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
48 char stat_string[ETH_GSTRING_LEN];
52 int saved_reset_offset;
55 #define IXGBEVF_STAT(m, b, r) sizeof(((struct ixgbevf_adapter *)0)->m), \
56 offsetof(struct ixgbevf_adapter, m), \
57 offsetof(struct ixgbevf_adapter, b), \
58 offsetof(struct ixgbevf_adapter, r)
60 static const struct ixgbe_stats ixgbe_gstrings_stats[] = {
61 {"rx_packets", IXGBEVF_STAT(stats.vfgprc, stats.base_vfgprc,
62 stats.saved_reset_vfgprc)},
63 {"tx_packets", IXGBEVF_STAT(stats.vfgptc, stats.base_vfgptc,
64 stats.saved_reset_vfgptc)},
65 {"rx_bytes", IXGBEVF_STAT(stats.vfgorc, stats.base_vfgorc,
66 stats.saved_reset_vfgorc)},
67 {"tx_bytes", IXGBEVF_STAT(stats.vfgotc, stats.base_vfgotc,
68 stats.saved_reset_vfgotc)},
69 {"tx_busy", IXGBEVF_STAT(tx_busy, zero_base, zero_base)},
70 {"multicast", IXGBEVF_STAT(stats.vfmprc, stats.base_vfmprc,
71 stats.saved_reset_vfmprc)},
72 {"rx_csum_offload_good", IXGBEVF_STAT(hw_csum_rx_good, zero_base,
74 {"rx_csum_offload_errors", IXGBEVF_STAT(hw_csum_rx_error, zero_base,
76 {"tx_csum_offload_ctxt", IXGBEVF_STAT(hw_csum_tx_good, zero_base,
78 {"rx_header_split", IXGBEVF_STAT(rx_hdr_split, zero_base, zero_base)},
81 #define IXGBE_QUEUE_STATS_LEN 0
82 #define IXGBE_GLOBAL_STATS_LEN ARRAY_SIZE(ixgbe_gstrings_stats)
84 #define IXGBEVF_STATS_LEN (IXGBE_GLOBAL_STATS_LEN + IXGBE_QUEUE_STATS_LEN)
85 #endif /* ETHTOOL_GSTATS */
87 static const char ixgbe_gstrings_test[][ETH_GSTRING_LEN] = {
88 "Register test (offline)",
89 "Link test (on/offline)"
91 #define IXGBE_TEST_LEN (sizeof(ixgbe_gstrings_test) / ETH_GSTRING_LEN)
92 #endif /* ETHTOOL_TEST */
94 static int ixgbevf_get_settings(struct net_device *netdev,
95 struct ethtool_cmd *ecmd)
97 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
98 struct ixgbe_hw *hw = &adapter->hw;
102 ecmd->supported = SUPPORTED_10000baseT_Full;
103 ecmd->autoneg = AUTONEG_DISABLE;
104 ecmd->transceiver = XCVR_DUMMY1;
107 hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
110 __u32 speed = SPEED_10000;
111 switch (link_speed) {
112 case IXGBE_LINK_SPEED_10GB_FULL:
115 case IXGBE_LINK_SPEED_1GB_FULL:
118 case IXGBE_LINK_SPEED_100_FULL:
123 ethtool_cmd_speed_set(ecmd, speed);
124 ecmd->duplex = DUPLEX_FULL;
126 ethtool_cmd_speed_set(ecmd, -1);
133 static u32 ixgbevf_get_msglevel(struct net_device *netdev)
135 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
136 return adapter->msg_enable;
139 static void ixgbevf_set_msglevel(struct net_device *netdev, u32 data)
141 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
142 adapter->msg_enable = data;
145 #define IXGBE_GET_STAT(_A_, _R_) (_A_->stats._R_)
147 static char *ixgbevf_reg_names[] = {
196 static int ixgbevf_get_regs_len(struct net_device *netdev)
198 return (ARRAY_SIZE(ixgbevf_reg_names)) * sizeof(u32);
201 static void ixgbevf_get_regs(struct net_device *netdev,
202 struct ethtool_regs *regs,
205 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
206 struct ixgbe_hw *hw = &adapter->hw;
