, NETDEV_FCOE_WWNN))
+ wwnn = fcoe_wwn_from_mac(ctlr->ctl_src_addr,
+ 1, 0);
+ BNX2FC_HBA_DBG(lport, "WWNN = 0x%llx\n", wwnn);
+ fc_set_wwnn(lport, wwnn);
+
+ if (fcoe_get_wwn(netdev, &wwpn, NETDEV_FCOE_WWPN))
+ wwpn = fcoe_wwn_from_mac(ctlr->ctl_src_addr,
+ 2, 0);
+
+ BNX2FC_HBA_DBG(lport, "WWPN = 0x%llx\n", wwpn);
+ fc_set_wwpn(lport, wwpn);
+ }
+
+ return 0;
+}
+
+static void bnx2fc_destroy_timer(unsigned long data)
+{
+ struct bnx2fc_hba *hba = (struct bnx2fc_hba *)data;
+
+ printk(KERN_ERR PFX "ERROR:bnx2fc_destroy_timer - "
+ "Destroy compl not received!!\n");
+ set_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags);
+ wake_up_interruptible(&hba->destroy_wait);
+}
+
+/**
+ * bnx2fc_indicate_netevent - Generic netdev event handler
+ *
+ * @context: adapter structure pointer
+ * @event: event type
+ * @vlan_id: vlan id - associated vlan id with this event
+ *
+ * Handles NETDEV_UP, NETDEV_DOWN, NETDEV_GOING_DOWN,NETDEV_CHANGE and
+ * NETDEV_CHANGE_MTU events. Handle NETDEV_UNREGISTER only for vlans.
+ */
+static void bnx2fc_indicate_netevent(void *context, unsigned long event,
+ u16 vlan_id)
+{
+ struct bnx2fc_hba *hba = (struct bnx2fc_hba *)context;
+ struct fcoe_ctlr_device *cdev;
+ struct fc_lport *lport;
+ struct fc_lport *vport;
+ struct bnx2fc_interface *interface, *tmp;
+ struct fcoe_ctlr *ctlr;
+ int wait_for_upload = 0;
+ u32 link_possible = 1;
+
+ if (vlan_id != 0 && event != NETDEV_UNREGISTER)
+ return;
+
+ switch (event) {
+ case NETDEV_UP:
+ if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state))
+ printk(KERN_ERR "indicate_netevent: "\
+ "hba is not UP!!\n");
+ break;
+
+ case NETDEV_DOWN:
+ clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
+ clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
+ link_possible = 0;
+ break;
+
+ case NETDEV_GOING_DOWN:
+ set_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
+ link_possible = 0;
+ break;
+
+ case NETDEV_CHANGE:
+ break;
+
+ case NETDEV_UNREGISTER:
+ if (!vlan_id)
+ return;
+ mutex_lock(&bnx2fc_dev_lock);
+ list_for_each_entry_safe(interface, tmp, &if_list, list) {
+ if (interface->hba == hba &&
+ interface->vlan_id == (vlan_id & VLAN_VID_MASK))
+ __bnx2fc_destroy(interface);
+ }
+ mutex_unlock(&bnx2fc_dev_lock);
+
+ /* Ensure ALL destroy work has been completed before return */
+ flush_workqueue(bnx2fc_wq);
+ return;
+
+ default:
+ printk(KERN_ERR PFX "Unknown netevent %ld", event);
+ return;
+ }
+
+ mutex_lock(&bnx2fc_dev_lock);
+ list_for_each_entry(interface, &if_list, list) {
+
+ if (interface->hba != hba)
+ continue;
+
+ ctlr = bnx2fc_to_ctlr(interface);
+ lport = ctlr->lp;
+ BNX2FC_HBA_DBG(lport, "netevent handler - event=%s %ld\n",
+ interface->netdev->name, event);
+
+ fcoe_link_speed_update(lport);
+
+ cdev = fcoe_ctlr_to_ctlr_dev(ctlr);
+
+ if (link_possible && !bnx2fc_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:
+ /* Reset max recv frame size to default */
+ fc_set_mfs(lport, BNX2FC_MFS);
+ /*
+ * ctlr link up will only be handled during
+ * enable to avoid sending discovery
+ * solicitation on a stale vlan
+ */
+ if (interface->enabled)
+ 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:
+ mutex_lock(&lport->lp_mutex);
+ list_for_each_entry(vport, &lport->vports, list)
+ fc_host_port_type(vport->host) =
+ FC_PORTTYPE_UNKNOWN;
+ mutex_unlock(&lport->lp_mutex);
+ fc_host_port_type(lport->host) =
+ FC_PORTTYPE_UNKNOWN;
+ per_cpu_ptr(lport->stats,
+ get_cpu())->LinkFailureCount++;
+ put_cpu();
+ fcoe_clean_pending_queue(lport);
+ wait_for_upload = 1;
+ };
+ }
+ }
+ mutex_unlock(&bnx2fc_dev_lock);
+
+ if (wait_for_upload) {
+ clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
+ init_waitqueue_head(&hba->shutdown_wait);
+ BNX2FC_MISC_DBG("indicate_netevent "
+ "num_ofld_sess = %d\n",
+ hba->num_ofld_sess);
+ hba->wait_for_link_down = 1;
+ wait_event_interruptible(hba->shutdown_wait,
+ (hba->num_ofld_sess == 0));
+ BNX2FC_MISC_DBG("wakeup - num_ofld_sess = %d\n",
+ hba->num_ofld_sess);
+ hba->wait_for_link_down = 0;
+
+ if (signal_pending(current))
+ flush_signals(current);
+ }
+}
+
+static int bnx2fc_libfc_config(struct fc_lport *lport)
+{
+
+ /* Set the function pointers set by bnx2fc driver */
+ memcpy(&lport->tt, &bnx2fc_libfc_fcn_templ,
+ sizeof(struct libfc_function_template));
+ fc_elsct_init(lport);
+ fc_exch_init(lport);
+ fc_rport_init(lport);
+ fc_disc_init(lport);
+ fc_disc_config(lport, lport);
+ return 0;
+}
+
+static int bnx2fc_em_config(struct fc_lport *lport, struct bnx2fc_hba *hba)
+{
+ int fcoe_min_xid, fcoe_max_xid;
+
+ fcoe_min_xid = hba->max_xid + 1;
+ if (nr_cpu_ids <= 2)
+ fcoe_max_xid = hba->max_xid + FCOE_XIDS_PER_CPU_OFFSET;
+ else
+ fcoe_max_xid = hba->max_xid + FCOE_MAX_XID_OFFSET;
+ if (!fc_exch_mgr_alloc(lport, FC_CLASS_3, fcoe_min_xid,
+ fcoe_max_xid, NULL)) {
+ printk(KERN_ERR PFX "em_config:fc_exch_mgr_alloc failed\n");
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+static int bnx2fc_lport_config(struct fc_lport *lport)
+{
+ lport->link_up = 0;
+ lport->qfull = 0;
+ lport->max_retry_count = BNX2FC_MAX_RETRY_CNT;
+ lport->max_rport_retry_count = BNX2FC_MAX_RPORT_RETRY_CNT;
+ lport->e_d_tov = 2 * 1000;
+ lport->r_a_tov = 10 * 1000;
+
+ lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
+ FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
+ lport->does_npiv = 1;
+
+ memset(&lport->rnid_gen, 0, sizeof(struct fc_els_rnid_gen));
+ lport->rnid_gen.rnid_atype = BNX2FC_RNID_HBA;
+
+ /* alloc stats structure */
+ if (fc_lport_init_stats(lport))
+ return -ENOMEM;
+
+ /* Finish fc_lport configuration */
+ fc_lport_config(lport);
+
+ return 0;
+}
+
+/**
+ * bnx2fc_fip_recv - handle a received FIP frame.
+ *
+ * @skb: the received skb
+ * @dev: associated &net_device
+ * @ptype: the &packet_type structure which was used to register this handler.
+ * @orig_dev: original receive &net_device, in case @ dev is a bond.
+ *
+ * Returns: 0 for success
+ */
+static int bnx2fc_fip_recv(struct sk_buff *skb, struct net_device *dev,
+ struct packet_type *ptype,
+ struct net_device *orig_dev)
+{
+ struct bnx2fc_interface *interface;
+ struct fcoe_ctlr *ctlr;
+ interface = container_of(ptype, struct bnx2fc_interface,
+ fip_packet_type);
+ ctlr = bnx2fc_to_ctlr(interface);
+ fcoe_ctlr_recv(ctlr, skb);
+ return 0;
+}
+
+/**
+ * bnx2fc_update_src_mac - Update Ethernet MAC filters.
+ *
+ * @fip: FCoE controller.
+ * @old: Unicast MAC address to delete if the MAC is non-zero.
+ * @new: Unicast MAC address to add.
+ *
+ * Remove any previously-set unicast MAC filter.
+ * Add secondary FCoE MAC address filter for our OUI.
