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/Linux-v5.15/include/uapi/linux/
Dmii.h44 #define BMCR_FULLDPLX 0x0100 /* Full duplex */
65 #define BMSR_10HALF 0x0800 /* Can do 10mbps, half-duplex */
66 #define BMSR_10FULL 0x1000 /* Can do 10mbps, full-duplex */
67 #define BMSR_100HALF 0x2000 /* Can do 100mbps, half-duplex */
68 #define BMSR_100FULL 0x4000 /* Can do 100mbps, full-duplex */
74 #define ADVERTISE_10HALF 0x0020 /* Try for 10mbps half-duplex */
75 #define ADVERTISE_1000XFULL 0x0020 /* Try for 1000BASE-X full-duplex */
76 #define ADVERTISE_10FULL 0x0040 /* Try for 10mbps full-duplex */
77 #define ADVERTISE_1000XHALF 0x0040 /* Try for 1000BASE-X half-duplex */
78 #define ADVERTISE_100HALF 0x0080 /* Try for 100mbps half-duplex */
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Dmdio.h333 #define MDIO_USXGMII_FULL_DUPLEX 0x1000 /* USXGMII full duplex */
334 #define MDIO_USXGMII_DPX_SPD_MASK 0x1e00 /* USXGMII duplex and speed bits */
336 #define MDIO_USXGMII_10HALF 0x0000 /* 10Mbps half-duplex */
337 #define MDIO_USXGMII_10FULL 0x1000 /* 10Mbps full-duplex */
339 #define MDIO_USXGMII_100HALF 0x0200 /* 100Mbps half-duplex */
340 #define MDIO_USXGMII_100FULL 0x1200 /* 100Mbps full-duplex */
342 #define MDIO_USXGMII_1000HALF 0x0400 /* 1000Mbps half-duplex */
343 #define MDIO_USXGMII_1000FULL 0x1400 /* 1000Mbps full-duplex */
345 #define MDIO_USXGMII_10GHALF 0x0600 /* 10Gbps half-duplex */
346 #define MDIO_USXGMII_10GFULL 0x1600 /* 10Gbps full-duplex */
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/Linux-v5.15/drivers/net/ethernet/marvell/prestera/
Dprestera_ethtool.c25 u8 duplex; member
32 .duplex = PRESTERA_PORT_DUPLEX_HALF,
39 .duplex = PRESTERA_PORT_DUPLEX_FULL,
46 .duplex = PRESTERA_PORT_DUPLEX_HALF,
53 .duplex = PRESTERA_PORT_DUPLEX_FULL,
60 .duplex = PRESTERA_PORT_DUPLEX_HALF,
67 .duplex = PRESTERA_PORT_DUPLEX_FULL,
74 .duplex = PRESTERA_PORT_DUPLEX_FULL,
81 .duplex = PRESTERA_PORT_DUPLEX_FULL,
88 .duplex = PRESTERA_PORT_DUPLEX_FULL,
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/Linux-v5.15/Documentation/networking/device_drivers/ethernet/3com/
D3c509.rst29 - 3c509B (later revision of the ISA card; supports full-duplex)
31 - 3c589B (later revision of the 3c589; supports full-duplex)
47 needed except to enable full-duplex mode (see below). An example of the syntax
62 Full-duplex mode
65 The v1.18c driver added support for the 3c509B's full-duplex capabilities.
66 In order to enable and successfully use full-duplex mode, three conditions
70 duplex operations. Currently, the only members of the 3c509 family that are
71 positively known to support full-duplex are the 3c509B (ISA bus) and 3c589B
73 full-duplex mode; these include the original 3c509 (no "B"), the original
78 AUI and 10base2 network cabling is physically incapable of full-duplex
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/Linux-v5.15/sound/core/seq/
Dseq_dummy.c39 The model option "duplex=1" enables duplex operation to the port.
