1 /*******************************************************************************
3 Intel 82599 Virtual Function driver
4 Copyright(c) 1999 - 2012 Intel Corporation.
6 This program is free software; you can redistribute it and/or modify it
7 under the terms and conditions of the GNU General Public License,
8 version 2, as published by the Free Software Foundation.
10 This program is distributed in the hope it will be useful, but WITHOUT
11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 You should have received a copy of the GNU General Public License along with
16 this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
19 The full GNU General Public License is included in this distribution in
20 the file called "COPYING".
23 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
24 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
26 *******************************************************************************/
28 /* ethtool support for ixgbevf */
30 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
32 #include <linux/types.h>
33 #include <linux/module.h>
34 #include <linux/slab.h>
35 #include <linux/pci.h>
36 #include <linux/netdevice.h>
37 #include <linux/ethtool.h>
38 #include <linux/vmalloc.h>
39 #include <linux/if_vlan.h>
40 #include <linux/uaccess.h>
44 #define IXGBE_ALL_RAR_ENTRIES 16
47 char stat_string[ETH_GSTRING_LEN];
51 int saved_reset_offset;
54 #define IXGBEVF_STAT(m, b, r) sizeof(((struct ixgbevf_adapter *)0)->m), \
55 offsetof(struct ixgbevf_adapter, m), \
56 offsetof(struct ixgbevf_adapter, b), \
57 offsetof(struct ixgbevf_adapter, r)
59 static const struct ixgbe_stats ixgbe_gstrings_stats[] = {
60 {"rx_packets", IXGBEVF_STAT(stats.vfgprc, stats.base_vfgprc,
61 stats.saved_reset_vfgprc)},
62 {"tx_packets", IXGBEVF_STAT(stats.vfgptc, stats.base_vfgptc,
63 stats.saved_reset_vfgptc)},
64 {"rx_bytes", IXGBEVF_STAT(stats.vfgorc, stats.base_vfgorc,
65 stats.saved_reset_vfgorc)},
66 {"tx_bytes", IXGBEVF_STAT(stats.vfgotc, stats.base_vfgotc,
67 stats.saved_reset_vfgotc)},
68 {"tx_busy", IXGBEVF_STAT(tx_busy, zero_base, zero_base)},
69 {"multicast", IXGBEVF_STAT(stats.vfmprc, stats.base_vfmprc,
70 stats.saved_reset_vfmprc)},
71 {"rx_csum_offload_good", IXGBEVF_STAT(hw_csum_rx_good, zero_base,
73 {"rx_csum_offload_errors", IXGBEVF_STAT(hw_csum_rx_error, zero_base,
75 {"tx_csum_offload_ctxt", IXGBEVF_STAT(hw_csum_tx_good, zero_base,
79 #define IXGBE_QUEUE_STATS_LEN 0
80 #define IXGBE_GLOBAL_STATS_LEN ARRAY_SIZE(ixgbe_gstrings_stats)
82 #define IXGBEVF_STATS_LEN (IXGBE_GLOBAL_STATS_LEN + IXGBE_QUEUE_STATS_LEN)
83 static const char ixgbe_gstrings_test[][ETH_GSTRING_LEN] = {
84 "Register test (offline)",
85 "Link test (on/offline)"
87 #define IXGBE_TEST_LEN (sizeof(ixgbe_gstrings_test) / ETH_GSTRING_LEN)
89 static int ixgbevf_get_settings(struct net_device *netdev,
90 struct ethtool_cmd *ecmd)
92 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
93 struct ixgbe_hw *hw = &adapter->hw;
97 ecmd->supported = SUPPORTED_10000baseT_Full;
98 ecmd->autoneg = AUTONEG_DISABLE;
99 ecmd->transceiver = XCVR_DUMMY1;
102 hw->mac.get_link_status = 1;
103 hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
106 __u32 speed = SPEED_10000;
107 switch (link_speed) {
108 case IXGBE_LINK_SPEED_10GB_FULL:
111 case IXGBE_LINK_SPEED_1GB_FULL:
114 case IXGBE_LINK_SPEED_100_FULL:
119 ethtool_cmd_speed_set(ecmd, speed);
120 ecmd->duplex = DUPLEX_FULL;
122 ethtool_cmd_speed_set(ecmd, -1);
129 static u32 ixgbevf_get_msglevel(struct net_device *netdev)
131 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
132 return adapter->msg_enable;
135 static void ixgbevf_set_msglevel(struct net_device *netdev, u32 data)