+ */
+static void bnx2fc_update_src_mac(struct fc_lport *lport, u8 *addr)
+{
+ struct fcoe_port *port = lport_priv(lport);
+
+ memcpy(port->data_src_addr, addr, ETH_ALEN);
+}
+
+/**
+ * bnx2fc_get_src_mac - return the ethernet source address for an lport
+ *
+ * @lport: libfc port
+ */
+static u8 *bnx2fc_get_src_mac(struct fc_lport *lport)
+{
+ struct fcoe_port *port;
+
+ port = (struct fcoe_port *)lport_priv(lport);
+ return port->data_src_addr;
+}
+
+/**
+ * bnx2fc_fip_send - send an Ethernet-encapsulated FIP frame.
+ *
+ * @fip: FCoE controller.
+ * @skb: FIP Packet.
+ */
+static void bnx2fc_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb)
+{
+ skb->dev = bnx2fc_from_ctlr(fip)->netdev;
+ dev_queue_xmit(skb);
+}
+
+static int bnx2fc_vport_create(struct fc_vport *vport, bool disabled)
+{
+ struct Scsi_Host *shost = vport_to_shost(vport);
+ struct fc_lport *n_port = shost_priv(shost);
+ struct fcoe_port *port = lport_priv(n_port);
+ struct bnx2fc_interface *interface = port->priv;
+ struct net_device *netdev = interface->netdev;
+ struct fc_lport *vn_port;
+ int rc;
+ char buf[32];
+
+ rc = fcoe_validate_vport_create(vport);
+ if (rc) {
+ fcoe_wwn_to_str(vport->port_name, buf, sizeof(buf));
+ printk(KERN_ERR PFX "Failed to create vport, "
+ "WWPN (0x%s) already exists\n",
+ buf);
+ return rc;
+ }
+
+ if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) {
+ printk(KERN_ERR PFX "vn ports cannot be created on"
+ "this interface\n");
+ return -EIO;
+ }
+ rtnl_lock();
+ mutex_lock(&bnx2fc_dev_lock);
+ vn_port = bnx2fc_if_create(interface, &vport->dev, 1);
+ mutex_unlock(&bnx2fc_dev_lock);
+ rtnl_unlock();
+
+ if (!vn_port) {
+ printk(KERN_ERR PFX "bnx2fc_vport_create (%s) failed\n",
+ netdev->name);
+ return -EIO;
+ }
+
+ if (disabled) {
+ fc_vport_set_state(vport, FC_VPORT_DISABLED);
+ } else {
+ vn_port->boot_time = jiffies;
+ fc_lport_init(vn_port);
+ fc_fabric_login(vn_port);
+ fc_vport_setlink(vn_port);
+ }
+ return 0;
+}
+
+static void bnx2fc_free_vport(struct bnx2fc_hba *hba, struct fc_lport *lport)
+{
+ struct bnx2fc_lport *blport, *tmp;
+
+ spin_lock_bh(&hba->hba_lock);
+ list_for_each_entry_safe(blport, tmp, &hba->vports, list) {
+ if (blport->lport == lport) {
+ list_del(&blport->list);
+ kfree(blport);
+ }
+ }
+ spin_unlock_bh(&hba->hba_lock);
+}
+
+static int bnx2fc_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);
+ struct bnx2fc_interface *interface = port->priv;
+ struct fc_lport *v_port;
+ bool found = false;
+
+ mutex_lock(&n_port->lp_mutex);
+ list_for_each_entry(v_port, &n_port->vports, list)
+ if (v_port->vport == vport) {
+ found = true;
+ break;
+ }
+
+ if (!found) {
+ mutex_unlock(&n_port->lp_mutex);
+ return -ENOENT;
+ }
+ list_del(&vn_port->list);
+ mutex_unlock(&n_port->lp_mutex);
+ bnx2fc_free_vport(interface->hba, port->lport);
+ bnx2fc_port_shutdown(port->lport);
+ bnx2fc_interface_put(interface);
+ queue_work(bnx2fc_wq, &port->destroy_work);
+ return 0;
+}
+
+static int bnx2fc_vport_disable(struct fc_vport *vport, bool disable)
+{
+ struct fc_lport *lport = vport->dd_data;
+
+ if (disable) {
+ fc_vport_set_state(vport, FC_VPORT_DISABLED);
+ fc_fabric_logoff(lport);
+ } else {
+ lport->boot_time = jiffies;
+ fc_fabric_login(lport);
+ fc_vport_setlink(lport);
+ }
+ return 0;
+}
+
+
+static int bnx2fc_interface_setup(struct bnx2fc_interface *interface)
+{
+ struct net_device *netdev = interface->netdev;
+ struct net_device *physdev = interface->hba->phys_dev;
+ struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
+ struct netdev_hw_addr *ha;
+ int sel_san_mac = 0;
+
+ /* setup Source MAC Address */
+ rcu_read_lock();
+ for_each_dev_addr(physdev, ha) {
+ BNX2FC_MISC_DBG("net_config: ha->type = %d, fip_mac = ",
+ ha->type);
+ printk(KERN_INFO "%2x:%2x:%2x:%2x:%2x:%2x\n", ha->addr[0],
+ ha->addr[1], ha->addr[2], ha->addr[3],
+ ha->addr[4], ha->addr[5]);
+
+ if ((ha->type == NETDEV_HW_ADDR_T_SAN) &&
+ (is_valid_ether_addr(ha->addr))) {
+ memcpy(ctlr->ctl_src_addr, ha->addr,
+ ETH_ALEN);
+ sel_san_mac = 1;
+ BNX2FC_MISC_DBG("Found SAN MAC\n");
+ }
+ }
+ rcu_read_unlock();
+
+ if (!sel_san_mac)
+ return -ENODEV;
+
+ interface->fip_packet_type.func = bnx2fc_fip_recv;
+ interface->fip_packet_type.type = htons(ETH_P_FIP);
+ interface->fip_packet_type.dev = netdev;
+ dev_add_pack(&interface->fip_packet_type);
+
+ interface->fcoe_packet_type.func = bnx2fc_rcv;
+ interface->fcoe_packet_type.type = __constant_htons(ETH_P_FCOE);
+ interface->fcoe_packet_type.dev = netdev;
+ dev_add_pack(&interface->fcoe_packet_type);
+
+ return 0;
+}
+
+static int bnx2fc_attach_transport(void)
+{
+ bnx2fc_transport_template =
+ fc_attach_transport(&bnx2fc_transport_function);
+
+ if (bnx2fc_transport_template == NULL) {
+ printk(KERN_ERR PFX "Failed to attach FC transport\n");
+ return -ENODEV;
+ }
+
+ bnx2fc_vport_xport_template =
+ fc_attach_transport(&bnx2fc_vport_xport_function);
+ if (bnx2fc_vport_xport_template == NULL) {
+ printk(KERN_ERR PFX
+ "Failed to attach FC transport for vport\n");
+ fc_release_transport(bnx2fc_transport_template);
+ bnx2fc_transport_template = NULL;
+ return -ENODEV;
+ }
+ return 0;
+}
+static void bnx2fc_release_transport(void)
+{
+ fc_release_transport(bnx2fc_transport_template);
+ fc_release_transport(bnx2fc_vport_xport_template);
+ bnx2fc_transport_template = NULL;
+ bnx2fc_vport_xport_template = NULL;
+}
+
+static void bnx2fc_interface_release(struct kref *kref)
+{
+ struct fcoe_ctlr_device *ctlr_dev;
+ struct bnx2fc_interface *interface;
+ struct fcoe_ctlr *ctlr;
+ struct net_device *netdev;
+
+ interface = container_of(kref, struct bnx2fc_interface, kref);
+ BNX2FC_MISC_DBG("Interface is being released\n");
+
+ ctlr = bnx2fc_to_ctlr(interface);
+ ctlr_dev = fcoe_ctlr_to_ctlr_dev(ctlr);
+ netdev = interface->netdev;
+
+ /* tear-down FIP controller */
+ if (test_and_clear_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags))
+ fcoe_ctlr_destroy(ctlr);
+
+ fcoe_ctlr_device_delete(ctlr_dev);
+
+ dev_put(netdev);
+ module_put(THIS_MODULE);
+}
+
+static inline void bnx2fc_interface_get(struct bnx2fc_interface *interface)
+{
+ kref_get(&interface->kref);
+}
+
+static inline void bnx2fc_interface_put(struct bnx2fc_interface *interface)
+{
+ kref_put(&interface->kref, bnx2fc_interface_release);
+}
+static void bnx2fc_hba_destroy(struct bnx2fc_hba *hba)
+{
+ /* Free the command manager */
+ if (hba->cmd_mgr) {
+ bnx2fc_cmd_mgr_free(hba->cmd_mgr);
+ hba->cmd_mgr = NULL;
+ }
+ kfree(hba->tgt_ofld_list);
+ bnx2fc_unbind_pcidev(hba);
+ kfree(hba);
+}
+
+/**
+ * bnx2fc_hba_create - create a new bnx2fc hba
+ *
+ * @cnic: pointer to cnic device
+ *
+ * Creates a new FCoE hba on the given device.
