litmus-rt.git - The LITMUS^RT kernel.

The LITMUS^RT kernel.

Bjoern Brandenburg

about summary refs log tree commit diff stats

diff options

author	Linus Torvalds <torvalds@g5.osdl.org>	2005-10-07 00:54:21 -0400
committer	Linus Torvalds <torvalds@g5.osdl.org>	2005-10-07 00:54:21 -0400
commit	829841146878e082613a49581ae252c071057c23 (patch)
tree	b38d26d6c99f043f14242351ac084f8b088a772b /scripts/mod/file2alias.c
parent	edb4a3534adbaf90768d67da35f0bfeac4767db6 (diff)

Avoid 'names_cache' memory leak with CONFIG_AUDITSYSCALL

The nameidata "last.name" is always allocated with "__getname()", and should always be free'd with "__putname()". Using "putname()" without the underscores will leak memory, because the allocation will have been hidden from the AUDITSYSCALL code. Arguably the real bug is that the AUDITSYSCALL code is really broken, but in the meantime this fixes the problem people see. Reported by Robert Derr, patch by Rick Lindsley. Acked-by: Al Viro <viro@ftp.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Diffstat (limited to 'scripts/mod/file2alias.c')

0 files changed, 0 insertions, 0 deletions

ently for ICH9 devices only)' href='/cgit/cgit.cgi/litmus-rt-ext-res.git/commit/drivers/net/e1000e/82571.c?id=bc7f75fa97884d41efbfde1397b621fefb2550b4'>bc7f75fa9788

25
26
27

36
37

38
39

40
41
42

49
50

53
54
55

56
57

73
74
75

77
78

80
81
82

84
85

91
92

93
94

96
97

113
114
115

125
126
127

165
166
167

181
182
183

189
190
191

213
214
215

219
220
221

228
229

230
231

239
240

253
254

263
264
265

267
268

269
270

274
275
276

277
278

279
280
281

282
283
284

285
286
287

325
326

328
329
330

332
333

336
337
338

382
383
384

386
387

388
389

409
410

416
417

418
419

439
440

455
456

457
458

481
482

493
494

517
518

530
531
532

550
551

603
604

673
674

675
676

678
679

753
754

757
758
759

828
829

831
832

833
834

872
873
874

911
912

921
922

923
924

925
926

958
959
960

972
973
974

975
976
977

978
979

983
984

985
986

987
988

989
990

992
993
994

1000
1001

1002
1003

1009
1010

1011
1012
1013

1033
1034
1035

1036
1037

1038
1039

1047
1048
1049

1055
1056
1057

1066
1067

1096
1097

1117
1118

1123
1124

1125
1126

1127
1128

1129
1130

1137
1138
1139

1142
1143

1168
1169

1173
1174

1177
1178
1179

1182
1183

1186
1187
1188

1190
1191

1193
1194
1195

1196
1197

1216
1217
1218

1219
1220
1221

1227
1228

1230
1231
1232

1242
1243

1260
1261
1262

1268
1269
1270

1273
1274
1275

1276
1277
1278

1280
1281
1282

1309
1310

1311
1312

1314
1315
1316

1317
1318

1383
1384
1385

1389
1390

1392
1393

1396
1397

1398
1399
1400

1413
1414
1415

1455
1456
1457

1479
1480

1482
1483

1494
1495
1496

1509
1510

1518
1519

1528
1529

1541
1542

1545
1546

1553
1554

1556
1557

1560
1561

1584
1585

1608
1609

1612
1613

1625
1626

1674
1675
1676

1730
1731

1778
1779

1805
1806
1807

1825
1826
1827

1835
1836

1871
1872

1877
1878
1879

1885
1886

1896
1897

1903
1904
1905

1910
1911

1914
1915

1928
1929

1932
1933

1946
1947

1950
1951

1953
1954
1955

1959
1960

1961
1962

1964
1965
1966

1967
1968

1974
1975

1985
1986
1987

1988
1989

1992
1993

2003
2004

2005
2006

2007
2008

2010
2011

2015
2016

2018
2019

2028
2029
2030

2035
2036

2046
2047
2048

2051
2052

2057
2058

/* Intel PRO/1000 Linux driver
 * Copyright(c) 1999 - 2015 Intel Corporation.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * The full GNU General Public License is included in this distribution in
 * the file called "COPYING".
 *
 * Contact Information:
 * Linux NICS <linux.nics@intel.com>
 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 */