40 In duplex mode, a pair of ports are created instead of single port,
43 In duplex mode, each port has DUPLEX capability.
54 static bool duplex; variable
58 module_param(duplex, bool, 0444);
59 MODULE_PARM_DESC(duplex, "create DUPLEX ports");
64 int duplex; member
85 if (p->duplex) in dummy_input()
117 rec->duplex = duplex; in create_port()
121 if (duplex) in create_port()
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/Linux-v5.15/drivers/net/ethernet/oki-semi/pch_gbe/
Dpch_gbe_param.c48 * Duplex - User Specified Duplex Override
50 * - 0: auto-negotiate for duplex
51 * - 1: only link at half duplex
52 * - 2: only link at full duplex
55 static int Duplex = OPTION_UNSET; variable
56 module_param(Duplex, int, 0);
57 MODULE_PARM_DESC(Duplex, "Duplex setting");
66 * The AutoNeg value is a bit mask describing which speed and duplex
68 * The supported speed and duplex modes are listed below
72 * Duplex Full Full Half Full Half
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/Linux-v5.15/drivers/net/
Dmii.c108 ecmd->duplex = !!(nego & ADVERTISED_1000baseT_Full); in mii_ethtool_gset()
112 ecmd->duplex = !!(nego & ADVERTISED_100baseT_Full); in mii_ethtool_gset()
115 ecmd->duplex = !!(nego & ADVERTISED_10baseT_Full); in mii_ethtool_gset()
126 ecmd->duplex = (bmcr & BMCR_FULLDPLX) ? DUPLEX_FULL : DUPLEX_HALF; in mii_ethtool_gset()
129 mii->full_duplex = ecmd->duplex; in mii_ethtool_gset()
193 cmd->base.duplex = !!(nego & ADVERTISED_1000baseT_Full); in mii_ethtool_get_link_ksettings()
197 cmd->base.duplex = !!(nego & ADVERTISED_100baseT_Full); in mii_ethtool_get_link_ksettings()
200 cmd->base.duplex = !!(nego & ADVERTISED_10baseT_Full); in mii_ethtool_get_link_ksettings()
210 cmd->base.duplex = (bmcr & BMCR_FULLDPLX) ? in mii_ethtool_get_link_ksettings()
216 mii->full_duplex = cmd->base.duplex; in mii_ethtool_get_link_ksettings()
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Dsungem_phy.c42 { 0, 0, 0 }, /* 10BT Half Duplex */
43 { 1, 0, 0 }, /* 10BT Full Duplex */
44 { 0, 1, 0 }, /* 100BT Half Duplex */
45 { 0, 1, 0 }, /* 100BT Half Duplex */
46 { 1, 1, 0 }, /* 100BT Full Duplex*/
196 /* Configure for gigabit full duplex */ in bcm5400_init()
260 /* Configure for gigabit full duplex */ in bcm5401_init()
320 phy->duplex = DUPLEX_HALF; in genmii_setup_aneg()
351 phy->duplex = fd; in genmii_setup_forced()
360 /* Select speed & duplex */ in genmii_setup_forced()
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/Linux-v5.15/Documentation/networking/device_drivers/ethernet/ti/
Dtlan.rst81 3. You can set duplex=1 to force half duplex, and duplex=2 to
82 force full duplex.
89 5. You have to use speed=X duplex=Y together now. If you just
91 To force a 10Mbps Half-Duplex link do "insmod tlan.o speed=10
92 duplex=1".
107 0x02 use half duplex
108 0x04 use full duplex
113 You also need to set both speed and duplex settings when forcing
115 ether=0,0,0x12,0,eth0 will force link to 100Mbps Half-Duplex.