+ *
+ */
+static struct bnx2fc_hba *bnx2fc_hba_create(struct cnic_dev *cnic)
+{
+ struct bnx2fc_hba *hba;
+ struct fcoe_capabilities *fcoe_cap;
+ int rc;
+
+ hba = kzalloc(sizeof(*hba), GFP_KERNEL);
+ if (!hba) {
+ printk(KERN_ERR PFX "Unable to allocate hba structure\n");
+ return NULL;
+ }
+ spin_lock_init(&hba->hba_lock);
+ mutex_init(&hba->hba_mutex);
+
+ hba->cnic = cnic;
+
+ hba->max_tasks = cnic->max_fcoe_exchanges;
+ hba->elstm_xids = (hba->max_tasks / 2);
+ hba->max_outstanding_cmds = hba->elstm_xids;
+ hba->max_xid = (hba->max_tasks - 1);
+
+ rc = bnx2fc_bind_pcidev(hba);
+ if (rc) {
+ printk(KERN_ERR PFX "create_adapter: bind error\n");
+ goto bind_err;
+ }
+ hba->phys_dev = cnic->netdev;
+ hba->next_conn_id = 0;
+
+ hba->tgt_ofld_list =
+ kzalloc(sizeof(struct bnx2fc_rport *) * BNX2FC_NUM_MAX_SESS,
+ GFP_KERNEL);
+ if (!hba->tgt_ofld_list) {
+ printk(KERN_ERR PFX "Unable to allocate tgt offload list\n");
+ goto tgtofld_err;
+ }
+
+ hba->num_ofld_sess = 0;
+
+ hba->cmd_mgr = bnx2fc_cmd_mgr_alloc(hba);
+ if (!hba->cmd_mgr) {
+ printk(KERN_ERR PFX "em_config:bnx2fc_cmd_mgr_alloc failed\n");
+ goto cmgr_err;
+ }
+ fcoe_cap = &hba->fcoe_cap;
+
+ fcoe_cap->capability1 = BNX2FC_TM_MAX_SQES <<
+ FCOE_IOS_PER_CONNECTION_SHIFT;
+ fcoe_cap->capability1 |= BNX2FC_NUM_MAX_SESS <<
+ FCOE_LOGINS_PER_PORT_SHIFT;
+ fcoe_cap->capability2 = hba->max_outstanding_cmds <<
+ FCOE_NUMBER_OF_EXCHANGES_SHIFT;
+ fcoe_cap->capability2 |= BNX2FC_MAX_NPIV <<
+ FCOE_NPIV_WWN_PER_PORT_SHIFT;
+ fcoe_cap->capability3 = BNX2FC_NUM_MAX_SESS <<
+ FCOE_TARGETS_SUPPORTED_SHIFT;
+ fcoe_cap->capability3 |= hba->max_outstanding_cmds <<
+ FCOE_OUTSTANDING_COMMANDS_SHIFT;
+ fcoe_cap->capability4 = FCOE_CAPABILITY4_STATEFUL;
+
+ init_waitqueue_head(&hba->shutdown_wait);
+ init_waitqueue_head(&hba->destroy_wait);
+ INIT_LIST_HEAD(&hba->vports);
+
+ return hba;
+
+cmgr_err:
+ kfree(hba->tgt_ofld_list);
+tgtofld_err:
+ bnx2fc_unbind_pcidev(hba);
+bind_err:
+ kfree(hba);
+ return NULL;
+}
+
+struct bnx2fc_interface *bnx2fc_interface_create(struct bnx2fc_hba *hba,
+ struct net_device *netdev,
+ enum fip_state fip_mode)
+{
+ struct fcoe_ctlr_device *ctlr_dev;
+ struct bnx2fc_interface *interface;
+ struct fcoe_ctlr *ctlr;
+ int size;
+ int rc = 0;
+
+ size = (sizeof(*interface) + sizeof(struct fcoe_ctlr));
+ ctlr_dev = fcoe_ctlr_device_add(&netdev->dev, &bnx2fc_fcoe_sysfs_templ,
+ size);
+ if (!ctlr_dev) {
+ printk(KERN_ERR PFX "Unable to allocate interface structure\n");
+ return NULL;
+ }
+ ctlr = fcoe_ctlr_device_priv(ctlr_dev);
+ ctlr->cdev = ctlr_dev;
+ interface = fcoe_ctlr_priv(ctlr);
+ dev_hold(netdev);
+ kref_init(&interface->kref);
+ interface->hba = hba;
+ interface->netdev = netdev;
+
+ /* Initialize FIP */
+ fcoe_ctlr_init(ctlr, fip_mode);
+ ctlr->send = bnx2fc_fip_send;
+ ctlr->update_mac = bnx2fc_update_src_mac;
+ ctlr->get_src_addr = bnx2fc_get_src_mac;
+ set_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags);
+
+ rc = bnx2fc_interface_setup(interface);
+ if (!rc)
+ return interface;
+
+ fcoe_ctlr_destroy(ctlr);
+ dev_put(netdev);
+ fcoe_ctlr_device_delete(ctlr_dev);
+ return NULL;
+}
+
+/**
+ * bnx2fc_if_create - Create FCoE instance on a given interface
+ *
+ * @interface: FCoE interface to create a local port on
+ * @parent: Device pointer to be the parent in sysfs for the SCSI host
+ * @npiv: Indicates if the port is vport or not
+ *
+ * Creates a fc_lport instance and a Scsi_Host instance and configure them.
+ *
+ * Returns: Allocated fc_lport or an error pointer
+ */
+static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface,
+ struct device *parent, int npiv)
+{
+ struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
+ struct fc_lport *lport, *n_port;
+ struct fcoe_port *port;
+ struct Scsi_Host *shost;
+ struct fc_vport *vport = dev_to_vport(parent);
+ struct bnx2fc_lport *blport;
+ struct bnx2fc_hba *hba = interface->hba;
+ int rc = 0;
+
+ blport = kzalloc(sizeof(struct bnx2fc_lport), GFP_KERNEL);
+ if (!blport) {
+ BNX2FC_HBA_DBG(ctlr->lp, "Unable to alloc blport\n");
+ return NULL;
+ }
+
+ /* Allocate Scsi_Host structure */
+ bnx2fc_shost_template.can_queue = hba->max_outstanding_cmds;
+ if (!npiv)
+ lport = libfc_host_alloc(&bnx2fc_shost_template, sizeof(*port));
+ else
+ lport = libfc_vport_create(vport, sizeof(*port));
+
+ if (!lport) {
+ printk(KERN_ERR PFX "could not allocate scsi host structure\n");
+ goto free_blport;
+ }
+ shost = lport->host;
+ port = lport_priv(lport);
+ port->lport = lport;
+ port->priv = interface;
+ port->get_netdev = bnx2fc_netdev;
+ INIT_WORK(&port->destroy_work, bnx2fc_destroy_work);
+
+ /* Configure fcoe_port */
+ rc = bnx2fc_lport_config(lport);
+ if (rc)
+ goto lp_config_err;
+
+ if (npiv) {
+ printk(KERN_ERR PFX "Setting vport names, 0x%llX 0x%llX\n",
+ vport->node_name, vport->port_name);
+ fc_set_wwnn(lport, vport->node_name);
+ fc_set_wwpn(lport, vport->port_name);
+ }
+ /* Configure netdev and networking properties of the lport */
+ rc = bnx2fc_net_config(lport, interface->netdev);
+ if (rc) {
+ printk(KERN_ERR PFX "Error on bnx2fc_net_config\n");
+ goto lp_config_err;
+ }
+
+ rc = bnx2fc_shost_config(lport, parent);
+ if (rc) {
+ printk(KERN_ERR PFX "Couldnt configure shost for %s\n",
+ interface->netdev->name);
+ goto lp_config_err;
+ }
+
+ /* Initialize the libfc library */
+ rc = bnx2fc_libfc_config(lport);
+ if (rc) {
+ printk(KERN_ERR PFX "Couldnt configure libfc\n");
+ goto shost_err;
+ }
+ fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
+
+ /* Allocate exchange manager */
+ if (!npiv)
+ rc = bnx2fc_em_config(lport, hba);
+ else {
+ shost = vport_to_shost(vport);
+ n_port = shost_priv(shost);
+ rc = fc_exch_mgr_list_clone(n_port, lport);
+ }
+
+ if (rc) {
+ printk(KERN_ERR PFX "Error on bnx2fc_em_config\n");
+ goto shost_err;
+ }
+
+ bnx2fc_interface_get(interface);
+
+ spin_lock_bh(&hba->hba_lock);
+ blport->lport = lport;
+ list_add_tail(&blport->list, &hba->vports);
+ spin_unlock_bh(&hba->hba_lock);
+
+ return lport;
+
+shost_err:
+ scsi_remove_host(shost);
+lp_config_err:
+ scsi_host_put(lport->host);
+free_blport:
+ kfree(blport);
+ return NULL;
+}
+
+static void bnx2fc_net_cleanup(struct bnx2fc_interface *interface)
+{
+ /* Dont listen for Ethernet packets anymore */
+ __dev_remove_pack(&interface->fcoe_packet_type);
+ __dev_remove_pack(&interface->fip_packet_type);
+ synchronize_net();
+}
+
+static void bnx2fc_interface_cleanup(struct bnx2fc_interface *interface)
+{
+ struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
+ struct fc_lport *lport = ctlr->lp;
+ struct fcoe_port *port = lport_priv(lport);
+ struct bnx2fc_hba *hba = interface->hba;
+
+ /* Stop the transmit retry timer */
+ del_timer_sync(&port->timer);
+
+ /* Free existing transmit skbs */
+ fcoe_clean_pending_queue(lport);
+
+ bnx2fc_net_cleanup(interface);
+
+ bnx2fc_free_vport(hba, lport);
+}
+
+static void bnx2fc_if_destroy(struct fc_lport *lport)
+{
+
+ /* Free queued packets for the receive thread */
+ bnx2fc_clean_rx_queue(lport);
+
+ /* Detach from scsi-ml */
+ fc_remove_host(lport->host);
+ scsi_remove_host(lport->host);
+
+ /*
+ * Note that only the physical lport will have the exchange manager.