/* 82571EB Gigabit Ethernet Controller
 * 82571EB Gigabit Ethernet Controller (Copper)
 * 82571EB Gigabit Ethernet Controller (Fiber)
 * 82571EB Dual Port Gigabit Mezzanine Adapter
 * 82571EB Quad Port Gigabit Mezzanine Adapter
 * 82571PT Gigabit PT Quad Port Server ExpressModule
 * 82572EI Gigabit Ethernet Controller (Copper)
 * 82572EI Gigabit Ethernet Controller (Fiber)
 * 82572EI Gigabit Ethernet Controller
 * 82573V Gigabit Ethernet Controller (Copper)
 * 82573E Gigabit Ethernet Controller (Copper)
 * 82573L Gigabit Ethernet Controller
 * 82574L Gigabit Network Connection
 * 82583V Gigabit Network Connection
 */

#include "e1000.h"

static s32 e1000_get_phy_id_82571(struct e1000_hw *hw);
static s32 e1000_setup_copper_link_82571(struct e1000_hw *hw);
static s32 e1000_setup_fiber_serdes_link_82571(struct e1000_hw *hw);
static s32 e1000_check_for_serdes_link_82571(struct e1000_hw *hw);
static s32 e1000_write_nvm_eewr_82571(struct e1000_hw *hw, u16 offset,
				      u16 words, u16 *data);
static s32 e1000_fix_nvm_checksum_82571(struct e1000_hw *hw);
static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw);
static void e1000_clear_hw_cntrs_82571(struct e1000_hw *hw);
static bool e1000_check_mng_mode_82574(struct e1000_hw *hw);
static s32 e1000_led_on_82574(struct e1000_hw *hw);
static void e1000_put_hw_semaphore_82571(struct e1000_hw *hw);
static void e1000_power_down_phy_copper_82571(struct e1000_hw *hw);
static void e1000_put_hw_semaphore_82573(struct e1000_hw *hw);
static s32 e1000_get_hw_semaphore_82574(struct e1000_hw *hw);
static void e1000_put_hw_semaphore_82574(struct e1000_hw *hw);
static s32 e1000_set_d0_lplu_state_82574(struct e1000_hw *hw, bool active);
static s32 e1000_set_d3_lplu_state_82574(struct e1000_hw *hw, bool active);

/**
 *  e1000_init_phy_params_82571 - Init PHY func ptrs.
 *  @hw: pointer to the HW structure
 **/
static s32 e1000_init_phy_params_82571(struct e1000_hw *hw)
{
	struct e1000_phy_info *phy = &hw->phy;
	s32 ret_val;

	if (hw->phy.media_type != e1000_media_type_copper) {
		phy->type = e1000_phy_none;
		return 0;
	}

	phy->addr = 1;
	phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
	phy->reset_delay_us = 100;

	phy->ops.power_up = e1000_power_up_phy_copper;
	phy->ops.power_down = e1000_power_down_phy_copper_82571;

	switch (hw->mac.type) {
	case e1000_82571:
	case e1000_82572:
		phy->type = e1000_phy_igp_2;
		break;
	case e1000_82573:
		phy->type = e1000_phy_m88;
		break;
	case e1000_82574:
	case e1000_82583:
		phy->type = e1000_phy_bm;
		phy->ops.acquire = e1000_get_hw_semaphore_82574;
		phy->ops.release = e1000_put_hw_semaphore_82574;
		phy->ops.set_d0_lplu_state = e1000_set_d0_lplu_state_82574;
		phy->ops.set_d3_lplu_state = e1000_set_d3_lplu_state_82574;
		break;
	default:
		return -E1000_ERR_PHY;
	}

	/* This can only be done after all function pointers are setup. */
	ret_val = e1000_get_phy_id_82571(hw);
	if (ret_val) {
		e_dbg("Error getting PHY ID\n");
		return ret_val;
	}

