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	int i;
  28
  29	if (seid < 0)
  30		dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
  31	else
  32		for (i = 0; i < pf->num_alloc_vsi; i++)
  33			if (pf->vsi[i] && (pf->vsi[i]->seid == seid))
  34				return pf->vsi[i];
  35
  36	return NULL;
  37}
  38
  39/**
  40 * i40e_dbg_find_veb - searches for the veb with the given seid
  41 * @pf: the PF structure to search for the veb
  42 * @seid: seid of the veb it is searching for
  43 **/
  44static struct i40e_veb *i40e_dbg_find_veb(struct i40e_pf *pf, int seid)
  45{
  46	int i;
  47
  48	for (i = 0; i < I40E_MAX_VEB; i++)
  49		if (pf->veb[i] && pf->veb[i]->seid == seid)
  50			return pf->veb[i];
  51	return NULL;
  52}
  53
  54/**************************************************************
  55 * command
  56 * The command entry in debugfs is for giving the driver commands
  57 * to be executed - these may be for changing the internal switch
  58 * setup, adding or removing filters, or other things.  Many of
  59 * these will be useful for some forms of unit testing.
  60 **************************************************************/
  61static char i40e_dbg_command_buf[256] = "";
  62
  63/**
  64 * i40e_dbg_command_read - read for command datum
  65 * @filp: the opened file
  66 * @buffer: where to write the data for the user to read
  67 * @count: the size of the user's buffer
  68 * @ppos: file position offset
  69 **/
  70static ssize_t i40e_dbg_command_read(struct file *filp, char __user *buffer,
  71				     size_t count, loff_t *ppos)
  72{
  73	struct i40e_pf *pf = filp->private_data;
  74	int bytes_not_copied;
  75	int buf_size = 256;
  76	char *buf;
  77	int len;
  78
  79	/* don't allow partial reads */
  80	if (*ppos != 0)
  81		return 0;
  82	if (count < buf_size)
  83		return -ENOSPC;
  84
  85	buf = kzalloc(buf_size, GFP_KERNEL);
  86	if (!buf)
  87		return -ENOSPC;
  88
  89	len = snprintf(buf, buf_size, "%s: %s\n",
  90		       pf->vsi[pf->lan_vsi]->netdev->name,
  91		       i40e_dbg_command_buf);
  92
  93	bytes_not_copied = copy_to_user(buffer, buf, len);
  94	kfree(buf);
  95
  96	if (bytes_not_copied)
  97		return -EFAULT;
  98
  99	*ppos = len;
 100	return len;
 101}
 102
 103static char *i40e_filter_state_string[] = {
 104	"INVALID",
 105	"NEW",
 106	"ACTIVE",
 107	"FAILED",
 108	"REMOVE",
 109};
 110
 111/**
 112 * i40e_dbg_dump_vsi_seid - handles dump vsi seid write into command datum
 113 * @pf: the i40e_pf created in command write
 114 * @seid: the seid the user put in
 115 **/
 116static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid)
 117{
 118	struct rtnl_link_stats64 *nstat;
 119	struct i40e_mac_filter *f;
 120	struct i40e_vsi *vsi;
 121	int i, bkt;
 122
 123	vsi = i40e_dbg_find_vsi(pf, seid);
 124	if (!vsi) {
 125		dev_info(&pf->pdev->dev,
 126			 "dump %d: seid not found\n", seid);
 127		return;
 128	}
 129	dev_info(&pf->pdev->dev, "vsi seid %d\n", seid);
 130	if (vsi->netdev) {
 131		struct net_device *nd = vsi->netdev;
 132
 133		dev_info(&pf->pdev->dev, "    netdev: name = %s, state = %lu, flags = 0x%08x\n",
 134			 nd->name, nd->state, nd->flags);
 135		dev_info(&pf->pdev->dev, "        features      = 0x%08lx\n",
 136			 (unsigned long int)nd->features);
 137		dev_info(&pf->pdev->dev, "        hw_features   = 0x%08lx\n",
 138			 (unsigned long int)nd->hw_features);
 139		dev_info(&pf->pdev->dev, "        vlan_features = 0x%08lx\n",
 140			 (unsigned long int)nd->vlan_features);
 141	}
 142	dev_info(&pf->pdev->dev,
 143		 "    flags = 0x%08lx, netdev_registered = %i, current_netdev_flags = 0x%04x\n",
 144		 vsi->flags, vsi->netdev_registered, vsi->current_netdev_flags);
 145	for (i = 0; i < BITS_TO_LONGS(__I40E_VSI_STATE_SIZE__); i++)
 146		dev_info(&pf->pdev->dev,
 147			 "    state[%d] = %08lx\n",
 148			 i, vsi->state[i]);
 149	if (vsi == pf->vsi[pf->lan_vsi])
 150		dev_info(&pf->pdev->dev, "    MAC address: %pM Port MAC: %pM\n",
 151			 pf->hw.mac.addr,
 152			 pf->hw.mac.port_addr);
 153	hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
 154		dev_info(&pf->pdev->dev,
 155			 "    mac_filter_hash: %pM vid=%d, state %s\n",
 156			 f->macaddr, f->vlan,
 157			 i40e_filter_state_string[f->state]);
 158	}
 159	dev_info(&pf->pdev->dev, "    active_filters %u, promisc_threshold %u, overflow promisc %s\n",
 160		 vsi->active_filters, vsi->promisc_threshold,
 161		 (test_bit(__I40E_VSI_OVERFLOW_PROMISC, vsi->state) ?
 162		  "ON" : "OFF"));
 163	nstat = i40e_get_vsi_stats_struct(vsi);
 164	dev_info(&pf->pdev->dev,
 165		 "    net_stats: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
 166		 (unsigned long int)nstat->rx_packets,
 167		 (unsigned long int)nstat->rx_bytes,
 168		 (unsigned long int)nstat->rx_errors,
 169		 (unsigned long int)nstat->rx_dropped);
 170	dev_info(&pf->pdev->dev,
 171		 "    net_stats: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
 172		 (unsigned long int)nstat->tx_packets,
 173		 (unsigned long int)nstat->tx_bytes,
 174		 (unsigned long int)nstat->tx_errors,
 175		 (unsigned long int)nstat->tx_dropped);
 176	dev_info(&pf->pdev->dev,
 177		 "    net_stats: multicast = %lu, collisions = %lu\n",
 178		 (unsigned long int)nstat->multicast,
 179		 (unsigned long int)nstat->collisions);
 180	dev_info(&pf->pdev->dev,
 181		 "    net_stats: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
 182		 (unsigned long int)nstat->rx_length_errors,
 183		 (unsigned long int)nstat->rx_over_errors,
 184		 (unsigned long int)nstat->rx_crc_errors);
 185	dev_info(&pf->pdev->dev,
 186		 "    net_stats: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
 187		 (unsigned long int)nstat->rx_frame_errors,
 188		 (unsigned long int)nstat->rx_fifo_errors,
 189		 (unsigned long int)nstat->rx_missed_errors);
 190	dev_info(&pf->pdev->dev,
 191		 "    net_stats: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
 192		 (unsigned long int)nstat->tx_aborted_errors,
 193		 (unsigned long int)nstat->tx_carrier_errors,
 194		 (unsigned long int)nstat->tx_fifo_errors);
 195	dev_info(&pf->pdev->dev,
 196		 "    net_stats: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
 197		 (unsigned long int)nstat->tx_heartbeat_errors,
 198		 (unsigned long int)nstat->tx_window_errors);
 199	dev_info(&pf->pdev->dev,
 200		 "    net_stats: rx_compressed = %lu, tx_compressed = %lu\n",
 201		 (unsigned long int)nstat->rx_compressed,
 202		 (unsigned long int)nstat->tx_compressed);
 203	dev_info(&pf->pdev->dev,
 204		 "    net_stats_offsets: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
 205		 (unsigned long int)vsi->net_stats_offsets.rx_packets,
 206		 (unsigned long int)vsi->net_stats_offsets.rx_bytes,
 207		 (unsigned long int)vsi->net_stats_offsets.rx_errors,
 208		 (unsigned long int)vsi->net_stats_offsets.rx_dropped);
 209	dev_info(&pf->pdev->dev,
 210		 "    net_stats_offsets: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
 211		 (unsigned long int)vsi->net_stats_offsets.tx_packets,
 212		 (unsigned long int)vsi->net_stats_offsets.tx_bytes,
 213		 (unsigned long int)vsi->net_stats_offsets.tx_errors,
 214		 (unsigned long int)vsi->net_stats_offsets.tx_dropped);
 215	dev_info(&pf->pdev->dev,
 216		 "    net_stats_offsets: multicast = %lu, collisions = %lu\n",
 217		 (unsigned long int)vsi->net_stats_offsets.multicast,
 218		 (unsigned long int)vsi->net_stats_offsets.collisions);
 219	dev_info(&pf->pdev->dev,
 220		 "    net_stats_offsets: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
 221		 (unsigned long int)vsi->net_stats_offsets.rx_length_errors,