208 u32 regs_len = ixgbevf_get_regs_len(netdev);
211 memset(p, 0, regs_len);
213 regs->version = (1 << 24) | hw->revision_id << 16 | hw->device_id;
215 /* General Registers */
216 regs_buff[0] = IXGBE_READ_REG(hw, IXGBE_VFCTRL);
217 regs_buff[1] = IXGBE_READ_REG(hw, IXGBE_VFSTATUS);
218 regs_buff[2] = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
219 regs_buff[3] = IXGBE_READ_REG(hw, IXGBE_VFRXMEMWRAP);
220 regs_buff[4] = IXGBE_READ_REG(hw, IXGBE_VFFRTIMER);
223 /* don't read EICR because it can clear interrupt causes, instead
224 * read EICS which is a shadow but doesn't clear EICR */
225 regs_buff[5] = IXGBE_READ_REG(hw, IXGBE_VTEICS);
226 regs_buff[6] = IXGBE_READ_REG(hw, IXGBE_VTEICS);
227 regs_buff[7] = IXGBE_READ_REG(hw, IXGBE_VTEIMS);
228 regs_buff[8] = IXGBE_READ_REG(hw, IXGBE_VTEIMC);
229 regs_buff[9] = IXGBE_READ_REG(hw, IXGBE_VTEIAC);
230 regs_buff[10] = IXGBE_READ_REG(hw, IXGBE_VTEIAM);
231 regs_buff[11] = IXGBE_READ_REG(hw, IXGBE_VTEITR(0));
232 regs_buff[12] = IXGBE_READ_REG(hw, IXGBE_VTIVAR(0));
233 regs_buff[13] = IXGBE_READ_REG(hw, IXGBE_VTIVAR_MISC);
236 for (i = 0; i < 2; i++)
237 regs_buff[14 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDBAL(i));
238 for (i = 0; i < 2; i++)
239 regs_buff[16 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDBAH(i));
240 for (i = 0; i < 2; i++)
241 regs_buff[18 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDLEN(i));
242 for (i = 0; i < 2; i++)
243 regs_buff[20 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDH(i));
244 for (i = 0; i < 2; i++)
245 regs_buff[22 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDT(i));
246 for (i = 0; i < 2; i++)
247 regs_buff[24 + i] = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i));
248 for (i = 0; i < 2; i++)
249 regs_buff[26 + i] = IXGBE_READ_REG(hw, IXGBE_VFSRRCTL(i));
252 regs_buff[28] = IXGBE_READ_REG(hw, IXGBE_VFPSRTYPE);
255 for (i = 0; i < 2; i++)
256 regs_buff[29 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDBAL(i));
257 for (i = 0; i < 2; i++)
258 regs_buff[31 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDBAH(i));
259 for (i = 0; i < 2; i++)
260 regs_buff[33 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDLEN(i));
261 for (i = 0; i < 2; i++)
262 regs_buff[35 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDH(i));
263 for (i = 0; i < 2; i++)
264 regs_buff[37 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDT(i));
265 for (i = 0; i < 2; i++)
266 regs_buff[39 + i] = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(i));
267 for (i = 0; i < 2; i++)
268 regs_buff[41 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDWBAL(i));
269 for (i = 0; i < 2; i++)
270 regs_buff[43 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDWBAH(i));
272 for (i = 0; i < ARRAY_SIZE(ixgbevf_reg_names); i++)
273 hw_dbg(hw, "%s\t%8.8x\n", ixgbevf_reg_names[i], regs_buff[i]);
276 static void ixgbevf_get_drvinfo(struct net_device *netdev,
277 struct ethtool_drvinfo *drvinfo)
279 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
