1// SPDX-License-Identifier: GPL-2.0
   2/* Copyright(c) 2013 - 2018 Intel Corporation. */
   3
   4#ifdef CONFIG_DEBUG_FS
   5
   6#include <linux/fs.h>
   7#include <linux/debugfs.h>
   8#include <linux/if_bridge.h>
   9#include "i40e.h"
  10#include "i40e_virtchnl_pf.h"
  11
  12static struct dentry *i40e_dbg_root;
  13
  14enum ring_type {
  15	RING_TYPE_RX,
  16	RING_TYPE_TX,
  17	RING_TYPE_XDP
  18};
  19
  20/**
  21 * i40e_dbg_find_vsi - searches for the vsi with the given seid
  22 * @pf: the PF structure to search for the vsi
  23 * @seid: seid of the vsi it is searching for
  24 **/
  25static struct i40e_vsi *i40e_dbg_find_vsi(struct i40e_pf *pf, int seid)
  26{
  27	if (seid < 0) {
 
 
  28		dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
 
 
 
 
  29
  30		return NULL;
  31	}
 
 
 
 
 
 
 
 
 
  32
  33	return i40e_pf_get_vsi_by_seid(pf, seid);
 
 
 
  34}
  35
  36/**************************************************************
  37 * command
  38 * The command entry in debugfs is for giving the driver commands
  39 * to be executed - these may be for changing the internal switch
  40 * setup, adding or removing filters, or other things.  Many of
  41 * these will be useful for some forms of unit testing.
  42 **************************************************************/
  43static char i40e_dbg_command_buf[256] = "";
  44
  45/**
  46 * i40e_dbg_command_read - read for command datum
  47 * @filp: the opened file
  48 * @buffer: where to write the data for the user to read
  49 * @count: the size of the user's buffer
  50 * @ppos: file position offset
  51 **/
  52static ssize_t i40e_dbg_command_read(struct file *filp, char __user *buffer,
  53				     size_t count, loff_t *ppos)
  54{
  55	struct i40e_pf *pf = filp->private_data;
  56	int bytes_not_copied;
  57	int buf_size = 256;
  58	char *buf;
  59	int len;
  60
  61	/* don't allow partial reads */
  62	if (*ppos != 0)
  63		return 0;
  64	if (count < buf_size)
  65		return -ENOSPC;
  66
  67	buf = kzalloc(buf_size, GFP_KERNEL);
  68	if (!buf)
  69		return -ENOSPC;
  70
  71	len = snprintf(buf, buf_size, "%s: %s\n",
  72		       pf->vsi[pf->lan_vsi]->netdev->name,
  73		       i40e_dbg_command_buf);
  74
  75	bytes_not_copied = copy_to_user(buffer, buf, len);
  76	kfree(buf);
  77
  78	if (bytes_not_copied)
  79		return -EFAULT;
  80
  81	*ppos = len;
  82	return len;
  83}
  84
  85static char *i40e_filter_state_string[] = {
  86	"INVALID",
  87	"NEW",
  88	"ACTIVE",
  89	"FAILED",
  90	"REMOVE",
  91};
  92
  93/**
  94 * i40e_dbg_dump_vsi_seid - handles dump vsi seid write into command datum
  95 * @pf: the i40e_pf created in command write
  96 * @seid: the seid the user put in
  97 **/
  98static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid)
  99{
 100	struct rtnl_link_stats64 *nstat;
 101	struct i40e_mac_filter *f;
 102	struct i40e_vsi *vsi;
 103	int i, bkt;
 104
 105	vsi = i40e_dbg_find_vsi(pf, seid);
 106	if (!vsi) {
 107		dev_info(&pf->pdev->dev,
 108			 "dump %d: seid not found\n", seid);
 109		return;
 110	}
 111	dev_info(&pf->pdev->dev, "vsi seid %d\n", seid);
 112	if (vsi->netdev) {
 113		struct net_device *nd = vsi->netdev;
 114
 115		dev_info(&pf->pdev->dev, "    netdev: name = %s, state = %lu, flags = 0x%08x\n",
 116			 nd->name, nd->state, nd->flags);
 117		dev_info(&pf->pdev->dev, "        features      = 0x%08lx\n",
 118			 (unsigned long int)nd->features);
 119		dev_info(&pf->pdev->dev, "        hw_features   = 0x%08lx\n",
 120			 (unsigned long int)nd->hw_features);
 121		dev_info(&pf->pdev->dev, "        vlan_features = 0x%08lx\n",
 122			 (unsigned long int)nd->vlan_features);
 123	}
 124	dev_info(&pf->pdev->dev,
 125		 "    flags = 0x%08lx, netdev_registered = %i, current_netdev_flags = 0x%04x\n",
 126		 vsi->flags, vsi->netdev_registered, vsi->current_netdev_flags);
 127	for (i = 0; i < BITS_TO_LONGS(__I40E_VSI_STATE_SIZE__); i++)
 128		dev_info(&pf->pdev->dev,
 129			 "    state[%d] = %08lx\n",
 130			 i, vsi->state[i]);
 131	if (vsi == pf->vsi[pf->lan_vsi])
 132		dev_info(&pf->pdev->dev, "    MAC address: %pM Port MAC: %pM\n",
 133			 pf->hw.mac.addr,
 
 134			 pf->hw.mac.port_addr);
 135	hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
 136		dev_info(&pf->pdev->dev,
 137			 "    mac_filter_hash: %pM vid=%d, state %s\n",
 138			 f->macaddr, f->vlan,
 139			 i40e_filter_state_string[f->state]);
 140	}
 141	dev_info(&pf->pdev->dev, "    active_filters %u, promisc_threshold %u, overflow promisc %s\n",
 142		 vsi->active_filters, vsi->promisc_threshold,
 143		 (test_bit(__I40E_VSI_OVERFLOW_PROMISC, vsi->state) ?
 144		  "ON" : "OFF"));
 145	nstat = i40e_get_vsi_stats_struct(vsi);
 146	dev_info(&pf->pdev->dev,
 147		 "    net_stats: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
 148		 (unsigned long int)nstat->rx_packets,
 149		 (unsigned long int)nstat->rx_bytes,
 150		 (unsigned long int)nstat->rx_errors,
 151		 (unsigned long int)nstat->rx_dropped);
 152	dev_info(&pf->pdev->dev,
 153		 "    net_stats: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
 154		 (unsigned long int)nstat->tx_packets,
 155		 (unsigned long int)nstat->tx_bytes,
 156		 (unsigned long int)nstat->tx_errors,
 157		 (unsigned long int)nstat->tx_dropped);
 158	dev_info(&pf->pdev->dev,
 159		 "    net_stats: multicast = %lu, collisions = %lu\n",
 160		 (unsigned long int)nstat->multicast,
 161		 (unsigned long int)nstat->collisions);
 162	dev_info(&pf->pdev->dev,
 163		 "    net_stats: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
 164		 (unsigned long int)nstat->rx_length_errors,
 165		 (unsigned long int)nstat->rx_over_errors,
 166		 (unsigned long int)nstat->rx_crc_errors);
 167	dev_info(&pf->pdev->dev,
 168		 "    net_stats: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
 169		 (unsigned long int)nstat->rx_frame_errors,
 170		 (unsigned long int)nstat->rx_fifo_errors,
 171		 (unsigned long int)nstat->rx_missed_errors);
 172	dev_info(&pf->pdev->dev,
 173		 "    net_stats: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
 174		 (unsigned long int)nstat->tx_aborted_errors,
 175		 (unsigned long int)nstat->tx_carrier_errors,
 176		 (unsigned long int)nstat->tx_fifo_errors);
 177	dev_info(&pf->pdev->dev,
 178		 "    net_stats: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
 179		 (unsigned long int)nstat->tx_heartbeat_errors,
 180		 (unsigned long int)nstat->tx_window_errors);
 181	dev_info(&pf->pdev->dev,
 182		 "    net_stats: rx_compressed = %lu, tx_compressed = %lu\n",
 183		 (unsigned long int)nstat->rx_compressed,
 184		 (unsigned long int)nstat->tx_compressed);
 185	dev_info(&pf->pdev->dev,
 186		 "    net_stats_offsets: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
 187		 (unsigned long int)vsi->net_stats_offsets.rx_packets,
 188		 (unsigned long int)vsi->net_stats_offsets.rx_bytes,
 189		 (unsigned long int)vsi->net_stats_offsets.rx_errors,
 190		 (unsigned long int)vsi->net_stats_offsets.rx_dropped);
 191	dev_info(&pf->pdev->dev,
 192		 "    net_stats_offsets: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
 193		 (unsigned long int)vsi->net_stats_offsets.tx_packets,
 194		 (unsigned long int)vsi->net_stats_offsets.tx_bytes,
 195		 (unsigned long int)vsi->net_stats_offsets.tx_errors,
 196		 (unsigned long int)vsi->net_stats_offsets.tx_dropped);
 197	dev_info(&pf->pdev->dev,
 198		 "    net_stats_offsets: multicast = %lu, collisions = %lu\n",
 199		 (unsigned long int)vsi->net_stats_offsets.multicast,
 200		 (unsigned long int)vsi->net_stats_offsets.collisions);
 201	dev_info(&pf->pdev->dev,
 202		 "    net_stats_offsets: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
 203		 (unsigned long int)vsi->net_stats_offsets.rx_length_errors,
 204		 (unsigned long int)vsi->net_stats_offsets.rx_over_errors,
 205		 (unsigned long int)vsi->net_stats_offsets.rx_crc_errors);
 206	dev_info(&pf->pdev->dev,
 207		 "    net_stats_offsets: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
 208		 (unsigned long int)vsi->net_stats_offsets.rx_frame_errors,
 209		 (unsigned long int)vsi->net_stats_offsets.rx_fifo_errors,
 210		 (unsigned long int)vsi->net_stats_offsets.rx_missed_errors);
 211	dev_info(&pf->pdev->dev,
 212		 "    net_stats_offsets: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
 213		 (unsigned long int)vsi->net_stats_offsets.tx_aborted_errors,
 214		 (unsigned long int)vsi->net_stats_offsets.tx_carrier_errors,
 215		 (unsigned long int)vsi->net_stats_offsets.tx_fifo_errors);
 216	dev_info(&pf->pdev->dev,
 217		 "    net_stats_offsets: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
 218		 (unsigned long int)vsi->net_stats_offsets.tx_heartbeat_errors,
 219		 (unsigned long int)vsi->net_stats_offsets.tx_window_errors);
 220	dev_info(&pf->pdev->dev,
 221		 "    net_stats_offsets: rx_compressed = %lu, tx_compressed = %lu\n",
 222		 (unsigned long int)vsi->net_stats_offsets.rx_compressed,
 223		 (unsigned long int)vsi->net_stats_offsets.tx_compressed);
 224	dev_info(&pf->pdev->dev,
 225		 "    tx_restart = %llu, tx_busy = %llu, rx_buf_failed = %llu, rx_page_failed = %llu\n",
 226		 vsi->tx_restart, vsi->tx_busy,
 227		 vsi->rx_buf_failed, vsi->rx_page_failed);
 228	rcu_read_lock();
 229	for (i = 0; i < vsi->num_queue_pairs; i++) {
 230		struct i40e_ring *rx_ring = READ_ONCE(vsi->rx_rings[i]);
 231
 232		if (!rx_ring)
 233			continue;
 234
 235		dev_info(&pf->pdev->dev,
 236			 "    rx_rings[%i]: state = %lu, queue_index = %d, reg_idx = %d\n",
 237			 i, *rx_ring->state,
 238			 rx_ring->queue_index,
 239			 rx_ring->reg_idx);
 240		dev_info(&pf->pdev->dev,
 241			 "    rx_rings[%i]: rx_buf_len = %d\n",
 242			 i, rx_ring->rx_buf_len);
 243		dev_info(&pf->pdev->dev,
 244			 "    rx_rings[%i]: next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
 245			 i,
 246			 rx_ring->next_to_use,
 247			 rx_ring->next_to_clean,
 248			 rx_ring->ring_active);
 249		dev_info(&pf->pdev->dev,
 250			 "    rx_rings[%i]: rx_stats: packets = %lld, bytes = %lld, non_eop_descs = %lld\n",
 251			 i, rx_ring->stats.packets,
 252			 rx_ring->stats.bytes,
 253			 rx_ring->rx_stats.non_eop_descs);
 254		dev_info(&pf->pdev->dev,
 255			 "    rx_rings[%i]: rx_stats: alloc_page_failed = %lld, alloc_buff_failed = %lld\n",
 256			 i,
 257			 rx_ring->rx_stats.alloc_page_failed,
 258			 rx_ring->rx_stats.alloc_buff_failed);
 259		dev_info(&pf->pdev->dev,
 260			 "    rx_rings[%i]: rx_stats: realloc_count = 0, page_reuse_count = %lld\n",
 261			 i,
 
