void qedf_update_src_mac(struct fc_lport *lport, u8 *addr)
{
struct qedf_ctx *qedf = lport_priv(lport);
QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
"Setting data_src_addr=%pM.\n", addr);
ether_addr_copy(qedf->data_src_addr, addr);
}
u8 *qedf_get_src_mac(struct fc_lport *lport)
{
u8 mac[ETH_ALEN];
u8 port_id[3];
struct qedf_ctx *qedf = lport_priv(lport);
/* We need to use the lport port_id to create the data_src_addr */
if (is_zero_ether_addr(qedf->data_src_addr)) {
hton24(port_id, lport->port_id);
fc_fcoe_set_mac(mac, port_id);
qedf->ctlr.update_mac(lport, mac);
}
return qedf->data_src_addr;
}
static void fnic_get_host_speed(struct Scsi_Host *shost)
{
struct fc_lport *lp = shost_priv(shost);
struct fnic *fnic = lport_priv(lp);
u32 port_speed = vnic_dev_port_speed(fnic->vdev);
/* Add in other values as they get defined in fw */
switch (port_speed) {
case 10000:
fc_host_speed(shost) = FC_PORTSPEED_10GBIT;
break;
default:
fc_host_speed(shost) = FC_PORTSPEED_10GBIT;
break;
}
}
static int fnic_slave_alloc(struct scsi_device *sdev)
{
struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
struct fc_lport *lp = shost_priv(sdev->host);
struct fnic *fnic = lport_priv(lp);
sdev->tagged_supported = 1;
if (!rport || fc_remote_port_chkready(rport))
return -ENXIO;
if (sdev->tagged_supported)
scsi_activate_tcq(sdev, fnic_max_qdepth);
rport->dev_loss_tmo = fnic->config.port_down_timeout / 1000;
return 0;
}
static struct fc_host_statistics *fnic_get_stats(struct Scsi_Host *host)
{
int ret;
struct fc_lport *lp = shost_priv(host);
struct fnic *fnic = lport_priv(lp);
struct fc_host_statistics *stats = &lp->host_stats;
struct vnic_stats *vs;
unsigned long flags;
if (time_before(jiffies, fnic->stats_time + HZ / FNIC_STATS_RATE_LIMIT))
return stats;
fnic->stats_time = jiffies;
spin_lock_irqsave(&fnic->fnic_lock, flags);
ret = vnic_dev_stats_dump(fnic->vdev, &fnic->stats);
spin_unlock_irqrestore(&fnic->fnic_lock, flags);
if (ret) {
FNIC_MAIN_DBG(KERN_DEBUG, fnic->lport->host,
"fnic: Get vnic stats failed"
" 0x%x", ret);
return stats;
}
vs = fnic->stats;
stats->tx_frames = vs->tx.tx_unicast_frames_ok;
stats->tx_words = vs->tx.tx_unicast_bytes_ok / 4;
stats->rx_frames = vs->rx.rx_unicast_frames_ok;
stats->rx_words = vs->rx.rx_unicast_bytes_ok / 4;
stats->error_frames = vs->tx.tx_errors + vs->rx.rx_errors;
stats->dumped_frames = vs->tx.tx_drops + vs->rx.rx_drop;
stats->invalid_crc_count = vs->rx.rx_crc_errors;
stats->seconds_since_last_reset =
(jiffies - fnic->stats_reset_time) / HZ;
stats->fcp_input_megabytes = div_u64(fnic->fcp_input_bytes, 1000000);
stats->fcp_output_megabytes = div_u64(fnic->fcp_output_bytes, 1000000);
return stats;
}
static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
struct Scsi_Host *host;
struct fc_lport *lp;
struct fnic *fnic;
mempool_t *pool;
int err;
int i;
unsigned long flags;
/*
* Allocate SCSI Host and set up association between host,
* local port, and fnic
*/
lp = libfc_host_alloc(&fnic_host_template, sizeof(struct fnic));
if (!lp) {
printk(KERN_ERR PFX "Unable to alloc libfc local port\n");
err = -ENOMEM;
goto err_out;
}
host = lp->host;
fnic = lport_priv(lp);
fnic->lport = lp;
fnic->ctlr.lp = lp;
snprintf(fnic->name, sizeof(fnic->name) - 1, "%s%d", DRV_NAME,
host->host_no);
host->transportt = fnic_fc_transport;
err = fnic_stats_debugfs_init(fnic);
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"Failed to initialize debugfs for stats\n");
fnic_stats_debugfs_remove(fnic);
}
/* Setup PCI resources */
pci_set_drvdata(pdev, fnic);
fnic->pdev = pdev;
err = pci_enable_device(pdev);
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"Cannot enable PCI device, aborting.\n");
goto err_out_free_hba;
}
err = pci_request_regions(pdev, DRV_NAME);
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"Cannot enable PCI resources, aborting\n");
goto err_out_disable_device;
}
pci_set_master(pdev);
/* Query PCI controller on system for DMA addressing
* limitation for the device. Try 64-bit first, and
* fail to 32-bit.