+ * for vports, this function is NOP
+ */
+ fc_exch_mgr_free(lport);
+
+ /* Free memory used by statistical counters */
+ fc_lport_free_stats(lport);
+
+ /* Release Scsi_Host */
+ scsi_host_put(lport->host);
+}
+
+static void __bnx2fc_destroy(struct bnx2fc_interface *interface)
+{
+ struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
+ struct fc_lport *lport = ctlr->lp;
+ struct fcoe_port *port = lport_priv(lport);
+
+ bnx2fc_interface_cleanup(interface);
+ bnx2fc_stop(interface);
+ list_del(&interface->list);
+ bnx2fc_interface_put(interface);
+ queue_work(bnx2fc_wq, &port->destroy_work);
+}
+
+/**
+ * bnx2fc_destroy - Destroy a bnx2fc FCoE interface
+ *
+ * @buffer: The name of the Ethernet interface to be destroyed
+ * @kp: The associated kernel parameter
+ *
+ * Called from sysfs.
+ *
+ * Returns: 0 for success
+ */
+static int bnx2fc_destroy(struct net_device *netdev)
+{
+ struct bnx2fc_interface *interface = NULL;
+ struct workqueue_struct *timer_work_queue;
+ struct fcoe_ctlr *ctlr;
+ int rc = 0;
+
+ rtnl_lock();
+ mutex_lock(&bnx2fc_dev_lock);
+
+ interface = bnx2fc_interface_lookup(netdev);
+ ctlr = bnx2fc_to_ctlr(interface);
+ if (!interface || !ctlr->lp) {
+ rc = -ENODEV;
+ printk(KERN_ERR PFX "bnx2fc_destroy: interface or lport not found\n");
+ goto netdev_err;
+ }
+
+ timer_work_queue = interface->timer_work_queue;
+ __bnx2fc_destroy(interface);
+ destroy_workqueue(timer_work_queue);
+
+netdev_err:
+ mutex_unlock(&bnx2fc_dev_lock);
+ rtnl_unlock();
+ return rc;
+}
+
+static void bnx2fc_destroy_work(struct work_struct *work)
+{
+ struct fcoe_port *port;
+ struct fc_lport *lport;
+
+ port = container_of(work, struct fcoe_port, destroy_work);
+ lport = port->lport;
+
+ BNX2FC_HBA_DBG(lport, "Entered bnx2fc_destroy_work\n");
+
+ bnx2fc_if_destroy(lport);
+}
+
+static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba)
+{
+ bnx2fc_free_fw_resc(hba);
+ bnx2fc_free_task_ctx(hba);
+}
+
+/**
+ * bnx2fc_bind_adapter_devices - binds bnx2fc adapter with the associated
+ * pci structure
+ *
+ * @hba: Adapter instance
+ */
+static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba)
+{
+ if (bnx2fc_setup_task_ctx(hba))
+ goto mem_err;
+
+ if (bnx2fc_setup_fw_resc(hba))
+ goto mem_err;
+
+ return 0;
+mem_err:
+ bnx2fc_unbind_adapter_devices(hba);
+ return -ENOMEM;
+}
+
+static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba)
+{
+ struct cnic_dev *cnic;
+ struct pci_dev *pdev;
+
+ if (!hba->cnic) {
+ printk(KERN_ERR PFX "cnic is NULL\n");
+ return -ENODEV;
+ }
+ cnic = hba->cnic;
+ pdev = hba->pcidev = cnic->pcidev;
+ if (!hba->pcidev)
+ return -ENODEV;
+
+ switch (pdev->device) {
+ case PCI_DEVICE_ID_NX2_57710:
+ strncpy(hba->chip_num, "BCM57710", BCM_CHIP_LEN);
+ break;
+ case PCI_DEVICE_ID_NX2_57711:
+ strncpy(hba->chip_num, "BCM57711", BCM_CHIP_LEN);
+ break;
+ case PCI_DEVICE_ID_NX2_57712:
+ case PCI_DEVICE_ID_NX2_57712_MF:
+ case PCI_DEVICE_ID_NX2_57712_VF:
+ strncpy(hba->chip_num, "BCM57712", BCM_CHIP_LEN);
+ break;
+ case PCI_DEVICE_ID_NX2_57800:
+ case PCI_DEVICE_ID_NX2_57800_MF:
+ case PCI_DEVICE_ID_NX2_57800_VF:
+ strncpy(hba->chip_num, "BCM57800", BCM_CHIP_LEN);
+ break;
+ case PCI_DEVICE_ID_NX2_57810:
+ case PCI_DEVICE_ID_NX2_57810_MF:
+ case PCI_DEVICE_ID_NX2_57810_VF:
+ strncpy(hba->chip_num, "BCM57810", BCM_CHIP_LEN);
+ break;
+ case PCI_DEVICE_ID_NX2_57840:
+ case PCI_DEVICE_ID_NX2_57840_MF:
+ case PCI_DEVICE_ID_NX2_57840_VF:
+ case PCI_DEVICE_ID_NX2_57840_2_20:
+ case PCI_DEVICE_ID_NX2_57840_4_10:
+ strncpy(hba->chip_num, "BCM57840", BCM_CHIP_LEN);
+ break;
+ default:
+ pr_err(PFX "Unknown device id 0x%x\n", pdev->device);
+ break;
+ }
+ pci_dev_get(hba->pcidev);
+ return 0;
+}
+
+static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba)
+{
+ if (hba->pcidev) {
+ hba->chip_num[0] = '\0';
+ pci_dev_put(hba->pcidev);
+ }
+ hba->pcidev = NULL;
+}
+
+/**
+ * bnx2fc_ulp_get_stats - cnic callback to populate FCoE stats
+ *
+ * @handle: transport handle pointing to adapter struture
+ */
+static int bnx2fc_ulp_get_stats(void *handle)
+{
+ struct bnx2fc_hba *hba = handle;
+ struct cnic_dev *cnic;
+ struct fcoe_stats_info *stats_addr;
+
+ if (!hba)
+ return -EINVAL;
+
+ cnic = hba->cnic;
+ stats_addr = &cnic->stats_addr->fcoe_stat;
+ if (!stats_addr)
+ return -EINVAL;
+
+ strncpy(stats_addr->version, BNX2FC_VERSION,
+ sizeof(stats_addr->version));
+ stats_addr->txq_size = BNX2FC_SQ_WQES_MAX;
+ stats_addr->rxq_size = BNX2FC_CQ_WQES_MAX;
+
+ return 0;
+}
+
+
+/**
+ * bnx2fc_ulp_start - cnic callback to initialize & start adapter instance
+ *
+ * @handle: transport handle pointing to adapter structure
+ *
+ * This function maps adapter structure to pcidev structure and initiates
+ * firmware handshake to enable/initialize on-chip FCoE components.
+ * This bnx2fc - cnic interface api callback is used after following
+ * conditions are met -
+ * a) underlying network interface is up (marked by event NETDEV_UP
+ * from netdev
+ * b) bnx2fc adatper structure is registered.