121 insmod tlan speed=0,100 duplex=0,1
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/Linux-v5.15/drivers/net/ethernet/stmicro/stmmac/
Daltr_tse_pcs.c133 u16 duplex = 0; in auto_nego_timer_callback() local
144 duplex = val & TSE_PCS_PARTNER_DUPLEX_MASK; in auto_nego_timer_callback()
147 duplex == TSE_PCS_PARTNER_DUPLEX_FULL) in auto_nego_timer_callback()
151 duplex == TSE_PCS_PARTNER_DUPLEX_FULL) in auto_nego_timer_callback()
155 duplex == TSE_PCS_PARTNER_DUPLEX_FULL) in auto_nego_timer_callback()
159 duplex == TSE_PCS_PARTNER_DUPLEX_HALF) in auto_nego_timer_callback()
161 "Adapter does not support Half Duplex\n"); in auto_nego_timer_callback()
163 duplex == TSE_PCS_PARTNER_DUPLEX_HALF) in auto_nego_timer_callback()
165 "Adapter does not support Half Duplex\n"); in auto_nego_timer_callback()
167 duplex == TSE_PCS_PARTNER_DUPLEX_HALF) in auto_nego_timer_callback()
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/Linux-v5.15/Documentation/networking/device_drivers/ethernet/intel/
De1000.rst15 - Speed and Duplex Configuration
40 For more information about the AutoNeg, Duplex, and Speed
41 parameters, see the "Speed and Duplex Configuration" section in
57 This parameter is a bit-mask that specifies the speed and duplex settings
59 Duplex parameters must not be specified.
62 Refer to the Speed and Duplex section of this readme for more
65 Duplex section in Command Line Parameters
74 either one or two-directional. If both Duplex and the link partner are
75 set to auto-negotiate, the board auto-detects the correct duplex. If the
76 link partner is forced (either full or half), Duplex defaults to half-
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/Linux-v5.15/drivers/net/ethernet/intel/e1000/
De1000_param.c58 /* User Specified Duplex Override
61 * - 0 - auto-negotiate for duplex
62 * - 1 - only link at half duplex
63 * - 2 - only link at full duplex
67 E1000_PARAM(Duplex, "Duplex setting");
73 * The AutoNeg value is a bit mask describing which speed and duplex
75 * The supported speed and duplex modes are listed below
79 * Duplex Full Full Half Full Half
510 * Handles speed and duplex options on fiber adapters
521 e_dev_info("Duplex not valid for fiber adapters, parameter " in e1000_check_fiber_options()
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/Linux-v5.15/drivers/net/ethernet/atheros/atlx/
Datlx.h228 /* MAC Half-Duplex Control Register */
303 #define MII_CR_FULL_DUPLEX 0x0100 /* FDX =1, half duplex =0 */
327 #define MII_SR_100T2_HD_CAPS 0x0200 /* 100T2 Half Duplex Capable */
328 #define MII_SR_100T2_FD_CAPS 0x0400 /* 100T2 Full Duplex Capable */
329 #define MII_SR_10T_HD_CAPS 0x0800 /* 10T Half Duplex Capable */
330 #define MII_SR_10T_FD_CAPS 0x1000 /* 10T Full Duplex Capable */
331 #define MII_SR_100X_HD_CAPS 0x2000 /* 100X Half Duplex Capable */
332 #define MII_SR_100X_FD_CAPS 0x4000 /* 100X Full Duplex Capable */
337 #define MII_LPA_10HALF 0x0020 /* Can do 10mbps half-duplex */
338 #define MII_LPA_10FULL 0x0040 /* Can do 10mbps full-duplex */
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/Linux-v5.15/include/linux/
Dphylink.h37 * @duplex: link duplex mode, one of DUPLEX_* constants.
48 int duplex; member
111 phy_interface_t interface, int speed, int duplex,
128 * clearing unsupported speeds and duplex settings. The port modes
151 * current speed in @state->speed, duplex mode in @state->duplex, pause
216 * @state->duplex and @state->pause to configure the MAC, but this is
222 * Deprecated state members: speed, duplex, pause.
235 * @state->interface. Duplex and pause modes are negotiated via
238 * flags. Beware of MACs which only support full duplex at gigabit
241 * If in Cisco SGMII mode, the link speed and duplex mode are passed
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/Linux-v5.15/drivers/net/phy/
Dswphy.c38 * This means the speed table must contain both duplex settings, and the
39 * duplex table must contain all speed settings.
56 static const struct swmii_regs duplex[] = { variable
130 duplex_index = state->duplex ? SWMII_DUPLEX_FULL : SWMII_DUPLEX_HALF; in swphy_read_reg()
132 bmsr |= speed[speed_index].bmsr & duplex[duplex_index].bmsr; in swphy_read_reg()
133 estat |= speed[speed_index].estat & duplex[duplex_index].estat; in swphy_read_reg()
138 lpa |= speed[speed_index].lpa & duplex[duplex_index].lpa; in swphy_read_reg()
139 lpagb |= speed[speed_index].lpagb & duplex[duplex_index].lpagb; in swphy_read_reg()
Dphy.c107 phy_duplex_to_str(phydev->duplex), in phy_print_status()
174 * @duplex: desired duplex
178 * - an exact match for the specified speed and duplex mode
185 phy_find_valid(int speed, int duplex, unsigned long *supported) in phy_find_valid() argument
187 return phy_lookup_setting(speed, duplex, supported, false); in phy_find_valid()
209 * speed, duplex, and feature mask
211 * @duplex: duplex to match
216 static inline bool phy_check_valid(int speed, int duplex, in phy_check_valid() argument
219 return !!phy_lookup_setting(speed, duplex, features, true); in phy_check_valid()
223 * phy_sanitize_settings - make sure the PHY is set to supported speed and duplex
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Dphy-core.c61 * phy_duplex_to_str - Return string describing the duplex
63 * @duplex: Duplex setting to describe
65 const char *phy_duplex_to_str(unsigned int duplex) in phy_duplex_to_str() argument
67 if (duplex == DUPLEX_HALF) in phy_duplex_to_str()
69 if (duplex == DUPLEX_FULL) in phy_duplex_to_str()
71 if (duplex == DUPLEX_UNKNOWN) in phy_duplex_to_str()
77 /* A mapping of all SUPPORTED settings to speed/duplex. This table
82 #define PHY_SETTING(s, d, b) { .speed = SPEED_ ## s, .duplex = DUPLEX_ ## d, \
185 * @duplex: duplex to match
190 * duplex, and which is supported.
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/Linux-v5.15/Documentation/spi/
Dspidev.rst5 SPI devices have a limited userspace API, supporting basic half-duplex
7 full duplex transfers and device I/O configuration are also available.
84 Standard read() and write() operations are obviously only half-duplex, and
85 the chipselect is deactivated between those operations. Full-duplex access,
146 FULL DUPLEX CHARACTER DEVICE API
150 full duplex programming interface. (Although it doesn't perform a full duplex
155 The example shows one half-duplex RPC-style request and response message.
162 To make a full duplex request, provide both rx_buf and tx_buf for the
/Linux-v5.15/Documentation/networking/device_drivers/ethernet/dlink/
Ddl2k.rst215 10mbps_hd 10Mbps half duplex.
216 10mbps_fd 10Mbps full duplex.
217 100mbps_hd 100Mbps half duplex.
218 100mbps_fd 100Mbps full duplex.
219 1000mbps_fd 1000Mbps full duplex.
220 1000mbps_hd 1000Mbps half duplex.
222 1 10Mbps half duplex.
223 2 10Mbps full duplex.
224 3 100Mbps half duplex.
225 4 100Mbps full duplex.