137 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
138 adapter->msg_enable = data;
141 #define IXGBE_GET_STAT(_A_, _R_) (_A_->stats._R_)
143 static int ixgbevf_get_regs_len(struct net_device *netdev)
145 #define IXGBE_REGS_LEN 45
146 return IXGBE_REGS_LEN * sizeof(u32);
149 static void ixgbevf_get_regs(struct net_device *netdev,
150 struct ethtool_regs *regs,
153 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
154 struct ixgbe_hw *hw = &adapter->hw;
156 u32 regs_len = ixgbevf_get_regs_len(netdev);
159 memset(p, 0, regs_len);
161 regs->version = (1 << 24) | hw->revision_id << 16 | hw->device_id;
163 /* General Registers */
164 regs_buff[0] = IXGBE_READ_REG(hw, IXGBE_VFCTRL);
165 regs_buff[1] = IXGBE_READ_REG(hw, IXGBE_VFSTATUS);
166 regs_buff[2] = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
167 regs_buff[3] = IXGBE_READ_REG(hw, IXGBE_VFRXMEMWRAP);
168 regs_buff[4] = IXGBE_READ_REG(hw, IXGBE_VFFRTIMER);
171 /* don't read EICR because it can clear interrupt causes, instead
172 * read EICS which is a shadow but doesn't clear EICR */
173 regs_buff[5] = IXGBE_READ_REG(hw, IXGBE_VTEICS);
174 regs_buff[6] = IXGBE_READ_REG(hw, IXGBE_VTEICS);
175 regs_buff[7] = IXGBE_READ_REG(hw, IXGBE_VTEIMS);
176 regs_buff[8] = IXGBE_READ_REG(hw, IXGBE_VTEIMC);
177 regs_buff[9] = IXGBE_READ_REG(hw, IXGBE_VTEIAC);
178 regs_buff[10] = IXGBE_READ_REG(hw, IXGBE_VTEIAM);
179 regs_buff[11] = IXGBE_READ_REG(hw, IXGBE_VTEITR(0));
180 regs_buff[12] = IXGBE_READ_REG(hw, IXGBE_VTIVAR(0));
181 regs_buff[13] = IXGBE_READ_REG(hw, IXGBE_VTIVAR_MISC);
184 for (i = 0; i < 2; i++)
185 regs_buff[14 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDBAL(i));
186 for (i = 0; i < 2; i++)
187 regs_buff[16 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDBAH(i));
188 for (i = 0; i < 2; i++)
189 regs_buff[18 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDLEN(i));
190 for (i = 0; i < 2; i++)
191 regs_buff[20 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDH(i));
192 for (i = 0; i < 2; i++)
193 regs_buff[22 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDT(i));
194 for (i = 0; i < 2; i++)
195 regs_buff[24 + i] = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i));
196 for (i = 0; i < 2; i++)
197 regs_buff[26 + i] = IXGBE_READ_REG(hw, IXGBE_VFSRRCTL(i));
200 regs_buff[28] = IXGBE_READ_REG(hw, IXGBE_VFPSRTYPE);
203 for (i = 0; i < 2; i++)
204 regs_buff[29 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDBAL(i));
205 for (i = 0; i < 2; i++)
206 regs_buff[31 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDBAH(i));
207 for (i = 0; i < 2; i++)
208 regs_buff[33 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDLEN(i));
209 for (i = 0; i < 2; i++)
210 regs_buff[35 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDH(i));
211 for (i = 0; i < 2; i++)
212 regs_buff[37 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDT(i));
213 for (i = 0; i < 2; i++)
214 regs_buff[39 + i] = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(i));
215 for (i = 0; i < 2; i++)
216 regs_buff[41 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDWBAL(i));
217 for (i = 0; i < 2; i++)
218 regs_buff[43 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDWBAH(i));
221 static void ixgbevf_get_drvinfo(struct net_device *netdev,
222 struct ethtool_drvinfo *drvinfo)
224 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
226 strlcpy(drvinfo->driver, ixgbevf_driver_name, sizeof(drvinfo->driver));
227 strlcpy(drvinfo->version, ixgbevf_driver_version,
228 sizeof(drvinfo->version));
229 strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
230 sizeof(drvinfo->bus_info));
233 static void ixgbevf_get_ringparam(struct net_device *netdev,
