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	struct i40e_vsi *main_vsi;
  57	int bytes_not_copied;
  58	int buf_size = 256;
  59	char *buf;
  60	int len;
  61
  62	/* don't allow partial reads */
  63	if (*ppos != 0)
  64		return 0;
  65	if (count < buf_size)
  66		return -ENOSPC;
  67
  68	buf = kzalloc(buf_size, GFP_KERNEL);
  69	if (!buf)
  70		return -ENOSPC;
  71
  72	main_vsi = i40e_pf_get_main_vsi(pf);
  73	len = snprintf(buf, buf_size, "%s: %s\n", main_vsi->netdev->name,
  74		       i40e_dbg_command_buf);
  75
  76	bytes_not_copied = copy_to_user(buffer, buf, len);
  77	kfree(buf);
  78
  79	if (bytes_not_copied)
  80		return -EFAULT;
  81
  82	*ppos = len;
  83	return len;
  84}
  85
  86static char *i40e_filter_state_string[] = {
  87	"INVALID",
  88	"NEW",
  89	"ACTIVE",
  90	"FAILED",
  91	"REMOVE",
  92	"NEW_SYNC",
  93};
  94
  95/**
  96 * i40e_dbg_dump_vsi_seid - handles dump vsi seid write into command datum
  97 * @pf: the i40e_pf created in command write
  98 * @seid: the seid the user put in
  99 **/
 100static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid)
 101{
 102	struct rtnl_link_stats64 *nstat;
 103	struct i40e_mac_filter *f;
 104	struct i40e_vsi *vsi;
 105	int i, bkt;
 106
 107	vsi = i40e_dbg_find_vsi(pf, seid);
 108	if (!vsi) {
 109		dev_info(&pf->pdev->dev,
 110			 "dump %d: seid not found\n", seid);
 111		return;
 112	}
 113	dev_info(&pf->pdev->dev, "vsi seid %d\n", seid);
 114	if (vsi->netdev) {
 115		struct net_device *nd = vsi->netdev;
 116
 117		dev_info(&pf->pdev->dev, "    netdev: name = %s, state = %lu, flags = 0x%08x\n",
 118			 nd->name, nd->state, nd->flags);
 119		dev_info(&pf->pdev->dev, "        features      = 0x%08lx\n",
 120			 (unsigned long int)nd->features);
 121		dev_info(&pf->pdev->dev, "        hw_features   = 0x%08lx\n",
 122			 (unsigned long int)nd->hw_features);
 123		dev_info(&pf->pdev->dev, "        vlan_features = 0x%08lx\n",
 124			 (unsigned long int)nd->vlan_features);
 125	}
 126	dev_info(&pf->pdev->dev,
 127		 "    flags = 0x%08lx, netdev_registered = %i, current_netdev_flags = 0x%04x\n",
 128		 vsi->flags, vsi->netdev_registered, vsi->current_netdev_flags);
 129	for (i = 0; i < BITS_TO_LONGS(__I40E_VSI_STATE_SIZE__); i++)
 130		dev_info(&pf->pdev->dev,
 131			 "    state[%d] = %08lx\n",
 132			 i, vsi->state[i]);
 133	if (vsi->type == I40E_VSI_MAIN)
 134		dev_info(&pf->pdev->dev, "    MAC address: %pM Port MAC: %pM\n",
 135			 pf->hw.mac.addr,
 136			 pf->hw.mac.port_addr);
 137	hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
 138		dev_info(&pf->pdev->dev,
 139			 "    mac_filter_hash: %pM vid=%d, state %s\n",
 140			 f->macaddr, f->vlan,
 141			 i40e_filter_state_string[f->state]);
 142	}
 143	dev_info(&pf->pdev->dev, "    active_filters %u, promisc_threshold %u, overflow promisc %s\n",
 144		 vsi->active_filters, vsi->promisc_threshold,
 145		 (test_bit(__I40E_VSI_OVERFLOW_PROMISC, vsi->state) ?
 146		  "ON" : "OFF"));
 147	nstat = i40e_get_vsi_stats_struct(vsi);
 148	dev_info(&pf->pdev->dev,
 149		 "    net_stats: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
 150		 (unsigned long int)nstat->rx_packets,
 151		 (unsigned long int)nstat->rx_bytes,
 152		 (unsigned long int)nstat->rx_errors,
 153		 (unsigned long int)nstat->rx_dropped);
 154	dev_info(&pf->pdev->dev,
 155		 "    net_stats: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
 156		 (unsigned long int)nstat->tx_packets,
 157		 (unsigned long int)nstat->tx_bytes,
 158		 (unsigned long int)nstat->tx_errors,
 159		 (unsigned long int)nstat->tx_dropped);
 160	dev_info(&pf->pdev->dev,
 161		 "    net_stats: multicast = %lu, collisions = %lu\n",
 162		 (unsigned long int)nstat->multicast,
 163		 (unsigned long int)nstat->collisions);
 164	dev_info(&pf->pdev->dev,
 165		 "    net_stats: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
 166		 (unsigned long int)nstat->rx_length_errors,
 167		 (unsigned long int)nstat->rx_over_errors,
 168		 (unsigned long int)nstat->rx_crc_errors);
 169	dev_info(&pf->pdev->dev,
 170		 "    net_stats: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
 171		 (unsigned long int)nstat->rx_frame_errors,
 172		 (unsigned long int)nstat->rx_fifo_errors,
 173		 (unsigned long int)nstat->rx_missed_errors);
 174	dev_info(&pf->pdev->dev,
 175		 "    net_stats: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
 176		 (unsigned long int)nstat->tx_aborted_errors,
 177		 (unsigned long int)nstat->tx_carrier_errors,
 178		 (unsigned long int)nstat->tx_fifo_errors);
 179	dev_info(&pf->pdev->dev,
 180		 "    net_stats: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
 181		 (unsigned long int)nstat->tx_heartbeat_errors,
 182		 (unsigned long int)nstat->tx_window_errors);
 183	dev_info(&pf->pdev->dev,
 184		 "    net_stats: rx_compressed = %lu, tx_compressed = %lu\n",
 185		 (unsigned long int)nstat->rx_compressed,
 186		 (unsigned long int)nstat->tx_compressed);
 187	dev_info(&pf->pdev->dev,
 188		 "    net_stats_offsets: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
 189		 (unsigned long int)vsi->net_stats_offsets.rx_packets,
 190		 (unsigned long int)vsi->net_stats_offsets.rx_bytes,
 191		 (unsigned long int)vsi->net_stats_offsets.rx_errors,
 192		 (unsigned long int)vsi->net_stats_offsets.rx_dropped);
 193	dev_info(&pf->pdev->dev,
 194		 "    net_stats_offsets: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
 195		 (unsigned long int)vsi->net_stats_offsets.tx_packets,
 196		 (unsigned long int)vsi->net_stats_offsets.tx_bytes,
 197		 (unsigned long int)vsi->net_stats_offsets.tx_errors,
 198		 (unsigned long int)vsi->net_stats_offsets.tx_dropped);
 199	dev_info(&pf->pdev->dev,
 200		 "    net_stats_offsets: multicast = %lu, collisions = %lu\n",
 201		 (unsigned long int)vsi->net_stats_offsets.multicast,
 202		 (unsigned long int)vsi->net_stats_offsets.collisions);
 203	dev_info(&pf->pdev->dev,
 204		 "    net_stats_offsets: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
 205		 (unsigned long int)vsi->net_stats_offsets.rx_length_errors,
 206		 (unsigned long int)vsi->net_stats_offsets.rx_over_errors,
 207		 (unsigned long int)vsi->net_stats_offsets.rx_crc_errors);
 208	dev_info(&pf->pdev->dev,
 209		 "    net_stats_offsets: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
 210		 (unsigned long int)vsi->net_stats_offsets.rx_frame_errors,
 211		 (unsigned long int)vsi->net_stats_offsets.rx_fifo_errors,
 212		 (unsigned long int)vsi->net_stats_offsets.rx_missed_errors);
 213	dev_info(&pf->pdev->dev,
 214		 "    net_stats_offsets: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
 215		 (unsigned long int)vsi->net_stats_offsets.tx_aborted_errors,
 216		 (unsigned long int)vsi->net_stats_offsets.tx_carrier_errors,
 217		 (unsigned long int)vsi->net_stats_offsets.tx_fifo_errors);
 218	dev_info(&pf->pdev->dev,
 219		 "    net_stats_offsets: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
 220		 (unsigned long int)vsi->net_stats_offsets.tx_heartbeat_errors,
 221		 (unsigned long int)vsi->net_stats_offsets.tx_window_errors);
 222	dev_info(&pf->pdev->dev,
 223		 "    net_stats_offsets: rx_compressed = %lu, tx_compressed = %lu\n",
 224		 (unsigned long int)vsi->net_stats_offsets.rx_compressed,
 225		 (unsigned long int)vsi->net_stats_offsets.tx_compressed);
 226	dev_info(&pf->pdev->dev,
 227		 "    tx_restart = %llu, tx_busy = %llu, rx_buf_failed = %llu, rx_page_failed = %llu\n",
 228		 vsi->tx_restart, vsi->tx_busy,
 229		 vsi->rx_buf_failed, vsi->rx_page_failed);
 230	rcu_read_lock();
 231	for (i = 0; i < vsi->num_queue_pairs; i++) {
 232		struct i40e_ring *rx_ring = READ_ONCE(vsi->rx_rings[i]);
 233
 234		if (!rx_ring)
 235			continue;
 236
 237		dev_info(&pf->pdev->dev,
 238			 "    rx_rings[%i]: state = %lu, queue_index = %d, reg_idx = %d\n",
 239			 i, *rx_ring->state,
 240			 rx_ring->queue_index,
 241			 rx_ring->reg_idx);
 242		dev_info(&pf->pdev->dev,
 243			 "    rx_rings[%i]: rx_buf_len = %d\n",
 244			 i, rx_ring->rx_buf_len);
 245		dev_info(&pf->pdev->dev,
 246			 "    rx_rings[%i]: next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
 247			 i,
 248			 rx_ring->next_to_use,
 249			 rx_ring->next_to_clean,
 250			 rx_ring->ring_active);
 251		dev_info(&pf->pdev->dev,
 252			 "    rx_rings[%i]: rx_stats: packets = %lld, bytes = %lld, non_eop_descs = %lld\n",
 253			 i, rx_ring->stats.packets,