	/* Verify phy id */
	switch (hw->mac.type) {
	case e1000_82571:
	case e1000_82572:
		if (phy->id != IGP01E1000_I_PHY_ID)
			ret_val = -E1000_ERR_PHY;
		break;
	case e1000_82573:
		if (phy->id != M88E1111_I_PHY_ID)
			ret_val = -E1000_ERR_PHY;
		break;
	case e1000_82574:
	case e1000_82583:
		if (phy->id != BME1000_E_PHY_ID_R2)
			ret_val = -E1000_ERR_PHY;
		break;
	default:
		ret_val = -E1000_ERR_PHY;
		break;
	}

	if (ret_val)
		e_dbg("PHY ID unknown: type = 0x%08x\n", phy->id);

	return ret_val;
}

/**
 *  e1000_init_nvm_params_82571 - Init NVM func ptrs.
 *  @hw: pointer to the HW structure
 **/
static s32 e1000_init_nvm_params_82571(struct e1000_hw *hw)
{
	struct e1000_nvm_info *nvm = &hw->nvm;
	u32 eecd = er32(EECD);
	u16 size;

	nvm->opcode_bits = 8;
	nvm->delay_usec = 1;
	switch (nvm->override) {
	case e1000_nvm_override_spi_large:
		nvm->page_size = 32;
		nvm->address_bits = 16;
		break;
	case e1000_nvm_override_spi_small:
		nvm->page_size = 8;
		nvm->address_bits = 8;
		break;
	default:
		nvm->page_size = eecd & E1000_EECD_ADDR_BITS ? 32 : 8;
		nvm->address_bits = eecd & E1000_EECD_ADDR_BITS ? 16 : 8;
		break;
	}

	switch (hw->mac.type) {
	case e1000_82573:
	case e1000_82574:
	case e1000_82583:
		if (((eecd >> 15) & 0x3) == 0x3) {
			nvm->type = e1000_nvm_flash_hw;
			nvm->word_size = 2048;
			/* Autonomous Flash update bit must be cleared due
			 * to Flash update issue.
			 */
			eecd &= ~E1000_EECD_AUPDEN;
			ew32(EECD, eecd);
			break;
		}
		/* Fall Through */
	default:
		nvm->type = e1000_nvm_eeprom_spi;
		size = (u16)((eecd & E1000_EECD_SIZE_EX_MASK) >>
			     E1000_EECD_SIZE_EX_SHIFT);
		/* Added to a constant, "size" becomes the left-shift value
		 * for setting word_size.
		 */
		size += NVM_WORD_SIZE_BASE_SHIFT;

		/* EEPROM access above 16k is unsupported */
		if (size > 14)
			size = 14;
		nvm->word_size = BIT(size);
		break;
	}

	/* Function Pointers */
	switch (hw->mac.type) {
	case e1000_82574:
	case e1000_82583:
		nvm->ops.acquire = e1000_get_hw_semaphore_82574;
		nvm->ops.release = e1000_put_hw_semaphore_82574;
		break;
	default:
		break;
	}

	return 0;
}

/**
 *  e1000_init_mac_params_82571 - Init MAC func ptrs.
 *  @hw: pointer to the HW structure
 **/
static s32 e1000_init_mac_params_82571(struct e1000_hw *hw)
{
	struct e1000_mac_info *mac = &hw->mac;
	u32 swsm = 0;
	u32 swsm2 = 0;
	bool force_clear_smbi = false;