 262			 rx_ring->rx_stats.page_reuse_count);
 263		dev_info(&pf->pdev->dev,
 264			 "    rx_rings[%i]: size = %i\n",
 265			 i, rx_ring->size);
 266		dev_info(&pf->pdev->dev,
 267			 "    rx_rings[%i]: itr_setting = %d (%s)\n",
 268			 i, rx_ring->itr_setting,
 269			 ITR_IS_DYNAMIC(rx_ring->itr_setting) ? "dynamic" : "fixed");
 270	}
 271	for (i = 0; i < vsi->num_queue_pairs; i++) {
 272		struct i40e_ring *tx_ring = READ_ONCE(vsi->tx_rings[i]);
 273
 274		if (!tx_ring)
 275			continue;
 276
 277		dev_info(&pf->pdev->dev,
 278			 "    tx_rings[%i]: state = %lu, queue_index = %d, reg_idx = %d\n",
 279			 i, *tx_ring->state,
 280			 tx_ring->queue_index,
 281			 tx_ring->reg_idx);
 282		dev_info(&pf->pdev->dev,
 283			 "    tx_rings[%i]: next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
 284			 i,
 285			 tx_ring->next_to_use,
 286			 tx_ring->next_to_clean,
 287			 tx_ring->ring_active);
 288		dev_info(&pf->pdev->dev,
 289			 "    tx_rings[%i]: tx_stats: packets = %lld, bytes = %lld, restart_queue = %lld\n",
 290			 i, tx_ring->stats.packets,
 291			 tx_ring->stats.bytes,
 292			 tx_ring->tx_stats.restart_queue);
 293		dev_info(&pf->pdev->dev,
 294			 "    tx_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld, tx_stopped = %lld\n",
 295			 i,
 296			 tx_ring->tx_stats.tx_busy,
 297			 tx_ring->tx_stats.tx_done_old,
 298			 tx_ring->tx_stats.tx_stopped);
 299		dev_info(&pf->pdev->dev,
 300			 "    tx_rings[%i]: size = %i\n",
 301			 i, tx_ring->size);
 302		dev_info(&pf->pdev->dev,
 303			 "    tx_rings[%i]: DCB tc = %d\n",
 304			 i, tx_ring->dcb_tc);
 305		dev_info(&pf->pdev->dev,
 306			 "    tx_rings[%i]: itr_setting = %d (%s)\n",
 307			 i, tx_ring->itr_setting,
 308			 ITR_IS_DYNAMIC(tx_ring->itr_setting) ? "dynamic" : "fixed");
 309	}
 310	if (i40e_enabled_xdp_vsi(vsi)) {
 311		for (i = 0; i < vsi->num_queue_pairs; i++) {
 312			struct i40e_ring *xdp_ring = READ_ONCE(vsi->xdp_rings[i]);
 313
 314			if (!xdp_ring)
 315				continue;
 316
 317			dev_info(&pf->pdev->dev,
 318				 "    xdp_rings[%i]: state = %lu, queue_index = %d, reg_idx = %d\n",
 319				 i, *xdp_ring->state,
 320				 xdp_ring->queue_index,
 321				 xdp_ring->reg_idx);
 322			dev_info(&pf->pdev->dev,
 323				 "    xdp_rings[%i]: next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
 324				 i,
 325				 xdp_ring->next_to_use,
 326				 xdp_ring->next_to_clean,
 327				 xdp_ring->ring_active);
 328			dev_info(&pf->pdev->dev,
 329				 "    xdp_rings[%i]: tx_stats: packets = %lld, bytes = %lld, restart_queue = %lld\n",
 330				 i, xdp_ring->stats.packets,
 331				 xdp_ring->stats.bytes,
 332				 xdp_ring->tx_stats.restart_queue);
 333			dev_info(&pf->pdev->dev,
 334				 "    xdp_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld\n",
 335				 i,
 336				 xdp_ring->tx_stats.tx_busy,
 337				 xdp_ring->tx_stats.tx_done_old);
 338			dev_info(&pf->pdev->dev,
 339				 "    xdp_rings[%i]: size = %i\n",
 340				 i, xdp_ring->size);
 341			dev_info(&pf->pdev->dev,
 342				 "    xdp_rings[%i]: DCB tc = %d\n",
 343				 i, xdp_ring->dcb_tc);
 344			dev_info(&pf->pdev->dev,
 345				 "    xdp_rings[%i]: itr_setting = %d (%s)\n",
 346				 i, xdp_ring->itr_setting,
 347				 ITR_IS_DYNAMIC(xdp_ring->itr_setting) ?
 348				 "dynamic" : "fixed");
 349		}
 350	}
 351	rcu_read_unlock();
 352	dev_info(&pf->pdev->dev,
 353		 "    work_limit = %d\n",
 354		 vsi->work_limit);
 355	dev_info(&pf->pdev->dev,
 356		 "    max_frame = %d, rx_buf_len = %d dtype = %d\n",
 357		 vsi->max_frame, vsi->rx_buf_len, 0);
 358	dev_info(&pf->pdev->dev,
 359		 "    num_q_vectors = %i, base_vector = %i\n",
 360		 vsi->num_q_vectors, vsi->base_vector);
 361	dev_info(&pf->pdev->dev,
 362		 "    seid = %d, id = %d, uplink_seid = %d\n",
 363		 vsi->seid, vsi->id, vsi->uplink_seid);
 364	dev_info(&pf->pdev->dev,
 365		 "    base_queue = %d, num_queue_pairs = %d, num_tx_desc = %d, num_rx_desc = %d\n",
 366		 vsi->base_queue, vsi->num_queue_pairs, vsi->num_tx_desc,
 367		 vsi->num_rx_desc);
 368	dev_info(&pf->pdev->dev, "    type = %i\n", vsi->type);
 369	if (vsi->type == I40E_VSI_SRIOV)
 370		dev_info(&pf->pdev->dev, "    VF ID = %i\n", vsi->vf_id);
 371	dev_info(&pf->pdev->dev,
 372		 "    info: valid_sections = 0x%04x, switch_id = 0x%04x\n",
 373		 vsi->info.valid_sections, vsi->info.switch_id);
 374	dev_info(&pf->pdev->dev,
 375		 "    info: sw_reserved[] = 0x%02x 0x%02x\n",
 376		 vsi->info.sw_reserved[0], vsi->info.sw_reserved[1]);
 377	dev_info(&pf->pdev->dev,
 378		 "    info: sec_flags = 0x%02x, sec_reserved = 0x%02x\n",
 379		 vsi->info.sec_flags, vsi->info.sec_reserved);
 380	dev_info(&pf->pdev->dev,
 381		 "    info: pvid = 0x%04x, fcoe_pvid = 0x%04x, port_vlan_flags = 0x%02x\n",
 382		 vsi->info.pvid, vsi->info.fcoe_pvid,
 383		 vsi->info.port_vlan_flags);
 384	dev_info(&pf->pdev->dev,
 385		 "    info: pvlan_reserved[] = 0x%02x 0x%02x 0x%02x\n",
 386		 vsi->info.pvlan_reserved[0], vsi->info.pvlan_reserved[1],
 387		 vsi->info.pvlan_reserved[2]);
 388	dev_info(&pf->pdev->dev,
 389		 "    info: ingress_table = 0x%08x, egress_table = 0x%08x\n",
 390		 vsi->info.ingress_table, vsi->info.egress_table);
 391	dev_info(&pf->pdev->dev,
 392		 "    info: cas_pv_stag = 0x%04x, cas_pv_flags= 0x%02x, cas_pv_reserved = 0x%02x\n",
 393		 vsi->info.cas_pv_tag, vsi->info.cas_pv_flags,
 394		 vsi->info.cas_pv_reserved);
 395	dev_info(&pf->pdev->dev,
 396		 "    info: queue_mapping[0..7 ] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 397		 vsi->info.queue_mapping[0], vsi->info.queue_mapping[1],
 398		 vsi->info.queue_mapping[2], vsi->info.queue_mapping[3],
 399		 vsi->info.queue_mapping[4], vsi->info.queue_mapping[5],
 400		 vsi->info.queue_mapping[6], vsi->info.queue_mapping[7]);
 401	dev_info(&pf->pdev->dev,
 402		 "    info: queue_mapping[8..15] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 403		 vsi->info.queue_mapping[8], vsi->info.queue_mapping[9],
 404		 vsi->info.queue_mapping[10], vsi->info.queue_mapping[11],
 405		 vsi->info.queue_mapping[12], vsi->info.queue_mapping[13],
 406		 vsi->info.queue_mapping[14], vsi->info.queue_mapping[15]);
 407	dev_info(&pf->pdev->dev,
 408		 "    info: tc_mapping[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 409		 vsi->info.tc_mapping[0], vsi->info.tc_mapping[1],
 410		 vsi->info.tc_mapping[2], vsi->info.tc_mapping[3],
 411		 vsi->info.tc_mapping[4], vsi->info.tc_mapping[5],
 412		 vsi->info.tc_mapping[6], vsi->info.tc_mapping[7]);
 413	dev_info(&pf->pdev->dev,
 414		 "    info: queueing_opt_flags = 0x%02x  queueing_opt_reserved[0..2] = 0x%02x 0x%02x 0x%02x\n",
 415		 vsi->info.queueing_opt_flags,
 416		 vsi->info.queueing_opt_reserved[0],
 417		 vsi->info.queueing_opt_reserved[1],
 418		 vsi->info.queueing_opt_reserved[2]);
 419	dev_info(&pf->pdev->dev,
 420		 "    info: up_enable_bits = 0x%02x\n",
 421		 vsi->info.up_enable_bits);
 422	dev_info(&pf->pdev->dev,
 423		 "    info: sched_reserved = 0x%02x, outer_up_table = 0x%04x\n",
 424		 vsi->info.sched_reserved, vsi->info.outer_up_table);
 425	dev_info(&pf->pdev->dev,
 426		 "    info: cmd_reserved[] = 0x%02x 0x%02x 0x%02x 0x0%02x 0x%02x 0x%02x 0x%02x 0x0%02x\n",
 427		 vsi->info.cmd_reserved[0], vsi->info.cmd_reserved[1],
 428		 vsi->info.cmd_reserved[2], vsi->info.cmd_reserved[3],
 429		 vsi->info.cmd_reserved[4], vsi->info.cmd_reserved[5],
 430		 vsi->info.cmd_reserved[6], vsi->info.cmd_reserved[7]);
 431	dev_info(&pf->pdev->dev,
 432		 "    info: qs_handle[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 433		 vsi->info.qs_handle[0], vsi->info.qs_handle[1],
 434		 vsi->info.qs_handle[2], vsi->info.qs_handle[3],
 435		 vsi->info.qs_handle[4], vsi->info.qs_handle[5],
 436		 vsi->info.qs_handle[6], vsi->info.qs_handle[7]);
 437	dev_info(&pf->pdev->dev,
 438		 "    info: stat_counter_idx = 0x%04x, sched_id = 0x%04x\n",
 439		 vsi->info.stat_counter_idx, vsi->info.sched_id);
 440	dev_info(&pf->pdev->dev,
 441		 "    info: resp_reserved[] = 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x\n",
 442		 vsi->info.resp_reserved[0], vsi->info.resp_reserved[1],
 443		 vsi->info.resp_reserved[2], vsi->info.resp_reserved[3],
 444		 vsi->info.resp_reserved[4], vsi->info.resp_reserved[5],
 445		 vsi->info.resp_reserved[6], vsi->info.resp_reserved[7],
 446		 vsi->info.resp_reserved[8], vsi->info.resp_reserved[9],
 447		 vsi->info.resp_reserved[10], vsi->info.resp_reserved[11]);
 448	dev_info(&pf->pdev->dev, "    idx = %d\n", vsi->idx);
 449	dev_info(&pf->pdev->dev,
 450		 "    tc_config: numtc = %d, enabled_tc = 0x%x\n",
 451		 vsi->tc_config.numtc, vsi->tc_config.enabled_tc);
 452	for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
 453		dev_info(&pf->pdev->dev,
 454			 "    tc_config: tc = %d, qoffset = %d, qcount = %d, netdev_tc = %d\n",
 455			 i, vsi->tc_config.tc_info[i].qoffset,
 456			 vsi->tc_config.tc_info[i].qcount,
 457			 vsi->tc_config.tc_info[i].netdev_tc);
 458	}
 459	dev_info(&pf->pdev->dev,
 460		 "    bw: bw_limit = %d, bw_max_quanta = %d\n",
 461		 vsi->bw_limit, vsi->bw_max_quanta);
 462	for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
 463		dev_info(&pf->pdev->dev,
 464			 "    bw[%d]: ets_share_credits = %d, ets_limit_credits = %d, max_quanta = %d\n",
 465			 i, vsi->bw_ets_share_credits[i],
 466			 vsi->bw_ets_limit_credits[i],
 467			 vsi->bw_ets_max_quanta[i]);
 468	}
 469}
 470
 471/**
 472 * i40e_dbg_dump_aq_desc - handles dump aq_desc write into command datum
 473 * @pf: the i40e_pf created in command write
 474 **/
 475static void i40e_dbg_dump_aq_desc(struct i40e_pf *pf)
 476{
 477	struct i40e_adminq_ring *ring;
 478	struct i40e_hw *hw = &pf->hw;
 479	char hdr[32];
 480	int i;
 481
 482	snprintf(hdr, sizeof(hdr), "%s %s:         ",
 483		 dev_driver_string(&pf->pdev->dev),
 484		 dev_name(&pf->pdev->dev));
 485
 486	/* first the send (command) ring, then the receive (event) ring */
 487	dev_info(&pf->pdev->dev, "AdminQ Tx Ring\n");
 488	ring = &(hw->aq.asq);
 489	for (i = 0; i < ring->count; i++) {
 490		struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
 491
 492		dev_info(&pf->pdev->dev,
 493			 "   at[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
 494			 i, d->flags, d->opcode, d->datalen, d->retval,
 495			 d->cookie_high, d->cookie_low);
 496		print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
 497			       16, 1, d->params.raw, 16, 0);
 498	}
 499
 500	dev_info(&pf->pdev->dev, "AdminQ Rx Ring\n");
 501	ring = &(hw->aq.arq);
 502	for (i = 0; i < ring->count; i++) {
 503		struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
 504
 505		dev_info(&pf->pdev->dev,
 506			 "   ar[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
 507			 i, d->flags, d->opcode, d->datalen, d->retval,
 508			 d->cookie_high, d->cookie_low);
 509		print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
 510			       16, 1, d->params.raw, 16, 0);
 511	}
 512}
 513
 514/**
 515 * i40e_dbg_dump_desc - handles dump desc write into command datum
 516 * @cnt: number of arguments that the user supplied
 517 * @vsi_seid: vsi id entered by user
 518 * @ring_id: ring id entered by user
 519 * @desc_n: descriptor number entered by user
 520 * @pf: the i40e_pf created in command write
 521 * @type: enum describing whether ring is RX, TX or XDP
 522 **/
 523static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n,
 524			       struct i40e_pf *pf, enum ring_type type)
 525{
 526	bool is_rx_ring = type == RING_TYPE_RX;
 527	struct i40e_tx_desc *txd;
 528	union i40e_rx_desc *rxd;
 529	struct i40e_ring *ring;
 530	struct i40e_vsi *vsi;
 531	int i;
 532
 533	vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 534	if (!vsi) {
 535		dev_info(&pf->pdev->dev, "vsi %d not found\n", vsi_seid);
 536		return;
 537	}
 538	if (vsi->type != I40E_VSI_MAIN &&
 539	    vsi->type != I40E_VSI_FDIR &&
 540	    vsi->type != I40E_VSI_VMDQ2) {
 541		dev_info(&pf->pdev->dev,
 542			 "vsi %d type %d descriptor rings not available\n",
 543			 vsi_seid, vsi->type);
 544		return;
 545	}
 546	if (type == RING_TYPE_XDP && !i40e_enabled_xdp_vsi(vsi)) {
 547		dev_info(&pf->pdev->dev, "XDP not enabled on VSI %d\n", vsi_seid);
 548		return;
 549	}
 550	if (ring_id >= vsi->num_queue_pairs || ring_id < 0) {
 551		dev_info(&pf->pdev->dev, "ring %d not found\n", ring_id);
 552		return;
 553	}
 554	if (!vsi->tx_rings || !vsi->tx_rings[0]->desc) {
 555		dev_info(&pf->pdev->dev,
 556			 "descriptor rings have not been allocated for vsi %d\n",
 557			 vsi_seid);
 558		return;
 559	}
 560
 561	switch (type) {
 562	case RING_TYPE_RX:
 563		ring = kmemdup(vsi->rx_rings[ring_id], sizeof(*ring), GFP_KERNEL);
 564		break;
 565	case RING_TYPE_TX:
 566		ring = kmemdup(vsi->tx_rings[ring_id], sizeof(*ring), GFP_KERNEL);
 567		break;
 568	case RING_TYPE_XDP:
 569		ring = kmemdup(vsi->xdp_rings[ring_id], sizeof(*ring), GFP_KERNEL);
 570		break;
 571	default:
 572		ring = NULL;
 573		break;
 574	}
 575	if (!ring)
 576		return;
 577
 578	if (cnt == 2) {
 579		switch (type) {
 580		case RING_TYPE_RX:
 581			dev_info(&pf->pdev->dev, "VSI = %02i Rx ring = %02i\n", vsi_seid, ring_id);
 582			break;
 583		case RING_TYPE_TX:
 584			dev_info(&pf->pdev->dev, "VSI = %02i Tx ring = %02i\n", vsi_seid, ring_id);
 585			break;
 586		case RING_TYPE_XDP:
 587			dev_info(&pf->pdev->dev, "VSI = %02i XDP ring = %02i\n", vsi_seid, ring_id);
 588			break;
 589		}
 590		for (i = 0; i < ring->count; i++) {
 591			if (!is_rx_ring) {
 592				txd = I40E_TX_DESC(ring, i);
 593				dev_info(&pf->pdev->dev,
 594					 "   d[%03x] = 0x%016llx 0x%016llx\n",
 595					 i, txd->buffer_addr,
 596					 txd->cmd_type_offset_bsz);
 597			} else {
 598				rxd = I40E_RX_DESC(ring, i);
 599				dev_info(&pf->pdev->dev,
 600					 "   d[%03x] = 0x%016llx 0x%016llx\n",
 601					 i, rxd->read.pkt_addr,
 602					 rxd->read.hdr_addr);
 603			}
 604		}
 605	} else if (cnt == 3) {
 606		if (desc_n >= ring->count || desc_n < 0) {
 607			dev_info(&pf->pdev->dev,
 608				 "descriptor %d not found\n", desc_n);
 609			goto out;
 610		}
 611		if (!is_rx_ring) {
 612			txd = I40E_TX_DESC(ring, desc_n);
 613			dev_info(&pf->pdev->dev,
 614				 "vsi = %02i tx ring = %02i d[%03x] = 0x%016llx 0x%016llx\n",
 615				 vsi_seid, ring_id, desc_n,
 616				 txd->buffer_addr, txd->cmd_type_offset_bsz);
 617		} else {
 618			rxd = I40E_RX_DESC(ring, desc_n);
 619			dev_info(&pf->pdev->dev,
 620				 "vsi = %02i rx ring = %02i d[%03x] = 0x%016llx 0x%016llx\n",
 621				 vsi_seid, ring_id, desc_n,
 622				 rxd->read.pkt_addr, rxd->read.hdr_addr);
 623		}
 624	} else {
 625		dev_info(&pf->pdev->dev, "dump desc rx/tx/xdp <vsi_seid> <ring_id> [<desc_n>]\n");
 626	}
 627
 628out:
 629	kfree(ring);
 630}
 631
 632/**
 633 * i40e_dbg_dump_vsi_no_seid - handles dump vsi write into command datum
 634 * @pf: the i40e_pf created in command write
 635 **/
 636static void i40e_dbg_dump_vsi_no_seid(struct i40e_pf *pf)
 637{
 638	struct i40e_vsi *vsi;
 639	int i;
 640
 641	i40e_pf_for_each_vsi(pf, i, vsi)
 642		dev_info(&pf->pdev->dev, "dump vsi[%d]: %d\n", i, vsi->seid);
 
 
 643}
 644
 645/**
 646 * i40e_dbg_dump_eth_stats - handles dump stats write into command datum
 647 * @pf: the i40e_pf created in command write
 648 * @estats: the eth stats structure to be dumped
 649 **/
 650static void i40e_dbg_dump_eth_stats(struct i40e_pf *pf,
 651				    struct i40e_eth_stats *estats)
 652{
 653	dev_info(&pf->pdev->dev, "  ethstats:\n");
 654	dev_info(&pf->pdev->dev,
 655		 "    rx_bytes = \t%lld \trx_unicast = \t\t%lld \trx_multicast = \t%lld\n",
 656		estats->rx_bytes, estats->rx_unicast, estats->rx_multicast);
 657	dev_info(&pf->pdev->dev,
 658		 "    rx_broadcast = \t%lld \trx_discards = \t\t%lld\n",
 659		 estats->rx_broadcast, estats->rx_discards);
 660	dev_info(&pf->pdev->dev,
 661		 "    rx_unknown_protocol = \t%lld \ttx_bytes = \t%lld\n",
 662		 estats->rx_unknown_protocol, estats->tx_bytes);
 663	dev_info(&pf->pdev->dev,
 664		 "    tx_unicast = \t%lld \ttx_multicast = \t\t%lld \ttx_broadcast = \t%lld\n",
 665		 estats->tx_unicast, estats->tx_multicast, estats->tx_broadcast);
 666	dev_info(&pf->pdev->dev,
 667		 "    tx_discards = \t%lld \ttx_errors = \t\t%lld\n",
 668		 estats->tx_discards, estats->tx_errors);
 669}
 670
 671/**
 672 * i40e_dbg_dump_veb_seid - handles dump stats of a single given veb
 673 * @pf: the i40e_pf created in command write
 674 * @seid: the seid the user put in
 675 **/
 676static void i40e_dbg_dump_veb_seid(struct i40e_pf *pf, int seid)
 677{
 678	struct i40e_veb *veb;
 679
 680	veb = i40e_pf_get_veb_by_seid(pf, seid);
 681	if (!veb) {
 682		dev_info(&pf->pdev->dev, "can't find veb %d\n", seid);
 683		return;
 684	}
 685	dev_info(&pf->pdev->dev,
 686		 "veb idx=%d stats_ic=%d  seid=%d uplink=%d mode=%s\n",
 687		 veb->idx, veb->stats_idx, veb->seid, veb->uplink_seid,
 