 254			 rx_ring->stats.bytes,
 255			 rx_ring->rx_stats.non_eop_descs);
 256		dev_info(&pf->pdev->dev,
 257			 "    rx_rings[%i]: rx_stats: alloc_page_failed = %lld, alloc_buff_failed = %lld\n",
 258			 i,
 259			 rx_ring->rx_stats.alloc_page_failed,
 260			 rx_ring->rx_stats.alloc_buff_failed);
 261		dev_info(&pf->pdev->dev,
 262			 "    rx_rings[%i]: rx_stats: realloc_count = 0, page_reuse_count = %lld\n",
 263			 i,
 264			 rx_ring->rx_stats.page_reuse_count);
 265		dev_info(&pf->pdev->dev,
 266			 "    rx_rings[%i]: size = %i\n",
 267			 i, rx_ring->size);
 268		dev_info(&pf->pdev->dev,
 269			 "    rx_rings[%i]: itr_setting = %d (%s)\n",
 270			 i, rx_ring->itr_setting,
 271			 ITR_IS_DYNAMIC(rx_ring->itr_setting) ? "dynamic" : "fixed");
 272	}
 273	for (i = 0; i < vsi->num_queue_pairs; i++) {
 274		struct i40e_ring *tx_ring = READ_ONCE(vsi->tx_rings[i]);
 275
 276		if (!tx_ring)
 277			continue;
 278
 279		dev_info(&pf->pdev->dev,
 280			 "    tx_rings[%i]: state = %lu, queue_index = %d, reg_idx = %d\n",
 281			 i, *tx_ring->state,
 282			 tx_ring->queue_index,
 283			 tx_ring->reg_idx);
 284		dev_info(&pf->pdev->dev,
 285			 "    tx_rings[%i]: next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
 286			 i,
 287			 tx_ring->next_to_use,
 288			 tx_ring->next_to_clean,
 289			 tx_ring->ring_active);
 290		dev_info(&pf->pdev->dev,
 291			 "    tx_rings[%i]: tx_stats: packets = %lld, bytes = %lld, restart_queue = %lld\n",
 292			 i, tx_ring->stats.packets,
 293			 tx_ring->stats.bytes,
 294			 tx_ring->tx_stats.restart_queue);
 295		dev_info(&pf->pdev->dev,
 296			 "    tx_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld, tx_stopped = %lld\n",
 297			 i,
 298			 tx_ring->tx_stats.tx_busy,
 299			 tx_ring->tx_stats.tx_done_old,
 300			 tx_ring->tx_stats.tx_stopped);
 301		dev_info(&pf->pdev->dev,
 302			 "    tx_rings[%i]: size = %i\n",
 303			 i, tx_ring->size);
 304		dev_info(&pf->pdev->dev,
 305			 "    tx_rings[%i]: DCB tc = %d\n",
 306			 i, tx_ring->dcb_tc);
 307		dev_info(&pf->pdev->dev,
 308			 "    tx_rings[%i]: itr_setting = %d (%s)\n",
 309			 i, tx_ring->itr_setting,
 310			 ITR_IS_DYNAMIC(tx_ring->itr_setting) ? "dynamic" : "fixed");
 311	}
 312	if (i40e_enabled_xdp_vsi(vsi)) {
 313		for (i = 0; i < vsi->num_queue_pairs; i++) {
 314			struct i40e_ring *xdp_ring = READ_ONCE(vsi->xdp_rings[i]);
 315
 316			if (!xdp_ring)
 317				continue;
 318
 319			dev_info(&pf->pdev->dev,
 320				 "    xdp_rings[%i]: state = %lu, queue_index = %d, reg_idx = %d\n",
 321				 i, *xdp_ring->state,
 322				 xdp_ring->queue_index,
 323				 xdp_ring->reg_idx);
 324			dev_info(&pf->pdev->dev,
 325				 "    xdp_rings[%i]: next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
 326				 i,
 327				 xdp_ring->next_to_use,
 328				 xdp_ring->next_to_clean,
 329				 xdp_ring->ring_active);
 330			dev_info(&pf->pdev->dev,
 331				 "    xdp_rings[%i]: tx_stats: packets = %lld, bytes = %lld, restart_queue = %lld\n",
 332				 i, xdp_ring->stats.packets,
 333				 xdp_ring->stats.bytes,
 334				 xdp_ring->tx_stats.restart_queue);
 335			dev_info(&pf->pdev->dev,
 336				 "    xdp_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld\n",
 337				 i,
 338				 xdp_ring->tx_stats.tx_busy,
 339				 xdp_ring->tx_stats.tx_done_old);
 340			dev_info(&pf->pdev->dev,
 341				 "    xdp_rings[%i]: size = %i\n",
 342				 i, xdp_ring->size);
 343			dev_info(&pf->pdev->dev,
 344				 "    xdp_rings[%i]: DCB tc = %d\n",
 345				 i, xdp_ring->dcb_tc);
 346			dev_info(&pf->pdev->dev,
 347				 "    xdp_rings[%i]: itr_setting = %d (%s)\n",
 348				 i, xdp_ring->itr_setting,
 349				 ITR_IS_DYNAMIC(xdp_ring->itr_setting) ?
 350				 "dynamic" : "fixed");
 351		}
 352	}
 353	rcu_read_unlock();
 354	dev_info(&pf->pdev->dev,
 355		 "    work_limit = %d\n",
 356		 vsi->work_limit);
 357	dev_info(&pf->pdev->dev,
 358		 "    max_frame = %d, rx_buf_len = %d dtype = %d\n",
 359		 vsi->max_frame, vsi->rx_buf_len, 0);
 360	dev_info(&pf->pdev->dev,
 361		 "    num_q_vectors = %i, base_vector = %i\n",
 362		 vsi->num_q_vectors, vsi->base_vector);
 363	dev_info(&pf->pdev->dev,
 364		 "    seid = %d, id = %d, uplink_seid = %d\n",
 365		 vsi->seid, vsi->id, vsi->uplink_seid);
 366	dev_info(&pf->pdev->dev,
 367		 "    base_queue = %d, num_queue_pairs = %d, num_tx_desc = %d, num_rx_desc = %d\n",
 368		 vsi->base_queue, vsi->num_queue_pairs, vsi->num_tx_desc,
 369		 vsi->num_rx_desc);
 370	dev_info(&pf->pdev->dev, "    type = %i\n", vsi->type);
 371	if (vsi->type == I40E_VSI_SRIOV)
 372		dev_info(&pf->pdev->dev, "    VF ID = %i\n", vsi->vf_id);
 373	dev_info(&pf->pdev->dev,
 374		 "    info: valid_sections = 0x%04x, switch_id = 0x%04x\n",
 375		 vsi->info.valid_sections, vsi->info.switch_id);
 376	dev_info(&pf->pdev->dev,
 377		 "    info: sw_reserved[] = 0x%02x 0x%02x\n",
 378		 vsi->info.sw_reserved[0], vsi->info.sw_reserved[1]);
 379	dev_info(&pf->pdev->dev,
 380		 "    info: sec_flags = 0x%02x, sec_reserved = 0x%02x\n",
 381		 vsi->info.sec_flags, vsi->info.sec_reserved);
 382	dev_info(&pf->pdev->dev,
 383		 "    info: pvid = 0x%04x, fcoe_pvid = 0x%04x, port_vlan_flags = 0x%02x\n",
 384		 vsi->info.pvid, vsi->info.fcoe_pvid,
 385		 vsi->info.port_vlan_flags);
 386	dev_info(&pf->pdev->dev,
 387		 "    info: pvlan_reserved[] = 0x%02x 0x%02x 0x%02x\n",
 388		 vsi->info.pvlan_reserved[0], vsi->info.pvlan_reserved[1],
 389		 vsi->info.pvlan_reserved[2]);
 390	dev_info(&pf->pdev->dev,
 391		 "    info: ingress_table = 0x%08x, egress_table = 0x%08x\n",
 392		 vsi->info.ingress_table, vsi->info.egress_table);
 393	dev_info(&pf->pdev->dev,
 394		 "    info: cas_pv_stag = 0x%04x, cas_pv_flags= 0x%02x, cas_pv_reserved = 0x%02x\n",
 395		 vsi->info.cas_pv_tag, vsi->info.cas_pv_flags,
 396		 vsi->info.cas_pv_reserved);
 397	dev_info(&pf->pdev->dev,
 398		 "    info: queue_mapping[0..7 ] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 399		 vsi->info.queue_mapping[0], vsi->info.queue_mapping[1],
 400		 vsi->info.queue_mapping[2], vsi->info.queue_mapping[3],
 401		 vsi->info.queue_mapping[4], vsi->info.queue_mapping[5],
 402		 vsi->info.queue_mapping[6], vsi->info.queue_mapping[7]);
 403	dev_info(&pf->pdev->dev,
 404		 "    info: queue_mapping[8..15] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 405		 vsi->info.queue_mapping[8], vsi->info.queue_mapping[9],
 406		 vsi->info.queue_mapping[10], vsi->info.queue_mapping[11],
 407		 vsi->info.queue_mapping[12], vsi->info.queue_mapping[13],
 408		 vsi->info.queue_mapping[14], vsi->info.queue_mapping[15]);
 409	dev_info(&pf->pdev->dev,
 410		 "    info: tc_mapping[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 411		 vsi->info.tc_mapping[0], vsi->info.tc_mapping[1],
 412		 vsi->info.tc_mapping[2], vsi->info.tc_mapping[3],
 413		 vsi->info.tc_mapping[4], vsi->info.tc_mapping[5],
 414		 vsi->info.tc_mapping[6], vsi->info.tc_mapping[7]);
 415	dev_info(&pf->pdev->dev,
 416		 "    info: queueing_opt_flags = 0x%02x  queueing_opt_reserved[0..2] = 0x%02x 0x%02x 0x%02x\n",
 417		 vsi->info.queueing_opt_flags,
 418		 vsi->info.queueing_opt_reserved[0],
 419		 vsi->info.queueing_opt_reserved[1],
 420		 vsi->info.queueing_opt_reserved[2]);
 421	dev_info(&pf->pdev->dev,
 422		 "    info: up_enable_bits = 0x%02x\n",
 423		 vsi->info.up_enable_bits);
 424	dev_info(&pf->pdev->dev,
 425		 "    info: sched_reserved = 0x%02x, outer_up_table = 0x%04x\n",
 426		 vsi->info.sched_reserved, vsi->info.outer_up_table);
 427	dev_info(&pf->pdev->dev,
 428		 "    info: cmd_reserved[] = 0x%02x 0x%02x 0x%02x 0x0%02x 0x%02x 0x%02x 0x%02x 0x0%02x\n",
 429		 vsi->info.cmd_reserved[0], vsi->info.cmd_reserved[1],
 430		 vsi->info.cmd_reserved[2], vsi->info.cmd_reserved[3],
 431		 vsi->info.cmd_reserved[4], vsi->info.cmd_reserved[5],
 432		 vsi->info.cmd_reserved[6], vsi->info.cmd_reserved[7]);
 433	dev_info(&pf->pdev->dev,
 434		 "    info: qs_handle[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 435		 vsi->info.qs_handle[0], vsi->info.qs_handle[1],
 436		 vsi->info.qs_handle[2], vsi->info.qs_handle[3],
 437		 vsi->info.qs_handle[4], vsi->info.qs_handle[5],
 438		 vsi->info.qs_handle[6], vsi->info.qs_handle[7]);
 439	dev_info(&pf->pdev->dev,
 440		 "    info: stat_counter_idx = 0x%04x, sched_id = 0x%04x\n",
 441		 vsi->info.stat_counter_idx, vsi->info.sched_id);
 442	dev_info(&pf->pdev->dev,
 443		 "    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",