	/* Set media type and media-dependent function pointers */
	switch (hw->adapter->pdev->device) {
	case E1000_DEV_ID_82571EB_FIBER:
	case E1000_DEV_ID_82572EI_FIBER:
	case E1000_DEV_ID_82571EB_QUAD_FIBER:
		hw->phy.media_type = e1000_media_type_fiber;
		mac->ops.setup_physical_interface =
		    e1000_setup_fiber_serdes_link_82571;
		mac->ops.check_for_link = e1000e_check_for_fiber_link;
		mac->ops.get_link_up_info =
		    e1000e_get_speed_and_duplex_fiber_serdes;
		break;
	case E1000_DEV_ID_82571EB_SERDES:
	case E1000_DEV_ID_82571EB_SERDES_DUAL:
	case E1000_DEV_ID_82571EB_SERDES_QUAD:
	case E1000_DEV_ID_82572EI_SERDES:
		hw->phy.media_type = e1000_media_type_internal_serdes;
		mac->ops.setup_physical_interface =
		    e1000_setup_fiber_serdes_link_82571;
		mac->ops.check_for_link = e1000_check_for_serdes_link_82571;
		mac->ops.get_link_up_info =
		    e1000e_get_speed_and_duplex_fiber_serdes;
		break;
	default:
		hw->phy.media_type = e1000_media_type_copper;
		mac->ops.setup_physical_interface =
		    e1000_setup_copper_link_82571;
		mac->ops.check_for_link = e1000e_check_for_copper_link;
		mac->ops.get_link_up_info = e1000e_get_speed_and_duplex_copper;
		break;
	}

	/* Set mta register count */
	mac->mta_reg_count = 128;
	/* Set rar entry count */
	mac->rar_entry_count = E1000_RAR_ENTRIES;
	/* Adaptive IFS supported */
	mac->adaptive_ifs = true;

	/* MAC-specific function pointers */
	switch (hw->mac.type) {
	case e1000_82573:
		mac->ops.set_lan_id = e1000_set_lan_id_single_port;
		mac->ops.check_mng_mode = e1000e_check_mng_mode_generic;
		mac->ops.led_on = e1000e_led_on_generic;
		mac->ops.blink_led = e1000e_blink_led_generic;

		/* FWSM register */
		mac->has_fwsm = true;
		/* ARC supported; valid only if manageability features are
		 * enabled.
		 */
		mac->arc_subsystem_valid = !!(er32(FWSM) &
					      E1000_FWSM_MODE_MASK);
		break;
	case e1000_82574:
	case e1000_82583:
		mac->ops.set_lan_id = e1000_set_lan_id_single_port;
		mac->ops.check_mng_mode = e1000_check_mng_mode_82574;
		mac->ops.led_on = e1000_led_on_82574;
		break;
	default:
		mac->ops.check_mng_mode = e1000e_check_mng_mode_generic;
		mac->ops.led_on = e1000e_led_on_generic;
		mac->ops.blink_led = e1000e_blink_led_generic;

		/* FWSM register */
		mac->has_fwsm = true;
		break;
	}

	/* Ensure that the inter-port SWSM.SMBI lock bit is clear before
	 * first NVM or PHY access. This should be done for single-port
	 * devices, and for one port only on dual-port devices so that
	 * for those devices we can still use the SMBI lock to synchronize
	 * inter-port accesses to the PHY & NVM.
	 */
	switch (hw->mac.type) {
	case e1000_82571:
	case e1000_82572:
		swsm2 = er32(SWSM2);

		if (!(swsm2 & E1000_SWSM2_LOCK)) {
			/* Only do this for the first interface on this card */
			ew32(SWSM2, swsm2 | E1000_SWSM2_LOCK);
			force_clear_smbi = true;
		} else {
			force_clear_smbi = false;
		}
		break;
	default:
		force_clear_smbi = true;
		break;
	}

	if (force_clear_smbi) {
		/* Make sure SWSM.SMBI is clear */
		swsm = er32(SWSM);
		if (swsm & E1000_SWSM_SMBI) {
			/* This bit should not be set on a first interface, and
			 * indicates that the bootagent or EFI code has
			 * improperly left this bit enabled
			 */
			e_dbg("Please update your 82571 Bootagent\n");
		}
		ew32(SWSM, swsm & ~E1000_SWSM_SMBI);
	}

	/* Initialize device specific counter of SMBI acquisition timeouts. */
	hw->dev_spec.e82571.smb_counter = 0;

	return 0;
}

static s32 e1000_get_variants_82571(struct e1000_adapter *adapter)
{
	struct e1000_hw *hw = &adapter->hw;
	static int global_quad_port_a;	/* global port a indication */
	struct pci_dev *pdev = adapter->pdev;
	int is_port_b = er32(STATUS) & E1000_STATUS_FUNC_1;
	s32 rc;

	rc = e1000_init_mac_params_82571(hw);
	if (rc)
		return rc;

	rc = e1000_init_nvm_params_82571(hw);
	if (rc)
		return rc;

	rc = e1000_init_phy_params_82571(hw);
	if (rc)
		return rc;