+ */
+static void bnx2fc_ulp_start(void *handle)
+{
+ struct bnx2fc_hba *hba = handle;
+ struct bnx2fc_interface *interface;
+ struct fcoe_ctlr *ctlr;
+ struct fc_lport *lport;
+
+ mutex_lock(&bnx2fc_dev_lock);
+
+ if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags))
+ bnx2fc_fw_init(hba);
+
+ BNX2FC_MISC_DBG("bnx2fc started.\n");
+
+ list_for_each_entry(interface, &if_list, list) {
+ if (interface->hba == hba) {
+ ctlr = bnx2fc_to_ctlr(interface);
+ lport = ctlr->lp;
+ /* Kick off Fabric discovery*/
+ printk(KERN_ERR PFX "ulp_init: start discovery\n");
+ lport->tt.frame_send = bnx2fc_xmit;
+ bnx2fc_start_disc(interface);
+ }
+ }
+
+ mutex_unlock(&bnx2fc_dev_lock);
+}
+
+static void bnx2fc_port_shutdown(struct fc_lport *lport)
+{
+ BNX2FC_MISC_DBG("Entered %s\n", __func__);
+ fc_fabric_logoff(lport);
+ fc_lport_destroy(lport);
+}
+
+static void bnx2fc_stop(struct bnx2fc_interface *interface)
+{
+ struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
+ struct fc_lport *lport;
+ struct fc_lport *vport;
+
+ if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags))
+ return;
+
+ lport = ctlr->lp;
+ bnx2fc_port_shutdown(lport);
+
+ mutex_lock(&lport->lp_mutex);
+ list_for_each_entry(vport, &lport->vports, list)
+ fc_host_port_type(vport->host) =
+ FC_PORTTYPE_UNKNOWN;
+ mutex_unlock(&lport->lp_mutex);
+ fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
+ fcoe_ctlr_link_down(ctlr);
+ fcoe_clean_pending_queue(lport);
+}
+
+static int bnx2fc_fw_init(struct bnx2fc_hba *hba)
+{
+#define BNX2FC_INIT_POLL_TIME (1000 / HZ)
+ int rc = -1;
+ int i = HZ;
+
+ rc = bnx2fc_bind_adapter_devices(hba);
+ if (rc) {
+ printk(KERN_ALERT PFX
+ "bnx2fc_bind_adapter_devices failed - rc = %d\n", rc);
+ goto err_out;
+ }
+
+ rc = bnx2fc_send_fw_fcoe_init_msg(hba);
+ if (rc) {
+ printk(KERN_ALERT PFX
+ "bnx2fc_send_fw_fcoe_init_msg failed - rc = %d\n", rc);
+ goto err_unbind;
+ }
+
+ /*
+ * Wait until the adapter init message is complete, and adapter
+ * state is UP.
+ */
+ while (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state) && i--)
+ msleep(BNX2FC_INIT_POLL_TIME);
+
+ if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) {
+ printk(KERN_ERR PFX "bnx2fc_start: %s failed to initialize. "
+ "Ignoring...\n",
+ hba->cnic->netdev->name);
+ rc = -1;
+ goto err_unbind;
+ }
+
+
+ set_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags);
+ return 0;
+
+err_unbind:
+ bnx2fc_unbind_adapter_devices(hba);
+err_out:
+ return rc;
+}
+
+static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba)
+{
+ if (test_and_clear_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags)) {
+ if (bnx2fc_send_fw_fcoe_destroy_msg(hba) == 0) {
+ init_timer(&hba->destroy_timer);
+ hba->destroy_timer.expires = BNX2FC_FW_TIMEOUT +
+ jiffies;
+ hba->destroy_timer.function = bnx2fc_destroy_timer;
+ hba->destroy_timer.data = (unsigned long)hba;
+ add_timer(&hba->destroy_timer);
+ wait_event_interruptible(hba->destroy_wait,
+ test_bit(BNX2FC_FLAG_DESTROY_CMPL,
+ &hba->flags));
+ clear_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags);
+ /* This should never happen */
+ if (signal_pending(current))
+ flush_signals(current);
+
+ del_timer_sync(&hba->destroy_timer);
+ }
+ bnx2fc_unbind_adapter_devices(hba);
+ }
+}
+
+/**
+ * bnx2fc_ulp_stop - cnic callback to shutdown adapter instance
+ *
+ * @handle: transport handle pointing to adapter structure
+ *
+ * Driver checks if adapter is already in shutdown mode, if not start
+ * the shutdown process.
+ */
+static void bnx2fc_ulp_stop(void *handle)
+{
+ struct bnx2fc_hba *hba = handle;
+ struct bnx2fc_interface *interface;
+
+ printk(KERN_ERR "ULP_STOP\n");
+
+ mutex_lock(&bnx2fc_dev_lock);
+ if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags))
+ goto exit;
+ list_for_each_entry(interface, &if_list, list) {
+ if (interface->hba == hba)
+ bnx2fc_stop(interface);
+ }
+ BUG_ON(hba->num_ofld_sess != 0);
+
+ mutex_lock(&hba->hba_mutex);
+ clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
+ clear_bit(ADAPTER_STATE_GOING_DOWN,
+ &hba->adapter_state);
+
+ clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
+ mutex_unlock(&hba->hba_mutex);
+
+ bnx2fc_fw_destroy(hba);
+exit:
+ mutex_unlock(&bnx2fc_dev_lock);
+}
+
+static void bnx2fc_start_disc(struct bnx2fc_interface *interface)
+{
+ struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
+ struct fc_lport *lport;
+ int wait_cnt = 0;
+
+ BNX2FC_MISC_DBG("Entered %s\n", __func__);
+ /* Kick off FIP/FLOGI */
+ if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) {
+ printk(KERN_ERR PFX "Init not done yet\n");
+ return;
+ }
+
+ lport = ctlr->lp;
+ BNX2FC_HBA_DBG(lport, "calling fc_fabric_login\n");
+
+ if (!bnx2fc_link_ok(lport) && interface->enabled) {
+ BNX2FC_HBA_DBG(lport, "ctlr_link_up\n");
+ fcoe_ctlr_link_up(ctlr);
+ fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
+ set_bit(ADAPTER_STATE_READY, &interface->hba->adapter_state);
+ }
+
+ /* wait for the FCF to be selected before issuing FLOGI */
+ while (!ctlr->sel_fcf) {
+ msleep(250);
+ /* give up after 3 secs */
+ if (++wait_cnt > 12)
+ break;
+ }
+
+ /* Reset max receive frame size to default */
+ if (fc_set_mfs(lport, BNX2FC_MFS))
+ return;
+
+ fc_lport_init(lport);
+ fc_fabric_login(lport);
+}
+
+
+/**
+ * bnx2fc_ulp_init - Initialize an adapter instance
+ *
+ * @dev : cnic device handle
+ * Called from cnic_register_driver() context to initialize all
+ * enumerated cnic devices. This routine allocates adapter structure
+ * and other device specific resources.
+ */
+static void bnx2fc_ulp_init(struct cnic_dev *dev)
+{
+ struct bnx2fc_hba *hba;
+ int rc = 0;
+
+ BNX2FC_MISC_DBG("Entered %s\n", __func__);
+ /* bnx2fc works only when bnx2x is loaded */
+ if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags) ||
+ (dev->max_fcoe_conn == 0)) {
+ printk(KERN_ERR PFX "bnx2fc FCoE not supported on %s,"
+ " flags: %lx fcoe_conn: %d\n",
+ dev->netdev->name, dev->flags, dev->max_fcoe_conn);
+ return;
+ }
+
+ hba = bnx2fc_hba_create(dev);
+ if (!hba) {
+ printk(KERN_ERR PFX "hba initialization failed\n");
+ return;
+ }
+
+ /* Add HBA to the adapter list */
+ mutex_lock(&bnx2fc_dev_lock);
+ list_add_tail(&hba->list, &adapter_list);
+ adapter_count++;
+ mutex_unlock(&bnx2fc_dev_lock);
+
+ dev->fcoe_cap = &hba->fcoe_cap;
+ clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
+ rc = dev->register_device(dev, CNIC_ULP_FCOE,
+ (void *) hba);
+ if (rc)
+ printk(KERN_ERR PFX "register_device failed, rc = %d\n", rc);
+ else
+ set_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
+}
+
+/* Assumes rtnl_lock and the bnx2fc_dev_lock are already taken */
+static int __bnx2fc_disable(struct fcoe_ctlr *ctlr)
+{
+ struct bnx2fc_interface *interface = fcoe_ctlr_priv(ctlr);
+
+ if (interface->enabled == true) {
+ if (!ctlr->lp) {
+ pr_err(PFX "__bnx2fc_disable: lport not found\n");
+ return -ENODEV;
+ } else {
+ interface->enabled = false;
+ fcoe_ctlr_link_down(ctlr);
+ fcoe_clean_pending_queue(ctlr->lp);
+ }
+ }
+ return 0;
+}
+
+/**
+ * Deperecated: Use bnx2fc_enabled()
+ */
+static int bnx2fc_disable(struct net_device *netdev)
+{
+ struct bnx2fc_interface *interface;
+ struct fcoe_ctlr *ctlr;
+ int rc = 0;
+
+ rtnl_lock();
+ mutex_lock(&bnx2fc_dev_lock);
+
+ interface = bnx2fc_interface_lookup(netdev);
+ ctlr = bnx2fc_to_ctlr(interface);
+
+ if (!interface) {
+ rc = -ENODEV;
+ pr_err(PFX "bnx2fc_disable: interface not found\n");
+ } else {
+ rc = __bnx2fc_disable(ctlr);
+ }
+ mutex_unlock(&bnx2fc_dev_lock);
+ rtnl_unlock();
+ return rc;
+}
+
+static int __bnx2fc_enable(struct fcoe_ctlr *ctlr)
+{
+ struct bnx2fc_interface *interface = fcoe_ctlr_priv(ctlr);
+
+ if (interface->enabled == false) {
+ if (!ctlr->lp) {
+ pr_err(PFX "__bnx2fc_enable: lport not found\n");
+ return -ENODEV;
+ } else if (!bnx2fc_link_ok(ctlr->lp)) {
+ fcoe_ctlr_link_up(ctlr);
+ interface->enabled = true;
+ }
+ }
+ return 0;
+}
+
+/**
+ * Deprecated: Use bnx2fc_enabled()
+ */
+static int bnx2fc_enable(struct net_device *netdev)
+{
+ struct bnx2fc_interface *interface;
+ struct fcoe_ctlr *ctlr;
+ int rc = 0;
+
+ rtnl_lock();
+ mutex_lock(&bnx2fc_dev_lock);
+
+ interface = bnx2fc_interface_lookup(netdev);
+ ctlr = bnx2fc_to_ctlr(interface);
+ if (!interface) {
+ rc = -ENODEV;
+ pr_err(PFX "bnx2fc_enable: interface not found\n");
+ } else {
+ rc = __bnx2fc_enable(ctlr);
+ }
+
+ mutex_unlock(&bnx2fc_dev_lock);
+ rtnl_unlock();
+ return rc;
+}
+
+/**
+ * bnx2fc_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 bnx2fc_ctlr_enabled(struct fcoe_ctlr_device *cdev)
+{
+ struct fcoe_ctlr *ctlr = fcoe_ctlr_device_priv(cdev);
+
+ switch (cdev->enabled) {
+ case FCOE_CTLR_ENABLED:
+ return __bnx2fc_enable(ctlr);
+ case FCOE_CTLR_DISABLED:
+ return __bnx2fc_disable(ctlr);
+ case FCOE_CTLR_UNUSED:
+ default:
+ return -ENOTSUPP;
+ };
+}
+
+enum bnx2fc_create_link_state {
+ BNX2FC_CREATE_LINK_DOWN,
+ BNX2FC_CREATE_LINK_UP,
+};
+
+/**
+ * _bnx2fc_create() - Create bnx2fc 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 either the libfcoe 'create' module parameter
+ * via fcoe_create or from fcoe_syfs's ctlr_create file.
+ *
+ * libfcoe's 'create' module parameter is deprecated so some
+ * consolidation of code can be done when that interface is
+ * removed.
+ *
+ * Returns: 0 for success
+ */
+static int _bnx2fc_create(struct net_device *netdev,
+ enum fip_state fip_mode,
+ enum bnx2fc_create_link_state link_state)
+{
+ struct fcoe_ctlr_device *cdev;
+ struct fcoe_ctlr *ctlr;
+ struct bnx2fc_interface *interface;
+ struct bnx2fc_hba *hba;
+ struct net_device *phys_dev = netdev;
+ struct fc_lport *lport;
+ struct ethtool_drvinfo drvinfo;
+ int rc = 0;
+ int vlan_id = 0;
+
+ BNX2FC_MISC_DBG("Entered bnx2fc_create\n");
+ if (fip_mode != FIP_MODE_FABRIC) {
+ printk(KERN_ERR "fip mode not FABRIC\n");
+ return -EIO;
+ }
+
+ rtnl_lock();
+
+ mutex_lock(&bnx2fc_dev_lock);
+
+ if (!try_module_get(THIS_MODULE)) {
+ rc = -EINVAL;
+ goto mod_err;
+ }
+
+ /* obtain physical netdev */
+ if (netdev->priv_flags & IFF_802_1Q_VLAN)
+ phys_dev = vlan_dev_real_dev(netdev);
+
+ /* verify if the physical device is a netxtreme2 device */
+ if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) {
+ memset(&drvinfo, 0, sizeof(drvinfo));
+ phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo);
+ if (strncmp(drvinfo.driver, "bnx2x", strlen("bnx2x"))) {
+ printk(KERN_ERR PFX "Not a netxtreme2 device\n");
+ rc = -EINVAL;
+ goto netdev_err;
+ }
+ } else {
+ printk(KERN_ERR PFX "unable to obtain drv_info\n");
+ rc = -EINVAL;
+ goto netdev_err;
+ }
+
+ /* obtain interface and initialize rest of the structure */
+ hba = bnx2fc_hba_lookup(phys_dev);
+ if (!hba) {
+ rc = -ENODEV;
+ printk(KERN_ERR PFX "bnx2fc_create: hba not found\n");
+ goto netdev_err;
+ }
+
+ if (bnx2fc_interface_lookup(netdev)) {
+ rc = -EEXIST;
+ goto netdev_err;
+ }
+
+ interface = bnx2fc_interface_create(hba, netdev, fip_mode);
+ if (!interface) {
+ printk(KERN_ERR PFX "bnx2fc_interface_create failed\n");
+ rc = -ENOMEM;
+ goto ifput_err;
+ }
+
+ if (netdev->priv_flags & IFF_802_1Q_VLAN) {
+ vlan_id = vlan_dev_vlan_id(netdev);
+ interface->vlan_enabled = 1;
+ }
+
+ ctlr = bnx2fc_to_ctlr(interface);
+ cdev = fcoe_ctlr_to_ctlr_dev(ctlr);
+ interface->vlan_id = vlan_id;
+
+ interface->timer_work_queue =
+ create_singlethread_workqueue("bnx2fc_timer_wq");
+ if (!interface->timer_work_queue) {
+ printk(KERN_ERR PFX "ulp_init could not create timer_wq\n");
+ rc = -EINVAL;
+ goto ifput_err;
+ }
+
+ lport = bnx2fc_if_create(interface, &cdev->dev, 0);
+ if (!lport) {
+ printk(KERN_ERR PFX "Failed to create interface (%s)\n",
+ netdev->name);
+ rc = -EINVAL;
+ goto if_create_err;
+ }
+
+ /* Add interface to if_list */
+ list_add_tail(&interface->list, &if_list);
+
+ lport->boot_time = jiffies;
+
+ /* Make this master N_port */
+ ctlr->lp = lport;
+
+ if (link_state == BNX2FC_CREATE_LINK_UP)
+ cdev->enabled = FCOE_CTLR_ENABLED;
+ else
+ cdev->enabled = FCOE_CTLR_DISABLED;
+
+ if (link_state == BNX2FC_CREATE_LINK_UP &&
+ !bnx2fc_link_ok(lport)) {
+ fcoe_ctlr_link_up(ctlr);
+ fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
+ set_bit(ADAPTER_STATE_READY, &interface->hba->adapter_state);
+ }
+
+ BNX2FC_HBA_DBG(lport, "create: START DISC\n");
+ bnx2fc_start_disc(interface);
+
+ if (link_state == BNX2FC_CREATE_LINK_UP)
+ interface->enabled = true;
+
+ /*
+ * Release from kref_init in bnx2fc_interface_setup, on success
+ * lport should be holding a reference taken in bnx2fc_if_create
+ */
+ bnx2fc_interface_put(interface);
+ /* put netdev that was held while calling dev_get_by_name */
+ mutex_unlock(&bnx2fc_dev_lock);
+ rtnl_unlock();
+ return 0;
+
+if_create_err:
+ destroy_workqueue(interface->timer_work_queue);
+ifput_err:
+ bnx2fc_net_cleanup(interface);
+ bnx2fc_interface_put(interface);
+ goto mod_err;
+netdev_err:
+ module_put(THIS_MODULE);
+mod_err:
+ mutex_unlock(&bnx2fc_dev_lock);
+ rtnl_unlock();
+ return rc;
+}
+
+/**
+ * bnx2fc_create() - Create a bnx2fc 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 for success
+ */
+static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode)
+{
+ return _bnx2fc_create(netdev, fip_mode, BNX2FC_CREATE_LINK_UP);
+}
+
+/**
+ * bnx2fc_ctlr_alloc() - Allocate a bnx2fc 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 bnx2fc_ctlr_alloc(struct net_device *netdev)
+{
+ return _bnx2fc_create(netdev, FIP_MODE_FABRIC,
+ BNX2FC_CREATE_LINK_DOWN);
+}
+
+/**
+ * bnx2fc_find_hba_for_cnic - maps cnic instance to bnx2fc hba instance
+ *
+ * @cnic: Pointer to cnic device instance
+ *
+ **/
+static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic)
+{
+ struct bnx2fc_hba *hba;
+
+ /* Called with bnx2fc_dev_lock held */
+ list_for_each_entry(hba, &adapter_list, list) {
+ if (hba->cnic == cnic)
+ return hba;
+ }
+ return NULL;
+}
+
+static struct bnx2fc_interface *bnx2fc_interface_lookup(struct net_device
+ *netdev)
+{
+ struct bnx2fc_interface *interface;
+
+ /* Called with bnx2fc_dev_lock held */
+ list_for_each_entry(interface, &if_list, list) {
+ if (interface->netdev == netdev)
+ return interface;
+ }
+ return NULL;
+}
+
+static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device
+ *phys_dev)
+{
+ struct bnx2fc_hba *hba;
+
+ /* Called with bnx2fc_dev_lock held */
+ list_for_each_entry(hba, &adapter_list, list) {
+ if (hba->phys_dev == phys_dev)
+ return hba;
+ }
+ printk(KERN_ERR PFX "adapter_lookup: hba NULL\n");
+ return NULL;
+}
+
+/**
+ * bnx2fc_ulp_exit - shuts down adapter instance and frees all resources
+ *
+ * @dev cnic device handle
+ */
+static void bnx2fc_ulp_exit(struct cnic_dev *dev)
+{
+ struct bnx2fc_hba *hba;
+ struct bnx2fc_interface *interface, *tmp;
+
+ BNX2FC_MISC_DBG("Entered bnx2fc_ulp_exit\n");
+
+ if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
+ printk(KERN_ERR PFX "bnx2fc port check: %s, flags: %lx\n",
+ dev->netdev->name, dev->flags);
+ return;
+ }
+
+ mutex_lock(&bnx2fc_dev_lock);
+ hba = bnx2fc_find_hba_for_cnic(dev);
+ if (!hba) {
+ printk(KERN_ERR PFX "bnx2fc_ulp_exit: hba not found, dev 0%p\n",
+ dev);
+ mutex_unlock(&bnx2fc_dev_lock);
+ return;
+ }
+
+ list_del_init(&hba->list);
+ adapter_count--;
+
+ list_for_each_entry_safe(interface, tmp, &if_list, list)
+ /* destroy not called yet, move to quiesced list */
+ if (interface->hba == hba)
+ __bnx2fc_destroy(interface);
+ mutex_unlock(&bnx2fc_dev_lock);
+
+ /* Ensure ALL destroy work has been completed before return */
+ flush_workqueue(bnx2fc_wq);
+
+ bnx2fc_ulp_stop(hba);
+ /* unregister cnic device */
+ if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic))
+ hba->cnic->unregister_device(hba->cnic, CNIC_ULP_FCOE);
+ bnx2fc_hba_destroy(hba);
+}
+
+/**
+ * bnx2fc_fcoe_reset - Resets the fcoe
+ *
+ * @shost: shost the reset is from
+ *
+ * Returns: always 0
+ */
+static int bnx2fc_fcoe_reset(struct Scsi_Host *shost)
+{
+ struct fc_lport *lport = shost_priv(shost);
+ fc_lport_reset(lport);
+ return 0;
+}
+
+
+static bool bnx2fc_match(struct net_device *netdev)
+{
+ struct net_device *phys_dev = netdev;
+
+ mutex_lock(&bnx2fc_dev_lock);
+ if (netdev->priv_flags & IFF_802_1Q_VLAN)
+ phys_dev = vlan_dev_real_dev(netdev);
+
+ if (bnx2fc_hba_lookup(phys_dev)) {
+ mutex_unlock(&bnx2fc_dev_lock);
+ return true;
+ }
+
+ mutex_unlock(&bnx2fc_dev_lock);
+ return false;
+}
+
+
+static struct fcoe_transport bnx2fc_transport = {
+ .name = {"bnx2fc"},
+ .attached = false,
+ .list = LIST_HEAD_INIT(bnx2fc_transport.list),
+ .alloc = bnx2fc_ctlr_alloc,
+ .match = bnx2fc_match,
+ .create = bnx2fc_create,
+ .destroy = bnx2fc_destroy,
+ .enable = bnx2fc_enable,
+ .disable = bnx2fc_disable,
+};
+
+/**
+ * bnx2fc_percpu_thread_create - Create a receive thread for an
+ * online CPU
+ *
+ * @cpu: cpu index for the online cpu
+ */
+static void bnx2fc_percpu_thread_create(unsigned int cpu)
+{
+ struct bnx2fc_percpu_s *p;
+ struct task_struct *thread;
+
+ p = &per_cpu(bnx2fc_percpu, cpu);
+
+ thread = kthread_create_on_node(bnx2fc_percpu_io_thread,
+ (void *)p, cpu_to_node(cpu),
+ "bnx2fc_thread/%d", cpu);
+ /* bind thread to the cpu */
+ if (likely(!IS_ERR(thread))) {
+ kthread_bind(thread, cpu);
+ p->iothread = thread;
+ wake_up_process(thread);
+ }
+}
+
+static void bnx2fc_percpu_thread_destroy(unsigned int cpu)
+{
+ struct bnx2fc_percpu_s *p;
+ struct task_struct *thread;
+ struct bnx2fc_work *work, *tmp;
+
+ BNX2FC_MISC_DBG("destroying io thread for CPU %d\n", cpu);
+
+ /* Prevent any new work from being queued for this CPU */
+ p = &per_cpu(bnx2fc_percpu, cpu);
+ spin_lock_bh(&p->fp_work_lock);
+ thread = p->iothread;
+ p->iothread = NULL;
+
+
+ /* Free all work in the list */
+ list_for_each_entry_safe(work, tmp, &p->work_list, list) {
+ list_del_init(&work->list);
+ bnx2fc_process_cq_compl(work->tgt, work->wqe);
+ kfree(work);
+ }
+
+ spin_unlock_bh(&p->fp_work_lock);
+
+ if (thread)
+ kthread_stop(thread);
+}
+
+/**
+ * bnx2fc_cpu_callback - Handler for CPU hotplug events
+ *
+ * @nfb: The callback data block
+ * @action: The event triggering the callback
+ * @hcpu: The index of the CPU that the event is for
+ *
+ * This creates or destroys per-CPU data for fcoe
+ *
+ * Returns NOTIFY_OK always.
+ */
+static int bnx2fc_cpu_callback(struct notifier_block *nfb,
+ unsigned long action, void *hcpu)
+{
+ unsigned cpu = (unsigned long)hcpu;
+
+ switch (action) {
+ case CPU_ONLINE:
+ case CPU_ONLINE_FROZEN:
+ printk(PFX "CPU %x online: Create Rx thread\n", cpu);
+ bnx2fc_percpu_thread_create(cpu);
+ break;
+ case CPU_DEAD:
+ case CPU_DEAD_FROZEN:
+ printk(PFX "CPU %x offline: Remove Rx thread\n", cpu);
+ bnx2fc_percpu_thread_destroy(cpu);
+ break;
+ default:
+ break;
+ }
+ return NOTIFY_OK;
+}
+
+/**
+ * bnx2fc_mod_init - module init entry point
+ *
+ * Initialize driver wide global data structures, and register
+ * with cnic module
+ **/
+static int __init bnx2fc_mod_init(void)
+{
+ struct fcoe_percpu_s *bg;
+ struct task_struct *l2_thread;
+ int rc = 0;
+ unsigned int cpu = 0;
+ struct bnx2fc_percpu_s *p;
+
+ printk(KERN_INFO PFX "%s", version);
+
+ /* register as a fcoe transport */
+ rc = fcoe_transport_attach(&bnx2fc_transport);
+ if (rc) {
+ printk(KERN_ERR "failed to register an fcoe transport, check "
+ "if libfcoe is loaded\n");
+ goto out;
+ }
+
+ INIT_LIST_HEAD(&adapter_list);
+ INIT_LIST_HEAD(&if_list);
+ mutex_init(&bnx2fc_dev_lock);
+ adapter_count = 0;
+
+ /* Attach FC transport template */
+ rc = bnx2fc_attach_transport();
+ if (rc)
+ goto detach_ft;
+
+ bnx2fc_wq = alloc_workqueue("bnx2fc", 0, 0);
+ if (!bnx2fc_wq) {
+ rc = -ENOMEM;
+ goto release_bt;
+ }
+
+ bg = &bnx2fc_global;
+ skb_queue_head_init(&bg->fcoe_rx_list);
+ l2_thread = kthread_create(bnx2fc_l2_rcv_thread,
+ (void *)bg,
+ "bnx2fc_l2_thread");
+ if (IS_ERR(l2_thread)) {
+ rc = PTR_ERR(l2_thread);
+ goto free_wq;
+ }
+ wake_up_process(l2_thread);
+ spin_lock_bh(&bg->fcoe_rx_list.lock);
+ bg->thread = l2_thread;
+ spin_unlock_bh(&bg->fcoe_rx_list.lock);
+
+ for_each_possible_cpu(cpu) {
+ p = &per_cpu(bnx2fc_percpu, cpu);
+ INIT_LIST_HEAD(&p->work_list);
+ spin_lock_init(&p->fp_work_lock);
+ }
+
+ cpu_notifier_register_begin();
+
+ for_each_online_cpu(cpu) {
+ bnx2fc_percpu_thread_create(cpu);
+ }
+
+ /* Initialize per CPU interrupt thread */
+ __register_hotcpu_notifier(&bnx2fc_cpu_notifier);
+
+ cpu_notifier_register_done();
+
+ cnic_register_driver(CNIC_ULP_FCOE, &bnx2fc_cnic_cb);
+
+ return 0;
+
+free_wq:
+ destroy_workqueue(bnx2fc_wq);
+release_bt:
+ bnx2fc_release_transport();
+detach_ft:
+ fcoe_transport_detach(&bnx2fc_transport);
+out:
+ return rc;
+}
+
+static void __exit bnx2fc_mod_exit(void)
+{
+ LIST_HEAD(to_be_deleted);
+ struct bnx2fc_hba *hba, *next;
+ struct fcoe_percpu_s *bg;
+ struct task_struct *l2_thread;
+ struct sk_buff *skb;
+ unsigned int cpu = 0;
+
+ /*
+ * NOTE: Since cnic calls register_driver routine rtnl_lock,
+ * it will have higher precedence than bnx2fc_dev_lock.