 444		 vsi->info.resp_reserved[0], vsi->info.resp_reserved[1],
 445		 vsi->info.resp_reserved[2], vsi->info.resp_reserved[3],
 446		 vsi->info.resp_reserved[4], vsi->info.resp_reserved[5],
 447		 vsi->info.resp_reserved[6], vsi->info.resp_reserved[7],
 448		 vsi->info.resp_reserved[8], vsi->info.resp_reserved[9],
 449		 vsi->info.resp_reserved[10], vsi->info.resp_reserved[11]);
 450	dev_info(&pf->pdev->dev, "    idx = %d\n", vsi->idx);
 451	dev_info(&pf->pdev->dev,
 452		 "    tc_config: numtc = %d, enabled_tc = 0x%x\n",
 453		 vsi->tc_config.numtc, vsi->tc_config.enabled_tc);
 454	for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
 455		dev_info(&pf->pdev->dev,
 456			 "    tc_config: tc = %d, qoffset = %d, qcount = %d, netdev_tc = %d\n",
 457			 i, vsi->tc_config.tc_info[i].qoffset,
 458			 vsi->tc_config.tc_info[i].qcount,
 459			 vsi->tc_config.tc_info[i].netdev_tc);
 460	}
 461	dev_info(&pf->pdev->dev,
 462		 "    bw: bw_limit = %d, bw_max_quanta = %d\n",
 463		 vsi->bw_limit, vsi->bw_max_quanta);
 464	for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
 465		dev_info(&pf->pdev->dev,
 466			 "    bw[%d]: ets_share_credits = %d, ets_limit_credits = %d, max_quanta = %d\n",
 467			 i, vsi->bw_ets_share_credits[i],
 468			 vsi->bw_ets_limit_credits[i],
 469			 vsi->bw_ets_max_quanta[i]);
 470	}
 471}
 472
 473/**
 474 * i40e_dbg_dump_aq_desc - handles dump aq_desc write into command datum
 475 * @pf: the i40e_pf created in command write
 476 **/
 477static void i40e_dbg_dump_aq_desc(struct i40e_pf *pf)
 478{
 479	struct i40e_adminq_ring *ring;
 480	struct i40e_hw *hw = &pf->hw;
 481	char hdr[32];
 482	int i;
 483
 484	snprintf(hdr, sizeof(hdr), "%s %s:         ",
 485		 dev_driver_string(&pf->pdev->dev),
 486		 dev_name(&pf->pdev->dev));
 487
 488	/* first the send (command) ring, then the receive (event) ring */
 489	dev_info(&pf->pdev->dev, "AdminQ Tx Ring\n");
 490	ring = &(hw->aq.asq);
 491	for (i = 0; i < ring->count; i++) {
 492		struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
 493
 494		dev_info(&pf->pdev->dev,
 495			 "   at[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
 496			 i, d->flags, d->opcode, d->datalen, d->retval,
 497			 d->cookie_high, d->cookie_low);
 498		print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
 499			       16, 1, d->params.raw, 16, 0);
 500	}
 501
 502	dev_info(&pf->pdev->dev, "AdminQ Rx Ring\n");
 503	ring = &(hw->aq.arq);
 504	for (i = 0; i < ring->count; i++) {
 505		struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
 506
 507		dev_info(&pf->pdev->dev,
 508			 "   ar[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
 509			 i, d->flags, d->opcode, d->datalen, d->retval,
 510			 d->cookie_high, d->cookie_low);
 511		print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
 512			       16, 1, d->params.raw, 16, 0);
 513	}
 514}
 515
 516/**
 517 * i40e_dbg_dump_desc - handles dump desc write into command datum
 518 * @cnt: number of arguments that the user supplied
 519 * @vsi_seid: vsi id entered by user
 520 * @ring_id: ring id entered by user
 521 * @desc_n: descriptor number entered by user
 522 * @pf: the i40e_pf created in command write
 523 * @type: enum describing whether ring is RX, TX or XDP
 524 **/
 525static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n,
 526			       struct i40e_pf *pf, enum ring_type type)
 527{
 528	bool is_rx_ring = type == RING_TYPE_RX;
 529	struct i40e_tx_desc *txd;
 530	union i40e_rx_desc *rxd;
 531	struct i40e_ring *ring;
 532	struct i40e_vsi *vsi;
 533	int i;
 534
 535	vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 536	if (!vsi) {
 537		dev_info(&pf->pdev->dev, "vsi %d not found\n", vsi_seid);
 538		return;
 539	}
 540	if (vsi->type != I40E_VSI_MAIN &&
 541	    vsi->type != I40E_VSI_FDIR &&
 542	    vsi->type != I40E_VSI_VMDQ2) {
 543		dev_info(&pf->pdev->dev,
 544			 "vsi %d type %d descriptor rings not available\n",
 545			 vsi_seid, vsi->type);
 546		return;
 547	}
 548	if (type == RING_TYPE_XDP && !i40e_enabled_xdp_vsi(vsi)) {
 549		dev_info(&pf->pdev->dev, "XDP not enabled on VSI %d\n", vsi_seid);
 550		return;
 551	}
 552	if (ring_id >= vsi->num_queue_pairs || ring_id < 0) {
 553		dev_info(&pf->pdev->dev, "ring %d not found\n", ring_id);
 554		return;
 555	}
 556	if (!vsi->tx_rings || !vsi->tx_rings[0]->desc) {
 557		dev_info(&pf->pdev->dev,
 558			 "descriptor rings have not been allocated for vsi %d\n",
 559			 vsi_seid);
 560		return;
 561	}
 562
 563	switch (type) {
 564	case RING_TYPE_RX:
 565		ring = kmemdup(vsi->rx_rings[ring_id], sizeof(*ring), GFP_KERNEL);
 566		break;
 567	case RING_TYPE_TX:
 568		ring = kmemdup(vsi->tx_rings[ring_id], sizeof(*ring), GFP_KERNEL);
 569		break;
 570	case RING_TYPE_XDP:
 571		ring = kmemdup(vsi->xdp_rings[ring_id], sizeof(*ring), GFP_KERNEL);
 572		break;
 573	default:
 574		ring = NULL;
 575		break;
 576	}
 577	if (!ring)
 578		return;
 579
 580	if (cnt == 2) {
 581		switch (type) {
 582		case RING_TYPE_RX:
 583			dev_info(&pf->pdev->dev, "VSI = %02i Rx ring = %02i\n", vsi_seid, ring_id);
 584			break;
 585		case RING_TYPE_TX:
 586			dev_info(&pf->pdev->dev, "VSI = %02i Tx ring = %02i\n", vsi_seid, ring_id);
 587			break;
 588		case RING_TYPE_XDP:
 589			dev_info(&pf->pdev->dev, "VSI = %02i XDP ring = %02i\n", vsi_seid, ring_id);
 590			break;
 591		}
 592		for (i = 0; i < ring->count; i++) {
 593			if (!is_rx_ring) {
 594				txd = I40E_TX_DESC(ring, i);
 595				dev_info(&pf->pdev->dev,
 596					 "   d[%03x] = 0x%016llx 0x%016llx\n",
 597					 i, txd->buffer_addr,
 598					 txd->cmd_type_offset_bsz);
 599			} else {
 600				rxd = I40E_RX_DESC(ring, i);
 601				dev_info(&pf->pdev->dev,
 602					 "   d[%03x] = 0x%016llx 0x%016llx\n",
 603					 i, rxd->read.pkt_addr,
 604					 rxd->read.hdr_addr);
 605			}
 606		}
 607	} else if (cnt == 3) {
 608		if (desc_n >= ring->count || desc_n < 0) {
 609			dev_info(&pf->pdev->dev,
 610				 "descriptor %d not found\n", desc_n);
 611			goto out;
 612		}
 613		if (!is_rx_ring) {
 614			txd = I40E_TX_DESC(ring, desc_n);
 615			dev_info(&pf->pdev->dev,
 616				 "vsi = %02i tx ring = %02i d[%03x] = 0x%016llx 0x%016llx\n",
 617				 vsi_seid, ring_id, desc_n,
 618				 txd->buffer_addr, txd->cmd_type_offset_bsz);
 619		} else {
 620			rxd = I40E_RX_DESC(ring, desc_n);
 621			dev_info(&pf->pdev->dev,
 622				 "vsi = %02i rx ring = %02i d[%03x] = 0x%016llx 0x%016llx\n",
 623				 vsi_seid, ring_id, desc_n,
 624				 rxd->read.pkt_addr, rxd->read.hdr_addr);
 625		}
 626	} else {
 627		dev_info(&pf->pdev->dev, "dump desc rx/tx/xdp <vsi_seid> <ring_id> [<desc_n>]\n");
 628	}
 629
 630out:
 631	kfree(ring);
 632}
 633
 634/**
 635 * i40e_dbg_dump_vsi_no_seid - handles dump vsi write into command datum
 636 * @pf: the i40e_pf created in command write
 637 **/
 638static void i40e_dbg_dump_vsi_no_seid(struct i40e_pf *pf)
 639{
 640	struct i40e_vsi *vsi;
 641	int i;
 642
 643	i40e_pf_for_each_vsi(pf, i, vsi)
 644		dev_info(&pf->pdev->dev, "dump vsi[%d]: %d\n", i, vsi->seid);
 
 
 645}
 646
 647/**
 648 * i40e_dbg_dump_eth_stats - handles dump stats write into command datum
 649 * @pf: the i40e_pf created in command write
 650 * @estats: the eth stats structure to be dumped
 651 **/
 652static void i40e_dbg_dump_eth_stats(struct i40e_pf *pf,
 653				    struct i40e_eth_stats *estats)
 654{
 655	dev_info(&pf->pdev->dev, "  ethstats:\n");
 656	dev_info(&pf->pdev->dev,
 657		 "    rx_bytes = \t%lld \trx_unicast = \t\t%lld \trx_multicast = \t%lld\n",
 658		estats->rx_bytes, estats->rx_unicast, estats->rx_multicast);
 659	dev_info(&pf->pdev->dev,
 660		 "    rx_broadcast = \t%lld \trx_discards = \t\t%lld\n",
 661		 estats->rx_broadcast, estats->rx_discards);
 662	dev_info(&pf->pdev->dev,
 663		 "    rx_unknown_protocol = \t%lld \ttx_bytes = \t%lld\n",
 664		 estats->rx_unknown_protocol, estats->tx_bytes);
 665	dev_info(&pf->pdev->dev,
 666		 "    tx_unicast = \t%lld \ttx_multicast = \t\t%lld \ttx_broadcast = \t%lld\n",
 667		 estats->tx_unicast, estats->tx_multicast, estats->tx_broadcast);
 668	dev_info(&pf->pdev->dev,
 669		 "    tx_discards = \t%lld \ttx_errors = \t\t%lld\n",
 670		 estats->tx_discards, estats->tx_errors);
 671}
 672
 673/**
 674 * i40e_dbg_dump_veb_seid - handles dump stats of a single given veb
 675 * @pf: the i40e_pf created in command write
 676 * @seid: the seid the user put in
 677 **/