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/Linux-v5.15/drivers/net/ethernet/intel/igc/
Digc_phy.c282 /* Do we want to advertise 10 Mb Half Duplex? */ in igc_phy_setup_autoneg()
284 hw_dbg("Advertise 10mb Half duplex\n"); in igc_phy_setup_autoneg()
288 /* Do we want to advertise 10 Mb Full Duplex? */ in igc_phy_setup_autoneg()
290 hw_dbg("Advertise 10mb Full duplex\n"); in igc_phy_setup_autoneg()
294 /* Do we want to advertise 100 Mb Half Duplex? */ in igc_phy_setup_autoneg()
296 hw_dbg("Advertise 100mb Half duplex\n"); in igc_phy_setup_autoneg()
300 /* Do we want to advertise 100 Mb Full Duplex? */ in igc_phy_setup_autoneg()
302 hw_dbg("Advertise 100mb Full duplex\n"); in igc_phy_setup_autoneg()
306 /* We do not allow the Phy to advertise 1000 Mb Half Duplex */ in igc_phy_setup_autoneg()
308 hw_dbg("Advertise 1000mb Half duplex request denied!\n"); in igc_phy_setup_autoneg()
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/Linux-v5.15/drivers/net/ethernet/ibm/ehea/
Dehea_ethtool.c51 cmd->base.duplex = port->full_duplex == 1 ? in ehea_get_link_ksettings()
55 cmd->base.duplex = DUPLEX_UNKNOWN; in ehea_get_link_ksettings()
98 if (cmd->base.duplex == DUPLEX_FULL) in ehea_set_link_ksettings()
105 if (cmd->base.duplex == DUPLEX_FULL) in ehea_set_link_ksettings()
112 if (cmd->base.duplex == DUPLEX_FULL) in ehea_set_link_ksettings()
119 if (cmd->base.duplex == DUPLEX_FULL) in ehea_set_link_ksettings()
137 "Port speed successfully set: %dMbps %s Duplex\n", in ehea_set_link_ksettings()
153 "Port speed successfully set: %dMbps %s Duplex\n", in ehea_nway_reset()
/Linux-v5.15/net/ethtool/
Dcommon.h11 /* compose link mode index from speed, type and duplex */
12 #define ETHTOOL_LINK_MODE(speed, type, duplex) \ argument
13 ETHTOOL_LINK_MODE_ ## speed ## base ## type ## _ ## duplex ## _BIT
20 u8 duplex; member
/Linux-v5.15/Documentation/devicetree/bindings/phy/
Dphy-ocelot-serdes.txt13 half/full-duplex and 1000Mbps in full-duplex mode while SERDES6G supports
14 10/100Mbps in half/full-duplex and 1000/2500Mbps in full-duplex mode.
/Linux-v5.15/drivers/net/pcs/
Dpcs-lynx.c78 state->duplex = DUPLEX_FULL; in lynx_pcs_get_state_2500basex()
109 phy_duplex_to_str(state->duplex), in lynx_pcs_get_state()
224 int speed, int duplex) in lynx_pcs_link_up_sgmii() argument
236 if (duplex == DUPLEX_HALF) in lynx_pcs_link_up_sgmii()
281 int speed, int duplex) in lynx_pcs_link_up_2500basex() argument
292 if (duplex == DUPLEX_HALF) in lynx_pcs_link_up_2500basex()
303 int speed, int duplex) in lynx_pcs_link_up() argument
310 lynx_pcs_link_up_sgmii(lynx->mdio, mode, speed, duplex); in lynx_pcs_link_up()
313 lynx_pcs_link_up_2500basex(lynx->mdio, mode, speed, duplex); in lynx_pcs_link_up()
/Linux-v5.15/drivers/net/ethernet/dec/tulip/
Dde4x5.h30 #define DE4X5_FDR iobase+(0x058 << lp->bus) /* Full Duplex Register */
288 #define STS_FD 0x00000800 /* Full-Duplex Short Frame Received */
348 #define OMR_FDX 0x00000200 /* Full Duplex Mode */
380 #define IMR_FDM 0x00000800 /* Full-Duplex (Short Frame) Mask */
476 #define MII_CR_FDM 0x0100 /* Full Duplex Mode */
483 #define MII_SR_TXFD 0x4000 /* 100BASE-TX Full Duplex capable */
484 #define MII_SR_TXHD 0x2000 /* 100BASE-TX Half Duplex capable */
485 #define MII_SR_TFD 0x1000 /* 10BASE-T Full Duplex capable */
486 #define MII_SR_THD 0x0800 /* 10BASE-T Half Duplex capable */
500 #define MII_ANA_FDAM 0x0140 /* Full Duplex Technology Ability Mask */
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