281 strlcpy(drvinfo->driver, ixgbevf_driver_name, sizeof(drvinfo->driver));
282 strlcpy(drvinfo->version, ixgbevf_driver_version,
283 sizeof(drvinfo->version));
284 strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
285 sizeof(drvinfo->bus_info));
288 static void ixgbevf_get_ringparam(struct net_device *netdev,
289 struct ethtool_ringparam *ring)
291 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
292 struct ixgbevf_ring *tx_ring = adapter->tx_ring;
293 struct ixgbevf_ring *rx_ring = adapter->rx_ring;
295 ring->rx_max_pending = IXGBEVF_MAX_RXD;
296 ring->tx_max_pending = IXGBEVF_MAX_TXD;
297 ring->rx_pending = rx_ring->count;
298 ring->tx_pending = tx_ring->count;
301 static int ixgbevf_set_ringparam(struct net_device *netdev,
302 struct ethtool_ringparam *ring)
304 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
305 struct ixgbevf_ring *tx_ring = NULL, *rx_ring = NULL;
307 u32 new_rx_count, new_tx_count;
309 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
312 new_rx_count = max(ring->rx_pending, (u32)IXGBEVF_MIN_RXD);
313 new_rx_count = min(new_rx_count, (u32)IXGBEVF_MAX_RXD);
314 new_rx_count = ALIGN(new_rx_count, IXGBE_REQ_RX_DESCRIPTOR_MULTIPLE);
316 new_tx_count = max(ring->tx_pending, (u32)IXGBEVF_MIN_TXD);
317 new_tx_count = min(new_tx_count, (u32)IXGBEVF_MAX_TXD);
318 new_tx_count = ALIGN(new_tx_count, IXGBE_REQ_TX_DESCRIPTOR_MULTIPLE);
320 if ((new_tx_count == adapter->tx_ring->count) &&
321 (new_rx_count == adapter->rx_ring->count)) {
326 while (test_and_set_bit(__IXGBEVF_RESETTING, &adapter->state))
330 * If the adapter isn't up and running then just set the
331 * new parameters and scurry for the exits.
333 if (!netif_running(adapter->netdev)) {
334 for (i = 0; i < adapter->num_tx_queues; i++)
335 adapter->tx_ring[i].count = new_tx_count;
336 for (i = 0; i < adapter->num_rx_queues; i++)
337 adapter->rx_ring[i].count = new_rx_count;
338 adapter->tx_ring_count = new_tx_count;
339 adapter->rx_ring_count = new_rx_count;
343 tx_ring = kcalloc(adapter->num_tx_queues,
344 sizeof(struct ixgbevf_ring), GFP_KERNEL);
350 rx_ring = kcalloc(adapter->num_rx_queues,
351 sizeof(struct ixgbevf_ring), GFP_KERNEL);
357 ixgbevf_down(adapter);
359 memcpy(tx_ring, adapter->tx_ring,
360 adapter->num_tx_queues * sizeof(struct ixgbevf_ring));
361 for (i = 0; i < adapter->num_tx_queues; i++) {
362 tx_ring[i].count = new_tx_count;
363 err = ixgbevf_setup_tx_resources(adapter, &tx_ring[i]);
367 ixgbevf_free_tx_resources(adapter,
370 goto err_tx_ring_setup;
372 tx_ring[i].v_idx = adapter->tx_ring[i].v_idx;
375 memcpy(rx_ring, adapter->rx_ring,
376 adapter->num_rx_queues * sizeof(struct ixgbevf_ring));
377 for (i = 0; i < adapter->num_rx_queues; i++) {
378 rx_ring[i].count = new_rx_count;
379 err = ixgbevf_setup_rx_resources(adapter, &rx_ring[i]);
383 ixgbevf_free_rx_resources(adapter,
386 goto err_rx_ring_setup;
388 rx_ring[i].v_idx = adapter->rx_ring[i].v_idx;
392 * Only switch to new rings if all the prior allocations
393 * and ring setups have succeeded.