 678static void i40e_dbg_dump_veb_seid(struct i40e_pf *pf, int seid)
 679{
 680	struct i40e_veb *veb;
 681
 682	veb = i40e_pf_get_veb_by_seid(pf, seid);
 683	if (!veb) {
 684		dev_info(&pf->pdev->dev, "can't find veb %d\n", seid);
 685		return;
 686	}
 687	dev_info(&pf->pdev->dev,
 688		 "veb idx=%d stats_ic=%d  seid=%d uplink=%d mode=%s\n",
 689		 veb->idx, veb->stats_idx, veb->seid, veb->uplink_seid,
 
 690		 veb->bridge_mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
 691	i40e_dbg_dump_eth_stats(pf, &veb->stats);
 692}
 693
 694/**
 695 * i40e_dbg_dump_veb_all - dumps all known veb's stats
 696 * @pf: the i40e_pf created in command write
 697 **/
 698static void i40e_dbg_dump_veb_all(struct i40e_pf *pf)
 699{
 700	struct i40e_veb *veb;
 701	int i;
 702
 703	i40e_pf_for_each_veb(pf, i, veb)
 704		i40e_dbg_dump_veb_seid(pf, veb->seid);
 
 
 
 705}
 706
 707/**
 708 * i40e_dbg_dump_vf - dump VF info
 709 * @pf: the i40e_pf created in command write
 710 * @vf_id: the vf_id from the user
 711 **/
 712static void i40e_dbg_dump_vf(struct i40e_pf *pf, int vf_id)
 713{
 714	struct i40e_vf *vf;
 715	struct i40e_vsi *vsi;
 716
 717	if (!pf->num_alloc_vfs) {
 718		dev_info(&pf->pdev->dev, "no VFs allocated\n");
 719	} else if ((vf_id >= 0) && (vf_id < pf->num_alloc_vfs)) {
 720		vf = &pf->vf[vf_id];
 721		vsi = pf->vsi[vf->lan_vsi_idx];
 722		dev_info(&pf->pdev->dev, "vf %2d: VSI id=%d, seid=%d, qps=%d\n",
 723			 vf_id, vf->lan_vsi_id, vsi->seid, vf->num_queue_pairs);
 724		dev_info(&pf->pdev->dev, "       num MDD=%lld\n",
 725			 vf->num_mdd_events);
 726	} else {
 727		dev_info(&pf->pdev->dev, "invalid VF id %d\n", vf_id);
 728	}
 729}
 730
 731/**
 732 * i40e_dbg_dump_vf_all - dump VF info for all VFs
 733 * @pf: the i40e_pf created in command write
 734 **/
 735static void i40e_dbg_dump_vf_all(struct i40e_pf *pf)
 736{
 737	int i;
 738
 739	if (!pf->num_alloc_vfs)
 740		dev_info(&pf->pdev->dev, "no VFs enabled!\n");
 741	else
 742		for (i = 0; i < pf->num_alloc_vfs; i++)
 743			i40e_dbg_dump_vf(pf, i);
 744}
 745
 746/**
 747 * i40e_dbg_command_write - write into command datum
 748 * @filp: the opened file
 749 * @buffer: where to find the user's data
 750 * @count: the length of the user's data
 751 * @ppos: file position offset
 752 **/
 753static ssize_t i40e_dbg_command_write(struct file *filp,
 754				      const char __user *buffer,
 755				      size_t count, loff_t *ppos)
 756{
 757	struct i40e_pf *pf = filp->private_data;
 758	char *cmd_buf, *cmd_buf_tmp;
 759	int bytes_not_copied;
 760	struct i40e_vsi *vsi;
 761	int vsi_seid;
 762	int veb_seid;
 763	int vf_id;
 764	int cnt;
 765
 766	/* don't allow partial writes */
 767	if (*ppos != 0)
 768		return 0;
 769
 770	cmd_buf = kzalloc(count + 1, GFP_KERNEL);
 771	if (!cmd_buf)
 772		return count;
 773	bytes_not_copied = copy_from_user(cmd_buf, buffer, count);
 774	if (bytes_not_copied) {
 775		kfree(cmd_buf);
 776		return -EFAULT;
 777	}
 778	cmd_buf[count] = '\0';
 779
 780	cmd_buf_tmp = strchr(cmd_buf, '\n');
 781	if (cmd_buf_tmp) {
 782		*cmd_buf_tmp = '\0';
 783		count = cmd_buf_tmp - cmd_buf + 1;
 784	}
 785
 786	if (strncmp(cmd_buf, "add vsi", 7) == 0) {
 787		vsi_seid = -1;
 788		cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
 789		if (cnt == 0) {
 790			/* default to PF VSI */
 791			vsi = i40e_pf_get_main_vsi(pf);
 792			vsi_seid = vsi->seid;
 793		} else if (vsi_seid < 0) {
 794			dev_info(&pf->pdev->dev, "add VSI %d: bad vsi seid\n",
 795				 vsi_seid);
 796			goto command_write_done;
 797		}
 798
 799		/* By default we are in VEPA mode, if this is the first VF/VMDq
 800		 * VSI to be added switch to VEB mode.
 801		 */
 802		if (!test_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags)) {
 803			set_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags);
 804			i40e_do_reset_safe(pf, I40E_PF_RESET_FLAG);
 805		}
 806
 807		vsi = i40e_vsi_setup(pf, I40E_VSI_VMDQ2, vsi_seid, 0);
 808		if (vsi)
 809			dev_info(&pf->pdev->dev, "added VSI %d to relay %d\n",
 810				 vsi->seid, vsi->uplink_seid);
 811		else
 812			dev_info(&pf->pdev->dev, "'%s' failed\n", cmd_buf);
 813
 814	} else if (strncmp(cmd_buf, "del vsi", 7) == 0) {
 815		cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
 816		if (cnt != 1) {
 817			dev_info(&pf->pdev->dev,
 818				 "del vsi: bad command string, cnt=%d\n",
 819				 cnt);
 820			goto command_write_done;
 821		}
 822		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 823		if (!vsi) {
 824			dev_info(&pf->pdev->dev, "del VSI %d: seid not found\n",
 825				 vsi_seid);
 826			goto command_write_done;
 827		}
 828
 829		dev_info(&pf->pdev->dev, "deleting VSI %d\n", vsi_seid);
 830		i40e_vsi_release(vsi);
 831
 832	} else if (strncmp(cmd_buf, "add relay", 9) == 0) {
 833		struct i40e_veb *veb;
 834		u8 enabled_tc = 0x1;
 835		int uplink_seid;
 836
 837		cnt = sscanf(&cmd_buf[9], "%i %i", &uplink_seid, &vsi_seid);
 838		if (cnt == 0) {
 839			uplink_seid = 0;
 840			vsi_seid = 0;
 841		} else if (cnt != 2) {
 842			dev_info(&pf->pdev->dev,
 843				 "add relay: bad command string, cnt=%d\n",
 844				 cnt);
 845			goto command_write_done;
 846		} else if (uplink_seid < 0) {
 847			dev_info(&pf->pdev->dev,
 848				 "add relay %d: bad uplink seid\n",
 849				 uplink_seid);
 850			goto command_write_done;
 851		}
 852
 853		if (uplink_seid != 0 && uplink_seid != pf->mac_seid) {
 
 
 
 
 
 
 
 
 
 
 
 854			dev_info(&pf->pdev->dev,
 855				 "add relay: relay uplink %d not found\n",
 856				 uplink_seid);
 857			goto command_write_done;
 858		} else if (uplink_seid) {
 859			vsi = i40e_pf_get_vsi_by_seid(pf, vsi_seid);
 860			if (!vsi) {
 861				dev_info(&pf->pdev->dev,
 862					 "add relay: VSI %d not found\n",
 863					 vsi_seid);
 864				goto command_write_done;
 865			}
 866			enabled_tc = vsi->tc_config.enabled_tc;
 867		} else if (vsi_seid) {
 868			dev_info(&pf->pdev->dev,
 869				 "add relay: VSI must be 0 for floating relay\n");
 870			goto command_write_done;
 871		}
 872
 873		veb = i40e_veb_setup(pf, uplink_seid, vsi_seid, enabled_tc);
 
 874		if (veb)
 875			dev_info(&pf->pdev->dev, "added relay %d\n", veb->seid);
 876		else
 877			dev_info(&pf->pdev->dev, "add relay failed\n");
 878
 879	} else if (strncmp(cmd_buf, "del relay", 9) == 0) {
 880		struct i40e_veb *veb;
 881		int i;
 882
 883		cnt = sscanf(&cmd_buf[9], "%i", &veb_seid);
 884		if (cnt != 1) {
 885			dev_info(&pf->pdev->dev,
 886				 "del relay: bad command string, cnt=%d\n",
 887				 cnt);
 888			goto command_write_done;
 889		} else if (veb_seid < 0) {
 890			dev_info(&pf->pdev->dev,
 891				 "del relay %d: bad relay seid\n", veb_seid);
 892			goto command_write_done;
 893		}
 894
 895		/* find the veb */
 896		i40e_pf_for_each_veb(pf, i, veb)
 897			if (veb->seid == veb_seid)
 898				break;
 899
 900		if (i >= I40E_MAX_VEB) {
 901			dev_info(&pf->pdev->dev,
 902				 "del relay: relay %d not found\n", veb_seid);
 903			goto command_write_done;
 904		}
 905
 906		dev_info(&pf->pdev->dev, "deleting relay %d\n", veb_seid);
 907		i40e_veb_release(veb);
 908	} else if (strncmp(cmd_buf, "add pvid", 8) == 0) {
 909		unsigned int v;
 910		int ret;
 911		u16 vid;
 912
 913		cnt = sscanf(&cmd_buf[8], "%i %u", &vsi_seid, &v);
 914		if (cnt != 2) {
 915			dev_info(&pf->pdev->dev,
 916				 "add pvid: bad command string, cnt=%d\n", cnt);
 917			goto command_write_done;
 918		}
 919
 920		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 921		if (!vsi) {
 922			dev_info(&pf->pdev->dev, "add pvid: VSI %d not found\n",
 923				 vsi_seid);
 924			goto command_write_done;
 925		}
 926
 927		vid = v;
 928		ret = i40e_vsi_add_pvid(vsi, vid);
 929		if (!ret)
 930			dev_info(&pf->pdev->dev,
 931				 "add pvid: %d added to VSI %d\n",
 932				 vid, vsi_seid);
 933		else
 934			dev_info(&pf->pdev->dev,
 935				 "add pvid: %d to VSI %d failed, ret=%d\n",
 936				 vid, vsi_seid, ret);
 937
 938	} else if (strncmp(cmd_buf, "del pvid", 8) == 0) {
 939
 940		cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
 941		if (cnt != 1) {
 942			dev_info(&pf->pdev->dev,
 943				 "del pvid: bad command string, cnt=%d\n",
 944				 cnt);
 945			goto command_write_done;
 946		}
 947
 948		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 949		if (!vsi) {
 950			dev_info(&pf->pdev->dev,
 951				 "del pvid: VSI %d not found\n", vsi_seid);
 952			goto command_write_done;
 953		}