 688		 veb->bridge_mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
 689	i40e_dbg_dump_eth_stats(pf, &veb->stats);
 690}
 691
 692/**
 693 * i40e_dbg_dump_veb_all - dumps all known veb's stats
 694 * @pf: the i40e_pf created in command write
 695 **/
 696static void i40e_dbg_dump_veb_all(struct i40e_pf *pf)
 697{
 698	struct i40e_veb *veb;
 699	int i;
 700
 701	i40e_pf_for_each_veb(pf, i, veb)
 702		i40e_dbg_dump_veb_seid(pf, veb->seid);
 
 
 
 703}
 704
 705/**
 706 * i40e_dbg_dump_vf - dump VF info
 707 * @pf: the i40e_pf created in command write
 708 * @vf_id: the vf_id from the user
 709 **/
 710static void i40e_dbg_dump_vf(struct i40e_pf *pf, int vf_id)
 711{
 712	struct i40e_vf *vf;
 713	struct i40e_vsi *vsi;
 714
 715	if (!pf->num_alloc_vfs) {
 716		dev_info(&pf->pdev->dev, "no VFs allocated\n");
 717	} else if ((vf_id >= 0) && (vf_id < pf->num_alloc_vfs)) {
 718		vf = &pf->vf[vf_id];
 719		vsi = pf->vsi[vf->lan_vsi_idx];
 720		dev_info(&pf->pdev->dev, "vf %2d: VSI id=%d, seid=%d, qps=%d\n",
 721			 vf_id, vf->lan_vsi_id, vsi->seid, vf->num_queue_pairs);
 722		dev_info(&pf->pdev->dev, "       num MDD=%lld\n",
 723			 vf->num_mdd_events);
 
 
 724	} else {
 725		dev_info(&pf->pdev->dev, "invalid VF id %d\n", vf_id);
 726	}
 727}
 728
 729/**
 730 * i40e_dbg_dump_vf_all - dump VF info for all VFs
 731 * @pf: the i40e_pf created in command write
 732 **/
 733static void i40e_dbg_dump_vf_all(struct i40e_pf *pf)
 734{
 735	int i;
 736
 737	if (!pf->num_alloc_vfs)
 738		dev_info(&pf->pdev->dev, "no VFs enabled!\n");
 739	else
 740		for (i = 0; i < pf->num_alloc_vfs; i++)
 741			i40e_dbg_dump_vf(pf, i);
 742}
 743
 744/**
 745 * i40e_dbg_command_write - write into command datum
 746 * @filp: the opened file
 747 * @buffer: where to find the user's data
 748 * @count: the length of the user's data
 749 * @ppos: file position offset
 750 **/
 751static ssize_t i40e_dbg_command_write(struct file *filp,
 752				      const char __user *buffer,
 753				      size_t count, loff_t *ppos)
 754{
 755	struct i40e_pf *pf = filp->private_data;
 756	char *cmd_buf, *cmd_buf_tmp;
 757	int bytes_not_copied;
 758	struct i40e_vsi *vsi;
 759	int vsi_seid;
 760	int veb_seid;
 761	int vf_id;
 762	int cnt;
 763
 764	/* don't allow partial writes */
 765	if (*ppos != 0)
 766		return 0;
 767
 768	cmd_buf = kzalloc(count + 1, GFP_KERNEL);
 769	if (!cmd_buf)
 770		return count;
 771	bytes_not_copied = copy_from_user(cmd_buf, buffer, count);
 772	if (bytes_not_copied) {
 773		kfree(cmd_buf);
 774		return -EFAULT;
 775	}
 776	cmd_buf[count] = '\0';
 777
 778	cmd_buf_tmp = strchr(cmd_buf, '\n');
 779	if (cmd_buf_tmp) {
 780		*cmd_buf_tmp = '\0';
 781		count = cmd_buf_tmp - cmd_buf + 1;
 782	}
 783
 784	if (strncmp(cmd_buf, "add vsi", 7) == 0) {
 785		vsi_seid = -1;
 786		cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
 787		if (cnt == 0) {
 788			/* default to PF VSI */
 789			vsi_seid = pf->vsi[pf->lan_vsi]->seid;
 790		} else if (vsi_seid < 0) {
 791			dev_info(&pf->pdev->dev, "add VSI %d: bad vsi seid\n",
 792				 vsi_seid);
 793			goto command_write_done;
 794		}
 795
 796		/* By default we are in VEPA mode, if this is the first VF/VMDq
 797		 * VSI to be added switch to VEB mode.
 798		 */
 799		if (!test_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags)) {
 800			set_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags);
 801			i40e_do_reset_safe(pf, I40E_PF_RESET_FLAG);
 802		}
 803
 804		vsi = i40e_vsi_setup(pf, I40E_VSI_VMDQ2, vsi_seid, 0);
 805		if (vsi)
 806			dev_info(&pf->pdev->dev, "added VSI %d to relay %d\n",
 807				 vsi->seid, vsi->uplink_seid);
 808		else
 809			dev_info(&pf->pdev->dev, "'%s' failed\n", cmd_buf);
 810
 811	} else if (strncmp(cmd_buf, "del vsi", 7) == 0) {
 812		cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
 813		if (cnt != 1) {
 814			dev_info(&pf->pdev->dev,
 815				 "del vsi: bad command string, cnt=%d\n",
 816				 cnt);
 817			goto command_write_done;
 818		}
 819		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 820		if (!vsi) {
 821			dev_info(&pf->pdev->dev, "del VSI %d: seid not found\n",
 822				 vsi_seid);
 823			goto command_write_done;
 824		}
 825
 826		dev_info(&pf->pdev->dev, "deleting VSI %d\n", vsi_seid);
 827		i40e_vsi_release(vsi);
 828
 829	} else if (strncmp(cmd_buf, "add relay", 9) == 0) {
 830		struct i40e_veb *veb;
 831		u8 enabled_tc = 0x1;
 832		int uplink_seid;
 833
 834		cnt = sscanf(&cmd_buf[9], "%i %i", &uplink_seid, &vsi_seid);
 835		if (cnt == 0) {
 836			uplink_seid = 0;
 837			vsi_seid = 0;
 838		} else if (cnt != 2) {
 839			dev_info(&pf->pdev->dev,
 840				 "add relay: bad command string, cnt=%d\n",
 841				 cnt);
 842			goto command_write_done;
 843		} else if (uplink_seid < 0) {
 844			dev_info(&pf->pdev->dev,
 845				 "add relay %d: bad uplink seid\n",
 846				 uplink_seid);
 847			goto command_write_done;
 848		}
 849
 850		if (uplink_seid != 0 && uplink_seid != pf->mac_seid) {
 
 851			dev_info(&pf->pdev->dev,
 852				 "add relay: relay uplink %d not found\n",
 853				 uplink_seid);
 854			goto command_write_done;
 855		} else if (uplink_seid) {
 856			vsi = i40e_pf_get_vsi_by_seid(pf, vsi_seid);
 857			if (!vsi) {
 858				dev_info(&pf->pdev->dev,
 859					 "add relay: VSI %d not found\n",
 860					 vsi_seid);
 861				goto command_write_done;
 862			}
 863			enabled_tc = vsi->tc_config.enabled_tc;
 864		} else if (vsi_seid) {
 865			dev_info(&pf->pdev->dev,
 866				 "add relay: VSI must be 0 for floating relay\n");
 
 867			goto command_write_done;
 868		}
 869
 870		veb = i40e_veb_setup(pf, 0, uplink_seid, vsi_seid, enabled_tc);
 
 871		if (veb)
 872			dev_info(&pf->pdev->dev, "added relay %d\n", veb->seid);
 873		else
 874			dev_info(&pf->pdev->dev, "add relay failed\n");
 875
 876	} else if (strncmp(cmd_buf, "del relay", 9) == 0) {
 877		struct i40e_veb *veb;
 878		int i;
 879
 880		cnt = sscanf(&cmd_buf[9], "%i", &veb_seid);
 881		if (cnt != 1) {
 882			dev_info(&pf->pdev->dev,
 883				 "del relay: bad command string, cnt=%d\n",
 884				 cnt);
 885			goto command_write_done;
 886		} else if (veb_seid < 0) {
 887			dev_info(&pf->pdev->dev,
 888				 "del relay %d: bad relay seid\n", veb_seid);
 889			goto command_write_done;
 890		}
 891
 892		/* find the veb */
 893		i40e_pf_for_each_veb(pf, i, veb)
 894			if (veb->seid == veb_seid)
 895				break;
 896
 897		if (i >= I40E_MAX_VEB) {
 898			dev_info(&pf->pdev->dev,
 899				 "del relay: relay %d not found\n", veb_seid);
 900			goto command_write_done;
 901		}
 902
 903		dev_info(&pf->pdev->dev, "deleting relay %d\n", veb_seid);
 904		i40e_veb_release(veb);
 905	} else if (strncmp(cmd_buf, "add pvid", 8) == 0) {
 906		unsigned int v;
 907		int ret;
 908		u16 vid;
 
 909
 910		cnt = sscanf(&cmd_buf[8], "%i %u", &vsi_seid, &v);
 911		if (cnt != 2) {
 912			dev_info(&pf->pdev->dev,
 913				 "add pvid: bad command string, cnt=%d\n", cnt);
 914			goto command_write_done;
 915		}
 916
 917		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 918		if (!vsi) {
 919			dev_info(&pf->pdev->dev, "add pvid: VSI %d not found\n",
 920				 vsi_seid);
 921			goto command_write_done;
 922		}
 923
 924		vid = v;
 925		ret = i40e_vsi_add_pvid(vsi, vid);
 926		if (!ret)
 927			dev_info(&pf->pdev->dev,
 928				 "add pvid: %d added to VSI %d\n",
 929				 vid, vsi_seid);
 930		else
 931			dev_info(&pf->pdev->dev,
 932				 "add pvid: %d to VSI %d failed, ret=%d\n",
 933				 vid, vsi_seid, ret);
 934
 935	} else if (strncmp(cmd_buf, "del pvid", 8) == 0) {
 936
 937		cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
 938		if (cnt != 1) {
 939			dev_info(&pf->pdev->dev,
 940				 "del pvid: bad command string, cnt=%d\n",
 941				 cnt);
 942			goto command_write_done;
 943		}
 944
 945		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 946		if (!vsi) {
 947			dev_info(&pf->pdev->dev,
 948				 "del pvid: VSI %d not found\n", vsi_seid);
 949			goto command_write_done;
 950		}
 951
 952		i40e_vsi_remove_pvid(vsi);
 953		dev_info(&pf->pdev->dev,
 954			 "del pvid: removed from VSI %d\n", vsi_seid);
 955
 956	} else if (strncmp(cmd_buf, "dump", 4) == 0) {
 957		if (strncmp(&cmd_buf[5], "switch", 6) == 0) {
 958			i40e_fetch_switch_configuration(pf, true);
 959		} else if (strncmp(&cmd_buf[5], "vsi", 3) == 0) {
 960			cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
 961			if (cnt > 0)
 962				i40e_dbg_dump_vsi_seid(pf, vsi_seid);
 963			else
 964				i40e_dbg_dump_vsi_no_seid(pf);
 965		} else if (strncmp(&cmd_buf[5], "veb", 3) == 0) {
 966			cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
 967			if (cnt > 0)
 968				i40e_dbg_dump_veb_seid(pf, vsi_seid);
 969			else
 970				i40e_dbg_dump_veb_all(pf);
 971		} else if (strncmp(&cmd_buf[5], "vf", 2) == 0) {
 972			cnt = sscanf(&cmd_buf[7], "%i", &vf_id);
 973			if (cnt > 0)
 974				i40e_dbg_dump_vf(pf, vf_id);
 975			else
 976				i40e_dbg_dump_vf_all(pf);
 977		} else if (strncmp(&cmd_buf[5], "desc", 4) == 0) {
 978			int ring_id, desc_n;
 979			if (strncmp(&cmd_buf[10], "rx", 2) == 0) {
 980				cnt = sscanf(&cmd_buf[12], "%i %i %i",
 981					     &vsi_seid, &ring_id, &desc_n);
 982				i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
 983						   desc_n, pf, RING_TYPE_RX);
 984			} else if (strncmp(&cmd_buf[10], "tx", 2)
 985					== 0) {
 986				cnt = sscanf(&cmd_buf[12], "%i %i %i",
 987					     &vsi_seid, &ring_id, &desc_n);
 988				i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
 989						   desc_n, pf, RING_TYPE_TX);
 990			} else if (strncmp(&cmd_buf[10], "xdp", 3)
 991					== 0) {
 992				cnt = sscanf(&cmd_buf[13], "%i %i %i",
 993					     &vsi_seid, &ring_id, &desc_n);
 994				i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
 995						   desc_n, pf, RING_TYPE_XDP);
 996			} else if (strncmp(&cmd_buf[10], "aq", 2) == 0) {
 997				i40e_dbg_dump_aq_desc(pf);
 998			} else {
 999				dev_info(&pf->pdev->dev,
1000					 "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1001				dev_info(&pf->pdev->dev,
1002					 "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1003				dev_info(&pf->pdev->dev,
1004					 "dump desc xdp <vsi_seid> <ring_id> [<desc_n>]\n");
1005				dev_info(&pf->pdev->dev, "dump desc aq\n");
1006			}
1007		} else if (strncmp(&cmd_buf[5], "reset stats", 11) == 0) {
1008			dev_info(&pf->pdev->dev,
1009				 "core reset count: %d\n", pf->corer_count);
1010			dev_info(&pf->pdev->dev,
1011				 "global reset count: %d\n", pf->globr_count);
1012			dev_info(&pf->pdev->dev,
1013				 "emp reset count: %d\n", pf->empr_count);
1014			dev_info(&pf->pdev->dev,
1015				 "pf reset count: %d\n", pf->pfr_count);
 
 
 
1016		} else if (strncmp(&cmd_buf[5], "port", 4) == 0) {
1017			struct i40e_aqc_query_port_ets_config_resp *bw_data;
1018			struct i40e_dcbx_config *cfg =
1019						&pf->hw.local_dcbx_config;
1020			struct i40e_dcbx_config *r_cfg =
1021						&pf->hw.remote_dcbx_config;
1022			int i, ret;
1023			u16 switch_id;
1024
1025			bw_data = kzalloc(sizeof(
1026				    struct i40e_aqc_query_port_ets_config_resp),
1027					  GFP_KERNEL);
1028			if (!bw_data) {
1029				ret = -ENOMEM;
1030				goto command_write_done;
1031			}
1032
1033			vsi = pf->vsi[pf->lan_vsi];
1034			switch_id =
1035				le16_to_cpu(vsi->info.switch_id) &
1036					    I40E_AQ_VSI_SW_ID_MASK;
1037
1038			ret = i40e_aq_query_port_ets_config(&pf->hw,
1039							    switch_id,
1040							    bw_data, NULL);
1041			if (ret) {
1042				dev_info(&pf->pdev->dev,
1043					 "Query Port ETS Config AQ command failed =0x%x\n",
1044					 pf->hw.aq.asq_last_status);
1045				kfree(bw_data);
1046				bw_data = NULL;
1047				goto command_write_done;
1048			}
1049			dev_info(&pf->pdev->dev,
1050				 "port bw: tc_valid=0x%x tc_strict_prio=0x%x, tc_bw_max=0x%04x,0x%04x\n",
1051				 bw_data->tc_valid_bits,
1052				 bw_data->tc_strict_priority_bits,
1053				 le16_to_cpu(bw_data->tc_bw_max[0]),
1054				 le16_to_cpu(bw_data->tc_bw_max[1]));
1055			for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1056				dev_info(&pf->pdev->dev, "port bw: tc_bw_share=%d tc_bw_limit=%d\n",
1057					 bw_data->tc_bw_share_credits[i],
1058					 le16_to_cpu(bw_data->tc_bw_limits[i]));
1059			}
1060
1061			kfree(bw_data);
1062			bw_data = NULL;
1063
1064			dev_info(&pf->pdev->dev,
1065				 "port dcbx_mode=%d\n", cfg->dcbx_mode);
1066			dev_info(&pf->pdev->dev,
1067				 "port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1068				 cfg->etscfg.willing, cfg->etscfg.cbs,
1069				 cfg->etscfg.maxtcs);
1070			for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1071				dev_info(&pf->pdev->dev, "port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1072					 i, cfg->etscfg.prioritytable[i],
1073					 cfg->etscfg.tcbwtable[i],
1074					 cfg->etscfg.tsatable[i]);
1075			}
1076			for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1077				dev_info(&pf->pdev->dev, "port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1078					 i, cfg->etsrec.prioritytable[i],
1079					 cfg->etsrec.tcbwtable[i],
1080					 cfg->etsrec.tsatable[i]);
1081			}
1082			dev_info(&pf->pdev->dev,
1083				 "port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1084				 cfg->pfc.willing, cfg->pfc.mbc,
1085				 cfg->pfc.pfccap, cfg->pfc.pfcenable);
1086			dev_info(&pf->pdev->dev,
1087				 "port app_table: num_apps=%d\n", cfg->numapps);
1088			for (i = 0; i < cfg->numapps; i++) {
1089				dev_info(&pf->pdev->dev, "port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1090					 i, cfg->app[i].priority,
1091					 cfg->app[i].selector,
1092					 cfg->app[i].protocolid);
1093			}
1094			/* Peer TLV DCBX data */
1095			dev_info(&pf->pdev->dev,
1096				 "remote port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1097				 r_cfg->etscfg.willing,
1098				 r_cfg->etscfg.cbs, r_cfg->etscfg.maxtcs);
1099			for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1100				dev_info(&pf->pdev->dev, "remote port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1101					 i, r_cfg->etscfg.prioritytable[i],
1102					 r_cfg->etscfg.tcbwtable[i],
1103					 r_cfg->etscfg.tsatable[i]);
1104			}
1105			for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1106				dev_info(&pf->pdev->dev, "remote port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1107					 i, r_cfg->etsrec.prioritytable[i],
1108					 r_cfg->etsrec.tcbwtable[i],
1109					 r_cfg->etsrec.tsatable[i]);
1110			}
1111			dev_info(&pf->pdev->dev,
1112				 "remote port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1113				 r_cfg->pfc.willing,
1114				 r_cfg->pfc.mbc,
1115				 r_cfg->pfc.pfccap,
1116				 r_cfg->pfc.pfcenable);
1117			dev_info(&pf->pdev->dev,
1118				 "remote port app_table: num_apps=%d\n",
1119				 r_cfg->numapps);
1120			for (i = 0; i < r_cfg->numapps; i++) {
1121				dev_info(&pf->pdev->dev, "remote port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1122					 i, r_cfg->app[i].priority,
1123					 r_cfg->app[i].selector,
1124					 r_cfg->app[i].protocolid);
1125			}
1126		} else if (strncmp(&cmd_buf[5], "debug fwdata", 12) == 0) {
1127			int cluster_id, table_id;
1128			int index, ret;
1129			u16 buff_len = 4096;
1130			u32 next_index;
1131			u8 next_table;
1132			u8 *buff;
1133			u16 rlen;
1134
1135			cnt = sscanf(&cmd_buf[18], "%i %i %i",
1136				     &cluster_id, &table_id, &index);
1137			if (cnt != 3) {
1138				dev_info(&pf->pdev->dev,
1139					 "dump debug fwdata <cluster_id> <table_id> <index>\n");
1140				goto command_write_done;
1141			}
1142
1143			dev_info(&pf->pdev->dev,
1144				 "AQ debug dump fwdata params %x %x %x %x\n",
1145				 cluster_id, table_id, index, buff_len);
1146			buff = kzalloc(buff_len, GFP_KERNEL);
1147			if (!buff)
1148				goto command_write_done;
1149
1150			ret = i40e_aq_debug_dump(&pf->hw, cluster_id, table_id,
1151						 index, buff_len, buff, &rlen,
1152						 &next_table, &next_index,
1153						 NULL);
1154			if (ret) {
1155				dev_info(&pf->pdev->dev,
1156					 "debug dump fwdata AQ Failed %d 0x%x\n",
1157					 ret, pf->hw.aq.asq_last_status);
1158				kfree(buff);
1159				buff = NULL;
1160				goto command_write_done;
1161			}
1162			dev_info(&pf->pdev->dev,
1163				 "AQ debug dump fwdata rlen=0x%x next_table=0x%x next_index=0x%x\n",
1164				 rlen, next_table, next_index);
1165			print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1166				       DUMP_PREFIX_OFFSET, 16, 1,
1167				       buff, rlen, true);
1168			kfree(buff);
1169			buff = NULL;
1170		} else {
1171			dev_info(&pf->pdev->dev,
1172				 "dump desc tx <vsi_seid> <ring_id> [<desc_n>], dump desc rx <vsi_seid> <ring_id> [<desc_n>], dump desc xdp <vsi_seid> <ring_id> [<desc_n>],\n");
1173			dev_info(&pf->pdev->dev, "dump switch\n");
1174			dev_info(&pf->pdev->dev, "dump vsi [seid]\n");
1175			dev_info(&pf->pdev->dev, "dump reset stats\n");
1176			dev_info(&pf->pdev->dev, "dump port\n");
1177			dev_info(&pf->pdev->dev, "dump vf [vf_id]\n");
1178			dev_info(&pf->pdev->dev,
1179				 "dump debug fwdata <cluster_id> <table_id> <index>\n");
1180		}
1181	} else if (strncmp(cmd_buf, "pfr", 3) == 0) {
1182		dev_info(&pf->pdev->dev, "debugfs: forcing PFR\n");
1183		i40e_do_reset_safe(pf, BIT(__I40E_PF_RESET_REQUESTED));
1184
1185	} else if (strncmp(cmd_buf, "corer", 5) == 0) {
1186		dev_info(&pf->pdev->dev, "debugfs: forcing CoreR\n");
1187		i40e_do_reset_safe(pf, BIT(__I40E_CORE_RESET_REQUESTED));
1188
1189	} else if (strncmp(cmd_buf, "globr", 5) == 0) {
1190		dev_info(&pf->pdev->dev, "debugfs: forcing GlobR\n");
1191		i40e_do_reset_safe(pf, BIT(__I40E_GLOBAL_RESET_REQUESTED));
1192
1193	} else if (strncmp(cmd_buf, "read", 4) == 0) {
1194		u32 address;
1195		u32 value;
1196
1197		cnt = sscanf(&cmd_buf[4], "%i", &address);
1198		if (cnt != 1) {
1199			dev_info(&pf->pdev->dev, "read <reg>\n");
1200			goto command_write_done;
1201		}
1202
1203		/* check the range on address */
1204		if (address > (pf->ioremap_len - sizeof(u32))) {
1205			dev_info(&pf->pdev->dev, "read reg address 0x%08x too large, max=0x%08lx\n",
1206				 address, (unsigned long int)(pf->ioremap_len - sizeof(u32)));
1207			goto command_write_done;
1208		}
1209
1210		value = rd32(&pf->hw, address);
1211		dev_info(&pf->pdev->dev, "read: 0x%08x = 0x%08x\n",
1212			 address, value);
1213
1214	} else if (strncmp(cmd_buf, "write", 5) == 0) {
1215		u32 address, value;
1216
1217		cnt = sscanf(&cmd_buf[5], "%i %i", &address, &value);
1218		if (cnt != 2) {
1219			dev_info(&pf->pdev->dev, "write <reg> <value>\n");
1220			goto command_write_done;
1221		}
1222
1223		/* check the range on address */
1224		if (address > (pf->ioremap_len - sizeof(u32))) {
1225			dev_info(&pf->pdev->dev, "write reg address 0x%08x too large, max=0x%08lx\n",
1226				 address, (unsigned long int)(pf->ioremap_len - sizeof(u32)));
1227			goto command_write_done;
1228		}
1229		wr32(&pf->hw, address, value);
1230		value = rd32(&pf->hw, address);
1231		dev_info(&pf->pdev->dev, "write: 0x%08x = 0x%08x\n",
1232			 address, value);
1233	} else if (strncmp(cmd_buf, "clear_stats", 11) == 0) {
1234		if (strncmp(&cmd_buf[12], "vsi", 3) == 0) {
1235			cnt = sscanf(&cmd_buf[15], "%i", &vsi_seid);
1236			if (cnt == 0) {
1237				int i;
1238
1239				i40e_pf_for_each_vsi(pf, i, vsi)
1240					i40e_vsi_reset_stats(vsi);
1241				dev_info(&pf->pdev->dev, "vsi clear stats called for all vsi's\n");
1242			} else if (cnt == 1) {
1243				vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1244				if (!vsi) {
1245					dev_info(&pf->pdev->dev,
1246						 "clear_stats vsi: bad vsi %d\n",
1247						 vsi_seid);
1248					goto command_write_done;
1249				}
1250				i40e_vsi_reset_stats(vsi);
1251				dev_info(&pf->pdev->dev,
1252					 "vsi clear stats called for vsi %d\n",
1253					 vsi_seid);
1254			} else {
1255				dev_info(&pf->pdev->dev, "clear_stats vsi [seid]\n");
1256			}
1257		} else if (strncmp(&cmd_buf[12], "port", 4) == 0) {
1258			if (pf->hw.partition_id == 1) {
1259				i40e_pf_reset_stats(pf);
1260				dev_info(&pf->pdev->dev, "port stats cleared\n");
1261			} else {
1262				dev_info(&pf->pdev->dev, "clear port stats not allowed on this port partition\n");
1263			}
1264		} else {
1265			dev_info(&pf->pdev->dev, "clear_stats vsi [seid] or clear_stats port\n");
1266		}
1267	} else if (strncmp(cmd_buf, "send aq_cmd", 11) == 0) {
1268		struct i40e_aq_desc *desc;
1269		int ret;
1270
1271		desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1272		if (!desc)
1273			goto command_write_done;
1274		cnt = sscanf(&cmd_buf[11],
1275			     "%hi %hi %hi %hi %i %i %i %i %i %i",
1276			     &desc->flags,
1277			     &desc->opcode, &desc->datalen, &desc->retval,
1278			     &desc->cookie_high, &desc->cookie_low,
1279			     &desc->params.internal.param0,
1280			     &desc->params.internal.param1,
1281			     &desc->params.internal.param2,
1282			     &desc->params.internal.param3);
1283		if (cnt != 10) {
1284			dev_info(&pf->pdev->dev,
1285				 "send aq_cmd: bad command string, cnt=%d\n",
1286				 cnt);
1287			kfree(desc);
1288			desc = NULL;
1289			goto command_write_done;
1290		}
1291		ret = i40e_asq_send_command(&pf->hw, desc, NULL, 0, NULL);
1292		if (!ret) {
1293			dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1294		} else if (ret == -EIO) {
1295			dev_info(&pf->pdev->dev,
1296				 "AQ command send failed Opcode %x AQ Error: %d\n",
1297				 desc->opcode, pf->hw.aq.asq_last_status);
1298		} else {
1299			dev_info(&pf->pdev->dev,
1300				 "AQ command send failed Opcode %x Status: %d\n",
1301				 desc->opcode, ret);
1302		}
1303		dev_info(&pf->pdev->dev,
1304			 "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1305			 desc->flags, desc->opcode, desc->datalen, desc->retval,
1306			 desc->cookie_high, desc->cookie_low,
1307			 desc->params.internal.param0,
1308			 desc->params.internal.param1,
1309			 desc->params.internal.param2,
1310			 desc->params.internal.param3);
1311		kfree(desc);
1312		desc = NULL;
1313	} else if (strncmp(cmd_buf, "send indirect aq_cmd", 20) == 0) {
1314		struct i40e_aq_desc *desc;
 