 222		 (unsigned long int)vsi->net_stats_offsets.rx_over_errors,
 223		 (unsigned long int)vsi->net_stats_offsets.rx_crc_errors);
 224	dev_info(&pf->pdev->dev,
 225		 "    net_stats_offsets: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
 226		 (unsigned long int)vsi->net_stats_offsets.rx_frame_errors,
 227		 (unsigned long int)vsi->net_stats_offsets.rx_fifo_errors,
 228		 (unsigned long int)vsi->net_stats_offsets.rx_missed_errors);
 229	dev_info(&pf->pdev->dev,
 230		 "    net_stats_offsets: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
 231		 (unsigned long int)vsi->net_stats_offsets.tx_aborted_errors,
 232		 (unsigned long int)vsi->net_stats_offsets.tx_carrier_errors,
 233		 (unsigned long int)vsi->net_stats_offsets.tx_fifo_errors);
 234	dev_info(&pf->pdev->dev,
 235		 "    net_stats_offsets: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
 236		 (unsigned long int)vsi->net_stats_offsets.tx_heartbeat_errors,
 237		 (unsigned long int)vsi->net_stats_offsets.tx_window_errors);
 238	dev_info(&pf->pdev->dev,
 239		 "    net_stats_offsets: rx_compressed = %lu, tx_compressed = %lu\n",
 240		 (unsigned long int)vsi->net_stats_offsets.rx_compressed,
 241		 (unsigned long int)vsi->net_stats_offsets.tx_compressed);
 242	dev_info(&pf->pdev->dev,
 243		 "    tx_restart = %llu, tx_busy = %llu, rx_buf_failed = %llu, rx_page_failed = %llu\n",
 244		 vsi->tx_restart, vsi->tx_busy,
 245		 vsi->rx_buf_failed, vsi->rx_page_failed);
 246	rcu_read_lock();
 247	for (i = 0; i < vsi->num_queue_pairs; i++) {
 248		struct i40e_ring *rx_ring = READ_ONCE(vsi->rx_rings[i]);
 249
 250		if (!rx_ring)
 251			continue;
 252
 253		dev_info(&pf->pdev->dev,
 254			 "    rx_rings[%i]: state = %lu, queue_index = %d, reg_idx = %d\n",
 255			 i, *rx_ring->state,
 256			 rx_ring->queue_index,
 257			 rx_ring->reg_idx);
 258		dev_info(&pf->pdev->dev,
 259			 "    rx_rings[%i]: rx_buf_len = %d\n",
 260			 i, rx_ring->rx_buf_len);
 261		dev_info(&pf->pdev->dev,
 262			 "    rx_rings[%i]: next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
 263			 i,
 264			 rx_ring->next_to_use,
 265			 rx_ring->next_to_clean,
 266			 rx_ring->ring_active);
 267		dev_info(&pf->pdev->dev,
 268			 "    rx_rings[%i]: rx_stats: packets = %lld, bytes = %lld, non_eop_descs = %lld\n",
 269			 i, rx_ring->stats.packets,
 270			 rx_ring->stats.bytes,
 271			 rx_ring->rx_stats.non_eop_descs);
 272		dev_info(&pf->pdev->dev,
 273			 "    rx_rings[%i]: rx_stats: alloc_page_failed = %lld, alloc_buff_failed = %lld\n",
 274			 i,
 275			 rx_ring->rx_stats.alloc_page_failed,
 276			 rx_ring->rx_stats.alloc_buff_failed);
 277		dev_info(&pf->pdev->dev,
 278			 "    rx_rings[%i]: rx_stats: realloc_count = 0, page_reuse_count = %lld\n",
 279			 i,
 280			 rx_ring->rx_stats.page_reuse_count);
 281		dev_info(&pf->pdev->dev,
 282			 "    rx_rings[%i]: size = %i\n",
 283			 i, rx_ring->size);
 284		dev_info(&pf->pdev->dev,
 285			 "    rx_rings[%i]: itr_setting = %d (%s)\n",
 286			 i, rx_ring->itr_setting,
 287			 ITR_IS_DYNAMIC(rx_ring->itr_setting) ? "dynamic" : "fixed");
 288	}
 289	for (i = 0; i < vsi->num_queue_pairs; i++) {
 290		struct i40e_ring *tx_ring = READ_ONCE(vsi->tx_rings[i]);
 291
 292		if (!tx_ring)
 293			continue;
 294
 295		dev_info(&pf->pdev->dev,
 296			 "    tx_rings[%i]: state = %lu, queue_index = %d, reg_idx = %d\n",
 297			 i, *tx_ring->state,
 298			 tx_ring->queue_index,
 299			 tx_ring->reg_idx);
 300		dev_info(&pf->pdev->dev,
 301			 "    tx_rings[%i]: next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
 302			 i,
 303			 tx_ring->next_to_use,
 304			 tx_ring->next_to_clean,
 305			 tx_ring->ring_active);
 306		dev_info(&pf->pdev->dev,
 307			 "    tx_rings[%i]: tx_stats: packets = %lld, bytes = %lld, restart_queue = %lld\n",
 308			 i, tx_ring->stats.packets,
 309			 tx_ring->stats.bytes,
 310			 tx_ring->tx_stats.restart_queue);
 311		dev_info(&pf->pdev->dev,
 312			 "    tx_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld, tx_stopped = %lld\n",
 313			 i,
 314			 tx_ring->tx_stats.tx_busy,
 315			 tx_ring->tx_stats.tx_done_old,
 316			 tx_ring->tx_stats.tx_stopped);
 317		dev_info(&pf->pdev->dev,
 318			 "    tx_rings[%i]: size = %i\n",
 319			 i, tx_ring->size);
 320		dev_info(&pf->pdev->dev,
 321			 "    tx_rings[%i]: DCB tc = %d\n",
 322			 i, tx_ring->dcb_tc);
 323		dev_info(&pf->pdev->dev,
 324			 "    tx_rings[%i]: itr_setting = %d (%s)\n",
 325			 i, tx_ring->itr_setting,
 326			 ITR_IS_DYNAMIC(tx_ring->itr_setting) ? "dynamic" : "fixed");
 327	}
 328	if (i40e_enabled_xdp_vsi(vsi)) {
 329		for (i = 0; i < vsi->num_queue_pairs; i++) {
 330			struct i40e_ring *xdp_ring = READ_ONCE(vsi->xdp_rings[i]);
 331
 332			if (!xdp_ring)
 333				continue;
 334
 335			dev_info(&pf->pdev->dev,
 336				 "    xdp_rings[%i]: state = %lu, queue_index = %d, reg_idx = %d\n",
 337				 i, *xdp_ring->state,
 338				 xdp_ring->queue_index,
 339				 xdp_ring->reg_idx);
 340			dev_info(&pf->pdev->dev,
 341				 "    xdp_rings[%i]: next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
 342				 i,
 343				 xdp_ring->next_to_use,
 344				 xdp_ring->next_to_clean,
 345				 xdp_ring->ring_active);
 346			dev_info(&pf->pdev->dev,
 347				 "    xdp_rings[%i]: tx_stats: packets = %lld, bytes = %lld, restart_queue = %lld\n",
 348				 i, xdp_ring->stats.packets,
 349				 xdp_ring->stats.bytes,
 350				 xdp_ring->tx_stats.restart_queue);
 351			dev_info(&pf->pdev->dev,
 352				 "    xdp_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld\n",
 353				 i,
 354				 xdp_ring->tx_stats.tx_busy,
 355				 xdp_ring->tx_stats.tx_done_old);
 356			dev_info(&pf->pdev->dev,
 357				 "    xdp_rings[%i]: size = %i\n",
 358				 i, xdp_ring->size);
 359			dev_info(&pf->pdev->dev,
 360				 "    xdp_rings[%i]: DCB tc = %d\n",
 361				 i, xdp_ring->dcb_tc);
 362			dev_info(&pf->pdev->dev,
 363				 "    xdp_rings[%i]: itr_setting = %d (%s)\n",
 364				 i, xdp_ring->itr_setting,
 365				 ITR_IS_DYNAMIC(xdp_ring->itr_setting) ?
 366				 "dynamic" : "fixed");
 367		}
 368	}
 369	rcu_read_unlock();
 370	dev_info(&pf->pdev->dev,
 371		 "    work_limit = %d\n",
 372		 vsi->work_limit);
 373	dev_info(&pf->pdev->dev,
 374		 "    max_frame = %d, rx_buf_len = %d dtype = %d\n",
 375		 vsi->max_frame, vsi->rx_buf_len, 0);
 376	dev_info(&pf->pdev->dev,
 377		 "    num_q_vectors = %i, base_vector = %i\n",
 378		 vsi->num_q_vectors, vsi->base_vector);
 379	dev_info(&pf->pdev->dev,
 380		 "    seid = %d, id = %d, uplink_seid = %d\n",
 381		 vsi->seid, vsi->id, vsi->uplink_seid);
 382	dev_info(&pf->pdev->dev,
 383		 "    base_queue = %d, num_queue_pairs = %d, num_tx_desc = %d, num_rx_desc = %d\n",
 384		 vsi->base_queue, vsi->num_queue_pairs, vsi->num_tx_desc,
 385		 vsi->num_rx_desc);
 386	dev_info(&pf->pdev->dev, "    type = %i\n", vsi->type);
 387	if (vsi->type == I40E_VSI_SRIOV)
 388		dev_info(&pf->pdev->dev, "    VF ID = %i\n", vsi->vf_id);
 389	dev_info(&pf->pdev->dev,
 390		 "    info: valid_sections = 0x%04x, switch_id = 0x%04x\n",
 391		 vsi->info.valid_sections, vsi->info.switch_id);
 392	dev_info(&pf->pdev->dev,
 393		 "    info: sw_reserved[] = 0x%02x 0x%02x\n",
 394		 vsi->info.sw_reserved[0], vsi->info.sw_reserved[1]);
 395	dev_info(&pf->pdev->dev,
 396		 "    info: sec_flags = 0x%02x, sec_reserved = 0x%02x\n",
 397		 vsi->info.sec_flags, vsi->info.sec_reserved);
 398	dev_info(&pf->pdev->dev,
 399		 "    info: pvid = 0x%04x, fcoe_pvid = 0x%04x, port_vlan_flags = 0x%02x\n",
 400		 vsi->info.pvid, vsi->info.fcoe_pvid,
 401		 vsi->info.port_vlan_flags);
 402	dev_info(&pf->pdev->dev,
 403		 "    info: pvlan_reserved[] = 0x%02x 0x%02x 0x%02x\n",
 404		 vsi->info.pvlan_reserved[0], vsi->info.pvlan_reserved[1],
 405		 vsi->info.pvlan_reserved[2]);
 406	dev_info(&pf->pdev->dev,
 407		 "    info: ingress_table = 0x%08x, egress_table = 0x%08x\n",
 408		 vsi->info.ingress_table, vsi->info.egress_table);
 409	dev_info(&pf->pdev->dev,
 410		 "    info: cas_pv_stag = 0x%04x, cas_pv_flags= 0x%02x, cas_pv_reserved = 0x%02x\n",
 411		 vsi->info.cas_pv_tag, vsi->info.cas_pv_flags,
 412		 vsi->info.cas_pv_reserved);
 413	dev_info(&pf->pdev->dev,
 414		 "    info: queue_mapping[0..7 ] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 415		 vsi->info.queue_mapping[0], vsi->info.queue_mapping[1],
 416		 vsi->info.queue_mapping[2], vsi->info.queue_mapping[3],
 417		 vsi->info.queue_mapping[4], vsi->info.queue_mapping[5],
 418		 vsi->info.queue_mapping[6], vsi->info.queue_mapping[7]);
 419	dev_info(&pf->pdev->dev,
 420		 "    info: queue_mapping[8..15] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 421		 vsi->info.queue_mapping[8], vsi->info.queue_mapping[9],
 422		 vsi->info.queue_mapping[10], vsi->info.queue_mapping[11],
 423		 vsi->info.queue_mapping[12], vsi->info.queue_mapping[13],
 424		 vsi->info.queue_mapping[14], vsi->info.queue_mapping[15]);
 425	dev_info(&pf->pdev->dev,
 426		 "    info: tc_mapping[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 427		 vsi->info.tc_mapping[0], vsi->info.tc_mapping[1],
 428		 vsi->info.tc_mapping[2], vsi->info.tc_mapping[3],
 429		 vsi->info.tc_mapping[4], vsi->info.tc_mapping[5],
 430		 vsi->info.tc_mapping[6], vsi->info.tc_mapping[7]);
 431	dev_info(&pf->pdev->dev,
 432		 "    info: queueing_opt_flags = 0x%02x  queueing_opt_reserved[0..2] = 0x%02x 0x%02x 0x%02x\n",
 433		 vsi->info.queueing_opt_flags,
 434		 vsi->info.queueing_opt_reserved[0],
 435		 vsi->info.queueing_opt_reserved[1],
 436		 vsi->info.queueing_opt_reserved[2]);
 437	dev_info(&pf->pdev->dev,
 438		 "    info: up_enable_bits = 0x%02x\n",
 439		 vsi->info.up_enable_bits);
 440	dev_info(&pf->pdev->dev,
 441		 "    info: sched_reserved = 0x%02x, outer_up_table = 0x%04x\n",
 442		 vsi->info.sched_reserved, vsi->info.outer_up_table);
 443	dev_info(&pf->pdev->dev,
 444		 "    info: cmd_reserved[] = 0x%02x 0x%02x 0x%02x 0x0%02x 0x%02x 0x%02x 0x%02x 0x0%02x\n",
 445		 vsi->info.cmd_reserved[0], vsi->info.cmd_reserved[1],
 446		 vsi->info.cmd_reserved[2], vsi->info.cmd_reserved[3],
 447		 vsi->info.cmd_reserved[4], vsi->info.cmd_reserved[5],
 448		 vsi->info.cmd_reserved[6], vsi->info.cmd_reserved[7]);
 449	dev_info(&pf->pdev->dev,
 450		 "    info: qs_handle[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
 451		 vsi->info.qs_handle[0], vsi->info.qs_handle[1],
 452		 vsi->info.qs_handle[2], vsi->info.qs_handle[3],
 453		 vsi->info.qs_handle[4], vsi->info.qs_handle[5],
 454		 vsi->info.qs_handle[6], vsi->info.qs_handle[7]);
 455	dev_info(&pf->pdev->dev,
 456		 "    info: stat_counter_idx = 0x%04x, sched_id = 0x%04x\n",
 457		 vsi->info.stat_counter_idx, vsi->info.sched_id);
 458	dev_info(&pf->pdev->dev,
 459		 "    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",
 460		 vsi->info.resp_reserved[0], vsi->info.resp_reserved[1],
 461		 vsi->info.resp_reserved[2], vsi->info.resp_reserved[3],
 462		 vsi->info.resp_reserved[4], vsi->info.resp_reserved[5],
 463		 vsi->info.resp_reserved[6], vsi->info.resp_reserved[7],
 464		 vsi->info.resp_reserved[8], vsi->info.resp_reserved[9],
 465		 vsi->info.resp_reserved[10], vsi->info.resp_reserved[11]);
 466	dev_info(&pf->pdev->dev, "    idx = %d\n", vsi->idx);
 467	dev_info(&pf->pdev->dev,
 468		 "    tc_config: numtc = %d, enabled_tc = 0x%x\n",
 469		 vsi->tc_config.numtc, vsi->tc_config.enabled_tc);
 470	for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
 471		dev_info(&pf->pdev->dev,
 472			 "    tc_config: tc = %d, qoffset = %d, qcount = %d, netdev_tc = %d\n",
 473			 i, vsi->tc_config.tc_info[i].qoffset,
 474			 vsi->tc_config.tc_info[i].qcount,
 475			 vsi->tc_config.tc_info[i].netdev_tc);
 476	}
 477	dev_info(&pf->pdev->dev,
 478		 "    bw: bw_limit = %d, bw_max_quanta = %d\n",
 479		 vsi->bw_limit, vsi->bw_max_quanta);
 480	for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
 481		dev_info(&pf->pdev->dev,
 482			 "    bw[%d]: ets_share_credits = %d, ets_limit_credits = %d, max_quanta = %d\n",
 483			 i, vsi->bw_ets_share_credits[i],
 484			 vsi->bw_ets_limit_credits[i],
 485			 vsi->bw_ets_max_quanta[i]);
 486	}
 487}
 488
 489/**
 490 * i40e_dbg_dump_aq_desc - handles dump aq_desc write into command datum
 491 * @pf: the i40e_pf created in command write
 492 **/
 493static void i40e_dbg_dump_aq_desc(struct i40e_pf *pf)
 494{
 495	struct i40e_adminq_ring *ring;
 496	struct i40e_hw *hw = &pf->hw;
 497	char hdr[32];
 498	int i;
 499
 500	snprintf(hdr, sizeof(hdr), "%s %s:         ",
 501		 dev_driver_string(&pf->pdev->dev),
 502		 dev_name(&pf->pdev->dev));
 503
 504	/* first the send (command) ring, then the receive (event) ring */
 505	dev_info(&pf->pdev->dev, "AdminQ Tx Ring\n");
 506	ring = &(hw->aq.asq);
 507	for (i = 0; i < ring->count; i++) {
 508		struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
 509
 510		dev_info(&pf->pdev->dev,
 511			 "   at[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
 512			 i, d->flags, d->opcode, d->datalen, d->retval,
 513			 d->cookie_high, d->cookie_low);
 514		print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
 515			       16, 1, d->params.raw, 16, 0);
 516	}
 517
 518	dev_info(&pf->pdev->dev, "AdminQ Rx Ring\n");
 519	ring = &(hw->aq.arq);
 520	for (i = 0; i < ring->count; i++) {
 521		struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);
 522
 523		dev_info(&pf->pdev->dev,
 524			 "   ar[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
 525			 i, d->flags, d->opcode, d->datalen, d->retval,
 526			 d->cookie_high, d->cookie_low);
 527		print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
 528			       16, 1, d->params.raw, 16, 0);
 529	}
 530}
 531
 532/**
 533 * i40e_dbg_dump_desc - handles dump desc write into command datum
 534 * @cnt: number of arguments that the user supplied
 535 * @vsi_seid: vsi id entered by user
 536 * @ring_id: ring id entered by user
 537 * @desc_n: descriptor number entered by user
 538 * @pf: the i40e_pf created in command write
 539 * @type: enum describing whether ring is RX, TX or XDP
 540 **/
 541static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n,
 542			       struct i40e_pf *pf, enum ring_type type)
 543{
 544	bool is_rx_ring = type == RING_TYPE_RX;
 545	struct i40e_tx_desc *txd;
 546	union i40e_rx_desc *rxd;
 547	struct i40e_ring *ring;
 548	struct i40e_vsi *vsi;
 549	int i;
 550
 551	vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 552	if (!vsi) {
 553		dev_info(&pf->pdev->dev, "vsi %d not found\n", vsi_seid);
 554		return;
 555	}
 556	if (vsi->type != I40E_VSI_MAIN &&
 557	    vsi->type != I40E_VSI_FDIR &&
 558	    vsi->type != I40E_VSI_VMDQ2) {
 559		dev_info(&pf->pdev->dev,
 560			 "vsi %d type %d descriptor rings not available\n",
 561			 vsi_seid, vsi->type);
 562		return;
 563	}
 564	if (type == RING_TYPE_XDP && !i40e_enabled_xdp_vsi(vsi)) {
 565		dev_info(&pf->pdev->dev, "XDP not enabled on VSI %d\n", vsi_seid);
 566		return;
 567	}
 568	if (ring_id >= vsi->num_queue_pairs || ring_id < 0) {
 569		dev_info(&pf->pdev->dev, "ring %d not found\n", ring_id);
 570		return;
 571	}
 572	if (!vsi->tx_rings || !vsi->tx_rings[0]->desc) {
 573		dev_info(&pf->pdev->dev,
 574			 "descriptor rings have not been allocated for vsi %d\n",
 575			 vsi_seid);
 576		return;
 577	}
 578
 579	switch (type) {
 580	case RING_TYPE_RX:
 581		ring = kmemdup(vsi->rx_rings[ring_id], sizeof(*ring), GFP_KERNEL);
 582		break;
 583	case RING_TYPE_TX:
 584		ring = kmemdup(vsi->tx_rings[ring_id], sizeof(*ring), GFP_KERNEL);
 585		break;
 586	case RING_TYPE_XDP:
 587		ring = kmemdup(vsi->xdp_rings[ring_id], sizeof(*ring), GFP_KERNEL);
 588		break;
 589	default:
 590		ring = NULL;
 591		break;
 592	}
 593	if (!ring)
 594		return;
 595
 596	if (cnt == 2) {
 597		switch (type) {
 598		case RING_TYPE_RX:
 599			dev_info(&pf->pdev->dev, "VSI = %02i Rx ring = %02i\n", vsi_seid, ring_id);
 600			break;
 601		case RING_TYPE_TX:
 602			dev_info(&pf->pdev->dev, "VSI = %02i Tx ring = %02i\n", vsi_seid, ring_id);
 603			break;
 604		case RING_TYPE_XDP:
 605			dev_info(&pf->pdev->dev, "VSI = %02i XDP ring = %02i\n", vsi_seid, ring_id);
 606			break;
 607		}
 608		for (i = 0; i < ring->count; i++) {
 609			if (!is_rx_ring) {
 610				txd = I40E_TX_DESC(ring, i);
 611				dev_info(&pf->pdev->dev,
 612					 "   d[%03x] = 0x%016llx 0x%016llx\n",
 613					 i, txd->buffer_addr,
 614					 txd->cmd_type_offset_bsz);
 615			} else {
 616				rxd = I40E_RX_DESC(ring, i);
 617				dev_info(&pf->pdev->dev,
 618					 "   d[%03x] = 0x%016llx 0x%016llx\n",
 619					 i, rxd->read.pkt_addr,
 620					 rxd->read.hdr_addr);
 621			}
 622		}
 623	} else if (cnt == 3) {
 624		if (desc_n >= ring->count || desc_n < 0) {
 625			dev_info(&pf->pdev->dev,
 626				 "descriptor %d not found\n", desc_n);
 627			goto out;
 628		}
 629		if (!is_rx_ring) {
 630			txd = I40E_TX_DESC(ring, desc_n);
 631			dev_info(&pf->pdev->dev,
 632				 "vsi = %02i tx ring = %02i d[%03x] = 0x%016llx 0x%016llx\n",
 633				 vsi_seid, ring_id, desc_n,
 634				 txd->buffer_addr, txd->cmd_type_offset_bsz);
 635		} else {
 636			rxd = I40E_RX_DESC(ring, desc_n);
 637			dev_info(&pf->pdev->dev,
 638				 "vsi = %02i rx ring = %02i d[%03x] = 0x%016llx 0x%016llx\n",
 639				 vsi_seid, ring_id, desc_n,
 640				 rxd->read.pkt_addr, rxd->read.hdr_addr);
 641		}
 642	} else {
 643		dev_info(&pf->pdev->dev, "dump desc rx/tx/xdp <vsi_seid> <ring_id> [<desc_n>]\n");
 644	}
 645
 646out:
 647	kfree(ring);
 648}
 649
 650/**
 651 * i40e_dbg_dump_vsi_no_seid - handles dump vsi write into command datum
 652 * @pf: the i40e_pf created in command write
 653 **/
 654static void i40e_dbg_dump_vsi_no_seid(struct i40e_pf *pf)
 655{
 
 656	int i;
 657
 658	for (i = 0; i < pf->num_alloc_vsi; i++)
 659		if (pf->vsi[i])
 660			dev_info(&pf->pdev->dev, "dump vsi[%d]: %d\n",
 661				 i, pf->vsi[i]->seid);
 662}
 663
 664/**
 665 * i40e_dbg_dump_eth_stats - handles dump stats write into command datum
 666 * @pf: the i40e_pf created in command write
 667 * @estats: the eth stats structure to be dumped
 668 **/
 669static void i40e_dbg_dump_eth_stats(struct i40e_pf *pf,
 670				    struct i40e_eth_stats *estats)
 671{
 672	dev_info(&pf->pdev->dev, "  ethstats:\n");
 673	dev_info(&pf->pdev->dev,
 674		 "    rx_bytes = \t%lld \trx_unicast = \t\t%lld \trx_multicast = \t%lld\n",
 675		estats->rx_bytes, estats->rx_unicast, estats->rx_multicast);
 676	dev_info(&pf->pdev->dev,
 677		 "    rx_broadcast = \t%lld \trx_discards = \t\t%lld\n",
 678		 estats->rx_broadcast, estats->rx_discards);
 679	dev_info(&pf->pdev->dev,
 680		 "    rx_unknown_protocol = \t%lld \ttx_bytes = \t%lld\n",
 681		 estats->rx_unknown_protocol, estats->tx_bytes);
 682	dev_info(&pf->pdev->dev,
 683		 "    tx_unicast = \t%lld \ttx_multicast = \t\t%lld \ttx_broadcast = \t%lld\n",
 684		 estats->tx_unicast, estats->tx_multicast, estats->tx_broadcast);
 685	dev_info(&pf->pdev->dev,
 686		 "    tx_discards = \t%lld \ttx_errors = \t\t%lld\n",
 687		 estats->tx_discards, estats->tx_errors);
 688}
 689
 690/**
 691 * i40e_dbg_dump_veb_seid - handles dump stats of a single given veb
 692 * @pf: the i40e_pf created in command write
 693 * @seid: the seid the user put in
 694 **/
 695static void i40e_dbg_dump_veb_seid(struct i40e_pf *pf, int seid)
 696{
 697	struct i40e_veb *veb;
 698
 699	veb = i40e_dbg_find_veb(pf, seid);
 700	if (!veb) {
 701		dev_info(&pf->pdev->dev, "can't find veb %d\n", seid);
 702		return;
 703	}
 704	dev_info(&pf->pdev->dev,
 705		 "veb idx=%d,%d stats_ic=%d  seid=%d uplink=%d mode=%s\n",
 706		 veb->idx, veb->veb_idx, veb->stats_idx, veb->seid,
 707		 veb->uplink_seid,
 708		 veb->bridge_mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
 709	i40e_dbg_dump_eth_stats(pf, &veb->stats);
 710}
 711
 712/**
 713 * i40e_dbg_dump_veb_all - dumps all known veb's stats
 714 * @pf: the i40e_pf created in command write
 715 **/
 716static void i40e_dbg_dump_veb_all(struct i40e_pf *pf)
 717{
 718	struct i40e_veb *veb;
 719	int i;
 720
 721	for (i = 0; i < I40E_MAX_VEB; i++) {
 722		veb = pf->veb[i];
 723		if (veb)
 724			i40e_dbg_dump_veb_seid(pf, veb->seid);
 725	}
 726}
 727
 728/**
 729 * i40e_dbg_dump_vf - dump VF info
 730 * @pf: the i40e_pf created in command write
 731 * @vf_id: the vf_id from the user
 732 **/
 733static void i40e_dbg_dump_vf(struct i40e_pf *pf, int vf_id)
 734{
 735	struct i40e_vf *vf;
 736	struct i40e_vsi *vsi;
 737
 738	if (!pf->num_alloc_vfs) {
 739		dev_info(&pf->pdev->dev, "no VFs allocated\n");
 740	} else if ((vf_id >= 0) && (vf_id < pf->num_alloc_vfs)) {
 741		vf = &pf->vf[vf_id];
 742		vsi = pf->vsi[vf->lan_vsi_idx];
 743		dev_info(&pf->pdev->dev, "vf %2d: VSI id=%d, seid=%d, qps=%d\n",
 744			 vf_id, vf->lan_vsi_id, vsi->seid, vf->num_queue_pairs);
 745		dev_info(&pf->pdev->dev, "       num MDD=%lld\n",
 746			 vf->num_mdd_events);
 747	} else {
 748		dev_info(&pf->pdev->dev, "invalid VF id %d\n", vf_id);
 749	}
 750}
 751
 752/**
 753 * i40e_dbg_dump_vf_all - dump VF info for all VFs
 754 * @pf: the i40e_pf created in command write
 755 **/
 756static void i40e_dbg_dump_vf_all(struct i40e_pf *pf)
 757{
 758	int i;
 759
 760	if (!pf->num_alloc_vfs)
 761		dev_info(&pf->pdev->dev, "no VFs enabled!\n");
 762	else
 763		for (i = 0; i < pf->num_alloc_vfs; i++)
 764			i40e_dbg_dump_vf(pf, i);
 765}
 766
 767/**
 768 * i40e_dbg_command_write - write into command datum
 769 * @filp: the opened file
 770 * @buffer: where to find the user's data
 771 * @count: the length of the user's data
 772 * @ppos: file position offset
 773 **/
 774static ssize_t i40e_dbg_command_write(struct file *filp,
 775				      const char __user *buffer,
 776				      size_t count, loff_t *ppos)
 777{
 778	struct i40e_pf *pf = filp->private_data;
 779	char *cmd_buf, *cmd_buf_tmp;
 780	int bytes_not_copied;
 781	struct i40e_vsi *vsi;
 782	int vsi_seid;
 783	int veb_seid;
 784	int vf_id;
 785	int cnt;
 786
 787	/* don't allow partial writes */
 788	if (*ppos != 0)
 789		return 0;
 790
 791	cmd_buf = kzalloc(count + 1, GFP_KERNEL);
 792	if (!cmd_buf)
 793		return count;
 794	bytes_not_copied = copy_from_user(cmd_buf, buffer, count);
 795	if (bytes_not_copied) {
 796		kfree(cmd_buf);
 797		return -EFAULT;
 798	}
 799	cmd_buf[count] = '\0';
 800
 801	cmd_buf_tmp = strchr(cmd_buf, '\n');
 802	if (cmd_buf_tmp) {
 803		*cmd_buf_tmp = '\0';
 804		count = cmd_buf_tmp - cmd_buf + 1;
 805	}
 806
 807	if (strncmp(cmd_buf, "add vsi", 7) == 0) {
 808		vsi_seid = -1;
 809		cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
 810		if (cnt == 0) {
 811			/* default to PF VSI */
 812			vsi_seid = pf->vsi[pf->lan_vsi]->seid;
 813		} else if (vsi_seid < 0) {
 814			dev_info(&pf->pdev->dev, "add VSI %d: bad vsi seid\n",
 815				 vsi_seid);
 816			goto command_write_done;
 817		}
 818
 819		/* By default we are in VEPA mode, if this is the first VF/VMDq
 820		 * VSI to be added switch to VEB mode.