 954
 955		i40e_vsi_remove_pvid(vsi);
 956		dev_info(&pf->pdev->dev,
 957			 "del pvid: removed from VSI %d\n", vsi_seid);
 958
 959	} else if (strncmp(cmd_buf, "dump", 4) == 0) {
 960		if (strncmp(&cmd_buf[5], "switch", 6) == 0) {
 961			i40e_fetch_switch_configuration(pf, true);
 962		} else if (strncmp(&cmd_buf[5], "vsi", 3) == 0) {
 963			cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
 964			if (cnt > 0)
 965				i40e_dbg_dump_vsi_seid(pf, vsi_seid);
 966			else
 967				i40e_dbg_dump_vsi_no_seid(pf);
 968		} else if (strncmp(&cmd_buf[5], "veb", 3) == 0) {
 969			cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
 970			if (cnt > 0)
 971				i40e_dbg_dump_veb_seid(pf, vsi_seid);
 972			else
 973				i40e_dbg_dump_veb_all(pf);
 974		} else if (strncmp(&cmd_buf[5], "vf", 2) == 0) {
 975			cnt = sscanf(&cmd_buf[7], "%i", &vf_id);
 976			if (cnt > 0)
 977				i40e_dbg_dump_vf(pf, vf_id);
 978			else
 979				i40e_dbg_dump_vf_all(pf);
 980		} else if (strncmp(&cmd_buf[5], "desc", 4) == 0) {
 981			int ring_id, desc_n;
 982			if (strncmp(&cmd_buf[10], "rx", 2) == 0) {
 983				cnt = sscanf(&cmd_buf[12], "%i %i %i",
 984					     &vsi_seid, &ring_id, &desc_n);
 985				i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
 986						   desc_n, pf, RING_TYPE_RX);
 987			} else if (strncmp(&cmd_buf[10], "tx", 2)
 988					== 0) {
 989				cnt = sscanf(&cmd_buf[12], "%i %i %i",
 990					     &vsi_seid, &ring_id, &desc_n);
 991				i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
 992						   desc_n, pf, RING_TYPE_TX);
 993			} else if (strncmp(&cmd_buf[10], "xdp", 3)
 994					== 0) {
 995				cnt = sscanf(&cmd_buf[13], "%i %i %i",
 996					     &vsi_seid, &ring_id, &desc_n);
 997				i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
 998						   desc_n, pf, RING_TYPE_XDP);
 999			} else if (strncmp(&cmd_buf[10], "aq", 2) == 0) {
1000				i40e_dbg_dump_aq_desc(pf);
1001			} else {
1002				dev_info(&pf->pdev->dev,
1003					 "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1004				dev_info(&pf->pdev->dev,
1005					 "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1006				dev_info(&pf->pdev->dev,
1007					 "dump desc xdp <vsi_seid> <ring_id> [<desc_n>]\n");
1008				dev_info(&pf->pdev->dev, "dump desc aq\n");
1009			}
1010		} else if (strncmp(&cmd_buf[5], "reset stats", 11) == 0) {
1011			dev_info(&pf->pdev->dev,
1012				 "core reset count: %d\n", pf->corer_count);
1013			dev_info(&pf->pdev->dev,
1014				 "global reset count: %d\n", pf->globr_count);
1015			dev_info(&pf->pdev->dev,
1016				 "emp reset count: %d\n", pf->empr_count);
1017			dev_info(&pf->pdev->dev,
1018				 "pf reset count: %d\n", pf->pfr_count);
1019		} else if (strncmp(&cmd_buf[5], "port", 4) == 0) {
1020			struct i40e_aqc_query_port_ets_config_resp *bw_data;
1021			struct i40e_dcbx_config *cfg =
1022						&pf->hw.local_dcbx_config;
1023			struct i40e_dcbx_config *r_cfg =
1024						&pf->hw.remote_dcbx_config;
1025			int i, ret;
1026			u16 switch_id;
1027
1028			bw_data = kzalloc(sizeof(
1029				    struct i40e_aqc_query_port_ets_config_resp),
1030					  GFP_KERNEL);
1031			if (!bw_data) {
1032				ret = -ENOMEM;
1033				goto command_write_done;
1034			}
1035
1036			vsi = i40e_pf_get_main_vsi(pf);
1037			switch_id =
1038				le16_to_cpu(vsi->info.switch_id) &
1039					    I40E_AQ_VSI_SW_ID_MASK;
1040
1041			ret = i40e_aq_query_port_ets_config(&pf->hw,
1042							    switch_id,
1043							    bw_data, NULL);
1044			if (ret) {
1045				dev_info(&pf->pdev->dev,
1046					 "Query Port ETS Config AQ command failed =0x%x\n",
1047					 pf->hw.aq.asq_last_status);
1048				kfree(bw_data);
1049				bw_data = NULL;
1050				goto command_write_done;
1051			}
1052			dev_info(&pf->pdev->dev,
1053				 "port bw: tc_valid=0x%x tc_strict_prio=0x%x, tc_bw_max=0x%04x,0x%04x\n",
1054				 bw_data->tc_valid_bits,
1055				 bw_data->tc_strict_priority_bits,
1056				 le16_to_cpu(bw_data->tc_bw_max[0]),
1057				 le16_to_cpu(bw_data->tc_bw_max[1]));
1058			for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1059				dev_info(&pf->pdev->dev, "port bw: tc_bw_share=%d tc_bw_limit=%d\n",
1060					 bw_data->tc_bw_share_credits[i],
1061					 le16_to_cpu(bw_data->tc_bw_limits[i]));
1062			}
1063
1064			kfree(bw_data);
1065			bw_data = NULL;
1066
1067			dev_info(&pf->pdev->dev,
1068				 "port dcbx_mode=%d\n", cfg->dcbx_mode);
1069			dev_info(&pf->pdev->dev,
1070				 "port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1071				 cfg->etscfg.willing, cfg->etscfg.cbs,
1072				 cfg->etscfg.maxtcs);
1073			for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1074				dev_info(&pf->pdev->dev, "port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1075					 i, cfg->etscfg.prioritytable[i],
1076					 cfg->etscfg.tcbwtable[i],
1077					 cfg->etscfg.tsatable[i]);
1078			}
1079			for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1080				dev_info(&pf->pdev->dev, "port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1081					 i, cfg->etsrec.prioritytable[i],
1082					 cfg->etsrec.tcbwtable[i],
1083					 cfg->etsrec.tsatable[i]);
1084			}
1085			dev_info(&pf->pdev->dev,
1086				 "port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1087				 cfg->pfc.willing, cfg->pfc.mbc,
1088				 cfg->pfc.pfccap, cfg->pfc.pfcenable);
1089			dev_info(&pf->pdev->dev,
1090				 "port app_table: num_apps=%d\n", cfg->numapps);
1091			for (i = 0; i < cfg->numapps; i++) {
1092				dev_info(&pf->pdev->dev, "port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1093					 i, cfg->app[i].priority,
1094					 cfg->app[i].selector,
1095					 cfg->app[i].protocolid);
1096			}
1097			/* Peer TLV DCBX data */
1098			dev_info(&pf->pdev->dev,
1099				 "remote port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1100				 r_cfg->etscfg.willing,
1101				 r_cfg->etscfg.cbs, r_cfg->etscfg.maxtcs);
1102			for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1103				dev_info(&pf->pdev->dev, "remote port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1104					 i, r_cfg->etscfg.prioritytable[i],
1105					 r_cfg->etscfg.tcbwtable[i],
1106					 r_cfg->etscfg.tsatable[i]);
1107			}
1108			for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1109				dev_info(&pf->pdev->dev, "remote port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1110					 i, r_cfg->etsrec.prioritytable[i],
1111					 r_cfg->etsrec.tcbwtable[i],
1112					 r_cfg->etsrec.tsatable[i]);
1113			}
1114			dev_info(&pf->pdev->dev,
1115				 "remote port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1116				 r_cfg->pfc.willing,
1117				 r_cfg->pfc.mbc,
1118				 r_cfg->pfc.pfccap,
1119				 r_cfg->pfc.pfcenable);
1120			dev_info(&pf->pdev->dev,
1121				 "remote port app_table: num_apps=%d\n",
1122				 r_cfg->numapps);
1123			for (i = 0; i < r_cfg->numapps; i++) {
1124				dev_info(&pf->pdev->dev, "remote port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1125					 i, r_cfg->app[i].priority,
1126					 r_cfg->app[i].selector,
1127					 r_cfg->app[i].protocolid);
1128			}
1129		} else if (strncmp(&cmd_buf[5], "debug fwdata", 12) == 0) {
1130			int cluster_id, table_id;
1131			int index, ret;
1132			u16 buff_len = 4096;
1133			u32 next_index;
1134			u8 next_table;
1135			u8 *buff;
1136			u16 rlen;
1137
1138			cnt = sscanf(&cmd_buf[18], "%i %i %i",
1139				     &cluster_id, &table_id, &index);
1140			if (cnt != 3) {
1141				dev_info(&pf->pdev->dev,
1142					 "dump debug fwdata <cluster_id> <table_id> <index>\n");
1143				goto command_write_done;
1144			}
1145
1146			dev_info(&pf->pdev->dev,
1147				 "AQ debug dump fwdata params %x %x %x %x\n",
1148				 cluster_id, table_id, index, buff_len);
1149			buff = kzalloc(buff_len, GFP_KERNEL);
1150			if (!buff)
1151				goto command_write_done;
1152
1153			ret = i40e_aq_debug_dump(&pf->hw, cluster_id, table_id,
1154						 index, buff_len, buff, &rlen,
1155						 &next_table, &next_index,
1156						 NULL);
1157			if (ret) {
1158				dev_info(&pf->pdev->dev,
1159					 "debug dump fwdata AQ Failed %d 0x%x\n",
1160					 ret, pf->hw.aq.asq_last_status);
1161				kfree(buff);
1162				buff = NULL;
1163				goto command_write_done;
1164			}
1165			dev_info(&pf->pdev->dev,
1166				 "AQ debug dump fwdata rlen=0x%x next_table=0x%x next_index=0x%x\n",
1167				 rlen, next_table, next_index);
1168			print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1169				       DUMP_PREFIX_OFFSET, 16, 1,