*/
err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
if (err) {
err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"No usable DMA configuration "
"aborting\n");
goto err_out_release_regions;
}
err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"Unable to obtain 32-bit DMA "
"for consistent allocations, aborting.\n");
goto err_out_release_regions;
}
} else {
err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"Unable to obtain 64-bit DMA "
"for consistent allocations, aborting.\n");
goto err_out_release_regions;
}
}
/* Map vNIC resources from BAR0 */
if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
shost_printk(KERN_ERR, fnic->lport->host,
"BAR0 not memory-map'able, aborting.\n");
err = -ENODEV;
goto err_out_release_regions;
}
fnic->bar0.vaddr = pci_iomap(pdev, 0, 0);
fnic->bar0.bus_addr = pci_resource_start(pdev, 0);
fnic->bar0.len = pci_resource_len(pdev, 0);
if (!fnic->bar0.vaddr) {
shost_printk(KERN_ERR, fnic->lport->host,
"Cannot memory-map BAR0 res hdr, "
"aborting.\n");
err = -ENODEV;
goto err_out_release_regions;
}
fnic->vdev = vnic_dev_register(NULL, fnic, pdev, &fnic->bar0);
if (!fnic->vdev) {
shost_printk(KERN_ERR, fnic->lport->host,
"vNIC registration failed, "
"aborting.\n");
err = -ENODEV;
goto err_out_iounmap;
}
err = fnic_dev_wait(fnic->vdev, vnic_dev_open,
vnic_dev_open_done, 0);
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"vNIC dev open failed, aborting.\n");
goto err_out_vnic_unregister;
}
err = vnic_dev_init(fnic->vdev, 0);
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"vNIC dev init failed, aborting.\n");
goto err_out_dev_close;
}
err = vnic_dev_mac_addr(fnic->vdev, fnic->ctlr.ctl_src_addr);
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"vNIC get MAC addr failed \n");
goto err_out_dev_close;
}
/* set data_src for point-to-point mode and to keep it non-zero */
memcpy(fnic->data_src_addr, fnic->ctlr.ctl_src_addr, ETH_ALEN);
/* Get vNIC configuration */
err = fnic_get_vnic_config(fnic);
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"Get vNIC configuration failed, "
"aborting.\n");
goto err_out_dev_close;
}
/* Configure Maximum Outstanding IO reqs*/
if (fnic->config.io_throttle_count != FNIC_UCSM_DFLT_THROTTLE_CNT_BLD) {
host->can_queue = min_t(u32, FNIC_MAX_IO_REQ,
max_t(u32, FNIC_MIN_IO_REQ,
fnic->config.io_throttle_count));
}
fnic->fnic_max_tag_id = host->can_queue;
err = scsi_init_shared_tag_map(host, fnic->fnic_max_tag_id);
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"Unable to alloc shared tag map\n");
goto err_out_dev_close;
}
host->max_lun = fnic->config.luns_per_tgt;
host->max_id = FNIC_MAX_FCP_TARGET;
host->max_cmd_len = FCOE_MAX_CMD_LEN;
fnic_get_res_counts(fnic);
err = fnic_set_intr_mode(fnic);
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"Failed to set intr mode, "
"aborting.\n");
goto err_out_dev_close;
}
err = fnic_alloc_vnic_resources(fnic);
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"Failed to alloc vNIC resources, "
"aborting.\n");
goto err_out_clear_intr;
}
/* initialize all fnic locks */
spin_lock_init(&fnic->fnic_lock);
for (i = 0; i < FNIC_WQ_MAX; i++)
spin_lock_init(&fnic->wq_lock[i]);
for (i = 0; i < FNIC_WQ_COPY_MAX; i++) {
spin_lock_init(&fnic->wq_copy_lock[i]);
fnic->wq_copy_desc_low[i] = DESC_CLEAN_LOW_WATERMARK;
fnic->fw_ack_recd[i] = 0;
fnic->fw_ack_index[i] = -1;
}
for (i = 0; i < FNIC_IO_LOCKS; i++)
spin_lock_init(&fnic->io_req_lock[i]);
fnic->io_req_pool = mempool_create_slab_pool(2, fnic_io_req_cache);
if (!fnic->io_req_pool)
goto err_out_free_resources;
pool = mempool_create_slab_pool(2, fnic_sgl_cache[FNIC_SGL_CACHE_DFLT]);
if (!pool)
goto err_out_free_ioreq_pool;
fnic->io_sgl_pool[FNIC_SGL_CACHE_DFLT] = pool;
pool = mempool_create_slab_pool(2, fnic_sgl_cache[FNIC_SGL_CACHE_MAX]);
if (!pool)
goto err_out_free_dflt_pool;
fnic->io_sgl_pool[FNIC_SGL_CACHE_MAX] = pool;
/* setup vlan config, hw inserts vlan header */
fnic->vlan_hw_insert = 1;
fnic->vlan_id = 0;
/* Initialize the FIP fcoe_ctrl struct */
fnic->ctlr.send = fnic_eth_send;
fnic->ctlr.update_mac = fnic_update_mac;
fnic->ctlr.get_src_addr = fnic_get_mac;
if (fnic->config.flags & VFCF_FIP_CAPABLE) {
shost_printk(KERN_INFO, fnic->lport->host,
"firmware supports FIP\n");
/* enable directed and multicast */
vnic_dev_packet_filter(fnic->vdev, 1, 1, 0, 0, 0);
vnic_dev_add_addr(fnic->vdev, FIP_ALL_ENODE_MACS);
vnic_dev_add_addr(fnic->vdev, fnic->ctlr.ctl_src_addr);
fnic->set_vlan = fnic_set_vlan;
fcoe_ctlr_init(&fnic->ctlr, FIP_MODE_AUTO);
setup_timer(&fnic->fip_timer, fnic_fip_notify_timer,
(unsigned long)fnic);
spin_lock_init(&fnic->vlans_lock);
INIT_WORK(&fnic->fip_frame_work, fnic_handle_fip_frame);
INIT_WORK(&fnic->event_work, fnic_handle_event);
skb_queue_head_init(&fnic->fip_frame_queue);
INIT_LIST_HEAD(&fnic->evlist);
INIT_LIST_HEAD(&fnic->vlans);
} else {
shost_printk(KERN_INFO, fnic->lport->host,
"firmware uses non-FIP mode\n");
fcoe_ctlr_init(&fnic->ctlr, FIP_MODE_NON_FIP);
}
fnic->state = FNIC_IN_FC_MODE;
atomic_set(&fnic->in_flight, 0);
fnic->state_flags = FNIC_FLAGS_NONE;
/* Enable hardware stripping of vlan header on ingress */
fnic_set_nic_config(fnic, 0, 0, 0, 0, 0, 0, 1);
/* Setup notification buffer area */
err = fnic_notify_set(fnic);
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"Failed to alloc notify buffer, aborting.\n");
goto err_out_free_max_pool;
}
/* Setup notify timer when using MSI interrupts */
if (vnic_dev_get_intr_mode(fnic->vdev) == VNIC_DEV_INTR_MODE_MSI)
setup_timer(&fnic->notify_timer,
fnic_notify_timer, (unsigned long)fnic);
/* allocate RQ buffers and post them to RQ*/
for (i = 0; i < fnic->rq_count; i++) {
err = vnic_rq_fill(&fnic->rq[i], fnic_alloc_rq_frame);
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"fnic_alloc_rq_frame can't alloc "
"frame\n");
goto err_out_free_rq_buf;
}
}
/*
* Initialization done with PCI system, hardware, firmware.
* Add host to SCSI
*/
err = scsi_add_host(lp->host, &pdev->dev);
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"fnic: scsi_add_host failed...exiting\n");
goto err_out_free_rq_buf;
}
/* Start local port initiatialization */
lp->link_up = 0;
lp->max_retry_count = fnic->config.flogi_retries;
lp->max_rport_retry_count = fnic->config.plogi_retries;
lp->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
FCP_SPPF_CONF_COMPL);
if (fnic->config.flags & VFCF_FCP_SEQ_LVL_ERR)
lp->service_params |= FCP_SPPF_RETRY;
lp->boot_time = jiffies;
lp->e_d_tov = fnic->config.ed_tov;
lp->r_a_tov = fnic->config.ra_tov;
lp->link_supported_speeds = FC_PORTSPEED_10GBIT;
fc_set_wwnn(lp, fnic->config.node_wwn);
fc_set_wwpn(lp, fnic->config.port_wwn);
fcoe_libfc_config(lp, &fnic->ctlr, &fnic_transport_template, 0);
if (!fc_exch_mgr_alloc(lp, FC_CLASS_3, FCPIO_HOST_EXCH_RANGE_START,
FCPIO_HOST_EXCH_RANGE_END, NULL)) {
err = -ENOMEM;
goto err_out_remove_scsi_host;
}
fc_lport_init_stats(lp);
fnic->stats_reset_time = jiffies;
fc_lport_config(lp);
if (fc_set_mfs(lp, fnic->config.maxdatafieldsize +
sizeof(struct fc_frame_header))) {
err = -EINVAL;
goto err_out_free_exch_mgr;
}
fc_host_maxframe_size(lp->host) = lp->mfs;
fc_host_dev_loss_tmo(lp->host) = fnic->config.port_down_timeout / 1000;
sprintf(fc_host_symbolic_name(lp->host),
DRV_NAME " v" DRV_VERSION " over %s", fnic->name);
spin_lock_irqsave(&fnic_list_lock, flags);
list_add_tail(&fnic->list, &fnic_list);
spin_unlock_irqrestore(&fnic_list_lock, flags);
INIT_WORK(&fnic->link_work, fnic_handle_link);
INIT_WORK(&fnic->frame_work, fnic_handle_frame);
skb_queue_head_init(&fnic->frame_queue);
skb_queue_head_init(&fnic->tx_queue);
/* Enable all queues */
for (i = 0; i < fnic->raw_wq_count; i++)
vnic_wq_enable(&fnic->wq[i]);
for (i = 0; i < fnic->rq_count; i++)
vnic_rq_enable(&fnic->rq[i]);
for (i = 0; i < fnic->wq_copy_count; i++)
vnic_wq_copy_enable(&fnic->wq_copy[i]);
fc_fabric_login(lp);
vnic_dev_enable(fnic->vdev);
err = fnic_request_intr(fnic);
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"Unable to request irq.\n");
goto err_out_free_exch_mgr;
}
for (i = 0; i < fnic->intr_count; i++)
vnic_intr_unmask(&fnic->intr[i]);
fnic_notify_timer_start(fnic);
return 0;
err_out_free_exch_mgr:
fc_exch_mgr_free(lp);
err_out_remove_scsi_host:
fc_remove_host(lp->host);
scsi_remove_host(lp->host);
err_out_free_rq_buf:
for (i = 0; i < fnic->rq_count; i++)
vnic_rq_clean(&fnic->rq[i], fnic_free_rq_buf);
vnic_dev_notify_unset(fnic->vdev);
err_out_free_max_pool:
mempool_destroy(fnic->io_sgl_pool[FNIC_SGL_CACHE_MAX]);
err_out_free_dflt_pool:
mempool_destroy(fnic->io_sgl_pool[FNIC_SGL_CACHE_DFLT]);
err_out_free_ioreq_pool:
mempool_destroy(fnic->io_req_pool);
err_out_free_resources:
fnic_free_vnic_resources(fnic);
err_out_clear_intr:
fnic_clear_intr_mode(fnic);
err_out_dev_close:
vnic_dev_close(fnic->vdev);
err_out_vnic_unregister:
vnic_dev_unregister(fnic->vdev);
err_out_iounmap:
fnic_iounmap(fnic);
err_out_release_regions:
pci_release_regions(pdev);
err_out_disable_device:
pci_disable_device(pdev);
err_out_free_hba:
fnic_stats_debugfs_remove(fnic);
scsi_host_put(lp->host);
err_out:
return err;
}
/**
* fnic_get_mac() - get assigned data MAC address for FIP code.
* @lport: local port.
*/
static u8 *fnic_get_mac(struct fc_lport *lport)
{
struct fnic *fnic = lport_priv(lport);
return fnic->data_src_addr;
}
/*
* fcoe_sw_create - this function creates the fcoe interface
* @netdev: pointer the associated netdevice
*
* Creates fc_lport struct and scsi_host for lport, configures lport
* and starts fabric login.
*
* Returns : 0 on success
*/
static int fcoe_sw_create(struct net_device *netdev)
{
int rc;
struct fc_lport *lp = NULL;
struct fcoe_softc *fc;
struct Scsi_Host *shost;
BUG_ON(!netdev);
printk(KERN_DEBUG "fcoe_sw_create:interface on %s\n",
netdev->name);
lp = fcoe_hostlist_lookup(netdev);
if (lp)
return -EEXIST;
shost = fcoe_host_alloc(&fcoe_sw_shost_template,
sizeof(struct fcoe_softc));
if (!shost) {
FC_DBG("Could not allocate host structure\n");
return -ENOMEM;
}
lp = shost_priv(shost);
fc = lport_priv(lp);
/* configure fc_lport, e.g., em */
rc = fcoe_sw_lport_config(lp);
if (rc) {
FC_DBG("Could not configure lport\n");
goto out_host_put;
}
/* configure lport network properties */
rc = fcoe_sw_netdev_config(lp, netdev);
if (rc) {
FC_DBG("Could not configure netdev for lport\n");
goto out_host_put;
}
/* configure lport scsi host properties */
rc = fcoe_sw_shost_config(lp, shost, &netdev->dev);
if (rc) {
FC_DBG("Could not configure shost for lport\n");
goto out_host_put;
}
/* lport exch manager allocation */
rc = fcoe_sw_em_config(lp);
if (rc) {
FC_DBG("Could not configure em for lport\n");
goto out_host_put;
}
/* Initialize the library */
rc = fcoe_libfc_config(lp, &fcoe_sw_libfc_fcn_templ);
if (rc) {
FC_DBG("Could not configure libfc for lport!\n");
goto out_lp_destroy;
}
/* add to lports list */
fcoe_hostlist_add(lp);
lp->boot_time = jiffies;
fc_fabric_login(lp);
dev_hold(netdev);
return rc;
out_lp_destroy:
fc_exch_mgr_free(lp->emp); /* Free the EM */
out_host_put:
scsi_host_put(lp->host);
return rc;
}
/*
* fcoe_sw_netdev_config - sets up fcoe_softc for lport and network
* related properties
* @lp : ptr to the fc_lport
* @netdev : ptr to the associated netdevice struct
*
* Must be called after fcoe_sw_lport_config() as it will use lport mutex
*
* Returns : 0 for success
*
*/
static int fcoe_sw_netdev_config(struct fc_lport *lp, struct net_device *netdev)
{
u32 mfs;
u64 wwnn, wwpn;
struct fcoe_softc *fc;
u8 flogi_maddr[ETH_ALEN];
/* Setup lport private data to point to fcoe softc */
fc = lport_priv(lp);
fc->lp = lp;
fc->real_dev = netdev;
fc->phys_dev = netdev;
/* Require support for get_pauseparam ethtool op. */
if (netdev->priv_flags & IFF_802_1Q_VLAN)
fc->phys_dev = vlan_dev_real_dev(netdev);
/* Do not support for bonding device */
if ((fc->real_dev->priv_flags & IFF_MASTER_ALB) ||
(fc->real_dev->priv_flags & IFF_SLAVE_INACTIVE) ||
(fc->real_dev->priv_flags & IFF_MASTER_8023AD)) {
return -EOPNOTSUPP;
}
/*
* Determine max frame size based on underlying device and optional
* user-configured limit. If the MFS is too low, fcoe_link_ok()
* will return 0, so do this first.
*/
mfs = fc->real_dev->mtu - (sizeof(struct fcoe_hdr) +
sizeof(struct fcoe_crc_eof));
if (fc_set_mfs(lp, mfs))
return -EINVAL;
lp->link_status = ~FC_PAUSE & ~FC_LINK_UP;
if (!fcoe_link_ok(lp))
lp->link_status |= FC_LINK_UP;
/* offload features support */
if (fc->real_dev->features & NETIF_F_SG)
lp->sg_supp = 1;
skb_queue_head_init(&fc->fcoe_pending_queue);
/* setup Source Mac Address */
memcpy(fc->ctl_src_addr, fc->real_dev->dev_addr,
fc->real_dev->addr_len);
wwnn = fcoe_wwn_from_mac(fc->real_dev->dev_addr, 1, 0);
fc_set_wwnn(lp, wwnn);
/* XXX - 3rd arg needs to be vlan id */
wwpn = fcoe_wwn_from_mac(fc->real_dev->dev_addr, 2, 0);
fc_set_wwpn(lp, wwpn);
/*
* Add FCoE MAC address as second unicast MAC address
* or enter promiscuous mode if not capable of listening
* for multiple unicast MACs.
*/
rtnl_lock();
memcpy(flogi_maddr, (u8[6]) FC_FCOE_FLOGI_MAC, ETH_ALEN);
dev_unicast_add(fc->real_dev, flogi_maddr, ETH_ALEN);
rtnl_unlock();
/*
* setup the receive function from ethernet driver
* on the ethertype for the given device
*/
fc->fcoe_packet_type.func = fcoe_rcv;
fc->fcoe_packet_type.type = __constant_htons(ETH_P_FCOE);
fc->fcoe_packet_type.dev = fc->real_dev;
dev_add_pack(&fc->fcoe_packet_type);
return 0;
}
static int __devinit fnic_probe(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
struct Scsi_Host *host;
struct fc_lport *lp;
struct fnic *fnic;
mempool_t *pool;
int err;
int i;
unsigned long flags;
/*
* Allocate SCSI Host and set up association between host,
* local port, and fnic
*/
host = scsi_host_alloc(&fnic_host_template,
sizeof(struct fc_lport) + sizeof(struct fnic));
if (!host) {
printk(KERN_ERR PFX "Unable to alloc SCSI host\n");
err = -ENOMEM;
goto err_out;
}
lp = shost_priv(host);
lp->host = host;
fnic = lport_priv(lp);
fnic->lport = lp;
snprintf(fnic->name, sizeof(fnic->name) - 1, "%s%d", DRV_NAME,
host->host_no);
host->transportt = fnic_fc_transport;
err = scsi_init_shared_tag_map(host, FNIC_MAX_IO_REQ);
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"Unable to alloc shared tag map\n");
goto err_out_free_hba;
}
/* Setup PCI resources */
pci_set_drvdata(pdev, fnic);
fnic->pdev = pdev;
err = pci_enable_device(pdev);
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"Cannot enable PCI device, aborting.\n");
goto err_out_free_hba;
}
err = pci_request_regions(pdev, DRV_NAME);
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"Cannot enable PCI resources, aborting\n");
goto err_out_disable_device;
}
pci_set_master(pdev);
/* Query PCI controller on system for DMA addressing
* limitation for the device. Try 40-bit first, and
* fail to 32-bit.
*/
err = pci_set_dma_mask(pdev, DMA_BIT_MASK(40));
if (err) {
err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"No usable DMA configuration "
"aborting\n");
goto err_out_release_regions;
}
err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"Unable to obtain 32-bit DMA "
"for consistent allocations, aborting.\n");
goto err_out_release_regions;
}
} else {
err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(40));
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"Unable to obtain 40-bit DMA "
"for consistent allocations, aborting.\n");
goto err_out_release_regions;
}
}
/* Map vNIC resources from BAR0 */
if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
shost_printk(KERN_ERR, fnic->lport->host,
"BAR0 not memory-map'able, aborting.\n");
err = -ENODEV;
goto err_out_release_regions;
}
fnic->bar0.vaddr = pci_iomap(pdev, 0, 0);
fnic->bar0.bus_addr = pci_resource_start(pdev, 0);
fnic->bar0.len = pci_resource_len(pdev, 0);
if (!fnic->bar0.vaddr) {
shost_printk(KERN_ERR, fnic->lport->host,
"Cannot memory-map BAR0 res hdr, "
"aborting.\n");
err = -ENODEV;
goto err_out_release_regions;
}
fnic->vdev = vnic_dev_register(NULL, fnic, pdev, &fnic->bar0);
if (!fnic->vdev) {
shost_printk(KERN_ERR, fnic->lport->host,
"vNIC registration failed, "
"aborting.\n");
err = -ENODEV;
goto err_out_iounmap;
}
err = fnic_dev_wait(fnic->vdev, vnic_dev_open,
vnic_dev_open_done, 0);
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"vNIC dev open failed, aborting.\n");
goto err_out_vnic_unregister;
}
err = vnic_dev_init(fnic->vdev, 0);
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"vNIC dev init failed, aborting.\n");
goto err_out_dev_close;
}
err = vnic_dev_mac_addr(fnic->vdev, fnic->mac_addr);
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"vNIC get MAC addr failed \n");
goto err_out_dev_close;
}
/* Get vNIC configuration */
err = fnic_get_vnic_config(fnic);
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"Get vNIC configuration failed, "
"aborting.\n");
goto err_out_dev_close;
}
host->max_lun = fnic->config.luns_per_tgt;
host->max_id = FNIC_MAX_FCP_TARGET;
fnic_get_res_counts(fnic);
err = fnic_set_intr_mode(fnic);
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"Failed to set intr mode, "
"aborting.\n");
goto err_out_dev_close;
}
err = fnic_request_intr(fnic);
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"Unable to request irq.\n");
goto err_out_clear_intr;
}
err = fnic_alloc_vnic_resources(fnic);
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"Failed to alloc vNIC resources, "
"aborting.\n");
goto err_out_free_intr;
}
/* initialize all fnic locks */
spin_lock_init(&fnic->fnic_lock);
for (i = 0; i < FNIC_WQ_MAX; i++)
spin_lock_init(&fnic->wq_lock[i]);
for (i = 0; i < FNIC_WQ_COPY_MAX; i++) {
spin_lock_init(&fnic->wq_copy_lock[i]);
fnic->wq_copy_desc_low[i] = DESC_CLEAN_LOW_WATERMARK;
fnic->fw_ack_recd[i] = 0;
fnic->fw_ack_index[i] = -1;
}
for (i = 0; i < FNIC_IO_LOCKS; i++)
spin_lock_init(&fnic->io_req_lock[i]);
fnic->io_req_pool = mempool_create_slab_pool(2, fnic_io_req_cache);
if (!fnic->io_req_pool)
goto err_out_free_resources;
pool = mempool_create(2, fnic_alloc_slab_dma, mempool_free_slab,
fnic_sgl_cache[FNIC_SGL_CACHE_DFLT]);
if (!pool)
goto err_out_free_ioreq_pool;
fnic->io_sgl_pool[FNIC_SGL_CACHE_DFLT] = pool;
pool = mempool_create(2, fnic_alloc_slab_dma, mempool_free_slab,
fnic_sgl_cache[FNIC_SGL_CACHE_MAX]);
if (!pool)
goto err_out_free_dflt_pool;
fnic->io_sgl_pool[FNIC_SGL_CACHE_MAX] = pool;
/* setup vlan config, hw inserts vlan header */
fnic->vlan_hw_insert = 1;
fnic->vlan_id = 0;
fnic->flogi_oxid = FC_XID_UNKNOWN;
fnic->flogi = NULL;
fnic->flogi_resp = NULL;
fnic->state = FNIC_IN_FC_MODE;
/* Enable hardware stripping of vlan header on ingress */
fnic_set_nic_config(fnic, 0, 0, 0, 0, 0, 0, 1);
/* Setup notification buffer area */
err = fnic_notify_set(fnic);
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"Failed to alloc notify buffer, aborting.\n");
goto err_out_free_max_pool;
}
/* Setup notify timer when using MSI interrupts */
if (vnic_dev_get_intr_mode(fnic->vdev) == VNIC_DEV_INTR_MODE_MSI)
setup_timer(&fnic->notify_timer,
fnic_notify_timer, (unsigned long)fnic);
/* allocate RQ buffers and post them to RQ*/
for (i = 0; i < fnic->rq_count; i++) {
err = vnic_rq_fill(&fnic->rq[i], fnic_alloc_rq_frame);
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"fnic_alloc_rq_frame can't alloc "
"frame\n");
goto err_out_free_rq_buf;
}
}
/*
* Initialization done with PCI system, hardware, firmware.
* Add host to SCSI
*/
err = scsi_add_host(lp->host, &pdev->dev);
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
"fnic: scsi_add_host failed...exiting\n");
goto err_out_free_rq_buf;
}
/* Start local port initiatialization */
lp->link_up = 0;
lp->tt = fnic_transport_template;
lp->emp = fc_exch_mgr_alloc(lp, FC_CLASS_3,
FCPIO_HOST_EXCH_RANGE_START,
FCPIO_HOST_EXCH_RANGE_END);
if (!lp->emp) {
err = -ENOMEM;
goto err_out_remove_scsi_host;
}
lp->max_retry_count = fnic->config.flogi_retries;
lp->max_rport_retry_count = fnic->config.plogi_retries;
lp->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
FCP_SPPF_CONF_COMPL);
if (fnic->config.flags & VFCF_FCP_SEQ_LVL_ERR)
lp->service_params |= FCP_SPPF_RETRY;
lp->boot_time = jiffies;
lp->e_d_tov = fnic->config.ed_tov;
lp->r_a_tov = fnic->config.ra_tov;
lp->link_supported_speeds = FC_PORTSPEED_10GBIT;
fc_set_wwnn(lp, fnic->config.node_wwn);
fc_set_wwpn(lp, fnic->config.port_wwn);
fc_exch_init(lp);
fc_lport_init(lp);
fc_elsct_init(lp);
fc_rport_init(lp);
fc_disc_init(lp);
fc_lport_config(lp);
if (fc_set_mfs(lp, fnic->config.maxdatafieldsize +
sizeof(struct fc_frame_header))) {
err = -EINVAL;
goto err_out_free_exch_mgr;
}
fc_host_maxframe_size(lp->host) = lp->mfs;
sprintf(fc_host_symbolic_name(lp->host),
DRV_NAME " v" DRV_VERSION " over %s", fnic->name);
spin_lock_irqsave(&fnic_list_lock, flags);
list_add_tail(&fnic->list, &fnic_list);
spin_unlock_irqrestore(&fnic_list_lock, flags);
INIT_WORK(&fnic->link_work, fnic_handle_link);
INIT_WORK(&fnic->frame_work, fnic_handle_frame);
skb_queue_head_init(&fnic->frame_queue);
/* Enable all queues */
for (i = 0; i < fnic->raw_wq_count; i++)
vnic_wq_enable(&fnic->wq[i]);
for (i = 0; i < fnic->rq_count; i++)
vnic_rq_enable(&fnic->rq[i]);
for (i = 0; i < fnic->wq_copy_count; i++)
vnic_wq_copy_enable(&fnic->wq_copy[i]);
fc_fabric_login(lp);
vnic_dev_enable(fnic->vdev);
for (i = 0; i < fnic->intr_count; i++)
vnic_intr_unmask(&fnic->intr[i]);
fnic_notify_timer_start(fnic);
return 0;
err_out_free_exch_mgr:
fc_exch_mgr_free(lp->emp);
err_out_remove_scsi_host:
fc_remove_host(fnic->lport->host);
scsi_remove_host(fnic->lport->host);
err_out_free_rq_buf:
for (i = 0; i < fnic->rq_count; i++)
vnic_rq_clean(&fnic->rq[i], fnic_free_rq_buf);
vnic_dev_notify_unset(fnic->vdev);
err_out_free_max_pool:
mempool_destroy(fnic->io_sgl_pool[FNIC_SGL_CACHE_MAX]);
err_out_free_dflt_pool:
mempool_destroy(fnic->io_sgl_pool[FNIC_SGL_CACHE_DFLT]);
err_out_free_ioreq_pool:
mempool_destroy(fnic->io_req_pool);
err_out_free_resources:
fnic_free_vnic_resources(fnic);
err_out_free_intr:
fnic_free_intr(fnic);
err_out_clear_intr:
fnic_clear_intr_mode(fnic);
err_out_dev_close:
vnic_dev_close(fnic->vdev);
err_out_vnic_unregister:
vnic_dev_unregister(fnic->vdev);
err_out_iounmap:
fnic_iounmap(fnic);
err_out_release_regions:
pci_release_regions(pdev);
err_out_disable_device:
pci_disable_device(pdev);
err_out_free_hba:
scsi_host_put(lp->host);
err_out:
return err;
}
/*
* fnic_send
* Routine to send a raw frame
*/
int fnic_send(struct fc_lport *lp, struct fc_frame *fp)
{
struct fnic *fnic = lport_priv(lp);
struct fc_frame_header *fh;
int ret = 0;
enum fnic_state old_state;
unsigned long flags;
struct fc_frame *old_flogi = NULL;
struct fc_frame *old_flogi_resp = NULL;
if (fnic->in_remove) {
dev_kfree_skb(fp_skb(fp));
ret = -1;
goto fnic_send_end;
}
fh = fc_frame_header_get(fp);
/* if not an Flogi frame, send it out, this is the common case */
if (!is_flogi_frame(fh))
return fnic_send_frame(fnic, fp);
/* Flogi frame, now enter the state machine */
spin_lock_irqsave(&fnic->fnic_lock, flags);
again:
/* Get any old cached frames, free them after dropping lock */
old_flogi = fnic->flogi;
fnic->flogi = NULL;
old_flogi_resp = fnic->flogi_resp;
fnic->flogi_resp = NULL;
fnic->flogi_oxid = FC_XID_UNKNOWN;
old_state = fnic->state;
switch (old_state) {
case FNIC_IN_FC_MODE:
case FNIC_IN_ETH_TRANS_FC_MODE:
default:
fnic->state = FNIC_IN_FC_TRANS_ETH_MODE;
vnic_dev_del_addr(fnic->vdev, fnic->data_src_addr);
spin_unlock_irqrestore(&fnic->fnic_lock, flags);
if (old_flogi) {
dev_kfree_skb(fp_skb(old_flogi));
old_flogi = NULL;
}
if (old_flogi_resp) {
dev_kfree_skb(fp_skb(old_flogi_resp));
old_flogi_resp = NULL;
}
ret = fnic_fw_reset_handler(fnic);
spin_lock_irqsave(&fnic->fnic_lock, flags);
if (fnic->state != FNIC_IN_FC_TRANS_ETH_MODE)
goto again;
if (ret) {
fnic->state = old_state;
spin_unlock_irqrestore(&fnic->fnic_lock, flags);
dev_kfree_skb(fp_skb(fp));
goto fnic_send_end;
}
old_flogi = fnic->flogi;
fnic->flogi = fp;
fnic->flogi_oxid = ntohs(fh->fh_ox_id);
old_flogi_resp = fnic->flogi_resp;
fnic->flogi_resp = NULL;
spin_unlock_irqrestore(&fnic->fnic_lock, flags);
break;
case FNIC_IN_FC_TRANS_ETH_MODE:
/*
* A reset is pending with the firmware. Store the flogi
* and its oxid. The transition out of this state happens
* only when Firmware completes the reset, either with
* success or failed. If success, transition to
* FNIC_IN_ETH_MODE, if fail, then transition to
* FNIC_IN_FC_MODE
*/
fnic->flogi = fp;
fnic->flogi_oxid = ntohs(fh->fh_ox_id);
spin_unlock_irqrestore(&fnic->fnic_lock, flags);
break;
case FNIC_IN_ETH_MODE:
/*
* The fw/hw is already in eth mode. Store the oxid,
* and send the flogi frame out. The transition out of this
* state happens only we receive flogi response from the
* network, and the oxid matches the cached oxid when the
* flogi frame was sent out. If they match, then we issue
* a flogi_reg request and transition to state
* FNIC_IN_ETH_TRANS_FC_MODE
*/
fnic->flogi_oxid = ntohs(fh->fh_ox_id);
spin_unlock_irqrestore(&fnic->fnic_lock, flags);
ret = fnic_send_frame(fnic, fp);
break;
}
fnic_send_end:
if (old_flogi)
dev_kfree_skb(fp_skb(old_flogi));
if (old_flogi_resp)
dev_kfree_skb(fp_skb(old_flogi_resp));
return ret;
}