234 struct ethtool_ringparam *ring)
236 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
238 ring->rx_max_pending = IXGBEVF_MAX_RXD;
239 ring->tx_max_pending = IXGBEVF_MAX_TXD;
240 ring->rx_pending = adapter->rx_ring_count;
241 ring->tx_pending = adapter->tx_ring_count;
244 static int ixgbevf_set_ringparam(struct net_device *netdev,
245 struct ethtool_ringparam *ring)
247 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
248 struct ixgbevf_ring *tx_ring = NULL, *rx_ring = NULL;
249 u32 new_rx_count, new_tx_count;
252 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
255 new_tx_count = max_t(u32, ring->tx_pending, IXGBEVF_MIN_TXD);
256 new_tx_count = min_t(u32, new_tx_count, IXGBEVF_MAX_TXD);
257 new_tx_count = ALIGN(new_tx_count, IXGBE_REQ_TX_DESCRIPTOR_MULTIPLE);
259 new_rx_count = max_t(u32, ring->rx_pending, IXGBEVF_MIN_RXD);
260 new_rx_count = min_t(u32, new_rx_count, IXGBEVF_MAX_RXD);
261 new_rx_count = ALIGN(new_rx_count, IXGBE_REQ_RX_DESCRIPTOR_MULTIPLE);
263 /* if nothing to do return success */
264 if ((new_tx_count == adapter->tx_ring_count) &&
265 (new_rx_count == adapter->rx_ring_count))
268 while (test_and_set_bit(__IXGBEVF_RESETTING, &adapter->state))
269 usleep_range(1000, 2000);
271 if (!netif_running(adapter->netdev)) {
272 for (i = 0; i < adapter->num_tx_queues; i++)
273 adapter->tx_ring[i].count = new_tx_count;
274 for (i = 0; i < adapter->num_rx_queues; i++)
275 adapter->rx_ring[i].count = new_rx_count;
276 adapter->tx_ring_count = new_tx_count;
277 adapter->rx_ring_count = new_rx_count;
281 if (new_tx_count != adapter->tx_ring_count) {
282 tx_ring = vmalloc(adapter->num_tx_queues * sizeof(*tx_ring));
288 for (i = 0; i < adapter->num_tx_queues; i++) {
289 /* clone ring and setup updated count */
290 tx_ring[i] = adapter->tx_ring[i];
291 tx_ring[i].count = new_tx_count;
292 err = ixgbevf_setup_tx_resources(adapter, &tx_ring[i]);
297 ixgbevf_free_tx_resources(adapter, &tx_ring[i]);
307 if (new_rx_count != adapter->rx_ring_count) {
308 rx_ring = vmalloc(adapter->num_rx_queues * sizeof(*rx_ring));
314 for (i = 0; i < adapter->num_rx_queues; i++) {
315 /* clone ring and setup updated count */
316 rx_ring[i] = adapter->rx_ring[i];
317 rx_ring[i].count = new_rx_count;
318 err = ixgbevf_setup_rx_resources(adapter, &rx_ring[i]);
323 ixgbevf_free_rx_resources(adapter, &rx_ring[i]);
333 /* bring interface down to prepare for update */
334 ixgbevf_down(adapter);
338 for (i = 0; i < adapter->num_tx_queues; i++) {
339 ixgbevf_free_tx_resources(adapter,
340 &adapter->tx_ring[i]);
341 adapter->tx_ring[i] = tx_ring[i];
343 adapter->tx_ring_count = new_tx_count;
351 for (i = 0; i < adapter->num_rx_queues; i++) {
352 ixgbevf_free_rx_resources(adapter,
353 &adapter->rx_ring[i]);
354 adapter->rx_ring[i] = rx_ring[i];
356 adapter->rx_ring_count = new_rx_count;
362 /* restore interface using new values */
366 /* free Tx resources if Rx error is encountered */
368 for (i = 0; i < adapter->num_tx_queues; i++)
369 ixgbevf_free_tx_resources(adapter, &tx_ring[i]);
373 clear_bit(__IXGBEVF_RESETTING, &adapter->state);
377 static int ixgbevf_get_sset_count(struct net_device *dev, int stringset)
381 return IXGBE_TEST_LEN;
383 return IXGBE_GLOBAL_STATS_LEN;
389 static void ixgbevf_get_ethtool_stats(struct net_device *netdev,
390 struct ethtool_stats *stats, u64 *data)
392 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
395 ixgbevf_update_stats(adapter);
396 for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) {
397 char *p = (char *)adapter +
398 ixgbe_gstrings_stats[i].stat_offset;
399 char *b = (char *)adapter +
400 ixgbe_gstrings_stats[i].base_stat_offset;
401 char *r = (char *)adapter +