1170				       buff, rlen, true);
1171			kfree(buff);
1172			buff = NULL;
1173		} else {
1174			dev_info(&pf->pdev->dev,
1175				 "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");
1176			dev_info(&pf->pdev->dev, "dump switch\n");
1177			dev_info(&pf->pdev->dev, "dump vsi [seid]\n");
1178			dev_info(&pf->pdev->dev, "dump reset stats\n");
1179			dev_info(&pf->pdev->dev, "dump port\n");
1180			dev_info(&pf->pdev->dev, "dump vf [vf_id]\n");
1181			dev_info(&pf->pdev->dev,
1182				 "dump debug fwdata <cluster_id> <table_id> <index>\n");
1183		}
1184	} else if (strncmp(cmd_buf, "pfr", 3) == 0) {
1185		dev_info(&pf->pdev->dev, "debugfs: forcing PFR\n");
1186		i40e_do_reset_safe(pf, BIT(__I40E_PF_RESET_REQUESTED));
1187
1188	} else if (strncmp(cmd_buf, "corer", 5) == 0) {
1189		dev_info(&pf->pdev->dev, "debugfs: forcing CoreR\n");
1190		i40e_do_reset_safe(pf, BIT(__I40E_CORE_RESET_REQUESTED));
1191
1192	} else if (strncmp(cmd_buf, "globr", 5) == 0) {
1193		dev_info(&pf->pdev->dev, "debugfs: forcing GlobR\n");
1194		i40e_do_reset_safe(pf, BIT(__I40E_GLOBAL_RESET_REQUESTED));
1195
1196	} else if (strncmp(cmd_buf, "read", 4) == 0) {
1197		u32 address;
1198		u32 value;
1199
1200		cnt = sscanf(&cmd_buf[4], "%i", &address);
1201		if (cnt != 1) {
1202			dev_info(&pf->pdev->dev, "read <reg>\n");
1203			goto command_write_done;
1204		}
1205
1206		/* check the range on address */
1207		if (address > (pf->ioremap_len - sizeof(u32))) {
1208			dev_info(&pf->pdev->dev, "read reg address 0x%08x too large, max=0x%08lx\n",
1209				 address, (unsigned long int)(pf->ioremap_len - sizeof(u32)));
1210			goto command_write_done;
1211		}
1212
1213		value = rd32(&pf->hw, address);
1214		dev_info(&pf->pdev->dev, "read: 0x%08x = 0x%08x\n",
1215			 address, value);
1216
1217	} else if (strncmp(cmd_buf, "write", 5) == 0) {
1218		u32 address, value;
1219
1220		cnt = sscanf(&cmd_buf[5], "%i %i", &address, &value);
1221		if (cnt != 2) {
1222			dev_info(&pf->pdev->dev, "write <reg> <value>\n");
1223			goto command_write_done;
1224		}
1225
1226		/* check the range on address */
1227		if (address > (pf->ioremap_len - sizeof(u32))) {
1228			dev_info(&pf->pdev->dev, "write reg address 0x%08x too large, max=0x%08lx\n",
1229				 address, (unsigned long int)(pf->ioremap_len - sizeof(u32)));
1230			goto command_write_done;
1231		}
1232		wr32(&pf->hw, address, value);
1233		value = rd32(&pf->hw, address);
1234		dev_info(&pf->pdev->dev, "write: 0x%08x = 0x%08x\n",
1235			 address, value);
1236	} else if (strncmp(cmd_buf, "clear_stats", 11) == 0) {
1237		if (strncmp(&cmd_buf[12], "vsi", 3) == 0) {
1238			cnt = sscanf(&cmd_buf[15], "%i", &vsi_seid);
1239			if (cnt == 0) {
1240				int i;
1241
1242				i40e_pf_for_each_vsi(pf, i, vsi)
1243					i40e_vsi_reset_stats(vsi);
1244				dev_info(&pf->pdev->dev, "vsi clear stats called for all vsi's\n");
1245			} else if (cnt == 1) {
1246				vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1247				if (!vsi) {
1248					dev_info(&pf->pdev->dev,
1249						 "clear_stats vsi: bad vsi %d\n",
1250						 vsi_seid);
1251					goto command_write_done;
1252				}
1253				i40e_vsi_reset_stats(vsi);
1254				dev_info(&pf->pdev->dev,
1255					 "vsi clear stats called for vsi %d\n",
1256					 vsi_seid);
1257			} else {
1258				dev_info(&pf->pdev->dev, "clear_stats vsi [seid]\n");
1259			}
1260		} else if (strncmp(&cmd_buf[12], "port", 4) == 0) {
1261			if (pf->hw.partition_id == 1) {
1262				i40e_pf_reset_stats(pf);
1263				dev_info(&pf->pdev->dev, "port stats cleared\n");
1264			} else {
1265				dev_info(&pf->pdev->dev, "clear port stats not allowed on this port partition\n");
1266			}
1267		} else {
1268			dev_info(&pf->pdev->dev, "clear_stats vsi [seid] or clear_stats port\n");
1269		}
1270	} else if (strncmp(cmd_buf, "send aq_cmd", 11) == 0) {
1271		struct i40e_aq_desc *desc;
1272		int ret;
1273
1274		desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1275		if (!desc)
1276			goto command_write_done;
1277		cnt = sscanf(&cmd_buf[11],
1278			     "%hi %hi %hi %hi %i %i %i %i %i %i",
1279			     &desc->flags,
1280			     &desc->opcode, &desc->datalen, &desc->retval,
1281			     &desc->cookie_high, &desc->cookie_low,
1282			     &desc->params.internal.param0,
1283			     &desc->params.internal.param1,
1284			     &desc->params.internal.param2,
1285			     &desc->params.internal.param3);
1286		if (cnt != 10) {
1287			dev_info(&pf->pdev->dev,
1288				 "send aq_cmd: bad command string, cnt=%d\n",
1289				 cnt);
1290			kfree(desc);
1291			desc = NULL;
1292			goto command_write_done;
1293		}
1294		ret = i40e_asq_send_command(&pf->hw, desc, NULL, 0, NULL);
1295		if (!ret) {
1296			dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1297		} else if (ret == -EIO) {
1298			dev_info(&pf->pdev->dev,
1299				 "AQ command send failed Opcode %x AQ Error: %d\n",
1300				 desc->opcode, pf->hw.aq.asq_last_status);
1301		} else {
1302			dev_info(&pf->pdev->dev,
1303				 "AQ command send failed Opcode %x Status: %d\n",
1304				 desc->opcode, ret);
1305		}
1306		dev_info(&pf->pdev->dev,
1307			 "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1308			 desc->flags, desc->opcode, desc->datalen, desc->retval,
1309			 desc->cookie_high, desc->cookie_low,
1310			 desc->params.internal.param0,
1311			 desc->params.internal.param1,
1312			 desc->params.internal.param2,
1313			 desc->params.internal.param3);
1314		kfree(desc);
1315		desc = NULL;
1316	} else if (strncmp(cmd_buf, "send indirect aq_cmd", 20) == 0) {
1317		struct i40e_aq_desc *desc;
1318		u16 buffer_len;
1319		u8 *buff;
1320		int ret;
1321
1322		desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1323		if (!desc)
1324			goto command_write_done;
1325		cnt = sscanf(&cmd_buf[20],
1326			     "%hi %hi %hi %hi %i %i %i %i %i %i %hi",
1327			     &desc->flags,
1328			     &desc->opcode, &desc->datalen, &desc->retval,
1329			     &desc->cookie_high, &desc->cookie_low,
1330			     &desc->params.internal.param0,
1331			     &desc->params.internal.param1,
1332			     &desc->params.internal.param2,
1333			     &desc->params.internal.param3,
1334			     &buffer_len);
1335		if (cnt != 11) {
1336			dev_info(&pf->pdev->dev,
1337				 "send indirect aq_cmd: bad command string, cnt=%d\n",
1338				 cnt);
1339			kfree(desc);
1340			desc = NULL;
1341			goto command_write_done;
1342		}
1343		/* Just stub a buffer big enough in case user messed up */
1344		if (buffer_len == 0)
1345			buffer_len = 1280;
1346
1347		buff = kzalloc(buffer_len, GFP_KERNEL);
1348		if (!buff) {
1349			kfree(desc);
1350			desc = NULL;
1351			goto command_write_done;
1352		}
1353		desc->flags |= cpu_to_le16((u16)I40E_AQ_FLAG_BUF);
1354		ret = i40e_asq_send_command(&pf->hw, desc, buff,
1355					    buffer_len, NULL);
1356		if (!ret) {
1357			dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1358		} else if (ret == -EIO) {
1359			dev_info(&pf->pdev->dev,
1360				 "AQ command send failed Opcode %x AQ Error: %d\n",
1361				 desc->opcode, pf->hw.aq.asq_last_status);
1362		} else {
1363			dev_info(&pf->pdev->dev,
1364				 "AQ command send failed Opcode %x Status: %d\n",
1365				 desc->opcode, ret);
1366		}
1367		dev_info(&pf->pdev->dev,
1368			 "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1369			 desc->flags, desc->opcode, desc->datalen, desc->retval,
1370			 desc->cookie_high, desc->cookie_low,
1371			 desc->params.internal.param0,
1372			 desc->params.internal.param1,
1373			 desc->params.internal.param2,
1374			 desc->params.internal.param3);
1375		print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1376			       DUMP_PREFIX_OFFSET, 16, 1,
1377			       buff, buffer_len, true);
1378		kfree(buff);
1379		buff = NULL;
1380		kfree(desc);
1381		desc = NULL;
1382	} else if (strncmp(cmd_buf, "fd current cnt", 14) == 0) {
1383		dev_info(&pf->pdev->dev, "FD current total filter count for this interface: %d\n",
1384			 i40e_get_current_fd_count(pf));
1385	} else if (strncmp(cmd_buf, "lldp", 4) == 0) {
1386		/* Get main VSI */
1387		struct i40e_vsi *main_vsi = i40e_pf_get_main_vsi(pf);
1388
1389		if (strncmp(&cmd_buf[5], "stop", 4) == 0) {
1390			int ret;
1391
1392			ret = i40e_aq_stop_lldp(&pf->hw, false, false, NULL);
1393			if (ret) {
1394				dev_info(&pf->pdev->dev,
1395					 "Stop LLDP AQ command failed =0x%x\n",
1396					 pf->hw.aq.asq_last_status);
1397				goto command_write_done;
1398			}