+ * unregister_device() cannot be called with bnx2fc_dev_lock
+ * held.
+ */
+ mutex_lock(&bnx2fc_dev_lock);
+ list_splice(&adapter_list, &to_be_deleted);
+ INIT_LIST_HEAD(&adapter_list);
+ adapter_count = 0;
+ mutex_unlock(&bnx2fc_dev_lock);
+
+ /* Unregister with cnic */
+ list_for_each_entry_safe(hba, next, &to_be_deleted, list) {
+ list_del_init(&hba->list);
+ printk(KERN_ERR PFX "MOD_EXIT:destroy hba = 0x%p\n",
+ hba);
+ bnx2fc_ulp_stop(hba);
+ /* unregister cnic device */
+ if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED,
+ &hba->reg_with_cnic))
+ hba->cnic->unregister_device(hba->cnic,
+ CNIC_ULP_FCOE);
+ bnx2fc_hba_destroy(hba);
+ }
+ cnic_unregister_driver(CNIC_ULP_FCOE);
+
+ /* Destroy global thread */
+ bg = &bnx2fc_global;
+ spin_lock_bh(&bg->fcoe_rx_list.lock);
+ l2_thread = bg->thread;
+ bg->thread = NULL;
+ while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL)
+ kfree_skb(skb);
+
+ spin_unlock_bh(&bg->fcoe_rx_list.lock);
+
+ if (l2_thread)
+ kthread_stop(l2_thread);
+
+ cpu_notifier_register_begin();
+
+ /* Destroy per cpu threads */
+ for_each_online_cpu(cpu) {
+ bnx2fc_percpu_thread_destroy(cpu);
+ }
+
+ __unregister_hotcpu_notifier(&bnx2fc_cpu_notifier);
+
+ cpu_notifier_register_done();
+
+ destroy_workqueue(bnx2fc_wq);
+ /*
+ * detach from scsi transport
+ * must happen after all destroys are done
+ */
+ bnx2fc_release_transport();
+
+ /* detach from fcoe transport */
+ fcoe_transport_detach(&bnx2fc_transport);
+}
+
+module_init(bnx2fc_mod_init);
+module_exit(bnx2fc_mod_exit);
+
+static struct fcoe_sysfs_function_template bnx2fc_fcoe_sysfs_templ = {
+ .set_fcoe_ctlr_enabled = bnx2fc_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 = bnx2fc_fcf_get_vlan_id,
+};
+
+static struct fc_function_template bnx2fc_transport_function = {
+ .show_host_node_name = 1,
+ .show_host_port_name = 1,
+ .show_host_supported_classes = 1,
+ .show_host_supported_fc4s = 1,
+ .show_host_active_fc4s = 1,
+ .show_host_maxframe_size = 1,
+
+ .show_host_port_id = 1,
+ .show_host_supported_speeds = 1,
+ .get_host_speed = fc_get_host_speed,
+ .show_host_speed = 1,
+ .show_host_port_type = 1,
+ .get_host_port_state = fc_get_host_port_state,
+ .show_host_port_state = 1,
+ .show_host_symbolic_name = 1,
+
+ .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
+ sizeof(struct bnx2fc_rport)),
+ .show_rport_maxframe_size = 1,
+ .show_rport_supported_classes = 1,
+
+ .show_host_fabric_name = 1,
+ .show_starget_node_name = 1,
+ .show_starget_port_name = 1,
+ .show_starget_port_id = 1,
+ .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
+ .show_rport_dev_loss_tmo = 1,
+ .get_fc_host_stats = bnx2fc_get_host_stats,
+
+ .issue_fc_host_lip = bnx2fc_fcoe_reset,
+
+ .terminate_rport_io = fc_rport_terminate_io,
+
+ .vport_create = bnx2fc_vport_create,
+ .vport_delete = bnx2fc_vport_destroy,
+ .vport_disable = bnx2fc_vport_disable,
+ .bsg_request = fc_lport_bsg_request,
+};
+
+static struct fc_function_template bnx2fc_vport_xport_function = {
+ .show_host_node_name = 1,
+ .show_host_port_name = 1,
+ .show_host_supported_classes = 1,
+ .show_host_supported_fc4s = 1,
+ .show_host_active_fc4s = 1,
+ .show_host_maxframe_size = 1,
+
+ .show_host_port_id = 1,
+ .show_host_supported_speeds = 1,
+ .get_host_speed = fc_get_host_speed,
+ .show_host_speed = 1,
+ .show_host_port_type = 1,
+ .get_host_port_state = fc_get_host_port_state,
+ .show_host_port_state = 1,
+ .show_host_symbolic_name = 1,
+
+ .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
+ sizeof(struct bnx2fc_rport)),
+ .show_rport_maxframe_size = 1,
+ .show_rport_supported_classes = 1,
+
+ .show_host_fabric_name = 1,
+ .show_starget_node_name = 1,
+ .show_starget_port_name = 1,
+ .show_starget_port_id = 1,
+ .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
+ .show_rport_dev_loss_tmo = 1,
+ .get_fc_host_stats = fc_get_host_stats,
+ .issue_fc_host_lip = bnx2fc_fcoe_reset,
+ .terminate_rport_io = fc_rport_terminate_io,
+ .bsg_request = fc_lport_bsg_request,
+};
+
+/**
+ * scsi_host_template structure used while registering with SCSI-ml
+ */
+static struct scsi_host_template bnx2fc_shost_template = {
+ .module = THIS_MODULE,
+ .name = "QLogic Offload FCoE Initiator",
+ .queuecommand = bnx2fc_queuecommand,
+ .eh_abort_handler = bnx2fc_eh_abort, /* abts */
+ .eh_device_reset_handler = bnx2fc_eh_device_reset, /* lun reset */
+ .eh_target_reset_handler = bnx2fc_eh_target_reset, /* tgt reset */
+ .eh_host_reset_handler = fc_eh_host_reset,
+ .slave_alloc = fc_slave_alloc,
+ .change_queue_depth = scsi_change_queue_depth,
+ .this_id = -1,
+ .cmd_per_lun = 3,
+ .use_clustering = ENABLE_CLUSTERING,
+ .sg_tablesize = BNX2FC_MAX_BDS_PER_CMD,
+ .max_sectors = 1024,
+ .use_blk_tags = 1,
+ .track_queue_depth = 1,
+};
+
+static struct libfc_function_template bnx2fc_libfc_fcn_templ = {
+ .frame_send = bnx2fc_xmit,
+ .elsct_send = bnx2fc_elsct_send,
+ .fcp_abort_io = bnx2fc_abort_io,
+ .fcp_cleanup = bnx2fc_cleanup,
+ .get_lesb = fcoe_get_lesb,
+ .rport_event_callback = bnx2fc_rport_event_handler,
+};
+
+/**
+ * bnx2fc_cnic_cb - global template of bnx2fc - cnic driver interface
+ * structure carrying callback function pointers
+ */
+static struct cnic_ulp_ops bnx2fc_cnic_cb = {
+ .owner = THIS_MODULE,
+ .cnic_init = bnx2fc_ulp_init,
+ .cnic_exit = bnx2fc_ulp_exit,
+ .cnic_start = bnx2fc_ulp_start,
+ .cnic_stop = bnx2fc_ulp_stop,
+ .indicate_kcqes = bnx2fc_indicate_kcqe,
+ .indicate_netevent = bnx2fc_indicate_netevent,
+ .cnic_get_stats = bnx2fc_ulp_get_stats,
+};
Code Review / kvmfornfv.git / blobdiff