402 ixgbe_gstrings_stats[i].saved_reset_offset;
403 data[i] = ((ixgbe_gstrings_stats[i].sizeof_stat ==
404 sizeof(u64)) ? *(u64 *)p : *(u32 *)p) -
405 ((ixgbe_gstrings_stats[i].sizeof_stat ==
406 sizeof(u64)) ? *(u64 *)b : *(u32 *)b) +
407 ((ixgbe_gstrings_stats[i].sizeof_stat ==
408 sizeof(u64)) ? *(u64 *)r : *(u32 *)r);
412 static void ixgbevf_get_strings(struct net_device *netdev, u32 stringset,
415 char *p = (char *)data;
420 memcpy(data, *ixgbe_gstrings_test,
421 IXGBE_TEST_LEN * ETH_GSTRING_LEN);
424 for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) {
425 memcpy(p, ixgbe_gstrings_stats[i].stat_string,
427 p += ETH_GSTRING_LEN;
433 static int ixgbevf_link_test(struct ixgbevf_adapter *adapter, u64 *data)
435 struct ixgbe_hw *hw = &adapter->hw;
440 hw->mac.ops.check_link(hw, &link_speed, &link_up, true);
447 /* ethtool register test data */
448 struct ixgbevf_reg_test {
456 /* In the hardware, registers are laid out either singly, in arrays
457 * spaced 0x40 bytes apart, or in contiguous tables. We assume
458 * most tests take place on arrays or single registers (handled
459 * as a single-element array) and special-case the tables.
460 * Table tests are always pattern tests.
462 * We also make provision for some required setup steps by specifying
463 * registers to be written without any read-back testing.
466 #define PATTERN_TEST 1
467 #define SET_READ_TEST 2
468 #define WRITE_NO_TEST 3
469 #define TABLE32_TEST 4
470 #define TABLE64_TEST_LO 5
471 #define TABLE64_TEST_HI 6
473 /* default VF register test */
474 static const struct ixgbevf_reg_test reg_test_vf[] = {
475 { IXGBE_VFRDBAL(0), 2, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFF80 },
476 { IXGBE_VFRDBAH(0), 2, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
477 { IXGBE_VFRDLEN(0), 2, PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
478 { IXGBE_VFRXDCTL(0), 2, WRITE_NO_TEST, 0, IXGBE_RXDCTL_ENABLE },
479 { IXGBE_VFRDT(0), 2, PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
480 { IXGBE_VFRXDCTL(0), 2, WRITE_NO_TEST, 0, 0 },
481 { IXGBE_VFTDBAL(0), 2, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
482 { IXGBE_VFTDBAH(0), 2, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
483 { IXGBE_VFTDLEN(0), 2, PATTERN_TEST, 0x000FFF80, 0x000FFF80 },
487 static const u32 register_test_patterns[] = {
488 0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF
491 #define REG_PATTERN_TEST(R, M, W) \
493 u32 pat, val, before; \
494 for (pat = 0; pat < ARRAY_SIZE(register_test_patterns); pat++) { \
495 before = readl(adapter->hw.hw_addr + R); \
496 writel((register_test_patterns[pat] & W), \
497 (adapter->hw.hw_addr + R)); \
498 val = readl(adapter->hw.hw_addr + R); \
499 if (val != (register_test_patterns[pat] & W & M)) { \
500 hw_dbg(&adapter->hw, \
501 "pattern test reg %04X failed: got " \
502 "0x%08X expected 0x%08X\n", \
503 R, val, (register_test_patterns[pat] & W & M)); \
505 writel(before, adapter->hw.hw_addr + R); \
508 writel(before, adapter->hw.hw_addr + R); \
512 #define REG_SET_AND_CHECK(R, M, W) \
515 before = readl(adapter->hw.hw_addr + R); \
516 writel((W & M), (adapter->hw.hw_addr + R)); \
517 val = readl(adapter->hw.hw_addr + R); \
518 if ((W & M) != (val & M)) { \
519 pr_err("set/check reg %04X test failed: got 0x%08X expected " \
520 "0x%08X\n", R, (val & M), (W & M)); \
522 writel(before, (adapter->hw.hw_addr + R)); \
525 writel(before, (adapter->hw.hw_addr + R)); \
528 static int ixgbevf_reg_test(struct ixgbevf_adapter *adapter, u64 *data)
530 const struct ixgbevf_reg_test *test;
536 * Perform the register test, looping through the test table
537 * until we either fail or reach the null entry.