1399			ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1400						pf->hw.mac.addr, ETH_P_LLDP, 0,
1401						main_vsi->seid, 0, true, NULL,
1402						NULL);
 
1403			if (ret) {
1404				dev_info(&pf->pdev->dev,
1405					"%s: Add Control Packet Filter AQ command failed =0x%x\n",
1406					__func__, pf->hw.aq.asq_last_status);
1407				goto command_write_done;
1408			}
1409#ifdef CONFIG_I40E_DCB
1410			pf->dcbx_cap = DCB_CAP_DCBX_HOST |
1411				       DCB_CAP_DCBX_VER_IEEE;
1412#endif /* CONFIG_I40E_DCB */
1413		} else if (strncmp(&cmd_buf[5], "start", 5) == 0) {
1414			int ret;
1415
1416			ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1417						pf->hw.mac.addr, ETH_P_LLDP, 0,
1418						main_vsi->seid, 0, false, NULL,
1419						NULL);
 
1420			if (ret) {
1421				dev_info(&pf->pdev->dev,
1422					"%s: Remove Control Packet Filter AQ command failed =0x%x\n",
1423					__func__, pf->hw.aq.asq_last_status);
1424				/* Continue and start FW LLDP anyways */
1425			}
1426
1427			ret = i40e_aq_start_lldp(&pf->hw, false, NULL);
1428			if (ret) {
1429				dev_info(&pf->pdev->dev,
1430					 "Start LLDP AQ command failed =0x%x\n",
1431					 pf->hw.aq.asq_last_status);
1432				goto command_write_done;
1433			}
1434#ifdef CONFIG_I40E_DCB
1435			pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED |
1436				       DCB_CAP_DCBX_VER_IEEE;
1437#endif /* CONFIG_I40E_DCB */
1438		} else if (strncmp(&cmd_buf[5],
1439			   "get local", 9) == 0) {
1440			u16 llen, rlen;
1441			int ret;
1442			u8 *buff;
1443
1444			buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1445			if (!buff)
1446				goto command_write_done;
1447
1448			ret = i40e_aq_get_lldp_mib(&pf->hw, 0,
1449						   I40E_AQ_LLDP_MIB_LOCAL,
1450						   buff, I40E_LLDPDU_SIZE,
1451						   &llen, &rlen, NULL);
1452			if (ret) {
1453				dev_info(&pf->pdev->dev,
1454					 "Get LLDP MIB (local) AQ command failed =0x%x\n",
1455					 pf->hw.aq.asq_last_status);
1456				kfree(buff);
1457				buff = NULL;
1458				goto command_write_done;
1459			}
1460			dev_info(&pf->pdev->dev, "LLDP MIB (local)\n");
1461			print_hex_dump(KERN_INFO, "LLDP MIB (local): ",
1462				       DUMP_PREFIX_OFFSET, 16, 1,
1463				       buff, I40E_LLDPDU_SIZE, true);
1464			kfree(buff);
1465			buff = NULL;
1466		} else if (strncmp(&cmd_buf[5], "get remote", 10) == 0) {
1467			u16 llen, rlen;
1468			int ret;
1469			u8 *buff;
1470
1471			buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1472			if (!buff)
1473				goto command_write_done;
1474
1475			ret = i40e_aq_get_lldp_mib(&pf->hw,
1476					I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE,
1477					I40E_AQ_LLDP_MIB_REMOTE,
1478					buff, I40E_LLDPDU_SIZE,
1479					&llen, &rlen, NULL);
1480			if (ret) {
1481				dev_info(&pf->pdev->dev,
1482					 "Get LLDP MIB (remote) AQ command failed =0x%x\n",
1483					 pf->hw.aq.asq_last_status);
1484				kfree(buff);
1485				buff = NULL;
1486				goto command_write_done;
1487			}
1488			dev_info(&pf->pdev->dev, "LLDP MIB (remote)\n");
1489			print_hex_dump(KERN_INFO, "LLDP MIB (remote): ",
1490				       DUMP_PREFIX_OFFSET, 16, 1,
1491				       buff, I40E_LLDPDU_SIZE, true);
1492			kfree(buff);
1493			buff = NULL;
1494		} else if (strncmp(&cmd_buf[5], "event on", 8) == 0) {
1495			int ret;
1496
1497			ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1498								true, NULL);
1499			if (ret) {
1500				dev_info(&pf->pdev->dev,
1501					 "Config LLDP MIB Change Event (on) AQ command failed =0x%x\n",
1502					 pf->hw.aq.asq_last_status);
1503				goto command_write_done;
1504			}
1505		} else if (strncmp(&cmd_buf[5], "event off", 9) == 0) {
1506			int ret;
1507
1508			ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1509								false, NULL);
1510			if (ret) {
1511				dev_info(&pf->pdev->dev,
1512					 "Config LLDP MIB Change Event (off) AQ command failed =0x%x\n",
1513					 pf->hw.aq.asq_last_status);
1514				goto command_write_done;
1515			}
1516		}
1517	} else if (strncmp(cmd_buf, "nvm read", 8) == 0) {
1518		u16 buffer_len, bytes;
1519		u16 module;
1520		u32 offset;
1521		u16 *buff;
1522		int ret;
1523
1524		cnt = sscanf(&cmd_buf[8], "%hx %x %hx",
1525			     &module, &offset, &buffer_len);
1526		if (cnt == 0) {
1527			module = 0;
1528			offset = 0;
1529			buffer_len = 0;
1530		} else if (cnt == 1) {
1531			offset = 0;
1532			buffer_len = 0;
1533		} else if (cnt == 2) {
1534			buffer_len = 0;
1535		} else if (cnt > 3) {
1536			dev_info(&pf->pdev->dev,
1537				 "nvm read: bad command string, cnt=%d\n", cnt);
1538			goto command_write_done;
1539		}
1540
1541		/* set the max length */
1542		buffer_len = min_t(u16, buffer_len, I40E_MAX_AQ_BUF_SIZE/2);
1543
1544		bytes = 2 * buffer_len;
1545
1546		/* read at least 1k bytes, no more than 4kB */
1547		bytes = clamp(bytes, (u16)1024, (u16)I40E_MAX_AQ_BUF_SIZE);
1548		buff = kzalloc(bytes, GFP_KERNEL);
1549		if (!buff)
1550			goto command_write_done;
1551
1552		ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ);
1553		if (ret) {
1554			dev_info(&pf->pdev->dev,
1555				 "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1556				 ret, pf->hw.aq.asq_last_status);
1557			kfree(buff);
1558			goto command_write_done;
1559		}
1560
1561		ret = i40e_aq_read_nvm(&pf->hw, module, (2 * offset),
1562				       bytes, (u8 *)buff, true, NULL);
1563		i40e_release_nvm(&pf->hw);
1564		if (ret) {
1565			dev_info(&pf->pdev->dev,
1566				 "Read NVM AQ failed err=%d status=0x%x\n",
1567				 ret, pf->hw.aq.asq_last_status);
1568		} else {
1569			dev_info(&pf->pdev->dev,
1570				 "Read NVM module=0x%x offset=0x%x words=%d\n",
1571				 module, offset, buffer_len);
1572			if (bytes)
1573				print_hex_dump(KERN_INFO, "NVM Dump: ",
1574					DUMP_PREFIX_OFFSET, 16, 2,
1575					buff, bytes, true);
1576		}
1577		kfree(buff);
1578		buff = NULL;
1579	} else {
1580		dev_info(&pf->pdev->dev, "unknown command '%s'\n", cmd_buf);
1581		dev_info(&pf->pdev->dev, "available commands\n");
1582		dev_info(&pf->pdev->dev, "  add vsi [relay_seid]\n");
1583		dev_info(&pf->pdev->dev, "  del vsi [vsi_seid]\n");
1584		dev_info(&pf->pdev->dev, "  add relay <uplink_seid> <vsi_seid>\n");
1585		dev_info(&pf->pdev->dev, "  del relay <relay_seid>\n");
1586		dev_info(&pf->pdev->dev, "  add pvid <vsi_seid> <vid>\n");
1587		dev_info(&pf->pdev->dev, "  del pvid <vsi_seid>\n");
1588		dev_info(&pf->pdev->dev, "  dump switch\n");
1589		dev_info(&pf->pdev->dev, "  dump vsi [seid]\n");
1590		dev_info(&pf->pdev->dev, "  dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1591		dev_info(&pf->pdev->dev, "  dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1592		dev_info(&pf->pdev->dev, "  dump desc xdp <vsi_seid> <ring_id> [<desc_n>]\n");
1593		dev_info(&pf->pdev->dev, "  dump desc aq\n");
1594		dev_info(&pf->pdev->dev, "  dump reset stats\n");
1595		dev_info(&pf->pdev->dev, "  dump debug fwdata <cluster_id> <table_id> <index>\n");
1596		dev_info(&pf->pdev->dev, "  read <reg>\n");
1597		dev_info(&pf->pdev->dev, "  write <reg> <value>\n");
1598		dev_info(&pf->pdev->dev, "  clear_stats vsi [seid]\n");
1599		dev_info(&pf->pdev->dev, "  clear_stats port\n");
1600		dev_info(&pf->pdev->dev, "  pfr\n");
1601		dev_info(&pf->pdev->dev, "  corer\n");
1602		dev_info(&pf->pdev->dev, "  globr\n");
1603		dev_info(&pf->pdev->dev, "  send aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3>\n");
1604		dev_info(&pf->pdev->dev, "  send indirect aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3> <buffer_len>\n");
1605		dev_info(&pf->pdev->dev, "  fd current cnt");
1606		dev_info(&pf->pdev->dev, "  lldp start\n");
1607		dev_info(&pf->pdev->dev, "  lldp stop\n");
1608		dev_info(&pf->pdev->dev, "  lldp get local\n");
1609		dev_info(&pf->pdev->dev, "  lldp get remote\n");
1610		dev_info(&pf->pdev->dev, "  lldp event on\n");
1611		dev_info(&pf->pdev->dev, "  lldp event off\n");
1612		dev_info(&pf->pdev->dev, "  nvm read [module] [word_offset] [word_count]\n");
1613	}
1614
1615command_write_done:
1616	kfree(cmd_buf);
1617	cmd_buf = NULL;
1618	return count;
1619}
1620
1621static const struct file_operations i40e_dbg_command_fops = {
1622	.owner = THIS_MODULE,
1623	.open =  simple_open,
1624	.read =  i40e_dbg_command_read,
1625	.write = i40e_dbg_command_write,
1626};
1627
1628/**************************************************************
1629 * netdev_ops
1630 * The netdev_ops entry in debugfs is for giving the driver commands
1631 * to be executed from the netdev operations.