 821		 */
 822		if (!test_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags)) {
 823			set_bit(I40E_FLAG_VEB_MODE_ENA, pf->flags);
 824			i40e_do_reset_safe(pf, I40E_PF_RESET_FLAG);
 825		}
 826
 827		vsi = i40e_vsi_setup(pf, I40E_VSI_VMDQ2, vsi_seid, 0);
 828		if (vsi)
 829			dev_info(&pf->pdev->dev, "added VSI %d to relay %d\n",
 830				 vsi->seid, vsi->uplink_seid);
 831		else
 832			dev_info(&pf->pdev->dev, "'%s' failed\n", cmd_buf);
 833
 834	} else if (strncmp(cmd_buf, "del vsi", 7) == 0) {
 835		cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
 836		if (cnt != 1) {
 837			dev_info(&pf->pdev->dev,
 838				 "del vsi: bad command string, cnt=%d\n",
 839				 cnt);
 840			goto command_write_done;
 841		}
 842		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 843		if (!vsi) {
 844			dev_info(&pf->pdev->dev, "del VSI %d: seid not found\n",
 845				 vsi_seid);
 846			goto command_write_done;
 847		}
 848
 849		dev_info(&pf->pdev->dev, "deleting VSI %d\n", vsi_seid);
 850		i40e_vsi_release(vsi);
 851
 852	} else if (strncmp(cmd_buf, "add relay", 9) == 0) {
 853		struct i40e_veb *veb;
 854		int uplink_seid, i;
 
 855
 856		cnt = sscanf(&cmd_buf[9], "%i %i", &uplink_seid, &vsi_seid);
 857		if (cnt != 2) {
 
 
 
 858			dev_info(&pf->pdev->dev,
 859				 "add relay: bad command string, cnt=%d\n",
 860				 cnt);
 861			goto command_write_done;
 862		} else if (uplink_seid < 0) {
 863			dev_info(&pf->pdev->dev,
 864				 "add relay %d: bad uplink seid\n",
 865				 uplink_seid);
 866			goto command_write_done;
 867		}
 868
 869		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 870		if (!vsi) {
 871			dev_info(&pf->pdev->dev,
 872				 "add relay: VSI %d not found\n", vsi_seid);
 873			goto command_write_done;
 874		}
 875
 876		for (i = 0; i < I40E_MAX_VEB; i++)
 877			if (pf->veb[i] && pf->veb[i]->seid == uplink_seid)
 878				break;
 879		if (i >= I40E_MAX_VEB && uplink_seid != 0 &&
 880		    uplink_seid != pf->mac_seid) {
 881			dev_info(&pf->pdev->dev,
 882				 "add relay: relay uplink %d not found\n",
 883				 uplink_seid);
 884			goto command_write_done;
 
 
 
 
 
 
 
 
 
 
 
 
 
 885		}
 886
 887		veb = i40e_veb_setup(pf, 0, uplink_seid, vsi_seid,
 888				     vsi->tc_config.enabled_tc);
 889		if (veb)
 890			dev_info(&pf->pdev->dev, "added relay %d\n", veb->seid);
 891		else
 892			dev_info(&pf->pdev->dev, "add relay failed\n");
 893
 894	} else if (strncmp(cmd_buf, "del relay", 9) == 0) {
 
 895		int i;
 
 896		cnt = sscanf(&cmd_buf[9], "%i", &veb_seid);
 897		if (cnt != 1) {
 898			dev_info(&pf->pdev->dev,
 899				 "del relay: bad command string, cnt=%d\n",
 900				 cnt);
 901			goto command_write_done;
 902		} else if (veb_seid < 0) {
 903			dev_info(&pf->pdev->dev,
 904				 "del relay %d: bad relay seid\n", veb_seid);
 905			goto command_write_done;
 906		}
 907
 908		/* find the veb */
 909		for (i = 0; i < I40E_MAX_VEB; i++)
 910			if (pf->veb[i] && pf->veb[i]->seid == veb_seid)
 911				break;
 
 912		if (i >= I40E_MAX_VEB) {
 913			dev_info(&pf->pdev->dev,
 914				 "del relay: relay %d not found\n", veb_seid);
 915			goto command_write_done;
 916		}
 917
 918		dev_info(&pf->pdev->dev, "deleting relay %d\n", veb_seid);
 919		i40e_veb_release(pf->veb[i]);
 920	} else if (strncmp(cmd_buf, "add pvid", 8) == 0) {
 921		unsigned int v;
 922		int ret;
 923		u16 vid;
 924
 925		cnt = sscanf(&cmd_buf[8], "%i %u", &vsi_seid, &v);
 926		if (cnt != 2) {
 927			dev_info(&pf->pdev->dev,
 928				 "add pvid: bad command string, cnt=%d\n", cnt);
 929			goto command_write_done;
 930		}
 931
 932		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 933		if (!vsi) {
 934			dev_info(&pf->pdev->dev, "add pvid: VSI %d not found\n",
 935				 vsi_seid);
 936			goto command_write_done;
 937		}
 938
 939		vid = v;
 940		ret = i40e_vsi_add_pvid(vsi, vid);
 941		if (!ret)
 942			dev_info(&pf->pdev->dev,
 943				 "add pvid: %d added to VSI %d\n",
 944				 vid, vsi_seid);
 945		else
 946			dev_info(&pf->pdev->dev,
 947				 "add pvid: %d to VSI %d failed, ret=%d\n",
 948				 vid, vsi_seid, ret);
 949
 950	} else if (strncmp(cmd_buf, "del pvid", 8) == 0) {
 951
 952		cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
 953		if (cnt != 1) {
 954			dev_info(&pf->pdev->dev,
 955				 "del pvid: bad command string, cnt=%d\n",
 956				 cnt);
 957			goto command_write_done;
 958		}
 959
 960		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
 961		if (!vsi) {
 962			dev_info(&pf->pdev->dev,
 963				 "del pvid: VSI %d not found\n", vsi_seid);
 964			goto command_write_done;
 965		}
 966
 967		i40e_vsi_remove_pvid(vsi);
 968		dev_info(&pf->pdev->dev,
 969			 "del pvid: removed from VSI %d\n", vsi_seid);
 970
 971	} else if (strncmp(cmd_buf, "dump", 4) == 0) {
 972		if (strncmp(&cmd_buf[5], "switch", 6) == 0) {
 973			i40e_fetch_switch_configuration(pf, true);
 974		} else if (strncmp(&cmd_buf[5], "vsi", 3) == 0) {
 975			cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
 976			if (cnt > 0)
 977				i40e_dbg_dump_vsi_seid(pf, vsi_seid);
 978			else
 979				i40e_dbg_dump_vsi_no_seid(pf);
 980		} else if (strncmp(&cmd_buf[5], "veb", 3) == 0) {
 981			cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
 982			if (cnt > 0)
 983				i40e_dbg_dump_veb_seid(pf, vsi_seid);
 984			else
 985				i40e_dbg_dump_veb_all(pf);
 986		} else if (strncmp(&cmd_buf[5], "vf", 2) == 0) {
 987			cnt = sscanf(&cmd_buf[7], "%i", &vf_id);
 988			if (cnt > 0)
 989				i40e_dbg_dump_vf(pf, vf_id);
 990			else
 991				i40e_dbg_dump_vf_all(pf);
 992		} else if (strncmp(&cmd_buf[5], "desc", 4) == 0) {
 993			int ring_id, desc_n;
 994			if (strncmp(&cmd_buf[10], "rx", 2) == 0) {
 995				cnt = sscanf(&cmd_buf[12], "%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_RX);
 999			} else if (strncmp(&cmd_buf[10], "tx", 2)
1000					== 0) {
1001				cnt = sscanf(&cmd_buf[12], "%i %i %i",
1002					     &vsi_seid, &ring_id, &desc_n);
1003				i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1004						   desc_n, pf, RING_TYPE_TX);
1005			} else if (strncmp(&cmd_buf[10], "xdp", 3)
1006					== 0) {
1007				cnt = sscanf(&cmd_buf[13], "%i %i %i",
1008					     &vsi_seid, &ring_id, &desc_n);
1009				i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
1010						   desc_n, pf, RING_TYPE_XDP);
1011			} else if (strncmp(&cmd_buf[10], "aq", 2) == 0) {
1012				i40e_dbg_dump_aq_desc(pf);
1013			} else {
1014				dev_info(&pf->pdev->dev,
1015					 "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1016				dev_info(&pf->pdev->dev,
1017					 "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1018				dev_info(&pf->pdev->dev,
1019					 "dump desc xdp <vsi_seid> <ring_id> [<desc_n>]\n");
1020				dev_info(&pf->pdev->dev, "dump desc aq\n");
1021			}
1022		} else if (strncmp(&cmd_buf[5], "reset stats", 11) == 0) {
1023			dev_info(&pf->pdev->dev,
1024				 "core reset count: %d\n", pf->corer_count);
1025			dev_info(&pf->pdev->dev,
1026				 "global reset count: %d\n", pf->globr_count);
1027			dev_info(&pf->pdev->dev,
1028				 "emp reset count: %d\n", pf->empr_count);
1029			dev_info(&pf->pdev->dev,
1030				 "pf reset count: %d\n", pf->pfr_count);
1031		} else if (strncmp(&cmd_buf[5], "port", 4) == 0) {
1032			struct i40e_aqc_query_port_ets_config_resp *bw_data;
1033			struct i40e_dcbx_config *cfg =
1034						&pf->hw.local_dcbx_config;
1035			struct i40e_dcbx_config *r_cfg =
1036						&pf->hw.remote_dcbx_config;
1037			int i, ret;
1038			u16 switch_id;
1039
1040			bw_data = kzalloc(sizeof(
1041				    struct i40e_aqc_query_port_ets_config_resp),
1042					  GFP_KERNEL);
1043			if (!bw_data) {
1044				ret = -ENOMEM;
1045				goto command_write_done;
1046			}
1047
1048			vsi = pf->vsi[pf->lan_vsi];
1049			switch_id =
1050				le16_to_cpu(vsi->info.switch_id) &
1051					    I40E_AQ_VSI_SW_ID_MASK;
1052
1053			ret = i40e_aq_query_port_ets_config(&pf->hw,
1054							    switch_id,
1055							    bw_data, NULL);
1056			if (ret) {
1057				dev_info(&pf->pdev->dev,
1058					 "Query Port ETS Config AQ command failed =0x%x\n",
1059					 pf->hw.aq.asq_last_status);
1060				kfree(bw_data);
1061				bw_data = NULL;
1062				goto command_write_done;
1063			}
1064			dev_info(&pf->pdev->dev,
1065				 "port bw: tc_valid=0x%x tc_strict_prio=0x%x, tc_bw_max=0x%04x,0x%04x\n",
1066				 bw_data->tc_valid_bits,
1067				 bw_data->tc_strict_priority_bits,
1068				 le16_to_cpu(bw_data->tc_bw_max[0]),
1069				 le16_to_cpu(bw_data->tc_bw_max[1]));
1070			for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1071				dev_info(&pf->pdev->dev, "port bw: tc_bw_share=%d tc_bw_limit=%d\n",
1072					 bw_data->tc_bw_share_credits[i],
1073					 le16_to_cpu(bw_data->tc_bw_limits[i]));
1074			}
1075
1076			kfree(bw_data);
1077			bw_data = NULL;
1078
1079			dev_info(&pf->pdev->dev,
1080				 "port dcbx_mode=%d\n", cfg->dcbx_mode);
1081			dev_info(&pf->pdev->dev,
1082				 "port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1083				 cfg->etscfg.willing, cfg->etscfg.cbs,
1084				 cfg->etscfg.maxtcs);
1085			for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1086				dev_info(&pf->pdev->dev, "port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1087					 i, cfg->etscfg.prioritytable[i],
1088					 cfg->etscfg.tcbwtable[i],
1089					 cfg->etscfg.tsatable[i]);
1090			}
1091			for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1092				dev_info(&pf->pdev->dev, "port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1093					 i, cfg->etsrec.prioritytable[i],
1094					 cfg->etsrec.tcbwtable[i],
1095					 cfg->etsrec.tsatable[i]);
1096			}
1097			dev_info(&pf->pdev->dev,
1098				 "port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1099				 cfg->pfc.willing, cfg->pfc.mbc,
1100				 cfg->pfc.pfccap, cfg->pfc.pfcenable);
1101			dev_info(&pf->pdev->dev,
1102				 "port app_table: num_apps=%d\n", cfg->numapps);
1103			for (i = 0; i < cfg->numapps; i++) {
