MODULE_PARM_DESC(fnic_trace_max_pages, "Total allocated memory pages "
"for fnic trace buffer");
+static unsigned int fnic_max_qdepth = FNIC_DFLT_QUEUE_DEPTH;
+module_param(fnic_max_qdepth, uint, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(fnic_max_qdepth, "Queue depth to report for each LUN");
+
static struct libfc_function_template fnic_transport_template = {
.frame_send = fnic_send,
.lport_set_port_id = fnic_set_port_id,
if (!rport || fc_remote_port_chkready(rport))
return -ENXIO;
- scsi_activate_tcq(sdev, FNIC_DFLT_QUEUE_DEPTH);
+ scsi_activate_tcq(sdev, fnic_max_qdepth);
return 0;
}
static void fnic_get_host_speed(struct Scsi_Host *shost);
static struct scsi_transport_template *fnic_fc_transport;
static struct fc_host_statistics *fnic_get_stats(struct Scsi_Host *);
+static void fnic_reset_host_stats(struct Scsi_Host *);
static struct fc_function_template fnic_fc_functions = {
.set_rport_dev_loss_tmo = fnic_set_rport_dev_loss_tmo,
.issue_fc_host_lip = fnic_reset,
.get_fc_host_stats = fnic_get_stats,
+ .reset_fc_host_stats = fnic_reset_host_stats,
.dd_fcrport_size = sizeof(struct fc_rport_libfc_priv),
.terminate_rport_io = fnic_terminate_rport_io,
.bsg_request = fc_lport_bsg_request,
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 - lp->boot_time) / HZ;
+ 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;
}
+/*
+ * fnic_dump_fchost_stats
+ * note : dumps fc_statistics into system logs
+ */
+void fnic_dump_fchost_stats(struct Scsi_Host *host,
+ struct fc_host_statistics *stats)
+{
+ FNIC_MAIN_NOTE(KERN_NOTICE, host,
+ "fnic: seconds since last reset = %llu\n",
+ stats->seconds_since_last_reset);
+ FNIC_MAIN_NOTE(KERN_NOTICE, host,
+ "fnic: tx frames = %llu\n",
+ stats->tx_frames);
+ FNIC_MAIN_NOTE(KERN_NOTICE, host,
+ "fnic: tx words = %llu\n",
+ stats->tx_words);
+ FNIC_MAIN_NOTE(KERN_NOTICE, host,
+ "fnic: rx frames = %llu\n",
+ stats->rx_frames);
+ FNIC_MAIN_NOTE(KERN_NOTICE, host,
+ "fnic: rx words = %llu\n",
+ stats->rx_words);
+ FNIC_MAIN_NOTE(KERN_NOTICE, host,
+ "fnic: lip count = %llu\n",
+ stats->lip_count);
+ FNIC_MAIN_NOTE(KERN_NOTICE, host,
+ "fnic: nos count = %llu\n",
+ stats->nos_count);
+ FNIC_MAIN_NOTE(KERN_NOTICE, host,
+ "fnic: error frames = %llu\n",
+ stats->error_frames);
+ FNIC_MAIN_NOTE(KERN_NOTICE, host,
+ "fnic: dumped frames = %llu\n",
+ stats->dumped_frames);
+ FNIC_MAIN_NOTE(KERN_NOTICE, host,
+ "fnic: link failure count = %llu\n",
+ stats->link_failure_count);
+ FNIC_MAIN_NOTE(KERN_NOTICE, host,
+ "fnic: loss of sync count = %llu\n",
+ stats->loss_of_sync_count);
+ FNIC_MAIN_NOTE(KERN_NOTICE, host,
+ "fnic: loss of signal count = %llu\n",
+ stats->loss_of_signal_count);
+ FNIC_MAIN_NOTE(KERN_NOTICE, host,
+ "fnic: prim seq protocol err count = %llu\n",
+ stats->prim_seq_protocol_err_count);
+ FNIC_MAIN_NOTE(KERN_NOTICE, host,
+ "fnic: invalid tx word count= %llu\n",
+ stats->invalid_tx_word_count);
+ FNIC_MAIN_NOTE(KERN_NOTICE, host,
+ "fnic: invalid crc count = %llu\n",
+ stats->invalid_crc_count);
+ FNIC_MAIN_NOTE(KERN_NOTICE, host,
+ "fnic: fcp input requests = %llu\n",
+ stats->fcp_input_requests);
+ FNIC_MAIN_NOTE(KERN_NOTICE, host,
+ "fnic: fcp output requests = %llu\n",
+ stats->fcp_output_requests);
+ FNIC_MAIN_NOTE(KERN_NOTICE, host,
+ "fnic: fcp control requests = %llu\n",
+ stats->fcp_control_requests);
+ FNIC_MAIN_NOTE(KERN_NOTICE, host,
+ "fnic: fcp input megabytes = %llu\n",
+ stats->fcp_input_megabytes);
+ FNIC_MAIN_NOTE(KERN_NOTICE, host,
+ "fnic: fcp output megabytes = %llu\n",
+ stats->fcp_output_megabytes);
+ return;
+}
+
+/*
+ * fnic_reset_host_stats : clears host stats
+ * note : called when reset_statistics set under sysfs dir
+ */
+static void fnic_reset_host_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;
+ unsigned long flags;
+
+ /* dump current stats, before clearing them */
+ stats = fnic_get_stats(host);
+ fnic_dump_fchost_stats(host, stats);
+
+ spin_lock_irqsave(&fnic->fnic_lock, flags);
+ ret = vnic_dev_stats_clear(fnic->vdev);
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+
+ if (ret) {
+ FNIC_MAIN_DBG(KERN_DEBUG, fnic->lport->host,
+ "fnic: Reset vnic stats failed"
+ " 0x%x", ret);
+ return;
+ }
+ fnic->stats_reset_time = jiffies;
+ memset(stats, 0, sizeof(*stats));
+
+ return;
+}
+
void fnic_log_q_error(struct fnic *fnic)
{
unsigned int i;
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);
pci_set_master(pdev);
/* Query PCI controller on system for DMA addressing
- * limitation for the device. Try 40-bit first, and
+ * limitation for the device. Try 64-bit first, and
* fail to 32-bit.
*/
- err = pci_set_dma_mask(pdev, DMA_BIT_MASK(40));
+ err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
if (err) {
err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
if (err) {
goto err_out_release_regions;
}
} else {
- err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(40));
+ err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
if (err) {
shost_printk(KERN_ERR, fnic->lport->host,
- "Unable to obtain 40-bit DMA "
+ "Unable to obtain 64-bit DMA "
"for consistent allocations, aborting.\n");
goto err_out_release_regions;
}
"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;
}
fc_lport_init_stats(lp);
+ fnic->stats_reset_time = jiffies;
fc_lport_config(lp);
projects / karo-tx-linux.git / blobdiff