1632 **************************************************************/
1633static char i40e_dbg_netdev_ops_buf[256] = "";
1634
1635/**
1636 * i40e_dbg_netdev_ops_read - read for netdev_ops datum
1637 * @filp: the opened file
1638 * @buffer: where to write the data for the user to read
1639 * @count: the size of the user's buffer
1640 * @ppos: file position offset
1641 **/
1642static ssize_t i40e_dbg_netdev_ops_read(struct file *filp, char __user *buffer,
1643					size_t count, loff_t *ppos)
1644{
1645	struct i40e_pf *pf = filp->private_data;
1646	struct i40e_vsi *main_vsi;
1647	int bytes_not_copied;
1648	int buf_size = 256;
1649	char *buf;
1650	int len;
1651
1652	/* don't allow partal reads */
1653	if (*ppos != 0)
1654		return 0;
1655	if (count < buf_size)
1656		return -ENOSPC;
1657
1658	buf = kzalloc(buf_size, GFP_KERNEL);
1659	if (!buf)
1660		return -ENOSPC;
1661
1662	main_vsi = i40e_pf_get_main_vsi(pf);
1663	len = snprintf(buf, buf_size, "%s: %s\n", main_vsi->netdev->name,
1664		       i40e_dbg_netdev_ops_buf);
1665
1666	bytes_not_copied = copy_to_user(buffer, buf, len);
1667	kfree(buf);
1668
1669	if (bytes_not_copied)
1670		return -EFAULT;
1671
1672	*ppos = len;
1673	return len;
1674}
1675
1676/**
1677 * i40e_dbg_netdev_ops_write - write into netdev_ops datum
1678 * @filp: the opened file
1679 * @buffer: where to find the user's data
1680 * @count: the length of the user's data
1681 * @ppos: file position offset
1682 **/
1683static ssize_t i40e_dbg_netdev_ops_write(struct file *filp,
1684					 const char __user *buffer,
1685					 size_t count, loff_t *ppos)
1686{
1687	struct i40e_pf *pf = filp->private_data;
1688	int bytes_not_copied;
1689	struct i40e_vsi *vsi;
1690	char *buf_tmp;
1691	int vsi_seid;
1692	int i, cnt;
1693
1694	/* don't allow partial writes */
1695	if (*ppos != 0)
1696		return 0;
1697	if (count >= sizeof(i40e_dbg_netdev_ops_buf))
1698		return -ENOSPC;
1699
1700	memset(i40e_dbg_netdev_ops_buf, 0, sizeof(i40e_dbg_netdev_ops_buf));
1701	bytes_not_copied = copy_from_user(i40e_dbg_netdev_ops_buf,
1702					  buffer, count);
1703	if (bytes_not_copied)
1704		return -EFAULT;
1705	i40e_dbg_netdev_ops_buf[count] = '\0';
1706
1707	buf_tmp = strchr(i40e_dbg_netdev_ops_buf, '\n');
1708	if (buf_tmp) {
1709		*buf_tmp = '\0';
1710		count = buf_tmp - i40e_dbg_netdev_ops_buf + 1;
1711	}
1712
1713	if (strncmp(i40e_dbg_netdev_ops_buf, "change_mtu", 10) == 0) {
1714		int mtu;
1715
1716		cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i %i",
1717			     &vsi_seid, &mtu);
1718		if (cnt != 2) {
1719			dev_info(&pf->pdev->dev, "change_mtu <vsi_seid> <mtu>\n");
1720			goto netdev_ops_write_done;
1721		}
1722		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1723		if (!vsi) {
1724			dev_info(&pf->pdev->dev,
1725				 "change_mtu: VSI %d not found\n", vsi_seid);
1726		} else if (!vsi->netdev) {
1727			dev_info(&pf->pdev->dev, "change_mtu: no netdev for VSI %d\n",
1728				 vsi_seid);
1729		} else if (rtnl_trylock()) {
1730			vsi->netdev->netdev_ops->ndo_change_mtu(vsi->netdev,
1731								mtu);
1732			rtnl_unlock();
1733			dev_info(&pf->pdev->dev, "change_mtu called\n");
1734		} else {
1735			dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1736		}
1737
1738	} else if (strncmp(i40e_dbg_netdev_ops_buf, "set_rx_mode", 11) == 0) {
1739		cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
1740		if (cnt != 1) {
1741			dev_info(&pf->pdev->dev, "set_rx_mode <vsi_seid>\n");
1742			goto netdev_ops_write_done;
1743		}
1744		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1745		if (!vsi) {
1746			dev_info(&pf->pdev->dev,
1747				 "set_rx_mode: VSI %d not found\n", vsi_seid);
1748		} else if (!vsi->netdev) {
1749			dev_info(&pf->pdev->dev, "set_rx_mode: no netdev for VSI %d\n",
1750				 vsi_seid);
1751		} else if (rtnl_trylock()) {
1752			vsi->netdev->netdev_ops->ndo_set_rx_mode(vsi->netdev);
1753			rtnl_unlock();
1754			dev_info(&pf->pdev->dev, "set_rx_mode called\n");
1755		} else {
1756			dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1757		}
1758
1759	} else if (strncmp(i40e_dbg_netdev_ops_buf, "napi", 4) == 0) {
1760		cnt = sscanf(&i40e_dbg_netdev_ops_buf[4], "%i", &vsi_seid);
1761		if (cnt != 1) {
1762			dev_info(&pf->pdev->dev, "napi <vsi_seid>\n");
1763			goto netdev_ops_write_done;
1764		}
1765		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1766		if (!vsi) {
1767			dev_info(&pf->pdev->dev, "napi: VSI %d not found\n",
1768				 vsi_seid);
1769		} else if (!vsi->netdev) {
1770			dev_info(&pf->pdev->dev, "napi: no netdev for VSI %d\n",
1771				 vsi_seid);
1772		} else {
1773			for (i = 0; i < vsi->num_q_vectors; i++)
1774				napi_schedule(&vsi->q_vectors[i]->napi);
1775			dev_info(&pf->pdev->dev, "napi called\n");
1776		}
1777	} else {
1778		dev_info(&pf->pdev->dev, "unknown command '%s'\n",
1779			 i40e_dbg_netdev_ops_buf);
1780		dev_info(&pf->pdev->dev, "available commands\n");
1781		dev_info(&pf->pdev->dev, "  change_mtu <vsi_seid> <mtu>\n");
1782		dev_info(&pf->pdev->dev, "  set_rx_mode <vsi_seid>\n");
1783		dev_info(&pf->pdev->dev, "  napi <vsi_seid>\n");
1784	}
1785netdev_ops_write_done:
1786	return count;
1787}
1788
1789static const struct file_operations i40e_dbg_netdev_ops_fops = {
1790	.owner = THIS_MODULE,
1791	.open = simple_open,
1792	.read = i40e_dbg_netdev_ops_read,
1793	.write = i40e_dbg_netdev_ops_write,
1794};
1795
1796/**
1797 * i40e_dbg_pf_init - setup the debugfs directory for the PF
1798 * @pf: the PF that is starting up
1799 **/
1800void i40e_dbg_pf_init(struct i40e_pf *pf)
1801{
1802	const char *name = pci_name(pf->pdev);
1803
1804	pf->i40e_dbg_pf = debugfs_create_dir(name, i40e_dbg_root);
1805
1806	debugfs_create_file("command", 0600, pf->i40e_dbg_pf, pf,
1807			    &i40e_dbg_command_fops);
1808
1809	debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf, pf,
1810			    &i40e_dbg_netdev_ops_fops);
1811}
1812
1813/**
1814 * i40e_dbg_pf_exit - clear out the PF's debugfs entries
1815 * @pf: the PF that is stopping
1816 **/
1817void i40e_dbg_pf_exit(struct i40e_pf *pf)
1818{
1819	debugfs_remove_recursive(pf->i40e_dbg_pf);
1820	pf->i40e_dbg_pf = NULL;
1821}
1822
1823/**
1824 * i40e_dbg_init - start up debugfs for the driver
1825 **/
1826void i40e_dbg_init(void)
1827{
1828	i40e_dbg_root = debugfs_create_dir(i40e_driver_name, NULL);
1829	if (IS_ERR(i40e_dbg_root))
1830		pr_info("init of debugfs failed\n");
1831}
1832
1833/**
1834 * i40e_dbg_exit - clean out the driver's debugfs entries
1835 **/
1836void i40e_dbg_exit(void)
1837{
1838	debugfs_remove_recursive(i40e_dbg_root);
1839	i40e_dbg_root = NULL;
1840}
1841
1842#endif /* CONFIG_DEBUG_FS */