1104				dev_info(&pf->pdev->dev, "port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1105					 i, cfg->app[i].priority,
1106					 cfg->app[i].selector,
1107					 cfg->app[i].protocolid);
1108			}
1109			/* Peer TLV DCBX data */
1110			dev_info(&pf->pdev->dev,
1111				 "remote port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
1112				 r_cfg->etscfg.willing,
1113				 r_cfg->etscfg.cbs, r_cfg->etscfg.maxtcs);
1114			for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1115				dev_info(&pf->pdev->dev, "remote port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1116					 i, r_cfg->etscfg.prioritytable[i],
1117					 r_cfg->etscfg.tcbwtable[i],
1118					 r_cfg->etscfg.tsatable[i]);
1119			}
1120			for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1121				dev_info(&pf->pdev->dev, "remote port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
1122					 i, r_cfg->etsrec.prioritytable[i],
1123					 r_cfg->etsrec.tcbwtable[i],
1124					 r_cfg->etsrec.tsatable[i]);
1125			}
1126			dev_info(&pf->pdev->dev,
1127				 "remote port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
1128				 r_cfg->pfc.willing,
1129				 r_cfg->pfc.mbc,
1130				 r_cfg->pfc.pfccap,
1131				 r_cfg->pfc.pfcenable);
1132			dev_info(&pf->pdev->dev,
1133				 "remote port app_table: num_apps=%d\n",
1134				 r_cfg->numapps);
1135			for (i = 0; i < r_cfg->numapps; i++) {
1136				dev_info(&pf->pdev->dev, "remote port app_table: %d prio=%d selector=%d protocol=0x%x\n",
1137					 i, r_cfg->app[i].priority,
1138					 r_cfg->app[i].selector,
1139					 r_cfg->app[i].protocolid);
1140			}
1141		} else if (strncmp(&cmd_buf[5], "debug fwdata", 12) == 0) {
1142			int cluster_id, table_id;
1143			int index, ret;
1144			u16 buff_len = 4096;
1145			u32 next_index;
1146			u8 next_table;
1147			u8 *buff;
1148			u16 rlen;
1149
1150			cnt = sscanf(&cmd_buf[18], "%i %i %i",
1151				     &cluster_id, &table_id, &index);
1152			if (cnt != 3) {
1153				dev_info(&pf->pdev->dev,
1154					 "dump debug fwdata <cluster_id> <table_id> <index>\n");
1155				goto command_write_done;
1156			}
1157
1158			dev_info(&pf->pdev->dev,
1159				 "AQ debug dump fwdata params %x %x %x %x\n",
1160				 cluster_id, table_id, index, buff_len);
1161			buff = kzalloc(buff_len, GFP_KERNEL);
1162			if (!buff)
1163				goto command_write_done;
1164
1165			ret = i40e_aq_debug_dump(&pf->hw, cluster_id, table_id,
1166						 index, buff_len, buff, &rlen,
1167						 &next_table, &next_index,
1168						 NULL);
1169			if (ret) {
1170				dev_info(&pf->pdev->dev,
1171					 "debug dump fwdata AQ Failed %d 0x%x\n",
1172					 ret, pf->hw.aq.asq_last_status);
1173				kfree(buff);
1174				buff = NULL;
1175				goto command_write_done;
1176			}
1177			dev_info(&pf->pdev->dev,
1178				 "AQ debug dump fwdata rlen=0x%x next_table=0x%x next_index=0x%x\n",
1179				 rlen, next_table, next_index);
1180			print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1181				       DUMP_PREFIX_OFFSET, 16, 1,
1182				       buff, rlen, true);
1183			kfree(buff);
1184			buff = NULL;
1185		} else {
1186			dev_info(&pf->pdev->dev,
1187				 "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");
1188			dev_info(&pf->pdev->dev, "dump switch\n");
1189			dev_info(&pf->pdev->dev, "dump vsi [seid]\n");
1190			dev_info(&pf->pdev->dev, "dump reset stats\n");
1191			dev_info(&pf->pdev->dev, "dump port\n");
1192			dev_info(&pf->pdev->dev, "dump vf [vf_id]\n");
1193			dev_info(&pf->pdev->dev,
1194				 "dump debug fwdata <cluster_id> <table_id> <index>\n");
1195		}
1196	} else if (strncmp(cmd_buf, "pfr", 3) == 0) {
1197		dev_info(&pf->pdev->dev, "debugfs: forcing PFR\n");
1198		i40e_do_reset_safe(pf, BIT(__I40E_PF_RESET_REQUESTED));
1199
1200	} else if (strncmp(cmd_buf, "corer", 5) == 0) {
1201		dev_info(&pf->pdev->dev, "debugfs: forcing CoreR\n");
1202		i40e_do_reset_safe(pf, BIT(__I40E_CORE_RESET_REQUESTED));
1203
1204	} else if (strncmp(cmd_buf, "globr", 5) == 0) {
1205		dev_info(&pf->pdev->dev, "debugfs: forcing GlobR\n");
1206		i40e_do_reset_safe(pf, BIT(__I40E_GLOBAL_RESET_REQUESTED));
1207
1208	} else if (strncmp(cmd_buf, "read", 4) == 0) {
1209		u32 address;
1210		u32 value;
1211
1212		cnt = sscanf(&cmd_buf[4], "%i", &address);
1213		if (cnt != 1) {
1214			dev_info(&pf->pdev->dev, "read <reg>\n");
1215			goto command_write_done;
1216		}
1217
1218		/* check the range on address */
1219		if (address > (pf->ioremap_len - sizeof(u32))) {
1220			dev_info(&pf->pdev->dev, "read reg address 0x%08x too large, max=0x%08lx\n",
1221				 address, (unsigned long int)(pf->ioremap_len - sizeof(u32)));
1222			goto command_write_done;
1223		}
1224
1225		value = rd32(&pf->hw, address);
1226		dev_info(&pf->pdev->dev, "read: 0x%08x = 0x%08x\n",
1227			 address, value);
1228
1229	} else if (strncmp(cmd_buf, "write", 5) == 0) {
1230		u32 address, value;
1231
1232		cnt = sscanf(&cmd_buf[5], "%i %i", &address, &value);
1233		if (cnt != 2) {
1234			dev_info(&pf->pdev->dev, "write <reg> <value>\n");
1235			goto command_write_done;
1236		}
1237
1238		/* check the range on address */
1239		if (address > (pf->ioremap_len - sizeof(u32))) {
1240			dev_info(&pf->pdev->dev, "write reg address 0x%08x too large, max=0x%08lx\n",
1241				 address, (unsigned long int)(pf->ioremap_len - sizeof(u32)));
1242			goto command_write_done;
1243		}
1244		wr32(&pf->hw, address, value);
1245		value = rd32(&pf->hw, address);
1246		dev_info(&pf->pdev->dev, "write: 0x%08x = 0x%08x\n",
1247			 address, value);
1248	} else if (strncmp(cmd_buf, "clear_stats", 11) == 0) {
1249		if (strncmp(&cmd_buf[12], "vsi", 3) == 0) {
1250			cnt = sscanf(&cmd_buf[15], "%i", &vsi_seid);
1251			if (cnt == 0) {
1252				int i;
1253
1254				for (i = 0; i < pf->num_alloc_vsi; i++)
1255					i40e_vsi_reset_stats(pf->vsi[i]);
1256				dev_info(&pf->pdev->dev, "vsi clear stats called for all vsi's\n");
1257			} else if (cnt == 1) {
1258				vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1259				if (!vsi) {
1260					dev_info(&pf->pdev->dev,
1261						 "clear_stats vsi: bad vsi %d\n",
1262						 vsi_seid);
1263					goto command_write_done;
1264				}
1265				i40e_vsi_reset_stats(vsi);
1266				dev_info(&pf->pdev->dev,
1267					 "vsi clear stats called for vsi %d\n",
1268					 vsi_seid);
1269			} else {
1270				dev_info(&pf->pdev->dev, "clear_stats vsi [seid]\n");
1271			}
1272		} else if (strncmp(&cmd_buf[12], "port", 4) == 0) {
1273			if (pf->hw.partition_id == 1) {
1274				i40e_pf_reset_stats(pf);
1275				dev_info(&pf->pdev->dev, "port stats cleared\n");
1276			} else {
1277				dev_info(&pf->pdev->dev, "clear port stats not allowed on this port partition\n");
1278			}
1279		} else {
1280			dev_info(&pf->pdev->dev, "clear_stats vsi [seid] or clear_stats port\n");
1281		}
1282	} else if (strncmp(cmd_buf, "send aq_cmd", 11) == 0) {
1283		struct i40e_aq_desc *desc;
1284		int ret;
1285
1286		desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1287		if (!desc)
1288			goto command_write_done;
1289		cnt = sscanf(&cmd_buf[11],
1290			     "%hi %hi %hi %hi %i %i %i %i %i %i",
1291			     &desc->flags,
1292			     &desc->opcode, &desc->datalen, &desc->retval,
1293			     &desc->cookie_high, &desc->cookie_low,
1294			     &desc->params.internal.param0,
1295			     &desc->params.internal.param1,
1296			     &desc->params.internal.param2,
1297			     &desc->params.internal.param3);
1298		if (cnt != 10) {
1299			dev_info(&pf->pdev->dev,
1300				 "send aq_cmd: bad command string, cnt=%d\n",
1301				 cnt);
1302			kfree(desc);
1303			desc = NULL;
1304			goto command_write_done;
1305		}
1306		ret = i40e_asq_send_command(&pf->hw, desc, NULL, 0, NULL);
1307		if (!ret) {
1308			dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1309		} else if (ret == -EIO) {
1310			dev_info(&pf->pdev->dev,
1311				 "AQ command send failed Opcode %x AQ Error: %d\n",
1312				 desc->opcode, pf->hw.aq.asq_last_status);
1313		} else {
1314			dev_info(&pf->pdev->dev,
1315				 "AQ command send failed Opcode %x Status: %d\n",
1316				 desc->opcode, ret);
1317		}
1318		dev_info(&pf->pdev->dev,
1319			 "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1320			 desc->flags, desc->opcode, desc->datalen, desc->retval,
1321			 desc->cookie_high, desc->cookie_low,
1322			 desc->params.internal.param0,
1323			 desc->params.internal.param1,
1324			 desc->params.internal.param2,
1325			 desc->params.internal.param3);
1326		kfree(desc);
1327		desc = NULL;
1328	} else if (strncmp(cmd_buf, "send indirect aq_cmd", 20) == 0) {
1329		struct i40e_aq_desc *desc;
1330		u16 buffer_len;
1331		u8 *buff;
1332		int ret;
1333
1334		desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
1335		if (!desc)
1336			goto command_write_done;
1337		cnt = sscanf(&cmd_buf[20],
1338			     "%hi %hi %hi %hi %i %i %i %i %i %i %hi",
1339			     &desc->flags,
1340			     &desc->opcode, &desc->datalen, &desc->retval,
1341			     &desc->cookie_high, &desc->cookie_low,
1342			     &desc->params.internal.param0,
1343			     &desc->params.internal.param1,
1344			     &desc->params.internal.param2,
1345			     &desc->params.internal.param3,
1346			     &buffer_len);
1347		if (cnt != 11) {
1348			dev_info(&pf->pdev->dev,
1349				 "send indirect aq_cmd: bad command string, cnt=%d\n",
1350				 cnt);
1351			kfree(desc);
1352			desc = NULL;
1353			goto command_write_done;
1354		}
1355		/* Just stub a buffer big enough in case user messed up */
1356		if (buffer_len == 0)
1357			buffer_len = 1280;
1358
1359		buff = kzalloc(buffer_len, GFP_KERNEL);
1360		if (!buff) {
1361			kfree(desc);
1362			desc = NULL;
1363			goto command_write_done;
1364		}
1365		desc->flags |= cpu_to_le16((u16)I40E_AQ_FLAG_BUF);
1366		ret = i40e_asq_send_command(&pf->hw, desc, buff,
1367					    buffer_len, NULL);
1368		if (!ret) {
1369			dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
1370		} else if (ret == -EIO) {
1371			dev_info(&pf->pdev->dev,