1315		u16 buffer_len;
1316		u8 *buff;
1317		int ret;
1318
1319		desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1320		if (!desc)
1321			goto command_write_done;
1322		cnt = sscanf(&cmd_buf[20],
1323			     "%hi %hi %hi %hi %i %i %i %i %i %i %hi",
1324			     &desc->flags,
1325			     &desc->opcode, &desc->datalen, &desc->retval,
1326			     &desc->cookie_high, &desc->cookie_low,
1327			     &desc->params.internal.param0,
1328			     &desc->params.internal.param1,
1329			     &desc->params.internal.param2,
1330			     &desc->params.internal.param3,
1331			     &buffer_len);
1332		if (cnt != 11) {
1333			dev_info(&pf->pdev->dev,
1334				 "send indirect aq_cmd: bad command string, cnt=%d\n",
1335				 cnt);
1336			kfree(desc);
1337			desc = NULL;
1338			goto command_write_done;
1339		}
1340		/* Just stub a buffer big enough in case user messed up */
1341		if (buffer_len == 0)
1342			buffer_len = 1280;
1343
1344		buff = kzalloc(buffer_len, GFP_KERNEL);
1345		if (!buff) {
1346			kfree(desc);
1347			desc = NULL;
1348			goto command_write_done;
1349		}
1350		desc->flags |= cpu_to_le16((u16)I40E_AQ_FLAG_BUF);
1351		ret = i40e_asq_send_command(&pf->hw, desc, buff,
1352					    buffer_len, NULL);
1353		if (!ret) {
1354			dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1355		} else if (ret == -EIO) {
1356			dev_info(&pf->pdev->dev,
1357				 "AQ command send failed Opcode %x AQ Error: %d\n",
1358				 desc->opcode, pf->hw.aq.asq_last_status);
1359		} else {
1360			dev_info(&pf->pdev->dev,
1361				 "AQ command send failed Opcode %x Status: %d\n",
1362				 desc->opcode, ret);
1363		}
1364		dev_info(&pf->pdev->dev,
1365			 "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1366			 desc->flags, desc->opcode, desc->datalen, desc->retval,
1367			 desc->cookie_high, desc->cookie_low,
1368			 desc->params.internal.param0,
1369			 desc->params.internal.param1,
1370			 desc->params.internal.param2,
1371			 desc->params.internal.param3);
1372		print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1373			       DUMP_PREFIX_OFFSET, 16, 1,
1374			       buff, buffer_len, true);
1375		kfree(buff);
1376		buff = NULL;
1377		kfree(desc);
1378		desc = NULL;
1379	} else if (strncmp(cmd_buf, "fd current cnt", 14) == 0) {
1380		dev_info(&pf->pdev->dev, "FD current total filter count for this interface: %d\n",
1381			 i40e_get_current_fd_count(pf));
1382	} else if (strncmp(cmd_buf, "lldp", 4) == 0) {
1383		if (strncmp(&cmd_buf[5], "stop", 4) == 0) {
1384			int ret;
1385
1386			ret = i40e_aq_stop_lldp(&pf->hw, false, false, NULL);
1387			if (ret) {
1388				dev_info(&pf->pdev->dev,
1389					 "Stop LLDP AQ command failed =0x%x\n",
1390					 pf->hw.aq.asq_last_status);
1391				goto command_write_done;
1392			}
1393			ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1394						pf->hw.mac.addr,
1395						ETH_P_LLDP, 0,
1396						pf->vsi[pf->lan_vsi]->seid,
1397						0, true, NULL, NULL);
1398			if (ret) {
1399				dev_info(&pf->pdev->dev,
1400					"%s: Add Control Packet Filter AQ command failed =0x%x\n",
1401					__func__, pf->hw.aq.asq_last_status);
1402				goto command_write_done;
1403			}
1404#ifdef CONFIG_I40E_DCB
1405			pf->dcbx_cap = DCB_CAP_DCBX_HOST |
1406				       DCB_CAP_DCBX_VER_IEEE;
1407#endif /* CONFIG_I40E_DCB */
1408		} else if (strncmp(&cmd_buf[5], "start", 5) == 0) {
1409			int ret;
1410
1411			ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1412						pf->hw.mac.addr,
1413						ETH_P_LLDP, 0,
1414						pf->vsi[pf->lan_vsi]->seid,
1415						0, false, NULL, NULL);
1416			if (ret) {
1417				dev_info(&pf->pdev->dev,
1418					"%s: Remove Control Packet Filter AQ command failed =0x%x\n",
1419					__func__, pf->hw.aq.asq_last_status);
1420				/* Continue and start FW LLDP anyways */
1421			}
1422
1423			ret = i40e_aq_start_lldp(&pf->hw, false, NULL);
1424			if (ret) {
1425				dev_info(&pf->pdev->dev,
1426					 "Start LLDP AQ command failed =0x%x\n",
1427					 pf->hw.aq.asq_last_status);
1428				goto command_write_done;
1429			}
1430#ifdef CONFIG_I40E_DCB
1431			pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED |
1432				       DCB_CAP_DCBX_VER_IEEE;
1433#endif /* CONFIG_I40E_DCB */
1434		} else if (strncmp(&cmd_buf[5],
1435			   "get local", 9) == 0) {
1436			u16 llen, rlen;
1437			int ret;
1438			u8 *buff;
1439
1440			buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1441			if (!buff)
1442				goto command_write_done;
1443
1444			ret = i40e_aq_get_lldp_mib(&pf->hw, 0,
1445						   I40E_AQ_LLDP_MIB_LOCAL,
1446						   buff, I40E_LLDPDU_SIZE,
1447						   &llen, &rlen, NULL);
1448			if (ret) {
1449				dev_info(&pf->pdev->dev,
1450					 "Get LLDP MIB (local) AQ command failed =0x%x\n",
1451					 pf->hw.aq.asq_last_status);
1452				kfree(buff);
1453				buff = NULL;
1454				goto command_write_done;
1455			}
1456			dev_info(&pf->pdev->dev, "LLDP MIB (local)\n");
1457			print_hex_dump(KERN_INFO, "LLDP MIB (local): ",
1458				       DUMP_PREFIX_OFFSET, 16, 1,
1459				       buff, I40E_LLDPDU_SIZE, true);
1460			kfree(buff);
1461			buff = NULL;
1462		} else if (strncmp(&cmd_buf[5], "get remote", 10) == 0) {
1463			u16 llen, rlen;
1464			int ret;
1465			u8 *buff;
1466
1467			buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1468			if (!buff)
1469				goto command_write_done;
1470
1471			ret = i40e_aq_get_lldp_mib(&pf->hw,
1472					I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE,
1473					I40E_AQ_LLDP_MIB_REMOTE,
1474					buff, I40E_LLDPDU_SIZE,
1475					&llen, &rlen, NULL);
1476			if (ret) {
1477				dev_info(&pf->pdev->dev,
1478					 "Get LLDP MIB (remote) AQ command failed =0x%x\n",
1479					 pf->hw.aq.asq_last_status);
1480				kfree(buff);
1481				buff = NULL;
1482				goto command_write_done;
1483			}
1484			dev_info(&pf->pdev->dev, "LLDP MIB (remote)\n");
1485			print_hex_dump(KERN_INFO, "LLDP MIB (remote): ",
1486				       DUMP_PREFIX_OFFSET, 16, 1,
1487				       buff, I40E_LLDPDU_SIZE, true);
1488			kfree(buff);
1489			buff = NULL;
1490		} else if (strncmp(&cmd_buf[5], "event on", 8) == 0) {
1491			int ret;
1492
1493			ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1494								true, NULL);
1495			if (ret) {
1496				dev_info(&pf->pdev->dev,
1497					 "Config LLDP MIB Change Event (on) AQ command failed =0x%x\n",
1498					 pf->hw.aq.asq_last_status);
1499				goto command_write_done;
1500			}
1501		} else if (strncmp(&cmd_buf[5], "event off", 9) == 0) {
1502			int ret;
1503
1504			ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1505								false, NULL);
1506			if (ret) {
1507				dev_info(&pf->pdev->dev,
1508					 "Config LLDP MIB Change Event (off) AQ command failed =0x%x\n",
1509					 pf->hw.aq.asq_last_status);
1510				goto command_write_done;
1511			}
1512		}
1513	} else if (strncmp(cmd_buf, "nvm read", 8) == 0) {
1514		u16 buffer_len, bytes;
1515		u16 module;
1516		u32 offset;
1517		u16 *buff;
1518		int ret;
1519
1520		cnt = sscanf(&cmd_buf[8], "%hx %x %hx",
1521			     &module, &offset, &buffer_len);
1522		if (cnt == 0) {
1523			module = 0;
1524			offset = 0;
1525			buffer_len = 0;
1526		} else if (cnt == 1) {
1527			offset = 0;
1528			buffer_len = 0;
1529		} else if (cnt == 2) {
1530			buffer_len = 0;
1531		} else if (cnt > 3) {
1532			dev_info(&pf->pdev->dev,
1533				 "nvm read: bad command string, cnt=%d\n", cnt);
1534			goto command_write_done;
1535		}
1536
1537		/* set the max length */
1538		buffer_len = min_t(u16, buffer_len, I40E_MAX_AQ_BUF_SIZE/2);
1539
1540		bytes = 2 * buffer_len;
1541
1542		/* read at least 1k bytes, no more than 4kB */
1543		bytes = clamp(bytes, (u16)1024, (u16)I40E_MAX_AQ_BUF_SIZE);
1544		buff = kzalloc(bytes, GFP_KERNEL);
1545		if (!buff)
1546			goto command_write_done;
1547
1548		ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ);
1549		if (ret) {
1550			dev_info(&pf->pdev->dev,
1551				 "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1552				 ret, pf->hw.aq.asq_last_status);
1553			kfree(buff);
1554			goto command_write_done;
1555		}
1556
1557		ret = i40e_aq_read_nvm(&pf->hw, module, (2 * offset),
1558				       bytes, (u8 *)buff, true, NULL);
1559		i40e_release_nvm(&pf->hw);
1560		if (ret) {
1561			dev_info(&pf->pdev->dev,
1562				 "Read NVM AQ failed err=%d status=0x%x\n",
1563				 ret, pf->hw.aq.asq_last_status);
1564		} else {
1565			dev_info(&pf->pdev->dev,
1566				 "Read NVM module=0x%x offset=0x%x words=%d\n",
1567				 module, offset, buffer_len);
1568			if (bytes)
1569				print_hex_dump(KERN_INFO, "NVM Dump: ",
1570					DUMP_PREFIX_OFFSET, 16, 2,
1571					buff, bytes, true);
1572		}
1573		kfree(buff);
1574		buff = NULL;
1575	} else {
1576		dev_info(&pf->pdev->dev, "unknown command '%s'\n", cmd_buf);
1577		dev_info(&pf->pdev->dev, "available commands\n");
1578		dev_info(&pf->pdev->dev, "  add vsi [relay_seid]\n");
1579		dev_info(&pf->pdev->dev, "  del vsi [vsi_seid]\n");
1580		dev_info(&pf->pdev->dev, "  add relay <uplink_seid> <vsi_seid>\n");