540 for (i = 0; i < test->array_len; i++) {
541 switch (test->test_type) {
543 REG_PATTERN_TEST(test->reg + (i * 0x40),
548 REG_SET_AND_CHECK(test->reg + (i * 0x40),
554 (adapter->hw.hw_addr + test->reg)
558 REG_PATTERN_TEST(test->reg + (i * 4),
562 case TABLE64_TEST_LO:
563 REG_PATTERN_TEST(test->reg + (i * 8),
567 case TABLE64_TEST_HI:
568 REG_PATTERN_TEST((test->reg + 4) + (i * 8),
581 static void ixgbevf_diag_test(struct net_device *netdev,
582 struct ethtool_test *eth_test, u64 *data)
584 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
585 bool if_running = netif_running(netdev);
587 set_bit(__IXGBEVF_TESTING, &adapter->state);
588 if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
591 hw_dbg(&adapter->hw, "offline testing starting\n");
593 /* Link test performed before hardware reset so autoneg doesn't
594 * interfere with test result */
595 if (ixgbevf_link_test(adapter, &data[1]))
596 eth_test->flags |= ETH_TEST_FL_FAILED;
599 /* indicate we're in test mode */
602 ixgbevf_reset(adapter);
604 hw_dbg(&adapter->hw, "register testing starting\n");
605 if (ixgbevf_reg_test(adapter, &data[0]))
606 eth_test->flags |= ETH_TEST_FL_FAILED;
608 ixgbevf_reset(adapter);
610 clear_bit(__IXGBEVF_TESTING, &adapter->state);
614 hw_dbg(&adapter->hw, "online testing starting\n");
616 if (ixgbevf_link_test(adapter, &data[1]))
617 eth_test->flags |= ETH_TEST_FL_FAILED;
619 /* Online tests aren't run; pass by default */
622 clear_bit(__IXGBEVF_TESTING, &adapter->state);
624 msleep_interruptible(4 * 1000);
627 static int ixgbevf_nway_reset(struct net_device *netdev)
629 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
631 if (netif_running(netdev))
632 ixgbevf_reinit_locked(adapter);
637 static const struct ethtool_ops ixgbevf_ethtool_ops = {
638 .get_settings = ixgbevf_get_settings,
639 .get_drvinfo = ixgbevf_get_drvinfo,
640 .get_regs_len = ixgbevf_get_regs_len,
641 .get_regs = ixgbevf_get_regs,
642 .nway_reset = ixgbevf_nway_reset,
643 .get_link = ethtool_op_get_link,
644 .get_ringparam = ixgbevf_get_ringparam,
645 .set_ringparam = ixgbevf_set_ringparam,
646 .get_msglevel = ixgbevf_get_msglevel,
647 .set_msglevel = ixgbevf_set_msglevel,
648 .self_test = ixgbevf_diag_test,
649 .get_sset_count = ixgbevf_get_sset_count,
650 .get_strings = ixgbevf_get_strings,
651 .get_ethtool_stats = ixgbevf_get_ethtool_stats,
654 void ixgbevf_set_ethtool_ops(struct net_device *netdev)
656 SET_ETHTOOL_OPS(netdev, &ixgbevf_ethtool_ops);