	/* tag quad port adapters first, it's used below */
	switch (pdev->device) {
	case E1000_DEV_ID_82571EB_QUAD_COPPER:
	case E1000_DEV_ID_82571EB_QUAD_FIBER:
	case E1000_DEV_ID_82571EB_QUAD_COPPER_LP:
	case E1000_DEV_ID_82571PT_QUAD_COPPER:
		adapter->flags |= FLAG_IS_QUAD_PORT;
		/* mark the first port */
		if (global_quad_port_a == 0)
			adapter->flags |= FLAG_IS_QUAD_PORT_A;
		/* Reset for multiple quad port adapters */
		global_quad_port_a++;
		if (global_quad_port_a == 4)
			global_quad_port_a = 0;
		break;
	default:
		break;
	}

	switch (adapter->hw.mac.type) {
	case e1000_82571:
		/* these dual ports don't have WoL on port B at all */
		if (((pdev->device == E1000_DEV_ID_82571EB_FIBER) ||
		     (pdev->device == E1000_DEV_ID_82571EB_SERDES) ||
		     (pdev->device == E1000_DEV_ID_82571EB_COPPER)) &&
		    (is_port_b))
			adapter->flags &= ~FLAG_HAS_WOL;
		/* quad ports only support WoL on port A */
		if (adapter->flags & FLAG_IS_QUAD_PORT &&
		    (!(adapter->flags & FLAG_IS_QUAD_PORT_A)))
			adapter->flags &= ~FLAG_HAS_WOL;
		/* Does not support WoL on any port */
		if (pdev->device == E1000_DEV_ID_82571EB_SERDES_QUAD)
			adapter->flags &= ~FLAG_HAS_WOL;
		break;
	case e1000_82573:
		if (pdev->device == E1000_DEV_ID_82573L) {
			adapter->flags |= FLAG_HAS_JUMBO_FRAMES;
			adapter->max_hw_frame_size = DEFAULT_JUMBO;
		}
		break;
	default:
		break;
	}

	return 0;
}

/**
 *  e1000_get_phy_id_82571 - Retrieve the PHY ID and revision
 *  @hw: pointer to the HW structure
 *
 *  Reads the PHY registers and stores the PHY ID and possibly the PHY
 *  revision in the hardware structure.
 **/
static s32 e1000_get_phy_id_82571(struct e1000_hw *hw)
{
	struct e1000_phy_info *phy = &hw->phy;
	s32 ret_val;
	u16 phy_id = 0;

	switch (hw->mac.type) {
	case e1000_82571:
	case e1000_82572:
		/* The 82571 firmware may still be configuring the PHY.
		 * In this case, we cannot access the PHY until the
		 * configuration is done.  So we explicitly set the
		 * PHY ID.
		 */
		phy->id = IGP01E1000_I_PHY_ID;
		break;
	case e1000_82573:
		return e1000e_get_phy_id(hw);
	case e1000_82574:
	case e1000_82583:
		ret_val = e1e_rphy(hw, MII_PHYSID1, &phy_id);
		if (ret_val)
			return ret_val;

		phy->id = (u32)(phy_id << 16);
		usleep_range(20, 40);
		ret_val = e1e_rphy(hw, MII_PHYSID2, &phy_id);
		if (ret_val)
			return ret_val;

		phy->id |= (u32)(phy_id);
		phy->revision = (u32)(phy_id & ~PHY_REVISION_MASK);
		break;
	default:
		return -E1000_ERR_PHY;
	}

	return 0;
}

/**
 *  e1000_get_hw_semaphore_82571 - Acquire hardware semaphore
 *  @hw: pointer to the HW structure
 *
 *  Acquire the HW semaphore to access the PHY or NVM
 **/
static s32 e1000_get_hw_semaphore_82571(struct e1000_hw *hw)
{
	u32 swsm;
	s32 sw_timeout = hw->nvm.word_size + 1;


context:
space:
mode: