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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-09-11 04:34:46 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-09-11 04:34:46 -0300
commit863981e96738983919de841ec669e157e6bdaeb0 (patch)
treed6d89a12e7eb8017837c057935a2271290907f76 /drivers/scsi/bnx2fc/bnx2fc_fcoe.c
parent8dec7c70575785729a6a9e6719a955e9c545bcab (diff)
Linux-libre 4.7.1-gnupck-4.7.1-gnu
Diffstat (limited to 'drivers/scsi/bnx2fc/bnx2fc_fcoe.c')
-rw-r--r--drivers/scsi/bnx2fc/bnx2fc_fcoe.c100
1 files changed, 99 insertions, 1 deletions
diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
index d7029ea5d..a18819939 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
@@ -107,6 +107,26 @@ MODULE_PARM_DESC(debug_logging,
"\t\t0x10 - fcoe L2 fame related logs.\n"
"\t\t0xff - LOG all messages.");
+uint bnx2fc_devloss_tmo;
+module_param_named(devloss_tmo, bnx2fc_devloss_tmo, uint, S_IRUGO);
+MODULE_PARM_DESC(devloss_tmo, " Change devloss_tmo for the remote ports "
+ "attached via bnx2fc.");
+
+uint bnx2fc_max_luns = BNX2FC_MAX_LUN;
+module_param_named(max_luns, bnx2fc_max_luns, uint, S_IRUGO);
+MODULE_PARM_DESC(max_luns, " Change the default max_lun per SCSI host. Default "
+ "0xffff.");
+
+uint bnx2fc_queue_depth;
+module_param_named(queue_depth, bnx2fc_queue_depth, uint, S_IRUGO);
+MODULE_PARM_DESC(queue_depth, " Change the default queue depth of SCSI devices "
+ "attached via bnx2fc.");
+
+uint bnx2fc_log_fka;
+module_param_named(log_fka, bnx2fc_log_fka, uint, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(log_fka, " Print message to kernel log when fcoe is "
+ "initiating a FIP keep alive when debug logging is enabled.");
+
static int bnx2fc_cpu_callback(struct notifier_block *nfb,
unsigned long action, void *hcpu);
/* notification function for CPU hotplug events */
@@ -692,7 +712,7 @@ static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev)
int rc = 0;
shost->max_cmd_len = BNX2FC_MAX_CMD_LEN;
- shost->max_lun = BNX2FC_MAX_LUN;
+ shost->max_lun = bnx2fc_max_luns;
shost->max_id = BNX2FC_MAX_FCP_TGT;
shost->max_channel = 0;
if (lport->vport)
@@ -1061,6 +1081,20 @@ static u8 *bnx2fc_get_src_mac(struct fc_lport *lport)
*/
static void bnx2fc_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb)
{
+ struct fip_header *fiph;
+ struct ethhdr *eth_hdr;
+ u16 op;
+ u8 sub;
+
+ fiph = (struct fip_header *) ((void *)skb->data + 2 * ETH_ALEN + 2);
+ eth_hdr = (struct ethhdr *)skb_mac_header(skb);
+ op = ntohs(fiph->fip_op);
+ sub = fiph->fip_subcode;
+
+ if (op == FIP_OP_CTRL && sub == FIP_SC_SOL && bnx2fc_log_fka)
+ BNX2FC_MISC_DBG("Sending FKA from %pM to %pM.\n",
+ eth_hdr->h_source, eth_hdr->h_dest);
+
skb->dev = bnx2fc_from_ctlr(fip)->netdev;
dev_queue_xmit(skb);
}
@@ -1102,6 +1136,9 @@ static int bnx2fc_vport_create(struct fc_vport *vport, bool disabled)
return -EIO;
}
+ if (bnx2fc_devloss_tmo)
+ fc_host_dev_loss_tmo(vn_port->host) = bnx2fc_devloss_tmo;
+
if (disabled) {
fc_vport_set_state(vport, FC_VPORT_DISABLED);
} else {
@@ -1495,6 +1532,9 @@ static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface,
}
fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
+ if (bnx2fc_devloss_tmo)
+ fc_host_dev_loss_tmo(shost) = bnx2fc_devloss_tmo;
+
/* Allocate exchange manager */
if (!npiv)
rc = bnx2fc_em_config(lport, hba);
@@ -1999,6 +2039,8 @@ static void bnx2fc_ulp_init(struct cnic_dev *dev)
return;
}
+ pr_info(PFX "FCoE initialized for %s.\n", dev->netdev->name);
+
/* Add HBA to the adapter list */
mutex_lock(&bnx2fc_dev_lock);
list_add_tail(&hba->list, &adapter_list);
@@ -2293,6 +2335,7 @@ static int _bnx2fc_create(struct net_device *netdev,
ctlr = bnx2fc_to_ctlr(interface);
cdev = fcoe_ctlr_to_ctlr_dev(ctlr);
interface->vlan_id = vlan_id;
+ interface->tm_timeout = BNX2FC_TM_TIMEOUT;
interface->timer_work_queue =
create_singlethread_workqueue("bnx2fc_timer_wq");
@@ -2612,6 +2655,15 @@ static int bnx2fc_cpu_callback(struct notifier_block *nfb,
return NOTIFY_OK;
}
+static int bnx2fc_slave_configure(struct scsi_device *sdev)
+{
+ if (!bnx2fc_queue_depth)
+ return 0;
+
+ scsi_change_queue_depth(sdev, bnx2fc_queue_depth);
+ return 0;
+}
+
/**
* bnx2fc_mod_init - module init entry point
*
@@ -2858,6 +2910,50 @@ static struct fc_function_template bnx2fc_vport_xport_function = {
.bsg_request = fc_lport_bsg_request,
};
+/*
+ * Additional scsi_host attributes.
+ */
+static ssize_t
+bnx2fc_tm_timeout_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct Scsi_Host *shost = class_to_shost(dev);
+ struct fc_lport *lport = shost_priv(shost);
+ struct fcoe_port *port = lport_priv(lport);
+ struct bnx2fc_interface *interface = port->priv;
+
+ sprintf(buf, "%u\n", interface->tm_timeout);
+ return strlen(buf);
+}
+
+static ssize_t
+bnx2fc_tm_timeout_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct Scsi_Host *shost = class_to_shost(dev);
+ struct fc_lport *lport = shost_priv(shost);
+ struct fcoe_port *port = lport_priv(lport);
+ struct bnx2fc_interface *interface = port->priv;
+ int rval, val;
+
+ rval = kstrtouint(buf, 10, &val);
+ if (rval)
+ return rval;
+ if (val > 255)
+ return -ERANGE;
+
+ interface->tm_timeout = (u8)val;
+ return strlen(buf);
+}
+
+static DEVICE_ATTR(tm_timeout, S_IRUGO|S_IWUSR, bnx2fc_tm_timeout_show,
+ bnx2fc_tm_timeout_store);
+
+static struct device_attribute *bnx2fc_host_attrs[] = {
+ &dev_attr_tm_timeout,
+ NULL,
+};
+
/**
* scsi_host_template structure used while registering with SCSI-ml
*/
@@ -2877,6 +2973,8 @@ static struct scsi_host_template bnx2fc_shost_template = {
.sg_tablesize = BNX2FC_MAX_BDS_PER_CMD,
.max_sectors = 1024,
.track_queue_depth = 1,
+ .slave_configure = bnx2fc_slave_configure,
+ .shost_attrs = bnx2fc_host_attrs,
};
static struct libfc_function_template bnx2fc_libfc_fcn_templ = {