395 kfree(adapter->tx_ring);
396 adapter->tx_ring = tx_ring;
397 adapter->tx_ring_count = new_tx_count;
399 kfree(adapter->rx_ring);
400 adapter->rx_ring = rx_ring;
401 adapter->rx_ring_count = new_rx_count;
409 for(i = 0; i < adapter->num_tx_queues; i++)
410 ixgbevf_free_tx_resources(adapter, &tx_ring[i]);
419 clear_bit(__IXGBEVF_RESETTING, &adapter->state);
423 static int ixgbevf_get_sset_count(struct net_device *dev, int stringset)
427 return IXGBE_TEST_LEN;
429 return IXGBE_GLOBAL_STATS_LEN;
435 static void ixgbevf_get_ethtool_stats(struct net_device *netdev,
436 struct ethtool_stats *stats, u64 *data)
438 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
441 ixgbevf_update_stats(adapter);
442 for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) {
443 char *p = (char *)adapter +
444 ixgbe_gstrings_stats[i].stat_offset;
445 char *b = (char *)adapter +
446 ixgbe_gstrings_stats[i].base_stat_offset;
447 char *r = (char *)adapter +
448 ixgbe_gstrings_stats[i].saved_reset_offset;
449 data[i] = ((ixgbe_gstrings_stats[i].sizeof_stat ==
450 sizeof(u64)) ? *(u64 *)p : *(u32 *)p) -
451 ((ixgbe_gstrings_stats[i].sizeof_stat ==
452 sizeof(u64)) ? *(u64 *)b : *(u32 *)b) +
453 ((ixgbe_gstrings_stats[i].sizeof_stat ==
454 sizeof(u64)) ? *(u64 *)r : *(u32 *)r);
458 static void ixgbevf_get_strings(struct net_device *netdev, u32 stringset,
461 char *p = (char *)data;
466 memcpy(data, *ixgbe_gstrings_test,
467 IXGBE_TEST_LEN * ETH_GSTRING_LEN);
470 for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) {
471 memcpy(p, ixgbe_gstrings_stats[i].stat_string,
473 p += ETH_GSTRING_LEN;
479 static int ixgbevf_link_test(struct ixgbevf_adapter *adapter, u64 *data)
481 struct ixgbe_hw *hw = &adapter->hw;
486 hw->mac.ops.check_link(hw, &link_speed, &link_up, true);
493 /* ethtool register test data */
494 struct ixgbevf_reg_test {
502 /* In the hardware, registers are laid out either singly, in arrays
503 * spaced 0x40 bytes apart, or in contiguous tables. We assume
504 * most tests take place on arrays or single registers (handled
505 * as a single-element array) and special-case the tables.
506 * Table tests are always pattern tests.
508 * We also make provision for some required setup steps by specifying
509 * registers to be written without any read-back testing.
512 #define PATTERN_TEST 1
513 #define SET_READ_TEST 2
514 #define WRITE_NO_TEST 3
515 #define TABLE32_TEST 4
516 #define TABLE64_TEST_LO 5
517 #define TABLE64_TEST_HI 6
519 /* default VF register test */
520 static const struct ixgbevf_reg_test reg_test_vf[] = {
521 { IXGBE_VFRDBAL(0), 2, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFF80 },
522 { IXGBE_VFRDBAH(0), 2, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
523 { IXGBE_VFRDLEN(0), 2, PATTERN_TEST, 0x000FFF80, 0x000FFFFF },
524 { IXGBE_VFRXDCTL(0), 2, WRITE_NO_TEST, 0, IXGBE_RXDCTL_ENABLE },
525 { IXGBE_VFRDT(0), 2, PATTERN_TEST, 0x0000FFFF, 0x0000FFFF },
526 { IXGBE_VFRXDCTL(0), 2, WRITE_NO_TEST, 0, 0 },
527 { IXGBE_VFTDBAL(0), 2, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF },
528 { IXGBE_VFTDBAH(0), 2, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF },
529 { IXGBE_VFTDLEN(0), 2, PATTERN_TEST, 0x000FFF80, 0x000FFF80 },
533 static const u32 register_test_patterns[] = {
534 0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF
537 #define REG_PATTERN_TEST(R, M, W) \
539 u32 pat, val, before; \
540 for (pat = 0; pat < ARRAY_SIZE(register_test_patterns); pat++) { \
541 before = readl(adapter->hw.hw_addr + R); \
542 writel((register_test_patterns[pat] & W), \
543 (adapter->hw.hw_addr + R)); \
544 val = readl(adapter->hw.hw_addr + R); \
545 if (val != (register_test_patterns[pat] & W & M)) { \
546 hw_dbg(&adapter->hw, \
547 "pattern test reg %04X failed: got " \
548 "0x%08X expected 0x%08X\n", \
549 R, val, (register_test_patterns[pat] & W & M)); \
551 writel(before, adapter->hw.hw_addr + R); \
554 writel(before, adapter->hw.hw_addr + R); \
558 #define REG_SET_AND_CHECK(R, M, W) \
561 before = readl(adapter->hw.hw_addr + R); \
562 writel((W & M), (adapter->hw.hw_addr + R)); \
563 val = readl(adapter->hw.hw_addr + R); \
564 if ((W & M) != (val & M)) { \
565 pr_err("set/check reg %04X test failed: got 0x%08X expected " \
566 "0x%08X\n", R, (val & M), (W & M)); \
568 writel(before, (adapter->hw.hw_addr + R)); \
571 writel(before, (adapter->hw.hw_addr + R)); \
574 static int ixgbevf_reg_test(struct ixgbevf_adapter *adapter, u64 *data)
576 const struct ixgbevf_reg_test *test;
582 * Perform the register test, looping through the test table
583 * until we either fail or reach the null entry.