1581		dev_info(&pf->pdev->dev, "  del relay <relay_seid>\n");
1582		dev_info(&pf->pdev->dev, "  add pvid <vsi_seid> <vid>\n");
1583		dev_info(&pf->pdev->dev, "  del pvid <vsi_seid>\n");
1584		dev_info(&pf->pdev->dev, "  dump switch\n");
1585		dev_info(&pf->pdev->dev, "  dump vsi [seid]\n");
1586		dev_info(&pf->pdev->dev, "  dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1587		dev_info(&pf->pdev->dev, "  dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1588		dev_info(&pf->pdev->dev, "  dump desc xdp <vsi_seid> <ring_id> [<desc_n>]\n");
1589		dev_info(&pf->pdev->dev, "  dump desc aq\n");
1590		dev_info(&pf->pdev->dev, "  dump reset stats\n");
1591		dev_info(&pf->pdev->dev, "  dump debug fwdata <cluster_id> <table_id> <index>\n");
1592		dev_info(&pf->pdev->dev, "  read <reg>\n");
1593		dev_info(&pf->pdev->dev, "  write <reg> <value>\n");
1594		dev_info(&pf->pdev->dev, "  clear_stats vsi [seid]\n");
1595		dev_info(&pf->pdev->dev, "  clear_stats port\n");
1596		dev_info(&pf->pdev->dev, "  pfr\n");
1597		dev_info(&pf->pdev->dev, "  corer\n");
1598		dev_info(&pf->pdev->dev, "  globr\n");
1599		dev_info(&pf->pdev->dev, "  send aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3>\n");
1600		dev_info(&pf->pdev->dev, "  send indirect aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3> <buffer_len>\n");
1601		dev_info(&pf->pdev->dev, "  fd current cnt");
1602		dev_info(&pf->pdev->dev, "  lldp start\n");
1603		dev_info(&pf->pdev->dev, "  lldp stop\n");
1604		dev_info(&pf->pdev->dev, "  lldp get local\n");
1605		dev_info(&pf->pdev->dev, "  lldp get remote\n");
1606		dev_info(&pf->pdev->dev, "  lldp event on\n");
1607		dev_info(&pf->pdev->dev, "  lldp event off\n");
1608		dev_info(&pf->pdev->dev, "  nvm read [module] [word_offset] [word_count]\n");
1609	}
1610
1611command_write_done:
1612	kfree(cmd_buf);
1613	cmd_buf = NULL;
1614	return count;
1615}
1616
1617static const struct file_operations i40e_dbg_command_fops = {
1618	.owner = THIS_MODULE,
1619	.open =  simple_open,
1620	.read =  i40e_dbg_command_read,
1621	.write = i40e_dbg_command_write,
1622};
1623
1624/**************************************************************
1625 * netdev_ops
1626 * The netdev_ops entry in debugfs is for giving the driver commands
1627 * to be executed from the netdev operations.
1628 **************************************************************/
1629static char i40e_dbg_netdev_ops_buf[256] = "";
1630
1631/**
1632 * i40e_dbg_netdev_ops_read - read for netdev_ops datum
1633 * @filp: the opened file
1634 * @buffer: where to write the data for the user to read
1635 * @count: the size of the user's buffer
1636 * @ppos: file position offset
1637 **/
1638static ssize_t i40e_dbg_netdev_ops_read(struct file *filp, char __user *buffer,
1639					size_t count, loff_t *ppos)
1640{
1641	struct i40e_pf *pf = filp->private_data;
1642	int bytes_not_copied;
1643	int buf_size = 256;
1644	char *buf;
1645	int len;
1646
1647	/* don't allow partal reads */
1648	if (*ppos != 0)
1649		return 0;
1650	if (count < buf_size)
1651		return -ENOSPC;
1652
1653	buf = kzalloc(buf_size, GFP_KERNEL);
1654	if (!buf)
1655		return -ENOSPC;
1656
1657	len = snprintf(buf, buf_size, "%s: %s\n",
1658		       pf->vsi[pf->lan_vsi]->netdev->name,
1659		       i40e_dbg_netdev_ops_buf);
1660
1661	bytes_not_copied = copy_to_user(buffer, buf, len);
1662	kfree(buf);
1663
1664	if (bytes_not_copied)
1665		return -EFAULT;
1666
1667	*ppos = len;
1668	return len;
1669}
1670
1671/**
1672 * i40e_dbg_netdev_ops_write - write into netdev_ops datum
1673 * @filp: the opened file
1674 * @buffer: where to find the user's data
1675 * @count: the length of the user's data
1676 * @ppos: file position offset
1677 **/
1678static ssize_t i40e_dbg_netdev_ops_write(struct file *filp,
1679					 const char __user *buffer,
1680					 size_t count, loff_t *ppos)
1681{
1682	struct i40e_pf *pf = filp->private_data;
1683	int bytes_not_copied;
1684	struct i40e_vsi *vsi;
1685	char *buf_tmp;
1686	int vsi_seid;
1687	int i, cnt;
1688
1689	/* don't allow partial writes */
1690	if (*ppos != 0)
1691		return 0;
1692	if (count >= sizeof(i40e_dbg_netdev_ops_buf))
1693		return -ENOSPC;
1694
1695	memset(i40e_dbg_netdev_ops_buf, 0, sizeof(i40e_dbg_netdev_ops_buf));
1696	bytes_not_copied = copy_from_user(i40e_dbg_netdev_ops_buf,
1697					  buffer, count);
1698	if (bytes_not_copied)
1699		return -EFAULT;
1700	i40e_dbg_netdev_ops_buf[count] = '\0';
1701
1702	buf_tmp = strchr(i40e_dbg_netdev_ops_buf, '\n');
1703	if (buf_tmp) {
1704		*buf_tmp = '\0';
1705		count = buf_tmp - i40e_dbg_netdev_ops_buf + 1;
1706	}
1707
1708	if (strncmp(i40e_dbg_netdev_ops_buf, "change_mtu", 10) == 0) {
1709		int mtu;
1710
1711		cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i %i",
1712			     &vsi_seid, &mtu);
1713		if (cnt != 2) {
1714			dev_info(&pf->pdev->dev, "change_mtu <vsi_seid> <mtu>\n");
1715			goto netdev_ops_write_done;
1716		}
1717		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1718		if (!vsi) {
1719			dev_info(&pf->pdev->dev,
1720				 "change_mtu: VSI %d not found\n", vsi_seid);
1721		} else if (!vsi->netdev) {
1722			dev_info(&pf->pdev->dev, "change_mtu: no netdev for VSI %d\n",
1723				 vsi_seid);
1724		} else if (rtnl_trylock()) {
1725			vsi->netdev->netdev_ops->ndo_change_mtu(vsi->netdev,
1726								mtu);
1727			rtnl_unlock();
1728			dev_info(&pf->pdev->dev, "change_mtu called\n");
1729		} else {
1730			dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1731		}
1732
1733	} else if (strncmp(i40e_dbg_netdev_ops_buf, "set_rx_mode", 11) == 0) {
1734		cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
1735		if (cnt != 1) {
1736			dev_info(&pf->pdev->dev, "set_rx_mode <vsi_seid>\n");
1737			goto netdev_ops_write_done;
1738		}
1739		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1740		if (!vsi) {
1741			dev_info(&pf->pdev->dev,
1742				 "set_rx_mode: VSI %d not found\n", vsi_seid);
1743		} else if (!vsi->netdev) {
1744			dev_info(&pf->pdev->dev, "set_rx_mode: no netdev for VSI %d\n",
1745				 vsi_seid);
1746		} else if (rtnl_trylock()) {
1747			vsi->netdev->netdev_ops->ndo_set_rx_mode(vsi->netdev);
1748			rtnl_unlock();
1749			dev_info(&pf->pdev->dev, "set_rx_mode called\n");
1750		} else {
1751			dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1752		}
1753
1754	} else if (strncmp(i40e_dbg_netdev_ops_buf, "napi", 4) == 0) {
1755		cnt = sscanf(&i40e_dbg_netdev_ops_buf[4], "%i", &vsi_seid);
1756		if (cnt != 1) {
1757			dev_info(&pf->pdev->dev, "napi <vsi_seid>\n");
1758			goto netdev_ops_write_done;
1759		}
1760		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1761		if (!vsi) {
1762			dev_info(&pf->pdev->dev, "napi: VSI %d not found\n",
1763				 vsi_seid);
1764		} else if (!vsi->netdev) {
1765			dev_info(&pf->pdev->dev, "napi: no netdev for VSI %d\n",
1766				 vsi_seid);
1767		} else {
1768			for (i = 0; i < vsi->num_q_vectors; i++)
1769				napi_schedule(&vsi->q_vectors[i]->napi);
1770			dev_info(&pf->pdev->dev, "napi called\n");
1771		}
1772	} else {
1773		dev_info(&pf->pdev->dev, "unknown command '%s'\n",
1774			 i40e_dbg_netdev_ops_buf);
1775		dev_info(&pf->pdev->dev, "available commands\n");
1776		dev_info(&pf->pdev->dev, "  change_mtu <vsi_seid> <mtu>\n");
1777		dev_info(&pf->pdev->dev, "  set_rx_mode <vsi_seid>\n");
1778		dev_info(&pf->pdev->dev, "  napi <vsi_seid>\n");
1779	}
1780netdev_ops_write_done:
1781	return count;
1782}
1783
1784static const struct file_operations i40e_dbg_netdev_ops_fops = {
1785	.owner = THIS_MODULE,
1786	.open = simple_open,
1787	.read = i40e_dbg_netdev_ops_read,
1788	.write = i40e_dbg_netdev_ops_write,
1789};
1790
1791/**
1792 * i40e_dbg_pf_init - setup the debugfs directory for the PF
1793 * @pf: the PF that is starting up
1794 **/
1795void i40e_dbg_pf_init(struct i40e_pf *pf)
1796{
1797	const char *name = pci_name(pf->pdev);
1798
1799	pf->i40e_dbg_pf = debugfs_create_dir(name, i40e_dbg_root);
1800
1801	debugfs_create_file("command", 0600, pf->i40e_dbg_pf, pf,
1802			    &i40e_dbg_command_fops);
1803
1804	debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf, pf,
1805			    &i40e_dbg_netdev_ops_fops);
1806}
1807
1808/**
1809 * i40e_dbg_pf_exit - clear out the PF's debugfs entries
1810 * @pf: the PF that is stopping
1811 **/
1812void i40e_dbg_pf_exit(struct i40e_pf *pf)
1813{
1814	debugfs_remove_recursive(pf->i40e_dbg_pf);
1815	pf->i40e_dbg_pf = NULL;
1816}
1817
1818/**
1819 * i40e_dbg_init - start up debugfs for the driver
1820 **/
1821void i40e_dbg_init(void)
1822{
1823	i40e_dbg_root = debugfs_create_dir(i40e_driver_name, NULL);
1824	if (IS_ERR(i40e_dbg_root))
1825		pr_info("init of debugfs failed\n");
1826}
1827
1828/**
1829 * i40e_dbg_exit - clean out the driver's debugfs entries
1830 **/
1831void i40e_dbg_exit(void)
1832{
1833	debugfs_remove_recursive(i40e_dbg_root);
1834	i40e_dbg_root = NULL;
1835}
1836
1837#endif /* CONFIG_DEBUG_FS */