1372				 "AQ command send failed Opcode %x AQ Error: %d\n",
1373				 desc->opcode, pf->hw.aq.asq_last_status);
1374		} else {
1375			dev_info(&pf->pdev->dev,
1376				 "AQ command send failed Opcode %x Status: %d\n",
1377				 desc->opcode, ret);
1378		}
1379		dev_info(&pf->pdev->dev,
1380			 "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
1381			 desc->flags, desc->opcode, desc->datalen, desc->retval,
1382			 desc->cookie_high, desc->cookie_low,
1383			 desc->params.internal.param0,
1384			 desc->params.internal.param1,
1385			 desc->params.internal.param2,
1386			 desc->params.internal.param3);
1387		print_hex_dump(KERN_INFO, "AQ buffer WB: ",
1388			       DUMP_PREFIX_OFFSET, 16, 1,
1389			       buff, buffer_len, true);
1390		kfree(buff);
1391		buff = NULL;
1392		kfree(desc);
1393		desc = NULL;
1394	} else if (strncmp(cmd_buf, "fd current cnt", 14) == 0) {
1395		dev_info(&pf->pdev->dev, "FD current total filter count for this interface: %d\n",
1396			 i40e_get_current_fd_count(pf));
1397	} else if (strncmp(cmd_buf, "lldp", 4) == 0) {
1398		if (strncmp(&cmd_buf[5], "stop", 4) == 0) {
1399			int ret;
1400
1401			ret = i40e_aq_stop_lldp(&pf->hw, false, false, NULL);
1402			if (ret) {
1403				dev_info(&pf->pdev->dev,
1404					 "Stop LLDP AQ command failed =0x%x\n",
1405					 pf->hw.aq.asq_last_status);
1406				goto command_write_done;
1407			}
1408			ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1409						pf->hw.mac.addr,
1410						ETH_P_LLDP, 0,
1411						pf->vsi[pf->lan_vsi]->seid,
1412						0, true, NULL, NULL);
1413			if (ret) {
1414				dev_info(&pf->pdev->dev,
1415					"%s: Add Control Packet Filter AQ command failed =0x%x\n",
1416					__func__, pf->hw.aq.asq_last_status);
1417				goto command_write_done;
1418			}
1419#ifdef CONFIG_I40E_DCB
1420			pf->dcbx_cap = DCB_CAP_DCBX_HOST |
1421				       DCB_CAP_DCBX_VER_IEEE;
1422#endif /* CONFIG_I40E_DCB */
1423		} else if (strncmp(&cmd_buf[5], "start", 5) == 0) {
1424			int ret;
1425
1426			ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
1427						pf->hw.mac.addr,
1428						ETH_P_LLDP, 0,
1429						pf->vsi[pf->lan_vsi]->seid,
1430						0, false, NULL, NULL);
1431			if (ret) {
1432				dev_info(&pf->pdev->dev,
1433					"%s: Remove Control Packet Filter AQ command failed =0x%x\n",
1434					__func__, pf->hw.aq.asq_last_status);
1435				/* Continue and start FW LLDP anyways */
1436			}
1437
1438			ret = i40e_aq_start_lldp(&pf->hw, false, NULL);
1439			if (ret) {
1440				dev_info(&pf->pdev->dev,
1441					 "Start LLDP AQ command failed =0x%x\n",
1442					 pf->hw.aq.asq_last_status);
1443				goto command_write_done;
1444			}
1445#ifdef CONFIG_I40E_DCB
1446			pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED |
1447				       DCB_CAP_DCBX_VER_IEEE;
1448#endif /* CONFIG_I40E_DCB */
1449		} else if (strncmp(&cmd_buf[5],
1450			   "get local", 9) == 0) {
1451			u16 llen, rlen;
1452			int ret;
1453			u8 *buff;
1454
1455			buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1456			if (!buff)
1457				goto command_write_done;
1458
1459			ret = i40e_aq_get_lldp_mib(&pf->hw, 0,
1460						   I40E_AQ_LLDP_MIB_LOCAL,
1461						   buff, I40E_LLDPDU_SIZE,
1462						   &llen, &rlen, NULL);
1463			if (ret) {
1464				dev_info(&pf->pdev->dev,
1465					 "Get LLDP MIB (local) AQ command failed =0x%x\n",
1466					 pf->hw.aq.asq_last_status);
1467				kfree(buff);
1468				buff = NULL;
1469				goto command_write_done;
1470			}
1471			dev_info(&pf->pdev->dev, "LLDP MIB (local)\n");
1472			print_hex_dump(KERN_INFO, "LLDP MIB (local): ",
1473				       DUMP_PREFIX_OFFSET, 16, 1,
1474				       buff, I40E_LLDPDU_SIZE, true);
1475			kfree(buff);
1476			buff = NULL;
1477		} else if (strncmp(&cmd_buf[5], "get remote", 10) == 0) {
1478			u16 llen, rlen;
1479			int ret;
1480			u8 *buff;
1481
1482			buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
1483			if (!buff)
1484				goto command_write_done;
1485
1486			ret = i40e_aq_get_lldp_mib(&pf->hw,
1487					I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE,
1488					I40E_AQ_LLDP_MIB_REMOTE,
1489					buff, I40E_LLDPDU_SIZE,
1490					&llen, &rlen, NULL);
1491			if (ret) {
1492				dev_info(&pf->pdev->dev,
1493					 "Get LLDP MIB (remote) AQ command failed =0x%x\n",
1494					 pf->hw.aq.asq_last_status);
1495				kfree(buff);
1496				buff = NULL;
1497				goto command_write_done;
1498			}
1499			dev_info(&pf->pdev->dev, "LLDP MIB (remote)\n");
1500			print_hex_dump(KERN_INFO, "LLDP MIB (remote): ",
1501				       DUMP_PREFIX_OFFSET, 16, 1,
1502				       buff, I40E_LLDPDU_SIZE, true);
1503			kfree(buff);
1504			buff = NULL;
1505		} else if (strncmp(&cmd_buf[5], "event on", 8) == 0) {
1506			int ret;
1507
1508			ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1509								true, NULL);
1510			if (ret) {
1511				dev_info(&pf->pdev->dev,
1512					 "Config LLDP MIB Change Event (on) AQ command failed =0x%x\n",
1513					 pf->hw.aq.asq_last_status);
1514				goto command_write_done;
1515			}
1516		} else if (strncmp(&cmd_buf[5], "event off", 9) == 0) {
1517			int ret;
1518
1519			ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
1520								false, NULL);
1521			if (ret) {
1522				dev_info(&pf->pdev->dev,
1523					 "Config LLDP MIB Change Event (off) AQ command failed =0x%x\n",
1524					 pf->hw.aq.asq_last_status);
1525				goto command_write_done;
1526			}
1527		}
1528	} else if (strncmp(cmd_buf, "nvm read", 8) == 0) {
1529		u16 buffer_len, bytes;
1530		u16 module;
1531		u32 offset;
1532		u16 *buff;
1533		int ret;
1534
1535		cnt = sscanf(&cmd_buf[8], "%hx %x %hx",
1536			     &module, &offset, &buffer_len);
1537		if (cnt == 0) {
1538			module = 0;
1539			offset = 0;
1540			buffer_len = 0;
1541		} else if (cnt == 1) {
1542			offset = 0;
1543			buffer_len = 0;
1544		} else if (cnt == 2) {
1545			buffer_len = 0;
1546		} else if (cnt > 3) {
1547			dev_info(&pf->pdev->dev,
1548				 "nvm read: bad command string, cnt=%d\n", cnt);
1549			goto command_write_done;
1550		}
1551
1552		/* set the max length */
1553		buffer_len = min_t(u16, buffer_len, I40E_MAX_AQ_BUF_SIZE/2);
1554
1555		bytes = 2 * buffer_len;
1556
1557		/* read at least 1k bytes, no more than 4kB */
1558		bytes = clamp(bytes, (u16)1024, (u16)I40E_MAX_AQ_BUF_SIZE);
1559		buff = kzalloc(bytes, GFP_KERNEL);
1560		if (!buff)
1561			goto command_write_done;
1562
1563		ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ);
1564		if (ret) {
1565			dev_info(&pf->pdev->dev,
1566				 "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1567				 ret, pf->hw.aq.asq_last_status);
1568			kfree(buff);
1569			goto command_write_done;
1570		}
1571
1572		ret = i40e_aq_read_nvm(&pf->hw, module, (2 * offset),
1573				       bytes, (u8 *)buff, true, NULL);
1574		i40e_release_nvm(&pf->hw);
1575		if (ret) {
1576			dev_info(&pf->pdev->dev,
1577				 "Read NVM AQ failed err=%d status=0x%x\n",
1578				 ret, pf->hw.aq.asq_last_status);
1579		} else {
1580			dev_info(&pf->pdev->dev,
1581				 "Read NVM module=0x%x offset=0x%x words=%d\n",
1582				 module, offset, buffer_len);
1583			if (bytes)
1584				print_hex_dump(KERN_INFO, "NVM Dump: ",
1585					DUMP_PREFIX_OFFSET, 16, 2,
1586					buff, bytes, true);
1587		}
1588		kfree(buff);
1589		buff = NULL;
1590	} else {
1591		dev_info(&pf->pdev->dev, "unknown command '%s'\n", cmd_buf);
1592		dev_info(&pf->pdev->dev, "available commands\n");
1593		dev_info(&pf->pdev->dev, "  add vsi [relay_seid]\n");
1594		dev_info(&pf->pdev->dev, "  del vsi [vsi_seid]\n");
1595		dev_info(&pf->pdev->dev, "  add relay <uplink_seid> <vsi_seid>\n");
1596		dev_info(&pf->pdev->dev, "  del relay <relay_seid>\n");
1597		dev_info(&pf->pdev->dev, "  add pvid <vsi_seid> <vid>\n");
1598		dev_info(&pf->pdev->dev, "  del pvid <vsi_seid>\n");
1599		dev_info(&pf->pdev->dev, "  dump switch\n");
1600		dev_info(&pf->pdev->dev, "  dump vsi [seid]\n");
1601		dev_info(&pf->pdev->dev, "  dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
1602		dev_info(&pf->pdev->dev, "  dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
1603		dev_info(&pf->pdev->dev, "  dump desc xdp <vsi_seid> <ring_id> [<desc_n>]\n");
1604		dev_info(&pf->pdev->dev, "  dump desc aq\n");
1605		dev_info(&pf->pdev->dev, "  dump reset stats\n");
1606		dev_info(&pf->pdev->dev, "  dump debug fwdata <cluster_id> <table_id> <index>\n");
1607		dev_info(&pf->pdev->dev, "  read <reg>\n");
1608		dev_info(&pf->pdev->dev, "  write <reg> <value>\n");
1609		dev_info(&pf->pdev->dev, "  clear_stats vsi [seid]\n");
1610		dev_info(&pf->pdev->dev, "  clear_stats port\n");
1611		dev_info(&pf->pdev->dev, "  pfr\n");
1612		dev_info(&pf->pdev->dev, "  corer\n");
1613		dev_info(&pf->pdev->dev, "  globr\n");
1614		dev_info(&pf->pdev->dev, "  send aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3>\n");
1615		dev_info(&pf->pdev->dev, "  send indirect aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3> <buffer_len>\n");
1616		dev_info(&pf->pdev->dev, "  fd current cnt");
1617		dev_info(&pf->pdev->dev, "  lldp start\n");
1618		dev_info(&pf->pdev->dev, "  lldp stop\n");
1619		dev_info(&pf->pdev->dev, "  lldp get local\n");
1620		dev_info(&pf->pdev->dev, "  lldp get remote\n");
1621		dev_info(&pf->pdev->dev, "  lldp event on\n");
1622		dev_info(&pf->pdev->dev, "  lldp event off\n");
1623		dev_info(&pf->pdev->dev, "  nvm read [module] [word_offset] [word_count]\n");
1624	}
1625
1626command_write_done:
1627	kfree(cmd_buf);
1628	cmd_buf = NULL;
1629	return count;
1630}
1631
1632static const struct file_operations i40e_dbg_command_fops = {
1633	.owner = THIS_MODULE,
1634	.open =  simple_open,
1635	.read =  i40e_dbg_command_read,
1636	.write = i40e_dbg_command_write,
1637};
1638
1639/**************************************************************
1640 * netdev_ops
1641 * The netdev_ops entry in debugfs is for giving the driver commands
1642 * to be executed from the netdev operations.