586 for (i = 0; i < test->array_len; i++) {
587 switch (test->test_type) {
589 REG_PATTERN_TEST(test->reg + (i * 0x40),
594 REG_SET_AND_CHECK(test->reg + (i * 0x40),
600 (adapter->hw.hw_addr + test->reg)
604 REG_PATTERN_TEST(test->reg + (i * 4),
608 case TABLE64_TEST_LO:
609 REG_PATTERN_TEST(test->reg + (i * 8),
613 case TABLE64_TEST_HI:
614 REG_PATTERN_TEST((test->reg + 4) + (i * 8),
627 static void ixgbevf_diag_test(struct net_device *netdev,
628 struct ethtool_test *eth_test, u64 *data)
630 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
631 bool if_running = netif_running(netdev);
633 set_bit(__IXGBEVF_TESTING, &adapter->state);
634 if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
637 hw_dbg(&adapter->hw, "offline testing starting\n");
639 /* Link test performed before hardware reset so autoneg doesn't
640 * interfere with test result */
641 if (ixgbevf_link_test(adapter, &data[1]))
642 eth_test->flags |= ETH_TEST_FL_FAILED;
645 /* indicate we're in test mode */
648 ixgbevf_reset(adapter);
650 hw_dbg(&adapter->hw, "register testing starting\n");
651 if (ixgbevf_reg_test(adapter, &data[0]))
652 eth_test->flags |= ETH_TEST_FL_FAILED;
654 ixgbevf_reset(adapter);
656 clear_bit(__IXGBEVF_TESTING, &adapter->state);
660 hw_dbg(&adapter->hw, "online testing starting\n");
662 if (ixgbevf_link_test(adapter, &data[1]))
663 eth_test->flags |= ETH_TEST_FL_FAILED;
665 /* Online tests aren't run; pass by default */
668 clear_bit(__IXGBEVF_TESTING, &adapter->state);
670 msleep_interruptible(4 * 1000);
673 static int ixgbevf_nway_reset(struct net_device *netdev)
675 struct ixgbevf_adapter *adapter = netdev_priv(netdev);
677 if (netif_running(netdev)) {
678 if (!adapter->dev_closed)
679 ixgbevf_reinit_locked(adapter);
685 static const struct ethtool_ops ixgbevf_ethtool_ops = {
686 .get_settings = ixgbevf_get_settings,
687 .get_drvinfo = ixgbevf_get_drvinfo,
688 .get_regs_len = ixgbevf_get_regs_len,
689 .get_regs = ixgbevf_get_regs,
690 .nway_reset = ixgbevf_nway_reset,
691 .get_link = ethtool_op_get_link,
692 .get_ringparam = ixgbevf_get_ringparam,
693 .set_ringparam = ixgbevf_set_ringparam,
694 .get_msglevel = ixgbevf_get_msglevel,
695 .set_msglevel = ixgbevf_set_msglevel,
696 .self_test = ixgbevf_diag_test,
697 .get_sset_count = ixgbevf_get_sset_count,
698 .get_strings = ixgbevf_get_strings,
699 .get_ethtool_stats = ixgbevf_get_ethtool_stats,
702 void ixgbevf_set_ethtool_ops(struct net_device *netdev)
704 SET_ETHTOOL_OPS(netdev, &ixgbevf_ethtool_ops);