1643 **************************************************************/
1644static char i40e_dbg_netdev_ops_buf[256] = "";
1645
1646/**
1647 * i40e_dbg_netdev_ops_read - read for netdev_ops datum
1648 * @filp: the opened file
1649 * @buffer: where to write the data for the user to read
1650 * @count: the size of the user's buffer
1651 * @ppos: file position offset
1652 **/
1653static ssize_t i40e_dbg_netdev_ops_read(struct file *filp, char __user *buffer,
1654					size_t count, loff_t *ppos)
1655{
1656	struct i40e_pf *pf = filp->private_data;
1657	int bytes_not_copied;
1658	int buf_size = 256;
1659	char *buf;
1660	int len;
1661
1662	/* don't allow partal reads */
1663	if (*ppos != 0)
1664		return 0;
1665	if (count < buf_size)
1666		return -ENOSPC;
1667
1668	buf = kzalloc(buf_size, GFP_KERNEL);
1669	if (!buf)
1670		return -ENOSPC;
1671
1672	len = snprintf(buf, buf_size, "%s: %s\n",
1673		       pf->vsi[pf->lan_vsi]->netdev->name,
1674		       i40e_dbg_netdev_ops_buf);
1675
1676	bytes_not_copied = copy_to_user(buffer, buf, len);
1677	kfree(buf);
1678
1679	if (bytes_not_copied)
1680		return -EFAULT;
1681
1682	*ppos = len;
1683	return len;
1684}
1685
1686/**
1687 * i40e_dbg_netdev_ops_write - write into netdev_ops datum
1688 * @filp: the opened file
1689 * @buffer: where to find the user's data
1690 * @count: the length of the user's data
1691 * @ppos: file position offset
1692 **/
1693static ssize_t i40e_dbg_netdev_ops_write(struct file *filp,
1694					 const char __user *buffer,
1695					 size_t count, loff_t *ppos)
1696{
1697	struct i40e_pf *pf = filp->private_data;
1698	int bytes_not_copied;
1699	struct i40e_vsi *vsi;
1700	char *buf_tmp;
1701	int vsi_seid;
1702	int i, cnt;
1703
1704	/* don't allow partial writes */
1705	if (*ppos != 0)
1706		return 0;
1707	if (count >= sizeof(i40e_dbg_netdev_ops_buf))
1708		return -ENOSPC;
1709
1710	memset(i40e_dbg_netdev_ops_buf, 0, sizeof(i40e_dbg_netdev_ops_buf));
1711	bytes_not_copied = copy_from_user(i40e_dbg_netdev_ops_buf,
1712					  buffer, count);
1713	if (bytes_not_copied)
1714		return -EFAULT;
1715	i40e_dbg_netdev_ops_buf[count] = '\0';
1716
1717	buf_tmp = strchr(i40e_dbg_netdev_ops_buf, '\n');
1718	if (buf_tmp) {
1719		*buf_tmp = '\0';
1720		count = buf_tmp - i40e_dbg_netdev_ops_buf + 1;
1721	}
1722
1723	if (strncmp(i40e_dbg_netdev_ops_buf, "change_mtu", 10) == 0) {
1724		int mtu;
1725
1726		cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i %i",
1727			     &vsi_seid, &mtu);
1728		if (cnt != 2) {
1729			dev_info(&pf->pdev->dev, "change_mtu <vsi_seid> <mtu>\n");
1730			goto netdev_ops_write_done;
1731		}
1732		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1733		if (!vsi) {
1734			dev_info(&pf->pdev->dev,
1735				 "change_mtu: VSI %d not found\n", vsi_seid);
1736		} else if (!vsi->netdev) {
1737			dev_info(&pf->pdev->dev, "change_mtu: no netdev for VSI %d\n",
1738				 vsi_seid);
1739		} else if (rtnl_trylock()) {
1740			vsi->netdev->netdev_ops->ndo_change_mtu(vsi->netdev,
1741								mtu);
1742			rtnl_unlock();
1743			dev_info(&pf->pdev->dev, "change_mtu called\n");
1744		} else {
1745			dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1746		}
1747
1748	} else if (strncmp(i40e_dbg_netdev_ops_buf, "set_rx_mode", 11) == 0) {
1749		cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
1750		if (cnt != 1) {
1751			dev_info(&pf->pdev->dev, "set_rx_mode <vsi_seid>\n");
1752			goto netdev_ops_write_done;
1753		}
1754		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1755		if (!vsi) {
1756			dev_info(&pf->pdev->dev,
1757				 "set_rx_mode: VSI %d not found\n", vsi_seid);
1758		} else if (!vsi->netdev) {
1759			dev_info(&pf->pdev->dev, "set_rx_mode: no netdev for VSI %d\n",
1760				 vsi_seid);
1761		} else if (rtnl_trylock()) {
1762			vsi->netdev->netdev_ops->ndo_set_rx_mode(vsi->netdev);
1763			rtnl_unlock();
1764			dev_info(&pf->pdev->dev, "set_rx_mode called\n");
1765		} else {
1766			dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
1767		}
1768
1769	} else if (strncmp(i40e_dbg_netdev_ops_buf, "napi", 4) == 0) {
1770		cnt = sscanf(&i40e_dbg_netdev_ops_buf[4], "%i", &vsi_seid);
1771		if (cnt != 1) {
1772			dev_info(&pf->pdev->dev, "napi <vsi_seid>\n");
1773			goto netdev_ops_write_done;
1774		}
1775		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
1776		if (!vsi) {
1777			dev_info(&pf->pdev->dev, "napi: VSI %d not found\n",
1778				 vsi_seid);
1779		} else if (!vsi->netdev) {
1780			dev_info(&pf->pdev->dev, "napi: no netdev for VSI %d\n",
1781				 vsi_seid);
1782		} else {
1783			for (i = 0; i < vsi->num_q_vectors; i++)
1784				napi_schedule(&vsi->q_vectors[i]->napi);
1785			dev_info(&pf->pdev->dev, "napi called\n");
1786		}
1787	} else {
1788		dev_info(&pf->pdev->dev, "unknown command '%s'\n",
1789			 i40e_dbg_netdev_ops_buf);
1790		dev_info(&pf->pdev->dev, "available commands\n");
1791		dev_info(&pf->pdev->dev, "  change_mtu <vsi_seid> <mtu>\n");
1792		dev_info(&pf->pdev->dev, "  set_rx_mode <vsi_seid>\n");
1793		dev_info(&pf->pdev->dev, "  napi <vsi_seid>\n");
1794	}
1795netdev_ops_write_done:
1796	return count;
1797}
1798
1799static const struct file_operations i40e_dbg_netdev_ops_fops = {
1800	.owner = THIS_MODULE,
1801	.open = simple_open,
1802	.read = i40e_dbg_netdev_ops_read,
1803	.write = i40e_dbg_netdev_ops_write,
1804};
1805
1806/**
1807 * i40e_dbg_pf_init - setup the debugfs directory for the PF
1808 * @pf: the PF that is starting up
1809 **/
1810void i40e_dbg_pf_init(struct i40e_pf *pf)
1811{
1812	const char *name = pci_name(pf->pdev);
1813
1814	pf->i40e_dbg_pf = debugfs_create_dir(name, i40e_dbg_root);
1815
1816	debugfs_create_file("command", 0600, pf->i40e_dbg_pf, pf,
1817			    &i40e_dbg_command_fops);
1818
1819	debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf, pf,
1820			    &i40e_dbg_netdev_ops_fops);
1821}
1822
1823/**
1824 * i40e_dbg_pf_exit - clear out the PF's debugfs entries
1825 * @pf: the PF that is stopping
1826 **/
1827void i40e_dbg_pf_exit(struct i40e_pf *pf)
1828{
1829	debugfs_remove_recursive(pf->i40e_dbg_pf);
1830	pf->i40e_dbg_pf = NULL;
1831}
1832
1833/**
1834 * i40e_dbg_init - start up debugfs for the driver
1835 **/
1836void i40e_dbg_init(void)
1837{
1838	i40e_dbg_root = debugfs_create_dir(i40e_driver_name, NULL);
1839	if (IS_ERR(i40e_dbg_root))
1840		pr_info("init of debugfs failed\n");
1841}
1842
1843/**
1844 * i40e_dbg_exit - clean out the driver's debugfs entries
1845 **/
1846void i40e_dbg_exit(void)
1847{
1848	debugfs_remove_recursive(i40e_dbg_root);
1849	i40e_dbg_root = NULL;
1850}
1851
1852#endif /* CONFIG_DEBUG_FS */